Planejamento e controle de produção de uma pequena indústria de equipamentos para o setor leiteiro

Production planning and control is necessary for the company to achieve greater efficiency, minimize waste and product delays. Therefore, this study aimed to evaluate the production process of a small industry, having as its main object of study its planning and production control, so that the variables that interfere in its productive process and suggest improvements can be identified. Thus, we started with a bibliographical research, showing concepts and authors' views on Production Systems and Production Planning and Control (PCP). After observing the current situation of the productive process of the company studied, it was suggested the implementation of a PCP sector and a simplified guide to assist in the implementation. Keywords: Planning. Control. Production.O planejamento e controle da produção é necessário para que a empresa obtenha maior eficiência, minimize seus desperdícios e atrasos de entrega de produtos. Portanto, este estudo teve como objetivo avaliar o processo produtivo de uma pequena indústria, tendo como principal objeto de estudo o seu planejamento e controle de produção, de forma que se possam identificar as variáveis que interferem no seu processo produtivo e sugerir melhorias. Assim, partiu-se de uma pesquisa bibliográfica, mostrando conceitos e visão de autores sobre Sistemas de Produção e Planejamento e Controle de Produção (PCP). Após observada a atual situação do processo produtivo da empresa estudada, foi sugerida a implementação de um setor de PCP e elaborado um guia simplificado para auxiliar na implantação. Palavras-chave: Planejamento. Controle. Produção

Enantiopure 4‐oxazolin‐2‐ones and 4‐methylene‐2‐oxazolidinones as chiral building blocks in a divergent asymmetric synthesis of heterocycles

En este trabajo se describe la reactividad de las oxazolidin-2-onas en un ambiente quiral obteniéndose resultados novedosos, los cuales se describen extensamente.Enantiopure 3‐((R)‐ and 3‐((S)‐1‐phenylethyl)‐4‐oxazoline‐2‐ones were evaluated as chiral building blocks for the divergent construction of heterocycles with stereogenic quaternary centers. The N‐(R)‐ or N‐(S)‐1‐phenylethyl group of these compounds proved to be an efficient chiral auxiliary for the asymmetric induction of the 4‐ and 5‐positions of the 4‐oxazolin‐2‐one ring through thermal and MW‐promoted nucleophilic conjugated addition to Michael acceptors and alkyl halides. The resulting adducts were transformed via a cascade process into fused six‐membered carbo‐ and heterocycles. The structure of the reaction products depended on the electrophiles and reaction conditions used. Alternative isomeric 4‐methylene‐2‐oxazolidinones served as chiral precursors for a versatile and divergent approach to highly substituted cyclic carbamates. DFT quantum calculations showed that the formation of bicyclic pyranyl compounds was generated by a diastereoselective concerted hetero‐Diels‐Alder cycloaddition.Instituto Politécnico Nacional, Secretaria de Investigación y Estudios Avanzados de la Universidad Autónoma del Estado de México, Universidad de Guanajuato y CONACYT

2022 Fitness Trends from Around the Globe

From this article, the reader should be able to Identify top 20 fitness trends for Australia, Brazil, China, Europe, Mexico, Spain, and the United States. Recognize individual and unique fitness trends represented within Australia, Brazil, China, Europe, Mexico, Spain, and the United State

Mejoramiento del parque Juan Aldama - Autoconstrucción de techo verde de bambú en vivienda social, Puerto Vallarta, Jalisco

El proyecto Regeneración socioambiental del río Pitillal en Puerto Vallarta, ha sido desarrollado por los equipos del PAP desde la primavera de 2021 y contempla una metodología que combina la producción social del hábitat (Ortiz. E, 2012) con la autoconstrucción con materiales locales (Comunal, 2019). Se han desarrollado investigaciones para generar diagnósticos, posteriormente se han desarrollados propuestas técnicas que se han validado con los habitantes de la zona. Se busca actualmente pasar a la etapa de la acción participativa, buscando motivar el involucramiento de los actores locales y beneficiarios de las zonas en las que se da el acompañamiento. Se presenta aquí el reporte del proceso de la realización de dos líneas de investigación que dan continuidad a procesos que se originaron en semestres anteriores del PAP en el escenario de Puerto Vallarta:AUTOCONSTRUCCIÓN DE CUBIERTA DE BAMBÚ Y FORESTACIÓN EN PARQUE JUAN ALDAMA y AUTOCONSTRUCCIÓN DE CUBIERTA DE BAMBÚ Y FORESTACIÓN EN AZOTEA DE VIVIENDA EN VALLARTA VILLAS.ITESO, A.C

Entrepreneurship and Sustainability as Key Elements for Innovation: A Brazilian Dilemma

Considering the socio-economic reality of Brazil and from the relevance of the issues related to entrepreneurship and organizational innovation in the country, the importance of sustainability for the organizations could become a solution for the integration of entrepreneurship with innovation. The objective of this research is to highlight the relevance of sustainability for organizations as a way to trigger the integration of entrepreneurship toward innovation in the Brazilian context. Various exploratory and descriptive researches on the dynamics of entrepreneurship, innovation and sustainability in the main organizations of the Serra Gaúcha (RS), Brazil were carried out through the Multidisciplinary Research Group on Innovation and Competitiveness, in partnership with a research Nucleus on Innovation, Entrepreneurship and Sustainability. The main results indicate that the key sectors of this Brazilian regional economy present less “innovation intensity,” which are mainly characterized by internal organizational activities of innovation, preventing them to become “regional systems of innovation,” and which presupposes the lack of sustainability. Those limitations can be characterized as “innovation ghettos.” In that logic, the researchers have also demonstrated the presence of “ghettos of sustainability, ghettos of innovation, and therefore, ghettos of sustainability and innovation” in the sectors of this Brazilian regional economy, but in differentiated and restricted perspective

Measurement of the cosmic ray spectrum above 4×10184{\times}10^{18} eV using inclined events detected with the Pierre Auger Observatory

A measurement of the cosmic-ray spectrum for energies exceeding $4{\times}10^{18}$ eV is presented, which is based on the analysis of showers with zenith angles greater than $60^{\circ}$ detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above $5.3{\times}10^{18}$ eV, the "ankle", the flux can be described by a power law $E^{-\gamma}$ with index $\gamma=2.70 \pm 0.02 \,\text{(stat)} \pm 0.1\,\text{(sys)}$ followed by a smooth suppression region. For the energy ($E_\text{s}$) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find $E_\text{s}=(5.12\pm0.25\,\text{(stat)}^{+1.0}_{-1.2}\,\text{(sys)}){\times}10^{19}$ eV.Comment: Replaced with published version. Added journal reference and DO

Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory

The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The response of the radio stations in the 30 to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of the incoming electric field. For the latter, the energy deposit per area is determined from the radio pulses at each observer position and is interpolated using a two-dimensional function that takes into account signal asymmetries due to interference between the geomagnetic and charge-excess emission components. The spatial integral over the signal distribution gives a direct measurement of the energy transferred from the primary cosmic ray into radio emission in the AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air shower arriving perpendicularly to the geomagnetic field. This radiation energy -- corrected for geometrical effects -- is used as a cosmic-ray energy estimator. Performing an absolute energy calibration against the surface-detector information, we observe that this radio-energy estimator scales quadratically with the cosmic-ray energy as expected for coherent emission. We find an energy resolution of the radio reconstruction of 22% for the data set and 17% for a high-quality subset containing only events with at least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO

Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principle calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.Comment: Replaced with published version. Added journal reference and DOI. Supplemental material in the ancillary file

A collaboratively derived environmental research agenda for Galapagos

Galápagos is one of the most pristine archipelagos in the world and its conservation relies upon research and sensible management. In recent decades both the interest in, and the needs of, the islands have increased, yet the funds and capacity for necessary research have remained limited. It has become, therefore, increasingly important to identify areas of priority research to assist decision-making in Galápagos conservation. This study identified 50 questions considered priorities for future research and management. The exercise involved the collaboration of policy makers, practitioners and researchers from more than 30 different organisations. Initially, 360 people were consulted to generate 781 questions. An established process of preworkshop voting and three rounds to reduce and reword the questions, followed by a two-day workshop, was used to produce the final 50 questions. The most common issues raised by this list of questions were human population growth, climate change and the impact of invasive alien species. These results have already been used by a range of organisations and politicians and are expected to provide the basis for future research on the islands so that its sustainability may be enhanced. </jats:p