Miracle-dz/UniFAR-FTUs huggingface dataset:
Mining frequent cross-graph quasi-cliques

Joint mining of multiple datasets can often discover interesting, novel, and reliable patterns which cannot be obtained solely from any single source. For example, in bioinformatics, jointly mining multiple gene expression datasets obtained by different labs or during various biological processes may overcome the heavy noise in the data. Moreover, by joint mining of gene expression data and protein-protein interaction data, we may discover clusters of genes which show coherent expression patterns and also produce interacting proteins. Such clusters may be potential pathways. In this article, we investigate a novel data mining problem, mining frequent cross-graph quasi-cliques, which is generalized from several interesting applications in bioinformatics, cross-market customer segmentation, social network analysis, and Web mining. In a graph, a set of vertices S is a γ-quasi-clique (0 < γ ≤ 1) if each vertex v in S directly connects to at least γ ṡ (|S| − 1) other vertices in S. Given a set of graphs G1, …, Gn and parameter min_sup (0 < min_sup ≤ 1), a set of vertices S is a frequent cross-graph quasi-clique if S is a γ-quasi-clique in at least min_sup ṡ n graphs, and there does not exist a proper superset of S having the property. We build a general model, show why the complete set of frequent cross-graph quasi-cliques cannot be found by previous data mining methods, and study the complexity of the problem. While the problem is difficult, we develop practical algorithms which exploit several interesting and effective techniques and heuristics to efficaciously mine frequent cross-graph quasi-cliques. A systematic performance study is reported on both synthetic and real data sets. We demonstrate some interesting and meaningful frequent cross-graph quasi-cliques in bioinformatics. The experimental results also show that our algorithms are efficient and scalable.
Schools for change: a perspective on school improvement in Pakistan

This article focuses on the deeply unsatisfactory state of public and private schooling in a developing country, Pakistan, and the half-hearted measures employed at improving these schools. In the process, the author explores the negative aspects of the ways in which change has been effected in the country's education system and why these reasons have failed to produce the required results. The `change' factor in education has its own dynamics, and these are highlighted in relation to how change can be brought about in Pakistan's failing school system. Solutions need to be system-wide and then painstakingly monitored and allowed to take hold for any viable improvement to take place.
Developing a team performance framework for the intensive care unit*

Objective:There is a growing literature on the relationship between teamwork and patient outcomes in intensive care, providing new insights into the skills required for effective team performance. The purpose of this review is to consolidate the most robust findings from this research into an intensive care unit (ICU) team performance framework. Data Sources:Studies investigating teamwork within the ICU using PubMed, Science Direct, and Web of Knowledge databases. Study Selection:Studies investigating the relationship between aspects of teamwork and ICU outcomes, or studies testing factors that are found to influence team working in the ICU. Data Extraction:Teamwork behaviors associated with patient or staff-related outcomes in the ICU were identified. Data Synthesis:Teamwork behaviors were grouped according to the team process categories of “team communication,” “team leadership,” “team coordination,” and “team decision making. ” A prototype framework explaining the team performance in the ICU was developed using these categories. The purpose of the framework is to consolidate the existing ICU teamwork literature and to guide the development and testing of interventions for improving teamwork. Conclusions:Effective teamwork is shown as crucial for providing optimal patient care in the ICU. In particular, team leadership seems vital for guiding the way in which ICU team members interact and coordinate with others.
The environmental dependence of properties of galaxies around the RDCSJ0910+54 cluster at z =1.1

We report on the environmental dependence of properties of galaxies around the RDCSJ0910+54 cluster at z = 1.1. We obtained multi-band wide-field images of the cluster with Suprime-Cam and MOIRCS on Subaru and WFCAM on UKIRT. Also, an intensive spectroscopic campaign was carried out using LRIS on Keck and FOCAS on Subaru. We collected 161 spectra with secure redshifts, with which we calibrated a larger sample of photometric redshifts. We discover a possible large-scale structure around the cluster in the form of three clumps of galaxies. Two out of the three newly discovered clumps of galaxies are detected as extended X-ray sources, suggesting that they are bound systems. There seem to be filaments of galaxies in between the clumps. This is potentially one of the largest structures found so far in the z > 1 Universe. We then examined stellar populations of galaxies in the structure. First, we quantified the color-radius relation. Red galaxies have already become the dominant population in the cores of rich clusters at z ∼ 1, and the fraction of red galaxies has not strongly changed since then. The red fraction depends on the richness of clusters in the sense that it is higher in rich clusters than in poor groups. We confirm that this trend is not due to possible biases in photometric redshifts. Next, we examined red sequence galaxies. The luminosity function of red galaxies in rich clusters is consistent with one in local clusters. On the other hand, the luminosity function of red galaxies in poor groups shows a deficit of faint red galaxies. This confirms our earlier findings that galaxies follow an environment-dependent down-sizing evolution. Interestingly, the truncation magnitude of the red sequence appears brighter than found in the RDCS J1252−29 field at z = 1.24. This suggests that there is a large variation in the evolutionary phases of galaxies in groups with similar masses. Further studies of high redshift clusters will be a promising way of addressing the role of nature and nurture effects in shaping the environmental dependence of galaxy properties observed in the local Universe.
Sliding-mode-based impedance controller for bilateral teleoperation under varying time-delay

In the previous works, we have proposed new control schemes based on the sliding mode control and impedance control in order to cope with varying time delays. However, the previous controller needs local compliance to reduce contact forces between the slave and environment. In this paper, we modify the previous one to have a sliding surface for the slave include an impedance model. Since the nonlinear gain of the sliding controller is independent of the time delay as in the previous proposed controllers, it is not necessary to measure or estimate the time delay to implement the controller. The validity of the proposed control scheme is demonstrated by experiments with a 1-DOF master/slave system connected through the Internet.
Sleep and its regulation in zebrafish

Abstract The function of sleep remains a central enigma of modern biology, in spite of the obvious importance of sleep for normal physiology and cognition. The zebrafish has emerged as a promising new model for studying sleep, its changes with age, and the impact of sleep alterations on cognitive function. Recent studies of this diurnal vertebrate have provided new insights into the dual role of the pineal hormone melatonin and its receptors, regulating sleep in diurnal vertebrates through both homeostatic and circadian mechanisms. Research in zebrafish has also revealed interactions between melatonin and the hypocretin/orexin system, another important sleep-wake modulator. Future investigations should benefit from the conservation in zebrafish of mechanisms that regulate normal sleep, our extensive knowledge of their molecular biology, the availability of multiple transgenic and mutant phenotypes, and the feasibility of applying sensitive in vivo imaging techniques to record sleep-related neuronal activity in these optically transparent subjects. The established sensitivity of zebrafish to many pharmacological hypnotics should also contribute to the development of new, safe and effective sleep medications.
Up-Regulation of 91H Promotes Tumor Metastasis and Predicts Poor Prognosis for Patients with Colorectal Cancer

Background Long noncoding RNAs (lncRNAs) play widespread roles in gene regulation and cellular processes. However, the functional roles of lncRNAs in colorectal cancer (CRC) are not yet well elucidated. The aim of the present study was to measure the levels of lncRNA 91H expression in CRC and evaluate its clinical significance and biological roles in the development and progression of CRC. Methods 91H expression and copy number variation (CNV) were measured in 72 CRC tumor tissues and adjacent normal tissues by real-time PCR. The biological roles of 91H were evaluated by MTT, scratch wound assay, migration and invasion assays, and flow cytometry. Results 91H was significantly overexpressed in cancerous tissue and CRC cell lines compared with adjacent normal tissue and a normal human intestinal epithelial cell line. Moreover, 91H overexpression was closely associated with distant metastasis and poor prognosis in patients with CRC, except for CNV of 91H. Multivariate analysis indicated that 91H expression was an independent prognostic indicator, as well as distant metastasis. Our in vitro data indicated that knockdown of 91H inhibited the proliferation, migration, and invasiveness of CRC cells. Conclusions 91H played an important role in the molecular etiology of CRC and might be regarded as a novel prognosis indicator in patients with CRC.
Neurorestorative Effects of Constraint-Induced Movement Therapy after Stroke: An Integrative Review

Stroke has been considered as one of the main causes of death and of motor and cognitive sequels. Especially, many patients with upper limb hemiparesis improved their motor action and showed meaningful cortical changes after treatment with constraint-induced movement therapy. Therefore, this review aims to verify the literature about neuroimaging and behavioral evidences in the cortical reorganization through the use of the constraint-induced movement therapy. So, we conducted the literature research in indexed journals from many databases like Pubmed, Medline, Cochrane Database, Lilacs and Scielo. We concluded that the behavioral and neuroimaging studies using traditional and modified constraint-induced movement therapy promote cortical reorganization.
Two-Year Study of Emotion and Communication Patterns in a Highly Polarized Political Discussion Forum

The article presents analysis of a Polish Internet political discussion forum, characterized by significant polarization and high levels of emotion. The study compares samples of discussions gathered at three periods during a 2-year time, during which events occurred that significantly increased the already strong political division of Polish society (the sudden death of the President in a plane crash, snap elections, accusations of assassination and treason). Despite these circumstances, we observe a remarkable stability of individual political support. Extensive discussions among the forum users did not lead to changes in their political affiliations or specific opinions. In contrast, emotions expressed by the forum users, mainly negative, were found to vary from post to post and between the discussion threads. An automatic emotion recognition algorithm is presented, giving results closely corresponding to human evaluations. The authors also show that differences in a user interface between the two alternative forum webpages, especially effects of features promoting direct one-to-one communication, have significant impact on message content and decrease negative emotions. Implications of such changes on promoting communication across a political divide are discussed.
Recovering Workflows from Functional Tests

When enterprises outsource maintenance of IT systems to service providers, thorough knowledge acquisition is critical to the success of the engagement. Program comprehension contributes significantly to acquiring knowledge of the IT systems. It is a common practice to execute test scripts to identify critical scenarios in the system and then trace these as flows in the programs. Instead of executing test scripts, we propose the novel idea of mining workflows from test scripts to construct formal process models. The global view provided by the mined model can not only help transition teams gain high level understanding of the system but also help identify critical flows. We also suggest categorization of test cases using supervised learning to improve comprehension.
Scalable and Reliable Data Broadcast with Kascade

Many large scale scientific computations or Big Data analysis require the distribution of large amounts of data to each machine involved. That distribution of data often has a key role in the overall performance of the operation. In this paper, we present Kascade, a solution for the broadcast of data to a large set of compute nodes. We evaluate Kascade using a set of large scale experiments in a variety of experimental settings, and show that Kascade: (1) achieves very high scalability by organizing nodes in a pipeline; (2) can almost saturate a 1 Gbit/s network, even at large scale; (3) handles failures of nodes during the transfer gracefully thanks to a fault-tolerant design.
LoSeCo: Location-based search computing for pervasive device augmentation

Understanding human intention and performing different activities automatically is one of the key problems in pervasive computing. In this paper, a new location-based search computing framework (LoSeCo) is proposed to allow one's pervasive device to augment search devices. The objective of our problem is to recognize the real-time user goal through goal inference from traditional Wi-Fi localization techniques. We use accelerometer-based tracking to reduce the effort we need to collect Wi-Fi signals and save battery power consumption effectively. With the help of short-range search, the goal recognition module is enhanced, compared to previous “locationonly” approaches. Therefore, we could augment our mobile devices by automatically analyzing our needs and connecting to corresponding devices. Experimental results on real-world wireless network environments validate the effectiveness of our approach and that even a rough localization accuracy can meet the need of QoS (Quality of Service) in search computing behaviors.
Platelet-activating factor improves intrauterine insemination outcome.

OBJECTIVE Our purpose was to investigate intrauterine insemination pregnancy rates after human spermatozoa exposure to platelet-activating factor. STUDY DESIGN Spermatozoa were incubated with platelet-activating factor in sperm-washing medium before intrauterine insemination. Patients whose sperm were incubated with sperm-washing medium alone served as controls. Pregnancy outcome was determined by ultrasonography (fetal heartbeat). RESULTS Patients whose sperm were treated with exogenous platelet-activating factor had a significantly (P <.05) higher pregnancy rate (40%) than patients (20%) not receiving treatment. CONCLUSION Inclusion of platelet-activating factor into a semen processing protocol, before intrauterine insemination, will significantly improve pregnancy rates. Platelet-activating factor may have a stimulatory effect on centriole-intact spermatozoa, enhancing their motility and fertilization success and resulting in improved pregnancy rates. Additional studies will elucidate the reproductive significance of platelet-activating factor activity in spermatozoa and its role in the establishment of pregnancy.
A review of demographic ageing in the UK: opportunities for rural research

Demographic ageing is a global phenomenon. UK policy and research have, until recently, focused on national trends and implications and largely viewed ageing as a ‘pensions and care’ problem. While other and more positive aspects are beginning to be acknowledged, regional, local, and rural impacts remain underinvestigated. This paper, by reviewing the literature from several disciplines and countries, introduces a series of research questions that could usefully inform future geographical inquiry. It argues that the nature, experiences, and consequences of demographic ageing will vary across space, stage in the life course and numerous aspects of our everyday lives. Our current knowledge and understanding are but the tip of the iceberg in terms of the research opportunities that lie ahead. Copyright © 2009 John Wiley & Sons, Ltd.
Three-phase filtered SVPWM motor drive

In the digital implementation, PWM pulses can only change switching states at some specific time instants depending on the system clock frequency. This phenomenon results in the deviation between the desired and the produced phase voltages. Although the deviation is small in each carrier period, the accumulated error will result in large current harmonics for inductive load. In this paper, a high-order filtered SVPWM is proposed for the three-phase motor drive to overcome this problem. By further incorporating the band-stop filter, the specific harmonic component is reduced. Two experiments confirm the reliability and applicability of the proposed modulator.
Effects of delayed sidetone on the speech of aphasic, dysarthric, and mentally retarded subjects.

Duration, amplitude, and phonetic errors were measured to test the effects of delayed and normal sidetones on the speech of 10 aphasic, 10 dysarthric, and 10 mentally retarded subjects. Additional variables included structurally correct semantically real and unreal kernel, negative, query, and negative‐query sentences. Tested were the differences between the three groups of subjects under conditions of 0.18‐sec delay and normal delay in sidetone, three degrees of grammaticalness, and the four syntactic classes. The delayed sidetone affected the mentally retarded and dysarthric subjects more than the aphasics. The ratio between the duration under the 0.18‐sec delayed sidetone and normal sidetone conditions for aphasic subjects was 1.20:1, for dysarthric 1.62:1, and for mentally retarded, 1.72:1. The grammatical sentences were affected less than the ones with unreal verbs. Sentences with unreal nouns, verbs, and objects were maximally affected. The grammatical classes were affected from least to the most in this order: kernel, query, negative, and negative‐query.
On the modeling of natural vocal emotion expressions through binary key

This work presents a novel method to estimate natural expressed emotions in speech through binary acoustic modeling. Standard acoustic features are mapped to a binary value representation and a support vector regression model is used to correlate them with the three-continuous emotional dimensions. Three different sets of speech features, two based on spectral parameters and one on prosody are compared on the VAM corpus, a set of spontaneous dialogues from a German TV talk-show. The regression analysis, in terms of correlation coefficient and mean absolute error, show that the binary key modeling is able to successfully capture speaker emotion characteristics. The proposed algorithm obtains comparable results to those reported on the literature while it relies on a much smaller set of acoustic descriptors. Furthermore, we also report on preliminary results based on the combination of the binary models, which brings further performance improvements.
Disengaging From Unattainable Career Goals and Reengaging in More Achievable Ones

Participants were 181 university students who completed measures of career development (self-efficacy, perceived barriers, distress, planning, and exploration) and goal adjustment capacity (disengagement and reengagement). We expected (a) that when contemplating unachievable goals, those with a higher capacity to adjust their goals (i.e., to disengage and reengage) would report less distress, more career planning, and more exploration; and expected (b) that the relationships between goal adjustment and the outcome variables (distress, planning, and exploration) would be moderated by self-efficacy and perceptions of barriers. We found that those with a higher capacity to adjust their goals by disengaging and reengaging reported more exploration. Less distress was associated with disengagement, but not reengagement, whereas more planning was associated with reengagement, but not disengagement. Additionally, we found moderating effects for self-efficacy and perceptions of barriers; that is, having higher levels of efficacy and perceiving fewer barriers protected when goal adjustment capacity was lower.
Sex-Role Stereotypes and Televised Models of Emotion

In view of the fact that television may be an important medium for the learning of sex-role stereotypes, two viewers monitored 280 hours of CBS and NBC network television divided into 10-min. segments between 8:00 a.m. and 10:OO p.m. during a 2-wk. period in 1977 to see what emotions were portrayed in what situations by male and female characters. As hypothesized, traditional sex-role stereotypes were largely supported. With 93% agreement on the classification of emotions, the raters found that the 247 male and 223 female characters differed in theu emotions expressed, with 57% of the males but 75% of the females being happy, 13% of the males and 17% of the females being unhappy, and 30% of the males but only 8% of the females showing no emotion (xr' = 49.31, p < .001). With 100% agreement on the classification of situation, the raters found rhar female characters appeared more frequently than males in the situations of Home, Romance, and Physical Appearance and males appeared more frequently than females in the categories of Work, Car, and Sports (all x12 1 7.80, p <. .01). No differences were found in the Eating/Drinking, Money, Talk Show, Toys, or other categories. In both the Work and Physical Appearance categories, women were significantly more likely to be portrayed as happy than men (both xl' -' 7.84, p < .01). Women characters were more likely than males to appear to be between the ages of 20 to 29 yr. or 30 to 37 yr. , whereas males were more common than females in the 50 to 59 yr. age bracket (XI? k 4.21, p < .05). Children of either sex were more likely to be portrayed as happy than adults (x12 = 18.11, 2, < .001). The pattern of women being more emotional and spending their time on home, romance, and physical appearance while stoic men are at work or sports events with their cars certainly suggests that television continues to perpetuate sex-role stereotypes. Those who find this pattern depressing might want to join the 95% of children or, better yet, the 77% of those who were Eating/ Drinking who were classified as happy. Apparently, stereotypes of childhood as the happiest time of life and of "eat, drink and be merry" are just as common on television as ones concerning sex roles.
The Residual Impact of Avoided Television Advertising

This study reports the results of a laboratory experiment that compared the effects of partial exposure associated with six major avoidance modes, including DVR (digital video recorder) ad skipping, against each other and against full-attention exposures as controls. The most common form of avoidance, ignoring advertisements (cognitive avoidance), has effects equal to fast-forwarding. Prior exposure increases effectiveness of recall as partial exposures, including fast forwarding, can act as reminder ads, but prior exposure also increases avoidance. Doubling the message of an ad in its sound track increases effectiveness and is the only way to counteract the effects of cognitive avoidance.