Sahin, I.

Makale | 2012 | PHYSICAL REVIEW D85 ( 3 )

We have investigated nonstandard v (v) over barv and v (v) over bar gamma gamma couplings via v (v) over bar production in a gamma p collision at the LHC. We obtain 95% confidence level bounds on v (v) over bar gamma and v (v) over bar gamma gamma couplings by considering three different forward detector acceptances: 0: 0015< xi < 0: 15, 0: 0015 < xi < 0: 5, and 0: 1< xi < 0: 5. We show that the reaction pp -> p gamma p -> pv (v) over bar qX provides more than eight orders of magnitude improvement in neutrino- two photon couplings compared to LEP limits.

Sahin, I. | Sahin, B.

Makale | 2012 | PHYSICAL REVIEW D86 ( 11 )

We investigate the constraints on the anomalous quartic ZZ gamma gamma couplings through the process pp -> p gamma p -> p gamma qZX at the LHC. Taking into consideration various forward detector acceptances and integrated LHC luminosities, we find 95% confidence level bounds on the anomalous coupling parameters. We show that the bounds on these couplings are at the order of 10(-6) GeV-2 which are about four orders of magnitude more restricted with respect to current experimental bounds.

Kumbasar, Serkan | Yapca, O. Erkan | Bilen, Habib | Suleyman, Bahadir | Ozgeris, F. Betul | Borekci, Bunyamin | Suleyman, Halis

Makale | 2012 | BIOMEDICAL RESEARCH-INDIA23 ( 4 ) , pp.495 - 500

In this study, we investigated the effects of lacidipine on XO, MDA, MPO, and GSH levels in ovarian tissues of rats, which are subjected to ischemia and post-ischemic reperfusion. In ovarian ischemia (OI), ovarian ischemia-reperfusion (OIR), 2 mg/kg lacidipine + ovarian ischemia (LOI-2), 4 mg/kg lacidipine + ovarian ischemia (LOI-4), 2 mg/kg lacidipine + ovarian ischemia-reperfusion (LOIR-2), 4 mg/kg lacidipine + ovarian ischemia-reperfusion (LOIR-4) and sham-operated healthy control group (HCG); XO 23.8 +/- 0.94, 13.6 +/- 0.76, 8 +/- 0.57, 5.8 +/- 0.60, 4.5 +/- 0.42, 3.6 +/- 0.55, 2.8 +/- 0.30 u/g, respectively, whereas MDA, 4.8 +/ . . .- 0.47, 13.33 +/- 0.66, 3.5 +/- 0.35, 3.4 +/- 0.42, 6.0 +/- 0.57, 5.3 +/- 0.61,2.8 +/- 0.22 mu mol/g protein, respectively. MPO, 6.1 +/- 0.60, 14.1 +/- 0.94, 6.3 +/- 0.66, 6.0 +/- 0.73, 8.8 +/- 0.60, 7.5 +/- 0.76, 6 +/- 1.06 u/g protein, respectively, while GSH 8.0 +/- 0.73, 3.1 +/- 0.47, 8.6 +/- 0.95, 8.9 +/- 0.91, 7.1 +/- 0.60, 7.5 +/- 0.76 ,9.1 +/- 0.47 nmol/g protein, respectively. The present study, conducted on the basis of the mechanism of formation of IR injury, demonstrated that lacidipine prevents ischemia-reperfusion injury in the ovarian tissues Daha fazlası Daha az

Sizmaz, Selcuk | Karatas, Muge Coban | Yaycioglu, Rana Altan | Canan, Handan | Canturk, Silay | Akova, Yonca A.

Makale | 2012 | TURKIYE KLINIKLERI TIP BILIMLERI DERGISI32 ( 6 ) , pp.1512 - 1517

Objective: To analyze the effect of phacoemulsification on intraocular pressure (IOP) and to evaluate the management for high postoperative IOP. Material and Methods: Data of 812 eyes of 584 consecutive patients (330 males and 254 females) who underwent Uneventful phacoemulsification in Department of Ophthalmology, Baskent University Adana Research Center were investigated retrospectively. The ages ranged between 26 and 89 years (65.5 +/- 9.8 years). Intraocular pressure values of preoperative and postoperative first day, first week and first month visits were recorded. Intraocular pressures over 22 mm Hg were considered as high IOP . . .. Either anterior chamber decompression or antiglaucomatous medication was used to decrease the postoperative rise in IOP. Changes in TOP were analyzed using ANOVA. Results: The mean preoperative TOP was 15.6 +/- 4.3 mmHg, which increased to 19.7 +/- 9.0 mmHg on the 1st day ( Daha fazlası Daha az

Sevim, Serkan | Pekbay, Canay Altındağ

Makale | 2012 | Journal of Turkish Science Education9 ( 3 ) , pp.207 - 227

This study investigated the influence of the nature of science teaching activities, based on explicit-reflective inquiry oriented approach on pre-service teachers&#8217; nature of science concepts. This study is interpretive in nature because it focused on the meanings that participant ascribed to the emphasize aspects of nature of science. Twelve teaching activities based on the empirical, tentative, inferential, creative and imaginative, subjective, socially and culturally and relationships between scientific theories and laws nature of scientific knowledge were designed and implemented to a group of 36 pre-service teachers. S . . .tudy was implemented in Science Teaching Laboratory Application-I lesson. In lesson, participants determined a problem case and studied on this problem like a scientist. Besides, explicit-reflective teaching activities were implemented to participants. After each of activity, pre-service teachers wrote reflective notes. Data was gathered by a pre-post &#8220;nature of science questionnaire&#8221;, semi structured interviews, and also reflective notes for each of the activity by participants. Each pre-service teachers&#8217; pre and post nature of science profiles were constructed and compared, thus, effect of the activities on the participants was determined. While participants&#8217; profiles were constructed, the data by categorizing each participants&#8217; views of the seven emphasized aspects of NOS into &#8220;adequate&#8221;, &#8220;variable&#8221; and &#8220;poor&#8221;. In order to learn about the effects of the explicit-reflective nature of science teaching activities on views on scientific knowledge, paired t test was used. From the data, it was concluded that pre-service teachers had uncertain views about the nature of science at the beginning, however after the intervention; pre-service teachers had very informed views about it. Especially, there was a significant change in pre-service teachers&#8217; views on four aspects of the nature of science; tentative, relationships between scientific theories and laws, creative of scientific knowledge and inference of nature of science. It is suggested that developing informed conceptions of the nature of science for pre-service teachers is a cognitive instructional outcome that requires an explicitreflective instructional approach. This study investigated the influence of the nature of science teaching activities, based on explicit-reflective inquiry oriented approach on pre-service teachers&#8217; nature of science concepts. This study is interpretive in nature because it focused on the meanings that participant ascribed to the emphasize aspects of nature of science. Twelve teaching activities based on the empirical, tentative, inferential, creative and imaginative, subjective, socially and culturally and relationships between scientific theories and laws nature of scientific knowledge were designed and implemented to a group of 36 pre-service teachers. Study was implemented in Science Teaching Laboratory Application-I lesson. In lesson, participants determined a problem case and studied on this problem like a scientist. Besides, explicit-reflective teaching activities were implemented to participants. After each of activity, pre-service teachers wrote reflective notes. Data was gathered by a pre-post &#8220;nature of science questionnaire&#8221;, semi structured interviews, and also reflective notes for each of the activity by participants. Each pre-service teachers&#8217; pre and post nature of science profiles were constructed and compared, thus, effect of the activities on the participants was determined. While participants&#8217; profiles were constructed, the data by categorizing each participants&#8217; views of the seven emphasized aspects of NOS into &#8220;adequate&#8221;, &#8220;variable&#8221; and &#8220;poor&#8221;. In order to learn about the effects of the explicit-reflective nature of science teaching activities on views on scientific knowledge, paired t test was used. From the data, it was concluded that pre-service teachers had uncertain views about the nature of science at the beginning, however after the intervention; pre-service teachers had very informed views about it. Especially, there was a significant change in pre-service teachers&#8217; views on four aspects of the nature of science; tentative, relationships between scientific theories and laws, creative of scientific knowledge and inference of nature of science. It is suggested that developing informed conceptions of the nature of science for pre-service teachers is a cognitive instructional outcome that requires an explicitreflective instructional approach Daha fazlası Daha az

Yosmaoglu, A. | Fistikci, N. | Hacioglu, M. | Keyvan, A. | Saatcioglu, O. | Kora, K.

Konferans nesnesi | 2012 | BIPOLAR DISORDERS14 , pp.136 - 137

5th Biennial Conference of the International-Society-for-Bipolar-Disorders -- MAR 14-17, 2012 -- Istanbul, TURKEY WOS: 000301531000340

Seçkiner, İlker | Altunkaya, Aykut | Bayrak, Ömer | Akduman, Bülent | Mungan, Aydın

Makale | 2012 | Gaziantep Tıp Dergisi18 ( 2 ) , pp.106 - 108

Tuberoskleroz kompleksi (TSC) nörolojik ve dermatolojik bir hastalık olarak bilinmekteyse de; böbrekte meydana getirdiği değişiklikler nedeniyle sıklıkla karşılaşılabilmekte ve ölüme neden olabilmektedir. Biz bilateral multipl renal anjiomiyolipomu olan tuberosklerozlu bir hastayı sunmak istedik. Renal anjiomiyolipomu olan hastada spontan retroperitoneal hematom meydana geldi ve klinik takiplerinde intraperitoneal kanamayı taklit etmesiyle tanı kondu. Hemorajiyi kontrol etmek için sağ total nefrektomi yapıldı. Ancak hasta post operatif 15. gün zayıf solunum fonksiyonları nedeniyle kaybedildi. Tuberous sclerosis complex (TSC) is know . . .n as a neurological and dermatological disorder, but its renal manifestations are frequent and may cause death. We report a patient with TSC who showed bilateral multiple renal angiomyolipomas. Spontaneous retroperitoneal hematoma caused by renal angiomyolipoma that mimicking intraperitoneal hemorrhage was diagnosed in her clinical follow-up. We performed right total nephrectomy for controlling hemorrhage, but she died due to poor respiratory function, in fifteenth day postoperatively Daha fazlası Daha az

Bütün, Celal | Beyaztaş, Fatma Yücel | Yılmaz, Rıza

Makale | 2012 | Türk Pediatri Arşivi47 ( 1 ) , pp.60 - 63

Yıldırım çarpması, çevresel afetlerin ölüme yol açtığı nedenlerden biridir. Yıldırım çarpmasına bağlı ölümler Sivas ilinde az da olsa görülmektedir. Bu çalışmada; ölüme yol açan yıldırım çarpması olgularının çok az bir kısmında görülebilecek, kişilerin kıyafetlerinde ve otopsideki yıldırım çarpmasına özgü bulguların adli-tıbbi yönden değerlendirilmesi amaçlanmıştır. Çiftlikte yaşayan beş yaşındaki erkek çocuğu, açık arazi olan tarla içerisinde babasının yanına giderken yıldırım çarpmasına maruz kalır, babası tarafından canlandırma işlemi yapılır ve daha sonra hastaneye götürüldüğünde ölmüş olduğu saptanır. Ölüm sonrası incelemede, o . . .lgunun elbiselerinde ve vücudunda yıldırım çarpması ile uyumlu geniş yanıklar görülür. Açık arazide meydana gelen şüpheli ölümlerde, yıldırım çarpması da olası ölüm nedenleri arasında göz önünde bulundurularak cesedin ayrıntılı iç ve dış muayenesi ile birlikte dikkatli bir olay yeri incelemesi de yapılmalıdır. Ölüm nedeninin tespitinde yıldırım çarpmasına özgü dış ve iç muayene bulgularını belirleyebilmek ve değerlendirmek önemlidir. Ayrıca, olay yeri çevresinde yıldırım çarpmasına bağlı hayvan ölüleri, ağaç gövdelerinde oluşan hasarlar da ölüm nedeninin belirlenmesinde önemli bulgulardır. Lightning is one of the reasons for death due to environmental disasters. Lightning-related deaths occur rarely in Sivas. This study aims to make the medico-legal evaluation of rare specific findings can be observed on clothings and during autopsy in a small part of the subjects who died due to stroke of lightning. A five-year-old boy who resided in his father&#8217;s farm was exposed to lightning on an open field. Resuscitation failed and he was reported to be dead when he arrived at the hospital. Postmortem investigation revealed extensive burnt areas on his clothes and body. In suspicous deaths occurring on open fields, lightning should be taken into consideration as a possible cause of death. Detailed external and internal examination should be carried out along with careful crime scene investigation. It is important to determine and evaluate the characteristic findings of lightning. Carcasses of animals and damages in the trunks of trees found in surrounding area should not be overlooked, since they may give some clues to establish a link between lightning and death Daha fazlası Daha az

Kaçar, Dündar | Barut, Çağatay

Makale | 2012 | Uludağ Üniversitesi Tıp Fakültesi Dergisi38 ( 1 ) , pp.45 - 47

Arteria obturatoria, arteria iliaca interna’nın ön veya iç yüzünden ayrılır. Pelvis’in yan duvarında öne ve aşağı doğru uzanarak canalis obtura-torius’a girer. Formalin ile fikse edilmiş beyaz, erişkin bir kadın kadavrada pelvis bölgesi iç yüzünün diseksiyonu sırasında sol taraf arteria iliaca interna’nın dalları arasında arteria obturatoria’nın bulunmadığını tespit ettik. Canalis obturatorius bölgesi dikkatlice incelendiğinde yukarı kısımdan aşağı, kanala doğru giden ve digital kumpas ölçüm değeri 3.79 mm çaplı bir arter gözlemledik. Bu tespit ettiğimiz damarın ligamentum inguinale hizasının hemen üst kısmında arteria iliaca extern . . .a’ya ait olan 14.24 mm uzunluğunda, 4.17 mm çapında bir kütükten ayrılan arteria obturatoria olduğunu belirledik. Bu arteria obturatoria’nın nadir görülen bir varyasyonudur. Klinik açıdan bu tip varyasyonlar bu sahanın tanısal amaçlı anjiografik uygulamaları ve tedavi edici cerrahi operasyonlarında hayati önem taşır. Ayrıca bu tip varyasyonların bilinmesi ilgili sahanın operasyonlarında beklenmedik cerrahi komplikasyonları da en aza indirmesi açısından da önemlidir. Obturator artery which originates from internal iliac artery lies on the lateral wall of pelvis anteriorly and inferiorly before entering obturator canal. During dissection of pelvic cavity of a female adult Caucasian cadaver it was determined that internal iliac artery did not give branch to obturator artery on the left. During the evaluation of obturator canal an artery with a diameter of 3.79 mm was observed superior to the entrance of the canal. This artery originated from a trunk. The length of the trunk was 14.24 mm and its diameter was 4.17 mm. This trunk originated from the external iliac artery just above the inguinal ligament. This artery is encountered to be the obturator artery. Such a varia-tion is suggested to be a rare variation regarding with obturator artery. To be aware of such variations is of vital importance during diagnostic angiographic interventions and surgeries related with inguinal region Daha fazlası Daha az

Dökmen, Gökhan | Günel, Tuğay

Makale | 2012 | Ekonomik ve Sosyal Araştırmalar Dergisi8 ( 3 ) , pp.43 - 65

Mükelleflerin vergiye gönüllü uyumunu sağlamaya yönelik olarak farklı stratejiler yürürlüğe konmuştur. Bu farklı stratejiler içerisinde günümüzde en dikkat çekici olanı duyarlı regülasyon stratejisidir. Duyarlı regülasyon stratejisi vergileme alanına uygulandığında, mükellef odaklı ve mükelleflerin tutum ve davranışlarına göre şekillenen bir sistem devreye girmektedir. Bu sistemde mükellefin vergiye gönüllü uyumunu kolaylaştıracak olan stratejiler uygulanmakta ve bu stratejiler mükelleflerin takındığı tavra göre değişim göstermektedir. Başka bir ifadeyle duyarlı regülasyon stratejisi mükellefin avrına göre hangi stratejilerin uygula . . .nması gerektiğini ifade eden bir sistemi betimlemektedir. Bu çalışmanın temel amacı, söz konusu sistemin uygulama sonuçlarını, Avustralya Vergi İdaresinin deneyimlerine dayalı olarak ortaya koymaktır. Çalışmada, Avustralya'da duyarlı regülasyon temeline dayalı vergileme modelini kullanmasının mükelleflerin vergiye gönüllü uyumunu arttırdığı bulgusuna ulaşılmıştır. Different strategies in order to ensure voluntary compliance of taxpayers have been introduced. The most remarkable one among these strategies is the responsive regulation. When the responsive regulation strategy is applied to the field of taxation, a system which is taxpayer-focused, and which is shaped according to the behaviors and attitudes of taxpayers steps in. In this system, strategies which will facilitate voluntary compliance of taxpayers are applied and these strategies are ranged according to the attitudes adopted by taxpayers. In other words, responsive regulation strategy states which strategies should be applied according to the attitudes of taxpayers. The main purpose of this study is to reveal the results of application of the responsive regulation based on the experiences of Australian Taxation Administration. In the study, it is found that the use of taxation model which is based on responsive regulation increases voluntary compliance of taxpayers in Australia Daha fazlası Daha az

Köktürk, Fürüzan

Master Tezi | 2012 | Bülent Ecevit Üniversitesi, Sağlık Bilimleri Enstitüsü, Biyoistatistik Anabilim Dalı

Tıp alanında bulunan mevcut veri oldukça fazla ve hayati öneme sahiptir. Veri madenciliği teknikleri ile hayati öneme sahip olan bu verilerden daha fazla yararlanmak mümkündür. Veri madenciliği son yıllarda oldukça önemli bir konu haline gelmesine ve hemen hemen her alanda uygulama sahası bulmasına rağmen ülkemizde sağlık alanında çok yaygın kullanılmamaktadır. Bu tez çalısmasında veri madenciliği yöntemlerinden, k-en yakın komşuluk, yapay sinir ağları ve karar ağaçları yöntemlerinin sınıflandırma başarılarının karşılastırılması amaçlanmıstır. Bu amaçla Bülent Ecevit Üniversitesi Uygulama ve Araştırma Hastanesi Kadın Hastalıkları ve . . . Doğum Polikliniği’ne başvuran erken ve zamanında doğum yapan gebelerden elde edilen veri setine bu üç teknik uygulanarak, sınıflandırma başarıları hesaplanmıstır. Yapılan analizler sonucunda doğru sınıflandırma oranları, k-en yakın komşuluk analizi için % 78.3, yapay sinir ağı tekniği için % 90.8 ve karar ağacı yöntemi için ise % 82.5 olarak bulunmuş ve yapay sinir ağı tekniğinin diğer iki yönteme göre sınıflandırma başarısının daha iyi olduğu görülmüştür. The amount of medical data is huge and vital. It is possible to obtain more benefit from these data by data mining techniques. Although the data mining has been becoming a very important subject and being used in almost all fields in recent years, it has no widely use in the health sector in our country. In this thesis study, it was aimed to compare of the classification success of the knearest neighbor, artifical neural network and the decision trees techniques. For this purpose, these three techniques were applied and the classification success was measured on the pregnants those gave preterm birth and those gave birth in time in Departments of Obstetrics and Gynecology of Bulent Ecevit University. After the analysis of the results, the correct classification ratios found to be 78.3 % for knearest neighbor method, 90.8 % for artifical neural network, 82.5 % for decision trees method and it was concluded that the artifical neural network is more successful than the other two methods Daha fazlası Daha az

Çeştepe, Hamza | Vergil, Hasan | Ergun, Havanur

Makale | 2012 | İşletme ve Ekonomi Araştırmaları Dergisi3 ( 4 ) , pp.91 - 105

Bilgi ve iletişim teknolojilerinde meydana gelen gelişmelerle önemi gittikçe artan ve daha fazla ticarete konu olan hizmetler sektörü, bu yönüyle birçok ülke için büyümenin önemli kaynaklarından birini oluşturmaktadır. Bu çalışmada, 1980-2007 dönemi için panel veri test ve tahmin yöntemleri kullanılarak hizmet ticaretinin büyüme üzerindeki etkisi, gelişmişlik düzeylerine göre sınıflandırılmış ülke grupları üzerinde ampirik olarak incelenmiştir. Panel regresyon tahmin sonuçlarına göre, hizmet ticareti ve büyüme arasındaki ilişkiyi gösteren katsayı gelişmiş ülke grubu için anlamsız çıkarken, gelişmekte olan ülke grubu ile, iki ülke gr . . .ubundaki ülkelerden oluşan genel ülke grubunda hizmet ticaretinin büyüme üzerinde olumlu etkisinin olduğu tespit edilmiştir. Ancak bu etkinin, gayrisafi yurtiçi hasılaları içinde hizmet ticaretinin payının daha yüksek olduğu gelişmekte olan ülkelerde daha fazla olduğu ortaya çıkmıştır. A services trade, which has increasingly got important and a subject of trade due to improvements in knowledge and communication technologies, has been one of the important sources of economic growth for many countries. In this study, the effect of services trade on economic growth for country groups classified according to their development levels has been empirically investigated using panel data techniques for 1980-2007. The results reveal that while the coefficient which shows the relationship between services trade and economic growth is insignificant for developed countries, it is found significant for developing countries and for the whole sample which comprises both country groups. However, it is also observed that this effect is larger for developing countries which have higher services trade shares Daha fazlası Daha az