Miracle-dz/UniFAR-FTUs huggingface dataset:
CoXercise - Perceptions of a Social Exercise Game and its Effect on Intrinsic Motivation

Regular physical activity is important for maintaining a good health, but a large percentage of the population does not exercise enough. Exercise games can improve motivation by combining exercise with game play. However, such games do not appeal to everyone and can become rapidly boring. Numerous motivational strategies have been investigated within exergames, but most focus on individual players or competition between players. Many teenagers and young adults spend significant time with social networks. In this research we develop a social exergame and evaluate users’ first impressions of such a game and its effect in intrinsic motivation. First impressions are important because they can shape users’ decisions to try something new, such as a game or exercise activity. We did a user study with 52 participants and using a quantitative and qualitative analysis show that our social exergame motivates users more than an equivalent single player game and that users perceive it as more enjoyable. Our research provides a new avenue to increase physical activity in young adults and to potentially appeal to user segments not interested in traditional exercise games.
Correlation and regression analysis of air-gap discharge and gas generation law in oil-paper insulation

The air gap discharge is the main pattern of partial discharge of transformer insulation paper.Studying the correlation of partial discharge and gas production rules is important to diagnose early generation and development of the paper oil insulation.The paper design a simulation experiment system of transformer partial discharge in laboratory,and study gas discharge and development characteristics under the condition of 60 ℃ and the way of increasing voltage method.By major-content method,six major factors are selected from 29 statistic operators.And the six major factors are independent with each other.Results show that there is correlation between six kinds of gas and six major factors by correlation and regression method,and multivariable linear regression model of six kinds of gas and six major factors is presented.The above results provide a new idea for further discussing the relationship between early development of transformer partial discharge and the rule of gas production in oil.
Secure Computation with Non-Equivalent Penalties in Constant Rounds

It is known that Bitcoin enables to achieve fairness in secure computation by imposing a monetary penalty on adversarial parties. This functionality is called secure computation with penalties . Bentov and Kumaresan (Crypto 2014) showed that it could be realized with O ( n ) rounds and O ( n ) broadcasts for any function, where n is the number of parties. Kumaresan and Bentov (CCS 2014) posed an open question: “Is it possible to design secure computation with penalties that needs only O (1) rounds and O ( n ) broadcasts? ” In this work, we introduce secure computation with non-equivalent penalties , and design a protocol achieving this functionality with O (1) rounds and O ( n ) broadcasts only. The new functionality is the same as secure computation with penalties except that every honest party receives more than a predetermined amount of compensation while the previous one requires that every honest party receives the same amount of compensation. In particular, both are the same if all parties behave honestly. Thus, our result gives a partial answer to the open problem with a slight and natural modification of functionality.
On an Information Theoretic Approach to Cardinality Estimation (Invited Talk)

This article is a companion to an invited talk at ICDT’2022 with the same title. Cardinality estimation is among the most important problems in query optimization. It is well-documented that, when query plans go haywire, in most cases one can trace the root cause to the cardinality estimator being far off. In particular, traditional cardinality estimation based on selectivity estimation may sometimes under-estimate cardinalities by orders of magnitudes, because the independence or the uniformity assumptions do not typically hold. This talk outlines an approach to cardinality estimation that is “model-free” from a statistical stand-point. Being model-free means the approach tries to avoid making any distributional assumptions. Our approach is information-theoretic, and generalizes recent results on worst-case output size bounds of queries, allowing the estimator to take into account histogram information from the input relations. The estimator turns out to be the objective of a maximization problem subject to concave constraints, over an exponential number of variables. We then explain how the estimator can be computed in polynomial time for some fragment of these constraints. Overall, the talk introduces a new direction to address the classic problem of cardinality estimation that is designed to circumvent some of the pitfalls of selectivity-based estimation. We will also explain connections to other fundamental problems in information theory and database theory regarding information inequalities. The talk
Analysis of the Energy Computation And Influence Factors of Electric Vehicle Range

Based on the principle that output and consumed energy of the battery set on EV are egual. The computation method of EV range is analyzed and verified by the experiments of HFF6112GK50-EV range. By the farther study on the experiments data, the EV battery set usage evaluation and influence factors of EV range are finally analyzed and some valuable conelusions are obtained.
The Citizens’ Audit On The Quality Of Democracy In Costa Rica: Improving Accountability And Civic Participation in a Mature Democracy

A disturbing citizens’ malaise runs increasingly deep in Costa Rica, the most enduring of Latin American democracies (Garita and Poltronieri 1997). Rising numbers of people disengage from public issues, or feel that public protests are the only way to “be heard”. Most political institutions (including the Judiciary) have dismal approval ratings (UNIMER 1999). Distrust of politicians and political parties has lead to a societal gridlock that hinders the State’s ability to carry on much needed economic and institutional reforms (Proyecto Estado de la Nación 1999). Thus, improving the quality of democratic life has become the key political issue in Costa Rica. Bringing back the citizenry into public life, and strengthening the democraticness of the polity, may help extricating public deliberation and policy making from fingerpointing, stalling and “exit”. Precisely, this is what the Citizen's Audit on the Quality of Democracy works towards.
Factors affecting job satisfaction : a case study of private universities of Pakistan

This study aims to investigate how the interpersonal relationship and promotion opportunities associate with job satisfaction of academic staff permanently employed in private sector higher education institutions.It was a quantitative research with correlational research design. A questionnaire was developed to collect data from 150 permanent faculty members of the private sector higher education institutions in Karachi, Pakistan. Descriptive statistics, partial correlation, Anova and collinearitytests were used to analyze the data collected and model developed for the study. Results of the study revealed that interpersonal relationships at work and promotion opportunities are the factors positively related with the job satisfaction of the permanent academics employed in private sector higher education institutions. Future research can replicate the framework of this study in other settings and for comparative studies in other organizations. Time and Cost, two constraints kept study restricted to only 150 permanent academics employed in private sector higher education institutions of Karachi Pakistan. This paper will contribute to the existing literature about positive relationship among interpersonal relationship, promotion opportunities and job satisfaction of academics permanently employed in higher education institutions. This study will benefit management of the private sector higher education institutions and government authorities to revisit their current practices and policies related to the phenomenon investigated.
Visitor perceptions of the roles of tour guides in Kakum National Park in Ghana

Abstract National parks are global cornerstones supporting not only biodiversity conservation but also educational and recreational opportunities. Based on these opportunities, ecotourism has gained wide application in national parks as a sustainable form of tourism, providing visitors with recreational and educational opportunities to garner support for biodiversity conservation. Tour guides play vital roles to support these opportunities whiles ensuring appropriate behaviours and attitudes of visitors in the park. The performance of these roles potentially influences visitors’ satisfaction, which has the potential to ensure repeat visits, referrals, and financial success of national parks and other protected areas. However, the literature indicates limited studies examining visitor satisfaction with tour guiding. Therefore, this paper investigated visitors’ perceptions of the importance and performance of the roles of tour guides in order to identify areas needing management interventions to improve visitor satisfaction. Using convenient sampling, questionnaires were administered to 200 visitors to rate the importance and performance of a set of role attributes of tour guiding. The data were subjected to descriptive, gap and grid analyses. The results showed that there were role attributes that were important to the experiences sought by visitors. Also, some attributes were identified that required management intervention and re-allocation of resources to improve visitor satisfaction.
Administrative corruption and the challenges of entrepreneurship development

Objective: In recent years, the study on the corruption in the governmental sector has been concerned and grown. Corruption is an endemic and global phenomenon and therefore, it should be acknowledged that the corruption and dealing with it are challenge in many countries of the world. Methodology: Given the plans have been accomplished to deal with this phenomenon by the countries, but we witness its growing trend in different sectors of the society again. The entrepreneurship subject is one of the topics emphasized in the economic development. The economic development publicly and entrepreneurship specifically are from the domains which are not immune from these effects. Results: This research explains the role of administrative corruption on the entrepreneurship development. In the first part, a summary of the concepts of corruption, entrepreneurship, correlation between corruption and entrepreneurship is presented and in the second part, the situation in Iran is examined based on data collected from International Transparency Institute and Global Development Entrepreneurship Institute. Conclusion: Research findings suggest that corruption can have a positive or negative impact on entrepreneurship, but its impact is more severe and more harmful. Also, according to the statistics provided, it can be concluded that with an approximate fixation of the rate of corruption over the past few years, entrepreneurship development in Iran has grown modestly.
Interaction of Methyl red with Cetylpyridinium chloride in Methanol-water system

Highlights • This paper focuses on interaction between methyl red and cetylpyridinium chloride. • Critical micelle concentration of cetylpyridinium chloride determined in presence of methyl red. • 0.1 to 0.4 volume fractions of CH 3 OH provided precise measure of the methyl red spectrum. Abstract The interaction between methyl red (azo dye) and cetylpyridinium chloride (cationic surfactant) in the methanol-water system were studied using a spectrophotometric technique. Variable parameters like constant dye concentration and its structure, surfactant concentration, pH, absorbance, and solvent composition were studied. Using the UV-Vis technique, critical micelle concentrations (CMCs) of cetylpyridinium chloride were measured with methyl red. The spectral data were analyzed and determined the differential absorbance, binding and partition constants, partition coefficient, the Gibbs free energy of binding and partition in mixed solvent media (0.1, 0.2, 0.3, 0.4 volume fraction (v.f.)s of methanol, respectively).
UCB-Based Route and Power Selection Optimization for SDN-Enabled Industrial IoT in Smart Grid

As an essential building block for smart grid, the industrial internet of things (IIoT) plays a significant role in providing powerful sensing capability and ubiquitous connectivity for differentiated power services. The rapid development of smart grid imposes higher data monitoring and transmission requirements in terms of delay and energy efficiency. However, due to the severe electromagnetic interference (EMI) caused by massive electrical equipment, the transmission performance of IIoT becomes inferior. The traditional single-hop transmission mode evolves towards a multihop cooperation mode to satisfy differentiated quality of service (QoS) requirements. In this paper, we propose an upper confidence bound- (UCB-) based joint route and power selection optimization algorithm to support multihop cooperation mode evolution, which adopts a software-defined networking- (SDN-) enabled IIoT network framework to simplify network configuration and management. Compared with existing local-side-information-based route selection (LSI-RS) and random route selection (RRS) algorithms, simulation results demonstrate that the proposed algorithm has superior performances in total delay, energy efficiency, and utility.
Effectiveness of Combination of Chitosan Gel and Hydroxyapatite from Crabs Shells (Portunus pelagicus) Waste as Bonegraft on Periodontal Network Regeneration through IL-1 and BMP-2 Analysis

Background Periodontitis can be treated by regenerating periodontal tissue using a bone graft. Several natural materials such as chitosan and minerals such as hydroxyapatite can be developed to increase periodontal tissue regeneration. Chitosan has a high potential in healing wounds. Hydroxyapatite has excellent properties such as biocompatibility, osteoconductive, osteoinductive, and osteogenesis, making it an ideal material for soft and hard tissue regeneration. Chitosan and hydroxyapatite can be obtained from the shells of crustaceans, such as crabs shells (Portunus pelagicus). Objective To assess the effectiveness of the combination of chitosan gel and hydroxyapatite powder as a bone graft on periodontal tissue regeneration in experimental animals. Periodontal tissue regeneration was assessed by expressing inflammatory cytokine gene indicators IL-1 and BMP-2. Methods Experimental laboratory research and clinical trials with posttest only control group design. Twenty-seven Wistar rats were divided into three groups. Then the femoral bone defect was made, the positive control group was given placebo gel, the positive control group was given BATAN hydroxyapatite, and the test group was given a combination of chitosan gel and hydroxyapatite crab shells. Wistar rats were sacrificed on days 7, 14, and 21, and the femur bone was then taken for immunohistochemical analysis to determine the levels of IL-1 and BMP-2. The Kolmogorov–Smirnov test, Levene test, and one-way ANOVA analyzed the data. Results On days 7, 14, and 21, the expression levels of IL-1 and BMP2 were significantly different between the three groups. The group added with chitosan gel and crab shell HA showed a faster decrease in IL-1 expression than the control group. BMP-2 expression increased in the test group compared to the control group. Conclusion The combination of chitosan gel and hydroxyapatite inhibited the production of proinflammatory cytokines and increased the production of BMP-2.
Explaining Resident Attitudes toward Wind Energy Development in the Sandhills

abstract:Like other regions across the Great Plains, the Sandhills of Nebraska has been identified as a promising region for the expansion of wind energy development. But residents have mixed views regarding their support for the industry. In this study, we seek to examine the attitudinal and socio-demographic factors that contribute to individuals' support or opposition to the development of wind energy in Brown County, Nebraska. We collected data from a 37-question mail survey that was completed by more than 150 residents. Our analysis found that concerns about visual unattractiveness and perceived health effects were the most salient concerns driving opposition to wind energy development. The perceptions of job creation by wind energy and of unfair treatment in the planning and siting process influence wind attitudes when examined independently but are not significant net of other variables. Additionally, the perceived frequency of seeing turbines and party identification have significant effects on attitudes of support toward wind. We discuss how these results illustrate the context-dependent nature of attitudes toward wind— and how that might influence patterns of wind acceptance and resistance in different contexts across the Great Plains.
A Meta-Analysis of Statin Use and Risk of Hepatocellular Carcinoma

Background The use of statins is a potential protective factor against the development of hepatocellular carcinoma. Therefore, we conducted a meta-analysis to evaluate the contribution of statins to the risk of hepatocellular carcinoma. Methods We searched for PubMed and EMBASE through January 2021. Results Thirty-two studies (eighteen cohort, eleven case-control, and three randomized controlled trials) reporting 56,838 cases of hepatocellular carcinoma in 4,963,518 persons were included. Statin users were less likely to develop hepatocellular carcinoma than nonusers (adjusted odds ratio, 0.58; 95% CI: 0.51–0.67). Stratified analysis showed that statins reduced the risk of hepatocellular carcinoma in Asian and Western populations (odds ratio, 0.54 vs. 0.60). Besides, statins have protective effects against hepatocellular carcinoma after hepatitis B virus (odds ratio, 0.44; 95% CI: 0.22–0.85) and hepatitis C virus infections (odds ratio, 0.53; 95% CI: 0.49–0.57). Statins have protective effects on people with chronic liver disease (odds ratio, 0.52; 95% CI: 0.40–0.68) and on the general population (odds ratio, 0.60; 95% CI: 0.50–0.72). Lipophilic statins can prevent hepatocellular carcinoma (odds ratio, 0.51, 95% CI: 0.46–0.57), while hydrophilic statins cannot (odds ratio, 0.77, 95% CI: 0.58–1.02). The single-drug analyses showed that simvastatin (odds ratio, 0.53, 95% CI: 0.48–0.59), atorvastatin (odds ratio, 0.54, 95% CI: 0.45–0.64), rosuvastatin (odds ratio, 0.55, 95% CI: 0.37–0.83), lovastatin (odds ratio, 0.30, 95% CI: 0.15–0.62), and pitavastatin (odds ratio, 0.36, 95% CI: 0.17–0.75) had significant benefits. Further studies have shown that those in the high-dose group experienced better effects in preventing hepatocellular carcinoma (adjusted hazard ratio, 0.38 vs. 0.55). Further research found that the combined use of aspirin did not increase the chemoprevention effect of liver cancer (odds ratio, 0.57; 95% CI: 0.40–0.81). In addition, the preventive effect of statins improved with the extension of follow-up time (odds ratio, 0.54 vs. 0.65). Conclusion Our meta-analysis shows that the use of statins is associated with a lower risk of liver cancer.
Smart grids and renewables– A guide for effective deployment

Smart grids and renewables : A guide for effective deployment / Ruud Kempener (IRENA), Paul Komor and Anderson Hoke (University of Colorado). IRENA, November 2013, 47 p. http://www.irena. org/DocumentDownloads/Publications/smart_grids. pdf Presentation (© IRENA) : The steady growth of renewable energy technologies and cost-competitiveness of solar and wind power call for a smarter approach to power-grid management. This working paper from the International Renewable Energy Agency (IRENA) provid.
Electromigration of SnAgCu-Bi-Ni Pb-free Micro Solder Joints

In this paper,the electromigration behavior of 400μm sized solder interconnects(SnAgCu-Bi-Ni,Ag1%) was investigated.Current stressing tests were conducted with assembled BGA package at different temperatures for different periods.The microstructure evoluation at the interface and hardness gradient distribution inside older bulk were studied.The results indicated that after the electromigration test,the intermetallic compounds(IMC) disappeared and a large number of micro voids appeared closeto cathode area where the copper were consumed obviously.A large amount of(Cu,Ni)6Sn5 IMC and hillocks were observed at the anode.With current stressing,the hardness of solder joint increased from cathode to anode.High aging temperature increases electromigration behavior significantly.
Facile preparation of modified Fe-graphene hydrogel with enhanced removal of perfluorooctanoic acid

In a facile one-step hydrothermal process, Fe-graphene hydrogel FC1 was prepared through the reaction of graphene and iron ions, besides that, FC2 to FC5 were prepared with the addition of ethylene glycol (EG), EG+NaClO, EG+ ascorbic acid (VC)+NaClO and EG+VC respectively. EG showed to promote the assembly process of graphene hydrogels. The structure of the hydrogel FC4 had the lowest degree of agglomeration and the most porous structure among the samples, indicating that the graphene and iron oxides could support each other with the addition of VC and NaClO. The iron crystals in FC1 and FC5 were α-FeOOH, in FC2 and FC3 were α-FeOOH and Fe3O4, while in FC4 were Fe3O4 and Na3FeO4. The perfluorooctanoic acid (PFOA) removal by FC1 to FC5 through Fenton reaction were 73.61%, 75.2%, 84.35%, 89.9% and 75.44% respectively. The PFOA removal through adsorption by FC4 was 41.5%. PFOA removal by FC4 could reach equilibrium in 120 min. Based on the Langmuir model, FC4 had higher maximum adsorption capacity (218.4 mg/g) for PFOA than FC1 (158.3 mg/g). The Fe-graphene hydrogels had excellent removal performance in a wide pH range, and the removal rates were retained well over 5 cycles.
The relationship between strategic human resource management and job performance with the role of knowledge management Sayyad Shirazi hospital staff Gorgan

The aim of this study was to investigate the relationship between strategic human resource management and job performance with the role of knowledge management is the hospital staff Sayyad Shirazi Gorgan. Methodology: The research method used descriptive, correlational survey research. The target population included all Sayyad Shirazi Gorgan hospital staff to 600 people. The sample is proportional to the number of people using Morgan table, 234 people were selected by simple random sampling. Results: The research data were collected by library and field methods and tools used standard questionnaires. Cronbach's reliability and validity of the method of using content approved have taken. In order to analyze the data, structural equation modeling using LISREL software has been used. Conclusion: The results show that the strategic management of human resources with job performance with the role of knowledge management There is a significant relationship between hospital staff Sayyad Shirazi Gorgan.