Miracle-dz/UniFAR-FTUs huggingface dataset:
A 2.4 GHz and 5.8 GHz tunable low-noise amplifier using PIN diode

In this paper, a tunable low-noise amplifier (LNA) is developed. The operation bands of the LNA can be switched between 2.4 GHz and 5.8 GHz by controlling a PIN diode in the output matching network. At the forward bias state of the PIN diode, the LNA operates at 2.4 GHz, the measured gain is 16 dB and the noise figure is below 0.6 dB within a bandwidth of 100 MHz. At the reverse bias state of the PIN diode, the LNA works at 5.8 GHz, the measured gain is 9.7 dB and the noise figure is below 1.7 dB within a bandwidth of 200 MHz. Compared with the wideband LNA covering 2.4GHz and 5.8GHz bands, efficient improvement in gain and noise figure is observed.
The Infinity Mirror Test for Analyzing the Robustness of Graph Generators

Graph generators learn a model from a source graph in order to generate a new graph that has many of the same properties. The learned models each have implicit and explicit biases built in, and its important to understand the assumptions that are made when generating a new graph. Of course, the differences between the new graph and the original graph, as compared by any number of graph properties, are important indicators of the biases inherent in any modelling task. But these critical differences are subtle and not immediately apparent using standard performance metrics. Therefore, we introduce the infinity mirror test for the analysis of graph generator performance and robustness. This stress test operates by repeatedly, recursively fitting a model to itself. A perfect graph generator would have no deviation from the original or ideal graph, however the implicit biases and assumptions that are cooked into the various models are exaggerated by the infinity mirror test allowing for new insights that were not available before. We show, via hundreds of experiments on 6 real world graphs, that several common graph generators do degenerate in interesting and informative ways. We believe that the observed degenerative patterns are clues to future development of better graph models.
Comparison of antinuclear antibody testing methods: immunofluorescence assay versus enzyme immunoassay

Performances of anti-nuclear antibody testing by immunofluorescence assay (ANA-IFA) and enzyme immunoassay (ANA-EIA) were compared in relation to patient diagnosis. A total of 467 patient serum samples were tested by ANA-IFA (Kallestad; Sanofi) and ANA-EIA (RADIAS; Bio-Rad), and their age, sex, diagnosis, disease status, and medications were obtained through chart review. Reference ranges were established by testing 98 healthy blood donor samples. Eighty-six samples came from patients with diffuse connective tissue diseases, including systemic lupus erythematosus, discoid lupus erythematosus, or drug-induced lupus (n = 71); systemic sclerosis, CREST syndrome (calcinosis, Raynaud's phenomenon, esophageal motility abnormalities, sclerodactyly, and telangiectasia), or Raynaud's syndrome (n = 8); Sjögren's syndrome (n = 5); mixed connective tissue disease (n = 5); and polymyositis or dermatomyositis (n = 3). The sensitivity, specificity, positive predictive value, and negative predictive value for ANA-IFA were 87.2, 48.0, 29.1, and 93.9%, respectively, for the reference range of < 1:160. For ANA-EIA, they were 90.7, 60.2, 35.8, and 96.4%, respectively, for the reference range of < 0.9. ANA-EIA offers equivalent sensitivity and higher specificity compared to ANA-IFA.
A knowledge‐based approach for polarity classification in Twitter

Until now, most of the methods published for polarity classification in Twitter have used a supervised approach. The differences between them are only the features selected and the method used for weighting them. In this article, we present an unsupervised method for polarity classification in Twitter. The method is based on the expansion of the concepts expressed in the tweets through the application of PageRank to WordNet. In addition, we integrate SentiWordNet to compute the final value of polarity. The synsets values are weighted with the PageRank scores obtained in the previous random walk process over WordNet. The results obtained show that disambiguation and expansion are good strategies for improving overall performance.
Overcoming Asymmetry in Entity Graphs

This paper studies the problem of mining named entity translations by aligning comparable corpora. Current state-of-the-art approaches mine a translation pair by aligning an entity graph in one language to another based on node similarity or propagated similarity of related entities. However, they, building on the assumption of “symmetry”, quickly deteriorate on “weakly” comparable corpora with some asymmetry. In this paper, we pursue two directions for overcoming relation and entity asymmetry respectively. The first approach starts from weakly comparable corpora (for high recall) then ensures precision by selective propagation only to entities of symmetric relations. The second approach starts from parallel corpora (for high precision) then enhances recall by extending the translation matrix based on node similarity and contextual similarity. Our experimental results on English-Chinese corpora show that both approaches are effective and complementary. Our combined approach outperforms the best-performing baseline in terms of F1-score by up to 0.28.
Word Semantic Similarity Based on Document's Title

Measuring similarity between words using a search engine based on page counts alone is a challenging task. Search engines consider a document as a bag of words, ignoring the position of words in a document. In order to measure semantic similarity between two given words, this paper proposes a transformation function for web measures along with a new approach that exploits the document's title attribute and uses page counts alone returned by Web search engines. Experimental results on benchmark datasets show that the proposed approach outperforms snippets alone methods, achieving a correlation coefficient up to 71%.
Cultural Context and the Vietnamese-American Entrepreneurial Experience

ABSTRACT This paper provides a descriptive analysis of the Vietnamese-American entrepreneurial role. The social environment in which they operate is different than that reported for mainstream populations. It is proposed here that the Vietnamese-American culture, and the cohesiveness, which arises from cultural homogeneity and proximity, impact the entrepreneurial experience of the group. Paper notes that should be directed toward a more controlled and detailed analysis of the impact of culture on the entrepreneurial experience.
Product, Personality or Prose? Testing Functional Matching Effects in Advertising Persuasion

Abstract Despite calls for research on the use of utilitarian versus identity appeals more than a decade ago, few advertising studies have examined which appeal may be more persuasive for whom. Guided by the functional matching effects thesis, our two experiments test the separate and interactive roles of product function (social identity-SI, utilitarian-UT), personality (self-monitoring), and advertising copy (socially adjustive-SA, utilitarian-UT) on advertising persuasion. In a within-subject design, Study 1 demonstrated significant product-based, but not personality-based, functional matching effects. Participants preferred the UT advertising copy for the UT product (condom) and the SA copy for the SI product (beer). In a between-subjects design, Study 2 revealed a complex interplay among personality, product, and advertising appeals. Limited yet significant interaction effects indicate that high/low self-monitors formed more favor able attitudes toward the ad and purchase intent when the ad for beer employed the SA/UT copy. Together, our findings suggest that the theoretical premise of the functional matching effects may be promising for advertising persuasion. They also highlight the importance of considering both product and audience characteristics together when selecting advertising appeals. (Key Terms: Advertising Appeals, Self-monitoring Personality, Functional Matching Effect, Creative Strategy, and Attitude Functions)
Time Dependence of Platelet Inhibition After a 600-mg Loading Dose of Clopidogrel in a Large, Unselected Cohort of Candidates for Percutaneous Coronary Intervention

Background—Pretreatment with clopidogrel can reduce the risks associated with percutaneous coronary intervention (PCI). To shorten the time for clopidogrel to become effective, a 600-mg loading dose has been used. We sought to validate this regimen in a large cohort and investigated the time dependence of the antiplatelet effect of 600 mg of clopidogrel. Methods and Results—Our study included 1001 patients who were scheduled for cardiac catheterization as potential candidates for PCI. We obtained blood samples before administration of 600 mg of clopidogrel and at the time of catheterization, which varied according to logistic needs. We assessed platelet aggregation by optical aggregometry and surface expression of P-selectin and activated glycoprotein IIb/IIIa by flow cytometry. Platelet aggregation induced by 5 &mgr;mol/L ADP was 51±14% when catheterization was performed at <1 hour, 41±14% at 1 to <2 hours, 37±15% at 2 to <4 hours, 36±13% at 4 to <6 hours, and 35±14% at ≥6 hours after clopidogrel administration. After 2 hours (n=718), the level of platelet aggregation and the surface expression of P-selectin and activated glycoprotein IIb/IIIa did not change significantly with time after clopidogrel (P>0.24 by univariate or multivariate regression). Comedication with CYP3A4 metabolized statins did not significantly affect platelet aggregation after clopidogrel (P=0.62). Among the 428 patients undergoing PCI, the 30-day composite rate of major adverse cardiac events was 1.9%, with no significant difference between patients undergoing PCI within 2 hours after clopidogrel loading and those undergoing PCI at a later time point. Conclusions—After loading with 600 mg of clopidogrel, the full antiplatelet effect of the drug is achieved after 2 hours. Statins do not interfere with the level of platelet inhibition after this dose.
HLA-Based Distributed Simulation Cloning

Distributed simulation cloning technology is designed to analyze alternative scenarios of a distributed simulation concurrently within the same simulation execution session. One important goal of the technology is to optimize execution by avoiding repeated computation amongst independent scenarios. Our research is concerned with the cloning of High Level Architecture (HLA) based distributed simulations. A decoupled federate architecture is designed to support correct federate cloning at runtime. A federate may spawn clones to explore different scenarios at a decision point. To address the complexity of the overall cloning-enabled distributed simulation due to increasing scenario spawning, we have devised an efficient and precise scheme to identify and partition scenarios. It is desirable to use an incremental cloning mechanism to replicate only those federates whose states will be affected while the rest remain intact and are shared amongst the original and new scenarios. Our incremental cloning mechanism ensures accurate sharing and initiates cloning only when strictly necessary.
Effects of Tiam 1 on invasive capacity of gastric cancer cells in vitro and underlying mechanisms.

OBJECTIVE To investigate changes in the invasive capacity of gastric cancer cells in vitro after expression inhibition of T lymphoma invasion and metastasis inducing factor 1 (Tiam 1) and underlying mechanisms. METHODS Using adhesion selection, two subpopulations with high (MH) or low (ML) invasive capacity were separated from the human gastric cancer cell line MKN-45 (M0). Tiam 1 antisense oligodeoxynucleotide (ASODN) was transfected into MH cells with liposomes, and expression of Tiam 1 mRNA and protein was determined by RT-PCR and quantitative cellular-ELISA. Changes in the cytoskeleton, invasive capacity in vitro and expression of ras-related C3 botulinum toxin substrate 1 (Rac 1), integrin β1 and matrix metalloproteinase 2 (MMP 2) between Tiam 1 ASODN transfected MH cells and non-transfected cells were observed by HE staining, cytoskeletal protein staining, scanning electron microscopy, Boyden chamber tests and cyto-immunohistochemistry. RESULTS A positive correlation existed between the expression level of Tiam l mRNA or protein and the invasion capacity of gastric cancer cells. After ASODN treatment (0.43 μM for 48 h), Tiam 1 mRNA transcription and protein expression in MH cells were decreased by 80% and 24% respectively (P < 0.05), compared with untreated controls, while invasive capacity in vitro was suppressed by 60% (P < 0.05). Morphologic and ultrastructural observation also showed that ASODN-treated MH cells exhibited smooth surfaces with obviously reduced filopodia and microspikes, which resembled M0 and ML cells. Additionally, cytoskeletal distribution dramatically altered from disorder to regularity with reduced long filament-like structure, projections, pseudopodia on cell surface, and with decreased acitn-bodies in cytoplasm. After Tiam 1 ASODN treatment, the expression of Rac 1 and Integrin β1 in MH cells was not affected (P > 0.05), but that of MMP 2 in MH cells was significantly inhibited compared with untreated cells (P < 0.05). CONCLUSION Over-expression of Tiam-1 contributes to the invasive phenotype of gastric cancer cells. Inhibition of Tiam 1 expression could impair the invasive capacity of gastric cancer cells through modulating reconstruction of the cytoskeleton and regulating expression of MMP 2.
Developing and implementing an online doctoral programme

Purpose – This article is a critical reflection of the development and implementation of one of the first online doctoral programmes in the UK set up at the University of Northumbria, Newcastle in 2000.Design/methodology/approach – The method adopted for analysis takes the form of a case study.Findings – Effective market research has to be undertaken to fully understand what students need and expect from an online programme of study. Course providers need to identify highly motivated students. Second, critical success factors focus on a well‐targeted curriculum that provides the skills and knowledge relevant to student needs, backed by exceptional faculty who provide innovative course design. Finally, there is a need for integrating the management, teaching and technical team to ensure a high quality and coherent programme delivery.Practical implications – The reflections in this article can be used as a guide by other faculties wishing to develop online programmes. The article highlights some of the pitf.
Continuity and Discontinuity in Marital Life after Retirement: Life Orientations, Gender Role Ideology, Intimacy, and Satisfaction *

The study examines differences in life orientations, gender role ideology, marital satisfaction, and marital intimacy between a sample of Israeli husbands on the verge of retirement (n = 137) and those who have already retired (n = 211). Results show that the retirees ascribe greater importance to the home and family, whereas the pre-retired husbands give priority to the instrumental aspects of their life. The retired group tended to hold more traditional views about gender roles, while males with working wives (regardless of their own employment status) were found to have more liberal attitudes. Pensioners also tended to report greater satisfaction with marital life. No significant differences were found in regard to marital intimacy; in both groups, the dominant type of intimacy was reciprocity. Except in regard to gender role ideology, no differences were found between husbands of working women and those whose wives did not work.
Compressed inverted files with reduced decoding overheads

Compressed inverted files are the most compact way of indexing large text databases, typically occupying around 10% of the space of the collection they index. The drawback of compression is the need to decompress the index lists during query processing. Here we describe an improved implementation of compressed inverted lists that eliminates almost all redundant decoding and allows extremely fast processing of conjunctive Boolean queries and ranked queries. We also describe a pruning method to reduce the number of candidate documents considered during the evaluation of ranked queries. Experimental results with a database of 510 Mb show that the new mechanism can reduce the CPU and elapsed time for Boolean queries of 4-10 terms to one tenth and one fifth respectively of the standard technique. For ranked queries, the new mechanism reduces both CPU and elapsed time to one third and memory usage to less than one tenth of the standard algorithm, with no degradation in retrieval effectiveness.
Stress Analysis of Connecting Rod for Weight Reduction- A Review

The main objective of this study is to explore weight and cost reduction opportunities in the design and production of a connecting rod. This can be achieved by performing a detailed load analysis. A study is performed on a steel connecting rod. Reduction in machining operations, achieved by change in material, is a significant factor in manufacturing cost reduction. This paper deals with the study of weight reduction performed under two cyclic loads comprising dynamic tensile and static compressive as the two extreme loads. The fatigue strength is the most significant factor in the process. The study analysis includes the determination of loads acting on the connecting rod as a function of time for finding out the minimum stress area to remove the material. The connecting rod can be designed and analysis under a load ranging from tensile load, corresponding to various degree crank angle at the maximum engine speed as one extreme load, and compressive load corresponding to the peak gas pressure as the other extreme load. Furthermore, the existing connecting rod material can be replaced with a new composite material, the fracture crack ability feature, facilitates separation of cap from rod without additional machining of the mating surfaces. Also the same performance can be expected in terms of component durability.
Tree-ring-dated‘Little Ice Age’ histories of maritime glaciers from western Prince William Sound, Alaska

Tree-ring studies at 13 glacier forefields in western Prince William Sound show‘Little Ice Age’ glacial fluctuations were strongly synchronous on decadal timescales. Cross-dated glacially overrun trees at eight sites indicate ice margins advanced in the early (late twelfth through thirteenth centuries) and middle (seventeenth to early eighteenth centuries)‘Little Ice Age’. Tree-ring dates of 22 moraines at 13 glaciers show two main periods of stabilization. The earlier of these, in the first decades of the eighteenth century, overlaps with the second period of glaciers overrunning trees and marks culmination of this middle‘Little Ice Age’ expansion. Stabilization of moraines on nine of the study forefields in the latter part of the nineteenth century delineates a third interval of‘Little Ice Age’ glacial advance. The detailed‘Little Ice Age’ record from land-terminating glaciers in western Prince William Sound is consistent on a timescale of decades with four other tree-ring-dated glacial histories from across the northern Gulf of Alaska. This coastal northeastern Pacific glacial record reveals the structure of the‘Little Ice Age’ in the region and provides a strong basis for comparison with other proxy climate records spanning the past 1000 years.
Lucid Perspectives on the Art of Physical Science Teaching from the South African Context

This paper presents the literature reviewed to articulate lucidly the nature of science, the purpose of teaching science, general teaching challenges in physical science as well as teaching as an art in the context of teaching in the high school. The teaching of science involves many facets such as the nature of science and the nature of teaching challenges in physics. The purpose of this presentation is to add into the resources for in-service training. The paper should induce discussions within the community of practice in the physical science as to how facets involved in the crafting of the art of teaching physical science shape it. It is also envisaged that the presentation should form some basis for further studies that focus on the indicated facets on how they shape the teachers art in practice which should in turn influence further research on the kind of appropriate in-service training to hone the teacher’s art. DOI: 10.5901/mjss.2014. v5n10p358
Modeling 4D Human-Object Interactions for Event and Object Recognition

Recognizing the events and objects in the video sequence are two challenging tasks due to the complex temporal structures and the large appearance variations. In this paper, we propose a 4D human-object interaction model, where the two tasks jointly boost each other. Our human-object interaction is defined in 4D space: i) the co occurrence and geometric constraints of human pose and object in 3D space, ii) the sub-events transition and objects coherence in 1D temporal dimension. We represent the structure of events, sub-events and objects in a hierarchical graph. For an input RGB-depth video, we design a dynamic programming beam search algorithm to: i) segment the video, ii) recognize the events, and iii) detect the objects simultaneously. For evaluation, we built a large-scale multiview 3D event dataset which contains 3815 video sequences and 383,036 RGBD frames captured by the Kinect cameras. The experiment results on this dataset show the effectiveness of our method.
Self-Monitoring and Ethnic Group Membership

In support of theorising about differences in cultural conditioning with regards to self-presentation in social situations, the self-monitoring scores of 105 Chinese and 124 New Zealand students were compared. As predicted, Chinese reported significantly higher self-monitoring than New Zealanders and the effect was independent of sex and socioeconomic status.
Can Physical Activity Moderate the Relationship between School Related Stress and Health Complaints among Japanese Elementary School Children

This study examined whether subjective health complaints were associated with school-related stress and physical activity among Japanese 6th grade school children and determined the influence of physical activity on the relationship between school-related stress and health complaints. In addition, other health practices were examined as moderators of the association between stress and health complaints. A self-administered questionnaire was conducted for 1,978 pupils at 25 public elementary schools throughout Okinawa, Japan. As a result of two-way analysis of variance, school-related stress showed a significant main effect on health complaints among both boys and girls. However, physical activity did not show a main effect on health complaints among either boys or girls. There was also no observed interaction between school-related stress and physical activity on health complaints. Other health practices had significant main effects on health complaints in this age group. Pupils who slept for 7-8 hours, ate breakfast everyday, watched TV for less than 4 hours a day, or played video games for less than 4 hours a week were less likely to report health complaints. However, there was no observed interaction between school-related stress and each health practice on health complaints. This study suggests that physical activity in this age group has no direct or buffering effects on health outcomes.