Results 161 to 170 of about 487,985 (362)
SpeHeatal: A Cluster-Enhanced Segmentation Method for Sperm Morphology Analysis [PDF]
arXivThe accurate assessment of sperm morphology is crucial in andrological diagnostics, where the segmentation of sperm images presents significant challenges. Existing approaches frequently rely on large annotated datasets and often struggle with the segmentation of overlapping sperm and the presence of dye impurities.
arxiv
Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin
The Anatomical Record, EarlyView.Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley +1 more source
Evolution in reproductive tempo and investment across the Peromyscus radiation
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 339, Issue 1, Page 13-27, January 1, 2023., 2023 In this review, we summarize diversity among Peromyscus species and populations in a number of reproductive traits. including litter size. We examine associations with environmental variation (map, right). We also use a large dataset compiled from lab‐held colonies (violin ploots, right) of Peromyscus to test for species‐ and population‐level ...
Kathryn Wilsterman, Kirksey Cunningham
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The pygmy sperm whale (Kogia breviceps) possesses an exocrine gland associated with its false gill slit pigmentation pattern. The cervical gill slit gland is a compound tubuloalveolar gland that produces a holocrine secretion and displays maturational changes in size and secretory histology. While the morphology of the cervical gill slit gland
Tiffany F. Keenan +13 more
wiley +1 more source
Examination of some components of cephalopod and sperm-whale liver oils by the chromatographic method [PDF]
, 1953 R. M. Brachi
openalex +1 more source
CS3: Cascade SAM for Sperm Segmentation [PDF]
arXivAutomated sperm morphology analysis plays a crucial role in the assessment of male fertility, yet its efficacy is often compromised by the challenges in accurately segmenting sperm images. Existing segmentation techniques, including the Segment Anything Model(SAM), are notably inadequate in addressing the complex issue of sperm overlap-a frequent ...
arxiv
Digital holographic microscopy for the evaluation of human sperm structure [PDF]
Zygote / FirstView Article, pp 1-9, Cambridge University Press
2013, Published online: 07 March 2013, 2013 The morphology of the sperm head has often been correlated with the outcome of in vitro fertilization (IVF), and has been shown to be the sole parameter in semen of value in predicting the success of intracytoplasmic sperm injection (ICSI) and intracytoplasmic morphologically selected sperm injection (IMSI).
arxiv
RNA‐Based Biopesticides: Pioneering Precision Solutions for Sustainable Aquaculture in China
Animal Research and One Health, EarlyView.The Chinese dragon represents RNA biopesticides, which effectively counteract bacterial, viral, and parasitic threats, safeguarding aquatic life. This method is precise, focusing solely on harmful agents and sparing beneficial aquaculture species. Its innovative nature protects aquatic environments while reducing ecological footprint.
Yiran Huang +7 more
wiley +1 more source
Studies in the fertilisation of the eggs of a sea-urchin (Strongylocentrotus purpuratus) by blood-sera, sperm, sperm-extract, and other fertilising agents [PDF]
, 1912 T. Brailsford Robertson
openalex +1 more source
Stacked dense optical flows and dropout layers to predict sperm motility and morphology [PDF]
arXiv, 2019 In this paper, we analyse two deep learning methods to predict sperm motility and sperm morphology from sperm videos. We use two different inputs: stacked pure frames of videos and dense optical flows of video frames. To solve this regression task of predicting motility and morphology, stacked dense optical flows and extracted original frames from ...
arxiv