19,760 research outputs found

    Search for heavy Majorana or Dirac neutrinos and right-handed WW gauge bosons in final states with charged leptons and jets in pppp collisions at s=13\sqrt{s}=13 TeV with the ATLAS detector

    Full text link
    A search for heavy right-handed Majorana or Dirac neutrinos NRN_{\mathrm{R}} and heavy right-handed gauge bosons WRW_{\mathrm{R}} is performed in events with energetic electrons or muons, with the same or opposite electric charge, and energetic jets. The search is carried out separately for topologies of clearly separated final-state products (``resolved'' channel) and topologies with boosted final states with hadronic products partially overlapping and reconstructed as a large-radius jet (``boosted'' channel). The events are selected from pppp collision data at the LHC with an integrated luminosity of 139 fb‚ąí1^{-1} collected by the ATLAS detector at s\sqrt{s} = 13 TeV. No significant deviations from the Standard Model predictions are observed. The results are interpreted within the theoretical framework of a left-right symmetric model, and lower limits are set on masses in the heavy right-handed WRW_{\mathrm{R}} boson and NRN_{\mathrm{R}} plane. The excluded region extends to about m(WR)=6.4m(W_{\mathrm{R}}) = 6.4 TeV for both Majorana and Dirac NRN_{\mathrm{R}} neutrinos at m(NR)<1m(N_{\mathrm{R}})<1 TeV. NRN_{\mathrm{R}} with masses of less than 3.5 (3.6) TeV are excluded in the electron (muon) channel at m(WR)=4.8m(W_{\mathrm{R}})=4.8 TeV for the Majorana neutrinos, and limits of m(NR)m(N_{\mathrm{R}}) up to 3.6 TeV for m(WR)=5.2m(W_{\mathrm{R}}) = 5.2 (5.05.0) TeV in the electron (muon) channel are set for the Dirac neutrinos.Comment: 48 pages in total, author list starting page 31, 9 figures, 5 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2019-39

    Total Quality Management as a Philosophy to Improve the Performance of the Academic Organization

    Get PDF
    Purpose: The purpose of this study is to examine the role of total quality management as a philosophy for improvement in the academic organization, as it represents a necessary trend in developing the activities of many organizations in the light of globalization and the challenges that these organizations face, in order to bring about fundamental developments, and the use of that philosophy as an effective means towards customer satisfaction and meeting his requirements.   Theoretical framework: Total quality management is regarded as one of the contemporary concepts that concentrates on a set of administrative principles; if it has been applied in organization, it will succeed in achieving quality.   Design/Methodology/Approach: To achieve the objectives of the study, a questionnaire of 60-item has been used. The sample comprised 65 academic staff members from various parts of the organization. According to the purpose of the study, two main hypotheses were formulated. A set of statistical method  of spss vr.24.  has been used.     Findings: It is concluded that supporting and adopting the total quality will be fruitful as a successful business philosophy for the continuity by creating appropriate requirements and conditions.   Research/Practical/Social Implications: Establishing the desire towards change by following the best by individuals and adopting stimulus programs that reinforce their ability to realize cognitive new ness.   Originality/Value:  The value of the study is that the organization's interest in the social aspect and its adoption confirms the organization's adaptation to the requirements of society

    The Role of Distinct Core Capabilities in Achieving Organizational Brilliance / An Exploratory Study of the Opinions of a Sample of Managers Working in the Iraqi General Company for Cement / Kufa Cement Factory

    Get PDF
    Purpose: The purpose of this study is to achieve several goals by defining the correlation and influence of distinct core capabilities (through its dimensions (organizational resources, human resources, capabilities)) in achieving organizational brilliance (through its dimensions of (brilliance in leadership, brilliance in service and innovation, brilliance in knowledge).   Theoretical framework: The research dealt with the theoretical aspect of the concepts related to the variable of distinct fundamental capabilities and organizational brilliance as they are modern and contemporary concepts and have an administrative nature on business organizations that seek excellence and leadership in their field of business, where the Kufa Cement Factory was chosen as an applied field to show the extent of applying the essential capabilities that have positive effects in Achieving organizational brilliance in the laboratory.   Design/methodology/approach: The questionnaire was used as a tool for collecting the necessary data and information, through an intentional sample of (124) represented by senior administrations, heads of departments, directors of divisions and units in the Kufa cement factory, and the descriptive analytical method was used mainly in Presentation, analysis and interpretation of research information.    Findings: The findings: Thebased on a set of statistical methods such as confirmatory factor analysis and structural equation modeling method to measure the effect relationship, arithmetic mean, standard deviation, coefficient of variation, modified analysis and Pearson correlation through statistical programs (SPSS V.24; Amos V.23).   Research, Practical &amp; Social implications: The Among the most prominent findings of the research is the interest of the Kufa Cement Factory management in adopting distinct core capabilities and rationalizing their use in terms of attention to organizational resources, improving the internal work environment, and directing employees to cooperate and follow helpful behaviors and work in a team spirit in order to ensure the improvement of manufacturing, achieving the necessary goals and strengthening the basic capabilities of the plant from It would improve the level of organizational brilliance in the future study.   Originality/value: The value of the study stems from its handling of an important sector, which is the industrial sector, as this sector is considered the most important and effective in the process of economic development

    Delegation of Authority to the Performance of the Medical Staff and Its Relationship to Improving the Quality of Health Care in Palestine

    Get PDF
    The study aimed to identify the delegation of authority for the performance of the medical staff and its relationship to improving the quality of health care in Al-Shifa Medical Complex in the southern Palestinian governorates. Administrators, and technicians) with a total of 2150 employees, and the questionnaire was distributed to a stratified random sample of 330 employees, and 302 questionnaires were retrieved, with a rate of 91.5%. One of the most important results of the study was the existence of a statistically significant relationship between delegation of authority and the quality of health care. One of the most important recommendations of the study was to strengthen the direction of senior management towards excellence in patient service, because the patient represents a fundamental focus in health services

    Differential responses in some quinoa genotypes of a consortium of beneficial endophytic bacteria against bacterial leaf spot disease

    Get PDF
    Many effective plant-microbe interactions lead to biological changes that can stimulate plant growth and production. This study evaluated the effect of the interaction between quinoa (Chenopodium quinoa Willd.) and endophytic bacterial strains on differential responses under biotic stress. Four strains of endophytic bacteria were used to inoculate three quinoa genotypes. Endophytic bacteria, isolated from the endosphere of healthy genotypes of quinoa plants, were used to evaluate their biocontrol activity against Pseudomonas syringae on quinoa plants, which causes leaf spot disease, depending on some different parameters. Quinoa genotype plants were treated with four treatments: pathogenic bacteria only (T1), internal bacteria only (T2), pathogenic bacteria + endogenous bacteria (T3), and untreated as the control (T4). The results indicated that there was a significant difference between chlorophyll content index of infected plants without bioagent (untreated) compared to plants bio-inoculated with endophytic bacteria. The highest mean disease incidence was on the plants without bacterial inoculum (90, 80, and 100%) for quinoa genotypes G1, G2, and G3, respectively. The results showed that there were significant differences in the weight of grains/plant, as the value ranged from 8.1 to 13.3‚ÄČg when treated with pathogens (T1) compared to the treatment with pathogens and endogenous bacteria (T3), which ranged from 11.7 to 18.6‚ÄČg/plant. Decreases in total aromatic amino acids appeared due to the pathogen infection, by 6.3, 22.8, and 24.1% (compared to the control) in G1, G2, and G3, respectively. On the other hand, genotype G3 showed the highest response in the levels of total aromatic and total neutral amino acids. The endophytic strains promoted quinoa seedling growth mainly by improving nutrient efficiency. This improvement could not be explained by their ability to induce the production of amino acids, showing that complex interactions might be associated with enhancement of quinoa seedling performance by endophytic bacteria. The endophytic bacterial strains were able to reduce the severity of bacterial leaf spot disease by 30, 40, and 50% in quinoa genotypes G1, G2, and G3, respectively, recording significant differences compared to the negative control. The results indicated that, G1 genotype was superior in different performance indicators (pathogen tolerance index, yield injury %, superiority measure and relative performance) for grain weight/plant under pathogen infection condition when treated with endophyte bacteria. Based on this study, these bacterial strains can be used as a biotechnology tool in quinoa seedling production and biocontrol to diminish the severity of bacterial leaf spot disease

    Utilization of Different Concentration Sugarcane Molasses to the Quality of Goat Feces-Chicken Excreta-Coconut Husk Organic Liquid Fertilizer

    Get PDF
    Indonesia is an agricultural country that certainly has the potential for agricultural waste and by-products. Some of those in Indonesia are livestock manure, coconut husk, and sugarcane molasses. Utilization of this waste is limited, which is causing various environmental problems such as environmental pollution. The study is aimed to determine the quality of organic liquid fertilizer made by raw material from goat feces-chicken excreta-coconut husk with various sugarcane molasses concentrations (P0= 0%; P1= 5%; P3= 15%; P4= 20%; P5= 25%). The fermentation was carried out anaerobically for 21 days. The parameters of temperature, pH, organoleptic (color and odor), levels of C-organic, nitrogen (N) total, phosphorus (P) total, potassium (K) total, and biological tests were observed. Biological tests were conducted in the growth of mung bean (Vigna radiata) and spinach (Amaranthus tricolor). Data were analyzed using one-way ANOVA. Variations in the addition of molasses sugarcane did not affect the liquid fertilizer's temperature and pH during fermentation. However, the treatments had positive effect on organoleptic test, C-organic, N total, P total, K total, and biological tests. The addition of 15% sugarcane molasses (P3) showed a dominating performance toward most of the parameters tested. The P3 treatment produced liquid fertilizer with a pleasant smell, and the contents of C-organic, total N, total P, and total K were 2.12%, 0.25%, 0.13%, and 0.13%,  respectively. and produce spinach as a biological test with plant height, number of leaves, leaf width, stem diameter, and root length were 21.82 cm, 6.66 sheets, 3.59 cm, 4.09 mm, and 14.67 cm, respectively

    Ruralidad e interacciones rural-urbanas en regiones de planificación y territorios rurales: aportes para su caracterización a partir de una reconceptualización y remedición de lo rural en Costa Rica

    Get PDF
    En este documento se propone y explora la utilidad de una categorizaci√≥n y clasificaci√≥n no dicot√≥mica de los distritos y cantones del pa√≠s por sus grados y tipos de ruralidad. Se parte de una definici√≥n y medici√≥n alternativas de lo rural en la Costa Rica actual, reconociendo su diversidad y la existencia de un gradiente rural-urbano diferenciado por escalas. El documento constituye un insumo para el dise√Īo e implementaci√≥n de pol√≠ticas diferenciadas e inversiones p√ļblicas enfocadas en los requerimientos y potencialidades de las regiones o territorios. Se presentan datos y an√°lisis estad√≠sticos, mapas y an√°lisis espaciales, interpretaciones y planteamientos propositivos para su consideraci√≥n por parte de la institucionalidad p√ļblica e instancias p√ļblico-privadas u organizaciones de gesti√≥n territorial.Resumen .-- Introducci√≥n .-- I. Alcances y l√≠mites de la definici√≥n, medici√≥n y caracterizaci√≥n de la ruralidad costarricense .-- II. Herramientas conceptuales y metodol√≥gicas para un abordaje multiescalar din√°mico de la ruralidad .-- III. Ruralidad e interacciones rural-urbanas en regiones de planificaci√≥n y territorios rurales .-- IV. Elementos para una caracterizaci√≥n din√°mica multiescalar .-- V. Conclusiones propositivas y opciones por considerar

    La producción de imágenes desde la historia de las artes visuales : Pedagogía visual en el Bachillerato de Bellas Artes. Perspectivas teóricas y prácticas académicas

    Get PDF
    El presente trabajo tiene como objetivo realizar una aproximaci√≥n a los problemas te√≥ricos y pedag√≥gicos que funcionaron como base para la planificaci√≥n del proyecto de investigaci√≥n denominado ‚ÄúLa producci√≥n de im√°genes desde la historia de las artes visuales. Pedagog√≠a visual en el Bachillerato de Bellas Artes. Perspectivas te√≥ricas y pr√°cticas acad√©micas.‚ÄĚ El mismo se inscribe y desarrolla en el marco de los Proyectos de Producci√≥n, Extensi√≥n e Investigaci√≥n 2022 de la Secretar√≠a de Extensi√≥n e Investigaci√≥n del Bachillerato de Bellas Artes Francisco A. De Santo UNLP. Esta propuesta de investigaci√≥n surge a partir de algunas problematizaciones te√≥ricas y pedag√≥gicas que los integrantes de este equipo experimentamos en torno a nuestra pr√°ctica docente en la materia Historia de las artes visuales para 2do. a√Īo del Bachillerato de Bellas Artes (ambxs nos desempe√Īamos como docentes en dicha asignatura). En conversaciones y debates que hemos sostenido del trabajo conjunto, observamos que en la perspectiva te√≥rica de nuestra materia sigue primando una forma canonizada, historiogr√°ficamente moderna, de ense√Īanza de historia de las artes visuales, cuya perspectiva se centra en un relato hist√≥rico lineal y de desarrollo progresivo, que privilegia el estudio de expresiones art√≠sticas europeas. A pesar de ciertas revisiones que se han realizado sobre esta cuesti√≥n, los dise√Īos de los programas contin√ļan dejando afuera ciertos contenidos que nosotrxs consideramos fundamentales, como los problemas del colonialismo cultural que, al momento de generar relatos de la historia de las artes visuales, han negado las producciones de im√°genes y objetos de los pueblos originarios latinoamericanos. Nuestro proyecto de investigaci√≥n fue ideado como una posibilidad de llevar adelante un trabajo en equipo donde nos proponemos habilitar un espacio para indagar algunas problematizaciones que nos fueron surgiendo en el transcurso de nuestras clases y consideramos necesario abordarlas para realizar una revisi√≥n de los relatos que se han construido sobre la Historia del Arte y han instalado como discurso hegem√≥nico una mirada eurocentrista y patriarcal del desarrollo de los relatos que conforman la historia de las artes visuales. En la presente ponencia expondremos las reflexiones de las cuales partimos para la planificaci√≥n del proyecto en cuesti√≥n, las apoyaturas conceptuales que nos permitieron enmarcar este desaf√≠o en ciertas perspectivas te√≥ricas y los avances alcanzados hasta el momento.Facultad de Arte

    Impact evaluation report: Egypt’s forsa graduation program

    Get PDF
    Forsa, which means ‚ÄúOpportunity‚ÄĚ in Arabic, is a new economic inclusion program of the government of the Arab Republic of Egypt. Implemented by the Ministry of Social Solidarity, the program aims to graduate beneficiaries of the national cash transfer program, the Takaful & Karama Program (TKP), to economic self-reliance by enabling them to engage in wage employment or sustainable economic enterprises. The 2021 World Bank Economic Inclusion report (Andrews et al. 2021) highlights a recent increase globally in such graduation or economic inclusion programs, which now reaches around 92 million beneficiaries from 20 million households across more than 75 countries. This rapid growth has necessitated an increasing demand for evidence on best practices in graduation program implementation. The newly designed Forsa program is based on the graduation approach, but with innovations drawing from theories of behavioral economics as well as creating a network of active youth volunteers for economic empowerment to reduce costs compared to the standard BRAC-inspired model. Forsa also expands the graduation model to include the option of wage-employment, rather than only focusing on self-employment. Evidence on the impact of job training programs linked to wage employment on both job retention and future earnings is mixed (McKenzie 2017), although most such programs do not include cash assistance. This impact evaluation of the Forsa program in Egypt is intended to contribute to the global evidence on effective graduation program design as well as provide immediate policy-relevant guidance for the Ministry of Social Solidarity. The impact evaluation will measure the degree to which Forsa is successful at increasing household consumption and will investigate which participant groups and program features demonstrate the greatest improvements in household welfare and economic activity
    • ‚Ķ