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Frobenius 3-Folds via Singular Flat 3-Webs [PDF]
, 2012 We give a geometric interpretation of weighted homogeneous solutions to the associativity equation in terms of the web theory and construct a massive Frobenius 3-fold germ via a singular 3-web germ satisfying the following conditions: 1) the web germ ...
Agafonov, Sergey I.
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50 years of spermatogenesis: Sertoli cells and their interactions with germ cells
Biology of Reproduction, 2018 The complex morphology of the Sertoli cells and their interactions with germ cells has been a focus of investigators since they were first described by Enrico Sertoli. In the past 50 years, information on Sertoli cells has transcended morphology alone to
M. Griswold
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Ethics of modifying the mitochondrial genome [PDF]
, 2010 Recent preclinical studies have shown the feasibility of specific variants of nuclear transfer to prevent mitochondrial DNA disorders. Nuclear transfer could be a valuable reproductive option for carriers of mitochondrial mutations.
Bredenoord, A L +3 more
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Traffic : the International Journal of Intracellular Transport, 2019 Germ granules are hallmarks of all germ cells. Early ultrastructural studies in Drosophila first described these membraneless granules in the oocyte and early embryo as filled with amorphous to fibrillar material mixed with RNA.
Tatjana Trcek, R. Lehmann
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Meiotic wave adds extra asymmetry to the development of female chicken gonads [PDF]
, 2015 Development of female gonads in the chicken is asymmetric. This asymmetry affects gene expression, morphology, and germ cell development; consequently only the left ovary develops into a functional organ, whereas the right ovary remains vestigial.
Anjie, Stafford +8 more
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Trade-off between somatic and germline repair in a vertebrate supports the "expensive germ line" hypothesis [PDF]
, 2020 The disposable soma theory is a central tenet of the biology of aging where germline immortality comes at the cost of an aging soma [T. B. L. Kirkwood, Nature 270, 301–304 (1977); T. B. L. Kirkwood, Proc. R. Soc. Lond. B Biol. Sci. 205, 531–546 (1979); T.
Bublys, Kasparas +4 more
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Овощи России, 2012 Study of morphological parameters of seeds is of interest for the enhancement of quality of produced seeds vegetable Umbelliferae plants. Indicators of the linear dimensions of the embryo, endosperm, seed, and the degree of variability can be used for ...
A. F. Buharov, D. N. Baleev
doaj +1 more source
Social cohesion: converging and diverging trends [PDF]
, 2011 Social theorists frequently argue that social cohesion is under threat in developed societies from the multiple pressures of globalisation. This article seeks to test this hypothesis through examining the trends across countries and regions in key ...
Cheng, Helen, Green, Andy, Janmaat, Germ
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COVID-19: Up to 82% critically ill patients had low Vitamin C values
Nutrition Journal, 2021 There are limited proven therapeutic options for the prevention and treatment of COVID-19. We underwent an observational study with the aim of measure plasma vitamin C levels in a population of critically ill COVID-19 adult patients who met ARDS criteria
Teresa Maria Tomasa-Irriguible +1 more
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Bmp4 is required for the generation of primordial germ cells in the mouse embryo.
Genes & Development, 1999 In many organisms the allocation of primordial germ cells (PGCs) is determined by the inheritance of maternal factors deposited in the egg. However, in mammals, inductive cell interactions are required around gastrulation to establish the germ line. Here,
K. Lawson +7 more
semanticscholar +1 more source