Miracle-dz/UniFAR-FTUs huggingface dataset:
Benchmarking comparison of thermal and diode sensors for pulsed power measurement

A pulsed power system has been constructed to explore conditions under which accurate pulsed power measurements can be made with both a thermal sensor and a diode sensor. For the thermal sensor, pulsed power is estimated from a simple calculation based on the average power of the pulsed RF signal. For the diode sensor, gating is used to enable direct measurement of the pulsed power. As expected, the results of measurements taken with varying pulse lengths and a constant period show that the dynamic range of the thermal sensor is approximately proportional to the pulse length. The results also indicate that, while a thermal sensor can provide accurate results for many situations, the diode sensor can be used to measure with higher precision than the thermal sensor for lower duty cycles. The paper demonstrates a benchmarking procedure that can be used to explore limitations and capabilities of power sensors as well as elements such as the input RF switch used for pulsed power measurements.
A wireless sensor network for remote monitoring of bioimpedance

This paper describes the research for the design and realization of a flexible, scalable and cost-effective medical wireless measurement system for remote monitoring of changes in patient's electrical bioimedance, based on wireless sensor networks. The bioimpedance is continuously measured using a custom developed wireless sensor node and then is wirelessly transferred to a remote central monitoring station through a wireless sensor network. A user-friendly graphical user interface running on monitoring station was developed, to display the value received from the selected patient, and also the sensor node status. The proposed system may be used in many medical applications for remote monitoring of patient's psycho-physiological processes, respiration frequency, assessing hydration status and visceral fat accumulation, or other skin related diseases, within healthcare institutes or their homes, with a high degree of accuracy similar to widely used commercial systems. The described system has been developed, implemented, and tested.
Correlation between pretreatment FDG-PET biological target volume and location of T-site failure after definitive radiation therapy for head and neck cancers

Head and neck squamous cell carcinoma accounts for approximately 5% of malignancies worldwide [1]. it is predominantly a loco-regional disease, which is accessible to curative intent treatment with surgery and/or radiation therapy (rt) [2,3]. traditionally target-volume delineation in head and neck cancer (HNC) has been based on anatomic data supplied by physical examination and computed tomography (Ct) [1,4]. in recent years, positron emission tomography (PEt) using the tracer 18F-fluorodeoxyglucose (FDg) has become an important diagnostic tool for evaluation of HNC and is applied in various clinical settings including rt treatment planning in which it is used as complementary information to the conventional methods [5]. PEt/computed tomography (Ct) incorporates metabolic tumor function with anatomic localization with several potential advances [6]. studies conclude that FDg-PEt/Ct is more accurate than conventional staging in HNC [7,8] and FDg-PEt/Ct detects primary HNC with high sensitivity ( 95%) [9]. PEt-defined target volumes may be an area that warrants intensive therapy in order to improve failure rates and outcomes in HNC. two prototypical strategies have been considered in the literature: sub-volume boosting, which involves a selection of a “target within the target”, defined by image segmentation on the basis of quantitative information in the image, or dose painting by numbers, which is a voxel-level prescription that maps a range of image intensities onto a range of doses [10]. During the past years, a number of studies have found that the majority of HNC failures map to the pretreatment PEt abnormality. soto et al. [11] found that 8/9 (89%) loco-regional failures were within the pretreatment PEt-volume while La et al. [12] found 6/7 (86%) local failures within the pretreatment PEt-volume and only the one regional failure to occur outside the pretreatment PEt-volume. madani et al. [13] also reported the majority of the local relapses to occur inside the PEt-avid region or at its borders [5/9 (56%)]. these observations suggest that FDg might be a useful tracer for detecting intratumor regions of increased radiation resistance. in continuation of the findings in these studies, we hypothesize that failures of HNC arise from the PEt avid volume and possibly from the areas of the PEt volume with the strongest FDg-signal.
Prosthetic Joint Infection Diagnosed Postoperatively by Intraoperative Culture

The purpose of this study was to assess the outcome of prosthetic joint infection initially diagnosed by multiple positive intraoperative cultures after revision arthroplasty and treated by strategies that include less than 6 weeks of intravenous antimicrobial therapy. Between January 1995 and December 1999, 16 of 509 (3%) episodes of prosthetic joint infection in 16 patients initially were diagnosed by positive intraoperative cultures after revision arthroplasty. Patients were followed up for a median of 1057 days (range, 731-1969 days). The median age of the patients was 65 years, and 65% of patients had revision total hip arthroplasty. Coagulase-negative staphylococci and Propionibacterium spp were the main pathogens identified. Intravenous antimicrobial therapy was used in 81% of patients and chronic oral suppression was used in 56% of patients. Three patients received no antimicrobial therapy. The median duration of intravenous antimicrobial therapy was 28 days (range, 2-42 days). The 5-year survival free of treatment failure for the 16 episodes was 89%. These results suggest a favorable outcome of prosthetic joint infections because of low virulence pathogens initially diagnosed as positive intraoperative cultures after revision arthroplasty with a variety of medical treatment strategies, including strategies that contain less than 6 weeks intravenous antimicrobial therapy. Level of Evidence: Prognostic study, Level IV-1 (case series). See the Guidelines for Authors for a complete description of levels of evidence.
INFLUENCE OF DIFFERENT RELATIVE INTENSITIES ON POWER OUTPUT DURING THE HANG POWER CLEAN: IDENTIFICATION OF THE OPTIMAL LOAD

The influence of different relative intensities on power output was investigated in the present study in order to identify the optimal load that maximizes power output during the hang power clean. Fifteen men (age: 22.1 ± 2.0 years, height: 180.1 ± 6.3 cm, and body mass: 89.4 ± 14.7 kg) performed the hang power cleans on a forceplate at 30–90% of one repetition maximum (1RM). Peak power was maximized at 70% 1RM, which was, however, not significantly different from peak power at 50, 60, 80, and 90% 1RM. Average power also was maximized at 70% 1RM, which was not significantly different from average power at 40, 50, 60, 80, and 90% 1RM. It was concluded that (a) the relative intensity had a significant influence on power output, and (b) power output can be maximized at a submaximal load during the hang power clean.
Organ scarcity and the psychological pre-heart transplant evaluation: a simulation study using community residents.

CONTEXT Although research examining medical outcomes in heart transplantation has progressed, there are few studies examining the impact of organ scarcity and wait list demand on the transplant candidate evaluation process. OBJECTIVE To examine the influence of transplant knowledge pertaining to organ scarcity and wait list demand on simulated ratings of psychological distress provided by community residents participating in a simulated pre-heart transplant evaluation. DESIGN A randomized, controlled design. We used a vignette simulation to experimentally manipulate the effect of transplant knowledge pertaining to organ scarcity in a group of community residents with no previous knowledge or experience with the transplant selection process. PARTICIPANTS One hundred forty-three community residents visiting a department of motor vehicles office in north central Florida were recruited. Community residents were randomly assigned to 1 of 2 experimental conditions, with either mention (n=66) or no mention (n=77) of organ scarcity and wait list demand statistics in their assigned vignette. Participants then served as actors and completed measures of psychological distress as part of a mock psychological pre-heart transplant evaluation. RESULTS Participants with mention of organ scarcity reported significantly fewer symptoms of anxiety and depression compared to those with no mention of organ scarcity. This relationship remained significant even after controlling for relevant covariates, including age and simulated ratings of social desirability. CONCLUSION Transplant knowledge pertaining to organ scarcity and wait list demand may influence transplant candidates to report fewer symptoms of psychological distress. Clinical suggestions for dealing with underreporting of psychological distress are discussed.
Onion thrips colonization of onion fields bordering crop and non‐crop habitats in muck cropping systems

Onion thrips, Thrips tabaci Lindeman, colonization of onion fields may be influenced by bordering crop and non‐crop habitats. Identifying habitats adjacent to onion fields associated with high T. tabaci infestations would be valuable for improving scouting efforts and management decisions. A 3‐year study examined adult T. tabaci colonization patterns within onion fields early (June through early July) and late in the season (August) in three muck regions in New York (USA). We hypothesized that early‐season adult densities would be greater in onion fields bordering other crops (e.g. carrot, corn and potato) and non‐crops (e.g. woods) than those bordering other onion fields and that more adults would occur along onion field edges than field centres. Results indicated similar adult densities in onion fields regardless of bordering crop and non‐crop habitats in seven of nine muck region × year data sets; exceptions were more adults in onion fields bordering potato (Elba region only) and corn (Potter region only) than those bordering other onion fields. Adult densities decreased as distance into onion fields increased in only four of nine muck region × year data sets; in these cases only 38% more adults were found along field edges than field centres. Later in the season, we hypothesized that adult densities would be greater in non‐mature onion fields bordering mature onion fields, and densities would be greater along field edges than field centres. Results indicated that adult densities in non‐mature onion fields bordering mature onion fields were 54 times greater than those bordering other non‐mature onion fields, and four times more adults occurred along field edges than field centres; adult densities were similar along field edges and centres in non‐mature onion fields bordering other non‐mature onion fields. Implications for T. tabaci management in onion based on these colonization patterns are discussed.
Serum Cytokine Profile in Patients With Pancreatic Cancer

Objective Pancreatic ductal adenocarcinoma is a deadly disease because of late diagnosis and chemoresistance. We aimed to find a panel of serum cytokines representing diagnostic and predictive biomarkers for pancreatic cancer. Methods A cytokine antibody array was performed to simultaneously identify 507 cytokines in sera of patients with pancreatic cancer and healthy controls. The nonparametric Mann-Whitney U test was used to pairwise compare the controls, the pretreated patients, and the posttreated patients. Fold changes greater than or equal to 1.5 or less than or equal to 1/1.5 were considered significant. Receiver operating characteristic curves were used to assess the performance of the model. A leave-one-out cross-validation was used for estimating prediction error. Results Comparing the sera of pretreated patients against the control samples, the cytokines fibroblast growth factor 10 (FGF-10/keratinocyte growth factor-2 (KGF-2), chemokine (C-X-C motif) ligand 11 interferon inducible T cell alpha chemokine (I-TAC)/chemokine [C-X-C motif] ligand 11 (CXCL11), oncostatin M (OSM), osteoactivin/glycoprotein nonmetastatic melanoma protein B, and stem cell factor (SCF) were found significantly overexpressed. Besides, the cytokines CD30 ligand/tumor necrosis factor superfamily, member 8 (TNFSF8), chordin-like 2, FGF-10/KGF-2, growth/differentiation factor 15, I-TAC/CXCL11, OSM, and SCF were differentially expressed in response to treatment. Conclusions We propose a role for FGF-10/KGF-2, I-TAC/CXCL11, OSM, osteoactivin/glycoprotein nonmetastatic melanoma protein B, and SCF as novel diagnostic biomarkers. CD30 ligand/TNFSF8, chordin-like 2, FGF-10/KGF-2, growth/differentiation factor 15, I-TAC/CXCL11, OSM, and SCF might represent as predictive biomarkers for gemcitabine and erlotinib response of patients with pancreatic cancer.
A wide range speed control method of compact high speed BLDCM using PLL approach

High speed compact BLDCM (Brushless DC Motor) is much used for a robot and medical application because of the high torque and high speed characteristics. This paper presents a simple PLL based speed control scheme for a high speed compact BLDCM. Without any complex calculation of actual speed and design of speed controller, a simple phase difference between reference and actual hall sensor signal is used for calculation current reference which is proportional to output torque of BLDCM. And the current reference acts for keeping the phase delay of two signals. So, the actual speed can keep the reference speed. Meanwhile, additional DC-link voltage controller, which adjusts link voltage of VSI inverter according to reference speed, can reduce current ripple in a wide speed range. The proposed control scheme is very simple and does not use any complex calculation. The proposed control scheme is verified by the experimental results of 40,000 rpm compact BLDCM.
Cooperative Balanced Space-Time Block Codes for Relay Networks

In this paper, a novel coding method for cooperative relay networks is proposed, which guarantees full diversity for any number of mobile relays with minimal delay, provided that few bits of feedback from the destination to the source and relays are available. As in the case of orthogonal space-time block codes, all transmitted symbols are separately decoded both in the relays and the destination. So, decoding complexity grows linearly. Many of the proposed solutions in the literature are distributed space-time codes which are designed limited number of relays. The proposed scheme has better signal-to-noise ratio improvement with respect to relay selection scheme for N relays present in the wireless system. Moreover, it requires minimal amount of delay. Lastly, the new method satisfies power consumption fairness among relay terminals and requires no knowledge of topology information.
Review-Aware Answer Prediction for Product-Related Questions Incorporating Aspects

In E-commerce sites, there are platforms for users to pose product-related questions and experienced customers may provide answers voluntarily. Among the questions asked by users, a large proportion of them are yes-no questions reflecting that users wish to know whether or not the product can satisfy a certain criterion or meet a certain expectation. Both Question Answering (QA) approaches and Community Question Answering methods are not suitable for answer prediction for new questions in this setting. The reasons are that questions are product-associated and many of them are concerned about user experiences and subjective opinions. In addition to existing question-answer pairs, user written reviews can provide useful clues for answer prediction. In this paper, we propose a new framework that can tackle the task of review-aware answer prediction for product-related questions. The aspect analytics model in this framework learns latent aspects as well as aspect-specific embeddings of reviews via a 3-order Autoencoder. One advantage of this learned model is that it can generate aspect-specific representations for new questions. The predictive answer model in our framework, learned jointly from existing questions, answers, and reviews, is able to predict the answers for new yes-no questions taking into consideration of aspects. Besides, our framework can provide supportive reviews grouped by relevant aspects serving as information for explainable answers. Experiment results on 15 different product categories from a large-scale benchmark E-commence QA dataset demonstrate the effectiveness of our framework.
Performance assessment of active frequency drifting islanding detection methods

Islanding detection is a mandatory feature for grid-connected inverters. The effectiveness of passive islanding detection methods (IDMs) is usually demonstrated by means of nondetection zones (NDZs) represented in a power mismatch space (/spl Delta/P versus /spl Delta/Q). Active frequency drifting IDMs have been shown to provide improved performance but their theoretical NDZ cannot be described in the /spl Delta/P versus /spl Delta/Q space for a general RLC load. This paper shows that a load parameter space based on the values of the quality factor and resonant frequency of the local load (Q/sub f/ versus f/sub 0/) can be used in these cases. It employs a single curve to represent the NDZ of frequency drifting IDMs for any RLC loads. Equations that represent NDZs of three common active IDMs in the Q/sub f/ versus f/sub 0/ load parameter space are derived and it is shown that the slip mode frequency shift and the Sandia frequency shift IDMs can be designed to guarantee islanding detection for equivalent RLC loads with a quality factor smaller than a design value. The accuracy of the NDZs is verified with simulation and experimental results.
Stress‐Induced Enhancement of Cell‐Mediated Immunity a

Abstract: We have demonstrated that acute stress induces a large‐magnitude, rapid, and reversible redistribution of leukocytes from the blood to other compartments within the body. These changes in leukocyte distribution are mediated by adrenal stress hormones. Because the skin is one of the target organs of a stress‐induced redistribution of leukocyes, we hypothesized that such a leukocyte redistribution could be one of the factors by which acute stress may enhance cutaneous immune function. This hypothesis was tested by examining the effects of acute stress on cutaneous delayed‐type hypersensitivity (DTH). DTH reactions are antigen‐specific, cell‐mediated immune responses that, depending on the antigen involved, mediate beneficial (resistance to viruses, bacteria, and fungi) or harmful (allergic dermatitis, autoimmunity) aspects of immune function. DTH was induced by challenging the pinnae of previously sensitized rats with 2,4‐dinitro‐1‐fluorobenzene (DNFB). Experiments showed that acute stress administered immediately before the introduction of an antigenic challenge significantly enhances a cutaneous DTH response. In contrast, chronic stress suppresses cutaneous DTH. These results demonstrate a bidirectional relationship between stress and immune function, such that acute stress enhances, while chronic stress suppresses, an important class of immune responses in vivo. They also suggest that stress‐induced alterations in lymphocyte redeployment within the body may play an important role in mediating these bidirectional effects of stress on cell‐mediated immunity.
cbb3-Type Cytochrome c Oxidases, Aerobic Respiratory Enzymes, Impact the Anaerobic Life of Pseudomonas aeruginosa PAO1

ABSTRACT For bacteria, many studies have focused on the role of respiratory enzymes in energy conservation; however, their effect on cell behavior is poorly understood. Pseudomonas aeruginosa can perform both aerobic respiration and denitrification. Previous studies demonstrated that cbb3-type cytochrome c oxidases that support aerobic respiration are more highly expressed in P. aeruginosa under anoxic conditions than are other aerobic respiratory enzymes. However, little is known about their role under such conditions. In this study, it was shown that cbb3 oxidases of P. aeruginosa PAO1 alter anaerobic growth, the denitrification process, and cell morphology under anoxic conditions. Furthermore, biofilm formation was promoted by the cbb3 oxidases under anoxic conditions. cbb3 oxidases led to the accumulation of nitric oxide (NO), which is produced during denitrification. Cell elongation induced by NO accumulation was reported to be required for robust biofilm formation of P. aeruginosa PAO1 under anoxic conditions. Our data show that cbb3 oxidases promote cell elongation by inducing NO accumulation during the denitrification process, which further leads to robust biofilms. Our findings show that cbb3 oxidases, which have been well studied as aerobic respiratory enzymes, are also involved in denitrification and influence the lifestyle of P. aeruginosa PAO1 under anoxic conditions.
Objective Markers of Condom Failure

Background: Studies of condom efficacy rely on self‐reported behavior. Objective markers of exposure to semen may provide a more valid assessment of condom failure and failure to use condoms. Goals of this Study: To compare three semen biomarkers: acid phosphatase (AP) activity, prostate specific antigen (PSA), and the human seminal plasma antigen (MHS‐5). Study Design: Twenty women were intravaginally inoculated with six measured, increasingly larger amounts of their partners' semen. Vaginal fluid was collected by the participant using swabs and tested. Results: Background levels of PSA were low (0.00‐1.25 ng/ml), background levels of AP were variable (0‐350 U/l), and all preinoculation samples were negative for MHS‐5. All postinoculation samples were positive for PSA, 64 of 117 (55%) for AP, and 14 of 120 (12%) for MHS‐5. Conclusion: The PSA immunoassay was the best semen biomarker under these sampling and testing conditions.
Comparison of the self‐expanding Radius stent and the balloon‐expandable Multilink stent for elective treatment of coronary stenoses: A serial analysis by intravascular ultrasound

We compared the outcome of the self‐expanding Radius stent and the balloon‐expandable Multilink stent serially by angiography and intravascular ultrasound. Successful stent deployment was achieved in 66 lesions of 56 stable angina patients (34 lesions with Radius stents and 32 lesions with Multilink stents). At follow‐up, there were no significant differences in minimal lumen diameter or percent diameter stenosis between the groups, nor in restenosis rates, although the Radius stent group rate was slightly lower (23.5% vs. 31.3%). In the Radius stent group, stent cross‐sectional area (CSA) increased gradually after implantation until the 6‐month follow‐up (8.37 ± 1.83 to 10.16 ± 2.59 mm2; n = 15), giving a larger CSA (P = 0.03) than the Multilink stent group, which decreased (9.00 ± 2.05 to 8.27 ± 2.15 mm2; n = 17). The lumen CSA was also slightly larger (6.82 ± 3.06 vs. 5.84 ± 1.85 mm2; P = 0.29) in the Radius stent group. These findings indicated that the Radius stent enlarged progressively after implantation, which might be useful for prevention of restenosis. Cathet Cardiovasc Intervent 2002;56:40–45. © 2002 Wiley‐Liss, Inc.