Prevalencia de síntomas osteomusculares en trabajadores de un colegio privado de Cali, Colombia.

Work related Musculoskeletal disorders (MSD) are increasingly common worldwide and are the leading cause of occupational morbidity in Colombia. Determining the prevalence of musculoskeletal symptoms in workers is important in order to develop strategies that prevent and reduce their occurrence. Objective: Determine the prevalence of musculoskeletal symptoms (MES) among workers in a private school in Cali, Colombia. Methodology: A descriptive observational study was conducted in 114 workers of a private school in Cali. Sociodemographic data were collected. MES were surveyed with Nordic Questionnaire. Frequencies were compared with X2 test, considering a 0,05 alpha. Results: MES were detected in 73.7% of the participants and 66.7% reported MES in two or more areas with the highest prevalence in spine and lower limbs (39.3%). The prevalence of pain was significantly more frequent in women (P = 0.004). The work group that reported more MES was teachers followed by transportation, and maintenance workers. Conclusions: The prevalence of MES is high among teachers, especially in women. It is important to design strategies in order to reduce their frequency and determine the work related causes and those outside of work.Los desórdenes musculoesqueléticos (DME) relacionados con el trabajo son cada vez más frecuentes en el mundo y actualmente constituyen la primera causa de morbilidad profesional en Colombia. Es importante determinar la prevalencia de síntomas osteomusculares (SOM) en los trabajadores y desarrollar estrategias con el fin de prevenir su ocurrencia. Objetivo:  Determinar la prevalencia de SOM en los trabajadores de un Colegio privado de la ciudad de Cali, Colombia. Metodología: Estudio observacional, descriptivo, realizado en 114 trabajadores de una institución educativa privada. Se recolectaron datos sociodemográficos y laborales a través de una encuesta y se utilizó el Cuestionario Nórdico para el análisis de SOM. Se compararon frecuencias con el test de X2, considerando 0,05 como error alfa. Resultados: El 73.7% de los entrevistados refirieron SOM y de estos el 66.7% refirió dolor en dos o más zonas, con mayor prevalencia en columna y miembros inferiores (39.3%). La prevalencia de dolor fue más frecuente en mujeres que en hombres (P=0.004). El grupo que más reportó SOM fueron los docentes, seguidos por los empleados de transporte y de mantenimiento. Conclusiones: La prevalencia de SOM en docentes es alta, siendo las mujeres las más afectadas. Es importante implementar medidas para disminuir la aparición de SOM, particularmente en columna y miembros inferiores, así como determinar las causas laborales y extralaborales

Impact of Controlling the Site Distribution of Al Atoms on Catalytic Properties in Ferrierite-Type Zeolites

Zeolites with the ferrierite (FER) topology are synthesized using a combination of tetramethylammonium (TMA) cations with differently sized cyclic amines (pyrrolidine (Pyr), hexamethyleneimine (HMI), and 1,4- diazabicyclo[2.2.2]octane (DAB)). Using these organic structure-directing agents (SDAs), low Si/Al ratios and concentrated synthesis mixtures favor the crystallization of FER materials. Increasing the size of the cyclic amine or decreasing the aluminum content leads to the crystallization of other phases or the creation of excessive amounts of connectivity defects. TMA cations play a decisive role in the synthesis of the FER materials, and their presence allows the use of HMI to synthesize FER. Proton MAS NMR is used to quantify the accessibility of pyridine to acid sites in these FER samples, where it is found that the FER + HMI + TMA sample contains only 27% acid sites in the 8-MR channels, whereas FER + Pyr and FER + Pyr + TMA contain 89% and 84%, respectively. The constraint index (CI) test and the carbonylation of dimethyl ether (DME) with carbon monoxide are used as probe reactions to evaluate how changes in the aluminum distribution in these FER samples affect their catalytic behavior. Results show that the use of Pyr as an SDA results in the selective population of acid sites in the 8-MR channels, whereas the use of HMI generates FER zeolites with an increased concentration of acid sites in the 10-MR channels

Isolation of VIM-2-producing Pseudomonas monteilii clinical strains disseminated in a tertiary hospital in northern Spain

We describe here the occurrence of blaVIM-2 in 10 carbapenem-resistant Pseudomonas monteilii strains isolated from different clinical samples from patients at the University Hospital Marqués de Valdecilla in northern Spain. All the blaVIM-2-harboring P. monteilii isolates possessed a class 1 integron, with the cassette array [intI1_blaVIM-2_aac(6')-Ib_qacEΔ1_sul1]. Our results show the emergence of VIM-2-producing multidrug-resistant species other than Pseudomonas aeruginosa or Pseudomonas putida in a Spanish hospital. P. monteilii, although sporadically isolated, should also be considered an important metallo-β-lactamase (MBL) reservoir

Geochemical Analysis of Ronda Peridotite: Insights into Martian Analogues and Alteration Processes.

In the context of the geochemical characterization of potential Martian analogues on Earth, a peridotite sample from Serranía de Ronda (Málaga, Spain) was analyzed. The peridotites of Ronda are distinguished by the prevalent presence of magnesium-rich minerals, notably olivine and pyroxenes (orthopyroxenes and clinopyroxenes), and their association with igneous rocks of basaltic composition. In addition, this sample is particularly relevant due to its susceptibility to carbonation, serpentinization, and other alteration processes induced by hyperalkaline fluids it may come into contact with. Likewise, the phenomenon of serpentinization not only initiates a cascade of chemical reactions capable of yielding complex organic molecules but also it establishes distinctive geochemical conditions conducive to microbial life. This study was focused on the geochemical analysis of the interest sample with of three spectroscopic techniques: laser-induced breakdown spectroscopy (LIBS), micro–energy dispersive X-ray fluorescence (µ-EDXRF), and Raman spectroscopy, all these integrated within the SuperCam instrument aboard the Perseverance rover. The elemental composition can provide information about the spatial distribution of hydrothermally altered rocks. Two-dimensional maps were generated for major (Figure 1) and minor elements, from LIBS and μ-EDXRF spectral data. Ratios normally used in the identification of mineral phases present in peridotites, such as olivine and chromites, were also calculated. These data were confirmed from Raman spectra. Finally, regions in the sample with similar spectroscopic characteristics were identified by K-means analysis. The results indicated that certain regions in the sample exhibit a high proportion of chromium and iron, which may suggest the potential presence of spinels such as chromite and other associated minerals.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Signatures of selection for bonamiosis resistance in European flat oyster (Ostrea edulis): New genomic tools for breeding programs and management of natural resources

The European flat oyster (Ostrea edulis) is a highly appreciated mollusk with an important aquaculture production throughout the 20th century, in addition to playing an important role on coastal ecosystems. Overexploitation of natural beds, habitat degradation, introduction of non‐native species, and epidemic outbreaks have severely affected this important resource, particularly, the protozoan parasite Bonamia ostreae, which is the main concern affecting its production and conservation. In order to identify genomic regions and markers potentially associated with bonamiosis resistance, six oyster beds distributed throughout the European Atlantic coast were sampled. Three of them have been exposed to this parasite since the early 1980s and showed some degree of innate resistance (long‐term affected group, LTA), while the other three were free of B. ostreae at least until sampling date (naïve group, NV). A total of 14,065 SNPs were analyzed, including 37 markers from candidate genes and 14,028 from a medium‐density SNP array. Gene diversity was similar between LTA and NV groups suggesting no genetic erosion due to long‐term exposure to the parasite, and three population clusters were detected using the whole dataset. Tests for divergent selection between NV and LTA groups detected the presence of a very consistent set of 22 markers, located within a putative single genomic region, which suggests the presence of a major quantitative trait locus associated with B. ostreae resistance. Moreover, 324 outlier loci associated with factors other than bonamiosis were identified allowing fully discrimination of all the oyster beds. A practical tool which included the 84 highest discriminative markers for tracing O. edulis populations was developed and tested with empirical data. Results reported herein could assist the production of stocks with improved resistance to bonamiosis and facilitate the management of oyster beds for recovery production and ecosystem services provided by this species.This work was funded by the OYSTERECOVER project (FP7‐SME‐2008‐2‐243583) from the European Community's Seventh Framework Programme, the European Regional Development's funds (FEDER), and Xunta de Galicia local government (GRC2014/010, R2014/046). The development and provision of the medium‐density SNP array for oysters was supported by Biotechnology and Biological Sciences Research Council (BBSRC), and National Environment Research Council (NERC) grants (BB/M026140/1, NE/P010695/1), in addition to BBSRC Institute Strategic Program Grants (BBS/E/D/20002172 and BBS/E/D/30002275)S

Automatic Application of the Category-Partition Method with Loops Support over Functional Requirements

Con este artículo se amplían trabajos anteriores, para la generación de pruebas a partir de casos de usos mediante un proceso automático generando así los objetivos de prueba. Se aplica para tal fin el método de Categoría – Partición, y el Patrón Extendido de Casos de Usos, sin embargo esta vez se apunta a los casos de usos que presentan bucles.This paper extends previous works about the automatic generation of test cases. The start point id the Category-Partition method and the extended use case pattern. This paper describes the automatism of both techniques and extends them to manage loops in use cases.Ministerio de Ciencia y Educación TIN207- 67843-C06-03Ministerio de Ciencia y Educación TIN2005-24792-

Parallel evolutionary biclustering of short-term electric energy consumption

Presentación realizada en el marco del Proyecto PINV18-661: Análisis de la eficiencia energética en edificios no residenciales mediante técnicas metaheurísticas y de inteligencia artificial.CONACYT - Consejo Nacional de Ciencias y TecnologíaPROCIENCI

Integración de dispositivos de salud personal en la plataforma de telecuidado para diabetes PERSONA

La plataforma de telecuidado PERSONA se ha desarrollado en el marco del CIBER-BBN y tiene por objetivo soportar el autocuidado diario de pacientes con diabetes tipo 1. La plataforma proporciona acceso a herramientas de soporte a la decisión, de procesado automático de la información, de monitorización de las variables que afectan a la enfermedad y facilita la comunicación entre los agentes involucrados en el cuidado del paciente. La integración de dispositivos médicos interoperables es un requisito principal de la plataforma PERSONA. En este trabajo presentamos las soluciones adoptadas en cuanto a la integración de dispositivos médicos y analizamos las características de los protocolos de comunicación inalámbrica de los dispositivos considerados y los recursos necesarios para la comunicación con dispositivos móviles de telefonía

Redundancy Is Not Necessarily Detrimental in Classification Problems

In feature selection, redundancy is one of the major concerns since the removal of redun dancy in data is connected with dimensionality reduction. Despite the evidence of such a connection, few works present theoretical studies regarding redundancy. In this work, we analyze the effect of redundant features on the performance of classification models. We can summarize the contribution of this work as follows: (i) develop a theoretical framework to analyze feature construction and selection, (ii) show that certain properly defined features are redundant but make the data linearly separable, and (iii) propose a formal criterion to validate feature construction methods. The results of experiments suggest that a large number of redundant features can reduce the classification error. The results imply that it is not enough to analyze features solely using criteria that measure the amount of information provided by such features.CONACYT - Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Management of a ruptured epidural catheter, an anesthesiologist's dilemma: a case report

Epidural anesthesia is a widely used anesthetic technique in lower extremity surgeries although it is a relatively safe procedure, it can have complications, such as rupture of the epidural catheter. This is a 69-year-old male patient with a diagnosis of Wagner IV diabetic foot is presented, which was scheduled for left supracondylar amputation in which after epidural block, retention of the catheter tip in the epidural space at level L2-L3 was seen, so hemi laminectomy was performed in a second surgical stage in L2 and removal of the epidural catheter. Ideally a broken needle should be removed as soon as possible