1,743 research outputs found

    Interview of Brother Miguel A. Campos, F.S.C.

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    Brother Miguel Campos was a joy to interview. I received a lot of great material from Brother Joseph Grabenstein in the Archives, and one article had the reaction of one woman who met him. She commented on his smile most of all. He greeted me right away with a big smile, and he smiled frequently throughout the interview. We were both feeling under the weather; I unfortunately did not know beforehand that he has Parkinson\u27s Disease. But he kept smiling and opened his memory to me. We began with talking about his childhood in Cuba and when he entered the Christian Brothers, and continued with all the impressive things he\u27s done for the Brothers. He never turned down a question, and when we left our first session, he encouraged me to ask more personal questions

    On acceptance conditions for membrane systems: characterisations of L and NL

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    In this paper we investigate the affect of various acceptance conditions on recogniser membrane systems without dissolution. We demonstrate that two particular acceptance conditions (one easier to program, the other easier to prove correctness) both characterise the same complexity class, NL. We also find that by restricting the acceptance conditions we obtain a characterisation of L. We obtain these results by investigating the connectivity properties of dependency graphs that model membrane system computations

    Obsessive-compulsive disorder and its related disorders: a reappraisal of obsessive-compulsive spectrum concepts

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    Obsessive-compulsive disorder (OCD) is a clinical syndrome whose hallmarks are excessive, anxiety-evoking thoughts and compulsive behaviors that are generally recognized as unreasonable, but which cause significant distress and impairment. When these are the exclusive symptoms, they constitute uncomplicated OCD. OCD may also occur in the context of other neuropsychiatric disorders, most commonly other anxiety and mood disorders. The question remains as to whether these combinations of disorders should be regarded as independent, cooccurring disorders or as different manifestations of an incompletely understood constellation of OCD spectrum disorders with a common etiology. Additional considerations are given here to two potential etiology-based subgroups: (i) an environmentally based group in which OCD occurs following apparent causal events such as streptococcal infections, brain injury, or atypical neuroleptic treatment; and (ii) a genomically based group in which OCD is related to chromosomal anomalies or specific genes. Considering the status of current research, the concept of OCD and OCD-related spectrum conditions seems fluid in 2010, and in need of ongoing reappraisal

    The Carnegie Supernova Project: The Low-Redshift Survey

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    Supernovae are essential to understanding the chemical evolution of the Universe. Type Ia supernovae also provide the most powerful observational tool currently available for studying the expansion history of the Universe and the nature of dark energy. Our basic knowledge of supernovae comes from the study of their photometric and spectroscopic properties. However, the presently available data sets of optical and near-infrared light curves of supernovae are rather small and/or heterogeneous, and employ photometric systems that are poorly characterized. Similarly, there are relatively few supernovae whose spectral evolution has been well sampled, both in wavelength and phase, with precise spectrophotometric observations. The low-redshift portion of the Carnegie Supernova Project (CSP) seeks to remedy this situation by providing photometry and spectrophotometry of a large sample of supernovae taken on telescope/filter/detector systems that are well understood and well characterized. During a five-year program which began in September 2004, we expect to obtain high-precision u'g'r'i'BVYJHKs light curves and optical spectrophotometry for about 250 supernovae of all types. In this paper we provide a detailed description of the CSP survey observing and data reduction methodology. In addition, we present preliminary photometry and spectra obtained for a few representative supernovae during the first observing campaign.Comment: 45 pages, 13 figures, 3 tables, accepted by PAS

    Generational Differences in Values between Hispanics in the United States and Four Latin American Countries

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    We examined similarities and differences in generational values and value orientation of 4,952 working adults in Argentina, Brazil, Colombia, and Mexico as compared to those of US Hispanics. US Hispanics demonstrated a primary value orientation of High Social/High Moral that is different from the four Latin American countries but closer to respondents from Argentina and Brazil. Values of generations across countries were more similar than values between generations in each country. Additionally, generational value schema was more similar in Latin American countries than in the US. Implications of these findings, study limitations and recommendations for further research are also discussed
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