La reforma del artículo 44 del Estatuto de los Trabajadores operada por la Ley 12/2001, de 9 de julio

El presente trabajo pretende reflejar cómo se ha llevado a cabo la transposición del derecho comunitario en materia de «sucesión de empresa» por el Estado español, cómo ha quedado regulada esta materia tras la reforma operada por la Ley 12/2001, y pretende resaltar, entre otras cuestiones, algunos problemas no resueltos con la nueva redacción dada al artículo 44 del TRET

Reducing techno-anxiety in high school teachers by improving their ICT problem-solving skills

Teachers need to continuously update their information and communication technologies (ICT) knowledge, but they are usually not trained to deal with the problems arising from their use. In fact, studies in the literature report techno-anxiety (i.e. unpleasant physiological activation and discomfort due to present or future use of ICT) in teachers. Thus, the goal of this action research is to study if teachers’ techno-anxiety can be reduced by increasing their ability to solve technological problems. An inter-subject experiment has been carried out with 46 teachers. High school teachers were chosen because they are digital immigrants, while at the moment of this research their students are digital natives (born around year 2000). Since we could not find any specific training for teachers to increase their resolution skills of technological problems, in order to apply the treatment for our study, we have designed and deployed an online course about ICT problem-solving skills based on the 70/20/10 model for learning and development. Results show the success of the course when it comes to increasing the ICT problem-solving skills and to reducing techno-anxiety.Preprin

Cross-cultural adaptation and psychometric evaluation of the educational content validation instrument in health.

Healthcare professionals often use multimedia patient education media, but not all have the same content quality. This study aimed to cross-culturally adapt the Educational Content Validation Instrument in Health to the Spanish setting and assess its psychometric properties. A methodological validation study was carried out between January and September 2020. Data collection took place from May to June 2020. A translation, back translation, committee review, and pre-testing was carried out. Subsequently, reliability (internal consistency), and validity (factorial and convergent) were assessed by requiring 210 Healthcare Professionals to complete the instrument based on video material. In addition, a refinement of the instrument was conducted based on the modification indexes. The instrument showed adequate internal consistency, although some redundancy in the items (α = .93). Ex ploratory factor analysis suggested a unifactorial structure that explained an adequate variance (47.37%). Convergent validity was poor (r = .11; P = .05). After analysis, 6 items were deleted without impairing the validity results and eliminating redundancy. Therefore, a 12-item version of the instrument was created. It can help to assess more objectively the contents of the materials prescribed, facilitating the choice of those of higher quality and potentially improving their patients’ health outcomes. Further studies are needed to confirm the previous results and reassess some of the shortcomings.Consejería de Salud , Junta de Andalucí

First records of non-indigenous Timarete caribous (Grube, 1859) (Polychaeta; Cirratulidae) in the Western Mediterranean, and its ecology in the Mar Menor (Murcia, SE Spain)

The knowledge and control of invasive species are essential in the management of marine ecosystems. The Mediterranean Sea is one of the marine areas with the highest number of invasive species detected, most of them invertebrates. On a smaller scale, colonization by non-native species in coastal lagoons depends directly on their connectivity with the adjacent sea and on the changes in their environmental conditions induced mainly by human interventions. In this study, the cirratulid species Timarete caribous Grube, 1859, native from the Western and Central Atlantic Ocean, was detected for the first time in a Western Mediterranean coastal lagoon, the Mar Menor. It has been found in dense aggregates on both artificial and natural rocky substrates, mainly in the most important communication channel with the Mediterranean Sea. Following the evolution of this NIS will be important for understanding the dynamic and spread of the species and its possible effects on the indigenous biological communitie

Evolutivitat de la capacitat flexora segons el sexe i el nivell d'ensenyament

La flexibilitat és una de les qualitats físiques bàsiques que es treballa tant en els cicles de primària com de secundària, però no en l'etapa universitària. De les quatre qualitats físiques bàsiques, la flexibilitat és l'única que minva a mesura que augmenta l'edat. Per dur a terme l'estudi es va comptar amb una mostra de 410 subjectes (42% de sexe masculí respecte del 58% de sexe femení) de 6 a 30 anys de Granada i Almeria. Es va emprar el test de flexió profunda del tronc per a la recollida de dades, tot establint que la flexibilitat mitjana de la població era de 22,25 cm. Pel que fa als sexes, les noies (X = 22,82 cm) eren més flexibles que els nois (X = 21,46 cm). Quant a l'evolutivitat, en el rang de 10 a 11 anys és quan s'aconsegueixen els valors més alts de capacitat flexora, a partir de la qual es produeix una disminució constant a mesura que augmenta l'edat cronològica dels individus, per la qual cosa el nivell d'ensenyament de primària (24,98 cm) és el que presenta pics més elevats de flexibilitat respecte dels universitaris, els qui n'obtenen els valors més baixos (19,50 cm). Finalment, s'ha determinat -igual que tota la bibliografia consultada- que la flexibilitat mitjana minva a mesura que augmenta el rang d'edat

Evolutividad de la capacidad flexora según el sexo y el nivel de enseñanza

La flexibilidad es una de las cualidades físicas básicas que se trabaja tanto en los ciclos de primaria como de secundaria, pero no en la etapa universitaria. De las cuatro cualidades físicas básicas, la flexibilidad es la única que disminuye conforme aumenta la edad. Para realizar el estudio se ha contado con una muestra de 410 sujetos (42% varones frente al 58% de mujeres) de 6 a 30 años de Granada y Almería. Se empleó el test de flexión profunda de tronco para la recogida y toma de datos, estableciendo que la flexibilidad media de la población era de 22,25 cm. De igual forma, por sexos, las chicas (X = 22,82 cm) eran más flexibles que los varones (X = 21,46 cm). En cuanto a la evolutividad, es en el rango de 10 a 11 años cuando se alcanzan los valores más altos de capacidad flexora, produciéndose una disminución constante conforme aumenta la edad cronológica de los individuos, por lo que el nivel de enseñanza de primaria (24,98 cm) es el que mayores picos de flexibilidad presenta frente a los universitarios, que son los que obtienen los valores más inferiores (19,50 cm). Finalmente, se ha determinado que al igual que toda la bibliografía consultada, la flexibilidad media disminuye conforme aumenta el rango de edad

A modified entropy-based performance criterion for class-modelling with multiple classes

The paper presents a new proposal for a single overall measure, the diagonal modified confusion entropy (DMCEN), to assess the performance of class-models jointly computed for several classes, a versatile index regarding sensitivity and specificity, and that supports class weighting. The characteristics of the proposed figure of merit are illustrated as against other usual performance measures and show how the index is more sensitive to the variations in the class-models than similar published indexes. Besides, a benchmark value representing a random modelling is also defined for DMCEN to be used as initial level to assess the quality of the built class-models. Furthermore, systematic comparisons have been conducted by using the degree of consistency C and the degree of discriminancy D when comparing the proposed DMCEN to the usual total efficiency (a geometric mean between sensitivity and specificity). Simulations show that, for a hundred thousand sensitivity/specificity matrices with four categories, C is almost 0.7 on average, well above the needed 0.5, and there is more than 62% probability that DMCEN detects differences when the total efficiency does not. Illustration of the application of the index is shown with an experimental data set with four categories.Spanish Ministerio de Ciencia, Innovaci on y Universidades (AEI) and Consejería de Educaci on de la Junta de Castilla y Le on through projects CTQ2017-88894-R and BU052P20 respectively (both co-financed with European Regional Development Funds

Stress-induced Gene Expression Sensing Intracellular Heating Triggered by Magnetic Hyperthermia

It is known that alternating magnetic field applications on eukaryotic cells loaded with single domain iron oxide nanoparticles result in high hyperthermic citotoxicity leading to cell dead. Although magnetic hyperthermia therapy for cancer tumours is being developed under this idea, some in vitro assays have shown controversial results indicating that alternating magnetic field triggers large apoptotic effect without significant culture-temperature increase. In agreement with these observations a huge lowering in nanoparticle specific heating rates, when going from the colloidal suspension to cell endosomes, together with cell death, has been reported. Here, we propose a new methodology to determine the occurrence of local heating in cells when alternating magnetic fields in the radiofrequency field range are applied to cell cultures holding very low iron oxide concentrations, being these concentrations insufficient to produce a global cell-culture temperature increase up to therapeutic values. To this end, human lung adenocarcinoma cells (A549 cell line) were transduced with a lentiviral vector encoding the expression of the enhanced green fluorescence protein, EGFP, under the action of the inducible human heat shock protein 70B promoter. This modified A549 cell line was incubated with aqueous suspensions of magnetite core nanoparticles (uncoated or covered with coating agents like citric acid or silicon oxide), and exposed to radiofrequency fields. The application of an alternating magnetic field to cell cultures loaded with nanoparticles resulted in no global temperature increase but EGFP expression. Stress-inducible gene expression scales with uptake and nanoparticle properties like saturation magnetization and heat dissipation efficiency. Our analysis demonstrates that EGFP expression is linked to a localized intracellular temperature increase.Fil: de Sousa, María Elisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Carrea, Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); ArgentinaFil: Mendoza Zélis, Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Muraca, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidade Estadual de Campinas; BrasilFil: Mykhaylyk, Olga. Technische Universitat Munchen; AlemaniaFil: Sosa, Yolanda Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata ; ArgentinaFil: Goya, Rodolfo Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata ; ArgentinaFil: Sánchez, Francisco Homero. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Dewey, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); ArgentinaFil: Fernández van Raap, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentin