bluuebunny/crossref_metadata_2025 huggingface dataset:
TaqMan qPCR assays improve Pseudomonas syringae pv. actinidiae biovar 3 and P. viridiflava (PG07) detection within the Pseudomonas sp. community of kiwifruit
Authors: CAMPIGLI Sara , LUTI Simone , MARTELLINI Tommaso , RIZZO Domenico , BARTOLINI Linda , CARRAI Claudio , BASKARATHEVAN Jeyaseelan , GHELARDINI Luisa , PEDUTO HAND Francesca , MARCHI Guido
Published: September 2023

Kiwifruit is inhabited by a heterogeneous community of bacteria belonging to the Pseudomonas syringae species complex (Pssc). Only a few of its members, such as the specialist Pseudomonas syringae pv. actinidiae biovar 3 (Psa3), are known as pathogens, but for most of the species, such as P. viridiflava (Pv), a generalist with high intraspecific variation, the nature of their relationship with kiwifruit is unclear. Currently, no culture independent molecular diagnostic assay is available for Pv. In this study we validated two TaqMan qPCR diagnostic assays adopting a strategy that for the first time widely focuses on the Pseudomonas sp. community associated to kiwifruit in Tuscany (Italy). Primers and probes were designed based on the sequence of the lscγ gene of Psa3 (qPCRPsa3) and the rpoD gene of Pv phylogroup 7 (qPCRPv7). Both qPCR assays have a LOD of 60 fg of DNA. By using reference strains along with 240 strains isolated from kiwifruit and characterized ad hoc as Pseudomonas sp., specificity was proven for members of six of the 13 Pssc phylogroups. Moreover, to evaluate the possible effects of seasonal variations in the Pseudomonas sp. community composition on assay specificity, the assays were tested on naturally infected leaves and canes sampled from different orchards throughout a growing season. At last, by proving qPCR’s capacity to detect latent infections in artificially inoculated leaves, their potential usefulness in surveillance programs and for epidemiological studies was verified.
Symptomatic, widespread, and inconspicuous: new detection of tomato fruit blotch virus
Authors: BLOUIN Arnaud G. , DUBUIS Nathalie , BRODARD Justine , APOTHÉLOZ-PERRET-GENTIL Laure , ALTENBACH Denise , SCHUMPP Olivier
Published: September 2023

Tomato production is an important part of the Swiss vegetable production with most tomato crops grown in greenhouses. Tomato plants are vulnerable to diseases caused by viruses, which can have significant impacts on crop production. This study reports the first detection of tomato fruit botch virus (ToFBV, Blunervirus solani) in Switzerland, from a tomato production site at the southern part of the Ticino region. The symptoms observed indicated presence of a viral pathogen, but tests against the most common tomato viruses were negative. Immunocapture of double-stranded RNA and its subsequent sequencing on a Flongle flowcell (Oxford Nanopore Technologies) identified the presence of ToFBV and southern tomato virus. The genome of the Swiss ToFBV isolate was very similar to that available in GenBank. Datamining of the sequence read archives found the virus in two other countries, with a highly conserved genome. With this study, there are now 12 near-complete genomes of ToFBV available, and the virus is recorded from ten countries. This study underlines the importance of continuous monitoring and research on emerging viruses in tomato production.
A new disease of kumquat (Fortunella margarita) caused by Colletotrichum karsti: twig and branch dieback
Authors: LEONARDI Giuseppa Rosaria , AIELLO Dalia , CAMILLERI Gaetano , PIATTINO Valeria , POLIZZI Giancarlo , GUARNACCIA Vladimiro
Published: September 2023

Citrus fruit crops are important in many countries. Anthracnose, post bloom fruit drop, fruit stem-end rot, twig and branch dieback and gummosis, caused by Colletotrichum spp., are diseases that seriously threaten citrus production. Surveys of kumquat (Fortunella margarita) orchards were conducted in Eastern Sicily, Southern Italy, during 2022-23. Fungi isolated from twig and branch dieback of F. margarita were identified as Colletotrichum karsti through multi-locus (gapdh, tub2 and act) phylogeny. Pathogenicity and aggressiveness on detached apple fruit and kumquat plants were confirmed for a selection of representative isolates, although with different levels of disease incidence observed. This is the most comprehensive study on identification of C. karsti as the causal agent of twig and branch dieback of kumquat.
Grapevine dieback caused by Botryosphaeriaceae species, Paraconiothyrium brasiliense, Seimatosporium vitis-viniferae and Truncatella angustata in Piedmont: characterization and pathogenicity
Authors: DARDANI Greta , MUGNAI Laura , BUSSOTTI Simone , GULLINO M. Lodovica , GUARNACCIA Vladimiro
Published: September 2023

Grapevine Trunk Diseases (GTDs) are major threats in Mediterranean countries, causing economic losses due to reduced grape yields and long-term vine productivity, as well as death of grapevines. A survey was conducted in Piedmont (Northern Italy) during 2021-2022 to investigate the species diversity and distribution of GTD pathogens in this important Italian wine region. Morphological and multi-locus phylogenetic analyses (based on ITS, tef1, tub2, act and rpb2) identified species of Botryosphaeriaceae at high frequency, including Botryosphaeria dothidea, Diplodia mutila, Diplodia seriata and Neofusicoccum parvum. Other pathogens commonly associated with GTDs, including Eutypa lata, Fomitiporia mediterranea and Phaeomoniella chlamydospora, were also isolated. Less commonly isolated species included Neocucurbitaria juglandicola, Paraconiothyrium brasiliense, Seimatosporium vitis-viniferae and Truncatella angustata. Pathogenicity tests with two representative isolates of each species were carried out using one-year-old potted grapevine cuttings (‘Barbera’). All isolates (except N. juglandicola) caused brown wood necrotic vascular discolourations on inoculated plants and were successfully re-isolated. Effects of temperature on colony growth were also assessed. For all tested isolates there was no growth at 5°C, only four isolates (Botryosphaeriaceae) grew at 35°C, and optimum growth temperatures were between 20 and 25°C. This is the first record of Paraconiothyrium brasiliense and Neocucurbitaria juglandicola associated with symptomatic grapevines in Italy.
Poetics (spectrum) between pre-Islamic times and Islam
Authors: Reda Abbas Mohammed
Published: September 2023

أعني بذلك التغير الذي طرأ على مقدمة القصيدة في شعر صدر الإسلام عما كانت عليه في الشعر الجاهلي.وأعني بالطيف(مقدمة الطيف) حصرا وسأهتم بها،لأنها قليلة قياسا بالمقدمات الأخرى،ولأنها لم تنل اهتماما من الدارسين في شعر صدر الاسلام كبيرا وان ما كان من اشارات اليها ،فإننا سنفصل القول فيها . ثم ان لنا وجهتنا في تفسيرها ، بوصف الطيف انتقالا من عالم الى آخر مختلف  في طبيعته وزمنه ( داخليا ) من حيث الواقع والخيال ومن حيث الحاضر والماضي . وهذا ( الداخلي ) متأثر بــ ( الخارجي ) الذي يتمثل في طبيعة ظروف العصرين فالشعرين ، معنى وروحا ونفسا ولتحديد تطور مقدمة الطيف في شعر صدر الاسلام علينا ان نطل على حالها في الشعر الجاهلي للتعرف على اهم عناصرها وسماتها ، ومن ثم موازنتهما بما سيجد فيهما من تغير في شعر صدر الاسلام
A Burgundian Pilgrim Ampulla from Katymár
Authors: Rácz Bernát , Pánya István
Published: September 2023

In Hungary, community archaeology and the inclusion of metal detectorists in research projects have produced overwhelmingly positive results. In addition to the rapid increase in the number of known archaeological sites, many new finds found their way into museums over the last decade. The subject of the present study is one of these, a pilgrim ampulla found during a field survey connected to the medieval settlement research project of Bács-Kiskun County. The provenience of this small lead-tin alloy vessel can be reconstructed quite well due to the abundance of related Western European studies in the last two decades. The ampulla and its broader context provide a unique insight for the study of pilgrims embarking on their journeys from the Kingdom of Hungary.
Concepciones del cuerpo en relación con la educación y el aprendizaje. Estado del arte de la investigación
Authors: Rojas Muñoz Jenny Mercedes , Reyes Ruiz Lizeth
Published: September 2023

El presente artículo surge de la reflexión crítica de las investigaciones halladas en la revisión sistemática del tema, el cuerpo en relación con la educación, y hace parte de la elaboración del estado del arte de la tesis doctoral El cuerpo en la educación y sus implicaciones en el aprendizaje encaminado a la formación de sujetos para el conocimiento. El objetivo es reconocer el estado actual del tema en los aspectos teórico, pedagógico, discursivo, metodológico y práctico. Para ello, se empleó la metodología PRISMA, revisando las bases de datos Google Scholar, Scielo, Publindex y Dialnet, como resultados se encontraron 20 investigaciones doctorales realizadas entre 2012 y 2022, las cuáles fueron analizadas y puestas en discusión desde tres categorías: concepciones de cuerpo, concepciones de educación desde lo corporal, encuentro cuerpo y aprendizaje. Así mismo, el artículo ofrece conclusiones a nivel investigativo, teórico y práctico sobre el cuerpo en el ámbito educativo, que invitan a la continuación de este tema estudio y a la ampliación de los desarrollos teóricos y prácticos centrados en el reconocimiento del cuerpo desde las nuevas concepciones que lo revisten de sentido.
Análisis de las oportunidades de la economía naranja en Popayán (Cauca)
Authors: Saldarriaga Salazar María Eugenia , Concha Cerón Eduardo Andrés , Benítez Chará Willington Algeri
Published: September 2023

La economía naranja revela como los bienes y servicios comercializados adquieren importe intelectual porque nacen de ideas y conocimiento de sus autores, de esta manera ofrecen posibilidades de crear empresas naranjas y explorar mayores potencialidades empresariales, por lo anterior, se propuso como objetivo determinar las oportunidades que existen en Popayán (Cauca, Colombia), para la creación de empresas naranjas. El estudio se apoyó en autores como Buitrago-Restrepo & Duque-Márquez (2013) y Howkins (2013), para ahoandar en el tema. La metodología de investigación fue cualitativa de tipo descriptiva, se recopiló información con entrevista semiestructurada aplicada a la población objetivo constituida por 59 empresas de sectores: hotelero, comercializadoras, creativas y televisión y radio. En Popayán existe capacidad para creación de emprendimientos naranja, las empresas estudiadas tienen poco conocimiento de la economía naranja y no aprovechan sus bondades, es importante fortalecer industrias culturales y creativas, por lo cual es necesaria una política para fortalecer esta economía. Se concluyó que la economía estudiada se ha trabajado en la ciudad, y brinda beneficios que deben aprovechar. La revolución tecnológica y digital presenta oportunidades, que con ideas novedosas se proporciona herramientas para llevar productos y servicios a nuevos mercados. La riqueza cultural de la ciudad aún se puede explorar, presenta posibilidad para la generación de nuevas empresas y crear industrias innovadoras destacando el patrimonio cultural, arquitectónico y gastronómico.
Analisis comparativo de la oferta academica en microeconomía a nivel universitario
Authors: Sandrea Maryana , Boscán Mariby
Published: September 2023

Todo profesional de la economía requiere conocer aspectos relativos al comportamiento de los agentes económicos, mercados, entre otros, que son parte del contenido académico en el área microeconómica presentes en las instituciones universitarias.  Sin embargo, la enseñanza de la economía varía en forma importante entre diferentes casas de estudio, prevaleciendo una mayor o menor presencia del eje microeconómico con variaciones de contenido. Partiendo de los aportes conceptuales de Parkin (2018) y Krugman y Wells (2019), esta investigación pretende comparar la oferta académica en microeconomía disponible en una muestra de universidades consideradas. El estudio planteado es descriptivo-documental y de campo virtual, no experimental, utilizando la técnica de la observación. La muestra intencional estuvo constituida por 15 universidades. Entre los resultados obtenidos destacan que las universidades venezolanas incorporan una mayor cantidad de asignaturas en el eje microeconómico que el resto de los sub-grupos estudiados (25,69%). En el sub-grupo top mundial 9, destaca la presencia de asignaturas relacionadas con la economía del comportamiento y experimental (77,78%), así como de gestión estratégica (66,67%), resultando esta última también con mayor frecuencia relativa para el sub-grupo de las mejores 3 de Latinoamérica, mientras en el sub-grupo Venezuela, destaca la profundización en microeconomía general. Por tanto, el estudio realizado permite concluir que, si bien el eje microeconómico es parte fundamental de la carrera de economía para todas las instituciones consideradas, resulta más evidente en el caso de las universidades venezolanas, mientras que a nivel internacional este eje tiene menor peso relativo y se evidencia una inclinación por asignaturas relacionadas al área del estudio del comportamiento, a nivel general y estratégico.
Tecnologías de la información y comunicación (TIC) en la enseñanza de la matemática: reflexiones teóricas
Authors: Santillán-Espinoza Diego Iván , Allauca-Pancho Fabián Roberto , Inca-Falconí Alex Fabián , Santillán-Lima Juan Carlos
Published: September 2023

Las Tecnologías de la información y comunicación TIC’s, han transformado nuestra realidad de manera acelerada, estas se han convertido en un recurso de gran alcance y versatilidad en todas las áreas y campos de la sociedad, dentro de los cuales se destaca las ciencias de la educación, puesto que, son unas herramientas y recursos imprescindibles para dirigir, orientar y desarrollar el proceso didáctico en todas las disciplinas académicas, desatacándose las matemáticas, caracterizada por ser una disciplina compleja para abordar estrategias de enseñanza que logren el éxito en el logro de los aprendizajes y por  su vital importancia en la formación integral y especializada según el diseño curricular de las carreras universitarias. El objetivo de esta investigación es el de interpretar las reflexiones teóricas derivadas de la implementación de las tecnologías de la información y la comunicación, denominadas comúnmente TIC’s en el proceso de enseñanza y aprendizaje de la matemática. Se aplicó un diseño de investigación documental, utilizando como fuentes de información 35 documentos científicos seleccionados a través de los motores de búsqueda de internet y sitios web de publicaciones científicas, dentro de los cuales se destacan, google académico, Scielo y Dialnet. Las conclusiones obtenidas señalan el gran impacto positivo de las TIC’s en el proceso de enseñanza y aprendizaje de la matemática, el desafío que representa para  los docentes y estudiantes la formación en las nuevas tecnologías y la formación permanente de los docentes en la práctica pedagógica para lograr propuestas innovadoras y efectivas en  la implementación de una diversidad de recursos digitales que ofrecen las TIC’s, por consiguiente,  es primordial lograr un cambio de paradigma que incentive la cooperación y colaboración para concretar estos cambios caracterizados por una resistencia sociocultural histórica.
Liderazgo transformacional como modelo para mejorar el clima laboral docente
Authors: Molina-Vicuña Graciela del Pilar
Published: September 2023

En este artículo se desarrollan parte de los hallazgos de una investigación cuyo objetivo general fue la caracterización, desde la perspectiva teórica, del liderazgo transformacional como modelo para mejorar el clima laboral en las instituciones educativas. Se parte de la certeza que el contexto de la pospandemia, tiene unas características particulares que pueden terminar por trastocar el manejo de la calidad educativa y la dinámica pedagógica en general. En ese sentido, se considera prioritario, construir las directrices que permita la consolidación del liderazgo transformacional como una herramienta fundamental en la creación de las condiciones adecuadas a un clima laboral docente armónico y productivo. Metodológicamente la investigación tiene un diseño teórico-documental, por lo que se toman como referencias algunos estudios internacionales y nacionales, para articular algunas líneas gruesas de lo que se pueden considerar, dimensiones y componentes propios de un liderazgo transformacional eficaz y exitoso en las instituciones de educación, el tipo de investigación es básica y el diseño no experimental descriptivo-propositivo porque la idea es generar un esquema general del contenido de un modelo de liderazgo transformacional para el mejoramiento del clima laboral. Así mismo, teóricamente, se analizan los aportes de autores clásicos que plantean esquemas o categorías importantes a la hora de proponer estrategias para implementar un liderazgo de tipo transformacional. Entre los resultados destaca la descripción contextual de las dimensiones y componentes que se deben tomar en cuenta para asociar liderazgo transformacional y clima laboral.
Síndrome de burnout en profesores universitarios de latinoamérica: una revisión de literatura
Authors: Alvarado-Peña Lisandro José , Amaya Sauceda Rosas Amadeo , Muñoz Castorena Rodolfo Valentín , Reyes Alvarado Sebastián , Ramos Farroñán Emma , Sansores-Guerrero Edgar Alfonso
Published: September 2023

Desde 2019 el síndrome de burnout, ha sido incluido en la “Clasificación Internacional de Enfermedades” (ICD-11), por parte de la Organización Mundial de la Salud (OMS); siendo catalogado como un fenómeno tridimensional que incide en la salud y calidad de vida de muchos profesionales, entre estos los docentes universitarios quienes no escapan de este padecimiento. El objetivo de este estudio fue verificar la presencia del síndrome de burnout en profesores universitarios en Latinoamérica. La metodología empleada fue la búsqueda y revisión de literatura, de estudios disponibles sobre el burnout en profesores universitarios, en algunos países de Latinoamérica, en el período comprendido desde 2012 hasta 2022, publicados en bases de datos de factor de impacto, y portales de importancia para el ámbito académico y científico universitario. Este es un estudio de tipo descriptivo, donde se mencionaron aspectos relevantes y sobresalientes relacionados con la temática de interés a partir de los documentos seleccionados. Los resultados indican la presencia o prevalencia del síndrome de burnout en docentes universitarios de Latinoamérica, según los porcentajes obtenidos en cada dimensión del burnout: Agotamiento emocional (AE); Despersonalización (DE) y Baja Realización Personal (RP); encontrándose relaciones entre el burnout y aspectos laborales, organizacionales, sociodemográficos y situaciones personales particulares como la edad, el sexo, tener hijos y los años de experiencia laboral. Se concluyó que debido al aumento del síndrome de burnout en docentes universitarios latinoamericanos, es importante proveer del apoyo psicológico, social y familiar; además de la estructuración de programas preventivos, diagnóstico e intervención que ofrezcan estrategias y habilidades personales de afrontamiento del estrés.
Pandemia, plataformas digitales y competencias tecno-administrativas entre los emprendedores restauranteros
Authors: Santos Corral Maria Josefa , Jasso López Lucía Carmina
Published: September 2023

El propósito de este trabajo es mostrar el papel de las plataformas digitales en la formación de capacidades tecno-administrativas entre los empresarios restauranteros, específicamente los que operan en América Latina y particularmente en México. A partir de la revisión de literatura y de entrevistas semiestructuradas a restauranteros mexicanos, se documenta la manera en que estas tecnologías comenzaron por ofrecer una “tabla de salvación” ante el confinamiento al que obligó la pandemia, constituyéndose en un mediador significativo que permitió no solo el acercamiento entre consumidores y clientes y hasta el crecimiento de los establecimientos, sino también, en una aproximación desde lo local a las tecnologías globales que forman parte de lo que se conoce como Industria 4.0, cuya operación demanda el desarrollo de capacidades tecnológicas y administrativas distintas a las que habían tenido muchos empresarios del sector.
Moving from Generation to Generation: Latin American Family Business is a Tamara-Land
Authors: M. Pelly R. Duncan , Millan Claudia , Millan Abraham
Published: September 2023

This article indagates the story of three generations of Latino entrepreneurs –grandmother, mother, and son—with family businesses that flank both sides of the U.S.-Mexico border. Across generations the "Tamara-Land" effect exists. To disambiguate, the narratives of these family businesses changed across generations, morphing from stories of effectuation to ones of causation. The grandmother living in Mexico embodied effectuation by "falling into" her entrepreneurial opportunities. Her story is one of necessity entrepreneurship because other opportunities were unavailable to her. The daughter in the story exhibits a mix of planning and improvisation. Although the daughter had a latent desire to pursue entrepreneurship, it became a viable option to earn a livelihood that reflected her intellectual interests. In the final series of vignettes, we find the grandson pursuing entrepreneurship in order to achieve his dream. Across generations, the entrepreneurs shift from characters in a grand narrative to becoming authors of their own story. This paper will be of interest to researchers of family business, particularly in Latin American and Latino Entrepreneurship, students of entrepreneurship, and scholars of storytelling.
A COVID-19 E AS COMPLICAÇÕES MATERNO FETAIS: UMA REVISÃO DE LITERATURA
Authors: Freire Marina Dantas , Rocha Alana Anjos da , Souza Fabrícia Teixeira de , Lima Thayná Bezerra , Guimarães Adriana de Oliveira
Published: September 2023

O SARS-CoV-2 é um vírus de cadeia simples, responsável por causar uma doença infecciosa com alto poder de transmissão, podendo afetar múltiplos órgãos e sistemas. Diante do cenário de pandemia, grupos vulneráveis à infecção passaram a ser identificados a exemplo das gestantes, devido às suas alterações imunológicas e fisiológicas, apresentando uma maior susceptibilidade à manifestação da doença na sua forma mais grave e um maior risco de complicações obstétricas e perinatais. Para este estudo foi utilizado uma revisão integrativa da literatura com busca nas plataformas PubMed®, BIREME, LILACS, SciELO, e IBECS, de artigos publicados entre 2019 a 2023, com os descritores "SARS-COV-2”; “COVID-19”; "PREGNANT"; “FETAL”; “COMPLICATIONS” e operador booleano “AND”. Foram encontrados 187 artigos, e 25 publicações constituíram a amostra final, sendo desconsiderados artigos fora do período proposto ou que não apresentavam correlação direta com o tema. Segundo estudos abordados, grande parte das gestantes infectadas pelo SARS-CoV-2 apresentaram um quadro leve, apesar de também ter sido evidenciada a necessidade de suporte intensivo, de maneira a poder ocasionar desfechos como parto prematuro, cesarianas, distúrbios hipertensivos, complicações tromboembólicas, menor peso ao nascer e ruptura prematura de membranas. Foi encontrado receptores fetais tanto no tecido placentário quanto nos tecidos fetais, sugerindo a possível ocorrência de transmissão vertical, e possíveis prejuízos no desenvolvimento fetal. Conclui-se, portanto, que a infecção pela COVID-19 pode acarretar vários prejuízos no binômio materno-fetal, apesar de seu impacto ainda não estar completamente esclarecido na literatura. Em vista disso, a realização de novos estudos se torna necessária, de forma a poder avaliar melhor essas consequências e o real comprometimento a longo prazo.
Urgências e Emergências Bucais: Desafios no Atendimento de Pacientes Oncológicos na Rede Pública de Saúde
Authors: Santos Marcos Antônio Lima dos , Rocha Rachel Leal Marcelino da , Paulo Alana Cândido , Araújo Aline Prado Langame , Barbosa Milton Jorge Lobo , Oliveira Gerson Pedroso de , Pereira Victor Guilherme , Oliveira Brenda Maria da Cruz de , Carvalho Laura Stefanny Gomes de , Vasconcelos Natália Marques , Capelario Elenice de Fatima Souza , Nunes Jordson Kaique Oliveira
Published: September 2023

Este artigo tem como objetivo identificar as principais situações de urgência e emergência bucais que afetam pacientes com câncer, ao mesmo tempo em que busca compreender os desafios relacionados à prestação de assistência a esses pacientes na rede pública de saúde. Este estudo constitui uma revisão integrativa da literatura que foi realizada mediante buscas nas bases de dados LILACS e SCIELO, com o suporte do Google Acadêmico, no período entre agosto e setembro de 2023. Os termos-chave utilizados, obtidos dos Descritores em Ciências da Saúde (DeCS), abrangeram Saúde Pública, oncologia, emergência, urgência, dentista e câncer. No processo de seleção dos estudos, foram aplicados critérios de inclusão que consideraram publicações com datas entre 2017 e 2023, redigidas em língua portuguesa e de livre acesso. Como critério de exclusão, procedeu-se à eliminação de estudos duplicados entre as bases de dados, resumos, trabalhos de conclusão de curso e artigos que não estivessem alinhados com o escopo da pesquisa. Após a condução das buscas e a seleção rigorosa, apenas 10 artigos foram eleitos para compor a amostra final. Os artigos demonstraram que o enfrentamento das urgências e emergências bucais em pacientes oncológicos na rede pública de saúde representa um desafio multifacetado e crítico. Esses pacientes frequentemente enfrentam complicações bucais decorrentes da doença ou de seus tratamentos, o que pode impactar significativamente sua qualidade de vida. Concluiu-se que, entre as principais urgências e emergências bucais que podem surgir estão as mucosites, infecções orais, sangramentos e dor intensa. No entanto, o maior desafio no atendimento público a esses pacientes reside na falta de recursos adequados, capacitação da equipe de saúde e coordenação interdisciplinar.
Theoretical framework for analyzing the dynamics of the stock market and market capitalization of corporate agricultural enterprises
Authors: SUSLIKOV Andrii
Published: September 2023

Analyzing and forecasting financial and stock markets is a strategic goal for investors, analysts, traders, underwriters, top managers of agricultural companies, and other stakeholders to manage the efficiency of both corporate and individual activities. At the same time, methods of modeling market capitalization dynamics differ depending on which institutional group of investors use them, which often leads to contradictory results. In this context, the problem arises of systematizing and improving the theoretical framework for analyzing corporate agricultural enterprises' market capitalization dynamics. The study aims to generalize and systematize the theoretical framework for analyzing the dynamics of the stock market and market capitalization of corporate agricultural enterprises. The study used the following methods: systematization, generalization, monographic analysis, and synthesis. The content of the theories of random expectations, efficient stock market, reflexivity in the stock market, chaos and fractal geometry of price movements, psychological moods of investors, and catastrophes have been summarized. It has been argued and proved that all theories and methodological approaches to analyzing stock market dynamics and market capitalization of corporate agricultural enterprises are dialectically related, are in constant development, and are ultimately aimed at identifying and explaining the patterns of the phenomena and processes under study. It has been shown that quantitative analysis is a methodological superstructure to qualitative analysis aimed at substantiating the identified laws and regularities in the dynamics of price quotations, stock market development, the behavior of investors and stock traders, and market capitalization of corporate issuers. These patterns subsequently become the basis for refining the theoretical and methodological foundations for analyzing the dynamics of the stock market and market capitalization of enterprises, as well as for launching adaptive training and retraining algorithms for neural networks and artificial intelligence systems.
Keywords: stock market, market capitalization, equity, behavioural finance, finance theory, corporate agricultural enterprise.
KEEFEKTIFAN MEDIA PETA DARA PADA TEMA KEPEMIMPINAN KELAS VI SEKOLAH DASAR
Authors: Ainun Rosidah  , Iin Purnamasari  , Harto Nuroso  , Suwarni
Published: September 2023

ABSTRAK

 

Tujuan penelitian ini adalah untuk mengetahui efektivitas penggunaan media PETA DARA untuk meningkatkan hasil belajar peserta didik. Media PETA DARA merupakan media pembelajaran yang menggunakan permainan sebagai media untuk meningkatkan hasil belajar. Hasil belajar adalah ukuran atau tingkatan keberhasilan seseorang dalam mempelajari sesuatu. Penelitian ini menggunakan quasi experiment dengan desain one group pre-test dan post-test. Subjek dalam penelitian ini adalah peserta didik kelas VI SDN Sarirejo Semarang. Media PETA DARA digunakan pada tema kepemimpinan pada materi nilai-nilai keadilan dan ciri- ciri pubertas di kelas VI yang mengalami ketidak tuntasan pada hasil belajar kognitif. Hasil penelitian menunjukan bahwa penggunaan media PETA DARA dapat meningkatkan keefektivitasan pembelajaran pada materi nilai-nilai keadilan dan ciri- ciri pubertas. Hasil perhitungan menunjukan bahwa Sig Paired Samples Statistics 0,020 dan nilai korelasi 0,377. Sedangkan hasil Paired Samples Test Sig 2-tailed = 0,000. Maka ini menunjukkan bahwa penggunaan media PETA DARA berpengaruh secara signifikan terhadap proses pembelajaran.

Kata kunci: media PETA DARA, hasil belajar, kepemimpinan
Drug-induced cholestasis: causative agents and challenges in diagnosis and management
Authors: Pinazo-Bandera Jose M. , Toro-Ortiz Juan Pedro , Andrade Raúl J. , García-Cortés Miren
Published: September 2023

Drug-induced liver injury (DILI) is an adverse reaction to drugs and other xenobiotics that can have serious consequences and jeopardise progress in pharmacological therapy. While DILI is predominantly hepatocellular, a non-negligible percentage of patients who present with cholestatic damage. Mixed damage is typically lumped together with cholestatic damage in the literature. Drug-induced cholestasis is often caused by the use of some non-steroidal anti-inflammatory drugs (NSAIDs), antibiotics (i.e., amoxicillin-clavulanic acid), statins, and anabolic agents, among others. Drug-associated cholestasis tends to have a more chronic course and mostly affects older population. There is also a genetic predisposition to toxic cholestasis caused by some drugs (amoxicillin-clavulanic acid, statins, etc.). Recently, anatomical alterations of the biliary tract induced by drugs (especially immunotherapy drugs) have been described. Bile duct injury is one of the histopathological findings that have prognostic significance in DILI. A correct differential diagnosis with other causes of cholestasis is mandatory to reach an accurate diagnosis. Ursodexycholic acid, corticosteroids, and replacement therapies have been used as a therapeutic arsenal, although more evidence is needed to establish them as a routine therapeutic management in clinical practice. The breakthrough and validation of biomarkers of cholestasis and bile duct injury is an urgent need for drug development and post-marketing phase.
Some Questions of Computational Models in Continuum Mechanics
Authors: Prozorova Evelina
Published: September 2023

The aim of the work is to study some issues of establishing the generality of experimental and numerical methods, the possibilities of describing a continuous medium using discrete representations of computational mathematics, the influence of the choice of basis functions on calculation errors. The previously proposed model of continuum mechanics is discussed, including the general action of forces and distributed moments of forces, as well as the role of boundary conditions in Hamiltonian mechanics, especially in frequently used computational solutions to problems in mechanics. The Runge-Kutta difference scheme for a system of partial differential equations is analyzed. Examples are given.
Comunidades en torno al Metaverso en X/Twitter
Authors: Bonales Daimiel Gema , Liberal Ormaechea Sheila , Ávila Muñoz Raquel
Published: September 2023

La creciente popularidad del metaverso ligado a la industria del entretenimiento ha llevado a la aparición de influencers que han logrado un aumento significativo en su base de seguidores en X/Twitter. El presente estudio aplica una metodología de investigación mixta sobre las interacciones en X/Twitter. La principal conclusión es que está creciendo muy rápidamente, principalmente en comunidades específicas de usuarios con conocimientos avanzados y muy especializados, como los entusiastas de las criptomonedas o los aficionados a los juegos en línea. Para que el metaverso se convierta en un fenómeno de masas, deberá simplificar su experiencia de uso.
Distinguishing between straight and curved sounds: Auditory shape in pitch, loudness, and tempo gestures
Authors: Lembke Sven-Amin
Published: September 2023

Sound-based trajectories or sound gestures draw links to spatiokinetic processes. For instance, a gliding, decreasing pitch conveys an analogous downward motion or fall. Whereas the gesture’s pitch orientation and range convey its meaning and magnitude, respectively, the way in which pitch changes over time can be conceived of as gesture shape, which to date has rarely been studied in isolation. This article reports on an experiment that studied the perception of shape in uni-directional pitch, loudness, and tempo gestures, each assessed for four physical scalings. Gestures could increase or decrease over time and comprised different frequency and sound level ranges, durations, and different scaling contexts. Using a crossmodal-matching task, participants could reliably distinguish between pitch and loudness gestures and relate them to analogous visual line segments. Scalings based on equivalent-rectangular bandwidth (ERB) rate for pitch and raw signal amplitude for loudness were matched closest to a straight line, whereas other scalings led to perceptions of exponential or logarithmic curvatures. The investigated tempo gestures, by contrast, did not yield reliable differences. The reliable, robust perception of gesture shape for pitch and loudness has implications on various sound-design applications, especially those cases that rely on crossmodal mappings, e.g., visual analysis or control interfaces like audio waveforms or spectrograms. Given its perceptual relevance, auditory shape appears to be an integral part of sound gestures, while illustrating how crossmodal correspondences can underpin auditory perception.
DIFFUSING SUSTAINABILITY
Authors: Jacobsen Joseph J.
Published: September 2023

Accelerating the adoption of more sustainable solutions is at the crux of avoiding a complete climate catastrophe. Every nation, industry, business, and individual can improve their sustainability performance. The issue of willingness, perceived and real costs or not knowing how to start may be causal. In this article, methods are given about how adopt sustainability performance improvements impacting respective aggregated adoptions. The objectives surrounding sustainability can be boiled down to three general improvement outcomes: economic/financial, social, and ecological. This article focuses on ecological improvements with emphasis on the human and financial cost avoidance of catastrophic climate change. These methods can be used for social and financial performance by including new data.
BUSINESS MODERNIZATION AND THE ROLE OF BUSINESS FINANCE IN THIS PROCESS
Authors: Zhytkevych Olena V. , Klymenko Mariia O. , Liehkova Liliia S.
Published: September 2023

This article is primarily concerned with exploring the concept of business modernization and its potential incorporation into an organization through the utilization of business finance principles. While previous studies have concentrated on financial indicators, the authors recommend a more extensive approach that regards business modernization as an investment choice, appraising both risks and potential gains. The writers advocate for a thorough evaluation of diverse approaches to business modernization in order to ascertain their respective benefits and drawbacks for future implementation. The authors conducted an analysis of the most popular and modern strategies for business modernization in order to identify their corresponding advantages and disadvantages for organizations and their operations in markets. In addition, they proposed to implement one of the analyzed methods for Apple Inc. For this purpose, the review of financial statements with the DuPont analysis for the company should be conducted. The outcomes of the analysis showed its investment potential and current financial position in the market and after that the authors proposed an appropriate business modernization strategy for the company. Although the strategy was evaluated in terms of potential return and risk in the paper. It is crucial to recognize that the conceptual and methodological structure of this research derives from numerous sources encompassing statistical information, working papers on marketing and management by international scholars, as well as literature concerning business modernization processes and financial aspects. Through the utilization of a multifaceted methodology, it is expected that this investigation will contribute to an enhanced understanding and deeper insights into the procedures involved in modernizing businesses as well as their financial implications.
Algılanan Fiziksel ve Bilişsel Yorgunluk Ölçeği’nin Geliştirilmesi (AFBYÖ): Geçerlik ve Güvenirlik Çalışması
Authors: TEKKURŞUN DEMİR Gönül , CİCİOĞLU Halil İbrahim , YARAYAN Yunus Emre
Published: September 2023

Araştırmada sporda algılanan fiziksel ve bilişsel yorgunluk ölçeğinin geçerli ve güvenilir şekilde geliştirilmesi amaçlanmıştır. Mevcut araştırmada nicel modelden yararlanılmıştır. Araştırmaya farklı spor branşlarından (tenis, badminton, yüzme, atletizm, kayak, kızak, kayaklı koşu, boks, jimnastik, hokey, eskrim, güreş, halter, judo, kano, atıcılık, okçuluk, tekvando, voleybol, hentbol, futbol, basketbol, masa tenisi, amerikan futbolu) 630 sporcu dahil edilmiştir. Yapılan literatür taraması doğrultusunda taslak madde havuzu oluşturulmuştur. Taslak madde havuzundaki maddelerin sınanması, kapsam geçerliğinin sağlanması için, taslak madde havuzu toplam 4 uzman görüşüne sunulmuş ve uzmanların önerdiği düzeltme ardından pilot uygulama yapılmıştır. Daha sonra ölçek katılımcılara uygulanmış, elde edilen verilerin yapı geçerliği öncelikle Açımlayıcı Faktör Analizi ile incelenmiştir. Açımlayıcı Faktör Analizi’nin desteklenmesi için daha sonra ölçeğin yapısı Doğrulayıcı Faktör Analizi ile sınanmıştır. Doğrulayıcı Faktör Analizi sonuçlarında; elde edilen uyum indeksi değerleri, mükemmel ve kabul edilebilir aralıkta bulunmuştur. Ardından verilerin geçerliği ve güvenirliğinin saptanması için madde analizi ve güvenirlik analizleri yapılmıştır. Madde analizlerine göre % 27’lik alt-üst grup puan farkları anlamlı bulunmuştur. Yapılan analizler sonucunda sporda algılanan fiziksel ve bilişsel yorgunluk ölçeğinin geçerli ve güvenilir bir ölçek olduğu tespit edilmiştir. Ayrıca sporda algılanan fiziksel ve bilişsel yorgunluk ölçeğinin yapılan test tekrar test analizi sonucunda zamana karşı dayanıklı olduğu da tespit edilmiştir.
Statistical indicators of the change in the amplitude of the EEG in the brain due to the effect of anxiety caused by the exam process in 17-year-old choleric students
Authors: Rustamova Tukezban
Published: September 2023

Psycho-emotional factors play the main role among the factors that have a negative impact on health at a young age. Students have the concept of "exam stress", which occurs at various intervals before the exam. This process occurs over several days to several weeks, when anxiety develops during the post-exam exam. In this regard, the main goal of his work was to reveal the age characteristics of the changes in the bioelectrical activity of the brain, depending on the temperament type of the higher nervous activity, due to the effect of the emotional tension created in the examination process. The practical health of the participants and their voluntary participation in the research were considered important conditions. In order to study the impact of the exam process on emotional stress, students were divided into three groups: The first group included students who were on regular school days 2 months before the exam, the second group 30 minutes before the exam process, and the third group after the exam and 30 minutes after the exam process. These results show that the examination process has a different effect on the amplitude of EEG waves in the left and right frontal lobes of the brain before and after the examination. Therefore, both examination processes have both enhancing and depressing effects on the amplitude of EEG waves. It is very likely that at this age, it shows that the process of adaptation to the first exam process in students is not fully formed.
TU Tau B: The Peculiar “Eclipse” of a Possible Proto-barium Giant
Authors: Gray Richard O. , Corbally Christopher J. , Briley Michael M. , McKay Adam , Sims Forrest , Boyd David , Boussin Christophe , McGahee Courtney E. , Buchheim Robert , Walker Gary , Iadevaia David , Fernandez David Cejudo , Lemay Damien , Martin Jack , Grubb Jim , Stiewing Albert , Daglen Joseph , Shank Keith , Andrews Sydney , Barnhardt Nick , Clark Rebekah , Corman Hunter , Gomes Sabina , Jonnalagadda Agastya , McDaries Theo , Mills Ava , Newsom Will , Slate Andrew , Watts Michael
Published: September 2023

TU Tau (=HD 38218 = HIP 27135) is a binary system consisting of a C-N carbon star primary and an A-type secondary. We report on new photometry and spectroscopy which tracked the recent disappearance of the A-star secondary. The dimming of the A star was gradual and irregular, with one or more brief brightenings, implying the presence of nonhomogeneities in the carbon star outflow. We also present evidence that the A star is actively accreting s-process enriched material from the carbon star and suggest that it will therefore eventually evolve into a Barium giant. This is an important system as well because the A-type star can serve as a probe of the outer atmosphere of the carbon star.
Crossing the Rubicon of Reionization with z ∼ 5 QSOs
Authors: Grazian Andrea , Boutsia Konstantina , Giallongo Emanuele , Cristiani Stefano , Fontanot Fabio , Bischetti Manuela , Bongiorno Angela , Calderone Giorgio , Cupani Guido , D’Odorico Valentina , Feruglio Chiara , Fiore Fabrizio , Guarneri Francesco , Porru Matteo , Saccheo Ivano
Published: September 2023

One of the key open questions in cosmology is the nature of sources that completed cosmological hydrogen reionization at z ∼ 5.2. High-z primeval galaxies have been long considered the main drivers of reionization, with a minor role played by high-z active galactic nuclei (AGN). However, in order to confirm this scenario, it is fundamental to measure the photoionization rate produced by active SMBHs close to the Epoch of Reionization. Given the pivotal role played by spectroscopically complete observations of high-z QSOs, in this paper we present the first results of the RUBICON (Reionizing the Universe with Bright Cosmological Nuclei) survey. It consists of a color-selected sample of bona fide z ∼ 5 QSO candidates from the Hyper Suprime-Cam Subaru Strategic Survey. Our QSO candidates have been validated both by photometric redshifts based on spectral energy distribution fitting and by spectroscopic redshifts, confirming that they lie at 4.5 < z
spec < 5.2. A relatively high space density of QSOs (Φ ∼ 1.4 × 10−8 c Mpc−3) is thus confirmed at z ∼ 5 and M
1450 ∼ −27, consistent with a pure density evolution of the AGN luminosity function from z = 4 to z = 5, with a mild density evolution rate of 0.25 dex. This indicates that AGN could play a nonnegligible role in cosmic reionization. The Rubicon of reionization has been crossed.
Impact of Pycnonuclear Fusion Uncertainties on the Cooling of Accreting Neutron Star Crusts
Authors: Jain R. , Brown E. F. , Schatz H. , Afanasjev A. V. , Beard M. , Gasques L. R. , Gupta S. S. , Hitt G. W. , Hix W. R. , Lau R. , Möller P. , Ong W. J. , Wiescher M. , Xu Y.
Published: September 2023

The observation of X-rays during quiescence from transiently accreting neutron stars provides unique clues about the nature of dense matter. This, however, requires extensive modeling of the crusts and matching the results to observations. The pycnonuclear fusion reaction rates implemented in these models are theoretically calculated by extending phenomenological expressions and have large uncertainties spanning many orders of magnitude. We present the first sensitivity studies of these pycnonuclear fusion reactions in realistic network calculations. We also couple the reaction network with the thermal evolution code dStar to further study their impact on the neutron star cooling curves in quiescence. Varying the pycnonuclear fusion reaction rates alters the depth at which nuclear heat is deposited although the total heating remains constant. The enhancement of the pycnonuclear fusion reaction rates leads to an overall shallower deposition of nuclear heat. The impurity factors are also altered depending on the type of ashes deposited on the crust. These total changes correspond to a variation of up to 9 eV in the modeled cooling curves. While this is not sufficient to explain the shallow heat source, it is comparable to the observational uncertainties and can still be important for modeling the neutron star crust.
The Formation of Star-forming Disks in the TNG50 Simulation
Authors: Wang Enci , Lilly Simon J.
Published: September 2023

We investigate the disk formation process in the TNG50 simulation, examining the profiles of SFR surface density (ΣSFR), gas inflow and outflow, and the evolution of the angular momentum of inflowing gas particles. The TNG50 galaxies tend to have larger star-forming disks, and they also show larger deviations from exponential profiles in ΣSFR when compared to real galaxies in the Mapping Nearby Galaxies at APO survey. The stellar surface density of TNG50 galaxies show good exponential profiles, which is found to be the result of strong radial migration of stars over time. However, this strong radial migration of stars in the simulation produces flatter age profiles in TNG50 disks compared to observed galaxies. The star formation in the simulated galaxies is sustained by a net gas inflow, and this gas inflow is the primary driver for the cosmic evolution of star formation, as expected from simple gas-regulator models of galaxies. There is no evidence for any significant loss of angular momentum for the gas particles after they are accreted on to the galaxy, which may account for the large disk sizes in the TNG50 simulation. Adding viscous processes to the disks, such as the magnetic stresses from magnetorotational instability proposed by Wang & Lilly, will likely reduce the sizes of the simulated disks and the tension with the sizes of real galaxies, and this may produce more realistic exponential profiles.