Miracle-dz/UniFAR-FTUs huggingface dataset:
ANTIMICROBIAL ACTIVITY AND PRELIMINARY PHYTOCHEMICAL SCREENING OF JUSTICIA GENDARUSSA (BURM. f.) AGAINST HUMAN PATHOGENS

To evaluate the phytochemical and antimicrobial properties of ethanolic and aqueous extracts of stem and leaves (Justicia gendarussa) against 12 human pathogens. Antimicrobial activity was evaluated by the disc diffusion and broth dilution methods and standard procedure were followed for the identification of phytoconstituents. The aqueous extracts of stem (J. gendarussa) showed maximum inhibitory activity against Shigella flexneri (26.20mm), Proteus mirabilis (24.50 mm), Escherichia coli (21.40mm) and Bacillus subtilis (20.25mm) respectively and ethanolic extract showed less inhibitory activity. The aqueous extract of leaves showed significant antimicrobial activity against only Staphylococcus aureus (26.33mm) while the ethanolic extract of leaves showed slight inhibitory activity against a few organisms. Based on the present result, stem extracts (aqueous and ethanolic) showed significant antimicrobial activity against most of the human pathogens in both methods. The result revealed that the antimicrobial properties of stem and leaves of J. gendarussa moreover associated with the presence of phenolic compounds, flavonoids, terpenoids, glycosides and tannins.
Manual de instalação, configuração e uso da caixa de areia de realidade aumentada (SARndbox)

Este manual apresenta instrucoes de instalacao, calibracao e de uso de uma Augmented Reality Sandbox (ARS - Caixa de Areia de Realidade Aumentada). A ARS e uma instalacao que visa integrar um sistema de realidade aumentada a modelos topograficos criados fisicamente, que tem sua superficie escaneada em tempo real. Esses modelos sao usados como plano de fundo para uma variedade de efeitos graficos e simulacoes. O produto final e uma instalacao contendo um computador, um projetor, um sensor de profundidade e uma caixa contendo material que pode ser manipulado, como areia, para criar as topografias interativamente e com baixa necessidade de supervisao por parte de um especialista. O manual de uso apresenta as orientacoes sobre a SARndbox traduzidas do Ingles para o portugues, descrevendo passo a passo todo o processo de instalacao e calibracao. Alem disso, com intuito de contribuir com sua utilizacao em estudos, pesquisas ou trabalhos na area ambiental, sao apresentados roteiros de uso. Estas aplicacoes foram testadas em uma SARndbox instalada na Universidade Tecnologica Federal do Parana (UTFPR), câmpus Campo Mourao. A metodologia utilizada no desenvolvimento do projeto envolveu pesquisa bibliografica sobre interfaces naturais, dispositivos e aplicacoes (caracteristicas, terminologia, tecnologias disponiveis e estado-da-arte); organizacao de um tutorial para instalacao e configuracao do ambiente de software necessario; e organizacao de roteiros de aplicacao para orientacao do usuario. A SARndbox tem se caracterizado como uma ferramenta didatica interessante, pois aproxima o uso de interfaces nao-convencionais no ensino e em estudos diversos. Essa convergencia permite que as atividades de alunos, professores e profissionais facam sentido, desde o inicio ate a elaboracao de estrategias para agir de modo autonomo. Alem disso, a interface pode permitir que o aprendiz explore de forma mais ampla o material educacional digital, atraves de uma interatividade ativa e sensorial. A construcao de um prototipo em laboratorio mostrou a viabilidade da ferramenta, com custo razoavel e acessivel para diversas instituicoes de ensino.
COMPARATIVE ANALYSIS OF MULTIPULSE ACDC CONVERTERS IN VCIMD

Power electronic devices are non-linear loads; the non linear nature of these switching devices causes harmonic current injection into the ac mains there by polluting the Power Quality (PQ) at the Point of Common Coupling (PCC). This PQ improvement is achieved by using multi-pulse converters in THREE-PHASE AC-DC Converters (ADCs). The proposed multi-pulse ac-dc converter is based on autotransformer configurations and is able to eliminate lower order harmonics in the ac supply current. This paper describes the comparative analysis of different types of multipulse converters in vector controlled induction motor drives (VCIMD). The proposed multi-pulse ac-dc converter is designed and the simulation model is developed in MATLAB.
Efficient Iris Recognition Management in Object-Related Databases

Biometric applications have grown significantly in recent years, particularly iris-based systems. In the present work, an extension of an Object Relational Database Management System for the integral management of a biometric system based on the human iris was presented. Although at present, there are many database extensions for different domains, in no case for biometric applications. The proposed extension includes both the extension of the type system and the definition of domain indexes for performance improvement. The aim of this work is to provide a tool that facilitates the development of biometric applications based on the iris feature. Its development is based on a reference architecture that includes both the management of images of the iris trait, its associated metadata and the necessary methods for both manipulation and queries. An implementation of the extension is performed for PostgreSQL DBMS, and SP-GiST framework is used in the implementation of a domain index. Experiments were carried out to evaluate the performance of the proposed index, which shows improvements in query execution times.
Price and Quantity Effects of the German Real Estate Transfer Tax

This paper analyzes the tax effects of the German real estate transfer tax (RETT). While the vast majority of single-family houses in Germany are owner-occupied, apartments are usually held by private and incorporated investors. For this reason, we conducted a regression analysis to determine the effects of increasing RETT on the number and the prices of transactions separately for these two market segments. Our findings suggest that increasing the RETT by 1% is associated with a decline in transactions by 0.23% for single-family houses, but with no significant effect on the prices of traded houses. Conversely, for apartments, we find no significantly negative effects on the transactions, but the price effect of the RETT tends to be negative. Finally, for vacant lots, we find even larger quantity effects than for single-family houses suggesting roughly an elasticity of -1. The results for this specific market segment indicate that the government operates near the top of a Laffer curve.
Direction Estimation in Single-Index Regressions via Hi lbert-Schmidt Independence Criterion

In this article, we use a Hilbert-Schmidt Independence Criterion to propose a new method for estimating directions in single-index models. This approach enjoys model free property and requires no link function to be smoothed or estimated. Furthermore, we propose a permutation test to check whether the estimated single-index is sufficient. Sampling distribution of our estimator is established. Finite sample performance of proposed estimates is examined through simulation studies and compared with two well-established methods: the refined Minimum Average Variance Estimation method (rMAVE, Xia et al., 2002) and the Estimating Function Method (EFM, Cui et al., 2011). Finally, a New Zealand Horse Mussels data set is analyzed via our approach to demonstrate the efficacy of our proposed approach.
Use of an exogenous carboxypeptidase to accelerate proteolysis in Reggianito cheese

Fil: Ceruti, Roberto Julio. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Santa Fe. Instituto de Desarrollo Tecnologico para la Industria Quimica. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnologico para la Industria Quimica; Argentina
Light on the Models of Photon and Electromagnetic Wave

The idea that electromagnetic radiation is a stream of punctiform "photons" proves to be a well-suited model at wavelengths below a few nanometers. This picture is worthless at wavelengths beyond a few millimeters, because only the wave model can explain the observations. The question of how to imagine the generation of a photon is discussed using examples from the metrologically easily accessible radio area.
On a New Seison Grube, 1861 from Coastal Waters of Kenya, with a Reappraisal of the Classification of the Seisonida (Rotifera)

On occasion of the discovery of a new species of a marine epizoic rotifer of the enigmatic Seisonidae, from Gazi Bay in Kenya, we reassessed the classification of the group. The taxon was until now known to contain only 2 species, viz. Seison nebaliae and S. annulatus, both of which live attached to Crustacea of the genus Nebalia. The new species, Seison africanus sp. nov., was diagnosed by its species-specific trophi morphology and relatively small size. A comparison with the 2 other known seisonid species reveals a sister group relationship between S. africanus sp. nov. and S. nebaliae, based on similarities in trophi structure and, accordingly, an assumed feeding mode and relationship with their hosts. The fundamental differences between these 2 commensal sister taxa and the ectoparasitic S. annulatus prompted a reevaluation of the generic classification of these animals. Accordingly, we propose to reestablish the genus Paraseison Plate, 1887 in order to accommodate P. annulatus (Claus, 1876) (comb. nov.).
How differences in perceptions of own and team performance impact trust and job satisfaction in virtual teams

ABSTRACT Employees frequently engage in social comparison processes and tend to perceive their own performance as superior compared to that of their peers. We expect this to be particularly salient in virtual teams where employees receive few cues upon which the comparison with other members of their team can be based. With reliance on social comparison and social exchange theory, we propose that such “perceived overperformance” has negative effects on job satisfaction, which is mediated by trust in the team. We confirm this with a sample of field-service employees (n = 753) using structural equation modeling with bootstrapping. We corroborated our findings in focus groups, which suggest the need for performance indicators that are easily communicated to and comprehended by employees to maintain trust and satisfaction.
New sunspots and aurorae in the historical Chinese text corpus? Comments on uncritical digital search applications

We review some applications of the method of electronic searching for historical observations of sunspots and aurorae in the Chinese text corpus by Hayakawa et al. etc. However, we show strong shortcomings in the digital search technique as applied by them: almost all likely true sunspot and aurora records were presented before (e.g. Xu et al. 2000), which is not mentioned in those papers; the remaining records are dubious and often refer to other phenomena, neither spots nor aurorae (this also applies to Hayakawa et al. 2017c). Most of the above publications include very few Chinese texts and translations, and their tables with abbreviated keywords do not allow the reader to consider alternative interpretations (the tables also do not specify which records mention night-time). We have compared some of their event tables with previously published catalogs and found various discrepancies. There are also intrinsic inconsistencies, misleading information (lunar phase for day-time events), and dating errors. We present Chinese texts and translations for some of their presumable new aurorae: only one can be considered a likely true aurora (AD 604 Jan); some others were selected on the sole basis of the use of the word "light" or "rainbow". Several alleged new aurorae present observations beside the Sun during day-time. There are well-known comets among their presumable aurorae. We also discuss, (i) whether "heiqi ri pang" can stand for black spot(s) "on one side of" or "beside" the sun, (ii) aurora color confusion in Hayakawa et al. (2015, 2016), and (iii) whether "white" and "unusual rainbows" can be aurorae.
Marketing Management Within the MNC : a Multi-Disciplinary Approach

This paper presents a multi-disciplinary framework for the study of marketing management within the multinational corporation (MNC). Research domains of MNC management, the role of knowledge within the firm and international marketing is combined. We identify overlaps between the different domains and we clarify how these intersecting areas produce synergetic effects for further investigation of marketing management within the MNC. More specifically, we see potential in the knowledge related literature for the formulation of paradigmatic assumptions that serve as a basis for research on MNC management in an international marketing context. INTRODUCTION: THE MNC IN THE COMPETITIVE ENVIRONMENT Multinational corporations (MNC’s) play an important role in today’s global economic landscape (Dunning 1985). Originating in one home country they operate in many host countries and continents, translating the particular opportunities that each of these markets offers into distinct features of their own international organization. In the global business environment increasingly sophisticated competitive strategies emerge (Bartlett and Ghoshal 1988). MNC’s, which historically flourished from the successful transfer of home based production technologies to foreign markets with low cost resources, can now be confronted with a corporate heritage that no longer provides them with adequate grounds for sustainable competitive advantage (Doz, Asakawa, Santos and Williamson 1997). Internally to the firm, the emphasis has shifted from capital and scale to knowledge and expertise as key strategic resources (Bartlett and Ghoshal 1993).
Unemployment Compensation and Wages: Evidence from the German Hartz Reforms – Reply

Using the introduction of fixed unemployment assistance in Germany in 2005 as a unique natural experiment, we find strong evidence that decreased unemployment compensation has an adverse effect on wages. We use micro panel data to identify and estimate the effect of this structural break. In eastern and western Germany, the relative effect is higher for women. In western Germany, the relative effect increases with skill level. In eastern Germany, there is no clear skill-specific pattern.
Assessment of Cardiovascular Risk in Assisted Living

Disorders of the heart and blood vessels are the leading cause of health problems and death. Early detection of them is extremely valuable as it can prevent serious incidents (e. g. heart attack, stroke) and associated complications. This requires extending the typical mobile mon itoring methods (e.g. Holter ECG, tele-ECG) by introduction of integrated, multiparametric solutions for con tinuous monitoring of the cardiovascular system. In this paper we propose the wearable system that integrates measurements of cardiac data with actual estimation of the cardiovascular risk level. It consists of two wireless ly connected devices, one designed in the form of a necklace, the another one in the form of a bracelet (wrist watch). These devices enable contin uous measurement of electrocardiographic, plethysmographic (impedance-based an d optical-based) and accelerometric signals. Collected signals and calculated parameters indicate the elec trical and mechanical state of the heart and are processed to estimate a risk level. Depending on the risk lev el an appropriate alert is triggered and transmitted to predefined users (e.g. emergency departments, the family doct or, etc.).
Effect of Soil Layer and Plant–Soil Interaction on Soil Microbial Diversity and Function after Canopy Gap Disturbance

Gaps by thinning can have different microclimatic environments compared to surrounding areas, depending on the size of the gap. In addition, gaps can play important roles in biological dynamics, nutrient cycling, and seedling regeneration. The impacts of gap size on soil microbial communities and enzyme activities in different soil layers in Chinese pine plantations are not well understood. Here, we created gaps of 45 m2 (small, G1), 100 m2 (medium, G2), and 190 m2 (large, G3) by thinning unhealthy trees in an aged (i.e., 50 years old) monoculture Chinese pine plantation in 2010. Soil samples were collected in 2015. The total, bacterial, Gram-positive (G+), and Gram-negative (G−) phospholipid fatty acid (PLFA) profiles were highest in medium gaps in both the organic and mineral layers. These indicesdecreased sharply as gap size increased to 190 m2, and each of the detected enzyme activities demonstrated the same trend. Under all the gap size managements, abundances of microbial PLFAs and enzyme activities in the organic layers were higher than in the mineral layers. The soil layer was found to have a stronger influence on soil microbial communities than gap size. Redundancy analysis (RDA) based on the three systems with different gap sizes showed that undergrowth coverage, diversity, soil total nitrogen (TN), total organic carbon (TOC), and available phosphorus (AT) significantly affected soil microbial communities. Our findings highlighted that the effect of gap size on soil microenvironment is valuable information for assessing soil fertility. Medium gaps (i.e., 100 m2) have higher microbial PLFAs, enzyme activity, and soil nutrient availability. These medium gaps are considered favorable for soil microbial communities and fertility studied in a Chinese pine plantation managed on the Loess Plateau.
A Study on Power Saving and Secure WSN

: - wireless sensor network has a good future in many daily usage of a society system. WSN application is countless. Main benefit of this application is that we can implement in most of daily usage work. Security and power are major issues and challenges of any WSN’s . Because these are the primary aspect of any WSN’s system, some limitation and behaviour of WSN pose security challenges. In WSN area researchers are trying to find out best solution for battery efficiency improvement and reliable security improvable of WSN. In this review paper we have analysed applications, issues and challenges of WSN.
Nearshore oblique sand bars

The coupling between hydrodynamics and the evolving topography in the surf zone has been theoretically examined for oblique wave incidence. It is shown that positive feedback can lead to the initial growth of several types of rhythmic systems of sand bars. The bars can be down-current oriented or up-current oriented, which means that the offshore end of the bar is shifted down-current or up-current with respect to the shore attachment. In the limit of strong current compared to wave orbital motion, very oblique down-current oriented bars are obtained with a spacing of several times the surf zone width. When wave orbital motions are dominant, systems of up-current oriented bars and crescentic/down-current oriented bars appear with spacings of the order of the surf zone width. The latter feature consists of alternating shoals and troughs at both sides of the break line with the inner shoals being bar-shaped and oblique to the coast. The growth (e-folding) time of the bars ranges from a few hours to a few days and it is favored by constant wave conditions. The range of model parameters leading to growth corresponds to intermediate beach states in between the fully dissipative and the fully reflective situations. Preliminary comparison with field observations shows qualitative agreement.
Mycoplasma pneumoniae’s perspectives in systems and synthetic biology

Mycoplasma pneumoniae was initially described in the 1940s as a highly pathogenic organism. Since then it has become recognized as a human lung pathogen which produces primary atypical pneumonia, among other extrapulmonary complications. Moreover, it stands as one of the smallest and best characterized bacteria, known by its reduced genome and lack of cell wall. There is a classification with two main subgroups or clinical isolates of this bacteria, types I and II, which appear to switch predominance in specific geographical areas through time. Nowadays, M. pneumoniae, thanks to its reduced genome, stands as an ideal candidate for achieving both goals of minimal cell and chassis cell within systems and synthetic biology. For these purposes it is necessary the identification of those genetic features associated with pathogenicity within the bacteria. Here we study 22 sequenced clinical isolates of M. pneumoniae through the analysis of SNPs, missense, indels and genome rearrangements. They revealed a new classification of strains and higher levels of CARDs toxin in Type II strains which may indicate increased virulence and pathogenicity in this group. Problem and objective The aims of this study is to overview the current status of Mycoplasma pneumoniae in the fields of systems and synthetic biology and the reasons why this bacterium stands as an ideal candidate for achieving the goals of both minimal cell and chassis cell. Furthermore it aims to explain the most recent advances in assessing M. pneumoniae’s mechanisms of pathogenicity, which will help to better understand this small bacterium. This last study on M. pneumoniae’s pathogenicity is based in the idea that the classification of the different clinical isolates is up to now carried out by using nucleic acid amplification tests (NAATs) that compare only a few genes and intergenetic regions. This methodology makes unclear of what other differences could exist in their genomes and therefore its effect on pathogenesis, the immune system or their response to antibiotics. For this reason, this study aims for the identification of virulence factors and antigenic proteins by doing a comparative genome study with 27 clinical isolates. Moreover, a full transcriptome and proteome analysis of four strains, representative of both main subgroups, was carried out as well. Mycoplasma pneumoniae Jaime Cano Martinez-Botas
„Innovációs kihívások és lehetőségek 2014-2020 között” „Challenges and Prospects for Innovation between 2014-2020” „Herausforderungen und Möglichkeiten von Innovationen zwischen 2014-2020” A TUDOMÁNYOS NAPOK PUBLIKÁCIÓI PAPERS OF SCIENTIFIC DAYS PUBLIKATIONEN DER WISSENSCHAFTLICHEN TAGU

The concept of bioeconomy is developing nowadays, mostly through linking companies into innovative value chains, as well as clustering different socio-economic processes of several sectors of economy. The paper aimed to present how the open innovations drive the development of bioeconomy. It shows that such industrial organization, alternative to classical market structure, by applying knowledge and innovative technologies, is able to deliver competitive products and services, through achieving objectives important from private and public point of view. It is argued that the transition from the classical linear model of innovation’s development towards the application of non-linear models is a turning point in the diffusion of bioeconomy concept. A part from theoretical analysis, there were used empirical evidences from the biofuel difussion in Europe. It was shown that the turn from close to open innovation difussion speeded up the growth of this market.