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Search Results: 1 - 10 of 1480 matches for " Stojadinovi? Aleksandra "
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Mortality rate of adolescents in the Republic of Serbia
Ron?evi? Nevenka,StojadinoviAleksandra
Medicinski Pregled , 2008, DOI: 10.2298/mpns0810503r
Abstract: Introduction. Adolescents are the healthiest age group of the population but many studies show that period of adolescence is marked by significant morbidity and mortality. Health indicators of adolescent population have been getting worse during past decades. The aim of this study was to determine mortality rate of adolescents in the Republic of Serbia to determine most common causes of death in adolescence and to explore regional differences in adolescent mortality. Materials and methods: Documentation tables of vital statistics in the Republic of Serbia in 2004, and Documentation Tables of Census 2002 were used. The causes of mortality were classified according to ICD 10. Results and discussion. Specific morality rate in the Republic of Serbia is 32.08 on 100.000 adolescents. The leading causes of death in adolescence are injuries, malignancies and non specified causes, and there are significant regional differences, as well as gender and age differences. The mortality rate of male adolescents is about 2.4 times higher than the mortality rates in female adolescents. The mortality rate of older adolescents is significantly higher than mortality rate of younger adolescents. The mortality of adolescents is higher in Vojvodina than in Central Serbia. Precise data of external causes of death do not exist in vital statistics in our country. Conclusion. The mortality of adolescents is high, especially for older male adolescents (15 to 19 years of age) and majority of deaths among adolescents could be prevented. It is necessary to improve data of vital statistics to get better insight into causes of adolescent death.
Fever without a focus in children 0-36 months of age
Kuzmanovi? Svetlana,Ron?evi? Nevenka,StojadinoviAleksandra
Medicinski Pregled , 2006, DOI: 10.2298/mpns0604187k
Abstract: Introduction. About 20% of fevers in childhood have no apparent cause. A small, but significant number of these children may have a seroius bacterial infection. Fever without a focus of infection is an acute febrile illness with rectal temperature of 38°C or higher in children younger than 36 months, without localizing signs or symptoms. Practice Guidelines for Medical Care. In this article, practical recommendations for medical care of febrile children 0-36 months of age are given, bearing in mind children's age, clinical presentation (toxic manifestations) and risk for serious bacterial infection (sepsis, meningitis, pneumonia, urinary tract infection...). Toxic appearance is a clinical presentation characterized by lethargy, poor perfusion, marked hypo/hyperventilation and cyanosis. All febrile children under 36 months of age, who are appearing toxic, require hospitalization, evaluation for sepsis and administration of empirical antibiotic therapy. All febrile neonates, however, must be hospitalized: cultures of blood, urine and spinal fluid should be taken and empirical antibiotic therapy administered immediately. Febrile infants, 28 to 90 days of age, need to be evaluated in order to determine whether they are in the low-risk group for serious bacterial infections (Rochester Criteria). Yale Observation Scale is recommended to assess febrile children aged 3-36 months, and the risk of occult bacteriemia. Febrile children, 3-36 months of age who appear well, with temperature of less than 39°C without focus, should be closely followed up without laboratory tests and antibiotics and 2-3 days later reexamined. In febrile children, 3-36 months old, with temperature of 39°C and above, without toxic manifestations, blood culture should be taken and ceftriaxone 50 mg/kg/in a single dose should be given, if leukocyte count is 15000/mm3 or absolute neutrophil count is over 10.000/mm3 .
Chronic diseases in adolescence
Ron?evi? Nevenka,StojadinoviAleksandra,Odri Irena
Medicinski Pregled , 2006, DOI: 10.2298/mpns0602033r
Abstract: Introduction. The prevalence of chronic diseases in adolescence is constantly increasing, especially in the last two decades. Adolescence is a period of important changes: body growth and development, sexual development, development of cognitive abilities, change in family relations and between peers, formation of personal identity and personal system of values, making decisions on future occupation etc. Chronic diseases in adolescence. Chronic disorders affect all development issues and represent an additional burden for adolescents. The interaction between chronic disorders and various development issues is complex and two-way: the disease may affect development, and development may affect the disease. Developmental, psychosocial and family factors are of great importance in the treatment of adolescents with chronic disorders. Chronic disorders affect all aspects of adolescent life, including relations with peers, school, nutrition, learning, traveling, entertainment, choice of occupation, plans for the future. Physicians should keep in mind that chronic diseases and their treatment represent only one aspect of person's life. Adolescents with chronic diseases have other needs as well, personal priorities, social roles and they expect these needs to be recognized and respected. Adolescent health care should be adjusted to the life style of adolescents.
Treatment of acute lower respiratory tract infections in children
Ron?evi?-Babin Nevenka P.,Popadi? Jelena,StojadinoviAleksandra
Medicinski Pregled , 2002, DOI: 10.2298/mpns0208299r
Abstract: Introduction Acute respiratory tract infections are the most common childhood diseases. A preschool child suffers up to 5-7 infections of upper airways during a year. Lower airway infections make 5-20% of all respiratory infections. Etiologic factors In developed countries, 75% of pneumonias in childhood are of viral etiology, in 15% of bacterial, and in 10% of some other causative agent (mycoplasma, rickettsiae, fungi, parasites). In developing countries, bacterial pneumonias are present in much higher percentages. Treatment Treatment of respiratory infections includes antimicrobial therapy (causal), relief of symptoms (symptomatic) and conduction of general principles in child treatment. The choice of antimicrobial drug is based on evidence of agents and their sensitivity to antimicrobial drugs, age, patient's condition, previous treatment and possible allergic reactions to the drug. In cases where we cannot provide adequate specimen for microbiologic testing, when these tests do not reveal the agent, or when therapy must be started before the agent is available, we must decide about the therapy, taking in consideration the most frequent agents, and those that would cause the most devastating clinical picture. This therapy can later be modified according to the isolated agent and its sensitivity to the drug. Conclusion Having in mind the incidence and importance of respiratory infections in morbidity and mortality of children the aim of this article was to show guidelines in treatment of respiratory infections in children. The main point remains that we should take in consideration the individual patient before all.
Treatment of acute upper respiratory tract infections in children
Ron?evi?-Babin Nevenka P.,Popadi? Jelena,StojadinoviAleksandra
Medicinski Pregled , 2002, DOI: 10.2298/mpns0210397r
Abstract: Introduction Acute respiratory tract infections are the most common diseases of childhood. A preschool child suffers up to 5-7 infections of upper airways during a year. Upper airway infections make 80 - 90% of all respiratory infections. Etiology and treatment In 75% of all cases respiratory infections are of viral etiology, 15% of bacterial and 10% are caused by mycoplasma, rickettsiae, fungi, parasites. The treatment of respiratory infections includes antimicrobial therapy (causal), relief of symptoms (symptomatic) and application of general principles of child treatment. The choice of antimicrobial drug is based on the evidence of agents and their sensitivity to antimicrobial drugs, age, patient's condition, previous treatment and possible allergic reactions to the drug. In cases where adequate specimen cannot be obtained for microbiologic tests, when these tests do not reveal the agent, or therapy must start before evidence of the agent is available, we must decide about the therapy, taking in consideration the most frequent agents, and those that would cause the most devastating clinical picture. This therapy can be modified later, according to the isolated agent and its sensitivity to the drug. Considering the incidence and importance of respiratory infections in morbidity and mortality of children, the aim of this article was to present guidelines in treatment of respiratory infections. The main point remains that the treatment should take into consideration the individual patient before all.
International trade and transnational companies: Substitutes or complements
Stojadinovi?-Jovanovi? Sandra
Medjunarodni Problemi , 2008, DOI: 10.2298/medjp0801093s
Abstract: Transnational companies are the key drivers of foreign direct investments and major actors in international trade. They are involved in more than two-third of international trade and determine its direction, composition and volume. The relationship between transnational companies and international trade is complex and interwoven, raising the following question: are transnational companies substitutes or complements of international trade? The author explores this relationship. She studies the role of these companies in international trade as a whole and in foreign trade of domestic and host countries.
Hopf algebra of building sets
Vladimir Gruji?,Tanja Stojadinovi
Mathematics , 2012,
Abstract: The combinatorial Hopf algebra on building sets $BSet$ extends the chromatic Hopf algebra of simple graphs. The image of a building set under canonical morphism to quasi-symmetric functions is the chromatic symmetric function of the corresponding hypergraph. By passing from graphs to building sets, we construct a sequence of symmetric functions associated to a graph. From the generalized Dehn-Sommerville relations for the Hopf algebra $BSet$, we define a class of building sets called eulerian and show that eulerian building sets satisfy Bayer-Billera relations. We show the existence of the $\mathbf{c}\mathbf{d}-$index, the polynomial in two noncommutative variables associated to an eulerian building set. The complete characterization of eulerian building sets is given in terms of combinatorics of intersection posets of antichains of finite sets.
A plastic collapse method for evaluating rotation capacity of full-restrained steel moment connections
Lee Kyungkoo,Stojadinovi? Bo?idar
Theoretical and Applied Mechanics , 2008, DOI: 10.2298/tam0803191l
Abstract: An analytical method to model failure of steel beam plastic hinges due to local buckling and low-cycle fatigue is proposed herein. This method is based on the plastic collapse mechanism approach and a yield-line plastic hinge (YLPH) model whose geometry is based on buckled shapes of beam plastic hinges observed in experiments. Two limit states, strength degradation failure induced by local buckling and low-cycle fatigue fracture, are considered. The proposed YLPH model was developed for FEMA-350 WUF-W, RBS and Free Flange connections and validated in comparisons to experimental data. This model can be used to estimate the seismic rotation capacity of fully restrained beam-column connections in special steel moment-resisting frames under both monotonic and cyclic loading conditions.
Characterization of Bronze Surface Layer Formed by Microarc Oxidation Process in 12-Tungstophosphoric Acid
Ubavka B. Mio?,Stevan Stojadinovi,Zoran Nedi?
Materials , 2010, DOI: 10.3390/ma3010110
Abstract: This paper is a brief review of our recent research into novel uses for heteropoly compounds as precursors for thin films that can be used as catalysts and materials with good optical, conductive and other characteristics. In view of this, we have chosen thin film obtained with 12-tungsphosphoric acid on aluminum substrates. In all cases, a relatively new, microarc oxidation technique has been used to prepare oxide coatings on substrate surfaces. Advanced physicochemical methods, AFM and SEM-EDS, XRD, Raman and Micro-Raman, and luminescence spectroscopy, as the most powerful techniques, have been used for the characterization of new materials. Possible applications have been discussed as well.
Micro alloyed steel weldability and sensibility testing on the lamellar cracks appearance
S. Stojadinovi,N. Baji?,J. Pekez
Metalurgija , 2011,
Abstract: In this work are given the testing results of mechanical properties welded joints and microstructure of micro alloyed steel as well as its sensitivity to lamellar cracks appearance. The obtained results show that steel has good resistance to lamellar cracks appearance and with an appropriate wire choice for welding, a good combination of mechanical properties could be obtained at room (ambience) temperatures as well as at low temperatures.
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