Miracle-dz/UniFAR-FTUs huggingface dataset:
Accurate Figure Flying with a Quadrocopter Using Onboard Visual and Inertial Sensing

We present an approach that enables a low-cost quadrocopter to accurately fly various figures using vision as main sensor modality. Our approach consists of three components: a monocular SLAM system, an extended Kalman filter for data fusion and state estimation and a PID controller to generate steering commands. Our system is able to navigate in previously unknown indoor and outdoor environments at absolute scale without requiring artificial markers or external sensors. Next to a full description of our system, we introduce our scripting language and present several examples of accurate figure flying in the corresponding video submission.
Motion Features from Lip Movement for Person Authentication

This paper describes a new motion based feature extraction technique for speaker identification using orientation estimation in 2D manifolds. The motion is estimated by computing the components of the structure tensor from which normal flows are extracted. By projecting the 3D spatiotemporal data to 2D planes, we obtain projection coefficients which we use to evaluate the 3D orientations of brightness patterns in TV like image sequences. This corresponds to the solutions of simple matrix eigenvalue problems in 2D, affording increased computational efficiency. An implementation based on joint lip movements and speech is presented along with experiments which confirm the theory, exhibiting a recognition rate of 98% on the publicly available XM2VTS database
Development of 23 polymorphic microsatellite loci in invasive silver wattle, Acacia dealbata (Fabaceae)1

Premise of the study: Microsatellite markers were developed for silver wattle, Acacia dealbata (Fabaceae), which is both an ornamental and an invasive weed species. It is native to southeastern Australia and invasive in Europe, Africa, Asia, and the Americas. Methods and Results: The pyrosequencing of a microsatellite-enriched genomic DNA library of A. dealbata produced 33,290 sequences and allowed the isolation of 201 loci with a minimum of seven repeats of microsatellite motifs. Amplification tests led to the setup of two multiplex PCR mixes allowing the amplification of 21 loci. The polymorphism of these markers was evaluated on a sample of 32 individuals collected in southeastern Australia. The number of alleles and the expected heterozygosity varied between two and 11, and between 0.11 and 0.88, respectively. Conclusions: The level of polymorphism of this set of 23 microsatellites is large enough to provide valuable information on the genetic structure and the invasion history of A. dealbata.
Importance Sampling of Runtime Interference

Behavior of open systems is subject to dynamically changing external environment. Runtime monitoring and checking methods are employed to detect interference of functional features in these open systems. Such checking usually has a large impact on the runtime performance. The overhead of checking is unavoidable for fatal anomalies. For less severe anomalies, the performance penalty is not acceptable if the occurrence rate is very small. This paper proposes a new method of estimating the occurrence rate of rare events at runtime with the importance sampling. It is the first report of applying the method to running systems, instead of using discrete simulation models or design models.
Aptamer-Based Analysis: A Promising Alternative for Food Safety Control

Ensuring food safety is nowadays a top priority of authorities and professional players in the food supply chain. One of the key challenges to determine the safety of food and guarantee a high level of consumer protection is the availability of fast, sensitive and reliable analytical methods to identify specific hazards associated to food before they become a health problem. The limitations of existing methods have encouraged the development of new technologies, among them biosensors. Success in biosensor design depends largely on the development of novel receptors with enhanced affinity to the target, while being stable and economical. Aptamers fulfill these characteristics, and thus have surfaced as promising alternatives to natural receptors. This Review describes analytical strategies developed so far using aptamers for the control of pathogens, allergens, adulterants, toxins and other forbidden contaminants to ensure food safety. The main progresses to date are presented, highlighting potential prospects for the future.
Tomography of the low excitation planetary nebula NGC 40

Spatially resolved, long-slit echellograms at different position angles of the bright, low excitation planetary nebula NGC 40 indicate that, the higher is the gas excitation, the faster is the radial motion, thus confirming the overturn of the Wilson law already suggested by Sabbadin and Hamzaoglu (1982). New reduction procedures, giving the radial trends of the electron density and of the ionic and chemical abundances, were applied to NGC 40; they show that: - the radial matter distribution has a sharp ``bell'' profile with peaks up to 4000 cm-3; - the ionization structure is peculiar, indicating the presence of chemical composition gradients within the nebula: the innermost regions, hydrogen depleted, are essentially constituted of photospheric material ejected at high velocity by the WC8 nucleus. Moreover, detailed H+, O++ and N+ tomographic maps, giving the spatial ionic distributions at four position angles, are presented and discussed within the interacting winds evolutionary model.
Perfectly secure message transmission

The problem of perfectly secure communication in a general network in which processors and communication lines may be faulty is studied. Lower bounds are obtained on the connectivity required for successful secure communication. Efficient algorithms that operate with this connectivity and rely on no complexity theoretic assumptions are derived. These are the first algorithms for secure communication in a general network to achieve simultaneously the goals of perfect secrecy, perfect resiliency, and a worst case time which is linear in the diameter of the network. <<ETX>>
The measurement of serum transferrin by iron-binding capacity

Two criteria which ought to be satisfied by an acceptable method for the estimation of serum transferrin by iron-binding capacity are enunciated. A screening procedure is described which involves the sequential quantitative use of ion exchange and gel filtration. Its use in testing the extent to which two published methods fulfil the recommended criteria is described. Both methods give results for total iron-binding capacity which are 1-10% high because of the inclusion of non-transferrin iron.
Different Mechanisms Are Involved in the Transcriptional Activation by Yeast Heat Shock Transcription Factor through Two Different Types of Heat Shock Elements*

The hydrophobic repeat is a conserved structural motif of eukaryotic heat shock transcription factor (HSF) that enables HSF to form a homotrimer. Homotrimeric HSF binds to heat shock elements (HSEs) consisting of three inverted repeats of the sequence nGAAn. Sequences consisting of four or more nGAAn units are bound cooperatively by two HSF trimers. We show that in Saccharomyces cerevisiae cells oligomerization-defective Hsf1 is not able to bind HSEs with three units and is not extensively phosphorylated in response to stress; it is therefore unable to activate genes containing this type of HSE. Several lines of evidence indicate that oligomerization is a prerequisite for stress-induced hyperphosphorylation of Hsf1. In contrast, oligomerization and hyperphosphorylation are not necessary for gene activation via HSEs with four units. Intragenic suppressor screening of oligomerization-defective hsf1 showed that an interface between adjacent DNA-binding domains is important for the binding of Hsf1 to the HSE. We suggest that Saccharomyces cerevisiae HSEs with different structures are regulated differently; HSEs with three units require Hsf1 to be both oligomerized and hyperphosphorylated, whereas HSEs with four or more units do not require either.
Implementation of Finite-State Model Predictive Control for Commutation Torque Ripple Minimization of Permanent-Magnet Brushless DC Motor

A strategy based on finite-state model predictive control is proposed for permanent-magnet brushless dc motors (BLDCMs) to reduce commutation torque ripple. The main contribution is a detailed description of the algorithm design process applied to BLDCM for commutation torque ripple minimization, which points out that the optimal conduction status is directly selected and the exact duration of each conduction status is not required in control process. This method proposes a unified approach for suppressing commutation torque ripple over the entire speed range without distinguishing high speed and low speed and overcomes the difficulties of commutated-phase-current control, avoiding complex current controllers or modulation models. A discrete-time noncommutated-phase-current predictive model of BLDCM during commutation is established. According to the predefined cost function, the optimal switching state is directly selected and applied during the next sampling period so as to make the slope rates of incoming and outgoing phase currents match in the course of commutation, thus ensuring the minimization of commutation torque ripple. The simulation and experiment results show that the proposed method can effectively reduce commutation torque ripple within the whole speed range and achieve good performance in minimizing commutation torque ripple in both dynamic and steady states.
An Interface for Visualizing Feature Space in Image Retrieval

We have developed a visualization method and an interface for image retrieval. In our method, principal component analysis is dynamically applied to the retrieved images in order to determine their eigenspace and the retrieved images are displayed in that space. We also experimentally evaluated our method from a statistical point of view. And we found that our method effectively decentralizes the retrieved images over the two-dimensional space.
Modeling Approaches for Functional Verification of RF-SoCs: Limits and Future Requirements

Since the design and realization of a complex system on a chip is error prone, functional verification should have been a main task in today's design flows but is still underestimated. This paper gives an overview of current modeling approaches to handle functional verification of a design on the top level, prior to tape out. The problems that arise from the different approaches such as baseband modeling and event-driven modeling are explained, and the resulting effects on the simulated system specifications are presented. The necessity of the approaches for future systems, which are not simulatable with current methods, is presented, and the needed extensions of the hardware description languages and simulators are proposed.
Gender Differences and Stereotypes in the Beauty Contest

Recent literature has emphasized that individuals display different depths of reasoning when playing games. In this paper, we explore gender differences in strategic sophistication and study whether these differences are endogenous. We report results from two different experiments employing the beauty contest. In the first, large study, we show that females react very strongly to incentives to the extent that gender differences disappear when a monetary prize is awarded. In the second study, we use a within subject design to analyze how depth of reasoning varies with gender priming and the gender composition of the set of players. We corroborate that females display higher levels of sophistication and even overtake males when incentives are provided and gender is primed. On the other hand, males who believe that females are better in the game display higher sophistication when playing against females.
OPA1 processing controls mitochondrial fusion and is regulated by mRNA splicing, membrane potential, and Yme1L

OPA1, a dynamin-related guanosine triphosphatase mutated in dominant optic atrophy, is required for the fusion of mitochondria. Proteolytic cleavage by the mitochondrial processing peptidase generates long isoforms from eight messenger RNA (mRNA) splice forms, whereas further cleavages at protease sites S1 and S2 generate short forms. Using OPA1-null cells, we developed a cellular system to study how individual OPA1 splice forms function in mitochondrial fusion. Only mRNA splice forms that generate a long isoform in addition to one or more short isoforms support substantial mitochondrial fusion activity. On their own, long and short OPA1 isoforms have little activity, but, when coexpressed, they functionally complement each other. Loss of mitochondrial membrane potential destabilizes the long isoforms and enhances the cleavage of OPA1 at S1 but not S2. Cleavage at S2 is regulated by the i-AAA protease Yme1L. Our results suggest that mammalian cells have multiple pathways to control mitochondrial fusion through regulation of the spectrum of OPA1 isoforms.
In ̄ uence of dietary intake and lasalocid on serum hormones and metabolites and visceral organ growth and morphology in wether lambs

Twenty-four black face, crossbred wether lambs (32.4 6.1 kg) were assigned to one of four treatments arranged in a 2 2 factorial. Individually penned wethers were fed a pelleted total mixed diet at low intake (LI; 60% of ad libitum) or high intake (HI; 95% of ad libitum); diets contained either low lasalocid (LL; 0 mg per lamb daily) or high lasalocid (HL; 40 mg per lamb daily). Measurements of serum hormones and metabolites were taken during two 3-day collection periods following a 14-day adjustment to treatments. After 42±45 day on treatments, wethers were slaughtered and weight (wt) of liver and intestinal segments were recorded and tissues subsampled. Serum insulin and glucose concentrations were increased (p < 0.10) in lambs on HI compared with those on LI. Total ruminal VFA concentration (millimolar) was increased (p < 0.10) with greater for HI vs LI. Compared with LI, HI had greater (p < 0.10) ®nal BW, eviscerated BW (EBW), and total visceral wt; colon fresh, dry, and dry fat-free wt; cecum dry wt; liver fresh wt, dry wt and dry fat-free wt, liver RNA : DNA ratio, RNA content, and protein content; and duodenum RNA content. Liver DNA concentration was decreased (p < 0.10) in HI vs LI. Neither labeling index nor morphology of intestinal segments were in ̄uenced (p > 0.10) by intake or lasalocid. Lasalocid had little in ̄uence on metabolic hormones or growth and development of visceral organs. These data indicate that high intake increased serum insulin and glucose concentrations, liver wt and cell size. # 2000 Elsevier Science B.V. All rights reserved.
Wideband mmWave CML static divider in 65nm SOI CMOS technology

A wideband millimeter-wave (mmWave) CML static divider fabricated in 65 nm SOI CMOS technology is presented. The mmWave system realization trend and engagement in sub-100 nm CMOS technologies are summarized. CML static dividerpsilas circuit analysis, sensitivity curve, and simulations are explored. The input-locking hysteresis and divider DC bias tuning are employed to extend the divider operation range. The divider performance measurements are presented with hysteresis-assisted gain and figure-of-merits. A scalable statistical estimation is proposed, and it is validated with a full 300 mm wafer measurements. The divider exhibits wideband mmWave performance to overcome the process variability in sub-100 nm CMOS processes.
Self-Aspects, Perceived Social Support, Gender, and Willingness to Seek Psychological Help

This article examines the role of self-aspects, perceived social support, and gender on psychological help-seeking attitudes of Turkish university students. Women scored higher on relational and individual self-aspects, as well as perceived family support. Hierarchical multiple regression analysis shows that positive help-seeking attitudes are facilitated by individual self, relational self, perceived support from parents, and perceived support from friends. Women had more positive attitudes toward seeking psychological help than men. Findings are discussed considering the Turkish cultural context.
Electric Motor Drive with Inverter Output Filter

The paper focuses on some aspects of control and estimation in electric drives with inverter output filters. The filters are used in some industrial drives with pulse width modulated (PWM) inverters. They smoothes the motor supply voltage and current so nearly sinusoidal shapes are obtained. The filters can also limit the bearing current and shaft voltages. Because of the voltage drop and phase shift, the motor voltages and currents differ from the inverter output. This fact can seriously complicate the drive operation due to the problems with the control and estimation process – especially in speed sensorless drives. To solve those problems the filter model should be taken into account in the control and estimation algorithms. In this paper a sensorless solution for induction motor (IM) drives is proposed together with inverter output filter. A short description and discussion of the schemes is given. Simulation and experimental results validate the proposed solution.
Organic electrochemical transistor incorporating anionogel as solid state electrolyte for lactate sensing

Room temperature Ionic liquids (RTILs) have evolved as a new type of solvent for biocatalysis, mainly due to their unique and tunable physical properties. [1] In addition, within the family of organic semiconductor-based sensors, organic electrochemical transistors (OECTs) have attracted particular interest. [2] Here, we present a simple and robust biosensor, based on a OECT, capable of measuring lactic acid using a gel-like polymeric materials that endow RTIL (ionogel)[3] as solid-state electrolyte both to immobilise the enzyme and to serve as a supporting electrolyte. [4] This represents the first step towards the achievement of a fast, flexible, miniaturised and cheap way of measuring lactate concentration in sweat.
NADPH oxidase AtrbohD and AtrbohF genes function in ROS‐dependent ABA signaling in Arabidopsis

Reactive oxygen species (ROS) have been proposed to function as second messengers in abscisic acid (ABA) signaling in guard cells. However, the question whether ROS production is indeed required for ABA signal transduction in vivo has not yet been addressed, and the molecular mechanisms mediating ROS production during ABA signaling remain unknown. Here, we report identification of two partially redundant Arabidopsis guard cell‐expressed NADPH oxidase catalytic subunit genes, AtrbohD and AtrbohF, in which gene disruption impairs ABA signaling. atrbohD/F double mutations impair ABA‐induced stomatal closing, ABA promotion of ROS production, ABA‐induced cytosolic Ca2+ increases and ABA‐ activation of plasma membrane Ca2+‐permeable channels in guard cells. Exogenous H2O2 rescues both Ca2+ channel activation and stomatal closing in atrbohD/F. ABA inhibition of seed germination and root elongation are impaired in atrbohD/F, suggesting more general roles for ROS and NADPH oxidases in ABA signaling. These data provide direct molecular genetic and cell biological evidence that ROS are rate‐limiting second messengers in ABA signaling, and that the AtrbohD and AtrbohF NADPH oxidases function in guard cell ABA signal transduction.
A Direct Approach to Multi-class Boosting and Extensions

Boosting methods combine a set of moderately accurate weaklearners to form a highly accurate predictor. Despite the practical importance of multi-class boosting, it has received far less attention than its binary counterpart. In this work, we propose a fully-corrective multi-class boosting formulation which directly solves the multi-class problem without dividing it into multiple binary classification problems. In contrast, most previous multi-class boosting algorithms decompose a multi-boost problem into multiple binary boosting problems. By explicitly deriving the Lagrange dual of the primal optimization problem, we are able to construct a column generation-based fully-corrective approach to boosting which directly optimizes multi-class classification performance. The new approach not only updates all weak learners' coefficients at every iteration, but does so in a manner flexible enough to accommodate various loss functions and regularizations. For example, it enables us to introduce structural sparsity through mixed-norm regularization to promote group sparsity and feature sharing. Boosting with shared features is particularly beneficial in complex prediction problems where features can be expensive to compute. Our experiments on various data sets demonstrate that our direct multi-class boosting generalizes as well as, or better than, a range of competing multi-class boosting methods. The end result is a highly effective and compact ensemble classifier which can be trained in a distributed fashion.
Where Deer Roam: Chronic Yet Acute Site Exposures Preclude Ecological Risk Assessment

Global positioning system (GPS) technology has made possible the detailed tracking of the spatial movements of wildlife. Using GPS tracking collars placed on female white‐tailed deer (Odocoileus virginianus) over a protracted period, we illustrate that this species is spatially irrelevant for consideration in ecological risk assessments (ERAs) for commonly assessed contaminated sites. Specifically, deer movements do not allow for a sufficiency of chemical exposures to occur such that toxicological endpoints would be triggered. Deer are spatially irrelevant not only because their home ranges and overall utilized areas dwarf prototypical hazardous waste sites. They are also inappropriate for assessment because they only minimally contact reasonably sized preferred locations, this while demonstrating a confounding high degree of site affinity for them. Our spatial movements analysis suggests that deer introduce the ERA novelty of a species displaying elements of both chronic and acute site exposure. We further suggest that other large commonly assessed high‐profile mammals could also be found to be spatially irrelevant for ERAs were they to submit to the GPS tracking and subsequent data analysis we performed for the deer. Recognizing that certain receptors need not be considered in ERAs can help to simplify the ERA process.