Results 111 to 120 of about 36,975 (307)

The 9+ month marathon: How pregnancy may have shaped human endurance capacities

open access: yesThe Anatomical Record, EarlyView.
Abstract Anthropology has long considered the evolution of our uniquely human endurance capacities to be the result of selection upon anatomical and physiological features imposed by the demands of thermoregulation and resource acquisition, particularly during the demands of persistence hunting. Research has focused on the anatomical changes present in
Cara Ocobock
wiley   +1 more source

Paediatric development of radiopharmaceutical imaging agents and radioligand therapeutics

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Abstract This review focuses on the development of radiopharmaceutical imaging agents and radioligand therapeutics for paediatric use. Nuclear medicine plays an important role in the diagnosis and treatment of various childhood conditions, including cancers, infections and brain disorders.
Justin L. Hay   +5 more
wiley   +1 more source

Is the Elapsed Time following the Placement of a Ventriculoperitoneal Shunt Catheter an Individual Risk Factor for Shunt Fractures?

open access: yes, 2012
In this study, we examined whether the resistance of peritoneal catheters against the retraction force changed over time following shunt placement, and the role of this resistance in shunt fracture is discussed.
Cakin, Hakan   +5 more
core   +1 more source

Experimental analysis of the effects of potential-induced degradation on photovoltaic module performance parameters

open access: yesElectrical engineering & Electromechanics
Introduction. Photovoltaic (PV) power plants are subject to various forms of degradation that can impair their performance and lead to significant faults within PV systems.
Z. Khammassi, H. Khaterchi, A. Zaafouri
doaj   +1 more source

Piezoelectric Shunt Stiffness in Rhombic Piezoelectric Stack Transducer with Hybrid Negative-Impedance Shunts: Theoretical Modeling and Stability Analysis

open access: yesSensors, 2019
Negative-capacitance shunted piezoelectric polymer was investigated in depth due to its considerable damping effect. This paper discusses the novel controlled stiffness performance from a rhombic piezoelectric stack transducer with three hybrid negative ...
Leiying He   +3 more
doaj   +1 more source

Carbon Quantum Dots Meet Perovskite Solar Cells: A Review of Multifunctional Synergies

open access: yesCarbon Energy, EarlyView.
This review highlights the multifunctional role of carbon dots in perovskite solar cells. Their applications as additives and interfacial modifiers are discussed in terms of crystallization control, defect passivation, energy‐level alignment, and environmental stability.
Yagmur Su Sayin   +3 more
wiley   +1 more source

Structure‐Function Tailoring of Plasmonic Nanomaterials for Thin‐Film Photovoltaics

open access: yesCarbon Energy, EarlyView.
This review discusses the mechanisms and recent advancements of plasmonics in achieving effective light management to enhance the performance of thin‐film solar cells. It highlights applications in high‐performance perovskite solar cells and future‐oriented tandem solar cells.
Sen Jiang   +14 more
wiley   +1 more source

Evaluation of Shunt Distance in Resistance Spot Welding

open access: yes, 2020
The purpose of this study was to generate a greater understanding of how the shunt distance affects the shunting phenomena which occurs when working with resistance spot welding (RSW).
Carlfors Göransson, Milou   +1 more
core  

Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells

open access: yesCarbon Energy, EarlyView.
This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood   +16 more
wiley   +1 more source

953-38 Role of Nitric Oxide (EDRF/NO) in the Control of Pulmonary Vascular Resistance in Conscious Dogs with a Blalock-Taussig Shunt

open access: yes, 1995
The mechanism for preservation of normal pulmonary artery pressure in the presence of increased pulmonary blood flow is unknown. We hypothesized that NO/EDRF (through an increase in blood flow) is responsible for the low pulmonary vascular resistance ...
Gersony, Welton   +5 more
core   +1 more source

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