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Search Results: 1 - 10 of 14790 matches for " Theodosis Christian "
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HIV/AIDS, conflict and security in Africa: rethinking relationships
Becker Joseph U,Theodosis Christian,Kulkarni Rick
Journal of the International AIDS Society , 2008, DOI: 10.1186/1758-2652-11-3
Abstract: The effect of conflict on HIV transmission and regional and global security has been the subject of much recent discussion and debate. Many long held assumptions regarding these relationships are being reconsidered. Conflict has long been assumed to contribute significantly to the spread of HIV infection. However, new research is casting doubt on this assumption. Studies from Africa suggest that conflict does not necessarily predispose to HIV transmission and indeed, there is evidence to suggest that recovery in the "post-conflict" state is potentially dangerous from the standpoint of HIV transmission. As well, refugee populations have been previously considered as highly infected vectors of HIV transmission. But in light of new investigation this belief is also being reconsidered. There has additionally been concern that high rates of HIV infection among many of the militaries of sub-Saharan Africa poses a threat to regional security. However, data is lacking on both dramatically elevated prevalence amongst soldiers and a possible negative effect on regional security. Nevertheless, HIV/AIDS remain a serious threat to population health and economic well being in this region. These issues are of vital importance for HIV programming and health sector development in conflict and "post-conflict" societies and will constitute formidable challenges to the international community. Further research is required to better inform the discussion of HIV, conflict, and security in sub-Saharan Africa.
"Containing" Baghdad: Constanitnos Doxiadis' Program for a Developing Nation
Theodosis, Lefteris
DC PAPERS : Revista de Crítica y Teoría de la Arquitectura , 2008,
Abstract:
Sufficient Lie Algebraic Conditions for Sampled-Data Feedback Stabilizability of Affine in the Control Nonlinear Systems
John Tsinias,Dionysis Theodosis
Mathematics , 2014,
Abstract: For general nonlinear autonomous systems, a Lyapunov characterization for the possibility of semi-global asymptotic stabilizability by means of a time-varying sampled-data feedback is established. We exploit this result in order to derive a Lie algebraic sufficient condition for sampled-data feedback semi-global stabilizability of affine in the control nonlinear systems with non-zero drift terms. The corresponding proposition constitutes an extension of the "Artstein-Sontag" theorem on feedback stabilization.
Sufficient Lie Algebraic Conditions for Sampled-Data Feedback Stabilization
John Tsinias,Dionysis Theodosis
Mathematics , 2015,
Abstract: For nonlinear affine in the control systems, a Lie algebraic sufficient condition for sampled-data feedback semi-global stabilization is established. We use this result, in order to derive sufficient conditions for sampled-data feedback stabilization for a couple of three-dimensional systems.
Eating disorders in the world of sport: the experiences of rhythmic gymnasts
KOULOUTBANI KOMANTHI,EFTSATHIOU THEODOSIS,,STERGIOULAS APOSTOLOS
Biology of Exercise , 2012,
Abstract: The increase in cases of eating disorders, particularly among sportsmen and women, has taken on worrying proportions over recent years. Male and female athletes competing in sports that require the careful control of body weight and link slight builds with high performance (as is often the case in artistic events) are a high risk group for developing eating disorders. The aim of this study was to present the various types of eating disorder and their frequency in the world of sport. It also focused on the root causes of eating disorders, the effect they have on the body and, moreover, measures for their prevention and treatment. In this regard, the experiences of five former competitive rhythmic gymnasts, with years of experience in the sport and medals to their names, were carefully studied. An in-depth phenomenological study was conducted using open, semi-structured interviews in order to explore and understand the ways in which these individuals related to food and nutrition during their time as athletes. The results showed that the sports women taking part in the survey ran the risk of suffering from eating disorders for two main reasons. First, they displayed behaviours and personality traits common to people with eating disorders. And second, they submitted to the limitation or complete cessation of their food intake forced upon them by their environment (by coaches, parents, etc.).
Patient anxiety and depression after laryngectomy
Thalia Chr. Bellali,Maria G. Avramika,Athanasios G. Mastrokostas,Peter Theodosis
To Vima tou Asklipiou , 2011,
Abstract: Laryngeal cancer is responsible for various physical and psychosocial problems for the patients who often exhibit high levels of anxiety and depression. Aim: The aim of this study was to explore anxiety and depression levels of laryngeal cancer patients after total or partial laryngectomy, comparing three groups with different clinical traits. Material-method: This study follows a cross-sectional survey design. The population of the study included 168 hospitalized patients from two large urban hospitals from Athens and Thessaloniki. Sixty five patients (38.7%) had total laryngectomy as part of their treatment (group A), 63 patients (37.5%) had partial laryngectomy or other treatment (radiation or chemotherapy) with voice maintenance (group B) and 40 patients (23.8%) had also total laryngectomy but they participated additionally in a self care training program (group C). This survey used the following instruments: a) a demographic data and clinical traits questionnaire, b) the Self Rated Depression Scale (SRDS-Zung) and c) the Self Rated Anxiety Scale (SRAS-Zung). Statistical analysis included Mann-Whitney U test, Kruskal-Wallis test and Chi-square test, using SPSS 15 statistical package. Results: Overall 9.6% and 19% of patients exhibited symptoms of anxiety and depression respectively, while patients after laryngectomy (group A) presented the higher percentages. Both group B and C had lower anxiety and depression levels compared with group A (p<0.05). However, no significant difference was found between group B and C for anxiety (p=0.222) and depression (p=0.198). Conclusion: Patients after laryngectomy exhibit high anxiety and depression levels. It is suggested that training programs promoting self care may help anxiety management and prevent depression after the traumatizing experience of laryngectomy.
Role of Estradiol, Progestins, Insulines and Adipocytokines in Breast Cancer Promotion in Post-Menopausal Women  [PDF]
Christian Jamin
Journal of Cancer Therapy (JCT) , 2010, DOI: 10.4236/jct.2010.11007
Abstract: Estrogens and artificial progestins used in hormone replacement therapy increase breast cancer risk. This seems to bedue to a promoting and not initiating effect. A synergic effect of estradiol and hyperinsulinism has been shown. Insulinplays a role in the increase of breast cancer risk when associated with android obesity, sedentariness, type II diabetes,and high glycemic index food, alcohol and trans fatty acids intake. Natural menopause induces insulin resistance anddoes not induce a risk decrease. The role of insulin gives a new outlook on the influence of HRT in breast cancer promotion:estradiol alone, which improves insulin-sensitivity, does not increase breast cancer risk. Artificial progestinsassociated with estrogens increase the risk, whereas estrogens associated with progesterone do not. This could be dueto the fact that artificial progestins increase insulin resistance, whereas natural progesterone does not. Adipose tissue,which is an endocrine gland, is insulin dependant. Breast cancer and its seriousness are correlated to adipocytokincirculating levels such as resistin, leptin, interleukin 1, adipocyte fatty acid-binding protein, and are inversely correlatedto the level of adiponectin. Insulin could play a synergic role with sexual steroids by a direct effect and by increasingadipose tissue secretions.
The Timeliness of Direct Democracy in the EU—The Example of Nuclear Energy in the EU and the Institutionalisation of the European Citizens’ Initiative in the Lisbon Treaty  [PDF]
Christian Joerges
Beijing Law Review (BLR) , 2012, DOI: 10.4236/blr.2012.31001
Abstract: The catastrophic nuclear incident in Fukushima in March 2011 has shocked Europe. Its impact was particularly strong in Germany with its decade-old anti-nuclear movements. Political and technological re-orientations were initiated in that country without considering at any depth the potential of European law and politics to control or obstruct such moves. Somewhat paradoxically, the Euratom Treaty of 1957 and also the new Treaty of Lisbon confirm the right of each Member State to decide upon the use of nuclear energy autonomously. This means that European citizens remain exposed to the risks of that technology until the highly unlikely consent of all Member States to abstain from its further use. That constellation poses a dilemma for democracy because it implies that each political decision taken within parts of the Union exerts external pan-European effects. The article considers the chances for an inclusive democratic process which would lead to a legitimated European decision. It examines the possibilities offered by the new European Citizens Initiative which the Lisbon Treaty has institutionalized in its Article 12 and concludes that this instrument could indeed be used to instigate a European-wide debate which may eventually lead to pertinent changes in the Treaties.
The Methodological Implications of the Schutz-Parsons Debate  [PDF]
Christian Etzrodt
Open Journal of Philosophy (OJPP) , 2013, DOI: 10.4236/ojpp.2013.31006
Abstract:

The aim of this paper is an analysis of the different standpoints of Parsons and Schutz concerning Weber’s suggestion that sociological explanations have to include the subjective point of view of the actors, the Cartesian Dilemma that the actor’s consciousness is not accessible to the researcher, and the Kantian Problem that theories are necessary in order to interpret sensory data, but that there is no guarantee that these theories are true. The comparison of Schutz’s and Parsons’s positions shows that Parsons’s methodology is na?ve and unsuitable for a sociological analysis. But although Schutz’s methodological standpoint is much more reasonable, it is also problematic, because it excludes highly abstract social “facts” such as social systems from the research agenda. Parsons can deal with such highly abstract facts, despite the drawback that with his methodology the truth content of theories cannot be judged.

Psychodynamic Positive Psychotherapy Emphasizes the Impact of Culture in the Time of Globalization  [PDF]
Christian Henrichs
Psychology (PSYCH) , 2012, DOI: 10.4236/psych.2012.312A169
Abstract:

The emphasis of Positive Psychotherapy on culture is a specific contribution to psychodynamic psycho- therapy and to contemporary psychological reasoning and intervention in general. In this article, it is argued that a consistent psycho-cultural perspective as introduced by the founder of Positive Psychotherapy, the Persian-German psychiatrist and psychotherapist Nossrat Peseschkian (1933-2010), is beneficial for humanity’s psychological needs in the time of globalization. Also elementary concepts and the style of intervention in Positive Psychotherapy are described.


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