Results 1 to 10 of about 839,901 (219)

Rampant tooth loss across 200 million years of frog evolution

open access: yeseLife, 2021
Teeth are present in most clades of vertebrates but have been lost completely several times in actinopterygian fishes and amniotes. Using phenotypic data collected from over 500 genera via micro-computed tomography, we provide the first rigorous ...
Daniel J Paluh   +10 more
doaj   +1 more source

Replacing mechanical protection with colorful faces–twice: parallel evolution of the non-operculate marine worm-snail genera Thylacodes (Guettard, 1770) and Cayo n. gen. (Gastropoda: Vermetidae) [PDF]

open access: yesPeerJ, 2023
Vermetid worm-snails are sessile and irregularly coiled marine mollusks common in warmer nearshore and coral reef environments that are subject to high predation pressures by fish. Often cryptic, some have evolved sturdy shells or long columellar muscles
Rüdiger Bieler   +6 more
doaj   +2 more sources

Long-Term Shifts in Faunal Composition of Freshwater Mollusks in Spring-Fed Rivers of Florida

open access: yesFrontiers in Ecology and Evolution, 2022
Florida’s freshwater spring and river ecosystems have been deteriorating due to direct and indirect human impacts. However, while the conservation and restoration strategies employed to mitigate these effects often rely on faunal surveys that go back ...
Kristopher M. Kusnerik   +6 more
doaj   +1 more source

Terror, Aesthetics, and the Humanities in the Public Sphere

open access: yesJournal of Transnational American Studies, 2010
In the early days of the Iraq War, the United States used the power of images, such as those of the “mother of all bombs” and a wide array of weapons, as well as aesthetic techniques to influence and shape the consciousness of millions and to generate ...
Emory Elliott
doaj   +1 more source

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele   +19 more
wiley   +1 more source

Teaching the History of American Rivers

open access: yesOpen Rivers, 2021
Like Open Rivers, I have long tried to answer the question of the value of river history and how can it be put to work to achieve environmental justice.
Scot McFarlane
doaj   +1 more source

The Effects of Herbarium Specimen Characteristics on Short-Read NGS Sequencing Success in Nearly 8000 Specimens: Old, Degraded Samples Have Lower DNA Yields but Consistent Sequencing Success

open access: yesFrontiers in Plant Science, 2021
Phylogenetic datasets are now commonly generated using short-read sequencing technologies unhampered by degraded DNA, such as that often extracted from herbarium specimens.
Heather R. Kates   +13 more
doaj   +1 more source

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

open access: yesPediatric 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   +23 more
wiley   +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

open access: yesPediatric 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   +8 more
wiley   +1 more source

Watershed Colonialism and Popular Geographies of North American Rivers

open access: yesOpen Rivers, 2017
Rivers have long been the subject and vehicle for compelling stories. As physical features that tie natural and human history, rivers in narratives have hidden as much as they’ve revealed by naturalizing cultural practices and human values...
Sigma Colon
doaj   +1 more source

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