bluuebunny/crossref_metadata_2025_split huggingface dataset:
Moving average quality control of routine chemistry and hematology parameters – a toolbox for implementation
Authors: van Andel Esther , Henricks Linda M. , Giliams Alex P.M. , Noordervliet Richard M. , Mensink Willemina J. , Filippo Dionne , van Rossum Huub H. , Cobbaert Christa M. , Gillis Judith M.E.P. , Schenk Paul W. , den Elzen Wendy P.J. 
Published: August 2022

Abstract

Objectives
Moving average quality control (MA QC) is a patient-based real-time quality control system. Advantages compared to conventional periodic internal quality control (IQC) include absence of commutability problems and continuous monitoring of performance. We implemented MA QC for multiple routine hematology and chemistry parameters. We describe the evaluation process and provide practical tools to aid MA QC implementation.

Methods
Nine parameters (serum sodium, calcium, bicarbonate and free thyroxine, hemoglobin [Hb], mean corpuscular volume, mean corpuscular hemoglobin concentration [MCHC], reticulocyte count and erythrocyte sedimentation rate [ESR]) were chosen for initial consideration. Using data extractions from the laboratory information system (LIS; General Laboratory Information Management System), evaluation of usefulness and optimization of MA QC settings was performed using bias detection curves. After this, MA QC settings were incorporated in our LIS for further evaluation and implementation in routine care.

Results
Three out of nine parameters (Hb, ESR, and sodium) were excluded from MA QC implementation due to high variation and technical issues in the LIS. For the six remaining parameters, MA QC showed added value to IQC and was therefore implemented in the LIS. For three parameters a direct MA alarm work-up method was set up, including newly developed built-in features in the LIS. For the other parameters, we identified MA utilization beyond real-time monitoring.

Conclusions
Implementation of MA QC has added value for our laboratory setting. Additional utilization beyond real-time QC monitoring was identified. We find MA QC especially useful for trend monitoring, detection of small shifts after maintenance and inter-analyzer comparisons.
A high angle stable and polarization symmetric dual band reconfigurable frequency selective surface
Authors: Shah Gulab , Abidin Zain Ul , Cao Qunsheng 
Published: August 2022

AbstractA dual band reconfigurable active frequency selective surface is designed which resonates at 2.5 and 3.6 GHz as transmission pole frequencies. Lower and upper pass bands have −3 dB bandwidths of 0.4 and 0.5 GHz, respectively. Two notch frequencies are configured from 4.71 to 3.5 GHz and from 2.78 to 2.45 GHz. Dimensions of the unit cell are optimized toλ0/10 calculated at the lowest resonance. The proposed design exhibits insignificant variation at oblique excitation angles until 75° of dual polarized plane wave. An equivalent circuit model is developed for optimization and vivid understanding of the structure behaviour. A prototype of the designed structure is fabricated and the measured response is in satisfactory agreement with the simulated transmission response. High angle stability, low insertion loss at both the transmission pole frequencies, dual band pass/stop tuning for single and dual polarized wave with use of only two varactor diodes are eminent features of the design.
Does dexamethasone inhibit glucose oxidase: an analysis in kinetics and molecular study
Authors: Majd Edris , Minai-Tehrani Dariush , Mollasalehi Hamidreza 
Published: August 2022

Abstract

Objectives
Glucose oxidase is an enzyme that is widely used in biosensors, especially kits for measuring blood sugar. Many diabetics use this type of kit to determine their blood sugar level. Aspergillus niger is the most important source of glucose oxidase for use in biosensors. Diabetes causes secondary diseases in patients for which medications are prescribed to improve them. Dexamethasone, a corticosteroid, is one of the drugs prescribed to diabetics to cure some secondary diseases. In this study, the effect of this drug on glucose oxidase was investigated from a kinetic and molecular point of view.

Methods
In this study, the kinetics of drug binding to the enzyme was measured and the type of inhibition was determined by Lineweaver-Burk plot. The Ki value of the drug was determined by drawing the secondary curve. Using fluorescence spectrophotometry and molecular docking, the binding of the drug to the enzyme was confirmed.

Results
The results showed that the drug inhibits the enzyme non-competitively. Determining the kinetics parameters of the drug-enzyme interaction showed that the drug acts as a potent inhibitor. Study at the molecular level by fluorescence spectrophotometer showed that the drug attachment alters the enzyme conformation to more compaction. In silico results showed that the drug is placed between two helices that are outside the active site and binds to the enzyme by three hydrogen bonds.

Conclusions
The result of this study is useful because it suggests that in diabetic patients taking dexamethasone, the amount of glucose declared by the kit may not be real due to the inhibition of glucose oxidase.
The crystal structure of diaqua-bis(pyrazolo[1,5-a]-pyrimidine-3-carboxylato-κ2
N,O)zinc(II), C14H12N6O6Zn
Authors: Kong Yang , Wang Chang-Zhao 
Published: August 2022

Abstract
C14H12N6O6Zn, monoclinic, P21/n, a = 7.0347(6) Å, b = 12.8467(7) Å, c = 9.0017(6) Å, β = 112.525(9)°, V = 751.45 (10) Å3, Z = 2, Rgt
(F) = 0.029, wRref
(F
2) = 0.074, T = 293 K.
(Im)politeness on Facebook during the Covid-19 pandemic
Authors: Tsoumou Jean Mathieu 
Published: August 2022

AbstractDigital discourse has emerged as a substantial focus of interest within the pragmatic field. Specifically, (im)politeness practices on social media have increasingly received scholarly attention in the last decade (Tagg, Caroline, Philip Seargeant & Amy Aisha Brown. 2017. Taking offence on social media. Conviviality and conviviality and communication on Facebook. Switzerland: Springer Nature, Palgrave McMillan; Tsoumou, Jean Mathieu. 2020. Analyzing speech acts in politically related Facebook communication. Journal of Pragmatics 167. 80–97). However, research combining COVID-19, Facebook and (im)politeness in a politically polarizing context is still scarce. This paper is an analysis of (im)politeness in Facebook comments posted as reactions to Giuliani’s COVID diagnosis. Thus, by combining quantitative and qualitative approaches, the aim of the present paper is twofold: On the one hand, it intends to further our understanding of the manifestation of (im)politeness practices on Facebook through an analysis of reactive comments to Giuliani’s Covid-19 diagnosis on BBC news Facebook page. On the other hand, the paper aims to examine how the struggle between impoliteness and politeness divides Facebook users between sympathizers and detractors of the patient. Through a metadiscursive analysis, the identified (im)politeness items are distributed in an uneven fashion, with impoliteness-oriented items prevailing as the dominant macro category against politeness-oriented ones. The findings suggest that users employ different strategies to express or intensify (im)politeness, favoring explicit expressions of impoliteness such as redress/agreement, insults, pointed criticisms/complaints, unpalatable questions and/or presuppositions over others like threats.
Do Mothers and Fathers in Germany Really Prefer a Traditional Division of Labor? The Impact of Working Hours on Life Satisfaction Reconsidered
Authors: Heyne Stefanie , Wolbring Tobias 
Published: August 2022

Abstract
This study critically reexamines previous results on the effects of working hours on life satisfaction. First, we replicate the original results which suggest that a traditional division of labor maximizes fathers’ and mothers’ well-being. Loosening parametric restrictions, avoiding confounding by childbirth, and taking East-West differences into account in a second step, we find that (1) fathers are most satisfied when working between 35 and 60 hours per week, (2) mothers are more satisfied with their life when working at least ~25 hours per week as compared to not working, and (3) different arrangement of labor division among mothers and fathers lead to similar levels of life satisfaction. Thus, in contrast to what has been suggested by the original study, our replication reveals that the male breadwinner model is not the sole way to maximize parents’ well-being.
Traducción y adaptación transcultural del Constant-Murley Score al español de la Argentina
Authors: Gómez Diego , Dainotto Tamara , Moya Daniel , Patiño Juan Martín 
Published: August 2022

Introducción: Pocos cuestionarios para cuantificar y categorizar las limitaciones funcionales subjetivas y objetivas en la patología de hombro han sido traducidos al español de la Argentina.
Objetivo: Realizar la estandarización, traducción y adaptación transcultural del Constant-Murley Score al español de la Argentina.
Materiales y Métodos: La adaptación cultural se realizó siguiendo las etapas propuestas en la guía de la International Society of Pharmacoeconomic and Outcomes Research que establece las directrices para la traducción y adaptación cultural de medidas reportadas por los pacientes.
Resultados: La versión traducida al español fue evaluada mediante entrevistas cognitivas en dos etapas. Posteriormente se reformularon preguntas para el mejor entendimiento de los elementos y sus opciones de respuesta y, dentro de cada apartado, se realizaron modificaciones específicas.
Conclusión: Se logró realizar la traducción y adaptación transcultural del Constant-Murley Score, con lo que se obtuvo una herramienta para aplicar en la población argentina con patologías de hombro.
Técnica de Livani-Belangero (MIPO) en el tratamiento de las fracturas diafisarias de húmero. Experiencia latinoamericana en tres centros hospitalarios
Authors: Enriquez Romo Pablo , Palacios Fantilli Jesús , Faiad Piluski Paulo César , Castillo Rodriguez Carlos Humberto , Lech Osvandré 
Published: August 2022

Objetivo: Evaluar los datos demográficos, como edad, sexo, profesión, lado afectado, lesión única o múltiple, tipo de material utilizado, tiempo de cicatrización ósea y posibles complicaciones de los pacientes con fracturas diafisarias de húmero tratados mediante la técnica MIPO en tres centros hospitalarios de Ecuador, Paraguay y Brasil.
Materiales y Métodos: Estudio retrospectivo, longitudinal, observacional de los datos de 133 pacientes recolectados en tres Servicios: de Quito (Ecuador), Asunción (Paraguay) y Passo Fundo (Brasil). Se compararon las distribuciones entre diferentes Servicios mediante la prueba x2 de Pearson.
Resultados: La edad de los pacientes varió entre 17 y 76 años, con una media de 36 años. El tiempo promedio hasta la consolidación fue de 11 semanas (126 de 132 pacientes). Predominó el sexo masculino (70,45%), el lado derecho era el más afectado (55,3%), la mayoría de las fracturas eran únicas (85,61%), se logró la consolidación en el 95,45%. Solo el 9,09% tuvo complicaciones y el 6,82% fueron severas. El 87,12% no tuvo complicaciones; el 0,76% sufrió neuropraxia posquirúrgica; el 3,03%, infección y el 4,55%, seudoartrosis.
Conclusión: Con la técnica MIPO para el tratamiento de las fracturas diafisarias de húmero, las tasas decomplicaciones y de morbilidad son bajas, y la tasa de consolidación es buena.
Tenodesis suprapectoral del bíceps. Resultados clínicos
Authors: Patiño Juan Martín , Cabrera Enrique Sebastián 
Published: August 2022

Objetivo: Evaluar los resultados de la tenodesis suprapectoral mediante un miniabordaje en una serie de pacientes con lesión SLAP y desgarros completos de la porción larga del bíceps, y compararlos con los valores prequirúrgicos.
Materiales y Métodos: Se incluyeron pacientes adultos tratados con dicha técnica entre 2019 y 2020, y un seguimiento mínimo de un año. Se registraron las características demográficas, la indicación de cirugía, el retorno a las actividades consideradas habituales por el paciente y las complicaciones. Se utilizó el puntaje ASES para hombro, y se midió la movilidad activa del hombro afectado. Además, se le preguntó al paciente si retomó la actividad que consideraba habitual, con opciones “sí” o “no”. Se consignó si los pacientes reconocían un evento traumático con el inicio de los síntomas y se registró el diagnóstico con el que se llegó a la cirugía.
Resultados: Se evaluó a 8 pacientes (7 hombres), con una mediana de la edad de 42.5 años. El seguimiento fue de 17 meses (RIC 13.5-21.5). Seis (75%) tenían diagnóstico de lesión SLAP tipo II y dos (25%), de desgarro completo. Seis pacientes (75%) asociaron los síntomas con un evento traumático. Las medianas de los rangos de movilidad finales fueron: flexión 180° (RIC 170°-180°), rotación interna 65° (RIC 60°-75°) y rotación externa 70° (RIC 5°-87,5°).
Conclusión: La tenodesis suprapectoral tras una tenotomía artroscópica para casos de lesión SLAP tipo II o de desgarros completos de la porción larga del bíceps resultó una técnica segura y con resultados funcionales.
Sol-gel synthesis of iron catalysers supported on silica and titanium for selectively oxidising methane to formaldehyde
Authors: Guerrero Fajardo Carlos Alberto , Sánchez Castellanos Francisco José , Roger Anne Cécile , Courson Claire 
Published: August 2022

Iron materials supported on silica were prepared by the sol-gel method for evaluating catalytic activity in selective oxidation of methane to formaldehyde. Four catalysts were prepared, one corresponding to the silica support (catalyst 1S), another to the titanium support (catalyst 1T) and two more having 0.5% weight iron loads, one for the silica support (catalyst 2FS) and the last one the titanium support (catalyst 2FT). The higher BET areas were 659 and 850 m2/g for catalysts 1S and 2FS, respectively while catalysts 1T and 2FT displayed areas of 65 and 54 m2/g, respectively. Scanning and transmission electronic microscopy displayed an amorphous structure in the silica-supported materials while titanium-supported materials displayed dense materials having defined structure. X-ray diffraction confirmed the silica’s amorphous structure in 1S and 2FS catalysts and displayed the 1T and 2FT catalysts’ anatase structure. The programmed temperature reduction for the 1S and 2FS catalysts did not display reducible species, while displaying hydrogen consumption peaks related to Fe3O4 reduction to α-Fe via FexO route for 1T and 2FT catalysts. The electronic spectroscopy X-ray photo confirmed the Fe(III) specie as having 710.6 e.V binding energy for both 2FS and 2FT catalysts. Catalytic activity was carried out at atmospheric pressure in a quartz reactor, reaction mixture as CH4/O2/N2 =7.5/1/4 at 400-800°C temperature range. The reaction products were analysed by gas chromatography on Hayesep R and T columns using 5Å molecular screening. The best response for selective oxidation of methane to formaldehyde was displayed by the 2FS catalyst with 3.4% mol methane conversion at 650°C, 11.9% mol formaldehyde selectivity and 0.0211 g HCHO/Kg catalyst yield.
Mathematical models of membrane fouling in cross-flow micro-filtration
Authors: Ortíz Jerez Mónica Jimena , Vélez Pasos Carlos Antonio , Franco Mejía Edinson 
Published: August 2022

The greatest difficulty arising during cross-flow micro-filtration is the formation of a cake layer on the membrane surface (also called fouling), thereby affecting system performance. Fouling has been related to permeate flux decay resulting from changes in operating variables. Many articles have been published in an attempt to explain this phenomenon but it has not yet been fully understood because it depends on specific solution/membrane interactions and differing parameters. This work was aimed at presenting an analytical review of recently published mathematical models to explain fouling. Although the reviewed models can be adjusted to any type of application, a simple “concentration polarisation” model is advisable in the particular case of tropical fruit juices for describing the insoluble solids being deposited on membrane surface.
Analysing the Diana Turbay CAMI emergency and hospitalisation processes using an Arena 10.0 simulation model for optimal human resource distribution
Authors: Pantoja Rojas Liliana Maria , Garavito Herrera Luís Antonio 
Published: August 2022

This document presents a simulation model describing the current emergency and hospitalisation procedure for the Diana Turbay Immediate Medical Attention Centre (CAMI), a first level health-providing entity, being a dependency of the state Rafael Uribe Uribe hospital (a social entity) in Bogotá (Colombia). A summary of the study was made as well as an overall record of activities being carried out in current attention in the emergency and hospitalisation area and proposals for improving conditions for attending patients and helping to a optimise the institution’s resources in the aforementioned area. The foregoing was used for contrasting waiting times, the number of people queuing and how personnel were being used, aimed at structuring the triage procedure presented by the Rafael Uribe Uribe hospital’s Public Management and Self-control office as they wanted to implement such model within the framework of CAMI’s Remodeling and Extension project. Arena 10.0 simulation software was thus used for helping to measure the impact of such decisions on an organisation before implementing them; different scenarios were thus designed for evaluating the feasibility of reducing waiting times and the number of people queuing, different alternatives being tested regarding timetables and the availability of back-up resources, thereby revealing patients’ different attention and waiting times.
Oxidising agent and catalyst chirality effect on epoxidation of R-(+)- Limonene using Jacobsen-type catalysts
Authors: Reyes Calle Juliana , Cubillos Lobo Jairo Antonio , Montes de Correa Consuelo , Villa Holguín de P. Aída Luz 
Published: August 2022

The oxidising agent effect on R-(+)-Limonene epoxide diastereoselectivity using chiral and achiral Jacobsen’s type catalysts is presented. The type of oxidising agent strongly influences diastereoselectivity. Moderate diastereomeric excesses were achieved in the presence of oxidising agents prepared in situ but in the absence of catalyst (23% for DMD and 29% for O2/pivalaldehyde). Similar diastereomeric excesses were obtained with both chiral and achiral catalyst when the oxidising agents were prepared in situ; 56% and 50% excesses were obtained when using DMD for the chiral and achiral catalyst (respectively) and 38% using O2/pivalaldehyde for both catalysts. Diastereomeric excesses were not observed in the absence of catalyst when using commercial oxidising agents; the chiral catalyst presented larger diastereomeric excesses than its achiral counterpart: 65% and 38% excess using NaOCl for the chiral and achiral catalyst, respectively, and 79% and 39% using m-CPBA for the chiral and achiral catalyst, respectively. This suggests that at least one oxidant species, different from the conventionally accepted (MnV(oxo)), might be involved in this catalytic process. A modification of the traditional catalytic cycle is proposed considering the type of oxidising agent. The catalyst’s chiral centre appears to govern asymmetric induction when commercial oxidising agents are used, whereas the R-(+)-Limonene chiral centre appears to govern asymmetric induction in the presence of
in situ-prepared oxidising agents. On the other hand, the chemical stability of Jacobsen’s catalyst improved when in situ produced DMD was used as oxidising agent.
Modelling the kinetics of thin-layer yam (dioscorea rotundata) drying
Authors: Montes Montes Everaldo Joaquín , Torres Gallo Ramiro , Andrade Pizarro Ricardo David , Pérez Sierra Omar Andrés , Marimon Escobar José Luis , Meza Herazo Isabel Inés 
Published: August 2022

Thin-layer yam (varieties 9811-089 and 9811-091) drying was evaluated in a laboratory-type dish dryer at 45°C, 55°C and 70°C and 1 m/s average air speed in the Universidad de Cordoba’s Applied Engineering laboratory. The samples were 3.19 cm long, 0.5 cm thick, in 0.5x3x5 cm slices. The effects of temperature, variety and geometry on drying-time were evaluated using a completely random factorial adjustment design: temperature (45°C, 55°C and 70°C), geometry (slices and fillets) and variety (9811-089 and 9811-091). Three repetitions were made per treatment, producing a 28.15% reduction in drying time at 70°C. Drying curves were constructed from the obtained results; it was observed that drying took place during the decreasing period, proving that diffusion was the mechanism involved in Discorea rotundata drying for the studied varieties. Drying curves were adjusted to Page, diffusion, Thompson, Newton, modified Page, Henderson and Pabis mathematical models. The logarithmic model (determined by determination coefficient (R2)) estimated mean error (SE) and relative mean deviation (%P), showing that the logarithmic model better described the drying process (R2 ≥ 99.17 and SE ≤ 0.0299).
Revisión de la modificación química del almidón con ácidos orgánicos
Authors: Peñaranda Contreras Oscar Iván , Perilla Perilla Jairo Ernesto , Algecira Enciso Néstor Ariel 
Published: August 2022

La obtención de un material biodegradable a partir de la reacción del almidón con ácidos orgánicos tiene gran interés debido a que conllevaría a la generación de nuevos materiales con propiedades físicas y químicas que podrán utilizarse ampliamente en las industrias de la química fina, cosmética y alimentos. Así mismo, el almidón modificado, al poseer carácter biodegradable, ayudaría a la disminución de contaminantes de residuos sólidos. Este artículo presenta una revisión de algunos estudios sobre las modificaciones de los almidones con ácidos orgánicos y las aplicaciones en los sectores de la industria química.
Web service composition: a semantic web and automated planning technique application
Authors: Guzmán Luna Jaime Alberto , Ovalle Carranza Demetrio Arturo 
Published: August 2022

This article proposes applying semantic web and artificial intelligence planning techniques to a web services composition model dealing with problems of ambiguity in web service description and handling incomplete web information. The model uses an OWL-S services and implements a planning technique which handles open world semantics in its reasoning process to resolve these problems. This resulted in a web services composition system incorporating a module for interpreting OWL-S services and converting them into a planning problem in PDDL (a planning module handling incomplete information) and an execution service module concurrently interacting with the planner for executing each composition plan service.
Characterising the human-structure interaction effect of the Olympic Stadium in Cali, Colombia
Authors: Ortiz Albert Ricardo , Gómez Daniel , Thomson Peter 
Published: August 2022

This paper presents the results of analysing the human-structure interaction effect of the Olympic Stadium in Cali, Colombia. Acceleration in the southern and western grandstands due to ambient vibration, free vibration and forced vibration tests were measured during football matches and musical performances. The data was processed using the power spectrum and time-frequency distribution, thus characterising the crowd motion for each of these events. A laboratory setup consisting of a rigid single stand was tested for characterising the jumping and damping effect of a person with regard to their posture. The loads obtained from such characterisation were incorporated into a finite element model of the southern and western grandstands to calculate the structures’ structural response. A coupling effect was observed between the loads caused by the crowd and the corresponding structural response. An increase of up to 200% in the damping of the human-structure system was observed when the structure was fully occupied by a crowd. Colombian national building code provisions for the dynamic loading of structures due to crowds are discussed.