Results 31 to 40 of about 1,588,877 (269)

Speciation and hybridization in invasive fire ants

BMC Evolutionary Biology, 2019
Background A major focus of evolutionary biology is the formation of reproductive barriers leading to divergence and ultimately, speciation. Often, it is not clear whether the separation of populations is complete or if there still is ongoing gene flow ...
Pnina Cohen, Eyal Privman
doaj   +1 more source

The Combined Effect of Obesity and Contraceptive Use on Pulmonary Embolism in Adolescent Females Residing in the United States

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Combined oral contraceptive (COC) use in obese adult women dramatically increases the relative risk of developing a pulmonary embolism (PE). The risk of a PE in obese adolescent females taking contraceptives is currently unknown. The purpose of this investigation was to determine the effect of body mass index (BMI) and contraceptive
John Puetz, Joanne Salas
wiley   +1 more source

DNA Polymerases Engineered by Directed Evolution to Incorporate Nonstandard Nucleotides

Frontiers in Microbiology, 2014
DNA polymerases have evolved for billions of years to accept natural nucleoside triphosphate substrates with high fidelity and to exclude closely related structures, such as the analogous ribonucleoside triphosphates. However, polymerases that can accept
Roberto eLaos, John Michael Thomson, Steven Albert Benner   +2 more
doaj   +1 more source

Microscopic Malaria Infection and Its Determinants in Urban and Rural Populations Living in South-East Gabon

Journal of Parasitology Research
A better understanding of malaria epidemiology in both asymptomatic and symptomatic individuals is essential for developing strategies to control the disease.
Jean-Claude Biteghe-Bi-Essone, Roméo Karl Imboumy-Limoukou, Steede-Seinnat Ontoua, Nick Atiga, Nancy Mbani-Mpega, Lady Charlène Kouna, Jean Bernard Lekana-Douki, Lydie Sandrine Oyegue-Liabagui   +7 more
doaj   +1 more source

Reaction-diffusion in a growing 3D domain of skin scales generates a discrete cellular automaton

Nature Communications, 2021
The adult ocellated lizard skin colour pattern is effectively generated by a stochastic cellular automaton (CA) of skin scales. Here authors use reaction diffusion (RD) numerical simulations in 3D on realistic lizard skin geometries and demonstrate that ...
Anamarija Fofonjka, Michel C. Milinkovitch   +1 more
doaj   +1 more source

Are Fertility Preservation Procedures Before Gonadotoxic Therapy and Hematopoietic Stem Cell Transplantation Feasible and Safe in Very Young Children? A Retrospective Cohort Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Fertility preservation (FP) is increasingly integrated into the care of pediatric patients exposed to gonadotoxic therapy or conditioning for hematopoietic stem cell transplantation (HSCT), yet perioperative data in infants and toddlers remain scarce.
Kerstin Saalabian, Yannick Braun, Till‐Martin Theilen, Anke Barnbrock, Theresa Rohm, Fabienne Hammant, Nicole Sänger, Aynura Abbasova‐Semiz, Jan‐Henning Klusmann, Thomas Klingebiel, Udo Rolle, Peter Bader, Henning C. Fiegel, Andrea Jarisch   +13 more
wiley   +1 more source

Deconstructing the geography of human impacts on species’ natural distribution

Nature Communications
It remains unknown how species’ populations across their geographic range are constrained by multiple coincident natural and anthropogenic environmental gradients.
Conor Waldock, Bernhard Wegscheider, Dario Josi, Bárbara Borges Calegari, Jakob Brodersen, Luiz Jardim de Queiroz, Ole Seehausen   +6 more
doaj   +1 more source

Systematic errors in orthology inference and their effects on evolutionary analyses

iScience, 2021
Summary: The availability of complete sets of genes from many organisms makes it possible to identify genes unique to (or lost from) certain clades. This information is used to reconstruct phylogenetic trees; identify genes involved in the evolution of ...
Paschalis Natsidis, Paschalia Kapli, Philipp H. Schiffer, Maximilian J. Telford   +3 more
doaj   +1 more source

Central Nervous System Neuroblastoma, FOXR2‐Activated: A Pooled Analysis of Published Clinical Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) neuroblastoma, FOXR2‐activated, is a recently recognized entity in the WHO CNS5 classification, defined by activation of the FOXR2 transcription factor and unique histopathological features. This review synthesizes available literature and pooled clinical data, providing insight into demographics ...
Sudarshawn Damodharan, Mohamed S. Abdelbaki   +1 more
wiley   +1 more source

Prebiotic competition and evolution in self-replicating polynucleotides can explain the properties of DNA/RNA in modern living systems

BMC Evolutionary Biology, 2020
Background We hypothesize prebiotic evolution of self-replicating macro-molecules (Alberts, Molecular biology of the cell, 2015; Orgel, Crit Rev Biochem Mol Biol 39:99-123, 2004; Hud, Nat Commun 9:5171) favoured the constituent nucleotides and ...
Hemachander Subramanian, Joel Brown, Robert Gatenby   +2 more
doaj   +1 more source