Article
Business, Finance
Mark Carey, Michael B. Gordy
Summary: We provide a model and evidence demonstrating the significant role of private debtholders in setting the endogenous asset value threshold for corporate bankruptcy. The recovery rate at emergence from bankruptcy is positively related to the pre-bankruptcy share of private debt, indicating a two-threshold model where private debtholders force default in some cases and shareholders default strategically in others.
JOURNAL OF FINANCIAL ECONOMICS
(2021)
Review
Clinical Neurology
Sophie Tasseel-Ponche, Arnaud Delafontaine, Olivier Godefroy, Alain P. Yelnik, Pierre-Louis Doutrellot, Charline Duchossoy, Marie Hyra, Thibaud Sader, Momar Diouf
Summary: This study conducted a meta-analysis on gait disorders and walking speed in stroke patients, exploring the association with balance, cognitive disorders, and autonomy. Results showed that at the sub-acute stroke stage, patients' walking speed was lower than the general population and significantly below the level required for safe independent walking.
FRONTIERS IN NEUROLOGY
(2022)
Article
Computer Science, Hardware & Architecture
Tzu-Yang Wang, Hiroyasu Ujike
Summary: This study focuses on factors that influence the difference between simulated walking speed (SWSof) and true walking speed (TWS) in synchronized treadmill-based virtual reality locomotor systems. The research finds that the difference between SWSof and TWS is affected by distance cues and TWS, with virtual environments rich in distance cues and low TWS resulting in larger underestimation. Additionally, a higher TWS leads to a larger discrimination threshold.
Article
Multidisciplinary Sciences
Mhairi MacLean, Daniel Ferris
Summary: The study investigated the impact of simulated reduced gravity and walking speed on the quasi-stiffness of the hip, knee, and ankle in overground walking. The findings revealed significant effects of gravity level and speed on quasi-stiffness, with intrinsic muscle-tendon unit stiffness being the primary determinant.
Article
Multidisciplinary Sciences
Patrick Crowley, Nicolas Vuillerme, Afshin Samani, Pascal Madeleine
Summary: Using a mobile phone while walking affects the walking dynamics of young adults, especially when walking speed is increased and when texting. Higher walking speed increases vertical acceleration proportion and sample entropy, while texting increases Lyapunov exponent along the anteroposterior and vertical axes and decreases sample entropy along the vertical axis, indicating a reduction in local dynamic stability.
SCIENTIFIC REPORTS
(2021)
Article
Geriatrics & Gerontology
Yuji Hirano, Yoji Yamada, Yasumoto Matsui, Susumu Ota, Hidenori Arai
Summary: This cross-sectional study aimed to determine the predictors of walking speed <1 m/s among older outpatients. The results showed that leg muscle quality and the phase angle of lower extremities were independently associated with low walking speeds.
GERIATRICS & GERONTOLOGY INTERNATIONAL
(2022)
Article
Geriatrics & Gerontology
Laura Karavirta, Heidi Leppa, Timo Rantalainen, Johanna Eronen, Erja Portegijs, Taina Rantanen
Summary: This study investigates the associations between physical activity relative to walking performance and the prevalence and incidence of walking difficulties. The results show that habitual physical activity does not explain the differences in the development of new walking difficulty, while physical performance explains a meaningful part of the association of physical activity with walking difficulty. Scaling accelerometry to preferred walking speed could be a promising indicator of physical activity in older adults.
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
I. Andreev, V. M. Muravev, N. D. Semenov, I. Kukushkin
Summary: The study investigates the electrodynamics of a disk-shaped two-dimensional electron system near a screening gate, revealing the linear dispersion of two-dimensional plasmons with characteristics of acoustic plasma waves. Experimental results show the limit where the speed of acoustic waves approaches the speed of light. The observed strong coupling between acoustic plasmons and light, leading to electron effective mass renormalization, is substantiated by a developed theory.
Article
Environmental Studies
Marek Franek, Lukas Rezny
Summary: The study found that environmental features significantly influence walking speed, with slower speeds in sections with high natural characteristics and environmental preference, where noise was perceived as less annoying. The results are in line with environmental preference research, showing the numerous benefits of walking in natural surroundings.
Article
Ergonomics
Eunjee Kim, Yujin Kwon, Hyorim Kim, Gwanseob Shin
Summary: This study evaluated the performance of smartphone users in detecting ground-level visual cues while walking and texting, and found that cue contrast and walking speed significantly affected detection performance. The study suggests that slowing down walking speed and increasing the contrast of ground signals can help smartphone users perceive walkway hazards and in-ground safety signals earlier.
ACCIDENT ANALYSIS AND PREVENTION
(2022)
Article
Rheumatology
Hiral Master, Tuhina Neogi, Michael LaValley, Louise M. Thoma, Yuqing Zhang, Dana Voinier, Meredith B. Christiansen, Daniel K. White
Summary: This study found that in adults, walking slower than 1.22 m/s is associated with increased mortality risk, regardless of decline over the previous year.
JOURNAL OF RHEUMATOLOGY
(2021)
Article
Environmental Studies
Magne Fossum, Eirin Olaussen Ryeng
Summary: The study quantifies the relationship between pedestrians' walking speeds and various surface conditions typically associated with a winter environment. Results show that different winter operation and maintenance regimes can impact pedestrians' average travel times, with clean ice leading to longer travel times. The data collected should be used in cost-benefit analyses to evaluate the effects of different winter operation and maintenance regimes.
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
(2021)
Article
Energy & Fuels
Zhengqing Han, Rui Shen, Shuping Liu, Shibin Gao
Summary: This paper proposes a novel unit protection scheme to quickly clear faults in an all-parallel autotransformer railway system. By utilizing fault characteristics and employing directional distance protections with interlocking signals, the proposed scheme can rapidly and accurately trip the faulted line without interrupting the power supply of healthy lines.
CSEE JOURNAL OF POWER AND ENERGY SYSTEMS
(2023)
Article
Optics
Zheng-Rong Zhu, Qing Wang, Bin Shao, Jian Zou, Lian-Ao Wu
Summary: We investigate the impact of the Dzyaloshinskii-Moriya (DM) interaction on the quantum speed limit (QSL) and orthogonality catastrophe (OC) in XY spin chains. By considering an initial sudden quench, we derive the general expressions for fidelity and QSL time in terms of the antisymmetric quasiparticle excitation spectra. Our numerical and analytical studies reveal that the DM interaction affects QSL and fidelity differently depending on the system parameters. In general, we observe OC and vanishing QSL time in the thermodynamic limit, independent of the DM interaction strength. However, we find that the QSL can uniquely detect the critical points and lines induced by the DM interaction. We further analyze the actual evolution speed, a measure of criticality, and establish its direct correspondence with OC. Additionally, we study an interesting phenomenon arising from the magnetic field and DM interaction in the presence of classical noise, where we discover fault tolerance in the system dynamics when subjected to uniform classical noise in the DM interaction strength.
Article
Geriatrics & Gerontology
Colleen Brown, Eleanor Simonsick, Jennifer Schrack, Luigi Ferrucci
Summary: This study examines the relationship between balance test performance and the energetic cost of walking and gait speed. The results show that poor balance is associated with higher energetic cost and slower gait speed, suggesting that improving balance may delay mobility limitation in older adults.
JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
(2023)
Editorial Material
Cardiac & Cardiovascular Systems
Jose E. Exaire, Timothy A. Mixon
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Giuseppe Di Gioia, Federica Coletti, Lorenzo Buzzelli, Viviana Maestrini, Sara Monosilio, Andrea Segreti, Maria Rosaria Squeo, Erika Lemme, Antonio Nenna, Antonio Pelliccia
Summary: Dyslipidemia is common in Paralympic athletes, with lipid levels influenced by the type of disability and sporting discipline.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Esra Donmez, Sevgi Ozcan, Irfan Sahin, Murat Ziyrek, Ertugrul Okuyan
Summary: This study aimed to evaluate the predictive value of the GRACE risk score in acute pulmonary embolism (PE) patients for 30-day mortality and the need for thrombolytic treatment. The study found that the GRACE risk score, along with the PESI score, were independent risk factors associated with 30-day mortality and the need for thrombolytic treatment. The GRACE risk score showed high sensitivity and specificity in predicting mortality, and its combination with the PESI score helped define high-risk PE patients and predict poor prognosis.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Tom Kai Ming Wang, Reza Reyaldeen, Kevser Akyuz, Zoran B. Popovic, A. Marc Gillinov, Bo Xu, Brian P. Griffin, Milind Y. Desai
Summary: Transthoracic echocardiography (TTE) is commonly used to evaluate isolated tricuspid regurgitation (TR), but there is limited research comparing its quantification with magnetic resonance imaging (MRI). In this study, a novel TTE algorithm was developed to identify severe TR based on TTE parameters. The algorithm had a higher accuracy than the current guidelines' criteria in detecting severe TR by MRI.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Editorial Material
Cardiac & Cardiovascular Systems
Enkhtsogt Sainbayar, Ramzi Ibrahim, Hoang Nhat Pham, Wisam Beauti, Mahek Shahid, Natalie Hickerson, Mohammed Salih, Joao Paulo Ferreira, Mamas A. Mamas
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Richard E. Casazza, Hymie Chera, Carlos Adolfo Rodriguez, Sergey Ayzenberg
Summary: This article presents a case of a patient with known situs inversus who underwent cardiac catheterization and was found to have chronic total occlusion in the right coronary artery. Situs inversus is a rare congenital abnormality characterized by the inverted position of chest and abdominal organs. Cardiac catheterization is uncommon in patients with this particular abnormality, highlighting the importance of customizing techniques to engage coronary arteries and optimize guide support for percutaneous coronary intervention if needed.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Editorial Material
Cardiac & Cardiovascular Systems
Georgiana Pintea Bentea, Brahim Berdaoui, Sophie Samyn, Marielle Morissens, Philippe van de Borne, Jose Castro Rodriguez
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Bulbul Ahmed, Melissa G. Farb, Shakun Karki, Sophia D'Alessandro, Niloo M. Edwards, Noyan Gokce
Summary: This study evaluated the angiogenic capacity of adipose tissue in patients undergoing cardiac surgeries and found that patients with coronary artery disease (CAD) had reduced angiogenic capacity in their pericardial adipose tissue. Gene expression analysis revealed upregulated expression of the anti-angiogenic gene TSP-1 in CAD patients, with no significant differences in other angiogenic factors. Additionally, inhibiting TSP-1 expression significantly improved angiogenic deficiency in CAD patients.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Moshe Rav-Acha, Orli Wube, Oholi Tovia Brodie, Yoav Michowitz, Michael Ilan, Tal Ovdat, Robert Klempfner, Mahmud Suleiman, Ilan Goldenberg, Michael Glikson
Summary: The current guidelines recommend prophylactic implantable cardioverter-defibrillator (ICD) for patients with symptomatic heart failure (HF) and low left ventricular ejection fraction. However, not all patients will benefit from ICD treatment. This study evaluated the feasibility of using the MADIT-II-based Risk Stratification Score (MRSS) to predict the survival benefit of prophylactic ICDs in patients with HF. The results showed that different risk subgroups had varying levels of ICD survival benefit.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Ariel Banai, Rachel Retsky, Lior Lupu, Erez Levi, David Zahler, Omri Feder, Roei Merin, Yan Topilsky, Raphael Rosso, Shmuel Banai, Sami Viskin, Ehud Chorin
Summary: This study aims to evaluate the association between electromechanical window (EMW) and ventricular tachyarrhythmias in patients with Takotsubo syndrome (TTS). The study found that TTS patients had a lower EMW value, which was associated with an increased risk of ventricular tachyarrhythmias.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Harun Kundi, Kobina Hagan, Tamer Yahya, Garima Sharma, Sadeer Al-Kindi, Zulqarnain Javed, Khurram Nasir
Summary: Using latent class analysis (LCA), the study identified clinical, demographic, and social subphenotypes in ASCVD population and assessed the risk of all-cause and cardiovascular mortality across different socioclinical classes. The results showed that the younger, female, non-Hispanic Black or Hispanic individuals with a high burden of co-morbidities and unfavorable social determinants of health had the highest risk of mortality in the identified latent classes.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Moises A. Vasquez, Mina Iskander, Mohammed Mustafa, Juan A. Quintero-Martinez, Antonio Luna, Joel Mintz, Jose Noy, Juan Uribe, Ivan Mijares, Eduardo de Marchena, Yiannis S. Chatzizisis
Summary: The benefits of pericardiocentesis (PC) in patients with pulmonary hypertension (PH) and pericardial effusions are unclear. The study found that PC in PH patients is associated with higher in-hospital mortality and rates of cardiovascular complications.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Ken Kuwajima, Mana Ogawa, Irving Ruiz, Hiroko Hasegawa, Nobuichiro Yagi, Florian Rader, Robert J. Siegel, Takahiro Shiota
Summary: After cardiac surgery, the longitudinal function of the right ventricle and left ventricle is reduced, despite preserved global functions. In particular, tricuspid annular plane systolic excursion (TAPSE) remains decreased after surgery.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Min -Jung Kim, Robert H. Aseltine Jr, Sara R. Tabtabai
Summary: This study evaluated the rates and causes of 30-day readmissions after discharge for heart failure (HF) as a primary and secondary diagnosis. The findings indicate that efforts to reduce readmission rates should include patients with secondary HF diagnosis, and surveillance should extend to 2 weeks postdischarge to identify at-risk patients.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
Article
Cardiac & Cardiovascular Systems
Ya He, Jianzhong Zhou
Summary: This study aimed to examine the relation between reverse septal curvature (RSC) and nonsustained ventricular tachycardia (NSVT) in patients with hypertrophic cardiomyopathy (HCM). The study found that patients with RSC were younger and had a higher incidence of NSVT, and RSC was identified as a strong independent risk factor for NSVT.
AMERICAN JOURNAL OF CARDIOLOGY
(2024)
