Results 31 to 40 of about 5,503,777 (240)

Magnitude and frequency of debris and slush flows in the Khibiny mountain valleys, Kola Peninsula, NW Russia [PDF]

open access: yesProceedings of the International Association of Hydrological Sciences, 2019
Available results for five studied valleys of the Khibiny Mountains, Kola Peninsula, suggest that slush flows and, possibly for some valleys, typical debris flows with lower frequency, are a leading mechanism for downstream sediment delivery and valley ...
E. V. Garankina   +6 more
doaj   +1 more source

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

Estimation of soil redistribution rates due to snow cover related processes in a mountainous area (Valle d'Aosta, NW Italy) [PDF]

open access: yes, 2012
Mountain areas are widely affected by soil erosion, which is generally linked to runoff processes occurring in the growing season and snowmelt period.
Alewell, Christine   +11 more
core   +2 more sources

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

Escoamento superficial e desagregação do solo em entressulcos em solo franco-argilo-arenoso com resíduos vegetais Interrill surface runoff and soil detachment on a sandy clay loam soil with residue cover

open access: yesPesquisa Agropecuária Brasileira, 2004
A presença de resíduos vegetais sobre a superfície do solo altera as características do escoamento superficial gerado pela chuva e a desagregação e transporte de sedimento resultantes do processo erosivo.
Elemar Antonino Cassol   +3 more
doaj   +1 more source

Modeling of erosion processes in open channels

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2022
Objective. The aim of the study is to model erosion processes in open channels.Method. A stochastic approach is applied to the calculation of parameters and the construction of models of individual stages of the erosion process: disruption, weighing and ...
M. R. Magomedova
doaj   +1 more source

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp   +4 more
wiley   +1 more source

An Approach to Assess Land Stability and Erosion on Mined Landforms

open access: yesMining
Where mining activities cause disturbance in catchments, streams are often impacted by heavy loads of fine eroded material. Since geomorphological processes are very slow, it is expected that during rehabilitation, typically hundreds of years are ...
Devika Nair   +2 more
doaj   +1 more source

Rainfall aggressiveness as a determining factor of erosion processes. Case Study: Calintir River Basin (Republic of Moldova) [PDF]

open access: yesPresent Environment and Sustainable Development
The climatic factor is of particular interest in the evaluation of erosion processes. The spatial and temporal distribution of rainfall is actually a key factor for erosion processes.
Angela CANȚÎR, Aliona BOTNARI
doaj   +1 more source

Soil Erosion and Controls in the Slope-Gully System of the Loess Plateau of China: A Review

open access: yesFrontiers in Environmental Science, 2021
The Loess Plateau has long been suffering from serious soil erosion of which erosion from the slope-gully system is now dominant. The slope-gully system is characterized with distinctive erosion distribution zones consisting of inner and inter gully ...
Bingbing Zhu, Zhengchao Zhou, Zhanbin Li
doaj   +1 more source

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