OALib Journal期刊

ISSN: 2333-9721




2018 ( 9 )

2017 ( 9 )

2016 ( 10 )

2015 ( 104 )


匹配条件: “TATIANA IVANA” ,找到相关结果约5390条。
Oltenia's Subcarpathians - methods and techniques for cultural heritage valuation
Cinq Continents , 2012,
Abstract: Les Subcarpates d’Olténie - méthodes et techniques pour l'évaluation du patrimoine culturel. Les Subcarpates d’Olténie disposent de nombreux éléments du patrimoine culturel-historiques, qui offrent { la région une grande valeur touristique et qui, dans le même temps, peuvent représenter les prémisses pour le développement économique. Dans cette étude on désire analyser l’attractivité touristique du patrimoine culturel de la région, afin de déterminer les prochaines stratégies de développement. Donc, d’une part ils ont été analyses les objectifs touristiques du patrimoine culturel, selon des critères bien établis (l’attractivité, l’intérêt, la complexité, le grade de connaissance, l’accessibilité, l’équipement touristiques) et d’un autre part ils ont été analyses les localités dans lesquelles ces objectifs sont situés, considérant la valeur touristiques des objectifs, le nombre d’objectifs d’intérêt national et international, l’infrastructure et la distance jusqu'{ les grandes concentrations humanes.
Natural and agglomerated stone durability assessment according to technical standards
Ivana ?imková,Tatiana Durmeková
Acta Geologica Slovaca , 2010,
Abstract: The assessment of rock behaviour and durability plays an important role in the use of rocks and similar materials for all building purposes. Durability is a complex term, therefore the paper deals with the terminology and aspects related to the evaluation and prediction possibilities of stone durability. Technical standards offer some laboratory procedures suitable for stone durability assessment. The paper presents the results of the application of some standard laboratory methods on select types of natural and agglomerated stones, from the physical properties determination and durability assessment point of view. On the basis of defined criteria of physical properties, such as the value of open porosity, uniaxial compressive strength and water absorption, was predicted the behaviour of selected stones against ageing and weathering. Results of the realised laboratory weathering tests such as the determination of resistance to frost and salt crystallisation, determination of resistance to ageing by SO2 action in the presence of humidity, and determination of resistance to thermal shock, confirmed and verified rock behaviour conditional on stone genesis, mineral composition and structural characteristics.
Mathematical Modelling of Study
Pavel Dedera,Ivana Tomcikova,Tatiana Miklecova
Advances in Electrical and Electronic Engineering , 2004,
Abstract: The paper deals with two exact mathematical models of study: A borrowed model with constant intensity of study and amodel with variable intensity of study derived by the authors are presented using data acquired in real pedagogical research. Thebounding of study performance is proved and precisely determined in dependence on personal (group) parameters of study andintensity of forgetting. The parameter of forgetting has decisive influence on total performance.
The cerebellum, the hypothalamus and behavior  [PDF]
Ivana Gritti
Natural Science (NS) , 2013, DOI: 10.4236/ns.2013.57100

The cerebellum has been classically considered as the subcortical center for motor control. However, accumulating experimental evidence has revealed that it also plays an important role in cognition, for instance, in learning and memory, as well as in emotional behavior and nonsomatic activities, such as visceral and immunological responses.

Protein phase instability developed in plasma of sick patients: clinical observations and model experiments  [PDF]
Tatiana Yakhno
Natural Science (NS) , 2010, DOI: 10.4236/ns.2010.23034
Abstract: This article discusses the causes of formation of micron-size protein structures in liquid plasma or serum of the patients with different diseases, which are accompanied by inflammatory reac-tions. Self-organizing processes in sessile dry-ing drops of natural and model biological liq-uids are used for study of possible mechanisms of development the protein phase instability in serum. There was shown that violation of opti-mal ratio between albumin and osmotic active components could lead to loss of albumin ag-gregative stability and albumin coagulation structures formation. Possible role of these structures in pathogenesis of inflammation is discussed.
Ivana Mladenovi?,Ivana Boji?
Acta Medica Medianae , 2004,
Abstract: Handball is a very popular game all over the world and in SCG as well. Popularity of this game stems from successful play of our male and female handball national team on European, World Competition and on Olympic games.Technically and tactically this game more and more resembles the male handball. The process of training is close to the very edge of female abilities, so we have dynamic game full of duel, long shots and spectacular goals.The aim of this research is to confirm differences of developing characteristics and state of nutrition of male and female handball players at our national competition. The research encircled 20 male and 20 female handball players, members of handball club RK elezni ar" and RK DIN" from Ni .The results show that the average height of male handball players is 190,64 cm and that body mass comes to 96,60 kg. Average height of female handball players is 173, 53 cm, and body mass is 64,81 kg. The difference between male and female height is 17 cm, and difference in body mass between male and female team is 32 kg.
Perceptions of Psychological Domain of Quality of Life in Patients with Diabetes Mellitus  [PDF]
ivana Gavri?, Dragana Gruji?-Vujmilovi?
Open Journal of Preventive Medicine (OJPM) , 2014, DOI: 10.4236/ojpm.2014.46057

Introduction: Adaptation to changes that occur with diabetes mellitus is often accompanied by a variety of negative emotional responses, including anger, guilt, frustration, denial, and loneliness. Objective: The aim of this study was to assess psychological domain of quality of life for people with diabetes mellitus in relation to some of the socio-demographic variables. Methods: The study included 150 patients with diabetes mellitus from October 2011 until June 2012 year, using the questionnaire for quality of life of the World Health Organization (WHOQOL-BREF). Results: Mean score for psychological health domain was 56.28 (± 14.88), without statistically significant difference in relation to sex and with a statistic significant difference decreased with increasing of age (F = 6.715, p = 0.000) and increased with the level of education (F = 7.958, p = 0.000). Negative emotions, such as blue mood, despair, anxiety, depression were present in almost 1/2 of the respondents, “often” (32.7%), “very often” (11.3%) and “always” (4.0%) without statistically significant difference in relation to gender, age and level of education. Discussion: Mean scores for psychological health domain were lower in older and less educated patients. Conclusion: Negative feelings were present in all patients indicating the need for preventive action to soften and reduce these negative feelings.

Eating disorders, body image, and dichotomous thinking among Japanese and Russian college women  [PDF]
Atsushi Oshio, Tatiana Meshkova
Health (Health) , 2012, DOI: 10.4236/health.2012.47062
Abstract: This study explored cross-cultural differences between Japan and Russia in terms of women’s body images, proneness to eating disorders, and the effects of dichotomous thinking. Participants included 419 Japanese and 187 Russian college women who completed the Dichotomous Thinking Inventory (DTI), the 26-item version of the Eating Attitudes Test, and responses regarding nine figures representing female body shapes. The mean age of the participants was 19.8 years, with no significant age differences between the countries. The results showed that Japanese women have leaner ideal body images than Russian women, whereas there were no cross-cultural differences in the participants’ real body images. DTI scores among Russian participants were higher than DTI scores among Japanese participants, which indicated that Russian women think more dichotomously than Japanese. Structural equation modeling indicated a significantly negative effect of dichotomous thinking only on real body image in Russia; the ideal body image had greater effects on eating disorder in Russia than in Japan.
Functional Acrylic Polymer as Corrosion Inhibitor of Carbon Steel in Autoclaved Air-Foamed Sodium Silicate-Activated Calcium Aluminate/Class F Fly Ash Cement  [PDF]
Toshifumi Sugama, Tatiana Pyatina
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.511109

The study focused on investigating the effectiveness of functional acrylic polymer (AP) in improving the ability of airfoamed sodium silicate-activated calcium aluminate/Class F fly ash cement (slurry density of 1.3 g/cm3) to mitigate the corrosion of carbon steel (CS) after exposure to hydrothermal environment at 200?C or 300?C. Hydrothermally-initiated interactions between the AP and cement generated the formation of Ca-, Al-, or Na-complexed carboxylate derivatives that improved the AP’s hydrothermal stability. A porous microstructure comprising numerous defect-free, evenly distributed, discrete voids formed in the presence of this hydrothermally stable AP, resulting in the increase in compresive strength of cement. The foamed cement with advanced properties conferred by AP greatly protected the CS against brine-caused corrosion. Four major factors governed this protection by AP-incorporated foamed cements: 1) Reducing the extents of infiltration and transportation of corrosive electrolytes through the cement layer deposited on the underlying CS surface; 2) Inhibiting the cathodic reactions at the corrosion site of CS; 3) Extending the coverage of CS by the cement; and 4) Improving the adherence of the cement to CS surface.

Toughness Improvement of Geothermal Well Cement at up to 300°C: Using Carbon Microfiber  [PDF]
Toshifumi Sugama, Tatiana Pyatina
Open Journal of Composite Materials (OJCM) , 2014, DOI: 10.4236/ojcm.2014.44020
Abstract: This study aimed at assessing the usefulness of carbon microfiber (CMF) in improving the compressive-toughness of sodium metasilicate-activated calcium aluminate/Class F fly ash foamed cement at hydrothermal temperatures of up to 300°C. When the CMFs came in contact with a pore solution of cement, their surfaces underwent alkali-caused oxidation, leading to the formation of metal (Na, Ca, Al)-complexed carboxylate groups. The extent of this oxidation was enhanced by the temperature increase, corresponding to the incorporation of more oxidation derivatives at higher temperatures. Although micro-probe examinations did not show any defects in the fibers, the enhanced oxidation engendered shrinkage of the interlayer spacing between the C-basal planes in CMFs, and a decline in their thermal stability. On the other hand, the complexed carboxylate groups present on the surfaces of oxidized fibers played a pivotal role in improving the adherence of fibers to the cement matrix. Such fiber/cement interfacial bonds contributed significantly to the excellent bridging effect of fibers, resistance to the cracks development and propagation, and to improvement of the post-crack material ductility. Consequently, the compressive toughness of the 85°-, 200°-, and 300°C-autoclaved foamed cements reinforced with 10 wt% CMF was 2.4-, 2.9-, and 3.1-fold higher than for cement without the reinforcement.

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