Miracle-dz/UniFAR-FTUs huggingface dataset:
Turning information quality into firm performance in the big data economy

Purpose Big data analytics (BDA) increasingly provide value to firms for robust decision making and solving business problems. The purpose of this paper is to explore information quality dynamics in big data environment linking business value, user satisfaction and firm performance. Design/methodology/approach Drawing on the appraisal-emotional response-coping framework, the authors propose a theory on information quality dynamics that helps in achieving business value, user satisfaction and firm performance with big data strategy and implementation. Information quality from BDA is conceptualized as the antecedent to the emotional response (e.g. value and satisfaction) and coping (performance). Proposed information quality dynamics are tested using data collected from 302 business analysts across various organizations in France and the USA. Findings The findings suggest that information quality in BDA reflects four significant dimensions: completeness, currency, format and accuracy. The overall information quality has significant, positive impact on firm performance which is mediated by business value (e.g. transactional, strategic and transformational) and user satisfaction. Research limitations/implications On the one hand, this paper shows how to operationalize information quality, business value, satisfaction and firm performance in BDA using PLS-SEM. On the other hand, it proposes an REBUS-PLS algorithm to automatically detect three groups of users sharing the same behaviors when determining the information quality perceptions of BDA. Practical implications The study offers a set of determinants for information quality and business value in BDA projects, in order to support managers in their decision to enhance user satisfaction and firm performance. Originality/value The paper extends big data literature by offering an appraisal-emotional response-coping framework that is well fitted for information quality modeling on firm performance. The methodological novelty lies in embracing REBUS-PLS to handle unobserved heterogeneity in the sample.
Finfish nutrition in Asia : methodological approaches to research and development

Fish nutrition is fundamental to most aquaculture practices in Asia. Although IDRC research support aims, in part, to promote the culture of species requiring no supplementary feeding, it is recognized that formulated feeds are required to increase productivity of many important species now being cultured within the region. This requirement will undoubtedly continue in the future. Through observing some nutrition research projects, it has become apparent that many of the basic approaches to applied nutrition are not readily available to researchers. Thus, part I of this publication deals with methodological approaches to research and development. Included are discussions on nutrient requirements and deficiencies, fish feeds and their quality, feeding practices, nutrition of broodstock and larvae, and approach and design of nutrition experimentation, as well as an extensive reference and suggested reading list. Part II presents the proceedings of the Asian finfish nutrition workshop held in Singapore, 23-26 August 1983. Included are research papers dealing with a variety of questions that are important for countries with in the region.
Silver nanoparticles biosynthesis and impregnation in cellulose acetate membrane for anti-yeast therapy

Silver nanoparticles (AgNPs) are nanoforms that express higher antimicrobial potential due to their shape and reduced size. The use of fungi to mediate the synthesis of AgNPs has increased the interest of scientists because of their rapid growth, large-scale cultivation and secretion of non-toxic molecules. The aim of this study was to synthesize AgNPs mediated by Aspergillus oryzae DPUA 1624 and evaluate the antimicrobial activity of these molecules incorporated in cellulose acetate nanomembranes (NanoMAC). The synthesis of AgNPs was confirmed by UV-visible spectroscopy and the characterization was performed by dynamic light scattering, transmission electron microscopy, X-ray diffraction, X-ray dispersive energy and advanced spectroscopy and spectroscopy methods. The synthesis of the membrane was done by electro-spinning and its thickness was analyzed in scanning electron microscope. The AgNPs were added to NanoMAC and the antimicrobial effect was evaluated by agar diffusion method against Staphylococcus aureus, Escherichia coli and Candida albicans. The aqueous extract of A. oryzae mediated the synthesis of AgNPs with rounded and some triangular shapes. The diameter and zeta potential of these particles were 61.15±11.45 nm and -28.7 mv, respectively. The NanoMAC with AgNPs showed an increase in antifungal activity of 24.22% when tested against C. albicans. This study demonstrated that A. oryzae is able to mediate AgNP synthesis with anti-yeast action and the impregnation of AgNPs in acetate cellulose nanomembranes resulted in the development of a more efficient antimicrobial nanocomposite. Key words: Silver nanoparticles, Aspergillus oryzae, cellulose nanofibers, anti-yeast.
Diseases of Pyrethrum in Tasmania: Challenges and Prospects for Management.

Pyrethrum (Tanacetum cinerariifolium (Trevir.) Sch. Bip. ) is a perennial plant and member of the Asteraceae that is endemic to the Dalmatian region of the former Yugoslavia (36). Pyrethrum is cultivated commercially solely for the production of six closely related esters called pyrethrins. The plant is tufted, slender, and herbaceous, growing to a height of approximately one meter (18). Leaves are alternate and pinnately lobed/narrowly lanceolate to oblong lanceolate. The daisy-like flowers are produced at the termini of stems and consist of a cluster of 40 to 100 bisexual, yellow disk florets encircled by a ring of 18 to 22 pistillate white ray florets atop a moderately convex to subglobose receptacle (Fig. 1; 100). Disk and ray florets both possess 3 to 10 ribbed achenes located between the floret and receptacle. Involucres generally range between 12 and 18 mm in diameter (17,18). Approximately 94% of the pyrethrins are produced within secretory ducts and oil glands of the achenes of the mature pyrethrum flower, with a minor percentage of oil glands and secretory ducts also found in leaves, stems, and roots (99). Pyrethrins can be separated into two groups of three ester compounds: pyrethrins I and II. The pyrethrin I fraction contains chrysanthemic acid products, including pyrethrin I, cinerin I, and jasmolin I. The pyrethrin II fraction is derived from pyrethric acid and made up of pyrethrin II, cinerin II, and jasmolin II (19,27). Compounds within both fractions contain insecticidal properties used in household and commercial pest control products. These compounds are referred to as “knockdown” and kill agents for many arthropods, yet are of low toxicity to mammals. Pyrethrins also have the advantage over other synthetic insecticides of being rapidly broken down upon exposure to light and air, are metabolized quickly, and can be used in the production of organic farm products. Thus, natural pyrethrins are generally considered to be nonpolluting (19,27). The major areas of pyrethrum production worldwide are located in East Africa (Kenya, Rwanda, and Tanzania), Tasmania (Australia), China, and Papua New Guinea (85,94). Production of pyrethrum in Kenya began in 1928, and despite some fluctuations in annual supply, Kenya is still one of the major suppliers to the world’s market. Pyrethrum cultivation in Kenya is centered in four production areas: the northern and southern Rift Valleys, Mount Kenya, and near Lake Victoria (94). Tasmania is the other major world producer and grows approximately 2,000 hectares. In Tasmania, pyrethrum is grown predominantly along the northwest coast of the island, between Deloraine (41° 31′ S; 146° 39′ E) and Table Cape (40° 56′ S; 145° 43′ E). The cultivation of pyrethrum differs markedly between Tasmania and the other production areas of the world. For example, in 2001 approximately 200,000 growers were involved in pyrethrum production
Multiphotonic and Harmonic generation microscopy : an attractive label free imaging and non-destructive observation of collagenic and adipose tissues in pathological muscle context

Second harmonic (SHG) and third harmonic generation (THG) provide powerful tools for collagenic and adipose tissue imaging respectively in unstained section. These properties due to the multiphotonic excitation represent very promising approach to explore the state of various degenerative diseases associated with abnormal fibrotic and fat tissue. In this report, we use SHG/THG to explore the fibrotic and fat tissue in muscular dystrophy context using rat and dog model. By comparison with classical used immunolabeling dedicated to collagen, we confirmed that SHG microscopy has strong potentiality to follow the fibrosis content in the disease. We also demonstrated that THG can be used to follow the distribution of lipid bodies in cells and dystrophic tissue. Thanks to these properties, the combination of fluorescence and harmonic signals represent a promising way to monitor the course of the neuro muscular diseases as well as the efficacy of therapeutic strategies.
Students’ understanding level of friction force direction concept on rolling object

Students’ understanding is the students’ ability to representing the concept correctly. Understanding and illustrating the direction of friction is very important in solving dynamic motion problems. The general idea that the direction of friction force is opposite to the direction of objects motion. This research aim was to describe students’ understanding level of friction force direction on rolling object without slipping in the horizontal plane. This research used survey method by using descriptive qualitative. The sample used consists of 28 students who were selected bypurposive sampling in the academic year 2017/2018 of Physics Education, Universitas PGRI Madiun. Data collected from three-tier diagnostic test about the direction of friction force. A test was given to 28 students who had obtained the friction force topic in the lecture. The result is 10.7% students can understand and explain the friction force direction on the spool caused by the external force. 3.57% of the students can explain the friction force direction on the sphere with the external force at the center and the edge of the sphere and 3.57% can explain the friction force direction on each bicycle wheel. The friction force direction is not always opposed to the object’s motion. The friction force direction acting on the rolling object can be pointed in the opposite direction or in the same direction of an external force. This research in further can be used to improve the learning process of friction force.
Integral Representation of Quaternion Elliptical Density and its Applications

In this article, an integral representation for the density of a matrix variate quaternion elliptical distribution is proposed. To this end, a weight function is used, based on the inverse Laplace transform of a function of a Hermitian quaternion matrix. Examples of well-known members of the family of quaternion elliptical distributions are given as well as their respective weight functions. It is shown that under some conditions, the proposed formula can be applied for the scale mixture of quaternion normal models. Applications of the proposed method are also given.
Disruptive sharing in a digital age: Rejecting neoliberalism?

Some argue that neoliberalism can be seen as having negated its negation, namely socialism and communism, and become unquestionable and common sense. However, many practices from below resist, reject or at least disrupt the stringent property rights regime and the primacy of the market, two core elements of neoliberal ideology. Some of these practices of resistance are in the form of a disruption to or rejection of the commodity exchange model. In this article we address three modes of sharing in a digital context, embedded in a cultural exchange model – sharing code, sharing content and sharing access. These different practices of giving and sharing are analysed according to the way in which reciprocity is articulated, the extent to which they disrupt the capitalist model of commodity exchange, and the ways in which they interact or not with it. We conclude that all forms of digital sharing involve degrees of reciprocity, and that all sharing in digital contexts is gradually appropriated by capitalist logics, mainly through the creation of auxiliary revenues. Many sharing practices do not intend to reject or disrupt, so, while some sharing practices might constitute a (partial) disruption to the commodity exchange model, they may not necessarily result in its negation. Recent attempts by states and parts of the entertainment industry to discipline or coerce the revivified participatory culture and its cultural exchange ethic to fit the commodity exchange model raise serious concerns.
Information sharing and access to finance of SMEs: cross country evidence from survey data

Using a survey of firms in 61 countries around the world (WBES) and econometric techniques that allow us to deal with observed and unobserved country specific components as well as with partial endogeneity, we explore the role of the development of credit information mechanisms such as private credit bureaus or public credit registries on small and medium-size enterprises' access to bank credit. We find that the development of information sharing mechanisms reduces significantly the financing gap between small and large firms.
ASSOCIATION FOR CONSUMER RESEARCH

Too Good to be True vs. Too High to be Good: The Role of Product’s Price and Form of Incentive in Sales Promotion EvaluationsIgor Makienko, Louisiana State UniversityStudy investigates how the form of incentive (monetary vs. nonmonetary) and the price level of a promoted product (normally priced vs. overpriced) affect consumers’ evaluations of economically identical deals. Although the first factor has received significant attention in previous research, only a modest degree of effort has been devoted to the second factor. Contrary to previous findings on strong positive effect of high implausible reference prices, results of this study indicate that when a promoted product is overpriced, respondents’ perceptions of the deal are significantly lower than when a promoted product is normally priced (regardless of the form of incentive).
A PIN-Loaded Microstrip Patch Antenna with the Ability to Suppress Surface Wave Excitation

A circular microstrip patch antenna design is proposed for applications that require suppression of surface waves and lateral waves. The proposed design is composed of a circular patch loaded with a single shorting pin on a grounded inhomogeneous dielectric substrate with a desired effective permittivity. The modal equation for the normalized resonance frequency of this design is solved numerically. Simulated and measured radiation patterns show that a good reduction of surface waves and lateral waves is achieved. A comparison between the present work and an alternative design in the literature is presented in this paper. The proposed design could find applications in large patch antenna arrays where mutual coupling needs to be eliminated and in high-precision global positioning system receivers where multipath interfering signals associated with low-angle reflection affect position accuracy.
Breakdown of topological Thouless pumping in the strongly interacting regime

We elucidate the mechanism for instability of topological Thouless pumping in strongly interacting systems from a viewpoint of symmetry-protected topological phases. If the protecting symmetries of the underlying topological phases change between noninteracting fermions and a bosonic system in the strong coupling limit, the symmetry protection argument enforces a gap closing and thereby predicts a breakdown of the topological pumping. We also demonstrate that, even in the weakly interacting regime where the bulk topological pumping is still robust, the interaction effects manifest themselves in the edge density profiles, leading to a unique feature of the pumping in open boundary conditions. Furthermore, an extension of the above results indicates that an analog of an interaction-induced phase of Weyl semimetals can be realized in the setup of the topological pumping. Our results provide a systematic understanding for the stability of topological pumping against strong interactions, to which the conventional perturbative argument cannot be applied.
Carbon Capture and Sequestration: How Much Does this Uncertain Option Affect Near-Term Policy Choices?

Policy makers as well as many economists recognize geological Carbon Capture and Sequestration (CCS) as a key option to avoid costly emission reduction. While an extreme perspective is to envision CCS as a magic bullet to solve the issue of climate change, the economics perspective is more balanced and see it as a part of a portfolio of mitigation actions. Besides, as any novel mitigation technology, CCS can be implemented with a twofold purpose; on one side it can substitute some other technological efforts to reach a given environmental target. On the other side, it offers the opportunity to go for additional emission reductions and reach a "safer" climate target. In order to balance these two possible utilizations of CCS and assess their respective effects on early policystrategies, we undertake a twofold numerical experiment. First, a cost-efficiency analysis is undertaken where CCS sole effect is substitution of other efforts. This is followed by a cost-benefit analysis where both purposes have to be balanced. We find that future availability of CCS is less a reason to relax near-term abatement efforts than what could be inferred from previous analyses. Moreover, cost-benefit analysis indicates that the environmental target should be more ambitious when CCS is included in the picture.
The Protective Effect of Ethanolic Extract of Sida Tiagii Bhandari Seeds Against Complete Freund's Adjuvant Induced Experimental Animal Model of Rheumatoid Arthritis

Summary Rheumatoid arthritis is a chronic, systemic, inflammatory autoimmune disorder causing symmetrical polyarthritis of large and small joints, typically presenting between the ages of 30 and 50 years. The objective of the study was to investigate the anti arthritic activity of the ethanolic extract of Sida tiagii Bhandari seeds against experimental animal model of complete Freund’s adjuvant (CFA) induced arthritis. Arthritis was induced in female Sprague Dawley (SD) rats by administration of complete Freund’s adjuvant in the sub plantar region of the hind paw. Indomethacin (2 mg/kg/day p.o.) was used as the standard drug. Ethanolic extract of Sida tiagii was administered at the following doses 30, 100 and 300 mg/kg/day p.o. The treatments were started on the day of CFA administration. The change in body weight, paw volume, diameter of the tibiotarsal joint and leukocyte count in the blood were measured at different time points. The results demonstrate that ethanolic extract of Sida tiagii Bhandari dose dependently showed significant anti-arthritic activity with minimal side effect. As no gastric ulcer was seen in the animals treated with the extracts.
Review of beneficial and remedial aspects of Cardiospermum halicacabum L.

Eco-friendly and bio-friendly plant based commodities have recently been given consideration for the avoidance and treatment of various human infections including microbial diseases throughout the world. Cardiospermum halicacabum L. belonging to family Sapindaceae is a herbaceous plant, extensively dispersed in tropical and subtropical areas of world. It grows in plains of Africa, America, Bangladesh, India and Pakistan. The herb is pubertal or glabrous, yearly or perpetually having a slim twig that climbs by tendrillar hooks. Leaves are ternate bicomponent and leaflets acuminate at top. The roots, leaves and seeds of herb are employed as herbal medication.The presence of flavones, aglycones, triterpenoids, glycosides, variety of fatty acids and volatile esters are confirmed by phytochemical screening. Secondary metabolites present include alkaloids, carbohydrates, proteins, saponins lignin, steroids, and cardiac glycosides. β-arachidic acid, apigenin, apigenin-7-O-glucuronide, chrysoeriol-7-Oglucuronide and 80 luteolin-7-O-glucuronide along with two crystalline compounds beta-sitosterol and beta-D-glycoside. Acetic acid, 1,6,10-Dodecatriene, 7,11,dimethyl-3- methylene-(E)-, phenol, 2,6-bis (1,1-dimethylethyl)-4-methylmethylcarbamate, 3-O-methyl-d-glucose, 1,14Tetradecanediol, 3,7,11,15-Tetramethyl-2-hexadecen-1-ol, phytol, pseudoephedrine, 2-propenamide were also recognized in ethanolic extract. The plant possess activities like antimicrobial, antifungal, antiparasitic, antidiarrheal, anxiolytic, rubifacient, antipyretic and management of painful, arthritic inflammatory conditions. Further investigations are needed to assess its isolated mode of action on various activities.
Structuring Factors Of The Cumacean Communities Of The Continental Shelf Of Southeastern Brazil

Cumaceos sao crustaceos peracaridos cosmopolitas que se distribuem desde a zona entre mares ate os fundos abissais. Habitam fundos arenosos e lamosos e eventualmente sao encontrados no ambiente pelagial. Apesar de sua importância na dieta de diversos organismos, e de serem considerados bons indicadores ambientais, poucos estudos ecologicos foram realizados com o grupo no Brasil, nao havendo uma avaliacao do papel que desempenham na estruturacao e funcionamento do ecossistema bentico. O presente trabalho teve como objetivo descrever a composicao e a distribuicao espaco-temporal das especies de Cumacea, investigar a existencia de comunidades e de sua estrutura, identificar os principais fatores responsaveis pelos agrupamentos encontrados e avaliar o efeito das mudancas sazonais da estrutura oceanografica sobre os descritores utilizados. Para tanto duas campanhas foram realizadas, no inverno de 2005 e no verao de 2006, em uma grade de 21 estacoes situadas na plataforma continental sudeste ao largo de Santos, dispostas em quatro faixas de profundidade (entre 10 e 100 m) e amostradas por meio de box corer com 0.1 m2 de area amostral. Do total de 24 especies encontradas, cinco foram as mais abundantes: Diastylis sexpectinata, D. sympterygiae, Eudorella sp. , Oxyurostylis salinoi e Anchistylis notus, esta ultima altamente dominante no verao. Diastylis sympterygiae foi caracteristica das estacoes rasas (< 16 m) e com salinidades baixas (33.07 - 34.2), tanto no inverno quanto no verao. Do total de 919 individuos obtidos pouco mais de 70% ocorreu no verao. A area foi dividida em quatro faixas de profundidade e, considerando a distribuicao da densidade de cumaceos nessas faixas, nao foi encontrada diferenca temporal significativa entre as amostras das duas campanhas. Entretanto, houve diferenca espacial entre as faixas na campanha de verao, sendo os valores mais elevados de densidade, diversidade e riqueza situados proximo a isobata de 50 m em ambas as campanhas, podendo ser atribuidos ao efeito continuo da Agua Central do Atlântico Sul sobre essa area. Os resultados mostraram ainda que a profundidade e as caracteristicas granulometricas do sedimento foram os principais fatores estruturadores das comunidades de Cumacea e determinantes da composicao e distribuicao das especies na area.