Results 101 to 110 of about 586,857 (269)

Huddling Conserves Energy, Decreases Core Body Temperature, but Increases Activity in Brandt's Voles (Lasiopodomys brandtii)

open access: yesFrontiers in Physiology, 2018
Huddling as social thermoregulatory behavior is commonly used by small mammals to reduce heat loss and energy expenditure in the cold. Our study aimed to determine the effect of huddling behavior on energy conservation, thermogenesis, core body ...
Gansukh Sukhchuluun   +6 more
doaj   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Alcohol‐Adduct Mediated Precursor Stabilization Strategies for Conformal SnO2 Layers in Highly Efficient and Stable Perovskite Solar Modules

open access: yesAdvanced Energy Materials, EarlyView.
An alcohol‐adduct‐mediated strategy is employed to stabilize tin isopropoxide for the formation of a homogeneous double electron transport layer (ETL) incorporating SnO2 nanoparticles (NPs). This double‐ETL exhibits improved optical and charge‐transport properties due to reduced defect density and better energy level alignment, resulting in high ...
You‐Hyun Seo   +10 more
wiley   +1 more source

Self‐Activating Electrocatalysts for Water Splitting: Advancing Structure–Performance Understanding and Beyond

open access: yesAdvanced Energy Materials, EarlyView.
Self‐activating electrocatalysts offer strong potential for advanced water splitting, enabled by their dynamic compositional and structural evolution during operation. This review highlights recent advances in self‐activating OER and HER catalysts, emphasizing the driving forces and mechanisms underlying their adaptive behavior. A conceptual network of
Christean Nickel   +6 more
wiley   +1 more source

Elective cesarean preserves maternal–fetal redox homeostasis, whereas emergency cesarean disrupts it: a prospective observational study

open access: yesThe Journal of Maternal-Fetal & Neonatal Medicine
Introduction Oxidative stress is a key component of maternal–fetal physiology and varies with the mode of delivery. Labor induces hypoxia–reoxygenation cycles that elevate reactive oxygen species, whereas elective cesarean section (CS) occurs in a ...
Gökçenur Karakelleoğlu   +2 more
doaj   +1 more source

Flecting Osteotomy of the Distal Tibia for Salvage of an Asymmetric Osteoarthritic Ankle Joint

open access: yesFoot & Ankle Orthopaedics, 2018
Category: Ankle Arthritis Introduction/Purpose: Deformity of the distal tibia in the sagittal plane with increased posterior tilt of the articular surface (recurvatum deformity) results in altered biomechanics and high contact pressure in the anterior ...
Beat Hintermann MD   +3 more
doaj   +1 more source

Disorder‐Driven Fast Na+ Transport: From Crystalline to Amorphous Networks in the Mixed‐Anion NaTaOxCl6−2x Oxychlorides

open access: yesAdvanced Energy Materials, EarlyView.
Oxygen substitution in NaTaOxCl6‐2x drives structural evolution from isolated [TaCl6]– octahedra, through oxygen‐bridged [Ta2OCl10]2– dimers, toward extended trans‐[TaO2Cl4]3– chain‐like arrangements. At intermediate compositions, zero‐dimensional corner‐sharing motifs are proposed to create a flexible, disordered framework that peaks ionic ...
Justin Leifeld   +17 more
wiley   +1 more source

Complications, Reoperations, and Postoperative Outcomes of Simultaneous Supramalleolar Osteotomy and Total Ankle Replacement in Misaligned Osteoarthritic Ankles in Comparison to Total Ankle Replacement Alone

open access: yesFoot & Ankle Orthopaedics, 2018
Category: Ankle Arthritis Introduction/Purpose: A key for success in total ankle replacement (TAR) is a balanced ankle joint with a physiological loading of the implant, minimizing the wear of the polyethylene insert. Theoretically, in ankles with distal
Anne-Constance Franz MD   +4 more
doaj   +1 more source

Cerebrospinal Fluid Amyloid‐β Biomarkers Predict Future Hemorrhage in Patients with Cerebral Amyloid Angiopathy

open access: yesAnnals of Neurology, EarlyView.
Objective Accurately predicting future hemorrhagic events in patients with cerebral amyloid angiopathy (CAA) remains a major clinical challenge. It is unknown whether cerebrospinal fluid (CSF) biomarkers of amyloid‐beta (Aβ) pathology are associated with increased hemorrhage risk in this population.
Philipp Arndt   +15 more
wiley   +1 more source

Autoantibodies to Joint‐Related Peptides Are Associated with Onset of Rheumatoid Arthritis in Presymptomatic Seronegative Individuals

open access: yesArthritis &Rheumatology, Accepted Article.
Objective To identify autoantibodies in presymptomatic individuals that associate with the onset of rheumatoid arthritis (RA), and to distinguish early RA from osteoarthritis (OA), particularly in individuals lacking classic RA serological markers. Methods We analyzed serum and plasma from three cohorts: pre‐symptomatic individuals who later developed ...
Outi Sareila   +12 more
wiley   +1 more source

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