Results 121 to 130 of about 198,787 (311)

THE ECOLOGICAL SIGNIFICANCE OF FINE PARTICLE SELECTION BY THE STRIPED MULLET MUGIL CEPHALUS1 [PDF]

Limnology and Oceanography, 1968
By tracer experiments using 32P and a comparison of sediment and stomach content particle sizes, Mugil cephalus Linnaeus is shown to prefer very fine particles wherever sediments are involved in feeding. It is suggested that these small inorganic and plant detrital sediment particles are much richer both in absorbed organic material and in adsorbed ...
openaire   +2 more sources

Gut Microbiota Modulation by Inulin Improves Metabolism and Ovarian Function in Polycystic Ovary Syndrome

Advanced Science, EarlyView.
This work proposes a novel strategy targeting gut microbiota for managing polycystic ovary syndrome (PCOS). Inulin, a gut microbiota modulator, notably boosts the growth of short‐chain fatty acids (SCFAs)‐producers, represented by Bifidobacterium, thereby improving glucolipid metabolism and ovarian function of PCOS through suppressing the inflammatory ...
Lulu Geng, Xin Yang, Jiani Sun, Ximing Ran, Dan Zhou, Mingming Ye, Li Wen, Ruirui Wang, Miaoxin Chen   +8 more
wiley   +1 more source

SPUX: Scalable Particle Markov Chain Monte Carlo for Uncertainty Quantification in Stochastic Ecological Models

, 2018
Calibration of individual based models (IBMs), successful in modeling complex ecological dynamical systems, is often performed only ad-hoc. Bayesian inference can be used for both parameter estimation and uncertainty quantification, but its successful application to realistic scenarios has been hindered by the complex stochastic nature of IBMs ...
Mira Kattwinkel, Jonas Šukys
openaire   +2 more sources

Cryo‐EM Analysis of a Tri‐Heme Cytochrome‐Associated RC‐LH1 Complex from the Marine Photoheterotrophic Bacterium Dinoroseobacter Shibae

Advanced Science, EarlyView.
Cryo‐EM reveals a closed 17‐subunit LH ring encircling the RC‐LH1 complex in Dinoroseobacter shibae, featuring a novel helix‐turn‐helix subunit bridging RC and LH. Mg2⁺/Ca2⁺ stabilizes the complex, while periplasmic Cyt c₂ mediates electron transfer via a tri‐heme Cyt to the special pair of bacteriochlorophylls. Insights into energy/electron efficiency
Weiwei Wang, Yanting Liu, Jiayi Gu, Shaoya An, Cheng Ma, Haichun Gao, Nianzhi Jiao, Jian‐Ren Shen, John Thomas Beatty, Michal Koblížek, Xing Zhang, Qiang Zheng, Jing‐Hua Chen   +12 more
wiley   +1 more source

Doping/Alloying Pathways to Lead‐Free Halide Perovskites with Ultimate Photoluminescence Quantum Yields

Angewandte Chemie International Edition, Volume 62, Issue 3, January 16, 2023., 2023
Lead‐free halide perovskites emit broadband visible photoluminescence originating from self‐trapped excitonic states. Introduction of “alien” metals via doping or alloying into perovskite matrices often results in a dramatic enhancement of both light absorbance and emission.
Oleksandr Stroyuk, Oleksandra Raievska, Jens Hauch, Christoph J. Brabec   +3 more
wiley   +1 more source

Enhancer Extrachromosomal Circular DNA ANKRD28 Elicits Drug Resistance via POU2F2‐Mediated Transcriptional Network in Multiple Myeloma

Advanced Science, EarlyView.
Enhancer eccANKRD28‐manipulated MM cells have been demonstrated to facilitate drug resistance and promote MM progression by activating the key transcription factor, POU2F2. POU2F2 interacts with sequence‐specific eccANKRD28 as well as RUNX1 and RUNX2 motifs to form the protein complex, which activates the promoter of oncogenes (IRF4, JUNB, IKZF3, et al.
Binzhen Chen, Jia Liu, Yaoxin Zhang, Changming Shi, Di Zhu, Guoqiang Zhang, Fei Xiao, Lu Zhong, Minyue Zhang, Lai Guan Ng, Honghui Huang, Tingting Lu, Jian Hou   +12 more
wiley   +1 more source

Assessment of fly ash based sand as a perspective alternate backfill material for stowing in mining activity

Discover Geoscience
Due to the paucity of river sand and increased regulations on sand mining, mine fill voids are kept emptied, fostering the demand for alternate backfilling material.
Kummari Sekhar, Bendadi Hanumantha Rao
doaj   +1 more source

Charting the course of \emph{Sargassum}: Incorporating nonlinear elastic interactions and life cycles in the Maxey--Riley model [PDF]

arXiv
The surge of pelagic \emph{Sargassum} in the Intra-America Seas, particularly the Caribbean Sea, since the early 2010s has raised significant ecological concerns. This study emphasizes the need for a mechanistic understanding of \emph{Sargassum} dynamics to elucidate the ecological impacts and uncertainties associated with blooms.
arxiv  

Bi‐Induced Few‐Layered Graphite Frameworks as Efficient Interfacial Transitions Toward Ultrafast Potassium Storage

Advanced Science, EarlyView.
Design and synthesis of a composite anode material for potassium‐ion batteries, featuring few‐layered graphite encapsulated Bi nanoparticles embedded in Bi‐doped porous carbon fibers, to achieve ultrafast potassium storage. The few‐layer graphene framework, derived from a graphitization mechanism involving interstitial carbon atom rearrangement during ...
Bozhi Yang, Xin Min, Xinyu Zhu, Shaorou Ke, Shujie Yang, Ya Chen, Wei Wang, Ruiyu Mi, Yangai Liu, Zhaohui Huang, Xi Kai, Minghao Fang, R. Vasant Kumar   +12 more
wiley   +1 more source

Impacts of water treatments on bacterial communities of biofilm and loose deposits in drinking water distribution systems

Environment International
Treated drinking water is delivered to customers through drinking water distribution systems (DWDSs). Although studies have focused on exploring the microbial ecology of DWDSs, knowledge about the effects of different water treatments on the bacterial ...
Yue Zhang, Xiaoming Li, Anran Ren, Mingchen Yao, Chen Chen, Haichen Zhang, Walter van der Meer, Gang Liu   +7 more
doaj