Results 31 to 40 of about 846,049 (222)

Long-term population trends of bird communities in artificially-protected wetlands of Northern Italy

open access: yesAvocetta
Artificial wetlands have become a common conservation approach to contrast the decline of biodiversity globally, as a result of the ongoing loss and fragmentation of natural habitats.
Stefano Borghi   +8 more
doaj   +1 more source

Coupling Remote Sensing With a Process Model for the Simulation of Rangeland Carbon Dynamics

open access: yesJournal of Advances in Modeling Earth Systems, Volume 17, Issue 3, March 2025.
Abstract Rangelands provide significant environmental benefits through many ecosystem services, which may include soil organic carbon (SOC) sequestration. However, quantifying SOC stocks and monitoring carbon (C) fluxes in rangelands are challenging due to the considerable spatial and temporal variability tied to rangeland C dynamics as well as limited
Yushu Xia   +33 more
wiley   +1 more source

Analog HfxZr1‐xO2 Memristors with Tunable Linearity for Implementation in a Self‐Organizing Map Neural Network

open access: yesAdvanced Electronic Materials, Volume 10, Issue 4, April 2024.
The amorphous Zr‐doped HfO2 memristors fabricated via the co‐sputtering approach exhibit improved switching performance by providing a controllable knob to modulate defects in the switching layer, satisfying the requirement for complementary‐metal‐oxide‐semiconductor back‐end‐of‐line (CMOS BEOL) integration.
Quanzhou Zhu   +13 more
wiley   +1 more source

Convex approximations for complete integer recourse models [PDF]

open access: yes, 2002
We consider convex approximations of the expected value function of a two-stage integer recourse problem. The convex approximations are obtained by perturbing the distribution of the random right-hand side vector.
Vlerk, Maarten H. van der   +2 more
core   +1 more source

Unmasked by Pregnancy: A Case of Latent Hypogammaglobulinemia with a Familial Link to CVID

open access: yesJournal of Human Immunity
IntroductionHypogammaglobinemia in pregnancy can be an expected physiological change, resulting from hemodilution and active transfer of immunoglobulins to the fetus via the placenta.
Ammarah Spall, Vincent Bonagura
doaj   +1 more source

Cardiovascular Simulation Cases for Dental Students

open access: yesMedEdPORTAL, 2009
Introduction Human patient simulation (HPS) exercises are now routinely used in medical school for teaching physiologic principles in a clinical context without patient risks. The use of HPS in dental education, however, is still exceedingly rare.
Kenneth Roos   +3 more
doaj   +1 more source

Danube sediment contamination with polychlorinated biphenyls: New interpretation of sediment quality assessment [PDF]

open access: yesActa Periodica Technologica, 2019
Among the contaminants of greatest concern, it is still possible to detect in aquatic systems "old" classics such as polychlorinated biphenyls (PCBs).
Brborić Maja   +3 more
doaj   +1 more source

Lyn governs the establishment and maintenance of B cell anergy by suppressing PI3K signaling

open access: yesNature Communications
The Src family kinase Lyn is known to be involved in the induction and maintenance of peripheral B cell tolerance; however, mechanistic separation of tolerogenic functions from the role of Lyn in B cell and myeloid cell development and activation is ...
Brigita E. Fiske   +3 more
doaj   +1 more source

Characterizing Co-movements between Indian and Emerging Asian Equity Markets through Wavelet Multi-Scale Analysis

open access: yesEast Asian Economic Review, 2015
Multi-scale representations are effective in characterising the time-frequency characteristics of financial return series. They have the capability to reveal the properties not evident with typical time domain analysis.
Aasif Shah   +2 more
doaj   +1 more source

Estimation de la densité d'une population localisée de Glossina pallidipes en Somalie

open access: yesRevue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1983
Des captures continues de Glossina pallidipes ont été effectuées sur 1,2 ha le long de la rivière Shebeli, en Somalie, au moyen de pièges biconiques. La densité relative (D.R.), représentée par le nombre de mouches capturées par un piège en un jour, a ...
L. Ryan, M. Abdillahi, M.H.H. Ali
doaj   +1 more source

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