Results 31 to 40 of about 87,245 (163)

Strong gender differences in reproductive success variance, and the times to the most recent common ancestors

, 2012
The Time To the Most Recent Common Ancestor (TMRCA) based on human mitochondrial DNA (mtDNA) is estimated to be twice that based on the non-recombining part of the Y chromosome (NRY).
Barber, Bateman, Baumeister, Bowles, Burkart, Campbell, Cann, Coates, Cox, Darcet, Didier Sornette, Dunbar, Eriksson, Fisher, Geary, Gurven, Hammer, Hammer, Hedrick, Helgason, Hill, Hill, Hon, Ingman, Jasienska, Konner, Kuo, Langergraber, Marlowe, Marlowe, Maroussia Favre, Moran, Moran, Niederle, Ogas, Orians, Pritchard, Seielstad, Sutherland, Tang, Thomson, Tremblay, Verner, Wakeley, Wilder, Wilder, Wilkins, Wright, Zahavi   +48 more
core   +1 more source

An in-host model of HIV incorporating latent infection and viral mutation [PDF]

, 2015
We construct a seven-component model of the in-host dynamics of the Human Immunodeficiency Virus Type-1 (i.e, HIV) that accounts for latent infection and the propensity of viral mutation. A dynamical analysis is conducted and a theorem is presented which
A. Perelson, A. Perelson, A. Perelson, C. Parkinson, L. Rong, L. Rong, L. Rong, M. Nowak, P. Roemer, R. Shonkwiler, S. Pankavich   +10 more
core   +1 more source

A review on epidemic models in sight of fractional calculus

Alexandria Engineering Journal, 2023
Biomathematics has become one of the most significant areas of research as a result of interdisciplinary study. Chronic diseases sometimes referred to as non-communicable and communicable diseases, are conditions that develop over an extended period as a
Kottakkaran Sooppy Nisar, Muhammad Farman, Mahmoud Abdel-Aty, Jinde Cao   +3 more
doaj   +1 more source

Variation in spawning phenology within salmon populations influences landscape‐level patterns of brown bear activity

Ecosphere, 2019
Animal consumers track spatial variation in resource phenology (i.e., resource waves) to prolong their access to ephemeral foods. While recent work has revealed how animals move across landscapes to exploit phenological variation among discrete foraging ...
William W. Deacy, William B. Leacock, Jack A. Stanford, Jonathan B. Armstrong   +3 more
doaj   +1 more source

Incorporation of awareness programs into a model of the spread of HIV/AIDS among people who inject drugs

Engineering Reports, 2023
Mathematical modeling techniques have been used extensively during the human immunodeficiency virus (HIV) epidemic. Drug injection causes increased HIV spread in most countries globally.
Maha Alsharari, David Greenhalgh
doaj   +1 more source

Analyzing the Reproductive Characteristics of the Naked Carp Gymnocypris Przewalskii (Kessler) Based on the Oxygen Isotopes of Otolith Core Using SHRIMP

Yankuang ceshi, 2023
BACKGROUNDIt is of great significance to study the breeding environment of the naked carp in Qinghai Lake for the conservation and restoration of natural habitat. The naked carp is the only economic species in Qinghai Lake, colloquially called “Huang Yu”,
Ling ZHOU, Linbo QIAN, Sumei ZHAO, Xiulan ZHANG, Yinglie LIU, Qiaoling TANG, Jie YUAN   +6 more
doaj   +1 more source

Analytical training in epidemiological research for Medicine students

Revista Electrónica Educare, 2016
The Medicine students need to increase their research skills. Therefore, there is a main goal to train the fifth year students in epidemiological analysis methods during educational activities in work hours.
José Aureliano Betancourt-Bethencourt, Luis Acao-Francois, Yanira González-Ronquillo   +2 more
doaj   +1 more source

Finding a Mate With No Social Skills

, 2015
Sexual reproductive behavior has a necessary social coordination component as willing and capable partners must both be in the right place at the right time.
Carter C., Inada Y., Levenshtein V. I., Marriott C., Penrose M., Weis A.   +5 more
core   +1 more source

Affinity Paths and Information Diffusion in Social Networks [PDF]

, 2011
Widespread interest in the diffusion of information through social networks has produced a large number of Social Dynamics models. A majority of them use theoretical hypothesis to explain their diffusion mechanisms while the few empirically based ones ...
Albert, Ball, Bass, Boccaletti, Callaway, Daley, Ebel, Eckmann, Esteban Moro, Feld, Frenken, Galam, Gomez-Rodriguez, Granovetter, Guardiola, Guimerá, Harris, Hethcote, Jackson, José Luis Iribarren, Katz, Lazer, Leskovec, Liben-Nowell, Liu, McPherson, Nekovee, Newman, Newman, Newman, Niu, Pastor-Satorras, Piraveenan, Singla, Sznajd-Weron, Van den Bulte, Vilpponen, Watts, Watts, Watts   +39 more
core   +1 more source

Simulated ecology-driven sympatric speciation

, 2001
We introduce a multi-locus genetically acquired phenotype, submitted to mutations and with selective value, in an age-structured model for biological aging.
A. Pekalski, C. A. Tauber, D. Lack, G. A. de Medeiros, I. Mróz, J. Maynard Smith, J. Roughgarden, J. Roughgarden, J. S. Sá Martins, J. S. Sá Martins, P. R. Grant, P. R. Grant, P. T. Boag, P. T. Boag, S. Moss de Oliveira, S. Moss de Oliveira, T. J. P. Penna, U. Dieckmann   +17 more
core   +1 more source