The Mediator Role of Starting New Business in the Relationship between Logistics Performance and Growth

Economic growth refers to the enchancement in per capita income or purchasing power and this process of development. The main feature of economic growth is that continues progress by emergence of new source of growth when necessary. In addition to changes in the sources of economic growth, the indicators that explain economic growth are also changing. Recent recearches show that Gross Domestic Product ( GDP) per capita is accepted as one of the main indicators of growth. Logistics Performance Index (LPI) which has a direct and indirect impact on economic growth, is a World Bank indicator that examines a country’s logistics performance in six sub-dimension. In order to indicate the importance of economic growth and logistics performance, this study investigates the mediator role of starting new business in the relationship between logistics performance and gross domestic product per capita. The aim of the research is to analyze 76 countries based on the data of 2010-2012-2014-2016-2018 according to the data available at the World Bank.  As a result of analyses, the mediation effect of starting new business on the relationship between logistics performance was not established. Even if no starting new business, the improvement in logistics investments directly affects economic growth. Even with existing logistics investments, it contributes to economic growth by increasing efficiency, increasing the capacity and cost of existing companies. In this case, starting new business does not have an mediator role. Keywords:         Logistics Performance Index, Score-Starting a Business, GDP per capita

The Effect of Organizational Change on Trust and an Application

The purpose of this study is to examine the effect of organizational change on organizational trust. The questionnaire of this study was given to 500 people who worked for a private company in the mining sector in Kütahya. 404 valid questionnaires were collected back and analyzed. First of all, explaratory factor analysis was conducted to the data to find out factor distribution. Then, confirmatory factor anal-yses and reliability analysis were conducted to determine the reliability and the scale validity of the questionnaires, respectively. Subsequently, the hypotheses of the model were tested with the structural equation modeling. According to the findings, planned change positively and significantly affects organizational trust

The Mediator Roles Of Attitude Toward The Web Site And User Satisfaction On The Effect Of System Quality On Net Benefit: A Structural Equation Model On Web Site Success

The purpose of this study is to examine the mediator roles of attitude toward the web site and user satisfaction on the effect of system quality on net benefit. A new conceptual model for web site success is developed based on previous models in the literature. System quality is one of the most important antecedent of perception of net benefit for customers of B2C sites. The effect of system quality on net benefit has been through user satisfaction in the literature. Some models included attitude toward the web site dimension in the same level with user satisfaction. Therefore, the research model suggested these two variables play mediator roles on the effect of system quality on net benefit. A structural equation model is used to analyze this model. It is statistically proved that attitude toward the web site and user satisfaction play mediator roles on the effect of system quality on net benefit

The Roles of Unique Product Development and Global Technological Competence in the Effect of International Entrepreneurial Orientation on Company Performance in International Markets: A Study on Born Global Companies

The purpose of this study is to search the mediator roles of unique product development and global technological competence in the effect of international entrepreneurial orientation on company performance in international markets for born global companies. The study was conducted on born global companies which started its international activities in its first 7 years and operate in technoparks in Turkey. Data was collected by a questionnaire from 158 born global companies. According to the method proposed by Baron and Kenny, three models were created and compared with each other. The Structural Equation Modeling (SEM) method was applied because it is more appropriate for complex models. According to the findings of the study, unique product development and global technological competence do not have mediator roles in the effect of international entrepreneurial orientation on company performance in international markets. However, there is a direct effect of international entrepreneurial orientation on company performance in international markets. Global technological competence has a direct effect on performance in international markets. On the other hand, unique product development does not have a direct effect on performance in international markets but unique product development has a direct effect on global technological competence

Falcon Down: Breaking Falcon Post-Quantum Signature Scheme through Side-Channel Attacks

Abstract—This paper proposes the first side-channel attack on FALCON—a NIST Round-3 finalist for the post-quantum digital signature standard. We demonstrate a known-plaintext attack that uses the electromagnetic measurements of the device to extract the secret signing keys, which then can be used to forge signatures on arbitrary messages. The proposed attack targets the unique floating-point multiplications within FALCON’s Fast Fourier Transform through a novel extend-and-prune strategy that extracts the sign, mantissa, and exponent variables without false positives. The extracted floating-point values are then mapped back to the secret key’s coefficients. Our attack, notably, does not require pre-characterizing the power profile of the target device or crafting special inputs. Instead, the statistical differences on obtained traces are sufficient to successfully execute our proposed differential electromagnetic analysis. The results on an ARM-Cortex-M4 running the FALCON NIST’s reference software show that approximately 10k measurements are sufficient to extract the entire key

A Hardware-Software Co-Design for the Discrete Gaussian Sampling of FALCON Digital Signature

Sampling random values from a discrete Gaussian distribution with high precision is a major and computationally intensive operation of upcoming or existing cryptographic standards. FALCON is one such algorithm that the National Institute of Standards and Technology chose to standardize as a next-generation, quantum-secure digital signature algorithm. The discrete Gaussian sampling of FALCON has both flexibility and efficiency needs—it constitutes 72% of total signature generation in reference software and requires sampling from a variable mean and standard deviation. Unfortunately, there are no prior works on accelerating this complete sampling procedure. In this paper, we propose a hardware-software co-design for accelerating FALCON’s discrete Gaussian sampling subroutine. The proposed solution handles the flexible computations for setting the variable parameters in software and executes core operations with low latency, parameterized, and custom hardware. The hardware parameterization allows trading off area vs. performance. On a Xilinx SoC FPGA Architecture, the results show that compared to the reference software, our solution can accelerate the sampling up to 9.83× and the full signature scheme by 2.7×. Moreover, we quantified that our optimized multiplier circuits can improve the throughput over a straightforward implementation by 60%

The Mediator Role of Starting New Business in the Relationship between Logistics Performance and Growth

Economic growth refers to the enchancement in per capita income or purchasing power and this process of development. The main feature of economic growth is that continues progress by emergence of new source of growth when necessary. In addition to changes in the sources of economic growth, the indicators that explain economic growth are also changing. Recent recearches show that Gross Domestic Product ( GDP) per capita is accepted as one of the main indicators of growth. Logistics Performance Index (LPI) which has a direct and indirect impact on economic growth, is a World Bank indicator that examines a country’s logistics performance in six sub-dimension. In order to indicate the importance of economic growth and logistics performance, this study investigates the mediator role of starting new business in the relationship between logistics performance and gross domestic product per capita. The aim of the research is to analyze 76 countries based on the data of 2010-2012-2014-2016-2018 according to the data available at the World Bank. As a result of analyses, the mediation effect of starting new business on the relationship between logistics performance was not established. Even if no starting new business, the improvement in logistics investments directly affects economic growth. Even with existing logistics investments, it contributes to economic growth by increasing efficiency, increasing the capacity and cost of existing companies. In this case, starting new business does not have an mediator role

Elastic foundation effects on arch dams

Earthquake response of an arch dam should be calculated under ground motion effects. This study presents three-dimensional linear earthquake response of an arch dam. Thereby, we considered different ground motion effects and also foundation conditions in the finite element analyses. For this purpose, the Type 3 double curvature arch dam was selected for application. All numerical analyses are carried out by SAP2000 program for empty reservoir cases. In the scope of this study, linear modal time-history analyses are performed using three dimensional finite element model of the arch dam and arch dam-foundation interaction systems. According to numerical analyses, maximum horizontal displacements and maximum normal stresses are presented by dam height in the largest section. These results are evaluated for rigid and various elastic foundation conditions. Furthermore, near-fault and far-field ground motion effects on the selected arch dam are taken into account by different accelerograms obtained from the Loma Prieta earthquake at various distances

Seismic Assessment in a Historical Masonry Minaret by Linear and Non-linear Seismic Analyses

Operational Modal Analysis (OMA) method is frequently used in order to determine dynamical properties of historical masonry structures. In this study, damage pattern of historical Alaca minaret which is selected as application is investigated under different ground motions by updating finite element models (FEM) depending on operational modal analysis test. Initial Finite element model was prepared in ABAQUS V10 program and numerical dynamic characteristics of minaret were determined. In addition, experimental dynamic properties of minaret were provided by operational modal analysis. Initial numerical model of brick masonry structure was calibrated via OMA method. Then, linear and non-linear seismic analyses of calibrated FEM of historical minaret were performed by using different earthquakes acceleration records that occurred in Turkey. Concrete Damage Plasticity model was taken into account in non-linear seismic analyses. As a result of the analyses, it is concluded that the stresses obtained with linear analyses aren’t as realistic as the non-linear analyses results and the earthquakes can cause some damages in the minaret. &nbsp

Single-Trace Side-Channel Attacks on ω-Small Polynomial Sampling: With Applications to NTRU, NTRU Prime, and CRYSTALS-DILITHIUM

This paper proposes a new single-trace side-channel attack on lattice-based post-quantum protocols. We target the ω-small polynomial sampling of NTRU, NTRU Prime, and CRYSTALS-DILITHIUM algorithm implementations (which are NIST Round-3 finalists and alternative candidates), and we demonstrate the vulnerabilities of their sub-routines to a power-based side-channel attack. Specifically, we reveal that the sorting implementation in NTRU/NTRU Prime and the shuffling in CRYSTALS-DILITHIUM\u27s ω-small polynomial sampling process leaks information about the ‘-1’, \u270’, or ’+1\u27 assignments made to the coefficients. We further demonstrate that these assignments can be found within a single power measurement and that revealing them allows secret and session key recovery for NTRU/NTRU Prime, while reducing the challenge polynomial\u27s entropy for CRYSTALS-DILITHIUM. We execute our proposed attacks on an ARM Cortex-M4 microcontroller running the reference software submissions from NIST Round-3 software packages. The results show that our attacks can extract coefficients with a success rate of 99.78% for NTRU and NTRU Prime, reducing the search space to 2^41 or below. For CRYSTALS-DILITHIUM, our attack recovers the coefficients’ signs with over 99.99% success, reducing rejected challenge polynomials’ entropy between 39 to 60 bits. Our work informs the proposers about the single-trace vulnerabilities of their software and urges them to develop single-trace resilient software for low-cost microcontrollers