Miracle-dz/UniFAR-FTUs huggingface dataset:
Petrology of the Late Cretaceous peralkaline rhyolites (pantellerite and comendite) from Lake Chad, Central Africa

1 Ecole de Geologie et d’Exploitation Miniere (EGEM), Universite de Ngaoundere, BP: 454 Ngaoundere, Cameroun; mbowou2000@yahoo.fr 2 Institut Universitaire Polytechnique de Mongo, BP: 4377 N’Djamena, Tchad 3 Laboratoire des Sciences du Climat et de l’Environnement, IPSL, CEA-CNRS-UVSQ, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France 4 Faculte des Sciences, Universite de Ngaoundere, BP: 454 Ngaoundere, Cameroun 5 Universite Pierre-et-Marie-Curie et IUFM Academie de Versailles, 4, place Jussieu, 75252 Paris cedex 05, France 6 Centre de recherches petrographiques et geochimiques, UFR A9046, 15, rue Notre-Dame-des-Pauvres,B.P. 20, 54501 Vandoeuvre-les-Nancy cedex, France * Corresponding author
Accurate temporal resolution of harmonic content in both amplitude and phase

Frequency content of a periodic signal is easily performed using FFT. While magnitude is well predicted, phase information is usually meaningless and temporal changes are difficult to resolve accurately over short time periods, even with techniques such as DTFT or wavelets. These problems arise in the analysis of musical sounds and should be solvable since a well trained human ear can detect subtle and rapid changes to timbre and pitch that occur with expressiveness, techniques such as `vibrato', and lack of tone control exhibited by music students. Starting with the premise that a musical sound is truly periodic, we obtain much more accurate information from a Fourier \emph{series} than from a Fourier \emph{transform}. In this paper the Fourier series of a periodic signal is evaluated using a least squares fit, as was done before the popularisation of the FFT algorithm, but the difference is that we precisely define the frequency before fitting the coefficients, which can be done over as few as 3 or 4 cycles. The proposed technique achieves the above objectives and opens up the possibility of exploring the role of phase in the quantification of musical sound, a critical component that has been traditionally ignored.
DN Tauri – coronal activity and accretion in a young low-mass CTTS

Context. Classical T Tauri stars (CTTSs) are young, accreting low-mass stars; their X-ray emission differs from that of their mainsequence counterparts in a number of aspects. Aims. We study the specific case of DN Tau, a young M0-type accreting CTTS, to extend the range of young CTTSs studied with high-resolution X-ray spectroscopy at lower masses and to compare its high-energy properties with those of similar objects. Methods. We use ad eepXMM-Newton observation of DN Tau to investigate its X-ray properties and X-ray generating mechanisms. Specifically, we examine the presence of X-ray emission from magnetic activity and accretion shocks. We also compare our new X-ray data with UV data taken simultaneously and with X-ray/UV observations performed before. Results. We find that the X-ray emission from DN Tau is dominated by coronal plasma generated via magnetic activity, but also clearly detect a contribution of the accretion shocks to the cool plasma component at 2 MK as consistently inferred from density and temperature analysis. Typical phenomena of active coronae, such as flaring, the presence of very hot plasma at 30 MK, and an abundance pattern showing the inverse FIP effect, are seen on DN Tau. Strong variations in the emission measure of the cooler plasma components between the 2005 and 2010 data point to accretion related changes; in contrast, the hotter coronal plasma component is virtually unchanged. The UV light curve taken simultaneously is in general not related to the X-ray brightness, but exhibits clear counterparts during the observed X-ray flares. Conclusions. The X-ray properties of DN Tau are similar to those of more massive CTTSs, but its low mass and large radius associated with its youth shift the accretion shocks to lower temperatures, reducing their imprint in the X-ray regime. DN Tau’s overall X-ray properties are dominated by strong magnetic activity.
TEMPORALITY IN STATIC VISUAL NARRATIVES: BASED ON EVENT, TIME, SPACE & PLACE RELATION

Stories are a sequence of events that unfold in time and space. Temporality is one of the fundamental elements that makes a Static Visual Narrative (SVN). To understand ‘time’ in an SVN, one has to read the compositional space within which the story unfolds. Space (in an SVN) more often than not implies the ‘Location or Place’ where the event occurs. Acknowledging the presence of ‘Time-Space (Place)’ unit in an SVN, helps comprehend the ‘event’ or ‘progression of events’ in a story that is illustrated. In this paper we first understand what ‘Event, ‘Time’, ‘Space’ and ‘Place’ mean as individual concepts and study their graphic representational possibilities. Next, we identify patterns of ‘Event [Time–Space (Place)]’ unit based on the representational possibilities and collate our findings in a table. Finally we support our findings with examples of SVNs demonstrating the employment of the patterns identified. Thus, our study shows that Space in an SVN is designed based on the metaphor of Place or Location of the event.
Low Power VLSI: High End Design Techniques

Low power has emerged as a principal argument in today's electronics diligence. The need for low power has caused a major hypothesis shift where power dissipation has become as important a consideration as performance and area. This object reviews various strategies and methodologies for designing low power circuits and systems. It describes the many issues facing designers at architectural, logic, circuit and device levels and presents some of the techniques that have been proposed to overcome these complications. The paper concludes with the future challenges that must be met to design low power, high performance systems.
Diel and tidal variations of benthic assemblages in sediments associated with boulder fields

During daytime low tides, assemblag'es living in sediments below boulders differ from those living in sediments not overlaid by boulders. It is, however, not known whether these differences are consistent under different tidal or diel conditions. In this study, the composition of assemblages living in sediments associated with boulder fields (below and adjacent to boulders) under different diel (day and night) and tidal (high and low) conditions, was investigated. Significant differences between assemblages living in sediments below boulders and those living in sediments without boulders persisted during different combinations of daylight and state of tide. Species responsible for these differences did, however, change in relation to the level of the tide, but not to time of day. The presence of boulders in sediments allows the coexistence of species usually found on rocky substrata with those usually found in sediments. Mechanisms to explain intertidal movements of invertebrates in either hard or soft-bottom benthic assemblages have been very well described in the literature. The patterns of spatial distribution, in relation to diel and tidal fluctuations, of individual taxa found in this study, however, cannot easily be explained by these mechanisms. Consequently, the mechanisms of migrational movements of benthic assemblages associated with boulder fields need development of new conceptual models. A model considering the structural complexity of the boulder fields and the interactions between hard- and soft-bottom habitats is proposed herein.
Pathological and molecular characterizations of slow leaf rusting in fifteen wheat (Triticum aestivum L. em Thell) genotypes

Leaf rust caused by Puccinia triticina, is a globally important fungal disease of wheat ( Triticum aestivum L. em. Thell), resulting in significant yield losses, sometimes up to 40% worldwide. In this study we investigated slow rusting resistance at pathological and molecular level. Fifteen (15) wheat genotypes which also included multiple crosses with the aim to characterize pyramid resistance genes, including slow rusting genes like Lr46 and Lr50 were evaluated for disease severity percent, latent period and incubation period under field conditions. Detached leaf assay was also performed with three virulent pathotypes viz., 21R55 (104-2), 121R63-1 (77-5) and 29R45 (12-5), under controlled laboratory conditions. Genotypes, KIRITATAI//HUW234+LR34/PRINIA, WAXWING*2/TUKURU, WBLLI*2/KIRITATI, KAMBI*2/-BRAMBLING and KAMBI*2/KIRITATI were very close to near immunity and showed comparatively higher level of resistance against all the three pathotypes. Disease severity in resistant genotypes was traced type 5 to 6% in both years, while it was 60 to 80% in the case of susceptible genotypes, that is, ‘Agra Local’ (S1). Similar pattern was observed for AUDPC, that is, <250.0 in the resistant genotypes, while it was beyond 1000.0 in ‘Agra Local’. The shorter mean latent (7.67) and incubation period (6.0) was observed in susceptible genotypes, that is, ‘Agra Local’ to all the resistant genotypes, that is, LP (10 to 12) and IP (9 to 10); while testing against all the three different pathotypes. Linked microsatellite markers were used to confirm the presence of different rust resistance genes required to achieve near immunity. Out of 10 primers, nine produced gene specific bands with all genotypes except the control, that is, Agra Local. Genotypes which showed slow rusting, had longer latent period and incubation period as well as reduced percent disease severity and confirmed the presence of four to five resistance genes including slow rusting genes, that is, Lr46 and Lr50 . This indicates that these genotypes have potential durable resistance and can be used as parental lines in the development of more durable rust resistance. Key words : Near immunity, pathotypes, Puccinia triticina , SSR.
Interdependence in Farmer Technology Adoption Decisions in Smallholder Systems: Joint Estimation of Investments in Sustainable Agricultural Practices in Rural Tanzania

Soil fertility depletion is considered one of the main biophysical limiting factors for increasing per capita food production for smallholder farmers in Sub-Saharan Africa. The adoption and diffusion of sustainable agricultural practices (SAPs), as a way to tackle this challenge, has become an important issue in the development policy agenda in the region. This paper examines the adoption decisions for SAPs, using recent primary data of multiple plot-level observations collected in 4 districts and 60 villages of rural Tanzania. The paper employs a multivariate probit technique to model simultaneous interdependent adoption decisions by farm households. The analysis reveals that rainfall, insects and disease shocks, government effectiveness in provision of extension services, tenure status of plot, social capital, plot location and size, and household assets, all influence farmer investment in SAPs. Policies that target SAPs and are aimed at 1 Corresponding author: Menale Kassie: m.kassie@cgiar.org. Tel: 254(20) 722 4628; Fax: 254(20) 7224600. 2 organizing farmers into associations, improving land tenure security, and enhancing skills of civil servants can increase uptake of SAPs in smallholder systems.
Stable Atmospheric Boundary Layers and Diurnal Cycles: Challenges for Weather and Climate Models

The representation of the atmospheric boundary layer is an important part of weather and climate models and impacts many applications such as air quality and wind energy. Over the years, the performance in modeling 2-m temperature and 10-m wind speed has improved but errors are still significant. This is in particular the case under clear skies and low wind speed conditions at night as well as during winter in stably stratified conditions over land and ice. In this paper, the authors review these issues and provide an overview of the current understanding and model performance. Results from weather forecast and climate models are used to illustrate the state of the art as well as findings and recommendations from three intercomparison studies held within the Global Energy and Water Exchanges (GEWEX) Atmospheric Boundary Layer Study (GABLS). Within GABLS, the focus has been on the examination of the representation of the stable boundary layer and the diurnal cycle over land in clear-sky conditions. For thi.
A preliminary study of argumentation frameworks and argumentation schemes that appeal to expert opinion

The research in argumentation has produce systems with a human-like mechanism for commonsense reasoning. One form of representing arguments is called Argumentation Schemes, in which are argument forms that represent inferential structures of arguments used in everyday discourse, and in special contexts like legal argumentation, scientific argumentation, and especially in AI. One type of argumentation scheme corresponds to appeal to Expert Opinion or Position-to-Know argumentation. Position-to-know reasoning is typically used in an information seeking type of dialogue where one has to depend on a source. Most of such argumentation frameworks are based on Dung’s seminal work characterizing Abstract Argumentation Frameworks. In this work we introduce a novel framework, called Expert Argumentation Framework (EAF), extending AF with the capability of modeling the quality of expert associated with the arguments that proposed.
A new method for ranking the most influential node in complex networks

Currently, understanding the topology structure and function of complex networks has become a hot research top ic, and finding the most influential node in a complex network has great significance in marketing, public opinion analysis, disease control and so on. We often use the degree centrality and some other centralities to measure the impact of the node, but they only reflect partial nature of the network. In order to describe the key nodes of the network more accurately, in this paper, we present a new method of ranking the most influential node in a complex network, which not only takes the degree centrality into consideration but also takes the position of the nodes in the network and the nodes' important neighbors into account. Then we use the Independent Cascade Model for propagation simulation. Experiments show that the method we proposed could identify the most influential nodes more effectively. Compared with the traditional method it has better di ssemination of results and lower time complexity.
A proposal to investigate the problems of three-phase distribution feeders supplying power to SWER systems

Long distribution feeders connected to Single Wire Earth Return (SWER) systems are unique subsystems of the electric power network in Australia, especially in the State of Queensland. Since the SWER systems are connected between two phases of a distribution line via an isolating transformer, they are inherently unbalanced loads. In this paper a proposal will be developed to investigate the problems associated with the SWER systems and to suggest possible solutions. The study is based on an actual distribution feeder supplying power to several SWER lines in a rural area of the State of Queensland, Australia. Some issues will be addressed including suggestions for correcting the unbalanced operation, high energy losses, voltage and load profile, and the quality of power supplied to the customers.
Leadership of Presidents of Brazilian Olympic Sport Federations: Comparison between Real and Ideal Perceived Competencies Profiles According to Their Experience

This research aimed at verifying whether there are differences in behavioural self-perception of presidents of the Brazilian Olympic Sport Federations regarding the real and ideal leadership competencies profiles, taking their time of experience in position into account. This study comprised two complementary studies. The sample of the first study included 83 participants who filled out a translated and adapted version of the Managerial Behaviour Instrument. In the second study, ten presidents of the Olympic Sport Federations of Minas Gerais were interviewed and their answers were content analysed; complementary, there were consulted the statutes of their organizations in what concerns to their duties. Overall, the analysis of the results of both studies showed that all presidents perceived themselves as being competent and, in general, they considered the need of some improvements in their leadership competencies. Furthermore, the presidents declared that, over time, some knowledge and competencies have been acquired and developed, allowing them to adjust management practices. In sum, the time of experience seems to play an important role in the self-perception and development of leadership competencies in these Brazilian presidents.
Biodegradation of microcystin by a new Bacillus sp. isolated from a Saudi freshwater lake

-1 ) in batch experiments under environmentally related conditions. The degradation of MC-RR was fully completed within 5 days after a lag period of 2 days. The MC-RR degradation by AMRI-03 strain occurred in a medium containing nitrogen and phosphorus, indicating that this could likely occur along with other organic compounds found in the environment. Therefore, the coexistence of such bacteria with MCs in the same environment can contribute to the self-purification of the ecosystem from such potent toxins.
Institutions and economic growth in transition countries — new experiences and implications from financial crisis 2007 – 2010 ( Part 2 ) DAWID PIĄTEK

Motivation: Cross-country growth regressions indicate that institutions are important for growth. Some institutions are created, protected and enforced by the government — they are the institutions of state. The most important for economic growth are: economic freedom and protection of property rights, political freedom (or democracy), quality of governance and the rule of law. Institutions are especially important in transition countries. Two questions arise: were institutions important for economic growth in transition countries during the financial crisis? What happened to the institutions of state during the financial crisis? Aim: The aim of the second part of this article is to verify two hypothesis about institutions and economic growth in transition countries, which were put forward in the first part of this article. In order to estimate the relationship between institutions and economic growth in transition countries during the crisis, a cross-sectional regression was conducted. Additionally the Granger causality test was conducted. Results: The obtained results indicate that during the recession, in countries were before the crisis the institutions were worse, the pace of the economic growth was greater (hypothesis 1 should be rejected). In order to verify hypothesis 2 that the economic growth contributes to changes in state institutions in such a way that the faster the pace of growth the greater the improvement in state institutions a cross-sectional regression was used and the Granger causality test was conducted. Obtained results do not confirm the hyORIGINAL ARTICLE received 13.10. 2015; revised 18.06. 2016; accepted 31.12. 2016 Citation: Piątek, D. (2016). Institutions and economic growth in transition countries — new experiences and implications from financial crisis 2007–2010 (Part 2). Ekonomia i Prawo. Ecomomics and Law, 15(4): 527–545. doi:10.12775/EiP.2016. 036. EKONOMIA I PRAWO. ECONOMICS AND LAW, 15(4): 527–545 528 pothesis 2. The estimates of parameters were in line with the expectations but statistically insignificant.
LONG-TERM EFFECTS OF A CHILD LABOUR BAN ON ADULTS' OUTCOMES: EVIDENCE FROM BRAZIL

In December 1998 the Brazilian minimum legal age of entering the labour market increased from 14 to 16. This event gave rise to a natural experiment as it prevented children who turned age 14 in January 1999 or after from participating in the formal labour force. This paper uses exact date of birth and household surveys of 2007, 2008, 2009 and 2011 to uncover the long run impacts of this intervention comparing outcomes of the cohorts who were age 14 just before and just after the law passed. Since the estimates are performed for all individuals in the two cohorts, the parameter the estimates will be identifying is the intent-to-treat (ITT). Estimates are provided for the whole period as well as allowing for heterogeneous time effects. To check whether the change in the law affected groups with different socio-economic background, estimates are provided for whites and non-whites separately. Unconditional quantile treatment effects (QTE) are also estimated to check whether the child labour ban had distributive effects. The main results suggest that the law affected white and non-white males differently. Preventing the whites from entering the labour force at age 14 resulted in better long run outcomes. For the non-whites the opposite is observed. QTE estimates indicate that the law had distributive effects. Most of the estimates are robust to different bandwidths. Finally, a placebo test is performed for two cohorts presumably unaffected by the law. None of the estimates are statistically significant.
Market Orientation, Learning Organization and Dynamic Capability as Antecedents of Value Creation

Strategic competitiveness is achieved when a firm successfully formulate and implement a strategy of value creation. In order to create competitive advantage, the theory of competitive advantage have contributed to the present two major schools of the Market-Based View (MBV) and Resources-Based View (RBV), which both lead the company in creating a competitive advantage through superior value. The purpose of this paper is to examine the relationship between market orientation, learning organization and dynamic capability on value creation. Using a questionnaire survey, the paper is based on data collected from 105 owners or managers of industry creative in Indonesia. The partial least squares (PLS) structural equation modeling approach was used to analyze the data and test the hypotheses.The results indicate that, among the market orientation, learning organization, dynamic capability are significantly and positively related to value creation.
A complex systems approach to e-governance adoption and implementation in Bayelsa State, Nigeria

Globally, public sector innovation has become a big issue as citizens demand for greater accountability, effectiveness and efficiency in service delivery, and the liberalisation of the governance system. Debate on e-government evolved in the last decade in parallel with a broader discussion on e-governance, where the concept and practice of e-governance further encompasses the e-government phenomenon. Because of the complexities of governance and e-governance, this chapter presents e-governance as a close, large integrated, open and sociotechnical (CLIOS) framework to meet present and emerging challenges of the e-world, as well as enhance good governance for sustainability. Novel descriptions of e-governance, governance, CLIOS, complex adaptive systems, sociotechnical systems were provided from literature. From a socio-technical perspective, the design consideration for the adoption and implementation of e-governance architecture for a State in an emerging economy like Nigeria was provided. The contextual aspects that needed to be considered for the adoption of e-governance were discussed and citizens interface with governance through e-governance platforms were highlighted. Examples of countries implementing e-governance, benefits and challenges regarding the Bayelsa case were discussed.