Miracle-dz/UniFAR-FTUs huggingface dataset:
Pt Nanoparticles Supported on Mesoporous CeO2 Nanostructures Obtained through Green Approach for Efficient Catalytic Performance toward Ethanol Electro-oxidation

In this report, an easy and green approach to the synthesis of mesoporous cerium oxide (CeO2) nanostructures and followed by supporting platinum nanoparticles (NPs) on CeO2 nanostructures (Pt/CeO2) and their application as versatile electrocatalysts for ethanol electrooxidation has been established. The synthesis of mesoporous Pt/CeO2 nanostructures involves two steps. First, mesoporous CeO2 nanostructures were synthesized via macroalgae polymer mediated approach and followed by supporting of PtNPs of ca. 5–10 nm over the mesoporous CeO2 nanostructures using seed-mediated chemical reduction process. The structural and spectroscopic characterization techniques such as transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman, X-ray photoelectron spectroscopy (XPS), and small-angle X-ray scattering (SAXS) studies confirm the strong coupling between PtNPs and the mesoporous CeO2 support resulting in the generation of more oxygen vacancies, which can facilitate the enhanced charge transport at th.
The Release of Inertial Instability Near an Idealized Zonal Jet

Inertial instability is a hydrodynamic instability that occurs in strong anticyclonic flow and is typically diagnosed by negative absolute vorticity in the Northern Hemisphere. As such, inertial instability is often observed on the anticyclonic‐shear side of jet streams, yet the release of the instability in this environment is still poorly understood. We construct an idealized midlatitude zonal jet and perform two experiments: one control simulation with no inertial instability and one experiment with inertial instability simulating its release. We find that the release of the instability results in meridional wind perturbations of up to 7 m s−1 over 200 km that persist for several days, in addition to radiating inertia–gravity waves several hundreds of kilometers away from the unstable region. Furthermore, these perturbations instigate light–moderate occurrences of clear‐air turbulence around the unstable region that persist for up to 12 h.
The Wood Preservative Potentials of Valonia, Chestnut, Tara and Sulphited Oak Tannins

This study investigated antifungal properties of four different tannins as potential environmentally friendly wood preservatives. Scots pine wood samples were impregnated with 3, 5, 10, and 15% valonia, chestnut, tara, and sulphited oak tannins, and then were exposed to brown rot fungi Coniophora puteana and Postia placenta, and white rot fungi Trametes versicolor and Pleurotus ostreatus attack to determine the best tannin type and the optimum concentration level for sufficient decay resistance. Leaching test was conducted in order to evaluate any loss in effectiveness in decay resistance due to possibility of tannin leaching. Tannins were found efficacious in suppressing brown rot fungi attacks when no leaching prior the decay test was used, however, they seemed to be ineffective against white rot fungi attacks. The lowest weight losses were obtained with valonia and chestnut tannins both for brown and white rot fungi probable related with their high ellagic tannin content.
The Role of Job Satisfaction and Organizational Citizenship Behavior on Performance: Evidence from Indonesian Teachers

This study aimed to measure the effect of job satisfaction and organizational citizenship behavior on the teacher performance of private school teachers in Tangerang. The data collection was done by simple random sampling via electronic to the private school teacher population in Tangerang. The returned and valid questionnaire results were 113 samples. Data processing was used SEM method with SmartPLS 3.0 software. The results of this study concluded that job satisfaction and organizational citizenship behavior have a positive and significant effect on teacher performance. Besides, job satisfaction has a positive and significant effect on organizational citizenship behavior. This new research proposed a model for building the teacher performance among the private school teachers in Tangerang through enhancing job satisfaction and organizational citizenship behavior. This research could pave the way to improve teacher readiness in facing the era of education 4.0.
Improved Oncologic Outcomes Following Laparoscopic Surgery for Small T4 Colon Cancer : A Multi-center Comparative Study

Background: Laparoscopic surgery for T4 colon cancer may be safe in selected patients. Based on the theory that small tumor size might preoperatively predict a good laparoscopic surgery outcome, we herein compare the clinicopathologic and oncologic outcomes of open and laparoscopic surgery in small T4 colon cancer.Methods: In a retrospective multicenter study, we reviewed the data of 449 patients, including 117 patients with tumors ≤4 cm, who underwent T4 colon cancer surgery between January 2014 and December 2017. We compared the clinicopathologic and 3-year oncologic outcomes between the laparoscopic and open surgery groups.Results: Blood loss, length of hospital stay, and postoperative morbidity were lower in the laparoscopic group than in the open group (86 mL vs. 278 mL, p < 0.001; 10.0 days vs. 12.5 days, p = 0.003; and 18.0% vs. 29.5%, p = 0.005, respectively). There were no intergroup differences in overall survival (OS) and 3-year disease-free survival (DFS; 87.8% vs. 83.2%, p = 0.117; 69.5% vs. 68.1%, p = 0.408, respectively). Among patients with tumors of size ≤4 cm, blood loss was lower in the laparoscopic surgery group than in the open group (80 mL vs. 208 mL, p = 0.001); despite no statistical difference observed in the 3-year OS (84.4% vs 78.7%, p = 0.442), the laparoscopic group had a better 3-year DFS (73.8% vs. 46.0%, p = 0.004). Conclusions: Laparoscopic surgery showed similar outcomes to open surgery in T4 colon cancer patients, and may have favorable short-term oncologic outcomes in patients with small T4 tumors.
The influence of the nitrogen/nickel‐ratio on the cyclic behavior of austenitic high strength steels with twinning‐induced plasticity and transformation‐induced plasticity effects

Austenitic high nitrogen (AHNS) and austenitic high interstitial steels (AHIS) are of interest for mechanical engineering applications because of their unique combination of mechanical (strength, ductility), chemical (corrosion resistance) and physical (non‐ferromagnetic) properties. But despite their high strength values e. g. after cold deformation up to 2 GPa in combination with an elongation to fracture of 30 %, which is based on twinning‐induced plasticity (TWIP) mechanisms and transformation‐induced plasticity (TRIP) mechanisms, the fatigue limit remains relatively small. While for chromium‐nickel steels the fatigue limit rises with about 0.5‐times the elastic limit it does not at all for austenitic high‐nitrogen steels or only to a much smaller extent for nickel‐free austenitic high‐interstitial steels. The reasons are still not fully understood but this behavior can roughly be related to the tendency for planar or wavy slip. Now the latter is hindered by nitrogen and promoted by nickel. This contribution shows the fatigue behavior of chromium‐manganese‐carbon‐nitrogen (CrMnCn) steels with carbon+nitrogen‐contents up to 1.07 wt. %. Beside the governing influence of these interstitials on fatigue this study displays, how the nitrogen/nickel‐ratio might be another important parameter for the fatigue behavior of such steels.
Time-Varying Comovements in Developed and Emerging European Stock Markets: Evidence from Intraday Data

We study comovements between three developed (France, Germany, the United Kingdom) and three emerging (the Czech Republic, Hungary and Poland) European stock markets. The novelty of our paper is that we apply the Dynamic Conditional Correlation GARCH models proposed by Engle (2002) to five-minute tick intraday stock price data for the period from June 2003 to January 2006. We find a strong correlation between the German and French markets and also between these two markets and the UK stock market. By contrast, very little systematic positive correlation can be detected between the Western European stock markets and the three stock markets of Central and Eastern Europe, as well as within the latter group.
ARISTOTELIAN RHETORIC AND POLITICAL CAMPAIGN ON FACEBOOK IN NIGERIA’S 2011 ELECTIONS

The study is a rhetorical analysis of the contents of the Facebook page of one of Nigeria’s presidential candidates, Jonathan Goodluck during the country’s 2011 Presidential elections. The study tries to shift focus from social media impact studies to the contents of the actual message used on social media during political campaigns. Thus, providing insights into how politicians embellish their language use online to give it extra effects in order to win sympathy and votes. The study adopts an innovative perspective by extending the Aristotelian theory of persuasion for analyzing the types of messages used in social media as against the tool’s impacts and effects, which is common in the literature. The analysis was conducted with the aid of ATLASti qualitative data analysis software and was carried out in two phases to reflect the research objectives, which are to analyse the Aristotelian elements of persuasion and to appraise the most recurring themes in the message contents. Findings reveal that Goodluck Jonathan uses more emotional and logical appeal to connect to his audience, presenting the story of his personal life and that of his family while deliberately avoiding contentious and controversial political issues. Findings further reveal that social media provides an alternative platform for maintaining political loyalty and at the same time presenting a new form of politics referred to as fandom politics. This uses emotion instead of logic to win the support and loyalty of the electorates, and de-emphasizes rationality while encouraging political loyalty from potential voters.
An Investigation on Maintainability of Update Methods in Game Loops

Previous researches revealed that games software has different contexts such as demand for early implementation of play-test feedback and a high runtime performance. The demand may disturb the maintainability of source code, while the increased size of games software requires maintainability. This paper investigates the extent that the maintainability is considered in games software. We focus on the maintainability of update methods in game loops because update methods are a common architecture and can be implemented with either low or high maintainability. Following an explanatory sequential design, we investigate the implementation of update methods in popular repositories in GitHub and conduct semi-structured interviews with commercial games software developers to inquire about whether the results of the investigation are realistic in commercial games software. The investigation shows that update methods are implemented with conditional branches with state variables (lower maintainability) in 39 repositories and the State design pattern (higher maintainability) in 1 repository. In the interviews, 8 out of 11 commercial games software developers indicated that the results of the investigation are common in commercial games software.
An Embodied Conversational Agent in an eHealth Self-management Intervention for Chronic Obstructive Pulmonary Disease and Chronic Heart Failure: Exploratory Study in a Real-life Setting

Background Embodied conversational agents (ECAs) have the potential to stimulate actual use of eHealth apps. An ECA’s design influences the user’s perception during short interactions, but daily life evaluations of ECAs in health care are scarce. Objective This is an exploratory, long-term study on the design of ECAs for eHealth. The study investigates how patients perceive the design of the ECA over time with regard to the ECA’s characteristics (friendliness, trustworthiness, involvement, expertise, and authority), small talk interaction, and likeliness of following the agent’s advice. Methods We developed an ECA within an eHealth self-management intervention for patients with both chronic obstructive pulmonary disease (COPD) and chronic heart failure (CHF), which we offered for 4 months. Patients rated 5 agent characteristics and likeliness of following the agent’s advice before use and after 3 and 9 weeks of use. The amount of patients’ small talk interaction was assessed by log data. Lastly, individual semistructured interviews were used to triangulate results. Results Eleven patients (7 male and 4 female) with COPD and CHF participated (median age 70 years). Patients’ perceptions of the agent characteristics did not change over time (P>.05 for all characteristics) and only 1 participant finished all small talk dialogues. After 3 weeks of use, the patients were less likely to follow the agent’s advice (P=.01). The agent’s messages were perceived as nonpersonalized and the feedback as inappropriate, affecting the agent’s perceived reliability. Conclusions This exploratory study provides first insights into ECA design for eHealth. The first impression of an ECA’s design seems to remain during long-term use. To investigate future added value of ECAs in eHealth, perceived reliability should be improved by managing users’ expectations of the ECA’s capabilities and creating ECA designs fitting individual needs. Trial Registration Netherlands Trial Register NL6480; https://www.trialregister. nl/trial/6480
Minerals and Mine Drainage

This chapter reviews the literature pertaining to environmental processes that affect mineral dissolution reactions and the generation of acid mine drainage, the fate and transport of metal contaminants within the environment, the toxic influences of metals and mine drainage on aquatic species, characterization of abandoned mines and their potential for contamination, and technologies for remediation of mining-impacted systems or removing metals from wastewater streams.
A Green Route to Produce Adipic Acid on TiO2–Fe2O3 Nanocomposites

In this work, we study cyclohexene oxidation by molecular oxygen on doped-TiO2. The improvement of the oxidizing capacity of titanium oxide by doping with iron oxide at different molar ratios is checked. All materials with different molar ratios (Ti/Fe = 9, 4, and 2) are prepared by the sol–gel method and fully characterized by ICP, XRD, SEM, DR/UV–vis, IR, and N2 adsorption/desorption. The results show that iron is successfully incorporated into the titanium matrix but the incorporated amount is limited. In catalytic tests, improved activity is noticed while using TiO2 in the presence of Fe2O3, which is due the improved oxidation. Conversion in the range of 21–42% depending on the presence of iron oxide was obtained with excellent yield of adipic acid (97% selectivity).
Stochastic Volatility in Mean. Empirical Evidence from Stock Latin American Markets

Utilizando un modelo de volatilidad estocástica en la media (SVM), realizamos un estudio empírico de los índices latinoamericanos en vivo para ver el impacto de la volatilidad en la media de los retornos. Utilizamos la dinámica hamiltoniana de MCMC. Los resultados indican que la volatilidad tiene un impacto negativo en los rendimientos, lo que sugiere que el efecto de retroalimentación de la volatilidad es más fuerte que el efecto relacionado con la volatilidad esperada. Este resultado es claro y contrario al hallazgo de Koopman y Uspensky (2002). Los demás países presentan valores negativos pero la cola superior de los intervalos se acerca al valor cero.
Healthcare in the Netherlands

What do we know about the Netherlands — a small country in western Europe? This state is home to about 17 million inhabitants who are fluent in at least two languages. Contrary to popular belief that the Netherlands is the birthplace of tulips, these flowers were brought there from Turkey in the 16th century, and only then became the real treasure of this country [2]. The Netherlands became the first country in the world to legalize euthanasia. Prostitution was legalized there in 2001, and women of easy virtue even have the right to a pension when they reach a certain age. It is allowed to drink alcohol from the age of 16 in the Netherlands, and soft drugs can legally be purchased in coffee shops. The Netherlands is also distinguished by a very high percentage of «home birth» cases — every fifth resident of this country gave birth to her child outside the hospital. The Netherlands is sometimes mistakenly called Holland, but this is fundamentally wrong: only two of the 12 districts have such a name — North and South Holland. This fact has been fixed at the state level most recently — all government facilities,institutions, embassies are obliged to refer to this country exclusively as the Kingdom of the Netherlands from now on.
The (a)symmetric effects of income and unemployment on popular demand for redistribution

Abstract Numerous studies show that those with lower income and the unemployed support more redistribution, which is attributed to material self-interest. However, recent studies assessing within-individual changes result in smaller and less consistent effect estimates. To explain why preferences do not narrowly follow material self-interest, this study argues that the effects of income and unemployment may be asymmetric, implying that improving and deteriorating material circumstances exert differently sized effects. The claims are tested using panel data from Great Britain and a weighted difference-in-difference estimator. The results show that only income increases (negatively) affect redistribution support while income decreases have null effects. In contrast, unemployment is estimated to have a strong and symmetrical effect in line with self-interest theory. These results add further evidence for the validity of self-interest theories but suggest that individuals are only boundedly rational. Supplemental data for this article can be accessed online at: https://doi.org/10.1080/01402382.2021. 1963139 .
Oxidation State Specific Detection of Transuranic Ions in Solution

A detailed and predictive understanding of actinide ion transport by groundwater through geological strata has yet to be achieved. New experimental techniques are needed to detect both the oxidation state and the chemical behavior of these ions at very low concentrations. Laser techniques based on the optical properties of actinide ions are evaluated as probes for identification of the oxidation state of a specific ion. A laser-induced fluorescence study of aquo curium 3+ ion is reported. This technique is extremely sensitive but of limited applicability to actinide ions in solution. Thermal lensing spectroscopy, applicable to all actinide ion oxidation states in solution, is being developed. Preliminary results indicate that actinide ion concentrations between 2 and 100 μmol/m3 can be detected in aqueous solution using thermal lensing. The exact detection limit depends on the actinide ion, its oxidation state, and the spectral region used for the investigation. A means of overcoming the sensitivity limit.
Hypothalamo-pituitary-adrenal axis activity and related factors in adolescent during a tennis tournament

Aim: Adolescence is an important period of development and during this period young people are more susceptible to mental illnesses. Therefore, a comprehensive knowledge of the factors that mediate stress response can help developing our understanding of these diseases. The aim of this study is to examine the activity of hypothalamo–pituitary–adrenal axis and determine factors affecting this activity in adolescents. Material and Methods: The adolescents between the ages of 14 and 17, who participated in the official amateur tennis tournament, were included in the study. The data form, including questions for the assessment of the stress level and sociodemographic variables was filled. Then, salivary cortisol levels were measured before (-5 minutes) and after (+5 minutes) the first match of the official tennis tournament. Results: The mean salivary cortisol levels were 40.8±53.8 ng/ml, before the game and 98.8±150.5 ng/ml, after the game (p=0.008). The salivary cortisol levels were statistically higher, after the game, in males, those who won, and those who felt anxious compared the before. Conclusion: The results of this study showed that salivary cortisol level can be used in the assessment of stress response in adolescents and various factors such as gender, mood, and state of winning are effective on cortisol response.
Synthesis, characterization and photocatalytic activity of Mn2O3/Al2O3/Fe2O3 nanocomposite for degradation of malachite green

A Mn 2 O 3 /Al 2 O 3 /Fe 2 O 3 nanocomposite photocatalyst was prepared by a co-precipitation method. Flame atomic absorption spectroscopy (FAAS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), and UV–Vis diffuse absorption spectroscopy (UV–Vis DAS) were employed to study elemental composition, functional group identification, structure, morphology, and band gap of the as-synthesized nanocomposite. The highest photodegradation efficiency was recorded for the sample containing the 10/10/80 percentages composition of Mn 2 O 3 /Al 2 O 3 /Fe 2 O 3, respectively. The average crystallite size calculated from XRD for this sample was 40 nm. UV-Vis diffuse absorbance of the sample showed strong absorption in visible region at 550 nm, which is comparable to Fe 2 O 3 which has absorption at 563.6 nm. This confirmed that coupling with alumina and manganese oxide did not contribute to the band gap narrowing but to delay the electron-hole recombination as witnessed by the highest photodegradation efficiency. KEY WORDS : Co-precipitation method, Nanocomposite, Photocatalyst, Photodegradation, Malachite green Bull. Chem. Soc. Ethiop. 2018 , 32(1), 101-109 DOI: https://dx.doi. org/10.4314/bcse.v32i1. 9
3D measurement of temperature and metal vapor concentration in MIG arc plasma using a multidirectional spectroscopic method

3D measurement for MIG arc plasma was developed with 12 cameras equipped with 3 types of interference filters. Abstract Spectroscopic measurements for metal inert gas (MIG) arc plasma have been recently performed. The studies have reported that the central core of the MIG arc has low temperature owing to the high radiation loss of iron vapor. In these studies, it was assumed that the MIG arc phenomenon is axially symmetric because of the measurement method using Abel inversion. GMA welding, including MIG arc welding, is normally performed with a travel speed and most of the phenomena become axially asymmetric. Tomographic measurement is required to obtain the internal emission intensity distribution of axially asymmetric phenomena. This study reports on a multi-directional and heterochromatic measurement system that can capture such axially asymmetric plasma. The proposed system is composed of 12 CCD cameras with three types of narrowband interference filters (one Ar I line and two Fe I lines). Each line intensity distribution was obtained using an image reconstruction method. We converted the line intensities into plasma temperature and iron vapor concentration by using the relative intensity method, absolute sensitive calculation, and solving the Saha equation under the LTE assumption. We measured a pulsed MIG welding process and observed that the temperature of the central area of the MIG arc plasma was lower than the outer area, as shown in recent conventional studies. We found such temperature and iron vapor distributions were drawn backwards along the welding line, and the time variation of the iron vapor concentration corresponded to the current pulse shape. We achieved the 3D measurement of the MIG arc through error estimation and comparison with the previous 2D studies.