Miracle-dz/UniFAR-FTUs huggingface dataset:
Self-Regulated Learning Strategies and Achievement in an Introduction to Information Systems Course

s International, 58(01), 78A. (UMI No. 9720596) Ames, R. , & Lau, S. (1982). An attributional analysis of help seeking in academic settings. Journal of Educational Psychology, 74(4), 414-423. Anderson, J., Reder, L. , & Simon, H. (1995). Applications and misapplications of cognitive psychology to mathematics education. Retrieved July 17, 2001 from http://act.psy. cmu.edu/personal/ ja/misapplied.html Bong, M. (1998). Effects of scale differences on the generality of academic self -efficacy judgments. (ERIC Document Reproduction Service No. ED422379) Bredo, E. (1997). The social construction of learning. In G. D. Phye (Ed.), Handbook of academic learning: Construction of knowledge (pp. 3-45). San Diego, CA: Academic Press. Britton, B. K. , & Tessor, A. (1991). Effects of time management practices on college grades. Journal of Educational Psychology, 83(3), 405-410. Chalupa, M. , & Chen, C. (in press). An analysis of college students’ motivation and learning strategies in computer courses: A cognitive view. Delta Pi Epsilon Journal. Corno, L. (1989). Self-regulated learning: A volitional analysis. In B. J. Zimmerman & D. H. Schunk (Eds.), Self-regulated learning and academic achievement: Theory, research, and practice (pp. 111-141). New York: Springer-Verlag. Corno, L. (1994). Student volition and education: Outcomes, influences, and practices. In B J. Zimmerman & D. H. Schunk (Eds.), Self-regulation of learning and performance (pp. 229-254). Hillsdale, NJ: Lawrence Erlbaum Associates. Coppola, B. P. (1995). Progress in practice: Using concepts from motivational and self-regulated learning research to improve chemistry instruction. In P. R. Pintrich (Ed.), Understanding self-regulated learning (pp. 8787-96). San Francisco, CA:
Dietary Intake and Anthropometric Status Differ for Anaemic and Non-anaemic Rural South African Infants Aged 6–12 Months

The study was undertaken to determine anthropometric measurements, sociodemographic data, and dietary intake of 238 anaemic and 241 non-anaemic rural South African infants aged 6–12 months. Logistic regression with anaemia as a dependent variable showed an odds ratio (OR) of 1.89 (95% confidence interval [CI] 1.01–3.52) for low birth-weight, 2.04 (CI 1.29–3.22) for maternal age 20 years or younger, 2.21 (CI 1.29–3.76) for consumption of tea, and 0.40 (CI 0.26–0.63) for formula feeding. The anaemic infants, aged 6−<9 months, had a lower average weight gain per month than the non-anaemic infants (727 g vs 772 g; p=0.040, analysis of variance). Logistic regression with underweight as a dependent variable showed an OR of 3.55 (CI 1.26–10.01) for anaemia, and with stunting as a dependent variable, the OR was 2.71 (CI 1.46–5.02). Low birth-weight, a young mother aged 20 years or younger, and consumption of tea were identified as risk factors for anaemia, while formula feeding was shown to have a protective effect. The anaemic infants were more likely to show growth faltering.
Evidence for Time-dependent Maximum Increase of Free Radical Damage and Eicosanoid Formation in the Brain as Related to Duration of Cardiac Arrest and Cardio-pulmonary Resuscitation

Recovery of neurological function in patients following cardiac arrest and cardiopulmonary resuscitation (CPR) is a complex event. Free radical induced oxidative stress is supposed to be involved in this process. We studied levels of 8-iso-PGF 2 f (indicating oxidative injury) and 15-keto-dihydro-PGF 2 f (indicating inflammatory response) in venous plasma obtained from the jugular bulb in a porcine model of experimental cardiopulmonary resuscitation (CPR) where 2, 5, 8, 10 or 12 min of ventricular fibrillation (VF) was followed by 5 or 8 min of closed-chest CPR. A significant increase of 8-iso-PGF 2 f was observed immediately following restoration of spontaneous circulation in all experiments of various duration of VF and CPR. No such increase was seen in a control group. When compared between the groups there was a duration-dependent maximum increase of 8-iso-PGF 2 f which was greatest in animals subjected to the longest period (VF12 min+CPR8 min) of no or low blood flow. In contrast, the greatest increase of 15-keto-dihydro-PGF 2 f was observed in the 13 min group (VF8 min+CPR5 min). Thus, a time-dependent cerebral oxidative injury occurs in conjunction which cardiac arrest and CPR.
A 1.4 GHz differential low-noise CMOS frequency synthesizer using a wideband PLL architecture

The growing importance of wireless media for voice and data communications is driving a need for higher integration in personal communications transceivers to achieve lower cost, smaller form factor, and lower power dissipation. One approach to this problem is to integrate the RF functionality in low-cost CMOS technology together with the baseband transceiver functions. This in turn requires integration of the frequency synthesizer with enough isolation from supply noise to allow it to coexist with other on-chip transceiver circuitry and still meet the phase noise performance requirements of the application. This differential synthesizer for block-down-convert receivers achieves improved levels of phase noise and supply rejection performance through the use of fully-differential architecture and a wide-bandwidth PLL.
Narrowband interference avoidance in ultra wideband communication systems

In this paper we present a new method for mitigating narrowband interference in OFDM-based ultrawide band (UWB) communication systems. This is based on spectral shaping of the transmitted signal using binary signature sequences with minimum total squared correlation (TSC) to avoid the narrowband interfering signal. When spectral shaping is employed, the spectrum of the transmitted signal has a gap in the frequency band of the narrowband interfering signal, and therefore avoids transmitting in this band. The proposed method is illustrated with plots that show the spectrum of the transmitted signal with and without spectral shaping. Numerical results obtained from simulations showing the bit error rate (BER) performance of the system with and without spectral shaping are also presented
MODELING AND MEASURING THE ECONOMIC ROLES OF TECHNOLOGY INFRASTRUCTURE

Designing and managing an economy's technology infrastructure requires both accurate economic models and data to drive them. Previous models treat technology as a homogeneous entity, thereby precluding assessing investment barriers affecting infrastructure elements. The model presented overcomes this deficiency by disaggregating the knowledge production function into key elements of the typical industrial technology based on the distinctly different investment incentives associated with each element. Without such a model, the economist's ability to assess important market failures associated with investment in the major technology elements, including those with infrastructure (public-good) characteristics, is compromised. Unfortunately, even with the correct knowledge production function, the required data are difficult to collect. This forces government agencies, which fund a majority of technology infrastructure research, to use second-best approaches for economic analyses. The second half of this paper therefore presents an analytical framework that can be driven by more accessible data and provide reasonable impact assessments until better data become available.
The major cause of multiple sclerosis is environmental: genetics has a minor role - Yes

It is clear that multiple sclerosis (MS) has a complex aetiology that involves both genetic and environmental factors and that both make a significant contribution to causation. However, the weight of evidence would favour a significantly greater role for the environment over genetics. There is now ample evidence for a profound effect of the environment on MS causality, with at least four and probably more factors directly contributing, with the reported effect sizes significantly greater than any identified genetic factor.
Consumer frauds and the uninformed: Evidence from an online field experiment

Economists accept consumer frauds as an equilibrium outcome of information costs. This paper empirically investigates what information is costly, what contribute to the information costs, and what institutions are more effective in reducing the information costs. We focus on one of the most complained about markets - Internet auctions. In a field experiment, we obtain actual baseball cards from both online and retail markets whose quality are then professionally graded and compared to the prices paid by online buyers for goods with similar claims. The experiment allows us to obtain a key variable - true quality - on top of price and seller ratings used in the existing literature. Our findings indicate that some naive buyers in the online ungraded market are misled by non-credible claims of quality. They pay higher prices but do not receive better quality and in fact are defrauded more often. In comparison, claim-driven frauds do not exist in retail or graded markets where buyers can observe card quality either through careful quality examination before purchase or a third-party grading service. Online seller reputation is found to be effective for identifying good-faith sellers. But conditional on completed auctions, reputable sellers do not provide better quality. More disturbingly, the price increase from making non-credible claims more than compensates for the lower likelihood of sale for sellers with low reputations. We attribute the naivete to misleading signals in the online ungraded market and two loopholes in the eBay rating system, namely universal rating and costless switching of anonymous identities. These loopholes reduce the precision and accessibility of seller information, and therefore add difficulties for naive buyers to become sophisticated. We also point out that naive buyers could impose several negative externalities on the other good-faith players in the market.
The impact of globalisation on South African higher education institutions patterns of academic inflow into the South African higher education system

As globalisation of the world economy continues unabated, a parallel growth of globalization of knowledge is also taking place. This latter trend is little affected by the boundaries between developed and less developed countries and is having a particular impact on the trends of education, in particular on higher education (Moloi et al., 2009). An increasing number of professionals are taking the opportunity to explore the landscape of an international career rather than waiting to be sent by an employer as part of an overseas assignment (Inkson et al., 1997; Suutari & Brewster, 2000). The new careers literature suggests that this trend reflects the increasing flexibility of many contemporary careers where they are now increasingly likely to evolve across international boundaries. Having the flexibility to pursue such a career move which might involve exploring diverse cultures and landscapes presents an inviting prospect. This paper looks at the impact of globalization on higher education within the context of South Africa. It focuses on one particular manifestation of this phenomenon namely the inflow of foreign academics into the higher education institutions of South Africa. It forms the first part of a larger study being undertaken at doctoral level, in which the researcher attempts to investigate the experiences of expatriate academics at South African universities. This first phase of the research is crucial, in order to establish the existence of this particular phenomenon, thereby establishing the importance of this trend as a manifestation of globalization and to determine whether there is a significant inflow of expatriate academics in order to warrant further research.
The use of psychotropic medication during pregnancy: how about the newborn?

Infants are at risk of developing symptoms of Poor Neonatal Adaptation (PNA) after exposure to psychotropic drugs in utero. Such symptoms are largely similar after exposure to antidepressants, antipsychotics and benzodiazepines and consist of mostly mild neurologic, autonomic, respirator and gastro-intestinal abnormalities. Most symptoms develop within 48 hours after birth and last for 2–6 days. After exposure to Selective Serotonin Reuptake Inhibitors (SSRIs), mirtazapine or venlafaxine in utero, breastfeeding is presumably protective for development of PNA. The dosage of antidepressants does not seem to be related to the risk of PNA. In order to objectify possible symptoms of PNA, observation of mother and child at the maternity ward is advisable. If PNA symptoms do not occur, an observation period of 48–72 hours is sufficient. This applies to all types of psychotropic drugs. When PNA symptoms are present it is advisable to observe the infant until the symptoms are fully resolved. Observation can be performed by trained nurses using the Finnegan scoring list. This observation list should be administered every 8 hours. Interpretation of the scores should be carried out by a paediatrician. In most cases symptoms are non-specific. Therefore other diagnoses, such as infection or neurologic problems, have to be excluded. When there is any doubt on possible intoxications during pregnancy, toxicological urine screening is indicated. Most cases of PNA are mild, of short duration and self-limiting without need for treatment. Supporting measures such as frequent small feedings, swaddling and increase of skin to skin contact with the mother is usually sufficient. In case of severe PNA it is advised to admit the infant to the Neonatal Care Unit (NCU). Phenobarbital is a safe therapeutic option. There seem to be no major long term effects; however, additional studies are necessary in order to draw definite conclusions.
Pontine Tegmental Cap Dysplasia: MR Imaging and Diffusion Tensor Imaging Features of Impaired Axonal Navigation

BACKGROUND AND PURPOSE: Malformations of the brain stem are uncommon. We present MR imaging and diffusion tensor imaging (DTI) features of 6 patients with pontine tegmental cap dysplasia, characterized by ventral pontine hypoplasia and a dorsal “bump,” and speculate on potential mechanisms by which it forms. MATERIALS AND METHODS: Birth and developmental records of 6 patients were reviewed. We reviewed MR imaging studies of all patients and DTIs of patient 3. Potential developmental causes were evaluated. RESULTS: All patients were born uneventfully after normal pregnancies except patient 6 (in utero growth retardation). They presented with multiple cranial neuropathies and evidence of cerebellar dysfunction. Variable hypotonia and motor dysfunction were present. Imaging revealed ventral pontine hypoplasia and mild cerebellar vermian hypoplasia, in addition to an unusual rounded to beaklike “bump” on the dorsal surface of the pons, extending into the fourth ventricle. Color fractional anisotropy maps showed the bump to consist of a bundle of axons directed horizontally (left-right). The bump appeared, on morphologic images, to be continuous with the middle cerebellar peduncles (MCPs), which were slightly diminished in size compared with those in healthy infants. Analysis of the DTI was, however, inconclusive regarding the connections of these axons. The decussation of the MCPs, transverse pontine fibers, and longitudinal brain stem axonal pathways was also abnormal. CONCLUSIONS: Our data suggest that the dorsal transverse axonal band in these disorders results from abnormal axonal pathfinding, abnormal neuronal migration, or a combination of the 2 processes.
Working the ‘in-between-spaces’ for transformation within the academy

This paper considers the importance of ‘in-between spaces’ within the academy for challenging dominant institutional culture and hegemonic power relations towards a ‘de-colonised’ university. It questions ‘mainstreaming’ of transformational initiatives, as this can bring about regulation, rather than the turbulence that is often what is needed for substantive change to occur. I draw on a case study of the work of the Division for Lifelong Learning (DLL) at University of the Western Cape and in particular two examples of its marginal activities which were hosted regularly over a 10 year period. These are: the Vice-Chancellor’s Annual Julius Nyerere Lecture on Lifelong Learning and the cross-campus Annual Women’s Breakfast . I use documentary evidence and insider knowledge to reflect critically on the relevance of the spaces that were created for enacting such alternative institutional practices. I employ ‘knowledge democracy’ as a lens to bring the margins to the centre of the analysis. The argument is made that the work in the ‘in-between-spaces’ is a critical part of ‘decolonising education’ through disruptive, political, pedagogical, and organisational transformation. Keywords: decolonising education; feminist popular education; ‘in-between’ pedagogical spaces; knowledge democracy; lifelong learning; transformation
Doing one's duty: chronological age, felt autonomy, and subjective well‐being

Existential, psychosocial, and organismic theories propose that human beings tend towards greater autonomy over the lifespan, and that greater autonomy is associated with greater happiness. We tested these two ideas in the under‐studied domain of social duties by examining the associations between chronological age, felt autonomy while engaging in various social duties, and subjective well‐being (SWB). Study 1 found that older Americans felt more autonomous while voting, tipping, and paying taxes, Study 2 showed that American parents felt more autonomous in their work and citizenship roles compared with their own children, and Study 3 found that older Singaporeans felt more autonomous while obeying authorities, helping distant relatives, and staying politically informed. In all three studies, felt autonomy was also associated with higher SWB. It appears that older persons better internalize their social duties, to their own and societies' benefit. Copyright © 2004 John Wiley & Sons, Ltd.
Enhanced thrombin generation in plasma of severe thrombocytopenic patients due to rFVIIa

Summary RFVIIa-enhanced thrombin generation has been shown to be dependent on platelets. In previous work we have shown that addition of monocytes and rFVIIa to microparticle free plasma causes a distinct thrombin generation. The aim of our study has been to examine whether there is enough surface provided by microparticles in thrombocytopenic plasma to allow an effect of rFVIIa. Patients, methods: Thrombin generation was measured in platelet rich plasma (PRP) and microparticle free plasma (MFP) of thrombocytopenic haemato-oncological patients with and without addition of rVIIa by means of calibrated automated thrombography. Microparticles were analyzed in PRP by FACS flow cytometry. Results: Microparticle free plasma showed no thrombin generation with or without addition of rFVIIa. Addition of rFVIIa to PRP of thrombocytopenic patients led to a significant shortening of lag time and time to peak in thrombin generation, while ETP and peak remained unchanged. Conclusion: Our results show that even in plasma of severe thrombocytopenic patients enough surface may be provided by microparticles to allow an enhancement of thrombin generation by rFVIIa.
Carbon Dioxide Emissions in the Short Run: The Rate and Sources of Economic Growth Matter

This paper investigates the short-run effects of economic growth on carbon dioxide emissions from the combustion of fossil fuels and the manufacture of cement for 189 countries over the period 1961–2010. Contrary to what has previously been reported, we conclude that there is no strong evidence that the emissions-income elasticity is larger during individual years of economic expansion as compared to recession. Significant evidence of asymmetry emerges when effects over longer periods are considered. We find that economic growth tends to increase emissions not only in the same year, but also in subsequent years. Delayed effects – especially noticeable in the road transport sector – mean that emissions tend to grow more quickly after booms and more slowly after recessions. Emissions are more sensitive to fluctuations in industrial value-added than agricultural value-added, with services being an intermediate case. On the expenditure side, growth in consumption and in investment have similar implications for national emissions. External shocks have a relatively large emissions impact, and the short-run emissions-income elasticity does not appear to decline as incomes increase. Economic growth and emissions have been more tightly linked in fossil-fuel rich countries.
Experimental optimization of pivot point height for swing-arm type rear suspensions in off-road bicycles.

Towards the ultimate goal of designing dual suspension off-road bicycles which decouple the suspension motion from the pedaling action, this study focused on determining experimentally the optimum pivot point height for a swing-arm type rear suspension such that the suspension motion was minimized. Specific objectives were (1) to determine the effect of interaction between the front and rear suspensions on the optimal pivot point height, (2) to investigate the sensitivity of the optimal height to the pedaling mechanics of the rider in both the seated and standing postures, (3) to determine the dependence of the optimal height on the rider posture. Eleven experienced subjects rode a custom-built adjustable dual suspension off-road bicycle, [Needle, S. , and Hull, M. L. , 1997, "An Off-Road Bicycle With Adjustable Suspension Kinematics," Journal of Mechanical Design 119, pp. 370-375], on an inclined treadmill. The treadmill was set to a constant 6 percent grade at a constant velocity of 24.8 km/hr. With the bicycle in a fixed gear combination of 38 x 14, the corresponding cadence was 84 rpm. For each subject, the pivot point height was varied randomly while the motions across both the front and rear suspension elements were measured. Subjects rode in both the seated and standing postures and with the front suspension active and inactive. It was found that the power loss from the rear suspension at the optimal pivot point height was not significantly dependent on the interaction between the front and rear suspensions. In the seated posture, the optimal pivot point height was 9.8 cm on average and had a range of 8.0-12.3 cm. The average optimal pivot point height for the seated posture corresponded to an average power loss for the rear suspension that was within 10 percent of the minimum power loss for each subject for 8 of the 11 subjects. In the standing posture, the average height was 5.9 cm and ranged from 5.1-7.2 cm. The average heightfor the standing posture was within 10 percent of the minimum power loss for each subject for 9 of the 11 subjects. While the optimum height was relatively insensitive to pedaling mechanics in both the seated and standing postures, the choice of the optimal pivot point height in production bicycles necessitates some compromise in performance given the disparity in the averages between the seated and standing postures.