bluuebunny/crossref_metadata_2025 huggingface dataset:
Det 'hybride Zoom'
Authors: Hyldegård Jette Seiden , Engerer Volkmar
Published: July 2023

Artiklen fokuserer på feedback som ”driver” i online-undervisning, og ser nærmere på sammenhængen mellem den underviserstyrede feedback ”på Zoom” og de studerendes selvorganiserede og feedback-relaterede forberedelsesaktiviteter ”bag om Zoom”. Der argumenteres for nødvendigheden af at se den asynkrone feedback-forberedelse og en synkron feedback-situation i undervisningen som én samlet didaktisk enhed. Det begrundes gennem et analytisk og teoretisk funderet læringsdesign med fokus på feedback-modtagerens forberedelse af et digitalt feedback-produkt til en given feedback-situation i undervisningen. Læringsdesignet udvikles og afprøves ifm. et online tilvalgskursus på Københavns Universitet i foråret 2021. Gennem et spørgeskema (N=37) og et fokusgruppeinterview (N=6) undersøges feedback-modtagerens forberedelse af et ’feedback-egnet’ produkt og indvirkningen på hans/hendes motivation og engagement i online-undervisningen. Det konkluderes, at læringsdesignet kan styrke dynamikken mellem det synkrone og asynkrone læringsrum, og dermed kvalificere den studerendes læringsudbytte. Dog skal designet afprøves didaktisk i flere kursussammenhænge for at forstå, hvad der fremmer og/eller betinger feedback-forberedelse som motiverende ”driver” i det hybride læringsrum.
Socio-teknologisk fantasi og formåen
Authors: Hansen Thomas Illum , Thruelsen Dorthe Kingo , Skinnebach Lotte Hofer
Published: July 2023

Med denne artikel præsenterer vi baggrund, rammesætning, teoriudvikling ogresultater i forbindelse med et større, tværfagligt refl ek sionsforløb om teknologiforståelsei de to læreruddannelser i henholdsvis Odense og Jelling. I forbindelsemed rammesætningen beskriver vi organiseringen af didaktiske refl eksionsrum ogundersøgelsesfællesskaber. Udgangs punktet er et dobbelt didaktisk perspektiv påteknologiforståelse som fænomen og som gryende faglighed, der udfordrer de eksisterendefagligheder i både folkeskolen og læreruddannelsen. Resultatet er et budpå, hvordan udvikling og forskning i relation til læreruddannelsen kan bidrage tilat etablere et bredere og mere helheds orienteret perspektiv på teknologiforståelseend det, der udvikles i og som videnskabsfag og skolefag.
Læreres og lærerstuderendes forståelse af computationel tankegang i relation til matematikundervisningen: Et hermeneutisk litteraturreview
Authors: Kaup Camilla Finsterbach
Published: July 2023

Formålet med denne artikel er at undersøge eksisterende litt eratur for at skabe overblikover viden, der relaterer sig til læreres og lærerstuderendes holdninger til ogforståelse af begrebet computationel thinking (CT) i relation til matematikfaget. Der erarbejdet ud fra en hermeneutisk forståelse i tilblivelsen af litt eraturreviewet, og i altindgår seks centrale tekster. Det identifi ceres, at lærerne og de lærerstuderende ofteikke har kendskab til CT, og de mangler klare idéer til, hvordan det kan inddragesi undervisningen. Det ses derfor centralt, at lærerne og de lærerstuderende igennemkompetenceudvikling støtt es i at udvikle brugen af CT igennem didaktiskefaglige situationer, de kan relatere til egen undervisningspraksis. Ved at have fokuspå kompetenceudvikling kunne der ses en ændring i deltagernes forståelse af CT,særligt i relation til fagområdet matematik. Ligeledes var arbejdet med højniveauprogrammeringssprog med til at udvikle lærernes og de lærerstuderendes forståelsefor CT og herunder også deres matematiske begrebsforståelse.
Skolekultur, lærerstart og fodfæste
Authors: Frederiksen Lisbeth Lunde , Halse Elisabeth , Jensen Inge Raun
Published: July 2023

Artiklen undersøger hvilke forståelser af begrebet skolekultur, der har betydningfor nye lærers professionelle, personlige og sociale udvikling i starten af deres karriere,der kan identifi ceres i empirisk forskning i perioden (2010-16)? Der fremanalyseres4 centrale temaer: samarbejde, mestre kontra performe, stemning og karriere.Alle studier anbefaler horisontale, sociale relationer og professionel frihed, når nyelærere samarbejde og at samarbejdet skal handle om selvformulerede åbne spørgsmålrelateret til udfordringer i praksis. Et studie peger på at nye læreres self-effi -cacy og depressionsfølelse er stærkt knytt et til skolekulturens målorientering ogat samarbejde eller mentoring af nye lærere med lav self-effi cacy i en skole medlav mestringsorientering eller høj performanceorientering kan føre til endnu lavereself-effi cacy eller sågar depression, hvorfor mentoring ikke altid kan siges at værepositiv. To studier peger på vigtigheden af skolekulturens imødekomne og venligestemning for at den nye lærer kan udvikle sig professionelt. Organisatorisk kaos ogmanglende procedurer kan påvirke skolekulturen negativt og betyde manglendeprofessionel udvikling, og dermed også den nye læreres mulighed for fodfæste.Et studie peger på vigtigheden af, at skolekulturen giver plads til at forholde sigtil sin karriere. Allerede fra første dag, er optaget af deres karriere og fremtidigarbejdsliv, særlig på tre områder: Undervisning – blive en god lærer (horisontal),Ledelse– opad i hierarkiet (vertikalt),Work-life balancen .
Stressdiskurser i det senmoderne lærerliv
Authors: Kappelgaard Lisbeth Harritz
Published: July 2023

Arbejdsrelateret stress blandt lærere udgør en stigende udfordring i de Skandinaviskelande. I Danmark er stress og andre psykiske belastningsreaktioner årsag tilhalvdelen af alle tidlige invalidepensioneringer. Gennem arbejdslivsfortællinger fralærere, invalidepensionerede lærere samt øvrige aktører i folkeskolen, sætt er artiklenfokus på oplevede udfordringer i lærergerningen. Gennem artiklen konkluderesdet, at der i særlig grad opleves udfordringer i relation til ændrede forventninger fradet omkringliggende samfund og det politiske system, som har betydning for denmåde lærerens rolle og ansvarsområde anskues på. Desuden italesætt es det somudfordrende at balancere mellem nærhed og distance i relationsarbejdet. Slutt eligtbeskriver nogle lærere, hvordan det kan være vanskeligt at tale åbent om oplevedestressbelastninger – både hos sig selv og kollegaer, hvilket kan vanskeliggøre atman kommer udfordringer til livs.
Między Chicago i post-Chicago. Czy należy zmienić wytyczne UE w sprawie kontroli niehoryzontalnych koncentracji?
Authors:   Wydział Prawa i Administracji Uniwersytetu Łódzkiego, Grzejdziak Łukasz
Published: July 2023

Ocena dopuszczalności koncentracji pionowych w znacznym stopniu opiera się na paradygmatach szkoły chicagowskiej prawa i ekonomii. Jej zwolennicy podkreślają pozytywne skutki, jakie tego rodzaju koncentracje wywierają na konkurencję, deprecjonując jednocześnie znaczenie ich ewentualnych antykonkurencyjnych następstw. Uważali oni, że koncentracje pionowe nieuchronnie prowadzą do efektywności gospodarczych, w tym do eliminacji podwójnej marży. Aktualne podejście organów konkurencji do oceny dopuszczalności koncentracji wertykalnych jest obecnie krytykowane po obu stronach Atlantyku jako zbyt łagodne i niespójne ze współczesnym dorobkiem nauk ekonomicznych. W Stanach Zjednoczonych krytyka ta zaowocowała przyjęciem w 2020 r. nowych wytycznych Federalnej Komisji Handlu i Departamentu Sprawiedliwości w sprawie koncentracji pionowych. Mimo że przyjęły one znacznie surowsze reguły oceny, oba organy konkurencji USA zdecydowały o podjęciu prac nad kolejnymi, idącymi dalej w tym kierunku wytycznymi. Unijne wytyczne Komisji dotyczące połączeń niehoryzontalnych są w większym stopniu, niż ich amerykański odpowiednik, spójne ze współczesnymi poglądami nauk ekonomicznych i rezultatami badań empirycznych. Nadal jednak niezbędna jest ich korekta.
Defi niowanie rynków produktowych w gospodarce cyfrowej w świetle projektu Zawiadomienia Komisji w sprawie defi nicji rynku właściwego do celów unijnego prawa konkurencji z 8 listopada 2022 roku
Authors:   Katedrza Biznesu Międzynarodowego, Szkoła Główna Handlowa w Warszawie, Targański Bartosz
Published: July 2023

Obwieszczenie w sprawie defi nicji rynku właściwego do celów wspólnotowego prawa konkurencji (dalej: obwieszczenie) poddawane jest przeglądowi po raz pierwszy od opublikowania w 1997 roku. Od tego czasu skokowy wzrost prędkości przesyłu danych przy jednoczesnym wzroście mocy obliczeniowych procesorów umożliwił w dużym stopniu przeniesienie procesów sprzedaży i dystrybucji produktów do sieci teleinformatycznych. Gospodarka cyfrowa, która powstała w wyniku tych procesów, cechuje się konkurencją o nowym dynamicznym charakterze. Oprócz tradycyjnych parametrów konkurowania, takich jak cena i jakość produktów, pozycja rynkowa jest wyznacznikiem reklamy internetowej, dostępu do danych, efektów sieciowych, aspektów wielostronnych, zachowań nabywców i obecności przedsiębiorcy w wielu kanałach dystrybucji. Niezbędne jest więc dostosowanie podstawowego narzędzia pomiaru siły rynkowej, jakim jest defi nicja rynków produktowych, do nowych realiów cyfrowych. Celem artykułu jest przedstawienie głównych aspektów defi niowania rynków właściwych w gospodarce cyfrowej w dokumencie zastępującym obwieszczenie, tj. projekcie Zawiadomienia Komisji w sprawie defi nicji rynku właściwego do celów unijnego prawa (dalej: projekt zawiadomienia). Zasady defi niowania rynków właściwych w ramach gospodarki cyfrowej stanowią nową sekcję dokumentu i podsumowują dorobek decyzyjny Komisji Europejskiej (dalej: Komisja lub KE) z najgłośniejszych spraw ostatnich lat dotyczących potentatów z Doliny Krzemowej. Lektura dokumentu nasuwa ogólną wątpliwość, na ile nowe wskazówki będą pomocne przeciętnym przedsiębiorcom, np. producentom i dystrybutorom towarów oferowanych konsumentom, w samodzielnej ocenie pozycji rynkowej. W artykule komentuję również kwestię badania substytucyjności wśród kupujących na platformach wielostronnych w świetle decyzji Komisji w sprawie Amazon Marketplace i Amazon Buy Box wydanej 20 grudnia 2022 r., czyli już po opublikowaniu projektu zawiadomienia.
Die glückliche Hand de Arnold Schönberg: Una re-composición electroacústica
Authors: Mandolini Ricardo
Published: July 2023

En este artículo sostengo que la consideración de la obra de arte como un valor absoluto no es una fatalidad sino que el arte, como producción humana, se encuentra sometido a la misma relatividad en el tiempo que su o sus creadores. En cuanto a la música, si nuestra mente continúa elaborando la memoria de lo que escuchamos, es porque ella nos está invitando a continuar, a proseguir la obra, haciendo emerger un infinito número de virtualidades y de potencialidades que la obra misma conlleva.

Palabras clave. Estética, Musicología, Creación musical, Electroacústica, Die glückliche Hand, Arnold Schönberg.
Aquel insigne representante de la música. La significación narrativa del compositor Gomis entre 1837y 1848
Authors: Múrcia i Cambra Miquel Àngel
Published: July 2023

La figura del compositor del Romanticismo Melcior Gomis está siendo sometida a una profunda revisión metodológica y musicológica. En el número octavo de la revista Itamar nos sumergimos en los relatos variantes y alternativos que se ofrecieron después de la muerte del músico hispánico en 1836. Nuestra aportación demostró la fabricación de la imagen del mito romántico en el año de su muerte. Así pues, en las siguientes páginas profundizaremos en esta línea de investigación en el período enmarcado entre 1837 y 1848. En este período Gomis siguió presente en los artículos especializados y en las ediciones musicales una década después de su muerte. Nuestro estudio se centra en la observación de la fijación de sobresignificados y la adquisición de valores sobre su anhelo biográfico. Con la identificación de las ficciones y de la huella de Gomis en los discursos posteriores a su muerte, obtendremos una visión más completa del proyecto de vida del compositor.
Palabras clave. Gomis, Ilusión biográfica, Romanticismo, Anhelo biográfico, Compositor, Biografía, Ficción narrativa, París.
Staging a Musical Self through Paper, Canvas, and The Screen: A Taxonomy of Musicians’ Self-Portraits from the Renaissance to the Digital Age
Authors: Pizà Antoni
Published: July 2023

. Musicians have engaged in visual self-representation at least since the Renaissance and have continued the tradition to modern times with contemporary practices including selfies and generative technology and AI art. The practitioners include so-called classical composers (Schoenberg is a well-known case) and performers (Caruso, for instance), but also pop singers and musicians (Joni Mitchell and Patti Smith, among others). The media used varies from oil on canvas to drawings on paper, from traditional photography to digital media. In some instances, there are grave, pompous self-representations, but caricatures also abound (e.g., Donizetti). There are also some miscategorized self-portraits (i.e., portraits misattributed to their subject) and many more purposely fake or mocking self-portraits including contemporary Roman musician and comic Federico Maria Sardelli, which would indicate that the category of “self-portrait” adds value and prestige to any visual artifact. Furthermore, many visual artists, especially during the Renaissance, present themselves as faux musicians, possibly as a sign of nobility or education. Slowly but surely, women have also claimed a space in the realm of musicians’ self-portraits since many of them, belonging to the higher echelons of society, were both visual artists and active musicians (Maria Antonio of Bavaria, Ducreaux and Schröter, among others). In some instances, the musician is truly obsessed with his or her own image to the point that, in addition to visual self-representation, he or she also provides written autobiographies and even musical self-portraits in sound (Spohr and Schoenberg, for instance). In the end, any attempt to create a taxonomy of “musicians’ self-portraits” amounts to a serious interrogation of the usual categories of “self-portrait,” “musician,” and “artist” and to the staging of a vulnerable, doubtful self that wants to be reasserted.
Keywords. Self-portraits, Oil on canvas, Drafts on paper, Photography, Selfies, Digital and AI art.
Música y sonido en el cineasta-compositor Charles Chaplin
Authors: Gómez Alemany Joan
Published: July 2023

Introducimos la reflexión con el análisis de la relación de Charles Chaplin con los compositores de música clásica de su tiempo. Examinamos las múltiples influencias y estilos en los que Chaplin se apoya para componer la música de sus películas. Eso incluye el sonido en el más amplio sentido: ruido, sonido electrónico y vocal. Abordamos la conexión entre cine mudo y sonoro. Finalizamos con el análisis de tres películas importantes en su filmografía: Tiempos Modernos, en la que realiza una crítica de las tecnologías y la economía política. El gran dictador, mediante el uso de la música de Wagner y Brahms crea una contraposición estética e ideológica. Y, por último, Candilejas que es la más compleja de las tres en cuanto a la adaptación de la música y el sonido.
Palabras clave. Charles Chaplin, Cine, Música, Sonido, Interdisciplinaridad.
¿Es diferente ser músico que artista?
Authors: Ferman Polly
Published: July 2023

Ser músico es un privilegio que se nos otorga o elegimos por nuestro propio interés. Es un lenguaje de comunicación diferente que no necesita traducción, es universal.
Podemos elegir convertirnos en un intérprete y tocar nuestra música para que otros la disfruten.
Necesitamos motivación generada desde nuestras emociones para convertirnos en artistas y volvernos únicos. Aprender a expresarlas a través de la interpretación ayudará a las personas a reconocer su arte.

Palabras clave. Músico, Intérprete, Motivación, Emociones, Artista.
Encuentros: músicas españolas y francesas
Authors: Carretero Pilar
Published: July 2023

Trío Zaniah presenta en una serie de conciertos un programa dedicado a la música escrita por mujeres. Su labor de investigación les ha permitido realizar una confrontación entre canción española y mélodie francesa, con piezas de finales del siglo XIX y principios del siglo XX.
Asimismo, interpretan composiciones contemporáneas escritas o arregladas especialmente para la formación por conocidas compositoras españolas.
Su principal motivación es la recuperación y difusión de estas músicas, poco conocidas u olvidadas, y darles vida sobre un escenario de manera que puedan llegar al mayor público posible.

Palabras clave. Música de cámara, Música española contemporánea, Música francesa, Igualdad, Compositoras.
C#Seesharp - the "gym of emotions" of the international pianist and performig coach Gloria Campaner
Authors: Caruso Giusy
Published: July 2023

Interview with the pianist Gloria Campaner
Entre la protección y el cuidado: La construcción de acogida desde lo local
Authors: Ruiz-Estramil Ivana Belén
Published: July 2023

Este escrito profundiza en las iniciativas ciudadanas de acompañamiento a personas solicitantes de protección, con el objetivo de analizar las potencialidades de cara a la construcción de una cultura de la hospitalidad. El objetivo perseguido es analizar las distintas bases sobre las que se construye la “protección” por parte de la acogida institucional, y el “cuidado” por parte de las iniciativas ciudadanas. Para ello, este escrito se apoya en dos procesos investigativos basados en una metodología cualitativa, con el recurso a entrevistas en profundidad y fuentes secundarias de información. Los principales resultados recogidos se detienen en primer lugar en el reconocimiento de las necesidades de protección por parte del procedimiento de asilo, seguidamente atendiendo a la acogida como continuidad de la protección, para finalmente atender a las iniciativas ciudadanas vinculadas al acompañamiento de las personas en movilidad forzada. A modo de discusión se recogen las potencialidades que plantean las iniciativas ciudadanas como apertura de la acogida y crítica a la noción hegemónica de protección, recoger en las conclusiones los riesgos y obstáculos pendientes también dentro de las iniciativas de apertura de la acogida, recogiendo por último algunas orientaciones futuras para re-pensar la acogida desde lo local.
Reseña. La agricultura a tiempo parcial en la Montaña de Alicante
Authors: Cuello-Llobell Francesc
Published: July 2023

En este trabajo se intenta dar una imagen clara y explicativa del fenómeno conocido como agricultura a tiempo parcial en la comarca de la Montaña de Alicante (Alicante, España). En él, mediante entrevistas-encuestas y otras fuentes estadísticas se buscan las razones de esta práctica, caracterizando las explotaciones y productores, en un contexto singular como el que encontramos en esta zona geográfica. Las fuentes estadísticas oficiales proporcionan unos datos que muchas veces se corroboran en las entrevistas pero que, otras veces, resulta difícil derivar una explicación lógica y coherente. Finalmente, se da cuenta de la importancia de las iniciativas públicas en relación al fenómeno y se esbozan las tendencias que se pueden seguir, muchas de ellas observadas hoy en día con el paso del tiempo.
 
Palabras clave: espacio rural, multifuncionalidad, gestión del espacio, cultura.
Universidad y desarrollo territorial. El papel de la UNPAZ en José C. Paz, Buenos Aires, Argentina
Authors: Rodríguez María Florencia
Published: July 2023

Este artículo aborda la relación entre universidad y ciudad tomando en cuenta el caso de la Universidad Nacional de José C. Paz (UNPAZ). Esta universidad se localiza en el segundo cordón del conurbano bonaerense del Área Metropolitana de Buenos Aires (AMBA), en Argentina. Los hallazgos alcanzados sobre la base de un abordaje metodológico de tipo cualitativo, a partir de información secundaria y datos de fuente primaria (entrevistas semiestructurada a referentes y docentes históricos vinculados a la gestión universitaria, y funcionarios del municipio), permiten evidenciar el modo en que la inscripción territorial de la universidad en José C. Paz posibilitó instalar localmente y de manera progresiva el derecho a la educación, al mismo tiempo que fue generando cambios en clave urbana y a nivel ciudad. La edificación de instalaciones universitarias en el municipio de José C. Paz implicó nuevas inversiones públicas que abrieron paso a transformaciones urbanas en un área antiguamente postergada. En este sentido, las conclusiones obtenidas permiten reflexionar acerca del papel que ejerce la UNPAZ en el desarrollo territorial de un partido históricamente relegado, con impactos y transformaciones en el entorno local. Una universidad pública que surte efectos en el territorio, pieza clave como componente edilicio, social y urbano.
Tendencias de los Indicadores de Progreso Social en Ciudad Juárez 2010-2020
Authors: Jiménez Castañeda Ramsés , Velasco Rodríguez Gabriela , Melgoza Ramos Ricardo
Published: July 2023

En la presente investigación se realiza un análisis de las tendencias de los indicadores de Progreso Social en Ciudad Juárez, generalmente estos indicadores son calculados para medir el avance de los países, según la metodología de (Porter et al., 2017), en él se ven los avances que se han tenido en los 12 componentes y más de 50 indicadores que hablan sobre las necesidades humanas satisfechas, tales como la seguridad del entorno, el acceso al agua, a los servicios sanitarios, electricidad y a la salud, además del acceso a la educación hasta nivel secundaria y al  internet conectándose a través de un teléfono o computadora, midiendo la tasa de alfabetización y la calidad de las áreas verdes y el cuidado de las mismas, así como la esperanza de vida y enfermedades como la diabetes, la participación electoral, los embarazos en adolescentes y la percepción que se tiene de la corrupción, la oportunidad de ingresar a la universidad y la discriminación. Se hace un análisis longitudinal usando los datos del 2010, 2015 y 2020, analizando lo que ha ocurrido en una década en Ciudad Juárez y cuales indicadores van a la baja y cuales al alza y si eso ayuda a mejorar la calidad de vida de los juarenses. Este es el primer análisis que se desarrolla de este tipo en Ciudad Juárez.
Assessment of the impact of the formation of water resources and the quality of surface waters of the Lena River basin
Authors: Chekmareva Diana Petrovna , Lobchenko Evgeniya Efimovna , Romanyuk Oksana L'vovna , Pervysheva Ol'ga Aleksandrovna , Fedotova Ol'ga Leonidovna
Published: July 2023

Ongoing active development of natural resources, changing climatic conditions (including permafrost melting) In Eastern Siberia, it is necessary to control changes in the ecological state of the environment, one of which is surface water. The Roshydromet system has established and successfully operates a network of regime observations of the state and pollution of surface waters of the Russian Federation, ensuring the unity of measurement of the content of major pollutants in water according to uniform methods certified in accordance with the requirements of regulatory documents of the Russian Federation and international standards. In this paper, the formation of the quality of the surface waters of the Lena River basin under conditions of non–stationary climatic processes on the one hand and the anthropogenic component on the other is considered. Based on the analysis of statistically processed long–term data (2011-2021) obtained by the state monitoring network of Roshydromet, an assessment of the water quality of the Lena River and its major tributaries - the Vitim, Olekma, Aldan, Vilyu rivers is given. The spatio-temporal distribution of characteristic pollutants in the water of the rivers of the basin has been studied: organic substances (according to BPK5 and COD), phenols, petroleum products, iron, copper and zinc compounds. It was found that in the conditions of the Arctic climate, the seasonal distribution of organic substances in surface waters was insignificant. The presence of heavy metal compounds in the water of the Lena River basin water bodies is mainly due to anthropogenic sources of pollution. In the long-term plan, the water of the rivers of the Lena River basin was assessed as the 3rd satisfactory quality class.
Radial differentiation of chemical composition of cryogenic soils in the Chara river valley, north of Transbaikalia
Authors: Vasil'chuk Yurij Kirillovich , Ginzburg Alexander Pavlovich
Published: July 2023

The subject of the study is the content of iron compounds and their radial differentiation in the profiles of cryogenic soils of the Chara River valley (Transbaikalia). The studied soils belong to post-pyrogenic permafrost gleyzems, the depths of the seasonal active‐layer of these soils are from 34 to 44 cm. Macronutrient concentrations, with the exception of Si, rarely exceed 5.0%, while the silicon content reaches 24.3%. Si is also characterized by removal from the upper part of soil profiles and accumulation in permafrost soil horizons. The highest concentrations are characteristic in the O horizons (Mg – 4.8 and Ca – 1.5 mg/kg) for a significant part of the macroelements. The trace elements, Sr and Zr are distributed vary contrastingly (from 5.0 to 29.7 and from 5.6 to 47.1 mg/kg). Values of the R coefficient from 0.3 to 0.9 indicate the initial stage of post-pyrogenic restoration of soil properties, and the active accumulation of Mg, Ca, Ti, Fe, Sr, and other elements in the upper part of oxidized-gley permafrost gleyzem observed in the profile is a sign of active restoration. The soils contain about 3.4% iron, which more than 60–75% is the silicate group of compounds (Feс). The moisture content of soils and the prevailing reducing environmental conditions contribute to the formation of monotonous distributions in their profiles, and in soils without signs of stable hydromorphism, permafrost horizons contain almost 2 times more Feox and Feextr.
Food crisis in the Yakut region during the First World War (July 1914 – February 1917)
Authors: Dolidovich Olesya Mikhailovna , Starovoitova Evgeniya Nikolaevna
Published: July 2023

The authors investigate the reasons for the shortage and high cost of food in the Yakutsk region during the First World War, as well as the activities of the Regional Food Committee, authorized by the Special Meeting of the Governor R. E. Witte and the City Duma of Yakutsk to prevent a food crisis. The facts and events within the framework of the problem under study are systematized, the narrative is built on the basis of the problem-chronological method. The historical-systemic method made it possible to determine the factors that caused the rise in prices and the emergence of food shortages. The historical-genetic method made it possible to analyze the development of the situation in the food sector in dynamics, to trace its transformation into a crisis state. The authors concluded that the Yakutsk region, which was a special region within the Russian Empire (geographically remote, occupying a vast territory, with an undeveloped transport infrastructure, and at the same time of strategic importance), was dependent on food supplies for food. As a result of the First World War, the physical and economic availability of food and, above all, bread has declined sharply. Administrative regulatory measures of local authorities could not be effective in the context of general negative transformations in the economic sphere. The food crisis came in the third year of the war - in 1916-1917. Since that time, the inhabitants of the region could rely only on local agricultural production, which was extremely unstable.
Russian History in the mirror of the Political situation in China in the 50s of the XX century (based on school history textbooks)
Authors: Efimenko Nikolai Aleksandrovich
Published: July 2023

This article highlights the analysis of the textbook of universal history for the 9th grade, printed in China in the 1950s. The paper examines the features of the descriptions of Russia in the textbook, as well as the relationship between textbooks and the policy pursued by China during this period. Text criticism, linguoculturological and imagological analysis are the main methods of our research. The results of the work indicate that the Chinese government in the historical period considered in the textbook sought to form a certain image of Russia among schoolchildren, which was associated with events in Russian-Chinese relations. The study of Chinese history textbooks made it possible to analyze the historical perspective and cultural dynamics between Russia and China during the Cold War. The importance of studying history textbooks and their influence on the worldview of students is emphasized in the conclusions of the article. In addition, it is necessary to analyze the political and ideological goals that can be embedded in history textbooks. So, this study allowed us to understand more deeply the historical perspective of Russian-Chinese relations during the Cold War and to realize the importance of studying history textbooks. The results of the study can be used in the education system, as well as in research in the field of history and international relations.
Dietary Restriction Impacts Peripheral Circadian Clock Output Important for Longevity in Drosophila
Authors: Hwangbo Dae-Sung , Kwon Yong-Jae , Iwanaszko Marta , Jiang Peng , Abbasi Ladan , Wright Nicholas , Alli Sarayu , Hutchison Alan L. , Dinner Aaron R. , Braun Rosemary I , Allada Ravi
Published: July 2023

Circadian clocks may mediate lifespan extension by caloric or dietary restriction (DR). We find that the core clock transcription factor
Clock
is crucial for a robust longevity and fecundity response to DR in
Drosophila
. To identify clock-controlled mediators, we performed RNA-sequencing from abdominal fat bodies across the 24 h day after just 5 days under control or DR diets. In contrast to more chronic DR regimens, we did not detect significant changes in the rhythmic expression of core clock genes. Yet we discovered that DR induced de novo rhythmicity or increased expression of rhythmic clock output genes. Network analysis revealed that DR increased network connectivity in one module comprised of genes encoding proteasome subunits. Adult, fat body specific RNAi knockdown demonstrated that proteasome subunits contribute to DR-mediated lifespan extension. Thus, clock control of output links DR-mediated changes in rhythmic transcription to lifespan extension.
Identification of sterile a-motif domain-containing 9-like as a potential biomarker in patients with cutaneous melanoma
Authors: Ye Junsen , Tang Haidan , Xie Chuanrui , Han Wei , Shen Guoliang , Qian Ying , Xu Jin
Published: July 2023

Skin cutaneous melanoma (SKCM) is one of the most aggressive malignancies, accounting for approximately 75% of skin cancer-related fatalities annually. Sterile a-motif domain-containing 9-like (SAMD9L) has been found to regulate cell proliferation and suppress the neoplastic phenotype, but its specific role in SKCM remains unknown. To investigate the cancer-associated immunology of SKCM and the role of SAMD9L in tumor progression, we conducted an integrative bioinformatics analysis that revealed elevated expression levels of SAMD9L in SKCM. ROC curves and survival analyses confirmed the considerable diagnostic and prognostic abilities of SAMD9L. Moreover, a real-world cohort of 35 SKCM patients from the First Affiliated Hospital of Soochow University showed that higher expression levels of SAMD9L were associated with better prognosis. We performed validation experiments, including cell culture, generation of lentiviral-transfected SKCM cell lines, cell proliferation assay, and transwell assay, which demonstrated that down-regulation of SAMD9L significantly promoted proliferation and migration capacities of SKCM cells. Additionally, SAMD9L expression was found to be strongly linked to immune infiltration. Our results revealed a positive correlation between SAMD9L and XAF1 expression, suggesting that SAMD9L may serve as a prospective prognostic indicator of SKCM with co-expressed XAF1 gene. In summary, our findings indicate that SAMD9L may serve as a promising prognostic and therapeutic biomarker and play a critical role in tumor-immune interactions in SKCM.
Oral Zinc as an Adjunct in the Treatment of Enteric Fever: A Randomised Double-blinded Controlled Trial
Authors: Pachamuthu Ramakrishnan Arumanandal , Sampath Sowmya , Rajamanickam Ramya , Jayaraman Aparna , Sivathanu Shobhana
Published: July 2023

Introduction: Enteric fever is an important tropical disease which takes an average of five days for defervescence even with effective antibiotic therapy. Zinc has been successfully used as an adjuvant in diarrhoeal disease. If addition of oral zinc can lead to reduction in time to defervescence, it will be a useful adjuvant in the therapy of enteric fever. Aim: To determine the effect of oral zinc supplementation, along with standard antibiotic therapy, for early defervescence among children with enteric fever. Materials and Methods: This double-blinded, randomised controlled trial was conducted at the Department of Paediatrics, ESICMC and PGIMSR, Chennai, Tamil Nadu, India from November 2014 to August 2016. A total of 58 children aged <12 years with enteric fever were included and were randomised to receive 40 mg elemental zinc per day (n=29) or placebo (n=29) for one week. All children received intravenous ceftriaxone (75 mg/ kg every 12 hours) until five days after defervescence. The main outcome measures studied were time taken for defervescence of fever and resolution of toxaemia. Kaplan-Meier survival analysis was used to compare differences in the time to resolution of toxaemia and defervescence of fever between the two groups and the log-rank test was used to test for significance. Results: The mean age of the children of the two groups was 6.48±3.15 years and 7.55±2.59 years, respectively. The mean time for fever defervescence was shorter among the zinc supplemented children than among the children in the control group (2 vs 3 days, p-value=0.043). Resolution of toxaemia was noted earlier in the zinc group than in the control group (75% vs 43%, p-value=0.054). Conclusion: Zinc when used as an adjunct along with standard antibiotic therapy in children with enteric fever, resulted in earlier defervescence of fever.
Role of Computed Tomography Scan in the Assessment and Management of Blunt Splenic Trauma in a Tertiary Care Hospital, Assam, India
Authors: Agarwal Nirmal Kumar , Barbhuiya Eunus Ahmed , Vasan S Sabari
Published: July 2023

Introduction: Trauma is the most common cause of mortality and morbidity in young individuals. Penetrating splenic injuries are more common than blunt injuries. The management of blunt splenic trauma has substantially evolved over the last few decades, moving from routine splenectomy to preserving the spleen wherever feasible. Aim: To determine the role of Multidetector Computed Tomography (MDCT) in the diagnosis and treatment of blunt splenic trauma. Materials and Methods: This hospital-based retrospective study was conducted in Department of General Surgery, Tezpur Medical College and Hospital, Tezpur, Assam, India. During the study period, there were 132 cases of blunt trauma abdomen. Among them, 122 patients had undergone MDCT of the abdomen. Clinical details of those 122 patients who did MDCT for possible blunt trauma of the abdomen were traced and were admitted to the Department of General Surgery, Tezpur Medical College and Hospital, Tezpur, Assam, India during the period from 1st October 2021 to 31st August 2022 retrospectively. The clinical data of these 122 patients were recorded. Of these 122 patients who underwent MDCT, 21 had splenic injuries. The patients who were treated conservatively were traced and the outcome of the treatment on follow-up, from the clinical notes. The preliminary MDCT findings of the patients were correlated with the final diagnosis and treatment. Fisher’s-exact tests and Chi-square were used for statistical analysis. Results: The 21 splenic injuries in this study were classified based on the American Association for the Surgery of Trauma (AAST) grading scales for organ injury, and 14 (66.67%) had Non Operative Management (NOM). Of the four patients with Contrast Material Extravasation (CME), all of them had undergone laparotomy related to the spleen (100%) and demonstrated active bleeding during surgery, but only three of the remaining 17 patients without CME (17.65%) required laparotomy related to the spleen; the difference was statistically found to be significant (p<0.01). Conclusion: The accurate diagnosis provided by MDCT evaluation of blunt splenic injuries helps in formulating the right approach for better management.
Quality Changes of Common Edible Frying Oils during Frying of Traditional Foods
Authors: Rashid Farjana , Akter Farzana , Khan Md. Momin , Rana Md. Suman , Bari Tasmia , Das Moumita , Islam Md. Ahmadul , Aziz Mohammad Gulzarul
Published: July 2023

This study aimed to examine the impact of the frying process on the physical and chemical properties of widely consumed edible oils. Soybean, palm, and mustard oils, as well as raw dulpuri and singara products, were procured from the nearby marketplace. The oils underwent five consecutive frying cycles at temperatures exceeding 160°C and were subjected to five hours of heating. Analyses including determination of free fatty acid (FFA), peroxide value (PV), saponification value (SV), iodine value (IV), and optical density (OD) at a wavelength of 425 nm were performed. Following multiple rounds of frying and heating, the levels of FFA, PV, and oxidative stability index exhibited an increase, whereas the IV demonstrated a decrease across all three types of oils. The OD of soybean and palm oils exhibited an upward trend, whereas that of mustard oil initially displayed a decline, followed by a gradual ascent. In comparison to soybean and mustard oils, palm oil exhibited the most noteworthy escalation in FFA, PV, SV, and OD parameters. The levels of FFA, PV, SV, and oxidative stability in palm oil exhibited an increase from 0.23 to 2.6 mg KOH/g sample, 5.0 to 10.2 m.eq/kg, 195 to 206 mg KOH/g sample, and 0.37 to 0.85, respectively. Conversely, IV decreased from 51 to 43 g I2/100 g. Sensory evaluation revealed that the palatability of food items fried in palm oil and soybean oil was comparable, with the products fried in mustard oil being ranked lower in terms of acceptability.
Customer Value Proposition for Precision Farming
Authors: Sojitra Dharmik V. , Dudhagara Chetan R.
Published: July 2023

A company's value proposition is established by the distinctive benefits and values it offers to its clients. Site-specific crop management (SSCM) and precision agriculture (PA) are farming management techniques that use technology to monitor and evaluate certain areas and crops. Between 2023 and 2030, the market for precision agriculture is anticipated to increase at a CAGR of 12.6%, reaching $15.6 billion. Precision farm planning, field maps, crop scouting, yield maps, and the estimation of input quantities are driving factors in this growth, along with the Internet of Things and advanced analytics.  A company's commitment to influencing the attitudes, beliefs, and behavior of its target market is stated in its value proposition. The goal of the study was to address agricultural issues and increase productivity and profitability for banana farmers in the Anand and Umreth Talukas. Educate stakeholders, decision-makers, and service providers on how to support precision farming techniques. The study, conducted in Anand and Umreth Taluka, Gujarat, involved 50 banana growers with over 2 ha of land, using a descriptive design and semi-structured survey. Formulating a customer value proposition for identifying the problems faced by banana growers will help in understanding the current issues and areas of improvement within the agricultural sector. The findings of this research were contributing to the knowledge and understanding of precision farming in Anand and Umreth Talukas. Customers place a premium on product quality, the accessibility of the sales staff, and price, while farmers must deal with issues including disease, weather, nutrition, insect pests, and irrigation. Irrigation was viewed as less significant than weather and illness, which were found the major problems in the study area. Decision-making in agriculture depends heavily on weather forecasts and practices. A substantial effort was needed to improve agricultural practices because of the influence of climate change, input market accessibility, and remote farm access.
Growth Performance and Survival of Malabar Spinach (Basella alba) Applied with Different Volume of Seawater
Authors: Mancao Liezl S. , Mariarica M. Angcog , Monteza O. Velasco
Published: July 2023

Aims: The study focused on growth performance and survival of Malabar Spinach (Basella alba) applied with different volume of seawater, in Brgy. Bolila, Malita, Davao Occidental.

Study Design: A experimental research design was employed in the study to determine indicators that were formulated to know the survival, number leaves and growth performance of the Malabar Spinach (Basella alba). Completely randomized design technique was employed for data gathering. (ANOVA) for analyzing. Mean, percentage and average frequency used in analyzing the findings of the data.

Place and Duration of Study: The study was conducted between April 14, 2021 and May 31, 2021.

Methodology: The experiment was arranged completely randomized design with three replicates for each treatment. There was one plant in each pot and five treatments in each replicate. CRD (Complete Random Design) with (5) treatments and replicates of three (3). The treatment was the following: Treatment 1 – tap water, Treatment 2 – 5ml seawater, Treatment 3 – 10ml seawater and 10ml tap water, Treatment 4 – 15ml seawater and 15 tap water, Treatment 5 – 20 ml seawater and 20 ml tap water.

Results: Overall growth performance of Malabar Spinach showed that treatment 5 gained the highest value of mean, with 150 pots in terms of final increment on the Growth (height). In terms of number of leaves on the Growth of Malabar Spinach vegetable, treatment 5 obtained the highest value of mean in replicate 3, and treatment 1 which exhibited lowest value of mean. In terms of Survival Rate of Malabar Spinach (Basella alba), treatment 5 obtained the highest value of mean in sampling period with the corresponding final growth of effect with different ratio treatment of sea H2O samples and common water samples. Based on the results on the effect of seawater on the survival rate of Malabar Spinach, the result showed that treatments obtained the highest value of mean in terms of growth. In terms of number of leaves, Treatment 1 (tap water) obtained the highest value of mean. In terms of Survival, Treatment 1 obtained the highest value of mean

Conclusion: The result showed that treatments obtained the highest value of mean in terms of growth. In terms of number of leaves, Treatment 1 (tap water) obtained the highest value of mean. In terms of Survival, Treatment 1 obtained the highest value of mean. Based on the statistical One Way ANOVA, the results revealed that there is a statistically significant difference of growth performance of Malabar Spinach from the six treatments. The result showed that treatment 5 was the highest value of mean from the sampling period given. The results also revealed that there is no significant difference on the number of leaves, length and survival of Malabar Spinach vegetable as applied with different volume of seawater in six sampling of the study.
Ameliorative Potentials of Vernonia amygdalina on Acetaminophen-induced Acute Liver Injury in Mice
Authors: Son Hoang Le , Tu Ha Nguyen Anh , Minh Tran Van
Published: July 2023

Aims: To investigate the ameliorative potentials of Vernonia amygdalina on acetaminophen-induced liver injury in mice.

Methodology: Acetaminophen-induced acute liver injury was conducted on Swiss-albino mice weighing 25 - 30 g. Group A was maintained as a negative control (healthy liver) while group B was assigned as a positive control (damaged liver). Group C, D and E were orally administered 100 mg/kg, 200 mg/kg and 400 mg/kg of dried Vernonia amygdalina leaf extract, respectively. Meanwhile, group F, G and H were orally administered 100 mg/kg, 200 mg/kg and 400 mg/kg of fresh Vernonia amygdalina leaf extract, respectively, for 21 days. All mice were subjected to the assessment of symptoms including the severity of liver injury, biochemical assay and histological features. Phytochemical screening was also performed as per standard test methods.

Results: Phytochemical screening revealed the presence of biological active compounds including alkaloids, flavonoids, saponins and terpenoids. Steroids were found in dried Vernonia amygdalina leaf extract, but not in the fresh Vernonia amygdalina leaf extract. Compared to the pathological changes observed in the liver parenchyma, sinusoids and hepatocytes in the positive control group, lesions were determined to be less severe particularly in the group D receiving 200 mg/kg of dried Vernonia amygdalina leaf extract and group H receiving of 400 mg/kg of fresh Vernonia amygdalina leaf extract. This was in agreement with the biochemical assessment whose ALT and AST levels were significantly decreased into the normal range as compared to the negative and positive control groups. However, dose of 400 mg/kg dried Vernonia amygdalina leaf extract significantly elevated the serum ALT and AST.

Conclusion: Vernonia amygdalina has proven its ameliorative potentials on acetaminophen-induced liver injury in mice as determined by marked indicators on liver tissue and biochemical parameters including ALT and AST.
Mucormycosis in COVID-19 Pandemic: Study Involving Tertiary Hospitals in Aurangabad District, India
Authors: Muley Pooja , Gupta Himanshu , Gupta Abha
Published: July 2023

Introduction: An abrupt increase in the mucormycosis patients in india during the COVID 19 pandemic was observed. A collective study was conducted in tertiary care hospitals in Aurangabad.

Materials and Methods: A retrospective descriptive study was conducted in Aurangabad (Maharashtra), in association with the Aurangabad Municipal Corporation (AMC), oralcare.co.in and SNDH Hospital, Aurangabad. Data was collected by AMC from 3 major tertiary hospitals present in Aurangabad where treatment of Mucormycosis was done from May 2021 to July 2021. The data of total 135 patients with Mucormycosis was received by the AMC were included in the study. It included demographics of the patients, medical and clinical history, history of COVID 19, treatment of COVID 19, type of Mucormycosis, treatment and outcomes of Mucormycosis.

Results: In the present study, 74.7% of Mucormycosis patients were males. 77.4% of Mucormycosis patients were above 50 years of age. It was seen that about 67% of patients with Mucormycosis had diabetes mellitus as the most common risk factor. About 87.4% of patients had a history of COVID-19. Majority of the patients in the study population were diagnosed with the rhino-maxillary-orbital type of Mucormycosis which is 39%, followed by the rhino-cerebral type-25%. Only 1% patients showed rhiono-nasal -orbital type of Mucormycosis. 30% patients were not categorised into any type. All the patients in the study population received amphotericin B and surgical treatment. About 84.4% patients were discharged after the Mucormycosis treatment. 15.6% patients died during or after the treatment.

Conclusion: Mucormycosis was predominantly seen in male above the age of 50 years, COVID-19 infection and diabetes mellitus was common risk factor for Mucormycosis.