New constraints on Heavy Neutral Leptons from Super-Kamiokande data

Heavy neutral leptons are predicted in many extensions of the Standard Model with massive neutrinos. If kinematically accessible, they can be copiously produced from kaon and pion decays in atmospheric showers, and subsequently decay inside large neutrino detectors. We perform a search for these long-lived particles using Super-Kamiokande multi-GeV neutrino data and derive stringent limits on the mixing with electron, muon and tau neutrinos as a function of the long-lived particle mass. We also present the limits on the branching ratio versus lifetime plane, which are helpful in determining the constraints in non-minimal models where the heavy neutral leptons have new interactions with the Standard Model.Comment: 6 pages, 4 figures. v2: Minor changes, references added. Version accepted for publication in EPJ

The Network for Justice: Pursuing a Latinx Civil Rights Agenda

This article explores the need to develop a Latinx-focused network that advances law and policy. The Network for Justice is necessary to build upon the existing infrastructure in the legal sector to support the rapidly changing demographic profile of the United States. Latinxs are no longer a small or regionally concentrated population and cannot be discounted as a foreign population. Latinxs reside in every state in our nation and, in some communities, comprise a majority of the population. The goal of the Network for Justice is to facilitate and support local and statewide efforts to connect community advocates to formal channels of creating or defending law and policy. This article provides a rationale for building a national network that connects existing advocacy institutions and community organizations, with law schools, academic institutions, lawyers, and policy makers. The building blocks for a Network for Justice that support law and policy to advance Latinx civil rights are already in place but this effort requires greater coordination to more effectively advance common interests. This model draws first and foremost from the existing community resources, recognizing that the foundational core of such a network should rest in the hands of Latinxs themselves

Latinxs Reshaping Law & Policy in the U.S. South

This article addresses the key law and policy levers affecting Latinxs in what the U.S. Census Bureau designates as the South. Since the rise of the Latinx population from the 1980s onward, few legal scholars and researchers have participated in a sustained dialogue about how law and policy affects Latinxs living in the South. In response to this gap in legal research, this article provides an overview of the major law and policy challenges and opportunities for Latinxs in this U.S. region. Part II examines the geopolitical landscape of the South with special focus on the enduring legacy of Jim Crow and White supremacy, as well as provides a brief demographic overview of Latinxs in this part of the county. Part III delves into law and policy issues related to political mobilization, immigration, education, and economic opportunity. We explore each policy area by drawing on a diverse universe of knowledge: U.S. Census data, research papers and projects, published interviews, legislation, social science research, newspaper and media profiles, and judicial opinions. Part IV of this article offers a vision for building Latinx political power in the South rooted in coalition building and identifying networks of activism

Oxidative Stress and Antioxidant Defenses Induced by Physical Exercise

This chapter intends to present the physiological and biochemical mechanisms by which exercise induces the appearance of oxidative stress, as well as the characteristics of the physical exercise that involve the appearance of oxidative stress in the human organism

Food aroma mass transport properties in renewable hydrophilic polymers

[EN] The sorption and transport properties of gliadin and chitosan films with respect to four representative food aroma components (ethyl caproate, 1-hexanol, 2-nonanone and α-pinene) have been studied under dry and wet environmental conditions. The partition coefficients (K) of the selected volatiles were also obtained using isooctane and soybean oil as fatty food simulants. The results showed that gliadin and chitosan films have very low capacities for the sorption of volatile compounds, and these capacities are influenced by the nature of the sorbate, the environmental relative humidity and the presence of glycerol as a plasticizer in the polymeric matrix. The volatile compounds also present a low partitioning in the biopolymer film/food stimulant system. Given the low levels of interaction observed with the volatiles, gliadin and chitosan films are of potential interest for the packaging of foods in which aroma is one of the most important quality attributes Highlights ► Sorption kinetics and equilibrium partitioning of food aroma compounds in bioplastics. ► Gliadin and chitosan films show low sorption and partitioning capacities of food aroma compounds. ► Sorption and diffusion depend on volatile chemical structure, film composition and moisture. ► Great potential in packaging of foods in which aroma is an important quality attribute.This research has been supported from the Spanish Ministry of Science and Innovation through the Projects AGL2006-02176, AGL2009-08776 and FUN-C-FOOD Consolider Ingenio. The authors would like to thank A.P. Mac Cabe for critical reading of the manuscript.Balaguer, MP.; Gavara Clemente, R.; Hernández Muñoz, P. (2012). Food aroma mass transport properties in renewable hydrophilic polymers. Food Chemistry. 130(4):814-820. https://doi.org/10.1016/j.foodchem.2011.07.052S814820130

Neighborhood Care and Neighborhood Bonds:An Unequal Relationship

Research in environmental psychology has found a positive relationship between place bonds and behaviors related to care and maintenance of place. Although this relationship has been analyzed in natural environments, it has been less frequently studied in urban environments and has yielded contradictory results. The aim of this study is to analyze behavior related to care and conservation of neighborhood and its possible relationship to place bonds, as well as to other variables that we think may be important in explaining this behavior. The participants were 407 residents from eight different neighborhoods with different sociodemographic characteristics in one Spanish city. The results indicate that the relationship between attachment and behavior is significant only in residents with higher socioeconomic levels. These findings may help to explain the contradictory results found in the literature. Other variables which are significant in explaining neighborhood care are social norms, residential satisfaction, and support for protection policies. Place identity was not found to be significantly correlated with neighborhood care

Fijacion de nitrogeno por algas cianoficeas en los arrozales de la Albufera de Valencia

Se realizan recuentos ,aislamiento, identificación y determinación de la actividad Nitrogenasa de algas azules en muestras de suelo y agua, durante dos ciclos de cultivo del arroz . Los recuentos se realizan por la técnica del 'Plate Count', utilizando el medio de Chu y los resultados muestran grandes fluctuaciones en las muestras de agua, manteniéndose más altos y uniformes en las muestras de suelo. Después del aislamiento e identificación, llegamos a obtener colonias algales correspondientes en su mayor parte a los géneros Anabaena y Nostoc, las cuales se someten posteriormente a ensayos de reducción del acetileno, para determinar su actividad fijadora de nitrógeno. La especie identificada como N. humifusum, es en nuestras condiciones, la que posee mayor actividad fijadora, además de ser la más común en los dos campos de arroz ensayados

Mindfulness and job control as moderators of the relationships between demands and innovative work behaviours

Innovation enables organizations to respond successfully to rapid changes in a business environment. This innovation capability largely relies on employees. Although workers are required to be innovative, their jobs frequently contain higher demands that might make it difficult for them to innovate at work. The Job Demands-Control model active hypothesis suggests that highly demanding jobs that allow individuals enough discretion enhance innovative performance. Improving an important attentional resource such as mindfulness at work might also play a similar role, although there is a need for more research at this level. The main aim of this study is to examine the relative contribution of job control and increases in mindfulness as moderators in the job demands-innovation work behaviours relationship. The results obtained with 221 workers indicated that in previous situations characterized by high job demands (T1), workers who increase their capacity for mindfulness are more innovative in the future (T2)

Role of 5 α -dihydrotestosterone in testicular development of gilthead seabream following finasteride administration

In teleosts, spermatogenesis is regulated by pituitary gonadotropins and sex steroids. 5α-dihydrotestosterone (DHT), derived from testosterone (T) through the action of 5α-reductase, has recently been suggested to play a physiologically important role in some fish species. In this study, gilthead seabream, Sparus aurata L., males received an implant of 1μg T/g body mass (bm) or vehicle alone and, 7 days later, 1 mg finasteride (FIN, an inhibitor of 5α-reductase)/kg bm or vehicle. Serum levels of T, 11-ketotestosterone (11KT), DHT and 17β-estradiol (E2), and the mRNA levels of the main enzymes involved in their synthesis, were analysed. T promoted a transient increase in the serum levels of T, 11KT and E2 but a decrease in those of DHT at day 15 following T injection, in accordance with the up-regulation of mRNA levels of the enzymes involved in T transformation to 11KT (coding genes: cyp11b1 and hsd11b) and the down-regulation of mRNA levels of the enzyme responsible for T transformation to DHT (coding gene:srd5a). Interestingly, a similar effect was observed when FIN was in- jected. However, when fish were injected with T and FIN successively (T + FIN), control levels were not re-covered at the end of the experimental period (28 days). DHT seems to regulate E2 serum levels via the down-regulation of mRNA levels of aromatase (coding gene:cyp19a1a), which is needed for the transformation of T into E2. The testis histology, together with the proliferative rates recorded upon T, FIN or T + FIN treatment, suggests that DHT is involved in the onset of the meiotic phase of spermatogenesis.Versión del edito

Industrial decarbonization by a new energy baseline methodology. Case study

The main target of climate change policies in the majority of industrialized countries is to reduce energy consumption in their facilities, which would reduce the carbon emissions that are generated. Through this idea, energy management plans are developed, energy reduction targets are established, and energy-efficient technologies are applied to achieve high energy savings, which are environmentally compatible. In order to evaluate the impact of their operations and investments, companies promote measures of performance in their energy management plans. An integral part of measuring energy performance is the establishment of energy baselines applicable to the complete facility that provide a basis for evaluating energy efficiency improvements and incorporating energy performance indicators. The implementation of energy management systems in accordance with the requirements of ISO Standard 50001 is a contribution to the aim and strategies for improving cleaner production in industries. This involves an option for the industry to establish energy benchmarks to evaluate performance, predict energy consumption, and align production with the lowest possible consumption of primary and secondary forms of energy. Ultimately, this goal should lead to the manufacturing of cleaner products that are environmentally friendly, energy efficient, and are in accordance with the global environmental targets of cleaner manufacturing. This paper discusses an alternative for establishing energy baselines for the industrial sector in which several products are produced from a single raw material, and we determined the energy consumption of each product and its impact on the overall efficiency of the industry at the same time. The method is applied to the plastic injection process and the result is an energy baseline (EBL) in accordance with the requirements of ISO 50001, which serves as a reference for determining energy savings. The EBL facilitates a reduction in energy consumption and greenhouse gas emissions in sectors such as plastics, a sector which accounts for 15% of Colombia’s manufacturing GD