oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Search Results: 1 - 10 of 171 matches for " Niki Georgatou "
All listed articles are free for downloading (OA Articles)
Page 1 /171
Display every page Item
Severe Asthma: Definitions, risk factors and phenotype characterization
Penny Moraitaki,Despina Papamichail,Niki Georgatou
Pneumon , 2010,
Abstract: SUMMARY. The correct diagnosis of asthma is usually made easily and most patients with asthma respond to therapy. Approximately 5-10% of patients with asthma, however, have disease that is difficult to control despite administration of maximal doses of inhaled medications. It appears that asthma is a heterogeneous disorder which presents not as a single disease but rather as a complex of multiple, separate syndromes that overlap. Although the various different phenotypes of asthma have been long recognized, they are still poorly characterized. Improved phenotypical characterization and understanding of the underlying pathobiology are necessary for linkage of specific genotypes with clinical disease manifestations, for possible development of biomarkers and for devising advanced, phenotype-targeted asthma treatment. This review reports on the asthma phenotypes that have been best described and analyses the methods used to define them. Pneumon 2010, 23(3):260-292.
Elementary Students’ Views and Experiences on Sport Education in Cyprus  [PDF]
Niki Tsangaridou, Chrysostomos Lefteratos
Advances in Physical Education (APE) , 2013, DOI: 10.4236/ape.2013.31005
Abstract: Sport education is a curriculum and instructional model designed to offer authentic, educationally rich sport experiences for girls and boys in the context of school physical education (Siedentop, 1994; Siedentop, Hastie, & Van der Mars, 2004). The literature on sport education suggests that most of the studies examining its effectiveness are within middle or secondary schools and there are fewer studies on the perceptions or representations of the model by students in primary settings (Hastie, Ojeba, & Luquin, 2011; Kinchin, 2006; Wallhead & O’Sullivan, 2005). This study presents findings related to primary students’ representations and practices of sport education. More specifically, the purpose of this study was to explore and describe Greek-Cypriot students perceptions and experiences of a basketball season that followed a sport education format. Twenty-two (22) year—6 students (11- to 12-year-old), 12 boys and 10 girls, from a public primary school in Cyprus, participated in the sport education unit which lasted thirteen (13) lessons. Data were collected through interviews, questionnaires, observations, and documents (unit and lesson plans) and were later analysed inductively (Patton, 2001). Results suggested that students in this study were successfully affiliated within their teams and appropriate opportunities were created for autonomous and meaningful learning. In addition, findings revealed that during the lessons there was a joyful and positive atmosphere which enabled all members to work hard as a whole in order to achieve their goals. Based on our results we have drawn the following two conclusions: first, the model of sport education enhanced the level of participation and motivation of students towards physical education; se-
Hydrogeological approach to the regional analysis of low flow in medium and small streams of the hilly and mountainous areas of Serbia
Niki? Zoran
Glasnik ?umarskog Fakulteta , 2006, DOI: 10.2298/gsf0694009n
Abstract: During the long rainless spells of the dry season, flows in medium and small streams get reduced to what is generally known as "low flow". For ungauged streams, the controlling "low flows" are determined using the regional analysis method. In the presently described exploration, the method applied was based on the assumption that dry weather discharges in medium and small rivers depended on the hydrogeological conditions. The controlling effect of hydrogeology on the natural low flow in medium and small streams of the hilly and mountainous part of Serbia was analyzed applying the theory of multiple linear regression. The thirty-day minimum mean 80 and 95 per cent exceedance flows were taken for dependent variables, and quantified hydrogeological elements as independent variables. The analysis covered streams that had small or medium size catchment areas. The treated example encompassed sixty-one gauged catchments. The resulting regional relations for the thirty day minimum mean 80 and 95 per cent exceedance flows are presented in this paper. The quality of the established relation was controlled by relevant statistic tests.
The Body and the Senses in the Work of Cassia the Hymnographer: Literary Trends in the Iconoclastic Period
Niki TSIRONIS
Byzantina Symmeikta , 2008,
Abstract: No abstract
The Impact of International Business in Global Economy
Niki Geiersbach
Business Intelligence Journal , 2010,
Abstract: With the dawn of globalization, international business is becoming increasingly popular. Multinational organizations are among the most profitable in the world. A company needs to be aware of the language and culture of the country where it plans to embark with its investment. Politics and laws of the nation can either make international business easy or hard. With the success of international business, its future is gleaming, on a global scale.
From Darwin to the Census of Marine Life: Marine Biology as Big Science
Niki Vermeulen
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0054284
Abstract: With the development of the Human Genome Project, a heated debate emerged on biology becoming ‘big science’. However, biology already has a long tradition of collaboration, as natural historians were part of the first collective scientific efforts: exploring the variety of life on earth. Such mappings of life still continue today, and if field biology is gradually becoming an important subject of studies into big science, research into life in the world's oceans is not taken into account yet. This paper therefore explores marine biology as big science, presenting the historical development of marine research towards the international ‘Census of Marine Life’ (CoML) making an inventory of life in the world's oceans. Discussing various aspects of collaboration – including size, internationalisation, research practice, technological developments, application, and public communication – I will ask if CoML still resembles traditional collaborations to collect life. While showing both continuity and change, I will argue that marine biology is a form of natural history: a specific way of working together in biology that has transformed substantially in interaction with recent developments in the life sciences and society. As a result, the paper does not only give an overview of transformations towards large scale research in marine biology, but also shines a new light on big biology, suggesting new ways to deepen the understanding of collaboration in the life sciences by distinguishing between different ‘collective ways of knowing’.
Geomorphological Evolution and Fluvial System Development during the Holocene: The Case of Vouraikos River Evolution in Kalavrita Plain, Northern Peloponnese, Greece  [PDF]
Leonidas Stamatopoulos, Georgios Alevizos, Niki Evelpidou
Journal of Geoscience and Environment Protection (GEP) , 2018, DOI: 10.4236/gep.2018.61002
Abstract: Fluvial geomorphology is affected by physical conditions which allow its adaptation due to high dynamics and environmental influences. Fluvial morphological changes are manifested as a result of tendency of the river system to maintain its physical balance. Our study area is the upper and middle flow part of Vouraikos river and surrounding area, near the NW border of Chelmos mountain in Northern Peloponnese, near the town of Kalavrita, at an altitude of 800 m. The area is part of the Skepasto basin, constituting of a graben with a general E-W direction that was developed NW of Kalavrita. The area comprises of Mesozoic, Upper Triassic-Jurassic limestone and dolomite of the Tripolitsa unit External Hellenides and Plio-Pleistocene fluvio-lacustrine sequences, while its tectonic structure is characterized mainly by normal faults. The geomorphological landscape is characterized by alluvial deposits and important geomorphological features including fluvial terraces, alluvial fans, fluvial scarps and their main rill washes. This area has been a place of major human activity as shown by the findings of many uncovered artifacts and a settlement. Through a paleographic reconstruction, detailed field investigations, in combination with the compilation of geomorphological maps using GIS software and archaeological evidence found in the area, we attempted to reconstruct the fluvial evolution of Vouraikos river and identify the major geomorphological factors that led to, and influenced it. Finally, the link between cultural activities and sedimentary processes is also studied. The recorded environmental variations had a great impact on the geomorphological shaping and instability of Kalavrita plain and Vouraikos river and are being reflected on the buried settlement. Sediment fluxes were high enough to form strath terraces, while local tectonics aided in the strath and fill terrace creation. Smaller and younger strath terraces, formed during increased sediment supply periods, when the valley was at a higher level.
Lumbar Spinal Stenosis in Older Adults - Gender Differences
Niki Matveeva,Miodrag Vrchakovski
Macedonian Journal of Medical Sciences , 2009,
Abstract: Background. Spinal stenosis usually occurs in older adults. The treatment of this condition is with varying success It is necessary to assess the risk and the expected benefits of the treatment (surgical or not surgical) in the rapidly growing old segment of population.Aim. The aim of this study is to present the anatomic and segmental distribution of spinal stenotic changes in the symptomatic old adult males and females and to contribute toward framing an agenda for an optional treatment of this condition in the old segment of the population.Material and Methods. In the study the anatomic presence of spinal stenotic changes in the symptomatic older adults, referred for lumbar MRI was evaluated. The segmental distribution of spinal stenosis in old adult males and females, if the anatomical unit is the vertebral body and the disc bellow it was presented. Results. Of the 27 male and female patients with spinal stenosis, 65 and older, according to the localization of the spinal stenosis, the most frequent affected levels were L4 and L3. In the old adult female patients stenotic changes affected more proximal levels of the lumbar spine and there was a significantly larger number of female patients with stenotic changes on two,three and even four adjacent levels. Conclusion. Spinal stenosis in older adults is multilevel and multifactorial disorder, caused by different factors related to the degenerative processes.
AIR POLLUTION AND CARDIOVASCULAR DISEASE
Dragana Niki,Aleksandra Stankovi?
Acta Facultatis Medicae Naissensis , 2005,
Abstract: The development of cardiovascular disease is a result of a chronic and complex interplay between genetic and environmental factors. Interest in the association between air pollution and health status has been increasingly focused on the relationship between air pollution and cardiopulmonary disease including hypertension, myocardial infarction and other circulatory disorders. There are a small number of publications on the health effects of long-term exposure. Observations related to the adverse health effects of short-term exposure are more numerous. A major challenge to systematic study in this field is the complexity of the particulate components of air pollution. Ambient air particulate matter consist of a mixture of combustive byproducts and resuspended crustal materials, as well as biological materials such as pollen, endotoxins, bacteria and viruses. Inhaled fine particles can be detected within minutes of exposure in the systemic circulation, where they can persist for hours, providing a route of entry into all organ systems. Although epidemiological studies have linked air pollution with cardiopulmonary mortality, underlying biological mechanisms remain largely unknown. Current biologic knowledge suggests direct effects of pollutants on the cardiovascular system, blood, and lung receptors and indirect effects mediated through pulmonary oxidative stress and inflammatory responses. We need new studies focused only to those issue because the quality of the air in our environment has a most essential and direct impact on the health and quality of life.
EXPOSURE TO AIR POLLUTION AND DEVELOPMENT OF OBSTRUCTIVE BRONCHITIS
Slavica Stevanovi?,Dragana Niki
Acta Medica Medianae , 2005,
Abstract: The aim of this research was to investigate the potential relationship between the longterm exposure to air pollution, as a risk factor, and the development of allergic reactions in the population. The observed sample consisted of Nis citizens of different age groups who lived in areas with high concentrations of air pollutants (investigated group) such as the Square of the October Revolution and Sindjelic’s Square (investigated group), as well as the citizens of Niska Banja (control group) which is the zone with the lowest concentration of air pollution. The investigation was carried out in the Public Health Institute in the period between 1996 and 2000. A significance test was performed using a Mantel-Haenszel chi square test. This test was used to check for a statistically significant difference between the incidence of the obstructive lung disease between the investigated group and the control group across all age groups. The cross-risk and relative risk were determined. The highest value of the chi square test was determined in the age group 26-50 (RR=3.50), in the group up to 25, RR=2.25, and in the group above 51, RR=1.89. The obtained results prove that the incidence of the obstructive lung disease is significantly higher in the exposed population than in the non-exposed.
Page 1 /171
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.