Results 81 to 90 of about 717,300 (315)

Nitrogen Isotopes in the Global Ocean [PDF]

, 2013
Nitrogen is an essential nutrient for life. Its low abundance throughout much of the sunlit surface ocean limits the growth of primary producers that form the base of ocean ecosystems.
Somes, Christopher J., Somes, Christopher   +1 more
core  

YIPFα1A expression is regulated by multilayered molecular mechanisms

FEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji, Yurika Nakanishi, Nobuhiro Nakamura   +2 more
wiley   +1 more source

Flow control for microfluidic system with liquid nitrogen valve

, 2009
To achieve multiple functions of microfluidic systems, microvalves are indispensable units to control fluid paths, close/open specific sections, and measure reagent volumes.
梁振, 张玉奎, 朱贵杰, 张维冰, 孙良亮, 张丽华   +5 more
core  

Feasibility Study on Liquid Nitrogen Fracturing Technology for Low-Permeability Reservoirs in Bohai Oilfield

Shiyou jixie
The stimulation of low-permeability reservoirs in the Bohai oilfield faces the problems of rapid production decline and short stable production period.
Li Junbao, Wen Haitao, Wang Xiaopeng, Zhang Qilong, Li Yueli, Yu Jiansheng   +5 more
doaj  

Study on Metallurgical Kinetics of Blowing Nitrogen Alloying of Ultra-Low Carbon Austenite Stainless Steel 316L and Application

Teshugang, 2017
According to double film theory the kinetics model of blowing nitrogen alloying in steel liquid during stainless steel refining is established. By using silicon-molybdenum bar furnace the effect of nitrogen blowing time (0~70 min), nitrogen partial ...
时彦林, 张士宪
doaj  

Experimental Study on the Evolution of Fracture Aperture of Single-Fracture Granite during Liquid Nitrogen Cold Shock Cycling

Geofluids
Fractures in hot dry rock (HDR) reservoirs are the locations where heating fluid flows exchange heat with the HDR matrix. Cold shock with liquid nitrogen is one method for stimulating cracks. This study investigates the evolution law of fracture aperture
Haiping Niu, Weidong Yu
doaj   +1 more source

Solid and liquid nitrogen

Physics Reports, 1976
Abstract Condensed nitrogen, one of the simplest molecular systems, has been the focus of vigorous and productive study in recent years. This paper reviews the experimental and theoretical literature on nitrogen giving primary emphasis to the solid state, although some attention is devoted to the liquid phase also.
Department of Physics and Astronomy, University of Florida, Gainesville, Florida 32611, U.S.A. ( host institution ), Scott, T.A.   +1 more
openaire   +2 more sources

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Development and evaluation of shallow injection of slurry into ley [PDF]

, 2004
Shallow injection of slurry on grassland can reduce ammonia emissions compared to surface spreading and increase plant nitrogen utilisation. Other advantages include enhanced silage quality and lower odour.
Rodhe, Lena
core  

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

FEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta, Nidhi Yadav, Subhasmita Das, R. Rajendra Kumar Reddy, Nupur Sharma, Amol Ratnakar Suryawanshi, Jaswinder Singh Maras, Ranjan Kumar Nanda   +7 more
wiley   +1 more source