Results 71 to 80 of about 154,792 (190)
The Anatomical Record, Volume 309, Issue 7, Page 1797-1820, July 2026.Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc +26 more
wiley +1 more source
Rheotaxis facilitates upstream navigation of mammalian sperm cells [PDF]
, 2014 A major puzzle in biology is how mammalian sperm maintain the correct swimming direction during various phases of the sexual reproduction process. Whilst chemotaxis may dominate near the ovum, it is unclear which cues guide spermatozoa on their long ...
Dunkel, Jörn +8 more
core +1 more source
Revista CientíficaThe freshwater mussel (Unio elongatulus eucirrus), native to the Euphrates River basin in Türkiye, holds little economic value; however, it plays an important ecological role in natural aquatic ecosystems.
Mustafa Erkan Özgür
doaj +1 more source
Pregnancy, Volume 2, Issue 4, July 2026.Abstract Introduction Maternal obesity is highly prevalent worldwide, conferring elevated risks of maternal/fetal complications and adult‐onset disease in offspring. Obesity and pregnancy are both states of insulin resistance. Percutaneous electrical stimulation of skeletal muscle, better known as electroacupuncture (EA), mitigates insulin resistance ...
David J. Carr +9 more
wiley +1 more source
Stunt Nematode Found in Irrigated Lowland Rice Fields in North‐Central Brazil
Journal of Phytopathology, Volume 174, Issue 4, July/August 2026.ABSTRACT Brazil is a major global rice producer. Among the problems affecting the crop, nematodes cause significant damage, but studies on rice nematodes in the country are still considered insufficient. Commercial rice crops in lowland regions of rice‐producing municipalities in the state of Tocantins, Brazil, were examined following reports of ...
Flavia Fernandes R. Miranda +7 more
wiley +1 more source
Sperm flagellum volume determines freezability in red deer spermatozoa. [PDF]
PLoS ONE, 2014 The factors affecting the inter-individual differences in sperm freezability is a major line of research in spermatology. Poor sperm freezability is mainly characterised by a low sperm velocity, which in turn is associated with low fertility rates in ...
José Luis Ros-Santaella +2 more
doaj +1 more source
Update of the risk assessment on emerging and novel brominated flame retardants in food
EFSA Journal, Volume 24, Issue 7, July 2026.Abstract The European Commission asked EFSA to update its 2012 risk assessment on Emerging and Novel brominated flame retardants (BFRs) in food. Since the previous Opinion, further information was collected for a total of 27 BFRs. The CONTAM Panel concluded that TDBPP, DBPNG and TBNPA are considered genotoxic and carcinogenic.
EFSA Panel on Contaminants in the Food Chain (CONTAM) +33 more
wiley +1 more source
Evaluation of sperm morphometry of rabbits (Oryctolagus cuniculus f. domesticus)
Reproduction in Domestic Animals, 2020 ContentsSperm morphology and morphometry are considered parameters in fertility diagnosis. They are especially important in the case of species for which there is no standard with respect to morphometric sperm parameters. It is then crucial to apply the staining technique that has the least influence on the sperm structure and provides the most ...
Olga Szeleszczuk +5 more
openaire +2 more sources
Male scorpionflies assess the amount of rival sperm transferred by females' previous mates [PDF]
, 2007 Engqvist L. Male scorpionflies assess the amount of rival sperm transferred by females' previous mates. Evolution. 2007;61(6):1489-1494.Theory predicts that when sperm compete numerically, selection will favor males who vary the number of sperm they ...
Engqvist, Leif ; https://orcid.org/
core +1 more source
Competent Non‐Native Alternative Host Reduces Infection Success in a Generalist Parasite
Ecology and Evolution, Volume 16, Issue 6, June 2026.In this study, we experimentally assessed how the addition of a non‐native alternative host affects the infection success of the larval generalist trematode, Diplostomum pseudospathaceum, in fish intermediate hosts. Our results demonstrate that the presence of alternative hosts, especially the non‐native ones, can reduce parasite transmission through ...
Markéta Ondračková +3 more
wiley +1 more source