Results 61 to 70 of about 143,386 (239)

Recently Evolved, Stage‐Specific Genes Are Enriched at Life‐Stage Transitions in Flies

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 344, Issue 7, Page 428-441, November 2025.
We discovered that 20%–30% of protein‐coding genes in Drosophila melanogaster and Aedes aegypti are only expressed during specific stages of development. Surprisingly, many of these stage‐specific genes are newly evolved, unique to flies and mosquitoes, shedding light on how insect development has evolved over time.
Andreas Remmel   +3 more
wiley   +1 more source

Analysis of Elastohydrodynamic Lubrication Characteristic of the Roller Enveloping Hourglass Worm Drive

open access: yesJixie chuandong, 2020
To study the elastohydrodynamic lubrication(EHL) characteristic of the roller enveloping hourglass worm drive, the line contact isothermal mathematical model is established based on the research of meshing theory of the roller enveloping hourglass worm ...
Taoran Zhang, Lingyu Li
doaj  

A Study on the Grinding of the Hourglass Worm Wheel.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1998
The high performance of the hourglass worm gearing is well known among all types of worm gearings, especially after the developement of HEDCON【○!R】 worm gear reducer. Despite its high performance, the difficulty in manufacturing the hob is one of the obstacles of production and it has been one of the themes of study.
openaire   +2 more sources

Neurobiology of mitochondrial dynamics in sleep

open access: yesThe Journal of Physiology, Volume 603, Issue 22, Page 6747-6762, November 15, 2025.
Abstract figure legend In neurons, variations in sleep history are accompanied by alterations in mitochondrial dynamics, including changes in size, fission and fusion events, the emergence of extra‐large and ‘hourglass’‐shaped mitochondria, mitophagy, and modifications in intracristal space volume and in the number of contact sites between mitochondria
Raffaele Sarnataro
wiley   +1 more source

Super‐Resolution Microscopy in Tissue Engineering

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 19, October 6, 2025.
Super‐resolution microscopy (SRM) has advanced tissue engineering by providing nanoscale insights into cellular interactions. It reveals detailed cell membrane structures, tracks vesicle and virus entry, and visualizes the cytoskeleton. SRM also improves understanding of cell migration, facilitating tissue regeneration, vascularization, immune ...
Navid Rabiee   +2 more
wiley   +1 more source

Overview of the Fish Diversity of Indian Waters [PDF]

open access: yes, 2018
Fishing is one of the oldest human activities and it developed gradually, when our ancestors moved from the collection of plants and animals to hunting by using tools and weapons. The oldest fishing implements so far identified are harpoons, found in
Dinesh Kumar, S, Nair, Rekha J
core  

Diabetic Kidney Disease‐Associated Pathological Angiogenesis: The Role of Aquaporin‐1

open access: yesJournal of Diabetes, Volume 17, Issue 10, October 2025.
Hyperglycemia upregulates AQP1 expression in renal endothelial cells, promoting abnormal angiogenesis. Structurally and functionally immature vessels lead to glomerular capillary leakage, proteinuria, and progressive renal injury. Targeting AQP1 may attenuate abnormal angiogenesis in DKD and slow disease progression.
Fengyi Zhang   +9 more
wiley   +1 more source

Nearshore marine ecology at Hutchinson Island, Florida: 1971-1974. VI. plankton dynamics, 1971-1973, VII. phytoplankton 1971-1973, VIII. zooplankton, 1971-1973, IX. diel plankton, 1973-1974, X. benthic algae species list [PDF]

open access: yes, 1979
(Document has 122 pages.
Glass, Brian M.   +6 more
core  

The Vertebral Column of Flatfish: A Review

open access: yesReviews in Aquaculture, Volume 17, Issue 4, September 2025.
ABSTRACT Flatfish (Pleuronectiformes) encompass fascinating fish species known for their high gastronomical value, rearing performances, and market prices, which attract both economic and scientific interest. Despite these attributes, flatfish exhibit unique morphological, developmental, and biological features, as well as distinctive swimming ...
A. M. de Azevedo   +5 more
wiley   +1 more source

In the mind's eye : thought-pictures and ethereal presences [PDF]

open access: yes, 2003
"The fascination with dreams and states of inwardness in the Victorian era derived part of its character from models of mind, descending from classical philosophy and from seventeenth-century interpretations of the tradition, but these ideas are enmeshed
Warner, Marina
core   +2 more sources

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