Analysing the Diffusion of a Mobile Service Supporting the E-grocery Supply Chain

Purpose – The purpose of this paper is to propose a systemic methodology to assess the potential of and facilitate policies for the diffusion of a smartphone based service enabling supply chain (SC) operations in the e-grocery sector. Design/methodology/approach – A System Dynamics (SD) model combining the Bass paradigm for innovation diffusion and an inventory management framework is developed. Semi-structured interviews are conducted to understand the industry business processes; a simple SD model is designed to capture the most important variables together with the relationships among them; a detailed SD model is calibrated and simulation outcomes are analysed. Findings – The efficiency and reliability of the service drive its diffusion among producers and consumers, who in turn persuade retailers to adopt. The assessment methodology can be part of feasibility studies and marketing investigations in order to understand the impact of e-commerce tools on SC processes. Research limitations/implications – This contribution stresses the need to analyse how mobile information technologies may benefit all the business processes of the e-grocery SC, and not just one single process or stakeholder. Practical implications – The approach offers a roadmap to identify the factors influencing the diffusion of mobile e-grocery services as well as the associated impacts on SC processes. Originality/value – The work contributes to overcoming the lack of approaches studying the diffusion of e-grocery by taking into account all the relevant aspects and stakeholders involved and not only the consumer perspective

6.10 Primary Hyperaldosteronism Treatment Reduces Left Ventricular Mass According to the Entity of Hormonal Production

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Remote Control of a Robot Rover Combining 5G, AI, and GPU Image Processing at the Edge

This paper has been presented at 2020 Optical Fiber Communications Conference and Exhibition (OFC)The demo shows the effectiveness of a low latency remote control based on 5G and image processing at the edge exploiting artificial intelligence and GPUs to make a robot rover slalom between posts.This work has been partially supported by TIM under the Cooperation Agreement with Scuola Superiore Sant’Anna for the 5G MISE Trial in Bari and Matera 2018-2022 and the EU Commission through the 5GROWTH project (grant agreement no. 856709)

Fraccionamiento con urea de etil ésteres de ácidos grasos obtenidos por transesterificacion de aceites vegetales.

Los aceites vegetales comestibles son productos alimenticios constituidos principalmente por glicéridos de ácidos grasos, además de otros lípidos. Los mismos tienen una función vital para el organismo y son una de las más importantes fuentes de energía, proporcionan vitaminas A, D, E y K y ácidos grasos esenciales. Los componentes funcionales presentes en los aceites son necesarios en la nutrición humana para cumplir con funciones de carácter metabólico y/o estructural. Por ese motivo, y al comprobarse que ayudan en la prevención de diversas patologías y deterioros de la salud, se pone especial atención en las investigaciones y desarrollos de alimentos enriquecidos con estas fracciones lipídicas. Por esta razón se elaboran complementos (cápsulas, pastillas, tabletas y otras formas similares) en los que se pueden concentrar tales principios activos. Actualmente se está trabajando en un desarrollo tecnológico en el contexto del convenio específico establecido entre la Facultad Regional Villa María de la UTN y la empresa Porta Hermanos S.A. El mismo comprende el tratamiento integral del proceso de obtención de etil ésteres de ácidos grasos a partir aceites vegetales comestibles no tradicionales. Como parte de tales actividades se investigó sobre diferentes técnicas para su concentración. De manera particular se evaluó a escala laboratorio diferentes variables para el fraccionamiento mediante formación de complejos con urea. La misma se basa en la formación de complejo de inclusión de urea y ácidos grasos. Estos resultan en la cristalización de los ácidos grasos saturados y monoinsaturados permitiendo así la separación de los poliinsaturados pretendidos. Se desarrolló una serie de experiencias a efectos de evaluar el comportamiento de las principales variables tendientes a la optimización de esta metodología y su combinación con otras etapas de separación, lo cual permitió alcanzar una concentración de etil ésteres de ácidos grasos de C18, con valores cercanos al 90%. Como conclusiones se indica que los resultados obtenidos permitieron disponer de información suficiente para desarrollar los respectivos balances másicos y energéticos a escala piloto que hacen posible evaluar la factibilidad de proyectar el desarrollo e implementación de esta tecnología a una mayor escala de producción.Fil: Bragagnini Napolitano, Virginia M. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Fil: Magnani, Ezequiel. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Fil: Toselli, Luis A. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Peer Reviewe

Evaluación de propiedades de lechadas de cal utilizadas en la producción de carbonato de calcio precipitado

Para el desarrollo de este trabajo, se lleva a cabo una serie de actividades experimentales que permiten evaluar propiedades físicas de interés para lechadas de cal, se analiza de manera particular la velocidad de sedimentación y la viscosidad para preparados de cales de distinta granulometría, que se obtienen a diferentes temperaturas de hidratación. Tales lechadas se producen normalmente con un exceso considerable de agua, que va desde 2.5 a 6 partes de la misma con 1 parte de CaO (que equivale entre 15 % y 40 % p/p de sólidos), proceso al que se denomina apagado. En estas experiencias se trabajo para concentraciones iníciales del 30 % p/p con dilución final del hidrato resultante a 10 % p/p. En esta suspensión, pulpa, o lechada final, las partículas de hidróxido de calcio y el exceso de calcio sin reaccionar se encuentran dispersos en una concentración que resulta más favorable para el diseño de equipos y tuberías de proceso. Las propiedades analizadas están influenciadas por el modo de preparación de las suspensiones, las características de la materia prima, particularmente la reactividad, granulometría de la cal y por la temperatura del agua de apagado, lo cual pudo ser debidamente cuantificado. Estos ensayos experimentales constituyen la primera etapa de un desarrollo que se realiza en el GISIQ como actividad de transferencia, en el contexto de convenios vigentes.Fil: Bragagnini, Virginia M. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Fil: Beltrán, Romina A. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Fil: Maldonado, Patricia. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Fil: Morea, Pilar. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Fil: Toselli, Luis A. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Peer Reviewe

Aplicación de la destilación molecular de camino corto a la separación de macromoléculas de aceites vegetales

Se han desarrollado ensayos experimentales a escala piloto para concentrar etil ésteres de ácidos grasos obtenidos por transesterificación de aceites vegetales comestibles. Los mismos se llevaron a cabo con el objetivo de concentrar los tipos poliinsaturados de C18, en particular el correspondiente al alfa-linolénico (ALA), dado su interés de comercialización a partir de dichos aceites, a diferencia de otros compuestos de interés como los ácidos eicosapentaenoico (EPA) y docosahexaenoico (DHA), presentes de manera natural en otros derivados de productos marinos. Tales ensayos constituyen una de las etapas principales de un desarrollo tecnológico que comprende el tratamiento integral del proceso de obtención de etil ésteres de ácidos grasos a partir aceites vegetales comestibles no tradicionales, en el contexto de un convenio específico establecido entre la Facultad Regional Villa María de la UTN y la empresa Porta Hnos S.A. Se evaluaron diferentes condiciones de operación, principalmente temperaturas y niveles de vacío, a efectos de optimizar la separación deseada utilizando un destilador molecular de camino corto facilitado por la empresa. La concentración del producto se llevó a cabo operando en múltiples etapas. La primera destilación parte del material transesterificado obtenido en una instancia previa, separándose los etil ésteres -EE- de un residuo constituido por otros suproductos de distintos tipos y características (no etil ésteres- NEE). Luego los EE fueron destilados sucesivamente hasta alcanzar un producto concentrado resultante de cortes intermedios entre livianos y pesados, los que se recuperaron luego como subproducto. Se empleó cromatografía en fase gaseosa para su cuantificación. Como resultados se menciona la determinación de las condiciones de operación que permiten llevar el proceso a escala productiva y la obtención de un producto acorde a requerimientos.Fil: Bragagnini Napolitado, Virginia M. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Fil: Vottero, Tomás J. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Fil: Magnani, Ezequiel. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Fil: Toselli, Luis A. Universidad Tecnológica Nacional. Facultad Regional Villa María. GISIQ; Argentina.Peer Reviewe

Management and outcomes of gastrointestinal congenital anomalies in low, middle and high income countries: Protocol for a multicentre, international, prospective cohort study

Introduction Congenital anomalies are the fifth leading cause of death in children <5 years of age globally, contributing an estimated half a million deaths per year. Very limited literature exists from low and middle income countries (LMICs) where most of these deaths occur. The Global PaedSurg Research Collaboration aims to undertake the first multicentre, international, prospective cohort study of a selection of common congenital anomalies comparing management and outcomes between low, middle and high income countries (HICs) globally. Methods and analysis The Global PaedSurg Research Collaboration consists of surgeons, paediatricians, anaesthetists and allied healthcare professionals involved in the surgical care of children globally. Collaborators will prospectively collect observational data on consecutive patients presenting for the first time, with one of seven common congenital anomalies (oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis, exomphalos, anorectal malformation and Hirschsprung''s disease). Patient recruitment will be for a minimum of 1 month from October 2018 to April 2019 with a 30-day post-primary intervention follow-up period. Anonymous data will be collected on patient demographics, clinical status, interventions and outcomes using REDCap. Collaborators will complete a survey regarding the resources and facilities for neonatal and paediatric surgery at their centre. The primary outcome is all-cause in-hospital mortality. Secondary outcomes include the occurrence of postoperative complications. Chi-squared analysis will be used to compare mortality between LMICs and HICs. Multilevel, multivariate logistic regression analysis will be undertaken to identify patient-level and hospital-level factors affecting outcomes with adjustment for confounding factors. Ethics and dissemination At the host centre, this study is classified as an audit not requiring ethical approval. All participating collaborators have gained local approval in accordance with their institutional ethical regulations. Collaborators will be encouraged to present the results locally, nationally and internationally. The results will be submitted for open access publication in a peer reviewed journal

Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study

Background: Congenital anomalies are the fifth leading cause of mortality in children younger than 5 years globally. Many gastrointestinal congenital anomalies are fatal without timely access to neonatal surgical care, but few studies have been done on these conditions in low-income and middle-income countries (LMICs). We compared outcomes of the seven most common gastrointestinal congenital anomalies in low-income, middle-income, and high-income countries globally, and identified factors associated with mortality. // Methods: We did a multicentre, international prospective cohort study of patients younger than 16 years, presenting to hospital for the first time with oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis, exomphalos, anorectal malformation, and Hirschsprung's disease. Recruitment was of consecutive patients for a minimum of 1 month between October, 2018, and April, 2019. We collected data on patient demographics, clinical status, interventions, and outcomes using the REDCap platform. Patients were followed up for 30 days after primary intervention, or 30 days after admission if they did not receive an intervention. The primary outcome was all-cause, in-hospital mortality for all conditions combined and each condition individually, stratified by country income status. We did a complete case analysis. // Findings: We included 3849 patients with 3975 study conditions (560 with oesophageal atresia, 448 with congenital diaphragmatic hernia, 681 with intestinal atresia, 453 with gastroschisis, 325 with exomphalos, 991 with anorectal malformation, and 517 with Hirschsprung's disease) from 264 hospitals (89 in high-income countries, 166 in middle-income countries, and nine in low-income countries) in 74 countries. Of the 3849 patients, 2231 (58·0%) were male. Median gestational age at birth was 38 weeks (IQR 36–39) and median bodyweight at presentation was 2·8 kg (2·3–3·3). Mortality among all patients was 37 (39·8%) of 93 in low-income countries, 583 (20·4%) of 2860 in middle-income countries, and 50 (5·6%) of 896 in high-income countries (p<0·0001 between all country income groups). Gastroschisis had the greatest difference in mortality between country income strata (nine [90·0%] of ten in low-income countries, 97 [31·9%] of 304 in middle-income countries, and two [1·4%] of 139 in high-income countries; p≤0·0001 between all country income groups). Factors significantly associated with higher mortality for all patients combined included country income status (low-income vs high-income countries, risk ratio 2·78 [95% CI 1·88–4·11], p<0·0001; middle-income vs high-income countries, 2·11 [1·59–2·79], p<0·0001), sepsis at presentation (1·20 [1·04–1·40], p=0·016), higher American Society of Anesthesiologists (ASA) score at primary intervention (ASA 4–5 vs ASA 1–2, 1·82 [1·40–2·35], p<0·0001; ASA 3 vs ASA 1–2, 1·58, [1·30–1·92], p<0·0001]), surgical safety checklist not used (1·39 [1·02–1·90], p=0·035), and ventilation or parenteral nutrition unavailable when needed (ventilation 1·96, [1·41–2·71], p=0·0001; parenteral nutrition 1·35, [1·05–1·74], p=0·018). Administration of parenteral nutrition (0·61, [0·47–0·79], p=0·0002) and use of a peripherally inserted central catheter (0·65 [0·50–0·86], p=0·0024) or percutaneous central line (0·69 [0·48–1·00], p=0·049) were associated with lower mortality. // Interpretation: Unacceptable differences in mortality exist for gastrointestinal congenital anomalies between low-income, middle-income, and high-income countries. Improving access to quality neonatal surgical care in LMICs will be vital to achieve Sustainable Development Goal 3.2 of ending preventable deaths in neonates and children younger than 5 years by 2030

Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study

Summary Background Congenital anomalies are the fifth leading cause of mortality in children younger than 5 years globally. Many gastrointestinal congenital anomalies are fatal without timely access to neonatal surgical care, but few studies have been done on these conditions in low-income and middle-income countries (LMICs). We compared outcomes of the seven most common gastrointestinal congenital anomalies in low-income, middle-income, and high-income countries globally, and identified factors associated with mortality. Methods We did a multicentre, international prospective cohort study of patients younger than 16 years, presenting to hospital for the first time with oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis, exomphalos, anorectal malformation, and Hirschsprung’s disease. Recruitment was of consecutive patients for a minimum of 1 month between October, 2018, and April, 2019. We collected data on patient demographics, clinical status, interventions, and outcomes using the REDCap platform. Patients were followed up for 30 days after primary intervention, or 30 days after admission if they did not receive an intervention. The primary outcome was all-cause, in-hospital mortality for all conditions combined and each condition individually, stratified by country income status. We did a complete case analysis. Findings We included 3849 patients with 3975 study conditions (560 with oesophageal atresia, 448 with congenital diaphragmatic hernia, 681 with intestinal atresia, 453 with gastroschisis, 325 with exomphalos, 991 with anorectal malformation, and 517 with Hirschsprung’s disease) from 264 hospitals (89 in high-income countries, 166 in middleincome countries, and nine in low-income countries) in 74 countries. Of the 3849 patients, 2231 (58·0%) were male. Median gestational age at birth was 38 weeks (IQR 36–39) and median bodyweight at presentation was 2·8 kg (2·3–3·3). Mortality among all patients was 37 (39·8%) of 93 in low-income countries, 583 (20·4%) of 2860 in middle-income countries, and 50 (5·6%) of 896 in high-income countries (p<0·0001 between all country income groups). Gastroschisis had the greatest difference in mortality between country income strata (nine [90·0%] of ten in lowincome countries, 97 [31·9%] of 304 in middle-income countries, and two [1·4%] of 139 in high-income countries; p≤0·0001 between all country income groups). Factors significantly associated with higher mortality for all patients combined included country income status (low-income vs high-income countries, risk ratio 2·78 [95% CI 1·88–4·11], p<0·0001; middle-income vs high-income countries, 2·11 [1·59–2·79], p<0·0001), sepsis at presentation (1·20 [1·04–1·40], p=0·016), higher American Society of Anesthesiologists (ASA) score at primary intervention (ASA 4–5 vs ASA 1–2, 1·82 [1·40–2·35], p<0·0001; ASA 3 vs ASA 1–2, 1·58, [1·30–1·92], p<0·0001]), surgical safety checklist not used (1·39 [1·02–1·90], p=0·035), and ventilation or parenteral nutrition unavailable when needed (ventilation 1·96, [1·41–2·71], p=0·0001; parenteral nutrition 1·35, [1·05–1·74], p=0·018). Administration of parenteral nutrition (0·61, [0·47–0·79], p=0·0002) and use of a peripherally inserted central catheter (0·65 [0·50–0·86], p=0·0024) or percutaneous central line (0·69 [0·48–1·00], p=0·049) were associated with lower mortality. Interpretation Unacceptable differences in mortality exist for gastrointestinal congenital anomalies between lowincome, middle-income, and high-income countries. Improving access to quality neonatal surgical care in LMICs will be vital to achieve Sustainable Development Goal 3.2 of ending preventable deaths in neonates and children younger than 5 years by 2030

Understanding Human Mobility Flows from Aggregated Mobile Phone Data⁎

In this paper we deal with the study of travel flows and patterns of people in large populated areas. Information about the movements of people is extracted from coarse-grained aggregated cellular network data without tracking mobile devices individually. Mobile phone data are provided by the Italian telecommunication company TIM and consist of density profiles (i.e. the spatial distribution) of people in a given area at various instants of time. By computing a suitable approximation of the Wasserstein distance between two consecutive density profiles, we are able to extract the main directions followed by people, i.e. to understand how the mass of people distribute in space and time. The main applications of the proposed technique are the monitoring of daily flows of commuters, the organization of large events, and, more in general, the traffic management and control