Short distance singularities and automatic O(aa) improvement: the cases of the chiral condensate and the topological susceptibility

Short-distance singularities in lattice correlators can modify their Symanzik expansion by leading to additional O($a$) lattice artifacts. At the example of the chiral condensate and the topological susceptibility, we show how to account for these lattice artifacts for Wilson twisted mass fermions and show that the property of automatic O($a$) improvement is preserved at maximal twist.Comment: 12 pages, corrected proof for topological susceptibility, version published in JHE

Topological susceptibility from twisted mass fermions using spectral projectors

We discuss the computation of the topological susceptibility using the method of spectral projectors and dynamical twisted mass fermions. We present our analysis concerning the O(a)-improvement of the topological susceptibility and we show numerical results for Nf=2 and Nf=2+1+1 flavours, performing a study of the quark mass dependence in terms of leading order chiral perturbation theory.Comment: 7 pages, 3 figures; presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, German

The Philippine Health Institutions: Some Problems, Approaches and Policy Issues

This paper presents a brief analysis of the current situation of Philippine health institutions using secondary data. It locates the different types of health institutions, describes its major problems, discusses recent approaches these institutions have adopted to improve delivery of health care services and extricates policy-related issues and data gaps from available literature.health sector, hospitals, hospital care, health centers

Computation of the chiral condensate using Nf=2N_f=2 and Nf=2+1+1N_f=2+1+1 dynamical flavors of twisted mass fermions

We apply the spectral projector method, recently introduced by Giusti and L\"uscher, to compute the chiral condensate using $N_f=2$ and $N_f=2+1+1$ dynamical flavors of maximally twisted mass fermions. We present our results for several quark masses at three different lattice spacings which allows us to perform the chiral and continuum extrapolations. In addition we report our analysis on the $O(a)$ improvement of the chiral condensate for twisted mass fermions. We also study the effect of the dynamical strange and charm quarks by comparing our results for $N_f=2$ and $N_f=2+1+1$ dynamical flavors.Comment: 7 pages, 3 figures; presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, German

Testing the Witten-Veneziano Formula on the Lattice

In this proceeding contribution we report on a test of the famous Witten-Veneziano formula using lattice techniques. We perform dedicated quenched simulations and apply the spectral projector method to determine the topological susceptibility in pure Yang-Mills theory. In order to compute the relevant meson masses and the flavor singlet decay constant we employ lattice QCD with $N_f=2+1+1$ dynamical Wilson twisted mass fermions. Taking the continuum and the $SU(2)$ chiral limits we find good agreement within uncertainties for both sides of the formula.Comment: 7 pages, 4 figures, presented at the 33rd International Symposium on Lattice Field Theory, 14 -18 July 2015, Kobe International Conference Center, Kobe, Japa

Percepções sobre o erro de medicação: análise de respostas da equipe de enfermagem

El error de medicación se define como cualquier error en el proceso de prescripción, dispensación o administración de una medicación, pudiendo o no traer consecuencias serias. En este estudio, de carácter descriptivo y exploratorio, son evaluados cuatro escenarios con situaciones de práctica de enfermería. El grupo profesional fue constituido de 256 personas y fueron estudiados 89 cuestionarios. Fueron comparadas las respuestas dadas por los enfermeros con las de técnicos y auxiliares de enfermería que deberían opinar si las situaciones representaban o no un error de medicación, si había necesidad de notificación al médico o de completar un informe de ocurrencias. Los resultados demostraron una uniformidad en las respuestas, que traducían dudas si la situación era un error o no, y cuales medidas deberían ser tomadas, evidenciando la necesidad de discutir el tema dentro de las instituciones.O erro de medicação é definido como qualquer erro no processo de prescrição, dispensação ou administração de medicamentos, podendo ou não trazer conseqüências adversas. Neste estudo, de caráter descritivo e exploratório, são avaliados quatro cenários, com situações da prática de enfermagem. O grupo profissional foi constituído por 256 pessoas e foram analisados 89 questionários. Foram comparadas as respostas dadas pelos enfermeiros com as dos técnicos e auxiliares de enfermagem nas quais deveriam opinar se as situações representavam ou não um erro de medicação, se havia necessidade de notificação ao médico e do preenchimento de um relatório de ocorrências. Os resultados demonstraram uniformidade nas respostas, que traduziam dúvidas se a situação era um erro ou não e quais medidas deveriam ser tomadas, evidenciando a necessidade de discutir o tema dentro das instituições.Medication error is defined as any type of error in the prescription, transcription, dispensing and administration process which could bring about serious consequences or not. This descriptive and exploratory study assesses four scenarios showing situations from nursing practice. The study group was composed of 256 professionals and 89 questionnaires were analyzed. The answers given by the registered nurses were compared with those of licensed practical nurses and care aids. They should express their opinion if the situations represented a medication error or not, if it had to be communicated to the physician or an incident report had to be written. The two groups showed uniform answers. They expressed the same doubts to label the situation as an error and which measures should be taken, suggesting the need for further discussion on the matter within the institution