Interneuron function in pathological memory processes : relevance for posttraumatic stress disorder

Otto-von-Guericke-Universität Magdeburg, Fakultät für Naturwissenschaften, Univ., Dissertation, 2015

Periodic solutions of second-order differential inclusions systems with p-Laplacian

Some existence results are obtained for periodic solutions of nonautonomous second-order differential inclusions systems with p-Laplacian

Periodic solutions for nonautonomous second order differential inclusions systems with p- Laplacian

Using the nonsmooth variant of minimax point theorems, some existence results are obtained for periodic solutions of nonautonomous second-order differential inclusions systems with p-Laplacian.

Sequencing games without initial order

In this note we study uncertainty sequencing situations, i.e., 1-machine sequencing situations in which no initial order is specified. We associate cooperative games with these sequencing situations, study their core, and provide links with the classic sequencing games introduced by Curiel et al. (1989). Moreover, we propose and characterize two simple cost allocation rules for uncertainty sequencing situations with equal processing times.

On moduli of smoothness of fractional order

In this paper we consider the properties of moduli of smoothness of fractional order. The main result of the paper describes the equivalence of the modulus of smoothness and a function from some class.

Limit cycles for cubic systems with a symmetry of order 4 and without in nite critical points

"Vegeu el resum a l'inici del document del fitxer adjunt."

On the upper bound of the number of limit cycles obtained by the second order averaging method I

"Vegeu el resum a l'inici del document del fitxer adjunt."

On the upper bound of the number of limit cycles obtained by the second order averaging method II

"Vegeu el resum a l'inici del document del fitxer adjunt."

The third order Melnikov function of a quadratic center under quadratic perturbation

We study quadratic perturbations of the integrable system (1+x)dH; where H =(x²+y²)=2: We prove that the first three Melnikov functions associated to the perturbed system give rise at most to three limit cycles.

Dynamics of the third order Lyness' difference equation

"Vegeu el resum a l'inici del document del fitxer adjunt"

Xarxes virtuals de solidaritat: el cas del grup d'autoajuda Bipolarweb

Per a poder comprendre la dimensió de les possibles transformacions que Internet pot comportar, cal investigar els usos concrets de què es o ha estat objecte. En definitiva, cal realitzar investigacions empíriques que aportin informació sobre qui usa Internet, en quines circumstàncies i amb quins objectius. En aquest context, s’ha iniciat l’anàlisi en profunditat d’un cas específic de comunitat virtual de suport social creada per una persona afectada pel trastorn bipolar. L’objectiu d’una comunitat d’autoajuda virtual és proporcionar informació i recolzament emocional a través d’Internet. Mitjançant una metodologia qualitativa s’ha realitzat l’observació del fòrum virtual que penja de la pàgina web “Bipoloarweb.com”. En les investigacions del fenomen dels grups d’autoajuda a Internet, sovint s’ha destacat que a diferència dels grups ‘presencials’, aquests només poden aportar recolzament emocional i informatiu als seus membres. El tipus de recolzament instrumental o altre tipus d’assistència física, en canvi, no és possible en els casos virtuals. Els primers resultats de la recerca invaliden aquesta afirmació general ja que s’ha pogut observar episodis diferents d’ajut instrumental. En relació a la gestió d’informació i producció de coneixement, ja es pot avançar algunes qüestions interessants. En primer lloc, la quantitat i el detall de la informació que en el fòrum circula sobre el trastorn Bipolar. La majoria d’aquests coneixements, però, sorgeixen directament de compartir l’experiència diària entre els membres del grup. Tot això permet avançar la següent hipòtesi de treball pel futur: a més a més de suport emocional i instrumental, aquest grup ‘empodera’ el seus membres? Si la resposta fos positiva, el nostre cas tindria semblances amb altres fenòmens com son les associacions de malalts.

Clean Development Mechanism and Sustainable Development: a discussion on the link between the CDM and Sustainable Development, an analysis of the current status of the CDM portfolio, and an multicriteria evaluation of the effects of additional incentives in order to foster broad local Sustainable Development dividends from the CDM projects

vegeu resum en el fitxer adjunt a l'inici del treball de recerca

Binge eating in binge eating disorder: a break-down of emotion regulatory process?

Current explanatory models for binge eating in binge eating disorder (BED) mostly rely onmodels for bulimianervosa (BN), although research indicates different antecedents for binge eating in BED. This studyinvestigates antecedents and maintaining factors in terms of positive mood, negative mood and tension in asample of 22 women with BED using ecological momentary assessment over a 1-week. Values for negativemood were higher and those for positive mood lower during binge days compared with non-binge days.During binge days, negative mood and tension both strongly and significantly increased and positive moodstrongly and significantly decreased at the first binge episode, followed by a slight though significant, andlonger lasting decrease (negative mood, tension) or increase (positive mood) during a 4-h observation periodfollowing binge eating. Binge eating in BED seems to be triggered by an immediate breakdown of emotionregulation. There are no indications of an accumulation of negative mood triggering binge eating followed byimmediate reinforcing mechanisms in terms of substantial and stable improvement of mood as observed inBN. These differences implicate a further specification of etiological models and could serve as a basis fordeveloping new treatment approaches for BED.