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Search Results: 1 - 10 of 185 matches for " Uzay Yasar "
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Calcifying nanoparticles associated encrusted urinary bladder cystitis
Tomislav M Jelic,Rod Roque,Uzay Yasar,Shayna B Tomchin
International Journal of Nanomedicine , 2008,
Abstract: Tomislav M Jelic1, Rod Roque1, Uzay Yasar2, Shayna B Tomchin1, Jose M Serrato2, Samuel G Deem3, James P Tierney3, Ho-Huang Chang11Department of Pathology Charleston Area Medical Center, Charleston WV, USA; 2Urology Center of Charleston, Charleston WV, USA; 3Urologic-Surgical Assoc. of Charleston, Charleston WV, USAAbstract: Encrusted cystitis is a subtype of chronic cystitis characterized by multiple calcifications in the form of plaques located in the interstitium of the urinary bladder mucosa and frequently associated with mucosal ulcers. It is a very rare disease of controversial etiology. Our transmission electron microscopy of the calcified plaques of encrusted cystitis has revealed that the smallest formed particles (elementary units) of these calcifications are electron-dense shells surrounding an electron lucent core, diagnostic of calcifying nanoparticles (previously called nanobacteria). We pioneer the notion that calcifying nanoparticles are the causative agents of encrusted urinary bladder cystitis.Keywords: calcifying nanoparticles, nanobacteria, encrusted cystitis
Integrated pest management of potatoes  [PDF]
Yasar Alptekin
Agricultural Sciences (AS) , 2011, DOI: 10.4236/as.2011.23039
Abstract: The potato (Solanum tuberosum L.) is the most important dicotyledonous source of human food. It ranks fifth major food crop of the world, exceed only by the grasses such as wheat, rice, maize, and barley. It is characteristically a crop of the cool, temperate regions or of elevation of approximately 2,000 m or more in the tropics. It requires cool nights and well drained soil with adequate moisture and does not produce well in low altitude, warm, tropical environment. Commercial production of most potatoes is primarily through vegetative propagation by means of lateral buds formed on the tuber, a modified stem. Trough such vegetative propagation, many diseases are transmitted from generation to generation. Suppression of such diseases and reduction of yield losses due to disease are a necessary part of increasing the food supply. The principles, strategies, and tactics of plant disease management are important to preventing yield losses. Integrated pest management (IPM) may supply effective control of the potato pests including aphids (vector of some viruses), Verticillium wilt blackleg, bacterial ring rot, Rhizoctonia, Phytophthora infestans (late blight) and several weeds (night shades, pigweeds, lambs quarters, and annual grasses). It includes regular inspection for healthy seed or nursery, crop production, correct identification of the problem, cultural practices (crop rotation, sanitation etc.), biological control, soil fumigation (if necessary), seed or nursery stock treatment and disinfestations of cutting tools. In this review, pest management methods of potatoes included in IPM was summarized.
KANADA M MARLIK MERKEZ (KMM): KURULU SüREC , ETK NL KLER VE M MAR BET MLEMES
Ali Uzay PEKER
Middle East Technical University Journal of the Faculty of Architecture , 2005,
Abstract:
Attention Competition with Advertisement
Uzay Cetin,Haluk O. Bingol
Physics , 2012, DOI: 10.1103/PhysRevE.90.032801
Abstract: In the new digital age, information is available in large quantities. Since information consumes primarily the attention of its recipients, the scarcity of attention is becoming the main limiting factor. In this study, we investigate the impact of advertisement pressure on a cultural market where consumers have a limited attention capacity. A model of competition for attention is developed and investigated analytically and by simulation. Advertisement is found to be much more effective when attention capacity of agents is extremely scarce. We have observed that the market share of the advertised item improves if dummy items are introduced to the market while the strength of the advertisement is kept constant.
Iterated Prisoners Dilemma with limited attention
Uzay ?etin,Haluk O. Bingol
Computer Science , 2014, DOI: 10.5488/CMP.17.33001
Abstract: How attention scarcity effects the outcomes of a game? We present our findings on a version of the Iterated Prisoners Dilemma (IPD) game in which players can accept or refuse to play with their partner. We study the memory size effect on determining the right partner to interact with. We investigate the conditions under which the cooperators are more likely to be advantageous than the defectors. This work demonstrates that, in order to beat defection, players do not need a full memorization of each action of all opponents. There exists a critical attention capacity threshold to beat defectors. This threshold depends not only on the ratio of the defectors in the population but also on the attention allocation strategy of the players.
Resistance in Teacher Education in the Context of Educational Drama
Mustafa Yasar
Pakistan Journal of Social Sciences , 2012, DOI: 10.3923/pjssci.2010.371.379
Abstract: In teacher education literature, there is a special attention on the resistant nature of preservice teachers. There is a growing list of unconventional teaching methods in teacher education programs to deal with resistance. Educational drama is only one of these alternative methods that teacher educators utilized in their classrooms to facilitate learning and development of the future teachers. This ethnographic case study explored the nature of resistance in a teacher education classroom among preservice teachers toward the teacher education program, teacher educators and their choice of educational drama as instructional method. Data collection methods included semi-structured individual and group interviews, participant observation in the local settings and WebCT discussions. The data were collected during one course over 10 week period. The participants were one teacher educator and 16 preservice teachers enrolled in Masters in Education program at a regional campus of a Midwestern state university in the USA.
In Vitro and in Vivo Variability in the Nutritional Compositions of Wheat Varieties
Sulhattin Yasar
Pakistan Journal of Nutrition , 2002,
Abstract: The present study involved in the determination of non-starch polysaccharides (NSP) of 15 wheat varieties and their in vitro and in vivo nutritional characteristics. The determination of in vitro viscosity, NSP, acid detergent fibre (ADF), neutral detergent fibre (NDF), crude protein and bushel weight were done for the samples of wheat varieties. There were significant differences between the samples of varieties in respect of these parameters. Especially, high correlations were estimated between the in vitro viscosity, NSP, ADF, NDF and bushel weight with regard to wheat varieties: For instance, the increased in vitro viscosity of 15 wheat varieties was associated with the increased ADF and NSP and the decreased bushel weight of wheat varieties. All the varieties were classified into 4 different groups according to their contents of NSP, bushel weight and in vitro viscosity. An animal digestibility trial was conducted with only one wheat variety from each of the four groups with broiler chickens from 14 d old to 42 d old. These varieties were Gun95, Cakmak79, Gerek79 and Kundura1149. Animals fed with all diets based on wheat varieties consumed significantly higher feed than the animals fed with a control diet based on corn grain. Especially, Gun95 and Cakmak79 varieties caused to increased feed intake compared with the other two varieties. All wheat based diets lead to significantly low weight gain, worsened feed conversion ratio, longer digestive tract and heavier digestive tract of animals in comparison with their counterpart of control diet. In addition, all wheat-based diets caused increased amount of abdominal fat and reduced carcass yield. On the other hand, there were some significant differences between the diets of wheat varieties in some of the above measured parameters. For instance, the lowest carcass yield was obtained from the Kundura1149, Gerek79, Cakmak79 and Gun95, respectively. Unlikely, the lowest abdominal fat was obtained from Gun95, Cakmak79, Gerek79 and Kundura1149, respectively. There were no significant differences in the digestibility of dry matter and crude protein between the wheat varieties. The NSP digestibility at both 21d old age and 42 d old age were numerically found to be higher for Gun95 and Cakmak79 varieties only. Some wheat varieties have a greater nutritional potential in both animal and human nutrition.
OPEN ACCESS AND INSTITUTIONAL REPOSITORIES IN TURKEY
Yasar Tonta
Trends in Information Management , 2008,
Abstract: The development of the "Open Access- (OA) movement since early 1990s has been radically changing the scientific communication landscape. Within the last decade more universities and research institutions are recommending their scholars to make their works freely accessible through their web sites and/or institutional repositories (IRs). The research impact of OA articles as measured by the number of citations is much higher than that of printed ones. Several universities have developed policies to mandate OA and set up IRs to guarcntee public access to the output of publicly funded research projects. Refereed journal articles, conference papers, theses and dissertations, and courseware (i.e., lecture notes, audio and video records of lectures' can be given as examples of such research output. This paper defines the concepts of OA and IR and briefly reviews the current situation of IRs in Europe. It then chronicles the development of IRs in Turkey. The paper concludes with some recommendations.
VIRTUAL OR PHYSICAL: In-service and Pre-Service Teacher’s Beliefs and Preferences on Manipulatives
Yasar AKKAN
The Turkish Online Journal of Distance Education , 2012,
Abstract: Although the use of physical manipulatives, which have been emphasized to use in preschool education program and primary and secondary mathematics curriculum, in classroom environments is old, it is very new to use virtual manipulatives in classroom environments. The selection, preparation, and the integration to learning environments of both types of manipulatives are the most basic duties of teachers. However, the experiences, of using the physical and virtual manipulatives in course environments, of teachers and pre-service teachers are influenced by beliefs about the nature, teaching and learning of mathematics. The aim of this study is to determine and compare the beliefs of teachers and pre-service teachers in different branches for the use of virtual and physical manipulatives in mathematics education. For this purpose, 148 teachers, in the provinces of Trabzon, Kars and Gümü hane, and 228 pre-service teachers, in the Education Faculties of Karadeniz Technical University and Kafkas University, have been applied two types of scales and interviews have been conducted with 40 teachers and pre-service teachers selected from that sample. Frequencies, percentages and arithmetic averages have been used to analyze the data. As a result, the majority of teachers and pre-service teachers have been identified to carry positive beliefs for the use of virtual and physical manipulatives in mathematics education and they have expressed that they desire to use both types of manipulatives more in the future.
Effects of alcohol-gasoline blends on exhaust and noise emissions in small scaled generators
A. Yasar
Metalurgija , 2010,
Abstract: In this study, the effect of methanol or butanol addition to gasoline on exhaust emissions and noise level has been experimentally investigated. Results showed that the concentrations of CO and NOx emissions were decreased depending on the higher alcohol contents and the carbon monoxide concentration of gasoline was higher than that of methanol or butanol-gasoline blends for all engine loads. It was determined that content of the HC was decreased at higher engine load but noise level was increased.
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