scholarly journals The lottery of spermatogenesis

2019 ◽  
Author(s):  
Ata Kalirad ◽  
Hadiseh Safdari ◽  
Mehdi Sadeghi
Keyword(s):  
Male Infertility ◽  
Stochastic Model ◽  
Simple Stochastic Model

AbstractThe causes of male infertility are yet to be fully understood. Here, we propose that male infertility can be partly attributed to the insufficiency of cytoplasmically-inherited proteins in sperms. Using a simple stochastic model of spermatogenesis, we show that in a range of parameters, the proportion of viable sperms can be reduced simply due to stochastic transmission of proteins from spermatogonia to spermatids.

Cognition, conflict, and doctrine: How groupthink fails on a Clausewitz landscape

2019 ◽  
Vol 17 (2) ◽  
pp. 137-142 ◽  
Author(s):  
Rodrick Wallace
Keyword(s):  
Stochastic Model ◽  
Constrained Optimization ◽  
Real Time ◽  
Institutional Effectiveness ◽  
Shadow Price ◽  
Political Campaigns ◽  
Direct Approach ◽  
Optimization Models ◽  
Anytime Algorithm ◽  
Simple Stochastic Model

Real-time conflict takes place on Clausewitz landscapes most notably marked by fog-of-war and frictional limits, uncertainties, and misperceptions. Imposition of such factors on an opponent is, in fact, a standard tactic of confrontation, from courts of law to commerce, from political campaigns to the battlefield. Time-constrained optimization models of institutional effectiveness, based on ‘anytime algorithm’ methods, suggest that the burden of doctrinal groupthink may become synergistic with fog-of-war and friction to greatly compromise the ability of an institution to respond to shadow price demands imposed by a contending agent or environment. A different, and more direct, approach via a ‘simple’ stochastic model, provides similar insight.

scholarly journals Testing a simple stochastic model for the dynamics of waterfowl aggregations

Oecologia ◽  
2001 ◽  
Vol 128 (4) ◽  
pp. 608-617 ◽  
Author(s):  
Emily D. Silverman ◽  
Mark Kot ◽  
Elizabeth Thompson
Keyword(s):  
Stochastic Model ◽  
Simple Stochastic Model

Simple Stochastic Model for Annual Flows

1990 ◽  
Vol 116 (2) ◽  
pp. 220-232 ◽  
Author(s):  
Andrea G. Capodaglio ◽  
Ugo Moisello
Keyword(s):  
Stochastic Model ◽  
Simple Stochastic Model

Can a simple stochastic model generate rich patterns of rainfall events?

2011 ◽  
Vol 411 (3-4) ◽  
pp. 279-289 ◽  
Author(s):  
Simon-Michael Papalexiou ◽  
Demetris Koutsoyiannis ◽  
Alberto Montanari
Keyword(s):  
Stochastic Model ◽  
Rainfall Events ◽  
Simple Stochastic Model

scholarly journals A simple stochastic model for the dynamics of condensation

1998 ◽  
Vol 31 (1) ◽  
pp. L19-L25 ◽  
Author(s):  
J-M Drouffe ◽  
C Godrèche ◽  
F Camia
Keyword(s):  
Stochastic Model ◽  
Simple Stochastic Model

scholarly journals A Simple Stochastic Model with Environmental Transmission Explains Multi-Year Periodicity in Outbreaks of Avian Flu

PLoS ONE ◽  
2012 ◽  
Vol 7 (2) ◽  
pp. e28873 ◽  
Author(s):  
Rong-Hua Wang ◽  
Zhen Jin ◽  
Quan-Xing Liu ◽  
Johan van de Koppel ◽  
David Alonso
Keyword(s):  
Stochastic Model ◽  
Avian Flu ◽  
Environmental Transmission ◽  
Simple Stochastic Model

A SIMPLE STOCHASTIC MODEL FOR LIBRARY LOANS

1980 ◽  
Vol 36 (2) ◽  
pp. 115-132 ◽  
Author(s):  
QUENTIN BURRELL
Keyword(s):  
Stochastic Model ◽  
Simple Stochastic Model
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