Results 71 to 80 of about 3,886,676 (155)

Improving ARTs: Microfluidics as a Tool for Sperm Selection

open access: yesAndrology, EarlyView.
ABSTRACT Sperm selection is a critical step in assisted reproductive technology (ART), as sperm quality directly influences embryo quality. In vivo, the female reproductive tract imposes several physical and physiological barriers that favors only the most optimal spermatozoa reaching the fertilization site.
A. Pérez‐Gómez   +7 more
wiley   +1 more source

Solenoid hammer valve developed for quick-opening requirements [PDF]

open access: yes, 1967
Quick-opening lightweight solenoid hammer valve requires a low amount of electrical energy to open, and closes by the restoring action of the mechanical springs.
Wrench, E. H.
core  

Method of meal delivery influences estimates of postprandial metabolism and alkaline tide in a benthic fish

open access: yesJournal of Fish Biology, EarlyView.
Abstract Intragastric gavage is widely used in studies of digestive physiology to deliver standardised meals, yet it remains unclear whether it elicits postprandial metabolic and acid–base responses comparable to voluntary feeding. Here, we tested whether the method of meal delivery affects the magnitude and timing of the postprandial rise in metabolic
Junlin Chen   +2 more
wiley   +1 more source

Miniature, Lightweight, One-Time-Opening Valve [PDF]

open access: yes, 2008
The figure depicts the main parts of a prototype miniature, lightweight, onetime- opening valve. Like some other miniature one-time-opening valves reported in previous issues of NASA Tech Briefs, this valve is opened by melting a material that blocks the
Jones, Jack   +2 more
core  

Stem Cells From Dental Pulp, Periodontal Tissues, and Other Oral Sources: Biological Concepts and Regenerative Potential

open access: yesJournal of Periodontal Research, EarlyView.
A graphical abstract recapping the different sources of dental, periodontal, and other oral‐derived mesenchymal stromal cells (MSCs) and their regenerative mechanisms and potentials. The review's article findings bridge fundamental biological science with translational advances, highlighting the significance of MSCs in craniofacial regenerative ...
Karim M. Fawzy El‐Sayed   +6 more
wiley   +1 more source

A Population Pharmacokinetic Model of Gentamicin in Hospitalized Neonatal Foals

open access: yesJournal of Veterinary Pharmacology and Therapeutics, EarlyView.
ABSTRACT Information on safe and effective gentamicin dosing in foals is limited. This study aimed to provide guidance regarding optimal dosing regimens by means of a population pharmacokinetic (popPK) model. Gentamicin plasma concentration of 290 samples from 72 hospitalized foals (≤ 14 days old), treated with intravenous (IV) gentamicin, was measured
Astrid J. van den Brom‐Spierenburg   +12 more
wiley   +1 more source

Techniques for subretinal injections in animals

open access: yesVeterinary Ophthalmology, Volume 28, Issue 2, Page 506-518, March 2025.
Abstract Subretinal injections are not commonly performed during clinical treatment of animals but are frequently used in laboratory animal models to assess therapeutic efficacy and safety of gene and cell therapy products. Veterinary ophthalmologists are often employed to perform the injections in the laboratory animal setting, due to knowledge of ...
Ryan F. Boyd, Simon M. Petersen‐Jones
wiley   +1 more source

Experimental studies of CAI combustion in a four-stroke GDI engine with an air-assisted injector [PDF]

open access: yes, 2007
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.CAI combustion and the factors affecting it were intensively investigated in a single cylinder, air-assisted gasoline direct injection engine.
Brouzos, Nikolaos P
core   +2 more sources

Stem clutch for motor driven valve [PDF]

open access: yes, 1972
Development of mechanical device to reduce possibility of damage to motor driven needle valve is discussed. Mechanical clutch is employed to allow slippage when needle valve reaches limit of travel.
Blum, D. E., Wiltens, J. F.
core  

Post‐exercise ketone supplementation improves endurance performance and mitochondrial adaptations during an 8‐week endurance training intervention

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Twenty‐eight trained males completed 8 weeks of supervised indoor cycling training, receiving post‐exercise and pre‐sleep ketone monoester (KE, n = 14) or isocaloric placebo (CON, n = 14). Both groups improved 30 min time‐trial performance with training, but KE achieved a 4% higher power output than CON at the end of the training
Ruben Robberechts   +8 more
wiley   +1 more source

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