Results 111 to 120 of about 108,786 (297)
Early evolutionary history of the seed
Biological Reviews, EarlyView.ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
wiley +1 more source
Micromachines, 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
PEK14: A Kinesin‐4 Necessary for Male‐Derived Fertility in Arabidopsis thaliana
Cytoskeleton, EarlyView.ABSTRACT Of the 61 kinesins annotated in Arabidopsis thaliana, many are still without assigned function. Here, we have screened an insertional mutant library of Arabidopsis pollen‐expressed kinesins for fertility defects. Insertional mutants for three kinesins showed a significant reduction in seed set.
Isabella N. Mendes +6 more
wiley +1 more source
Medicine 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
Aloe vera toxic effects: expression of inducible nitric oxide synthase (iNOS) in testis of Wistar rat [PDF]
, 2015 Objective(s): Nitric oxide (NO), a product of inducible nitric oxide synthase (iNOS), contributes in germ cell apoptosis. This study was aimed to evaluate the effects of Aloe vera gel (AVG) on male Wistar rat reproductive organ, serum NO level, and ...
Asgharzadeh, Samira. +4 more
core +3 more sources
, 2018 Prevalence of infertility gravitates to increase due to different factors. Causes of male infertility could be varicocele, idiopathic infertility, testicular insufficiency, obstruction, ejaculation disorder, medicine-radiation effect, undescended testis, immunological mechanisms, endocrine dysfunction such as diabetes, excessive taking of alcohol ...
openaire +1 more source
Deep Underground Science and Engineering, EarlyView.Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley +1 more source
Intrauterine insemination: evaluation of the results according to the woman's age, sperm quality, total sperm count per insemination and life table analysis [PDF]
, 2017 We report on 332 infertile couples who underwent 1115 cycles of intrauterine insemination (IUI) with washed husband's semen. The indication for IUI was an abnormal post-coital test due to either a male or cervical infertility factor.
Bianchi, Patrizia Grace +6 more
core
Developmental Dynamics, EarlyView.Abstract Background Midline establishment is a fundamental process during early embryogenesis for Bilaterians. Midline morphogenesis in non‐amniotes can occur without mitosis, through Planar Cell Polarity (PCP) signaling. By contrast, amniotes utilize both cellular processes for developing the early midline landmark, the primitive streak (PS).
Zhiling Zhao, Rieko Asai, Takashi Mikawa
wiley +1 more source
Equine Veterinary Journal, EarlyView.Abstract Background Persistent breeding‐induced endometritis (PBIE) is a common reason for mares failing to establish pregnancy. Objective To examine the hypothesis that advancing mare age and embryo donor status predispose to PBIE and compromise fertility.
Tom Stout +3 more
wiley +1 more source