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The Effect of Sowing Date and Plant Density on Cotton Yield
Taner Bozbek,Volkan Sezener,Aydin Unay
Journal of Agronomy , 2006,
Abstract: This study was conducted to determine the interaction of sowing date and plant density in Nazilli 84 cotton cultivar in Aegean Region. It was found that delaying sowing date significantly decreased seed cotton yield but the differences among plant densities were non-significant in both cultivars. The correlation coefficients and path analysis results among yield components, fiber technological characteristics and dry matter accumulation at first true leaf-boll retention showed that the ginning turnout had the highest positive direct effect on seed cotton yield. It was concluded that when the plant has less boll retention, dry matter accumulations between flowering-boll retention had adverse effect on seed cotton yield
Evaluation of Cotton Variety Yield Trials under Mediterranean Conditions in Turkey
Volkan Sezener,Taner Bozbek,Aydin Unay,Ilkay Yavas
Asian Journal of Plant Sciences , 2006,
Abstract: Distinction, Uniformity and Stability tests of the cotton advanced lines were performed by Nazilli Cotton Research Institute in Aegean Region of Turkey. Studies were conducted in three location of Aegean Region (Nazilli, Soke and Saraykoy), to evaluate the lint yield and fiber characteristics of 20 genotypes in 2005. The location x genotype interactions were significant for all characters except fiber length and fiber strength. Ozbek 142 S for lint percentage and Carmen for fiber strength were considerably the highest values for all locations. The most adaptable genotypes in yields were N/D-121 for Nazilli and Saraykoy, Ozbek 142 S for Soke.
Yavuz Yildiz,Taner Aydin,Ufuk Sekir,Bulent Hazneci
Journal of Sports Science and Medicine , 2003,
Abstract: The aim of this study was to evaluate the alterations in eccentric evertor/concentric invertor strength ratio and their importance in the chronically unstable ankle. Eight patients with chronic ankle instability (CAI) and nine healthy individuals participated in this study. Isokinetic concentric and eccentric invertor and evertor muscle strength measurement was carried out at an angular velocity of 120°·sec-1 by measuring maximal force moments (torque) during isokinetic ankle inversion and eversion movements. Functionally, evertor/invertor muscle strength ratios (E/I strength ratio) were calculated separately based on peak moment and angle-specific moments obtained at 0°, 5°, 10°, 15°, 20° ankle joint angles. Peak and angle-specific eccentric evertor strength values at 0°, 5°, 10°, 15°, 20° were significantly lower in the chronic ankle instability (CAI) group. In spite of this, no differences were obtained for peak and angle-specific concentric invertor torque values. Eccentric evertor/concentric invertor strength (Eecc/Icon) ratios were also significantly lower in the CAI group, but only at 15° and 20°. Eccentric evertor muscle torque and end range (15°-20°) Eecc/Icon strength ratio for the chronically unstable ankle were significantly different from those for the healthy ankle. For this reason, measurements of end range eccentric/concentric strength ratios are more valuable in monitoring chronic ankle injuries and rehabilitation should include not only concentric muscle strengthening but also eccentric muscle strengthening, particularly for the evertor muscles
Natural crossing and isolation distance between cotton genotypes in turkey
Bozbek, Taner;Ozbek, Nedim;Sezener, Volkan;Erdogan, Oktay;Yavas, Ilkay;Unay, Aydin;
Scientia Agricola , 2008, DOI: 10.1590/S0103-90162008000300012
Abstract: the purposes of this study were to determine the percentage of out-crossing, isolation distance and pollinator insect species for cotton (gossypium hirsutum l.) seed production in the aydin region in turkey. the glandless and red-leaf traits in g. hirsutum were used as genetic markers. two experiments were conducted over two years that monitored out-crossing in adjacent rows and adjacent plants and established that the percentage of out-crossing varied. the percentage of out-crossing varied between 0% and 13.3% depending on the genetic marker. in the experiment to determine isolation distance, natural crossing percentage was not observed in 2002, while this percentage was 0.8% in the first rows in 2003. in this study, cotton fields were also visited once a week during flowering periods for seven weeks in order to determine the numbers of pollinator insect species, where the only detected species was the honey bee. the numbers of pollinator insects were 2.14% (2002) and 1.30% (2003) for adjacent rows; 1.71% (2002) and 2.00% (2003) for adjacent plants in glandless parcels. it is recommended that the isolation distance between genotypes should be approximately 1 m.
An Integrated Air Data / GPS Navigation System for Helicopters  [PDF]
Taner Mutlu, Chingiz Hajiyev
Positioning (POS) , 2011, DOI: 10.4236/pos.2011.22010
Abstract: In this study, the integration of two navigation systems Air Data System (ADS) and Global Positioning System (GPS) was aimed. ADS is a widely used navigation system which measures static and total air pressure and the air temperature. ADS has high sampling frequency and poor accuracy, on the other hand, another navigation system GPS has high accuracy compared to ADS but lower sampling frequency.Kalman Filter is used to integrate and minimize the errors of the two navigation systems. By this integration a navigation system with high sampling frequency and high accuracy is aimed. Another object is to calculate the wind speed with high accuracy.
Some Criteria for the Asymptotic Behavior of a Certain Second Order Nonlinear Perturbed Differential Equation  [PDF]
Aydin Tiryaki
Advances in Pure Mathematics (APM) , 2012, DOI: 10.4236/apm.2012.25048
Abstract: In this paper we give sufficient conditions so that for every nonoscillatory u(t) solution of (r(t)ψ(u)u')'+Q(t,u,u'), we have lim inf|u(t)|=0. Our results contain the some known results in the literature as particular cases.
Software Competences of Geomatic Engineering  [PDF]
Serkan Aydin
International Journal of Geosciences (IJG) , 2015, DOI: 10.4236/ijg.2015.612102
Abstract: In this paper, it is both intended to effectively transfer and emphasize the relationship between geospatial data and software applications while presenting the learning activities which required software competences and presented some software techniques related with geomatic engineering. Effective software competence in geomatic is required for both the combination of information-communication technologies and interdisciplinary collaborative learning activities. The essential way to keep up with future competences is adaptation to different types of information technologies. Today, it is obviously seen that the using of interest-activated technology is a sine qua non condition of engineering education. The main focusing point of this paper is to present some learning suggestions while developing a software related course content in Geomatic to empower engineering education.
One Month Ongoing Intussusception: Case Report  [PDF]
Emrah Aydin
Open Journal of Pediatrics (OJPed) , 2016, DOI: 10.4236/ojped.2016.61003
Abstract: The aim is to present a case operated due to one-month ongoing intussusception and diagnosed as lymphoma. A six years old boy was admitted to our emergency department with complaint of colicky abdominal pain and bilious vomiting for the last month. He was operated due to 3 cm intussusception at ileocecal part. A mass which is about 6 cm in diameter, hard, partly mobile and invaginate the intestine at its posterior aspect was found. Pathology was reported as Burkitt lymphoma. He received two cycles of chemotherapy at post-operative period. He is still event free for the last two years. One must remember that lymphoma can be the lead point in intussusception especially in elderly children.
Promotion of Bone Morphogenetic Protein Signaling by Tetraspanins and Glycosphingolipids
Zhiyu Liu?,Herong Shi?,Lindsey C. Szymczak?,Taner Aydin,Sijung Yun?,Katharine Constas?,Arielle Schaeffer?,Sinthu Ranjan?,Saad Kubba?,Emad Alam
PLOS Genetics , 2015, DOI: 10.1371/journal.pgen.1005221
Abstract: Bone morphogenetic proteins (BMPs) belong to the transforming growth factor β (TGFβ) superfamily of secreted molecules. BMPs play essential roles in multiple developmental and homeostatic processes in metazoans. Malfunction of the BMP pathway can cause a variety of diseases in humans, including cancer, skeletal disorders and cardiovascular diseases. Identification of factors that ensure proper spatiotemporal control of BMP signaling is critical for understanding how this pathway is regulated. We have used a unique and sensitive genetic screen to identify the plasma membrane-localized tetraspanin TSP-21 as a key new factor in the C. elegans BMP-like “Sma/Mab” signaling pathway that controls body size and postembryonic M lineage development. We showed that TSP-21 acts in the signal-receiving cells and genetically functions at the ligand-receptor level. We further showed that TSP-21 can associate with itself and with two additional tetraspanins, TSP-12 and TSP-14, which also promote Sma/Mab signaling. TSP-12 and TSP-14 can also associate with SMA-6, the type I receptor of the Sma/Mab pathway. Finally, we found that glycosphingolipids, major components of the tetraspanin-enriched microdomains, are required for Sma/Mab signaling. Our findings suggest that the tetraspanin-enriched membrane microdomains are important for proper BMP signaling. As tetraspanins have emerged as diagnostic and prognostic markers for tumor progression, and TSP-21, TSP-12 and TSP-14 are all conserved in humans, we speculate that abnormal BMP signaling due to altered expression or function of certain tetraspanins may be a contributing factor to cancer development.
Turkish Studies , 2011,
Abstract: The Muahede, which was owned by Pertev Tevfik Bey and edited by ehabettin Süleyman Bey, began its publication life as newspaper in stanbul on October 18, 1910 with the tag line “Demokrasi Mesle inin Hadim ve Müdafii” (The Servant and Defender of Democracy). It was a daily newspaper with political, economic and literary content. Its publication life did not last long in the convulsive atmosphere of the Second Constitutional Era and only 24 issues were printed. The newspaper, which adopted the mission of promoting the ideas of democracy and liberties among the public, criticized the policies of ttihat ve Terakki (The Union and Progress Party) government especially with respect to these aspects. The publication did not hesitate to write about the political and administrative mistakes of the government even in a period when martial law was in effect and those newspapers writing against the government were closed down. It asked the government to adopt democratic means in accordance with the spirit of constitutionalism. The newspaper expressed the view that the regime of constitutionalism can be completely established in the country only with the implementation of a democratic government. While emphasizing the importance of the role the press must play in the development of democracy, the publication foregrounded the press as the essential element of a democracy. By criticizing the censorship practices, it asserted the idea that censorship was a barrier for the development of democracy. By frequently referring to the ideas of democracy, the articles in the publication often included terms like constitutionalism, justice, freedom, Kanun- Esasi (Main Constitution) and democracy, so that these terms could be better understood by the general public. The newspaper pursued a policy which aimed to promote the development of the state socially, economically, administratively and politically. The newspaper, which stated that the mission of the press was to place the problems of the society on the agenda, thereby directing the attention of the government to these problems, as well as informing the public about all kinds of developments, wrote about the problems and difficulties encountered by the people of Anatolia and tried to influence the government towards the solution of these problems. Despite the Press Law (Matbuat Kanunu), it bravely wrote about administrative weaknesses, corruption, abuse and mistakes. Moreover, as a supporter of the policy of Ottomanism, the paper also wrote about the social, cultural, administrative and educational problems of the Christi
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