bluuebunny/crossref_metadata_2025 huggingface dataset:
A Liturgia como ponto culminante da Missão. Uma breve leitura da Sacrosanctum Concilium 10 à luz da Evangelii Gaudium 24
Authors: Cunha Diogo da
Published: July 2020

O presente artigo objetiva examinar a declaração, presente na Sacrosanctum Concilium 10, de que a liturgia é fonte e cume da vida da Igreja. Para tanto, pretende descortinar o sentido das duas analogias em sua relação com a missão da Igreja. Faz-se isso, primeiramente, por meio de um sintético apanhado do que já se comentou sobre o tema em alguns textos celebrativos da Constituição Litúrgica e, depois, por meio do cotejo com o Magistério do Papa Francisco, em especial a Evangelii Gaudium 24. Busca-se verificar também de que forma a analogia da fonte e cume, examinada à luz da referida exortação apostólica, parece sugerir que uma participação mais qualitativa e quantitativa dos fiéis na liturgia pode estar condicionada, em grande medida, a uma maior e melhor participação deles na missão cristã cotidiana. Ao final, propõe-se que, dada essa estreita relação entre a participação na liturgia e a participação na missão, à completa implementação dos ideais vislumbrados pelo Concílio Vaticano II pressupõe o auxílio mutuo entre missiologia e teologia litúrgica, missão e liturgia.
Current Status of Schistosomiasis amongst School Children in Igedeland, Benue State, Nigeria.
Authors: Uweh P O , Omudu E A , Onah I E
Published: July 2020

The current status of S. haematobium and S. mansoni infections among school-aged children in Oju and Obi LGAs of Benue State was investigated between July to October 2012. 786 urine and stool samples were examined using the sedimentation technique. In Oju the prevalence of S. haematobium and S. mansoni was 77 (19.3%) and 23 (5.8%) respectively. Males had a 2 prevalence of 54(20.8%) which was significantly higher than females 23(16.4%). (÷ =7.81, df = 3, P < 0.05). The prevalence rate for S. mansoni infection of males in Oju was 18 (7.0%) and females 5 (3.69%). Age group 11-15years had the highest infection rate of (18.8%) for S. haematobium and 15.2% for S. mansoni. The prevalence rates varied with age reaching the peak among age group 5-10 years (21.4%) for S. haematobium and 7.6% for S. mansoni infection. The overall indices of infection were generally highest in the 11-15years age group. Children between 5-10years contributed 93.7% of the daily egg output. Our findings justify the urgent need to develop an integrated community-based intervention that addresses the water andsanitation needs of the communities.
Hubungan Pelaksanaan Pengelolaan Kelas Terhadap Kegiatan Belajar Mengajar Pada Mata Pelajaran Pendidikan Kewarganegaraan Di Madrasah Ibtidaiyah Negeri Kecamatan Tembilahan
Authors: Pratiwi Nia , Mardiah Mardiah
Published: July 2020

Masalah pokok yang dihadapi guru, baik yang pemula maupun yang sudah berpengalaman adalah masalah pengelolaan kelas, yang merupakan aspek yang sering didiskusikan oleh para pengajar. Pengelolaan kelas merupakan masalah tingkah laku yang kompleks, dan guru menggunakannya untuk menciptakan dan mempertahankan kondisi kelas sedemikian rupa, sehingga anak didik dapat mencapai tujuan pengajaran secara efisien dan memungkinkan mereka dapat belajar. Tujuan penelitian adalah untuk mengetahui hubungan pelaksanaan pengelolaan kelas terhadap kegiatan belajar mengajar pada mata pelajaran Pendidikan Kewarganegaraan di Madrasah Ibtidaiyah Negeri Kecamatan Tembilahan Penelitian ini dilakukan di Madrasah Ibtidaiyah Negeri Kecamatan Tembilahan. Penelitian ini dilakukan selama 3 bulan setelah surat riset dikeluarkan. Subjek dalam penelitian ini adalah guru Pendidikan Kewarganegaraan. Objek dalam penelitian ini adalah hubungan pelaksanaan pengelolaan kelas terhadap kegiatan belajar mengajar pada mata pelajaran Pendidikan Kewarganegaraan di Madrasah Ibtidaiyah Negeri Kecamatan Tembilahan. Hasil dari penelitian menunjukkan bahwa dari observasi yang penulis lakukan, maka penulis menemukan  ada hubungan pelaksanaan pengelolaan kelas terhadap kegiatan belajar mengajar pada mata pelajaran Pendidikan Kewarganegaraan di Madrasah Ibtidaiyah Negeri Kecamatan Tembilahan ada hubungannya ini terlihat dari hasil akhir yang penulis temukan bahwa thitung lebih besar dari ttabel atau 3,41 > 1,812 maka Ho ditolak, artinya ada hubungan.
Potential of Mangrove Ecosystem as a Tourism Object Development in Kaledupa Island
Authors: Fisu Amiruddin Akbar , Ahmad Afandi , Hidayat Adrianto , Marzaman Liza Utami
Published: July 2020

Mangrove forests that live in coastal areas, besides being beneficial for human needs, also often clash with development interests such as ports, fish ponds, and tourist areas that threaten their sustainability. Wakatobi Regency has the potential of living natural resources in the form of coastal and marine resources which are quite large, including mangrove ecosystems, seagrass ecosystems and coral reef ecosystems. The purpose of this study is to analyze the potential of mangrove ecosystems and to design the development of mangrove forests as an ecotourism potential. This research is a descriptive-evaluative research, with a qualitative approach. This research is important as a consideration in the development of attractions, which are the main sector in Wakatobi Regency. Mangrove species that dominate throughout the Wakatobi region are Rhizophora spp, Avicennia spp. and Sonneratia spp. Based on the potential of each island in Wakatobi Regency, Kaledupa Island is a priority area to be developed into ecotourism. This study recommends the construction of several supporting facilities for ecotourism on Kaledupa Island. Suggestions and infrastructure include service facilities, trade facilities and accommodation facilities.Keywords: Mangrove Ecosystem, Kaledupa Island, Ecotourism
Impact of Lagrangian Transport on Lower-Stratospheric Transport Time Scales in a Climate Model
Authors: Charlesworth Edward J. , Dugstad Ann-Kristin , Fritsch Frauke , Jöckel Patrick , Plöger Felix
Published: July 2020

Abstract. We investigate the impact of model trace gas transport schemes on the representation of transport processes in the upper troposphere and lower stratosphere. Towards this end, the Chemical Lagrangian Model of the Stratosphere (CLaMS) was coupled to the ECHAM/MESSy Atmospheric Chemistry (EMAC) model and results from the two transport schemes were compared. Advection in CLaMS was driven by the EMAC simulation winds and thereby the only differences in transport between the two sets of results were caused by differences in the transport schemes. To analyze the time scales of large-scale transport, multiple tropical-surface-emitted tracer pulses were performed to calculate age of air spectra, while smaller-scale transport was analyzed via idealized, radioactively-decaying tracers emitted in smaller regions (nine grid cells) within the stratosphere. The results show that stratospheric transport barriers are significantly stronger for Lagrangian EMAC-CLaMS transport due to reduced numerical diffusion. In particular, stronger tracer gradients emerge around the polar vortex, at the subtropical jets, and at the edge of the tropical pipe. Inside the polar vortex, the more diffusive EMAC flux-form semi-Lagrangian transport scheme results in a substantially higher amount of air with ages from 0 to 2 years (up to a factor 5 higher). In the lowermost stratosphere, air is much younger in EMAC, owing to stronger diffusive cross-tropopause transport. Conversely, EMAC-CLaMS shows a summertime lowermost stratosphere age inversion – a layer of older air residing below younger air (an eave). This pattern is caused by strong poleward transport above the subtropical jet, and is entirely blurred by diffusive cross-tropopause transport in EMAC. Potential consequences from the choice of the transport scheme on CCM and geoengineering simulations are discussed.
MIMiX: a Multipurpose In situ Microreactor system for X-ray microspectroscopy to mimic atmospheric aerosol processing
Authors: Förster Jan-David , Gurk Christian , Lamneck Mark , Tong Haijie , Ditas Florian , Steimer Sarah S. , Alpert Peter A. , Ammann Markus , Raabe Jörg , Weigand Markus , Watts Benjamin , Pöschl Ulrich , Andreae Meinrat O. , Pöhlker Christopher
Published: July 2020

Abstract. The dynamic processing of aerosols in the atmosphere is difficult to mimic under laboratory conditions, particularly on a single-particle level with high spatial and chemical resolution. Our new microreactor system for X-ray microscopy facilitates observations under in situ conditions and extends
the accessible parameter ranges of existing setups to very high humidities and low temperatures. With the parameter margins for pressure (180–1000 hPa), temperature (∼250 K to room temperature), and relative humidity (∼0 % to above 98 %), a wide range of tropospheric conditions is covered. Unique features are the mobile design and compact size that make the instrument applicable to different synchrotron facilities. Successful first experiments were conducted at two X-ray microscopes, MAXYMUS, located at beamline UE46 of the synchrotron BESSY II, and PolLux, located at beamline X07DA of the Swiss Light Source in the Paul Scherrer Institute. Here we present the design and analytical scope of the system, along with first results from hydration–dehydration experiments on ammonium sulfate and potassium sulfate particles and the tentative observation of water ice at low temperature and high relative humidity in a secondary organic aerosol particle from isoprene oxidation.
High-latitude crochet: solar flare-induced magnetic disturbance independent from low-latitude
Authors: Yamauchi Masatoshi , Johnsen Magnar G. , Enell Carl-Fredrik , Tjulin Anders , Willer Anna , Sormakov Dmitry A.
Published: July 2020

Abstract. Solar flare-induced High latitude (peak at 70–75° geographic latitude) ionospheric current system was studied. Right after the X9.3 flare on 6 September 2017, magnetic stations at 68–77° geographic latitudes (GGlat) near local noon detected northward geomagnetic deviations (ΔB) for more than 3 hours, with peak amplitudes > 200 nT, without any accompanying substorm activities. From its location, this solar flare effect, or crochet, is different from previously studied ones, namely, subsolar crochet (seen at lower latitude), auroral crochet (pre-requires auroral electrojet in sunlight), or cusp crochet (seen only in the cusp). The new crochet is much more intense and longer in duration than the subsolar crochet. The long duration matches with the period of high solar X-ray flux (more than M3-class flare level). Unlike the cusp crochet, interplanetary magnetic field (IMF) BY is not the driver with BY only 0–1 nT out of 3 nT total field. The equivalent ionospheric current flows eastward in a limited latitude range but extended at least 8 hours in local time (LT), forming a zonal current region equatorward of the polar cap on the geomagnetic closed region. EISCAT radar measurements over the same region as the most intense ΔB near local noon show enhancements of electron density (and hence ion-neutral ratio) at these altitudes (~ 100 km) where the background Sq ion convection (> 100 m/s) pre-existed. Therefore, this new zonal current can be related to the Sq convection and the electron density enhancement, e.g., by descending E-region height. However, we have not found why the new crochet is found in a limited latitudinal range, and therefore the mechanism is still unclear compared to the subsolar crochet that is maintained by transient re-distribution of electron density. The signature is sometimes seen in the Auroral Electrojet (AE) index. A quick eye-survey for X-class flares during solar cycle 23 and 24 shows clear AU increases for about half the > X2 flares during non-substorm time, although the latitudinal coverage of the AE stations is not favorable to detect this new crochet. Although some of them could be due to auroral crochet, this new crochet can be rather common feature for X flares.
Radar and ground-level measurements of precipitation collected by EPFL during the ICE-POP 2018 campaign in South-Korea
Authors: Gehring Josué , Ferrone Alfonso , Billault–Roux Anne-Claire , Besic Nikola , Ahn Kwang Deuk , Lee GyuWon , Berne Alexis
Published: July 2020

Abstract. This article describes a four-month dataset of precipitation and cloud measurements collected during the International Collaborative Experiments for PyeongChang 2018 Olympic and Paralympic winter games (ICE-POP 2018). This paper aims to describe the data collected by the Environmental Remote Sensing Laboratory of the École Polytechnique Fédérale de Lausanne. The dataset includes observations from an X-band dual-polarisation Doppler radar, a W-band Doppler cloud profiler, a multi-angle snowflake camera and a two-dimensional video disdrometer (https://doi.pangaea.de/10.1594/PANGAEA.918315, Gehring et al. (2020a)) . Classifications of hydrometeor types derived from dual-polarisation measurements and snowflake photographs are presented. The dataset covers the period from 15 November 2017 to 18 March 2018 and features nine precipitation events with a total accumulation of 195 mm of equivalent liquid precipitation. This represents 85 % of the climatological accumulation over this period. To illustrate the available data, measurements corresponding to the four precipitation events with the largest accumulation are presented. The synoptic situations of these events were contrasted and influenced the precipitation type and accumulation. The hydrometeor classifications reveal that aggregate snowflakes were dominant and that some events featured significant riming. The combination of dual-polarisation variables and high-resolution Doppler spectra with ground-level snowflake images makes this dataset particularly suited to study snowfall microphysics in a region where such measurements were not available before.
SoilKsatDB: global soil saturated hydraulic conductivity
measurements for geoscience applications
Authors: Gupta Surya , Hengl Tomislav , Lehmann Peter , Bonetti Sara , Or Dani
Published: July 2020

Abstract. Saturated soil hydraulic conductivity (Ksat) is a key parameter in many hydrological and climatic modeling applications, as it controls the partitioning between precipitation, infiltration and runoff. Ksat values are primarily determined from soil textural properties and soil forming processes, and may vary over several orders of magnitude. Despite availability of Ksat datasets at catchment or regional scale, significant efforts are required to import and bind the data before it could be used for modeling. In this work, a total of 1,910 sites with 13,267 Ksat measurements were assembled from published literature and other sources, standardized, and quality-checked in order to provide a global database of soil saturated hydraulic conductivity (SoilKsatDB). The SoilKsatDB covers most global regions, with the highest data density from the USA, followed by Europe, Asia, South America, Africa, and Australia. In addition to Ksat, other soil variables such as soil texture (11,667 measurements), bulk density (11,151 measurements), soil organic carbon (9,787 measurements), field capacity (7,389) and wilting point (7,418) are also included in the dataset. The results of using the SoilKsatDB to fit Ksat pedotransfer functions (PTFs) for temperate climatic regions and laboratory based soil samples based on soil properties (sand and clay content, bulk density) show that reasonably accurate models can be fitted using Random Forest (best CCC = 0.70 and CCC = 0.73 for temperate and lab based measurements, respectively). However when temperate and laboratory based Ksat PTFs are applied to soil samples from tropical climates and field measurements, respectively, the model performance is significantly lower (CCC = 0.51 for tropical and CCC = 0.13 for field samples). PTFs derived for temperate soils and laboratory measurements might not be suitable for estimating Ksat for tropical regions or field measurements, respectively. The SoilKsatDB dataset is available at https://doi.org/10.5281/zenodo.3752721 and the code used to produce the compilation is publicly available under an open data license.
Calculating human thermal comfort and thermal stress in the PALM model system 6.0
Authors: Fröhlich Dominik , Matzarakis Andreas
Published: July 2020

Abstract. In the frame of the project “MOSAIK – Model-based city planning and application in climate change”, a German-wide research project within the call “Urban Climate Under Change” ([UC]2) funded by the German Federal Ministry of Education and Research (BMBF), a biometeorology module was implemented into the Parallelized Large-Eddy Simulation Model (PALM) system. The new biometeorology module is comprised of methods for the calculation of UV-exposure quantities, a human–biometeorologically weighted mean radiant temperature (Tmrt), as well as for the estimation of human thermal comfort or stress. The latter is achieved through the implementation of the three widely used thermal indices: perceived temperature (PT), Universal Thermal Climate Index (UTCI), as well as physiologically equivalent temperature (PET). Comparison calculations were performed for the PT, UTCI and PET indices based on the SkyHelios model and showing PALM calculates higher values in general. This is mostly due to a higher radiational gain leading to higher values of mean radiant temperature. For a more direct comparison, the PT, PET and UTCI indices were calculated by the biometeorology module, as well as the programs provided by the attachment to Verein Deutscher Ingenieure (VDI) guideline 3787, as well as by the RayMan model based on the very same input dataset. Results show deviations below the relevant precision of 0.1 K for PET and UTCI and some deviations of up to 2.683 K for PT caused by repeated unfavorable rounding in very rare cases (0.027 %).
Nuevos formatos de audio, viejos problemas
Authors: Tascón Mario
Published: July 2020

La era digital ha multiplicado las posibilidades de escuchar audios por diferentes canales y soportes y ha multiplicado la oferta casi hasta el infinito. Sin embargo, esta revolución tecnológica no facilita, sino que dificulta el reto de la conservación de esta gigantesca producción. El presente artículo hace referencia a innovaciones que son ya de consumo masivo y a los problemas con que se enfrentan empresas y particulares a la hora de preservar su patrimonio sonoro.
Impact of Capital Market on Economic Growth in Nigeria
Authors: M. C. Ubesie , C. E. Nwanekpe , C. Ejilibe
Published: July 2020

This study on “Impact of Capital Market on Economic Growth in Nigeria” is aimed to access the impact and determinant of capital market on the economic growth in Nigeria within the period of study. It further employed the ordinary least square method (OLS) in analyzing the time series variables obtained for the study. The result of the findings show that all the variables of interest were significant in explaining the behavior of capital market on the growth of Nigeria Economy except Labour force. more so, the result show that the the model employed for the analysis is adequate and best in fitting the variables obtained. Further more, necessary recommendations were made to enable the government come up with a favorable policies in which will make for improvement in the standard of living.
Positivities of Globalization in the Domain of Developing the Human Resources
Authors: Abu Shari’ah Hamzeh Ismaeil Ibrahim
Published: July 2020

This study aimed at clearing what globalization left of positive effects in the domain of human resources, the study had been performed on the hypothesis meaning: (that there is a correlating relationship with a positive dimension between the globalization and the human resources manifest in one of them increase of awareness and improving performance), but the problem of the study had possessed an axis in the following questions: (What are the positive effects of globalization in the domain of human resources?), to be asserted of the hypothesis correctness and answering its axial question, so we had employed the analytical descriptive method. The study had deduced the correctness of the hypothesis, and made us reach numerous results, the most significant of them: is that globalization observed rights of the human resources and protected them from violations, shared in increasing awareness of the human resources in plenty of things which were absent from them, also pushed the governments to concern and promote with performing the human resources, and these results obliged numerous recommendations, the most significant of them: necessity of the states doing the enlargement of positivisms of globalization in the domain of human resources, and belittling their negativisms through studied programs.
Der performative Selbstwiderspruch jeder propositionalen Offenbarung
Authors: Damschen Gregor
Published: July 2020

Is there a propositional revelation, and if so, are there rational criteria by which one can distinguish a true revelation from one that only pretends to be one? In the first section of this essay, I will analyze the basic concepts of "revelation" and "knowledge" associated with the topic under discussion. In the second section, I will name epistemological objections that result from these analyses for propositional revelation: firstly, problems of criteria of first and second order revelation, and secondly, the performative self-contradiction of the condition of transcendence contained in the definition of propositional revelation. Finally, in the third section I draw fundamental epistemological consequences from the previous considerations.
Strukturbedingungen der pflegerischen Versorgung – Optionen hinsichtlich Übertragung, Übernahme und Leistungsselbständigkeit
Authors: Dangel Bärbel , Korporal Johannes
Published: July 2020

Der lange diskutierten Umverteilung oder Neuordnung von Tätigkeiten im Gesundheitswesen stehen strukturelle Bedingungen entgegen, die vor allem die Pflege betreffen. Sie führen dazu, dass Reformintentionen nicht versorgungswirksam werden können. Im Beitrag werden einige dieser Bedingungen erläutert und am Beispiel der Richtlinie zur Heilkundeübertragung vertieft. Es werden Vorschläge zum Erreichen „kompetenzieller Augenhöhe“ und angemessener Wirksamkeit in der Versorgung gemacht.
The impact of regional express trains from Moscow on population mobility
Authors: Romashina A. A.
Published: July 2020

The paper is concerned with settlement system transformation in response to transport speed increase and changing the conditions of commuting. The article discusses the role of the individual spatial mobility as a part of settlement structure by the example of directions from Moscow to Tver’, Nizhny Novgorod, Orel, Belgorod, Kursk, where projects of significant railroad speed increase were operated in the 2010s. Transport accessibility improvement between Moscow and listed regional centers, caused by the launch of regional express trains, changed the spatial behavior of the inhabitants of these regions. The study of settlement structure transformation in response to transport connection speed increase was based on dynamics data of various types of trains passenger flows and the results of sociological surveys of regional express trains passengers. Conclusions are drawn about the role of commuting in the settlement structure and the factors of their transformation, depending on the speed characteristics, existing settlement structure and other geographical characteristics of the territory. The influence of these factors was different on the considered directions. Some of mentioned projects affected intra- (Tver’) and inter-agglomeration mobility (Nizhny Novgorod). Some cities (Oryol, Kursk, Belgorod) are characterized by small effects on commuting due to it’s sensitivity to the distance from Moscow and migration potential.
Attractiveness of the Russian regions for migrants with higher education
Authors: Zemtsov S.P. , Kidyaeva V.M.
Published: July 2020

Attracting and preserving human capital is one of the key tasks of regional development. It is believed that only Moscow successfully solves it. But in times of crisis, Moscow’s share of the number of migrants arriving decreases, including due to a drop in the ratio of income to the cost of living in the capital. As a result of the pandemic and expanding opportunities for remote work, some professionals will think about moving to less densely populated, but comfortable cities. We study the factors that contribute to the attraction of highly qualified personnel. Econometric calculations have confirmed the importance of the presence or proximity of a large labor market, a high quality of life, a favor- able institutional environment, and comfortable bioclimatic conditions. Based on the identified factors, an index of attractiveness of regions is proposed; Among the leaders in 2018: Moscow, St. Petersburg, Moscow Region, Tatarstan, Krasnodar Territory, Samara, Voronezh Regions. In the top 10 regions in 2011-2018. accounted for more than 40% of all attracted highly qualified personnel. Regions that will be able to attract professionals in the post-crisis period to develop digital technologies and related knowledge-intensive sectors of the economy will benefit in the long run. This will require measures to develop the rental housing market, improve the urban environment, and create favorable conditions for entrepreneurs and investors.
Main trends in transformation of Central Asian macroregion ethnic space from 1897 to 2017
Authors: Manakov A.G.
Published: July 2020

The main trends in the ethnic transformation of the post-Soviet space were set long before the collapse of the Soviet Union. The most striking example of this is the process of ethnic transformation in the macroregion, including the territory of the young states of Central Asia (Kazakhstan and the republics of Middle Asia). The aim of the study is to identify the main trends in the transformation of the ethnic space of the Central Asian macroregion over a 120-year interval. For this, a set of ethnic indicators (ethnic mosaic, homogeneity, concentration, etc.) were used, calculated according to the results of censuses and population counts, as well as the methods which have been created in Russian cultural geography. As a part of the study period, two stages were distinguished, characterized by directly opposite trends in the transformation of the ethnic space of the macroregion. The first stage lasted until the end of the 1950s. It was characterized by a decrease in the share of the titular nations of the republics as a result of a significant migration influx of the population from outside the macroregion, which led to an increase in the degree of multi-ethnicity of the territory. Since the 1960s an increase in the share of the titular nations of the republics began, which was a consequence of the demographic explosion of the indigenous population and the migration outflow of non-titular peoples of the republics, and the concentration of titular ethnic groups within their republics increased. The most significant ethnic restructuring throughout the period was experienced by Kazakhstan and the North of Kyrgyzstan. In the second stage the ethnic structure of the population has undergone a radical transformation of all large cities in the macroregion underwent.
¿Trabajo decente o trabajo indecente?
Authors: Bordas Martínez Julio , Pinilla García Francisco Javier
Published: July 2020

El trabajo decente, tal como lo define la OIT, es una forma digna de trabajar en un contexto de políticas de generación de empleo, con la capacidad de exigir judicialmente los derechos de los trabajadores, en el marco de una política institucional de protección social y con el reconocimiento de una negociación colectiva autonormativa consolidada. A estos cuatro objetivos tradicionales debemos sumar el objetivo transversal de la igualdad de género. El desempleo, el subempleo y el empleo precario, en el marco de la ideología de la flexiseguridad, configuran el caldo de cultivo del empleo indecente o empleo precario.Decent work, as defined by the ILO, is a worthy way of working, in a context of employment generation policies, with the capacity to legally demand the rights of workers, within the framework of an institutional policy of social protection and with the recognition of a consolidated autonomous collective bargaining. To these four traditional objectives we must add the transversal objective of gender equality. Unemployment, underemployment and precarious employment, within the framework of the ideology of flexicurity, are the breeding grounds of indecent employment or precarious employment.
Developing multimodal communicative competence in emerging academic and professional genres
Authors: Ruiz-Madrid Noelia , Valeiras-Jurado Julia
Published: July 2020

In this paper, we propose a pedagogical approach for teaching and learning multimodal literacy, specifically, the application of multimodal discourse analysis for genre awareness. The mastery of specific oral genres is seen as desirable to help students become competent professionals. This is the case of Product Pitches (PPs) in the business field and Research Pitches (RPs) in the academic field. The former are short presentations that introduce a product to the market, the latter constitute an emerging way of disseminating ongoing research to the general public. A salient characteristic of both is their multimodal nature, which has raised an increasing interest in multimodal approaches to genre pedagogy. Our aim is to develop students’ analytical skills to make them aware of the variety of semiotic modes and the importance of using them coherently. The pedagogical approach is facilitated by specialised software that supports the systematic teaching and learning of multimodal genres.
Uso combinado de software libre y de técnicas analíticas para facilitar la comprensión de los diagramas de equilibrio químico
Authors: Ortega Navarro Emma , Martí Calatayud Manuel César , Pérez Herranz Valentín , García Gabaldón Montserrat , Carrillo Abad Jordi
Published: July 2020

En el presente trabajo se han investigado las ventajas resultantes del uso combinado del software libre Spana para la realización de diagramas de equilibrio junto con diferentes técnicas experimentales de análisis químico. El software Spana se ha utilizado para representar diagramas de distribución de especies de diferentes disoluciones de ácido fosfórico y sus sales. Los diagramas resultantes se han relacionado con los resultados obtenidos mediante conductimetría y colorimetría, bajo el contexto de la realización de un trabajo fin de Máster por parte de un alumno de Ingeniería Química. Los resultados alcanzados demuestran que el uso de técnicas experimentales junto con un software fácil de usar contribuye a mejorar la comprensión de los alumnos de la relevancia que tienen los desplazamientos del equilibrio químico sobre diferentes procesos ingenieriles. La metodología propuesta reduce el tiempo del proceso de aprendizaje por parte de los alumnos y puede resultar de utilidad, no solamente para la realización de trabajos fin de máster, sino también en la realización de prácticas de laboratorio en asignaturas relacionadas con el análisis químico.

In the present work, the advantages of combining the use of the freeware Spana to plot equilibrium diagrams with different laboratory analytical techniques have been investigated. The software Spana has been used to plot speciation diagrams of different solutions of phosphoric acid and its salts. The resulting diagrams have been correlated with the results obtained by conductimetric titration and colorimetry under the framework of the realization of a Master Thesis by a student of Chemical Engineering. The results achieved demonstrate that the combined use of experimental techniques and user-friendly software aid in the comprehension of the relevance that shifts in the chemical equilibrium could have on different engineering processes by students of Chemical Engineering. The proposed methodology reduces the time that students need to understand problems related to chemical equilibria and could be implemented, not only during the completion of Master Thesis’, but also in laboratory courses related with subjects of Chemical Analysis.
BRIKS – den nye stormagtskoncert
Authors: Skak Mette
Published: July 2020

BRIKS er både en stærk stemme for vindernatio- ner i globaliseringen og en skrøbelig konstruk- tion, der trues af store modsætninger mellem kon- kurrerende alliancer – også inden for BRIKS selv.
Le réel de la philosophie et la pratique de la connaissance
Authors: Panais Julien
Published: July 2020

Lors d’un cours portant sur la Lettre VII de Platon, Michel Foucault introduit l’expression de « réel de la philosophie ». Pour les différents commentateurs de cette leçon, cette formule se rapporte aux actions politiquement efficaces que le philosophe doit effectuer pour insérer la philosophie dans la réalité. Selon nous et contrairement à cette interprétation, la philosophie possède déjà pour Foucault les modalités de sa propre effectivité avant même d’être efficace politiquement. La surestimation de la dimension politique conduit d’autre part à sous-estimer les pratiques de connaissance propre à la philosophie, d’autant que selon nous Foucault se saisit de la notion de « réel philosophique » de Martial Gueroult pour sa propre élaboration du « réel de la philosophie ». Déterminer les modalités du réel de la philosophie selon Foucault, c’est ce à quoi nous nous attachons dans cet article.
Cultural memory of the migrants and accepting society in Russian and abroad: conflict dimension
Authors: Linchenko Andrei Aleksandrovich
Published: July 2020

The goal of this article is the socio-philosophical conceptualization of memory conflicts in the migration society, as well as comparative analysis of the Russian and foreign contexts. Foreign experience was examined within the framework of the policy of assimilation and multiculturalism, as well as politics aimed at formation of transnational identities. The analysis of Russian context was conducted on the basis of determination and classification of conflictogenic factors, main parties of the conflicts, settlement strategies, and types of conflicts in the condition of internal and external migration challenges. The author leans on the constructivist approach, which suggests that perception of the past is predetermined and formed by sociocultural contexts and practices of memory and obscurity. In comparison with the foreign, Russian context demonstrates the prevalence of latent forms of conflict. Russia marks the formation of “parallel” memory communities, when the migrants and accepting society maintain a forced neutrality. If the foreign research indicate mostly status conflicts, in the Russian conditions, the migrants are oriented towards defensive type of memory conflicts. The oversea conflicts of memory mark the clash of modernism and traditionalism, while Russia demonstrated the clash of different versions of traditionalism.
Subjective Evaluation of User Quality of Experience for Omnidirectional Video Streaming
Authors: Mrvelj Štefica , Matulin Marko , Martirosov Sergo
Published: July 2020

This paper reports on the results of subjective testing of user Quality of Experience (QoE) for omnidirectional video (ODV) streaming quality. The test was conducted among 20 test subjects who watched three ODVs using a Head Mounted Display (HMD) system. The length of the videos was between two and three minutes. The first video was used for training purposes and contained no quality degradations. The quality of the other two ODVs was degraded by manipulating the resolution or by introducing different frame drop patterns. While watching the pre-prepared videos the subjects indicated if they noticed the changes in the quality and then rated it. After watching each video, the subjects completed a separate questionnaire, which evaluated their level of enjoyment and discomfort with the video. The results showed that the degradation of both objective parameters (video resolution and frame rate) impacted the subjects’ perception of quality; however, the impact was somewhat alleviated in ODV which contained dynamic scenes and fast camera movements.
Multiple solutions of boundary value problems on time scales for a φ-Laplacian operator
Authors: Amster Pablo , Kuna Mariel Paula , Santos Dionicio Pastor
Published: July 2020

We establish the existence and multiplicity of solutions for some boundary value problems on time scales with a \(\varphi\)-Laplacian operator. For this purpose, we employ the concept of lower and upper solutions and the Leray-Schauder degree. The results extend and improve known results for analogous problems with discrete \(p\)-Laplacian as well as those for boundary value problems on time scales.
Facial rainbow edge-coloring of simple 3-connected plane graphs
Authors: Czap Július
Published: July 2020

A facial rainbow edge-coloring of a plane graph \(G\) is an edge-coloring such that any two edges receive distinct colors if they lie on a common facial path of \(G\). The minimum number of colors used in such a coloring is denoted by \(\text{erb}(G)\). Trivially, \(\text{erb}(G) \geq \text{L}(G)+1\) holds for every plane graph without cut-vertices, where \(\text{L}(G)\) denotes the length of a longest facial path in \(G\). Jendroľ in 2018 proved that every simple \(3\)-connected plane graph admits a facial rainbow edge-coloring with at most \(\text{L}(G)+2\) colors, moreover, this bound is tight for \(\text{L}(G)=3\). He also proved that \(\text{erb}(G) = \text{L}(G)+1\) for \(\text{L}(G)\not\in\{3,4,5\}\). He posed the following conjecture: There is a simple \(3\)-connected plane graph \(G\) with \(\text{L}(G)=4\) and \(\text{erb}(G)=\text{L}(G)+2\). In this note we answer the conjecture in the affirmative.
Inhibitory Potential and Antidiabetic Activity of Leaf Extracts of Justicia carnea
Authors: Ani Onuabuchi Nnenna , Udedi Stanley Chidi , Asogwa Kelechi Kingsley , Enemali Michael Okey , Onwelumadu Chigozie Michael , Ikedife Kenneth Segun
Published: July 2020

The aim of this study was to evaluate the in-vitro inhibitory potential of various leaf extracts of Justicia carnea on alpha-amylase and alpha-glucosidase activities and the anti-diabetic activity of the ethanol leaf extract using albino wistar rats. The analyses were carried out using standard biochemical methods. The oral acute toxicity test (LD50) in rats of the ethanol leaf extract was determined using Lorke’s method. Diabetes was induced in the rats by a single intraperitoneal dose of 120 mg/kg. b.w of alloxan. Six (6) experimental groups of rats (n=6) were used for the study. Three groups of diabetic rats received oral daily doses of 200 mg/kg, 400 mg/kg and 600 mg/kg ethanol leaf extract of Justicia carnea respectively while gilbenclamide (5 mg/ml); a standard diabetic drug was administered to a specific group. Treatment lasted for 14 days. From the results of the in-vitro inhibitory activity, the different extracts of Justicia carnea demonstrated dose dependent strong inhibitory activity against α-amylase but moderate inhibitory activity against α-glucosidase. The ethanol leaf extract was the most potent inhibitor of both α-amylase and α-glucosidase in comparison with other extracts and acarbose; the standard. The ethanol leaf extract exhibited maximum of 82.18% inhibition with IC50 of 2.99 ± 1.14 mg/ml for α-amylase and 41.66% with IC50 of 9.66 mg/ml ± 0.32 mg/ml for α-glucosidase. From the analysis of the Lineweaver-Burk plot, the ethanol leaf extract exhibited mixed noncompetitive inhibition of α-amylase and competitive inhibition of α-glucosidase activities. The acute toxicity study showed that the extract had an LD50 > 5000 mg/kg. From the result of the anti-diabetic study, the fasting blood glucose levels significantly (p<0.05) decreased in the animals treated with the ethanol leaf extract of Justicia carnea when compared to the untreated rats. It can be concluded from the results that the leaf extracts of Justicia carnea can be used in the management of diabetes.
Application of the nursing activities score (NAS) in an intensive care unit (ICU)
Authors: Pereira Bruna da Silva Louredo , Pereira Sandra Regina Maciqueira , Farias Ayla Maria Mesquita de , Bridi Adriana Carla , Paula Vanessa Galdino de , Souza Kamila Azevedo de
Published: July 2020

Objetivos:Descrever o perfil demográfico dos pacientes, mensurar a carga de trabalho da enfermagem por meio da aplicação do instrumento Nursing Activities Score (NAS) e apresentar o dimensionamento recomendado para a equipe de enfermagem. Método: estudo transversal, prospectivo e descritivo, desenvolvido na unidade de terapia intensiva, com 10 leitos, de um hospital Universitário do Rio de Janeiro entre maio e junho de 2017, tendo 138 avaliações, em 12 pacientes, num total de 20 dias. Resultados: Houve predominância do sexo feminino (67%), com idade mediana de 60,5 anos, e tempo de internação em média de 11,58 dias, o percentual do NAS médio observado foi de 76,9%, correspondendo a 18,4 horas de assistência de enfermagem nas 24 horas, com recomendação de no mínimo 10 profissionais de enfermagem por turno, sendo 52% enfermeiros. Conclusão: A aplicação do NAS ajustado às recomendações do Conselho Federal de Enfermagem contribui para o dimensionamento adequado dos profissionais de enfermagem.
Optic Disc Classification by Deep Learning versus Expert Neuro‐Ophthalmologists
Authors: Biousse Valérie , Newman Nancy J. , Najjar Raymond P. , Vasseneix Caroline , Xu Xinxing , Ting Daniel S. , Milea Léonard B. , Hwang Jeong‐Min , Kim Dong Hyun , Yang Hee Kyung , Hamann Steffen , Chen John J. , Liu Yong , Wong Tien Yin , Milea Dan ,   for the BONSAI (Brain and Optic Nerve Study with Artificial Intelligence) Study Group
Published: July 2020

Objective

To compare the diagnostic performance of an artificial intelligence deep learning system with that of expert neuro‐ophthalmologists in classifying optic disc appearance.

Methods

The deep learning system was previously trained and validated on 14,341 ocular fundus photographs from 19 international centers. The performance of the system was evaluated on 800 new fundus photographs (400 normal optic discs, 201 papilledema [disc edema from elevated intracranial pressure], 199 other optic disc abnormalities) and compared with that of 2 expert neuro‐ophthalmologists who independently reviewed the same randomly presented images without clinical information. Area under the receiver operating characteristic curve, accuracy, sensitivity, and specificity were calculated.

Results

The system correctly classified 678 of 800 (84.7%) photographs, compared with 675 of 800 (84.4%) for Expert 1 and 641 of 800 (80.1%) for Expert 2. The system yielded areas under the receiver operating characteristic curve of 0.97 (95% confidence interval [CI] = 0.96–0.98), 0.96 (95% CI = 0.94–0.97), and 0.89 (95% CI = 0.87–0.92) for the detection of normal discs, papilledema, and other disc abnormalities, respectively. The accuracy, sensitivity, and specificity of the system's classification of optic discs were similar to or better than the 2 experts. Intergrader agreement at the eye level was 0.71 (95% CI = 0.67–0.76) between Expert 1 and Expert 2, 0.72 (95% CI = 0.68–0.76) between the system and Expert 1, and 0.65 (95% CI = 0.61–0.70) between the system and Expert 2.

Interpretation

The performance of this deep learning system at classifying optic disc abnormalities was at least as good as 2 expert neuro‐ophthalmologists. Future prospective studies are needed to validate this system as a diagnostic aid in relevant clinical settings. ANN NEUROL 2020;88:785–795
Tandem Photoredox Catalysis: Enabling Carbonylative Amidation of Aryl and Alkylhalides
Authors: Forni José A. , Micic Nenad , Connell Timothy U. , Weragoda Geethika , Polyzos Anastasios
Published: July 2020

We report a new visible‐light‐mediated carbonylative amidation of aryl, heteroaryl, and alkyl halides. A tandem catalytic cycle of [Ir(ppy)2(dtb‐bpy)]+ generates a potent iridium photoreductant through a second catalytic cycle in the presence of DIPEA, which productively engages aryl bromides, iodides, and even chlorides as well as primary, secondary, and tertiary alkyl iodides. The versatile in situ generated catalyst is compatible with aliphatic and aromatic amines, shows high functional‐group tolerance, and enables the late‐stage amidation of complex natural products.
Copper‐Catalyzed Azide–Ynamide Cyclization to Generate α‐Imino Copper Carbenes: Divergent and Enantioselective Access to Polycyclic N‐Heterocycles
Authors: Liu Xin , Wang Ze‐Shu , Zhai Tong‐Yi , Luo Chen , Zhang Yi‐Ping , Chen Yang‐Bo , Deng Chao , Liu Rai‐Shung , Ye Long‐Wu
Published: July 2020

Here an efficient copper‐catalyzed cascade cyclization of azide‐ynamides via α‐imino copper carbene intermediates is reported, representing the first generation of α‐imino copper carbenes from alkynes. This protocol enables the practical and divergent synthesis of an array of polycyclic N‐heterocycles in generally good to excellent yields with broad substrate scope and excellent diastereoselectivities. Moreover, an asymmetric azide–ynamide cyclization has been achieved with high enantioselectivities (up to 98:2 e.r.) by employing BOX‐Cu complexes as chiral catalysts. Thus, this protocol constitutes the first example of an asymmetric azide–alkyne cyclization. The proposed mechanistic rationale for this cascade cyclization is further supported by theoretical calculations.
Tailoring Optical Properties of Luminescent Semiconducting Nanocrystals through Hydrostatic, Anisotropic Static, and Dynamic Pressures
Authors: Biesold Gill M. , Liang Shuang , Brettmann Blair , Thadhani Naresh , Kang Zhitao , Lin Zhiqun
Published: July 2020

Luminescent semiconductor nanocrystals are a fascinating class of materials because of their size‐dependent emissions. Numerous past studies have demonstrated that semiconductor nanoparticles with radii smaller than their Bohr radius experience quantum confinement and thus size‐dependent emissions. Exerting pressure on these nanoparticles represents an additional, more dynamic, strategy to alter their size and shift their emission. The application of pressure results in the lattices becoming strained and the electronic structure altered. In this Minireview, colloidal semiconductor nanocrystals are first introduced. The effects of uniform hydrostatic pressure on the optical properties of metal halide perovskite (ABX3), II–VI, III–V, and IV–VI semiconductor nanocrystals are then examined. The optical properties of semiconductor nanocrystals under static and dynamic anisotropic pressure are then summarized. Finally, future research directions and applications utilizing the pressure‐dependent optical properties of semiconductor nanocrystals are discussed.
A study on benzene release during water washing of biomass
Authors: Deng Lei , Long Jimiao , Wu Yuhao , Che Defu
Published: July 2020

Water washing can effectively remove Na, K, and Cl in biomass, which can cause fouling, slagging, and corrosion during thermal conversion process of biomass fuels. However, it is necessary to dispose the leachates appropriately after water washing. Characterization of organic matters in leachates should be performed first, which is beneficial to find an effective way to dispose the leachate. In this study, four biomass materials are washed with the deionized water at 30°C, 60°C, and 90°C. The release of toluene and styrene is studied. The results show that yields of organic matters for corn stalk and wheat straw are the highest relatively, of which the eventual values are 8% and 15%, respectively. Less toluene and styrene are released at 30–60°C than that at 90°C for wheat straw. But the release of toluene and styrene in rice hull leachate shows the opposite trend. The concentration of styrene in leachates reaches a minimum value at 60°C. The corresponding values are 0.017 mg L−1 for wheat straw and 0.15 mg L−1 for rice hull. But none is detected in corn stalk and sorghum stalk leachates. In addition, variations of toluene and styrene concentrations are obviously different with different washing temperatures.