50 research outputs found
Two cases of brucellosis presented with hepatic and muskulatesklatal system involvement
No full textBrucellosis is a multisysternic infection that is endemic in some parts of the world. Gastrointestinal system involvement is common and the liver is the most frequently affected organ in this system. Musculoskeletal involvement is also common in this disease. In this article, we present two cases of brucellosis presenting with acute cholangitis, and long-term migrating arthritis
Susceptibility of escherichia coli strains isolated from urine cultures to some commonly used antibacterial agents
No full textObjectives: The present study was designed to determine the bacteria causing urinary tract infections (UTI) in our hospital and their susceptibility to various antibiotics. Study Design: Susceptibility of 259 uropathogen Escherichia Coli (E.Coli) isolates from urine samples of patients treated in the wards and intensive care units or in the outpatient clinics of our hospital between March 2004 and February 2005, to ampicillin, amoxycillin-clavulanate, gentamicin, ceftriaxone, ofloxacin, ciprofloxacin, co-trimoxazole, and naliclixic acid, the most commonly used antibiotics in UTI, Were evaluated. Among the isolated strains, 63 were from nosocomial and 196 were from community acquired UTI. Identification and susceptibility of strains were determined by an automatized VITEK-1 panel (Biomerieux, France). Results: Comparison of antibiotic susceptibility rates between nosocomial and community-acquired UTI revealed the following results: ampicillin 63-32%, amoxycillin-clavulanate 78-58%, gentamicin 89-83%, ceftriaxone 94-89%, ofloxacin 82-59%, ciprofloxacin 81-54%, cotrimoxazole 71-47%, naliclixic acid 86-64%, nosocomial and community-acquired UTI, respectively. Conclusion: In our opinion, for our region, ciprofloxacin would be the appropriate option for ampiric therapy in patients with probable community-acquired UTI and ampiric parenteral treatment with ceftriaxone would be the appropriate first option in patients with probable nosocomial UTI
Biplots of fuzzy coded data
No full textWOS: 000295444200004A biplot, which is the multivariate generalization of the two-variable scatterplot, can be used to visualize the results of many multivariate techniques, especially those that are based on the singular value decomposition. We consider data sets consisting of continuous-scale measurements, their fuzzy coding and the biplots that visualize them, using a fuzzy version of multiple correspondence analysis. Of special interest is the way quality of fit of the biplot is measured, since it is well known that regular (i.e., crisp) multiple correspondence analysis seriously under-estimates this measure. We show how the results of fuzzy multiple correspondence analysis can be defuzzified to obtain estimated values of the original data, and prove that this implies an orthogonal decomposition of variance. This permits a measure-of-fit to be calculated in the familiar form of a percentage of explained variance, which is directly comparable to the corresponding fit measure used in principal component analysis of the original data. The approach is motivated initially by its application to a simulated data set, showing how the fuzzy approach can lead to diagnosing nonlinear relationships, and finally it is applied to a real set of meteorological dataBBVA Foundation; Ministry of Science and Innovation [MTM2008-00642, MTM2009-09063]The second author thanks the BBVA Foundation for financial support in this research, as well as the Ministry of Science and Innovation Grants MTM2008-00642 and MTM2009-09063. The reports of two referees on the first version of this paper led to significant improvements and are hereby acknowledged with thanks
A new approach to determine insulation material and thickness from a life-cycle perspective
No full text#nofulltext# --- Çetintaş, Kemal Ferit (Arel Author), Yılmaz, Zerrin (Arel Author)Energy-efficient retrofitting of buildings is an important topic for the future world. Adding thermal insulation to the building envelope is the most common and well-known measure, but existing strategies for energy-efficient retrofits do not consider the life-cycle energy consumption and carbon dioxide (CO2) emissions of the insulation materials. This paper introduces a new approach for selecting the optimum insulation material and thickness based on life-cycle energy consumption and carbon dioxide emissions. The approach was applied to a multi-storey residential building located in I. zmir, Turkey, which has a Mediterranean climate, and the results are compared with the same building in Erzurum, Turkey, which has a cold climate. The comparison reveals the effect of thermal insulation on energy consumption and carbon dioxide emissions. The results show that increasing thermal insulation thickness provides less energy efficiency in the Mediterranean climate than in the cold climate. In addition, if the thickness is not optimised according to the insulation material, the life-cycle carbon dioxide emissions and energy consumption may increase contrary to expectations. Extruded polystyrene insulation with 3 cm thickness for the Mediterranean climate and rock wool insulation with 9 cm thickness in cold climate have the optimum life-cycle energy and carbon dioxide emission performance for the case-study building
Risk factors and clinical characteristics of spondylodiscitis: a comparative study
No full textPurpose Spondylodiscitis is a serious infection of the intervertebral discs and vertebrae, with rising incidence. This study provides an updated evaluation by analyzing causative microorganisms in tuberculous (TS), brucellar (BS), and pyogenic spondylodiscitis (PS). Our findings offer contemporary data to enhance understanding and management of spondylodiscitis. Methods This retrospective study included 109 adult patients diagnosed with spondylodiscitis between 2011 and 2021 at a tertiary research center. Patients were categorized into three groups based on the causative pathogen. Demographic data, clinical presentations, laboratory findings, radiological imaging, and microbiological results were analyzed. Results Among 109 patients, 59 (54.1%) had PS, 33 (32%) BS, and 17 (15.5%) TS. The cohort included 65 males (59.6%) and 44 females (40.4%), with a mean age of 57.6 +/- 13.8 years. Back pain was the most common symptom (85.3%). Night sweats were more prevalent in BS (p < 0.001), while weight loss was less frequent in PS (p < 0.05). Diabetes was more common in PS (p < 0.001). PS cases had higher inflammatory markers (p < 0.001). Blood culture positivity was 53.6% in BS and 53.8% in PS. Surgery with tissue sampling was performed in 62 cases (56.9%). S. aureus was the most frequent pathogen, followed by Brucella spp. Conclusion Spondylodiscitis requires a multidisciplinary diagnostic approach due to its variable clinical presentations. PS is characterized by elevated inflammatory markers and concurrent infectious foci, BS by endemic risk factors and systemic symptoms, and TS by prolonged symptoms and thoracic involvement
Valorization of banana peel waste via in-situ catalytic pyrolysis using Al-Modified SBA-15
No full textÖzbay, Nurgül (Bilecik, Author)
Yargıç, Adife Şeyda (Bilecik, Author)
Şahin, Rahmiye Zerrin Yarbay (Bilecik, Author)
Yaman, Elif (Bilecik, Author)The present study is aimed to investigate thermal and catalytic pyrolysis of banana peel. In the first part of the study, banana peel was pyrolyzed by varying the temperatures between 400 and 700 degrees C. It was seen that higher temperature caused in lower bio-oil and bio-char yields but higher gas yields and optimum temperature was determined as 550 degrees C. In the second part, the mesoporous material Al-SBA-15 with the typical hexagonal arrangement of SBA-15 verified via XRD possesses Lewis and Bronsted acid sites (NI-13-TPD), large surface area and wide pore diameter (N-2 physisorption) was able to catalyzing of banana peel biomass resulting in bio-oil yields of 18-28% with varying catalyst/biomass ratios (0, 5, 10, 15, 20 wt%). The highest bio-oil yield from the catalytic pyrolysis was 18.64% with 15 wt% catalyst/biomass ratios. The composition and physical properties of the bio-oils were reported that the catalyst increased oxygen removal from the bio-oil and also developed the production of desirable products like phenolics and aromatic compounds. The results confirmed the catalytic pyrolysis of banana peel was well related to the textural properties of catalysts. (C) 2019 Elsevier Ltd. All rights reserved.Bilecik Şeyh Edebali Üniversitesi Bilimsel Araştırma Projesi - BAP - 2014-01.BİL.03-01.
Bilecik Seyh Edebali University Scientific Research Project - BAP - 2014-01.BİL.03-0
Candida glabrata : Etiologic agent of soft tissue abscess in a diabetic patient
No full text[Abstract Not Available
STAPHYLOCOCCUS AUREUS HEPATIC ABSCESS ASSOCIATED WITH CERVICAL LYMPHADENITIS
No full textPyogenic liver abscesses usually develop secondary to biliary tract and intraabdominal infections and members of the Enterobacteriaceae family are usually implicated as the etiologic agents. In this report a case of hepatic abscess devoloped secondary to cervical lymphadenitis caused by Staphylococcus aureus, was presented. Twenty-one years old male patient was admitted to the hospital with complaints of fever, swelling and pain at the right side of the neck and difficulty in swallowing. Physical examination revealed painful submandibular lymphadenopathy with hyperemia. Upon demonstration of cystic lymphadenopathy by magnetic resonance imaging of the neck, the mass was aspirated. Gram-positive cocci with abundant leucocytes were detected in Gram stained smears of the aspiration material and methicillin-susceptible S.aureus (MSSA) was identified in the culture. Treatment with ampicillin/sulbactam (4 x 1.5 g/day) was initiated. However, since patient still had fever and abdominal pain, nausea and vomitting were also added to his complaints, abdominal ultrasonography and computerized tomography (CT) were done and abscesses were demonstrated in liver. The abscesses were drained under CT guidance and the fever of the patient resolved. Treatment with ampicillin/sulbactam was continued for 6 weeks. Although it was considered that the hematogenous spread of MSSA that led to cervical lymphadenitis caused the hepatic abscesses, the agent was neither isolated from the blood culture nor from the hepatic abscess material. It should always be taken into consideration that liver abscesses might accompany distant infections and antibiotic therapy alone might not be sufficient for the complete resolution of such infections
