Results 51 to 60 of about 21,182 (281)

Dactyliform appendage contributes to delayed selfing in the diminutive orchid Stigmatodactylus sikokianus

Plants, People, Planet
Societal Impact Statement Understanding plant reproductive strategies is vital for conserving endangered species. This study reveals a novel self‐pollination mechanism in the diminutive orchid Stigmatodactylus sikokianus, facilitated by the movement of a
Kenji Suetsugu
doaj   +1 more source

Pollinator availability, mating system and variation in flower morphology in a tropical savanna tree

Acta Botânica Brasílica
Widely distributed organisms face different ecological scenarios throughout their range, which can potentially lead to micro-evolutionary differentiation at specific localities.
André Rodrigo Rech, Leonardo Ré Jorge, Jeff Ollerton, Marlies Sazima   +3 more
doaj   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

Assessment of Health Facility Compliance with Standards and Perception of Adolescents to Quality of Sexual and Reproductive Health Services in Kilindi, Tanga Tanzania [PDF]

, 2012
Promoting healthy practices during adolescence and taking steps for better protection of young people from health risks is critical to the future of countries‘ health.
Maro, G, Maro, Godson
core  

Does selfing provide reproductive assurance in the perennial herb 'Bulbine vagans' (Asphodelaceae)?

, 2009
Selection for selfing to provide reproductive assurance depends on the balance between increased reproductive output when pollinators or potential mates are scarce and the extent that inbreeding depression erodes such fertility gains.
Ramsey, Michael William, Vaughton, Glenda Vera, Simpson, Ian   +2 more
core   +1 more source

Quality of maternal and child health services in Tanzanian primary healthcare: a 2021–2022 star rating review

Reproductive Health
Background Tanzania faces high maternal and infant mortality rates, yet key service quality metrics remain underexamined, limiting targeted improvements. Star Rating Assessment (SRA), introduced in 2015, aims to improve primary health care (PHC) quality,
Erick S. Kinyenje, Martin M. Degeh, Joseph C. Hokororo, Syabo M. Mwaisengela, Ruth R. Ngowi, Omary A. Nassoro, Chrisogone J. German, Radenta P. Bahegwa, Yohanes S. Msigwa, Atuganile Musyani, Laura E. Marandu, Michael Habtu, Jennifer T. Mbise, Habibu Ismail, Janeth Masuma, Faraja Msemwa, Joanita Muruve, Saturini Manangwa, Daudi Msasi, Jimmy Mbelwa, Athman Pembe, Ahmad M. Makuwani, Ntuli A. Kapologwe, Tumaini J. Nagu, Eliudi S. Eliakimu   +24 more
doaj   +1 more source

Pollinator-mediated self-pollination and reproductive assurance in an isolated tree of Magnolia grandiflora L.

Ecological Processes, 2020
Background The ability to produce seeds when pollinators or potential mates are scarce is one of the principal advantages of self-pollination in flowering plants.
Arun Sukumaran, Vinod Prasad Khanduri, Chandra Mohan Sharma   +2 more
doaj   +1 more source

Auxin-Inducible Degron System Reveals Temporal-Spatial Roles of HSF-1 and Its Transcriptional Program in Lifespan Assurance

Frontiers in Aging, 2022
HSF-1 is a key regulator of cellular proteotoxic stress response and is required for animal lifespan. In C. elegans, HSF-1 mediated heat shock response (HSR) declines sharply on the first day of adulthood, and HSF-1 was proposed to function primarily ...
Allison C. Morphis, Stacey L. Edwards, Purevsuren Erdenebat, Lalit Kumar, Jian Li   +4 more
doaj   +1 more source

Increased Risk of Sarcomas in Children With Congenital Anomalies: Findings From the Genetic Overlap Between Anomalies and Cancer in Kids (GOBACK) Registry Linkage Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric sarcomas are a heterogeneous group of tumors that contribute disproportionately to cancer mortality in children. Although congenital anomalies are among the strongest known risk factors for childhood cancer, the risk of specific sarcoma subtypes among affected individuals has not yet been thoroughly evaluated. Procedure We
Russ Wolters, Ji Yun Tark, Tiffany M. Chambers, Tania A. Desrosiers, Michael E. Scheurer, Charles Shumate, Wendy N. Nembhard, Mahsa M. Yazdy, Eirini Nestoridi, Amanda E. Janitz, Jean Paul Tanner, Russell S. Kirby, Jason L. Salemi, Yao Yu, Chad D. Huff, Sharon E. Plon, Philip J. Lupo, Jeremy M. Schraw   +17 more
wiley   +1 more source

Barriers to sexual health services for young people in Nepal

, 2010
Although sexual and reproductive health education and services are provided to young people, current rates of HIV infection and pregnancy are increasing in Nepal, indicating that young people do not always use sexual health services.
Simkhada, Padam, Dev Raj Acharya, Padam Simkhada, Edwin Van Teijlingen, Pramod R Regmi, van Teijlingen, Edwin, Teijlingen, Edwin van, Regmi, Pramod, Regmi, Pramod R., Acharya, Dev Raj   +9 more
core   +1 more source