Miracle-dz/UniFAR-FTUs huggingface dataset:
A Trust Model Based on Similarity-Weighted Recommendation for P2P Environments

In decentralized peer-to-peer file-sharing networks, due to the anonymous and self-organization nature of peers, they have to manage the risk involved with the transactions without prior knowledge about each other’s reputation. SWRTrust, a global trust model, is proposed to quantify and to evaluate the trustworthiness of peers, which includes a mathematical description and a distributed implementation. In SWRTrust, each peer is assigned a unique global trust value, computed by aggregating similarity-weighted recommendations of the peers who have interacted with it. Previous global trust models are based on the assumption that the peers with high trust value will give the honest recommendation. This paper argues that this assumption may not hold in all cases. Theoretical analyses and experimental results show that SWRTrust is still robust under more general conditions where malicious peers cooperate in an attempt to deliberately subvert the system, converges more quickly, and decreases the number of inauthentic files downloaded more effectively than the previous models.
Creating Communities of Support Within Alternative Settings: Perspectives of Practicing Alternative School Administrators

Much can be learned from practicing school leaders, including how they describe their roles navigating between policy and practice with a focus on meeting students’ needs. This article considers how alternative school administrators work with school personnel to create communities for supporting students once considered at risk in traditional public schools. Findings include (1) creating a culture of high standards, (2) adopting a personalized or caring approach to leadership, (3) exploring and implementing innovative practices for teaching and learning, and (4) managing students as a collaborative and individualized process. For further understanding, authors apply emergent themes to a model for advancing democratic professional practice in education.
Teachers’ Point of View in Some UNRWA schools,in Jordan on the Importance of Using Instructional Technological Media in Teaching, The Difficulties They Encountered in Using this Media

This study aims at identifying the teachers point of view on some UNRWA schools in Jordan about the importance of using the instructional technological media in teaching and the encountered difficulties when using this media; and to identify the influence of the following variables on the teachers ’ point of view on the use of technical media: sex, teaching experience, specialization, academic qualification and the stage of teaching. The sample of this study includes (151) male and female teachers working in 24 elementary & preparatory schools. Data analysis revealed the following results:
Intra-seasonal oscillatory modes of the southern Africa summer circulation

This thesis gives attention to the circulation of the tropical atmosphere over southern Africa and the immediate oceanic regions on either side at submonthly or intraseasonal oscillation scales (ISOs). Questions about the region include seasonality of summer rains, time variations of wet and dry spells, weatherbearing systems associated with each phase an.d in the case of wet events, evolution. The study first touches briefly on monthly and seasonal variations of Zimbabwe rainfall and regional teleconnnections. Summer rainfall in Zimbabwe is declining and weather events are becoming more severe and cyclic. lnterannual fluctuations are dominated by the 2.3year (28month) cycle. Secondary cycles are found at 18.6 and 3.8 years. The cycles are attributed to the QuasiBiennial Oscillation (QBO), the lunisolar tidal action and El Nino/ Southern Oscillation (ENSO), respectively. Zimbabwe rainfall can be reasonably predicted as early as six months prior to occurrence and is best correlated with equatorial Indian Ocean SST and equatorial Atlantic Ocean 200 hPa zonal winds. Intraseasonal time scale analysis of southern Africa pentad (fiveday) summer rainfall indicates cycles ranging from 1045 days, the mean frequency being 34 pentads (20 days). The season is composed of 5 wet spells alternating with four dry spells. The rainfall distribution is multimodal and divided into early (or short rains) and late (long rains) summer separated by a major dry spell from the end of December to midJanuary. The 20°S latitude demarcates tropical from ex:tratropical circulations. Period mean analysis for varous phases shows systems propagating eastward from the South Atlantic throughout early summer. There is evidence of a monsoon system propagation southwestwards from the central equatorial Indian Ocean in late summer. Over southern Africa, early summer convective phases are characterised by lowlevel anticyclonic ridging from the Atlantic Ocean and a midlevel southerly wind circulation. Prior to peak wet spells, lowlevel easterly anomalies advect moisture from the central Indian Ocean. Upper troughs are transported from the Atlantic Ocean. Late summer wet spells are dictated by the intensity of two lowlevel troughs, one stretching from the Mozambique Channel to Angola (MCA n . and other from Angola to South Africa on the western flank. Moisture is from two sources; the equatorial Congo basin and the SW Indian Ocean. Rainfall is often triggered internally over southern Africa.
TPACK Observation Instrument: Development, Validation, and Reliability

The aims of this study is to develop an observation instrument and test the validity and reliability used to measure the performance of biology teachers to apply TPACK in the learning process. This research is included in the DDR. The steps to develop TPACK observation instruments are, (1) analysis of products to be developed; (2) initial product development; (3) product validation; (4) field trials; and (5) product revisions. TPACK observation instrument was trialed on 11 biology teachers in two provinces, Yogyakarta and Central Java in August 2018, involving 4 rater. Face validity and empirical validity were carried out. Instrument face validity involves 2 expert judgements and empirical validity is determined by looking for Biserial Correlation value. Intraclass correlation coefficient (ICC) is used to test reliability. Empirical validity based on the value of Biserial Correlation shows that all items are valid with R count> 0.602. The reliability value of the TPACK instrument disclosed by the ICC is 1,000, which means that the instrument has a high reliability level. In addition, the development of both reliable and valid scale related to the technological pedagogical content knowledge of biology teachers’ would be promote further studies.
Comparative semantics for a parallel contextual programming language

Recently, contextual logic programming has been proposed as an extension to the logic pro gramming paradigm aiming at structuring programs and logical derivations in a coordinated way ((MP89]). The purpose of this paper is to present and compare various semantics for a parallel version of it. Six semantics, ranging in the operational, declarative and denotational types, are discussed. Three operational semantics are presented. They all rest on a transition system but differ in their ability of describing success set, failure set, infinite computations and of handling repetitions:
Worldwide state of language MOOCs

In the age of globalization, the need for language learning is greater than ever before. “Globalization is a process by which the people of the world are unified into a single society and [function] together” (Chomsky, 2006, cited in Ivan, 2012, p. 81). As global citizens we need to be able to work in settings characterized by linguistic and cultural diversity and that means that “language competencies and intercultural skills [are] more than ever a part of the key qualifications needed to successfully work and live in this new reality” (Perifanou & Economides, 2014, p. 3561). Even though many prestigious universities offer open language courses at a large scale, choosing well known Massive Open Online Course (MOOC) providers, the body of research on mapping existing language learning MOOC initiatives worldwide is rather poor. This paper aims to partially fill this research gap presenting the research contribution of the Erasmus+ KA2 project entitled LangMOOC project. More specifically, the paper first presents the main findings of the background research (Perifanou, 2014; Perifanou & Economides, 2014) of the LangMOOC project that has explored the first language learning MOOC initiatives and evaluated them based on the Massive Open Online Interactive Language Learning Environment (MOILLE2) framework. Next, the paper analyzes the overall aims of the LangMOOC project and in the end, it discusses its first research findings as well as its future research steps.
Cholelithiasis presentation and management in tertiary care hospital in South India: A clinical study

Background: Gallstones are the major cause of morbidity and mortality throughout the world. With at least 10 % of the adults have gallstones with a recent rise in the incidence due to change in the dietary factors. This study intends to know its various modes of presentation, treatment, outcome. Methods: Fifty patients with symptoms and signs of cholelithiasis admitted in surgical ‘B’ unit, Government Medical College A Tertiary care hospital, Mysuru from period of January 2012 to July 2013, were included in the study, clinical profile, investigation, treatments, outcomes were analysed. Results: The highest age incidence of cholelithiasis was in the 5 decade, more common in females. Pain abdomen was the most common symptom. Ultrasonography showed gallbladder stones in all patients and 52% of patients undergone open cholecystectomy, 48% of patients undergone laparoscopic cholecystectomy. The conversion rate of lap to open cholecystectomy was 4%. The operating room time and the length of post-operative stay were 65 min and 7 days in open cholecystectomy and 115 min and 3 days in lap cholecystectomy. Conclusions: The result showed cholelithiasis was more common in females, 5 decade, presented most commonly with pain abdomen. Ultrasonography was the most common investigation. Laparoscopic cholecystectomy reduces the number of hospital days, pain, disability.
PERAN CITRA MEREK DALAM MEMEDIASI PENGARUH WOM TERHADAP NIAT BELI PRODUK NUTRISI MEREK HERBALIFE

The aim of the study was to analyze the role of brand image in mediating the influence of word of mouth on the purchase intention of Herbalife brand nutrition products in Denpasar City. The sample was 100 people with non probability sampling technique. Primary data was obtained by distributing questionnaires and analyzed using descriptive statistics of the average count and inferential statistics in the form of path analysis and multiple test. The results of data analysis showed that the word of mouth variable had a positive and significant effect on brand image, brand image variables had a positive and significant effect on purchase intention, word of mouth variables had a positive and significant effect on purchase intention, and brand image variables played a part in mediating influence. word of mouth to buy Herbalife brand nutrition products.
Soil Mechanics Si Version

Thank you for reading soil mechanics si version. As you may know, people have search numerous times for their favorite readings like this soil mechanics si version, but end up in infectious downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they cope with some malicious bugs inside their desktop computer. soil mechanics si version is available in our digital library an online access to it is set as public so you can get it instantly. Our digital library spans in multiple countries, allowing you to get the most less latency time to download any of our books like this one. Merely said, the soil mechanics si version is universally compatible with any devices to read.
Solving the interdomain routing puzzle: understanding interdomain routing dynamics

BGP, the Border Gateway Protocol, is the de facto standard protocol for performing interdomain routing on the Internet today. This thesis combines controlled active measurement in a testbed environment as well as on the actual Internet, correlating routing traffic with the forwarding plane and analyzing the protocol in detail using simulations to expose problems of interdomain routing dynamics. This class of problems may be difficult to reason statically due to the interaction of protocol components and can be observed more easily during run time. They include reachability, forwarding behavior, and convergence dynamics. The first part of this work exposes an unexpected interaction between two protocol features in BGP—route flap damping and path vector-based convergence, significantly delaying convergence. It illustrates the need to carefully analyze BGP's run time behavior and shows the inherent complexity in the BGP dynamics. It provides an excellent example of how new features added to BGP for the purpose of solving an immediate problem can create additional hidden problems due to protocol feature interactions. We designed and implemented an active routing measurement infrastructure— BGP Beacons. It differs from previous efforts in its public and long-term nature and several experimentation features to facilitate measurement interpretation. We demonstrate several uses of this infrastructure to better understand BGP dynamics, one of which being the validation of our conjecture of the interaction of route flap damping and convergence as described in the first part of the dissertation. Contrary to common wisdom, the routing information may not always reflect the underlying packet forwarding behavior or how data packets flow on the Internet. The discrepancies can be caused by various routing anomalies and need to be carefully studied. To understand the impact of routing dynamics on the data plane dynamics, in the last part of the thesis, we describe the development of a tool and associated optimization algorithms to study the interaction between the control plane and the data plane. The main contribution of this dissertation is an experimental framework for improved understanding of the dynamics of interdomain routing. Using this framework, we validated our conjecture that route flap damping can delay convergence. We focus on routing problems such as reachability and forwarding behavior that are difficult to reason statically due to lack of topology and policy information and illustrate through measurement they can be much better understood. As a byproduct of this work, we contribute to the research and operator community an active measurement infrastructure for controlled BGP route injection—BGP Beacons, and a tool to correlate the routing behavior with the packet forwarding behavior—AS-traceroute tool. (Abstract shortened by UMI.)
Dual layered display that presents auto‐stereoscopic 3D images to multiple viewers in arbitrary positions

Dual layered display or also called tensor display that consists of two panels in a stack can present full‐parallax 3D images with high resolution and continuous motion parallax by reconstructing corresponding light ray field within a viewing angle. The depth range where the 3D images can be displayed with reasonable resolution, however, is limited around the panel stack. In this paper, we propose a dual layered display that can present stereoscopic images to multiple viewers located at arbitrary positions in observer space with high resolution and large depth range. Combined with the viewer tracking system, the proposed method provides a practical way to realize high‐resolution large‐depth auto‐stereoscopic 3D display for multiple observers without restriction on the observer position and the head orientation.
Entire Functions Of Several Complex Variables

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Pharmacological effects of different ginger juices on the concurrent symptoms in animal models of functional dyspepsia: A comparative study

Abstract Objective Patients with gastrointestinal disorders commonly suffer from poor treatment outcomes and adverse effects of traditional pharmacological therapy. Herbal medicine is a favorable alternative due to the low risk of side effects. This study was performed to explore the antiemetic effects and the improvement effect on gastrointestinal function of components of three ginger juice excipients. Methods The compositions were analyzed by liquid chromatograph mass spectrometer (LC‐MS), especially the gingerols of dried ginger juice (DGJ), fresh ginger juice (FGJ), and fresh ginger boiled juice (FGBJ). Furthermore, the respective gastrointestinal effects on rat models with functional dyspepsia (FD) were compared. Results The 6‐keto‐PGF1α levels in the serum of the treated groups were significantly reduced (p < 0.05), as compared with the control group. Compared with the cisplatin group, there was an apparent reduction in kaolin intake for DGJ, FGJ, and FGBJ (p < 0.01; p < 0.01; p < 0.05). The intestinal propulsive rate of the rats in the treated group was significantly higher than that in the control group (p < 0.05). Ginger juices significantly improved gastrointestinal function in rats. Eight common components were found in DGJ, FGJ, and FGBJ, among which 6‐paradol, 10‐gingerol, and 12‐shogaol led to inhibited gastric mucosal damage function effect according to the Pearson correlation analysis. Only 6‐shogaol was found to have a positive correlation with gastrointestinal function effect through Pearson correlation analysis. Conclusion Ginger juice should be recommended for the medicinal materials used in the treatment of concurrent symptoms of FD.
Variable Selection for Panel Count Data via Non‐Concave Penalized Estimating Function

Abstract. Variable selection is an important issue in all regression analyses, and in this paper we discuss this in the context of regression analysis of panel count data. Panel count data often occur in long‐term studies that concern occurrence rate of a recurrent event, and their analysis has recently attracted a great deal of attention. However, there does not seem to exist any established approach for variable selection with respect to panel count data. For the problem, we adopt the idea behind the non‐concave penalized likelihood approach and develop a non‐concave penalized estimating function approach. The proposed methodology selects variables and estimates regression coefficients simultaneously, and an algorithm is presented for this process. We show that the proposed procedure performs as well as the oracle procedure in that it yields the estimates as if the correct submodel were known. Simulation studies are conducted for assessing the performance of the proposed approach and suggest that it works well for practical situations. An illustrative example from a cancer study is provided.
Goal-Setting in Educational Video Games

Background. The increased usage of educational video games with their strong graphical and technical potential raises the question of how to optimize the instructional elements of gameplay. In this article, the instructional goal was analyzed with the theoretical background of both motivational psychology (goal-setting theory) and cognitive psychology (goal-free effect). Aim. We compared different goal types within an educational video game specifically produced for this context, using MINECRAFT as a content creation tool. Method. Within a quantitative, empirical experiment, 87 students divided into three goal groups (specific learning goal, specific performance goal, goal-free condition) played the video game for nearly three hours per test session to gain knowledge about basic elements of computer science and basic electric engineering. Results. The results show effects of goal-setting on cognitive load and affective measures. Having specific learning goals lowered extraneous and intrinsic cognitive load. Additionally, players following a specific learning goal reported having significantly more fun, indicating the affective impacts of goal-setting. Conclusions. The outcomes of this study have practical implications for the creation of educational video games and theoretical implications for further work within the field of instructional psychology.
A Modified Version of the K-means Clustering Algorithm

Clustering is a technique in data mining which divides given data set into small clusters based on their similarity. K-means clustering algorithm is a popular, unsupervised and iterative clustering algorithm which divides given dataset into k clusters. But there are some drawbacks of traditional k-means clustering algorithm such as it takes more time to run as it has to calculate distance between each data object and all centroids in each iteration. Accuracy of final clustering result is mainly depends on correctness of the initial centroids, which are selected randomly. This paper proposes a methodology which finds better initial centroids further this method is combined with existing improved method for assigning data objects to clusters which requires two simple data structures to store information about each iteration, which is to be used in the next iteration. Proposed algorithm is compared in terms of time and accuracy with traditional k-means clustering algorithm as well as with a popular improved k-means clustering algorithm.
Dual-Pivot Quicksort and Beyond: Analysis of Multiway Partitioning and Its Practical Potential

Multiway Quicksort, i.e., partitioning the input in one step around several pivots, has received much attention since Java 7’s runtime library uses a new dual-pivot method that outperforms by far the old Quicksort implementation. The success of dual-pivot Quicksort is most likely due to more efficient usage of the memory hierarchy, which gives reason to believe that further improvements are possible with multiway Quicksort. In this dissertation, I conduct a mathematical average-case analysis of multiway Quicksort including the important optimization to choose pivots from a sample of the input. I propose a parametric template algorithm that covers all practically relevant partitioning methods as special cases, and analyze this method in full generality. This allows me to analytically investigate in depth what effect the parameters of the generic Quicksort have on its performance. To model the memory-hierarchy costs, I also analyze the expected number of scanned elements, a measure for the amount of data transferred from memory that is known to also approximate the number of cache misses very well. The analysis unifies previous analyses of particular Quicksort variants under particular cost measures in one generic framework. A main result is that multiway partitioning can reduce the number of scanned elements significantly, while it does not save many key comparisons; this explains why the earlier studies of multiway Quicksort did not find it promising. A highlight of this dissertation is the extension of the analysis to inputs with equal keys. I give the first analysis of Quicksort with pivot sampling and multiway partitioning on an input model with equal keys.