Miracle-dz/UniFAR-FTUs huggingface dataset:
The Convergence between Two Theories of College Persistence

Although several theories have been advanced to explain the college persistence process [6, 39, 44, 46], the two theories that provide a more comprehensive theoretical framework on college departure decisions are Tinto's [44, 46] Student Integration Model and Bean's [5] Model of Student Departure [18]. These two theories have received considerable attention in the literature [see, for example, 13, 21, 22, 24, 26]. However, no research exists on the extent to which these two theories converge and diverge in explaining decisions to leave college. The purpose of this article was to examine, empirically, the convergent and discriminant validity between these two theories and document the extent to which the two theories could be merged to illuminate better our understanding of the college persistence process.
Do Smiles Elicit More Inferences than Do Frowns? The Effect of Emotional Valence on the Production of Spontaneous Inferences

Previous work by Liu, Karasawa, and Weiner suggests that perceivers may draw more causal attributions for positive emotions than for negative emotions. If so, then perceivers may draw more inferences spontaneously for positive emotions than for negative emotions. Participants observed a short video of a target who displayed either happiness or sadness. In the first experiment, half of the participants who viewed each of these behaviors were instructed to diagnose the target's disposition and half were instructed to diagnose the target's situation. Results revealed that although participants who viewed sadness drew only the inference consistent with their instructions, participants who viewed happiness drew both dispositional and situational inferences regardless of their instructions. In a second experiment, participants were instructed to diagnose the behavior of a target who displayed either happiness or sadness. Results revealed that perceivers of happy behavior drew inferences spontaneously. Implications are discussed.
Exploring Verbal, Visual and Schematic Learners' Static and Dynamic Mental Images of Scientific Species and Processes in Relation to Their Spatial Ability

The current study compared different learners’ static and dynamic mental images of unseen scientific species and processes in relation to their spatial ability. Learners were classified into verbal, visual and schematic. Dynamic images were classified into: appearing/disappearing, linear-movement, and rotation. Two types of scientific entities and their related processes were investigated: astronomical and microscopic. The sample included 79 female students from Grades 9 and 10. For the purpose of the study, three instruments were used. The Mental Images by Guided Imagery instrument was designed to investigate participants' visualization of static and dynamic mental images. The Water-Level Task was adopted to estimate participants' spatial ability. The Learning Styles Inventory was used to classify participants into verbal, visual and schematic learners. The research findings suggest that schematic learners outperformed verbal and visual learners in their spatial ability. They also outperformed them in their vividness of microscopic images; both micro-static and micro-dynamic images; especially in the case of appearing/disappearing images. The differences were not significant in the case of astronomical images. The results also indicate that appearing/disappearing images received the least vividness scores for all three types of learners.
Cognitive, affective and behaviors’ attitudes towards learning Arabic as a Second Language: a case study at SMKA Maahad Hamidiah Kajang, Selangor, Malaysia

The purpose of this study was to investigate the relationship between the attitude of students studying Arabic language as a second language and their achievement in the Lower Secondary Examination (PMR). The research also investigated which component of attitude; cognitive, affective and behaviour, gives most impact on achievement in PMR examination. The study was conducted in SMKA Maahad Hamidiah Kajang, Selangor, Malaysia. The instrument used was a questionnaire with 34 items. It was distributed to 132 Form Four students.The study employed descriptive and inferential statistics in the data analysis. The study revealed that the cognitive and affective components of attitude were found to be significantly correlated with achievement. However, the result also showed that there was no relation between the behaviour component and achievement. In addition, the cognitive component of attitude was found to contribute significantly to achievement in Arabic. Thus, the finding of this study suggests that attitude is crucial in determining achievement in Arabic language. Therefore, teachers should encourage positive attitude towards learning Arabic among students in order to improve their achievement in the subject.
Fire Severity, Water Repellency Characteristics and Hydrogeomorphological Changes Following the Christmas 2001 Sydney Forest Fires

Soil water repellency can enhance overland flow and erosion and may be altered by fire. The Christmas 2001 bushfires near Sydney allowed investigation of the relationship between fire severity, water repellency and hydrogeomorphological changes. For two sub-catchments with differences in fire severities in Nattai National Park, south-west of Sydney, this paper considers: (1) the links between fire severity based on SPOT image analysis and ground observation of fire severity and repellency; (2) the textural and organic/minerogenic characteristics of eroded sediment; and (3) erodibility, erosion and deposition of soils in both catchments. Ground surveys show that image analysis reflects well the degree of vegetation consumption by fire, but cannot adequately predict the degree of ground litter consumption, associated soil heating and repellency effects. Fire had varying effects on repellency, leaving it unchanged, destroying it or enhancing it, depending on the soil temperature reached. The main post-fire hydrogeomorphological changes have been widespread erosion and colluvial and alluvial deposition of topsoil in foot-slope locations and river systems, but only localised redistribution of the highly erodible, repellent sandy subsurface layer. The fire did not trigger major geomorphological change in the study area, but fires probably cause important topsoil and nutrient depletion and may also affect water quality.
CONVERGENCE OF A FULLY DISCRETE FINITE ELEMENT METHOD FOR A DEGENERATE PARABOLIC SYSTEM MODELLING NEMATIC LIQUID CRYSTALS WITH VARIABLE DEGREE OF ORIENTATION

We consider a degenerate parabolic system which models the evolution of nematic liquid crystal with variable degree of orientation. The system is a slight modification to that proposed in [Calderer et al. , SIAM J. Math. Anal. 33 (2002) 1033–1047], which is a special case of Ericksen's general continuum model in [Ericksen, Arch. Ration. Mech. Anal. 113 (1991) 97–120]. We prove the global existence of weak solutions by passing to the limit in a regularized system. Moreover, we propose a practical fully discrete finite element method for this regularized system, and we establish the (subsequence) convergence of this finite element approximation to the solution of the regularized system as the mesh parameters tend to zero; and to a solution of the original degenerate parabolic system when the the mesh and regularization parameters all approach zero. Finally, numerical experiments are included which show the formation, annihilation and evolution of line singularities/defects in such models.
Improving the administration of off‐campus student teaching

With the desire to improve the administration of the off-campus student teaching program at Park College, Parkville, Missouri, the writer undertook a study' of administrative policies and practices related to off-campus elementary student teaching in Missouri. The administrative aspects selected for consideration were: (1) policy development, (2) contractual relationships, (3) institutional control, (4) financial arrangements, (5) transportation considerations, (6) inservice training of cooperating school system personnel, and (7) followup services for graduates.
Victimization, Victims' Needs, and Empowerment in Victim Offender Mediation

This exploratory qualitative study examined victims' experiences in a Victim Offender Mediation (VOM). The focus was on the needs of the victims and to what extent the needs were met through VOM. In addition to prolonged observations, we conducted 34 interviews with VOM participants from four completed VOM cases that were processed in one mid-sized Midwestern city in the United States. Victims identified three critical needs: 1) sharing victimization; 2) acquiring further information; and 3) receiving a sincere apology. Victims indicated that the first two activities deepened their understandings about the incidents and consequently led them to be empowered. However, the lack of receiving a perceived sincere apology was in contrast. We discuss this gap through the lens of empowerment theories and make recommendations to promote empowering restorative justice for victims.
Rendering hair using pixel blending and shadow buffers

A technique is described for adding natural-looking hair to standard rendering algorithms. Using an explicit hair model, in which each individual hair is represented by a three-dimensional curve, the technique uses pixel blending combined with Z-buffer and shadow buffer information from the scene to yield a final anti-aliased image with soft shadows. Although developed for rendering human hair, this technique can also be used to render any model consisting of long filaments of sub-pixel width. The technique can be adapted to any rendering method that outputs Z-buffer and shadow buffer information and is amenable to hardware implementation
An assessment and comparison of common software cost estimation modeling techniques

This paper investigates two essential questions related to data-driven, software cost modeling: (1) What modeling techniques are likely to yield more accurate results when using typical software development cost data? and (2) What are the benefits and drawbacks of using organization-specific data as compared to multi-organization databases? The former question is important in guiding software cost analysts in their choice of the right type of modeling technique, if at all possible. In order to address this issue, we assess and compare a selection of common cost modeling techniques fulfilling a number of important criteria using a large multi-organizational database in the business application domain. Namely, these are: ordinary least squares regression, stepwise ANOVA, CART, and analogy. The latter question is important in order to assess the feasibility of using multi-organization cost databases to build cost models and the benefits gained from local, company-specific data collection and modeling. As a large subset of the data in the multi-company database came from one organization, we were able to investigate this issue by comparing organization-specific models with models based on multi-organization data. Results show that the performances of the modeling techniques considered were not significantly different, with the exception of the analogy-based models which appear to be less accurate. Surprisingly, when using standard cost factors (e.g., COCOMO-like factors, Function Points), organization specific models did not yield better results than generic, multi-organization models.
Transcontinental communication and quantitative digital histopathology via the Internet; with special reference to prostate neoplasia.

OBJECTIVE To describe practical experiences in the sharing of very large digital data bases of histopathological imagery via the Internet, by investigators working in Europe, North America, and South America. MATERIALS Experiences derived from medium power (sampling density 2.4 pixels/microm) and high power (6 pixels/microm) imagery of prostatic tissues, skin shave biopsies, breast lesions, endometrial sections, and colonic lesions. Most of the data included in this paper were from prostate. In particular, 1168 histological images of normal prostate, high grade prostatic intraepithelial neoplasia (PIN), and prostate cancer (PCa) were recorded, archived in an image format developed at the Optical Sciences Center (OSC), University of Arizona, and transmitted to Ancona, Italy, as JPEG (joint photographic experts group) files. Images were downloaded for review using the Internet application FTP (file transfer protocol). The images were then sent from Ancona to other laboratories for additional histopathological review and quantitative analyses. They were viewed using Adobe Photoshop, Paint Shop Pro, and Imaging for Windows. For karyometric analysis full resolution imagery was used, whereas histometric analyses were carried out on JPEG imagery also. RESULTS The three applications of the telecommunication system were remote histopathological assessment, remote data acquisition, and selection of material. Typical data volumes for each project ranged from 120 megabytes to one gigabyte, and transmission times were usually less than one hour. There were only negligible transmission errors, and no problem in efficient communication, although real time communication was an exception, because of the time zone differences. As far as the remote histopathological assessment of the prostate was concerned, agreement between the pathologist's electronic diagnosis and the diagnostic label applied to the images by the recording scientist was present in 96.6% of instances. When these images were forwarded to two pathologists, the level of concordance with the reviewing pathologist who originally downloaded the files from Tucson was as high as 97.2% and 98.0%. Initial results of studies made by researchers belonging to our group but located in others laboratories showed the feasibility of making quantitative analysis on the same images. CONCLUSIONS These experiences show that diagnostic teleconsultation and quantitative image analyses via the Internet are not only feasible, but practical, and allow a close collaboration between researchers widely separated by geographical distance and analytical resources.
Modulation of synaptic transfer between retinal cones and horizontal cells by spatial contrast

We studied the influence of steady annular light on the kinetics and sensitivity of horizontal cell (HC) responses to modulation of the intensity of small concentric spots in the turtle retina. As shown by previous investigators, when the intensity of the annulus was equal to the mean spot intensity, spot response kinetics were the same as those for the modulation of spatially uniform light. Turning off the annulus attenuated dramatically high-frequency flicker sensitivity and enhanced somewhat low-frequency sensitivity. This phenomenon reflects a modulation of synaptic transfer between cones and second-order neurons that is mediated by cones, and it will be referred to as cone-mediated surround enhancement (CMSE). Our main results are as follows: (a) The change in test-spot response sensitivity and kinetics upon dimming a steady surrounding annulus is a consequence of the change in spatial contrast rather than change in overall light level. (b) Introduction of moderate contrast between the mean spot intensity and steady surrounding light intensity causes a marked change in spot response kinetics. (c) The dependence of spot response kinetics on surrounding light can be described by a phenomenological model in which the steady state gain and the time constant of one or two single-stage, low-pass filters increase with decreasing annular light intensity (d) The effect of surrounding light on spot responses of a given HC is not determined by change in the steady component of the membrane potential of that cell. (e) Light outside the receptive field of an HC can affect that cell's spot response kinetics. (f) In an expanding annulus experiment, the distance over which steady annular light affects spot response kinetics varies among HCs and can be quite different even between two cells with closely matched receptive field sizes. (g) The degree of CMSE is correlated with HC receptive field size. This correlation suggests that part of the enhancement mechanism is located in the HC. Taken together, our results suggest the involvement of the inner retina in CMSE.
Interpersonal attraction, social identification and psychological group formation

Two perspectives on the nature of the social group and psychological group formation are discussed. The traditional social cohesion approach traces group formation to processes of interpersonal attraction, while the social identity approach defines the group in cognitive terms and considers identification, or self-categorization, to be the mechanism of psychological group formation. On the basis of an experiment by Turner, Sachdev and Hogg (1983) it is hypothesized that interpersonal attraction (positive or negative) is related to group formation only in so far as it enhances intergroup distinctiveness. This hypothesis is experimentally tested in a 2 × 3 (interpersonal liking/disliking per se versus no explicit categorization/random categorization/criterial categorization on the basis of affect) factorial design employing the ‘minimal group’ paradigm. People who like each other and were not explicitly categorized formed a group. This effect was enhanced by criterial categorization but disappeared when categorization was random. Although the results do not support the hypothesis, they are not explicable in social cohesion terms. A social identity explanation is furnished—attraction influences group formation by acting, under certain specifiable conditions, as a cognitive criterion for common category membership. This explanation is located in current theorizing and is proposed as part of a reconceptualization of the relationship between interpersonal attraction and group formation.
Accuracies of the synthesized monochromatic CT numbers and effective atomic numbers obtained with a rapid kVp switching dual energy CT scanner.

PURPOSE This study was performed to investigate the accuracies of the synthesized monochromatic images and effective atomic number maps obtained with the new GE Discovery CT750 HD CT scanner. METHODS A Gammex-RMI model 467 tissue characterization phantom and the CT number linearity section of a Phantom Laboratory Catphan 600 phantom were scanned using the dual energy (DE) feature on the GE CT750 HD scanner. Synthesized monochromatic images at various energies between 40 and 120 keV and effective atomic number (Z(eff)) maps were generated. Regions of interest were placed within these images/maps to measure the average monochromatic CT numbers and average Z(eff) of the materials within these phantoms. The true Z(eff) values were either supplied by the phantom manufacturer or computed using Mayneord's equation. The linear attenuation coefficients for the true CT numbers were computed using the NIST XCOM program with the input of manufacturer supplied elemental compositions and densities. The effects of small variations in the assumed true densities of the materials were also investigated. Finally, the effect of body size on the accuracies of the synthesized monochromatic CT numbers was investigated using a custom lumbar section phantom with and without an external fat-mimicking ring. RESULTS Other than the Z(eff) of the simulated lung inserts in the tissue characterization phantom, which could not be measured by DECT, the Z(eff) values of all of the other materials in the tissue characterization and Catphan phantoms were accurate to 15%. The accuracies of the synthesized monochromatic CT numbers of the materials in both phantoms varied with energy and material. For the 40-120 keV range, RMS errors between the measured and true CT numbers in the Catphan are 8-25 HU when the true CT numbers were computed using the nominal plastic densities. These RMS errors improve to 3-12 HU for assumed true densities within the nominal density +/- 0.02 g/cc range. The RMS errors between the measured and true CT numbers of the tissue mimicking materials in the tissue characterization phantom over the 40-120 keV range varied from about 6 HU-248 HU and did not improve as dramatically with small changes in assumed true density. CONCLUSIONS Initial tests indicate that the Z(eff) values computed with DECT on this scanner are reasonably accurate; however, the synthesized monochromatic CT numbers can be very inaccurate, especially for dense tissue mimicking materials at low energies. Furthermore, the synthesized monochromatic CT numbers of materials still depend on the amount of the surrounding tissues especially at low keV, demonstrating that the numbers are not truly monochromatic. Further research is needed to develop DE methods that produce more accurate synthesized monochromatic CT numbers.
MicroRNA-130b and microRNA-374b mediate the effect of maternal dietary protein on offspring lipid metabolism in Meishan pigs

To investigate whether the effect of maternal dietary protein on offspring lipid metabolism is mediated by microRNA (miRNA), fourteen Meishan sows were fed either low-protein (LP, half of standard protein (SP) level, n 7) or SP (n 7) diets throughout gestation and lactation periods. PPAR-γ and CCAAT/enhancer-binding protein-β (C/EBP-β) protein expression was evaluated. The expression of miRNA predicted to directly target PPAR-γ and C/EBP-β in the subcutaneous fat of offspring at weaning age was determined, and the functions of these potential miRNA were verified. The results showed that piglet body weight and back fat thickness were significantly decreased in the LP group compared with the SP group (P< 0·05). The protein level of PPAR-γ was significantly decreased and C/EBP-β protein expression was also decreased, though not significantly (P= 0·056), in the subcutaneous fat of the LP group. Furthermore, miRNA expression analysis showed that miR-130b, targeting the PPAR-γ 3′-untranslated region (UTR), and miR-374b, targeting the C/EBP-β 3′-UTR, were significantly increased in the LP group compared with the SP group; other candidate regulatory miRNA were expressed similarly in both groups. Dual luciferase activity assay results indicated that miR-130b directly recognised and bound to the 3′-UTR of PPAR-γ and thereby suppressed PPAR-γ gene expression. Similar results were found for miR-374b and the 3′-UTR of C/EBP-β. The present study showed that miR-130b and miR-374b are involved in the effect of maternal dietary protein on offspring lipid metabolism in pigs. These results shed new light on our understanding of the maternal effect on offspring lipid deposition.
Impairment of Dynamic Single‐Leg Balance Performance in Individuals With Hip Chondropathy

Impaired balance control has been reported in the elderly with hip osteoarthritis, yet this relationship has not been explored in young adults with hip chondropathy. This study aimed to determine whether people with hip chondropathy demonstrated impaired balance ability during a dynamic single‐leg squat with eyes open (SquatEO) and a single‐leg standing task with eyes closed (StandEC) and whether hip range of motion (ROM) and hip muscle strength were correlated with balance measures in adults with hip chondropathy.
A Statewide Study of Knowledge and Attitudes Regarding Health Care Transition

In this article, the authors present the results of a survey of interagency transition council members that assessed familiarity with health care transition (HCT) and the inclusion of HCT-related goals in individualized educational plans (IEP). School personnel, agency representatives, and family members completed a total of 187 surveys. Respondents reported limited knowledge of HCT, and HCT-related issues were often not addressed through school-based transition activities. Respondents, however, reported a high level of interest in learning more about the issue of HCT. Implications of this research include the need to provide additional training to schools, agency representatives, and family members regarding the importance of expanding current educational transition practices to include HCT.