Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed
Permanent URI for this communityhttps://hdl.handle.net/20.500.14719/1741
Browse
1698 results
Search Results
Publication Open Access Popular Culture: From Being an Enemy of the Feminist Movement to a Tool for Women's Liberation?(John Wiley and Sons Inc, 1999) Kirca, Süheyla; Kirca, Süheyla, Public Relations Department, Bahçeşehir Üniversitesi, Istanbul, Turkey[No abstract available]Publication Open Access House mice with metacentric chromosomes in the Middle East(Mendelian Society of Lund, 2000) Gündüz, Islam; Tez, Cosslkun; Searle, Jeremy B.; Gündüz, Islam, Department of Biology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Tez, Cosslkun, Department of Biology, Erciyes Üniversitesi, Kayseri, Turkey; Searle, Jeremy B., Department of Biology, University of York, York, United Kingdom[No abstract available]Publication Metadata only Fluorine determination in human and animal bones by particle-induced gamma-ray emission(Springer Verlag, 2001) Sastri, Chaturvedula S.; Lyengar, Venkatesh; Blondiaux, Gilbert B.; Tessier, Yves; Petri, Hermann; Hoffmann, Peter S.; Aras, Namik K.; Zaichick, Vladimir Ye; Ortner, Hugo Manfred; Sastri, Chaturvedula S., Fachbereich Material- und Geowissenschaften, Technische Universität Darmstadt, Darmstadt, Germany; Lyengar, Venkatesh, International Atomic Energy Agency, Vienna, Vienna, Austria; Blondiaux, Gilbert B., Centre de Recherches Internationales Sciences Po, Paris, France; Tessier, Yves, Centre de Recherches Internationales Sciences Po, Paris, France; Petri, Hermann, Forschungszentrum Jülich GmbH, Julich, Germany; Hoffmann, Peter S., Fachbereich Material- und Geowissenschaften, Technische Universität Darmstadt, Darmstadt, Germany; Aras, Namik K., Department of Chemistry, Middle East Technical University (METU), Ankara, Turkey, Bahçeşehir Üniversitesi, Istanbul, Turkey; Zaichick, Vladimir Ye, A. Tsyb Medical Radiological Research Center, Obninsk, Russian Federation; Ortner, Hugo Manfred, Fachbereich Material- und Geowissenschaften, Technische Universität Darmstadt, Darmstadt, GermanyFluorine was determined in the iliac crest bones of patients and in ribs collected from post-mortem investigations by particle-induced gamma-ray emission based on the 19F(p,p′y)19F reaction, using 2.0/2.5 MeV protons. The results indicate that for 68% of the human samples the F concentration is in the range 500-1999 μg g-1. For comparison purposes fluorine was also determined in some animal bones, in some animal tissues lateral profiles of fluorine were measured. © Springer-Verlag 2001. © 2020 Elsevier B.V., All rights reserved.Publication Metadata only Complexation and mutagenicity potential studies with N,N′-bis(2- hydroxynaphthalin-1-carbaldehydene)-1,2-bis-(p-aminophenoxy)ethane and a novel oxovanadium(IV) complex(2004) Temel, Hamdi̊; Çakir, Ümit; Tolan, Veysel; Otludil, Birol; Uǧraş, Halil Ibráhim; Temel, Hamdi̊, Department of Chemistry, Dicle Üniversitesi, Diyarbakir, Turkey; Çakir, Ümit, Department of Chemistry, Bahçeşehir Üniversitesi, Istanbul, Turkey; Tolan, Veysel, Department of Biology, Dicle Üniversitesi, Diyarbakir, Turkey; Otludil, Birol, Department of Biology, Dicle Üniversitesi, Diyarbakir, Turkey; Uǧraş, Halil Ibráhim, Department of Chemistry, Bahçeşehir Üniversitesi, Istanbul, TurkeyA new oxovanadium(IV) complex of the Schiff base obtained by condensation of 1,2-bis(p-aminophenoxy)ethane with 2-hydroxynaphthalin-1-carbaldehyde was synthesized. The complex was characterized by elemental analysis, magnetic measurements, mass spectral data, UV-visible and IR spectra. Stability constants and thermodynamic values for complexation between Cu(NO3) 2, Zn(NO3)2·6H2O, Ni(NO 3)2·6H2O and VOSO4· 5H2O and the ligand in 80% dioxane/water were determined by conductance measurements. Ni(II) and Cu(II) complexes of the ligand synthesized by a previously described method were found to be mutagens on strain TA 100 in the presence and absence of S9 mix. These compounds are classified as mutagenic in the Ames test. © 2008 Elsevier B.V., All rights reserved.Publication Metadata only Sources of trace elements in total diet: A statistical approach(2004) Aras, Namik K.; Chatt, Amares; Aras, Namik K., Bahçeşehir Üniversitesi, Istanbul, Turkey; Chatt, Amares, Department of Chemistry, Dalhousie University, Halifax, CanadaWe have collected sixteen total diet samples from two socioeconomic groups in Turkey by duplicate portion techniques. Samples were homogenized with titanium-blade homogenizer, freeze dried and analyzed for their minor and trace elements mostly by neutron activation analysis. Bread and flour samples were also collected from the same regions and analyzed similarly by instrumental neutron activation analysis. We have determined concentrations of more than 25 elements in total diets, bread and flour, and fiber and phytate in total diets. We have determined daily dietary intakes of these population groups, probable source of elements through correlation coefficients, and enrichment factor calculations. © 2012 Elsevier B.V., All rights reserved.Publication Metadata only A direct-sequence spread-spectrum communication system for integrated sensor microsystems(2005) Aydın, Nizamettin; Arslan, Tughrul S.; Cumming, David R.S.; Aydın, Nizamettin, School of Engineering and Electronics, The University of Edinburgh, Edinburgh, United Kingdom, Department of Computer Engineering, Bahçeşehir Üniversitesi, Istanbul, Turkey; Arslan, Tughrul S., School of Engineering and Electronics, The University of Edinburgh, Edinburgh, United Kingdom, Institute for System Level Integration, Edinburgh, United Kingdom; Cumming, David R.S., Department of Electronics and Electrical Engineering, University of Glasgow, Glasgow, United KingdomSome of the most important challenges in health-care technologies have been identified to be development of noninvasive systems and miniaturization. In developing the core technologies, progress is required in pushing the limits of miniaturization, minimizing the costs and power consumption of microsystems components, developing mobile/ wireless communication infrastructures and computing technologies that are reliable. The implementation of such miniaturized systems has become feasible by the advent of system-on-chip technology, which enables us to integrate most of the components of a system on to a single chip. One of the most important tasks in such a system is to convey information reliably on a multiple-access-based environment. When considering the design of telecommunication system for such a network, the receiver is the key performance critical block. The paper describes the application environment, the choice of the communication protocol, the implementation of the transmitter and receiver circuitry, and research work carried out on studying the impact of input data characteristics and internal data path complexity on area and power performance of the receiver. We provide results using a test data recorded from a pH sensor. The results demonstrate satisfying functionality, area, and power constraints even when a degree of programmability is incorporated in the system. © 2005 IEEE. © 2008 Elsevier B.V., All rights reserved.Publication Metadata only Relationship between general and context-specific attachment orientations in a Turkish sample(2006) Imamoǧlu, Selen; Olcay Imamoĝlu, E.; Imamoǧlu, Selen, Faculty of Communication, Bahçeşehir Üniversitesi, Istanbul, Turkey; Olcay Imamoĝlu, E., Department of Psychology, Middle East Technical University (METU), Ankara, TurkeyThe authors explored the relationship between general and context-specific attachment orientations involving family, peer, and romantic contexts. Participants were 110 Turkish university students (50 men, 60 women). The authors used the Turkish form of K. Bartholomew and L. M. Horowitz's (1991) Relationship Questionnaire (RQ) to measure participants' general and specific attachment orientations. Using 5-point Likert-type scales, participants specified the degree to which each of the 4 descriptions of RQ (i.e., of secure, preoccupied, dismissing, and fearful orientations) represented (a) how they generally felt in close relationships, and then how they felt in their (b) family relationships, (c) romantic relationships, and (d) peer relationships. The present results indicated that participants who were generally high rather than low on a particular attachment orientation tended to be so across the 3 contexts, thereby supporting the trait-like conceptualization of attachment styles. However, the present results also supported conceptualization of attachment orientations as specific context-related tendencies because regardless of their general orientations, participants reported feeling relatively more secure in some relationships (e.g., family) than in others (e.g., romantic). The authors discussed the present results as supporting (a) the coexistence of both general and specific attachment orientations in the cognitive system and (b) the cross-cultural validity of attachment orientations. Copyright © 2006 Heldref Publications. © 2009 Elsevier B.V., All rights reserved., MEDLINE® is the source for the MeSH terms of this document.Publication Metadata only Decolorization of Remazol Yellow RR Gran by white rot fungus Phanerochaete chrysosporium(Triveni Enterprises, 2007) Demir, Goksel; Özcan, Hüseyin Kurtuluş; Tüfekçi, Neşe; Borat, Mehmet; Demir, Goksel, Department of Environmental Engineering, Bahçeşehir Üniversitesi, Istanbul, Turkey; Özcan, Hüseyin Kurtuluş, Department of Environmental Engineering, Istanbul Üniversitesi, Istanbul, Turkey; Tüfekçi, Neşe, Department of Environmental Engineering, Istanbul Üniversitesi, Istanbul, Turkey; Borat, Mehmet, Department of Environmental Engineering, Fatih Üniversitesi, Istanbul, TurkeyIn this study, the removal of color, chemical oxygen demand (COD) and aromatic group from one of the azo dyes, Remazol Yellow RR Gran, had been carried out by using one of the white rot fungi, Phanerochaete chrysosporium. Experimental studies were performed in growth media containing different amounts of dye and glucose. Color measurements were done at 436 nm wavelength using spectrophotometer, while aromatic group measurements were done at 280 nm wavelength using UV/Visible spectrophotometer. As a result of this study, the values of the removable color concentration were determined as 10 mgl -1 and lower. The optimum medium glucose concentration was determined to be 2 gl-1 during color removal processes, aromatic group measurements were done in samples in the UV region at 280 nm wavelength. As a result of the measurements, it was shown that certain amount of aromatic group remained in the model wastewater at the end of the process. © Triveni Enterprises. © 2020 Elsevier B.V., All rights reserved.Publication Metadata only Prediction of cyclosporine A blood levels: An application of the adaptive-network-based fuzzy inference system (ANFIS) in assisting drug therapy(2008) Gören, Sezer; Karahoca, Adem; Onat, Filiz Yilmaz; Gören, Mehmet Zafer; Gören, Sezer, Department of Computer Engineering, Bahçeşehir Üniversitesi, Istanbul, Turkey; Karahoca, Adem, Department of Computer Engineering, Bahçeşehir Üniversitesi, Istanbul, Turkey; Onat, Filiz Yilmaz, Department of Pharmacology and Clinical Pharmacology, Marmara Üniversitesi Tip Fakültesi, Istanbul, Turkey; Gören, Mehmet Zafer, Department of Pharmacology and Clinical Pharmacology, Marmara Üniversitesi Tip Fakültesi, Istanbul, TurkeyObjective: Therapeutic drug monitoring (TDM) is a procedure in which the levels of drugs are assayed in various body fluids with the aim of individualizing the dose of critical drugs, such as cyclosporine A. Cyclosporine A assays are performed in blood. Methods: We proposed the use of the Takagi and Sugeno-type adaptive-network-based fuzzy inference system (ANFIS) to predict the concentration of cyclosporine A in blood samples taken from renal transplantation patients. We implemented the ANFIS model using TDM data collected from 138 patients and 20 input parameters. Input parameters for the model consisted of concurrent use of drugs, blood levels, sampling time, age, gender, and dosing intervals. Results: Fuzzy modeling produced eight rules. The developed ANFIS model exhibited a root mean square error (RMSE) of 0.045 with respect to the training data and an error of 0.057 with respect to the checking data in the MATLAB environment. Conclusion: ANFIS can effectively assist physicians in choosing best therapeutic drug dose in the clinical setting. © 2008 Springer-Verlag. © 2009 Elsevier B.V., All rights reserved., MEDLINE® is the source for the MeSH terms of this document.Publication Metadata only Prediction of tropospheric ozone concentration by employing artificial neural networks(2008) Ozdemir, Huseyin; Demir, Goksel; Altay, Gökmen; Albayrak, Sefika; Bayat, Cuma; Ozdemir, Huseyin, Department of Environmental Engineering, Bahçeşehir Üniversitesi, Istanbul, Turkey; Demir, Goksel, Department of Environmental Engineering, Bahçeşehir Üniversitesi, Istanbul, Turkey; Altay, Gökmen, Department of Electrical and Electronic Engineering, Bahçeşehir Üniversitesi, Istanbul, Turkey; Albayrak, Sefika, Department of Environmental Engineering, Bahçeşehir Üniversitesi, Istanbul, Turkey; Bayat, Cuma, T.C. Beykent Üniversitesi, Istanbul, TurkeyAir pollution modeling and prediction have great importance in preventing the occurrence of air pollution episodes and provide sufficient time to take the necessary precautions. Recently various algorithms such as artificial neural networks (ANNs) is applied to air quality modeling. The present work aims to predict tropospheric ozone concentration by the ANN with three pollutant parameters and eight meteorological factors in selected areas. We have preferred three-layer perceptron type of ANNs, which consists of input, hidden, and output layers, respectively. To evaluate the performance of the ANN model, selected statistical performance parameters are used. The overall system finds correlation parameter, r between 0.8 and 0.9 for the test data sets. Therefore, results show the successful follow of estimated ozone concentrations by the model with the observed values. Finally, it was seen that the ANN is one of the compromising methods in estimation of environmental complex air pollution problems. © Mary Ann Liebert, Inc. 2008. © 2008 Elsevier B.V., All rights reserved.