نتایج جستجو برای: analytical methods
تعداد نتایج: 2002613 فیلتر نتایج به سال:
Sorafenib is an anticancer drug used to treat late stage kidney and liver cancer. advanced renal cell carcinoma (RCC; a type of cancer that begins in the kidneys). also hepatocellular (a cancer) cannot be treated with surgery certain thyroid has spread other parts body radioactive iodine. class medications called kinase inhibitors. It works by blocking action abnormal protein signals cells mult...
Spatial data, which is one of the main needs of human societies from business organizations to the general users today, cannot meet the needs of a wide range of users without changing the structure of conventional methods of data registration and updating on a metropolitan scale. Open Street Map, as one of the most successful implementations of the crowdsourcing approach to spatial data with th...
further to emerging the environmental protection thoughts in the 1970's, most of the governments in the developed countries have been faced with social pressures for taking actions in order to stop the degradation in the environment and the quality of life. in response to such a societal desire, those governments have approved the requirement of environmental impact statement for the proje...
abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...
A fundamental limiting factor in the assessment of microbial quality of waters, and especially drinking water, is often the very low number of each organism present. Therefore, it is important to note that most microbiological procedure consists of: concentration/enrichment, detection and quantification (Table 8.1). A consequence of this multi-step approach is that technological advancement of ...
Arsenic exists in the form of various chemical species differing in their physicochemical behaviour, toxicity, bioavailability and biotransformation. The determination of arsenic species is an important issue for environmental, clinical and food chemistry. However, differentiation of these species is a quite complex analytical task. Numerous speciation procedures have been studied that include ...
Usability plays very important role in fulfilling the quality requirements of a software system as it expresses the relationship between the software and its application domain. If the software system is usable then it is more productive, useful and thus it satisfies user’s expectations. Inspite of such importance of usability there are no explicit criteria to measure it because usability can b...
The tree of life is inherently fractal. Look closely at one lineage of a phylogeny and it dissolves into many separate lineages, and so on down to a very fine scale. There is now a great body of phylogenetic research that has provided numerous tools applicable at particular, usually fairly constrained, scales. These tools have left many phylogenetic questions unanswered. We think these question...
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