Miracle-dz/UniFAR-FTUs huggingface dataset:
A rectification strategy for state estimation of qudarotors based on parallel tracking and mapping

Unmanned Aerial Vehicles (UAVs) is a kind of aircraft performing certain intelligence without pilot. To fulfill complex and practical tasks, accurate state estimation is an essential subject of UAVs. However, UAV is easy to be lost and hardly to be localized again in the unknown environments due to low features and strong flexibility in the previous SLAM system. In this paper, a rectification strategy is proposed to improve UAVs' robustness of SLAM and autonomous navigation with monocular camera. The features in each frame are detected and compared with existed features in the world coordinate system. Then, we set a threshold value and construct a feedback system to make sure the UAV can always be tracked. Experimental result shows that the proposed method can make the SLAM algorithm more robust.
Noisy Preferences in Risky Choice: A Cautionary Note

We examine the effects of multiple sources of noise in risky decision making. Noise in the parameters that characterize an individual’s preferences can combine with noise in the response process to distort observed choice proportions. Thus, underlying preferences that conform to expected value maximization can appear to show systematic risk aversion or risk seeking. Similarly, core preferences that are consistent with expected utility theory, when perturbed by such noise, can appear to display nonlinear probability weighting. For this reason, modal choices cannot be used simplistically to infer underlying preferences. Quantitative model fits that do not allow for both sorts of noise can lead to wrong conclusions.
Model-Based Classification With Constraints : Who Wrote Each Chapter In Finbar ’ s Hotel ?

Finbar’s Hotel is a multi-author book which was written by seven contemporary Irish authors. A novelty aspect of the book is that the names of the seven authors are known, but the assignment of authors to the seven chapters is unknown; each chapter has only one author. A model-based classification procedure is developed to determine the authorship of each chapter of the book. Vocabulary distributions are modelled using Sichel distributions which are estimated using text samples from the chapters and from books by the seven authors. Constraints are introduced into the model-based classification procedure so that a one-to-one matching of chapters and authors is achieved. A comparison of the maximum likelihood and Bayesian approaches to implementing the model-based classification procedure is completed. Finally, we give an answer to the question “Who wrote each chapter of Finbar’s Hotel? ”
Integrated Management of Stem and Root Rot of Sesame (Sesamum indicum L.) caused by Macrophomina phaseolina (Tassi) Goid

Sesame (Sesamum indicum L.) rhetorical as “Queen of oilseeds” is one of the most important ancient edible oilseed crop grown in India. Among the oilseed crops, sesame ranks first for its higher oil content with 6335 kcal kg -1 of dietary energy in seeds (Kumar and Goel, 1994). Oilseeds are among the major crops that are grown in the country apart from cereals. India contributes the highest sesame acreage of above 17.73 lakh hectare and production 8 lakh tones and productivity of 445 kg/ha. The low productivity is attributed to poor crop management and exposure of the crop to a number of biotic and abiotic stresses. India is the fifth largest vegetable oil economy in the world, next only to USA, China, Brazil and Argentina and has an annual turnover of about International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 8 Number 04 (2019) Journal homepage: http://www.ijcmas. com
Compact Network for Speakerbeam Target Speaker Extraction

Speech separation that separates a mixture of speech signals into each of its sources has been an active research topic for a long time and has seen recent progress with the advent of deep learning. A related problem is target speaker extraction, i.e. extraction of only speech of a target speaker out of a mixture, given characteristics of his/her voice. We have recently proposed SpeakerBeam, which is a neural network-based target speaker extraction method. Speaker-Beam uses a speech extraction network that is adapted to the target speaker using auxiliary features derived from an adaptation utterance of that speaker. Initially, we implemented SpeakerBeam with a factorized adaptation layer, which consists of several parallel linear transformations weighted by weights derived from the auxiliary features. The factorized layer is effective for target speech extraction, but it requires a large number of parameters. In this paper, we propose to simply scale the activations of a hidden layer of the speech extraction network with weights derived from the auxiliary features. This simpler approach greatly reduces the number of model parameters by up to 60%, making it much more practical, while maintaining a similar level of performance. We tested our approach on simulated and real noisy and reverberant mixtures, showing the potential of SpeakerBeam for real-life applications. Moreover, we showed that speech extraction performance of SpeakerBeam compares favorably with that of a state-of-the-art speech separation method with a similar network configuration.
Application of Spinosad Increases the Susceptibility of Insecticide-Resistant Alphitobius diaperinus (Coleoptera: Tenebrionidae) to Pyrethroids

ABSTRACT The effect of spinosad exposure on the susceptibility of pyrethroid- and organophosphate-resistant populations of lesser mealworm, Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae), to insecticides was investigated in broiler house farm and laboratory studies. A field pyrethroid- and organophosphate-resistant population showed a 3.6-fold increase in susceptibility to &ggr;-cyhalothrin following spinosad treatment. Overall, cyfluthrin- and fenitrothion-resistant field populations were more susceptible to these insecticides following spinosad treatments, but populations that were not resistant showed no change in susceptibility following spinosad treatment. In a related study, three broiler farm beetle populations with very similar levels of cyfluthrin and &ggr;-cyhalothrin resistance and similar susceptibilities to spinosad were used to investigate temporal effects of spinosad field treatments on the susceptibility to pyrethroids. Farm insecticide regimes applied at the start of each flock differed: the control broiler house received no insecticide applications, another house was systematically treated with cyfluthrin at the start of each study flock, and the third house was systematically treated with spinosad at the start of five flocks. Afterwards, treatments reverted to cyfluthrin on all farms. At the end of flocks, beetles were tested with cyfluthrin, &ggr;-cyhalothrin, and spinosad. The control and cyfluthrin house beetles did not change susceptibility to pyrethroids over the period of the study. In the spinosad house, spinosad had no effect on spinosad susceptibility but dramatically increased cyfluthrin and &ggr;-cyhalothrin susceptibilities. These new susceptibilities were maintained while spinosad applications continued, but pyrethroid susceptibility declined once spinosad applications ceased. This study provides evidence of a synergistic interaction between spinosad and pyrethroids in pyrethroid-resistant beetles. This evidence has significant implications for management of insecticide-resistant populations through an integrated spinosad-pyrethroid strategy that aims to minimize insecticide use while enhancing control.
Effects of Vine Shoot Extract on Riboflavin-Induced DNA Damage in HepG2 Cells

Winery by-products, including pomace, stem, vine leaves and shoots, arise in high amounts during the wine-making process. Due to high contents of secondary plant metabolites, such as polyphenols, their usage in the food, cosmetics and pharmaceutical industry is possible. In this study, we investigated effects of an extract prepared from vine shoots (Vitis vinifera L. cv. Riesling) on riboflavin-induced DNA damage in human hepatocellular carcinoma cells HepG2 by comet assay. Significant decreases of DNA damages were detected after 2 h and 24 h extract incubation at concentration ranges of 1 to 30 µg/mL (2 h) and 1 to 10 µg/mL (24 h), respectively. These effects may be attributable to polyphenolic compounds, which has to be further investigated.
FL-PCP: Frequency Locking for Energy-Efficient Real-Time Task Synchronization

In the past decade, energy-efficient real-time task scheduling has been widely explored in terms of various optimization problems. With a very different goal, this paper considers real-time task synchronization protocols with the minimization of energy consumption. We propose the concept of frequency locking and extend the priority ceiling protocol by locking the processor frequency in a restricted way so that the cost in frequency switching is better managed. Algorithms are proposed to assign tasks base frequencies in the minimization of the energy consumption and with the consideration of schedulability tests. The capability of the proposed methodology is evaluated by a series of experiments, for which encouraging results were presented.
Affective Content-Based Film Clips Retrieval Algorithm Using Improved Fuzzy Comprehensive Evaluation

With the development of computer’s communication and multimedia technologies, the amount of video data is enlarged at an explosive speed. How to realize the personal video service becomes a hot issue in video retrieval area. In this paper, a new retrieval approach is proposed base on the scene affective content evaluation. First, affective content evaluation values are computed by improved fuzzy comprehensive evaluation model corresponding to different emotion types, and they are combined to become a vector which is used to describe the content of every scene. Then a film clip retrieval system is established by using triangle similarity measure. Finally, the experiment results are given. The experimental results show that the proposed method can perform best with a high retrieval accuracy rate (exceeding 88%).
The Choroid Plexus and Cerebrospinal Fluid: Emerging Roles in Development, Disease, and Therapy

Although universally recognized as the source of cerebrospinal fluid (CSF), the choroid plexus (ChP) has been one of the most understudied tissues in neuroscience. The reasons for this are multiple and varied, including historical perceptions about passive and permissive roles for the ChP, experimental issues, and lack of clinical salience. However, recent work on the ChP and instructive signals in the CSF have sparked new hypotheses about how the ChP and CSF provide unexpected means for regulating nervous system structure and function in health and disease, as well as new ChP-based therapeutic approaches using pluripotent stem cell technology. This minisymposium combines new and established investigators to capture some of the newfound excitement surrounding the ChP-CSF system.
PB1-F2 Expression by the 2009 Pandemic H1N1 Influenza Virus Has Minimal Impact on Virulence in Animal Models

ABSTRACT Unlike previous pandemic viruses, the 2009 H1N1 pandemic influenza virus does not code for the virulence factor PB1-F2. The genome of the 2009 H1N1 virus contains three stop codons preventing PB1-F2 expression; however, PB1-F2 production could occur following genetic mutation or reassortment. Thus, it is of great interest to understand the impact that expression of the PB1-F2 protein might have in the context of the 2009 pandemic influenza virus, A/California/04/2009 (Cal/09). We have addressed this question by generating two Cal/09 viruses with productive PB1-F2 open reading frames containing either an asparagine at position 66 of PB1-F2 (66N) or a serine at position 66 (66S): this N66S change has previously been shown to be associated with increased virulence in mice. We used these viruses to investigate the effect on virulence conferred by expression of the 66N or the 66S PB1-F2 protein in both in vitro and in vivo systems. Our results show enhanced replication of the 66S virus in A549 cells, while studies of BALB/c and DBA/2 mice and ferrets revealed no significant differences in symptoms of infection with wild-type Cal/09 versus the 66N or 66S virus variant. Also, coinfection of mice with Streptococcus pneumoniae and the different viruses (recombinant wild-type [rWT] Cal/09 and the 66N and 66S viruses) did not result in significant differences in mortality. Mice infected with either PB1-F2-expressing virus did demonstrate altered protein levels of proinflammatory cytokines; differences were observed to be greater in infection caused by the 66S virus. In summary, our study demonstrates that PB1-F2 expression by the Cal/09 virus modulates the immune response to infection while having a minimal effect on virus virulence in two mammalian models.
Efficient techniques for transition testing

Scan-based transition tests are added to improve the detection of speed failures in sequential circuits. Empirical data suggests that both data volume and application time will increase dramatically for such transition testing. Techniques to address the above problem for a class of transition tests, called enhanced transition tests, are proposed in this article.The first technique, which combines the proposed transition test chains with the ATE repeat capability, reduces test data volume by 46.5&percent; when compared with transition tests computed by a commercial transition test ATPG tool. However, the test application time may sometimes increase. To address the test time issue, a new DFT technique, Exchange Scan, is proposed. Exchange scan reduces both data volume and application time by 46.5&percent;. These techniques rely on the use of hold-scan cells and highlight the effectiveness of hold-scan design to address test time and test data volume issues. In addition, we address the problem of yield loss due to incidental overtesting of functionally-untestable transition faults, and we formulate an efficient adjustment to the algorithm to keep the overtest ratio low. Our experimental results show that up to 14.5&percent; reduction in overtest ratio can be achieved, with an average overtest reduction of 4.68&percent;.
Effects of 5-alpha reductase inhibitors on erectile function, sexual desire and ejaculation

Introduction: Treatment with 5-alpha reductase inhibitors (5ARI) is commonly utilized for the treatment of benign prostatic hyperplasia (BPH). The true prevalence of sexual side effects with 5ARI treatment is currently unknown. Areas covered: The current article reviews the reported adverse effects of 5ARI in regard to erectile function, sexual desire and ejaculation. A PubMed search was performed of all articles from 1990 to present, which reported any sexual side effects with finasteride or dutasteride. Preference was given to more recent and human studies where available. Expert opinion: Clinical trials with 5ARI report prevalence rates of de novo erectile dysfunction of 5 – 9%. Decreased circulating dihydrotestosterone (DHT) resulting from 5ARI use is associated with diminished sexual desire and/or orgasm. The presence of adverse sexual effects is associated with decreased self-esteem, quality of life and ability to maintain an intimate relationship. Inhibition of 5ARI additionally influences progesterone and deoxycorticosterone levels and may alter psychological functions, including increased depression, melancholy and loss of general well being. Ejaculatory dysfunction has not been well studied in patients using 5ARI. Patients receiving therapy with 5ARI should be counseled as to potential sexual and psychological adverse effects. Future clinical studies are needed to further investigate the sexual side effects associated with this class of drugs.
Periodic boundary conditions in ab initio calculations.

The convergence of the electrostatic energy in calculations using periodic boundary conditions is considered in the context of periodic solids and localized aperiodic systems in the gas and condensed phases. Conditions for the absolute convergence of the total energy in periodic boundary conditions are obtained, and their implications for calculations of the properties of polarized solids under the zero-field assumption are discussed. For aperiodic systems the exact electrostatic energy functional in periodic boundary conditions is obtained. The convergence in such systems is considered in the limit of large supercells, where, in the gas phase, the computational effort is proportional to the volume. It is shown that for neutral localized aperiodic systems in either the gas or condensed phases, the energy can always be made to converge as O(${\mathit{L}}^{\mathrm{\ensuremath{-}}5}$) where L is the linear dimension of the supercell. For charged systems, convergence at this rate can be achieved after adding correction terms to the energy to account for spurious interactions induced by the periodic boundary conditions. These terms are derived exactly for the gas phase and heuristically for the condensed phase.
Understanding interference and carrier sensing in wireless mesh networks

Wireless mesh networks aim to provide high-speed Internet service without costly network infrastructure deployment and maintenance. The main obstacle in achieving high-capacity wireless mesh networks is interference between the mesh links. In this article, we analyze the carrier sensing and interference relations between two wireless links and measure the impact of these relations on link capacity on an indoor 802.11a mesh network testbed. We show that asymmetric carrier sensing and/or interference relations commonly exist in wireless mesh networks, and we study their impact on the link capacity and fair-channel access. In addition, we investigate the effect of traffic rate on link capacity in the presence of interference.
Species Barrier to RNA Recognition Overcome with Nonspecific RNA Binding Domains*

We show here that nonspecific RNA-protein interactions can significantly enhance the biological activity of an essential RNA·protein complex. Bacterial glutaminyl-tRNA synthetase poorly aminoacylates yeast tRNA and, as a consequence, cannot rescue a knockout allele of the gene for the yeast homologue. In contrast to the bacterial protein, the yeast enzyme has an extra appended domain at the N terminus. Previously, we showed that fusion of this yeast-specific domain to the bacterial protein enabled it to function as a yeast enzyme in vivo and in vitro. We suggested that the novel yeast-specific domain contributed to RNA interactions in a way that compensated for the poor fit between the yeast tRNA and bacterial enzyme. Here we establish that the novel appended domain by itself binds nonspecifically to different RNA structures. In addition, we show that fusion of an unrelated yeast protein, Arc1p, to the bacterial enzyme also converts it into a functional yeast enzymein vivo and in vitro. A small C-terminal segment of Arc1p is necessary and sufficient for this conversion. This segment was shown by others to have nonspecific tRNA binding properties. Thus, nonspecific RNA binding interactions in general can compensate for barriers to formation of a specific and essential RNA·protein complex.
Design Pattern Recovery Based on Source Code Analysis with Fuzzy Logic

Program comprehension is one of the most difficult parts in computer science. At the latest, the turn of the year 1999 has shown that program comprehension and tool supported reverse engineering attained more and more attention. Design patterns, especially the famous gamma-patterns [GHJV95], support the forward-engineering process of software development. Since the gamma-patterns are an analysis product of various software systems, they are a result of a reverse engineering process. Our idea is to recover design patterns from source code to support a comprehension process. Therefore, we introduce a flexible definition of patterns consisting sub-patterns. We allow that patterns inherit from other patterns and we use the polymorphism concept to at least reduce the number of pattern definitions. We propose to use inheritance for design variants and fuzzy logic for implementation variants of a pattern. We discuss advantages and disadvantages of the two definition possibilities and present an execution mechanism to recover patterns in source code. 1 INTRODUCTION Computer science has survived the largest software update problem since its birth, namely the year two thousand (y2k) problem. Several billion lines of code were investigated in order to ensure the correct functionality of the systems. But even experts were afraid of the turn of the year 1999 because they did not know exactly if their solutions work in all cases. However, the y2k problem was mainly a product of a casual chain of human made decisions over decades of developing and enhancing a system. Decisions made during the development depend on various reasons. For example limited system resources, or a contract with a hard-deadline, or there are currently no developers available. In addition, developers have certain personal programming styles, e.g.
TFP Information and Communications Technology as a General Purpose Technology : Evidence from U . S . Industry Data *

After the mid-1990s, both labor productivity and total factor productivity (TFP) accelerated in the United States. A large body of work has explored the sources and breadth of the U.S. acceleration. Much of this research focuses on the role of information and communications technology (ICT). In this paper, we undertake two tasks. First, we discuss industry-level TFP growth for data from 1987 to 2004. TFP Information and Communications Technology as a General Purpose Technology: Evidence from U.S. Industry Data*
Model-based speed identification for induction Machines in the whole operating range

A speed observer for induction machines without rotational transducers is presented. In contrast to known adaptive observer strategies, the proposed scheme uses-beside the conventional current difference-its integral and a new pair of stretch-turn operators not only to avoid the known instability region at braking but to obtain furthermore a constant gain. To ensure operation with very low stator frequencies, an elimination of parasitic dc components is presented additionally. Characteristics are explained and verified by measurements.
Dynamic response optimization for interleaved boost PFC converter with improved dual feedforward control

To reduce the current loop reference distortion in traditional average current control and total harmonic distortion of line current, this paper employs improved average current control (IACC) of Boost PFC, in which a digital-generated unit sinusoidal half-wave (USHW) is introduced as current loop sinusoidal reference. Aimed at generating USHW with DSP's enhanced capture module correctly and conveniently, a fault-tolerant algorithm is proposed. Based on IACC, an improved dual feedforward control (IDFC) including input and load feedforward is proposed to optimize dynamic response. Peak voltage prediction is used to further improve IDFC's performance. Load and input detection are also introduced to enable IDFC only when load or input is in transient process, which significantly reduces calculation cycles and prevents second-order harmonic from being introduced into the control loop by IDFC in stable state. As a result, ability of suppressing input and output disturbances and rate of phase-shedding are promoted. The proposed control strategy is verified on a 1.3kW prototype.