Results 1 to 10 of about 142,460 (195)
Soil Fertility and Fertilizers [PDF]
AIBS 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
Cells, 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 +5 more sources
Fertility and the Plough [PDF]
SSRN 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
Cryptorchidism and Fertility [PDF]
Clinical 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
SSRN Electronic Journal, 2019 AbstractWe investigate the determinants of the fertility decline in Europe from 1830 to 1970 using a newly constructed data set of linguistic distances between European regions. The decline resulted from the gradual diffusion of new fertility behaviour from French-speaking regions to the rest of Europe.
Enrico Spolaore, Romain Wacziarg
openaire +3 more sources
Human Reproduction Update, 2005 The late 20th century trend to delay birth of the first child until the age at which female fecundity or reproductive capacity is lower has increased the incidence of age-related infertility. The trend and its consequences have also stimulated interest in the possible factors in the female and the male that may contribute to the decline in fecundity ...
Baird, D.t. +19 more
openaire +4 more sources
Fertilization 2: Polyspermic Fertilization [PDF]
, 2017 During fertilization in animals, a haploid egg nucleus fuses with a haploid sperm nucleus to restore the diploid genome. In most animals including mammals, echinoderms, and teleostei, the penetration of only one sperm into an egg is ensured at fertilization because the entry of two or more sperm is prevented by polyspermy block systems in these eggs ...
openaire +4 more sources
To be or not to be [fertile], that is the question [PDF]
Basic and Clinical Andrology, 2016 According to our literature analysis, there are no data focused on spermatozoa emotional representations in childless men and data on the emotional repercussions of a diagnosis of infertility on men are still scarce. Thus, in this work, we investigated what the presence or absence of spermatozoa in the semen symbolize for men.To answer this question ...
N. Swierkowski-Blanchard +9 more
openaire +3 more sources
Practical fertilization in maize with organic fertilizers
Practice Abstract, 2018 Maize is one of the most important crops, especially on dairy farms. Because dairy farms are so nutrient-rich, they are often associated with nitrate leaching. To avoid N leaching during the winter period, the implementation of catch crops is important. Together with root fertilization and organic fertilizers, nitrogen can be used very efficiently and
openaire +2 more sources
Future Fertility in Low Fertility Countries [PDF]
, 2014 Chapter 3 is the first of six that present a comprehensive science-based assessment of what we know today about the drivers of future fertility, mortality, migration, and education. This chapter concerns countries with currently low fertility. It presents and justifies assumptions for future fertility trajectories based on an overview of recent ...
1. M Jalal Abbasi-Shavazi +15 more
openaire +5 more sources