Results 51 to 60 of about 2,123,623 (331)

Effects of high water level on the river residence period of juvenile Chinese sturgeon Acipenser sinensis in the Yangtze River

open access: yesKnowledge and Management of Aquatic Ecosystems, 2012
The migration time of newly hatched Acipenser sinensis from the spawning area (river km 1675) to the Yangtze estuary (rkm 0) was ascertained in the years 1996–2007 (time range 192–243 days), and its relationship to water levels surveyed at 12 typical ...
Zhang H.   +4 more
doaj   +1 more source

Transcription factor KLF15 inhibits the proliferation and migration of gastric cancer cells via regulating the TFAP2A-AS1/NISCH axis

open access: yesBiology Direct, 2021
Background Recently, overwhelming evidence supports that long noncoding RNAs (lncRNAs) play crucial roles in the occurrence and progression of tumors. However, the role and mechanism of lncRNA TFAP2A-AS1 in human gastric cancer (GC) remains unclear. Thus,
Xin Zhao   +5 more
doaj   +1 more source

The anatomy of exhumed river-channel belts: Bedform to belt‐scale river kinematics of the Ruby Ranch Member, Cretaceous Cedar Mountain Formation, Utah, USA [PDF]

open access: yes, 2020
Many published interpretations of ancient fluvial systems have relied on observations of extensive outcrops of thick successions. This paper, in contrast, demonstrates that a regional understanding of palaeoriver kinematics, depositional setting and ...
Cardenas, Benjamin T.   +7 more
core  

Wnt Signaling in Neural Crest Ontogenesis and Oncogenesis. [PDF]

open access: yes, 2019
Neural crest (NC) cells are a temporary population of multipotent stem cells that generate a diverse array of cell types, including craniofacial bone and cartilage, smooth muscle cells, melanocytes, and peripheral neurons and glia during embryonic ...
Hao, Hongyan   +4 more
core   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Étude du comportement de smolts de saumon atlantique (Salmo salar L.) au niveau de la prise d'eau de l'usine hydroélectrique de Pointis sur la Garonne et estimation de la dévalaison au niveau du barrage de Rodère

open access: yesKnowledge and Management of Aquatic Ecosystems, 1999
Une expérimentation a été menée en 1998 au niveau de la prise d'eau de l'usine hydroélectrique de Pointis, sur la Garonne, de manière à déterminer, grâce à la technique de radio-pistage, le meilleur emplacement d'un futur dispositif de dévalaison.
CROZE O., LARINIER M.
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Interaction of the westerlies with the Tibetan Plateau in determining the Mei-Yu termination [PDF]

open access: yes, 2020
This study explores how the termination of the mei-yu is dynamically linked to the westerlies impinging on the Tibetan Plateau. It is found that the mei-yu stage terminates when the maximum upper-tropospheric westerlies shift beyond the northern edge of ...
Chiang, JCH, Kong, W
core  

Shorter juvenile telomere length is associated with higher survival to spawning in migratory Atlantic salmon [PDF]

open access: yes, 2017
The risk of mortality associated with a long-distance migration will depend on an animal's physiological state, as well as the prevailing ecological conditions.
Armstrong, John D.   +6 more
core   +1 more source

Home - About - Disclaimer - Privacy