Results 81 to 90 of about 7,516,074 (182)

Introducing Variable Stars Without Using Sophisticated Technology

open access: yes, 2006
Photographs of TV Cas and U Cep taken by students equipped with conventional cameras and mobile, self-made mountings are used to introduce variable stars and, in particular, eclipsing binaries.
Kohl, Michael
core  

Nova-like variables [PDF]

open access: yes, 1993
On grounds of different observable characteristics five classes of nova-like objects are distinguished: the UX Ursae Majoris stars, the antidwarf novae, the DQ Herculis stars, the AM Herculis stars, and the AM Canum Venaticorum stars.
Ladous, Constanze
core  

Spontaneous Cyclic Levitation of Glycerol‐Water Droplets at Low Pressures

open access: yesAdvanced Science, EarlyView.
Under low pressure, a minute glycerol addition transforms the chaotic dynamics of freezing water droplets into cyclic levitation. Freeze‐concentration preserves liquid pathways that relax expansion‐induced stress, while freezing point depression weakens asymmetric vaporization recoil.
Chen Xu   +10 more
wiley   +1 more source

Unveiling the Interfacial Dynamics of Crosslinked Biodegradable Polycaprolactone Solid Polymer Electrolytes and Li Metal During Lithium Plating and Stripping via Operando ATR‐FTIR Spectroscopy

open access: yesAdvanced Science, EarlyView.
This study presents a comprehensive interfacial characterization of the biodegradable PCL solid‐polymer electrolytes (SPEs) with Li metal, utilizing an advanced operando ATR‐FTIR spectroscopy. The investigation elucidates the interphase properties during Li plating/stripping in a zero‐excess cell configuration.
Jian‐Fen Wang   +5 more
wiley   +1 more source

One‐Step Synthesis of Size‐Controlled Copper Oxide Nanoparticles on Laser‐Induced Graphene Sensor for L‐Cysteine Detection

open access: yesAdvanced Electronic Materials, EarlyView.
Oxygen plasma treatment enhances polyimide hydrophilicity and promotes uniform anchoring of copper ion precursors. A one‐step laser process then generates CuO‐decorated nanoparticles on laser‐induced graphene (LIG) electrodes, enabling controlled nanoparticle growth via precursor concentration tuning.
Gustavo Miguel Sousa   +6 more
wiley   +1 more source

EUVE J0854+390: a new Cataclysmic Variable [PDF]

open access: yes, 2001
We report the identification of a new CV in the field of EUVE J0854+390. The optical spectra show Balmer, He I and He II lines strongly in emission and indicates the source is a CV, probably magnetic.Information Bulletin on Variable Stars 5032(1).
B. Roberts   +3 more
core  

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd   +5 more
wiley   +1 more source

Presumptive Coverage Policies and Workers’ Compensation of Post‐Traumatic Stress Disorder and Other Mental Health Conditions: A Retrospective Time‐Series Study in Canada 2001–2019

open access: yesAmerican Journal of Industrial Medicine, EarlyView.
ABSTRACT Background The impact of presumptive coverage policies for work‐related mental health disorders has not been extensively studied to date. Using data from the Association of Workers’ Compensation Boards of Canada (AWCBC), our objectives were to describe the evolution of compensated mental health conditions, and to explore the association ...
Quentin Durand‐Moreau   +3 more
wiley   +1 more source

Heterozygous Variants in LRP1 Cause a Neurodevelopmental Disorder With Congenital Heart Defects

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT LRP1 encodes the low‐density lipoprotein (LDL) receptor‐related protein 1 (LRP1), a transmembrane protein involved in endocytosis and activation of multiple signaling pathways. LRP1 variants have been implicated in the pathogenesis of congenital heart defects (CHD), Alzheimer's disease, and neurodevelopmental disorders (NDD).
Alyssa L. Rippert   +31 more
wiley   +1 more source

Integrating Genetic Modifier Genotype With Serum Proteomics in Duchenne Muscular Dystrophy Clinical Trials Links LTBP4 Genetic Modifier to IL‐23/CD93 Pathways in Muscle

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Genetic modifiers of Duchenne muscular dystrophy (DMD) that alter disease severity or response to therapy have been reported using natural history or registry data sets of older corticosteroid‐treated patients. We tested associations of genetic modifiers on motor function outcomes in young (4 to < 7 years) steroid naïve clinical trial ...
Utkarsh J. Dang   +16 more
wiley   +1 more source

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