bluuebunny/crossref_metadata_2025 huggingface dataset:
Determinants of Induced Abortion Intention among Adolescents Seeking Youth-Friendly Services in Homa Bay County, Kenya
Authors: Ajwang Everline Adhiambo , Arudo John , Ochanda Damaris
Published: February 2024

Background: Approximately 6.4 million women die because of unsafe abortion in Africa. Abortion contributes to 35% of maternal deaths nationally, out of these adolescents account for 17%. Homa Bay County is among the 15 high-burden counties in the country, which accounts for 97% of maternal deaths. Interestingly, 23% of the deaths are as a result of teenage pregnancy. The study aimed to determine the induced abortion intention among adolescents seeking youth-friendly services in Homa Bay County.

Methods And Material: A cross-sectional was implemented for the study from April to June 2020. Systematic random sampling was used to select 332 participants among 1652 adolescents in the study areas. Data was collected through self-administered questionnaires. Univariate analysis, stepwise selection and multivariate logistic regression were employed to find determinants of induced abortion intention. The study was approved by the Ethical Review Committee of Masinde Muliro University of Science and Technology (MMU/COR: 509099) and NACOSTI offered a research permit NACOSTI/P/20/4496.

Results: The study revealed a significant association between induced abortion intention and being multiparous (OR: 0.064; 95% CI: 0.005-0.918: p= 0.028). The current study found a strong association between adolescents' belief that their physical health reduces the likelihood of pregnancy from unprotected sex. Respondents who had a low perception of physical health were susceptible and had higher odds of having induced abortion intention. Similarly, the respondents who agreed that they do not talk to their partners about pregnancy were thrice as likely to have had induced abortion intention (OR: 3.2; 95% CI: 1.7- 6.1: p= 0.0002). In addition, those who believed that if they continued with the pregnancy their academic career would be endangered were 4.3 times as likely to have had induced abortion intention (OR: 4.3: 95% CI: 2.2 – 8.1; p < 0.0001).

Conclusion: In this study, induced abortion intention was significant among adolescents who had a misinformed perception of their physical health and chances of getting pregnant even if they practised unprotected sex, lacked disclosure to partners and were urged not to discontinue their career and profession. Governments should embrace and operationalize multisectoral and pre-counselling approaches coupled with comprehensive sexual reproductive health education in and out of school in Adolescents programs. Similarly, Adolescent' programs should scale up male involvement.
Larvacidal effects of methanolic and ethanolic leaf extracts of Xienemia americana against female Anopheles gambiae S.L. (Culicidae: Diptera)
Authors: M.A Aminu , S.A Shehu , N. Abdullahi , I.A Yola , A.T Tahir
Published: February 2024

Anopheles gambiae complex is the most important vector of malaria in sub-Saharan Africa. It is thought that Nigeria comprises about 45 species of Anopheles mosquitoes of which Anopheles gambiae is the most prevalent. Extract of different concentrations were evaluated at the level of 2.00 3.00, 4.00, 5.00 and 0.00 (Control) mg/ml. Distilled water only was used as control. Twenty (20) larvae were put into four (4) cups containing 100ml of the test solution of each concentration. Larval to pupa mortality were recorded and calculated after 24, 48 and 72h after treatment. Mortality results were used to determine LC50 and LC90 using probit analysis. The larvicidal activity of methanol and Ethanolic extracts of the X. Americana were evaluated on 4th instar larvae of Anopheles gambiae. From the results concentration of X. americana with ethanol has shown high larvicidal effect with 10%, 12%, 3% adult emergence when compare with control. While Methanol concentration reveals low larvicidal effect with 16 % adult emergence. Treatment group X. Americana showed highest survival from pupa to adult (28, 18% and 6%) recorded, this means concentration of ethanol has larvicidal effect against A. gambiae. However, methanol concentration shows low activity with 45, 21 and 16% followed by X. Americana with 18, 15 and 10% recorded the highest larvicidal activity among all the concentrations with methanol respectively. Concentration of 5.0 mL, 12.0 mL, 20.0 mL, 25.0, 30.0mL compare to control group. All the extracts proved to be toxic to the test organism, though there was a remarkable difference in the concentrations and timing of their activity.
Assessment of birds trade in urban Kano
Authors: S. M Salim , I.L Abdullahi , F.M Hamza
Published: February 2024

The bird trade puts pressure on both wild and domesticated populations, and several speciesare at risk of extinction due to this activity. The aim of this work was to find out the extent ofthe bird trade in urban Kano, Nigeria. A total of six markets were surveyed. The data wasobtained through interviews and observations. The conservation statuses of the traded birdswere assessed using the International Union for the Conservation of Nature (IUCN) Red Listand the Nigeria Endangered Species (Control of International Trade and Traffic) Act, 2016. A total of 101 birds belonging to 18 species were found to be under trade in various forms inthe places surveyed, with Columba species (20 (19.8 %)) being the most encountered birds,while the least encountered were Balearica pavanina (1 (1.0 %)), Bubulcus ibis (1 (1.0 %)),Pavo muticus (1 (1.0 %)), and Crithagra mozambica (1 (1.0 %)). Most of the bird species aretraded as pets, and the traders source them from different places within and outside thecountry, with the majority (56.8 %) of the traders entering the trade through familyinheritance. Although most of the birds encountered belong to the least concern category ofthe IUCN, legally protected species are openly displayed in the places surveyed. To giveendangered birds a future and to identify species in urgent need of conservation interventions,the authorities concerned should consider regular market monitoring and continuous birdsurveys.
Influence of different population densities of Bambara groundnut intercrop and weeding frequency on maize (Zea mays L.) performance
Authors: Nwagwu F. A. , Ekeruke A. N. , Umunnakwe O. C. , Ukpong O. E.
Published: February 2024

Effective weed management is essential for enhanced productivity of maize. A two-year field experiment was carried out at the Department of Crop Science Demonstration Farm, University of Calabar, Calabar, Nigeria (4.5-5.20 N, 8.0-8.30 E), in the 2019 and 2020 early planting seasons, to evaluate the influence of three population densities of Bambara groundnut [166,666 plants per hectare(B1), 100,000 plants per hectare (B2), 71,428 plants per hectare (B3)] and four hand weeding frequencies [weedy check (WC), one hand weeding (1HW), two hand weedings (2HW) and a weed free check (WFC)] on the performance of maize. The experiment consisted of three replications fitted into a Randomized Complete Block Design (RCBD). Data gathered on maize vegetative and yield characteristics were analysed using analysis of variance (ANOVA) procedures for RCBD (GenStat® statistical package, version 8.1). Significantly different means were compared at 5 % probability level using the Duncan’s New Multiple Range Test (DNMRT). From the results, maize growth and yield performance were significantly (P<0.05) affected by Bambara groundnut populations and the frequency of weeding. Leaving weeds unchecked all through the cultivation season hampered the vegetative and yield performance of maize, resulting in 47.54 % reduction in maize grain yield, compared with the weeded plots. Conclusively, intercropping maize with Bambara groundnut at 71,428 plants per hectare integrated with two hand weedings at 4 and 8 weeks after sowing (WAS), which optimized maize grain yield (3.87 t/ha on the two-year average) is recommended for farmers in the Calabar humid area and its environs.
Does Africa Need Interdisciplinary Humanities? Editorial
Authors: Ndasauka Yamikani
Published: February 2024

This editorial explores the value and viability of interdisciplinary approaches within African humanities scholarship. It argues that  complex contemporary issues require perspectives spanning traditional disciplines. However, African humanities faculties remain largely siloed in colonial-legacy models limiting theoretical synergy. Pursuing meaningful interdisciplinarity has the potential to dismantle  ideological constraints, better comprehend multidimensional African realities, restore epistemological cohesion severed through Western  knowledge fracturing, and develop contextual, analytical tools. However, the paper cautions against superficial  interdisciplinarity lacking methodological rigor or merely signalling trendiness. It stresses retaining a disciplinary base while leveraging  scoping reviews to chart relevance for other fields in addressing complex questions. Harnessing interdisciplinarity’s potential requires  institutional structures and incentives to facilitate humanities scholars to cross boundaries without abandoning specialisation. This  editorial seeks to continue the debate on pursuing deliberate, purposedriven interconnection.
Making Nouns with Prefixes ka- and na- in Chichewa: An Alternative View
Authors: Msaka Peter Kondwani
Published: February 2024

The paper discusses the noun prefixes ka- and na-, specifically those used to derive nouns that trigger the agreement marker  traditionally associated with noun class 1 in Chichewa. The motivation for conducting this study comes from the current partial  understanding of these prefixes in Chichewa and many other Bantu languages. In the existing analyses, the noun prefixes ka- and na- are taken either to be marginal or ceased to be noun prefixes in the synchronic grammars of some Bantu languages. In the present paper, I  show that these two prefixes are productive in the synchronic grammar of Chichewa. I provide three types of evidence to support this  view, namely (i) Chichewa neologisms, (ii) Chichewa names of places and persons, and (iii) nominal lexicon evidence from the Chichewa  Monolingual Dictionary. I conclude that ka- and na- are not marginal prefixes in noun class 1 but productive prefixes of present-day  Chichewa grammar.
When the Home is not Homely: Postcolonial Realities and Emergence of Human Trafficking in Tina Okpara’s My Life Has a Price and Ifeanyi Ajaegbo’s Sarah House
Authors: Olaniyan Solomon Olusayo , Kehinde Ayo
Published: February 2024

Human trafficking has been investigated in different fields of scholarship, including psychology, sociology, history and economics.  However, its depiction in twentyfirst-century Nigerian novels has not been given critical attention. Hence, this paper examines  postcolonial indices fuelling the emergence and continuance of this challenge, as narrated in Tina Okpara’s My Life Has a Price and  Ifeanyi Ajaegbo’s Sarah House, to investigate push-and-pull factors responsible for the growth of modern-day slavery. Deploying  postcolonial theory, with emphasis on postcolonialist concepts like alterity, othering/ordering, unhomeliness, subalternisation and dislocation to examine power relations between human traffickers and trafficked victims in the selected narratives, it is revealed that the  push-and-pull factors amplifying the proliferation of human trafficking in Okpara’s My Life has a Price and Ajaegbo’s Sarah House include  poverty, connivance of security personnel with human traffickers, unemployment, family disintegration, leniency of the judiciary,  death of the breadwinner, corruption and trafficked victims’ materialistic inclinations. In Sarah House and My Life Has a Price, the factors  aid the dispossession, subalternisation, inbetweeness, othering/ ordering and ‘exotopy’ or ‘outsideness’ of victims. Among other  narrative strategies, homodiegetic narrative focalisation and preponderant multiple settings are employed to foreground the objectivity  of the narratives and the migritudinal temper and restless lifestyle of the victims.
The effects of the rock stratigraphy on TPH/PAH absorption and transmission in some sections of the Gokana and Khana Local Government Areas
Authors: Etukokwu U.A. , Udom G.J. , Giadom F.D. , Ukpabi N.
Published: February 2024

Concentration of TPH/PAH in soils in parts of Gokana and Khana local government areas of Rivers state were examined using samples from 30 shallow wells drilled with hand auger. The core intervals penetrated, ranged between 0 on the surface to 100cm at total depth and was composited into two sections corresponding to upper 0 – 0.5m and lower 0.51 – 0.1m sections respectively. The samples were described to determine their sedimentological characteristics and effect on absorption and transmission of fluids. The total hydrocarbon content in samples of the study area were determined following the EPA 1664 Hexane Method (Method No: EPA 418.1/413.2 & EPA 1664). Individual concentrations of identified PAH congeners were noted and combined to generate the PAH concentrations in each of the two composited sections of the 30 sampled locations. The sedimentology of the logged sections consists mostly of peaty clay, clayey sands and organic clay in the upper section and clayey silt and clayey sand in the lower section. TPH in the study area ranged between 20612mg/kg at Location 15 to 37.09mg/kg at Location 11 for the upper (0 – 0.5m) sections and 14731mg/kg at Location 12 to 14.67mg/kg at Location 17 for the lower (0.51 – 1m) section. PAH ranged from 9.55mg/kg at Location 12 to <0.01mg/kg at several other Locations for the upper (0 – 0.5m) sections and 5.71mg/kg at Location 11 to <0.01mg/kg at several other Locations for the lower (0.51 – 1m) section. Correlation of sedimentology descriptions with the geochemical analysis indicates high concentrations of total petroleum hydrocarbon (TPH) and polycyclic aromatic hydrocarbon (PAH) within the upper (0 – 0.5m) sections than in the lower (0.51 – 0.1m) sections in consonant with the stratigraphy of the logged section.
Preliminary investigation of the activity of aqueous Cucumis sativus fruit extract on the prefrontal cortex in Wistar rats
Authors: Idemudia O.U. , Enogieru A.B.
Published: February 2024

Cucumis sativus Linn. is reported to have a wide variety of medicinal uses due to its abundance of carbohydrates, proteins, minerals and secondary metabolites. This study investigated the possible alterations in the prefrontal cortex of adult Wistar rats following the administration of aqueous Cucumis sativus fruit extract (ACSFE). Eighteen (18) Wistar rats, randomly divided into three groups (n=6), were used for this study. Group A served as control while Groups B and C received 250 mg/kg and 500 mg/kg of ACSFE respectively. At the end of the administration, the rats were weighed and the Y-maze test was utilized to evaluate spontaneous alternation of the experimental rats. Thereafter, the cerebri were harvested for antioxidant [Superoxide Dismutase (SOD), Catalase (CAT) and Glutathione (GSH)], lipid peroxidation [Malondialdehyde (MDA)] and histological evaluations. Results showed that there were no significant differences in the final body, absolute whole brain weights and spontaneous alternation of the extract-treated Groups when compared to the control. The histological sections of the prefrontal cortex of the rats in control Group were similar to the extract-treated groups showing normal pyramidal cells with open-face nuclei, basophilic cytoplasm and normal neuroglia cells. Taken together, ACSFE, at these doses, is not toxic to the prefrontal cortex of Wistar rats.
Intersubband optical gain spectra in compressively strained InGaAs/GaInP quantum well
Authors: Davies A.E. , Oriaku C.I. , Joseph U.
Published: February 2024

In this paper, the theoretical analyses of the optical intersubband transitions in strained InGaAs/GaInP quantum well are investigated. A simplified method of the treatment of the compressive strain effects incorporation for the wavefunction and thus the intersubband dipole matrix is discussed. The effects of Gallium mole fraction, quantum well width and compressive strained on the band properties, intersubband transitions and optical absorption/gain spectra are shown to be pronounced. Thus this present investigation could become a good guild for tuning the optoelectronic properties of many quantum devices utilizing intersubband electronics in their various technological applications.
Investigating the feasibility of utilizing Pennisetum purpureum leaves waste as a sustainable dye: Extraction, characterization and application on textile
Authors: Clark P. D. , Otutu J. O. , Asiagwu K. A. , Ndukwe G. I. , Idibie C. A.
Published: February 2024

This study investigated the potential of Pennisetum purpureum (Elephant grass) leaves waste as a source of natural dyes. The objective was to extract, characterize and apply the natural dyes on textile fabrics. Elephant grass was chosen due to its abundant availability as agricultural waste, making it an environmentally sustainable alternative to synthetic dyes. The extraction process involved maceration, followed by filtration to obtain the dye extract. The dye components were isolated using vacuum liquid chromatography and then characterized using analytical tools such as UV-Visible Spectrophotometry, High-Performance Liquid Chromatography (HPLC) and Fourier-Transform Infrared Spectroscopy (FTIR) to identify the presence of specific compounds responsible for the dyeing potential. The perspiration fastness, rubbing fastness, light fastness and wash fastness properties were assessed to evaluate the durability and suitability of the natural dyes. The UV-Visible spectrum, HPLC and FTIR analysis confirmed the presence of chromophores such as conjugated systems, and provided information about chemical components namely rutin, quercetin, senecionine, hyoscyamine and tannic acid present in the dye, as well as the types of bond present in the molecules including C-H, O-H, C=O and C-O groups, which are characteristics of natural dyes. The dyed textile fabrics demonstrated somewhat fair to good with a rating of 3-7 for perspiration fastness, light fastness, rubbing fastness and wash fastness, indicating the potential of the natural dye for practical applications. The findings can inspire further research and development in utilizing agricultural waste for natural dye production, promoting sustainable practices in textile manufacturing.
Effects of chemical reaction and heat source on MHD oscillatory viscoelastic flow in a channel filled with porous medium
Authors: Oahimire J. I.
Published: February 2024

The partial differential equations with the boundary conditions of effects of chemical reaction and heat source on MHD oscillatory viscoelastic flow in a channel were formulated based on assumptions and already existing model. The partial differential equations were transformed to dimensionless equations using suitable variables. Analytical solution was obtained for the dimensionless equations. With aids of Matlab, graphs were plotted and a table was generated to study the necessary parameters present in the flow. Increase in heat source resulted to increase in velocity of the flow while increase in chemical reaction led to decrease in velocity of the flow. The rate of heat transfer at both wall increases as heat source increases.
Evaluation of Dalmatia’s Cultural Space and the Yugoslav Discourse of the ‘Third Way’: Miroslav Krleža’s Essay The Gold and Silver of Zadar
Authors: Czerwiński Maciej
Published: February 2024

The article discusses the role played in the early 1950s by M. Krleža’s essay titled The Gold and Silver of Zadar (1951), as well as the circumstances of its emergence. In addition to the text itself, the analysis also encompasses Krleža’s unpublished notes from his trip to Dalmatia, his scholarly production, journalism and political discourse of that time (in the light of Krleža’s earlier literary works and essays). The aim of the paper is to indicate the ways in which cultural heritage was processed to semioticise space (Dalmatia within Yugoslavia) in the context of articulating certain political visions.
Wartość ciała biologicznego i ciała humanoida w świetle założeń teologii ciała
Authors: Gruchoła Małgorzata
Published: February 2024

The Value of the Biological Body and the Humanoid Body in the Context of the Theology of the Body

The aim of this paper was to present the influence of changes in the system: biological body – mechanical body (humanoid body), resulting from the use of cyborgization and social robotics on the evaluation of the biological body, in the context of the assumptions of the theology of the body (based on the biological body). The article adopts three research perspectives encompassing the perception of: 1. the biological body; 2. the body of a cyborg, i.e. a hybrid of a human and a machine (a machine in a biological body, inside the body, and a biological body functioning in a machine); 3. the mechanical body (humanoid), in the context of the theology of the body.
Архітектура української церкви у трактуванні Вадима Щербаківського
Authors: Олійник Ганна Іванівна
Published: February 2024

Точка зору видатного вченого, етнографа, антрополога і мистецтвознавця Вадима Щербаківського, який визначив себе у численних галузях через наукові дослідження та синтезуючі праці, представляє особливий інтерес, зокрема в контексті його поглядів на українську культуру та архітектуру українських церков. На теперішньому етапі розвитку, коли церква вплітається в ритми сучасного життя з його урбаністично-архітектурною стилістикою, дослілження та наукові висновки В.Щербаківського, щодо національних особливостей сакральних споруд України, стає особливо актуальною. Церква, як твір архітектурного мистецтва, не лише призначена для вияву найвищих почуттів і настроїв громади, але й активно реалізує своє прагнення займати відповідне місце у духовному і ментальному житті нових поколінь. Перед сучасним архітектором, який проектує храм, постає завдання з відшукання оптимального рішення у відтворенні в новінтіх будівельних технологіях і матеріалах, не порушуючи канонічно-літургійних засад, удосконалити та наблизити відвічний образ до сучасності. Важливість храму виявляється через загальний його образ, концепцію простору для богослужіння, значення, яке вкладається в його семантику, а також увагу до його структури та форми. Розглядання архетипів, збережених традицій, пошук гармонії та відчуття краси доповнюють цей образ. У кінцевому підсумку, храм для українців є не лише архітектурним спадком, але й виявом богословського змісту, який набував своє втілення протягом тисячоліть. Для нас позиція В.Щербаківського особливо цікава з точки зору суто мистецького: створення архітектурних ансамблів і прагнення органічного зв'язку сакральних будов з урбаністичним середовищем. Серед таких творчих пошуків ідеалістичні концепції трактування церковної архітектури В.Щербаківським, які ґрунтуються на глибоких науково-дослідних, підтверджених математичними розрахунками, висновках, представляють неоціненний теоретичний матеріал.
Довіра як соціальний феномен
Authors: Куриленко Тетяна
Published: February 2024

У статті розглянуто особливості осмислення феномену довіри в різних галузях сучасного соціального та гуманітарного знання. Феномен довіри як складне соціокультурне явище поєднує у собі моральні, економічні, соціологічні, культурні, політичні, юридичні аспекти. Співставлення основних ракурсів та аспектів довіри, виявлення діалектичного зв’язку довіри та недовіри сприятиме формуванню більш повного та адекватного дійсності знання про цей соціокультурний феномен. Зазначено, що проблема довіри актуальна з огляду дослідження специфіки сучасного суспільства, тенденцій його розвитку та соціокультурної ситуації.
Культурні подібності та відмінності як чинники економічної співпраці України з країнами Європейського Союзу
Authors: Задоя Анатолій , Фоменко Валерій
Published: February 2024

Стаття присвячена дослідженню культурного підґрунтя економічного співробітництва України та країн Європейського Союзу. Культурне підґрунтя є важливим фактором, який впливає на успіх міжнародного економічного співробітництва між країнами. Воно включає в себе такі аспекти, як мова, релігія, історія, соціальні норми та цінності. Актуальність такого дослідження зростає у зв’язку з прискореним просуванням нашої країни до повноцінного членства у ЄС. Україна та Європейський Союз мають багато культурних подібностей: спільну історію, культуру та цінності. Україна є частиною християнського світу, а більшість населення Європейського Союзу також є християнами. Обидві країни мають схожі соціальні норми та цінності, такі як важливість освіти, сім'ї та праці. Незважаючи на культурні подібності, між Україною та Європейським Союзом також існують деякі культурні відмінності. В Україні більш поширений авторитарний стиль управління, тоді як для Європейського Союзу властивий демократичний. В Україні також більш цінується працьовитість і відданість роботі, тоді як в Європейському Союзі – баланс між роботою і особистим життям. Результати проведеного дослідження вказують на те, що схожість за культурними вимірами впливає на міжнародне економічне співробітництво. У запропонованому дослідженні була використана модель АВС для того, щоб розподілити країни за обсягами торговельних відносин з Україною, а також модель Гофстеде для того, щоб мати кількісні показники за 6 культурними вимірами. Однак, слід зазначити, що дослідження було проведено на прикладі Європейського Союзу, який налічує 27 країн, тому результати можуть відрізнятися, якщо брати до уваги окрему країну. Також, не рекомендується зневажати іншими чинниками, які є каталізаторами або перешкодами для міжнародного економічного співробітництва.
What are the determinants of stock returns? A comparison of shrinkage methodologies
Authors: Hurina Olena , Kornieva Natalia , Dombrovska Liydmyla , Lisianska Karyna
Published: February 2024

One reason why the selected topic is significant is that investing in the stock market is one of the most popular ways for individuals and institutions to grow their wealth. However, determining future stock returns remains a challenging task, as stock prices are influenced by a wide range of factors, such as economic indicators, company financials, and global events. Over the years, researchers have used various methodologies to identify the determinants of stock returns, with the goal of improving investment decisions.
Ейдетика на службі готельно-ресторанного бізнесу: смак, дизайн та етичність застосування
Authors: Владимир Ольга , Шерстюк Роман
Published: February 2024

Сучасний стан готельно-ресторанного бізнесу України зазвав значних змін впродовж останніх років. Спершу він відчув негативний вплив пандемії, зумовленої поширенням Covid-19, тепер переживає наслідки повномасштабного воєнного вторгнення росії в Україну. З метою збереження та зміцнення позицій на ринку готельно-ресторанних послуг підприємства даної сфери діяльності шукають шляхи вирішення існуючих проблем та можливості подальшого зростання. У статті проведено аналіз досліджень поняття ейдетики та ейдетизму, розкрито його сутність та найпоширеніші сфери прояву і застосування. З’ясовано, що ейдетизм найчастіше застосуються такими науками як філософія, психологія та педагогіка. Описано основні форми пам’яті образів, зокрема, послідовні образи та уявні образи. Проаналізовано роботу та основні досягнення школи ейдетизму. Досліджено загальні особливості розвитку готельно-ресторанного бізнесу в Україні, а також особливості діяльності ресторанів з українською кухнею в інших країнах світу. У статті обґрунтовано доцільність застосування прийомів ейдетизму у розвитку готельно-ресторанного бізнесу, оскільки ейдетика це не лише спроможність нашого мозку відтворювати у пам’яті матеріальні образи, які ми бачили раніше. Наш мозок може відтворити у пам’яті й нематеріальні образи – певну атмосферу, відчуття, стан душі, завдяки таким чуттям як смак, нюх та звук. Готелі та ресторани з допомогою національних страв, їхніх ароматів та смаків, а також з допомогою дизайнерських інтер’єрів, які відтворюють відповідну культуру, з допомогою автентичного просторово-предметного оформлення, можуть відтворити відповідну атмосферу і, таким чином, занурити відвідувача у відповідну культуру чи епоху.
Optimizing the LQ45 Stock portfolio using Piecewise Linear Function: A Case Study from an Investor's Point of View
Authors: Azis Chusnul Chatimah , Kankarofi Rabiu Hamisu , Sulaiman Ibrahim Mohammed
Published: February 2024

In optimization problem solving, both linear and nonlinear approaches can be used, with nonlinear programming considering constraints or not. One effective method of nonlinear programming is the Piecewise Linear approach, which breaks down complex nonlinear functions into straight-line segments to make their solution easier. This method can be applied in the financial sphere, such as in stock investment. This study discusses the application of piecewise linear function in optimizing investment portfolios in Bank Jago Tbk. (ARTO), Barito Pacific Tbk. (BRPT), and Go To Gojek Tokopedia Tbk. (GOTO) stocks. The purpose of this study is to provide insight that Piecewise Linear can provide optimal solutions in managing investment portfolios by calculating the risks and returns of selected stocks. The results showed a risk with a level  as big as 0.01, the expected profit from the investment of the three stocks in the calculation period reached Rp 1,803,109. On the other hand, for investors who are more cautious and have a Level  as big as 1, the anticipated profit in the same investment is around Rp 1,275,052.
Multiobjective Optimization of Stock Portofolio
Authors: Cahyandari Rini , Kamelia Susan , Rusyn Volodymyr
Published: February 2024

Diversification is a method used to reduce risks by allocating several financial, industrial, and other instruments. Investors might need to use this method to allocate their companies’ funding as efficient as they should be. Mean variance portfolio is a diversification theory designated for investors who are aware of potential risks. On the other hand, multi-objective portfolio optimization is another theory that suits for investors who are more unaware, or choose to neglect potential business risks. Multi-objective optimization can boost source of income and minimize the risks while utilizing k weighting coefficient as risk aversion index. This research aims to form an optimal portfolio from each perspective of selected investors using multi-objective optimization, as well as to analyze the benefits and risks that the investors will have. Samples used in this research are sharia stocks actively involved in Jakarta Islamic Index (JII) and non-sharia stocks which are actively involved in LQ-45 from January 2013 to January 2018.
ЗМІСТ І PEЗУЛЬТAТИ ПРАКТИЧНОЇ РЕАЛІЗАЦІЇ СТРУКТУРНО-ФУНКЦІОНАЛЬНОЇ МОДЕЛІ СИСТЕМИ УПРАВЛІННЯ ФОРМУВАННЯМ ПРОФЕСІЙНОЇ КОМПЕТЕНТНОСТІ МАЙБУТНІХ УЧИТЕЛІВ ІНФОРМАТИКИ В ПРОЦЕСІ ФАХОВОЇ ПІДГОТОВКИ
Authors: Repko Inna , Shcherbak Iryna
Published: February 2024

Статтю присвячено проблемі теоретико-практичної реалізації структурно-функціональної моделі системи управління формуванням професійної компетентності майбутніх учителів інформатики в процесі фахової підготовки. Висвітлено низку провідних проблем щодо управління формуванням професійної компетентності майбутніх учителів та запропоновано шляхи їх розв’язання: недостатній рівень управління якістю освітнього процесу майбутніх учителів інформатики; недостатній рівень упpaвлiнcькoї кoмпeтeнтності кepiвництвa факультету, кафедр, аналітичного, прогностичного та діагностичного забезпечення планування методичної, дослідницької роботи з науково-педагогічними працівниками; невчасне оновлення технічно-інструметальної бази та програмно-педагогічних засобів, що значно знижує вияв професійної компетентності вчителів інформатики; недостатня сформованість позитивної мотивації майбутніх учителів інформатики в процесі фахової підготовки. Охарактеризовано організаційно-педагогічні умови управління формуванням професійної компетентності в майбутніх учителів інформатики в процесі фахової підготовки: організація та мотивація фахової підготовки й викладацької діяльності; забезпечення активного саморозвитку та самовдосконалення майбутніх учителів інформатики; використання та інтеграція інформаційно-комунікаційних, інноваційних педагогічних технологій в освітній процес; упровадження міждисциплінарних зв’язків. Для аналізу результатів було застосовано кваліметричну модель оцінки формування професійної компетентності майбутніх учителів інформатики. Визначено критерії, показники та відповідні рівня управління формуванням професійної компетентності майбутніх учителів інформатики в процесі фахової підготовки.
STUDY OF THE PHENOMENON «AESTHETIC TASTE OF THE FUTURE TEACHER» IN THE CONDITIONS OF THE POLY ARTS ENVIRONMENT
Authors: Белостоцкая Ольга , Бабынина Юлия
Published: February 2024

The article analyzes the concept of aesthetic taste and investigates the phenomenon of «aesthetic taste of the future teacher» from scientific sources. A system of education of aesthetic taste in future teachers has been formed, which has the following structural components: cognitive, emotional-value, motivational, activity-creative, which are interconnected, mutually conditioned and influence each other. In order to achieve a deeper and more complex development of aesthetic tastes in future teachers, the tool of art polyphony is used, which means the use of various types of art and their interaction. The basis of their system is the types of artistic creativity – music, painting, dance, literature, theater. Each type of art has special mechanisms of influence on the personality: music 276 is a factor of harmonious sounds; painting – lines, colors, plot; dance is a sense of rhythm. Due to their syncretism, choreography and theater integrate several types of art, which contributes to the strongest impact on mental and physiological processes in the human body. Art tools do not exist separately, but form a polyphony of arts, which allows creating artistically perfect works. However, each individual means of art does not have such an educational effect as their complex use. Therefore, the education of the future teacher's aesthetic taste is carried out not thanks to the use of a separate tool, but thanks to art in general.
ОРГАНІЗАЦІЙНО-МЕТОДИЧНІ ЗАСАДИ СИСТЕМИ ОЦІНЮВАННЯ ТЕХНІЧНОЇ КОМПЕТЕНТНОСТІ МАЙБУТНІХ УЧИТЕЛІВ ІНФОРМАТИКИ
Authors: Otroshko Tamara
Published: February 2024

The article highlights and substantiates the organizational and methodological principles of the system for assessing the technical competence of future computer science teachers in the process of teaching computer disciplines. The purpose, tasks, stages and features of the implementation of the author's evaluation system are determined. It was found that the assessment should be based on statistical processing of data, using the Pearson test, as well as checking the influence of the characteristics of the study groups on the results of the study according to the method proposed by N. Bryukhanova. It is proposed to implement a system for evaluating the technical competence of future computer science teachers during the study of such educational components as: «Technical teaching aids», «School course of computer science and teaching methods», «Computer architecture and its basic support», «Programming languages», «Theoretical foundations of informatics», «Computer modeling», etc. Using the example of the educational component «Physical bases of computer systems operation», a program for determining the assessment of technical competence of future teachers has been developed. It is noted that the assessment must take into account the type of class, the number of allocated hours (credits) for study, as well as the assessment of the cognitive and personal components of technical competence. Further experimental verification of the implementation of the evaluation system is determined as a perspective of the research.
УПРОВАДЖЕННЯ СТРУКТУРНО-ФУНКЦІОНАЛЬНОЇ МОДЕЛІ СИСТЕМИ МОНІТОРИНГУ РОЗВИТКУ ОЗДОРОВЧОЇ РУХОВОЇ АКТИВНОСТІ МАЙБУТНІХ УЧИТЕЛІВ ФІЗИЧНОГО ВИХОВАННЯ
Authors: Соколюк Ольга
Published: February 2024

The article highlights the peculiarities of the implementation of the structural-functional model of the system for monitoring the development of health-improving motor activity of future teachers, which consists of three consecutive stages: the creation of a managerial information-analytical laboratory; implementation of managerial, educational-methodical, scientific-pedagogical support of the educational activities of monitoring subjects regarding the professional training of future physical education teachers and the development of health-improving physical activity of future teachers; stage consisted in increasing the effectiveness of the system for monitoring the development of health-improving motor activity of future teachers of physical education through implementation. It is noted that the administrative information and analytical laboratory is the connecting link of the system of monitoring the development of health-improving motor activity of future physical education teachers. Fragments of the author's developments regarding the implementation of activities to stimulate the development of healthy motor activity of future teachers, methodological manuals for motor tests, etc. are highlighted. The perspective of the research is the experimental verification of the author's model.
ПЕДАГОГІЧНІ УМОВИ РЕАЛІЗАЦІЇ КОМПЛЕКСНО-ЦІЛЬОВОЇ ПРОГРАМИ ТЕХНОЛОГІЇ УПРАВЛІННЯ ІННОВАЦІЙНИМ РОЗВИТКОМ ЗАКЛАДУ ДОШКІЛЬНОЇ ОСВІТИ
Authors: Пєхарєва Альона , Pyekharyeva Svitlana
Published: February 2024

The article covers the management system of innovative development institutions in preschool education, containing the goals of innovation management development, approaches, technologies and pedagogical conditions, as well as the organizational structure of management of innovative development and a complex program of technology management of innovative development in preschool education institutions. 752 Important aspects of the introduction of innovations in preschool education have been identified, and a comprehensive and targeted program for effective management of this process has been proposed. The current state of preschool education has been analyzed, and key challenges and opportunities for its innovative development have been identified. Attention is focused on the role of management in the implementation of innovations, and the need to create a comprehensive program that covers various aspects of the activities of a preschool institution is substantiated. The main stages of implementing the technology into the system of managing the innovative development of the preschool education institution were studied. The conditions for the implementation of the complex-target program of innovative development regarding the quality implementation of the process of managing the innovative development of the preschool education institution are highlighted. The issue of forming an innovative culture among the teaching staff, developing the professional competence of educators in the field of innovative education, and involving teachers in active participation in the innovative development of a preschool education institution is highlighted. The signs of expediently defined pedagogical conditions are indicated, according to the key functions that make it possible to implement a comprehensive and targeted program of management of innovative development: innovativeness during the development of the program of management of innovative development; strategies in determining program goals and ways to achieve them; efficiency; purposefulness; ensuring high quality in accordance with expected results; providing feedback.
АНАЛІЗ ТА ІНТЕРПРЕТАЦІЯ РЕЗУЛЬТАТІВ EКCПEPИМEНТAЛЬНOЇ POБOТИ ІЗ ЗAПPOВAДЖEННЯ СИСТЕМИ АДАПТИВНОГО УПРАВЛІННЯ ЯКІСТЮ МУЗИЧНОЇ ОСВІТИ ТА ХУДОЖНЬО-ЕСТЕТИЧНИМ ВИХОВАННЯМ У ЗАКЛАДІ ВИЩОЇ ПЕДАГОГІЧНОЇ ОСВІТИ
Authors: Ульянова Виктория
Published: February 2024

The article deals with the problem of managing the quality of music education and artistic and aesthetic education in an institution of higher pedagogical education. The information obtained during the investigation at the control stage of the experiment is presented. It is noted that the usefulness of the obtained results and conclusions is ensured by the methodological consideration of the original theoretical positions, the critical analysis of the situation of the investigated problem; correspondence of the methods of scientific research with its goals and tasks; combining methods of qualitative and quantitative analysis of experimental material; by applying the methods of static analysis; the positive results of the introduction of a complex system of adaptive management of the quality of music education in the institution of higher pedagogical education. It is noted that the conducted research does not exhaust all the significant problems related to the quality management of musical education in the institution of higher pedagogical education. It allows highlighting those problems that require additional study. Thus, the problem of methodological provision of adaptive management of the quality of music education in institutions of higher pedagogical education in accordance with the new paradigms of higher European education requires further research. It is emphasized that a complete solution to the problem of effective management of the quality of music education in the institution of higher pedagogical education is possible only in close connection with the further practical implementation of his theory within the framework of the problem of the entire higher education development of Ukraine in general.
ФОРМИ І МЕТОДИ ПІДГОТОВКИ МАЙБУТНІХ ВИХОВАТЕЛІВ ДО ПРОФЕСІЙНОЇ САМОРЕАЛІЗАЦІЇ В КОНТЕКСТІ ЄВРОПЕЙСЬКОГО ВИМІРУ УКРАЇНИ
Authors: Yaroslavtseva Milena
Published: February 2024

The article outlines the realities that actualize the need to bring Ukraine’ s institutions closer to the standards of EU countries and, in the coming years, to make them conform to European requirements. An analysis of the researches on the phenomenon of self-realization of the individual in the world of American, European and domestic scientific studies is briefly provided, based on them, the author’ s interpretation of the concepts: self-realization, professional self-realization, professional self-realization of future educators of early and preschool children is presented. It has been proven that along with the introduction of industry standards, educational and professional programs, there is a search for new approaches to the training of specialists, which are aimed at improving qualifications and competitiveness in accordance with European integration trends in the labor market. In the process of the expert survey, pedagogical strategies aimed at achieving successful professional self-realization of education seekers were revealed; the forms and methods that, according to the students of education, most contribute to the formation of their professional self-realization are revealed. The most effective forms of work in the context of the European dimension of Ukraine are defined as: problematic lectures and seminars within the framework of studying the educational component «Introduction to the specialty», master classes of professional direction on the topics «I am a future teacher», «European geocaching and quest-geocaching technologies at work with children of preschool age», «Integration of quest-games and games-classes with elements of geocaching into the educational process of a preschool education institution», «Famous European educators», «European practices of working with children with special educational needs»; essay contest on the topics: «My professional credo», «Stress resistance is the first thing that employers in Ukraine pay attention to», etc.; study of the special course; work in a creative group; pedagogical exhibitions; reflective trainings. Working methods include an electronic portfolio, a reflexive council, a reflexive debate and a reflexive interview.
A IMPORTÂNCIA DA GESTÃO ESCOLAR
Authors: Silva Gabriel Bezerra
Published: February 2024

O presente artigo tem como finalidade principal fazer uma abordagem acerca da importância do gestor escolar bem com o seu papel diante da possibilidade de garantir o bom funcionamento da instituição escolar. Para tal, foi preciso realizar uma revisão bibliográfica sobre o tema em estudo. Ao final da pesquisa foi possível entender melhor sobre gestão, como ela ocorre, quais os tipos e como o gestor seja ele na função de diretor, coordenador, secretário, supervisor ou administrador pode e dever elaborar estratégias para que o ambiente escolar seja um espaço favorável ao ensino e aprendizagem de qualidade.
The Effect of Compensation, Work Motivation and Work Discipline on the Performance of PT. Khong Guan
Authors: Sulaeman Ahmad Fauzi , Krisnandi Herry , Digdowiseiso Kumba , Aziz Nazli
Published: February 2024

This research aimed to analyze the impact of compensation factors, work motivation, and work discipline on employee performance through quantitative methods, employing primary data from 141 distributed questionnaires. The study employed descriptive and inferential analyses, encompassing instrument test analysis, model feasibility test, multiple linear regression correlation analysis, and hypothesis tests. The regression analysis revealed a positive influence on performance, as indicated by the equation Performance = 0.361 K + 0.226 M.K + 0.273 D.K. The feasibility test affirmed the model's significance (p-value = 0.000), signifying that all independent variables significantly influence performance. Hypothesis testing demonstrated significant values for compensation (0.000), work motivation (0.002), and work discipline (0.000), supporting the acceptance of hypotheses. Management is advised to prioritize the compensation factor with the greatest contribution to PT Khong Guan employees' performance. Addressing employees' perceptions and fostering motivation and discipline can enhance overall company goals. Including a sentence about potential areas for future research based on the findings would provide a forward-looking perspective.
Pengaruh Beban Kerja Terhadap Kinerja Karyawan dengan Kelelahan Emosional Sebagai Mediator pada Perguruan Tinggi Islam di Jawa Tengah
Authors: Normalita Sari Astri
Published: February 2024

The aim of this research is to analyze the influence of workload on employee performance with emotional exhaustion as a mediating variable at Islamic Universities in Central Java. This type of research is quantitative research. The data collection technique used is a questionnaire with variable measurement using a Likert scale for each statement developed from the variable indicators. The sample in the study amounted to 93 respondents. The sampling technique is purposive sampling. The data analysis technique in this research uses Structural Equation Modeling (SEM) SmartPls 4.0. The results of the research show that: 1) There is a negative and significant direct influence between workload on employee performance for employees of Islamic Universities in Central Java. 2) There is a positive and significant direct effect between workload on emotional exhaustion in employees of Islamic Universities in Central Java.
ORBITRON PUMP WITH NITROGEN CRYOPANEL
Authors: Loboda V. , Zubko V. , Khursenko S. , Kravchenko V. , Chepizhnyi А.
Published: February 2024

The article presents the results of a study of the operation of a vacuum orbitron getter-ion pump (OGIP) with a nitrogen cryopanel. The design features of the orbitron pump and its operating modes are described. The composition of the residual atmosphere (MX7304A mass spectrometer) of the vacuum chamber during its pumping out by the OGIP to ultrahigh vacuum has been studied. It has been established that there are no heavy hydrocarbons in the chamber, and methane is not its main component and does not determine the ultimate pressure of the pump. In an insufficiently heated vacuum chamber at Р = 2∙10-8 Pa, the main component of the residual atmosphere is water vapor. Therefore, with further thorough degassing of the vacuum chamber, the use of OGIP with a nitrogen
cryopanel makes it possible to obtain an ultra-high oil-free vacuum better than 10-8
Pa.