Results 111 to 120 of about 2,161,869 (256)
Angewandte Chemie International Edition, EarlyView.A genome analysis revealed the presence of many bacterial‐type terpene synthases in springtails. Four enzymes from Sinella curviseta were functionally characterised, resulting in the isolation of several compounds including sinellene ether, the first diterpene ether identified from a terpene synthase that represents a novel skeleton.
Min Wang +5 more
wiley +1 more source
The Historical Fertility Transition: A Guide for Economists [PDF]
The historical fertility transition is the process by which much of Europe and North America went from high to low fertility in the nineteenth and early twentieth centuries.
Timothy W. Guinnane
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Dental crown morphological variation and heterodonty in carcharhiniform sharks
The Anatomical Record, EarlyView.Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley +1 more source
Key messageRestoration of haploid female and haploid male fertility without colchicine is feasible. Three SNPs and eight gene models for HFF, and one SNP and a gene model for HMF were identified.
Fakude, Mercy +4 more
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Reconciling studies of men’s gender attitudes and fertility [PDF]
A reflexion by Westoff and Higgins (2009) in response to a study by Puur, Oláh, Tazi-Preve and Dorbritz (2008) has been recently published in this journal.
Frances Goldscheider +2 more
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The Anatomical Record, EarlyView.Abstract The vertebrate skull is composed of bones derived from neural crest cells and mesoderm. The evolutionary capacity of the skull has been linked, in part, to the emergence of neural crest cells; however, this increased capacity for evolutionary change requires that variation within neural crest‐ and mesoderm‐derived bones remains partly ...
Alyssa C. Moore +5 more
wiley +1 more source
The increasing importance of economic conditions on fertility [PDF]
This paper investigates whether there has been a fundamental change in the importance of economic conditions on fertility. Through the 1980s econometric studies had found at best a mixed, neutral or negative effect of economic conditions on fertility ...
Joshua R. Goldstein +1 more
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Obesity and male fertility disorders
Molecular Aspects of MedicineOften associated with obesity, male infertility represents a widespread condition that challenges the wellbeing of the couple. In this article, we provide a comprehensive and critical analysis of studies exploring the association between obesity and male reproductive function, to evaluate the frequency of this association, and establish the effects of ...
Cannarella, Rossella +5 more
openaire +2 more sources
The Anatomical Record, EarlyView.Abstract Sexual differentiation in the equine fetus involves coordinated morphogenetic processes that shape both the gonads and the genital ducts. Although the formation of testes and ovaries has been relatively well documented, the temporal dynamics and morphometric patterns of the mesonephric (Wolffian) and paramesonephric (Müllerian) ducts remain ...
Tais Harumi de Castro Sasahara +4 more
wiley +1 more source
Islamic inheritance law, son preference and fertility behavior of Muslim couples in Indonesia [PDF]
This paper examines whether the son preference and fertility behavior of Muslim couples respond to the risk of inheritance expropriation by their extended family. According to traditional Islamic inheritance principles, only the son of a deceased man can
Carranza, Eliana
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