keyword
https://read.qxmd.com/read/38536751/elasticity-and-rheology-of-auxetic-granular-metamaterials
#1
JOURNAL ARTICLE
Daan Haver, Daniel Acuña, Shahram Janbaz, Edan Lerner, Gustavo Düring, Corentin Coulais
The flowing, jamming, and avalanche behavior of granular materials is satisfyingly universal and vexingly hard to tune: A granular flow is typically intermittent and will irremediably jam if too confined. Here, we show that granular metamaterials made from particles with a negative Poisson's ratio yield more easily and flow more smoothly than ordinary granular materials. We first create a collection of auxetic grains based on a re-entrant mechanism and show that each grain exhibits a negative Poisson's ratio regardless of the direction of compression...
April 2, 2024: Proceedings of the National Academy of Sciences of the United States of America
https://read.qxmd.com/read/38532269/re-emergent-tremor-in-parkinson-s-disease-evidence-of-pathologic-%C3%AE-and-prokinetic-%C3%AE-activity
#2
JOURNAL ARTICLE
Hao Ding, Bahman Nasseroleslami, Daniela Mirzac, Ioannis Ugo Isaias, Jens Volkmann, Günther Deuschl, Sergiu Groppa, Muthuraman Muthuraman
BACKGROUND: Re-emergent tremor is characterized as a continuation of resting tremor and is often highly therapy refractory. This study examines variations in brain activity and oscillatory responses between resting and re-emergent tremors in Parkinson's disease. METHODS: Forty patients with Parkinson's disease (25 males, mean age, 66.78 ± 5.03 years) and 40 age- and sex-matched healthy controls were included in the study. Electroencephalogram and electromyography signals were simultaneously recorded during resting and re-emergent tremors in levodopa on and off states for patients and mimicked by healthy controls...
March 26, 2024: Movement Disorders: Official Journal of the Movement Disorder Society
https://read.qxmd.com/read/38529434/recovery-and-survival-of-patients-after-out-of-hospital-cardiac-arrest-a-literature-review-showcasing-the-big-picture-of-intensive-care-unit-related-factors
#3
REVIEW
Srdjan S Nikolovski, Aleksandra D Lazic, Zoran Z Fiser, Ivana A Obradovic, Jelena Z Tijanic, Violetta Raffay
As an important public health issue, out-of-hospital cardiac arrest (OHCA) requires several stages of high quality medical care, both on-field and after hospital admission. Post-cardiac arrest shock can lead to severe neurological injury, resulting in poor recovery outcome and increased risk of death. These characteristics make this condition one of the most important issues to deal with in post-OHCA patients hospitalized in intensive care units (ICUs). Also, the majority of initial post-resuscitation survivors have underlying coronary diseases making revascularization procedure another crucial step in early management of these patients...
February 2024: Curēus
https://read.qxmd.com/read/38529057/dynamics-of-microcystis-surface-scum-formation-under-different-wind-conditions-the-role-of-hydrodynamic-processes-at-the-air-water-interface
#4
JOURNAL ARTICLE
Huaming Wu, Xingqiang Wu, Lorenzo Rovelli, Andreas Lorke
Due to climate change, Microcystis blooms occur at increasing frequencies in aquatic ecosystems worldwide. Wind-generated turbulence is a crucial environmental stressor that can vertically disperse the Microcystis surface scum, reducing its light availability. Yet, the interactions of Microcystis scum with the wind-generated hydrodynamic processes, particularly those at the air-water interface, remain poorly understood. Here, we explore the response of Microcystis (including colony size and migration dynamics) to varying magnitudes and durations of intermittent wind disturbances in a mesocosm system...
2024: Frontiers in Plant Science
https://read.qxmd.com/read/38519724/confinement-tonicity-on-epidemic-spreading
#5
JOURNAL ARTICLE
Alexis Erich S Almocera, Alejandro H González, Esteban A Hernandez-Vargas
Emerging and re-emerging pathogens are latent threats in our society with the risk of killing millions of people worldwide, without forgetting the severe economic and educational backlogs. From COVID-19, we learned that self isolation and quarantine restrictions (confinement) were the main way of protection till availability of vaccines. However, abrupt lifting of social confinement would result in new waves of new infection cases and high death tolls. Here, inspired by how an extracellular solution can make water move into or out of a cell through osmosis, we define confinement tonicity...
March 22, 2024: Journal of Mathematical Biology
https://read.qxmd.com/read/38511865/renal-hemodynamic-and-functional-changes-in-adpkd-patients
#6
JOURNAL ARTICLE
Ryota Ishii, Hirayasu Kai, Kentaro Nakajima, Takuya Harada, Tomoki Akiyama, Eri Okada, Ryoya Tsunoda, Toshiaki Usui, Kaori Mase, Naoki Morito, Chie Saito, Joichi Usui, Kunihiro Yamagata
BACKGROUND: Although the mechanisms underlying cyst enlargement in autosomal dominant polycystic kidney disease (ADPKD) are becoming clearer, those of renal dysfunction are not fully understood. In particular, total kidney volume (TKV) and renal function do not always correspond. To elucidate this discrepancy, we studied in detail glomerular hemodynamic changes during ADPKD progression. METHODS: Sixty-one ADPKD patients with baseline height-adjusted TKV (Ht-TKV) of 933±537 ml/m and serum creatinine of 1...
March 21, 2024: Kidney360
https://read.qxmd.com/read/38510505/clinical-effects-of-physiologic-lesion-testing-in-influencing-treatment-strategy-for-multi-vessel-coronary-artery-disease
#7
JOURNAL ARTICLE
Harsh Rawal, Tung D Nguyen, Efehi Igbinomwanhia, Lloyd W Klein
BACKGROUND: The application of fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) in multivessel coronary artery disease (CAD) patients has not been definitively explored. We herein assessed how treatment strategies were decided based on FFR/iFR values in vessels selected clinically. Specifically, we sought to determine whether treatment selection was based on whether the vessel tested was the clinical target stenosis. METHODS: 270 consecutive patients with angiographically determined multivessel disease who underwent FFR/iFR testing were included...
April 2024: American heart journal plus: cardiology research and practice
https://read.qxmd.com/read/38510375/endovascular-aortic-occlusion-improves-return-of-spontaneous-circulation-after-longer-periods-of-cardiopulmonary-resuscitation-a-translational-study-in-pigs
#8
JOURNAL ARTICLE
Steven Siemieniak, Tanner Greiving, Nola Shepard, Jason Rall, Craig Nowadly
INTRODUCTION: Resuscitative endovascular balloon occlusion of the aorta (REBOA) has emerged as an adjunct to CPR for nontraumatic cardiac arrest (NTCA). This translational study investigated the impact of varying low-flow duration (15- vs 30-mins) on REBOA's hemodynamic performance and ability to achieve return of spontaneous circulation (ROSC) in a porcine model. METHODS: Thirty-two pigs were anesthetized and placed into ventricular fibrillation. All animals received a 4-min no-flow period before CPR was initiated...
June 2024: Resuscitation plus
https://read.qxmd.com/read/38510102/syphilitic-ostial-coronary-artery-occlusion-treated-with-percutaneous-coronary-intervention-case-series-and-literature-review
#9
JOURNAL ARTICLE
Yasmine Baydoun, Yuriy Stukov, Matthew S Purlee, Bailey Chagnon, Sergiy V Salo, Andrii Y Gavrylyshin, Vasyl Lazoryshynets, Olena Levchyshyna, Omar M Sharaf, Giles J Peek, Mark S Bleiweis, Jeffrey P Jacobs
INTRODUCTION: Non-atherosclerotic causes of acute coronary syndrome (ACS) are important contributors to a substantial number of acute ischemic coronary events. Syphilitic aortitis is a rare complication of tertiary cardiovascular syphilis that may result in ostial coronary artery stenosis, aortic insufficiency, and ascending aortic aneurysm. METHODS: In this manuscript, we present two Case Reports of patients with bilateral syphilitic coronary artery ostial occlusion, and we review the associated literature...
December 2023: American heart journal plus: cardiology research and practice
https://read.qxmd.com/read/38509224/mimicking-clinical-trials-with-synthetic-acute-myeloid-leukemia-patients-using-generative-artificial-intelligence
#10
JOURNAL ARTICLE
Jan-Niklas Eckardt, Waldemar Hahn, Christoph Röllig, Sebastian Stasik, Uwe Platzbecker, Carsten Müller-Tidow, Hubert Serve, Claudia D Baldus, Christoph Schliemann, Kerstin Schäfer-Eckart, Maher Hanoun, Martin Kaufmann, Andreas Burchert, Christian Thiede, Johannes Schetelig, Martin Sedlmayr, Martin Bornhäuser, Markus Wolfien, Jan Moritz Middeke
Clinical research relies on high-quality patient data, however, obtaining big data sets is costly and access to existing data is often hindered by privacy and regulatory concerns. Synthetic data generation holds the promise of effectively bypassing these boundaries allowing for simplified data accessibility and the prospect of synthetic control cohorts. We employed two different methodologies of generative artificial intelligence - CTAB-GAN+ and normalizing flows (NFlow) - to synthesize patient data derived from 1606 patients with acute myeloid leukemia, a heterogeneous hematological malignancy, that were treated within four multicenter clinical trials...
March 20, 2024: NPJ Digital Medicine
https://read.qxmd.com/read/38509193/multigrid-simulations-of-non-newtonian-fluid-flow-and-heat-transfer-in-a-ventilated-square-cavity-with-mixed-convection-and-baffles
#11
JOURNAL ARTICLE
Nusrat Rehman, Rashid Mahmood, Afraz Hussain Majeed, Ilyas Khan, Abdullah Mohamed
The impact of baffles on a convective heat transfer of a non-Newtonian fluid is experimentally studied within a square cavity. The non-Newtonian fluid is pumped into the cavity through the inlet and subsequently departs from the cavity via the outlet. Given the inherent non-linearity of the model, a numerical technique has been selected as the method for obtaining the outcomes. Primarily, the governing equations within the two-dimensional domain have been discretized using the finite element method. For approximating velocity and pressure, we have employed the reliable <mml:math xmlns:mml="https://www...
March 20, 2024: Scientific Reports
https://read.qxmd.com/read/38491667/validation-of-symmetry-induced-high-moment-velocity-and-temperature-scaling-laws-in-a-turbulent-channel-flow
#12
JOURNAL ARTICLE
Francisco Alcántara-Ávila, Luis Miguel García-Raffi, Sergio Hoyas, Martin Oberlack
The symmetry-based turbulence theory has been used to derive new scaling laws for the streamwise velocity and temperature moments of arbitrary order. For this, it has been applied to an incompressible turbulent channel flow driven by a pressure gradient with a passive scalar equation coupled in. To derive the scaling laws, symmetries of the classical Navier-Stokes and the thermal energy equations have been used together with statistical symmetries, i.e., the statistical scaling and translation symmetries of the multipoint moment equations...
February 2024: Physical Review. E
https://read.qxmd.com/read/38482140/longitudinal-observations-of-the-effects-of-ischemic-stroke-on-binaural-perception
#13
JOURNAL ARTICLE
Anna Dietze, Peter Sörös, Henri Pöntynen, Karsten Witt, Mathias Dietz
Acute ischemic stroke, characterized by a localized reduction in blood flow to specific areas of the brain, has been shown to affect binaural auditory perception. In a previous study conducted during the acute phase of ischemic stroke, two tasks of binaural hearing were performed: binaural tone-in-noise detection, and lateralization of stimuli with interaural time- or level differences. Various lesion-specific, as well as individual, differences in binaural performance between patients in the acute phase of stroke and a control group were demonstrated...
2024: Frontiers in Neuroscience
https://read.qxmd.com/read/38481667/optilume-drug-coated-balloon-for-anterior-urethral-stricture-2-year-results-of-the-robust-iii-trial
#14
JOURNAL ARTICLE
Maia E VanDyke, Allen F Morey, Karl Coutinho, Kaiser J Robertson, Richard D'Anna, Kent Chevli, Christopher H Cantrill, Michael J Ehlert, Alexis E Te, Jeffrey Dann, Jessica M DeLong, Ramón Virasoro, Judith C Hagedorn, Richard Levin, Euclid DeSouza, David DiMarco, Brad A Erickson, Carl Olsson, Sean P Elliott
OBJECTIVE: The aim of this study is to report the updated 2-year results of the intervention arm of the ROBUST III randomized trial evaluating the safety and efficacy of the Optilume drug-coated balloon (DCB) versus standard endoscopic management of recurrent male anterior urethral stricture. MATERIALS AND METHODS: Eligible patients included men with recurrent anterior urethral stricture ≤3 cm in length and ≤12Fr in diameter, International Prostate Symptom Score (IPSS) ≥11 and peak flow rate (Qmax) <15 mL/s...
March 2024: BJUI compass
https://read.qxmd.com/read/38481644/takotsubo-syndrome-associated-with-coronary-microvascular-dysfunction-a-case-study
#15
Shohei Ikeda, Morihiko Takeda, Koichi Sato, Mariko Shinozaki, Satomi Watanabe, Keita Miki, Michinori Hirano, Koji Fukuda, Nobuyuki Shiba
UNLABELLED: The patient, a 68-year-old man, presented to our emergency room with chest pain, prompting an emergency cardiac catheterization due to elevated cardiac troponin-I levels. While no obvious coronary artery stenosis was found, there was evidence of apical ballooning wall motion in the left ventricle, leading to a diagnosis of takotsubo syndrome. Three months later, he occasionally experienced chest pain at rest, prompting us to conduct another cardiac catheterization. Left ventriculography showed normal contraction...
March 2024: Journal of Cardiology Cases
https://read.qxmd.com/read/38476194/has-collateral-blood-flow-any-effect-on-restenosis-rate-our-experience
#16
JOURNAL ARTICLE
Yanjiang Li, Yujie Sun, Tonghui Liu, Peng Liu, Guangwen Li, Yong Zhang
OBJECTIVES: Restenosis is one of the important factors affecting the effectiveness of percutaneous transluminal angioplasty and stenting in the treatment of intracranial atherosclerotic stenosis. We aimed to clarify whether recruitable collateral flow could cause restenosis in patients treated with percutaneous transluminal angioplasty and stenting. MATERIAL AND METHODS: Our study retrospectively analyzed patients with symptomatic severe intracranial atherosclerotic stenosis (≥70%) who underwent percutaneous transluminal angioplasty and stenting...
2024: Frontiers in Neurology
https://read.qxmd.com/read/38470143/complex-n-glycans-are-important-for-interspecies-transmission-of-h7-influenza-a-viruses
#17
JOURNAL ARTICLE
Cindy M Spruit, Diana I Palme, Tiehai Li, María Ríos Carrasco, Alba Gabarroca García, Igor R Sweet, Maryna Kuryshko, Joshua C L Maliepaard, Karli R Reiding, David Scheibner, Geert-Jan Boons, Elsayed M Abdelwhab, Robert P de Vries
Influenza A viruses (IAVs) can overcome species barriers by adaptation of the receptor-binding site of the hemagglutinin (HA). To initiate infection, HAs bind to glycan receptors with terminal sialic acids, which are either N -acetylneuraminic acid (NeuAc) or N -glycolylneuraminic acid (NeuGc); the latter is mainly found in horses and pigs but not in birds and humans. We investigated the influence of previously identified equine NeuGc-adapting mutations (S128T, I130V, A135E, T189A, and K193R) in avian H7 IAVs in vitro and in vivo ...
March 12, 2024: Journal of Virology
https://read.qxmd.com/read/38468724/operator-decision-making-in-angiography-only-guided-revascularization-for-lesions-not-indicated-for-ffr-a-qfr-based-functional-assessment-in-chronic-coronary-syndrome
#18
JOURNAL ARTICLE
Sadeek S Kanoun Schnur, Robertas Pranevičius, Cosima Stark, Dan Prunea, Judit Andreka, Albrecht Schmidt, Stefan Harb, Zoltan Ruzsa, Robert Zweiker, Jesse Kane, Gabor G Toth
BACKGROUND: Discordance between coronary angiographic findings and invasive functional significance is well-established. Yet, the prevalence of this mismatch in an era increasingly utilizing invasive functional assessments, such as fractional flow reserve (FFR), remains unclear. This study examines the extent of such discrepancies in current clinical practice. METHODS: This single-center prospective registry included consecutive patients with chronic coronary syndrome (CCS) who underwent elective coronary angiography, with or without revascularization...
2024: Frontiers in Cardiovascular Medicine
https://read.qxmd.com/read/38467916/flow-diversion-of-ruptured-intracranial-aneurysms-a-single-center-study-with-a-standardized-antithrombotic-treatment-protocol
#19
JOURNAL ARTICLE
Anni Rantamo, Camille Gallé, Jussi Numminen, Jyri Virta, Päivi Tanskanen, Ann-Christine Lindroos, Julio Resendiz-Nieves, Martin Lehecka, Mika Niemelä, Roel Haeren, Rahul Raj
BACKGROUND: The use of antithrombotic medication following acute flow diversion for a ruptured intracranial aneurysm (IA) is challenging with no current guidelines. We investigated the incidence of treatment-related complications and patient outcomes after flow diversion for a ruptured IA before and after the implementation of a standardized antithrombotic medication protocol. METHODS: We conducted a single-center retrospective study including consecutive patients treated for acutely ruptured IAs with flow diversion during 2015-2023...
March 11, 2024: Acta Neurochirurgica
https://read.qxmd.com/read/38466885/intraoperative-indocyanine-green-fluorescence-imaging-to-predict-early-hepatic-arterial-complications-after-liver-transplantation
#20
JOURNAL ARTICLE
Muga Terasawa, Hiroshi Imamura, Marc Antoine Allard, Daniel Pietrasz, Oriana Ciacio, Gabriella Pittau, Chady Salloum, Antonio Sa Cunha, Daniel Cherqui, René Adam, Daniel Azoulay, Akio Saiura, Eric Vibert, Nicolas Golse
PURPOSE: In liver transplantation (LT) setting, to propose an innovative intraoperative criterion to judge arterial flow abnormality that may lead to early hepatic arterial occlusion, i.e. thrombosis or stenosis, when left untreated and to carry out re-anastomosis. PATIENTS AND METHODS: After liver graft implantation, and after ensuring that there is no abnormality on the Doppler ultrasound (qualitative and quantitative assessment), we intraoperatively injected indocyanine green dye (ICG, 0...
March 7, 2024: Liver Transplantation
keyword
keyword
27314
1
2
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.