Article
Astronomy & Astrophysics
M. J. Neves, Jorge B. de Oliveira, L. P. R. Ospedal, J. A. Helayel-Neto
Summary: This paper reassesses nonlinear electrodynamic models to investigate the kinematics of the Compton effect in a magnetic background. The study presents a general non-linear Lagrangian, extended Maxwell-like equations, and discusses energy-momentum tensor conservation. Dispersion relations are computed up to second order in the propagating wave, obtaining the refraction index and group velocity for the propagating radiation. Specific focus is given to the Compton effect kinematics in the presence of external magnetic fields, yielding constraints relating the derivatives of the general Lagrangian to the field invariants and magnetic background. Inspection is carried out on specific nonlinear electrodynamic effective models.
Article
Physics, Particles & Fields
A. C. Aguilar, M. N. Ferreira, D. Ibanez, B. M. Oliveira, J. Papavassiliou
Summary: In this study, we show through explicit calculations that the same distinct realization of the Slavnov-Taylor identity persists in the case of the background three-gluon vertex. The analysis is carried out at the level of the exact Schwinger-Dyson equation for this vertex, without any truncations or simplifying assumptions. The final result is obtained through extensive cancellations, without the need for explicit integrations. Additionally, we highlight that background Ward identities can be obtained by replacing derivatives of propagators with zero-momentum background-gluon insertions, similar to standard properties of Abelian gauge theories. Finally, we briefly discuss potential applications of these results.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Engineering, Multidisciplinary
Tomohiro Morita, Seiya Watanabe, Shinya Sasaki
Summary: This article introduces a multiaxis printing method to solve some problems in traditional gel printing technology. By changing the extruding direction, this method can achieve seamless stacking between layers and improve the accuracy of printing dimensions and shapes.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2023)
Article
Astronomy & Astrophysics
Jonathan Tot, Balkar Yildirim, Alan Coley, Genly Leon
Summary: We present a comprehensive (compactified) dynamical systems analysis of the Quintom model consisting of an interacting quintessence scalar field and a phantom. By finding a range of parameters Kappa and lambda, we identify expanding Quintom cosmologies that undergo two inflationary periods, unaffected by spatial curvature. We also discuss a class of bouncing cosmologies and examine the linear cosmological perturbations.
PHYSICS OF THE DARK UNIVERSE
(2023)
Article
Mechanics
J. Spendlove, X. Xu, T. Schenkel, M. A. Seaton, I Halliday, J. P. Gunn
Summary: The developed method is capable of simulating vesicles, including erythrocytes, by implementing an immersed boundary force in an adaptive interfacial region. It offers a transparent methodology, stability at high levels of deformation, and potential for simulating multiple erythrocytes. The model's utility is demonstrated through examination of steady-state properties and dynamical behavior within shear flow, highlighting its stability in handling high deformations and interactions with other vesicles.
Article
Chemistry, Analytical
Seong Hyun Kim, Sunwon Jeong, Sungbum Park, Ju Yong Chang
Summary: This paper proposes a camera motion agnostic approach for predicting 3D human pose and mesh defined in the world coordinate system. By estimating the difference between two adjacent global poses instead of the global pose coupled to the camera motion, it addresses the issue of estimating pure pose and motion in a moving camera environment.
Article
Astronomy & Astrophysics
Ariel Arza, Abaz Kryemadhi, Konstantin Zioutas
Summary: The axion dark matter echo technique is a method that aims to search for dark matter by detecting the electromagnetic echo from stimulated decay of ambient dark matter. This study considers deviations from the standard halo model in the form of fine grained streams and shows that the echo method is very sensitive to particular local axion dark matter distributions. The extremely small dispersion of the streams improves the sensitivity of the echo method in the axion-photon coupling up to two orders of magnitude.
Article
Astronomy & Astrophysics
Dimitrios Metaxas
Summary: In an Abelian gauge theory with a complex scalar field and massless chiral fermions, this study focuses on the radiative symmetry breaking induced by couplings and interactions. Nielsen identities are derived and verified to ensure gauge independence of the physical fermion mass in the broken phase of the effective action.
Article
Multidisciplinary Sciences
Ming Wen, Zhi Ye, Danhua Lin, Weidong Wang
Summary: This study examined the dimensionality, reliability, and validity of a Chinese version of the 5C Model of positive youth development (PYD) in a sample of rural and urban young adolescents in China. The results showed that the Chinese version of the 5C PYD Scale is a reliable and valid instrument, with good construct validity for Chinese young adolescents.
Article
Psychology, Developmental
Ricarda Ullrich, Michael Becker, Jan Scharf
Summary: This study examines the development of gender role attitudes from adolescence to emerging adulthood and finds that teenagers develop more egalitarian attitudes during this period. Differences between sexes decrease over time but remain significant. Socioeconomic status seems less relevant, while adolescents with lower intelligence scores develop more egalitarian gender role attitudes during adolescence.
JOURNAL OF YOUTH AND ADOLESCENCE
(2022)
Article
Computer Science, Information Systems
Xiaoyu Zhou, Wien Hong, Guangsong Yang, Tung-Shou Chen, Jeanne Chen
Summary: This paper presents an advanced grayscale-invariant authentication method for color images that modifies the most significant bits of the red and blue channels to generate authentication codes with minimal distortion. By adjusting the green channel and utilizing pixel substitution and constraint-reduced strategies, this method effectively reduces image distortion and improves detection results.
JOURNAL OF KING SAUD UNIVERSITY-COMPUTER AND INFORMATION SCIENCES
(2023)
Article
Computer Science, Interdisciplinary Applications
Antonio Marzola, Kathleen S. McGreevy, Federico Mussa, Yary Volpe, Lapo Governi
Summary: This article introduces a new reconstruction method called HyM3D, which can automatically restore defects on the surface of the cranium while ensuring symmetry and continuity. By combining template-based methods with surface interpolation algorithms, this method has been proven reliable and effective, even in complex cases, without requiring user intervention.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2023)
Article
Multidisciplinary Sciences
Aaron Quiskamp, Ben T. McAllister, Paul Altin, Eugene N. Ivanov, Maxim Goryachev, Michael E. Tobar
Summary: The SMASH model predicts the existence of axion dark matter particles within the mass range of 50 to 200 micro-electron volts. The ORGAN experiment in Australia conducted a scan within the mass range of 63.2 to 67.1 micro-electron volts using a microwave cavity axion haloscope, and obtained a highly sensitive result that sets an upper limit on the coupling of axions to two photons, excluding the well-motivated axion-like particle cogenesis model for dark matter.
Article
Astronomy & Astrophysics
Rikpratik Sengupta, Shounak Ghosh, Mehedi Kalam, Saibal Ray
Summary: This article explores the possibility of constructing a traversable wormhole on the Randall-Sundrum braneworld using non-exotic matter and the Kuchowicz potential. The shape function and properties of the wormhole are studied, including the validity of the null energy condition. Model parameters are evaluated using the junction conditions at the surface of the wormhole. The surface density, surface pressure, and radial and tangential tidal constraints are also analyzed. The article further discusses the implications of the findings on the brane tension and the potential detection of a wormhole.
CLASSICAL AND QUANTUM GRAVITY
(2022)
Article
Physics, Multidisciplinary
C. Bartram, T. Braine, E. Burns, R. Cervantes, N. Crisosto, N. Du, H. Korandla, G. Leum, P. Mohapatra, T. Nitta, L. J. Rosenberg, G. Rybka, J. Yang, John Clarke, I Siddiqi, A. Agrawal, A. Dixit, M. H. Awida, A. S. Chou, M. Hollister, S. Knirck, A. Sonnenschein, W. Wester, J. R. Gleason, A. T. Hipp, S. Jois, P. Sikivie, N. S. Sullivan, D. B. Tanner, E. Lentz, R. Khatiwada, G. Carosi, N. Robertson, N. Woollett, L. D. Duffy, C. Boutan, M. Jones, B. H. LaRoque, N. S. Oblath, M. S. Taubman, E. J. Daw, M. G. Perry, J. H. Buckley, C. Gaikwad, J. Hoffman, K. W. Murch, M. Goryachev, B. T. McAllister, A. Quiskamp, C. Thomson, M. E. Tobar
Summary: Our experiment reported results from a haloscope search for axion dark matter, excluding the axion-photon coupling predicted by a benchmark model. The sensitivity was achieved through the use of a large-volume cavity, a superconducting magnet, an ultra low noise Josephson parametric amplifier, and subKelvin temperatures. The validity of the detection procedure was ensured by injecting and detecting blind synthetic axion signals.
PHYSICAL REVIEW LETTERS
(2021)
Article
Biochemistry & Molecular Biology
Pezhman Shiri, Ali Mohammad Amani, Jasem Aboonajmi
Summary: This study presents an effective method for the synthesis of a variety of thioethers via the one-step reaction of benzyl halides, aryl halides, and thiourea, achieving multiple thioethers without requiring thiols as starting compounds. The nanocatalyst demonstrated excellent recyclability and high yields of thioethers under mild conditions. Highlights of this method include one-pot and multi-component synthesis, green reaction media, high nanocatalyst activity, simple separation of products, and high regioselectivity.
MOLECULAR DIVERSITY
(2022)
Article
Chemistry, Multidisciplinary
Ali Mohammad Amani, Arash Alami, Mostafa Shafiee, Reza Sanaye, Fatemeh Sadat Dehghani, Mohammad Atefi, Mohammad Ali Zare, Farshid Gheisari
Summary: By using zein nanoparticles and MWCNTs, a bio-nanocomposite was created to modify glass carbon electrodes, resulting in an economical and efficient electrochemical biosensor for detecting dopamine and uric acid in biological samples. The modified electrode demonstrated good morphology and electrochemical behavior. Transmission electron microscopy (TEM), field emission-scanning electron microscopy (FE-SEM), cyclic voltammetry (CV), and differential pulse voltammetry (DPV) were used for characterization. The electrode showed high selectivity and stability, and could detect dopamine and uric acid even in the presence of interfering substances.
Article
Green & Sustainable Science & Technology
Nameer Al Khafaf, Ahmad Asgharian Rezaei, Ali Moradi Amani, Mahdi Jalili, Brendan McGrath, Lasantha Meegahapola, Arash Vahidnia
Summary: Advanced metering infrastructure is widely recognized as a key factor for delivering benefits to the electricity industry and energy consumers. Data is used for billing, educating consumers, driving new energy technologies, and making evidence-based policy decisions. In-depth analysis of data can lead to recommendations for distribution network operators and policymakers.
Article
Materials Science, Multidisciplinary
Fatemehsadat Dehghani, Saied Shahmoradi, Matin Naghizadeh, Tahereh Firuzyar, Ahmad Vaez, Seyed Reza Kasaee, Ali Mohammad Amani, Sareh Mosleh-Shirazi
Summary: Graphene-based nanocomposites with excellent antibacterial properties were successfully synthesized using a green synthesis method. The nanocomposites showed uniform distribution of CoFe2O4 nanoparticles on the graphene basal planes and exhibited significant antimicrobial activity without cytotoxicity. These findings suggest that the graphene-based nanocomposites have great potential for advanced antimicrobial biomedical instruments.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Physics, Nuclear
Amos S. Kubeka, Alireza Amani
Summary: This paper investigates the modified Schwarzschild white hole in the presence of the cosmological constant and reveals that its thermal properties are analogous to those of our universe, contrary to previous studies.
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
(2022)
Review
Biochemistry & Molecular Biology
Pezhman Shiri, Sorour Ramezanpour, Ali Mohammad Amani, Wim Dehaen
Summary: Angiogenesis is an important scientific subject in the field of malignant tumors, with current research focusing on the role of blood microvessels in cancer cell proliferation, tumor growth, and metastasis. Tyrosine kinases have been identified as therapeutic targets that influence angiogenesis in tumor growth. This review aims to track the advancements in the total synthesis of three receptor tyrosine kinase inhibitors and examines the purification process of these anticancer medicines. Notably, different patents may report varying procedures and yields for the synthesis of the desired drugs and their intermediates.
MOLECULAR DIVERSITY
(2022)
Article
Materials Science, Multidisciplinary
Amir Atapour, Hossein Khajehzadeh, Mostafa Shafie, Milad Abbasi, Sareh Mosleh-Shirazi, Seyed Reza Kasaee, Ali Mohammad Amani
Summary: Early detection of cancer is crucial for timely treatment. The development of nanometer-scale biosensors, such as gold nanoparticle-based aptasensors, offers high sensitivity and adaptability for detecting cancer biomarkers. These sensors have great potential in early cancer diagnosis and therapy.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Ali Mohammad Amani, Peyman Danaie, Ahmad Vaez, Razieh Gholizadeh, Tahereh Firuzyar, Fatemehsadat Dehghani, Sareh Mosleh-Shirazi
Summary: Superparamagnetic zinc ferrite nanoparticles with an average diameter of 20-30 nm were successfully biosynthesized in this study. The nanoparticles exhibited superparamagnetic properties and showed potential applications in biomedical fields. The experimental results were consistent with the theoretical calculations.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Pharmacology & Pharmacy
Amir Hossein Meisami, Milad Abbasi, Sareh Mosleh-Shirazi, Arezo Azari, Ali Mohammad Amani, Ahmad Vaez, Ali Golchin
Summary: Cancer is a dangerous and life-threatening disease, and micro/nanomotors play an important role in cancer treatment. This paper introduces the progress of micro/nanomotors in cancer detection and treatment, including targeted drug delivery and imaging-guided therapy, as well as discussing the challenges encountered in the medical process. Furthermore, this paper explores the potential growth of micro/nanomotors in medical applications and future research directions.
EUROPEAN JOURNAL OF PHARMACOLOGY
(2022)
Article
Physics, Nuclear
S. Ganjizadeh, Alireza Amani, M. A. Ramzanpour
Summary: In this study, we examine an open system with an adiabatic FRW universe model where particle creation takes place within the system. A modified continuity equation is derived and made to correspond to the original continuity equation.
Article
Materials Science, Ceramics
Sareh Mosleh-Shirazi, Seyed Reza Kasaee, Fatemehsadat Dehghani, Hesam Kamyab, Irina Kirpichnikova, Shreeshivadasan Chelliapan, Tahereh Firuzyar, Mohammadreza Akhtari, Ali Mohammad Amani
Summary: Plasmonic photothermal therapy (PPTT) using nanoparticles as a treatment for cancer has gained attention. In this study, CoFe2O4 and ZnFe2O4 nanoparticles were synthesized using Rutin extract and applied for PPTT of breast cancer cells. The nanoparticles exhibited favorable properties for magnetic hyperthermia therapy and showed significant photothermal efficacy against cancer cells. The low toxicity of the nanoparticles to normal cells was also demonstrated.
CERAMICS INTERNATIONAL
(2023)
Article
Astronomy & Astrophysics
E. Mahichi, Alireza Amani
Summary: In this study, we investigate the viscous f(T, B) gravity model as a source of dark energy and the Extended Bose-Einstein Condensate (EBEC) as a source of dark matter in a flat-FRW metric. By considering bulk viscosity, we derive the Friedmann equations and write continuity equations for dark energy and dark matter in an interacting manner. We use the generalized Gross-Pitaevskii equation to obtain the Equation of State (EoS) for dark matter in the EBEC regime. This work provides a comprehensive understanding of the different epochs of the universe and describes the nature of the dark components using the viscous f(T, B) gravity and the EBEC regime.
PHYSICS OF THE DARK UNIVERSE
(2023)
Article
Materials Science, Multidisciplinary
Leili Shabani, Seyed Reza Kasaee, Shreeshivadasan Chelliapan, Milad Abbasi, Hossein Khajehzadeh, Fatemeh Sadat Dehghani, Tahereh Firuzyar, Mostafa Shafiee, Ali Mohammad Amani, Sareh Mosleh-Shirazi, Ahmad Vaez, Hesam Kamyab
Summary: Recently, laser photothermal therapy of cancers has gained attention as a new adjuvant treatment. Nanoparticles, particularly gold nanoparticles (Au NPs), have been utilized to enhance the effectiveness of plasmonic photothermal therapy (PPTT) with reduced side effects. In this study, Au NPs were green-synthesized using Rutin extract and evaluated through various techniques. The results revealed the selective and effective anticancer function of Ru-Au NPs, along with low cytotoxicity and better biocompatibility for normal cells. Additionally, the combination of Ru-Au NPs and laser radiation showed significant efficacy in treating breast cancer cells.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Astronomy & Astrophysics
E. Mahichi, Alireza Amani, M. A. Ramzanpour
Summary: This paper studies the F(R,G) gravity model with an interacting model in a viscous fluid and explores the properties of dark matter and dark energy by employing Einstein equation, energy density, pressure, continuity equations, and the equation of state. The authors reconstruct the Friedmann equations in terms of the redshift parameter and fit the model with supernova data, finding that the universe is currently undergoing an accelerated expansion phase. The stability of the model is also investigated using the sound speed parameter.
MODERN PHYSICS LETTERS A
(2022)
Article
Astronomy & Astrophysics
Nelson R. F. Braga, Octavio C. Junqueira
Summary: This study investigates the influence of rotation on the transition temperature of strongly interacting matter produced in non-central heavy ion collisions. By using a holographic description of an AdS black hole, the authors extend the analysis to the more realistic case where the matter spreads over a region around the rotational axis. The results show the coexistence of confined and deconfined phases and are consistent with the concept of local temperature in rotating frames developed by Tolman and Ehrenfest.
Article
Astronomy & Astrophysics
Bing Sun, Jiachen An, Zhoujian Cao
Summary: This paper investigates the effect of gravitational constant variation on the propagation of gravitational waves. By employing two analytical methods, the study finds that variations in the gravitational constant result in amplitude and phase corrections for gravitational waves, and the time variation of the gravitational constant can be constrained through the propagation of gravitational waves.
Article
Astronomy & Astrophysics
Abdellah Touati, Zaim Slimane
Summary: This letter presents the first study of Hawking radiation as a tunneling process within the framework of non-commutative gauge theory of gravity. The non-commutative Schwarzschild black hole is reconstructed using the Seiberg-Witten map and the star product. The emission spectrum of outgoing massless particles is computed using the quantum tunneling mechanism. The results reveal pure thermal radiation in the low-frequency scenario, but a deviation from pure thermal radiation in the high-frequency scenario due to energy conservation. It is also found that noncommutativity enhances the correlations between successively emitted particles.
Article
Astronomy & Astrophysics
Shahar Hod
Summary: The travel times of light signals between two antipodal points on a compact star's surface are calculated for two different trajectories. It is shown that, for highly dense stars, the longer trajectory along the surface may have a shorter travel time as measured by asymptotic observers. A critical value of the dimensionless density-area parameter is determined for constant density stars to distinguish cases where crossing through the star's center or following a semi-circular trajectory on the surface has a shorter travel time as measured by asymptotic observers.
