Miracle-dz/UniFAR-FTUs huggingface dataset:
METRICS FOR IMAGE SURFACE APPROXIMATION BASED ON TRIANGULAR MESHES

Surface approximation plays an important role in several application fields, such as computer-aided design, computer graphics, remote sensing, computer vision, robotics, architecture, and manufacturing. A common problem present in these areas is to develop efficient methods for generating, processing, analyzing, and visualizing large amount of 3D data. Triangular meshes constitute a flexible representation of sampled points that are not regularly distributed in space, such that the model can be adaptively adjusted to the data density. The choice of metrics for building the triangular meshes is crucial to produce high quality models. This paper proposes and evaluates different measures to incrementally refine a Delaunay triangular mesh for image surface approximation until either a certain accuracy is obtained or a maximum number of iterations is achieved. Experiments on several data sets are performed to compare the quality of the resulting meshes.
Context Based Syntactic Opinion Mining

— E-commerce is evolving at such a rapid pace that new doors have been opened for users to have many opportunities to express their opinions about the product. The purpose of this project "Context Based Syntactic Opinion Mining" is to provide an effective way to view the opinions of the customers expressed in the form of customer reviews. This paper focus on aspect level opinion mining and proposes a new syntactic based approach using Natural Language Tool Kit (NLTK) and SentiWordNet. The objective of this paper is to summarize reviews of the product based on features or Aspects and classify as positive or negative opinion about a feature by assigning a score. This paper, mainly concentrates on reviews expressed about Mobile devices to extract the aspects but also applicable to other products. By analyzing the opinions of users about the features of a product, visual summary of the product can be made by plotting a graph based on score. It can also be extended to compare two mobile phone features and give an opportunity for the user to select the best among two products. This enables a user to have better understanding of the product which otherwise involves reading through long textual reviews to form a mental picture of the strengths and weaknesses of the product. This will be very useful for the customers to know about the features of product before making a buying decision. This project not only helps individuals in buying a product but also helps the organization to know how customers’ perceive their product.
Modular Software Architecture for Connected Devices The Development of a Model for Connecting a Device to the Android Platform

The market is offering an increasing number of network connected devices and it is predicted that in the next decade a large number of electronic products will have network connectivity through which they will be monitored and maintained. Meanwhile the smartphone market is growing rapidly and the range of mobile applications provided is numerous. The challenge is to find a suitable modular way to connecting these products to PCs and mobile devices so that it is possible to access their information and to monitor/control them directly through these devices. Therefore the purpose of this research was to develop a software architectural model for connecting such devices, focusing on the modular characteristics of the architecture. An android application, Ship Detector, was developed with a connection to an AIS (Automatic Identification System) antenna that receives AIS signals from vessels and forwards them to the android application to be displayed to the mobile user. The study resulted in a model that could be used as a concept for developing similar applications. This model was demonstrated in a working prototype (Ship Detector) and presented with five diagram representations of the different perspectives of the application. Various challenges were encountered which are discussed further in the report.
On the Construction of Learning Trajectories of Children: The Case of Commensurate Fractions

Learning trajectories are presented of 2 fifth-grade children, Jason and Laura, who participated in the teaching experiment, Children's Construction of the Rational Numbers of Arithmetic. 5 teaching episodes were held with the 2 children, October 15 and November 1, 8, 15, and 22. During the fourth grade, the 2 children demonstrated distinctly different partitioning schemes-the equi-partitioning scheme (Jason) and the simultaneous partitioning scheme (Laura). At the outset of the children's fifth grade, it was hypothesized that the differences in the 2 schemes would be manifest in the children's production of fractions commensurate with a given fraction. During the October 15 teaching episode, Jason independently produced how much 3/4 of 1/4 of a stick was of the whole stick as a novelty, and it was inferred that he engaged in recursive partitioning operations. An analogous inference could not be made for Laura. The primary difference in the 2 children during the teaching episodes was Laura's dependency on Jason's independent explanations or actions to engage in the actions that were needed for her to be successful in explaining why a fraction such as 1/3 was commensurate to, say, 4/12.
Diamond Films for Implantable Electrodes

Diamond is a promising material for implantable electrodes due to its unique properties. The aim of this work is to investigate the growth of boron-doped nanocrystalline diamond (B-NCD) films by plasma-enhanced microwave chemical vapor deposition at various temperatures, and to propose optimal diamond growth conditions for implantable electrodes. We have investigated the temperature dependence (450 °C–820 °C) of boron incorporation, surface morphology and growth rate on a polished quartz plate. Surface morphology and thickness were examined by atomic force microscopy (AFM). The quality of the films in terms of diamond and non-diamond phase of carbon was investigated by Raman spectroscopy. AFM imaging showed that the size of the grains was determined mainly by the thickness of the films, and varied from an average size of 40 nm in the lowest temperature sample to an average size of 150 nm in the sample prepared at the highest temperature. The surface roughness of the measured samples varied between 10 (495 °C) and 25 nm (800 °C). The growth rate of the sample increased with temperature. We found that the level of boron doping was strongly dependent on temperature during deposition. An optimal B-NCD sample was prepared at 595 °C.
Seasonal mass transfer on the nucleus of comet 67P/Chuyumov–Gerasimenko

We collect observational evidence that supports the scheme of mass transfer on the nucleus of comet 67P/Churyumov-Gerasimenko. The obliquity of the rotation axis of 67P causes strong seasonal variations. During perihelion the southern hemisphere is four times more active than the north. Northern territories are widely covered by granular material that indicates back fall originating from the active south. Decimetre sized chunks contain water ice and their trajectories are influenced by an anti-solar force instigated by sublimation. OSIRIS observations suggest that up to 20 per cent of the particles directly return to the nucleus surface taking several hours of travel time. The back fall covered northern areas are active if illuminated but produce mainly water vapour. The decimetre chunks from the nucleus surface are too small to contain more volatile compounds such as CO 2 or CO. This causes a north-south dichotomy of the composition measurements in the coma. Active particles are trapped in the gravitational minimum of Hapi during northern winter. They are ‘shock frozen’ and only re-activated when the comet approaches the sun after its aphelion passage. The insolation of the big cavity is enhanced by self-heating, i. e. reflection and IR radiation from the walls. This, together with the pristinity of the active back fall, explains the early observed activity of the Hapi region. Sobek may be a role model for the consolidated bottom of Hapi. Mass transfer in the case of 67P strongly influences the evolution of the nucleus and the interpretation of coma measurements.
Regional Matching Frictions and Aggregate Unemployment

This study demonstrates that a stochastic frontier approach applied to regional level data offers a convenient and interesting method to examine how regional differences in matching efficiency and structural factors contribute to aggregate unemployment. The study reveals notable and temporally stable differences in matching efficiency across travel-to-work areas in Finland. If all areas were as efficient as the most efficient one, the number of hirings would increase by about 40 per cent. This would reduce the aggregate unemployment rate from the current 8.5 per cent level to 6.0 per cent. If all the areas shared the same structural characteristics as the most favourable area, the aggregate unemployment rate would drop to 7.1 per cent.
Using measurements of the cosmic bulk flow to constrain $f(R)$ Gravity

As an alternate explanation for the cosmic acceleration, f(R) theories of gravity can predict an almost identical expansion history to standard λ cold dark matter (λCDM), yet make very different predictions for the growth of cosmological structures. Measurements of the cosmic bulk flow provide a method for determining the strength of gravity over the history of structure formation. We use the modified gravity N-body code ECOSMOG to simulate dark matter particles and make predictions for the bulk flow magnitude in both λCDM and f(R) gravity. With the peculiar velocities output by ECOSMOG, we determine the bulk flow at depths ranging from 20 to 50 hMpc, following the redshift and sky distribution of the 2MASS Tully-Fisher survey (2MTF). At each depth, we find that the λCDM and fR0 = 10 simulations produce bulk flow measurements that are consistent with λCDM predictions and the 2MTF survey at a 1σ level. We also find that adopting an f(R) strength of fR0 = 10 predict a much larger value for the bulk flow, which disagree with λCDM predictions at all depths considered. We conclude that fR0 must be constrained to a level no greater than 10 to agree with bulk flow measurements.
Radio continuum spectra of gigahertz-peaked spectrum galaxies

Context. Recent studies have shown that a remarkable share of quasars classified in the literature as gigahertz-peaked spectrum (GPS) sources and high frequency peakers (HFPs) are actually flaring flat-spectrum sources or blazars. Thus, at least among the quasar-type samples, genuine GPS sources and HFPs seem to be rare. Aims. We have studied variability and the shape of the radio continuum spectra of a sample of 96 galaxy-type GPS sources and HFPs in order to find out whether there is a similar contamination in the galaxy-type samples. Methods. We collected radio data for the sample from the literature, our long-term monitoring campaigns, and recent observations, and then plotted the radio continuum spectra. We also calculated the peak frequencies, the spectral indices, and the variability indices, and finally classified the sources according to these parameters. Results. About 30% of the galaxies in our sample are clearly GPS sources, for another ∼30% there are not enough data for a solid classification, and the rest are flat- or steep-spectrum sources. Conclusions. The galaxy-type GPS samples seem to be cleaner than the quasar-type, but there is also a remarkable contamination of other source types among the galaxies. However, there may be a strong selection effect, originating from the different selection criteria of the original samples, which must be taken into consideration when comparing the results of this and our previous study. Both simultaneous spectra and long-term monitoring are essential when classifying convex-spectrum sources. However, even monitoring for several years may not reveal the variable nature of a source with a convex radio spectrum.
in vitro Antidiabetic Properties of the Fruits and Leaves of Terminalia bellirica

Terminalia bellirica is a traditionally used medicinal plant claimed to possess antioxidant, antidiabetic and anti-inflammatory activity. The present study was conducted to evaluate the in vitro antidiabetic activity of the fruits and leaves of Terminalia bellirica. The in vitro alpha amylase and alpha glucosidase activity of different extracts of Terminalia bellirica was also determined. From the results, it is clear that the acetone extract of both the fruits and leaves of Terminalia bellirica shows strong inhibitory activity against alpha amylase and the aqueous extract of fruits and leaves of Terminalia bellirica were found to exhibit highest alpha glucosidase activity. The results obtained in the present study indicated that the Terminalia bellirica could be used for treating diabetes mellitus. Key words : Terminalia bellirica, antidiabetic, alpha amylase, alpha glucosidase.
REDE CAN AUTOMOTIVA – PERSPECTIVAS GERAIS E VULNERABILIDADES

The creation of a data transmission system to control the automotive electronic architecture is initially motivated to simplify cabling without compromising system reliability and security. Therefore, the objective of this work is to present the main aspects of the network Controller Area Network (CAN), such as historical context, transmission protocols and detailing of this process. As well as raise evaluate security issues and CAN network vulnerability.
Comment on the paper "Preserves of eigenvalue inclusion sets of matrix products"

In [3], Theorem 2.1 deals with characterization of mappings φ:Mn → Mn which satisfies Oε φ A φ B = Oε AB , where Oε A , ε ∈ 0,1 , denotes Ostrowski set ofA. In the proof of this theorem an assertion was made (assertion 2.6) whose proof contains an error. In this paper an example is provided to substantiate our claim and the error also has been rectified.
Expanding Indications of Imaging with Optovue Optical Coherence Tomography in Children

Although interest in optical coherence tomography (OCT) has increased markedly during the past decade in many fields of ophthalmology, there are only a few reports of the use of spectral domain (SD)-OCT in paediatric ophthalmology. In this article, the authors describe the use of SD-OCT in children as a new indication for OCT. Paediatric patients with aniridia were examined for the presence of keratopaty, cataract, glaucoma and foveal hypoplasia. Children with cataracts were followed for six months after surgery. The type of cataract, intraocular lens position, posterior capsule opacity and corneal incision healing were visualised by SD-OCT. In total, 24 eyes with aniridia and seven eyes with congenital cataract were enrolled. OCT was able successfully to detect ocular conditions associated with aniridia. After cataract extraction, OCT was also used to follow corneal incision healing and the development of posterior capsule opacity. In children with aniridia and congenital cataract, OCT can provide clinically relevant information. With the introduction of new generation, high-speed OCT, paediatric ophthalmology is likely to become a new and interesting target for OCT.
Dirac-Weyl points’ manipulation using linear polarised laser field in Floquet crystals for various Graphene superlattices

We investigate the changes in the energy spectrum of the graphene monolayer subjected to linear polarised laser beam and external periodically modulated static field (electric and magnetic). Floquet theory and the resonance approximation are used to analyse the energy spectrum and, in particular, the creation and the destruction of the Dirac-Weyl points. We found that at certain conditions the graphene is transformed into the two-dimensional Weyl metals, where each of the two original graphene Dirac cones is split into pairs of the Weyl cones. We also show that altering the laser’s beam incidence(tilting) angle may lead to appearing and disappearing of the pairs of Weyl points, the opening gap in the spectrum, and its efficient manipulation.
A 5200‐year record of freshwater availability for regions in western North America fed by high‐elevation runoff

Shrinking glaciers and snowpacks are reducing discharge in rivers that drain the central Rocky Mountain region – water that supports downstream societies and ecosystems of western North America. However, a new 5200‐year record of Lake Athabasca water‐level variations, which serves as a sensitive gauge of past changes in alpine‐sourced river discharge, reveals that western Canadian society has developed during a rare period of unusually abundant water ‘subsidized’ by prior glacier expansion. As the ‘alpine water tap’ closes, much drier times are ahead. Future water availability is likely to become similar to the mid‐Holocene when Lake Athabasca dropped 2–4 m below the twentieth‐century mean. Regions dependent on high‐elevation runoff (i.e., western North America) must prepare to cope with impending water scarcity of magnitude not yet experienced since European settlement.
Services provided to the society in Poland in the framework of cause related marketing

Services are provided by different entities for the benefit of society, among which the largest group is constituted by non-governmental organizations. They are funded from different source, inter alia, one possibility is to use the concept of Cause Related Marketing. It assumes a collaborative partnership with the commercial organization whose aim is to engage in solving social problems. The purpose of this article is to explore the concept of Cause Related Marketing in contexts of social services, based on programs Cause Related Marketing conducted in Poland. This article uses the method of critical analysis of the literature. Additionally four Cause Related Marketing programs which were carried out in Poland are thoroughly analysed. The analysis showed, that Cause Related Marketing is a tool through which NGOs can obtain financial resources for the implementation of its statutory objectives. Through the cooperation of enterprises with non-profit organizations it is possible to offer and to provide a variety of services to the public.
ASSESSING READING COMPREHENSION STRATEGIES UNDER THREE LEARNING CONDITIONS

The purpose of this study was to measure reading comprehension strategies when Tell Me More and Sweet English software were utilized to enhance the traditional reading comprehension practice. The study focused on evaluation of four strategies (i.e., scanning, skimming, inferencing and headline guessing) in reading comprehension in three different classes at an English language Institute in Iran. In addition, the study reported the relationship between learner attitudes and learner perceptions toward the use of the software. To do so, one hundred and twenty students studying at Jam-e-Jam Institute in Tehran were selected. In the first step, CELT was administered and among 83 participants who were found to be homogeneous, sixty were selected and assigned randomly to three groups of 20, one as the two experimental groups and the other as the control group. In the second step, subjects in both experimental and control groups were tested on a researcher-prepared reading comprehension test as a pretest in the first session. In the following 12 sessions, the treatment was administered to the participants. At the end of the semester, the subjects in all three groups were given the same test of the pre-test as post test. The test result showed that CALL groups (the experimental groups) surpassed slightly the control group. The use of Tell Me More produced a significant difference in learners' inferencing and scanning but not skimming and headline guessing as compared to Sweet English. The result of survey indicated an overall positive attitude toward Tell Me More. A significant correlation was reported between student attitudes and student perception.
Neodymium-Doped with Anatase and Brookite Two Phases: Mechanism for Photocatalytic Activity Enhancement under Visible Light and the Role of Electron

Titanium dioxide () doped with neodymium (Nd), one rare earth element, has been synthesized by a sol-gel method for the photocatalytic degradation of rhodamine-B under visible light. The prepared samples are characterized by X-ray diffractometer, Raman spectroscopy, UV-Vis diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, and Brunauer-Emmett-Teller measurement. The results indicate that the prepared samples have anatase and brookite phases. Additionally, Nd as Nd3
Equity Capital-Structure-Based Evaluation Method

Abstract The main purpose of this paper is to theoretically compare three structural models presenting several similarities and using financial statements within the context of real options theory. The models are those suggested by i) Leland (1994); ii) Goldstein, Ju and Leland (2001) and iii) Sarkar and Zapatero (2003). The analysis emphasizes convergence conditions of the three models based on their respective dynamic equations. The results show that the first two models represent special cases of the third one. The paper also presents a new equity and debt valuation method. Keywords: Structural model, Financial statement, Equity, EBIT, Mean reversion, Contingent claim, Convergence.
A Model-Adaptive Universal Data Compression Architecture with Applications to Image Compression by

In this thesis, I designed and implemented a model-adaptive data compression system for the compression of image data. The system is a realization and extension of the Model-Quantizer-Code-Separation Architecture for universal data compression which uses Low-Density-Parity-Check Codes for encoding and probabilistic graphical models and message-passing algorithms for decoding. We implement a lossless bi-level image data compressor as well as a lossy greyscale image compressor and explain how these compressors can rapidly adapt to changes in source models. We then show using these implementations that Restricted Boltzmann Machines are an effective source model for compressing image data compared to other compression methods by comparing compression performance using these source models on various image datasets. Thesis Supervisor: Gregory W. Wornell Title: Professor of Electrical Engineering and Computer Science
An ecological implication of glandular trichome-sequestered artemisinin: as a sink of biotic/abiotic stress-triggered singlet oxygen

A rtemisinin is accumulate d in wormwood ( Artemisia annua ) with uncertain ecological implications . Here , we suggest that artemisinin is generate d in response to biotic / abiotic stress , during which dihydroartemisinic acid , a direct artemisinin precursor , quenche s singlet oxygen ( 1 O 2 ), one kind of reactive oxygen species. Evidence supporting artemisinin as a sink of 1 O 2 emerges from that volatile isoprenoids protect plants from biotic/abiotic stress; biotic/abiotic stress induces artemisinin biosynthesis ; and stress signaling pathways are involved in the biosynthesis of volatile isoprenoids among plants a s well as the biosynthesis of artemisinin in A. annua . In this review, we address the ecological implication of glandular trichome-sequestered artemisinin as a sink sink of biotic/abiotic stress-triggered 1 O 2 , and also summarize the cumulating data on the transcriptomic and metabolic profiling of stress-enhanced artemisinin production upon eliciting 1 O 2 omission from chloroplasts and initiating retrograde 1 O 2 signaling from chloroplasts to nuclei .