687 research outputs found
Profit Profiles in Correlated Markets
We consider a financial market where the asset price follows a fractional
Brownian motion. We introduce a family of investment strategies, and quantify
profit possibilities for both persistent and antipersistant markets.Comment: 5 pages, 4 figure
Turbulent helium gas cell as a new paradigm of daily meteorological fluctuations?
We compare the spectral properties of long meteorological temperature records
with laboratory measurements in small convection cells. Surprisingly, the
atmospheric boundary layer sampled on a daily scale shares the statistical
properties of temperature fluctuations in small-scale experiments. This fact
can be explained by the hydrodynamical similarity between these seemingly very
different systems. The results suggest that the dynamics of daily temperature
fluctuations is determined by the soft turbulent state of the atmospheric
boundary layer in continental climate.Comment: 10 pages Late
SzĂvinfarktus 2016: gyakoriság, ellátás, prognĂłzis = Myocardial infarction – 2016: frequency, medical care, prognosis
Püspökválasztások a Kolozsvári és a Nagyváradi Református Egyházkerületekben az 1960-as években
Romániai református elit a hatalom szolgálatában : HĂrszerzĂ©s, pozitĂv befolyásolás, kapcsolatĂ©pĂtĂ©s a protestáns világszervezetek Ă©rtekezletein az 1960-as Ă©vekben
The Elementary Reactions of Platinum-Alkyl Complexes and Their Application in Hydroformylations
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Az anorexia nervosa hátterében álló evolúciós mechanizmusok = Evolutionary mechanisms in the background of anorexia nervosa
Az anorexia nervosa kialakulására vonatkozĂłan ma a komplex, multidimenzionális megközelĂtĂ©seket ajánlják. Emellett több olyan elmĂ©let is ismeretes, mely a kĂłrkĂ©pet egy szelektĂv szemszögbĹ‘l vizsgálja, ilyen az evolĂşciĂłs pszicholĂłgiai magyarázat is. Az evolĂşciĂłs pszicholĂłgia az utĂłbbi kĂ©t Ă©vtizedben bontakozott ki, kĂ©pviselĹ‘i arra a kĂ©rdĂ©sre keresik a választ, hogy az evolĂşciĂł során kialakult tĂşlĂ©lĂ©si mechanizmusok milyen mĂ©rtĂ©kben befolyásolják a mai ember lelki működĂ©sĂ©t. Az anorexia nervosa evolĂşciĂłs Ă©rtelmezĂ©se egy lehetsĂ©ges adaptĂv stratĂ©giát lát a kĂłrkĂ©p hátterĂ©ben. Az evolĂşciĂłs megközelĂtĂ©s provokatĂv elkĂ©pzelĂ©snek indult, mára azonban egyre elfogadottabbá válnak az egyes evolĂşciĂłs elmĂ©letek (pĂ©ldául a reproduktĂv szuppressziĂł, szĂĽlĹ‘i manipuláciĂł). Ugyanakkor az Ĺ‘si adaptĂv mechanizmusok szerepe kevĂ©sbĂ© tanulmányozott Ă©s alig ismert. Az ultimatĂv okok keresĂ©se helyett inkább a proximatĂv megközelĂtĂ©st helyezik elĹ‘tĂ©rbe. A jelen tanulmány cĂ©lja a figyelemfelkeltĂ©s mellett ezen Ăşjfajta Ă©rtelmezĂ©s bemutatása, s Ăşj kutatási tĂ©mák felkĂnálása az evolĂşciĂłs elmĂ©leteken keresztĂĽl.
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In the etiopathogenesis of anorexia nervosa a complex, multidimensional approach is suggested. In addition, there are some theories that examine the disease from a selective point of view. Evolutionary psychology has emerged in the last two decades. Psychologists have been trying to answer the question how the adaptive strategies acquired through evolution affect human psychological functioning. The evolutionary approach of anorexia nervosa defines the disease from a new perspective. An adaptive strategy is assumed in the background. This evolutionary theory first seemed very provocative. However, these evolutionary theories (e.g. reproductive suppression, parental manipulation) have already become widely accepted. Yet, the role of the ancient adaptive mechanisms is a less studied and less known field. Most therapeutic approaches concentrate on the proximate causation instead of the ultimate reasons of the disease. Besides raising the attention, this study is an attempt to approach anorexia nervosa in a modern way and offer new ideas for scientific research by emphasizing the evolutionary theories in the background of anorexia nervosa
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