Miracle-dz/UniFAR-FTUs huggingface dataset:
Biomachining of oxygen-free copper: development of a continuous process for industrial application

Today, environmental sustainability is one of the main goals of all manufacturing industries. Pollution isincreasing day by day and environmental laws are becoming more stringent. Therefore, companies needto transform to meet their traditional objectives of cost reduction and good product quality, but also makeefforts to implement a green and innovative set of technologies. One of the emerging process, not yetimplemented in industry, is biological machining or biomachining, also known as machining via bacteria.The principal objective of the thesis was to investigate the possibility of obtaining a continuousbiomachining process, where the removal rate would be constant over time. No investigation has beenpublished up to date about this topic. For this purpose, the biomachining in 9K medium with A.ferrooxidans bacteria was studied from different points of view. A culture medium and bacteria not usedin this field before were tested in order to improve the material removal rate. The continuity was achievedby introducing regeneration periods between successive biomachining stages, and based on this idea, areactor was designed in view of the industrial application of the continuous biomachining. Abiomachining process for a definite geometry by means of covering the surface of the workpiece with aresin and laser engraving was defined, and also a physicochemical method for treating the liquid residueobtained in the process.
EVALUATION OF RKVY PROJECTS “CLIMATE CHANGE AND ITS EFFECT ON IMPORTANT AGRICULTURAL CROPS OF HYDERABAD KARNATAKA REGION”

The intensified human activities globally have resulted in the use of natural resources which has contributed significantly to the global warming (climate change). Global warming lead to the increase in the concentration of greenhouse gases, namely carbon dioxide, methane, chlorofluorocarbons and nitrous oxide in the atmosphere. On the basis of the increase of these greenhouse gases, climatic models predict a 1.4 o C to 5.8 o C average increase in global warming from 1990 to 2100, probably leading to a more rapid increase in temperature at the surface of terrestrial zones and more extreme local variations. Even if the annual flow of emissions did not increase beyond today’s rate, the stock of greenhouse gases in the atmosphere would reach double preindustrial levels or 550 ppm CO 2 by 2050 and would continue growing thereafter (Bharath Kumar Neelaboina et al, 2018). need
Comparative analysis of microwave low‐noise amplifiers under laser illumination

This article deals with the analysis of the effects of 650 nm laser light exposure of AlGaAs/GaAs HEMTs employed in X‐band low‐noise amplifiers (LNAs). The devices have scaled gate widths of 100, 200, and 300 μm and a gate length of 0.25 μm. They were characterized under dark and illuminated conditions through scattering and noise parameter measurements in the 2–18 GHz frequency range. Starting from the experimental data, LNAs have then been designed and tailored to each device type in dark mode operation over the 7.5–8.5 GHz frequency range. Subsequently, the performance of the LNAs under light exposure has been evaluated by employing the illuminated device data. Therefore, a comparative analysis of the observed variations is here reported to assess the influence of the red laser beam on the amplifier's response with a special concern for the noise behavior due to the inherent interest in optical control of microwave circuitry for high‐data‐rate, low‐noise telecommunication systems. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2437–2443, 2016
The effect of supplier development on outsourcing performance: the mediating roles of opportunism and flexibility

Abstract In this increasingly competitive business environment, firms utilise outsourcing as a strategic tool to leverage globally dispersed resources so that they may focus on their core competencies and improve efficiency. The more firms rely on outsourcing, the more they depend on their suppliers, and the more important it is to manage and develop suppliers in order to achieve and maximise the benefits of outsourcing. This paper explores the impact of supplier development on outsourcing performance. Structural equation modelling was used to analyse data collected from 213 manufacturing firms in China. The results indicate that supplier development has a strong direct positive impact on outsourcing performance, and that supplier development also leads to enhanced outsourcing performance through reducing outsourcing opportunism risk and improving outsourcing flexibility. In addition to making a contribution to current theories of outsourcing, our findings also provide outsourcing managers with practical understanding and insights about the role of supplier development in enhancing outsourcing performance.
Diagnostic Error in General Surgery: Cognitive Bias and Systems Issues in Medical Malpractice Claims

Since the publication of the 1999 Institute of Medicine (IOM) report To Err is Human, a major focus in healthcare has been understanding the cause of medical errors in an attempt to improve quality and safety of care. In a 2016 British Medical Journal study, diagnostic errors were cited as the third leading cause of death in the United States. The IOM 2015 report Improving Diagnosis in Health Care emphasized that diagnostic errors are among the most costly errors in both adverse patient outcomes and malpractice indemnity, while concurrently being under-studied in the patient safety areas in healthcare. Other recent studies, such as those appearing in JAMA Internal Medicine and from CRICO Strategies, the risk management arm of the Harvard Medical Institutions, have also demonstrated these findings. In their 2015 study Improving Diagnosis in Health Care , the IOM defined diagnostic error as “the failure to (a) establish an accurate and timely explanation of the patient’s health problem(s) or (b) communicate that explanation to the patient. ” malpractice in phases the diagnostic led and The EPSS and CSS input vital flowsheets, and other data from their electronic health records, provides an up-to-date, accurate status of patients. Alerts can be to healthcare in real when there are declines in patients’
Music: An Active Tool of Deception? The Case of Brundibár in Terezín

A discussion about the performance of re-orchestrated small opera, Brundibar, in Theresienstadt Concentration camp, known in Czeh as Terez, is presented. In Terez, Brundibar was a work of exceptional importance and power, especially to the Czech internees, and its influence was extended beyond musician, singer and audience to embrace many others who worked toward its conception. It became a powerful point of artistic resistance.
Numerical predictions for environmental acoustics: simulation of atmospheric fields and integration in a propagation model

Outdoor sound prediction is both a societal stake and a scientific issue. Thus this paper deals with numerical simulations of micrometeorological (temperature and wind) fields for environmental acoustics. This is carried out through new developments in the reference mesoscale meteorological model at Meteo-France (Meso-NH). Meso-NH predictions at very low scales (about 1m) including new developments (drag force approach) are validated both numerically and experimentally under stable, unstable and neutral conditions. Then, these information can be used as input data for acoustic models. Our time domain acoustic model is based on Transmission Line Matrix method (TLM). Its development has been done in order to be applied to outdoor sound propagation, i.e. in order to take into account topography, ground impedance, meteorological conditions, etc. The numerical validation of the TLM method by comparison with other models shw the relevance of its use in the context of environmental acoustics. Finally, thanks to these models, simulated noise levels in different propagation conditions were compared to in situ measurements. Satisfying results were obtained regarding the observed phenomena variability. A feasibility study on a more complex experience (LTMS) leads to consider the TLM as an accurate and promising method in the context of environmental acoustics.
Study on the Effect of Employees’ Perceived Organizational Support, Psychological Ownership, and Turnover Intention: A Case of China’s Employee

In the context of severe turnover, taking measures to enhance core employee management, prevent the turnover of talents, and improve employees’ sense of belonging and responsibility to the firm can become a non-negligible problem in human resource management. Considering Chinese enterprises as the research background, this study starts with the related theories of organizational support, psychological ownership, and turnover intention to explore the impact of organizational support on psychological ownership and its dimensions (self-efficacy, taking responsibility, a sense of belonging, and self-identification), the effect of each dimension of psychological ownership on turnover intention, and the relationship between organizational support and turnover intention, as well as verifies the mediating role of psychological ownership. The main findings show that (1) perceived organizational support positively affects psychological ownership; (2) psychological ownership negatively affects turnover intention; (3) perceived organizational support negatively influences turnover intention; and (4) psychological ownership mediates the relationship between perceived organizational support and turnover intention. The study results contribute to the relevant literature and guide human resource practice.
Dynamic Characterization of Galfenol (Fe81.6Ga18.4)

Galfenol has the potential to transform the smart materials industry by allowing for the development of multifunctional, load-bearing devices. One of the primary technical challenges faced by this development is the very limited experimental data on Galfenol's frequency-dependent response to dynamic stress, which is critically important for the design of such devices. This report details a novel and precise characterization of the constitutive behavior of polycrystalline Galfenol (Fe81.6Ga18.4) under quasi-static (1 Hz) and dynamic (4 to 1000 Hz) stress loadings. Mechanical loads are applied using a high-frequency load frame. Quasi-static minor and major hysteresis loop measurements of magnetic flux density and strain are presented for constant electromagnet currents (0 to 1.1 A) and constant magnetic fields 0 to 14 kA/m (0 to 180 Oe). The dynamic stress amplitude for minor and major loops is 2.88 and 31.4 MPa (418 and 4550 psi), respectively. Quasi-static material properties closely match published values for similar Galfenol materials. Quasi-static actuation responses are also measured and compared to quasi-static sensing responses; the high degree of reversibility seen in the comparison is consistent with published measurements and modeling results. Dynamic major and minor loops are measured for dynamic stresses up to 31 MPa (4496 psi) and 1 kHz, and the bias condition resulting in maximum, quasi-static sensitivity. Eddy current effects are quantified by considering solid and laminated Galfenol rods. Three key sources of error in the dynamic measurements are accounted for: (1) electromagnetic noise in strain signals due to Galfenol's magnetic response, (2) error in load signals due to the inertial force of fixturing, and (3) phase misalignment between signals due to conditioning electronics. For dynamic characterization, strain error is kept below 1.2 percent of full scale by wiring two collocated gauges in series (noise cancellation) and through leadwire weaving. Inertial force error is kept below 0.41 percent by measuring the dynamic force in the specimen using a nearly collocated piezoelectric load washer. The phase response of all conditioning electronics is explicitly measured and corrected for. In general, as frequency is increased, the sensing response becomes more linear because of an increase in eddy currents. As frequency increases above approximately 100 Hz, the elbow in the strain-versus-stress response disappears as the active (soft) regime stiffens toward the passive (hard) regime. Under constant-field conditions, the loss factors of the solid rod peak between 200 and 600 Hz, rather than exhibiting a monotonic increase. Compared to the solid rod, the laminated rod exhibits much slower increases in hysteresis with frequency, and its quasi-static behavior extends to higher frequencies. The elastic modulus of the laminated rod decreases between 100 and 300 Hz; this trend is currently unexplained.
A Preliminary Validation Study for the Korean version of the Burnout Assessment Tool (K-BAT)

Some issues on constructs of MBI-GS in the burnout study has been risen. Schaufeli’s team(2019) invented the new measure of Burnout Assessment Tool(BAT) as the second version of burnout inventory, which covers the problematic issues. The present study aimed to validate the BAT among the South Korean sample. The one among 23 items of BAT were excluded based on an exploratory factor analysis using 367 South Korean employees. A four-factor structure of K-BAT (i.e., exhaustion, mental distance, impaired cognitive control, impaired emotional control) was supported by a confirmatory factor analysis using a different 345 employees. Validity tests for a convergence and a discriminativeness were tested by applying the MTMM(Multi-Traits Multi-Methods) model, along with a correlation analysis with MBI. For external discriminative validity, engagement was used. A sequential test for a criterion validity both with demands of workload and role ambiguity and with outcomes of turnover intention and depression was conducted. A convergence, an external discriminative, and a criterion validity were supported respectively, whereas an internal discriminative validity with MBI not supported. Implications and the directions for a consequential study were discussed, with considering the present study as an initial study for validating K-BAT.
Multilingualism as a Classroom Resource for Communicative Language Teaching: A Case of a Primary School in Warren Park, Zimbabwe

This study sought to explore the use of multilingualism as a classroom resource to implement Communicative Language Teaching at a primary school in Zimbabwe. The study employed a single case study design which is qualitative in nature. The population comprised of 21 teachers at the school. Three purposively selected teachers were used as the sample of the study. The study established that multilingualism has different roles that it plays in implementing CLT in the teaching and learning of English language. The learners’ inability to express themselves in English caused teachers to code switch. When code switching was used, learners communicated more effectively and this led to a conclusion that code switching is a powerful technique to use as a resource in a multilingual classroom. Teachers’ positive attitudes towards multilingualism and code switching provided learners with greater opportunities of collaboration in the classroom. It is therefore important for teachers to understand other indigenous languages. The use of multilingualism will not only assist teachers to implement CLT effectively but it will also help learners to learn effectively and improve their communicative skills.
Experimental Study Exploring the Interaction of Structural and Leakage Dynamics

AbstractStrategies for managing leakage from water distribution systems require the ability to effectively evaluate such real losses through the understanding of the behavior of individual leaks, including their response to changes in pressure regime due to demand or management strategies. This paper presents the results from an innovative experimental investigation aimed at understanding the response of longitudinal slits in pressurized viscoelastic pipes, specifically considering the interaction between the structural and leakage dynamics. For the first time, leakage flow rate, pressure, leak area, and material strain were recorded simultaneously, providing new knowledge of the complex interaction of these factors. The paper shows that strain and area are directly related, hence it is possible to employ strain as a predictor of leak area, calculated using a calibrated viscoelastic model. Using such an approach, the leakage flow rates under a range of quasi-static pressures were accurately predicted and .
Comparative analysis of policy responses to residential methamphetamine contamination by two public housing authorities in the United States and New Zealand

Abstract This research aims to compare the policy response to residential methamphetamine contamination by public housing authorities in the United States and New Zealand. We utilize a comparative case study approach to analyze the process of policy development, implementation, and outcomes by the Salish and Kootenai Housing Authority (SKHA, US) and Housing New Zealand (HNZ now Kāinga Ora, NZ). Both housing authorities initially developed their policies based on a ‘zero tolerance’ precautionary principle to protect their tenants’ health and discourage drug related activities. This approach caused unintended consequences for housing agencies and tenants, including significant financial expenditure on methamphetamine testing and remediation, a decline in housing portfolios due to contamination, and termination of tenancies, with imposition of financial penalties, contributing to homelessness. Liability for contamination was determined either by baseline testing (SKHA) or the Tenancy Tribunal (HNZ). In both cases, a review of policies prompted a shift to a harm reduction approach focused on compensating and supporting tenants, avoiding evictions. The initial zero tolerance approach caused considerable harms to vulnerable tenants that likely outweighed the health risks from methamphetamine exposure. This research underlines the importance of developing appropriate policies that balance health risks with possible social impacts of the policy response.
Early and Innovative Rehabilitation in Warkany Syndrome 2 Associated with Agenesis of the Corpus Callosum: A Case Report

Trisomy 8 mosaicism syndrome (T8MS) or “Warkany’s syndrome 2” is a rare chromosomal disorder characterized by three copies of chromosome 8 in some cells of the body. T8MS incidence in the world population is about 1/25,000–50,000 live births with a 5:1 ratio between males and females. Since chromosomal mosaicism is often present in this syndrome, affected subjects present a phenotype varying from mild dysmorphism to severe structural anomalies. Malformations, including corpus callosum agenesis and renal abnormalities, have been described by many studies. We present a case in a girl 36 months in age, born to assisted fertilization (FIVET) and prenatal diagnosis by amniocentesis. In a fetus in the 22 week of gestation, she presented trisomy 8 mosaicism with ventriculomegaly, agenesis of the corpus callosum and a sequence of polymalformations. Through the early identification of symptoms that gradually occurred during development, the girl was submitted, early, to innovative complex instrumental using virtual reality (VR) rehabilitation. This study involves continuous monitoring and early management of symptoms, with the aim of improving the neurobehavioral outcomes of children with this rare disease by inducing structural neuroplastic responses and significantly reducing the impact that this disorder has on the development of children born without corpus callosum.
Examining the Effectiveness of Computer-Supported Collaborative Learning for Language Proficiency Purposes

(1) The main goal of this research was to assess the effectiveness of the computer-supported collaborative learning for language learning purposes using the indicators of students’ learning outcomes and the level of their engagement, as well as to determine the most effective benchmarks for teams’ forming. (2) Methods: A total of 81 undergraduate students studying at the Humanity Institute of Peter the Great Polytechnic University voluntarily participated in the study. For our research, we used the results on final English testing and survey results on students’ engagement. Each year, three groups of students were formed into teams according to three criteria: leadership skills, academic performance and personal choices. Microsoft Excel 2016 tools were used for data interpretation: testing samples for normality, a one-way analysis of variance (ANOVA) and comparison of means. Neural network dependencies of test results were built by means of Mathematica Wolfram Software. (3) Results: According to the results of this study, the underlying principles of forming teams highly influenced the indicators of students’ English proficiency; in particular, the experiment proved the effectiveness of selecting students according to their academic performance. In addition, the correlation analysis revealed that the engagement of students played an important role and influenced the results of their learning. This was especially seen in a group where teams were distributed due to the differences in academic performance. (4) Conclusions: As the COVID-19 pandemic is an ever-changing situation, it is important to implement effective learning models that promote higher learning outcomes and students’ engagement. This study contributes to such knowledge and provides insightful implications to academia.
Combined Pressure-Driven and Electroosmotic Slip Flow through Elliptic Cylindrical Microchannels: The Effect of the Eccentricity of the Channel Cross-Section

Electroosmotic force has been used extensively to manipulate fluid flow in a microfluidic system with various channel shapes, especially an elliptic cylinder. However, developing a computational domain and simulating fluid flow for a system involving an elliptic channel consumes a large amount of time. Moreover, the mathematical expression for the fluid velocity of electroosmotic flow in an elliptic channel may be given in the form of the Mathieu functions that have difficulty in achieving the numerical result. In addition, there is clear scientific evidence that confirms the slippage of fluid at the solid-fluid interface in a microscale system. In this study, we present the mathematical model of combined pressure-driven and electroosmotic flow through elliptic microchannels under the slip-fluid condition. From the practical point of view in fluidics, the effect of the eccentricity of the channel cross-section is investigated on the volumetric flow rate to overcome the difficulty. The results show that the substitution of the equivalent circular channel for an elliptic channel provides a valid flow rate under the situation that the areas of both channel cross-sections are equal and the eccentricity of the elliptic cross-section is less than 0.5. Additionally, the flow rate obtained from the substitution is more accurate when the slip length increases or the pressure-gradient-to-external-electric-field ratio decreases.