Highly crowded living conditions exist among the !Kung Bushmen, hunter-gatherers who live on the edges of the Kalahari Desert in Botswana and South-West Africa. The !Kung appear to be crowded by choice, and biological indicators of stress are absent. Data indicate that residential crowding alone does not produce symptoms of pathological stress.

Yin-Yi Han1, Yih-Nen Jeng2, Si-Chen Lee3 and Hao-Jian Hung4 1Department of Trauma, National Taiwan University Hospital, Graduate institute of Electrical Engineering, National Taiwan University, 2Department of Aeronautics and Astronautics, National Cheng-Kung University, 3Department of Electrical Engineering, National Taiwan University, 4Department of Aeronautics and Astronautics, National Cheng...

A stochastic dynamic programming model is presented that supports and extends work on the reproductive performance of the !Kung Bushmen (Lee 1972), (Blurton Jones et al. 1978), (Blurton Jones 1986) proposing that !Kung women and their reproductive systems may be maximizing reproductive success. The stochastic dynamic programming approach allows the construction of a \whole-life" model where the...

let $e$ be an elliptic curve over $bbb{q}$ with the given weierstrass equation $ y^2=x^3+ax+b$. if $d$ is a squarefree integer, then let $e^{(d)}$ denote the $d$-quadratic twist of $e$ that is given by $e^{(d)}: y^2=x^3+ad^2x+bd^3$. let $e^{(d)}(bbb{q})$ be the group of $bbb{q}$-rational points of $e^{(d)}$. it is conjectured by j. silverman that there are infinitely many primes $p$ for which $...

In this paper, we give a new and direct proof for the recently proved conjecture raised in Soltani and Roozegar (2012). The conjecture can be proved in a few lines via the integral representation of the Gauss-hypergeometric function unlike the long proof in Roozegar and Soltani (2013).

1Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 70101, Taiwan 2Department of Mechanical Engineering, National Cheng Kung University, Tainan 70101, Taiwan 3Department of Aircraft Engineering, Air Force Institute of Technology, Kaohsiung 82047, Taiwan 4Laboratory of Polymeric Composite Materials, ISPMS SB RAS, Tomsk 634021, Russia 5Laboratory of Physics of Surf...

1Life, Health and Environmental Science Department, University of L’Aquila, 67100 L’Aquila, Italy 2Neuropsychology Unit, IRCCS Santa Lucia Foundation, 00179 Rome, Italy 3School of Life & Health Sciences, Aston University, Birmingham, West Midlands B15, UK 4Division of Behavioral Neurology, Department of Neurology and Alzheimer’s Disease Research Center, National Cheng Kung University Hospital, ...

CHI-LU YANG∗,‡, YEIM-KUAN CHANG∗,§, YU-TSO CHEN∗,¶, CHIH-PING CHU∗,‖ and CHI-CHANG CHEN†,∗∗ ∗Department of Computer Science and Information Engineering National Cheng Kung University, Tainan, Taiwan †Department of Information Engineering, I-Shou University National Cheng Kung University, Tainan, Taiwan ‡[email protected] §[email protected] ¶[email protected] ‖[email protected]...