Results 81 to 90 of about 410,908 (314)

Sexual Differentiation of Neuroendocrine Systems and Behavior ,

Poultry Science, 1989
Differentiation of the reproductive system occurs in stages, with early development of the gonads and later differentiation of the brain. The physiological mechanisms that are involved in the sequence of events during sexual differentiation have not been clearly understood. However, recent technological advances have made understanding these mechanisms
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Establishing evidence criteria for implementation strategies in the US: a Delphi study for HIV services

Implementation Science
Background There are no criteria specifically for evaluating the quality of implementation research and recommending implementation strategies likely to have impact to practitioners. We describe the development and application of the Best Practices Tool,
Virginia R. McKay, Alithia Zamantakis, Ana Michaela Pachicano, James L. Merle, Morgan R. Purrier, McKenzie Swan, Dennis H. Li, Brian Mustanski, Justin D. Smith, Lisa R. Hirschhorn, Nanette Benbow   +10 more
doaj   +1 more source

Determinants of Adolescent Sexual Behavior in Sub-Saharan Africa: A Systematic Review of In-School and Out-of-School Adolescents

Public Health Reviews
ObjectivesThis review aims to identify the main determinants of various sexual behaviors among in-school and out-of-school adolescents in sub-Saharan Africa, using Bronfenbrenner’s ecological system theory as a framework.MethodsA systematic review with ...
Ruth-Janet Koumba Maguena, Ruth-Janet Koumba Maguena, Sara Alves Jorge, Sara Alves Jorge, Edgard Brice Ngoungou, Edgard Brice Ngoungou, Stephan Van den Broucke, Stephan Van den Broucke   +7 more
doaj   +1 more source

Olfactory Systems in Mate Recognition and Sexual Behavior [PDF]

, 2010
Olfactory signals play an important role so that breeding efforts are synchronized with appropriate social and environmental circumstances. In this context, the mammalian olfactory system is characterized by the existence of several olfactory subsystems that have evolved to process olfactory information.
Keller, Matthieu, Pillon-Ricaud, Delphine, Bakker, Julie   +2 more
openaire   +4 more sources

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

Molecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge, Morten Tulstrup, Gabriele Todisco, Pedro Moura, Christophe Côme, Jakob Werner Hansen, Jakob Schmidt Jespersen, Balthasar Schlotmann, Maria Creignou, Mette Dahl, Claudia Schöllkopf, Klas Raaschou‐Jensen, Krister Wennerberg, Bo Porse, Joachim Weischenfeldt, Eva Hellström‐Lindberg, Lasse Sommer Kristensen, Kirsten Grønbæk   +17 more
wiley   +1 more source

The reliability and validity of the Sexual Violence Risk-20 (SVR-20): An International Review

, 2009
This article reports on the current state of research about the most commonly used Structured Professional Judgement (SPJ) guidelines for sexual offender risk assessment, the Sexual Violence Risk-20 (SVR-20).
Hucker, Stephen J., Eher, Reinhard, Rettenberger, Martin, Boer, Douglas Pieter   +3 more
core  

Access to contraceptive services during the COVID-19 pandemic: clients’ perspective at primary health care level from India, Nigeria and Tanzania

Reproductive Health
Background The COVID-19 pandemic disrupted the provision of sexual and reproductive health services, including contraceptive and family planning (FP) services.
Rita Kabra, Komal Preet Allagh, Tanimola Makanjuola Akande, Ester Elisaria, Beena Joshi, Adesola Olumide, Mary Ramesh, Donat Shamba, Deepti Tandon, Ranjan Prusty, Bhavya MK, Shabana Khan, James Kiarie   +12 more
doaj   +1 more source

Sexual-dimorphism in human immune system aging

Nature Communications, 2020
Whether the immune system aging differs between men and women is barely known. Here the authors characterize gene expression, chromatin state and immune subset composition in the blood of healthy humans 22 to 93 years of age, uncovering shared as well as
Eladio J. Márquez, Cheng-han Chung, Radu Marches, Robert J. Rossi, Djamel Nehar-Belaid, Alper Eroglu, David J. Mellert, George A. Kuchel, Jacques Banchereau, Duygu Ucar   +9 more
doaj   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source