2,585 research outputs found
sj-docx-1-aop-10.1177_10600280211055508 – Supplemental material for Valproic Acid After Neurosurgery Induces Elevated Risk of Liver Injury: A Prospective Nested Case-Control Study
No full textSupplemental material, sj-docx-1-aop-10.1177_10600280211055508 for Valproic Acid After Neurosurgery Induces Elevated Risk of Liver Injury: A Prospective Nested Case-Control Study by Jinlin Guo, Jiuhong Ma, Shan Wang, Xingang Li, Hongming Ji, Yuanping Li, Fangchen Peng and Yiqi Sun in Annals of Pharmacotherapy</p
sj-docx-3-aop-10.1177_10600280211055508 – Supplemental material for Valproic Acid After Neurosurgery Induces Elevated Risk of Liver Injury: A Prospective Nested Case-Control Study
No full textSupplemental material, sj-docx-3-aop-10.1177_10600280211055508 for Valproic Acid After Neurosurgery Induces Elevated Risk of Liver Injury: A Prospective Nested Case-Control Study by Jinlin Guo, Jiuhong Ma, Shan Wang, Xingang Li, Hongming Ji, Yuanping Li, Fangchen Peng and Yiqi Sun in Annals of Pharmacotherapy</p
sj-docx-2-aop-10.1177_10600280211055508 – Supplemental material for Valproic Acid After Neurosurgery Induces Elevated Risk of Liver Injury: A Prospective Nested Case-Control Study
No full textSupplemental material, sj-docx-2-aop-10.1177_10600280211055508 for Valproic Acid After Neurosurgery Induces Elevated Risk of Liver Injury: A Prospective Nested Case-Control Study by Jinlin Guo, Jiuhong Ma, Shan Wang, Xingang Li, Hongming Ji, Yuanping Li, Fangchen Peng and Yiqi Sun in Annals of Pharmacotherapy</p
Position Paper: The Case for JavaScript Transactions
No full textModern Web applications combine and use JavaScript-based content from multiple untrusted sources. Without proper isolation, such content can compromise the security and privacy of these Web applications. Prior techniques for isolating untrusted JavaScript code do so by restricting dangerous constructs and inlining security checks into third-party code. This paper makes the case that JavaScript must be extended to make isolation a language-level primitive. We propose to extend the language using a new transaction construct that allows a Web application to speculatively execute untrusted code and isolate the changes and effects it performs. The Web application can then inspect these speculative actions and commit them only if they comply with the application’s security policies. We discuss use-cases that can benefit from JavaScript support for transactions, present a formalization of JavaScript transactions and conclude with implementation considerations.Technical report DCS-TR-66
Tunable acoustic attenuation in dilute suspensions of non-spherical magnetic particles
No full textThe microstructure of suspensions of ferromagnetic particles with subwavelength size can be controlled by an external field, making it possible to develop novel broadband acoustic materials with anisotropic and tunable acoustic properties. In this study we experimentally show that dilute suspensions of nickel micro-flakes exhibit a greater than 20% change in attenuation coefficient at MHz frequencies upon changing the direction of an external magnetic field, at particle volume fractions of only 0.5%. Optical transmission measurements and analysis of the characteristic timescales of particle alignment and chaining are used to study the mechanisms behind this acoustic anisotropy. By making comparison to suspensions of spherical particles, we show that the shape and orientation of the nickel micro-flakes play important roles in the tunable acoustic attenuation of these suspensions.Peer reviewed
Liquid democracy: a comparative study of digital urban democracy
No full textIn Liquid Democracy, author Yu-Shan Tseng offers a bold new framework for understanding democracy as a dynamic, fluid process. Challenging the idea that AI and digital tools are inherently anti-democratic, this innovative volume bridges theory and practice to investigate various “liquid conditions,” a novel concept capturing how political action flows and transforms like water within the intersections of urban spaces and digital technologies.Through an in-depth comparative study of three groundbreaking digital democracy platforms—Decide Madrid in Madrid, OmaStadi in Helsinki, and vTaiwan in Taipei—Tseng explores how digital platforms can foster participatory governance, pluralism, and alternative democratic futures. In-depth chapters critically examine the interactions between humans, algorithms, and urban systems, revealing how digital tools reconfigure the boundaries of political participation, decision-making, and collective action. Throughout the text, Tseng offers fresh insights into how democracy emerges under contingent conditions shaped by technology and geography.Drawing from years of ethnographic fieldwork, Liquid Democracy is essential reading for master’s and PhD students in geography, political science, and urban studies, as well as scholars, practitioners, and policymakers interested in digital governance, smart cities, civic technology, and algorithmic politics
Surface-charge effects on the electro-orientation of insulating boron-nitride nanotubes in aqueous suspension
No full textThe alignment of hexagonal boron-nitride nanotubes (BNNTs) in aqueous KCl solutions under spatially uniform electric fields was examined experimentally, using direct optical visualization to probe the orientation dynamics of individual BNNTs for different electric-field frequencies. Different from most previously studied nanowires and nanotubes, BNNTs are wide-bandgap materials which are essentially insulating at room temperature. We analyze the electro-orientation of BNNTs in the general context of polarizable cylindrical particles in liquid suspensions, whose behavior can fall into different regimes, including alignment due to Maxwell-Wagner induced dipoles at high frequencies, and alignment due to fluid motion of the electrical double layer around the particles at lower frequencies. For BNNTs, the variation of the crossover frequencies in the electro-orientation spectra was studied in electrolytes of different conductivity. The effect of BNNT surface charge on electro-orientation was further studied by changing the pH of the aqueous solution. We find that the electric-field alignment of the BNNTs in the low-frequency regime is associated with the charging and motion of the electrical double layer around the particle. However, as BNNTs are non-conducting particles, the reasons for the formation of the electrical double layer are likely to be different than that of conducting particles. We discuss two possible mechanisms for the double-layer formation and alignment of 1D dielectric particles, and make comparison to those for the more commonly studied conducting particles.Peer reviewe
Electrokinetics of Scalable, Electric-Field-Assisted Fabrication of Vertically Aligned Carbon-Nanotube/Polymer Composites
No full textComposite thin films incorporating vertically aligned carbon nanotubes (VACNTs) offer promise for a variety applications where the vertical alignment of the CNTs is critical to meet performance requirements, e.g., highly permeable membranes, thermal interfaces, dry adhesives, and films with anisotropic electrical conductivity. However, current VACNT fabrication techniques are complex and difficult to scale up. Here, we describe a solution-based, electric-field-assisted approach as a cost-effective and scalable method to produce large-area VACNT composites. Multiwall-carbon nanotubes are dispersed in a polymeric matrix, aligned with an alternating-current (AC) electric field, and electrophoretically concentrated to one side of the thin film with a direct-current (DC) component to the electric field. This approach enables the fabrication of highly concentrated, individually aligned nanotube composites from suspensions of very dilute (Φ = 4 X 10-4 volume fraction. We experimentally investigate the basic electrokinetics of nanotube alignment under AC electric fields, and show that simple models can adequately predict the rate and degree of nanotube alignment using classical expressions for the induced dipole moment, hydrodynamic drag, and the effects of Brownian motion. The composite AC + DC field also introduces complex fluid motion associated with AC electro-osmosis and the electrochemistry of the fluid/electrode interface. We experimentally probe the electric-field parameters behind these electrokinetic phenomena, and demonstrate, with suitable choices of processing parameters, the ability to scalably produce large-area composites containing VACNTs at number densities up to 1010 nanotubes/cm2. This VACNT number density exceeds that of previous electric-field-fabricated composites by an order of magnitude, and the surface-area coverage of the 40 nm VACNTs is comparable to that of chemical-vapor-deposition-grown arrays of smaller-diameter nanotubes.Peer reviewe
Polystichum clarinervium (subg. Haplopolystichum; Dryopteridaceae), a new fern from Emei shan, China
No full textA new fern species, Polystichum clarinervium, a member of P. subg. Haplopolystichum (Dryopteridaceae), is described and illustrated from Emei shan, Sichuan Province, Southwest China. The new species is similar to P. deltodon, but the former has pinnae slightly imbricate, pinna apex rounded, and veins clear, while the latter has pinnae not imbricate, pinna apex acute, and veins obscured. Polystichum clarinervium was found on a limestone slope under sparse forest at an elevation of 1300 m and is currently known from two small populations. It is classified as Critically Endangered (CR) following IUCN Red List criteria
- …
