bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Type Ib supernova 2010O: an explosion in a Wolf—Rayet X-ray binary?
Authors: Nelemans Gijs , Voss Rasmus , Nielsen Mikkel T. B. , Roelofs Gijs 
Published: April 2010

Abstract
The Type Ib supernova 2010O was recently discovered in the interacting starburst galaxy Arp 299. We present an analysis of two archival Chandra X-ray observations of Arp 299 taken before the explosion and show that there is a transient X-ray source at a position consistent with the supernova. Due to the diffuse emission, the background is difficult to estimate. We estimate the flux of the transient from the difference of the two X-ray images and conclude that the transient can be described by a 0.225-keV blackbody with a luminosity of for a distance of 41 Mpc. These properties put the transient in between the Galactic black hole binary XTE J1550−564 and the ultraluminous X-ray binaries NGC 1313 X-1 and X-2. The high level of X-ray variability associated with the active starburst makes it impossible to rule out a chance alignment. If the source is associated with the supernova, it suggests SN 2010O is the explosion of the second star in a Wolf–Rayet X-ray binary, such as Cyg X-3, IC 10 X-1 and NGC 300 X-1.
UNDERWATER PROCESSING WITH AND WITHOUT ADDED CALCIUM INFLUENCES SHELF LIFE QUALITY OF FRESH‐CUT CANTALOUPE
Authors: LAMIKANRA O. , BETT‐GARBER K.L. , WATSON M.A. , INGRAM D.A. 
Published: April 2010

ABSTRACT The effect of processing cantaloupe melon while submerged underwater on the fresh‐cut fruit quality was determined. Total plate, coliform, yeast and mold counts were lower in underwater processed fruit after 1 day storage, but were not significantly different after 7 days. Dissolved calcium in the treatment water reduced microbial growth in cut fruit over the storage period of 14 days. Sensory evaluation indicated increased fruity/melon intensity and decreased rancid/painty intensity of underwater processed fruit. Peroxidase activity increased in underwater processed fruit and presence of calcium in treatment fluid elevated this effect. Underwater processed fruit respired less during storage at 10C. Results indicate an increased defense response as a result of underwater processing that is enhanced by the presence of calcium ions in the treatment fluid. PRACTICAL APPLICATIONThe increased demand for fresh‐cut fruit has lead to the need for longer shelf life quality. This research details a novel method of boosting the quality of fresh‐cut cantaloupe utilizing novel cutting methods and GRAS processing aids that disrupt the normal cycle of senescence in wounded fruit. These methods can be used by the small processor or adapted for large processors.
PHYSICO‐CHEMICAL ANALYSES, SENSORY EVALUATION AND POTENTIAL OF MINIMAL PROCESSING OF PEJIBAYE (BACTRIS GASIPAES) COMPARED TO MASCARENES PALMS
Authors: JOAS J. , LE BLANC M. , BEAUMONT C. , MICHELS T. 
Published: April 2010

ABSTRACT A palm species native of South America, pejibaye (Bactris gasipaes), was recently introduced in Reunion Island in an attempt to diversify its agriculture. Morphological analyses highlighted the agronomic advantages of pejibaye including a high weight‐to‐harvest‐date ratio compared to three mascarenes palm species. Sensory analyses by a trained panel allowed the elaboration of sensory profiles of the four palms tested. Ranking test done by 120 consumers revealed that pejibaye was preferred to the Mascarenes palms at the 5% level of significance and triangle test showed that Acanthophoenix rubra (red palm), the most cultivated species for the local market, was significantly different from pejibaje at the 1% level. Phenolic profiles revealed that pejibaye differed from the other species by a peak absorbing at 272 nm and weak polyphenol oxidase activities. As no browning reaction was observed in fresh cut pejibaye, this palm could be used for minimal processing (local and export market).PRACTICAL APPLICATIONSSensorial characteristics of fresh hearts of palm are different of those of canned heart of palm, and fresh heart palms are generally preferred by consumers. However, the marketing of fresh palm is limited by the high level of oxidation of most of palm species. The high stability of pejibaye after cutting and its slow rate of oxidation offer the possibility of minimal processing, without special additives. So the packaging in wrapped trays of this palm, cut and stored at low temperature opens up new perspectives, ensuring sensorial quality of a “fresh” product with a shelf life allowing a controlled management of market supply.
DESCRIPTIVE STUDY OF REFLECTANCE SPECTRA OF HAKE (MERLUCCIUS AUSTRALIS), SALMON (SALMO SALAR) AND LIGHT AND DARK MUSCLE FROM TUNA (THUNNUS THYNNUS)
Authors: SÁNCHEZ‐ZAPATA E. , PÉREZ‐ALVAREZ J.A. , FERNÁNDEZ‐LÓPEZ J. , BARBER‐VALLES J.X. 
Published: April 2010

ABSTRACT The reflectance spectra of foods constitutes a simple, non‐destructive physical method with potential applications in the industry. Color is the most valued properties for customers when buying fresh fish, so that its characterization is important for setting objective quality criteria that can be easily applied at all levels of the production and distribution chain. In this work the reflectance spectra and CIEL*a*b* coordinates of fresh muscle in hake, salmon and tuna (light and dark muscle) it was described. Hake, salmon and the dark tuna muscle show a zone of the spectrum (between 600 and 740 nm) with no significant (P > 0.05) differences between the reflectance percentages, which may be taken as characteristic of fresh fish muscle. The light tuna muscle shows a plateau between 700 and 740 nm, while the dark muscle presents a further two plateaus between 390 and 440 nm and between 470 and 510 nm.PRACTICAL APPLICATIONSThe study of the reflectance spectra of fish is a method with many potential applications in the food industry. Spectrum shape is characteristic of each fish. For this reason, a study of the reflectance spectra of the “fresh meat” of commercially interesting fish species could be of value as tool for characterizing fish and fish products. In each case it will be necessary to identify the characteristic wavelengths or spectral regions that provide the “digital footprint” of the species in question. Its characterization is important for setting objective quality criteria that can be easily applied at all levels of the production and distribution chain.
CHANGES IN FIRMNESS AND PECTIC POLYSACCHARIDE SOLUBILITY IN THREE CULTIVARS OF STRAWBERRY FRUIT FOLLOWING SHORT‐TERM EXPOSURE TO HIGH PCO2
Authors: MATSUMOTO KAZUHIRO , HWANG YONG SOO , LEE CHUNG HYUN , HUBER DONALD J. 
Published: April 2010

ABSTRACT Fruit of three genetically related strawberry (Fragaria × ananassa Duchesne) cultivars, “Akihime”, “Seolhyang”, and “Maehyang”, were exposed to 100 kPa CO2 for 4 h at 4C to determine the residual influence on firmness during storage at 4C. Fruit firmness increased significantly in all cultivars in response to high CO2, from 97% in “Maehyang” to 66% in “Akihime.” Firmness increases were evident 24 h following 100 kPa CO2 exposures and persisted over 3 days at 4C. Fruit exposed to high pCO2 showed significant quantitative shifts in soluble pectin fractions, with increases of 44.8–66.7% in chelator‐soluble pectins and declines of 14.6–22.1% in water‐soluble pectins and 8.4–21.0% in Na2CO3‐soluble pectins. Changes to matrix glycans were unremarkable except in “Maehyang”, which showed 10–13% declines in 4% alkali‐soluble glycans and 8.5–13% increases in 24% alkali‐soluble glycans. Mol mass of the water‐ and chelator‐soluble pectin fractions was minimally affected by high pCO2. The increases in firmness and changes in pectin solubility patterns in response to CO2 are among the highest reported for strawberry fruit.PRACTICAL APPLICATIONSThe strawberry is among the most perishable of harvested fruits, experiencing rapid softening and general deterioration even at temperatures near 0C. Since strawberries do not ripen postharvest, they must be harvested when nearly full‐ripe, and during storage and handling are subject to high water loss, bruising, and decay. Alternative means of handling harvested strawberry fruit are being investigated. Strawberry firmness can be enhanced by treatment with high levels of carbon dioxide; however, long exposures to the gas can result in discoloration and fermentative metabolism. In these experiments, we demonstrate that fruit from three Asian strawberry cultivars show significantly and persistently enhanced firmness in response to a 4‐h exposure to 100 kPa CO2. This response is accompanied by highly significant changes in solubility of specific pectin fractions. Short‐term, high CO2 treatments could have application for extending shelf‐life and facilitating long‐distance transport of appropriate cultivars of strawberry fruit.
Is there an association between neurocognitive performance and medication adherence in first episode psychosis?
Authors: Lepage Martin , Bodnar Michael , Joober Ridha , Malla Ashok 
Published: April 2010

AbstractAim: Medication adherence is a determining factor for symptomatic remission and relapse prevention following a first episode of psychosis (FEP). Neurocognitive abilities have received only scant attention so far as a risk factor for poor adherence but significant impairments with memory and/or planning abilities could play a role. We examined early medication adherence following admission to a specialized clinical programme for FEP.Method: One hundred sixty FEP participants and 35 healthy controls completed an exhaustive neurocognitive assessment. FEP participants were categorized as a function of their medication adherence at 6 months into poor (n = 34), partial (n = 27) and full (n = 99) adherence, respectively. Domain‐specific and global measures of cognitive ability were examined.Results: No measure of neurocognition could significantly discriminate amongst the three medication adherence groups.Conclusion: These results suggest no strong associations between neurocognitive abilities and medication adherence in first episode of psychosis.
Psychological well‐being among individuals with first‐episode psychosis
Authors: Uzenoff Sarah R. , Brewer Katherine C. , Perkins Diana O. , Johnson David P. , Mueser Kim T. , Penn David L. 
Published: April 2010

AbstractAim: Psychological well‐being is a subjective component of quality of life (QOL) that has been previously unexplored in individuals recovering from an initial psychotic episode. This study examined predictors of psychological well‐being among individuals with first‐episode psychosis (FEP) and compared it to a non‐clinical college‐aged comparison group.Methods: The Scales of Psychological Well‐Being (SPWB) Environmental Mastery and Purpose in Life subscales were administered to both clinical (n = 41) and control (n = 39) participants. Clinical participants were also assessed on symptom measures and QOL, and all participants completed a measure of perceived social support. Multiple regression analyses were carried out to determine predictors of well‐being in the FEP sample.Results: SPWB scores were significantly lower for the FEP group in comparison to the control group. Additionally, greater perceived social support and lower levels of depression were found to be significant predictors of psychological well‐being in the clinical sample, whereas gender and negative symptoms were not significant predictors.Conclusions: These results suggest that the development of a psychotic episode is associated with decreased subjective well‐being, and that depression and social support may play an important role in this aspect of an individual's recovery. Additionally, the SPWB appear to be tapping into an important construct that has been relatively unexamined in first‐episode research and may have potential utility in clinical practice and future treatment development.
Factors influencing career choices in radiology trainees in Queensland, Australia
Authors: Ip SW , Ko HS , Applegate KE 
Published: April 2010

SummaryThe aim of this study was to investigate factors influencing career choices in radiology trainees. We distributed a 27‐question written survey to all radiology registrars in Queensland. The questions investigated whether radiology was their first specialty choice, career satisfaction, ideal working conditions and attitudes regarding having children during the time of training. Forty‐four of 51 surveys were returned (86% participation rate, 73% men, P = 0.048055) with 100% reporting a high job satisfaction; 28% of male registrars compared to 8% of female registrars did extra work outside of training to earn extra money (P = 0.000003), and 17% of female registrars took a leave of absence during their training, while no male registrar did (P = 0.087923). Only one female trainee worked part‐time (P = 0.272727). In addition, 58% of female registrars planned a pregnancy (P = 0.731789) before completion of training; 83% of women versus 75% of men had no children (P = 0.329263). Only 5% of trainees agreed that it was easy to arrange part‐time training, only 14% stated that it was easy to negotiate flexible work schedules and 7% agreed that it was easy to return to work after a period of absence. ‘Time spent with immediate family’ was rated the most important lifestyle factor, followed by ‘work hours’ and ‘on‐call duty’. The least important factors were ‘being away from extended family’, ‘availability of part‐time work’ and whether ‘work was in a rural location’. Overall job satisfaction is high among radiology trainees. Nevertheless, lifestyle factors, particularly those related to work time, are becoming more important for career decisions. This should be taken into account when designing and structuring radiology training to ensure that it is considered an attractive career choice.
Internal‐external percutaneous transhepatic biliary drainage for malignant biliary obstruction: a retrospective analysis
Authors: Westwood DA , Fernando C , Connor SJ 
Published: April 2010

SummaryWhen percutaneous transhepatic biliary drainage (PTBD) is required for the management of malignant biliary obstruction, the local policy favours the use of internal–external drains. Regular planned drain exchanges are scheduled, and patients have open access back into the system to minimise complications. The aim of this study was to evaluate the success and complication rate of this method for the palliation of malignant biliary obstruction. The hospital records of 43 consecutive patients who underwent PTBD for malignant biliary obstruction at a single institution between 1 February 2004 and 31 January 2006 were reviewed. Outcomes were examined until January 2008. Biliary decompression was achieved in all 43 patients. The level of obstruction was defined as distal in 24 patients and perihilar in 19 patients. There was one procedure‐related death. There were 91 routine outpatient drain exchanges performed at a median interval of 45 (range 21–64) days. Overall, 24/43 patients encountered 80 discrete complications related to biliary drainage. Fifty‐two non‐scheduled drain exchanges (accounting for 65% of all complications) were performed on an outpatient basis. Fourteen patients were readmitted on a median of one (range 1–3) occasion for a median duration of 3 (range 1–12) days. Median survival was 71 (range 7–850) days. PTBD can be performed with low mortality, but long‐term morbidity remains high despite an aggressive approach to maintaining biliary patency. Providing patients with an open‐access service means the majority of complications can be dealt with on an outpatient basis.
Abdomen's forgotten organ: Sonography and CT of focal splenic lesions
Authors: Sutherland T , Temple F , Hennessy O , Lee W‐K 
Published: April 2010

SummaryFocal lesions within the spleen are being increasingly recognized as imaging technologies advance, and often provide a diagnostic challenge for radiologists. Knowledge of the types of pathologies that occur, determination of solid or cystic nature and a search for characteristic features including correlation with extrasplenic findings can usually allow a specific diagnosis or brief differential to be offered.
Tuberculous meningitis presenting as isolated interhemispheric exudates
Authors: Bharath RD , Sinha S , Vasudev MK , Ravishankar S , Chandrashekar N 
Published: April 2010

SummaryThe total number of tuberculosis cases in the world is increasing, and less common forms of tuberculous meningitis (TBM) with varying imaging manifestations are being encountered more often. We describe anterior interhemispheric variety of TBM, which has not been previously described to the best of our knowledge in the literature. Common imaging findings in these five patients include predominant involvement of the meninges in the anterior interhemispheric fissure with relatively little enhancement of the basal cisterns. Knowledge of uncommon radiological findings is vital in early diagnosis and treatment of this common disease.
The use of magnetic resonance imaging for image‐guided brachytherapy
Authors: Barkati M , Van Dyk S , Foroudi F , Narayan K 
Published: April 2010

SummaryProgress has been made in the delivery of brachytherapy, from low‐dose rate (LDR) to high‐dose rate (HDR) treatments, allowing for dose optimisation, conformal treatments, improved radiation protection, and improved accuracy and efficiency. Image‐guided brachytherapy, incorporating spatial and temporal changes, is now possible with advanced imaging and treatment technology. This report reviews the evidence for the benefits of image‐guided brachytherapy using magnetic resonance imaging (MRI), mainly for cervix and prostate cancer, but also possibilities for other tumour sites. It also emphasises the need for a dedicated MRI unit for brachytherapy.
Reduction of irradiated small bowel volume with Trendelenburg position in gynecologic pelvic radiotherapy
Authors: Dirier A , Adli M , Andic F , Cifci S , Ors Y , Kuzhan A 
Published: April 2010

SummaryThe aim of this study was to assess the effect of Trendelenburg position in comparison to prone position on small bowel volume and treatment dose in gynecologic pelvic external beam radiotherapy using three‐dimensional conformal treatment plans. Eight patients with gynecologic cancers, treated with definitive or postoperative pelvic radiotherapy were investigated. Pelvic computerized tomography (CT) scans for treatment planning were performed in prone and 25 degree Trendelenburg positions for each patient. The dose‐volume histograms of small bowel within the treatment fields were obtained and compared for both positions. The clinical target volume (CTV) and the planning target volume (PTV) were also defined and evaluated in the subjects. Treatment dose was 5040 cGy to PTV with 180 cGy daily fraction doses in both techniques for all patients. The average irradiated small bowel volume was 726 cc for prone position and 458 cc for the Trendelenburg position. The average irradiated small bowel volume reduction in the Trendelenburg position was 38.0% (95% CI 19.5 ± 38%) compared with the prone position. The average small bowel percent dose was 25.4% (1280 cGy) for Trendelenburg position and 39.9% (2010 cGy) for prone position. PTV doses were similar in both techniques. The results of this dosimetric study suggest that gynecologic pelvic radiotherapy in the Trendelenburg position decreases the volume of irradiated small bowel compared to prone position and may decrease treatment related small bowel morbidity. Clinical benefit of this position should be evaluated in further clinical studies.
The Primate Life History Database: a unique shared ecological data resource
Authors: Strier Karen B. , Altmann Jeanne , Brockman Diane K. , Bronikowski Anne M. , Cords Marina , Fedigan Linda M. , Lapp Hilmar , Liu Xianhua , Morris William F. , Pusey Anne E. , Stoinski Tara S. , Alberts Susan C. 
Published: April 2010

Summary1. The importance of data archiving, data sharing and public access to data has received considerable attention. Awareness is growing among scientists that collaborative databases can facilitate these activities.2. We provide a detailed description of the collaborative life history database developed by our Working Group at the National Evolutionary Synthesis Center to address questions about life history patterns and the evolution of mortality and demographic variability in wild primates.3. Examples from each of the seven primate species included in our database illustrate the range of data incorporated and the challenges, decision‐making processes, and criteria applied to standardize data across diverse field studies. In addition to the descriptive and structural metadata associated with our database, we also describe the process metadata (how the database was designed and delivered) and the technical specifications of the database.4. Our database provides a useful model for other researchers interested in developing similar types of databases for other organisms, while our process metadata may be helpful to other groups of researchers interested in developing databases for other types of collaborative analyses.
Schemes over 𝔽1and zeta functions
Authors: Connes Alain , Consani Caterina 
Published: April 2010

AbstractWe determine the real counting functionN(q) (q∈[1,∞)) for the hypothetical ‘curve’$C=\overline {\mathrm {Spec}\,\Z }$over 𝔽1, whose corresponding zeta function is the complete Riemann zeta function. We show that such a counting function exists as a distribution, is positive on (1,∞) and takes the value −∞atq=1 as expected from the infinite genus ofC. Then, we develop a theory of functorial 𝔽1-schemes which reconciles the previous attempts by Soulé and Deitmar. Our construction fits with the geometry of monoids of Kato, is no longer limited to toric varieties and it covers the case of schemes associated with Chevalley groups. Finally we show, using the monoid of adèle classes over an arbitrary global field, how to apply our functorial theory of$\Mo $-schemes to interpret conceptually the spectral realization of zeros ofL-functions.
Analytical Chatter Stability of Milling With Rotating Cutter Dynamics at Process Damping Speeds
Authors: Eynian M. , Altintas Y. 
Published: April 2010

Abstract
This paper presents a chatter stability prediction method for milling flexible workpiece with end mills having asymmetric structural dynamics. The dynamic chip thickness regenerated by the vibrations of the rotating cutter and the fixed workpiece is transformed into the principle modal directions of the rotating tool. The process damping is modeled as a linear function of vibration velocity. The dynamics of the milling system is modeled by a time delay matrix differential equation with time varying directional factors and speed dependent elements. The periodic directional factors are averaged over a spindle period, and the stability of the resulting time invariant but speed dependent characteristic equation of the system is investigated using the Nyquist stability criterion. The stability model is verified with time domain numerical simulations and milling experiments.