Başlık için Fen Fakültesi listeleme
Toplam kayıt 1564, listelenen: 1469-1488
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Uluslararası Alg Mantar ve Bitki Adlandırma Yasası
(Hacettepe Üniversitesi, 2015)Canlıları sınıflandırmada moleküler verilerin ağırlık kazandığı ve filogenetik araştırmaların daha da güncel olduğu bu dönemde, geleneksel taksonomi bugün de yaşambilimin omurgası niteliğindedir. Yeryüzündeki biyoçeşitliliğin ... -
Uniform Ergodicities And Perturbation Bounds Of Markov Chains On Ordered Banach Spaces
(Iop Publishing Ltd, 2017)In this paper, we consider uniformly mean ergodic and uniformly asymptotical stable Markov operators on ordered Banach spaces. In terms of the ergodicity coefficient, we show the equivalence of uniform and weak mean ... -
Universal Modules of Differantial Operators
(Fen Bilimleri Enstitüsü, 2015)This thesis is concerned with universal differential operator modules of order n. Let R be a commutative k-algebra where k is an algebraically closed field of characteristic zero. Let m and n be positive integers such that ... -
Unliganded Estrogen Receptor-Alpha Activates Transcription Of The Mammary Gland Na+/I- Symporter Gene
(Academic Press Inc Elsevier Science, 2006)The function of sodium iodide symporter (Na+/I- symporter, or NIS) in mammary epithelial cells is essential for the accumulation of I- in milk; the newborn's first source of I- for thyroid hormone synthesis. Furthermore ... -
Unveiling Cryptic Species Of The Bumblebee Subgenus Bombus S. Str. Worldwide With Coi Barcodes (Hymenoptera: Apidae)
(Taylor & Francis Ltd, 2012)Bumblebees of the subgenus Bombus s. str. dominate (or used to dominate) many north temperate pollinator assemblages and include most of the commercial bumblebee pollinator species. Several species are now in serious ... -
Updates On The Distribution And Diversity Of Sand Flies (Diptera: Psychodidae) In Romania
(2019)Background Phlebotomine sand flies (Diptera: Psychodidae) are haematophagous insects that transmit the protozoan parasite Leishmania infantum (Kinetoplastida: Trypanosomatidae), the main causative agent of both zoonotic ... -
Upper Branch Nonstationary Modes Of The Boundary Layer Due To A Rotating Disk
(Pergamon-Elsevier Science Ltd, 2001)A treatment of asymptotic calculation of upper branch nonstationary instsability modes is undertaken in the boundary layer flow due to a. rotating disk. A numerical spectral solution of the eigenvalue problem shows good ... -
Using Next-Generation Dna Sequence Data For Genetic Association Tests Based On Allele Counts With And Without Consideration Of Zero Inflation
(2016)The relationship between genetic variability and individual phenotypes is usually investigated by testing for association relying on called genotypes. Allele counts obtained from next-generation sequence data could be used ... -
Using Non-Traditional Writing As A Tool In Learning Chemistry
(Eurasia, 2013)This study investigated the effect of using a non-traditional writing task and different audiences on 9th grade students' conceptual understanding of a chemistry unit on mixture. 524 students instructed by 3 chemistry ... -
Using Of Nanofiber Based Electrodes For Detection Of Organic Molecules
(Fen Bilimleri Enstitüsü, 2018)The disposable electrodes of the diabetes sensors used in our country are in the case of external dependency due to the necessity of importation. In addition, these types of electrodes are only capable of measuring the ... -
Uv-Vis, Ir And Xps Analysis Of Uv Induced Changes In Pvc Composites
(Elsevier Science Bv, 1999)PVC undergoes a high degree of dehydrochlorination when exposed to energetic photons. The released HCl (acid), however, can be trapped if a suitable trapping material (base) is also enclosed within the solid matrix as a ... -
Uyarlanabilir Küme Örneklemesinde Oransal Tahminler
(Fen Bilimleri Enstitüsü, 2018)In this study, simple and ratio estimators of Horvitz-Thompson and Hansen-Hurwitz are investigated in the literature in order to obtain an estimate of population mean in adaptive cluster sampling. These estimators do not ... -
Uygulama Alanlarına Yönelik Entegre Kromofor Sistemlerin Geliştirilmesi
(Fen Bilimleri Enstitüsü, 2020-01)The molecular systems in which the same or different chromophores/fluorophores are integrated to each other both widen the application fields of chromophores and enable to reach the preferred properties in the current ... -
Uygunluk Analizinde Logaritmik Doğrusal Modellerin Kullanımı: Televizyon İzleme Eğilimleri Üzerine Bir Uygulama
(Fen Bilimleri Enstitüsü, 2014)One of the methods used for analyzing categorical variables arranged in contingency tables is correspondence analysis. Correspondence analysis is named as multiple correspondence analysis for three and higher dimensional ... -
Uzun Dönem Bakım Sigortasında Uzun Ömürlülük Riskinin Fiyatlandırılması
(Fen Bilimleri Enstitüsü, 2017)An increase in the incidence and duration of chronic illnesses have occurred with the extension of the expected life span. Chronic diseases lead to deterioration of the physical condition of the patients. These disorders ... -
Uzun Süreli Çalışmalarda Ma(1) ve Arma(1,1) Otokorelasyonlu Hatalara Sahip Doğrusal Karma Etkiler Modelleri için Örneklem Büyüklüğünün Belirlenmesi
(Fen Bilimleri Enstitüsü, 2012)The aim of the study is to determine sample sizes for the number of subjects and the number of repeated measures for a Linear Mixed Effects Model (LMM) with random intercept and slope in the analysis of longitudinal data ... -
Üç Dişli Schiff Bazı Içeren Rutenyum Komplekslerinin Sentezi ve Olefin Metatez Reaksiyonlarında Katalitik Aktifliklerinin Araştırılması
(Fen Bilimleri Enstitüsü, 2014)Olefin Metathesis is an efficient synthetic method used in building organic and polymeric material chemistry, where new carbon carbon double bonds are formed. Among the metathesis reactions, ring opening metathesis ... -
Üçlü Blok Poli(Etilen Glikol)-b-[Poli(Laktit-Ko-Serin-Nh2)] Polimerlerin Sentezi ve Karakterizasyonu
(Fen Bilimleri Enstitüsü, 2023-07-05)The aim of this study was to synthesize PLDSNH2-PEG-PLDSNH2 block copolymers in three stages. Firstly, LDS, LD2S, and LD3S monomers were synthesized by reacting Boc-serine-OH amino acid with lactide, heated at 95°C for ...