Sarkis'siz Sarkis tartışması

Taha Toros Arşivi, Dosya No: 454-Sarkisİstanbul Kalkınma Ajansı (TR10/14/YEN/0033) İstanbul Development Agency (TR10/14/YEN/0033

Preperation Of Oil-based Polyurethanes For Biomedical Applications In The Absence Of Solvent And Catalyst

Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2007Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2007Poliüretanlar biyomateryaller olarak oldukça öneme sahiptirler. Çünki, poliüretanlar biyouyumludurlar ve çok iyi mekanik özelliklere sahiptirler. Kateter, kalp pompası, kısa dönem implant, hastane yatağı, cerrahi kumaş ve yara örtüsü olarak kullanılabilirler. Poliüretanlar, genellikle petrolyum bazlı polioller ve izosiyanatlardan katalizör ve çözücü kullanılarak üretilirler. Biyomedikal amaçlarla üretilecek polimerlerin sentezlenmesinde katalizör ve çözücü gibi biyouyumluluğu olumsuz etkileyen maddelerin kullanımı istenmemektedir. Bu nedenle, bu çalışmada medikal amaçlarla kullanılacak yağ bazlı poliüretanların kütle polimerizasyonu yöntemi ile katalizörsüz sentezlenmesi amaçlanmıştır. Çalışmada, keten yağı ve gliserinden elde edilen hidroksil gruplarına sahip ara ürün hidroksil kaynağı olarak kullanılmıştır. İzosiyanat bileşeni olarak ise toluene diizosiyanat ve hegzametilen diisosiyanat kullanılmıştır. Polimerlerin yapıları NMR ve FTIR spektroskopi ile aydınlatılmıştır. Son ürünlerin molekül ağırlıklarının belirlenmesinde GPC, termal özelliklerin belirlenmesinde TGA ve DSC kullanılmıştır. Reaksiyonlar hem katalizörlü hem de katalizörsüz gerçekleştirilmiş, veriler reaksiyon kinetiği yönünden değerlendirilmiştir. Çalışmada polimerizasyon reaksiyonlarının izlenmesi için, yaş izosiyanat tayinine alternatif olarak FTIR ile kantitatif analiz yöntemi geliştirilmiştir. Tüm verilerin değerlendirilmesi sonucu, biyomedikal amaçlarla kullanılabilecek yağ bazlı poliüretanların kütle polimerizasyonu yöntemiyle katalizörsüz üretilebileceği sonucuna varılmıştır.Polyurethanes have great importance as biomaterials because they are biocompatible and have very good mechanical properties. They can be used as catheters, heart-assist pumps and short term implants, hospital bedding, surgical drapes and wound dressing. Polyurethanes are generally produced from petroleum based polyols and isocyanates in the presence of catalyst using the solvent method. Catalyst and solvent have negative effects for using polymers as biomedical applications. The aim of this thesis is synthesis of oil-based polyurethanes in the absence of catalyst and solvent in order to obtain polymer in medical purity. Oil-based hydroxyl containing material was used as hydroxyl source. Toluene-2.4-diisocyanate and hexamethylene diisocyanate were used as isocyanate component. NMR and FTIR were used for structural characterization of polymers. GPC was used for determination of molecular weight. TGA and DSC were used for investigation of thermal properties. Additionally, the reaction kinetics was investigated by analytic method and FTIR measurements. Reaction kinetic was examined for catalyzed and uncatalyzed reactions. The consumption of raw materials was monitored and the amount of isocyante in reaction mixture was determined by FTIR. After evaluation of the all obtained data, it was reached a conclusion that it is possible to synthesize polyurethanes in the absence of catalyst and solvent for biomedical applications.Yüksek LisansM.Sc

Profil klienta korzystającego

Rozwój instytucji parabankowych w dzisiejszych czasach staje sie coraz bardziej konkurencyjnym obszarem działalnosci na rynku usług finansowych. Instytucje parabankowe w coraz wiekszym stopniu zrzeszaja coraz to wieksze grupy klientów. Niniejsze opracowanie ma na celu zaprezentowanie profilu klienta korzystajacego z usług instytucji parabankowych. Wykorzystujac wyniki badania Komisji Nadzoru Finansowego zleconego firmie TNS Pentor, a tak e wyniki badania ankietowego przeprowadzonego przez autorke, okre- slono cechy społeczenstwa, które w głównej mierze maja wpływ na wybór instytucji swiadczacej usługi po yczkowo-depozytowe

Halk resmi, minyatür geleneği ve Gül Derman'ın yapıtları

Taha Toros Arşivi, Dosya No: 10-Gül Dermanİstanbul Kalkınma Ajansı (TR10/14/YEN/0033) İstanbul Development Agency (TR10/14/YEN/0033

Antinomies of Globalization

The defining antinomy of the post-2008 crash phase is argued to be the one between neoliberalism and populism. This essay aims to complicate the terms of this antinomy and offers a reading that problematizes the association of neoliberalism with internationalism and globalization on the one hand and populism with nationalism and anti-imperialism on the other. Not only internationalism in its historical origins is an anti-imperialist concept but also today we can easily discern how reactionary forms of populist nationalisms are made possible by globalization of finance—a hallmark of neoliberalism. The essay concludes with a discussion of the possibility of a politics of de-growth as a trans-local form of counter-populism

ED to Telemetry Bed: Optimizing Nurse Communication & Decreasing Team Frustration

PROBLEM: According to the Institute of Medicine, boarding inpatients in the emergency department (ED) can result in an increased risk for medical errors, delay in treatments, and decreased quality of care. The goal is to move the patient to the hospital bed within 60 minutes from when an order is written for admission. The current average monthly compliance for ED throughput and admission to the inpatient bed is at 45% compared to the target of 70%. Lack of standardization during handoff can lead to delays, miscommunication and causes team frustration. CONTEXT: In 2022, this community hospital’s ED microsystem had limited capacity, and increased ED volume compared to 2021. The hospital measures ED admissions to inpatient bed as a performance metric. One microsystem and one shift on a telemetry (tele) unit were identified to test and analyze new approaches to reduce delays, optimize nurse communication, decrease team frustration, and create a realistic business case. A 15% improvement was projected to yield an increase in efficiency by $60,346.44 for the tele unit. The ED’s loss for six months was estimated at$1,011,832.70 so a 15% improvement could yield a benefit of $151,774.90. INTERVENTIONS: In-person hand-off between the ED and the telemetry nurse was implemented. Team Strategies and Tools to Enhance Performance and Patient Safety (TeamSTEPPS) evidence-based tool SBAR (Situation, Background, Assessment, Recommendation) was adopted to standardize reporting. The change was initially implemented on one shift, utilizing small test cycles, and was later established as a standard of communication on all shifts. MEASURES: The primary outcome measure was to track the ED to bed metric before and after each test of change with a target of 15% improvement over six months. The process measure included measuring nurse satisfaction with the current handoff process and the rate of compliance with the use of the SBAR tool on one shift (evenings). By July 1st, 2022, 65% of admissions on the second shift on the Telemetry unit were to experience a 1:1 handoff between the ED and the Telemetry nurse within 60 minutes from the time admit order is written utilizing the standardized TeamSTEPPS SBAR tool. RESULTS: Over six months, the practice change resulted in partial improvement. The time it took for the patient to leave the ED, from when the bed was assigned, decreased from 76 minutes to 26 minutes from January to April 2022. Interim data indicates the overall outcome measure remained unchanged at 45%. Standardization led to the timely start of care interventions on the telemetry unit leading to increased care team satisfaction. CONCLUSION: A Clinical Nurse Leader can effectively lead and collaborate between different microsystems to test and implement evidence-based tools and strategies to improve clinical, staff, and operational outcomes

Plastik sanatlar:Bedri Baykam'ın ayrıcalığı ve sorumluluğu

Taha Toros Arşivi, Dosya No: 103-Bedri Bayka

'1950-2000' TC Merkez Bankası Çağdaş Türk Sanatı Koleksiyonu Ankara'da AKM'de:izleyici önemseyen bir sergi

Taha Toros Arşivi, Dosya No: 103-Bedri Bayka