Light - Science topic

Master 2 internship in nanophotonic. Experimental work in nanoantena for light emission.

This paper we concern the solvability and uniqueness of higher-order Langevin fractional differential equations subject to integral boundary conditions. We establish the existence of solutions using Krasnoselskii's fixed point theorem, while uniqueness is demonstrated through the application of the Banach fixed point theorem. The obtained results o...

It has been established that young children who use their fingers to solve arithmetic problems outperform those who do not. However, it remains unclear whether finger counting itself enhances arithmetic performance or if children with already advanced numerical abilities are more inclined to use this strategy. In the current study, to shed light on...

In this paper, we investigate the well-posedness and asymptotic behavior of an M/G/1 retrial queueing system characterized by reserved idle time and setup time. This system is intricately described by an infinite system of integro-partial differential equations. Our methodology is rooted in the feedback theory of well-posed and regular infinite-dim...

While existing studies on coalitions focus primarily on the party-level dynamics of a president’s political alliances, this paper examines the proportional representation of states within ministries during the terms of Fernando Henrique Cardoso, Lula da Silva, and Dilma Rousseff. Based on the political origins of 265 ministers, we developed an inde...

The European Commission has recently approved a Directive proposal to promote repair. After review by the European Parliament and Council, we can assess the policy measures in light of their intended objective. Our analysis shows that the Directive proposal fails to address the most important barriers to repair – planned obsolescence, availability...

Four-bit input linear quantum computing with liquid crystal (LC) devices was studied using the Deutsch–Jozsa algorithm. A laser beam is split into four paths and passed through a configuration of twisted nematic (TN) LC device/(λ/2 waveplate)/TN LC device for computation. In order to minimize the effect of photon loss in the light path, a 4 × 4 mat...

Resumo No Brasil, construções em madeira do tipo light woodframe possuem envelopamento estrutural do painel dependente do uso de chapas de OSB (Oriented Strand Board), o que implica em uma dificuldade em seu acesso por parte da população. Para ampliar a aplicação do sistema, uma possibilidade consiste em um projeto não atrelado aos monopólios de co...

Serum Neurofilament Chains in Multiple Sclerosis

Spiral Cage-shaped Symplectic Discretization 能级为感抗储能(浅水波能量不变，能量密度改变)；保辛是一种连续埃克曼螺旋形成笼体的离散 化过程。 Energy levels correspond to inductive energy storage (where the energy of shallow water waves remains constant while the energy density changes); symplectic conservation is a process of discretization that forms a cage-like structure from continuous Ekman...

Il Tribunale di Milano si misura con il delicato problema dell’interpretazione degli statuti di società, essendo stato chiamato ad occuparsi, in sede di reclamo di un provvedimento cautelare, dell’interpretazione di clausola statutaria dalla formulazione alquanto singolare, che mescola le caratteristiche di due note clausole di risoluzione delle si...

The Busy Beaver (BB) function can be defined as "finding the smallest program that outputs as much data as possible and eventually halts" and is an extraordinarily fast-growing process, representing the upper limit to how quickly things can grow. It's a situation similar to the rapidity of the speed of light. The lower limit to how slowly they can...

Plain English Summary Rapid pro-market reforms boost entrepreneurial innovation, particularly among new entrepreneurs and those confident in their capabilities. Although previous studies have analyzed the role of institutional context in the innovation strategies of new companies, the literature has typically taken a static perspective. In light of...

Considered from the realist perspective, strategic energy resources, which are among the elements of power, make cooperation possible for liberals. The concept of interdependence brings together two extreme theoretical approaches that locate strategic energy resources in different places. According to Keohane and Nye, the relations based on strateg...

Light exposure triggers a range of physiological and behavioural responses that can improve and challenge health and well-being. Insights from laboratory studies have recently culminated in standards and guidelines for measuring and assessing healthy light exposure, and recommendations for healthy light levels. Implicit to laboratory paradigms is a...

This study aims at shedding light on women’s exploitation and liberation at the same time in Atwood’s “Helen of Troy Does Countertop Dancing.” It is divided into an introduction and five other sections and a conclusion. The introduction introduces the reader to the world of myth and how they participate in framing the mind of the primitive man conc...

The scopes of the metric seek to know, in sequence, the performance of agents according to the objectives, parameters and methodology indicated. Note that the methodology is considered by the treatment of the models presented and brought to light by the empirical events that occur, which qualitatively reinforces the theoretical results.

This chapter explores and discusses the development of language assessment competence within the teacher education context. By means of a study on teacher educators in Chile, it sheds light on: • How teacher educators learn about language assessment • How teacher educators teach language assessment to the next generation of language teachers • The...

This publication provides an exploratory overview of newly emerging digital drug markets as well as a critical discussion of criminal responsibility of platforms for hosting user-generated content under 47 U.S.C. § 230 in light of the newly enacted EU Digital Services Act.

A logical or argumentation theory should provide clear criteria for distinguishing between types of arguments and fallacies. Fallacy overlap, namely the possibility of classifying a case under two distinct fallacies, poses a substantial challenge to the system-aticity and theoretical and practical reliability of a theory. However, despite its centr...

The propagation of ultra-short light pulses in silica optical fibers is modeled by the short pulse equation. We introduce a nonlocal regularization of the problem and study the existence of solutions in a class of possibly discontinuous functions.

تتناول هذه الدراسة موضوع التعامل في المستقبلية في القانون المدني البحريني، وتهدف هذه الدراسة الى بيان موقف المشرع البحريني من التعامل قي الاشياء المستقبلية ، حيث وضعت التشريعات ومنها التشريع البحريني القواعد والأحكام التي تضبط عملية العقود المستقبلية ، وذلك بما يحقق الغاية من اباحة التعامل في هذه العقود، وقد اتبع البحث المنهج الوصفي التحليلي من خلا...

هدفت الدراسة إلى التعرف على دور القيادة التحويلية في تعزيز التحول الرقمي لدى المعلم العماني في ضوء رؤية عمان 2040، وتكون مجتمع الدراسة من جميع قيادات المدارس الحكومية في سلطنة عمان والبالغ عددهم (911) قائد، واشتملت عينة الدراسة على (263) مفردة، واعتمدت الدراسة على المنهج الوصفي كمنهج للدراسة، واستخدمت الاستبانة كأداة للدراسة، وقد توصلت الدراسة إلى...

A new class of generalized starlike bi-univalent functions is introduced in this paper, which is defined using Legendre Polynomials within the open unit disk D. This paper sheds a light on the properties and behaviors of these starlike bi-univalent functions, providing estimations for the modulus of the initial Taylor series coefficients of the fun...

This study aims to evaluate the effectiveness of the legal procedures followed in the process of recovering the proceeds of corruption crimes, which are considered among the most important legal mechanisms of national and international interest, so that they have become a major challenge for many public authorities, especially in light of the lack...

This was a presentation titled 'The Buddhist Art of Awakening' presented at Leeds Beckett University 27.11.24 to celebrate the reception of the 'Encyclopedia of Buddhist Arts' from Fo Guang Shan, Buddha's Light International Association.

This study presents a comprehensive morphological and molecular analysis of Ptilocephala biroi (Rebel, 1909), comparing it to P. vesubiella (Millière, 1872), historically regarded as its closest congener. We also examine P. biroi in relation to P. pyrenaella ducalis Bertaccini, 2017, which is geographically nearest to the type locality of P. biroi...

The meeting patronized by Ernest Solvay in 1911, the first Solvay Council, marked the beginning of what can be called the first quantum revolution. Maurice de Broglie was one of the secretaries of the Council. He participated in the two following conferences and contributed to the third Council with his work. Louis de Broglie collaborated and discu...

Noise is a ubiquitous feature for all organisms growing in nature. Noise (defined here as stochastic variation) in the availability of nutrients, water and light profoundly impacts their growth and development. Not only is noise present as an external factor but cellular processes themselves are noisy. Therefore, it is remarkable that organisms can...

We introduce a structured light system that captures full-frame depth at rates of a thousand frames per second, four times faster than the previous state of the art. Our key innovation to this end is the design of an acousto-optic light scanning device that can scan light planes at rates up to two million planes per second. We combine this device w...

Jet precession is thought to be a ubiquitous phenomenon in astronomical events of various scales, including gamma-ray bursts (GRBs). If GRB jets undergo precession, periodic features might be introduced into their light curves. Detecting these periodic signals is therefore crucial for confirming the properties of GRBs’ central engines. However, per...

We present lattice calculations of the masses of baryons containing the light, strange and charm quarks and their decompositions into sigma terms and trace anomaly. These results are obtained from 2+1 flavor QCD ensembles at 5 lattice spacings $a\in[0.05,0.11]$ fm, 4 spatial sizes $L\in[2.5, 5.1]$ fm, 7 pion masses $m_{\pi}\in[135,350]$ MeV, and se...

Short-pulsed solid-state lasers (SSLs) are the most commonly employed light sources in optoacoustic imaging applications. However, their bulky size hinders compact and portable system implementations. Here we developed a compact laser diode (LD)-based optoacoustic mesoscopy (CoLD-OAM) scanner that employs a fiber-coupled laser diode source with 46...

We derive a class of Taub-NUT metrics in the presence of a scalar field (TNS) by using Ernst equations and potential, as well as using Ehlers transformations on the exact solutions that was recently introduced in Azizallahi et al. (Nucl Phys B 998:116414, https://doi.org/10.1016/j.nuclphysb.2023.116414 , arXiv:2307.09328 [gr-qc], 2023) and Mirza et...

this is a very astonishing observation. 75% efficient FRET was measured for a gold QD being very close (1-2 nm) to the Jagg of DYE II in a counter layer. Therefore, electron transfer from Jaggs to quantum dots by tunneling would in principle be possible if reducing Jagg properties in the absence of light would help to prevent oxidation of QD-protec...

This article delves into the synergistic relationship between Alvar Aalto and his three Italian collaborators: Leonardo Mosso, Federico Marconi, and Vezio Nava. By examining their contributions, experiences, and professional trajectories, the paper sheds light on the significance of the Italian influence on the Finnish architect and challenges misc...

Debates in 4E and scaffolded cognition have been centered on cases in which human cognitive or affective capacities are enhanced through technology. Recently some authors have noted that this may not always be the case: the technologies and environment around us can negatively impact cognitive and affective abilities. In the first part, I elaborate...

Pyrexia of unknown origin (PUO) is a diagnostic challenge with a variety of causative factors, one of which is malignancy. This report throws light on sigmoid colon carcinoma, one of the lesser understood causes of pyrexia of unknown origin, where unremitting fever was the presenting symptom. Exclusion of common infectious causes of fever with thor...

The first half of the twentieth century was a particularly fruitful phase for Chinese-German relations, both in the fields of literature and culture, and in education. The impact of this exchange goes far beyond the year 1949. This edited volume uses documentary sources to shed light on encounters between people and their cultures in the Chinese-Ge...

Effects of pH, temperature and light on carbon metabolism in Macrocystis pyrifera gametophytes

By reviewing the history of Andalusia, many Arab tribes appear that were present in Andalusia and had an impact on scientific life, but the light was not shed on them. In this research, we tried to shed light on the role of scholars of the Bali tribe in establishing educational centers in Andalusia. We addressed the lineage of the tribe and then th...

In this paper we provide the non-existence criterion for the so-called maximizing curves of odd degrees. Furthermore, in the light of our criterion, we define a new class of plane curves that generalizes the notion of maximizing curves which we call as $M$-curves.

This book contains in-depth analyses of the shifting geopolitical trends unfolding in West Asia. Critical issues such as geopolitics, regional security, sectarianism, extremism, energy security and India’s relationship with the region have been discussed by the scholars in this edited volume. In light of the evolving geopolitical and security situa...

In this article, the authors introduce Qi’s normalized remainder of the Maclaurin series expansion of Qi’s normalized remainder for the cosine function. By virtue of a monotonicity rule for the quotient of two series and with the aid of an increasing monotonicity of a sequence involving the quotient of two consecutive non-zero Bernoulli numbers, th...

Since light travels at ‘’c‘’ along the x-direction in the non-dashed system, and light travels at ‘’c‘’ in the dashed system, the equating of these systems, simply means, that the light reaches the same point at the same time along the x-direction in both systems . It means . . . there is no ‘’Relativity of Simultaneity‘’ . . .

In this paper, we investigate the helicity form factors (HFFs) of the $B_{(s)}$-meson decay into a scalar meson with a mass larger than 1~GeV, {\it i.e.,} $B \to a_0(1450)$, $B_{(s)} \to K_0^*(1430)$ and $B_{s} \to f_0(1500)$ by using light-cone sum rules approach. We take the standard currents for correlation functions. To enhance the precision of...

p>Leadership and followership have long been considered to be defining features of democratic politics. However, more recently, both conceptual redefinitions and real-world developments have put issues of leadership and followership in regimes from beyond the family of established liberal democracies center-stage. This article looks into the nature...

28 / 2009 ‫إليها‬ ‫توصلت‬ ‫التي‬ ‫النتائج‬ ‫بين‬ ‫ومن‬ ‫الالحقة،‬ ‫وتعديالته‬ ، ‫عند‬ ‫واملوضوعية‬ ‫الشكلية‬ ‫الضوابط‬ ‫اعاة‬ ‫مر‬ ‫ضرورة‬ ‫املكلفين‬ ‫حقوق‬ ‫على‬ ‫وتؤكد‬ ‫الحكومي،‬ ‫للجهاز‬ ‫العام‬ ‫األداء‬ ‫كفاءة‬ ‫في‬ ‫املطاف‬ ‫نهاية‬ ‫في‬ ‫تساهم‬ ‫ألنها‬ ‫التشريعي،‬ ‫النص‬ ‫صياغة‬ ‫ووضوح.‬ ‫بدقة‬ ‫املفتاحية:‬ ‫الكلمات‬ ‫القانوني‬ ‫األمن‬-‫الضري...

Due is a failed attempt to write a metanarrative sequel to the 90s bestseller "Jack Frusciante è uscito dal gruppo" - the failure sheds light upon some of the transformations occured in the contemporary panorama, and on the spiritually inflected end of postmodernism.

The internal structure of the light scalar meson a 0 ( 980 ) is explored in the three-body D decays of D → a 0 ( 980 ) P → P 1 P 2 P through the intermediate state a 0 ( 980 ) , where P denotes a pseudoscalar meson. The quasi-two-body D → a 0 ( 980 ) + P decays are governed by the external W -emission diagram in which a 0 ( 980 ) + is emitted. The...

The post-auricular region presents with swellings that can arise from various aetiologies. Attention to this region is lower as it is generally a cosmetically insignificant area and also most swellings from this region are slow growing. However, literature gives an account of inflammatory as well as neoplastic growths from this area with some masse...

Neutrino oscillation experiments are gradually approaching an era of precision, where subleading effects can also be tested. One such subleading effect is Non-Standard Interactions (NSI), which can play a crucial role in neutrino oscillations. Various works have typically discussed vector NSI in the context of quantum correlations. Recently, there...

Large pretrained transformer models have revolutionized modern AI applications with their state-of-the-art performance in natural language processing (NLP). However, their substantial parameter count poses challenges for real-world deployment. To address this, researchers often reduce model size by pruning parameters based on their magnitude or sen...

Proposed here is a novel mechanism where mass emerges in regions of the universe experiencing superluminal expansion. By coupling the expansion scalar θ from general relativity with a scalar field ϕ responsible for mass generation, we explore how violations of the local speed of light limit in expanding spacetime can lead to the spontaneous symmetr...

We explored how the Lorentz symmetry breaking parameter ℓ affects the Reissner-Nordstöm BH solution in the context of weak field deflection angle, and the black hole shadow. We aim to derive the general expression for the weak deflection angle using the non-asymptotic version of the Gauss-Bonnet theorem, and we presented a way to simplify the calcu...

The dilaton emerges as a pseudo-Nambu-Goldstone boson (pNGB) associated with the spontaneous breaking of scale invariance in a nearly conformal field theory (CFT). We show the existence of a wiggly dilaton potential that contains multiple vacuum solutions in a five-dimensional (5D) holographic formulation. The wiggly feature originates from boundar...

Photoredox-catalyzed phosphonylation of bromo-substituted 1,10-phenanthrolines under visible light irradiation was studied. The reaction was shown to proceed under mild conditions with Eosin Y as a photocatalyst in DMSO under blue light irradiation. It is transition-metal-free and affords the target phosphonate-substituted 1,10-phenanthrolines in m...

Undoped and Tm-doped Ca3TaGa3Si2O14 (CTGS) single crystals were synthesized by the floating-zone method, and their photoluminescence (PL) and scintillation properties were investigated. The Tm-doped samples showed PL and scintillation due to 4f–4f transitions of Tm³⁺. The PL quantum yields of the 0.1, 0.5, 1, and 2% Tm-doped CTGS samples were, resp...

Molybdenum disulfide (MoS2) is a highly effective visible light photocatalyst when used as well-exfoliated 2D nanosheets. The ability to make effective use these properties is significantly compromised by the challenge...

We report a light-promoted hydroselenation of alkenes with high anti-Markovnikov selectivity. Blue light activates an aryl diselenide to generate a seleno radical with subsequent addition into an alkene to form a β-seleno carbon radical. Hydrogen atom transfer (HAT) from the selenol to the carbon radical generates the linear selenide with high sele...

An unprecedented natural light promoted DMSO/O2-catalyzed N-acylation reaction of imidazoles/triazoles with cyclopropenones at room temperature under metal-free conditions has been developed. The remarkable advantages of this strategy include atomic economy and environmentally benign conditions (such as natural light promotion, DMSO/O2-catalysis, r...

Reconstructing training data from trained neural networks is an active area of research with significant implications for privacy and explainability. Recent advances have demonstrated the feasibility of this process for several data types. However, reconstructing data from group-invariant neural networks poses distinct challenges that remain largel...

The objective of this work was to evaluate the effect of different LED light spectra on the in vitro rhizogenesis of microcuttings of blueberry 'Jewel', without the use of growth regulators. The plantlets were subjected to four LED light treatments, as follows: R, 100% red; R2B, 70% red and 30% blue; B, 100% blue; and CW, control white. After six w...

This study examines how forty-eight Polish in-service language teachers position them- selves through their discourse during professional promotion examinations for teachers. The data were collected via field notes concerning the participants’ narratives and their responses to the questions asked by the members of the examination commissions. Of pa...

High data rate optical deep space communication links for future space missions need large capture area receivers that can efficiently couple light into a single-mode fiber. Coherent detection is attractive as it offers both high spectral efficiency and sensitivity. Here, we numerically investigate two such large area receivers in the context of we...

We examine statistics of fluctuations of the light beam intensity at its propagating in a turbulent atmosphere. We are interested in the probability of relatively large values of the beam intensity. The model of a phase screen is considered. We find the tail of the probability density function characterized by the stretched exponent with power 7/12...

The kinetics of the reaction of 5-nitroisatin with morpholine in water–acetonitrile and water–methanol solvents was followed spectrophotometrically in the ranges of solvent composition (10–90% v/v) over the temperature range from 25 to 45 °C. The reaction was measured under pseudo-first-order condition respect to 5-nitroisatin and the overall react...

This study paper offers a thorough examination of the six-month period of crime statistics in the Brahmanbaria District. The goal of the study is to investigate the many kinds of crime that occur in the area, along with their frequency, geographical patterns and temporal fluctuations. This study uses crime data analysis to pinpoint important proble...

Regular black hole is one of the bottom-up solutions designed to eliminate the singularity at the center of black holes. Its horizonless solution has gained interest recently to model ultracompact star. Despite interesting, this proposal is problematic due to the absence of a well-defined boundary. In this work, we introduce a novel regular black h...

The subject of democracy as a value is a reality that is embraced by many entities. John Paul II used to say that “Freedom is not given, it is a task.” The same can be said of democracy, which is not given once and for all, but is a task for us. Society must take care of democracy, but it must also ensure that the young generation is educated in th...

A scheme for adjusting focus field strength in a scattered field is reported. By using the third-order correlation of light field (TCLF), we can obtain focal points at different positions in the scattered field. By superimposing the incident patterns (TCLF-patterns) corresponding to these focal points with suitable weights, the ratio of the field s...

A universal Wong formula is proposed with refined model parameters for a systematic description of the capture cross sections for heavy-ion fusion reactions from C+C to Ni+U, in which the barrier parameters and the barrier distribution are determined by the entrance-channel nucleus-nucleus potential based on the Skyrme energy density functional. Wi...

The proximal bundle algorithm (PBA) is a fundamental and computationally effective algorithm for solving optimization problems with nonsmooth components. We investigate its convergence rate, focusing on composite settings where one function is smooth and the other is piecewise linear. We interpret a sequence of null steps of the PBA as a Frank-Wolf...

Lorentz transformation was proposed to resolve the inconsistency between the theory of aether and the result of Michelson Morley experiment. However, Lorentz transformation brought in its own logical inconsistency. This logical inconsistency is intrinsic to Lorentz transformation. It has not been and could not be truly resolved. We propose that the...

Manifold learning and effective model building are generally viewed as fundamentally different types of procedure. After all, in one we build a simplified model of the data, in the other, we construct a simplified model of the another model. Nonetheless, I argue that certain kinds of high-dimensional effective model building, and effective field th...

The role and future developments of the 1982 UN Convention on the Law of the Sea (UNCLOS) may be better appreciated in light of Article 293 (Applicable law) of UNCLOS, stipulating that a court or tribunal having jurisdiction under the compulsory procedures entailing binding decisions under UNCLOS shall apply UNCLOS “and other rules of international...

Bevezetés: Primer vagy könnyűlánc-amyloidosis esetében kórosan termelődő monoklonális immunglobulinkönnyűlánc-fragmentumok rakódnak le a szervekben, a kialakuló amyloiddepozitumok pedig diszfunkciót okoznak. Célkitűzés és módszer: Kutatásunk során a Semmelweis Egyetem Belgyógyászati és Hematológiai Klinikáján 2010 és 2024 között könnyűlánc-amyloido...

We consider a physical system composed of a rod of length AB = L rotating uniformly. Two points on the rod cross-sections at A and B are connected in a way that reflects the simultaneity built-in into the system. This preset simultaneity can be exploited to synchronize two distant clocks, one at A and the other at B, with an internal procedure that...

Our understanding of high-lying states within the charmonium family remains incomplete, particularly in light of recent observations of charmonium states at energies above 4 GeV. In this study, we investigate the spectroscopic properties of several high-lying charmonia, focusing on the $D$-, $F$-, and $G$-wave states. A mass spectrum analysis is co...

This article explores Aquinas' conception of the goodness of creatures in the light of his commentaries on wisdom literature. Leveraging the Index Thomisticus, relevant passages from Aquinas’ commentaries on wisdom books and their corresponding scriptural verses related to creation are identified. His non-exegetical works are also scrutinized for r...

In this work, we propose a new type of hollow-core anti-resonant fiber (HC-ARF) structure called a coin-slot structure. In this type of structure, two more layers of glass walls are added into the outer cladding capillary, which can effectively prevent light from leaking out of the fiber. In aiming to explore the influence of the outer resonant tub...

Investigating the electromagnetic characteristics of unconventional states may offer new insights into their internal structures. In particular, the magnetic moment attributes may serve as a crucial physical observable for differentiating exotic states with disparate configurations or spin-parity quantum numbers. As a promising avenue for research,...

Oil well prediction in light of Kyoto.