Miracle-dz/UniFAR-FTUs huggingface dataset:
The Student Teacher/Cooperating Teacher Collaborative Study: A New Source of Knowledge

In recent years educators at all levels have stressed the importance of classroom teachers' becoming more involved with research. Myers (1985) has suggested that teachers adopt procedures from published studies to conduct classroom inquiry, beginning by replicating the research of university scholars. University professors such as Donald Graves have sought to collaborate with the teachers whose students they observe, the investigations serving not only to produce data for analysis but to help teachers rethink their teaching. Others stress the need for classroom teachers to undertake their own research independent of university influence, using such practices as keeping journals (i.e., Strieb, 1985) of their classroom experiences to help provide ideas for inquiry into more effective teaching. The push for classroom teachers to undertake research is motivated by the needs to bring the worlds of practitioners and researchers closer together, to encourage practitioners to investigate the effects of their instruction, and to give practitioner knowledge greater authority. Ultimately, we assume, teachers who conduct research will learn more about their own teaching, share their knowledge with other teachers, and be more receptive to the findings of other researchers. The study of teaching by teachers should improve teaching; we assume that teachers who conduct inquiries whether formal or informal into the effects of their instruction will grow as professionals. Most suggestions for conducting classroom research are aimed at established teachers. Here we posit that learning the benefits of research during student teaching can give aspiring practitioners an opportunity to appreciate the fruits of classroom investigation and gain knowledge of research methods at a time when they are receptive to new ideas. Were teachers to learn methods for classroom inquiry during their professional orientation they could develop attitudes and habits that could foster growth throughout their careers. Rather than have this investigation supervised solely by a university authority, we propose
Envisioning collaboration: including ESOL students and teachers in the mainstream classroom

The inclusion of language learners and the imperative to meet the needs of English language learners in the mainstream classroom call upon teachers of English for speakers of other languages (ESOL teachers) and mainstream teachers to work together; however, little research has been done in US contexts to understand collaborative efforts between ESOL and mainstream teachers. Research thus far has focused on the inclusion of English language learners (ELLs), but this paper argues that we need to look more closely at the inclusion of teachers of ELLs, by examining how three ESOL teachers and three of their mainstream counterparts envision their work as collaborative. We found that when pairs envisioned their work as collaborative, they created a synergy that constructed a broader network of resources for ELLs by bringing together more people, materials, ideas and abilities than either teacher was able to generate alone. This network allowed both teachers in the pair to become part of a larger conversation, and connected both teachers to others who were working to foster the academic success of ELLs.
Single Image Interpolation Via Adaptive Nonlocal Sparsity-Based Modeling

Single image interpolation is a central and extensively studied problem in image processing. A common approach toward the treatment of this problem in recent years is to divide the given image into overlapping patches and process each of them based on a model for natural image patches. Adaptive sparse representation modeling is one such promising image prior, which has been shown to be powerful in filling-in missing pixels in an image. Another force that such algorithms may use is the self-similarity that exists within natural images. Processing groups of related patches together exploits their correspondence, leading often times to improved results. In this paper, we propose a novel image interpolation method, which combines these two forces-nonlocal self-similarities and sparse representation modeling. The proposed method is contrasted with competitive and related algorithms, and demonstrated to achieve state-of-the-art results.
Fecal biomarkers in inflammatory bowel disease

Over the last two decades, knowledge on fecal biomarkers has substantially increased. Nowadays, these non‐invasive markers of inflammation have significant clinical utility in the management of inflammatory bowel disease. Their use informs the decision to perform endoscopy before diagnosis is made right through to influencing therapeutic choices and the need for interval endoscopic assessment. In this review, the roles of two S100 proteins, calprotectin, and S100A12 are described along with that of lactoferrin, in the context of inflammatory bowel disease.
The incremental effect of obstructive sleep apnoea syndrome on arterial stiffness in newly diagnosed essential hypertensive subjects

Objective Although obstructive sleep apnoea syndrome (OSAS) is accompanied by an increased atherosclerotic cardiovascular disease burden, its relationship with arterial stiffness is not yet well determined. We investigated whether essential hypertensive individuals with OSAS are characterized by increased arterial stiffness. Methods Our study population consisted of 46 consecutive patients with newly diagnosed untreated stage I–II essential hypertension suffering from OSAS (35 men, aged 49 ± 8 years) and 53 hypertensive individuals without OSAS, matched for age, sex, and smoking status. All subjects underwent polysomnography, echocardiography and aortic stiffness evaluation by means of carotid–femoral pulse wave velocity (c–fPWV) measurements. Results Hypertensive subjects with OSAS [apnoea/hypopnoea index (AHI) ≥ 5] compared with hypertensive subjects without OSAS (AHI < 5) demonstrated increased levels of body mass index (31.4 ± 4 versus 29.3 ± 4 kg/m2, P = 0.015), office systolic/diastolic blood pressure (151/99 versus 145/94 mmHg, respectively, P < 0.05, for both cases) and relative wall thickness (RWT; 0.46 ± 0.06 versus 0.42 ± 0.07, P = 0.010). Hypertensive subjects with OSAS compared with those without OSAS had significantly increased c–fPWV by 9% (8.56 ± 0.49 versus 7.85 ± 0.93 m/s, P = 0.001) and this difference remained significant even after adjustment for confounders (P = 0.04). In the total study population, c–fPWV was correlated with age (r = 0.35, P = 0.015), office systolic blood pressure (r = 0.30, P = 0.007), RWT (r = 0.30, P = 0.03), logAHI (r = 0.389, P = 0.0001) and minimum oxygen saturation (r = −0.418, P = 0.0001). Conclusions OSAS has a significant incremental effect on aortic stiffening in the setting of middle-aged essential hypertensive subjects. This finding suggests that the presence of OSAS in a hypertensive patient accelerates vascular damage, increasing cardiovascular risk.
IP-cores design for the kNN classifier

We present the systematic design of two linear array IP cores for the k-nearest neighbor (k-NN) benchmark classifier. The need for real-time classification of data vectors with possibly thousands of features (dimensions) motivates the implementation of this widely used algorithm in hardware in order to achieve very high performance by exploiting block pipelining and parallel processing. The two linear array architectures that we designed have been described as soft IP cores in fully parameterizable VHDL that can be used to synthesize effortlessly different k-NN parallel architectures for any desirable combination of the problem size parameters. They have been evaluated for a large variety of parameter combinations and Xilinx FPGAs. It is shown that they can be used to solve efficiently very large size k-NN classification problems, even with thousands of training vectors or vector dimensions, using a single, moderate size FPGA device. Furthermore the FPGA implementations exceed by a factor of two the performance of optimized NVIDIA CUDA API software implementations for the powerful GeForce 8800GTX GPU.
Tournaments and Managerial Incentives in China's Listed Firms: New Evidence

The promotion tournament as a potentially important incentive mechanism for top management in transition economies has not been examined by the emerging literature on managerial incentives in transition economies. This paper is the first attempt to fill this important gap in the literature. The paper begins with modifying the previously-derived empirical predictions from the tournament theory to the context of transition economies in which state ownership still plays a significant role in publicly-traded firms. Specifically, we test the following two hypotheses. First, the winner's prize will need to increase in order to prevent each contestant from lowering his/her effort level in the face of expanding contestant pool. Such an optimal response of the winner's prize to the size of the contestant pool is more evident for China's listed firms that are less controlled by the state. Second, the winner's prize will also need to rise in order to prevent each contestant from reducing his/her effort level in the face of greater market volatility (or more noise in performance measure used to decide on the tournament winner). Using comprehensive financial and accounting data on China's listed firms from 1998 to 2002, augmented by unique data on executive compensation and ownership structure, we find evidence in support of both hypotheses. Finally, we also find evidence suggesting that an increase in the winner's prize will result in enhanced managerial effort and hence improved firm performance, and that the performance effect of the winner's prize is greater for China's listed firms that are less controlled by the state. As such this paper provides yet another piece of evidence that ownership restructuring may be needed for China to successfully transform its SOEs to efficient modernized corporations and reform its overall economy.
Carotid intima-media thickness as a surrogate marker for cardiovascular disease in intervention studies

ABSTRACT Background: Cardiovascular trials using clinical endpoints to assess efficacy typically require followup of large numbers of participants for 3–5 years. This disadvantage has encouraged the search for well-validated surrogate markers for cardiovascular disease (CVD). These markers may provide earlier indications of efficacy in trials involving fewer participants. One approach gaining interest in recent years is the measurement of atherosclerotic progression, a major underlying cause of CVD. Scope: This review article aims to further substantiate the evidence supporting the use of measurement of carotid intima-media thickness (CIMT) as a surrogate marker for atherosclerosis and cardiovascular risk. Findings: CIMT has consistently been related to future CVD events in population studies. CIMT is significantly related with other markers for CVD risk, such as elevated levels of risk factors and presence of atherosclerosis in the coronary arteries. Furthermore, almost all lipid-lowering trials and a large number of blood pressure lowering trials have consistently shown a reduction in progression of CIMT. In addition, the ultrasound technique for measuring CIMT is safe and highly reproducible. Conclusion: Thus, CIMT may be used as a surrogate endpoint in clinical trials to enable the benefits of new therapies or regimens to be more rapidly translated into clinical practice.
Retinal input influences the size and corticocortical connectivity of visual cortex during postnatal development in the ferret

Retinal input plays an important role in the specification of topographically organized circuits and neuronal response properties, but the mechanism and timing of this effect is not known in most species. A system that shows dramatic dependence on retinal influences is the interhemispheric connection through the corpus callosum. Using ferrets, we analyzed the extent to which development of the visual callosal pattern depends on retinal influences, and explored the period during which these influences are required for normal pattern formation. We studied the mature callosal patterns in normal ferrets and in ferrets bilaterally enucleated (BE) at postnatal day 7 (P7) or P20. Callosal patterns were revealed in tangential sections from unfolded and flattened brains following multiple injections of horseradish peroxidase in the opposite hemisphere. We also estimated the effect of enucleation on the surface areas of striate and extrastriate visual cortex by using magnetic resonance imaging (MRI) data from intact brains. In BEP7 ferrets we found that the pattern of callosal connections was highly anomalous and the sizes of both striate and extrastriate visual cortex were significantly reduced. In contrast, enucleation at P20 had no significant effect on the callosal pattern, but it still caused a reduction in the size of striate and extrastriate visual cortex. Finally, retinal deafferentation had no significant effect on the number of visual callosal neurons. These results indicate that the critical period during which the eyes influence the development of callosal patterns, but not the size of visual cortex, ends by P20 in the ferret. J. Comp. Neurol. 520:914–932, 2012. © 2011 Wiley Periodicals, Inc.
The Effects of Organizational Training on Organizational Commitment

This empirical study investigated the impact of organizational training on employee commitment focusing on employees' emotional and affective responses towards their organization. Organizational training is conceptualized within a multidimensional framework consisting of motivation for training, access to training, benefits from training and support for training. The hypothesis of this study has been built on a resource-based view, social exchange theory and psychological contract theory. Field research was conducted through surveys with 298 participants of four- and five-star hotels operating in Izmir, Turkey. Confirmatory factor analyses were used to analyse the quality of the training scales and multiple regression analyses were conducted to test the hypotheses of the study. The results revealed that all dimensions of training positively affected employee commitment. Implications have been presented for both researchers and human resource practitioners as to how to utilize organizational training factors to increase employee commitment.
Fertility and Pregnancy in Primary Adrenal Insufficiency in Germany

Abstract Autoimmune adrenalitis (AA) and congenital adrenal hyperplasia (CAH) are the most common reasons for acquired and monogenetic primary adrenal insufficiency. Both concern women in their fertile years. The aim of the work was to examine fertility rates, pregnancy outcome, and children’s characteristics in AA and CAH patients in 2 German endocrine centers. One hundred and fifty-eight women were contacted. Thirty-nine patients with CAH due to 21-hydroxlase deficiency and 54 AA patients agreed and were included. Information about course and outcome of pregnancies was obtained by questionnaire and telephone interview. Fertility rates were calculated and compared to expected values from the German general population. Twelve CAH patients (30.8%) had 25 pregnancies, which resulted in 16 children. In AA patients, 93 pregnancies in 42 women (75%) were reported resulting in 73 childbirths. Fertility rates were normal in nonclassic CAH and in AA-only patients, but significantly reduced in classic CAH and autoimmune polyendocrine syndrome type 2 (APS-2). Rates of miscarriages were high in all CAH (36%) and APS-2 (22%) patients. The majority of children in both groups were born at term, but rates of cesarean section were elevated in classic CAH and in AA patients<5 years before or after diagnosis. Children born to CAH patients weighed significantly less than expected and 33.3% of them were born small for gestational age. Fertility seems not to be reduced in general, but specific in classic CAH and APS 2 patients. Nevertheless all CAH and AA patients seem to be at risk of miscarriages and cesarean section.
High-saturation-current charge-compensated InGaAs-InP uni-traveling-carrier photodiode

Charge compensation is utilized in an InGaAs-InP uni-traveling-carrier photodiode to mitigate the space-charge effect. A 20-/spl mu/m-diameter photodiode achieved a bandwidth of 25 GHz and large-signal 1-dB compression current greater than 90 mA; the output power at 20 GHz was 20 dBm. A smaller /spl sim/100-/spl mu/m/sup 2/ photodiode exhibited a bandwidth of 50 GHz and large-signal 1-dB compression current greater than 50 mA. The maximum RF output power at 40 GHz was 17 dBm.
Mass ratios of the components in T Tauri binary systems and implications for multiple star formation

Using near-infrared speckle interferometry we have obtained resolved JHK-photometry for the components of 58 young binary systems. From these measurements, combined with other data taken from literature, we derive masses and particularly mass ratios of the components. We use the J-magnitude as an indicator for the stellar luminosity and assign the optical spectral type of the system to the primary. On the assumption that the components within a binary are coeval we can then place also the secondaries into the HRD and derive masses and mass ratios for both components by comparison with different sets of current theoretical pre-main sequence evolutionary tracks. The resulting distribution of mass ratios is comparatively flat for M(2)/M(1) > 0.2, but depends on assumed evolutionary tracks. The mass ratio is neither correlated with the primary's mass or the components' separation. These findings are in line with the assumption that for most multiple systems in T associations the components' masses are principally determined by fragmentation during formation and not by the following accretion processes. Only very few unusually red objects were newly found among the detected companions. This finding shows that the observed overabundance of binaries in the Taurus-Auriga association compared to nearby main sequence stars should be real and not the outcome of observational biases related to infrared observing.
Effect of prenatal diagnosis on outcomes in D-transposition of the great arteries.

BACKGROUND By decreasing preoperative morbidity, prenatal diagnosis could improve neurodevelopmental outcomes in infants with critical congenital heart disease. We explored the impact of prenatal diagnosis on perinatal and perioperative variables and on outcomes at 1 year of age. METHODS We analyzed a database of children enrolled in prospective studies on surgical support techniques from 1988 to 2000. Selection criteria included a diagnosis of D-transposition of the great arteries with intact ventricular septum or ventricular septal defect, no extracardiac congenital anomalies, birth weight >2.3 kg, and repair by arterial switch procedure. RESULTS Of 346 patients at enrollment, 25 had a prenatal diagnosis, and 321 did not. Children with prenatal diagnosis, compared with those without, had a lower likelihood of birth by spontaneous labor, lower birth weights, lower Apgar 5 scores, a higher rate of preoperative endotracheal intubation, and surgery at a younger age. They tended to have a lower incidence of fetal distress during labor. At 1 year of age, 272 patients were tested with the Psychomotor Development Index and Mental Development Index of the Bayley Scales. Mean z scores were similar in those with and without prenatal diagnosis for both Psychomotor Development Index (-0.92 +/- 0.93 vs -0.88 +/- 1.05) and Mental Development Index (-0.29 +/- 1.13 vs -0.41 +/- 0.93). CONCLUSIONS Infants with D-transposition of the great arteries with and without prenatal diagnosis differed with respect to perinatal and perioperative variables, but their development at 1 year of age was similar. Future studies should include a greater number of children with prenatal diagnosis and a variety of congenital heart lesions.
A Galloping Horse Model

A two-dimensional numerical model of a horse is presented that predicts the locomotory behaviors of galloping horses, including how stride frequency, stride length, and metabolic rate change from a slow canter to a fast gallop. In galloping, each limb strikes the ground sequentially, one after the other, with distinct time lags separating hind and forelimb footfalls. In the model, each stance limb is represented as an ideal linear spring, and both feed-forward and feedback control strategies determine when each limb should strike the ground. In a feed-forward strategy, the first hindlimb and the first forelimb to strike the ground are phase-locked such that the time separating their adjacent footfalls is held constant by the controller. In distinction, in a feedback strategy, the footfalls of the second hindlimb and the second forelimb begin when the first hindlimb and the first forelimb are perpendicular to the model’s trunk, respectively. While any limb is in contact with the ground, the controller also employs a feedback control to move each stance foot at a constant tangential velocity relative to the model’s trunk. With these control schemes, the galloping model remains balanced without sensory knowledge of its postural orientation relative to vertical. This work suggests that a robot will exhibit behavior that is mechanically similar to that of a galloping horse if it employs spring-like limbs and simple feed-forward and feedback control strategies for which postural stabilization is an emergent property of the system.
The determinants of municipal tax rates in British Columbia

In this paper we study the regional pattern of municipal business property tax rates in the province of British Columbia. Reduced-form tax-setting equations produce some evidence that municipal governments respond to tax changes in neighbouring jurisdictions. A joint investigation of the determinants of tax base and municipal taxation decisions, however, reveals that it is difficult to interpret this response as arising primarily out of competition over tax base. There is also some evidence that municipal tax rates are sensitive to taxes set on the same base by super-municipal bodies.
Evaluation of Artificial Larval Rearing Media Waste as Oviposition Attractant for New World Screwworms (Diptera: Calliphoridae)

ABSTRACT The waste artificial larval rearing media of New World screwworms, Cochliomyia hominivorax (Coquerel) were evaluated to determine their effectiveness as oviposition attractants. Various concentrations of waste larval media resulting from rearing screwworm larvae in gel and cellulose fiber-based artificial diets tested over a 4-wk period attracted varying number of gravid screwworm flies to oviposit. Three-day-old waste medium with concentrations of 10 and 25% were most attractive to gravid female flies for oviposition and resulted in the most oviposition. One and 7-d-old wastes at all concentrations were less attractive for oviposition than the 3d-old media. The fresh (0-d-old), 14-d- and 28-d-old waste media were the least attractive substrates for oviposition. The waste from the cellulose fiber-based diet resulted in significantly more oviposition compared with waste from the gel-based diet. Microorganisms growing in the waste media probably produce metabolites that attract gravid screwworm flies to oviposit. Use of the waste products of appropriate age and dilution as oviposition substrates would enhance oviposition in mass production colony cages.