Path Integral Solution of PT-/non-PT-Symmetric and non-Hermitian Morse Potential

Path integral solutions are obtained for the the PT-/non-PT-Symmetric and non-Hermitian Morse Potential. Energy eigenvalues and the corresponding wave functions are obtained.Comment: 11 Page

Coherent States for PT-/Non-PT-Symmetric and Non-Hermitian Morse Potential via Path Integral Method

We discuss the coherent states for PT-/non-PT-Symmetric and non-Hermitian generalized Morse Potential obtained by using path integral formalism over the holomorphic coordinates. We transform the action of generalized Morse potential into two harmonic oscillators with a new parametric time to establish the parametric time coherent states. We calculate the energy eigenvalues and the corresponding wave functions in parabolic coordinates.Comment: 14 page

Contrasting development of Pleistocene warm temperature regimes across the Arctic

Late Pleistocene records from the North Atlantic characterize intervals of major interglacials as times of comparable ocean warmth (+-1-2°C) due to enhanced poleward flow of warm North Atlantic surface waters. A number of recent observations and interpretations from various climate archives would imply varying impacts on the arctic environment during older interglacials. Among warm periods of the past 500 ka, marine isotope stage 11 (MIS 11) is often named as the prominent interglacial phase with a particularly tight global-scale climate connection. For Greenland, it was even suggested that the ice sheet was so strongly reduced in size that trees were able to thrive. And as noted in records from Lake El’gygytgyn in NE Siberia, average temperatures and precipitations exceeded those of the Holocene by far. Indeed, this interpretation of a rather moist and warm climate over Siberia seems to be in line also with assumptions concluded from other lake (Baikal) and speleothem records. In terms of meridional transfer of ocean-atmosphere heat across the North Atlantic, the Nordic Seas comprise the major gateway to the Arctic Ocean. By investigating in detail the oceanic surface ocean warmth during MIS 11 we cannot identify overly enhanced heat flow from the North Atlantic into the Arctic during this interglacial interval. As further deduced from our data, subsequent warm periods (e.g., MIS 5e and MIS 1) appear to have had significantly warmer surface ocean conditions than MIS 11. Moreover, sediment records from close to Greenland would imply a very active eastern ice sheet margin throughout MIS11 with regard to iceberg release rates and occurrence of sea ice. It is therefore proposed that the observation of rather cold surface conditions in the Nordic Seas but comparatively warm temperature regime over the Pacific side of the Arctic either resulted in or caused a distinct cross-arctic climate contrast. That situation significantly changed atmospheric circulation patterns with effects on arctic albedo and associated feedback factors, such as seasonal sea ice extent as well as circum-arctic vegetation, snow cover, and moisture supply

Relationship between obsessive beliefs and symptoms in patients with obsessive compulsive disorder

Introduction: Misinterpretation of intrusive thoughts because of obsessive beliefs has been thought to be important in the development of obsessive compulsive symptoms. In current study, (I) the difference between OCD patients and healthy controls in regard of obsessive beliefs and (II) the relation of obsesive beliefs with the prevelance and severity of obsessive compulsive symptoms was investigated. Methods: The current study included 47 OCD patients and 44 healthy controls who have same properties with regard to age, sex and duration of education. All subjects were applied to Obsessive Beliefs Scale, Maudsley Obsessive Compulsive Scale, Hamilton Depression Rating Scale and Hamilton Anxiety Rating Scale. OCD patients were applied to Yale Brown Obsessive Compulsive Scale as well as the other scales. Results: In analyses by controlling depression and anxiety scores, OCD patients had significantly higher scores than controls, with regard to all subscales of Obsessive Beliefs Scale. Also, prevalence of obsessive compulsive symptoms other than cleaning were correlated with obsessive beliefs about “responsibility and threat estimation” and “perfectionism and need for certainty”. Hovewer, there was no correlation in between severity of obsessive compulsive symptoms and subscale scores of Obsessive Beliefs Scale. Conclusion: Excluding the effects of depression and anxiety, generally the results suggests that obsessive beliefs have an important role for development of obsessive compulsive symptoms. Future studies of seperated OCD subgroup with regard to obsessive compulsive symptoms will be helpful in determinig the difference among these subgroups in regard of obsessive beliefs. © 2015 by Turkish Association of Neuropsychiatry

Comparison of the effectiveness of chlorine, ozone, and photocatalytic disinfection in reducing the risk of antibiotic resistance pollution

Effectiveness of conventional chlorine and ozone disinfection on reduction of antibiotic resistance was compared with less commonly applied heterogeneous photocatalytic process. For this purpose plasmid DNA isolated from a multi-resistant Escherichia coli (E. coli) HB101 was treated in two different concentrations with the three oxidation processes. Oxidative damage on the plasmid DNA was analyzed with gel electrophoresis by comparing the extent of conformational changes in the DNA structure. The effectiveness of the applied oxidant in reducing the risk of resistance transfer was also evaluated by comparing the ability of treated plasmid DNA to transform competent cells. Chlorine did not affect plasmid DNA structure at the studied doses, while ozone and photocatalytic treatment resulted in conformational changes and the damage increased with increasing oxidant doses. Transformation experiments confirmed a similar trend. Chlorine did not affect the transformability and the cell counts of competent cells transformed with chlorine treated plasmid DNA were similar to those transformed by non-treated plasmid DNA in the control experiments

Robert Musil’in “ Grigia” Adlı novelinde benlik arayışı

Bu çalışmada, 20. yüzyıl Alman edebiyatında kendine özgü üslubuyla adından sıkça söz ettiren Avusturyalı yazar Robert Musil’in “Üç Kadın” adlı novel üçlemesinin ilki olan “Grigia”nın tematik açıdan bir analizi yapılmıştır. Öncelikle yazarın yaşadığı dönemin tarihsel ve felsefi arka planında hangi olayların ve düşüncelerin olduğuna yer verilerek bir literatür tartışması ortaya konulmuştur. Sonrasında yazarın hayatı ve yazınsal kimliği üzerine bilgi verilerek yazın anlayışına, yapıtlarında vermek istediği mesaja dikkat çekilmiştir. Ele alınan novelde kahramanların yaşantı dünyasından hareketle bireyin özünü bulma arayışı içerisinde sürüklendiği hayatın bir panoraması çizilmeye çalışılmıştır. Modern hayatın içine hapsolmuş bireyin kendini gerçekleştirme yolunda attığı adımlar somut bir şekilde gözler önüne serilmiştir. Yapılan psikolojik analizler neticesinde başkahraman Homo’nun içinde bulunduğu durum ve yaşadığı bunalım daha iyi anlaşılmıştır

Analysis of large scale linear programming problems with embedded network structures: Detection and solution algorithms

This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Linear programming (LP) models that contain a (substantial) network structure frequently arise in many real life applications. In this thesis, we investigate two main questions; i) how an embedded network structure can be detected, ii) how the network structure can be exploited to create improved sparse simplex solution algorithms. In order to extract an embedded pure network structure from a general LP problem we develop two new heuristics. The first heuristic is an alternative multi-stage generalised upper bounds (GUB) based approach which finds as many GUB subsets as possible. In order to identify a GUB subset two different approaches are introduced; the first is based on the notion of Markowitz merit count and the second exploits an independent set in the corresponding graph. The second heuristic is based on the generalised signed graph of the coefficient matrix. This heuristic determines whether the given LP problem is an entirely pure network; this is in contrast to all previously known heuristics. Using generalised signed graphs, we prove that the problem of detecting the maximum size embedded network structure within an LP problem is NP-hard. The two detection algorithms perform very well computationally and make positive contributions to the known body of results for the embedded network detection. For computational solution a decomposition based approach is presented which solves a network problem with side constraints. In this approach, the original coefficient matrix is partitioned into the network and the non-network parts. For the partitioned problem, we investigate two alternative decomposition techniques namely, Lagrangean relaxation and Benders decomposition. Active variables identified by these procedures are then used to create an advanced basis for the original problem. The computational results of applying these techniques to a selection of Netlib models are encouraging. The development and computational investigation of this solution algorithm constitute further contribution made by the research reported in this thesis.This study is funded by the Turkish Educational Council and Mugla University

Assessment in CLIL

The aim of this talk is to explore assessment in higher education and support for learners during their academic education. It investigates the assessment methods that provide success for universities and learners. Universities which implement CLIL should assess learners who would like to attend a programme in English without taking account of their English language qualifications. This assessment should be done in writing, listening and comprehension, speaking and reading and comprehension. In the literature, formative and summative assessments are considered. Formative assessment is ongoing, 'more complex as its intention is to be directly diagnostics with a view to immediately impacting on learner's next steps' (Coyle et al, 2010). Summative assessment occurs at the end of the term or course. McKay, 2006 divides assessment into three phases: design, operationalization and administration phase. If these three phases can't be embedded in the classroom as they are, they can be introduced as a set of questions; why?, how? and what

The Role of Different Types of Feedback in the Reciprocal Interaction of Teaching Performance and Self-efficacy Belief

The purpose of this study was to explore the role of feedback based on self-efficacy belief sources in the reciprocal interaction of teaching performance and self-efficacy beliefs. A single case study design was employed to address and began to bridge the gap in our understanding of the relationship between feedback, self-efficacy belief and teaching performance. The data for this study were collected in the form of semi-structured interviews from 6 volunteer 5th-grade chemistry student teachers. The data were analyzed based on an inductive analytical approach. The results indicated that different types of feedback based on self-efficacy belief sources directly affected the student teachers’ self-efficacy beliefs and teaching performance. It may be concluded that different types of feedback provided key paths for student teachers to better understand their own developing teaching performance and that of other teachers