Method for the determination of the three-dimensional aerodynamic field of a rotor-stator combination to compressible flow

Using the lifting surface theory and the acceleration potential method for the flow field of an axial turbocompressor stage, a recursive and a direct method are presented that make use of the eigenfunction solutions of the isolated rotor and stator to solve for the rotor-stator interaction problem. The net pressure distribution on the rotor and stator blades is represented by modified Birnbaum series, whose coefficients are determined using a matrix procedure and satisfying the boundary conditions on the surface of the blades. The relation between the matrix operators of the recursive and the direct methods is also shown. Expressions have been given for the blade circulation, the axial and tangential forces on the blade, the rotor power required, and the induced upwash velocity of the stage

Cumplimiento del marco internacional en materia de género en operaciones marítimas de intercepción y salvamento ligadas a la migración mixta: el caso de España en un contexto Europeo

Women make up around 10% of those arriving irregularly to Spain through mixed migration by sea. For its part, Spain has carried out an extensive overhaul of regulations relating to gender. This national framework has not only been driven by social changes but is largely due to international obligations and commitments arising from the Convention on the elimination of all forms of discrimination against women, the Council of Europe Convention on preventing and combating violence against women and domestic violence, the UN Women, Peace and Security Agenda, and the 2030 Agenda for Sustainable Development.Taking these factors as a basis, this article focuses on an analysis of the extent to which Spain is complying with these international obligations and commitments on gender in cases of rescue or interception operations at sea involving mixed migration in a European context. Information from current international and national monitoring and follow-up mechanisms is used for this evaluation. Following this, problems and obstacles hampering compliance are identified, and potential changes and improvements are proposed.Les femmes représentant environ 10% des personnes qu’arrivent en Espagne de manière irrégulier dans le cadre de la migration mixte par voie maritime. Par ailleurs, l’Espagne a réalisé un développement normatif intense en matière de genre. Ce cadre normatif national n’est pas seulement le résultat de changements sociaux, mais principalement des obligations et des engagements internationales découlant de la Convention sur l’élimination de toutes les formes de discrimination à l’égard des femmes, la Convention du Conseil de l’Europe sur la prévention et la lutte contre le violence à l’égard des femmes et la violence domestique (« Convention d’Istanbul »), et les agendas des Nations Unies « Femmes, paix et sécurité » et « L’ Agenda 2030 et les objectifs de développement durable ».Sur la base de ces idées, ce travail porte sur l’analyse du respect pour l’Espagne de ces obligations et engagement internationaux en matière de genre dans le cas d’opérations d’interception et/ou de sauvetage maritimes liées à la migration mixte dans le contexte européen actuel. Pour ce faire, les informations issues des mécanismes de supervision et de suivi existant au niveau international et national sont prises comme référence. Ensuite, les problèmes et les difficultés pour atteindre ladite conformité sont identifiés, en proposant des voies possibles de changement et d’amélioration.Las mujeres representan el 10% aproximadamente de las personas que llegan a España irregularmente en el marco de la migración mixta por mar. A su vez, España ha llevado a cabo un intenso desarrollo normativo en materia de género. Este marco normativo nacional no sólo es el resultado de cambios sociales, sino principalmente de las obligaciones y compromisos internacionales derivados del Convenio para la eliminación de todas las formas de discriminación de la mujer, del Convenio del Consejo de Europa sobre prevención y lucha contra la violencia contra la mujer y la violencia doméstica, y de las agendas de Naciones Unidas, “Mujeres, paz y seguridad” y la “Agenda 2030 para el desarrollo sostenible”.Partiendo de estos presupuestos, el trabajo se centra en el análisis del cumplimiento por España de tales obligaciones y compromisos internacionales en materia de género en el caso de las operaciones marítimas de intercepción y/o rescate ligadas a la migración mixta en el presente contexto europeo. Para ello, se toma como referencia la información que resulta de los mecanismos de supervisión y seguimiento existentes en el plano internacional y nacional. A continuación, se identifican los problemas y dificultades para dicho cumplimiento, proponiendo posibles vías de cambio y mejora

Fred Broadbent v. Industrial Commission of Utah : Brief of Appellee

Brief of Defendants/Respondent

Community of Hope: A comprehensive suicide prevention intervention at MIT

Suicide is the second leading cause of death for most age groups in the United States. The current rate of suicide among college students is 7.5 per 100,000 with the rate remaining fairly steady over the past 30 years. While the rate is lower on college campuses, compared to the general population ages 18-24, the issue is still much larger on a college campus due to suicide bereavement or the number of people affected and to what degree they were impacted. As of 2015, MIT (Massachusetts Institute of Technology) had the highest suicide of all reporting colleges. The primary objective of this intervention is to increase knowledge of signs of suicidal ideation, increase perceived ability to intervene, and increase self-efficacy. This will be accomplished through the implementation of two evidence-based programs, QPR Gatekeeper Training and Kognito At-Risk for College Students. This intervention will allow us to evaluate the long-term effects of just the Kognito training, and the benefits of students completing both trainings. We will be utilizing the Gatekeeper Behavioral Scale to measure outcomes and will also collect student demographic data to analyze any relation between outcomes and demographics. We hope this intervention will provide a model for other college campuses that are yearning to do more in the field of suicide prevention

Personal Recovery in People With a Psychotic Disorder:A Systematic Review and Meta-Analysis of Associated Factors

Background: Personal recovery (PR) is a subjective, multidimensional concept, and quantitative research using PR as an outcome is rapidly increasing. This systematic review is intended to support the design of interventions that contribute to PR in psychotic disorders, by providing an overview of associated factors and their weighted importance to PR: clinical factors, social factors, and socio-demographic characteristics are included, and factors related to the concept of PR (organized into CHIME dimensions). Methods: A systematic literature search was conducted from inception to March 2020. Quantitative studies that had used a validated questionnaire assessing the concept of PR were included. Mean effect sizes for the relationship between PR-scale total scores and related factors were calculated using meta-analyses. Sources of heterogeneity were examined using meta-regression tests. Results: Forty-six studies, that used (a total of) eight PR measures, showed that in clinical factors, affective symptoms had a medium negative association with PR-scale total scores (r = −0.44, 95%CI −0.50 to −0.37), while positive, negative and general symptoms had small negative correlations. No association was found with neuro-cognition. Social factors (support, work and housing, and functioning) showed small positive correlations. Gender and age differences had barely been researched. Large associations were found for PR-scale total scores with the CHIME dimensions hope (r = 0.56, 95%CI 0.48–0.63), meaning in life (r = 0.48, 95%CI 0.38–0.58) and empowerment (r = 0.53, 95%CI 0.42–0.63); while medium associations were found with connectedness (r = 0.34, 95%CI 0.43–0.65) and identity (r = 0.43, 95%CI 0.35–0.50). Levels of heterogeneity were high, sources included: the variety of PR measures, variations in sample characteristics, publication bias, variations in outcome measures, and cultural differences. Discussion: Most interventions in mental healthcare aim to reduce symptoms and improve functioning. With regard to stimulating PR, these interventions may benefit from also focusing on enhancing hope, empowerment, and meaning in life. The strength of these findings is limited by the challenges of comparing separate CHIME dimensions with questionnaires assessing the concept of PR, and by the high levels of heterogeneity observed. Future research should focus on the interaction between elements of PR and clinical and social factors over time

Campus Gatekeeper Trainings: An Analysis of Question, Persuade, Refer (QPR) and SafeTALK

Suicide prevention gatekeeper trainings seek to equip learners with knowledge about suicide, skills to recognize suicide risk and intervene, and awareness of referral resources. Although these trainings are widely used, research is limited on their utility and impact on increasing intent to intervene in a suicide crisis. The current study aimed to evaluate two gatekeeper trainings, SafeTALK and Question, Persuade, Refer (QPR), on a college campus using a pre-test/post-test design to examine this gap in the literature and provide evidence to help shape gatekeeper trainings in the future. Because the theory of planned behavior has been demonstrated to be an effective framework for understanding an individual’s intention to intervene with someone at risk of suicide (Aldrich, 2015), the current study has been guided by this framework. Positive increases in attitudes about intervening, subjective norms, perceived behavioral control (PBC), and intention to intervene were found across both trainings. All variables were found to significantly predict intention to intervene in the overall model; however, only change in PBC predicted change in intention to intervene when controlling for other predictors. Training outcomes did not differ by type of training. An exploratory effect was found suggesting that positive attitudes about intervening increased only for participants who knew someone who died by, or attempted, suicide. Future research is needed to better understand gatekeeper training outcomes in larger, more diverse samples, settings (e.g., workplace, school, etc.), types of trainings, and related variables (e.g., exposure to suicide, occupation, gender, etc.)

Factores de riesgo asociados a multidrogorresistencia en pacientes con tuberculosis sin infección por VIH internados en el Hospital Nacional Dos de mayo, Lima-Perú

La tuberculosis multidrogorresistente es un problema de salud pública mundial, existiendo escasa investigación sobre sus factores de riesgo en nuestro medio. Problema: ¿Cuáles son los factores de riesgo asociados a multidrogorresistencia en pacientes con tuberculosis sin infección por VIH internados en el Hospital Nacional Dos de Mayo Lima-Perú? Objetivos: Determinar los factores asociados a multidrogorresistencia, describir sus características clínico-epidemiológicas más importantes y establecer la magnitud del riesgo de dichos factores.The multidrug-resistant tuberculosis is a world problem of public health, there are poorly investigation about risk factors in our place. Problem: What are the risk factors of multidrug-resistance in inpatients with tuberculosis without infection by HIV of the Dos de Mayo National hospital of Lima-Perú? Objetives: To determinate the risk factors to multidrug-resistance, to describe most relevant clinical and epidemyological characteristics, and stablish the magnitude of those factors.Tesis de segunda especialida

Impact reactivity of materials at very high oxygen pressure

The requirements for impact testing of materials in an oxygen atmosphere at pressures from 82.7 MPa (12,000 psi) to 172 MPa (25,000 psi) were evaluated. The impact tester system was evaluated for potential pressure increases from 69 MPa (10,000 psi) to 82.7 MPa (12,000 psi). The low pressure oxygen and nitrogen systems, the impact tower, the impact test cell, and the high pressure oxygen system were evaluated individually. Although the structural integrity of the impact test cell and the compressor were sufficient for operation at 82.7 MPa (12,000 psi), studies revealed possible material incompatibility at that pressure and above. It was recommended that if a component should be replaced for 82.7 MPa (12,000 psi) operation the replacement should meet the final objectives of 172 MPa (25,000 psi). Recommended changes in the system include; use of Monel 400 for pressures above 82.7 MPa (12,000 psi), use of bellows to replace the seal in the impact tester, use of a sapphire window attached to a fiber optic for event sensing, and use of a three diaphragm compressor

STUDI PERSIMPANGAN BUNDARAN SUCI KABUPATEN GARUT

Persimpangan Bundaran Suci Kabupaten Garut merupakan dua persimpangan yangberdekatan dengan kondisi yang berpotensi terjadi kemacetan dan kecelakaan. Hal ini disebabkanruas jalan mayor merupakan jalan menuju pusat perekonomian dan permukiman. Dari hasilanalisis dapat disimpulkan bahwa di Bundaran Suci Kabupaten Garut memiliki nilai DerajatKejenuhan (DS) = 0,72, Tundaan (DT) = 12,06   det/jam serta menghasilkan peluang antrian (QP)= 9% - 31%. Nilai derajat kejenuhan sesuai dengan nilai yang disarankan oleh MKJI 1997. Hal inidapat dilihat dari nilai derajat kejenuhan pada Bundaran Suci Kabupaten Garut yaitu DS = 0,75.Setelah dilakukan rekayasa dengan menggunakan manajemen lalulintas pada lokasi ini maka,derajat kejenuhannya menurun dan memenuhi kriteri. Dengan melakukan pelebaran setiappendekat bagian jalinan dan lebar jalinan pada bagian jalinan Bundaran Suci KabupatenGarut,maka di peroleh nilai Derajat Kejenuhan Bundaran sebesar 0,72, sehingga sudah sesuaidengan persyaratan MKJI yaitu DS ≤ 0,75

Analog Computer Simulation of the Runoff Characteristics of an Urban Watershed

In the syntheses of hydrograph characteristics of small urban watersheds, the distribution of water among the various phases of the runoff process is attempted by the concept of equivalent rural watershed. The urban parameters considered in the study are percentage impervious cover and characteristic impervious length factor. A mathematical model is developed for the equivalent rural watershed with precipitation as input. The hydrograph of outflow is obtained by chronologically deducting the losses due to interception, infiltration, and depression storages from precipitation and then routing through the watershed storage. This mathematical procedure is programmed on an analog computer and is tested with data from the Waller Creek watershed, at Austin, Texas. In the verification process, watershed coefficients representing interception, infiltration, and depression storage are established by trial and error such that the simulated and observed hydrographs are nearly identical with a high statistical correlation. Sensitivity studies indicate the relative influence of the watershed coefficients on the runoff process. The watershed coefficients determined by model verification for each year of study are related to corresponding urban parameters