bluuebunny/crossref_metadata_2025 huggingface dataset:
A conceptual wing-box weight estimation model for transport aircraft
Authors: Ajaj R. M. , Friswell M. I. , Smith D. , Isikveren A. T.
Published: February 2016

This paper presents an overview of an advanced, conceptual wing-box weight estimation and sizing model for transport aircraft. The model is based on linear thin-walled beam theory, where the wing-box is modelled as a simple, swept tapered multi-element beam. It consists of three coupled modules, namely sizing, aeroelastic analysis, and weight prediction. The sizing module performs generic wing-box sizing using a multi-element strategy. Three design cases are considered for each wing-box element. The aeroelastic analysis module accounts for static aeroelastic requirements and estimates their impact on the wing-box sizing. The weight prediction module estimates the wing-box weight based on the sizing process, including static aeroelastic requirements. The breakdown of the models into modules increases its flexibility for future enhancements to cover complex wing geometries and advanced aerospace materials. The model has been validated using five different transport aircraft. It has shown to be sufficiently robust, yielding an error bandwidth of ±3%, an average error estimate of -0·2%, and a standard error estimate of 1·5%.
Creating a space debris catalogue for an orbital band with suitable candidates for active removal
Authors: Dean D.
Published: February 2016

There are over 16,000 pieces of debris that are larger than 10cm in diameter being tracked which could cause a catastrophic destruction of a satellite if they were to collide. To reduce the likelihood of this happening, debris production is being reduced through debris mitigation techniques; however the debris already in space will need to be removed as well. To design an effective debris removal mission, the first logical step would be to gather as much detail as possible on debris that is known to exist within the orbital band of interest. This report presents a catalogue of debris, created entirely from open source data, for an orbital band within the 900-1,000km altitude range and 82-83° inclination, and offers a possible candidate for deorbit – the Cosmos 3M final-stage rocket body, of which there are 142, each with a mass of 1,435kg, length of 6·5m and diameter of 2·4m.
Pressure measurements over a hemisphere-cylinder body attached with a forward facing spike
Authors: Kalimuthu R. , Mehta R. C. , Rathakrishnan E.
Published: February 2016

The present paper presents oil flow visualisations and pressure measurements over a hemisphere-cylinder body attached with a forward facing spike at Mach 6 and Reynolds number of 1·38 × 108 at 0° and 5° angle-of-attack. The oil flow pictures depict the separation region in the vicinity of the spike on the hemisphere-cylinder body. The oil flow visualisations will help to locate the reattachment shock wave on the hemisphere-cylinder body and also understand the flow field behavior on the blunt-nosed spike configuration. The pressure measurements over the hemisphere-cylinder body depend on the shape and the length of the spike. The pressure distributions over the blunt-nosed body show significant influence of the angle-of-attack. The maximum pressure coefficient on the hemisphere-cylinder body is a function of the spike length, shape of the aerodisk and angle-of-attack. The windward and leeward sides pressure variations show dependence of the geometrical parameters of the spike and shape of the spike. The hemisphere and the flat-faced aerodisk cause considerable reduction of pressure leading to decrease of aerodynamic drag compared to the conical spike.
Optimisation of round bodies for aerodynamic performance and stability at supersonic speeds
Authors: Jiajan W. , Chue R. S. M. , Nguyen T. , Yu S.
Published: February 2016

An optimisation procedure coupled with computational fluid dynamics (CFD) is proposed to minimise the aerodynamic drag and to improve the static and dynamic stabilities of generic rounds at supersonic speeds (Mach 1·5 to 4). First, the Active-set algorithm, Sequential Quadratic Programming (SQP) is used as the optimisation method for drag minimisation. The objective function is the zero-lift drag computed from a semi-empirical solution. The constraints are based on the geometric restrictions of the body. CFD is then employed to validate the accuracy of the drag prediction from the semi-empirical solution and to incorporate the stability requirements into the optimisation process. A supersonic round body is considered as an example application. The optimised body provides up to 15% drag reduction and 46% increase in gyroscopic stability while remaining dynamically stable over the whole range of the operating Mach numbers.
Energy absorption of sandwiched honeycombs with facesheets under in-plane crushing
Authors: Atli-Veltin B. , Gandhi F.
Published: February 2016

The in-plane crushing and energy absorption of sandwiched honeycomb cores with facesheets are examined through finite element simulations. Assuming no debonding between the facesheet and honeycomb core (which would be the case if manufacturing techniques such as brazing are used to produce very strong bonds between the facesheeet and the core), intracellular buckling mode for thin facesheets, and wrinkling mode for thick facesheets are observed. In the dimpling mode, deformation is governed by the core, honeycomb vertical cell walls do not deform, and the inclined wall deformation does not vary through the cell depth. In the wrinkling mode, deformation is governed by the facesheet, the vertical cell walls deform significantly, and the inclined cell wall deformation varies through the cell depth. Increasing cell angle increased Specific Energy Absorption (SEA) for honeycombs with thin facesheets. Decreasing vertical cell wall length increased SEA for honeycombs with thick facesheets. Increasing wall thickness and decreasing core depth increased SEA for honeycombs with thin and thick facesheets. With geometric changes, SEA increased ~3 times over the baseline configurations. For a given keel beam dimensions, using fewer rows of larger cells reduces the effective non-dimensional core-depth, thereby increasing the effect of the facesheet and the SEA significantly. The SEA of sandwiched honeycombs with facesheets in in-plane crushing appears to be competitive with, or better than, SEA honeycombs in out-of-plane crushing.
Simulations of a low-boom, axisymmetric, external compression inlet
Authors: Coyne T. , Loth E. , Koncsek J. , Davis D. , Conners T. , Howe D.
Published: February 2016

Computational simulations have been used to study a new low-boom, axisymmetric, external compression supersonic inlet with an on-design Mach number of 1·7. The inlet incorporates a relaxed compression surface with a near-zero cowl angle to help reduce external oblique shock waves due to spillage and cowl geometry. To reduce mechanical complexity the inlet is designed with zero-bleed. To understand the impact on performance and shock overpressure caused by the inlet itself, several throat and diffuser designs were simulated. The computations utilised a Reynolds-averaged Navier-Stokes code. Inflow properties were held consistent with the operational characteristics of the NASA GRC 8′ × 6′ Supersonic Wind Tunnel (SWT) for experimental testing of the inlet of Mach 1·67 at a Reynolds number of 5·4 × 106. Stagnation pressure recovery performance for the baseline condition exceeded 94% at design mass flow rates, and reduced only slightly with increases in Mach number (consistent with theoretical predictions) and extension of cowl position. The simulations also showed that the relaxed compression surface combined with the near-zero cowl angle helps to significantly reduce external oblique shocks This is partly due to the reduced inlet spillage in combination with a reduced overall turning angle placed on the free-stream flow relative to the cowl shape.
Density measurements for rectangular free jets using background-oriented schlieren
Authors: Tipnis T. J. , Finnis M. V. , Knowles K. , Bray D.
Published: February 2016

An experimental study incorporating the use of the Background-Oriented Schlieren (BOS) technique was performed to measure the density field of a rectangular supersonic jet. This technique is easier to set up than conventional schlieren since the optical alignment involving the various mirrors, lenses and knife-edge is replaced by a background pattern and a single digital camera. The acquired images which contain information of density gradients in the flow are solved as a Poisson equation and further processed using deconvolution and tomographic algorithms to generate a 3D domain which contains information about the actual density. 2D slices can then be extracted to quantitatively visualise the density along any required planes. The results from supersonic axisymmetric jets are used for validation of the code; these show excellent agreement with pre-validated CFD data. The results for a rectangular supersonic jet are then obtained. These show good agreement with the CFD data, in terms of shock-cell spacing and overall structure of the jet. The technique has proved useful for investigating axis-switching, a phenomenon generally associated with non-axisymmetric jets.
The influence of simulated missile warhead fragment damage on the aerodynamic characteristics of two-dimensional wings
Authors: Irwin A. J. , Render P. M.
Published: February 2016

The paper describes a method of representing damage on a wing due to multiple warhead fragments, and investigates two of the key variables: fragment impact density and hole diameter. The aerodynamic effects of the damage were quantified by wind-tunnel tests on a two-dimensional wing at a Reynolds number of 5 × 105. The wing was of hollow construction with leading and trailing-edge spars. In all of the cases tested, simulated fragment damage resulted in significant lift losses, drag increases and pitching moment changes. Increasing fragment density or hole size resulted in greater effects. To a first order approximation, both lift and drag increments at a given incidence were related to the percentage wing area removed. Surface flow visualisation showed that low fragment densities and small damage sizes resulted in a complex flow structure on the surface of the wing. This was made up of boundary-layer growth between the damage holes, attached wakes from the forward damage holes and separated surface flow over the rear of the wing. For these cases, individual hole patterns showed similar flow mechanisms to those seen for larger scale gunfire damage cases. Increased fragment density and hole size resulted in upper surface flow separation at the first row of holes. Behind this separation, the flow was attached and consisted of the combined wakes from the forward damage holes. Investigations into the influence of internal model structure indicated that trends in coefficient changes were similar for both hollow and solid wings. However, the magnitudes of the effects were found to be smaller for hollow wings than for solid wings.
Influence of weight modelling on the outcome of wing design using multidisciplinary design optimisation techniques
Authors: Mariens J. , Elham A. , van Tooren M. J. L.
Published: February 2016

Weight estimation methods are categorised in different classes based on their level of fidelity. The lower class methods are based on statistical data, while higher class methods use physics based calculations. Statistical weight estimation methods are usually utilised in early design stages when the knowledge of designers about the new aircraft is limited. Higher class methods are applied in later design steps when the design is mature enough. Lower class methods are sometimes preferred in later design stages, even though the designers have enough knowledge about the design to use higher class methods. In high level multidisciplinary design optimisation (MDO) fidelity is often sacrificed to obtain models with shorter computation times. There is always a compromise required to select the proper weight estimation method for an MDO project.

An investigation has been performed to study the effect of using different weight estimation methods, with low and medium levels of fidelity, on the results of a wing design using multidisciplinary design optimisation techniques. An MDO problem was formulated to design the wing planform of a typical turboprop and a turbofan passenger aircraft. The aircraft maximum take-off weight was selected as the objective function. A quasi-three-dimensional aerodynamic solver was developed to calculate the wing aerodynamic characteristics. Five various statistical methods and a quasi-analytical method are used to estimate the wing structural weight. These methods are compared to each other by analysing their accuracy and sensitivity to different design variables. The results of the optimisations showed that the optimum wing shape is affected by the method used to estimate the wing weight. Using different weight estimation methods also strongly affects the optimisation convergence history and computational time.
One-dimensional model of a pulsed plasma thruster
Authors: Nada T. R.
Published: February 2016

This paper presents a modified one dimensional model for the pulsed plasma thruster. The model takes into account the impact of thruster geometry and capacitor initial energy on plasma inductance and resistance, as well as the ablated mass per pulse. These three factors have significant impact on the performance of the thruster and have not been considered concurrently before. The model is verified by comparing the estimated specific impulse, impulse bit and thrust-to-power ratio with experimental measurements for space qualified thrusters. The maximum error is estimated to be about 8% when using the modified model, while the conventional snowplow model produces error up to about 70%. The modified model is then employed to generate design charts that would help in selecting the proper combination of thruster geometry and energy level in the preliminary design phase of a pulsed plasma thruster for different space missions.
Buoyancy estimation of a Montgolfière in the atmosphere of Titan
Authors: Dorrington G. E.
Published: February 2016

Prediction of the buoyancy of a thermal balloon, or Montgolfière, intended to float in the atmosphere of Titan is discussed. A laboratory based experiment designed to measure the buoyant lift of an electrically-heated, single-wall, natural-shape balloon is described. The experimental results presented closely match an analytical model employing established heat transfer correlations with selected parameter values. When the model is extrapolated to the cryogenic conditions representative of Titan’s lower troposphere, using the same correlations and parameters, the estimated buoyancy is found to be substantially higher than has been previously predicted. To account for the buoyancy difference, it is suggested that the internal free convection heat transfer rate is significantly lower than has been assumed in previous studies. To substantiate this result, it is recommended that further experiments should be performed at higher Rayleigh numbers.
In-flight simulation of wake encounters using deformed vortices
Authors: Vechtel D.
Published: February 2016

During the decay process the shape of wake vortices changes significantly which has an influence on the encounter characteristics, hence on the encounter hazard. In order to evaluate the influence of vortex deformation on the wake encounter hazard, in-flight simulations with the DLR research aircraft ATTAS were carried out. For a realistic analysis of wake encounters flow fields of matured vortices were generated with large eddy simulations. These flow fields were used for the determination of histories of induced forces and moments acting on the wake encountering aircraft. The force and moment histories were then fed into the equations of motions of the non-linear six degree-of-freedom in-flight simulation of the DLR research aircraft ATTAS. In order to compare different stages of vortex deformation, encounters were simulated in flight with wavy vortices and vortex rings. The most important benefit of the in-flight-simulation is the realistic environment, which enables a realistic assessment of pilots’ encounter acceptance. The analysed scenario was of a wake encounter during final approach. The encounter conditions correspond to separation distances of about 4nm and 5nm behind an aircraft of the ‘heavy’ category. During the encounters the ATTAS was flown under manual control. Altogether 31 encounters were simulated in flight, 9 with wavy vortices and 22 with vortex rings.
Effect of a special reinforcement on the elastic properties of micro- and nanocomposites with polymer matrix
Authors: Guz I. A. , Rushchitsky J. J. , Guz A. N.
Published: February 2016

The paper revisits some of the well-known models in the mechanics of structurally heterogeneous media for the purpose of analysing their suitability to describe properties of nanocomposites and their mechanical behaviour. It also presents a new multi-component model for predicting the mechanical properties of micro- and nanocomposites reinforced either by whiskerising the microfibres or by bristlising the nanowires. The mathematical formulation of the model is based on using the Muskhelishvili complex potentials for each domain occupied by a separate component. As an example, the effective elastic constants are computed for fibrous composites with four different densities of whiskerisation. It is shown that the increase in the number of bristles per unit surface of the fibres gives a very strong rise to the value of Young’s modulus. However, the shear modulus, being the driving parameter for the strength estimation of the entire composition, is less sensitive to this factor.
Comparison of flight test data with a computational fluid dynamics model of a Scottish Aviation Bulldog aircraft
Authors: Lawson N. J. , Salmon N. , Gautrey J. E. , Bailey R.
Published: February 2016

The following paper presents detailed aerodynamic data of a Scottish Aviation Bulldog light aircraft. The data is taken from the pre-stall region of the aircraft flight envelope through two flight test methods and from a geometrically accurate computational fluid dynamics (CFD) model of the full scale aircraft, which was meshed in Ansys ICEM CFD and solved in Ansys Fluent. The fidelity of the CFD model was achieved by development of a CATIA solid model with surfaces matching a spatial point cloud of the aircraft taken using a 3D laser scanner. Following a CFD verification process, a 3·4m hybrid mesh with a Spalart-Allmaras (SA) turbulence model was found to give the best overall lift and drag characteristics. Further detailed comparisons with the glide flight test data showed the CFD drag polar to have 63% lower zero lift drag, although this discrepancy was related to the simplification of the original CATIA surface model, which excluded the undercarriage, aerials and other protuberance drags. Inclusion of estimates of these sources of drag resulted in a match in zero lift drag to within 15% and a maximum lift to drag of 10:1 which was within 11% of the glide flight test result. The remaining drag discrepancy is attributed to other effects including trim drag and the surface finish of the actual aircraft.
Numerical and experimental investigation of tip leakage flow and heat transfer using idealised rotor-tip models at transonic conditions
Authors: Krishnababu S. K. , Hodson H. P. , Dawes W. N. , Newton P. J. , Lock G. D.
Published: February 2016

The effect of tip geometry on discharge coefficient and heat transfer is investigated both experimentally and numerically using idealised models of an unshrouded rotor blade. A flat tip was compared with two squealer-type geometries (a cavity and suction-side squealer) under the transonic conditions expected in the gas turbine engine. Heat transfer measurements were performed using a transient liquid crystal technique while a duplicate test section was used for measuring the pressure field. Computations were carried out using an unstructured, fully compressible, three-dimensional RANS (Reynolds averaged Navier Stokes) solver. Initial computations performed using a low Reynolds number k-ε model demonstrated the inability of the model to predict the Nusselt number with reasonable accuracy. Further computations performed using a low Reynolds number k-ω model improved the predictions dramatically. The computed discharge coefficient and the average Nusselt number over the blade tip agreed well with the experiments. Three upstream-total to exit-static pressure ratios were used to create a range of engine-representative Mach numbers. Both experimental and numerical studies at the lower pressure ratio of 1·3 (exit Mach number ~ 0·65) established the cavity geometry as the best performer from an aerodynamic perspective by reducing the discharge through the tip. However, from the heat transfer perspective, both the peak Nusselt number and the average heat transfer to the tip were higher than the flat tip. At the higher pressure ratios of 1·85 and 2·27 (corresponding to exit Mach numbers ~ 0·98 and 1·12) the discharge coefficient and heat transfer to the tip increases. This paper explores the fluid dynamics associated with these flows and shows that the highest heat transfer is caused by reattachment and flow impingement. The fluid dynamic computations provide insight into the experimental measurements and were successfully compared with simple analytical models.
CFD fire simulation of the Swissair Flight 111 in-flight fire – Part II: Fire spread analysis
Authors: Jia F. , Patel M. K. , Galea E. R. , Grandison A. , Ewer J.
Published: February 2016

In 1998, Swissair Flight 111 (SR111) developed an in-flight fire shortly after take-off which resulted in the loss of the aircraft, a McDonnell Douglas MD-11, and all passengers and crew. The Transportation Safety Board (TSB) of Canada, Fire and Explosion Group launched a four year investigation into the incident in an attempt to understand the cause and subsequent mechanisms which lead to the rapid spread of the in-flight fire. As part of this investigation, the SMARTFIRE Computational Fluid Dynamics (CFD) software was used to predict the ‘possible’ development of the fire and associated smoke movement. In this paper the CFD fire simulations are presented and model predictions compared with key findings from the investigation. The model predictions are shown to be consistent with a number of the investigation findings associated with the early stages of the fire development. The analysis makes use of simulated pre-fire airflow conditions within the MD-11 cockpit and above ceiling region presented in an earlier publication (Part I) which was published in The Aeronautical Journal in January 2006.
Active Control of a hybrid actuation system for aircraft vertical fin buffet load alleviation
Authors: Chen Y. , Wickramasinghe V. , Zimcik D.
Published: February 2016

Twin-tail fighter aircraft may experience intense buffet loads when flying at high angles of attack. One such aircraft is the F/A-18 where the broadband buffet loads primarily excite the first bending and torsional modes of the vertical fin, resulting in significant vibration and dynamic stresses on the vertical tail structure. This buffet phenomenon reduces the fatigue life of the aircraft structure while decreasing mission availability.

An international technical co-operation program was initiated to develop a novel hybrid actuation system to actively alleviate the buffet response of a full-scale F/A-18 vertical fin. A hydraulic rudder actuator was used to control the bending mode of the vertical fin using rudder inertia forces. Multiple macro fiber composite actuators were distributed optimally to provide maximum induced strain control authority for the torsional mode. In order to develop an effective control law, a system identification approach was conducted to obtain a state-space model of the vertical fin using open-loop test data. An LQG control law was selected to minimise the dynamic response of the vertical fin at critical locations. The effectiveness of the control law was verified through extensive simulation prior to closed-loop experiments. The LQG control law demonstrated high robustness in all excitation load conditions; both bending and torsional vibration modes of the vertical tail were suppressed effectively and simultaneously. The dynamic stress and acceleration response at critical locations were also reduced significantly. A closed-loop experiment was conducted on a full-scale F/A-18 empennage using the IFOSTP test rig, and the experimental results verified the effectiveness of the control law development methodology used for the full-scale hybrid buffet load system for the F/A-18 aircraft. In addition, the ground vibration test demonstrated that the hybrid actuation system is a feasible solution to alleviate the vertical tail buffet loads in high performance fighter aircraft.
Inositol for the prevention of neural tube defects: a pilot randomised controlled trial
Authors: Greene Nicholas D. E. , Leung Kit-Yi , Gay Victoria , Burren Katie , Mills Kevin , Chitty Lyn S. , Copp Andrew J.
Published: February 2016

Although peri-conceptional folic acid (FA) supplementation can prevent a proportion of neural tube defects (NTD), there is increasing evidence that many NTD are FA non-responsive. The vitamin-like molecule inositol may offer a novel approach to preventing FA-non-responsive NTD. Inositol prevented NTD in a genetic mouse model, and was well tolerated by women in a small study of NTD recurrence. In the present study, we report the Prevention of Neural Tube Defects by Inositol (PONTI) pilot study designed to gain further experience of inositol usage in human pregnancy as a preliminary trial to a future large-scale controlled trial to evaluate efficacy of inositol in NTD prevention. Study subjects were UK women with a previous NTD pregnancy who planned to become pregnant again. Of 117 women who made contact, ninety-nine proved eligible and forty-seven agreed to be randomised (double-blind) to peri-conceptional supplementation with inositol plus FA or placebo plus FA. In total, thirty-three randomised pregnancies produced one NTD recurrence in the placebo plus FA group (n19) and no recurrences in the inositol plus FA group (n14). Of fifty-two women who declined randomisation, the peri-conceptional supplementation regimen and outcomes of twenty-two further pregnancies were documented. Two NTD recurred, both in women who took only FA in their next pregnancy. No adverse pregnancy events were associated with inositol supplementation. The findings of the PONTI pilot study encourage a large-scale controlled trial of inositol for NTD prevention, but indicate the need for a careful study design in view of the unwillingness of many high-risk women to be randomised.
THE GALWAY PACKET-BOAT CONTRACT AND THE POLITICS OF PUBLIC EXPENDITURE IN MID-VICTORIAN IRELAND
Authors: KANTER DOUGLAS
Published: February 2016

This article argues that political considerations, economic theory, attitudes toward public finance, and concerns about regional development all influenced contemporary responses to the Galway packet-boat contract of 1859–64. Though historians have conventionally depicted the dispute over the contract as an episode in Victorian high politics, it maintains that the controversy surrounding the agreement between the Galway Company and the state cannot be understood solely in terms of party manoeuvre at Westminster. In the context of the Union between Britain and Ireland, the Galway contract raised important questions about the role of the British government in fostering Irish economic development through public expenditure. Politicians and opinion-makers adopted a variety of ideologically informed positions when addressing this issue, resulting in diverse approaches to state intervention, often across party lines. While political calculation and pressure from interest groups certainly affected policy, the substantive debate on the contract helped to shape the late Victorian Irish policy of both British parties by clarifying contemporary ideas about the economic functions appropriate to the Union state.
Predicting the potential distribution of the Endangered huemul deer Hippocamelus bisulcus in North Patagonia
Authors: Quevedo Paloma , von Hardenberg Achaz , Pastore Hernán , Álvarez José , Corti Paulo
Published: February 2016

Habitat loss is one of the main threats to wildlife, particularly large mammals. Estimating the potential distribution of threatened species to guide surveys and conservation is crucial, primarily because such species tend to exist in small fragmented populations. The Endangered huemul deer Hippocamelus bisulcus is endemic to the southern Andes of Chile and Argentina. Although the species occurs in the Valdivian Ecoregion, a hotspot for biodiversity, we have no information on its occupancy and potential distribution in this region. We built and compared species distribution models for huemul using the maximum entropy approach, using 258 presence records and sets of bioclimatic and geographical variables as predictors, with the objective of assessing the potential distribution of the species in the Valdivian Ecoregion. Annual temperature range and summer precipitation were the predictive variables with the greatest influence in the best-fitting model. Approximately 12,360 km2 of the study area was identified as suitable habitat for the huemul, of which 30% is included in the national protected area systems of Chile and Argentina. The map of potential distribution produced by our model will facilitate prioritization of future survey efforts in other remote and unexplored areas in which huemul have not been recorded since the 1980s but where there is a high probability of their occurrence.
Does it matter where the children are? The wellbeing of elderly people ‘left behind’ by migrant children in Moldova
Authors: WAIDLER JENNIFER , VANORE MICHAELLA , GASSMANN FRANZISKA , SIEGEL MELISSA
Published: February 2016

This paper empirically evaluates the wellbeing of elderly individuals ‘left behind’ by their adult migrant children in Moldova. Using data from a nationally representative household survey conducted in 2011–12 in Moldova, the wellbeing outcomes of elderly individuals aged 60 and older with and without adult children living abroad are compared (N = 1,322). A multi-dimensional wellbeing index is constructed on the basis of seven indicators within four dimensions of wellbeing: physical health, housing, social wellbeing and emotional wellbeing. Probit regressions are used to predict the probability of an elderly individual being considered well in each indicator and then on total index level. The results reveal that elderly persons with an adult migrant child have a higher probability of being well in one physical health indicator. Following correction for the selectivity of migration using an instrumental variable approach, however, the migration of an adult child is no longer found to predict significantly the wellbeing of their elderly parents in any dimension, suggesting that migration bears limited consequences for elderly wellbeing.
Activism within music education: working towards inclusion and policy change in the Finnish music school context
Authors: Laes T. , Schmidt P.
Published: February 2016

The publisher regrets to announce that the institutional affiliation listed for Patrick Schmidt in the above article (Laes & Schmidt 2016) was incorrect. The proper address is given below.

The publisher apologises for this error.

The University of Western Ontario, Talbot College, 1151 Richmond St., Office 119, London, ON N6A 3K7 Canada. Patrick.schmidt@uwo.ca
Processing of positive-causal and negative-causal coherence relations in primary school children and adults: a test of the cumulative cognitive complexity approach in German
Authors: KNOEPKE JULIA , RICHTER TOBIAS , ISBERNER MAJ-BRITT , NAUMANN JOHANNES , NEEB YVONNE , WEINERT SABINE
Published: February 2016

Establishing local coherence relations is central to text comprehension. Positive-causal coherence relations link a cause and its consequence, whereas negative-causal coherence relations add a contrastive meaning (negation) to the causal link. According to the cumulative cognitive complexity approach, negative-causal coherence relations are cognitively more complex than positive-causal ones. Therefore, they require greater cognitive effort during text comprehension and are acquired later in language development. The present cross-sectional study tested these predictions for German primary school children from Grades 1 to 4 and adults in reading and listening comprehension. Accuracy data in a semantic verification task support the predictions of the cumulative cognitive complexity approach. Negative-causal coherence relations are cognitively more demanding than positive-causal ones. Moreover, our findings indicate that children's comprehension of negative-causal coherence relations continues to develop throughout the course of primary school. Findings are discussed with respect to the generalizability of the cumulative cognitive complexity approach to German.
The 2011 Protests in Inner Mongolia: An Ethno-environmental Perspective
Authors: Baranovitch Nimrod
Published: February 2016

In May 2011, Inner Mongolia experienced the most serious ethnic unrest in the region for 30 years. In this article, I explore the broader context that led to the eruption of the protests, with a particular emphasis on environmental issues. My aim is to explain why environmental issues occupied such a prominent position in the protests, and how these issues were connected to ethnicity. After discussing the material and practical implications of grassland degradation for Mongolian herders, I analyse the symbolic implications of this environmental crisis for the Mongolian educated elite, who have linked environmental issues to ethnic politics and identity. I argue that in the last 20 years or so, Mongolian intellectuals have developed a highly ethnicized environmental discourse, and that this discourse played an important role in informing the 2011 protests. My analysis focuses on this discourse as it is manifested in the domains of art, academia and daily discourse.
Diversity in Democracy: Accommodating Religious Particularity in Largely Secular Legal Systems
Authors: Künkler Mirjam , Sezgin Yüksel
Published: February 2016

The articles assembled in this symposium share their roots in a workshop we organized at the International Institute for the Sociology of Law (IISJ) in Onati, Spain, in June 2011. The workshop, titled “Legal Pluralism and Democracy. When Does Legal Pluralism Enhance, When Does It Erode Legitimacy of and Trust in Democratic Institutions?” examined the consequences of legal pluralism for various facets of democracy, from human rights and political equality to issues of stateness, legitimacy, and self-determination. Half of the papers discussed the application of customary law in pluri-legal systems, particularly in Africa and South America, while the other half dealt with the application of religious law, especially in Muslim-majority countries as well as Israel and India.

Other papers presented at the workshop have been published in the IISJ's “Oñati Socio-Legal Series” on the Social Science Research Network and are available for download at http://papers.ssrn.com/so13/JELJOUR_Results.cfm?form_name=journalbrowse&journal_id=1605943.

The three articles featured in this symposium address how the law may take account of diversity in the face of the democratic promise of universal rights standards: they probe the question of how to accommodate cultural particularity while also delivering upon the promise of universal and equal citizenship. Both are crucial sources of legitimacy of and trust in democratic political systems, even while they are also often mutually exclusive standards.
The Theater of Deviance and the Normative Boundaries of Society: Lessons from the Rabbinic Interpretations to the Biblical Law of Sotah
Authors: Greenfield Shivi
Published: February 2016

A widely held view on the purpose of criminal law is that it is designed to maintain social order. Assuming this view to be correct, how does criminal law achieve its purpose? The standard answer is by deterring crimes through the threat of penalties, and by incapacitating or rehabilitating criminals so that they cannot or will not engage in future crimes. Sociologists, however, have a somewhat different answer: criminal law maintains social order by branding deviant behavior as criminal. Society, it is argued, is constructed through opposition and contrast: it creates and preserves its identity, its distinct structure and unique shape, by emphasizing the differences between its own characteristics and practices and the characteristics and practices of the Other, the deviant. Deviance, in this view, is essentially a relative phenomenon. The definition of deviance, which changes from era to era and from place to place, is just that characteristic which society designates to establish, through it and in contrast to it, its identity and boundaries. Whatever the society, the deviant in that society is one who “represents the forces excluded by the group's boundaries,” informing society “as it were, what the evil looks like, what shapes the evil can assume.” In doing so, the deviant shows society “the differences between kinds of experience which belong within the group and kinds of experience which belong outside it.”
Religious Tribunals in Democratic States: Lessons from the Israeli Rabbinical Courts
Authors: Hacker Daphna
Published: February 2016

In democratic countries where the law might be influenced by religious communities, family law cases can present one of the most sensitive and complex challenges. Religious laws governing personal status and the supervision of family relations are vital components of many religions and, in some cases, crucial to the cultural survival of the religious community. However, the family laws of some religions are discriminatory towards women, same-sex couples, people of other religions, and other groups. Currently, there is heated political and scholarly debate about the tension between the norms of multiculturalism, which dictate that religious communities be allowed to preserve their values and culture, including through autonomy over family law, and liberal norms prohibiting the discrimination that religious family law can perpetrate.

One of the best known liberal advocates for restricting discriminatory cultural practices of minority groups was Susan Moller Okin. Okin maintained that many cultural minorities are more patriarchal than the surrounding culture and that the female members of the patriarchal culture might be much better off were the culture into which they were born to become extinct, if, that is, it could not be altered so as to uphold women's equality. She pointed to religious personal law as one example of a sphere in which patriarchal cultures strive to maintain autonomy at the cost of women's and girls' freedom and basic rights. Consistent with her view, nation states should not give legal autonomy over family matters to patriarchal minorities unless these minorities reform their religious laws so as not to discriminate against or impair the rights of women and girls.
“The Two Sons of Oil” and the Limits of American Religious Dissent
Authors: Wedgeworth Steven
Published: February 2016

In the opening decades of the nineteenth century, Samuel Brown Wylie, an Irish-Presbyterian minister of a group of Scottish and Scots-Irish Presbyterians known as the Covenanters, and William Findley, a United States Congressman and also a descendant of the Covenanters, debated the Constitution's compatibility with Christianity and the proper bounds of religious uniformity in the newly founded Republic. Their respective views were diametrically opposed, yet each managed to borrow from different aspects of earlier political traditions held in common while also laying the groundwork for contrasting political positions which would more fully develop in the decades to come. And more than a few times their views seem to criss-cross, supporting contrary trajectories from what one might expect.

Their narrative, in many ways strange, challenges certain “Christian” understandings of early America and the Constitution, yet it also poses a few problems for attempts at a coherent theory of secularity, natural law, and the common good in our own day.

Samuel Brown Wylie is an obscure figure in American history. As a Covenanter, Wylie was forced to immigrate to America due to his involvement in the revolutionary United-Irishmen in Ulster. After finding it impossible to unite with other Presbyterians in Pennsylvania, Wylie became the first minister in the “Reformed Presbyterian Church of the United States,” which would also be called “the Synod of the Reformed Presbyterian Church.” According to his great-grandson, Wylie also went on to become the vice-Provost of the University of Pennsylvania.
The Morality of Human Rights: A Secular Ground
Authors: Byers Dohrman W.
Published: February 2016

The July 14, 2006, issue of Commonweal carried an article by Michael J. Perry, entitledThe Morality of Human Rights: A Problem for Nonbelievers?. In that article, as in his booksThe Idea of Human Rights: Four Inquiries, andToward a Theory of Human Rights: Religion, Law, Courts, Perry argues that a plausible nonreligious foundation for the idea of human rights has yet to be articulated—that this idea, therefore, appears to be unavoidably religious. He expresses concern that “the growing marginalization of religious belief in many societies that have taken human rights seriously—in particular, in many liberal democracies… may leave those societies bereft of the intellectual resources to sustain the morality of human rights.”

Nicholas Wolterstorff shares Perry's judgment. “It is impossible to develop a secular account of human dignity adequate for grounding human rights. Or to speak more cautiously: given that, after many attempts, no one has succeeded in developing such an account, it seems unlikely that it can be done.”
The Paradox of the Global and the Local in the Financial Crisis of 2008: Applying the Lessons of Caritas in Veritate to the Regulation of Consumer Credit in the United States and the European Union
Authors: Schiltz Elizabeth R.
Published: February 2016

In his recent encyclical Caritas in Veritate, Pope Benedict XVI grapples with one of the most vexing paradoxes concerning the current global economic crisis. There is no question that it is a global financial crisis. The collapse of the subprime mortgage loan market in the U.S. in 2007 prefigured similar collapses of real estate bubbles in other parts of the world. The collapse of these real estate bubbles exposed the degree of interconnectedness among financial institutions across the globe created by the worldwide market for the derivate investment products created on the backs of the underlying real estate loans—the mortgage-backed securities in all their complex manifestations, and the credit default swaps that were essentially insurance policies on the risks of default of these securities. Various configurations of international coordinating bodies have called for global responses to the crisis. At its root, however, the current crisis is in a very important sense fundamentally a uniquely local phenomenon. It is the result of individual consumer transactions that are about as inherently local as a commercial transaction can ever get—loans to specific individual consumers tied to specific unique, unmovable pieces of residential real estate. Every single loan packaged into the bundles of investment opportunities that became “toxic assets” held by large institutional investors originated with a contractual relationship between an individual borrower and a single lender. In addition to the global macroeconomic consequences of the collapse of this market, every one of these loans that goes into default has personal consequences for the individual borrower whose home is the collateral for that loan.
Pluralism, Secularism and The European Court of Human Rights
Authors: Calo Zachary R.
Published: February 2016

The Article 9 religious freedom jurisprudence of the European Court of Human Rights most basically concerns the question of religious pluralism. The “principle of pluralism seems to be the main—the core—principle” guiding the Court's religious freedom jurisprudence, argues one of the Court's judges. Assessing the Court's work in the area of religious freedom therefore requires considering its treatment of pluralism, which is the concept most often employed to interpret Article 9 of the European Convention on Human Rights. The Court's approach to religious pluralism is still heavily indebted to the decision inKokkinakis v. Greece, a 1993 case involving a Jehovah's Witness who had been repeatedly arrested and jailed for violating Greece's prohibition on proselytism. In the majority opinion finding that Mr. Kokkinakis's Article 9 rights had been violated, the Court writes the following:
Church Autonomy in the European Court of Human Rights—Recent Developments in Germany
Authors: Robbers Gerhard
Published: February 2016

The European Court of Human Rights is currently considering several German cases on the autonomy of religious organizations or churches within secular German labor law and resulting conflict resolution issues that arise within religious communities. In the past, the European Court of Human Rights has consistently underlined the importance of church autonomy, relying on the European Convention of Human Rights and Fundamental Freedoms Article 9 guarantees of freedom of thought, conscience and religion:

Everyone has the right to freedom of thought, conscience and religion; this right includes freedom to change his religion or belief and freedom, either alone or in community with others and in public or private, to manifest his religion or belief, in worship, teaching, practice and observance.

Freedom to manifest one's religion or beliefs shall be subject only to such limitations as are prescribed by law and are necessary in a democratic society in the interests of public safety, for the protection of public order, health or morals, or for the protection of the rights and freedoms of others.

Implementing these provisions in the context of religious autonomy, the Court has critically noted:

[T]he autonomous existence of religious communities is indispensable for pluralism in a democratic society and is, thus, an issue at the very heart of the protection which Article 9 affords.… The right [of religious communities] to an autonomous existence is at the very heart of the guarantees in Article 9.
From Cartoons to Crucifixes: Current Controversies Concerning the Freedom of Religion and the Freedom of Expression before the European Court of Human Rights
Authors: Evans Malcolm D.
Published: February 2016

During the past five years, issues concerning the freedom of religion, and its relationship with the freedom of expression have received an ever higher profile in both the media and in political debate. The purpose of this article is to reflect on the approach taken by the European Court of Human Rights to some of the most significant of these issues. In a short article of this nature it is not possible to examine each of the issues in a comprehensive fashion, but by juxtaposing relatively brief overviews of these cases, some general insights regarding the current mood of the Court and the capacity of the Convention system to engage with ever more pressing issues will emerge. The main challenge appears to be the need to reconcile the Court's emphasis upon neutrality and impartiality, found in its more recent case law concerning state relations with religious associations, with the core value of respect, which has long dominated its approach in other areas. Its failure to address this challenge in an appropriate manner threatens the Court's ability to engage with emerging problems in a satisfactory fashion.