Results 31 to 40 of about 1,308 (261)
[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
Small RNA pathways in mammalian oocytes
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
ABSTRACT Objective Cognitive decline is a disabling and variable feature of Parkinson disease (PD). While cholinergic system degeneration is linked to cognitive impairments in PD, most prior research reported cross‐sectional associations. We aimed to fill this gap by investigating whether baseline regional cerebral vesicular acetylcholine transporter ...
Taylor Brown +6 more
wiley +1 more source
Spatial and Temporal Patterns of Rainfall Erosivity in Southern Africa in Extreme Wet and Dry Years
Soil erosivity is a key indicator of the effectiveness of precipitation acting on the land’s surface and is mainly controlled by event-scale and seasonal weather and climatic factors but is also influenced by the nature of the land’s surface, including ...
Jasper Knight, Mohamed A. M. Abd Elbasit
doaj +1 more source
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
Retractions in Rheumatology: Trends, Causes, and Implications for Research Integrity
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
Spatial and Temporal Variability of Rainfall Erosivity in the Niyang River Basin
Rainfall erosivity is a crucial factor in the evaluation of soil erosion, significantly influencing the complex relationships among water, soil, and the environment. Understanding its attributes and variations in space and time is essential for effective
Qingqin Bai, Lei Wang, Yangzong Cidan
doaj +1 more source
Objective Frailty occurs prematurely in rheumatoid arthritis (RA) and is associated with poor health outcomes. We compared the performance of four frailty instruments, including a pragmatic alternative measure using chair sit‐to‐stand (STS), and evaluated their abilities to predict poor health outcomes.
Kylie E. Riggles +14 more
wiley +1 more source
The Poechos Reservoir, which began operations in 1976 with an initial water storage capacity of 885 hm3, has undergone severe sedimentation. By 2018, bathymetric surveys from the Chira–Piura Special Project (PEChP), the institution responsible for its ...
Maria S. Dunin-Borkowski +4 more
doaj +1 more source

