ABSTRAC Introduction: The Skin Picking Impact Scale (SPIS) is a self-report rating scale that assess the psychosocial impact of excoriation disorder. In this study the SPIS was translated into Spanish and its reliability was measured. Similarly, its short version (SPIS-S) has been translated and tested. Methodology: The recruitment has been performed through a survey launched on social media. All subjects were older than18 years and self-reported being diagnosed with an excoriation disorder. 281 individuals were rated for the validation analysis. SPIS has been translated into Spanish and validated through an exploratory and confirmatory factorial analysis. Participants have been also scored with the Skin Picking Scale-Revised (SPS-R). Results: On factor at the exploratory factorial analysis has a raw eigenvalue greater than 1, with 65.5% of total variance. The confirmatory analysis confirmed that the scale is one-dimensional. Cronbach’s alpha also confirmed a good internal consistency (α=0.934 for the SPIS and α=0.882 for the SPIS-S). Scores between the two scales (SPIS and the SPS-R) have shown a good convergence (r=0.592, p<0.0001). Conclusion: The Spanish version of SPIS and its short version show good psychometric properties and adequately reproduce the one-dimensional model of the original English version.

RESUMEN Introducción: la Skin Picking Impact Scale (SPIS) es una escala autoaplicada de que evalúa el impacto psicosocial del trastorno de excoriación. En este estudio se tradujo la SPIS al español y se midió su confiabilidad. Asimismo, se tradujo y se evalúo su versión corta (SPIS-S). Metodología: el reclutamiento se realizó a través de una encuesta distribuida a través de redes sociales. Todos los sujetos participantes fueron mayores de 18 años e informaron haber sido diagnosticados con trastorno de excoriación. 281 individuos calificaron para el análisis de validación. La SPIS fue traducida al español y validada a través de análisis factorial exploratorio y análisis factorial confirmatorio. Los participantes también fueron evaluados con la versión revisada de la Skin Picking Scale - Revised (SPS-R). Resultados: en el análisis factorial exploratorio, un valor tenía un valor propio bruto mayor que 1, con 65,5 % de la varianza total. El análisis confirmatorio determinó que la escala es unidimensional. El alfa de Cronbach también confirmó una buena consistencia interna (α = 0,934 para la SPIS y α = 0,882 para la SPIS-S). Las puntuaciones entre las dos escalas (SPIS y SPS-R) mostraron una buena convergencia (r = 0,592, p <0,0001). Conclusión: la versión en español de la SPIS y de su versión abreviada muestran buenas propiedades psicométricas y reproducen adecuadamente el modelo unidimensional de la versión original en inglés.

The reaction of 3,5-bis(bromomethyl)toluene with benzotriazole yields the bidentate ligand 3,5-bis(benzotriazol-1-ylmethyl)toluene (1). This ligand reacts with [PdCl2(cod)] (cod = 1,5-cyclooctadiene) to give the complex [PdCl2{3,5-bis(benzotriazol-1-ylmethyl)tolyl}] (2). These compounds were characterized by elemental analyses, mass spectra, and FTIR and NMR (¹H, 13C) spectroscopies. The palladium(II) complex 2 shows high activity as catalyst for oxidative amination, involving allyl butyl ether and phthalimide as substrates and PhICl2 as a stoichiometric oxidant.

A reação de 2-bromo-1, 3-bis(bromometil)benzeno com 3, 5-dimetilpirazol e 1H-indazol produz os ligantes tridentados 2-bromo-1, 3-bis(3, 5-dimetilpirazol-1-ilmetil)benzeno (1) e 2-bromo-1, 3-bis(indazol-2-ilmetil)benzeno (2). Estes compostos reagem com [Ni(cod)2] em tetraidrofurano (thf) para formar os complexos de adição oxidativa [NiBr{1, 3-bis(azolilmetil)fenil-N, C, N}], azol = 3, 5-dimetilpirazol (3) e indazol (4), os quais foram isolados em bons rendimentos como sólidos amarelos estáveis e caracterizados por meio de análise elementar, espectroscopia de absorção no infravermelho com transformada de Fourier (FTIR), espectrometria de massa e ressonância magnética nuclear (NMR). Adicionalmente, as estruturas moleculares de 2 e 4 foram determinadas por difratometria de raios X de monocristal. O complexo 4 foi testado como catalisador na reação de polimerização de etileno

The reaction of 2-bromo-1, 3-bis(bromomethyl)benzene with 3, 5-dimethylpyrazole and 1H-indazole yields the tridentate ligands 2-bromo-1, 3-bis(3, 5-dimethylpirazol-1-ylmethyl)benzene (1) and 2-bromo-1, 3-bis(indazol-2-ylmethyl)benzene (2). These compounds react with [Ni(cod)2] in tetrahydrofuran (thf) to form the oxidative addition complexes [NiBr{1, 3-bis(azolylmethyl)phenyl-N, C, N}], azol = 3, 5-dimethylpyrazol (3), indazol (4), which were isolated in good yields as stable yellow solids and characterized by elemental analysis, Fourier-transform infrared spectroscopy (FTIR), mass spectroscopy and nuclear magnetic resonance (NMR). In addition, the molecular structures of 2 and 4 were determined by single-crystal X-ray diffraction analysis. Complex 4 was tested as a catalyst in ethylene polymerization reaction

The use of ultrasound in the evaluation of musculoskeletal diseases has grown rapidly due to its ability to identify soft tissues and because it offers the possibility to perform dynamic studies in real time. It has 2 main indications in the infant hip, acetabular dysplasia and articular effusions. In this article we present the normal anatomy in infant hip as seen with ultrasound and we compare it to the conventional pelvic radiography. We show some examples of acetabular dysplasia and we propose a dynamic technique to help assess stability problems.

El uso del ultrasonido para la valoración de las enfermedades del sistema músculo esquelético se ha extendido rápidamente debido a su capacidad para identificar los tejidos blandos y porque ofrece la posibilidad de realizar estudios dinámicos en tiempo real. En la cadera infantil, el ultrasonido tiene 2 indicaciones principales, que son: el estudio de la displasia acetabular y la búsqueda de colecciones intraarticulares. En este artículo se presenta la anatomía normal de la cadera infantil vista con ultrasonido y se compara con la radiografía pélvica convencional, se muestran ejemplos de pacientes con displasia acetabular, y se propone una técnica dinámica que puede ayudar a detectar problemas de estabilidad.

Background: The most common type of oral cancer is squamous cell carcinoma, which accounts for approximately 90% of all oral malignancies. Therefore the oral cancer problem primarily concerns the diagnosis, biology and management of squamous cell carcinoma (SCC). However, there are red and white lesions, that are considered premalignant, since they may unpredictably transform into cancer. According to WHO, leukoplakia, eritroplakia and actinic cheilitis are considered precancerous lesions which pathologically may correspond to intraepithelial dysplasia, hyperkeratosis, carcinoma in situ or SCC. Aim: To study the clinical and pathological features of lip cancer and premalignant lip lesions. Patients and methods: A retrospective analysis of 232 cases with lip lesions. The frequency, location, gender, age and pathological diagnosis of the lesions were recorded. Results: One hundred fifty four lesions were observed in men and 78 in women, 92% of lesions were located in the lower lip. Seventy two of the 232 lesions were SCC and 72% of these carcinomas were well differentiated. The age of patients with cancer was higher than that of patients with precancerous lesions. Conclusions: The difference in age between patients with cancer and precancerous lesions, reinforces the existing knowledge that precancerous lesions may transform into cancer if they are not properly diagnosed and treated (Rev Méd Chile 2003; 131: 60-6)