Results 71 to 80 of about 948,228 (268)

Topical application of hormone gonadotropin‐releasing hormone (GnRH‐A) stimulates reproduction in the endangered Texas blind salamander (Eurycea rathbuni)

open access: yesConservation Science and Practice, 2022
We present a landmark success of a pilot study in the noninvasive, topical hormonal stimulation of reproduction of salamanders using Texas blind salamanders (Eurycea rathbuni) as a model species.
Lindsay Glass Campbell   +2 more
doaj   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Relationships Among Beef Cow Productivity Traits and Single Nucleotide Polymorphisms in the Bovine Heat Shock Protein 70 Gene [PDF]

open access: yes, 2018
When eukaryotes are exposed to stressors such as heat, toxins, and low oxygen levels, heat shock proteins (HSPs) are synthesized to maintain normal cellular function within the body.
Finney, Ashley
core   +2 more sources

Male age mediates reproductive investment and response to paternity assurance. [PDF]

open access: yes, 2013
addresses: Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, , Cornwall Campus, Penryn TR10 9EZ, UK, Department of Genetics, University of Georgia, , Athens, GA 30602, USA.types: Journal ArticleTheory ...
Espie RHM   +8 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Adolescents’ reproductive health knowledge, choices and factors affecting reproductive health choices: a qualitative study in the West Gonja District in Northern region, Ghana

open access: yesBMC International Health and Human Rights, 2018
Background In Ghana, adolescents constitute about a quarter of the total population. These adolescents make reproductive health decisions and choices based on their knowledge and the availability of such choices.
Joseph Maaminu Kyilleh   +2 more
doaj   +1 more source

Characterizing the salivary RNA landscape to identify potential diagnostic, prognostic, and follow‐up biomarkers for breast cancer

open access: yesMolecular Oncology, EarlyView.
This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan   +9 more
wiley   +1 more source

La compétition spermatique chez les insectes: les stratégies d'assurance de la paternité et la préséance du sperme [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 1999
Sperm competition in insects: paternity assurance and sperm precedence. The prediction that insects, as a result of polyandry, extreme sperm longevity within the female and high efficiency of sperm utilisation at fertilisation, are preadapted to sustain ...
Arnaud L.
doaj  

Self-Compatibility Not Associated with Morphological or Genetic Diversity Reduction in Oil-Rewarding Calceolaria Species

open access: yesPlants, 2020
One of the most common evolutionary transitions in angiosperms is the reproductive change from outcrossing to selfing, commonly associated with changes in floral biology and genetic diversity.
Maureen Murúa   +2 more
doaj   +1 more source

Knowledge synthesis: Animal health and welfare in organic pig production - Final Report COREPIG [PDF]

open access: yes, 2011
This report reviews the available information on the welfare of pigs when maintained according to organic standards in Europe. It begins by overviewing the populations of organic pigs in different countries at the time of writing (2007), the organic ...
Bochicchio, David   +17 more
core  

Home - About - Disclaimer - Privacy