Results 81 to 90 of about 34,526 (238)

New insights into the putative XX/XY sex chromosomal system in blue‐eyed red‐fin pleco Hypostomus soniae (Siluriformes, Loricariidae)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Blue‐eyed red‐fin pleco Hypostomus soniae (family Loricariidae) presented a putative sex system XX/XY in early stage. Aiming to explore the inter‐populational karyotypic variation and proposed emergence of the XX/XY system, we studied 13 H. soniae individuals (6 males, 7 females) from the Tapajós River.
Luan Aércio Melo Maciel   +6 more
wiley   +1 more source

Friction welding of small-diameter fittings and nozzles of 22K carbon steel

open access: yesAdvanced Engineering Research, 2017
Introduction. The pilot study method and development of technological recommendations on friction welding (FW) of fittings and nozzles of small (up to 80 mm) diameter for welded constructions of the thermal and atomic engineering are described.
Yury V. Poletaev   +2 more
doaj   +1 more source

Electrochemical behavior of Sn-Zn alloys with different grain structures in chloride-containing solutions [PDF]

open access: yes, 2017
In the present research the electrochemical behavior of the Sn-Zn alloys (Sn-1 wt.%Zn, Sn-4 wt.%Zn and 8.9 wt.%Zn) in 3% NaCl solution is analyzed using potentiodynamic cyclic polarization measurements and Electrochemical Impedance Spectroscopy (EIS ...
Ares, Alicia Esther   +4 more
core   +1 more source

The dynamics of cyclic‐periodic phenomena during non‐rapid and rapid eye movement sleep

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is a complex physiological state characterized by distinct stages, each exhibiting unique electroencephalographic patterns and physiological phenomena. Sleep research has unveiled the presence of intricate cyclic‐periodic phenomena during both non‐rapid eye movement and rapid eye movement sleep stages. These phenomena encompass a spectrum
Maria P. Mogavero   +5 more
wiley   +1 more source

The Geology as an indispensable tool for optimizing the exploration of dimension Stones [PDF]

open access: yes, 2012
Like any Geological Resource, the Dimension Stones can only be exploited where they occur. How they occur is a reflection of geological history that presided over its formation.
Lopes, Luís
core  

The Effect of Closed‐Loop Auditory Stimulation on Memory Consolidation and Sleep Physiology in an Ecological Setting

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Slow wave sleep plays a crucial role in overnight memory consolidation, with slow oscillations serving as a critical mechanism. Recent studies have identified closed‐loop auditory stimulation as an effective method to enhance slow oscillatory activity during slow wave sleep, thereby facilitating memory consolidation.
Angie Baldassarri   +6 more
wiley   +1 more source

Macrostructures and rhetorical moves in research articles in nanotechnology

open access: yesFrontiers in Psychology
IntroductionNotwithstanding the fact that extensive studies focused on exploring generic structures in established disciplines, scant attention has been directed to macrostructures and rhetorical moves in RAs in some emerging disciplines.MethodsBased on ...
Xianqing Luo, Jiajie Ji
doaj   +1 more source

Learning strategies in interpreting text: From comprehension to illustration [PDF]

open access: yes, 2008
Learning strategies can be described as behaviours and thoughts a learner engages in during learning that are aimed at gaining knowledge. Learners are, to use Mayer’s (1996) constructivist definition, ‘sense makers’.
McAuley, Mike
core  

Sleep Macrostructure, Cyclic Alternating Pattern and CSF Cytokines in De Novo Relapsing–Remitting Multiple Sclerosis: A Controlled Polysomnographic Study

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Multiple sclerosis is frequently associated with sleep disorders. This study aimed to evaluate subjective and objective sleep parameters in de novo relapsing–remitting multiple sclerosis patients compared to healthy controls and to explore correlations with cerebrospinal fluid cytokines.
A. Romigi   +10 more
wiley   +1 more source

The Potential of Ensemble‐Based Automated Sleep Staging on Single‐Channel EEG Signal From a Wearable Device

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Machine‐learning‐based sleep staging models have achieved expert‐level performance on standard polysomnographic (PSG) data. However, their application to EEG recorded by wearable devices remains limited by non‐conventional referencing montage and the lack of benchmarking against PSG.
Federico Salfi   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy