Miracle-dz/UniFAR-FTUs huggingface dataset:
Parallel Star Join + DataIndexes: Efficient Query Processing in Data Warehouses and OLAP

On-line analytical processing (OLAP) refers to the technologies that allow users to efficiently retrieve data from the data warehouse for decision-support purposes. Data warehouses tend to be extremely large, it is quite possible for a data warehouse to be hundreds of gigabytes to terabytes in size (Chauduri and Dayal, 1997). Queries tend to be complex and ad hoc, often requiring computationally expensive operations such as joins and aggregation. Given this, we are interested in developing strategies for improving query processing in data warehouses by exploring the applicability of parallel processing techniques. In particular, we exploit the natural partitionability of a star schema and render it even more efficient by applying DataIndexes-a storage structure that serves both as an index as well as data and lends itself naturally to vertical partitioning of the data. DataIndexes are derived from the various special purpose access mechanisms currently supported in commercial OLAP products. Specifically, we propose a declustering strategy which incorporates both task and data partitioning and present the Parallel Star Join (PSJ) Algorithm, which provides a means to perform a star join in parallel using efficient operations involving only rowsets and projection columns. We compare the performance of the PSJ Algorithm with two parallel query processing strategies. The first is a parallel join strategy utilizing the Bitmap Join Index (BJI), arguably the state-of-the-art OLAP join structure in use today. For the second strategy we choose a well-known parallel join algorithm, namely the pipelined hash algorithm. To assist in the performance comparison, we first develop a cost model of the disk access and transmission costs for all three approaches.
Quantifying Web-Search Privacy

Web search queries reveal extensive information about users' personal lives to the search engines and Internet eavesdroppers. Obfuscating search queries through adding dummy queries is a practical and user-centric protection mechanism to hide users' search intentions and interests. Despite few such obfuscation methods and tools, there is no generic quantitative methodology for evaluating users' web-search privacy. In this paper, we provide such a methodology. We formalize adversary's background knowledge and attacks, the users' privacy objectives, and the algorithms to evaluate effectiveness of query obfuscation mechanisms. We build upon machine-learning algorithms to learn the linkability between user queries. This encompasses the adversary's knowledge about the obfuscation mechanism and the users' web-search behavior. Then, we quantify privacy of users with respect to linkage attacks. Our generic attack can run against users for which the adversary does not have any background knowledge, as well as for the cases where some prior queries from the target users are already observed. We quantify privacy at the query level (the link between user's queries) and the semantic level (user's topics of interest). We design a generic tool that can be used for evaluating generic obfuscation mechanisms, and users with different web search behavior. To illustrate our approach in practice, we analyze and compare privacy of users for two example obfuscation mechanisms on a set of real web-search logs.
A Grid-Based Evolutionary Algorithm for Many-Objective Optimization

Balancing convergence and diversity plays a key role in evolutionary multiobjective optimization (EMO). Most current EMO algorithms perform well on problems with two or three objectives, but encounter difficulties in their scalability to many-objective optimization. This paper proposes a grid-based evolutionary algorithm (GrEA) to solve many-objective optimization problems. Our aim is to exploit the potential of the grid-based approach to strengthen the selection pressure toward the optimal direction while maintaining an extensive and uniform distribution among solutions. To this end, two concepts-grid dominance and grid difference-are introduced to determine the mutual relationship of individuals in a grid environment. Three grid-based criteria, i.e., grid ranking, grid crowding distance, and grid coordinate point distance, are incorporated into the fitness of individuals to distinguish them in both the mating and environmental selection processes. Moreover, a fitness adjustment strategy is developed by adaptively punishing individuals based on the neighborhood and grid dominance relations in order to avoid partial overcrowding as well as guide the search toward different directions in the archive. Six state-of-the-art EMO algorithms are selected as the peer algorithms to validate GrEA. A series of extensive experiments is conducted on 52 instances of nine test problems taken from three test suites. The experimental results show the effectiveness and competitiveness of the proposed GrEA in balancing convergence and diversity. The solution set obtained by GrEA can achieve a better coverage of the Pareto front than that obtained by other algorithms on most of the tested problems. Additionally, a parametric study reveals interesting insights of the division parameter in a grid and also indicates useful values for problems with different characteristics.
Role of deleted in colon carcinoma in osteoarthritis and in chondrocyte migration.

OBJECTIVE The concept of the chondrocyte as a stationary cell surrounded by an apparently impenetrable matrix has been challenged by in vitro observations in recent years. Chondrocyte migration may have a role in remodelling of the cartilage and pathological conditions. Candidate molecules are repellent factors for the regulation of chondrocyte migration, which are expressed in fetal and adult cartilage. We analysed the potential role of the receptor deleted in colon carcinoma (DCC) in chondrocytes, as this may exert attractive activities. METHODS Gene expression was determined by quantitative RT-PCR and immunohistochemistry, and gene regulation by electro mobility shift assay and chromatin immunoprecipitation. Functional assays on migration and differentiation were done after cell treatment and transfection. RESULTS DCC was shown to be specifically up-regulated in OA compared with normal chondrocytes in vitro and in vivo. Promoter analysis and transfection studies showed that the up-regulation of DCC in OA chondrocytes may be mediated by the transcription factors Sox9 and AP-2. Netrin-1, the ligand of DCC, was revealed to induce the migration of OA chondrocytes specifically. Expression of DCC in healthy chondrocytes by transient transfection significantly induced cell migration and chemotaxis to Netrin-1. DCC expression had no influence on cell differentiation; however, induction of MMP1 and -3 expression was observed. CONCLUSION Strong differential expression of DCC in OA compared with normal chondrocytes hints of a possible role of DCC in the pathophysiology of OA. The strong impact of the DCC receptor on cellular mobility of chondrocytes in vitro suggests a major relevance of migratory activities in physiological and pathological conditions of cartilage. However, definite proof of chondrocyte movements in vivo still has to be established.
"It's Just Gym": Physicality and Identity among African American Adolescent Girls

_____________________________________________________________ix CHAPTER 1 – CULTURAL SYSTEMS AND PHYSICALITY 1 SECTION 1.1 – PROLOGUE SECTION 1.2 AT THE INTERSECTION OF MYTH AND EXPERIENCE SUBSECTION 1.2. A ENVIRONMENT AND ACCULTURATION SUBSECTION 1.2. B TEASED INTO SILENCE SUBSECTION 1.2. C THE ETHOS OF ACCEPTABLE PRESENTATION SUBSECTION 1.2. D – NON-HOMOGENEOUS RACIALIZATION SUBSECTION 1.2. E MUFFLED AGENCY SECTION 1.3 – CONDITIONAL LESSONS SECTION 1.4 – MODELING PHYSICALITY-INFORMED IDENTITY SECTION 1.5 – THE STUDY SECTION 1.6 – A ROAD MAP CHAPTER 2 – ADOLESCENT SETTING, ADULT STAGING 49 SECTION 2.1 INTRODUCTION SECTION 2.2 – COMMUNITY, DESIGN AND METHODS SUBSECTION 2.2. A COMMUNITY SUBSECTION 2.2. B METHODS SUBSECTION 2.2. C RECRUITMENT SUBSECTION 2.2. D – PARTICIPANT IDENTIFICATION SUBSECTION 2.2. E – TERMINOLOGY SUBSECTION2.2. F – SAMPLE DEMOGRAPHICS SUBSECTION 2.2. G. – DATA COLLECTION SECTION 2.3 – THE WHOLE ELEPHANT CHAPTER 3 – UNMASKING THE SALIENCE OF GENDER 75 SECTION 3.1 INTRODUCTION SECTION 3.2 – AN UNEXPECTED FINDING
Numerical Methods for Simultaneous Diagonalization

A Jacobi-like algorithm for simultaneous diagonalization of commuting pairs of complex normal matrices by unitary similarity transformations is presented. The algorithm uses a sequence of similarity transformations by elementary complex rotations to drive the off-diagonal entries to zero. Its asymptotic convergence rate is shown to be quadratic and numerically stable. It preserves the special structure of real matrices, quaternion matrices, and real symmetric matrices.
CheC is related to the family of flagellar switch proteins and acts independently from CheD to control chemotaxis in Bacillus subtilis

Chemotaxis by Bacillus subtilis requires the inter‐acting chemotaxis proteins CheC and CheD. In this study, we show that CheD is absolutely required for a behavioural response to proline mediated by McpC but is not required for the response to asparagine mediated by McpB. We also show that CheC is not required for the excitation response to asparagine stimulation but is required for adaptation while asparagine remains complexed with the McpB chemoreceptor. CheC displayed an interaction with the histidine kinase CheA as well as with McpB in the yeast two‐hybrid assay, suggesting that the mechanism by which CheC affects adaptation may result from an interaction with the receptor–CheA complex. Furthermore, CheC was found to be related to the family of flagellar switch proteins comprising FliM and FliY but is not present in many proteobacterial genomes in which CheD homologues exist. The distinct physiological roles for CheC and CheD during B. subtilis chemotaxis and the observation that CheD is present in bacterial genomes that lack CheC indicate that these proteins can function independently and may define unique pathways during chemotactic signal transduction. We speculate that CheC interacts with flagellar switch components and dissociates upon CheY‐P binding and subsequently interacts with the receptor complex to facilitate adaptation.
Review of Proposed High Efficiency Video Coding (HEVC) Standard

The objective of this paper is to provide a review of the recent developments in HEVC standardization, particularly focusing on the key features of hybrid coding tools and gives theoretical analysis, summaries of the technological advancements, and compares its performance with the H.264/ MPEG-4 AVC high-profile standard. High Efficiency Video Coding (HEVC) is a proposed and under development new generation of video compression standard, which enables substantially higher compression capability than the existing state-of-the-art video coding standard and exhibit superior coding performance improvements over its predecessors. Some of the major contributors to the higher compression performance of HEVC are the introduction of quadtree structure, improved techniques to support parallel encoding/decoding, more directional intraprediction modes, support for several integer transforms with square as well as nonsquare transforms, merging of prediction blocks for improved motion information encoding, and extensive In-loop processing on reconstructed pictures. When completed, it unlocks future business not possible with today’s AVC notably suitable for resolutions up to Ultra High Definition (UHD) video coding in the future.
Integrative transcriptomics-based identification of cryptic drivers of taxol-resistance genes in ovarian carcinoma cells: Analysis of the androgen receptor

A systematic analysis of the genes involved in taxol resistance (txr) has never been performed. In the present study, we created txr ovarian carcinoma cell lines to identify the genes involved in chemoresistance. Transcriptome analysis revealed 1,194 overexpressed genes in txr cells. Among the upregulated genes, more than 12 cryptic transcription factors were identified using MetaCore analysis (including AR, C/EBPβ, ERα, HNF4α, c-Jun/AP-1, c-Myc, and SP-1). Notably, individual silencing of these transcription factors (except HNF4`)sensitized txr cells to taxol. The androgen receptor (AR) and its target genes were selected for further analysis. Silencing AR using RNA interference produced a 3-fold sensitization to taxol in txr cells, a response similar to that produced by silencing abcb1. AR silencing also downregulated the expression of prominent txr gene candidates (including abcb1, abcb6, abcg2, bmp5, fat3, fgfr2, h1f0, srcrb4d, and tmprss15). In contrast, AR activation using the agonist DHT upregulated expression of the target genes. Individually silencing seven out of nine (78%) AR-regulated txr genes sensitized txr cells to taxol. Inhibition of AKT and JNK cellular kinases using chemical inhibitors caused a dramatic suppression of AR expression. These results indicate that the AR represents a critical driver of gene expression involved in txr.
People and Culture

At adidas, we believe that our people are the key to the company’s success. Their performance, well-being and knowledge have a significant impact on brand desire, consumer satisfaction and, ultimately, our financial performance. Through the delivery of our People Strategy, we focus our efforts on four fundamentals: the attraction and retention of the right talents, role model leadership, diversity and inclusion, as well as the creation of a unique corporate culture.
New Efficient Replacement Strategies for P 2 P Cooperative Proxy Cache Systems

The cache replacement algorithm plays a very import ant role in the overall effectiveness of a cooperative proxy cache system. In this paper, we study new cache replacement strategies in a self-configured, self-m anaged P2P proxy cache system. In this proposed P2P proxy cache system, cooperative proxies possess only loca l knowledge of the entire cache system and some limit ed global statistical information. Designing an effic ient cache replacement algorithm (a global predicate) us ing only local knowledge is more challenging. We propo se a Criteria Weighted cache replacement algorithm to manage the cache space in each individual proxy. T he aggregate effect of cache replacement in individual proxies effectively optimizes the overall cache spa ce in the entire cache system. Furthermore, we refine th e proposed algorithm by pushing the replacement victi m (the last replica known to current proxy) to one of its neighbors. We compare our protocols with some popu lar cache replacement algorithms using extensive simulations. The results show that the proposed CW and CW-VP cache replacement algorithms improve the cach e hit ratio and average request latencies compared to the other algorithms.
Physical activity in the lifestyle of Czech university students: Meeting health recommendations

Abstract The decline of physical activity (PA) in adults as well as children and youth is a worldwide phenomenon. The aim of this study is to analyse the amount of PA in Czech university students' daily lives. The research on university students was conducted as part of nationwide research on PA in the adult population of the Czech Republic. A total of 906 students at eight selected universities were asked to participate in this study. The response rate was 79.5%. We analysed data from 641 university students: 318 male [mean age 21.63±1.73; mean Body Mass Index (BMI) 23.50±1.91] and 323 female (mean age 21.08±1.53; mean BMI 21.23±2.20). The students wore Yamax SW-701 pedometers continuously for seven days. With respect to BMI, the recommendation of 10,000 steps per day on an average day was met by 76% of men and 68% of women of normal weight, 67% of male students who were overweight or obese and 85% of female students who were overweight or obese. Of all monitored days, in both females and males, the number of steps taken on Sunday was significantly lower (p<0.0001) in comparison to other days of a week. No significant differences were found in the number of steps taken among students of normal weight, students who were overweight and students who were obese on any of the monitored days. The majority of Czech male university students are of normal weight. Only 9% of students meet the criterion of 10,000 steps every day. Approximately two-thirds of students meet the 10,000 steps daily criterion on four or more days per week. The lowest number of steps is taken on Sundays; this finding supports the need for intervention programmes to enhance PA on weekends.
Brief Intraperitoneal Radioimmunotherapy of Small Peritoneal Carcinomatosis Using High Activities of Noninternalizing 125I-Labeled Monoclonal Antibodies

We assessed the efficiency and toxicity of brief intraperitoneal radioimmunotherapy using high activities of 125I-labeled monoclonal antibody (mAb) in the treatment of small-volume peritoneal carcinomatosis. Methods: Brief intraperitoneal radioimmunotherapy consisted of a 185-MBq (740 MBq/mg) intraperitoneal injection of 125I-35A7 (an anti–carcinoembryonic antigen mAb) into athymic nude mice 4 d after peritoneal tumor xenografting and, after 1 h, abundant washing of the peritoneal cavity with saline solution to remove unbound radioactivity. Another group of mice received this treatment plus a 37-MBq intravenous injection of 125I-35A7 on day 7 or 11 after grafting. Control groups received a brief treatment followed by an additional intravenous injection on day 7 of either saline solution or irrelevant 125I-PX. Tumor growth was monitored by bioluminescence imaging and SPECT/CT, and hematologic toxicity was evaluated by complete blood counts. Survival time was reported, and the mice were sacrificed when the bioluminescence signal reached 4.5 × 107 photons/s. The biodistribution of 125I-35A7 mAb after intravenous or brief treatment was assessed, and the mean absorbed irradiation dose by organs and tumors was calculated using the MIRD formalism. Results: Mild, transient hematologic toxicity was observed after the brief treatment plus intravenous 125I-mAb, with no weight loss. Median survival increased from 32 d in the control groups, to 46 d in the brief treatment group, to 66 d in the group additionally receiving intravenous treatment on day 11, to 73 d in the group additionally receiving intravenous treatment on day 7. The brief treatment alone resulted in a 3-fold higher tumor-to-blood uptake ratio than did the standard intravenous treatment, and the mean absorbed irradiation doses by tumors were 11.6 Gy for the brief treatment and 16.7 Gy for the additional intravenous treatment. For healthy tissues other than blood, the mean absorbed irradiation dose did not exceed 1 Gy after brief treatment and 4.2 Gy after intravenous treatment. Conclusion: The efficiency, low toxicity, and high tumor–to–healthy tissue uptake ratio associated with brief intraperitoneal 125I-35A7 radioimmunotherapy suggest that this method can be used in combination with radiation-synergistic drugs in the therapy of small-volume peritoneal carcinomatosis after cytoreductive surgery.
Assessment of seawater pollution by heavy metals in the neighbourhood of Algiers: Use of the sea urchin, Paracentrotus lividus, as a bioindicator

Soualili, D. , Dubois, P., Gosselin, P., Pernet, P., and Guillou, M. 2008 Assessment of seawater pollution by heavy metals in the neighbourhood of Algiers: use of the sea urchin, Paracentrotus lividus, as a bioindicator. - ICES Journal of Marine Science, 65: 132-139.The objective of the study was to assess the levels of contamination by heavy metals near the Algiers metropolis, using a combination of chemical and toxicological data gained from analyses of sediments and biological parameters characteristic of the sea urchin, Paracentrotus lividus. Zinc, lead, cadmium, copper, and iron concentrations were determined in sediments and in sea urchin gonads. Sediment toxicity was assessed by bioassay based on the larval development of sea urchins. The most numerous larval abnormalities were found in a site near Algiers identified as highly polluted by lead. The levels of the other metals across the study area fell within the background concentrations reported in the literature for the Mediterranean Sea, with the exception of zinc, which showed high values in female gonads.
Simple Baseline for Visual Question Answering

We describe a very simple bag-of-words baseline for visual question answering. This baseline concatenates the word features from the question and CNN features from the image to predict the answer. When evaluated on the challenging VQA dataset [2], it shows comparable performance to many recent approaches using recurrent neural networks. To explore the strength and weakness of the trained model, we also provide an interactive web demo and open-source code.
Far from the madding crowd: psychiatric diagnosis as the management of moral accountability

The Port Arthur massacre has raised the expected queries of what manner of person would go berserk in this fashion and how far the crimes could have been anticipated. Without wishing to pre-empt later legal findings the report thus far is that the killer is a young man believed to have had a history of mental illness. How is it possible that such an apparently disturbed young man has escaped scrutiny for so long?
The use of Social Networks by the Students of a Mexican Public University

The purpose of this study was to determine the relation between the students’ use of digital social networks and the variables of age, time, gender, reasons and their Bachelor’s Degree program, in the context of the Faculty of Accounting and Administration (FAA) at a Mexican public university (MPU). The specific objectives were: determine the places and devices used to access their preferred digital social networks; their use and motivations to use these tools. The design of the research was non-experimental with a correlational quantitative focus. An instrument was designed, validated and applied to 842 students of a population of 3670. A descriptive analysis was done and, Spearman’s Rho, ANOVA and student’s t tests were applied. The results determined that Facebook is the most popular social network, followed by YouTube; the main significant reason was leisure. Also there is no influence among the age of the students of the FAA and the time that they spend on digital social networks; the gender of the participants does influence the reasons why they take part in the digital social networks. Furthermore, neither their BA programs, nor the reasons why they take part in the networks, influence the type of digital social networks they use. https://doi.org/10.26803/ijlter.16. 10.10