Results 51 to 60 of about 1,352,947 (309)

Transforming growth factor beta-1 decreases the yield of the second meiotic division of rat pachytene spermatocytes in vitro

open access: yesReproductive Biology and Endocrinology, 2005
Background TGF beta and its receptors are present in both germ cells and somatic cells of the male gonad. However, knock-out strategies for studying spermatogenesis regulation by TGF beta have been disappointing since TGF beta-or TGF beta receptor-null ...
Sabido Odile   +4 more
doaj   +1 more source

Two phenomena: Honji instability, and ringing of offshore structures [PDF]

open access: yes, 2005
Honji instability and ringing of offshore structrures are two different phenomena. Honji instability occurs at a circular cylinder in transverse periodic finite motion in a water tank.
Grue, J.
core   +4 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Wavelet Coherence Analysis of Plasma Beta, Alfven Mach Number, and Magnetosonic Mach Number during Different Geomagnetic Storms

open access: yesThe Scientific World Journal
We study the variation in plasma beta, Alfven Mach number, and magnetosonic Mach number during different geomagnetic storms of solar cycles 23, 24, and 25.
Ashutosh Giri   +4 more
doaj   +1 more source

The rate of transient beta frequency events predicts behavior across tasks and species

open access: yeseLife, 2017
Beta oscillations (15-29Hz) are among the most prominent signatures of brain activity. Beta power is predictive of healthy and abnormal behaviors, including perception, attention and motor action.
Hyeyoung Shin   +4 more
doaj   +1 more source

Entropy in Dimension One

open access: yes, 2014
This paper completely classifies which numbers arise as the topological entropy associated to postcritically finite self-maps of the unit interval. Specifically, a positive real number h is the topological entropy of a postcritically finite self-map of ...
Thurston, William
core   +1 more source

The cost-effectiveness of antibiotic prophylaxis for patients at risk of infective endocarditis [PDF]

open access: yes, 2016
Background: In March 2008, the National Institute for Health and Care Excellence (NICE) recommended stopping antibiotic prophylaxis (AP) for those at risk of infective endocarditis (IE) undergoing dental procedures in the UK, citing a lack of evidence ...
Baddour, L.M.   +7 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

The place of metoprolol tartrate in the treatment of cardiovascular diseases

open access: yesМедицинский совет, 2016
Since the beginning of the 1960s, beta-blockers have been number one medications in the treatment of cardiovascular diseases. A number of randomized controlled trials (RCTs) demonstrated positive effect of beta-blockers on morbidity and mortality [1]. It
N. V. Romanova, I. V. Zhirov
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

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