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Search Results: 1 - 10 of 17 matches for " Nermina Zaimovic-Uzunovic "
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Rapid prototyping for sling design optimization
Nermina Zaimovic-Uzunovic,Samir Lemes,Damir Curic,Alan Topcic
Computer Science , 2014,
Abstract: This paper deals with combination of two modern engineering methods in order to optimise the shape of a representative casting product. The product being analysed is a sling, which is used to attach pulling rope in timber transportation. The first step was 3D modelling and static stress/strain analysis using CAD/CAE software NX4. The slinger shape optimization was performed using Traction method, by means of software Optishape-TS. To define constraints for shape optimization, FEA software FEMAP was used. The mould pattern with optimized 3D shape was then prepared using Fused Deposition Modelling (FDM) Rapid prototyping method. The sling mass decreased by 20%, while signifficantly better stress distribution was achieved, with maximum stress 3.5 times less than initial value. The future researches should use 3D scanning technology in order to provide more accurate 3D model of initial part. Results of this research can be used by toolmakers in order to engage FEA/RP technology to design and manufacture lighter products with acceptable stress distribution.
Nonhomogeneous Boundary Value Problem for One-Dimensional Compressible Viscous Micropolar Fluid Model: Regularity of the Solution
Nermina Mujakovi?
Boundary Value Problems , 2009, DOI: 10.1155/2008/189748
Abstract: An initial-boundary value problem for 1D flow of a compressible viscous heat-conducting micropolar fluid is considered; the fluid is thermodynamically perfect and polytropic. Assuming that the initial data are H lder continuous on ]0,1[ and transforming the original problem into homogeneous one, we prove that the state function is H lder continuous on ]0,1[ —]0,T[, for each T>0. The proof is based on a global-in-time existence theorem obtained in the previous research paper and on a theory of parabolic equations.
Nonhomogeneous Boundary Value Problem for One-Dimensional Compressible Viscous Micropolar Fluid Model: Regularity of the Solution
Mujakovi? Nermina
Boundary Value Problems , 2008,
Abstract: An initial-boundary value problem for 1D flow of a compressible viscous heat-conducting micropolar fluid is considered; the fluid is thermodynamically perfect and polytropic. Assuming that the initial data are H lder continuous on and transforming the original problem into homogeneous one, we prove that the state function is H lder continuous on , for each . The proof is based on a global-in-time existence theorem obtained in the previous research paper and on a theory of parabolic equations.
One-Dimensional Compressible Viscous Micropolar Fluid Model: Stabilization of the Solution for the Cauchy Problem
Mujakovi? Nermina
Boundary Value Problems , 2010,
Abstract: We consider the Cauchy problem for nonstationary 1D flow of a compressible viscous and heat-conducting micropolar fluid, assuming that it is in the thermodynamical sense perfect and polytropic. This problem has a unique generalized solution on for each . Supposing that the initial functions are small perturbations of the constants we derive a priori estimates for the solution independent of , which we use in proving of the stabilization of the solution.
One-Dimensional Compressible Viscous Micropolar Fluid Model: Stabilization of the Solution for the Cauchy Problem
Nermina Mujaković
Boundary Value Problems , 2010, DOI: 10.1155/2010/796065
Abstract: We consider the Cauchy problem for nonstationary 1D flow of a compressible viscous and heat-conducting micropolar fluid, assuming that it is in the thermodynamical sense perfect and polytropic. This problem has a unique generalized solution on R×]0,T[ for each T>0. Supposing that the initial functions are small perturbations of the constants we derive a priori estimates for the solution independent of T, which we use in proving of the stabilization of the solution.
Community-acquired urinary tract infections by extended-spectrum beta-lactamase-producing Enterobacteriaceae in Zenica-Doboj Canton, Bosnia and Herzegovina
S. Uzunovic-Kamberovic,D. Saric,S. Sestic
Medicinski Glasnik , 2006,
Abstract: The aim of this study was to determine the incidence and antimicrobial resistance of ESBL-producing strains in the community-acquired urinary tract infections (CAUTIs), which is necessary for antimicrobial therapy selection. From January 2003 to September 2004, 4,112 consecutive, non-duplicate coliform isolates from CAUTIs were analyzed. Antimicrobial susceptibility testing to fifteen antimicrobials was performed by disc-diffusion method. Double-disk synergy test (DDST) with amoxicillin-clavulanat, cefotaxime, ceftazidime, ceftriaxone and aztreonam, and Etest strips with PM/PML (AB Biodisk) was performed according to CLSI recommendation in order to detect the ESBL producers. The overall incidence of ESBL producing strains was 2.6% (108/4112), it was significantly higher in males, 8.4% (79/936) than in females, 0.9% (29/3176). The highest prevalence of ESBL producers was noted in the oldest and youngest age group: 4.8% (52/106) and 2.6% (27/1045), respectively. An increase from 2.2% (52/2402) to 3.3% (56/1710), and a shift of ESBL producers toward the age group 0-6 years (1.6% and 3.8%, respectively) in this period was observed. The incidence of ESBL producing strains among isolated Klebsiella spp. were 7.8% (83/1060), E. coli 0.7% (18/2561), Citrobacter spp. 0.6% (1/156), Enterobacter spp. 7.7% (3/39) and Proteus spp. 1.0% ( 3/297). Among ESBL producing isolates Klebsiella spp. predominated, 76.9% (83/108), followed by E. coli 16.7% (18/108). ESBL producing strains showed significantly higher resistance rates to all tested antibiotics as compared to to non-ESBL-producers. The increase and shift toward the youngest age group of the ESBL producer incidences is of our concern. Further studies are required to detect ESBL types in terms of highly different geographical dissemination of these isolates.
Serum levels of interleukin-1 (IL-1α, IL-1β) in patients with alopecia areata
Emina Kasumagi?-Halilovic,Nermina Ovcina-Kurtovic
Our Dermatology Online , 2012,
Abstract: Introduction: Alopecia areata (AA) is disease characterized by focally, nonscarring hair loss on the scalp or other parts of the body. It affects 1-2% population of both genders and occurs at all age groups. The etiology is unknown, although most evidence supports the hypothesis that AA is a T-cell-mediated autoimmune disease of the hair follicle and that cytokines play an important role.Objective: The aim of our study was to evaluate serum concentrations of IL-1α and IL-1β in patients with AA and healthy subjects and also to asses a possible association between these cytokines and duration of the disease.Methods: Forty six patients with AA and 20 healthy controls were enrolled in the study. Serum concentrations of IL-1α and IL-1β were measured using enzyme-linked immunoassay techniques.Results: The serum level of IL-1α in patients with AA was significantly higher than that in the control group (4.34±0.86 pg/mL vs 3.66±0.35 pg/mL, respectively). IL-1β levels were greater in patients with AA than in controls (2.35±0.17 pg/mL vs 2.24±0.30, respectively) but the difference was not significant (p>0.05). No correlations were found between duration of disease and the serum levels of IL-1α and IL-1β.Conclusion: Our results have demonstrated the importance of determining IL-1a concentration in serum in patients with AA. This research could contribute to the interpretation of insufficiently well known views of the pathogenesis role and significance of IL-1α in AA.
Electrophysiological Evaluation of the Incidence of Martin-Gruber Anastomosis in Healthy Bosnian Population
Renata Hodzic, Nermina Piric, Mirsad Hodzic, Biljana Kojic
Macedonian Journal of Medical Sciences , 2011, DOI: 10.3889/MJMS.1857-5773.2011.0204
Abstract: Background: Martin-Gruber anastomosis (MGA) is the well known anostomosis that occur at the various levels between the median and ulnar nerves. This anastomosis involves axons leaving either the main trunk of median nerve or the anterior interosseous nerve, crossing through the forearm to join the ulnar nerve. Knowledge of the incidence of this anastomosis is necessary because MGA can cause confusion in the assesment of nerve injuries and compressive neuropathies. Aim: We aimed to assess the occurance and motor velocities of median to ulnar nerve communication (MGA) in the forearm of Bosnian population by electrophysiological examinations. Material and Methods: One hundred and twenty forearms from a series of 60 volunteers (25 females, 35 males, 23-78 years of age) were studied electrophysiologically using needle recording electrodes. Volunteers with peripheral neuropathies were excluded from the study. Needle recording electrodes were places on the thenar and hypothenar muscles. The median and ulnar nerves were stimulated supramaximally at the wrist and the elbow and compound muscle action potentials (CMAPs) were recorded as well as motor conduction velocities of median and ulnar nerves. Results: Martin-Gruber anastomosis was found in 27 of 120 forearms; it was bilateral in 7 and unilateral in 13, on the right side in nine and on the left side in four forearms. There were no significant sexual differences in the incidence. In MGA, when stimulating median nerve the respond of abductor digiti minimi was registered in 11, whereas the respond of opponens pollicis when stimulating ulnar nerve was registered in 18 subjects. This finding was statistically significant. Conclusion: With high incidence of MGA in Bosnian population, it is necessary to be aware of the existance of this anomaly, location and its possible presentation.
Application of conformal radiotherapy in treatment of non-Hodgkin head and neck lymphoma
Goran Maro?evi?,Hasan Osmi?,Semir Fazli?,Nermina Obrali?
Acta Medica Academica , 2012,
Abstract: No abstract available.
Group analysis training for Bosnia-Herzegovina mental health professionals in the aftermath of the 1992-1995 war
Mevludin Hasanovi?,Izet Pajevi?,Esmina Avdibegovi?,Nermina Kravi?
Acta Medica Academica , 2012,
Abstract: No abstract available.
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