Results 51 to 60 of about 53,187 (205)

Soil carbon, nitrogen, and biological activity as affected by land use and grassland management across North Carolina

open access: yesSoil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Undisturbed land uses have the potential to enhance soil organic matter, but how and to what extent this occurs on private farms remains relatively unexplored. A cross‐sectional study of perennial grasslands and farm woodlots was undertaken across North Carolina to investigate stocks of soil organic C, total soil N, and soil‐test biological ...
Alan J. Franzluebbers
wiley   +1 more source

Natural Transfer of Viable Microbes in Space from Planets in the Extra-Solar Systems to a Planet in our Solar System and Vice-Versa

open access: yes, 2008
We investigate whether it is possible that viable microbes could have been transported to Earth from the planets in extra-solar systems by means of natural vehicles such as ejecta expelled by comet or asteroid impacts on such planets.
Cucinotta, Francis A.   +9 more
core   +1 more source

Meeting Livestock Protein and Amino Acids Needs With Edible Insects: A Critical Review

open access: yesSustainable Food Proteins, Volume 4, Issue 1, March 2026.
Comparison of the use of traditional protein sources (soybean meal and fish meal) and insects meal in monogastrics and aquaculture (created in BioRender. Luttenschlager, H. (2025) https://BioRender.com/ndztqxp) ABSTRACT The increasing demand for animal‐based protein has led to biodiversity loss, deforestation, pollution, and extensive land use, mainly ...
Hugo Luttenschlager   +3 more
wiley   +1 more source

Optimisation of a Kind of Vertical Axis Darrieus Turbine—Davidson Hill Venturi Cross-Flow Turbines

open access: yesEnergies
Vertical axis turbines (VATs) have grown in popularity over the past decade, owing to their lower cost of energy (CoE) when installed in remote offshore locations. The Davidson Hill Venturi system, as a kind of vertical axis tidal turbine technology, has
Han Wang, Mark Hill, Joseph Burchell
doaj   +1 more source

Intraspecific morphological variation between cultured and wild Clarias gariepinus (Burchell) (Clariidae, Siluriformes)

open access: yesArchives of Polish Fisheries, 2015
This study was designed to evaluate morphological differences between cultured and wild African catfish, Clarias gariepinus (Burchell). Fish samples were collected from the lower Benue River (axis in Makurdi), while cultured fish were obtained from the ...
Solomon Shola G.   +2 more
doaj   +1 more source

Artificial propagation of African catfish (Clarias gariepinus): the application of a single dose of pellets containing D-Ala6,Pro9NEt-mGnRH and dopamine inhibitor metoclopramide

open access: yesCzech Journal of Animal Science, 2004
The effects on reproduction of African catfish (Clarias gariepinus Burchell 1822) were investigated in three experiments conducted under controlled conditions, carp pituitary (at the dose of 4 mg/kg body weight) or Ovopel - a preparation that contains a ...
E. Brzuska
doaj   +1 more source

Exploring the Interior Structure of (16) Psyche Through Basin‐Scale Collisions

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Asteroid (16) Psyche, the largest member of the M/X‐type asteroids, may be the leftover core of a differentiated planetesimal. As such (16) Psyche will be explored in detail by NASA's discovery‐class Psyche mission in 2029. This will be the first mission to orbit a metal‐rich asteroid, or any asteroid in the 100–500 km size range.
Namya Baijal   +7 more
wiley   +1 more source

Cost-effectiveness of enhanced syphilis screening among HIV-positive men who have sex with men: a microsimulation model. [PDF]

open access: yesPLoS ONE, 2014
Syphilis co-infection risk has increased substantially among HIV-infected men who have sex with men (MSM). Frequent screening for syphilis and treatment of men who test positive might be a practical means of controlling the risk of infection and disease ...
Ashleigh R Tuite   +2 more
doaj   +1 more source

Growth response of Heterobranchus longifilis fingerlings fed with varying levels of dietary freshwater mussel (Aspatharia sinuata) [PDF]

open access: yes, 2005
A common bivalve: Freshwater mussel, Aspatharia sinuate was evaluated as a dietary protein supplement in the production diet for Heterobranchus longifilis fingerlings with mean body weight 8.34 plus or minus 10g reared in aquaria tanks.
Alatise, S.P.   +2 more
core  

Selling soldiering: Marketisation, gender complementarity and the promise of military femininity in 1990s Sweden

open access: yesGender &History, Volume 38, Issue 1, Page 406-424, March 2026.
Abstract This article examines the first large‐scale attempts to recruit women as soldiers and officers in 1990s Sweden, focusing on the techniques and promises employed by the Swedish Armed Forces (SAF). Building on a wide range of documents and audiovisual sources, we demonstrate how the SAF utilised various marketing techniques, including ...
Sanna Strand, Fia Cottrell‐Sundevall
wiley   +1 more source

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