Results 161 to 170 of about 30,178 (283)

Contradicting Kuhn's Popular Notion of Scientific Revolution: Conservative Revolutionaries in the History of Biology

open access: yesNatural Sciences, Volume 6, Issue 3, July 2026.
ABSTRACT Proposing the concept of a conservative revolutionary generally and using the examples of Gregor Mendel, Max Delbrück, and Eric Davidson, I fundamentally call into question Thomas Kuhn's ideas of scientific revolutions. I also highlight some problematic consequences of the increasing appreciation of Kuhn's work among scientists and show that ...
Ute Deichmann
wiley   +1 more source

sea urchin

open access: yes, 1977
sea urchin_Sea Urchin._PRINTED ITEM W.

core  

Kelp forests modulate fish community dynamics and responses to ocean warming

open access: yesJournal of Ecology, Volume 114, Issue 7, July 2026.
Our spatially resolved benchmark indicates that abundant kelp cover can delay tropicalisation by lowering the realised thermal affinity of reef‐fish communities, while increases in fish biodiversity may signal the early stages of this process. Abstract Kelp forests are foundation habitats that create structurally complex and biodiverse marine ...
Bianca Reis   +3 more
wiley   +1 more source

Microtubule Inner Protein CFAP77 Contributes to Sperm Motility and Male Fertility in Mice

open access: yesAndrology, Volume 14, Issue 5, Page 1240-1248, July 2026.
ABSTRACT Background Sperm motility is essential for male fertility, and its regulation is dependent on the structural integrity of the axoneme. The axoneme consists of a conserved “9+2” microtubule arrangement and is supported by microtubule inner proteins. However, the functional significance of many microtubule inner proteins remains unclear.
Haoting Wang   +4 more
wiley   +1 more source

Sea Urchins [PDF]

open access: yesBulletin of the Ecological Society of America, 2008
openaire   +2 more sources

North American Sea Urchin Fishery Management Strategies: Their Applicability to the Maine Green Sea Urchin Fishery

open access: yes, 1995
The Maine green sea urchin fishery has experienced dramatic growth since its inception in 1987. Landings have increased from 1.4 million pounds in 1987 to 41.6 million pounds in 1993 (NMFS, Fisheries Statistics). The reproductive gonads, referred to as
Sullivan, Kate
core  

Unravelling Past Population Events in Diatoms With Genomic Based Demographic Inferences

open access: yesMarine Ecology, Volume 47, Issue 4, July/August 2026.
ABSTRACT The biological productivity in the Southern Ocean is mainly driven by the abundance of phytoplankton, which changes with seasons, fluctuations in sea ice and iron as well as light availability. The distribution of biological productivity is further modulated by ocean currents.
Robin L. van Dijk   +5 more
wiley   +1 more source

MARINE RESERVES WITH ENDOGENOUS PORTS: EMPIRICAL BIOECONOMICS OF THE CALIFORNIA SEA URCHIN FISHERY

open access: yes
Marine reserves are gaining substantial public support as tools for commercial fisheries management Harvest sector responses will influence policy performance, yet biological studies often depict harvester behavior as spread uniformly over fishing ...
Wilen, James E., Smith, Martin D.
core  

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

open access: yesAdvanced Functional Materials, Volume 36, Issue 47, 11 June 2026.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy