Results 41 to 50 of about 6,579,623 (306)

Convergent evolution in toothed whale cochleae

BMC Evolutionary Biology, 2019
Background Odontocetes (toothed whales) are the most species-rich marine mammal lineage. The catalyst for their evolutionary success is echolocation - a form of biological sonar that uses high-frequency sound, produced in the forehead and ultimately ...
Travis Park, Bastien Mennecart, Loïc Costeur, Camille Grohé, Natalie Cooper   +4 more
doaj   +1 more source

Queen control of a key life-history event in a eusocial insect [PDF]

, 2013
In eusocial insects, inclusive fitness theory predicts potential queen–worker conflict over the timing of events in colony life history. Whether queens or workers control the timing of these events is poorly understood.
Andrew F. G. Bourke, Aron S, Florian S. Guidat, Jacob G. Holland, Maynard Smith J, Oster GF   +5 more
core   +1 more source

Development of novel multiplex microsatellite polymerase chain reactions to enable high-throughput population genetic studies of Schistosoma haematobium

Parasites & Vectors, 2015
Background Human urogenital schistosomiasis caused by Schistosoma haematobium is widely distributed across Africa and is increasingly targeted for control and regional elimination.
B. L. Webster, M. Rabone, T. Pennance, A. M. Emery, F. Allan, A. Gouvras, S. Knopp, A. Garba, A. A. Hamidou, K. A. Mohammed, S. M. Ame, D. Rollinson, J. P. Webster   +12 more
doaj   +1 more source

Mitochondrial Molecular Adaptations and Life History Strategies Coevolve in Plants [PDF]

, 2008
Messenger RNA secondary structure prevents mutations at functionally important sites. Mutations at exposed sites would cause micro-adaptations, niche-specialization, and therefore, can be thought to promote K-strategists. Exposing, rather than protecting,
Basuthkar J. Rao, Neeraja M. Krishnan
core   +2 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

New species of Anguillosyllis Day, 1963 (Annelida, Syllidae) from polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean

European Journal of Taxonomy
The benthic annelid fauna of polymetallic nodule fields in the eastern Clarion-Clipperton Zone (CCZ), abyssal Central Pacific has recently been the subject of taxonomic investigations aiming to document the biodiversity of this region.
Lenka Neal, Regan Drennan, Helena Wiklund, Eva C.D. Stewart, Muriel Rabone, Thomas G. Dahlgren, Adrian G. Glover   +6 more
doaj   +1 more source

Transcriptomic evidence for visual adaptation during the aquatic to terrestrial metamorphosis in leopard frogs

BMC Biology, 2022
Background Differences in morphology, ecology, and behavior through ontogeny can result in opposing selective pressures at different life stages. Most animals, however, transition through two or more distinct phenotypic phases, which is hypothesized to ...
Ryan K. Schott, Rayna C. Bell, Ellis R. Loew, Kate N. Thomas, David J. Gower, Jeffrey W. Streicher, Matthew K. Fujita   +6 more
doaj   +1 more source

Glacial cycles promote greater dispersal, which can help explain larger clutch sizes, in north temperate birds [PDF]

, 2009
Earth’s glacial history and patterns in the life history traits of the planet’s avifauna suggest the following interpretations of how recent geological history has affected these key characteristics of the biota: 1) Increased colonizing ...
David W. Winkler, Frederick R. Adler, Russell Greenberg, Samuel M. Flaxman, Thomas E. Martin   +4 more
core   +1 more source

Health‐Related Quality of Life and Symptom Severity Among Patients With PIK3CA‐Related Overgrowth Spectrum: A Mixed‐Methods Study to Understand Real‐World Experience With Alpelisib Treatment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu, Kaitlin LaGasse, Cory D. Saucier, Kimberly Raymond, Miranda Lauher‐Charest, Lauren Crowder, Beilei Cai, Mary Lisha Paul, Denise Adams   +8 more
wiley   +1 more source

Synthetic and Semi-Synthetic Microplastic Ingestion by Mesopelagic Fishes From Tristan da Cunha and St Helena, South Atlantic

Frontiers in Marine Science, 2021
Mesopelagic fishes were sampled around Tristan da Cunha and St Helena in the South Atlantic from the RRS Discovery at depths down to 1000 m. Sampling was part of the Blue Belt Programme, a marine survey of British Overseas Territories funded by the ...
Alexandra R. McGoran, Alexandra R. McGoran, James S. Maclaine, Paul F. Clark, David Morritt   +4 more
doaj   +1 more source