Results 101 to 110 of about 109,348 (344)

Sperm Counts Are Falling Worldwide

open access: yes, 2021
Claims that sperm counts have fallen worldwide are based on meta-analysis of sperm concentration data taken from a variety of published studies that were never designed to answer this question. Since methods of counting sperm in the laboratory over time have changed so markedly, both in terms of the techniques used and in terms of the staff training ...
openaire   +2 more sources

Semen Quality and Reproductive Hormones in Faroese Men – a Cross-sectional Population-based Study of 481 Men [PDF]

open access: yes, 2013
Objectives: To determine semen quality and reproductive hormone levels in young Faroese men. Design: Descriptive cross-sectional study of Faroese men compared with Danish men. Setting: Faroese one-centre study.
Grandjean, Philippe   +5 more
core   +1 more source

Loss‐Based Ensemble Generative Adversarial Network Model for Enhancing the Sperm Morphology Classification

open access: yesAdvanced Intelligent Systems, EarlyView.
A loss‐based ensemble generative adversarial network (GAN) framework is proposed to address mode collapse in sperm morphology classification. By integrating spatial augmentation and multiple GAN models, the study enhances synthetic data quality. The Shifted Window Transformer achieves 95.37% accuracy on the HuSHeM dataset, outperforming previous ...
Berke Cansiz   +2 more
wiley   +1 more source

Leptin induced changes in sperm parameters in Sprague-Dawley rats: role of oxidative stress and its prevention by melatonin / Fayez A. M. Almabhouh [PDF]

open access: yes, 2016
Exogenous leptin administration has been shown to adversely effect sperm count and sperm morphology in normal adult rats. It is however unknown if it affects sperm DNA integrity and increases apoptosis of sperm and testicular tissue cells.
A.M.Almabhouh, Fayez
core  

Progress [PDF]

open access: yes, 1989
Magazine reporting on the activities and programs of the University Hospital at Boston University Medical ...
Office of Publication Services, Boston University Medical Center
core  

Mechanistic Insights Into Photocatalytic Materials for Toxic Pollutants: Environmental Remediation of Personal Care Products

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Photocatalytic materials have emerged as promising solutions for environmental applications due to their ability to degrade organic pollutants under sunlight or artificial light. In this review, recent progress on the photocatalytic materials used for the degradation of pharmaceutical personal care products (PPCPs) in environmental ...
Urvashi Sen   +5 more
wiley   +1 more source

Real-Time Single Cell Monitoring: Measurement and Counting of Motile Sperm Using LCR Impedance-Integrated Microfluidic Device

open access: yesMicromachines, 2019
In this research, we aimed to count the ratio of the number of motile to immotile sperm for patients with infertility problems based on a low-sperm-concentration examination.
Chalinee Phiphattanaphiphop   +3 more
doaj   +1 more source

Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin

open access: yesThe Anatomical Record, EarlyView.
Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley   +1 more source

Protective Effect of L-Carnitine on the Sperm Parameters of Adult Mice Treated with Ciprofloxacin

open access: yesJournal of Ardabil University of Medical Sciences, 2018
Background & objectives: The present study examined the gonadotoxic effects of ciprofloxacin antibiotics and protective effects of L-carnitine. Methods: In this study, 20 NMRI mice were divided into four groups: control, ciprofloxacin, L-carnitine, L ...
Mina Kiani, Paria Parto
doaj  

Analysis of Infertile Male's Sperm Parameters [Infertil Ciftlerin Degerlendirilmesinde Semen Parametrelerinin Analizi]

open access: yesMedicine Science, 2016
Sperm analysis must be the first investigation for the couples who desire for fertility. Sperm concentration, total progressive motile sperm count, total motile sperm persentage, total progressive motil sperm persentage and sperm morphology are the best ...
Mehmet Kececioglu
doaj   +1 more source

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