Browsing by Subject "Mathematics"
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Item Open Access Different goals, different pathways to success: Performance-approach goals as direct and mastery-approach goals as indirect predictors of grades in mathematics(Elsevier, 2018) Mouratidis, A.; Michou, Aikaterini; Demircioğlu, A. N.; Sayıl, M.In this study, we aimed to investigate the different routes through which perceived goal structures, and in turn mastery-approach and performance-approach goals in mathematics, predict subsequent academic performance. Path analyses with a sample of Turkish adolescents (N = 369; 49.1% males; Mage = 16.67 years, SD = 1.85) revealed two distinct paths. After controlling for mid-year grades, we found perceived mastery goal structures to relate (positively) to mastery-approach goals, which in turn positively predicted end-year grades through challenge seeking. In contrast, perceived performance goal structures related positively to both performance-approach and performance-avoidance goals with the former directly predicting higher end-year grades, and the latter being related negatively to challenge seeking. These findings imply that there may exist different paths that can predict academic performance.Item Restricted Ersan Akyıldız'ın gözünden ODTÜ Matematik Bölümü(Bilkent University, 2020) Köksal, Bilge; Eken, Demir; Kırtışoğlu, Mehmet; İpek, AyşenazODTÜ Matematik Bölümünde öğretim üyeliği ve bölüm başkan yardımcılığı yapmış olan Prof. Dr. Ersan Akyıldız'ın gözünden, yaşanan siyasi ve ekonomik zorluklar, ODTÜ'nün matematik eğitimini diğer üniversitelerin matematik eğitimlerinden ayıran unsurlar incelenmiştir. Bu çalışmada ODTÜ Matematik Bölümünün 1956-1990 aralığı araştırılmıştır. ODTÜ Matematik Bölümünün Türk matematiğine katkılarının ortaya koyulması hedeflenmiştir.Item Open Access Ethics and aesthetics in the philosophy of Alain Badiou(Bilkent University, 2005) Yalım, P. BurcuThe supposed impossibility of achieving a form of rational agency for action is the prevailing critique against contemporary theories of representaion. Alain Badiou’s philosophy appears to solve this problem by assigning a subject-form and not a substantial subject as such as rational agency and by filling in the space of truth left empty by the declaration of the end of philosophy with a new universality of truth subject to temporality. Yet this apparent duality of form and content pertaining to subjectivity, and the manner in which time and history are constructed in Badiou’s theory of truth signal the return of a certain transcendence, and the very abolishment of the time which appears to be thus constructed. This thesis aims to make a critical discussion on Alain Badiou’s philosophy through his fifteen theses on art, as the return of classical philosophy and to rise the ethical stakes involved in putting forth a philosophy based upon truth.Item Open Access Fine structure of mass and charge distribution in low energy fission(Akademiai Kiado Rt., 1992) Erten, H. N.; Aras, N. K.Studies of finer details in mass and charge distribution fission leads to a better understanding of the fission process. Experimental determination of independent and cumulative yields using radiochemical techniques as well as mass spectrometers and fission product recoil separators form the basis of such studies. It has been established that closed shells as well as an even number of nucleons influence both mass and charge distributions. The magnitudes of these effects may be estimated from existing experimental yield data and various fission models. Using our measurements of several fission yields and those existing in the literature we have calculated even-odd proton and neutron effects for various low energy fissioning systems. Where enough data existed, direct calculations were made, whereas for other cases the Zp-model of WAHL has been used. It is found that the even-odd proton effect is well established and pronounced in thermal neutron fission of235U and233U. Lesser effects were found for reactor neutron induced fission of232Th, thermal neutron fission of239Pu and spontaneous fission of245Cm and249Cf. No effect seems to exist in the thermal neutron fission of241Pu and the spontaneous fission of252Cf. The even-odd neutron effect is found to be much lower than the corresponding proton effect in235U and233U fissions and is nonexistent in the rest of the fissioning systems.Item Restricted Gödel's theorem and postmodern theory(1995) Thomas, David WayneItem Open Access Impact of sustained professional development in STEM on outcome measures in a diverse urban district(Routledge, 2016) Capraro, R. M.; Capraro, M. M.; Scheurich, J. J.; Jones, M.; Morgan, J.; Huggins, K. S.; Corlu, M. S.; Younes, R.; Han S.Sustained professional development can support STEM (Science, Technology, Engineering, and Mathematics) reform. The authors describe a 3-year study of sustained professional development for 3 diverse urban schools across the salient factors of fidelity of implementation of project-based learning, development of professional learning communities, and student achievement. Qualitative and quantitative data were collected. The students who experienced the greatest fidelity of implementation exhibited the greatest gains (d = 1.41-2.03) on standardized test scores, while those with the lowest fidelity of implementation exhibited negative gains (d = -0.16 to -0.08). Qualitative data indicated teachers perceived there were multiple benefits from the implementation of project-based learning.Item Open Access Introduction (Universitätsverlag Göttingen, 2006) Lemmermeyer, Franz; Roquette, Peter; Lemmermeyer, Franz; Roquette, PeterItem Open Access A longitudinal study of the relationship between mathematics and science: the case of Texas(International Journal of Contemporary Educational Research, 2015-07) Cetin, S. C.; Corlu, M. S.; Capraro, M. M.; Capraro, R. M.This study aims to investigate the relationship between mathematics and science scores acquired from the Texas Assessment of Knowledge and Skills (TAKS) examination, and how this relationship changed over the years. The participants were from an independent school district in a northern Texas town. Criterion sampling was used in this study to assure that students who were selected had four TAKS mathematics scores from 2006 through 2010 and two TAKS science scores for 2006 and 2010: 116 students met the criteria. The relationship between two subjects was investigated by analyzing the correlation between students’ mathematics and science scores of 2006 and 2010. Growth curve models were used to reveal whether there was growth on students’ mathematics and science scores over the years. A strong correlation was found between mean mathematics and mean science scores in the whole sample, and a greater growth was found in mathematics than it did for science.Item Restricted Matematik nasıl matematik oldu?(1981) Tepedelenlioğlu, NazifItem Restricted Numeracy(1990) Steen, Lynn ArthurItem Open Access Numerical diffraction synthesis of 2-D quasioptical power splitter(IEEE, 2007-06) Nosich, A. A.; Gandel, Y. V.; Magath, T.; Altıntaş, AyhanA new diffraction synthesis method is proposed for computing quasioptical 2-D reflector beam splitters in the E-polarization case. It is a combination of a numerical gradient (NG) optimization and an efficient analysis method based on singular integral equations (SIEs) which are discretized using a fast and accurate numerical Nystrom-type method of discrete singularities (MDS). The results of design are shown for a 40-quasioptical power splitter obtained from an offset parabolic reflector fed by in-focus beam source.Item Restricted Reviews of Books; J. V. Field; Kepler's Geometrical Cosmology(1989) England, PaulaItem Restricted The pugnacity syndrome(1991) Garver, NewtonItem Restricted The sociology of mathematics revisited: A personal note(1986) Struik, Dirk J.Item Restricted The use of mathematics in social explanation(1989) Dore, MHIItem Restricted Turkey’s flag: development in modern history, influences and roles(Bilkent University, 2020) Moradi, Javid; Abdulla, Seymur; Hasanzaadeh, Araz; Jabiyev, Ramil; Mehrabkhani, SerajIn this paper, first, the history and development of the Turkish flag during the Late Ottoman era have been explained. We argued that the flag has not changed drastically as it can be seen in primary sources such as propaganda pictures and advertisements from the Ottoman Era. Then, its geometrical development has been described. We have explained how its modern and geometrically perfect shape has been acquired by using mathematical theorems and the constant unit of G. This research also attempts to clarify how the Turkish flag is protected by the Turkish laws and the constitutions. The constitutions and laws regarding the uses and misuses of the Turkish flag are discussed with the help of primary sources. Finally, the Turkish flag was examined as an inspiration and symbol for Turkish art which has been discussed with reference to numerous artworks and illustrations such as the national anthem and Zeki Faik Izer’s paintings.Item Restricted Türkiye Cumhuriyeti’nin ilk fen fakültesi: Ankara Üniversitesi Fen Fakültesi(Bilkent University, 2023) Kelleroğlu, Göknil Beyza; Kuran, Almina Sıla; Kürkçü, Bora Cem; Dağalp, Ece; Özer, Emre1933’te Türkiye’deki üniversite ve eğitim tarihinin en önemli gelişmelerinden biri olan Üniversite Reformundan etkilenen İstanbul Üniversitesinin açılışından yıllar sonra Ankara Üniversitesi Fen Fakültesi açılmıştır. Ankara Üniversitesi Fen Fakültesi 1943 yılında Türkiye’nin II. Dünya Savaşı tarafından çalkalandığı bir dönemde faaliyetine başlamıştır. Ankara Üniversitesi ve Fen Fakültesi oldukça köklü tarihiyle Türkiye’deki eğitim ve bilim gelişmelerinde önemli bir yere sahiptir. Kuruluş zamanında II. Dünya Savaşı’ndan, ilerleyen dönemlerde ise gerekli siyasi olaylardan etkilenen Ankara Fen Fakültesi ve Üniversitesinin kimya, matematik, istatistik ve fizik faaliyetleri bizim araştırmamızın temellerini oluşturmaktadır. Bu konuların yanı sıra bu başlıklarda yararlanan röportajlar da araştırmanın içinde yer almaktadır. Bu röportajlar Sayın Prof. Dr. Yılmaz Akdi, Prof. Dr. Mustafa Taştekin, fakülte çalışanı Ramazan Aksoy ve emekli Fen Fakültesi Sekreteri Mustafa Akdeniz ile yapılmıştır.