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Literature survey

About: Literature survey is a research topic. Over the lifetime, 15372 publications have been published within this topic receiving 459196 citations.


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Journal ArticleDOI
TL;DR: This review reports the recent advances made on the therapeutical potential of aurones in different biological areas and discusses their synthesis, structure-activity relationships, and the importance of the substitution pattern.
Abstract: Aurones [2-benzylidenebenzofuran-3(2H)-ones] are the secondary metabolites natural compounds belong to the flavonoids family, and structurally are the isomers of flavones, widely present in fruits and flowers where they play significant role in the pigmentation of the part of plant in which they occur. Literature survey clearly indicates that flavones, chalcones, flavonols and isoflavones have been studied largely for their therapeutical potential. Somehow, aurones still are less studied and it is only recently that these compounds have begun to be investigated. In this review, we report the recent advances made on the therapeutical potential of aurones in different biological areas. Their synthesis, structure-activity relationships, the importance of the substitution pattern will also be discussed. Finally, some aspects regarding the possible development of aurones will be highlighted briefly.

149 citations

Journal ArticleDOI
TL;DR: A survey of the last three years (2005-2007) offering a critical review of these new sorbents available for use in trace metal enrichment is provided in this article, including microorganisms and nanomaterials used for the solid phase extraction of metal ions from various sample matrices.
Abstract: Sample pretreatment methods, such as separation and/or preconcentration prior to the determination of metal ions have developed rapidly due to the increasing need for accurate and precise measurements at extremely low levels of ions in diverse matrices. This review covers new sorbents including microorganisms and nanomaterials used for the solid-phase extraction of metal ions from various sample matrices. A literature survey of the last three years (2005-2007) offering a critical review of these new sorbents available for use in trace metal enrichment is provided. To keep the focus on new sorbents, some of the papers relating to well-known sorbents such as activated carbon are excluded.

149 citations

Journal ArticleDOI
TL;DR: In this paper, recycling of automotive aluminum is reviewed to highlight environmental benefits of aluminum recycling, use of aluminum alloys in automotive applications, automotive recycling process, and new technologies in aluminum scrap process.

149 citations

Journal ArticleDOI
TL;DR: This work describes four patients and their dramatic clinical and hemodynamic response to treatment with prednisone when symptomatic measures failed and a novel approach for symptomatic antiphospholipid syndrome (APS) related valvulopathy involves treatment with systemic corticosteroid.

149 citations

Journal ArticleDOI
TL;DR: Many quantum yield values reported in the literature are affected by one or more of these errors, and the intrinsic efficiency of photosynthesis is mostly invariant among C3 plants, emphasizing the importance of the measurement and data analysis protocols in obtaining accurate and reliable quantum yield data.
Abstract: Photosynthetic efficiency is often quantified as the light-limited, maximum quantum yield in eco- physiological studies. Four published comparative stud- ies report that photosynthetic efficiency varies little among plant species of widely diverse origins, and that quantum yields were near the maximum theoretically at- tainable value. However, many other published studies contradict this conclusion, reporting quantum yields as low as 30% of those found in the comparative studies. These studies have created the impression that certain plants, particularly wild plants growing outdoors, may have intrinsically low photosynthetic efficiencies. To in- vestigate the validity of these differing interpretations, we compiled quantum yield data from a survey of 30 published studies and compared those with data from the two most comprehensive comparative quantum yield studies. We also included quantum yield observations that we made on ten species. While our data confirm the results of the comparative studies indicating that maxi- mum quantum yield is high and invariant, the literature survey data showed a wide range of quantum yield val- ues. To investigate whether low quantum yield values could be caused by data collection and analysis tech- niques, we analyzed photosynthetic light-response data. Substantial underestimation of quantum yield could re- sult from including in the calculation data extending be- yond the linear region of the photosynthetic light re- sponse. In some cases quantum yield measurements can be influenced by changing levels of intercellular CO 2 during measurements. We conclude that many quantum yield values reported in the literature are affected by one or more of these errors, and the intrinsic efficiency of photosynthesis is mostly invariant among C 3 plants. This emphasizes the importance of the measurement and data analysis protocols in obtaining accurate and reliable quantum yield data.

149 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202239
2021987
2020987
2019816
2018799
2017870