Miracle-dz/UniFAR-FTUs huggingface dataset:
An Improved Social Networks Security Based on Semantic-Based Friend Recommendation

- In this paper, we have presented a literature review of the modern friend recommendation services. Existing social networking services recommend friends to users based on their social graphs, which may not be the most appropriate to reflect a user’s preferences on friend selection in real life. In this paper, we present Friendbook, a novel semantic-based friend recommendation system for social networks, which recommends friends to users based on their life styles instead of social graphs. By taking advantage of sensor rich Smartphone, Friendbook discovers life styles of users from user-centric sensor data, measures the similarity of life styles between users, and recommends friends to users if their life styles have high similarity. Inspired by text mining, we model a user’s daily life as life documents, from which his/her life styles are extracted by using the Latent Dirichlet Allocation algorithm. We further propose a similarity metric to measure the similarity of life styles between users, and calculate users’ impact in terms of life styles with a friend matching graph. Upon receiving a request, Friendbook returns a list of people with highest recommendation scores to the query user. Finally, Friendbook integrates a feedback mechanism to further improve the recommendation accuracy. Here a semantic based friend recommendation is done based on the users’ life styles. By using text mining, we display a user's everyday life as life archives, from which his/her ways of life are separated by using the Latent Dirichlet Allocation algorithm. At that point we discover a similarity metric to quantify the similarity of life styles between users, and as certain users’ effect as far as ways of life with a similarity matching diagram. At last, we incorporate a feedback component to further enhance the proposal precision.
Wired together: collaborative problem-based language learning in an online forum.

A descriptive study was conducted on the use of a collaborative Problem-Based Learning activity in an undergraduate ESL course on language and Information Technology in a Malaysian university. An asynchronous online conferencing forum was set up as the medium of interaction for the students to engage in the activity over a period of three weeks. The findings show that the PBL activity offered both linguistic and affective benefits in the ESL class. It stimulated communication and generated substantial discussion on a variety of topics, resulting in the use of English for academic and social interaction. It raised the students’ awareness of a real audience for the language task they were working on and provided a meaningful context within which language learning, including the exploration of grammatical rules, took place. The PBL activity also promoted self-directed learning and a sense of ownership of the learning activities which are important to the development of learner autonomy. The online domain was found to enhance both the PBL process itself and the benefits it offered to language learning. The accessibility and asynchronicity of the forum encouraged and eased interaction, and provided a space for the maintenance of group spirit and participation of more timid students. The challenges faced by ESL teachers in using such a PBL approach include the need to be facilitators more than instructors, and to ensure that the interaction among the students is in English.
The molecular gas in Luminous Infrared Galaxies I: CO lines, extreme physical conditions, and their drivers

We report results from a large molecular line survey of luminous infrared galaxies (L-IR greater than or similar to 10(11) L-circle dot) in the local Universe (z less than or similar to 0.1), conducted during the last decade with the James Clerk Maxwell Telescope and the IRAM 30-m telescope. This work presents the CO and 13CO line data for 36 galaxies, further augmented by multi-J total CO line luminosities available for other infrared (IR) bright galaxies from the literature. This yields a combined sample of N = 70 galaxies with the star formation (SF) powered fraction of their IR luminosities spanning L-IR((+))similar to(10(10)-2 x10(12))L-circle dot and a wide range of morphologies. Simple comparisons of their available CO spectral line energy distributions (SLEDs) with local ones, as well as radiative transfer models, discern a surprisingly wide range of average interstellar medium (ISM) conditions, with most of the surprises found in the high-excitation regime. These take the form of global CO SLEDs dominated by a very warm (T-kin greater than or similar to 100 K) and dense (n >= 10(4) cm(-3)) gas phase, involving galaxy-sized (similar to(few) x 10(9) M-circle dot) gas mass reservoirs under conditions that are typically found only for similar to(13) per cent of mass per typical SF molecular cloud in the Galaxy. Furthermore, some of the highest excitation CO SLEDs are found in ultraluminous infrared galaxies (ULIRGs; L-IR >= 10(12)L(circle dot)) and surpass even those found solely in compact SF-powered hot spots in Galactic molecular clouds. Strong supersonic turbulence and high cosmic ray energy densities rather than far-ultraviolet/optical photons or supernova remnant induced shocks from individual SF sites can globally warm the large amounts of dense gas found in these merger-driven starbursts and easily power their extraordinary CO line excitation. This exciting possibility can now be systematically investigated with Herschel and the Atacama Large Milimeter Array (ALMA). As expected for an IR-selected (and thus SF rate selected) galaxy sample, only few cold CO SLEDs are found, and for fewer still a cold low/moderate-density and gravitationally bound state (i.e. Galactic type) emerges as the most likely one. The rest remain compatible with a warm and gravitationally unbound low-density phase often found in ULIRGs. Such degeneracies, prominent when only the low-J SLED segment (J = 10, 21 and 32) is available, advise against using its CO line ratios and the so-called X-co = M(H-2)/L-co(10) factor as SF mode indicators, a practice that may have led to the misclassification of the ISM environments of IR-selected gas-rich discs in the distant Universe. Finally, we expect that the wide range of ISM conditions found among LIRGs will strongly impact the X-co factor, an issue we examine in detail in Paper II.
Cultural differences and postmerger problems: Misconceptions and cognitive simplifications.

This is a so-called personal version (author’s manuscript as accepted for publishing after the review process but prior to final layout and copyediting) of the article. Vaara, E. Cultural differences and postmerger problems: Misconceptions and cognitive simplifications. Nordic Organization Studies / Nordiske Organisasjonsstudier, 1999, 1(2), 59-88. Researchers are kindly asked to use the official publication in references.
A Hybrid Orthogonal Forward-Backward Pursuit Algorithm for Partial Fourier Multiple Measurement Vectors Problem

In solving the partial Fourier Multiple Measurement Vectors (FMMV) problem, existing greedy pursuit algorithms such as Simultaneous Orthogonal Matching Pursuit (SOMP), Simultaneous Subspace Pursuit (SSP), Hybrid Matching Pursuit (HMP), and Forward-Backward Pursuit (FBP) suffer from low recovery ability or need sparsity as a prior information. This paper combines SOMP and FBP to propose a Hybrid Orthogonal Forward-Backward Pursuit (HOFBP) algorithm. As an iterative algorithm, each iteration of HOFBP consists of two stages. In the first stage, α indices selected by SOMP are added to the support set. In the second stage, the support set is shrank by removing β indices. The choice of α and β is critical to the performance of this algorithm. The simulation results showed that, by using proper parameters, HOFBP has better performance than other greedy pursuit algorithms at the expense of more computing time in some cases. HOFBP does not need sparsity as a prior knowledge.
Do You Have Guts to Have Food

Developing countries face problems such as aging populations, inadequate food supply, and unbalanced diets. Different factors lead to a clinical pattern of diseases in various part of the world like racial and hereditary, climate, socio-financial condition, dietary habits and mode of living. The outline of gastrointestinal diseases in India differs remarkably from the western parts of the world because of dietary habits of Indian people. On one hand, the developed countries are fighting with diseases such as obesity, osteoporosis, cancer, diabetes, allergies and dental problems. The Asian countries population are hitching with issues such as intestinal ulcers, skin diseases, vector infections and much more. This varies from region to region also. Some of the diseases which are common in India are rarely seen in western countries and vice-versa. As a result, there is a market for new therapeutic medicine, nutrients production and consumption of these products. The role of these supplements in the daily diet is essential or decisive is still not known clearly due to the implausible literature and current approaches in research fields. The present review focuses on role of neutraceuticles on gut health.
IMPROVING THE PERFORMANCE OF NO-REFERENCE IMAGE QUALITY ASSESSMENT ALGORITHM FOR CONTRAST-DISTORTED IMAGES USING NATURAL SCENE STATISTICS

This study was conducted to explore the role of two color features in improving the performance of the existing No-Reference Image Quality Assessment Algorithms for Contrast-Distorted Images (NR-IQA-CDI). The used color features were Colorfulness and Naturalness of color expressed in CIELab and CIELuv color spaces. Test images used were the public benchmark databases that contain contrast-distorted images - TID2013, CID2013 and CSIQ. Experiments for the exploration were conducted in two stages: the preliminary stage and the comprehensive stage. The results of preliminary study showed that the features of colorfulness and naturalness of color can improve the prediction of human opinion score which relies mainly on the feature of brightness-only contrast. The results inspired to more comprehensive study where the Natural Scene Statistics (NSS) of these two features were estimated by modelling the probability distribution function (pdf) of 16,873 test images from a public database called SUN2012. The results based on k-fold cross validation with k ranging from 2 to 10 showed that the performance of NR-IQA-CDI can be improved by adding the NSS of these features.
Occurrence of Escherichia coli O157 in Some Marine Fishes and Shellfish Sold in Isfahan markets, Iran

1Department of Aquatic Animal Health and Diseases, Faculty of Veterinary Medicine, Food Hygiene Branch, Islamic Azad University, Shahrekord, Iran. 2Department of Food Hygiene , Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran 3Department of Microbiology, Faculty of Basic Sciences, Shahrekord, Iran, Shahrekord Branch, Islamic Azad University, Shahrekord-Iran
Turkish Norms of McNamara's Cephalometric Analysis

ABSTRACT Objective: (1) To establish cephalometric standards for the Turkish adult population, (2) to compare Turkish norms with the published standards of McNamara norms, and (3) to compare the assessment of craniofacial structure by extracranial and intracranial reference lines. Materials and Method: The main study sample consisted of 44 female and 29 male dental students aged between 19 and 29 years. All of the head films were taken in the natural head position, which was determined with 0.5-mm wire that was attached to a fluid level device to represent the true horizontal and a metal chain that was suspended in front of the cassette to check the true horizontal. Results: For men, N perp A and Pg N perp were significantly greater (p<0.001) in the Turkish population, whereas SNA (p<0.001), CoGn (p<0.001), CoA (p<0.001), upper incisal A vertical (p<0.05), and lower incisor A pg (p<0.05) were significantly smaller. In women, N perp A and Pg N perp were significantly greater (p<0.001) in the Turkish popula.
Extreme climatic event‐triggered overstorey vegetation loss increases understorey solar input regionally: primary and secondary ecological implications

1. Climate extremes such as drought can trigger large‐scale tree die‐off, reducing overstorey canopy and thereby increasing near‐ground solar radiation. This directly affects biotic and abiotic processes, including plant physiology, reproduction, phenology, soil evaporation and nutrient cycling, which themselves affect understory facilitation, productivity and diversity, and land surface–atmosphere fluxes of energy, carbon and water.
Effect of BioControl Agents on Leaf Rust of Wheat and Influence of Different Temperature and Humidity Levels on Their Colony Growth

Out of five bio-control agents viz., Verticillium lecanii, Paecilomyces fumosoroseus Beauveria bassiana, Cladosporium cladosporiodes and Metarrhizium anisopliae, the best combination for the reduction of leaf result pustule development was Verticillium sp. and Paecilomyces sp. and Verticillium sp. with Beauveria sp. Overall 80% relative humidity and 30°C favoured the maximum growth of the bio-control agents. No growth was observed at 45°C. Although there was an increase in colony diameter after 2nd week but the pattern of growth was the same as after one week of incubation of bio-control agents application. The growth of bio-control agents did not differ among themselves.
Gaseous Detector with Sub-keV Threshold to Study Neutrino Scattering at Low Recoil Energies

Gaseous detector with a sub-keV electron equivalent threshold is a very perspective tool for the precision measurement of the neutrino magnetic moment and for observing coherent scattering of neutrinos on nuclei. The progress in the development of low noise electronics makes it possible to register the rare events at the threshold less than 100 eV. The construction of the gaseous detector is given and the typical pulses with amplitudes of a few eV observed on a bench scale installation are presented. The possible implications for future experiments are discussed.
PLANT WATER RELATIONS AND DROUGHT ADAPTATIONS OF SCHIMA WALLICHII AT PHULCHOWKI HILL, NEPAL

In the central Himalaya, plants are subjected to a prolonged dry period, thus developing moisture stress. Variations in water relations and their response to drought in a Himalayan tree species, Schima wallichii at 1400 m elevation were studied at Phulchowki Hill, Kathmandu, Nepal. To understand the adaptational strategy of this species through which it withstands water stress, different parameters such as soil water potential at 15 (Y15) and 30 (Y30) cm depths, tree water potential at predawn (Ypd) and midday (Ymd), leaf conductance during morning (gw AM) and afternoon (gw PM) and correlation between all these variables were measured from December 1998 to April 2001, except during monsoon months. There was significant variation among months and years in Ypd, Ymd, AM and g wPM. Mean Ypd and Ymd were -0.20 and –0.63 MPa, respectively. The minimum Y value was observed in March 1999, after 4 months of unusually no rainfall. Some patterns of Ypd were related to phenology and leaf damage as Ypd often increased during leafing. Mean g w AM and g w PM were 95 and 75 m molm–2s–1, respectively. Schima wallichii maintained high Y, with low stomatal conductance reflecting its inherent dehydration postponement adaptation. Scientific World, Vol. 12, No. 12, September 2014, page 79-84
A class of combinatorial problems with polynomially solvable large scale set covering/partitioning relaxations

On introduit ici toute une classe de problemes combinatoires qui peuvent se formuler comme des problemes de recouvrement/partitionnement de tres grandes dimensions dont les relaxations continues ou bien sont solubles en temps polynomial par l'algorithme des ellipsoides, ou bien peuvent etre resolues de facon efficace par des techniques de programmation lineaire generalisee. On montre que cette classe contient non seulement des problemes combinatoires bien connus, mais aussi un certain nombre de problemes apparemment nouveaux et decrits ici pour la premiere fois
SimSphere model sensitivity analysis towards establishing its use for deriving key parameters characterising land surface interactions

Abstract. Being able to accurately estimate parameters characterising land surface interactions is currently a key scientific priority due to their central role in the Earth's global energy and water cycle. To this end, some approaches have been based on utilising the synergies between land surface models and Earth observation (EO) data to retrieve relevant parameters. One such model is SimSphere, the use of which is currently expanding, either as a stand-alone application or synergistically with EO data. The present study aimed at exploring the effect of changing the atmospheric sounding profile on the sensitivity of key variables predicted by this model assuming different probability distribution functions (PDFs) for its inputs/outputs. To satisfy this objective and to ensure consistency and comparability to analogous studies conducted previously on the model, a sophisticated, cutting-edge sensitivity analysis (SA) method adopting Bayesian theory was implemented on SimSphere. Our results did not show dramatic changes in the nature or ranking of influential model inputs in comparison to previous studies. Model outputs examined using SA were sensitive to a small number of the inputs; a significant amount of first-order interactions between the inputs was also found, suggesting strong model coherence. Results showed that the assumption of different PDFs for the model inputs/outputs did not have an important bearing on mapping the most responsive model inputs and interactions, but only the absolute SA measures. This study extends our understanding of SimSphere's structure and further establishes its coherence and correspondence to that of a natural system's behaviour. Consequently, the present work represents a significant step forward in the global efforts on SimSphere verification, especially those focusing on the development of global operational products from the model synergy with EO data.
The ASEAN Free Trade Agreement and Vietnam’s Trade Efficiency

This study employs a stochastic gravity model to estimate efficiency performance of Vietnam’s trade with its main trading partners from 1995–2015. Trade efficiency is measured as the ratio of actual trade volume to the maximum likelihood. Moreover, it analyzes the effects of both natural and man-made trade barriers on trade efficiency. The empirical results suggest that the actual trade of Vietnam appears to be much smaller than a possible efficiency level and that there is large space for further progress. Export efficiency outweighs that of import. Vietnam’s AFTA membership has in general improved the trade efficiency, whereas tariffs and domestic devaluation downgrade it. Our findings lead to the recommendation that Vietnam should join more Free Trade Agreements (FATs) and eradicate the man-made barriers.
Classification of Pre-Filtered Multichannel Remote Sensing Images

Multichannel remote sensing (RS) has gained popularity and has been successfully applied for solving numerous practical tasks as forestry, agriculture, hydrology, meteorology, ecology, urban area and pollution control, etc. (Chang, 2007). Using the term “multichannel”, we mean a wide set of imaging approaches and RS systems (complexes) including multifrequency and dual/multi polarization radar (Oliver & Quegan, 2004), multiand hyperspectral optical and infrared sensors. While for such radars the number of formed images is a few, the number of channels (components or sub-bands) in images can be tens, hundreds and even more than one thousand for optical/infrared imagers. TerraSAR-X is a good example of modern multichannel radar system; AVIRIS, HYDICE, HYPERION and others can serve as examples of modern hyperspectral imagers, both airborne and spaceborne (Landgrebe, 2002; Schowengerdt, 2007).
The boundary flux: New perspectives for membrane process design

The Boundary Flux: New Perspectives for Membrane Process Design Marco Stoller*, Javier Miguel Ochando Pulido, Benedetta de Caprariis, Nicola Verdone, Luca Di Palma, Angelo Chianese University of Rome “La Sapienza”, Dept. Of Chemical Materials Environmental Engineering, Via Eudossiana 18, 00184 Rome, Italy University of Granada, Dept. Of Chemical Engineering, Granada, Spain marco.stoller@uniroma1.it
Development of Circularly Polarized Array Antenna for Synthetic Aperture Radar Sensor Installed on UAV

We have developed an array antenna consisting of 12 elements of simple square-shaped, corner-truncated patches for circularly polarized synthetic aperture radar (CP-SAR) operated in the L-band. The corporate feed design concept is implemented by combining a split-T and a 3-way circular-sector-shape power divider to excite circularly polarized radiation. The fabricated antenna based on the simulation using moment method gives a good circular polarization at the center frequency of 1.27GHz with an impedance bandwidth of 6.1% and 3-dB axial ratio bandwidth of 1.0%, satisfying the speciflcation for our circularly polarized synthetic aperture radar intended for use onboard an unmanned aerial vehicle and a small satellite.
Spectroscopy of possible Hα emission stars in regions of high galactic latitude molecular clouds

We present mid-resolution spectroscopic observations of 63 faint (V =12-16) stars identified by Kun (1992) as Hα emission candidates in an objective prism survey of several high galactic latitude molecular clouds. Only 4 stars in our sample (6%) are bona fide T Tauri stars on the basis of their strong Li I absorption and Hα emission features. They have late M spectral types (M4–M5.5) and two of them form a visual binary with separation . The new T Tauris are associated with the L 134 molecular complex, the northernmost extension of the Scorpio – Ophiuchus star forming region, which has been traditionally considered as a non-star forming region. In the other high latitude clouds surveyed by Kun (1992), we have not found any T Tauri star in our follow-up spectroscopy. Most of the observed stars (~80%) are late type dwarfs without detectable Hα emission in our spectra. Eight stars are M-dwarfs with Hα in emission, but no detectable Li I λ 6708 absorption. They could be post T Tauri stars or older dMe stars; more data is necessary in order to establish their evolutionary status. Our results show that Kun (1992) was able to detect weak Hα emission lines (down to equivalent width of ~ 1.5 A) in faint stars near the plate magnitude limit (V ~16), but in many cases plate defects, absorption bands and/or overlying stars were taken as possible Hα emission. In this paper we correct Kun's previous indication that there may be numerous young stars associated to high latitude molecular clouds, and we severely constrain the presence of a population of T Tauri stars in these clouds. We note that none of our four T Tauri stars is located in an isolated translucent molecular cloud.
Thermal Spreading Resistance of Eccentric Heat Sources on Rectangular Flux Channels

A general solution, based on separation of variables method for thermal spreading resistances of eccentric heat sources on a rectangular flux channel is presented. Solutions are obtained for both isotropic and compound flux channels. The general solution can also be used to model any number of discrete heat sources on a compound or isotropic flux channel using superposition. Several special cases involving a single and multiple heat sources are presented.