Miracle-dz/UniFAR-FTUs huggingface dataset:
A New Probe Reaction for Studying the Hydrogen Spillover Phenomenon

Abstract It was found by FTIR measurement that pyridine strongly adsorbed on acid sites of ZSM-5 was hydrogenated over Pt/H-ZSM-5 (0.5 wt%) and a Pt-hybrid catalyst (a physically mixed catalyst with a weight ratio of Pt/SiO 2 (2.5 wt%)/H-ZSM-5=1:4) to adsorbed piperidine in the presence of gaseous hydrogen at around 473 K, whereas no such phenomena were observed on either H-ZSM-5 or Pt/SiO 2 . The phenomenon revealed the occurrence of hydrogen spillover from Pt sites to zeolite acid sites (Bronsted and Lewis). A quantitative description of this reaction was attained by calculating and measuring the amount of zeolite acid on the basis of pyridine chemisorption and hydrogen consumption. In connection with this finding, the dehydrogenation of adsorbed piperidine in correlation with reverse hydrogen spillover was also observed on Pt/H-ZSM-5 catalyst in the temperature range from 623 to 723 K.
How to Do CSR with Dialogic Meeting Talk: A Conceptual Framework for Managing Change in Cross-Sector Social Partnerships

Within the theoretical framework of Cross-Sector Social Partnerships [CSSPs], strategic communication and dialogue and by use of an example drawn from a case study of a CSSP, this article argues that Corporate Social Responsibility [CSR] initiatives are best developed in partnership-wide meetings involving relevant stakeholders. Importantly, it proposes a framework for analysis. Following a theoretical discussion of the interconnectedness of CSSPs, strategic communication and dialogue, the article outlines a framework for analysis. It delineates the potential of the framework through an analysis of a partnership-wide dialogue conducted in a local CSSP at a seminar/meeting dealing with the creation of common understanding for a social inclusion project among internal and external stakeholders. The analytical findings support the main argument and the conceptual endeavor by illustrating how common understanding of the need for social inclusion is constructed through a partnership-wide meeting organized as dialogue.
AN ANALYSIS OF DEICTIC EXPRESSION IN THE ARTICLE SELECTED FROM DETIKNEWS ABOUT KRAKATOA’S MOUNT DISASTER 2018

This research reports the findings of an investment study deixis in an article selected from DetikNews. The aims of this research was to determine the deictic expression contained in the selected article. The methodology used by the researchers is descriptive qualitative and uses content analysis to analyze deictic expressions in the article. These findings of research indicate are three types of deictic expressions found in articles selected from DetikNews, there are personal deixsis, spatial deixis and temporal deixis. Based on the results of the research, it can be found that knowing the deictic expression in the selected article, this will help all those who read the article, will have a better understanding and the points of the article will reach the audience. Keywords : Deixis , DetikNews
Growth and optical properties of NaY(WO4)2:Eu crystals

NaY 0.99 Eu 0.01 (WO 4 ) 2 crystals were grown along and directions. Single crystals with high quality can be obtained when they were grown along direction from a melt with a small deviation from stoichiometric composition. Eu ions exist in two valences in the as-grown crystals, in one valence after annealing only. The fluorescence spectrum shows the Stark splitting of energy levels of Eu ions is in accordance with the site symmetry of S 4 .
MUSLIM AMERICAN DOUBLE CONSCIOUSNESS

Abstract This article engages in a theoretical discussion and application of Du Boisian double consciousness to understand the formation of the Muslim American self. Du Boisian double consciousness, and its three elements (the Veil, Twoness, and Second Sight) are used to understand phenomenological processes of Muslim American self-formation as being situated within and conditioned by structural contexts of racialization. By drawing on critical scholarship that highlights the operation of the Muslim racial project in contemporary U.S. contexts, I show how double consciousness emerges through the Othering of Muslim Americans at the macro, meso, and micro levels of society, which then defines them as outside of the U.S. national imaginary, and denies them their equal civic status as citizens of the state. By utilizing double consciousness to understand the Muslim American self as it is embedded in racialized U.S. contexts, this article fills a crucial gap in the literature by theoretically expanding on racialized processes of Muslim American identity formation in the racialized contexts of the United States.
The Impact of Using Code Alternation in Teaching Life Science to English First Additional Language learners in South African Schools

The study aimed at investigating the extent to which English is used as a medium of teaching and learning Life Sciences in a South African rural high school. As the government has given recognition to the country’s multilingual, multi-ethnic and multicultural composition, School Governing Bodies are mandated to choose any of the eleven official languages as a medium of instruction (RSA, Act 108 of 1996), but the power of deciding which language to use as a medium of instruction has been taken by teachers to shield their own shortcomings. To be able to explore and understand the prevailing situation, the researchers employed a qualitative design which translated into researchers observing classes, evaluating learners’ written texts and interviewing the teachers as methods of collecting data. The findings are that: first, learners’ and teachers’ proficiency levels in English are very low, as such, the English language is not a pivot of learning and teaching in the South African education system. This emanates from the fact that although in theory the majority of the South African schools have adopted English as a medium of instruction, in practice, this is far from the truth as teachers employ code alternation in the form of code switching, code mixing and sentence translation as viable means of scaffolding the learning of content subjects.
A simplified density matrix minimization for linear scaling self-consistent field theory

A simplified version of the Li, Nunes and Vanderbilt [Phys. Rev. B 47, 10891 (1993)] and Daw [Phys. Rev. B 47, 10895 (1993)] density matrix minimization is introduced that requires four fewer matrix multiplies per minimization step relative to previous formulations. The simplified method also exhibits superior convergence properties, such that the bulk of the work may be shifted to the quadratically convergent McWeeny purification, which brings the density matrix to idempotency. Both orthogonal and nonorthogonal versions are derived. The AINV algorithm of Benzi, Meyer, and Tůma [SIAM J. Sci. Comp. 17, 1135 (1996)] is introduced to linear scaling electronic structure theory, and found to be essential in transformations between orthogonal and nonorthogonal representations. These methods have been developed with an atom-blocked sparse matrix algebra that achieves sustained megafloating point operations per second rates as high as 50% of theoretical, and implemented in the MondoSCF suite of linear scaling SCF.
Towards Automatic Modeling of Volleyball Players’ Behavior for Analysis, Feedback, and Hybrid Training

Automatic tagging of video recordings of sports matches and training sessions can be helpful to coaches and players and provide access to structured data at a scale that would be unfeasible if one were to rely on manual tagging. Recognition of different actions forms an essential part of sports video tagging. In this paper, the authors employ machine learning techniques to automatically recognize specific types of volleyball actions (i.e., underhand serve, overhead pass, serve, forearm pass, one hand pass, smash, and block which are manually annotated) during matches and training sessions (uncontrolled, in the wild data) based on motion data captured by inertial measurement unit sensors strapped on the wrists of eight female volleyball players. Analysis of the results suggests that all sensors in the inertial measurement unit (i.e., magnetometer, accelerometer, barometer, and gyroscope) contribute unique information in the classification of volleyball actions types. The authors demonstrate that while the accelerometer feature set provides better results than other sensors, overall (i.e., gyroscope, magnetometer, and barometer) feature fusion of the accelerometer, magnetometer, and gyroscope provides the bests results (unweighted average recall = 67.87%, unweighted average precision = 68.68%, and κ = .727), well above the chance level of 14.28%. Interestingly, it is also demonstrated that the dominant hand (unweighted average recall = 61.45%, unweighted average precision = 65.41%, and κ = .652) provides better results than the nondominant (unweighted average recall = 45.56%, unweighted average precision = 55.45, and κ = .553) hand. Apart from machine learning models, this paper also discusses a modular architecture for a system to automatically supplement video recording by detecting events of interests in volleyball matches and training sessions and to provide tailored and interactive multimodal feedback by utilizing an HTML5/JavaScript application. A proof of concept prototype developed based on this architecture is also described.
Intercalating graphene with clusters of Fe3O4 nanocrystals for electrochemical supercapacitors

A hierarchical nanostructure consisting of graphene sheets intercalated by clusters of Fe3O4 nanocystals is developed for high-performance supercapacitor electrode. Here we show that the negatively charged graphene oxide (GO) and positively charged Fe3O4 clusters enable a strong electrostatic interaction, generating a hierarchical 3D nanostructure, which gives rise to the intercalated composites through a rational hydrothermal process. The electrocapacitive behavior of the resultant composites is systematically investigated by cyclic voltammeter and galvanostatic charge-discharge techniques, where a positive synergistic effect between graphene and Fe3O4 clusters is identified. A maximum specific capacitance of 169 F g−1 is achieved in the Fe3O4 clusters decorated with effectively reduced graphene oxide (Fe3O4-rGO-12h), which is much higher than those of rGO (101 F g−1) and Fe3O4 (68 F g−1) at the current density of 1 Ag−1. Moreover, this intercalated hierarchical nanostructure demonstrates a good capacitance retention, retaining over 88% of the initial capacity after 1000 cycles.
Disability and functioning in primary and secondary hip osteoarthritis in Benin

Background In Africa, primary hip osteoarthritis seems to be less frequent than in Europe. Sickle cell disease is responsible for aseptic osteonecrosis of the femoral head associated with secondary hip osteoarthritis. Very little evidence is available on the influence of aetiology (primary and secondary) and radiographic status on pain and disability in a Beninese population with hip osteoarthritis. Objectives The aim of this study was to compare the impacts of aetiology and radiographic status on pain, disability and quality of life in a Beninese population with hip osteoarthritis. Method This was a descriptive cross-sectional study, including participants recruited in the Clinic of Physical Medicine and Rehabilitation at the National Teaching Hospital in Cotonou. Assessment was based on the International Classification of Functioning, Disability and Health model. The main outcomes were severity of osteoarthritis, pain, range of motion, muscle strength, gait speed and quality of life. Statistical comparisons between the aetiologies were performed using a t-test or rank sum test. One-way analysis of variance was used to test the effect of radiographic status. Results Forty-nine participants (26 women and 23 men; mean age [standard deviation] 40.5 [17.9] years) were recruited. According to the aetiology (59.2% and 40.8% of primary and secondary osteoarthritis, respectively), there were no significant differences for any of the outcomes. Grades I, II, III and IV osteoarthritis were observed in 22.4%, 14.3%, 26.5% and 36.7% of the participants, respectively. Participants with grade IV osteoarthritis were more affected than those with grades I, II and III based on the Kellgren and Lawrence classification. Conclusion Aetiology did not influence pain, gait speed or quality of life. Participants with grade IV osteoarthritis had more pain, were more limited in walking and had a more impaired quality of life.
A REVIEW ON VARIOUS SEGMENTATION TECHNIQUES IN IMAGE PROCESSSING

---Due to the advancement of computer technology image-processing techniques have become increasingly important in a wide variety of applications. Image segmentation plays a important role in image processing. Image segmentation refers to partition of an image into different regions that are similar and different in some characteristics like color, intensity or texture. Different algorithms and techniques have been developed for image segmentation. This paper investigates and compiles some of the technologies used for image segmentation. The various segmentation techniques like Edge Detection, Threshold, Region based, Feature Based Clustering and Neural Network Image Segmentation were discussed in this paper.
Production performance and survivability of six dual-purpose breeds of chicken under smallholder farmers' management practices in Nigeria

Abstract Chickens kept under free-range, backyard or semi-intensive systems in the developing countries have more diverse use and benefits to rural households. Their use varies from region to region and from community to community within a region. The study investigated growth, laying performance and survivability of six improved dual-purpose breeds in five agroecologies of Nigeria represented by the following states: Kebbi (Sudan savanna/northern Guinea savanna); Kwara (northern Guinea savanna/southern Guinea savanna); Nasarawa (southern Guinea savanna/derived savanna); Imo (lowland rainforest/swamp); and Rivers (freshwater swamp/mangrove swamp). On-farm data were obtained from 2100 smallholder poultry farmers that received an average of 30 birds (mixed sexes) of any one of the following dual-purpose breeds (Fulani, FUNAAB Alpha, Kuroiler, Noiler, Sasso and Shika-Brown) randomly allocated to them. The farmers used the backyard, scavenging system of management. Body weight and mortality records for cocks were taken for 18 weeks, while body weight, mortality, egg production and egg weight data were collected for hens up to 72 weeks. Compared with the local cocks (680 g), Kuroiler (1391 g), Sasso (1398 g) and Noiler (1461 g) had over 200 % body weight at 18 weeks. Hen day egg production (HDEP) was higher in Shika-Brown (45.9 %), FUNAAB Alpha (45.8 %) and Kuroiler (45.7 %) compared with the other breeds. Fulani, FUNAAB Alpha and Shika-Brown had higher survivabilities (p<0.05) than Noiler, Sasso and Kuroiler. Ranking of the breeds for growth, laying performance and survivability was as follows: Shika-Brown/Sasso > FUNAAB Alpha/Noiler > Kuroiler > Fulani. The performance of the breeds was significantly (p<0.05) influenced by the agroecologies. The cock body weights for Fulani (1121.1 g), FUNAAB Alpha (1502.4 g) and Noiler (1459.2 g) were highest in Kebbi, while for Kuroiler (1561.0 g), Sasso (1695.9 g) and Shika-Brown (1131.6 g) cock body weights were highest in Imo. Across the states, Imo had the highest HDEP (62.8 %). Overall, the lowland rainforest/ freshwater swamp agroecologies supported the highest production performance of the breeds.
ANALYSES OF WATER BALANCE AND ANNUAL, SEASONAL AND MONTHLY PLUVIOMETRIC VARIABILITY IN PIONEER NORTHERN PARANÁ STATE MESOREGION, BRAZIL

The rainfall variability has a key relevance on human activities. The frequency of extreme events, such as droughts and intense rains, results in severe impacts on crops, urban activities, water resources, health and the environment on a local or regional scale. The estimation of the frequency, impacts and severity of these events is essential for planning human activities. The purpose of this work was to analyze the rainfall variability and the water balance in the Northern Parana state Mesoregion (PNPM) in the annual, seasonal and monthly time scales. For this, we used the annual, seasonal, monthly and daily time scales with the time from 1976 to 2018. For the better understanding, we used analysis using thematic maps with regionalization through interpolations and isohyets, box plot and dendogram. A large regional discrepancy in precipitation was identified in the analyzed mesoregion. In all the time scales analyzed in the region, there were alarming variations, which can bring perspectives for regional planning. We verified the Northwestern portion of the region, near to the municipality of Leopolis, had the lowest rainfall and the worst scenarios evaluated in the water balance, while the upper portion, in the Southwest, near Sapopema, presented more rain and less risk of drought. The average climatological water balance in the region showed a low deficit in the month of August, however when testing scenarios of dry years, the entire region showed water deficiency throughout the year.
Accumulation of Mn in Leaves of Rosmarinus officinalis Cultivated in Substrates of Pine Bark

Rosmarinus officinalis is an important aromatic shrub cultivated for medicinal, culinary, and ornamental uses. To assess growth, the contents of trace metals cadmium (Cd), copper (Cu), iron (Fe), manganese (Mn), lead (Pb), and zinc (Zn) and macronutrients calcium (Ca), magnesium (Mg), potassium (K), nitrogen (N), and phosphorus (P) were measured in these plants cultivated on two substrates: pine bark (PB, pH 4.0, 80.5% organic matter) and pruning wastes–biosolids (BS, pH 6.9, 47.5% organic matter). These plants, initially of 3.5 ± 0.5 g dry weight and 31.1 ± 6.9 cm, were maintained under greenhouse conditions for 7 months. Nutrient solution samples were taken from each substrate in situ by rhizon probes, indicating that the concentrations of soluble Mn and Zn in PB were significantly greater than in the nutritive solution BS. At the end of the assay, the dry weight of leaves and height was significantly greater in plants cultivated in BS (40.0 ± 2.2 g and 75.9 ± 14.3 cm) than in PB (27.5 ± 4.0 g and 62.4 ± 10.2 cm). Plants cultivated in PB showed slight chlorosis, attributed to the high concentration of Mn in leaves (106.6 ± 7.8 mg kg−1), which was much greater than in plants cultivated in BS (8.2 ± 0.9 mg kg−1). The concentration of toxic metals Cd and Pb in plants cultivated on both substrates did not exceed the recommended levels for consumption of the leaves as condiment. If R. officinalis is cultivated on the substrate of pine bark to acid pH for food or medicinal use, the accumulation of Mn must be considered.
Decomposition pressures and enthalpies of formation of some transition metal diarsenides and diselenides

The phase relations for the systems Pt/As, Os/As, Os/Se, and Ru/Se have been examined in the range 850–1 250 °K. Using the torsion effusion method, the decomposition pressures of PtAs2, OsAs2, OsSe2, and RuSe2 have been measured as a function of temperature. The apparatus and procedures were verified by measuring the vapor pressure of liquid silver. Equilibrium pressures were obtained for PtAs2 and RuSe2. OsAs2 exhibited an orifice area dependent nonequilibrium behavior and OsSe2 exhibited a time dependent nonequilibrium behavior. Equilibrium pressures were estimated in these latter two cases. Total equilibrium decomposition pressures (Pt), i.e. the pressure of arsenic or selenium vapors in equilibrium with each phase, are best described by the equations: Literature data on the equilibria between the various molecular species in selenium and arsenic vapor indicate that at these pressures and temperatures the vapor in equilibrium with the selenides is essentially pure Se2, but the vapor over the arsenides .
A Time-Series Analysis of Contextual-Level Effects on Hate Crime in The Netherlands

Abstract:Nowadays, registered hate crimes are on the rise in many Western societies. What explains temporal variation in the incidence of hate crimes? Combining insights from the grievance model and the opportunity model, we study the role of three types of contextual factors: security (terrorism), media (news about terrorism and immigration), and political factors (speech by anti-immigration actors, hate speech prosecution, and high-profile anti-immigration victories). We apply time-series analysis to our original dataset of registered hate crimes in the Netherlands, 2015–2017 (N = 7,219). Findings indicate that terrorist attacks, (both print and online) news on refugees, immigration, and terrorism boost nonviolent hate crime. Similarly, news of the hate speech prosecution of Freedom Party leader Geert Wilders increases nonviolent crime as well. Tentative evidence points to a contagion effect of speech by anti-immigration actors. With regard to violent hate crime, only terrorist attacks had an effect. This effect was modest and only found in one of our models. Hence, the grievance and the opportunities model each partially explain nonviolent hate crime, although the security and media context seem most influential. Our findings help to identify the contextual factors contributing to a climate for hate and suggest that perceived threats play a key role.
Apakah compatibility dan reputasi aplikasi menjadi penentu perilaku konsumen untuk menggunakan pembayaran seluler

Penelitian ini menggabungkan Innovation Diffusion Theory (IDT) dan Trust Building Model Theory , variabel compatibility atau kesesuaian dan reputation atau reputasi digunakan untuk mengukur niat dan aktual penggunaan pembayaran seluler yang ada di Indonesia. Hasil uji deskriptif menyatakan bahwa OVO, Go-Pay dan Dana menjadi tiga besar pilihan aplikasi para responden yang diteliti. Jenis penelitian ini menggunakan jenis penelitian kuantitatif. Sample yang digunakan adalah sebanyak 143 responden yang didapatkan dari berbagai kalangan. Data dikumpulkan dengan menggunakan teknik purposive sampling dan dengan instrumen angket dan pengukuran menggunakan skala semantic deferensial . Pendekatan analisis jalur yang diolah dengan persamaan model struktural menggunakan Lisrel 8.7. Hasil penelitian menunjukkan bahwa compatibility suatu aplikasi berpengaruh signifikan terhadap niat dan aktual penggunaan pembayaran seluler sedangkan reputation dari aplikasi yang digunakan tidak berpengaruh secara signifikan terhadap niat dan aktual penggunaan pembayaran seluler. Penelitian ini menyimpulkan bahwa aplikasi yang sesuai dan cocok dengan kebutuhan konsumen akan selalu menjadi produk yang dipilih.