Miracle-dz/UniFAR-FTUs huggingface dataset:
Online Social Networks and Computer Skills of University Students.

Currently a large number of college students belong to social networks and spend several hours a week on them. Some sectors of society, like parents and teachers, are concerned about the negative impact on their academic work and in their personal lives. However, because the potential positive impacts have not been explored enough, this research addresses the question: What are the characteristics of online social networks that could facilitate the development of college students skills’? The research was qualitative and was conducted in a private institution of higher education. Twenty-one college students and thirteen college teachers participated. The results show that the characteristics of social networks that favor the development of ICT skills are primarily: 1) environment conducive to learning where students can learn by playing, racing, linking and imitating; 2) rich environment in technology tools, where there are primarily face tools, external tools executed outside the social network, internal tools, and external tools executed within the social network; 3) appropriate environment for the exchange of information, where communication can be: one to one, one to many, one to all contacts and one to all followers.
Location Awareness in Wireless Networks

With the proliferation of wireless networks and the declining cost of wireless devices there is increasing interest in the development of location aware applications. These applications include robotics, context aware systems to collect or disseminate information, duress alarms in institutions such as hospitals and prisons and security of the wireless network. There are many technologies that may be used to sense the location of mobile devices or personnel, including those based on infrared, ultrasonic, radio frequency tags and magnetic sensing. Most of these technologies require the deployment of devices specifically placed to support the location system. This paper focuses on a location system based on the RSSI of packets on the IEEE 802.11b wireless network. This technique has the great advantage that it may be implemented using off the shelf hardware that is generally already deployed to support the data network. A simple wireless network was deployed in the School of Computing Building at the Newnham Campus of the University of Tasmania and used to test the location performance of a location system based on Bayesian filtering of detected signal strengths.
Foreign Direct Investment and Exports Nexus: Cointegration and Causality Evidence from Cote d'Ivoire

This paper examines the relationship between foreign direct investment (FDI) and exports in Cote d’Ivoire using data covering the period 1970 to 2007. The residuals-based test of Gregory and Hansen (1996) shows that the two variables are cointegrated. The Granger causality tests reveal a long-run causal relationship running from exports to FDI, whereas no short term causal link has been found. Keywords : Exports; Foreign direct investment; Cointegration; Granger causality
From mutation to methylation - molecular markers in lung cancer

Lung cancer is one of the most common types of malignant neoplasms in Poland and in the world, and is associated with the worst prognosis. Within recent years, significant progress has been made when it comes to high-throughput and highresolution technologies in the field of molecular biology, i.e. next-generation sequencing, microarrays, and mass spectrometry, which contributed to the development of research in the fields of genomics, transcriptomics and epigenetics in lung cancer. Implementing the results achieved by these disciplines quickly allows for the analysis of somatic point mutations or translocations to be used in molecular cancer diagnostics, and, thus, for the personalization of treatment for patients with non-small cell lung cancer (NSCLC). Unfortunately, certain markers and prognostic predictors that could facilitate the detection of lung cancer in its early stages are yet to be found.
Curiosité: Inquiry-Based Instruction and Bilingual Learning

The issues that prompt this study are based on current research indicating the positive effects of inquiry learning onthe cognitive development of children. The purpose of this case study was to understand the effects of inquirylearning on the academic achievement and bilingual verbal ability of 5th grade bilingual students in a French/Englishdual immersion program. The treatment group of students completed research projects through a guided inquirylearning approach, while the control group experienced the traditional problem solving research approach. Initialfindings report a significant mean increase in mathematical reasoning, bilingual verbal ability, higher motivation tolearn, and increased self-efficacy in the treatment versus the control group of students.
The sensitivity of nonparametric misspecification tests to disturbance autocorrelation

We show that some nonparametric specification tests can be robust to disturbance autocorrelation. This robustness can be affected by the specification of the true model and by the sample size. Once applied to the prediction of changes in the Euro Repo rate by means of an index based on ECB wording, we find that the least sensitive nonparametric tests can have a comparable performance to a RESET test with robust standard errors.
SUB-PIXEL ACCURACY CRACK WIDTH DETERMINATION ON CONCRETE BEAMS IN LOAD TESTS BY TRIANGLE MESH GEOMETRY ANALYSIS

This paper deals with the determination of crack widths of concrete beams during load tests from monocular image sequences. The procedure starts in a reference image of the probe with suitable surface texture under zero load, where a large number of points is defined by an interest operator. Then a triangulated irregular network is established to connect the points. Image sequences are recorded during load tests with the load increasing continuously or stepwise, or at intermittently changing load. The vertices of the triangles are tracked through the consecutive images of the sequence with sub-pixel accuracy by least squares matching. All triangles are then analyzed for changes by principal strain calculation. For each triangle showing significant strain, a crack width is computed by a thorough geometric analysis of the relative movement of the vertices.
ASSESSING POTENTIAL TRANSPORT OF TYLOSIN IN THE LANDSCAPE

Tylosin is an antibacterial chemical used in livestock production. Tylosin is highly water soluble, only partially sorbed to manure, and potentially excreted by animals that receive it in their feed. Thus, tylosin can be contained in manure and is potentially mobile, but the fate of tylosin after application to agricultural fields is unknown. The objectives of this project were: (1) determine the concen tration and mass transport in runoff of tylosin, applied either alone or within manure, (2) determine the effect of manure on infiltration rate, (3) determine the effect of tylosin in the manure on infiltration rate, and (4) determine the effect of landscape position on infiltration rate. A small sprinkler infiltrometer was used to measure infiltration rate at three landscape positions in a field. Runoff was collected and tylosin concentrations were measured. When 176 mg of dry tylosin was applied to the soil surface, up to 6% (10.4 mg) of the applied tylosin was recovered in the runoff. When manure containing 0.344 mg of tylosin was applied, up to 23% (0.08 mg) of the tylosin was recovered in the runoff. Infiltration rates were reduced by manure and by implement traffic. These results show that tylosin can be transported in runoff. In areas where manure that contains tylosin is applied to fields, runoff reduction or prevention measures may be required to prevent tylosin from reaching surface water resources.
DOCUMENTO DE DISCUSIÓN DD / 04 / 03 Assessing Financial Vulnerability in Partial Dollarized Economies

The reduction of macroeconomic vulnerability in emerging markets is at the core of the research agenda. Liability dollarization plays a vital role and its implications have been addressed in the literature via a “financial accelerator” mechanism. If we asses vulnerability in terms of the evolution of investment, we claim that, in absence of an asset price channel, departures from a pure float will mitigate vulnerability and improve welfare. Conversely, with an active asset price channel a tighter exchange rate policy will have marginal effects on welfare and vulnerability when compared to that associated to a reduction in liability dollarization.
Analysis of Chaotic Ferroresonance Phenomena in Unloaded Transformers Including MOV

We study the effect of a parallel metal oxide surge arrester on the ferroresonance oscillations of transformers. It is expected that the arresters generally cause ferroresonance drop out. Simulation has been done on a three phase power transformer with one open phase. Effect of varying input voltage is studied. The simulation results reveal that connecting the arrester to transformers poles, exhibits a great mitigating effect on ferroresonant over voltages. Phase plane along with bifurcation diagrams are also presented. Significant effect on the onset of chaos, the range of parameter values that may lead to chaos and magnitude of ferroresonant voltages is obtained, shown and tabulated.
Incorporating time-series structure in medium-term recruitment projections

One of the key tasks in current fisheries research is to improve the performance, in terms of accuracy and utility, of projections of recruitment-driven population dynamics in the medium-term. Reliable indications of the median level and variability of recruitment over a five- to ten-year time-scale would be invaluable in the determination of appropriate levels of fishing mortality, in order to attempt to maintain sustainable fish stocks. Building upon the stochastic simulation approach currently adopted within ICES stock assessment working groups, this paper investigates the use of time-series models to characterise the historical development of residuals to fitted stock-recruitment models. We use the probability of SSB (spawning stock biomass) falling below Bpa (precautionary value of spawning stock biomass) over a range of multipliers on imposed fishing mortality as a diagnostic statistic to compare projections. Case studies of commercially-important fish stocks are presented (North Sea cod, haddock and whiting), and the potential implications of the new approaches for fisheries management are discussed.
Musical microtonal scales based in the quantitative measurement of the sensory dissonance of Sethares

William A. Sethares of the University of Wisconsin in Madison, has developed a quantitative theory of the dissonance from the experimental curves of dissonance/consonance for two sinusoidal sounds of different frequency obtained in the sixties from R. Plomp and W. J. M. Levelt. The theory proposes that the intervals more consonants for a given instrument depend on the structure of his timbre. This document explains how you can capture a correct timbre with a computer then to apply the dissonance algorithm to create a musical microtonal scale with criteria.
Interactive comment on “Elevated melt causes varied response of Crosson and Dotson Ice Shelves in West Antarctica” by David A. Lilien et al

Thinning rates used to calculated ice shelf elevation back in time are resolved over spatial resolution of 10’s of kilometres; recent work have shown that, at least for Dotson, thinning is highly localised to the grounding lines and on the western margin of the shelf. You should at least address the impact that this might have, or not, on your analysis. You allude to it in section 4.3 but can you be more specific as to where this might be the case?
Pressure-temperature-reaction history of metapelitic rocks from the Maryland Piedmont on the basis of correlated garnet zoning and plagioclase-inclusion composition

Abstract Regional structural interpretation, thermobarometry, and Gibbs-method calculations were combined to determine an approximate P- T path for kyanite-grade metapelitic rocks of the Baltimore Gneiss terrane. Garnet growth along the estimated P-T path was modeled using the computer program DiffGibbs. Models were evaluated by comparing calculated profiles of garnet components with measured profiles of a large garnet rich in plagioclase inclusions in a kyanite-bearing sample from the area. Modifications in the P-T path constrained by changes in garnet components along critical portions of the profile resulted in a very satisfactory match between measured and model-garnet profiles. In the most successful model, garnet growth began at 550 °C and 6500 bars in the assemblage chlorite + biotite + garnet + muscovite + plagioclase + quartz with increasing temperature and with decreasing and then constant pressure. At 570 °C and 5724 bars, staurolite was added to the assemblage and some garnet was consumed. In the model, garnet growth resumed after chlorite was consumed along a path having a substantial increase in pressure. The region near the rim with low measured grossular content was reproduced by cessation of garnet growth as temperature increased at constant pressure to a maximum of 615 °C at 6474 bars. After kyanite was added to the assemblage, grossular increased to the constant rim value only if temperature decreased and pressure increased. Cooling and decompression affected garnet zoning only very near the rim. Measured compositions of the rims of plagioclase inclusions in the garnet are consistent with plagioclase compositions predicted by the model. This study demonstrates that complex garnet zoning can be modeled successfully, even when the reaction history includes episodes of garnet consumption, over a path that is consistent with geologic evidence. Details of garnet zoning provide surprisingly tight constraints on the P-T path.
Devonian vertebrates from East Greenland: a review of faunal composition and distribution

The Devonian vertebrate faunas of East Greenland are reviewed and their distribution discussed for the first time in the light of the most recently published stratigraphical framework for the area. The predominantly Middle and Upper Devonian continental sediments have yielded representatives of most major groups of early fossil vertebrates, including heterostracans, placoderms, acanthodians, chondrichthyans, actinopterygians, lungfishes, porolepiforms, "osteolepiforms" and tetrapods, but to date, no single publication has treated them all in their stratigraphical context. We therefore attempt to place them into the most recent, formalised lithostratigraphy, providing improved resolution for their stratigraphical distribution, as a basis for comparing East Greenland with other Devonian faunal successions worldwide. The review highlights the fact that many problems of stratigraphical correlation and dating of the East Greenland Devonian deposits remain to be resolved by further fieldwork. Several assemblages ranging from Givetian to Famennian in age can be distinguished, that correspond to older superceded subdivisional nomenclature. A possible Frasnian fauna has been recognised for the first time, adding details to an otherwise poorly dated part of the succession. Typical Devonian taxa such as Holoptychius Agassiz, 1839 and Groenlandaspis Heintz, 1932 have apparently been recorded in an otherwise unique position above the Devonian-Carboniferous boundary in the upper part of the succession. New specimens of rare elements of the fauna including an unknown arthrodire placoderm, a putative chondrichthyan spine and a patch of possibly regurgitated acanthodian spines, are illustrated for the first time.
Brainstormers 3D { Team Description 2005

The main interest behind the Brainstormers' eort in the robocup soccer domain is to develop and to apply machine learning tech- niques in complex domains. Especially, we are interested in reinforcement learning methods, where the training signal is only given in terms of suc- cess or failure. Our nal goal is a learning system, where we only plug in 'win the match' { and our agents learn to generate the appropriate behaviour. As the server for the 2005 competition is not yet nished, this paper mostly describes changes since 2004 in the architecture of the Brainstormers3d team and the self-localization.
SCREENING OF THERMOSTABLE PROTEASE PRODUCING MICROORGANISMS ISOLATED FROM INDONESIAN HOTSPRING

Although many proteases had been studied and characterized, only a few of them are commercially available. Protease thermostability is one of the crucial properties for industrial application. This research aimed to isolate and to screen the potential isolate which produce thermostable protease. There were 6 isolates (BII-1, BII-2, BII-3, BII-4, BII-6 and LII), isolated using solid Minimal Synthetic Medium (MSM) supplemented with 1.5% skim milk, that have, protease activity. Based on the 16S-rRNA gene sequencing analysis, isolates BII-1, BII-2 and BII- 6 were identified as Bacillus licheniformis, isolates BII-3 and BII-4 were identified as Bacillus subtilis, while isolate LII was identified as Brevibacillus thermoruber. Three isolates (BII-6, BII-4 and LII) were then further investigated for the second screening step using liquid MSM supplemented with 1% skim milk. The isolates (BII-6, BII-4 and LII) optimally produced protease when they were cultivated at 35, 30 and 50o C respectively after 22 h of incubation. Protease produced by BII-6, BII-4 and LII had optimum temperature of 65, 60 and 85o C, optimum pH at 7-8, 8 and 9 and stable up to 100 min at 55, 60 and 75o C respectively.
Studies on amino acid excretion and digestibility in caecectomised laying hens of different age.

In studies on amino acid digestibility in laying hens the use of caecectomised rather than intact hens is advantageous because the effect of postileal microbial fermentation on amino acid excretion is reduced. It was the objective of this experiment to study whether the age affects amino acid digestibility in caecectomised hens. Caeca were surgically removed when the hens were 20 to 21 wk old. Six hens were kept individually in balance crates for quantitative measure of feed intake and excretion (faeces plus urine). Excreta were collected for 5 consecutive days, individually for each hen, when hens were 27, 40, and 57 wk old. Mean body weight in these 3 phases was 1.73, 1.89, and 2.00 kg, and laying performance was 100, 97, and 93%. The mean feed intake was 101, 104, and 103 g/d. The same diet was used throughout. Digestibility was calculated as the proportion of intake not recovered in excreta. The range in digestibility for all the 15 amino acids studied across all weeks was 64% (glycine) to 89% (glutamic acid), and for the essential amino acids 73% (threonine) to 88% (arginine). The mean digestibility of all amino acids was 80, 80, and 82% in wk 27, 40, and 57. For 9 amino acids the digestibility and also energy metabolisability was significantly higher in wk 57 than in wk 27 or 40. It was concluded that amino acid digestibility may change with age in caecetomised hens.
Development and production of sugarcane under different levels straw after four years of cultivation.

Environmental constraints, labour shortages and the search for greater efficiency have induced the mechanisation of sugarcane harvesting, providing a large amount of straw in the system, which provides benefits to the soil, the crop and the environment. The objective of this work was to evaluate the effect of the removal of different amounts of straw from the soil surface on the development and productivity of sugarcane in eutrophic Red Latosol. The experiment was conducted in an area belonging to the Usina in Bandeirantes, PR, using a randomised block design with four replications. The effects of six treatments (0, 25%, 50%, 75%, 100% of straw and sugarcane) were evaluated after four years of cultivation on the LAI (leaf area index), tillering, diameter, length and fresh mass of the stalks, in five periods: 60, 120, 180, 240 and 370 days after harvest (DAC). The results were submitted to analysis of variance and the means compared by Tukey’s test. The straw on the soil surface provided benefits to the development and productivity of sugarcane. The management of sugarcane burning, total removal of the straw (0% of soil cover) or 75% of straw resulted in a lower IAF and stalk diameter and a 37% decrease in final yield under conditions of water deficiency. The maintenance of 50% of straw is sufficient to favour the development and to provide greater productivity of the sugarcane, as it is possible to use the 50% surplus of the field for the production of ethanol of second generation or electric energy, without damage to the productivity of the culture.
Lightweight and Reliable Routing Approachfor In-Network Aggregation in WirelessSensor Networks

Wireless Sensor Networks (WSNs) in a large scale, will be increasingly deployed in different classes of applications for accurate monitoring. Due to the high density of nodes in these networks, it is likely that redundant data will be detected by nearby nodes when sensing an event. Since energy conservation is a key issue in WSNs, data fusion and aggregation should be exploited in order to save energy. In this case, redundant data can be aggregated at intermediate nodes reducing the size and number of exchanged messages and, thus, decreasing communication costs and energy consumption. In this work, we propose a Routing algorithm for aggregation of nodes in the network, that has some key aspects such as a reduced number of messages number, high aggregation rate, and reliable data aggregation and transmission. The proposed Routing algorithm was extensively compared to two other known solutions: the Information Fusion-based Role Assignment (InFRA) and Shortest Path Tree (SPT) algorithms. Our results indicate clearly that the routing tree built by Routing algorithm provides the best aggregation quality when compared to these other algorithms. The obtained results show that our proposed solution outperforms these solutions in different scenarios and in different key aspects required by WSNs.
Interplate fault slip along the Japan Trench before the occurrence of the 2011 off the Pacific coast of Tohoku Earthquake as inferred from GPS data

A sequence of M 7-class interplate earthquakes and transient postseismic slips following each of these earthquakes occurred along the Japan Trench before the occurrence of the giant earthquake on March 11, 2011. Continuous GPS data detected a significant postseismic deformation with displacements that were much larger than that of the coseismic offset. Moreover, the geodetic inversion results using these observations revealed that the total moment released by these transient slips was much larger than the coseismic ones. This differs from our understanding of the postseismic process that the postseismic deformation and slip are smaller than the coseismic ones. These transient processes may help us understand not only the postseismic process but also the pre-seismic signals indicating the occurrence of the giant earthquake.
Autonomous Coil Alignment System Using Fuzzy Steering Control for Electric Vehicles with Dynamic Wireless Charging

An autonomous coil alignment system (ACAS) using fuzzy steering control is proposed for vehicles with dynamic wireless charging. The misalignment between the power receiver coil and power transmitter coil is determined based on the voltage difference between two coils installed on the front-left/front-right of the power receiver coil and is corrected through autonomous steering using fuzzy control. The fuzzy control is chosen over other control methods for implementation in ACAS due to the nonlinear characteristic between voltage difference and lateral misalignment distance, as well as the imprecise and constantly varying voltage readings from sensors. The operational validity and feasibility of the ACAS are verified through simulation, where the vehicle equipped with ACAS is able to align with the power transmitter in the road majority of the time during operation, which also implies achieving better wireless power delivery.