174 research outputs found

    Comparison of Nuclear and Explosive Destruct Concepts for Nuclear Rocket Engines

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    Nuclear and explosive destruct concepts for nuclear rocket engine

    The experience of military separation/deployment for young children and families

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    This presentation will discuss the unique perspective of younger children experiencing a parental separation related to military assignments or deployments for at least 3 months duration

    Dose calculation models for re-entering nuclear rocket debris

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    Mathematical models of biological hazards from nuclear rocket engine flight failure

    Sistema di adattamento automatico di applicazioni interattive desktop per dispositivi mobili

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    Il lavoro di tesi presenta un sistema, basato su un proxy server, per l'adattamento automatico di pagine web all'accesso tramite dispositivi mobili. Il sistema esegue il processo di trasformazione prendendo in considerazione la descrizione logica delle pagine ed il costo in termini di spazio occupato dagli elementi che compongono l’interfaccia utente (testo, immagini, bottoni, ecc)

    Tracce ebraiche nella Platea di Santo Stefano del Bosco

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    Jewish traces in the Platea of Santo Stefano del Bosco This article examines the data on the Jewish presence in Calabria according to the Platea of the Charterhouse of Santo Stefano del Bosco (presently Serra San Bruno). This document, compiled in 1530, contains the registration of all the real estate of the Charterhouse; and among the various toponymic indications and mention of owners or former owners of the assets, it is possible to find some spures of Jews and neophytes.Nell'articolo sono esaminati i dati su alcune presenze ebraiche in Calabria in base alla Platea della Certosa di Santo Stefano del Bosco (oggi, Serra San Bruno). L'elenco dei possedimenti della certosa, compilato nel 1530, segnala infatti, oltre a nomi di ebrei e neofiti, alcuni toponimi che possono essere considerate altre tracce di presenza ebraica nella regione

    Mapping the field of military nursing research 1990–2013: A bibliometric review

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    BACKGROUND: Over the past 20 years, military forces worldwide have been engaged in a number of conflicts and humanitarian operations and the impact of this on the field of military nursing research is unknown. The aim of this bibliometric review was to investigate the research field of military nursing in the main databases with the purpose to describe trends in military nursing research since 1990. OBJECTIVES: To identify military nursing papers in the main databases and to describe the field of military nursing research for the period 1990–2013 in terms of research productivity, trends in topic focus, trends in authorship and country of publication. METHOD: Bibliometric review of published military nursing research papers was undertaken in March 2014 and data was extracted and coded and trends were analyzed using SPSSv21. RESULTS: In total 237 articles were included in the review. The majority of publications emanating from America (n = 175, 73.8%) and the quantity of papers has increased significantly since the commencement of the second Gulf War in Iraq from 2003 onwards (n = 156, 65.8%). This has been accompanied by a shift in topic focus from professional (n = 16, 20.3%) and occupational issues (n = 17, 21.5%) pre 2003, to clinical (n = 48, 30.4%) and an increase in multidisciplinary research from 4% in 1990–94 to 29% in 2010–13. The mean citations were 10.6 (sd 17.0) and the mean references per paper post 2003 showed a marked increase from 23.5 to 25.4. CONCLUSION: The military nursing research field appears stronger than it has been in the past twenty years and has demonstrated increased transferability to other fields. To maintain this momentum and further develop the field of military nursing research, military forces worldwide need to devise focused nursing research strategies that involve international and multidisciplinary collaboration.Department of HE and Training approved lis

    High-efficiency production of 5-hydroxyectoine using metabolically engineered Corynebacterium glutamicum

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    Background: Extremolytes enable microbes to withstand even the most extreme conditions in nature. Due to their unique protective properties, the small organic molecules, more and more, become high-value active ingredients for the cosmetics and the pharmaceutical industries. While ectoine, the industrial extremolyte fagship, has been successfully commercialized before, an economically viable route to its highly interesting derivative 5-hydroxyectoine (hydroxyectoine) is not existing. Results: Here, we demonstrate high-level hydroxyectoine production, using metabolically engineered strains of C. glutamicum that express a codon-optimized, heterologous ectD gene, encoding for ectoine hydroxylase, to convert supplemented ectoine in the presence of sucrose as growth substrate into the desired derivative. Fourteen out of sixteen codon-optimized ectD variants from phylogenetically diverse bacterial and archaeal donors enabled hydroxyectoine production, showing the strategy to work almost regardless of the origin of the gene. The genes from Pseudomonas stutzeri (PST) and Mycobacterium smegmatis (MSM) worked best and enabled hydroxyectoine production up to 97% yield. Metabolic analyses revealed high enrichment of the ectoines inside the cells, which, inter alia, reduced the synthesis of other compatible solutes, including proline and trehalose. After further optimization, C. glutamicum Ptuf ectDPST achieved a titre of 74 g L−1 hydroxyectoine at 70% selectivity within 12 h, using a simple batch process. In a two-step procedure, hydroxyectoine production from ectoine, previously synthesized fermentatively with C. glutamicum ectABCopt, was successfully achieved without intermediate purifcation. Conclusions: C. glutamicum is a well-known and industrially proven host, allowing the synthesis of commercial products with granted GRAS status, a great beneft for a safe production of hydroxyectoine as active ingredient for cosmetic and pharmaceutical applications. Because ectoine is already available at commercial scale, its use as precursor appears straightforward. In the future, two-step processes might provide hydroxyectoine de novo from sugar

    Making the hard decisions: Ethical issues encountered by military nurses during wartime

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    Session presented on Monday, November 9, 2015: Aims: The purpose of this study was to address the research question: How do military nurses identify, assess, manage, and personally resolve ethical issues occurring in nursing practice during wartime deployments? Background: Ethical issues emerging from the current conflicts in Iraq and Afghanistan have mainly considered those encountered by medical officers in triage and most recently with enemy prisoners of war. Aside from anectodatal accounts, less is known about the ethical issues encountered by military nurses in wartime. Studies prior to the current conflict have focused upon military nursing advocacy and moral distress. One study, conducted prior to the current conflicts detailed the frequency and distress associated with issues emerging from Operation Desert Storm/Desert Shield and humanitarian missions, is dated in light of the intensity and duration of the Iraq and Afghan wars. Little research documents ethical situations encountered primarily by nurses during a military wartime deployment. Many military members are returning from deployment suffering from compassion fatigue, burnout, and PTSD. Yet, the question is perhaps those conditions are as a result of, or compounded by, the lingering uncertainty or distress related to how one, multiple, or recurring ethical situations were resolved or handled. Consequently, this study represents an exploration of these particular issues with a planned direction to take the findings into follow on projects for further exploration and interventions that emerge from the results of this study. Methods: Using grounded theory, 34 Army, Navy and Air Force nurses were interviewed to elicit their experiences with ethical issues while deployed in support of the recent wars. Using a focused interview guide, interviews were conducted until theoretical saturation was achieved. Data analysis was conducted using methods detailed by Strauss and Corbin (1998). Rigor was maintained in study methods and analysis using tenets from Lincoln and Guba (1985) and Morse et al\u27s (2002) verification strategies. Results: Participants represented primarily Army (55%) active duty (83%) female nurses (71%) who had deployed to Iraq (52%), Afghanistan (32%) or both (16%) for at least 3 months duration. The nurses shared stories regarding their experiences during deployment. Ethical issues occurred regarding respect for persons, justice, and beneficence. Many struggled to find internal resolution regarding care of detainees, cultural differences, end of life decision making, pain management, and care of civilian casualties. This presentation would discuss the predominant issues they faced during the deployment experiences. Conclusions: The study provided a description of the ethical issues military nurses encounter during wartime and will contribute to an ethical issues toolkit and development of a military ethical issues instrument. By better understanding how nurses defined, assessed, and managed the ethical situations they encountered, we can better prepare our deploying nurses for future conflicts

    G. De Sensi Sestito (a c.), Gli ebrei nella Calabria medievale

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