The investigation of even-even 114−120Xe^{114-120}Xe isotopes by the framework of IBA

In this work, the ground state, quasi beta and quasi gamma band energies $of ^{114,116,118,120}$ Xe isotopes have been investigated by using the both (IBM-1 and IBM-2) versions of interacting boson model (IBM). In calculations, the theoretical energy levels have been obtained by using PHINT and NP-BOS program codes. The presented results are compared with the experimental data in respective tables and figures. At the end, it was seen that the obtained theoretical results are in good agreement with the experimental data

Ağır deforme çekirdeklerde rotasyonel ve vibrasyonel durumların bazı örneklerinin incelenmesi

Bu tezin, veri tabanı üzerinden yayınlanma izni bulunmamaktadır. Yayınlanma izni olmayan tezlerin basılı kopyalarına Üniversite kütüphaneniz aracılığıyla (TÜBESS üzerinden) erişebilirsiniz.Ill SUMMARY Er and Yb nuclei are in the middle of the 150ÖZET Er ve Yb çekirdekleri 15

Effects of Computer-Assisted Instruction with Conceptual Change Texts on Removing the Misconceptions of Radioactivity

Training young scientists, enabling conceptual understanding in science education is quite important. Misconception is one of the important indications for whether the concepts are understood or not. The most important educational tools to remove misconceptions are conceptual change texts. In addition, one of the important methods to remove misconceptions is computer-assisted instruction. The goal of this study is to research the effects of the use of computer-assisted instruction (CAI), conceptual change texts (CCT), computer-assisted instruction with conceptual change texts (CAI+CCT), and use of traditional teaching method (TTM) on removing the misconceptions of science teacher candidates on the subject of radioactivity. Research sample was made of totally 92 students studying at four different groups of senior students in Celal Bayar University, Faculty of Education, Department of Science Education in 2011-2012 academic year. A different teaching method was used in each group. Experimental groups were randomly determined; in the first experimental group, computer-assisted instruction was used (23 students); in the second experimental group, conceptual change texts were used (23 students); in the third experimental group, computer-assisted instruction with conceptual change texts were used (23 students); and the fourth group, on which traditional education method was used, was called control group (23 students). Two-tier misconception diagnostic instrument, which was developed by the researcher, was used as data collection tool of the research. “Nonequivalent Control Groups Experimental Design” was used in this research in order to determine the efficiency of different teaching methods. Obtained data were analyzed by using SPSS 21.0. As a result of the research, it was determined that methods used on experimental groups were more successful than traditional teaching method practiced on control group in terms of removing misconceptions on radioactivity

The Investigation of 130,132Te by IBM-2

In this study, we determined the most appropriate Hamiltonian that is needed for present calculations of nuclei in the A 130 region by interacting boson model. The second version of interacting boson model (IBM-2) has been widely used for describing the quadrupole collective states of the medium heavy nuclei. The proton and neutron variables are distinguished when this version of the model is applied. Because it is important to describe the proton and neutron variables explicitely. Using the best-fitted values of parameters in the Hamiltonian of the IBM-2, we have calculated energy levels and B(E2) values for 130,132Te. The results were compared with the previous experimental and theoretical data and it is observed that they are in good agreement. Some B(E2) values that are still not known so far are stated and the set of parameters used in these calculations is the best approximation that has been carried out so far. It has turned out that the interacting boson approximation (IBA) is fairly reliable for the calculation of spectra in the entire set of such Te isotopes

Effects of computer-assisted instruction with conceptual change texts on removing the misconceptions of radioactivity

Training young scientists, enabling conceptual understanding in science education is quite important. Misconception is one of the important indications for whether the concepts are understood or not. The most important educational tools to remove misconceptions are conceptual change texts. In addition, one of the important methods to remove misconceptions is computer-assisted instruction. The goal of this study is to research the effects of the use of computer-assisted instruction (CAI), conceptual change texts (CCT), computer-assisted instruction with conceptual change texts (CAI+CCT), and use of traditional teaching method (TTM) on removing the misconceptions of science teacher candidates on the subject of radioactivity. Research sample was made of totally 92 students studying at four different groups of senior students in Celal Bayar University, Faculty of Education, Department of Science Education in 2011-2012 academic year. A different teaching method was used in each group. Experimental groups were randomly determined; in the first experimental group, computer-assisted instruction was used (23 students); in the second experimental group, conceptual change texts were used (23 students); in the third experimental group, computer-assisted instruction with conceptual change texts were used (23 students); and the fourth group, on which traditional education method was used, was called control group (23 students). Two-tier misconception diagnostic instrument, which was developed by the researcher, was used as data collection tool of the research. "Nonequivalent Control Groups Experimental Design" was used in this research in order to determine the efficiency of different teaching methods. Obtained data were analyzed by using SPSS 21.0. As a result of the research, it was determined that methods used on experimental groups were more successful than traditional teaching method practiced on control group in terms of removing misconceptions on radioactivity

Radyoaktivite Konusunda Kavram Yanılgılarını Belirlemeye Yönelik İki Aşamalı Bir Teşhis Testinin Geliştirilmesi

Öz: Bu çalışmanın amacı, radyoaktivite konusunda kavram yanılgılarını belirlemeye yönelik iki aşamalı bir teşhis testinin geliştirilmesi ve bu testin geçerlik ve güvenirlik çalışmasının yapılmasıdır. İki aşamalı testler kavram yanılgılarını belirlemede mülakatların ve çoktan seçmeli testlerin olumsuzluklarını en aza indirerek etkili bir ölçme aracı olma özelliğine sahiptir. İki aşamalı testin geliştirilmesi için, içeriğin belirlenmesi, öğrencilerin yanlış anlamaları hakkında bilgi edinilmesi ve teşhis testinin geliştirilmesi adlı üç ana aşamadan oluşan bir yöntem kullanılmıştır. Ayrıca alanyazına uygun geçerlik ve güvenirlik hesaplama yöntemleri kullanılmıştır. Araştırmanın çalışma grubunu bir devlet üniversitesinin fen bilgisi öğretmenliği programında okuyan 244 öğretmen adayı oluşturmaktadır. Madde ve test analizleri sonunda testin güvenirliği, maddelerin güçlük ve ayırt edicilik indeksleri tespit edilmiştir. Testin tümünün ortalama madde güçlük indeksi 0,45, birinci aşamanın ortalama madde güçlük indeksi 0,47 ve ikinci aşamanın ortalama madde güçlük indeksi ise 0,49’dur. Testin birinci aşaması için KR-20 güvenirlik katsayısı 0,68, testin ikinci aşaması için KR-20 güvenirlik katsayısı ise 0,70 bulunmuştur. Geçerlik çalışması için kapsam ve yapı geçerliği çalışması yapılmıştır. Yapı geçerliği için hipotez testi yöntemi kullanılmış ve testin yapı geçerliğine sahip olduğu belirlenmiştir. Çalışma sonucunda radyoaktivite konusunda kavram yanılgılarını belirlemeye yönelik kullanılabilecek olan 18 maddeden oluşan iki aşamalı bir teşhis testi elde edilmiştir. Anahtar Kelimeler: Radyoaktivite, kavram yanılgıları, iki aşamalı test</p

Radyoaktivite Konusunda Kavram Yanılgılarını Belirlemeye Yönelik İki Aşamalı Bir Teşhis Testinin Geliştirilmesi

Öz: Bu çalışmanın amacı, radyoaktivite konusunda kavram yanılgılarını belirlemeye yönelik iki aşamalı bir teşhis testinin geliştirilmesi ve bu testin geçerlik ve güvenirlik çalışmasının yapılmasıdır. İki aşamalı testler kavram yanılgılarını belirlemede mülakatların ve çoktan seçmeli testlerin olumsuzluklarını en aza indirerek etkili bir ölçme aracı olma özelliğine sahiptir. İki aşamalı testin geliştirilmesi için, içeriğin belirlenmesi, öğrencilerin yanlış anlamaları hakkında bilgi edinilmesi ve teşhis testinin geliştirilmesi adlı üç ana aşamadan oluşan bir yöntem kullanılmıştır. Ayrıca alanyazına uygun geçerlik ve güvenirlik hesaplama yöntemleri kullanılmıştır. Araştırmanın çalışma grubunu bir devlet üniversitesinin fen bilgisi öğretmenliği programında okuyan 244 öğretmen adayı oluşturmaktadır. Madde ve test analizleri sonunda testin güvenirliği, maddelerin güçlük ve ayırt edicilik indeksleri tespit edilmiştir. Testin tümünün ortalama madde güçlük indeksi 0,45, birinci aşamanın ortalama madde güçlük indeksi 0,47 ve ikinci aşamanın ortalama madde güçlük indeksi ise 0,49’dur. Testin birinci aşaması için KR-20 güvenirlik katsayısı 0,68, testin ikinci aşaması için KR-20 güvenirlik katsayısı ise 0,70 bulunmuştur. Geçerlik çalışması için kapsam ve yapı geçerliği çalışması yapılmıştır. Yapı geçerliği için hipotez testi yöntemi kullanılmış ve testin yapı geçerliğine sahip olduğu belirlenmiştir. Çalışma sonucunda radyoaktivite konusunda kavram yanılgılarını belirlemeye yönelik kullanılabilecek olan 18 maddeden oluşan iki aşamalı bir teşhis testi elde edilmiştir. Anahtar Kelimeler: Radyoaktivite, kavram yanılgıları, iki aşamalı tes

Preliminary results of Sr/Ca ratio study of teeth samples by photoactivation analysis

In this paper, we have performed Photoactivation Analysis (PAA), a non-destructive method, which is used to determine elemental concentration of any sample. This paper presents the first use of this method in medical sciences in Turkey. The method was applied to the determination of Sr/Ca ratios in teeth. The collected teeth samples and standards (SrO and CaCO3) have been irradiated for a fixed time interval with high energy photons. The photons were generated by a clinical linear accelerator (cLINAC). The photon end-point energy was 18 MeV. The energy and the time interval were sufficient to achieve good activation. Afterward, the samples and standards have been analysed with gamma spectroscopic analysis by using an HPGe detector system. By analysing many samples, a database of Sr/Ca ratios will be created at Nuclear Research and Application Center (NUBA). In this paper we present a small subset of the already analysed data as an example of our capabilities and goal. We hope to set an example for future studies

Preliminary results of Sr/Ca ratio study of teeth samples by photoactivation analysis

In this paper, we have performed Photoactivation Analysis (PAA), a non-destructive method, which is used to determine elemental concentration of any sample. This paper presents the first use of this method in medical sciences in Turkey. The method was applied to the determination of Sr/Ca ratios in teeth. The collected teeth samples and standards (SrO and CaCO3) have been irradiated for a fixed time interval with high energy photons. The photons were generated by a clinical linear accelerator (cLINAC). The photon end-point energy was 18 MeV. The energy and the time interval were sufficient to achieve good activation. Afterward, the samples and standards have been analysed with gamma spectroscopic analysis by using an HPGe detector system. By analysing many samples, a database of Sr/Ca ratios will be created at Nuclear Research and Application Center (NUBA). In this paper we present a small subset of the already analysed data as an example of our capabilities and goal. We hope to set an example for future studies