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Search Results: 1 - 10 of 795 matches for " Panagiotis Kasimatis "
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UNDERWATER STROKE KINEMATICS DURING BREATHING AND BREATH-HOLDING FRONT CRAWL SWIMMING
Nickos Vezos,Vassilios Gourgoulis,Nickos Aggeloussis,Panagiotis Kasimatis
Journal of Sports Science and Medicine , 2007,
Abstract: The aim of the present study was to determine the effects of breathing on the three - dimensional underwater stroke kinematics of front crawl swimming. Ten female competitive freestyle swimmers participated in the study. Each subject swam a number of front crawl trials of 25 m at a constant speed under breathing and breath-holding conditions. The underwater motion of each subject's right arm was filmed using two S-VHS cameras, operating at 60 Hz, which were positioned behind two underwater viewing windows. The spatial coordinates of selected points were calculated using the DLT procedure with 30 control points and after the digital filtering of the raw data with a cut-off frequency of 6 Hz, the hand's linear displacements and velocities were calculated. The results revealed that breathing caused significantly increases in the stroke duration (t9 = 2.764; p < 0.05), the backward hand displacement relative to the water (t9 = 2.471; p<0.05) and the lateral displacement of the hand in the X - axis during the downsweep (t9 = 2.638; p < 0.05). On the contrary, the peak backward hand velocity during the insweep (t9 = 2.368; p < 0.05) and the displacement of the hand during the push phase (t9 = -2.297; p < 0.05) were greatly reduced when breathing was involved. From the above, it was concluded that breathing action in front crawl swimming caused significant modifications in both the basic stroke parameters and the overall motor pattern were, possibly due to body roll during breathing
Institutional Inefficiencies in Latin America  [PDF]
Panagiotis Evangelopoulos
Theoretical Economics Letters (TEL) , 2012, DOI: 10.4236/tel.2012.25095
Abstract: In North America the establishment of the institutions of individual liberty and free enterprise demonstrate that prosperity is a function of freedom. Diametrically opposite, Latin America has throughout its history been required to endure attempts at imposing collectivist institutions. The new institutional economic historian approach implies that poor economic performance is attributable to the inefficient institutional framework. Based on this analysis I explain the reasons of the wealth differences between North and Latin America.
Analyzing the Relation between Greek Paper and Paperboard Imports and Exports with Macroeconomic Variables  [PDF]
Panagiotis Koulelis
Open Journal of Forestry (OJF) , 2014, DOI: 10.4236/ojf.2014.45048
Abstract: This paper describes the relation between Greek imports and exports of paper and paperboard and a number of major macroeconomic variables, such as population, gross domestic product, the industrial production index and domestic round wood production. The Pearson correlation coefficient and multiple regression analysis were employed in the analysis of the data. The study shows that there is no significant relation between paper and paperboard imports as a dependent variable and population, gross domestic product and domestic round wood production as independent variables. Despite this, an acceptable model is constructed using only gross domestic product as an independent variable. The study also shows that there is a significant relation between the export of paper and paperboard and gross domestic product, the industrial production index and round wood production. The results indicate that gross domestic product as an independent variable has the greatest effect on wood imports and exports in Greece during the period studied. Using these models is confirmed that the use of socioeconomic variables and the construction of future scenarios for the Greek forest sector is very efficient considering the special characteristics of the Greek economy. These models could help the establishment of economic growth, the reduction of the financial and ecological deficit, the implementation of economic reforms and to increase new investments.
Forest Products Consumption and Trade Deficit in Greece during the Financial Crisis: A Quantitative Statistical Analysis  [PDF]
Panagiotis Koulelis
Open Journal of Business and Management (OJBM) , 2016, DOI: 10.4236/ojbm.2016.42027
Abstract: During the economic crisis in Greece, the national forest sector wounded by a serious decline in demand. The national forest sector faced an important decline in forest products consumption. The paper examines the quantitative changes in the above consumption regarding several wood products categories. The results indicated that a very important decline in consumption per capita took place after 2008. Moreover, an unwanted positive relationship between GDP and the forest products trade deficit is confirmed. During the crisis, the continuant reduction of GDP brings reduction on deficit in trade of forest products while an important increase of exports occurs. However, the results also show that policy makers must act immediately in order to stop the total collapse of the sector.
The Restoration of Fiscal Stability. A Public Choice Approach on the Problem of Public Debt  [PDF]
Panagiotis Evangelopoulos
Theoretical Economics Letters (TEL) , 2018, DOI: 10.4236/tel.2018.82010
Abstract: In contemporary democracy fiscal policy is not employed for the fiscal control of necessary state activities but for generation of deficits which causes the state to feed on itself, expands enormously in the service of special interests and is contrary to the public’s interest in fiscal stability and discipline. Starting from the origin of and the reason for, the classical liberal state, I undertake an analysis of the historical theoretical background of public choice. The development and application of public choice analysis can work towards restoring fiscal stability, especially after the outbreak of the global financial crisis that generated the enormous increases in the public deficit and debt in the developed democracies.
Informal Financing of Small – Medium Enterprise Sector: The Case of Greece  [PDF]
Panagiotis Petrakis, Konstantinos Eleftheriou
Journal of Service Science and Management (JSSM) , 2009, DOI: 10.4236/jssm.2009.24045
Abstract: In this paper, we attempt to find a “channel” through which Greek economy can exhibit a relative “resistance” in a credit crunch. For this purpose, we specify an error correction model so as to test the relationship between corporate bank loans and commercial papers comprised of post-dated cheques and bills of exchange. The results show that corporate bank loans and cheques - bills of exchange are substitutes. This finding combined with the fact that in Greece, the issuance of these papers is positively connected with the informal economic activity which in turn rises during economic downturns, has a strong economic implication regarding the ability of Greek economy to partly “amortize” the shocks connected with the current financial crisis.
On the Ideal Duration of Entrepreneurial Resources Commitment  [PDF]
Panagiotis E. Petrakis
Technology and Investment (TI) , 2010, DOI: 10.4236/ti.2010.11006
Abstract: The paper proposes that the entrepreneur’s perception of time in the form of average ideal duration of entre-preneurial resources commitment is an important personal trait. The entrepreneur develops a particular checking filter for the entrepreneurial involvement on which the evaluation of entrepreneurial opportunities is based. The concept of ideal time dimension of entrepreneurial engagement is crucially related to the de-velopment of structural prototype prevailing in space and time. Three main influences have been located with respect to the formation of duration on entrepreneurial commitment: microeconomic influences, long-term macro-environmental influences and short-term macro-environmental influences.
Trace-Based Analysis of MPEG-4 AVC Video Streams  [PDF]
Kizouris Panagiotis, Papadakis Andreas
Journal of Computer and Communications (JCC) , 2019, DOI: 10.4236/jcc.2019.71004
Abstract: MPEG-4 AVC encoded video streams have been analyzed using video traces and statistical features have been extracted, in the context of supporting efficient deployment of networked and multimedia services. The statistical features include the number of scenes composing the video and the sizes of different types of frames, within the overall trace and each scene. Statistical processing has been performed upon the traces and subsequent fitting upon statistical distributions (Pareto and lognormal). Through the construction of a synthetic trace, based upon this analysis, our selections of statistical distribution have been verified. In addition, different types of content, in terms of level of activity (quantified as different scene change ratio) have been considered. Through modelling and fitting, the stability of the main statistical parameters has been verified as well as observations on the dependence of these parameters upon the video activity level.
Using MIMIC Modeling to Identify Dimensions of Self-Regulation in Cerebral Palsy  [PDF]
Ioannis Agaliotis, Panagiotis Varsamis
Psychology (PSYCH) , 2019, DOI: 10.4236/psych.2019.106052
Abstract: As long as physical disability is considered in terms of a continuous, dynamic, and dialectical relationship among personal and environmental factors, task characteristics will play an important role. The main purpose of this study is to confirm levels of motivation and self-regulation in students with Cerebral Palsy when confronted with an adapted ball throwing task. Using the dynamic approach of Self-Regulated Learning, a theory-driven Multiple Indicators and Multiple Causes model was eventually qualified. It comprised four levels of functioning, namely goal-setting, motor performance, efficacy beliefs, and self-reflections. These facets were greatly influenced by intellectual functions, hand functions, initial goals, coping self-efficacy, and throwing distance. Results underscore the role of disability and personal factors. Further research should expand on personal characteristics and focus on the longitudinal, i.e., developmental, examination for the proposed causal effects.
TRUST AND GREEK TEACHERS’ ATTITUDES TOWARDS INDIVIDUALS WITH AN INTELLECTUAL DISABILITY
Panagiotis Giavrimis,Panagiotis Giavrimis
Academic Research International , 2012,
Abstract: Individuals with intellectual disability are one of the most numerous groups which are integrated in the educational system. The educational system is the most supporting factor in their learning process. On the other hand teachers constitute a social team of professionals that directly contribute to the operation of the educational system. Teachers act, interact and are affected by the social environment, also teachers as active individuals take decisions; they give meaning to the regulative framework by acting with relative autonomy. In this framework, their attitudes towards individuals with a disability play an important role in educational system and related to the conversion and restructure of it. In the present research we have selected to investigate how the sense of trust teachers experience within the social structure related to teachers conceptualization of individualswith an intellectual disability and the interaction with these individuals. The sample of the present research consists of 240 teachers of the Greek Secondary Education, 135 of which are male and 105 (43.89%) female. For the materialization of the research the improvised questionnaire was used, which includes five units, which includes questions relating to the education and the training, to theattitude of the teachers towards the individuals with an intellectual disability, to the inclusion of the children with an intellectual disability and to the conceptualization of the teachers for the individuals with a disability. From the conclusions it was shown that most teachers have positive attitudes towards individuals with an intellectual disability, but there are differentiations related with the rate of trust among the educational community.
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