Miracle-dz/UniFAR-FTUs huggingface dataset:
Thermodynamic Analysis of the V-Shaped Area of High Pressure and High Temperature in Cubic Boron Nitride Synthesis with Li3N as a Catalyst

The possibilities of different phase transitions to cBN with Li3N as catalyst at high temperature and high pressure (1600–2200 K, 4.8–6.0 GPa) are analyzed, in the framework of the second law of thermodynamics. The Gibbs free energy (∆G) of three reactions which may happen in the Li3N-BN system: hBN + Li3N→Li3BN2, hBN→cBN, and Li3BN2→cBN + Li3N, is calculated, with the influence of high temperature and high pressure on volume included. We show that ∆G of hBN + Li3N→Li3BN2 and hBN→cBN are between −35~−10 KJ·mol−1 and −25~−19 KJ·mol−1, respectively. However, ∆G of Li3BN2→cBN + Li3N can be positive or negative. The area formed by the positive data is a V-shaped area, which covers the most part of the cBN growing V-shaped area. It confirms that Li3BN2 is stable in the P-T area of cBN synthesis, and cBN is probably transformed directly from hBN. Analysis suggests that Li3BN2 promotes the transition from hBN to cBN.
The Effects of Computer-Assisted Instruction on the Mathematical Problem Solving of Students With Learning Disabilities

This study was intended to determine (a) whether students with learning disabilities (LD) can benefit from a computer-assisted instructional tutorial program to learn math word problem solving on immediate and delayed online computer and paper- and-pencil tests, and (b) whether one of three variations of computer-assisted in- structional programs will produce superior learning. Two of the computer-assisted instructional programs included a seven-step cognitive strategy for solving word problems. Both programs employed identical teaching procedures except that ani- mated pictures were used in one condition and static pictures were used in the other condition. The third condition served as a comparison group that employed similar instruction with static pictures but without the explicit seven-step cognitive strategy. Thirty elementary students with LD were randomly assigned to one of the three conditions. Results indicated that students in all conditions improved significantly on math word problem solving f.
The Learning of Natural Configural Strategies

The learning of natural configural strategies, strategies that match people intuitive theories about configural relationship between variables, is studied in a two-cue probability learning paradigm. The main focus is the learning of disjunctive strategy, a strategy in which response depends primarily on the high cue, and conjunctive strategy, a strategy in which response depends primarily on the low cue. We find that people learn disjunctive strategy better when the target of the prediction is human than when it is non-human, and that they learn conjunctive strategy better when the target is non-human. In addition, in a meaningful context, conjunctive strategy is learned better in the short run, but after a prolonged feedback, disjunctive strategy is learned better. In an abstract context, disjunctive strategy is learned better both in the short run and in the long run. The processes that lead to these differences in the learning of conjunctive and disjunctive strategies are discussed.
Hole Mobility Enhancement in Compressively Strained  ${\rm Ge}_{0.93}{\rm Sn}_{0.07}$ pMOSFETs

Germanium tin (GeSn) pMOSFETs with channel Sn composition of 7% are fabricated using a low thermal budget process. GeSn pMOSFETs show enhancement in hole mobility over control Ge devices by 85% in high inversion charge density regime. Hole mobility improvement observed in GeSn channel pMOSFETs compared with Ge control is due to the biaxial compressive strain in GeSn resulting from epitaxial growth of GeSn thin films on relaxed Ge buffer layers.
Language Learning Strategy Use of Bilingual Foreign Language Learners in Singapore

This study, using Oxford's 80-item Strategy Inventory for Language Learning (SILL), examines the self-reported language learning strategy use of 678 university students learning Japanese and French as foreign languages in Singapore. The study differs from previous SILL studies in that the participants were bilingual from a multicultural setting, and the use of all 80 strategies was examined. Relationships between background variables and overall strategyuse were investigated using ANOVA. Results were significant for motivation, self-rated proficiency, and language studied, with motivation significantly interacting with language studied. The use of each strategy by proficiency and also by gender was investigated using chi-square. Results showed more learning strategy use among learners with higher proficiency and, unexpectedly, more strategies used significantly more often by men.
Characteristics of the Cognitive Development of Profoundly Retarded Children.

ROGERS, SALLY J. Characteristics of the Cognitive Development of Profoundly Retarded Children. CmLD DEVELOPMENT, 1977, 48, 837-843. The sensorimotor skills of 40 profoundly retarded institutionalized children, ages 8-14, were examined on a set of Piagetian tasks to determine (a) whether their performance would replicate the invariant sequential pattern found in normal infants, (b) the parallelism of stage attainments in the various domains of sensorimotor functioning, and (c) the role of mental and chronological age variables in sensorimotor performances. Stage attainments followed Piaget's hypothesized invariant sequences and generally replicated findings made with normal infants but lacked the parallel stage performance across various domains as theorized by Piaget. In addition, mental age was significantly correlated with sensorimotor skills.
Cytochrome c induces caspase-dependent apoptosis in intact hematopoietic cells and overrides apoptosis suppression mediated by bcl-2, growth factor signaling, MAP-kinase-kinase, and malignant change.

It has been shown that cytochrome c is released from mitochondria during apoptosis, activates pro-caspase CPP32 (caspase III), and induces DNA fragmentation in mixtures of cytosolic extracts and isolated nuclei. To establish whether cytochrome c can primarily induce apoptosis in intact cells, we used direct electroporation of cytochrome c into murine interleukin-3 (IL-3)-dependent cells. Electroporation of micromolar external concentrations of cytochrome c rapidly induced apoptosis (2 to 4 hours) that was concentration-dependent, did not affect mitochondrial transmembrane potential, and was independent of cell growth. Only certain isoforms of cytochrome c were apoptogenic; yeast cytochrome c and other redox proteins were inactive. Cytochrome c-induced apoptosis was dependent on heme attachment to the apo-enzyme and was completely abolished by caspase inhibitors. Nonapoptogenic isoforms of cytochrome c did not compete for apoptogenic cytochrome c. Although apoptosis induced by IL-3 withdrawal was inhibited by bcl-2 overexpression and expression of an activated MAP-kinase-kinase (MAP-KK), cytochrome c induced apoptosis in the presence of IL-3 signaling, bcl-2 over-expression, expression of activated MAP-KK, and the combined antiapoptotic action of all three. Cytochrome c also induced apoptosis in the leukemic cell line WEHI 3b. However, human HL60 and CEM cells were resistant to cytochrome c-induced apoptosis. HL60 cells did not electroporate, but CEM cells were efficiently electroporated. Our studies with IL-3-dependent cells confirm that the apoptogenic attributes of cytochrome c are identical in intact cells to those in cell extracts. We conclude that cytochrome c can be a prime initiator of apoptosis in intact growing cells and acts downstream of bcl-2 and mitochondria, but that other cells are resistant to its apoptogenic activity. The system described offers a novel, simple approach for investigating regulation of apoptosis by cytochrome c and provides a model linking growth factor signaling to metabolism, survival, and apoptosis control.
Family support, social capital, resilience and adolescent coping

All too often young people are excluded in practice from the general policy and professional consensus that partnership and participation should underpin work with children, young people and their families. If working with troubled and troublesome young people is to be based on family support, it will require not only the clear statement of that policy but also demonstration that it can be applied in practice. Achieving that involves setting out a plausible theory of change that can be rigorously evaluated. This paper suggests a conceptual model that draws on social support theory to harness the ideas of social capital and resilience in a way that can link formal family support interventions to adolescent coping. Research with young people attending three community-based projects for marginalized youth is used to illustrate how validated tools can be used to measure and document the detail of support, resilience, social capital and coping in young people's lives. It is also suggested that there is sufficient fit between the findings emerging from the study and the model to justify the model being more rigorously tested.
Separation of slip- and high-frequency electromagnetic quantity and its application in rotor loss fine analysis of induction motor

Due to coupled slip- and high-frequency electromagnetic quantity with load conditions, it is difficult to separate the additional iron and copper losses caused by the harmonic field accurately at rotor side of induction motor within a power cycle. To solve this problem, this paper proposes a separation method of rotor electromagnetic quantity with the slip frequency. In this method, the amplitude of flux density or current density with slip-frequency can be solved by Discrete Fourier Transform (DFT) on a spatial field distribution at a random moment, and the polynomial combined high-frequency sine functions are adopted to fit the curves in a power cycle by Least Square Method (LSM); finally, the loss caused by different harmonic fields can be calculated separately and accurately. The correctness of the proposed method is verified by comparing with the computed flux density with a slip cycle, and its application on rotor losses fine analysis is also presented.
Isolation and characterization of Chinese hamster ovary cell variants deficient in the expression of fibronectin receptor

Chinese hamster ovary cell populations were enriched for cells displaying low surface expression of the 140-kD integrin fibronectin receptor (FnR) by means of fluorescence-activated cell sorting using monoclonal anti-FnR antibodies. Selected cells were cloned by limiting dilution, and the resulting clones were screened for low cell surface FnR expression by ELISA. Two multiply sorted populations gave rise to variant clones possessing approximately 20 or 2% FnR expression, respectively, compared with wild-type cells. Growth rates of the "20%" and "2%" clones on serum-coated plastic dishes were similar to that of wild-type cells. Variant cells expressing 20% FnR could attach and spread on substrata coated with purified fibronectin, although somewhat more slowly than wild-type cells, while cells expressing 2% FnR could not attach or spread. Cells from all variant clones attached normally to vitronectin substrata, but some of the 2% clones displayed altered morphology on this type of substratum. Motility assays in blind well chambers showed a correlation of movement with level of expression of FnR. The number of cells migrating in response to fibronectin was greatly reduced compared with wild-type cells for the 20% FnR variant clones, while variant clones with 2% FnR showed virtually no migratory activity. Surface labeling with 125I and immunoaffinity purification of FnR showed reduced levels of intact FnR on the plasma membranes of variants with 20% FnR, while none was detected in variants expressing 2% FnR. Nevertheless, beta subunits were detected on the surfaces of all variant clones. Immunoblots of cell lysates from wild-type cells and from both types of variant clones showed substantial amounts of FnR beta chain as well as enhanced amounts of a pre-beta moiety in the variants. alpha chain was markedly reduced in the 20% variants and essentially absent in the 2% variants, indicating that failure to assemble intact FnR in these variants was due to deficiencies of alpha chain production. Dot blots of total mRNA from a representative clone expressing 20% FnR showed reduced levels of material hybridizing to an 0.97-kb hamster FnR alpha chain cDNA probe as compared with wild type, while mRNA from a representative clone expressing 2% FnR had no detectable hybridizable RNA; this seems to agree well with the results obtained by immunoblotting. Thus, the defect in the variant clones seems to be due to reduced levels of alpha chain mRNA leading to a deficit of mature FnR and consequent alterations in cell adhesion and motility on fibronectin substrata.
The differential effects of school tracking on psychometric intelligence : Do academic-track schools make students smarter?

Prior research has shown that quantity of schooling affects the development of intelligence in childhood and adolescence. However, it is still debated whether other aspects of schooling--such as ability tracking or, more generally, school quality--can also influence intelligence. In this study, the authors analyzed intelligence gains in academic- and vocational-track schools in Germany, testing for differential effects of school quality (academic vs. vocational track) on psychometric intelligence. Longitudinal data were obtained from a sample of N = 1,038 Grade 7 and 10 students in 49 schools. A nonverbal reasoning test was used as an indicator of general psychometric intelligence, and relevant psychological and social background variables were included in the analyses. Propensity score matching was used to control for selection bias. Results showed a positive effect of attending the academic track.
Histone acetylation increases chromatin accessibility

In eukaryotes, the interaction of DNA with proteins and supramolecular complexes involved in gene expression is controlled by the dynamic organization of chromatin inasmuch as it defines the DNA accessibility. Here, the nuclear distribution of microinjected fluorescein-labeled dextrans of 42 kDa to 2.5 MDa molecular mass was used to characterize the chromatin accessibility in dependence on histone acetylation. Measurements of the fluorescein-dextran sizes were combined with an image correlation spectroscopy analysis, and three different interphase chromatin condensation states with apparent pore sizes of 16-20 nm, 36-56 nm and 60-100 nm were identified. A reversible change of the chromatin conformation to a uniform 60-100 nm pore size distribution was observed upon increased histone acetylation. This result identifies histone acetylation as a central factor in the dynamic regulation of chromatin accessibility during interphase. In mitotic chromosomes, the chromatin exclusion limit was 10-20 nm and independent of the histone acetylation state.
Conservation of Human Microsatellites across 450 Million Years of Evolution

The sequencing and comparison of vertebrate genomes have enabled the identification of widely conserved genomic elements. Chief among these are genes and cis-regulatory regions, which are often under selective constraints that promote their retention in related organisms. The conservation of elements that either lack function or whose functions are yet to be ascribed has been relatively little investigated. In particular, microsatellites, a class of highly polymorphic repetitive sequences considered by most to be neutrally evolving junk DNA that is too labile to be maintained in distant species, have not been comprehensively studied in a comparative genomic framework. Here, we used the UCSC alignment of the human genome against those of 11 mammalian and five nonmammalian vertebrates to identify and examine the extent of conservation of human microsatellites in vertebrate genomes. Out of 696,016 microsatellites found in human sequences, 85.39% were conserved in at least one other species, whereas 28.65% and 5.98% were found in at least one and three nonprimate species, respectively. An exponential decline of microsatellite conservation with increasing evolutionary time, a comparable distribution of conserved versus nonconserved microsatellites in the human genome, and a positive correlation between microsatellite conservation and overall sequence conservation, all suggest that most microsatellites are only maintained in genomes by chance, although exceptionally conserved human microsatellites were also found in distant mammals and other vertebrates. Our findings provide the first comprehensive survey of microsatellite conservation across deep evolutionary timescales, in this case 450 Myr of vertebrate evolution, and provide new tools for the identification of functional conserved microsatellites, the development of cross-species microsatellite markers and the study of microsatellite evolution above the species level.
Cerebral Neovascularization and Remodeling Patterns in Two Different Models of Type 2 Diabetes

We previously reported intense pial cerebral collateralization and arteriogenesis in a mild and lean model of type 2 diabetes (T2D), Goto-Kakizaki (GK) rats. Increased cerebral neovascularization differed regionally and was associated with poor vessel wall maturity. Building upon these findings, the goals of this study were to determine whether a) glycemic control prevents this erratic cerebral neovascularization in the GK model, and b) this pathological neovascularization pattern occurs in Leprdb/db model, which is the most commonly used model of T2D for studies involving cerebral complications of diabetes. Vascular volume, surface area and structural parameters including microvessel/macrovessel ratio, non-FITC (fluorescein) perfusing vessel abundance, vessel tortuosity, and branch density were measured by 3D reconstruction of FITC stained vasculature in GK rats or Leprdb/db mice. GK rats exhibited an increase in all of these parameters, which were prevented by glycemic control with metformin. In Leprdb/db mice, microvascular density was increased but there was no change in nonFITC-perfusing vessels. Increased PA branch density was associated with reduced branch diameter. These results suggest that T2D leads to cerebral neovascularization and remodeling but some structural characteristics of newly formed vessels differ between these models of T2D. The prevention of dysfunctional cerebral neovascularization by early glucose control suggests that hyperglycemia is a mediator of this response.
“That mea::n dog”: Linguistic mischief and verbal play as a communicative resource in aphasia

Background: Linguists, sociolinguists, and anthropologists point to verbal play (e.g., rhyming, punning, teasing) as a pervasive communicative practice that crosses contexts, serves developmental and interpersonal functions, and foregrounds participants' metacommunicative awareness, as utterances must be framed as playful. Researchers investigating the communicative practices of persons with aphasia have yet to explore the presence and functions of verbal play. Data collection for this research was funded in part by a Mary Jane Neer Research Grant of the College of Applied Life Studies at the University of Illinois at Urbana‐Champaign. I would also like to gratefully acknowledge the following student research assistants who assisted in data coding: Megan Phalen, Julie Schwenn, Vija Sidrys, Rita Szafranski, and Michelle Nolan. Aims: This study (1) presents a system for descriptively coding interactional forms, resources, and functions of verbal play; (2) documents verbal play in interactions of individuals with aphasia and partners; and (3) offers a close discourse analysis of a series of playful episodes. Methods and Procedures: Derived from a broader ethnographic study of individuals with aphasia and their routine partners, this exploratory study analysed 13 hours of videotape data obtained in four sessions with each of four pairs (an individual with aphasia and a partner) playing a game‐like barrier task. A grounded theory approach was used to develop descriptive codes, and those codes were used to support situated discourse analysis of playful episodes. Outcomes and Results: With 1005 playful episodes identified, verbal play was a pervasive practice for these pairs. Playful episodes were diverse in form and function, and their production was dynamic as participants drew on the evolving interactions, recycled playful themes, shifted in and out of playful frames, and managed multiple functions simultaneously. Conclusions: This analysis of the pervasive character of verbal play and the ongoing management of multiple frames highlights the complexity, heterogeneity, and distributed nature of situated communication. From a sociogenetic perspective, such rich, complex interactions could be a key ground for reorganisation of communicative practices and resources after aphasia, a theoretical and practical possibility of great interest to clinicians and researchers alike.
Design and Management of Complex Technical Processes and Systems by means of Computational Intelligence Methods Additive Approximations of Pareto-Optimal Sets by Evolutionary Multi-Objective Algorithms

Often the Pareto front of a multi-objective optimization problem grows exponentially with the problem size. In this case, it is not possible to compute the whole Pareto front efficiently and one is interested in good approximations. We consider how evolutionary algorithms can achieve such approximations by using different diversity mechanisms. We discuss some well-known approaches such as the density estimator and the ε-dominance approach and point out how and when such mechanisms provably help to obtain good additive approximations of the Pareto-optimal set.
The Home Play of Toddlers with Disabilities: Contexts and maternal perspectives

A multiple case‐study design was used to explore the spontaneous play of three toddlers with disabilities as it emerged in the course of everyday activity in the home. Children were observed at home playing independently and with their mothers. Data consist of videotaped naturalistic observations in the children’s homes and mothers’ perspectives of their child’s play obtained in semi‐structured interviews. There was a great deal of similarity in the playful behaviour of toddlers and their mothers. Toddlers were active players throughout all daily routines and their play reflected their developmental level. Mothers actively supported their children’s initiative and engagement in play and they spoke of play as a highly valued behaviour. Some qualitative differences were noted in child and mother–child play, which seemed to relate to the nature of the child’s disability and developmental level. Further study of the play of young children with disabilities in naturalistic settings and ways that mothers and other caregivers value and support child play is recommended.
Deposit Flight , Precautionary Consumption , and Capital Controls : A Tale from Greece ∗

This paper presents an analytical narrative of the later stages of the Greek crisis, focusing on two key events that unfolded during 2014-2016 and set Greece apart from other episodes of sovereign debt crises: the risk of Grexit and the imposition of capital controls on the banking sector. To account for them both, we extend the standard small open economy environment along three dimensions. First, we allow for an informal sector. Second, we allow for a richer menu of assets that include cash, which is needed for informal consumption and is costly to hold. Third, we introduce a banking sector that turns households’ deposits into capital. We show that, as evidenced by the data, a risk of Grexit leads households to run down their deposits to the detriment of bank balance sheets, increase their demand for cash, and increase their consumption—we call this behavior ”precautionary consumption”. We further show that capital controls mitigate the deposit flight and induce the reallocation of consumption towards formal goods.