bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of Teachers’ Qualification on Secondary School History Teaching and Learning in Kajara County, South Western Uganda
Authors: Mugoya Peter , Muleke Paul , Mwangu Alex
Published: June 2022

The study examined how teachers’ qualification impact on the teaching and learning of history in senior four of Kajara County, Ntungamo District. The study sought to establish how communication skills affect the teaching and learning of senior four history class in Kajara County, Ntungmo District, find out how teachers’ explanation skills affect the teaching and learning of senior four history class in Kajara County, Ntungamo District and establish how writing skills affect the teaching and learning of senior four class in Kajara County, Ntungamo District. The study employed a cross sectional survey design with both qualitative and quantitative approaches of data collection and analysis. Interviews, focus group discussions, documentary analysis and questionnaire were used to collect data. The study population consisted of secondary school administrators, history teachers and students in selected private and government schools in Kajara County, Ntungamo District. A sample size of 251 was used. Qualitative data was analyzed with the help of social science (SPSS) while qualitative data was analyzed using content analysis. Findings revealed that teachers with good communication skills facilitate effective teaching and learning of history to secondary students in Kajara County, Ntungamo District facilitated by audibility, effective teacher-student rapport and improved student presentation skills. It was established that teachers with good explanation skills facilitate effective teaching and learning of history to secondary school students. Teachers with clear history instruction involved learners in history lesson activities effectively. The study concluded that teachers’ communication skills, explanation skills and writing skills have negligible influence on effective teaching of history to secondary school students in Kajara County, Ntungamo District. It is recommended that government and other stakeholders should come up with Continuous Teacher Development Programs and in-service programs to raise teacher’s communication skills explanation skills and writing skills to patch up the gaps in the teaching and learning of history to secondary students in Kajara County, Ntugamo District.
Framework to Enhance STEM Education for Community College Students
Authors: Zeid Abe , Duggan Claire
Published: June 2022

Community colleges (CCs) play a critical role in advancing the education of all learners. Approximately 40% of first-time college freshman begin in Community Colleges. The proposed framework seeks to support and excite CC students to persist in their STEM education to increase the pipeline for the STEM workforce. Its vision is to provide CC students engineering skills and to excite them about engineering research. The framework enables students to spend 10 summer weeks at Northeastern University to increase skills, confidence, and learn firsthand about research. Each student will join a research lab, working with faculty and graduate student mentors. Also, students will be mentored after summer to further support their successful graduation and/or transfer to a 4-year institution and beyond. The site is guided by two of the grand challenges of the National Academy of Engineering: personalized learning and scientific discovery. Unique aspects of the proposed framework include: a hands-on short course in engineering topics and software tools; formal mentor training including modules for mentoring CC students; daily student meetings with mentors; extensive professional development seminars; formal research training including daily reflection journals, poster presentations and technical writing with a faculty member; and recruitment from a unique pool of highly talented URM students.
The Effects of Substituting Soybean Meal, Wheat Flour and Cassava Flour with Groundnut Cake, Poultry By-product Meal, Brewery Waste and Rice Bran on Growth and Body Composition of Tilapia Fry
Authors: Jatta Saloum , Fall Jean , Diouf Malick , Viet Dung Le , Sheen Shyn Shin
Published: June 2022

An 8-week feeding trial was conducted to evaluate the effects of replacing soybean meal, wheat flour and cassava flour with groundnut cake, poultry by-product meal, brewery waste and rice bran on the growth and body composition of Oreochromis niloticus fry at 3.77 g initial mean weight. Four iso-nitrogenous (35 % CP) experimental diets (1 control, 3 substituted) were prepared and administered. Control diet (Diet 1) has fishmeal, soybean meal, wheat flour, cassava flour and a blend of palm oil and fish oil as macro-ingredients. Soybean meal, wheat flour and cassava flour in the control diet were replaced with groundnut cake, brewery waste, rice bran to form Diet 2. Those three ingredients in the control diet were replaced with poultry by-product meal, brewery waste and rice bran to form Diet 3. Finally, Diet 4 was formulated with a combination of groundnut cake and poultry by-product meal, brewery waste and rice bran to replace the three ingredients above. Value-wise, the best growth performances were observed from the fish fed on Diet 3 but there were no significant differences among all the treatments. Generally, the substitution of soybean meal, wheat flour and cassava flour with groundnut cake, poultry by-product meal, rice bran and brewery waste have no major effect on the body composition of the fish. Meanwhile, the substitution has a positive effect with respect to feed cost in producing a kilogram of feed and a kilogram of fish. The authors suggested that the substitution of soybean meal, wheat flour and cassava flour with groundnut cake or poultry by-product meal or the combination of groundnut cake and poultry by-product meal, brewery waste and rice bran is more cost-effective and economical for Nile tilapia farming.
Biocidal Action of Chromolaena odorata Extract on Ganoderma lucidum and Sclerotium rolfsii
Authors: Majekobaje Adelodun R. , Adeyemo Segun M. , Ogunsanwo Olukayode Y.
Published: June 2022

Fungi pose a serious threat to wood in service causing significant economic loss every year. In this study, Chromolaena odorata extract was investigated for its fungicide properties against Ganoderma lucidum and Sclerotium rolfsii. An ethanol-solvent system was used to remove the extract from ground leaves of C. odorata. Samples of Pinus caribaea wood from the base, middle, and top along the tree bole were soaked in five different concentrations (0%, 10%, 20%, 30%, and 40%) of C. odorata for three days, and preservative absorption and retention were determined. The treated woodblocks were exposed to actively growing cultures of wood-attacking fungi under laboratory conditions (27 °C and 65% RH) for 24 weeks. The range of weight loss of the untreated wood samples on exposure to both fungi showed that the wood is moderately resistant to fungal attack. However, the highest weight loss which was obtained in the control wood samples showed that C. odorata extract is effective in imparting some level of fungi resistance to the wood, and the optimal concentration level, based on this research is 30%.
High Maternal Cortisol Serum Levels as A Risk Factor for Preterm Labor
Authors: Agung Suwardewa Tjokorda Gde , Negara Ketut Surya , Putra I Gede Mega , Artana Putra I Wayan , Pangkahila Evert Solomon , Maesa Putra I Gede Bagus Garjita
Published: June 2022

Preterm delivery is the leading cause of death for children under 5 years of age worldwide. Preterm delivery is one of the significant factors causing neonatal death due to complications associated with preterm birth. Complications of preterm delivery account for about 16% of all deaths in children under 5 years, and 35% of total deaths of newborns. There are several broad outlines of factors associated with preterm labor, including stress, inflammation or infection, overdistention of the uterus and the hypothalamic-pituitary-adrenal axis. Several studies show the role of cortisol caused by these factors. This study aimed to assess the relationship of maternal serum cortisol levels with the risk of preterm delivery. This study used a case-control design conducted at Sanglah Hospital, Denpasar from May to August 2021. A sample of 50 women was obtained which was divided into case groups and control groups. Serum cortisol examination used a 3 mL blood sample which was then examined using the ELISA method at the Integrated Biomedical Laboratory, Faculty of Medicine, Udayana University. The results were analyzed using the chi square test. There was no significant difference in the characteristics of the two groups. There was a significant relationship between high serum cortisol levels and the incidence of preterm labor in pregnant women (p < 0.001; 95% CI; 2.768-38.22; OR 10.29). High cortisol serum levels can increase the risk of preterm labor 10 times in pregnant women when compared to pregnant women with low cortisol blood serum levels.
The Use of Telemedicine in The Development of Professionalism in Areas of Obstetrics and Gynecology in Indonesia
Authors: Winata I Gde Sastra , Adiguna Dira I Gede Mahendra
Published: June 2022

The utilization of medical information sent from one site to another via electronic communications to improve a patient's clinical health state is known as telemedicine. Indonesia is made up of several islands, and not every location has the same level of medical care. Therefore, telemedicine has considerable potential as an alternative in medical practice moreover in Obstetrics and Gynecology area, which need some routine and comparative approaches. In obstetrics and gynecology, telemedicine has been used for prenatal care, obstetric psychiatry, and monitoring chronic disease during pregnancy. Telemedicine brings many advantages and disadvantages to both patients and health professionals. Telemedicine can provide the basis for decision-making, encouraging patients, and promoting self-help once patients have gained such understanding. Therefore, the development of telemedicine in Indonesia.
Understanding Precipitate Growth Kinetics at Ultra-High Hydrostatic Pressures
Authors: Cao Siyua , Weerasekera Naveen , Shingdan Dawa Ram , Abdulla Ahmed Ijaz
Published: June 2022

In this work, we have studied the precipitate growth behavior of a metal matrix when subjected to hydrostatic pressure. We utilized Zenner-Frank phase field kinetics with integrated free energy density functional based on volumetric strain energy. We studied the precipitate growth up to 2 GPa under varying bulk modulus of the precipitate phase. We observed that subjecting to hydrostatic pressure influences the growth kinetics by reducing the precipitate growth under time evolution. In addition, the bulk modulus of the precipitate has shown an abnormality in the growth behavior compared to general observations under hydrostatic pressure. This work contributes to the smart tailoring of novel materials to reduce detrimental impacts on holistic material properties, used in large hydrostatic pressure applications.
The Cosmic Black Hole as a Solution of the Relativistic Quantum Mechanical DIRAC Equation
Authors: Vegt Wim
Published: June 2022

For many physicists, Albert Einstein’s Theory of General Relativity is the top of Physics. A whole new concept, based on a flexible Space-Time Continuum. A wonderful New and Original insight in the Origins of Space and Time. But nowadays physics requires more than a fundamental theory about Space and Time.

The Mathematical foundation for a “Quantum Mechanical Model of the Black Hole” is based on a 10-dimensional Space-Time Continuum.  This article has been written in projections of a 10-Dimensional Space-Time Continuum within an easier to understand 4-Dimensional Space-Time Continuum. For that reason, this theory will not start with “Einstein’s famous Field Equations”,  but the start will be at a very fundamental concept in Physics. Isaac Newton’s 3rd law as a fundament in Classical-  and Quantum Mechanics.

To make the theory of the “Quantum Mechanical Model of the Black Hole” as much understandable as possible, this article starts with a short comprehension of the theory.
Gandhi: The Non-Violent Socialist is Trusteeship the Only Viable Sustainable Economic Model?
Authors: Vidaković Mina
Published: June 2022

Fighting against inequality and discrimination, Gandhi developed his famous non-violent resistance, first in South Africa, and then later on in India, in the fight for independence. However, non-violence was not only his “experimented truth”, but also an essential requirement in the socio-economic arena. According to Gandhi, economic equality was not to be achieved through violence or revolution, as communists suggested. Rather, a peaceful shift in people’s self-transformation, and the construction of Swaraj and Swadeshi were desirable in order to make a true socialist India, in a Gandhian sense. On the other hand, Gandhi’s theory of trusteeship has made a comeback in the 21st century along with a continuous discussion on sustainable development.
This paper critically reviews and discusses Gandhi’s conception of Trusteeship and its worth as a sustainable and equitable mode of production. How does Gandhi’s trusteeship model put emphasis on the decentralization of power and sustainability? How is it still relevant in the late modern world? What kind of impact can this model of trusteeship have on the current problems of climate change and sustainability? Does corporate social responsibility partially realize this Gandhian model of economic production? Observing corporate social responsibility in the light of Tata Group and its obligations and accountability for effects on society, a new framework is formed supporting Gandhi’s model of trusteeship, which, as observed nowadays, is starting to have a global appeal.
A comparative Life Cycle Assessment between recycled aggregate and natural aggregate
Authors: Suárez Silgado Sindy Sofía , Roca Ramón Xavier , Calderón Valdiviezo Lucrecia
Published: June 2022

The construction industry consumes many natural resources and generates a large amount of waste in the environment, in all phases of the life cycle. For this reason, the use of recycled material is increasingly being encouraged, instead of original raw material for the production of new materials that contribute to closing the materials cycle.

The objective of this study was to evaluate and compare the environmental impacts of obtaining natural aggregate and recycled aggregate, taking Spain as a case study. Life cycle assessment (LCA) and the IMPACT 2002+ method were used to calculate the environmental impacts. To carry out the inventory, primary information was obtained and subsequently complemented and compared with the Ecoinvent v2.2 database.

The results of this study show that the obtaining of natural aggregate has environmental impacts on all the evaluated categories. Recycled aggregate from reinforced concrete has impacts on the carcinogenic and non-carcinogenic effects category. However, it results in significant savings in the other categories. Recycling aggregate on the construction site resulted in higher savings in most categories than recycling aggregate at the plant.
Análisis y perspectivas del tratamiento anaerobio y el aprovechamiento de lodos biológicos en América Latina
Authors: Pulgarin Muñoz Carlos Esteven , Saldarriaga Molina Julio César , Correa Ochoa Mauricio Andres
Published: June 2022

Los lodos biológicos son residuos generados en las plantas de tratamiento de agua residual (PTAR), como consecuencia de la sedimentación de material suspendido en las unidades primarias y por el crecimiento de la biomasa en el tratamiento biológico. Estos lodos representan una generación que alcanza cifras de 1.400 t/día en Canadá, 2.000 t/día en Estados Unidos de Norte América, 1.753 t/día en México, 1.232 t/día en Brasil entre otros, con un crecimiento esperado del 60% para el 2050. Históricamente, este tipo de sólidos, han sido dispuestos en rellenos sanitarios contribuyendo con los impactos ambientales, sociales y económicos relacionados con la gestión de residuos; sin embargo, en las últimas décadas y a nivel global se ha propuesto la aplicación de la digestión anaerobia (DA) como alternativa para el tratamiento y aprovechamiento de residuos orgánicos, dado su fácil operación, valor económico y por la posibilidad de obtener subproductos como biogás y abono. En los países latinoamericanos esta situación no es particularmente diferente, donde algunas investigaciones han centrado sus esfuerzos en estudiar las diferentes variables que tienen relación con la digestión anaerobia. En el presente artículo de revisión bibliográfica se analizaron 56 trabajos de investigación relacionados con procesos de co-digestión anaerobia, pretratamiento, modelos matemáticos, microorganismos, parámetros de operación y evaluación económica; donde, si bien se evidencia un avance importante en relación con la temática, se requiere de mayores esfuerzos que permitan la comprensión y ajuste de los diferentes parámetros, especialmente, en escalas piloto y real, posibilitando su implementación en la gestión de residuos.
Modelamiento del salto del inverso de la resistencia del electrolito sólido NaI-AgI
Authors: Peña Lara Diego , Correa Gallego Hernando , Suescún Diaz Daniel
Published: June 2022

Midiendo la resistencia eléctrica del electrolito sólido NaI-AgI, se mostró que al adicionar NaI al AgI se estabiliza la transición de la fase conductora iónica (β-AgI) a la fase superiónica (α-AgI) a 420 K al incrementar la temperatura. La conductividad iónica en la transición β → α del AgI aumenta varios órdenes de magnitud. Para simular esta transición, se consideró un modelo fenomenológico basado en una densidad de energía libre, siendo la concentración de defectos en equilibrio (n) el parámetro de orden e interpretando éste como el inverso de la resistencia R. Los datos experimentales se ajustaron muy bien al modelo propuesto.
A conceptual framework for integrating Facility Layout and Production Scheduling in Flowshop Manufacturing Cells decisions
Authors: Cáceres-Gelvez Sebastian , Arango-Serna Martín Darío , Zapata-Cortés Julián Andrés
Published: June 2022

Objective: In this paper, a conceptual framework for integrating production scheduling in flowshop manufacturing cells, known as flowshop group scheduling (FSGSP), and unequal-area facility layout (UAFLP) decisions is proposed. Materials and Methods: First, a brief literature review is carried out to identify the elements, solution techniques and complementary decisions for the UAFLP, FSGSP and layout-scheduling approaches. Results: Based on the results of the literature review a 4-phase integrative model is proposed to integrate these decisions, based on a lean manufacturing environment. The phases include the input data collection and preparation process, the definition of the UAFLP, FSGSP and other complementary decisions, the optimization of the decisions, and the selection of the best alternative. Conclusions: The integration of these decisions using the proposed framework can achieve benefits related to the reduction of mudas, such as material handling, high work-in-process inventory levels and setup times for real, industrial contexts.
Evaluación de estrategias de gestión de aceites de cocina usados. Caso de estudio Puyo, Amazonia Ecuatoriana
Authors: Prieto-Guerrero Mónica Elizabeth , Robalino-Zambrano Dina Alejandra , Sarduy-Pereira Liliana Bárbara , Villavicencio-Montoya Jonathan Fabricio , Diéguez Santana Karel
Published: June 2022

La contaminación ambiental es uno de los problemas más importantes y comunes que se presentan en todo el mundo debido a satisfacer nuestros hábitos alimenticios, generando desechos para el ambiente. El presente trabajo analizó la viabilidad técnica y económica de tres estrategias de aprovechamiento del aceite de cocina usado (ACU) para diferentes establecimientos gastronómicos de la ciudad de Puyo, Provincia de Pastaza, Ecuador. La situación actual del manejo se evaluó en 47 establecimientos, y se analizaron las características del aceite generado. Las estrategias analizadas fueron acopio y venta a gestores autorizados, fabricación de jabones y velas como las posibles alternativas para el aprovechamiento del ACU. Según los resultados de la evaluación económica la elaboración de las velas es la opción más rentable económicamente con un valor actual de $447.530,01, una tasa de retorno de 106,3% y un periodo de recuperación 0,7 años. Finalmente, se recomienda que se extienda este análisis a otros barrios y sectores de la ciudad de Puyo, a fin de conocer la generación de la ciudad, e integrar a las demás unidades económicas en un proyecto de mayor alcance
Modified Biopsy Assessment for Endobronchial Ultrasound in Diagnosis of Peripheral Lung Neoplasms
Authors: Pushkarev E. A. , Vazhenin A. V. , Kulaev K. I. , Yusupov I. M. , Zuikov K. S. , Popova I. A. , Kazantsev A. S.
Published: June 2022

Background. Diagnosis and treatment of malignant lung neoplasms are pressing issues. Peripheral lung cancer verification rate with endobronchial ultrasound varies within 30–85 %.

Aim. To advance endobronchial ultrasound precision, a modified biopsy technique has been developed and introduced into clinical practice at the Chelyabinsk Regional Clinical Centre for Oncology and Nuclear Medicine. The modification comprises real-time ultrasound image guidance of the biopsy forceps alignment and opening. The technique patent for invention is RU 2719666 C1.

Materials and methods. Modified endobronchial ultrasound has been performed in 66 patients with suspected peripheral lung malignancy at the Centre’s Department of Endoscopy within 2019–2021. Bioptic material was delivered for histological and, when necessary, immunohistochemical examination.

Results. Malignancy diagnosis was verified in 78.8 % cases. The modified technique is relatively safe, with complications detected in two patients (3.8 % cases) and managed conservatively with success. Discussion. The standard biopsy technique provided for a lung malignancy verification rate of 57.7 % over 2019–2021. Thus, the rate improvement by modified technique is 21.1 %. The modified technique is relatively safe, with complications reported in two patients (3.8 % cases) and managed conservatively with success. Modified endobronchial ultrasound was adequately tolerated, with no increase in patient examination time. The technique can supersede more invasive diagnostic procedures.

Conclusion. We believe that the modified technique will improve the power of endobronchial ultrasound, reduce examination time and expedite prescription of special therapies.
Successful Treatment of Transplanted Kidney Patient with 100% Lung Damage Caused by COVID-19 Bilateral Pneumonia: a Clinical Case
Authors: Nuriakhmetov R. R. , Panteleev V. S. , Zagitov A. R. , Nartailakov M. A. , Kornilov M. N. , Biganyakov I. I.
Published: June 2022

Background. The new SARS-CoV-2 coronavirus infection is understudied; despite its worldwide prevalence, case reports of organ transplant recipients are rare.

Aim. A dynamics evaluation and treatment outcome improvement in a transplanted cadaveric kidney patient with 100% parenchymal lung damage caused by SARS-CoV-2 coronavirus bilateral pneumonia.

Materials and methods. We describe a successful treatment case of a transplant kidney patient having the new coronavirus infection (COVID-19) (of 03.12.2020). COVID-19 pneumonia was diagnosed on day 7 of the early post-transplant period. On day 14, the patient was admitted to an infectious ward and transferred to intensive care upon disease aggravation. Despite ongoing treatment, pulmonary parenchymal lesion reached 100% in CT scan on 24.12.2020. The patient was transferred to Surgery Unit No. 3 for further therapy on 11.01.2021 upon revealing a clinical improvement, positive laboratory dynamics and SARS-CoV-2-negative smear PCR tests. The patient was discharged for outpatient treatment on day 10.

Results and discussion. No evidence of focal infiltrative pulmonary change was detected in control chest CT after 4 months. Within 5 months since discharge, there were observed a general well-being improvement, 98% oxygen saturation, absent oedema, satisfactory transplanted kidney function.

Conclusion. Post-kidney-transplant patients are particularly susceptible to infection due to inherent chronic immunosuppression. The presented case of a kidney transplant patient having a favourable COVID-19 outcome demonstrates the efficacy of a timely treatment.
3D Conformal Radiotherapy in Cervical Metastasis to Brain
Authors: Minyazeva R. K. , Battalova G. Yu. , Sakhautdinova I. V. , Tayupova I. M. , Gilyazova I. R.
Published: June 2022

Background. Cervical cancer is among the commonest malignancies and a top fourth leading cause of cancer death in women worldwide. The five-year survival rate in locally advanced cervical cancer is 91.5%, and only 17.2% — in distant metastasis. Primary cervical cancer metastasis to brain is very rare. Report and analysis of quite rare clinical cases may shed light on this issue, helping formulate relevant therapeutic and diagnostic interventions.

Materials and methods. The article describes a case of cervical cancer metastasis to brain. The patient received modern 3D conformal intensity-modulated (IMRT) and image-guided (IGRT) radiation therapies on an Elekta Synergy highenergy linear digital accelerator instrument.

Results. Clinical effect has been achieved by end of treatment. Time since diagnosis of primary cervical cancer was 13 months, and 7 months — since diagnosis of brain metastasis.

Discussion. The survival rate in brain metastasis is marginal-low and depends on the patient’s age, primary tumour state, presence of extracranial metastases, as well as volume, number and location of metastases in brain parenchyma. An integrated approach including surgery, radiation and chemotherapy is considered superior to improve survival and the quality of life.

Conclusion. Despite sheer coverage of therapies available, the mean survival rate in intracranial metastasis remains subtle. Thereby, research and discovery of relapse and metastasis biomarkers of cervical cancer is relevant.
Dampak Film Animasi Upin Ipin Terhadap Sikap Peduli Lingkungan Siswa Kelas 5 Sekolah Dasar
Authors: Safitri Ayunda Rizki , Murtono Murtono , Setiawan Deka
Published: June 2022

The purpose of this study was to analyze the impact of the animated film Upin and Ipin on the environmental care attitude of 5th graders at SD 2 Ngarus.The research method used is qualitative phenomenology. This research is focused on looking at the impact of the film Upin and Ipin on students' environmental care attitudes. The research was conducted at SD 2 Ngarus. The informants in this study were 5th graders. The data collection techniques used were 1) documentation; 2) interview; and 3) observation. In analyzing qualitative data, it is carried out through three stages, namely: data reduction, data display, and conclusion drawing/verification.The results of the study found that there were changes in attitudes such as diligently helping and paying attention to plants and throwing garbage around them, turning off the water faucet when not in use, throwing garbage in its place after the informants watched the Upin and Ipin movie. Furthermore, the informants have awareness in recycling waste into items that have a selling value, use plastic waste after it is disposed of, invite friends to collect used items and then bury them.Meanwhile, the negative impact is that the informants never help their parents burn the accumulated garbage, the informants have not been able to save fuel (energy), and the informants sometimes do not throw away used goods.
Circadian changes in the hindgut bacterial composition of the American cockroaches, Periplanata americana (Dictyoptera, Blattodea)
Authors:   Department of Crop Production, Olabisi Onabanjo University, Ago-Iwoye, Nigeria, Joda Abiodun Oladipupo , Ademolu Kehinde Olutoyin ,   Department of Pure and Applied Zoology, Federal University of Agriculture, Abeokuta, Nigeria, Adelabu Blessing Adebola ,   Department of Microbiology, Chrisland University, Abeokuta, Nigeria, Olalonye Olufunmilayo Adebimpe ,   Department of Pure and Applied Zoology, Federal University of Agriculture, Abeokuta, Nigeria
Published: June 2022

The gut of American cockroaches, Periplanata americana hosts numerous symbionts that help in digestion and synthesis of many substances. The hindgut of cockroaches is unique in that it harbors higher number of microbes than other parts of the insect’s gut. Unlike gut enzymes activities, little is known about the daily pattern of the gut microbiota. Newly emerged adult American cockroaches collected from student hostel were used for this study. The hindgut microbial composition was examined at four periods of the day (6am, 12pm, 6pm and 12am) using Pour Plate Methods. The results showed that highest colony forming units (cfu) of the hindgut were recorded at 6:00pm (19.28 × 106 cfu/ml) followed by 6:00am (13.85 × 106 cfu/ml) while 12:00pm (3.02 × 106 cfu/ml) had the least. Also, a total of five (5) different bacteria (Klebsiella sp., Staphylococcus aureus, Pseudomonas aeruginosa, Citrobacter sp. and Escherichia coli) were isolated from the hindgut of the cockroaches. The most predominant of these bacterial isolates from the hindgut were Klebsiella sp. and Staphylococcus aureus while the least isolated organism was Citrobacter sp. Hence, there was circadian variation in the microbial composition of the hindgut of Periplaneta americana.
The Bridge that Divides: Antinomy of “translation” in the Balkan Model of the World
Authors:   Institute for Slavic Studies, RAS, Zlydneva, Nataliya
Published: June 2022

The article deals with the specific model of translation of cultural codes in the 20th century Balkan literature and art. The author highlights explications of translation of various kinds: the motif of the crossing-bridge and the scheme of the narrator-mediator in I. Andrich’s prose, border forms in the South Slavic art of the neo-avant-garde of the 1960s (the group “Medial”), the multilevel borderzone in D. Ugreshich’s prose, problematic communication in visual concepts of Christo. The general strategy of translation-as a-transfer demonstrates an antinomy of the Balkan model of the world: the translation as a bridge designed to connect here divides the participants in the communicative process. The texts of different classes and poetic systems are marked with extremes: “translation” is implemented in the range from metaphorical silence to over-communication.
Memory of the Thing and Simulative Temporality in Evgeniy Chizhov Novel “The Paradise Gatherer”
Authors:   Russian-Armenian (Slavonic) University, Vaneskehyan Kima
Published: June 2022

The paper examines the category of chronotope in the postmodern novel “The Paradise Gatherer” by Evgeniy Chizhov. The category of temporality is interpreted in a new light and presented as simulative. A detailed analysis of the concept “historical inversion” is completed; the transformation of temporality is presented in which time in the novel scatters, losing its attributes of present and future, thickening into the past and passing into the space of irreversible myth. Also, the paper addresses the chronotopes of main characters, conducts comparative analysis of large and small, personal and world narratives, and highlights the borders of the narrative space and time of main characters Kirill and Marina Lvovna. An essential part of the research is the reinterpretation of such categories as “thingism” and “the memory of the thing”. “A thing” is presented as a singulative point which structurizes time and reproduces the past. The concept “thing” is shown as a notion of the unity of space and time thickening into one specific, singulative point.
Personal Names of Yakuts and Their Surnames
Authors:   North-Eastern Federal University named after M.K. Ammosov, Ivanova Alena
Published: June 2022

: The work examines the features of the semantics of a proper name and surname on the material of the Yakut language, the source for the analysis is the surnames of the inhabitants of the Verkhnevilyui ulus [Phonebook 2010]. Analyzing surnames, many explained the meaning of surnames, relying on folk etymology, which comes from the root base of the word and correlates the generic name with its meaning. It was revealed that the origin of surnames has historical roots, and there are also surnames that originate from Yakut nicknames, places of residence. Currently, some people do not know the origin of their surname, the history of their family, studying the history of the origin of their surname, can helps to know a lot about the history of the formation of a kind and family tree. Whatever the motives for the emergence of a personal name, they will certainly reflect the peculiarity of everyday life, spiritual wealth and worldview of the people who created them.
Comparative Analysis of Morphological Peculiarities and Level of Usage of the Suffix -oн/on in the Tajik Literary Language Referring to the XVIII-the – the and XX-th Centuries
Authors:   Khujand State University named after academician Bobojon Gafurov, Ashrapov Bahodurjon
Published: June 2022

The article dwells on the issue beset with comparative analysis of morphological peculiarities and level of usage of the suffix -он/on in the Tajik literary language referring to the XVIII-th and XX-th centuries. It is underscored that the relevant suffix is considered to be one of the frequently used ones. Proceeding from the adduced analysis concerned with the theme explored the author of the article asserts that possibilities of formation of plural nouns by means of the suffix 50 -он/on in the language of comparative periods shows that the scope and specificity of the use of the relevant linguistic element is characterized with wide scales. It is concluded that the suffix in question is used to plurify different kinds of nouns, such as animate and inanimate, personal and non-personal and borrowed words as well.
Panorama do debate sobre economia solidária e políticas públicas ligadas à coleta seletiva de resíduos sólidos
Authors: Becker Marcio , Bertolini Geysler Rogis Flor
Published: June 2022

Até o final do século passado, as abordagens a respeito da Economia Solidária eram limitadas e geralmente associadas a movimentos isolados, não raras as vezes compreendidos como desnecessários e limitadores de desenvolvimento. Esta realidade tem encontrado mudanças significativas, cujas características este trabalho procura responder: onde estão e quais são as principais áreas de pesquisa e interesse sobre este tema, no contexto do cooperativismo e das políticas públicas associadas à coleta seletiva de resíduos sólidos. Tal ação jutifica-se, em especial, pelas crescentes afirmativas de que a raça humana depende de ações claras e objetivas no context do lixo. Para tanto, se utilizou o método de revisão sistemática, cujas pesquisas abordaram trabalhos publicados na Plataforma Web of Science no intervalo de dez anos (2009-2019). Os resultados apontaram oitocentos e quarenta e três trabalhos, levando-se em consideração os limitadores iniciais. Após a aplicação dos cortes e cruzamentos propostos, vinte e dois trabalhos se enquadraram e serviram de base para esta pesquisa. Os trabalhos, em sua maioria, apontam a economia solidária como um meio de organização social em crescimento, em áreas muito distintas, porém ainda com grandes deficiências em políticas públicas. Em específico, os resultados mostraram o fomento de cooperativas de catadores de resíduos sólidos e o incentivo ao processo de reciclagem como meio de geração de renda e reinclusão social, mesmo em meio a dificuldades.
Palavras-chave: Resíduos Sólidos. Catadores. Reciclagem. Políticas Públicas. Cooperativismo.
De la empresa familiar a la familia empresaria: Enfoque de Bienestar Subjetivo
Authors: Porto-Robles Zusell , Watkins-Fassler Karen , Rodríguez-Ariza Lázaro
Published: June 2022

A pesar de que el estudio de la empresa familiar tiene historia y cuenta con múltiples teorías como apoyo a la investigación, existe la necesidad de utilizar enfoques que permitan comprender mejor esta realidad, a partir de los miembros de la familia que la integran. Esta investigación hace una revisión sobre las teorías que pueden servir de fundamento al estudio de la empresa familiar y de la familia empresaria. Concluye con la presentación del Enfoque de Bienestar Subjetivo como nueva forma de estudio de la empresa familiar, pudiendo contribuir al enriquecimiento de otros conceptos al incluir en el análisis las emociones y enfocarse en los miembros de la familia empresaria.
Family Firm Heterogeneity and its Effect on Strategy. The Case of the Spanish Wine Sector
Authors: Abella-Garcés Silvia , Ferrer Juan Ramón
Published: June 2022

This research aims to cover some of the existing gap in the strategy of family firms literature, taking into account the heterogeneity of this kind of firms. We use a logit regression methodology in order to analyse the relationship between the strategy selected by the family firm and its performance, and whether differences exist depending on the degree of the family involvement in the firm. In order to test for our hypothesis, we use a sample of Spanish firms from the wine sector. Our results show that Porter’s cost strategy is positively related to performance for all type of family firms, and that a Miles’ analyser strategy is positively related to performance in family firms, although the effect of this strategy loses its impact as the degree of involvement of the family in the firm increases. It has also been shown that Miles’ reactive strategy, in family firms with more than fifty per cent of family involvement, negatively influences performance. In short, the results show that the strategy chosen by the family firm depends on the degree of property owned by the family.
Employee Silence and Entrepreneurial Orientation in Small and Medium-Sized Family Firms
Authors: Pimentel Duarte , Rodrigues Raquel
Published: June 2022

This paper aims to assess differences between employees of family and non-family firms regarding their levels of employee silence and their perceptions of the company’s entrepreneurial orientation. Moreover, focusing on family firms, we assess the relationship between the levels of employees’ silence and their perceptions of the firm’s entrepreneurial orientation. The empirical evidence is provided by a sample of 245 Portuguese employees, 117 employees of family firms, and 128 of non-family firms, who responded to a questionnaire that included employee silence and entrepreneurial orientation measures. Results reveal that family firms’ employees show higher levels of employee silence but perceive their companies as less entrepreneurially oriented than employees of non-family companies. In addition, our results do not support the idea that there is a relationship between the levels of employee silence and the employee’s perception of the company’s entrepreneurial orientation. This paper offers initial insights into the debate on the relationship between the levels of employee silence and the employee’s perception of the company’s entrepreneurial orientation in family firms.
Revisión sistemática de la literatura: Beneficios de los videojuegos en Educación Primaria
Authors: Mielgo-Conde Iván , Seijas-Santos Sara , Grande de Prado Mario
Published: June 2022

Los videojuegos y su uso como una herramienta en el proceso de aprendizaje es una temática relevante dentro de la literatura científica educativa, en la que la gamificación, los juegos serios y el aprendizaje basado en juegos atraen cada más la atención de los educadores. El objetivo de este estudio consiste en revisar la literatura científica educativa sobre los videojuegos y sus beneficios en Educación Primaria, con especial atención a las publicaciones españolas. Se ha procedido a revisar las asignaturas implicadas, el número de publicaciones por año y la relevancia de las revistas que los publican y conocer la frecuencia de publicación de artículos por revistas. También se han consultado las citas recibidas en Google Scholar.  Los beneficios encontrados en esta revisión incluyen la atención, la concentración o la resolución de problemas. Se trata de un recurso con gran potencial didáctico y de gran interés, siendo una herramienta muy atractiva para y capaz de jugar un importante papel dentro del desarrollo cognitivo. Gracias a la evolución que han sufrido a lo largo de los años, los videojuegos se pueden utilizar en una gran diversidad de plataformas adaptándose a las distintas áreas de la Educación Primaria, destacando las Matemáticas y las Ciencias Sociales.
Percepciones y uso de los medios digitales en educación artística: un estudio descriptivo
Authors: Bravo Villares Víctor , Fernández Sánchez María Jesús
Published: June 2022

El desarrollo tecnológico de las últimas décadas ha generado importantes cambios en el ámbito educativo, que se han traducido en nuevos planteamientos que requieren del uso de herramientas digitales en las enseñanzas artísticas. Este nuevo contexto exige que el profesorado se forme de manera continua y muestre actitudes positivas en el empleo de estos innovadores medios. El presente trabajo pretende alcanzar dos objetivos: (I) Explorar la percepción y el uso que hace el profesorado de enseñanzas artísticas de los recursos digitales y (II) conocer el grado de incorporación de los medios tecnológicos en la enseñanza de las áreas artísticas desde la perspectiva del alumnado. Para ello, se diseñaron y se validaron dos amplios cuestionarios que fueron aplicados al alumnado y al profesorado del Bachillerato de Artes de cuatro de los cinco centros de Extremadura que ofertan este tipo de enseñanzas. Los resultados muestran una percepción positiva sobre el uso de estos medios en las enseñanzas artísticas, gran variedad de usos y compromiso hacia la formación permanente. De este modo, concluimos que los recursos digitales suponen una mayor rapidez, facilidad y capacidad de experimentación en la práctica artística, aunque detectamos una ausencia significativa en materias como “Volumen”, “Diseño” o “Imagen y Sonido”. Por otro lado, señalamos un importante déficit de adquisición de competencias TIC en la formación inicial del profesorado.
JUSECA: UN JUEGO SERIO PARA LA COMPRENSIÓN DE ALGORITMOS
Authors: Pérez Angulo Jesús Alberto , Castro Rosales José Alejandro
Published: June 2022

La comprensión de algoritmos es una de las dificultades para estudiantes de cursos introductorios de programación a nivel universitario. Aunque ya existen estrategias para estimular la comprensión de algoritmos, no se encontró una estrategia que cubra las necesidades de la asignatura “Programación 1” de la Universidad de Los Andes, por lo tanto, en esta investigación se propone un juego serio, orientado a esta asignatura, para la comprensión de algoritmos, aplicando la metodología ADDIE (Análisis, Diseño, Desarrollo, Implementación y Evaluación). Las etapas de Análisis, Diseño y Desarrollo se destinaron a la construcción de JUSECA (Juego Serio para la Comprensión de Algoritmos); en la etapa de Implementación se proporcionó el juego a un grupo de estudiantes; y en la etapa de Evaluación se aplicó una evaluación ad hoc de rendimiento en la comprensión de algoritmos, y se aplicó MEEGA+ (Modelo para la Evaluación de Juegos Educacionales) para evaluar la experiencia de los estudiantes y la usabilidad del juego. Los resultados de la evaluación ad hoc indicaron que el juego fomentó en los estudiantes la resolución correcta del algoritmo más fácil. Por otro lado, los resultados de MEEGA+ permitieron conocer que el juego propuesto cumple moderadamente con los requerimientos de un juego educacional.
A New Perspective of Genome Regulation from the Physics of Life Standpoint
Authors: Ērenpreisa Jekaterina , Giuliani Alessandro
Published: June 2022

The convergence between a statistical mechanics and biological approach in elucidating some basic features of cell differentiation opens new avenues of research in gene expression regulation and holds some promises in terms of a re-differentiation approach to a cancer cure. The message emerging from two recent papers by the authors of the present communication follows very simple basic lines. The time-honored concept of homeostasis, at the very basis of physiology, is in action even at the microscopic level of gene expression regulation, where a continuous (relatively small) oscillation of gene expression is mandatory for keeping alive the substantial stability of the gene expression profile typical of a given cell type. This mechanism of stability, when oscillation exceeds a certain threshold, is responsible for the spreading of a large-scale perturbation invading the entire genome and eventually giving rise to cell fate change. The material basis of this model was discovered in the onset of a global reorganisation of chromatin driven by fusion-splitting dynamics of pericentromeric associated domains that, by selective folding/unfolding of chromatin, allows for a global scale re-arrangement of genome expression.
Edible Mushrooms Could Take Advantage of the Growth-Promoting and Biocontrol Potential of Azospirillum
Authors: Tsivileva Olga , Shaternikov Andrei , Ponomareva Elena
Published: June 2022

Investigations of biologically active substances sourced from xylotrophic macromycetes have shown their fundamental and practical significance. These studies have promoted the development of biotechnologies by obtaining the valuable products from the mycelial biomass and cultivation liquid and using these fungal species in “white chemistry”. Research into environmentally safe biological methods of stimulating the growth of medicinal and edible mushrooms can assist the development of scientific foundations of culture technologies. From the viewpoint of their bio-technological potential, selected factors of biological origin that promote the growth of wide-scale cultivated basidiomycetes are of interest. Improving mushroom resistance against negative environmental impacts seems to be feasible when the mushroom grows in combination with growth-promoting bacteria. The soil bacteria from the Azospirillum genus have attracted attention, as microorganisms are capable of actively influencing the growth and development of agricultural crops. Thus, revealing and exploring the growth-promoting properties of different species of Azospirillum with respect to edible and/or medicinal mushrooms, as well as the properties promoting the suppression of contaminants in double culture, are believed to be feasible and to reveal undoubted novelty. Cultivation jointly with the beneficial bacteria is a more effective biotechnological method for obtaining this valuable functional food faster, with a greater and much better and maintained mushroom yield. Future work involves addressing the problems of mushroom growth promoting bacterial interactions with mushrooms and implementing these synthetic microbial associations into agriculture.