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Search Results: 1 - 10 of 584 matches for " Beli? Branislav "
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Three-Dimensional Simulations with Fields and Particles in Software and Inflector Designs  [PDF]
Branislav Radjenovi?, Marija Radmilovi?-Radjenovi?, Petar Beli?ev
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.68048
Abstract:

Particles and fields represent two major modeling paradigms in pure and applied science at all. In this paper a methodology and some of the results for three-dimensional (3D) simulations that include both field and particle abstractions are presented. Electromagnetic field calculations used here are based on the discrete differential form representation of the finite elements method, while the Monte Carlo method makes foundation of the particle part of the simulations. The first example is the simulation of the feature profile evolution during SiO2 etching enhanced by Ar + /CF4 non-equilibrium plasma based on the sparse field method for solving level set equations. Second example is devoted to the design of a spiral inflector which is one of the key devices of the axial injection system of the VINCY Cyclotron.

Total fixation of cricoarytenoid joint of a patient with rheumatoid arthritis and hashimoto thyroiditis
Stojanovi? Stevan P.,?ivi? Ljubica,Stojanovi? Jasmina,BeliBranislav
Srpski Arhiv za Celokupno Lekarstvo , 2010, DOI: 10.2298/sarh1004230s
Abstract: Introduction. The incidence of cricoarytenoid joint fixation in case of rheumatoid arthritis is 17 to 33%. In later stages of rheumatoid arthritis, a gradual fixation of cricoarytenoid joint develops and both halves of the larynx become less movable which calls for endotracheal intubation; while total fixation of this joint demands surgical tracheotomy. Hashimoto thyroiditis can display symptoms which are difficult to distinguish from the ones present in total fixation of cricoarytenoid joint caused by rheumatoid arthritis. Case Outline. A 60-year-old woman in terminal stage of rheumatoid arthritis and Hashimoto thyroiditis, diagnosed after clinical and other examinations. She was treated for strident breathing with surgical tracheotomy. The microscopic examination of the larynx with the use of laryngoscopic pincers suggested the immovability of the right and very limited movability of the left arytenoid cartilage. A computerized endovideostroboscopy showed only passive vertical vibrating movements of the right vocal cord and irregular vibrations of the left vocal cord. Conclusion. Total fixation of the cricoarytenoid joint can be caused by many pathological processes, but so far references have shown no case of rheumatoid arthritis and Hashimoto thyroiditis. In differential diagnostics, one of many examinations is the microscopic examination of the larynx, but it is very important to determine the movability of the arytenoid cartilage with the use of appropriate instruments in total endotracheal anaesthesia while the patient is fully relaxed. Movements in cricoarytenoid joints in patients with Hashimoto thyroiditis and the same conditions are preserved.
Investigations of significance of blood smear results in diagnostics of infectious and parasitic diseases in dogs
Potkonjak Aleksandar,Lako Branislav,Beli? Branislava,Milo?evi? Nikolina
Veterinarski Glasnik , 2010, DOI: 10.2298/vetgl1006375p
Abstract: The microscopic examination of stained smears of peripheral blood is of vital significance in the speedy diagnostics of infectious and parasitic diseases, in particular during the stage of infection when the cause is present in the blood, or blood cells. It is sometimes possible to make a definitive diagnosis of an infectious or parasitic disease following an examination of a stained smear of the peripheral blood. Since microscopic examinations of a peripheral blood smear are applied increasingly rarely in clinical practice, due to the development of other methods for the diagnostics of infectious and parasitic diseases in dogs, as well as the lack of knowledge of the morphology of the numerous causes that can be present in the blood, we carried out an investigation into the presence and spread of infections whose causes can be present in dog blood. The investigations covered 100 dogs from which peripheral blood smears were taken and then stained with a Giemsa solution according to the standard protocol and examined under a microscope with an immersion lens. The examination of peripheral blood smears stained according to Giemsa resulted in the identification of the presence of an Ehrlichia spp. morula in a neutrophil granulocyte in one dog. The presence of hemotropic mycoplasmas was established in erythrocytes of eleven dogs, while the presence of the protozoa Babesia canis in erythrocytes was identified in five dogs included in the investigations. A microscopic examination of dog peripheral blood smears stained according to Giemsa was shown as a speedy, practical, simple, and inexpensive method for making a definitive etiological diagnosis of these infections, and it should be included regularly in standard protocols for the diagnostics of infectious and parasitic diseases.
Nasal septum extramedullary plasmacytoma
BeliBranislav,Mitrovi? Slobodanka,Arsenijevi? Sne?ana,Erdevi?ki Ljiljana
Vojnosanitetski Pregled , 2013, DOI: 10.2298/vsp1302221b
Abstract: Introduction. Plasmacytomas are malignant tumors characterized by abnormal monoclonal proliferation of plasma cells. They originate in either bone - solitary osseous plasmacytoma, or in soft tissue - extramedullary plasmacytoma (EMP). EMP represents less than 1% of all head and neck malignancies. Case report. We presented a case of EMP of the nasal septum in a 44-year-old male who had progressive difficulty in breathing through the nose and frequent heavy epistaxis on the right side. Nasal endoscopy showed dark red, soft, polypoid tumor in the last third of the right nasal cavity arising from the nasal septum. The biopsy showed that it was plasmacytoma. Bence Jones protein in the urine, serum electrophoresis, bone marrow biopsy, skeletal survey and other screening tests failed to detect multiple myeloma. This confirmed the diagnosis of EMP. The mass was completely removed via an endoscopic approach, and then, 4 week later, radiotherapy was conducted with a radiation dose of 50 Gray. No recurrence was noted in a 3-year follow- up period. Conclusion. EMP of the nasal cavity, being rare and having long natural history, represents a diagnostic and therapeutic challenge for any ear, nose and throat surgeon. Depending on the resectability of the lesion, a combined therapy is the accepted treatment.
Subdural empyema, retropharyngeal and parapharyngeal space abscess: Unusual complications of chronic otitis media
Erdevi?ki Ljiljana,BeliBranislav,Arsenijevi? Sne?ana,Milojevi? Ivan
Vojnosanitetski Pregled , 2012, DOI: 10.2298/vsp1205449e
Abstract: Introduction. Otitic complications arise from expansion of the middle ear infection. Subdural empyema is a rare otitic complication, and both retropharyngeal and parapharyngeal abscesses have been described in just a few cases. Case report. A 30-year-old male was, admitted as an emergency case because of breathing difficulties, secretion from the ear, and fever. Clinical examination had shown a purulent, fetid secretion from the ear, swelling on the roof of epipharynx, left tonsil pushed medialy, immobile epiglottis, reduced breathing space. Computed tomography revealed thick hypodense content filling cavity, mastoid entering the posterior cranial fossa, descending down throw the parapharyngeal space to the mesopharynx. On the roof and posterior wall of the epipharynx hypodense collection was also present. Tracheotomy was conducted, and incision of the parapharyngeal and retropharyngeal abscess and radical tympanomastoidectomy were performed. The patient’s state deteriorated on the tenth postoperative day with hemiparesis and consciousness disorder. Magnetic resonance imaging was done. It showed subdural empyema of the left frontoparietal region and next to the falx, so craniotomy and abscess drainage were conducted. Conclusion. Parapharyngeal, retropharyngeal abscess and subdural empyema are rare otitic complications. Adequate antibiotic therapy and radical surgical treatment make possible an outcome with survival.
Variational approach to multidimensional solitons in highly nonlocal nonlinear media
Branislav N. Aleksi?,Najdan B. Aleksi?,Milan S. Petrovi?,Aleksandra I. Strini?,Milivoj R. Beli
Physics , 2014, DOI: 10.1364/OE.22.031842
Abstract: We apply the variational approach to solitons in highly nonlocal nonlinear media in $D=1,2,3$ dimensions. We compare results obtained by the variational approach with those obtained in the accessible soliton approximation, by considering the same system of equations in the same spatial region and under the same boundary conditions. To assess the accuracy of these approximations, we also compare them with the numerical solution of the equations. We discover that the variational highly nonlocal approximation provides more accurate results and as such is more appropriate solution than the accessible soliton approximation.
Variational approach vs accessible soliton approximation in nonlocal nonlinear media
Branislav N. Aleksi?,Najdan B. Aleksi?,Milan S. Petrovi?,Aleksandra I. Strini?,Milivoj R. Beli
Physics , 2013, DOI: 10.1088/0031-8949/2014/T162/014003
Abstract: We discuss differences between the variational approach to solitons and the accessible soliton approximaion in a highly nonlocal nonlinear medium. We compare results of both approximations by considering the same system of equations in the same spatial region, under the same boundary conditions. We also compare these approximations with the numerical solution of the equations. We find that the variational highly nonlocal approximation provides more accurate results and as such is more appropriate solution than the accessible soliton approximation. The accessible soliton model offers a radical simplification in the treatment of highly nonlocal nonlinear media, with easy comprehension and convenient parallels to quantum harmonic oscillator, however with a hefty price tag: a systematic numerical discrepancy of up to 100% with the numerical results.
Editorial
Euzebio Beli
Engenharia Ambiental : Pesquisa e Tecnologia , 2010,
Abstract:
Editorial (English)
Euzebio Beli
Engenharia Ambiental : Pesquisa e Tecnologia , 2011,
Abstract:
Editorial
Euzebio Beli
Engenharia Ambiental : Pesquisa e Tecnologia , 2011,
Abstract:
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