Miracle-dz/UniFAR-FTUs huggingface dataset:
Estimation of vessel traffic density from Suomi NPP VIIRS day/night band

Continuous observation of change in vessels activity is important to detect the events and understand the circumstances within the maritime environment. In this paper, we propose the estimation and visualization method of vessel traffic density from day/night band in Visible Infrared Imaging Radiometer Suite (VIIRS) sensor on the Suomi National Polar-orbiting Partnership (Suomi NPP) in order to detect the activity of small vessels that their location data is not reporting by Automatic Identification System (AIS) data. Moreover, we investigate the proposed visualization method in the application on the region of South China Sea.
Relation between the Macroscopic Pattern of Elephant Ivory and Its Three-Dimensional Micro-Tubular Network

Macroscopic, periodic, dark and bright patterns are observed on sections of elephant tusk, in the dentin part (ivory). The motifs—also called Schreger pattern—vary depending on the orientation in the tusk: on sections perpendicular to the tusk axis, a checkerboard pattern is present whereas on sections longitudinal to it, alternating stripes are observed. This pattern has been used to identify elephant and mammoth ivory in archeological artifacts and informs on the continuous tissue growth mechanisms of tusk. However, its origin, assumed to be related to the 3D structure of empty microtubules surrounded by the ivory matrix has yet to be characterized unequivocally. Based on 2D observations of the ivory microtubules by means of a variety of imaging techniques of three different planes (transverse, longitudinal and tangential to the tusk axis), we show that the dark areas of the macroscopic pattern are due to tubules oblique to the surface whereas bright areas are related to tubules parallel to it. The different microstructures observed in the three planes as well as the 3D data obtained by SR-μCT analysis allow us to propose a 3D model of the microtubule network with helical tubules phase-shifted in the tangential direction. The phase shift is a combination of a continuous phase shift of π every 1 mm with a stepwise phase shift of π/2 every 500 μm. By using 3D modeling, we show how the 3D helical model better represents the experimental microstructure observed in 2D planes compared to previous models in the literature. This brings new information on the origin of the unique Schreger pattern of elephant ivory, crucial for better understanding how archaeological objects were processed and for opening new routes to rethink how biological materials are built.
Electrical Transport in Small-World Networks

In this work, we study the characteristic of the electrical transport in small-world resistor networks where the resistance is considered as a power law function of the distance between two connected nodes. By Monte carlo's method. We study the effects of shortcuts probability on the average resistance and its standard deviation of the small-world resistor networks, and the relation between the power-law exponent and the average resistance and its standard deviation. We find all properties rapidly decay to the case of the random resistor network for an arbitrarily small density of shortcuts and the average resistance and its standard deviation increase with the power-law exponent. For all these results, the reasonable explanation is given.
Health assessment of electronic systems

Incorporating prognostics and health management (PHM) techniques into mission and safety-critical system providesthe systems with capabilities to determine the advent of failure and mitigate system risks. However, in order to facilitate prognostics, it is necessary to track the degradation in a system's health. This paper introduces a method based on the simulation-before-test (SBT) technique to quantitatively assess the health of an electronic system. The proposed method exploits the features specific to the system's circuitries along with a kernel-based classifier for estimating the system's health. The effectiveness of the developed health assessment approach is illustrated with a case study on benchmark analog state variable filter circuit.
Invited Commentary

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Genetic reconstructions of invasion history

A diverse array of molecular markers and constantly evolving analytical approaches have been employed to reconstruct the invasion histories of the most notorious invasions. Detailed information on the source(s) of introduction, invasion route, type of vectors, number of independent introductions and pathways of secondary spread has been corroborated for a large number of biological invasions. In this review, I present the promises and limitations of current techniques while discussing future directions. Broad phylogeographic surveys of native and introduced populations have traced back invasion routes with surprising precision. These approaches often further clarify species boundaries and reveal complex patterns of genetic relationships with noninvasive relatives. Moreover, fine‐scale analyses of population genetics or genomics allow deep inferences on the colonization dynamics across invaded ranges and can reveal the extent of gene flow among populations across various geographical scales, major demographic events such as genetic bottlenecks as well as other important evolutionary events such as hybridization with native taxa, inbreeding and selective sweeps. Genetic data have been often corroborated successfully with historical, geographical and ecological data to enable a comprehensive reconstruction of the invasion process. The advent of next‐generation sequencing, along with the availability of extensive databases of repository sequences generated by barcoding projects opens the opportunity to broadly monitor biodiversity, to identify early invasions and to quantify failed invasions that would otherwise remain inconspicuous to the human eye.
A Novel Technique for-the Design of High Efficiency Power Amplifiers

A novel technique for the design of highly efficient power amplifiers based on an understanding of large signal device behavior has been developed. This is intrinsically a linear circuit analysis procedure employing the concept of conversion matrices. This technique represents a numerically efficient method of analyzing design trade-offs in topology and element values. An extremely small (18mm2) amplifier was designed using this technique and yielded 62% PAE at 1.5 W output power.
Peripheral and Central Sex Steroids Have Differential Effects on the HPA Axis of Male and Female Rats

Sex differences in hypothalamic-pituitary-adrenal (HPA) function were examined in gonadectomized male and female rats given equivalent sex hormone replacement regimens either using subcutaneous silastic implants (Experiment 1) or cannula implants in the medial preoptic area (MPOA) (Experiment 2) containing either dihydrotestosterone (DHT), testosterone propionate (TP), estradiol benzoate (EB), or left empty (control). Plasma was obtained before and after 20 min of restraint stress to determine plasma ACTH, corticosterone, and CBG levels as measures of HPA function. Consistent with the literature, androgens decreased, and estrogen increased these measures of HPA function, although peripheral implants were more effective than MPOA implants. Gonadectomy and sex hormone treatment did not eliminate sex differences; overall, females had higher levels than males on measures of HPA function. Analyses of variance (ANOVA) indicated interactions of sex and sex hormone treatment on CBG levels and post-stress corticosterone levels in Expt. 1. The results suggest that sexual dimorphisms influence HPA function even when males and females are given equivalent physiological doses of gonadal steroids, and that the relevant sexual dimorphisms involve both the periphery and the CNS.
Structural analogues of AMD3100 mobilise haematopoietic progenitor cells from bone marrow in vivo according to their ability to inhibit CXCL12 binding to CXCR4 in vitro

The CXCR4 antagonist, AMD3100, stimulates a rapid increase in circulating numbers of haematopoeitic progenitor cells (HPCs) in both mice and human healthy volunteers. An in situ perfusion system of the mouse femoral bone marrow was used to provide the first direct evidence that AMD3100 mobilises HPCs from the bone marrow. Structural analogues of AMD3100 demonstrated that the ability of these compounds to mobilise HPCs in vivo correlated with their capacity to antagonise CXCR4 in vitro. This model system was also used to demonstrate additive effects of AMD3100 administered acutely, with granulocyte colony‐stimulating factor administered chronically, with respect to HPC mobilisation.
Fast multicamera video stitching for underwater wide field-of-view observation

Abstract. Underwater robots equipped with a single forward-looking camera usually have a very limited visual range or field-of-view (FOV) due to the light absorption and scattering effects in the underwater environment, which greatly limit their applications for underwater video-based inspection, navigation, and so on. Although underwater robots using multicamera imaging systems can achieve wide FOV of surroundings, parallax distortion and time-consuming stitching computation are encountered, especially for short-distance observation. To overcome these problems, we present a fast multicamera video-stitching algorithm based on adaptive adjustment of image transformation matrix between adjacent images. The proposed method uses a fast and adaptive optimization algorithm to search the optimal parameters of transformation matrix that can minimize the parallax distortion due to short-distance imaging and maximize the matching degree between adjacent overlapping image areas. The advantage of the proposed stitching method lies in that it avoids the complex and time-consuming computations for feature-point extraction and matching. The experimental results show that the proposed method can construct multicamera-based wide FOV video effectively and meets the real-time requirement of wide FOV video observation for both indoor and underwater scenes.
Interference forwarding for D2D based heterogeneous cellular networks

For extended cell coverage and green communication, various small-cell networks, such as femtocells and picocells, are applied to cellular networks. This leads to the reduction of shadow areas and an increase of spectral efficiency with higher cell-edge capacity. Due to increasing heterogeneity, however, small cells cause co-tier and cross-tier interferences which are the critical issue that aggravates the signal-to-interference-plus-noise ratio (SINR) of macro user equipment (MUE). Especially, a MUE in the cell-edge area can be a victim owing to a nearby small-cell access point despite its low transmit power. We propose an interference forwarding (IF) scheme in a dual link for enhancing the SINR at victim MUE, considering a two-tier network where a macrocell and underlaid closed-access small cells coexist, along with device-to-device (D2D) communication between close-by peer MUEs supported. Numerical results with 3-dimensional plot demonstrates that our proposed IF scheme notably improves the achievable spectral efficiency at victim MUE.
Editorial: Evidence-Based Guidelines for Avoiding the Most Common APA Errors in Journal Article Submissions

In this editorial, we provide evidence-based guidelines to help authors avoid committing APA errors. Specifically, we provide guidelines for adhering to APA style using findings from Combs, Onwuegbuzie, and Frels’ (2010) mixed analysis of 110 manuscripts submitted to Research in the Schools over a 6-year period. Combs et al. identified the 60 most common APA errors grouped into 14 themes. We contend that an efficient way for authors to learn APA style is to focus initially on these common errors and error themes. Further, we contend that these errors provide useful starting points for persons who teach APA style. Finally, authors of the APA Publication Manual might use this information to determine which rules and guidelines to emphasize.
novel test to determine the significance of neural selectivity to single and ultiple potentially correlated stimulus features obin

Mutual information is a principled non-linear measure of dependence between stochastic variables, which is widely used to study the selectivity of neural responses to external stimuli. Here we define and develop a set of novel statistical independence tests based on mutual information, which quantify the significance of neural selectivity to either single features or to multiple, potentially correlated stimulus features like those often present in naturalistic stimuli. If the values of different features are correlated during stimulus presentation, it is difficult to establish if one feature is genuinely encoded by the response, or if it instead appears to be encoded only as a side effect of its correlation with another genuinely represented feature. Our tests provide a way to disambiguate between these two possibilities. We use realistic simulations of neural responses tuned to one or more correlated stimulus features to investigate how limited sampling bias correction procedures affect the statistical power of such independence tests, and we characterize the regimes in which the distribution of information values under amma band the null hypothesis can be approximated by simple distributions (Chi-square or Gaussian). Finally, we apply these tests to experimental data to determine the significance of tuning of the band limited power (BLP) of the gamma [30–100 Hz] frequency range of the primary visual cortical local field potential to multiple correlated features during presentation of naturalistic movies. We show that gamma BLP carries significant, genuine information about orientation, space contrast and time contrast, despite the strong correlations between these features. © 2011 Elsevier B.V. All rights reserved.
Using gross migration data compiled from the social security sample file

A study by Donald Pursell (1972), which examines migration data compiled from the one-percent sample file of the Social Security Administration, is discussed in this paper. An important feature of the data which is neglected by Pursell is pointed out, and the Pursell results are compared with findings obtained using somewhat different treatments of the social security data. The Pursell conclusion that out-migration is negatively related to employment growth is supported by the alternative tests.
Age-Related Changes in Tear Menisci Imaged by Optical Coherence Tomography

Purpose. To determine age-related changes of tear menisci in healthy subjects and to compare tear variables between age-matched normals and dry eye subjects. Methods. Anterior segment optical coherence tomography was used to measure upper and lower tear menisci in healthy subjects (n = 197, 8–83 years) and in age-matched dry eye patients (n = 38, 19–72 years). Measured tear variables included the height and area of the tear meniscus. Tear meniscus volumes were calculated based on the cross-sectional areas of the tear menisci and the eyelid lengths. The age-related decrease rates of the tear menisci were also calculated. Results. There were significant negative correlations between age and all tear meniscus dimensions (r ranged from −0.649 to −0.753; p < 0.05) in the healthy group. The rate of decrease for the total tear meniscus volume in healthy subjects was 1.0% per year. Compared with age-matched healthy subjects, the height, cross-sectional area, and volume of the upper and lower tear menisci in dry eye subjects were significantly smaller (p < 0.05). Conclusions. Tear menisci decreased with age in the healthy group. The variables in age-matched dry eye subjects were significantly lower than those in the healthy group.
Physical computing circuit with no clock to establish Gaussian pyramid of SIFT algorithm

Physical computing scheme of active resistor network is proposed in this paper to set up a multi-scale Gaussian filter, which is also called Gaussian Pyramid in image signal processing. The analog output signal of each image photodiode could be directly processed by the circuit topology of an active resistor network, which has been pre-designed to meet the requirement of the complicated Gaussian Pyramid in SIFT algorithm. Since it is operated with no clock, the physical computing scheme, with only setup time of the whole processing circuits, is much faster than various current digital realizations. The circuit-level simulation with 65nm CMOS technology has been carried out, which shows the energy consumption of the Gaussian Pyramid processing circuit is around 74.79pJ to filter a frame of 256 × 256 pixel image, and the circuit setting time of the processing is about 138.03ps, considering the parasitic capacitances of each nodes of the circuits. Furthermore, the presented circuit is integrated into a smart CMOS image sensor architecture. With the same processing procedure, the new method of active resistor network could achieve 1.58X speedup when compared with its counterpart of FPGA implementation, in which the column-parallel readout technology of analog-to-digital convertor is used.
Towards the integration of automatic speech recognition and information retrieval for spoken query processing

Spoken query processing (SQP) is the task of fulﬁlling an information need, inferred from a spoken query, by listing a set of ranked relevant documents. The two main sources of uncertainty in SQP lay on the realization of the speech waveform and on the realization of the observed document. The proposed integration models these uncertainties under a single probabilistic framework. A case study on movie title retrieval by voice is presented to illustrate the proposed methodology. By allowing an ontology inlet, a 14% relative gain in the model convergence was achieved. An improved mean reciprocal rank and mean inclusion rate of the retrieval outcome was obtained using the proposed framework.
Rhodobacter sphaeroides WS8 expresses a polypeptide that is similar to MotB of Escherichia coli

A gene which complements a paralyzed flagellar mutant of Rhodobacter sphaeroides was sequenced. The derived protein sequence has similarity to MotB. R. sphaeroides MotB lacks the C-terminal peptidoglycan-binding motif of other MotB proteins. This divergence of sequence may reflect the unusual, unidirectional, stop-start action of the R. sphaeroides flagellar motor.
USRP technology for multiband passive radar

The purpose of the paper is to show how the Universal Software Radio Peripheral (USRP) technology, typically used for implementing telecommunication systems, can be used for realizing passive radars. Specifically in this paper a multiband passive radar is considered. A preliminary study on the signals of opportunity is presented where real and simulated radar ambiguity functions have been evaluated. An experimental system has been set up and live data acquired both for UMTS and DVB-T signals in order to verify the capability of the proposed passive radar demonstrator.
Exploring the performance of TCP vegas in mobile ad hoc networks

Recent research efforts in mobile ad hoc networks have concentrated on examining the behaviour of TCP Reno over various ad hoc routing protocols and have suggested a number of extensions to improve its performance. TCP Vegas, which takes a proactive approach to congestion avoidance, has not so far been examined as a viable alternative to TCP Reno in wireless environments and no effort has been made to analyse its performance over routing protocols for MANETs. This paper evaluates using extensive simulation experiments the performance behaviour of TCP Vegas over a proactive (destination sequenced distance vector) and two reactive (dynamic source routing and ad hoc on demand distance vector) routing protocols and compares it against that of TCP Reno. Copyright © 2004 John Wiley & Sons, Ltd.
Glove-Based Technology in Hand Rehabilitation

Injuries to the hand are more common than those of any other body region and can have considerable financial, time-measured and psychological impact on not only the victim but the community as a whole. Hand rehabilitation aims to return people to their pre-injury roles and occupations and has proved largely successful in doing so with the potential for technology to improve these results further. However, most technology used in hand rehabilitation is based on expensive and non-durable glove-based systems and issues with accuracy are common among those which are not glove-based. The authors outline an accurate, affordable and portable solution wherein the authors use the Leap Motion as a tool for hand rehabilitation. User feedback will be given primarily through an animated 3d hand model as the user performs rehabilitative exercises. Exercise results will be recorded for later viewing by patients and clinicians. The system will also include Gamification aspects, techniques which (while proven to increase participation) have seen little to no use in hand-rehabilitation systems.
Using the Internet in High School Mathematics.

Whilst the technological, pedagogical and content knowledge (TPACK) model has beenÂ increasingly adopted for understanding teachersâ€™ use of technology, there have been many callsÂ for greater discussion about the constituent constructs, their relationship with one another andÂ the central TPACK. This paper analyses qualitatively the TPACK demonstrated by the teacherÂ of a Year 11class who used web-based simulated contexts and interactive web objects in aÂ Mathematics Studies course. The findings indicate aspects of TPK relating to academicÂ learning time and the transformational mode of the technology were not fully realised in thisÂ case study. The implications these has for teacher professional development are discussed. Keywords: Classroom Teaching, Interactive Learning Environments, TPACK, MathematicsÂ Education, Pedagogical Issues. Â DOI : http://dx.doi. org/10.22342/jme.5. 2.1496. 108-126