Article
Radiology, Nuclear Medicine & Medical Imaging
Erin Iredale, Brynn Voigt, Adam Rankin, Kyungho W. Kim, Jeff Z. Chen, Susanne Schmid, Matthew O. Hebb, Terry M. Peters, Eugene Wong
Summary: A custom treatment planning and implantation system for intratumoral modulation therapy (IMT) has been developed and validated on a phantom brain model, providing an essential step in advancing IMT technology toward future clinical safety and efficacy investigations.
Article
Engineering, Biomedical
Erin Iredale, Abdulla Elsaleh, Hu Xu, Paul Christiaans, Andrew Deweyert, John Ronald, Susanne Schmid, Matthew O. Hebb, Terry M. Peters, Eugene Wong
Summary: This study investigated the feasibility of using low intensity electric fields to treat glioblastoma (GBM). Computer simulations and in vitro experiments were conducted to evaluate the effects of spatiotemporally dynamic electric fields on GBM cell viability. The results showed that rotating electric fields significantly reduced cell viability, and the strength and homogeneity of the electric field were important factors in determining the treatment efficacy.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Review
Biotechnology & Applied Microbiology
Smriti Adil, Vikram Singh, Afreen Anjum, Afaque Quraishi
Summary: This article discusses the electrophysiological phenomena of plants and the application of electrotherapy in virus elimination. Through a review of literature, directions for improving virus elimination techniques and producing virus-free plants are provided. Further comprehensive studies are still needed for a better understanding of the mechanism behind electrotherapy.
PLANT CELL TISSUE AND ORGAN CULTURE
(2022)
Article
Engineering, Biomedical
Donghui Wang, Shun Xing, Feng Peng, Xianming Zhang, Ji Tan, Xueqing Hao, Yuqin Qiao, Naijian Ge, Xuanyong Liu
Summary: In this study, an implantable material capable of responding to the microenvironment and achieving electrotherapy for killing tumor cells is reported. This material can intelligently identify and meet physiological requirements, minimizing harm to normal cells.
BIOACTIVE MATERIALS
(2023)
Article
Multidisciplinary Sciences
Sha Li, Yaguo Tang, Lisa Ortmann, Bradford K. Talbert, Cosmin I. Blaga, Yu Hang Lai, Zhou Wang, Yang Cheng, Fengyuan Yang, Alexandra S. Landsman, Pierre Agostini, Louis F. DiMauro
Summary: Studies have been mostly theoretical on laser-driven strong field processes under a (quasi-)static field, but this study provides experimental evidence by using a bichromatic approach for high harmonic generation (HHG) in a dielectric. The authors investigate the physics behind the THz field induced static symmetry breaking and its effects on even-/odd-order harmonics, and demonstrate the modulation of harmonic distribution as a way to probe HHG dynamics. They also report a delay-dependent frequency shift in even-order harmonics, suggesting limitations in the static symmetry breaking interpretation and opening opportunities in precise attosecond pulse shaping.
NATURE COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
P. Briz, B. Lopez-Alonso, H. Sarnago, J. M. Burdio, O. Lucia
Summary: Electroporation is the increase in cell membrane permeability when exposed to high pulsed electric fields. This phenomenon can be used in tumor ablation therapies in a clinical setting. In this study, a pre-treatment tumor location method was developed to precisely target the therapy by using impedance measurements and artificial neural networks.
BIOELECTROCHEMISTRY
(2023)
Article
Computer Science, Information Systems
Maria N. Moussa, Mervat A. Madi, Karim Y. Kabalan
Summary: This paper presents a simple and innovative design for breast cancer detection, sizing, and localization. By applying fractal theory, a miniature-sized antenna is designed with positive gain at an optimized frequency. The insertion of slots in the antenna design improves its performance. The antenna, when used as an array, can detect the presence, size, and position of breast tumors without the need for complicated image processing.
IEEE JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS
(2022)
Article
Physics, Multidisciplinary
William S. Huxter, Martin F. Sarott, Morgan Trassin, Christian L. Degen
Summary: Using a scanning nitrogen-vacancy (NV) microscope, we are able to visualize domain patterns in piezoelectric and improper ferroelectric materials by measuring their electric fields. This electric field detection method enables discrimination between different types of surface charge distributions and reconstruction of three-dimensional electric field vector and charge density maps.
Article
Computer Science, Information Systems
Kang Liu, Yudi Fan, Jianqiao Ma, Yihu Wang, Hao Xu
Summary: The increase in bird populations along the Hexi Corridor has led to more flashover faults on 330 kV transmission lines caused by bird droppings. To address this issue, a three-dimensional model was created to analyze the distribution of the electric field near composite insulators during the falling process of bird droppings. Based on simulation results, a bird-proof cover was designed to change the trajectory of the bird droppings.
Article
Chemistry, Physical
Xiong Xu, Long Zhang, Lin Zou, Min Li, Hui Wang
Summary: We report a new physical phenomenon of active and enhanced control of the spin Hall conductivity (SHC) in metal-ferroelectric multilayers. Using Pt/PbZrTiO3 multilayers as a model, we demonstrate the controllability of SHC in the Ptfilm at the two interfaces with an antitype conducting carrier in a ferroelectric substrate. The interfacial Rashba effect plays a role in contributing to the change of SHC through spin-projected band analysis. This work opens up a new direction to manipulate spin-charge conversion of thin-film layered structures by ferroelectricity.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Huan Tan, Tingfeng Song, Nico Dix, Florencio Sanchez, Ignasi Fina
Summary: The piezoelectric response in doped ferroelectric HfO2 polycrystalline films has been investigated. The lack of texture in most films hinders a thorough understanding. Epitaxial films enable modification of the ferroelectric phase ratio and crystallographic orientation, providing further insight into the piezoelectric response. The magnitude of the in-plane and out-of-plane piezoelectric responses is mainly governed by the orthorhombic phase and the polar axis of the polarization along the probing direction.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Multidisciplinary Sciences
Haoxin Zhou, Ludwig Holleis, Yu Saito, Liam Cohen, William Huynh, Caitlin L. Patterson, Fangyuan Yang, Takashi Taniguchi, Kenji Watanabe, Andrea F. Young
Summary: Spin-polarized superconductivity is observed in Bernal bilayer graphene under a large applied perpendicular electric field. Electrostatic gate tuning leads to transitions between electronic phases with different polarizations in the spin space. A transition to a superconducting state is observed at a finite magnetic field, and the critical temperature is consistent with a spin-triplet order parameter.
Article
Optics
Chao-Ching Ho, Jun-Yi Kao
Summary: This study proposes the use of an external sensing electric field to design and analyze a sensing electrode for detecting plasma induced by laser drilling. Through an embedded development system, the plasma signal is sent to the controller in real-time. The study found that real-time detection significantly increased the number of sensing pulses and drilling depth, and improved drilling parameters such as diameter, time, and taper angle.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Engineering, Biomedical
Lucas Bertinetti Lopes, Guilherme Brasil Pintarelli, Carla Sales Ferreira dos Santos, Daniela Ota Hisayasu Suzuki
Summary: Electrochemotherapy (ECT) relies on a pulsed electric field (PEF) to treat tumors, but the distribution of PEF may be affected by the conductivity and structure of biological tissue. Through experiments and numerical simulations, the optimal gel conditions can be determined to enhance treatment efficacy.
MEDICAL ENGINEERING & PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Vidyadhar Peesapati, Christos Zachariades, George Callender, Siyu Gao, Oliver Cwikowski, Richard Gardner
Summary: This paper reports the investigation of incipient fault mechanisms of a widely used family of Cable Sealing Ends (CSEs), revealing that the earthed metallic clip used in the CSEs causes localized electric field enhancement and movement of impurities in the oil. The simulation results are supported by accelerated ageing tests and partial discharge (PD) testing, which show degradation of the semi-conducting tape and tracking on the surface of the stress cone originating from the edges of the clip. The intermittent nature of PD activity poses a risk to accurate condition assessment if continuous monitoring is not employed.
Article
Mathematics, Interdisciplinary Applications
Jose Oscar Gonzalez-Cervantes, Juan Bory-Reyes
Summary: In this paper, a fractional analog of the Borel-Pompeiu formula is established in a theoretical setting involving a fractional psi-Fueter operator that depends on an additional vector of complex parameters with fractional real parts. This serves as the first step towards developing a fractional psi-hyperholomorphic function theory and the related operator calculus.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2022)
Article
Mathematics, Applied
J. Oscar Gonzalez-Cervantes, Juan Bory-Reyes
Summary: The history of Bergman spaces dates back to the early fifties, with numerous papers devoted to this area. Key works provide a comprehensive summary and historical context, freeing researchers from having to refer to missing details.
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
(2022)
Article
Mathematics, Applied
Ricardo Abreu Blaya, Daniel Alfonso Santiesteban, Juan Bory Reyes, Arsenio Moreno Garcia
Summary: Euclidean Clifford analysis is a well-established theory in higher-dimensional Euclidean space, which has various applications. Inframonogenic functions, characterized by certain elliptic properties associated with the orthogonal Dirac operator in R-m, arise due to the noncommutativity of the geometric product in Clifford algebras. The main question addressed in this article is whether a higher-order Lipschitz function on the boundary of a Jordan domain can be decomposed into the sum of two boundary values of a sectionally inframonogenic function with a jump across the boundary.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2022)
Article
Physics, Multidisciplinary
Jazmin S. De la Cruz-Garcia, Juan Bory-Reyes, Aldo Ramirez-Arellano
Summary: Decision trees are data mining tools that create tree-like models. This paper introduces a decision tree based on a two-parameter fractional Tsallis entropy, which can generate a more sensitive measure for classification.
Article
Mathematics, Interdisciplinary Applications
J. O. S. E. O. S. C. A. R. GONZALEZ-CERVANTES, J. U. A. N. BORY-REYES
Summary: This paper continues our previous work on fractional operator calculus in quaternionic structures and extends it to holomorphic functions in two complex variables. By introducing additional complex parameters, the study proves analogues of Stokes and Borel-Pompieu formulas.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2022)
Article
Mathematics
Jose Luis Serrano Ricardo, Ricardo Abreu Blaya, Juan Bory Reyes, Jorge Sanchez Ortiz
Summary: The purpose of this paper is to solve a type of Riemann-Hilbert boundary value problem associated with two orthogonal bases in Euclidean space R-m. Using Clifford analysis, an explicit expression of the solution for this problem in a Jordan domain with a fractal boundary is obtained. Since the study involves a second-order differential operator, the boundary data is restricted to the higher order Lipschitz class.
GEORGIAN MATHEMATICAL JOURNAL
(2022)
Article
Mathematics, Applied
Jose Oscar Gonzalez-Cervantes, Juan Bory-Reyes
Summary: In this paper, we combine the fractional psi-$$ \psi - $$hyperholomorphic function theory with the fractional calculus with respect to another function. As a main result, a fractional Borel-Pompeiu type formula related to a fractional psi-$$ \psi - $$Fueter operator with respect to a vector-valued function is proved.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Mathematics, Applied
Jose Oscar Gonzalez-Cervantes, Daniel Gonzalez-Campos, Juan Bory-Reyes
Summary: We provide some characterizations of Lipschitz type spaces of slice regular functions in the unit ball of the skew field of quaternions with prescribed modulus of continuity.
ANALYSIS AND MATHEMATICAL PHYSICS
(2022)
Article
Engineering, Multidisciplinary
Juan Bory-Reyes, Marco Antonio Perez-de la Rosa, Yudier Pena-Perez
Summary: This work introduces a fractional generalization of the classical Moisil-Teodorescu operator, providing a concise mathematical formulation for physical systems in various branches of science and engineering. The Stillinger's formalism is combined with quaternionic analysis in a novel way, and a quaternionic reformulation of a fractional time-harmonic Maxwell system is established, demonstrating a deep relation between its solutions and those of the perturbed fractional Moisil-Teodorescu operator. Furthermore, the fractional constructions here will have further applications in areas such as hydrodynamics and magneto hydrodynamics.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Mathematics, Applied
Jose Oscar Gonzalez-Cervantes, Dante Arroyo-Sanchez, Juan Bory-Reyes
Summary: In this paper, we prove a Cauchy's integral theorem and a Cauchy-type formula for certain inhomogeneous Cimmino system from the perspective of quaternionic analysis. The second part of the paper focuses on the applications of these results, particularly in four types of weighted Bergman spaces, reproducing kernels, projection, and conformal invariant properties.
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
(2023)
Article
Mathematics, Applied
Jose Oscar Gonzalez-Cervantes, Juan Bory-Reyes
Summary: Quaternionic analysis is a branch of classical analysis that studies the generalizations of Cauchy-Riemann equations in the quaternion skew field. In this study, we focus on II-valued (theta, u)-hyperholomorphic functions related to the kernel of the Helmholtz operator. Our goal is to discuss the theory of Bergman spaces for these functions in domains of C-2. We obtain various assertions, such as the existence of a reproducing kernel and their covariant and invariant properties.
COMPLEX ANALYSIS AND OPERATOR THEORY
(2023)
Article
Mathematics, Applied
Jose Oscar Gonzalez-Cervantes, Juan Bory-Reyes
Summary: The purpose of this paper is to establish a Borel-Pompeiu type formula generated from a fractional bicomplex (theta, phi)-weighted Cauchy-Riemann operator, where the weights are two hyperbolic orthogonal bicomplex functions and the fractionality is understood in the sense of Riemann-Liouville and Caputo approaches.
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
(2023)
Article
Mathematics, Applied
Daniel Alfonso Santiesteban, Ricardo Abreu Blaya, Juan Bory Reyes
Summary: In the framework of Clifford analysis, we consider boundary value problems for a second-order elliptic system of partial differential equations with bilinear vector-valued boundary conditions. The spectral properties of the sandwich operator are investigated using Fredholm theory. It is found that the problem-solving properties generally fail when the standard Dirac operator is replaced by those obtained via unusual orthogonal bases of Double-struck capital Rm$$ {\mathrm{\mathbb{R}}}<^>m $$.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Mathematics, Interdisciplinary Applications
Aldo Ramirez-Arellano, Jazmin-Susana De-la-Cruz-Garcia, Juan Bory-Reyes
Summary: This article introduces the fractional (q, q')-information dimension and its dual version of entropy for complex networks. Experiments show that the fractional (q, q')-information dimension captures the complexity of network topology better than the classical information dimension based on Shannon entropy.
FRACTAL AND FRACTIONAL
(2023)
Article
Social Sciences, Mathematical Methods
Aldo Ramirez-Arellano, Jose Maria Sigarreta Almira, Juan Bory Reyes
Summary: This study introduces the fractional online learning rate (fOLR) model, which is based on the nonlinearity of individual students' learning pathway networks constructed from Learning Management System log files. The results show that the fOLR is a better model with a nonlinear relationship with overall grades. Additionally, student engagement has an impact on performance, highlighting the importance of designing enjoyable and engaging learning activities for improved learning achievements.
NONLINEAR DYNAMICS PSYCHOLOGY AND LIFE SCIENCES
(2022)
