Exact Proof Research Articles

University peers and career prospects: The impact of university ties on early labor market outcomes

By using extensive Hungarian administrative data, this study aims to provide empirical evidence that former university ties strongly influence the labour market outcomes of individuals, even early in their careers. The estimates focus on the early career paths of graduates who obtained a master's degree between 2010 and 2017. As direct information on social contacts is not available in the dataset, we proxy university peers as students who started and finished the same university programmes (bachelor's or master's) in the same semester. Our results suggest that individuals are more likely to get hired by given firms if their former peers work there. The measured effects are considered significant and quite robust, even after controlling for the important sources of potential bias. Although we cannot present exact proof of the direct help of contacts, we provide suggestive evidence that seems to confirm the existence of such assistance. Our findings also revealed that the measured benefits are mainly attributable to connections from bachelor's studies. The effect of master's peers is mostly driven by the selection of individuals alongside prevalent study track-firm pathways. By comparing entries into new firms with and without peers, we also show that graduates with links have better labor market outcomes after hiring: they earn higher wages, obtain better and more prestigious positions, and stay longer at their new firm. The results draw attention to the importance of university peers in the labour market and contribute to the discussions about the determinants of early labour market success.

Topological invariant for multiband non-Hermitian systems with chiral symmetry

Topology plays an important role in non-Hermitian systems. How to characterize a non-Hermitian topological system under open-boundary conditions (OBCs) is a challenging problem. A one-dimensional (1D) topological invariant defined on a generalized Brillion zone (GBZ) was recently found to successfully describe the topological property of the two-band Su-Schrieffer-Heeger model. But for a 1D multiband chiral symmetric system under OBCs, it is still controversial how to define the topological invariant. We show in this paper by exact proof and detailed demonstration that to acquire the topological invariant for multiband non-Hermitian models with chiral symmetry, the GBZ as the integral domain should be replaced by a more generalized closed loop. Our work thus establishes the non-Bloch bulk-boundary correspondence for 1D multiband chiral symmetric non-Hermitian systems.

Entanglement based six-state quantum cryptography protocol: exact proof of security

A novel quantum key distribution (QKD) protocol is proposed, which uses six states of three states in two bases. The protocol provides a greater range of key distribution compared to known QKD protocols. The protocol has an accurate proof of secrecy based on fundamental entropy uncertainty relations, the use of which is possible with the entanglement version of the protocol. The implementation of the protocol does not require adjustment of the polarization state at the output of the communication line, since the receiving side does not use active polarization-sensitive elements—phase modulators, which virtually excludes active probing of the active elements of the system.

PLANT DNA BARCODES: APPLICATION IN HERBAVIGILANCE

Globally, 80% of the world population uses the herbal medicines. Wellbeing is a key guideline in arranging natural prescriptions and herbal products for medical care, and a basic segment of value control. Among consumers, there is a widespread misconception that “natural” always mean “safe.” However, certain adverse occurrences recorded in relation with herbal products are due to quality issues. Ongoing improvements in sub-atomic plant ID utilizing DNA arrangement information empower exact recognizable proof of plant species from herbal prescriptions utilizing characterized DNA markers for identification of species by the application of short sequence of genome by DNA barcoding. It depends on three unique cornerstones of current scientific classification, including molecularization (i.e., the utilization of the fluctuation of sub-atomic markers as discriminator; computerization (i.e., the non-repetitive rendering of the information utilizing informatic; and normalization (i.e., the augmentation of a way to deal with general gatherings of not carefully related life forms). DNA meta-barcoding is a specific application of this field which includes several organisms. Both the techniques are highly demandable for the rapid authentication of herbal drugs. The implementations for a strong and exhaustive barcoding framework are advocated and promise a scope of potential advantages, both monetarily and environmentally. The age and curation of DNA reference information of natural medications should turn into a public opinion need and perceived as a basic science foundation of the pharma world.

Nielsen identities in screened theories

One-loop explicit expressions are derived for the gluon Nielsen identity in the formalism of the screened massive expansion for Yang-Mills theory. The gauge-parameter-independence of the poles and residues is discussed in a strict perturbative context and, more generally, in extended resummation schemes. No exact formal proof was reached by the approximate resummation schemes, but some evidence is gathered in favor of an exact invariance of the phase, consistently with previous numerical studies.

Modeling the determinants of BIM-enabled integration and collaboration

PurposeBIM research to date has in general zeroed in on featuring the significance of BIM-enabled integration and collaboration (BIMIC) rather than giving exact proof of its occurrence. Accordingly, this research quantitatively explored the determinants of BIMIC in South Africa.Design/methodology/approachThis research conceptualized a four-pillar model of BIM-enabled integration and collaboration. The speculations in the model were examined using SEM-MLE.FindingsThe aftereffects of the SEM-MLE demonstrated that network communication, knowledge sharing, and transfer, information sharing and exchange and trust-based relationships are critical determinants of BIMIC. The model's prescient power demonstrates an acceptable validity, and the boundary gauges showed that all the hypotheses were measurably huge.Research limitations/implicationsThis research gives a hypothetical premise for further investigation of BIMIC by supporting the postulations on the occurrence of collaboration and integrations among the BIM-SCM.Practical implicationsThe idea investigated involving SEM in this research gives a holistic view to the BIM managers in arranging BIM-based activities and overseeing BIM cycles and supply chain members. It likewise offers rules and structures for accomplishing and overseeing integration and collaboration among the BIM supply chain members.Originality/valueDespite 20 years of exploration on the BIM concept and adoption, no idea has been given to clarify the determinants of integration and collaboration as a BIM cycle. The four-pillar model of BIMIC created and tested in this research clarified BIMIC and contributed a new model to the current literature on the BIM process.

Forecasting the demand for medical tourism in different cities of Malaysia

Tourism, combined with the articulation medical, is apparently one more sort of tourism which has acquired massive acclaim in continuous numerous years. In any case, different compositions open with regards to the tourism business and the earnestness of the destinationbe that as it may, the significant viewpoints which determine the fulfillment of medical travelers are not really centered explicitly around Malaysia. There is an absence of exact proof in this space of study which should be connected. Consequently, this study pointed toward investigating the different elements assisting in the development of medical tourism in Malaysia Because the purpose of the study was to find several elements that contribute to the improvement of medical tourism in Malaysia, the data was examined using Structural Equation demonstrating (SEM). Medical travellers who came to Malaysia with the primary intention of looking for medical frameworks other than touring were the authentic people for this study. During the months of December 2012 and February 2013, a total of 266 models were constructed using non-probability judgement inspection. The findings show that destination reality and organisation quality have a significant role in the medical traveler's decision to visit Malaysia for medical tourism.

The Equivalent Circuits Thévenin and Norton

Abstract The main objectives of this paper are to correctly define the equivalent Thévenin and Norton circuits and to presents the complete and exact proof of Thévenin and Norton theorems. These circuits allow the separation of the linear portions of the electronic circuits from the nonlinear ones and in this way the polarization process of the electronic devices becomes much more efficient. When linear and/or nonlinear analyzed circuits have a small number of nonlinear circuit elements, their analysis, synthesis, and simulation are performed much more efficiently if the nonlinear part of the circuit is separated from the linear one. By determining the equivalent Thévenin or Norton circuits in relation to the load to connected terminals of a system with two or more magnetic coupled coils, that are part of the wireless power transfer systems, optimal load parameters are determined so that the maximum active power is transmitted to the load.

Ideação suicida como fator associado à síndrome de Burnout em estudantes de Medicina

RESUMO Objetivo Identificar a prevalência e fatores associados à síndrome de Burnout nos estudantes de Medicina. Métodos Estudo transversal com estudantes de Medicina de uma instituição privada de ensino na região Sul do Brasil. Utilizou-se o Maslach Burnout Inventory – Student Survey para a identificação da síndrome e um instrumento para a coleta de informações sociodemográficas, hábitos, rotina e situação acadêmica. Realizou-se análise descritiva dos dados e avaliaram-se associações entre as informações obtidas a partir do instrumento de coleta com a presença da síndrome de Burnout, utilizando-se razões de prevalência por meio do teste qui-quadrado ou teste de Fisher. Associações com valor de p < 0,25 foram inseridas em um modelo multivariado, em formato step-forward, utilizando-se regressão de Poisson. Foram consideradas significativas associações com valor de p < 0,05. Resultado Quinhentos e vinte e dois (88,2%) alunos participaram da pesquisa. A prevalência da síndrome de Burnout foi de 12,3%. As associações com síndrome de Burnout que possuíram valor de p < 0,25 foram “não viver com parceiro”, “residir sozinho”, “dormir até cinco horas por dia”, “ter até cinco horas semanais de lazer”, “possuir pensamento suicida” e “realizar acompanhamento psicológico”. Após inserir essas variáveis no modelo multivariado, identificou-se apenas 10% de maior probabilidade de síndrome de Burnout no estudante que relatou pensamento suicida, sendo esse o único fator associado encontrado à ocorrência de burnout (p < 0,001). Conclusão A prevalência de síndrome de Burnout entre os acadêmicos de Medicina foi de 12,3%, e apenas a presença de pensamentos suicidas durante o curso foi associada à sua ocorrência.

Craniofacial photographic superimposition: New turns of events

Craniofacial superimposition is a strategy utilized in the field of scientific humanities to aid the examination of an obscure skull. The cycle includes superimposing a picture of the recuperated skull over a bet mortem picture of the speculated person. In the previous twenty years, there has been a decrease in the application because of the advancement of atomic investigation as a more exact and precise distinguishing proof procedure

Ultrasensitive optomechanical detection of an axion-mediated force based on a sharp peak emerging in probe absorption spectrum

Axion remains the most convincing solution to the strong-CP problem and a well-motivated dark matter candidate, causing the search for axions and axion-like particles(ALPs) to attract attention continually. The exchange of such particles may cause anomalous spin-dependent forces, inspiring many laboratory ALP searching experiments based on the detection of macroscopic monopole–dipole interactions between polarized electrons/nucleons and unpolarized nucleons. Since there is no exact proof of the existence of these interactions, to detect them is still of great significance. In the present paper, we study the electron–nucleon monopole–dipole interaction with a new method, in which a hybrid spin-nanocantilever optomechanical system consisting of a nitrogen-vacancy(NV) center and a nanocantilever resonator is used. With a static magnetic field and a pump microwave beam and a probe microwave beam applied, a probe absorption spectrum could be obtained. Through specific peaks appearing in the spectrum, we can identify this monopole–dipole interaction. And we also provide a prospective constraint to constrain the interaction. Furthermore, because our method can also be applied to the detection of some other spin-dependent interactions, this work provides new ideas for the experimental searches of the anomalous spin-dependent interactions.

Secure Authentication with Iris using Hamming Distance

Biometrics authentication is the automated recognition of physiological or behavioral characteristics of a person without any previous knowledge. It adds a unique identifier and it is extremely difficult to duplicate. One of the most unique biometric authentication structures is iris pattern. It is the most solid and exact distinguishing proof structure existing around. The exhibition of this acknowledgment framework can be estimated with quality and acknowledgment rate. In the proposed work, iris code were generated by the processing the iris image by applying preprocessing, gaber filter, normalization, feature encoding by Fast Fourier Transform and then Hamming distance was used for pattern matching. The overall success rate shows that iris recognition is a reliable and accurate biometric authentication.

Migration and Mobility in the Age of Disruption

This research is focusing on various factors involving impact on adults and youngsters by migration and mobility in the age of disruption. The issue of whether migration has ramifications for the instruction of kids who stay behind in the nation of source possesses an undeniably conspicuous spot in the plans of the two researchers and strategy creators. The customary way of thinking is that the migration of relatives may profit youngsters by loosening up spending limitations through settlements that can be utilized to cover instructive costs. In any case, the exact proof on the general impact of movement is uncertain. This is expected to a limited extent to a substantive accentuation on settlements in the writing, just as the powerlessness of certain investigations to manage the endogeneity of family relocation choices in contrasting results crosswise over transient and non-vagrant families.

Computer Aided Classification and Detection of Leaf Disease using ANN

The contribution of a plant is highly important for both human life and environment. Diseases will affect plant, like all humans and animals. Various diseases may affect plant which disturbs the plants normal growth. Leaf, stem, fruit, root, and flower of the plant may get affected by these diseases. Without proper care the plant may die or its leaves, flowers, and fruits drop. Finding of such infections is required for exact distinguishing proof and treatment of plant sicknesses. The current technique for plant malady discovery utilizes human contribution for distinguishing proof and characterization of illnesses and these strategies endure with time-unpredictability. PC supported programmed division of illnesses from plant leaf utilizing delicate registering can be fundamentally valuable than the current techniques. In this paper, we proposed a method using Artificial neural network (ANN) for identification, classification and segmentation of diseases in plant leaf automatically. In the proposed system capturing the leaf images is done first and then contrast of the image is improved by using Contrast Limited Adaptive Histogram Equalization(CLAHE) method. Then, color and texture features are extracted from the segmented outputs and the ANN classifier is then trained by using that features and it could able to separate the healthy and diseased leaf samples properly. Exploratory outcomes demonstrate that the arrangement execution by ANN taking list of capabilities is better with an exactness of 98%.

The Mobile Sensor Deployment Problem and the Target Coverage Problem in Mobile Wireless Sensor Networks are NP-Hard

Recently, the problem of scheduling mobile sensors to cover all targets and maintain network connectivity such that the total movement distance is minimized, termed the mobile sensor deployment (MSD) problem, has received a great deal of attention. However, the complexity of the MSD problem remains unknown because no exact proof has been provided before. In this paper, we show that not only the MSD problem, but also its special case, termed the target coverage problem, are NP-hard.

Quantum Key Distribution with Nonbinary Phase–Time Encoding That Admits an Exact Proof of Secrecy

A quantum key distribution (QKD) protocol with nonbinary encoding is proposed that admits an exact proof of secrecy. The protocol provides higher rate of key generation compared with the BB84 protocol and, moreover, has a simple experimental implementation without active elements on the receiver side, that does not require polarization matching at the output of the communication line.

Data Innovation Resource, Information Administration Capacity, and Aggressive Benefit: The Judicious Part of Reserve Assurance

The part of data innovation in information administration has dependably been a begging to be proven wrong subject in writing and practice. In spite of existing documentation with respect to the connection between IT asset what's more, information administration, restricted data is accessible on the diverse sorts of IT assets portraying this relationship. We coordinate two research streams rising in information administration what's more, broaden the writing on IT knowledge administration linkage by examining the directing part of asset sense of duty regarding conjure an unexpected asset point of view. Information from 168 associations in China give exact proof that three sorts of IT assets emphatically influence information administration capacity (IAC), which is decidedly related to upper hand. Moreover, this examination distinguishes two positive semi directing impacts of asset responsibility on the IT resource–IAC relationship. In particular, asset duty straightforwardly what's more, emphatically upgrades IAC, and reinforces the impacts of IT human and IT relationship assets on IAC. We talk about the hypothetical and viable ramifications of the outcomes.

Data Innovation Resource, Information Administration Capacity, and Aggressive Benefit: The Judicious Part of Reserve Assurance

The part of data innovation in information administration has dependably been a begging to be proven wrong subject in writing and practice. In spite of existing documentation with respect to the connection between IT asset what's more, information administration, restricted data is accessible on the diverse sorts of IT assets portraying this relationship. We coordinate two research streams rising in information administration what's more, broaden the writing on IT knowledge administration linkage by examining the directing part of asset sense of duty regarding conjure an unexpected asset point of view. Information from 168 associations in China give exact proof that three sorts of IT assets emphatically influence information administration capacity (IAC), which is decidedly related to upper hand. Moreover, this examination distinguishes two positive semi directing impacts of asset responsibility on the IT resource–IAC relationship. In particular, asset duty straightforwardly what's more, emphatically upgrades IAC, and reinforces the impacts of IT human and IT relationship assets on IAC. We talk about the hypothetical and viable ramifications of the outcomes.

Image potential in lossy dielectrics

The interaction of a point charge with surrounding media (the image potential) is analyzed using the quantum-mechanical description of dielectrics that consistently takes losses in media into account. We have derived a real dielectric function (without an imaginary part) appropriate for lossy dielectrics which, compared to the lossless one, significantly changes the image potential in the standard (first-order) calculations. However, when one adds to the Hamiltonian all higher-order terms caused by the losses, one finds that the image potential remains the same, as if there were no losses in media. Our calculations are approximative when analyzing complicated systems with various lossy dielectrics, but in some simple and essential cases (e.g., a dielectric plate) we are able to give the exact proof.

Implication of Efficient Market Hypothesis for Investment Decisions

The productive mart theory is worried about the conduct of costs in resource mart. The term 'PROFICIENT MART' was at first connected to the share trading system, yet the idea was soon summed up to other resource markets. The efficient market speculation expresses that advantage costs in money related markets ought to mirror all accessible data; as an outcome, costs ought to dependably be steady with 'essentials'. In this paper, an endeavor has been made to break down the basic survey of hypothesis of Efficient Market Hypothesis and its suggestions for venture choice. The present examination is totally in view of the accessibility and use of optional information and writing. The examination made utilization of different articles distributed in Journals and Newspapers of national notoriety. Some rumored handbooks related with back are additionally be utilized. Our point is to talk about the primary thoughts behind the speculation, and to give a guide as to which of its forecasts appear to be borne out by exact proof, and which don't. In looking at the observational proof, we focus on the stock and remote trade markets, however a significant part of the talk is important to other resource markets, for example, the security and subsidiaries markets.