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Search Results: 1 - 10 of 91946 matches for " Videnovi?-Mi?i? Mirjana "
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Low-frequency noise of a Dual-Gate MOSFET in linear region
Videnovi?-MiiMirjana,Jevti? Milan,Na? Laslo
Journal of Automatic Control , 2006, DOI: 10.2298/jac0601037v
Abstract: This paper presents results of low frequency noise measurements for a Dual-Gate MOSFET (DGMOSFET) in linear region. DGMOSFET working conditions are chosen in order to set both inner transistors in linear regime. Results are discussed with the use of the unified 1/f noise model.
Influence of current reuse LNA circuit parameters on its noise figure
Radi? Jelena,Djugova Alena,Videnovi?-MiiMirjana
Serbian Journal of Electrical Engineering , 2009, DOI: 10.2298/sjee0903439r
Abstract: A 2.4 GHz low noise amplifier (LNA) with a bias current reuse technique is proposed in this work. To obtain the optimum noise figure (NF) value, dependence of NF on its most influential LNA parameters has been analyzed. Taking into account the LNA design requirements for other figures of merit, values of the circuit parameters are given for the optimum noise figure.
Frequency of congenital abnormalities in mortality of fetuses and newborns autopsied in 1991 and 2001 at the Department of pathology and histology in Novi Sad
Eri? Mirela,Vu?kovi? Nada,Pilija Vladimir I.,Mi?oli? Mirjana
Medicinski Pregled , 2003, DOI: 10.2298/mpns0308373e
Abstract: Introduction Congenital malformations are morphological developmental anomalies visible during clinical examination or autopsy (in case of death, stillborn or abortion). Their incidence in human population is estimated to be between 5-10%, and perinatal mortality rate varies from 20-25%. Material and methods The research was conducted at the Department of Pathology and Histology and at the Department of Obstetrics and Gynecology in Novi Sad. We analyzed autopsy reports of newborns (under 28 days old), stillborns and miscarried fetuses in 1991 and 2001. Data on type and incidence of malformations in 1991 and 2001 were compared in order to determine statistically significant differences. Results Autopsy reports for 1991 revealed malformations in 21 cases, whereas autopsies were performed in 103 fetuses and newborns. The total number of deliveries at the Department of Obstetrics and Gynecology in Novi Sad was 6.160. Autopsy reports for 2001 revealed malformations in 33 cases, and autopsies were performed in 126 fetuses and newborns. The total number of deliveries at the Department of Obstetrics and Gynecology in Novi Sad was 6.101. Comparison regarding incidence of malformations in 1991 and 2001, showed no statistically significant difference. Discussion Congenital malformations are the most important cause of prenatal and perinatal mortality and morbidity. One reason for that is better treatment of other diseases, but on the other side, there are more toxic materials in human environment. Conclusion It is concluded that the incidence of congenital malformations in mortality of fetuses and newborns is high (20.39% in 1991, and 26.19% in 2001). We can also point to increase of central nervous system malformations in comparison with malformations of other organ systems.
Fatigue in sarcoidosis: Detection and treatment
Vu?ini? Violeta,Stojkovi? Mirjana,Milenkovi? Branislava,Videnovi?-Ivanov Jelica
Srpski Arhiv za Celokupno Lekarstvo , 2012, DOI: 10.2298/sarh1202104v
Abstract: Fatigue is a prominent symptom in a large number of medical conditions, malignant and infectious diseases. Fatigue is also a prominent symptom of sarcoidosis. The occurrence of fatigue in sarcoidosis is well known but exact incidence has not been established and varies from 30-70% of patients depending on age, sex and organ involvement by the granulomatous process. The exact definition of fatigue varies broadly. It can be both physical and mental. The patients describe their sensation of fatigue qualitatively different from that fatigue they experienced before they became sick. Fatigue has a major impact on the quality of life in sarcoidosis. Establishing the extent of fatigue in sarcoidosis provides relevant insight regarding the patient’s quality of life. Unfortunately there is no objective parameter for assessing fatigue in sarcoidosis. Generally, fatigue is detected by means of questionnaires. Regarding the therapy, there is no effective treatment for fatigue in sarcoidosis.
Young people's leisure time: Gender differences
Marina Videnovi,Jelena Pe?i,Dijana Plut
Psihologija , 2010,
Abstract: Over the last three decades, topics relating to young peoples leisure time have become increasingly more present in academic literature. Among the numerous studies that delve into this subject, results point towards a relationship between the way teenagers spend their leisure time and their gender. In this study we wanted to answer the question if gender differences were evident in the way secondary school students in Serbia spent their leisure time. This problem was not looked into in more detail among secondary school students in Serbia. We conducted a survey on a sample of 922 secondary school teenagers from the 1st to 4th grade(ages 15–19) from nine Serbian towns. Research in this field commonly uses the rating scale. In this paper we have constructed an instrument that represents a methodological innovation in approaching a particular set of problems. It was a questionnaire. The task was to name all the activities they participated in, and the time frame in which the activities took place, over the course of one weekday and the Saturday of the previous week. The activities which best differentiate these two groups of surveyed teenagers are: sports, studying, computer use, spending time at friends’ homes and grooming. We did not discover differences in participating in creative activities while foreign studies show that such activities are more typical for girls.
A model of a successful utilization of a high genetic potential of maize yield
Pavlov Milovan,Saratli? Goran,Videnovi? ?ivorad,Stani?i? Zoran
Genetika , 2008, DOI: 10.2298/gensr0802191p
Abstract: The principle of a system, defined as a ZP system, implying corresponding relationship among research, seed production and seed marketing, is that each segment within the system has its tasks and responsibilities, as well as, a clear interest. This system was established at the Maize Research Institute, Zemun Polje, almost half a century ago. The crucial characteristic is that this system encompasses obtained results of scientific accomplishments (patent - a released hybrid), optimal utilisation of the environmental conditions, facilities for seed drying, processing and packing, staff and transport capacities. The ZP system provides the economic interest of all participants in studies and the maize seed production. The fundamental base of the quality seed production within the ZP system is a multidisciplinary programme on maize breeding, as well as, 535 released hybrids with standard and specific traits. According to regulations in foreign countries, approximately 100 ZP maize hybrids have been released abroad. Agroecological conditions in Serbia are favorable for the development of the best genotypes and the production of basic and certified maize seed. There 10 processing plants that apply recent technologies in the maize seed processing procedure. Several generations of experts have been trained and gained experience within the maize seed production. Three seed testing laboratories have been accredited by the International Seed Testing Association. According to regulations in Serbia, monitoring of seed production under field conditions, and further on, during the processing practice is done only by designate authorities. This study presents one of successful systems of the seed production organization applicable in countries with similar conditions.
Demographic features of old people in Belgrade
Deved?iMirjana
Glasnik Srpskog Geografskog Dru?tva , 2007, DOI: 10.2298/gsgd0702093d
Abstract: The process of demographic ageing is one of the most apparent features of the demographic development of Serbia. The increase of the percentage of aged population is also present in Belgrade, although Belgrade itself, being the center of immigration and the major urban agglomeration, has a specific population development. This paper analyzes the dynamics and demographic features of the citizens of Belgrade older than 60, in the period between 1981 and 2000. It discusses the changes in gender and age distribution of this population group, as well as the processes of ageing and feminization of the elders. It also indicates related differences between the municipalities of Belgrade, as well as between the City of Belgrade, the Settlement of Belgrade and the settlements of Belgrade outside the inner urban zone.
Feminization of migrations?
Morokva?iMirjana
Stanovni?tvo , 2010, DOI: 10.2298/stnv1002025m
Abstract: Women have always taken part in migrations, but their presence varied depending on their origins, on the labour market situation both in the areas of origin and in the target areas, as well as the migration policies in the immigration areas. Their presence was not always visible and did not attract as much scholarly and political attention as today. What happened, how can one explain such an interest lately, whereas only few years ago the subject was marginal, in the shadow of the "mainstream - malestream", i.e. migration as a phenomenon which focuses on geographic mobility of men, while women are not considered as equal protagonists, they either follow or remain at home. Could the so called "feminization" of migration explain the great and sudden interest for women and gender in migrations? This text critically examines the notion of "feminization" considered today as one of the main dimensions of global migration flows. Drawing on trends both globally and in specific countries, it shows that "feminization" is neither a new nor a sudden trend and entails variations depending on the origins, level of development and maturity of migration flows. In some groups men were primo-migrants and with a gradual feminization the flows reach a balanced sex ratio. There where women migrated first, or became numerically predominant, one observs the opposite trend: a "masculinization". Some authors rightly refer to "gender transition", the term which covers both trends. It is argued in the conclusion that the visibility and growing interest for women in migration and, more recently, for a gender perspective in migration, is not only due to the changing migration patterns and profile of migrants but also to the renewal of theoretical perspectives in migration and gender studies in a context that largely facilitated that renewal. The focus of our attention today on specific aspects of migration is triggered not only by genuine changes in migration trends, but it is also a result of a long process of visibilisation in the academic production on migration, women and gender. These trends may have existed earlier in the migration history but had remained in the shadow of categories defining, recording and analyzing migration.
Subject of research on effects of tourism on population development
Deved?iMirjana
Stanovni?tvo , 2007, DOI: 10.2298/stnv0702063d
Abstract: The importance of tourism in the context of economic and demographic recovery of certain regions has created an image of tourism as a development catalyst. Thus strategies of revitalization in depopulated and passive regions often consider tourism as an activity that can speed up the development and successfully valorize existing natural, cultural and demographic potentials. This "key" is used mainly in the absence of other development resources since tourism valorizes issues that other industries ignore (landscape features, ethnical heritage, authentic folk architecture, etc). In addition it is more difficult to recommend the right forms of tourism to be developed in depopulated regions, as well as to estimate the resulting economic and demographic effects. To this end, there are success stories, but there is also evidence of non-rational initiatives and projects that were never completed. This paper attempts to discover the most logical links between population development and tourism development, based on some important characteristics of population development. The characteristics used are overall population increase, population migrations, population structures and changes in households. They were selected because they best reflect not only direct, but also indirect multiplicative effects of tourism. Along with the theoretical and methodological background, the research is also supported by selected examples, interviews, and demographic analyzes. The effects are not universal. They depend on the region, the kind of tourism and the degree of its development, the demographic situation as it is, and the research approach, since global and local effects need not necessarily be unidirectional. Population increase initiated by tourism development is achieved due to the migration component, but the effects are most obvious at the level of tourist regions and their tourist centers. One can also note counter processes in some places that have tourist function. The level of tourism development and social attitudes to tourism development determine the sense of perspective that makes people to move. The most direct effects are reflected in the restructuring of active population w.r.t. the existing industries and the domination of tertiary activities. The activity of women is increased, as well as their responsibilities in households. The most diverse effects of tourism factors are sublimed in households. Such effects are not possible with small-scale tourism that is the most appropriate one in depopulated regions. The effects are best reflected in strengthenin
Development of reprogenetics and its demographic aspects
Deved?iMirjana M.
Stanovni?tvo , 2004, DOI: 10.2298/stnv0404045d
Abstract: The development of reprogenetics during the last two decades of the XX century has brought a new age of reproduction. The paper surveys different types of reprogenetics in a wider sense, i.e. different assisted reproductive technologies (ART) that include manipulation of female reproductive cell out of a woman's womb. Development of reprogenetics is documented by available quantitative indicators of the number and success of ART procedures in developed countries at the beginning of the XXI century. Since 1978, when the first baby was born from in vitro fertilization, the number of children born that way has reached 1% of all children, and in some countries even over 3%. Moreover, existing documentation is incomplete and does not include all forms of assisted reproduction - in reality, the importance of assisted reproduction is even higher and becomes demographically significant. Hence the paper indicates existing and potential effects of the ART development on the demographic development i.e. on specific demographic aspects of this phenomenon. It also points out the effects on the level of fertility, on the changes of direct fertility determinants, and on the levels of mortality and infant mortality, as well as a new understanding of birth control, the possibility of affecting biological structures, and the changes of the fundaments of marriage and family. Development perspectives of reprogenetics are also being raised in the context of bioethical discussions and indicate ethical dilemmas related to assisted reproduction. Solutions to the dilemmas define the scope of applying new reproductive technologies in the future.
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