Theory Of Transmission Research Articles

Study of the parametric effect of the wave profiles of the time-space fractional soliton neuron model equation arising in the topic of neuroscience

Time-space fractional nonlinear problems (T-SFNLPs) play a crucial role in the study of nonlinear wave propagation. Time-space nonlinearity is prevalent across various fields of applied science, nonlinear dynamics, mathematical physics, and engineering, including biosciences, neurosciences, plasma physics, geochemistry, and fluid mechanics. In this context, we examine the time-space fractional soliton neuron model (TSFSNM), which holds significant importance in neuroscience. This model explains how action potentials are initiated and propagated by axons, based on a thermodynamic theory of nerve pulse transmission. The signals passing through the cell membrane (CM) are proposed to take the form of solitary sound pulses, which can be represented as solitons. To investigate these soliton solutions, nonlinear fractional differential equations (NLFDEs) are transformed into corresponding partial differential equations (PDEs) using a fractional complex transform (FCT). The Kudryashov method is then applied to determine the wave profiles for the TSFSNM equation. We present 3D, 2D, contour, and density plots of the TSFSNM equation, and further analyze how fractional and time-space parameters influence these wave profiles through additional graphical representations. Kink, singular kink and different types of soliton solutions are successfully recovered through the Kudryashov method. The outcomes of various studies show that the applied method is highly efficient and well-suited for tackling problems in applied sciences and mathematical physics. Graphical representations, coupled with numerical data, reinforce the validity and accuracy of the technique. The proposed method is a convenient and powerful tool for handling the solution of nonlinear equations, making it particularly effective in exploring complex wave phenomena in diverse scientific fields.

Chronicity of Violence Foretold: Toward an Integrated Theory of Intimate Partner Violence.

Intimate partner violence (IPV) is a worldwide social problem. The current study explores underlining mechanisms of phenomenon by tying together intergenerational transmission theory, socialization theory, and trauma theory. It learns from men how the father figure shaped by their childhood experiences has contributed to their violence, how the father's socialization to manhood has affected their intimate relations, and how they understand the effect of being exposed to the father's violence on their own intimate relationships and violence. Interviews with 25 Israeli men were analyzed thematically in the phenomenological approach. Thematic analysis revealed five themes describing men's experiences of their father's aggression and detachment; men's experience of their intimate relations; men's image of women; men's fear of being infected or conquered by their partners' emotionality; and an overarching theme describing the understanding that men and women are destined to live in an intractable conflict that only violence can end. The interviewees explained that when hardened detached men raised by violent fathers interact with an emotional woman, they experience painful feelings and are threatened by her emotionality; consequently, they will use violence against that threat to stop their pain. The findings support a multidimensional integrative perspective of IPV and call for a theoretical synthesis of these men's models of violence. Implications for future research and practice are discussed.

Seeking friends and influencers: business and labor groups lobbying in the Chilean congress

Abstract This study analyzes direct lobbying in the Chilean Congress, contributing to the debate over which legislators are targeted by interest groups. Utilizing a comprehensive dataset constructed from legally mandated records of lobbying meetings, we test theoretical implications predominantly derived from the US context within a different presidential democracy. The focus is on the legislative targets of business and labor groups. The results reveal a marked preference for lobbying allies, aligning with recent theories of information transmission and legislative subsidies. This pattern holds true for both business and labor groups and highlights the significance of ideological alignment for legislative lobbying in Chile. Additionally, the study finds that legislators with influential positions, such as those on key committees or centrally located in the bill collaboration network, are more frequently targeted. This research provides key insights into the dynamics of legislative lobbying in a non-US context, underscoring the generalizability of established theoretical frameworks.

Characteristic Times for Gap Relaxation and Heat Escape in Nanothin NbTi Superconducting Filaments: Thickness Dependence and Effect of Substrate.

We measured the temporal voltage response of NbTi superconducting filaments with varied nanoscale thicknesses to step current pulses that induce non-equilibrium superconducting states governed by a hot spot mechanism. Such detected voltage emerges after a delay time td, which is intimately connected to the gap relaxation and heat escape times. By employing time-dependent Ginzburg-Landau theory to link the delay time to the applied current, we determined that the gap relaxation time depends linearly on film thickness, aligning with the acoustic mismatch theory for phonon transmission at the superconductor-substrate interface. We thereby find a gap relaxation time of 104 ps per nm of thickness for NbTi films on polished sapphire. We further show that interfacial interaction with the substrate significantly impacts the gap relaxation time, with observed values of 9 ns on SiOx, 6.8 ns on fused silica, and 5.2 ns on sapphire for a 50 nm thick NbTi strip at T=5.75 K. These insights are valuable for optimizing superconducting sensing technologies, particularly the single-photon detectors that operate in the transient regime of nanothin superconducting bridges and filaments.

An integrated machine-learning model to predict nucleosome architecture.

We demonstrate that nucleosomes placed in the gene body can be accurately located from signal decay theory assuming two emitters located at the beginning and at the end of genes. These generated wave signals can be in phase (leading to well defined nucleosome arrays) or in antiphase (leading to fuzzy nucleosome architectures). We found that the first (+1) and the last (-last) nucleosomes are contiguous to regions signaled by transcription factor binding sites and unusual DNA physical properties that hinder nucleosome wrapping. Based on these analyses, we developed a method that combines Machine Learning and signal transmission theory able to predict the basal locations of the nucleosomes with an accuracy similar to that of experimental MNase-seqbased methods.

Liquid microlens compound structure for enhanced sub-micron resolution imaging and accelerated reconfigurable deformation manipulation

The optical observation of sub-micron structures encounters significant challenges due to the inadequate spatial shape matching of optical devices and the limitations imposed by diffraction. These factors result in suboptimal imaging resolution and the introduction of defocus distortion. One approach to mitigating these limitations involves utilizing a liquid microlens (LML) assisted microscope, which offers real-time and localized control capabilities. However, the dynamic tuning of LML is subject to volatility and instability, adversely affecting sub-micron resolution imaging. To address this issue, a contour-following coating inspired by the natural cornea is applied to the droplet's surface, resulting in the formation of liquid microlens compound structures (LMLCS). Firstly, photoresist microholes are fabricated on the optical disc. Then, liquid self-assembly technology is used to fill glycerol in the microholes. At last, a conformal spreading method of UV-curable adhesive precursor film is developed to ensure the combination of the microlens bilayer structure. Through the application of optical information transmission theory, finite difference time domain (FDTD) method, and the principle of Abbe microscopic imaging, the imaging magnification process and sub-micron resolution characteristic of the LMLCS are revealed. Remarkably, the obtained focal width at half maximum (FWHM) of 1.54 μm is smaller than the theoretical value, enabling reconfigurable sub-micron resolution observation and 1.63 times imaging magnification of 226 nm grating lines under the optical microscope. Compared with unencapsulated LML, this compound structure exhibits better sub-micron resolution capability, greater imaging magnification, and faster adaptive dynamic response characteristics. Consequently, the LMLCS introduces exciting prospects for exploring optical sub-micron measurement and sensing devices with exceptional performance.

Insights into the Synaptic Properties of Dopamine Release Revealed by Single Walled Carbon Nanotube Biosensors

It is thought that there are two distinct modes of chemical neurotransmission, referred to as fast (synaptic) transmission and slow (volume) transmission. Fast transmission, mediated by ligand-gated ionotropic receptors, operate with millisecond temporal and nanometer spatial precision in excitatory and inhibitory synapses, primarily mediated by glutamate and GABA, respectively. In contrast, slow transmission relies on activation of G-protein coupled receptors (GPCRs) and is mediated by several classes of neuromodulators, including dopamine. Neuromodulators are thought to operate at temporal scales that range from hundreds of milliseconds to minutes, with a spatial specificity that is insufficiently understood but generally described as “diffuse”. In this work, we provide new evidence that shows the spatial precision of dopamine transmission is highly reminiscent of the spatial properties of signaling mediated by the fast acting neurotransmitters.To gain this insight, we used an optical assay named “DopaFilm” that is based on oligonucleotide functionalized single walled carbon nanotube dopamine sensors (nanosensors). Primary dopaminergic neurons were grown on top of glass coverslips functionalized with nanosensors, which enabled visualization of dopamine exocytosis events in single release sites under a continuous 785nm excitation laser. In axonal arbors, DopaFilm can report evoked and spontaneous dopamine release events with high signal to noise ratios of up to 50. Recording on DopaFilm revealed dopamine release is fast, calcium-dependent, and reliant on similar presynaptic protein machinery employed by fast neurotransmitters. These findings challenge the notion that dopamine is a slow transmitter; however it doesn’t preclude the possibility of imprecise spatial signaling, consistent with volume transmission theory. More recent data from our lab now challenges the spatial characteristics of volume transmission model as currently understood in the literature. In this talk, I will discuss new insights gained on dopamine signaling including clear examples of precise spatial arrangements of dopamine release sites, and ultrastructural, biochemical and spatial transcriptomic data that shows that neuromodulatory action can be highly spatially precise in nature.

Analysis of Student Brawls in Junior High School 'X' Viewed from the Theory of Cultural Transmission

Analysis of Student Brawls in Junior High School 'X' Viewed from the Theory of Cultural Transmission

Temporal coupled-mode theory of light transmission through mirror-symmetric metal-insulator-metal cavity arrays

Temporal coupled-mode theory of light transmission through mirror-symmetric metal-insulator-metal cavity arrays

A szóbeliségtől az írásbeliségig – és vissza? Jegyzetek Albert Wesselski korai munkássága kapcsán

This paper attempts to present the intellectual legacy of Albert Wesselski (Vienna, 1871–Prague, 1939), a partly forgotten great figure of literary and textual folkloristic comparatistics of the first half of the 20th century, and argues for his timeliness. While he also played an important role as a literary mediator and translator (e.g. translations and interpretations of Boccaccio and Dante, translations of medieval Italian, French and Flemish folklore texts), he was primarily concerned with questions of the origins of European and Asian fairy tales, the problem of the processes of transmission and genre theory. He presented the transnational and transcontinental connections between individual (fairy-tale) texts in his reflections, which were based on his exceptional erudition and knowledge of the material. His views on the essentially literary origins of fairy-tale material were disputed by many in his day, but at least some of them now seem to be confirmed. His comparative method can be an inspiration for those working with folklore and literary texts, both here and now. The present paper attempts to provide a sketchy overview of the early stages of Wesselski’s oeuvre and to inspire further reflection.

Solitonic solutions and stability analysis of Benjamin Bona Mahony Burger equation using two versatile techniques

This study aims to explore the precise resolution of the nonlinear Benjamin Bona Mahony Burgers (BBMB) equation, which finds application in a variety of nonlinear scientific disciplines including fluid dynamics, shock generation, wave transmission, and soliton theory. Within this paper, we employ two versatile methodologies, specifically the extended exp(-Ψ(χ))\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\exp (-\\Psi (\\chi ))$$\\end{document} expansion technique and the novel Kudryashov method, to identify the exact soliton solutions of the nonlinear BBMB equation. The solutions we discovered involve trigonometric functions, hyperbolic functions, and rational functions. The uniqueness of this research lies in uncovering the bright soliton, kink wave solution, and periodic wave solution, and conducting stability analysis. Furthermore, the solutions’ graphical characteristics were explored through the utilization of the mathematical software Maple 2022 (https://maplesoft.com/downloads/selectplatform.aspx?hash=61ab59890f2313b2241fde3423fd975e). The system’s physical interpretation is defined through various types of graphs, including contour graphs, 3D-surface graphs, and line graphs, which use appropriate parameter values. These recommended techniques hold significant importance and are applicable in diverse nonlinear evolutionary equations found in the field of nonlinear sciences for illustrating nonlinear physical models.

Помехоустойчивость когерентного приема двоичных сигналов с огибающей вида приподнятый косинус в гидроакустическом канале связи

Goals: The main purpose of this work is to develop a methodology for determining the parameters of binary signals, at which the signals become relatively invariant to frequency distortions in the marine environment. The frequency distortion of the signals is caused by the uneven frequency response of the attenuation of the marine environment. The main part of this technique is to assess the effect of frequency distortion of signals on the noise immunity of reception. In accordance with this, the error probabilities of signal receivers with various types of manipulation are determined, which are optimal in the absence of distortion. Methods: The provisions of applied hydroacoustics, the theory of random processes and the theory of transmission of discrete messages are used. The main content: The paper considered a model of a single-beam hydroacoustic communication channel, characteristic of the deep sea, when the receiver or transmitter is located in the depths of the sea. The transmission coefficient of the channel is used as a transmission coefficient with a Gaussian amplitude -frequency response and a linear phase-frequency response. The error probabilities of coherent receivers of binary signals with amplitude, frequency and phase manipulation with an envelope of the raised cosine type are determined. Coherent receivers optimal by the criterion of maximum likelihood under the action of white Gaussian noise and the absence of distortion in the marine environment are considered as receivers. A logarithmic measure of increasing the probability of error is introduced, which characterizes the deterioration of noise immunity due to frequency distortions in the channel. For some typical cases, the values of signal parameters that are relatively invariant to frequency distortions in the marine environment are determined. Results: Expressions of the error probability of coherent receivers of binary signals with amplitude, frequency and phase manipulation with an envelope of the raised cosine type are found. A logarithmic measure of the relative increase in the probability of error compared to the case of no distortion is introduced. The functional dependence of this measure on the duration of sending the signal, the carrier frequency and the initial phase of the signal, as well as on the communication range and the signal-to-noise ratio is determined. On the plane of the carrier frequency, signal duration, for each type of signal, the boundary of the region above which the signals are relatively invariant to frequency distortions in the marine environment is constructed, a comparison is made with the case of signals with a sinusoidal envelope. For communication ranges R = 1.5 km and 3 km and typical carrier frequencies, the minimum values of the duration of invariant signals are given. Expressions of the error probability of coherent receivers of binary signals with amplitude, frequency and phase manipulation with an envelope of the raised cosine type are found. A logarithmic measure of the relative increase in the probability of error compared to the case of no distortion is introduced. The functional dependence of this measure on the duration of sending the signal, the carrier frequency and the initial phase of the signal, as well as on the communication range and the signal-to-noise ratio is determined. On the plane of the carrier frequency, signal duration, for each type of signal, the boundary of the region above which the signals are relatively invariant to frequency distortions in the marine environment is constructed, a comparison is made with the case of signals with a sinusoidal envelope. For communication ranges R = 1.5 km and 3 km and typical carrier frequencies, the minimum values of the duration of invariant signals are given.

Instilling Religious Character Values in Nadran Tradition for Fisherman Communities in Banten, Indonesia

Fishermen all over the world have traditions to gather with their families and friends to give thanks for their harvest and the abundance of the sea. This study described the existence, implementation, and religious values of the Nadran tradition in the coastal areas of Pandeglang Regency of Banten, Indonesia. The research used qualitative research with the Anthropology of education as the data analysis tool, especially through cultural transmission theory. This research found that there had been a process of cultural transmission through the Nadran ceremony from one individual or group to another group. Then, in terms of context, the ceremony is still in accordance with past generations. However, in terms of content and method, there have been changes. It found that the philosophical value of the nadran tradition in the Islamic view is that culture is drawn to religion because in the Panimbang and Labuan areas, nadran events, which always used to use wayang golek (puppet shows), have now been replaced with other activities such as prayer together (istigosah), religious lectures, and other Islamic activities. It indicates the existing cultural norms inserted into Islamic religious and cultural values. Even though the buffalo head offerings are still used, this nadran expresses gratitude to God. Apart from being a tourist attraction, this nadran can also instill religious character values in the younger generation.

Monetary Policy and Bank Risk-taking

As the process of global financial integration deepens, the relationship between bank risk-taking and monetary policy has become increasingly close. In recent years, financial markets have been highly volatile and banking risks have become increasingly prominent. Against this background, the relationship between monetary policy and bank risk-taking in China is studied through both theoretical and empirical evidence, and corresponding policy recommendations are put forward. In addition, the role mechanism of monetary policy affecting bank risk is deeply explored through the theoretical aspect of monetary policy and bank risk capacity bearing, and the theoretical basis for the formulation of related policies is provided. Therefore, it explores the impact of bank risk on the transmission mechanism of monetary policy from the theory, and further improves the theory of monetary policy transmission to enhance the effectiveness and stability of monetary policy. The article analyzes and discusses the impact of monetary policy on bank risk-taking capacity, to provide a reference for the development of the financial industry.

Historical Development of Education and Learning in the Transmission of Miao Nationality Music in Yunnan Province, China

Miao Nationality music represents a profound and longstanding musical heritage from the cultural legacy of the Miao community in Yunnan Province, China. This qualitative research study endeavor aims to explore the historical development and transmission of Miao Nationality music, emphasizing its significance within the context of ethnomusicology, cultural transmission theory, and education theory. The chosen research site strategically focuses on Yunnan Province, China, especially targeting regions with substantial Miao populace and deeply entranced musical traditions. Seven key informants, including elder musicians, music educators, community leaders, and cultural enthusiasts, were purposefully sampled to provide expert insights. A thematic analysis of qualitative data gathered through interviews and observations revealed important information about the ancient roots of Miao Nationality music, how it is used in everyday life, how cultural exchanges affect it, and how important it is for traditional instruments, vocal styles, and passing down the music from one generation to the next. The study suggests strategies for safeguarding and disseminating Miao Nationality music, emphasizing cultural awareness, technological advancements, support for inheritors, environmental protection, and innovative communication methods.

The Effects of the Digital Transformation on Firm’s Trade Credit: Evidence from China

ABSTRACT This study investigates the impact of digital transformation (DT) on trade credit (TC) within Chinese A-share listed manufacturing companies from 2008 to 2020. Utilizing information asymmetry theory and signal transmission theory, the study explores the relationship between DT and TC. Our findings reveal that DT has a notably positive effect on TC, with this impact being more pronounced in privately-owned enterprises, small and medium-sized entities, and particularly those outside the high-tech industry. Additionally, DT is found to foster TC expansion through enhanced cooperation within supply chains and improved relationships with suppliers and customers. These insights offer a comprehensive understanding of how DT influences corporate TC financing behavior and have significant implications for DT practices and policy decisions.

A miniature piezoelectric actuator with fast movement and nanometer resolution

To accomplish fast movement and high positioning capability, a miniature self-moving piezoelectric actuator (MSPA) is developed with two groups of polyphenylene sulfide (PPS) transducers operating in the symmetric bending (SB) or counter symmetric bending (CSB) vibration. Each group includes the inner and outer legs, whose vibrations are orthogonal and horizontal to the ground, respectively; this interestingly imitates the stepping and swing functions of the forelimbs and hindlimbs of the gorilla in the ‘running on all fours’ gait. To examine the validity, first, by utilizing the model on the basis of Krimhertz transmission theory, the resonant frequency of the CSB vibration was structurally tuned to approach that of the SB vibration. Then, a MSPA prototype with the size of 30 × 45 × 49 mm and the weight of 25.2 g was fabricated to assess the moving, carrying, and positioning performance. In a tethered manner, the MSPA yielded the maximal speed of 562 mm/s (18.73 body length per second), the maximal payload of 485 g (19.25 times of its own weight), and the towing force of 0.5 N (corresponding to the towing force density of 19.8 N/kg). Moreover, it achieved the turning movements (whose directions, angular speeds, and steering radii are changeable) and in-situ rotations, climbed the slope of 12.5°, and moved on the curved floor. In an untethered manner, the MSPA produced the minimal step displacement of 31.9 nm. These results demonstrate that the MPSA possesses the large speed and the nanometer resolution owing to the bionic operating principle and the employment of PPS, and provides a new approach to design lightweight piezoelectric actuators.

GEOPOLITICS, UNCERTAINTY, AND CRYPTOCURRENCY: A LOVE TRIANGLE GONE WRONG

This study aims to investigate the spillover effects from geopolitical risks (proxied by the geopolitical risk index GPRD) and cryptocurrencies-related uncertainty (proxied by the Cryptocurrency Uncertainty Index UCRY) to cryptocurrencies. We utilize the Baruník and Křehlík (2018) framework to detect time-frequency connectedness. Our investigation for the period 2017 to 2022 discovers significant spillover effects from both indices (GPRD and UCRY) to cryptocurrencies. Utilizing the information transmission theory and network graphs, our findings reveal that some cryptocurrencies function as net receivers of spillovers from geopolitical risks and uncertainty in the short-term, while over longer time horizons they transform into net transmitters of spillovers to uncertainty. The study underscores the importance of comprehending how uncertainty due to various factors (geopolitical, policy changes, regulatory changes, etc.) could affect the cryptocurrencies’ markets.

Periodic transmission theory of circularly symmetric multi-ring solitons in nonlinear Schrödinger equation

In this paper, the evolution characteristics of periodic transmission of circularly symmetric multi-ring solitons in optical nonlocal materials based on nonlinear Schrödinger equation are investigated in detail. The transmission expression of circularly symmetric multi-ring solitons has been derived. It was found that the number and size of rings in these solitons can be controlled by initial parameters. The transmission of circularly symmetric multi-ring solitons is similar to that of high-order temporal solitons in nonlinear fibers, exhibiting periodic variations. When the input energy is a specific value, the statistical width of circularly symmetric multi-ring solitons remains constant during transmission, otherwise it exhibits periodic changes, which can be considered as generalized breathing solitons. The influence of various parameters on the transmission characteristics has been analyzed in detail, and some important transmission characteristics have been intuitively demonstrated through numerical simulation.

Accurate Identification Method of Small-Size Polymetallic Nodules Based on Seafloor Hyperspectral Data

Polymetallic nodules are spherical or ellipsoidal mineral aggregates formed naturally in deep-sea environments. They contain a variety of metallic elements and are important solid mineral resources on the seabed. How best to quickly and accurately identify polymetallic nodules is one of the key questions of marine development and deep-sea-mineral-resource utilization. We propose a method that uses YOLOv5s as a reference network and integrates the IoU (Intersection over Union) and the Wasserstein distance in the optimal transmission theory to accurately identify different sizes of polymetallic nodules. Experiment using deep-sea hyperspectral data obtained from the Peru Basin was performed. The results showed that better recognition effects were achieved when the fusion ratio of overlap and Wasserstein distance metric was 0.5, and the accuracy of the proposed algorithm reached 84.5%, which was 6.2% higher than that of the original baseline network. In addition, the rest of the performance indexes were also improved significantly compared to traditional methods.