Miracle-dz/UniFAR-FTUs huggingface dataset:
The effect of welfare-program benefits on the earnings of public-housing residents

The purpose of this dissertation is to investigate empirically the work disincentives of the cash-assistance program for public-housing residents. A two-equation system determining labor earnings and welfare benefits is estimated in a simultaneous-equations limited-dependent variable framework, where both earnings and welfare benefits are treated as endogenous, censored variables. With a sample of public-housing residents from the 1997 wave of the National Survey of American Families, a two-stage Tobit model of annual earnings is estimated. The predicted value from a Tobit regression determining welfare benefits is used as an explanatory variable in the earnings equation. Standard errors are corrected to account for use of this instrumental variable. The model is also estimated within a self-selection framework. Specifically, a bivariate probit selection mechanism determining work and welfare participation, which takes into account any correlation of the error terms due to unobserved characteristics that may affect both choices, is used to augment the annual earnings equation. Accounting for welfare benefits endogeneity, the empirical results indicate that an increase in labor earnings replaces only 35 to 75 percent of a reduction in welfare benefits; a smaller effect than was found assuming exogenous benefits. The selfselection model suggests that unobserved characteristics that negatively affect labor supply (earnings) also positively affect the magnitude of welfare benefits. That is, women who are more likely to have higher welfare benefits are also more likely to have lower earnings, after controlling for measured determinants of both earnings and benefits. The findings imply that HUD’s budget would absorb approximately 25 to 65 percent of any decrease in welfare benefits experienced by women living in public housing.
Towards a portfolio of additionality indicators

R&D subsidies came about because of market imperfections. R&D entails the non-excludability of a public good, as Arrow (1962) stated: “No amount of legal protection can make a thoroughly appropriable commodity of something as intangible as information. The very use of the information in any productive way is bound to reveal it, at least in part. Mobility of personnel among firms provides a way of spreading information. Legally imposed property rights can provide only a partial barrier, since there are obviously enormous difficulties in defining in any sharp way an item of information and differentiating it from similar sounding items. ” Private investments in R&D can never be fully appropriated because other companies have the opportunity to free ride. This leads to underinvestment in R&D activities: the level of R&D expenditure will be below the socially desirable optimum.
Prolonged imatinib‐induced myelosuppression in chronic myeloid leukaemia with an unusually long survival

A case of Philadelphia chromosome positive chronic myeloid leukaemia (CML) with the longest survival ever reported in the medical literature is presented. The duration of the chronic phase was 29 years, the overall survival being 31 years. The clinical course, when challenged with imatinib in the later stages of the disease, was at variance with what is to be expected from the experience in similar situations. Lifelong myelosuppression resulted that interfered with further therapy and contributed to the demise of the patient from sepsis three years later. Caution is suggested with the use of imatinib in fibrotic CML with a low platelet count.
The determinants of corporate internet reporting in Egypt: an exploratory analysis

Purpose The purpose of this paper is to provide exploratory evidence about the use of the internet for disclosure purposes by non-financial companies listed on the Egyptian Exchange – and influences thereon – at two points in time: 2010 and 2011. Selection of these periods permits direct investigation of the extent to which the disruption caused by the popular uprising in early 2011 impacted on practice. Design/methodology/approach The sample comprises all of the 172 non-financial listed companies at the end of 2010. A disclosure index was developed to evaluate the content of the investigated websites in 2010 and 2011. Univariate and multivariate analysis is used to examine the cross-sectional determinants of disclosure both in total and in terms of three specific content categories. Findings The study reveals that 40.7 and 42.7 per cent of the sample companies provided some form of financial information via their websites in 2010 and 2011, respectively (i.e. pre and post the Spring 2011 political revolution). The results of the multivariate analysis indicate consistency across the two years in terms of total score determinants, but some variation in the disaggregated evidence. Originality/value This study indicates that Egyptian firms have started embracing the power of the internet as a disclosure channel, but the extent of these practices is still limited, with great variations evident amongst the sampled companies in this regard. Encouragingly, the disruption caused by the political upheaval in 2011 appears not to have caused reduction in the propensity to provide online disclosures.
On-Chip Coupled Transmission Line Modeling for Millimeter-Wave Applications Using Four-Port Measurements

Transmission lines are fundamental elements in millimeter-wave circuits. In this paper, on-chip coupled transmission lines, fabricated in a commercial 0.18 ¿m complementary metal-oxide semiconductor process, have been modeled, based on measured 50 GHz four-port scattering-parameters. The two-port open-short deembedding technique and thru deembedding method were successfully extended and applied to the four-port structures presented here. The accuracy of the deembedding techniques was verified by full-wave electromagnetic simulation. Based on the deembedded S-parameters, a SPICE-compatible equivalent circuit model of on-chip coupled transmission lines was extracted. Simulation and measurement results agree well over the entire frequency band from 100 MHz up to 50 GHz.
QGrid: An Adaptive Trust Aware Resource Management Framework

Recent years have witnessed the rapid development of Grid computing over the Internet, which promises to empower highly desirable resource sharing and cooperation among different organizations. However, there remains a challenging issue facing Grid environments. Malicious or selfish nodes consume precious resources without contribution or even try to destroy the system intentionally. This can severely degrade the system performance and limit the healthy development of Grid systems. To encourage resource sharing and fight against malicious behaviors, we propose an adaptive resource management framework QGrid which integrates trust factor into economic-driven allocation process. Each provider allocates resources according to the bidding price and the trust value of a requester by controlling the corresponding threshold of price and trust value. The incomplete information is a key issue for a provider in determining the two thresholds. We employ a Q-learning technique to resolve the issue, which can adapt to the dynamics of Grid environments. Furthermore, we introduce a simple isolation scheme to secure the Grid system by frustrating malicious participants from joining the system. A QGrid prototype has been successfully implemented in a real Grid test-bed, CROWN. Theoretical analysis and comprehensive experiments have been conducted, which demonstrate the efficacy of QGrid.
Effect of thalamotomy on focal hand dystonia in a family with DYT1 mutation

We report the clinical and molecular features of a family with focal hand dystonia caused by DYT1 mutation. Four members of a family who underwent thalamotomy showed a marked and sustained therapeutic benefit that lasted for up to 12 years without recurrence of dystonia or any significant surgical complication. The hand dystonia caused by DYT1 mutation may be successfully managed by thalamotomy. © 2008 Movement Disorder Society
Coordination between equilibrium and head-trunk orientation during leg movement: a new strategy build up by training.

1. During unilateral leg movements performed while standing, it is necessary to displace the center of gravity toward the other leg to maintain equilibrium. In addition, the orientation of particular segments, such as the head and trunk, which are used as reference values for organizing the motor act, needs to be preserved. The aim of the present study was to investigate the coordination between movement, equilibrium, and local posture. 2. Experiments were carried out on standing subjects who were instructed to raise one leg laterally to an angle of 45 degrees in response to a light. Two sources of light placed in front of the subject indicated the side on which the movement was to be performed. Three main aspects of the posturokinetic sequence were investigated in two populations, naive subjects and dancers: 1) The body weight transfer toward the supporting leg was found to have two components: first, a "ballistic" one, initiated by a thrust exerted by the moving leg; and second, an "adjustment" component during which the displacement of the center of gravity (CG) reaches a final position (steady state). An early burst in the gastrocnemius medialis of the moving leg often precedes the onset of the center of pressure change. Two differences between naive subjects and dancers were observed: first, the new CG position was almost reached in one step very near to the end of the ballistic component and required only a short adjustment in dancers, whereas in naive subjects it was reached in two steps, including a much longer adjustment component. Second, the dancers were able to minimize the CG displacement toward the supporting side; this might be because they form a better internal representation of the biomechanical limits of stability because of their long training. 2) The onset of the lateral displacement of the malleolus marker of the moving leg always occurred when the body weight had almost completed its transfer to above the support foot. This shows that the positioning of the CG in a new position compatible with equilibrium maintenance was a prerequisite for the leg movement to be performed. The relative timing of events during the posturokinetic sequence was fairly fixed in the dancers, whereas it varied from one trial to another in the naive subjects. 3) The coordination between movement, equilibrium, and head-trunk orientation involves two control strategies. An "inclination" strategy was used by the naive subjects; this consisted of an external rotation of the supporting leg around the anteroposterior ankle joint axis. A counter-rotation at the neck level ensured the stability of the interorbital line in the horizontal plane. (ABSTRACT TRUNCATED AT 400 WORDS)
Cloud Type Classification of Total-Sky Images Using Duplex Norm-Bounded Sparse Coding

Cloud type classification plays an essential role in ground-based cloud observation. However, it is a challenge to accurately identify the cloud categories that involve a large variety of structural patterns and visual appearances. Image representation and classifier are the crucial factors for cloud classification, though they are individually investigated in the literature. This paper proposes a new cloud type classification method using duplex norm-bounded sparse coding (DNSC), which designs image representation and classifier under the same framework, i.e., norm-bounded sparse coding (NSC). NSC is not only used to encode local descriptors, but also well explored to develop an effective classifier. NSC takes both locality and sparseness into account, and it can be benefit to capture discriminative patterns for image representation and have discriminative power for classifier. Furthermore, NSC has closed-form solution and can be computed efficiently. More specifically, DNSC first extracts local descriptor from an input cloud image, and then DNSC forms a holistic representation leveraging NSC and max-pooling strategy. Finally, a classifier is built on the holistic representation using NSC. The proposed DNSC is evaluated on the total-sky cloud image set, and the experimental results demonstrate that DNSC outperforms the state-of-the-art methods and its accuracy increases by about $7\%$ compared with baselines. In addition, the categorywise performance improvement is particularly pronounced over the complex categories, such as Cirriform and Mixed cloudiness.
Regulation of an intracellular subtilisin protease activity by a short propeptide sequence through an original combined dual mechanism

A distinct class of the biologically important subtilisin family of serine proteases functions exclusively within the cell and forms a major component of the bacilli degradome. However, the mode and mechanism of posttranslational regulation of intracellular protease activity are unknown. Here we describe the role played by a short N-terminal extension prosequence novel amongst the subtilisins that regulates intracellular subtilisin protease (ISP) activity through two distinct modes: active site blocking and catalytic triad rearrangement. The full-length proenzyme (proISP) is inactive until specific proteolytic processing removes the first 18 amino acids that comprise the N-terminal extension, with processing appearing to be performed by ISP itself. A synthetic peptide corresponding to the N-terminal extension behaves as a mixed noncompetitive inhibitor of active ISP with a Ki of 1 μM. The structure of the processed form has been determined at 2.6 Å resolution and compared with that of the full-length protein, in which the N-terminal extension binds back over the active site. Unique to ISP, a conserved proline introduces a backbone kink that shifts the scissile bond beyond reach of the catalytic serine and in addition the catalytic triad is disrupted. In the processed form, access to the active site is unblocked by removal of the N-terminal extension and the catalytic triad rearranges to a functional conformation. These studies provide a new molecular insight concerning the mechanisms by which subtilisins and protease activity as a whole, especially within the confines of a cell, can be regulated.
A serological survey of accredited breeding colonies in the United Kingdom for common rodent viruses

This paper reports the results of a general survey, the first in the United Kingdom, carried out on accredited breeding colonies of mice, rats and guinea-pigs over a period of a year. While the results show the potential usefulness of a viral accreditation grading scheme, they also show that contamination of breeding colonies with inapparent viral infections is widespread. This situation can only be improved by the continuous monitoring of animal stocks for rodent viruses, with the aim of improving the standard of animals available for research and for pharmacological, toxicological and routine diagnostic procedures.
The von Neumann Minimax Theorem and its relatives and a study of externality in on-line auctions

This work consists of a theoretical part and an experimental one. The first part provides a simple treatment of the celebrated von Neumann minimax theorem as formulated by Nikaido and Sion. It also discusses its relationships with fundamental theorems of convex analysis. The second part is about externality in sponsored search auctions. It shows that in these auctions, advertisers have externality effects on each other which influence their bidding behavior. It proposes Hal RVarian model and shows howadding externality to this model will affect its properties. In order to have a better understanding of the interaction among advertisers in on-line auctions, it studies the structure of the Google advertisements network and shows that it is a small-world scale-free network.
High Reproducibility of Tumor Hypoxia Evaluated by 18F-Fluoromisonidazole PET for Head and Neck Cancer

Tumor hypoxia is well known to be radiation resistant. 18F-fluoromisonidazole (18F-FMISO) PET has been used for noninvasive evaluation of hypoxia. Quantitative evaluation of 18F-FMISO uptake is thus expected to play an important role in the planning of dose escalation radiotherapy. However, the reproducibility of 18F-FMISO uptake has remained unclarified. We therefore investigated the reproducibility of tumor hypoxia by using quantitative analysis of 18F-FMISO uptake. Methods: Eleven patients with untreated head and neck cancer underwent 2 18F-FMISO PET/CT scans (18F-FMISO1 and 18F-FMISO2) with a 48-h interval prospectively. All images were acquired at 4 h after 18F-FMISO injection for 10 min. The maximum standardized uptake (SUVmax), tumor-to-blood ratio (TBR), and tumor-to-muscle ratio (TMR) of 18F-FMISO uptake were statistically compared between the 2 18F-FMISO scans by use of intraclass correlation coefficients (ICCs). The hypoxic volume was calculated as the area with a TBR of greater than or equal to 1.5 or the area with a TMR of greater than or equal to 1.25 to assess differences in hypoxic volume between the 2 18F-FMISO scans. The distances from the maximum uptake locations of the 18F-FMISO1 images to those of the 18F-FMISO2 images were measured to evaluate the locations of 18F-FMISO uptake. Results: The SUVmax (mean ± SD) for 18F-FMISO1 and 18F-FMISO2 was 3.16 ± 1.29 and 3.02 ± 1.12, respectively, with the difference between the 2 scans being 7.0% ± 4.6%. The TBRs for 18F-FMISO1 and 18F-FMISO2 were 2.98 ± 0.83 and 2.97 ± 0.64, respectively, with a difference of 9.9% ± 3.3%. The TMRs for 18F-FMISO1 and 18F-FMISO2 were 2.25 ± 0.71 and 2.19 ± 0.67, respectively, with a difference of 7.1% ± 5.3%. The ICCs for SUVmax, TBR, and TMR were 0.959, 0.913, and 0.965, respectively. The difference in hypoxic volume based on TBR was 1.8 ± 1.8 mL, and the difference in hypoxic volume based on TMR was 0.9 ± 1.3 mL, with ICCs of 0.986 and 0.996, respectively. The maximum uptake locations of the 18F-FMISO1 images were different from those of the 18F-FMISO2 images and were within the full width at half maximum of the PET/CT scanner, except in 1 case. Conclusion: The values for 18F-FMISO PET uptake and hypoxic volume in head and neck tumors between the 2 18F-FMISO scans were highly reproducible. Such high reproducibility of tumor hypoxia is promising for accurate radiation planning.
Reliability and Usefulness of Random Fecal α1‐Antitrypsin Concentration

The reliability of random fecal arantitrypsin (FA‐l‐AT) concentration has been evaluated by comparing FA‐l‐AT values on random specimens and on concomitant 24–72 h fecal collections. In order to simplify the method, FA‐l‐AT data derived from lyophilized fecal samples were compared with those obtained from 37°C heat‐dried fecal samples. Random FA‐l‐AT concentration was assayed in 80 children with various gastrointestinal illnesses and 36 healthy age‐matched controls. There was a close relationship between FA‐l‐AT values obtained from random samples and 1‐day or 3‐day collections. There was also a significant relationship between FA‐l‐AT values derived from the two different ways of drying the stools. Mean FA‐l‐AT values were statistically different when compared to the controls in the following groups of disorders: untreated and after‐gluten‐challenge celiac disease, post‐enteritis syndrome, and cow'S milk intolerance. The possible meanings of the abnormal FA‐l‐AT concentration in the various disorders are discussed. We conclude that FA‐l‐AT is a simple and reliable test for enteric protein loss. The simplification of the method proposed by us should reduce the cost of the test and moreover make it feasible in all laboratories.
Differences in Muscle Mechanical Properties Between Elite Power and Endurance Athletes: A Comparative Study

Abstract Loturco, I, Gil, S, Laurino, CFdS, Roschel, H, Kobal, R, Cal Abad, CC, and Nakamura, FY. Differences in muscle mechanical properties between elite power and endurance athletes: a comparative study. J Strength Cond Res 29(6): 1723–1728, 2015—The aim of this study was to compare muscle mechanical properties (using tensiomyography—TMG) and jumping performance of endurance and power athletes and to quantify the associations between TMG parameters and jumping performance indices. Forty-one high-level track and field athletes from power (n = 22; mean ± SD age, height, and weight were 27.2 ± 3.6 years; 180.2 ± 5.4 cm; and 79.4 ± 8.6 kg, respectively) and endurance (endurance runners and triathletes; n = 19; mean ± SD age, height, and weight were 27.1 ± 6.9 years; 169.6 ± 9.8 cm; 62.2 ± 13.1 kg, respectively) specialties had the mechanical properties of their rectus femoris (RF) and biceps femoris (BF) assessed by TMG. Muscle displacement (Dm), contraction time (Tc), and delay time (Td) were retained for analyses. Furthermore, they performed squat jumps (SJs), countermovement jumps (CMJs), and drop jumps to assess reactive strength index (RSI), using a contact platform. Comparisons between groups were performed using differences based on magnitudes, and associations were quantified by the Spearman's &rgr; correlation. Power athletes showed almost certain higher performance in all jumping performance indices when compared with endurance athletes (SJ = 44.9 ± 4.1 vs. 30.7 ± 6.8 cm; CMJ = 48.9 ± 4.5 vs. 33.6 ± 7.2 cm; RSI = 2.19 ± 0.58 vs. 0.84 ± 0.39, for power and endurance athletes, mean ± SD, respectively; 00/00/100, almost certain, p ⩽ 0.05), along with better contractile indices reflected by lower Dm, Tc, and Td (Tc BF = 14.3 ± 2.3 vs. 19.4 ± 3.3 milliseconds; Dm BF = 1.67 ± 1.05 vs. 4.23 ± 1.75 mm; Td BF = 16.8 ± 1.6 vs. 19.6 ± 1.3 milliseconds; Tc RF = 18.3 ± 2.8 vs. 22.9 ± 4.0 milliseconds; Dm RF = 4.98 ± 3.71 vs. 8.88 ± 3.45 mm; Td RF = 17.5 ± 1.0 vs. 20.9 ± 1.6 milliseconds, for power and endurance athletes, mean ± SD, respectively; 00/00/100, almost certain, p ⩽ 0.05). Moderate correlations (Spearman's &rgr; between −0.61 and −0.72) were found between TMG and jumping performance. The power group presented better performance in vertical jumps, supporting the validity of these tests to distinguish between endurance and power athletes. Furthermore, TMG can discriminate the “athlete-type” using noninvasive indices moderately correlated with explosive lower-body performance. In summary, both vertical jump and TMG assessments could be useful in identifying and selecting young athletes.