Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of Audio-Visual Aided Instruction on Junior Secondary School
Students’ Interest and Achievement in Fraction in Nasarawa State, Nigeria

The study examined the Effect of Audio-Visual Aided Instruction on Junior Secondary Students’ Interest and Achievement in Fraction in Nasarawa State. The study is a quasi-experimental research in which pretest-posttest was used. Purposive sampling technique was employed to select the schools that were used for this research work. It was purposive in the sense that only schools having functional ICT units that were used for the study. The population was made up of 918 JS1 (504 males and 414 females). Two intact classes drawn from two government schools were selected for this research work. One class was used as experimental group while the other as control group. A validated 40 items Fraction Achievement Test (FAT) and 20 items Fraction Interest Scale (FIS) were constructed by the researchers as instruments for the study. Data were collected and analyzed to answer the research questions using mean and standard deviation while the hypotheses were tested at 0.05 level of significance using ANCOVA. It was found that students taught fraction using audio-visual aided instruction achieved higher than their counterparts who were taught using conventional method. Students expressed higher interest in fraction when taught using audio-visual aided instruction. The study therefore recommends that mathematics teachers should be encouraged to adopt the use of audio-visual aided instruction in teaching and learning of fractions in mathematics to improve students’ interest and achievement in the subject.
Antibacterial activity of selected plant essential oils on airborne bacteria and mode of action on membrane integrity

The aim of this study was to investigate the antibacterial effect of six essential oils against airborne bacteria. Essential oils were obtained by hydrodistillation and analyzed by gas chromatography and gas chromatography-mass spectrometry. Antibacterial susceptibility was evaluated by agar disk diffusion and micro atmosphere methods. The minimum inhibitory concentration and the minimum bactericidal concentration were determined by the microdilution method in liquid medium. Measurement of the release of cellular material that absorbs at 260 nm and quantification of intracellular biomolecules in extracellular medium were carried out to investigate the antimicrobial mode of action of EOs. Overall, EOs in vapor-phase showed a better activity compared to the liquid phase. The MICs of EOs ranged from 0.04 to 3.12 mg/mL. The EOs of Eugenia caryophylla, Citrus sinensis, and Cymbopogon citratus presented a bactericidal effect on all the strains tested. Concentration of intracellular material released in extracellular medium ranged from 185.7 ± 2.75 ng/μL to 764.1 ± 3.46 ng/μL for DNA, 126.5 ± 2.33 ng/μL to 626.6 ± 17.25 ng/μL for RNA and 692.2 ± 6.22 ng/μL to 1231 ± 2.52 ng/μL for proteins. Citrus sinensis and Eugenia caryophylla EOs induced greater damage to the different bacteria produced by a greater release of biomolecules. This study demonstrates that the selected EOs have significant antimicrobial activity in both the liquid and vapor phase against the bacteria tested, acting on the cell surface and causing the disruption of the bacterial membrane. These EOs are interesting alternatives to conventional antimicrobials for the control of indoor microbial contaminants.
The Effects of Propolis Extract Administration on HIV Patients Receiving ARV

BACKGROUND: Human Immunodeficiency Virus (HIV) is an infectious disease that targets the human immune system by attacking cluster of differentiation (CD)4 cells. The use of propolis in HIV patients is expected to be safe and beneficial in terms of increasing endurance and immunity by its role in increasing CD4 level. This study aimed to analyze the influence of propolis supplementation in increasing the CD4 level in anti-retroviral (ARV)-treated HIV patients. METHODS: Double-blind randomized controlled clinical trial was conducted in 50 HIV patients who took regular ARV therapy. The subjects were divided into two groups, one group was treated with ARV and propolis, while another one was given ARV and placebo. The CD4 cell count was measured during pre-treatment, in the 3rd month, in the 6th month after treatment. The level of hemoglobin, leukocyte, and platelets were also measured. The SF-12 questionnaire was used to evaluate quality of life of the subject. RESULTS: Out of 50 subjects, 43 subjects completed the study, which were 19 subjects from the propolis group and 24 subjects from the placebo group. After 3-month of treatment, there was a statistically significant difference in the increase of CD 44 level in propolis group, while the increment was not significant in the placebo group. After 6-month treatment, the increase of CD4 level was occurred in both groups, propolis and placebo, however the increment was not statistically significant. The levels of hemoglobin, leukocyte, and platelets were not altered by the treatment and remained normal throughout the study. The quality of life was improved during the study; however, it was also not statistically significant. Mild adverse events occurred in 3 subjects which were relieved after the treatment stopped. CONCLUSION: Based on the result of this study, the administration of propolis on HIV patients receiving ARV bring significant difference in the increase of CD4 in propolis group from baseline to 3 month after the treatment. While in placebo group, this increment was not significant. At the end of study, CD4 count continued to rise up, however the increase was not statistically significant. There are no hemoglobin, leukocyte, platelets, and quality of life abnormalities. Therefore, it is necesary to do further research with a spesific CD4 count. However, it may be beneficial in relieving the clinical symptoms and quality of life of patient living with HIV. KEYWORDS: CD4, ARV, HIV, propolis
Influence of strength training on selected systems of the human body

Research aim: The objective of research was to present the influence of strength training on selected systems of human organs on the basis of available literature on the subject. Methodology: A review was conducted of international literature based on analysis of selected articles available at Google Scholar, PubMed, SciCentral. Results: Changes in the human body as a result of both strength exercises and training were demonstrated based on analysis of the available literature. Summary: The results and the rate of benefiting from the practive of strength disciplines largely depend on gender, genetic characteristics, age, training history, health status, diet, lifestyle, current physical activity and stress levels.
Deregulation, Market Power, and Prices: Evidence from the Electricity Sector

When deciding whether to introduce market-based prices into a regulated market, a regulator faces the following tradeoff: profit incentives may reduce costs through the more efficient allocation of resources, but the presence of market power may lead to increased markups. We use a detailed dataset on electricity transactions to investigate the impact of market-based deregulation in the context of the U.S. electricity sector. We find that the increase in markups dominates despite modest efficiency gains, leading to higher prices to consumers. Deregulation does not necessarily lead to lower prices to consumers. A consumer-oriented regulator may prefer to regulate rates to be consumer friendly, rather than let prices be subject to market power.
4 Concentration and Size Distribution of Bacterial and Fungal Bioaerosols and the Related Exposure

IN this study, concentration and size distribution of bioaerosols (bacteria and fungi) were obtained in indoor at minimum ventilation and during the operation of air condition system (ACS). Indoo/Outdoor concentration ratio (I/O) of bacteria and fungi were also determined. In addition, the indoor exposure dose (IED) of bacteria and fungi were calculated. A six-stage Andersen cascade impactor was used for sampling the microorganisms during summer season at Minia University, El-Minia (Egypt). Mean bacterial and fungal concentrations were higher (727±160 and 252±60 CFU/m3, respectively ) at minimum ventilation than the concentrations during ACS (506±120 and 176±44 CFU/m3, respectively ). Indoor bacterial concentration level is three times higher than the fungal level. On the other hand, outdoor bacterial concentration (220±55 CFU/m3) is lower than the outdoor fungal level (300±77 CFU/m3). I/O concentration ratio of bacteria was greater than unity indicating that the main source of bacteria is the human occupancy while the corresponding I/O concentration ratio of fungi was less than unity indicating that the fungi are released from outdoor sources. Mean IED of bacteria (37.4 CFU/ kg) was about three times higher than the IED of fungi (12.5 CFU/kg) .
Design and Analysis of a Cost-Effective Magnetless Multi-Phase Flux-Reversal DC-Field Machine for Wind Power Generation

Abstract--This paper proposes a new four-phase flux-reversal DC-field (FRDC) machine for the wind power generation applications. The key distinction of the proposed generator is to artfully design its stator pole and winding arrangement, in a way imitating the permanent-magnet (PM) configurations on the profound FRPM machine has. Hence, the proposed FRDC generator can provide the bipolar flux-linkage patterns and achieve performances similarly as the high-quality FRPM generators do. The proposed generator can regulate its controllable DC-field winding to vary its flux density effectively. Thus, it can achieve the constant-output-voltage characteristics at different situations, in order to extend the battery life and to protect the power grid system. Without installation of any highcost PM materials, the proposed magnetless FRDC generator can achieve better cost-effectiveness than its PM counterparts do. The key performances of the proposed wind power generator are thoughtfully analyzed by the finite element method (FEM) while the experimental prototype is also setup for verifications.
Managers’ Perception of Corruption in Croatia, Serbia and Slovenia

The paper provides a comparative analysis of managersꞌ perception of corruption in three post-transition economies based on The World Bank Enterprise Survey data in the period 2002-2019. Results suggest that although the main forms of corruption seem to differ among the countries, there does not seem to be any systemic change within individual countries. While in Slovenia managers are most likely to notice grand corruption, petty corruption seems to be more widespread in Croatia and Serbia. Those who perceive corruption to be higher on the power ladder are also the ones more likely to consider it an obstacle for their business endeavours. The difference is the most significant in Croatia, suggesting that additional efforts to reduce corruption would be most readily welcomed by the business sector in that country. Limitations of the present study rely on the quality of the data source used. While there is no doubt that the survey has been carried out with the highest quality standards, the potential strategic answering of respondents can hardly be avoided when it comes to such an illusive phenomena as corruption. A possible remedy could be to supplement the results with a similar survey that would focus on questions specific to corruption practices of the analysed countries.
Ogbuewu-Mbajiorgu: Blood cholesterol characteristics of broiler chicken on turmeric-based diets

The purpose of this experiment was to use a meta-analysis approach to resolve conflict, identify knowledge gap and develop new insights on the effect of turmeric on plasma total cholesterol (TC), high-density lipoprotein cholesterol (HDL-c) and low-density lipoprotein cholesterol (LDL-c) concentrations in broiler chickens. The authors found 64 studies following a systematic search conducted in 3 electronic databases and the World Wide Web using several search queries. Eighteen out of the 64 publications met the predefined eligibility criteria to assess the impact of turmeric on plasma TC, HDL-c and LDL-c concentrations in broiler chickens. Data collected were analysed in OpenMEE software and pooled estimation revealed that turmeric-based diets significantly reduced the concentrations of TC and LDL-c (p<0.01), and improved the concentrations of HDL-c (p<0.01) in chicken blood when compared to those on the control diets. Sub-analysis found significant associations between covariates (chicken strain, supplementation level, number of birds per treatment and duration of supplementation) and measured outcomes (TC, HDL-c and LDL-c). Significant heterogeneity (I) existed in the meta-analysis, and meta-regression analysis found that chicken strain and duration of supplementation were predictors of HDL-c and LDL-c, and explained 72% of the sources of heterogeneity among the studies used in the meta-analysis. The results of the present meta-analysis showed the potential of turmeric-based diets to modulate the production of blood cholesterol in broiler chickens.
Frequency of Anatomical Indicators Related to the Mental Foramen and Mandibular Canal of Edentulous Patients on Digital Panoramic Radiographs

Background:Determining the location of mandibular canal and mental foramen in the implant treatment is important to prevent any damage to the mental foramen and mandibular canal. The interpretation of a radiographic image depends on the individual interpretation of the observer. The aim of this study was to assess the agreement between two radiologists on the identification of mental foramen and mandibular canal. Methods: In this study, 95 digital panoramic images ofedentulous patients were evaluated by two radiologists to determine the type of mental foramen according to the Yosue and Brooks classification as well as the type of mandibular canal according to the classification of Angelopoulos. Data were analyzed using SPSS version 17. Results: The most common appearance of mental foramen was continuous type. The intra-examiner agreement on the type of mental foramen on the right and left sides was as much as 0.60 and 0.72, respectively. The highest frequency was observed in the anterior and middle one-third of the superior border of the mandibular canal related to type zero and posterior one-third related to type three. Type three in the inferior border of mandibular canal was the most frequent type in all one thirds. There was also a significant difference in the anterior, middle, and posterior one-third of the superior and inferior borders of mandibular canal observations. Conclusion: The most common appearance of mental foramen on panoramic images was continuous type. The posterior one-third of mandibular canal was more clearly in panoramic images.
Market Orientation and Business Performance: Study in Petrol Station in Timor-Leste

The objective of this research is to assess the impact of market orientation on business performance in the petrol stations in Timor-Leste. In our study, we used questionnaire from previous authors to collect data. Hypothesis was tested using Smart-PLS 3.0. The result shows that market orientation reflected by consumer orientation, competitor orientation, and inter-functional coordination had a positive and significant impact on business performance. This study contributes to the literature on market orientation and business performance which still face inconsistent results from previous researches. This study is also expected to be considered by the government in developing policies related to small and medium enterprise (SMEs) management. In the middle of this, market orientation could be one determinant factor to be considered as strategic fitness to improve SME’s financial and nonfinancial performances in Timor-Leste. In addition, SME’s managers could look at market orientation as a business strategy to improve their business performance.
Evaluation of a strategy-oriented method to identify and prioritise knowledge management initiatives in SMEs

Purpose: This article presents the process followed for the definition, application and evaluation of a strategy-oriented method for identifying and prioritising knowledge management (KM) initiatives in smallto medium-sized enterprises (SMEs). Design/methodology/approach: To develop the method, the research team conducted a literature review of the existing business strategies and processes and models of maturity in KM. Based on this, the first version of the method is proposed. Subsequently, the method was explored through a focus group composed of regional development centres, business innovation centres and industry representatives. Then, the four-step method, called KM-EZAGUTUZ, for the identification and prioritisation of KM initiatives in SMEs was proposed. Afterwards, a field test was performed in five companies. Findings: The conclusions obtained through the research show the validity of the method, which helps SMEs identify and prioritise KM initiatives. Research limitations/implications: More field tests should be done to confirm the validity of the method and improve it. Furthermore, the research concludes that strategy-focused KM is a good approach for SMEs, allowing them to approach KM from a consistent and pragmatic perspective. The research also provides insights into the main difficulties faced by SMEs in implementing KM. Practical implications: The method, which is developed and supported in a prototype tool, helps companies quickly determine and prioritise the actions for better KM in accordance with company strategies. In addition, the method supports a common understanding of the strategic vision of the organisation among the participants taking part in the process. Social implications: Management practices are usually designed for mediumand large-sized companies. The significant resources required make it difficult for SMEs to benefit from the implementation of such practices. Given that SMEs account for a large share of employment in countries and that they need to manage knowledge effectively, this research helps address this important socio-economic need. Originality/value: The method described in the article combines strategy, knowledge management and a user-friendly identification and prioritisation tool adapted to SMEs.
DIAGNOSTIC ROLE OF P63 IMMUNOSTAINING IN FINE-NEEDLE ASPIRATION CYTOLOGY SMEARS OF BREAST LUMPS

Background: Fine-needle aspiration cytology is a simple, non-invasive, reliable and economical procedure for the exact evaluation of lump breast. P63 is a nuclear marker which can be used on FNAC smears for staining of myoepithelial cells that appear as naked nuclei on cytological examination. Aims and Objectives: To evaluate the expression of p63 in FNAC smears of breast lumps and to determine the predictive value of the p63 expression on FNAC smears for benign and malignant breast tumors. Material and Methods: This study was conducted in Lahore General Hospital on 50 female patients with a breast lump. Smears were prepared and stained with H&E and p63 immunomarker. Association between histological diagnosis and p63 expression on FNAC was evaluated. Results: In this study of 50 cases of lump breast, 36% (18) cases showed <25% p63 + staining in their cells, 20% (10) cases showed 25-50% P63 + staining and 44% (22) cases showed >50% P63+ staining concluding 36% (18) cases were malignant (IDC) on P63 staining. Conclusion: It was concluded that the expression of p63 may be helpful in making a conclusive diagnosis on FNAC smear.
Is the human race winning the war against Helicobacter Infections?

The incidence of helicobacter infections in human population appears not to have significantly wane over the years. Even though there are reports indicating that the prevalence rate is reducing in the developed world, constant migration, general globalization and other environmental factors has kept every population a risk. Moreover, the rising incidence of infection with non-pylori helicobacter species, which were considered hitherto non-virulent, puts a question in the seemingly progress made so far in the treatment and eradication of these bacteria and their infections. The purpose of this mini review is to access the clinical and epidemiological gains and the challenges so far in the treatment and eradication of helicobacter spp. infections.
DETERMINANTS AND HEALTH RELATED OUTCOMES OF UNINTENDED PREGNANCY IN ZAGAZIG CITY AND NURSING IMPLICATION

Unintended pregnancy is usually referred to both unwanted and mistimed pregnancy. It is estimated that each year almost 80 million women experience unintended pregnancy worldwide, jeopardizing the health and well-being of women and their families. The aim was to assess the determinants and health related outcomes of unintended pregnancies. Subjects and method; Across section and quasi experimental designs were used in this study. The study was conducted at the Maternal and Child Health clinics in Zagazig city. The first sample consisted of 800 females selected by simple random sampling. The second sample; consisted of 60 women for whom the intervention program was implied,. Tools include the interviewing schedule and the educational program for the intervention. Results revealed that almost one third of women (32.0%) were exposed to unintended pregnancy, they had a mean of age, and higher percentage of gravida and para ( 4). They were significantly more likely to have low education, insufficient income, antenatal care utilization (28.5%) compared to those who had intended pregnancy (69.3%). Meanwhile, they were more apt to have pregnancy, labor and neonatal complications. A statistically significant improvement was observed in the post-intervention knowledge of women, in all tested elements about the unintended pregnancy, OCPs and IUD and ECPs. Conclusion; almost one third of women were exposed to unintended pregnancy. Age, educational status of women, economy of the household, children ever born, contraceptive use were significantly associated with unintended pregnancy. Trial of abortion and adverse maternal and newborn outcomes were associated with unintended pregnancy. Recommendation; the educational program should be integrated in the family planning clinic in the study setting and in similar ones.
CEO Turnover and Internal Control Material Weaknesses

The practical aim of the paper is to examine whether CEO turnover occurs under account-level and company-level internal control material weaknesses (ICMWs) in Tehran Stock Exchange (TSE) or not. The authors utilized data from 99 Iranian firms' financial statements as the sample over 5 years (2013-2018). A total of 594 observations were analyzed using a logit regression model. Empirical findings revealed there is no significant relationship between account-level and company-level ICMWs with CEO turnover. Therefore, establishing appropriate internal control is not merely dependent on the CEOs but may require committed staff withholding strong moral values. This paper develops the literature and generates empirical evidence of the relation between CEO turnover and ICMWs in Iran's specific context as a developing country.