L\'{e}vy flights in inhomogeneous environments

We study the long time asymptotics of probability density functions (pdfs) of L\'{e}vy flights in different confining potentials. For that we use two models: Langevin - driven and (L\'{e}vy - Schr\"odinger) semigroup - driven dynamics. It turns out that the semigroup modeling provides much stronger confining properties than the standard Langevin one. Since contractive semigroups set a link between L\'{e}vy flights and fractional (pseudo-differential) Hamiltonian systems, we can use the latter to control the long - time asymptotics of the pertinent pdfs. To do so, we need to impose suitable restrictions upon the Hamiltonian and its potential. That provides verifiable criteria for an invariant pdf to be actually an asymptotic pdf of the semigroup-driven jump-type process. For computational and visualization purposes our observations are exemplified for the Cauchy driver and its response to external polynomial potentials (referring to L\'{e}vy oscillators), with respect to both dynamical mechanisms.Comment: Major revisio

Corrección quirúrgica del estrabismo en 2 pacientes con el síndrome de Moebius

ResumenSe presentan las características oftalmológicas y clínicas de 2 pacientes (una mujer y un hombre) con diagnóstico de síndrome de Moebius. Esta entidad por lo general bilateral, de causa multifactorial, se caracteriza por marcada esotropía, con gran limitación de la abducción, y otras alteraciones faciales. Se presentan 2 casos clínicos a los que se les realizó corrección quirúrgica.AbstractIt's presented the ophthalmic and clinical characteristic of 2 patients (female and male), with diagnosis of Moebius syndrome. This is a disorder generally bilateral, of multifactorial cause which is characterized by marked esotropia, with large limitation of abduction, with other facial alterations. We presented 2 clinic cases which already underwent surgical correctio

Guía de práctica clínica para el manejo quirúrgico de la obesidad en adultos en el Seguro Social del Perú (EsSalud)

Background: This article summarizes the clinical practice guide (CPG) for the surgical management of obesity in adults in the Social Security of Peru (EsSalud). Objective: To provide clinical recommendations based on evidence for the surgical management of patients with obesity in EsSalud. Material and Methods: A CPG for the surgical managmente of patients with obesity in EsSalud was developed. To this end, a guideline development group (local GDG) was established, including medical specialists and methodologists. The local GDG formulated 7 clinical questions to be answered by this CPG. Systematic searches of systematic reviews and -when it was considered pertinent- primary studies were conducted in Medline and CENTRAL during 2019. The evidence to answer each of the posed clinical questions was selected. The quality of the evidence was evaluated using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology. In periodic work meetings, the local GDG used the GRADE methodology to review the evidence and formulate the recommendations, points of good clinical practice, and the flowchart identification of patients with indication for bariatric / metabolic surgery and selection of the type of surgical intervention. The flowchart was designed in the final phase or last meeting based on the recommendations made previously. Finally, the CPG was approved with Resolution No. 115 – IETSI – ESSALUD – 2020. Results: This CPG addressed 7 clinical questions, divided into topics of surgical management of patients with obesity. Based on these questions, 6 recommendations were formulated (3 strong and 3 conditional), 18 BPC, and 2 flow charts. Conclusion: This article summarizes the methodology, recommendations based on evidence, and the points of good clinical practice from the CPG for the surgical management of obesity in EsSalud.Introducción: El presente artículo resume la guía de práctica clínica (GPC) para el manejo quirúrgico de la obesidad en adultos en el Seguro Social del Perú (EsSalud). Objetivo: Proveer recomendaciones clínicas basadas en evidencia para el manejo quirúrgico de la obesidad en adultos en EsSalud. Material y Métodos: Se conformó un grupo elaborador de la guía (GEG) que incluyó médicos especialistas y metodólogos. El GEG formuló 7 preguntas clínicas a ser respondidas por la presente GPC. Se realizó búsquedas sistemáticas de revisiones sistemáticas y –cuando fue considerado pertinente– estudios primarios en Medline y CENTRAL durante el 2019. Se seleccionó la evidencia para responder cada una de las preguntas clínicas planteadas. La certeza de la evidencia fue evaluada usando la metodología Grading of Recommendations Assessment, Development, and Evaluation (GRADE). En reuniones de trabajo periódicas, el GEG usó la metodología GRADE para revisar la evidencia y formular las recomendaciones, los puntos de buenas prácticas clínicas. El flujograma fue diseñado en la fase final o última reunión en base a las recomendaciones formuladas previamente. Finalmente, la GPC fue aprobada con Resolución N° 115 – IETSI – ESSALUD – 2020. Resultados: La presente GPC abordó 7 preguntas clínicas, divididas en a temas de manejo quirúrgico de pacientes con obesidad. En base a dichas preguntas se formularon 6 recomendaciones (3 fuertes y 3 condicionales), 18 BPC, y 2 flujogramas. Conclusión: El presente artículo resume la metodología, las recomendaciones basadas en evidencias, y los puntos de buena práctica clínica de la GPC para manejo quirúrgico de la obesidad en adultos en EsSalud

Guía de práctica clínica para el tratamiento del cáncer de próstata metastásico hormonosensible en el Seguro Social del Perú (EsSalud)

Introduction: This article summarizes the clinical practice guideline (CPG) for the treatment of metastatic hormone-sensitive prostate cancer in the Social Security of Peru (EsSalud). Objective: To provide evidence-based clinical recommendations for the treatment of adults with hormone-sensitive metastatic adenocarcinoma of the prostate with de novo or recurrent presentation and high or low metastatic volume in EsSalud. Methods: A guideline development group (GDG) was formed, which included specialist physicians and methodologists, who formulated clinical questions. Systematic searches were conducted for systematic reviews and - when deemed relevant - primary studies in PubMed during 2022. Evidence was selected to answer each of the clinical questions posed. The certainty of evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology. In periodic working meetings, the GEG used the GRADE methodology to review the evidence and formulate recommendations. The CPG was reviewed by external experts before its approval. Results: The CPG addressed 6 clinical questions, divided into 2 main topics: considerations on androgen deprivation therapy (ADT) and ADT combined with other therapies. Based on these questions, 10 recommendations were formulated (4 strong and 6 conditional), and 6 points of good clinical practice. Conclusion: Evidence-based recommendations were issued for the management of patients with this pathology.Introducción: Este artículo resume la guía de práctica clínica (GPC) para el tratamiento del cáncer de próstata metastásico hormonosensible en el Seguro Social del Perú (EsSalud). Objetivo: Proveer recomendaciones clínicas basadas en evidencia para el tratamiento de adultos con adenocarcinoma de próstata metastásico hormonosensible con presentación de novo o recurrente y de alto o bajo volumen metastásico en EsSalud. Métodos: Se conformó un grupo elaborador de la guía (GEG) que incluyó médicos especialistas y metodólogos, el cual formuló preguntas clínicas. Se realizaron búsquedas sistemáticas de revisiones sistemáticas y –cuando fue considerado pertinente– estudios primarios en PubMed durante el 2022. Se seleccionó la evidencia para responder cada una de las preguntas clínicas planteadas. Se evaluó la certeza de evidencia usando la metodología Grading of Recommendations Assessment, Development, and Evaluation (GRADE). En reuniones de trabajo periódicas, el GEG usó la metodología GRADE para revisar la evidencia y formular las recomendaciones. La GPC fue revisada por expertos externos antes de su aprobación. Resultados: La GPC abordó 6 preguntas clínicas, divididas en 2 temas principales: consideraciones sobre la terapia de deprivación androgénica (TDA) y TDA combinada con otras terapias. En base a dichas preguntas se formularon 10 recomendaciones (4 fuertes y 6 condicionales) y 6 puntos de buena práctica clínica. Conclusión: Se emitieron recomendaciones basadas en evidencia para el manejo de pacientes con esta patología

Measurement of the cosmic ray spectrum above 4×10184{\times}10^{18} eV using inclined events detected with the Pierre Auger Observatory

A measurement of the cosmic-ray spectrum for energies exceeding $4{\times}10^{18}$ eV is presented, which is based on the analysis of showers with zenith angles greater than $60^{\circ}$ detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above $5.3{\times}10^{18}$ eV, the "ankle", the flux can be described by a power law $E^{-\gamma}$ with index $\gamma=2.70 \pm 0.02 \,\text{(stat)} \pm 0.1\,\text{(sys)}$ followed by a smooth suppression region. For the energy ($E_\text{s}$) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find $E_\text{s}=(5.12\pm0.25\,\text{(stat)}^{+1.0}_{-1.2}\,\text{(sys)}){\times}10^{19}$ eV.Comment: Replaced with published version. Added journal reference and DO

Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory

The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The response of the radio stations in the 30 to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of the incoming electric field. For the latter, the energy deposit per area is determined from the radio pulses at each observer position and is interpolated using a two-dimensional function that takes into account signal asymmetries due to interference between the geomagnetic and charge-excess emission components. The spatial integral over the signal distribution gives a direct measurement of the energy transferred from the primary cosmic ray into radio emission in the AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air shower arriving perpendicularly to the geomagnetic field. This radiation energy -- corrected for geometrical effects -- is used as a cosmic-ray energy estimator. Performing an absolute energy calibration against the surface-detector information, we observe that this radio-energy estimator scales quadratically with the cosmic-ray energy as expected for coherent emission. We find an energy resolution of the radio reconstruction of 22% for the data set and 17% for a high-quality subset containing only events with at least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO

Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principle calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.Comment: Replaced with published version. Added journal reference and DOI. Supplemental material in the ancillary file

Guía de práctica clínica para manejo de las lesiones pulpares y periapicales en dentición permanente en el Seguro Social de Salud del Perú (EsSalud)

Introduction: This article summarizes the evidence-based recommendations of the clinical practice guideline (CPG) for the treatment of patients with pulpal and periapical lesions in the Social Health Insurance of Peru (EsSalud). Objective: Provide evidence-based clinical recommendations for the treatment of patients with pulpal and periapical lesions in EsSalud. Methods: A guideline development group (GEG) was formed that included dental surgeons, specialists, and methodologists. The GEG formulated five clinical questions to be answered in this CPG. Systematic searches of systematic reviews and -when considered pertinent- primary studies were carried out in PubMed and CENTRAL during the years 2020-2021. The evidence was selected to answer each of the clinical questions posed. Evidence was selected to answer each of the clinical questions posed. The certainty of the evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology. In periodic work meetings, the GEG used the GRADE methodology to review the evidence and formulate the recommendations, the points of good clinical practice, and the treatment flowchart. Finally, the CPG was approved with Resolution No. 085-IETSI-ESSALUD-2021. Results: This CPG addressed five clinical questions about the management of pulpal and periapical lesions. Based on these questions, four strong recommendations, two conditional recommendations, 9 points of good clinical practice, and a flowchart were formulated. Conclusion: This article summarizes the methodology and evidence-based conclusions of the CPG for the treatment of pulpal and periapical lesions in EsSalud.Introducción: El presente artículo resume las recomendaciones basadas en evidencias de la guía de práctica clínica (GPC) para el tratamiento de los pacientes con lesiones pulpares y periapicales en el Seguro Social de Salud del Perú (EsSalud). Objetivo: Brindar recomendaciones clínicas basadas en evidencia para el tratamiento de pacientes con lesiones pulpares y periapicales en EsSalud. Métodos: Se conformó un grupo elaborador de la guía (GEG) que incluyó cirujanos dentistas, especialistas y metodólogos. El GEG formuló cinco preguntas clínicas a ser respondidas en la presente GPC. Se realizó búsquedas sistemáticas de revisiones sistemáticas y –cuando fue considerado pertinente– estudios primarios en PubMed y CENTRAL durante los años 2020-2021. Se seleccionó la evidencia para responder cada una de las preguntas clínicas planteadas. La certeza de la evidencia fue evaluada usando la metodología Grading of Recommendations Assessment, Development, and Evaluation (GRADE). En reuniones de trabajo periódicas, el GEG usó la metodología GRADE para revisar la evidencia y formular las recomendaciones, los puntos de buena práctica clínica y el flujograma de tratamiento. Finalmente, la GPC fue aprobada con Resolución N° 085–IETSI-ESSALUD-2021. Resultados: La presente GPC abordó cinco preguntas clínicas sobre el manejo de las lesiones pulpares y periapicales. En base a dichas preguntas se formularon cuatro recomendaciones fuertes, dos recomendaciones condicionales, 9 puntos de buena práctica clínica, y un flujograma. Conclusión: El presente artículo resume la metodología y las conclusiones basadas en evidencias de la GPC para el tratamiento de las lesiones pulpares y periapicales en EsSalud

Guía de práctica clínica para el tamizaje, diagnóstico y tratamiento inicial de cáncer de próstata localizado y localmente avanzado en el Seguro Social del Perú (EsSalud)

Background: This article summarizes the clinical practice guide (CPG) for the screening, diagnosis, and initial treatment of localized and locally advanced prostate cancer in the Social Security of Peru (EsSalud). Objective: To provide evidence-based clinical recommendations for the screening, diagnosis, and initial treatment of adults with localized and locally advanced prostate cancer in EsSalud. Methods: A guideline development group (GDG) was formed, which included specialist physicians and methodologists, who formulated clinical questions. Systematic searches of systematic reviews were conducted and - when deemed relevant - primary studies in PubMed during 2020 and 2021. Evidence was selected to answer each of the proposed clinical questions. The certainty of evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology. In periodic working meetings, the GEG used the GRADE methodology to review the evidence and formulate recommendations. The CPG was reviewed by external experts before its approval. Results: The CPG addressed 06 clinical questions, divided into 03 topics: screening, diagnosis, and initial treatment. Based on these questions, 08 recommendations were formulated (04 strong and 04 conditional), 10 points of good clinical practice, and 04 flow charts. Conclusion: Evidence-based recommendations were issued for the management of patients with this pathology.Introducción: El presente artículo resume la guía de práctica clínica (GPC) para el tamizaje, diagnóstico, y tratamiento inicial del cáncer de próstata localizado y localmente avanzado en el Seguro Social del Perú (EsSalud). Objetivo: Proveer recomendaciones clínicas basadas en evidencia para el tamizaje, diagnóstico, y tratamiento inicial de adultos con cáncer de próstata localizado y localmente avanzado en EsSalud. Material y Métodos: Se conformó un grupo elaborador de la guía (GEG) que incluyó médicos especialistas y metodólogos, el cual formuló preguntas clínicas. Se realizaron búsquedas sistemáticas de revisiones sistemáticas y –cuando fue considerado pertinente– estudios primarios en PubMed durante el 2020 y 2021. Se seleccionó la evidencia para responder cada una de las preguntas clínicas planteadas. Se evaluó la certeza de evidencia usando la metodología Grading of Recommendations Assessment, Development, and Evaluation (GRADE). En reuniones de trabajo periódicas, el GEG usó la metodología GRADE para revisar la evidencia y formular las recomendaciones. La GPC fue revisada por expertos externos antes de su aprobación. Resultados: La GPC abordó 06 preguntas clínicas, divididas en 03 temas: tamizaje, diagnóstico, y tratamiento inicial. En base a dichas preguntas se formularon 08 recomendaciones (04 fuertes y 04 condicionales), 10 puntos de buena práctica clínica, y 04 flujogramas. Conclusión: Se emitieron recomendaciones basadas en evidencia para el manejo de pacientes con esta patología.