Results 111 to 120 of about 74,161 (253)

Short-term optical variability of high-redshift QSO's

, 2004
This paper presents results of a search for short-term variability in the optical band of selected high-luminosity, high-redshift radio-quiet quasars. Each quasar has been monitored typically for 2 - 4 hours with a time resolution of 2 - 5 minutes and a ...
Bachev, R., Semkov, E., Strigachev, A.
core   +2 more sources

Ammonia-Oxidizing Archaea Show More Distinct Biogeographic Distribution Patterns than Ammonia-Oxidizing Bacteria across the Black Soil Zone of Northeast China

Frontiers in Microbiology, 2018
Black soils (Mollisols) of northeast China are highly productive and agriculturally important for food production. Ammonia-oxidizing microbes play an important role in N cycling in the black soils.
Junjie Liu, Zhenhua Yu, Qin Yao, Yueyu Sui, Yu Shi, Haiyan Chu, Caixian Tang, Ashley E. Franks, Jian Jin, Xiaobing Liu, Guanghua Wang   +10 more
doaj   +1 more source

Volume Stabilization and Acceleration in Brane Gas Cosmology

, 2004
We investigate toy cosmological models in (1+m+p)-dimensions with gas of p-branes wrapping over p-compact dimensions. In addition to winding modes, we consider the effects of momentum modes corresponding to small vibrations of branes and find that the ...
Alexander S, Alexander S H S, Ali Kaya, Bassett B A Borunda M Serone M Tsujikawa S, Battefeld T Watson S, Biswas T, Boehm T Branderberger R H, Brandenberger R, Easther R Greene B R Jackson M G Kabat D, Gunther U, Gunther U, Ivashchuk V D, Kaya A, Kaya A Rador T, Kim J Y, Kripfganz J, Nishimura H, Patil S P Brandenberger R, Watson S, Watson S, Watson S Brandenberger R H, Zhuk A   +21 more
core   +1 more source

Diversity, abundance and niche differentiation of ammonia-oxidizing prokaryotes in mud deposits of the eastern China marginal seas

Frontiers in Microbiology, 2016
The eastern China marginal seas are prominent examples of river-dominated ocean margins, whose most characteristic feature is the existence of isolated mud patches on sandy sediments.
Shaolan eYu, Peng eYao, Jiwen eLiu, Bin eZhao, Guiling eZhang, Meixun eZhao, Zhigang eYu, Xiao-Hua eZhang   +7 more
doaj   +1 more source

Relationship between facial morphology, anterior open bite and non-nutritive sucking habits during the primary dentition stage

Dental Press Journal of Orthodontics, 2014
INTRODUCTION: Non-nutritive sucking habits (NNSHs) can cause occlusal alterations, including anterior open bite (AOB). However, not all patients develop this malocclusion.
Melissa Proença Nogueira Fialho, Célia Regina Maio Pinzan-Vercelino, Rodrigo Proença Nogueira, Júlio de Araújo Gurgel   +3 more
doaj   +1 more source

Spatial distribution of ammonia-oxidizing archaea and bacteria across eight freshwater lakes in sediments from Jiangsu of China

Journal of Limnology, 2014
Ammonia-oxidizingarchaea (AOA) and ammonia-oxidizing bacteria (AOB) play an important role innitrogen transformation in freshwater sediments. However, it is still unclear towhat extent the distribution patterns of these microorganisms are affected bythe ...
Xu Sun, Aili Wang, Liuyan Yang, Liyun Guo, Qiankun Chen, Zhinxin Hu, Lijuan Jiang, Lin Xiao   +7 more
doaj   +1 more source

A Coding Theoretic Study on MLL proof nets

, 2010
Coding theory is very useful for real world applications. A notable example is digital television. Basically, coding theory is to study a way of detecting and/or correcting data that may be true or false. Moreover coding theory is an area of mathematics,
Girard, Girard, Guerrini, MacWilliams, SATOSHI MATSUOKA   +4 more
core   +1 more source

AOB - Acoustic Oceanographic Buoy: concept and feasibility

, 2006
The AOB - Acoustic Oceanographic Buoy is the single node of a network of “smart” buoys for acoustic surveillance, Rapid Environmental Assessment (REA) and underwater communications. The AOB is a lightweight surface buoy with a vertical array of acoustic receivers and temperature sensors to be air dropped or hand deployed from a small boat. The received
Jesus, S. M., Soares, C., Silva, A., Hermand, J.-P., Coelho, E.   +4 more
openaire   +1 more source

Impacts of Biochar and Gypsum on Ammonia-Oxidizing Microorganisms in Coastal Saline Soil

Agronomy
Nitrification is the core step of the soil nitrogen cycle and directly affects the nitrogen use efficiency in agricultural systems. Biochar and gypsum are two important soil amendments widely used in coastal saline farmland.
Hai Zhu, Yuxing Liu, Rongjiang Yao
doaj   +1 more source

Achieving Greater Decentralization with Atomic Ownership Blockchains

Ledger
This paper proposes Atomic Ownership Blockchains (AOB), a novel blockchain architecture designed to address scalability and decentralization challenges in distributed ledger systems.
Zhuo Liu
doaj   +1 more source