Miracle-dz/UniFAR-FTUs huggingface dataset:
Characterization, Grading and Flexural Modelling of Rubberwood (Hevea brasiliensis); for the Local and International Construction Industry

Rubberwood, hitherto solely employed as fuel wood has found fairly suitable use in the Nigerian construction industry. This paper investigated the engineering properties of this low cost, alternative, timber material, produced from Rubber trees (Hevea brasiliensis); often employed within two weeks of felling, for the construction of formworks and related wood works. No real attempt has been made to formally grade or coordinate the properties of rubber wood as employed in the Nigerian construction industry. The research was aimed to achieve the determination of the physical and mechanical properties of naturally seasoned rubber wood obtained from the Niger Delta region of Nigeria, and assigned to it a strength/grade class. Specific properties required for grading were determined using suitable standard methods. The structural and mechanical properties of the timber wood were determined using the three point bending test in accordance with standards presented by BS EN 408 and ASTM D193, but with an aspect ratio of 12. Characteristic values for the wood properties (at the tested moisture content “MC”) were determined in accordance with BS EN 384. Adjustments were made to the characteristic values for the mechanical properties, and the density of the timber species at the test MC; to conform with the international reference MC condition of 12% (as specified by BS EN 338), and also 18% MC, to suit standards required for the Nigerian environmental condition (NCP 2). Grading was carried out in accordance with BS EN 338. The characteristic values for the mechanical properties (at 12% and 18% MC) evaluated from test results are as follows; characteristic values for MOR and MOE were 20.191 N/mm2 and 19.283 N/mm2, and 2285.784 N/mm2 and 2195.606 N/mm2 respectively. Mean values for densities (at 12% and 18% MC) were 406.169 Kg/m3 and 431.058 Kg/m3, while the characteristic values for the related densities were 338.474 Kg/m3 and 359.215 Kg/m3. Furthermore, the mean green density and characteristic green density for the rubberwood were 988.148 Kg/m3 and 900.352 Kg/m3 respectively. From the results obtained, rubberwood procured from the Niger Delta region was categorized as a grade D30 and D35 timber material at 18% MC and 12% MC respectively. Rubberwood from the Niger Delta can be conveniently employed as an alternative material to conventional timber, in both the furniture and the construction industry, but with special considerations.
Derivation of Diagnostic Criteria for a Slight Cognitive Impairment using CKPT (Japanese Version of CWPT)

Objective: CWPT, which is able to detect a slight cognitive impair- ment in PCSD (Preclinical Stage of Dementia) or MCI (Mild Cognitive Impairment), is attracting attention as a neuropsychological test that allows screening at the stage where we must rely on expensive testing equipment such as PET, MRI and X-CT. CWPT is a test for identifying colors and remembering episodes while reading a story containing Color Words, so it can be easily translated and used in various languages. Therefore, the purpose of this paper is to show foreign researchers how to deriver the diagnostic criteria in Japan. Methods: Diagnostic criteria were derived by analyzing large-scale data. At this time, since it is impossible to perform MMSE on all the subjects, CKPT was performed after receiving a report that I was normal. As shown in the evidence in the previous paper, the CKPT results show a normal distribution for each age, so a method to check the distribution by subjecting the subjects who disturb the normal distribution of the resulting histogram to trial and error is achieved. Results: The total number of subjects used for the diagnostic criteria was 1325, and 199 subjects were excluded. The average value ± SD, and the average value ± 1.5SD were derived as the diagnostic criteria for male and female in their 60s, 70s, and 80s. Conclusion: Using the derived diagnostic criteria, we have gained a foothold to develop various CKPT applications.
Systematic Review of the Indirect Relationships of Thwarted Belongingness and Perceived Burdensomeness in Suicide

Joiner’s Interpersonal-Psychological Theory of Suicide (IPTS) considers the interpersonal variables of low social belonging and the perception of being a burden on others as drivers of suicidal ideation. This study has sought to review the empirical evidence on this prediction. In all, 40 studies were found. The findings report a major mediator and moderator role of perceived burdensomeness (PB) and thwarted belongingness (TB) in the relationship between the propensity toward suicide and psychological, social, and environmental factors. As the theory predicts, expecting to find that the interaction of both of these variables would be more closely linked to suicidal ideation, this does not appear to have been fully supported, generally finding a greater significance when they were integrated into separate models. It seems that attributing other forms of relationship with suicide for the variables identified by Joiner would provide IPTS with greater empirical support. La revisión sistemática de la relación indirecta entre la pertenencia social frustrada y la sensación de ser una carga en el suicidio
Perceptions of Mentors and Mentees in School-based Cross-Age Peer Mentoring in a Low-income Rural Community

Cross-age peer mentoring programs are not always effective, and some researchers have questioned the effectiveness of this model. In this article, we use evaluation data to describe a project that has been going for twenty years. The project enrolls high school students as mentors to struggling elementary school students. The article reviews the current literature and details the perceptions of mentors and mentees regarding relational and academic benefits and disappointments. Both mentors and mentees report that the project gave them purpose, motivation, and a sense of belonging in the school and community. They also describe frustrations and regrets. Some findings echo previous studies; however, by presenting a twenty-year retrospective, and including mentor and mentee voices, the article provides a unique contribution to the field. The article provides an appendix with resources and recommendations for effective practices to those seeking to implement such a program.
Pt Nanoclusters Anchored on Hollow Ag-Au Nanostructures for Electrochemical Oxidation of Methanol

The synthetic method of Pt nanocluster-anchored hollow Ag-Au nanostructures and measurements of their electrocatalytic properties for methanol oxidation reaction (MOR) are reported here. In this synthesis, uniform Ag nanospheres were prepared by reduction of silver nitrate (AgNO3) with sodium borohydride (NaBH4) and then hollow Ag-Au nanostructures were synthesized via galvanic replacement of the as-prepared Ag nanospheres with Au3+. Finally, the reduction of potassium tetrachloroplatinate (II) (K2PtCl4) with ascorbic acid was performed to deposit Pt nanoclusters on the surface of hollow Ag-Au nanostructures. The hollow interior of Pt nanocluster-anchored Ag-Au nanostructures and change in the size of Pt nanoclusters by varying the injected molar ratio of Pt/Au were observed by transmission electron microscopy (TEM). Moreover, other morphological, compositional, and optical information of the obtained nanoscale materials were analyzed by X-ray diffraction analysis (XRD), inductively coupled plasma mass spectrometry (ICP-MS), and ultraviolet-visible spectroscopy (UV-vis). The electrocatalytic ability of the obtained Pt nanocluster-anchored hollow Ag-Au nanostructures toward MOR was confirmed by the results of cyclic voltametric (CV) measurements. The ease of three-step synthetic strategy and good electrocatalytic performance of the Pt nanocluster-anchored hollow Ag-Au nanostructures displayed their promising potential in the use of electrochemical oxidation of methanol.
Failing to Learn from Failure: How Optimism Impedes Entrepreneurial Innovation

Extant research shows that entrepreneurs are typically overly optimistic about their ventures’ prospects and that such optimism hampers performance. We analyze how dispositional optimism affects the adjustments to entrepreneurs’ expectations after they receive negative feedback on their task performance. We then explore the relationship between optimism and the effectiveness of innovation. Exploiting unique firm-level data and a laboratory experiment involving 205 entrepreneurs, we find that dispositional optimism is negatively associated with both the likelihood and extent of belief updating in response to negative feedback. Furthermore, dispositional optimism triggers a discrepancy—between innovation inputs and outputs—that reduces a firm’s innovation effectiveness.
Seized Ecstasy Pills: Infrared Spectra and Image Datasets

According to the World Drug Report 2020, cocaine and ecstasy are the most consumed stimulant drugs, with 19 and 27 million estimated users in 2018. In this context, large efforts are being made to design fast and cost-effective analytical methods to track and monitor the distribution networks of these synthetic drugs. Here, we share two datasets of ecstasy pills seized in the northeast of Switzerland between 2010 and 2011. The first contains 621 forensic-grade images of pills, while the second one consists of 486 mid-infrared (mIR) spectra. While both sets are not covering the same seizure, both provide high-quality data with orthogonal information to evaluate clustering and dimension reduction methods.
Attenuation and dispersion phenomena of torsional waves in self-weighted, inhomogeneous, pre-stressed poro-elastic and poro-viscoelastic stratified structure

ABSTRACT This paper studies torsional wave propagation in a poro-viscoelastic medium of finite thickness. The considered medium is clamped between an inhomogeneous poro-elastic medium of finite thickness and a poro-elastic half-space. Both finite layers are initially stressed and the half-space is self-weighted. Classical dynamical coupled theories have been used to explore the problem. Interior deformations are calculated analytically. A complex frequency equation has been obtained with the aid of suitable boundary conditions. The decomposition of the complex frequency equation into real and imaginary parts provides dispersion and damping equations. These frequency equations exhibited their reliance on the variation of attenuation coefficient, dissipation factor, inhomogeneity, initial stresses, Biot's gravity, porosity and thickness ratio parameters. The impacts of the aforesaid parameters have been extensively studied and demonstrated graphically.
At Play in the Field of Dreams: Theorising Attitudes, Perceptions and Practices of Law Students in conjunction with the Reflections of Early Career Commercial Lawyers

Australian law schools are tasked with forming students in their knowledge and understanding of the law, with many students aiming to fulfil their dreams of pursuing a legal career. Utilising Bourdieu’s conceptual tools, this article considers whether aspirations of being “real lawyers” are significantly influenced by motifs of career success predominantly linked to an “elite” tier of law practice. The attitudes and perceptions of law students can also positively or adversely shape their career path amidst the information at play in the law school space. Drawing on qualitative data, we have applied Bourdieu’s tools to understand undergraduate and practical legal training students’ responses to notions of career accomplishment. This is contrasted with the reflections of early career commercial lawyers about their law school experiences. With comparisons to contemporary surveys and research on student services for law students, along with their wellbeing, the article reasons that the assorted ambitions of law students requires a law school environment promoting a more diversified perspective of “real law” and “real lawyering”.
The content analysis and bibliometric mapping of CALL journal

Abstract The primary aim of this study was to investigate the methodological trends of the articles published in the Computer Assisted Language Learning (CALL) journal between 2014 and 2019 via content analysis. The secondary aim was to analyze the CALL journal with the bibliometric mapping method to reveal the keyword trend and identify the countries, universities, and authors that made the highest contribution to the journal between 2008 and 2019. Full texts of 310 articles were analyzed by content analysis and a meta-data set of 469 articles from the Clarivate Analytics Web of Science (WoS) database was evaluated by bibliometric mapping. According to the results, most of the studies published in the CALL journal employed a quantitative research design and were conducted at higher education level. Additionally, most of the studies focused on language skills when compared to other educational factors such as motivation and perception. ‘English as a foreign language’, ‘communication’, ‘motivation’, ‘telecollaboration’, ‘mobile learning’, ‘writing’, and ‘blended learning’ were revealed as the most common keywords used in the studies. Countries that had the largest contribution to the CALL journal included Taiwan, USA, and China, respectively. Moreover, Taiwan-based universities contributed the highest number of publications and the authors including Wu-Yuin Hwang, Siew Ming Thang, Greg Kessler, Rustam Shadiev, Chun Lai, Mark Peterson, Jai Li, Liwei Hsu, and Wen-Chi Vivian Wu had the highest numbers of publications.
The Effects of Corporate Social Responsibility Activities on Business Performance

ABSTRACT This study aims to examine the effects of CSR activities of Korean hospitality companies on their business performance. In addition, this study examines the effects of CSR activities of hotel companies among hospitality companies on their business performance. Donation is a representative activity of CSR. Analyses show that hospitality companies’ CSR activities have positive effects on their business performance. On the other hand, hotel companies’ CSR activities have negative effects on their business performance. The present study is meaningful in that it investigated the relationship between CSR activities, which have rarely been conducted in the hospitality industry, and business performance. Hotel companies should make more efforts so that their CSR activities would result in good business performance.
Investigating Destination Loyalty through Tourist Attraction Personality and Loyalty

ABSTRACT This study aims to validate the new concept of ‘tourist attraction personality’ and examine its effect on attraction and destination loyalty. Data were collected from 800 tourists in Macao using a quantitative survey method. The results show that tourist attraction personality has a significantly positive impact on attraction loyalty, in turn leading to destination loyalty. The tourist attraction personality was also found to act as a complementary partial mediator in the relationship between attraction and destination loyalty. Practically, when a destination seeks to become more distinctive in an increasingly competitive market, tourist attraction personality can be used as an essential marketing tool to assist in building the uniqueness of the destination and thus the destination loyalty through securing the tourists’ attraction loyalty. Overall, this study provides theoretical and practical insights into establishing competitive marketing strategies for tourism destinations.
Theoretical Considerations on Current Spreading in GaN-Based Light Emitting Diodes Fabricated with Top-Emission Geometry

We report theoretical considerations regarding current spreading in GaN-based light emitting diodes (LEDs) fabricated with top-emission geometry, in which sheet resistances of both top transparent electrodes and n-layers are taken into consideration, whereas vertical resistance associated with the p-contact and the p-layer is neglected. The current spreading length (L s ) is inversely proportional to the injected current density (J 0 ), namely, L s ∞ J 0 -1/2 , and can be increased as the sheet resistances of either the transparent electrode or the n-layer are reduced. The effects of the material parameters (sheet resistances of transparent electrode and n-layer) on current spreading and hence the LED performance are discussed.
Emergence pattern of Palmer amaranth (Amaranthus palmeri) influenced by tillage timings and residual herbicides

Abstract The evolution of multiple herbicide-resistant weeds, including Palmer amaranth, has necessitated the implementation of an integrated weed management (IWM) program. Understanding weed emergence patterns is critical for developing effective IWM strategies. The objective of this study was to evaluate the effect of tillage timings and residual herbicides on cumulative emergence and emergence pattern of Palmer amaranth. Field experiments were conducted in 2015 and 2016 in a field naturally infested with photosystem (PS) II and 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor-resistant Palmer amaranth near Shickley, Nebraska, in a bare ground study, with no crop planted in the plots, although residues from the preceding corn crop were present on the soil surface. Treatments consisted of shallow tillage timings (early, mid, and late), three premix corn or soybean residual herbicides, and a nontreated control. The Weibull function was fitted to cumulative Palmer amaranth emergence with day of year (DOY) and thermal time (TT) as independent variables. Year by treatment interaction was significant for time to 10%, 25%, 50%, 75%, and 90% Palmer amaranth emergence and cumulative emergence. The majority of Palmer amaranth seedlings emerged early, following early tillage with 90% cumulative emergence occurring on DOY 172 compared with DOY 210 to 212 for mid- and late-tillage, and DOY 194 for the nontreated control in 2015. In 2016, 90% of cumulative emergence following early-, mid-, and late-tillage (DOYs 201 to 211) were similar, and that of the nontreated control (DOY 188) was similar to that of early tillage. Nontreated control and PRE herbicide treatments had similar DOY values for 90% emergence in both years. The number of emerged Palmer amaranth seedlings over the season was higher with shallow tillage than no tillage or with the use of PRE herbicides. Nomenclature: Atrazine; bicyclopyrone; chlorimuron; flumioxazin; fluthiacet; mesotrione; pyroxasulfone; S-metolachlor; Palmer amaranth; Amaranthus palmeri S. Watson
An update of fire needle acupuncture for acute herpes zoster and prevention of postherpetic neuralgia in adults: a protocol for systematic review and meta analysis

Background:Herpes zoster, is one of the most familiar skin diseases in conducted a systematic review and meta-analysis in 2018 showed that fire needle acupuncture can relieve the pain caused by herpes zoster quickly and prevent the outcome of postherpetic neuralgia (PHN), with little side effects. The purpose of this study is to update the systematic review with the latest evidence. Methods: Four English (PubMed, Embase, the Cochrane Library, the Web of Science) and 4 Chinese databases (CNKI, Wanfang, VIP, and CBM) will be searched dating until 30 June 2020 for randomized controlled trials with no language restrictions. In addition, a hand search of the reference lists of included studies will also be done. Adults (aged 18–70) with acute herpes zoster (less than 7 days) using fire needle acupuncture will be included. Pairs of researchers will independently conduct the search, screen titles and abstracts, retrieve full texts of potentially eligible studies, assess the risk of bias, and conduct date extraction and synthesis. If there is any discrepancy in the whole process, consult a third researcher. For meta-analysis, the primary outcome is the pain intensity (visual analogue scale [VAS] pain scale; pain relieve of 30%, duration of pain), and the second outcome is incidence of PHN. A sequential analysis will be done to test the robustness of results of meta-analysis. The quality of evidence will be assessed using GRADE system. Results: The results will be published in a peer-reviewed journal. Conclusion: This study will provide the latest systematic review and meta-analysis of fire needle acupuncture for acute herpes zoster and prevention of PHN. Abbreviations: PHN = postherpetic neuralgia, PRISMA-P = Preferred Reporting Items for Systematic Reviews and MetaAnalyses for Protocols, RoB = Risk of Bias, TCM = traditional Chinese medicine, VAS = visual analogue scale.
Certification of the lead mass fraction in wine for comparison 16 of the International Measurement Evaluation Programme

Comparison 16 of the International Measurement Evaluation Programme (IMEP) focused on the evaluation of measurement performance for the determination of the Pb mass fraction in a commercial red wine, resulting in a demonstrated degree of equivalence for laboratories internationally. IMEP-16 wine test samples were tested for homogeneity and stability to pressure and temperature variations (isochronous comparison). Pb concentration in the average test sample was certified using the combination of a straightforward microwave sample digestion protocol and inductively coupled plasma isotope dilution quadrupole mass spectrometry applied as a primary method of measurement. Certification of SI traceable reference values was achieved to 1.2% relative expanded uncertainty (k = 2). Nearly half of the uncertainty was due to the measured sample homogeneity correction factor (1 ± 0.4%), followed by the contributions from the corrections for instrumental background and the dead time effects (respectively about 5% and 23% of the calculated combined uncertainty), and the contribution from the measurements performed to correct for mass discrimination effects (12.3% in total). 129 laboratories from 33 countries participated in IMEP-16. The results are spread over a broad range of values (from 2900 µg L−1), and one third lies below −50% or above +50% deviation from the certified Pb concentration. About 40% of all participants reported accurate results to within ±10% uncertainty. For the vast majority, measurement uncertainty was largely underestimated. The quality of results does not seem to be correlated either to the self-declared experience in this type of measurements, or to the type of analytical technique applied. Identical samples were distributed to 14 National Measurement Institutes (from 12 countries and the IRMM) within the frame of the CCQM-P12 pilot study. All their results were in agreement within ±10% of the IMEP-16 certified value, thus offering a striking contrast with the spread of IMEP-16 results.