Developing peptide modified novel bioactive materials for bone tissue engineering applications Kemik doku mühendisliği uygulamaları için peptit ile modifiye edilmiş özgün biyoaktif malzemelerin geliştirilmesi

Pulat, Günnur

ÖZETKemik doku mühendisliğinde, hücre dışı matris (HDM) benzeri peptitler kullanılarak biyolojik tanıma yoluyla belirli bir hücresel yanıt ve kemik dokusu oluşturabilen biyobenzer yapı iskeleleri geliştirilebilir. Bu tezin ana odak noktası, kemik dokusu mühendisliği için yapı iskeleleri tasarlamak üzere peptit ile modifiye edilmiş yeni bir biyobenzer yaklaşımın geliştirilmesidir.ABSTRACTIn bone tissue engineering, biomimetic scaffolds that can generate a specific cellular response and form bone tissue through biological recognition can be developed by using extracellular matrix (ECM) mimetic p ...Daha fazlası

Abstract Book of 4. International Conference on Medical Devices (ICMD’2021)

Çevrimiçi (xviii, 39 sayfa)

A Systematic Review on Intragastric Balloons and TransPyloric Shuttle in Obesity Treatment

Endoscopic bariatric procedures in the treatment of obesity have become widespread in recent years. In this systematic review, it was aimed to assess the role of intragastric balloons and transpyloric shuttle in the treatment of obesity. A comprehensive search was conducted using the search terms “Intragastric Balloon” and “TransPyloric Shuttle” in PubMed, Cochrane Library and Web of Science databases from 1st of December to 25th of December in 2020. Twenty-seven clinical studies (24 studies on intragastric balloons and 3 studies on transpyloric shuttle) were assessed. It is clear that both me ...Daha fazlası

Surface modification of micronized quartz powders and investigation of additives as filling material in polymer matrix composite materials Mikronize kuvars tozlarının yüzey modifikasyonunun yapılması ve polimer matrisli kompozit malzemelerde dolgu malzemesi olarak incelenmesi

Akyüz, Orhan

SUMMARYThe interfacing compatibility of the matrix material with the filler material in composite materials is one of the most important factors affecting the performance of the composite. A wide variety of chemical methods are applied to increase the interfacial compatibility of the matrix material with the filler material. The most important of all is the surface modification technique, in which surface-active agents are used to reinforce the matrix-filler bond and where a chemical process is applied to the surface of the filler material.This technique is based on the chemical treatment of t ...Daha fazlası

Natural Language Processing and Machine Learning-Based Medical Decision Support Application Concept Design for Gastroesophageal Reflux Disease

Tevfik Aşgın

This text discusses a project for a concept design that aims to help doctors better diagnose and treat Gastroesophageal Reflux Disease (GERD) using the latest methods in artificial intelligence (AI), specifically LangChain and ChatGPT-4 from OpenAI. The project includes creating a system for GERD, using AI to work with medical data, testing the system with some patient cases, and seeing how well it helps in treating GERD. The project seeks to explore the feasibility of implementing a system that enhances the diagnosis and treatment through the application. 50 cases were generated for evaluatio ...Daha fazlası

Surface Roughness Performance Related to the Direction in Composite Structures Produced by the Fused Filament Fabrication Method and Improve to Surface Roughness

Özlem DOĞRU

Additive manufacturing is used today in different industries to produce prototypes and even final products. Additive manufacturing offers solutions for the fabrication of complex geometries and is preferred for manufacturing parts in a wide variety of applications. The fused filament fabrication (FFF) method is the additive manufacturing method with the most users worldwide. With the developing material science, it has been possible to produce composite structures and even metal products by going beyond the production of pure polymers in the FFF method. The mechanical properties of the materia ...Daha fazlası

Compact rectenna design for RF energy harvesting applications RF enerji hasatlama uygulamaları için kompakt doğrultuculu anten (rectenna) tasarımı

Göçen, Cem

ABSTRACTIn this study, a detailed literature study has been conducted about radio frequency energy harvesting systems, and two different RF energy harvesting system designs are presented operated two different bands. RF energy harvesting systems have been in our lives for more than fifty years. The number of studies carried out on these systems has increased, especially to meet the power requirements of low power consumption devices whose usage is growing with the developing technology in recent years. In the literature, RF energy harvesting systems have been generally designed to operate in t ...Daha fazlası

Characterization of Clay brick materials produced with red mud and nut shell wastes for building applications

Çam, Ata Sadık

In this study, clay based brick with micro pores was developed for thermal insulation in the building materials. Turkey produces about 70% of the world hazelnut production. The aim of this thesis is to reduce the thermal conductivity coefficient by adding organic waste (hazelnut shell) into clay mixture to form porosity during firing of clay bricks. Moreover, it is to maintain the similar mechanical properties by adding inorganic waste (red mud) into clay mixture. The development of a highly porous bricks with applicable mechanical strength will contribute to save energy in the building ...Daha fazlası

Artificial Intelligent Based Segmentation on Medical Imaging

Mahmut AĞRALI

Teknolojinin ve teorik bilginin gelişmesiyle son 20 yıldır günlük hayatımızın her alanında olduğu gibi sağlık alanında da yapay zekâ (YZ)'nın uygulanması giderek artmaktadır. Özellikle koronavirüs (COVID-19) ve iskemik inme gibi toplum sağlığını tehdit eden hastalıkların YZ ile tespit edilmesi sağlık çalışanların iş yüklerini hafifleterek daha doğru tanı sağlamaktadır. Bu hastalıkların tespit edilmesinin yanında medikal görüntü üzerinden hastalık bölgelerinin bölütlenmesi, sağlık çalışanlarına tedavide yardımcı olabilecek bilgi sağlamaktadır. Bununla birlikte medikal görüntü üzerinden b ...Daha fazlası

The Malnutrition Risk and Physical Activities in Home-Dwelling Older Adults During the COVID-19: A Cross-Sectional Study

Objective: During the COVID-19 pandemic, elderly adults’ nutritional habits, physical activity levels and the levels of malnutrition were affected. This study investigated the prevalence of malnutrition and physical fitness and exercise activity levels in home dwelling elderly during the COVID-19 pandemic. Material and Method: This cross-sectional study was conducted with a face-to-face questionnaire on 670 (male: 241, female: 429) home-dwelling older adults with a mean age of 70.66±5.83 years. The nutritional screening and evaluation were performed using Mini Nutritional Assessment (MNA), and ...Daha fazlası

Comparison of Student Satisfaction According to Three Different Education Models in Nursing Education

FEYZA DERELİ | HATİCE YILDIRIM SARI | YASEMİN TOKEM

Objective: The objective of the study is to determine student satisfaction in classical, integrated and problem-based learning education model used in nursing education. Material and Methods: The descriptive-comparative research design study consisted of 621 students from the third and fourth grades (senior-nursing students) in nursing schools with different education models. The data were collected by face to face interview method using the Socio-Demographic Attributes Form and Student Satisfaction Scale. Student Satisfaction Scale consists of the sub-dimensions of instructors, school adminis ...Daha fazlası

Growth of zinc oxide nanostructures on carbon fibers: Production, characterization and photocatalytic properties Çinko oksit nanoyapıların karbon fiber üzerinde büyütülmesi: Üretimi, karakterizasyonu ve fotokatalitik özellikleri

Doğan Tunç, Irmak

ÖZETSon yıllarda, karbon fiber üzerine büyütülmüş çinko oksit nano yapıları, üstünyapısal, elektriksel ve optik özellikle dolayısı ile yoğun olarak çalışılmaktadır. ZnO, geniş band aralığı (3.37 eV) nedeniyle morötesi ışık altında aktive olabilen bir yarı iletken fotokatalizördür. Ancak, çinko oksidin karbon temelli malzemeler üzerinde büyütülmesi veya yapısına metallerin katkılanması ile yasak band aralığının daraltılması ve görünür bölge ışığı altında aktive edilmesi sağlanabilir. Bu bilgiler ışığında, yapılacak çalışmada, çinko oksit nanotellerin, karbon fiber üzerinde hidrotermal yöntem il ...Daha fazlası