Results 81 to 90 of about 108,786 (297)
Frontiers in SurgeryObjectiveThis prospective study aimed to examine the effect of pre-operative sperm DFI on varicocelectomy success.Material and methodsA total of 51 infertile men with unilateral clinical VC who met the inclusion criteria and underwent microsurgical ...
Lihong Wang, Hui Jiang, Tao Jiang
doaj +1 more source
Urology Research and Practice, 2019 Objective: A male factor is responsible in approximately 30-40% of couples receiving infertility treatment. Routinely, such couples undergo semen analysis including parameters such as sperm count, motility and morphology. Generally, the analysis of sperm
Oya Sena Aydos +4 more
doaj +1 more source
Numerical cognition in bees and other insects [PDF]
, 2016 The ability to perceive the number of objects has been known to exist in vertebrates for a few decades, but recent behavioral investigations have demonstrated that several invertebrate species can also be placed on the continuum of numerical abilities ...
Pahl, Mario, Si, Aung, Zhang, Shaowu
core +1 more source
Intraspecific variation of cochlear morphology in bowhead and beluga whales
The Anatomical Record, EarlyView.Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc +26 more
wiley +1 more source
Journal of Basic and Applied Zoology, 2019 Background The potential toxicity of clove, Syzygium aromaticum, notwithstanding its beneficial health effect to human health remains a critical issue. Purpose This study was designed to assess the effects of oil extracts of clove (S.
Damola V. Akinwande +4 more
doaj +1 more source
Bayesian three-dimensional reconstruction of toothed whale trajectories: Passive acoustics assisted with visual and tagging measurements [PDF]
, 2012 The author describes and evaluates a Bayesian method to reconstruct three-dimensional toothed whale trajectories from a series of echolocation signals.
Laplanche, Christophe
core +4 more sources
Early stages of tooth development in the harbor porpoise Phocoena phocoena
The Anatomical Record, EarlyView.Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes +2 more
wiley +1 more source
Middle East Fertility Society Journal, 2015 Objective: To investigate the impact of alcohol on the reproductive hormones, oxidative stress and semen parameters. Design: This is an experimental animal study.
A.A. Oremosu, E.N. Akang
doaj +1 more source
Testicular cancer and sperm DNA damage: short- and long-term effects of antineoplastic treatment [PDF]
, 2015 The aim of this study was to investigate sperm DNA damage induced by chemo- and radiotherapy in patients with testicular cancer to provide data on the extent and persistence of nuclear damage that might affect individual reproductive potential.
F. Rizzo +7 more
core +1 more source