Results 141 to 150 of about 1,181,495 (342)

Host, vector, and parasite dynamics: exploring intrinsic and extrinsic factors shaping tick‐borne filarial nematode transmission

open access: yesBiological Reviews, EarlyView.
ABSTRACT Tick‐borne filarial nematodes are a complex and understudied group of parasites that rely on ticks for transmission in vertebrates. This review examines how intrinsic and extrinsic factors may influence the successful transmission of filarial nematodes in tick vectors, drawing insights from extensively studied haematophagous dipteran vector ...
Oluwaseun D. Ajileye   +4 more
wiley   +1 more source

Eco-physiological variations in three Mediterranean coppices along an altitudinal gradient

open access: yesForest@, 2007
Water uptake ability and water-use efficiency (WUE) were indirectly measured utilizing hydrogen and carbon stable isotopes on Mediterranean coppices along an altitudinal gradient.
De Angelis P   +2 more
doaj  

Elevated Hemoglobin Levels and Risk of ST‐Segment Elevation Myocardial Infarction in High‐Altitude Acute Coronary Syndrome: A Retrospective Analysis

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background High‐altitude populations typically exhibit elevated hemoglobin (Hb) levels due to chronic hypoxic exposure; however, the impact of this elevation on the risk of ST‐segment elevation myocardial infarction (STEMI) remains unclear. Existing evidence is primarily derived from low‐altitude populations and cannot be directly extrapolated
Jing Li   +10 more
wiley   +1 more source

Variation patterns in foliar δ13C and δ15N among plant life types along an altitudinal gradient on the Tibetan Plateau

open access: yesGlobal Ecology and Conservation
Understanding how foliar δ13C and δ15N vary with the environment is crucial for elucidating the carbon and nitrogen cycle dynamics within ecosystems.
Ribu Shama   +8 more
doaj   +1 more source

Mid‐Infrared Spectroscopy and Machine Learning for Chlorogenic Acid Quantification in Coffee

open access: yesChemie Ingenieur Technik, EarlyView.
Chlorogenic acid (CGA) concentration in coffee was predicted using mid‐infrared (MIR) spectroscopy and a machine learning approach. Forty‐four roasting stages (140–220 °C) plus a green coffee control were analyzed. A multilayer perceptron regressor, trained on preprocessed MIR data, outperformed traditional peak analysis, enabling accurate and ...
Deborah Herdt   +6 more
wiley   +1 more source

The BIOKLIM project: biodiversity research between climate change and wilding in a temperate montane forest : the conceptual framework [PDF]

open access: yes, 2010
To understand the rapid rate of change in global biodiversity, it is necessary to analyse the present condition of ecosystems and to elucidate relationships of species to their environment. The BIOKLIM Project (Biodiversity and Climate Change Project) is
Bässler, Claus   +3 more
core  

Microbial assemblies associated with temperature sensitivity of soil respiration along an altitudinal gradient.

open access: yesScience of the Total Environment, 2022
X. Zeng   +10 more
semanticscholar   +1 more source

Patterns and drivers of fungal diversity along an altitudinal gradient on Mount Gongga, China

open access: yesJournal of Soils and Sediments, 2017
PurposeFungi are essential components of soil microbial communities and have a crucial role in biogeochemical processes. Alpine regions are sensitive to climate change, and the importance of changes in fungal community composition along altitudinal ...
Jianqing Tian   +5 more
semanticscholar   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

open access: yesDeep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang   +4 more
wiley   +1 more source

Sun exposure drives Antarctic cryptoendolithic community structure and composition [PDF]

open access: yes, 2019
The harsh environmental conditions of the ice-free regions of Continental Antarctica are considered one of the closest Martian analogues on Earth. There, rocks play a pivotal role as substratum for life and endolithism represents a primary habitat for ...
Coleine, Claudia   +4 more
core  

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