Results 21 to 30 of about 251,988 (338)

Hunting and mountain sheep: Do current harvest practices affect horn growth?

open access: yesEvolutionary Applications, 2019
The influence of human harvest on evolution of secondary sexual characteristics has implications for sustainable management of wildlife populations.
Tayler N. LaSharr   +15 more
doaj   +1 more source

Revisiting Horn’s problem [PDF]

open access: yesJournal of Statistical Mechanics: Theory and Experiment, 2019
We review recent progress on Horn's problem, which asks for a description of the possible eigenspectra of the sum of two matrices with known eigenvalues. After revisiting the classical case, we consider several generalizations in which the space of matrices under study carries an action of a compact Lie group, and the goal is to describe an associated ...
Coquereaux, Robert   +2 more
openaire   +4 more sources

Frequencies of genes for coat colour and horns in Nordic cattle breeds

open access: yesGenetics Selection Evolution, 2000
Gene frequencies of coat colour and horn types were assessed in 22 Nordic cattle breeds in a project aimed at establishing genetic profiles of the breeds under study. The coat colour loci yielding information on genetic variation were: extension, agouti,
Lien Sigbjørn   +7 more
doaj   +1 more source

Probe modeling for millimeter-wave integrated-circuit horn antennas [PDF]

open access: yes, 1992
Integrated-circuit probe-excited horn-antenna arrays etched in silicon are well developed. They are a very promising class of antenna arrays for milli-meter and submillimeter applications.
Chiao, Jung-Chih   +3 more
core   +1 more source

Cloning antibodies from single cells in pooled sequence libraries by selective PCR.

open access: yesPLoS ONE, 2020
Antibodies function by binding to antigens. Antibodies must be cloned and expressed to determine their binding characteristics, but current methods for high-throughput antibody sequencing yield antibody DNA pooled from many cells and do not readily ...
Felix Horns, Stephen R Quake
doaj   +1 more source

Cutaneous Horn of Prepucial Skin on Pre-existing Lichen Sclerosus in a Young Male: A Rare Presentation [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2020
Cutaneous horn of penis is rare. Cutaneous horns are generally found over sun exposed areas of body after fifth decade of life. Penile horns are hyperkeratotic lesions which are secondary to chronic irritation.
Amit Kumar Singh   +2 more
doaj   +1 more source

Insulation Coordination of Arcing Horns on HVDC Electrode Lines: Protection Performance Evaluation, Influence Factors and Improvement Method

open access: yesEnergies, 2018
Arcing horns are widely used in high voltage overhead lines to protect insulator strings from being destroyed by the free burning arcs caused by lightening faults.
Xiandong Li, Hua Li, Yi Liu, Fuchang Lin
doaj   +1 more source

Precise staging of beetle horn formation in Trypoxylus dichotomus reveals the pleiotropic roles of doublesex depending on the spatiotemporal developmental contexts. [PDF]

open access: yesPLoS Genetics, 2019
Many scarab beetles have sexually dimorphic exaggerated horns that are an evolutionary novelty. Since the shape, number, size, and location of horns are highly diverged within Scarabaeidae, beetle horns are an attractive model for studying the evolution ...
Shinichi Morita   +6 more
doaj   +1 more source

Prominence Mass Supply and the Cavity [PDF]

open access: yes, 2013
A prevalent but untested paradigm is often used to describe the prominence-cavity system: the cavity is under-dense because it is evacuated by supplying mass to the condensed prominence.
Gibson, Sarah   +4 more
core   +3 more sources

The Effect of Adipose Tissue-Derived Mesenchymal Stem Cells on Regeneration of Uterine Scars

open access: yesGynecology Obstetrics & Reproductive Medicine, 2017
OBJECTIVE: The mesenchymal stem cell application to uterine healing scars may provide better tissue strength. STUDY DESIGN: Hysterectomy was performed on rats, and the wound recovery as a result of primary suturing was evaluated as tissue stretching and ...
R. Ada Bender   +5 more
doaj   +1 more source

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