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The effect of teaching practice course on pre-service Science teachers' readiness for e-learning
Get PDFEğitim Bilimleri Enstitüsü, Matematik ve Fen Bilimleri Eğitimi Ana Bilim Dalı, Fen Bilgisi Eğitimi Bilim DalıBu araştırma, Fen Bilgisi öğretmeni adaylarının e-öğrenme hazırbulunuşluluk düzeylerini ve bunun belirleyicisi olan bilgisayar öz yeterliği, internet öz yeterliği ve çevrim içi iletişim öz yeterliği, öğrenen kontrolü ve kendi kendine öğrenme ile e-öğrenmeye karşı güdülenme düzeylerine öğretmenlik uygulaması sürecinin etkisini belirlemeyi amaçlamaktadır. Çalışmada karma yöntem kullanılmıştır. Nicel araştırmanın çalışma grubunu Niğde Ömer Halisdemir Üniversitesinde son sınıfta öğrenim gören 30 fen bilgisi öğretmeni adayı oluşturmaktadır. Yurdugül ve Demir (2017) tarafından hazırlanan Üniversite Öğrencilerinin E-öğrenmeye Hazırbulunuşluğu Ölçeği, Öğretmenlik Uygulaması 1 dersi öncesi ve sonrasında uygulanmıştır. Nitel araştırmaya kaynak olarak uzman görüşlerine göre geliştirilen soru formu aynı sınıftaki 34 fen bilgisi öğretmen adayına ölçeğin ön uygulanmasında yöneltilmiştir. Araştırmaya göre, öğretmenlik uygulaması fen bilgisi öğretmen adaylarının e-öğrenmeye hazırbulunuşluluğun internet öz yeterliliği ve kendi kendine öğrenme düzeylerinde farklılaşmaya neden olmuştur. Fen bilgisi öğretmen adaylarının e-öğrenme için kullandıkları elektronik cihazlar ve gelişen teknoloji ile daha olumlu tutum içinde oldukları belirlenmiştir. Anahtar Kelimeler: E-öğrenme, E-Öğrenme Hazırbulunuşluluğu, İnternet Öz-Yeterliği, Kendi Kendine Öğrenme.This research aims to determine the e-learning readiness levels of science teacher candidates and the determinant of this, computer self-efficacy, internet self-efficacy and online communication self-efficacy, learner control and self-learning and motivation towards e-learning levels to determine the impact of the teaching practice process. The mixed method was used in the study. The particiopants of the quantitative research consists of 30 science teacher candidates who are studying at Niğde Ömer Halisdemir University in their final year. The E-learning Readiness Scale of University Students prepared by Yurdugul and Demir (2017) was applied before and after the Teaching Practice 1 course. The question form, which was developed according to expert opinions as a source for qualitative research, was directed to 34 science teacher candidates in the same class in the first application of the scale. According to the research, teaching practice has caused a differentiation in the Internet self-efficacy and self-learning levels of e-learning readiness of science teacher candidates. It has been determined that science teacher candidates have a more positive attitude with the electronic devices and developing technology they use for e-learning. Key Words: E-learning, E-Learning Readiness, Internet Self-Efficacy, Self-Learning
FINANCIAL INTEGRATION AND EXPORT ASSOCIATION OF TÜRKİYE WITH OECD COUNTRIES
Get PDFFinancial integration of countries is constantly increasing with their mutual trade. In other words, rising of partnership on international market ensure higher financial integration over time. Increasing of financial integration among countries also will be reason of raising the similarity and bilateral agreements of these countries. This paper shows that what countries have tendency to act together in terms of financial integration with Türkiye in the designated period. For this purpose, the stock market indexes of Belgium, France, Germany, Israel, Italy, Spain, Switzerland, and the United Kingdom those are top trading partner of Türkiye and members of the Organization for Economic Co-operation and Development (OECD) selected for this research. Gregory - Hansen (1996) cointegration test used to find the financial integration between the stock market indices of selected countries and Türkiye. The result of test method shows that the highest correlation is with Germany after Israel, and the second line is for the United Kingdom. According to result of the cointegration test, although Türkiye acts together with all selected countries, Germany stand on different point. This could explain with Germany is the major partner of Türkiye in terms of mutual trade
Evaluating Climate Change Knowledge, Attitudes, and Behaviors (KAB) in Agricultural Sciences and Technologies Education
Get PDFThe aim of this study is to determine the levels of knowledge, attitudes, and behaviors (KAB) regarding climate change among undergraduate and postgraduate students enrolled into the Agricultural Sciences and Technologies in Niğde province. The research involved 200 students at both undergraduate and postgraduate levels, encompassing Turkish and English speakers. Research data were obtained through a personal information form designed to assess students' knowledge levels, behaviors, and attitudes toward climate change. The survey consists of four sections measuring students' demographic characteristics, behavioral traits related to climate change, attitudes toward climate change, and knowledge about the subject. Descriptive statistics, including percentages for categorical variables and mean ± standard deviation for continuous variables, were used in data analysis to transparently illustrate the distribution of background variables such as age, gender, and education. Focusing on knowledge about climate change, 66% of students indicated that they attribute climate change to human activities. It was observed that students' awareness of environmental issues, specifically recycling, is at a rate of 22.5%. In conclusion, when examining the knowledge, attitudes, and behaviors of students are studied Agricultural Sciences and Technologies regarding climate change, the study highlights the need for more effective education and awareness programs on environmental issues
Pediatric Head Injuries Occur During the Play Childhood Period of 3-6 Years: A Sample from the South of Türkiye
Get PDFAim: Pediatric head traumas (HT) are of significant concern due to their potential for high mortality rates, which are influenced by the clinical progression of traumatic brain injury (TBI). HT poses a substantial risk of morbidity and mortality across all pediatric age groups, underscoring the importance of effective clinical management and follow-up procedures. The current study aims to evaluate the epidemiology, causes, and clinical outcomes of head injuries during childhood play between the ages of 3 and 6. Material and Method: Focused on pediatric patients aged 3-6 years who were admitted to the emergency department (ED) for HT, and required consultation from a neurosurgeon. Data collected included patients’ demographics, trauma etiology, cranial examination findings, laboratory results upon admission, cranial computed tomography findings, classification of TBI, treatment administered, and clinical progression. Results: The median Glasgow Coma Scale (GCS) scores were found to be significantly lower in the group with intraparenchymal injury compared to the group without intraparenchymal injury (p=0.008). The group with intraparenchymal injury exhibited a higher than expected occurrence of moderate TBI (p=0.012). Females exhibited significantly lower mean rank scores for age compared to males (p=0.032). Patients hospitalized for HT had significantly lower GCS scores than those discharged (p=0.001). There is a higher prevalence of moderate TBI than expected in the group of hospitalized patients (p=0.008). The mortality rate among hospitalized patients was 5.6%, with lower GCS scores and hyperglycemia upon admission significantly associated with fatalities (p=0.015, p=0.045). Conclusion: Identification and management of moderate TBI are imperative in children presenting to the ED with HT during early childhood play. Children with intraparenchymal injury should be hospitalized. Additionally, hyperglycemia in pediatric HT patients may signify high-energy trauma
The perceived effect of digital transformation and resultant empowerment on job performance of employees in the fitness family business
Get PDFPurposeThe impact of technological transformations in all sectors is undeniably significant, especially in fitness family business. The aim is to examine the digital transformation perceptions of fitness centre employees and the effects of perceived empowerment on their job performance in family business in Turkey.Design/methodology/approachThe sample was 334 fitness centre employees. Four variables were evaluated (digital transformation, meaning competence, self-determination and job performance), and PLS-SEM was used.FindingsThe digital transformation process in the fitness sector can be considered as an important factor in terms of creating new business ventures. Our results showed that digital transformation perceived by family business employees had a significantly influence on the meaning competence of the employees. Also, the meaning competence of employees was a mediator between the digital transformation and job performance.Practical implicationsManagers of family businesses must take into account that an appropriate digital transformation of their products and/or services has an impact on the meaning competence of their employees. Thus, through increased competence in employee performance, the digitization of family business fitness will lead to higher employee performance and productivity.Originality/valueThis study innovates by linking digital transformation as a factor influencing the coach's own motivation and self-perceived competence in the use of technology to their job performance.European Union [MCIN/AEI/10.13039/501100011033]We would like to thank all the participants who participated in the study. The publication is part of grant JDC2022-048886-I, funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR
Experimental study on the flow field geometry of the PEM fuel cell bipolar plates: The effects of various shaped blocks embedded in serpentine pattern on cell performance
Get PDFThe flow field pattern is crucial in many aspects such as cost-efficiency (in terms of excessive fuel consumption), water management on the cathode side, and achieving a high cell performance. The studies on the reconnaissance of much more effective flow field design have been continuing for years. As a matter of fact, it may be succeeded with some manipulations on the flow area. The current research proposes to investigate the effects of blocks in various shapes and positions on the net power output by changing the shape of the channels in the flow field (FF). For this reason, semicircular and triangular blocks were machined on the serpentine channels and their short-term performances were compared with the conventional serpentine pattern. In addition to the related new FF designs, performance evaluation was made by using nickel foam placed to fill the inner part of the serpentine FF. First, ultimate operating conditions were optimized with the traditional serpentine FF. Then, the performance outputs of the proposed FF designs were compared under the same conditions assigned in the previous section. The single-cell performance tests yielded that the highest power density was ensured with nickel foam (NF)-serpentine FF with 0.267 W/cm2. This increment corresponds to a 38 % enhancement in the power output when compared to the classical serpentine-type FF. Triangular (T) and semicircular (S) obstacles increased the performance significantly. Each manipulation on the traditional serpentine FF affected the power output positively, essentially. The pattern structures of the diagonal semicircle (DS) and diagonal triangular (DT) FFs reduced both water evacuation ability and performance increase rate. NF-serpentine FF contact highly decreased the ohmic resistance level of the cell when compared to the other designs according to the impedance (EIS) measurements. In addition, a correlation was observed between the performance and pressure drop test results. The highest-pressure drop was recorded with NF-serpentine FF (4.225 kPa) whereas the lowest is conventional serpentine FF (0.55 kPa). Traditional serpentine pattern is famous for with high-pressure drop structure. Consecutively, the pressure drop tests proved that the manipulations increased the pressure level of the system directly
The effect of adrenaline and trypan blue used during cataract surgery on anatomical and functional outcomes in pseudoexfoliation syndrome patients
Get PDFPurposeTo evaluate the effect of the intracameral adrenaline and trypan blue used during cataract surgery on corneal endothelial parameters in pseudoexfoliation syndrome (PEX) patients.MethodsThe patients were divided into four groups according to intraoperative use of agents during cataract surgery: intracameral adrenaline (1/10,000, 0.1 ml) (group 1), trypan blue (0.6 mg/ml, 0.1 ml) (group 2), combination of adrenaline and trypan blue (group 3) and none (group 4).ResultsPreoperative ECD, CV, HEX and CCT parameters were similar between the groups. A mean loss of 12.7% in ECD was observed at the postoperative third months compared to the preoperative. In group 3, ECD was found to be lower in the postoperative third months compared to the preoperative (p = 0.014). In the other groups, no statistically significant difference was found in preoperative and postoperative comparisons.ConclusionIn conclusion, the utilization of intracameral adrenaline or trypan blue did not cause a significant difference in corneal endothelium in PEX patients. However, their combined use may have a negative effect on endothelial cell density. In a cataract surgery performed in the presence of PEX, the increased likelihood of endothelial damage should be taken into consideration, and appropriate precautions should be taken preoperatively and intraoperatively
The presumption of innocence in the framework of the European Court of Human Rights decisions
Get PDFSosyal Bilimler Enstitüsü, Kamu Yönetimi Ana Bilim DalıUluslararası mevzuatta hakları en geniş haliyle ele alması ve AİHM tarafından da yargı ve yaptırım açısından desteklenmesiyle bir rehber görevi gören AİHS'nin amacı da diğer ulusal ve uluslararası birçok metin gibi insan haklarını güvence altına almaktır. Bu nedenledir ki; içeriğinde bireyi çeşitli açılardan korumayı hedefleyen birçok hüküm bulundurarak, süjeyi yalnızca başka kişilerden değil devletin kurum ve kuruluşları karşısında da korunması teminatını vermektedir. Söz konusu hükümlere bir örnek olarak herhangi bir cezai veya idari muhakeme sürecinde adil, bağımsız ve tarafsız olma teminatı veren adli makamlarda sürecin işlemesini öngören Adil yargılanma hakkı verilebilir. AİHS 6.md'de yer alan adil yargılanma hakkı kişiyi muhakeme sürecinde yargı erkleri karşısında korumasının yanı sıra içeriğinde birçok alt ilkeyi de barındırması açısından temel bir hak görevi üstlenmektedir. Adil yargılanma hakkının ayrılmaz bir parçası olarak ele alabileceğimiz masumiyet karinesi; kişinin yargılama sürecinde kesin bir mahkeme kararı ile suçu sabit oluncaya kadar suçsuz olarak kabul edilmemesi şeklinde tanımlanabilir. Karine özünde suç isnadı altında bulunan kişinin muhakeme sürecinde başka kamuoyu ve kurumlar karşısında ön yargıya mahal vermeyecek şekilde yargılamasının yapılmasını, süreç sonunda topluma tekrardan karışması durumunda ötekileştirilmemesini güvence altına almaktadır. AİHS md.6/2'de yer alan masumiyet karinesi ilkesi, anayasamızda ise "Suçluluğu hükmen sabit oluncaya kadar, kimse suçlu sayılamaz." ibaresi ile 38. md'de yerini almaktadır. Bu çerçevede uluslararası hukukta adil yargılanma hakkının bir unsuru olarak değerlendirilen karinenin bizim kanunlarımızda bir hüküm olarak yerini alması karinenin bir ilke mi yoksa hak mı olduğu tartışmasını yaratmaktadır. Bu tartışmanın yanı sıra masumiyet karinesinin karine olarak değerlendirilip değerlendirilemeyeceği, ya da suçsuzluk karinesi olarak terminolojide kullanılıp kullanılamayacağı gibi birçok tartışmanın da konusunu oluşturmaktadır.The purpose of the ECHR, which serves as a guide as it deals with rights in the broadest form in international legislation and is supported by the ECHR in terms of jurisdiction and sanctions, is to secure human rights, like many other national and international texts. This is why; By containing many provisions aiming to protect the individual from various aspects, it guarantees the protection of the subject not only from other people but also from the institutions and organizations of the state. An example of such provisions is the right to a fair trial, which requires that the process be processed by judicial authorities that guarantee fairness, independence and impartiality in any criminal or administrative proceedings. The right to a fair trial, stated in Article 6 of ECHR, not only protects the individual against the judicial powers during the trial process, but also serves as a fundamental right, as it includes many sub-principles. The presumption of innocence, which we can consider as an integral part of the right to a fair trial; It can be defined as the fact that a person is not considered innocent until his guilt is proven by a final court decision during the trial process. In essence, the presumption ensures that the person accused of a crime will be tried in a way that will not cause prejudice against other public opinion and institutions during the trial process, and that he will not be marginalized if he re-enters society at the end of the process. The principle of presumption of innocence in ECHR Article 6/2 is stated in our Constitution as "No one can be considered guilty until proven guilty." It is also included in Article 38 with the phrase: In this context, the fact that the presumption, which is considered an element of the right to a fair trial in international law, has taken its place as a provision in our laws creates a debate about whether the presumption is a principle or a right. In addition to this debate, it is also the subject of many debates, such as whether the presumption of innocence can be considered as a presumption or whether it can be used in terminology as the presumption of innocence
Investigation of the effects of jasmonic acid and salicylic acid applications on rosmatrinic acid production in rosemary (Rosmarinus officinalis L.) in vitro conditions
Get PDFFen Bilimleri Enstitüsü, Biyoteknoloji Ana Bilim DalıBitkiler, ilaç endüstrisinde kullanılan doğal bileşikler için ana kaynaktır. Rosmarinik asit (RA) antiviral, antibakteriyel, anti-inflamatuar, anti-alerjik ve anti-kanser aktiviteleri olan doğal bir antioksidan fenolik bileşiktir. Bu tez çalışmasında, tıbbi açıdan büyük önem arz eden Rosmarinus officinalis L. (biberiye) bitkisinin, bitkilerde önemli iki sinyal molekülü olan salisilik asit ve jasmonik asit uygulamaları ile RA üretimi üzerine etkilerinin araştırılması amaçlanmıştır. Bu kapsamda ilk aşamada farklı sterilizasyon yöntemleri uygulanarak uygun sterilizasyon yöntemi belirlenmiştir. Daha sonra biberiye bitkilerinin yaprak eksplantlarından kallus elde edilmiştir. Elde edilen kalluslar alt kültürde farklı dozlarda salisilik asit ve jasmonik asit ortamında geliştirilmiştir. Kalluslardaki kallus indüksiyon frekansı ölçülmüştür ve RA birikimi incelenmiştir. Tüm uyarıcı konsantrasyonları karşılaştırıldığında en iyi kallus indüksiyon frekansı % 84 ile 50 mM salisilik asit uygulamasında ölçülmüştür. Aynı zamanda en fazla RA miktarı yine 50 mM salisilik asit uygulamasında 0,753 mg/g t.a. olarak belirlenmiştir. Elde edilen veriler, salisilik asit ve jasmonik asit gibi uyarıcı ilavesi ile biberiye yaprak eksplantları kullanılarak oluşturulan in vitro kültürlerin RA üretimi için alternatif bir yöntem olarak başarıyla kullanılabileceğini göstermiştir.Plants are the main sources of natural compounds used in the pharmaceutical industry. Rosmarinic acid (RA) is a natural antioxidant phenolic compound with antiviral, antibacterial, anti-inflammatory, antiallergic, and anticancer activities. In this thesis study, it was aimed to investigate the effects of salicylic acid and jasmonic acid, two important signaling molecules in plants, on the production of rosmarinic acid in Rosmarinus officinalis L. (rosemary), which is of great medical importance. In the first stage, different sterilization methods were applied and the appropriate sterilization method was determined. Then, callus was obtained from leaf explants of rosemary plants. The callus obtained were grown in subculture in different doses of salicylic acid and jasmonic acid medium. The callus induction frequency was measured and rosmarinic acid accumulation was analysed. When all elicitor concentrations were compared, the best callus induction frequency was 84% with 50 mM salicylic acid treatment. At the same time, the highest amount of RA was determined as 0.753 mg/g t.a. in 50 mM salicylic acid treatment. The data obtained showed that in vitro cultures using rosemary leaf explants with the addition of elicitors such as salicylic acid and jasmonic acid can be successfully used as an alternative method for RA production
Joint Channel Estimation and Localization in RIS Assisted OFDM-MIMO System
Get PDF6th Global Power, Energy and Communication Conference (GPECOM) -- JUN 04-07, 2024 -- Budapest, HUNGARYReconfigurable Intelligent Surfaces (RISs) are expected to become one of the enabling technologies in the development of the sixth generation (6G) smart radio environment, where services such as localization and sensing are going to be ubiquitous and an integral part of the system. However, achieving localization in a dense urban environment is a challenging task. Therefore, this study considers joint channel and localization estimation in a RIS-assisted orthogonal frequency division multiplexing multiple-input multiple-output (OFDM-MIMO) system operating in a dense urban environment, where only Non-Line-of-Sight (NLoS) multipath components are available. The channel estimation is based on the channels being sparse in the spatial and angular domains and having only a few Angles of Arrival (AoA) and Angles of Departure (AoD), thus the channel estimation becomes a sparse signal recovery problem that can be solved with compressive sensing algorithms. The study implements Simultaneous Orthogonal Matching Pursuit (SOMP) to obtain AoA and AoD. The time delay parameters are obtained by correlating OFDM subcarriers with a search matrix. A localization estimation algorithm based on linearization of the estimated geometric parameters is adopted. The results of the study show that for a channel consisting of 3 NLoS paths, location estimation in the range of decimeters is possible.IEE