نتایج جستجو برای: dms

تعداد نتایج: 4560  

2005
S. Kloster

A global coupled ocean-atmosphere modeling system is established to study the production of dimethylsulfide (DMS) in the ocean, the DMS flux to the atmosphere, and the resulting sulfur concentrations in the atmosphere. The DMS production and consumption processes in the ocean are simulated in the marine biogeochemistry model HAMOCC5, embedded in a ocean general circulation model (MPI-OM). The a...

2004
Dierdre A. Toole David A. Siegel

[1] The factors driving dimethylsulfide (DMS) cycling in oligotrophic environments are isolated using a time-series of DMS sampled in the Sargasso Sea. The observed distribution of DMS is inconsistent with bottom-up processes related to phytoplankton production, biomass, or community structure changes. DMS concentrations and estimates of net biological community production are most highly corre...

2016
Frances E. Hopkins Thomas G. Bell Mingxi Yang David J. Suggett Michael Steinke

Corals are prolific producers of dimethylsulfoniopropionate (DMSP). High atmospheric concentrations of the DMSP breakdown product dimethylsulfide (DMS) have been linked to coral reefs during low tides. DMS is a potentially key sulfur source to the tropical atmosphere, but DMS emission from corals during tidal exposure is not well quantified. Here we show that gas phase DMS concentrations (DMSga...

Journal: :Applied and environmental microbiology 1999
B P Lomans H J Op den Camp A Pol C van der Drift G D Vogels

The roles of several trophic groups of organisms (methanogens and sulfate- and nitrate-reducing bacteria) in the microbial degradation of methanethiol (MT) and dimethyl sulfide (DMS) were studied in freshwater sediments. The incubation of DMS- and MT-amended slurries revealed that methanogens are the dominant DMS and MT utilizers in sulfate-poor freshwater systems. In sediment slurries, which w...

Journal: :The Journal of veterinary medical science 2001
S Mizuno Y Mizuno-Horikawa T Kurosawa

Diffuse mesangial sclerosis (DMS) is one of the hereditary glomerular diseases and histologically characterized by severe glomerulosclerosis and subsequent tubulo-interstitial fibrosis (TIF). In DMS patients, renal dysfunction correlates well with TIF, rather than with glomerular lesions. Thus, molecular mechanisms whereby TIF in DMS progresses should be addressed. Previously, we found that nep...

Journal: :Beverages 2023

Dimethyl sulfide (DMS) is a flavor compound, characteristic of the truffle aroma in red wines, and well-known to be fruity exhauster. DMS comes from degradation dimethyl potential (DMSP) during winemaking. Up now, little known about role closure on DMSP ageing. For that purpose, effect four micro-agglomerated wine cork closures was studied DMS/DMSP equilibrium, along with six other volatile sul...

2017
M. E. Kim Y. D. Kim S. Lee

Dimethyl sulphide (DMS) is an important compound in global atmospheric chemistry and climate change. Traceable international standards are essential for measuring accurately the long-term global trend in ambient DMS. However, developing accurate gas standards for sub-nanomole per mole (nmol/mol) mole fractions of DMS in a cylinder is challenging, because DMS is reactive and unstable. In this st...

2000
M. G. Scarratt M. Levasseur S. Schultes G. Cantin A. Vézina M. Gosselin S. J. de Mora

Production and consumption of dimethylsulfide (DMS) were studied in surface waters of the northwest Atlantic between latitude 32° and 45° N during May 1998. The kinetics of DMS production by the whole planktonic community were studied in short-term (3 h) experiments using additions of dissolved dimethylsulfoniopropionate (DMSPd) (0 to 3000 nM). Measurements of DMS production and DMSPd consumpti...

2008
Nan Zheng

This paper begins with a brief introduction to the field of spintronics and dilute magnetic semiconductor (DMS), the second part discusses in detail on three typical DMS materials–(Ga,Mn)As, (Ga,Mn)N and Transition metal doped oxide. Next mechanism of DMS ferromagnetism along with its magneto transport properties are discussed. Following that, an important sample preparation technique in DMS– M...

2011
Rena Sanetomo Kazuyoshi Hosaka

A Mexican hexaploid wild potato species, Solanum demissum (dms), was only used as a female in previous breeding programs. The resulting clones with dms cytoplasm produced abundant, but non-functional pollen. A 170 bp DNA fragment, named Band 1, was originally detected in the F(1) hybrid between dms and S. tuberosum. In this study, the sequenced region was extended to 1,032 bp; nevertheless, it ...

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