Article
Otorhinolaryngology
James Alrassi, Adam Daniels, Richard M. Rosenfeld
Summary: This article explores the historic records of the AAO-HNS and focuses on the Dr. Chevalier Jackson Collection, revealing his contributions and educational legacy.
OTOLARYNGOLOGY-HEAD AND NECK SURGERY
(2023)
Article
Agronomy
Jenny Hagenblad, Matti W. Leino
Summary: This study investigated how the cultivar 'Chevalier' was spread and adopted in Nordic seed systems during the 19th century. It was found that Chevalier seeds were mixed and cultivated together with locally produced landrace seeds, resulting in hybrid varieties.
Article
Mechanics
Wenxuan Guo, Qiang Zhang
Summary: It is more challenging and time-consuming to conduct numerical simulations and experiments for the three-dimensional Richtmyer-Meshkov instability compared to two dimensions. Therefore, theories play a significant role in studying this instability. In this study, analytical formulas are presented to predict the behavior of growth rate and amplitude of fingers at the unstable Richtmyer-Meshkov interface. The theory is applicable to both spikes and bubbles, for any density ratio between the two fluids, and for the entire development process from early to late times.
Article
Physics, Multidisciplinary
Xiumei Qiao, Ke Lan
Summary: The study introduces a novel HDC-CH capsule design that significantly reduces the ablation front growth factor, thus enhancing the potential for successful ICF ignition.
PHYSICAL REVIEW LETTERS
(2021)
Editorial Material
Neurosciences
John. F. Cryan
Summary: John Cryan's research focuses on the intersection of the brain, gut, and microbiome. He discusses the growing acceptance among neuroscientists for the role of the microbiome in brain function. Cryan emphasizes the importance of public advocacy and seeking a broad network.
Article
Chemistry, Analytical
Eiko Westerbeek, Pierre Gelin, Wouter Olthuis, Jan Eijkel, Wim De Malsche
Summary: We introduced a lateral mixing methodology (vortex chromatography) to reduce Taylor-Aris dispersion in open-tubular channels during liquid chromatography operation. By employing AC-EOF fields perpendicular to the axially oriented pressure gradient, the C-term was reduced by a factor of 3 in 40 x 20 μm² channels under unretained conditions. Further performance gains were demonstrated for channel dimensions relevant for chromatographic applications, with a potential C-term reduction of up to 5 for large molecules in channels of 3 x 20 and 5 x 20 μm².
ANALYTICAL CHEMISTRY
(2023)
Article
Mechanics
Debashis Dutta
Summary: This article presents a mathematical formulation for quantitating band broadening in msACE systems due to pressure-driven flow, reducing errors in estimating parameter values.
Article
Mechanics
Juchun Ding, Xiaoming Deng, Xisheng Luo
Summary: The instability of an annular helium gas layer surrounded by air formed by a soap-film technique and impacted by a cylindrically convergent shock was experimentally studied. The study found that the layer thickness affects the early stage development of the outer interface, while the phase difference of perturbations has a significant influence on the inner interface. The empirical coefficient in the Charakhch'an model was determined to be beta = 0.52, providing a reasonable prediction of the post-reshock growth rate.
Review
Surgery
Sven E. Eriksson, Blair A. Jobe, Shahin Ayazi
Summary: Chevalier Jackson, a pioneering force in the medical world, made extraordinary contributions to surgery and public health. He developed the endoscope and bronchoscope, transforming the prognosis of foreign body aspiration. He was also a passionate advocate of public health, leading the legislation on lye and poison labels.
SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES
(2023)
Article
Mechanics
M. Manna, A. Vacca, R. Verzicco
Summary: Direct numerical simulations were performed to analyze the reverse transition dynamics of a turbulent spiral Poiseuille flow in a narrow-gap geometry at low Taylor number. It was found that a complete laminarization occurred at a significantly lower Reynolds number compared to the non-rotating case. The differences in the reverse transition process between the spiral Poiseuille flow and plain Poiseuille flow were attributed to the modifications of the isotropy of the Reynolds stress tensor, caused by changes in the velocity pressure-strain redistribution mechanisms.
JOURNAL OF FLUID MECHANICS
(2022)
Biographical-Item
Multidisciplinary Sciences
Clare P. Grey, Laura H. Lewis
Summary: The individual has made significant contributions and impact in the fields of solid-state chemistry and physics.
Article
Physics, Multidisciplinary
A. M. Saunders, C. Stan, K. K. Mackay, B. Morgan, J. A. K. Horwitz, S. J. Ali, H. G. Rinderknecht, T. Haxhimali, Y. Ping, F. Najjar, J. Eggert, H-S Park
Summary: Studying high-velocity particle-laden flow interactions is crucial for understanding natural phenomena, but experimental observations are limited. Observing interactions of ejecta microjets provides a new method to study particle streams.
PHYSICAL REVIEW LETTERS
(2021)
Article
Engineering, Environmental
Ye Chan Jee, Woo-Sik Kim, Sang Hyuk Im
Summary: It was demonstrated that the reaction pathway of CsPbBr3 and Cs4PbBr6 perovskite nano crystals (PNCs) can be controlled by the periodic flow fields and precursor ratio. The selective formation of CsPbBr3 and Cs4PbBr6 PNCs was achieved in a Couette-Taylor batch reactor with periodic Taylor vortex flows, while it was not possible in a stirred tank reactor with random turbulent eddy flow.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Physics, Applied
L. Soulard
Summary: This paper presents a semi-analytical method for determining the velocity and density of a jet from a triangular defect in the micro-jetting process. The model is an extension to micro-jetting specificities of the model usually used for shaped charges. It provides a good restitution of the jet velocity and density from classical molecular dynamics simulations and demonstrates good agreement with literature data, both experimental and numerical.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Mathematics
Grigory Ivanov, Marton Naszodi
Summary: This paper introduces a new way of representing logarithmically concave functions and extends the notion of the largest volume ellipsoid to this setting. The John s-function of a log-concave function is defined and characterized, showing convergence to ellipsoid characteristic functions and Gaussian densities as the parameter s tends to zero and infinity, respectively. As an application, a quantitative Helly type result is proved, establishing a lower bound for the integral of the pointwise minimum of a family of log-concave functions.
JOURNAL OF FUNCTIONAL ANALYSIS
(2022)
