1,931 research outputs found

    Was the Higgs boson discovered?

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    The standard model has postulated the existence of a scalar boson, named the Higgs boson. This boson plays a central role in a symmetry breaking scheme called the Brout-Englert-Higgs mechanism (or the Brout-Englert-Higgs-Guralnik-Hagen-Kibble mechanism, for completeness) making the standard model realistic. However, until recently at least, the 50-year-long-sought Higgs boson had remained the only particle in the standard model not yet discovered experimentally. It is the last but very important missing ingredient of the standard model. Therefore, searching for the Higgs boson is a crucial task and an important mission of particle physics. For this purpose, many theoretical works have been done and different experiments have been organized. It may be said in particular that to search for the Higgs boson has been one of the ultimate goals of building and running the LHC, the world's largest and most powerful particle accelerator, at CERN, which is a great combination of science and technology. Recently, in the summer of 2012, ATLAS and CMS, the two biggest and general-purpose LHC collaborations, announced the discovery of a new boson with a mass around 125 GeV. Since then, for over two years, ATLAS, CMS and other collaborations have carried out intensive investigations on the newly discovered boson to confirm that this new boson is really the Higgs boson (of the standard model). It is a triumph of science and technology and international cooperation. Here, we will review the main results of these investigations following a brief introduction to the Higgs boson within the theoretical framework of the standard model and Brout-Englert-Higgs mechanism as well as a theoretical and experimental background of its search. This paper may attract interest of not only particle physicists but also a broader audience.Comment: LateX, 23 pages, 01 table, 9 figures. To appear in Commun. Phys. Version 2: Minor changes, two references adde

    The Relationship Between Nutritional Status and the Quality of Life for Gastric Cancer Patients

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    Cancer patients often suffer from malnutrition and low quality of life, especially gastric cancer patients. This is an important factor in the decision to treat cancer. Researchers are interested in the relationship of nutritional status between quality of life through body mass index to the main aspects of quality of life: core healthy days, physical, mental, or emotional problems; physical, functional, cognitive, and social limitations; and side effects such as fatigue; nausea, pain, anorexia, constipation, and diarrhea. The relationship between quality of life and weight loss indicates the importance of nutrition management in cancer patients. Cancer patients have special physical and mental health needs because they face risks associated with late side effects as well as recurrence of the disease. Studies have shown a scientific diet helps prevent some complications of stomach cancer patients. Researchers are also exploring some diets and exercise habits of patients after cancer treatment that could help prevent the disease from recurring and reduce complications to improve the quality of life of the patient. Education programs could help cancer patients learn how to change their lifestyle to stay healthy. Programs that include diet, exercise, and stress management would be more likely to help cancer patients adapt to these changes. Maintaining life for cancer patients should rely on the nutrients in food. The most important problem of cancer atients is the lack of nutrients; improving nutrition for patients would be an important method in treating and fighting cancer. Combining the right foods for cancer patients could improve the body\u27s resistance and have an effect on the treatment and quality of life for patients with stomach cancer. Using a cross-sectional correlation study, the researcher investigated 38 gastric cancer patients with chemotherapy at an oncology hospital. Baseline anthropometrics included changes over time, body mass index (BMI), and Health Related Quality of Life. The instrument was a researcher administered questionnaire and a medical history form was also completed. The results indicated a correlation between nutritional status parameters and quality of life. The results shown in the analysis of nutritional status showed health- related quality of life was significantly correlated with perception of healthy days: activity limitation and healthy days symptom scale with r2 value of 0.239 and Durbin- Watson value of 2

    Survey of domestic and work life experience and reproductive health of women workers of selected industrial compounds in Ha Noi

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    The Population Council Viet Nam and local stakeholders undertook a collaborative project in Ha Noi entitled “Improving the health care response to gender-based violence.” The study’s objectives were: 1) to assess the knowledge and experience of female workers about gender-based violence; 2) to assess knowledge and practice of women workers on reproductive health focusing on abortion; and 3) to make recommendation for the Ha Noi Health Service to improve the women workers’ knowledge on gender-based violence, choice of contraceptive method, reproductive health care, and abortion. The women factory workers, who have higher levels of education than their peers in the national sample, have the strong potential to be agents-of-change in spreading the message regarding the effectiveness of modern family planning methods through examples from their real lives. However, it is essential to supply them with complete information about such methods as well as more in-depth information about specific clauses in the Law of Domestic Violence regarding protection and prevention and provide them information on where to access treatment

    Customers Accounting Usage and Organizational Performance: The Mediating Role of Customers Accounting

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    Purpose: The study aims to examine the mediating role of customer accounting information used in the relationship between the intensity of competition, marketing orientation, customer accounting, and operational performance in the case of Vietnamese enterprises.   Theoretical framework:   The research model is inherited from Guilding and McManus (2002), Gupta and Lehmann (2003), and Pfeifer et al. (2005) about the usefulness of customer accounting information to business operational performance.   Design/methodology/approach: The data were collected by using a questionnaire sent to Vietnamese accountants and business managers by email. 324 valid questionnaires were analyzed in this study. The data were analyzed using the structural equation model (SEM).   Findings: The results have shown a positive impact between market orientation and the competitive intensity of enterprises on the use of customer accounting information. The research also indicates that customer accounting information and the perceived benefits of using customer accounting information can support the development of business strategies to help enterprises achieve outstanding efficiency.   Research, Practical & Social Implications: The research evaluated the impact of the use of customer accounting on the performance of companies with the intermediary role of customer accountants with the intensity of competition, market orientation, and the performance of enterprises. Based on the results, some solutions are proposed to apply customer accounting in Vietnamese enterprises to improve operational performance.   Originality/value: The originality of this research is the role model of customer accounting information used as a mediator of the influence of customer accounting information usage on organizational performance. These findings can be helpful for Vietnamese enterprises to use customer accounting information to improve their business performance
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