Results 61 to 70 of about 1,027,081 (211)

Diversity of Reproductive Phenology Among Subtropical Grasses Is Constrained by Evolution and Climatic Niche

open access: yesFrontiers in Ecology and Evolution, 2020
Reproductive phenology is sensitive to climatic changes and is associated with species functional types, distribution ranges, and their corresponding climatic niches. Phylogenetic niche conservatism in reproductive phenology also constrains its diversity
Kangxin Li   +12 more
doaj   +1 more source

Nutrient allocation patterns in different aboveground organs at different reproductive stages of four introduced Calligonum species in a common garden in northwestern China

open access: yesFrontiers in Plant Science
IntroductionThe Calligonum species is a typical shrub with assimilative branches (ABs) in arid regions in Central Asia. The nutrient distribution patterns at different reproductive stages are of great significance for further understanding the ecological
Ji-Yuan Liu   +13 more
doaj   +1 more source

The Role of RFamide-Related Peptide-3 in Age-Related Reproductive Decline in Female Rats. [PDF]

open access: yes, 2016
Reproductive senescence, the point in time when females cease to show estrous cyclicity, is associated with endocrine changes in the hypothalamus, pituitary, and gonads. However, the mechanisms triggering this transition are not well understood.
Bentley, George E   +4 more
core   +1 more source

Oocyte quality of tambaqui (Colossoma macropomum) during the reproductive season

open access: yesBrazilian Journal of Biology
The study aimed to analyze the Colossoma macropomum reproductive behavior and quality of the female gametes throughout the reproductive season. The experiment was carried out in Pimenta Bueno - Rondônia State (Northern Brazil) during the reproductive ...
JM. Galo   +6 more
doaj   +1 more source

Formation of mental disorders in dysmenorrea at early reproductive age

open access: yesБюллетень сибирской медицины, 2009
Clinical-psychopathological examination has been carried out as well as quality of life has been studied in female patients with dysmenorrea in period of puberty and at early reproductive age.
R. F. Nasyrova, L. S. Sotnikova
doaj   +1 more source

Future Educators’ Gender Norms, Sexuality, and Reproductive Health. [PDF]

open access: yes, 2013
This investigation explored gender-related norms, sexuality, and reproductive health among education students in a government university in Samar, Philippines.
Cinco, KE   +6 more
core  

A nursery site of the Alaska skate (Bathyraja parmifera) in the eastern Bering Sea [PDF]

open access: yes, 2008
A nursery site for the Alaska skate (Bathyraja parmifera) was sampled seasonally from June 2004 to July 2005. At the small nursery site (~2 km2), located in a highly productive area near the shelf-slope interface at the head of Bering Canyon in the ...
Hoff, Gerald R.
core  

Menopausia, el inicio del envejecimiento de las mujeres chilenas. Un estudio cualitativo [PDF]

open access: yes, 2017
Indexación: Scopus.Objective. To develop the meaning of menopause of a group of post-menopausal women and their relationship with aging. Methods. Qualitative descriptive study on 15 Chilean women that completed a taped face-to-face in depth interview ...
Araya, A.   +3 more
core   +1 more source

Strategies to alleviate reproductive wastage in dairy cows [PDF]

open access: yes, 2007
End of project reportgrass-based systems of production. A series of studies were carried out to (i) improve our understanding of the physiological basis of poor reproductive performance; (ii) examine management and nutritional strategies to improve ...
Butler, Stephen
core  

The Physiological Basis of Alfalfa Plant Height Establishment

open access: yesPlants
Plant height plays an important role in crop yield, product quality, and cultivation management. However, the physiological mechanisms that regulate the establishment of plant height in alfalfa plants remain unclear.
Fang Jing   +6 more
doaj   +1 more source

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