Miracle-dz/UniFAR-FTUs huggingface dataset:
Regulation of Motivation: Students’ Motivation Management in Online Collaborative Groupwork

Background Online learning is becoming a global phenomenon and has a steadily growing influence on how learning is delivered at universities worldwide. Motivation of students, however, has become one of the most serious problems in one important aspect of online learning—online collaborative groupwork or online group homework. It is surprising to note that few empirical studies have focused on how to enhance and sustain student motivation to work together in online learning environments. Purpose The propose of the present study is to propose and test empirical models of variables posited to predict students’ motivation management in online groupwork, with the models informed by (a) research and theorizing on regulation of motivation and (b) findings from online groupwork that alluded to a number of factors that may influence motivation management in online learning environments. Research Design The study reported here used cross-sectional survey data. Participants The participants were 150 graduate students from 46 online groups in the southeastern United States. Results Results from the multilevel analyses revealed that most of the variance in group-work motivation management occurred at the student level, with online groupwork interest as the only significant predictor at the group level. At the student level, the variation in groupwork motivation management was positively related to student initiative, including arranging the environment, managing study time, and help seeking. In addition, group-work motivation management was positively related to feedback from the instructor and peers. Conclusion As most of the variance in online groupwork motivation management occurred at the student level rather than at the group level, online groupwork motivation management was largely a function of individual student characteristics and experiences. The present study further suggests that feedback and student initiative (arranging the environment, managing study time, and help seeking) play an important role in online group-work motivation management. Consequently, it would be beneficial to promote feedback among the instructor and group members in the online groupwork process. In addition, it would be beneficial to encourage students to take more initiative in online groupwork settings to better manage their motivation.
Soluble silk-like organic matrix in the nacreous layer of the bivalve Pinctada maxima.

Nacre organic matrix has been conventionally classified as both 'water-soluble' and 'water-insoluble', based on its solubility in aqueous solutions after decalcification with acid or EDTA. Some characteristics (aspartic acid-rich, silk-fibroin-like content) were specifically attributed to either one or the other. The comparative study on the technique of extraction (extraction with water alone vs. demineralization with EDTA) presented here, seems to reveal that this generally accepted classification may need to be reconsidered. Actually, the nondecalcified soluble organic matrix, extracted in ultra-pure water, displays many of the characteristics of what until now has been called 'insoluble matrix'. We present the results obtained on this extract and on a conventional EDTA-soluble matrix, with various characterization methods: fractionation by size-exclusion and anion-exchange HPLC, amino acid analysis, glycosaminoglycan and calcium quantification, SDS/PAGE and FTIR spectroscopy. We propose that the model for the interlamellar matrix sheets of nacre given by Nakahara [In: Biomineralization and Biological Metal Accumulation, Westbroek, P. & deJong, E.W. , eds, (1983) pp. 225-230. Reidel, Dordrecht, Holland] and Weiner and Traub [Phil. Trans. R. Soc. Lond. B (1984) 304, 425-434] may no longer be valid. The most recent model, proposed by Levi-Kalisman et al. [J. Struct. Biol. (2001) 135, 8-17], seemed to be more in accordance with our findings.
First Order Temperature Dependent Phase Transition in a Monoclinic Polymorph Crystal of 1,6-Hexanedioic Acid: An Interpretation Based on the Landau Theory Approach

Crystals of 1,6-hexanedioic acid (I) undergo a temperature-dependent reversible phase transition from monoclinic P21/c at a temperature higher than the critical temperature (Tc) 130 K to another monoclinic P21/c at temperature lower than Tc. The phase transition is of first order, involving a discontinuity and a tripling of the b-axis at Tc whereas the other unit cell parameters vary continuously. The transition is described by the phenomenological Landau theory. The crystal structure analyses for data collected at 297(2) K and 120.0(1) K show that there is half of a molecule of (I) in the asymmetric unit at 297(2) K whereas there are one and a half molecules of (I) in the asymmetric unit at 120.0(1) K. At both temperatures, 297(2) and 120.0(1) K, intermolecular O-H···O hydrogen bonds link the molecules of I into infinite 1D chains along [101] direction. However there are significantly more O-H···O hydrogen bonds presented in the 120.0(1) K polymorph, thereby indicating this phase transition is negotiated via hydrogen bonds. The relationship of the conformational changes and hydrogen bonding for these two polymorphs are explained in detail.
Fire and resprouting in Mediterranean ecosystems: insights from an external biogeographical region, the mexical shrubland.

We investigated modes of regeneration of dominant species of the mexical vegetation after fire. The mexical shrubland shows a remarkable structural, morphological, and floristic similarity to Mediterranean-type vegetation and is considered a relict of the Madro-Tertiary Geoflora under a non-Mediterranean climate. This vegetation provides an ideal scenario to test the role of fire in Mediterranean ecosystems because historical fire occurrence is absent and the species assembly is constituted mostly by Madro-Tertiary elements and Neotropical species (some of them, endemic species from Mexico). The existence of congeneric species of the California chaparral allows us to determine the regeneration ability of these communities after fire in relation to resprouting and seeding strategies, which are widespread modes reported in the Mediterranean-type vegetation. By the experimental application of fire in the two biogeographical groups of species, we tested the hypothesis that low resprouting ability of California congeneric species (Madro-Tertiary species) after fire would indicate that fire has played an important selective force in the resprouting habit. A low resprouting ability in the Neotropical group of species would suggest that fire has molded the set of species dominating fire-prone environments.Our results indicated that resprouting is a widespread trait in the mexical species characterized by the presence of lignotubers and burls. Resprouting can be considered an ancient trait, probably linked to losses of aboveground biomass, that became a pre-adaptation in Mediterranean fire-prone communities. The Neotropical group of species showed less ability to regenerate after fire, and small plants were more likely to die after disturbance in this group than in the Madro-Tertiary group. The resprouting feature and the seeder strategy of other species after a fire in the mexical shrubland are similar to Mediterranean-type ecosystems, emphasizing their common origin and the relevance of phylogenetic and biogeographical studies to explain current patterns of vegetation.
Embedded Type-2 FLC for Real-Time Speed Control of Marine and Traction Diesel Engines

Marine propulsion and traction diesel engines operate in highly dynamic and uncertain environments. The current speed controllers for marine/traction diesel engines are based on PID and type-1 fuzzy logic controllers (FLCs) which cannot fully handle the uncertainties associated with such dynamic environments. Type-2 FLCs can handle such uncertainties to produce a better control performance. However, type-2 FLCs have a computational overhead associated with the iterative type-reduction process which can reduce the FLC real-time performance, especially when operating on industrial embedded controllers which have limited computational and memory capabilities. In this paper, we introduce a real-time type-2 FLC that is suited for embedded controllers operating in marine/traction diesel engines. We have conducted numerous experiments where the embedded type-2 FLCs dealt with the uncertainties in real-time and displayed a robust control response that outperformed the PID and type-1 FLCs whilst using smaller rule bases
Reforming decentralized integrated health care systems: Theory and the case of the Norwegian reform

In this essay a conceptual and theoretical scheme for decentralized integrated health care systems of the northern European kind is developed. With small changes it is also applicable to other countries, e.g. Italy, Spain, and Portugal. Three ideas tie together the scheme: modified fiscal federalism, principalagent thinking and the analysis of discrete structural alternatives from new institutional economics. As a special case it encompasses the ideas of planned markets and public competition developed by von Otter and Saltman. The scheme can be used to analyse driving forces behind reforms and prediction of effects. To illustrate the thinking the recent Norwegian reform is put into context, not only geographically but also theoretically. The geographical context is that of Scandinavia and there is a summary of reforms in the Scandinavian countries over the past 20-30 years. The essay thus serves the double purpose of presenting and evaluating the Norwegian reform in a Scandinavian context and to take part in the neglected discipline of developing a theory of health care reform. The Norwegian January 2002 reform is described in some detail. It is a reversal of the Scandinavian model of decentralization and a move towards more centralism. The hospital system was transferred to the state that established five regions with independent (non-political) boards and each region has a number of daughters (hospitals) that have great autonomy with their own boards and are outside the legal restrictions of the public sector. Basically the idea is to mimic the corporate structure of large private companies. The reform is evaluated based on principal-agent thinking and the analysis of discrete structural alternatives. Overall there is no a priori reason to expect large improvements in efficiency – but on the other hand neither should one expect things to get worse. Many effects depend, however, crucially, on (a) the financing system that will be put in place late 2002 or early 2003, and (b) whether or not the political and management culture change as a result of the reform. In the concluding sections possible implications for Denmark and Sweden are discussed.
Student teachers' beliefs about mentoring and learning to teach during teaching practice.

BACKGROUND Various interpretations of mentor roles, by teacher educators and mentors, have been described in the literature on mentoring, while those of student teachers have received less attention. Therefore, this study focuses on student teachers' expectations of mentors and their own contributions to their learning process while they are supervised by a mentor. AIMS The main aims of this study were: (1) bridging the research on mentoring and the research on higher education students' learning conceptions by investigating student teachers' beliefs about mentoring and learning to teach, and (2) comparing these beliefs to mentors' ones and recent views on mentoring and learning in order to make suggestions for improving learning to teach. SAMPLE Thirty student teachers, graduates in various academic disciplines, participated. They were attending a one-year teacher education programme at Leiden University in the Netherlands. METHODS Structured interviews with the student teachers were audio-taped. Firstly, categories of mentor roles and learning activities were derived from the data. These were linked, secondly, by their focus of attention and, thirdly, empirically by a homogeneity analysis (HOMALS). RESULTS Six mentor roles, ten learning activities, and one regulation activity were combined in six foci: (1) affective aspects of learning to teach, (2) mentors' teaching styles, (3) assessment of student teachers' performance, (4) reflecting on students' lessons, (5) school context, and (6) self-regulation of learning. The HOMALS analysis yielded a process-product dimension. CONCLUSION In this study, the student teachers' beliefs about mentoring were similar to those of mentors. Furthermore, a third of the student teachers expected themselves as thinking critically about their lessons, but nobody expected their mentors to explicate their practical knowledge underlying their teaching. Therefore, the articulation of this knowledge is indicated as an additional mentor role and will be elaborated.
Post-Editing Error Correction Algorithm for Speech Recognition using Bing Spelling Suggestion

ASR short for Automatic Speech Recognition is the process of converting a spoken speech into text that can be manipulated by a computer. Although ASR has several applications, it is still erroneous and imprecise especially if used in a harsh surrounding wherein the input speech is of low quality. This paper proposes a post-editing ASR error correction method and algorithm based on Bing's online spelling suggestion. In this approach, the ASR recognized output text is spell-checked using Bing's spelling suggestion technology to detect and correct misrecognized words. More specifically, the proposed algorithm breaks down the ASR output text into several word-tokens that are submitted as search queries to Bing search engine. A returned spelling suggestion implies that a query is misspelled; and thus it is replaced by the suggested correction; otherwise, no correction is performed and the algorithm continues with the next token until all tokens get validated. Experiments carried out on various speeches in different languages indicated a successful decrease in the number of ASR errors and an improvement in the overall error correction rate. Future research can improve upon the proposed algorithm so much so that it can be parallelized to take advantage of multiprocessor computers.
Relevance of rater-ratee acquaintance in the validity and reliability of ratings.

Unacquainted Ss worked in three-man groups under relevant (mathematical tasks) and irrelevant (socializing) acquaintance conditions. The Ss rated one another on scales that defined several cognitive skills. They were also rated on these same scales by observers who were dependent on visual information, exclusively, and were unacquainted with the group members or the specific nature of the tasks being performed. As hypothesized, group members under the relevant acquaintance condition achieved consistently good validity for all three cognitive areas—with the best validity for ratings of math ability. Validity under the irrelevant acquaintance condition was nil on all scales. Observers, surprisingly, achieved significant validity (although at lower levels than participating group members) for ratings under the relevant acquaintance condition. Levels of inter- and intrarater reliability were not associated with levels of validity under the various rating conditions.
Progressively Diffused Networks for Semantic Image Segmentation

This paper introduces Progressively Diffused Networks (PDNs) for unifying multi-scale context modeling with deep feature learning, by taking semantic image segmentation as an exemplar application. Prior neural networks, such as ResNet, tend to enhance representational power by increasing the depth of architectures and driving the training objective across layers. However, we argue that spatial dependencies in different layers, which generally represent the rich contexts among data elements, are also critical to building deep and discriminative representations. To this end, our PDNs enables to progressively broadcast information over the learned feature maps by inserting a stack of information diffusion layers, each of which exploits multi-dimensional convolutional LSTMs (Long-Short-Term Memory Structures). In each LSTM unit, a special type of atrous filters are designed to capture the short range and long range dependencies from various neighbors to a certain site of the feature map and pass the accumulated information to the next layer. From the extensive experiments on semantic image segmentation benchmarks (e.g., ImageNet Parsing, PASCAL VOC2012 and PASCAL-Part), our framework demonstrates the effectiveness to substantially improve the performances over the popular existing neural network models, and achieves state-of-the-art on ImageNet Parsing for large scale semantic segmentation.
Small Volume Fat Transfer

background. The use of autologous fat has been advocated for tissue augmentation for over a century. However, this technique remains controversial and many investigators have made suggestions to increase its potential. objectives. To develop a less traumatic method to collect, purify, and reinject fat to obtain more dramatic augmentations for the cosmetic improvement of contours and tissue defects. methods. Fat was collected from the donor site following tu‐mescent infiltration of tissue. A “vented” syringe with an atrau‐tnatic Mercedes tip was used to collect the fat and, after washing with lactated Ringers or saline, the fat was transferred to small syringes for controlled injections. Small filaments of fat were placed in multi‐layers throughout the area of the defect or area of desired contour change. The unused fat was frozen for a second or third injection session. results. The fat transfer method yielded augmentations of 40%‐120% of injected volume in the 339 areas treated. After 45–60 days, the implant was stabilized and remained for the length of our study (up to 10 years). In several cases excessive fat had to be removed. Other than slight bruising, occasional divots at the donor site, and three cases of bacterial infection, the autologous tissue transfer was an uncomplicated event. conclusion. Fat grafting has proven to be a safe and effective procedure for correcting and enhancing tissue defects and contour deficiencies.
Cost effectiveness of thrombolytic therapy with tissue plasminogen activator as compared with streptokinase for acute myocardial infarction.

BACKGROUND Patients with acute myocardial infarction who were treated with accelerated tissue plasminogen activator (t-PA) (given over a period of 1 1/2 hours rather than the conventional 3 hours, and with two thirds of the dose given in the first 30 minutes) had a 30-day mortality that was 15 percent lower than that of patients treated with streptokinase in the Global Utilization of Streptokinase and Tissue Plasminogen Activator for Occluded Coronary Arteries (GUSTO) study. This was equivalent to an absolute decrease of 1 percent in 30-day mortality. We sought to assess whether the use of t-PA, as compared with streptokinase, is cost effective. METHODS Our primary, or base-case, analysis of cost effectiveness used data from the GUSTO study and life expectancy projected on the basis of the records of survivors of myocardial infarction in the Duke Cardiovascular Disease Database. In the primary analysis, we assumed that there were no additional treatment costs due to the use of t-PA after the first year and that the comparative survival benefit of t-PA was still evident one year after enrollment. RESULTS One year after enrollment, patients who received t-PA had both higher costs ($2,845) and a higher survival rate (an increase of 1.1 percent, or 11 per 1000 patients treated) than streptokinase-treated patients. On the basis of the projected life expectancy of each treatment group, the incremental cost-effectiveness ratio--with both future costs and benefits discounted at 5 percent per year--was $32,678 per year of life saved. The use of t-PA was least cost effective in younger patients and most cost effective in older patients. At all ages, the use of t-PA in patients with anterior infarctions yielded more favorable cost-effectiveness values. In our secondary analyses, the cost-effectiveness values were most sensitive to a lowering of the projected long-term survival benefits of t-PA and to moderate or greater increases in the projected medical costs for patients in the t-PA group after the first year. In contrast, our results were not sensitive to even very unfavorable assumptions about the additional costs associated with the higher rate of disabling stroke that was noted in patients treated with t-PA in the GUSTO study. CONCLUSIONS The cost effectiveness of treatment with accelerated t-PA rather than streptokinase compares favorably with that of other therapies whose added medical benefit for dollars spent is judged by society to be worthwhile.
A wireless healthcare monitoring platform

This paper discusses the design and implementation of a PDA-based health monitoring system. The system integrates various technologies to provide individuals with a portable, light weight monitoring unit that can assist patients in leading a healthy and independent life without risks or confinement to medical facilities. The results were encouraging and warrant further exploration of the proposed methodology.
Predictors of self forgiveness in older adults

The primary purpose of this study was to examine whether or not there is a predictive relationship between life satisfaction, positive affect, negative affect (these three variables widely accepted as determinants of subjective well-being), and acceptance of the past with self forgiveness in older adults. Participants were 101 adults over the age of 65. The sample was derived from members of a continuing education program for older adults in the northeastern United States and from independently living residents at a senior community. Participants completed the Heartland Forgiveness Scale: Forgiveness of Self Subscale (HFS: SF), the Positive and Negative Affect Schedule (PANAS), the Satisfaction with Life Scale (SWLS) the Accepting the Past Scale (ACPAST), and a Demographic Worksheet. Hierarchical regression analyses revealed significant relationships between life satisfaction, positive affect, negative affect, acceptance of the past, Caucasian ethnicity, Native American ethnicity, and the marital status of “divorced” with self forgiveness. Subsequent stepwise regression of life satisfaction, positive affect, negative affect, acceptance of the past, Caucasian ethnicity, Native American ethnicity, and “divorced” on self forgiveness revealed that only positive affect, accepting the past, and being divorced retained significance (p <. 05) as predictors of self forgiveness with accepting the past accounting for the most variance (R Change = .420). Implications of the results of this study are discussed as are interventions and suggestions for future research.