An Empirical Investigation of the Effectiveness of Hybrid Public Relations Practices of Municipalities

Municipalities need to create a positive image by paying attention to public relations activities during their tenure as they have been elected to serve by the local residents. Continuous improvement of the service quality of the municipalities that serve mainly local people can only be possible through getting regular feedback on their public relations activities. In this research, it was aimed to investigate the efficiency of hybrid public relations efforts of municipalities. Operational success of Turunc Desk, which is a comprehensive public relations project of Muratpaşa Municipality that operates in both traditional and digital platforms has been examined. It has been analyzed to what extent the municipality's multi-channel public relations efforts meet the expectations of the residents

Preparation and characterization of alumina powders and suspensions

Thesis (Master)--Izmir Institute of Technology, Materials Science and Engineering, Izmir, 2000Includes bibliographical references (leaves: 131-136)Text in English; Abstract: Turkish and Englishxiii, 136 leavesThis study involves the preparation of fine alumina powders derived from Bayer gibbsite and also aqueous alumina suspensions by using tri block copolymers. Preparation of alumina powders was performed by decomposition of gibbsite into transition alumina phase followed by controlled transformation to alpha phase. To increase transformation rate.. to a-alumina in transition phase hence influence the nucleation and growth rate of the solid-solid phase transformation ball milling and ultrasonication was applied. Gibbsite was thermally treated at 900°C to reach a transition form of alumina. In some cases a heat treatment at 350 °C was applied to create a network of submicroscopic cracks in the heated gibbsite that may help grinding. Ball milling and ultrasonic treatment before calcination at 1100, 1200 °C and 1450 °C followed these heat treatments. Characterizations of the powders were performed with XRD, FTIR, thermal analysis, density measurements and particle size determinations. According to the XRD patterns, complete transformation to alpha form occurred in powders previously heat treated at 900°C, mechanical treated and then cfllcined at 1200 °C in 8 hours and 1450 °C in 2 hours. Powders that were calcined at 1100 °C and 1200 °C in 1-2 hours contained considerable amount of kappa form together with alpha. The effect of the polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO/PPO/PEO) blockcopolymers on the dispersion behaviour of alumina powder suspensions in water were investigated at .0.125,1.0,14 and 50 vol% solid loadings by rheological and turbidity measurements. To compare the effects of block copolymers with other type of dispersants, measurements of some other well known dispersants were also conducted at 10-7 to 10-3 M. The results indicated that type block copolymers with high EO percentage have a positive effect when they are used with ultrasonic treatment on the agglomerated alumina suspensions. But it was not able to create stable dispersions ll1 the absence of ultrasonic bath application. Turbidity measurements at .0.5 wt% showed that some dispersants gave higher dispersion but the stability was reached after a time period. Ultrasonic treatment created stability but lowered the turbidity values

Interaction of sodium dodecyl sulfate with poly(ethyleneimine) in bulk solution and at the air-solution interface

Interaction of sodium dodecyl sulfate (SDS) with the cationic polyelectrolyte poly(ethyleneimine) (PEI) was investigated in this study. Turbidity measurements were performed in order to analyze the interaction and complex formation in bulk solution as a function of polymer concentration and pH. Surface tension measurements were made to investigate the properties of SDS/PEI/water mixtures at air/solution interface. Results revealed that SDS/PEI complexes form in solution depending on the surfactant and polymer concentration. A decrease was observed in surface tension values in the presence of SDS/PEI mixtures compared to the values of pure SDS solutions. Both solution and interfacial properties exhibited pH dependent behavior. A shift was seen in the critical micelle concentration of SDS solutions as a function of PEI concentration and solution pH. Monovalent and divalent salt additions showed some influence on the interfacial properties of SDS solutions in the presence of PEI. © Taylor & Francis Group, LLC

Investigation of Teacher Candidates' Attitudes Towards Multicultural Education and Their Focus of Control According to Different Variables

In this research, the relationship between the levels of locus of control of teacher candidates who will be not only practitioners of the innovations in education, but will also have to work with students from different cultures, and the levels of Multicultural Proficiency Perceptions will be studied. On the other hand, as levels of teacher candidates’ optimism increase, their attitudes towards innovations and working in different cultures are estimated to be more positive. Moreover, Attitude Scale towards Multicultural Education for Teacher Candidates developed by Yavuz and Anıl (2010) and “Locus of Control" are used in the research. The study group consists of 353 prospective teachers studying in different undergraduate programs. SPSS for Windows 20.0 program was used for data analysis. Kruskal Wallis, Mann Whitney - U and Spearman Correlation were used in the analyzes. It was found that the locus of control and multicultural attitudes of the participants did not differ according to their gender. According to the findings of the study, it is seen that as the teacher candidates tend to have internal locus of control, their attitudes towards multicultural education increase. In addition, it has been determined that the locus of control differ significantly according to the age and the undergraduate program in which they study. On the other hand, the attitudes of the participants towards multicultural education differed according to their age, undergraduate program and grade. In the light of these results, the importance of carrying out studies for the development of these two variables from the first stages of learning levels emerges

HERITABILITY AND PATH ANALYSIS OF SOME ECONOMICAL CHARACTERISTICS IN LENTIL

Twenty-nine lentil (Lens culinaris Medik) genotypes were grown from 1997/98 to 1998/2001 at Dicle University, Faculty of Agriculture in Diyarbakir The heritability for days to fl owering and maturity, plant height, height of lowest pod, number of pod per plant, 1000 seed weight and seed yield were estimated as 0.94, 0.78, 0.52, 0.72, 0.37, 0.87 and 0.53, respectively. The path analysis indicated that total biological yield and number of clusters and pods per plant had very high positive direct effect on seed yield

Influence of dispersing agents on the solubility of perovskites in water

In this study, solubility behavior of lead magnesium niobate (PMN) powders in water was investigated in the presence of pure polyacrylic acid and polyacrylic acid/polyethylene oxide comb polymers. Experiments were performed by measuring the solubility of PMN in terms of the concentration of Pb+2 and Mg+2 ions in supernatant as a function of pH and dispersing agent dosage. The concentrations of the metal ions in supernatant were found to be affected by the dispersant concentration, stirring time and the suspension pH. Results revealed that both dispersing agents enhance the cation dissolution from PMN surface at pH 9 due to weak (reversible) adsorption and complexation of Pb+2 and Mg+2 by carboxylate groups. On the other hand, under acidic conditions cation dissolution from PMN is inhibited and this was attributed to the strong adsorption of dispersing agents onto the powder surface and formation of a dense polymer layer

Alumina/water suspensions in the presence of PEO-PPO-PEO triblock copolymers

The aim of this study was to investigate the stability and dispersion behaviour of aqueous alumina suspensions in the presence of polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO-PPO-PEO) type triblock copolymers. For this purpose alumina suspensions at various solids loadings were prepared using four different methods. These are: Method I: powder and water were stirred only; Method II: powder and water were stirred and ultrasonic treatment was applied; Method III: powder and water were stirred in the presence of block copolymers; Method IV: powder and water were stirred and ultrasonic treatment was applied in the presence of block copolymers. These suspensions were characterized by means of rheological measurements. Sedimentation and turbidity measurements were also conducted to support these results and to investigate the stability of these systems for longer times. Surface tension measurements were performed to investigate the adsorption behaviour of block copolymers onto alumina surface. It was found that the use of PEO-PPO-PEO type triblock copolymers improved the dispersion behaviour of aqueous alumina suspensions in the presence of ultrasonic treatment at low solids loadings. However their effect was not significant at high solids loadings and without ultrasonic treatment

Kısıtlar kuramı ile kapasite sorunlarının çözümü ve ek kapasite oluşturma : bir kargo firmasında uygulama.

06.03.2018 tarihli ve 30352 sayılı Resmi Gazetede yayımlanan “Yükseköğretim Kanunu İle Bazı Kanun Ve Kanun Hükmünde Kararnamelerde Değişiklik Yapılması Hakkında Kanun” ile 18.06.2018 tarihli “Lisansüstü Tezlerin Elektronik Ortamda Toplanması, Düzenlenmesi ve Erişime Açılmasına İlişkin Yönerge” gereğince tam metin erişime açılmıştır.Bayram, yılbaşı ve diğer tatil sezonları öncesinde kargo firmalarına olan taleplerde artış olduğu gözlenmektedir. Mevcut personel ve ekipmanlarla bu taleplere cevap verilmekte zorluk yaşandığından kısıtlar kuramı yaklaşımı ile gereksiz süreçler ortadan kaldırılarak sürecin hız kazanması sağlanacak ve bu şekilde taleplere cevap verebilmek mümkün olacaktır. Bu çalışmanın amacı kargo firmalarının bu yoğun dönemlerde ortaya çıkan ek talepleri optimizasyonu bozmayacak şekilde karşılayabilmeleri için alternatif planlar geliştirmektir. Bu çerçevede araştırmaya konu olan kargo firmasının yöneticileri ile yüz yüze görüşmeler sağlanmış, sürecin işleyişi ile ilgili derinlemesine araştırmalar yapılmıştır. Bu noktada gerçeğe en yakın değerlendirmeler yapılarak elde edilen araştırma sonuçları doğrultusunda bu firmaların ek talepleri karşılayabilmeleri için alternatif çözüm önerileri sunulması açısından bu çalışma diğer çalışmalardan farklılık göstermektedir. Sonuç olarak bu çalışmanın yoğun dönemlerde ek taleplere cevap vermekte zorluk yaşayan firmalara aydınlatıcı bir bakış açısı sunacağı düşünülmektedir.It is observed that customer demands from the cargo companies are increased before the Christmas and other holiday. Since it is difficult to meet these demands with available personel and equipment, acceleration of the process will be provided by eliminating unnecessary processes with theory of constraints approach and thereby it will be possible to meet demands. The purpose of this work is developing alternative plans without disturbing optimization for the additional demands arising from these busy periods of the cargo companies. In this context, it is provided with face to face interviews with managers of cargo company which is the subject of research, depth research on the functioning of the process has been done. At this point according to survey results, this study differs from other studies for offer alternative solutions to in order to meet additional demands. As a result, this work is expected to provide an enlightening perspective to companies having difficulty to meet additional demands during peak periods