Results 11 to 20 of about 14,563,165 (136)

Roads reduce amphibian abundance in ponds across a fragmented landscape

open access: yesGlobal Ecology and Conservation, 2021
Roads threaten animal species through habitat loss, fragmentation and degradation, and direct mortality. It is crucial to understand how species respond to linear infrastructure for effective conservation of animal communities in fragmented landscapes ...
Andrew J. Hamer   +4 more
doaj   +1 more source

Policy increasing security companies on the internet [PDF]

open access: yesEkonomski Pogledi, 2015
Enterprise Security on the Internet is of crucial importance for the business, irrespective of the fact that the cost of developing the solutions necessary for proper protection are often quite large.
Trajković Slaviša   +2 more
doaj   +1 more source

Preparation and ring-opening reactions of N-diphenylphosphinyl vinyl aziridines

open access: yesBeilstein Journal of Organic Chemistry, 2013
Predominantly (E)-N-diphenylphosphinyl vinyl aziridines are prepared by a reaction of N-diphenylphosphinyl imines with α-bromoallyllithium in the presence of freshly fused ZnCl2.
Ashley N. Jarvis   +3 more
doaj   +1 more source

The ambiguity of freemartinism diagnosis in cattle revealed by cytogenetic and molecular techniques

open access: yesCzech Journal of Animal Science, 2004
Nineteen heifers and three male co-twins, originating from heterosexual twin pregnancies, were analysed with the use of cytogenetic and molecular techniques.
J. Nowacka   +6 more
doaj   +1 more source

Imprinting a topological interface using Zeeman shifts in an atomic spinor Bose–Einstein condensate

open access: yesNew Journal of Physics, 2014
We propose to use spatial control of the Zeeman energy shifts in an ultracold atomic gas to engineer an interface between topologically distinct regions.
M O Borgh, J Lovegrove, J Ruostekoski
doaj   +1 more source

Identification of ripening-related genes in strawberry fruit by cDNA-AFLP

open access: yesInternational Journal of Horticultural Science, 2005
An RNA fingerprinting study of strawberry receptacle and achene tissue was performed to identify candidate genes involved in fruit ripening. Quantitative cDNA-AFLP was used to detect differential gene expression in green, white, pink and red stages of ...
A. Balogh   +4 more
doaj   +1 more source

Propagation of jundia Rhamdia quelen (Siluriformes: Heptapteridae) by applying the ovarian sperm injection method

open access: yesAquaculture Reports, 2020
We compared the effectiveness of the ovarian sperm injection method with that of the traditional one over the artificial propagation of jundia. Three experimental groups were set up containing seven females each.
István Ittzés   +5 more
doaj   +1 more source

Crystal structure of N-(3,5-benzenedicarboxy)-2,5-phenyl-3,4-(9,10-dihydroanthracen-diyl)-pyrrole—acetone—water (1:1:1), C38H25NO4 · C3H6O · H2O

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2003
C41H33NO6, triclinic, P1̅ (No. 2), a = 9.610(3) Å, b = 12.877(3) Å, c = 15.138(4) Å, α = 109.29(2)°, β = 105.16(2)°, γ = 94.24(2)°, V = 1680.0 Å3, Z = 2, Rgt(F) = 0.059, wRref(F2) = 0.161, T = 289 K.
Uytterhoeven K.   +3 more
doaj   +1 more source

Crystal structure of tris(N-(n-butyl)-4-methoxy-2-hydroxybenzaldimine)-tris(nitrato)lanthanum(III), La(C12H17NO2)3(NO3)3

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2003
C36H51LaN6O15, triclinic, P1̅̅ (No. 2), a = 11.455(2) Å, b = 13.859(3) Å, c = 14.101(4) Å, α = 98.50(2)°, β = 98.87(1)°, γ = 92.52(2)°, V = 2182.4 Å3, Z = 2, Rgt(F) = 0.035, wRref(F2) = 0.082, T = 289 K.
Van Meervelt L.   +3 more
doaj   +1 more source

Economic assessment at farm level of the implementation of deficit irrigation for quinoa production in the Southern Bolivian Altiplano

open access: yesSpanish Journal of Agricultural Research, 2013
In the Southern Bolivian Altiplano recent research has suggested to introduce deficit irrigation as a strategy to boost quinoa yields and to stabilize it at 2.0 ton ha-1.
J. Cusicanqui   +5 more
doaj   +1 more source

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