To reach a better understanding of the spatial variability of water quality in the Lower Mekong Basin (LMB), the Self-Organizing Map (SOM) was used to classify 117 monitoring sites and hotspots of pollution within the basin identified according to water quality indicators and US-EPA guidelines. Four different clusters were identified based on their similar physicochemical characteristics. The m...

Multiple comprehensive in situ bio-optical investigations were conducted from 2005 to 2010 and covered a large variability of total suspended matter (TSM) in Lake Taihu to calibrate and validate a TSM concentration estimation model based on Medium Resolution Imaging Spectrometer (MERIS) data. The estimation model of the TSM concentration in Lake Taihu was developed using top-of-atmosphere (TOA)...

The longevity of Caenorhabditis elegans is promoted by extra copies of the sir-2.1 gene in a manner dependent on the forkhead transcription factor DAF-16. We identify two C. elegans 14-3-3 proteins as SIR-2.1 binding partners and show that 14-3-3 genes are required for the life-span extension conferred by extra copies of sir-2.1. 14-3-3 proteins are also required for SIR-2.1-induced transcripti...

A clear definition of what constitutes "Big Data" is difficult to identify, but we find it most useful to define Big Data as a data collection that is complete. By this criterion, researchers on Caenorhabditis elegans have a long history of collecting Big Data, since the organism was selected with the idea of obtaining a complete biological description and understanding of development. The comp...

[reaction: see text] This letter describes the insertion of rhodium carbenoids into thioindoles. C-10 thioindoles undergo fragmentation-coupling reactions when exposed to rhodium carbenoids. In an analogous fashion, ketoester- and malonate-substituted carbenoids have been found to insert into C-2 thioindoles. In contrast, vinylogous carbenoids were found to alkylate C-2 thioindoles at C-3.

The fossil remains of euryhaline organisms in the Mesozoic±Cenozoic, non-marine sedimentary records of eastern China may have resulted from either marine transgressions or inland hypersaline lacustrine environments. Paleontological and organic geochemical results of this study have provided new evidence for marine transgressional events in the gigantic freshwater lake Songliao during the late C...

Fishing is activity which is rarely carried out all alone and is often required management system which has to be formed between people and community. In the present study, five villages around the Loktak lake of Manipur were selected by adopting a case study cum survey method to analyse the fisheries management system existing in the Loktak lake and the problems faced by the fishers in the reg...

A s i m p l i f i e d v e r s i o n o f t h e H u e c k e l oper a t o r was w o r k e d o u t t o p r e s e r v e a l l t h e a d v a n t a g e s o f t h e o r i g i n a l one w i t h a r u n n i n g t i m e c o n s i d e r a b l y s h o r t e r . I t s c o n c e p t i s based o n t h e r e i n t e r p r e t a t i o n o f t h e H u e c k e l o p e r a t o r a s a t e m p l a t e m a t c h i n ...

Despite comprising a small portion of the earth's surface, lakes are vitally important for global ecosystem cycling. However, lake systems worldwide are extremely fragile, and many are shrinking due to changing climate and anthropogenic activities. Here, we show that Poyang Lake, the largest freshwater lake in China, has experienced a dramatic and prolonged recession, which began in late Septem...

In recent years, water shortage is becoming one of the most serious problems in the Poyang Lake. In this paper, the long-term water balance items of the Poyang Lake have been analyzed to reveal the coupling effects of Three Gorges Dam (TGD) and droughts on the water balance of Poyang Lake. The results indicate that: (1) the water balance items of Poyang Lake vary greatly, e.g. lake precipitatio...