Results 21 to 30 of about 4,697,954 (305)

Natural Selection: Sign, Sign, Everywhere a Sign [PDF]

open access: yesCurrent Biology, 2004
Natural selection is an important factor influencing variation in the human genome, but most genetic studies of natural selection have focused on variants with unknown phenotypic associations. This trend is changing. New studies are rapidly revealing the effects of natural selection on genetic variants of known or likely functional importance.
openaire   +2 more sources

Du sens à l’action, de l’anasémiose à la catasémiose

open access: yesCorela, 2017
The present paper is part of a larger project, whose ambition is to clarify the natural foundations of a theory of meaning. In such a theory, two separate processes are to be distinguished: anasemiosis and catasemiosis.
Groupe µ   +2 more
doaj   +1 more source

Indirect Signs of the Peccei-Quinn Mechanism [PDF]

open access: yes, 2018
In the Standard Model, the renormalization of the QCD vacuum angle $\theta$ is extremely tiny, and small $\theta$ is technically natural. In the general Standard Model effective field theory (SMEFT), however, $\Delta\theta$ is quadratically divergent ...
de Vries, Jordy   +4 more
core   +2 more sources

Digital Media as a New Means of Mediation (Part One)

open access: yesКультурно-историческая психология, 2019
The article begins the cycle “Digital media as a new means of mediation”. “Digitalization” is interpreted as a challenge to contemporary psychology in general and cultural-historical theory in particular.
Rubtsova O.V.,
doaj   +1 more source

Emergency: a theoretical analysis in domestic and foreign science

open access: yesВестник Северо-Кавказского федерального университета, 2022
The focus of this article is on the theoretical analysis of the concepts developed by Russian and foreign scientists regarding emergencies. When analyzing the concepts of emergencies the author defines its components that make it a social category. There
I. A. Gorbushina
doaj  

Clinical signs and symptoms associated with WHO severe dengue classification: a systematic review and meta-analysis

open access: yesEmerging Microbes and Infections, 2021
The World Health Organization (WHO) introduced the new dengue classification in 2009. We aimed to assess the association of clinical signs and symptoms with WHO severe dengue classification in clinical practice.
Tha Pyai Htun   +2 more
doaj   +1 more source

Imaging signs in idiopathic intracranial hypertension: Are these signs seen in secondary intracranial hypertension too?

open access: yesAnnals of Indian Academy of Neurology, 2013
Background: The purpose of this study was to evaluate the difference in the occurrence of the various "traditional" imaging signs of intracranial hypertension (IIH) on magnetic resonance imaging (MRI) in patients with idiopathic (IIH) and secondary ...
Divyata R Hingwala   +4 more
doaj   +1 more source

Signs of the cusps in binary lenses [PDF]

open access: yes, 2000
The cusps of the caustics of any gravitational lens model can be classified into positive and negative ones. This distinction lies on the parity of the images involved in the creation/destruction of pairs occurring when a source crosses a caustic in a ...
Bozza, Valerio
core   +2 more sources

Evaluating the effects of bilingual traffic signs on driver performance and safety [PDF]

open access: yes, 2005
Variable Message Signs (VMS) can provide immediate and relevant information to road users and bilingual VMS can provide great flexibility in countries where a significant proportion of the population speak an alternative language to the majority.
A. H. Jamson   +32 more
core   +1 more source

The mental health of elite athletes in the United Kingdom [PDF]

open access: yes, 2018
Objectives: The purpose of this study was to investigate the prevalence of signs of anxiety/depression and distress among a sample of elite athletes in the United Kingdom (UK).
Fockett, Ryan, Longstaff, Frances
core   +2 more sources

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