Strawberry cultivars performance in contrasting cropping conditions in Tucumán (Argentina) = Comportamiento de cultivares de fresa en condiciones de cultivo contrastantes en Tucumán (Argentina)

Strawberry (Fragaria x ananassa Duch.) production in Argentina takes place in a wide environmental range, being characterized by the coexistence of different production systems, limitations to technology access by small-scale growers, and by the foreign origin of the cultivars used. In 2021, a study was conducted to evaluate the adaptability of a set of strawberry cultivars to two contrasting cropping conditions in Tucumán, Argentina, in order to increase the current knowledge about genotype response to sub-optimal growing situations. The study included two locations, Padilla (Famaillá, Tucumán) and El Manantial (Lules, Tucumán), that share climate (CWa), soil conditions, and surrounding landscapes. In Padilla, plants were grown under the recommended strawberry farming practices (RSFP), and in El Manantial, plants were subjected to resource-limited cropping conditions (RLCC). The cultivars evaluated were ‘Benicia’, ‘Fronteras’, ‘Monterey’, ‘Petaluma’, ‘Rábida’ and ‘Rociera’. Fruit number (both total and marketable), % of marketable fruit (%MKTF), average marketable fruit weight, and yield were recorded. There were statistical differences between production systems for all the variables, in favor of RSFP. Not all the evaluated cultivars had the same production pattern in both experimental conditions, showing significant cultivar x cropping condition interactions. ‘Rociera’ and ‘Rábida’ had the best performance under RSFP; and ‘Rábida’ and ‘Fronteras’ under RLCC. ‘Rociera’ and ‘Benicia’ were the most affected cultivars under RLCC. In summary, ‘Rábida’ was the cultivar that maintained a high relative performance in both growing conditions.La producción de fresa o frutilla (Fragaria x ananassa Duch.) en Argentina se desarrolla en un amplio rango ambiental, caracterizándose por la coexistencia de diferentes sistemas productivos, escaso acceso a tecnología por parte de pequeños productores y por el origen extranjero de los cultivares utilizados. En 2021, se evaluó la adaptabilidad de distintos cultivares de fresa a dos condiciones de cultivo contrastantes en Tucumán (Argentina), procurando incrementar el conocimiento actual sobre la respuesta del genotipo a situaciones de cultivo subóptimas. El trabajo incluyó dos localidades, Padilla (Famaillá) y El Manantial (Lules), que comparten clima (CWa), condiciones de suelo y paisajes circundantes. En Padilla, el ensayo se condujo acorde a prácticas recomendadas para el cultivo de frutilla (RSFP). En El Manantial, las plantas se sometieron a condiciones de cultivo restringidas (RLCC). Los cultivares evaluados fueron: ‘Benicia’, ‘Fronteras’, ‘Monterey’, ‘Petaluma’, ‘Rábida’ y ‘Rociera’, registrándose número de frutos totales y comerciales (% frutos comerciales), peso promedio de frutos comerciales y rendimiento. Hubo diferencias estadísticas entre los sistemas productivos para todas las variables analizadas, a favor de RSFP. No todos los cultivares tuvieron el mismo patrón de producción en ambas condiciones experimentales, mostrando interacciones significativas cultivar x condición de cultivo. Se destacaron por mejor desempeño ‘Rociera’ y ‘Rábida’ bajo RSFP, y 'Rábida' y 'Fronteras' bajo RLCC. ‘Rociera’ y ‘Benicia’ fueron los cultivares más afectados bajo RLCC. En síntesis, ‘Rábida’ sobresalió por mostrar un desempeño relativo alto en ambas condiciones de crecimiento.EEA FamailláFil: Kirschbaum, Daniel Santiago. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Famaillá; ArgentinaFil: Kirschbaum, Daniel Santiago. Universidad Nacional de Tucumán. Facultad de Agronomía y Zootecnia. Cátedra de Horticultura; ArgentinaFil: Quiroga, Rolando Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Famaillá; ArgentinaFil: Funes, Claudia Fernanda. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Famaillá; ArgentinaFil: Villagra, Elizabeth L. Universidad Nacional de Tucumán. Facultad de Agronomía y Zootecnia. Cátedra de Horticultura; Argentin

Using a RGB-D camera for 6DoF SLAM

This paper presents a method for fast calculation of the egomotion done by a robot using visual features. The method is part of a complete system for automatic map building and Simultaneous Localization and Mapping (SLAM). The method uses optical flow in order to determine if the robot has done a movement. If so, some visual features which do not accomplish several criteria (like intersection, unicity, etc,) are deleted, and then the egomotion is calculated. We use a state-of-the-art algorithm (TORO) in order to rectify the map and solve the SLAM problem. The proposed method provides better efficiency that other current methods.These authors want to express their gratitude to Spanish Ministry of Science and Technology (MYCIT) and the Research and Innovation Vice-president Office of the University of Alicante for their financial support through the projects DPI2009-07144 and GRE10-16, respectively

Dynamic behaviour of multi-terminal VSC-based HVDC after a converter outage: DC control strategy

The aim of this paper is to evaluate the effect of DC-voltage control strategy on dynamic behaviour of multi-terminal Voltage-Source Converter (VSC)-Based HVDC after a converter outage. In this paper, two dc voltage control strategies are considered: (i) standard voltage margin method (SVMM) and (ii) standard voltage-droop method (SVDM). The impact is evaluated in this paper using time-domain simulations on simple test system using DIgSILENT PowerFactory considering a sudden disconnection of a converter-station. Simulation results demonstrate how important is the dc-voltage control strategy and the location/number of dc-buses involved in the dc-voltage on the dynamic response of the MTDC systems. The voltage margin control is capable to survive a converter outage just if this converter is operating on constant power mode

Impact of primary care nursing workforce characteristics on the control of high-blood pressure: A multilevel analysis

Objective: To determine the impact of Primary Health Care (PHC) nursing workforce characteristics and of the clinical practice environment (CPE) perceived by nurses on the control of high-blood pressure (HBP). Design: Cross-sectional analytical study. Setting: Administrative and clinical registries of hypertensive patients from PHC information systems and questionnaire from PHC nurses. Participants: 76 797 hypertensive patients in two health zones within the Community of Madrid, North- West Zone (NWZ) with a higher socioeconomic situation and South-West Zone (SWZ) with a lower socioeconomic situation, and 442 reference nurses. Segmented analyses by area were made due to their different socioeconomic characteristics. Primary outcome measure: Poor HBP control (adequate figures below the value 140/90 mm Hg) associated with the characteristics of the nursing workforce and selfperceived CPE. Results: The prevalence of poor HBP control, estimated by an empty multilevel model, was 33.5% (95% CI 31.5% to 35.6%). In the multilevel multivariate regression models, the perception of a more favourable CPE was associated with a reduction in poor control in NWZ men and SWZ women (OR=0.99 (95% CI 0.98 to 0.99)); the economic immigration conditions increased poor control in NWZ women (OR=1.53 (95% CI 1.24 to 1.89)) and in SWZ, both men (OR=1.89 (95% CI 1.43 to 2.51)) and women (OR=1.39 (95% CI 1.09 to 1.76)). In all four models, increasing the annual number of patient consultations was associated with a reduction in poor control (NWZ women: OR=0.98 (95% CI0.98 to 0.99); NWZ men: OR=0.98 (95% CI 0.97 to 0.99); SWZ women: OR=0.98 (95% CI 0.97 to 0.99); SWZ men: OR=0.99 (95% CI 0.97 to 0.99). Conclusions: A CPE, perceived by PHC nurses as more favourable, and more patient–nurse consultations, contribute to better HBP control. Economic immigration condition is a risk factor for poor HBP control. Health policies oriented towards promoting positive environments for nursing practice are neededThe results presented here form part of a study that has been funded partially with the First Prize for National Research in Nursing (12th edition) from Hospital Universitario Marqués de Valdecilla (Santander) in 2010

Evaluación del Grado de Biología de la Facultad de Ciencias de la Universidad de Alicante

Una vez implantado el Grado de Biología, es el momento de hacer una revisión profunda de los resultados obtenidos, con el fin de comprobar si éstos son adecuados para garantizar la continuidad de la impartición del mismo. Esta comunicación se presenta como resultado del trabajo que se está realizando en el seno de la Comisión del Grado en Biología, que es el grupo encargado de realizar la autoevaluación de dicho grado. La revisión se centra en comprobar la adquisición de competencias por parte de los estudiantes, en los recursos humanos y materiales que soportan el desarrollo del título y en el análisis de la evolución de los resultados del mismo. Todo ello en tres ámbitos principales: la Gestión del Título, los Recursos de los que se dispone y por último los Resultados obtenidos. Toda esta información será de gran ayuda para poder detectar las fortalezas y debilidades del grado, y de este modo poder reforzar aquellos puntos que se revelen más débiles

The Diboson Excess: Experimental Situation and Classification of Explanations; A Les Houches Pre-Proceeding

We examine the `diboson' excess at $\sim 2$ TeV seen by the LHC experiments in various channels. We provide a comparison of the excess significances as a function of the mass of the tentative resonance and give the signal cross sections needed to explain the excesses. We also present a survey of available theoretical explanations of the resonance, classified in three main approaches. Beyond that, we discuss methods to verify the anomaly, determining the major properties of the various surpluses and exploring how different models can be discriminated. Finally, we give a tabular summary of the numerous explanations, presenting their main phenomenological features.Comment: 37 pages, 9 Figures, 1 Tabl

Maternal obesity in twin pregnancy: the role of nutrition to reduce maternal and fetal complications

There are more and more obese mothers with twin gestations. For a long time before, the responses of lymphocytes and platelets in obese women can cause a low-grade inflammation. In addition, a proper control of gestational weight gain would improve the outcomes in mothers with high pre-gestational body mass index (BMI). In women with high pre-gestational BMI and twin pregnancy, our aims were to explore the biochemical and hematological parameters and to study the rate of obstetric adverse outcomes. This was an observational and retrospective study conducted in the Hospital Universitario La Paz (Madrid, Spain). We included 20 twin pregnancies as the lean group (BMI = 18.5–24.9 kg/m2 ), homogeneous in the maternal age and ethnicity, and having parity with other 20 twin pregnancies as the obese group (BMI ≥ 30 kg/m2 ). The maternal data and maternal, fetal, obstetric, and neonatal complications were collected from the medical records. In the first and third trimester of pregnancy, the biochemical and hematological parameters of the blood were assayed. In this cohort, gestational weight gain was significantly lower in the obese than lean group. In the first trimester, the hemoglobin levels in obese women (12.1 ± 0.8 g/dL) were lower than lean women (12.6 ± 0.7 g/dL; p-Value = 0.048). In addition, the tendency of glucose levels, TSH levels and platelets was to increase in obese compared to lean women. In the third trimester, the TSH levels were higher in obese (3.30 ± 1.60 mUI/L) than lean women (1.70 ± 1.00 mUI/L; p-Value = 0.009). Furthermore, there was a tendency for levels of platelets and lymphocytes to increase in obese compared to lean women. No significant differences were detected in the rate of maternal, fetal, obstetrical, and neonatal complications between the groups. The hemoglobin, platelets, lymphocytes and TSH levels need further investigation to understand potential subclinical inflammation in obese women. Furthermore, obese women with twin pregnancies should follow-up with a specialist nutritionist, to help them control their gestational weight gain with appropriate dietary measure