Uso de Google Classroom como repositorio de robótica práctica: PieroAcademy

En el desarrollo de practicas de laboratorio en algunas asignaturas del área de ingeniería de sistemas y automática, los alumnos recaban información relativa a equipos y componentes de diversas fuentes externas. Los resultados de su trabajo, que en muchos casos son de gran calidad, pasan al olvido una vez evaluados. Con el objetivo de poner en valor y mejorar el aprovechamiento de dichos trabajos, se propone la creaci´on de un repositorio controlado de informaci´on, donde los estudiantes puedan recopilar parte del material necesario para la realizaci´on de sus trabajos, ejemplos de ayuda, y tutoriales realizados por otros estudiantes; pero ademas contribuir a ampliar la información mediante sus propias experiencias. En la implementación del repositorio, se hace uso de las herramientas proporcionadas por la G Suite for Education (GSFE), siendo el núcleo, la herramienta denominada Google Classroom. En este trabajo se describe la implantación y experiencia con este sistema como medio para gestionar un repositorio organizado donde sus denominadas"clases", toman contenido de unidades temáticas; con la versatilidad de su acceso desde dispositivos móviles y la capacidad de reutilización en asignaturas reales.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Proyecto de Innovación educativa de la Universidad de Málaga PIE 17-118

Cutaneous manifestations of early systemic lupus erythematosus and correlation with systemic activity

RESUMEN: Las manifestaciones cutáneas del lupus eritematoso sistémico (LES) son heterogéneas (específicas e inespecíficas). Poco se sabe acerca de la relación entre estas manifestaciones y la actividad clínica e inmunológica de la enfermedad en sus etapas iniciales. Se llevó a cabo un estudio de corte transversal en 34 pacientes con LES temprano. Se encontró una asociación significativa entre alopecia e hipocomplementemia C3 (p = 0,021), hipocomplementemia C4 (p < 0,001) y anti-Sm (p = 0,011); entre eritema malar y anti-Ro (p = 0,037) y anti-La (p = 0,037); entre fotosensibilidad y anti-RNP (p = 0,037). Se observó una tendencia a la asociación entre úlceras orales e hipocomplementemia C4 (p = 0,064). No hubo asociación entre las manifestaciones cutáneas y la presencia de anti-ADN de doble cadena (anti-ds ADN), anticuerpos anticardiolipinas, anticoagulante lúpico, VDRL falso positivo, leucopenia, trombocitopenia, hipergammaglobulinemia, elevación de la velocidad de sedimentación globular o SLEDAI. Se resalta la importancia de la relación entre las manifestaciones cutáneas inespecíficas de LES (alopecia y fotosensibilidad) y la actividad sistémica en pacientes con enfermedad temprana y la clara asociación de estas con hipocomplementemia, un marcador importante de actividad inmunológica.ABSTRACT: Cutaneous manifestations of systemic lupus erythematosus (SLE) are heterogeneous (both specific and non-specific). Little is known about the relationship between these manifestations and the clinical and immunological activity of the disease in early stages. We carried out a cross-sectional study in 34 patients with early SLE. We found a significant association between alopecia and hypocomplementemia C3 (p = 0.021), hypocomplementemia C4 (p < 0.001) and anti-Sm (p = 0.011); between malar erythema and anti-Ro (p = 0.037) and anti-La (p = 0.037); between photosensitivity and anti-RNP (p = 0.037). We observed a trend to association between oral ulcers and hypocomplementemia C4 (p = 0.064). No association was found between cutaneous manifestations and the presence of anti-ds DNA, anticardiolipin antibodies, lupus anticoagulant, false-positive VDRL, leucopenia, thrombocytopenia, hypergammaglobulinemia, elevated erythrosedimentation rate or SLEDAI. We highlight the relevance of the relationship between non-specific cutaneous manifestations of early SLE (alopecia and photosensitivity) and the systemic activity of the disease and hypocomplementemia, an important marker of immunological activity

Randomized Clinical Trial of the Need for Antibiotic Treatment for Low-Risk Catheter-Related Bloodstream Infection Caused by Coagulase-Negative Staphylococci

According to clinical guidelines, the management of catheter-related bloodstream infections (CRBSI) due to coagulase-negative staphylococci (CoNS) includes catheter removal and antibiotic treatment for 5 to 7 days. However, in low-risk episodes, it remains uncertain whether antibiotic therapy is necessary. This randomized clinical trial aims to determine whether the non-administration of antibiotic therapy is as safe and effective as the recommended strategy in low-risk episodes of CRBSI caused by CoNS. With this purpose, a randomized, open-label, multicenter, non-inferiority clinical trial was conducted in 14 Spanish hospitals from 1 July 2019 to 31 January 2022. Patients with low-risk CRBSI caused by CoNS were randomized 1:1 after catheter withdrawal to receive/not receive parenteral antibiotics with activity against the isolated strain. The primary endpoint was the presence of any complication related to bacteremia or to antibiotic therapy within 90 days of follow-up. The secondary endpoints were persistent bacteremia, septic embolism, time until microbiological cure, and time until the disappearance of a fever. EudraCT: 2017-003612-39 INF-BACT-2017. A total of 741 patients were assessed for eligibility. Of these, 27 were included in the study; 15 (55.6%) were randomized to the intervention arm (non-antibiotic administration) and 12 (44.4%) to the control arm (antibiotic therapy as per standard practice). The primary endpoint occurred in one of the 15 patients in the intervention group (septic thrombophlebitis) and in no patients in the control group. The median time until microbiological cure was 3 days (IQR 1-3) in the intervention arm and 1.25 days (IQR 0.5-2.62) in the control arm, while the median time until fever resolution was zero days in both arms. The study was stopped due to the insufficient number of recruited patients. These results seem to indicate that low-risk CRBSI caused by CoNS can be managed without antibiotic therapy after catheter removal; efficacy and safety are not affected

Levels: Descriptive, Explanatory, and Ontological

Scientists and philosophers frequently speak about levels of description, levels of explanation, and ontological levels. In this paper, I propose a unified framework for modelling levels. I give a general definition of a system of levels and show that it can accommodate descriptive, explanatory, and ontological notions of levels. I further illustrate the usefulness of this framework by applying it to some salient philosophical questions: (1) Is there a linear hierarchy of levels, with a fundamental level at the bottom? And what does the answer to this question imply for physicalism, the thesis that everything supervenes on the physical? (2) Are there emergent properties? (3) Are higher-level descriptions reducible to lower-level ones? (4) Can the relationship between normative and non-normative domains be viewed as one involving levels? Although I use the terminology of “levels”, the proposed framework can also represent “scales”, “domains”, or “subject matters”, where these are not linearly but only partially ordered by relations of supervenience or inclusion

First Colombian Multicentric Newborn Screening for Congenital Toxoplasmosis

Congenital toxoplasmosis can result in permanent sequel as blindness or neurological damage in children and it seems to be more severe in South America than in other continents. There is a lack of information about this frequency in Colombia, where no control program is established, although it is a recognized cause of potentially preventable congenital blindness. We propose the first Colombian multicentric study to determine the frequency and impact of congenital toxoplasmosis. More than 15,000 newborns in seven cities were studied. Newborns were tested at birth by doing a cord blood test for toxoplasmosis. Additionally, children from mothers with history of toxoplasmosis acquired during pregnancy were recalled for a follow-up. The program identified fifteen children otherwise undiagnosed; three of these children died as consequence of congenital toxoplasmosis. The frequency of the congenital infection varied significantly between cities, being higher in Armenia and Florencia, intermediate in Bogota, Bucaramanga and Barranquilla and very low in western cities such as Cucuta and Riohacha. For the first time a significant correlation was found between mean rainfall at the city and the incidence of this congenital infection

Constraints on the χ_(c1) versus χ_(c2) polarizations in proton-proton collisions at √s = 8 TeV

The polarizations of promptly produced χ_(c1) and χ_(c2) mesons are studied using data collected by the CMS experiment at the LHC, in proton-proton collisions at √s=8  TeV. The χ_c states are reconstructed via their radiative decays χ_c → J/ψγ, with the photons being measured through conversions to e⁺e⁻, which allows the two states to be well resolved. The polarizations are measured in the helicity frame, through the analysis of the χ_(c2) to χ_(c1) yield ratio as a function of the polar or azimuthal angle of the positive muon emitted in the J/ψ → μ⁺μ⁻ decay, in three bins of J/ψ transverse momentum. While no differences are seen between the two states in terms of azimuthal decay angle distributions, they are observed to have significantly different polar anisotropies. The measurement favors a scenario where at least one of the two states is strongly polarized along the helicity quantization axis, in agreement with nonrelativistic quantum chromodynamics predictions. This is the first measurement of significantly polarized quarkonia produced at high transverse momentum