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Turkish Journal of Mathematics

No abstract provided.

On F_S-Supplemented Primary Subgroups Of Finite Groups, Lujin Zhu, Long Miao

Turkish Journal of Mathematics

Let G be a finite group and F a formation of finite groups. A subgroup H of G is called F_s-supplemented in G if there exists a subnormal subgroup T of G such that G = HT and (H \cap T)H_G/H_G is contained in the F-hypercenter Z^F_{\infty}(G/H_G) of G/H_G. In this paper, we study the structure of finite groups by using F_s-supplemented subgroups.

On The Order Of Weighted Approximation By Positive Linear Operators, Tüli̇n Coşkun

Turkish Journal of Mathematics

An estimation of approximation of continuous functions by positive linear operators in weighted norm using the weighted modulus of continuity is established. Application of the main result to the known Gadjiyev-Ibragimov operators is given.

C^*-Convexity And C^*-Faces In *-Rings, Ali Ebrahimi Meymand, Gholam Hossein Esslamzadeh

Turkish Journal of Mathematics

Existence of rich algebraic, geometric and topological structures on self-adjoint operator algebras raises the general question that, for a particular theorem which of these structures have made the result work. The present paper is an effort toward the answer of this question, by investigating the role of algebraic structure in the subject of C^*-convexity. In this paper, we extend the notions of C^*-convexity, C^*-extreme point and C^*-face to *-rings and we study some of their properties. We introduce the notion of C^*-convex map on C^*-convex subsets of a *-ring. Moreover we identify optimal points of some unital *-homomorphisms on some …

Invariant Parametrizations And Complete Systems Of Global Invariants Of Curves In The Pseudo-Euclidean Geometry, Ömer Pekşen, Djavvat Khadjiev, İdri̇s Ören

Turkish Journal of Mathematics

Let M(n, p) be the group of all transformations of an n-dimensional pseudo-Euclidean space E^n_p of index p generated by all pseudo-orthogonal transformations and parallel translations of E^n_p. Definitions of a pseudo-Euclidean type of a curve, an invariant parametrization of a curve and an M(n, p)-equivalence of curves are introduced. All possible invariant parametrizations of a curve with a fixed pseudo-Euclidean type are described. The problem of the M(n, p)-equivalence of curves is reduced to that of paths. Global conditions of the M(n, p)-equivalence of curves are given in terms of the pseudo-Euclidean type of a curve and the system …

Small Covers Over Products Of A Polygon With A Simplex, Yanying Wang, Yanchang Chen

Turkish Journal of Mathematics

The equivariant homeomorphism class of an (orientable) small cover over a simple convex polytope P^n bijectively corresponds to the equivalence class of its (orientable) coloring under the action of automorphism group of face poset of P^n. By calculating the number of orbits of group actions we determine the number of equivariant homeomorphism classes of small covers over products of a polygon with a simplex. Moreover, we calculate the number of equivariant homeomorphism classes of all orientable small covers over the product.

Hilbert Functions And Betti Numbers Of Reverse Lexicographic Ideals In The Exterior Algebra, Marilena Crupi, Carmela Ferro'

Turkish Journal of Mathematics

Let K be a field, V a K-vector space with basis e_1,...,e_n and let E be the exterior algebra of V. We study the class of reverse lexicographic ideals in E. We analyze the behaviour of their Hilbert functions and Betti numbers.

L^P Regularity Of Some Weighted Bergman Projections On The Unit Disc, Yunus Ergi̇n Zeytuncu

Turkish Journal of Mathematics

We show that weighted Bergman projections, corresponding to weights of the form M(z)(1- z ^2)^\alpha, where \alpha > -1 and M(z) is a radially symmetric, strictly positive and at least C^2 function on \overline{D}, are L^p regular.

Superinjective Simplicial Maps Of The Complexes Of Curves On Nonorientable Surfaces, Elmas Irmak

Turkish Journal of Mathematics

We prove that each superinjective simplicial map of the complex of curves of a compact, connected, nonorientable surface is induced by a homeomorphism of the surface, if (g, n) \in {(1, 0), (1, 1), (2, 0), (2, 1), (3, 0)} or g + n \geq 5, where g is the genus of the surface and n is the number of the boundary components.

On The Biharmonic Vector Fields, Mustapha Djaa, Hichem Elhendi, Seddik Ouakkas

Turkish Journal of Mathematics

The problem studied in this paper is related to the biharmonicity of a vector field from a Riemannian manifold (M,g) to its tangent bundle TM equipped with the Sasaki metric g^s. We show that a vector field on a compact manifold is biharmonic if and only if is harmonic. We also investigate the biharmonicity of vector field of M, as a map from (M,g) to (TM,g^s).

Generalized Berwald Metrics, Esmaeil Peyghan, Akbar Tayebi

Turkish Journal of Mathematics

In this paper, we consider a class of Finsler metrics called generalized Berwald metrics which contains the class of Berwald metrics as a special case. We prove that every generalized Berwald metrics with non-zero scalar flag curvature or isotropic Berwald curvature is a Randers metric. Then we prove that on generalized Berwald metrics, the notions of generalized Landsberg and Landsberg curvatures are equivalent.

Weight And Nonlinearity Of Boolean Functions, Lavinia Corina Ciungu

Turkish Journal of Mathematics

In this paper we analyze the weight and the nonlinearity of various types of Boolean functions. We give some general results related to rotation symmetric Boolean functions, and in particular, we prove partially a conjecture stated by Cusick and Stanica in [3].

Results Of Generalized Local Cohomology Modules Of A-Minimax Modules, Hero Saremi

Turkish Journal of Mathematics

Let R be a commutative Noetherian ring, M a finitely generated R-module, and N a minimax R-module. It is shown that if a is an ideal of R, such that cd(a)=1, where cd is the cohomological dimension of a in R, then H_a^j(M, N) and Ext_R^i(M,H_a^j(N)) are a-cominimax for all i,j. Furthermore, if t is a non-negative integer such that H_a^j(M, N) is a-minimax for all j

Essential Normality For Certain Weighted Composition Operators On The Hardy Space H^2, Mahsa Fatehi, Bahram Khani Robati

Turkish Journal of Mathematics

We characterize the essentially normal weighted composition operators C_{\psi,\varphi} on the Hardy space H^2, whenever \varphi is a linear-fractional transformation and \psi \in A(D). Also we investigate the essential normality problem for some other weighted composition operators on H^2.

P-Rank And P-Groups In Algebraic Groups, Adrien Deloro

Turkish Journal of Mathematics

A few remarks on the measures of the p-rank of a group equipped with a dimension, including the refutation of a result of Burdges and Cherlin.

Background Factors That Affect Pilot Success In Regional Airline Training, Derek Alan Herchko

Doctoral Dissertations and Master's Theses

Following the Colgan Air accident in February 2009, the U.S. Congress and the traveling public called for increased flight experience requirements for pilots of regional airlines. In response, Congress enacted the Airline Safety and Federal Aviation Administration Act of 2010 . This legislation required that regional airline pilots, inclusive of first officers, have an Airline Transport Pilot certificate and a minimum of 1,500 total flight hours. This legislation had a provision that allowed the Federal Aviation Administration to create credit toward flight hours for pilots who had specific academic training courses above normal pilot certification. The Pilot Source Study was …

Ranging Of Aircraft Using Wide-Baseline Stereopsis, Kevin Todd Rigby

Doctoral Dissertations and Master's Theses

The purpose of this research was to investigate the efficacy of wide-baseline stereopsis as a method of ranging aircraft, specifically as a possible sense-and-avoid solution in Unmanned Aerial Systems. Two studies were performed: the first was an experimental pilot study to examine the ability of humans to range in-flight aircraft and the second a wide-baseline study of stereopsis to range in-flight aircraft using a baseline 14.32 meters and two 640 x 480 pixel charge coupled device camera. An experimental research design was used in both studies. Humans in the pilot study ranged aircraft with a mean absolute error of 50.34%. …

Foreword To Microfoundations Reconsidered: The Relationship Of Micro And Macroeconomics In Historical Perspective, John B. Davis

Economics Faculty Research and Publications

No abstract provided.

Does The Stock Market's Equity Risk Premium Respond To Consumer Confidence Or Is It The Other Way Around?, Abdur Chowdhury, Barry K. Mendelson

Economics Faculty Research and Publications

The increase in the equity risk premium during the 2007- 2009 Great Recession and the aging of the baby boomers in the United States have led analysts and financial industry experts to believe that risk aversion among stock investors has moved to a more-permanently higher range. If so, stocks would cease being an attractive asset class to be investing in for the future. In the past few years private investors have by and large shunned equities, just when stocks have become attractively priced and offer long-term potential for superior above-historical-average returns. Our empirical findings show that the recent increase in …

Disclosure And Cross-Listing: Evidence From Asia-Pacific Firms, Li Li Eng, Qianhua Ling

Accounting Faculty Research and Publications

Purpose – The purpose of this paper is to examine whether both country disclosure environment and firm-level disclosures are associated with cross-listing in the USA or London or otherwise.

Design/methodology/approach – The authors test the association using a sample of Asia-Pacific firms covered in the Standard and Poor's, 2001/2002 disclosure survey, capturing the country-level disclosure using the Center for International Financial Analysis and Research (CIFAR) score. The firm-level disclosure is measured using the S&P disclosure score. The authors conduct a logistic regression analysis and a two-stage least squares analysis to examine whether the outcome, cross-listing or not, is associated with …

2012-2013 Masthead, New York Law School

Masthead - New York Law School Law Review

No abstract provided.

Recovering From A Traumatic Job Loss, Ann Chu

Theses and Dissertations

Abstract In addition to satisfying basic human needs such as food and shelter, jobs can also satisfy an individual's need for identity, creative expression, and purpose. Job loss constitutes a major life stressor that can negatively affect one's financial stability, social standing, and sense of well being. Resilience represents those characteristics that help an individual bounce back quickly from a traumatic event. This study examined the role of resilience in laid-off employees recovering from job loss. Ten participants completed a survey and interview in this mixed methods study. Personal competence, social support, and family coherence were determined to most strongly …

An Exploration Of Transformational Learning In Adults As A Result Of Adventure Travel Experiences, Michael Bennett

Theses and Dissertations

The purpose of this exploratory qualitative research study was to identify the elements of adventure travel experiences that contribute to the process of transformational learning in adults. A qualitative research design was employed for this study. The sources of data were twelve pre-existing and de-identified interview transcriptions. A textual analysis was performed on the data, using an a priori approach to coding and analysis. An analysis of the data identified seven key themes that were critical for transformational learning in adults: (a) A Call to Adventure; (b) Being Open to Experience; (c) Entering a Zone Unknown; (d) Extra-Ordinary & Challenging …

Vivacity: Discovering Zora Through Her Words, Kerri J. Alexander

Electronic Theses and Dissertations

In its simplest form, storytelling is the passing of information from one person to the next. When storytelling illuminates time, place and purpose, it is then able to entertain, comfort and transport any listener. As the keeper of the imagination, the storyteller has inspired me as a performer. After reading Zora Neale Hurston‘s Every Tongue Got to Confess, I found my single-defining connection to the art of storytelling. Halimuhfack ultimately became my thesis performance piece inspired by the folk tales from Every Tongue Got To Confess. The new theatre piece shares Hurston‘s folk tale the way it may have once …

A Discussion Of Robert Schumann's Compositional Process In The Song Cycle Frauenliebe Und -Leben, Brittany Monique Denham

Electronic Theses and Dissertations

Robert Schumann’s compositional work during 1840 stands out as an unexpected turn of events. With relatively no background composing songs, Schumann suddenly produced a plethora of widely successful and monetarily lucrative songs all within one year. Perhaps most fascinating was the amount of detail Schumann placed into each song. This detail can be seen in the sketches which include the composer’s handwritten edits in both the piano and vocal scores. With a focus on Schumann’s song cycle, Frauenliebe und -leben the qualities of Schumann’s songs and the compositional process used to create the songs’ final versions are examined through this …

The Legacy Of Civil Rights Protest Music: Sweet Honey In The Rock's "The Ballad Of Harry T. Moore", Thomas Hyder

Electronic Theses and Dissertations

This study investigates the role music played in the Civil Rights Movement as a form of political protest. The first part of the studies analyzed how political protest music was used in the early part of the twentieth-century leading up to the Civil Rights Movement of the 1960s. An analysis of the role of music in African-American culture also provides a historical background to the music-making of the Civil Rights Movement. Specific musical forms such as topical ballads, freedom songs, and spirituals are examined. In addition, musical influences of African culture as well as religious influences on music-making during the …

Performing Jason Robert Brown's The Last Five Years: An Exercise In Communication On Stage And Off, David Z. Sucharski

Electronic Theses and Dissertations

Communication, in its most basic sense, is foundational for any personal, human interaction and relationship. As theatre artists, we are charged with communicating complex story lines, conceptual ideas, and emotion to an audience. Sound communication is paramount to every aspect of a musical production, be it communication between actors/characters, actor and director, amongst the production team, and arguable the most important, between the actors and the audience. My years of education as a Masters in Fine Arts candidate in Musical Theatre have been spent polishing my ability to communicate physical and emotional choices with greater accuracy, depth, and truth. By …

The Last Two Years Of David Brachman: Designing A Feature Film On A Micro Budget, Elizabeth Anne Sutphin

Electronic Theses and Dissertations

This thesis documents my creative process as the Production Designer on the feature length micro budget film The Last Two Years of David Brachman, written and directed by Marc Casilli. The film is a dark comedy chronicling the life of David Brachman, a twenty-five year old with a stagnant life that is seemingly leading nowhere, as he pledges on his twenty-fifth birthday to change the path of his life in the next two years or commit suicide if he fails. The overall design concept of the film is rooted in realism, but allowed to contain elements that will remove the …

Radio Drama: A "Visual Sound" Analysis Of John, George And Drew Baby, Pascha Weaver

Electronic Theses and Dissertations

Radio Plays are a form of classic American Theatre that relies on dialogue, music and sound effects to audibly enhance a story with no visual component. While these types of plays are no longer at the forefront of modern day theatrical experience, I believe these popular plays of the mid-20th century are derivative of an oral storytelling tradition and significant to American entertainment culture. This thesis will discuss the aspects of radio plays that viscerally captured audiences. While this concept can be applied to many popular America radio shows of the time, this thesis will focus on one form ; …

Who Do I Play: Appraising The Impact Of Teacher-In-Role With Kindergartners In An Esol Classroom, Kathryn Perkins Brantley

Electronic Theses and Dissertations

Educators employing process drama, a non-presentational dramatic form, establish memorable classroom environments where students co-author their learning with teachers. Process drama facilitators often use the dramatic structure of teacher-in-role to guide and support the students. An instructor heightens tension, introduces new ideas, and encourages participation by engaging alongside students as a character. An educator employing process drama needs to determine the appropriate type of role to impact the development of a classroom drama; while negotiating tension felt between desires for student-led discovery and the necessity of meeting curriculum benchmarks. Academic studies establish process drama as a tool to aid English …