Infinite Potential Research Articles

Borderless crimes and digital forensic: Nigerian perspectives

PurposeThis paper aims to determine the extent to which the myriad of cybercrimes is within the purview of extant Nigerian laws against the backdrop of the modicum of legal and institutional mechanisms available at international law for combating cybercrimes.Design/methodology/approachThis study is library based. It relies on secondary data generated by the variegated multilateral agencies, law reports of international and municipal tribunals, relevant books, journals, monographs policy papers and so forth as the basis of analysis.FindingsFindings suggest that cybercrimes are very difficult to unravel because their traces are imperceptible and require highly specialised skills and digital protocols to find, store and save them for evidential purposes. Such gathered evidence are in the form of digital data stored in variegated hardware and software media, such as storage peripherals, electronic components, working memory, hard discs and external discs. The difficulty is how to identify, weigh for evidential value and capture the multiplicity of evidence unearthed in a digital forensic investigation. The foregoing underscores the digital forensic problematic which is engendered by the difficulties of contriving a thoroughgoing concept of digital evidence given the malleable nature of the variegated storage media.Practical implicationsThis paper engenders considerable acquaintance of the entire sphere of digital crimes and cyber threats, which is contended with in the information epoch, and recommends both legal and institutional mechanisms to counter the clear, real and present danger, which digital crimes represent for the survival of human civilisation, sustainable economic growth and development.Originality/valueThis paper dwells on the infinite potentiality of deploying the instrumentality of national and international law to deter, control and prosecute the myriad of cybercrimes.

Non-Standard and Numerov Finite Difference Schemes for Finite Difference Time Domain Method to Solve One- Dimensional Schrödinger Equation

<span>The purpose of this paper is to show some improvements of the finite-difference time domain (FDTD) method using Numerov and non-standard finite difference (NSFD) schemes for solving the one-dimensional Schr</span><span>ö</span><span>dinger equation. Starting with results of the unmodified FDTD method, Numerov-FD and NSFD are applied iteratively to produce more accurate results for eigen energies and wavefunctios. Three potential wells, infinite square well, harmonic oscillator and Poschl-Teller, are used to compare results of FDTD calculations. Significant improvements in the results for the infinite square potential and the harmonic oscillator potential are found using Numerov-NSFD scheme, and for Poschl-Teller potential are found using Numerov scheme.</span>

Influence of the confinement potential on the size-dependent optical response of metallic nanometric particles

In this paper, different confinement potential approaches are considered in the simulation of size effects on the optical response of silver spheres with radii at the few nanometer scale. By numerically obtaining dielectric functions from different sets of eigenenergies and eigenstates, we simulate the absorption spectrum and the field enhancement factor for nanoparticles of various sizes, within a quantum framework for both infinite and finite potentials. The simulations show significant dependence on the sphere radius of the dipolar surface plasmon resonance, as a direct consequence of energy discretization associated to the strong confinement experienced by conduction electrons in small nanospheres. Considerable reliance of the calculated optical features on the chosen wave functions and transition energies is evidenced, so that discrepancies in the plasmon resonance frequencies obtained with the three studied models reach up to above 30%. Our results are in agreement with reported measurements and shade light on the puzzling shift of the plasmon resonance in metallic nanospheres.

Successful refolding and NMR structure of rMagi3: A disulfide-rich insecticidal spider toxin.

The need for molecules with high specificity against noxious insects leads the search towards spider venoms that have evolved highly selective toxins for insect preys. In this respect, spiders as a highly diversified group of almost exclusive insect predators appear to possess infinite potential for the discovery of novel insect-selective toxins. In 2003, a group of toxins was isolated from the spider Macrothele gigas and the amino acid sequence was reported. We obtained, by molecular biology techniques in a heterologous system, one of these toxins. Purification process was optimized by chromatographic methods to determine the three-dimensional structure by nuclear magnetic resonance in solution, and, finally, their biological activity was tested. rMagi3 resulted to be a specific insect toxin with no effect on mice.

Ukraine–France: Contemporary Cooperation

In 2014, in the course of the Revolution of Dignity, Ukraine consciously opted for European values. Thus, cooperation with one of the founding member states of the EU bears strategic importance. The author believes that the the interaction between the two countries is based on ancient relations between France and Ukraine. Apart from political relations, France and Ukraine are bound by creative endeavours of many artists. After celebrating the 25th anniversary since the establishment of diplomatic relations between our countries, the Ministers for Foreign Affairs of Ukraine and France opened an exhibition dedicated to the 100th anniversary of the foundation of Ukrainian diplomatic service. The author stresses that France was the first Western state with which Ukraine signed the 1991 Interstate Agreement on Mutual Understanding and Cooperation. Moreover, it was in Paris where the Charter of Paris for a New Europe was signed, the document which allowed Ukraine to join the CSCE as a full-fledged member. Taking into account the current development in the east of Ukraine, the author underscores that France and Germany were the initiators of the Normandy Format negotiations. France consistently supports the territorial integrity of Ukraine, while not recognising the annexation of Crimea and takes a firm stand towards Russia. The author mentions the establishment of the France-Ukraine friendship group, headed by Valerie For-Muntean. Apart from political cooperation, economic ties between the two states are also gaining momentum. Nowadays, Ukraine is examining modern initiatives of France in ecology, energy efficiency, etc. The article outlines the interation of the two states in the educational sphere. France is encouraging numerous riveting projects intercultural projects displaying the best specimens of modern Ukrainian art. New intercultural contacts are also gaining ground. The author highlights the main events held at the culture and information centre of the Embassy and reports about the multidisciplinary festival Week-End a l’Est – Kyiv. Yet another recent development has been the inauguration of the web platform Nouvelle Ukraine, whose aim is to raise awareness about Ukraine in France, contribute to the positive image of the country, and build economic and cultural contacts. According to the author, the cooperation of Ukraine and France is only beginning to gain momentum and has infinite potential. Keywords: France, Ukraine, the EU, France-Ukraine friendship group, Ukrainian-French ties.

Scenes: Atelier26

ScenesAtelier26 An Interview with Diane Prokop Could you briefly describe your press's history? M. Allen Cunningham founded Atelier26 Books in 2011 out of deep personal convictions as a reader and writer, with the hope of helping other writers, and with the aim of bringing a writer's sensibility to the press's editing and publishing practices. Among the core Atelier26 principles is the belief that reading is far more than just another form of consumerism and that idiosyncratic works—even those that exist without a topical "hook" or whose authors lack a "platform"—have an integral place in literary culture, and that, in fact, literary history is largely built upon such works. We've grown our list gradually over the last 6.5 years, and in recent seasons have become recognized for the excellence of our titles, such as Woody Skinner's A Thousand Distant Radios, which was honored by the 2018 PEN/Bingham Award (longlist), and Margaret Malone's People Like You, Finalist for the 2016 PEN/Hemingway Award and winner of the 2015 Balcones Fiction Prize. Our books have been lauded by many notable authors and cited on numerous Best of the Year lists. How would you characterize the work you publish? We focus on unconventional or formally inventive literary fiction and creative nonfiction, and—to the extent that it reaches us serendipitously—some poetry (most recently Sidney Wade's magnificent Bird Book). Our books are finely written and edited and each is beautifully designed. We're particularly drawn to work that displays sensitivity to the nuance, power, and infinite potential of language, work that contains unforgettable imagery and that will inspire multiple re-readings and generate conversation. Who is your audience, and in what ways are you trying to reach them? We believe our audience overlaps quite naturally with the loyal audiences of other excellent independent publishers for whom the first concern is literary quality—and for whom questions of "marketability," etc., are not at all primary: Graywolf, Coffee House, Sarabande, Dalkey Archive. We expect that increasingly readers will, as they do with these older houses, recognize Atelier26 titles for their distinctiveness: artful writing, thought-provoking themes and treatments, and lasting quality that transcends any single publishing season. We have an excellent distributor in IPG, a marvelous publicist in Diane Prokop, and we find these readers however we can: book festivals, pop-up sales, independent bookstore events, award recognition—but the most significant outreach occurs via word of mouth, one reader sharing our titles with another on the basis of quality, pure and simple, as they did so wonderfully with one of our first books, Harriet Scott Chessman's glorious novel The Beauty of Ordinary Things (2013). That's something that can't really be orchestrated or manipulated, and it's an inspiring thing to see. What is your role in the publishing scene? Click for larger view View full resolution M. Allen Cunningham Atelier26 Books exists to demonstrate the powers and possibilities of literature—to show, in our own small way, that despite the fact that a mere handful of titles dominates mainstream literary publishing every season, other vibrant, vital voices are contributing to the literary culture in wonderful ways—that such books are always there awaiting you, if you're prepared to find them. And we actively partner with great independent bookstores that make the discovery of such books a major part of their mission. What's in the future for your press? We expect to continue growing our list—and also our reputation among readers and writers. We're excited that this fall will bring the publication of M. Allen Cunningham's Perpetua's Kin, a powerful voice-driven literary novel eleven years in the making. We'll continue to be editorially driven, intent on providing a rich and fulfilling reading experience, and we look forward to bringing in further gifted writers, both new and seasoned. [End Page 47] Copyright © 2018 American Book Review

Calculation of the Ettingshausen coefficient in a Rectangular quantum wire with an infinite potential in the presence of an Electromagnetic wave (the electron - optical phonon interaction )

The Ettingshausen coefficient (EC) in a Rectangular quantum wire with an infinite potential (RQWIP)in the presence of an Electromagnetic wave (EMW) is calculated by using a quantum kinetic equation for electrons. Considering the case of the electron - optical phonon interaction, we have found the expressions of the kinetic tensors . From the kinetic tensors, we have also obtained the analytical expression of the EC in the RQWIP in the presence of EMW as function of the frequency and the intensity of the EMW, of the temperature of system, of the magnetic field and of the characteristic parameters of RQWIP. The theoretical results for the EC are numerically evaluated, plotted and discussed for a specific RQWIP GaAs/GaAsAL. We also compared received EC with those for normal bulk semiconductors and quamtum wells to show the difference. The Ettingshausen effect in a RQWIP in the presence of an EMW is newly developed.

The Photon-Drag Effect in Cylindrical Quantum Wire with an Infinite Potential for the Case of Electrons – Acoustic Phonon Scattering

Abstract - The photon - drag effect with electrons – acoustic phonon scattering in cylindrical quantum wire with an infinite potential is studied. With the appearance of the linearly polarized electromagnetic wave, the laser radiation field and the dc electric field, analytic expressions for the density of the direct current are calculated by the quantum kinetic equation. The dependence of the direct current density on the frequency of the laser radiation field, the frequency of the linearly polarized electromagnetic wave and the temperature of the system is obtained. The analytic expressions are numerically evaluated and plotted for a specific quantum wire, GaAs/AlGaAs. The difference of the density of the direct current in quantum wires from quantum well and bulk semiconductor is due to potential barrier and characteristic parameters of system. These results are for every temperature and are new results.

Electronic states and optical properties of single donor in GaN conical quantum dot with spherical edge

In this paper we present a theoretical investigation of quantum confinement effects on the electron and single donor states in GaN conical quantum dot with spherical edge. In the framework of the effective mass approximation, the Schrödinger equations of electron and donor have been solved analytically in an infinite potential barrier model. Our calculations show that the energies of electron and donor impurity are affected by the two characteristic parameters of the structure which are the angle Ω and the radial dimension R. We show that, despite the fact that the reduction of the two parameters Ω and R leads to the same confinement effects, the energy remains very sensitive to the variation of the radial part than the variation of the angular part. The analysis of the photoionization cross-section corresponding to optical transitions between the conduction band and the first donor energy level shows clearly that the reduction of the radius R causes a shift in resonance peaks towards the high energies. On the other hand, the optical transitions between 1s−1p, 1p−1d and 1p−2s show that the increment of the conical aperture Ω (or reduction of R) implies a displacement of the excitation energy to higher energies.

Detailed Investigation: Performance of Influence Analysis Towards Big Social Data

Large ranges of frequent information from online social network applications and wearable technology have seen an exponential growth in the number of users and activities recently. The social data offers well-heeled information and infinite potential for us to understand and analyze the complex inbuilt mechanism which governs the development of the new technology. Dissemination of data which represents the change in an individual's thoughts, attitudes and behaviors resulting from interaction with others, is one of the primary processes in social world. Therefore, influence analysis occupies a very important place in social related data analysis. We study the influence analysis under the scenario of big social data. First, we examine the uncertainty of influence relationship with the social network and a framework is introduced. To transform the uncertain networks into deterministic weight network a practical framework is proposed to explore the real changes of a social network data. Our penetrating framework will minimize the feasible difference between the experiential topology and the actual network through several representative communities.

Higher order supersymmetric truncated oscillators

We study the supersymmetric partners of the harmonic oscillator with an infinite potential barrier at the origin and obtain the conditions under which it is possible to add levels to the energy spectrum of these systems. It is found that instead of the usual rule for non-singular potentials, where the order of the transformation corresponds to the maximum number of levels which can be added, now it is the integer part of half the order of the transformation which gives the maximum number of levels to be created.

A random cloud algorithm for the Schrödinger equation

Abstract In this paper we present a numerical scheme for the Random Cloud Model (RCM) on a bounded domain which approximates the solution of the time-dependent Schrödinger equation. The RCM is formulated as a Markov jump process on a particle number state space. Based on this process a stochastic algorithm is developed. It is shown that the algorithm reproduces the dynamics of the time-dependent Schrödinger equation for exact initial conditions on a bounded domain. The algorithm is then tested for two different cases. First, it is shown that the RCM reproduces the analytic solution for a particle in a potential well with infinite potential. Second, the RCM is used to study three cases with finite potential walls. It is found that the potential triggers processes, which produces RCM particles at a high rate that annihilate each other.

Periodic orbits around a spherically symmetric naked singularity

The motion of time-like test particles in the Fisher/Janis-Newman-Winicour (F/JNW) spacetime is studied with the Hamiltonian formulation of the geodesic equations. The spacetime is characterised by its mass parameter $r_g$ and scalar field parameter $\nu$. The innermost bound and stable circular orbits are calculated and the effective potential is analysed. Consistent with numerical results in earlier literature, for $\nu<1/2$, particles with non-zero angular momentum encounter an infinite potential barrier, preventing them from reaching the naked singularity at $r=r_g$. Periodic orbits in the spacetime are also obtained. Compared to the periodic orbits around the Schwarzschild black hole, it is found that typically lower energies are required for the same orbits in the F/JNW spacetime.

Controlling the Quantum State with a time varying potential

The problem of controlling the quantum state of a system is investigated using a time varying potential. As a concrete example we study the problem of a particle in a box with a periodically oscillating infinite square-well potential, from which we obtain results that can be applied to systems with periodically oscillating boundary conditions. We derive an analytic expression for the frequencies of resonance between states, and against standard intuition, we show how to use this behavior to control the quantum state of the system at will. In particular, we offer as an example the transition from the ground state to the first excited state of the square well potential. At first sight, it may be counter intuitive that we can control the state of such a quantum Hamiltonian, as the Schrödinger equation conserves the norm of the wave function. In this manuscript, we show how that can be achieved.

Construction of Dirac Delta Function from the Discrete Orthonormal Basis of the Function Space

Orthonormal basis of the function space can be used to construct Dirac delta function. In particular, set of eigenfunctions of the Hamiltonian operator of a particle in one dimensional infinite potential well forms a non-degenerate discrete orthonormal basis of the function space. Such a simple basis set is suitable to study closure property of the basis and various properties of Dirac delta function in Physics graduate lab.The Himalayan Physics Vol. 6 &amp; 7, April 2017 (54-57)

Field-effect mobility of a two dimensional electron gas in an n–channel of Si-SiO2 MOS structure with due consideration of some practical features

The field-effect mobility characteristics of a non-degenerate ensemble of a two dimensional electron gas for interaction with acoustic mode lattice vibrations in the Si-SiO2 MOS structure at the high surface electric fields are calculated here for the low and high temperature cases. The calculation takes due account of some features which are usually neglected. These include the effects of (i) the transverse component of the phonon wave vector, (ii) the realistic model of the infinite triangular potential well along the transverse direction, while applying the momentum conservation approximation, and (iii) the full form of the phonon distribution function at low temperatures. The results seem to be interesting in that they are significantly different from what follows from other theories that neglect the effects of the above features. Moreover, the agreement between the results which are obtained here with the experimental data seems to be significantly better. The scope for further refinement of the present theory has been discussed.

Mesoporous Co@N-rich carbon hybrids for a high rate aqueous alkaline battery

Metal cobalt has infinite potential for super performance aqueous alkaline batteries. But it is a high degree of requirements to design and synthesize composites to solve the common problems than Co materials. Hence towards that end, Co@N-rich carbon hybrids (CoNC) have been designed and prepared via an in-situ, facile and effective method. By doping abundant nitrogen (about 5wt%), the mesoporous carbon shells provide more active sites, enhanced electrical conductivity and electrode infiltration, and avoid the Co nanoparticles agglomeration and serious electrode dissolution. When used as the electrode for the aqueous alkaline battery, the CoNC hybrids deliver outstandingly higher discharge capacity, superior high-rate ability, and stable cycling ability. A high discharge capacity of 625mAhg−1 has been delivered at 500mAg−1 and reduced to 455.7mAhg−1 after 150 cycles for the CoNC electrode. Even the current increases up to 5Ag−1, the capacity still remains at 461.3mAhg−1, manifesting the fascinating high-rate discharge ability. Importing the rich nitrogen species makes a significant difference to give full play a positive role on the aqueous alkaline battery, which as well guides a new direction towards high-rate power batteries.

Energetic Spectrum of a Particle in Three-dimensional Infinite Potential Square Well in Point of View of Number Theory and Bayesian Statistics

Using results of number theory we develop an approximate statistical model of energy levels of particles in a three-dimensional infinite potential well depending on whether there is exactly one particle or more than one particles in the well. The model is used to perform a statistical inference about the number of particles in the well. The estimation procedure is developed within the Bayesian framework.

Spin-orbit interaction effects on the electronic structure of spherical quantum dot with different confinement potentials

In this paper simultaneous effects of spin-orbit interaction and external magnetic field on the energy eigenvalues and functions of the spherical quantum dot with infinite and finite potential barriers are studied. We have derived the matrix form of the spin-orbit interaction Hamiltonian in the spherical coordinate to find the energy eigenvalues and functions of the system at the presence of spin-orbit interaction. It is shown that energy eigenvalues and functions strongly depend on the spin-orbit interaction strengths, external magnetic field and the dot size for both infinite and finite confinement potentials.

On the electronic states in lens-shaped quantum dots

Using the effective mass and parabolic band approximations, we determine analytically the energies of the fundamental and lowest states of a confined electron in paraboloidal quantum lens with infinite confinement potential. Consistent with the axial symmetry, when the separation constant is different of zero the states are twice degenerate. The method has been applied to investigate the evolution of the gap energies of some alloys versus the dot size. The electron localization has also been investigated by using finite element calculations. The method developed in this work could be useful to investigate more deeply the lens-shaped quantum dot.