Miracle-dz/UniFAR-FTUs huggingface dataset:
Optical, XPS and XRD Studies of Semiconducting Copper Sulfide Layers on a Polyamide Film

Copper sulfide layers were formed on polyamide PA 6 surface using the sorption-diffusion method. Polymer samples were immersed for 4 and 5 h in 0.15 mol⋅ dm−3 K2S5O6 solutions and acidified with HCl (0.1 mol⋅ dm−3) at 20∘C. After washing and drying, the samples were treated with Cu(I) salt solution. The samples were studied by UV/VIS, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) methods. All methods confirmed that on the surface of the polyamide film a layer of copper sulfide was formed. The copper sulfide layers are indirect band-gap semiconductors. The values of 𝐸bg are 1.25 and 1.3 eV for 4 h and 5 h sulfured PA 6 respectively. Copper XPS spectra analyses showed Cu(I) bonds only in deeper layers of the formed film, while in sulfur XPS S 2p spectra dominating sulfide bonds were found after cleaning the surface with Ar
Penta, R. and Gerisch, A. (2017) The asymptotic homogenization elasticity tensor properties for composites with material discontinuities.Continuum

The classical asymptotic homogenization approach for linear elastic composites with discontinuous material properties is considered as a starting point. The sharp length scale separation between the fine periodic structure and the whole material formally leads to anisotropic elastic-type balance equations on the coarse scale, where the arising fourth rank operator is to be computed solving single periodic cell problems on the fine scale. After revisiting the derivation of the problem, which here explicitly points out how the discontinuity in the individual constituents’ elastic coefficients translates into stress jump interface conditions for the cell problems, we prove that the gradient of the cell problem solution is minor symmetric and that its cell average is zero. This property holds for perfect interfaces only (i.e. when the elastic displacement is continuous across the composite’s interface), and can be used to assess the accuracy of the computed numerical solutions. These facts are further exploited, together with the individual constituents’ elastic coefficients and the specific form of the cell problems, to prove a theorem that characterizes the fourth rank operator appearing in the coarse scale elastictype balance equations as a composite material effective elasticity tensor. We both recover known facts, such as minor and major symmetries and positive definiteness, and establish new facts concerning the Voigt and Reuss bounds. The latter are shown for the first time without assuming any equivalence between coarse and fine scale energies (Hill’s condition), which, in contrast to the case of representative volume elements, does not identically hold in the context of asymptotic R. Penta Departamento de Mecanica de los Medios Continuos y T. Estructuras, E.T. S. de caminos, canales y puertos, Universidad Politecnica de Madrid, Calle Profesor Aranguren S/N, 28040, Madrid, Spain. Tel. : +34-913366659 Fax: +34-913366702 E-mail: raimondo.penta@upm.es A. Gerisch AG Numerik und Wissenschaftliches Rechnen Dolivostr. 15, 64293 Darmstadt, Germany. Tel. : +49-61511623173 Fax: +49-61511623164 E-mail: gerisch@mathematik.tu-darmstadt.de 2 Raimondo Penta, Alf Gerisch homogenization. We conclude with instructive three dimensional numerical simulations of a soft elastic matrix with an embedded cubic stiffer inclusion to show the profile of the physically relevant elastic moduli (Young’s and shear moduli) and Poisson’s ratio at increasing (up to 100%) inclusion’s volume fraction, thus providing a proxy for the design of artificial elastic composites.
Cross-cultural differences in adopting mobile augmented reality at cultural heritage tourism sites

Augmented reality (AR) is increasingly used in cultural heritage tourism sites for the enhancement of the tourist experience. However, behavioral intention to adopt AR is dependent on cultural traits, and close investigation is required on cultural differences. To explore these cultural differences and the effect on AR acceptance in cultural heritage tourism sites, this study aims to focus on the aesthetic and hedonic characteristics of AR applications. ,Data were collected in two countries with strong contrasts in Hofstede’s cultural dimensions to explore cultural differences in AR acceptance. In total, 145 questionnaires were collected in Deoksugung Palace, South Korea, and 119 questionnaires were collected in the An Post Museum, Republic of Ireland. Data were analyzed using PLS Graph 3.0. ,The findings confirmed that the aesthetics of AR have a strong influence on perceived enjoyment. Furthermore, this study supported the notion that high power distance, collectivism and high uncertainty avoidance culture such as South Korea’s perceives stronger dependence on social influence and the hedonic characteristics of AR. ,AR innovation and marketing within the hospitality and tourism industry requires an understanding of cultural differences to ensure successful implementation. In addition, tourism and hospitality managers need to ensure that the needs and requirements of different target markets are met. ,This study applied Hofstede’s cultural dimensions to explore the differences between two very distinct countries with regard to AR acceptance. The findings provide important implications for the implementation of tourism AR applications for different countries, especially considering international target markets.
Behaviour of apricot (Prunus armeniaca L.) cultivars in the presence of sharka (plum pox potyvirus): a review

Information concerning the evaluation of apricot resistance to sharka (plum pox potyvirus) has in many cases been published in journals of limited circulation. In an attempt to assess the actual status of this resistance, a global review has been made, including 222 cultivars, 175 of which can be considered as susceptible, 27 as resistant and 20 as cultivars of uncertain classification. Such a doubtful classification could be due to differences in evaluation methods, the isolates used, or to the authenticity of the plant material. The results seem to indicate that the main origin of resistance to sharka could be North American cultivars, although other resistant sources have been found in Central Europe. Prunus armeniacaL. / apricot / plum pox potyvirus / sharka / resistance Résumé – Comportement des cultivars d’abricotier ( Prunus armenicaL.) à la sharka (plum pox potyvirus) : une revue. Les informations concernant l’évaluation du comportement de l’abricotier à la sharka sont fréquemment publiées dans des journaux à faible audience. La présente revue se propose de synthétiser ces informations dispersées : 222 cultivars sont pris en compte, 175 d’entre eux pouvant être considérés comme sensibles, 27 comme résistants et 20 pour lesquels la classification est incertaine. Cette classification douteuse peut être due à des différences dans les méthodes d’évaluation, aux isolats utilisés ou à l’authenticité du matériel végétal. Les résultats semblent indiquer que la principale source de résistance à la sharka aurait pour origine les cultivars nord-américains bien que d’autres sources de résistance ont été trouvées en Europe centrale. Prunus armenicaL. / abricotier / plum pox potyvirus / sharka / résistance Agronomie 20 (2000) 407–422 407 © INRA, EDP Sciences 2000 Communicated by Hervé Thiellement (Geneva, Switzerland) * Correspondence and reprints fdicenta@natura.cebas. csic.es P. Martínez-Gómez et al. 408
Quantification of the morphology of shelly carbonate sands using 3D images

Shelly carbonate sands proliferate in regions of the world where construction of offshore structures is in high demand. These structurally weak sands have high intra-granular voids and complex angular grain shapes. To improve the understanding of the mechanical properties of the material, a detailed morphological quantification is required. This paper presents a three-dimensional characterisation of the morphology of shelly carbonate sands based on analyses of X-ray computed tomography images. Two sands from the Persian Gulf with distinct grading were investigated. An adaptive watershed segmentation technique was developed to identify the individual grains for subsequent grain-scale analysis, which overcomes the challenges posed by the intricate microstructure of these sands. Non-invasive measurements of size, intra-granular void and various shape parameters were carried out, and statistical analyses were conducted, to characterise the grains. The results help to better understand the mechanisms of grain .
On survival growth and some physiological parameters of Oreochromis niloticus as afftected by dietary ascorbic acid supplementation

he present study was carried out to evaluate the effect of adding ascorbic acid to Tilapia fish diets on survival, growth, physiological parameters and total production. O. niloticus at average initial body weight 20.3 +0.9 g and length 13.5 +0.6 cm, were stocked in concrete ponds at a rate of 5 fish/ m 3 , and offered a diet of 5% of body weight, six days weekly , twice daily . The basal diet contained 30% crude protein divided into five tested diets. Ascorbic acid was added to the basal diet at different levels, 0 , 300, 600, 900 and 1200 mg AA /kg diet. The results show that tilapia growth performance indices (FBW, A.DG, SGR, GR and FCR) were increased with increasing ascorbic acid (AA) levels. Diet contained 900mg/kg recorded the best value, compared to the control diet. The best biological indices (hepato., gonado and gastrosomatic indices were recorded from diet (4) compared to the control diet. Survival and production were increased with the increase of ascorbic acid level until 900mg/kg diet which recorded the best results. Similar results were obtained in blood properties (Erythrocyte, hematocrit and hemoglobin) as values showed the same pattern;, fish groups offered diet contained 900mg AA/kg had the best results comparing to the control diet; muscles, serum lipid values decreased with increasing A.A level. Protein content showed best values in fish fed A A up to 900mg/kg diet. The observation on fish growth and health showed that Ascorbic Acid can be used as a commercial compound to reduce production costs and to increase total final profit.
Light isotope abundances in SEPs measured by

Observations of 9 Solar Energetic Particle events detected by the instrument NINA from November 1998 to April 1999 will be presented. NINA is a silicon-based space detector in orbit since July 1998 on board the Russian satellite Resurs-01-N4, which flies at low altitude (about 800 km) in polar inclination. For every SEP event we reconstructed the power-law He spectrum in the energy interval 10–50 MeV/n, extracting spectral indexes from 1.8 to 6.8. Data of He andHe were then employed to determine the He/He ratio, that turned out to be high for some SEP events showing the enrichment in He. For the 7 November 1998 event this ratio reached the maximum value of 0.33± 0.06, with spectral indexes 2.5± 0.6 and 3.7± 0.3 for He andHe, respectively. The He/He ratio averaged over the remaining events was 0.011 ± 0.004. For all events we determined the deuterium-to-proton ratio. The average value of the H/H ratio, over all events, was (3.9±1.4)× 10−5 in the energy interval 9–12 MeV/n. During 24 November 1998 event, however, this ratio resulted about 10 times higher than normal coronal values.
Population density and percent parasitism of natural enemies of pea pests on seven pea (Pisumsativum L.) (Fabales: Fabaceae) varieties in Peshawar

Pea is attacked by many insect pests in Pakistan. For efficient control of insect pests of pea crop, population density of pests and its natural enemies is important. The present research project was carried out at the New Developmental Farm (NDF) of The University of Agriculture, Peshawar (UAP) during 2013-14. Seven pea varieties, i.e. Climax (New Zealand NTL), Classic, Leader, Azad P-1, PF-400, Meteor and Peshawar Local (Check) were tested. The results revealed that mean density of Lady bird beetles was non-significantly different among the cultivars, where it was higher on Meteor (4.96 m-1) and lower on Climax (4.22 m-1). Mean density of syrphid flies was non-significantly different among the treatments, whereas it was higher on Climax (7.33 m-1) and lower on Azad P-1 (5.83 m-1). Its density was significantly higher during week 2 (8.62 m-1). Parasitism rate of pea leaf miner parasitoids was higher on Peshawar local (36.29%) and lower on Climax (28.25%). The highest percent parasitism was recorded during week 5 (62.99%). Parasitoids emergence from pea aphids was maximum (80%) from Classic and minimum from Peshawar Local (36.67%). Density and parastitism rate of natural enemies of pea pests was not dependent on pea varieties and weeks, however, the present results will encourage use of natural enemies to overcome the hazards of insecticides and resurgence of pea pests.
IMPACT OF MONETARY POLICY ON FISHERY FOR ECONOMIC GROWTH OF NIGERIA

This study examined the impact of monetary policy on fishery growth in Nigeria economy. It adopted the error correction model (ECM) techniques to analyze the times series data. The result of the ECM confirms the existence of long-run equilibrium between the dependent and independent variables. Available information reveals policy instability and duplication of programs and projects under different policies. Analysis also shows fluctuation of fishery output over the years. The AugmentedDickey Filler (ADF) test indicates stationarity one-difference lagged length, except inflation rate. The study shows that long run relationship exists among the variables. The core finding of this study shows that money supply and interest rate are significant monetary policy instruments that drive the growth in Nigeria. It is consequently recommended that the Central Bank of Nigeria (CBN) should introduce more monetary instruments that are flexible enough to meet the ever-growing financial sector in order to attract both domestic and foreign investors; while more stringent punishment should be made for non-compliance to the monetary policies by financial institutions.
Images for Little Architects. Architecture and Architectural Drawing in Children’s Books and Comics: An Interesting Case Study

Literature for childhood, in its various expressions, is undoubtedly an important source of spatial and architectural education: children books indeed are rich in spatial references and frequently intercept the theme of dwelling. In 1970, Tison and Taylor, an architect and a professor of mathematics, created the popular Barbapapapa series, which is an extraordinary example of architectural pedagogy. This study aims to investigate the way architecture is explained and communicated through text and illustrations, considering in particular the following aspects: the role of pictures, the representation of space, the use of technical drawing and the transmission of a geometric content.
Optimizing Terminal Delivery of Perishable Products considering Customer Satisfaction

Freshness of products and timeliness of delivery are two critical factors which have impact on customer satisfaction in terminal delivery of perishable products. This paper investigates how to make a cost-saving vehicle scheduling for perishable products by maximizing customer satisfaction. Customer satisfaction is defined from the two aspects of freshness and time window. Then we develop a priority function based on customer satisfaction and use the hierarchical clustering method to identify customer service priority. Based on the priority, a multiobjective vehicle scheduling optimization model for perishable products is formulated to maximize customer satisfaction and minimize total delivery costs. To solve the proposed model, a priority-based genetic algorithm (PB-GA) is designed. Numerical experiments and sensitivity analysis are performed to show the validity and advantage of our approach. Results indicate that PB-GA can achieve better solutions than traditional genetic algorithm. The improvement of customer satisfaction is higher than the decrease rate of total costs within a certain shelf life range, which reveals that the proposed method is applicable to the terminal delivery of perishable products.
Placenta praevia: Preach and perception

Placenta praevia is a known obstetric condition that causes complications to mother and fetus. This study was done to evaluate the knowledge of placenta praevia amongst the obstetric patients. A cross sectional study was carried out in Hospital Ipoh, Perak among 323 antenatal and postnatal patients. Socio-demographic parameters (ie age, race, parity, occupation, educational level) and history of placenta praevia were studied in relation to level of knowledge and attitude towards placenta praevia. Twenty (6.2%) from 323 women had current or past history of placenta praevia. Three had history of placenta praevia while 17 had current placenta praevia with prevalence of 5.3%. The mean score of knowledge achieved by patients was 11.8 which indicated overall poor knowledge. Occupation, level of education and history of placenta praevia were found to have a relationship with level of knowledge regarding placenta praevia in all obstetric patients. There was a significant relationship between attitude of patients with current and history of placenta praevia to level of knowledge regarding placenta praevia. (p=0.037, <0.05). In conclusion, the knowledge and attitude towards placenta praevia among obstetric patients in Hospital Ipoh was better in those who had higher education status, white-collar occupation and currently pregnant with placenta praevia
THE EFFECT OF MOTIVATION AND COMPETENCE ON EMPLOYEE PERFORMANCE IN SATELLITE TECHNOLOGY CENTER - NATIONAL INSTITUTE AERONAUTICS AND SPACE

This study aims toanalyze the effect of motivation and competency factor on employee performance in Satellite Technology Center – National Institute of Aeronautics and Space. This study uses a quantitative approach using descriptive analytic surveywith cross-sectional study. Respondents in this study of 79 people who are employees of part dissemination, program and facility, administration.The data analysis used in this research were descriptive analysis and Structural Equation Modeling (SEM) PLS. The results show that motivationhas significant effect either directly or indirectly through the competency on employee performance in Satellite Technology Center – National Institute of Aeronautics and Space.
The Laffer curve for high incomes

An expression for the Laffer curve for high incomes is derived, assuming a constant Pareto parameter and elasticity of taxable income. The peak of this Laffer curve is given by the well-known Saez (2001) expression. Microsimulations using Swedish population data show that the simulated curve matches the theoretically derived Laffer curve well, suggesting that the analytical expression is not too much of a simplification. Policy conclusions do not change much when income effects are taken into account. A country-level dataset of top effective marginal tax rates and Pareto parameters is assembled. This is used to draw Laffer curves for 27 OECD countries. Revenue-maximizing tax rates and degrees of self-financing for a small tax cut are also computed. The results indicate that degrees of self-financing range between 28 and 195 percent. Five countries have higher tax rates than the peak of the Laffer curve.
Drama activities as ideational resources for primary‐grade children in urban science classrooms

In this study we explored how dramatic enactments of scientific phenomena and concepts mediate children's learning of scientific meanings along material, social, and representational dimensions. These drama activities were part of two integrated science-literacy units, Matter and Forest, which we developed and implemented in six urban primary-school (grades 1st–3rd) classrooms. We examine and discuss the possibilities and challenges that arise as children and teachers engaged in scientific knowing through such experiences. We use Halliday's (1978. Language as social semiotic: The social interpretation of language and meaning. Baltimore, MD: University Park Press) three metafunctions of communicative activity—ideational, interpersonal, and textual—to map out the place of the multimodal drama genre in elementary urban school science classrooms of young children. As the children talked, moved, gestured, and positioned themselves in space, they constructed and shared meanings with their peers and their teachers as they enacted their roles. Through their bodies they negotiated ambiguity and re-articulated understandings, thus marking this embodied meaning making as a powerful way to engage with science. Furthermore, children's whole bodies became central, explicit tools used to accomplish the goal of representing this imaginary scientific world, as their teachers helped them differentiate it from the real world of the model they were enacting. Their bodies operated on multiple mediated levels: as material objects that moved through space, as social objects that negotiated classroom relationships and rules, and as metaphorical entities that stood for water molecules in different states of matter or for plants, animals, or non-living entities in a forest food web. Children simultaneously negotiated meanings across all of these levels, and in doing so, acted out improvisational drama as they thought and talked science. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47: 302–325, 2010
Whose Job Is It?

This study examined the perspectives of parents of children with specific speech and language difficulties in the United Kingdom and described the issues they raised when considering provision to meet their children's needs. The study used a mixed-methods approach. Data from interviews were analyzed using a computer-based qualitative interview analysis method (ATLAS/ti; Muhr, 1997), with reference to evidence from a parent-completed rating scale and assessments of the children's language and educational development. The issues generated by the analyses were considered in relation to whether the child attended mainstream or special school. Results are discussed in the context of current educational policies for inclusive education and parental participation in meeting children's educational and social needs.
Multipole Moment Preserving Condensation of Volumetric Acoustic Sources

A meshfree multipole moment preserving condensation (MmMPC) method is proposed to spatially condense the volumetric quadrupole sources based on Lighthill’s acoustic analogy that are extracted from computational fluid dynamics (CFD) data. The purpose of the method is to reduce both the amount of data that must be stored during the CFD analysis and the number of acoustic sources driving the subsequent acoustic propagation analysis, while preserving the accuracy of the predicted sound pressure field. The method uses a distribution of particles with quintic kernels to integrate the acoustic sources and employs a multipole expansion of the harmonic free-field Green’s function to preserve the multipole moments of the underlying acoustic sources. The directivity of the sound pressure field due to the quadrupole sources are presented for the first four harmonics of the vortex shedding frequency for flow past a circular cylinder with Reynolds number, ReD=100 and Mach number, M=0.02. Using the MmMPC method, the number of acoustic sources is reduced by a factor of 120 with the associated far-field sound pressure levels within 0.5 dB of the non-condensed results for all four harmonics.