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Search Results: 1 - 10 of 208783 matches for " Songu?l ERCAN "
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The Relationship Between Chronic Low Back Pain and Bone Mineral Density in Young and Middle-Aged Males
?zcan HIZ,Levent ED?Z,Songul ERCAN,Mehmet Arslan
Türkiye Fiziksel Tip ve Rehabilitasyon Dergisi , 2012,
Abstract: Objective: In this study, we investigated the relationship between chronic low back pain and bone mineral density in a young and middle-aged male population. Materials and Methods: A total of 104 male patients with chronic low back pain were enrolled in the study. All subjects completed the Oswestry Disability Index (ODI). Additionally, the intervertebral disc degeneration (DD) was graded according to the Thompson’s classification. After bone mineral density was measured the patients were divided into two groups: normal (n=50) and low (n=54) bone density groups. In addition, for comparing the data of patient sub-groups, bone mineral density was measured in 30 healthy subjects. Results: T and Z-scores of the L2 -L4 and the femoral neck were found to be significantly lower in the patient group compared to the control group. In the patient group, there was a positive correlation between the ODI score and the DD score. There were negative correlations between both the ODI score and the DD score and L2-L4 and femoral neck T scores and Z-score. The DD and ODI scores were found to be significantly higher in a patient with low bone density compared to a patient with normal bone density. Conclusion: We think that the low bone mineral density in young and middle-aged male patients with chronic lower back pain is related to disability and physical inactivity. Turk J Phys Med Re-hab 2012;58:294-8.
Use of ultrasound in food preservation  [PDF]
Songül ?ahin Ercan, ?i?dem Soysal
Natural Science (NS) , 2013, DOI: 10.4236/ns.2013.58A2002

Ultrasound is versatile and innovative technology due to its wide range of application and increase in knowledge and research studies. It is used in food industry for many purposes including analysis methods and food processings such as freezing, cutting, drying, tempering, homogenization, degassing, antifoaming, filtration and extraction. Ultrasound can be used as a promoter or alternative to food processing. There may be numereous advantages of using ultrasound for food processing such as effective mixing, increased mass transfer, reduced energy, reduced temperature and increased production rate. Due to the elimination of microorganisms and enzymes without destroying nutrients of foods, ultrasound can be used as an alternative method to thermal treatments in the food preservation. Additionally, low power ultrasound is thought to be an attractive nonthermal method due to overcome problems which occur during heat treatments such as physical and chemical changes, nutritional loss and change in organoleptic properties. This review summarizes mechanism, operation and latest potential applications of ultrasound in the food preservation.

ücret, Kariyer, Tatmini ve Performans Aras ndaki li kiler:Karaman Valili inde Bir Uygulama
Hasan GüL,Ercan OKTAY
Selcuk Universitesi Sosyal Bilimler Enstitusu Dergisi , 2009,
Abstract: This study is planned in order to clarify the relations between job satisfaction and performance with pay expectations andcareer opportunities of public servants and managers in state organizations. Today one of the vital problems in organizational andsocial life is the dissatisfaction employees feel from their work inevitably [requiring higher focusing] on human factor. Within thiscontext job satisfaction presents importance both for public and private sectors.Job satisfaction reflects the reactions of employees towards the work or [at least] to a part of the work. Job satisfaction existswhen employee expectations and what they face match with one another. Job satisfaction increasing the contentment of theemployee, additionally leads to his/her loyalty to his/her work, productivity, minimization of imperfect and faulty product, andturnover within the organization.Main demographic features employed in similar studies are the age, sex, education level, and seniority.Age: Age of persons is one significant feature effecting their attitude and behavior towards their work. Individuals areclassified as young, middle aged and old people based on their age terms. In literature the general idea is that different age termsaffect job satisfaction levels in different ways.Sex: Among the demographic features sex is the most attractive one subjected to vast research for in social life thedifferentiating function, statute and roles trusted to fit men and women reflects to work life.Education Level: This is an important factor affecting approach and expectations towards work life. Pay, job satisfaction,and working conditions are factors included within the expectations of individuals with higher education levels.Seniority: Seniority is an indication of the time spent at work. People working a long on the same job are expected to havehigher job satisfaction related to those just started.Marital Status: Job satisfaction levels of married employees are higher than that of single. In a study conducted by Y lmazand I k (2004: 100) “over 755 employees in 14 factories at the Manisa Organize Industry Zone the job satisfaction levels ofsingles are found to be far less than that of the bachelors”.Pay is one highly significant concern in work life affecting all concerning parties. While pay is an issue affecting income andlife standards for employees, it stands as an important cost factor in the case of employers and management.Job satisfaction is affected by pay, work itself, [quality of] supervision, work group and conditions. “Erdo an (1999: 236)referring to Sabuncuo lu and Tü
Ercan Oktay,Hasan GüL
Selcuk Universitesi Sosyal Bilimler Enstitusu Dergisi , 2003,
Abstract: Cocepts of charismatic leadersh p and organizational devotion have been examined particularly from the perspectives organizational behavior , sociology ,psychology and administration science for last three decade.In dhis study, concepts of charismatic leadership ,charismatic leadership theory of conger and kanungo, sentimental devotion and the factors affecting setimental devotion, charecteristics of charismatic leader and relationsh ps between charecteristic of charismatic leadership and emotional devotion have been examined.
Examination of Entrepreneurship from Humanistic Values Perspective  [PDF]
Ercan Yilmaz
Sociology Mind (SM) , 2013, DOI: 10.4236/sm.2013.33027

This study attempts to examine the influence of humanistic values people prefer on their entrepreneurship. The study is a qualitative study and the data were collected and analyzed using this method. Besides, relational screening model was used. The study group is composed of 482 students who were selected with random sampling method among students who attended various faculties at Selcuk University in 2012. In the study, Schwartz List of Values was used to measure individuals’ value preferences in their lives. Entrepreneurship Scale, which was developed by Yilmaz and Sünbül (2009), was used to measure their entrepreneurship tendency. In the study, it was revealed that there is a significant relation between humanistic values people prefer and entrepreneurship and, humanistic values explain entrepreneurship tendency.

Effects of ouabain on vascular reactivity
D.V. Vassallo,Songu-Mize E.,Rossoni L.V.,Amaral S.M.C.
Brazilian Journal of Medical and Biological Research , 1997,
Abstract: Ouabain is an endogenous substance occurring in the plasma in the nanomolar range, that has been proposed to increase vascular resistance and induce hypertension. This substance acts on the a-subunit of Na+,K+-ATPase inhibiting the Na+-pump activity. In the vascular smooth muscle this effect leads to intracellular Na+ accumulation that reduces the activity of the Na+/Ca2+ exchanger and to an increased vascular tone. It was also suggested that circulating ouabain, even in the nanomolar range, sensitizes the vascular smooth muscle to vasopressor substances. We tested the latter hypothesis by studying the effects of ouabain in the micromolar and nanomolar range on phenylephrine (PE)-evoked pressor responses. The experiments were performed in normotensive and hypertensive rats in vivo, under anesthesia, and in perfused rat tail vascular beds. The results showed that ouabain pretreatment increased the vasopressor responses to PE in vitro and in vivo. This sensitization after ouabain treatment was also observed in hypertensive animals which presented an enhanced vasopressor response to PE in comparison to normotensive animals. It is suggested that ouabain at nanomolar concentrations can sensitize vascular smooth muscle to vasopressor stimuli possibly contributing to increased tone in hypertension
üniversite rencilerine Y nelik Giri imcilik l e inin Geli tirilmesi
Ercan YILMAZ,Ali Murat SüNBüL
Selcuk Universitesi Sosyal Bilimler Enstitusu Dergisi , 2009,
Abstract: Introduction: Entrepreneur in English is a term applied to the type of personality who is willing to take upon herself or himself a new venture or enterprise and accepts full responsibility for the outcome. Entrepreneurship is often difficult and tricky, resulting in many new ventures failing. The word entrepreneur is often synonymous with founder. Most commonly, the term entrepreneur applies to someone who creates value by offering a product or service, by carving out a niche in the market that may not exist currently. Entrepreneurs tend to identify a market opportunity and exploit it by organizing their resources effectively to accomplish an outcome that changes existing interactions within a given sector. Entrepreneurship of the individuals have come into prominence today. Entrepreneurship includes production of good and services through bringing together the production factors such as labor, technology, capital, and natural resources. Entrepreneur is the one who seizes the opportunities and takes risks by bringing the production factors such as capital, natural resources and labor together to produce goods and services. Entrepreneurship is enunciatively of defending ourselves, having self confidence, expressing our feelings honestly and comfortably, and taking advantage of our own rights in a manner free of unnecessary anxiety by protecting equality in human relations. Recent years have witnessed a well-documented surge in entrepreneurship as a research theme. There is also wide acceptance of the legitimatization of entrepreneurship as an area of academic and research inquiry, on one hand, claims that research in entrepreneurship is fun and fascinating because of the richness of entrepreneurship that spans many disciplinary areas, theoretical perspectives and methodologies. It is, on the other hand, frustrating, as there is a lack of common understanding about entrepreneurship. As a result, although the field has been studied extensively and empirically, entrepreneurship research has been criticized because there is little consensus about the definitions of entrepreneurship and entrepreneurs. Universities need to provide a conducive learning and creative entrepreneurial environment in order to ‘see’ entrepreneurially-inclined individuals, since the environment can support entrepreneurial activity. In brief, in order to encourage and nurture entrepreneurially-inclined students, students need to be continuously exposed to entrepreneurial competencies and skills to recognize untapped business opportunities.Aims: The purpose of the study is to develop a
GeV Analysis of Mixed Morphology Supernova Remnants Interacting with Molecular Clouds
lün Ergin,E. Nihal Ercan
Physics , 2013, DOI: 10.1063/1.4772248
Abstract: The first remnants detected by the Fermi Gamma-ray Space Telescope were of the type of mixed-morphology supernova remnants interacting with molecular clouds. In this paper we are presenting preliminary results of the gamma-ray analysis of 4 selected mixed morphology remnants, G359.1-0.5, G337.8-0.1, G001.0-0.1, and G346.6-0.2, as well as G349.7+0.2, in the 0.2 - 300 GeV energy range from the data collected by Fermi Gamma-ray Space Telescope for 3 years. G359.1-0.5, G337.8-0.1, and G349.7+0.2 were all detected with significances above 5 sigma. The excess distribution of G359.1-0.5 shows extended gamma-ray emission, which coincides with the TeV gamma-ray source HESS J1745-303. G337.8-0.1 also shows an extended nature.
New Oscillation Results for Forced Second Order Differential Equations with Mixed Nonlinearities  [PDF]
Ercan Tun?, Adil Kaymaz
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.32023
Abstract: Some new oscillation criteria are given for forced second order differential equations with mixed nonlinearities by using the generalized variational principle and Riccati technique. Our results generalize and extend some known oscillation results in the literature.
Analysis of Teachers’ Attitude towards Internet Use: Example of Chemistry Teachers  [PDF]
Mehmet Tekerek, Orhan Ercan
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.33047
Abstract: Web technology is changing rapidly every day and the Internet has become a lifestyle for people all over the world. It is obvious that the life style of societies is in a process of change, as new habits are acquired. Even though Internet use is one of the new social habits, it is one of the most important factors that induce this change as regards the convenience it brings to communication and other areas. The widespread use of Internet implies the idea that it can also be more widely used for educational purpose. Since chemistry teachers have a very important function in education, the determination of teachers’ attitude towards Internet use is also important. In the literature it is possible to see many studies on teacher candidates’ attitude towards Internet use; however studies on appointed teachers’ attitude are not very common. In our study, which aims to determine the attitude of appointed chemistry teachers according to different variables, we used the Internet use attitude scale. Participant teacher’s attitude towards Internet use was analyzed and interpreted according to the variables of gender, years on the job, type of school at which they are teaching, and duration of their weekly Internet use. It was seen that a vast majority of the teachers have personal computers, they connect to Internet at home and have positive attitude towards Internet use. It was also seen that female teachers have more positive attitude than male teachers in use of Internet for social interaction and communication.
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