Miracle-dz/UniFAR-FTUs huggingface dataset:
Compact Frequency-Reconfigurable Half-Mode Substrate-Integrated Waveguide Antenna

A frequency-reconfigurable antenna based on half-mode substrate-integrated waveguide (HMSIW) technology for size reduction is presented. Its resonant frequency is electronically controlled by a varactor-loaded interdigital capacitor on the top plate of the HMSIW, and the bias network is designed on the bottom plate. Its performance is demonstrated experimentally, with the resonant frequency varied from 2.99 to 3.59 GHz by changing the bias voltage from 0 to 30 V.
Dynamic Behavior of DFIG-Based Wind Turbines during Grid Faults

According to grid codes issued by utilities, tripping of wind turbines following grid faults is not allowed. Besides, to provide voltage support to the grid mandatory reactive current supply is necessary. To enable wind turbines ride-through low voltage periods special protection measures have to be implemented. In this paper the behavior of DFIG based wind turbines during grid faults is discussed and elucidated using simulation results. It is shown that with properly designed crowbar and DC-link chopper even zero voltage ride-through is possible.
Global benchmarking of medical student learning outcomes? Implementation and pilot results of the International Foundations of Medicine Clinical Sciences Exam at The University of Queensland, Australia

Objective: To report pilot results for international benchmarking of learning outcomes among 426 final year medical students at the University of Queensland (UQ), Australia. Methods: Students took the International Foundations of Medicine (IFOM) Clinical Sciences Exam (CSE) developed by the National Board of Medical Examiners, USA, as a required formative assessment. IFOM CSE comprises 160 multiple-choice questions in medicine, surgery, obstetrics, paediatrics and mental health, taken over 4.5 hours. Outcomes: Significant implementation issues; IFOM scores and benchmarking with International Comparison Group (ICG) scores and United States Medical Licensing Exam (USMLE) Step 2 Clinical Knowledge (CK) scores; and correlation with UQ medical degree cumulative grade point average (GPA). Results: Implementation as an online exam, under university-mandated conditions was successful. Mean IFOM score was 531.3 (maximum 779-minimum 200). The UQ cohort performed better (31% scored below 500) than the ICG (55% below 500). However 49% of the UQ cohort did not meet the USMLE Step 2 CK minimum score. Correlation between IFOM scores and UQ cumulative GPA was reasonable at 0.552 (p < 0.001). Conclusions: International benchmarking is feasible and provides a variety of useful benchmarking opportunities.
(#14) Crane Operator Performance Comparing PD-Feedback Control and Input Shaping Using Batch-Gradient Descent

The efficient use of cranes is a necessity to many manufacturing, construction, and shipping port activities. Improving crane efficiency could have a large impact on a variety of industries. For example, payload oscillation increases task completion time, and also increases the likelihood that a crane operator will run into an obstacle. Thus, reducing payload oscillation could help ensure safe and efficient operation of a crane because obstacles would be more easily avoided. This paper introduces a method to estimate the position of a swinging payload as it is moved through an obstacle course. A double–pendulum model can be used to represent the crane as shown in Fig. 1. The frequencies and the associated amplitudes depend heavily on the payload configuration and cable length [1]–[3]. PD-Feedback Control and input shaping were used to control the payload.
Clinical significance of anti-sacchromyces cerevisiae antibody in Crohn ’ s disease : a single-center study

Objectives: To evaluate the clinical significance of serum anti-Saccharomyces cerevisiae antibodies (ASCA) IgG and IgA for diagnosis of Crohn’s disease (CD), and the stability over the course of the disease of its clinical behavior. Methods: Total 51 patients with CD were recruited to as CD group. Control group included 22 healthy subjects. ASCA-IgG and -IgA in serum samples were detected using ELISA. Sensitivity, specificity and positive predictive value (PPV) of ASCA-IgG and IgA were calculated. These patients were followed up for 5 years. Results: ASCA-IgG and ASCA-IgA were significantly different between the CD group and the control group. Among the 51 CD patients, the sensitivity of ASCA IgG was 45.1%, and specificity and PPV were both 100%. The sensitivity of ASCA IgA was 35.3%, specificity was 91% and PPV was 90%. The sensitivity of ASCA-IgG was significantly increased in the patients with complications than the patients without complications (56.3% vs. 26.3%). During the follow-up, those ASCA-IgGpositive CD patients might be more likely to need surgical treatments compared to the ASCA-IgG-negative patients. Conclusions: ASCA IgG could be a useful predictive tool in diagnosis of CD, and the clinical value of ASCA-IgG detection is higher than that of ASCA-IgA.
Effects of Internet Banking on the Financial Performance of Commercial Banks in Kenya a Case of Kenya Commercial Bank

Financial institutions have been in the process of significant transformation. Despite this transformation, even though there’s a richness of information on the nature and scope of internet banking, there is a scarcity of evidence about the impact of internet banking activities among banks that have adopted it compared to those that have not done so. The research aimed at determining the effects of internet-banking on financial performance of financial institutions in Kenya. The study adopted a descriptive survey design. The target population comprised of 31 employees of KCB, Treasury Square in Mombasa Kenya. Data collection was done through the use of questionnaires and analyzed using statistical tool. From the study, it was revealed that the impact of ICT adoption on the performance of banking sector mainly refers to time reductions and quality improvements, rather than cost reductions as reported by many authors.
Assessment of mycobacterial viability by RNA amplification

We investigated whether the presence of intact RNA is a valuable indicator of viability of mycobacteria with Mycobacterium smegmatis. M. smegmatis was exposed to various concentrations of rifampin and ofloxacin suspended in broth for different periods of time. The NASBA nucleic acid amplification system was used because of its rapid, sensitive, and specific detection of 16S rRNA. During drug exposure, the viability of the mycobacteria, expressed by the number of CFU, was compared with the presence of 16S rRNA as determined by NASBA and with the presence of DNA coding for 16S rRNA as determined by PCR. Both NASBA and PCR were shown to have a detection limit of approximately 5 x 10(2) CFU/ml. The intensity of the NASBA signal corresponded well with the number of CFU, and the lack of NASBA signal coincided with a loss of viability, which was reached after 3 days of exposure to bactericidal concentrations of both drugs. The presence of mycobacterial DNA, as determined by the intensity of the PCR signal, and the viability of M. smegmatis were not related, but an increase in the number of cells and intensity of PCR signal correlated well. Bacterial viability may thus be assessed by a rapid, sensitive, and specific, and semiquantitative technique by using NASBA. This system of viability testing provides the potential for rapid evaluation of drug susceptibility testing.
A 700MHz 2T1C embedded DRAM macro in a generic logic process with no boosted supplies

6T SRAMs have been the embedded memory of choice for modern microprocessors due to their logic compatibility, high speed, and refresh-free operation. The relatively large cell size and conflicting requirements for read and write at low operating voltages make aggressive scaling of 6T SRAMs challenging in sub-22nm. Recently, 1T1C embedded DRAMs (eDRAMs) have replaced SRAMs in several server applications reducing the cache area and improving performance [1]. Difficulties in scaling the trench capacitor and the additional process steps involved in manufacturing the thick oxide access devices are currently limiting the wide spread adoption of 1T1C technology. Gain cells have features such as decoupled read and write paths, a nondestructive read, and a 2X higher bit-cell density than a 6T SRAM, making them a strong contender for future embedded memories [2–4]. However, the boosted supplies needed for robust operation necessitates thick oxide devices to prevent gate reliability issues in gain cells. Although this would lead to a larger bit-cell size and decreased macro performance, these limitations have been overlooked in the past. In this paper, we present the following circuit techniques for realizing a truly logic compatible (i.e. thin oxide only implementation) gain cell eDRAM with no boosted supplies; (i) a 2T1C gain cell featuring a beneficial couple-up read and a preferential couple-down write, (ii) a single-ended 7T SRAM to repair weak gain cells, and (iii) a storage voltage monitor capable of tracking PVT and cell retention time for adaptive refresh control. The 64kb test macro in Fig. 28.10. 1 achieves a random cycle frequency of 700MHz and a retention time of 500μsec.
OPFI: A Tool for Opinion Finding in Polish

The paper contains a description of OPFI: Opinion Finder for the Polish Language, a freely available tool for opinion target extraction. The goal of the tool is opinion finding: a task of identifying tuples composed of sentiment (positive or negative) and its target (about what or whom is the sentiment expressed). OPFI is not dependent on any particular method of sentiment identification and provides a built-in sentiment dictionary as a convenient option. Technically, it contains implementations of three different modes of opinion tuple generation: one hybrid based on dependency parsing and CRF, the second based on shallow parsing and the third on deep learning, namely GRU neural network. The paper also contains a description of related language resources: two annotated treebanks and one set of tweets.
Speciation of metals in different oxidation states by capillary electrophoresis using pre-capillary complexation with complexones

Ethylenediaminetetraacetic (EDTA), cyclohexane-1,2-diaminetetraacetic (CDTA) and diethylenetriaminepentaacetic (DTPA) acids were investigated and compared as complexing agents for the speciation of chromium(VI/III), vanadium(V/IV) and iron(III/II) ions by capillary electrophoresis. The chromium(III) was selectively chelated with DTPA in order to impart a negative charge and similar mobility to both the chromium(III) and chromium(VI) species. The best complexing agent for the determination of vanadium species was found to be EDTA. The addition of an excess of EDTA, CDTA or DTPA to the solution containing both iron species causes the rapid and complete oxidation of iron(II) into iron(III) by ambient oxygen. Therefore for the simultaneous determination of both iron species two different complexing agents were used: o-phenanthroline for Fe2+ and CDTA for Fe3+. Detection was carried out by direct UV absorption depending on the properties of the formed complexes. For all species studied the calibration graphs were linear over at least two orders of magnitude of concentration. The detection limits were in the range from 1 × 10–6 mol l–1 for FeII to 83 10–6 mol l–1 for CrVI. Application of the method to the speciation of metal ions in real samples is also demonstrated.
Steady-state mean-square analysis of the deficient-length NLMS algorithm with reusing coefficient vector for white input

In many practical situations, the length of the system to be identified is extremely large and unknown so that the adaptive filter usually works in an under-modeling scenario, i.e., the length of the adaptive filter is less than that of the unknown system. Under this realistic case, we analyze the steady-state mean-square-deviation performance of the normalized least mean square with reusing coefficient-vector (NLMS-RC) algorithm for white input. Simulation results support the accuracy of our theoretical results.
Crystal structure of adenosine kinase from Toxoplasma gondii at 1.8 Å resolution

Human infection with Toxoplasma gondii is an important cause of morbidity and mortality. Protozoan parasites such as T. gondii are incapable of de novo purine biosynthesis and must acquire purines from their host, so the purine salvage pathway offers a number of potential targets for antiparasitic chemotherapy. In T. gondii tachyzoites, adenosine is the predominantly salvaged purine nucleoside, and thus adenosine kinase is a key enzyme in the purine salvage pathway of this parasite. The structure of T. gondii adenosine kinase was solved using molecular replacement and refined by simulated annealing at 1.8 Å resolution to an R‐factor of 0.214. The overall structure and the active site geometry are similar to human adenosine kinase, although there are significant differences. The T. gondii adenosine kinase has several unique features compared to the human sequence, including a five‐residue deletion in one of the four linking segments between the two domains, which is probably responsible for a major change in the orientation of the two domains with respect to each other. These structural differences suggest the possibility of developing specific inhibitors of the parasitic enzyme.
Cadaveric Analysis of the Distal Tibiofibular Syndesmosis

Background: Unstable ankle fractures with syndesmotic injuries commonly occur and can result in significant morbidity. Although the need for an anatomic reduction is clear, there is still debate surrounding the optimal operative treatment. Recent literature shows an increasing interest in anatomic ligament repair or reconstruction in the acute and chronic syndesmosis injury. Despite this trend, there is insufficient literature detailing anatomy of the distal tibiofibular syndesmosis. In the literature that does exist, there is controversy regarding the ligamentous anatomy of the syndesmosis. None of the current literature describes an anatomic constant that may be used as an intraoperative reference for anatomic ligament reconstructions. Methods: Ten sets of tibia and fibula free of all soft tissue were used to analyze osseous structures. Another 10 nonpaired, fresh-frozen specimens were used to study the distal tibiofibular syndesmosis. These were measured using a 3-dimensional tracking system. Measurement of each ligament width at origin and insertion, length, and distance from the tibial articular cartilage was performed. Results: The superior and inferior insertions of the anterior inferior tibiofibular ligament measured 22.7 mm and 3.4 mm proximal to the distal articular cartilage of the tibia, respectively. The superior insertion of the posterior inferior tibiofibular ligament measured 15.2 mm proximal to the articular cartilage. The superior and inferior insertions of the interosseous ligament measured 31.8 mm and 9.2 mm proximal to the distal articular cartilage, respectively. The inferior transverse ligament was a prominent identifiable structure in 70% of specimens. Conclusions: The superior margin of the distal articular cartilage could serve as a consistent anatomic landmark for reconstruction. The inferior transverse ligament is an identifiable structure in 70% of the specimens studied. Clinical Relevance: This article clarifies the anatomy and provides measurements from an anatomic constant that can guide reconstruction and intraoperative evaluation of the syndesmosis.
Electronically and Linearly Tunable Voltage-to-Current Converter

This paper describes the realization of the voltage-to-current converter (V/I) with electronically and linearly current tunable. The developed element is realized based on the use of transconductance cells (Gms) as core circuits. The advantage of this element is that its transconductance gain can be tuned electronically and linearly by adjusting external DC bias currents. The circuit is designed and analyzed in 0.35-m TSMC CMOS technology. Simulation results for the circuit with 1.25-V supply voltages show that it consumes only 0.43 mw quiescent power with 90 MHz bandwidth. The performance of the proposed circuit is discussed and confirmed through PSPICE simulation results. To display the performace of the proposed circuit, an application on the realization of the current multiplier circuit is also included and discussed.
University Students' Learning Approaches in Three Cultures: An Investigation of Biggs's 3P Model

Abstract The relationship of various learning approaches to students' academic achievement, abilities, and other characteristics was examined in a sample of university students in Hong Kong, mainland China, and the United States. The theoretical framework for this project was J. B. Biggs's (1987) theory of student learning approaches. The participants completed the Study Process Questionnaire (based on Biggs's theory) and provided a variety of demographic information. The participants' achievement scores and self-rated scores on analytical, creative, and practical abilities were also obtained. Results indicated that scores on certain subscales of the Study Process Questionnaire statistically predicted participants' achievement beyond their self-rated abilities. In addition, certain learning approaches were significantly related to the participants' ages, gender, parents' education levels, and their travel and work experiences. Implications of these findings are discussed as they relate to teaching and learning.
Corticomotoneuronal synapses in the monkey: Light microscopic localization upon motoneurons of intrinsic muscles of the hand

Some corticospinal neurons give rise to axons which terminate directly upon motoneurons, thereby establishing corticomotoneuronal connections. The location of corticomotoneuronal synapses upon motoneurons innervating intrinsic muscles of the hand in the monkey was demonstrated by the use of intra‐axonal and intracellular horseradish peroxidase (HRP). After a number of corticospinal axons originating from the “hand” area of the precentral gyrus had been injected with HRP in the lateral funiculus at C7‐C8, a number of nearby identified intrinsic hand muscle motoneurons were also injected. Connections between corticomotoneuronal fibres and motoneurons were reconstructed from longitudinal parasagittal sections treated by the cobalt‐enhanced diaminobenzidine method.
A baculovirus-conjugated mimotope vaccine targeting Mycobacterium tuberculosis lipoarabinomannan

Mycobacterium tuberculosis, the causative agent of tuberculosis, is a major cause of morbidity and mortality worldwide. However, an effective vaccine for M. tuberculosis is lacking. We panned a phage display library using monoclonal antibodies against M. tuberculosis liporabinomannan (LAM), an important component of the M. tuberculosis cell wall, and identified two peptide sequences, HSFKWLDSPRLR or SGVYKVAYDWQH, with high antibody affinity after multiple rounds of panning. Only the HSFKWLDSPRLR peptide induced an anti-LAM response when conjugated to either keyhole limpet hemocyanin (KLH) or to the baculovirus Autographa californica multicapsid nucleopolyherovirus (AcMNPV) when introduced into mice by injection or via intranasal inoculation, respectively. Vaccination with AcMNPV conjugated HSFKWLDSPRLR peptide delayed mortality in a mouse model of tuberculosis. Thus, we report a proof of principle M. tuberculosis vaccination strategy combining an anti-LAM mimotope with a baculovirus delivery system.
Intermuscular coordination during pendulum rebound exercises

In this study, we assessed coordination during pendulum rebound jumps. To gain insight into the movement coordination strategy, nine experienced male volleyball players performed maximal rebound jumps in a pendulum swing device using three different seat arrangements (90± x00B0;, 135± x00B0; and 180± x00B0;). Two-dimensional filming was performed in the right sagittal plane (200Hz) synchronized with a force platform fitted to the wall (1000Hz). The surface electromyograms of five muscles were recorded (200Hz), in conjunction with kinematic and kinetic assessment. During the countermovement phase, the impact forces were attenuated by eccentric contractions of most muscles, which helped to reduce the energy input into the system. The wall reaction forces, net moments and joint power profiles were comparable between conditions. The small differences found between the extreme seat arrangements were attributed to differences in muscle length and the position of the feet. The strategy used during landing was similar to that observed in unconstrained vertical and drop jumps, where the neuromuscular system attenuates the impact forces. During the push-offphase, most muscles were found to contribute to positive work generation, except the semitendinosus, which was stretching throughout the propulsive phase. Despite not being able to exert a large influence over the trunk segment, this muscle was deemed to play an important role in regulating and synchronizing the onset of knee extension, enabling hip extension to occur before extension in the other more distal joints. Our findings show that the neuromuscular system is able to produce consistent movement coordination across experimental conditions and in accordance with the specific task demands and constraints imposed in the movement structure.
Minimally Invasive Measurement of Cardiac Output during Surgery and Critical Care: A Meta-analysis of Accuracy and Precision

When assessing the accuracy and precision of a new technique for cardiac output measurement, the commonly quoted criterion for acceptability of agreement with a reference standard is that the percentage error (95% limits of agreement/mean cardiac output) should be 30% or less. We reviewed published data on four different minimally invasive methods adapted for use during surgery and critical care: pulse contour techniques, esophageal Doppler, partial carbon dioxide rebreathing, and transthoracic bioimpedance, to assess their bias, precision, and percentage error in agreement with thermodilution. An English language literature search identified published papers since 2000 which examined the agreement in adult patients between bolus thermodilution and each method. For each method a meta-analysis was done using studies in which the first measurement point for each patient could be identified, to obtain a pooled mean bias, precision, and percentage error weighted according to the number of measurements in each study. Forty-seven studies were identified as suitable for inclusion: N studies, n measurements: mean weighted bias [precision, percentage error] were: pulse contour N = 24, n = 714: –0.00 l/min [1.22 l/min, 41.3%]; esophageal Doppler N = 2, n = 57: –0.77 l/min [1.07 l/min, 42.1%]; partial carbon dioxide rebreathing N = 8, n = 167: –0.05 l/min [1.12 l/min, 44.5%]; transthoracic bioimpedance N = 13, n = 435: –0.10 l/min [1.14 l/min, 42.9%]. None of the four methods has achieved agreement with bolus thermodilution which meets the expected 30% limits. The relevance in clinical practice of these arbitrary limits should be reassessed.
Construct Validity of the Repeatable Battery of Neuropsychological Status (RBANS) with Acquired Brain Injury Patients

The construct validity of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) indices and subtests in comparison to established neuropsychological measures has yet to be investigated in post–acute adults with a moderate to severe acquired brain injury. A sample of 37 patients from an inpatient brain injury rehabilitation program were administered the RBANS followed by a neuropsychological test battery approximately two weeks later. Significant relationships were observed between most of the RBANS subtests and indices and neuropsychological tests putatively assessing similar cognitive domains. These results provide preliminary support for the construct validity of the RBANS indices and subtests when used with moderate to severe acquired brain injury patients.