32 research outputs found

    Health Tourism Contribution to the Structural Dynamics of the Territorial Systems with Tourism Functionality

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    AbstractThe study aims to identify the role of health tourism (SPA) in developing the territorial systems, characterized by the tourism functionality, in Romania, for the period 2000-2012, a period marked by spectacular transformations, especially for this economic sector. Tourism has now become a true economic engine, generating an increase in the functional complexity of the territorial system, which is based on exploiting tourism resources. To quantify how tourism has contributed to the economic development of these territorial systems in Romania a database of NACE codes was set up, specific for the tourism activity, for the period 2000-2012, for territorial mainframe systems with functionality resort. Based on this statistical support analyzes on the evolution of the number of companies, number of employees, turnover and profit were made. The results show the important role of health tourism in generating multiplier effects on other components of the economic subsystem. They were defined two categories of territorial systems: territorial systems where tourism plays a complementary role function and territorial systems in which health tourism has a preeminent role in the local economy

    Using fractal analysis in modeling the dynamics of forest areas and economic impact assessment:Maramureș County, Romania, as a case study

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    This study uses fractal analysis to quantify the spatial changes of forest resources caused by an increase of deforested areas. The method introduced contributes to the evaluation of forest resources being under significant pressure from anthropogenic activities. The pressure on the forest resources has been analyzed for Maramureș County, one of the most deforested counties in Romania. In order to evaluate this, the deforested areas were calculated for the period of 2001–2014, by using the Global Forest Change 2000–2014 database. The Fractal Fragmentation Index (FFI) and Fixed Grid 2D Lacunarity (FG2DL) were used to quantify the degree of fragmentation and dispersion of the forested areas, and thereby the extent to which a forest area is affected by deforestation. The process of quantifying the pressure on forested areas included the creation of a database for the period of 2000–2014 containing economic activities (turnover) related to woody recourses, important indicators of forest exploitation. Taken together, the results obtained indicate a dramatic increase in deforested areas (over 19,122 ha in total for the period of analysis), in Maramureș County

    Use of Fractal Analysis in the Evaluation of Deforested Areas in Romania

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    Spectacular spatial dynamics of forest areas is one of the biggest challenges for the scientific world, concerned with completing the methodologies devoted to new methodological approaches, to provide new information that is indispensable in assessing the impact of deforestation within the ecosystem. In this study, we analyzed the evolution of the deforested areas, using the fractal fragmentation index (FFI). The research is based on high-resolution satellite images of forest areas between 2000 and 2017. The use of fractal algorithms allowed the modeling of the grinding patterns, identifying obvious differences between compact and fragmented cuts. Information is needed especially in the evaluation of the areas cleared because of illegal actions. Research has shown spectacular increases in deforestation in the mountain area, the northern and central groups of the Eastern Carpathians being the most fragmented geographical regions in Romania. The study showed that deforestation led to the fragmentation of forests, which generates major natural changes. The results obtained can contribute to the identification of new approaches in national forest fund management policies by establishing a critical fragmentation threshold

    Possible Subjects for the High School Entrance Examination and the Capacity Examination in Romania, Grades V-VIII

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    The present book tries to offer students and teachers knowledge evaluation tools for all the chapters from the current Romanian mathematics syllabi for grades V-VIII students. In the evolution of teenagers, the phase of admission in high schools mobilizes particular efforts and emotions. The present workbook aims to be a permanent advisor in the agitated period starting with the capacity examination and leading to the admittance to high school. The tests included in this workbook have a complementary character as opposed to the many materials written with the purpose to support all those who prepare for such examinations and they refer to the entire subject matter included in the analytical mathematics syllabus of arithmetic in Romania, algebra and geometry from the lower secondary grades. These tests have been elaborated with the intention to offer proper support to those who use the workbook, assuring them the success and extra preparation for future exams

    EVALUATING THE COMPATIBILITY BETWEEN THE ACTIVITY OF S.C. ARPECHIM AND THE ECOLOGICAL RESTRICTIONS

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    The environmental policy is the moving element for the implementation and improvement of a S.M.M. by which the companies can keep and improve the environmental performance. Therefore it is recommended that the environmental policy reflects at the highest degree the management commitment of the economic agent, to comply with legislation in force and seek the continuous improvement of the environmental performance. The environmental policy represents the foundation on which the organization lays in order to establish its general and specific environmental objectives. It is recommended for the environmental policy to be clear enough in order to be understood by the interested parties, both within the company and outside and to be analysed and revised periodically, so it reflects the modification of the conditions and information. Evaluating the compatibility between the activity of S.C. Arpechim and the ecological restrictions requires a global diagnostic based on 6 analysis grills. The purpose of the present work is of formulating that diagnostic

    Rules and technical tricks in extremely difficult laparoscopic cholecystectomies

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    We remind you of some technical artifices required in order to resolve difficult cases, such as: antegrade laparoscopic cholecystectomy (LC), subtotal laparoscopic cholecystectomy (SLC) and the “stairs” clipping of the cystic duct. Also we acknowledge the closing of the cystic duct. We analyzed the medical records of 15251 laparoscopic cholecystectomies performed during 1994-2015, with emphasis on: surgical technique, conversion rate, hemorrhage, postoperative bile leaking, iatrogenic MBD injuries and mortality. We divided the cases in 5 study groups, group 1 (1994- 2004) N= 5138, group 2 (2005-2015) N= 10113, group 3 (fundus first cholecystectomies, N=2348), group 4 (retrograde cholecystectomies, N=12889) and group 5 (subtotal laparoscopic cholecystectomy-SLC, N=14) which we compared regarding the main parameters. We prefer to perform a “step by step” clipping each time the length of the clip does not cover all the circumference of the cystic duct. This artifices, is a simple laparoscopic gesture easy to perform and has the advantage of avoiding a large excessive and risky laparoscopic dissection in the vicinity of the main biliary duct. More seldom we appeal to the suture of the cystic stump using the intracorporeal knots or a simple stump ligation with an extracorporeal preformed not. We did not encounter any late or early complications following the implementation of this technical laparoscopic artifice. Laborious laparoscopic cholecystectomies performed by a well-trained surgical team ensure the premises of a good performance even while adopting laparoscopic ingenious and difficile gestures that also respect the intraoperatory rules and principals

    Flood Hazard Mapping Using the Flood and Flash-Flood Potential Index in the Buzău River Catchment, Romania

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    The importance of identifying the areas vulnerable for both floods and flash-floods is an important component of risk management. The assessment of vulnerable areas is a major challenge in the scientific world. The aim of this study is to provide a methodology-oriented study of how to identify the areas vulnerable to floods and flash-floods in the Buzău river catchment by computing two indices: the Flash-Flood Potential Index (FFPI) for the mountainous and the Sub-Carpathian areas, and the Flood Potential Index (FPI) for the low-altitude areas, using the frequency ratio (FR), a bivariate statistical model, the Multilayer Perceptron Neural Networks (MLP), and the ensemble model MLP–FR. A database containing historical flood locations (168 flood locations) and the areas with torrentiality (172 locations with torrentiality) was created and used to train and test the models. The resulting models were computed using GIS techniques, thus resulting the flood and flash-flood vulnerability maps. The results show that the MLP–FR hybrid model had the most performance. The use of the two indices represents a preliminary step in creating flood vulnerability maps, which could represent an important tool for local authorities and a support for flood risk management policies

    Possible Subjects for Examination, Grades V-VIII

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    The present book tries to offer students and teachers knowledge evaluation tools for all the chapters from the current Romanian mathematics syllabus. In the evolution of teenagers, the phase of admission in high schools mobilizes particular efforts and emotions. The present workbook aims to be a permanent advisor in the agitated period starting with the capacity examination and leading to the admittance to high school. <br

    Prediction of the residual stress after quenching of 6061 aluminium alloy plates by using mathematical modelling

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    The purpose of this article is to better understand the behavior of the residual stresses in aluminium alloy plates by using mathematical modelling. Quenching of aluminium alloy plates causes an uneven temperature variation in aluminum alloy plates, and elastic and elasto-plastic deformations occur inside the material. The latter causing the formation of deformations and residual stresses. The non-linear thermo-mechanical direct coupled analysis of the quenching process for a 6061 aluminium alloy plate was achieved by using ANSYS finite element software. The residual stresses due to solid thermal effects were determined by calculation of the Third principal stresses, the most negative or compressive. The developed mathematical model offers a support in the understanding the behavior of the residual stresses in aluminium alloy plates and a better control of them
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