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Search For Supersymmetry At \Gammap - Colliders, A. U. Yilmazer
Search For Supersymmetry At \Gammap - Colliders, A. U. Yilmazer
Turkish Journal of Physics
We discuss the possibility of searching supersymmetry at TeV scale $\gamma p$ colliders proposed recently. Theoretical predictions are derived within the framework of minimal supersymmetric standard model (MSSM) with R-parity conservation. Productions of squarks, gluinos, charginos and neutralinos through the processes $\gamma p\rightarrow\tilde{q}\tilde{w}X$, $\gamma p\rightarrow\tilde{q}\tilde{g}X$, $\gamma p\rightarrow\tilde{q}\tilde{\gamma}X$ (or $\tilde{q}\tilde{z}$) and $\gamma p\rightarrow\tilde{q}\tilde{q}^*X$ are considered. Cross sections for different initial beam polarizations are calculated and it is shown that polarization asymmetries are sensitive to the particle masses. Discovery mass limits of the superpartners are tabulated for various $\gamma p$ colliders at different center of mass energies. The results are compared with …
Tune Shift Limitations For Linac-Ring Type Colliders, Ö. Yavaş
Tune Shift Limitations For Linac-Ring Type Colliders, Ö. Yavaş
Turkish Journal of Physics
Limitations on incoherent and beam-beam tune shift values are calculated by using gaussian beam distribution for linac-ring type $ep$ colliders. The advantage of this machine is achievement of multi TeV center of mass energies in lepton-hadron interactions at sufficiently high luminosities. Tune shift puts a limit on the number of electrons per effective area for the stability of proton beam and, therefore, gives an upper bound for the luminosity.
Response Of Apis Mellifera Syriacaand A. M. Armeniacatonectar Variations: Implications For Agriculture, İbrahim Çakmak, Harrington Wells, Çetin Firatli
Response Of Apis Mellifera Syriacaand A. M. Armeniacatonectar Variations: Implications For Agriculture, İbrahim Çakmak, Harrington Wells, Çetin Firatli
Turkish Journal of Agriculture and Forestry
The foraging ecology of Apis mellifera syriaca and A. m. armeniaca was studied using artificial flower patches consisting of blue, white, and yellow flowers. Two experiments were performed with each race. Experiment I examined forager response to differences in sucrose reward molarity (quality of reward) associated with flower colors. Experiment II varied the quantity of sucrose reward associated with flower colors. A. m. syriacaand A. m. armeniacaeach responded to quality and quantity differences between blue and white flowers. Prior studies show that A. m. caucasica and A. m. ligustica respond to reward quality difference, but they do not respond to …
The Effect Of Prescribed Fire On The Natural Regeneration Success Oflebanon Cedar ( Cedrus Libani A. Rich.) At Antalya-Kaş Locality, Melih Boydak, Fikret Işik, Bayram Doğan
The Effect Of Prescribed Fire On The Natural Regeneration Success Oflebanon Cedar ( Cedrus Libani A. Rich.) At Antalya-Kaş Locality, Melih Boydak, Fikret Işik, Bayram Doğan
Turkish Journal of Agriculture and Forestry
With this study the effect of prescribed fire on the natural regeneration success of Lebanon Cedar ( Cedrus libani A. Rich.) by shelterwood method was investigated at Antalya-Kaş localitiy. Split plot design with three replications was applied as experimental design. Prescribed fire was applied to slash pile at one of each main plot while the other was left as control. Main plots were divided into two subplots and equal number of seeds were used at each subplot for additional seeding by applying broadcast seeding (full seeding) or drill sowing methods. Seedling survival was recorded each year and the height growth …
Agricultural Structure And Mechanisation Characteristics Of Theşanlıurfa-Harran Plain, Alim Işik, İbrahim Atun
Agricultural Structure And Mechanisation Characteristics Of Theşanlıurfa-Harran Plain, Alim Işik, İbrahim Atun
Turkish Journal of Agriculture and Forestry
The Şanlıurfa-Harran plain was firstly opened to irrigation in the South-eastern Anatolian Project, called GAP. Available mechanisation investment and agricultural structure should be known to estimate new requierements for the future in this plain. In this research, agricultural structure and mechanisation characteristics by a questeonnaire conducted before irrigation. Each farm has at least one tractor. In conclusion, it was found that average farm size was 35.5 hectars, plot size was 11.7 hectars, number of tractors per farm was 1.7, tractor engine power was 46.8 kW, number of machines per tractor was 3.8, fuel consumption of the tractor was 2 244 …
Functional Radionuclide Imaging Algorithm Based On The Appended Curve Deconvolution Technique And Its Use In The Diagnosis Of Renovascular Hypertension, İrfan Karagöz, Hi̇kmet Bayhan
Functional Radionuclide Imaging Algorithm Based On The Appended Curve Deconvolution Technique And Its Use In The Diagnosis Of Renovascular Hypertension, İrfan Karagöz, Hi̇kmet Bayhan
Turkish Journal of Electrical Engineering and Computer Sciences
In this study, a new method called the pixel basis functional radionuclide imaging (PBFRI) algorithm based on the appended curve deconvolution technique, in order to be able to increase the medical diagnostic capability of a conventional gamma camera, is presented together with the clinical results. In the PBFRI method, retention function of each pixel is obtained from the renograms and cardiac curves generated by processing the filtered segments of the kidney and heart, using a special deconvolution method. The deconvolution operation is done by using the Fourier transform technique. High frequency artifacts presented by the Fourier transform are removed by …
Providencia Ssp In Nosocomial Urinary Infections, Efsun Akbaş, Orhan Cem Aktepe, Belkıs Levent, İbrahim Dalkilinç, Engin Güvener
Providencia Ssp In Nosocomial Urinary Infections, Efsun Akbaş, Orhan Cem Aktepe, Belkıs Levent, İbrahim Dalkilinç, Engin Güvener
Turkish Journal of Medical Sciences
This study was carried out in the Ankara Rehabilitation Centre over an eight month period. A total of 428 urine samples was collected from inpatients with long-term catheterization for diagnosis of bacteriuria. Urinary tract infection was detected in three hundreds and thirty-one samples. Escherichia coli was found to be the highest causative agent. Moreover in forty of these samples Providencia spp were determined as the fifth highest causative agent. This Providencia spp finding is important as it is the highest recorded in Turkey. Although six out of 40 isolates were during preservation, the remaining thirty-four isolates were further investigated to …
Development Of The Downy Mildew Pathogen Bremia Lactucae Ontransgenic Lettuce Expressing A Bacterial \Beta-1,3-Glucanase, Yeter Dede
Turkish Journal of Agriculture and Forestry
A \beta-1,3-glucanase gene from Arthrobacter sp. driven by the 35S promoter was singly transformed into two lettuce cultivars, Cobham Gree and Diana, using the binary vector system of Agrobacterium tumefaciens. Tansformation was confirmed by using Southern and Northern analysis, Npt II enzyme assays and segregation of resistance to kanamycin. Transgenic plants were infected with the letuce downy mildew fungus, Bremia lactucae which contains \beta-1,3-gluncan in its cell wall and alternations in the development the fungus could easily be monitored. Transgenic plants inoculated with B. lactucae showed different levels of resistant responses compared to the control and they were examined microscopically.
Genetic Approach For The Determination Of Object Parameters From X Ray Projections, Tayfun Günel, Sedef Kent
Genetic Approach For The Determination Of Object Parameters From X Ray Projections, Tayfun Günel, Sedef Kent
Turkish Journal of Electrical Engineering and Computer Sciences
In this study, a new method is presented, based on genetic algorithms for determining object parameters such as radii and/or attenuation coefficients with some assumptions and estimating a cross-sectional image of an object from its projections obtained by X ray illumination. After it was tested for projections degraded by different random noise levels, it was observed that the genetic and fuzzy genetic algorithms improved the signal to noise ratio of the projections. The fuzzy genetic algorithm gave better results than the genetic algorithm.
An Autecological Study On Iris Pseudacorus L. (Iridaceae), Ali Engi̇n, Nezahat Kandemi̇r, Gülcan Şenel, Mustafa Özkan
An Autecological Study On Iris Pseudacorus L. (Iridaceae), Ali Engi̇n, Nezahat Kandemi̇r, Gülcan Şenel, Mustafa Özkan
Turkish Journal of Botany
The ecological properties of Iris pseudacorus L., a marsh plant species, were investigated. The analysis of N%, P% and K% in the below-ground and above-ground parts of the plant was carried out. In addition, soil samples were collected and their physical and chemical aspects were analyzed.
The Influence Of Solvents On Formation Of The Molecular Geometry Of [{Fe(Salphen)}_2o], Mehmet Kabak, Ayhan Elmali
The Influence Of Solvents On Formation Of The Molecular Geometry Of [{Fe(Salphen)}_2o], Mehmet Kabak, Ayhan Elmali
Turkish Journal of Physics
The crystal structure and magnetic properties of the complex (I)=[$\{$Fe(salphen)$\}_2$\-O]$\cdot$(C$_4$\-H$_8$SO) and (II)=[$\{$Fe(salphen)$\}_2$O]$\cdot$(C$_4$H$_8$O$_2$)\- (salphen H$_2$=N,N'-o-phenylenebis\-(salicylidene-imine)) were recently reported [1, 2]. This complex crystallized with the solvents of dimethyl sulfoxide and dioxane. In this paper, we investigate the influence of the solvents on the formation of the molecular geometry and study the orbital mechanism of the magnetic super-exchange interactions of this complex.
Anisotropic Motion Of Lipids In Hydrophobic Core Of Dppc Bilayers. Simulation Of Esr Spectra, Canan Teti̇k, Mustafa Korkmaz
Anisotropic Motion Of Lipids In Hydrophobic Core Of Dppc Bilayers. Simulation Of Esr Spectra, Canan Teti̇k, Mustafa Korkmaz
Turkish Journal of Physics
Planar samples prepared by drying phospholipid dispersions on glass slides provide a convenient model to examine motion and orientation in lipid bilayer structures. In the present work, hydrophobic cores of DPPC multibilayers were studied using a 16-DSA spin label consisting of a nitroxide free radical bonded to the 16 position of stearic acid. This spin label is in great demand for investigation of phase transitions occurring in the hydrophobic cores of lipid multibilayers. Thus, its room temperature motional and orientational features in phospholipid bilayers must be known accurately to avoid any misinterpretation in using it in these types of studies. …
Myasthenia Gravis In A Dog, Hasan Batmaz, Fikriye Süzer, Engin Kennerman, Zeki Yilmaz
Myasthenia Gravis In A Dog, Hasan Batmaz, Fikriye Süzer, Engin Kennerman, Zeki Yilmaz
Turkish Journal of Veterinary & Animal Sciences
A seven-month-old male collie was brought to our clinic with complaints of exhaustaion and fatigue for the past month, inability to stand on its hind legs, loss of voice and anorexia for the past week. In clinical examination, increase in heart frequency, difficulty in lifting the head, tetraparesis, regurgitation and urinary incontinence were observed. MG was suspected and 0.05 mg/kg i.m. neostigmine methylsulfate was given for clinical diagnosis. A positive response was seen within 30 minutes of drug application. The same drug was administered 3 hours later and the same positive clinical findings were observed. The disease was diagnosed as …
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
An Interoperability Infrastructure For Developing Multidatabase Systems, Asuman Doğac, Gökhan Özhan, Ebru Kılıç, Fatma Özcan, Sena Nural, Sema Mancuhan, Cevdet Dengi, Pınar Köksal, Uğur Halıcı, Budak Arpınar, Cem Evrendilek, Vahid Sadjadi
An Interoperability Infrastructure For Developing Multidatabase Systems, Asuman Doğac, Gökhan Özhan, Ebru Kılıç, Fatma Özcan, Sena Nural, Sema Mancuhan, Cevdet Dengi, Pınar Köksal, Uğur Halıcı, Budak Arpınar, Cem Evrendilek, Vahid Sadjadi
Turkish Journal of Electrical Engineering and Computer Sciences
A multidatabase system (MDBS) allows the users to simultaneously access autonomous, heterogeneous databases using a single data model and a query language. This provides for achieving interoperability among heterogeneous, federated DBMSs. In this paper, we describe the interoperability infrastructure of a multidatabase system, namely METU Interoperable DBMS (MIND). The architecture of MIND is based on OMG distributed object management model. It is implemented on top of a CORBA compliant ORB, namely, ObjectBroker. The interface of the generic database object is defined in CORBA IDL and multiple implementations of this interface, one for each component DBMSs, namely, Oracle 7, Sybase, Adabas …
Performance Of Prefiltered Model-Based Frequency Estimators, Mustafa A. Altınkaya, Bülent Sankur, Emin Anarım
Performance Of Prefiltered Model-Based Frequency Estimators, Mustafa A. Altınkaya, Bülent Sankur, Emin Anarım
Turkish Journal of Electrical Engineering and Computer Sciences
In this work, the performance improvement due to prefiltering of inputs in model-based frequency estimators is investigated based on simulation experiments. Initial estimates on the tone frequency locations, which are obtained via DFT peak picking type preanalysis, are used to design a prefilter to remove noise and interference. The simulations indicate that prefiltering can improve the accuracy of Pisarenko and AR frequency estimators and MUSIC and KT frequency estimators with low subspace order significantly. The SNR thresholds of model-based frequency estimators are lowered by prefiltering. Additionally, interesting trade-offs between prefiltering gain and the gain due to subspace noise filtering have …