Archaeometric Classification of Scattered Marble Fragments to Help the Reconstruction of Statues

A multi-technique approach combining petrographic, cathodoluminescence, and stable isotope analyses is commonly used in provenance studies of archaeological marbles. In the present paper, this characterization approach transcends provenance, and it is applied to the reconstruction of fragmented sculptures. The potential of this novel application of archaeometric measurements is illustrated with a case study consisting in 16 scattered marble fragments retrieved from a Roman villa (Els Munts) near Tarraco (presently Northeastern Spain). The samples were grouped taking into account their similarity in quantified parameters such as the cathodoluminescence color clusters and the stable carbon and oxygen isotopic ratios. The results permitted classification of the fragments into three groups corresponding to three different statues depicting Antinous (7 fragments), Minerva goddess (4 fragments), and an undetermined character (3 fragments). Two other fragments could not be ascribed to any particular statue. The archaeometric grouping provides arguments that can be used to confirm or refute archaeological hypotheses of statue reconstructions. © 2022 by the authors

Enfisema subcutáneo secundario a perforación intestinal en paciente con enfermedad de Crohn

Presentamos el caso de un varón de 71 años con enfermedad de Crohn de larga evolución (A2B2L3), con estenosis de íleon distal que condiciona dilatación de intestino delgado. En tratamiento con golimumab, azatioprina y prednisona. Ingresó por un cuadro de oclusión parcial con evolución lentamente favorable. De manera súbita el paciente presentó mal estado general y dolor abdominal, objetivándose en la exploración crepitación del tejido subcutáneo. Se realizó un escáner urgente que mostró los hallazgos que se presentan a continuación (...

Adherence to Mediterranean diet associated with health-related quality of life in children and adolescents: a systematic review

Abstract Background: Health-related quality of life (HRQoL) has become a signifcant outcome in assessing interventions in the pediatric population and could be infuenced by diet patterns. The Mediterranean diet (MD) pattern has been related to multiple positive health outcomes, including decreased cardiovascular risk and better mental health. We aimed to evaluate the association between MD adherence and HRQoL in children and adolescents. Methods: The literature search was conducted in PubMed, Cochrane Library, Scopus, Web of Science, Embase, and Ovid-MEDLINE databases from inception to May 2022. Two researchers independently checked titles and abstracts, evaluated full-text studies, extracted data, and appraised the risk of bias using the Newcastle–Ottawa Scale (NOS). Results: Eleven studies (1 longitudinal and 10 cross-sectional), totaling 6,796 subjects, were included. Ten studies assessed MD adherence with KIDMED index, and one assessed MD adherence with Krece Plus test, while all included studies assessed HRQoL with a KIDSCREEN test. All studies analyzed the association between MD adherence and HRQoL with linear regression, and eight used adjusted models. Five studies found a signifcant positive association of MD adherence with HRQoL, with β-values ranging from 0.13 to 0.26. Two found a nonsignifcant positive relationship, while one found a negative association. According to the NOS criteria, the risk of bias assessment showed four studies with a low risk of bias and seven with a high risk of bias. Conclusion: Our fndings suggest a positive correlation of MD adherence with HRQoL in children and adolescents. However, future research is needed to strengthen the evidence of this relationshi

Peer inter-laboratory validation study of a harmonized SPME-GC-FID method for the analysis of selected volatile compounds in virgin olive oils

In the context of supporting the panel test in the classification of virgin olive oils, the qualitative and quantitative analysis of a number of volatile compounds responsible for their aroma is of great importance. Herein, the data obtained from three laboratories that analyzed the same samples are presented with the view to develop an inter-laboratory validation study of a harmonized solid-phase micro-extraction coupled with gas-chromatography with flame ionized detector (SPME-GC-FID) method for determination of selected volatile compounds. In particular, quantification of the minimum number of key markers responsible for positive attributes (e.g. fruity) and sensory defects was investigated. Three quantification strategies were considered since they can have a notable impact on the effectiveness of the use of markers as well as on the robustness and simplicity of the method that is designed for control laboratories. A peer-validation study indicated repeatability with a mean relative standard deviation (RSD%) lower than 14% except for ethyl propanoate, 3-methyl-1-butanol, 1-octen-3-ol, and (E)-2-decenal. Linearity was satisfactory (R2 > 0.90) for all compounds when the calibration curves were corrected by the internal standard. Several critical issues were identified, such as high RSD% (>50%) in terms of reproducibility for ethyl propanoate, (E)-2-decenal, and possible improvements of the limits of detection (LODs) and quantitation (LOQs) of (E)-2-heptenal, (E,E)-2,4-hexadienal, and (E)-2-decenal. In particular, some compounds (ethyl propanoate, (E)-2-heptenal, 1-octen-3-ol, (E,E)-2,4-hexadienal, (E)-2-decenal and pentanoic acid) showed LOQs that were higher than the concentrations found in some samples. The discussion permitted improvement of the protocol towards the final version for an upcoming full validation process

Methodology for the analysis of vulnerability to water watershed supplying climate variability

This research paper presents a methodology for the analysis of vulnerabi­lity of water supply sources with regional results (Popayan and Cajibío), considering the following points: 1) incorporation of relevant indicators of municipal water supply sources, 2) Local knowledge on perception, and identification of climate related problems, 3) mathematical procedures and adjust the algorithm for calculating the vulnerability and 4) coordination with territorial planning instruments. As a result, the vulnerability in the current scenario of the Rio Las Piedras subbasin (Popayán) is medium low (0.42) product generated by adaptive capacity developed synergistic processes between local actors; in contrast, the basin of the river Michicao (Cajibio) has a high average vulnerability (0.54) due to social dislocation, low institutional presence and zero environmental investment.Este artículo de investigación presenta una metodología para el análisis de vulnerabilidad de fuentes abastecedoras de agua con resultados regionales (Popayán y Cajibío), considerando los siguientes elementos: 1) Incorpora­ción de indicadores pertinentes para fuentes abastecedoras de acueductos municipales, 2) Saberes locales sobre percepción, clima e identificación de problemáticas relacionadas, 3) Procedimientos matemáticos y ajuste del algoritmo para calcular la vulnerabilidad y 4) articulación con instrumentos de planificación territorial. Como resultado, la vulnerabilidad en el escenario actual de la subcuenca río Las Piedras (Popayán) es medio baja (0,42), produc­to de la capacidad adaptativa generada por procesos sinérgicos desarrollados entre los actores locales; en contraste, la subcuenca del río Michicao (Cajibío) presenta una vulnerabilidad media alta (0,54), debido a la desarticulación social, baja presencia institucional y nula inversión ambiental

Knowledge about contraceptive methods and sexual behavior in young university students.

Introducción: En México los embarazos no planificados se presentan entre 30% y 60% en adolescentes. Esta problemática permea a todos los grupos de la sociedad observándose aún en las universidades. La Universidad Autónoma del Estado de México ha realizado acciones preventivas; sin embargo, en cinco años, el número de embarazos en las estudiantes incrementó en un plantel de la zona oriente, por lo que se propuso evaluar el conocimiento sobre métodos de planificación familiar y conducta sexual que tienen los estudiantes universitarios. Metodología: Estudio cuantitativo transversal realizado en 2018. La muestra no probabilística estuvo integrada por 224 alumnos de ciencias sociales del nivel superior de la Universidad Autónoma del Estado de México, quienes dieron su consentimiento informado. Se les aplicó un cuestionario de 32 ítems a través del cual se evaluó conocimiento sobre métodos de planificación familiar y conductas sexuales que tenían. Resultados: 51% informaron recibir información sobre métodos de planificación familiar entre 13 y 17 años, proviniendo de su profesor(a). 69% de los estudiantes reportaron haber tenido relaciones sexuales; de los cuales 97% respondieron que antes de ingresar al nivel superior recibieron la información sobre métodos anticonceptivos. Actualmente 45% no utiliza algún método anticonceptivo, 49% declararon haber tenido sexo oral y 18% anal. 9% reportó tener relaciones sexuales bajo influencia de drogas. Conclusiones: Se realizó un acercamiento al conocimiento sobre métodos de planificación familiar y conducta sexual de los estudiantes, para diseñar e implementar un programa de salud sexual que prevenga infecciones de transmisión sexual y embarazos no planificados.Unplanned pregnancies in Mexico occur between 30 and 60 percent of the cases in adolescents. This problem permeates all groups in society being observed even in universities. Universidad Autónoma del Estado de Mexico has developed preventive actions, but in five years the number of pregnancies in students increased in one of its campuses in the western area, reason why it was proposed to evaluate the knowledge about family planning methods and sexual behavior that university students have. Methodology: Cross-sectional quantitative study conducted in 2018. The non-probability sample consisted of 224 students from the upper level of Universidad Autónoma del Estado de Mexico who gave their informed consent. A questionnaire of 32 items was applied, through which knowledge about family planning methods and sexual behaviors they had were evaluated. Results: 51% reported receiving information about family planning methods when they were 13 and 17 years old, coming from their teachers. 69% of the students reported having had sexual intercourse from whom 97% answered that they had received information about contraceptive methods before entering the upper level. Currently 45% do not use any contraception method, 49% reported having oral sex and 18% anal sex; 9% reported having sex under the influence of drugs. Conclusions: An approach was made to knowledge about family planning methods and sexual behavior of students, to design and implement a sexual health program that prevents sexually transmitted infections and unplanned pregnancies

Mejoramiento de la rotación de tracto camiones en la compañía DIC S.A.S.

La compañía distribuidora internacional colombiana S.A.S. (DIC S.A.S), es una compañía creada por el grupo empresarial Corona, quienes dedicaron, ésta unidad de negocio al apoyo del transporte de las cargas de producto terminado que se movilizan desde el centro de producción en la población de Sopó hasta sus principales centros de distribución ubicados en las ciudades de Cartagena y Medellín. Usando una metodología de investigación descriptiva, cuantitativa, se ha querido realizar un diagnostico al funcionamiento actual de la operación de transporte, donde se usan tracto camiones y sus respectivos tráilers, con el fin de buscar problemáticas presentadas y formular soluciones hacia la compañía. Para realizar el ejercicio se tiene como premisa la solución de la incógnita de que si ¿La implementación de la metodología Lean aporta soluciones a la problemática del uso de los tracto camiones pertenecientes a la empresa DIC S.A.S.?, basado en el objetivo de proponer una metodología que aporte al mejoramiento en la utilización de los tracto camiones a fin de disminuir los tiempos de estadía en planta, buscando maximizar los beneficios económicos y aumentar la productividad y eficiencia en la distribución. Para lo cual se busca sortear los pasos consecuentes para su alcance, los cuales plantean que se debe diagnosticar la empresa y los tiempos muertos en la operación con sus costos asociados, describiendo la metodología Lean aplicable a la cadena logística, usando herramientas como el benchmarking, para formar una imagen frente a empresas lideres en el mercado y ejecutar el beneficio que se adquiere midiendo el beneficio adquirido.PregradoIngeniero en IndustrialIngeniería Industria

Collaborative peer validation of a harmonized SPME-GC-MS method for analysis of selected volatile compounds in virgin olive oils [intervalidazione di un metodo armonizzato SPME-GC-MS per l¿analisi di composti volatili selezionati in oli di oliva vergini]

Final version is available in open access in publisher’s site.-- This abstract is based on the published article: Ramón Aparicio-Ruiz, Clemente Ortiz Romero, Enrico Casadei, Diego L. García-González, Maurizio Servili, Roberto Selvaggini, Florence Lacoste, Julien Escobessa, Stefania Vichi, Beatriz Quintanilla-Casas, Pierre-Alain Golay, Paolo Lucci, Erica Moret, Enrico Valli, Alessandra Bendini, Tullia Gallina Toschi. Collaborative peer validation of a harmonized SPME-GC-MS method for analysis of selected volatile compounds in virgin olive oils, Food Control, Volume 135, 2022, 108756, https://doi.org/10.1016/j.foodcont.2021.108756.-- http://hdl.handle.net/10261/258960The evaluation of the sensory attributes in virgin olive oil (VOO) is carried out according to the standard method of panel test [1, 2]. Recently, it has been proposed as SPME-GC-FID method as the most ade- quate instrumental method to determine volatiles compounds in VOO to support the sensory panels test [3]. This method developed in the European funded project OLEUM, in which all the variables have been defined and harmonized, has been tested in three laboratories to perform an inter-laboratory validation of the quantification of the most relevant VOCs that are responsible for VOO sensory attributes. The valida- tion study was carried out for each one of the selected molecules in order to have an individual infor- mation for each analyte. With the same objective, in the present work, five laboratories, all being active partners in the OLEUM project, carried out an inter-lab evaluation of the SPME-GC-MS joint protocol. The validation was carried out by each laboratory following the same analytical conditions and on the same samples, in order to make the results obtained by each laboratory comparable in a harmonized procedure and methodology, as previously done with FID [3]

Metodología para el análisis de vulnerabilidad en cuencas abastecedoras de agua ante la variabilidad climática

This research paper presents a methodology for the analysis of vulnerabi­lity of water supply sources with regional results (Popayan and Cajibío), considering the following points: 1) incorporation of relevant indicators of municipal water supply sources, 2) Local knowledge on perception, and identification of climate related problems, 3) mathematical procedures and adjust the algorithm for calculating the vulnerability and 4) coordination with territorial planning instruments. As a result, the vulnerability in the current scenario of the Rio Las Piedras subbasin (Popayán) is medium low (0.42) product generated by adaptive capacity developed synergistic processes between local actors; in contrast, the basin of the river Michicao (Cajibio) has a high average vulnerability (0.54) due to social dislocation, low institutional presence and zero environmental investment. Este artículo de investigación presenta una metodología para el análisis de vulnerabilidad de fuentes abastecedoras de agua con resultados regionales (Popayán y Cajibío), considerando los siguientes elementos: 1) Incorpora­ción de indicadores pertinentes para fuentes abastecedoras de acueductos municipales, 2) Saberes locales sobre percepción, clima e identificación de problemáticas relacionadas, 3) Procedimientos matemáticos y ajuste del algoritmo para calcular la vulnerabilidad y 4) articulación con instrumentos de planificación territorial. Como resultado, la vulnerabilidad en el escenario actual de la subcuenca río Las Piedras (Popayán) es medio baja (0,42), produc­to de la capacidad adaptativa generada por procesos sinérgicos desarrollados entre los actores locales; en contraste, la subcuenca del río Michicao (Cajibío) presenta una vulnerabilidad media alta (0,54), debido a la desarticulación social, baja presencia institucional y nula inversión ambiental