219 research outputs found
Foreign language learning anxiety: A comparison between high school and university students
This research aimed to identify the differences in foreign language learning (FLL) anxiety levels between high school and university students based on some variables such as gender, current educational status, parents’ (father and mother) educational status, and monthly income of families. The survey model was adopted in the research. The research included high school (n = 333) and university (n = 341) students from Nigde and Afyonkarahisar provinces. In the research, “Foreign Language Learning Anxiety Scale” (FLLAS) was used in order to collect data. For the analyses of the data, independent samples t-test and one-way ANOVA were performed. The results of the research indicated that gender, fathers’ educational status and monthly income of family variables did not have a significant impact on foreign language anxiety levels of high school and university students. It was also found that students’ educational status as well as their mothers’ educational status variables influenced their FLL anxiety significantly
Post-Truth Medya ve Tüketici Davranışlarına Etkisi: “Genç Yetişkinler” Üzerine Keşifsel Bir Araştırma Post-Truth Media and Its Impact on Consumer Behavior: An Exploratory Study on “Young Adults”
İnternet ve dijital teknolojilerin Web 2.0 devrimiyle yaratılan ve içerik
oluşturmaya olanak sağlayan yeni sistemde kullanıcılara ortaklaşa paylaşımla sunulan
ikinci nesil hizmetler, Türkiye gibi sosyal medya kullanım oranının yüksek olduğu
ülkelerde tüketici davranışlarını doğrudan etkileyen iletişim ağlarının ve sosyal medya
üzerinde gruplaşmaların oluşumuna zemin hazırlamıştır. Oluşan yeni iletişim
ortamında, kamuoyu yargılarının rasyonellikten uzaklaşarak duygulardan ve kişisel
kanaatlerden etkilenmesi sonucunda popülaritesi artan ve Oxford sözlükleri tarafından
2016 yılının kelimesi seçilen Post-Truth kavramı günlük yaşamda tüketici davranışlarını
etkileyen ve kontrol edilmesi güç bir etken haline gelmiştir.
Bu çalışmada, Post-Truth medyanın 18-34 yaş aralığı olarak belirlenen “Genç
Yetişkinler” segmentindeki kullanıcıların tüketim davranışları üzerindeki etkisini
belirlemeye yönelik odak grup çalışması yapılmış, Post-Truth kavramının ve Post-Truth
medyanın artan önemi üzerinde durularak tüketici davranışları üzerindeki etkisi ortaya
konulmuştur.
Araştırma bulguları; tüketicilerin sadık oldukları markalar hakkında yapılan PostTruth haberlere itibar etmediklerini, aynı durumu ve haberi, haber kaynağının kendi
siyasi görüşlerine uygun olup olmamasına göre farklı şekillerde yorumladıklarını, PostTruth haberlerin genellikle siyasi tabanlı olarak algılanması nedeniyle işletmelerin PostTruth medyadan etkilenmemeleri için belirli bir siyasi görüş ile ilişkilendirilen sosyal
medya kanallarını ve etkinliklerini tercih etmemeleri gerektiğini ortaya koymuştur.
In the new system created by the Web 2.0 revolution of Internet and digital
Technologies and enabling content creation, the second generation of services offered
by jointly sharing has laid the ground for its formation of communication networks that
directly affect consumer behavior and grouping on social media in countries with high
rate of social media usage such as Turkey. In the new communication environment, the
concept of Post-Truth, which has become popular as a result of the fact that public
judgements affected by emotions and personal convictions away from rationality and
has been choosen as the Word of 2016 by Oxford Dictionaries, has become a factor that
affects consumer behavior and difficult to control in daily life.
In this study, focus group interviews was conducted to determine the effect of
Post-Truth media on consumption behaviors of the “Young Adults” segment which was
determined as the 18-34 age range, and the effect of Post-Truth concept and Post-Truth
media on consumer behavior was emphasized.
Research findings point out that; consumers do not respect the Post-Truth news
about the brands they are loyal to and that they interpret the same situation and news in
different ways depending on whether or not the news source is compatible with their
own political views, businesses should not prefer the social media channels and
activities associated with a particular political view in order not to be affected by the
Post-Truth media because of the fact that Post-Truth news is generally perceived as
political-based
Abdürrahim Fâiz Efendi’nin hayatı hakkındaki hatalı bilgilerin düzeltilmesi ve Fâiz Efendi’nin Abdülbâkî Ârif Efendi’nin Siyer-i Nebî’sindeki asıl rolünün tespiti
17. yüzyıl Osmanlı âlim, hattat ve şairlerinden olan Abdülbâkî Ârif Efendi'nin kaleme almış olduğu Siyer-i Nebî hakkında yaptığımız araştırmalar sonucunda ulaşılan bilgiler arasında, eserin Ârif Efendi tarafından yazılmaya başlandığı fakat vefatıyla yarım kalan eserin dönemin vezir-i azamı Damat İbrahim Paşa’nın emri ile Ârif Efendi’nin damadı Abdürrahim Fâiz Efendi tarafından tamamlandığı bilgisi mevcuttur. Ayrıca Fâiz Efendi’nin Ârif Efendi’nin müsveddelerinden yararlanarak tamamlamış olduğu bu ilk istinsah edilen nüshanın, Süleymaniye Kütüphanesi Hüsrev Paşa Koleksiyonu Numara 414’te bulunduğu da edinilen bilgiler arasındadır. Fakat eser nüshaları üzerinde yaptığımız detaylı araştırmalar sonucunda bu bilgilerin hatalı olduğu tespit edilmiş, ayrıca Fâiz Efendi’nin hayatı ile alakalı bugüne kadar yapılmış çalışmaların neredeyse hepsinin hatalı ve eksik bilgiler içerdiği ortaya çıkmıştır. Bu makale, Fâiz Efendi’nin hayatı ile ilgili bilgileri bütün tezkirelerden karşılaştırmalı olarak araştırarak onun hayatını kapsamlı bir şekilde ilim dünyasına kazandırmak ve Ârif Efendi’nin Siyer-i Nebî’sinin ulaşılan bütün nüshalarından elde edilen veriler ışığında, esere Fâiz Efendi’nin asıl katkısının ne olduğunu ortaya çıkarmak amacıyla kaleme alınmıştır
Laboratory performance of x-ray detector on 2U cubesat beeaglesat
A CdZnTe based semiconductor X-ray detector (XRD) and its associated readout electronics has been developed by the Space Systems Design and Testing Laboratory of Istanbul Technical University and the High Energy Astrophysics Detector Laboratory of Sabanci University along with an SME partner. The XRD will be the secondary science mission on board BeEagleSat, which is developed as one of the double CubeSats for the QB50 project. QB50 is a European Framework 7 project carried out by a number of international organizations led by the von Karman Institute of Belgium.
The heart of the XRD is a 2.5 mm thick, 15 mm x 15 mm CdZnTe crystal with orthogonal electrode strips on top and bottom for position resolution on the crystal. There are 3 sets of steering electrodes in between anodes. A
commercial off the shelf (COTS) high voltage source provides necessary potential difference to transport electrons and holes towards electrodes. The signals from each strip are read by a COTS ASIC, RENA-3b, controlled my MSP
430. The XRD board (single ~10 cm x 10 cm board) also carries the necessary power regulators and 7 COTS batteries. In a previous paper presented at the IAC 2014, we discussed the main design of the XRD and provided results from some of the early vibration tests of the mechanical design. At the time, the CdZnTe crystal has not been attached, and the readout electronics and software were still in development phase. In this paper, we present the laboratory performance of the electronic readout system and discuss the current phase of the XRD development
ANALİTİK HİYERARŞİ PROSES YÖNTEMİ İLE RÜZGAR TÜRBİN SEÇİMİ
In this study, the criteria that need to be considered for the selection of an appropriate wind turbine brand were settled based on a predetermined location of wind turbine. A hierarchical structure was established and Analytical Hierarchical Process (AHP) method was applied on the decision of selection for the best wind turbine among candidate turbine brands by means of this structure. Results obtained by this way were evaluated and the turbine which is selected among alternative turbine brands was investigated in detail.Bu çalışmada kuruluş yeri önceden tespit edilen bir rüzgâr türbini için uygun türbin markası seçiminde dikkat edilmesi gereken kriterler belirlenmiştir. Kriterlere uygun hiyerarşik bir yapı oluşturulmuş ve bu yapıya göre belirlenen markalar arasından en iyi rüzgâr türbini seçim kararına, Analitik Hiyerarşi Süreci (AHS) yöntemi uygulanılmıştır. Bu yolla elde edilen sonuçlar değerlendirilmiş ve alternatif rüzgâr türbini markaları arasından hangisinin seçileceği detaylı olarak incelenilmiştir.
Reconstruction of Huge Cutaneous Defects of Thoracic Large Meningomyelocele: A Technical Note
In meningomyelocele (MMC) cases, postnatal sac repair and repairment of overlying tissue defect in early period is a challenging surgical process. Infection control, hemodynamic follow-up and selection of the appropriate reconstruction technique are important. Repairment of thoracolumbar huge defects is extremely difficult due to the anomalies of adjacent bony and soft tissues. The aim of the study is to report the method of repairment of the thoracolumbar huge defect in a patient with a large MMC and also to review the options of repairment of such defects and to provide a common surgical discipline. A term newborn with a mainly thoracic large MMC, 10x15 cm in size, was operated on the 5th postpartum day. After the excision of MMC and repairment of neural tube, operation was performed for the closure of skin defect. Tissue defect was reconstructed with a Z advancement-rotation flap. There were no early or late complications after the operation. We concluded that the repairment of the defects with flaps after giant MMC excisions in a single-session reduces the morbidity
Development and in orbit testing of an x ray detector within a 2U cubesat
A CdZnTe based semiconductor X-ray detector (XRD) and its associated readout electronics is developed by the Space Systems Design Laboratory of Istanbul Technical University and High Energy Astrophysics Detector Laboratory of Sabanci University along with an SME partner. The detector will utilize 30 orthogonal cross strip electrodes (and 3 steering electrodes in between anodes) whose geometry is optimized by an extensive set of simulations and energy resolution measurements. The signals will be read by RENA 3b ASIC controlled by MSP 430 microcontroller. The system will have its own battery and will be turned on intermittently due to power constraints. CdZnTe based X-ray detectors have been utilized in space, but they are either pixellated (NuStar), or they consist of many individual crystal pieces (BAT in Swift satellite). The aim of the XRD is to show that large volume crystals with orthogonal strips are viable alternatives, especially for small satellite systems with medium energy resolution requirement. XRD will also characterize the hard X-ray background in 20-200 keV at low Earth orbit conditions as a function of altitude. Due to power and telemetry constraints, the individual events will be corrected for hole trapping on-board, histogrammed, and only the X-ray spectra will be transmitted to the ground station along with a small set of raw data for diagnostic purposes.
The XRD is planned to travel into space, as a secondary science mission, on board BeEaglesat which is a 2U CubeSat developed as one of the possible double (2U) CubeSats for the QB50 project. QB50 is a European Framework 7 (FP7) project carried out by a number of international organizations led by the von Karman Institute of Belgium. Its main scientific objective is to study in situ the temporal and spatial variations of a number of key constituents and parameters in the lower thermosphere with a network of about 50 double and triple CubeSats, separated by few hundred kilometers and carrying a determined set of sensors
The effect of carbon monoxide releasing molecule-2 (Corm-2) on healing of ischemic colon anastomosis in rats
Background/aim: Ischemia on the colon wall negatively affects healing of anastomosis. We were aimed to evaluate the effects of carbon
monoxide releasing molecule-2 (CORM-2) on the healing of anastomosis in a rat model of the ischemic colon.
Materials and methods: In this prospective study a total of 60 rats were randomly divided into three groups as colon transection and
end-to-end anastomosis (Group I), colon transection, and end-to-end anastomosis following the induction of ischemia (Group II), and
colon transection and end-to-end anastomosis following the induction of ischemia and treated with daily intraperitoneal administration
of CORM-2 (Group III). Each group was also divided into two equal subgroups as postoperative 3rd and 7th day. Postoperative healing
of anastomoses was evaluated by anastomosis burst pressure (ABP), tissue biomarkers including hydroxyproline (HP), malondialdehyde
(MDA), glutathione (GSH), and histopathological findings.
Results: In the ischemic group treated with CORM-2, lower MDA and higher HP levels were observed in comparison to the untreated
ischemic group on the 3rd day. GSH and HP levels were higher and MDA levels was lower in the ischemic rats treated with CORM-2
than in the ischemic untreated rats on the 7th day. In the ischemic group treated with CORM-2, the mucosal epithelial score decreased
and the neoangiogenesis score increased compared to the untreated rats on the 7th day.
Conclusion: In ischemic colon anastomosis, reduces cell destruction by suppressing the oxidative reaction, and strengthening the
antioxidative mechanisms of the cells. It also increases collagen formation, epithelial development, and neoangiogenesis
Genetic Diagnosis of Hereditary Hemorrhagic Telangiectasia: Four Novel Pathogenic Variations in Turkish Patients
Aims: Hereditary hemorrhagic telangiectasia is an autosomal dominant disorder characterized by telangiectasia, epistaxis, and vascular malformations. Pathogenic mutations were found in ENG, AVCRL1, SMAD4, and GDF genes. In this study, we present our database of patients with hereditary hemorrhagic telangiectasia regarding the phenotype-genotype relations and discuss two novel ENG gene pathogenic variations in two unrelated families. Methods: Next Generation Sequencing analysis was performed on the peripheral blood of nine patients with hereditary hemorrhagic telangiectasia in four unrelated families. All patients were diagnosed with hereditary hemorrhagic telangiectasia according to the Curaçao criteria. Data on treatment and screenings of visceral involvement were recorded from files. Results: We have found a pathogenic variation in either the ENG or ACVRL1 gene in each family. Two novel pathogenic variations in the ENG gene, including NM_000118.3 (ENG): c.416delC (p.P139fs*24) and NM_000118.3(ENG): c.1139dupT (p.Leu380PhefsTer16), were found in the same family. The NM_000020.2(ACVRL1): c.1298C>T (p.Pro433Leu) pathogenic variation in the ACVRL1 gene in our first family and a novel heterozygous likely pathogenic NM_000020.2(ACVRL1): c.95T>C (p.Val32Ala) variation was found in our second family. Seven of the nine patients were treated with thalidomide for controlling bleeding episodes. All patients responded to thalidomide. In one patient, the response to thalidomide was lost and switched to bevacizumab. Conclusion: In hereditary hemorrhagic telangiectasia, certain types of mutations correlate with disease phenotypes and with next generation sequencing methods. New pathogenic variations can be revealed, which might help manage patients with hereditary hemorrhagic telangiectasi
CD11b Expression in Acute Myeloid Leukemia is Associated With Hemostatic Complications and Response to Treatment
Aim:In our study, we aimed to investigate the effects of CD11b expression on myeloblasts on clinical course and prognosis in patients with AML.Materials and Methods:Data of 123 patients diagnosed with AML between 2014-2017 in Trakya University Faculty of Medicine, Department of Hematology, a tertiary referral hospital in the Trakya Region, were evaluated in a retrospective manner. The diagnosis of AML was based on WHO 2016 criteria of Myeloid Neoplasms.Results:Of the 123 patients in our study, 60 were female, and 63 were male. The mean age was 57.93 years. CD11b positivity was observed in 40 patients. Platelet counts were significantly lower in patients with CD11b positivity (p = 0.004). Likewise, D-dimer levels at presentation were higher in the CD11b positive patient group (p = 0.000). Regarding outcomes, patients with CD11b positivity were found to have lower rates of remission with first-line remission induction therapy (p = 0.003). There was no significant relationship between CD11b positivity and overall survival with Kaplan Meier survival analysis (8.5 months in CD 11b positive group, 12.1 months in negative group, p: 0.436).Conclusion:Our study demonstrated that patients with CD11b expression had lower remission rates with remission induction chemotherapy
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