Results 31 to 40 of about 7,710 (226)

Individual identification of flapper skate Dipturus intermedius using a baited camera lander

open access: yesEndangered Species Research, 2018
The ability of baited remote underwater video (BRUV) landers to attract and identify individual flapper skates Dipturus intermedius based on their spot patterns was tested within the Loch Sunart to Sound of Jura Marine Protected Area (MPA).
Benjamins, S   +3 more
doaj   +1 more source

Feeding ecology of Bathyraja macloviana (Rajiformes, Arhynchobatidae): a polychaete-feeding skate from the South-west Atlantic

open access: yesScientia Marina, 2005
The present paper analyses the diet, feeding strategy and niche width of B. macloviana in a sector of the Argentinean Continental Shelf (ACS). Individuals (n = 147) were collected from 43 sampling stations in late summer and autumn 2001.
Ezequiel Mabragaña   +2 more
doaj   +1 more source

Revisiting mechanics of ice–skate friction: from experiments at a skating rink to a unified hypothesis

open access: yesJournal of Glaciology, 2022
The mechanics underlying ice–skate friction remain uncertain despite over a century of study. In the 1930s, the theory of self-lubrication from frictional heat supplanted an earlier hypothesis that pressure melting governed skate friction. More recently,
James H. Lever   +5 more
doaj   +1 more source

Complete mitochondrial DNA sequence of Norwegian skates (Raja brachyuran Lafont, 1871) imported to Korea

open access: yesMitochondrial DNA. Part B. Resources, 2021
In this study, the complete mitochondrial genome of Norwegian skates imported to Korea was sequenced with a circular molecule of 17,121 bp, which consisted of 13 protein-coding genes (PCGs), 2 ribosomal RNAs, 22 transfer RNA genes, and a control region ...
Moo-Sang Kim   +5 more
doaj   +1 more source

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga   +4 more
wiley   +1 more source

The Drivers of Mesozoic Neoselachian Success and Resilience

open access: yesBiology
The modern diversity of sharks, skates, and rays (Neoselachii) is the result of various diversification and extinction events during the Mesozoic (252–66 Ma).
Manuel Andreas Staggl   +6 more
doaj   +1 more source

Trends in the abundance of Celtic Sea demersal fish: Identifying the relative importance of fishing and environmental drivers

open access: yesFrontiers in Marine Science, 2022
The Celtic Sea is a productive fishing ground, therefore identifying the relative importance of fishing and environmental factors on fish stock dynamics is crucial for developing our understanding of sustainable yields and to operationalize Ecosystem ...
Jed Kempf   +4 more
doaj   +1 more source

Improvement in Patient‐Reported Outcomes, High Rate of Return to Sport, and Secondary Surgery Rate Ranging From 0% to 9.8% After Hip Arthroscopy in Dancers and Athletes in Flexibility Sports: A Systematic Review

open access: yesArthroscopy, Sports Medicine, and Rehabilitation, EarlyView.
Purpose To systematically review and report patient‐reported outcome measures (PROMs), rates of return to sport, and secondary surgeries in dancers and flexibility sport athletes who underwent hip arthroscopy. Methods Using the 2020 Preferred Reporting Items for Systematic Reviews and Meta‐Analyses criteria, a systematic review was performed with a ...
David R. Maldonado   +2 more
wiley   +1 more source

Reflex seizures and epilepsy surgery: A network approach case‐based exploration

open access: yesEpileptic Disorders, EarlyView.
Abstract Context Reflex seizures (RS) are defined by their consistent provocation by specific stimuli, encompassing a broad range from elementary sensory inputs to complex cognitive tasks. While RS are often encountered in clinical practice, their surgical management remains sparsely reported and poorly systematized.
Olivier Aron   +6 more
wiley   +1 more source

Czy w Gnieźnie wszyscy jeździli na łyżwach? Łyżwy z osady Targowisko w Gnieźnie – przyczynek do sposobów ich użytkowania w okresie średniowiecza

open access: yesSlavia Antiqua, 2014
Did Everybody in Gniezno Ice-Skate? Ice Skates from the Settlement Targowisko in Gniezno – on the Means of Their Use in the Middle Ages and Not Only When writing the present article, the question was posed how common the use of ice skates had been in ...
Kamilla Waszczuk   +3 more
doaj   +1 more source

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