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Search Results: 1 - 10 of 163 matches for " Ikbal Agah Ince "
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Morphological, Anatomical and Palynological Properties of Some Turkish Veronica L. Species (Scrphulariaceae)
Ayse Kaplan,Asli Hasanoglu,Ikbal Agah Ince
International Journal of Botany , 2007,
Abstract: In this study, pollen and seed morphology, leaf and stem anatomy of four Veronica L. species (Scrophulariaceae) one of which is endemic (V. multifida) belonging to four Sections [V. persica (Sect. Pocilla), V. beccabunga (Sect. Beccabunga), V. officinalis and V. multifida (Sect. Veronica)] grown in Turkey have been studied on light and scanning electron microscopy. Different and similar features of these species were described.
Computational Multiaxial Fatigue Modelling for Notched Components*  [PDF]
Ayhan Ince
Modeling and Numerical Simulation of Material Science (MNSMS) , 2013, DOI: 10.4236/mnsms.2013.33A003
Abstract: Fatigue failures of driveline and suspension notched components for ground vehicles under multiaxial loading conditions are common, since most of those components are subjected to complex multiaxial loadings in service. A computational fatigue analysis methodology has been proposed here for performing multiaxial fatigue life prediction for notched components using analytical and numerical methods. The proposed multiaxial fatigue analysis methodology consists of an elastic-plastic stress/strain model and a multiaxial fatigue damage parameter. Results of the proposed multiaxial fatigue analysis methodology are compared to sets of experimental data published in the literature to verify the prediction capability of the elastic-plastic stress/strain model and the multiaxial fatigue damage parameter. Based on the comparison between calculated results and experimental data, it is found that the multiaxial elastic-plastic stress/strain model correlates well with experimental strain data for SAE 1070 steel notched shafts subjected to several non-proportional load paths. In addition, the proposed fatigue damage parameter is found to correlate reasonably well with experimental fatigue data of SAE 1045 steel notched shafts subjected to proportional and non-proportional loadings.
The Salivary Secretome of the Tsetse Fly Glossina pallidipes (Diptera: Glossinidae) Infected by Salivary Gland Hypertrophy Virus
Henry M. Kariithi,Ikbal A. Ince,Sjef Boeren,Adly M. M. Abd-Alla,Andrew G. Parker,Serap Aksoy,Just M. Vlak ,Monique M. van Oers
PLOS Neglected Tropical Diseases , 2011, DOI: 10.1371/journal.pntd.0001371
Abstract: Background The competence of the tsetse fly Glossina pallidipes (Diptera; Glossinidae) to acquire salivary gland hypertrophy virus (SGHV), to support virus replication and successfully transmit the virus depends on complex interactions between Glossina and SGHV macromolecules. Critical requisites to SGHV transmission are its replication and secretion of mature virions into the fly's salivary gland (SG) lumen. However, secretion of host proteins is of equal importance for successful transmission and requires cataloging of G. pallidipes secretome proteins from hypertrophied and non-hypertrophied SGs. Methodology/Principal Findings After electrophoretic profiling and in-gel trypsin digestion, saliva proteins were analyzed by nano-LC-MS/MS. MaxQuant/Andromeda search of the MS data against the non-redundant (nr) GenBank database and a G. morsitans morsitans SG EST database, yielded a total of 521 hits, 31 of which were SGHV-encoded. On a false discovery rate limit of 1% and detection threshold of least 2 unique peptides per protein, the analysis resulted in 292 Glossina and 25 SGHV MS-supported proteins. When annotated by the Blast2GO suite, at least one gene ontology (GO) term could be assigned to 89.9% (285/317) of the detected proteins. Five (~1.8%) Glossina and three (~12%) SGHV proteins remained without a predicted function after blast searches against the nr database. Sixty-five of the 292 detected Glossina proteins contained an N-terminal signal/secretion peptide sequence. Eight of the SGHV proteins were predicted to be non-structural (NS), and fourteen are known structural (VP) proteins. Conclusions/Significance SGHV alters the protein expression pattern in Glossina. The G. pallidipes SG secretome encompasses a spectrum of proteins that may be required during the SGHV infection cycle. These detected proteins have putative interactions with at least 21 of the 25 SGHV-encoded proteins. Our findings opens venues for developing novel SGHV mitigation strategies to block SGHV infections in tsetse production facilities such as using SGHV-specific antibodies and phage display-selected gut epithelia-binding peptides.
The microcirculation is the motor of sepsis
Can Ince
Critical Care , 2005, DOI: 10.1186/cc3753
Abstract: The recent development of new medical imaging techniques, together with data from clinical investigations, has helped to identify the microcirculation as playing a key role in sepsis [1]. The array of pathogenic factors that occur in sepsis affects almost every cellular component of the microcirculation, including endothelial cells, smooth muscle cells, leukocytes, erythrocytes, and tissue cells. If not corrected directly, a poorly functioning microvasculature can lead to respiratory distress in tissue cells further fuelling microcirculatory dysfunction in a cascade of pathogenic mechanisms leading to organ failure (Fig. 1). Sakr and colleagues [2] showed that microcirculatory distress not corrected for 24 hours was the single independent factor predicting patient outcome. The central role of the microcirculation in providing oxygen to the tissue cells makes it of prime importance in determining organ function. Microcirculatory dysfunction persisting for extended periods of time can act as a motor driving the pathogenic effects of sepsis leading to organ failure in much the same way as the gut was considered to be the motor of multiorgan failure [3].Microcirculatory function is the main prerequisite for adequate tissue oxygenation and thus organ function. Its purpose is to transport oxygen and nutrients to tissue cells, ensure adequate immunological function and, in disease, to deliver therapeutic drugs to target cells. The microcirculation consists of the smallest blood vessels (<100 μm diameter) where oxygen release to the tissues takes place, and consists of arterioles, capillaries, and venules. The main cell types comprising the microcirculation are the endothelial cells lining the inside of the microvessels, smooth muscle cells (mostly in arterioles), red blood cells, leukocytes, and plasma components in blood. The structure and function of the microcirculation is highly heterogeneous in different organ systems. In general, driving pressure, arteriolar tone, he
FMCW Radar Performance for Atmospheric Measurements
T. Ince
Radioengineering , 2010,
Abstract: Frequency-modulated continuous-wave radars (FMCW) have been used in the investigation of the atmosphere since the late 1960’s. FMCW radars provide tremendous sensitivity and spatial resolution compared to their pulsed counterparts and are therefore attractive for clear-air remote-sensing applications. However, these systems have some disadvantages and performance limitations that have prevented their widespread use by the atmospheric science community. In this study, system performance of atmospheric FMCW radar is analyzed and some measurement limitations for atmospheric targets are discussed. The effects of Doppler velocities and spectral widths on radar performance, radar’s near-field operation, and parallax errors for two-antenna radar systems are considered. Experimental data collected by the highresolution atmospheric FMCW radar is used to illustrate typical performance qualitatively based on morphological backscattered power information. A post-processing based on single-lag covariance differences between the Bragg and Rayleigh echo is applied to estimate clear-air component from refractive index turbulence and perform quantitative analysis of FMCW radar reflectivity from atmospheric targets.
Probabilistic seismic hazard assessment of the historical peninsula of Istanbul
G. ?. Ince
Natural Hazards and Earth System Sciences (NHESS) & Discussions (NHESSD) , 2012, DOI: 10.5194/nhess-12-3483-2012
Abstract: In order to design buildings that are resistant to earthquakes, first it is necessary to determine the parameters of ground motion. In this study, the earthquake seismic hazard analysis of the Old City Districts of Istanbul (Fatih and Eminonu) was probabilistically defined. For the analysis, the study zone was divided into 307 cells of 250 × 250 m using geographical information systems, and these cells were used in the mapping of all the data obtained. Then, for a building lifetime of 50 yr, the acceleration parameters of earthquake ground motions, peak ground acceleration, peak ground velocity, and spectral acceleration values of 0.2 s and 1 s were obtained at the bedrock level according to 10% and 40% exceedances. Additionally, in order to produce the artificial acceleration-time records of the ground movement in accordance with the NEHRP acceleration spectrum, the TARSCHTS computer simulation program was utilized. The results of the analysis showed that for the 10% probability of exceedance, the peak bedrock acceleration values ranged from 0.30 g to 0.40 g, and for the 40% exceedance probability the acceleration values ranged from 0.22 g to 0.17 g. The Ss 10% exceedance probability, calculated according to the spectral acceleration parameter, ranged from 0.67 g to 0.85 g and the spectral acceleration parameter S1 varied between 0.22 g–0.28 g. The Ss 40% exceedance probability, calculated according to the spectral acceleration parameter, ranged from 0.46 g to 0.38 g and the spectral acceleration parameter S1 varied from 0.12 g to 0.14 g.
Vorteile und St rken der Online-Beratung im Bereich der Straff lligen- und Opferhilfe
Renate Ince
E-Beratungsjournal , 2006,
Abstract: Der Erfahrungsbericht beschreibt die Entwicklungen der eMail-Beratung im Arbeitsfeld der Straff lligen- und Opferhilfe. Die Autorin legt dabei den Schwerpunkt auf die besonderen Vorteile der niedrigschwelligen Form der Online-Beratung und verbindet Beispiele aus der Berufspraxis mit aktueller Literatur und der Forderung nach Qualit tsstandards und Ausbildung für den Bereich Online-Beratung.
Women in the Turkish Firms in the Globalization Process
Meltem Ince
Business and Economics Research Journal , 2010,
Abstract: There has been a great acceleration in globalization; therefore it includes widening the social, cultural and political rules, norms and moderations. Different parts of the world gain these reforms for their economic well-beings, social and political structures, to solve their socio-economic problems and to promote economic activities in countries all around the world. In this respect, globalization is captured by capital flows, foreign investment, transnational enterprises, migration, and increasing mobility of labor including women. Because women are the largest growing part and they are getting a very high share from the economic globalization that necessitate skilled and educated labor. So women increase either their space in organizations or open enterprises for themselves. In this paper, it is showed clearly that globalization has both negative and positive impacts on women in Turkey, but it has more affirmative effect to find jobs they deserve in global market. Women in management at global level in Turkey proceed more compared to past years.
The untwisting number of a knot
Kenan Ince
Mathematics , 2015,
Abstract: The unknotting number of a knot is the minimum number of crossings one must change to turn that knot into the unknot. The algebraic unknotting number is the minimum number of crossing changes needed to transform a knot into an Alexander polynomial-one knot. We work with a generalization of unknotting number due to Mathieu-Domergue, which we call the untwisting number. The untwisting number is the minimum number (over all diagrams of a knot) of right- or left-handed twists on even numbers of strands of a knot, with half of the strands oriented in each direction, necessary to transform that knot into the unknot. We show that the algebraic untwisting number is equal to the algebraic unknotting number. However, we also exhibit several families of knots for which the difference between the unknotting and untwisting numbers is arbitrarily large, even when we only allow twists on a fixed number of strands or fewer.
Milli Kültür Hazinelerimiz
Agah S?rr? Levend
Türk Kütüphanecili?i , 1955,
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