Multi-particle Correlations in Quaternionic Quantum Systems

We investigate the outcomes of measurements on correlated, few-body quantum systems described by a quaternionic quantum mechanics that allows for regions of quaternionic curvature. We find that a multi-particle interferometry experiment using a correlated system of four nonrelativistic, spin-half particles has the potential to detect the presence of quaternionic curvature. Two-body systems, however, are shown to give predictions identical to those of standard quantum mechanics when relative angles are used in the construction of the operators corresponding to measurements of particle spin components.Comment: REVTeX 3.0, 16 pages, no figures, UM-P-94/54, RCHEP-94/1

Quaternionic Electroweak Theory and CKM Matrix

We find in our quaternionic version of the electroweak theory an apparently hopeless problem: In going from complex to quaternions, the calculation of the real-valued parameters of the CKM matrix drastically changes. We aim to explain this quaternionic puzzle.Comment: 8, Revtex, Int. J. Theor. Phys. (to be published

Preparing for Shortages of Future COVID-19 Drugs: A Data-Based Model for Optimal Allocation

Drugs for the treatment of Covid-19 are currently beign tested, and those that are apporved for use are likely to be in short supply due to the global scale of the pandemic. This policy brief proposes a model for optimally allocating future Covid-19 drugs to patients to minimize deaths under conditions of resource scarcity. A linear programming model is developed that estimates the potential number of deaths that may result from Covid-19 under two scenarios: with antivirals and without antivirals. It takes into account patient risk level, the severity of their symptoms, resource availability in hospitals (i.e. hospital beds, critical care units, ventilators), observed mortality rates, and share of the Philippine population. Based on simulations, the model can make actionable recommendations on how to prioritize the allocation of the drugs

Storylines of family medicine X: Standing up for diversity, equity, and inclusion

Storylines of Family Medicine is a 12-part series of thematically linked mini-essays with accompanying illustrations that explore the many dimensions of family medicine as interpreted by individual family physicians and medical educators in the USA and elsewhere around the world. In 'X: standing up for diversity, equity and inclusion', authors address the following themes: 'The power of diversity-why inclusivity is essential to equity in healthcare', 'Medical education for whom?', 'Growing a diverse and inclusive workforce', 'Therapeutic judo-an inclusive approach to patient care', 'Global family medicine-seeing the world "upside down"', 'The inverse care law', 'Social determinants of health as a lens for care', 'Why family physicians should care about human rights' and 'Toward health equity-the opportunome'. May the essays that follow inspire readers to promote change

Multiplicity and oscillations in a model for catalyzed oxidation of carbon monoxide

We extend a model proposed for explaining multiplicity and oscillations of concentrations and temperature in catalyzed oxidation of carbon monoxide; the importance of the dimension of the system and the closure approximation applied to the results, and, especially to the oscillatory behavior, is analyzed. Kinetic phase transitions, namely, single state multiplicity, single state oscillations, and multiplicity oscillations are found, depending on the reaction heat and the temperature relaxation parameter. Also, the role played by desorption of reactants is considered. When there is no desorption, temperature oscillations take place around room temperature, but if desorption is operative, oscillations occur about a higher temperature. For the one-dimensional case a spurious kinetic phase transition is obtained when the singlet closure approximation is appliedDirección General de Investigación Científica y Técnica PB91-060

P-graph for optimising industrial symbiotic networks

Industrial symbiosis (IS) intends to reduce the consumption of resources as well as reduce the generation of waste streams through utilising by-products of other firms as raw materials of another firm. Mathematical optimisation models have been developed for identifying the optimal design of by-product exchange and utilisation to maximise the benefits of IS networks. However, these models are unable to provide alternative network structures which may have other desirable qualities such as a simpler design, but may be sub-optimal in their realisation of the objective function. Process graph (P-graph) theory is an alternative approach based on graph theory for optimising networks. It has been primarily used for the design and optimisation of process networks, but may be applied to structurally analogous systems. This work thus proposes the development of a P-graph approach for the optimization of IS networks. The methodology is demonstrated using a case study involving a combination of retrofit and grassroots design scenarios, representing existing as well as new plants within an eco-industrial park. The P-graph model is able to provide a graphical representation of the optimal IS system, as well as alternative near-optimal network designs. Copyright © 2015, AIDIC Servizi S.r.l.,

Storylines of family medicine X: standing up for diversity, equity and inclusion.

Storylines of Family Medicine is a 12-part series of thematically linked mini-essays with accompanying illustrations that explore the many dimensions of family medicine as interpreted by individual family physicians and medical educators in the USA and elsewhere around the world. In 'X: standing up for diversity, equity and inclusion', authors address the following themes: 'The power of diversity-why inclusivity is essential to equity in healthcare', 'Medical education for whom?', 'Growing a diverse and inclusive workforce', 'Therapeutic judo-an inclusive approach to patient care', 'Global family medicine-seeing the world "upside down"', 'The inverse care law', 'Social determinants of health as a lens for care', 'Why family physicians should care about human rights' and 'Toward health equity-the opportunome'. May the essays that follow inspire readers to promote change

Relationship between the academic performance of junior interns of Batch 2014 of De La Salle Health Sciences Institute and the level of satisfaction on in-patients in the charity ward of De La Salle University Medical Center, Academic Year 2013-2014

The research design that was employed in this study was the cross-sectional method. Sample population were the patients from the DLSUMC charity ward handled by the junior interns. Stratified random sampling was used as sampling technique and a self-administered questionnaire was used as tool. Data was analysed using central tendency and t-test. The study concluded that there is no sufficient evidence that there is significant relationship between the academic performance of junior interns of Batch 2014 of De La Salle Health Sciences Institute and the level of satisfaction of in-patients in the charity ward of De La Salle University Medical Center

Acute calcific tendinitis of the longus colli muscle: case report and review of the literature

Purpose Acute calcific tendinitis of the longus colli muscle (or retropharyngeal tendinitis) is an aseptic inflammatory process characterized by acute posterior neck pain, neck stiffness and dysphagia or odynophagia. Awareness of its existence is crucial in the differential diagnosis, because many other conditions, such as retropharyngeal abscess, meningitis or disc herniation, show similar clinical features. We present a case exhibiting an uncommon symptom (torticollis) and a brief literature review to emphasize the risk of misdiagnosis. Methods A 36-year-old woman presented with neck stiffness and torticollis accompanied by dysphagia and prevertebral space sensitivity on the second day. Results The diagnosis was established by computed tomography (CT), the gold standard for identifying the presence of prevertebral oedema and calcific deposition associated with retropharyngeal tendinitis. Treatment with NSAIDs and low doses of corticosteroids relieved the symptoms within 48 h. Conclusions Retropharyngeal tendinitis is an underreported entity in the literature and orthopaedists should become aware of its existence. Misdiagnosis of this important mimicker may lead to unnecessary antibiotics administration and interventions in the retropharyngeal space