Electron stimulated desorption from condensed benzene.

The electron induced dissociation of condensed benzene (C6H6) in thin films deposited on a Pt substrate is investigated by electron stimulated desorption (ESD) of anions and cations. The desorbed yields are recorded as a function of incident electron energy in the range of 10 to 950 eV for a fixed film thickness of 2 monolayers (ML) and for a fixed energy of 950 eV, as well as a function of film thickness from 0.5 to 8 monolayers (ML) for anions, and from 0.5 to 12ML for cations. Both energy and thickness dependencies are discussed in terms of the three main mechanisms yielding positively and/or negatively charged fragments: dissociative electron attachment (DEA), dipolar dissociation (DD) and dissociative ionization (DI) processes. At the probed energies, DD is the major mechanism, while DEA is predominantly induced by secondary electrons from the Pt substrate. Desorption of the parent positive ion is strongly suppressed. Similar qualitative behaviours are observed for the energy dependence of both anion and cation ESD yields, while some discrepancies exist in the thickness dependence, including a very significant systematic magnitude difference found between such ions formation. An estimation of the effective DD cross-section including the desorption probability is obtained. Feasible mechanisms behind the observed energy and thickness dependences for anion and cation yields are proposed. These results highlight the need for further investigations to better understand the underlying processes of electron induced dissociation in condensed matter.

High frequency of endoluminal thrombus in patients with ischaemic stroke following AARS-CoV-2 infection.

BACKGROUND: Ischaemic stroke may be a major complication of SARS-CoV-2 infection. Studying and characterising the different aetiological subtypes, clinical characteristics, and functional outcomes may be valuable in guiding patient selection for optimal management and treatment. METHODS: Data were collected retrospectively on consecutive patients with COVID-19 who developed acute focal brain ischaemia (between 1 March and 19 April 2020) at a tertiary university hospital in Madrid (Spain). RESULTS: During the study period, 1594 patients were diagnosed with COVID-19. We found 22 patients with ischaemic stroke (1.38%), 6 of whom did not meet the inclusion criteria. The remaining 16 patients were included in the study (15 cases of ischaemic stroke and one case of transient ischaemic attack). Median baseline National Institutes of Health Stroke Scale score was 9 (interquartile range: 16), and mean (standard deviation) age was 73 years (12.8). Twelve patients (75%) were men. Mean time from COVID-19 symptom onset to stroke onset was 13 days. Large vessel occlusion was identified in 12 patients (75%). We detected elevated levels of D-dimer in 87.5% of patients and C-reactive protein in 81.2%. The main aetiology was atherothrombotic stroke (9 patients, 56.3%), with the predominant subtype being endoluminal thrombus (5 patients, 31.2%), involving the internal carotid artery in 4 cases and the aortic arch in one. The mortality rate in our series was 44% (7 of 16 patients). CONCLUSIONS: In patients with COVID-19, the most frequent stroke aetiology was atherothrombosis, with a high proportion of endoluminal thrombus (31.2% of patients). Our clinical and laboratory data support COVID-19-associated coagulopathy as a relevant pathophysiological mechanism for ischaemic stroke in these patients.

Oscillatory network markers of subcallosal cingulate deep brain stimulation for depression.

Identifying functional biomarkers related to treatment success can aid in expediting therapy optimization, as well as contribute to a better understanding of the neural mechanisms of the treatment-resistant depression (TRD) and subcallosal cingulate deep brain stimulation (SCC-DBS). Magnetoencephalography data were obtained from 16 individuals with SCC-DBS for TRD and 25 healthy subjects. The first objective of the study was to identify region-specific oscillatory modulations that both (i) discriminate individuals with TRD (with SCC-DBS OFF) from healthy controls, and (ii) discriminate TRD treatment responders from non-responders (with SCC-DBS ON). The second objective of this work was to further explore the effects of stimulation intensity and frequency on oscillatory activity in the identified brain regions of interest. Oscillatory power analyses led to the identification of brain regions that differentiated responders from non-responders based on modulations of increased alpha (8-12 Hz) and decreased gamma (32-116 Hz) power within nodes of the default mode, central executive, and somatomotor networks, Broca's area, and lingual gyrus. Within these nodes, it was also found that low stimulation frequency had stronger effects on oscillatory modulation than increased stimulation intensity. The identified functional network biomarkers implicate modulation of TRD-related activity in brain regions involved in emotional control/processing, motor control, and the interaction between speech, vision, and memory, which have all been implicated in depression. These electrophysiological biomarkers have the potential to be used as functional proxies for therapy optimization. Additional stimulation parameter analyses revealed that oscillatory modulations can be strengthened by increasing stimulation intensity or reducing frequency, which may represent potential avenues of direction in non-responders.

Evaluación funcional tras SARS-CoV-2 crítico. Estudio de cohortes de la unidad de rehabilitación en un hospital de tercer nivel / Functional evaluation in patient with critical SARS-CoV-2 disease: Cohort study in a third level hospital rehabilitation unit

Introducción: La neumonía por SARS-CoV-2 es una enfermedad infecciosa respiratoria altamente contagiosa que causa disfunción respiratoria, física y psicológica. Presentamos resultados de los pacientes valorados por el Servicio de Rehabilitación al alta de UCI por SARS-CoV-2. Material y método: Estudio de cohortes de pacientes ingresados en UCI por neumonía por SARS-CoV-2 desde el 01/10/2020 al 31/07/2021. Recogemos datos sociodemográficos, antecedentes personales, estancia media en UCI y hospital, Barthel, marcha (FAC) y mMRC (preingreso/valoración inicial/alta), desarrollo de patología osteomuscular y/o neurológica y necesidad de tratamiento rehabilitador. Resultados: Muestra de 341 pacientes de los cuales 224 cumplen criterios. Edad media: 63 años (68,75% hombres). Estancia media UCI/hospital: 27/44 días. Valorados por médicos rehabilitadores, facilitamos a los pacientes una guía elaborada por el equipo médico resolviendo dudas del proceso y pautando ejercicios de intensidad y dificultad progresiva, a realizar durante el ingreso y en el domicilio. El 42,86% desarrolló patología neurológica (83,33% del sistema nervioso periférico). El 100% ha realizado fisioterapia respiratoria y el 72,32% ha precisado fisioterapia motora. Conclusiones: En nuestro estudio, un elevado número de pacientes han precisado tratamiento rehabilitador para su recuperación funcional, destacando el desarrollo de patología neurológica post-COVID. El SARS-CoV-2 genera otras complicaciones, no solo respiratorias, subsidiarias de valorarse y tratarse por los Servicios de Rehabilitación para una recuperación integral que minimice las secuelas.(AU)

Introduction: SARS-COV-2 pneumonia is a highly contagious respiratory disease that causes respiratory, physical and psychological dysfunctions. We present the results of patient assessment when they were discharged from the ICU. Material and method: Cohort study of patients affected by SARS-COV-2 pneumonia admitted to the intensive care unit from 01/10/2020 to 31/07/2021. We collect sociodemographic data, personal history, ICU and hospital stay, Barthel, FAC and mMRC (pre-admission/initial assessment/discharge), development of osteomuscular and/or neurological pathology and need for rehabilitation treatment. Results: A total of 341 patients were evaluated, of which 224 met criteria. The average age was 63 years (68.75% men). Mean ICU/hospital stay were 27/44 days. They were assessed by physiatry, after that, we provide a guide developed by physiatry, solving doubts about the disease and setting exercises of intensity and progressive difficulty, to be carried out during the admission and at home. Neurological pathology was present at 42.86% patients, of whom a 83.33% were peripheral nervous system disease. The total of the sample needed respiratory physiotherapy and a 72.32% motor physiotherapy. Conclusions: In our study, a high number of patients have needed rehabilitation treatment in order to get functional recovery, highlighting the development of post-COVID neurological pathology. SARS-COV-2 generates other complications, not only respiratory, subsidiary to be assessed and treated by rehabilitation services for a comprehensive recovery that minimizes sequelae.(AU)

Differences and similarities between COVID-19 related-headache and COVID-19 vaccine related-headache. A case-control study. / Diferencias y similitudes entre la cefalea relacionada con la COVID-19 y la cefalea relacionada con la vacuna de la COVID-19. Un estudio de casos y controles.

INTRODUCTION: Headache is a frequent symptom at the acute phase of coronavirus disease 2019 (COVID-19) and also one of the most frequent adverse effects following vaccination. In both cases, headache pathophysiology seems linked to the host immune response and could have similarities. We aimed to compare the clinical phenotype and the frequency and associated onset symptoms in patients with COVID-19 related-headache and COVID-19 vaccine related-headache. SUBJECTS AND METHODS: A case-control study was conducted. Patients with confirmed COVID-19 infection and COVID-19-vaccine recipients who experienced new-onset headache were included. A standardised questionnaire was administered, including demographic variables, prior history of headaches, associated symptoms and headache-related variables. Both groups were matched for age, sex, and prior history of headache. A multivariate regression analysis was performed. RESULTS: A total of 238 patients fulfilled eligibility criteria (143 patients with COVID-19 related-headache and 95 subjects experiencing COVID-19 vaccine related-headache). Patients with COVID-19 related-headache exhibited a higher frequency of arthralgia, diarrhoea, dyspnoea, chest pain, expectoration, anosmia, myalgia, odynophagia, rhinorrhoea, cough, and dysgeusia. Further, patients with COVID-19 related-headache had a more prolonged daily duration of headache and described the headache as the worst headache ever experienced. Patients with COVID-19 vaccine-related headache, experienced more frequently pain in the parietal region, phonophobia, and worsening of the headache by head movements or eye movements. CONCLUSION: Headache caused by SARS-CoV-2 infection and COVID-19 vaccination related-headache have more similarities than differences, supporting a shared pathophysiology, and the activation of the innate immune response. The main differences were related to associated symptoms.

TITLE: Diferencias y similitudes entre la cefalea relacionada con la COVID-19 y la cefalea relacionada con la vacuna de la COVID-19. Un estudio de casos y controles.Introducción. La cefalea es un síntoma frecuente en la fase aguda de la enfermedad por coronavirus 2019 (COVID-19) y también uno de los efectos adversos más comunes tras la vacunación. En ambos casos, la fisiopatología de la cefalea parece estar relacionada con la respuesta inmunitaria del huésped y podría presentar similitudes. Nuestro objetivo fue comparar el fenotipo clínico y la frecuencia de los síntomas asociados y los síntomas de inicio en pacientes con cefalea relacionada con la COVID-19 y cefalea relacionada con la vacuna de la COVID-19. Sujetos y métodos. Se realizó un estudio de casos y controles. Se incluyó a pacientes con infección confirmada por COVID-19 y receptores de la vacuna de la COVID-19 que experimentaron un nuevo inicio de cefalea. Se administró un cuestionario estandarizado que incluyó variables demográficas, antecedentes previos de cefaleas, síntomas asociados y variables relacionadas con la cefalea. Ambos grupos se emparejaron por edad, sexo y antecedentes previos de cefaleas. Se realizó un análisis de regresión multivariante. Resultados. Un total de 238 pacientes cumplieron con los criterios de elegibilidad (143 pacientes con cefalea relacionada con la COVID-19 y 95 sujetos con cefalea relacionada con la vacuna de la COVID-19). Los pacientes con cefalea relacionada con la COVID-19 presentaron una mayor frecuencia de artralgia, diarrea, disnea, dolor torácico, expectoración, anosmia, mialgia, odinofagia, rinorrea, tos y disgeusia. Además, los pacientes con cefalea relacionada con la COVID-19 experimentaron una duración diaria más prolongada de la cefalea y describieron la cefalea como la peor que habían experimentado. Los pacientes con cefalea relacionada con la vacuna de la COVID-19 experimentaron con más frecuencia dolor en la región parietal, fonofobia y empeoramiento de la cefalea por movimientos de la cabeza o de los ojos. Conclusión. La cefalea causada por la infección por el SARS-CoV-2 y la cefalea relacionada con la vacunación de la COVID-19 presentan más similitudes que diferencias, lo que respalda una fisiopatología compartida y la activación de la respuesta inmunitaria innata. Las principales diferencias estuvieron relacionadas con los síntomas asociados.

Grupos de riesgo de recidiva bioquímica tras prostatectomía radical de la Asociación Europea de Urología: validación externa e identificación de factores de riesgo de progresión y mortalidad / European Association of Urology biochemical recurrence risk groups after radical prostatectomy: external validation and identification of independent risk factors for progression and death

Contexto La EAU propuso una clasificación del riesgo de progresión y muerte en pacientes con recidiva bioquímica tras prostatectomía radical (PR). Objetivo Validar la clasificación de riesgo de RB de la EAU en nuestro contexto e identificar los factores asociados con la progresión y la muerte. Material y métodos Estudio multicéntrico, retrospectivo y observacional que incluyó a 2140 pacientes sometidos a PR entre 2011 y 2015. Los pacientes con RB fueron identificados y estratificados en grupos de riesgo bajo (TD-PSA >1 año y pGS <8) o alto (TD-PSA <=1 año o pGS=>8). Se calcularon la supervivencia libre de progresión por PSA y supervivencia libre de metástasis (SLP-PSA, SLM), la supervivencia cáncer específica y la supervivencia global (curvas de Kaplan Meier y log-rank test). Se identificaron factores de riesgo independientes (regresión de Cox). Resultados Un total de 427 pacientes experimentaron RB (32,3% de bajo riesgo y 67,7% de alto riesgo). La mediana de SLP-PSA fue de 135,0 m (IC 95% 129,63-140,94) y 115,0 m (IC 95% 104,02-125,98) (p < 0,001) para los grupos de bajo y alto riesgo, respectivamente. Hubo diferencias significativas en la SLM y la supervivencia global entre ambos grupos. El grupo de riesgo de RB de la EAU fue un factor independiente de progresión del PSA (HR 2,55; p 0,009). El tiempo transcurrido entre la PR y la RB fue un factor independiente de aparición de metástasis (HR 0,43; IC 95%: 0,18-0,99; p 0,044) y muerte (HR 0,17; IC 95%: 0,26-0,96; 23 p 0,048). Se hallaron diferencias en la SLM (p 0,001) y la supervivencia cáncer específica (p 0,004) para <12, ≥ 12-<36 y ≥36 meses transcurridos entre la PR y la RB. Otros factores independientes fueron la radioterapia de rescate precoz y el PSA en el momento de aparición de la RB (AU)

Background The EAU proposed a progression and death risk classification in patients with biochemical recurrence after radical prostatectomy (PR). Objective To validate the EAU BCR-risk classification in our setting and to find factors related to progression and death. Material and methods Multicenter, retrospective, observational study including 2140 patients underwent RP between 2011 and 2015. Patients with BCR were identified and stratified in low risk (PSA-DT>1 yr and pGS <8) or high-risk (PSA-DT <=1 yr or pGS=>8) grouping. PSA and metastatic free survival (PSA-PFS, MFS), cancer specific survival and overall survival were calculated (Kaplan Meier curves and log-rank test). Independent risk factors were identified (Cox regression). Results 427 patients experienced BCR (32.3% low-risk and 67.7% high-risk). Median PSA-PFS was 135.0 mo (95% CI 129.63-140.94) and 115.0 mo (95% CI 104.02-125.98) (p < .001), for low and high-risk groups, respectively. There was also significant differences in MFS and overall survival. The EAU BCR risk grouping was independent factor for PSA-progression (HR 2.55, p 0.009). Time from PR to BCR, was an independent factor for metastasis onset (HR 0.43, 95% CI 0.18-0.99; p 0.044) and death (HR 0.17, 95% CI 0.26.0.96; 23 p 0.048). Differences in MFS (p 0.001) and cancer specific survival (p 0.004) were found for <12, ≥12-<36 and≥36 months from PR to BCR. Others independent factors were early salvage radiotherapy and PSA at BCR. Conclusions High-risk group is a prognostic factor for biochemical progression, but it has a limited accuracy on MP and death in our setting. The inclusion of other factors could increase its predictive power (AU)

Neutrino-Induced Coherent π

MINERvA has measured the ν_{µ}-induced coherent π^{+} cross section simultaneously in hydrocarbon (CH), graphite (C), iron (Fe), and lead (Pb) targets using neutrinos from 2 to 20 GeV. The measurements exceed the predictions of the Rein-Sehgal and Berger-Sehgal PCAC based models at multi-GeV ν_{µ} energies and at produced π^{+} energies and angles, E_{π}>1 GeV and θ_{π}<10°. Measurements of the cross-section ratios of Fe and Pb relative to CH reveal the effective A scaling to increase from an approximate A^{1/3} scaling at few GeV to an A^{2/3} scaling for E_{ν}>10 GeV.

Evaluated electron scattering cross section dataset for gaseous benzene in the energy range 0.1-1000 eV.

In this study, a complete and self-consistent cross section dataset for electron transport simulations through gaseous benzene in the energy range 0.1-1000 eV has been critically compiled. Its reliability has been evaluated through a joint experimental and computational procedure. To accomplish this, the compiled dataset has been used as input for event-by-event Monte Carlo simulations of the magnetically confined electron transport through gaseous benzene, and the simulated transmitted intensity has been compared with the experimental one for different incident energies and benzene gas pressures.

Simultaneous Measurement of Muon Neutrino ν_{µ} Charged-Current Single π

Neutrino-induced charged-current single π^{+} production in the Δ(1232) resonance region is of considerable interest to accelerator-based neutrino oscillation experiments. In this Letter, high statistic differential cross sections are reported for the semiexclusive reaction ν_{µ}A→µ^{-}π^{+}+ nucleon(s) on scintillator, carbon, water, iron, and lead targets recorded by MINERvA using a wideband ν_{µ} beam with ⟨E_{ν}⟩≈6 GeV. Suppression of the cross section at low Q^{2} and enhancement of low T_{π} are observed in both light and heavy nuclear targets compared with phenomenological models used in current neutrino interaction generators. The cross sections per nucleon for iron and lead compared with CH across the kinematic variables probed are 0.8 and 0.5 respectively, a scaling which is also not predicted by current generators.

Simultaneous Measurement of ν_{µ} Quasielasticlike Cross Sections on CH, C, H_{2}O, Fe, and Pb as a Function of Muon Kinematics at MINERvA.

This Letter presents the first simultaneous measurement of the quasielasticlike neutrino-nucleus cross sections on C, water, Fe, Pb, and scintillator (hydrocarbon or CH) as a function of longitudinal and transverse muon momentum. The ratio of cross sections per nucleon between Pb and CH is always above unity and has a characteristic shape as a function of transverse muon momentum that evolves slowly as a function of longitudinal muon momentum. The ratio is constant versus longitudinal momentum within uncertainties above a longitudinal momentum of 4.5 GeV/c. The cross section ratios to CH for C, water, and Fe remain roughly constant with increasing longitudinal momentum, and the ratios between water or C to CH do not have any significant deviation from unity. Both the overall cross section level and the shape for Pb and Fe as a function of transverse muon momentum are not reproduced by current neutrino event generators. These measurements provide a direct test of nuclear effects in quasielasticlike interactions, which are major contributors to long-baseline neutrino oscillation data samples.

[Management of COVID-19 pandemic in hospital at home in two regional Spanish hospitals. what it meant, who we cared for, who died and how assistance has evolved over time]. / Manejo de la pandemia de COVID-19 en hospitalización domiciliaria en dos hospitales comarcales españoles: qué significó, quiénes atendimos, quién falleció y como evolucionó la asistencia a lo largo del tiempo.

OBJECTIVE: Home Hospitalization (HH) is an alternative hospitalization modality that can be very useful in times of health stress such as the COVID-19 pandemic. This paper includes the management of patients admitted with COVID-19 in HH in two county spanish hospitals for two years. METHODS: A descriptive, observational and retrospective study of all patients admitted at HH with a diagnosis of COVID-19 disease was carried out. Subsequently, further analysis was carried out to characterize the patients who died in HH or 30 days after discharge and another to compare the management between the first phase of the study (2020) and the second one (2021 and part of 2022). RESULTS: A total of 167 patients were recruited. A 52.1% moved to watch that the recovery continued compared to 40.7% in which it was done to watch that they did not worsen. The patients who died in HAD were older (mean 87.5 years), more comorbid and more likely to have do-not resucitate orders (DNR) in case of cardiac arrest (85%). In the second phase of the study, older patients, more comorbid patients and with a greater degree of DNR orders were admitted than those admitted throughout 2020. CONCLUSIONS: HAD is a useful resource to increase the resilience of health systems in cases of stress such as the disease caused by COVID-19. The development and growth of existing units, as well as the creation of new ones where they do not exist, could be a basic tool for the medicine of the future.

Análisis de pruebas diagnósticas de pacientes con ojo seco e hipotiroidismo: un estudio observacional / Analysis of diagnostic tests in patients with dry eye and hypothyroidism: an observational study

Propósito Colombia es un país con una alta prevalencia de hipotiroidismo, aproximadamente del 18,5% respecto al resto de países latinoamericanos que se estima en un 10%. Es por ello que en la consulta de oftalmología se encuentra una gran proporción de pacientes con esta enfermedad y que además presentan síntomas de ojo seco. Al realizar una búsqueda en la literatura médica, la mayoría de publicaciones se refieren a la presentación clínica de ojo seco del hipertiroidismo. El objetivo de este estudio es describir los hallazgos de las diferentes pruebas para el diagnóstico de ojo seco en pacientes con hipotiroidismo. Métodos Se trata de un estudio observacional, de tipo transversal, realizado en el periodo comprendido entre mayo y diciembre de 2019 en la unidad de superficie ocular del Centro de Tecnología Oftálmica (CTO) en Bogotá. Se evaluaron las pruebas de Test de OSDI (Ocular Surface Disease Index), Schirmer tipo I, altura del menisco lagrimal, NiBUT, Osmolaridad, test de Ferning, test de verde de lisamina de 59 pacientes con enfermedad de ojo seco y antecedente de hipotiroidismo. Resultados Las prueba de Schirmer tipo I y NiBUT fueron los parámetros que presentaron mayor porcentaje de severidad, mientras que la tinción con verde de lisamina y la meniscometría mostraron tendencia a la normalidad. Conclusione La población de este estudio presenta un ojo seco tipo mixto sin daño en las células epiteliales (AU)

Purpose Colombia is a country with a high prevalence of hypothyroidism, approximately 18.5% compared to the rest of Latin American countries, which is estimated at 10%. That is why in the ophthalmology consultation we find a large proportion of patients with this disease and who also present symptoms of dry eye. When conducting a search in the medical literature, most publications refer to the clinical presentation of dry eye in hyperthyroidism, which is why the main objective of this study is to evaluate tear function tests in the diagnosis of dry eye in patients with hypothyroidism. Methods This is an observational, cross-sectional study carried out in the period between May and December 2019 in the ocular surface unit of the Ophthalmic Technology Center (CTO) in Bogotá. The tests of: OSDI test (Ocular Surface Disease Index), Schirmer type I, tear meniscus height, NiBUT, Osmolarity, Ferning test, Lisamine Green test of 59 patients with Dry Eye Disease and history of hypothyroidism. Results Schirmer type I and NiBUT tests were the parameters that presented the highest percentage of severity, while lissamine green staining and meniscometry showed a tendency to normality. Conclusions The population of this study presents a mixed type dry eye without epithelial cell damage (AU)

A Bayesian network model for predicting cardiovascular risk.

BACKGROUND AND OBJECTIVE: Cardiovascular diseases are the leading death cause in Europe and entail large treatment costs. Cardiovascular risk prediction is crucial for the management and control of cardiovascular diseases. Based on a Bayesian network built from a large population database and expert judgment, this work studies interrelations between cardiovascular risk factors, emphasizing the predictive assessment of medical conditions, and providing a computational tool to explore and hypothesize such interrelations. METHODS: We implement a Bayesian network model that considers modifiable and non-modifiable cardiovascular risk factors as well as related medical conditions. Both the structure and the probability tables in the underlying model are built using a large dataset collected from annual work health assessments as well as expert information, with uncertainty characterized through posterior distributions. RESULTS: The implemented model allows for making inferences and predictions about cardiovascular risk factors. The model can be utilized as a decision- support tool to suggest diagnosis, treatment, policy, and research hypothesis. The work is complemented with a free software implementing the model for practitioners' use. CONCLUSIONS: Our implementation of the Bayesian network model facilitates answering public health, policy, diagnosis, and research questions concerning cardiovascular risk factors.

Measurement of the axial vector form factor from antineutrino-proton scattering.

Scattering of high energy particles from nucleons probes their structure, as was done in the experiments that established the non-zero size of the proton using electron beams1. The use of charged leptons as scattering probes enables measuring the distribution of electric charges, which is encoded in the vector form factors of the nucleon2. Scattering weakly interacting neutrinos gives the opportunity to measure both vector and axial vector form factors of the nucleon, providing an additional, complementary probe of their structure. The nucleon transition axial form factor, FA, can be measured from neutrino scattering from free nucleons, νµn → µ-p and [Formula: see text], as a function of the negative four-momentum transfer squared (Q2). Up to now, FA(Q2) has been extracted from the bound nucleons in neutrino-deuterium scattering3-9, which requires uncertain nuclear corrections10. Here we report the first high-statistics measurement, to our knowledge, of the [Formula: see text] cross-section from the hydrogen atom, using the plastic scintillator target of the MINERvA11 experiment, extracting FA from free proton targets and measuring the nucleon axial charge radius, rA, to be 0.73 ± 0.17 fm. The antineutrino-hydrogen scattering presented here can access the axial form factor without the need for nuclear theory corrections, and enables direct comparisons with the increasingly precise lattice quantum chromodynamics computations12-15. Finally, the tools developed for this analysis and the result presented are substantial advancements in our capabilities to understand the nucleon structure in the weak sector, and also help the current and future neutrino oscillation experiments16-20 to better constrain neutrino interaction models.

European Association of Urology biochemical recurrence risk groups after radical prostatectomy: External validation and identification of independent risk factors for progression and death.

BACKGROUND: The EAU proposed a progression and death risk classification in patients with biochemical recurrence after radical prostatectomy (PR). OBJECTIVE: To validate the EAU BCR-risk classification in our setting and to find factors related to progression and death. MATERIAL AND METHODS: Multicenter, retrospective, observational study including 2140 patients underwent RP between 2011 and 2015. Patients with BCR were identified and stratified in low risk (PSA-DT >1yr and pGS <8) or high-risk (PSA-DT ≤1yr or pGS ≥8) grouping. PSA and metastatic free survival (PSA-PFS, MFS), cancer specific survival (CSS) and overall survival (OS) were calculated (Kaplan Meier curves and log-rank test). Independent risk factors were identified (Cox regression). RESULTS: 427 patients experienced BCR (32.3% low-risk and 67.7% high-risk). Median PSA-PFS was 135,0 mo (95% CI 129,63-140,94) and 115,0 mo (95% CI 104,02-125,98) (p<0,001), for low and high-risk groups, respectively. There were also significant differences in MFS and OS. The EAU BCR risk grouping was independent factor for PSA-progression (HR 2.55, p 0.009). Time from PR to BCR, was an independent factor for metastasis onset (HR 0.43, 95% CI 0.18-0.99; p 0.044) and death (HR 0.17, 95% CI 0.26.0.96; 23 p 0.048). Differences in MFS (p 0.001) and CSS (p 0.004) were found for <12, ≥12-<36 and ≥36 months from PR to BCR. Others independent factors were early salvage radiotherapy and PSA at BCR. CONCLUSIONS: High-risk group is a prognostic factor for biochemical progression, but it has a limited accuracy on MP and death in our setting. The inclusion of other factors could increase its predictive power.

[Functional evaluation in patient with critical SARS-CoV-2 disease: Cohort study in a third level hospital rehabilitation unit]. / Evaluación funcional tras SARS-CoV-2 crítico. Estudio de cohortes de la unidad de rehabilitación en un hospital de tercer nivel.

INTRODUCTION: SARS-COV-2 pneumonia is a highly contagious respiratory disease that causes respiratory, physical and psychological dysfunctions. We present the results of patient assessment when they were discharged from the ICU. MATERIAL AND METHOD: Cohort study of patients affected by SARS-COV-2 pneumonia admitted to the intensive care unit from 01/10/2020 to 31/07/2021. We collect sociodemographic data, personal history, ICU and hospital stay, Barthel, FAC and mMRC (pre-admission/initial assessment/discharge), development of osteomuscular and/or neurological pathology and need for rehabilitation treatment. RESULTS: A total of 341 patients were evaluated, of which 224 met criteria. The average age was 63 years (68.75% men). Mean ICU/hospital stay were 27/44 days. They were assessed by physiatry, after that, we provide a guide developed by physiatry, solving doubts about the disease and setting exercises of intensity and progressive difficulty, to be carried out during the admission and at home. Neurological pathology was present at 42.86% patients, of whom a 83.33% were peripheral nervous system disease. The total of the sample needed respiratory physiotherapy and a 72.32% motor physiotherapy. CONCLUSIONS: In our study, a high number of patients have needed rehabilitation treatment in order to get functional recovery, highlighting the development of post-COVID neurological pathology. SARS-COV-2 generates other complications, not only respiratory, subsidiary to be assessed and treated by rehabilitation services for a comprehensive recovery that minimizes sequelae.

Regulatory and metabolic adaptations in the nitrogen assimilation of marine picocyanobacteria.

Prochlorococcus and Synechococcus are the two most abundant photosynthetic organisms on Earth, with a strong influence on the biogeochemical carbon and nitrogen cycles. Early reports demonstrated the streamlining of regulatory mechanisms in nitrogen metabolism and the removal of genes not strictly essential. The availability of a large series of genomes, and the utilization of latest generation molecular techniques have allowed elucidating the main mechanisms developed by marine picocyanobacteria to adapt to the environments where they thrive, with a particular interest in the strains inhabiting oligotrophic oceans. Given that nitrogen is often limited in those environments, a series of studies have explored the strategies utilized by Prochlorococcus and Synechococcus to exploit the low concentrations of nitrogen-containing molecules available in large areas of the oceans. These strategies include the reduction in the GC and the cellular protein contents; the utilization of truncated proteins; a reduced average amount of N in the proteome; the development of metabolic mechanisms to perceive and utilize nanomolar nitrate concentrations; and the reduced responsiveness of key molecular regulatory systems such as NtcA to 2-oxoglutarate. These findings are in sharp contrast with the large body of knowledge obtained in freshwater cyanobacteria. We will outline the main discoveries, stressing their relevance to the ecological success of these important microorganisms.

Analysis of diagnostic tests in patients with dry eye and hypothyroidism: an observational study.

PURPOSE: Colombia is a country with a high prevalence of hypothyroidism, approximately 18.5% compared to the rest of Latin American countries, which is estimated at 10%. That is why in the ophthalmology consultation we find a large proportion of patients with this disease and who also present symptoms of dry eye. When conducting a search in the medical literature, most publications refer to the clinical presentation of dry eye in hyperthyroidism, which is why the main objective of this study is to evaluate tear function tests in the diagnosis of dry eye in patients with hypothyroidism. METHODS: This is an observational, cross-sectional study carried out in the period between May and December 2019 in the ocular surface unit of the Ophthalmic Technology Center (CTO) in Bogotá. The tests of: OSDI test (Ocular Surface Disease Index), Schirmer type I, tear meniscus height, NiBUT, Osmolarity, Ferning test, Lisamine Green test of 59 patients with Dry Eye Disease (DED) and history of hypothyroidism. RESULTS: Schirmer type I and NiBUT tests were the parameters that presented the highest percentage of severity, while lissamine green staining and meniscometry showed a tendency to normality. CONCLUSIONS: The population of this study presents a mixed type dry eye without epithelial cell damage.

Estrategias de retroalimentación inmersas en tecnologías de asistencia para promover la participación social de niños con parálisis cerebral: revisión sistemática / Feedback strategies in assistive technology to promote social participation in children with cerebral palsy: Systematic review

Introducción: Vivir con parálisis cerebral tiene consecuencias en la participación social. Las tecnologías utilizadas para generar independencia se limitan a resultados en variables biológicas y fisiológicas. El objetivo es sintetizar la evidencia en intervenciones con tecnologías de asistencia que incluyan sistemas de retroalimentación, con el fin de conocer los desenlaces en la participación social en niños con parálisis cerebral. Metodología: Se tomaron 5 bases de datos de rehabilitación y se obtuvieron 683 artículos, de los cuales se incluyeron 9. Resultados: Los estudios evaluaron la participación social con diversos instrumentos; la mayoría sugieren efectos positivos en actividades como caminar, escribir y jugar, favoreciendo la interacción social en el entorno, utilizando tecnologías como lápices electrónicos, switches, exoesqueletos, entre otros.Conclusión: Debido a la baja calidad metodológica de los estudios, no se establecen conclusiones sólidas. Sin embargo, la evidencia propone que las tecnologías de asistencia con retroalimentación tienen un impacto positivo en los componentes de la participación social.(AU)

Introduction: Living with cerebral palsy has consequences such as social interaction. Assistive technologies used for improving independence only focuses on biological and physiological variables. The main objective in this review is to synthesize the evidence on interventions with assistive technologies, including feedback systems, with the aim of discovering outcomes of social participation in children with cerebral palsy. Methodology: There were 5 databases from rehabilitation which showed 683 articles in which only 9 were included. Results: The studies assessed social participation with several instruments. The majority suggested positive effects in activities such as: walking, writing, playing, and social interaction. There were tools such as electronic pencils, switches, and exoskeletons present. Conclusion: Due to the poor quality of the methodologies of these studies, the search does not establish solid conclusions. However, the evidence suggests that assistive technologies with feedback have a positive impact on aspects of social participation.(AU)