Position-momentum uncertainty relations based on moments of arbitrary order

The position-momentum uncertainty-like inequality based on moments of arbitrary order for d-dimensional quantum systems, which is a generalization of the celebrated Heisenberg formulation of the uncertainty principle, is improved here by use of the Renyi-entropy-based uncertainty relation. The accuracy of the resulting lower bound is physico-computationally analyzed for the two main prototypes in d-dimensional physics: the hydrogenic and oscillator-like systems.Comment: 31 pages, 9 figure

Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions

[EN] Suspension plasma spraying (SPS) deposition represents an innovative technique to produce coatings that exhib- it improved properties. However, the key to obtain coatings with superior functional properties relies on the in- vestigation of the suspensions as starting materials. For this reason, the present work deals with the suspension preparation for SPS process and its influence on the resulting coatings. Laboratory-prepared 60/40 wt% alumina-zirconia suspensions were concentrated to avoid energy loss and were then successfully deposited by SPS technique. The liquid used was water instead of ethanol due to economical, environmental and safety reasons. The preparation of the suspension plays an important role in SPS process since stable and well-dispersed water suspensions are difficult to obtain. For this reason, colloidal behaviour characterisation of the starting particles as well as rheological optimisation of the feedstock suspensions was ad- dressed in this research. Suspensions with different solid loadings (up to 30 vol.% or 72 wt%) were deposited using several spraying dis- tances. All coatings displayed a bimodal microstructure consisting in partially melted zones surrounded by a fully melted matrix. α-Al2O3 and t′-ZrO2 constituted the main crystalline phases, but differences in the microstructure and properties of the coatings were observed. From these results, some relations between starting suspension and spraying parameters with coating characteristics were found. Thus the optimal spraying distance becomes shorter when the suspension solid loading increases.This work has been supported by the Spanish Ministry of Economy and Competitiveness, MINECO (project MAT2015-67586-C3-R). M.D. Salvador thanks CAPES – Programa Ciências sem Fronteiras (Brazil) for the concession of a PVE project N° A086/2013. A. Borrell acknowledges the MINECO for her Juan de la Cierva-Incorporación contract (IJCI-2014- 19839) and the Program to Support Research and Development (PAID00-15) of the Universitat Politècnica de València.Carpio-Cobo, P.; Salvador Moya, MD.; Borrell Tomás, MA.; Sanchez Vilches, E.; Moreno, R. (2016). Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions. Surface and Coatings Technology. 307:713-719. https://doi.org/10.1016/j.surfcoat.2016.09.060S71371930

Critical plane based method for multiaxial fatigue analysis of 316 stainless steel

In this work, the fatigue behaviour of 316 stainless steel is studied with different critical plane models. Seven cylindrical samples were used for the study, being subjected to different complex loading paths, generating combined stresses along the axial and transversal sample directions, these being: individual axial stress, individual hoop stress, alternating axial and hoop stress, a proportional combination of axial and hoop stress, and a non-proportional combination of L-shaped and square-shaped axial and hoop stress. The fatigue analysis is performed using five critical plane models; named Fatemi-Socie, Varvani-Farahani, Gan-Wu-Zhong, Liu I and Liu II. The models were assessed based on their fatigue life and crack angle prediction capacity. The Gan-Wu-Zhong recently proposed critical plane model was examined and provided acceptable results for the multiaxial loads tested on 316 steel. Nevertheless, Fatemi-Socie produced the most accurate results in terms of cracking orientation and Liu II gave the best fatigue life predictions.Financial support of Programa Operativo FEDER from the Junta de Andalucia (Spain) through grant reference UMA18-FEDERJA-250 is greatly acknowledged. Support from the Oceanic Engineering Research Institute from Malaga is also acknowledged. Industrial support from Bettergy and Dr Nicolas Ordo ̃nez is greatly acknowledged, as well as access to different structures and materials in the energy industry. We would also like to acknowledge funding for open access charge: Universidad de Malaga / CBUA

Design for additive manufacturing in the medical sector. Tools and cases

This work presents a review of the three main axes that constitute the knowledge base when designing products for additive manufacturing in the medical industry: technology, materials and design tools. Through four different study cases of diverse medical products that match the existing categories in the established classification of standards, different design approaches and strategies are presented and suggested as feasible solutions that generate medical products. These cases studies intend to cover some categories where additive manufacturing can be used in the medical sector: a post-surgery protection cast developed using reverse engineering technologies and free-form modelling tools customized not only regarding anatomic shapes but also in terms of aesthetics, a surgical simulator that improves the surgeon’s education process in a non-expensive manner, which could also be shared and spread combining soft and hard parts, a hip surgery retractor designed together with experts that increase the performance of the commercial solutions and a bone replacement implant with an innovative approach that combines engineering polymers with metallic surface coatings. All these case studies present the diversity of possible applications when working with the medical industry, as well as the required skills and knowledge needed to start with this task. Beside this, it has been stated the convenience of engineers to work hand by hand with medical professionals, combining skills and visions to innovate and improve the patient’s journe

Contribution of sex steroids and prolactin to the modulation of T and B cells during autoimmunity

VERSIÓN FINAL DE AUTORES ACEPTADA PARA PUBLICACIÓN (PRE-PRINT). In this review we discuss how sex steroids and prolactin affect regulation and responsiveness of B and T cells. Sex hormones exert profound effects on several physiological processes of nonreproductive tissues. In the immune system, several studies with experimental models for SLE have shown a noticeable pro-inflammatory role for ERα, contributing to disease development reflected in proteinuria and renal pathology. On the other hand, ERβ appears to have an antiinflammatory and immunosuppressive effect. Estrogen/ERα signaling induced an increase of Th17 cells in lymph nodes as well as the expression of its correspondent chemokine receptor CCR6 during collagen induced arthritis acute phase. High levels of anti- DNA antibodies and increased mortality was observed when given high E and prolactin doses to NZB/NZW mice, as compared with mice receiving low E and prolactin doses, or high E and low prolactin doses. Intracellular progesterone receptors have been detected in TCD4+ cells but in contrast as observed with ERs, it suppresses T cell dependent responses. Progestagen administration on female NZB/NZW mice decreased anti DNA IgG, improved survival, decreased glomerulonephritis and proteinuria

Estimation of Diagnosis and Recommendation Integrated System (DRIS), Compositional Nutrient Diagnosis (CND) and Range of Normality (RN) Norms for Mineral Diagnosis of Almonds Trees in Spain

To ensure good fertilization, it is necessary to know the optimum nutrient levels for each crop. The most common method for obtaining this information for almond trees is to perform a foliar analysis coupled with the use of interpretive tools such as the traditional range of normality. However, currently, there are other, more sophisticated methods such as the DRIS (Diagnosis and Recommendation Integrated System) and the CND (Compositional Nutrient Diagnosis) which take into account the relationship between nutrients. However, little information is available with respect to these methods in the case of almond trees. In the present work, 288 samples of three contrasting varieties of almond were analyzed—Ferraduel, Ferragnes, and Garrigues (Prunus dulcis, Mill.)— corresponding to bi-weekly sampling between the months of May and September. Leaf analysis data, run with different mathematical and statistical models, lead to knowledge of the optimum period for harvesting samples and the determination of the ranges of normality and norms of DRIS and CND for the Ferraduel, Ferragnes, and Garrigues varieties. Data gained from the leaf nutrient content reported that the best season to harvest and interpret leaf samples was July. In addition, Ferraduel and Ferragnes had higher N, P, and K (2.22, 0.14, and 1.04 mg Kg1 dw, respectively) than Garrigues (2.00, 0.09. 0.67 mg Kg1 dw). The norms obtained with the leaf mineral data showed similar values between the Ferraduel and Ferragnes varieties but different values for Garrigues variety. Therefore, Garriges had the highest N/P, N/K, P/K, and P Mg norms in the DRIS method and the highest VN and VCa norms in the CND method

Dependencia social y económica del adulto mayor residente del municipio de Metepec, Estado de México

Articulo cientificoEs un artículo de investigación relacionado con los problemas más importantes en la etapa de adulto mayor es la pérdida de las capacidades funcionales, y dicha condición puede llevar a diversas implicaciones tanto de tipo económico como social

Comparación de la efectividad de antibióticos genéricos de penicilina G benzatinica in vitro contra dos cepas de Staphylococcus aureus

Los medicamentos genéricos conllevan dudas acerca de su efectividad entre pacientes y profesionales. Se adquirieron los antibiótico penicilina benzatinica de 1,200,000 U de patentes y genéricos disponibles en el mercado, se evaluó su efectividad contra Staphylococcus aureus subsp. aureus (ATCC® 10832™) y Staphylococcus aureus (ATCC® 29213™) mediante el método de dilución en pozo. Resultados: No hubo diferencia entre el crecimiento de las dos cepas de S. aureus, pero si se encontró (p <0.05) entre las cepas expuestas a los cinco antibióticos. El antibiótico genérico Bencilpenicilina/procaína, Benzatina Bencilpenicilina (laboratorio AMSA) fue el que causó mayor inhibición del crecimiento de las dos cepas de S. aureus. Los costos de los medicamentos genéricos fueron hasta un 90 % menores comparado con el medicamento de patente Bencetazil combinado® (laboratorio Sandoz GmbH-TechOps)

Improvement of the nutraceutical quality and yield of tomato by application of salicylic acid

Tomato fruits are a unique functional food and a natural reservoir of nutrients, antioxidants, vitamins and bioactive compounds that improve nutrition and human health. As an important vegetable throughout the world, tomatoes have attracted the attention of researchers to carry out various strategies to improve the functionality of this food aimed at the prevention of diseases, health and global well-being. An agronomic strategy in this study was to evaluate the influence of the application of "salicylic acid (SA)" on the yield and nutraceutical quality of the tomato crop, produced under hydroponic conditions. A completely randomized experimental design with six repetitions was used. SA at five doses (0.025, 0.05, 0.075, 0.1 and 0.125 mM) and one control were applied every 15 days in the nutritive solution under a hydroponic system on tomato plants. The evaluated variables were yield (total fruit weight per plant), fruit parameters (weight, diameter, firmness, and total soluble solids), percentage of weight loss and nutraceutical quality of tomato. The results obtained indicate that the addition of salicylic acid in nutritive solution increased the yield and biosynthesis of phytochemical compounds in tomato fruits, in relation to the control without application. In conclusion, to obtain a higher nutraceutical quality without affecting the tomato fruit yield, it is recommended to use the average concentration (0.125 mM) of SA