Results 51 to 60 of about 2,953,114 (317)

Spatial Relation of Bumblebees (Hymenoptera-Apidae) with Host-Plant and their Conservation Issues: An Outlook from Urban Ecosystem of Kathmandu Valley, Nepal

European Journal of Ecology, 2019
Ecology and conservation status of bumblebee species remains poorly understood, especially in rapidly degrading urban ecosystems, which is important considering the role of bumblebees in the pollinations. We collected more than 200 bumblebee (Bombus spp.)
Daya Ram Bhusal, Kishor Chandra Ghimire, Sabina Dulal, Pratikshya Baniya, Sudeep Thakuri   +4 more
doaj   +1 more source

The abundance of lensing protoclusters

, 2008
Weak gravitational lensing provides a potentially powerful method for the detection of clusters. In addition to cluster candidates, a large number of objects with possibly no optical or X-ray component have been detected in shear-selected samples.
Anson D'Aloisio, Bahcall, Barkana, Bond, Brainerd, Casas-Miranda, Cen, Cooray, Cuesta, Dahle, Dahle, Eke, Eke, Erben, Fan, Haiman, Hamana, Hennawi, Henry, Holder, Kaiser, Lacey, Lilje, Majumdar, Mantz, Maturi, Maturi, McQuinn, Miralles, Navarro, Navarro, Navarro, Nord, Pace, Prada, Press, Priyamvada Natarajan, Reblinsky, Reiprich, Rowley, Schirmer, Schirmer, Schneider, Seitz, Seljak, Sheth, Sheth, Steven R. Furlanetto, Takada, Umetsu, Viana, von der Linden, Weinberg, White, White   +54 more
core   +1 more source

Mitochondrial fatty acid oxidation is stimulated by red light irradiation

FEBS Letters, EarlyView.
Light at different wavelengths has distinct effects on keratinocyte viability and metabolism. UVA light abrogates metabolic fluxes. Blue and green light have no effect on metabolic fluxes, while red light enhanced oxidative phosphorylation by promoting fatty acid oxidation. Keratinocytes are the primary constituents of sunlight‐exposed epidermis.
Manuel Alejandro Herrera, Camille C. Caldeira da Silva, Maiza Von Dentz, Mauricio S. Baptista, Alicia J. Kowaltowski   +4 more
wiley   +1 more source

Horizontal distribution of invertebrate larvae around the oceanic island of Gran Canaria: the effect of mesoscale variability

Scientia Marina, 2009
In October 1991, the horizontal distribution of invertebrate larvae was studied in the waters surrounding the island of Gran Canaria (Canary Islands).
José María Landeira, Fernando Lozano-Soldevilla, Santiago Hernández-León, Eric Desmond Barton   +3 more
doaj   +1 more source

Diversity and Relative Abundance of Ichthyofauna in Manasbal Lake of the Kashmir Himalayas, India

Croatian Journal of Fisheries, 2022
Diversity, abundance and distribution pattern of the fish fauna are important aspects that need to be considered in order to frame the conservation and management strategies in any water body.
Andrabi Saima, Bakhtiyar Yahya, Parveen Muni, Arafat Mohammad Yasir   +3 more
doaj   +1 more source

Abundance

The Yale Review
Citation: 'abundance' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.14415 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
  +7 more sources

Ion-retarding lens improves the abundance sensitivity of tandem mass spectrometers [PDF]

, 1969
Ion-retarding lens which increases the abundance sensitivity of tandem magnetic-analyzer mass spectrometers measures isotopes of low abundance in mass positions adjacent to isotopes of high abundance.
Kaiser, K. A., Stevens, C. M.
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Archéologie de l’utopie

Kentron, 2008
The “Utopian propensity” by which men long for an ideal society where neither need nor struggle would occur, where even death is gentle, is noticeable in early Archaic Greek poetry.
Michelle Lacore
doaj   +1 more source

A Bayesian Estimate of the Primordial Helium Abundance [PDF]

, 1997
We introduce a new statistical method to estimate the primordial helium abundance, Y_p from observed abundances in a sample of galaxies which have experienced stellar helium enrichment.
Craig J. Hogan, Keith A. Olive, Kunth D., Pagel B. E. J., Sean T. Scully   +4 more
core   +2 more sources