bluuebunny/crossref_metadata_2025_split huggingface dataset:
It's not what you hear, it's the way you think about it: appraisals as determinants of affect and behaviour in voice hearers
Authors: Peters E. R. , Williams S. L. , Cooke M. A. , Kuipers E. 
Published: November 2011

BackgroundPrevious studies have suggested that beliefs about voices mediate the relationship between actual voice experience and behavioural and affective response.MethodWe investigated beliefs about voice power (omnipotence), voice intent (malevolence/benevolence) and emotional and behavioural response (resistance/engagement) using the Beliefs About Voices Questionnaire – Revised (BAVQ-R) in 46 voice hearers. Distress was assessed using a wide range of measures: voice-related distress, depression, anxiety, self-esteem and suicidal ideation. Voice topography was assessed using measures of voice severity, frequency and intensity. We predicted that beliefs about voices would show a stronger association with distress than voice topography.ResultsOmnipotence had the strongest associations with all measures of distress included in the study whereas malevolence was related to resistance, and benevolence to engagement. As predicted, voice severity, frequency and intensity were not related to distress once beliefs were accounted for.ConclusionsThese results concur with previous findings that beliefs about voice power are key determinants of distress in voice hearers, and should be targeted specifically in psychological interventions.
AMPHORAE OF DRESSEL 24SIMILISTYPE IN THE CENTRAL AEGEAN AREA (CHIOS–ERYTHRAI–KYME)
Authors: Opaiţ Andrei , Tsaravopoulos Aris 
Published: November 2011

In memoriamVivien SwanAn exhaustive presentation of one of the most important Chian amphora workshops that manufactured amphorae of Dressel 24similistype, as well as ampullae, unguentaria, basins and funnels (vessels and equipment related to the olive oil industry), is followed by an analysis of the origin and evolution of this type since the Hellenistic period in the Chios–Erythrai–Kyme area. These discoveries bring to light the organisation of the amphorae workshops in this region, the same type of kiln being in use until the present day. Petrological and chemical analysis of the Chian and Erythraian fabrics, together with the identification of some Chian Dressel 24similisamphora stamps on the lower Danube and Pontic market, also sheds new light on the flourishing olive oil industry of the central Aegean area during the Early Roman period.
Mythos and logos
Authors: Fowler Robert L. 
Published: November 2011

AbstractWhile the simplistic thesis of Greek progress from mythos to logos in the form stated by Wilhelm Nestle is rightly rejected, some aspects of the emerging new consensus are open to challenge. ‘Mythos’ corresponds in important ways to modern ‘myth’ and Greek logos, with which it is contrasted, stands at the beginning of an unbroken tradition of Western rationalism. The semantic history of the terms is freshly analyzed, with particular attention to the contribution of pre-Socratic philosophers, Herodotos and Sophists, but looking forward also to Hellenistic and Imperial writers. The ‘invention of mythology’ is dated to the middle of the fifth century, not the end. Plato's complicated stand on the issue is interpreted as a reaction to Sophistic views.
Once more the end of Sophocles' Oedipus Tyrannus
Authors: Sommerstein Alan H. 
Published: November 2011

AbstractThis article challenges the conclusion of Kovacs (2009) that Oedipus Tyrannus 1468–1523 is an interpolation, arguing that the evidence he brings is insufficient (except possibly in regard to 1500–02), that his proposal regarding Sophocles' original conclusion to the play is unsatisfactory and that in 1468–1523 several significant features of the play's opening scenes are repeated or reversed.
A unifying framework for iterative approximate best-response algorithms for distributed constraint optimization problems
Authors: Chapman Archie C. , Rogers Alex , Jennings Nicholas R. , Leslie David S. 
Published: November 2011

AbstractDistributed constraint optimization problems (DCOPs) are important in many areas of computer science and optimization. In a DCOP, each variable is controlled by one of many autonomous agents, who together have the joint goal of maximizing a global objective function. A wide variety of techniques have been explored to solve such problems, and here we focus on one of the main families, namely iterative approximate best-response algorithms used as local search algorithms for DCOPs. We define these algorithms as those in which, at each iteration, agents communicate only the states of the variables under their control to their neighbours on the constraint graph, and that reason about their next state based on the messages received from their neighbours. These algorithms include the distributed stochastic algorithm and stochastic coordination algorithms, the maximum-gain messaging algorithms, the families of fictitious play and adaptive play algorithms, and algorithms that use regret-based heuristics. This family of algorithms is commonly employed in real-world systems, as they can be used in domains where communication is difficult or costly, where it is appropriate to trade timeliness off against optimality, or where hardware limitations render complete or more computationally intensive algorithms unusable. However, until now, no overarching framework has existed for analyzing this broad family of algorithms, resulting in similar and overlapping work being published independently in several different literatures. The main contribution of this paper, then, is the development of a unified analytical framework for studying such algorithms. This framework is built on our insight that when formulated as non-cooperative games, DCOPs form a subset of the class of potential games. This result allows us to prove convergence properties of iterative approximate best-response algorithms developed in the computer science literature using game-theoretic methods (which also shows that such algorithms can also be applied to the more general problem of finding Nash equilibria in potential games), and, conversely, also allows us to show that many game-theoretic algorithms can be used to solve DCOPs. By so doing, our framework can assist system designers by making the pros and cons of, and the synergies between, the various iterative approximate best-response DCOP algorithm components clear.
Survey of directly mapping SQL databases to the Semantic Web
Authors: Sequeda Juan F. , Tirmizi Syed Hamid , Corcho Oscar , Miranker Daniel P. 
Published: November 2011

AbstractThe Semantic Web anticipates integrated access to a large number of information sources on the Internet represented as Resource Description Framework (RDF). Given the large number of websites that are backed by SQL databases, methods that automate the translation of those databases to RDF are crucial. One approach, taken by a number of researchers, is to directly map the SQL schema to an equivalent Web Ontology Language (OWL) or RDF Schema representation, which in turn, implies an RDF representation for the relational data. This paper reviews this research, and derives a consolidated, overarching set of translation rules expressible as a stratified Datalog program. We present all the possible key combinations in an SQL schema and consider their implied semantic properties. We review the approaches and characterize them with respect to the scope of their coverage of SQL constructs.
Using Constraints for Shoe Mounted Indoor Pedestrian Navigation
Authors: Abdulrahim Khairi , Hide Chris , Moore Terry , Hill Chris 
Published: November 2011

Shoe mounted Inertial Measurement Units (IMU) are often used for indoor pedestrian navigation systems. The presence of a zero velocity condition during the stance phase enables Zero Velocity Updates (ZUPT) to be applied regularly every time the user takes a step. Most of the velocity and attitude errors can be estimated using ZUPTs. However, good heading estimation for such a system remains a challenge. This is due to the poor observability of heading error for a low cost Micro-Electro-Mechanical (MEMS) IMU, even with the use of ZUPTs in a Kalman filter. In this paper, the same approach is adopted where a MEMS IMU is mounted on a shoe, but with additional constraints applied. The three constraints proposed herein are used to generate measurement updates for a Kalman filter, known as ‘Heading Update’, ‘Zero Integrated Heading Rate Update’ and ‘Height Update’.The first constraint involves restricting heading drift in a typical building where the user is walking. Due to the fact that typical buildings are rectangular in shape, an assumption is made that most walking in this environment is constrained to only follow one of the four main headings of the building. A second constraint is further used to restrict heading drift during a non-walking situation. This is carried out because the first constraint cannot be applied when the user is stationary. Finally, the third constraint is applied to limit the error growth in height. An assumption is made that the height changes in indoor buildings are only caused when the user walks up and down a staircase. Several trials were shown to demonstrate the effectiveness of integrating these constraints for indoor pedestrian navigation. The results show that an average return position error of 4·62 meters is obtained for an average distance of 1557 meters using only a low cost MEMS IMU.
Tuberculosis and HIV co-infection in healthcare workers in England and Wales, 1999–2005
Authors: CROFTS J. P. , KRUIJSHAAR M. E. , DELPECH V. , NCUBE F. , ABUBAKAR I. 
Published: November 2011

SUMMARYThis study used linked national tuberculosis (TB) and HIV surveillance data to investigate recent trends and factors associated with HIV co-infection (TB-HIV) in healthcare workers (HCWs) with TB in England and Wales. Methods applied were the χ2trend test and logistic regression. Overall 14% (231/1627) of HCWs with TB were co-infected with HIV, increasing from 8% in 1999 to 14% in 2005 (P<0·001). Most (78%) HCWs were non-UK born and 74% of these developed TB ⩾2 years post-entry. Being born in Sub-Saharan Africa was an independent predictor for TB-HIV, especially for female HCWs (odds ratio 66·5, 95% confidence interval 16·3–271·1), who also had a lower median CD4 count than other co-infected women (106/mm3, interquartile range 40–200,P<0·01). Voluntary HIV testing of new HCWs should be encouraged as an opportunity for early diagnosis. Post-entry, a high index of clinical suspicion for TB in those most at risk remains important.
Colour Me In – an empirical study on consumer responses to the traffic light signposting system in nutrition labelling
Authors: Hieke Sophie , Wilczynski Petra 
Published: November 2011

AbstractObjectiveAs a means of empowering consumers, nutrition labelling has become a widely discussed topic. Simplicity and uniformity of labelling systems are regarded as the prevailing demands from the consumer side. In the present study, we analyse the effects of the traffic light signposting scheme on consumers’ food choices.DesignIn an online survey, respondents first rated the understandability of the traffic light signposting scheme. In a following conjoint experiment, they indicated which products they would select as the healthiest of the presented products, based on the nutritive information provided by the traffic light signposting scheme.SettingA major German university.SubjectsIn total 2002 undergraduate students participated in the survey. Two-thirds (69 %) of the respondents were female and the majority of the respondents (70 %) were between 18 and 24 years old. Seventy-seven per cent of the participants indicated that they had a higher level of education.ResultsOverall, the participants rated the understandability of the traffic light nutrition signposting scheme fairly high (5·9 out of 7). Sugar and fat were found to be the most important attributes of the scheme. Participants placed greater emphases on a change in a product's nutrient characteristic from ‘amber to ‘red’ compared with a change from ‘green’ to ‘amber’.ConclusionsOur results confirm the signalling effect of colour coding as it helps reduce the complexity of decision making. Our findings shed new light on the ongoing discussion concerning appropriate and efficient nutrition labelling and provide interesting insights for further research as well as implications for public policy making.
A fast doubly hybrid density functional method close to chemical accuracy using a local opposite spin ansatz
Authors: Zhang Igor Ying , Xu Xin , Jung Yousung , Goddard William A. 
Published: November 2011

We develop and validate the XYGJ-OS functional, based on the adiabatic connection formalism and Görling-Levy perturbation theory to second order and using the opposite-spin (OS) ansatz combined with locality of electron correlation. XYGJ-OS with local implementation scales as N
3
with an overall accuracy of 1.28 kcal/mol for thermochemistry, bond dissociation energies, reaction barrier heights, and nonbonded interactions, comparable to that of 1.06 kcal/mol for the accurate coupled-cluster based G3 method (scales as N
7
) and much better than many popular density functional theory methods: B3LYP (4.98), PBE0 (4.36), and PBE (12.10).
Molecular engineering of carbazole functionalized ruthenium dyes for efficient dye-sensitized solar cells
Authors: Nguyen Hong Minh , Vu Dinh Lam , Nguyen Duc Nghia 
Published: November 2011

Abstract
A new ruthenium complex, coded HMP-12, incorporating an antenna ligand composed of the sequential connection of a conjugated segment and carbazole hole-transport moiety was synthesized. This dye exhibits a lower energy metal-to-ligand charge transfer (MLCT) band centered at 536 nm with a high molar absorption coefficient of 21.43×103
M
−1
cm
−1. Nanocrystalline ZnO dye-sensitized solar cells employing HMP-12 show good conversion efficiency (4.46%). It was found that the difference in light-harvesting properties between Rut-B1, HMP-11 and HMP-12 is associated mainly with dye structure. The power conversion efficiency of solar cells based on HMP-11 is 4.11% while the Rut-B1 delivered a lower efficiency of 3.57% under the same device fabrication and measuring conditions.
Crystallization of Chlorella deoxyuridine triphosphatase
Authors: Badalucco Laura , Poudel Ishwari , Yamanishi Mamoru , Natarajan Chandrasekhar , Moriyama Hideaki 
Published: November 2011

Deoxyuridine triphosphatase (dUTPase) is a ubiquitous enzyme that has been widely studied owing to its function and evolutionary significance. The gene coding for the dUTPase from the Chlorella alga was codon-optimized and synthesized. The synthetic gene was expressed in Escherichia coli and recombinant core Chlorella dUTPase (chdUTPase) was purified. Crystallization of chdUTPase was performed by the repetitive hanging-drop vapor-diffusion method at 298 K with ammonium sulfate as the precipitant. In the presence of 2′-deoxyuridine-5′-[(α,β)-imido]triphosphate and magnesium, the enzyme produced die-shaped hexagonal R3 crystals with unit-cell parameters a = b = 66.9, c = 93.6 Å, γ = 120°. X-ray diffraction data for chdUTPase were collected to 1.6 Å resolution. The crystallization of chdUTPase with manganese resulted in very fragile clusters of needles.
Cloning, expression, purification, crystallization and preliminary X-ray diffraction studies of a major group 7 allergen, Der f 7, from the dust mite Dermatophagoides farinae
Authors: Tan Kang Wei , Kumar Sundramurthy , Chew Fook Tim , Mok Yu Keung 
Published: November 2011

Der f 7 is a major group 7 allergen from the dust mite Dermatophagoides farinae that shows 86% sequence identity to the homologous allergen Der p 7 from D. pteronyssinus. Der f 7 was successfully overexpressed in an Escherichia coli expression system and purified to homogeneity using Ni–NTA affinity and size-exclusion column chromatography. SeMet-labelled Der f 7 was crystallized by the hanging-drop vapour-diffusion method using a reservoir solution consisting of 0.1 M bis-tris pH 7.4 and 28% polyethylene glycol monomethyl ether 2000 at 293 K. X-ray diffraction data were collected to 2.24 Å resolution using synchrotron radiation. The crystals belonged to the orthorhombic system, space group P212121, with unit-cell parameters a = 50.19, b = 58.67, c = 123.81 Å. Based on the estimated Matthews coefficient (2.16 Å3 Da−1), two molecules of Der f 7 could be present in the asymmetric unit of the crystal lattice.
Purification, crystallization and preliminary X-ray diffraction studies of the arsenic repressor ArsR fromCorynebacterium glutamicum
Authors: Santha Sangilimadan , Pandaranayaka Eswari P. J. , Rosen Barry P. , Thiyagarajan Saravanamuthu 
Published: November 2011

ArsR is a member of the SmtB/ArsR family of metalloregulatory proteins that regulate prokaryotic arsenic-resistance operons. Here, the crystallization and preliminary X-ray diffraction studies of a cysteine-free derivative of ArsR fromCorynebacterium glutamicum(CgArsR-C15/16/55S) are reported. CgArsR-C15/16/55S was expressed, purified, crystallized and X-ray diffraction data were collected to 1.86 Å resolution. The protein crystallized in a tetragonal space group (P4), with unit-cell parametersa=b= 41.84,c = 99.47 Å.
Expression, purification, crystallization and preliminary X-ray diffraction studies of the human keratin 4-binding domain of serine-rich repeat protein 1 from Streptococcus agalactiae
Authors: Sundaresan Ramya , Samen Ulrike , Ponnuraj Karthe 
Published: November 2011

Serine-rich repeat protein 1 (Srr-1) is a surface protein from Streptococcus agalactiae. A 17 kDa region of this protein has been identified to bind to human keratin 4 (K4) and is termed the Srr-1 K4-binding domain (Srr-1-K4BD). Recombinant Srr-1-K4BD was overexpressed in Escherichia coli BL21 (DE3) cells. Native and selenomethionine-substituted proteins were prepared using Luria–Bertani (LB) and M9 minimal media, respectively. A two-step purification protocol was carried out to obtain a final homogenous sample of Srr-1-K4BD. Crystals of native Srr-1-K4BD were obtained using PEG 3350 as a precipitant. The crystals diffracted to 3.8 Å resolution using synchrotron radiation and belonged to space group P21, with unit-cell parameters a = 47.56, b = 59.48, c = 94.71 Å, β = 93.95°.
Improved X-ray diffraction from Bacillus megaterium penicillin G acylase crystals through long cryosoaking dehydration
Authors: Rojviriya Catleya , Pratumrat Thunyaluck , Saper Mark A. , Yuvaniyama Jirundon 
Published: November 2011

Penicillin G acylase from Bacillus megaterium (BmPGA) is currently used in the pharmaceutical industry as an alternative to PGA from Escherichia coli (EcPGA) for the hydrolysis of penicillin G to produce 6-aminopenicillanic acid (6-APA), a penam nucleus for semisynthetic penicillins. Despite the significant differences in amino-acid sequence between PGAs from Gram-positive and Gram-negative bacteria, a representative PGA structure of Gram-positive origin has never been reported. In this study, crystallization and diffraction studies of BmPGA are described. Poor diffraction patterns with blurred spots at higher resolution were typical for BmPGA crystals cryocooled after a brief immersion in cryoprotectant solution. Overnight soaking in the same cryo-solution substantially improved both the mosaicity and resolution limit through the establishment of a new crystal-packing equilibrium. A crystal of BmPGA diffracted X-rays to 2.20 Å resolution and belonged to the monoclinic space group P21 with one molecule of BmPGA in the asymmetric unit.
Crystallization and preliminary crystallographic studies of the NAD+-dependent deacetylase HST1 fromSaccharomyces cerevisiae
Authors: Zhu Yuwei , Teng Maikun , Li Xu 
Published: November 2011

TheSaccharomyces cerevisiaeNAD+-dependent deacetylase HST1 belongs to the class III HDAC family; it acts as a transcriptional corepressor for the specific middle sporulation andde novoNAD+-biosynthesis genes and also takes part in the SET3C and SUM1–RFM1–HST1 complexes. Structural information on HST1 and its related complexes would be helpful in order to understand the structural basis of its deacetylation mechanism and the assembly of these complexes. Here, HST1156–503was expressed and crystallized. Crystals grown by the hanging-drop vapour-diffusion method diffracted to 2.90 Å resolution and belonged to space groupP21, with unit-cell parametersa= 40.2,b= 101.7,c = 43.9 Å, β = 103.9°. Both Matthews coefficient analysis and the self-rotation function suggested the presence of four molecules per asymmetric unit in the crystal, with a solvent content of 49.76% (VM= 2.45 Å3 Da−1).
The impact of HFE mutations on haemoglobin and iron status in individuals experiencing repeated iron loss through blood donation*
Authors: Mast Alan E. , Lee Tzong‐Hae , Schlumpf Karen S. , Wright David J. , Johnson Bryce , Carrick Danielle M. , Cable Ritchard G. , Kiss Joseph E. , Glynn Simone A. , Steele Whitney R. , Murphy Edward L. , Sacher Ronald , Busch Michael P. ,   for the NHLBI Retrovirus Epidemiology Donor Study‐II (REDS‐II)
Published: November 2011

SummaryFrequent blood donors become iron deficient. HFE mutations are present in over 30% of donors. A 24‐month study of 888 first time/reactivated donors and 1537 frequent donors measured haemoglobin and iron status to assess how HFE mutations impact the development of iron deficiency erythropoiesis. Donors with two HFE mutations had increased baseline haemoglobin and iron stores as did those with one mutation, albeit to a lesser extent. Over multiple donations haemoglobin and iron status of donors with HFE mutations paralleled those lacking mutations. The prevalence of HFE mutations was not increased in higher intensity donors. Thus, in general, HFE mutations do not temper donation‐induced changes in haemoglobin and iron status. However, in Black donors there was an increase of H63D carriers at baseline, from 3·7% in first time/reactivated donors to 15·8% in frequent donors, suggesting that the relative effects of HFE mutations on iron absorption may vary between racial/ethnic groups. In secondary analyses, venous haemoglobin decreased more slowly in donors with ferritin ≥12 μg/l; and haemoglobin recovery time was shorter in donors with reticulocyte haemoglobin (CHr) ≥32·6 pg, indicating that these biochemical measures are better indicators of a donor’s response to phlebotomy than their HFE mutation status.