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Hermosillo, Mexico
Hermosillo, Mexico
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Rodriguez-Jauregui E.,UNISON
Journal of Physics: Conference Series | Year: 2014

A detailed analysis of a minimal S3-invariant extension of the Standard Model including an extended S3-Higgs sector is performed. In this model, we study the trilinear Higgs couplings and its dependence on the details of the model, even when the lightest Higgs boson mass is taken to be a fixed parameter. We study quantitatively the trilinear Higgs couplings, and compare these couplings to the corresponding Standard Model trilinear Higgs coupling in some regions of the parameter space. A precise measurement of the trilinear Higgs self coupling will also make it possible to test this extended S(3)-Standard Model which has a different trilinear Higgs couplings as compared to the Standard Model. Finally, partial numerical results of the phenomenological Higgs effects are presented. © Published under licence by IOP Publishing Ltd.


PubMed | Nightingale, Unison., Nursing Standard. and Patients Association.
Type: Journal Article | Journal: Nursing standard (Royal College of Nursing (Great Britain) : 1987) | Year: 2015

The suspension of NICEs vital work on safe nurse staffing levels is a damaging step back, not only for nursing but for all who use the NHS and care about its future.


Duchemin B.,CNRS Center for the Study of the Biosphere from Space | Fieuzal R.,CNRS Center for the Study of the Biosphere from Space | Rivera M.A.,ITSON | Ezzahar J.,Cadi Ayyad University | And 4 more authors.
Remote Sensing | Year: 2015

Regional analysis of water use efficiency (WUE) is a relevant method for diagnosing the performance of irrigation systems in water-limited environments. In this study, we investigated the potential of FORMOSAT-2 images to provide spatial estimates of WUE over irrigated wheat crops cultivated within the semi-arid Yaqui Valley, in the northwest of Mexico. FORMOSAT-2 provided us with a unique dataset of 36 images at a high resolution (8 m) encompassing the wheat growing season from November 2007 to May 2008. Time series of green leaf area index were derived from these satellite images and used to calibrate a simple crop/water balance model. The method was applied over an 8 × 8 km2 irrigated area on up to 530 wheat fields. It allowed us to accurately reproduce the time courses of Leaf Area Index and dry aboveground biomass, as well as evapotranspiration and soil moisture. In a second step, we analyzed the variations of WUE as the ratio of accumulated dry aboveground biomass to seasonal evapotranspiration. Despite the study area being rather small and homogeneous (soil, climate), we observed a large range in wheat biomass production, from 5 to 15 t·ha-1, which was primarily related to the timing of plant emergence. In contrast, the seasonal evapotranspiration only varied from 350 to 450 mm, with no evident link with sowing practices. A significant gain in crop water productivity was found for the fields sown the earliest (maximal WUE around 3.5 kg·m-3) compared to those sown the latest (minimal WUE around 1.5 kg·m-3). These results demonstrated the value of the FORMOSAT-2 images to provide spatial estimates of crop production and water consumption. The detailed information provided by such high space and time resolution imaging systems is highly valuable to identify agricultural practices that could enlarge crop water productivity. © 2015 by the authors.


Poom J.L.,UNISON | Alvarez-Borrego J.,CICESE | Coronel-Beltran A.,UNISON | Martin-Atienz B.,UNISON
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2013

The reflection of the sunlight over the sea surface is called glitter pattern. In previous works, when the onedimensional case is analyzed, the glitter function was mathematically described like a rect function. This rect function has proved to be a very good representation of the glitter pattern. In this paper a Gaussian glitter function is used like a first approximation to the rect function. The statistical relationship between the variance of the intensities of the image, the glitter pattern, and the variance of the sea surface slopes is obtained and analyzed. The analytical solutions in this relationship are mathematical different but the graphics are very similar. © 2013 SPIE.


Iturralde-Garcia R.D.,University of Sonora | Borboa-Flores J.,University of Sonora | Cinco-Moroyoqui F.J.,University of Sonora | Riudavets J.,IRTA - Institute of Agricultural-Alimentary Research and Technology | And 4 more authors.
Journal of Stored Products Research | Year: 2016

Callosobruchus maculatus (Fab.) is the principal pest of the stored chickpea. The larvae of this insect feed on the grain, causing considerable damage that produces qualitative and quantitative losses. For control of this species, pesticides such as phosphine and methyl bromide have been used; the latter was withdrawn from use due to the reduction of the ozone layer. Therefore, it is important to develop novel, safe, and economical control alternatives such as Controlled Atmospheres (CA). In this study, the mortality was determined on four developmental states of C. maculatus, employing CA at different concentrations (50, 70, and 90% CO2 with 10, 6, and 3% O2, respectively) during 48, 72, and 120 h. 100% mortality of adult insects was observed with 50% CO2 at 48 h. Cases of third instar exhibit higher resistance to CA than adults, with 18.9% mortality at 48 h. There were no significant differences in tests on water absorption, cooking time, texture, and color. Finally, the chickpea germination obtained was 93.5% with 90% CO2 exposure during 120 h. In this latter treatment, significant differences were not presented between control and CA treatments. On comparison of means of vigor, the treatments are favored in terms of weight, rootlet number, plumule and radicle growth with the increase of CO2 concentration and exposure time. In conclusion, the effect of CA was lethal on C. maculatus, did not affect chickpea quality, and it favored chickpea vigor. © 2016 Elsevier Ltd.


Lopez-Enriquez R.L.,UniSon | Ocano-Higuera V.M.,UniSon | Suarez-Jimenez G.M.,UniSon | Rodriguez-Olibarria G.,UniSon | Marquez-Rios E.,UniSon
Interciencia | Year: 2016

Viscera of marine resources represent roughly 10-20% of the total specimen weight and should be studied for utilization in the food industry. In this study, a protein concentrate (PC) was obtained from the viscera of jumbo squids (Dosidicus gigas). Protein fractionation of the viscera material yielded 45.08 ±2.09% sarcoplasmic protein, 38.91 ±0.07% myofibrillar protein and 10.27 ±0.18% alkali-soluble proteins, while the PC showed values of 29.53 ±0.17, 51.20 ±0.75% and 15.92 ±0.15%, respectively. The electrophoretic pattern showed the presence of high molecular weight aggregates and sarcoplasmic proteins and/or hydrolyzed proteins of different molecular weights in both systems. It was possible to obtain gels of protein from viscera, but it was not possible to do so from PC. Viscera and PC were not significantly different (p≥0.05) in emulsification capacity, but the former was more stable; it also showed better foaming capacity than PC, but no difference (p≥0.05) was detected in the foam stability. The results indicate that the proteins present in the viscera of jumbo squid have low-quality gelling properties, but proteins of this by-product showed good emulsification and foam properties, which could be exploited in the production of food or food ingredients intended for human consumption.


Martinez C.L.M.,UniSon | Higuera V.M.O.,UniSon | Jimenez G.M.S.,UniSon | Rios E.M.,UniSon
Interciencia | Year: 2016

The global increase in population has caused a rise in the food demand and seafood is no exception. This has led to an overexploitation of commonly consumed species, and new species have been proposed to satisfy current demands. One such species is the giant squid. This species has a great potential due to its intrinsic characteristics. This fishing resource is one of the most important in Mexico, but only 10-20% of the catch is consumed domestically. The rest is exported to Asian countries, with minimal added value. In this sense, integral uses of this resource must be considered, as the mantle, fins, head and viscera can be used for different purposes. In this review, we summarize the major characteristics of squid proteins and their application as food ingredients, in aquaculture and in other practical applications, as well as what has been and is being done in the industry.


Escobar-Toledo M.,National Autonomous University of Mexico | Arancibia-Bulnes C.A.,National Autonomous University of Mexico | Pena-Cruz M.I.,National Autonomous University of Mexico | Riveros-Rosas D.,National Autonomous University of Mexico | And 4 more authors.
ASME 2012 6th International Conference on Energy Sustainability, ES 2012, Collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology | Year: 2012

Heliostat image drift is defined as the wandering of the irradiance spot produced by a heliostat on a receiver or observation screen. Two factors producing heliostat image drift have been analyzed theoretically in the present paper: errors in reference position, and time delay. Some regular behavior is found in the drift curves. Maximum deviations from target tend to be linearly dependent with either angular error, or time delay. In particular, the curves produced by this later effect are circular or elliptical. Heliostats at different distances from a tower have been analyzed. For heliostats far from the tower the drift curves due to errors in reference position also have a more or less elliptical shape. Results are presented as dimensionless quantities. Some practical implications of these results are discussed. Copyright © 2012 by ASME.


PubMed | Unison.
Type: Journal Article | Journal: Nursing standard (Royal College of Nursing (Great Britain) : 1987) | Year: 2016

The report Nurses go to the top over pay deal (News November 18) describes as unique the RCNs decision this year to include frontline nurses among their team that gave direct evidence to the nurses pay review body. In fact, Unison frontline nurses have been giving evidence to the review body since 1993.


PubMed | Unison.
Type: Journal Article | Journal: Nursing management (Harrow, London, England : 1994) | Year: 2016

THE CATASTROPHIC collapse in standards of care and management at Mid Staffordshire NHS foundation Trust, highlighted most recently in the inquiry by Robert francis QC, published in february, has shocked the country.

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