نتایج جستجو برای: endemic specimen
تعداد نتایج: 102172 فیلتر نتایج به سال:
We attempt to quantify how significant the polar archipelago of South Georgia is as a source of regional and global marine biodiversity. We evaluate numbers of rare, endemic and range-edge species and how the faunal structure of South Georgia may respond to some of the fastest warming waters on the planet. Biodiversity data was collated from a comprehensive review of reports, papers and databas...
objective: among the various impression materials, for alginate tear strength is probably more important than the compressive strength. the tear strength is important when an impression involves a mechanical undercut and/or lacks bulk strength to resist tearing. this study evaluated tear strength of iralgin and compared it with tear strength of alginoplast. methods: in this invitro experimental...
BACKGROUND An increased prevalence of epilepsy has been reported in many onchocerciasis endemic areas. The objective of this study was to determine the prevalence of epilepsy in onchocerciasis endemic areas in the Democratic Republic of the Congo (DRC) and investigate whether a higher annual intake of Ivermectin was associated with a lower prevalence of epilepsy. METHODOLOGY/PRINCIPLE FINDING...
Transmission electron microscopy (TEM) is a powerful tool for the investigation of the microstructure of materials, providing crystallographic information and composition at the nanometer scale. For such studies, samples should be transparent to the electron beam. In this review, TEM sample preparation techniques for different classes of materials, such as metals and alloys, multilayered coatin...
Dr Fahmy showed a specimen of carcinoma of the body of the uterus removed from a woman, aged 58, who had one child thirty years ago and whose menopause occurred at the age of 40. The patient was well till three years ago when she noticed the onset of a whitish leucorrhoeal discharge which gradually became more marked. Twelve months ago there was very slight bleeding at irregular intervals for a...
Annular pancreas is a relatively rare congenital diseasecaused by an embryologica1and anatomical disturbance in pancreas It may have no sympforns throughout the life and so occasionally discovered during an unrelevant surgery or autopsy but in most of the cases it shows itself as a duodenal obstruction during the infancy and childhood.Very rarely symptoms of the disease my be observed in adul...
The biodiversity hotspot of central Chile is home to a high proportion endemic species, but some these species are inconspicuous and not easily observed. During botanical exploration in the Los Queules National Reserve (Chile), population Asplenium trilobum Cav. was identified. plants were found growing on bark Myrceugenia parvifolia (DC.) Kausel tree small swamp next specimens Drimys winteri J...
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