Results 51 to 60 of about 2,657 (184)

Detailed structural analysis of lipids directly on tissue specimens using a MALDI-SpiralTOF-Reflectron TOF mass spectrometer. [PDF]

PLoS ONE, 2012
Direct tissue analysis using a novel tandem time-of-flight (TOF-TOF) mass spectrometer is described. This system consists of a matrix-assisted laser desorption/ionization ion source, a spiral ion trajectory TOF mass spectrometer "SpiralTOF (STOF)", a ...
Shuichi Shimma, Ayumi Kubo, Takaya Satoh, Michisato Toyoda   +3 more
doaj   +1 more source

Working‐Class Muscles? Co‐Operative Gyms in Interwar Britain

History, EarlyView.
Abstract The Health & Strength League's network of co‐operative gymnasiums constituted one of interwar Britain's most significant yet overlooked physical culture institutions, affiliating over 800 gyms across Britain and Ireland by 1939. Drawing on Health & Strength magazine's editorial content and reader contributions, this article argues that these ...
CONOR HEFFERNAN
wiley   +1 more source

Behaviour of Human Hemodynamics under Microcavity –a Proposal for the 7th German Parabolic Flight Campaign

Advances in Electrical and Electronic Engineering, 2005
All astronauts often feel uncomfortable during first encounter microgravity because of fluid shifts from the lower extremities to the head caused by weightlessness.
Vladimir Blazek, Markus Hülsbusch, Markus Herzog, Claudia R. Blazek, Hanns Christian Gunga, Rainer Kowoll, Waltraud Fraszl   +6 more
doaj  

Gravity and Known Size Calibrate Visual Information to Time Parabolic Trajectories

Frontiers in Human Neuroscience, 2021
Catching a ball in a parabolic flight is a complex task in which the time and area of interception are strongly coupled, making interception possible for a short period.
Borja Aguado, Joan López-Moliner
doaj   +1 more source

PARTY‐STATE URBANISM: Coevolution of Local State Capacity and Strategic Alliances in Shenzhen

International Journal of Urban and Regional Research, EarlyView.
Abstract What is distinct about Chinese urban governance? Classic theories predict that when the central state retreats from resource allocation, capacity‐strained local governments must form alliances with non‐state actors, thereby diluting state power. In China, however, state power remains dominant despite decentralization.
Yunhan Wen
wiley   +1 more source

Influence of elevation, climate, snowmelt and floral abundance on body size of solitary bees

Ecological Entomology, EarlyView.
We measured body size in bee species from a 10‐year specimen collection from Colorado sub‐alpine meadows (2450–3450 m) and tested effects of elevation and annual snowmelt, climate and floral abundance. 2 out of 4 bee species collected across a broad elevation range showed a decline in body size with higher elevations; the other two showed no effect ...
Lachlan C. Jones, Melanie R. Kazenel, Kristin Conrad, Jane E. Ogilvie, Ian K. Breckheimer, Rebecca E. Irwin   +5 more
wiley   +1 more source

Is sleep affected after microgravity and hypergravity exposure? A pilot study

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is known to be affected in space travel and in residents of the international space station. But little is known about the direct effects of gravity changes on sleep, if other factors, such as sleep conditions, are kept constant. Here, as a first exploration, we investigated sleep before and after exposure to short bouts of microgravity ...
Barbara Le Roy, Aurore Jouvencel, Anika Friedl‐Werner, Ludmila Renel, Youcef Cherchali, Raouf Osseiran, Ernesto Sanz‐Arigita, Jean‐René Cazalets, Etienne Guillaud, Ellemarije Altena   +9 more
wiley   +1 more source

Understanding marine biodiversity patterns and drivers: The fall of Icarus

Marine Ecology, EarlyView.
Abstract Biodiversity patterns are fundamental in our understanding of the distribution of life, ecosystem function, and conservation. In this concept analysis, A survey of the existing knowledge on marine biodiversity patterns and drivers across latitudes, longitudes, and depths indicates that none of the postulated patterns represent a rule.
Roberto Danovaro
wiley   +1 more source

Evaluating the Suitability of Perfusion-Based PD Probes for Use in Altered Gravity Environments

Biosensors
Measurable changes in electrophysiology have been documented in spaceflight, creating a pathway for disease genesis and progression in astronauts. These electrophysiology changes can be measured using potential difference (PD).
Madelyn MacRobbie, Vanessa Z. Chen, Cody Paige, David Otuya, Aleksandra Stankovic, Guillermo Tearney   +5 more
doaj   +1 more source

A Natural History of ‘Annoyances’: Knowing Weeds and Weeding Knowledge in the Early Royal Society and its ‘Georgicall Committee’

Renaissance Studies, EarlyView.
ABSTRACT Seventeenth‐century virtuosi often figured themselves as epistemic weeders, grubbing up rank thickets of accumulated error. In this article, I argue that these metaphors were unnerved by the shifting status of weeds—ostensibly unwanted plants from the margins of cultivated space, unploughed land or the disturbed soils between growing crops—in ...
Francis Taylor
wiley   +1 more source