bluuebunny/crossref_metadata_2025_split huggingface dataset:
Listening to “flying ducks”: Individual differences in sentence–picture verification investigated with ERPs
Authors: Hirschfeld Gerrit , Feldker Katharina , Zwitserlood Pienie 
Published: December 2011

AbstractThe present ERP study investigated individual differences in the integration of verbal descriptions and visual object representations. Participants saw pictures of objects (e.g., a swimming duck) after listening to noun phrases describing the same object in the identical state, a shape‐mismatching state (“flying duck”), or an incongruent object (e.g., “sliced bread”). Individual differences in the vividness of mental imagery and preference for mental imagery were assessed after the experiment. ERP effects of context arose 170 ms after picture onset, differentiating the incongruent‐object context from the other two. The N400 mirrored these context effects. Self‐rated vividness of imagery affected responses to pictures already after 100 ms, and modulated the N400 effect. Participants with highly vivid imagery showed larger context effects than participants low in imagery. The context effects at 170 ms were not modulated by individual differences.
Frontal brain asymmetry and affective flexibility in an emotional contagion paradigm
Authors: Papousek Ilona , Reiser Eva M. , Weber Bernhard , Freudenthaler H. Harald , Schulter Günter 
Published: December 2011

AbstractThis study was aimed at examining the relation of an individual's EEG asymmetry in the lateral frontal cortex, assessed in resting conditions, to affective flexibility. An auditory paradigm was used to induce negative (sad) and positive (cheerful) affective states, and state‐dependent shifts of dorsolateral EEG asymmetry in response to and after the emotional provocations were observed. A Left > Right activation pattern at rest was associated with a shift to the right during negative and a shift to the left during positive stimulation, and efficient recovery after negative stimulation. Right > Left participants appeared unresponsive to both sounds. Distinct and differentiated responses to provocation with negative and positive affect and efficient recovery suggest that Left > Right prefrontal activity at rest is related to a flexible pattern of affective responding, which has been linked to adaptive emotional processing in the relevant literature.
Target resolution in visual search involves the direct suppression of distractors: Evidence from electrophysiology
Authors: Hilimire Matthew R. , Hickey Clayton , Corballis Paul M. 
Published: December 2011

AbstractAttentional selection requires both the enhancement of target stimuli and the suppression of distractors. Target enhancement and distractor suppression have been associated with separable components of the lateralized event‐related potential: the target negativity and distractor positivity (Pd). We examined the distractor suppression mechanisms indexed by the Pd. The Pd may reflect mechanisms that guide attention away from distractors during search or mechanisms involved in the subsequent resolution of target features. To determine which of these alternatives was more likely, we had participants view search arrays that contained only a target, only a distractor, or both. The Pd elicited by distractors was substantially larger when the display also contained a target, consistent with the idea that this component reflects a mechanism of distractor suppression activated during the resolution and disambiguation of target features.
‘My happiness is the refugee camp, my future Palestine’: optimism, life satisfaction and perceived happiness in a group of Palestinian children
Authors: Veronese Guido , Castiglioni Marco , Tombolani Marco , Said Mahmud 
Published: December 2011

Scand J Caring Sci; 2012; 26; 467–473‘My happiness is the refugee camp, my future Palestine’: optimism, life satisfaction and perceived happiness in a group of Palestinian childrenBackground:  This study aimed to explore optimism, perceived happiness and life satisfaction in a group of Palestinian children living in urban districts, rural areas and a refugee camp in the West Bank, as well as in a city in Israel.Method:  Three self‐report instruments were administered to a convenience sample of school‐age children (n. 226; 8–12 years old): the Youth Life Orientation Test (YLOT), the Subjective Happiness Scale (SHS) and the Face Scale (FS). The scores were analyzed using anovas and correlation tests (Pearson’s r). Gender and age differences were explored.Results:  Optimism, life satisfaction and perceived happiness characterize the entire group of Palestinian children in general. Very little difference was found as a function of gender.Conclusion:  Palestinian children seem to enjoy a satisfactory quality of life with regard to optimism, satisfaction and perceived happiness. We hypothesize that these factors may reinforce resilience and positive adjustment to trauma in children. The implications for clinical psychology are discussed.
Monocyte Chemoattractant Protein 1 Expression in Synovial Fluid of Patients With Total Hip Arthroplasty
Authors: Montesi Monica , Beraudi Alina , Stea Susanna , Ancarani Cristina , Traina Francesco , Toni Aldo 
Published: December 2011

AbstractMonocyte chemoattractant protein 1 (MCP‐1) is a member of the chemokines family that stimulates monocyte chemotaxis and whose expression is induced during osseous inflammation. Total hip arthroplasty (THA) now uses ceramic‐on‐ceramic (cer‐cer) or metal‐on‐metal (met‐met) coupling that is considered the bearing of new generation, with improved performance compared with the previous polyethylene bearings. While the ceramic on ceramic is universally considered highly biocompatible, met‐met coupling can induce hypersensitivity correlated to immunological response. This study aimed at quantifying the MCP‐1 levels in synovial fluid of THA patients with these two articular couplings; synovial fluid of osteoarthritic patients who underwent primary THA was used as a control. The presence of wear particles originating from the prostheses was also assessed in the synovial fluid by scanning electron microscopy and energy dispersive X‐ray spectroscopy. The MCP‐1 levels in the synovial fluid of 17 patients with met‐met coupling were significantly higher than in 13 patients with cer‐cer coupling and in seven controls; median MCP‐1 level was 919 pg/mL in the cer‐cer group, 4274 pg/mL in the met‐met group, and 326 pg/mL in the control group. No correlation was found between MCP‐1 levels and the presence of wear particles in the synovial fluid, time from surgery, or periprosthetic osteolysis. We conclude that the presence of the prosthesis is responsible for an increase in the level of MCP‐1; moreover, the significantly higher level of this chemokine in met‐met coupling can be related to inflammatory and possibly hypersensitivity processes induced by metal ions.
Celivarone for Maintenance of Sinus Rhythm and Conversion of Atrial Fibrillation/Flutter
Authors: KHITRI AVINASH R. , ALIOT ETIENNE M. , CAPUCCI ALESSANDRO , CONNOLLY STUART J. , CRIJNS HARRY , HOHNLOSER STEFAN H. , KULAKOWSKI PIOTR , ROY DENIS , RADZIK DAVID , KOWEY PETER R. 
Published: December 2011

Celivarone in Atrial Fibrillation/Atrial Flutter. Introduction: Celivarone, a new noniodinated benzofuran derivative pharmacologically related to dronedarone and amiodarone, has been shown to have antiarrhythmic properties at a molecular level. The purpose of the 2 trials presented here (MAIA and CORYFEE) was to assess celivarone efficacy in the maintenance of sinus rhythm postcardioversion and for the conversion of atrial fibrillation (AF)/atrial flutter (AFL).
Methods and Results: In the MAIA trial, 673 patients with AF/AFL recently converted to sinus rhythm were randomly assigned to receive 50, 100, 200, or 300  mg once‐daily dosing of celivarone; 200  mg daily of amiodarone preceded by a loading dose of 600  mg for 10 days; or placebo. At 3 months’ follow up, no significant difference was observed in time to AF/AFL relapse among the various celivarone groups and placebo. However, fewer symptomatic AF/AFL recurrences were observed in the lower‐dose celivarone groups (26.6% for celivarone 50  mg [P  = 0.022] and 25.2% for celivarone 100  mg [P  = 0.018] vs 40.5% for placebo at 90 days). Fewer adverse events were observed with the use of celivarone and placebo than amiodarone. In the CORYFEE study, 150 patients with AF/AFL were randomly assigned to once‐daily celivarone dosing of 300 or 600  mg, or placebo, for a 2‐day treatment period. There was no significant difference in the rate of spontaneous conversion to sinus rhythm between the treatment and control groups.
Conclusions: In these studies, celivarone does not appear to be efficacious in the maintenance of sinus rhythm in AF/AFL patients or for the conversion of AF/AFL patients. (J Cardiovasc Electrophysiol, Vol. 23, pp. 462‐472, May 2012)
Aggregation pattern, sampling plan, and intervention threshold for Pezothrips kellyanus in citrus groves
Authors: Navarro‐Campos C. , Aguilar A. , Garcia‐Marí F. 
Published: December 2011

AbstractPezothrips kellyanus (Bagnall) (Thysanoptera: Thripidae) has recently emerged as an international pest of citrus. It causes severe scarring of the fruit surface and commercial downgrading of fresh fruit production. The goals of this article were to determine the aggregation patterns of P. kellyanus on citrus, to establish an efficient sampling plan to assess their population density, and to develop an environmental economic injury level (EEIL). The study was conducted in 14 citrus groves in Valencia (Spain) during 2008 and in eight citrus groves during 2009. On each grove, population densities of thrips were monitored weekly on citrus flowers and fruitlets during the flowering and fruit setting period. Final damage was determined on developed fruits. Pezothrips kellyanus was the most abundant thrips species, with 73.5% of adults and 92.1% of larvae present, followed by Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), with 18.2 and 3.5%, respectively. First description of first instars of P. kellyanus is provided. Our results prove that thrips show clumped population distributions, with no differences in aggregation parameters between flowers and fruitlets, thrips species, larval stages, or sex of adults. Immature thrips showed a higher aggregation (Taylor’s value of b = 1.40 ± 0.06) than adults (b = 1.19 ± 0.04). Fruit damage by P. kellyanus on developed fruits was strongly correlated with percentage of fruitlets with immature P. kellyanus (r = 0.897; n = 22). Based on the percentage of fruitlets occupied by immature thrips, the economic injury levels and EEIL were calculated (using chlorpyrifos as insecticide) obtaining values of 7 and 12%, respectively. Insecticide treatments will be necessary if more than 12% of fruitlets are infested by thrips larvae. Constant precision (D = 0.25) sampling plans developed show that 200 sample units should be observed in enumerative sampling, and 310 in binomial presence–absence sampling, at population levels of immatures on fruitlets around the EEIL.
Interaction between pathogenic proteins in neurodegenerative disorders
Authors: Jellinger Kurt A. 
Published: December 2011

Abstract

Introduction
The proteopathic basis of AD
Protein interactions in PD
Induction and spread of protein aggregates in NDDs
Conclusions

The misfolding and progressive aggregation of specific proteins in selective regions of the nervous system is a seminal occurrence in many neurodegenerative disorders, and the interaction between pathological/toxic proteins to cause neurodegeneration is a hot topic of current neuroscience research. Despite clinical, genetic and experimental differences, increasing evidence indicates considerable overlap between synucleinopathies, tauopathies and other protein‐misfolding diseases. Inclusions, often characteristic hallmarks of these disorders, suggest interactions of pathological proteins enganging common downstream pathways. Novel findings that have shifted our understanding in the role of pathologic proteins in the pathogenesis of Alzheimer, Parkinson, Huntington and prion diseases, have confirmed correlations/overlaps between these and other neurodegenerative disorders. Emerging evidence, in addition to synergistic effects of tau protein, amyloid‐β, α‐synuclein and other pathologic proteins, suggests that prion‐like induction and spreading, involving secreted proteins, are major pathogenic mechanisms in various neurodegenerative diseases, depending on genetic backgrounds and environmental factors. The elucidation of the basic molecular mechanisms underlying the interaction and spreading of pathogenic proteins, suggesting a dualism or triad of neurodegeneration in protein‐misfolding disorders, is a major challenge for modern neuroscience, to provide a deeper insight into their pathogenesis as a basis of effective diagnosis and treatment.
Patient characteristics and symptoms associated with perceived coercion during hospital treatment
Authors: Fiorillo A. , Giacco D. , De Rosa C. , Kallert T. , Katsakou C. , Onchev G. , Raboch J. , Mastrogianni A. , Del Vecchio V. , Luciano M. , Catapano F. , Dembinskas A. , Nawka P. , Kiejna A. , Torres‐Gonzales F. , Kjellin L. , Maj M. , Priebe S. 
Published: December 2011

Fiorillo A, Giacco D, De Rosa C, Kallert T, Katsakou C, Onchev G, Raboch J, Mastrogianni A, Del Vecchio V, Luciano M, Catapano F, Dembinskas A, Nawka P, Kiejna A, Torres‐Gonzales F, Kjellin L, Maj M, Priebe S. Patient characteristics and symptoms associated with perceived coercion during hospital treatment.Objective:  Large numbers of psychiatric patients either are involuntarily admitted to hospital treatment or feel coerced despite a legally voluntary admission. For ethical and clinical reasons, their perceived coercion should be reduced as far as possible. There is however limited evidence on patient characteristics associated with perceived coercion during hospital treatment. This study aimed to identify i) sociodemographic and clinical characteristics associated with perceived coercion at admission and ii) changes in symptoms and global functioning associated with changes in perceived coercion over time.Method:  Three thousand and ninety three in‐patients who were involuntarily admitted or felt coerced to hospital treatment despite a legally voluntary admission were recruited in the European evaluation of coercion in psychiatry and harmonization of best clinical practice – EUNOMIA project in 11 European countries. Perceived coercion, global functioning and symptoms were assessed after admission and at a 3‐month follow‐up.Results:  Involuntary admission, female gender, poorer global functioning and more positive symptoms were associated with higher levels of perceived coercion at admission. Perceived coercion significantly decreased over time, and the improvements in global functioning and positive symptoms were associated with reduction in perceived coercion.Conclusion:  Female patients perceive more coercion in psychiatric hospital treatment. Effective treatment for positive symptoms and improving patients’ global functioning may lead to a reduction in perceived coercion.
Smoking influences salivary histamine levels in periodontal disease
Authors: Bertl K , Haririan H , Laky M , Matejka M , Andrukhov O , Rausch‐Fan X 
Published: December 2011

Oral Diseases (2012) 18, 410–416Objectives:  Histamine, a potent vasoactive amine, is increased in saliva of periodontitis patients. The present study aimed to further investigate the diagnostic potential of histamine for periodontal disease and assessed smoking, a major risk factor of periodontitis, as a possible influencing factor.Methods:  Salivary and serum samples of 106 participants (60 periodontitis patients, 46 controls) were collected. Salivary histamine was determined by a commercially available ELISA kit, and serum C‐reactive protein was measured by a routine laboratory test. Cigarettes per day and packyears were assessed as smoking exposure parameters.Results:  Statistically significantly increased levels of salivary histamine and serum C‐reactive protein were detected between the patient and control group (P = 0.022 and P = 0.001). Salivary histamine levels were significantly higher in smoking compared with non‐smoking patients (P < 0.001), and salivary histamine as well as serum C‐reactive protein correlated significantly positively with smoking exposure parameters (P < 0.05).Conclusions:  Smoking, an established and common risk factor of periodontitis, was assessed as a possible influencing factor for salivary histamine. Most interestingly, salivary histamine differed highly significantly between smoking and non‐smoking periodontitis patients. Our results suggest a possible involvement of histamine in tobacco‐exacerbated periodontal disease, but do not suggest salivary histamine as a reliable diagnostic marker for periodontitis.
Self‐assessment of pubertal Tanner stage by realistic colour images in representative Chinese obese and non‐obese children and adolescents
Authors: Sun Ying , Tao Fang‐Biao , Su Pu‐Yu ,   China Puberty Research Collaboration
Published: December 2011

AbstractAim:  This investigation aims to evaluate the validity of self‐assessment of pubertal Tanner stage in representative Chinese children and adolescents.Methods:  The study is a nationally representative cross‐sectional survey in eight research sites in the large project entitled ‘China Puberty Research Collaboration’. Weight, height, self‐assessed pubertal Tanner stage and physical examination of pubic hair in each gender, breast development in girls and genital development in boys from were analysed. Realistic colour images of pubertal rating were used as self‐assessment of pubertal stage.Results:  A large proportion of subjects aged 7.9–18.9 years old were capable of identifying their own pubertal Tanner stage accurately or close to the rater’s assessments. Obese group tends to overestimate their pubertal development compared to non‐obese peers, except for genital assessment in boys. The k values for non‐obese and obese girls were 0.619 (p < 0.0001) and 0.527 (p < 0.0001), respectively, while the k values for non‐obese and obese boys were 0.503 (p < 0.0001) and 0.352 (p < 0.0001).Conclusions:  Self‐assessment of the pubertal stage by using realistic colour images could be a better alternative assessment tool for large epidemiological puberty research compared with Tanner’s original black and white pictures.
Maxillary Sinus Floor Augmentation Surgery with Autogenous Bone Grafts as Ceiling: A Pilot Study and Test of Principle
Authors: Raghoebar Gerry M. , Meijer Henny J.A. , Telleman Gerdien , Vissink Arjan 
Published: December 2011

ABSTRACTBackground: Studies have pointed out that the mere elevation of the maxillary sinus membrane might suffice to allow for bone formation indicating the additional use of augmentation materials to be redundant.Purpose: The purpose of this study was to assess whether elevation of the sinus mucosal lining combined with applying an autologous bone graft as a ceiling and placement of a short implant would allow for bone formation around the implant thus surpassing the need for applying augmentation materials around the installed implants.Materials and Methods: Fourteen consecutive patients were subjected to maxillary sinus floor elevation surgery and simultaneous placement of an implant. Using the lateral bone‐wall window technique, the membrane was exposed and elevated. Next, a bone graft taken from the zygomatic rim was placed as a ceiling above the inserted implant to ensure that the sinus membrane would not collapsed around a significant part of the implant. Finally, the bone window was returned in place. After connecting the healing abutment, the wound was closed.Results: All implants were stable and no implants were lost. There were no complications after harvesting the bone graft. Radiographic evaluation showed a bone gain of 3.2 ± 0.9 mm after 3 months and 3.6 ± 0.9 mm after 1 year. Less than 6% of the implant was not covered by bone after 1 year.Conclusion: Maxillary sinus membrane elevation and simultaneous placement of short endosseous implants with a bone graft as a ceiling on top of the implant result in predictable bone formation around the implant and good osseointegration on radiographs.
Three‐Dimensional Image Correlation Analyses for Strains Generated by Cement and Screw‐Retained Implant Prostheses
Authors: Clelland Nancy L. , Yilmaz Burak , Seidt Jeremy D. 
Published: December 2011

ABSTRACTPurpose: This study aimed to measure and compare strains generated by splinted implant crowns retained by cement or screws for two implants with applied load.Materials and Methods: A stereolithic resin model was printed using computed tomography data from a patient missing all mandibular molar teeth. Two 4 × 6 mm implants were consecutively placed in the left side. One set of splinted cement and screw‐retained crowns were made to fit the two implants. Image correlation technique was used for full‐field measurement of strains using an image correlation software and two synchronized high‐resolution digital cameras. A random dot pattern was applied to the model surface. Cameras recorded changes in random dot patterns as prostheses were loaded up to 400 N in vertical and oblique directions using a universal testing machine. Testing was repeated three times for cement and screw‐retained prostheses. An image correlation algorithm used the dot pattern to define correlation areas or virtual strain gauge boxes. Three‐dimensional coordinates of gauge box centers were determined for each recorded photograph and used to calculate strains. Strain distribution data were compared for major, minor, and von Mises strains for each loading condition, as well as peak and average strains for the field of view using an analysis of variance (α = 0.05).Results: Patterns and magnitudes of strain for cement‐ and screw‐retained splinted crowns were similar under vertical loading. Neither peak nor mean strains were significantly different for the two retention methods. For oblique loading, peak strains were lower for the screw‐retained crowns; however, there were no statistically significant differences between the two groups when strains were averaged throughout the entire field of view.Conclusions: Cement retention did not improve the magnitude of transferred strains for splinted implant crowns using either loading condition.
Characteristics and In Vitro Biologic Assay of Apatite/Titania Composite Coatings on Ti–6Al–4V for Medical Applications
Authors: Sun Tao , Zheng Nan‐Yang , Wang Min 
Published: December 2011

To improve the bioactivity, corrosion resistance, and long‐term biocompatibility of Ti–6Al–4V, apatite/titania composite coatings were synthesized on its surface using a H2O2‐oxidation and subsequent accelerated biomimetic deposition method. Scanning electron microscopic (SEM) examination of coating surfaces and cross‐sections showed that the composite coatings were dense and uniform. The phase composition of titania inner layer and apatite outer layer was investigated using transmission electron microscopy (TEM) and X‐ray diffraction (XRD). In addition, chemical composition of titania inner layer and apatite outer layer was determined using Fourier transform infrared spectroscopy (FTIR). Considering the results from TEM, XRD, and FTIR analyses, it could be concluded that titania inner layer consisted of poorly crystalline anatase phase, and apatite outer layer was composed of low crystalline, calcium‐deficient, and carbonated hydroxyapatite (HA). Based on variations of pH values of five‐time‐strength simulated body fluid (5SBF) during the accelerated biomimetic deposition, possible processes for the formation of the apatite outer layer were discussed. The chemical stability of the apatite/titania composite coatings was also investigated using potentiodynamic polarization tests. After 3 days in culture, viability of MCF‐7 cells seeded on uncoated and coated samples showed that the composite coatings were noncytotxic and could improve the biocompatibility of Ti–6Al–4V.