A Search for the Fourth SM Family Fermions and E_6 Quarks at μ+μ−\mu ^{+}\mu ^{-} Colliders

The potential of $\mu ^{+}\mu ^{-}$ colliders to investigate the fourth SM family fermions predicted by flavour democracy has been analyzed. It is shown that muon colliders are advantageous for both pair production of fourth family fermions and resonance production of fourth family quarkonia. Also isosinglet quarks production at $\mu ^{+}\mu ^{-}$ colliders has been investigated.Comment: 9 pages, 5 table

Solution of the Bosonic and Algebraic Hamiltonians by using AIM

We apply the notion of asymptotic iteration method (AIM) to determine eigenvalues of the bosonic Hamiltonians that include a wide class of quantum optical models. We consider solutions of the Hamiltonians, which are even polynomials of the fourth order with the respect to Boson operators. We also demonstrate applicability of the method for obtaining eigenvalues of the simple Lie algebraic structures. Eigenvalues of the multi-boson Hamiltonians have been obtained by transforming in the form of the single boson Hamiltonian in the framework of AIM

Any ll-state solutions of the Hulth\'en potential by the asymptotic iteration method

In this article, we present the analytical solution of the radial Schr\"{o}dinger equation for the Hulth\'{e}n potential within the framework of the asymptotic iteration method by using an approximation to the centrifugal potential for any $l$ states. We obtain the energy eigenvalues and the corresponding eigenfunctions for different screening parameters. The wave functions are physical and energy eigenvalues are in good agreement with the results obtained by other methods for different $\delta$ values. In order to demonstrate this, the results of the asymptotic iteration method are compared with the results of the supersymmetry, the numerical integration, the variational and the shifted 1/N expansion methods.Comment: 14 pages and 1 figur

Öğretmenlerin İdeal Okula İlişkin Bilişsel Yapıları

There are various factors influencing teachers' perceptions of the ideal school concept, but the school they work has a foremost impact shaping cognitive structures of the ideal school quality. However, the research on school and qualities of schools are limited with metaphor analysis. This research addresses this gap by elucidating the similarities and differences between the cognitive structures of teachers working at primary schools regarding the qualities of the ideal school, using the repertory grid technique. The participants of this research are twenty teachers who are working for three years in the same school. The study employs a mixed research design. Decision making grid technique was used as a data collection tool and content analysis and exploratory factor analysis were used in data analysis. Findings show that the structures formed by teachers are composed of two dimensions: individual and institution. The factor that comes to the fore in the individual dimension is the ideal school, and the factor that stands out in the institution dimension is the non-ideal school. The structures that represent the ideal school factor are the managers, teachers, students, parents, satisfaction, trust and hierarchal relations in the individual dimension. Teachers' cognitive fictions are more prominent in the institution dimension of non-ideal schools. In non-ideal schools, teachers' cognitive fictions showed that factors such as socio-economic environment, physical condition of the school, equipment and in-service training opportunities are influential.Bu çalışmada ilk ve ortaokul öğretmenlerinin ‘ideal okul’ kavramına yönelik bilişsel yapılarını dağarcık ağı tekniğiyle ortaya koymak amaçlanmıştır. Karma yöntemlerden keşfedici desenle tasarlanan çalışmada katılımcılar ölçüt örnekleme tekniğiyle belirlenen 20 öğretmenden oluşmuştur. Çalışma verileri karar verme ağ tekniği kullanılarak elde edilmiş olup element-yapı benzerlik formülü ve açımlayıcı faktör analizleri kullanılarak çözümlenmiştir. Öğretmenler tarafından oluşturulan yapılar birey ve kurum olmak üzere iki faktöre ayrışmaktadır. Birey faktörü ideal okul; kurum faktörü ise ideal olmayan okul özellikleri taşımaktadır. İdeal okul faktörünü temsil eden yapılar yönetici, öğretmen, öğrenci, veli, doyum, güven ve ast-üst ilişkileridir. İdeal olmayan okul faktöründe öğretmenlerin bilişsel kurguları sosyo-ekonomik çevre, okulun fiziki durumu, araç-gereç, hizmet-içi eğitim olanağı gibi yapılardır

Linac-LHC EP Collider Options

We describe various parameter scenarios for a ring-linac ep collider based on LHC and an independent electron linac. Luminosities between $10^{31}$ and $10^{33} cm^{-2}s^{-1}$ can be achieved with a s.c. linac, operated either in pulsed or in cw mode, with optional recirculation, at a total electric wallplug power of order 20 MW. Higher luminosities, of several $10^{33} cm^{-2}s^{-1}$ can be reached by investing more electric power or by energy recovery. Finally, merits of a linac-ring ep collider are discussed

Effect of cinnamon (Cinnamomum zeylanicum) bark oil on heat stress-induced changes in sperm production, testicular lipid peroxidation, testicular apoptosis, and androgenic receptor density in developing Japanese quails

The aim of this study was to investigate the effect of cinnamon bark oil (CBO) on heat stress (HS)-induced changes in sperm production, testicular lipid peroxidation, testicular apoptosis, and androgenic receptor (AR) density in developing Japanese quails. Fifteen-day-old 90 male chicks were assigned to two main groups. The first group (45 chicks) was kept in a thermoneutral room at 22 C for 24 h/day. The second group (45 chicks) was kept in a roomwith high ambient temperature at 34 C for 8 h/day (from9AM–5 PM) and at 22 C for 16 h/day. Each of these two main groups was then divided into three subgroups (CBO groups 0, 250, 500 ppm) consisting of 15 chicks (six treatment groups in 2 3 factorial order). Each of subgroups was replicated for three times and each replicate included five chicks. Heat stress caused significant decreases in body weight, spermatid and testicular sperm numbers, the density of testicular Bcl-2 (antiapoptotic marker) and AR immunopositivity, and significant increases in testicular lipid peroxidation level, the density of testicular Bax (apoptoticmarker) immunopositivity, and a Bax/Bcl-2 ratio along with some histopathologic damages. However, 250 and 500 ppm CBO supplementation provided significant improvements inHS-induced increased level of testicular lipid peroxidation, decreased number of spermatid and testicular sperm, decreased densities of Bcl-2 and AR immunopositivity, and some deteriorated testicular histopathologic lesions. In addition, although HS did not significantly affect the testicular glutathione level, addition of both 250 and 500 ppm CBO to diet of quails reared in both HS and thermoneutral conditions caused a significant increase when compared with quails without any consumption of CBO. In conclusion, HS-induced lipid peroxidation causes testicular damage in developing male Japanese quails and, consumption of CBO, which has antiperoxidative effect, protects their testes against HS