Assessment of powdery mildew resistance in wild barley (Hordeum spontaneum L.) populations in the aegean region of Turkey

In a study of resistance to powdery mildew, we investigated three populations of Hordeum spontaneum using leaf segment test. For comparison of the reactions, we used 44 barley lines as differentials representing most of the resistance used in barley breeding. The H. spontaneum accessions were infected with 21 isolates selected for their reactions on the differential barleys. The results of H. spontaneum collections did not show any similarities with differential barleys used. Resistance reactions were very rare. There was no resistance to 13 out of the 21 isolates. Horizontal resistance was noticed in most of H. spontaneum lines

THE ALTERNATİVE HOSTS OF TRİSSOLCUS SPECİES, EGG PARASİTOİDS OF SUNN PEST AND HOST-PARAZİTOİD İNTERACTİONS İN SOUTH EASTERN ANATOLİA REGİON, TURKEY

Trissolcus species (Hymenoptera, Scelionidae) are important egg parasitoids of Sunn pest, Eurygaster integriceps Put. (Heteroptera, Scutelleridae). They need alternative host eggs to survive in the nature, at the end of the wheat growing season. This study was carried out to determine the alternative hosts of Trissolcus species and host-parasitoid interactions in laboratory and different ecosystems in Adıyaman, Diyarbakır and Şanlıurfa provinces during 2007-2009. The parasitoid adults were reared from Scutelleridae and Pentatomidae (Heteroptera) eggs, collected from wild plants and kept in tubes in the laboratory at 25±1ºC and 65±5% r.h. In this study, it was determined that 23 species belonging to Pentatomidae and Scutelleridae are alternative egg-hosts of Trissolcus spp. 13 species of which have been identified as the first time for alternative hosts of Trissolcus species

Re-enchanting Turkey Religious Stories on TV

Focusing on the increasing popularity of Turkish TV programmes in which miracles, morality, and virtue play prominent roles the author describes the re-enchantment of modern media in Turkey. Moreover, while in Turkey divides between the “religious” and the “secular” are assumed to be particularly stark, the TV programmes reveal a vibrant crossfertilization between Islamists and secularists

THE ORGANIZATIONAL ATTRACTIVENESS AND JOB SATISFACTION OF INSTRUCTORS OF PHYSICAL EDUCATION AND SPORTS WHO WORKS IN DIFFERENT REGIONS

In our research which is made in order to examine the organizational attractiveness and job satisfaction of instructors of physical education and sports who works in different regions in terms of different factors, there are 60 instructors who are 12 women and 48 men and have different academic title and work in 7 universities in different regions of Turkey. According to the variance of academic title of instructors, they ,distribute as 5 associate professor (% 8,5), 18 assistant professor (%30,0), 17 instructors (%28,3), 8 lecturers (% 13,3), 12 research assistant (% 20,0). While choosing of the universities, it is looked youngest universities and the number of instructors is least. “Minessota Job Satisfaction Scale”, “Organizational Attractiveness” and “Demographic Information Form” are used. The points which are located of scale dimensions are evaluated between 1 and 5. According to the test results which are done in order to find out if there is a meaningful difference in terms of the variances of academic title, age, years of service, duration of administration, administrative task, lesson hours, marital status of the averages points of the organizational attractiveness, internal satisfaction, external satisfaction, general satisfaction of the instructors who participate the research, a meaningful difference has not been found. There is a weak, positive directional relation among the internal, external satisfaction and organizational attractiveness. There is a weak, positive directional relation between general satisfaction and organizational attractiveness.  Article visualizations

Driven and Non-Driven Surface Chaos in Spin-Glass Sponges

A spin-glass system with a smooth or fractal outer surface is studied by renormalization-group theory, in bulk spatial dimension d=3. Independently varying the surface and bulk random-interaction strengths, phase diagrams are calculated. The smooth surface does not have spin-glass ordering in the absence of bulk spin-glass ordering and always has spin-glass ordering when the bulk is spin-glass ordered. With fractal (d>2) surfaces, a sponge is obtained and has surface spin-glass ordering also in the absence of bulk spin-glass ordering. The phase diagram has the only-surface-spin-glass ordered phase, the bulk and surface spin-glass ordered phase, and the disordered phase, and a special multicritical point where these three phases meet. All spin-glass phases have distinct chaotic renormalization-group trajectories, with distinct Lyapunov and runaway exponents which we have calculated.Comment: 4 pages, 3 figure

Influence of gravity waves on the climatology of high-altitude Martian carbon dioxide ice clouds

Carbon dioxide (CO2) ice clouds have been routinely observed in the middle atmosphere of Mars. However, there are still uncertainties concerning physical mechanisms that control their altitude, geographical, and seasonal distributions. Using the Max Planck Institute Martian General Circulation Model (MPI-MGCM), incorporating a state-of-the-art whole atmosphere subgrid-scale gravity wave parameterization (Yiğit et al., 2008), we demonstrate that internal gravity waves generated by lower atmospheric weather processes have a wide-reaching impact on the Martian climate. Globally, GWs cool the upper atmosphere of Mars by ∼10&thinsp;% and facilitate high-altitude CO2 ice cloud formation. CO2 ice cloud seasonal variations in the mesosphere and the mesopause region appreciably coincide with the spatio-temporal variations of GW effects, providing insight into the observed distribution of clouds. Our results suggest that GW propagation and dissipation constitute a necessary physical mechanism for CO2 ice cloud formation in the Martian upper atmosphere during all seasons.</p

Renormalization and topological susceptibility on the lattice: SU(2) Yang-Mills theory

The renormalization functions involved in the determination of the topological susceptibility in the SU(2) lattice gauge theory are extracted by direct measurements, without relying on perturbation theory. The determination exploits the phenomenon of critical slowing down to allow the separation of perturbative and non-perturbative effects. The results are in good agreement with perturbative computations.Comment: 12 pages + 4 figures (PostScript); report no. IFUP-TH 10/9