Miracle-dz/UniFAR-FTUs huggingface dataset:
Low loss inverter circuit based on buck and boost topology

This paper proposed inverter circuit for low power applications that can generate AC output voltage at fundamental output frequency larger than input voltage without need to increase the number of power switches, several isolated DC source or capacitors and transformer. By applying appropriate duty cycle and PWM switching pattern to the circuit, the near sinusoidal output voltage can be realized with voltage harmonic distortion nearly 5% without the use of filter at output terminal. MATLAB/SIMULINK is used to simulate the proposed circuit.
Hybrid TDMA-FDMA based inter-relay communication in cooperative networks over Nakagami-m fading channel

Hybrid Time division multiple access-Frequency division multiple access (TDMA-FDMA) based three time slots transmission protocol is proposed with inter-relay communication. In this paper an in-depth analysis of two protocols has been assessed for Nakagami-m fading channel. The system is also simulated at various relay locations to estimate the performance for optimization. Performance is analyzed in terms of Bit Error Rate (BER), Outage probability and Gain.
An Improved Recursive Bayesian Approach for Transformer Tap Position Estimation

In this paper, a reliable and efficient methodology based on the recursive Bayesian approach (RBA) and its improved version (SRBA) is proposed for the transformer tap position (TTP) estimation. By recursively computing the posteriori probabilities of all the tap positions of the suspicious transformer, the proposed approach can find the correct TTP reliably. Furthermore, we remarkably improve the computational efficiency of SRBA from the following aspects: 1) reducing the number of transformers to be estimated by identifying suspicious tap positions; 2) proposing a fast prediction-correction algorithm to calculate the residuals; 3) reducing the set including the correct tap position by using a heuristic method during the recursive process; 4) reducing iteration numbers by proposing a stopping criterion with solid theoretical foundation. Simulations are carried on the IEEE 14-bus system and a real power grid of China, illustrating that our methodology is reliable with high efficiency.
Network Coding-Based Real-Time Retransmission Scheme in Wireless Sensor Networks

In wireless sensor networks (WSNs), wireless links are unreliable and sensor nodes may be in sleep mode. Thus, many applications which require reliable broadcast cannot work properly if they lost some packets. In order to make sure every sensor node in the network receives all packets completely and correctly, retransmission of lost packets is indispensable. Many retransmission methods with network coding have been proposed but they do not catch coding opportunity. In this paper, real-time retransmission algorithm based on network coding (NCRR) is proposed to make the average number of transmissions as less as possible. During the transmission of original packets, we detect whether a certain time slot is suitable for retransmitting a coded packet based on recovery ratio. We analyze the number of transmissions with traditional retransmission and with network coding. Compared with existing approaches, simulation results show that our algorithm can effectively reduce the average number of transmissions and improve the transmission efficiency.
Mild Cognitive Impairment: Deficits in Cognitive Domains Other than Memory

Patients with mild cognitive impairment (MCI) typically present with memory complaints, but may have mild deficits in other cognitive domains. We compared the neuropsychological profiles of a series of consecutive MCI patients (n = 116) with a control group of healthy elderly subjects (n = 63). The presence of a memory deficit on delayed recall was consistent in the MCI sample, as it was an inclusion criterion in the study. Impairment on immediate recall was present in 62.6% of the patients on paragraph recall of the logical memory test and in 63.1% of the patients on the word paired-associate learning test. Remarkably, patients with MCI frequently had deficits in cognitive domains beyond memory. As much as 68.7% of the patients had deficits in temporal orientation, 30.2% had deficits in semantic fluency, 33.7% in the Token test, 23.4% in calculation, and 23.9% in motor initiative. If detailed neuropsychological testing is performed, the majority of MCI patients will have deficits in cognitive domains other than memory.
Z/EG, a double reporter mouse line that expresses enhanced green fluorescent protein upon cre‐mediated excision

Summary: The Cre/loxP system has become an important tool in designing postintegrational switch mechanisms for transgenes in mice. The power and spectrum of application of this system depends on transgenic mouse lines that provide Cre recombinase activity with a defined cell type‐, tissue‐, or developmental stage‐specificity. We have developed a novel mouse line that acts as a Cre reporter. The mice, designated Z/EG (lacZ/EGFP), express lacZ throughout embryonic development and adult stages. Cre excision, however, removes the lacZ gene, which activates expression of the second reporter, enhanced green fluorescent protein. We have found that the double‐reporter Z/EG line is able to indicate the occurrence of Cre excision from early embryonic to adult lineages. The advantage of the Z/EG line is that Cre‐mediated excision can be monitored in live samples and that live cells with Cre‐mediated excision can be isolated using a single‐step FACS. It will be a valuable reagent for the increasing number of investigators taking advantage of the powerful tools provided by the Cre/loxP site‐specific recombinase system. genesis 28:147–155, 2000. © 2000 Wiley‐Liss, Inc.
Predictive control estimating operator's intention for stepping-up motion by exo-skeleton type power assist system HAL

Generally, the operator's force signal is utilized in the case of the power assist. However, the operator must keep always providing the force in order to obtain the force signal. We have developed an exo-skeleton type power assist system, HAL (Hybrid Assistive Leg) for the walking aid. The purposes of this study are (1) to estimate the operator's action in the initial stage of the motion, (2) to propose the method for realizing the power assist corresponding to the operator's motion. We include the following mechanism into HAL system: (1) the mechanism which estimate the reference input of the bend angle of a joint by using myoelectricity, (2) the mechanism which autonomously generates the motion using phase sequence. For optional steps, experiments were performed to realize the stepping-up motion which reflects the intention of the operator. As the result, HAL started the autonomous motion immediately when the operator intended to start the motion, and stepping-up motion which reflected the intention of the operator was able to be achieved, even if the operator hardly generated the power.
More Intervention Now!

Techniques for characterizing performance and diagnosing problems typically endeavor to minimize perturbation by measurements and data collection. We are making a call to do exactly the opposite. In order to characterize the behavior of a system and to perform root-cause analysis and answer what-if questions, we need to conduct active and systematic experiments on our systems, perhaps at the same time these systems are running. We argue that in distributed computing frameworks such as MapReduce, Dryad and Hadoop, the conditions are right for automatically conducting these experiments. At each stage there is a large number of nodes doing the same computation, hence providing a sound statistical population. Furthermore, we have the infrastructure in such systems to isolate and recreate the conditions of a run. In this paper we propose the missing piece: a blueprint of the causal interactions that can be used to plan these experiments and perform inferences about the results. Machine learning and statistical analysis give us the tools and algorithms for inducing such a causal blueprint from a combination of passive observations and active intervention.
An Object-Oriented Framework for the Development of Computer-Based Guideline Implementations

Abstract Clinical practice guidelines provide a means of directing medical care towards clinically appropriate and cost-effective interventions. A direct relationship exists between the integration of a guideline into clinical workflow and the effectiveness of the guideline in influencing clinicians’ behavior. Computer-based guideline implementations, used at the point-of-care, accomplish this integration. Employing object-oriented technologies, we propose a framework of reusable components for the development of guideline implementation systems. We have identified eight information management services that are common to such systems. Our framework integrates these services and their respective reusable components into clinical workflow to promote the development of comprehensive guideline implementation systems, which should ultimately enhance guideline compliance and the overall quality of care.
Analysis of Concrete Wall under Blast Loading

The terrorist attacks and threats are the growing problem all over the world that not only affect the life of human being but also affect the structure integrity and its resistance. Explosive devices, human bomb and the other bomb equipments are the major weapon choices for these attacks, significantly threatens civilians and military personnel. As we know that ceasefire and bombing activities are increasing day by day also the terrorist attacks on major buildings can cause catastrophic failure on the building’s external and internal structural frames, collapsing of walls and shutting down of critical lifesafety system. Because of all these threat from such extreme condition, effort has been made from the last few decades to find suitable method of structural analysis and design to resist blast load. Detail understanding is required about the blast phenomena and the propagation of waves towards the structure and also response of structure against such shock waves. This paper presents a comprehensive study of concrete wall against this dynamic loading. Concrete wall subjected to blast loading is modeled in Finite Element package Ansys and then analyzed in Autodyn with and without steel plate to study the impact of blast loading.
Consulting with the Bereaved Mother

This paper describes approaches that may be used in consulting with the bereaved mother about engorgement and involution. The physical and emotional facets of this experience are intricately interwoven and lactation consultants should be aware that mothers may need a number of health care professionals to meet their needs. Suggestions for milk suppression, communication enhancement, and emotional support are offered.
Two Novel Arenaviruses Detected in Pygmy Mice, Ghana

Two arenaviruses were detected in pygmy mice (Mus spp.) by screening 764 small mammals in Ghana. The Natal multimammate mouse (Mastomys natalensis), the known Lassa virus reservoir, was the dominant indoor rodent species in 4 of 10 sites, and accounted for 27% of all captured rodents. No rodent captured indoors tested positive for an arenavirus.
Increased Susceptibility to DNA Virus Infection in Mice with a GCN2 Mutation

ABSTRACT The downregulation of translation through eIF2α phosphorylation is a cellular response to diverse stresses, including viral infection, and is mediated by the GCN2 kinase, protein kinase R (PKR), protein kinase-like endoplasmic reticulum kinase (PERK), and heme-regulated inhibitor kinase (HRI). Although PKR plays a major role in defense against viruses, other eIF2α kinases also may respond to viral infection and contribute to the shutdown of protein synthesis. Here we describe the recessive, loss-of-function mutation atchoum (atc) in Eif2ak4, encoding GCN2, which increased susceptibility to infection by the double-stranded DNA viruses mouse cytomegalovirus (MCMV) and human adenovirus. This mutation was identified by screening macrophages isolated from mice carrying N-ethyl-N-nitrosourea (ENU)-induced mutations. Cells from Eif2ak4atc/atc mice failed to phosphorylate eIF2α in response to MCMV. Importantly, homozygous Eif2ak4atc mice showed a modest increase in susceptibility to MCMV infection, demonstrating that translational arrest dependent on GCN2 contributes to the antiviral response in vivo.
Large‐Scale Precise Printing of Ultrathin Sol–Gel Oxide Dielectrics for Directly Patterned Solution‐Processed Metal Oxide Transistor Arrays

Ultrathin and dense metal oxide gate di-electric layers are reported by a simple printing of AlOx and HfOx sol-gel precursors. Large-area printed indium gallium zinc oxide (IGZO) thin-film transistor arrays, which exhibit mobilities >5 cm(2) V(-1) s(-1) and gate leakage current of 10(-9) A cm(-2) at a very low operation voltage of 2 V, are demonstrated by continuous simple bar-coated processes.
Modulation of gene expression by vitamin B 6

The physiologically active form of vitamin B6, pyridoxal 5 -phosphate (PLP), is known to function as a cofactor in many enzymic reactions in amino acid metabolism. Recent studies have shown that, apart from its role as a coenzyme, PLP acts as a modulator of steroid hormone receptormediated gene expression. Specifically, elevation of intracellular PLP leads to a decreased transcriptional response to glucocorticoid hormones, progesterone, androgens, and oestrogens. For example, the induction of cytosolic aspartate aminotransferase (cAspAT) in rat liver by hydrocortisone is suppressed by the administration of pyridoxine. The suppression of the cAspAT induction by pyridoxine is caused by a decrease in the expression of the cAspAT gene, which is brought about by inactivation of the binding activity of the glucocorticoid receptor to the glucocorticoidresponsive element in the regulatory region of the cAspAT gene. Vitamin B6 has recently been found to modulate gene expression not only for steroid hormone-responsive or PLP-dependent enzymes but also for steroidand PLP-unrelated proteins such as serum albumin. Albumin gene expression was found to be modulated by vitamin B6 through a novel mechanism that involves inactivation of tissue-specific transcription factors, such as HNF-1 or C/EBP, by direct interaction with PLP in a similar manner to glucocorticoid receptor. Enhancement of albumin gene expression in the liver by an increased supply of amino acids can be explained by elevated binding of HNF-1 and C/EBP to their DNA-binding sites which, in turn, is caused by a decrease in the intracellular level of PLP by the increased amino acid supply. These findings that vitamin B6 acts as a physiological modulator of gene expression add a new dimension to the hitherto recognized function of vitamin B6 as a cofactor of enzyme action.
Microevolution during epidemic spread of Neisseria meningitidis (minireview)

Similar to many other naturally transformable bacteria, Neisseria meningitidis has yielded many examples where horizontal genetic exchange has resulted in genetic variation of individual strains. Epidemic strains are purified of genetic variants due to bottlenecks during the spread from country to country, resulting in clonal descent. Occasionally, clonal replacement also occurs during epidemic spread. These processes occur rapidly in serogroup A meningococci; such that after their descent from a common ancestor, clonally related bacteria have diversified at numerous loci within the last decades.
Missing Data: A Systematic Review of How They Are Reported and Handled

Background: The objectives of this systematic review are to examine how researchers report missing data in questionnaires and to provide an overview of current methods for dealing with missing data. Methods: We included 262 studies published in 2010 in 3 leading epidemiologic journals. Information was extracted on how missing data were reported, types of missing, and methods for dealing with missing data. Results: Seventy-eight percent of the studies lacked clear information about the measurement instruments. Missing data in multi-item instruments were not handled differently from other missing data. Complete-case analysis was most frequently reported (81% of the studies), and the selectivity of missing data was seldom examined. Conclusions: Although there are specific methods for handling missing data in item scores and in total scores of multi-item instruments, these are seldom applied. Researchers mainly use complete-case analysis for both types of missing, which may seriously bias the study results.
ANOMALY DETECTION OF EVENTS IN CROWDED ENVIRONMENT AND STUDY OF VARIOUS BACKGROUND SUBTRACTION METHODS

Anomalous behavior detection and localization in videos of the crowded area that is specific from a dominant pattern are obtained. Appearance and motion information are taken into account to robustly identify different kinds of an anomaly considering a wide range of scenes. Our concept based on a histogram of oriented gradients and Markov random field easily captures varying dynamic of the crowded environment. Histogram of oriented gradients along with well-known Markov random field will effectively recognize and characterizes each frame of each scene. Anomaly detection using artificial neural network consist both appearance and motion features which extract within spatio temporal domain of moving pixels that ensures robustness to local noise and thus increases accuracy in detection of a local anomaly with low computational cost. To extract a region of interest we have to subtract background. Background subtraction is done by various methods like Weighted moving mean, Gaussian mixture model, Kernel density estimation.
Asbestos in Poland: Occupational health problems

The presentation addresses current problems of health risk and health effects associated with exposure to asbestos, including data on historical exposure and on currently valid occupational exposure limits. The quantity and types of the raw material used for the production of various asbestos products have also been discussed in relation to the particular types of asbestos-induced occupational diseases. The authors describe the medical care system for former asbestos workers and those currently exposed during removal of asbestos-containing products. The national system for medical certification of occupational asbestos-related diseases and the compensation procedure have been outlined as well. According to the parliamentary Act of 1997, importing, manufacture and sale of asbestos and asbestos-containing materials are prohibited in Poland. Thus, the assessment of asbestos exposure and the monitoring of health conditions of workers at asbestos-processing plants have become irrelevant. However, the delayed health effects attributable to past exposure continue to be the matter of concern for public health. Likewise, the environmental pollution from asbestos waste landfills in the vicinity of asbestos-processing plants (where high levels of asbestos fibre in ambient air have been recorded) will continue to be a serious public health problem. Presently, two programmes aimed at minimising the adverse effects of asbestos on population health are underway. One of them is the governmental programme for “Elimination of asbestos and asbestos-containing products used in Poland, 2002–2032”. The programme was updated in 2009 to cover the workers contracted to perform demolition works and provide protective covers to asbestos waste landfills. This will be the exposed group who need prophylactic health care. The other is a programme of prophylactic examinations for former asbestos workers and is referred to as the AMIANTUS programme. Both programmes have been briefly described.
An electron microscopic study of synaptic organization in the medial superior olive of normal and experimental chinchillas

The medial superior olive (MSO) was studied in normal animals to determine the types of synaptic endings and their distribution over the surface of MSO neurons. Unilateral lesions were made in the anteroventral cochlear nucleus (AVCN) of experimental animals to determine the source of at least one synaptic type in the MSO.
An implementation of web-RTC based audio/video conferencing system on virtualized cloud

Audio/video conferencing system have been increasing gradually due to enhancement of work productivity and deduction of expenditure. In this paper, we implemented a web-RTC-based audio/video conferencing system on virtualized cloud. Through this system, users can experience audio/video conference with only web browser. Also this system provides flexible capabilities through the elastic resources management from virtualized cloud.
Generalised Style Analysis of Hedge Funds Vikas

This paper attempts to shed light on the ‘black-box’ called hedge funds via style analysis technique developed by Sharpe (1992). The conventional style analysis cannot be directly applied to hedge funds as it imposes two constraints: first, the style weights have to be nonnegative and second, they have to add up to a hundred percent. In addition, the conventional style analysis does not provide any information about the statistical significance of the style weights. In this paper, we conduct a generalised style analysis of various hedge fund strategies by relaxing the constraints of the conventional style analysis, and examine the significance of style weights, a la Lobosco and DiBartolomeo (1997). We find that the generalised style analysis approach is more robust for estimating the risk exposures of hedge funds that take short positions in various asset classes and typically hold significant part of their portfolio in cash.
Far-field and Fresnel Liquid Crystal Geometric Phase Holograms via Direct-Write Photo-Alignment

We study computer-generated geometric-phase holograms (GPHs) realized by photo-aligned liquid crystals, in both simulation and experiment. We demonstrate both far-field and Fresnel holograms capable of producing far-field and near-field images with preserved fidelity for all wavelengths. The GPHs are fabricated by patterning a photo-alignment layer (PAL) using a direct-write laser scanner and coating the surface with a polymerizable liquid crystal (i.e., a reactive mesogen). We study various recording pixel sizes, down to 3 μm, that are easily recorded in the PAL. We characterize the fabricated elements and find good agreement with theory and numerical simulation. Because of the wavelength independent geometric phase, the (phase) fidelity of the replay images is preserved for all wavelengths, unlike conventional dynamic phase holograms. However, governed by the diffraction equation, the size and location of a reconstructed image depends on the replay wavelength for far-field and near-field GPHs, respectively. These offer interesting opportunities for white-light holography.
High‐Frequency Positive‐Pressure Ventilation (HFPPV): A Review Based upon Its Use during Bronchoscopy and for Laryngoscopy and Microlaryngeal Surgery under General Anesthesia

* Research Engineer (project 4252) of the Swedish Medical Research Council; t Senior Clinical Associate of Anesthesia, Department of Anesthesiology and Intensive Care, Regional Hospital of Orebro. $ Associate Professor of Medical Physiology, University of Uppsala, Uppsala; Research Associate of the Swedish Medical Research Council; Deputy Head, Department of Anesthesiology and Intensive Care, Regional Hospital of Orebro. This work was supported by the Swedish Medical Research Council (project 4252). the Orebro County Council, and the Research Fund of the Orebro County Council. During this investigation Ulf Sjostrand was a full-time Research Associate (project 4937) of the Swedish Medical Research Council. Received from the Department of, Anesthesiology and Intensive Care, Regional Hospital, 5-701 85 Orebro, Sweden. Accepted for publication May 15, 1980. Reprint requests to Dr. Sjostrand, Department of Anesthesiology and Intensive Care.