Results 111 to 120 of about 51,080 (243)

Macronutrient composition in pollen affects development and survival in wild bees

Physiological Entomology, EarlyView.
Small carpenter bees (Ceratina calcarata) were reared on diets formulated with black poplar and dandelion pollen, while closely monitoring developmental metrics, lipid content and survival. Macronutrient analyses on both pollen types revealed dandelion pollen contained lower levels of protein, essential amino acids and several fatty acids, which ...
Khara W. Stephen, Sandra M. Rehan
wiley   +1 more source

A pervasive typographical error in an equation for calculating nectar density is likely to have limited consequences

Journal of Pollination Ecology
Analysis of floral nectar reward often involves converting nectar volume to sugar mass. Nectar density depends on nectar sugar concentration, and has been empirically measured.
Hamish Symington, Joris Rockx
doaj   +1 more source

Field‐based evaluation of glass cullet as a supplementary sediment source for coastal restoration

Restoration Ecology, EarlyView.
There is an ever‐increasing demand for sand to support projects like beach nourishment and dune restoration, but dredging and mining sand causes environmental damage. Demonstrating the environmental and ecological compatibility of crushed and ground glass known as cullet to support coastal restoration projects could simultaneously divert waste from ...
Lily S. Pfeifer, Charles A. Schutte
wiley   +1 more source

Compact Dual-Wavelength Optical Fiber Sensor for the Simultaneous Measurement of the Refractive Index and Temperature of Liquid Samples

Chemosensors
This study proposes the development of a dual-wavelength optical fiber sensor (DWOFS) that integrates two optical fiber structures in a multimode transmission line to measure the refractive index and temperature of a liquid concurrently. One structure is
Karla Ivonne Serrano-Arévalo, Erika Rodríguez-Sevilla, Monserrat Alonso-Murias, Héctor Pérez-Aguilar, David Monzón-Hernández   +4 more
doaj   +1 more source

On-the-go yield and sugar sensing in grape harvester [PDF]

, 2009
This paper summarises the results of a joint R+D project between university and industry. The study was developed at the Alt Penedès region, in Barcelona, during the 2006 and 2007 (on 3, 22, 69 fields respectively).
Baguena Isiegas, Eva, Barreiro Elorza, Pilar, Sort, X., Torres, M., Ubalde, J.M., Valero Ubierna, Constantino   +5 more
core   +1 more source

Effect of internal and external cooling on high‐intensity intermittent cycling performance and cognitive function in the heat

Experimental Physiology, EarlyView.
Abstract We investigated the effect of internal and external cooling on high‐intensity intermittent cycling performance and cognitive function in the heat. Twenty‐nine males completed a control trial (CON) and a cooling trial (ice slurry and ice collar; COOL) in the heat (33°C, 50% relative humidity) involving a 40 min intermittent cycling protocol ...
Stacey Cowe, Simon B. Cooper, Rachel Malcolm, Caroline Sunderland   +3 more
wiley   +1 more source

Comparative Analysis of Salinity Readings for Water Quality Monitoring between IoT-Based Sensor Systems and Refractometer

Jurnal Teknologi dan Sistem Informasi
Salinity is among the factors that affect aquaculture water quality, along with pH, temperature, dissolved oxygen (DO), and ammonia. The osmotic pressure is influenced by salinity, which directly affects the aquatic biota.
Hadi Hariyanto, Gilang Ramadhan
doaj   +1 more source

No difference in mean middle cerebral artery blood velocity responses between lower‐ and upper‐body unilateral resistance exercise in untrained individuals

Experimental Physiology, EarlyView.
Abstract Dynamic resistance exercise (RE) produces sinusoidal fluctuations in blood pressure that are mirrored by middle cerebral artery blood velocity (MCAv). However, whether lower‐ or upper‐body RE elicits a differential cerebrovascular response has not yet been examined.
Stephanie Korad, Toby Mündel, Blake G. Perry   +2 more
wiley   +1 more source

The effect of repeated hot water immersion on microvascular function, glycaemic control and inflammation in White European and South Asian males

Experimental Physiology, EarlyView.
Abstract Individuals of South Asian (SA) descent display a higher risk for cardiovascular disease and type 2 diabetes mellitus than their White European (WE) counterparts. Heat therapy, such as hot water immersion (HWI), can improve microvascular function and glycaemic control, although effects across racial groups are unknown.
David Bellini, Alex Lloyd, Christof A. Leicht, Stephen J. Bailey, Lewis J. James, Matthew J. Maley   +5 more
wiley   +1 more source

Compact Digital Holography-Based Refractometer for Non-Invasive Characterization of Transparent Media

Optics
This work presents a compact refractometric system based on In-Line Digital Holography (ILDH) for the non-invasive characterization of transparent media, encompassing both liquids and high-refractive-index optical glasses.
Brandon R. Sulvarán-Salmoreno, Diego Torres-Armenta, Dulce Gonzalez-Utrera, David Moreno-Hernández   +3 more
doaj   +1 more source