Miracle-dz/UniFAR-FTUs huggingface dataset:
Fabrication of Biomass Derived Pt-Ni Bimetallic Catalyst and Its Selective Hydrogenation for 4-Nitrostyrene

The hydrogenation products of aromatic molecules with reducible groups (such as C=C, NO2, C=O, etc.) are relatively critical intermediate compounds in fine chemicals, but how to accurately reduce only specific groups is still challenging. In this work, a bimetallic Pt-Ni/Chitin catalyst was prepared for the first time by using renewable biomass resource chitin as support. As the carrier, the chitin was constructed into porous nanofibrous microspheres through the sol-gel strategy, which was favorable for the adhesion of nano-metals and the exchange of reactive substances due to its large surface area, porous structure, and rich functional groups. Then the Pt-Ni/Chitin catalyst was applied to selective hydrogenation with the model substrate of 4-nitrostyrene. As the highly dispersed Pt-Ni NPs with abundant exposed active sites and the synergistic effect of bimetals, the Pt-Ni/Chitin catalyst could efficiently and selectively hydrogenate only NO2 or C=C with yields of ~99% and TOF of 660 h−1, as well as good stability. This utilization of biomass resources to build catalyst materials would be important for the green and sustainable chemistry.
Building Fully Adaptive Stochastic Models for Multiphase Blowdown Simulations.

Building Fully Adaptive Stochastic Models for Multiphase Blowdown Simulations by Isaac Asher Chair: Krzysztof J. Fidkowski A new method for uncertainty quantification (UQ) that combines adaptivity in the physical (deterministic) space and the stochastic space is presented. The sampling-based method adaptively refines the physical discretizations of the simulations, along with adaptively building a stochastic model and adding samples. UQ studies can be very expensive due to complex physics requiring large physical solutions and due to a large number of parameters which results in a very large stochastic space to explore and model. The new UQ method can result in lower errors and lower cost by balancing different sources of error. By adaptively refining the physical and stochastic models, an overall prescribed error level can be reached without overly excessive and costly accuracy in either space. The UQ method takes advantage of an active linear subspace to reduce the dimensionality of the stochastic space while retaining relevant interaction terms and anisotropy. Driven by low-cost error estimates, a particle-swarm optimization method explores the stochastic space and drives adaptation that results in an efficient stochastic approximation. The UQ method is compared to to two modern methods for three test functions in a 100-dimensional space. The current method is shown to result in up to three orders of magnitude lower error and up to two orders of magnitude fewer samples. Next, a simulation is developed using the discontinuous Galerkin method which is well-suited to adaptivity. A transient
Provenance Response to Rifting and Separation at the Jan Mayen Microcontinent Margin

The Eocene-Miocene successions recovered at DSDP sites on the Jan Mayen Ridge (NE Atlantic) and on the adjacent East Greenland margin provide a sedimentary record of the rifting and separation of the Jan Mayen Microcontinent from East Greenland. A combination of palynology, conventional heavy mineral analysis, single-grain major and trace element geochemistry and radiometric dating of amphibole and zircon has revealed a major change in sediment provenance took place at the Early/Late Oligocene boundary corresponding to a prominent seismic reflector termed JA. During the Eocene and Early Oligocene, lateral variations in provenance character indicate multiple, small-scale transport systems. Site 349 and Kap Brewster were predominantly supplied from magmatic sources (Kap Brewster having a stronger subalkaline signature compared with Site 349), whereas Site 346 received almost exclusively metasedimentary detritus. By contrast, Late Oligocene provenance characteristics are closely comparable at the two Jan Mayen sites, the most distinctive feature being the abundance of reworked Carboniferous, Jurassic, Cretaceous and Eocene palynomorphs. The Site 349 succession documents an evolution in the nature of the magmatic provenance component. Supply from evolved alkaline magmatic rocks, such as syenites, was important in the Middle Eocene and lower part of the Early Oligocene, but was superseded in the later Early Oligocene by mafic magmatic sources. In the latest Early Oligocene, the presence of evolved clinopyroxenes provides evidence for prolonged magmatic fractionation. Initial low degrees of partial melting led to generation of alkaline (syenitic) magmas. The extent of partial melting increased during the Early Oligocene, generating basaltic rocks with both subalkaline and alkaline compositions. Towards the end of the Early Oligocene, the amount of partial melting and magma supply rates decreased. In the Late Oligocene, there is no evidence for contemporaneous igneous activity, with scarce magmatic indicator minerals. The provenance change suggests that the hiatus at the Early/Late Oligocene boundary represents the initiation of the proto-Kolbeinsey Ridge and separation of the Jan Mayen Microcontinent from East Greenland.
The Gelatinase Inhibitor ACT-03 Reduces Gliosis in the Rapid Kindling Rat Model of Epilepsy, and Attenuates Inflammation and Loss of Barrier Integrity In Vitro

Matrix metalloproteinases (MMPs) are endopeptidases responsible for the cleavage of intra- and extracellular proteins. Several brain MMPs have been implicated in neurological disorders including epilepsy. We recently showed that the novel gelatinase inhibitor ACT-03 has disease-modifying effects in models of epilepsy. Here, we studied its effects on neuroinflammation and blood–brain barrier (BBB) integrity. Using the rapid kindling rat model of epilepsy, we examined whether ACT-03 affected astro- and microgliosis in the brain using immunohistochemistry. Cellular and molecular alterations were further studied in vitro using human fetal astrocyte and brain endothelial cell (hCMEC/D3) cultures, with a focus on neuroinflammatory markers as well as on barrier permeability using an endothelial and astrocyte co-culture model. We observed less astro- and microgliosis in the brains of kindled animals treated with ACT-03 compared to control vehicle-treated animals. In vitro, ACT-03 treatment attenuated stimulation-induced mRNA expression of several pro-inflammatory factors in human fetal astrocytes and brain endothelial cells, as well as a loss of barrier integrity in endothelial and astrocyte co-cultures. Since ACT-03 has disease-modifying effects in epilepsy models, possibly via limiting gliosis, inflammation, and barrier integrity loss, it is of interest to further evaluate its effects in a clinical trial.
Human-Wild Animals Conflict in and around Amba Forest, Ezha District, Gurage Zone, Southern Ethiopia

The conflicts between humans and wild animals with the same resources are common but seldom reported in Ethiopia. This study was carried out to assess the causes, impacts, and mitigation strategies of the local communities with human-wild animal conflict (HWC) in and around Amba forest of Ezha District, Gurage Zone, Ethiopia: implications for wildlife conservation. Cross-sectional study design was applied, and data were collected from November 2019 to July 2020 through a semistructured questionnaire, focus group discussion (FGD), and field observation. A total of 53 respondents were randomly selected. The data were analyzed using SPSS software, and the results were presented using tables, graphs, charts, and text. The study result revealed that human-wild animal conflict exists, and it was seriously occurring at various places, time, and seasons. Papio anubis, Potamochoerus larvatus, Cercopithecus aethiops, Hystrix cristata, and Crocuta crocuta were the main conflicting wild animals, respectively. Abundance of wild animals, presence of forest, crop raiding, expansion of agriculture, and livestock predation were the main causes of conflict in the study area. There was a statistically significant relation between conflict and the cause of conflict (χ2(5) = 17.075, p = 0.004 ). Psychological and economic impacts were the main impacts encountered. Most of the respondents (86.8%) had applied conflict mitigation strategies, but it was ineffective, although the trend of conflict was increasing. Many of the respondents (41.5%) had a negative attitude toward wild animals, but 58.5% encouraged wild animals’ conservation. HWC had increasing trends of conflict, and thus, a negative attitude was developed by the communities on wild animal coexistence and conservation. Therefore, awareness creation, training, and promoting coexistence mechanisms between humans and wild animals are necessary in the study area.
Psychometric Testing of the Persian Version of the Conditions of Work Effectiveness Questionnaire-II (CWEQ-II-PV)

BACKGROUND: Structural empowerment (SE) is an effective method of advancing work environments and has previously been widely discussed in Western countries. Due to the lack of culturally and academically accepted scales in Iran for measuring SE, localization of a foreign scale in this field is necessary. OBJECTIVES: This study aimed at investigating the validity and reliability of the Persian Version of the Conditions of Work Effectiveness Questionnaire-II (CWEQ-II-PV) among Iranian nurses. METHODS: The present cross-sectional methodological research was conducted during 2017–2018. Participants were 230 nurses working in four teaching hospitals affiliated to Kashan University of Medical Sciences in Kashan, Iran, who were selected using quota sampling. A standard forward–backward translation procedure according to Wild et al. (2005) was used to translate the English Version of the CWEQ-II to Persian. The psychometric evaluation processes were achieved by face, content, and construct validity (confirmatory factor analysis [CFA]). Reliability was examined using test–retest and Cronbach's alpha for internal consistency reliability. RESULTS: The CWEQ-II-PV showed good content validity (the mean content validity scores for relevancy, clarity, and simplicity were 94%, 96%, and 94%, respectively). In the CFA, the original six-factor version with 19 items was confirmed. The original model was presented and incorporated in the CFA, indicating an acceptable fit for the model (root mean square error of approximation = 0.06, comparative fit index = 0.92, goodness of fit index (GFI) = 0.94, and adjusted GFI = 0.91). Cronbach's alpha coefficient for the total scale was 0.84 and for each component ranged from 0.71 to 0.87, indicating good internal consistency, and the test–retest Spearman and intraclass correlation coefficients were 0.93 and 0.87, respectively, showing good test–retest reliability. CONCLUSIONS: Evidence was found to support the reliability and validity of the CWEQ-II-PV scale that measures the quality of the work environment for nurses from a SE perspective.
INVESTIGATION OF THE PROCESS OF ENERGY TRANSFER FROM AN INTERMITTENT JET TO SECONDARY FLUID IN AN EJECTOR-TYPE THRUST AUGMENTER

Abstract : The current phase of the thrust augmentation investigation is reported. Showing a correlation between analysis and test data. Improved experimental techniques were used, including color schlieren streak photography and high speed pressure transducer records. Two analyses have been made, each being a graphical-numerical solutithe non-linear partial differential equations of unsteady one-dimensional gas dynamics. The first is the detailed ''in the small'' use of wave diagrams in the physical (x-t) plane in conjection with the classical numerical method of calculations called Method of Characteristics. The second is the newer ''Vector-Polar Method'' which deals with wave and fluid velocity interactions only in the large. The latter is based on a combination of two plots, (1) the (x-t) physical plane and (2) the vector plot of the natural logarithm of pressure ratios across each major compression fan, shock wave, and rarefraction fan versus the change of particle velocity ratio. The device for converting steady flow to intermittent jets has been used in conjunction with color schlieren and high-speed pressure instrumentation and is shown to be an excellent research tool for creating intermittent jets with a range of velocities and wave forms not possible heretofore. This device also appears to have potential as a high performance thrust augmenter for turbojet lift engines.
Analysis of Financial Performance of Conventional and Islamic BUMN Banks Before and During the Covid-19 Pandemic

Almost all economic sectors in the world have been affected by the Covid-19 pandemic, including the national banking industry in Indonesia. This study purpose was to examine the differences in the financial performance of State-Owned Conventional Banks and State-Owned Sharia Banks before and during the Covid-19 pandemic. The assessment of financial performance uses the CAR ratio, NPL ratio (for conventional banking) and NPF ratio (for Sharia banking). The database used is the 2019 and 2020 banking financial reports in the website of Financial Services Authority and the websites of each bank. Based on purposive sampling technique, the selected banks that meet the criteria are BRI bank, Mandiri bank, BNI bank, BTN bank, BRI Syariah bank, BNI Syariah bank, and Syariah Mandiri bank. The results of paired sample t test analysis showed that Ho was accepted, meaning that there was no difference in the performance of Capital Adequacy Ratio at SOCB before and during the Covid-19 Pandemic. The analysis of paired sample t test for SOSB, which is seen from the CAR, shows that there is no difference in the performance of CAR ratio of SOSB before and during the Covid-19 pandemic. This indicates that both SOCB and SOSB can maintain their capital adequacy ratio. Conversely, the performance of SOCB credit financing (NPL), using the paired sample t test, shows that there is a difference in the NPL performance of SOCB before and during the Covid-19 pandemic. Meanwhile, contrary to the NPL results of SOCB, the NPF of SOSB shows no difference, both before the Covid-19 pandemic and during the Covid-19 pandemic. This indicates that the performance of SOSB credit financing (NPF) is relatively safe compared to the performance of SOCB (NPL) credit financing.
Complete Revascularization and One-Year Survival with Good Neurological Outcome in Patients Resuscitated from an Out-of-Hospital Cardiac Arrest

Background. The survival benefit of complete versus infarct-related artery (IRA)-only revascularization during the index hospitalization in patients resuscitated from an out-of-hospital cardiac arrest (OHCA) with multivessel disease is unknown. Methods. We considered all the OHCA patients prospectively enrolled in the Lombardia Cardiac Arrest Registry (Lombardia CARe) from 1 January 2015 to 1 May 2021 who underwent coronary angiography (CAG) at the Fondazione IRCCS Policlinico San Matteo (Pavia). Patients’ prehospital, angiographical and survival data were reviewed. Results. Out of 239 patients, 119 had a multivessel coronary disease: 69% received IRA-only revascularization, and 31% received a complete revascularization: 8 during the first procedure and 29 in a staged-procedure after a median time of 5 days [IQR 2.5–10.3]. The complete revascularization group showed significantly higher one-year survival with good neurological outcome than the IRA-only group (83.3% vs. 30.4%, p < 0.001). After correcting for cardiac arrest duration, shockable presenting rhythm, peak of Troponin-I, creatinine on admission and the need for circulatory support, complete revascularization was independently associated with the probability of death and poor neurological outcome [HR 0.3 (95%CI 0.1–0.8), p = 0.02]. Conclusions. This observation study shows that complete myocardial revascularization during the index hospitalization improves one-year survival with good neurological outcome in patients resuscitated from an OHCA with multivessel coronary disease.
Cu depletion at the CuInSe2 surface

The chemical composition of the (112)B surface of epitaxial CuInSe2 thin films is investigated by angle resolved x-ray photoelectron spectroscopy. Results show that a severe Cu depletion exists in the top 1–2 atomic layers. No bulk second phase is found at the surface. The source of this depletion and its relation to the Cd doping at the CdS/CuInSe2 interface are discussed.
Is Textual Information Contained in Financial Documents Informative? Assessing Transparency using Textual Analysis

Abstract Despite abundant research on government transparency, there have been a limited number of empirical studies that assess government transparency by directly examining the content of information. Using 50 U.S. states from 2002 to 2016, this study examines the relationship between the tone of textual parts in financial documents and financial condition to understand whether governments provide important information about their operations in an easily understandable format (i.e., textual format). Conducting machine-aided textual analysis on Annual Comprehensive Financial Reports (ACFRs), this study finds that state governments ensure effective transparency by making what textual information indicates consistent with objective measures of financial condition. As financial conditions change, states adjust the tone of textual parts accordingly, which can be more easily understood by laypeople than complicated numbers in financial statements. The findings also suggest that declining financial conditions do not lead states to increase the use of uncertainty words to mask negative financial information. This study enhances our understanding of the meaning of transparency, and thereby contributes to the development of accountable public management practices and good governance.
A New Technique for the Calculation of Effective Mesonic Potential at Finite Temperature in the Logarithmic Quark-Sigma Model

The logarithmic sigma model describes the interactions between quarks via sigma and pion exchanges. The effective mesonic potential is extended to the finite temperature and it is numerically calculated using n-midpoint rule. Meson properties such as the phase transition, the sigma and pion masses, and the critical point temperature are examined as functions of temperature. The obtained results are compared with other approaches. We conclude that the calculated effective potential is successfully to predict the meson properties
Comprehensive Evaluation of Deep Coal Miners’ Unsafe Behavior Based on HFACS-CM-SEM-SD

The unsafe behavior of miners seriously affects the safety of deep mining. A comprehensive evaluation of miners’ unsafe behavior in deep coal mines can prevent coal mine accidents. This study combines HFACS-CM, SEM, and SD models to evaluate miners’ unsafe behaviors in deep coal mining. First, the HFACS-CM model identifies the risk factors affecting miners’ unsafe behavior in deep coal mines. Second, SEM was used to analyze the interaction between risk factors and miners’ unsafe behavior. Finally, the SD model was used to simulate the sensitivity of each risk factor to miners’ unsafe behavior to explore the best prevention and control strategies for unsafe behavior. The results showed that (1) environmental factors, organizational influence, unsafe supervision, and unsafe state of miners are the four main risk factors affecting the unsafe behavior of miners in deep coal mines. Among them, the unsafe state of miners is the most critical risk factor. (2) Environmental factors, organizational influence, unsafe supervision, and the unsafe state of miners have both direct and indirect impacts on unsafe behaviors, and their immediate effects are far more significant than their indirect influence. (3) Environmental factors, organizational influence, and unsafe supervision positively impact miners’ unsafe behavior through the mediating effect of miners’ unsafe states. (4) Mental state, physiological state, business abilities, resource management, and organizational climate were the top five risk factors affecting miners’ unsafe behaviors. Taking measures to improve the adverse environmental factors, strengthening the organization’s supervision and management, and improving the unsafe state of miners can effectively reduce the risk of miners’ unsafe behavior in deep coal mines. This study provides a new idea and method for preventing and controlling the unsafe behavior of miners in deep coal mines.
Tourist satisfaction with online car-hailing: evidence from Hangzhou City, China

ABSTRACT This study develops a theoretical framework based on the American Customer Satisfaction Index (ACSI) model to examine the formation and determinants of tourists’ satisfaction with online car-hailing. Self-administered questionnaires were used to survey 486 tourists in Hangzhou, China. The results show that the perceived quality and value of online car-hailing have a significant positive impact on tourist satisfaction. Perceived value partially mediated the relationship between perceived quality and tourist satisfaction. Further, perceived quality and perceived value played a chain mediating effect on the relationship between tourist expectation and tourist satisfaction. In addition, this study verified that satisfaction negatively impacts complaints and positively impacts loyalty, and complaints negatively impact loyalty. Management implications and recommendations for future research are also discussed.
Student Errors in Mathematics Word Problem: What Can Be Learned?

This study aims to understand better student errors in solving mathematics word problems. A Word problem is a problem that has a story or arrangement based on sentences. The qualitative research approach was used. The data were collected by giving tests and interviewing two male high achievers senior high school students in mathematics. The student error analysis adopted the Newman error analysis system. The source triangulation was used to ensure the data validity. Based on the collecting data and data analysis, the decoding/reading error happened caused by students' common understanding or unfamiliarity of the mathematical terms used in the problem. The subjects showed inconsistency in interpreting problem sentences and misused mathematical symbols. Furthermore, the subject encountered difficulties with the arithmetic process, especially fractions and their operation. This research identified students' difficulties in solving problem mathematics word problems. Moreover, this research provides evidence that encourages further research on mathematical literacy, mathematical communication skills, students' arithmetic skills, and the evaluation process of the problem-solving activity.
The ionospheric signature of flux transfer events

The effects at ionospheric heights which take place when transient reconnection events (i.e., Flux Tranfer Events (FTEs)) occur at the dayside magnetopause are considered. The nature of the FTE related ionospheric flows, the associated current systems, and the plasma precipitation, are discussed. In particular, the nature of the time dependent cusp precipitation which occurs on this case is outlined and expectations are compared with those based on steady magnetopause reconnection.