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Now showing items 4231-4240 of 24368
Divergent changes of the elevational synchronicity in vegetation spring phenology in North China from 2001 to 2017 in connection with variations in chilling
(
Royal Meteorological Society
, 2021 , Article)
Mountain ecosystems are sensitive to climate change, and vegetation phenology provides one of the best signals to exemplify ecosystem responses to climate change. Vegetation phenology of mountain ecosystems is usually ...
Investigations of plastic contamination of seawater, marine and coastal sediments in the Russian seas: a review
(
Springer
, 2021 , Article)
Twelve seas with an integral coastline length of about 38,000 km wash upon the Russian coasts. They belong to the basins of the Atlantic, the Arctic, and the Pacific Oceans and stretch over temperate, subpolar, and polar ...
Influence of changing casing groove parameters on the performance of centrifugal compressors near stall condition
(
American Society of Mechanical Engineers (ASME)
, 2016 , Article)
The casing treatment is an effective method for increasing the stall margin of compressors and enhancing the flow distribution at the blades tip. The present numerical study focuses on making an optimization of the casing ...
Inter-annual variability and distribution of aerosols during winters and aerosol optical thickness over Northeastern Pakistan
(
Springer
, 2020 , Article)
ir pollution during winters over north-eastern (NE) Pakistan (71–74.5 E, 28–34 N) is a major challenge that affects human health, climate and daily life. In this article, distribution of aerosols and its optical properties ...
Comparisons of standby and parallel systems in reliability, replacement, scheduling and application
(
SAGE Publications Ltd
, 2016 , Article)
This paper compares the standby and parallel systems through the following analyses: reliability measures such as reliabilities, mean times to failure, and failure rates are first compared. These comparisons are reconsidered ...
Metabolic reprogramming of T regulatory cells in the hypoxic tumor microenvironment.
(
Springer
, 2021 , Article)
Metabolic dysregulation in the hypoxic tumor microenvironment (TME) is considered as a hallmark of solid tumors, leading to changes in biosynthetic pathways favoring onset, survival and proliferation of malignant cells. ...
Reinforcement learning-based decision support system for COVID-19
(
Elsevier
, 2021 , Article)
Globally, informed decision on the most effective set of restrictions for the containment of COVID-19 has been the subject of intense debates. There is a significant need for a structured dynamic framework to model and ...
Formation and weathering assessment of oil-suspended sediment aggregates through a laboratory investigation.
(
Springer
, 2021 , Article)
Formation of oil-suspended sediment aggregates (OSAs) is believed to be one of the natural cleaning processes in the marine environment. In this study, we have investigated the formation processes of OSAs under different ...
Substantial cell apoptosis provoked by naked PAMAM dendrimers in HER2-positive human breast cancer via JNK and ERK1/ERK2 signalling pathways
(
Elsevier
, 2021 , Article)
HER2-positive breast cancer is one of its most challenging subtypes, forming around 15–25% of the total cases. It is characterized by aggressive behavior and treatment resistance. On the other hand, poly (amidoamine) (PAMAM) ...
Impact of SARS-CoV-2 on Ambient Air Quality in Northwest China (NWC)
(
MDPI
, 2021 , Article)
SARS-CoV-2 was discovered in Wuhan (Hubei) in late 2019 and covered the globe by March 2020. To prevent the spread of the SARS-CoV-2 outbreak, China imposed a countrywide lockdown that significantly improved the air quality. ...