Results 11 to 20 of about 1,095,790 (363)

Soil Fertility and Fertilizers [PDF]

open access: yesAIBS Bulletin, 1957
Soil fertility and fertilizers , Soil fertility and fertilizers , مرکز فناوری اطلاعات و اطلاع رسانی ...
Werner Lind Nelson, Samuel L. Tisdale
openaire   +3 more sources

Fertility and the Plough [PDF]

open access: yesSSRN Electronic Journal, 2011
This paper provides evidence that the form of agriculture traditionally practiced—intensive plough agriculture versus shifting hoe agriculture—affected historic norms and preferences about fertility, and that these norms persist, affecting observed fertility around the world today.
Alesina, Alberto   +2 more
openaire   +9 more sources

Fertility in Cystinosis [PDF]

open access: yesCells, 2021
Cystinosis is a rare inheritable lysosomal storage disorder characterized by cystine accumulation throughout the body, chronic kidney disease necessitating renal replacement therapy mostly during adolescence, and multiple extra-renal complications. The majority of male cystinosis patients are infertile due to azoospermia, in contrast to female patients
Ahmed Reda   +2 more
openaire   +4 more sources

Transcriptomics of cumulus cells – a window into oocyte maturation in humans

open access: yesJournal of Ovarian Research, 2020
Background Cumulus cells (CC) encapsulate growing oocytes and support their growth and development. Transcriptomic signatures of CC have the potential to serve as valuable non-invasive biomarkers for oocyte competency and potential.
Brandon A. Wyse   +5 more
doaj   +1 more source

#283 : Fertilization Rate and Embryonic Morphokinetic Parameters According to the Spindle Pattern in the Oocyte in Patients Over 40 Years of Age Who Underwent Polscope-Based ICSI

open access: yesFertility & Reproduction, 2023
Background and Aims: The spindle is an essential cellular organelle that plays an important role in the oocyte during chromosome alignment and separation at meiosis.
Su Hyeon Kim   +6 more
doaj   +1 more source

Latest‐Late Fertility? Decline and Resurgence of Late Parenthood Across the Low‐Fertility Countries [PDF]

open access: yes, 2020
After decades of fertility postponement, we investigate recent changes in late parenthood across low-fertility countries in the light of observations from the past.
Beaujouan, Eva
core   +1 more source

Malaria ecology, child mortality & fertility. [PDF]

open access: yes, 2017
The broad determinants of fertility are thought to be reasonably well identified by demographers, though the detailed quantitative drivers of fertility levels and changes are less well understood.
Conley, Dalton   +2 more
core   +1 more source

Features of chromosomal abnormalities in relation to consanguinity: analysis of 10,556 blastocysts from IVF/ICSI cycles with PGT-A from consanguineous and non-consanguineous couples

open access: yesScientific Reports, 2023
Consanguineous marriage is defined as marriage between first or second-degree cousins, with high prevalence in many cultures and societies. Descendants from consanguineous unions have an increased risk for genetic diseases.
Laura Melado   +7 more
doaj   +1 more source

Cryptorchidism and Fertility [PDF]

open access: yesClinical Medicine Insights: Reproductive Health, 2015
Cryptorchidism, the failure of one or both testes to descend into the scrotum prenatally, occurs in 2.4%-5% of newborns. Many of these testes will descend spontaneously shortly after birth, but ~23% will remain undescended unless surgery is performed.
Fatma Fawzy   +4 more
openaire   +8 more sources

Human sperm vitrification: the state of the art

open access: yesReproductive Biology and Endocrinology, 2020
Sperm cryopreservation has been widely used in assisted reproductive technology (ART) and has resulted in millions of live births. Two principal approaches have been adopted: conventional (slow) freezing and vitrification.
Yong Tao   +3 more
doaj   +1 more source

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