Miracle-dz/UniFAR-FTUs huggingface dataset:
Large Eddy Simulations of Supersonic Turbulence

Based on ideas by Woodward et al., a subgrid scale model that is applicable to highly compressible turbulence is presented. Applying the subgrid scale model in large eddy simulations of forced supersonic turbulence, the bottleneck effect is largely reduced and, thereby, approximate scaling laws can be obtained at relatively low numerical resolution. In agreement with previous results from PPM simulations without explicit subgrid scale model, it is found that the energy spectrum function for the velocity field with fractional density-weighing, rho^(1/3)u, varies substantially with the forcing, at least for the decade of wavenumbers next to the energy-containing range. Consequently, if universal scaling of compressible turbulence exists, it can be found on length scales much smaller than the forcing scale only.
Rethinking Organizational Commitment in Relation to Perceived Organizational Power and Perceived Employment Alternatives

The detachment of moral and affective motives from the actual behavior of loyalty and active commitment is recognized and expected in cross cultural research into organizational commitment. However, this separation is almost impossible to make from the perspective of western and managerially biased mainstream research into organizational commitment. Following the cross cultural perspective, the thesis of this article is that organizational commitment is not a state of mind but a behavior of choice. It is the unequivocal behavior of being obligated, regardless of individual goals, sentiments or moral values, particularly in the worst conditions, when organizations are unable to reward it. In a study of 361 respondents from four organized systems into the impact of perceived organizational power (POP) and perceived employment alternatives (PEA) on behavior of organizational commitment (OCb), it was found that OCb was dependent partially and in a non-linear manner on POP and PEA. However, the part that was not explained by these independent variables leaves ample room for a different possible explanation of OC b. For example, many people in this study chose active modes of positive commitment, in spite of having perceived employment alternatives and possessing only a small amount of perceived organizational power. This suggests that even during bad times for their employing organization, employees may not automatically rush to take advantage of their employment alternatives, but, on the contrary, may continue to contribute their knowledge, skills and abilities voluntarily, and not as tactics designed to protect their organizational assets. After all, pure commitment is an obligation to do something that is not necessarily agreeable or gainful. This lesson is well known in non-western cultures.
The complementarities of multi-lateralism and regionalism and income convergence: ASEAN and SAARC

This paper proposes the hypothesis that multilateralism and regionalism are complementary, and that regional income convergence is likely with a like minded and committed regionalism that often has links geographically and culturally. The association between international trade, income per capita, and regional income convergence in founder members of ASEAN and SAARC, is explored by applying the Lumsdaine, and Papell approach. The causal relationships between the above variables are also studied in respective trade blocs by using Granger causality tests. The conclusion is that global reforms have had a greater impact on increasing trade for both trade blocs and induced convergence only in ASEAN-5 countries. The experience of ASEAN countries shows a two-way causal relationship between the flow from trade to regional income convergence, and vice versa. There is no evidence in SAARC countries for income convergence and causality. Keywords—ASEAN-5, SAARC-5, trade liberalisation, income convergence, structural breaks and causality.
WL++: Code Generation of Multi-platform Mobile Clients to Restful Back-Ends

With the proliferation of mobile devices and the adoption of mobile applications in most daily-life activities, it is necessary for mobile-application construction to become more efficient and systematic and less costly. In this paper, we describe a code-generation environment, namely WL++, for mobile applications accessing Restful back-ends. Our framework (a) extracts the data models of the to-be-generated application from the back-end APIs or from existing resource schemas, (b) enables developers to extend the application model and annotate it with information regarding the application's user-interaction behavior through a graphical editor, and (c) transforms it into a mobile application, through a template-refinement process, that can be deployed on a variety of platforms.
STReSS: A Practical Tactile Display System with One Millimeter Spatial Resolution and 700 Hz Refresh Rate

A tactile display system is described which can produce 'tac- tile movies', that is, rapid sequences of tactile images refreshed at a rate of 700 Hz. The display uses an array of one hundred laterally moving skin contactors designed to create a time-varying programmable strain field at the skin surface. The density of the array is of one contactor per millimeter square, resulting in a device with high spatial and temporal resolution. The paper describes the construction method and the drive electronics. It also reports informally on initial test patterns and on the resulting tactile sensations.
Interfirewall optimization across administrative domains for enabling privacy preserving and security

Enabling security over internet, firewalls play a major role. It checks all incoming or outgoing packet to decide whether to accept or discard the packet based on its policy. Firewall optimization focuses on either intra-firewall or inter-firewall optimization within one administrative domain where the privacy of firewall policies is not a concern. Explore interfirewall optimization across administrative domains for the first time. The key technical challenge is that firewall policies cannot be shared across domains because a firewall policy contains confidential information and even potential security holes, which can be exploited by attackers. Using interfirewall redundant rule which overcome the prior problem and enable the interfirewall optimization across administrative domains. Also propose the first cross-domain cooperative firewall (CDCF) policy optimization protocol. The optimization process involves cooperative computation between the two firewalls without any party disclosing its policy to the other. We implemented our protocol in Java and conducted extensive evaluation.
Comparative analysis of the reliability of job performance ratings

This study used meta-analytic methods to compare the interrater and intrarater reliabilities of ratings of 10 dimensions of job performance used in the literature; ratings of overall job performance were also examined. There was mixed support for the notion that some dimensions are rated more reliably than others. Supervisory ratings appear to have higher interrater reliability than peer ratings. Consistent with H. R. Rothstein (1990), mean interrater reliability of supervisory ratings of overall job performance was found to be . 52. In all cases, interrater reliability is lower than intrarater reliability, indicating that the inappropriate use of intrarater reliability estimates to correct for biases from measurement error leads to biased research results. These findings have important implications for both research and practice.
Scalable Kernel Clustering: Approximate Kernel k-means

Kernel-based clustering algorithms have the ability to capture the non-linear structure in real world data. Among various kernel-based clustering algorithms, kernel k-means has gained popularity due to its simple iterative nature and ease of implementation. However, its run-time complexity and memory footprint increase quadratically in terms of the size of the data set, and hence, large data sets cannot be clustered efficiently. In this paper, we propose an approximation scheme based on randomization, called the Approximate Kernel k-means. We approximate the cluster centers using the kernel similarity between a few sampled points and all the points in the data set. We show that the proposed method achieves better clustering performance than the traditional low rank kernel approximation based clustering schemes. We also demonstrate that its running time and memory requirements are significantly lower than those of kernel k-means, with only a small reduction in the clustering quality on several public domain large data sets. We then employ ensemble clustering techniques to further enhance the performance of our algorithm.
NIR sensitive wavelength selection based on different methods

Near infrared (NIR) sensitive wavelengths of soluble solids content (SSC) were selected based on genetic algorithms (GAs) and interval partial least square (iPLS) in Nanfeng mandarin fruits, the better result was obtained with sensitive wavelengths of 642–787nm, 861–1152nm and 1225–1368nm by iPLS. Then 30 unknown samples were used to evaluate performance of the model built with sensitive wavelengths. The correlation coefficient (R) and root mean square error of prediction (RMSEP) were 0.9500 and 0.5354, respectively. It was demonstrated NIR spectroscopy combined with sensitive wavelengths selection algorithm was a powerful tool to rapidly determine SSC of Nanfeng mandarin fruits nondestructively.
Do You Recognize Its Brand? The Effectiveness of Online In-Stream Video Advertisements

The effects of ad length, ad position, and ad-context congruity on brand name recognition in an online in-stream video advertising context were investigated. Video ads and video programs were selected from YouTube as stimuli. Findings from a laboratory experiment indicate that long ads enhance recognition. Mid-roll ads lead to better brand name recognition than pre-roll and post-roll ads because of attention spillover. However, a mid-roll ad is futile when the ad is unrelated to the video content. In contrast, post-roll ads can improve brand name recognition in an incongruent context.
Widowhood, Religiousness, and Self-Assessed Well-Being Among Older Adults

ABSTRACT Background: The well-being of older, widowed persons is of concern to aging practitioners, including those in faith-based organizations. Some have suggested that engaging in religious/spiritual activities may mitigate the negative effects of widowhood for older adults. This cross-sectional study examined predictors of self-assessed well-being of widowed and married elders. The aim of this study was to determine whether participation in religious/spiritual activities mediated the relationship between marital status and well-being after controls were instituted. Method: This study is a secondary analysis of data collected for the National Opinion Research Center's 1998 General Social Survey. Analyses are based on 150 married and 120 widowed persons aged 60 or older. We regressed married/widowed status, demographic characteristics, self-reported health, and four measures of religious/spiritual activity on a fouritem index of self-assessed well-being. Results: Widowed elders reported lower levels of well-being than married elders, even after we controlled for sociodemographic characteristics, self-perceived health, and measures of religious/spiritual activity. Socioeconomic status (SES) and self-perceived health had positive relationships with well-being, and frequency of prayer had a negative relationship with well-being. Conclusion: Congregations wishing to improve well-being among widowed and married elders should consider focusing on ministries to improve financial well-being and health and advocacy for programs that benefit low income elders. Church-based programs targeting widowed elders should focus on positive religious coping and prayer.
The importance of networks for newly qualified teachers in upper secondary education

Background and purpose: The interest in raising the competence of teachers through networks and network activities is increasing. This article is based on the voices of four newly qualified teachers who give us the opportunity to listen to experiences in authentic surroundings. The purpose of this article is to gain better insight into the type of networks newly qualified teachers maintain, develop and create to develop as teachers. The research question is: What is the importance of networks for the professional development of newly qualified teachers in upper secondary education? Main argument: The main finding of the article, based on in-depth interviews with four newly qualified teachers, is that being acknowledged by colleagues is decisive for professional development. Furthermore, the school’s programme of meetings to some extent contributes to developing the respect and trust of the newly qualified teachers, who also need to find time and opportunities for reflection in personal networks outside school. The relational and emotional aspects of the teaching profession produce a need for guidance processes where the ethical dilemmas of the profession can be raised. When these dilemmas arise, the newly qualified teachers actively look outside school to grasp opportunities for professional development. The teachers appear to be very active in their own professional development, and they have ambitions to develop as teachers for the benefit of the pupils and the school. Conclusions: Systematic guidance is highlighted as fundamental for these teachers’ learning.
Therapy from a cognitive-behavioural orientation: a case study re-examined

I have been asked to comment on ‘Wendy’s dread: a case study’. This is not straightforward as my preferred therapeutic approaches are underpinned by social and cognitive learning theory among others (Bandura 1977, l986; Palmer 1997) yet the case study was written from a different perspective. This article is likely to reect the tension between different therapeutic approaches and may highlight issues beyond just this particular case study. I can respond only to what the therapist perceived was occurring and what the therapist chose to include in the case study. Obviously this limits my observations and may overlook key therapeutic processes that occurred. There is little indication in the case study about which therapy session is being referred to, apart from beginning, middle, and ending. Therefore, I make a number of assumptions in the following sections. Also, many of the assessment questions I would have normally asked were not covered in the text and probably would not have been asked by the therapist unless a similar approach was being practised.
Privacy and security in environmental monitoring systems

There is today an increasing interest in environmental monitoring for a variety of specific applications, with great impact especially on natural resource management and preservation, economy, and people's life and health. Typical uses encompass, for example, Earth observation, meteorology, natural resource monitoring, agricultural and forest monitoring, pollution control, natural disaster observation and prediction, and critical infrastructure monitoring. While on one hand these systems play an important role in our society, on the other hand their adoption can raise a number of security and privacy concerns, representing a possible obstacle for the development of future environmental applications. In this paper, we analyze the security and privacy issues characterizing both the environmental monitoring infrastructures and the data collected and processed by them. We also provide an overview of possible countermeasures for diminishing the effects of these issues.
Sequential decoding for lossless streaming source coding with side information

The problem of lossless fixed-rate streaming coding of discrete memoryless sources with side information at the decoder is studied. A random time-varying tree-code is used to sequentially bin strings and a Stack Algorithm with a variable bias uses the side information to give a delay-universal coding system for lossless source coding with side information. The scheme is shown to give exponentially decaying probability of error with delay, with exponent equal to Gallager's random coding exponent for sources with side information. The mean of the random variable of computation for the stack decoder is bounded, and conditions on the bias are given to guarantee a finite $\rho^{th}$ moment for $0 \leq \rho \leq 1$. Further, the problem is also studied in the case where there is a discrete memoryless channel between encoder and decoder. The same scheme is slightly modified to give a joint-source channel encoder and Stack Algorithm-based sequential decoder using side information. Again, by a suitable choice of bias, the probability of error decays exponentially with delay and the random variable of computation has a finite mean. Simulation results for several examples are given.
Certification and Borrower Outcomes : Evidence from the Introduction of Bank Loan Ratings

I exploit the introduction of syndicated bank loan ratings by Moody’s and Standard & Poor’s in 1995 to examine (a) which firms value certification by a third-party ratings agency, and (b) the effects of certification on financial and real outcomes of borrowers. I find evidence that larger and younger borrowers are more likely to obtain bank loan ratings, but only if they do not have a credit rating before 1995. I also find that the introduction of bank loan ratings leads to increases in the use of debt by firms that obtain a rating, and in increases in firms’ asset growth and cash acquisitions. These findings are strongest among firms that did not have an existing credit rating before bank loan ratings were introduced. The findings suggest that third-party certification services can improve the allocation of capital in the economy, and can increase real outcomes for borrowers that obtain them. *5807 South Woodlawn Avenue, Chicago, IL 60637; email: amir.sufi@chicagogsb.edu; phone: 773 702 6148; fax: 773 702 0458. I thank Douglas Diamond, Atif Mian, Francisco Perez-Gonzalez, and Joshua Rauh for helpful comments.
WHAT COUNTS AS TEACHING

ABSTRACT Any attempt at the assessment and evaluation of teaching must first address the question: “What is teaching? ” Evaluating teachers simply in terms of what is learned is unsatisfactory because students learn without being taught and they even (perhaps usually) compensate for bad teaching. Most people would agree that there is more to teaching than simply telling students things they don't know. But what other teaching activities go on in seminars, tutorials, lectures, laboratories, workshops and studios? Furthermore, the activities of teaching surely extend beyond the times and places where “class contact” happens. Teachers are teaching when they are writing laboratory schedules and assignment notes. If the oral comments on an essay given in a tutorial counts as teaching then so must the written comments that serve the same purpose. The paper proposes a model of the teaching/learning system which categorises the various essential activities of both teaching and learning and shows their various inte.
Analysis of Fyn function in hemostasis and αIIbβ3-integrin signaling

Recent studies have shown that Src-family kinases (SFKs) play an important role in mediating integrin signalling, and the β3 subunit of αIIbβ3 integrin has been shown to interact with multiple SFK members. Here, we analyzed the interactions and functional consequences of Fyn and Src binding to αIIbβ3. Fyn associated with the β3 subunit in resting and thrombin-aggregated platelets, whereas interaction between Src and αIIbβ3 was seen predominantly in resting but not in thrombin-aggregated platelets. We have also observed that Fyn but not Src localized to focal adhesions in CHO cells adherent to fibrinogen through αIIbβ3. On the basis of these differences, we wanted to determine the sequence requirements for the interaction of Fyn and Src within the β3-cytoplasmic domain. Whereas Src association required the C-terminal region of β3, Fyn continued to interact with mutants that could no longer associate with Src and that contained as few as 13 membrane-proximal amino acids of the β3-cytoplasmic tail. Using deletion mutants of β3-cytoplasmic tails expressed as GST-fusion proteins, we narrowed down the Fyn-binding site even further to the amino acid residues 721-725 (IHDRK) of the β3-cytoplasmic domain. On the basis of these observations, we explored whether Fyn–/– mice exhibited any abnormalities in hemostasis and platelet function. We found that Fyn–/– mice significantly differed in their second bleeding times compared with wild-type mice, and platelets from Fyn–/– mice exhibited delayed spreading on fibrinogen-coated surfaces. Using mutant forms of Fyn, it appears that its kinase activity is required for its localization to focal adhesions and to mediate αIIbβ3-dependent cell spreading. Our results suggest that Fyn and Src have distinct requirements for interaction with αIIbβ3; and, consequently, the two SFK can mediate different functional responses.
The Impact of Stroke Nurse Navigation on Patient Compliance Postdischarge

Purpose: The purpose of this study was to describe the impact a stroke nurse navigation program has on concurrent chart reviews and patient compliance postdischarge. Design: Phase I: Concurrent chart review of The Joint Commission Primary Stroke Center core measures for ischemic stroke patients. Phase II: Longitudinal study of 100 ischemic stroke patients discharged to home. Methods: Telephone surveys were conducted at prescribed intervals posthospital discharge (Phase II). Surveys focused on medication compliance, follow-up medical appointment compliance, and neurovascular emergency department (ED) visits/readmissions. Findings: Phase I trends included increased stroke performance measures compliance. Phase II favorable trends included increased medication compliance (>98%), increased follow-up appointments (100%), decreased rate of neurovascular ED visits/rehospitalizations (3%), and improvement in activities of daily living and quality of life measures through 12 months postdischarge. Conclusions: Stroke nurse navigation increased conformity of stroke performance measures and stroke patient discharge compliance through 12 months postdischarge.
An Improved Buffer Sharing Scheme for ATM Switches under Bursty Traffic

ATM has been proposed as the technique that will support B-ISDN services of the future. Thus the high-speed fabrics that switch the fixed-size ATM cells at switching nodes in the network, need to have efficient buffer management schemes to control size and therefore cost of buffers. Most of the buffer management schemes proposed to date do not perform well under non-uniform traffic. But it is well accepted by now that future ATM traffic is very likely to be non-uniform, although the nature of the non-uniformity is likely to vary over time. Each of the buffer management schemes proposed for the non-uniform case, performs better than the other for some values of the traffic parameters. In this paper we have proposed a new buffer-management scheme, called Hot-Spot-Push-Out (HSPO) which performs uniformly better than all the previously proposed schemes under bursty traffic. This is demonstrated by simulation.