Miracle-dz/UniFAR-FTUs huggingface dataset:
Prevalence of co-morbidity and its relationship to treatment among unselected patients with Hodgkin's disease and non-Hodgkin's lymphoma, 1993-1996

A population-based series of patients with cancer is likely to comprise more patients with serious co-morbidity than clinical trials because of restrictive eligibility criteria for the latter. Since co-morbidity may influence decision-making, we studied the age-specific prevalence of co-morbidity and its relationship to ap- plied treatment. Data on all 194 patients with Hodg- kin's disease (HD) and on 904 patients with non-Hodg- kin's lymphoma (NHL) diagnosed between 1993 and 1996 were derived from the Eindhoven Cancer Regis- try. In the age-group below 60 years, 87% of patients with HD and 80% with NHL did not have a co-morbid condition. The prevalence of serious co-morbidity was 56% for patients with Hodgkin's disease who were 60 years and over and 43% and 61% for non Hodgkin patients who were 60-69 years and 70 years and over, respectively. The most common co-morbid conditions were cardiovascular disease (18%), hypertension (13%), chronic obstructive pulmonary disease (COPD; 13%), and diabetes mellitus (10%) for elderly Hodg- kin's patients. For non-Hodgkin's patients of 60-69 years and 70 years and over, cardiovascular dis- ease (15 and 22%, respectively), hypertension (14 and 14%, respectively), COPD (6 and 10% respectively), and diabetes mellitus (8 and 10%, respectively) were the most prevalent co-morbid conditions. The presence of co-morbidity was not related to stage or grade of dis- ease at diagnosis. In the presence of co-morbidity, 50% less chemotherapy was administered to elderly patients with Hodgkin's disease and 10-15% less to elderly pa- tients with non-Hodgkin's lymphoma. The presence of co-morbidity was associated with a decreased overall survival within the first 4 months after diagnosis in both Hodgkin's disease and non-Hodgkin's lymphoma for all age-groups. In conclusion, serious co-morbidity was found for more than half of all lymphoma patients who were 60 years and older. Elderly patients with serious co-morbidity received chemotherapy less often, which is likely to affect survival adversely, as was indicated by a decreased survival within the first 4 months after di- agnosis.
Conocimiento de matemáticas especializado de los estudiantes para maestro de primaria en relación al razonamiento proporcional

A particular domain of mathematical knowledge for teaching is the specialized content knowledge. This study focuses on examining pre-service primary school teachers' mathematical content knowledge related to proportional reasoning. Results show that pre-service teachers' mathematical content knowledge is limited. These results are supported by pre-service teachers' difficulties in identifying non-proportional situations, in the development of ways of thinking related to the construction of the unit and in the use of the meaning of operator
YBCOのマルチ-プルーム・マルチ-ターンPLD成膜

We have investigated the high-speed deposition of YBa2Cu3O7-x (YBCO) using PLD on a CeO2-capped IBAD buffer layer. In order to speed up the coated conductor process, we introduced a continuous PLD system mainly consisting of high-power laser equipment and a vacuum chamber with a reel-to-reel substrate transfer system. The laser system was designed so that the laser beam scans YBCO targets during deposition and raises plural and discrete plumes (multi-plume). The aim of this is to perform high-speed production of YBCO layers. Although high laser pulse frequency deposition makes high-speed deposition possible, it causes roughening of the surface morphology and lowers the Jc. The multi-plume gave us a high Jc during low laser pulse frequency deposition and high-speed deposition at a higher frequency. The substrates were turned three times to enlarge the deposition area (multi-turn). Within 15 degrees aslant to a plume center, we obtained a high Jc for all turns. Using this multi-plume and multi-turn PLD equipment, we have succeeded in deposition of a 21m-long YBCO layer with a high end-to-end critical current (Ic) of 85 A and high Jc exceeding 1 MA/cm2. Ic data measured in 1.4m intervals showed good uniformity, with a standard deviation of 3.43%. This layer also showed high in-plane alignment, attaining 5.2 degrees of full-width-at-half-maximum as observed by X-ray phi scans. These results indicate the availability of utilizing multi-plume and multi-turn PLD for YBCO-coated conductor preparation.
Surprises in the doping dependence of the Fermi surface in Bi(Pb)-2212

A detailed and systematic ARPES investigation of the doping-dependence of the normal state Fermi surface (FS) of modulation-free (Pb,Bi)-2212 is presented. The FS does not change in topology away from hole-like at any stage. The data reveal, in addition, a number of surprises. Firstly the FS area does not follow the usual curve describing Tc vs x for the hole doped cuprates, but is down-shifted in doping by ca. 0.05 holes per Cu site, indicating either the break-down of Luttinger's theorem or the consequences of a significant bi-layer splitting of the FS. Secondly, the strong k-dependence of the FS width is shown to be doping independent. Finally, the relative strength of the shadow FS has a doping dependence mirroring that of Tc.
Gemini and Hubble Space Telescope Evidence for an Intermediate-Mass Black Hole in ω Centauri

The globular cluster ω Centauri is one of the largest and most massive members of the galactic system. However, its classification as a globular cluster has been challenged making it a candidate for being the stripped core of an accreted dwarf galaxy; this together with the fact that it has one of the largest velocity dispersions for star clusters in our galaxy makes it an interesting candidate for harboring an intermediate-mass black hole. We measure the surface brightness profile from integrated light on an HST ACS image of the center, and find a central power-law cusp of logarithmic slope –0.08. We also analyze Gemini GMOS-IFU kinematic data for a 5'' × 5'' field centered on the nucleus of the cluster, as well as for a field 14'' away. We detect a clear rise in the velocity dispersion from 18.6 km s−1 at 14'' to 23 km s−1 in the center. A rise in the velocity dispersion could be due to a central black hole, a central concentration of stellar remnants, or a central orbital structure that is radially biased. We discuss each of these possibilities. An isotropic, spherical dynamical model implies a black hole mass of 4.0−1.0+0.75 × 104 M☉, and excludes the no black hole case at greater than 99% significance. We have also run flattened, orbit-based models and find similar results. While our preferred model is the existence of a central black hole, detailed numerical simulations are required to confidently rule out the other possibilities.
Search for resonant top quark plus jet production in t(t)over-bar + jets events with the ATLAS detector in pp collisions at root s=7 TeV

This paper presents a search for a new heavy particle produced in association with a top or antitop quark. Two models in which the new heavy particle is a color singlet or a color triplet are considered, decaying, respectively, to (t)over-barq or tq, leading to a resonance within the t(t)over-bar + jets signature. The full 2011 ATLAS pp collision data set from the LHC (4.7 fb(-1)) is used to search for t(t)over-bar events produced in association with jets, in which one of the W bosons from the top quarks decays leptonically and the other decays hadronically. The data are consistent with the Standard Model expectation, and a new particle with mass below 430 Gev for both W' boson and color triplet models is excluded at 95% confidence level, assuming unit right-handed coupling.
The Evolution of the Galactic Morphological Types in Clusters

The morphological types of galaxies in nine clusters in the redshift range 0.1 ≲ z ≲ 0.25 are derived from very good seeing images taken at the NOT and the La Silla-Danish telescopes, with all galaxies at MV < -20 and within the central ~1 Mpc2 area being classified. With the purpose of investigating the evolution of the fraction of different morphological types with redshift, we compare our results with the morphological content of nine distant clusters studied by the MORPHS group, five clusters observed with HST/WFPC2 at redshift z = 0.2-0.3, and Dressler's large sample of nearby clusters. After having checked the reliability of our morphological classification both in an absolute sense and relative to the MORPHS scheme, we analyze the relative occurrence of elliptical, S0, and spiral galaxies as a function of the cluster properties and redshift. We find a large intrinsic scatter in the S0/E ratio, mostly related to the cluster morphology. In particular, in our cluster sample, clusters with a high concentration of ellipticals display a low S0/E ratio and, vice versa, low concentration clusters have a high S0/E. At the same time, the trend of the morphological fractions (%E's, %S0's, %Sp's) and of the S0/E and S0/Sp ratios with redshift clearly points to a morphological evolution: as the redshift decreases, the S0 population tends to grow at the expense of the spiral population, whereas the frequency of E's remains almost constant. We also analyze the morphology-density (MD) relation in our clusters and find that—similarly to higher redshift clusters—a good MD relation exists in the high-concentration clusters, while it is absent in the less concentrated clusters. Finally, the comparison of the MD relation in our clusters with that of the MORPHS sample suggests that the transformation of spirals into S0 galaxies becomes more efficient with decreasing local density.
Prática de atividade física por adolescentes de Fortaleza, CE, Brasil

It aimed to learn the daily habits related to the physical activity practice among private state schools adolescents in Fortaleza-Brazil. We investigated 307 students between 12 and 17 years old from six private schools, in the months March to June 2007. We applied a form which recorded sedentarism, BMI, blood pressure and blood glucose. The chi-squared test was used for to analysis the proportions. About 68% of young people were sedentary. The sedentarism was higher in females surveyed (p=0, 000) and those with over-weight (p=0,001). Among adolescents active exercise was the most practiced football (42%) and weights (19%). The health education in schools can assist in combating the sedentarism of the adolescents.
Spectroscopy of Very Low Mass Stars and Brown Dwarfs in IC 2391: Lithium Depletion and Hα Emission

We have obtained intermediate-resolution optical spectroscopy of 44 candidate very low mass members of the nearby young open cluster IC 2391. Of these, 26 spectra are totally new, 14 had been analyzed in a previous paper, and another four are in common with that paper. These spectra, taken at the Cerro Tololo 4 m and Magellan I and II telescopes, allow us to confirm 33 of them as likely cluster members, based on their spectral types, the presence of Li, and Hα emission. Among these new cluster members is CTIO-160 (M7), the first IC 2391 candidate to satisfy all criteria for being a substellar member of the cluster, including detection of the Li 6708 Å doublet. With the enlarged membership, we are able to locate the lithium depletion boundary of the cluster more reliably than in the past. On the basis of comparison of several theoretical models, we derive an age of 50 ± 5 Myr for IC 2391. We also estimate new ages for the α Per and Pleiades clusters; our ages are 85 ± 10 and 130 ± 20 Myr, respectively. We derive an estimate of the initial mass function of IC 2391 that extends to below the substellar limit and compare it to those of other well-studied young open clusters. The index of the power-law mass function for IC 2391 is α = 0.96 ± 0.12, valid in the range 0.5-0.072 M☉.
Diffusive Shock Acceleration with Magnetic Amplification by Nonresonant Streaming Instability in Supernova Remnants

We investigate the diffusive shock acceleration in the presence of the nonresonant streaming instability introduced by Bell. The numerical MHD simulations of the magnetic field amplification combined with the analytical treatment of cosmic-ray acceleration permit us to calculate the maximum energy of particles accelerated by high-velocity supernova shocks. The estimates for the Cas A, Kepler, SN 1006, and Tycho historical supernova remnants are given. We also found that the amplified magnetic field is preferentially oriented perpendicular to the shock front downstream of the fast shock. This explains the origin of the radial magnetic fields observed in young supernova remnants.
Traditional male circumcision and the risk of HIV transmission in Chavuma District,North Western Province,Zambia

It has been found that circumcised men are less than half likely to be infected by HIV as uncircumcised men. However, there are also chances that HIV infection can be transmitted at traditional male circumcision due to sharing a bloodcontaminated surgical knife among initiates.This study aims to establish the aspects of traditional male circumcision and the risk of HIV transmission to boys. It also aims to establish the knowledge of male parents, traditional leaders and traditional circumcisers about HIV transmission at traditional male circumcision rites. Further, it seeks to determine whether HIV sensitization has led to safe practice at traditional male circumcision rites to prevent transmission of HIV infection and to identify factors influencing safety of traditional male circumcision against the HIV virus. The study used qualitative methods to collect data using interviews. Data was collected among the Luvale in Chavuma district in Northwestern Zambia. The data was analyzed manually.The study revealed that the majority of the respondents knew what HIV/AIDS was and the routes of transmission. Some respondents knew HIV could be transmitted at male circumcision. Others could not correlate HIV transmission through MTCT and transmission at circumcision. Some traditional circumcisers could not believe sharing a surgical knife between initiates at circumcision could transmit HIV because they wipe it with a cloth before re-using it. They actively used the traditional method of using one surgical knife on all the initiates pausing risk of HIV transmission among them. There were no trained health workers in most health centres in Chavuma district in North Western province to perform male circumcisions except for Chavuma Mission Hospital and Lukolwe rural health centre that had a classified daily employee (CDE) each. There was no active programme dealing with prevention of HIV transmission at male circumcision in the area.Some parents and traditional leadership were opposed to altering the rite because it would compromise their traditional heritage but appealed that the traditional male circumcisers be trained in safe circumcision in order to prevent HIV infection at such a rite.Among the Luvale, the mukanda serves as the training ground for life skills and it is also a channel for receiving ancestral blessings and power. Manhood to the Luvale men therefore entails enduring hardship in life and building up courage to face challenges in life. Circumcision sets apart a Luvale man from women and uncircumcised men. Circumcision through mukanda is the symbol that marks the end of childhood and sets the beginning of the masculine status. Therefore, attaining manhood through circumcision appears much more important than the possible risk of contracting HIV infection at traditional circumcision. The sharing of a surgical knife carries traditional significance. It creates a bond among the peers for the rest of their lives that they shared blood.
Detection of the integrated Sachs–Wolfe effect and corresponding dark energy constraints made with directional spherical wavelets

Using a directional spherical wavelet analysis we detect the integrated Sachs-Wolfe (ISW) effect, indicated by a positive correlation between the first-year Wilkinson Microwave Anisotropy Probe (WMAP) and NRAO VLA Sky Survey (NVSS) data. Detections are made using both a directional extension of the spherical Mexican hat wavelet and the spherical butterfly wavelet. We examine the possibility of foreground contamination and systematics in the WMAP data and conclude that these factors are not responsible for the signal that we detect. The wavelet analysis inherently enables us to localize on the sky those regions that contribute most strongly to the correlation. On removing these localized regions the correlation that we detect is reduced in significance, as expected, but it is not eliminated, suggesting that these regions are not the sole source of correlation between the data. This finding is consistent with predictions made using the ISW effect, where one would expect weak correlations over the entire sky. In a flat universe the detection of the ISW effect provides direct and independent evidence for dark energy. We use our detection to constrain dark energy parameters by deriving a theoretical prediction for the directional wavelet covariance statistic for a given cosmological model. Comparing these predictions with the data we place constraints on the equation-of-state parameter w and the vacuum energy density Ω Λ . We also consider the case of a pure cosmological constant, that is, w = - 1. For this case we rule out a zero cosmological constant at greater than the 99.9 per cent significance level. All parameter estimates that we obtain are consistent with the standard cosmological concordance model values. Although wavelets perform very well when attempting to detect the ISW effect since one may probe only the regions where the signal is present, once all information is incorporated when computing parameter estimates, the performance of the wavelet analysis is comparable to other methods, as expected for a linear approach.
Determining Information Literacy Competency of Faculty Members in Using Medical Information Resources

Introduction: Information literacy (IL) is a set of abilities requiring individuals to identify when information is needed and have the competency to retrieve, evaluate, and efficiently use the required information. The aim of this study was to recognize to what extent faculty members are able to use the variety of information resources. The study was done in Tabriz University of Medical Sciences (Iran) from October to December 2012.Methods: This study used the cross sectional method. The participants of this study were 80 faculty members who referred to the central university library within the first two weeks of October (beginning of school year) for information seeking. All of the participants in the study were selected. Data were gathered through distribution of a standard questionnaire of information literacy. Data were analyzed through SPSS/16 and one-way ANOVA Independent t-test was applied, too.Results: Information literacy competency was classified in three levels: low, moderate, and high. The majority of faculty members had moderate information literacy level and a minority of them had a high information literacy level.Conclusion: Information literacy competency of faculty members was moderate to low. Academia had higher level of retrieving information and evaluating than ethics and rights of information resource and abilities in knowledge. There was a statically significant relationship between ageand level of academia with information literacy level.
SPECTROSCOPIC DETERMINATION OF THE LUMINOSITY FUNCTION IN THE GALAXY CLUSTERS A2199 AND VIRGO

We report a new determination of the faint end of the galaxy luminosity function (LF) in the nearby clusters Abell 2199 and Virgo using data from the Sloan Digital Sky Survey (SDSS) and the Hectospec multifiber spectrograph on the MMT. The luminosity function of A2199 is consistent with a single Schechter function to Mr = −15.6 + 5 log h70 with a faint-end slope of α = −1.13 ± 0.07 (statistical). The LF in Virgo extends to Mr ≈ −13.5 ≈ M* + 8 and has a slope of α = −1.28 ± 0.06 (statistical). The red sequence of cluster members is prominent in both clusters, and almost no cluster galaxies are redder than this sequence. A large fraction of photometric red-sequence galaxies lies behind the cluster. We compare our results to previous estimates and find poor agreement with estimates based on statistical background subtraction but good agreement with estimates based on photometric membership classifications (e.g., colors, morphology, surface brightness). We conclude that spectroscopic data are critical for estimating the faint end of the LF in clusters. The faint-end slope we find is consistent with values found for field galaxies, weakening any argument for environmental evolution in the relative abundance of dwarf galaxies. However, dwarf galaxies in clusters are significantly redder than field galaxies of similar luminosity or mass, indicating that star-formation processes in dwarfs do depend on environment.
Knowledge, beliefs, and practices among adolescent females regarding lifestyle risk factors for osteoporosis

While adult women are aware of the relationship between lifestyle practices and the prevention of osteoporosis, this awareness and subsequent practice is not known in the adolescent population. The primary purpose of this study was to evaluate knowledge, beliefs, and practices regarding osteoporosis lifestyle risk factors among the adolescent female population. A second purpose was to determine whether knowledge, beliefs, and practices would vary according to socio-economic status (SES). A third purpose was to assess whether lifestyle practices would cluster together. Two hundred twenty seven females aged 1216 of high and low SES were randomly selected to participate in this study. Knowledge and beliefs toward osteoporosis lifestyle risk factorsphysical activity, cigarette smoking, and nutrition were evaluated using a reliable questionnaire developed for this study. To assess physical activity, smoking, and nutrition, other reliable and valid questionnaires were used. Results indicated that adolescent females believed that an inactive lifestyle and inadequate calcium intake would predispose them to osteoporosis, although they were unaware that cigarette smoking is a risk factor. The majority of participants were also unable to identify specific activities and foods best for building strong bones. In terms of practices, 61% of the participants had daily calcium intakes less than the recommended adequate intake, and physical activity scores that reflected low to moderate activity levels. Twenty-five percent of the young women were current smokers. These findings suggest that although adolescent females in this study held positive beliefs towards lifestyle practices that lead to osteoporosis, they lacked the specific knowledge necessary to make informed lifestyle decisions. In addition, the
Srinivasa Ramanujan and signal-processing problems

The Ramanujan sum cq(n) has been used by mathematicians to derive many important infinite series expansions for arithmetic-functions in number theory. Interestingly, this sum has many properties which are attractive from the point of view of digital signal processing. One of these is that cq(n) is periodic with period q, and another is that it is always integer-valued in spite of the presence of complex roots of unity in the definition. Engineers and physicists have in the past used the Ramanujan-sum to extract periodicity information from signals. In recent years, this idea has been developed further by introducing the concept of Ramanujan-subspaces. Based on this, Ramanujan dictionaries and filter banks have been developed, which are very useful to identify integer-valued periods in possibly complex-valued signals. This paper gives an overview of these developments from the view point of signal processing. This article is part of a discussion meeting issue ‘Srinivasa Ramanujan: in celebration of the centenary of his election as FRS’.