Miracle-dz/UniFAR-FTUs huggingface dataset:
Radially excited rotating black holes in Einstein-Maxwell-Chern-Simons theory

Rotating black holes in Einstein-Maxwell-Chern-Simons theory possess remarkable features when the Chern-Simons coupling constant reaches a critical value. Representing single asymptotically flat black holes with horizons of spherical topology, they exhibit nonuniqueness. In particular, there even exist extremal and nonextremal black holes with the same sets of global charges. Both extremal and nonextremal black holes form sequences of radially excited solutions that can be labeled by the node number of the magnetic gauge potential function. The extremal Reissner-Nordstrm solution is no longer always located on the boundary of the domain of existence of these black holes, nor does it remain the single extremal solution with vanishing angular momentum. Instead a whole sequence of rotating extremal J = 0 solutions is present, whose mass converges towards the mass of the Reissner-Nordstrm solution. These radially excited extremal solutions are all associated with the same near horizon solution. Moreover, there are near horizon solutions that are not realized as global solutions.
Effects of Various Wavelet Transforms in Dynamic Analysis of Structures

Time history dynamic analysis of structures is considered as an exact method while being computationally intensive. Filtration of earthquake strong ground motions applying wavelet transform is an approach towards reduction of computational efforts, particularly in optimization of structures against seismic effects. Wavelet transforms are categorized into continuum and discrete transforms. Since earthquake strong ground motion is a discrete function, the discrete wavelet transform is applied in the present paper. Wavelet transform reduces analysis time by filtration of non-effective frequencies of strong ground motion. Filtration process may be repeated several times while the approximation induces more errors. In this paper, strong ground motion of earthquake has been filtered once applying each wavelet. Strong ground motion of Northridge earthquake is filtered applying various wavelets and dynamic analysis of sampled shear and moment frames is implemented. The error, regarding application of each wavelet, is computed based on comparison of dynamic response of sampled structures with exact responses. Exact responses are computed by dynamic analysis of structures applying non-filtered strong ground motion.
Discrimination between complete and incomplete chromosome exchanges in X-irradiated human lymphocytes using FISH with pan-centromeric and chromosome specific DNA probes in combination with telomeric PNA probe.

PURPOSE To discriminate precisely between radiation-induced complete and incomplete chromosome exchanges using chromosome painting together with the detection of the centromeres and telomeres in one FISH assay. MATERIALS AND METHODS Human lymphocytes were exposed in vitro to X-rays at a dose of 4 Gy. Chromosome aberrations were analysed using the FISH technique in combination with a whole chromosome-specific DNA probe for chromosome 8, human pan-centromeric DNA and telomeric PNA probes. RESULTS The combined FISH assay has improved the resolution of detecting chromosomal exchanges in human lymphocytes. Results indicate that the frequency of observed incomplete exchange patterns was 21% when telomeric signals were ignored during the analysis. When the telomeric signals were included in the analysis a large proportion of apparently incomplete exchange patterns appeared complete and should be re-classified. The percentage of true incomplete exchanges was found to be less than 5%. CONCLUSION The combination of chromosome painting and the detection of centromeres and telomeres enable unequivocal discrimination between incomplete and complete exchanges. The fraction of true incomplete exchanges observed in X-irradiated human lymphocytes was found to be low in comparison with previous reports in the literature.
Descriptive epidemiology of youth pedometer-determined physical activity: CANPLAY.

PURPOSE Objective measurement with body worn instrumentation is a preferred and increasingly common way to gather information about young people's physical activity. Measured samples have been typically small and recruited through schools. The purpose of this article was to present the descriptive epidemiology of children and youth pedometer-determined physical activity on the basis of a large national sample. METHODS Children and youth (19,789) were recruited through random digit dialing. Participants were asked to wear the pedometer for seven consecutive days and to log daily steps. Of the 58% of participants who returned pedometer data, 95% wore the pedometer for at least 5 d. Daily step counts below 1000 or above 30,000 steps were truncated accordingly, and all values were included in the descriptive analysis. RESULTS Boys and girls aged 5-19 yr took 12,259 and 10,906 steps per day, respectively. Daily steps were higher among boys than girls and declined by age group in a pattern consistent with that predicted by other smaller samples internationally. Weekday steps per day were generally higher than weekend day steps per day and varied by season. CONCLUSIONS This study demonstrates the viability of using relatively inexpensive pedometers and methods for the surveillance of young people's physical activity. The resulting descriptive data provide key information regarding the population distribution of pedometer-determined physical activity that may be useful for identifying target groups for population strategies and other interventions.
Learning similarity preserving representations with neural similarity and context encoders

We introduce similarity encoders (SimEc), which learn similarity preserving representations by using a feed-forward neural network to map data into an embedding space where the original similarities can be approximated linearly. The model can easily compute representations for novel (out-of-sample) data points, even if the original pairwise similarities of the training set were generated by an unknown process such as human ratings. This is demonstrated by creating embeddings of both image and text data. Furthermore, the idea behind similarity encoders gives an intuitive explanation of the optimization strategy used by the continuous bag-of-words (CBOW) word2vec model trained with negative sampling. Based on this insight, we define context encoders (ConEc), which can improve the word embeddings created with word2vec by using the local context of words to create out-of-vocabulary embeddings and representations for words with multiple meanings. The benefit of this is illustrated by using these word embeddings as features in the CoNLL 2003 named entity recognition task.
Comorbid Medical Conditions in Vascular Dementia: A Matched Case–Control Study

Abstract The objective of the study was to compare the presence of comorbid medical conditions between patients with a vascular dementia (VaD) and a control group, from the Integrated Healthcare Information Services (IHCIS) database. VaD was defined by the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) codes 290.40, 290.4, 290.41, 290.42, and, 290.43. An individual matching method was used to select the controls, which were matched to cases on a 15:1 ratio by age, gender, type of health plan, and pharmacy benefits. Alzheimer's disease, any other dementia or cognitive deficits associated were considered exclusion criteria. Among the IHCIS patients 60 years of age or older and full year of eligibility during 2010, there were 898 VaD patients, from which 63.6% were women. Concurrent presence of cerebrovascular disease, atherosclerosis, heart failure, and atrial fibrillation were found at 12.6, 4.6, 2.8, and 1.7 times higher in VaD patients, respectively. Compared to controls, VaD patients had more septicemia, injuries, lung diseases including chronic obstructive pulmonary disease, and urinary diseases (all with df = 897,1; p < 0.0001). The present study confirms that these four medical comorbidities are frequent complications of VaD and physicians should be alert to the presence of them in patients with VaD.
Extended versus Ensemble Kalman Filtering for Land Data Assimilation

Abstract The performance of the extended Kalman filter (EKF) and the ensemble Kalman filter (EnKF) are assessed for soil moisture estimation. In a twin experiment for the southeastern United States synthetic observations of near-surface soil moisture are assimilated once every 3 days, neglecting horizontal error correlations and treating catchments independently. Both filters provide satisfactory estimates of soil moisture. The average actual estimation error in volumetric moisture content of the soil profile is 2.2% for the EKF and 2.2% (or 2.1%; or 2.0%) for the EnKF with 4 (or 10; or 500) ensemble members. Expected error covariances of both filters generally differ from actual estimation errors. Nevertheless, nonlinearities in soil processes are treated adequately by both filters. In the application presented herein the EKF and the EnKF with four ensemble members are equally accurate at comparable computational cost. Because of its flexibility and its performance in this study, the EnKF is a promising .
Constraint preconditioning for nonsymmetric indefinite linear systems

This paper introduces and presents theoretical analyses of constraint preconditioning via a Schilders'‐like factorization for nonsymmetric saddle‐point problems. We extend the Schilders' factorization of a constraint preconditioner to a nonsymmetric matrix by using a different factorization. The eigenvalue and eigenvector distributions of the preconditioned matrix are determined. The choices of the parameter matrices in the extended Schilders' factorization and the implementation of the preconditioning step are discussed. An upper bound on the degree of the minimum polynomial for the preconditioned matrix and the dimension of the corresponding Krylov subspace are determined, as well as the convergence behavior of a Krylov subspace method such as GMRES. Numerical experiments are presented. Copyright © 2009 John Wiley & Sons, Ltd.
Feedback control for robotic manipulator with an uncertain Jacobian matrix

In most applications of robots, a desired path for the end-effector is usually specified in task space such as Cartesian space. One way to move the robot along this path is to solve the inverse kinematics problem to generate the desired angles in joint space. However, it is a very time consuming task to solve the inverse kinematics problem. Furthermore, in the presence of uncertainty in kinematics, it is impossible to derive the desired joint angle from the desired end-effector path and the Jacobian matrix of the mapping from joint space to task space. In this article, a feedback control law using an uncertain Jacobian matrix is proposed for setpoint control of robots. Sufficient conditions for the bound of the estimated Jacobian matrix and stability conditions for the feedback gains are presented to guarantee the stability and passivity of the robots. A gravity regressor with an uncertain Jacobian matrix is also proposed for gravitational force compensation when the gravitational force is uncertain. Simulation results are presented to illustrate the performance of the proposed controllers. ©1999 John Wiley & Sons, Inc.
Real time feasibility and performance of moving horizon estimation for Li-ion batteries based on first principles electrochemical models

A battery management system monitors and controls the battery in order to have the highest performance possible while maintaining a safe operation. This requires real time monitoring of internal states, such as state of charge, state of health or solid and electrolyte potentials. These states cannot be directly measured, thus they must be estimated. For use of estimation schemes in battery management systems, computational time, as well as reliable operation, play a fundamental role. For these reasons mainly Kalman Filters have been applied to equivalent circuit models or extremely simplified electrochemical models, not suitable during stress conditions, such as high currents, which are common in some applications, as they are often present in electric and hybrid electric vehicles. Considering an accurate model as well as constraints can lead to better estimation. To this end, we use a real-time iteration based moving horizon estimation scheme utilizing a first principles model which exploits projected solution onto a reduced Hilbert space. The approach is real-time feasible on battery management systems, allows to directly consider constraints on the states and achieves good performance over a wide range of operations, including high currents. The approach allows to estimate lithium ions concentration and potential profiles in electrolyte and solid as well as temperature. Estimating the concentration profile permits also to track the total moles of lithium ions; an important parameter influenced by aging mechanism. Finally we point out how one can estimate the reaction overpotential of side reactions responsible to shorten the battery life.
Cadmium-induced structural disturbances in Pisum sativum leaves are alleviated by nitric oxide

In the present study, the protective effect of nitric oxide (NO) against Cd-induced structural disturbances in pea (Pisum sativum) leaves was investigated. Cadmium treatment resulted in a decreased leaf size and thickness of the lamina, reduced intercellular spaces in the mesophyll, small pavement cells, and a high density of stomata. These abnormalities were partially or fully reversed by a simultaneous application of Cd and the NO donor, sodium nitroprusside (SNP). The concentration of 1000 µM SNP was very effective in counteracting the adverse effects of Cd and resulted in leaf structural parameters close to those of the control leaves. These findings suggest that exogenous NO can effectively facilitate structural adjustments in pea leaves under Cd stress, which could improve stress tolerance at the whole-plant level.
Mycobacterium abscessus pseudoinfection traced to an automated endoscope washer: utility of epidemiologic and laboratory investigation.

After 15 patients had positive cultures for Mycobacterium abscessus without evidence of infection (i.e., pseudoinfection) following endoscopy, retrospective cohort studies of patients undergoing endoscopy and microbiologic sampling of the environment were done to examine potential nosocomial transmission and to identify the source and risk factors for M. abscessus pseudoinfection. In the epidemic period, M. abscessus-positive cultures were significantly more likely to be obtained during bronchoscopy than gastroendoscopy (16/149 vs. 1/860, P < .001) and during procedures using bronchoscopes disinfected in an automated washer rather than by other methods (16/54 vs. 0/95, P < .001). M. abscessus was recovered from the automated washer, the inlet water feeding the washer, and a flexible bronchoscope. Environmental and case-patient isolates had identical large restriction fragment (LRF) patterns of genomic DNA separated by pulsed-field gel electrophoresis. Molecular typing using LRF analysis supported the epidemiologic results and demonstrate the utility of combined epidemiologic and laboratory investigations in nosocomial outbreaks of nontuberculous mycobacteria.
Scheduling in a Fuzzy Environment : A Fuzzy Genetic Algorithm Approach

In the presence of imprecise management targets, staff preferences, and patients’ expectations, the healthcare staff scheduling problem becomes complicated. The goals, preferences, and client expectations, being humanistic, are often imprecise and always evolving over time. We present a fuzzy genetic algorithm (FGA) approach for addressing healthcare staff scheduling problems in fuzzy environments. The proposed FGA-based approach can handle multiple conflicting objectives and constraints. To improve the algorithm, fuzzy set theory is used for fitness evaluations of alternative candidate schedules by modeling the fitness of each alternative solution using fuzzy membership functions. Furthermore, the algorithm is designed to incorporate the decision maker’s choices and preferences, in addition to staff preferences. Rather than prescribing a sing solution to the decision maker, the approach provides a population of alternative solutions from which the decision maker can choose the most satisfactory solution. The FGA-based approach is potential platform upon which useful decision support tools can be developing for solving healthcare staff scheduling problems in a fuzzy environment characterized with multiple conflicting objectives and preference constraints.
A new segmented-stator linear vernier permanent magnet machine for direct-drive applications

In this paper, a segmented-stator linear vernier permanent magnet machine (LVPMM) is proposed for syringe pump systems. The proposed machine adopts segmented-stator linear vernier machine configuration. The mover is sandwiched between the segmented stators. By using the sinusoidal shaped magnets, the harmonics of the back electromotive force is reduced. By selecting an appropriate slot-pole combination and fine tuning the relative position of the two stators, the cogging force due to the slot-pole interaction is mitigated. In addition, by optimizing the stator length, the cogging force due to the end effect is suppressed. With these design techniques, the thrust ripple for the proposed machine can be suppressed. By using the finite element method, the analysis confirms the validity of the design and optimization approach.
The role of Australian primary health care in the prevention of chronic disease

Primary health care has an important role in assessing, preventing and managing smoking, hazardous drinking, poor diet and physical inactivity. The 5As (ask, assess, advise/agree, assist and arrange) provide a framework for analysing the steps involved in preventive care and in defining the optimal roles of providers and services at the practice level. There is evidence for the effectiveness of interventions provided by practice nurses, allied health providers and group programs. However these providers are currently under-utilised in preventive care and more effective teamwork within and between primary health care services is needed. Information systems including e-health records, decision support and web tools and resources facilitate a systematic approach to preventive care. Despite evidence of how to prevent chronic disease in primary health care, there remain gaps in preventive care in practice and inequities in access to preventive care by disadvantaged population groups. The role of Medicare Locals is to facilitate practice change, as well as to develop partnerships with state health services, local government and non-government organisations to coordinate and broker new preventive services and programs and to integrate clinical and population health approaches to prevention. Reforms to funding, workforce, patient enrolment, and primary care organisation and structure remain important to the implementation and maintenance of preventive activities in primary health care.
Expression of glucose transporters in human pancreatic tumors compared with increased FDG accumulation in PET study.

UNLABELLED Although overexpression of GLUT-1 glucose transporter has already been reported in human cancers, the mechanism of glucose entry into pancreatic cancers remains unknown. To evaluate the relationship between GLUT glucose transporters and FDG uptake, FDG-PET was performed in 34 preoperative patients (mean age, 60.9 yr) with suspected pancreatic tumors, including 28 malignant and 6 benign tumors. METHODS FDG uptake at 50 min after injection of 185 MBq of [18F]FDG with >5 hr of fasting was semiquantitatively analyzed as standardized uptake values (SUVs). The GLUT expression was studied by immunohistochemistry of paraffin sections from these tumors after operation using anti-GLUT-1, -2, -3, -4 and -5 antibodies to obtain immunohistochemical grading ("strong," "weak" and "negative") by three experienced physicians. RESULTS Of 26 malignant tumors proved by histological examination, 23 (88%) tumors were positive for the expression of GLUT-1 glucose transporter, and 17 (61%) showed strong expression. On the other hand, 13 (46%), 0 (0%), 9 (36%) and 13 (46%) malignant tumors were positive for the expression of GLUT-2, -3, -4 and -5 glucose transporters, respectively. Three of six benign tumors showed strong GLUT-1 expression. Concerning GLUT-2, -3, -4 and -5, only one benign tumor showed positive GLUT-5 expression. Thus, GLUT-1 showed relatively high sensitivity but low specificity (50%) for detecting malignant tumors, whereas GLUT-2, -3, -4 and -5 had lower sensitivities but higher specificities. Correlations between SUVs and grading of GLUT immunoreactivity were significant in GLUT-1 (strong, 4.49 +/- 2.95; weak, 3.42 +/- 1.21; negative, 2.52 +/- 0.84) (p < 0.05) but not in the remaining four GLUT transporters. CONCLUSION These data indicate that GLUT-1 has a significant role in the malignant glucose metabolism and may contribute to the increased uptake of FDG in PET imaging in patients with pancreatic tumor.
DeepEye: Creating Good Data Visualizations by Keyword Search

Creating good visualizations for ordinary users is hard, even with the help of the state-of-the-art interactive data visualization tools, such as Tableau, Qlik, because they require the users to understand the data and visualizations very well. DeepEye is an innovative visualization system that aims at helping everyone create good visualizations simply like a Google search. Given a dataset and a keyword query, DeepEye understands the query intent, generates and ranks good visualizations. The user can pick the one she likes and do a further faceted navigation to easily navigate the candidate visualizations. In this demonstration, the attendees will have the opportunity to experience the following features: (1) visualization recommendation -- Our system can automatically recommends meaningful visualizations by learning from existing known datasets and good visualizations; (2) keyword search -- The attendee can pose text queries for specifying what visualizations she wants (e.g., trends) without specifying how to generate them; (3) faceted navigation -- One can further refine the results by a click-based faceted navigation to find other relevant and interesting visualizations.
The in-patient psychiatric unit as both a safe and unsafe place : implications for absconding Authors

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