The Floating Photovoltaic System was installed on the surface of water. There were some researches in this subject. But there was not many studies with experiment on a high waterproof Floating Photovoltaic modules. The aim of this study was to analyze the performance of the Floating Photovoltaic System. For this experiment, a high waterproof Floating Photovoltaic modules were designed and applied to the module capacity of 10 kW Tracking-Type structure. The experiment results indicated the performance of the daily production is 51.6 kW; the production capacity of Floating Photovoltaic System is expected to be 23% higher than that of the ground-mounted photovoltaic system.


The use of information technology has been extended to hospitals. The purpose of the Hospital Management Information System (HMIS) is to improve the quality of patient care and to increase the efficiency and effectiveness of the workers. This study aims to look for usability issues and provide recommendations to achieve the purpose of the system. The usability evaluation was carried out by using the contextual inquiry method involving five doctors as the users of the system. The study was conducted at an emergency room of one regional public hospital in Jakarta. The results show that the system applied the interaction design principles, and it was quite easy to be used by doctors, but it still needed to be improved. The end results of this study are prototype recommendations of the system in accordance with the principles of the interaction design.


The Yucca Mountain Site Characterization Project is investigating the feasibility of locating a high-level radioactive nuclear waste repository at Yucca Mountain, Nevada. As a part of the site characterization efforts, an Exploratory Studies Facility (ESF) is being designed and constructed to provide an underground facility for research and study of the host horizon. Three types of loads, geostatic, seismic and thermal, are considered during the design analysis of ESF underground opening stability. This paper examines the potential impact of the earthquakeinduced dynamic loading on the stability of the ESF underground openings. Design and construction of the ESF consist mainly of a loop tunnel and associated test alcoves. The 7.62-meter diameter main access loop, which includes Topopah Spring North Ramp, Main Ramp, and Topopah Spring South Ramp, is being excavated by a tunnel boring machine. Test alcoves are being excavated either using drill and blast techniques or by mechanical methods.


Purpose
Integrated reporting (IR) is a new trend in corporate reporting that has spread rapidly in recent years for disclosing financial and non-financial information. This study aims to assess the status of the current regulations and the trends in IR disclosure practice in an emerging market, Malaysia, by providing a comparative analysis of the IR disclosure level (IRDL) and IR disclosure quality (IRDQ).

Design/methodology/approach
The current study has developed a comprehensive IR disclosure index based on the international integrated reporting framework (IIRF), which comprises 100 items divided into four categories (background, assurance and reliability, content and form). The data were collected from annual reports of companies listed on the Bursa Malaysia over the three years 2017 to 2019, based on 267 observations. Content analysis technique was used to evaluate and measure IRDL and IRDQ. Descriptive analysis was performed to provide the background statistics of the variables examined.

Findings
IR regulations are at an early stage, and IR adoption is still voluntary in the Malaysian market. Only 267 Malaysian company-year observations during the years 2017–2019 have adopted IR techniques. However, descriptive analysis results showed that Malaysian companies have moved towards the preparation of IR consistent with the IIRF. The findings indicate a significant increase in both IRDL and IRDQ over this period, after the recent recommendation by the Malaysian code of corporate governance (2017) on adopting IR. Further, the results show statistically significant differences in the mean of IRDL and IRDQ between large and small companies.

Practical implications
These results are important for regulators and policymakers in articulating new IR legislation in an emerging market and for corporate entities and investors in shaping their understanding of IR disclosure practice in the Malaysian institutional context.

Originality/value
To the best of the researchers' knowledge, the study is among the first to address the IR regulation status and practice in Malaysian companies. It also established a comprehensive index for measuring IRDL and IRDQ based on the IIRF. The results add to the meagre descriptive literature on IR practice by providing comprehensive insights into IR practice from the perspective of an emerging country.


The paper presents the technique of the strategic and portfolio decision making with important practical value that enables the investor to make an optimal choice of the investee. The effectiveness of the proposed technique is demonstrated by the case of food industry of Ukraine.


Corydalis claviculata (L.) DC., commonly known as a summer-annual, can also appear as a facultative winter-annual, especially in mild winters.


Investigated have been cultural-morphological, biochemical and genetic properties of lyophilized cultures of F. tularensis 15 NIIEG vaccine strain, accumulated within 60-years term and deposited at the State Collection of Pathogenic Microorganisms of Scientific Center on Expertise of Medical Application Products. The studies undertaken have demonstrated that storing of the strains in such a form at low temperatures, does not prevent changes of their genetic and phenotypic properties to the full extent. It is established that F. tularensis 15 NIIEG strain lyophilized in 1953, 1966, 1969, 2003 and 2012 maintains its immunogenic properties when cultivated on nutrient media Ft-agar with or without addition of blood, based on dissociation rates (87-99 %) of SR-colonies. While F. tularensis 15 NIIEG strain 1990 contains specified amounts (not less than 80 %) of immunogenic colonies if cultivated on nutrient media with the addition of blood, and fails to meet the requirements - if cultivated without. Identified in F. tularensis 15 NIIEG strain 1987 SR-colony decrement of 70-75 % in case of cultivation with or without addition of blood testifies to the deterioration of its immunogenic properties. RAPD and ERIC typing has showed high stability of the genome of F. tularensis 15 NIIEG cultures lyophilized at different times. Tularemia microbe vaccine strain has unique RAPD and ERIC profiles, insignificant alteration of which is observed upon storage of pathogen subculture in the dried from.


Our object in this paper is to study the temperature variations in the Antarctic Peninsula using multiple regression models with correlated errors admitting ARMA models with nonGaussian innovations. We found that the fitted models adequately describe the variations. The data we consider are minimum/maximum monthly temperatures recorded at the Faraday station by the British Antarctic Survey for the period from January 1951 to December 1995. The time series models considered here are novel in the sense that the linear ARMA models have innovations which have extreme value distributions, and the maximum likelihood estimation described here can be widely used in many disciplines. The time series models we fitted indicate that the mean of the minimum temperatures is likely to increase over the next 50 years and the temperatures will be above 0C during the summer months which means that the melting season will increase, creating more climatic and ecological problems. Although the mean temperature is reported to have increased by 2.5C we believe that the maximum temperatures have remained unchanged over the past 45 years. This has led to a decrease in the diurnal temperature range which has also been observed in many other parts of the globe. The influence of human activity on climate is still unknown but our ability to perturb the ozone layer is an established fact. We established a relationship between minimum monthly temperatures and ozone levels and found they are highly negatively correlated (at a lag of one month) implying that the higher levels of ozone in the air keep temperatures low. This resulted in a new time series model relating the minimum temperatures to ozone levels. After appropriate statistical tests, we have come to the conclusion that the observed increase in the minimum temperatures is a consequence of human activity rather than natural causes and so a reduction in the production of "greenhouse gases" could lead to a decrease in minimum temperatures, thereby reducing the adverse effect of global warming in the Antarctic Peninsula.


The purpose of this study was to recognize the effect of the proposed exercises in developing the particular motor abilities employed in the study as well as some ground skills in men's artistic gymnastics. This study used the experimental method and included 14 players of the directorate of Anbar Education team in the technical gymnastics for men (junior category), aged 10-12 years. The proposed exercises were then performed, which included 30 training units over a ten-week period, three training units each week, and forty minutes of training per unit. The researchers used the Statistical Package for the Social Sciences (SPSS) for data analysis. The results of our study showed that there were statistically significant differences in the results of the pre- and post-tests in all variables of the elements of special motor abilities and ground skills of the research sample, in favor of the post-test (p < 0.05). The use of the proposed exercises had a positive effect in developing some special motor skills, and the development of special motor abilities contributed to the development of ground skills in the artistic gymnastics for men.


eously examining Chicana-produced literature. Through them, Cuevas is ultimately successful in proving her point that it is gender and gender presentation more than sexuality that affects the queer Chicanx figure; her third section is especially powerful in this regard, as she discusses the ways in which gender variant Chicanx people may be forced to give up pieces of their cultural identity to embrace their queer identity fully. Post-Borderlandia is a valuable book for scholars in the fields of Hispanic and Chicanx cultures and those who study gender and queer theory; this work combines all in a way that is both insightful and fascinating for the reader, though it may prove too dense for the 'layman'. Cuevas takes Anzald ua's work and expands upon it beautifully, bringing her ground-breaking work of the 1980s into a more contemporary context that will be of interest to many scholars.


This work assesses the validity of applying the Taylor Rule to the Brazilian market. Several variables, tools and features were analyzed. Among its variables, inflation, inflation target and output gap were included to determine a basis scenario. On top of that, exchange rates and exchange rate related information was tested. Both the crude market input (spot rate) and a trade-weighted currency are included in this analysis. Also extracted from the market, the carry-trade premium was calculated from future exchange rate quotes. Among its tools, the smoothing factor was evaluated. The series were tested for regime breaks, unit root and cointegration, residual autocorrelation, normality, heteroskedasticity and coefficient linearity. Among its features, special attention was paid to the proper timing of each variable. The regressions being forward looking, it was important to line up the actual information available for the Brazilian Central Bank at the time of each decision. Timing was again a factor when considering different cutoff periods, and for synchronizing market data, especially for constructing the carry-trade payoff. This work concludes that evidence of a Taylor Rule being a response function for the Brazilian Central Bank is shaky, especially given the number of misspecification indicators found. Results also suggest that, assuming there is a need to protect the local economy from sharp capital flows consequent of interest rate changes, the implicit future exchange rate premia is not a good indicator of such risk.


The real-time preventive control is particularly critical because the integration of renewable energy aggravates the random fluctuation of large power grid operating state. An online preventive control optimization method for static voltage stability is proposed based on the Thevenin equivalent parameter identification. According to the definition of the stability margin, its quantitative relationship with the control variable is derived to meet the real-time and reliability requirements of online applications. The preventive control optimization model is constructed to minimize control cost and consider voltage stability margin and operation constraints under multiple critical contingencies. The generator terminal voltage and shunt capacitor in this paper are taken as continuous and discrete control variables respectively. The derived analytical relationship between stability margin and control variable is linearized to form linear security constraints, and the optimization model is transformed into a mixed-integer linear programming problem, which can be solved by CPLEX quickly and reliably. The accuracy and rapidity of the proposed method are verified on several test systems.


The Fetish and the Favela: Notes on Tourism and the Commodification of Place in Rio de Janeiro, Brazil Austin Zeiderman Cultural and Social Anthropology, Stanford University DRAFT: 27 March 2006 The Right to the City and the Politics of Space (April 14-15, 2006) The tour starts at my hotel. At 9 a.m. sharp, the guide (who I'll call Fernando) meets me in the lobby and escorts me to an air-conditioned, white minivan. I am introduced, in English, to the driver, though he speaks only Portuguese. Fernando takes his place in the front passenger seat, from where he controls the ambient climate, the door locks, the windows, and the sound system that broadcasts his voice, through a microphone, to speakers located about the van. Since I am the first to be picked up, the driver makes his way through the world-famous, beachfront neighborhoods of Copacabana and Ipanema to the hotels of the rest of our group. A young German businessman temporarily stationed at the DaimlerChrysler office in Sao Paulo, a middle- aged French-Canadian couple on Brazilian holiday, a Scottish backpacker traveling throughout South America, and an American couple from California with digital video cameras in hand join a not-quite-yet Stanford anthropology student, wandering around the cities of Brazil after attending a conference on Latin American urbanization and the environment. Once the seven of us are comfortably seated in the van, the guided tour can begin. Fernando tells us that, today, our tour will include visits to two of Rio de Janeiro's almost 600 favelas—Vila Canoas, a small, relatively recent settlement occupying an island of once- forested state-owned land, and Rocinha, known to many as the largest slum in all of South America with an estimated 200,000 residents living on steeply-pitched hillsides less than a mile from the beach. Fernando repeats claims made by his company's brochure and website, which


Two surveys of indoor exposure to natural radiation in the UK have been carried out, a representative national survey and a selective survey of regions where above average radon concentrations were expected. Doses from both gamma rays and radon daughters were determined. Complementary studies were also made of the doses received outdoors. The focus here however is on indoor exposure to radon daughters.


This work analyzes the unidimensional, utilitarian and productive outline which identifies the variable ?certification? in contrast with the humanistic objective of the quality of education. The analysis compares the reach of institutionally outlined objectives of ?educational quality? in relation to the acquisition of the ISO 9000 Standard certification as an institutional tool for positioning in higher education. The motive of the study becomes evident upon asserting the achievement of university positioning through directed procedures that are possibly limiting and productive with economic-utilitarian nuances as a result of the mercantilist concept of a constructivist-positivist education. A qualitative and documental type search was used which was directed toward interpreting the situation of the parameters and the result of the field study with the objective of determining the perception of the effectiveness of the ISO 9000 Standard certification in the educational institution. This was done after marking an analysis of the reality if labor in the State of Queretaro. In this research the unit of analysis was university students from two certified Queretaro institutions, the Universidad Autonoma de Queretaro (Autonomous University of Queretaro) and the Tecnologico de Queretaro (Queretaro Technological University) with a sample size of 318 students. The research instrument consisted of a questionnaire with 35 structured questions. The paper concludes with the idea of promoting better articulation between the offer educational institutions and the requirements of the productive sector using proposals to relate to this sector and permanent dialogue. We suggest achieving a more effective institutional positioning through the inclusion of the teacher in the ?humanistic? concept education.


The extraction of multiple features from high-resolution ultrasound images of atherosclerotic carotid plaques, characterizing the plaque morphology and structure can be used for the classification and retrieval of similar plaques and the identification of individuals with asymptomatic carotid stenosis at risk of stroke. The objective of this work was to de- velop an automated image retrieval and classification system for the retrieval of similar carotid plaque ultrasound images, which will assist the physician in making his diagnostic decision based on similar previous cases. The neural self- organizing map (SOM) and the statistical K-nearest neighbor (KNN) classifiers were used for the retrieval and the classi- fication of the carotid plaques into symptomatic or asymptomatic. Twenty different feature sets including texture, shape, morphological, histogram and correlogram features were extracted from the carotid plaque images and the classification results were further combined in order to improve the success rate. The results on a dataset of 274 carotid plaque ultra- sound images show that image retrieval and classification for carotid plaque image are feasible and that features like multi-region histogram or texture can be used successfully for the identification of cases with similar symptoms output.


Bai Wei has experienced nearly 60 years' writing career since the 1920s.But compared with Ding Ling,the studies on Bai Wei's works are not abundant.Since the new period,comments on Bai's works have increased.In order to invite researchers' attention,this paper tries to divide these research achievements into three parts: holistic study,monographic study and comparative study.In the end,the paper intends to comment on her achievements.


Chinese word segmentation is an initial and important step in Chinese language processing. Recent advances in machine learning techniques have boosted the performance of Chinese word segmentation systems, yet the identification of out-of-vocabulary words is still a major problem in this field of study. Recent research has attempted to address this problem by exploiting characteristics of frequent substrings in unlabeled data. We propose a simple yet effective approach for extracting a specific type of frequent substrings, called maximized substrings, which provide good estimations of unknown word boundaries. In the task of Chinese word segmentation, we use these substrings which are extracted from large scale unlabeled data to improve the segmentation accuracy. The effectiveness of this approach is demonstrated through experiments using various data sets from different domains. In the task of unknown word extraction, we apply post-processing techniques that effectively reduce the noise in the extracted substrings. We demonstrate the effectiveness and efficiency of our approach by comparing the results with a widely applied Chinese word recognition method in a previous study.


s of Invited Addresses Friday The Marshall Differential Analyzer Project: Solutions of Dynamic Equations Using Mechanical Integration Bonita Lawrence Marshall University Abstract: Marshall University currently houses the largest publicly accessible differential analyzer in the USA. The machine (fondly known as Art in honor of Dr. Arthur Porter, the first to build a differential analyzer in England) solves up to fourth order differential equations using mechanical integration, a physical process that was first effectively implemented in the late 1920's by Dr. Vannevar Bush at MIT. The Marshall Differential Analyzer Team is a collection of undergraduate and graduate students who have worked together in the construction, maintenance and continuing development of this machine and two smaller more portable twointegrator machines. These machines are currently being used i) as teaching tools, offering a physical interpretation of how the derivatives of a function can be used to determine the structure of the function itself, and ii) as a research tool to study qualitative properties of nonlinear equations (without closed form solutions) as well as to investigate topics in dynamic equations on time scales. Students of differential equations and calculus are given the opportunity, as part of their courses, to program the machine, run it and study the behavior of solutions. The perspective the machine offers bright mathematical minds lends credence to the idea that physical models can and do spark the imagination. In this presentation we will give an overview of the history of the machine and the Marshall DA Project, discuss the mechanics that the machine (and the operator) uses to model mathematics, and discuss future plans for the Marshall DA Project. For the big finale you will see a live feed from the Marshall Differential Analyzer Lab (just across campus from the site of this talk) where my graduate students, Ms. Alex Amorim and Mr. Chad Lott, will demonstrate how to use the machine to solve dynamic equations. Anyone who is interested in visiting DA Lab during their visit to the Marshall University campus is welcome! Marshall University currently houses the largest publicly accessible differential analyzer in the USA. The machine (fondly known as Art in honor of Dr. Arthur Porter, the first to build a differential analyzer in England) solves up to fourth order differential equations using mechanical integration, a physical process that was first effectively implemented in the late 1920's by Dr. Vannevar Bush at MIT. The Marshall Differential Analyzer Team is a collection of undergraduate and graduate students who have worked together in the construction, maintenance and continuing development of this machine and two smaller more portable twointegrator machines. These machines are currently being used i) as teaching tools, offering a physical interpretation of how the derivatives of a function can be used to determine the structure of the function itself, and ii) as a research tool to study qualitative properties of nonlinear equations (without closed form solutions) as well as to investigate topics in dynamic equations on time scales. Students of differential equations and calculus are given the opportunity, as part of their courses, to program the machine, run it and study the behavior of solutions. The perspective the machine offers bright mathematical minds lends credence to the idea that physical models can and do spark the imagination. In this presentation we will give an overview of the history of the machine and the Marshall DA Project, discuss the mechanics that the machine (and the operator) uses to model mathematics, and discuss future plans for the Marshall DA Project. For the big finale you will see a live feed from the Marshall Differential Analyzer Lab (just across campus from the site of this talk) where my graduate students, Ms. Alex Amorim and Mr. Chad Lott, will demonstrate how to use the machine to solve dynamic equations. Anyone who is interested in visiting DA Lab during their visit to the Marshall University campus is welcome! The Many Facets of Polyhedra Carl Lee University of Kentucky Abstract: The area of polyhedral geometry has simply exploded over the last 50 years. I will offer some samplings of topics in polyhedral geometry that lend themselves to potential early encounters and exploration by students. I will draw from such examples as: counting faces beyond Euler's relation, symmetry, using new construction and visualization tools, dealing with linear inequalities instead of linear equations, and peering into the fourth dimension. The area of polyhedral geometry has simply exploded over the last 50 years. I will offer some samplings of topics in polyhedral geometry that lend themselves to potential early encounters and exploration by students. I will draw from such examples as: counting faces beyond Euler's relation, symmetry, using new construction and visualization tools, dealing with linear inequalities instead of linear equations, and peering into the fourth dimension. Math and Art: The Good, the Bad, and the Pretty Annalisa Crannell Franklin & Marshall University Abstract: How do we fit a three-dimensional world onto a two-dimensional canvas? Answering this question will change the way you look at the world, literally: we'll learn where to stand as we view a painting so it pops off that two-dimensional canvas seemingly out into our three-dimensional space. In this talk, we'll explore the mathematics behind perspective paintings, which starts with simple rules and will lead us into really lovely, really tricky puzzles. Why do artists use vanishing points? What's the difference between 1-point and 3point perspective? Why don't your vacation pictures look as good as the mountains you photographed? Dust off those old similar triangles, and get ready to put them to new use in looking at art! How do we fit a three-dimensional world onto a two-dimensional canvas? Answering this question will change the way you look at the world, literally: we'll learn where to stand as we view a painting so it pops off that two-dimensional canvas seemingly out into our three-dimensional space. In this talk, we'll explore the mathematics behind perspective paintings, which starts with simple rules and will lead us into really lovely, really tricky puzzles. Why do artists use vanishing points? What's the difference between 1-point and 3point perspective? Why don't your vacation pictures look as good as the mountains you photographed? Dust off those old similar triangles, and get ready to put them to new use in looking at art!


To determine the activity of the catalysts on a quantitative basis, a kinetic model was developed. In the following, this model is presented in detail. Figure S1 shows the time-dependency for the reaction of phen ol over a Ni-V2O5/SiO2 catalyst at 250C and 100 bar. In the initial part of the experiment phenol con verts to primarily cyclohexanol, which reached a maximum in the yield at approximately 3 .5 h of reaction. The cyclohexane yield, on the other hand, increased continuously throughou t the experiment, and with an increasing rate toward the end. To whom correspondence should be addressed †Technical University of Denmark ‡Karlsruhe Institute of Technology


While writing of contemporary issues Mahesh Dattani constructs a sense of a shared urban cultural identity, which is upper-middle class, professional, English speaking and a cityfied identity. Memory plays a very important part in the plays. Public memory is time and again juxtaposed with personal memory, and it becomes a means to explain and justify the political acts committed for personal interests. This paper looks at how memory, personal as well public, shapes the identities (social, personal and religious) of characters in Mahesh Dattanis Final Solutions. Incidents are important, but only to explain why and how the people populate his plays, acting in ways that they do. The psychological action is of greater relevance than any physical action that takes place in the play. He reveals his characters by placing them in situations where they are forced to analyze themselves in the light of what happened in their lives in the past.


Anger is an emotion characterized by tension and hostility arising from frustration, real or imagined injury by another, or perceived injustice (American Psychological Association). Nomophob¬ia is used to describe a psychological condition when people have a fear of being detached from mobile phone connectivity (Sudip Bhattacharya, Md Abu Bashar., 2019). Coronaviruses (CoV) are a large family of viruses that cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). A novel coronavirus (nCoV) is a new strain that has not been previously identified in humans (World Health Organisation,2020). As a result of this uncertain situation the dependency of mobile phones has increased drastically. The study aimed to find the relationship between Nomophobia and Anger among undergraduate during COVID-19 pandemic and was conducted during the covid-19 confinement period. The sample considered included a total of 120 undergraduate students within the age group 18-22 years and 60 males and 60 females were selected using purposive sampling technique. Nomophobia questionnaire (Yildirim C and Coereia A, 2015) and Novaco Anger Scale (Raymond W Novaco, 1994) was used for data collection. The data was analysed using independent sample t-test, mean, standard deviation and Pearson product moment correlation. From the results it was clear that there is no significant difference in the level of Nomophobia and Anger among undergraduates during CoVid-19 pandemic based on gender and that there is a significant correlation between nomophobia and anger among undergraduates during CoVid-19 pandemic.


The Roman fortress of Noviodunum on the lower Danube guarded the border of both the Roman and the Byzantine empire against barbaricum – the lands of the so-called barbarians – to the north and east. In a new collaborative project, Romanian archaeologists and colleagues from the Institute of Archaeology and the universities of Cambridge and Southampton are beginning to investigate both the site and its relationship with its hinterland and the wider imperial frontier zone.


The present study is an attempt to assess the Level of Self-Regulated Learning Strategies among Bachelor Science Degree Students with Different Combination of Subjects who affiliated to University of Mysore. Convenience sampling technique was used to select the Colleges in Mysore city. Proportion random sampling technique was used to draw final year from different types of colleges giving representation to their Gender and Different Combination of Subjects. Totally 254 Students were selected according to the table of Krejcie and Morgan. The Motivational Strategies for Learning Questionnaire (MSLQ) was employed to assess the Level of SRLS in total and component wise. Descriptive statistics have been employed to analyze the data descriptively. The findings indicated majority of Students have exhibited average Level of SRLS in total and in all its Scales.


The wide application of P2P file-sharing makes a lot of problems,such as network performance,security,and Intellectual Property,etc.An example is provided to illustrate how to construct an administrable,controllable,and business P2P network.


Armenians used terror as an effective tool in their struggle for independence against the Ottoman Empire. It is possible to examine the terrorist activities of Armenians against the Ottoman Empire and later the Republic of Turkiye in three stages. First, the Ottoman Bank raid in Istanbul (August 26, 1896) and an assassination attempt against Sultan Abdülhamit II (July 21, 1905) the second is the Nemesis operations they organized to take revenge on the leaders of the Union and Progress Party, which took the deportation decision in 1915 after the Armistice of Mudros. The third stage is the attacks they launched against Turkish diplomats in different countries of the world in the 1970s.
In this article, the first attack of Armenian terrorist organizations against Turks in Italy is examined. This is the murder of Sait Halim Pasha, (6 December 1921) the grand vizier of the Ottoman Government, who took the deportation decision.


University library is an important part of university.And the function of university library is to provide academic information for the teaching and scientific research.In the light of how to do well SDI service and give full play to the function of library,this paper puts forward some concrete methods and some matters needing attention.


This paper presents the electrical design of high-speed two-pole induction motors with a solid rotor cage design covering a power range of 2 to 15 MW with rotational speeds of up to 20,000 RPM. The electrical design and the underlying construction are explained, focusing on the rotor and on effects in high-speed motors related to the high basic supply frequency. Most modern calculation tools and procedures such as two-dimensional finite difference time-stepping calculations are used to predict the operational behaviour of the motor and to optimise the design. Based on these detailed simulations, simplified motor models are developed for the evaluation of design modifications as well as for daily design purposes. Finally, the calculation results are compared with test field measurements of a pilot unit with a power of 10 MW and a rotational speed of 12000 RPM. During an extensive testing period of 8 months the drive system was tested in the authors' test field under various conditions. Tests were made up to full speed and almost full load. The measured results show excellent correlation with both analytical and numerical simulations. The drive system has worked very satisfactory and the drive system as well as its components, high-speed motor and converter, have been validated.


Since the pioneering works by Nomikos and MacGregor, the Batch Multivariate Statistical Process Control (BMSPC) methodology has been extensively revised, and a sheer number of alternative monitoring approaches have been suggested. The different approaches vary in the batch data alignment, the pre‐processing approach, the data arrangement, and/or the type of model used, from two‐way to three‐way and from linear to nonlinear. One of the most accepted pre‐processing schemes, referred to as the trajectory centering and scaling (TCS), is based on the normalization to zero mean and unit variance around the average trajectory. However, the main drawback of TCS is the inherent increase of the level of uncertainty in the estimation of model parameters. In this work, we illustrate how to improve parameter estimation while maintaining the good properties of this pre‐processing approach. This enhancement is achieved with the new pre‐processing approach we call PARAMO, which uses more observations than TCS to estimate the pre‐processing parameters. We show that this improvement favorably impacts the performance of the monitoring system. The results of this research work affect a large amount of the monitoring approaches proposed to date, and we advocate that the pre‐processing procedure proposed here should be generally applied in BMSPC.


Abstract The Western Ledge Reef Wreck, discovered and excavated in Bermuda, is an example of Iberian shipbuilding that is still little recognized within a broader Atlantic context. In order to better understand this technological model, the hull remains were revisited and studied during the summers of 2007 and 2008. By combining this new data with that from the original publications and previously unavailable material, this paper outlines details of the construction of a small Spanish vessel that sunk on its way from the New World some time at the turn of the 16th and 17th centuries.


A bone regeneration membrane and a method for manufacturing the same are provided, which improve adhesion ability of the osteoblast. A bone regeneration membrane comprises: an outer layer of the porosity membrane form including the amphiphilic polymer having hydrophilic and hydrophobic radicals and medical treatment biodegradable polymer; and an inner layer which is formed on the outer layer of the porosity membrane form and has the fiber spinning type of mesh shape consisting of the mixture of the calcium phosphate and medical treatment biodegradable polymer. The medical treatment biodegradable polymer is copolymerization derivative selected from poly(lactic acid), poly(-L-lactic acid), poly(-DL-lactic acid), copoly(lactide-mandelate), poly(glycolic acid), poly(beta-hydroxybutyrate), poly(eta-caprolactone), poly(epsilon-caprolactone), poly(dioxanone-epsilon-caprolactone), poly(lactic-co-glycolic acid), poly(lactide-co-glycolide)-epsilon-carprolactone, poly(trimethylene carbonate), and poly(orthoesters).


The RAMpage memory hierarchy is an alternative to the traditional division between cache and main memory: main memory is moved up a level and DRAM is used as a paging device. Earlier RAMpage work has shown that the RAMpage model scales up better with the growing CPU-DRAM speed gap, especially when context switches are taken on misses. This paper investigates the effect of more aggressive first-level (L1) cache and translation lookaside buffer (TLB) implementations, with other parameters kept the same as in previous work, to illustrate that a more aggressive design improves the competitiveness of RAMpage. The more aggressive L1 shows an increase in the advantage or RAMpage with context switches on misses, supporting the hypotheses that a more aggressive L1 favours RAMpage. However, results without context switches on misses are less conclusive. A larger TLB, as predicted, makes RAMpage viable over a wider range of page sizes.


The Lombok Strait separates the Indonesian islands Bali and Lombok and is the second most important strait through which water is exchanged between the Pacific Ocean and the Indian Ocean. The south end of the Lombok Strait is split by a small island and on each side of the island are rugged sills with an average depth of about 200 m. On the sill, tidal current speeds up to ±3.5 m/s are encountered. Variable southward flow of warm Pacific waters through the strait into the Indian Ocean forms a well-developed thermal plume south of the sill. The position of the front associated with this plume has been identified on several ERS SAR images. Its extent and shape are determined by the water transport through the strait and characteristics of the South Java Current which in turn depend both on the annual cycle of the monsoon winds and prolonged disturbances in wind field. Another oceanic phenomenon that has been detected on ERS SAR images is the internal solitary waves that are tidally generated at the sill and propagate in both directions. The waves propagating northward into the Java Sea have always a quite regular circular shape while the ones propagating southward into the Indian Ocean have a very irregular shape. Physical explanation for this behavior is presented. We attribute this mainly to the strongly horizontally varying current field south of the sill. Since the sea surface manifestations of the internal waves vary very strongly with time, we hypothesize that the internal wave characteristics south of the Lombok Strait depend on the stratification of the water body and the strength of the water flow through the strait. Thus, we suggest that ERS SAR imagery showing internal waves south of the strait may also be used for obtaining information on the throug-strait flow variations.


The endless number of capabilities and options that reconfigurable radars can provide is a huge challenge for optimal sensor control (e.g. waveform selection, beam-direction control, subdivision of antenna elements). Usually, radar optimization is driven by technical characteristics (e.g. detection probability, estimation error, task qualities), but these metrics are only indirectly related to objectives that are relevant for end-users: actual mission success. In this paper we translate the relevant operational parameter to technical parameters. In other words, a metric is developed to assess optimality of (offline/online) design and control decisions from a mission point of view. Two example cases are investigated in this paper: firstly, the optimal radar integration time has to be selected; and secondly, a radar antenna array has to be reconfigured for surveillance and communication purposes. The proposed metric allows to optimally reconfigure, select the radar settings and make the best design trade-offs in such a way that the expected mission success - the actual objective of the end-user - is maximized.


Objective: To examine the effect of human recombinant leukemia inhibitory factor in different doses on rate of fertilization of mouse ova. Design: Prospective study. Setting: Department of Anatomy, laboratory of cell culture. Animals: Female NMRI mice 6 to 8 weeks old. Interventions: Mice were killed at 12-14 hours after hCG or 36-38 hours after hMG injection. Mature oocytes were obtained and divided randomly into 5 groups. Oocytes in group A (n=157) were cultured as the control group in TYH medium. Oocytes in groups B, C, D, E (n=137, 154, 166 and 159, respectively) were cultured in the same medium supplemented with recombinant human leukemia inhibitory factor in four different concentrations (5, 7.5, 10, 20ng/ml, respectively) for 1 hour. After that time 100000 spermatozoa were added to every drop and after 24-26 hours two cell embryos were recorded. Fertilization was assessed by recording the number of 2-cell embryos and analysed by X 2 tests. Main outcome measurment: Two cell embryos. Results and Conclusion: No significant difference was detected in the rate of two cell embryos in the studied experimental groups as compared with the rate of two cell embryos in control group (Group A). This study showed that, different concentrations of recombinant human of leukemia inhibitory factor in standard medium does not enhance in vitro fertilization rate of mouse oocytes.


Laminar-turbulent transition caused by modal disturbance growth in the wake flow of isolated roughness elements on blunt re-entry capsules is studied numerically at typical cold hypersonic wind-tunnel conditions. Two fundamentally different heat shield shapes are considered. On the sphere-cone forebody the wake flow of the roughness is exposed to an adverse pressure gradient, whereas the spherical heat shield exhibits a strongly favorable pressure gradient. The pressure gradient effects on the development of the stationary wake flow and its modal instability characteristics are discussed for various heights and diameters of the cylindrical roughness element. Regions of increased shear develop in its wake, which persist longer in the adverse pressure gradient case. Consequently, the results of spatial two-dimensional eigenvalue analyses reveal that the unstable wake-flow region extends much further downstream and the wake-mode instabilities are considerably more amplified. The disturbance kinetic energy production terms are used to assess the contributions of the different shear-layer regions to the mode growth and its dependence on the pressure gradient.


Metamaterials can exhibit electromagnetic characteristics beyond those found in nature. In this letter, we demonstrate that Surface Whispering-gallery mode (SWGM) can be generated by coating a microresonator with a layer of metamaterials. Different from WGM, whose waves are mostly confined within the microresonator, the SWGM propagate at the interface between the ambient substance and the metamaterials, rendering the microresonator much more sensitive to a slight change in surrounding medium. Such unusual characteristics, well explained by the guided wave theory and validated by full wave simulation, may lead to novel applications in optics.


Objective To clone the 5′-untranslated region of human GLUT-9 gene and to explore the information of its promoter and transcriptional regulatory region by bioinformation. Methods The complete sequence of the human GLUT-9 gene was collected through searching online database. The 5′-untranslated region of GLUT-9gene were cloned by PCR method. The sequences were analyzed by BDGP: Neural Network Promoter Prediction and TFSEARCH to predict potential promoter region and transcriptional factors binding sites, respectively. Results The promoter of human GLUT-9 gene may be located in-550 to-503 regions in the antisense strand, in which there were 12 transcriptional factors blinding sites, including CdxA, SRY, Lyf-1, etc. Conclusions 5′-untranslated region of human GLUT-9 gene was cloned, which may offer the basis for the study on transcriptional regulation mechanism of human GLUT-9 gene.


Objective
To explore the feasibility and evaluate the teaching effect of case-based multidisciplinary team teaching mode in clinical practice teaching of gynecology.

Method
According to different grade, 120 students were divided into experimental group and control group (60 students per group). The teaching content contained three malignant tumor cases, which were cervical cancer, endometrial cancer and ovarian cancer. The course needed 12 periods totally. The experimental group received multidisci-plinary team (MDT) teaching mode, and the control group received traditional lecture-based learning teaching mode (LBL). Teaching effect evaluation and test scores would be analyzed at the end of teaching. SPSS19.0 was used for t test and chi-square test.

Results
Our results showed that the theory test scores, practical skills test scores, the paperwork scores and the total scores of the students in MDT group were significantly higher than those in the traditional group (P<0.05). At the same time, the students' self-evaluation scores in the ability of information retrieval, acquisition, understanding, comprehensive and the ability of self-learning, learning interest, enthusiasm and teamwork were significantly higher than the traditional group (P<0.05).

Conclusion
MDT teaching mode is feasible, which can improve teaching effect and students' quality, and is worthy of advocating and popularization.

Key words:
Gynecology; Multidisciplinary team; Case-based learning; Clinical internship teaching


Hardware masking is a side-channel countermeasure technique that randomizes the internal values of a digital circuit. Masking requires the use of random signals, called masks, which need to remain a secret within the circuit implementation. In currently known masking techniques, the circuit power consumption and the mask value are correlated. Using this correlation in a so-called higherorder attack, an attacker may be able to remove the effect of the mask value, and subsequently break the masking scheme. In this paper, we present a technique to reduce the correlation and to mitigate attacks on masking. The strong point of our approach is its simplicity. Small, functionalitypreserving modifications to the netlist of a circuit are sufficient to make the attack fail. We demonstrate our technique on bit-level masked digital logic, and show how it can be extended to more complex cases.


Measuring infiltration within a landscape is important because it is one of the key processes controlling water budgets for the agricultural production and transport processes in the soil profile. Estimation of this process at an acceptable level of accuracy is important, especially in the case when it exhibits high variability, since its measurement is a time- and labor-consuming procedure. This study was conducted to evaluate and compare kriging and cokriging to estimate infiltration rate (IR) using limited available data on an 8.5-ha alluvial field (loamy mixed mesic Ustifluvent). Infiltration tests were conducted using double-ring infiltrometers until steady-state IRs were obtained at nodes of an irregular grid consisting of 24 columns and four rows. Values of field-measured IR ranged from 1.92 to 8.88 cm h -1 , with a mean of 5.11 cm h -1 . Bulk density of subsoil was significantly related to IR and, therefore, helped estimation of IR values at unobserved locations. Both kriging and cokriging adequately estimated IR when 50 observed IR values were used with both estimators (mean reduced error was 4.15 × 10 -3 for kriging and 4.10 × 10 -3 for cokriging). To determine the minimum number of observed IR values needed to estimate IR without losing significant spatial information, kriging and cokriging were repeated with 45, 40, 35, and 30 observed IR values. Forty-five measured IR values with kriging, and 40 values with cokriging were adequate to estimate IR. Therefore, cokriging was found superior to kriging in estimating IR in the case of limited available data.


The rapid development of our country's industrialization and urbanization brings severe challenges to current rural land system, which should be reformed on the base of stability. By the cost-benefit analysis of defining land property right the article puts forward some proper suggestions.


In the given operation the experimental procedure of measuring of indicatrixes of coefficient of brightness and scattering matrix of surfaces of various materials is featured at their irradiation by pulsing laser radiation in the plan with combined by a radiant and receiver of radiation. The experimental results received on a wavelength 532 nm at intensity approximately 104W/cm2 at a pulse length approximately 10 ns for a dairy glass MC-20 and corrosion- proof steels H18N10T with root-mean-square deviations of height of a lateral view of a roughness of explored surfaces Rz, laying in a gamut 0.025-2.5 mkm ($DEL6-14 classes of processing of a surface) are given. The discussion of the received results is carrying out.


Polarized structure functions and high energy spin physics, J. Soffer SUSY phenomenology, Y. Okada hadronic charmless B decays and nonfactorizable effects, H.-Y. Cheng sensitivity of Hm factor models, D.S. Hwang and D.-W. Kim CP violation in B decays and strategies for extracting CKM phases, R. Fleischer alternative CP violation, D. Bowser-Chao et al QCD resummation in single and double gauge Boson productions at hadron colliders, C.-P. Yuan SUSY particle mass spectra and phenomenology in the minimal supergravity model, V. Barger and C. Kao penguin contributions in the lifetime difference between Bs and Bd, and a possible new physics, Y.-Y. Keum symmetry breaking effects in heavy mesons, C.-Y. Cheung et al. (Part contents)


Driven by the increasing demand for large-scale and high-performance data protection, disk-based de-duplication storage has become a new research focus of the storage industry and research community where several new schemes have emerged recently. So far these systems are mainly inline de-duplication approaches, which are centralized and do not lend themselves easily to be extended to handle global de-duplication in a distributed environment. We present DEBAR, a de-duplication storage system designed to improve capacity, performance and scalability for de-duplication backup/archiving. DEBAR performs post-processing de-duplication, where backup streams are de-duplicated and cached on server-disks through an in-memory preliminary filter in phase I, and then completely de-duplicated in-batch in phase II. By decentralizing fingerprint lookup and update, DEBAR supports a cluster of servers to perform de-duplication backup in parallel, and is shown to scale linearly in both write throughput and physical capacity, achieving an aggregate throughput of 1.7GB/s and supporting a physical capacity of 2PB with 16 backup servers.


A news item about Dr. Quill's talk before the ACS section on the history of chemistry notes that many samples of nineteenth century wallpaper in America contained Paris green (acetoarsenite of copper) or Scheele's green (arsenite of copper). In 1874, the Michigan State Board of Health began testing wallpaper and eventually, through the efforts of R. C. Kedzie, M.D., the sale of wallpaper containing these pigments was prohibited. Only one death was traced to wallpaper, but symptoms of chronic arsenic poisoning had been noted. -- AATA


The following is an evaluation of the Systemic Practice Team, launched in March 2007, in order to meet the needs of families and staff members involved in adult mental health services in Shropshire.


Sacro-iliac joint arthritis was a cause of sciatica at the turn of the last century (1); however the piriformis muscle, which spans the joint, became synonymous with sciatica evoked by passive internal rotation, hip flexion and abduction maneuvers.  Piriformis syndrome was ascribed to contact of the muscle with upper sacral nerves and the sciatic trunk as they transited the IF (2).  Sectioning a tight iliotibial band (3), piriformis myotomy and fascial band releases (4), and physiotherapy have all been advocated as effective modes of therapy. Although over-diagnosed (5), there are subsets of affected patients with anomalous anatomy.


The formal methods community has long known about the need to formally analyze concurrent software, but the operating systems (OS) community has been slow to adopt such methods. The foremost reasons for this are the cultural and knowledge gaps between formalists and OS hackers, fostered by three beliefs: inaccessibility of the tools, the disabling gap between the validated model and actual implementation, and the intractable size of OSs. In this paper, we show these beliefs to be untrue for appropriately structured OSs. We applied formal methods to verify properties of the implementation of the Fluke microkernel's IPC (interprocess communication) subsystem, a major component of the kernel. In particular, we have verified, in many scenarios, certain liveness properties and lack of deadlock, with results that apply to both SMP (scalable multiprocessor) and uniprocessor environments. The SPIN model checker provided an exhaustive concurrency analysis of the IPC subsystem, unattainable through traditional OS testing methods. SPIN is easily accessible to programmers inexperienced with formal methods. We present our results as a starting point for a more comprehensive inclusion of formal methods in practical OS development.


Ministers of the American States. These were efforts to involve labor in the important political and economic activities of the continent. The first meeting at Bogota in 1963 blocked out what was necessary to achieve that goal. The second at Caraballeda, Venezuela, presented a plan of action. The third meeting, scheduled to be held in Washington later this year, hopefully will cap with progress and success a long history of increasingly vigorous political collaboration with the labor movements in Latin America.


In the summer of 1992,I read, among other books about euthanasia, Derek Humphrey's controversialFinal Exit. It is an unapologetic and somewhat bizarrely forthright how-to book on ending one's life. Humphrey, a news reporter, states simply that his goal was to "actually give dying people printed guidance on how to end their lives if their suffering was unbearable!" Just as divorce has increased dramatically among the elderly, so has suicide. Suicidal wishes would be acted upon much more frequently if individuals had the physical capacity, awareness, and access to end their lives. Recent publicity has focused on an American practitioner and author, Dr Jack Kevorkian (The Goodness of a Planned Death), whose invention of a death machine to end the life of an Alzheimer's patient has received considerable support and far less condemnation from the public. "... 'where cure is not possible, care is still needed'... " The medical community has not,


A new type dual-band BPF using a single slotted patch resonator (SPR) is proposed. The slot tilted at 45° is embedded in the center of λ /4 patch resonator for generating the second passband, which is determined by the slot length and width. The effects of the proposed filter structure parameters are studied in detail. With simulation software, a dual-bandpass filter operating at 2.45/5.2 GHz is obtained. As compared with the conventional dual-band BPF with cross-slotted structure, the dual-bandpass BPF could achieve a size reduction of 48%.


Crowdfunding is widely used for journalism, whose primary purpose is to provide information that citizens need. Therefore, this study frames journalism crowdfunding as social entrepreneurship and investigates how the characteristics of narratives and entrepreneurs influence citizens' financial support for journalism crowdfunding. An analysis of journalism crowdfunding campaigns reveals how social change aims, public interest, past and future narratives, entrepreneurs' gender and their affiliation with mainstream news outlets predict funding for journalism crowdfunding projects. The results provide both theoretical and practical implications for the role of narratives in gaining financial resources and the potential of crowdfunded journalism as a tool for social change.


This study aimed to evaluate the use of glycerolized bovine pericardium (GBP) compared to polypropylene mesh (PPM) in repairing of large abdominal wall defects in animal model, and to investigate the role of platelet rich fibrin (PRF) in promoting this repair. Fresh bovine pericardium collected from local abattoir were processed and preserved in 99.5 percent glycerol. PRF matrix was harvested from fresh autologous blood (10 ml) after centrifugation. Full-thickness, mid-ventral abdominal wall defects (6 × 10 cm) were surgically created in 36 healthy goats (9 goats/group) and were repaired with an equal size of GBP, PPM, GBP-PRF, or PPM-PRF. Qualitative and gray scale quantitative ultrasonography were adopted at day 1, 1, 2, 3, 4, 8 and 12 weeks post-implantation. Three goats per group were slaughtered at 4, 8 and 12 weeks post-implantation for further gross, histopathological and tensiometric (tensile strength, load at failure and strain percent) evaluations. Ultrasonography revealed significant (P˂ 0.05) improvement of implant gray scale, low subcutaneous edema and reduction of skin implant distance in PRF-augmented groups. Besides, a substantial improvement of connective tissue covering, implant incorporation, new blood vessels formation, and reduction of the inflammatory cells infiltrations were observed. Tensiometric parameters were improved in GBP-PRF group compared to the other groups. In conclusion, the obtained results not only proved the superiority of GBP over PPM, but also the advantage of PRF-augmented over non-augmented implants in treatment of large abdominal wall defects. Ultrasonographic analysis provided a satisfactory tool to evaluate the healing process of the abdominal wall defects.


Objectives: Objectives of the present study were to detect an asymptomatic left ventricular diastolic dysfunction (ALVDD) in subjects with high cardiovascular risk and to compare the incidence of ALVDD in group with and without arterial hypertension. Methods: A total of 400 subjects with high cardiovascular risk aged from 35 to 64 years and who had no symptoms of heart failure were assessed by NT-pro BNP assay and echocardiography. Patients with LVEF < 50% were excluded. The cut-off point for NT-pro BNP was 125pg/ml. Asymptomatic left ventricular diastolic dysfunction was defined as left ventricular hypertrophy or E/e1 ratio > 13 by echocardiography and as increased N-terminal pro-B-type natriuretic peptide level. Results: The study sample consisted of 188 men (47.0%) and 212 women (53.3%). The mean age of participants was 49.5 ± 11.8 years. Hypertension was diagnosed in 198 participants and 202 were normotensive. The mean N-terminal pro-B-type natriuretic peptide value among patients with hypertension was 346.8 ± 169.4 pg. /ml. Asymptomatic left ventricular diastolic dysfunction was detected in 11% (n = 44) of subjects with high risk for heart failure. The incidences of ALVDD among hypertensive and non-hypertensive patients were 16.2% (n = 32) and 5.9% (n = 12). By multivariable logistic regression analysis variables independently associated to ALVDD were ages, left ventricular mass and NT-pro BNP value. Conclusion: Based on our study finding we recommend screening for asymptomatic left ventricular diastolic dysfunction in patients with hypertension by using NT-pro BNP testing and echocardiography.


Implicit feedback is a key source of information for many recommendation and personalization approaches. However, using it typically requires multiple episodes of interaction and roundtrips to a recommendation engine. This adds latency and neglects the opportunity of immediate personalization for a user while the user is navigating recommendations. We propose a novel strategy to address the above problem in a principled manner. The key insight is that as we observe a user's interactions, it reveals much more information about her desires. We exploit this by inferring the within-session user intent on-the-fly based on navigation interactions, since they offer valuable clues into a user's current state of mind. Using navigation patterns and adapting recommendations in real-time creates an opportunity to provide more accurate recommendations. By prefetching a larger amount of content, this can be carried out entirely in the client (such as a browser) without added latency. We define a new Bayesian model with an efficient inference algorithm. We demonstrate significant improvements with this novel approach on a real-world, large-scale dataset from Netflix on the problem of adapting the recommendations on a user's homepage.


Digital twin is an important technical means to realize railway digital transformation and intelligent upgrade. The railway test base has problems such as the operation status of infrastructure, equipment and other resources being independent of the tests, and lack of unified monitoring and control. Therefore, it is necessary to build a digital twin model and integrate the operating data of the railway test base, establish the digital mapping and interaction between the physical space and information space of the railway collaborative test platform. Based on the platform, it can realize the effective management of test plans, test procedures, test processes and test results, optimize the allocation of test resources, realize the reengineering of the test process, improve the test service capacity of the railway test base. This study can provide technical support for the digital and intelligent transformation of the railway.


Mobile agents in wireless sensor networks provide many advantages in comparison of conventional client/server architecture. Mobile Agents follow code to data approach and thus perform the task of data aggregation at the nodes rather than at the processing element. This approach reduces in-network data transmission, thus improving bandwidth usage and prolonging network lifetime. Use of multiple mobile agents instead of single mobile agent allows the task to get completed in a cooperative manner. In this paper, we present a multi agent solution for data aggregation using source grouping along with tree based ordering. Extensive simulations have proved better results in terms of energy consumed and latency in comparison of other approaches.


This paper reports on an evaluation of competence-based vocational education practice in Scotland, with particular reference to higher level professional awards. Students (n =236) who registered for level 4 and 5 Scottish Vocational Qualifications (SVQs) returned questionnaires providing data on their experience of the programmes, the criterion-based assessment methodology and the quality of learning. It was found that participation in the 'new vocationalism' was highly gender patterned, had little impact on education and training targets and was skewed in favour of particular awards and occupational groups. The criterion-based assessment methodology proved more time-consuming for the students than the staff, with the emphasis on producing paper-based portfolios of evidence. A particular concern emerging from the research was the superficial nature of learning taking place on competence-based vocational education programmes. These findings are discussed in the context of the growth in'outcome-based' approaches to education adopted by policy makers in Scotland. It is argued that the narrow instrumentalist employer-led standards used to underpin education practice are ill-suited to developing a highly skilled professional workforce for the next century.


The formation of supramolecular hydrogels is demonstrated based on ternary complexes between anthracene side-chain functionalized polymers and macrocyclic hosts. Photo-induced reversible dimerization enables switching between supramolecular and covalent hydrogels.


Provides a general view of the current research trends and projects concerning the restoration, conservation and protection of all types of pure metal and metal alloy artefacts (including gold, silver, lead, copper, tin, brass, etc.), with origins mainly in America, Europe and Antarctica. The proceedings of the congress are divided into five general sections: conservation of metals; analysis of metals and their corrosion products; corrosion and degradation studies; archaeological conservation; and electrochemistry, inhibitors and preventive conservation. The metal artefacts cited in the presented case studies include archaeological artefacts (such as vessels and textiles with metal threads); religious objects; outdoor statues; underwater artefacts from shipwrecks; and architectural metals used in historic and industrial sites. Research on the study of new materials to replace toxic substances used for cleaning metals are discussed, as are performance tests on new materials acting as protective coatings for corroded surfaces. The application of analytical methods such as X-ray diffraction (XRD), X-ray fluorescence (XRF), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and Electrochemical Impedance Spectroscopy (EIS) for the characterisation of both the metal and its corrosion products are emphasized; ultrasonic imaging systems are also discussed. Other main subjects include theoretical concerns and concerns related with the practice of conservation, new training courses for metal conservators, molecular biology research for the conservation of metals, and the study of corrosion in extreme temperatures (Antarctica).


The Secure Hash Algorithm SHA-512 is a dedicated cryptographic hash function widely considered for use in data integrity assurance and data origin authentication security services. Reconfigurable hardware devices such as Field Programmable Gate Arrays (FPGAs) offer a flexible and easily upgradeable platform for implementation of cryptographic hash functions. Owing to the iterative structure of SHA-512, even a single transient error at any stage of the hash value computation will result in large number of errors in the final hash value. Hence, detection of errors becomes a key design issue. In this paper, we present a detailed analysis of the propagation of errors to the output in the hardware implementation of SHA-512. Included in this analysis are single, transient as well as permanent faults that may appear at any stage of the hash value computation. We then propose an error detection scheme based on parity codes and hardware redundancy. We report the performance metrics such as area, memory, and throughput for the implementation of SHA-512 with error detection capability on an FPGA of ALTERA. We achieved 100% fault coverage in the case of single faults with an area overhead of 21% and with a reduced throughput of 11.6% with the error detection circuit.


the environment of key persons and the child, not only for understanding the development of the superego, but, as this reviewer sees it, of the ego and the capacity for mastery of instincts, and for understanding some of the sources of defects in these areas in the pessonality. Dr. Johnson played an early and important role in furthering the concept of psychoanalytic psychotherapy, in the development of methods of applying psychoanalytic theory and principles to the treatment of all psychopathologic states including psychoses, as distinct from the use of 'classical' analysis. Her paper A Case of Migraine, of special interest to readers of this journal, is an elegant example of Dr. Johnson's approach to psychoanalytic psychotherapy. One does not have to agree with all aspects of her views expressed here to appreciate the stimulation provided by a clinicain of Dr. Johnson's caliber. In this particular paper, there is a moving quality to Dr. Johnson's account of both the patient and herself in the treatment situation that dramatizes her literary ability and style as well as her unusual skill in clinical exposition. This volume is recommended reading for psychiatrists at all levels of experience engaged in the treatment of both adults and children, for analysts, social workers, clinical psychologists, and others engaged in allied fields of endeavor.


TORTOISE SHELL AND ITS IMITATIONS GEMS & GEMOLOGY SPRING 2006 he term "tortoise shell" generally refers to the carapacial (dorsal shell) and plastron (belly) plates of the hawksbill sea turtle (Eretmochelys imbricata). The use of tortoise shell dates at least to pre-dynastic Egypt (3500–3100 BC), from which period dishes, combs, bracelets, and the like are known ("Animal products...," 2005). Tortoise shell objects were popular with both the ancient Greeks and wealthy citizens of ancient Rome (Bariand and Poirot, 1998). The commercial exploitation of this material in Europe began as early as the 15th century in Spain ("Natural plastics," 2005), and many types of tortoise shell objects have been produced since then. These include furniture inlays, eyeglass frames, decorative boxes, rings, bracelets, and earrings (see, e.g., figure 1). In Japan, tortoise shell crafting, or bekko, has been an important industry since at least the 17th century, most of it centered in Nagasaki (Pedersen, 2004). Bekko objects such as hair ornaments are still being created today from stockpiled material. The vast majority of worked tortoise shell material comes from the shells of two species of sea turtles: the hawksbill and, more rarely, the green turtle (see box A). The shells of these turtles exhibit attractive patterns that normally consist of light to dark brown patches, though a homogeneous "cream"-colored variety called blond tortoise shell also exists. The popularity of tortoise shell during the 18th through early 20th centuries caused these animals to be hunted almost to extinction, leading to a near-worldwide ban on collection in the 1970s, as well as a ban on international trade in tortoise shell products (Spotila, 2004; box B). For the modern gemologist, tortoise shell has become a rather exotic material, for which a thorough gemological study is lacking.


Online games seem to become major contributors to Internet traffic. Therefore a great deal of effort is being devoted to the analysis and modeling of network game traffic. However the results from the previous measurements have not been unified into a single frame work while gaming traffic model is of high importance to network designers. Considering the fact that gaming traffic is generated by the player's interaction during game sessions, we propose to model the player's activities and later use this model to extract the traffic pattern. We will propose a model for the gaming player behavior regarding traffic generation based on hierarchical hidden Markov model. Player activities are inherently highly complicated. In order to deal with the complicated player activities, it is necessary to incorporate a hierarchical structure in representation of activities, in which a player activity is represented by a combination of multiple activity units, or actions. Any action or any combination of actions may occur during a game session. The HHMM hierarchy ends in production states that result in the transmission of update messages to the game server. HHMM Observations are considered to be client packet size and packet interarrival time.


Your editorial on parathyroidectomy (PTX) for patients with renal failure (1) was informative, however the analysis dealing with total parathyroidectomy requires comment. The Authors imply that we have recommended total PTX because "residual parathyroid tissue in the thymus hypertrophies and maintains some residual PTH activity in the circulation". As stated in the introduction to our first paper (2) we embarked on total PTX only because we were dissatisfied with the results of subtotal parathyroidectomy or total parathyroidectomy with transplant. Because of recurrent or persistent hyperparathyroidism it was decided to remove all parathyroid tissue at the initial operation. This decision, taken in 1983, was in part based on the ease with which calcium homeostasis could be managed with the use of calcitriol, 1.25(OHhD3, in patients with hypoparathyroidism not associated with renal disease.


Based on the account of the vital role which the national finance played in supporting agriculture, the thesis presents the current situation of financial support for agriculture in China, in terms of the limited scale and irrational structure of financial support expenditure in agriculture. On the basis of the brief introduction of the current level of Chinese farmers' income, the thesis discusses the effects of scale and irrational structure of financial support expenditure in agriculture on the farmers' income, according to the related data of financial support expenditure in agriculture and rural per capita net income. The results indicate that the calculating regression equation has a remarkable explanation power, reflecting the positive role of financial support expenditure in agriculture played by national finance in increasing the farmers' income. As regards the structure of financial support expenditure in agriculture at present, according to the proportion from high to low, the expenditure primarily consists of three parts from high to low in sequence as follows: productive expenditure and funds for public undertakings, capital construction expenditure, and rural relief expenditure plus science and technology funds. Such sequence deviates from the marginal production effects of financial support expenditure in agriculture and the correlation of farmers' income, which demonstrates the severe irrationality of the structure of financial support expenditure in agriculture. Corresponding countermeasures are put forward as follows: on one hand, we should continue intensifying the efforts to support agriculture financially in order to form a regular increase mechanism; on the other hand, we should adjust and optimize the structure of financial support expenditure in agriculture, and further crystallize the investment flows.


Last summer I came across a most remarkable prefixed rubric via Canada's national newspaper The Globe and Mail. "All aboard the Redress Express," the headliner read. 2 The media had coined this name for the cross-country train ride to Ottawa by Chinese head tax payers and their families to hear Prime Minister Stephen Harper deliver a long overdue apology on June 22, 2006. "On behalf of all Canadians and the Government of Canada, we offer a full apology to Chinese Canadians for the head tax and express our deepest sorrow for the subsequent exclusion of Chinese immigrants. . . .To give substantive meaning to today's apology, the government of Canada will offer symbolic payments to living head taxpayers and living spouses of deceased payers."3 The Redress Express, publicized less than a week before the announcement, served as another kind of symbolic act. It was a palpable, visual way of making the connection between what Harper called "the most important nation building exercise in Canadian history—the construction of the Canadian Pacific Railway" and the contribution of early Chinese immigrants to this


Social Network Sites (SNSs) have become a pervasive part of people's everyday lives, the implications of their use need to be investigated and understood. We conducted a systematic literature review to lay the groundwork for understanding the relationship between SNS use and psychological distress. The review included articles published between 2003 and 2020, extracted from major academic databases. Findings revealed that the use of SNSs use can be associated to psychological distress. This study shows the factors such as depressive rumination, narcissistic behavior, excessive and unsupervised SNS use that mediate this relationship.


Manganese doped Bismuth tri sulphide crystals are synthesising using simple gel technique at ambient temperature. X Ray Diffraction analysis was done to determine the structure. Orthorhombic crystal structure was found of grown crystal. FTIR method was utilized for the analysis of various functional groups present in the complex Thermal properties of the crystal was studied by TGA was Discussed .Effect of Doping, and concentration of reactants.


The results of monitoring the populations of protected plant species of the Omsk region in the territories of Russko-Polyansky municipal district are presented. During the research 210 cenopopulations of 32 of protected plants species were found in total. The locations of 20 protected species at the regional level were identified at the studied district for the first time: Adonis villosa, A. volgensis, Allium clathratum, Alyssum lenense, Astragalus buchtormensis, A. stenoceras, Dianthus ramosissimus, Ephedra distachya, Fritillaria meleagroides, Hedysarum gmelinii, Iris halophila, I. humilis, Linum perenne, Orostachys spinosa, Puccinellia gigantea, Ranunculus polyrhizos, Stipa lessingiana, Tanacetum millefolium, Tulipa patens, Valeriana tuberose. Two species (Stipa pennata, S. zalesskii) have considered as federal protected objects. Three sites were identified where the maximum number of protected species in natural habitats is concentrated, one of them has now received the status of a specially protected natural area of local and regional significance.


This paper offers a comparison between Hume's characterizations of
enthusiasm and superstition in the essay entitled Of superstition and enthusiasm (1742)
on the one hand and in his History of England (1754-1761) on the other. This comparison
shows that Hume's historical study of religious crisis led him to complexify, and sometimes to amend, his former philosophical enquiry upon these two religious passions.


PURPOSE
To compare 13 previously published sets of duplex ultrasonographic (US) criteria with the US criteria used at the authors' institution in terms of agreement with carotid artery angiographic results.

MATERIALS AND METHODS
The authors studied 1,006 carotid arteries in 503 patients at duplex US and angiography. The degree of stenosis was determined by using duplex flow US velocities and applying 13 previously published sets of criteria and the criteria used at the authors' institution. Two independent observers evaluated the angiograms according to North American Symptomatic Carotid Endarterectomy Trial (NASCET) criteria. kappa statistics, sensitivities, specificities, positive predictive values (PPVs), negative predictive values (NPVs), and generalized linear mixed regression models were used to assess agreement between duplex US and angiographic findings.

RESULTS
Stenoses of 0%-29%, 30%-49%, 50%-69%, 70%-99%, and 100% could be differentiated with 73% overall agreement between duplex US and angiographic findings according to flow velocity criteria (kappa = 0.57; 95% confidence interval [CI]: 0.54, 0.60); however, with duplex US, the angiographic degree of stenosis tended to be overestimated. In the differentiation of stenoses of less than 70%, only 45% agreement (kappa = 0.26; 95% CI: 0.23, 0.29) was observed, whereas in the differentiation of high-grade (> or =70%) stenoses, 96% agreement was observed (kappa = 0.85; 95% CI: 0.83, 0.87). The PPV and NPV for the identification of 70%-99% angiographic stenosis were 69% and 98%, respectively, with use of the most sensitive duplex US criteria.

CONCLUSION
Duplex US is an excellent examination to screen for high-grade carotid artery stenosis; however, it tends to lead to an overestimation of the degree of stenosis. Exclusion of 70%-99% angiographic stenosis can be achieved with a sensitivity of up to 98%.


Actor's lines teaching is the basic course for film performance majors,for acquiring of actor's lines is closely connected with his performance.In the teaching practice,we find that there are some problems of speech and sounding among students,such as,small volume,weak breath,substandard speech,and ambiguous enunciation and so on,which are resulting from unqualified basic skills of actor's lines.This paper has,from pronunciation correction of PTH speech and sounding and combined with skills of broadcasting and hosting,studied the ways to carry out actor's lines teaching.


This chapter presents the activities and outcomes of the "People's Voices: Developing Cross Media Services to Promote Citizens Participation in Local Governance Activities" project.The aims of the project were a) to identify and describe a number of cross media services that can be used to promote citizens' participation in political decisions and civic activities, and b) to develop a conceptual design and a prototype system of such a service. The project included a number of field trips from Sweden to Uganda, and used participatory design and ethnographic techniques for requirements elicitation, actively involving the different stakeholders. The developed system allows people in Uganda to use their mobile phones to submit reports of irregularities in local governance or poor services delivery using an interactive voice menu interface.We hope that our specific contribution will emphasize on how novel ways of integrating and using ICT can provide opportunities to encourage and facilitate civic engagement in North Uganda. The potential massive adoption of the kind of interactive mobile services described in this book chapter can be used in unique ways to provide opportunities to make governmental services more innovative, transparent and cost-effective, as well as to encourage citizens to become more engaged and goal-focused for the common good of their society.


In this paper we present the analysis of yield data from a broad cross-section of crop variety evaluation programmes (CVEP) conducted in Australia. The main sources of variety by environment interaction are 'non-static' interactions, namely those linked to seasonal influences. These contributed an average of 41·3% of the total variance. In contrast the static component accounts for only 5·3% of the total. We develop methods for determining the relative accuracy of CVEP based on selection of newly promoted entries. The accuracy of the current testing regimes for the Australian CVEP under study is determined. The accuracy of alternative schemes, with different numbers of years of testing, numbers of locations per year and numbers of replicates per trial is also examined. Cost effective methods for improving the accuracy of CVEP are discussed.


Simultaneous targeting of tumor vasculature and inhibitors of tumor cell glycolysis may be a promising antitumor strategy. Here, we reported the total synthesis and biological evaluation of A‐ring arylurea flavonoid derivatives with B‐ring trimethoxy group, which exhibited potent antitumor activity against a variety of tumor cells in vitro. Most of the derivatives showed in vitro antitumor activity on HepG‐2, HGC‐27, MDA‐MB‐231, and A549 cells. Among them, compounds 8e, 8f, 8g, 8h, 8j, and 8l also exhibited significant anti‐proliferation effects on liver tumor cell subtypes BEL‐7402 and SMMC‐7721. Compound 8l had the lowest IC50 value (5.61 ± 0.39 μM) on HepG‐2 cells, and showed the effects of inhibiting colony formation, arresting the cell cycle in G0/G1 phase, and inducing apoptosis in a concentration‐dependent manner. In addition, the toxicity of compound 8l on human normal cells LO2 and GES‐1 was lower than that of sorafenib. The inhibitory effects of compound 8l on the expression of glycolytic rate‐limiting enzymes HKII, PFK‐1, PKM2 and vascular endothelial growth factor were further evaluated. Corresponding reduction in intracellular lactate was also detected after compound 8 treatment. Our results support an antitumor strategy targeting tumor vasculature and glycolysis to discover and develop a new generation of antitumor drugs.


Objective:To evaluate the clinical value of selective renal artery embolization for renal carcinoma,arteriovenous malformation and traumatic renal hemorrhage.Methods:Selective renal artery embolization was performed in 21 patients,8 case were embolized with gelatin sponge chips before operation for renal carcinoma,and 6 case were embolized with polyvinyl alcohol (PVA) partices and gelatin sponge after chemo-therapy for palliative treatment of advanced renal carcinoma,2 case arteriovenous malformation,(congenital 1 case,acquired 1 case) were embolized with PVA partices or steel coils,5 case were embolized with PVA,gelatin sponge ang/or steel coils for traumatic renal hemorrhage. Results:In renal carcinoma,after renal artery embolization during operation,less operation time because of clear operation field.3 moths after embolization,the tumormass was decreased evidently in advanced renal carcinoma for palliative treatment.In arteriovenous malformation and traumatic renal hemorrhage,the hemorrage had been successfully controlled by means of renal artery embolization,and the renal function was maintained as much as possible.No severe complications occurred after embolization in all patients.Conclusion:As a minimal invasive technique,selective renal artery embolization is a safe and effective method with less complication for the treatment of renal diseases and more effective to the patient with traumatic renal hemorrhage.


Summary form only given. Generation of cw THz electromagnetic waves by photomixing of two lights from independent two lasers had attracted a great deal of attention. However, each laser in the system should be stabilized separately, and a perfect spatial mode matching was required for efficient THz generation. Optical-alignment procedure is troublesome in practical uses. We report here a novel cw THz wave generation system using a two-longitudinal-mode laser diode (LD) in place of those complex or expensive light sources so far used. The two-longitudinal-mode LD used here radiated two coherent lights with their separation about 0.9THz, simultaneously from a single stripe.


The legal problem of aerospace objects has been an important issue discussed by the Legal Subcommittee of UNCOPUOS(Committee on the Peaceful Uses of Outer Space) since 1995.On the basis of replies from some countries to items in the questionnaire issued by the Legal Subcommittee,the author presents a study into the concept,character and attributes of aerospace objects and arrives at some explicit conclusions.


The peer to peer multimedia applications have recently generated much interest in wireless network infrastructure with supporting the quality of service QoS commu nications In this paper we propose a new on demand QoS routing namely link state multi path QoS routing protocol in a wireless mobile ad hoc network MANET Our proposed scheme o ers a bandwidth routing protocol for QoS support in a multihop mobile network Our QoS routing protocol determines the end to end bandwidth calcu A preliminary version of this paper presented at EW European Wireless Feb Florence Italy This work is supported by the National Science Council of the Republic of China under Grant NSC E and the Ministry of Education the the Republic of China under Grant A H FA and A H FA Learning Technology lation and bandwidth allocation at the destination Our protocol collects link bandwidth information from source to destination in order to construct a network topology with the information of link bandwidth at the destination To satisfy a given bandwidth requirement the bandwidth calculation of the QoS route are determined at the des tination to accurately determine the QoS uni path or multi path route depending on the status of network bandwidth Our routing scheme may o er a multi path route if a MANET with the insu cient network bandwidth and provide a uni path route if the network bandwidth is su cient The destination eventually determines the QoS multi path routes and replies to the source host to perform the bandwidth reservation Our routing scheme obviously improves the success rate of identifying a QoS route and the simulation result demonstrates this improvement


The article considers the features of the development of computer means of learning for effective professional retraining of specialists in economics. The author justified the use of andragologicals approaches to the creation of such competitive in this market of educational services educational tools. The article discusses the problems of composition and structure of the network teaching materials aimed at the remote student with it.


The precision of XRF measurements on a Rigaku 3064 has been determined for 10 major and 12 trace elements in 10 geochemical reference rocks. A complete procedure for evaluating the sources of imprecision in XRF analyses is presented with new equations and data demonstrating that for many measurements a minute is an adequate count time for obtaining the minimum error (1% RSD) in an analysis. Longer analysis times were found to be limited by sample preparation errors, and for very long analysis times, the precision is predicted to get worse.


The publication introduces 33 letters of the 1890s from Z.N. Gippius to the writer, poet and playwright, St. Petersburg lawyer F.A. Chervinsky. Gippius's short romance with Chervinsky, as happened with her other heartfelt passions, provoked an intense epistolary dialogue, avoiding, however, direct expression and self-reflection of feelings. Gippius's letters are dominated by playing and light coquetry, full of hints and provocations, and the life romance itself is built by her as a tense psychological experiment. Their relationship in 1892 –1893 found reflection in the works of both participants — in Gippius's fairy tale "Time" and Chervinsky's story "Sylphide", typical examples of modernist interrelation of literature and life. At the same time, the letters are interesting for the details of literary events reported in them, for the characteristics of a number of contemporary writers — N. Minsky, D. Merezhkovsky, A.P. Chekhov and other common acquaintances.


This review attempted to address the recent and current developments in dynamic membrane bio-reactor (DMBR), including membrane formation mechanisms, filtration models, and manipulation principle. In this paper, the effect of support module, water head drop (WHD), mixed liquor suspended solids (MLSS), and operation parameters on the filtration performance were reviewed. Lastly, the perspectives of the technology in the coming years were also addressed.


This article contains the full translation of reform motives of the Meiji Civil Code(the part of property law), which are based on the texts edited by HIRONAKA Toshio, Minp? Shuseian (zensampen) no Riy?sho (Y?hikaku, 1987), and adds some comments from the viewpoints of the Korean lawyer, whose legislation has been widely influenced by the European legal tradition via the Japanese legal scholarship. The provisions of a possessory right in the Meiji Civil Code shows their effort not to be fully influenced by the Japanese former Civil Code draft, and further, by the French Civil Code. The intent to own has been excluded from the concept of possession, and it requires only the intent to possess an object for its possessor's own sake. The Right of Possession was basically not designed for the acquisition of the right of ownership but prepared to protect an actual rule over a real object. Any intent of its possessor is not required to satisfy the Right of Possession in Korean legal system. In addition, the Korean Civil Code has improved the Japanese provision of Prompt Acquisition(卽時取得) in the light of essence of Bona fide acquisition(善意取得). Although each individual provision should be examined more carefully, this shows that the Korean Civil Code concerning possession has a more logical and concise system, which definitely recognizes the object to be protected through it.


In this paper, a step-down converter for mobile LED applications is proposed. The converter which is operated with 4 MHz high switching frequency is capable of reducing mounting area of passive devices. It consists of a power stage and a control block. The power stage is composed of inductor, output capacitor, MOS transistors and feedback resistors, meanwhile, the control block consists of a pulse width modulator, an error amplifier and an oscillator etc. The proposed step-down converter has been designed and verified with a 0.35 /an 1-poly 4-metal BCD process technology. Simulation results show an output voltage of 1.8 V and output current of 100 mA for an input voltage of 3.7 V. The output current capability of the proposed converter is higher compared to the conventional 500 kHz driven converter (25~50 mA) with the duty ratio of 0.4.


An important class of hybrid dynamical systems are switched systems which include multimodal systems or systems with variable structure. In the present paper we build on our earlier work on qualitative theory of discontinuous dynamical systems to establish new results for the stability and asymptotic stability of an equilibrium of such systems (defined on finite dimensional spaces). The results presented herein are less conservative than existing stability results for switched systems.


Aim: The purpose of this study was to examine the prevalence of dental caries in primary dentition of 5–6-year-old children in urban and rural areas of Jabalpur city. Materials and Methods: The present cross-sectional study was conducted in the rural and urban areas of Jabalpur city, India. A power analysis was carried out to select a representative sample of 5–6-year-old children (n = 408), 204 from government schools and 204 from private schools. Parents were interviewed using a self-structured questionnaire to collect data with regard to variables under evaluation. Statistical Analysis: Collected data were subjected to descriptive analysis using the SPSS 12.0 version. Risk factor association with dental caries was investigated using a stepwise logistic regression analysis with P < 0.05 considered significant. Results: This shows significantly higher decayed missing filled teeth among rural children than urban children. It was seen that 46.5% of children whose mothers were illiterate were affected with dental caries. In urban area, 91.5% of children whereas 77% of children in rural area have parental control on sugar consumption. Conclusion: It is important to focus on parents' education level when planning preventive programs for young children. Assessing family-related risk factors is essential when instituting preventive/treatment programs for young children.


A new world view theoretical framework the technological social paradigm scope of the ecological social paradigm explaining the paradigm change models of paradigm change theoretical arguments.


Quadtrees represent 2-dimensional (spatial) data in a way which takes advantage of spatial coherence in the phenomena being represented. A square enclosing a region of interest is divided into four quadrants, and these quadrants are recursively partitioned into subquadrants until all subquadrants are uniform with respect to the phenomenon. This paper explores the utility of quadtrees as a data structure for geographic information systems. Attention is focused on linear quadtrees, and in particular on 2-dimensional runencoding, an effective structure for quadtrees.


Let X be a smooth and connected Riemann surface of genus g 0 and f: X P1, h: X P1 non-constant meromorphic functions on X. Fix an integer n 4 and assume the existence of n distinct points a1, , an P1 such that [image omitted] (set-theoretically) for every i. Here we prove that either f = h or [image omitted].


X-ray tube includes a target to form a divergent X-ray beam electrons impinge thereon. Target has a surface formed of a first target material and the second target material, each of which is adjusted to emit a respective X-ray energy profile. First X-ray optical component for directing the beam to the sample spot is be provided, the first X-ray optic is divergent X-ray beam from the energy emitted by the first target material to the first energy was monochromatic, the second X-ray optical component for directing the beam to the sample spot are possible provided a second X-ray optical component, the energy released by the second target material to a second energy monochromatic the divergent X-ray beam. Fluorescence from induced sample spot by the first monochromatic energy and second monochromatic energy, separate at least one of the concentration of the element for measuring or coated and elements in the lower substrate, in the sample It is used to measure the.


METALLURGY in India dates back to the ancient times. In the middle ages, iron and steel manufacture flourished, and the renowned Indian steel was exported, especially to the Middle East. A relic of the Indian workmanship of that era stands today in Delhi-the glistening, 1500-year old, rust-free iron pillar in the shadow of the lofty Qutub Minar. Between then and today, one major change in metallurgy is its transformation from a craft to science.
Out of about 70 metals known to occur, iron in its many forms is still the most used metal. A new trend in modern industry since the beginning of this century, however, is
the increasing utilization of many new metals, considered hitherto as scientific curiosities. The number of metals known to commerce today is about 45 in contrast to barely 15 known in the beginning of the present century. Indeed, so great and rapid has been the exploitation of metals that more minerals have been extracted from the earth during the past 40 years than in all the preceding years of history.