bluuebunny/crossref_metadata_2025 huggingface dataset:
Attachment and psychological well‐being among adolescents with and without disabilities in Kenya: The mediating role of identity formation
Authors: Abubakar Amina , Alonso‐Arbiol Itziar , Van de Vijver Fons J.R. , Murugami Margret , Mazrui Lubna , Arasa Josephine
Published: July 2013

The current study is aimed at evaluating the relationship between attachment and identity development, and their influence on psychological well‐being in adolescents with and without disabilities in Kenya. The sample was composed of 296 adolescents (151 with disabilities and 145 without any disability). The mean age in our sample was 16.84 years (SD = 1.75). Adolescents with disabilities had significantly lower scores in identity formation, paternal attachment, and life satisfaction. A path model indicated that identity formation partially mediated the relationship between secure attachment and psychological well‐being. Our findings indicate that both parent and peer attachment play an important role in the identity formation and psychological well‐being of adolescents in Kenya, irrespective of a disabling condition. A multigroup analysis indicated that while the structure of the relationship between variables held for groups, the pattern and strength of the relationships differed. Implications for practice, especially the guidance and counseling services in schools, are discussed.
Bilateral Distal Femoral Flexion Deformity after Total Knee Arthroplasty in a Patient with Rheumatoid Arthritis
Authors: Jimmy Chan Chun-Ming , Tun-Hing Lui
Published: July 2013

Rheumatoid arthritis is an autoimmune systemic disease with predominant peripheral polyarthritis, often leading to severe joint destruction. This is a case report of an 81-year-old woman with longstanding severe rheumatoid arthritis requiring multiple orthopaedic operations for joint destruction since 2000. These operated joints improved her functional mobility until recently, when she found that her knees were fixed at around 70° of flexion with limited motion. There was chronic progressive flexion deformity of bilateral distal femurs, which was an extremely rare complication of total knee arthroplasty.
Experiments on an elliptic circulation control aerofoil
Authors: Wetzel Drew A. , Griffin John , Cattafesta Louis N.
Published: July 2013

Experiments are performed on an elliptic circulation control aerofoil in an open-jet wind tunnel facility. The influence of blowing from a single trailing-edge slot on the external flow is assessed using two-component particle image velocimetry (PIV) and steady surface pressure measurements. The test section configuration (open jet or closed wall) significantly affects the leading-edge region of the flow field. PIV is also used to measure the curved wall jet and its interaction with the external flow near the trailing edge. PIV measurements of the curved wall jet reveal mean tangential velocity similarity in the outer region of the flow above the location where the tangential velocity reaches a local maximum. The length and velocity parameters required for similarity scale with the product of the chord Reynolds number and the momentum coefficient in accordance with the recent publication by Stalnov, Kribus & Seifert (J. Renew. Sustain. Energy, vol. 2, 2010, p. 063101). The separation location is also a function of the product of these parameters. The dataset is used to assemble equations to predict the similarity length scales, velocity scales and separation location. These equations compare well with the present measurements.
The unifying theory of scaling in thermal convection: the updated prefactors
Authors: Stevens Richard J. A. M. , van der Poel Erwin P. , Grossmann Siegfried , Lohse Detlef
Published: July 2013

The unifying theory of scaling in thermal convection (Grossmann & Lohse, J. Fluid. Mech., vol. 407, 2000, pp. 27–56; henceforth the GL theory) suggests that there are no pure power laws for the Nusselt and Reynolds numbers as function of the Rayleigh and Prandtl numbers in the experimentally accessible parameter regime. In Grossmann & Lohse (Phys. Rev. Lett., vol. 86, 2001, pp. 3316–3319) the dimensionless parameters of the theory were fitted to 155 experimental data points by Ahlers & Xu (Phys. Rev. Lett., vol. 86, 2001, pp. 3320–3323) in the regime $3\times 1{0}^{7} \leq \mathit{Ra}\leq 3\times 1{0}^{9} $ and $4\leq \mathit{Pr}\leq 34$ and Grossmann & Lohse (Phys. Rev. E, vol. 66, 2002, p. 016305) used the experimental data point from Qiu & Tong (Phys. Rev. E, vol. 64, 2001, p. 036304) and the fact that $\mathit{Nu}(\mathit{Ra}, \mathit{Pr})$ is independent of the parameter $a$, which relates the dimensionless kinetic boundary thickness with the square root of the wind Reynolds number, to fix the Reynolds number dependence. Meanwhile the theory is, on the one hand, well-confirmed through various new experiments and numerical simulations; on the other hand, these new data points provide the basis for an updated fit in a much larger parameter space. Here we pick four well-established (and sufficiently distant) $\mathit{Nu}(\mathit{Ra}, \mathit{Pr})$ data points and show that the resulting $\mathit{Nu}(\mathit{Ra}, \mathit{Pr})$ function is in agreement with almost all established experimental and numerical data up to the ultimate regime of thermal convection, whose onset also follows from the theory. One extra $\mathit{Re}(\mathit{Ra}, \mathit{Pr})$ data point is used to fix $\mathit{Re}(\mathit{Ra}, \mathit{Pr})$. As $\mathit{Re}$ can depend on the definition and the aspect ratio, the transformation properties of the GL equations are discussed in order to show how the GL coefficients can easily be adapted to new Reynolds number data while keeping $\mathit{Nu}(\mathit{Ra}, \mathit{Pr})$ unchanged.
The drag-adjoint field of a circular cylinder wake at Reynolds numbers 20, 100 and 500
Authors: Wang Qiqi , Gao Jun-Hui
Published: July 2013

This paper analyses the adjoint solution of the Navier–Stokes equation. We focus on flow across a circular cylinder at three Reynolds numbers, ${\mathit{Re}}_{D} = 20, 100$ and $500$. The quantity of interest in the adjoint formulation is the drag on the cylinder. We use classical fluid mechanics approaches to analyse the adjoint solution, which is a vector field similar to a flow field. Production and dissipation of kinetic energy of the adjoint field is discussed. We also derive the evolution of circulation of the adjoint field along a closed material contour. These analytical results are used to explain three numerical solutions of the adjoint equations presented in this paper. The adjoint solution at ${\mathit{Re}}_{D} = 20$, a viscous steady state flow, exhibits a downstream suction and an upstream jet, the opposite of the expected behaviour of a flow field. The adjoint solution at ${\mathit{Re}}_{D} = 100$, a periodic two-dimensional unsteady flow, exhibits periodic, bean-shaped circulation in the near-wake region. The adjoint solution at ${\mathit{Re}}_{D} = 500$, a turbulent three-dimensional unsteady flow, has complex dynamics created by the shear layer in the near wake. The magnitude of the adjoint solution increases exponentially at the rate of the first Lyapunov exponent. These numerical results correlate well with the theoretical analysis presented in this paper.
Wake states and frequency selection of a streamwise oscillating cylinder
Authors: Leontini Justin S. , Lo Jacono David , Thompson Mark C.
Published: July 2013

This paper presents the results of an in-depth study of the flow past a streamwise oscillating cylinder, examining the impact of varying the amplitude and frequency of the oscillation, and the Reynolds number of the incoming flow. These findings are presented in a framework that shows that the relationship between the frequency of vortex shedding ${f}_{s} $ and the amplitude of oscillation ${A}^{\ast } $ is governed by two primary factors: the first is a reduction of ${f}_{s} $ proportional to a series in ${A}^{\ast 2} $ over a wide range of driving frequencies and Reynolds numbers; the second is nonlinear synchronization when this adjusted ${f}_{s} $ is in the vicinity of $N= {(1- {f}_{s} / {f}_{d} )}^{- 1} $, where $N$ is an integer. Typically, the influence of higher-order terms is small, and truncation to the first term of the series (${A}^{\ast 2} $) well represents the overall trend of vortex shedding frequency as a function of amplitude. However, discontinuous steps are overlaid on this trend due to the nonlinear synchronization. When ${f}_{s} $ is normalized by the Strouhal frequency ${f}_{St} $ (the frequency of vortex shedding from an unperturbed cylinder), the rate at which ${f}_{s} / {f}_{St} $ decreases with amplitude, at least for ${f}_{d} / {f}_{St} = 1$, shows a linear dependence on the Reynolds number. For a fixed $\mathit{Re}= 175$, the truncated series shows that the rate of decrease of ${f}_{s} / {f}_{St} $ with amplitude varies as ${(2- {f}_{d} / {f}_{St} )}^{- 1/ 2} $ for $1\leqslant {f}_{d} / {f}_{St} \leqslant 2$, but is essentially independent of ${f}_{d} / {f}_{St} $ for ${f}_{d} / {f}_{St} \lt 1$. These trends of the rate of decrease of ${f}_{s} $ with respect to amplitude are also used to predict the amplitudes of oscillation around which synchronization occurs. These predicted amplitudes are shown to fall in regions of the parameter space where synchronized modes occur. Further, for the case of varying ${f}_{d} / {f}_{St} $, a very reasonable prediction of the amplitude of oscillation required for the onset of synchronization to the mode where ${f}_{s} = 0. 5{f}_{d} $ is given. In a similar manner, amplitudes at which ${f}_{s} = 0$ are calculated, predicting where the natural vortex shedding is completely supplanted by the forcing. These amplitudes are found to coincide approximately with those at which the onset of a symmetric vortex shedding mode is observed. This result is interpreted as meaning that the symmetric shedding mode occurs when the dynamics crosses over from being dominated by the vortex shedding to being dominated by the forcing.
Three-dimensional instability of the flow around a rotating circular cylinder
Authors: Pralits Jan O. , Giannetti Flavio , Brandt Luca
Published: July 2013

The two-dimensional stationary flow past a rotating cylinder is investigated for both two- and three-dimensional perturbations. The instability mechanisms are analysed using linear stability analysis and the complete neutral curve is presented. It is shown that the first bifurcation in the case of the rotating cylinder occurs for stationary three-dimensional perturbations, confirming recent experiments. Interestingly, the critical Reynolds number at high rotation rates is lower than that for the stationary circular cylinder. The spatial characteristics of the disturbance and a qualitative comparison with the results obtained for linear flows suggest that the stationary unstable three-dimensional mode could be of hyperbolic nature.
Relationship between aerodynamic forces, flow structures and wing camber for rotating insect wing planforms
Authors: Harbig R. R. , Sheridan J. , Thompson M. C.
Published: July 2013

Wing deformation is observed during the flight of some insect species; however, the effect of these distorted wing shapes on the leading edge vortex (LEV) is not well understood. In this study, we investigate the effect of one of these deformation parameters, (rigid) wing camber, on the flow structures and aerodynamic forces for insect-like wings, using a numerical model of an altered fruit fly wing revolving at a constant angular velocity. Both positive and negative camber was investigated at Reynolds numbers of 120 and 1500, along with the chordwise location of maximum camber. It was found that negatively cambered wings produce very similar LEV structures to non-cambered wings at both Reynolds numbers, but high positive camber resulted in the formation of multiple streamwise vortices at the higher Reynolds number, which disrupt the development of the main LEV. Despite this, positively cambered wings were found to produce higher lift to drag ratios than flat or negatively cambered wings. It was determined that a region of low pressure near the wing’s leading edge, combined with the curvature of the wing’s upper surface in this region, resulted in a vertical tilting of the net force vector for positively cambered wings, which explains how insects can benefit from wing camber.
Comparison between spatial and temporal wall oscillations in turbulent boundary layer flows
Authors: Skote Martin
Published: July 2013

Direct numerical simulations have been performed to study the drag reduction resulting from spatial oscillations of a segment of the wall under a turbulent boundary layer. The oscillating motion is imposed by utilizing a streamwise modulated spanwise wall forcing. The results are compared with earlier simulations using temporal oscillations with an identical segment and forcing amplitudes, and with a frequency related to the wavelength through a convective velocity. Two different oscillation amplitudes with equal oscillation wavelength have been used, which allows for a direct comparison between a relatively weak and strong forcing of the flow. The weaker forcing results in 25 % drag reduction while the stronger forcing, with twice the amplitude, yields 41 % drag reduction. Comparison with the temporal cases reveals drastically improved energy savings for the spatial oscillation technique, in accordance with earlier channel flow investigations. The streamwise variation of spanwise shear is shown to follow the analytical solution to the laminar Navier–Stokes equations derived under the assumption of constant friction velocity. Furthermore, the spanwise velocity profiles at various phases are compared with the analytical solution, and show very good agreement. The downstream development of the spatial Stokes layer thickness is theoretically estimated to be ${\sim }{x}^{1/ 15} $, in general agreement with the simulation data. The spatial variation of the spanwise Reynolds stress is investigated and compared with the variation in time for the temporal wall forcing cases. The controversy regarding a zero or non-zero production of spanwise Reynolds stress in the temporal case is elucidated. In addition, comparison with the spatial case reveals that a second production term originating from the downstream variation of the spanwise wall velocity has a negative contribution to the production, and hence relates to the larger drag reduction in the case of spatial forcing.
Instability of an inviscid flow between porous cylinders with radial flow
Authors: Ilin Konstantin , Morgulis Andrey
Published: July 2013

The stability of a two-dimensional inviscid flow in an annulus between two permeable cylinders is examined. The basic flow is irrotational, and both radial and azimuthal components of the velocity are non-zero. The direction of the radial flow can be from the inner cylinder to the outer one (the diverging flow) or from the outer cylinder to the inner one (the converging flow). It is shown that, independent of the direction of the radial flow, the basic flow is unstable to small two-dimensional perturbations provided that the ratio of the azimuthal component of the velocity to the radial one is sufficiently large. The instability is oscillatory and persists if the viscosity of the fluid is taken into consideration.
Drop impact on super-wettability-contrast annular patterns
Authors: Kim Seungho , Moon Myoung-Woon , Kim Ho-Young
Published: July 2013

Extreme wetting properties of solids, either superhydrophobic or superhydrophilic, provide versatile methods to achieve unusual liquid deposit morphologies, such as liquid pearls or polygonal films. Here we report the dynamics of liquid drops that impact on solid surfaces where the extreme wetting properties are coupled in such a way that a superhydrophilic annulus is patterned on a superhydrophobic background. The drop that initially spreads on the inner superhydrophobic region is arrested by the hydrophilic annulus. The liquid deposit gets destabilized because of the strong water repellence of the inner region, exhibiting the burst and disengagement of the liquid film. This process leads to the formation of a liquid ring defined by the annulus pattern, which has practical implications in rapid printing of functional liquids. We visualize such drop dynamics with a high-speed camera and characterize their salient features by combining experimental measurements and theoretical considerations.
Engineering social contagions: Optimal network seeding in the presence of homophily
Authors: ARAL SINAN , MUCHNIK LEV , SUNDARARAJAN ARUN
Published: July 2013

We use data on a real, large-scale social network of 27 million individuals interacting daily, together with the day-by-day adoption of a new mobile service product, to inform, build, and analyze data-driven simulations of the effectiveness of seeding (network targeting) strategies under different social conditions. Three main results emerge from our simulations. First, failure to consider homophily creates significant overestimation of the effectiveness of seeding strategies, casting doubt on conclusions drawn by simulation studies that do not model homophily. Second, seeding is constrained by the small fraction of potential influencers that exist in the network. We find that seeding more than 0.2% of the population is wasteful because the gain from their adoption is lower than the gain from their natural adoption (without seeding). Third, seeding is more effective in the presence of greater social influence. Stronger peer influence creates a greater than additive effect when combined with seeding. Our findings call into question some conventional wisdom about these strategies and suggest that their overall effectiveness may be overestimated.
1958 RECONSIDERED: STATE FORMATION AND THE COLD WAR IN THE EARLY POSTCOLONIAL ARAB MIDDLE EAST
Authors: Schayegh Cyrus
Published: July 2013

Using Arabic, English, and French sources, and engaging Middle East and Cold War historians, this article makes a threefold argument. First, in United Arab Republic (UAR)–Syria, Jordan, and Lebanon, the 1958–59 explosion of domestic and regional tensions triggered state-formation surges. Second, these formed one process, which made those states more alike, with state-led socioeconomic planning playing a key role. Third, that process partook of a global Third World trend intersecting with the early Cold War. I draw three conclusions. Although existing scholarly readings that the events of 1958–59 in the Arab Middle East formed a crisis but not an ideological or political watershed are correct, from the viewpoint of state formation this crisis was a milestone. Moreover, UAR–Syria, Jordan, and Lebanon had persisting affinities and shared regional positions—notably, the fact that all were sandwiched between the unstable poles of the Arab state system, Iraq and Egypt—that shaped their individual postindependence histories of state formation. Last, Washington's low-profile involvement in this state-formation surge illustrates how domestic sociopolitics and regional geopolitics—including the UAR's peaking popularity and influence in 1958–59—affected U.S. policy in the Cold War postcolonial world.
BLACK FLAG AT A CROSSROADS: THE KAFR QASIM POLITICAL TRIAL (1957–58)
Authors: Orbach Danny
Published: July 2013

A political trial, according to Steven E. Barkan, is a trial revolving around highly publicized legal controversies. In some cases, such a trial may determine fundamental political questions, exceeding the legal realm, which are in debate inside a given polity. The 1957–58 trial related to the 1956 massacre in Kafr Qasim, Israel certainly belongs to this category. The trial established the doctrine of a “manifestly unlawful order” in Israeli military law, contributed considerably to the reshaping of civil–military relations, and influenced the civic status of the Arab minority in Israel. In this article, using hitherto underexamined primary sources, I argue that the most important contribution of the trial, the doctrine of a “manifestly unlawful order,” was not only a creation of the bench but also a result of a complicated interaction between the actors present in the courtroom: the defendants, their defense lawyers, the prosecutors, and the judges. Above all, the article shows how the bitter struggle between the two main attorneys helped shape the doctrine of a “manifestly unlawful order,” that is, an order that is illegal for a soldier to obey.
Visible Art, Invisible Knowledge
Authors: Berlekamp Persis
Published: July 2013

Kitab Suwar al-Kawakib(The Book of the Forms of the Stars) of ʿAbd al-Rahman b. ʿUmar al-Sufi (d. 986), though based largely on Ptolemy'sAlmagest, included much original material. In the 20th century, its importance for scholars lay mainly in its attestation of the ways Islamicate scholarship built on classical learning. Now we are finding that it also offers fascinating insights into the complex relationship between seeing and knowing in premodern Islamic book culture. Here, I consider that relationship through analysis of the paired images of the constellation Barshawush (Perseus) from the oldest surviving manuscript, copied and likely also illustrated in 1009–1010 by al-Sufi's son.
Ideologizing the Past
Authors: Ruggles D. Fairchild
Published: July 2013

Because the ideological landscape of the present does not match the ideological configurations of the past, the past and present of national monuments often collide in ways that complicate their utility as “patrimony” and “heritage.” In Spain, Islamic monuments such as the Alhambra Palace (built in Granada by Nasrid monarchs in the 13th and 14th centuries) exist in the present as popular tourism sites and points of entry for an imaginative encounter with the Iberian peninsula's Andalusi past. The past evoked is a recognized part of Iberian history and yet, as patrimony, it is simultaneously admired as something that distinguishes Spain from the rest of Europe and resisted as something belonging to an exiled people who left long ago for places like Fez and Istanbul. Under Franco's dictatorship (1947–73), Spain was adamantly Catholic and, despite a small wave of conversions to Islam and the recent immigration of Muslims from northern Africa, it remains predominantly Christian.
Vocal fold paralysis in the presence of thyroid disease: management strategies
Authors: O'Duffy F , Timon C
Published: July 2013

Background:

The presentation of vocal fold palsy with associated goitre has historically been considered to be due to malignancy with recurrent laryngeal nerve involvement.

Method:

In total, 830 consecutive patients who underwent thyroid surgery were reviewed. Patients with vocal fold paralysis and thyroid disease were examined to determine the aetiology of the paralysis.

Results:

Nine patients were identified with new onset vocal fold paralysis prior to thyroid surgery. Six of the patients with recurrent laryngeal nerve paralysis had benign thyroid disease, and for three of the patients the paralysis was secondary to malignancy.

Conclusion:

Recurrent laryngeal nerve paralysis in the presence of thyroid disease is not pathognomonic for malignancy. The current literature may underestimate the association between vocal fold paralysis and benign thyroid disease. The paper also highlights the importance of recurrent laryngeal nerve preservation in patients who present with palsy and thyroid disease; the relief of benign compression often leads to complete recovery of recurrent laryngeal nerve paralysis.
Note on the Occurrence of Sarcocystis in Muscle of Python
Authors: Tiegs O. W.
Published: July 2013

Although Sarcocystis infections are very common in the muscle of mammals, and to a less extent of birds, in reptiles they have oniy rarely been seen. In a list given by Wenyon (1926) only two forms are recorded, namely from the muscles of Africaii geckoes and of the lizard Gongylus. The form here described was found in fairly large numbers in the striated muscle tissue of the Australian carpet snake Python spilotes. For the parasite the name Sarcocystis pythonis is suggested.
‘Les anglicismes polluent la langue française’. Purist attitudes in France and Quebec
Authors: WALSH OLIVIA
Published: July 2013

It is often claimed that France is a particularly purist country; the Académie française is seen to be representative of a purist outlook and popular works such as Étiemble's attack on English influence Parlez vous franglais? (Étiemble, 1964) have served to bolster this view. However, this claim has not been empirically verified. In order to determine whether or not the rhetoric around purism in France matches the reality, we developed a questionnaire to investigate whether or not ordinary speakers of French in France are purist, taking the theoretical framework in George Thomas's Linguistic Purism as a base (Thomas, 1991). This questionnaire was distributed online to a random sample of participants in France. To contextualise the findings, the questionnaire was also distributed to French speakers in Quebec. The results of the study show that, contrary to expectations, the French respondents display only mild purism and the Québécois respondents are more purist in the face of English borrowings (external purism). However, the French respondents are more concerned with the structure or ‘quality’ of the French language itself (internal purism) than their Québécois counterparts. This study also highlights some problems with Thomas's framework, which requires some modification for future research.
VON HAYEK AND ORDOLIBERALISM ON JUSTICE
Authors: WÖRSDÖRFER MANUEL
Published: July 2013

Variations and disparities between von Hayek and Ordoliberalism can be detected on diverse levels: 1. philosophy of science; 2. setting dissimilar priorities; 3. social philosophy; 4. genesis of norms; and, 5. notion of freedom. Therefore, it is possible to make an important distinction within neoliberalism itself, which contains at least two factions: von Hayek’s evolutionary liberalism, and German Ordoliberalism. The following essay not only takes the neoliberal separation of different varieties as granted; it proceeds further. It focuses on the topic of justice and elaborates the (slightly) differing conceptions of justice within neoliberalism. Thus, the specific contribution of the paper is that it adds a sixth dimension of difference (which is highly interconnected with the differing conceptions of genesis of norms). In this paper, I emphasize the (often neglected) subtle differences between von Hayek, Eucken, Röpke, and Rüstow, with special emphasis on their theories of justice. In this regard, I focus not only on Eucken and von Hayek; in addition, I include the concepts of justice developed by Rüstow and Röpke, as well, and, in consequence, broaden the perspective incorporating Eucken as a member of the Freiburg School of Law and Economics, and Rüstow and Röpke as representatives of Ordoliberalism in the wider sense. The paper tackles these topics in three steps. After briefly examining and discussing the existing literature and providing a literature overview on the decade-long debate on von Hayek and Ordoliberalism, I then describe von Hayek’s conception of commutative justice; particularly, justice of rules and procedures (rather than end-state justice). Then, I examine Eucken’s, Rüstow’s, and Röpke’s theories of justice, which consist of a mixture of commutative and distributive justice. Then, I draw a comparison between the ideas of justice developed by Eucken, Röpke, Rüstow, and von Hayek. The essay ends with a summary of my main findings.
PIGOU, KNIGHT, DIMINISHING RETURNS, AND OPTIMAL PIGOUVIAN CONGESTION TOLLS
Authors: McDONALD JOHN F.
Published: July 2013

Arthur Pigou introduced the iconic two-road model in the first edition of The Economics of Welfare (1920), and it has been thought that this model was intended to demonstrate the need for Pigouvian taxes to mitigate traffic congestion. However, Pigou’s intention was to show that efficient output for industries subject to decreasing returns required a tax on output. Pigou was incorrect, but the two-road model (correctly considered) became the starting point for the analysis of traffic congestion in the 1950s. This paper recounts the doctrinal history of decreasing returns industries and the two-road model.
GENTLEMEN PREFER LIQUIDITY: EVIDENCE FROM KEYNES
Authors: RIVOT SYLVIE
Published: July 2013

This paper deals with the concept of liquidity in Keynes’ theoretical and political writings. First of all, liquidity, according to Keynes, is a concept much more comprehensive than commonly held nowadays: for Keynes, liquidity means more than an easy convertibility, a high marketability (land might have been highly liquid in ancient times). In short, an asset is highly liquid when its value is weakly dependent on a change in our long-term state of expectations. In a second step, this reassessment of liquidity is applied to Keynes’ political writings, in particular to monetary policy and also to the ‘buffer-stock’ scheme. On the one hand, our investigation shows that in a context of ‘uncertainty,’ monetary policy basically aims to encourage the private sector to have confidence in long-term expectations. Private wealth owners should accordingly ask for lower and lower ‘liquidity premium.’ On the other hand, Keynes’ ‘buffer stocks’ of commodities are not intended for a direct control of prices. Rather, their proper purpose is to confer more liquidity to commodities; i.e., to transform them to ‘monetary assets.’ All in all, monetary policy and buffer-stocks schemes prove to be two basic rationales of Keynes’ concept of liquidity still worth being investigated—today as before.
PLANT LIFE CYCLE AND AGGREGATE EMPLOYMENT DYNAMICS
Authors: Ouyang Min
Published: July 2013

Past empirical studies have repeatedly found that plant age matters for aggregate employment dynamics. This paper develops a model of plant life cycle to capture this empirical regularity. In the model, plants differ by vintage and by idiosyncratic productivity. The idiosyncratic productivity is not directly observable, but can be learned over time. This setup gives rise to a learning effect and a creative-destruction effect, under which labor flows from plants with low idiosyncratic productivity to those with high idiosyncratic productivity and from old vintages to new vintages. When calibrated to the U.S. manufacturing job flow series, our model of plant life cycle delivers the observed link between plant age and aggregate employment dynamics.
DECOMPOSING U.K. INFLATION EXPECTATIONS USING SURVEY-BASED MEASURES
Authors: Rafiq Sohrab
Published: July 2013

This paper derives a time-varying model to examine the dynamic interdependencies between realized and expected inflation. The results show inflation expectations at the short and long horizon have been uncorrelated over the past three decades, which is consistent with the anchored inflation expectations hypothesis. There is also little evidence that changes in realized inflation have been the result of self-fulfilling variations in the expectations of economic agents. Despite high commodity prices and above-trend inflation, expectations since the financial crisis in 2008 have not become unhinged from fundamentals.
Microstructural Characterization of Long-Period Stacking Ordered Phases in Mg97Zn1Y2 (at.%) Alloy
Authors: Shao Xiaohong , Yang Huajie , De Hosson Jeff T.M. , Ma Xiuliang
Published: July 2013

Transmission electron microscopy characterization of two major long-period stacking ordered (LPSO) phases in Mg–Zn–Y alloy, i.e., 18R- and 14H-LPSO are reported. The space group and atomic-scale microstructures of both compounds were determined using a combination of electron diffraction, convergent beam electron diffraction, high-resolution transmission electron microscopy, and Z-contrast scanning transmission electron microscopy. The 18R-LPSO phase is demonstrated to have a point group and space group 3m and R3m (or 3m and R3m), with the lattice parameter a = 1.112 nm and c = 4.689 nm in a hexagonal coordinate system. The 14H-LPSO phase has a point group 6/mmm and a space group P63 /mmc, and the lattice parameter is a = 1.112 nm and c = 3.647 nm. In addition, insertion of extra thin Mg platelets of several atomic layers, results in stacking faults in the LPSO phase. These results may shed some new light on a better understanding of the microstructure and deformation mechanisms of LPSO phases in Mg alloys.
Legalise it! The rising place of law in French sociology
Authors: Israël Liora
Published: July 2013

By highlighting a large number of recent studies mainly based on empirical methods, the aim of this paper is to emphasise and illustrate the rising influence of legal sociology in France today, and the interesting results produced. More generally, it is noteworthy to emphasise the growing importance of law and legal domains as a topic of great interest in French social sciences in general. It remains an open question whether this trend is linked to the ‘judicialisation’ of French politics and society and its influence over the academic field, or, alternatively, to the growing capacity of social scientists to resist the monopolistic claim of French academic lawyers on the analysis of legal subjects and to develop their own. Nevertheless, those trends converge towards a better knowledge of French legality, relevant from a national perspective, as well as to assess its contribution to socio-legal knowledge in general.
Morality and the market: containing the beast
Authors: Saprai Prince
Published: July 2013

In his latest book, the renowned political philosopher Michael Sandel asks what has become a pressing question for our age: Is there anything money can't buy? Sandel shows that there are certainly very few. If you've got the money, you can: hunt and kill endangered species like the black rhino; have 24/7 access to a doctor; give your child an elite education; gain a right to pollute the atmosphere; get people to stand in queues for you; place a bet that a particular celebrity will die next year; gain the life insurance policies of people who are seriously ill in the hope of cashing in when they die; and you can even get someone to make an apology on your behalf.
Re-envisioning the local: spatiality, land and law in Botswana
Authors: Griffiths Anne
Published: July 2013

Based on an ethnographic study located in Botswana, I move beyond conceptions of the local as physically or territorially grounded to one that examines how it is constituted through links between persons and land derived from life histories extended over several generations. This not only takes account of a specific site in which social relations are bounded and locally constituted but also of how perceptions of locality are discursively and historically constructed. Viewing land as both a tangible and intangible universe constructed through social relationships, I highlight ways in which individuals, as part of a ‘local’ community, find their life courses shaped by wider transnational and global processes, including law, that have an impact on their everyday lives. For some, this provides opportunities for upward mobility and future gains, while others find scope for action severely curtailed. In documenting these uneven, diverse effects of globalisation, what emerges are processes of ‘internalisation’ and ‘relocalisation’ of global conditions, allowing for the emergence of new identities, alliances and struggles for space and power within specific populations. Thus what exists in the here and now as a form of temporality is constantly remade, drawing on the past while fashioning new prospects for the future.
The city of law
Authors: Campbell Kirsten
Published: July 2013

There is now a well-established ‘spatial turn in law’. However, it remains oriented towards notions of space rather than law. How, then, to capture both the spatiality of law and the legality of space? This article draws on Bruno Latour's concept of the legal construction of the ‘social’ to explore the assemblage of the city of law. It shows how law functions as a particular form of association in urban life by tracing two key forms of urban legal association in London, the city of law. The first form is ‘legal ordering’. This seeks to order urban life through domination, and includes citadel law, police law and laws of exception. The second is ‘legal consociations’, which build new forms of urban life, such as urban rights, the rights of the city and the right to the city. Finally, the article explores the creation of a spatial justice that can build more just legal associations.
Managing Religion and Renegotiating the Secular: The Muslim Brotherhood and Defining the Religious Sphere
Authors: Scott Rachel M.
Published: July 2013

This article questions the assumption that — prior to July 2013 when the Egyptian military removed former President Mursi from power — the Muslim Brotherhood was in the process of implementing an Islamic state that would have involved a reversal of secularization and an upheaval to the status quo in terms of fundamental shifts in institutions and legal categories. Rather, the article argues that the Muslim Brotherhood evolved to embrace secularism of a certain sort-a statism in which it is the state that determines the boundaries of religion and politics. It illustrates this by looking at the role the Muslim Brotherhood envisaged for the Supreme Constitutional Court — and how this relates to the religious scholars of al-Azhar — in the formulation of legislation and in the assessment of whether legislation conforms to Article 2 of the constitution, both the 1971 one and the 2012 one, which was suspended in July 2013. In addition, the article will show how the Muslim Brotherhood has defined the public order with a particular focus on the idea of the Islamic “framework,” the rights of non-Muslim minorities, and personal status law.
Same Battle, Different War: Religious Movements in American State Politics
Authors: Conger Kimberly H.
Published: July 2013

The Christian Right is a long-standing social movement with a reputation for mobilization and activism at all levels of American politics. The Christian Progressive movement is a manifestation of religiously motivated political activity largely opposed to the policy goals of the Christian Right. Some have questioned, however, whether Christian Progressives have the internal cohesion to mobilize voters, activists, and movement organizations toward their policy goals. In this article, I update an existing measure of Christian Right influence and introduce a parallel measure for Christian Progressives. Analyses of these indices show that the Christian Progressive movement is visible and active in many states, though not the engine of influence that the Christian Right remains.
The Gender Typicality of Faces and Its Impact on Visual Processing and on Hiring Decisions
Authors: von Stockhausen Lisa , Koeser Sara , Sczesny Sabine
Published: July 2013

Past research has shown that the gender typicality of applicants’ faces affects leadership selection irrespective of a candidate’s gender: A masculine facial appearance is congruent with masculine-typed leadership roles, thus masculine-looking applicants are hired more certainly than feminine-looking ones. In the present study, we extended this line of research by investigating hiring decisions for both masculine- and feminine-typed professional roles. Furthermore, we used eye tracking to examine the visual exploration of applicants’ portraits. Our results indicate that masculine-looking applicants were favored for the masculine-typed role (leader) and feminine-looking applicants for the feminine-typed role (team member). Eye movement patterns showed that information about gender category and facial appearance was integrated during first fixations of the portraits. Hiring decisions, however, were not based on this initial analysis, but occurred at a second stage, when the portrait was viewed in the context of considering the applicant for a specific job.
To Do It or to Let an Automatic Tool Do It?
Authors: Osiurak François , Wagner Clara , Djerbi Sara , Navarro Jordan
Published: July 2013

The aim of the present study is to provide experimental data relevant to the issue of what leads humans to use automatic tools. Two answers can be offered. The first is that humans strive to minimize physical and/or cognitive effort (principle of least effort). The second is that humans tend to keep their perceived control over the environment (principle of more control). These two factors certainly play a role, but the question raised here is to what do people give priority in situations wherein both manual and automatic actions take the same time – minimizing effort or keeping perceived control? To answer that question, we built four experiments in which participants were confronted with a recurring choice between performing a task manually (physical effort) or in a semi-automatic way (cognitive effort) versus using an automatic tool that completes the task for them (no effort). In this latter condition, participants were required to follow the progression of the automatic tool step by step. Our results showed that participants favored the manual or semi-automatic condition over the automatic condition. However, when they were offered the opportunity to perform recreational tasks in parallel, the shift toward manual condition disappeared. The findings give support to the idea that people give priority to keeping control over minimizing effort.
Haunted by a Doppelgänger
Authors: von Helversen Bettina , Herzog Stefan M. , Rieskamp Jörg
Published: July 2013

Judging other people is a common and important task. Every day professionals make decisions that affect the lives of other people when they diagnose medical conditions, grant parole, or hire new employees. To prevent discrimination, professional standards require that decision makers render accurate and unbiased judgments solely based on relevant information. Facial similarity to previously encountered persons can be a potential source of bias. Psychological research suggests that people only rely on similarity-based judgment strategies if the provided information does not allow them to make accurate rule-based judgments. Our study shows, however, that facial similarity to previously encountered persons influences judgment even in situations in which relevant information is available for making accurate rule-based judgments and where similarity is irrelevant for the task and relying on similarity is detrimental. In two experiments in an employment context we show that applicants who looked similar to high-performing former employees were judged as more suitable than applicants who looked similar to low-performing former employees. This similarity effect was found despite the fact that the participants used the relevant résumé information about the applicants by following a rule-based judgment strategy. These findings suggest that similarity-based and rule-based processes simultaneously underlie human judgment.
Male soldiers are functional in the Japanese strain of a polyembryonic wasp
Authors: Uka Daisuke , Takahashi-Nakaguchi Azusa , Yoshimura Jin , Iwabuchi Kikuo
Published: July 2013

Polyembryonic parasitoids clonally produce sterile soldier larvae in both sexes. Female soldier larvae ofCopidosoma floridanumdefend their siblings and host resources against heterospecific competitors as well as conspecific male embryos that results in female biased sex ratios. However, the male soldiers of the USA strain exhibit no aggressive behaviors against them, suspected to be a secondary loss of male defense function in the course of evolution. From vitro and vivo experiments, we have found functional male soldiers in the Japanese strain ofC. floridanum. In vitro experiments, male soldiers exhibit aggressions against four larval competitors, though aggressiveness is much weaker than that of female soldiers. In vivo experiments, heterospecific competitors are equivocally excluded in both male and female broods. Our findings support the idea that male soldiers have evolved primarily to defend against heterospecific competitors. Further experiments against conspecific embryos may be able to confirm this hypothesis.
Mining the bacterial unknown proteome: identification and characterization of a novel family of highly conserved protective antigens in Staphylococcus aureus
Authors: Schluepen Christina , Malito Enrico , Marongiu Ambra , Schirle Markus , McWhinnie Elisabeth , Lo Surdo Paola , Biancucci Marco , Falugi Fabiana , Nardi-Dei Vincenzo , Marchi Sara , Fontana Maria Rita , Lombardi Benedetta , De Falco Maria Grazia , Rinaudo C. Daniela , Spraggon Glen , Nissum Mikkel , Bagnoli Fabio , Grandi Guido , Bottomley Matthew J. , Liberatori Sabrina
Published: July 2013

In the human pathogen Staphylococcus aureus, there exists an enormous diversity of proteins containing DUFs (domains of unknown function). In the present study, we characterized the family of conserved staphylococcal antigens (Csa) classified as DUF576 and taxonomically restricted to Staphylococci. The 18 Csa paralogues in S. aureus Newman are highly similar at the sequence level, yet were found to be expressed in multiple cellular locations. Extracellular Csa1A was shown to be post-translationally processed and released. Molecular interaction studies revealed that Csa1A interacts with other Csa paralogues, suggesting that these proteins are involved in the same cellular process. The structures of Csa1A and Csa1B were determined by X-ray crystallography, unveiling a peculiar structure with limited structural similarity to other known proteins. Our results provide the first detailed biological characterization of this family and confirm the uniqueness of this family also at the structural level. We also provide evidence that Csa family members elicit protective immunity in in vivo animal models of staphylococcal infections, indicating a possible important role for these proteins in S. aureus biology and pathogenesis. These findings identify the Csa family as new potential vaccine candidates, and underline the importance of mining the bacterial unknown proteome to identify new targets for preventive vaccines.
Broadband circularly polarised square slot antenna fed by coplanar waveguide
Authors: Liu Y.W. , Hsu P.
Published: July 2013

A broadband circularly polarised square slot antenna fed by a coplanar waveguide (CPW) from a corner of the slot is proposed. A check‐shaped strip with its vertex connected to the protruded signal strip of the CPW is used to achieve circular polarisation. The measured 3 and 1 dB axial ratio bandwidths are 48 and 21.3%, respectively, and the input impedance bandwidth (|S11| ≤ − 10 dB) is 73.9%, which covers the entire circular polarisation band.
AC–DC converter using VGS‐multiplier circuit for LED lighting applications
Authors: Park C. , Jang K. , Woo S. , Yu H. , Lee J. , Choi J.
Published: July 2013

A floating‐voltage DC source is proposed for simple AC–DC conversion. A conventional VGS‐multiplier circuit is modified with an additional control current signal in order to achieve variable output voltage. By modulating this control signal, the output voltage can track the input one so that the difference between the input and output voltages can be maintained to be constant with respect to varying the rectified input voltage. The proposed circuit is easily adopted for driving a light‐emitting diode (LED) string, which provides a cost‐effective solution for LED lighting applications.
Directional Zernike moments for rotation‐free recognition of online sketched symbols
Authors: Zhang Yougen , Wu Lingda , Song Hanchen
Published: July 2013

A new description method is proposed for sketched symbol recognition. It incorporates local direction information into the Zernike moments which represent only the spatial distribution of sample points. A symbol is decomposed into several component patterns according to the local direction of sample points before Zernike moments computation. The resulting descriptor inherits from the traditional Zernike moments descriptor the invariability to stroke number, stroke order and symbol rotation. Moreover, the fusion of both types of data makes it more informative and discriminative, resulting in better performances in both rotation‐invariant classification and rotation angle estimation.