bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of vegetation blanket cover with different materials on soil microbial community structure in opencast coal mines in arid areas
Authors: wang ziyin , Li Zihao , Yang Pengbin , Crabbe M. James C. , Zhao Xiaoyu , liu bingru
Published: November 2022

：Vegetation blanket restoration techniques of different materials in
mine drainage field provide different environments for plant growth, but
effects of vegetation blanket cover on soil microbial community
structure and their diversity characteristics were not well known，
especially in arid areas. In this study, high-throughput sequencing was
used on the study site, located at Dafeng Mine, the Helan Mountains,
Ningxia, China. Soil microbial communities were analyzed under four
different treatments: Straw, Straw-Coir, Coir vegetation blanket types,
and a bare soil control. The results showed that the contents of soil
total nitrogen, available potassium, urease, and catalase were
significantly increased in different types of vegetation blankets.
High-throughput sequencing showed that the straw vegetation blanket
increased bacterial diversity while the coir vegetation blanket
increased fungal diversity. The dominant bacterial phyla were
Proteobacteria, Bacteroidetes, Actinobacteria, and Chloroflexi, whose
main influencing factors were total nitrogen, catalase, urease, and
protease. The dominant fungal phylum was Ascomycota, whose main
influencing factors were alkaline phosphatase, soil organic carbon,
total nitrogen, and electrical conductance. These results indicate that
vegetation blanket cover can improve the physicochemical properties of
soil, increase the diversity and richness of soil microorganisms, and
improve the structural composition of the community, thus improving the
soil environment in the mining areas in arid regions, while laying a
good foundation for further restoration measures.
A Flow-through Electrode for Superior Water Splitting by Mitigating Bubble Induced Overpotential
Authors: Chen Yu , Chen Jiaojiao , Bai Ke , Xiao Zeyi , Fan Senqing
Published: November 2022

Bubble evolution induced overpotential for hydrogen production by water
electrolysis is an important issue and the generated gas bubbles will
cover the internal/external surface of the electrode. Herein, a
flow-through electrode loaded with Co-based nanosheets is presented.
Under the condition of flow-through mode, the catalysts can be
adequately exposed because the generated bubbles can be timely removed
from the catalyst surface. The overpotential can be reduced by about 100
mV for hydrogen evolution reaction (HER) and 57 mV for oxygen evolution
reaction (OER) under the condition of 300 mA cm-2 and electrolyte flux
of 339 m3 m-2 h-1. A novel electrolyzer assembled with flow-through
electrode for hydrogen production by alkaline water electrolysis is
conducted. The cell voltage can be decreased by 100 mV at 400 mA cm-2 at
6 M KOH, 338 K, and 1 atm, with the energy of 5 kWh Nm-3 required.
Implications of Recent Foreign Bank Account Reporting Litigation
Authors: Ruggieri Lynn , Camp Julia M. , Jones Lynn Comer , McQuilkin John
Published: November 2022

Foreign Bank Account Reporting (FBAR) has emerged recently as a litigation matter in several federal courts. While past cases primarily focused on the determination of willful versus nonwillful FBAR violations, recent cases bring to light issues that should lead Congress to revisit requirements and legislation specifically related to penalties. This paper examines four specific topics recently discussed in the courts: the assessment of penalties per FBAR form or per account; Eighth Amendment challenges; payment of penalties by an estate; and repatriation of assets to pay penalties. We address what the recent FBAR litigation tells us about compliance, enforcement, and policy and encourage Congress to revisit and make changes to the law.
First Case of Allochronic Onset of Two Primary Dermatofibrosarcoma Protuberans Lesions Proved by COL1A1-PDGFB Fusion Gene Analysis
Authors: Ikeda Ayano , Hisaoka Masanori , Goto Hiroyuki , Yoshida Yuichi , Yamamoto Osamu
Published: November 2022

Abstract is missing (Short communication)
Effect of Successive In-office Bleaching Sessions on the Surface Properties, Substance Loss, Biaxial Flexural Strength, and Reliability of CAD-CAM Monolithic Materials
Authors: Queiroz JFC , Fernandes L , Dovigo LN , Fonseca RG
Published: November 2022

Little is known about the effects of in-office bleaching on the surface properties and on other aspects of CAD-CAM monolithic materials, especially when successive bleaching sessions are conducted. This study evaluated the effect of up to three successive in-office bleaching sessions on the microhardness, roughness, topography, substance loss, biaxial flexural strength (BFS), and reliability of CAD-CAM monolithic materials. Disks from Lava Ultimate (LU), Vita Enamic (VE), and IPS Empress CAD (EMP) were fabricated and submitted to one, two, and three bleaching sessions. In-office bleaching was performed with 40% hydrogen peroxide and each session consisted of three applications of 20 minutes each. The analyses regarding the aforementioned parameters were assessed before and after the first, second, and third bleaching sessions, except for BFS, which was evaluated at the baseline and after the third session. Weibull modulus was calculated from the BFS data. Bleaching decreased the microhardness of LU and VE from the third and second sessions, respectively, and affected neither the roughness nor the BFS of the three materials. However, in LU, it decreased the reliability and caused topographic changes, which were accentuated by the increase in the number of sessions. In general, LU and EMP showed, respectively, the highest and the lowest substance losses. Successive in-office bleaching sessions with the use of the protocol of the present study should be avoided in LU and VE.
Gender-Equal Imbalance?
Authors: Snickare Lotta , Holter Øystein Gullvåg
Published: November 2022

Most staff and students at the Faculty of Mathematics and Natural Sciences at Oslo University want gender equality, both in the workplace and in their private lives. Yet, since they also assume that academia is a meritocracy, the faculty’s gender imbalance is seen as a result of women and men making different choices. Above all, the vertical gender balance, with more men at the top and in leadership positions, is explained by the fact that women prioritize children and family over an academic career. Our quantitative and qualitative data, however, refute the explanation that women deliberately opt out of an academic career in favour of active parenting. Instead, we show that more women than men have failed to fulfil their own career ambitions. On the other hand, we also note that the potential to combine work and family are different for women and men.
From Biology to Strategy: The Development of a Management Team
Authors: Snickare Lotta , Amundsdotter Eva , Holter Øystein Gullvåg
Published: November 2022

Research on gender equality projects emphasizes gender equality as a management responsibility, but not many studies focus on how management can organize and implement the process in order to achieve sustainable change. What should the management team actually do? How does the team need to develop in order to be capable of doing what needs to be done? The analysis in this chapter is based mainly on qualitative material in the form of interviews and notes from five workshop days with the management team at the Faculty of Mathematics and Natural Sciences at Oslo University. The data show how the methods and tools that the management team acquired in the workshops have not only given the team members knowledge in the areas they addressed during the workshops, but also the confidence to determine how to proceed in new areas. The concept of sensegiving (cf. Weick & Quinn, 1999) is used to discuss their role in gender equality work. Since gender equality and inequality are done through everyday actions in the organization’s processes, the entire organization needs to be invested in any changes. The management team can approach sensegiving by legitimizing the perception of the organization as not being gender equal and by demonstrating how a gender equality perspective can be integrated in the organization’s structures and processes.
Men, Masculinities and Professional Hierarchies
Authors: Snickare Lotta , Holter Øystein Gullvåg , Liestøl Knut
Published: November 2022

Research on gender equality in academia addresses men’s experiences to only a limited extent, and the significance of masculine norms is also poorly elucidated. In this chapter, we present our results on the effects of male dominance in the Faculty of Mathematics and Natural Sciences in the University of Oslo. We first discuss whether it is an advantage to be a man at the faculty. Our data mainly confirms this. The main career challenges and problems affect men as well as women, but less frequently. We were not able to identify a specific “male” pattern of problems. Instead, the most frequent problems among the men resemble the problems among the women, like unfair competition and devaluation. In the interviews, some men feel “as affected as women” and oppose specific measures for women. Yet the survey data shows that women are more affected, especially in some respects, like combining career and care leave, and unwanted sexual attention. There are also signs of informal comradeship among men, an inadequately examined majority position, the idea that an academic career is incompatible with family and caregiving – not just for women, but for men too – and tendencies towards a persistent connection between men, masculinity and professional hierarchies.
Sexual Harassment: Not an Isolated Problem
Authors: Holter Øystein Gullvåg , Snickare Lotta
Published: November 2022

Is sexual harassment in academia an isolated problem, or is it linked to the academic work environment and culture? Research at the Faculty of Mathematics and Natural Sciences in the University of Oslo supports the latter view. Results show how sexual harassment is associated with problematic features of the workplace organization, environment and culture. This is especially clear in the case of unwanted sexual attention, which is closely linked to professional devaluation and other problems. Other more serious forms (unwanted physical contact, coercion, stalking, assault) are less frequent, yet clearly associated with unwanted sexual attention. The chapter presents and analyzes sexual harassment data in view of other recent research, and discusses why this topic is important, and how research can be improved.
Who Is Publishing What? How Gender Influences Publication Rates
Authors: Holter Øystein Gullvåg , Snickare Lotta , Gober Greta
Published: November 2022

This chapter examines scholarly publishing within the Faculty of Mathematics and Natural Sciences in the University of Oslo from a gender perspective. The question posed is whether women publish less than men, and if so, why. Based on the reported number of publications over the past two years, the study applies multivariable methods to investigate the relationship between the number of publications and factors such as position, total worktime, and gender. The analyses show that gender has little significance when these other factors are taken into consideration. The results are discussed in light of other studies on publishing practices.
Experiences in Academia: A New Survey Study
Authors: Holter Øystein Gullvåg , Snickare Lotta , Liestøl Knut
Published: November 2022

The chapter provides a summarizing review of the main findings of the FRONT project with respect to gender and gender equality on different career levels. The review is based on two surveys, an employee survey with 190 variables and 843 respondents, and a student survey with 79 variables and 213 respondents. Among students, negative experiences are significantly more common for women than men, particularly when it comes to social treatment. Among employees, women experience markedly more challenges involving factors such as negative scrutiny, unwanted sexual attention or partners whose careers were given priority. The data also reveal differences in several other factors, but these were often moderate. Thus, it is typically a complex process with many components, resulting in an “accumulated disadvantage” for women. The differences were found on all career levels but with a clear tendency towards more challenges for women on higher levels. The observations from FRONT are discussed in light of other studies, a main conclusion being that the situation is surprisingly similar in different countries.
Ethnicity, Racism and Intersectionality
Authors: Holter Øystein Gullvåg , Snickare Lotta
Published: November 2022

Research on discrimination and the effect of working towards equal status is significantly more advanced in academia in relation to gender than to other forms of discrimination. A relevant question is the extent to which analyses and measures to promote gender equality can contribute to advancing equality in other areas, including ethnic background and skin colour. And conversely: What can insight into discrimination on the basis of ethnicity bring to work on gender equality? This is the starting point for a review of the ethnic dimension of the FRONT survey’s empirical material. In this chapter, the university is seen as an international workplace. Thus the extent to which relations within the work environment and professional culture are influenced by ethnic background is investigated. The primary focus of the review is ethnicity, but the chapter also discusses how dimensions such as gender, ethnicity and class interrelate. In conclusion, the results are discussed in light of other research on intersectionality, stigmatization and gender roles.
The Bøygen Model: The Hypothesis of Accumulated Disadvantage
Authors: Holter Øystein Gullvåg , Snickare Lotta , Liestøl Knut
Published: November 2022

Material from the FRONT project shows significant gendered differences in how the working environment and organizational culture are experienced. It is not a single factor that negatively affects women, but a complex process involving many components over time – with different causes and modes of action – together giving an accumulated disadvantage. These processes and their effects are summarized in a model called “Bøygen”, after the creature who creates obstacles and counter-forces to Peer Gynt in Ibsen’s play. The academic version of Bøygen operates partly through an “accumulation” of disadvantage throughout the academic career, and partly through experiences that tend to cause loss of self-confidence and motivation. External resistance and lack of support translates into inner doubt. The Bøygen model is discussed in relation to international research on the effects of barriers to women in academia. The model is the first of three theoretical contributions to the project (Chapters 7, 8 and 9) based on the empirical content in Chapters 1–6.
The Janus Model: Why Women Experience Disadvantages
Authors: Holter Øystein Gullvåg
Published: November 2022

Why is there an entrenched gender imbalance in the upper echelons of academia, while there is growing gender equality at the lower levels? This chapter investigates the extent to which there may be structural underpinnings to the gender imbalance and presents a model for identifying these structures called the “Janus model” (from the Roman god Janus with two faces). Janus has a friendly face (gender differentiation) and a strict face (gender stratification). The chapter opens with a review of research on gender differentiation and careers, and the background for the Janus model. The starting point is the strong gender differentiation that characterizes academia, especially at the lower levels, while the drop in women and continued numerical male dominance mark the top levels. The model describes how differentiation contributes to stratification at higher levels such that women are in the minority especially at the top. What is at first difference, gradually becomes rank and status. The Janus model shows how accumulation of disadvantage and the Boygen model (Chapter 7) combine with structural conditions. The final part of the chapter looks at criticism of the Janus model, empirical nuance and theoretical development, and links to other new research.
The Triview Model: Three Views of a Problem
Authors: Holter Øystein Gullvåg , Snickare Lotta
Published: November 2022

Everyone knows that the top levels of academia are still often imbalanced, with more men than women. This is commonly described as an absence of women, or a “leaky pipeline” towards the top. But how is this imbalance understood and reflected upon? And what does the understanding of the problem of gender imbalance mean for the overall culture of the organization? This chapter looks at how gender and gendered differences are described and discussed at the University of Oslo’s Faculty of Mathematics and Natural Sciences, extending the social analysis (Chapter 7) and the structural analysis (Chapter 8) in the direction of discourse and cultural analysis, based on the very concrete main issue of the FRONT project: the top-level imbalance. Why is it there? What do faculty staff and students say, about this? Three typical views appear in the FRONT material, and are presented and discussed: first, that the gender imbalance is not a problem, or only a small problem; second, that it is a problem, but mainly a women’s problem, and third, that it is a systemic problem. The chapter includes a historical profile of how these three views have developed and a discussion of how they work to hinder or help gender equality change in the organization.
Una muestra de variación lingüística en el español hablado en Miraflores (Boyacá)
Authors: D'OLivares Durán Nelson
Published: November 2022

El presente artículo es una muestra del corpus del habla de Miraflores (Boyacá), Colombia. Este corpus está compuesto por 18 entrevistas semidirigidas con un tiempo promedio de 40 minutos cada una y fue recogido en 2019 teniendo en cuenta las variables sociales género, nivel de instrucción y edad para su análisis sociolingüístico. Dicho análisis está soportado en el enfoque descriptivo e indaga por los usos del español en la comunidad de habla de Miraflores (Boyacá) en los niveles socio-fónico, socio-sintáctico, socio-léxico y socio-discursivo. La observación de las narraciones señala la riqueza y creatividad en la construcción discursiva del habla real, pues, las variables reconocen la unidad del español, gracias a expresiones metafóricas y procesos cognitivos que favorecen la interacción lingüística, social y contextual de la comunidad de habla de Miraflores (Boyacá).
Consideraciones sobre interdisciplina y multidisciplina a propósito de los Cuidados Paliativos
Authors: Ferraro Juan Manuel
Published: November 2022

Se presentan reflexiones hechas al momento de denominar un conjunto de profesionales diversos dispuestos a trabajar en Cuidados Paliativos. Esta cuestión nos llevó a cuestionar la interdisciplina y la multidisciplina, en razón de sopesar cuáles de esos dos conceptos era más coherente y permitía definir mejor a la práctica hecha. El análisis llevó a notar la confusión conceptual en la definición de tales términos, situación que propicia también los usos indiscriminados de lo uno y de lo otro por parte de los profesionales. Optándose por considerar a ambos como términos que refieren a cuestiones y modos de trabajo diversos, y notándose la especificidad del trabajo en este campo particular que es el de los Cuidados Paliativos –por su multidimensionalidad inherente en juego–, se pasa a tomar la interdisciplina como definición que describe y guía la práctica, y que toma por objetivo la producción de un trabajo asistencial. Resta entonces la pregunta sobre por parte de quién se realiza dicha producción: ¿por parte de una Unidad Interdisciplinaria de Cuidados Paliativos, o por parte de un Equipo? Por el desarrollo propuesto, por considerar que la interdisciplina se funda en la heterogeneidad, y que ésta se pierde en la homogeneidad de la unidad indiscriminada, se concluye que el término que mejor aplica a nuestro caso es el de equipo. Se finaliza planteando un interrogante: ¿puede trabajarse, en Cuidados Paliativos, de otra manera que no sea interdisciplinaria.?
Incidencia del componente práctico de asignaturas del área de la producción porcina en el desarrollo de habilidades y destrezas de los estudiantes de las carreras agropecuarias
Authors: Cobo Argudo Luis Antonio , Comte Saltos Emilio Francisco
Published: November 2022

El objetivo planteado en el presente proyecto, fue demostrar la incidencia del componente práctico en el desarrollo de habilidades y destrezas de los estudiantes, en el conocimiento de los principales parámetros que, demanda un sistema de producción porcina, para la implementación de un módulo piloto de producción. Se utilizó un enfoque metodológico mixto con diseño de investigación no experimental. Las asignaturas evaluadas, tales como, Genética, Nutrición Animal, Reproducción Animal, Construcciones Rurales, Porcinotécnia y Proyectos Agropecuarios tienen competencias que identifican, describen y caracterizan los respectivos objetos de estudios, demandando contar con un Módulo Piloto de Producción Porcina con fines Didácticos. El 80 % de los estudiantes evaluados a través de un test de conocimientos, evidencian un nivel medio de desarrollo de habilidades y destrezas sobre los diversos componentes, estos resultados se evidencian, debido a que se cuenta con un staff de docentes experimentados, sumado a las prácticas de campo que se realizan en planteles porcinos de empresas privadas. Los tipos de prácticas convenientes para elevar el proceso académico, están basados en los métodos descriptivo y comparativo, puesto que contempla asignaturas que, demandan trabajar con especímenes vivos. El Módulo Piloto de Producción Porcina con fines Didácticos de las Carreras Agropecuarias de la UCSG tiene como propósito fundamental, sustentar el proceso académico, sin dejar de lado el fomento a la investigación y la perspectiva de ofrecer asesorías al sector porcicultor en el área de acción.
La enseñanza de la danza jazz: un reto para la formación universitaria en arte
Authors: Durán Vera Silvia María
Published: November 2022

El campo profesional del arte plantea demandas cualitativas que constituyen retos a las Universidades encargadas de la formación en arte. Este es el caso de la Danza Jazz en la Universidad de Especialidades de Espíritu Santo (UEES), que desde el 2009, incorporó esta especialidad en la carrera de danza, y que, a partir de la experiencia pedagógica desarrollada ya cuenta con la experiencia formativa suficiente para disponer de fundamentos científicos revertidos en una didáctica propia, que recoja las buenas prácticas artísticas y docentes acumuladas y no registradas hasta el momento, instrumento que contribuirá a desarrollar un proceso de enseñanza-aprendizaje al nivel cualitativo que respalde el creciente interés que, por este género músico-danzario, se observa en la ciudad de Guayaquil, Ecuador. El presente artículo refiere los avances obtenidos en una investigación en proceso que se propone dotar a esta especialidad académica de un modelo didáctico científicamente fundamentado a partir de detectar sus insuficiencias o debilidades, para trazar sus estrategias generales de desarrollo.
Fundamentos tecnológicos para la formación virtual
Authors: Gil Mateos Jorge , García Martínez Andrés
Published: November 2022

El presente artículo propone algunos fundamentos tecnológicos para la formación universitaria virtual en condiciones de semipresencialidad. El trabajo está motivado por la necesidad de vincular a la comunidad docente universitaria, usualmente docentes presenciales, con un acervo teórico tecnológico suficiente sobre el uso de la virtualidad como alternativa de formación. Proponer y analizar los fundamentos de determinado proceso es una tarea difícil de lograr con total exactitud, pues en dependencia de lo que se necesite potenciar o de lo que se vaya a abordar, se podrán escoger unos u otros fundamentos. En el caso que nos ocupa consideramos que hay cinco presupuestos claves sobre los que se apoya la formación universitaria en condiciones de semipresencialidad, a saber: las redes de aprendizaje, la composición de un sistema de e-learning o teleformación, los entornos personalizados de aprendizaje, los nuevos medios, y el diseño instruccional.Estos fundamentos no implican una relación de requerimientos técnicos específicos, sino que constituyen líneas de desarrollo teórico y con amplio alcance práctico. Se intenta caracterizar a cada uno de estos fundamentos, de manera que quede lo suficientemente bien esclarecido el por qué estos son los escogidos, y no otros.
Vitamin D Status and its Relation to Obesity in Adolescent Schoolgirls in Kolkata- An Epidemiological Pilot Study
Authors: Goswami Soumik
Published: November 2022

Context: Due to lack of adequate sunlight exposure, children and adolescents, particularly girls are at risk of developing Vitamin D deficiency with subsequent health consequences. Obesity, which is increasing in prevalence due to sedentary habits, is also associated with Vitamin D deficiency. However, Indian data on Vitamin D status of adolescent girls with reference to obesity is lacking. Objective: To study the prevalence of Vitamin D deficiency and to find its association with body composition and obesity parameters in adolescent schoolgirls in Kolkata. Methods: Cross-sectional, observational, single centre study. 160 adolescent schoolgirls (10-18 years) with no known illness were assessed for weight, height, body mass index (BMI), waist hip ratio (WHR), visceral fat content (VFC) and serum 25(OH) D level Results: Mean serum 25(OH) D level was 18.7±12.1 ng/ml. 77% were Vitamin D deficient (<20ng/ml) and 13% had vitamin D insufficiency (21-29 ng/ml). In Spearman’s coefficient test BMI was positively correlated with serum 25(OH) D level (r=0.165, p=0.037), negatively correlated with WHR (r=-0.329, p=0.0008) but no significant correlation was found with VFC (r=-0.055, p=0.491). Linear regression analysis also revealed significant negative correlation of serum 25(OH) D with WHR (coefficient -48.902, p=0.0002, 95%CI -73.977±-23.827). Receiver operating characteristic ROC) curve analysis showed WHR cut off 0.92 having 78.9% accuracy in predicting serum 25(OH) D level of 20 ng/ml, with 75.6% sensitivity and 32.8% specificity. Conclusion: Vitamin D deficiency is highly prevalent in adolescent schoolgirls in Kolkata. In this group, obesity is inversely correlated with Vitamin D status with waist hip ratio being a strong negative predictor of Vitamin D status.
Meteorological Data Analysis of Temperature and Rainfall in the case of Southern Ethiopia (Western Guji, Guji, and Borana zone from 1988-2018)
Authors: Daba Gutem Belay
Published: November 2022

This research studied meteorological data analysis of temperature and rainfall of Southern Ethiopia specifically Borana, West Guji, and Guji zone starting from 1988-to 2018. The study’s main concern on analysis of nature, trends, and rate of temperature and rainfall change, and lastly focuses on the effect of climate change on crops and livestock. The researchers employed a descriptive research design and both quantitative and qualitative approaches. The researchers employed MicroSoft Excel (Window 13), SPSS-21 version software, application of the Mann–Kendall test, and Sen's methods. The finding of this research was the temperature of all stations/zones of the study area was increased. The average temperature of moyale, Yabello, Bule Hora and Nagele is 23.47°C, 21.40°C, 19.20°C, and 17.41°C respectively and the smallest variation is observed in Bule Hora. The rainfall of the study area in all stations with the exception of Bule Hora, declined and the amount of average rainfall of Negele is much higher than others and followed by Bule Hora and the smallest rainfall was registered in Moyale. The average rainfall of Negele was 114mm, Bule Hora 80.98mm, Yabelo49.50mm and Moyale 44.89mm. The other finding of this research was crop and livestock of the study area where negatively affected. The researchers recommended-communities unity including government, private, NGO have a responsibility to minimize the effect of this climate change in the study area specifically and all developed and developing countries must come together to reduce change in climate and its negative effect in general.
Processed Wood Products Trade in Ethiopia; In Case of Paper and Paper Products Trade
Authors: Lemi Tamiru
Published: November 2022

Paper and paper products were one of the most imported processed wood products at different times of the years. Ethiopia has spent a huge amount of foreign currency to import paper and paper products. However, the income gained from the export of paper and paper products was very small and caused a trade deficit. This trade deficit has an impact on the economy of the country. However, the information on the status of the paper and paper product import-export in Ethiopia is lacking. The objective of this study was, therefore, to assess the status and trend of imported and exported paper and paper products between 1997 and 2016. To achieve the objective, the raw data on the international trade of paper and paper products in the period between 1997 and 2016 were collected from Ethiopia Revenue and Customs Authority (ECRA). Data were analyzed by SPSS version 16.0. The result indicated that on average Ethiopia spent US$ 29.85 million/year to import 23700 Tones/year of paper and paper products. The trend of total expenses to import different paper and paper products into Ethiopia and while, the quantities of paper and paper products imported between 1997 and 2016, has been grown by 12.6% and 8.7% yearly, respectively. Thus, Ethiopia spent a large amount of money to import paper and paper products than the money earned by exporting paper and paper products.
Phytoplankton Composition and Abundance in Mbiakong River, Cross River Estuary, Niger Delta, Nigeria
Authors: Asuquo Gwendoline
Published: November 2022

The phytoplankton composition and abundance in Mbiakong River, Cross river estuary, Niger Delta, Nigeria was studied for a period of one year (March, 2021-February, 2022). Plankton net of mesh size 55µm was used to collect plankton samples from below the water surface, after towing for 5 minutes. The content was emptied into plastic containers and fixed immediately with 4% formalin in the field for preservation. After 48hrs in the laboratory, the preserved plankton samples were concentrated to 10 ml. The concentrated sample was agitated to homogenize before pipetting 1ml sub sample with sample pipette. Enumeration and identification were performed using a zeis inverted microscope at x400 and x 1000 magnification. Species identification was done using recommended keys and guides. A total of six hundred and fifteen (615) individual organisms comprising of thirty-five (35) species belonging to five (5) taxonomic groups were recorded from Mbiakong River. The most abundant group was the Bacillariophyceae which was represented by 12 species (302 organisms) consisting of 49.11%. This was followed by Chlorophyceae represented by 10 species (199 organisms) consisting of 32.36%, Cyanophyceae represented by 12 species (109 organisms) consisting of 17.72%, Euglenophyceae represented by 1 species (3 organisms) consisting of 0.33% and the least abundant was the Dinophyceae represented by 1 species (2 organisms) consisting of 0.14%. The study revealed that species composition and abundance was high in June.
Dynamic of Phosphorus in Soils Fertilized with different Phosphorus Sources and Phosphorus Acquisition by Lotus Corniculatus
Authors: Quintero Cesar Eugenio
Published: November 2022

The dynamic of the reaction between a clayey and sandy soil and three P-sources differing in P-solubility was study in a greenhouse experiment were Lotus corniculatus was cultivated and harvested several times during 287 days. The absorbed P by the plants with time was interpreted by an equation representing the P already present, added P, extracted P and the retained P even after the extraction by a soil-P test. The dry yield and P uptake differed between soils and for each soil among P-sources. In the clayey soil there was little difference with time between the two water soluble P-sources, both dry yield and P uptake, but in the sandy soil P uptake was significantly higher for poultry litter compared with triple superphosphate. Dry yield and P uptake were lower for phosphate rock with respect to both water soluble P-sources. In the clayey soil P uptake from the three P-sources with was mainly interpreted by the decrease of both the extracted and retained P, whereas in the sandy soil and for phosphate rock addition P uptake was described by the decrease of the retained P meanwhile extracted P was constant with time. Native P had little influence in both soil for all P-sources.
Can the Photobiomodulation Improve Osseointegration? A Literature Review
Authors: de Lima Luna Cássia Alves
Published: November 2022

This study discussed the characteristics of photobiomodulation modalities using low-level laser and light-emitting diodes and their therapeutic effects on post-implant osseointegration, through an integrative literature review. The methodology consists of a guided search in Portuguese and English from 2001 to 2020 through texts in Google Scholar, PubMed and Scielo databases. Results: The technique of osseointegrated implants within implantology has made great advances possible by favoring the restoration of dental function and aesthetics in total and partial edentulous individuals. This type of implant is successful when the phenomenon of osseointegration occurs, a complex process that depends on several local and systemic circumstances for stability and durability of the implant. In this sense, the use of photobiomodulation in Implant Dentistry can promote speed in the osseointegration process and, consequently, establish better conditions in the postoperative period. Final Considerations: Although several authors present satisfactory results in both photobiomodulation modalities, mainly acceleration of the initial phases of osseointegration, more research in this area should be carried out so that this relationship is better clarified.
Conservative Management of Large Trauma-Related Periapical Lesion: Case Report
Authors: Omar Al-Ostwani Alaa Eddin
Published: November 2022

Dental trauma is a serious health problem affecting the teeth and the general health as well. Sometimes, the traumatized tooth may end up with vitality loss. The possible consequences of pulp necrosis could be osteolytic lesions and radicular cysts. This case study reported a successful conservative non-surgical endodontic management of a massive trauma-related periapical lesion in a child 13-year-old.
Dental Arch Parameters and Goslon Scores in Mixed Dentition of Egyptian Children with Surgically Repaired Unilateral Cleft Lip and Palate
Authors: Mohamed Baraka Marwa
Published: November 2022

Introduction: Various forms of malocclusion are usually encountered in non-syndromic cleft lip and palate, mostly affecting maxillary dental arch. Objective: To assess the dental arch parameters in surgically treated unilateral cleft lip and palate Egyptian children with mixed dentition and compare them with those of comparable healthy non-cleft children. Material and Methods: Comparative cross-sectional study design was used. Twenty-six non-syndromic children with repaired unilateral cleft lip and palate (UCLP), aged 6-9 years, were compared to twenty-six healthy non-cleft children (control group) recruited from Faculty of Dentistry, Alexandria University. Both groups were divided into two age groups; 6-7 years and 8-9 years. For each subject, dental arch parameters were measured using dental study models. Results: Mean maxillary arch depth and inter-canine arch width were significantly smaller in UCLP children than in non-cleft children in the age groups 6-7 and 8-9 years. Mean inter-molar arch width was not significantly narrower in UCLP children than in non-cleft children. Mean mandibular arch dimensions of UCLP children did not differ significantly from those of non-cleft children. The mean Goslon Yardstick score was 3. Conclusion: Children with UCLP, aged 6-9 year old, had significant reduction in mean maxillary arch dimensions compared to healthy matching non-cleft children except for inter-molar arch width which showed no significant reduction. The average dental arch relationship in surgically-repaired UCLP children was fair according to Goslon Yardstick index.
Maspin Expression in Salivary Mucoepidermoid Carcinoma: Auclair vs. Brandwein Grading System
Authors: I Ahmed Omar
Published: November 2022

Purpose: Maspin is a member of serpin (serine protease inhibitor) family, and is known to have tumor-suppressor function. Maspin has been reported to play a critical role in processes relevant to tumor growth and metastasis such as cell invasion, angiogenesis, and apoptosis. The aim of this study is to evaluate immunohistochemical expression of maspin and its correlation to histologic grade of salivary mucoepidermoid carcinoma. Materials and Methods: A total of 22 formalin-fixed, paraffin-embedded specimens of mucoepidermoid carcinoma were prepared for immunohistochemical staining with maspin antibodies. Maspin immunoreactivity was evaluated by calculating the proportion of positively-stained tumor cells present in 5 high-power fields. Results: All cases were expressed maspin with variable cellular localization. No significant correlation was found between maspin expression and clinicopathologic features such as patient’s age, gender, tumor site, clinical stage and lymph node metastasis (p> 0.05), whereas maspin expression showed a statistically significant correlation with grade of tumors classified in regard to Auclair system (p= 0.011), compared to that evaluated by Brandwein system (p= 0.155). Conclusion: Salivary mucoepidermoid carcinoma showed maspin immunoreactivity with variable levels and cellular localization. Maspin is a valuable biomarker to predict the prognosis of salivary mucoepidermoid carcinoma.
Systematic Review-Adverse Effects of Silver Diamine Fluoride
Authors: Nanda Shubha
Published: November 2022

Purpose: To conduct a systematic review of the literature regarding the possible adverse systemic and oral effects of silver diamine fluoride (SDF) when used as a therapeutic agent for arresting caries in deciduous and permanent teeth in children and adolescents. Methods: A digital search of the adverse effects of SDF was conducted on November 25,2020 without date of publication restraints. The data was updated in February 2022 with no additional significant findings. The search was conducted using PubMed, Scopus, Cochrane Library via Wiley, EMBASE, LILACS, Biological Science Index, OpenGrey, Grey Literature Report, Dissertations and Theses, ClinicalTrials.gov, and International Clinical Trials Registry Platform. Results: The initial digital and manual systematic literature search found a total of 493 articles; after the removal of duplicates and other publications, a total of 6 publications were included in this systematic review: 3 randomized controlled trials, 2 clinical trials, and 1 ex-vivo study. SDF application was accompanied by black staining of the tooth in all six studies. There were no reports that SDF caused serious systemic illness or oral injury based on this systematic review.
Geriatric Dental Management and Education Due to the Covid-19 Crisis; Challenges and Solutions
Authors: Ghods Kimia
Published: November 2022

Objectives: Physical and mental disabilities, the existence of financial restrictions, insufficient familial support, transportation problems, and confined access to dental services can have harmful effects on the oral health and overall quality of life of the elderly. Moreover, the incidence of the Covid-19 epidemic has created an additional concern in providing appropriate dental care. Therefore, in this article, geriatric dental education and management due to the Covid-19 pandemic in both developing and developed countries are precisely discussed and compared. Methods: A complete query was carried out on PubMed, PubMed Central, Medline, EBSCO, Google Scholar, and Embase databases, and the studies published during 2010-2022 were collected using the keywords "Geriatric Dentistry," "Covid-19," "Education," "Artificial Intelligence," and "Mobile Dentistry." Ultimately, 41 relevant articles and 2 textbooks were selected and evaluated. Results: The existing crisis can be properly managed by preparing an accurate curriculum emphasizing practical preventive care and effective communication skills, holding domestic or international conferences for dental students, organizing mandatory practical dental courses in nursing homes, and evolving new theories including artificial intelligence and mobile dentistry. Conclusion: It is essential to have a multidisciplinary approach including dentistry, medicine, education, engineering, and legislation to achieve the best treatment plan for the elderly
Tindak Tutur Ekspresif Humanis dalam Interaksi Pembelajaran
Authors: Handayani Eva Nur , Ismiyatin Laela , Setiyowati Desti
Published: November 2022

Tujuan penelitian ini adalah menerapkan bentuk dan fungsi tindak tutur ekspresif humanis, karakteristik tindak tutur ekspresif humanis dalam interaksi pembelajaran. Subjek penelitian ini meliputi siswa kelas X di SMK Muhammadiyah 4 Surakarta. Data dianalisis dengan menggunakan metode padan pragmatis dengan teknik dasar pilah unsur penentu untuk mengklasifikasi jenis, bentuk dan fungsi, serta karakteristik tindak tutur ekspresif humanis dalam interaksi pembelajaran. Hasil penelitian, bentuk tindak tutur langsung terdapat modus imperatif, modus interogatif, dan modus deklaratif. Tindak tutur tidak langsung   terdapat   modus   Deklaratif-Imperatif,   Modus   Interogatif-Imperatif. Fungsi tindak tutur ekspresif humanis lebih mengacu pada tuturan pujian, kritikan dan saran, serta ucapan terima kasih.
Membentuk Karakter dan Disiplin Siswa melalui Pembinaan Apel Pagi
Authors: Masruroh Aini , Medika Novita , Kristiawati Henri
Published: November 2022

Penelitian ini bertujuan untuk menjelaskan mengenai pembentukan karakter dan budi pekerti pada siswa melalui kegiatan apel rutin setiap pagi dan keefektifannya dalam mewujudkan karakter dan budi pekerti luhur yang baik pada siswa di SMK Negeri 6 Sukoharjo. Tipe penelitian yang digunakan adalah penelitian kualitatif dengan metode deskriptif kualitatif. Data yang ada didalam penelitian ini diperoleh melalui kegiatan observasi dan wawancara. Subyek dalam penelitian ini adalah siswa-siswi dan guru yang ada di SMK Negeri 6 Sukoharjo. Berdasarkan penelitian yang dilakukan diperoleh hasil bahwa kegiatan apel rutin setiap pagi di SMK Negeri 6 Sukoharjo  dapat digunakan sebagai sarana dan jalan yang efektif untuk membentuk dan menanamkan karakter serta budi pekerti yang baik pada anak seperti sikap disiplin, bertanggung jawab, sopan santun, nasionalisme serta saling menghargai terhadap sesama siswa dan menghormati kepada guru maupun temannya.
Standarisasi Pengelolaan Laboratorium IPA Biologi
Authors: Rahayu Prasetyana , Pramesti Kusuma Dewi Dita , Ismail Maulana Hafidz
Published: November 2022

Penelitian ini bertujuan untuk mengetahui pengelolaan laboratorium di SMP Muhammdiyah 8 Surakarta berdasarkan Standard Operational Procedure. Pengumpulan data dengan metode deskriptif kualitatif. Berdasarkan hasil pengamatan  laboratorium  menunjukkan  bahwa  laboratorium  SMP Muhammadiyah 8 Surakarta belum semua aspek memenuhi Standard Operational Procedure (SOP) yaitu pada aspek perencanaan dan pengadministrasian sudah memenuhi standar. Sedangkan pada aspek penataan, pengamanan, pengawasan dan perawatan belum memenuhi Standar prosedur.
Implementasi Pendidikan Karakter Religius pada Siswa melalui Kegiatan Tahsin Tahfidzul Quran dengan Metode Tsaqifa
Authors: Amir Muhammad
Published: November 2022

Penelitian ini bertujuan mendeskripsikan (1) Penerapan kegiatan tahsin tahfidzul quran dengan metode tsaqifa dalam pembelajaran Alquran di SMK Muhammadiyah 3 Surakarta. (2) Faktor pendukung dan penghambat penerapan metode tsaqifa, serta (3) Hasil dalam kegiatan tahsin dan tahfidzul quran menggunakan metode tsaqifa. Metode penelitian yang digunakan adalah deskriptif kualitatif. Sumber data dalam penelitian ini adalah guru, siswa, dan proses pembelajaran mata pelajaran   Alquran   di   SMK   Muhammadiyah   3   Surakarta.   Objek penelitian ini adalah hasil dari metode pengajaran  yang digunakan guru dalam pembelajaran Alquran. Pengumpulan data menggunakan teknik wawancara, observasi, dan dokumentasi. Implementasi metode tahsin dan tahfidzul qurna dengan metode tsaqifa dalam pembelajaran membaca Alquran disesuaikan dengan tingkat bacaan siswa dan tetap menggunakan strategi dan metode pembelajaran. Strategi pembelajaran yang dimaksud adalah secara individual, baca simak, tutor sebaya dengan  menggunakan    metode  tsaqifa,  adalah metode ini  dirancang khusus  untuk  orang  yang  belum  pernah  belajar  Alquran  atau  yang pernah belajar tetapi masih terbata-bata bacaannya. Faktor penghambat yaitu masih banyaknya kemampuan bacaan Alquran masih terbata-bata, kurangnya ketertarikan untuk belajar Alquran, dan kurangnya sarana prasarana. Faktor pendukung yaitu faktor internal adalah faktor yang muncul  dari  pribadi  siswa sendiri,  dan  faktor  eksternal  yaitu  faktor keluarga, institusional, dan lingkungan sekolah. Untuk mengatasi setiap permasalahan atau faktor penghambat tersebut masih dikaji untuk ditemukan solusi yang tepat. Pengkajian dilakukan melalui monitoring dan evaluasi yang dilakukan oleh Guru Pendidikan Agama Islam dan Pimpinan atau Kepala Sekolah.
KEGIATAN LITERASI SEBAGAI UPAYA MENINGKATAN MINAT DAN KEMAMPUAN BERBAHASA SISWA KELAS 1 SD MUHAMMADIYAH PLUS MALANGJIWAN
Authors: Nur Pratiwi Anggitya , Prasetyo Dedi , Arifuddin Irfan , Alfiani Ikhma , Faridah Azahra Ayu , Destiana Sari Mila , Intan P Hasdiah , Setia L Kristika , Wahyuningtyas Diyah , Ramadhanti Suci
Published: November 2022

Gerakan Literasi Sekolah merupakan sebuah gerakan dalam upaya menumbuhkan budi pekerti siswa yang bertujuan agar siswa memiliki budaya membaca dan menulis sehingga tercipta pernbelajaran sepanjang hayat.  Penelitian ini bertujuan untuk mengetahui minat kemampuan berbahasa siswa kelas 1 melalui kegiatan literasi di SD Muhamamdiyah Plus Malangjiwan.. Metode penelitian yang digunakan adalah metode penelitian deskriptif kualitatif. Data bersumber dari kepala sekolah, guru dan siswa yang diperoleh dengan teknik observasi, wawancara, dan dokumentasi.
Video Critic dalam Pembelajaran Aqidah pada Siswa Kelas IX di SMP Muhammadiyah 7 Surakarta
Authors: Dhaniayainil Annidya Eva , Widyaningrum Widyaningrum , Maassita Ria Ayu
Published: November 2022

Penelitian ini bertujuan mendeskripsikan implementasi video critic dalam pembelajaran aqidah siswa kelas IX di SMP Muhamamdiyah 7 Surakarta. Metode penelitian yang digunakan yakni penelitian kualitatif. Hasil penelitian ini menunjukkan bahwa implementasi strategi video critic harus mempersiapkan video sesuai materi, media dan alat, serta mengatur waktu. Respon siswa terhadap pembelajaran sangat beragam, siswa merasa pembelajaran menyenangkan dan mudah dipahami. Siswa mampu berpikir abstrak terjadinya hari akhir, sesuai Teori Piaget proses belajar seseorang mengikuti pola dan tahap perkembangannya sesuai dengan umur, mampu menarik kesimpulan, dan mengembangkan hipotesis. Kesulitannya yaitu membutuhkan persiapan yang matang dalam pelaksanaanya, menyiapkan dan memilih video, memastikan media dan alat dalam kondisi baik, mengatur waktu sebaik mungkin. Keberhasilan dapat dilihat melalui hasil analisis yang siswa sampaikan dan evaluasi soal di buku pembelajaran.