bluuebunny/crossref_metadata_2025 huggingface dataset:
MODELLING OF A THREE-DISPERSED SUSPENSION FILTRATION
Authors: Safina Galina
Published: June 2023

The injection method of soil stabilization is one of the methods to improve the soil base during the road construction. This method consists in the introduction of special compounds into the ground with the help of special equipment. Such compositions, as a rule, are solutions of polymers or cement, which harden, forming a solid base. The advantages of the injection method of soil stabilization for roads include rapid completion of work, minimal environmental impact, the possibility of application in difficult geological conditions, as well as strengthening the soil base at great depth. Injection solutions penetrate into microcracks and micropores of soils, forming a deposition. The study of liquid filtration in a porous soil system is of great practical importance. The paper considers the filtration of liquid in a porous medium with three types of particles. In the considered problem, each of the three types of suspension particles is characterized by its linear filtration function. It determines the size-exclusion particle capture mechanism, in which particles whose diameter exceeds the size of the pores get stuck in them, the rest pass through them unhindered. Numerical solutions are obtained for the concentrations of suspended particles of three types, as well as the total deposition. Depending on the initial parameters of the problem, the concentrations of suspended particles are either monotonic functions or non-monotonic, reaching the maximum value. In this paper, asymptotic solutions are constructed for the concentrations of suspended and retained particles near the concentration front, which are compared with numerical ones. The solution is obtained at infinity using a traveling wave.
ACOUSTIC EMISSION-BASED DAMAGE DETECTION IN STEEL FRAMED STRUCTURE- A REVIEW
Authors: Biswas Anupam Kumar , Aloke Kumar Datta  , Pijush Topdar  , Sanjay Sengupta
Published: June 2023

Steel structures are commonly utilized in vast areas in industries, and also now a days they are used in residential settings as well. Structures made of steel is a better alternative as their constructions have high strength, light weight and quick compared to other construction materials. Steel structure degradation is frequently related to an engineering system's underperformance and leads to collapse. Therefore, it is essential to identify the problem and take remedial steps to make sure that structures function as intended throughout their design lives. Among the best non-destructive assessment methods for finding problems is acoustic emission (AE). The current study evaluates the available literature on this method in a few major areas and discusses historical advances in each category. The pros and cons of each approach are discussed, and future study directions are suggested. This review examines the fundamental Acoustic Emission techniques and contemporary research to identify damage in different types of steel structures using various localization approaches. This research aims to find the ideal placement for a real-time sensor to detect deterioration in a steel-framed construction. Finally, the artificial intelligence techniques used to identify deterioration in the steel frame construction are discussed.
NUMERICAL STUDY OF ICE AND CHANNEL PROCESSES ON THE BRIDGE SUPPORTS ACROSS THE KUIBYSHEV RESERVOIR (KAZAN)
Authors: Belikov Vitaly , Borisova Natalya , Glotko Anna , Kozlov Dmitry
Published: June 2023

Numerical hydrodynamic modeling of water movement at discharges of 1% and 10% supply is considered in order to study the effect of ice effects and bottom deformations on the bridge supports across the reservoir of the Kuibyshev hydroelectric complex, and to predict the general erosion of the channel. The calculations use two-dimensional shallow water and sediment transport equations implemented in the STREAM 2D CUDA software package.
Sustentabilidade, justiça ecológica e bem viver: diálogos para a salvaguarda da sociobiodiversidade no contexto brasileiro
Authors: Alcantarino Jardini Kunkel Ana Carolina
Published: June 2023

Em um contexto de uma sociedade cada vez mais complexa, com interesses internos que, por vezes, são colidentes, surge o questionamento a respeito de quais valores devem ser objeto de guarida estatal para a preservação da vida e como estes serão amparados e viabilizados. Assim, o cenário de policrise a que a humanidade está atualmente exposta reclama ao direito um olhar diferenciado sobre a vida na Terra, de modo que é urgente nos questionar se o modo de vida da sociedade tem sido sustentável. Analisando, em um primeiro momento, o pensamento moderno ocidental, a crise ambiental e o desenvolvimento sustentável, esse estudo avança para cenários de injustiça e no conteúdo da justiça ecológica, bem como se estudam os riscos que surgem do denominado agrohidronegócio, com ênfase para a questão dos agrotóxicos, visto que os cenários de injustiça ambiental e de degradação ecológica têm se agravado cada dia mais. Por fim, busca-se a sustentabilidade a partir das epistemologias do sul, investigando o bem viver e os direitos da natureza, analisando sua relação com a sociobiodiversidade para, ao final, estudar a transversalidade do bem ambiental na Constituição Federal.
Taṭwīr Ta`līm al-Imlā’ al-Manqūl Bi Rabṭ al-Ḥurūf `Alā Asās Madkhal Learning Together Wa Ṭarīqah Scramble Bi MTsN 4 Aceh Selatan
Authors: Liyudza Rahayu  , Buhori Muslim  , Badruzzaman Badruzzaman
Published: June 2023

Based on observations in class one (1) MTsN 4 Aceh Selatan. The researcher found that some students had problems, they had difficulty writing. As well as the difficulties faced by students regarding spelling, use of punctuation marks, choosing vocabulary, and constructing sentences. To overcome this problem, the researchers developed learning imla' manqul with rabthil letters based on the Learning Together approach and the Scramble method at MTsN 4 Aceh Selatan. The purpose of this study was to identify student responses in the development of learning imla' manqul with rabthil letters based on the Learning Together approach and the Scramble method at MTsN 4 Aceh Selatan. The research method used by researchers is a scientific research and development method using the One Group Pre-Test and Post-Test Design. To collect data, researchers use tests and questionnaires. The results of this study are learning imla' manqul with rabthil letters based on the Learning Together approach and the Scramble method is effective at MTsN 4 Aceh Selatan. Based on the results (t-test), which is 14.67, it is greater than the results (t-table), which is 2.06. Results of student respondents on the development of learning imla' manqul with rabthil letters based on the Learning Together approach and the Scramble method at MTsN 4 Aceh Selatan. with a score of 94%, with a very good.
Análisis bibliométrico de desarrollo sostenible en destinos turísticos del Caribe
mexicano: énfasis caso Cozumel
Authors: Catzín Tamayo Abril Hiored , Frausto Martínez Oscar
Published: June 2023

La actividad turística depende en gran medida del patrimonio natural, por lo cual
se convierte en una amenaza para el medio ambiente. En tal sentido, las ciencias
desempeñan un papel importante en la búsqueda de mejores prácticas y soluciones para
desarrollar destinos turísticos que contribuyan a la protección de la naturaleza a
través de los Objetivos de Desarrollo Sostenible (ODS). El presente estudio tuvo como
objetivo analizar la producción de la comunidad científica correspondiente a la base de
datos Google Scholar relacionada con los ODS en el Caribe mexicano, específicamente en
la isla de Cozumel a partir de la implementación de la Agenda 2030 en el periodo 2015 a
2022. Se ha utilizado la teoría de grafos para crear mapas de red, lo que permite
calcular indicadores para obtener el nodo más influyente. Los indicadores bibliométricos
y los softwares Harzing Publish or Perish y VOSViewer permitieron el mapeo de la
información relevante y tendencias. Las principales líneas de investigación están
relacionadas con la necesidad de gestionar destinos turísticos con la participación de
la población local e integran los tres pilares de la sostenibilidad: social, ambiental y
económico, esperando así el crecimiento paulatino de trabajos en esta área.
Toma de decisiones en la adquisición de un biodigestor municipal para tratar
residuos orgánicos en el destino turístico Cozumel
Authors: León-López Armando Alberto , González Damián Alfonso , Ken Rodríguez Crucita , Vargas del Río David
Published: June 2023

El objetivo es explicar los aspectos relacionados con el proceso de toma de
decisiones por parte de actores involucrados en la adquisición de un biodigestor a
escala municipal para tratar residuos orgánicos generados en actividades turísticas de
Cozumel, con encuadre en el marco conceptual de la economía circular. El estudio de caso
se desarrolló en dos fases. En la primera, mediante la revisión de documentos técnicos,
gubernamentales y diarios locales, se conceptualizó la gestión de residuos sólidos en el
destino turístico Cozumel. Para la segunda, se realizaron entrevistas a informantes
clave y se hizo un análisis de contenido mediado por software. Como principales
resultados se obtuvieron modelos explicativos respecto a los obstáculos en la
implementación de un biodigestor compatible con la economía circular para Cozumel.
Asimismo, se identificaron los principales obstáculos en la implementación del
biodigestor, como: la necesidad de fortalecer instrumentos jurídicos y económicos, y la
falta de interés y liderazgo ambiental de la red de actores. Del mismo modo, los
factores potenciales para la posible adquisición son aspectos técnicos y financieros
para la inversión, oferta de proveedores ad hoc y las exigencias del mercado turístico
para la competitividad ambiental de la isla.
Desarrollo turístico en comunidades rurales costeras de México: un análisis crítico
del discurso
Authors: Aguilar Becerra Cesar Daniel
Published: June 2023

Las comunidades rurales costeras (CRC) son espacios de importante valor para la
creación de nuevos destinos de sol y playa. En zonas rurales, el turismo puede
concebirse bajo tres modelos de desarrollo turístico (MDT) ya documentados; exógeno,
endógeno y neo-endógeno. En México, donde el turismo en CRC va en aumento, no se han
documentado aún las características de cada modelo. Por lo tanto, el objetivo de este
trabajo fue construir las realidades del constructo entre los diferentes tipos de MDT en
las CRC de México. Para ello, se realizó una revisión de la literatura utilizando
artículos y capítulos de libros electrónicos disponibles en la plataforma de Google
Académico, y para el análisis del contenido se utilizó el enfoque del análisis del
discurso crítico. De acuerdo con los resultados obtenidos, los MDT exógeno, endógeno y
neo-endógeno están presentes en las CRC. Cada modelo tiene características disímiles
desde el punto de vista teórico, pero ya en su desenvolvimiento in situ existen aspectos
negativos en los tres MDT. En conclusión, la presencia del turismo en este tipo de
comunidades rurales en México necesita de la intervención de las partes involucradas en
aras de coadyuvar en la planificación y sustentabilidad.
Motivaciones y expectativas de los turistas y desempeño de los viajes de
observación de ballenas en Bahía de Banderas
Authors: Espinoza Rodríguez Iyari Janethzy , Chávez Dagostino Rosa María
Published: June 2023

La observación de ballenas (OB) es una importante actividad turística a nivel
mundial. En México está regulada por la NOM-131-SEMARNAT-2010. En Bahía de Banderas, el
número de permisos para la OB ha aumentado, reflejo de la demanda del servicio. El
incremento de turistas y la demanda de la actividad podría afectar negativamente a las
poblaciones de ballenas, las comunidades costeras y la experiencia del turista. El
objetivo del trabajo fue identificar los motivos de los turistas para contratar un viaje
de OB, sus expectativas y el desempeño de la actividad. Se aplicaron 511 encuestas a
turistas que adquirieron un viaje para OB en 11 diferentes empresas, durante tres
temporadas. Se encontró que poco más de la mitad fueron extranjeros, la OB no es el
motivo principal del viaje, la mayoría no había visto ballenas, y desconocen la especie
a observar y las regulaciones vigentes. Los turistas desean ver muchas ballenas a una
distancia de 5 metros y por un tiempo no mayor a 30 minutos; el 73.4 % de los turistas
prefieren que el viaje se conduzca de manera respetuosa con las ballenas. Al finalizar
la actividad, los visitantes expresaron satisfacción con la cantidad de ballenas
observadas, distancia y tiempo de observación. En contraparte, el análisis de
expectativa-desempeño refleja que las expectativas de los turistas no fueron cumplidas.
Los turistas percibieron de moderadas a muchas embarcaciones. Estos resultados pueden
incidir en la toma de decisiones y en la identificación de áreas de oportunidad en
materia de regulación y calidad del servicio.
Pandemia y turismo: aproximación al gasto del visitante transfronterizo en Tijuana
en un marco pandémico
Authors: Morgan Medina Jorge Carlos , Hernández Ponce Oscar Ernesto , López Vizcarra Jesús Amparo
Published: June 2023

A raíz de los eventos sucedidos durante la pandemia ocasionada por la COVID-19, el
mundo experimentó un sinnúmero de medidas restrictivas en varios sentidos, desde el
cierre de fronteras terrestres y toma de medidas sanitarias excesivas, hasta reducciones
de las capacidades de ingreso a establecimientos de alimentos y bebidas, de hospedaje y,
en general, de servicios; es decir, medidas más bien de tipo local-regional. En este
sentido, la ciudad fronteriza de Tijuana no se vio tan afectada por las primeras medidas
mencionadas, toda vez que las fronteras no fueron cerradas por el lado mexicano. Al no
presentarse en la región transfronteriza de Tijuana y San Diego (RTSD) estas
restricciones de flujos turísticos, queda solamente cuestionarse si otros factores
inherentes al fenómeno pandémico (inflación, encarecimiento, restricciones, etc.)
llegaron a influir en el consumo de los visitantes transfronterizos, de tal suerte que
se pueda detectar algún tipo de transición durante la pandemia mencionada. Para ello, se
realizó un estudio de tipo mixto, en donde una primera fase de tipo cualitativo se
cristalizó a través de la técnica de observación, y la segunda fase de tipo
cuantitativo, mediante la técnica de encuesta. La técnica cualitativa de observación, en
la cual se utilizaron 20 fichas de observación, permitió calcular el número aproximado
de automóviles por mes que cruzan la frontera de regreso a los Estados Unidos de
América, y establecer así la muestra. En el muestreo se aplicaron un total de 307
encuestas, garantizando un 94.5 % de confiabilidad y un ± 4.5 % de margen de error; en
el campo se obtuvieron datos como: los visitantes tienen principalmente entre 26 y 60
años, son principalmente empleados y tienen ingresos de 20 mil a 40 mil dólares al año,
utilizan su auto propio para visitar Tijuana y se hospedan en hoteles y en casas de
segunda residencia, viajan con su pareja y sus familias, sobre todo en fines de
semana.
STRUKTUR DAN KOMPOSISI VEGETASI MANGROVE DI KAWASAN PERKEBUNAN DESA PINOTU
Authors: Febriawan Aan
Published: June 2023

Penelitian ini bertujuan mendeskripsikan struktur dan komposisi vegetasi mangrove tumbuh secara alami di kawasan perkebunan di Desa Pinotu. Metode yang digunakan adalah metode transek, dengan peletakan nested plot secara purposive berdasarkan pertimbangan tingkat pertumbuhan, yakni plot 1 x 1 m untuk anakan, 5 x 5 m untuk pancang dan 10 x 10 m untuk pohon. Selanjutnya dilakukan perhitungan nilai penting, sehingga diketahui jenis yang bernilai penting rendah yaitu Aegiceras floridum R. & S. 11,7 % pada tingkat anakan, Sonneratia alba J.E. Smith 10,5 % pada tingkat pancang, dan Pongamia pinnata (L.) Pierre 2,8 % pada tingkat pohon. Sementara jenis yang bernilai penting tinggi adalah Avicennia marina (Forsk.) Vierh. 114,8 % pada tingkat anakan, Rhizophora apiculata Bl. 168,4 % pada tingkat pancang dan Avicennia marina (Forsk.) Vierh. 153,9 % pada tingkat pohon. Berdasarkan hasil yang diperoleh, diketahui komposisi penyusun vegetasi hutan mangrove terdiri atas 9 jenis yang tergolong dalam 6 suku, yaitu Aegiceras corniculatum (L.) Blanco, Aegiceras floridum R. & S., Pongamia pinnata (L.) Pierre, Sonneratia alba J.E. Smith, Bruguiera gymnorrizha (L.) Lamk., Rhizophora apiculata Bl., Rhizophora mucronata Lmk., Xylocarpus moluccensis (Lamk) Roem. dan Avicennia marina (Forsk.) Vierh.
Evaluation of the productive performance of Colombian hair sheep based on growth traits
Authors: Palacios Erazo Yineth Alexandra , Ariza-Botero Manuel Fernando , Bustamante-Yánez Moris de Jesús , Vergara-Garay Oscar David , Álvarez-Franco Luz Ángela
Published: June 2023

Contextualization: Colombian hair sheep [CHS] are animals of great importance, because their genetic material has been adapting for more than 500 years to the environment; besides, these animals have a transcendental role in Colombia for their contribution to food security and family economy. However, a great part of the sheep production in the country presents low production parameters.
Knowledge gap: ignorance of Colombian hair sheep (CHS) biotypes’ productivity has led to the undervaluation of the genetic resource found in these animals, accompanied by insufficient efforts to improve sheep production systems.
Purpose of the study: determine the productive performance of three biotypes of Colombian hair sheep.
Methodology: this study was conducted in these biotypes of hair sheep: Ethiopian [CHSE] (40 individuals), Sudan [CHSS] (60) and Creole crossed with Pelibuey [CHSP] (60). Five growth traits [birth weight, adjusted weaning weight at 90 days, adjusted final weight at the age of 1 year, and pre-weaning and post-weaning weight gain] were evaluated. Descriptive statistical and variance analysis were performed based on variables such as sex, farm, type of birth, parent, and season of birth. Also, a Duncan's multiple range test was performed.
Results and conclusions: CHSE showed low productive parameters that were mostly affected by the variables sex and farm [p ≤ 0.05]. CHSs displayed a low to moderate productive performance and many traits were also affected by sex and farm [p ≤ 0.05]. Lastly, CHSP showed moderate to high productive parameters, which were mainly affected by parent, season, and type of birth [p ≤ 0.05]. The results determined the productive performance of the three sheep biotypes, among which CHSE showed low growth parameters, CHSS showed low to moderate parameters, and CHSP displayed moderate to high parameters. In all cases, the three biotypes were mostly affected by non-genetic variables.
Influencia de la temperatura sobre la calidad poscosecha del durazno [Prunus persica (L.) Batsch] cv. Gran Jarillo bajo condiciones de trópico alto
Authors: Amaya Martin Jose Fabian , Deaquiz Oyola Yuli Alexandra
Published: June 2023

Contextualización: El durazno es un producto altamente perecedero debido a su patrón respiratorio de tipo climatérico y su alta producción de etileno, lo que conlleva, un acelerado deterioro de su calidad organoléptica luego de ser cosechado y una rápida senescencia. Actualmente, existen diversas técnicas que se aplican con el fin de retardar los cambios que acompañan el proceso de maduración poscosecha, entre ellos la refrigeración, la cual es una de las herramientas mayormente usadas para prolongar la calidad de los frutos altamente oxidables y aumentar su durabilidad en el tiempo.
Vacío de conocimiento: El desconocimiento de las características expresadas con la maduración de los frutos de durazno, específicamente del cultivar Gran Jarillo y la falta de estudios relacionados y bajo las condiciones del trópico alto, limita a los productores la toma de decisiones frente a las técnicas mayormente eficientes de almacenamiento, con el fin de evitar las pérdidas de la producción luego de la cosecha.
Propósito: Este estudio tuvo como objetivo dilucidar el efecto de diferentes temperaturas de almacenamiento en los parámetros de calidad de los frutos de durazno [Prunus persica (L.) Batsch] cv. Gran Jarillo después de la cosecha.
Metodología: Los frutos se almacenaron a temperatura ambiente (T1: 17 °C), testigo a temperatura ambiente con una cubierta de biopolímeros (T2: 17 °C más cera) y temperatura de refrigeración (T3: 2 °C), durante 22 días. Los resultados obtenidos se analizaron con un diseño completamente al azar con 4 repeticiones los días 0, 7, 14 y 22. 
Resultados y conclusiones: el T3 (2 °C) mantuvo una mayor firmeza y una menor tasa respiratoria, menor porcentaje de pérdida de peso, menor concentración de sólidos solubles titulables (SST), una menor relación de madurez (SST/ATT) y mayor concentración de ácidos totales titulables (ATT). Por su parte, el índice de color (IC) de la epidermis aumentó durante la maduración en los tres tratamientos, mayormente en T1. Para el caso de la durabilidad en el tiempo, T3 se mantuvo hasta el día 22, mientras que los demás tratamientos a los 14 días perdieron su calidad organoléptica. Lo que permitió concluir que los frutos almacenados a temperatura baja retardaron su proceso de maduración en comparación a los almacenados a temperatura ambiente.
Efecto de la suplementación a base de cascarilla de cacao (Theobroma cacao) sobre la producción y calidad composicional de la leche en vacas mestizas en pastoreo
Authors: Ortiz Ravelo Jilmart Francisco , Maza Ortega Román Enrique , Sotelo Moreno Deilen Paff , Flórez Delgado Dixon Fabián , Cely Leal Dubel Reinaldo
Published: June 2023

Contextualización: la suplementación nutricional para bovinos en pastoreo requiere de alternativas locales que permitan optimizar el desempeño productivo de los animales y reducir los costos de producción.
Vacío de conocimiento: la suplementación alimenticia a base de cascarilla de cacao es una alternativa nutricional y económicamente viable para las ganaderías tropicales que busca responder a los siguientes interrogantes: ¿cuál será el efecto del suplemento a base de cascarilla de cacao sobre la productividad y calidad composicional de la leche bovina? y ¿su implementación permitirá reducir los costos de producción sin afectar los parámetros productivos y la calidad del producto final?
Propósito: evaluar el efecto del ofrecimiento de un suplemento a base de cascarilla de cacao sobre la producción y calidad composicional de la leche de vacas mestizas en pastoreo de gramíneas tropicales.
Metodología: se emplearon 10 hembras bovinas multíparas mestizas Pardo x Guzerat en segundo tercio de lactancia con edad media de 7 años y peso promedio de 450± 38 kg, las cuales se distribuyeron bajo un diseño completamente al azar con dos tratamientos: control y suplementado (2kg/animal/día) y cinco repeticiones cada uno. El suplemento estaba compuesto de cascarilla de cacao, salvado de trigo, grano de maíz molido, melaza, urea, fosfato bicálcico y sal mineralizada ofreciéndose diariamente en el momento del ordeño tras un periodo de adaptación de 14 días. La producción de leche fue cuantificada diariamente y corregida al 4% de grasa y la composición de la leche cada 15 días empleando espectrofotómetro infrarrojo. Los datos obtenidos fueron sometidos a un ANOVA con el 5% de significancia empleando el software PROC MIXED de SAS v. 9.4. El análisis económico se realizó mediante presupuestos parciales. 
Resultados y conclusiones: la suplementación aumentó (p<0.05) la producción láctea y producción corregida al 4% de grasa. Hubo interacción entre tratamientos y tiempos de colecta (p<0.05) sobre concentración de grasa, proteína, sólidos no grasos y densidad de la leche. La concentración de lactosa y minerales incrementó con la suplementación y los tiempos de colecta (p<0.05). La suplementación mejoró el ingreso neto por venta de leche en USD$ 0.63 por animal día. La suplementación a base de cascarilla de cacao mejora la producción y la calidad composicional de la leche de vacas mestizas en pastos de Brachiaria humdícola generando mayores ingresos.
Effect of Interpersonal Communication and Learning Facilities on Learning Motivation in Elementary Schools, Sorong Regency
Authors: Istiqomah Rafiqatul , Agnesa Oki Sandra , Rusdin Rusdin
Published: June 2023

This study aims to determine whether there is an influence from parents' interpersonal communication and learning facilities at home on students' learning motivation in elementary schools in Sorong Regency. This type of research is a quantitative correlational design. Using multiple linear regression statistical techniques with a significance level of 5%. Data was collected in class V at SD Inpres 15, Sorong Regency, with 53 students. The results showed a positive and significant influence between parents' interpersonal communication and learning facilities at home on students' learning motivation in elementary schools. This result is evidenced by the analysis results, namely the Sig value of 0.000 <0.05, which means the hypothesis is accepted. As for the results of the coefficient of determination, that is equal to 0.546 and shows that the influence of interpersonal communication between parents and learning facilities at home on student motivation is equal to 54.6%. So interpersonal communication and learning facilities positively affect students' learning motivation.
Analysis of Supporting and Inhibiting Factors of Students' Critical Thinking Ability at MIN 4 Sukoharjo
Authors: Supartin Amin
Published: June 2023

This research is motivated by the many factors influencing students' critical thinking skills. The purpose of this study was to review the supporting and inhibiting factors for students' critical thinking skills at MIN 4 Sukoharjo, Kab. Sukoharjo, Central Java. This research is descriptive with the type of qualitative research and data collection through interviews and observation. The resource person interviewed was one of the class VI teachers at MIN 4 Sukoharjo. The research showed several supporting and inhibiting factors for students' critical thinking skills at MIN 4 Sukoharjo. The results of the research are in the form of supporting factors for students' critical thinking skills as follows: (1) School facilities in the form of Indonesian Madrasah Competency Assessment/Asesmen Kompetensi Madrasah Indonesia (AKMI) books for class V; (2) Implementing the 2013 Curriculum; (3) School policies that free teachers to explore students, and (4) Selection of appropriate learning methods and models. Meanwhile, the results of the research were in the form of inhibiting factors for students' critical thinking skills as follows: (1) The facilities provided for those other than class V were only in the form of providing HOTS questions based on the subject by each teacher; (2) Teachers are less creative and innovative which causes learning activities to be not conducive; (3) the intellectual level of students and limited learning time, and (4) teachers do not master IT
Balloon angioplasty and stent placement to restore acute occluded pulmonary veins
Authors: Wang Jie , Hu Ping , Ku Lei-zhi , Ma Xiao-Jing
Published: June 2023

A 39-year-old male patient presented for medical treatment with cough
and minor hemoptysis for 3 days. Cardiac catheter ablation was
successfully performed in another hospital 1 week ago. An emergency
pulmonary CT examination revealed diffuse ground glass exudation and
consolidation of the left lower lung, and a contrast-enhanced
cardiovascular CT confirmed occlusion of the left lower pulmonary vein.
Occluded pulmonary veins were successfully opened by balloon dilation
and stent placement.
Female and smokers are associated with acute and long COVID-19 symptoms among 32,528 vaccination individuals: a cross-sectional and nationwide study from China
Authors: Su Zheng , Li Yinghua , Xie Ying , Huang Zhenxiao , Cheng Anqi , Zhou Xinmei , Li Jinxuan , Qin Rui , Wei Xiaowen , Liu Yi , Xia Xin , Song Qingqing , Zhao Liang , Liu Zhao , Xiao Dan , Wang Chen
Published: June 2023

Backgrounds To our knowledge, there is no available nationwide
data on omicron symptom patterns in China mainland. We aim to determine
the acute and long COVID-19 symptoms in the omicron-dominant period and
to evaluate its association with age, sex and smoking status.
Methods We designed a cross-sectional nationwide study and data
about self-reported symptoms were collected by an online platform named
Wenjuanxing. Eligible participants were aged 25 - 65 years and were
symptomatic. To improve the representativeness of sample size, the
ratios of the number of people of different ages and genders were
weighted by the data from the Seventh National Census (2020 years), and
validated by a published nationwide representative study through
comparing smoking rates. Descriptive analysis was conducted to report
information on demographic characteristics, diagnosis ways and duration
time, acute symptoms, hospitalization, severity and long COVID-19
symptoms. And, multivariate Logistic regression models were used to
explore the effect of age, sex and smoking on acute and long COVID-19
symptoms. Results A total of 32,528 individuals diagnosed as
COVID-19 infection from October 1, 2022 to February 21, 2023 were
included. The top three acute symptoms of COVID-19 infection were fever
(69.90%), headache (62.63%), sore throat (54.29%). The rates of
hospitalization within 7 days, symptoms disappear within 21 days were
3.07% and 68.84%, respectively. Among 3983 COVID-19 patients with 3
months or more time difference between first infection and participation
into the study, the long COVID-19 rate was 19.68% and the primary
symptoms were muscle weakness (19.39%), headache (17.98%) and
smell/taste disorder (15.18%). Compared with male and never smokers,
female and current smokers were risk factors for each acute CVOID-19
symptoms, and also had a higher risk for fatigue among long COVID-19
symptoms. Lastly, female and current smokers also were related with more
number of symptoms during acute infection period. Conclusions
Omicron variant to be milder in terms of severity in China mainland.
And, more attention should be given to high-risk population (current
smokers and women) to control disease burden caused by COVID-19.
A mismatch between community assembly and abundance-based diversity indices
Authors: Edmonds Matthew , Bufford Jennifer , Godsoe William
Published: June 2023

Long-term ecological studies have consistently reported slower than
expected changes in biodiversity over time. One explanation for this
phenomenon is that commonly used diversity measurements such as species
richness are too coarse to detect mechanisms shaping community assembly.
It remains unclear whether abundance based diversity measurements are
susceptible to the same problem. To test this, we study temporal changes
in abundance based diversity indices across 3341 observations from 880
plots from 15 long-term vegetation plot studies. We then partition
diversity change into mechanisms of interest to ecologists: selection,
drift, and immigration. We show that these mechanisms are an imperfect
predictor of temporal diversity change, creating a mismatch between
changes in species abundances and changes in diversity, particularly
when shifts in diversity are rapid. To resolve this mismatch, we
quantify a less studied mechanism “rarity shifts”, which measure how
an individual’s contributions to diversity changes over time. We found
rarity shifts are an important component of diversity change across many
studies. Furthermore, rarity shifts tend to oppose other mechanisms,
particularly selection. Therefore, rarity shifts obscure changes in
relative abundance from abundance based diversity measurements,
revealing why diversity changes appear slower than expected. Ultimately,
understanding rarity shifts can lead to a more accurate understanding of
the rate and nature of temporal diversity change in ecology and
conservation.
Histological and immunohistochemical diagnosis of Secretory Carcinoma of Parotid in a low-resource setting: A case report
Authors: Ghimire Prinska , Magar Sagar Rana , Khanal Surendra , Basnet Alina , Thapaliya Sahil , Panthi Bishal , Karki Shovana , Acharya Sulav , Bali Kanchana , Adhikari Aayush
Published: June 2023

Secretory carcinoma of salivary gland is a recently-recognized tumor
resulting in pathognomic ETV6-NTRK3 gene fusion, identification of which
is gold standard for diagnosis. In resource-limited settings unable to
perform molecular analysis, histology and immunohistochemistry are
quintessential for diagnosis. We present an illustrative case,
discussing typical presentation of this rare entity.
Políticas públicas para el cierre intergeneracional de brechas tecnológicas en líderes de acción comunal
Authors: Garzon Avila Yon , Contreras Salamanca Luz Briyid
Published: June 2023

Problemática: partiendo del enfoque del modelo de aceptación tecnológica (TAM), se exponen las causas del rezago tecnológico de los líderes comunitarios desde un análisis de las diferencias generacionales. Las generaciones antiguas presentan resistencia al cambio tecnológico. Las políticas públicas desempeñan un papel crucial en el cierre de dichas brechas y en el impulso hacia la participación juvenil en la administración de las organizaciones comunitarias. Objetivos: analizar las consecuencias de la brecha tecnológica entre líderes comunitarios desde un enfoque del TAM con el fin de emitir políticas públicas en torno a la mitigación del rezago generacional. Materiales y métodos: descripción de las características generacionales de los dignatarios comunitarios y las condiciones tecnológicas, según el TAM. Resultados: existen barreras frente a la entrada y actualización a la tecnología por parte de las generaciones más antiguas debido a la asincronía con los descubrimientos, mientras que las generaciones nuevas, que poseen menos obstáculos en la aceptación tecnológica, presentan un comportamiento apolítico en el liderazgo comunitario. Discusión: las políticas públicas son indispensables en el cierre de la brecha y en el impulso hacia la entrada al liderazgo de los jóvenes en las organizaciones comunitarias. Conclusiones: existe un rezago tecnológico de los dignatarios de las organizaciones comunitarias debido a las diferencias generacionales marcadas por la poca participación de los jóvenes en posiciones de liderazgo comunitario. Contribución / originalidad: hallazgo de las principales consecuencias del rezago tecnológico de líderes comunitarios.
Effects of green synthesized calcium oxide nanoparticles from extracts of Citrullus colocynthis on body weight, plasma atherogenic index, and histology of liver and stomach of high-fat-diet-fed rats
Authors: Mazher Mubsher , Ishtiaq Muhammad , Mazhar Mussaddaq
Published: June 2023

Citrullus colocynthis has been used to treat obesity and hyperlipidemia. Nanoparticles, due to their nano size, phytochemical adsorption, improved systemic absorption and high bioavailability, can potentially improve the bioactivity of C. colocynthis. The present research focused on studying the effects of green synthesized calcium oxide nanoparticles (CaONPs) from C. colocynthis fruit extracts (CCFE) on the body weight, the atherogenic index of plasma (AIP), and the histopathology of male albino rats. Ethyl??-d-glucopyranoside was the major constituent of CCFE, along with phenols and fatty acids. The total phenolic and flavonoid contents of CCFE were 203.52 and 173.56 mg/g, respectively. Male albino rats (n=36) were divided into six groups (six rats per each group). Rats in different groups received a normal diet, a high?fat diet (HFD), HFD with lovastatin (10 mg/kg), HFD with CCFE (20 mg/kg), HFD with CaONPs (2 mg/kg), and HFD with a synergistic solution of CCFE (10 mg/kg) and CaONPs (1 mg/kg), respectively. When CaONPs were administered in combination with CCFE, significant weight-lowering activity (36.36%), improved cardiovascular health as per AIP (0.12?0.01b), and fewer disturbances in liver function parameters were observed. Histological analysis at the end of the experiment showed that CaONPs were not toxic to the gastric mucosa and were slightly toxic to hepatocytes. It can be concluded that CaONPs synthesized from CCFE can be a potent weight-lowering and antilipidemic agent with fewer side effects.
Intuitions, trust, and social change in times of crisis
Authors: Prodanovic Srdjan
Published: June 2023

In this paper, I will investigate the complex relationship between intuition,
trustworthiness, and trust. I will first examine some of the more prevalent
accounts of trust which either (over)emphasize the cognitive aspect of
generating trustworthiness, or indeed acknowledge the importance of affects
and emotions, but only as part of a neatly organized dual structure ? which
is in essence complementary with the cognitive understanding of how we start
trusting each other. I will argue that intuitions provide a more detailed
insight into trustworthiness because they are simultaneously cognitive and
affective in nature. I will also consider how inferential and holistic
intuitions might influence our understanding of trustworthiness, especially
in times of crisis.
Recognition as a counter hegemonic strategy
Authors: Ivkovic Marjan
Published: June 2023

Building on the analyses of cultural hegemony in the works of Nancy Fraser
and Wendy Brown, I argue in the paper that the historic bloc (order of
cultural hegemony) of post-Fordist capitalism is characterized by a
particular dynamic between several ?axes? of hegemony that gives rise to the
?paradox of engagement/disengagement?. The ?progressive-expertocratic? axis
of hegemony creates a subject-position of the ?engaged self?, a figure
embodying a certain promise of political agency that is simultaneously
obstructed by other, depoliticizing axes of hegemony. This dynamic is
conducive to the rise of contemporary right-wing authoritarianism, which
purports to fulfill this promise of political agency through a series of
displacements - the counterhegemonic left, I argue, has so far not
formulated an effective alternative to this strategy. In the second part, I
explore the potential of Axel Honneth?s theory of recognition, in particular
his concept of ?interpersonal respect?, for grounding a left strategy of
connecting (mutually articulating) the hegemonic figure of the ?engaged
self? with a progressive politics of social transformation. To that end, I
elaborate Honneth?s perspective by means of an argument about the role of
trust in the context of societal crises that Igor Cvejic, Srdjan Prodanovic
and I have recently formulated.
Kant’s trust in the political value of labour and global mobility. A non-ideal account of cosmopolitan normativity
Authors: Sánchez Madrid
Published: June 2023

This account first endorses the normative strength of Kant?s cosmopolitan right, even if it is not lacking in non-ideal traits, and then takes issue with Flikschuh?s well-known interpretation of what she labels Kant?s ?dilemma of sovereignty?. Second, I tease out some of the non-ideal features underpinning Kant?s cosmopolitanism with the help of the Kantian theory of labour, which in turn helps reveal the material conditions behind the qualifications of the subject who in Kant?s view is able to move through the world. Finally, I draw some conclusions about the advantages of a non-ideal approach for upgrading the normative value of global mobility in Kant?s juridical philosophy.
The importance of interdependence and responsible epistemic behavior in crises
Authors: Smiljanic Nikolina
Published: June 2023

Recently, we found ourselves in an unexpected and specific situation facing
the COVID-19 pandemic which we wanted to understand. It was a situation that
no one predicted, and we all wanted to know more about it using various
epistemic practices. The COVID-19 pandemic has had a significant impact on
our lives and has emphasized the importance of behaving in a mutually
interdependent manner, as we are directly responsible for the lives and
health of others in these circumstances. This paper emphasizes the
importance of interdependence and epistemic responsibility of individuals
within society and policymakers who bear a particularly heavy epistemic
responsibility during the COVID-19 pandemic and possible future crises.
Man, space and tourism
Authors: Stankovic Stevan
Published: June 2023

Modern tourism is based on numerous and diverse, direct, indirect, occasional
and permanent, relations of man, society and space, i.e. the environment in
which it takes place. Tourism is a pronounced spatial phenomenon. It takes
place on land and sea, on almost all continents and in all countries. Where
it is organized on the purposeful valorisation of space, tradition and good
organization, it is the basis for achieving satisfactory economic and social
effects. That is why local, regional, state and world organizations pay
special attention to it. By valorising space, tourism, achieving economic
effects, contributes to the enrichment of the balance of payments of
receptive regions and countries. Tourism can valorise some objects,
phenomena and environmental processes, which are not interesting for other
activities, which is important for expanding the field of business.
Tourist satisfaction with services of tourism in the Pcinja district
Authors: Maric-Stankovic Andjelina
Published: June 2023

The Pcinja District is located in the southeast of Serbia and represents an
area with natural and anthropogenic tourist attractions as the basis of the
tourist offer of the destination itself. However, in addition to tourist
attractions and tourist infrastructure and superstructure as elements of
tourist valorisation of the destination, the tourist staff is also a
significant and indispensable factor of the tourist affirmation of the area.
Tourism employees affect the entire tourist offer and thus affect the
tourist traffic in the destination by virtue of how they operate, improve
and conduct their business with the tourists. The aim of this paper is to
present the degree of tourist satisfaction with the services of tourism
employees during their stay in the Pcinja District. The degree of tourist
satisfaction was determined by empirical research conducted in the area of
the district in the second half of 2021, in which 526 respondents/tourists
participated. The results were analysed using the IBM SPSS Statistic 20
software package. Partial (dis)satisfaction of respondents/tourists with
the elements of tourist infrastructure and superstructure, as well as with
the services of tourism employees, is shown by the obtained relatively low
average scores of the analyzed variables. Using the T-test and ANOVA, it was
concluded that the degree of (dis)satisfaction of tourists does not
statistically significantly differ according to gender and age, that is,
they generally have a uniform attitude when it comes to the development of
the tourist infrastructure and superstructure and the features of the
services of tourism employees in the Pcinj? District.
Multi-cropping: A land-use pattern that supports livelihood activities and prevents land degradation in Sierra Leone
Authors: Fayiah Moses , Turay Alie , Fayiah Muloma , Singh Sanjay , Verkhoturov Vasily
Published: June 2023

Land is a precious resource that requires adequate management attention to
harness its potential of sustaining life and enhancing livelihood for all.
The emergence of multi-cropping practices in Sierra Leone has negative and
positive outcomes regarding environ-mental degradation. This article tries
to synthesize multi-cropping land use challenges, benefits and role in
tackling land degradation. The study was conducted in Mile 91 surrounding
communities, Yoni Chiefdom, Tonkolili District, Northern provinces, Sierra
Leone. A total of 100 respondents were randomly selected and interviewed.
Additional data was collected through observation, group discussions and
desktop review. The study reveals that multi-cropping practices, farming and
deforestation were the main drivers of land-use change in the study. The key
challenges facing the sustainable management of lands in Sierra Leone are
obsolete land policies, complex land tenure system and conventional shifting
cultivation practices. The land ownership system is strictly communal, with
only a few families owning family bushes. The influx of recruited workers
from overseas and other parts of Sierra Leone has positive and negative
denotation. The study found that social problems like land confrontations,
increase in food prices, school dropout rate, and dilution of traditional
beliefs and norms are common in the study area. It is concluded that
land-use change by multi-cropping is affecting the sustainable land
management plan across the country. It is recommended that the government
review past land policies and land tenure systems to tackle land
confrontations soon.
The Effect of Reporting Key Audit Matters on Audit Fees and Financial Reporting Quality: Evidence from Hong Kong
Authors: Espahbodi Reza , Lin Jiarong , Liu Nan , Mock Theodore J. , Song Mohan
Published: June 2023

In 2015, the Hong Kong Institute of Certified Public Accountants issued a standard requiring auditors to communicate key audit matters (KAMs) in the audit report. This standard provides an opportunity to examine the effect of KAMs on audit fees and financial reporting quality. Using public companies listed on the Main Board of the Hong Kong Stock Exchange as the treatment group and the companies listed on the Shanghai and Shenzhen Main Board Stock Exchanges as the control group, pre-post and difference-in-differences analyses show that the KAMs standard resulted in improved financial reporting quality but also higher audit fees. Further analyses show that, although the increase in audit fees was related to the risk of material financial statement mis-statements and audit firm business risk, the improvement in financial reporting, which occurred for companies with low financial reporting quality, resulted from the “threat to management of disclosure in KAMs.”
Rajiv Banker: Management Accounting Virtuoso
Authors: Anderson Mark , Balakrishnan Ramji , Krishnan Ranjani
Published: June 2023

This article documents and celebrates the immense contributions of Professor Rajiv Banker (1953–2023) to management accounting. After a brief history of his career, we document his prolific output and impact. We organize our overview of his contributions to management accounting into four broad streams, as follows: cost drivers and systems, managerial drivers of cost behavior, performance measurement and compensation, and data envelopment analysis for productivity measurement in organizations.

JEL Classifications: M10; M40.