Miracle-dz/UniFAR-FTUs huggingface dataset:
A review on user influence ranking factors in social networks

Social networks play a significant role in information sharing and have become an essential part of user's daily activities. Social networks help share users' ideas, views, status and opinions in the form of text, music and videos. The inherent difficulties involved in sharing the information is the sustenance of the values attached to the dependability of the functional blocks of the user - identity, sharing, conversation, relationship, presence, group and reputation. Review of social networks in terms of user influence ranking would throw light on the role of these functional blocks. The user influence ranking generally reveals the impact that an individual has on the social network. In the present scenario, the user influence ranking factors are not systematically determined. Instead, each social network adopts its own method to determine users' influence. Hence, the review has been done to identify the adoption of these functional blocks in popular social networks to determine users' influence ranking method.
Role of bcl-XL in the Control of Apoptosis in Murine Myeloma Cells 1

The development of an increasing number of tumors has been shown to involve the deregulation of not only cell proliferation but also normal cell death by apoptosis. Expression of the bcl-2 proto-oncogene has been shown to inhibit the apoptotic cell death of many types of cells. Recent work also has revealed the existence of several bcl-2-related genes that also can inhibit (e.g., bcl-X, and Mcl-J) or activate (e.g., box, bcl-Xs, bag, and bud) apoptosis in several systems. Myelomas are antibody-secreting tumor cells derived from terminally differentiated B lymphocytes, and previous work from our laboratory showed that murine SP2/0 myeloma cells and derived B-cell hybridomas were highly sensitive to apoptosis induction by a block of gene expression (cycloheximide). Additional work revealed that a related murine myeloma cell line, P3X63Ag8.6S3, was resistant to apoptosis induction in similar conditions. To understand the genetic basis of this differential susceptibility, we examined the expression of apoptosis-related genes in these cell lines. Northern blot experiments showed no significant difference in the expression of myc and box apoptosis-promoting genes in susceptible (SP2/0 and D5) and resistant (P3X63) cell lines. Also, no significant expression of the bcl-2 gene could be detected in these cell lines. However, a much higher expression level of bcl-X, mRNA was observed in apoptosis-resistant P3X63Ag8.653 cells. The role of bcl-X, was supported by the finding that expression of bcl-X, cDNA in transfected, apoptosis-sensitive D5 cells increased the viability of these cells greatly and reduced DNA fragmentation following apoptosis induc tion. Significant bcl-X, but not bcl-2 expression was also detected in three other murine myeloma cell lines (MOPC 315, RPC 5.4, and J558) derived from different plasmacytoma tumors. These results indicate a predomi nant role of bcl-X, in preventing apoptosis in myeloma cells and suggest that the expression of bcl-2 or bcl-XL genes in B-cell tumors depends on the differentiation stage of the precursor normal cell.
Investigation and improvement of a novel double-working-electrode electrochemical system for organic matter treatment from high-salinity wastewater

ABSTRACT The novel double-working-electrode electrochemical system with air diffusion cathode (ADC) and Ti/SnO2-Sb anode (TSSA) has shown higher efficiency and lower energy consumption for the degradation of organic pollutant from high-salinity wastewater, compared to the traditional single anode system. To further investigate and improve this system, in this work, firstly the effect of vital factors of the double-working-electrode electrochemical system including initial methyl orange (MO) concentration, NaCl concentration and initial pH value of organic solution were investigated, using MO as the targeted organic pollutant, carbon black ADC (CBAC) as cathode and stainless steel mesh electrode (SSME) as control. Besides, for the further improvement of removal performance, a novel home-made activated carbon-ADC (ACAC) was studied as cathode with the same investigation process. The results showed that, in the experiments studying the effect of both initial MO and NaCl concentrations, the removal performance was in the order of TSSA-ACAC > TSSA-CBAC > TSSA-SSME in all conditions of initial MO and NaCl concentrations. However, with the pH value reduced from 6.0 to 3.0, the performances of three systems turned to be much closer to each other. Besides, ACAC played a synergistic role in MO removal by greatly improving the MO removal performance and enhancing its adaptability to the reactor parametric variation. ACAC created a weak acidic environment for accelerating the indirect electro-oxidation of MO on TSSA. The MO degradation pathways in the three systems were the same but the TSSA-ACAC system gave a higher degradation kinetics order.
Dental implant design--effect on bone remodeling.

Bone remodeling around three different endosseous dental implant designs placed in dog mandibles was studied using radiography during lengthy periods of function and by histology after animal sacrifice. The three designs investigated were (a) threaded (c.p. titanium), (b) fully porous-coated (titanium alloy), and (c) partially porous-coated (titanium alloy). The implants were kept in function for either 32 weeks (fully porous-coated) or 73 to 77 weeks (partially porous-coated and threaded). The studies indicated that some crestal bone loss occurred for both the threaded and partially porous-coated implants while no significant bone loss was seen with fully porous-coated implants in the absence of plaque-associated infection. It is suggested that these observed differences are a result of the different stress states that develop in bone surrounding the three designs underlying the importance of implant design on bone remodeling.
The evolving conception of literacy in REFLECT

• Summary There are fundamental links between literacy and power which frame the REFLECT approach as it has evolved since 1993, linking the literacy process to a wider, povertyfocused and rights-based approach to development and change. This article attempts to explore our evolving conception of literacy and the ways in which literacy is related to power.
Better Days – A randomized controlled trial of an internet-based positive psychology intervention

The internet seems promising for delivering interventions to enhance well-being in a normal population. The aim of this study was to test the effects of an internet-based positive psychology intervention targeting gratitude, pleasant activities, strengths, mastery, acts of kindness, optimism, flow, attributions, and mindfulness. One-hundred and twelve participants were randomized to the intervention and 94 to the control group, and data were collected at baseline, one, two, and six months after intervention onset. The balance of positive to negative affect increased over time among participants in the intervention group (unstandardized beta coefficient [B] = 0.07, p < 0.01), as compared to the controls (B = 0.02, p = 010). The intervention worked equally well regardless of participants’ gender, age, or education. However, optimism did not mediate the effect of the intervention on affect balance. In conclusion, the intervention had a small, but significant effect on affect balance among healthy adults.
Geography of Methodological Issues in Research with Children

Over the past decade, there has been an increasing interest in the methodologies used in research with children. Geographers have contributed to the growing body of research that highlights that children are not simply passive objects dependent on adults, but are competent social actors that make sense of and actively contribute to their environment. The growing trend to conceptualize children as social actors has profound implications for geographical research with children, most notably the development of more `inclusive' and participatory research agendas and children-centred methodologies. In this article, we draw upon two ongoing postgraduate research projects with children to discuss our experiences of adopting such innovative children-centred research practices and methodologies. In particular, we focus upon the contribution that a specifically geographical approach can make to the wider interdisciplinary debates about children-centred research. Therefore, we discuss the importance of recognizing the spatiality of research with children, and highlight the significance of the geography of methodological issues, by exploring the significance of both the spaces in which we conduct our research, and the spaces at the centre of our research. We also discuss issues concerning the representation of children in the process of dissemination.
p14ARF Activates a Tip60-Dependent and p53-Independent ATM/ATR/CHK Pathway in Response to Genotoxic Stress

ABSTRACT p14ARF is a tumor suppressor that controls a well-described p53/Mdm2-dependent checkpoint in response to oncogenic signals. Here, new insights into the tumor-suppressive function of p14ARF are provided. We previously showed that p14ARF can induce a p53-independent G2 cell cycle arrest. In this study, we demonstrate that the activation of ATM/ATR/CHK signaling pathways contributes to this G2 checkpoint and highlight the interrelated roles of p14ARF and the Tip60 protein in the initiation of this DNA damage-signaling cascade. We show that Tip60 is a new direct p14ARF binding partner and that its expression is upregulated and required for ATM/CHK2 activation in response to p14ARF. Strikingly, both p14ARF and Tip60 products accumulate following a cell treatment with alkylating agents and are absolutely required for ATM/CHK2 activation in this setting. Moreover, and consistent with p14ARF being a determinant of CHK2 phosphorylation in lung carcinogenesis, a strong correlation between p14ARF and phospho-CHK2 (Thr68) protein expression is observed in human lung tumors (P < 0.00006). Overall, these data point to a novel regulatory pathway that mediates the p53-independent negative-cell-growth control of p14ARF. Inactivation of this pathway is likely to contribute to lung carcinogenesis.
An Improved Structured and Progressive Electronic Dictionary for the Arabic Language: iSPEDAL

In this article, we propose an improved structured and progressive electronic dictionary for the Arabic language (iSPEDAL) which can be presented in the form of a relational database or in the form of an XML document which can be easily exploitable using suitable query languages. Indeed, many Arabic dictionaries are found but are not structured and not directly exploitable since they are in flat textual files form. iSPEDAL doesn’t contain any duplicated data (roots, prefixes, suffixes, the infixes, the patterns and the derived words). Moreover, for a given word, it provides links to its root, to their associated affixes, and to its patterns. iSPEDAL is supplied automatically from one or several traditional textual dictionaries and is enriched permanently with any Arabic textual corpus using system that we built. This system is composed of a Parser, a Selector, a Classifier, an Extractor, a Comparator, an Analyzer, and a Validator. The Parser allows the transformation of a textual source (dictionary or textual corpus) into a set of words. The Selector determines if a word is new or already exists in iSPEDAL. The Classifier allows to classify a given word and to add it to iSPEDAL as a root or as a derived word. The Extractor uses the Arabic extraction method to deduce the root of all words arriving to this component without their root or any indication about their root. The Comparator permits to avoid duplication of roots, affixes or patterns in iSPEDAL. The Analyzer allows the extraction of the affixes and the pattern from a derived word and of its root. The Validator can validate the information (word, root, patterns, and affixes) before adding to iSPEDAL database. This dictionary can be used to evaluate the information extraction methods from an Arabic document, given that; the vocabulary of the Arabic language is essentially built from the roots.
Evaluating Resource Discovery Protocols for Hierarchical and Super-Peer Grid Information Systems

Most currently deployed grids adopt a hierarchical model for their information system. However, nowadays the research and development community is heading towards the use of scalable models of information services based on decentralized approaches such as the peer-to-peer paradigm. This is mainly due to the poor scalability, resiliency and load-balancing features of the hierarchical model. This paper evaluates a resource discovery protocol exploitable in a hierarchical grid and compares it with a super-peer based model which has recently been introduced. Performance analysis, carried out through simulation, shows that the hierarchical model is valuable for small and medium sized grids, while the super-peer model is better suited for very large grids
Effects of dissolved organic matter from a eutrophic lake on the freely dissolved concentrations of emerging organic contaminants

The authors studied the effects of dissolved organic matter (DOM) on the bioavailability of bisphenol A (BPA) and chloramphenicol by measuring the freely dissolved concentrations of the contaminants in solutions containing DOM that had been isolated from a mesocosm in a eutrophic lake. The abundance and aromaticity of the chromophoric DOM increased over the 25‐d mesocosm experiment. The BPA freely dissolved concentration was 72.3% lower and the chloramphenicol freely dissolved concentration was 56.2% lower using DOM collected on day 25 than using DOM collected on day 1 of the mesocosm experiment. The freely dissolved concentrations negatively correlated with the ultraviolent absorption coefficient at 254 nm and positively correlated with the spectral slope of chromophoric DOM, suggesting that the bioavailability of these emerging organic contaminants depends on the characteristics of the DOM present. The DOM–water partition coefficients (log KOC) for the emerging organic contaminants positively correlated with the aromaticity of the DOM, measured as humic acid–like fluorescent components C1 (excitation/emission = 250[313]/412 nm) and C2 (excitation/emission = 268[379]/456 nm). The authors conclude that the bioavailability of emerging organic contaminants in eutrophic lakes can be affected by changes in the DOM. Environ Toxicol Chem 2014;33:1739–1746. © 2014 SETAC
Chiapas: cambio social, migración y curso de vida

Given the recent increase in migration from Chiapas to the U.S., this paper analyzes the factors that prevented Chiapas residents from being incorporated into the migration flows of the early 20th century. To this end, it analyzes Chiapas’ social structure and historical dialectic; this analysis is enhanced by the life course approach, which has the advantage of revealing the intersection of the time of the individual and the time of social change. From this perspective, understanding the dynamics of Chiapas migration goes beyond a purely economic approach.
The quantification of citral in lemongrass and lemon oils by near‐infrared spectroscopy

Previous work has demonstrated the capability of near‐infrared (NIR) spectroscopy to determine the cineole content (not less than 70% w/w) of eucalyptus oil with an accuracy comparable with that of the British Pharmacopoeia (BP) assay method. The aim of the present study was to determine if the same method was capable of quantifying other chemical constituents at similar levels in essential oils and also to ascertain if NIR spectroscopy can accurately quantify compounds present at much lower levels in essential oils. Lemongrass oil contains citral at concentrations of approximately 65–85% w/w, and lemon oil contains citral at a concentration of approximately 2–5% w/w. A total of 26 samples of pure lemongrass oil and 35 samples of pure lemon oil (both including samples that were “spiked” with citral to increase the calibration range) were scanned on the FOSS NIRSystems 6500 Rapid Content Sampler using a reflectance vessel as sample presentation method. The reference method for both types of oil was the BP monograph titration assay for the citral content of lemon oil and calibrations were constructed using these reference data. For the lemongrass oils, the mean accuracy was found to be 1.00% or less and the mean bias was 0.09% or less. For the lemon oils, the mean accuracy was found to be 4.28% or less and the mean bias was −0.71% or less. The NIR method developed was rapid, simple and non‐destructive and may prove beneficial for the accurate determination of the citral content of lemongrass oils and for the approximate citral content of lemon oils.
The Rise and Fall of Social Problems: A Public Arenas Model

This paper develops a model of the process through which social problems rise and fall. Treating public attention as a scarce resource, the model emphasizes competition and selection in the media and other arenas of public discourse. Linkages among public arenas produce feedback that drives the growth of social problems. Growth is constrained by the finite "carrying capacities" of public arenas, by competition, and by the need for sustained drama. The tension between the constraints and forces for growth produces successive waves of problem definitions, as problems and those who promote them compete to enter and to remain on the public agenda. Suggestions for empirical tests of the model are specified.
An improved control method for PWM current source rectifier with active damping function

The pulse width modulation (PWM) current source rectifier requires an LC filter to filter out the line current harmonics and to assist the commutation of switching devices, however, the use of the filter may affect the input power factor and cause LC resonances as well. In order to overcome the two drawbacks the LC filter brings, an improved control method for PWM current source rectifier with active damping function is proposed in this paper. The proposed power factor control method is based on the source voltage oriented d-q rotating frame, which is parameters insensitive and can make the rectifier get the maximum achievable power factor. Meanwhile, in order to suppress the LC resonance and to reduce the line current total harmonic distortion (THD) without the physical damping resistor, the active damping technique is adopted, which is realized together with the power factor control, directly through detecting the capacitor voltage. All these analyses and the effectiveness of the control method are firstly demonstrated by simulation results, and are verified further in a 5kVA laboratory prototype.
The flipped classroom

Compared with a traditional teaching framework where students attend a lecture, tutorial or seminar, and the learning comes during and after the teaching, the fl ipped classroom turns this round so that most learning comes fi rst, allowing the teaching session to refl ect on the material and build on prior learning. The articles reviewed below highlight how the fl ippedclassroom approach , although potentially a very powerful method of learning, requires further evidence to confi rm its effectiveness.
Thermal Residual Stress Relaxation and Distortion in Surface Enhanced Gas Turbine Engine Components

Compressive residual stresses are often deliberately induced in the surfaces of turbine engine components, using a variety of surface enhancement methods, to improve fatigue life. Thermal stress relaxation can occur in both the Ti and Ni alloys used in compressor and turbine stages. Nonuniform relaxation of the compressive layer can cause distortion of the critical aerodynamic shapes of thin blades, potentially effecting engine performance. A detailed study of the thermal relaxation of the layer of compression induced by shot peening, gravity peening and laser shocking in Ti-6Al-4V and Inconel 718 at engine temperatures is summarized. Both the magnitude and rate of relaxation were found to depend primarily on the degree of cold working developed during processing. Compression in highly cold worked surfaces relaxed extremely rapidly in both alloys. Half the initial compression may be lost in less than 10 minutes even at moderate engine temperatures. Finite element estimates of the distortion resulting from nonuniform thermal relaxation in a hypothetical airfoil geometry is presented.
DNA Structure-Induced Recruitment and Activation of the Fanconi Anemia Pathway Protein FANCD2

ABSTRACT The Fanconi anemia (FA) pathway proteins are thought to be involved in the repair of irregular DNA structures including those encountered by the moving replication fork. However, the nature of the DNA structures that recruit and activate the FA proteins is not known. Because FA proteins function within an extended network of proteins, some of which are still unknown, we recently established cell-free assays in Xenopus laevis egg extracts to deconstruct the FA pathway in a fully replication-competent context. Here we show that the central FA pathway protein, xFANCD2, is monoubiquitinated (xFANCD2-L) rapidly in the presence of linear and branched double-stranded DNA (dsDNA) structures but not single-stranded or Y-shaped DNA. xFANCD2-L associates with dsDNA structures in an FA core complex-dependent manner but independently of xATRIP, the regulatory subunit of xATR. Formation of xFANCD2-L is also triggered in response to circular dsDNA, suggesting that dsDNA ends are not required to trigger monoubiquitination of FANCD2. The induction of xFANCD2-L in response to circular dsDNA is replication and checkpoint independent. Our results provide new evidence that the FA pathway discriminates among DNA structures and demonstrate that triggering the FA pathway can be uncoupled from DNA replication and ATRIP-dependent activation.
Glassist: Using Augmented Reality on Google Glass as an Aid to Classroom Management

Google glass is a hands-free, head-mounted intelligent device that can be worn as a wearable computing eyewear. This work discusses its potential in education by proposing an application, the Glassist, aiming at helping teachers management tasks. The application allows teachers to create individual portfolios for students, manage their information and share it with peers. The tool uses Augmented Reality to recognize students face and display relevant information about them. We also discuss some preliminary results regarding its evaluation. To conclude, we point out some future works.