bluuebunny/crossref_metadata_2025_split huggingface dataset:
Model predictive controller–based spatiotemporal path tracking method for transhumeral prostheses
Authors: Dannangoda Gamage Kanishka Madusanka , Gopura R.A. Ruwan C. , Amarasinghe Y.W. Ranjith , Mann George K.I. 
Published: December 2018

AbstractBackgroundTranshumeral prostheses are worn by transhumeral amputees to replace the missing upper limb segment between shoulder and elbow. Prostheses should be able to function as a natural limb for the user to gain the full advantage of wearing a prosthesis. When performing reach‐to‐grasp and pointing motions by the upper limb, the hand is capable of adhering to a straight‐line path with a bell‐shaped velocity profile.AimAim was to develop a dynamic path‐tracking method for transhumeral prostheses to gain the capability of adhering to a straight‐line path.MethodProposed method uses model predictive controller (MPC) developed based on the kinematic model of the prosthesis. Moreover, a shoulder matcher is proposed to match actual shoulder pose with the predicted shoulder pose and to select the best joint angles for the prosthesis for a particular instance. Furthermore, the proposed method is capable of dynamically updating the path if the human performs shoulder motions, which are not as planned by the MPC.ResultsSeveral experiments are conducted to validate the proposed method. The proposed method is capable of taking a straight‐line path similar to a natural human.ConclusionThis paper proposed a dynamic path‐tracking method based on a model predictive controller. The proposed method is capable of taking the prosthetic hand on a straight‐line path, which is similar to a path taken by a natural human hand.
In Situ Generation of Copper Nanoparticles by Rongalite and Their Use as Catalyst for Click Chemistry in Water
Authors: Poshala Soumya , Thunga Sanjeeva , Manchala Saikumar , Kokatla Hari Prasad 
Published: December 2018

AbstractA novel, efficient and green protocol for the copper‐catalyzed azide–alkyne cycloaddition (CuAAC) reaction by using copper nanoparticles (CuNPs), generated in situ by a green reducing agent, rongalite, is reported. Terminal alkynes reacted with benzyl, aryl and alkyl azides in the presence of copper nanoparticles and β ‐cyclodextrin (β‐CD) in water. The reactions exclusively generated the corresponding regiospecific 1,4‐disubstituted 1,2,3‐triazoles in good to excellent yields. Notably, in situ generation of copper nanoparticles does not require any additional stabilizing agents or special reaction conditions. β‐cyclodextrin plays dual role as a stabilizing agent as well as phase transfer catalyst. This protocol is also applicable for gram scale reactions.
Three‐Dimensional Metal‐Organic Polymer of Multivalent Hexaphenylbenzene
Authors: Madhu Suresh , Gonnade Rajesh G. , Sanjayan Gangadhar J. 
Published: December 2018

AbstractMetal‐Organic Frameworks(MOFs) synthesized from ligands more than ten co‐ordinating sites may offer material applications due to their structural architecture. Herein, a synthesis of metal‐organic framework is reported from a ligand featuring 12‐aryl carboxylic acid groups appended on a hexaphenylbenzene and s‐block element potassium. The synthesized MOF was characterized by thermogravimetric analysis, infrared spectroscopy and X‐diffraction studies. The X‐ray crystal structure of MOF was shown to have a significant number of trapped and coordinated water molecules in its three‐dimensional framework.
Asymmetric Addition of Propargylic Silanes to Aldehydes Catalyzed by Chiral Phosphine‐Silver Alkoxide Complex
Authors: Yanagisawa Akira , Bamba Kentaro , Kawada Aiko 
Published: December 2018

AbstractA catalytic asymmetric addition of propargylic silanes to aldehydes was achieved using a DM‐BINAP⋅AgBF4 complex as the chiral pre‐catalyst and triethylamine as the base pre‐catalyst in the presence of potassium fluoride and methanol. Optically active homoallenylic alcohols and homopropargylic alcohols were obtained in moderate to high combined yields via the in situ generated chiral organosilver species. Allenylated alcohols were formed predominantly with up to 95% ee.
Tailorable and Flexible Conducting Films via Interfacial Modification of Polymer Fibers
Authors: Ding Baojun , Wei Siqi , Zhu Huichao , Tao Shengyang 
Published: December 2018

AbstractPortable devices have become lightweight, flexible, and even stretchable such that skin‐like electronics are widely applicable, including in biomedical devices, soft robotics, and human/machine interfaces. Rendering these devices soft and flexible is highly desirable, as this would enable them to interact seamlessly with human skin and improve their wearing comfort. We demonstrate a convenient but effective method to fabricate flexible conducting films. These films consist of electrospun polyurethane (PU) fibers as the flexible substrate onto which copper was deposited. These Cu‐PU films have excellent conductivity, and their resistance only increases slightly after extensive folding, even when folded into a paper crane with a resistance of 1.8 Ω. Furthermore, Cu‐PU films can sense tension strength and exhibit stable Joule electrothermal performance. The Cu‐PU‐based heating glove could be heated to 40 °C in 30 s by applying 2 V. The simple but effective procedure presented here is suitable to fabricate flexible conducting film and may also promote the development of portable and flexible electronic products.
Single‐Particle Tracking Reveals the Sequential Entry Process of the Bunyavirus Severe Fever with Thrombocytopenia Syndrome Virus
Authors: Liu Jia , Xu Mingyue , Tang Bo , Hu Liangbo , Deng Fei , Wang Hualin , Pang Dai‐Wen , Hu Zhihong , Wang Manli , Zhou Yiwu 
Published: December 2018

AbstractThe Bunyavirales is one of the largest groups of RNA viruses, which encompasses many strains that are highly pathogenic to animals and humans. Severe fever with thrombocytopenia syndrome virus (SFTSV) is an emerging tick‐borne bunyavirus that causes severe disease in humans, with a high fatality rate of up to 30%. To date, the entry process of bunyavirus infection remains obscure. Here, using quantum dot (QD)‐based single‐particle tracking and multicolor imaging, the dynamic molecular process of SFTSV entry and penetration is systematically dissected. The results show that internalization of SFTSV into host cells is initiated by recruiting clathrin onto the cell membrane for the formation of clathrin‐coated pits and further pinching off from the plasma membrane to form discrete vesicles. These vesicular carriers further deliver virions to Rab5+ early endosomes, and then to Rab7+ late endosomes. The intracellular transport of virion‐carrying endocytic vesicles is dependent first on actin filaments at the cell periphery, and then on microtubules toward the cell interior. The final fusion events occur at ≈15–60 min post‐entry, and are triggered by the acidic environment at ≈pH5.6 within the late endosomes. These results reveal the multistep SFTSV entry process and the dynamic virus–host interactions involved.
World War Two and Nazi Forays into the Killing of Civilians
Authors: Russell Nestar 
Published: December 2018

AbstractBetween 1939 and mid-1941, as Himmler and Heydrich debated where to send Jews and other conquered peoples, events of central importance to the Nazi’s subsequent attempt to exterminate European Jewry took place. That is, between these dates largely moderately antisemitic Germans started demonstrating an uncanny ability to kill fairly large numbers of defenseless civilians using what became by the war’s end the three most common killing methods: shooting (the Polish intelligentsia), starvation (of the Polish Jews), and gassing (those with disabilities). With the repeated failure of Himmler and Heydrich’s apparently more “realistic” policy of emigration, Russell argues that in light of the above killings, the SS leadership then envisioned potential in the radical and initially dismissed idea of exterminating the Jews. Furthermore, the up-and-coming invasion of the Soviet Union provided them with an excellent opportunity to test the feasibility of this new and radical solution.
Performance demonstration of the PEnELOPE main amplifier HEPA I using broadband nanosecond pulses
Authors: Albach D. , Loeser M. , Siebold M. , Schramm U. 
Published: December 2018

We report on the energetic and beam quality performance of the second to the last main amplifier section HEPA I of the PEnELOPE laser project. A polarization coupled double-12-pass scheme to verify the full amplification capacity of the last two amplifiers HEPA I and II was used. The small signal gain for a narrow-band continuous wave laser was 900 and 527 for a broadband nanosecond pulse, demonstrating 12.6 J of output pulse energy. Those pulses, being spectrally wide enough to support equivalent 150 fs long ultrashort pulses, are shown with an excellent spatial beam quality. A first active correction of the wavefront using a deformable mirror resulted in a Strehl ratio of 76% in the single-12-pass configuration for HEPA I.
‘The Cat’s Paw’: Helen Arthur, the act of resumption andThe Popish pretenders to the forfeited estates in Ireland, 1700–03
Authors: Nolan Frances 
Published: December 2018

AbstractThis article examines the case of Helen Arthur, a Catholic and Jacobite Irish woman who travelled with her children to France following William III’s victory over James II in the War of the Two Kings (1689–91). It considers Helen’s circumstances and her representation inThe Popish pretenders to the forfeited estates in Ireland, a pamphlet published in London in 1702 as a criticism of the act of resumption. The act, introduced by the English parliament in 1700, voided the majority of William III’s grants to favourites and supporters. Its provisions offered many dispossessed, including the dependants of outlawed males, a chance to reclaim compromised or forfeited property by submitting a claim to a board of trustees in Dublin. Helen Arthur missed the initial deadline for submissions, but secured an extension to submit through a clause in a 1701 supply bill, a development that brought her to the attention of the anonymous author ofThe Popish pretenders. Charting Helen’s efforts to reclaim her jointure, her eldest son’s estate and her younger children’s portions, this article looks at the ways in which dispossessed Irish Catholics and/or Jacobites reacted to legislative developments. More specifically, it shines a light on the possibilities for female agency in a period of significant upheaval, demonstrating opportunities for participation and representation in the public sphere, both in London and in Dublin. It also considers the impact of the politicisation of religion upon understandings of women’s roles and experiences during the Williamite confiscation, and suggests that a synonymising of Catholicism with Jacobitism (and Protestantism with the Williamite cause) has significant repercussions for understandings of women’s activities during the period. It also examines contemporary attitudes to women’s activity, interrogating the casting of Helen as a ‘cat’s paw’ in a bigger political game, invariably played by men.
On the dispersion of a drug delivered intrathecally in the spinal canal
Authors: Lawrence J. J. , Coenen W. , Sánchez A. L. , Pawlak G. , Martínez-Bazán C. , Haughton V. , Lasheras J. C. 
Published: December 2018

This paper investigates the transport of a solute carried by the cerebrospinal fluid (CSF) in the spinal canal. The analysis is motivated by the need for a better understanding of drug dispersion in connection with intrathecal drug delivery (ITDD), a medical procedure used for treatment of some cancers, infections and pain, involving the delivery of the drug to the central nervous system by direct injection into the CSF via the lumbar route. The description accounts for the CSF motion in the spinal canal, described in our recent publication (Sánchez et al., J. Fluid Mech., vol. 841, 2018, pp. 203–227). The Eulerian velocity field includes an oscillatory component with angular frequency $\unicode[STIX]{x1D714}$, equal to that of the cardiac cycle, and associated tidal volumes that are a factor $\unicode[STIX]{x1D700}\ll 1$ smaller than the total CSF volume in the spinal canal, with the small velocity corrections resulting from convective acceleration providing a steady-streaming component with characteristic residence times of order $\unicode[STIX]{x1D700}^{-2}\unicode[STIX]{x1D714}^{-1}\gg \unicode[STIX]{x1D714}^{-1}$. An asymptotic analysis for $\unicode[STIX]{x1D700}\ll 1$ accounting for the two time scales $\unicode[STIX]{x1D714}^{-1}$ and $\unicode[STIX]{x1D700}^{-2}\unicode[STIX]{x1D714}^{-1}$ is used to investigate the prevailing drug-dispersion mechanisms and their dependence on the solute diffusivity, measured by the Schmidt number $S$. Convective transport driven by the time-averaged Lagrangian velocity, obtained as the sum of the Eulerian steady-streaming velocity and the Stokes-drift velocity associated with the non-uniform pulsating flow, is found to be important for all values of $S$. By way of contrast, shear-enhanced Taylor dispersion, which is important for values of $S$ of order unity, is shown to be negligibly small for the large values $S\sim \unicode[STIX]{x1D700}^{-2}\gg 1$ corresponding to the molecular diffusivities of all ITDD drugs. Results for a model geometry indicate that a simplified equation derived in the intermediate limit $1\ll S\ll \unicode[STIX]{x1D700}^{-2}$ provides sufficient accuracy under most conditions, and therefore could constitute an attractive reduced model for future quantitative analyses of drug dispersion in the spinal canal. The results can be used to quantify dependences of the drug-dispersion rate on the frequency and amplitude of the pulsation of the intracranial pressure, the compliance and specific geometry of the spinal canal and the molecular diffusivity of the drug.
Developing shared leadership in a public organisation: Processes, paradoxes and consequences
Authors: Zeier Katie , Plimmer Geoff , Franken Esme 
Published: December 2018

AbstractMuch organisational decision-making is embedded in hierarchical structures and leadership, even though hierarchies are limited in how they deal with increasingly complex issues. This paper explores links between identity formation, and the subsequent development of shared leadership. It explores how a programme to develop shared leadership changed a public science organisation, from one dependent on hierarchical leadership, to one that also used shared leadership to better address the complex public context. Using Day and Harrison’s levels of leadership identity framework, this study first examines the processes of a development programme at individual, relational, and collective levels. Results reveal cascading growth in leadership identities through processes such as job crafting and contagion. Despite the resulting positive processes, inherent paradoxes of power, goals, and attitude underlying shared leadership development are also identified. Within these paradoxes, tensions between vertical hierarchy versus dispersed networks, task performance versus job crafting, fatigue versus revitalisation, and cynicism versus evangelism were found.
Campanian and Maastrichtian hippuritid rudists (Hippuritida, Bivalvia) of the Chiapas Central Depression (southern Mexico) and implications for American multiple-fold hippuritid taxonomy
Authors: Pons Jose Maria , Vicens Enric , García-Barrera Pedro 
Published: December 2018

AbstractHippuritids, particularly those with multiple-folds, are one of the most characteristic components in uppermost Cretaceous rudist-bearing strata of the Caribbean Province. The hippuritid rudist fauna of the Chiapas Central Depression includes the following taxa:Vaccinites vermuntiMac Gillavry, 1937 andBarrettiacf.B. ruseaeChubb, 1967 from the early Campanian Suchiapa Formation;B. moniliferaWoodward, 1862,B. gigasChubb, 1955, andParastroma trechmanniChubb, 1967 from the mid Campanian Suchiapa Formation; andPraebarrettia sparcilirata(Whitfield, 1897) from the early Maastrichtian Ocozocoautla Formation. These six species are described herein in detail. New observations on the outer shell layer structure of the right valve and the pore-canal system of the left valve led to amending the diagnoses of the g|eneraBarrettiaWoodward, 1862,ParastromaDouvillé, 1926, andPraebarrettiaTrechmann, 1924. Also, the revision of Chiapas’ and other American species of multiple-fold hippuritids led to proposed changes in their generic adscription.
A dish served cold: targeting revenge in revenge pornography
Authors: Dymock Alex , van der Westhuizen Charlotte 
Published: December 2018

AbstractThe introduction of s 33 of the Criminal Justice and Courts Act 2015, criminalising the disclosure of private sexual images, has been seen as a welcome step forward for curbing this abuse of privacy and the harmful effects it has on victims. However, while s 33 sidesteps any reference to ‘revenge pornography’, as the phenomenon has been termed in popular vernacular, little attention has been paid to the way in which narratives of revenge implicitly underpin and imbue the new offence, particularly its specific intent requirement. We argue this has serious implications for the treatment of s 33 offences in the courts and for sentencing. Drawing on cross-disciplinary conceptualisations of revenge, its recent criminal-legal history, and examples of media and parliamentary rhetoric, we claim that despite innumerable attempts to turn debate on disclosure of private sexual images towards consent, harm and privacy, there lurks within these discourses an assumption that the victim must have done something to deserve the treatment she received. Until the multiple harms of disclosure of private sexual images are recognised and explicit recommendations are made that scrutiny of victims’ behaviour should normally be inadmissible, we argue that the offence offers little in the way of redress.
On the boundary regularity of phase-fields for Willmore's energy
Authors: Dondl Patrick W. , Wojtowytsch Stephan 
Published: December 2018

AbstractWe demonstrate that Radon measures which arise as the limit of the Modica-Mortola measures associated with phase-fields with uniformly bounded diffuse area and Willmore energy may be singular at the boundary of a domain and discuss implications for practical applications. We furthermore give partial regularity results for the phase-fieldsuεat the boundary in terms of boundary conditions and counterexamples without boundary conditions.
Regularity of the extremal solutions associated with elliptic systems
Authors: Aghajani A. , Cowan C. 
Published: December 2018

AbstractWe examine the elliptic system given by$$\left\{ {\matrix{ {-\Delta u = \lambda f(v)} \hfill &amp; {{\rm in }\,\,\Omega ,} \hfill \cr {-\Delta v = \gamma f(u)} \hfill &amp; {{\rm in }\,\,\Omega ,} \hfill \cr {u = v = 0} \hfill &amp; {{\rm on }\,\,\partial \Omega ,} \hfill \cr } } \right.$$where λ, γ are positive parameters, Ω is a smooth bounded domain in ℝNandfis aC2positive, nondecreasing and convex function in [0, ∞) such thatf(t)/t→ ∞ ast→ ∞. Assuming$$0 < \tau _-: = \mathop {\lim \inf }\limits_{t\to \infty } \displaystyle{{f(t){f}^{\prime \prime}(t)} \over {{f}^{\prime}{(t)}^2}} \les \tau _ + : = \mathop {\lim \sup }\limits_{t\to \infty } \displaystyle{{f(t){f}^{\prime \prime}(t)} \over {{f}^{\prime}{(t)}^2}} \les 2,$$we show that the extremal solution (u*,v*) associated with the above system is smooth provided thatN&lt; (2α*(2 − τ+) + 2τ+)/(τ+)max{1, τ+}, where α*&gt; 1 denotes the largest root of the second-order polynomial$$[P_{f}(\alpha,\tau_{-},\tau_{+}):=(2-\tau_{-})^{2} \alpha^{2}- 4(2-\tau_{+})\alpha+4(1-\tau_{+}).]$$As a consequence,u*,v* ∈L∞(Ω) forN&lt; 5. Moreover, if τ−= τ+, thenu*,v* ∈L∞(Ω) forN&lt; 10.
Multi-peak positive solutions to a class of Kirchhoff equations
Authors: Luo Peng , Peng Shuangjie , Wang Chunhua , Xiang Chang-Lin 
Published: December 2018

In the present paper, we consider the nonlocal Kirchhoff problem$$-\left(\epsilon^2a+\epsilon b\int_{{\open R}^{3}}\vert \nabla u \vert^{2}\right)\Delta u+V(x)u=u^{p}, \quad u \gt 0 \quad {\rm in} {\open R}^{3},$$
where a, b&gt;0, 1&lt;p&lt;5 are constants, ϵ&gt;0 is a parameter. Under some mild assumptions on the function V, we obtain multi-peak solutions for ϵ sufficiently small by Lyapunov–Schmidt reduction method. Even though many results on single peak solutions to singularly perturbed Kirchhoff problems have been derived in the literature by various methods, there exist no results on multi-peak solutions before this paper, due to some difficulties caused by the nonlocal term $\left(\int_{{\open R}^{3}} \vert \nabla u \vert^{2}\right)\Delta u$. A remarkable new feature of this problem is that the corresponding unperturbed problem turns out to be a system of partial differential equations, but not a single Kirchhoff equation, which is quite different from most of the elliptic singular perturbation problems.
Morse index and symmetry for elliptic problems with nonlinear mixed boundary conditions
Authors: Damascelli Lucio , Pacella Filomena 
Published: December 2018

AbstractWe consider an elliptic problem of the type
$$\left\{ {\matrix{ {-\Delta u = f(x,u)\quad } \hfill & {{\rm in}\,\Omega } \hfill \cr {u = 0} \hfill & {{\rm on}\,\Gamma _1} \hfill \cr {\displaystyle{{\partial u} \over {\partial \nu }} = g(x,u)} \hfill & {{\rm on}\,\Gamma _2} \hfill \cr } } \right.$$ where Ω is a bounded Lipschitz domain in ℝN with a cylindrical symmetry, ν stands for the outer normal and $\partial \Omega = \overline {\Gamma _1} \cup \overline {\Gamma _2} $.Under a Morse index condition, we prove cylindrical symmetry results for solutions of the above problem.As an intermediate step, we relate the Morse index of a solution of the nonlinear problem to the eigenvalues of the following linear eigenvalue problem
$$\left\{ {\matrix{ {-\Delta w_j + c(x)w_j = \lambda _jw_j} \hfill & {{\rm in }\Omega } \hfill \cr {w_j = 0} \hfill & {{\rm on }\Gamma _1} \hfill \cr {\displaystyle{{\partial w_j} \over {\partial \nu }} + d(x)w_j = \lambda _jw_j} \hfill & {{\rm on }\Gamma _2} \hfill \cr } } \right.$$ For this one, we construct sequences of eigenvalues and provide variational characterization of them, following the usual approach for the Dirichlet case, but working in the product Hilbert space L2 (Ω) × L2(Γ2).
Existence of normalized solutions for nonlinear fractional Schrödinger equations with trapping potentials
Authors: Du Miao , Tian Lixin , Wang Jun , Zhang Fubao 
Published: December 2018

AbstractIn this paper, we study the existence, nonexistence and mass concentration of L2-normalized solutions for nonlinear fractional Schrödinger equations. Comparingwith the Schrödinger equation, we encounter some new challenges due to the nonlocal nature of the fractional Laplacian. We first prove that the optimal embedding constant for the fractional Gagliardo–Nirenberg–Sobolev inequality can be expressed by exact form, which improves the results of [17, 18]. By doing this, we then establish the existence and nonexistence of L2-normalized solutions for this equation. Finally, under a certain type of trapping potentials, by using some delicate energy estimates we present a detailed analysis of the concentration behavior of L2-normalized solutions in the mass critical case.
Mean values of derivatives of L-functions in function fields: III
Authors: Andrade Julio 
Published: December 2018

AbstractIn this series of papers, we explore moments of derivatives of L-functions in function fields using classical analytic techniques such as character sums and approximate functional equation. The present paper is concerned with the study of mean values of derivatives of quadratic Dirichlet L-functions over function fields when the average is taken over monic and irreducible polynomials P in 𝔽q[T]. When the cardinality q of the ground field is fixed and the degree of P gets large, we obtain asymptotic formulas for the first moment of the first and the second derivative of this family of L-functions at the critical point. We also compute the full polynomial expansion in the asymptotic formulas for both mean values.