Miracle-dz/UniFAR-FTUs huggingface dataset:
On Conditionally Invariant Solutions of Magnetohydrodynamic Equations. Multiple Waves.

Abstract We present a version of the conditional symmetry method in order to obtain multiple wave solutions expressed in terms of Riemann invariants. We construct an abelian distribution of vector fields which are symmetries of the original system of PDEs subjected to certain first order differential constraints. The usefulness of our approach is demonstrated on simple and double wave solutions of MHD equations. The paper also contains a comparison of the conditional symmetry method with the generalized method of characteristics.
Attachment Styles and Factors affecting Career Choice of Occupational Therapy Students

Adult attachment theory, a theory of personality, has been connected to a range of factors that may contribute to one's professional choice, job satisfaction and performance. To date, the implications of this theory for the profession of occupational therapy have not been investigated. This study examined the adult attachment styles of 124 first and fourth year occupational therapy students at The University of Queensland in relation to factors affecting career choice and satisfaction with career choice. The results showed that the majority of the participants had a secure attachment style, were people orientated and were satisfied with their choice of career. In accordance with adult attachment theory, the participants with a secure attachment style rated people-orientated factors as important when choosing occupational therapy as a career and were more satisfied with their choice of career than the participants with an insecure attachment style. The study suggests that adult attachment style might warrant consideration in light of recruitment and retention.
Guiding Learners into Reengagement through the SCALE Environment: An Empirical Study

The paper presents the facilities offered by the open learner model maintained in the web-based, adaptive, activity-oriented learning environment SCALE (Supporting Collaboration and Adaptation in a Learning Environment), in order to guide online students who become disengaged and support their reengagement. The open learner model (OLM_SCALE) contains and represents information about students' performance level, the minimum, maximum, and average performance level calculated from all the students enrolled in the specific subject matter, and students' interactions with the system. The paper gives an outline of the SCALE environment and OLM_SCALE and presents an empirical study that was conducted. The results of the study revealed that: 1) students positively admitted the facilities of OLM_SCALE and 2) the exploitation of OLM_SCALE can effectively lead disengaged students to work in an engaged way.
A Low Carbohydrate–Protein Supplement Improves Endurance Performance in Female Athletes

McCleave, EL, Ferguson-Stegall, L, Ding, Z, Doerner, PG III, Wang, B, Kammer, LM, and Ivy, JL. A low carbohydrate-protein supplement improves endurance performance in female athletes. J Strength Cond Res 25(4): 879-888, 2011-The purpose of this study was to investigate if a low mixed carbohydrate (CHO) plus moderate protein (PRO) supplement, provided during endurance exercise, would improve time to exhaustion (TTE) in comparison to a traditional 6% CHO supplement. Fourteen (n = 14) trained female cyclists and triathletes cycled on 2 separate occasions for 3 hours at intensities varying between 45 and 70% &OV0312;O2max, followed by a ride to exhaustion at an intensity approximating the individual's ventilatory threshold average 75.06% &OV0312;O2max. Supplements (275 mL) were provided every 20 minutes during exercise and were composed of a CHO mixture (1% each of dextrose, fructose, and maltodextrin) + 1.2% PRO (CHO + PRO) or 6% dextrose only (CHO). The TTE was significantly greater with CHO + PRO in comparison to with CHO (49.94 ± 7.01 vs. 42.36 ± 6.21 minutes, respectively, p < 0.05). Blood glucose was significantly lower during the CHO + PRO trial (4.07 ± 0.12 mmol·L−1) compared to during the CHO trial (4.47 ± 0.12 mmol·L−1), with treatment × time interactions occurring from 118 minutes of exercise until exhaustion (p < 0.05). Results from the present study suggest that the addition of a moderate amount of PRO to a low mixed CHO supplement improves endurance performance in women above that of a traditional 6% CHO supplement. Improvement in performance occurred despite CHO + PRO containing a lower CHO and caloric content. It is likely that the greater performance seen with CHO + PRO was a result of the CHO-PRO combination and the use of a mixture of CHO sources.
Race, National Discourse, and Politics in Cuba: An Overview

"Please, do not speak about races," a reader of the Miami Herald who defined himself as a "Cuban mulatto" requested. "Comments like these do us a lot of harm . what you are doing is dividing us" (Suairez, 1994). His was but one of a number of letters commenting on the publication of several articles about race in Cuba, a topic numerous readers found especially dangerous at a time when Cuban-Americans had to stay as united as ever to confront the real enemy, Fidel Castro. Not surprisingly, those who had dared to address such a delicate issue were black authors (Gonzailez, 1994; Patterson, 1994). This tension between the open acknowledgment of Cuban racial diversity and the convenience of avoiding, ignoring, or silencing it is far from new in Cuban national discourse and imagery. Cubans have been trying to find unity and common ground for at least a century and have frequently perceived race as an obstacle to reaching this goal. In fact, the situation and the arguments re-created by these concerned Cuban-Americans are not terribly different from those that Cuban emigres were confronting 100 years ago. Then, as now, they were struggling to achieve unity against their common, real enemy (Spanish colonialism). Then, as now, race was or could be used as a divisive issue, one that should best be silenced. None other than Jose Marti (1992: 205-207), Cuba's greatest ideologue and the architect of the fusion of anticolonial forces under a common, pro-independence banner, wrote in New York in 1893,
Genetic and environmental influences on maternal and sibling interaction in middle childhood: a sibling adoption study

Genetic and environmental influences on maternal and sibling interactions were examined in 67 mother-child-child triads from nonadoptive families and 57 mother-child-child triads from adoptive families (in which both children were adopted and genetically unrelated). Triads were videotaped in 6 play settings in their homes. In addition, each sibling pair was observed in an unstructured setting in the home, and mothers completed an interview about the sibling relationship
QTL Mapping for Fusarium Ear Rot and Fumonisin Contamination Resistance in Two Maize Populations

Fusarium verticillioides (Sacc.) Nirenberg (synonym F. moniliforme Sheldon) (teleomorph: Gibberella moniliformis) and F. proliferatum (Matsushima) Nirenberg (teleomorph: G. intermedia) are fungal pathogens of maize (Zea mays L.) that cause ear rot and contaminate grain with fumonisins, mycotoxins that can harm animals and humans. The objective of this study was to identify quantitative trait loci (QTL) for resistance to Fusarium ear rot and fumonisin contaminationintwomaizepopulations,comprisedof213BC1F1:2familiesfrom the first backcross of GE440 to FR1064 (GEFR) and 143 recombinant inbred lines from the cross of NC300 to B104 (NCB). QTL mapping was used to study the genetic relationships between resistances to ear rot and fumonisin contamination and to investigate consistency of QTL acrosspopulations.IntheGEFRpopulation,sevenQTLexplained47% of the phenotypic variation for mean ear rot resistance and nine QTL with one epistatic interaction explained 67% of the variation for mean fumonisin concentration. In the NCB population, five QTL explained 31% of the phenotypic variation for mean ear rot resistance and six QTL and three epistatic interactions explained 81% of the phenotypic variation for mean fumonisin concentration. Eight QTL in the GEFR population and five QTL in the NCB population affected both disease traits. At least three ear rot and two fumonisin contamination resistance QTL mapped to similar positions in the two populations. Two QTL,localized tochromosomes fourand five, appearedtobe consistent for both traits across both populations.
The breadth of coarticulatory units in children and adults.

PURPOSE To assess, in children and adults, the breadth of coarticulatory movements associated with a single rounded vowel. METHOD Upper and lower lip movements were recorded from 8 young adults and 8 children (aged 4-5 years). A single rounded versus unrounded vowel was embedded in the medial position of pairs of 7-word/7-syllable sentences. RESULTS Both children and adults produced movement trajectories associated with lip rounding that were very broad temporally (i.e., movement duration lasting 45% to 56% of the sentence). Some effects appeared to extend across the entire utterance. There were no differences between children and adults in the extent of the coarticulatory effect. However, children produced relatively variable movements associated with lip rounding. CONCLUSIONS These data support the hypothesis that, for young children and adults, broad chunks of output have been planned by the onset of implementation of a sentence. This implies that, based on a change in a single phoneme, the motor commands to the muscles are altered for the production of the entire sentence.
Debating the Debate

Rather than studying the effects of a programmed debate per se, this article examines the “total information environment” that surrounds the debate. A model explaining how people make judgments about the “winner” of a debate is suggested and tested on survey data (N = 748) collected in the days following the second 1996 presidential debate. Results demonstrate that consumption of debate-related news coverage, interpersonal discussion about the debate, and prior candidate attitudes are associated with perceptions of the winner of the debate. In addition, exposure to news coverage of the debate significantly interacted with exposure to the actual debate, so that the impact of news coverage was stronger for those watching little of the actual debate.
A Preliminary Detection of Arcminute-Scale Cosmic Microwave Background Anisotropy with the BIMA Array

We have used the Berkeley-Illinois-Maryland Association (BIMA) array outfitted with low-noise millimeter-wave receivers to expand our search for arcminute-scale anisotropy of the cosmic microwave background (CMB). The interferometer was placed in a compact configuration for sensitivity on arcminute scales over its 6. ′6 FWHM field of view. This experiment is most sensitive to flat band power described by an average multipole of l = 5530, corresponding to an angular scale of ~2'. We present the analysis of 11 independent fields that were selected based on their low contrast in infrared dust emission and lack of bright radio sources. Applying a Bayesian analysis to the visibility data, we find CMB anisotropy flat band power Qflat = 6.1 μK at 68% confidence. The measured signal exceeds that expected from instrument noise with 76% confidence, and we find an upper limit of Qflat < 12.4 μK at 95% confidence. We have supplemented our BIMA observations with concurrent observations at 4.8 GHz with the Very Large Array to search for and remove point sources. We find that point sources make an insignificant contribution to the observed anisotropy.
EEG-based brain controlled prosthetic arm

Lately myoelectric prosthetics are in use. But it has certain disadvantages like it relies on the nerves to be undamaged and it's very expensive, which can be overcome by EEG-based brain controlled prosthetic arm. EEG-based brain controlled prosthetic arm is a non-invasive technique that can serve as a powerful aid for severely disabled people in their daily life, especially to help them move their arm voluntarily. In this paper, EEG-based brain controlled prosthetic arm has been developed using BCI with the help of Neurosky Mindwave headset to yield the two main movements of fingers in the arm: Flexion and Extension. BCI system consists of an EEG sensor to capture the brain signal, which will be processed using ThinkGear module in MATLAB. The extracted brain signals act as command signals that are transmitted to the Microcontroller via RF medium. The prosthetic arm module designed consists of Arduino coupled with servo motors to perform the command. The flexion and extension of finger can be successfully controlled with an accuracy of 80 per cent. The low cost wireless BCI system could allow the disabled people to control their prosthetic arm to lead a self-reliant life with the help of their brain signals.
Discrete-Time Model for PWM Converters in Discontinuous Conduction Mode

A new discrete-time model for pulse-width modulated (PWM) converters operating in the discontinuous conduction mode (DCM) which leads to the exact discrete-time mathematical representation of the averaged values of the output signal is proposed. This model can also provide the averaged values of other internal signals with little increase in simulation time. The use of piecewise linear (PL) iteration method dramatically reduces the simulation time, while introducing a little simulation approximation. It is compared to other existing models with respect to accuracy and simulation speed through a numerical example of boost converter. This method gives the exact one-cycle-average (OCA) values of signals at switching instants if PL iteration is not used and, by far, more accurate than other methods if PL iteration is not used. Numerical simulations demonstrate the superiority of the proposed method in terms of accuracy and speed.
Determinants, Process, and Consequences of Personal Goals and Performance

A significant two-way interaction between self-set goal level instructions (an instruction given to subjects to set hard, easy, or any goals) and methods of payment (straight piece-rate, differential piece-rate with goal attainment step bonus, and hourly flat rate) in influencing personal goals, subsequent personal goals, and goal valences was found. The highest level of personal goals was set under straight piece-rate (pay for performance) in which self-set hard goal instructions were given. In addition, goal valences were found to partially mediate the interactive effects of methods of payment and self-set goal level instructions on personal goals. Furthermore, personal goals were found to: (1) completely mediate the effects of goal valences on performance; and (2) completely mediate the main effects of self-set goal level instructions—as well as the interactive effects of both self-set goal level instructions and methods of payment—on subsequent personal goals. This research sheds light on the determinants, process, and consequences of personal goals and performance and shows that organizational contextual variables such as the reward systems and instructions to choose goals of a certain level significantly interact to influence personal goals, subsequent personal goals, and goal valences.
Flow and Occupation: A Review of the Literature

Flow is a subjective psychological state which occurs when one is totally involved in an activity. Elements of the flow experience include the focusing of attention on a clear goal, a loss of self-consciousness, an altered sense of time, and a sense that the activity in itself is rewarding. Through a review of the literature, the author presents conditions linked to the experience of flow that pertain to traits of the person, properties of the activity, and the interaction between the two. The relevance of flow theory to occupational therapy and occupational science is discussed. Considerations for research on flow and occupation are outlined.
Face processing in autistics: Evidence for a generalised deficit?

Abstract Several studies have recently highlighted specific impairments in face processing in autistic subjects (memory for faces, recognition of emotional expressions, identity recognition of familiar faces). The goal of the present study was to explore whether there was a generalised face processing deficit in this population. A variety of tasks examining different, and possibly dissociative, aspects of face processing was investigated. The results of autistic subjects were compared with data from (a) a group of children with Down syndrome and (b) two individually matched control groups. The study suggests that autistic subjects are impaired in the various face processing tasks, but not always to the same extent.
Phonological awareness: an investigation into the developmental role of vocabulary and short-term memory

This paper presents some evidence of how scores in measures of vocabulary, short-term memory and phonological awareness obtained from young children (aged five, six and seven years) were related. Further data from a small-scale longitudinal study are also presented. The results are consistent with previous suggestions that with regard to working memory, “less is more” in that a relatively small memory span and age-appropriate vocabulary appeared advantageous to the acquisition of phonological awareness.
The Influence of Ethnic Match on Latino School-Based Family Engagement

Research has shown that the school-based engagement of Latino families is lower compared with other racial and ethnic groups. One possible barrier to school-based engagement of this heterogeneous group of families might be the lack of cultural match between families and schools. Addressing this under-researched area, the current study examined ethnic match between Latino caregivers and teachers at seven Head Start centers in a large urban area in the Northeast. Participants were 294 Latino caregivers with children enrolled in Head Start programs and 37 Head Start teachers. Using hierarchical linear modeling (HLM), findings indicated that ethnic match (defined by whether a caregiver and the Head Start teacher both identified as Latino) was significantly associated with teacher-rated family engagement. Having a Latino teacher explained a significant amount of the variance in school-based family engagement, beyond that accounted for by caregiver and teacher education. Implications for Head Start’s recruitment and training of teachers are discussed.
Inverted indexes for phrases and strings

Inverted indexes are the most fundamental and widely used data structures in information retrieval. For each unique word occurring in a document collection, the inverted index stores a list of the documents in which this word occurs. Compression techniques are often applied to further reduce the space requirement of these lists. However, the index has a shortcoming, in that only predefined pattern queries can be supported efficiently. In terms of string documents where word boundaries are undefined, if we have to index all the substrings of a given document, then the storage quickly becomes quadratic in the data size. Also, if we want to apply the same type of indexes for querying phrases or sequence of words, then the inverted index will end up storing redundant information. In this paper, we show the first set of inverted indexes which work naturally for strings as well as phrase searching. The central idea is to exclude document d in the inverted list of a string P if every occurrence of P in d is subsumed by another string of which P is a prefix. With this we show that our space utilization is close to the optimal. Techniques from succinct data structures are deployed to achieve compression while allowing fast access in terms of frequency and document id based retrieval. Compression and speed trade-offs are evaluated for different variants of the proposed index. For phrase searching, we show that our indexes compare favorably against a typical inverted index deploying position-wise intersections. We also show efficient top-k based retrieval under relevance metrics like frequency and tf-idf.
Attachment relationships of adolescents who spent their infancy in residential group care: The Greek Metera study

A prospective longitudinal study beginning whilst the infants were living in the Metera Babies Centre showed that the great majority showed a disorganized attachment during the period of residential care, even though neither abuse/neglect nor subnutrition were involved. There was an initial follow-up post-adoption age at four years. This paper concerns a further follow-up of the 52 adopted adolescents aged 13 years who had spent their first two years of life in Metera Babies Centre. They were compared to 36 adolescents reared in their biological families who, during their infancy, attended full-time public day care. The key aim was to examine continuities and discontinuities between early and contemporary relationships. The Child Attachment Interview was employed in adolescence. The main findings were a significant decrease in the rate of disorganization and a lack of a significant difference between the previously institutionalized group and the family care comparison group on attachment qualities in adolescence. There was not sufficient statistical power, however, to detect a small difference.
A New Design of In-Memory File System Based on File Virtual Address Framework

The emerging technologies of persistent memory, such as PCM, MRAM, provide opportunities for preserving files in memory. Traditional file system structures may need to be re-studied. Even though there are several file systems proposed for memory, most of them have limited performance without fully utilizing the hardware at the processor side. This paper presents a framework based on a new concept, “File Virtual Address Space”. A file system, Sustainable In-Memory File System (SIMFS), is designed and implemented, which fully utilizes the memory mapping hardware at the file access path. First, SIMFS embeds the address space of an open file into the process' address space. Then, file accesses are handled by the memory mapping hardware. Several optimization approaches are also presented for the proposed SIMFS. Extensive experiments are conducted. The experimental results show that the throughput of SIMFS achieves significant performance improvement over the state-of-the-art in-memory file systems.
The Jet Propulsion Laboratory Autonomous Helicopter Testbed: A platform for planetary exploration technology research and development

The Jet Propulsion Laboratory Autonomous Helicopter Testbed (AHT), an aerial robot based upon a radio‐controlled model helicopter, provides a small low‐cost platform for developing and field testing new technologies needed for future space missions. The AHT helps cover the test space in a complementary fashion to other methods, such as rocket sleds or parachute drops. The AHT design and implementation is presented as well as experimental results and milestones achieved since its creation in 2001. In addition, technologies we are developing and testing are described. These include image‐based hazard detection and avoidance algorithms for safe landing in dangerous terrain and an extended Kalman filter that augments inertial navigation with image‐based motion estimates to enable pin‐point landing. © 2006 Wiley Periodicals, Inc.
A more accurate calculation of magnetic losses in the induction motor

U radu je nacinjena usporedba rezultata izracuna gubitaka vrtložnih struja u zubima asinkronog motora analitickom metodom i metodom konacnih elemenata. Uz pretpostavke da su permeabilnost i vodljivost lima konstantni, mogu se ukupni gubici vrtložnih struja racunati kao zbroj pulzacijskih i povrsinskih gubitaka. Dane su upute kako se mogu racunati ukupni gubici u zubima za sve oblike zuba uzimajuci u obzir potiskivanje toka u limovima, prigusenje toka u zubima, te faktore obrade lima i paketa limova. Vrednovanje analitickog modela izracuna gubitaka nacinjeno je i usporedbom s mjerenjima.