bluuebunny/crossref_metadata_2025 huggingface dataset:
Caste conflict in Nigeria: The Osu/diala experience in Igboland, 1900-2017
Authors: Amalu Nneka Sophie , Abdullahi Yusuf , Demson Ekong
Published: August 2021

The paper seeks to examine caste conflict in Nigeria with particular focus on the Osu/Diala experience. In Nigeria every day we experience conflicts ranging from ethnic to religious, sects to caste conflicts, while so much attention is paid to other types of conflict, little attention has been paid to the conflicts between caste group. This could be the reason for paucity of literature on caste conflicts in Nigeria. The frustration-aggression theory is used as framework of analysis with qualitative descriptive research design and a multi-disciplinary approach of historical study as methodology. The Igbo since time immemorial have been divided majorly along lines of caste with the Diala perceived to be the superior and the Osu the inferior. This division comes with some political, economic, social and cultural restrictions for the Osu caste in communities where the system is practiced. Consequently, these restrictions breed anger, hatred, anxiety, tension, frustration and aggression as the Osu continually demand equality while the Diala on the other hand want to maintain the status quo. Ultimately, conflict becomes inevitable with attendant negative consequences on the community and greater implications for the entire Igbo nationality. The paper proffers solution on how such conflict can be managed as well how the caste system can be eliminated in its entirety.
Dietary nano-dicalcium phosphate improves immune response and intestinal morphology of broiler chickens
Authors: Makola M.D. , Motsei L.E. , Ajayi T.O. , Yusuf A.O.
Published: August 2021

Various levels of substitution of nano-dicalcium phosphate (nCaHPO4) for the calcium and phosphorus supplied by limestone and monocalcium phosphate were evaluated, based on weight change, serum constituents, immune response and intestinal morphology of broiler chickens. The birds were assigned to five dietary treatments containing 0% (control), 40%, 60%, 80%, and 100% substitution levels of nCaHPO4 from days 0 to 42. Data were collected for blood measurement and intestinal morphology and analysed with one-way analysis of variance. Feeds substituted with 40% nCaHPO4 showed a higher mean value of final weight and better feed conversion. The results revealed similar haematological parameters across the treatment groups. At the same time, nCaHPO4 influenced most of the serum biochemical constituents, such as calcium, phosphorus, glucose, albumin, and total protein. High concentrations of total protein were observed for birds fed 60% nCaHPO4 compared with other treatments. The highest comparable means for albumin were observed in birds fed 40% and 60% nCaHPO4. Cholesterol levels were increased when birds were fed 0% and 40% of diets. Elevated serum phosphorus concentration was observed when 0%, 40%, 60% and 100% substitution levels were fed, whereas 80% presented the least mean value. The results also showed that birds fed 40% nano-dicalcium phosphate had the highest villi length, which signified improved absorption of minerals. In conclusion, 40% and 60% levels of nCaHPO4 could be used to boost immune response and functional intestinal morphology of broiler chicken with no negative effect on haematological parameters.
What can be done about adolescent pregnancy in South Sudan?
Authors: Gawar Isaac
Published: August 2021

Introduction: The World Health Organization (WHO) defines ‘adolescents’ as individuals aged 10-19 years. The national family planning policy of South Sudan states that “by the age of 19, one out of three girls is already married or in union; and the same proportion has already started childbearing”. The causes of adolescent pregnancy can be attributed to social, cultural, political and health systems gaps.Objective: This review article looks at the contributory factors for adolescent pregnancy in South Sudan, the effects of these pregnancies and describes some solutions and recommendations.Method: A direct search was conducted in Google scholar and other search engines looking at titles such as teenage/adolescent  pregnancy in South Sudan, adolescent pregnancy in Africa, effects of adolescent pregnancy, and interventions to combat teenage/adolescent pregnancy.Results: The contributory factors for adolescent pregnancy in South Sudan are sociocultural where the need for dowries, forced and arranged marriages, gender based violence are examples, economic and political factors; where poor implementation or inadequate adolescent policies, illiteracy and poverty are major factors, failure of health systems; where the unavailability of health services such as the provision of contraceptives for adolescents and scarcity of teenager/adolescent-friendly health clinics; and individual factors whereadolescents reported desire to be mothers, societal recognition and peer pressure. In addition to all of these, rape and sexual slavery are reported as causes of adolescent pregnancy.Conclusions: Causes of adolescent pregnancy in South Sudan are multifactorial. The country needs to adopt the published guidelines from WHO on reduction of adolescent pregnancy and learn from experiences of countries that showed a greater reduction. The utilization of interventions made through research and evidence-based information which are suitable to South Sudan context are crucial.
Impact of a ring net fishery in the inshore marine waters of Kilifi on the reproductive biology of six pelagic fish species
Authors: Bett David K. , Tole Mwakio , Mlewa Chrisestom M.
Published: August 2021

Ring nets are modified purse seines used for pelagic fishing along the Kenya coast. This method is however associated with potential negative environmental implications in inshore and shallow fishing grounds. Biological impacts on selected pelagic species caught in the marine waters of Kilifi were investigated during the Southeast Monsoon season (SEM) in April, May and September 2014, and the Northeast Monsoon season (NEM) in October and November 2014, and March 2015. Amblygaster sirm, Rastrelliger brachysoma, Sardinella gibbosa, Rastrelliger kanagurta, Hemiramphus far and Sphyraena obtusata were the most abundant species caught by the ring nets and comprised 68.9 % of fish catch composition. Analysis of ring net impacts on the fish sizes and maturity status were conducted for the NEM and SEM seasons. The catch composition for A. sirm in October comprised of 53.3 % juveniles and 53.4 % juveniles for S. obtusata in November. High percentages of H. far (78.3%) and S. obtusata (58.9 %) were captured in September. Incidences of undersize fish for A. sirm, S. gibbosa, R. kanagurta and R. brachysoma were observed across the seasons. Sex ratios for A. sirm, R. brachysoma, R. kanagurta and S. obtusata in the NEM season deviated from a normal ratio of 1:1 with more males observed. Females were dominant in the catch for H. far (1: 1.28) but the ratio was not different for S. gibbosa (χ² = 5.564, df = 1, p = 0.21). Males were dominant for A. sirm (1: 0.8) and S. gibbosa (1: 0.7) in the SEM season but the ratios were not different for H. far, S. obtusata, R. brachysoma and R. kanagurta. Differences in sex ratios were attributed to fish migrations and reproductive processes. Ring nets fished relatively offshore during the NEM season and targeted mainly spawning aggregations in stage IV. Immature fish in stage I and II which comprised of juveniles were harvested within sheltered inshore waters in the SEM season. Use of ring nets to target juveniles and spawning aggregations may disrupt recruitment processes. To enhance sustainable management of the ring net fishery, there is a need to develop harvesting strategies based on the information on stock status of the target fish.
Diversity of mangrove fungal endophytes from selected mangrove species of coastal Kenya
Authors: Kiti Helen M. , Munga Cosmas N. , Odalo Josiah O. , Guyo Paul M. , Kibiti Cromwell M.
Published: August 2021

Endophytes are bacteria or fungi living asymptomatically in the internal tissues of plants. They are symbiotic in nature and can be exploited for novel bioactive metabolites with applications in agriculture, medicine and industry. Mangrove fungal endophytes from the marine environment are abundant and have been recognized as sources of bioactive natural products. The study was designed to isolate, purify and identify mangrove fungal endophytes from selected common mangrove species of Gazi Bay, Tudor and Mida creek on the Kenya coast. The colonization rate and isolation rate of the mangrove fungal endophytes were determined. The studied mangrove species were Rhizophora mucronata (red mangrove), Sonneratia alba (mangrove apple), Avicennia marina (grey or white mangrove), and Ceriops tagal (spurred mangrove). Samples from twigs of these mangrove species were collected and analyzed using standard methods. Isolation of pure cultures of the endophytes was performed using Potato Dextrose Agar (PDA) incubated at 28 ± 1ºC for 5 days. The fungal isolates were identified under a light microscope based on colony morphology characteristics, type and presentation of conidiophores and conidia. A total of 18 different mangrove fungal endophytes were identified and these belonged to 5 genera. These were Aspergillus, Penicillium, Fusarium, Cephalosporium and Blastomyces, with Aspergillus being the most dominant genus. Tudor Creek recorded the highest fungal community diversity (H’ = 1.35) and Gazi Bay had the lowest diversity (H’ = 0.45). Fungal community similarity based on the identified genera was highest between Gazi Bay and Mida Creek (0.80) and lowest between Tudor Creek and Mida Creek (0.57). The selected mangrove species recorded a colonization rate of endophytic fungi of between 38.9 – 94.4 % with the highest habitation being associated with S. alba and C. tagal. There were differences and similarities in the colonization rate within mangrove species across study sites. Findings of this study have confirmed that the selected mangrove species exhibit high diversity of fungal endophytes with host recurrence and spatial heterogeneity.
Presence of microplastics in jellyfish (Crambionella orsini) along the Kenyan coast
Authors: Awuor Winnie , Muthumbi Agnes , Robertson-Andersson Deborah V.
Published: August 2021

Microplastics are plastic particles less than 5 mm in diameter. These plastics mostly result from degradation of larger plastics. Due to their small size, they are often accidentally ingested by sea faunas, particularly the deposit and filter feeders. However, information on the ingestion of microplastics by sea fauna such as jellyfish is rare. This paper provides evidence of ingestion of microplastics by jelly fishes (Crambionella orsini) along the Kenyan Coast. Samples were taken from three stations (Mikindani and Makupa in Mombasa, and Dabaso in Mida Creek) between 31st January 2018 and 3rd February 2018 using tow nets. Samples were digested using 10 % KOH at 60 °C for 24 hrs and sieved through a 38 µm sieve. Products below 38 µm were filtered using a 0.8 µm Whatman filters, then dried in an oven and viewed under a dissecting microscope for microplastics. Suspected microplastics were confirmed using a hot needle test. Microplastics obtained were mainly fibres of different colours: black, blue, green, colourless, purple, red and yellow. Colourless fibres were the majority accounting for 53 % of the total number of fibres while purple fibres were the least at only 1 %. Mean concentration of microplastics was highest in Dabaso (0.05 mp/g of tissue), whereas in Mikindani and Makupa were almost equal (i.e., 0.03 ± 0.003 mp/g in Mikindani, and 0.03 ± 0.01 mp/g in Makupa). Statistically, the means were not significantly different between the stations (F1, 2 = 1.34; P = 0.43). This study presents evidence of contamination of the Kenyan coastal waters by microplastics and their ingestion by sea fauna such as jellyfish. Results of this study will help reinforce the plastic ban in the country to prevent further accumulation in the environment.
Seasonal variability of vertical patterns in chlorophyll-a fluorescence in the coastal waters off Kimbiji, Tanzania
Authors: Peter Nyamisi , Semba Masumbuko , Lugomela Charles , Kyewalyanga Margareth
Published: August 2021

A study on the vertical pattern of chlorophyll-a (Chl-a) fluorescence was undertaken in the Mafia Channel offKimbiji, Tanzania. Data was collected during the Southeast Monsoon (SEM) and Northeast Monsoon (NEM) seasons. There was higher Chl-a concentration of 0.1 to 1.1 mgm-3 in the surface layer off Kimbiji to about 50 m depth due to the presence of mixed layer depth (MLD) which allowed water mixing in the layer. A deep Chl-a maximum was recorded at around 40 m depth during the NEM and between 40 and 70 m in the SEM. Surface water between longitude 39.9°E and 40.2°E had low Chl-a from the surface to about 50 m depth due to poor nutrient input. The NEM had an insignificantly higher Chl-a value than the SEM (p > 0.05) which differed from other studies in which Chl-a was higher during the SEM than the NEM, than, the Chl-a concentration was higher at the surface during the SEM than during the NEM. Satellite data showed higher Chl-a in the SEM than NEM, localized along the Mafia Channel. During the SEM season the wind pushes higher Chl-a water from the Mafia Channel towards the north and leads to a higher concentration at Kimbiji.
Assessment of the Implementation of New Digital Technologies in Connection with the Level of Efficiency of Supply Chains in the Context of COVID-19
Authors:   Vladivostok State University of Economics and Service, Rogulin Rodion S.
Published: August 2021

Introduction. In the extreme conditions of the COVID-19 pandemic, the vitality of supply chains has come to the fore, that is, their ability to self-support and survival in a changing environment through restructuring and rescheduling of productivity with long-term consequences. An effective information system and governance can help not only improve customer service and control costs but also facilitate planning to achieve key sustainability indicators such as environmental, economic, and social development. The purpose of this paper is to assess the impact of the widespread adoption of new digital technologies on the level of efficiency of supply chains in the face of disruption caused by the pandemic. Materials and Methods. For this study, statistical data were collected for the period from 2010 to 2019. Sources: Organization for Economic Cooperation and Development; The World Bank; Institute for Global Entrepreneurship and Development, etc. A logical-heuristic algorithm was used to form a system of indicators for assessing the effectiveness of information and communication technology and logistics. Results. It has been found that countries with a high level of economic development as evidenced by persistently high values of gross domestic product in the pre-crisis period show high indicators both in terms of the efficiency of logistics systems and in terms of digital transformation of the economy. At the same time, countries with low and below-average levels of economic development do not show high results in the context of logistics systems, but they also do not demonstrate a correlation between the level of economic development and the level of logistics efficiency and the level of digital life. Conclusion. Thus, the study has shown that the role of information and communication technology in improving the efficiency of supply chains becomes significant in favorable economic conditions in the country, and in times of crisis, the role of information and communication technology significantly increases and contributes to the restoration of supply chains and the survival of business in general.
System analysis of organisational and economic mechanisms for managing health care resource provision
Authors:   The Russian Presidential Academy of National Economy and Public Administration, Matskevich Victoria E.
Published: August 2021

Introduction. In shaping a strategy for the socio-economic development of countries and enhancing the level and quality of life of the inhabitants, advancing the health care system is one of the vital national challenges. The purpose of the article – to analyse data on the provision of medical care to citizens, including the "oncology" profile, for 2019–2021. Materials and methods. A theoretical analysis of research materials (publications in periodicals, conference materials and analytical materials) was used, as well as a descriptive statistical analysis of data from the World Health Organisation, the United Nations, and the World Bank. Results. The country rating of the world in terms of the health care system effectiveness, in which the leading positions are taken by Hong Kong (87.3 points), Singapore, and Spain, is presented. South Sudan ranks first in the ranking of countries in terms of mortality rates, i.e. 7.8 people in 2020 for 1,000 population. The country with the most hospital beds is Monaco, a country and micro-state in Western Europe with 13.8 beds per 1,000. Spending on oncology will reach nearly $240 billion by 2023, an increase of 9–12%. Spending on all medications used to treat cancer patients reached nearly $150 billion in 2020, an increase of 12.9% year over year from treatment medications. Conclusion. An important condition for improving the health care system is the development of the health insurance system, the introduction of new regulation principles, the creation of a unified field of supervision over the medical insurance organisation activities.
Empoderamiento de las tecnologías desde la gerencia, liderazgo y políticas públicas educativas en Venezuela
Authors: Torrealba César
Published: August 2021

La investigación se concibe a partir de las observaciones y declaraciones emergentes, encontradas entre docentes universitarios; denominados convivientes, orientadas bajo la discusión filosófica, generando cavilaciones, y concepciones, bien cimentadas. Se apoyó en el enfoque epistémico del Pensamiento Complejo de Morín (1997), en conjunción con el método complejo-dialógico, designando una nueva forma de pensar, sentir, de ver el mundo, inscrito en el enfoque cualitativo, con carácter descriptivo-interpretativo. Su propósito representa, generar nuevas perspectivas y enfoques epistemológicos, partiendo de la complejidad, y sus representaciones metodológicas, en la trascendencia de fomentar la búsqueda desde la multivisión epistemológica del fenómeno, ofreciendo disímiles experiencias, sirviendo de vinculo a diversos procesos de indagaciones, asociadas a un complexus de generalidades, categorías y constructos, trascendiendo a cualidades necesarias en las universidades. Los aspectos concluyentes, resultan ser importantes, requiriendo asumir más allá de las obligaciones universitarias que les son propias, en el contexto de la praxis académica e investigativa.
Prácticas discursivas y desarrollo del pensamiento crítico. Una intervención pedagógica a través del texto argumentativo
Authors: Tascón-Álvarez Carlos Andrés , Arteaga Quintero Marlene Coromoto
Published: August 2021

En esta investigación se llevó a cabo una intervención pedagógica, cuyo objetivo fue desarrollar en los estudiantes de los grados décimo y once, el pensamiento crítico y analítico, a través de la metodología cualitativa con un proceso múltiple. Se construyeron módulos y efectuaron talleres diseñados con textos argumentativos para una población de 145 estudiantes de la Institución Educativa Técnico Industrial Multipropósito, de Cali, Colombia. Se aplicaron estrategias de comprensión y producción de textos orales y escritos, con una selección de temas polémicos, elegidos por los estudiantes. Se escogieron los productos escriturales de 24 sujetos para examinar la evolución del grupo en sus competencias discursivas. Los documentos fueron analizados mediante instrumentos de campo y el Atlas.ti, hasta generar un conjunto de categorías fundamentales. Se obtuvo un resultado exitoso en el desarrollo del pensamiento crítico y analítico de estos jóvenes, lo que coadyuvará en la formación de una ciudadanía responsable.
Do Monetary Policy Measures Affect Foreign Exchange Rates during the COVID-19 Pandemic? Evidence from Turkey
Authors: KARTAL Mustafa Tevfik , DEPREN Özer , KILIÇ DEPREN Serpil
Published: August 2021

The study examines how foreign exchange (FX) rates in Turkey are affected by the pandemic considering the impacts of monetary policy responses to the pandemic. Selected FX
rates are examined by using 10 independent variables containing monetary policy indicators and the pandemic figures. In this context, daily data from February 1, 2019 to August 31,
2020 that consists of the pre-pandemic and the pandemic periods are considered and machine learning algorithms are applied. The findings reveal that the pandemic and monetary
policy indicators have a statistically significant and high effect on the FX rates, and the influence of independent factors on the FX rates vary according to the periods. According to the
results of the study, it is emphasized the importance of the pandemic and monetary policy measures on the FX rates because monetary policy indicators have a statistically significant
and high impact on the FX rates in Turkey for the pandemic period.
“Salvos pela graça, por meio da fé” (EF 2,8)
Authors: Gonzaga Waldecir , Da Silva Vilson José
Published: August 2021

A proposta deste artigo é apresentar o tema da salvação segundo a formulação paulina: “χάριτί ἐστε σεσῳσμένοι διὰ πίστεως/pela graça sois salvos, por meio da fé” (Ef 2,8). Esta afirmação se encontra na perícope Ef 2,1-10, uma carta tida como deuteropaulina pela maioria de seus comentadores. Esta temática toca o centro da fé cristã, debatido no início do cristianismo e retomado com a reforma protestante, no séc. XVI. Ela merece ser refletida para que tenhamos uma fé consciente, esclarecida e fortalecida à luz das Sagradas Escrituras. Para tanto, o referido tema é abordado a partir da inteira perícope, delimitada em Ef 2,1-10, e seus correlatos no corpus e na teologia Paulina, uma vez que a salvação “por meio da fé” é um dos muitos temas teológicos deixados ao cristianismo, pelo pensamento paulino e por sua escola.Palavras-chave: Fé. Graça. Salvação. Redenção. Justificação. Jesus Cristo.
MOŽNOSTI ZVÝŠENIA PREKLÁDKY SUCHÉHO HROMADNÉHO VOĽNE LOŽENÉHO NÁKLADU V PRÍSTAVOCH
Authors: Mako Peter , Dávid Andrej , Olei Adrian Bebe
Published: August 2021

Prekládková činnosť patrí k ťažiskovým činnostiam prístavov. Zvyšovanie množstva suchého, hromadného, voľne loženého  nákladu určeného na prepravu vodnou dopravou vedie k nutnosti zvýšenej prekládkovej činnosti prístavov. V prístavoch dochádza z tohto dôvodu k využívaniu výkonnejších prekládkových zariadení. Informácie o týchto zariadeniach a ich prvotné porovnanie pomocou SWOT analýzy poskytuje bližší pohľad na možnosti ich využitia. Správnym rozhodnutím totiž prístav môže zvýšiť svoju prekládkovú kapacitu, avšak nevhodné použitie môže spôsobiť problémy, ktorým bude musieť v budúcnosti daný prístav čeliť. Preto je cieľom tohto článku prispieť k informovanosti o dostupných metódach, na základe prvotnej analýzy informovať čitateľa o efektívnych možnostiach nasadenia týchto prekládkových zariadení v prístavoch a termináloch.
RESEARCH ON THE USE OF ECO-DRIVING IN CITY TRAFFIC
Authors: Caban Jacek
Published: August 2021

As it is commonly known, during the operation of vehicles, their operational parameters change, related to the influence of working factors, the current road situation or wear processes of vehicle components. Currently, for many years there has been a discussion on improving the environmental properties of motor vehicles, taking into account technical, legal and operational factors. The article presents selected research results of a vehicle using the eco-driving technique in city traffic on the so-called routine route in a selected area of the city of Lublin in south-eastern Poland. The tests were carried out on a passenger car with a spark ignition engine powered by gasoline. The obtained test results focus on the influence of selected driving parameters, such as: average speed, driving time, mileage, road characteristics, number of stops, number of brakes. The conducted research indicates the possibility of using eco-driving in city traffic and gives positive results.
KVALITA MHD AKO MOTIVAČNÝ FAKTOR PRE JEJ VYUŽÍVANIE
Authors: Zatkalík Pavol , Rybář Jan , Pospíšil Jiří
Published: August 2021

The quality of public transport is becoming increasingly important for the good functioning of the city system. The article deals with the possibilities of motivating car users to use public transport in small and medium-sized cities. It seeks a balance between the comfort that public transport must meet and the efficiency of operation that public transport must maintain. It shows that good public transport organization, especially line optimization, can reveal large reserves. It explains the benefits of a suitably laid out network of lines and corresponding timetables for passenger comfort, as well as the benefits for the efficiency of public transport operations. It thus provides guidance for the management of cities in the field of public transport. The optimization of line management and timetables is documented on the practical example of the city of Trnava.
PENERAPAN PEMBELAJARAN BLENDED LEARNING PADA MAHASISWA SEMETER 6 MATA KULIAH PPLK 1 PROGRAM STUDI PPKN
Authors: Marlina Lina
Published: August 2021

ABSTRACT

Blended learning is applied to the PPLK 1 course for 6th-semester students by the lecturer in the PPLK 1 course which must be given to students of the PPLK study program and as a prerequisite before they are sent to school to implement PPLK 2 in the PPLK 1 course. also as a type of lecture in the form of Micro Teaching which will create prospective teachers of the Civics Study Program to become professional educators in the field of teacher training. The purpose of research in the form of a blended learning process is to train and prepare students as professional teacher candidates using a blended learning-based learning process, namely face-to-face learning and e-learning. The form of research used in this research is qualitative research with a descriptive method. Based on the results of the study, it can be concluded that by applying blended learning to students in semester 6 of PPLK 1 courses, the PPKn Study Program, the learning process can be said to be successful and give a positive response to blended learning. The results of this study make students not feel that the learning process is monotonous and good. Supporting lecturers and students get good results from the PPLK 1 course learning process and gain experience of learning models using two activities, namely face-to-face learning and e-learning.
KINERJA PELAYANAN PUBLIK PADA KANTOR KESYAHBANDARAN DAN OTORITAS PELABUHAN (KSOP) KELAS IV BAGANSIAPIAPI
Authors: Mursalin Mursalin , Heriyanto Meyzi , Yuliani Febri
Published: August 2021

Abstract  

This study aims to find out how the performance of public services at the harbor and port authority offices (KSOP class IV Bagansiapiapi. And what are the factors that affect the performance of public services at the harbor and port authority office (KSOP) class IV Bagansiapiapi. The data analysis used is descriptive qualitative analysis recommended by Miles and Huberman (1992), namely: Data Reduction, Data Presentation, and Conclusions and Verification of Results. Data collection techniques with observation, interviews (structured and in-depth with informants), and documentation. The results of the research show that the Performance of Public Service Performance at the Port Authority and Class IV Bagansiapiapi Port Authority has been carried out as it should. of the 14 (fourteen) indicators used according to Moeheriono (2012:163), namely, there are 13 (thirteen) indicators that are good (as it should be) but there is one indicator that is not good, namely the Environmental Comfort indicator, this is related to the availability of facilities the existing facilities in the working area of the Port Authority (KSOP) Class IV Bagansiapiapi office, namely Haling Island, Sinaboy and BuluHala. And the factors that affect the performance of public services at the Port Authority Port Authority Office (KSOP) class IV Bagansiapiapi are on the Individual Factor, namely Ability and Expertise, on the Psychological Factor is the Attitude, Personality and Learning and Motivation factor while the Organizational Factor is Resources, Leadership and Awards
O papel do planejamento na transição energética: mais luz e menos calor
Authors: Ferreira Thiago Vasconcellos Barral , Machado Giovani Vitória
Published: August 2021

A abertura dos mercados de energia iniciada nos anos 90 no Brasil trouxe maior diversidade de agentes, promoveu a desverticalização da organização industrial do setor e possibilitou formas mais descentralizadas de atuação empresarial. Simultaneamente, também houve mudanças importantes na relação do setor energético com a sociedade e com o meio ambiente a partir dos anos 90. Tais condicionantes modificaram os objetivos, os instrumentos e as avaliações do planejamento energético no Brasil. O presente trabalho aborda o papel do planejamento na transição energética. Incialmente, resgata-se o histórico de mudanças de condicionantes que levaram ao contexto atual do planejamento energético no Brasil e à formação da Empresa de Pesquisa Energética. Em seguida, à luz do conceito de planejamento energético integrado, aborda-se a formalização da estratégia e das táticas registradas no Plano Nacional de Energia 2050 e nos Planos Decenais de Expansão de Energia. Depois, discute-se o planejamento no âmbito da transição energética do Brasil. Finalmente, traçam-se considerações acerca do papel do planejamento no aperfeiçoamento dos desenhos de mercado, na identificação e remoção de barreiras e ineficiências sistêmicas, bem como na formação de consensos para tomada de decisões de investimentos na transição energética.
Some Double Sequence Spaces Generated by Four-Dimensional Pascal Matrix
Authors:   Department of Mathematical Sciences, University of Maiduguri, Maiduguri Borno Md State Nigeria, Kiltho Ahmadu
Published: August 2021

The purpose of this paper is to discover and examine a four-dimensional Pascal matrix domain on Pascal sequence spaces. We show that they are spaces and also establish their Schauder basis, topological properties, isomorphism and some inclusions.
PENGARUH FIXED ASSET TURN OVER DAN CURRENT RATIO TERHADAP ROA PADA SUB SEKTOR SEMEN YANG TERDAFTAR DI BEI PERIODE 2015-2019
Authors: Firmansyah Indra , Syarifudin Muhammad Yusuf
Published: August 2021

Perusahaan mempunyai tujuan untuk memperoleh keuntungan sebanyak-banyaknya yang dijadikan tuntutan agar perusahaan dapat menjaga kelangsungan hidup perusahaan dan berupaya mengembangkan usahanya seiring berkembangnya zaman. Analisis rasio keuangan dilakukan untuk menilai kinerja perusahaan dalam mewujudkan tujuannya. Penelitian ini bertujuan untuk menguji pengaruh fixed asset turn over dan current ratio terhadap return on asset. Penelitian ini dilakukan pada Perusahaan sub sektor semen yang terdaftar di BEI. Metode yang digunakan dalam penelitian ini adalah metode kuantitatif dengan jenis perumusan masalah asosiatif bentuk hubungan kausal. Penelitian ini menggunakan data sekunder berupa laporan keuangan Sub sektor semen yang tedaftar di BEI dan pengambilan sampel dilakukan menggunakan metode nonprobability sampling dengan teknik sampling purposive. Teknik analisis data yang digunakan dalam penelitian ini adalah uji normalitas, korelasi product moment, korelasi berganda, regresi linier berganda, koefisien determinasi, uji t dan uji F. Hasil penelitian menunjukkan bahwa secara parsial fixed asset turn over tidak berpengaruh terhadap variabel return on asset. Dan terdapat pengaruh yang signifikan antara current ratio terhadap return on asset. Secara simultan terdapat pengaruh yang signifikan antara fixed asset turn over dan current ratio terhadap return on asset.
Stochastic Forecasting of Stock Prices in Nigeria: Application of Geometric Brownian Motion Model
Authors: Toby Adolphus Joseph , Agbam Samuel Azubuike
Published: August 2021

Purpose:  The purpose of the study is to model and simulate the trends and behavioral patterns in The Nigerian Stock Market and hence predict the future stock prices within the Geometric Brownian Motion (GBM) framework.

Methodology: The methodology involves a comparison of forecasted daily closing prices to actual prices in order to evaluate the accuracy of the prediction model. Based on the model assumptions of the GBM with drift: continuity, normality and Markov tendency, the study investigated four years (2015 - 2018) of historical closing prices of ten stocks listed on The Nigerian Stock Exchange. The sample for this study is based on the most continuously traded stocks.

Findings: The results show that in the simulation there are some actual stock prices located outside trajectory realization that may be from GBM model. Thus, the model did not predict accurately the price behavior of some of the listed stocks.  The predictive power of the model is declining towards the longer the evaluated time frame proven by the higher value of the mean absolute percentage error. The value of the MAPE is 50% and below for the one- to two-year holding periods, and above 50% for the three-year holding period.

Unique Contribution to theory, Practice and Policy:  The MAPE and directional prediction accuracy method provide support that over short periods the GBM model is accurate. Meaning that the GBM is a reasonable predictive model for one or two years, but for three years, therefore, it is an inaccurate predictor. It is recommended that the technical analyst whose primary motive is to make gain at the expense of other participants should identify high volatile portfolio in any holding period for effective prediction Investors with long-range holding position as investment strategy should concentrate more on low capitalized stocks rather than stocks with large market capitalization. This is a unique contribution to theory, practice and policy.
Colher memórias de velhos: retratos de avós em obras do Caribe francófono
Authors: Rocha Vanessa Massoni da
Published: August 2021

Este artigo se propõe a perscrutar representações da velhice a partir do imaginário de avós em textos teórico-literários redigidos por seus netos e netas após o falecimento dos progenitores. Com o envelhecimento acentuado de diversas populações, torna-se urgente revisitar o paradigma desta fase da vida como etapa de declínio, propícia à doença, ao enfraquecimento e à inevitável morte. Partindo-se do conceito de “valor refúgio” proposto pelo crítico literário tunisiano Albert Memmi e no intuito de ‘colher memórias de velhos’, como o fez a escritora e psicóloga brasileira Éclea Bosi, nossas análises se debruçam nas relações familiares e na importância da ancestralidade no seio da sociedade em obras do caribe francófono, mais precisamente da ilha de Martinica e do arquipélago de Guadalupe. Neste sentido, acolhemos notadamente textos dos martinicanos Patrick Chamoiseau, Raphaël Confiant, Fabienne Kanor e dos guadalupenses Simone Schwarz-Bart, Maryse Condé e Dominique Lancastre nos quais estão em cena a relação entre velhice e representação literária  e nos quais emergem as noções de “oralitura” (CHAMOISEAU, 2002) , “busca identitária” (CHAMOISEAU, 2016) “presentificação” (FOUCAULT, 1992), “fabulação” (HUSTON, 2008) e morte como “ausência” (CHAMOISEAU, 2016). Por fim, vislumbra-se a ancestralidade e sua importância a partir da metáfora da árvore (HAMPÂTÉ BÂ), do “húmus” (KANOR, 2006) e da “seiva” (BOSI, 2003) para dar a ver um corpo social marcado pelos ensinamentos, pelas insurgências e pelo altruísmo de avós “velhos demais para morrer” (MARIANO, 2020).
Adaptação sob perspectiva: memento mori e as construções narrativas no conto e no longa-metragem
Authors: Santos Larissa Brito dos
Published: August 2021

O presente artigo discorre acerca do conto Memento Mori, de Jonathan Nolan, e sua posterior adaptação cinematográfica, dirigida por Christopher Nolan, no ano de 2000. O objetivo deste trabalho é identificar as particularidades inerentes a cada suporte, investigando as estratégias de construção de enredo e os efeitos de sentido que geram na experiência estética a partir da leitura literária e sua posterior tradução para a linguagem fílmica, refletindo sobre as idiossincrasias de cada construção narrativa e no difícil processo de adaptação entre linguagens. Para isso, utiliza-se de uma análise comparativa fundamentada sob a Teorias do Efeito Estético e a Antropologia Literária, que discorrem sobre o fenômeno da experiência estética, individual e imanente; e o processo de atribuição de sentidos.
Memória, Imagem e Arquivo: a potência arquivística da ficção de Décio Pignatari
Authors: Vieira Henrique Júlio
Published: August 2021

Este texto analisa a produção do escritor Décio Pignatari, observando o desenvolvimento de uma potência arquivística em sua ficção, em diálogo com as reflexões desenvolvidas na teoria literária, psicanálise e na bibliografia dos textos. Considerando os pressupostos concretistas de antissubjetivismo e de equivalência entre a forma e o conteúdo na construção literária (isomorfismo), analisa-se as modulações desses princípios nos livros O rosto da memória e Panteros, de notório teor autoficcional. O princípio de isomorfismo, simultaneamente, atualiza e é atualizado pela relação entre a literatura e as escritas de si na contemporaneidade, pois, por um lado, insere à materialidade dos livros textualidades próprias a um arquivo pessoal e, por outro, recupera à cena do texto o sujeito enquanto um signo da composição autoficcional.
Kinetics and exergy analysis of pyro-gas from residual tyres
Authors:   CO2Research and Green Technologies Centre Vellore Institute of Technology, Vellore, India., Rajkumar P. , Murugavelh Dr. S. ,   CO2Research and Green Technologies Centre Vellore Institute of Technology, Vellore, India.
Published: August 2021

About1.5 billion tyres are manufactured every year and enormous quantity of the tyres end up in trash. Waste rubber tyres possess calorific value around 39- 42 MJkg-1which makes it an attractive choice for pyrolysis process. The aim of the present work is to convert residual tyres into energy reach pyro-gas. A single column fixed bed batch pyrolyzer was designed pyrolysis of residual tyres. The residual tyres were ground into fine powder. The characterization of powdered residual tyres was performed with elemental analyser to determine the total carbon, hydrogen, nitrogen and sulphur. Thermo Gravimetric Analysis of the residual tyres was conducted at different heating rates viz., 5 °C min-1, 10 °C min-1, 15 °C min-1 to elucidate the thermal degradation profile. The thermal cracking of a residual tyres was conducted at temperature range of 450 °C to 550 °C with increment of 50 °C. Pyro-gas was measured individually for each trail and the exergy was determined using thermodynamic laws. Four different model-free methods were employed to estimate the kinetic parameter such as activation energy and order of the reaction. The average activation energy from Friedman model was evaluated to be 127.35 kJ mol-1. A maximum of 52.11% of Pyro-oil was reported at 550 °C. The maximum energy and exergy were 5.49 MJ kg-1 and 4.92 MJ kg-1 respectively.
Appraising Pavement Surface Distresses And Expected Mitigation Measure On Selected Road Segment
Authors:   Department of Civil Engineering, College of Engineering, Wolaita Sodo University, Wolaita Sodo, Ethiopia., Manuka Dagimwork Asele , Shirko Lachore Tarekegn ,   Department of Civil Engineering, College of Engineering, Wachemo University, Hossana, Ethiopia
Published: August 2021

The work visually inspects and evaluate the pavement failures and their causes as well as resolution methods. It is quite important to examine and identify the causes of the failed pavement to select a proper treatment option. The study consisted of two tasks: the first covers the detail visual inspection of the existing pavement failures, whereas the second investigates the actual causes of these failures. From Areka to Wolaita Sodo was selected for investigation. An intensive field work was carried out on the existing pavement condition of this road. It was found that most of the damaged pavement sections suffered from severe cracking, potholes and raveling failures. These failures might have been caused by fatigue failures on pavement structure due to the movement of heavily loaded truck – trailers. The damage could also be attributed to poor drainage, inadequate design and improper pavement materials.
An investigation into staff participation in the management of three secondary schools in the Phoenix-Verulam district
Authors:   , Chetty Uthamaganthan Perumal
Published: August 2021

Education has undergone many changes, over the past ten years. Prior to 1994, public schools in South Africa were-predominantly bureaucratic organisations where the principals of schools implemented an autocratic style of management. Now education-has moved away from such a system to-a-democratic system- in-which staff participation is encouraged. After 1998, the-Department of Education and Culture of KwaZulu-Natal made it compulsory for the principal to inform staff on all procedures to be implemented in the rationalisation and redeployment process. The Department also encouraged staff participation in deciding on matters relating to the schoot The researcher undertook a research study in three secondary schools in the Phoenix- Verulam District to assess the extent to-which staff were involved in management decisions and whether this had been successful. It was discovered that problems were encountered when management and administrative responsibilities were shared with staff members. The researcher made recommendations to solve these problems and improve staff participation in the management of a school.
Clonal Micropropagation of representatives of the genus Dactylorhiza Neck. ex Nevski
Authors:   ООО ", Saakian Alexander ,   БАЛАНС ПРОФИ"
Published: August 2021

Abstract The aim of this study is to develop and improve methods of in vitro propagation of representatives of Dactylorhiza: D.baltica , D. fuchsii. For the study, we used protocorms obtained by the asymbiotic germination of seed during 90 days. It has been established that half-strength of Murashige and Skoog (1962) medium (½ MS) supplemented with 1-2 mg/l 6-Benzylaminopurine(6-BAP), potato puree (20g/l), and charcoal (1g/l) effectively influenced the development of protocorms, and seedlings formation in the studied species. The result of the study showed that the survival rate of protocorms was high in all experimental culture media, but in D. fuchsii it was better at a concentration 2mg/l of 6-BAP (95.4%), while in D. baltica it was high at 1mg/l (87.0%). The highest percentage of multiple protocorms (68%) and the formation of new secondary protocorms in D. fuchsii (5,5±0,3 units) were observed on a culture medium containing 2 mg/l 6-BAP. The highest percent of rooting of D. fuchsii protosoms (78%) and length of roots (0.9cm) observed in ½ MS medium without growth regulators. During the development of D. baltica protosoms, the culture medium of ½ MS containing 1 mg/l 6-BAP had the best effect on the number of roots (1.8±0.1root/protosom), while the medium supplemented with 2mg/l of 6-BAP contributed to the formation of a larger number of new secondary protocorms (3,2±0,1protocorm/unit). During the subsequent cultivation of protosoms of D. baltica on a culture medium containing 1 mg/l it was observed an increase in the height of shoots (4,8±0,3 см), and the length of roots (2,2±0,1 см), wherein the number of newly formed protocorms was higher by 30% on the medium supplemented with 2 mg/l 6-BAP. Keywords: DACTYLORHIZA BALTICA, DACTYLORHIZA FUCHSII, IN VITRO, PROTOCORMS, ORGANIC ADDITIVES
OPTIMIZATION OF NICKEL CONTENT ON SOME PROPERTIES OF (NITI) SHAPE MEMORY ALLOY
Authors: Bouaissi Aissa , Radhi Nabaa S , Morad Karrar F. , Hafiz Mohammad H. , Atiyah Alaa Abdulhasan
Published: August 2021

Shape Memory Alloys (SMAs) are one of the most hopeful smart materials, especially, Nickel–Titanium (NiTi or Nitinol). These alloys are great and desirable due to their excellent reliability and behavior among all the commercially available alloys. In addition, strain recovery, (Ni–Ti) is granulated for a wide variety of medical uses because of its favorite properties such as fatigue behavior, corrosion resistance and biocompatibility. This paper explores the creation and the characterization of functionally graded (NiTi) materials. This work demonstrations the impact of Nickel contains changes on the characteristics of NiTi shape memory alloy, in order to obtain the suitable addition of Nickel contain, which gives the optimal balance between hardness, start and finish martensitic point, shape recovery and shape effect of alloys properties. These materials are prepared to obtain suddenly or gradually microstructure or composition differences inside the structure of one piece of material, the specimens made by powder metallurgy process and the influence of every layer of composite by; micro-hardness, transformation temperature DSC and shape effect. The hardness value and shape recovery decrease with increase nickel content. superior shape memory effect (SME) and shape recovery (SR) properties (i.e., 8.747, 10.270 for SMA-FGM1 SMA-FGM2 respectively, and SR is 1.735, 2.977 for SMA-FGM1 SMA-FGM2) respectively.
Zoonotic origins of Coronavirus (Covid-19) in light of SARS-CoV and MERS-CoV
Authors: Soulaimi Siham , LAHKIM Mohamed , BELMOUDEN Ahmed , HOUARI Abdellah , ANBI Abderrahim , EL KADMIRI Nadia
Published: August 2021

Cases of unknown pneumonia were increasingly reported in China in late 2019, causing a serious start to 2020 with a pandemic called Covid-19 which has negatively affected humans and claimed the lives of people of all ages, especially the elderly and those with existing illnesses. Since this is not the first known coronavirus, it is necessary to examine the first ones and their characteristics which have not shown much difference with the current Covid-19 in terms of the main symptoms and modes of transmission.Scientists and researchers are trying to unravel the origin story, regarding the species that passed it on to humans, as knowing how one pandemic emerged is a key point in stopping the next. According to a number of studies and researches, this article suggests that the virus is very likely to originate from bats and infect an intermediate animal (probably pangolins) in the same way that the SARS epidemic was transmitted from bats to civets before it infect humans, and that of MERS in which the virus wasoriginally passed from bats to camels and then to humans..However, it is important to note that not all bat species are suspected, and studies point out that animals are likely to harbor a virus and transmit it to a human who can also infect their species via the route. transmission.