Results 51 to 60 of about 463,746 (302)

Temporal and Spatial Variation of Rainfall Erosivity in Middle Reaches of Yellow River Based on Different Models

open access: yesShuitu baochi tongbao, 2023
[Objective] Based on different models, the spatiotemporal evolution characteristics of rainfall erosivity in the middle reaches of the Yellow River were explored, in order to providing a reference basis for the assessment of soil erosion hazards and ...
Yue Zhang   +5 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Erosion and Erosion-Corrosion

open access: yesZairyo-to-Kankyo, 2008
エロージョン・コロージョン現象の複雑な発生機構と紛らわしい用語の定義のために,発電所の配管部に時として発生する「エロージョン・コロージョン」を理解することは非常に難しい.最近,エロージョン・コロージョンの代わりに,FAC (流れによって加速される腐食) という言葉が,発電所に用いられる配管材料の減肉現象として紹介されている.しかしながら,FACは必ずしも良く理解されていないし,エロージョン・コロージョンとも比較がなされていない.そこで,本稿ではエロージョン,エロージョン・コロージョンおよびFAC現象の理解を深め,再確認をするために,まず,エロージョンおよびエロージョン・コロージョンの起源,定義およびこれまでの基礎的な見解についてまとめた.次に,流速と環境の腐食性を軸にし,エロージョン ...
openaire   +2 more sources

Small RNA pathways in mammalian oocytes

open access: yesFEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Arterial Spin‐Labeling MRI at the Cortical‐CSF Interface: A Novel Biomarker in Alzheimer Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background/Objective Arterial spin‐labeling (ASL) MRI can measure perfusion signal adjacent to CSF spaces and may provide information regarding CSF‐adjacent water transport physiology. We developed an automated pipeline to extract cortical‐CSF interface (IF) perfusion for comparison between Alzheimer disease (AD) and cognitively normal ...
Mona Asghariahmadabad   +22 more
wiley   +1 more source

Analysis of Potential for Linear Erosion in the Cerrado Biome Using Morphopedology

open access: yesRevista Brasileira de Ciência do Solo
The Cerrado is a vegetation complex with a wide variety of phytophysiognomies, and sustainable management is essential for maintaining biodiversity. Morphopedology is a tool that can assist in developing plans for control of soil and land use, especially
Deyvid Diego Carvalho Maranhão   +5 more
doaj   +1 more source

Retractions in Rheumatology: Trends, Causes, and Implications for Research Integrity

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to describe the trends and main reasons for study retraction in rheumatology literature. Methods We reviewed the Retraction Watch database to identify retracted articles in rheumatology. We recorded the main study characteristics, authors’ countries, reasons for retraction, time from publication to retraction, and trends over time ...
Anna Maria Vettori, Michele Iudici
wiley   +1 more source

Trend Analysis of Rainfall Erosivity in Liaoning Province (2003-2022) using the Mann-Kendall Test [PDF]

open access: yesE3S Web of Conferences
To investigate the spatiotemporal dynamics of rainfall and its erosivity in Liaoning Province under a changing climate, this study utilized daily and monthly precipitation data from 2003 to 2022.
Han Yu, Zhao Lian
doaj   +1 more source

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