Miracle-dz/UniFAR-FTUs huggingface dataset:
High-throughput signal detection based on fast matrix inversion updates for uplink massive multiuser multiple-input multi-output systems

In this study, zero-forcing matrix decomposition polynomial expansion update (ZF-MDPE-update) and zero-forcing successive over relaxation update (ZF-SOR-update) algorithms are proposed to update a zero-forcing detector quickly without requiring complicated matrix inversion recomputations when massive multiple-input multi-output systems channel estimates contain a small perturbation. To further accelerate the convergence rate and to maximise date throughput, a new method of calculating the optimal coefficients for the matrix polynomial that can significantly improve the accuracy of the initial input inverse matrix approximation is considered by the ZF-MDPE-update algorithm. On the other hand, the ZF-SOR-update algorithm with an optimal iterative initial solution and an optimal relaxation parameter is devised, which achieves excellent detection performance. Results demonstrate that when the ratio of base station (BS) antennas to user terminal (UT) antennas, β , is small, the proposed update detection algorithms, with only a few operations, achieve a significant improvement in the average achievable rate of the UTs compared to the recently proposed update algorithm. Therefore, more UTs can be served in a cell with a fixed number of BS antennas. At the same time, the authors' algorithms are shown to facilitate easy memory transfer and are low cost.
A matching design for ultra-capacitor and Li-ion battery cooperation in electric wheel motors

A matching design for the cooperation of super-capacitor and Lithium-ion battery in electric wheel motors is proposed in this paper. This concept is originated with anticipation of grasping the power delivery through the control of switching time between the super-capacitor and lithium-ion battery, by which the excessive energy of lithium-ion battery can be dissipated to each cell such that the battery equalizer can be reached, while the super-capacitor is meanwhile served as the energy-recycling device to accomplish the energy-saving goal. This proposed approach has been realized as the laboratory prototype, by which the simulations are validated with satisfactory test results.
An Outbreak of Infections Caused by a Klebsiella pneumoniae ST11 Clone Coproducing Klebsiella pneumoniae Carbapenemase-2 and RmtB in a Chinese Teaching Hospital

Background: Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae bacteria, which cause serious disease outbreaks worldwide, was rarely detected in Xiangya Hospital, prior to an outbreak that occurred from August 4, 2014, to March 17, 2015. The aim of this study was to analyze the epidemiology and molecular characteristics of the K. pneumoniae strains isolated during the outbreak. Methods: Nonduplicate carbapenem-resistant K. pneumoniae isolates were screened for bla KPC-2 and multiple other resistance determinants using polymerase chain reaction. Subsequent studies included pulsed-field gel electrophoresis (PFGE), multilocus sequence typing, analysis of plasmids, and genetic organization of bla KPC-2 locus. Results: Seventeen bla KPC-2-positive K. pneumoniae were identified. A wide range of resistant determinants was detected. Most isolates (88.2%) coharbored bla KPC-2 and rmtB in addition to other resistance genes, including bla SHV-1, bla TEM-1, and aac(3)-IIa. The bla KPC-2 and rmtB genes were located on the conjugative IncFIB-type plasmid. Genetic organization of bla KPC-2 locusin most strains was consistent with that of the plasmid pKP048. Four types (A1, A2, A3, and B) were detected by PFGE, and Type A1, an ST11, was the predominant PFGE type. A novel K. pneumoniae sequence type (ST1883) related to ST11 was discovered. Conclusions: These isolates in our study appeared to be clonal and ST11 K. pneumoniae was the predominant clone attributed to the outbreak. Coharbing of bla KPC-2 and rmtB, which were located on a transferable plasmid, in clinical K. pneumoniae isolates may lead to the emergence of a new pattern of drug resistance.
Species-specific functional interactions of DNA polymerase alpha-primase with simian virus 40 (SV40) T antigen require SV40 origin DNA

Physical and functional interactions of simian virus 40 (SV40) and polyomavirus large-T antigens with DNA polymerase alpha-primase were analyzed to elucidate the molecular basis for the species specificity of polymerase alpha-primase in viral DNA replication. SV40 T antigen associated more efficiently with polymerase alpha-primase in crude human extracts than in mouse extracts, while polyomavirus T antigen interacted preferentially with polymerase alpha-primase in mouse extracts. The apparent species specificity of complex formation was not observed when purified polymerase alpha-primases were substituted for the crude extracts. Several functional interactions between T antigen and purified polymerase alpha-primase, including stimulation of primer synthesis and primer elongation on M13 DNA in the presence or absence of the single-stranded DNA binding protein RP-A, also proved to be independent of the species from which polymerase alpha-primase had been purified. However, the human DNA polymerase alpha-primase was specifically required for primosome assembly and primer synthesis on SV40 origin DNA in the presence of T antigen and RP-A.
After Effects 表达式的应用

表达式已经成为高端合成软件非常重视的部分,只要有表达式的软件不管是在销售和使用方面都越来越普遍,如Shake软件,它的表达式功能非常强大,许多好莱坞的制作高手都在把习惯朝Shake上转。 以前只有在三维软件里才有表达式,合成软件引进表达式的概念,大大方便了复杂效果的制作。 AfterEffects的表达式功能也很强,而且操作非常方便。 有很多学美术的朋友一听到表达式就头痛,因表达式的使用要求十分严谨,其实After Effects的表达式也不很复杂,不需要很懂数学就能使用,因此不要对它产生畏惧心理。 下面来看一个使用表达式的例子。 调入一张汽车的图片,假如我们要
Biological Dosimetry by Automated Dicentric Scoring in a Simulated Emergency

Dicentric chromosome analysis remains the most widely used method in biodosimetry. It has a lower detection limit of about 0.1 Gy, and allows one to distinguish between whole- and partial-body exposures. A drawback of the dicentric analysis is that it is a time consuming method and maybe difficult to implement in a mass casualty event. To try to increase the analysis capacity, automatic dicentric scoring (ADS) using image analysis software is being incorporated in several laboratories. Here we present the results obtained in an emergency exercise simulating 50 victims. The ability to distinguish different radiations scenarios is evaluated. To simulate whole-body exposures peripheral blood samples were irradiated at doses between 0–4.7 Gy, and to simulate partial-body exposures irradiated and nonirradiated blood were mixed in different proportions. With the data obtained from the first slide analyzed (with about 300–400 cells), 32 of 34 simulated whole-body exposures were correctly classified according to radiation exposure levels. For simulated partial-body irradiations, it was possible to detect them as partial exposures at the end of the first slide analyzed but only at the highest doses. In all cases the classification was updated every time the analysis of one additional slide was finished. The comparison between our present results and those reported in the literature for manual scoring shows that for triage purposes the ADS based on 300–400 cells is similar in efficiency to classifying the cases based on manual scoring of 50 cells. However, if one accounts for the associated uncertainties and the time needed for ADS, we suggest that ADS triage scoring should be based on about 1,000 cells. For final dose estimations the number of cells to score will depend on the initial estimated dose, and on the information contributed from physical dose-reconstruction or clinical symptoms. At doses higher than 1 Gy, we propose analysis of 1,500 and for lower doses or suspected partial-body exposures, the number of cells to score should be 3,000.
Statistical analysis of balanced brain and IQ applications

EEG signal research had been studied massively in such balanced brain and IQ applications. This paper focuses on correlation between balanced brain and Intelligence Quotient (IQ) applications. At first, the raw EEG signals from both applications need to pre-process to remove artefact and unwanted frequency. Then, the EEG signals will go through statistical processes which are Scatterplot and Correlation test. As a result, there is correlation between the balanced brain and IQ application with strong and significant Pearson correlation.
Sequential parameterizing affine projection (SPAP) windowing length for acoustic echo cancellation on speech accents identification

Echo cancellation has always in the preprocessing steps before the signals are converted to feature vectors and pattern classification. This is always the correct flow of speech identification. Therefore, in order to get the best cleaned signal, the usage of adaptive echo cancellation removed the echo and also the noise which deteriorates the signals and final results during classification process. The concepts of windowing length may improve the cleaned signals acquired after the noise or echo cancellation process is done. By proposing the preconfigured windowing length through sequential technique, the results is giving improvement from normal length of 200ms to 400ms whereby the results of Word Error Rate(WER), Equal Error Rate (EER) and accuracies can be viewed with increases around 5–10% of percentage values compared with echoed signal and reduced the WER and EER too with applying of the sequential parameterization (SPAP) technique.
Offset-Free Gigahertz Midinfrared Frequency Comb Based on Optical Parametric Amplification in a Periodically Poled Lithium Niobate Waveguide

Compact laser frequency combs covering the midinfrared ``fingerprint'' spectral region are desirable light sources for high-sensitivity, high-resolution detection of target molecules. The authors leverage the nonlinear properties of chip-scale Si${}_{3}$N${}_{4}$ and periodically poled LiNbO${}_{3}$ waveguides to obtain a tunable, energy-efficient mid-IR frequency comb. Here the pulse energy needed for a given power per comb line is nearly two orders of magnitude lower than for conventional systems. These results are promising for applications in environmental, medical, and industrial diagnostics.
Genome Analysis Evolutionary Divergence of Monocot and Dicot Methyl-CpG-Binding Domain Proteins 1 [ w ]

The covalent modification of eukaryotic DNA by methylation of the 5# carbon of cytosine residues is frequently associated with transcriptional silencing. In mammals, a potential mechanism for transducing DNA methylation patterns into altered transcription levels occurs via binding of methyl-CpG-binding domain (MBD) proteins. Mammalian MBD-containing proteins bind specifically to methylated DNA and recruit chromatin-modifying complexes containing histone deacetylase activities. Sequence similarity searches reveal the presence of multiple proteins in plants containing a putative MBD. Outside of the MBD itself, there is no sequence relationship between plant and mammalian MBD proteins. The plant MBD proteins can be divided into eight classes based on sequence similarity and phylogenetic analyses of sequences obtained from two complete genomes (rice [Oryza sativa] and Arabidopsis [Arabidopsis thaliana]) and from maize (Zea mays). Two classes of MBD proteins are only represented in dicot species. The striking divergence of plant and animal MBD-containing proteins is in stark contrast to the amino acid conservation of DNA methyltransferases across plants, animals, and fungi. This observation suggests the possibility that while plants and mammals have retained similar mechanisms for the establishment and maintenance of DNA methylation patterns, they may have evolved distinct mechanisms for the interpretation of these patterns.
Functional brain networks and schizophrenia analysis with fMRI by Multiset Canonical Correlation Analysis

In this work the multivariate technique called Multiset Canonical Correlation Analysis (M-CCA) is applied to study a group of functional Magnetic Resonance Imaging (fMRI) datasets acquired during a set of working memory (WM) tasks. The examined subjects are a small group of schizophrenic patients and an equal number of controls (healthy subjects). The purpose of the paper is to show that M-CCA is able to identify specific areas of the brain network that can be related with the sources of activity during the WM task. It is also shown that the different degree of activation between the two groups allows to discriminate between Controls and Patients and then provides a promising way for a pre-screening classification of successive dataset. This result can contribute, in future, to populate a database of specific brain activation areas of mental disorders.
The role of antioxidant phytonutrients in the prevention of diseases

The authors investigated the in vitro antioxidant properties of nine selected flavonoid aglycons, namely quercetin, kaempferol, myricetin, apigenin, luteolin, daidzein, genistein, formononetin and biochanin A. The in vitro antioxidant power of flavonoids basically depends on their chemical structure. The concentration of those flavonoids in vegetables and fruits frequently consumed in Hungary was examined by a RP-HPLC method. Referring to the total flavonoid content, rich sources were onions, parsnip, spinach, different parts of celery, and lentils. Among the fruits berries were very rich sources of flavonoids (blackberry, red current). The flavonoid intake was estimated in two groups, first included more than 500 schoolboys and girls aged 12-15 years, and the second group was about 200 healthy adults aged 25-60 years. The average dietary flavonoid intake of the children and the adults was 19.5±26.6 and 18.8±28.9 mg/day, respectively. The flavonoid intake showed high differences among the subjects. The consumption of flavonoids in the children's group was from 0 to 179 mg/day, and in the adults¢ group from 0.5 to 310 mg/day. Although two groups in our study did not represent exactly the total Hungarian population it is supposed that the average daily flavonoid intake of the population is not different from these data. The estimated Hungarian intake is very similar to that of others published in the literature.
Imprinting defects in mouse embryos: stochastic errors or polymorphic phenotype?

Summary: Defects in expression of imprinted genes are believed to cause developmental abnormalities and play a role in carcinogenesis. To determine whether spontaneous imprinting defects may occur in mouse embryos, we studied the expression of two imprinted genes H19 and Igf2 in individual postimplantation 7.5 d.p.c. and 8.5 d.p.c. embryos. Biallelic expression of H19 was found in 1.6% of the embryos, whereas biallelic expression of Igf2 was found in 0.5% of the embryos. The loss of H19 imprinting (LOI) observed in a small fraction of early postimplantation embryos may be purely stochastic. Alternatively, since we never observed it in an inbred background, it may depend on genetic factors acting in trans. Either mechanism could explain the occurrence of polymorphic imprinting as well as the genesis of sporadic imprinting defects, including cancer. The frequency of LOI of H19 was higher than the incidence of sporadic imprinting disorders in humans (about 1 in 20,000). This contradiction may be explained by different incidence of imprinting errors in different imprinted regions of the genome, in different species, or by loss of the majority of nonmosaic embryos with imprinting defects before birth. genesis 31:11–16, 2001. © 2001 Wiley‐Liss, Inc.
ON SPOKEN LANGUAGE PROCESSING Progress Report No . 22 ( 1998 ) Indiana University Performance of Normal-Hearing Children on a New Working Memory Span Task

This paper reports memory span data from 45 monolingual, normal-hearing children ranging in age from 3;5 to 5;11 years. A newly implemented methodology (here termed the “memory span game”) required participants to reproduce sequences of lights, or sequences of lights accompanied by sounds, by pressing appropriately matched buttons on a response box. Auditory stimuli used in the light-plus-sound condition included digitnames and nonsense syllables. The effects of auditory stimulus type, and of presenting the target sequence as lights-plus-sound vs. lights-only, were examined. Digit-spans obtained using the memory span game were compared to spans from the same children obtained using the conventional digit memory span sub-test of the Wechsler Intelligence Scale for Children III, in order to assess the degree to which the processing demands of these two tasks overlap. In addition, expanding on previously reported findings in the literature concerning a relationship between working memory span and vocabulary development, we obtained measures of each child’s receptive and expressive vocabulary as well as nonword repetition skills using two standardized tests. Results show that children improve as a function of age on the new memory game task at rates very similar to that obtained for the WISC forward digit span task. We found that children younger than 3;5 were generally unable to meet the demands of the memory span game task. Differences between the group means between the three different memory span game conditions were not significant; however, correlational analyses showed clear differences between the visual-spatial/lights-only condition vs. the auditory plus visual-spatial condition in how predictive each score was of vocabulary measures. Scores obtained from the auditory plus visual-spatial condition of the memory game task accounted for approximately 12-16% of the variance in vocabulary scores with the effects of age partialled out, while the lights-only/silent condition scores only predicted approximately 2% of this variance. Results from the nonword repetition measures show that the phonetic similarity of the nonsense words to familiar words influenced the strength of this task’s relationship with vocabulary measures, but not with working memory span measures such as WISC digit-span and memory span game scores (although the previously reported small positive correlations between these measures were replicated). These results have both theoretical and clinical implications for the use of this reproductive memory span task with hearing-impaired children who may have expressive language problems or delays. The findings are also relevant to the development of phonological representations in short-term memory and spoken word recognition abilities in normalhearing children.
Decreased proportion of Foxp3+CD4+ regulatory T cells contributes to the development of hypertension in genetically hypertensive rats

Objective: Dysregulation of the sympathetic nervous system and the immune system has been highlighted in the pathogenesis of hypertension. Foxp3+ regulatory T (Treg) cells, which maintain immune homeostasis, have potent antihypertensive properties. We systematically explored whether Treg cells proportions are altered in stroke-prone spontaneously hypertensive rats (SHRSP) with increased sympathetic activity. Then, we focused on Treg cells in the spleen and determined whether Treg cells proportion in the spleen could be affected by splenic sympathetic input associated with the progression of hypertension. We also investigated effects of Treg cell induction on hypertension development and cardiac hypertrophy in SHRSP. Methods and Results: We evaluated Treg cells in SHRSP. Compared with normotensive Wistar-Kyoto (WKY) rats, SHRSP exhibited decreased proportions of CD4+CD25+Foxp3+ cells (Treg cells) in the spleen before the onset of hypertension. Splenic sympathetic denervation in prehypertensive SHRSP attenuated the reduction of Treg cells at 4 weeks after denervation (P < 0.05) and delayed the development of hypertension in SHRSP. Interleukin (IL)-2 and anti-IL-2 mAb complex selectively induced Treg cells in vivo (P < 0.01), delayed the development of hypertension and decreased the heart weight/body weight ratio (4.64 ± 0.06 vs. 4.25 ± 0.05 mg/g, P < 0.01) and the cross-sectional area of cardiac myocytes in SHRSP compared with vehicle-treated SHRSP (580 ± 3.91 vs. 438 ± 4.43 &mgr;m2, P < 0.0001). Conclusion: Our findings indicate that a decrease in Treg cell proportion is crucial for the development of hypertension and cardiac hypertrophy in SHRSP, which is involved in sympathetic neural input to the spleen.
Salus: Kernel Support for Secure Process Compartments

Consumer devices are increasingly being used to perform security and privacy critical tasks. The software used to perform these tasks is often vulnerable to attacks, due to bugs in the application itself or in included software libraries. Recent work proposes the isolation of security-sensitive parts of applications into protected modules, each of which can be accessed only through a predefined public interface. But most parts of an application can be considered security-sensitive at some level, and an attacker who is able to gain inapplication level access may be able to abuse services from protected modules. We propose Salus, a Linux kernel modification that provides a novel approach for partitioning processes into isolated compartments sharing the same address space. Salus significantly reduces the impact of insecure interfaces and vulnerable compartments by enabling compartments (1) to restrict the system calls they are allowed to perform, (2) to authenticate their callers and callees and (3) to enforce that they can only be accessed via unforgeable references. We describe the design of Salus, report on a prototype implementation and evaluate it in terms of security and performance. We show that Salus provides a significant security improvement with a low performance overhead, without relying on any non-standard hardware support.
Wavelet based analysis of microstrip structures on triangular grids

In this paper novel wavelets based on Rao-Wilton-Glisson-functions are introduced for method of moments on triangular grids. To demonstrate matrix sparsity, they are applied to a generic microstrip example. The approach combines the flexibility of a general grid based on triangles with the data and CPU-time saving potentials of a wavelet expansion.
Analyzing SLAM Algorithm Performance for Tracking in Augmented Reality Systems

In developing augmented reality based tutoring scenarios difficult issues can arise if the environment used is not initially known. Lacking in pre-determined fiducial markers, the tracking of the user’s position and orientation relative to their starting point can easily be lost. A potential solution lies within the robotics field: simultaneous localization and mapping (or SLAM) algorithms which rely on visual tracking methods to both determine the layout of the environment and the robot’s current position and orientation given the previous estimate. However, when applied to a human subject in an augmented reality environment, the agility of their movement during performance activities can lead to issues. In this paper, we discuss the framework used to test a set of SLAM algorithms and determine their capabilities of tracking a human subject performing a variety of movements. We detail the SLAM algorithms analyzed and explain their potential usage given equipment combinations that may be developed in a lab environment. We also go through each movement set, detailing the hardware used in the recording process and how the user’s movements are designed to test the limits of a SLAM algorithm. By developing a networked framework, we show how the system is easily adapted to test an algorithm with minimal changes to its code and how it may be used to evaluate future SLAM research. In the end, our framework shows the capabilities and limits of SLAM algorithms when tracking a human user in an augmented reality system.