bluuebunny/crossref_metadata_2025 huggingface dataset:
ADSORPTION LIQUID CHROMATOGRAPHY OF ETHANOL ELUATE OF ETHANOL EXTRACT OF GREEN WALNUTS+LEAVES (LUGLANS REGIA L., NUT FAMILY - LUGLANDACEAC) (Message VI)
Authors: Platonov V. , Hadarcev Aleksandr , Suhih G. , Volochaeva M. , Dunaeva I.
Published: November 2021

The aim of the study was to perform column adsorption liquid chromatography in order to obtain ethanol eluate, after preliminary sequential elution of ethanol extract with solvents in the order of their polarity: n–hexane, toluene, chloroform, acetone; to study in detail the chemical composition of this eluate by chromatography-mass spectrometry and X-ray fluorescence spectroscopy, with the intensification of compounds determining the composition of eluate, obtaining their masses -spectra, structural formulas, determination of the nature of trace elements. Materials and methods of research. A detailed study of the chemical composition of acetone eluate of ethanol extract of walnuts+ leaves was carried out using column adsorption liquid chromatography, chromato-mass spectrometry and X-ray fluorescence analysis. The results and their discussion. The features of the chemical composition of ethanol eluate of the product of column adsorption liquid chromatography of ethanol extract were studied, the qualitative composition and quantitative content of compounds identified in the first one were established by chromatography-mass spectrometry. Mass spectra and structural formulas were obtained for 31 individual eluate compounds. Ethanol eluate is characterized by the following indicators of structural and group composition (mass. % of eluate): esters of phthalic acid - 52.14, silicon and sulfur-containing compounds, respectively - 20.19 and 6.43, hydrocarbons - 15.38, glycosides - 2.21, alcohols - 1.92, carboxylic acids - 1.07, sterols - 0.89. It is assumed that the pharmacological effect of ethanol eluate is mainly determined by a set of free carboxylic acids, as well as phthalic acid, formed as a result of biochemical and hydrological transesterification of its esters containing compounds, alcohols, glycosides and sterols. Organosilicon compounds during hydrolysis give silica in the size of nanoparticles, which play the role of carriers of the above compounds to various organs of a living organism, as well as drainage of blood vessels from the products of cell metabolism, for example, cholesterol, various fats, etc. A comparative characteristic of the chemical composition of all ethanol extract eluates was carried out, the effectiveness of column adsorption liquid chromatography was shown.
VISCOELASTIC RESPONSES OF MDF KERF STRUCTURES
Authors: DARNAL ARYABHAT , SHAHID ZARYAB , HAN JIWAN , MORENO MICHAEL , MULIANA NASTASIA
Published: November 2021

Medium-density fiberboard (MDF), comprised of chopped wood fibers and epoxy resin is commonly used in building construction. Given the current trend in freeform architecture, there is a need to generate complex geometric structures out of common construction materials. In this study, kerfing (relief cutting) method is used to create flexible and moldable shapes out of relatively rigid wood panels. The kerf panels can be easily formed into various complex shapes for outdoor facades and/or indoor paneling. The natural wood fibers and epoxy resin in MDF combine to produce a viscoelastic composite material that exhibits time-dependent changes in mechanical behavior, i.e., material stiffness/compliance. The work described herein comes from a study designed to develop a better understanding of the viscoelastic response of kerf unit cells and panels. Experimental creep tests were performed on dog-bone specimens under uniaxial loading conditions1in order to determine the viscoelastic response of the MDF. The experimental results were used to develop a model to be used in simulations. The simulations were carried out on a kerf unit cell, e.g., a square interlocked kerf, and kerf structures of complex geometries in order to investigate the time-dependent changes in the deformations of the kerf structures. From this study, a systematic design of kerf panels with complex shapes will be developed in order to minimize the time-dependent changes of kerf structures.
The Role of Augmented Reality Technologies in Supporting the Culture of National Belonging to the Arab Knowledge Society - Al-Azhar Mosque Library as a Model
Authors: Aldosoky Ayman
Published: November 2021

The Role of Augmented Reality Technologies in Supporting the Culture of National Belonging to the Arab Knowledge Society - Al-Azhar Mosque Library as a Model contemporary world of progressive knowledge development and successive and accelerating developments in the fields of information and communication technology, which have no limits and no substitute for them, Which directs the attention of leaders and managers of cultural and knowledge institutions to the need to take precaution towards working to achieve the goals and objectives of these institutions according to the vision and mission of each institution separately, especially the Arab national archives, which comes at the top of its goals and priorities to spread cultural awareness and support the values of national belonging to a society Arabic knowledge.In order to summon the data of the Arab civilization, whose light has dimmed for decades, and to keep pace with global developments in the fields of providing various sources of information in unconventional methods and methods to achieve the desired goals, such as augmented reality technologies that work to produce a complex display that mixes between the real visible scene and the virtual scene that is created by the computer The machine, which enhances the real scene with additional information in a modern and attractive way, the current study dealt with the following:- To value the role of technologies in supporting the culture of national belonging to the Arab knowledge society.- Activating the effect of archives and the role of archives in shaping the features of the Arab knowledge society.- Implementing a program using Augmented Reality techniques that deals with the events of the tripartite aggression in 1956, through productive materials that work to enhance the real visible scene, and by applying it to a number of selected sources for the project "Al-Azhar Memory" and some sources related to the subject of the study.- Directing the attention of archives leaders and managers to the need to work to support the values of national belonging among members of society.- Presenting an integrated proposal for activating the role of augmented reality technologies in archives and the role of Arab archives in order to support the culture of national belonging to the Arab knowledge society.
Racial Bias in Customer Service: Evidence from Twitter
Authors: Gunarathne Priyanga , Rui Huaxia , Seidmann Abraham
Published: November 2021

Detecting and reporting systemic racial bias is an essential step toward the eradication of racial discrimination in our society. Doing so not only requires society members to voice and share their anecdotal experiences, but also relies on researchers to document systematic statistical evidence of racial bias. This paper documents the first large-scale evidence of business-to-customer racial bias on digital platforms on which the perpetrators are individual employees who act on behalf of a company and the victims are customers. This is in contrast to existing studies of racial bias on digital platforms that focus on peer-to-peer marketplaces in which both the perpetrators and the victims are individuals acting independently and on their own behalf. By analyzing more than 57,000 social media customer complaints to U.S. airlines and leveraging a variety of analytics techniques, including text mining and facial recognition, we present quantitative evidence that African American customers are less likely to receive a response when they complain than otherwise similar White customers. Furthermore, our deep learning–based falsification test shows that the bias is absent without the race-revealing visual cue. This study offers a practical yet powerful recommendation for companies: conceal all customer profile pictures from their employees while delivering social media customer service.
STRATEGIC AND OPERATIONAL FOCUS OF HEALTH PREVENTION IN PRIVATE AND PUBLIC SECTOR ORGANISATIONS
Authors: Meixner Juliane
Published: November 2021

In this paper, with a view to the high levels of absence due to sickness and presenteeism, it is explored how management and team leadership can be integrated on a more sustained basis in health prevention. Private sector enterprises on one hand, and organisations in the public sector, on the other, pursue and prioritise in this aspect different approaches, which are traceable to their different traditions. Specifically in Germany in the public sector, the principle of due care has had a long tradition that grows out of social responsibility, which contrasts with the perspective of commercial enterprises that emphasises the economic aspect. The study undertakes to determine the particular strengths of each of the sectors and to demonstrate their different approaches. The examination refers in its methodology to qualitative social research. In the systemically structured survey design, Seventy six experts were approached with questions concerning different aspects such as corporate culture, business processes, organisational integration, qualification, risk assessments, and concrete actions in health prevention. Complementary to the expert survey, documents such as corporate guidelines and policies, management tools, results from risk assessments and employee surveys or quality offensives were referred to. This analysis supplied insights on how the declared health prevention policies in an organisation can be effectively implemented at the strategic and operational level in corporate culture and leadership culture with a long-term continuity, and which organisational prerequisites in the corporate hierarchy and corporate decision making and business processes may reinforce and sustain successful implementation of health prevention. Of particular importance in the process is operative management. For the sake of effective team involvement in own and team-specific health prevention, an eight-stage team feedback was devised, which includes elements of self-reflection and perception by others in an iteratively structured process.
HANDLING MULTI-LEVEL CLASSES IN THE CITY OF BATUMI
Authors: Diasamidze Ivdit , Tavadze Lali , Katamadze Natia
Published: November 2021

If we take into account the common teacher-centered or the one-book-fits-all approach, where the teacher is forced to focus on the middle level, many students at the top or bottom end of the language scale are left dissatisfied or demotivated. Once students are placed into a certain class they are regarded as being at much the same linguistic level in their foreign language, and a one-book-fits-all approach is often adopted in the classroom, where all students are required to work at the same pace and complete the tasks of the same difficulty. There are various scholarly approaches to the problem. This study aims to determine whether teachers are aware of possible techniques like differentiated work, dividing a class, letting students choose the task, other techniques, and what the frequency of their use is.

The survey was carried out among the teachers working at both higher education institutions and secondary schools to find out how often teachers refer to different techniques.

The results suggest that differentiated work requires much and thorough preparation on the part of a teacher, which becomes quite time-consuming at times. Therefore, teachers try to deal with mixed-level classes using mostly class division into groups or pairs. Moreover, teachers sometimes or almost rarely let their students choose what to do. A few teachers apply other techniques in their mixed-level classes. This discussion results in the following outcome – there is still the need to raise teachers’ awareness of the techniques to deal with students of different needs in class.
SPECIFICS OF TEACHING THE INVERSE RELATIONS BETWEEN THE ARITHMETIC OPERATIONS ADDITION AND SUBTRACTION DURING THE EDUCATION IN MATHEMATICS IN GRADE 1
Authors: Temnikova Maria
Published: November 2021

One of the fundamental knowledge in mathematics in Primary school is related to the arithmetic operations addition and subtraction. According to the educational programs in mathematics in the Republic of Bulgaria, students start studying these operations in grade 1.

The article presents theoretical concepts affecting studying the arithmetic operations addition and subtraction in the education in mathematics at a primary school.

The research work identified the specifics of studying the inverse connections between the arithmetic operations addition and subtraction in the education in mathematics for grade 1 are also presented. Some of the significant tasks with importance for discovering the relations between the forward operation addition and the reverse operation subtraction were proposed in the study. A new methodology system of work with tasks where these relations are used was developed and tested.

The author studied the knowledge, skills, and competencies of the grade 1 students to solve arithmetic operations addition and subtraction tasks. After the exit diagnostic, it was found out that the students of the class where the new methodology system of work was applied during their education in mathematics have got a higher level of knowledge and skills from competency Cluster Numbers in respect of the arithmetic operations addition and subtraction. 

The use of mathematical tasks with reverse relations between the arithmetic operations addition and subtraction help the students to develop both the overall mathematical knowledge and the logical thinking of the first-graders.
Truth revealed: Challenging the mythical narrative of the low-profit limited liability company
Authors: Toson Sonia J.
Published: November 2021

This article reviews the body of literature concerning low-pro t limited liability companies and conducts a critical analysis of the "aws" frequently cited in the literature as problematic within the form. Analysis of the low-pro t limited liability company (L3C) is conducted in the
larger, global context of social enterprise, with emphasis on the social purpose company of Belgium and the community interest company of the United Kingdom as points of comparison. Findings demonstrate that the most commonly stated criticisms of L3Cs are in fact inaccurate. A deeper critical
analysis of the form reveals that this choice of entity is advantageous on several levels for both social entrepreneurs and private charitable foundations. This piece furthers the literature by dispelling the myths surrounding L3Cs, providing counterarguments to the existing criticisms of
the form and providing the business community with accurate information regarding the bene ts of L3Cs for social enterprise
Social goals versus business necessity: The nature and determinants of innovation in nancial inclusion
Authors: Vik Pål , McEachern Morven G. , Curtis Joanna , Kane Kevin , Dayson Karl
Published: November 2021

Purpose: This study aims to explore the extent to which social innovation is prioritised among a sample of organisations promoting nancial inclusion through the provision of a ordable credit, advice and nancial education. Additionally, we seek to understand the nature of the
adopted innovation process and how this is perceived as in uencing social change (if at all).
 Methodology: This exploratory study uses a combination of qualitative, semistructured, face-to-face interviews with 35 managers in 29 di erent organisations and three focus groups
with 16 practitioners and stakeholders.
 Findings: Innovation processes are in the main, largely incremental as opposed to radical with organisations focusing on process-led innovations. More notably, most organisations found that they often lacked the required
social capital capacity, economic and technological resources and the necessary skills to develop, implement and capitalise on innovations, thus limiting the more radical forms of innovations.
 Implications: To enhance the capacity of smaller organisations promoting
nancial inclusion, there is signi cant potential to engage in more open, co-creational projects/partnerships to deliver greater social impact to vulnerable populations.
 Contribution: We contribute to the under-researched literature on social innovation by highlighting the
extent to which social innovation is given precedence within the sector promoting nancial inclusion. Given the contextual and organisational diversity of the sector, highlighting these behavioural practices and circumstances, enable researchers to theoretically advance social innovation theory
further and provide more practice-based guidance for organisations to successfully shape social change.
Fading noise reduction in distributed acoustic sensing using an optimal weighted average algorithm
Authors: Lu Yang , Hu Xiaoyang , Yu Zhijie , Zhu Qi , Meng Zhou
Published: November 2021

To the best of our knowledge, we present what we believe is a novel approach for fading noise reduction in distributed acoustic sensing (DAS). Rayleigh signals in multiple optical modes are collected by a phase-sensitive optical time-domain reflectometry system with a diversity detection scheme. An optimal weighted average algorithm is proposed to synthesize the phase demodulated from the Rayleigh signals, leading to the aggregate phase that presents acoustic signals with optimal fading noise reduction. The validity of the proposed approach is experimentally confirmed by comparison of the fading noise along a 12.8 km sensing fiber in a conventional DAS system and a DAS system that employs the proposed approach.
Leaky-mode long-period grating on a lithium-niobate-on-insulator waveguide
Authors: Jin Wei , Chiang Kin Seng
Published: November 2021

Lithium niobate on insulator (LNOI) is a promising platform for the construction of high-density integrated photonics circuits. In this paper, we propose compact long-period gratings (LPGs) formed on LNOI rib waveguides for achieving light coupling from the guide mode to the leaky mode. Our LPGs are polymer gratings coated on the surfaces of LNOI waveguides and can be designed to achieve strong mode coupling at specific resonance wavelengths for the TE-like and the TM-like polarization. By means of a numerical analysis, we find that the LPGs exhibit turning points in the phase-matching curves, which promises the realization of broadband wavelength filters and polarizers with such grating structures on the LNOI platform. To experimentally verify the theoretical results and demonstrate the LPG characteristics, we fabricate a number of LPG filters on LNOI rib waveguides, which include two broadband LPGs operating near the turning points: a TE-pass polarizer with a 20 dB extinction ratio over a bandwidth of 270 nm from 1430 to 1700 nm and a TM-pass polarizer with a 20 dB extinction ratio over a bandwidth of 90 nm from 1500 to 1590 nm. The insertion losses for the passing polarization are smaller than 2 dB in the C 

+

 L band. Our LPGs can serve as building blocks for the development of a wide range of integrated LNOI devices for application in on-chip signal processing.
A maChine and deep Learning Approach to predict pulmoNary hyperteNsIon in newbornS with congenital diaphragmatic Hernia (CLANNISH): Protocol for a retrospective study
Authors: Amodeo Ilaria , De Nunzio Giorgio , Raffaeli Genny , Borzani Irene , Griggio Alice , Conte Luana , Macchini Francesco , Condò Valentina , Persico Nicola , Fabietti Isabella , Ghirardello Stefano , Pierro Maria , Tafuri Benedetta , Como Giuseppe , Cascio Donato , Colnaghi Mariarosa , Mosca Fabio , Cavallaro Giacomo
Published: November 2021

Introduction

Outcome predictions of patients with congenital diaphragmatic hernia (CDH) still have some limitations in the prenatal estimate of postnatal pulmonary hypertension (PH). We propose applying Machine Learning (ML), and Deep Learning (DL) approaches to fetuses and newborns with CDH to develop forecasting models in prenatal epoch, based on the integrated analysis of clinical data, to provide neonatal PH as the first outcome and, possibly: favorable response to fetal endoscopic tracheal occlusion (FETO), need for Extracorporeal Membrane Oxygenation (ECMO), survival to ECMO, and death. Moreover, we plan to produce a (semi)automatic fetus lung segmentation system in Magnetic Resonance Imaging (MRI), which will be useful during project implementation but will also be an important tool itself to standardize lung volume measures for CDH fetuses.

Methods and analytics

Patients with isolated CDH from singleton pregnancies will be enrolled, whose prenatal checks were performed at the Fetal Surgery Unit of the Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico (Milan, Italy) from the 30th week of gestation. A retrospective data collection of clinical and radiological variables from newborns’ and mothers’ clinical records will be performed for eligible patients born between 01/01/2012 and 31/12/2020. The native sequences from fetal magnetic resonance imaging (MRI) will be collected. Data from different sources will be integrated and analyzed using ML and DL, and forecasting algorithms will be developed for each outcome. Methods of data augmentation and dimensionality reduction (feature selection and extraction) will be employed to increase sample size and avoid overfitting. A software system for automatic fetal lung volume segmentation in MRI based on the DL 3D U-NET approach will also be developed.

Ethics and dissemination

This retrospective study received approval from the local ethics committee (Milan Area 2, Italy). The development of predictive models in CDH outcomes will provide a key contribution in disease prediction, early targeted interventions, and personalized management, with an overall improvement in care quality, resource allocation, healthcare, and family savings. Our findings will be validated in a future prospective multicenter cohort study.

Registration

The study was registered at ClinicalTrials.gov with the identifier NCT04609163.
FACTUM 1: 1
Authors: Goffi Federica
Published: November 2021

The concept of facticity is under question, and a climate of post-truth affects global politics. The facticity of human design constructs is based on ‘solid’ evidence and actions and our making rest upon ethical responsibility for how we do things. As a way to become aware of the significance of chosen tools, their intentional and unintentional narrative capacity and bearing on design, this chapter raises awareness about the significance of chosen tools, their intentional and unintentional bearing on design, suggesting to reconnect — one by one — and 1:1 with the drawing’s ability to generate drawing-thinking and not mere illustrations of architecture. Designing drafting tools is herenin suggested to be an extension of the thinking that comes to define thinking-through-making as an act of resistance to the passive acceptance of ‘pre-packaged’ tools that dominate the design industry.
Ricardo Sánchez Ortiz de Urbina. Bibliografía
Authors: Falcón Luis Álvarez
Published: November 2021

En el presente texto se expone de modo sistemático una breve biografía del autor de nuestro monográfico y una bibliografía sistemática y cronológica. El documento pretende ser un instrumento de consulta y un recurso para el conocimiento de la obra del pensador español. En siete apartados, libros, artículos de revistas, traducciones, trabajos sobre el autor, tesis dirigidas, notas de prensa e intervenciones públicas, podrán encontrar el despliegue temporal del corpus de Urbina: cincuenta y ocho años de trabajo.
Situación actual de la filosofía fenomenológica
Authors: De Urbina Ricardo Sánchez Ortiz
Published: November 2021

El texto que podrán leer a continuación es la transcripción de la denominada Conferencia de Coimbra, en el contexto de la Jornada Internacional de Estudos Fenomenológicos, con el título “Em redor do Pensamento de Ricardo Sánchez Ortiz de Urbina”, celebrada en la Sala Vítor Matos de la Faculdade de Letras de la Universidade de Coimbra, el 6 de marzo de 2020, bajo el auspicio del Centro de Estudos Clássicos e Humanísticos (CECH – FLUC), la Associação Portuguesa de Filosofia Fenomenológica y el Proyecto de Investigación “Fenomenología del Cuerpo y Análisis del Dolor” (CSIC‑ Madrid). Se trata de un documento histórico y programático en el que se encuentra un diagnóstico de la situación actual de la filosofía. Entre sus líneas se expondrá el corpus de la obra completa del filósofo español, y autor de la Estromatología, Ricardo Sánchez Ortiz de Urbina. Las tesis presentadas abarcan los ámbitos de la ciencia contemporánea, de la política, de la moral, del arte y de la filosofía fenomenológica, como exigencia esta última de la necesidad de ampliación de la filosofía en nuestro tiempo.
Luzes e sombras nos Estudos Ibéricos
Authors: Isasi Santiago Pérez
Published: November 2021

Em 2011 teve lugar em Lisboa o encontro Looking at Iberia from a Comparative European Perspective, financiado pela European Science Foundation, no qual foi apresentada uma palestra intitulada “Iberian Studies: a state of the art and future perspectives”. Dez anos depois da apresentação original daquele texto, é provavelmente um bom momento para analisar em que sentido e até que ponto os Estudos Ibéricos avançaram nas linhas previstas em 2011. Trata-se, em definitivo, de realizar uma reavaliação crítica da evolução dos Estudos Ibéricos, depois de uma década de trabalho e desenvolvimento, de forma a identificar as suas forças e fragilidades, focar naquelas áreas nas quais existiu, até agora, um claro défice de investigação, e tentar contrariar as rotinas ou inércias estabelecidas ao longo destes dez últimos anos, para evitar que o campo dos Estudos Ibéricos se transforme, paradoxalmente, num novo mecanismo de consolidação dos cânones, narrativas e discursos dominantes.
Colheita de Inverno. Ensaio de teoria e crítica literárias Vítor Manuel De Aguiar e Silva. Coimbra: Edições Almedina, 2020 568 páginas. ISBN 9789724085678
Authors: Cardoso Bernardes José Augusto
Published: November 2021

Após o aparecimento, em 2010, de um volume de dispersos, não se contava que um novo livro do Doutor Aguiar e Silva pudesse vir a público, decorrida que foi apenas uma década.
O retrato grotesco em Historia de las Cuevas de Salamanca de Francisco Botello de Morais
Authors: Arellano Ignacio
Published: November 2021

Analisa-se neste artigo o modelo do retrato grotesco no contexto de uma acumulação de géneros e fórmulas burlescas na Historia de las cuevas de Salamanca, de Botello de Moraes, comentando os principais exemplos e mecanismos de composição caricaturesca, como a hipérbole, a animalização, a coisificação, a desintegração da figura humana ou a degradação satírica.
Magnetic Nanoparticles based on Natural Silica as a Methyl Ester Forming Acid Catalyst
Authors: Elmaria Falah Azizah , Jenie S. N. Aisyiyah
Published: November 2021

Natural silica has advantages in various fields such as catalysts, because it is easily obtained and applied in the chemical reaction process. The synthesis of natural silica-based magnetic acid catalyst, MSNP/SO42- aims to obtain a large yield from the reaction process between oleic acid and methanol to form methyl ester. Natural silica obtained from geothermal waste was washed with distilled water, then sol gel method was applied at  pH of 4-6 to obtain SiO2 nanoparticles. FeCl3 was added to achieve the magnetic properties, and the cetyl trimethyl ammonium bromide  (CTAB) is varied in order to attain optimal mesoporous size. Brunauer emmet teller (BET) results showed optimum results from 1: 2 molarity ratio between silica and CTAB with a surface area of 520.94 m2/g. The acidic properties were obtained by immersion using H2SO4 0.5 M. The catalyst were tested for the acidic and magnetic properties  using temperature programmed desorption ammonia (TPD-NH3) and vibrating sample magnetometer (VSM) characterization resulting intotal acidity of 0.2488 mmol/g and. softmagnetic type, respectively. The BET surface area  of the sulfate modified into MSNP/SO42-, was decreased by 114.44 m2/g. Application of MSNP/SO42- as a catalyst for forming methyl esters obtained a percentage of 85.41% yield based on the gas chromatography mass spectrometry (GC- MS) results.
Diverzitás és inklúzió jellemzői a Pécsi Tudományegyetemen
Authors: Varga Aranka , Vitéz Kitti , Széll Krisztián
Published: November 2021

Tanulmányunk támaszkodik azokra a hazai és nemzetközi vizsgálatokra, melyek bemutatják, miként vált a felsőoktatás jellemzőjévé a diverzitás, és ezzel összefüggésben tárgyalja az inkluzivitás kiépülésének gyakorlatát. Helyzetfeltáró kutatásunk során az inklúzió folyamatelvű modelljét alkalmazva arra voltunk kiváncsiak, hogy mi jellemzi a különböző hallgatói csoportokat a bemenet (bejutási lehetőségek), a folyamat (sikeres előrehaladás) és a kimenet (eredményességi mutatók) szempontjából a Pécsi Tudományegyetemen. Elemzésünk a 2010 és 2019 között képzéssel rendelkező hallgatókra (N = 68 602) és képzésekre (N = 83 067) terjedt ki, és a Neptunban elérhető adatokon alapult. Az elemzés háttérváltozója a diverz tanulói csoportok (előnyben részesítettek: tanulási-pszichés zavarosok, fogyatékosok, hátrányos helyzetűek, továbbá külföldiek), a kapott juttatások (ösztöndíj, kollégium) és az adott képzés státusza. Eredményeink idősorosan és karokra lebontva mutatnak rá a bemenet oldaláról bizonyos hallgatói csoportok visszaszorulására (pl. hátrányos helyzetűek), illetve létszámnövekedésére (külföldiek). Láthatóvá vált a különböző juttatások támogató ereje az előrehaladás során. A diplomaszerzési adatok alapján megállapítható, hogy minél magasabb fokú a képzés, annál hosszabb ideig és annál kevésbé sikeresen teljesítenek a bemenet során előnyben részesített hallgatói csoportok – rámutatva az intézményi inkluzivitás fejlesztésének szükségességére. Jelen kutatás az elemzett adatbázis legszembetűnőbb tendenciáira fókuszált, azonban az adatbázis további lehetőségeket rejt a vizsgált csoportok tanulási életútjának fókuszáltabb nyomon követésére, a fentiekben leírtak mögött meghúzódó okok egy részének feltárására is.
A konszignációs készletek jellemzői az ellátási láncban
Authors: Oláh Judit , Vad Veronika
Published: November 2021

Ennek a tanulmánynak a célja a készlettartáshoz és a konszignációs készletekhez kapcsolódó elméleti, szakirodalmi háttér bemutatása, a rendelkezésre álló konszignációs készletkezelést támogató információs technológiai lehetőségek feltárása, valamint vizsgálat közben a fejlődési lehetőségek és az eddigi fejlesztések ismertetése. A szerzők elemzik a konszignációs készletek ellátási láncba való integrálódásának előnyeit és hátrányait mind beszállítói, mind vevői oldalról, illetve az ellátási lánc által nyújtott lehetőségeket, eszközöket, melyek hatással vannak a készletekre. A konszignációs készleteket a vállalat nyilvántartásában jól elkülöníthetően kell megjeleníteni, hiszen azok a beszállítók tulajdonát képezik mindaddig, amíg felhasználásra, illetve értékesítésre nem kerülnek. Biztosítani kell a beszállítók felé a pontos készletnyilvántartást, elszámolást. Ahhoz, hogy ezeknek a feltételeknek megfeleljenek, szükség van egy informatikai rendszerre, amely lehetővé teszi a vállalat számára a beszállítóval szembeni kötelezettségeinek gyors és pontos teljesítését. Az információs technológiai eszközök (elektronikus adatcsere (EDI – Electronic Data Interchange) és internetalapú adatmegosztás) teszik lehetővé a gyors és naprakész információmegosztást a beszállítókkal. Növelik a hatékonyságot és segítik a készletoptimalizálást.
Prevalence of Gastrointestinal Symptoms in Severe Acute Respiratory Syndrome Coronavirus 2 Infection: Results of the Prospective Controlled Multinational GI-COVID-19 Study
Authors: Marasco Giovanni , Cremon Cesare , Barbaro Maria Raffaella , Salvi Daniele , Cacciari Giulia , Kagramanova Anna , Bordin Dmitry , Drug Vasile , Miftode Edgidia , Fusaroli Pietro , Mohamed Salem Youssef , Ricci Chiara , Bellini Massimo , Rahman M. Masudur , Melcarne Luigi , Santos Javier , Lobo Beatriz , Bor Serhat , Yapali Suna , Akyol Deniz , Sapmaz Ferdane Pirincci , Urun Yonca Yilmaz , Eskazan Tugce , Celebi Altay , Kacmaz Huseyin , Ebik Berat , Binicier Hatice Cilem , Bugdayci Mehmet Sait , Yağcı Munkhtsetseg Banzragch , Pullukcu Husnu , Kaya Berrin Yalınbas , Tureyen Ali , Hatemi İbrahim , Koc Elif Sitre , Sirin Goktug , Calıskan Ali Riza , Bengi Goksel , Alıs Esra Ergun , Lukic Snezana , Trajkovska Meri , Hod Keren , Dumitrascu Dan , Pietrangelo Antonello , Corradini Elena , Simren Magnus , Sjolund Jessica , Tornkvist Navkiran , Ghoshal Uday C. , Kolokolnikova Olga , Colecchia Antonio , Serra Jordi , Maconi Giovanni , De Giorgio Roberto , Danese Silvio , Portincasa Pietro , Di Stefano Michele , Maggio Marcello , Philippou Elena , Lee Yeong Yeh , Venturi Alessandro , Borghi Claudio , Zoli Marco , Gionchetti Paolo , Viale Pierluigi , Stanghellini Vincenzo , Barbara Giovanni ,   and the GI-COVID19 Study Group
Published: November 2021

INTRODUCTION:

Gastrointestinal (GI) symptoms in coronavirus-19 disease (COVID-19) have been reported with great variability and without standardization. In hospitalized patients, we aimed to evaluate the prevalence of GI symptoms, factors associated with their occurrence, and variation at 1 month.

METHODS:

The GI-COVID-19 is a prospective, multicenter, controlled study. Patients with and without COVID-19 diagnosis were recruited at hospital admission and asked for GI symptoms at admission and after 1 month, using the validated Gastrointestinal Symptom Rating Scale questionnaire.

RESULTS:

The study included 2036 hospitalized patients. A total of 871 patients (575 COVID+ and 296 COVID−) were included for the primary analysis. GI symptoms occurred more frequently in patients with COVID-19 (59.7%; 343/575 patients) than in the control group (43.2%; 128/296 patients) (P < 0.001). Patients with COVID-19 complained of higher presence or intensity of nausea, diarrhea, loose stools, and urgency as compared with controls. At a 1-month follow-up, a reduction in the presence or intensity of GI symptoms was found in COVID-19 patients with GI symptoms at hospital admission. Nausea remained increased over controls. Factors significantly associated with nausea persistence in COVID-19 were female sex, high body mass index, the presence of dyspnea, and increased C-reactive protein levels.

DISCUSSION:

The prevalence of GI symptoms in hospitalized patients with COVID-19 is higher than previously reported. Systemic and respiratory symptoms are often associated with GI complaints. Nausea may persist after the resolution of COVID-19 infection.
KRAMA LANGUAGE AS EDUCATIONAL COMMUNICATION AT JUNIOR HIGH SCHOOL ISLAM PRESTASI AL MUBTADI-IEN BANTUL IN ISLAMIC EDUCATION PERSPECTIVE
Authors: Abdullah Kafi Moh Iqbal , Sukiman
Published: November 2021

Cases of verbal bullying are still prevalent among students in schools. Therefore, efforts are needed through various approaches to overcome the problem. One of the efforts that can be done is through the habituation of krama language in the school environment. This article aims to analyze the application of krama language as an educational communication ethic in Junior High School Islam Prestasi Al Mubtadi-ien Bantul in the perspective of Islamic education. The important issue discussed is the purpose and form of application of manners language as educational communication and its impact on the formation of student behavior seen from the perspective of Islamic education. This research is qualitative research using a phenomenological approach in Junior High School Islam Prestasi Al Mubtadi-ien Bantul, Yogyakarta. Data collection using observation, interviews, and documentation. Data analysis uses data reduction, data exposure, and inference/verification measures. Data collection using observation, interviews, and documentation. Data analysis uses data reduction, data exposure, and inference/verification measures. The results of this study showed: First, the form of educational communication ethics applied in Junior High School Islam Prestasi Al Mubtadi-ien Bantul is based on the cultural values of krama language carried out during the implementation of the learning process in the classroom and in interactions outside the classroom in the school environment. The application of krama language aims to shape student behavior and participate in preserving the culture of krama language as is done in a pesantren environment. Second, the application of communication ethics using Javanese culture krama in Junior High School Islam Prestasi Al Mubtadi-ien Bantul is considered to have provided positive benefits and impacts for students. Third, from the perspective of Islamic education, the application of krama language culture in Junior High School Islam Prestasi Al Mubtadi-ien Bantul is very relevant. Islam is very concerned about the ethical issue of communication. Islam teaches the delivery of information messages to citizens using good language, friendly and polite.
DEVELOPMENTAL CHARACTERISTICS INFLUENCED BY FLOW IN PSYCHOLOGY
Authors: Noviansah Ahmad
Published: November 2021

Development is a pattern of change that begins at the time of conception (conception) and berkanjut throughout the life span in the development of children, it must be instilled character teaching in the character teaching is very important, because the ideal society is when the community has a good character and character. Quality characters need to be touched and nurtured from an early age. Childhood ages 0 to 6 years is a golden priode of growth, this is the most appropriate time to leverage and develop all potentials in the child. The development of this potential is not only from the intellectual sis, but also develops other aspects such as character.
Innovation Behavior of Salvadoran Food & Beverage Industry Firms
Authors: Peraza Castaneda Elías Humberto , Aleixandre Mendizábal Guillermo
Published: November 2021

This paper presents a quantitative analysis of the external and internal determinants that affect the innovation dynamics of a low-tech sector in a less developed economy; the food & beverage (F&B) industry in El Salvador. The empirical framework relies on a multivariate probit analysis applied to data from El Salvador’s First National Innovation Survey 2013. The results show that R&D activities, use of industrial protection by F&B industry firms as well as relationships between firms and knowledge agents are useful for technological innovations while the qualifications of firms’ workforce and the relationships between firms and value chain agents prove useful for non-technological innovations. In addition, firms can take advantage of their size and location in the department of San Salvador to promote product innovation, whereas firms’ maturity is seen to be a disadvantage. Based on the results to emerge, the role that public science, technology and innovation (STI) policies as well as STI business strategies can play in the Salvadoran agri-food industry innovation system is seen to be huge.
The Frequency of Emotions and Emotion Variability in Self-regulated Learning: What Matters to Task Performance?
Authors: Li Shan , Zheng Juan , Lajoie Susanne P.
Published: November 2021

Emotion variability and its relationship to performance is an underexplored area of research both inside and outside the realm of medical education. We address this gap by examining the relative importance of the frequency of emotions and emotion variability that occurred in specific phases of self-regulated learning (SRL) in predicting students’ performance. Specifically, 23 medical students were recruited to complete the task of diagnosing a virtual patient in a hospital-simulated environment. Students’ facial expressions were video-recorded and were classified into basic emotions. We calculated the frequency of emotions and emotion variability at each SRL phase: forethought, performance, and self-reflection. Findings revealed that both the frequency of emotions and emotion variability influenced clinical reasoning performance, but they functioned differently in different SRL phases. Moreover, emotion variability negatively predicted performance regardless of which SRL phases it was tied to. This study helps shift the focus of research from the effect of emotions on performance to the joint effect of emotion and emotion variability, which has the potential to address the inconsistency in emotion-related research findings. Although we situate the study in the context of clinical reasoning, findings from this research inform the research of emotion in learning and instruction for other domains. Furthermore, this study lays the foundation for future advances in emotion-related study designs since the introduction of emotion variability leaves many questions unanswered and shows promise for new research directions.
Inadequate design of mutation detection panels prevents interpretation of variants of concern: results of an external quality assessment for SARS-CoV-2 variant detection
Authors: Buchta Christoph , Camp Jeremy V. , Jovanovic Jovana , Radler Ulla , Benka Bernhard , Puchhammer-Stöckl Elisabeth , Müller Mathias M. , Griesmacher Andrea , Aberle Stephan W. , Görzer Irene
Published: November 2021

Objectives

Mutation-specific PCR assays have quickly found their way into laboratory diagnostics due to their capacity to be a fast, easy to implement and high-throughput method for the detection of known SARS-CoV-2 variants of concern (VoCs). However, little is known about the performance of such assays in routine laboratory analysis.

Methods

The results reported in a recent round of an external quality assessment (EQA) scheme for SARS-CoV-2 mutation-specific PCR were retrospectively analyzed. For the determination of individual variant-specific sequences as well as for the interpretation results for certain virus variants, correct, incorrect, and unreported results were evaluated, and their possible causes were investigated.

Results

A total of 34 laboratories participated in this study. For five samples containing the VoC Alpha + E484K, Beta, Gamma, Delta, or B.1.1.318 (as a variant of interest), 848 results for SARS-2-CoV mutation detection were reported, 824 (97.2%, range per sample 88–100%) of which were correct. Melting curve assays gave 99% correct results, real-time RT-qPCR 94%, microarray-based assays 100%, and MALDI-TOF MS 96%. A total of 122/167 (73%) reported results for SARS-CoV-2 variant determination were correct. Of the 45 inconclusive or incorrect results, 33 (73%) were due to inadequate selection of targets that did not allow identification of contemporary VoC, 11 (24%) were due to incorrect results, and one (3%) was due to correct results of mutation-specific PCR.

Conclusions

Careful and up-to-date selection of the targets used in mutation-specific PCR is essential for successful detection of current SARS-CoV-2 variants.
Potency and selectivity indices of Myristica fragrans Houtt. mace chloroform extract against non-clinical and clinical human pathogens
Authors: Abutaha Nael , Al-Keridis Lamya Ahmed , Mohamed Rania Ali El Hadi , AL-mekhlafi Fahd A.
Published: November 2021

This study assessed the antimicrobial, toxicity, and phytochemical profiles of Myristica fragrans extracts. Different solvent extracts were tested for antimicrobial activity against clinical and reference microbial strains, using disc and well diffusion assays and microdilution techniques. Antioxidant potential was investigated using 2,2-diphenyl-1-picryhydrazyl (DPPH) assays. Cytotoxicity assay was conducted against human umbilical vein endothelial cells (HUVECs) using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Acute toxicity was assessed in laboratory Swiss albino mice at a single dose of 2,000 mg/kg body weight for 14 days. To assess the phytochemical constituents, spectrophotometric and gas chromatography-mass spectrometry (GC-MS) methods were used. The chloroform extract revealed antimicrobial potencies against the Gram-positive bacteria and C. albicans with minimum inhibitory concentrations. In the DPPH assay, the IC50 value of the chloroform extract was determined to be 1.49 mg/mL. The phenolic and flavonoid contents were 26.64 ±  0.1 mg of gallic acid equivalents/g and 8.28  ± 0.1 mg quercetin equivalents/g, respectively. The IC50 value was determined to be 49 µg/mL against the HUVEC line. No mortality or morbidity was observed. GC-MS analysis indicated the presence of 2-cyclopenten-1-one (44.72%) as a major compound. The current results provide scientific support for the use of M. fragrans in folk medicine.
What determines governments’ response time to COVID-19? A cross-country inquiry on the measure restricting internal movements
Authors: De Simone Elina , Mourao Paulo Reis
Published: November 2021

After the appearance of the first COVID-19 cases and deaths, countries’ responses were enacted at different points in time. This paper explores the factors behind the timeliness of travel restriction policies at the onset of the pandemic. Using instrumental variable techniques on a sample of 149 countries, our empirical exercise shows that while urban population and political stability are conducive to a prompt activation of a government’s lockdown policy after initial cases, a country’s wealth and the rule of law may produce an opposite effect. When the time from first deaths is considered, the presence of a female leader, net migration levels, voice and accountability, and political stability are associated with a quicker launch of a domestic travel restriction policy, while democracy and a country’s wealth may represent an obstacle to an immediate policy activation.
Preparation, optical properties, and thermal stability of polyvinyl butyral composite films containing core (lanthanum hexaboride)–shell (titanium dioxide)-structured nanoparticles
Authors: Tang Hongbo , Zhou Jian , Zhong Shengkui , Su Yuchang , Shu Qunwei , Xiao Lihua
Published: November 2021

Nano-sized lanthanum hexaboride (LaB6)@ titanium dioxide (TiO2) particles with a core–shell structure has been successfully synthesized via a simple sol–gel method. LaB6@TiO2 particles were used as filler in polyvinyl butyral (PVB) matrix and performance of the TiO2 shell was evaluated. The core–shell nanoparticles were characterized for morphology and structure properties. X-ray diffraction and transmission electron microscope testing results confirm the formation of LaB6–TiO2 core–shell structure. In composite film, LaB6 improved the thermo-decomposing temperature of PVB matrix from 369.2 to 372.8°C, while the same amount of LaB6@TiO2 further increased the temperature to 381.0°C. In addition, TiO2 shell redshifted the maximum transmittance of the film from 605 to 669 nm in the visible region. In the near infrared region, its absorption peak shifted from 1,466 to 1,476 nm. This result will be helpful for the development of transparent and thermal insulating materials.
Enjeux autour de la pratique enseignante en contexte d’enseignement distancié
Authors: Carpentier Geneviève , Sauvageau Claudine , Roy Normand
Published: November 2021

Au primaire, le retour en classe à l’automne 2020, marqué par une distanciation physique entre les élèves et les enseignants.es, pose certains enjeux. Cet enseignement distancié influence notamment la pratique enseignante par l’ajustement des gestes professionnels au regard des diverses préoccupations éducatives, soit le pilotage, l’atmosphère, le tissage, l’étayage et les savoirs visés. Cet article présente les résultats issus d’une recherche descriptive, dont la collecte de données a permis d’interroger dix enseignantes du primaire à propos de l’ajustement de leurs pratiques en contexte d’enseignement distancié. Les résultats révèlent des adaptations prédominantes des pratiques relativement à l’atmosphère et aux savoirs visés.