Miracle-dz/UniFAR-FTUs huggingface dataset:
Asymptotically achievable error probabilities for multiple hypothesis testing

The region of achievable error probabilities for k-ary hypothesis tests is studied in the asymptotic setting with n independent and identically distributed observations. We identify a k2 - k - 1 dimensional parametric family of optimal (non-dominated) tests and relate it to a family of Bayes tests whose loss function depends exponentially on n. We asymptotically characterize the conditional error probabilities for these tests within O(1) as n → ∞, using strong large deviations analysis.
An imaging K-band survey - I: The catalogue, star and galaxy counts

We present results from a large-area (552 arcmin 2 ) imaging K-band survey of faint objects. The survey is a high galactic latitude, blank-field sample to a 5σ limit of K≃17.3. The methods for constructing the infrared survey are described, including flat-fielding, astrometry, mosaicking and photometry. Also described are optical CCD observations which cover the survey to provide optical-infrared colours of almost all the objects in the sample. Star-galaxy discrimination is performed, and the results are used to derive the infrared star and galaxy counts. K-band no-evolution galaxy-count models are constructed and compared with the observational data. In the infrared, there is no counterpart for the large excess of faint galaxies over the no-evolution model seen in optical counts
The Relationship Between Two Commutators

We clarify the relationship between the linear commutator and the ordinary commutator by showing that in any variety satisfying a nontrivial idempotent Mal'cev condition the linear commutator is definable in terms of the centralizer relation. We derive from this that abelian algebras are quasi-affine in such varieties. We refine this by showing that if A is an abelian algebra and (A) satisfies an idempotent Mal'cev condition which fails to hold in the variety of semilattices, then A is affine.
Coordinated Multi-Cell Transmission for Distributed Antenna Systems with Partial CSIT

In this letter, a multi-cell distributed antenna system (DAS) with multiple users served via linear beamforming in each cell is considered. We focus on joint beamformer optimization (JBO) with the target of system weighted sum capacity maximization based on only partial channel state information at the transmitter (CSIT), which includes instantaneous intra-cell and large-scale inter-cell CSIT. After the formulation of a non-convex JBO problem, an algorithm is proposed to find the globally optimal beamformers based on monotonic optimization and the bisection method. Simulation results are provided to show the superiority of the proposed algorithm and the noticeable performance gain of the JBO based on partial CSIT. The proposed algorithm can be used as a benchmark for low-complexity JBO scheme design for practical applications.
Land use, water quality, and the history of coral assemblages at Bocas del Toro, Panamá

As human activities have intensified along tropical coastlines, the anthropic influ- ence on adjacent coral reefs has become increasingly deleterious. Changes in land use generally degrade water quality, but controversy persists over the degree to which reduced water quality affects the ecology of reef communities. We cored reef frameworks at 4 sites in Bahia Almirante, a semi-enclosed, coastal lagoon in northwestern Panama, to explore the historical relationship between turnover in coral-species dominance and terrigenous input. The coral constituents of the cores were analyzed in tandem with lignin-phenol concentrations. Chronologies and sedimenta- tion rates were determined from 210 Pb profiles in the cores. Increased terrigenous input from agri- cultural development and expansion of the human population degraded water quality in Bahia Almirante over the last century. Documented episodes of heavy rainfall after 1970 accelerated a phase shift from dominance by branching corals of the genus Porites to dominance by the lettuce coral Agaricia tenuifolia at water depths of 5 to 10 m by increasing runoff, increasing sediment and nutrient loads, and lowering light levels. The phase shift in coral dominance was unprece- dented on a millennial time scale and the degree to which it occurred varied along a gradient of terrigenous input to the Bahia.
Genotype and Gene Expression Associations with Immune Function in Drosophila

It is now well established that natural populations of Drosophila melanogaster harbor substantial genetic variation associated with physiological measures of immune function. In no case, however, have intermediate measures of immune function, such as transcriptional activity of immune-related genes, been tested as mediators of phenotypic variation in immunity. In this study, we measured bacterial load sustained after infection of D. melanogaster with Serratia marcescens, Providencia rettgeri, Enterococcus faecalis, and Lactococcus lactis in a panel of 94 third-chromosome substitution lines. We also measured transcriptional levels of 329 immune-related genes eight hours after infection with E. faecalis and S. marcescens in lines from the phenotypic tails of the test panel. We genotyped the substitution lines at 137 polymorphic markers distributed across 25 genes in order to test for statistical associations among genotype, bacterial load, and transcriptional dynamics. We find that genetic polymorphisms in the pathogen recognition genes (and particularly in PGRP-LC, GNBP1, and GNBP2) are most significantly associated with variation in bacterial load. We also find that overall transcriptional induction of effector proteins is a significant predictor of bacterial load after infection with E. faecalis, and that a marker upstream of the recognition gene PGRP-SD is statistically associated with variation in both bacterial load and transcriptional induction of effector proteins. These results show that polymorphism in genes near the top of the immune system signaling cascade can have a disproportionate effect on organismal phenotype due to the amplification of minor effects through the cascade.
Can a Wi-Fi WLAN support a first person shooter?

In corporate and commercial environments, the deployment of a set of coordinated Wi-Fi APs is becoming a common solution to provide Internet coverage to moving users. In these scenarios, real-time services as online games can also be present. This paper presents a set of experiments developed in a test scenario where an end device moves between different APs while generating game traffic. A WLAN solution based on virtual APs is used, in order to make the handoffs transparent for Layer 3. The results show that it is possible to maintain an acceptable level of subjective quality during the handoff. At the same time, it is set clear that the fact of having a gamer in an AP could be taken into account by radio resource management algorithms, in order to provide a better quality.
A robotic approach for assessing motor adaptation capability in mild Multiple Sclerosis patients

A prerequisite for rehabilitation is that patients preserve their ability to adapt to novel dynamic environments, an ability related to the cerebellar system. In this study, we use a robot manipulandum to test the ability of Multiple Sclerosis patients with subclinical sensorimotor symptoms to adapt to a speed-dependent curl force field. The study was motivated by a previous observation that these patients indeed display subtle symptoms of incoordination, that can be detected from movement analysis and are suggestive of mild cerebellar impairment. Moreover, a recent study demonstrated that subjects with cerebellar degeneration can no longer adapt to force fields. We found that mild MS subjects do indeed display incoordination problems, that are made even more evident by the task requirement of controlling the dynamics of the manipulandum. However, their ability to adapt to the force field does not significantly differ from controls. These findings suggest that these subjects may benefit from robot-assisted therapy that is specifically aimed at impaired visuomotor coordination
Sketch-based image retrieval on mobile devices using compact hash bits

The advent of touch panels in mobile devices has provided a good platform for mobile sketch search. However, most of the previous sketch image retrieval systems usually adopt an inverted index structure on large-scale image database, which is formidable to be operated in the limited memory of mobile devices. In this paper, we propose a novel approach to address these challenges. First, we effectively utilize distance transform (DT) features to bridge the gap between query sketches and natural images. Then these high-dimensional DT features are further projected to more compact binary hash bits. The experimental results show that our method achieves very competitive retrieval performance with MindFinder approach [3] but only requires much less memory storage (e.g., our method only requires 3% of total memory storage of MindFinder in 2.1 million images). Due to its low consumption of memory, the whole system can independently operate on the mobile devices.
Nonnative English-Speaking Professors’ Experiences of English-Medium Instruction and Their Perceived Roles of the Local Language

ABSTRACT This study examines the experiences of nonnative English-speaking faculty instructors teaching subject courses in English-medium instruction (EMI) at a Korean university and reveals the perceived roles of the local language in the context. The data consist of questionnaire responses of 91 Korean professors and qualitative interviews with 15 who had answered the questionnaires. Findings showed that the participants perceived the local students’ performances and the amount of interaction between local and international students negatively. Their perceived need for the local, Korean language correlated negatively with the interaction between Korean and international students. In the qualitative interviews, the local language in the EMI context, despite the full-fledged EMI policy being implemented top down, was represented as crucial for social and instructional purposes and for their own time management. These perceived roles were found to be associated with their multiple identities, as instructors and researchers, required and practiced in the context. The findings are discussed to provide information on how to support an EMI policy for internationalization of higher education, especially in non-English-speaking societies.
Online automatic process control using observable noise factors for discrete-part manufacturing

Robust Parameter Design (RPD) has been used as the primary technique to reduce process and product variability. The offline choice of appropriate control factor settings allows RPD to ensure that noise factors have a minimum influence on responses. In this article, an alternative methodology of automatic process control is proposed, that is, controllable factors are adjusted online based on in-process observations of noise factors. A cautious control strategy, which explicitly considers the observation uncertainty in adjusting the settings of controllable factors, makes the system performance consistently more favorable when compared with the certainty equivalence control strategy and RPD. On the other hand, RPD can be considered a special case of automatic control laws using a constant control setting during production. A case study of a sheet-metal stamping process demonstrates that the implementation of the proposed method in an industrial facility can lead to significant quality improvements.
Comparative validity of vitamin C and carotenoids as indicators of fruit and vegetable intake: a systematic review and meta-analysis of randomised controlled trials

Abstract Circulating vitamin C and carotenoids are used as biomarkers of fruit and vegetable intake in research, but their comparative validity has never been meta-analysed. PubMed, EMBASE, CENTRAL, CINAHL and Web of Science were systematically searched up to December 2013 for randomised trials of different amounts of fruit and vegetable provision on changes in blood concentrations of carotenoids or vitamin C. Reporting followed PRISMA guidelines. Evidence quality was assessed using the GRADE system. Random effects meta-analysis combined estimates and meta-regression tested for sub-group differences. In all, nineteen fruit and vegetable trials (n 1382) measured at least one biomarker, of which nine (n 667) included five common carotenoids and vitamin C. Evidence quality was low and between-trial heterogeneity (I 2) ranged from 74 % for vitamin C to 94 % for α-carotene. Groups provided with more fruit and vegetables had increased blood concentrations of vitamin C, α-carotene, β-carotene, β-cryptoxanthin and lutein but not lycopene. However, no clear dose–response effect was observed. Vitamin C showed the largest between-group difference in standardised mean change from the pre-intervention to the post-intervention period (smd 0·94; 95 % CI 0·66, 1·22), followed by lutein (smd 0·70; 95 % CI 0·37, 1·03) and α-carotene (smd 0·63; 95 % CI 0·25, 1·01), but all CI were overlapping, suggesting that none of the biomarkers responded more than the others. Therefore, until further evidence identifies a particular biomarker to be superior, group-level compliance to fruit and vegetable interventions can be indicated equally well by vitamin C or a range of carotenoids. High heterogeneity and a lack of dose–response suggest that individual-level biomarker responses to fruit and vegetables are highly variable.
School perspectives on bullying and preventative strategies: An exploratory study

Despite the continual rise in research into school bullying worldwide, comparatively little has been reported on actions that have been taken by schools to counter the problem. This article reports on a small-scale, exploratory study that was designed to provide an account of strategies that were being undertaken in 25 Australian government schools catering for mainstream students. It examines the reported use of both proactive and reactive strategies, and their frequency and perceived effectiveness. It reveals a wide diversity of practices. Strengths and limitations of teacher-directed activities are described, comparisons are made with anti-bullying strategies employed outside Australia, and suggestions are made to enhance the effectiveness of anti-bullying practices.
Chromospherically Active Stars in the Galactic Bulge

We present the results from the discovery and study of ∼3000 chromospherically active giant and subgiant stars toward the Galactic bulge. We find that these stars are predominantly RS CVn binaries with rotation periods between 10 and 100 days. We discover that the average rotational period of these stars decreases with their distance from the Galactic plane. We find that the primary stars in the RS CVn systems are predominantly first-ascent giants. Our research also suggests that if these stars have spot cycles like the Sun, then the cycle period must be longer than 10 yr on average. We confirm that the amplitude of the spot-induced modulations observed in the light curves of these objects is generally larger at minimum light than at maximum. Furthermore, we confirm that the amplitudes of the modulations due to stellar spots generally increase as the observed change in average brightness increases. We find no evidence for a relationship between a chromospherically active star's brightness and its rotational period. However, the average period does increase with color for stars with periods ≲30 days.
Pretreatment multi-biomarker disease activity score and radiographic progression in early RA: results from the SWEFOT trial

Objectives Prediction of radiographic progression (RP) in early rheumatoid arthritis (eRA) would be very useful for optimal choice among available therapies. We evaluated a multi-biomarker disease activity (MBDA) score, based on 12 serum biomarkers as a baseline predictor for 1-year RP in eRA. Methods Baseline disease activity score based on erythrocyte sedimentation rate (DAS28-ESR), disease activity score based on C-reactive protein (DAS28-CRP), CRP, MBDA scores and DAS28-ESR at 3 months were analysed for 235 patients with eRA from the Swedish Farmacotherapy (SWEFOT) clinical trial. RP was defined as an increase in the Van der Heijde-modified Sharp score by more than five points over 1 year. Associations between baseline disease activity measures, the MBDA score, and 1-year RP were evaluated using univariate and multivariate logistic regression, adjusted for potential confounders. Results Among 235 patients with eRA, 5 had low and 29 moderate MBDA scores at baseline. None of the former and only one of the latter group (3.4%) had RP during 1 year, while the proportion of patients with RP among those with high MBDA score was 20.9% (p=0.021). Among patients with low/moderate CRP, moderate DAS28-CRP or moderate DAS28-ESR at baseline, progression occurred in 14%, 15%, 14% and 15%, respectively. MBDA score was an independent predictor of RP as a continuous (OR=1.05, 95% CI 1.02 to 1.08) and dichotomised variable (high versus low/moderate, OR=3.86, 95% CI 1.04 to 14.26). Conclusions In patients with eRA, the MBDA score at baseline was a strong independent predictor of 1-year RP. These results suggest that when choosing initial treatment in eRA the MBDA test may be clinically useful to identify a subgroup of patients at low risk of RP. Trial registration number WHO database at the Karolinska Institute: CT20080004; and clinicaltrials.gov: NCT00764725.
Far-field momentum flux of high-frequency axisymmetric synthetic jets

This study focuses on predicting the far-field momentum flux for axisymmetric synthetic jets, which is an important parameter that characterizes the performance of such jets in flow-control applications. Previous researchers have found that a negative pressure gradient near the jet orifice is responsible for the observed decrease in the momentum flux in the streamwise direction. As a result, prediction of the far field momentum flux of synthetic jets has encountered serious challenges. In this paper, the far-field momentum flux is modeled by calculating the hydrodynamic impulse of the vortical structure formed during one actuation cycle, under the assumption that the jet is fully developed and periodic. In this manner, the complex near-field effect of a synthetic jet is explicitly captured by the interactions between the vortices and the actuator. Furthermore, the impulse of these vortical structures is predicted using only the actuation parameters of the synthetic jet, namely, the stroke length, L, the o.
Stroke volume during mueller maneuver measured by impedance cardiography in patients with mitral regurgitation

We use our bioimpedance monitor to test ability of impedance cardiography method to measure the change of stroke volume during Mueller maneuver in patients with mitral regurgitation. Although the results are reproducible for each subject, the stroke volume rises during maneuver in substantial part of subjects. This contradicts previous findings from other methods.
TITLE Sex Differences in Interaction Style as a Product of Perceived Sex Differences in Competence

Males' and females' interaction styles were observed while they worked in four-person, mixed-sex groups on a discussion task. In some groups, members were only given information about each others' names and gender. Under these conditions, males were perceived higher in competence than females. Further, males were found to engage in a greater amount of active task behavior than females (e.g., giving information, giving opinions), and females exhibited a greater amount of positive social behavior than males (e.g., agreeing, acting friendly). In other groups, members' competency-1sed status as manipulated by providing false feedback that they weLa high or low in overall intellectual and moral aptitude. High status members were then perceived to be more competent than low status ones, and further, high status individuals engaged in more active task and less positive social behavior than low status people. In these conditions, no effects for gender were obtained on perceived competence or on active task or positive social behavior. Correlational analyses supported the idea that the gender differences obtained in interaction when status was not specified were partially a function of inferred sex differences in competence. When direct information concerning members' competence was provided, however, this data apparently blocked the gender-to-competence inference and status alone affected perceived competence and interaction style. (Author) *********************************************************************** * Reproductions supplied by EDRS are the best that can be made * * from the original document. * ***********************************************************************
A novel class of binary zero-correlation zone sequence sets by using a cyclic difference set

The present paper introduces the construction of a binary sequence that has a zero-correlation zone (ZCZ). For the proposed sequence set, the cross-correlation function and the side-lobe of the autocorrelation function are zero for the phase shifts within the zero-correlation zone. The proposed ZCZ sequence set can be generated from an arbitrary binary sequence that has a two-value autocorrelation. In actual applications, the peak of the correlation function for the phase outside of the zero-correlation zone is important. The absolute value of the out-of-phase correlation function of the proposed sequence of length mth is less than or equal to 2m+1(n + 1), which is about half of the power (the inner product) 2m+2n of the sequence. The proposed sequence set can be used in a robust sensor/controller network. With the proposed sequence, we examine the performances of ultrasonic imaging.
Unusual Paraneoplastic Presentation of Cholangiocarcinoma

Introduction. Cutaneous paraneoplastic syndromes are a heterogeneous group of skin manifestations that occur in relation to many known malignancies. Paraneoplastic occurrence of SCLE has been noted but is not commonly reported. SCLE association with cholangiocarcinoma is rare. Case Presentation. A 72-year-old man with a history of extrahepatic stage IV cholangiocarcinoma presented with a pruritic rash. Cholangiocarcinoma had been diagnosed three years earlier and was treated. Five months after interruption of his chemotherapy due to a semiurgent surgery, he presented with explosive onset of a new pruritic rash, arthralgias, and lower extremity edema. Physical exam revealed a scaly erythematous rash on his arms, hands, face, neck, legs, and trunk. It was thick and scaly on sun exposed areas. Skin biopsy revealed vacuolar interface dermatitis. Immunofluorescence revealed IgM positive cytoid bodies scattered along the epidermal basement membrane zone. PET-CT scanning revealed metabolically active recurrent disease in peripancreatic and periportal region with hypermetabolic lymph nodes. Oral steroids and new regimen of chemotherapy were started. Rash improved and steroids were tapered off. Discussion. Paraneoplastic syndromes demonstrate the complex interaction between the immune system and cancer. Treatment resistant SCLE should raise a suspicion for paraneoplastic etiology.