The Linear Vector-Tensor Multiplet with Gauged Central Charge

We derive consistent superfield constraints for the linear vector-tensor multiplet with gauged central charge. The central charge transformations and the action turn out to be nonpolynomial in the gauge field.Comment: 8 pages, AMS-LaTe

Let’s Face It: The effect of orthognathic surgery on facial recognition algorithm analysis

Aim: To evaluate the ability of a publicly available facial recognition application program interface (API) to calculate similarity scores for pre- and post-surgical photographs of patients undergoing orthognathic surgeries. Our primary objective was to identify which surgical procedure(s) had the greatest effect(s) on similarity score. Methods: Standard treatment progress photographs for 25 retrospectively identified, orthodontic-orthognathic patients were analyzed using the API to calculate similarity scores between the pre- and post-surgical photographs. Photographs from two pre-surgical timepoints were compared as controls. Both relaxed and smiling photographs were included in the study to assess for the added impact of facial pose on similarity score. Surgical procedure(s) performed on each patient, gender, age at time of surgery, and ethnicity were recorded for statistical analysis. Nonparametric Kruskal-Wallis Rank Sum Tests were performed to univariately analyze the relationship between each categorical patient characteristic and each recognition score. Multiple comparison Wilcoxon Rank Sum Tests were performed on the subsequent statistically significant characteristics. P-Values were adjusted for using the Bonferroni correction technique. Results: Patients that had surgery on both jaws had a lower median similarity score, when comparing relaxed expressions before and after surgery, compared to those that had surgery only on the mandible (p = 0.014). It was also found that patients receiving LeFort and bilateral sagittal split osteotomies (BSSO) surgeries had a lower median similarity score compared to those that received only BSSO (p = 0.009). For the score comparing relaxed expressions before surgery versus smiling expressions after surgery, patients receiving two-jaw surgeries had lower scores than those that had surgery on only the mandible (p = 0.028). Patients that received LeFort and BSSO surgeries were also found to have lower similarity scores compared to patients that received only BSSO when comparing pre-surgical relaxed photographs to post-surgical smiling photographs (p = 0.036). Conclusions: Two-jaw surgeries were associated with a statistically significant decrease in similarity score when compared to one-jaw procedures. Pose was also found to be a factor influencing similarity scores, especially when comparing pre-surgical relaxed photographs to post-surgical smiling photographs

The Higgs Mechanism in N=2 Superspace

We describe the Higgs mechanism for general N=2 super Yang-Mills theories in a manifestly supersymmetric form based on the harmonic superspace.Comment: 18 pages, LaTeX, typos are correcte

Medical social work in the clinic and ward settings of a general hospital : a study of the medical social problems and the related social services in twenty-five medical clinic cases as compared with twenty-five medical ward cases at the Beth Israel Hospital /

Thesis (M.S.)--Boston University Includes bibliographical references (leaves 98-99)

Market conditions, default risk and credit spreads

This study empirically examine the impact of market conditions on credit spreads as motivated by recently developed structural credit risk models. Using credit default swap (CDS) spreads, we find that, in the time series, average credit spreads are decreasing in GDP growth rate, but increasing in GDP growth volatility. We document that credit spreads are lower when investor sentiment is high and when the systematic jump risk is low. In the cross section, we confirm that firm-level cash flow volatility raises credit spreads. More importantly, we demonstrate that the impact of market conditions on credit spreads is substantially affected by firm heterogeneity. During economic expansions, ceteris paribus, firms with high cash flow betas have lower credit spreads than those with low cash flow betas. This relation disappears during economic recessions, consistent with theoretical predictions. -- In diesem Arbeitspapier untersuchen wir empirisch, wie die gesamtwirtschaftlichen Bedingungen die Renditeabstände von Unternehmensanleihen, die mit einem Ausfallrisiko behaftet sind, beeinflussen. Dabei verwenden wir Spreads von Kreditausfallswaps (Credit Default Swap, CDS) als Näherungswert für Kreditspreads und stellen fest, dass die durchschnittlichen Kreditspreads im Zeitverlauf bei wirtschaftlicher Expansion niedriger und bei wirtschaftlicher Rezession höher sind. Wenn das Wirtschaftswachstum volatiler ist, führt dies ebenfalls zu höheren Kreditspreads. Wir stellen fest, dass Kreditspreads bei positiver Anlegerstimmung und geringem Risiko eines marktweiten Sprungs niedriger ausfallen. Firmenübergreifend stellen wir fest, dass ein auf Unternehmensebene volatiler Cashflow zu einer Erhöhung der Kreditspreads führt. Was noch entscheidender ist, wir zeigen, dass in Zeiten wirtschaftlicher Expansion ? bei ansonsten gleichen Bedingungen ? Unternehmen, deren Cashflow stark mit dem gesamtwirtschaftlichen Wachstum korreliert, geringere Kreditspreads aufweisen als solche mit einer schwachen Cashflow-Korrelation. Im Einklang mit den theoretischen Voraussagen verschwindet dieser Zusammenhang in Zeiten wirtschaftlicher Rezession.Credit Risk,Credit Default Swaps,Credit Spreads,Market Conditions

Application of the method of optimum increase of Carboniferous gass exploitation for the determination of its extractable amount from the space of attenuated plant of the Paskov Mine

A way of optimum extraction increase of Carboniferous gas which can be applied in any mine of the Ostrava-Karviná Mining District (OKMD) during the current period of the restructuralisation and mining attenuation

Proces mediacji. Typologia uczestników i szanse porozumienia

This paper is an analysis of mediation, in which special focus was put on the creativity of individuals in the world of social meanings. The typology of mediation participants and the ways in which they build a situation is presented, including: (i) types of social relations in advisory situations as described by Alicja Kargulowa; (ii) Roger Fisher’s, William Ury’s and Bruce Patton’s method of negotiations; and (iii) the work by Kenneth L. Thomas and Ralph H. Kilmann in which the relation between negotiators and the purpose of mediation, or the attitude of negotiators to its purpose and other participants of a conflict situation have been taken into account. This different approach to mediation allows the reader to see other aspects of the procedure. Contrary to the criminal trial, the vision of mediation presented here reveals that the settlement arrived at by the parties is not the only benefit of the procedure, as it does not only focus on facts but also on relationships and the interests of the parties.Looking at the process of mediation through the prism of the negotiating parties may be an inspiration and raise awareness. It also serves to ensure openness to the philosophy of restorative justice.W artykule podjęto analizę mediacji, eksponując indywidualną kreatywność jednostki w świecie znaczeń społecznych. Przedstawiono typologię uczestników mediacji i ich sposobów budowania sytuacji. Autorka pokazuje typy uczestników, uwzględniając: (1) sposoby nawiązywania rodzajów stosunków społecznych w sytuacjach poradniczych opisanych przez Alicję Kargulową; (2) metody negocjowania wyróżnione przez Rogera Fishera, Williama Ury’ego, Bruce’a Pattona oraz (3) opracowanie Kennetha L. Thomasa and Ralpha H. Kilmanna uwzględniające stosunek negocjatorów do celu i innych osób w sytuacji konfliktowej. Pokazanie odmiennego od prezentowanych dotychczas obrazu mediacji zwraca uwagę na inne niż prawne aspekty mediacji w sprawach karnych. Przedstawiona wizja mediacji pozwala dostrzec, że spisana przez strony ugoda nie jest jedyną korzyścią ze stosowania tej procedury, która w przeciwieństwie do procesu sądowego koncentruje się nie tylko na faktach, lecz także na relacjach i interesach działających i kształtujących przebieg interakcji stron. Być może spojrzenie na przebieg procesu mediacji przez pryzmat negocjujących stron konfliktu stanie się inspiracją czy będzie służyć uwrażliwieniu i otwarciu na filozofię sprawiedliwości naprawczej

Kokemus työn merkityksestä itsensä kehittämisen kautta

Tutkielmassani selvitin neljän suomenruotsalaisen, 28–40 vuotiaan projektipäällikön tapaa kokea työn merkitys. Tutkielma kuuluu hallintotieteiden, erityisesti johtamisen psykologian alueelle. Teoreettinen viitekehykseni on hermeneuttis fenomenologinen, korostaen metodina hermeneuttistä kehää ja sen avulla luotua tulkintaa ja synteesiä vastauksista yhtenä kokonaisuutena. Laajennan tulkintaani työn mielekkyyttä, merkityksellisyyttä ja uudenlaista psykologista sopimusta käsittelevien tutkimusten avulla. Tuloksissani kokemus työn merkityksestä kietoutuu erityisesti työn kautta itsensä kehittämisen ympärille. Työn toivotaan olevan proaktiivista, jolloin tekijälle jää enemmän vapautta toteuttaa annettuja tehtäviä haluamallaan tavalla. Työn toivotaan olevan haastavaa ja monipuolista, jotta oma substanssiosaaminen voi kehittyä kohti parempia työtehtäviä. Kehittymisen ihanne muodostuu tärkeäksi tavaksi kokea työssä mielekkyyttä, mutta se on myös välttämättömyys epävarmojen ja lyhyiden työsuhteiden maailmassa, johon haastattelemieni henkilöiden sukupolvi on kasvanut omaksumalla uudenlaisen psykologisen sopimuksen pääpiirteet. Kokemus työn merkityksestä pitää sisällään myös yleisiä, inhimillisiä ulottuvuuksia. Näihin lukeutuu toive saada työstä kiitosta ja palautetta esimiehiltä sekä työkavereilta. Työn, joka on abstraktia ajattelutyötä luonteeltaan, halutaan vaikuttavan myös konkreettisella tasolla. Työn ja vapaa-ajan suhde kiireen keskellä sekä toisinaan huonon johtamisen aiheuttama stressi koetaan mielekkyyttä laskevina tekijöinä