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Search Results: 1 - 10 of 335255 matches for " F. ?ak?r "
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Research on weed species for phytoremediation of boron polluted soil
M Ayd n, F ak r
African Journal of Biotechnology , 2009,
Abstract: No
The Impact of Communication Climate and Job Satisfaction in Employees’ External Prestige Perceptions( rgütsel leti im klimi ve Tatmininin al anlar n Kurumsal tibar Alg lar üzerindeki Etkileri)
R?fat KAMA?AK,Füsun BULUTLAR
Y?netim ve Ekonomi , 2008,
Abstract: The importance of perceived external prestige (PEP) has gained importance recently because of its significant effects on organizational outcomes. The primary aim of this study was to explore the antecedents of perceived external prestige. The important constructs which were included in the two different models were communication climate and job satisfaction. To explore their effects on PEP, data were collected from a sample of 375 employees. Three stage multiple regression method was used to test the mediating effect of job satisfaction and hierarchical regression analysis was conducted to test the moderating effect of communication. The results indicated that job satisfaction mediated the relationship between communication climate and PEP, but communication climate did not have a moderating effect.
Orbits of Six Late-type Active-Chromosphere Binaries
R. F. Griffin,N. Filiz Ak
Physics , 2010, DOI: 10.1007/s10509-010-0381-3
Abstract: We present spectroscopic orbits for the active stars HD 82159 (GS Leo), HD 89959, BD +39 2587 (a visual companion to HD 112733), HD 138157 (OX Ser), HD 143705, and HD 160934. This paper is a sequel to one published in this journal in 2006, with similar avowed intention, by Galvez et al.. They showed only graphs, and gave no data, and no orbital elements apart from the periods (only two of which were correct) and in some cases the eccentricities. Here we provide full information and reliable orbital elements for all the stars apart from HD 160934, which has not completed a cycle since it was first observed for radial velocity.
Analysis of Patient Forms of Prehospital Emergency Medical Services
Zeynep G?kcan ?akr,At?f Bayramo?lu,Ayhan Ak?z,?ule Esen Türky?lmaz
Journal of Academic Emergency Medicine , 2012,
Abstract: Objective: In this study, a definition of the current status has been aimed at by means of examining the quantity of forms issued for the patients brought to Atatürk University Medical Faculty Emergency Department with the 112 Emergency mobile Service (EMS). Material and Methods: The forms of 1448 patients transferred to our emergency service from the Erzurum Centrum, Erzurum district and surrounding provinces between the dates of 01.02.2005 and 30.06.2007 were examined. In the data analysis; Statistical Package for Social Sciences for Windows Version 11.0 package program was used.Results: Fourty-seven units of 1448 forms (3.25%) could not been examined as they could not be read at all or were completely empty. We determined that the demographic information belonging to patients was not available at the rate of between 44.2% and 95.9%, personal information between 38.5% and 69.1%, medical information between 13.4% and 98.4%, transfer information between 29.3% and 72.1% and delivery registrations between 3.1% and 98.6%.Conclusion: For an effective registration system, it is appropriate to switch to the usage of electronic identity cards in which all identity information and health records can be kept.. It is necessary to make its use obligatory for all hospitals and 112 EMS in order for the common database to be used.
Winter Universiade 2011 - Erzurum Health Organisation, What Happened?
At?f Bayramo?lu,Ayhan Ak?z,Zeynep ?akr,?ahin Aslan
Journal of Academic Emergency Medicine , 2011,
Abstract: Objective: The twenty-fifth Universiade Winter games were held between the 27th January and 6th February 2011 in Erzurum-Turkey, with the highest participation in the Wnter games’ history. In analysing the games, the aim is to produce an analysis which will assist in lighting the way for health services oriented towards this kind of organization.Materials and Methods: The records kept for the patients have been examined retrospectively. The statistics studies have been carried out by using spss 17.0.Results: On-the-spot health service has been given to approximately 1000 cases in competitions and exercises during the games. Also, 131 cases have been sent to hospital by ambulance. Health service has been given to 922 persons, 144 of whom were trauma, in the games village health center. Diagnoses of acute respiratory tract infections have been established in 498 cases of medical treatments. Thirty cases were transported by ambulance. 355 cases, 55 of whom were trauma, applied to the hospital. 2005 cases of medical treatments were cases related to acute respiratory tract infections. In the hospital treatments, 1 ex entry, 3 intensive care hospitalizations, and 17 service hospitalizations have been achieved. Conclusion: During the games, health services were provided by a team of 320 personnel, including 85 doctors and 15 mountaineering rescue crew. In all cases, the most encountered diagnosis is acute respiratory tract infection, the second is trauma. The health organization has carried out the duties without any problems and with success, as planned.
Enhancement of anaerobic digestion of Nile perch fish processing wastewater
R Gumisiriza, AM Mshandete, MST Rubindamayugi, F Kansiime, AK Kivaisi
African Journal of Biotechnology , 2009,
Abstract: In East Africa, Nile perch processing into fish fillets for export generates large proportions of both solid and liquid fish wastes. These wastes are improperly utilized and/or disposed off untreated leading to environmental pollution problems. On the other hand, Nile perch fish processing wastewater (FPW) contains high concentrations of lipids and proteins, which have high methane yield potential. However, anaerobic digestion (AD) of FPW for methane production is limited due to process inhibition by lipids and ammonia intoxication. To overcome these limitations, the effects of co-digestion, physical and biological pretreatments on extent of methane yield were investigated. At a loading ratio of 1:1 (inoculum to substrate) with raw FPW, a methane yield of 0.56 m3/kgVS was obtained. Co-digestion of the residue with 10% gVS of brewery wastewater enhanced methane yield to a highest increment of 66%. Long chain fatty acids (LCFA) removal prior AD enhanced methane yield to an increment of 52% at LCFA removal of 8%. Pretreatment of FPW with aerobic microbial cultures isolated from a fish waste stabilization pond enhanced methane yield to an increment of 60% after 18 h, 68% after 15 h and 76.0% after 12 h of incubation, respectively, for strains CBR 11, BR 10 and a mixture of the two (CBR 11 + BR 10). The present study reports for the first time improvement of AD of Nile perch FPW by co-digestion, physical and biological pre-treatment methods and could be used as a basis for designing a pilot scale process.
A New Step Size Control Technique for Blind and Non-Blind Equalization Algorithms
E. Tu?cu,F. ?akr,A. Ozen
Radioengineering , 2013,
Abstract: A new variable step size (VSS) control technique employing cross correlation between channel output and error signal has been proposed as a solution to the problem of slow convergence of blind and non-blind equalization algorithms. The new method resolves the conflict between the convergence rate and low steady state error of the fixed step-size conventional blind and non-blind equalization algorithms, such as Constant Modulus Algorithm (CMA) and Least Mean Squares (LMS) algorithm. Computer simulations have been performed to verify the performance of the proposed method in frequency selective Rayleigh fading channels. The proposed technique has been compared with the popular non-blind equalizers, LMS and Recursive Least Squares (RLS) algorithms, and blind equalizers, the conventional CMA, Zhao’s VSS-CMA and Demir’s VSS-CMA as benchmarks. The obtained simulation results have demonstrated that the proposed VSS-CMA and VSS-LMS algorithms have considerably better performance than the conventional CMA, Zhao’s VSS-CMA and Demir’s VSS-CMA blind equalization algorithms, and the conventional LMS non-blind equalization algorithm.
Naturaleza del razonamiento algebraico elemental
Godino, Juan D.;Castro, Walter F.;Aké, Lilia P.;Wilhelmi, Miguel R.;
Bolema: Boletim de Educa??o Matemática , 2012, DOI: 10.1590/S0103-636X2012000200005
Abstract: the introduction of algebraic reasoning in primary education is a subject of interest for research and curricular innovation in mathematics education, which supposes an extended vision of the nature of school algebra. in this paper we propose a way to conceive of algebraic reasoning based on the types of mathematical objects and processes introduced in the onto-semiotic approach to mathematical knowledge. in particular, considering a mathematical practice as algebraic is based on the intervention of generalization and symbolization processes, along with other objects usually considered as algebraic, such as binary relations, operations, functions and structures. this way to conceive of elementary algebra is based on and compared to the characterizations given by other authors. we also propose a typology of algebraic configurations that allows defining degrees of algebrization of mathematical activity.
Challenges in diagnosis and management of Cryptococcal immune reconstitution inflammatory syndrome (IRIS) in resource limited settings
AK Musubire, BD Meya, H Mayanja-Kizza, R Lukande, LD Wiesner, F Bohjanen, RD Boulware
African Health Sciences , 2012,
Abstract: In many resource-limited settings, cryptococcal meningitis (CM) contributes up to 20% of all deaths with further complications due to Immune Reconstitution Inflammatory Syndrome (IRIS). We present a case report on a patient who developed CMIRIS and then subsequent CM-relapse with a fluconazole-resistant organism and then later CM-IRIS once again, manifesting as cystic cryptococcomas, hydrocephalus, and sterile CSF. In this case we, demonstrate that CM-IRIS and persistent low level cryptococcal infection are not mutually exclusive phenomena. The management of IRIS with corticosteroids may increase the risk of culture positive CM-relapse which may further increase the risk of recurrent IRIS and resulting complications including death. We also highlight the role of imaging and fluconazole resistance testing in patients with recurrent meningitis and the importance of CSF cultures in guiding treatment decisions.
Association of Infantile Osteopetrosis and Rickets: A Case Report
Yasemin Sancak,Deniz ?akr,F. Deniz Aygün,Erdal Eren
Güncel Pediatri , 2012,
Abstract: Introduction: Osteopetrosis is a rare disorder of osteoclast function resulting in failure of resorption and increased bone density. Rickets is a paradoxical complication of osteopetrosis. In this article, we report a 3-month old infant, examined because of right inguinal swelling and hepatosplenomegaly who was diagnosed with osteopetrosis and rickets, a rare association. Case: A 3-month old infant was referred to Pediatric Infectious Disease department to rule out congenital CMV infection because of positivity of CMV IgM and CMV Ig G detected during examination for right inguinal swelling and hepatosplenomegaly. Antenatal history of the baby was normal. On physical examination, he did not have head control and eye contact, he had bilateral horizontal nystagmus, a 5-cm hepatomegaly, a 6-cm splenomegaly, and right inguinal hernia. The laboratory evaluation revealed serum Ca of 9.3 mg/dl (8.4-10.2), P of 2.2 mg/dl (2.3-4.7), and ALP of 1139 U/L (40-150). Hyperdense appearence was seen in chest x-ray, and whole radiological skeletal survey revealed diffusely increased bone density, ‘space alien’ sign in craniography, sandwich sign in vertebrae, and enlargement of costocondral junction on chest radiogram. With laboratory and radiologic findings, the patient was diagnosed as osteopetrosis associated with rickets.Conclusion: Association of osteopetrosis and ricets is rare and paradoxical. Early diagnosis and treatment improves patients’ life expectancy. Therefore detection and traetment of rickets before bone marrow transplantation increases success of treatment.(Jo-ur-nal of Cur-rent Pe-di-at-rics 2012; 10: 40-3)
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