Results 71 to 80 of about 429,869 (239)

Laboratory rotational ground state transitions of NH$_3$D$^+$ and CF$^+$ [PDF]

open access: yes, 2016
Aims. This paper reports accurate laboratory frequencies of the rotational ground state transitions of two astronomically relevant molecular ions, NH3D+ and CF+. Methods. Spectra in the millimeter-wave band were recorded by the method of rotational state-
Brünken, Sandra   +3 more
core   +2 more sources

Higher complement C4 gene copy number constitutes a shared genetic risk factor for giant cell arteritis and IgA vasculitis

open access: yesArthritis &Rheumatology, Accepted Article.
Objective Low copy number (CN) of complement C4 isoforms and high CN of retroviral HERV‐K elements are known risk factors for many immune‐mediated inflammatory diseases (IMIDs), often showing sex‐biased effects. Here, we assessed whether CN variation within the C4 gene contributes to giant cell arteritis (GCA) and IgA vasculitis (IgAV), two complex ...
Laura Martínez‐Gutiérrez   +296 more
wiley   +1 more source

On the boundedness of some nonlinear differential equation of second order [PDF]

open access: yes, 2015
In this paper we study the boundedness of the solutions of some nonlinear dofferential equation using as a key tool the Second Lyapunov method, i.e. find sufficient conditions under which the solutions of this equation are bounded.
Guzmán, Paulo Matias   +2 more
core  

Chemical complexity in the Horsehead photodissociation region

open access: yes, 2014
The interstellar medium is known to be chemically complex. Organic molecules with up to 11 atoms have been detected in the interstellar medium, and are believed to be formed on the ices around dust grains.
Bourlot, Jacques Le   +7 more
core   +3 more sources

The paper puzzle as an active learning tool in the teaching of anatomy: A qualitative study of perceptions in students and near‐peer teachers

open access: yesAnatomical Sciences Education, EarlyView.
Abstract Active learning strategies enhance medical education by fostering self‐directed learning, communication, and problem‐solving skills. The paper puzzle, a game‐based learning approach, provides an engaging way to reinforce anatomical knowledge and promote collaboration.
Ricardo Tello‐Mendoza   +6 more
wiley   +1 more source

Haciendo economías alternativas en un entorno mercantilizado. El tianguis Pochtecatl en Jalisco, México

open access: yesIztapalapa, 2023
La globalización de los mercados y los gobiernos neoliberales han provocado la pauperización en las condiciones de vida de las clases trabajadoras y los grupos populares. En ese contexto resurgen las iniciativas de economías alternativas a la de mercado,
Alejandro Macías Macías   +1 more
doaj  

Sacks Forcing and the Shrink Wrapping Property

open access: yes, 2019
We consider a property stronger than the Sacks property, called the shrink wrapping property, which holds between the ground model and each Sacks forcing extension.
González, Osvaldo Guzmán   +1 more
core   +1 more source

The Role of Microbiota Metabolites Propionic Acid, p‐Cresol, and 4‐Ethylphenyl Sulfate in Autism Susceptibility: A Systematic Review

open access: yesAutism Research, EarlyView.
ABSTRACT The etiopathogenesis of Autism Spectrum Disorder (ASD) encompasses complex interactions between genetic and environmental risk factors. The high prevalence of gastrointestinal disorders in autistic individuals has propelled a growing interest in the possible involvement of gut dysbiosis in ASD pathogenesis.
Laura Sandoni   +6 more
wiley   +1 more source

Determining kinetic constants and transport efficiencies at membrane interfaces to optimize the removal/recovery of Cu(II) through lulk liquid membranes containing benzoylacetone as carrier [PDF]

open access: yes, 2017
The removal, separation, and enrichment of heavy metals in aqueous solutions has become a prime concern over the last few decades because of both their adverse effects on the ecosystem and living organisms and their valuable resource character.
Gómez Gómez, Elisa   +4 more
core   +2 more sources

RETRACTED: Learner emotions and performance in hypercasual VR games with adaptive AI difficulty

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Hypercasual virtual reality games (HVRGs) are widely regarded as cost‐effective tools for rapid skill acquisition, yet the mechanisms that optimise their effectiveness and user acceptance remain insufficiently explored. This mixed‐methods empirical study investigates how playful emotions, characterised by engagement, enjoyment and anxiety ...
Zeeshan Ahmed, Faizan Ahmad, Chen Hui
wiley   +1 more source

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