Exotic Top Partners and Little Higgs

Little Higgs models often give rise to top partners beyond the minimal ones necessary for the cancellation of quadratic divergences. We review how this occurs and discuss the phenomenology of these exotic states. We emphasize the possible importance of new pseudo-Nambu-Goldstone bosons in top partner decays. Indeed, cascade decays of exotic top partners may be the best way to discover these new bosons. We illustrate these points with a new Little Higgs construction based on an SO(10)/SO(5)^2 coset structure, which fills a gap in the model building literature. These observations motivate new search strategies for top partners at the LHC, including for final states with b-jets and a large multiplicity of electroweak bosons.Comment: 27 pages, 2 figures, 4 tables; v3: JHEP revision -- updated to include discussion of naturalness and section 2.1 expande

The Effects Of Testosterone Propionate On The Testes Seminal Vesicles And Prostate Of The Intact And Castrate Hamsters

Due to the gradual accumulation of interest and information on the extensive dependency of organisms on the hormones, there are many references to experiments conducted in this field to be found in the literature. The androgen, which is any substance possessing masculinizing activity, has been studied extensively with respect to its effect on the male animal, However, according to the literature cited, a very limited amount of work has been published using the hamster as an assay of the male hormone. As examples of the progressive studies of the male hormone the following demonstrations stand out: first, the study of the internal secretory action of the testes by Berthol in 1849; second, the production of comb growth in capons by injections of a saline extract of testicular tissue by Pezard in 1911; third, the isolation of an active lipoid extract of bull^ testes by McGee in 1927; fourth, the isolation of androsterone from human urine by Betenandt in 1931; fifth, the synthetic production of androsterone in 1934 by Ruzicha; sixth, the synthetic preparation of testosterone in 1935 by Betenandt and Hanlsh; seventh, the preparation of testosterone propionate by the esterification of testosterone by Parkes in 1936; eighth, the preparation of the long-acting androgen, testosterone beta-cyclopentyl propionate by Otto, Kwzenga, Lester and Johnson (1952). Many methods for detecting the male hormone in mammals were necessary in order to effectively study the reactions of the hormones in castrated and intact animals. The availability of androgens as pure chemical compounds makes it possible not only to compare their effects in organisms with the effects of hormones normally secreted by the testes but also to extend the knowledge of their actions. It is important, therefore, to study closely the comparative responses of the organism under the influence of naturally secreted hormones and the pure chemical substances. Callow and Parkes (1935), and Blyth, Podds, and Gallimore (1932) used the capon chick comb for their assay of the testicular hormone. Immature rats and guinea-pigs were used by ICorenchevsky (1932), and Callow and Deansly (1935) for assaying the potency of the male hormone. The latter method is used more extensively because it is cheaper and has proved as effective as the former

A review of random matrix theory with an application to biological data

Random matrix theory (RMT) is an area of study that has applications in a wide variety of scientific disciplines. The foundation of RMT is based on the analysis of the eigenvalue behavior of matrices. The eigenvalues of a random matrix (a matrix with stochastic entries) will behave differently than the eigenvalues from a matrix with non-random properties. Studying this bifurcation of the eigenvalue behavior provides the means to which system-specific signals can be distinguished from randomness. In particular, RMT provides an algorithmic approach to objectively remove noise from matrices with embedded signals. Major advances in data acquisition capabilities have changed the way research is conducted in many fields. Biological sciences have been revolutionized with the advent of high-throughput techniques that enable genome-wide measurements and a systems-level approach to biology. These new techniques are very promising, yet they produce a massive influx of data, which presents unique data processing challenges. A major task researchers are confronted with is how to properly filter out inherent noise from the data, while not losing valuable information. Studies have shown that RMT is an effective method to objectively process biological data. In this thesis, the underpinnings of RMT are explained and the function of the RMT algorithm used for data filtering is described. A survey of network analysis tools is also included as a way to provide insight on how to begin a rigorous, mathematical analysis of networks. Furthermore, the results of applying the RMT algorithm to a set of miRNA data extracted from the Bos taurus (domestic cow) are provided. The results of applying the RMT algorithm to the data are provided along with an implementation of the resulting network into a network analysis tool. These preliminary results demonstrate the facility of RMT coupled with network analysis tools as a basis for biological discovery --Abstract, page iii

Identity Matters: An Exploratory, Mixed Methods Case Study to Examine the Influence of Athlete and Student Identity Salience on the Giving Patterns of Student-Athletes at a Highly Selective Midwestern Private University

This dissertation consists of an interpretive, bounded case study conducted at the University of Chicago, a selective private research institution with a Division III athletics program. At selective institutions, alumni-athletes represent a crucial fundraising source for the athletics department. Research suggests that the level of identity to one’s undergraduate alma mater correlates highly with the likelihood of giving. However, little is known about how the identity make up of these unique student-athletes influences their giving patterns. Using a mixed method, qualitative-dominant approach, the researcher sought to explore how and to what extent identity salience to dual roles as student and athlete influenced University of Chicago alumni-athletes’ philanthropic behavior towards their alma maters’ athletics department. Though no definitive connections were made between identity salience and giving designations, the student-athlete identity formation process remains unique at selective institutions and, in some fashion, influences giving behavior. As the reliance on private philanthropy has increased at selective institutions, particularly in their athletics departments, it is imperative that administrators from the academy, the athletics department, and the development office collaborate to create a campus environment that is most conducive to maximizing alumni-athlete philanthropy. Institutional recommendations and suggested areas of scholarly inquiry are aimed at selective institutions, where the athletics program philosophically operates as any other extracurricular activity yet has unique challenges that merit specific support

Surveying the Field: State-Level Findings From the 2008 Parole Practices Survey

Surveys the use of evidence-based parole supervision practices based on a risk reduction approach across states; obstacles to their implementation; and approaches to enhancing parolee motivation. Profiles efforts to improve practices in three states