bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fair Isn't Always Equal: Constituency Population and the Quality of Representation in Canada
Authors: Thomas Paul E.J. , Loewen Peter John , MacKenzie Michael K. 
Published: May 2013

Abstract.Is there a conflict between the principles of representation by population and the representation of communities of interest? In Canada, the legal requirement to design electoral districts based on pre-existing regions and communities of interest has produced large discrepancies in district populations. Several authors claim that this situation has a deleterious effect on the representational experiences of those citizens living in more populous districts. This paper examines whether the population of an electoral district affects the quality of political representation in that district. We first present survey data characterizing the relationship between constituency population and citizens' reported satisfaction with democracy and contact with politicians and parties. We then present audit experimental evidence from Canada demonstrating that the helpfulness of politicians towards citizens is not conditioned on constituency population. Our data indicate that constituency population has no clear impact on the quality of representational experiences in Canada, suggesting that it is possible to ensure the effective representation of communities of interest without harming the overall quality of Canadian democracy.Résumé.Y a-t-il un conflit entre les principes de représentation par personne et de représentation de communautés d'intérêts? Au Canada, des écarts importants entre la population de certaines circonscriptions électorales résultent de l'obligation légale de les délimiter en tenant compte des régions et des communautés d'intérêts préexistantes. Plusieurs auteurs soutiennent que cette situation entraîne des effets néfastes sur la représentation vécue par les citoyens qui habitent les circonscriptions les plus populeuses. Dans cet article, nous vérifions si la taille de la population influence la qualité de la représentation politique dans une circonscription électorale. Nous présentons d'abord des données d'enquête sur la relation entre la taille de la population d'une circonscription et (i) la satisfaction des citoyens à l'égard de la démocratie, (ii) leurs contacts avec les politiciens et (iii) les communications qu'ils reçoivent des politiciens et des partis. Puis, nous présentons des données d'une expérience menée au Canada qui indiquent que la propension des politiciens à aider les citoyens n'est pas influencée par la taille de la population de leur circonscription. Nos résultats indiquent que la taille de la population d'une circonscription n'a pas d'effet clair sur la qualité de la représentation au Canada, suggérant ainsi qu'il est possible d'assurer la représentation efficace des communautés d'intérêts sans nécessairement nuire à la qualité globale de la démocratie canadienne.
The Oligocene–Miocene tectonic evolution of the northern Outer Carpathian fold-and-thrust belt: insights from compression-and-rotation analogue modelling experiments
Authors: RAUCH MARTA 
Published: May 2013

AbstractThis paper presents the different analogue scenarios of the tectonic evolution of the northern Outer Carpathians (i.e. the Western and northern Eastern Outer Carpathians) which formed as an accretionary wedge in front of the East Alpine–Carpathian–Pannonian (ALCAPA) block during Oligocene–Miocene times. Currently, this fold-and-thrust belt forms an arc which is asymmetrically convex to the north and wider in its eastern part. Palaeomagnetic investigations have suggested that the rocks of the arc underwent counter-clockwise rotation along almost the whole arc, which is difficult to explain as an effect of simple indentation of the triangular indenter. In this case two branches of the arc should be rotated in the opposite directions. The structural evolution of the Western Outer Carpathians is characterized by superposition of two successive tectonic shortening events directed N–S and NE–SW. The results of the presented analogue modelling suggest that two scenarios of the geodynamic evolution of the studied belt could explain the occurrence of such differently oriented shortening events: (1) two phases of differently directed indentation (first to the N, then to the NE) and (2) indenter movement to the NE with simultaneous counter-clockwise rotation. However, the experiment in which the moving indenter is simultaneously rotated produces the most suitable model. The counter-clockwise rotation of the material is only possible in front of both sides of the convex indenter in this model. The results of the analogue modelling also prove that rotation of the ALCAPA block started after formation of the Magura nappe (the innermost nappe of the Western Outer Carpathians).
Do Stock Markets Catch the Flu?
Authors: McTier Brian C. , Tse Yiuman , Wald John K. 
Published: May 2013

AbstractWe examine the impact of influenza on stock markets. For the United States, a higher incidence of flu is associated with decreased trading, decreased volatility, decreased returns, and higher bid-ask spreads. Consistent with the flu affecting institutional investors and market makers, the decrease in trading activity and volatility is primarily driven by the incidence of influenza in the greater New York City area. However, the effect of the flu on bid-ask spreads and returns is related to the incidence of flu nationally. International data confirm our findings of a decrease in trading activity and returns when flu incidence is high.
Debt Maturity and Asymmetric Information: Evidence from Default Risk Changes
Authors: Goyal Vidhan K. , Wang Wei 
Published: May 2013

AbstractAsymmetric information models suggest that a borrower’s choice of debt maturity depends on its private information about its default probabilities, that is, borrowers with favorable information prefer short-term debt while those with unfavorable information prefer long-term debt. We test this implication by tracing the evolution of debt issuers’ default risk following debt issuances. We find that short-term debt issuance leads to a decline inborrowers’ asset volatility and an increase in their distance to default. The opposite is true for long-term debt issues. The results suggest that borrowers’ private information about their default risk is an important determinant of their debt maturity choices.
Anatomical variation of the extracranial course of the optic nerve in the floor of the sphenoid sinus: first reported case
Authors: Girguis-Bucher A , Schlegel-Wagner C 
Published: May 2013

AbstractObjective:We report a unique case of anatomical variation of the extracranial course of the optic nerve running in the floor of the sphenoid sinus.Method:Clinical and radiological findings are presented.Results:A 39-year-old woman with Turner syndrome presented with severe headache associated with visual disturbances. Magnetic resonance imaging revealed a mass presumed to be a sella meningioma. Computed tomography of the paranasal sinuses was undertaken to help plan surgical removal via an endoscopic trans-sphenoidal approach; this scan revealed an atypical extracranial course of the optic nerve, running in the floor of the sphenoid sinus.
Methicillin-resistant Staphylococcus aureus bacteraemia associated with Lemierre's syndrome: case report and literature review
Authors: Kizhner V , Samara G , Panesar R , Krespi Y P 
Published: May 2013

AbstractBackground:Community-acquired methicillin-resistant Staphylococcus aureus is a growing health concern. Lemierre's syndrome is a septic jugular thrombophlebitis that primarily affects young adults. This paper aimed to identify a possible sub-group of Lemierre's syndrome cases associated with community-acquired methicillin-resistant Staphylococcus aureus.Method:This paper reports the case of a 16-year-old male who was admitted for increasing fever, tachycardia, tachypnoea and neck pain. The patient was diagnosed with methicillin-resistant Staphylococcus aureus bacteraemia associated with Lemierre's syndrome. A literature review was subsequently conducted.Results:Following intravenous antibiotic treatment and the sterilisation of blood cultures, the patient improved. The literature review indicated a rise in the past 2 years of Lemierre's syndrome associated with methicillin-resistant Staphylococcus aureus among patients less than 18 years of age.Conclusion:Community-acquired methicillin-resistant Staphylococcus aureus bacteraemia can lead to pulmonary sequelae. When it is associated with pharyngitis, nasopharyngitis or parapharyngeal lymphadenitis, the affected patient may be predisposed to Lemierre's syndrome. As bacterial carriage is predominantly nasal, pharyngitis may not be present. Methicillin-resistant Staphylococcus aureus should be included as an offending bacterium where there is suspicion of Lemierre's syndrome. It is unclear whether anticoagulation alters the course of the bacterium, and surgery is probably contraindicated.
‘The Greatest of Equalisers’: A Critical Review of International Organisations’ Views on Early Childhood Care and Education
Authors: MORABITO CHRISTIAN , VANDENBROECK MICHEL , ROOSE RUDI 
Published: May 2013

AbstractThere is a large consensus among international organisations (e.g., United Nations and the World Bank) in considering Early Childhood Care and Education a prominent policy to equalise opportunities. Moreover, it is common opinion that interventions in early childhood aiming at equalising ‘opportunities’ rather than ‘outcomes’ will overcome political dissent. These two claims draw upon a particular interpretation of the work of contemporary egalitarian philosophers, as well as a number of studies in both developed and developing countries, finding higher benefits for disadvantaged children. Despite the tradition of analysing welfare provision from an equality perspective, the shift towards early childhood education as an equality policy has not yet fully been analysed. We critically examine the consensus advocated by international organisations regarding Early Childhood Care and Education as key to ‘levelling the playing field’ and suggest that the first claim (early childhood as greatest equaliser) should be considered with caution. We also argue that the alleged consensus on this claim may lead to a depoliticisation of social policy.
Vertebrate pollination of the endemic Trochetia granulata (Malvaceae) on Réunion
Authors: Le Péchon Timothée , Sanchez Mickaël , Humeau Laurence , Gigord Luc D.B. , Zhang Li-Bing 
Published: May 2013

Abstract:The pollination ecology and breeding system of Trochetia granulata (Malvaceae), an endemic tree species from Réunion were studied. In 2010–2011, compatibility studies were conducted on a total of 154 flowers from 35 different individuals using three different hand pollination treatments: (a) autofertility, (b) self-pollination and (c) cross-pollination. During the period, we also studied the pollination ecology of T. granulata. During 48 h of video recordings, we tracked flower visits to T. granulata in six different sites and studied the behaviour of the visitors. The results from the hand-cross experiments show that T. granulata is self-compatible (60.8% fruit set) but cannot produce fruit (5.4% fruit set) without the visit of a pollen vector. During surveys, four different visitors were reported: the introduced honey bee (Apis mellifera), two endemic species of white-eye (Zosterops borbonicus borbonicus and Z. olivaceus) and the endemic Réunion day gecko (Phelsuma borbonica). This study documented a new case of vertebrate-pollination by lizard and birds in an insular context. These interactions might be linked to several uncommon floral traits of Trochetia species.
Luminescent properties of Eu3+-doped SmBa3B9O18
Authors: He Ming , Zhang Z.H. , Zhu Y.Z. , Tang Y.G. , Song Z. 
Published: May 2013

Eu3+-doped SmBa3B9O18 luminescent materials were synthesized by high temperature solid state reactions. The structure and photoluminescence properties of Sm(1−x)EuxBa3B9O18 (x = 0.2, 0.4, and 0.6) were investigated by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and photoluminescence spectra. The results show that doping of Eu3+ ions does not change the structure of SmBa3B9O18. The luminescence is mainly the characteristic Eu3+ ion luminescence. No concentration quenching processes occur with the increment of Eu3+ concentration. The work implies that SmBa3B9O18 is a potential host material and europium-doped SmBa3B9O18 may find application in display and optical devices.
Power and music in Cairo: Azbakiyya
Authors: MESTYAN ADAM 
Published: May 2013

ABSTRACTIn this article, the origins of the modern metropolis are reconsidered, using the example of Cairo within its Ottoman and global context. I argue that Cairo's Azbakiyya Garden served as a central ground for fashioning a dynastic capital throughout the nineteenth century. This argument sheds new light on the politics of Khedive Ismail, who introduced a new state representation through urban planning and music theatre. The social history of music in Azbakiyya proves that, instead of functioning as an example of colonial division, Cairo encompassed competing conceptions of class, taste and power.
Patient's experiences of involuntary hospital admission and treatment: A review of qualitative studies
Authors: Katsakou Christina , Priebe Stefan 
Published: May 2013

SUMMARYAims - This study aimed to explore psychiatric patients' experiences of involuntary admission and treatment by reviewing qualitative studies. Method - Qualitative studies investigating patients' experiences of involuntary treatment were identified. Relevant databases were searched and authors were contacted. Thematic analysis was applied for the synthesis of emerging issues. Results - Five studies fulfilled the inclusion criteria. The main areas that appear to be of importance are: patients' perceived autonomy and participation in decisions for themselves, their feeling of whether or not they are being cared for and their sense of identity. In these areas both negative and positive consequences from involuntary admission were mentioned. However, methodological weaknesses were also found, such as small sample sizes. Furthermore, it is not described whether these themes are mentioned by all participants as negative and positive aspects of their experience or whether they reflect views supported by distinct groups. Conclusions - Although the perceived impact of involuntary treatment is fairly clearly described, differences between distinct patient groups are not examined. Future research should investigate such differences in order to inform relevant policy decisions for particular groups.Declaration of Interest: None.
Non-Western immigrant children have lower 25-hydroxyvitamin D than children from Western families
Authors: Omand Jessica A , Darling Pauline B , Parkin Patricia C , Birken Catherine S , Khovratovich Marina , Thorpe Kevin E , Carsley Sarah , DeGroot Julie , Maguire Jonathon L ,   on behalf of the TARGet Kids! Collaboration
Published: May 2013

AbstractObjectiveTo determine if children aged 1–6 years from non-Western immigrant families have lower serum 25-hydroxyvitamin D (25(OH)D) levels than children from Western-born families and examine which factors influence this relationship.DesignCross-sectional study.SettingToronto, Canada.SubjectsHealthy children (n1540) recruited through the TARGet Kids! practice-based research network. Serum 25(OH)D concentrations of non-Western immigrants were compared with those of children from Western-born families. Children from non-Western immigrant families were defined as those born, or their parents were born, outside a Western country. Univariate and multiple linear regression analyses were used to identify factors which might influence this relationship.ResultsMedian age was 36 months, 51 % were male, 86 % had ‘light’ skin pigmentation, 55 % took vitamin D supplements, mean cow's milk intake was 1·8 cups/d and 27 % were non-Western immigrants. Median serum 25(OH)D concentration was 83 nmol/l, with 5 % having 25(OH)D < 50 nmol/l. Univariable analysis revealed that non-Western immigrant children had serum 25(OH)D lower by 4 (95 % CI 1·3, 8·0) nmol/l (P= 0·006) and increased odds of 25(OH)D < 50 nmol/l (OR = 1·9; 95 % CI 1·3, 2·9). After adjustment for known vitamin D determinants the observed difference attenuated to 0·04 (95 % CI −4·8, 4·8) nmol/l (P= 0·99), with higher cow's milk intake (P< 0·0001), vitamin D supplementation (P< 0·0001), summer season (P= 0·008) and increased age (P= 0·04) being statistically significant covariates. Vitamin D supplementation was the strongest explanatory factor of the observed difference.ConclusionsThere is an association between non-Western immigration and lower 25(OH)D in early childhood. This difference appears related to known vitamin D determinants, primarily vitamin D supplementation, representing opportunities for intervention.
Characterizing lunch meals served and consumed by pre-school children in Head Start
Authors: Nicklas Theresa A , Liu Yan , Stuff Janice E , Fisher Jennifer O , Mendoza Jason A , O'Neil Carol E 
Published: May 2013

AbstractObjectiveTo examine the variability of food portions served and consumed by African-American and Hispanic-American pre-school children attending Head Start.DesignCross-sectional.SettingFood consumption by pre-schoolers (n796) enrolled in sixteen Head Start centres in Houston, Texas (51 % boys, 42 % African-American, mean age 4 years) were assessed during 3 d of lunch meals using digital photography. Descriptive statistics and multilevel regression models, adjusting for classroom and school clustering effects, were determined.SubjectsHead Start pre-schoolers aged 3–5 years.ResultsMean amount served was 2428 kJ (580 kcal) and 572 g. Mean intake was 1421 kJ (339 kcal) and 331 g: 20 % protein, 46 % carbohydrate and 34 % fat. Plate waste was 43 % (range: 38 % (fruit) to 61 % (vegetables)). Mean CV of food served was 29 %: 33 % for entrées, 44 % for vegetables, 60 % for fruit and 76 % for starches. Mean CV of food consumed was 46 %: 58 % for entrées, 86 % for fruit, 96 % for vegetables and 111 % for starches. Total gram amount of food served was positively correlated with consumption (r= 0·43,P< 0·001).ConclusionsPlate waste and variation in amounts served and consumed were substantial; amounts served were associated with amounts consumed. Large portion sizes may contribute to paediatric obesity by promoting excessive intake at meals. Understanding factors influencing portion sizes provides insight about specific intervention strategies that can be used in obesity prevention programmes.
Associations between access to farmers’ markets and supermarkets, shopping patterns, fruit and vegetable consumption and health indicators among women of reproductive age in eastern North Carolina, USA
Authors: Jilcott Pitts Stephanie B , Wu Qiang , McGuirt Jared T , Crawford Thomas W , Keyserling Thomas C , Ammerman Alice S 
Published: May 2013

AbstractObjectiveWe examined associations between access to food venues (farmers’ markets and supermarkets), shopping patterns, fruit and vegetable consumption and health indicators among women of reproductive age in eastern North Carolina, USA.DesignAccess to food venues was measured using a Geographic Information System incorporating distance, seasonality and business hours, to quantify access to farmers’ markets. Produce consumption was assessed by self-report of eating five or more fruits and vegetables daily. BMI and blood pressure were assessed by clinical measurements. Poisson regression with robust variance was used for dichotomous outcomes and multiple linear regression was used for continuous outcomes. As the study occurred in a university town and university students are likely to have different shopping patterns from non-students, we stratified analyses by student status.SettingEastern North Carolina.SubjectsLow-income women of reproductive age (18–44 years) with valid address information accessing family planning services at a local health department (n 400).ResultsOver a quarter reported ever shopping at farmers’ markets (114/400). A larger percentage of women who shopped at farmers’ markets consumed five or more fruits and vegetables daily (42·1 %) than those who did not (24·0 %; P < 0·001). The mean objectively measured distance to the farmers’ markets where women reported shopping was 11·4 (sd 9·0) km (7·1 (sd 5·6) miles), while the mean distance to the farmers’ market closest to the residence was 4·0 (sd 3·7) km (2·5 (sd 2·3) miles).ConclusionsAmong non-students, those who shopped at farmers’ markets were more likely to consume five or more servings of fruits and vegetables daily. Future research should further explore potential health benefits of farmers’ markets.
Design, modeling and characterization of MMIC integrated cascode cell for compact Ku-band power amplifiers
Authors: Déchansiaud A. , Sommet R. , Reveyrand T. , Bouw D. , Chang C. , Camiade M. , Deborgies F. , Quéré R. 
Published: May 2013

This paper reports on the design of a new power cell dedicated to Ku-band power amplifier (PA) applications. This cell called “integrated cascode” has been designed in order to propose a strong decrease in terms of circuit size for PA. The technology used relies on 0.25-μm GaAs pseudomorphic high electron mobility transistors (PHEMT) of United Monolithic Semiconductors (UMS) foundry. A distributed approach is proposed in order to model this power cell. The challenge consists of obtaining, with a better shape factor (ratio between the vertical and horizontal sizes of the transistor), the same performances than a single transistor with the same gate width. In order to design a 2W amplifier, we have used two 12 × 100 μm transistors. Cascode vertical size is 413 μm whereas a transistor with the same gate width exhibits a vertical size of 790 μm. Therefore, the shape factor is nearly one as compared to a shape factor of 4 for a classical parallel architecture. This new device allows us to decrease the Monolithic microwave integrated circuit amplifier area of 40% compared to amplifier based on single transistors.
Sigma-1 receptor agonist PRE084 is protective against mutant huntingtin-induced cell degeneration: involvement of calpastatin and the NF-κB pathway
Authors: Hyrskyluoto A , Pulli I , Törnqvist K , Huu Ho T , Korhonen L , Lindholm D 
Published: May 2013

AbstractAlterations in mitochondria and increased oxidative stress are associated with the disease progression in Huntington’s disease (HD). Endoplasmic reticulum (ER) stress and oxidative damage are linked through the close communication between the ER and mitochondria. Sigma-1 receptor (Sig-1R) is a chaperone protein in the ER that is involved in ER stress regulation, but little is known about its role in HD or the mechanisms for cell protection. Here we show that the Sig-1R agonist, PRE084 increases cell survival and counteracts the deleterious effects caused by N-terminal mutant huntingtin proteins in neuronal PC6.3 cells. Particularly, PRE084 increased the levels of cellular antioxidants by activating the NF-κB pathway that is compromised by the expression of mutant huntingtin proteins. These results show that the Sig-1R agonist has beneficial effects in models of HD and that compounds affecting the Sig-1R may be promising targets for future drug development in HD.
Addressable and unidirectional energy transfer along a DNA three-way junction programmed by pyrrole-imidazole polyamides
Authors: Su Wu , Bagshaw Clive R. , Burley Glenn A. 
Published: May 2013

AbstractWe describe a photonic waveguide where FRET is routed uni-directionally along a double-stranded DNA track. The efficiency of FRET is modulated by the supramolecular control of fluorophores along double-stranded DNA using fluorophore-tethered Pyrrole-Imidazole polyamides (PAs). We show that uni-directional FRET is enhanced by the complete assembly of each of the constituent parts, resulting in the selective routing of light along simple DNA duplexes as well as a three-way junction (3WJ).