Integración de sistemas ERP para el monitoreo de planes y detección de eventos disruptivos en cadenas de suministros

Los sistemas de Planificación de Recursos Empresariales (ERP Enterprise Resource Planning) se definen como un conjunto de aplicaciones que permiten gestionar de manera integrada los procesos de negocio de las empresas. En la actualidad, los sistemas ERP carecen de flexibilidad suficiente para generar Cadenas de Suministros (CS) flexibles capaces de reaccionar rápidamente a eventos disruptivo. Es por ello, en este trabajo se propone un servicio MASM-ERP que integra los planes de abastecimiento, producción y distribución definidos en los ERP de las empresas involucradas en una CS. También permite monitorear la ejecución de estos planes y notificar la ocurrencia de eventos disruptivos a los actores pertinentes. El monitoreo durante la ejecución de planes permite anticiparse a los cambios que podrían tener lugar en el horizonte de tiempo considerado y mejorar los procesos de toma de decisión.IX Workshop Innovación en Sistemas de Software (WISS).Red de Universidades con Carreras en Informática (RedUNCI

Comparação entre a suplementação com volumosos e a de concentrado na alimentação de equinos em crescimento

Sixteen fillies aged 9.5 months were submitted during 112 days to the treatments: A - concentrate at the rate of 1% of body weight; B - Guinea grass (Panicum maximum Jacq.); C – Alfafa hay (Medicago sativa L.); and D - Rhodes hay (Chloris gayana Kunth.) offered ad libitum plus protein supplement. Considering the daily gain of body weight the best performance was obtained with the animals of treatment A, which presented gains as foreseen in the previsions of feedings in three experimental periods (0.84, 0.52 and 0.70 kg/day), while treatment B made possible satisfactory gain in two periods (0.50 and 0.48 kg/day) and treatment C in one period (0.59 kg/day). The highest gain in height at the withers/period was obtained with treatment A (1.85 cm), which was superior (P ≤ 0.05) to those having treatment C and D, nevertheless, not differing from treatment B. There were not any statistical differences among treatment B, C and D. The average hearth girth/period gain was 4.37 cm, there not being any significant differences (P ≥ 0.05) among the treatments. The intake of treatment C varied from 36.25 to 75.13 g/kg0.75, while, on the other hand, treatment D, even though it had a low nutritive value, presented an intake of 17.56 to 78.95 g/kg0.75.Dezesseis potrancas, com 9,5 meses de idade, foram submetidas, durante 112 dias, aos tratamentos: A - concentrado à razão de 1% do peso vivo; B - capim-colonião (Panicum maximum Jacq.); C - feno de alfafa (Medicago sativa L.) e D - feno de rhodes  (Chloris gayana Kunth.), oferecidos à vontade, mais fonte protéica. Considerando o ganho diário de peso vivo, o melhor desempenho foi obtido com os animais do tratamento A, que apresentaram ganhos compatíveis com o previsto nas normas de alimentação em três períodos experimentais (0,84, 0,52 e 0,70 kg/dia), enquanto o tratamento B possibilitou ganho satisfatório em dois períodos (0,50 e 0,48 kg/dia) e o tratamento C em um período (0,59 kg/dia). O maior aumento da altura na cernelha/período foi obtido com o tratamento A (1,85 cm) que superou (P ≤ 0,05) os obtidos com os tratamentos C e D, não diferindo, no entanto, do tratamento B. Não houve diferença estatística (P ≥ 0,05) entre os tratamentos B, C e D. O aumento médio no perímetro torácico/período foi de 4,37 cm, não havendo diferença significativa (P ≥ 0,05) entre os tratamentos. O tratamento C apresentou consumos variando de 36,25 a 75,13 g/kg0,75, enquanto o tratamento D, apesar do seu baixo valor nutritivo, apresentou consumos de 17,56 a 78,95 g/kg0,75.

Characterization of the K2-38 planetary system: Unraveling one of the densest planets known to date

.-- Toledo-Padrón, B. et al.Context. An accurate characterization of the known exoplanet population is key to understanding the origin and evolution of planetary systems. Determining true planetary masses through the radial velocity (RV) method is expected to experience a great improvement thanks to the availability of ultra-stable echelle spectrographs. Aims. We took advantage of the extreme precision of the new-generation echelle spectrograph ESPRESSO to characterize the transiting planetary system orbiting the G2V star K2-38 located at 194 pc from the Sun with V 11.4. This system is particularly interesting because it could contain the densest planet detected to date. Methods. We carried out a photometric analysis of the available K2 photometric light curve of this star to measure the radius of its two known planets, K2-38b and K2-38c, with Pb = 4.01593 ± 0.00050 d and Pc = 10.56103 ± 0.00090 d, respectively. Using 43 ESPRESSO high-precision RV measurements taken over the course of 8 months along with the 14 previously published HIRES RV measurements, we modeled the orbits of the two planets through a Markov chain Monte Carlo analysis, significantly improving their mass measurements. Results. Using ESPRESSO spectra, we derived the stellar parameters, Teff = 5731 ± 66, log g = 4.38 ± 0.11 dex, and [Fe/H] = 0.26 ± 0.05 dex, and thus the mass and radius of K2-38, Ma = 1.03-0.02+0.04 MaS and Ra = 1.06-0.06+0.09 RaS. We determine new values for the planetary properties of both planets. We characterize K2-38b as a super-Earth with RP = 1.54 ± 0.14 RaS and Mp = 7.3-1.0+1.1 MaS, and K2-38c as a sub-Neptune with RP = 2.29 ± 0.26 RaS and Mp = 8.3-1.3+1.3 MaS. Combining the radius and mass measurements, we derived a mean density of ρp = 11.0-2.8+4.1 g cm-3 for K2-38b and ρp = 3.8-1.1+1.8 g cm-3 for K2-38c, confirming K2-38b as one of the densest planets known to date. Conclusions. The best description for the composition of K2-38b comes from an iron-rich Mercury-like model, while K2-38c is better described by a rocky-model with H2 envelope. The maximum collision stripping boundary shows how giant impacts could be the cause for the high density of K2-38b. The irradiation received by each planet places them on opposite sides of the radius valley. We find evidence of a long-period signal in the RV time-series whose origin could be linked to a 0.25-3 MJ planet or stellar activity.With funding from the Spanish government through the "María de Maeztu Unit of Excellence" accreditation (MDM-2017-0737

ICTON 2018

Producción CientíficaA genetic algorithm is proposed to map virtual network functions in computing resources over 5G networks with an optical backhauling system. The algorithm outperforms other proposals in terms of blocking ratio and active CPU cores utilization.Ministerio de Economía, Industria y Competitividad (Projects TEC2014- 53071-C3 -2-P, TEC2017-84423- C3 -1-P, TEC2015-71932- REDT)Ministerio de Educación, Cultura y Deporte (Proyects BES -2015-074514 and FPU14/04227

White sand vegetation in an Amazonian lowland under the perspective of a young geological history

What controls the formation of patchy substrates of white sand vegetation in the Amazonian lowlands is still unclear. This research integrated the geological history and plant inventories of a white sand vegetation patch confined to one large fan-shaped sandy substrate of northern Amazonia, which is related to a megafan environment. We examined floristic patterns to determine whether abundant species are more often generalists than the rarer one, by comparing the megafan environments and older basement rocks. We also investigated the pattern of species accumulation as a function of increasing sampling effort. All plant groups recorded a high proportion of generalist species on the megafan sediments compared to older basement rocks. The vegetation structure is controlled by topographic gradients resulting from the smooth slope of the megafan morphology and microreliefs imposed by various megafan subenvironments. Late Pleistocene-Holocene environmental disturbances caused by megafan sedimentary processes controlled the distribution of white sand vegetation over a large area of the Amazonian lowlands, and may have also been an important factor in species diversification during this period. The integration of geological and biological data may shed new light on the existence of many patches of white sand vegetation from the plains of northern Amazonia. © 2019, Academia Brasileira de Ciencias. All rights reserved

Rarity of monodominance in hyperdiverse Amazonian forests.

Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such "monodominant" forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence of monodominance in a massive, basin-wide database of forest-inventory plots from the Amazon Tree Diversity Network (ATDN). Utilizing a simple defining metric of at least half of the trees ≥ 10 cm diameter belonging to one species, we found only a few occurrences of monodominance in Amazonia, and the phenomenon was not significantly linked to previously hypothesized life history traits such wood density, seed mass, ectomycorrhizal associations, or Rhizobium nodulation. In our analysis, coppicing (the formation of sprouts at the base of the tree or on roots) was the only trait significantly linked to monodominance. While at specific locales coppicing or ectomycorrhizal associations may confer a considerable advantage to a tree species and lead to its monodominance, very few species have these traits. Mining of the ATDN dataset suggests that monodominance is quite rare in Amazonia, and may be linked primarily to edaphic factors

Acute effect of aerobic exercise in different intensities in mucociliary clearance of patients with COPD

Design of the Study: Clinical Trial. Objective (s): To analyze the acute effect of aerobic exercise at different intensities in mucociliary clearance in patients with COPD, and to investigate possible associations of the autonomic nervous system in this response. Methods: 22 COPD patients underwent an initial evaluation for collecting personal data and spirometry to assess lung function. It was performed a progressive treadmill test for aerobic exercise prescription. Finally two randomized sessions of aerobic exercise with intensity of 60 % and 90 % of peak speed reached during the incremental test ( vVO2peack ) were performed with at least 24 hours of rest between them. The mucociliary clerance was assessed before and after the exercise sessions by testing the saccharin transit time (STT). Assessment of autonomic modulation was performed by heart rate variability (HRV) which continued throughout the protocol. Results: The values obtained in the STT test after aerobic exercise at 60 % of vVO2peack (9,08 minutes ± 4,96 ) was lower when compared to the STT before exercise ( 11,96 ± 6,31, p = 0,005 ) . That response also occurred after aerobic exercise at 90% of vVO2peack ( 8,90 ± 4,21 min ) compared to baseline ( 12,94 ± 7,22 , p = 0,023 ). Correlation analysis between the final values of STT test and HRV indexes did not show significant differences. Conclusions: Patients with COPD showed acceleration of mucociliary clerance right after a session of aerobic exercise. It was not possible to observe the association of autonomic modulation in this responseModelo do Estudo: Experimental. Objetivo(s) do estudo: Analisar o efeito agudo do exercício aeróbio em diferentes intensidades no transporte mucociliar de pacientes com DPOC, bem como investigar possíveis associações do sistema nervoso autônomo nesta resposta. Metodologia: Foram analisados 22 pacientes com DPOC que realizaram avaliação inicial para coleta de dados pessoais e espirometria a fim de avaliar a função pulmonar. Realizou-se um teste progressivo em esteira ergométrica para prescrição do exercício aeróbio. Por fim foram realizadas duas sessões de exercício aeróbio randomizadas em esteira ergométrica com intensidade de 60% e 90% do pico da velocidade atingida no teste incremental (vVO2pico) com pelo menos 24 horas de descanso entre elas. O transporte mucociliar foi avaliado antes e após realização do exercício por meio do teste do tempo de trânsito da sacarina (TTS). A avaliação da modulação autonômica foi realizada por meio da variabilidade da frequência cardíaca (VFC) a qual prosseguiu durante todo o protocolo. Resultados: Os valores obtidos no teste de TTS dos pacientes com DPOC após exercício aeróbio a 60% da vVO2pico (9,08 ± 4,96 minutos) foi menor comparado ao TTS antes do exercício (11,96 ± 6,31; p = 0,005). O que também ocorreu após exercício aeróbio a 90% da vVO2pico (8,90 ± 4,21 minutos) quando comparado ao momento basal (12,94 ± 7,22; p = 0,023). As análises de correlação entre os valores finais de TTS e índices da VFC não apontaram diferenças significativas. Conclusões: Pacientes com DPOC apresentaram aceleração da transportabilidade mucociliar frente a uma sessão de exercício aeróbio. Não foi possível observar associação da modulação autonômica nesta resposta após o exercíci

Desert dust outbreak in the Canary Islands (February 2020): assessment and impacts

World Weather Research Programme (WWRP 2021–1