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Increased Cell Fusion in Cerebral Cortex May Contribute to Poststroke Regeneration
Alexander Paltsyn,Svetlana Komissarova,Ivan Dubrovin,Aslan Kubatiev
Stroke Research and Treatment , 2013, DOI: 10.1155/2013/869327
Increased Cell Fusion in Cerebral Cortex May Contribute to Poststroke Regeneration
Alexander Paltsyn,Svetlana Komissarova,Ivan Dubrovin,Aslan Kubatiev
Stroke Research and Treatment , 2013, DOI: 10.1155/2013/869327
Abstract: In this study, we used a model of a hemorrhagic stroke in a motor zone of the cortex in rats at the age of 3 months The report shows that cortical neurons can fuse with oligodendrocytes. In formed binuclear cells, the nucleus of an oligodendrocyte undergoes neuron specific reprogramming. It can be confirmed by changes in chromatin structure and in size of the second nucleus, by expression of specific neuronal markers and increasing total transcription rate. The nucleus of an oligodendrocyte likely transforms into a second neuronal nucleus. The number of binuclear neurons was validated with quantitative analysis. Fusion of neurons with oligodendrocytes might be a regenerative process in general and specifically following a stroke. The appearance of additional neuronal nuclei increases the functional outcome of the population of neurons. Participation of a certain number of binuclear cells in neuronal function might compensate for a functional deficit that arises from the death of a subset of neurons. After a stroke, the number of binuclear neurons increased in cortex around the lesion zone. In this case, the rate of recovery of stroke-damaged locomotor behavior also increased, which indicates the regenerative role of fusion. 1. Introduction Protection, rehabilitation, and stroke outcome are determined by the extent of the preserved neuronal tissue. Thus, the maintenance and regeneration of stroke-injured neurons is a prominent topic on which there are many publications, all of which represent neuronal regeneration exclusively as a result of neurogenesis. This tendency can be justified only in one case, when a stroke occurs in the dentate gyrus (fascia dentata hippocampus) or in the olfactory bulb. These two zones are reasonably considered neurogenic because they are sites of the replacement of granular neurons. Granular neurons are formed in two other neurogenic zones: the subgranular layer of the dentate gyrus [1–5] and the subventricular layer of the cerebral ventricles [6–8]. Neuroblasts migrate from these zones to the granular layer of the dentate gyrus [9–11] and to the olfactory bulbs [8, 12], where they differentiate into granular neurons. Reports of neurogenesis in other brain regions, as in the review of Gould [13], contradict other experiments [14–17]. Therefore, scientific consensus purports that, in other brain regions, neurogenesis does not occur. According to one hypothesis, neurogenesis does not normally occur in the cortex but appears after stroke [18, 19]. However, some publications do not confirm this point of view [20]. These issues
Modified Technique for Internal Ureteroileal Stenting in Orthotopic Neobladders  [PDF]
Guven Aslan
Open Journal of Urology (OJU) , 2011, DOI: 10.4236/oju.2011.12005
Abstract: We introduce a modified surgical technique for internal ureteroileal stenting to improve cosmesis in patients undergoing ileal neobladder. Internal ureteric stents are secured to the tip of the urethral catheter with nonabsorbable suture facilitating removal of the stents postoperatively 2-3 weeks along with the urethral catheter. This surgical modification was applied to 21 patients of whom no significant surgical or infectious complication due to single urethral catheter was observed. Internal ureteral stenting is simple, safe and inexpensive alternative to conventional methods to support ureteroileal anastomosis in patients undergoing orthotopic bladder substitution.
Comment on the Paper “Condom-Assisted Transurethral Resection: A New Surgical Technique for Urethral Tumor”, Surgical Science, Vol. 1, 2010, pp. 46-48  [PDF]
Guven Aslan
Surgical Science (SS) , 2011, DOI: 10.4236/ss.2011.24042
Abstract: The authors introduce a new technical modification which facilitates endoscopic resection of urethra tumors located at navicular fossa by using a tipcut condom that covers the resectoscope and the penis. This tech-nique can be used in the diagnosis and management of all kind male anterior urethral lesions at this location.
The Analysis of the Van-Ercis Earthquake, October 23, 2011 Turkey, for the Transportation Systems in the Region  [PDF]
Hakan Aslan
Open Journal of Earthquake Research (OJER) , 2013, DOI: 10.4236/ojer.2013.24009

This paper investigates the effect of the Van-Ercis, Turkey, (Mw: 7.2)earthquake occurring on 23rd of October, 2011 on the transportation networks in the region. The basic incentivefor this research is to conceptualise the reliability and performance of the networks after the earthquake through the operational and topological analysis of the system. The demand and composition of the traffic along with the behaviour of the pedestrians were taken into account to evaluate the performance of the networks. In addition, the general structure of the cities and towns, as far as planning is concerned, is also paid attention and regarded as one of the main elements for the appraisal. The outcomes obtained are thought very important to be guidance for the expected Istanbul earthquake in the near future.

Temperature Dependence of the Raman Intensity and the Bandwidth Close to the Order-Disorder Phase Transition in NaNO3  [PDF]
Hamit Yurtseven, Sukran Aslan
Optics and Photonics Journal (OPJ) , 2012, DOI: 10.4236/opj.2012.223038
Abstract: We analyze the temperature dependence of the Raman intensity using the experimental data according to a power-law formula close to the order-disorder transition (Tc = 549 K) in NaNO 3. From this analysis, we extract the value of β = 0.26 as the critical exponent for the order parameter, which indicates a tricritical phase transition in this crystalline system. Using the temperature dependence of the order parameter, the Raman bandwidth is calculated at various temperatures in NaNO3. Our calculated bandwidths describe adequately the observed behaviour of the order-disorder transition in this crystal.
Matrix Operations Design Tool for FPGA and VLSI Systems  [PDF]
Semih Aslan, Jafar Saniie
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.72005
Abstract: Embedded systems used in real-time applications require low power, less area and high computation speed. For digital signal processing, image processing and communication applications, data are often received at a continuously high rate. The type of necessary arithmetic functions and matrix operations may vary greatly among different applications. The RTL-based design and verification of one or more of these functions could be time-consuming. Some High Level Synthesis tools reduce this design and verification time but may not be optimal or suitable for low power applications. The design tool proposed in this paper can improve the design time and reduce the verification process. The design tool offers a fast design and verification platform for important matrix operations. These operations range from simple addition to more complex matrix operations such as LU and QR factorizations. The proposed platform can improve design time by reducing verification cycle. This tool generates Verilog code and its testbench that can be realized in FPGA and VLSI systems. The designed system uses MATLAB-based verification and reporting.
Mathematical Instruments Commonly Used among the Ottomans  [PDF]
Irem Aslan Seyhan
Advances in Historical Studies (AHS) , 2019, DOI: 10.4236/ahs.2019.81003

At the end of 17th century and during 18th century, after devastating Russian wars the Ottomans realized that they fell behind of the war technology of the Western militaries. In order to catch up with their Western rivals, they decided that they had to reform their education systems. For that they sent several students to abroad for education and started to translate Western books.? They established Western style military academies of engineering. They also invited foreign teachers in order to give education in these institutes and they consulted them while there were preparing the curriculum. For all these, during the modernization period, the reform (nizama-1 cedid) planers modelled mainly France, especially for teaching the applied disciplines. Since their main aim was to grasp the technology of the West, their interest focused on the applied part of sciences and mathematics. For that reason, they had a very keen interest on mathematical instruments. The main objective in this article is to examine mathematical instruments commonly used in the Ottoman empire. We examined that by dividing the subject in two periods: The Classical period (Medieval Islamic Echole) and the Modernization period (Western Echole). Our main focus in this article will be the Modernization period and the instruments used in the Ottoman military academies.

Secondary school teacher candidates’ attitudes toward science
Cengiz Aslan,Berna Aslan
Cypriot Journal of Educational Sciences , 2009,
Abstract: Teachers are one of the most important components of students’ development and it is accepted that teachers’professional and pedagogical knowledge needs to be good enough to respond to students’ needs. Teachers should developpositive attitudes toward science in order to equip their students with the necessary scientific thinking abilities such asdefining the problem, collecting the data, analyzing, and explaining any patterns and solving the problem. Scientific thinkingabilities are important both for daily life and for the educational process. Educating students who value science could bepossible as a result of educating teachers who themselves value science. In this descriptive study, the attitudes of teachercandidates with regard to science are evaluated using the Attitudes toward Science Scale, developed by Patrick A. Vitale andBrenda K. Johnson in 1988. The sample used in the study is 85 students in the field of (a) Mathematic teaching in theDepartment of Secondary Level Science & Mathematic Education, and (b) Turkish Language and Literature teaching atDepartment of Secondary Level Social Science Education. The differences in attitudes were evaluated according to somepsycho-social variables gathered through a personal information form. t-test and ANOVA were used to evaluate thefindings. The results indicate that students perceived the instrumental value of science and the difficulty and complexities ofscience differently, depending on their field of interest. Another important finding is that students who want to apply for adoctoral programme perceive the instrumental value of science differently from that of students who do not intend to applyfor doctoral study. Also, the perception of the participants with regard to the difficulties and complexities of science differaccording to the place they lived most of their lives in terms of rural areas, towns, cities or metropolitan.
The Study of Teachers’ General Cynicism Inclinations in Terms of Life Satisfaction and Other Variables  [PDF]
Hüseyin Aslan, Ercan Yilmaz
Creative Education (CE) , 2013, DOI: 10.4236/ce.2013.49084

This research aims to examine teachers’ general cynicism inclinations in respect to some variables and life satisfaction level and the relevance of these inclinations with gender, relationship status and membership of a union. Research is carried out using relational inquiry module and the study group of it constituted of 395 primary school teachers who are working in Ankara during academic year of 2012-2013 and selected with the help of modeling of inordinate set. The data are collected with “The Scale of Life Satisfaction” and tested by making use of multiple regression technique. Whether the differentiation levels of teachers’ general cynicism inclinations are related with their genders, relationship status and their membership of a union are analyzed using T test. As a result, male teachers have higher degree of cynicism in cognitive dimension than female teachers. Moreover, these general cynicism inclinations in cognitive, affective and behavioral dimensions do not differ greatly according to teachers’ membership of a union and relationship status. It is observed that the cognitive and affective dimensions of general cynicism inclinations have negative-sided relation with teachers’ life satisfaction rates.

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