bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Dielectric-Layer on the Stress Field of Micro Cantilever Beams at the Onset of Pull-In Instability
Authors: Yazdanpanahi E. , Noghrehabadi A. , Ghalambaz M. 
Published: November 2013

ABSTRACTIn this paper, stress distribution of micro cantilever beams in the presence of a dielectric-layer is studied using an analytic method. The Modified Adomian Decomposition Method (MADM) is applied to obtain a semi-analytical solution for a distributed parameter model of the micro cantilever beam. The important parameters for designing and manufacturing micro-actuators such as shear force, bending moment and stress distribution along the cantilevers are computed for different values of the dielectric-layer parameter. The results of MADM are compared with the numerical results, and they found in good agreement. It is found that increase of the dielectric-layer parameter increases the dimensionless pull-in voltage, tip deflection, internal stress and bending moment of the micro cantilever actuators at the onset of pull-in instability.
Dietary and lifestyle characteristics associated with normal-weight obesity: the National FINRISK 2007 Study
Authors: Männistö Satu , Harald Kennet , Kontto Jukka , Lahti-Koski Marjaana , Kaartinen Niina E. , Saarni Suoma E. , Kanerva Noora , Jousilahti Pekka 
Published: November 2013

The aim of the present study was to compare the lifestyle (leisure-time physical activity, smoking habits and alcohol consumption) and dietary (energy-yielding nutrients, dietary fibre and foods) factors of Finns with a new syndrome called normal-weight obesity (NWO) with those of lean and overweight Finns. The representative population-based study included 4786 participants (25–74 years) from the National FINRISK 2007 Study with a health examination and questionnaires. Food intake was assessed using a validated FFQ. NWO was defined to include those with a normal BMI ( < 25 kg/m2) but excessive body fat (for men ≥ 20 % and for women ≥ 30 %) according to WHO definitions. The proportion of participants with a normal BMI was 28 % in men and 42 % in women. Of these, 34 % of the men and 45 % of the women had the NWO syndrome (among all the participants, 10 and 19 %, respectively). The waist circumference of the NWO participants was between that of the lean and overweight participants. Some potential risk factors, such as physical inactivity, (ex)-smoking and alcohol consumption, were related to NWO. In general, the intakes of energy-yielding nutrients were not associated with NWO. Instead, some healthy dietary factors (e.g. low intakes of meat and soft drinks) as well as unhealthy factors (e.g. low intakes of root vegetables, cereals and fish and high intake of confectionery) were related to NWO. The findings might explain why the NWO participants were of normal weight, but had an excessive body fat percentage. In conclusion, the proportion of normal-weight participants with an excessive body fat percentage was surprisingly high. The identification of NWO people may be of importance because although they appear lean, they have some unhealthy lifestyle and dietary habits related to obesity and overall health.
Association between energy-dense food consumption at 2 years of age and diet quality at 4 years of age
Authors: Vilela Sofia , Oliveira Andreia , Ramos Elisabete , Moreira Pedro , Barros Henrique , Lopes Carla 
Published: November 2013

The present study aimed to evaluate the association between the consumption of energy-dense foods at 2 years of age and the consumption of foods and diet quality at 4 years of age. The sample included 705 children evaluated at 2 and 4 years of age, as part of the population-based birth cohort Generation XXI (Porto, Portugal). Data on sociodemographic and lifestyle factors of both children and mothers were collected by face-to-face interviews. The weight and height of children were measured by trained professionals. Based on FFQ, four energy-dense food groups were defined: soft drinks; sweets; cakes; salty snacks. A healthy eating index was developed using the WHO dietary recommendations for children (2006) aged 4 years. The associations were evaluated through Poisson regression models. After adjustment for maternal age and education, child's carer, child's siblings and child's BMI, higher consumption of energy-dense foods at 2 years of age was found to be associated with higher consumption of the same foods 2 years later. An inverse association was found between the intake ( ≥ median) of soft drinks (incidence rate ratio (IRR) = 0·74, 95 % CI 0·58, 0·95), salty snacks (IRR = 0·80, 95 % CI 0·65, 1·00) and sweets (IRR = 0·73, 95 % CI 0·58, 0·91) at 2 years of age and the consumption of fruit and vegetables at 4 years of age ( ≥ 5 times/d). Weekly and daily consumption of energy-dense foods at 2 years of age was associated with a lower healthy eating score at 4 years of age (IRR = 0·75, 95 % CI 0·58, 0·96; IRR = 0·56, 95 % CI 0·41, 0·77, respectively). The consumption of energy-dense foods at young ages is negatively associated with the diet quality of children a few years later.
Lehmer points and visible points on affine varieties over finite fields
Authors: MAK KIT-HO , ZAHARESCU ALEXANDRU 
Published: November 2013

AbstractLet V be an absolutely irreducible affine variety over $\mathbb{F}_p$. A Lehmer point on V is a point whose coordinates satisfy some prescribed congruence conditions, and a visible point is one whose coordinates are relatively prime. Asymptotic results for the number of Lehmer points and visible points on V are obtained, and the distribution of visible points into different congruence classes is investigated.
XRD profile modeling approach tools to investigate the effect of charge location on hydration behavior in the case of metal exchanged smectite
Authors: Ammar Marwa , Oueslati Walid , Ben Rhaiem Hafsia , Ben Haj Amara Abdesslem 
Published: November 2013

This work aims to investigate the hydration behavior and structural properties of two dioctahedral smectites with contrasting location charge (beidellite SbId-1 and montmorillonite SWy-2) according to the nature of the bivalent compensator heavy metal cations (i.e. Hg (II), Ni (II), Ba (II) and Mg (II)). This study is achieved using XRD profile modeling approach based on the simulation of the 00lreflection which allowed us to determine structural characteristics along the c* axis related to the nature, abundance, size, position and organization of exchangeable cation and water molecule in the interlamellar space along the c* axis. The obtained results show that a heterogeneous hydration behavior is systematically observed in all studied samples and the structural models, used to fit samples with tetrahedral charge, are more heterogeneous than smectite with an octahedral sheets substitution. In the case of exchanged beidellite specimen, the proposed models are described by a mixed layer structure with variable abundance containing respectively, dehydrated (0W), mono-hydrated (1W) and bihydrated (2W) layers. Whereas, in the case of the montmorillonite, the absence of 0W hydration state is noted.
Pressure effects on oxygen-deficient Ba-substituted cobaltites
Authors: Sikolenko V. , Efimov V.V. , Többens D. , Schorr S. , Ritter C. , Bushinsky M.V. , Troyanchuk I.O. 
Published: November 2013

Neutron diffraction studies of the La0.5Ba0.5CoO2.8 at the different temperatures has been performed. This solid solution crystallizes in the cubic structure (Pm3m space group) and exhibits below TN ~ 250K G-type antifferomagnetic ordering. Applied pressure suppresses magnetic ordering. Anomalous changes of the lattice parameters under pressure have been found.
Crystal structure of RbBaVO4 and high-pressure modification of KCaVO4
Authors: Tarakina N.V. , Tyutyunnik A.P. , Dyachkova T.V. , Surat L.L. , Slobodin B.V. , Zubkov V.G. 
Published: November 2013

The crystal structures of KCaVO4 and RbBaVO4, synthesized at high-pressure/high-temperature and by a conventional solid-state reaction, respectively, were determined using X-ray powder diffraction data. These compounds were found to have the β-K2SO4 structure type (space group Pnma, Z = 4) with parameters a = 7.2628(5) Å, b = 5.7258(4) Å, c = 9.6854(7) Å (KCaVO4), and a = 7.8887(1) Å, b = 5.9589(1) Å, c = 10.3958(2) Å (RbBaVO4). The unit cell volume of KCaVO4, 402.77(5) Å3, is significantly lower than for the low-temperature modification reported previously, 436.2 Å3. The difference can be explained by a pressure-induced phase transition to a more dense state resulting from the rotation of tetrahedra and the exchange of oxygen atoms from the first and second coordination spheres for potassium and calcium atoms.
Testing the Debye Function Approach on a Laboratory X-ray Powder Diffraction Equipment. A Critical Study.
Authors: Frison Ruggero , Cervellino Antonio , Cernuto Giuseppe , Guagliardi Antonietta , Masciocchi Norberto 
Published: November 2013

Total Scattering Methods are nowadays widely used for the characterization of defective and nanosized materials. They commonly rely on highly accurate neutron and synchrotron diffraction data collected at dedicated beamlines. Here, we compare the results obtained on conventional laboratory equipment and synchrotron radiation when adopting the Debye Function Analysis method on a simple nanocrystalline material (a synthetic iron oxide with average particle size near to 10 nm). Such comparison, which includes the cubic lattice parameter, the sample stoichiometry and the microstructural (size-distribution) analyses, highlights the limitations, but also some strengthening points, of dealing with conventional powder diffraction data collections on nanocrystalline materials.
Psychometric Properties of the Social Physique Anxiety Scale (SPAS–7) in Spanish Adolescents
Authors: Sáenz-Alvarez Piedad , Sicilia Álvaro , González-Cutre David , Ferriz Roberto 
Published: November 2013

AbstractThe purpose of this study was to validate the Spanish version of Motl and Conroy’s model of the Social Physique Anxiety Scale (SPAS–7). To achieve this goal, a sample of 398 secondary school students was used, and the psychometric properties of the SPAS–7 were examined through different analyses. The results supported the seven-item model, although the item 5 did not show any significant correlation with two items from this model and had a lower factor loading than the rest of items. The structure of the model was invariant across gender and Body Mass Index (BMI). Alpha value over .70 and suitable levels of temporal stability were obtained. Girls and students classified according to the BMI as overweight and obese had higher scores in social physique anxiety than boys and the group classified as underweight and normal range. The findings of this study provided reliability and validity for the SPAS–7 in a Spanish adolescent sample.
Structural and molecular basis of ZNRF3/RNF43 transmembrane ubiquitin ligase inhibition by the Wnt agonist R-spondin
Authors: Zebisch Matthias , Xu Yang , Krastev Christos , MacDonald Bryan T. , Chen Maorong , Gilbert Robert J. C. , He Xi , Jones E. Yvonne 
Published: November 2013

AbstractThe four R-spondin (Rspo) proteins are secreted agonists of Wnt signalling in vertebrates, functioning in embryogenesis and adult stem cell biology. Through ubiquitination and degradation of Wnt receptors, the transmembrane E3 ubiquitin ligase ZNRF3 and related RNF43 antagonize Wnt signalling. Rspo ligands have been reported to inhibit the ligase activity through direct interaction with ZNRF3 and RNF43. Here we report multiple crystal structures of the ZNRF3 ectodomain (ZNRF3ecto), a signalling-competent Furin1–Furin2 (Fu1–Fu2) fragment of Rspo2 (Rspo2Fu1–Fu2), and Rspo2Fu1–Fu2 in complex with ZNRF3ecto, or RNF43ecto. A prominent loop in Fu1 clamps into equivalent grooves in the ZNRF3ecto and RNF43ecto surface. Rspo binding enhances dimerization of ZNRF3ecto but not of RNF43ecto. Comparison of the four Rspo proteins, mutants and chimeras in biophysical and cellular assays shows that their signalling potency depends on their ability to recruit ZNRF3 or RNF43 via Fu1 into a complex with LGR receptors, which interact with Rspo via Fu2.
Fine-scale variation in meiotic recombination in
Mimulus
inferred from population shotgun sequencing
Authors: Hellsten Uffe , Wright Kevin M. , Jenkins Jerry , Shu Shengqiang , Yuan Yaowu , Wessler Susan R. , Schmutz Jeremy , Willis John H. , Rokhsar Daniel S. 
Published: November 2013

Significance
This work characterizes variation in recombination across the genome of a flowering plant in detail using unique population genomic and computational approaches. The resulting recombination map approaches nucleotide-level resolution and advances our understanding of basic properties of recombination, notably the findings of enhanced recombination near starts of genes, varying degrees of intensities of “hotspots,” higher activity in exons than introns, and that a large fraction of the genome appears devoid of any recombination activity.
Age and growth parameters for three heavily exploited shark species off temperate eastern Australia
Authors: Geraghty Pascal T. , Macbeth William G. , Harry Alastair V. , Bell Jacqueline E. , Yerman Michelle N. , Williamson Jane E. 
Published: November 2013

AbstractThe removal of large predatory sharks from the world's oceans poses profound threats to marine community structure and species conservation. Effective management of exploited shark stocks requires a sound understanding of the life histories of target species. Here we provide the first assessment of age and growth for Carcharhinus brevipinna in Australian waters, and for C. obscurus and C. plumbeus in eastern Australian waters, based on interpretations of vertebral growth bands. In doing so, we provide arguably among the most robust growth parameters to date for the abovementioned taxa on the bases of genetic validation and sample size and distribution, but acknowledge equally a range of limitations—most notably those associated with vertebral ageing and our lack of age validation. Comparatively, the three species displayed both contrasts and consistencies in their growth characteristics off Australia's southeast coast. For all three sharks, rates of growth were greatest in the years immediately after birth, males grew more rapidly than females in the juvenile phase, and females were observed to grow larger, live longer and were generally larger at any given age. Longevity and all modelled growth parameters (L∞, k and L0), however, differed among the three species, and appeared to challenge the findings for conspecific populations in other parts of the world. The validity of these latter comparisons is, however, compromised by a range of confounding factors. Nevertheless, we provide the least conservative k estimates for C. obscurus and C. plumbeus of those previously reported, and extend maximum age estimates for C. brevipinna. In this way, our results have important implications for the assessment of natural mortality, productivity, and hence resilience to stock depletion, in these species in southeastern Australian waters.
Twentieth century Atlantic meridional overturning circulation as an indicator of global ocean multidecadal variability: influences on sea level anomalies and small pelagic fishery synchronies
Authors: Kamykowski Daniel 
Published: November 2013

AbstractThe Atlantic dipole phosphate utilization (ADPU) index, derived through statistical conversion of 20th century Atlantic basin subpolar sea surface temperatures, is used as a fingerprint of Atlantic meridional overturning circulation (AMOC) variability and as an indicator of global Meridional Overturing Circulation (MOC) variability. ADPU index correlations with differences in sea level anomalies (SLAs) between Canada and the UK and across the Isthmus of Panama demonstrate intrabasin and interbasin associations with MOC variability. Cross-correlation analyses of ADPU index, SLAs, and sardine (S) and anchovy (A) catch differences [S −A] (normalized sardine catch minus normalized anchovy catch) confirm strong correlations between ADPU and [S −A] off Japan, California, Peru and Southwest Africa (Benguela). Statistically significant cross correlations also exist between the ADPU index and SLAs for Japan, California, Peru and Benguela, and for SLAs and [S − A] for Japan, California and Peru, but the short time-series lengths compared with the length of the multidecadal cycle limit the interpretation of the observed lead-lags. Though correlation is not causality, the correlation analyses developed here are useful in support of hypothesis generation. The proposed hypothesis to explain the observed small pelagic fishery synchronies asserts: (i) ocean bathymetry and continental distributions interact with multidecadal variations in MOC strength that occur along the conceptual global conveyor belt to generate changes in global oceanic planetary waves and mesoscale eddies that propagate through the world ocean; (ii) each small pelagic fishery region has a unique spatial relationship with pertinent oceanic planetary wave and mesoscale eddy source regions that affect the timing and strength of the waves and eddies that influence the nearby boundary current; (iii) synchronous changes or phasing among global fisheries depend on how and when MOC variability mediated by oceanic planetary waves and mesoscale eddies reaches each fishery region; (iv) oceanic planetary waves and/or mesoscale eddies influence the strength or meandering of the boundary current adjacent to a small pelagic fishery region to change local SLAs and environmental conditions to favour sardine or anchovy populations at different times.
Natural convection and radiation in porous fins
Authors: Darvishi M.T. , Gorla R.S.R. , Khani F. 
Published: November 2013

Purpose
– The purpose of this paper is to conduct a numerical study of the convection heat transfer in porous media by the homotopy analysis method (HAM). The geometry considered is that of a rectangular profile fin. The porous fin allows the flow to infiltrate through it and solid-fluid interaction takes place. This study is performed using Darcy's model to formulate heat transfer equation. To study the thermal performance, three types of cases are considered namely long fin, finite length fin with insulated tip and finite length fin with tip exposed. The theory section addresses the derived governing equation. The effects of the porosity parameter Sh, radiation parameter G and temperature ratio CT on the dimensionless temperature distribution and heat transfer rate are discussed. The results suggest that the radiation transfers more heat than a similar model without radiation. The auxiliary parameter in the HAM is derived by using the averaged residual error concept which significantly reduces the computational time. The use of optimal auxiliary parameter provides a superior control on the convergence and accuracy of the analytic solution.

Design/methodology/approach
– This study is performed using Darcy's model to formulate heat transfer equation. To study the thermal performance, three types of cases are considered namely long fin, finite length fin with insulated tip and finite length fin with tip exposed. The effects of the porosity parameter Sh, radiation parameter G and temperature ratio CT on the dimensionless temperature distribution and heat transfer rate are discussed.

Findings
– The HAM has been successfully applied for the thermal performance of a porous fin of rectangular profile. Solutions are derived for three cases of tip condition: an infinitely long fin with tip in thermal equilibrium with the ambient, a finite fin with an insulated tip and a finite fin with a convective tip. The performance of the fin depends on three dimensionless parameters; porosity parameter Sh, radiation-conduction parameter G and a dimensionless temperature relating the ambient and base temperatures. The results show that the base heat flow increases when the permeability of the medium is high and/or when the buoyancy effect induced in the fluid is strong. The base heat flow is enhanced as the surface radiation or the tip Biot number increases.

Research limitations/implications
– The analysis is made for the Darcy's model. Non-Darcy effects will be investigated in a future work.

Practical implications
– The approach is useful in enhancing heat transfer rates.

Originality/value
– The results of the study will be interested to the researchers of the field of heat exchanger designers.
On the impact of words: interpretation, empathy and affect regulation
Authors: Bisagni Francesco 
Published: November 2013

AbstractThis paper offers a contribution towards furthering our understanding of a theme more usually associated with the Freudian tradition, namely the role and function of words as action, particularly in relation to the representational process and its somatic roots. Some reference to neuroscience research will be offered in this respect. It also considers the value of differentiating Empathy from Empathism, as defined by the Italian psychoanalyst Stefano Bolognini who distinguishes informing complementary countertransference from states of over‐concordance. Two analytic sessions taken from the intensive analysis of a deeply deprived late‐latency child showing violent behaviour are provided with the aim of illustrating the application of these concepts. It is argued that, given the same elaboration of the countertransference and the adequate empathic position on the part of the analyst, the difference in the outcome of the interpretation was made by the specific use of words—in this case the use or not of the personal pronoun―in the two sessions. As the case material is taken from the clinical work of a supervisee, some elements regarding the supervisory situation are also discussed in the paper.
New oral anticoagulants: An emergency department overview
Authors: Wood Peter 
Published: November 2013

AbstractAs of September 2013, three new oral anticoagulants (NOACs) are now available for clinical use on the Pharmaceutical Benefits Scheme in Australia. All three are for stroke prevention in atrial fibrillation, and one will also be available for the treatment of deep venous thrombosis and pulmonary embolism. All have been evaluated in large, multicentre randomised clinical trials. These drugs show at least equivalent efficacy to the current standard of care, the vitamin K antagonist warfarin. Major bleeding rates are overall comparable with warfarin, but there is an important reduction in intracranial bleeding of approximately 50% with all NOAC agents. The NOACs are administered in a simple, fixed dose regimen. There are a few clinically important interactions with other medications or diet. Concerns exist about the potential for irreversible bleeding in the small number of patients in which that occurs. This short report will discuss the pharmacology of these agents, the indications for use, aspects of laboratory monitoring and the management of bleeding with these agents.
Picturing Nature: Gender and the Politics of Natural‐Historical Description in Eighteenth‐Century Gdańsk/Danzig
Authors: COOPER ALIX 
Published: November 2013

AbstractThe concept of ‘description’ has increasingly come under scrutiny in the history of science. This paper explores eighteenth‐century debates over description through the case study of a scientific family in Gdańsk (the former Danzig). There, on the shores of the Baltic, physician Johann Philipp Breyne took Latin notes on naturalia, while several of his daughters drew and painted vivid representations of them ‘from life’ and one daughter wrote ‘poetical descriptions’ of them. In the Breyne family's work, different forms of description of the natural world were juxtaposed to reveal what might be termed a gendered politics of description.