Recent Results from HEGRA (Gamma-Ray Observations with the HEGRA Stereoscopic System of 5 Cherenkov Telescopes)

The HEGRA collaboration has achieved outstanding results during the operation of the six imaging atmospheric Cherenkov telescopes from 1996 to 2002. The experimental work pioneered the field of TeV gamma-ray astronomy with observations during partial moon time and mainly by applying the stereoscopic observation mode using a system of five Cherenkov telescopes. Concerning Galactic objects the HEGRA observations have led to a precise measurement of the energy spectrum of the Crab nebula between 0.5 and 80 TeV, the detection of the first shell type supernova remnant in the Northern hemisphere (Cassiopeia A) and the investigation of the yet unidentified HEGRA TeV gamma-ray source TeV J2032+4130 in the Cygnus region. In addition, a large fraction of the Galactic plane has been studied during dedicated scans. Following the most precise measurements of the energy spectra of the well known extragalactic objects Mkn 421 and Mkn 501, the blazars H 1426+428 and 1ES 1959+650 have just been established as sources of TeV photons in the last two years. Extensive multi-wavelength campaigns have been successfully performed and spectroscopy of these four objects gives important clues for the understanding of the nonthermal emission processes and also on the optical to infrared part of the spectrum of the extragalactic background light. Recently, strong evidence for the nearby giant radio galaxy M 87 being a TeV gamma-ray emitter has been obtained. Some of these results are highlighted in this article.Comment: to appear in the Proceedings of the HEP2003 Europhysics Conference in Aachen, Germany (July 2003

Scientometric Analysis and Density-Equalizing Mapping

Pulmonary hypertension (PH) is characterized by the increase of the mean pulmonary arterial pressure in the lung circulation. Despite the large number of experimental and clinical studies conducted on pulmonary hypertension, there is no comprehensive work that analyzed the global research activity on PH so far. We retrieved the bibliometric data of the publications on pulmonary hypertension for two periods from the Web of science database. Here, we set the first investigation period from 1900 to 2007 (t1) due to the cited half life of articles and the relating difficulties to interpret the citation parameters. The second evaluation period (t2) covers the time interval from 2008 onwards including the year 2015. The data were analyzed and processed to density-equalizing maps using the NewQIS platform. A total number of 18,986 publications were identified in t1 that come from 85 countries. The US published the highest number of publications (n = 7,290), followed by the UK, Germany, Japan and France. In t2 19,676 items could be found worked out by 130 countries. The raking started just the same with the USA as most publishing nation with 7,127 publications on PH, followed by the UK and Germany. Japan fell back on 6th place, whereas China came into view on the 5th position. Analyzing the average citation rate as a parameter for research quality, Mexico reached the highest value in t1 and Ireland in t2. While, the country specific h-index underlined the leading position of the US research in both evaluation periods again. The average number of international collaboration items was expanding from none in 1978 to 530 items in 2015 with the USA as the country with the highest number of collaboration articles. The present study is the first large scale density-equalizing mapping and scientometric analysis of global PH research activity. Our data draw a sketch of the global research architecture in this field, indicating a need for specific research programs in countries with a lower human development index

Analysis of the complement sensitivity of oral treponemes and the potential influence of FH binding, FH cleavage and dentilisin activity on the pathogenesis of periodontal disease

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/108655/1/omi12054.pd

Lack of Mutual Respect in Relationship The Endangered Partner

Violence in a relationship and in a family setting has been an issue of concern to various interest groups and professional organizations. Of particular interest in this article is violence against women in a relationship. While there is an abundance of knowledge on violence against women in general, intimate or partner femicide seems to have received less attention. Unfortunately, the incidence of violence against women, and intimate femicide in particular, has been an issue of concern in the African setting. This article examines the trends of intimate femicide in an African setting in general, and in Botswana in particular. The increase in intimate femicide is an issue of concern, which calls for collective effort to address. This article also examines trends offemicide in Botswana, and the antecedents and the precipitating factors. Some studies have implicated societal and cultural dynamics as playing significant roles in intimate femicide in the African setting. It is believed that the patriarchal nature of most African settings and the ideology of male supremacy have relegated women to a subordinate role. Consequently, respect for women in any relationship with men is lopsided in favor of men and has led to abuse of women, including intimate femicide. Other militating factors in intimate femicide ,are examined and the implications for counseling to assist the endangered female partner are discussed

A Comparison of Ancient Roman and Greek Norms Regarding Sexuality and Gender

Sex, sexuality, and gender norms continue to be a pressing matter in the modern political and social scene, with debates revolving around several important topics such as means of expression, comfort, biology, culture, among many others, too numerous to list entirely. The existence of these issues is not new, however, as every civilization must establish its own norms and mores in regards to these issues. Among the most significant cultures to influence the development of modern western civilizations, the classical Greco-Roman culture which developed throughout the western Mediterranean must be considered amongst the foremost; and their viewpoints of these issues are no different. While nothing exactly matches perfectly today to the classical opinions, it is still imperative to trace the origins of these opinions so that one may be able to follow their development to the modern ideas which exist today. This paper represents research done for two different assignments required as a capstone for the Classical Civilizations degree, showcasing research done in regards in the specific topic area having already been introduced, but showcasing both the Roman norms as well as those of the two most prominent Greek City-State, Athens and Sparta

Shape and blocking effects on odd-even mass differences and rotational motion of nuclei

Nuclear shapes and odd-nucleon blockings strongly influence the odd-even differences of nuclear masses. When such effects are taken into account, the determination of the pairing strength is modified resulting in larger pair gaps. The modified pairing strength leads to an improved self-consistent description of moments of inertia and backbending frequencies, with no additional parameters.Comment: 7 pages, 3 figures, subm to PR

WISC-III profile patterns of learning disabled children

The present study examined the performance of a heterogeneous population of learning disabled children (N=171) and children with learning disabilities in reading (LD-R), math (LD-M), and reading and math (LD-R+M) on the WISC-III ACID and SCAD subtests (Arithmetic, Coding, Information, Digit Span, and Symbol Search). Archival WISC-III scores of children that have been verified as having a learning disability in fourteen Midwestern school systems were used to answer the research questions in this study. Two different methods of examining performance on the ACID and SCAD subtests were used in this study, the index score method and the profile method. The results showed that the heterogeneous LD sample performed significantly lower on the ACID index than on the SCAD index, p =.017. The subgroups (LD-R, LD-M, LD-R+M) did not significantly differ from each other on ACID index or the SCAD index, p = .108. Also, the ACID and SCAD indexes did not differ for the subgroups, p = .424. However, the Arithmetic subtest was low for the LD-M group relative to the LD-R group. Additionally, the Information subtest was low for the LD-R group relative to the LD-M group. The final index score comparison showed that the Freedom From Distractibility (FD) portion of the SCAD index was significantly lower than the Processing Speed (PS) portion of the SCAD index for the LD-R group, p= .006, the LD-M group, p = .002, and the LD-R+M group, p= .004. The heterogeneous LD sample performed equally poorly on the ACID and SCAD profiles. However, for the subgroups the LD-M group displayed greater frequencies of the ACID and SCAD profiles than the LD-R or LD-R+M groups. Although the current study had some limitations the results have significant implications for school psychologists assessing students with learning disabilities

Creating Visuals for a Start-Up Company

As part of the capstone in the Visual Communication Technology major, this project is intended to help a community member with a visual/graphic need as well as help me to understand the process of being a professional in the field. The main objective was to determine the basic visual needs of a start-up company and how to successfully produce those materials

Hermione

HERMIONE by Kat Goetting Englis