bluuebunny/crossref_metadata_2025_split huggingface dataset:
Binary Systems Within Star Clusters
Authors: Paunzen Ernst , Stütz Christian , Baumann Bernhard 
Published: April 2012

AbstractWEBDA (http://www.univie.ac.at/webda) is a site devoted to observational data of stellar clusters in the Milky Way and the Small Magellanic Cloud. It is intended to provide a reliable presentation of the available data and knowledge about these objects. The success of WEBDA is documented by its worldwide usage and the related acknowledgements in the literature: more than 650 refereed publications within the last twelve years acknowledged its use. It collects all published data for stars in open clusters that may be useful either to determine membership, or to study the stellar content and properties of the clusters.The database content includes astrometric data in the form of coordinates, rectangular positions, and proper motions, photometric data in the major systems in which star clusters have been observed, but also spectroscopic data like spectral classification, radial velocities, and rotational velocities. It also contains miscellaneous types of supplementary data like membership probabilities, orbital elements of spectroscopic binaries, and periods for different kinds of variable stars as well as an extensive bibliography. Several powerful tools help to plot, query and extract the data, which can be directly retrieved via http. At the time of writing, about four million individual measurements have been included in the database. The Star Clusters Young & Old Newsletter (SCYON), a bi-monthly newsletter devoted to star cluster research with about 600 subscribers, is hosted in parallel with the database.We present the current and upcoming new interface and tools, which are needed to visualize and analyze the increasing amount of data from all-sky surveys, and deeper investigations of binary systems, low mass dwarfs, as well as planet-hosting stars.
The Origin and Evolution of the Black Hole Binary XTE J1118+480
Authors: González Hernández Jonay I. , Rebolo Rafael , Casares Jorge 
Published: April 2012

AbstractBlack hole X-ray binaries with large mass ratios and short orbital periods are expected to change their orbital period due to magnetic breaking, mass loss, gravitational radiation, or mass evaporation of the black hole in alternative descriptions of gravity, like in braneworld gravity scenarios.The black hole X-ray binary XTE J1118+480, consisting of a late-type secondary star orbiting a ~ 8 M⊙ black hole in a 4.1-hr period, offers a unique opportunity to test these models. New spectroscopic data allow us to determine the time of the inferior conjunction of the secondary star at different epochs. Observations over a 10 year span will provide constraints on the rate of any orbital period change.We present here a preliminary radial velocity curve obtained with the 10.4m GTC telescope equipped with OSIRIS medium-resolution spectrograph, as part of an ongoing long-term program to study the orbital period evolution in this binary.
An Unusual Low State of the Polar AR UMa
Authors: Kjurkchieva Diana P. , Marchev Dragomir V. 
Published: April 2012

AbstractOur photometric CCD observations of the short-period cataclysmic star AR UMa in 2008 during its low state revealed light variability with a bigger period (by around 10%) and considerably smaller amplitudes than the previous ones. The light curve had a single-wave shape, opposite to the previously observed low states which revealed doubled-humped shape.
Exoplanet Upper Atmosphere Environment Characterization
Authors: Lammer Helmut , Kislyakova Kristina G. , Odert Petra , Leitzinger Martin , Khodachenko Maxim L. , Holmström Mats , Hanslmeier Arnold 
Published: April 2012

AbstractThe intense stellar SXR and EUV radiation exposure at “Hot Jupiters” causes profound responses to their upper atmosphere structures. Thermospheric temperatures can reach several thousands of Kelvins, which result in dissociation of H2 to H and ionization of H to H+. Depending on the density and orbit location of the exoplanet, as a result of these high temperatures the thermosphere expands dynamically up to the Roche lobe, so that geometric blow-off with large mass loss rates and intense interaction with the stellar wind plasma can occur. UV transit observations together with advanced numerical models can be used to gain knowledge on stellar plasma and the planet's magnetic properties, as well as the upper atmosphere.
3D Models of Exoplanet Atmospheres
Authors: Dobbs-Dixon Ian 
Published: April 2012

AbstractDynamical models of strongly irradiated gas-giant atmospheres exhibit a range of behavior, the nature of which depends on both the adopted parameters and the adopted numerical model. Discerning the correct choice of physical parameters and modeling philosophy can be difficult. Here, I present a series of wavelength-dependent transmission spectra for the giant planet HD209458b based on 3D radiative hydrodynamical models for a range of kinematic viscosities. While flow patterns and temperature distributions can vary significantly, disk-averaged phase curves mask much of this information. Transmission spectra, on the other hand, probe the day-night transition where advective contributions dominate and differences are often most pronounced. Transmission spectra illustrate noticeable changes, especially when comparing the differences between transmission spectra of eastern and western hemispheres, as might be seen during ingress and egress.
Gas Dynamic Simulation of the Star-Planet Interaction using a Binary Star Model
Authors: Ionov D. E. , Bisikalo D. V. , Kaygorodov P. V. , Shematovich V. I. 
Published: April 2012

AbstractWe have performed numerical simulations of the interaction between a “hot Jupiter” planet and gas of the stellar wind using a numerical code developed for investigations of binary stars. With this code, we have modeled the structure of the gaseous flow in the system HD 209458. The results have been used to explain observations of this system performed with the COS instrument on-board the HST.
Panel Discussion IV
Authors: Allard F. , Batten A. , Budding E. , Devinney E. , Eggleton P. , Hatzes A. , Hubeny I. , Kley W. , Lammer H. , Linnell A. , Trimble V. , Wilson R. E. 
Published: April 2012

I. Hubeny Welcome to the last panel meeting. We invite general comments either from the audience or from the panelists.V. Trimble Well, Mercedes started us with a vocabulary item and I think I would like to end with a vocabulary item. When they were first discovered, we called them ‘extra solar system planets’ which was descriptive and fine, but it's just rather cumbersome. At some point they became ‘extra solar planets.’ Now I have never seen a planet inside the Sun. And therefore ‘extrasolar’ is not a good descriptor. ‘Exoplanets’ is OK, but now that there are so many of them that perhaps they are simply ‘the planets.’ When you want to specialize to ours, you could say ‘solar system planets.’ Think how much ink it would save.
Transboundary and Global Environmental Issues: The Role of asean
Authors: Kheng-Lian Koh 
Published: April 2012

AbstractThis contribution focuses on the challenges that regional organizations face as they are increasingly confronted with, and need to respond to, transboundary and global environmental problems. Ever more frequently, environmental issues that begin as matters of national concern rapidly become transboundary in scope. As exemplified by the outbreak of avian flu, integrated national, regional and international efforts are necessary to tackle transboundary environmental issues which, by their very definition, call for a coordinated effort. This article will concentrate on the impact of transboundary environmental challenges on the objectives and functions of the Association of South East Asian Nations (asean).
Retention and Physiological Effects of Surgically Implanted Telemetry Transmitters in Blue Catfish
Authors: Holbrook S. Chad , Byars William D. , Lamprecht Scott D. , Leitner Jean K. 
Published: April 2012

Abstract
The study of movement in catfish via telemetry can be problematic because of transmitter expulsion. Information regarding transmitter retention in blue catfish Ictalurus furcatus is limited. We examined transmitter retention and physical condition after implantation in adult blue catfish (≥600 mm) for two surgical implantation methods. Fifteen fish were implanted with Vemco V16 transmitters that were left free floating in the abdominal cavity (traditional method). Another fifteen fish were implanted with capsules constructed to duplicate externally mounted Vemco V16 transmitters. These capsules were implanted in the abdominal cavity and then anchored to the pectoral girdle using sterile pseudo-monofilament suture (modified method). Fish were held in a flow-through circular tank for 244 d following surgery. Sixteen fish expelled their capsules, 10 from the traditional procedure and 6 from the modified procedure. Expulsions were observed between 23 and 243 d post surgery. The condition of fish with retained transmitters after 244 d, as measured by relative weight, was significantly higher for fish in the traditional treatment group. Gross necropsy revealed that retained traditionally implanted transmitters were free floating in the abdominal cavity with no visible interaction with internal organ structures. In the modified surgery group, retained transmitters remained tethered to the pectoral girdle but were located in various positions within the abdominal cavity, including encased in the intestine or stomach, and pushed through the body wall. Our study demonstrated unacceptable health effects associated with the modified procedure. We do not recommend it as a transmitter attachment method for telemetry studies of catfish movement. Further study is suggested to better determine the rates of retention associated with the traditional procedure that was tested.
Received August 2, 2011; accepted January 4, 2012
Gear-Type Influences on Fish Catch and a Wetland Fish Index in Georgian Bay Wetlands
Authors: Cvetkovic Maja , Kostuk Kristina , Chow-Fraser Patricia 
Published: April 2012

Abstract
The Laurentian Great Lakes are managed by many jurisdictions that use a variety of survey methods and gear types to monitor fish assemblages in coastal marshes. Lack of standardization in these methods makes it difficult for organizations to compare data because of inherent biases in gear types. Of equal concern is the uncertainty of the effect of gear bias on fish-related index scores for ecosystem health. Our first objective was to investigate whether there were differences in catch data between two commonly used sampling gears: fyke nets (FN) and boat electrofishing (EF). Secondly, we investigated whether catch differences in data associated with gear biases can lead to significant differences when these data are used to generate scores for biotic indices such as the published Wetland Fish Index (WFI). We sampled 26 coastal wetlands in Georgian Bay (Lake Huron) in the summers of 2004 and 2005. A majority (73%) of the more than 10,000 fish were caught by FN; this gear also captured a greater number of species and functional taxa and selected for larger piscivores. By comparison, EF captured larger invertivores. Fyke nets were more selective for individuals from the Centrarchidae, Cyprinidae, and Ictaluridae families, while EF was more effective for darters (e.g., the Iowa darter Etheostoma exile and johnny darter E. nigrum) and white suckers Catostomus commersonii. Despite these biases in catch data, we obtained statistically similar WFI scores with both gear types. Therefore, although the fish abundance and species composition information collected from FN and EF are not directly comparable, when necessary they can be used interchangeably to generate a fish-based index of ecosystem health.
Received May 16, 2011; accepted December 8, 2011
Trolling May Intensify Exploitation in Crappie Fisheries
Authors: Meals K. O. , Dunn A. W. , Miranda L. E. 
Published: April 2012

Abstract
In some parts of the USA, anglers targeting crappies Pomoxis spp. are transitioning from mostly stationary angling with a single pole around submerged structures to using multiple poles while drifting with the wind or under power. This shift in fishing methods could result in a change in catch efficiency, possibly increasing exploitation rates to levels that would be of concern to managers. We studied the catch statistics of anglers fishing while trolling with multiple poles (trollers) and those fishing with single poles (polers) in Mississippi reservoirs. Specifically, we tested whether (1) various catch statistics differed between trollers and polers, (2) catch rates of trollers were related to the number of poles fished, and (3) trollers could raise exploitation rates to potentially unsustainable levels. Results showed that participation in the crappie fisheries was about equally split between polers and trollers. In spring, 90% of crappie anglers were polers; in summer, 85% of crappie anglers were trollers. The size of harvested crappies was similar for the two angler groups, but the catch per hour was almost three times higher for trollers than for polers. Catch rates by trollers were directly correlated to the number of poles fished, although the relationship flattened as the number of poles increased. The average harvest rate for one troller fishing with three poles was similar to the harvest rate obtained by one poler. Simulations predicted that at the existing mix of about 50% polers and 50% trollers and with no restrictions on the number of poles used by trollers, exploitation of crappies is about 1.3 times higher than that in a polers-only fishery; under a scenario in which 100% of crappie anglers were trollers, exploitation was forecasted to increase to about 1.7 times the polers-only rate. The efficiency of trolling for crappies should be of concern to fishery managers because crappie fisheries are mostly consumptive and may increase exploitation rates to unsustainable levels.
Received August 24, 2011; accepted January 11, 2012
Aerobic exercise does not change C‐reactive protein levels in non‐obese patients with obstructive sleep apnoea
Authors: Cavagnolli Daniel A , Esteves Andrea Maculano , Ackel‐D'Elia Carolina , Maeda Marilia Y , de Faria Alexandre Paulino , Tufik Sérgio , de Mello Marco Tulio 
Published: April 2012

AbstractThe aim of this study is to evaluate the effects of a 2‐month aerobic exercise training programme on C‐reactive protein (CRP) levels in non‐obese patients with obstructive sleep apnoea. Twenty non‐obese and sedentary adult male volunteers underwent polysomnography (PSG) to assess their sleep parameters. After the PSG analysis, the subjects were divided into two groups (CTRL, control and OSA, obstructive sleep apnoea). Twenty‐four sessions of aerobic exercise were performed, and PSG was repeated on the night that followed the last physical training session (24th). Blood samples were collected for CRP analysis before the first exercise session and after the last session. The OSA group demonstrated a reduction in sleep latency (SL) after 2 months of physical exercise, and 80% of them showed a lower apnoea‐hypopnoea index (AHI), although this difference was not statistically significant. The differences between the CRP values for the CTRL and OSA groups were also not statistically significant at baseline or after 2 months of physical exercise. Furthermore, there was no correlation between the CRP levels and body mass index (BMI) in the two groups assessed. Our results suggest that in non‐obese patients with OSA, CRP levels were normal and did not change after 2 months of aerobic exercise training.
From early to adult sport success: Analysing athletes' progression in national squads
Authors: Barreiros André , Côté Jean , Fonseca António Manuel 
Published: April 2012

AbstractAlthough some prospective studies have shown that many successful young athletes do not maintain the same level of success when they reach adulthood, there is still a lack of information regarding athletes who started their international involvement at early ages. Therefore, the purpose of the present study was to investigate the international pathway of male and female athletes in different sports from the moment of their competitive debut, in order to determine how many international athletes at early ages competed or did not compete internationally as juniors and/or seniors. The sample included 395 athletes (soccer, volleyball, swimming and judo), born between 1974 and 1981, who could have competed in their national squads between 1988 and 2008. Results showed that only a third of international pre‐junior athletes reappeared as senior athletes, confirming the difficulties of predicting late success based on early identification and selection.
Variations in relative age effects in individual sports: Skiing, figure skating and gymnastics
Authors: Baker Joseph , Janning Christina , Wong Harmonie , Cobley Stephen , Schorer Jörg 
Published: April 2012

AbstractIn many sports, policy‐makers and administrators employ annual cohorts to reduce differences between athletes during childhood and youth. Although well‐intended, unintended relative age effects (RAEs) usually occur. RAEs refer to the specific selection, participation and attainment disadvantages associated with participants’ birthdates relative to an arbitrary ‘cutoff’ date used to group participants within annual age groups. To date, we have little understanding of RAEs in individual sports. In this article, Study 1 considered the presence of RAEs in 1474 ski jumping, 7501 cross‐country skiing, 15,565 alpine skiing, 4179 snowboarders and 713 Nordic combined athletes. Chi‐square analyses revealed significant RAEs for most of these contexts across sexes. In Study 2, RAEs in the aesthetic sports of figure skating (n=502) and female gymnastics (n=612) were considered. There was no effect for the figure skaters and an atypical effect for the gymnasts. The significant effects across most ski sports coupled with the null effects in figure skating and atypical effect in gymnastics suggest that sport‐specific contextual factors are important elements in understanding the mechanisms of RAEs, although further work is necessary to validate these findings.
Autoimmune gastritis: histology phenotype and OLGA staging
Authors: Rugge M. , Fassan M. , Pizzi M. , Zorzetto V. , Maddalo G. , Realdon S. , De Bernard M. , Betterle C. , Cappellesso R. , Pennelli G. , de Boni M. , Farinati F. 
Published: April 2012

SummaryBackgroundAmong Western populations, the declining incidence of Helicobacter pylori infection coincides with a growing clinical impact of autoimmune gastritis.AimsTo describe the histological phenotype of autoimmune gastritis, also to test the prognostic impact of OLGA staging in the autoimmune setting.MethodsA single‐institutional series (spanning the years 2003–2011) of 562 consecutive patients (M:F ratio: 1:3.7; mean age = 57.6 ± 14.4 years) with serologically confirmed autoimmune gastritis underwent histology review and OLGA staging.ResultsHelicobacter pylori infection was ascertained histologically in 44/562 cases (7.8%). Forty six biopsy sets (8.2%) featured OLGA stages III–IV; they included all four cases of incidental epithelial neoplasia (three intraepithelial and one invasive; three of these four cases had concomitant H. pylori infection). There were 230 (40.9%) and 139 (24.7%) cases, respectively, of linear and micro‐nodular enterochromaffin‐like cell hyperplasia; 19 (3.4%) type I carcinoids were detected. The series included 116 patients who underwent repeated endoscopy/biopsy sampling (mean time elapsing between the two procedures = 54 months; range 24–108). Paired histology showed a significant (P = 0.009) trend towards a stage progression [the stage increased in 25/116 cases (22%); it remained unchanged in 87/116 cases (75%)].ConclusionsIn autoimmune gastritis, the cancer risk is restricted to high‐risk gastritis stages (III–IV), and is associated mainly with concomitant H. pylori infection. OLGA staging consistently depicts the time‐dependent organic progression of the autoimmune disease and provides key information for secondary gastric cancer prevention strategies.
Closed and open breathing circuit function in healthy volunteers during exercise at Mount Everest base camp (5300 m)
Authors: McMorrow R. C. N. , Windsor J. S. , Hart N. D. , Richards P. , Rodway G. W. , Ahuja V. Y. , O’Dwyer M. J. , Mythen M. G. , Grocott M. P. W. ,   the Caudwell Xtreme Everest Research Group
Published: April 2012

SummaryWe present a randomised, controlled, crossover trial of the Caudwell Xtreme Everest (CXE) closed circuit breathing system vs an open circuit and ambient air control in six healthy, hypoxic volunteers at rest and exercise at Everest Base Camp, at 5300 m. Compared with control, arterial oxygen saturations were improved at rest with both circuits. There was no difference in the magnitude of this improvement as both circuits restored median (IQR [range]) saturation from 75%, (69.5–78.9 [68–80]%) to > 99.8% (p = 0.028). During exercise, the CXE closed circuit improved median (IQR [range]) saturation from a baseline of 70.8% (63.8–74.5 [57–76]%) to 98.8% (96.5–100 [95–100]%) vs the open circuit improvement to 87.5%, (84.1–88.6 [82–89]%; p = 0.028). These data demonstrate the inverse relationship between supply and demand with open circuits and suggest that ambulatory closed circuits may offer twin advantages of supplying higher inspired oxygen concentrations and/or economy of gas use for exercising hypoxic adults.
The impacts of accessible service delivery on front‐line helping relationships in child welfare
Authors: Cameron Gary , DeGeer Ian , Hazineh Lirondel , Frensch Karen , Smit Quosai Trudy , Freymond Nancy 
Published: April 2012

ABSTRACTThis paper presents the results of a study comparing the impacts on helping relationships of locating front‐line child protection service providers in central locations or in accessible school and neighbourhood service delivery sites. Creating easier access to front‐line child protection service providers, fostering more positive community perceptions of child welfare services, improving client and service provider satisfaction with helping relationships and services, and increasing families' willingness to ask for help were core objectives at the accessible sites. Using a quasi‐experimental outcome design, file reviews and qualitative interviews with service providers and parents, this study presents evidence that accessible sites had substantial success in achieving these objectives when compared with central service delivery locations.
Parenting style, competence, social network and attachment in mothers with mental illness
Authors: Gelkopf Marc , Jabotaro Suzy Ella 
Published: April 2012

ABSTRACTSevere mental illnesses (SMIs) can affect parents' ability to provide an adequate environment for their children. Little has been written about the different factors that affect these abilities in individuals with SMI. In this study, we explored a number of relationships that have been found in the literature to be related to parenting styles. Our main hypotheses were that the participants' secure attachment with their parents is positively correlated with high levels of social support; social support is positively correlated with the experience of having good parental competency; lack of parental competency is negatively correlated with problematic parenting styles. This correlational and cross‐sectional study was conducted with 60 mothers with SMI. Results suggest a strong relationship between parental style, sense of parental competency, social support and attachment style of the parent. Negative parental styles were found to be negatively correlated with parental competence. Overactive and hostile parenting styles were found to be correlated with the interviewees' parental overprotecting attachment style. Positive correlations were found between parental competence and high social support. The results of the study may help in developing future multidimensional interventions for parents with SMI, to improve their parenting skills and reduce any negative influence on their offspring.