Miracle-dz/UniFAR-FTUs huggingface dataset:
Outage and Capacity Performance Evaluation of Distributed MIMO Systems over a Composite Fading Channel

The exact closed-form expressions regarding the outage probability and capacity of distributed MIMO (DMIMO) systems over a composite fading channel are derived. This is achieved firstly by using a lognormal approximation to a gamma-lognormal distribution when a mobile station (MS) in the cell is in a fixed position, and the so-called maximum ratio transmission/selected combining (MRT-SC) and selected transmission/maximum ratio combining (ST-MRC) schemes are adopted in uplink and downlink, respectively. Then, based on a newly proposed nonuniform MS cell distribution model, which is more consistent with the MS cell hotspot distribution in an actual communication environment, the average outage probability and capacity formulas are further derived. Finally, the accuracy of the approximation method and the rationality of the corresponding theoretical analysis regarding the system performance are proven and illustrated by computer simulations.
Analysts' Incentive and Dispersion Effect

In this paper, we explain the negative relationship between analysts' forecast dispersion and future stock return, commonly known as the dispersion effect, as a result of analysts' incentive of not fully downward revising their earnings forecasts when they possess bad news about the firms they cover. Unlike previous literature, we argue that there is no causality between dispersion and future return; we instead argue that the negative relationship between them arises from the fact that they are both affected by analysts' incentive. Consistent with this conjecture, we find (1) that analysts' incentive simultaneously increases dispersion and induces an upward bias in reported consensus forecasts, (2) that the dispersion effect only exists among firms with bad future earnings, (3) that the dispersion effect disappears once we control for the incentive-induced upward bias in the reported consensus forecast, and (4) that the dispersion effect is stronger among firms with low information uncertainty. The last two findings offer support unique to our analysts' incentive based explanation of the dispersion effect.
Palynology of the Lower Eocene deposits of northwest Jutland, Denmark

Early Eocene spores and pollen assemblages from the uppermost part of the Stolle Klint Clay and the overlying Fur Formation are diverse and well preserved. The terrestrial microflora comprises 42 species of spores and 108 species of pollen and four spores and pollen zones are established i.e. Interpollis velum-Labrapollis globosus, Basopollis atumenscens, Basopollis orthobasalis and Thomsonipollis magnificus zones. The zones are directly correlated to the existing tephrachronology and stratigraphy. The dinoflagellate cysts assemblages are referred to Zones 6 and 7 of Heilmann-Clausen or the upper part of the Apectodinium hyperacanthum and Glaphyrocysta ordinata Interval Biozone of Powell. A marked shift in the terrestrial and marine palynomorph assemblages takes place at the transition between the two oldest spore and pollen zones at c. 1.2 m below ash layer –19b. (Less)
High frequency fault location method for transmission lines based on artificial neural network and genetic algorithm using current signals only

The present transmission systems are rapidly changing principally due to an increasing demand for better utilisation of existing lines resulting in lower transient stability limits, and also due to an increase in the complexity of the networks with small-scale distributed generation being connected into the existing networks. The current protection/fault location techniques are not conducive to such networks. This paper investigates a novel fault location method based on current signals only and utilising Artificial Intelligence technology. Importantly, the robustness and sensitivity of the technique developed is presented through an extensive series of studies and results when applied to complex power networks.
Brief Cerebral Applications of Weak, Physiologically-patterned Magnetic Fields Decrease Psychometric Depression and Increase Frontal Beta Activity in Normal Subjects

Background: Brief (30 min to 60 min) applications of weak, physiologically-patterned magnetic fields have been demonstrated to produce analgesia in rodents and reduction of depression in patients who have sustained Traumatic Brain Injuries (TBI). To discern if the effects from one effective field pattern could be measured by quantitative electroencephalography (QEEG) and reflected in psychometric inferences of depressed mood, normal volunteers were measured. Methods: A total of 22 normal volunteers were exposed for 30 min to sham field conditions or to a burst-firing magnetic field (1 μT) that was applied across the temporal lobes during QEEG measurements. The Profile of Mood Scores short-form (POMS-sf) was administered before and after the exposures and correlations between these scores and bands of QEEG power were completed. Results: The subjects exposed to the burst-firing magnetic field displayed a significant decrease in depression scores compared to those exposed to the sham fields. The treatment effects accommodated about one-quarter of the variance in scores. Like previous studies the other components of the POMS-sf did not differ significantly between treatments. Field exposed subjects displayed significant increases in beta power over the prefrontal regions and left temporoparietal areas the magnitude of which was strongly correlated with the depression mood scores. Conclusion: Brief exposures to weak, physiologically-patterned magnetic fields that can be generated by contemporary computer systems produced reliable changes in QEEG activity and were even reflected in relatively insensitive psychometric indicators in normal individuals. The development of this technology for self-treatment of patients who have sustained TBIs may be a useful adjunctive therapeutic intervention.
Measurement of Complex Permeability Using Short Coaxial Line Reflection Method

This paper describes realization of complex permeability determination for ferrite materials using short coaxial sample holder and vector network analyzer E5071B in frequency range between 300 kHz and 1 GHz. The design of coaxial high frequency sample holder is presented, the principle of measurement and calibration is shown. The extracting of complex permeability from S-parameters is managed based on accomplished formulas, user-friendly program for computer control has been written, and obtained results are explained in detail. In order to verify proposed method, the results of the measurement of NiZn ferrite samples, manufactured by MMG NeoSid, are compared with catalog characteristics.
Braids and the Jones polynomial

An important new invariant of knots and links is the Jones polynomia}, and the subsequent generalized Jones polynomial or two-variable polynomial. We prove inequalities relating the number of strands and the crossing number of a braid with the exponents of the variables in the generalized Jones polynomial which is associated to the link formed from the braid by connecting the bottom ends to the top ends. We also relate an exponent in the polynomial to the number of components of this link. In [J] Vaughan Jones introduced a new polynomial invariant of oriented knots and links in 3-space. Subsequently a number of researchers (Freyd and Yetter, Hoste, Lickorish and Millett, and Ocneanu; see [FYHLMO]) independently realized that thlis could be generalized to produce an invariant which is a Laurent polynomial of two variables and which specializes to give both the invariant of [J] and the classical Alexander polynomial (see [R]). More precisely, there is a function P from isotopy classes of oriented links to Z[x,x-1,y,y-l]. If L iS an oriented link we will write P(L) = j(x,y). By abuse of notation we will also write P(b) for b an oriented braid, meaning, of course, the invariant associated to the oriented link determined by closing up b in the usual way. Several equivalent ways of codifying this invariant are described in [FYHLMO]. We have chosen the approach of Lickorish and Millett. Hence our P(K) = j(X, Y) iS precisely their PK with x and y substituted for I and m respectively (see [FYHLMO] and [L-M]). There appears as yet to be no consensus on a name for this two-variable invariant. In order to avoid awkward circumlocutions and being unable to amalgamate the names of the six or eight individuals who actually discovered it, we have chosen to refer to it as the generalized Jones polynomial, or Jones polynomial for short, when there is no likelihood of confusion with the original Jones polynomial. This polynomial, which we will denote j(x, y), is characterized by Figure 1. The interpretation of this is as follows: Given a regular projection of a link K+ with a crossing pictured as below, one can form two new links K_ and KO which are identical to K+ except the one crossing is changed as shown. When this is done the Jones polynomials of the three links are related as in the formula. It is a remarkable fact that this together with the normalization that P (unknot) = 1, un+quely determines a Laurent polynomial j(x, y) and that this polynomial is a link invariant, i.e., is independent of the projection. This result can be found in [L-M]. This formula, in fact, gives a good method for recursively computing j(x, y). One Received by the editors January 13, 1986. 1980 Mathematics Subject Classification (1985 Revision). Primary 57M25. Research supported in part by NSF Grant MCS 83
Moving the Learning of Teaching Closer to Practice: Teacher Education Implications of School‐Based Inquiry Teams

A 5‐year prospective, quasi‐experimental investigation demonstrated that grade‐level teams in 9 Title 1 schools using an inquiry‐focused protocol to solve instructional problems significantly increased achievement. Teachers applying the inquiry protocol shifted attribution of improved student performance to their teaching rather than external causes. This shift was achieved by focusing on an academic problem long enough to develop an instructional solution. Seeing causal connections fosters acquisition of key teaching skills and knowledge, such as identifying student needs, formulating instructional plans, and using evidence to refine instruction. These outcomes are more likely when teams are teaching similar content, led by a trained peer‐facilitator, using an inquiry‐focused protocol, and have stable settings in which to engage in continuous improvement.
Rapid Elimination of German Cockroach, Blatella germanica, by Fipronil and Imidacloprid Gel Baits

Background: Baits have become popular and effective formulations against urban insect pests. Compared with residual sprays toxic gel baits are used more and more frequently to control urban cockroach populations. The aim of this study was to investigate the usage of two commercially available fipronil and imidacloprid gel bait formulations against Blattella germanica field infested in Iran. Methods: The study was carried out in an urban area at Tehran from March 2004 to September 2005. The 0.05% fipronil and 2.15% imidacloprid gel baits were placed continuously in 3 residential German cockroach infested units. Pre- and post-treatment cockroach density was assessed by visual count method. Results: Pre- and post-treatment visual count of cockroaches in treatment and control areas, and percentage reduction in cockroach density in treatment areas in comparison to control areas was showed that density reduction was increased with the 0.05% fipronil and 2.15% imidacloprid gel baits in treated areas from 1st to 9th week in comparison to control area. After 60 days, German cockroaches eliminated completely from these areas. Conclusion: These results show that fipronil and imidacloprid gel baits are highly effective in field German cockroach infested after insecticide spraying control failure German cockroach infested fields where spraying of pyrethroid insecticides failed to control the situation and confirm previous reports stating that avermectin and hydramethylnon are more effective than conventional insecticides in baits against cockroaches. Therefore, fipronil and imidacloprid gel baits are appropriate candidates for controlling German cockroach infested dwellings in Iran where control with other insectices failed because of resistance.
Optimism, Information, and Optimal Disinformation

Over-optimism is a ubiquitous aspect of real-life expectations. We suggest that over-optimism is related to both utility and choices, rather than being merely cheap talk. Our enhanced utility model includes an explicit role for expectation formation, and features costs associated with self-delusion. We predict and then verify using unique survey data that work effort, caring about the future, and over-optimism are all positively related. We derive the deep parameters of the utility function from social evolutionary processes. Finally, we explore the implications of our theory for the optimal information-revelation policy of fully-informed principals.
hp-FEM for three-dimensional elastic plates

In this work, we analyze hierarchic hp -finite element discretizations of the full, three-dimensional plate problem. Based on two-scale asymptotic expansion of the three-dimensional solution, we give specific mesh design principles for the hp -FEM which allow to resolve the three-dimensional boundary layer profiles at robust, exponential rate. We prove that, as the plate half-thickness e tends to zero, the hp -discretization is consistent with the three-dimensional solution to any power of e in the energy norm for the degree and with degrees of freedom.
Comparison of aminoglycoside resistance mechanisms in Pseudomonas aeruginosa isolates from Slovakia and Greece

1 Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University, Mlynská dolina B-2, SK-84215 Bratislava, Slovakia; tel. : ++ 421 2 60296489, fax: ++ 421 2 60296686, e-mail: kettner@fns.uniba. sk 4Department of Internal Medicine, Athens School of Medicine, GR-15126 Athens, Greece Institute of Experimental Pharmacology, Slovak Academy of Sciences, Dúbravská cesta 9, SK-84216 Bratislava, Slovakia State Public Health Institute of the Slovak Republic, Trnavská 52, SK-82645 Bratislava, Slovakia Bristol-Myers Squibb Slovakia, Kapucínska 5, SK-81103 Bratislava, Slovakia
LOCAL ORIGIN OF HIGH PRESSURE VEIN MATERIAL IN ECLOGITE FACIES ROCKS OF THE ZERMATT-SAAS ZONE, SWITZERLAND

Prograde dehydration reactions within metabasalts at the blueschist- eclogite facies transition produce kyanite veins, usually with quartz, sometimes with omphacite or chloritoid, of up to several meters length and 20 cm width. Bulk rock analyses show clear depletion haloes for Al2O3 and SiO2 near the veins. Mass balance calculations support the suggestion that the vein material must have been derived from the immediate surroundings. These veins are interpreted as local segregation phenom- ena and not as fluid dehydration channels of the eo-Alpine subduction zone. Calcula- tions have been performed for a stagnant vein formation model that considers the rate of the dehydration reactions (k) responsible for providing the H2O for Al and Si transport and the rate of diffusion (D) of these from wall rock to growing vein. The model is satisfied for quite a wide range of values for k/D and upper limits on the duration of diffusional vein formation of about 1 Ma are indicated.
Blending Cooking Oil Biodiesel with Petroleum Diesel: A Comparative Performance Test on a Variable IC Engine

Research in biodiesel production has been motivated by several reasons including consistant increase in prices of petroleum diesel, environmental advantages, security of fuel supply, and employment creation. This paper presents a review of one alternative technological method that can be used to produce this fuel. Biodiesel from used cooking oil was produced by alkali catalyzed transesterification process. Performance of internal combustion engine using this bio-diesel blended with petroleum diesel in various blending ratios was performed. The engine performance studies were conducted on a variable compression engine test rig with automatic data acquisition set up. Parameters such as brake power, torque and fuel consumption were measured at different loads for pure petroleum diesel, pure biodiesel and different combinations of the dual fuel. The test results indicate that the performance of the engine is comparable for all the fuel mixtures under review
Morphometric analysis in different geographical populations of Varroa destructor (Acari: Varroidae) associated with Apis mellifera colonies in Iran

Abstract Varroa destructor is a major ectoparasitic mite which feeds on the western honey bee, Apis mellifera hemolymph. Morphometric analysis of V. destructor in Iran was performed in order to detect differences within some populations of the species. Totally, 145 female mites were collected from A. mellifera colonies in different geographical regions in Iran and Europe (Spain and France). Eight morphological variables were measured: 1) length of dorsal shield (LDS), 2) width of dorsal shield (WDS), 3) length of genital shield (LGS), 4) width of genital shield (WGS), 5) length of metapodal shield (LMS), 6) width of metapodal shield (WMS), 7) length of anal shield (LAS) and 8) width of the anal shield (WAS). The ratios of LDS/WDS, WDS/LDS, LGS/WGS and LAS/WAS were also calculated. Multivariate analyses demonstrated significant differences in means of body length (LDS) and body width (WDS) between populations. Using principal component analysis (PCA) and cluster analysis with pair group method, five morphological groups were established. PCA analyses were also shown one morphotype, A3, between samples. Collectively, our findings suggest a wide phenotypic plasticity within the populations of Varroa mite in Iran.
An evaluation of osmotic technique under ultraviolet germicidal irradiation exposure

The osmotic technique, which uses polyethylene glycol (PEG) solutions of varying concentrations with semipermeable membranes of different molecular weight cutoffs (MWCO), is commonly used to apply suction in soils. Cellulose acetate membranes which are most commonly used, are susceptible to microbial attacks. This in turn will lead to the intrusion of PEG into soil specimens. Osmotic and vapour equilibrium techniques are often used to establish drying suction-water content soil-water characteristic curves (SWCC). In this study, suctions of 0.11 to 300 MPa were applied on Andrassy bentonite slurries. At higher applied suctions, the osmotic tests were carried under short length ultraviolet germicidal irradiation (UVGI). In addition, Atomic Force Microscopy (AFM) and Fourier Infrared (FTiR) were employed to evaluate the changes in the semipermeable membranes and PEG molecules, respectively. The water content of the clay obtained from the osmotic tests was found to be greater at the overlapping suction region. Interestingly, under UVGI exposure, the water content was found to be in good agreement with the water content determined using the osmotic technique at low suctions and the vapour equilibrium technique at higher suctions. FTiR spectrum and AFM results revealed that some changes had occurred on both the PEG and in the membrane pore sizes. However, these changes did not affect the final water content in the bentonite and therefore, more precise suction-water content SWCC for the clay could be established.
Teachers' Stages of Concern and Levels of Use of a Curriculum Innovation in China: A Case Study

This paper describes a study of the implementation of a new English language curriculum for senior secondary school in China. The study applied the Concerns-Based Adoption Model and examined the stages of concern and levels of use of the new curriculum of three teachers in a secondary school in Guangdong province. The findings of the study suggest that the three teachers hold a positive view towards the new curriculum, that their concerns are characteristic of three stages - management, personal concerns and consequence, and that they are implementing the new curriculum largely at two levels - mechanical use and routine use. Uncertainty about the National Matriculation English Test , lack of teacher training, and inadequate teaching time are found to be the main factors that hinder the implementation of the new curriculum in their classrooms.
Deep Multi-Sensor Lane Detection

Reliable and accurate lane detection has been a long-standing problem in the field of autonomous driving. In recent years, many approaches have been developed that use images (or videos) as input and reason in image space. In this paper we argue that accurate image estimates do not translate to precise 3D lane boundaries, which are the input required by modern motion planning algorithms. To address this issue, we propose a novel deep neural network that takes advantage of both LiDAR and camera sensors and produces very accurate estimates directly in 3D space. We demonstrate the performance of our approach on both highways and in cities, and show very accurate estimates in complex scenarios such as heavy traffic (which produces occlusion), fork, merges and intersections.
LS 5039 - the counterpart of the unidentified MeV source GRO J1823-12

Context. The COMPTEL experunent on CGRO observed the gamma-ray sky at energies from 0.75 MeV to 30 MeV between April 1991 and June 2000. COMPTEL detected many gamma-ray sources, among them an unidentified one labeled GRO J1823-12. It is located near l/b = 17.5 degrees/-0.5 degrees and positionally consistent with the prominent gamma-ray binary LS 5039. Aims. LS 5039 was established as a gamma-ray source at TeV energies by HESS and at GeV energies by Fermi/LAT during recent years, whose gamma-ray radiation is modulated alone its binary orbit. Given this new information we reanalyzed the COMPTEL data of GRO J1823-12 including an orbital-resolved analysis. Methods. We applied the standard methods, proper event selections and data binning with subsequent maximum-likelihood deconvolution, to analyze the COMPTEL data. In addition we developed a tool for selecting and binning the COMPTEL data in a phase-resolved manner. We present the orbit-averaged, as well as orbit-resolved MeV analyses, light curves, and spectra, and put them into a multifrequency context. Results. The COMPTEL data show a significant MeV source, which is positionally consistent with LS 5039, but also with other closeby Fermi/LAT sources. The orbit-resolved analysis provides strong evidence, at about the 3 sigma level, that the MeV flux of GRO J1823-12 is modulated along the binary orbit of about 3.9 days of LS 5039. We show that at MeV energies, the source is brighter at the orbital part around the inferior conjunction than at the part of the superior conjunction, so it is in phase with X-rays and TeV gamma-rays, but in anti-phase with GeV gamma-rays. The high-energy spectral energy distribution (X-rays to TeV gamma-rays) shows the high-energy emission maximiun of LS 5039 at MeV energies. Conclusions. We conclude that the COMPTEL source GRO J1823-12 is the counterpart of the microquasar LS 5039, at least for the majority of its MeV emission. The COMPTEL fluxes, put into multifrequency perspective, provide new constraints on the modeling of the high-energy emission pattern of the gamma-ray binary LS 5039.
On the existence and uniqueness of positive solutions for competing species models with diffusion

In this paper, we consider strictly positive solutions of competing species systems with diffusion under Dirichlet boundary conditions. We obtain a good understanding of when strictly positive solutions exist, obtain new nonuniqueness results and a number of other results, showing how complicated these equations can be. In particular, we consider how the shape of the underlying domain affects the behaviour of the equations. The purpose of this paper is to obtain much better results on the existence and uniqueness of strictly positive stationary (that is time-independent) solutions of