456 research outputs found
Solvability of the G_2 Integrable System
It is shown that the 3-body trigonometric G_2 integrable system is
exactly-solvable. If the configuration space is parametrized by certain
symmetric functions of the coordinates then, for arbitrary values of the
coupling constants, the Hamiltonian can be expressed as a quadratic polynomial
in the generators of some Lie algebra of differential operators in a
finite-dimensional representation. Four infinite families of eigenstates,
represented by polynomials, and the corresponding eigenvalues are described
explicitly.Comment: 18 pages, LaTeX, some minor typos correcte
Human anatomy nomenclature rules for the computer age
Information systems are increasing in importance in biomedical sciences and medical practice. The nomenclature rules of human anatomy were reviewed for adequacy with respect to modern needs. New rules are proposed here to ensure that each Latin term is uniquely associated with an anatomical entity, as short and simple as possible, and machine-interpretable. Observance of these recommendations will also benefit students and translators of the Latin terms into other languages
Convenient Constructs: How Chief Police Officers in England and Wales Understand the Right of Police to Exercise Power
Chief police officers are an elite group whose beliefs and actions may contribute to reproducing, developing or transforming police legitimacy. This research answers the question, ‘how do chief police officers in England and Wales understand the right of police to exercise power?’ The chief officers who participated in this research all invoked duties to protect the public (particularly the most vulnerable), policing by consent and explanations based in law and associated checks and balances. However, the significant and original academic contribution that this thesis makes is the finding that these legitimating constructs are confused, conflicted and, above all, convenient. Confusion was evident in vague accounts of vulnerability and hazy notions of consensual policing. When discussing law, operational independence was described as ‘grey’, which may have implications for the ability or will of chief officers to resist the imposition of priorities that infringe on civil liberties. Conflict was found between a rhetoric of consent and the practice of coercion. Narratives of vulnerability and policing by consent also clashed, as hunting threats to the vulnerable may not compensate for failures to tackle issues that are more immediate for many people. Participants’ claims that law and associated checks and balances are important in ensuring police power is used properly sat uncomfortably with their distaste for the process of scrutiny. These tensions and conflicts contributed to participants’ perceptions that they were pressured and that their positions were precarious. Narratives of complexity and change can be convenient in helping chief officers assert a privileged position when making decisions about the use of power. The vagueness of vulnerability and hazy conceptualisations of consent may also be convenient legitimating narratives, which cloak coercion and control. A leitmotif was a convenient construction of a broadly consensual ‘now’ contrasted with a more coercive ‘then’, which could camouflage contemporary concerns about police legitimacy. Together these stories conveniently help chief officers, and potentially politicians, to set priorities for the use of police power that are difficult for citizens to challenge, particularly when ‘folk devil[s]’ (Wells, 2016: 278) and policing myths (Emsley, 2014) are called on in attempts to legitimate such agendas
Confiabilidade da fotogrametria em relação a goniometria para avaliação postural de membros inferiores
Estimated Risk of HIV Acquisition and Practice for Preventing Occupational Exposure: A Study of Healthcare Workers at Tumbi and Dodoma Hospitals, Tanzania.
Health care workers (HCWs) are at risk of acquiring human immuno-deficiency virus (HIV) and other infections via exposure to infectious patients' blood and body fluids. The main objective of this study was to estimate the risk of HIV transmission and examine the practices for preventing occupational exposures among HCWs at Tumbi and Dodoma Hospitals in Tanzania. This study was carried out in two hospitals, namely, Tumbi in Coast Region and Dodoma in Dodoma Region. In each facility, hospital records of occupational exposure to HIV infection and its management were reviewed. In addition, practices to prevent occupational exposure to HIV infection among HCWs were observed. The estimated risk of HIV transmission due to needle stick injuries was calculated to be 7 cases per 1,000,000 HCWs-years. Over half of the observed hospital departments did not have guidelines for prevention and management of occupational exposure to HIV infections and lacked well displayed health and safety instructions. Approximately, one-fifth of the hospital departments visited failed to adhere to the instructions pertaining to correlation between waste materials and the corresponding colour coded bag/container/safety box. Seventy four percent of the hospital departments observed did not display instructions for handling infectious materials. Inappropriate use of gloves, lack of health and safety instructions, and lack of use of eye protective glasses were more frequently observed at Dodoma Hospital than at Tumbi Hospital. The poor quality of the hospital records at the two hospitals hampered our effort to characterise the risk of HIV infection acquisition by HCWs. Greater data completeness in hospital records is needed to allow the determination of the actual risk of HIV transmission for HCWs. To further reduce the risk of HIV infection due to occupational exposure, hospitals should be equipped with sufficient personal protective equipment (PPE) and HCWs should be reminded of the importance of adhering to universal precautions
Barriers to kidney transplants in Indonesia : a literature review
Background: People living with chronic kidney disease will require renal dialysis or a kidney transplant to maintain life. Although Indonesia has a developing healthcare industry, Indonesia\u27s kidney transplant rates are lower than comparable nations.Purpose: To explore the healthcare literature to identify barriers to kidney transplants in particular in relation to Indonesia.Methods: Healthcare databases were searched (CINAHL, Medline, EBSCOhostEJS, Blackwell Synergy, Web of Science, PubMed, Google Scholar and Proquest 5000) using the search terms: transplant, kidney disease, renal, dialysis, haemodialysis, Indonesia and nursing. The search was limited to English and Indonesian language data sources from 1997 to 2007. Reference lists of salient academic articles were hand searched.Results: The results of our search identified six articles that met our criteria. Costs are the major barrier to kidney transplant in Indonesia, followed by cultural beliefs, perception of the law, lack of information and lack of infrastructure. In addition, kidney disease prevention strategies are required.Conclusions: There are many complex socio-economic, geographical, legal, cultural and religious factors that contribute to low kidney transplant rates in Indonesia. Although an increase in transplantation rates will require strategies from various agencies, healthcare professionals, including nurses, can play a role in overcoming some barriers. Community education programmes, improving their own education levels and by increasing empowerment in nursing we may contribute to improved kidney transplant rates in Indonesia.<br /
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