Metas sociales, necesidades psicológicas básicas y motivación intrínseca como predictores de la percepción del esfuerzo en las clases de educación física

The purpose of this study was to examine the predictive power of social goals, basic psychological needs and intrinsic motivation on the perception of effort. A sample of 558 students, 297 girls and 261 boys, aged between 12 and 16 years, participated in the study. The students completed the Spanish versions of the Social Goal Scale-Physical Education (SGS-PE), the Basic Psychological Needs in Exercise Scale (BPNES) adapted to physical education, the intrinsic motivation subscale of the Perceived Locus of Causality Scale (PLOC) and the effort subscale of the Intrinsic Motivation Inventory (IMI). Multiple linear regression showed that social responsibility goals, perception of competence and autonomy positively predicted effort in physical education classes. These results show the importance for teachers to use strategies that promote responsibility, perception of competence and autonomy of the pupil, in order to achieve improvements in the effort made by pupils in physical education classes

Validation of a rapid antigen test as a screening tool for SARS-CoV-2 infection in asymptomatic populations. Sensitivity, specificity and predictive values

Background: Early diagnosis of SARS-CoV-2 infection is essential to reduce disease spread. Rapid antigen tests have not been sufficiently evaluated in asymptomatic patients to be used as massive population screening tools. Methods: Head-to-head evaluation of Roche SARS-CoV-2 Rapid Antigen Test and real-time reverse transcription polymerase chain reaction (RT-PCR) as SARS-CoV-2 screening tools performed in asymptomatic adults from a semi-closed community in University of Navarra (Spain) from November 2020 to January 2021. Sensitivity, specificity and predictive values were calculated using RT-PCR as reference method. Findings: Roche SARS-CoV-2 Rapid Antigen Test was performed on 2542 asymptomatic adults in a community with a SARS-CoV-2 incidence of 1·93%. It showed a sensitivity of 71·43% (CI 95%: 56·74 – 83·42) and a specificity of 99·68% (CI 95%: 99·37 - 99·86). Positive Predictive Value was 81·4 (CI 95% 66·6 – 91·61) and Negative Predictive Value was 99·44 (CI 95% 99·06 – 99·69). Test sensitivity was related to viral load, with higher sensitivity in RT-PCR cycle threshold (Ct) values under 25 (93·75%, CI 95%: 71·96 – 98·93), that dropped to 29·41% (CI 95%: 10·31- 55·96) in RT-PCR Ct values above 25. Interpretation: This study suggests that rapid antigen tests are less effective in asymptomatic population, when compared with RT-PCR. Further studies are needed to evaluate different options to improve screenings based on rapid antigen test, such as the use of clinical questionnaires to select higher risk-participants, the confirmation of negative results with RT-PCR or the use of repetitive sequential testing

Hydrochemistry and Uranium Concentration in Brackish Groundwater from an Arid Zone, Chihuahua, Mexico

In arid zones, the principal water supply is from groundwater, which can present high concentration of salts, heavy metals, and radioactive elements. The aim of the study was to determine isotopic uranium concentration in groundwater samples with high concentration of salts and its association with other chemical species. Samples were taken from wells with high salt content. The 238,234U radioisotope concentrations were determined by liquid scintillation and alpha-particle spectrometry. In addition, the physical-chemical parameters were recorded in situ; whereas the dissolved ions and elemental composition were measured by UV-Vis and X-ray fluorescence spectrophotometry, respectively. To obtain isotopic uranium concentrations, three radiochemistry procedures were carried out. An ANOVA test was performed to compare the results from procedures, as well as an analysis of Pearson correlation was used between parameters to obtain their associations. Statistically, the U isotopic concentrations did not show differences (p-value 0.82) between procedures. 238U and 234U showed mean concentrations of 6.7 mBq mL-1 and 16.6 mBq mL-1, respectively, with an Activity Ratioby up 7.2. The groundwater under study showed high concentration of TDS, calcium, sulphate, chloride, nitrate, and nitrite. Isotopic U concentrations tend to increase with NO3>Zn>Cl>Br>SO4>Cu>T>SDT>P; meanwhile their contents decrease with T>Cl->NO2>Fe. These findings help us to understand the uranium behavior in groundwater with high salt contents as well as the influence of agricultural supplies on chemical species presents in groundwater

Inflammatory papillary hyperplasia : a systematic review

Inflammatory papillary hyperplasia (IPH) is a benign lesion of the palatal mucosa. It is usually found in denture-wearers but also has been reported in patients without a history of use of a maxillary prosthesis use. The aim of this study is to review the literature to assess the prevalence of denture stomatitis and inflammatory papillary hyperplasia and the etiological factors associated. Out of the 190 studies obtained initially from the search 16 articles were selected to be included in our systematic review. The prevalence of denture stomatitis was 29.56% and 4.44% for IPH. We found 5 cases of denture stomatitis among non-denture-wearer individuals. All IPH cases were associated with the use of prosthesis. Smoking and continued use of ill-fitting dentures turned out to be the most frequent risk factors for developing IPH. IPH is a rare oral lesion and its pathogenesis still remains unclear. Its presentation among non-denture-wearers is extremely unusual

Fluvial and maritime drainage installations with roman amphorae: the Flavian wharf at Caño de Sancti petri (San Fernando, Cádiz)

En este trabajo se presentan los resultados del estudio e interpretación de una excavación de urgencia que tuvo lugar a principios de 1996 en la salina de San Cayetano en San Fernando (Cádiz), junto a una de las orillas del Caño de Sancti Petri. La estructura localizada se componía de una serie de alineaciones paralelas de ánforas romanas machihembradas, en posición horizontal, situadas en dos niveles y reforzadas entre sí por pilotes de madera de pino (datados por C-14), sobre las cuales se localizaron los restos de una pavimentación pétrea. El conjunto parece fecharse en época flavia a tenor de las precisiones derivadas del estudio de los envases ánforicos reutilizados, que ascienden a más de cuarenta (mayoritariamente salsarias béticas altoimperiales –Dr. 7/11, Beltrán II A y Beltrán II B–, olearias del Valle del Guadalquivir –Dr. 20– y otros tipos importados –Dr. 2/4 y Dr. 14–). Los paralelos edilicios localizados, especialmente en la zona noritálica (laguna de Venecia y llanura padana) y en la desembocadura del Ródano permiten relacionar esta estructura con los restos de una plataforma drenante hidrófuga destinada a garantizar la solidez y horizontalidad del substrato. Su localización en la orilla del Caño de Sancti Petri, unida al actual topónimo (Los Cargaderos) y a su relación con las villae altoimperiales situadas en las inmediaciones permiten interpretar este yacimiento como un posible embarcadero destinado a facilitar el tránsito de mercancías en esta zona del archipiélago gaditano. Al hilo de este hallazgo se plantean algunas reflexiones sobre las construcciones realizadas con ánforas en el ámbito de la isla de San Fernando (como reflejo de la problemática general de la Bahía de Cádiz) y especialmente sobre el uso de madera en las instalaciones portuarias hispanorromanas.We present in this paper the results of the archaeological study of a rescue excavation carried out in 1996 in the so called “Salina de San Cayetano” in the city of San Fernando (Cádiz), near one of the banks of the “Caño de Sancti Petri”. The structure is composed of two levels of interconnected amphorae located in parallel horizontal lines, reinforced by pine stakes, underneath a small stones pavement. The site is dated in flavian times according to the information provided by the more than forty reused vessels (mainly baetican amphorae for fish –Dr. 7/11, Beltrán II A and Beltrán IIB–, oil amphorae from the Guadalquivir valley –Dr. 20– and other imported ones –Dr. 2/4 and Dr. 14–). The parallels found, specially in northern Italy (area of Venice and the Po plain) and in the Rhone river let us relate this structure to a draining platform. Its location by the river side, the name of the site (“Los Cargaderos” = dockers) and the vicinity of some early roman villae show that we are in front of a small roman wharf in the Bay of Cádiz. Some observations concerning the reusing of amphorae for architectural purposes and the use of wood in the hispanorroman harbour installations are also discussed

Demo Abstract: From Business Process Specifications to Sensor Network Deployments

makeSenseCONE

Towards Business Processes Orchestrating the Physical Enterprise with Wireless Sensor Networks

The industrial adoption of wireless sensor net- works (WSNs) is hampered by two main factors. First, there is a lack of integration of WSNs with business process modeling languages and back-ends. Second, programming WSNs is still challenging as it is mainly performed at the operating system level. To this end, we provide makeSense: a unified programming framework and a compilation chain that, from high-level business process specifications, generates code ready for deployment on WSN nodes

Active, Reactive and Harmonic Control for Distributed Energy Micro-Storage Systems in Smart Communities Homes

This paper aims to provide control strategies for distributed micro-storage energy systems at the residential level to contribute to smart grid goals. A simulation model of an energy storage system (ESS) charger has been implemented to test these proposed control strategies. The smart community energy management system (SCEMS), acting as an aggregator of resources in the community according to the expected demand and production, sends to each individual home the active and reactive power set-points. Besides, in case the ESS has available capacity, once the SCEMS requirements are satisfied, it is used to absorb the harmonic current components demanded by the household circuitry. It allows a local improvement in the power quality of the demanded current, and thus contributes to the global power quality consumption of the community. Simulation results showing the operation of a local ESS at a home in a Smart Community are presented to validate the proposed control strategies

The effect of the wine tourism experience

The international promotion of wine routes is leading to a growing demand for wine tourism activities. More and more tourists are choosing wine tourism as an option when planning their trips. Although the data are encouraging, little is known about the effect that these tourist activities have on wine consumers. This paper shows the effect of the wine tourism experience on a group of consumers. Through an analysis of variance, the results show that by increasing the wine tourism experience, consumers improve their attitudes towards wine, their evaluation of extrinsic and intrinsic attributes and their loyalty towards different wines. In addition, segmentation according to the level of wine tourism experience can help wine marketers to understand their potential audience and market orientatio