نتایج جستجو برای: we can recognize ancient environmental
تعداد نتایج: 5973958 فیلتر نتایج به سال:
Hydrogen-isotopic abundances of lipid biomarkers are emerging as important proxies in the study of ancient environments and ecosystems. A decade ago, pioneering studies made use of new analytical methods and demonstrated that the hydrogen-isotopic composition of individual lipids from aquatic and terrestrial organisms can be related to the composition of their growth (i.e., environmental) water...
Behavioral biometrics based on mouse usage can be used to recognize one’s identity, with special applications in anonymous Web browsing. Out of many features that describe browsing behavior, mouse clicks (or touches) as the most basic of navigation actions, provide a stable stream of behavioral data. The paper describes a method to recognize Web user according to three click features. The dista...
background: the ductus arteriosus connects the main pulmonary trunk to the descending aorta. the incidence of isolated patent ductus arteriosus (pda) in full-term infants is about 1 in 2000. the amplatzer ductal occluder (ado) is recommended for pdas with sizes larger than 2 mm. in this procedure, we must confirm the ado position in pda by aortogram from the arterial line. the purpose of this s...
background the ala of the nose, with its particular texture and characteristics, poses both aesthetically and functionally intriguing challenges and is rather problematic regarding choices for reconstructive methods. both flaps and grafts have been used to restore natural structure of nasal ala. the present study summarizes a ten-year experience of reconstructive surgery using small composite g...
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Lonicera japonica is generally known as “Yass” or “Gole Yass” among Iranians, however, this vernacular name is not widely known in Persian botanical textbooks or encyclopedia. Moreover, specialists in plant science and horticulture recognize this plant as “Pich-e Aminoddoleh”, which has been already dedicated to another species, Lonicera caprifolium While the terms “Yassaman” and “Yassamin” wer...
chest tube (ct) or tube thoracostomy placement is often indicated following traumatic injuries. premature movement of the chest tube leads to increased hospital complications and costs for patients. placement of a chest tube is indicated in drainage of blood, bile, pus, drain air, and other fluids. although there is a general agreement for the placement of a chest tube, there is little consensu...
Research of ancient pathogens in ancient human skeletons has been mainly carried out on the basis of one essential historical or archaeological observation, permitting specific pathogens to be targeted. Detection of ancient human pathogens without such evidence is more difficult, since the quantity and quality of ancient DNA, as well as the environmental bacteria potentially present in the samp...
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