148 research outputs found
Dr. Yucel Yanikdag – Faculty Author Interview
No full textDr. Yucel Yanikdag, Associate Professor of History discusses his new book, Healing the Nation: Prisoners of War, Medicine and Nationalism in Turkey, 1914-1939, published recently by Edinburgh University Press. In this book, he explores how Ottoman prisoners of war and military doctors of the First World War discursively constructed their nation as a community, and at the same time attempted to exclude certain groups from that nation. Yanikdag aims to broaden the discussion of nationalism to explore how ideological and biological factors influenced each other
Innovations in Agronomic Management for Adaptation to Climate Change in Legume Cultivation
No full textClimate change has significant impacts on agriculture and has the potential to further impact it through changing rainfall patterns, drought, floods, increases in average high temperature, and other climatic factors. The negative effects of these changes are expected to be more common than positive effects. Grain and forage legumes play an important role in agriculture by providing protein-rich food and feed. In parallel with the rapidly increasing world population, the need for food is also increasing. However, the limited possibilities of expanding the farm lands bring serious problems to agricultural production today. Until now, the only way to increase agricultural production was to obtain more products per unit area. However, the studies and methods applied in this direction bring some drawbacks. The biggest success in agriculture in the future is to achieve the desired increase in production by reducing the effect of climate change. This can only be possible with sustainable agricultural methods that will be directly helpful in promoting an appropriate production system. Developing resistant/tolerant legume crop cultivars suitable for abiotic stress conditions and wide adaptation as well as development of suitable agronomic approaches must be implemented globally. These approaches will improve the production of sufficient and quality foodstuffs, which are needed by the rapidly growing world population, at affordable costs, and the protection of the environment and natural agricultural resources
Complications of endoscopic surgery of the pituitary adenomas: analysis of 570 patients and review of the literature
No full textEndoscopic transsphenoidal surgery is emerging as a minimally invasive and maximally effective procedure for pituitary adenomas. In this report we analyzed the complications in 624 procedures of endonasal transsphenoidal endoscopic surgery in the treatment of 570 patients with pituitary adenomas. The leading author (MB) operated pituitary adenomas via pure endoscopic endonasal transsphenoidal surgery between January 2006 and August 2011 at the Hacettepe University, Department of Neurosurgery in Ankara. Complications were assessed in 624 surgical procedures under five groups; rhinological, CSF leaks, infection, vascular and endocrinologic complications. We observed a total of 76 complications (12.1%). Rhinological complications occurred in 8 patients (1.3%): 4 epistaxis (0.6%) and 4 hyposmia (0.6%). Postoperative CSF leaks occurred in 8 patients (1.3%), and infectious complications occurred in 8 patients: 3 cases of sphenoidal sinusitis (0.4%), 5 cases of meningitis (0.8%). Only 1 case of internal carotid aneurysm rupture during the opening of sellar floor (0.16%) was observed. Endocrinologic complications occurred in 51 (8.1%) patients: Anterior pituitary deficiency in 12 (1.9%), transient diabetes insipidus (DI) in 29 (4.6%), permanent DI in 3 (0.4%) and inappropriate antidiuretic hormone secretion syndrome occurred in 7 (1.1%). There was no mortality directly related to the surgical procedure. The complication rates observed in our study suggests that the endoscopic pituitary surgery is at least as safe as microscopic transphenoidal surgery. These rates were obtained with due experience and well-coordinated teamwork. To further improve these rates, new technological developments will be helpful
Characterization and comparison of mine wastes in Can Coal Basin, northwest Turkey: a case study
No full textThe Can Coal Basin is a major coal-producing site in northwest Turkey that has faced acid mine drainage problems since the 1980s. This study characterized and compared mine wastes from the Etili and Comakli open-pit coal mines in the Can Coal Basin physically, mineralogically, and geochemically for acid mine drainage potential and metal(loid) mobility. Mineralogical analysis determined pyrite to be the major sulfide mineral in the Etili and Comakli coal and mine wastes, while dolomite and calcite were abundant in the mine wastes from the Comakli site. Concentrations of Al, As, Mn, and Pb in these mine wastes are higher than in Turkish and world coals. The enrichment factor showed moderate enrichment of Pb and significant enrichment of As in the Etili and Comakli mine wastes, respectively. Static tests indicated acid generation potential in all Etili and some Comakli mine wastes. The modified synthetic precipitation leaching procedure revealed that greater concentrations of Al, Fe, Mn, Ni, Pb, and SO42- were released from pyrite-rich mine wastes. Physical, mineralogical, and geochemical factors affecting acid mine drainage were highly variable within and between sites. Increasing concern over significant environmental health effects of low-pH, metal(loid)-polluted mine wastes necessitates remediation of the mine sites.Scientific Research Projects Coordination Unit of Canakkale Onsekiz Mart University [FBA-2016-759]This research was partly supported by the Scientific Research Projects Coordination Unit of Canakkale Onsekiz Mart University under FBA-2016-759 numbered project. The author thanks to Canakkale Onsekiz Mart University Science and Technology Application and Research Center for SEM-EDX analysis. The author is grateful to Assoc. Prof. Mehmet Ali Yucel for his help during field studies, Dr. Burcu Ileri for her assistance in laboratory work and Dr. Mehmet Karadeniz for his constructive comments. Furthermore, the author special thanks to the four anonymous reviewers for their valuable suggestions
Development of independent MU/treatment time verification algorithm for non-IMRT treatment planning: A clinical experience
No full textTreatment of acromegaly by endoscopic transsphenoidal surgery: surgical experience in 214 cases and cure rates according to current consensus criteria
No full textObject. Acromegaly is a disease that has significant morbidity and mortality related to high levels of growth hormone (GH) and insulin-like growth factor I (IGF-I), and is usually caused by pituitary adenomas. The goal in this study was to investigate the role of endoscopic transsphenoidal surgery and surgical experience in the treatment of OH adenoma cases in relation to surgical results and hormonal cure rates, and to perform a review of the literature
An experimental study on friction reducing polymers in turbulent pipe flow
No full textAn experimental study was conducted to search the reduction of friction in fully developed turbulent pipe flow using different types of polyacrylamides as friction reducing polymers. Pressure drop measurements determined the friction reduction. Three different polymer types Superfloc A110, Superfloc A130 and Superfloc A150 were used to examine the effect of polymer concentration, Reynolds number and polymer type on friction reduction. The Darcy friction factor was obtained for each polymer type at the polymer concentration ranging from 0 to 500 wppm and a Reynolds number range of 10000-80000. It was observed that friction factor decreased with increment in polymer concentration and Reynolds number for each polymer. Higher molecular weight polymers are more effective at reducing friction. With increasing concentration of polymer, the measured data approaches the Virk asymptote, which represents the maximum friction reduction limit by the polymers. The percentage of friction reduction increased with increasing concentration of polymer up to 100 wppm for each polymer type and then began to decrease for polymer concentrations higher than 100 wppm. An empirical formula was obtained to calculate the Darcy friction factor as a function of Reynolds number and polymer concentration for Superfloc A110.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Marine and Transport Technolog
Genotypic and Phenotypic Variability for Yield and its Components in Normal and Late Sown Chickpea (Cicer arietinum L.)
No full textChickpea (Cicer arietinum L.) is one of the important legumes widely grown for dietary proteins in semi-arid Mediterranean climatic conditions. The main goal of any breeding programs in the world is to produce high yield and better quality genotypes for farmers and commercial growers to be released as cultivars. Present research has been conducted to select more desirable characteristics that may contribute to the improvement of drought tolerant chickpea. Thirty-two chickpea genotypes along with two control varieties were evaluated in winter and late sowing conditions in 2015 and 2016, in randomized complete block design with three replications. Phenotypic coefficients of variation were found to be higher than genotypic coefficients of variation for all the traits. The highest heritability along with high genetic advance was found for hundred seed weight followed by podding day, plant height, flowering day and first pod height in normal and stress conditions. These traits can be improved by giving special attention during selection
Performance of some winter chickpea (Cicer arietinum L.) genotypes in mediterranean conditions
No full textThe research was carried out to determine suitable chickpea (Cicer arietinum L.) genotypes with large seed and high yield to be able to grown in winter. Yield and yield components were investigated in 22 chickpea genotypes, which were obtained from ICARDA, and Aydin-92 (check) in 1999-2000, 2000-2001 and 2003-2004 growing seasons. According to the combined analysis of three years, seed yield was ranged from 1582 to 2132 kg ha-1. X 93 TH 56-3/2, and FLIP 90-58 C genotypes were determined to be adaptable to Mediterranean conditions and produce larger seeds and higher yield than Aydin-92. Besides, significant and positive correlations between seed yield and total pod number, full pod number, seed number, seed weight, and harvest index were determined in this research
Forage Yield and Quality Attributes of Berseem Clover Genotypes under Mediterranean Climate
No full textIt is quite significant to develop annual and high-yield forage legumes to be pure-sown or intercropped with graminae species in winter cropping systems of Mediterranean region. In this sense, berseem clover is considered as a significant species for Mediterranean region. Therefore, this study was conducted to determine yield and herbage quality attributes of berseem clover (Trifolium alexandrinum L.) genotypes in Çukurova region with dominant Mediterranean climate. Experiments were conducted over the experimental fields of Eastern Mediterranean Agricultural Research Institute (Doğankent%252FAdana) in winter intermediate cropping system (November-April) of 2010-11 and 2011-12 growing seasons. Experiments were carried out in randomized blocks design with 3 replications. In the first and second year of the experiments, green herbage (GH) yields varied respectively between 53.3-79.7 and between 22.7-32.3 t%252Fha%253B dry matter (DM) yields varied respectively between 7.26-12.02 and 5.16-7.42 t%252Fha%253B crude protein (CP) ratios varied respectively between 11.37-15.39 and between 15.22-18.88%25%253B digestible dry matter (DDM) ratios varied respectively between 61.10-68.08 and between 56.84-67.70%25, acid detergent fiber (ADF) ratios varied respectively between 27.22-41.45 and between 23.07-31.41%25%253B relative feed values (RFV) varied respectively between 99.3-155.0 and between 146.5-190.5. In both years, genotypes 3, 8, 15, 16, 17 and18 had greater DM yields than the standard cultivar and the other genotypes. These genotypes were also prominent w-for herbage quality attributes. Genotype 18 was registered under the name of DERYA in 2015 and the other promising genotypes are still being used in on-going breeding studies
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