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

Exhaust thermal energy recuperation in small gas turbine and turbojet engines Küçük gaz türbini ve turbojet motorlarında egzoz termal enerji geri kazanımı

Hakyemez Çatiner, Deniz

ÖZETHer geçen gün artan hava kirliliği ile önem kazanan karbondioksit emisyonunun azaltılmasına yönelik çalışmalar her alanda devam etmektedir. Elektrik üretimi, taşımacılık gibi hava kirliliğinin büyük kısmını oluşturan alanlarda gaz türbini kullanımı yaygındır. Gelişime açık bu motorlar ile verimi arttırmak ve yakıt tasarrufu sağlamak amacıyla çalışılan yöntemlerden biri olan reküperatör tasarımı bu tezin konusudur. Yer ve hava olmak üzere iki farklı mikro gas türbin motoru için borulu ısı değiştirici basınç kaybı ve sıcaklık artışı dikkate alınarak modellenmiştir. Hava tipi motorlarda alan ...Daha fazlası

The design, manufacturing and applications of a novel led-based phototherapy device Yeni Bir LED tabanlı fototerapi cihazının tasarımı, üretimi ve uygulamaları

Yaşar, Büşra

ABSTRACTJaundice is a very common disease in infants. It is caused by an increase in the level of bilirubin in the blood. Its incidence in newborns is around 60-70. When jaundice becomes pathological, it can cause much damage to the body: brain damage, vision loss, lung and kidney dysfunction, and even death. With the increase of bilirubin and its accumulation in the organs, irreversible damage occurs. There are different methods such as exchange transfusion, medication, and phototherapy to remove bilirubin from the environment. Blue light with a wavelength of 430-490 nm is required for light ...Daha fazlası

Optimizing the load carrying performance of the hydraulic guiding elements with finite elements method

Tanyeri, Cem

ÖZETHidrolik ve pnömatik sistemlerin uzun süreli sorunsuz çalışmasında önemli bir etkiye sahip olan kılavuz elemanlar, hidrolik ve pnömatik silindirlerde eksene dik olan kuvvetlere direnerek metal-metal temasını önlemek için kullanılır. Kılavuz elemanlarda en sık kullanılan malzemelerden biri olan kompozit malzemelerde, fiber yönelimleri ve takviye malzeme oranları gibi farklı parametreler, ürünün kalitesini ve mukavemetini büyük ölçüde etkiler. Bu çalışmada, kompozit kılavuz elemanların sonlu elemanlar yöntemi kullanılarak malzemeden ürüne geçiş aşamalarının ve Digimat, Moldex3D ve MSC Marc p ...Daha fazlası

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

A research on the moderating role of ethical leadership in relationship between person- organization fit and organizational commitment in accomodation operations Konaklama işletmelerinde kişi örgüt uyumu ile örgütsel bağlılık arasındaki ilişkide etik liderliğin düzenleyici rolü üzerine bir araştırma

Sidal, Öznur

ABSTRACTEmployees in accommodation establishments are an important production factor and they affect establishment performance and competitive power of the establishment. Because of this reason, efforts should be made in order to attract qualified employees to the organization and to ensure their organizational commitment. One of the important factors for ensuring organizational commitment is the ethical leaders who create environments that support, motivate, encourage and develop their subordinates in organizations with their reliable, honest, fair and principled behaviours. Another factor th ...Daha fazlası

Biochemical Relationship Between Glucose-6-Phosphate Dehydrogenase Deficiency and COVID-19 And Effects Of Glutathione Supplements

ABSTRACT Glucose-6-phosphate dehydrogenase (G6PD) is an enzyme in the pentose phosphate pathway involved in the production of the reduced form of nicotinamide adenine dinucleotide phosphate (NADPH). One of the most common inherited enzyme abnormalities is G6PD deficiency. G6PD enzyme deficiency facilitates human coronavirus infection due to glutathione (GSH) depletion. Depletion of glutathione due to blockage of the pentose phosphate pathway can hardly preserve the oxidative and anti-oxidative balance. GSH protects the body from the harmful effects of oxidative damage from excess reactive oxy ...Daha fazlası

Musculoskeletal Problems in Wheelchair Users: A Review Study

Mobility is the basic need for functionality in human life. Physically disabled people often require mobility aids and wheelchairs are the most commonly preferred assistive mobility devices for enhancing independent functional mobility. Today, powered and manual wheelchair technology is available. Manual wheelchair propulsion necessitates more repetitive loading, but because the human body is not designed for such movement, musculoskeletal and functional issues such as pain and joint limitation may arise among manual wheelchair users. They require more support from their spine, arm, elbow, and ...Daha fazlası

Investigation of Manufacturing and Characterization of Radar Absorbing Hybrid Structures

Mohamed Yousef Ali Issa

Significant development of radar systems after World War II has led to studying the interaction between electromagnetic waves at radar frequencies and different materials. One perspective of these studies is to ascertain ways of decreasing reflected waves. However, the applications have not been limited only to defense applications but also to different fields where human beings are exposed to electromagnetic waves to avoid potential health effects due to exposure to electromagnetic waves. Since the discovery of radar systems, many studies have focused on electromagnetic radiation and absorbin ...Daha fazlası

The effect of fibrous dental barrier membrane on osteogenic differentiation of human mesenchymal stem cells Fibröz yapılı dental bariyer membranın insan mezenkimal kök hücrelerinin osteojenik farklılaşması üzerine etkisi

Utar, Bahar

ABSTRACTBone healing is one of the important issues in clinical areas such as oral, maxillofacial, orthopedic, and plastic surgery. Especially in the implantation process to be performed in dental applications, the structure of the jawbone and the quality of the bone density are very important for the performance of the process. In the area of tissue engineering, there are biodegradable bone implants with biocompatible synthetic polymers that give successful results in many areas. The dental barrier membrane is a synthetic bone graft based on Poly (DL-lactide). It is used in many dental applic ...Daha fazlası

Control of robotic systems used for support in cochlear microrobot operations Koklear mikrorobot operasyonlarında destek için kullanılan robotik sistemlerin kontrolü

Karayaman, Goncagül

ABSTRACTThe rapid development of robot technology has started to be emphasized medical robotics increasingly. The potential of robotic systems to facilitate the work of healthcare workers, minimize human errors, restore function to lost limbs, and enable operations that cannot be performed due to distance or other factors have made this field increasingly popular.Surgical robotics applications are the trend subfield of medical robotics. In these applications, it is aimed to reach the desired task with certain precision and accuracy. Therefore, performance of the control system is very crucial ...Daha fazlası

A vehicle routing problem based scenario analysis for optimum siting of municipal solid waste transfer stations Belediye katı atık aktarma istasyonlarının optimum yerleşimi için araç rotalama problemine dayalı senaryo analizi

Höke, Milas Ceren

ABSTRACTThe management of public services requires an in-depth decision-making method to provide the intended functionality and service life. Municipal solid waste management is indeed one of the most challenging tasks of local municipalities and currently occupies a substantial portion of the overall municipal expenses. In this study, an entirely geographic information system (GIS) based facility siting method is developed to aid governmental bodies in the decision-making process to site such facilities. The proposed method is applied to site a transfer station (TS) in the southeastern region ...Daha fazlası