La industria mexicana de autopartes y su internacionalización

Rivera Corona, Joel, Aseso

ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing

A. Ginsburg et al.We present the first data release of the ALMA-IMF Large Program, which covers the 12m-array continuum calibration and imaging. The ALMA-IMF Large Program is a survey of fifteen dense molecular cloud regions spanning a range of evolutionary stages that aims to measure the core mass function. We describe the data acquisition and calibration done by the Atacama Large Millimeter/submillimeter Array (ALMA) observatory and the subsequent calibration and imaging we performed. The image products are combinations of multiple 12 m array configurations created from a selection of the observed bandwidth using multi-term, multi-frequency synthesis imaging and deconvolution. The data products are self-calibrated and exhibit substantial noise improvements over the images produced from the delivered data. We compare different choices of continuum selection, calibration parameters, and image weighting parameters, demonstrating the utility and necessity of our additional processing work. Two variants of continuum selection are used and will be distributed: the “best-sensitivity” (bsens) data, which include the full bandwidth, including bright emission lines that contaminate the continuum, and “cleanest” (cleanest), which select portions of the spectrum that are unaffected by line emission. We present a preliminary analysis of the spectral indices of the continuum data, showing that the ALMA products are able to clearly distinguish free-free emission from dust emission, and that in some cases we are able to identify optically thick emission sources. The data products are made public with this release.This paper makes use of the following ALMA data: ADS/JAO.ALMA#2017.1.01355.L and ADS/JAO.ALMA#2013.1.01365.S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. A. G. acknowledges support from the National Science Foundation under grant AST-2008101. T. Cs. has received financial support from the French State in the framework of the IdEx Université de Bordeaux Investments for the future Program. R. G.-M. acknowledges support from UNAM-PAPIIT project IN104319 and from CONACyT Ciencia de Frontera project ID: 86372. R. A. gratefully acknowledges support from ANID Beca Doctorado Nacional 21200897. T. B. acknowledges the support from S. N. Bose National Centre for Basic Sciences under the Department of Science and Technology, Govt. of India. M. B. has received financial support from the French State in the framework of the IdEx Université de Bordeaux Investments for the future Program. S. B. acknowledges support by the French Agence Nationale de la Recherche (ANR) through the project GENESIS (ANR-16-CE92-0035-01). A. L. S., Y. P., and B. L. acknowledge funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme, for the Project “The Dawn of Organic Chemistry” (DOC), grant agreement No 741002. F. L. acknowledges the support of the Marie Curie Action of the European Union (project MagiKStar, Grant agreement number 841276). This project has received funding from the ERC under the European Union’s Horizon 2020 research and innovation programme (ECOGAL, grant agreement no. 855130). F. M. acknowledges the support of the French Agence Nationale de la Recherche (ANR) under reference ANR-20-CE31-0009, of the Programme National de Physique Stellaire and Physique et Chimie du Milieu Interstellaire (PNPS and PCMI) of CNRS/INSU (with INC/INP/IN2P3). P. S. was supported by a Grant-in-Aid for Scientific Research (KAKENHI Number 18H01259) of the Japan Society for the Promotion of Science (JSPS). P. S. and H.-L. L. gratefully acknowledge the support from the NAOJ Visiting Fellow Program to visit the National Astronomical Observatory of Japan in 2019, February. A.S. gratefully acknowledges funding support through Fondecyt Regular (project code 1180350) and from the Chilean Centro de Excelencia en Astrofísica y Tecnologías Afines (CATA) BASAL grant AFB-170002. C. B. and D. W. gratefully acknowledge support from the National Science Foundation under Award No. 1816715. L. B. acknowledges support from ANID BASAL grant AFB-170002. E. R. acknowledges the support of the Natural Sciences and Engineering Research Council of Canada (NSERC), funding reference number RGPIN-2017-03987. B. W. was supported by a Grant-in-Aid for Scientific Research (KAKENHINumber18H01259)ofJapanSocietyforthePromotion of Science (JSPS). We thank the referee for a helpful and constructive report. The authors acknowledge University of Florida Research Computing for providing computational resources and support that have contributed to the research results reported in this publication. URL: https://www.rc.ufl.edu/. Part of this work was performed using the high-performance computers at IRyA-UNAM. Weacknowledge the investment over the years from CONACyT and UNAM, as well as the work from the IT staff of this institute.Peer reviewe

La suplementación con DL-ácido málico mejora las características de la canal de borregos Pelibuey en finalización

The aim of the present study was to evaluate the effect of DL-malic acid addition in Pelibuey finishing diet on average daily gain, carcass characteristics and non-carcass components. Sixteen (16) male lambs with a mean body weight of 27 ± 1.92 kg, were used in a 48-d feeding experiment. Animals were fed a high-energy diet containing corn stover, as the only forage source, with and without the DL-malic acid (MA) addition. Animals were assigned randomly in two treatments with eight lambs each: 1) Addition of4 g of DL-malic acid per kg of feed and 2) Control (diet 1 without MA). Four male lambs of each treatment were harvested after feeding experiment to measure carcass characteristics and non-carcass components. Lambs fed with MA presented a larger (P0.05) of MA on daily average weight gain and non-carcass components weight. In conclusion, addition of 4 g DL-malic acid to a high-energy feed enhances muscle accretion, which improves carcass quality of finishing lambs.El objetivo del presente estudio fue evaluar el efecto de la adición de DL-ácido málico en dietas de borregos Pelibuey en finalización sobre ganancia diaria de peso, características de la canal y componentes que no son parte de la canal. Se utilizaron 16 corderos machos de 27 ± 1.92 kg de peso vivo durante los 48 d de la prueba de alimentación. Los animales fueron alimentados con una dieta alta en energía que contenía rastrojo de maíz, como la única fuente de forraje, con y sin DL-ácido málico (MA). Los animales fueron asignados al azar a uno de los dos tratamientos con 8 borregos cada uno: 1) 4 g de MA por kilogramo de alimento y 2) Control (sin MA). Cuatro borregos de cada tratamiento fueron sacrificados, después de la prueba de alimentación, para medir las características de la canal y los componentes que no son parte de la canal. Los borregos alimentados con MA presentaron una mayor (P0.05) del MA sobre la ganancia diaria de peso y peso de los componentes que no son parte de la canal. En conclusión, la adición de 4 g de DL-ácido málico, en alimento con alto contenido energético, promueve el crecimiento muscular lo que mejora la calidad de la canal de los borregos en finalización

Natural Oregano Essential Oil May Replace Antibiotics in Lamb Diets: Effects on Meat Quality

A study was conducted to investigate the effect of oregano essential oil (OEO) and monensin sodium on the oxidative stability, colour, texture, and the fatty acid profile of lamb meat (m. Longissimus lumborum). Twenty Dorper x Pelibuey lambs were randomly divided into five treatments; control (CON), monensin sodium (SM, Rumensin 200® 33 mg/kg), a low level of OEO (LO, 0.2 g/kg dry matter (DM)), a medium level of OEO (MO, 0.3g/ kg DM), and a high level of OEO (HO, 0.4 g/kg DM). Dietary supplementation of OEO at any concentration lowered the compression strength in comparison with CON and SM. MO had the highest a* values (7.99) and fatty acid concentration (C16:1n7, C18:1n9c, C18:1n6c, C20:1n9, and C18:2n6c) during storage for 7 d at 3 °C. Lipid oxidation was not promoted (p > 0.05) by the moderated supplementation of oregano essential oil; however, OEO at 0.3 g/kg DM showed a slight lipid pro-oxidant effect. Dietary supplementation of MO and SM had the same effect on colour, tenderness, and the fatty acid profile of lamb (L. lumborum). It was demonstrated that oregano essential oil was beneficial for lambs feeding, and it could be a natural alternative to replace monensin in lamb diets with improvements in the quality of the meat