Article
Physics, Particles & Fields
Isaac Layton, Jonathan Oppenheim, Andrea Russo, Zachary Weller-Davies
Summary: In this paper, we derive the Newtonian limit of classical-quantum theories of gravity and compare it to previous models. The results show that the weak field dynamics differs from previous models. We also propose a system of stochastic differential equations for the trajectory of the hybrid classical-quantum state and provide a series of kernels for constructing figures of merit to experimentally test the parameter space of classical-quantum theories of gravity.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Neuroimaging
Jason W. Robertson, Guillermo Aristi, Javeria A. Hashmi
Summary: Chronic back pain (CBP) has significant clinical and social implications and is a major cause of disability. Using diffusion-weighted imaging, researchers found that CBP patients had lower fiber density in several tracts, such as the thalamic radiations, spinothalamic tract, and corpus callosum, compared to healthy controls. These findings have important implications for understanding sensory data processing in CBP.
NEUROIMAGE-CLINICAL
(2023)
News Item
Chemistry, Multidisciplinary
Richiro Ushimaru, Ikuro Abe
Summary: Two enzymes catalyze tandem hetero-Diels-Alder reactions in the biosynthesis of bistropolone-sesquiterpene secondary metabolites, showing a synergistic interplay between a calcium cofactor and N-glycan post-translational modifications.
Article
Physics, Particles & Fields
Isaac Layton, Jonathan Oppenheim, Andrea Russo, Zachary Weller-Davies
Summary: Consistent coupling between quantum and classical degrees of freedom is achieved when there is diffusion of classical degrees of freedom and decoherence of the quantum system. This paper derives the Newtonian limit of classical-quantum (CQ) theories of gravity and finds that the Newtonian potential diffuses into mass eigenstates due to decoherence. The results are presented as a set of stochastic differential equations and can be used to experimentally test and eliminate certain parameter spaces of classical-quantum theories of gravity through the trade-off between decoherence and diffusion.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Computer Science, Information Systems
Jie Tan, Daniel Feitosa, Paris Avgeriou
Summary: The study found that about half of technical debt issues are self-fixed, with the likelihood of self-fixing being negatively correlated with project size and number of developers. There was no significant difference in remediation time and survival time between self-fixed and non-self-fixed issues. Furthermore, developers are more inclined to self-fix technical debt related to lower code level issues.
INFORMATION AND SOFTWARE TECHNOLOGY
(2022)
Letter
Medicine, General & Internal
Justin Davis
Summary: This article contradicts the recommendation in The Renal Drug Handbook regarding the use of colchicine in gout patients with chronic kidney disease, highlighting the need for further clarification and research.
NEW ENGLAND JOURNAL OF MEDICINE
(2022)
Article
Geography
Julie Tomiak
Summary: This intervention highlights the significance of land reclamation, which entails the demand for the return of lands and waters and the transformation of social relations based on Indigenous systems of law, governance, and care. It encourages a comprehensive understanding of Indigenous people's demands for urban space in various aspects.
Article
Anesthesiology
David Murray Klyne, Leanne Marie Hall, Michael K. Nicholas, Paul William Hodges
Summary: Early identification of depressive symptoms and healthcare utilization predicted worse and better outcomes in acute low back pain, respectively. Gender and BMI inconsistently predicted outcomes. Time variation of risk factors should be considered in assessing poor outcome risk.
EUROPEAN JOURNAL OF PAIN
(2022)
Review
Medicine, General & Internal
Nebojsa Nick Knezevic, Kenneth D. Candido, Johan W. S. Vlaeyen, Jan Van Zundert, Steven P. Cohen
Summary: Low back pain encompasses various types of pain, with diagnostic and therapeutic methods controversial, requiring a comprehensive approach considering biological, psychological, and social factors. Improvement in diagnostic accuracy, treatment algorithms, and multimodal interdisciplinary treatment are essential.
Article
Astronomy & Astrophysics
Rodrigo Alonso, Jakub Scholtz
Summary: It has been found that the abundance of dark matter may be sourced by the baryon/lepton asymmetry of the early Universe. Through the mechanism of the Goldstone field, initial conditions for dark matter can be dynamically generated, with predictions showing an inverse dependence on coupling. When combined with leptogenesis, a viable region of parameter space for dark matter production can be identified.
Article
Engineering, Electrical & Electronic
Weiquan Zhang, Yue Li, Kunpeng Wei, Zhijun Zhang
Summary: This paper presents two dual-band back-to-back planar inverted-F antennas (PIFAs) for WLAN applications, which can simultaneously radiate at the 2.4 GHz and 5 GHz bands by etching a slot on the PIFA. A decoupling process using long and short slots on the ground is discussed to reduce mutual coupling. The fabricated and measured antennas show good coverage of the 2.4 and 5 GHz WLAN bands with isolation improved to higher than 20 dB at both bands.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Behavioral Sciences
Anna Miro-Padilla, Elisenda Bueicheku, Jesus Adrian-Ventura, Victor Costumero, Maria-Angeles Palomar-Garcia, Esteban Villar-Rodriguez, Lidon Marin-Marin, Naiara Aguirre, Cesar Avila
Summary: The study found that brief working memory training can lead to changes in brain structures, with sustained enlargement in GM volume in the right superior parietal cortex and transient decrease in GM in the right putamen. These changes exhibit both sustained and transient effects, with a stronger brain adaptation in the right superior parietal cortex in individuals with greater performance improvements.
NEUROBIOLOGY OF LEARNING AND MEMORY
(2021)
Editorial Material
Oncology
Lawrence Leichman
Summary: The article tells a story about an oncologist losing his wife, also an oncologist, to brain cancer and the life-changing decisions he made afterwards.
Article
Automation & Control Systems
Igor D. N. Souza, Pedro Machado de Almeida, Gabriel A. Fogli, Pedro Gomes Barbosa, Paulo Fernando Ribeiro
Summary: This article proposes a scheme for the analysis and control design of a back-to-back (BTB) converter using a multivariable approach. The BTB converter is analyzed as a multiple-input multiple-output system using singular value decomposition and relative gain array, which helps determine the variables that should be controlled within a given frequency range. Based on this analysis, low- and high-frequency controllers are included to track references and reject disturbances. The sensitivity and complementary sensitivity functions are analyzed to fine-tune a centralized optimal linear quadratic multivariable control. Experimental results are presented to validate the effectiveness of the analysis and control design.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Medicine, General & Internal
Alessandro Chiarotto, Bart W. Koes
Summary: A 37-year-old man with a history of low back pain after vigorous sports activities presents with a month-long episode of worsening pain and stiffness in the lower back, particularly in the mornings. Physical examination reveals limited range of motion on lumbar forward bending and tenderness on palpation of the lower back, but no neurologic deficits.
NEW ENGLAND JOURNAL OF MEDICINE
(2022)
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.