Results 51 to 60 of about 1,743,147 (267)

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

Convergent evolution in toothed whale cochleae

open access: yesBMC 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   +4 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 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

open access: yesEuropean 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   +6 more
doaj   +1 more source

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

open access: yesParasites & 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   +12 more
doaj   +1 more source

History of life on Earth [PDF]

open access: yesCurrent Biology, 2015
All of you will be familiar with those educational graphics that put into stark perspective how tiny is our place in the Universe, how on a clock that began ticking with the origin of life, humans evolved less than a minute before midnight. And the time since Current Biology began, 25 years ago, would be the merest fraction of a second.
openaire   +2 more sources

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld   +5 more
wiley   +1 more source

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

open access: yesBMC 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   +6 more
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine   +17 more
wiley   +1 more source

Age and body size of Rana amurensis from northeastern China

open access: yesCurrent Zoology, 2011
Age and body size are two important demographic traits that determine the life history strategies of populations and species. We measured these two parameters of Rana amurensis, at a 900 m and a 500 m altitude site in northeastern China. At the two sites,
Age structure, Body size; life history; Rana amurensis
doaj  

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