Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of stock market performance on industrial productivity of Nigeria: An empirical analysis

This study investigated the effect of stock market performance on industrial productivity in Nigeria from 1985 to 2016. In particular, the study examined Nigerian stock market performance indices such as market capitalization, all share index, value of shares traded and number of deals to ascertain how they affect industrial sector contribution to Gross domestic product. The study used unit root test, Johansen co-integration test and vector error correction mechanism to carry out its tests and analysis. The unit root test results revealed that the variables used in the study were integrated at their first differences, while the Johansen co-integration test results suggested a long run relationship between industrial sector productivity and stock market performance indicators. It was also discovered that market capitalization though negative led industrial productivity in Nigeria. Hence, the study recommends policies aimed at accelerating the stock market development and efficiency in order to engender industrial productivity of Nigeria in the years to come.
Meta-Analysis of Emerging Markets and Economies: An Introductory Note for the Special Issue

ABSTRACT This paper introduces the special issue titled “Meta-Analysis of Emerging Markets and Economies” of the Emerging Markets Finance & Trade journal. In addition, it briefly describes the procedure and methodology of meta-analysis and persons who intensively perform meta-analytic research in economics. Commentary on special issue articles from the authors is also provided.
Comparative Analysis of Information Literacy Competence among Students of Information Resources Management, Babcock University, Nigeria.

This study was carried out to ascertain the information literacy competence of Information Resources Management students at Babcock University. The descriptive survey design was used for the study. The population consisted of 261 graduate and undergraduate students. Sampling was enumerative as all members of the population were chosen to participate in the study. Data was collected using a self- constructed questionnaire. Frequency and percentage counts were used for data analysis. The findings of the study revealed a high level of information literacy competence. Graduate students were, however, found to have a higher degree of information literacy competence compared to undergraduate students. The greatest challenge to attaining information literacy competence was identified as the inability of the university library to support learning through formal and informal user education programmes. Based on the findings, the study concluded that information literacy competence is indeed necessary for academic success as it serves as the road map for navigating the world of information. The study, therefore, recommends that information literacy is built into the curriculum irrespective of the programme of study. University libraries, on the other hand, should provide information materials for individual reading and employ a variety of methods to teach information literacy at all levels of study.
Oxygen Abundances in Metal-poor Stars

We present oxygen abundances derived from both the permitted and forbidden oxygen lines for 55 subgiants and giants with [Fe/H] values between -2.7 and solar with the goal of understanding the discrepancy in the derived abundances. A first attempt, using Teff values from photometric calibrations and surface gravities from luminosities obtained agreement between the indicators for turn-off stars, but the disagreement was large for evolved stars. We find that the difference in the oxygen abundances derived from the permitted and forbidden lines is most strongly affected by Teff, and we derive a new Teff scale based on forcing the two sets of lines to give the same oxygen abundances. These new parameters, however, do not agree with other observables, such as theoretical isochrones or Balmer-line profile based Teff determinations. Our analysis finds that one-dimensional, LTE analyses (with published non-LTE corrections for the permitted lines) cannot fully resolve the disagreement in the two indicators without adopting a temperature scale that is incompatible with other temperature indicators. We also find no evidence of circumstellar emission in the forbidden lines, removing such emission as a possible cause for the discrepancy.
The Relationship between Consistency and Consensuality in Syllogistic Reasoning

In this study, we examined the effects of response consensuality in syllogistic reasoning on patterns of answer change by using the two-response paradigm. Participants evaluated 24 syllogistic problems previously found to differ in consensuality, including consensually correct (CC), consensually wrong (CW), and nonconsensual (NC) items. Each problem was presented two times and participants were required to provide an initial quick answer to the first presentation, to rethink the problem, and to provide their second and final response without time limits to the second presentation. Participants reported the feeling-of-rightness (FOR) following the initial response, and the final judgment of confidence (FJC) after the final response. Following the assumptions of Koriat's (2012) Self-Consistency Model of confidence, we expected higher probability of answer change for initial nonconsensual responses than for initial consensual responses. The results showed that patterns of answer change, as well as metacognitive judgments and response times, were related to item consensus and response consensuality. Nonconsensual responses were more likely to be changed than consensual responses, and the probability of answer change correlated negatively with item consensus. Faster response times and higher FORs and FJCs were obtained for consensual and consistent responses than for nonconsensual and inconsistent responses. The obtained results indicate that answer change may in part be a consequence of random fluctuations in representation sampling, or in generating evidence that supports each of the two response options.
Common Complications of Ilizarov External Fixator

Objectives: To evaluate the complications of Ilizarov external fixator. Methods: This descriptive study was conducted between January 2012 and December 2016. Data includes demographics, functional outcome and complications of surgery were documented on a pre-formed proforma. Ninety patients requiring Ilizarov fixator fixation for various indications were studied. A; the record was kept in database. Results: 90 patients were treated with Ilizarov for different indications. Male population was dominant, 65(72.2%)) while only 25(27.8%) were females. The fixator was applied for an average of 17.9 ±10.3 SD weeks with a range of 7-48 weeks. Outcome graded as per ASAMI criteria as excellent in 60 (66.6%), good in 21 (23.33%), fair in 6 (6.66%) and poor in 3 (3.33%) patients. The main complications in 29 (32.2%) cases were infection, of which 4 (4.44%) were major infections and 25 (27.7%) were minor pin tract infections. Joint stiffness was found in 12 (13.3%) patients and limb shortening in 5 (5.5%) patients of more than 2.5 cm. Conclusion: Observing Ilizarov principles can reduce complications. Cleaning of pin tracts should be done to minimize infection and vigorous range of motion exercises and weight bearing to reduce joint stiffness. Respecting planes would reduce neurovascular injuries. Despite its complications, this is still a valuable tool for treating complex skeletal disorders which otherwise would require amputations.
Event-Based Adaptive Power Control in Vehicular Networked Systems With State-Dependent Bursty Fading Channels

This brief considers both safety and efficiency issues for vehicular networked systems (VNSs) where vehicles exchange information over vehicle to vehicle (V2V) wireless communication channels. One of the challenges to ensure system safety and efficiency lies in unreliable V2V fading channel conditions, which stochastically change as a function of the vehicle states and are subject to severe data rate drops. By adopting a bursty state-dependent fading model, this brief presents a novel event-based adaptive power control scheme. Under this scheme, the VNS assures efficient use of communication resources while preserving almost sure asymptotic stability. The benefits of the proposed scheme over other power policies are shown in a leader–follower formation control example.
Nontuberculous Mycobacteria, Botswana, 2011–2014

We documented a 6-fold increase in the frequency of nontuberculous mycobacteria isolated from clinical samples in Botswana during 2011–2014. Because antituberculosis treatment is often initiated only on the basis of acid-fast bacilli smear-positive microscopy results, some patients with nontuberculous mycobacterial infections might have received inappropriate treatment.
Distressed banks, distorted decisions?

Exploiting differences in pre-crisis business banking relationships, we present evidence to suggest that restricted credit availability following the 2008 financial crisis increased the rate of business failure in the United Kingdom. But rather than "cleansing the economy by accelerating the exit of the least productive businesses, we find that tighter credit conditions resulted in some businesses failing despite being more productive than their surviving competitors. We also find evidence that distressed banks protected highly leveraged, low productivity businesses from failure.
Household earthquake preparedness in Serbia: A study of selected municipalities

This article presents the results of a qualitative study of household earthquake and community-level preparedness in Serbia and its relationship to various demographic factors. A series of 1,018 face-to-face interviews were conducted at the beginning of 2017 in eight Serbian municipalities. The results show that the population is generally unprepared, with low percentages of reported enhanced preparedness levels. In addition to presenting its findings, the study also considers future research directions, including using this study as a basis for more detailed research and to assist in facilitating community-led programs and strategies to increase earthquake safety.
Fatigue life estimation of metal structures based on damage modeling

• A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers.
Bioethanol production from rice and corn husks after enzymatic and microbes hydrolysis and yeast fermentation

Purwoko Tj, Sari SLA, Mahadjoeno E, Sunarto. 2017. Bioethanol production from rice and corn husks after enzymatic and microbes hydrolysis and yeast fermentation. Bioteknologi 14: 19-23. Bioethanol is a renewable resource that can be produced from fermented cellulosic biomass. The use of lignocellulosic materials from agricultural wastes provides a low-cost fermentative substrate. Lignocellulosic ethanol production involves acid or enzymatic hydrolysis. The enzymatic hydrolysis is high cost however in environmental issue this step is favorable. The purpose of this research was to compare bioethanol production after microbes and cellulosic enzymes hydrolysis following yeast Saccharomyces cerevisiae fermentation from rice and corn husks.The rice and corn husks (1 kg) were each suspended into water until the volumes reached 5 L. The sample mixtures were treated with 2.5 mg/L cellulases, 5 g/L multienzymes, and 5 mL/L EM4 respectively. The mixtures were stirred for 24 hours at pH 5.7 and 35Â°C. After hydrolysis, the samples (100 mL) were treated by 1, 2, and 3 % w/v Bakerâ€™s yeasts. The samples were fermented at incubator shaking for 6 days at 30Â°C, 90 rpm, and pH 6.5. Sugar concentrations were determined by dinitrosalicylic acid (DNS) colorimetric method. Bioethanol productions and specific gravity method and then compared to IAOC Ethanol Table. Sugar concentrations and bioethanol production after multienzymes hydrolysis of rice and corn husks were 6.54-6.81 mg/mL and 3.17-3.54 mg/mL, respectively. Sugar concentrations of rice and corn husks after multienzymes hydrolysis treatment was higher than EM4 and cellulases hydrolysis treatments. Therefore bioethanol productions of rice and corn husks after multienzymes hydrolysis and yeasts after 2 days fermentation were higher than the others.
MENUMBUHKAN KARAKTER RASA INGIN TAHU (CURIOSITY) SISWA MELALUI MEDIA PUZZLE DALAM PEMBELAJARAN SEJARAH DI KELASXI MIA 3 SMA NEGERI 1 LEMBANG

Penelitian ini mengambil judul “ Menumbuhkan Karakter Rasa Ingin Tahu Siswa Melalui Media Puzzle dalam Pembelajaran Sejarah di Kelas XI MIA 3 SMA Negeri 1 Lembang”. Penelitian ini memfokuskan pada upaya menumbuhkan karakter rasa ingin tahu siswa dalam pembelajaran sejarah. Indikator dari karakter rasa ingin tahu yang dikembangkan pada penelitian kali ini diantaranya adalah kemampuan bertanya, kemampuan dalam menjawab pertanyaan dari teman atau guru, kemampuan mencari tahu sebuah informasi dari buku dan internet, memiliki kontribusi dalam kegiatan diskusi kelompok maupun diskusi kelas, kemampuan menginterpretasi gambar dalam puzzle, dan kemampuan memberikan solusi terhadap pertanyaan-pertanyaan di LKS. Metode penelitian yang digunakan dalam penelitian ini adalah penelitian tindakan kelas (PTK) dan desain penelitian dari Kemmis dan Mc Taggart. Desain penelitian model Kemmis dan Mc Taggart terdiri dari beberapa tahapan diantaranya perencanaan (plan), pelaksanaan (act), observasi (observe) dan refleksi (reflect). Berdasarkan hasil penelitian yang telah dilakukan, karakter rasa ingin tahu siswa dalam pembelajaran sejarah mengalami peningkatan. Hal tersebut terlihat dari kenaikan persentase karakter rasa ingin tahu siswa melalui media puzzle yang menunjukkan adanya perubahan karakter rasa ingin tahu siswa yang semula kurang baik menjadi berada pada kategori baik. Hasil penelitian ini dapat menjadi rekomendasi bagi guru atau pihak sekolah untuk mengembangkan pembelajaran dalam menumbuhkan karakter rasa ingin tahu siswa, agar pembelajaran yang dilalui siswa menjadi lebih bermakna. ;---The title of this article is “Growing up Students Curiosity Character in Learning History Through Puzzle Media In Class XI MIA 3 SMA Negeri 1 Lembang". This research focuses on the effort to improve the students' curiosity in learning history. The developed indicators of the curiosity character in this research these are the ability to ask questions, ability to answer questions from friends or teachers, ability to find out the information from books and the internet, then to contribute in group activities and class discussions, ability to interpret images in puzzles, and the ability to provide solutions of each questions in student work sheet (LKS). The research method used in this research is a Classroom Action Research (PTK) by Kemmis and Mc Taggart. It consists of several stages, including the planning, implementation, observation and reflection. Based on the results of research, the character of the students’ curiosity in learning history has increased. It could be seen from the percentage that indicates students’ significant change. The percentage showed the change of students’ curiosity character which was not good enough to the good category. It can be a good recommendation for teachers or school to develop learning in order to grow students’ curiosity character, so that the learning would be more meaningful.
Cytotoxic profile activities of ethanolic and methanolic extracts of chicory plant (Cichorium intybus L.)

ABSTRACT This study aims to highlight the antioxidant and cytotoxic effects of Cichorium intybus L. The cytotoxic activity for cancer cell lines was evaluated by MTT assay. Total phenol and flavonoid content were examined using chemical analysis methodology. The highest content of phenols and flavonoids have occurred in the methanolic extract (1162.29 ± 103.4 µg.g−1 GAE D.W, 167.47 ± 5.83 µg QE.g−1 D.W), respectively, followed by ethanolic extract (153.83 ± 10.25 µg GAE.g`1 D.W, 36.56 ± 5.95 µgQE.g−1 D.W), respectively. The cytotoxic effect of methanolic extract on MCF-7 cell line was achieved at 500 µg. mL−1. The results showed that methanolic extract possessed potent cytotoxic activity while ethanol extract possessed antioxidant activity. In conclusion, natural plant extract might be prevent and working as a defense by enhancing the immune system against cancer.
Grading Teachers: Race and Gender Differences in Low Evaluation Ratings and Teacher Employment Outcomes

In July 2011, the State of Michigan adopted a broad set of teacher labor market reforms, including a high-stakes evaluation system designed in part to remove low-performing teachers. We examine the characteristics of teachers rated as “minimally effective” and “ineffective,” as well as their schools, and the relationship between low effectiveness ratings and later employment outcomes. Results suggest teachers of color across traditional and charter schools are more likely to receive low effectiveness ratings than their within-school peers. These low rating risks are higher for teachers of color working in comparatively White-faculty contexts. Male and novice teachers are also rated low more frequently, and important differences appear to exist in the usage of low ratings by traditional public and charter schools.
Locus of Control, Emotion Venting Strategy and Internet Addiction

Internet addiction has become a critical problem on adolescents in Taiwan, and its negative effects on various dimensions of adolescent development caught the attention of educational and psychological experts. This study examined the correlation between cognitive (locus of control) and emotion (emotion venting strategies) factors on internet addiction of adolescents in Taiwan. Using the Compulsive Internet Use (CIU) and the Emotion Venting Strategy scales, a survey was conducted and 215 effective samples (students ranging from12 to14 years old) returned. Quantitative analysis methods such as descriptive statistics, t-test, ANOVA, Pearson correlations and multiple regression were adopted. The results were as follows: 1. Severity of Internet addiction has significant gender differences; boys were at a higher risk than girls in becoming addicted to the Internet. 2. Emotion venting, locus of control and internet addiction have been shown to be positive correlated with one another. 3. Setting the locus of control as the control variable, emotion venting strategy has positive and significant contribution to internet addiction. The results of this study suggest that coaching deconstructive emotion strategies and cognitive believes are encouraged to integrate with actual field work. Keywords—Emotion venting strategy, locus of control, adolescent internet addiction.
Monotonic and Fracture Behaviours of Bolted Connections with Distinct Bolt Preloads and Surface Treatments

This paper presents a research about the monotonic and failure behaviours of bolted joints made of thin plates of S350GD and S355MC steels grades, which are used for rack structures. A full factorial test matrix was performed considering two joints configurations (1+1 and 4+4 double shear bolted joints), two material thicknesses (2 and 3mm), three coatings (“black steel”, zinc coating, zinc plus paint) and two preload levels (25%×70%Fu and 70%Fu). Tests were performed under static monotonic loading until failure. Slip tests were also performed according to the EN 1090-2 standard to evaluate joint slip factors for the three material surface conditions. In addition to the experimental tests, numerical simulation of static tests were performed using elastoplastic material behaviour, based on Mises yield theory and isotropic hardening identified with experimental tensile testing data. The models were able to reproduce conveniently the ultimate loads of the joints and failure modes, including clamping and friction effects.
Operationalizing Learning from Rare Events: Framework for Middle Humanitarian Operations Managers

The purpose of this paper is to investigate the learning from rare events and the knowledge management process involved, which presents a significant challenge to many organizations. This is primarily attributed to the inability to interpret these events in a systematic and “rich” manner, which this paper seeks to address. We start by summarizing the relevant literature on humanitarian operations management (HOM), outlining the evolution of the socio‐technical disaster lifecycle and its relationship with humanitarian operations, using a supply chain resilience theoretical lens. We then outline theories of organizational learning (and unlearning) from disasters and the impact on humanitarian operations. Subsequently, we theorize the role of middle managers in humanitarian operations, which is the main focus of our paper. The main methodology incorporates a hybrid of two techniques for root cause analysis, applied to two related case studies. The cases were specifically selected as, despite occurring twenty years apart, there are many similarities in the chain of causation and supporting factors, potentially suggesting that adequate learning from experience and failures is not occurring. This provides a novel learning experience within the HOM paradigm. Hence, the proposed approach is based on a multilevel structure that facilitates the operationalization of learning from rare events in humanitarian operations. The results show that we are able to provide an environment for multiple interpretations and effective learning, with emphasis on middle managers within a humanitarian operations and crisis/disaster management context.
Are Oil Shocks Permanent or Temporary? Panel Data Evidence from Crude Oil Production in 15 Countries

In this paper we explore the unit root properties of crude oil production for 15 sampled countries employing the Lagrange Multiplier (LM) panel unit root test with (and without) one structural break for the period 1990-2017. In case of applying LM univariate test without a structural break, the results are ambiguous and inconclusive with moderate support for stationarity. The results of LM panel unit root test with a structural break are significant and conclusive, stating that for a sampled panel, crude oil production is stationary.
Machine Learning in Energy Economics and Finance: A Review

Abstract Machine learning (ML) is generating new opportunities for innovative research in energy economics and finance. We critically review the burgeoning literature dedicated to Energy Economics/Finance applications of ML. Our review identifies applications in areas such as predicting energy prices (e.g. crude oil, natural gas, and power), demand forecasting, risk management, trading strategies, data processing, and analyzing macro/energy trends. We critically review the content (methods and findings) of more than 130 articles published between 2005 and 2018. Our analysis suggests that Support Vector Machine (SVM), Artificial Neural Network (ANN), and Genetic Algorithms (GAs) are among the most popular techniques used in energy economics papers. We discuss the achievements and limitations of existing literature. The survey concludes by identifying current gaps and offering some suggestions for future research.