bluuebunny/crossref_metadata_2025 huggingface dataset:
О распределении собственных чисел ядерных операторов
Authors: Reinov Oleg Ivanovich
Published: August 2024

Показывается, как некоторые новые результаты в теории детерминантов и следов
могут быть применены для получения новых теорем о распределении собственных чисел ядерных операторов в банаховых пространствах
и о совпадении спектральных и ядерных следов таких операторов. В качестве примеров рассматриваются новые
классы операторов - обобщенные ядерные операторы Лапресте (Lapresté).
Квазидифференцирования алгебры $U\mathfrak{gl}_n$ и квантовые алгебры Мищенко-Фоменко
Authors: Sharygin Georgii Igor'evich
Published: August 2024

Квазидифференцирования универсальной обертывающей алгебры $U\mathfrak{gl}_n$ были введены Д. Гуревичем, П. Пятовым и П. Сапоновым при изучении алгебр уравнения отражения; это линейные операторы на $U\mathfrak{gl}_n$, удовлетворяющие определенным алгебраическим условиям, обобщающим тождество Лейбница. Мы показываем, что в результате применения итерированного оператора, равного линейной комбинации квазидифференцирований, к хорошим образующим центра $U\mathfrak{gl}_n$ (симметрированным коэффициентам характеристического многочлена матрицы) получаются коммутирующие элементы. Поcтроенная таким образом алгебра совпадает с квантовой алгеброй Мищенко-Фоменко в $U\mathfrak{gl}_n$, рассмотренной ранее А. А. Тарасовым, Л. Г. Рыбниковым, А. И. Молевым и др.
Обобщенные неравенства Коши-Буняковского-Шварца и их приложения
Authors: Nuraei Rahele , Hosseini Mahta , Hosseini Mohsen Shah
Published: August 2024

Предлагаются обобщения и уточнения некоторых неравенств типа Коши-Буняковского-Шварца. В качестве приложения мы получаем улучшенные оценки числового радиуса для операторов в гильбертовых пространствах. Кроме того, мы устанавливаем оценки числового радиуса, которые включают геометрически выпуклые функции.
Study of Thermochemical and Transport Properties of Biodiesel from

Azadirachta indica
Authors: Ayissi Merlin Zacharie , Mouzong Francis Bongne , Mohamed Bencherif , Obounou Akong Marcel Brice , Mouangue Ruben
Published: August 2024

This study proposes an investigation of the thermochemical and transport
properties of biodiesel from Azadirachta indica (neem
biodiesel). These properties are important in the CFD modeling process of
hydrocarbon combustion. Two groups of properties are taken into account: on the
one hand, the primary properties such as critical pressure, critical volume,
critical temperature, boiling temperature, and normal melting point; on the
other hand, secondary properties such as vapor pressure, liquid viscosity,
latent heat of vaporization, liquid mass density, and surface tension. The group
contribution model takes into account second-order groups used for the
predictive proposition of primary properties. The secondary properties are
generated by matrix programming of the available data. The primary properties
thus determined are used as a digital database. After setting the boundary
conditions, matrix writings are developed in the MATLAB code. The rendering
obtained is exported in the form of a characteristic point gradient at the
dependent parameter studied. The values obtained are as follows: 12.27 bar,
1111.39 cm3/mol, 752.72 bar, 587.35 K, and 334.70 K representing,
respectively, the critical pressure, the critical volume, the critical
temperature, the boiling temperature, and the normal melting point.
Exploring the effect of Covid-19 on usage of virtual library services at the University for Development Studies Library
Authors: Akeriwe Miriam Linda , Bumbie-Chi Deborah Mwintierong , Alua Mary Ann
Published: August 2024

Providing access to resources for teaching, learning and research is core to services rendered by libraries and librarians. The advent of the novel Coronavirus onto the global landscape has had major implications for libraries. This study was carried out to explore the effect of the Covid-19 pandemic on the usage of virtual services and platforms at the University for Development Studies (UDS) Library. The study adopted a quantitative method by conducting a comparative analysis of patrons’ usage of virtual library services prior to and during Covid-19. The usage statistics from the UDS library’s various virtual service delivery platforms constituted the data for this study. The findings revealed significant increases in usage of the virtual library’s services across the selected platforms and usage patterns, which provides statistical data on changes in usage of virtual platforms for library service delivery to enhance planning. The way forward is to intensify trainings to ensure that users have access to these platforms and services while addressing limitations that interrupt service provision.
Performances of Maize Grown as Intercrop with Cowpea under Different Planting Patterns
Authors: Adebayo A. K. , Anjorin F. B. , Olanipekun S. O. , Aluko O. A. , Adewumi A. D.
Published: August 2024

A field experiment conducted in two different agro ecologies, Ibadan and Ilora in southwest Nigeria, explored the benefits of intercropping and the impact of varying plant populations on crop yield. The study focused on three different maize varieties (Quality protein maize, high protein maize, and the farmer's variety SUWAN-1-SR-Y) intercropped with Cowpea (Ife brown) under different cropping patterns (0.9x0.4 m and 1.0x0.5 m). The experiment was carried out in split design using randomized complete block design (RCBD) (r=4). The results of the experiment demonstrated that the performance of maize when intercropped with cowpea at wider spacing (1.0x0.5 m) outperformed maize planted at closer spacing (0.9x0.4 m) in both locations. This finding suggests that the wider spacing between crops had a positive impact on crop growth and yield in both agro ecologies. The study revealed that the farmer's variety, SUWAN-1-SR-Y, exhibited superior growth and grain yield compared to the other improved maize varieties when grown both as intercrops and as sole crops. This finding highlights the resilience and adaptability of the farmer's variety, which performed well in different cropping systems. The research noted variations in maize yield between the two locations, with Ibadan recording higher yields compared to Ilora. This difference in yield could be attributed to variations in climatic conditions between the two regions which significantly influence maize performance. The results obtained indicate that intercropping maize with cowpea at wider plant spacing (1.0x 0.5m) enhanced maize performance compared to closer spacing (0.9x 0.4m).
Comparative Analysis of Spatial Impact of 2012 and 2022 Flood Disaster along Lower Niger Basin in Nigeria
Authors: Achuchaogu U. E. , Duru U. U. , Ikwuemesi G. O.
Published: August 2024

In recent times there have been excess flooding due to climate change, which leads to disaster and destruction. Hence the aim of this paper is to investigate spatial impact of the two flood episodes that occurred in 2012 and 2022 along Lower Niger Basin in Nigeria using remote sensing data in GIS environment. Data used include administrative map of Nigeria, time series 30m resolution Landsat imageries captured before and during the peak of the flood episodes, SRTM DEM of 30m resolution and data generated from ground truthing. The pre- flood image was used as reference to determine the extent of flood in the disaster imageries. SRTM data was used for preparation of digital elevation model so as to investigate the influence of topography on spatial spread. This study revealed that 5622.13square kilometers of the study area (7.92%) was covered by flood in 2012 while 7428.771 square kilometers of land (10.47%) was inundated in 2022. This means that additional 1806.641 square kilometers (2.55%) of land surface has been exposed to flood in the study area within a time space of 10years. Upon field verification it was found that this was partly attributed to anthropogenic activities and urban expansion. It was therefore recommended that strict land use planning be enforced within the study area and public enlightenment programs should be initiated.
Making the Case for Development of Forensic Science in a Developing Country with Emphasis on Forensic Pharmacology: The Nigerian Perspective
Authors: Umukoro E. K. , Elijah O. B. , Igben V. O. , Chidebe E. O. , Moke E. G.
Published: August 2024

Forensic evidence has for long been accepted globally and is widely considered infallible in the investigation of crime and the procurement of justice; however its utilization and development still appear to lag behind in developing countries such as Nigeria. Online sources published between 2003 and 2023. Data obtained show that forensic pharmacology is at best rudimentary in Nigeria. The need for advancement of forensic science and by extension forensic pharmacology cannot be over-emphasized in Nigeria. Legislation, technology, infrastructure, training and capacity building are necessary tools for the advancement of forensic pharmacology.
Assessment to Identify the Role of Community Pharmacy Practices in Major Cities in Delta State, Nigeria
Authors: Osarenmwinda M. I. , Arute J. E.
Published: August 2024

Globally, millions of people seek their healthcare needs from community pharmacists because they are the most accessible health professionals. Therefore, the objective of this paper is to identify the role of community pharmacist practices in major cities in Delta State, Nigeria. Data were collected using a standard self-structured, pre-tested questionnaire in a cross-sectional survey on the opinions of the activities of 145 pharmacists across community pharmacies in Delta State, Nigeria. Data analysis was carried out using descriptive statistics. All (100%) of the respondents checked for blood pressure. The majority (83.5%) offered routine activities (consultation services and counseling) to doctors and patients. Most (82.1%) assessed patients with diabetes; this was significantly influenced by gender (χ2 = 4.63; p = 0.044), ownership (χ2 = 50.669; p = 0.000), position (χ2 = 18.598; p = 0.000), and proximity to a private hospital (χ2 = 12.616; p = 0.000). A lot (73.1%) dressed wound of accident/surgery victims and was significantly associated with gender (χ2 = 20.30; p = 0.000), age (χ2 = 11.77; p = 0.008), marital status (χ2 = 47.126; p = 0.000) and ownership status (χ2 = 7.375; p = 0.025). Awareness of routine activities performed by community pharmacists was associated with gender (χ2 = 10.337; p = 0.006) and qualification (χ2 = 11.678; p = 0.009). Services rendered by community pharmacies in major cities in Delta State are diverse and range from consultation with doctors to patient assessment and counseling services.
Assessment of Phytochemical, Antimicrobial and Haematological Activity of Synergistic Ethanolic Extracts of Azadirachta indica and Psidium guajava against Selected Enteric Pathogens
Authors: Isichei-Ukah O. B. , Uwah E. S.
Published: August 2024

Azadirachta indica (neem) and Psidium guajava (guava) are well known therapeutic plants used to manage various diseases. Hence, this paper is an assessment of phytochemical, antimicrobial and haematological activity of synergistic ethanolic extracts of Azadirachta indica and Psidium guajava against selected enteric pathogens using standard procedures. Results of the phytochemical analysis showed the presence of tannins, saponins, flavonoid and phenols in the plants. The ethanolic extract of the leaves were active against the organisms, with Salmonella having the highest zone of inhibition and Staphylococcus aureus having the least zones of inhibition at all concentrations tested. There was no significant weight change (p>0.05), toxicity nor mortality recorded for the period. The results of the haematological parameters for the experimental rats showed increases in red blood cells and haemoglobin; and decrease in white blood cells, lymphocytes, granulocytes and platelets, but not statistically significant (p>0.05). The study established that the synergistic effect of ethanol extract of the plant leaves could be a possible source of novel broad spectrum medicine for treating diseases.
Evaluation of Bacterial Load in Four Commercially Sold Yoghurts in Warri, Delta State, Nigeria
Authors: Dengimo K. , Teke E. C.
Published: August 2024

The major ingredient in ice-cream a popular children favourite snack, commonly sold to them at their school gate during the dry season is yoghurt. Therefore this paper investigates the bacteria load in these yoghurt ice-creams are important as they determine the health of the consumers. The bacteria load of four commercially sold yoghurt samples in Warri, Delta State, Nigeria using standard methods. Results reveal the presence of Streptococcus thermophilus, Streptococcus salivarius and Lactobacillus bulgaricus spp. The highest number of colonies were observed in CS1[NA, 232 and PC, 218] and CS2 [NA, 282 and PC, 91] while lower number of colonies were observed in HO [NA, 120 and PC, 90] and for NY [NA, 118 and PC, 112]. It was observed that Colony Forming Units for Nutrient Agar (NA) were consistently higher in all four brands of yoghurt than Colony Forming Units for Plate Count Agar. An average of 157 colonies were observed on both nutrient Agar and Plate count Agar. Colonies observed was similar in both Plate Count Agar and Nutrient Agar in the 4 brands of yoghurt. All the isolates were highly susceptible to Norfloxacin and resistant to Gentamicin, Drovid and Clindamycin. The results of the microbial quality indicate that the yoghurt are of acceptable food quality, with probiotic potential.
Factors Associated with Readership of Journal of the Nigerian Optometric Association - A Cross-sectional Study of Nigerian Optometrists
Authors: Ekpenyong Bernadine Nsa , Ovenseri-Ogbomo Godwin , Osuagwu Uchechukwu Levi , Akujobi Augustine  Ugochukwu , Charles Kindness , Ebisike Philips Ifeanyichukwu , Mezu-Nnabue Kelechi , Ubani Udo , Ejinkeonye Ikenna , Nwokedi Ogechi , Oghre Eki , Ikoro Nwakaego
Published: August 2024

Background: Academic journals are often the primary repositories of evidence-based practice (EBP) which is an essential component of  good quality, patient-centred health care. Although medical journals shape clinical practice and decision-making, there is a backdrop of  perceived reader apathy. Here, we describe the readership of the Journal of the Nigerian Optometric Association (JNOA), investigate the attitudes and perceived barriers towards the JNOA.
Methods: Of the 155 optometrists surveyed, aged 39.0 ± 9.8 years, 13 (8.4%) were  researchers/ academics, and majority were women (n=83, 53.5%). Participants’ reading pattern, perception of the articles, suggestions on  what could motivate them to read the journal articles were assessed. Chi-square test determined the association between journal  readership and individual variables.
Results: Although majority of the participants (90.2%) said their clinical practice was guided by  evidence, 53% read a scientific article at least once a month, and only 41% (mostly younger optometrists aged 20-40years) with fewer  years of practice experience read the JNOA. Those concerned about the length of the articles (67%, p=0.015) or who felt the articles lacked  clinical relevance (75%, p=0.002) were less likely to read JNOA. Presentation format (electronic or hard copies) had no significant  effect on readership. Participants felt that providing updates on current clinical practice, and having a continuing professional  development (CPD) article in JNOA could encourage readership.
Conclusion: Overall, readership of JNOA was low among members with  length of articles and lack of clinical relevance perceived as barriers. Including CPD articles and sections like clinical relevance may  improve readership of JNOA.
New Trends in Neuro-protection in Glaucoma
Authors: Omaka Andrew U. , Ezeigbo Amarachi
Published: August 2024

Recent advancements in neuroprotection for glaucoma have seen a shift towards multifaceted approaches targeting various aspects of  the disease's pathophysiology. Traditional strategies were primarily focused on lowering intraocular pressure (IOP) but emerging trends  highlight the importance of preserving retinal ganglion cells (RGCs) and their axons. Novel therapeutics aim to enhance neurotrophic  support, reduce excitotoxicity, and mitigate oxidative stress, complementing IOP-lowering therapies for comprehensive management.  Stem cell therapies, neurotrophic factors, and gene therapies show promise in promoting RGC survival and axonal regeneration.  Additionally, the repurposing of existing drugs, such as calcium channel blockers and anti-inflammatory agents, for neuro-protection in  glaucoma underscores the importance of exploring diverse mechanisms. These innovative approaches represent a paradigm shift in  glaucoma management, emphasizing the need for a holistic approach targeting both IOP and neuroprotection to preserve vision  effectively.
Case report on scleral lens management of corneal irregularity secondary to oculocutaneous Albinism
Authors: Samssedi John
Published: August 2024

The purpose of this case report is to show the benefits of scleral lenses in the management of corneal irregularity and primary corneal  ectasia. Scleral lenses are special corneal gas permeable lenses designed with a larger diameter to rest on the conjunctiva and vault over  the cornea. This way, the lenses replace the damaged cornea with a smooth, uniform, regular surface that corrects the visual distortions  caused by an irregular cornea. Scleral lenses provide optimization of vision with additional benefits of protection and continuous  hydration of the ocular surface through the post-lens tear reservoir. In Nigeria, scleral lenses are a new line of treatment that is rapidly  becoming a valuable treatment option in the management of irregular astigmatism, corneal irregularity, and ocular surface diseases like  keratoconus, keratoglobus, and pellucid marginal degeneration. This is a case of a teenage Nigerian girl with oculocutaneous albinism,   nystagmus, and irregular astigmatism.
Industrial Conflict; Albatross to University Growth: Periscoping Federal Universities in South East Nigeria 2011-2022
Authors: Onyezere Chima , Chukwuemeka Emma , Oforleta Chizoba
Published: August 2024

It has been observed that the rate of lock out, forced suspension of academic activities in the Universities in Nigeria is becoming alarming. On this backdrop, this Study examines Industrial Conflict and Growth of Federal Universities in the South East Nigeria.2011-2022. Three hypotheses were formulated for the Study. The Study was carried out in the five (5) Federal Universities in South-East Nigeria. The Population of the Study was 9,177 while Taro Yamane formula was used to draw 383. However, in the cause of administering and retrieval of the instruments, 350 were retrieved which served as sample for the Study. The major finding revealed that, if Industrial conflict is properly resolved in the University system, it will enhance the growth of universities in Nigeria. It was therefore recommended that efforts should be put in place by all stakeholders to address with a view to bringing a lasting solution to the quagmire. Again, the relationship between ASUU and the federal government should be one devoid of conflict so as to enhance the Performance of the Academic Staff in Federal Universities. Finally, adequate Strategies should be adoptedto ameliorate the lingering Conflicts between the Academic Staff Union of Universities and the Federal Government of Nigeria.
E-Governance and Improved Public Revenue Generation in Nigeria: Issues and Prospects
Authors: Asomba Ifeyinwa , Ejim Chidinma , Onyia Onyedikachi , Orji Ogochukwu
Published: August 2024

The study examined E-governance and improved Public Revenue Generation in Nigeria, Issues and Prospects. The study was guided by three objectives. The study employed a documentary research approach. The study revealed that the implementation of e-government systems in Nigeria has significantly enhanced the efficiency of revenue collection processes, that E-government has notably increased transparency in Nigeria's public revenue systems through real-time access to financial data, improved accountability in spending, and enhanced citizen engagement and that the adoption of e-government systems in Nigeria's revenue generation sector faces significant challenges including the digital divide, cybersecurity threats, bureaucratic resistance, and inadequate legal frameworks.  The study concluded that e-government presents a transformative opportunity for enhancing public revenue generation in Nigeria, despite encountering significant challenges. By streamlining administrative processes, increasing transparency, and fostering citizen engagement, e-government has the potential to improve efficiency and accountability in revenue collection.  The study recommended that to strengthen cybersecurity measures to safeguard sensitive financial data and build trust in e-government systems. Robust policies and technologies must be implemented to mitigate cyber threats and protect against potential breaches
Implications of New Public Management Strategy on Performance of Selected Public Enterprises in Ebonyi State Nigeria
Authors: Ndukwe Chinyere , Ede Ede , Odo Stephen
Published: August 2024

In recent years, researchers and practitioners in the field of Public Administration have been concerned about public sector Performance and advocated the adopti­on of management practices from the private sec­tor in the public sector for improvement. In view of the above, the study examined “Implications of New Public Management Strategy on Performance of selected Public Enterprises in Ebonyi State”. Content analysis technique was adopted. Findings revealed that State; new public management will significantly improve revenue generation by public enterprises in Ebonyi State; new public management will significantly promote satisfaction of needs of the customers by public enterprises in Ebonyi State; and new public management will positively enhance employment generation by public enterprises in Ebonyi State. The implication being that management of public enterprises has depended on civil service mentality and this has accounted for recurrent failure of these enterprises in providing desired public goods and services for the wellbeing of the people. The study therefore recommended that there is need to invent new public management in order to improve revenue generation by public enterprises in Ebonyi State. There is need for public enterprises to adopt new public management strategy to promote satisfaction of needs of the customers by public enterprises in Ebonyi State. Public enterprises managers should as a matter of urgency apply new public management to enhance employment generation by public enterprises in Ebonyi State.
The effects of cassava peel content on mechanical properties of low-density polyethylene (LDPE) composites
Authors: Manya Jacqueleen , Bwankwot Manasseh T. , Kambai Emmanuel Duniya , Shaibu John
Published: August 2024

Polymer matrix composites (PMCs) have garnered significant attention in both academic and industrial research due to the growing demand for environmentally friendly and biodegradable materials. This study focuses on exploring alternative options to synthetic materials by investigating composites of polymers with natural fibers. Specifically, the influence of varying cassava peel powder concentrations as a filler on the tensile, flexural, and hardness properties of pure low-density polyethylene (LDPE) samples was examined. The natural fiber, cassava peel, underwent treatment with a 2% NaOH solution before being compounded with LDPE on a two-roll mill to create a biocomposites. The compounded samples were moulded into uniform thickness (3mm) rectangular shapes using a compression moulding machine at a pressure of 4MPa for 5 minutes. This process was repeated for different filler concentrations. The mechanical properties of the produced composites, including tensile strength, flexural strength, and hardness, were then tested. The results showed that the tensile strength initially increased from 17.83 MPa to 20.20 MPa and subsequently decreased at filler concentrations of 20%, 30%, 40%, and 50% to 14.7 MPa, 8.58 MPa, 6.12 MPa, and 5.26 MPa, respectively. Flexural strength decreased with increasing cassava peel powder loading, ranging from 22.22 MPa (0% loading) to 6.22 MPa (50% loading). Hardness also exhibited an increasing trend with fiber loading, starting at 10.9 HV (0% loading) and reaching 32.62 HV at 50% loading.
Spatial assessment of groundwater quality in Panteka Market Tudun Nupawa, Kaduna, Nigeria
Authors: Mustapha Maryam Mustapha, , Balarabe Muhammad , Bilal Badamasi Ibrahim
Published: August 2024

Water quality is inherently linked with human health, poverty reduction, gender equality, food security, livelihoods and the preservation of ecosystems, as well as economic growth and social development of our societies. Hence, this research work focuses on Spatial Assessment of Groundwater Quality in Panteka Market Tudun Nupawa, Kaduna, Nigeria. Ten (10) hand dug wells were sample from the study area. The microbial and physico-chemical parameters were analyzed in the laboratory and the data analysis was conducted using SPSS. The results of physiochemical revealed that; Total hardness (TD) ranged between 175-348, Total dissolved Solids (TDS) ranged between 225-645mg/L, Electrical Conductivity (EC) ranged between 451-1,292, Salinity ranged between 29-409. For heavy metals, Lead was higher than the limits given by WHO and Nigerian Standard for Drinking Water Quality (NSDWQ) in 8 sampled wells, and the remaining 2 wells were found 'not detected'. The physicochemical parameters of the samples examined when compared with the WHO standard indicate that some of the parameters are slightly below the WHO standard while others were within the permissible limits of WHO standard for drinking water. The study concluded that water in all the sampled hand-dug wells are not fit for consumption without treatment, because of the deteriorating state of the groundwater in respect to microbiological conditions found. It also recommend that Government should encourage and finance groundwater research by water chemist and scientists to detect areas that can easily pollute groundwater.
A review of data analytic algorithms for outlier detection on the internet of things ecosystem
Authors: Iwomi Onyemaechi Joel , Abel Edje E. , Omede Gracious , Atonuje Ephraim , Ogeh Clement , Akazue Maureen  I. , Apanapudor Joshua Sarduana
Published: August 2024

In the last few years, outlier detection has drawn a lot of attention. New technologies, including the Internet of Things (IoT), are recognized as one of the most important sources of data streams, continuously producing enormous amounts of data from several applications. Reducing functional hazards and avoiding hidden problems that result in application downtime can be achieved by looking through this gathered data to identify suspicious events. This paper presents a review of existing algorithms deployed on Internet of things ecosystem that resolved the challenges of data outliers. It further highlights the problems solved, the results and the weaknesses of the existing algorithms. Also, presented a detailed discussion on various programming language and simulation tools adopted to implement and conduct experiment on the prevailing algorithms; as well as metrics used to evaluate their performances. It was discovered that metrics such as accuracy, precision, recall, specificity are mostly adopted as metrics for performance evaluation of the algorithms. Additionally, python programming language and Microsoft Studio IDE simulation tools were mostly used for the development and test-running of the existing algorithms.
Development of an enhanced naive bayes algorithm for fake news classification
Authors: Matemilola Alice Sikemi , Aliyu Salisu
Published: August 2024

The proliferation of fake news on social media has become a major concern in recent times with a growing body of research focusing on understanding and detecting these false stories. Fake news can lead to the spread of misinformation, polarization and mistrust between different groups, manipulation, damage to reputation, eroding public trust in media, interfering with democratic processes, and having significant economic impact. It can create confusion and mistrust, making it difficult for people to distinguish between credible and non-credible sources of information. Several researchers have proposed and deployed several conventional techniques to detect fake news from true news. In recent times, Machine learning techniques like the Random Forest (RF), Naive Bayes (NB), Passive Aggressive (PA) among others has been used for fake news detection. Naïve Bayes has been shown to perform poorly due to its assumption of independent features/attributes and also computationally expensive when sparse matrix generated from textual data are converted to dense matrix before use by the algorithm. Against the backdrop of these enhancements, we evaluated the performance of the Naive Bayes classifier and calculated key metrics such as Accuracy (ACC), Precision (PRE), Recall (REC), and F1 Score (F1) for the BuzzFeed News dataset. The results showed an accuracy of 99%, demonstrating the effectiveness of the model. Comparison of the performance accuracy of Random Forest (RF), Naive Bayes (NB), and Passive Aggressive (PA) classifiers with and without text pre-processing was carried out in this study. Naive Bayes emerged as the most effective model in predicting fake and authentic news with 99% accuracy when applied to the body feature matrix without pre-processing. The Naive Bayes classifier, when integrated with Gradient Boost, outperformed both the Passive Aggressive and Random Forest classifiers in this study. Our approach contributes to the ongoing efforts to combat misinformation in online platforms and enhance the credibility of information dissemination. The scores of the Random Forests, Naïve Bayes and Passive Aggressive are as follows 80%, 69%, 87% while that of the new model was 99%.
Decreasing the glycaemic index of white bread using finger millet flour and its effect on postprandial blood glucose response on Wistar rats
Authors: Yakubu Aliyu , Bako Hauwa’u Yakubu , Jaafaru Mohammed Sani , Harun Salima Yusuf , Abubakar Rabiat
Published: August 2024

Low glycemic index (GI) diets have been recommended for the prevention and treatment of chronic diseases including diabetes, obesity, cancer and cardiovascular diseases. One of the high glycemic index diets consumed daily by many people around the world is the white bread, which is rich in carbohydrates. This study aimed at reducing the glycemic index of white bread by modifying the recipe with finger millet flour and to determine its effect on postprandial blood glucose response on Wister rats. Rats were grouped into five groups (n=5); group I normal control rats feed with white bread only (PC), group II fed with bread made from 15% finger millet composite flour (15%), group III fed with bread made from composite flour of 30% finger millet (30%), group IV fed with standard diabetic bread (commercially available) and group V rats were fed with standard commercial rat feed (NC). The rats were fasted overnight and fed with the bread samples. Blood glucose levels of all the rats were measured using glucometer by pricking the tail vein, at intervals of 0, 30, 60, 90 and 120 mins. From the result obtained, 30% showed lower postprandial blood glucose responses when compared to PC, 15% and NC group (p ≥ 0.05) and the AUC result showed increased clearance of blood glucose in 30% group when compared with the PC, 15% and NC group. In conclusion, decreasing the glycemic index of white bread with finger millet composite flour can reduce postprandial blood glucose level and also increase the clearance of blood glucose from circulation.
Growth kinetics of Streptococcus salivarious subsp. Thermophilus and Lactobacillus delbrueckii subsp. Bulgaricus starter cultures during fermentation of acha (digitaria exilis, stapf) based milk
Authors: Amapu T.Y. , Dapiya H.S. , Ajisefinni O.D. , Gusse D.D. , Dashen M.M. , Davou K.V. , Nkup J.Y.
Published: August 2024

This study determined the growth kinetic (maximal specific growth rate (h-1), generation time (h), and viability (CFU/ml) of yogurt starter cultures; Streptococcus salivarious subsp. thermophilus and Lactobacillus delbrueckii subsp. bulgaricus in acha (Digitaria exilis, Stapf) based milk was carried out. Acha-based milk was extracted, batch pasteurized in an Erlenmeyer flask, and inoculation with 3% yogurt cultures (Direct Vat type (DVS) Yo mix consisting of Streptococcus salivrarious subsp. thermophilus and Lactobacillus delbrueckii subsp. bulgaricus in ratio 1:1 The result showed that Streptococcus thermophilus counts increased from 4.00 x 106 to 2.40 x 108 (CFU /ml) at an extended time of 6 h, while Lactobacillus bulgaricus counts increased from 5.00 x 106 (CFU /ml) to a maximum count of 1.42 x 108 (CFU /ml) at 5 h during acha milk fermentation. Comparatively, Streptococcus thermophilus count increased from 6.80 x 107 to 1.70 x 108 (CFU /ml), while that of Lactobacillus bulgaricus increased from 1.20 x 107 to 9.60 x 107 (CFU /ml) after 6 h of fermentation in the dairy milk. The maximum specific growth rate of 0.406 h1 and doubling time (td) of 102 min was registered for Lactobacillus bulgaricus, while Streptococcus thermophilus exhibited higher growth with a specific growth rate of 0.416 h-1 at a doubling time of 100 min. The acidifying activity of the lactic acid bacteria showed a lower rate of 0.619 h-1 in the acha milk compared with 1.136 h-1 observed in the dairy milk. The curdling time for the acha milk occurred 1.5 hours after that of the control. These findings confirmed the possibility of producing yogurt from ‘acha’ based milk as an alternative to conventional cow milk-based yogurt.
The interplay between malaria vector population, seasons, and malaria prevalence
Authors: Aju-Ameh C.O. , Awolola T.S. , Mwansat G.S. , Mafuyai H.B.
Published: August 2024

A retrospective scrutiny of dataset from a semi-longitudinal investigation reveals a dynamic interaction between seasons, vector population density and malaria prevalence. Indoor resting mosquitoes collected between the hours of 06:00 and 09:00 using Pyrethrum Spray Catch (PSC), were preserved dry over silica gel and used for morphological and molecular identification. Asymptomatic malaria prevalence was determined through Rapid Diagnostic Test (RDT), Microscopy test and PCR. A line list hospital attendance record was collated to explore the symptomatic malaria situation. Metrological data was collected from a weather station in the study community to see impact of some weather elements on the malaria situation. The four seasons under study shows a progressive increase in vector population density with increase in rainfall. A strong positive correlation exists between vector population and asymptomatic malaria prevalence [PCRtest-R2=0.439(43.9%); RDT+MicroT -R2=0.425(42.5%); RDT- R2=0.342(34.2%)]. Symptomatic malaria peaked during the dry season (12.54%) with lower vector density while onset of rains with higher vector density recorded the least (4.7%). Established here is a dynamic interaction between malaria vector population, prevalence and the environmental landscape; hence the imperative for an ecological input in the face of fluctuating climatic elements.
The occurrence of ambergris in sperm whales caught by Soviet whaling flotillas
Authors: Mikhalev Yuriy
Published: August 2024

Ambergris is a solid waxy secretion of the digestive system of sperm whales, historically used in the perfume industry. The original documentation of 29 cruises made by the scientific groups of the Soviet whaling flotillas “Slava”, “Soviet Ukraine” and “Yuri Dolgoruky”, between 1961 and 1978 were analyzed for the presence of ambergris. In total, 59 814 sperm whales (Physeter macrocephalus) were examined, with ambergris found in 240 specimens (0.4 %), of which 159 were males (0.44 %, n = 35 994) and 81 females (0.34 %, n = 23 820). The average weight of ambergris was 18.3 kg (17.9 kg in males and 19 kg in females). Two isolated sperm whale herds, south of Madagascar and south of New Zealand and Tasmania, contained the largest ambergris secretions.
Practical aspects of the independent work of the accompanist
Authors: Boіko Iryna
Published: August 2024

The content of the article is devoted to the study of the features of accompanist activity, namely the practical aspects of independent individual work. Due to the fact that research on the individual independent work of specialists in the art field, namely accompaniment, is not enough, the author of the article, on the basis of his own experience and performing practice, outlined and described practical recommendations for accompanists in independent work on the study of a musical work. The article reveals important aspects of the work of the accompanist. The personal qualities, abilities and skills that an accompanist must have for full-fledged professional activity are described. The article highlights the main components of the individual independent work of the accompanist, techniques and methods for improving his professional skills. A certain range of tasks and methods is outlined when working in a vocal class, a choral conducting class, with choral groups and instrumentalists. The main means of overcoming difficulties when working with musical works and texts are analyzed, namely a deep knowledge of the theory and history of music, pedagogy, psychology and musical performance, as well as the use of modern musical technologies. The article outlined and described the stages of the accompanist's independent work - learning and playing a musical work. His own method of studying the piano part is revealed. Seven stages of individual work were considered, each of which describes the sequence of actions and methods for improving the study of one’s own part, namely: familiarization with a piece of music; learning and playing in your own party; study of the soloist's part; playing with a soloist; joint performance of a piece of music; concert preparation and, in fact, concert performance of the program.
IgD Multiple Myeloma Complicated of Acquired Factor XI Deficiency: A Case Report
Authors: Alami Drideb Noufissa , Bouchnafati Sanae , Saloua Saoudi Saloua , Masrour Hajar , Ouazzani Maha , Oubelkacem Naoual , Bouzayd Mounia , Khammar Zineb , Berrady Rhizlane
Published: August 2024

IgD multiple myeloma (MM) is a rare isotype of multiple myeloma, comprising less than 2% of all cases. IgD myeloma characterized by aggressive presentation and shorter overall survival than other subtypes of MM. Acquired deficiency of coagulation factor can complicate hematological malignancies; bleeding depends on level and on the factor deficiency. Factor XI deficiency is relatively low risk spontaneous bleeding. There are few cases of IgD MM described in the literature especially complicated with factor deficiency. We report a rare case of IgD lambda multiple myeloma with acquired factor XI deficiency.

Keywords: Case report, IgD myeloma, Factor XI deficiency, Multiple myeloma
Fortalecendo a Literacia Financeira: abordagem da Educação Financeira Escolar por meio da Aprendizagem Baseada em Projetos
Authors: Carmo Jean Carlo Francis Wanderley Graciano do , Tinti Douglas da Silva
Published: August 2024

Este artigo investiga a importância da Educação Financeira Escolar (EFE) na formação de indivíduos conscientes e capazes de tomar decisões financeiras responsáveis, por meio da Aprendizagem Baseada em Projetos (ABP). Utilizando uma abordagem qualitativa, analisamos um projeto desenvolvido por alunos e professores de Matemática do Programa Residência Pedagógica, o qual aplicava conceitos matemáticos em contextos financeiros práticos. O estudo destaca como a ABP pode integrar conhecimento acadêmico a situações do cotidiano, fomentando Literacia Financeira e capacidades decisórias nos alunos. Os resultados sugerem que a EFE, apoiada por metodologias ativas, deveria ser mais incorporada ao currículo escolar, devido ao seu potencial em preparar jovens para decisões financeiras responsáveis.
PENGARUH BRAND IMAGE DAN KUALITAS PRODUK TERHADAP KEPUTUSAN PEMBELIAN KONSUMEN PADA PT PESONA ALAM SELARAS DI MEDAN
Authors: Alfandy M Rizky , Nasution M Amri , Zulkarnain Mierna
Published: August 2024

Penelitian ini bertujuan untuk mengetahui pengaruh brand image terhadap keputusan pembelian konsumen pada PT Pesona Alam Selaras Di Medan. Penelitian  ini dilakukan pada PT Pesona Alam Selaras di Medan yang beralamat di Jalan STM No.10 Ruko A Komplek SBC, Suka Maju, Kec.Medan Johor, Sumatera Utara, 20146. Populasi dalam penelitian ini adalah konsumen yang menjadi sasaran pemasaran produk PT Pesona Alam Selaras yaitu berjumlah 3.608 konsumen pada 6 bulan terakhir (januari-juni 2023). Sampel pada penelitian ini juga merupakan konsumen yang menjadi sasaran pemasaran produk PT Pesona Alam selaras yaitu  berjumlah 98 konsumen. Dimana sumber data yang diperolah melalui angket/kuesioner. Dari hasil penelitian ini dapat diambil kesimpulan pada Variabel brand image (X1)dan Kualitas produk (X2) berdasarkan analisis pada uji t secara parsial memiliki pengaruh positif dan juga signifikan terhadap Keputusan pemebelian pada PT Pesona Alam Selaras Di Medan. Hasil penelitian pada variabel brand image (X1)dan Kualitas produk (X2) berdasarkan uji  F secara Bersama-sama (simultan) terdapat pengaruh positif dan signifikan terhadap keputusan pembelian (Y) pada PT Pesona Alam Selaras Di Medan.Dari hasil penelitian berdasarkan uji koefisien determinasi sebesar 60,1% Keputusan pembelian dapat diperoleh dan dijelaskan oleh brand image dan Keputusan pembelian.Sedangkan sisanya 30,9% dapat dijelaskan oleh factor-faktor lainnya yang tidak dapat di bahas dalam penelitian ini, seperti  promosi, harga dan sebagainya
Cover Juni 2024
Authors: Juni 2024 Cover
Published: August 2024

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PERBEDAAN KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA BERDASARKAN GENDER DAN TIPE KEPRIBADIAN SENSING-INTUITION
Authors: Irfani Sayla , Baiduri  , Arif Hidayatul Khusna
Published: August 2024

This research aims to determine the significant differences in students' mathematical creative thinking abilities based on gender and sensing-intuition personality type. This research uses a comparative research method that is ex post facto. This research was conducted in class VIII of SMPN 1 Lekok in the 2023/2024 academic year. From a population of 199, a sample of 80 was selected, namely 20 male students with a sensing personality type, 20 male students with an intuition personality type, 20 female students with a sensing personality type, and 20 female students with an intuition personality type. Data collection used creative thinking ability test instruments and sensing-intuition personality type tests. Data were analyzed using independent t-test and two-way anova. Based on the results of the analysis, it can be concluded that 1) there is no significant difference in creative thinking abilities between female and male students. 2) There are differences in creative thinking abilities between students with the sensing personality type and students with the intuition personality type. 3) There is no interaction between gender and sensing-intuition personality type on students' creative thinking abilities.
BUSINESS DEVELOPMENT STRATEGY DESIGN USING TRIPLE LAYERED BUSINESS MODEL CANVAS (DESCRIPTIVE STUDY ON MDC COFFEE HOUSE)
Authors: Pane Vivi Andriani , Sirait Tongam , Ramauli Juliana
Published: August 2024

This study aims to design the right strategy for MDC Coffee House in business development using the Triple Layered Business Model Canvas (TLBMC), as well as identify and analyze the key factors that support its sustainable business strategy. This study uses a qualitative approach to explore sustainable business strategies for the company, focusing on owners, employees, suppliers, and buyers. The results show that the use of TLBMC allows the company to design a more scientific and measurable business strategy, respond to market demands that are increasingly concerned about environmental and social issues, and strengthen its position as a leader in the sustainable coffee industry in Indonesia.
Potret Kemiskinan dalam Puisi Orang-Orang Miskin Karya W.S Rendra dan Lirik Lagu Pinggiran Kota Besar Karya Iwan Fals
Authors: Nanda Nabiilah Chaermy
Published: August 2024

Poverty is a problem that has not been resolved until now. this study will discuss the portrait of proverty in a literary work, namely a poem by W.S Rendra entitled Orang-Orang Miskin and the lyrics of Iwan Fals’ song entitled Pinggiran Kota Besar. The type of research applied is descriptive qualitative research using comparative literature as a method. The approach used in this research is an objective approach. This research was conducted to see the form of proverty described in poetry Orang-Orang Miskin by W.S Rendra and song lyrics Pinggiran Kota Besar by Iwan Fals. The results found in this research are similarities and differences in showing poverty in poetry and song lyrics. The similarities found are in the form of topics discussed, namely regarding poverty and criticism of the government regarding justice while the things that distinguish the way poverty is described.
The Tax Landscape of Split Contracts in Engineering, Procurement, and Construction (EPC) Investments: An In-Depth Study
Authors: Fathoni Muchamad Irham
Published: August 2024

The study examines tax complexities in Engineering, Procurement, and Construction (EPC) contracts, focusing on Indonesia's regulations. It stresses the importance of segregating contracts to simplify taxation, with Final Income Tax applying mainly to construction services. Challenges arise from offshore and onshore components, like equipment supplies and services, leading to disputes over Permanent Establishment (PE) presence and income attribution. Case studies from Indonesia and India demonstrate different tax interpretations. Indonesia typically taxes EPC contracts as unified, while India focuses on profit attribution within its jurisdiction. The paper highlights the role of Tax Treaties, like the Indonesia-Germany protocol, in determining tax treatment based on activities within each country. It underscores the need for consistent tax treatment through contract segregation, considering jurisdictional activities and relevant Tax Treaties.
Relatório de Angioedema Hereditário Tipo III (Dependente de Estrogênio) de três casos e revisão da literatura
Authors: Lima Eduarda Roma , Nogueira Mateus Bessa , Oliveira Jaqueline Augusto de , Yamada Karla Ayumi
Published: August 2024

Introdução: O angioedema corresponde, clinicamente, ao inchaço súbito de pele e/ou mucosas com duração de cerca de dois dias e acompanhado por sensação de dor e queimação, decorrente da vasodilatação e aumento da permeabilidade vascular. O angioedema pode ser classificado como hereditário ou adquirido. Objetivo: O melhor conhecimento acerca da condição, com ênfase em suas peculiaridades, bem como seus desafios diagnósticos e abordagem terapêutica. Materiais e métodos: Uma extensa pesquisa bibliográfica foi realizada em bases de dados acadêmicas, incluindo PubMed, Scopus e Web of Science, utilizando termos de busca relacionados ao angioedema hereditário Tipo III e sua associação com estrogênio. Resultados e discussão: De acordo com estudos recente, fontes de literatura mostraram forte correlação entre o angioedema hereditário (AEH) tipo III e as alterações dos níveis de estrogênio e mutações no gene do fator XII de coagulação, acometendo mais o sexo feminino na população. Apesar de ainda não ter ficado bem esclarecido a real ligação dos estrogênios na patogenia de AEH tipo III, os estudos sugeriram que altos níveis de estrogênios estão associados a um aumento dos níveis do fator XII, que resulta em uma maior produção de bradicinina e uma redução do INHC1. Considerações finais. Esta patologia apresenta-se desafiadora mediante a um diagnóstico direcionado e tratamento adequado, uma vez que pode manifestar quadros recorrentes e debilitantes, afetando a qualidade de vida do indivíduo portador desta doença.