Results 31 to 40 of about 46,516 (173)

Motility-dependent selective transport of active matter in trap arrays: Separation methods based on trapping-detrapping and deterministic lateral displacement [PDF]

open access: yesNanoscale 17, 13434 - 13446 (2025)
Selecting active matter based on its motility represents a challenging task, as it requires different approaches than common separation techniques intended for separation based on, e.g., size, shape, density, and flexibility. This motility-based selection is important for, e.g., selecting biological species, such as bacteria or highly motile sperm ...
arxiv   +1 more source

Korelasi Antara Lingkar Skrotum Dengan Volume Semen, Konsentrasi Dan Motilitas Spermatozoa Pejantan Sapi Bali

open access: yesJurnal Ternak Tropika, 2017
Data were collected from April to Mei 2017 in Singosari National Artificial Insemination Center. The purpose of this research was to examined the correlation between scrotal circumference with semen volume, sperm concentration and motility on the Bali ...
Deny Julio Saputra   +2 more
doaj   +1 more source

Emergent three-dimensional sperm motility: Coupling calcium dynamics and preferred curvature in a Kirchhoff rod model [PDF]

open access: yesMathematical Medicine and Biology: A Journal of the IMA, dqy015, 16 October 2018, 2018
Changes in calcium concentration along the sperm flagellum regulate sperm motility and hyperactivation, characterized by an increased flagellar bend amplitude and beat asymmetry, enabling the sperm to reach and penetrate the ovum (egg). The signaling pathways by which calcium increases within the flagellum are well established.
arxiv   +1 more source

Relationship between The Addition of Glutathione to Sperm Freezing Medium and Cryosurvival Rate of Sperm Motility and Viability in Asthenozoospermic Patients

open access: yesKufa Journal for Nursing Sciences, 2017
Objective: This study aimed to determine the relationship between the addition of Glutathione to sperm freezing medium and cryosurvival rate of sperm motility and viability in asthenozoospermic patients.
Hisham Q. Mohammad Al-Nowainy
doaj   +1 more source

Sperm Detection and Tracking in Phase-Contrast Microscopy Image Sequences using Deep Learning and Modified CSR-DCF [PDF]

open access: yesarXiv, 2020
Nowadays, computer-aided sperm analysis (CASA) systems have made a big leap in extracting the characteristics of spermatozoa for studies or measuring human fertility. The first step in sperm characteristics analysis is sperm detection in the frames of the video sample. In this article, we used RetinaNet, a deep fully convolutional neural network as the
arxiv  

Sperm handling and management in the teleost model fish Japanese medaka (Oryzias latipes)

open access: yesScientific Reports
Japanese medaka (Oryzias latipes) has been used as a model organism in different research fields, including reproductive physiology. Sperm motility is the most important marker for male fertility in fish and, thus, reproduction success.
Amin Sayyari   +3 more
doaj   +1 more source

Correlative Study of Sperm Motility and Mitochondrial Membrane Potential by Fluorescent Staining: First Application in Iraqi Centers [PDF]

open access: yesAl-Anbar Medical Journal
Background: Sperm motility is an essential factor in ensuring the fertility of males. Sperm mitochondria play a significant role in the generation of energy as well as the metabolism of sperm.
Thaer Farhan
doaj   +1 more source

Selecting active matter according to motility in an acoustofluidic setup: Self-propelled particles and sperm cells [PDF]

open access: yesSoft Matter 19, 8635-8648 (2023)
Active systems -- including sperm cells, living organisms like bacteria, fish, birds, or active soft matter systems like synthetic ''microswimmers'' -- are characterized by motility, i.e., the ability to propel using their own ''engine''. Motility is the key feature that distinguishes active systems from passive or externally driven systems. In a large
arxiv   +1 more source

Effects of L-carnitine and L-acetyl-carnitine on testicular sperm motility and chromatin quality [PDF]

open access: yesIranian Journal of Reproductive Medicine, 2012
Background: Sperm cells extracted from testes (TESE) have poor chromatin quality and motility. Various substances are used in the laboratory to increase sperm motility and improve the ART outcomes; however, there are few research which considered ...
Elham Aliabadi   +5 more
doaj  

Low Sperm Motility Is Determined by Abnormal Protein Modification during Epididymal Maturation

open access: yesThe World Journal of Men's Health, 2022
Purpose:Purpose: During epididymal sperm maturation, spermatozoa acquire progressive motility through dynamic protein modifica-tions. However, the relationship between sequential protein modifications during epididymal sperm maturation and sperm motility
Yoo-Jin Park   +5 more
doaj   +1 more source

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