Variation In Basic Density, Fibre And Vessel Morphology Of Eucalyptus Tereticornis Sm. Clones
The basic density, fibre and vessel morphology of five clones of Eucalyptus tereticornis developed by ITC Bhadrachalam were reported. The five clones represented by four trees each of four and half years old, were from Sarapaka, Andhra Pradesh. Significant variation have been found among the clones. Basic density is positively correlated with fibre length, vessel diameter and positively correlated with vessel frequency while other characteristics have no effect. The results obtained in this study have shown the suitability of raw material for paper and pulp where the required basic density is met with. Mainly these clones are primarily tried to meet the requirements of paper and pulp industry.
Potential of Hevea brasiliensis Clones, Eucalyptus pellita and Eucalyptus tereticornis Wood as Raw Materials for Bioenergy Based on Higher Heating Value
About 11% of the world’s primary energy consumption comes from biomass. However, a continuing material deficit indicates the need to find suitable timber for use as bioenergy. In this context, this study aims to determine some chemical and energetic properties, wood density, and fiber features of 10 Hevea brasiliensis clones, including Eucalyptus tereticornis and E. pellita species, to understand how the characteristics of studied woods might interfere with higher heating value (HHV) and determine if these woods and their residues would present potential for bioenergy. In general, HHV results corroborate those in the literature, e.g., E. pellita (16,502 kJ kg−1) lower value, and MT45 H. brasiliensis clone (19,757 kJ kg−1) higher value, and woods with higher extractive contents and lignin content, but lower holocellulose content, of wood pulp, in addition to denser woods with longer fibers and thicker walls, are woods considered to have higher heating values and, hence, indicated as potential woods for use in bioenergy. However, it is suggested that wood characteristics should be analyzed together to determine the most suitable material for use in bioenergy since a high value of one factor influencing HHV would not, in and of itself, establish suitability of the wood for bioenergy. Nonetheless, all wood samples could have their waste exploited for bioenergy since they range from 16,502 kJ kg−1 in E. pellita to 19,757 kJ kg−1 in the MT45 clone of H. brasiliensis.
Repressive coping before and after diagnosis of breast cancer
Objective: The aim was to investigate to which extent emotional repression is a premorbid coping tendency of cancer patients and/or a coping response to the threat posed by a cancer diagnosis. The results of one previous study of breast cancer patients suggest the latter possibility, and our aim was to replicate and extend these findings.