نتایج جستجو برای: life stages
تعداد نتایج: 914297 فیلتر نتایج به سال:
Tropical tree communities are shaped by local-scale habitat heterogeneity in the form of topographic and edaphic variation, but the life-history stage at which habitat associations develop remains poorly understood. This is due, in part, to the fact that previous studies have not accounted for the widely disparate sample sizes (number of stems) that result when trees are divided into size class...
Phytomonas tumefaciens, the root nodule organisms, and other related bacterial species may produce, in the course of their life histories, peculiar, star-shaped aggregates of cells. Beijerinck (1890) and Beijerinck and van Delden (1902) were apparently the first to describe this phenomenon. Working with the root nodule bacteria and Alcaligenes radiobacter these investigators interpreted this ph...
A basic protein fraction, migrating as a single band in acetic acid-urea gel, distinct from histones, was isolated from mouse sperm collected from vasa deferentia and caudae epididymides and was used to immunize female rabbits. The presence of antibodies to the mouse sperm protein (MSP) in the rabbit antisera was demonstrated by a cytoimmunofluorescence procedure using the cells of origin of th...
Recent experience has shown, that interconnected systems are vulnerable to attacks, if security questions are not met appropriately. In this paper we give selected reasons for the current dissatisfying security level of distributed systems and present selected approaches of making systems more secure. We describe our concept of a ,,Security Improvement Feedback Loop” which is a systematic way o...
Gene expression is known to vary significantly during the Leishmania life-cycle. Its monitoring might allow identification of molecular changes associated with the infective stages (metacyclics and amastigotes) and contribute to the understanding of the complex host-parasite relationships. So far, very few studies have been done on Leishmania (Viannia) braziliensis, one of the most pathogenic s...
Consumer products are deployed from market-in stage through growing-up stage to maturated stage by gradually shifting their appealing features from fundamental functions to supplemental value-addition over their life stages. This paper investigates the underlying design patterns in such product deployment toward revealing design knowledge with wider and longer visions. After the analysis proced...
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The aim of this study was to describe the ontogeny of thyroid follicles in cobia Rachycentron canadum. Larvae were sampled daily (n=15 - 20) from hatching until 15 dah (days after hatching). Following, larvae were sampled every two days by 28 dah; a new sample was taken at 53 dah. The samples were dehydrated, embedded in Paraplast, and sections of 3 µm were dewaxed, rehydrated and stained with ...
AIM To compare the dimensions of quality of life in the stages of chronic kidney disease and the influence of sociodemographic, clinical and laboratory data. INTRODUCTION The information available on the quality of life of patients on conservative treatment and the relationship between the quality of life and glomerular filtration rate is limited. METHODS 155 patients in stages 1-5 of chron...
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