Frontal Fibrosing Alopecia: A Review

This article is part of the Ph.D. thesis of María Librada Porriño-Bustamante.Frontal fibrosing alopecia is a scarring alopecia, the prevalence of which is increasing worldwide since its first description in 1994. The reason for this emerging epidemic may be a higher exposure to an unknown trigger, although its aethiology and pathogenesis still remain enigmatic. Clinical, trichoscopic, sonographic, and histopathologic findings are allowing clinicians to understand more aspects about this type of cicatricial alopecia. Several treatments have been used in frontal fibrosing alopecia, although the 5-alpha reductase inhibitors seem to be the most promising. The aim of this report is to provide a compilation about the published data regarding frontal fibrosing alopecia in a narrative review

Homens e cuidado infantil: estudo de casos em Salvador, Bahia / Men and child care: a case study in Salvador, Bahia, Brasil

Abordou-se a participação masculina no cuidado infantil, entre homens de diversos setores socioeconômicos em Salvador (Bahia) Brasil, com base na discussão sobre o conceito de Cuidado sob o enfoque de gênero. Os dados coletados por meio de entrevistas narrativas foram analisados com a técnica de análise de conteúdo temática. Os resultados, com algumas nuances, indicam que a participação masculina no cotidiano do cuidado infantil − incluindo o contato com serviços de saúde − se dá como “ajuda” e predominantemente em momentos em que inexistem outras pessoas para cuidar, o que evidencia a reprodução de papéis de gênero convencionais e permanência da divisão sexual do trabalho. Em paralelo, os participantes têm um vínculo afetivo com a criança e participam no cuidado infantil como processo de construção social da pessoa. Ressalta-se as semelhanças entre os participantes, apesar das diferenças socioeconômicas

Ftalatos y efectos en la salud

Los plastificantes son aditivos que se mezclan con algunos plásticos, especialmente con cloruro de polivinilo (CPV) para incrementar su elasticidad. Los plastificantes de uso más común son los derivados del ácido ftálico o ftalatos. Sin embargo, al no estar químicamente ligados a la matriz plástica, los ftalatos pueden abandonar el material y provocar daños a la salud y al ambiente. Aunque, es importante considerar que actualmente no existe evidencia clara sobre su toxicidad en seres humanos, en este artículo se presenta una revisión sobre la utilización y el riesgo en el empleo de ftalatos. Se discuten también las evidencias presentadas sobre su toxicidad y con base en lo anterior se recomienda investigar la magnitud de este problema en México, país productor de PCV plastificado

Frontal Fibrosing Alopecia and Sunscreen Use: A Cross-sectional Study of Actinic Damage

Patients with frontal fibrosing alopecia report higher rates of sunscreen use than control subjects. However, it is not known whether the higher use of sunscreens is a cause or a consequence of the alopecia. A greater use of sunscreens should be associated with a lower incidence of signs of actinic damage. The aim of this study is to assess the presence of actinic damage in patients with frontal fibrosing alopecia. A cross-sectional study was carried out on 101 patients with frontal fibrosing alopecia and 40 control subjects. The presence of actinic damage, in the form of solar lentigines, actinic keratoses, and basal and squamous cell carcinomas, was recorded in both groups, together with sunscreen use. Trichoscopy and skin biopsy were performed on patients. Actinic damage was present more frequently in patients with frontal fibrosing alopecia (69.3%) than in control subjects (50%) (p = 0.031). Patients used sunscreens more frequently than did control subjects (83.2% vs 62.5%, p = 0.008). However, the prevalence of trichoscopic inflammatory signs, peripheral alopecia, and inflammatory infiltrate and sebaceous gland involvement in skin biopsy, were similar in patients who used sunscreens and those who did not use them. In conclusion, patients with frontal fibrosing alopecia had greater actinic damage than did control subjects, and this is hypothesized as a reason for the higher use of sunscreens among patients. Thus, use of sunscreens may not be the trigger for frontal fibrosing alopecia that dermatologists have proposed

Frontal Fibrosing Alopecia: A Histopathological Comparison of the Frontal Hairline with Normal-Appearing Scalp

Frontal fibrosing alopecia is characterized by the presence of a lymphocytic inflammatory infiltrate around the upper follicle and by perifollicular fibrosis, which results in the destruction of the hair follicle. Recent reports have also found the presence of those findings in clinically unaffected areas. The aim of this report is to perform a deeper analysis of the histopathological features of this apparently unaffected scalp. A cross-sectional study including 52 women with frontal fibrosing alopecia was performed. Two areas were biopsied: the frontal hairline and a normal-appearing scalp area. Sebaceous glands were reduced/absent in 80.8% of the frontal hairline samples compared to 42.3% of the “healthy scalp” samples (p = 0.001). Inflammatory infiltrate was observed in 92.3% of patients in the frontal hairline and in 86.5% of them in the “healthy scalp” area (p = 0.508), although the severity was higher in the former (p = 0.013). Follicular epithelium changes were seen in 70.6% of the frontal hairline biopsies compared to 48.1% of the “healthy scalp” biopsies (p = 0.012). Fibrous tissular changes were noted in 80.8% and 53.8% of the frontal hairline and “healthy scalp” biopsies, respectively (p = 0.003). In conclusion, the histopathological features of frontal fibrosing alopecia are shared by both affected and clinically unaffected areas

PROGRAMA DE INTELIGENCIA EMOCIONAL PARA LA REDUCCIÓN DE CONDUCTAS DE BULLYING

La aplicación del programa de inteligencia emocional para reducir las conductas de bullying fue efectivo, se trabajó con 32 alumnos de sexo masculino, entre los 13 y 15 años en la institución educativa “Claretiano” de la ciudad de Arequipa. Este es un estudio cuasi-experimental, pretest y postest del grupo seleccionado. Se aplicaron dos cuestionarios para identificar las conductas bullying de elaboración propia uno para profesores y otro para alumnos, con los cuales se pudo encontrar a los alumnos con conductas bullying para incorporarlos al programa, realizar el postest y el seguimiento respectivo del programa. Se logró en el grupo seleccionado del colegio “Claretiano” una reducción significativa en las conductas bullying. Por último se pudo comprobar la efectividad del programa en los alumnos seleccionados

What do dermatologists and dermatology residents think about their residency training in dermatology?

IntroductionIn Spain, graduates in medicine take a state exam which, depending on their result, enables them choose a speciality in a specific hospital. Becoming a specialist in dermatology involves 4 years of training in a hospital. The content of the speciality is government regulated, although it can vary slightly in different hospitals. Feedback about this training period could provide key information to improve any failings. The aim of the study was to evaluate the perspectives of dermatologists and dermatology residents toward residency training.Materials and methodsResident dermatologists in their final 2 years and recently qualified dermatologists answered a survey regarding the residency, and personal perspectives and objectives within dermatology.ResultsA total of 54 participants answered the survey. Their mean age was 29.26 years old. Around 74% of them had had at least 3 clinical sessions per week during their residency and 87% of them considered these clinical sessions to have been useful for their training. The main shortcomings in their training were perceived as laser and esthetics, followed by trichology then research and contact dermatitis. However, 85.2% of them had done external rotations to progress in the areas they felt they needed to improve. Around 55% of the participants had considered specializing in research. Regarding research doctorates, 20.4% were doing their PhD or had already finished it, and of the remaining, 62.79% were interested in doing one.ConclusionThe opinions, feelings and aspirations of the dermatology residents are an important barometer for the future of the speciality. Training in research, laser and esthetics was perceived as a weakness by the participants, while clinical sessions and external rotations were considered good for their training. The information from this survey establishes a reference point from which present needs and future trends can be gauged

Desarrollo de habilidades pedagógicas para gestionar procesos de aprendizaje en ambientes virtuales

El presente trabajo de posgrado tuvo como fin determinar si, los procesos de aprendizaje en ambientes virtuales son determinados por las habilidades pedagógicas de los docentes del Colegio Josefino del municipio de Ahuachapán, departamento de Ahuachapán en el año lectivo 202

Gestion de recursos humanos, un enfoque hacia el desarrollo organizacional, estudio de casos

136 p.El propósito de la presente investigación es evaluar Ios estilos de gestión de recursos humanos aplicados en un proyecto de cambio organizacional en cinco empresas de la comuna de Talca. Los objetivos propuestos para ello, son en resumen: Identificar los estilos de gestión de recursos humanos y las variables relevantes que caracterizan a cada estilo desde el punto de vista de éxito o fracaso del proyecto de cambio; identificar las características de las distintas estructuras organizacionales y en base a ellas, seleccionar los casos a estudiar, y finalmente, desarrollar un instrumento de evaluación de los estilos de gestión de recursos humanos ante procesos de cambia y aplicarlo a los casos seleccionados. La metodología utilizada en la definición de variables de los estilos de gestión y de características de estructuras organizacionales, corresponde esencialmente a una exhaustiva revisión bibliográfica y posteriormente, para la investigación empírica, se utilizan la elaboración de criterios de selección de los casos, la elaboración de cuestionarios y de entrevistas, que permitirán obtener información que será procesada, interpretada y analizada por los investigadores. El estudio permitió obtener evidencias de una tendencia generalizada en los casos analizados, de implementar Lm estilo de gestión de recursos humanos de tipo racionalista en los proyectos de cambio organizacional. Los Gerentes y Directivos creen que la mejor forma de llevar a cabo estos proyectos, es a través de técnicas de persuasión e imposición aplicadas una vez que los cambios están siendo implementados de modo de no tener que enfrentar conflictos en las etapas iniciales del proyecto. Al no haber una integración entre los ejecutivos y el personal en la implementación del proyecto, existe escaso compromiso de la gente con los resultados de este, e incluso se genera mayor resistencia de parte de los involucrados y por lo tanto se enfrentan diversos problemas en las distintas etapas de dicha implementación

Measurement and Numerical Simulation of Air Velocity in a Tunnel-Ventilated Broiler House

A building needs to be designed for the whole period of its useful life according to its requirements. However, future climate predictions involve some uncertainty. Thus, several sustainable strategies of adaptation need to be incorporated after the initial design. In this sense, tunnel ventilation in broiler houses provides high air velocity values (2-3 m center dot s(-1)) at animal level to diminish their thermal stress and associated mortality. This ventilation system was experimentally incorporated into a Mediterranean climate. The aim was to resolve these thermal problems in hot seasons, as (traditional) cross-mechanical ventilation does not provide enough air velocity values. Surprisingly, very little information on tunnel ventilation systems is available, especially in terms of air velocity. Using Computational Fluid Dynamics (CFD) and a multi-sensor system, the average results are similar (at animal level: 1.59 +/- 0.68 m center dot s(-1) for CFD and 1.55 +/- 0.66 m center dot s(-1) for measurements). The ANOVA for validation concluded that the use of CFD or measurements is not significant (p-value = 0.1155). Nevertheless, some problems with air velocity distribution were found and need to be solved. To this end, CFD techniques can help by means of virtual designs and scenarios providing information for the whole indoor space.This work was funded by the project GV04B-511 (Generalitat Valenciana, Spain) and by the Vicerrectorado of Investigacion of the Universitat Politecnica de Valencia (Programa de Apoyo a la Investigacion y Desarrollo Multidisciplinar Project PAID register 2614).Bustamante García, E.; García Diego, FJ.; Calvet Sanz, S.; Torres Salvador, AG.; Hospitaler Pérez, A. (2015). 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