Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Dertli, Enes(47)
- Pat, Suat(29)
- Özen, Soner(29)
- Şenay, Volkan(24)
- Korkmaz, Şadan(23)
- Esmer, Yusuf(21)
- Şahin, Engin(21)
- Korkmaz, Özge(20)
- Cuce, Erdem(19)
- Öner, Erdal(18)
- Öztürk, Mesut(18)
- Artar, Musa(17)
- Yilmaz, Mustafa Tahsin(17)
- İspirli, Hümeyra(16)
- Ecem Bayram, Nesrin(15)
- Kaya, Yunus(15)
- Cinar, Mehmet(13)
- Cuce, Pinar Mert(12)
- Kamiloğlu, Aybike(12)
- Kutlu, Naciye(12)
- Mercan, Emin(12)
- Birinci, Ahmet(11)
- Bulut, Mehmet(11)
- Yaylacı, Murat(11)
- Bayram, Ozkan(10)
- Can, Zehra(10)
- Doğan, Zeki(10)
- Kahya, Cem(10)
- Karaali, Rabi(10)
- Pabuçcu, Hakan(10)
- Tosun, Figen Çam(10)
- Özdemir, Akın(10)
- Ayazoglu, Rabil(9)
- Battal, Fetullah(9)
- Bayram, Nesrin Ecem(9)
- Büte, Mustafa(9)
- Ertugrul, Mehmet(9)
- Kadakal, Mahir(9)
- Kaplan, Abdullah(9)
- Sarikaya, İsmail(9)
Yayınlar
- MakaleYalnız künye2013Scopus SJRQ3Bacteria-modified red mud for adsorption of cadmium ions from aqueous solutions
Kalkan, Ekrem; Nadaroglu, Hayrunnisa; Dikbaş, Neslihan; Taşgin, Esen; Çelebi, Neslihan
Cadmium is a toxic metal widely used in industry and it enters the environment from electroplating, smelting, alloy manufacturing, pigments, plastics, cadmium-nickel batteries, fertilizers, pesticides, mining, pigments and dyes, textile operations, and refining industries. Considering the harmful effects of cadmium, it is necessary to remove cadmium from liquid wastes at least to the limit accepted by regulations. The present study describes removal of cadmium from aqueous solutions using bacteria-modified red mud waste material. Batch adsorption experiments have been performed as a function of pH, contact time, temperature, and adsorbent dosage. The optimum results were obtained at pH 4.0, contact time of 60 min, temperature of 30°C, and an adsorbent dose of 1 mg/mL. The adsorption data was correlated with Langmuir and Freundlich adsorption models. The maximum adsorption capacity obtained from Langmuir adsorption model was 83.034 mg/g. The kinetic processes of cadmium adsorption on bacteria-modified red mud were described by applying pseudo-first-order and pseudo-second-order rate equations. The kinetic data for the adsorption process obeyed pseudo-second-order rate equations. Various thermodynamic parameters, such as ΔG°, ΔH°, and Δ15° were calculated and the negative value of ΔG° obtained indicate that the process was spontaneous, and the positive value of ΔH° confirms the reaction to be endothermic, and the positive value of ΔS° shows that the decrease in the degree of freedom of the adsorbed species. The bacteria-modified red mud investigated in this study exhibited a high potential for the removal of cadmium from aqueous solutions.
AtıfScopus30İncele
- MakaleYalnız künye2013Scopus SJRQ2Molecular structure, electronic properties, NLO, NBO analysis and spectroscopic characterization of Gabapentin with experimental (FT-IR and FT-Raman) techniques and quantum chemical calculations
Sinha, Leena; Karabacak, Mehmet; Narayan, V.; Cinar, Mehmet; Prasad, Onkar
Gabapentin (GP), structurally related to the neurotransmitter GABA (gamma-aminobutyric acid), mimics the activity of GABA and is also widely used in neurology for the treatment of peripheral neuropathic pain. It exists in zwitterionic form in solid state. The present communication deals with the quantum chemical calculations of energies, geometrical structure and vibrational wavenumbers of GP using density functional (DFT/B3LYP) method with 6-311++G(d,p) basis set. In view of the fact that amino acids exist as zwitterions as well as in the neutral form depending on the environment (solvent, pH, etc.), molecular properties of both the zwitterionic and neutral form of GP have been analyzed. The fundamental vibrational wavenumbers as well as their intensities were calculated and compared with experimental FT-IR and FT-Raman spectra. The fundamental assignments were done on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanical (SQM) method. The electric dipole moment, polarizability and the first hyperpolarizability values of the GP have been calculated at the same level of theory and basis set. The nonlinear optical (NLO) behavior of zwitterionic and neutral form has been compared. Stability of the molecule arising from hyper-conjugative interactions and charge delocalization has been analyzed using natural bond orbital analysis. Ultraviolet-visible (UV-Vis) spectrum of the title molecule has also been calculated using TD-DFT method. The thermodynamic properties of both the zwitterionic and neutral form of GP at different temperatures have been calculated.
AtıfScopus53WoS53OpenAlex58İncele
- MakaleYalnız künye2013Scopus SJRQ2Experimental and theoretical FTiR and FT-Raman spectroscopic analysis of 1-pyrenecarboxylic acid
Karabacak, M.; Cinar, M.; Kurt, M.; Chinna Babu, P.; Sundaraganesan, N.
The title molecule 1-pyrenecarboxylic acid (1PCA) has been characterized by FTiR, FT-Raman, NMR and UV-Vis spectral analyses. The molecular geometry, harmonic vibrational modes, the corresponding wavenumbers and iR intensities of 1PCA were calculated by DFT method with 6-311G(d, p) basis set. The assignments of the fundamentals were proposed on the basis of total energy distribution (TED) calculations. The calculated 13C and 1H NMR chemical shifts using gauge including atomic orbitals (GiAOs) approach are in good agreement with the observed chemical shifts. The polarizability and first order hyperpolarizability of the title molecule were calculated and interpreted. Using TD-DFT method, the electronic transitions have been compared with the experimental wavelengths. The molecular electrostatic potential map was used for prediction of possible hydrogen and oxygen bonding sites 1PCA molecule.
AtıfScopus45WoS43OpenAlex46İncele
- MakaleYalnız künye2013Scopus SJRQ1Determination of aroma profiles of olive oils from Turkish olive cultivars
Bayrak, Ali; Kıralan, Mustafa; Kara, Hasan Hüseyin
This study analyzed volatile aromatic compounds present in the oils of Turkish olive cultivars. The cultivars Gemlik, AyvalIk, Memecik, Domat, Uslu, HalhalI, Kilis yaǧlIk, Nizip yaǧlIk, Haşebi and Karamani were harvested from important Turkish olive-growing locations, such as BalIkesir, Bursa, Manisa, AydIn, Muǧla, İzmir, Kilis, Mersin, Hatay and Gaziantep during the 2007-2008 and 2008-2009 growing seasons. Olive samples were collected in two harvest years, at almost the same maturity stage, and processed under the same conditions. Headspace solid-phase microextraction (HS-SPME) was used to analyze volatile aroma compounds in the olive oil samples. Forty-seven compounds were characterized and quantified using gas chromatography-mass spectrometry/flame ionization detector (GC-MS/FID). The most abundant identified compounds were trans-2-hexenal, hexanal and 3-methyl-1-butanol. The trans-2-hexenal, hexanal and 3-methyl-1-butanol contents of oil samples varied between 0.86-67.15, 3.93-61.82 and 0.48-84.74 %, respectively.
AtıfScopus11WoS11OpenAlex11İncele
- BildiriYalnız künye2013Nonlinear analysis of structures by Total Potential Optimization using Metaheuristic Algorithms (TPO/MA)
Toklu, Y.C.; Bekdaş, G.; Temür, R.; Toklu, Ş.Ç.; Uzun, F.; de Wilde, P.; Suter, G.; Rafiq, Y.
Structural analysis problems can be formulized as either root finding problems, or optimization problems. The general practice is to choose the first option directly or to convert the second option again to a root finding problem by taking relevant derivatives and equating them to zero. The second alternative is used very randomly as it is and that only for some simple demonstrative problems, most probably due to difficulty in solving optimization problems by classical methods. The method called Total Potential Optimization using Metaheuristic Algorithms (TPO/MA) described in this study successfully enables handling structural problems with optimization formulation. Using metaheuristic algorithms provides additional advantages in dealing with all kinds of constraints.
AtıfScopus1İncele
- BildiriYalnız künye2013Space applications of tensegric structures
Toklu, Y.C.; Temur, R.; Bekdas, G.; Uzun, F.
Tensile integrity (tensegrity, tensegric) structures are suggested for possible use in outer space and on space bodies because of their minimal need for structural materials, ease of transfer and mounting. Structurally their behavior is non-linear. It has been shown here that their structural analysis can successfully be performed by total potential optimization using meta-heuristic algorithms (TPO/MA). The named method is an emerging technique that combines minimum energy principle of mechanics with metaheuristic algorithms. The technique thus defined has been shown to be very efficient, accurate and robust in analyzing structures. The success of the technique is especially profound for non-linear structures. In this study the named technique is applied to tensile integrity (tensegrity, tensegric) structures which are known to be highly nonlinear, thus difficult to analyze.
AtıfScopus10İncele
- MakaleYalnız künye2013Scopus SJRQ1An experimental exergetic comparison of four different heat pump systems working at same conditions: As air to air, air to water, water to water and water to air
Çakir, Uǧur; Çomakli, Kemal; Çomakli, Ömer; Karsli, Süleyman
In this study, we designed a multifunctional heat pump system using just one scroll compressor and which can be run in four different modes, namely air to air, air to water, water to water and water to air, in order to make an experimental energetic and exergetic performance comparison. Experimental system consists of two condensers and two evaporators and uses R22 as working fluid. One of the evaporators and condensers uses water and the others use air as heat source/sink. Heating capacities of four heat pump types are equal to each other. It is realized by adjusting the mass flow rate and temperature level of external fluid of condenser. Results show that the heat pump unit which has the maximum COP (coefficient of performance) value is water to air type with 3.94 and followed by water to water type with 3.73, air to air type with 3.54 and air to water type with 3.40. Ranking of four heat pump types with respect to their mean exergy efficiency is as follows; water to air type with 30.23%, air to air type with 30.22%, air to water type with 24.77% and water to water type with 24.01%. Exergy destruction rates of the systems were investigated in this study and the results revealed that the heat pump type which has the maximum exergy destruction is air to air type with 2.93kW. The second highest one is air to water type with 2.84kW. The third highest one is water to air type with 2.64kW and last one is water to water type with 2.55kW. It is understood that the temperature of the evaporator external fluid affects the exergetic efficiency of the system more than the mass flow rate. In contrast to the previous, the dominant parameter which has more important effect on the exergy destruction of the heat pump unit is the mass flow rate of evaporator external fluid.
AtıfScopus55WoS46İncele
- MakaleYalnız künye2013Scopus SJRQ2Analysis of trusses by total potential optimization method coupled with harmony search
Toklu, Yusuf Cengiz; Bekdaş, Gebrail; Temur, Rasim
Current methods of analysis of trusses depend on matrix formulations based on equilibrium equations which are in fact derived from energy principles, and compatibility conditions. Recently it has been shown that the minimum energy principle, by itself, in its pure and unmodified form, can well be exploited to analyze structures when coupled with an optimization algorithm, specifically with a meta-heuristic algorithm. The resulting technique that can be called Total Potential Optimization using Meta-heuristic Algorithms (TPO/MA) has already been applied to analyses of linear and nonlinear plane trusses successfully as coupled with simulated annealing and local search algorithms. In this study the technique is applied to both 2-dimensional and 3-dimensional trusses emphasizing robustness, reliability and accuracy. The trials have shown that the technique is robust in two senses: all runs result in answers, and all answers are acceptable as to the reliability and accuracy within the prescribed limits. It has also been shown that Harmony Search presents itself as an appropriate algorithm for the purpose.
AtıfScopus33WoS26OpenAlex26İncele
- MakaleYalnız künye2013Scopus SJRQ2Separation and pre-concentration of palladium(II) from environmental and industrial samples by formation of a derivative of 1,2,4-triazole complex on Amberlite XAD-2010 resin
Serencam, Huseyin; Bulut, Volkan Numan; Tufekci, Mehmet; Gundogdu, Ali; Duran, Celal; Hamza, Sibel; Soylak, Mustafa
A simple separation/pre-concentration method was developed for extraction of Pd(II) in various environmental samples, based on its adsorption of 4-phenyl-5-{[(4-phenyl-5-pyridin-4-yl-4H-1,2,4-triazole-3-yl)thio]methyl}-4H-1,2,4-triazole-3-thyol (PPTTMET) complex on Amberlite XAD-2010 resin in a mini column. The ligand has high affinity for Pd(II) among many other metals that are taken into consideration. The flame atomic absorption spectrometry is employed to determine the concentration of Pd(II). The optimum working conditions which were determined are as follows: 0.05 mol L-1 HNO3 as working medium, 1.0 mol L-1 HCI in acetone as elution solvent, 0.75 mg of PPTTMET amount and 750 mL of sample volume. The system was independent from the flow rates between 3.1 and 23.1 mL min-1. The Pd(II) adsorption capacity of Amberlite XAD-2010 resin was found to be 12.8 mg g-1 and the enrichment factor was calculated as 375. The method was successfully applied for the determination of Pd(II) in motorway dust samples, anodic sludge, gold ore, industrial electronic waste materials and various water samples.
AtıfScopus17WoS15OpenAlex17İncele
- MakaleYalnız künye2013Scopus SJRQ3Selective Separation, Preconcentration, and Determination of Au (III) Ions in Environmental Samples by Coprecipitation With a 1,2,4-Triazole Derivative
Ozdes, Duygu; Duran, Celal; Serencam, Huseyin; Şahin, Deniz
An effective, simple, lowcost, and accurate separation and preconcentration procedure which has minimal impact on the environment has been developed. It is based on the carrier element-free coprecipitation (CEFC) of Au(III)ions using N-benzyl-2-{[3-methyl-4-(2morpholine-4-ylethyl)-5-oxo-4,5-dihydro-1H-1,2, 4-triazole-1-yl] acetyl)hydrazinecarboxamide (BODAH) as an organic coprecipitant. Determination of the Au(IH) ion levels was performed by flame atomic absorption spectrometry (FAAS). The developed method provided a detection limit of 0.36 μg L-1 and the relative standard deviation for Au(III)ions was found to be 5.1%. Spike tests and certified reference material analyses were performed to validate the method. The developed method was systematically investigated in different sets of experimental parameters that influence the quantitative recovery of the Au(III)ions. Based on these investigations, the optimum conditions for the determination of Au(III) ions at trace levels were established. The coprecipitation method was applied to anodic slime, gold ore, soil, and water samples to determine their Au(III)levels.
AtıfScopus6İncele
- MakaleYalnız künye2013Scopus SJRQ2Synthesis, conformational and spectroscopic characterization of monomeric styrene derivatives having pendant p-substituted benzylic ether groups
Cinar, Mehmet; Ozcan, Levent; Karabacak, Mehmet; Erol, Ibrahim
Three derivatives of styrene monomer, 4-chlorophenyl-4-vinylbenzyl ether (I), 4-methoxyphenyl-4-vinylbenzyl ether (II) and 4-ethylphenyl-4-vinylbenzyl ether (III) were synthesized. The synthesized two novel compounds (I and III) and one with undefined structural features were identified by experimental spectroscopic techniques and density functional approach. The optimized geometrical structure, vibrational and electronic transitions along with chemical shifts of those compounds were presented in this study. The vibrational spectra of investigated compounds were recorded in solid state with FT-IR spectrometry in the range of 4000-400 cm-1. The computational vibrational wavenumbers and also ground state equilibrium conformations were carried out by using density functional method with 6-311++G(d,p) basis set. Assignments of the fundamental vibrational modes were examined on the basis of the measured data and total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanical (SQM) method. Isotropic chemical shift of hydrogen and carbon nuclei were investigated via observed 1H and 13C NMR spectra in deuterated DMSO solution and predicted data applied with gauge-invariant atomic orbitals (GIAOs) method. The UV absorption spectra of monomers were observed in the range of 200-800 nm in ethanol, and time dependent DFT method was used to obtain the electronic properties. A detailed description of spectroscopic behaviors of compound was given based on the comparison of experimental measurements and theoretical computations.
AtıfScopus1WoS1OpenAlex1İncele
- Kitap BölümüYalnız künye2013Analysis of structures by total potential optimization using meta-heuristic algorithms (TPO/MA)
Toklu, Y.C.; Toklu, N.E.
Use of meta-heuristic algorithms in analysis of structures is much more recent thantheir use in design of structures. Effectively, while design optimization makes use ofgenetic algorithms, simulated annealing, swarm optimization, etc. since about half acentury with an increasing interest, these techniques are being used in structural analysissince a decade only.Total Potential Optimization using Meta-heuristic Algorithms (TPO/MA), thoughbeing an emerging method at the moment, has proved to be very efficient in solvingnonlinear problems, involving both material and geometric nonlinearities. Thecapabilities of the method in treating under-constrained problems and problems with nonuniquesolutions are much more advanced than the classical methods including the wellknownFinite Element Method.
AtıfScopus6İncele
- MakaleYalnız künye2013Scopus SJRQ3The effects of reading-writing-application technique and learning together technique on increasing 6th grade students' academic achievement and students' opinions about these techniques
Aksoy, Gokhan; Gurbuz, Fatih
The aim of this study is to identify the effects of Reading-Writing-Application technique, Learning Together technique and Traditional Teaching methods on increasing students' academic achievements in the unit "particular structure of matter" at the science and technology course. In addition, students' written opinions were received from students (RWAG and LTG) about Reading-Writing-Application and Learning Together techniques. This study included 92 students from three different classes at the 6 th grade of a primary school during the 2010-2011 academic year. One of these classes served as the Reading-Writing-Application Group (RWAG), using group Reading-Writing-Application Technique, the second one served as the Learning Together Group (LTG), using the Learning Together technique, and the last one served as the Traditional Teaching Group (TTG), using the Traditional Teaching methods. The main instruments for obtaining data were the Academic Achievement Test (AAT) and Students' Written Opinions (SWO). Academic Achievement Test was applied to the all treatments groups but Students' Written Opinions was only applied RWAG and LTG. The data obtained on instruments were evaluated by using descriptive statistic, one-way variance analysis ANOVA and content analysis according to qualitative approach. It was concluded from the research results that the teaching of the unit "particular structure of matter" via the Reading-Writing-Application technique was more effective in increasing students' academic achievements compared to Learning Together technique and the Traditional Teaching methods. In addition, the written opinions of RWAG students and LTG students showed that the students have some negative opinions about Cooperative Learning Method.
AtıfScopus2İncele
- MakaleYalnız künye2013Scopus SJRQ2Determination of conformational and spectroscopic features of ethyl trans-alfa-cyano-3-indole-acrylate compound: An experimental and quantum chemical study
Cinar, Mehmet; Karabacak, Mehmet
The optimized geometrical structure, vibrational and electronic transitions, chemical shifts and non-linear optical properties of ethyl trans-alfa-cyano-3-indole-acrylate (C14H12N 2O2) compound were presented in this study. The ground state geometrical structure and vibrational wavenumbers were carried out by using density functional (DFT/B3LYP) method with 6-311++G(d,p) as basis set. The vibrational spectra of title compound were recorded in solid state with FT-IR and FT-Raman in the range of 4000-400 cm-1 and 4000-10 cm -1, respectively. The fundamental assignments were done on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanical (SQM) method. The 1H, 13C and DEPT NMR spectra were recorded in DMSO solution, and gauge-invariant atomic orbitals (GIAO) method was used to predict the isotropic chemical shifts. The UV-Vis absorption spectra of the compound were recorded in the range of 200-800 nm in various solvents of different polarity (acetone, benzene, chlorobenzene, chloroform, DMSO, ethanol, methanol and toluene). Solvent effects were calculated using TD-DFT and CIS method. To investigate the non-linear optical properties, the polarizability, anisotropy of polarizability and molecular first hyperpolarizability were computed. A detailed description of spectroscopic behaviors of compound was given based on the comparison of experimental measurements and theoretical computations.
AtıfScopus12WoS11İncele
- MakaleYalnız künye2012An approach based on TRIZ methodology and SERVQUAL scale to improve the quality of health-care service: a case study
Yener, Engin; Altuntas, Serkan
Sağlık hizmetlerinin kalitesini arttırmak için yaratıcı problem çözme teorisi (TRIZ) ve hizmet kalitesi ölçüm skalasına (SERVQUAL) dayanan yeni bir yenilikçi yaklaşım önerilmiştir. SERVQUAL servis kalitesinin ölçümü için (özellikle sağlık hizmetlerinde) yaygın şekilde kullanılırken, TRIZ, sanayileşmiş ülkelerde sorunların çözümü için geniş bir alanda kullanılmaktadır. Su et al. (2008), servis kalitesi ile ilgili problemlerin çözümü için TRIZ’e dayanan sistematik bir çerçeve önermiştir. Bu çalışmada ise, SERVQUAL skalasının parametrelerini TRIZ’e adapte ederek, sağlık hizmetleri sektörünün kalitesini arttırmak için Su et al. (2008)’ün çalışması ışığında bir metodoloji önerilmektedir. İlk olarak TRIZ’in 39 mühendislik parametresinin SERVQUAL skalası ile benzeşen boyutları eşleştirilmiştir. Sonra çalışmamızı doğrulamak için anket formu hazırlanmıştır. Anket formumuz, Türkiye’de, Atatürk Üniversitesi Hastanesindeki on doktora(3’ü profesör diğerleri uzman doktor) uygulanmıştır. Son olarak, bu yeni yenilikçi yaklaşımın nasıl uygulanacağını göstermek için bir örnek uygulama yürütülmüştür. TRIZ’in uygulama alanı bu çalışma sayesinde genişletilmiştir.
AtıfTR Dizin2
İncele - MakaleYalnız künye2012Effects of two different cooperative learning techniques on students’ academic achievements
Aksoy, Gokhan; Gurbuz, Fatih
The aim of this study is to determine the effects of two different cooperative learning techniques (Student Teams-Achievement Divisions technique and Jigsaw technique) on academic achievement of seventh grade students at unit of the “Electricity in Our Life”. The subjects of the study were 62 seventh grade students at a primary school in Erzurum, who were in two different classes and taught by the same teacher at 2011-2012 education year. One of the classes was randomly selected as the Student Teams-Achievement Divisions Group (STADG), using group student teams-achievement divisions technique and the second served as the Jigsaw Group (JG), using group jigsaw technique. The main instruments for obtaining data were the Electricity in Our Life Academic Achievement Test (EOLAAT). The study results were analyzed by SPSS. The data obtained on instruments were evaluated by using descriptive statistic, independent samples groups t test, paired sample groups t test and effect sizes. As the results of the EOLAAT revealed that student teams-achievement divisions technique is more successful than jigsaw technique in the unit “electricity in our life”.
AtıfTR Dizin8
İncele - MakaleYalnız künye2012Endülüs’te Tefsir kültürü
Şentürk, Mustafa
Endülüs tefsir kültürünü ele almayı amaçladığımız bu makalede, bölgede oluşan tefsîr anlayışını genel hatlarıyla şu sorulara cevap arayarak ele almak istiyoruz: Endülüs’te tefsîr nasıl ve ne zaman başladı? Endülüs’te tefsîrin öncüleri kimlerdi? Endülüs’te tefsîrin kaynakları nelerdi? Bölge müfessir-leri eserlerinde daha çok hangi Tefsîr kitaplarına başvuruyorlardı? Bölgede yaygın olan tefsîr usûlü nasıldı? Çeşitli tefsîr yönelişlerinden hangilerine daha çok ilgi duyuyorlardı? Bölge tefsîrinin özellikle-ri nelerdi? Endülüs’teki tefsîr anlayışı, diğer İslâm bölgelerinden farklılık arz ediyor muydu? Arz ediyor idiyse bunlar nelerdi? Ve son olarak Endülüs, bütün yönleriyle tefsîrde bir ekol oluşturabildi mi?
AtıfTR Dizin6
İncele - MakaleYalnız künye2012Demand for information and communication technology: An application
Kaynak, Selahattin; Karaca, Zeynep
Information and communication technologies are increasingly permeates daily life. The use of information and communication technologies that significantly affects the economic behavior of all units of economic decision is increasing day by day. For this reason, which information and communication technology tools and how often they are used and the identification of factors which affect their choice and demand for these tools are so important. In this study prepared for achieving these objectives, exploratory factor analysis, ANOVA and t test analysis was performed. The results of analysis show that as the income level, education level and number of employees in the family increases, the demand for information and communication technologies are increasing, too. At the same time, it is concluded that young people, people living in the city center and men demand information and communication technologies more.
- MakaleYalnız künye2012Health services demand: A Study in Erzurum
Kaynak, Selahattin; Yaylali, Muammer; Karaca, Zeynep
The sector of health services is a sector with a high potential of improvement. Given that every individual is likely to come across health services and that the resources shared for health services constitute a high rate of the resources shared for social welfare and since it is a sector with high externalities, it is of great importance to research the demand for this sector. The aim of this study, in line with the importance of this sector, is to determine the factors affecting the demand for health services. For this purpose, we estimate a logit model of demand for health services with SPSS and LIMDEP package softwares using the survey data. Our analysis suggests that the probability of the consumers demand for health services is positively related to the income, age and the number of the individuals in a family. It is also found that the average of the group specific variables, i.e. the economic factors, the attitudes and behaviors of the medical officials and the physical environments of the hospitals are significantly different from the general average in statistical terms at 0.05 level of significance.
AtıfTR Dizin16
İncele - MakaleYalnız künye2012Çatışma yönetim stratejisinin tahmin edicileri olarak örgütsel kültür tipleri
Kahya, Cem; Buzkan, Kemal; Karcıoğlu, Fatih
Her örgütü karakterize eden özellikler farklıdır ve bu farklılığın asıl kaynaklarından birisi de, örgütsel kültürdür. Her örgüt, kendine özgü bir kültür anlayışına sahiptir. Bu nedenle örgüt içerisinde ortaya çıkan çatışmanın yönetilmesinde, örgütsel kültürün de dikkate alınması gerekecektir. Buradan hareketle çalışmamızın temel amacı, örgüt yöneticileri tarafından çoğunlukla tercih edilen çatışma yönetim stratejisi ile örgüt çalışanları tarafından baskın olarak algılanan örgütsel kültür tipi arasındaki ilişkiyi incelemektir. Böylece çatışma yönetim stratejisinin belirlenmesinde, örgütsel kültür tipinin herhangi bir etkisinin olup olmadığı test edilmiş olacaktır. Çalışma, ankete dayalı bir alan araştırmasıdır ve Erzurum ilinde faaliyet gösteren bir firmada çalışan toplam 146 kişi üzerinde gerçekleştirilmiştir. Araştırma sonuçları, firma çalışanları tarafından baskın olarak algılanan örgütsel kültür tipinin pazar kültürü olduğunu ve firma yöneticileri tarafından çoğunlukla tercih edilen çatışma yönetim stratejisinin ise problem çözme olduğunu göstermiştir. İleri sürülen hipotez testi ispatlanmıştır. Buna göre yöneticiler, çatışma yönetim stratejisini belirlerken, çalışanların algıladıkları örgütsel kültür tipinden etkilenmektedirler.
AtıfTR Dizin7
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