The instinctive tendency to manipulate the skin and its small imperfections is a normal part of body-focused repetitive behaviors. When this behavior increases without control and causes somatic and psychic damage to the individual, we are dealing with a case of Excoriative Disorder (ET), a pathology that has been included in the International Classification of Diseases (ICD-11), and that, in the Classification American Mental Disorders, is part of the disorders related to the obsessive-compulsive disorder. In adults, the lifetime prevalence of ET ranges between 3 and 5% and presents high comorbidities with affective problems, substance use and morbid personality traits. Although it is not apparently a severe pathology, it causes significant disability and requires systematic screening due to its frequent avoidance by both the affected patient and health professionals.

Se comparó la función visual de dos aves terrestres Charadriiformes: la dara (Burhinus bistriatusWagler 1829), de hábitos de crepusculares y nocturnos, y el alcaraván (Vanellus chilensis L. 1758), primordialmente diurnos y ocasionalmente nocturnos, utilizando electrorretinogramas (ERG), mediante análisis morfológicos y electrofisiológicos de sus retinas. Dado que las daras tienen los ojos relativamente más grandes y mayor actividad nocturna que los alcaravanes se esperarían que tuvieran una retina más sensible bajo condiciones de escasa iluminación. Las aves fueron anestesiadas para obtener los electrorretinogramas bajo condiciones escotópicas y fotópicas y luego sacrificadas para el análisis histológico de la retina. A todas las intensidades luminosas probadas, las ondas b escotópicas fueron siempre de mayor amplitud en B. bistriatus que en V. chilensis; no obstante, la ...

The estimation of precipitation over the broad range of scales of interest for climatologists, meteorologists and hydrologists is challenging at high altitudes of tropical regions, where the spatial variability of precipitation is important while in situ measurements remain scarce largely due to operational constraints. Three different types of rainfall products – ground based (kriging interpolation), satellite derived (TRMM3B42), and atmospheric model outputs (WRF – Weather Research and Forecasting) – are compared for 1 hydrological year in order to retrieve rainfall patterns at timescales ranging from sub-daily to annual over a watershed of approximately 10 000 km² in Peru. An ensemble of three different spatial resolutions is considered for the comparison (27, 9 and 3 km), as long as well as a range of timescales (annual totals, daily rainfall patterns, diurnal cycle). WR...

Filiación institucional de autor: Alejo Cochachín Rapre /Autoridad Nacional del Agua - Unidad de Glaciología y Recursos Hídricos (ANA-UGRH), Huaraz, Peru