26 research outputs found

    Revitalization of Ottoman Industrial Heritage in Kemeraltı and Izmir History Project

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    In this study, conservation and renovation proposals for Hamdi Dalan Soap Factory, where industrial production was carried out at various times especially after the Industrial Revolution, have been developed within the scope of integrating it with its built environment, settlement identity and public/social life. The building is located in Izmir Historical Kemeraltı zone and due to the technological developments of the later period and production oriented economic policies, has lost its function and has been abandoned. This paper aims to discuss a process of participation, implemented and intended works whose pros and cons will be determined. To achieve this, Izmir Metropolitan Municipality has carried out a multidisciplinary "Izmir History Project".© 2016. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.Keywords: Revitalization; Izmir History Project; Hamdi Dalan Soap Factory; TARKE

    Adsorption of reactive blue 49 onto cross-linked chitosan-based composites containing waste mussel shell and waste active sludge char

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    Cross-linked chitosan/waste mussel shell (C/WMS) and chitosan/waste mussel shell/waste active sludge char (C/WMS/WASC) composites were prepared from waste mussel shell, waste active sludge (WAS), and chitosan, and cross-linked with glutaraldehyde. The quantities of chitosan, WMS, and WASC used for the C/WMS and C/WMS/WASC composites were 1:1 and 1:0.5:0.5, respectively. The two adsorbents were characterized for their quality by a scanning electron microscope (SEM), an energy-dispersive X-ray spectroscopy (EDX), and a Brunauer, Emmett and Teller (BET) analyzer. The effects of contact time (0-1,620 mins), pH (1-5), adsorbent dosage (0.01-0.1 g/50 ml), initial dye concentration (20-100 mg/L), and temperature (25-45 degrees C) on Reactive Blue 49 (RB49) adsorption onto C/WMS and C/WMS/WASC composites were investigated. The maximum RB49 adsorption capacity of C/WMS and C/WMS/WASC composites was 54.7 and 38.8 mg/g, respectively. The experimental data were analyzed by kinetic and isotherm models. The Freundlich isotherm was a good fit for the experimental data of RB49 adsorption on C/WMS and C/WMS/WASC composites, and the adsorption kinetics for both adsorbents were the pseudo-second-order rate equation. All results showed the preparative adsorbents can be used as effective adsorbents for the treatment of waste water contaminated with RB49 since they are low cost and eco-friendly for the environment

    Electrochemical impedimetric detection of kanamycin using molecular imprinting for food safety

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    In this work, molecularly imprinted kanamycin (KAN) electrodes were prepared using electrochemical polymerization of pyrrole (Py). First, a glassy carbon electrode was coated with an optimized volume of graphene oxide (GC/GO) to provide a high surface area electrode. Py is then polymerized on GC/GO electrode using cyclic voltammetry in the presence of KAN following by KAN removal using HCl (GC/GO-pPy-KAN*). Electrode preparation steps were also optimized using microscopic, spectroscopic, and electrochemical methods. Finally, the analytical performance of the prepared GC/GO-pPy-KAN* electrode was investigated for the determination of KAN. The limit of detection and the detection range was calculated as 5 nM and 5 nM–1 µM, respectively. The precision, accuracy, and interference studies showed good precision and relative error with minimum interference for the chosen substances. Moreover, real sample analysis was also performed using 4 different milk samples with good recovery values. Consequently, a novel, simple, and sensitive sensor was developed using an easy and low-cost fabrication method for the detection of KAN in food samples such as milk

    The Effect of Hypothermia on Splanchnic Flows and Lung in a Two-Hit Hemorrhagic Shock Model

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    WOS: 000276650000019PubMed: 19541326Background. To evaluate the effect of hypothermia on bacterial translocation, splanchnic vascular flow, lung tissue weight, and levels of malondialdehyde (MDA) and nitric oxide (NO) in a two-hit model of hemorrhagic shock. Methods. Thirty rats were randomly allocated into three groups of 10 rats each. In the control group (group C), rats were treated without hemorrhage, and normothermia (37 degrees C) was maintained. In the mild hypothermia group (group MH), rats were subjected to volume-controlled hemorrhage (2 mL/100g) and a rectal temperature of 34 degrees C was maintained. In the normothermic group (group NT), rats were treated as in group MH, except for hypothermia. Seventy-two hours after hemorrhagic shock (first insult), Pseudomonas aeuruginosa was administered intratracheally as a second insult. Finally, mesenteric vascular flow patterns were recorded. Bacterial translocation was studied from tissue samples of spleen, liver, and mesenteric lymph nodes. Blood samples were obtained to evaluate the possible presence of bacteria in the bloodstream. Lung tissue weight ratio, MDA, and NO levels in lung tissue were assessed. Results. Renal, mesenteric, and portal venous flow rates were found to be lower in groups Mill and NT in comparison with group C. Blood flow profiles were lower in group NT than in group MH (P < 0.05). Bacterial translocation was not observed in group C, and it was detected more often in group NT than in group MH. Lung weight ratio was found to be higher in group NT compared with groups MH and C. Although it did not reach the level of statistical significance, MDA level in the control group was lower than that in the NT group (P = 0.085). Conclusion. Hypothermia corrected mesenteric blood flow and decreased the occurrence of bacterial translocation in the two-hit model of hemorrhagic shock and tracheal inoculaton of P. aeruginosa (C) 2010 Elsevier Inc. All rights reserved

    Rapid and Sensitive Colorimetric ELISA Using Silver Nanoparticles, Microwaves and Split Ring Resonator Structures

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    We report a new approach to colorimetric Enzyme-Linked Immunosorbent Assay (ELISA) that reduces the total assay time to < 2 min and the lower-detection-limit by 100-fold based on absorbance readout. The new approach combines the use of silver nanoparticles, microwaves and split ring resonators (SRR). The SRR structure is comprised of a square frame of copper thin film (30 µm thick, 1 mm wide, overall length of ~9.4 mm on each side) with a single split on one side, which was deposited onto a circuit board (2×2 cm(2)). A single micro-cuvette (10 µl volume capacity) was placed in the split of the SRR structures. Theoretical simulations predict that electric fields are focused in and above the micro-cuvette without the accumulation of electrical charge that breaks down the copper film. Subsequently, the walls and the bottom of the micro-cuvette were coated with silver nanoparticles using a modified Tollen’s reaction scheme. The silver nanoparticles served as a mediator for the creation of thermal gradient between the bioassay medium and the silver surface, where the bioassay is constructed. Upon exposure to low power microwave heating, the bioassay medium in the micro-cuvette was rapidly and uniformly heated by the focused electric fields. In addition, the creation of thermal gradient resulted in the rapid assembly of the proteins on the surface of silver nanoparticles without denaturing the proteins. The proof-of-principle of the new approach to ELISA was demonstrated for the detection of a model protein (biotinylated-bovine serum albumin, b-BSA). In this regard, the detection of b-BSA with bulk concentrations (1 µM to 1 pM) was carried out on commercially available 96-well high throughput screening (HTS) plates and silver nanoparticle-deposited SRR structures at room temperature and with microwave heating, respectively. While the room temperature bioassay (without microwave heating) took 70 min to complete, the identical bioassay took < 2 min to complete using the SRR structures (with microwave heating). A lower detection limit of 0.01 nM for b-BSA (100-fold lower than room temperature ELISA) was observed using the SRR structures

    Effect of Modified Global Risk Classification on Prognosis at Patients Undergoing Bypass Surgery and Percutaneous Coronary Intervention with Multi-vessel Disease

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    WOS: 000436145200010Objective: The aim of this study was to compare mortality and myocardial infarction in patients with multi-vessel disease using "Modified Global Risk Classification" (mGRC). Methods: We divided 579 patients into low, intermediate risk with a high EuroSCORE (IE), intermediate risk with a high SYNTAX score (IS), and high Modified Global Risk groups. Patients were evaluated for death, myocardial infarction, cerebrovascular events, need for re intervention, and a primary endpoint, which denotes the occurrence of any one of the four events. Results: Comparing the bypass surgery and percutaneous coronary intervention groups using mGRC showed significantly better prognostic results in the bypass surgery patients for the rate of the occurrence of the myocardial infarction for the IS group (p=0.047). In terms of the primary endpoint, the EuroSCORE, SYNTAX score, and Global Risk Classification (GRC) were found to be independent risk factors in logistic regression analysis. The ability of GRC to discriminate for the 1-year mortality was found to be better than that of the EuroSCORE and SYNTAX score. Conclusion: With the evaluation of the EuroSCORE and SYNTAX score together, the modified GRC, which includes both anatomical and clinical risk factors, provides an additional benefit for predicting the prognosis and decision of treatment in patients with multi-vessel disease

    Ultrafast and sensitive bioassay using split ring resonator structures and microwave heating

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    In this paper, we have reported that split ring resonators (SRRs) structures can be used for bioassay applications in order to further improve the assay time and sensitivity. The proof-of-principle demonstration of the ultrafast bioassays was accomplished by using a model biotin-avidin bioassay. While the identical room temperature bioassay (without microwave heating) took 70 min to complete, the identical bioassay took less than 2 min to complete by using SRR structures (with microwave heating). A lower detection limit of 0.01 nM for biotinylated-bovine serum albumin (100-fold lower than the room temperature bioassay) was observed by using SRR structures

    Treatment of SARS-CoV-2 pneumonia with favipiravir: early results from the Ege University cohort, Turkey

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    Background/aim: The aim of this descriptive article is to share the experience in Ege University, Turkey with favipiravir in the treatment of severe SARS-CoV-2 pneumonia. Materials and methods: This retrospective descriptive study included patients diagnosed with COVID-19 who presented with or developed severe pneumonia. Results: Forty patients who completed a full course (at least 5 days) of favipiravir were included in the study. At baseline, 30 (75%) patients required treatment for respiratory distress. Thirty-three patients (82.5%) were discharged from the hospital with full recovery, 6 patients (15%) died and 1 case (2.5%) was still at the intensive care unit (ICU) when this paper was written. Conclusion: This study provides relevant information for the treatment of COVID-19, suggesting that favipiravir was associated with significant clinical and laboratory improvements in the majority of the patients, is a safe drug with no serious side effects and would merit further investigation

    Effect of modified global risk score on prognosis at patients undergoing bypass surgery and percutaneous coronary intervention with multi-vessel disease

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    Congress of the European-Society-of-Cardiology (ESC) -- AUG 31-SEP 04, 2013 -- Amsterdam, NETHERLANDSWOS: 000327744602320…European Soc Cardio
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