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Search Results: 1 - 10 of 401702 matches for " Tomislav M Jelic "
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Calcifying nanoparticles associated encrusted urinary bladder cystitis
Tomislav M Jelic,Rod Roque,Uzay Yasar,Shayna B Tomchin
International Journal of Nanomedicine , 2008,
Abstract: Tomislav M Jelic1, Rod Roque1, Uzay Yasar2, Shayna B Tomchin1, Jose M Serrato2, Samuel G Deem3, James P Tierney3, Ho-Huang Chang11Department of Pathology Charleston Area Medical Center, Charleston WV, USA; 2Urology Center of Charleston, Charleston WV, USA; 3Urologic-Surgical Assoc. of Charleston, Charleston WV, USAAbstract: Encrusted cystitis is a subtype of chronic cystitis characterized by multiple calcifications in the form of plaques located in the interstitium of the urinary bladder mucosa and frequently associated with mucosal ulcers. It is a very rare disease of controversial etiology. Our transmission electron microscopy of the calcified plaques of encrusted cystitis has revealed that the smallest formed particles (elementary units) of these calcifications are electron-dense shells surrounding an electron lucent core, diagnostic of calcifying nanoparticles (previously called nanobacteria). We pioneer the notion that calcifying nanoparticles are the causative agents of encrusted urinary bladder cystitis.Keywords: calcifying nanoparticles, nanobacteria, encrusted cystitis
Interrelationships between Grain Nitrogen Content and other Indicators of Nitrogen Accumulation and Utilization Efficiency in Wheat Plants
Nikolic,Olivera; Zivanovic,Tomislav; Jelic,Miodrag; Djalovic,Ivica;
Chilean journal of agricultural research , 2012, DOI: 10.4067/S0718-58392012000100018
Abstract: the topic of n wheat nutrition was prevalent during the last decades of the 20th century for many reasons such as energy crises, profitability of small grain production, and ecosystem protection and preservation. the objective of this study was to determine the interrelationships between wheat (triticum aestivum l.) grain n content and other indicators of n nutrition efficiency to better understand the n nutrition process in wheat plants. the experiment included 30 wheat cultivars and experimental lines from serbia. plant samples of each genotype were taken at anthesis and maturity. the following parameters related to n accumulation and translocation within the wheat plant were calculated: n content (at anthesis, grain, straw, and total at maturity), n harvest index (nhi), n reutilization (n reu), and n lost (-) or gained (n post-anthesis). our results showed that n content in the aboveground part of the plant expressed very strong direct positive effects on n yield (phenotypic coefficient 3.78** to 9.34** and genotypic coefficient 1.43** to 2.32**), while its indirect effects varied. the influence of independent variables on grain n content has been changing from year to year in a negative way. total n accumulation (n total) had the highest negative direct effect in the first year of the study (phenotypic coefficient -2.11**), n total in the second (phenotypic coefficient -2.78**), and n reutilization in the third (phenotypic coefficient -8.49**). genotypic coefficients indicate that the most frequent strong direct negative effect was n reutilization (-0.47** and -0.99** in the first 2 yr of research, respectively). nitrogen reutilization and its current assimilation are very important and related to grain n supply processes. their interaction leads to the conclusion that forming n yield is a very complex mechanism and, as a result, grain yield and quality. the abovementioned parameters could be considered as important criteria in wheat breeding to improve producti
Interrelationships between Grain Nitrogen Content and other Indicators of Nitrogen Accumulation and Utilization Efficiency in Wheat Plants Relaciones entre el Contenido de Nitrógeno del Grano y otros Indicadores de Acumulación y Eficiencia de Utilización de Nitrógeno en Plantas de Trigo
Olivera Nikolic,Tomislav Zivanovic,Miodrag Jelic,Ivica Djalovic
Chilean Journal of Agricultural Research , 2012,
Abstract: The topic of N wheat nutrition was prevalent during the last decades of the 20th century for many reasons such as energy crises, profitability of small grain production, and ecosystem protection and preservation. The objective of this study was to determine the interrelationships between wheat (Triticum aestivum L.) grain N content and other indicators of N nutrition efficiency to better understand the N nutrition process in wheat plants. The experiment included 30 wheat cultivars and experimental lines from Serbia. Plant samples of each genotype were taken at anthesis and maturity. The following parameters related to N accumulation and translocation within the wheat plant were calculated: N content (at anthesis, grain, straw, and total at maturity), N harvest index (NHI), N reutilization (N reU), and N lost (-) or gained (N post-anthesis). Our results showed that N content in the aboveground part of the plant expressed very strong direct positive effects on N yield (phenotypic coefficient 3.78** to 9.34** and genotypic coefficient 1.43** to 2.32**), while its indirect effects varied. The influence of independent variables on grain N content has been changing from year to year in a negative way. Total N accumulation (N total) had the highest negative direct effect in the first year of the study (phenotypic coefficient -2.11**), N total in the second (phenotypic coefficient -2.78**), and N reutilization in the third (phenotypic coefficient -8.49**). Genotypic coefficients indicate that the most frequent strong direct negative effect was N reutilization (-0.47** and -0.99** in the first 2 yr of research, respectively). Nitrogen reutilization and its current assimilation are very important and related to grain N supply processes. Their interaction leads to the conclusion that forming N yield is a very complex mechanism and, as a result, grain yield and quality. The abovementioned parameters could be considered as important criteria in wheat breeding to improve production efficiency and reduce adverse impacts of N fertilizers on the ecosystem. La nutrición de N en trigo se ha vuelto un tema actual durante las últimas décadas del siglo pasado por muchas razones, como la crisis energética, rentabilidad de la producción de cereales de grano peque o y la preservación y protección de los ecosistemas. El objetivo de este estudio fue determinar las interrelaciones entre el contenido de N del grano de trigo (Triticum aestivum L.) y otros indicadores de la eficiencia de nutrición del N para mejorar la comprensión del proceso de nutrición de N en la planta de trigo. N
Diagnostic and therapeutic approach to coexistent chronic obstructive pulmonary disease and obstructive sleep apnea
Sanja Jelic
International Journal of COPD , 2008,
Abstract: Sanja JelicDivision of Pulmonary, Allergy, and Critical Care Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USAAbstract: The high prevalence of both obstructive sleep apnea (OSA) and chronic obstructive pulmonary disease (COPD) in Western societies is well documented. However, OSA frequently remains unrecognized and untreated among patients with COPD. Patients with both conditions have a greater risk for fatal and nonfatal cardiovascular events compared with patients with COPD or OSA alone. Efficacious treatment with continuous positive airway pressure reduces the risk of cardiovascular complications in patients with OSA. The aim of the present review is to discuss the diagnostic approach to patients with both conditions and to delineate the benefits of timely ecognition and treatment of OSA in patients with COPD.Keywords: chronic obstructive pulmonary disease, obstructive sleep apnea, continuous positive airway pressure, nocturnal arterial oxyhemoglobin desaturation
Violence and youth in the region
Marija Jelic
Sfera Politicii , 2011,
Abstract: In the following article you will be able to see how the violence among youth is manifested in society and the causes for the occurrence of aggression and violence. Aggression in children is evolving from an early age, later it increases in school and grew into violence, verbal and physical, then is expressed through the community and also historically violence is passed on generations in the creation of stereotypes and speech of hate against other nations.
Cosmological 21cm experiments: Searching for a needle in a haystack
Vibor Jelic
Physics , 2010,
Abstract: There are several planned and ongoing experiments designed to explore the Epoch of Reionization (EoR), the pivotal period during which the gas in the intergalactic medium went from being entirely neutral to almost entirely ionized. These experiments will probe the EoR, through the redshifted 21 cm line from neutral hydrogen, using radio arrays: e.g. Low Frequency Array (LOFAR) and Murchinson Widefield Array (MWA). Unfortunately however, the cosmological 21 cm signal is highly contaminated by astrophysical foregrounds and by non-astrophysical and instrumental effects. Therefore, to reliably detect the cosmological signal, it is essential to understand very well all data components, their influence on the desired signal and explore additional complementary or corroborating probes of the EoR. These proceedings give an overview of observational constrains of the foregrounds, present theoretical efforts to model the foregrounds, and discuss a problem of the foreground removal. The major results are presented for the LOFAR-EoR experiment.
Thermodynamic designing of a solar block of flats with a tromb's wall with ventuce holes
Radosavljevi? Jasmina,Lambi? Miroslav,Pavlovi? Tomislav M.
Facta Universitatis Series : Physics, Chemistry and Technology , 2004, DOI: 10.2298/fupct0401027r
Abstract: The paper examines the effects of passive solar heating of an individual residential object, located in Ni , that occur by the use of a combined passive system consisting of a Tromb's wall with ventuce holes and windows for direct insulation. The diagrams are included that show the inner air temperatures of a thermally insulated residential object with A Tromb's wall made of brick and concrete, 20cm and 45cm thick, with ventuce openings.
Resolving Curvature Singularities in Holomorphic Gravity
Christiaan L. M. Mantz,Tomislav Prokopec
Physics , 2008, DOI: 10.1007/s10701-011-9570-3
Abstract: We formulate holomorphic theory of gravity and study how the holomorphy symmetry alters the two most important singular solutions of general relativity: black holes and cosmology. We show that typical observers (freely) falling into a holomorphic black hole do not encounter a curvature singularity. Likewise, typical observers do not experience Big Bang singularity. Unlike Hermitian gravity \cite{MantzHermitianGravity}, Holomorphic gravity does not respect the reciprocity symmetry and thus it is mainly a toy model for a gravity theory formulated on complex space-times. Yet it is a model that deserves a closer investigation since in many aspects it resembles Hermitian gravity and yet calculations are simpler. We have indications that holomorphic gravity reduces to the laws of general relativity correctly at large distance scales.
Use of the SSF equations in the Kojima-Moon-Ochi thermodynamic consistency test of isothermal vapour-liquid equilibrium data
JELENA M. JELIC,ALEKSANDAR Z. TASIC,BOJAN D. DJORDJEVIC,SLOBODAN P. SERBANOVIC
Journal of the Serbian Chemical Society , 2000,
Abstract: The Kojima-Moon-Ochi (KMO) thermodynamic consistency test of vapour liquid equilibrium (VLE) measurements for 32 isothermal data sets of binary systems of various complexity was applied using two fitting equations: the Redlich-Kister equation and the Sum of Symmetrical Functions. It was shown that the enhanced reliability of the fitting of the experimental data can change the conclusions drawn on their thermodynamic consistency in those cases of VLE data sets that are estimated to be near the border of consistency.
Mechanisms of endothelial dysfunction in obstructive sleep apnea
Amy Atkeson,Sanja Jelic
Vascular Health and Risk Management , 2008,
Abstract: Amy Atkeson, Sanja JelicDivision of Pulmonary, Allergy, and Critical Care Medicine, Columbia University College of Physicians and Surgeons, New York, NYAbstract: Endothelial activation and inflammation are important mediators of accelerated atherogenesis and consequent increased cardiovascular morbidity in obstructive sleep apnea (OSA). Repetitive episodes of hypoxia/reoxygenation associated with transient cessation of breathing during sleep in OSA resemble ischemia/reperfusion injury and may be the main culprit underlying endothelial dysfunction in OSA. Additional factors such as repetitive arousals resulting in sleep fragmentation and deprivation and individual genetic suseptibility to vascular manifestations of OSA contribute to impaired endothelial function in OSA. The present review focuses on possible mechanisms that underlie endothelial activation and inflammation in OSA.Keywords: endothelial, obstructive sleep apnea, inflammation, dysfunction
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