Miracle-dz/UniFAR-FTUs huggingface dataset:
Linearity performance comparison of cascode current source and single-device current source IDPs; analyses, simulations and measurements

The input differential pair (IDP) is usually a major source of nonlinear distortion in any op-amp. This is especially true if the input signal has a large common-mode component, as is the case when an op-amp functions as a unity-gain buffer or as part of a single-ended sample-hold (S/H) circuit. In this paper, we analyse the distortion of the commonly used cascode current source IDP structure and explain the sources of its nonlinear behaviour. Next, a special design technique is proposed which enhances the linearity of IDPs. The circuit uses a single device current source that has the same channel length while its width is double those of IDP devices. Theoretical analysis, as well as simulation and experimental results, is given to confirm the improved linearity of a unity gain buffer. Simulations predict improvements up to 20 dB. 15 dB total harmonic distortion (THD) reduction was also achieved for a 15 MHz input signal based on measurement of a test chip. The method is valuable as power supply voltages shrink, and the design offers extra voltage headroom at input.
A Three-stage 3.1-10.6 GHz Low-noise Amplifier with High and Flat Gain, Consuming 3.7 mw power from a 1.8 V Supply Using Triple Coordination Technique

Abstract A 3.1 to 10.6 GHz low-noise amplifier (LNA) in 0.18 μm technology is presented in this paper. The proposed LNA is implemented in a three-stage structure, including a current reusing cascode structure, a middle stage which compensates gain roll off in middle band and a buffer stage. The low-power dissipation of the design along with the high and flat gain provides a very appropriate combination in ultrawideband frequency design. The designed LNA achieves an average gain of 20 dB and a noise figure less than 2. The power consumption of the design is 3.7 mw.
Mine detection and sensing technologies-new development potentials in the context of humanitarian demining

Humanitarian demining aims for a total clearance of all types of landmines from infected areas and infrastructures as efficiently and as safely and as rapidly as possible while keeping cost to minimum. It requires that each individual mine in an area to be located, uncovered and removed or destroyed. The focus is to make these areas economically viable and usable by the people for different activities and to allow people to use their land without fear. The targets of mine detection and sensing technologies are to achieve a high probability of detection rate while maintaining low probability of false alarm. This paper presents the landmine problems, the problems facing humanitarian demining, priorities and an evaluation of mine detection techniques and technologies along with their new development potential in the context of humanitarian demining.
Clinicopathological correlation between trophic-adipose levels and poor prognosis outcomes in Brazilian women diagnosed with breast cancer

Clinicopathological correlation between trophic-adipose levels and poor prognosis outcomes in Brazilian women diagnosed with breast cancer Correlação clínico-patológica entre níveis trófico-adiposos e desfechos de mau prognóstico em mulheres brasileiras diagnosticadas com câncer de mama Daniel Rech1,2, Daniel G Tebaldi1, Jessica Malanowski1, Thalita B Scandolara3, Hellen dos Santos Jaques1, Fernanda Mara Alves1, Gessica T Teixeira1, Janaína Carla da Silva1, Maria Eduarda Vasselai1, Juliana B Moura1, Rayana T Damo1, Carolina Panis1
New Public Management in Taiwan Higher Education: Are We There Yet?

As public universities in Taiwan are state-dependent organizations and historically enjoy higher prestige than private universities and receive more talented students, faculty and resources, this study aims to gain a deeper understanding of how the public universities are governed. Due to a worldwide public administration reform phenomenon since the late 1970s, New Public Management (NPM) is assumed as the superiority of managerial techniques. This study is to analyze, particularly, how the leading public universities in Taiwan strategize to pursue international competitiveness in the globalized era through the lens of New Public Management. Not only review of literature and legislative documents are utilized to analyze the overall situation of governance of public universities in Taiwan. In order to learn at first-hand about stakeholders’ perspectives, the author also interviewed eleven participants, ranging from vice presidents, senior administrators, to students, from public universities to gain the insights. The interview result data analysis was carried out inductively via coding using the ATLAS.ti software. The result suggests that NPM principles have yet to be firmly incorporated into Taiwan’s higher education and university global competitiveness can be enhanced if the elements of NPM can be applied in university governance since the effectiveness and efficiency of its operation can be improved. On this basis, future research can be focused on what causes the retardation in the implementation of the NPM practice in Taiwan’s higher education and how to enhance a university governance structure or model, especially in the country where bureaucratic structure and top-down decision making model in HEIs remains dominant.
Multi-mode vibration control of a flexible cantilever beam using adaptive resonant control

In this paper, an adaptive resonant controller is used to attenuate multi-mode vibrations in a flexible cantilever beam structure with varying loading conditions. This controller is particularly designed for structures that are exposed to previously unmodelled dynamics. On-line estimation of the structure’s natural frequencies is used to update the adaptive resonant controller’s parameters. The estimation of the natural frequencies is achieved using a parallel set of second-order recursive least squares estimators, each of which is designed for a specific vibration mode of concern. To achieve the desired estimation accuracy for each mode frequency, a different sampling rate suitable for that mode is used for the corresponding estimator. Experiment results show that the proposed adaptive strategy can achieve better performance, as measured by attenuation level, over its fixed-parameter counterpart for a range of unmodelled dynamics.
Reducing the Awareness-Motivation-Capability Barriers for Cooperation: Case Study of Taiwan Glass Group

The Awareness-Motivation-Capability (A-M-C) perspective has been proven fruitful in the literature of competitive dynamics among firms. This paper is aimed to apply the A-M-C perspective in a cooperative dynamics. By analyzing the cooperation process of the illustrative case- Taiwan Glass Group (TGG), this research shows that in cooperative dynamics, a firm can expect quicker responses from its cooperative actors by reducing the A-M-C barriers of response within a cooperative group. On the other hand, the earlier research shows that, in the competitive dynamics, a firm tries to retard responses from its competitors by increasing its A-M-C barriers of the response.
Soft Robotics Technologies to Address Shortcomings in Today's Minimally Invasive Surgery: The STIFF-FLOP Approach

Most devices for single-site or natural orifice transluminal surgery are very application specific and, hence, capable of effectively carrying out specific surgical tasks only. However, most of these instruments are rigid, lack a sufficient number of degrees of freedom (DOFs), and/or are incapable of modifying their mechanical properties based on the tasks to be performed. The current philosophy in commercial instrument design is mainly focused on creating minimally invasive surgical systems using rigid tools equipped with dexterous tips. Only few research efforts are aimed at developing flexible surgical systems, with many DOFs or even continuum kinematics. The authors propose a radical change in surgical instrument design: away from rigid tools toward a new concept of soft and stiffness-controllable instruments. Inspired by biology, we envision creating such soft and stiffnesscontrollable medical devices using the octopus as a model. The octopus presents all the capabilities requested and can be viewed as a precious source of inspiration. Several soft technologies are suitable for meeting the aforementioned capabilities, and in this article a brief review of the most promising ones is presented. Then we illustrate how specific technologies can be applied in the design of a novel manipulator for flexible surgery by discussing its potential and by presenting feasibility tests of a prototype responding to this new design philosophy. Our aim is to investigate the feasibility of applying these technologies in the field of minimally invasive surgery and at the same time to stimulate the creativeness of others who could take the proposed concepts further to achieve novel solutions and generate specific application scenarios for the devised technologies.
Subluxed Shoulders Need “TLC”: A Pilot Study of T-L-C Elastic Taping to Address Hemiplegic Shoulder Pain, Passive Range of Motion, and Sub-luxation

Shoulder subluxation, abnormal tone, and hemiplegic shoulder pain are common sequelae for patients with neurological conditions. Therapists have used elastic taping to treat these consequential conditions in rehabilitation settings with inconsistent techniques and results. The use of elastic tape to treat shoulder subluxation, abnormal tone, and hemiplegic shoulder pain may result in increased participation in activities of daily living and functional activities; however, evidence-based approaches to guide taping are still emerging. An elastic taping method called the "T-L-C" method has been developed to establish a consistent approach for the assessment and taping to ensure patients are being treated with evidence-based techniques.
Tapered mode multiplexers based on standard single-mode fibre

We report mode multiplexers with single-mode inputs directly compatible with standard telecoms fibres. They are made by fusing and tapering three such fibres in a fluorine-doped silica capillary. The fused fibres act as the core of a multimode fibre, in which three individual modes could be separately excited. The loss is 0.6-0.7 dB.
The genesis of torsional drillstring vibrations

Inherent drilling characteristics of polycrystalline diamond compact (PDC) bits alone can be sufficient to excite severe torsional drillstring vibrations. The work presented in this paper augments previous findings that torsional vibrations can result from the drilling characteristics of the bit itself. Laboratory and field torsional measurements are compared with model results to show that the observed vibrations can be explained by a reduction in PDC bit torque as rotary speed increases. These torsional vibrations are important because they can cause drillpipe fatigue and may be severe enough to damage the bit. The model also is used to pinpoint possible solutions to the problem.
A Novel Electronically Controllable of Current-Mode Level Shifted Multicarrier PWM Based on MO-CFTA

This paper proposes the application of an elec- tronically controlled current-mode for a level shifted multi- carrier PWM generator. The proposed circuit consists of two multiple-output current follower transconductance amplifiers (MO-CFTAs) for the multiple-output triangular generator and four current follower transconductance amplifiers (CFTAs) for the signal comparator. The char- acteristics of the circuit are as follows: the current output can be controlled by bias current, the maximum amplitude deviation due to temperature variation is less than 1.37 % and the power consumption is approximately 0.744 W, at ±1.5 V supply voltages. The proposed PWM has been veri- fied through PSpice simulation results which are in con- sistent with the theoretical analysis.
Bioethanol as a Vehicular Fuel: A Critical Review

Abstract As concern about global warming and dependence on fossil fuels grows, the search for renewable energy sources that reduce CO2 emissions becomes a matter of widespread attention. Production of ethanol (bioethanol) from biomass is one way to reduce both the consumption of crude oil and environmental pollution. Using bioethanol-blended fuel for automobiles can significantly reduce petroleum use and exhaust greenhouse gas emission. While more expensive to produce than other fuel types, bioethanol production boosts the farm economy. Up to 80% of production cost is the cost of feedstock. Bioethanol can be produced from cellulose feedstocks such as corn stalks, rice straw, sugar cane bagasse, pulpwood, switchgrass, and municipal solid waste.
Assessment of Hazards in the Construction of Mountainous Expressway: MLES Approach

When it comes to mountainous expressway construction, the eye of attention usually lands on the subject of security. Performing a risk assessment of potential hazards on construction sites are critical to the on-site security. As the disadvantages of the LEC assessment becomes more clear, in terms of evaluating hazards of mountainous expressway construction, this paper proposes the MLES risk assessment, which takes into account the degrees to which harmful factors are controlled on the construction site. Other advantages this method offers are comprehensive estimations of all kinds of losses caused by hazards whose damage is examined from such aspects as casualties, property loss, environmental damage and a given accident’s impact on the construction progress. The stated comprehensive estimation enables engineers to create and enable effective counter measures to curb or control hazards. The MLES risk assessment can be used either to estimate the effects of an individual hazard, or comprehensively evaluate the risk of a work unit based on an examination of each hazard embedded in the work unit.
On creating small datasets for training embedded acoustic scene classification systems via time-frequency segmentation

—Acoustic Scene Classiﬁcation (ASC) systems have great potential to transform existing embedded technologies. However, research on ASC has put little emphasis on solving the existing challenges in embedding ASC systems. In this paper, we focus on one of the problems associated with smaller ASC models: the generation of smaller yet highly informative training datasets. To achieve this goal, we propose to employ the so-called multitaper-reassignment technique to generate high-resolution spectrograms from audio signals. These sharp time-frequency (TF) representations are used as inputs to a splitting method based on TF-related entropy metrics. We show via simulations that the datasets created through the proposed segmentation can successfully be used to train small convolutional neural networks (CNNs), which could be employed in embedded ASC applications.
Recomendaciones clínicas para la rehabilitación de personas con fibromialgia. Una revisión narrativa.

1Departamento de Procesos Terapéuticos. Facultad de Ciencias de la Salud. Universidad Católica de Temuco, Chile. 2Programa de Integración Escolar. Colegio el Refugio. Penco, Chile. 3Sala de Rehabilitación. CESFAM San Vicente. Talcahuano, Chile. 4Servicio de Kinesiología. Clínica Los Conquistadores. Santiago, Chile. 5Centro del Dolor. Las Condes. Santiago, Chile ORIGINAL DOI: 10.20986/resed.2021. 3932/2021
Physical Activity Changes during the Spring 2020 COVID-19 Shutdown in the United States

ABSTRACT Introduction/Purpose The purpose of this study was to examine how and why physical activity (PA) changed during the COVID-19 pandemic, from early March to June 2020 in the United States. Methods A survey was distributed on social media. US adult residents were asked about their PA habits before and during the spring shutdown, such as average days of exercise, minutes per session and session intensity, and likelihood of maintaining pandemic PA habits for 1 yr. Results A total of 873 individuals completed the survey. The sample was 85.3% female (n = 745) with an average age of 38.7 ± 12.9 yr. More than half (89.3%) of the participants were non-Hispanic White, 89.9% reported an income greater than $45,000, and 87.6% earned a bachelor’s degree or higher. The proportion of participants who reported meeting or exceeding the guidelines of 150 min of moderate-to-vigorous PA per week was 52.7%. The proportion of participants not meeting the PA guidelines decreased by 7.8% during the shutdown. The proportion of participants exceeding the PA guidelines increased by 11.3%. PA days per week significantly increased during the shutdown (3.75 ± 1.9 to 4.27 ± 2.1 d, P < 0.001), whereas minutes per session remained consistent (1.87 ± 0.95 to 1.93 ± 0.98 min, P = 0.10; 1, 1–30 min; 2, 31–60 min). Average intensity of exercise sessions significantly decreased (2.81 ± 1.16 to 2.62 ± 1.14, P = 0.001). Participants reported decreased fitness center access and more outdoor walking. Overall, 73.4% of the participants indicated they were likely to maintain shutdown PA habits for 1 yr. Almost all (93.8%) of those who increased their PA during the shutdown reported they were likely to maintain their habit for 1 yr. Participants who did not change were more likely to report they would maintain PA levels for 1 yr compared with those who decreased PA levels during the shutdown. Conclusions Generally, US adults increased PA during the COVID-19 shutdown. This study provides insight into how routine disruption may affect PA habits.
Evaluation of Conflict and Resolution Strategies of Administrators According to Teacher Views

The purpose of this research is to examine the views of teachers working in secondary school principals found in the central districts of the conflict management strategy is intended to assess the situation. The research data were collected using qualitative research methods. Interview method was used to obtain the data. Semi-structured interview form was used in the research. The study group of the study consists of 46 teachers working in secondary schools According to the results obtained from the findings of the study, it was stated that teachers 'principals' solution-oriented behavior in solving the conflicts experienced in the school and showing a leading behavior in this issue was stated to be the most important responsibility. Communication-related problems are in the first place in experiencing conflicts. Regarding the communication skills of the school principal, the teachers stated that the concept of empathy in communication, active listening, solution-oriented and respect for different ideas should be the communication behavior of the school principal. It is observed that school principals have critical ideas as well as positive teachers' opinions about the concept of empathy in communication. According to the opinions of the teachers, they stated that the school principals did not have a vision determined in their schools or that this vision was never expressed. The absence or non-implementation of the concept of vision in schools will prevent the realization of the goals and objectives of the school, and will not take advantage of opportunities such as innovation and change. The school administrator should determine the vision of the school and take a joint decision with its employees and lead and pioneer in ensuring that the change that puts the changing technologies of the age into the service of the school spreads throughout the school.
A PRELIMINARY INVESTIGATION OF THE COMPARISON OF RIGHT-HANDED VERSUS LEFT-HANDED COMPUTER MOUSE USE

This study compares upper-extremity postures during right-handed and left-handed computer mouse use. Thirty-one subjects from a large telecommunications company were tested in a laboratory setting. The subjects performed a series of tasks with various actions typical of computer mouse use. The group of tasks were performed randomly under three conditions: two with the right hand and one with the left. A tri-dimensional optoelectronic movement analysis system was used to collect kinematics data and to compute wrist, elbow and shoulder angles. Our results show that postural constraints may be reduced when the mouse is used with the left hand compared to the right hand.
How Does a Traumatic Experience During Youth Aect Life Later? The Long-term Impact of the Send-down Program During the Chinese Cultural Revolution

Under the send-down policy (1968-1978) during the Chinese Cultural Revolution, more than 16 million adolescents in urban areas were forced to move to rural areas to carry out hard manual labor. During this time, education in general was interrupted. However many were able to upgrade their education after the revolution. This paper suggests that the sent-down males were signicantly more likely to have had education upgrading after the Cultural Revolution. Using the variation from the supply side of the education system as an instrumental variable strategy, this paper shows that conditional on education upgrading, the sent-down males earn 35% higher income than the non-sent-down males who also received education upgrading. Conditional on education upgrading, the sent-down males are also more likely to have computers at home. Both sent-down and non-sent-down males, however, are equally likely to own other major home appliances such as color TVs, air conditioners, or video cameras. These ndings are shown to be robust to a variety of controls for family background. The send-down experience has had no signicant impact on females.
Cost-benefit analysis of power system reliability: two utility case studies

There is an emerging recognition that utility investments and other decisions that affect electric service reliability should be explicitly evaluated on the basis of their cost and benefit implications. A cost-benefit approach that quantifies the reliability benefits of alternatives in terms of the reduction in costs resulting from unserved energy enables the evaluation of generation and transmission capacity additions on a consistent, economic basis. This approach has been applied to two utility case studies. In a case study for Pacific Gas and Electric Company, it was used to evaluate three options for maintaining reliability in a major load center-two involving local generation, and the third, a new 230 kV transmission connection. In a case study for Duke Power Company, the approach was used to evaluate alternative designs for proposed additions to a transmission station. This paper describes the methodology and presents the two utility studies. >
Dynamic path planning of unmanned aerial vehicle based on crowd density prediction

: With the rapid growth of the number of unmanned aerial vehicles (UAVs), in order to assess the risk of people on the ground especially in cities, improve the operational efficiency of UAV, and reduce the threat of UAV to the crowd, it is necessary to make a specific path planning for UAVs based on the crowd density. However, static demographic data are still used as the ground risk analysis basis for the path planning of UAV, and real-time path planning of UAV according to the spatial-temporal characteristics of crowd density are often not performed. This study first analyzed the characteristics of urban road network crowd density based on the spatiotemporal data. Second, the convolutional neural network-long short-term memory (CNN-LSTM) combined model (C-Snet model) was established to predict the population density in different urban areas. Finally, the improved A* algorithm was used for real-time path planning and risk assessment of UAV according to the predicted crowd density data. The results show that the risk of UAV operation is reduced by 76%, which can provide a theoretical reference for the development of real-time path planning function of UAV traffic management system.