Miracle-dz/UniFAR-FTUs huggingface dataset:
The relationship between the temporal structure of magnetoencephalography recorded brain activity and capacity to form discrete auditory representations

A function of oscillatory brain activity may be to align activity relative to threshold potentials and in doing so provide limited opportunities for representational neuronal assemblies to form. This low‐level function could apply across frequency bands and potentially affect the temporal dynamics of experience. To test these possibilities, a magnetoencephalography protocol was developed where capacity to form discrete auditory representations over time was assessed relative to oscillatory brain activity. Three sets of preregistered analyses were conducted. First, the capacity to form representations correlated with the prevalence and durations of activity localised to the auditory cortex. Second, brain oscillations became entrained to stimuli over a broad range of frequencies. Finally, a sequence of gamma (γ) band events predicted successful discrete representation, where previous research had indicated similar individuation‐related differences within the alpha (α) range. Together, these findings indicate that a low‐level function of cortical oscillations, which may apply across a range of frequency bands, is periodically to set conditions in which representational neuronal assemblies can manifest, limiting and so affecting the flow of experience.
Towards 100 Gbps: A Fully Electronic 90 Gbps One Meter Wireless Link at 230 GHz

In this paper we present a fully-electronic, high spectral efficiency one meter wireless link working at a maximum speed of 90 Gbps. It is based on a RF Tx and Rx front-end chipset working at a tunable carrier of 220–260 GHz. The chipset was manufactured in a SiGe 0.13um HBT technology with ft/fmax=350/550 GHz. The Tx delivers a maximum output power of 8.5 dBm and its dc power consumption is 960 m W. The receiver peak conversion gain is 21 dB and its minimum single side band noise figure is 9.5 dB with a power consumption of 1 W. The 6-dB bandwidth measured between the Tx baseband input and the Rx baseband output is 15 GHz. To increase the speed of our previous work of 65 Gbps based on a QPSK modulation scheme, an increase in the spectral efficiency of the link is needed. Applying a back off in the Tx of 4 dB, a link based on a 16-QAM modulation scheme with an spectral efficiency of 2 bits per hertz was achieved. For data-rates of 80 Gbps and below, the EVM achieved was under 11.2%, while for 90 Gbps the measured EVM was 15%.
Psychometric Properties of the French Version of the Young Schema Questionnaire - Short Form 3 (YSQ–S3)

Abstract The purpose was to assess the psychometric properties of the French version of the Young Schema Questionnaire - Short Form 3 (YSQ–S3). The main non-clinical sample (N = 605, M = 20.63, 78% women) was divided into two subsamples: One was used for exploratory factor analyses (EFA) and the other was used for confirmatory analyses. Next, internal consistency, convergent validity and criterion-related validity were studied. The EFA to each of the five domains was similar to the theoretical structure postulated by Young. The confirmatory analysis of each of the five domains appeared to favor our solution over a single-factor solution and Young’s solution. The confirmatory factor analyses of high-order structures did not give fully satisfactory results but appeared to favor our solution (RMSEA =.11, CFI =.76, TLI =.71, SRMR =.07, AIC = 58,566.44). In our best model, the reliability (> .70) was satisfactory for fourteen schemas. The relationships between the schemas and the neuroticism, extraversion and psychoticism scores went in the expected directions. Detrimental parental rearing behaviors were linked to high scores for the various schemas. Lastly, 4 schemas differentiated between the clinical and non-clinical groups. In conclusion, the overall psychometric qualities of the French version of the YSQ–S3 allow its use in clinical populations.
The effects of para-phenylenediamine (PPD) on the skin fibroblast cells

Abstract 1. Para-phenylenediamine (PPD) is the commonest and most well-known component of hair dyes. PPD is found in more than 1000 hair dye formulations and is the most frequently used permanent hair dye component in Europe, North America and East Asia. PPD containing hair dyes have been associated with cancer and mutagenicity. Apart from that, PPD has potential toxicity which includes acute toxicity such as allergic contact dermatitis and subacute toxicity. 2. In this study, we examined the effects of the PPD composition on the skin-isolated fibroblast cells. Fibroblast cells were isolated from the skin and cell viability, reactive oxygen species (ROS) production, the collapse of mitochondrial membrane potential (MMP), lipid peroxidation (LPO), damage to the lysosome release of lactate dehydrogenase (LDH) and finally release of cytochrome c were examined following the exposure to various concentrations of PPD. 3. Our results showed that exposure to PPD increased ROS generation, LPO, the collapse of MMP, LDH release and cytochrome c release. Our results suggest that PPD can induce damage to the lysosomal membrane. 4. These results showed that PPD composition has a selective toxicity on skin fibroblasts cell and mitochondria are considered one of the goals of its toxicity.
Price-volume relation behavior around structural breaks in Kuwait Boursa

This study attempts to conduct a comprehensive investigation of the price-volume relation using daily stock prices of all publicly traded firms in Kuwait Boursa over the period 2005–2017. The aim is to provide evidence from an emerging market on the information arrival hypothesis, which is explained by the mixture of distribution and the sequential information arrival hypotheses. The investigation covered two main structural events; the 2008 financial crisis and the activation of Kuwait’s New Securities Law in 2010 (CMA). The GARCH-ARCH test revealed a positive contemporaneous relation between trading volume and market return, which implies that previous information shocks affect current returns and imply that Kuwait stock market is weakly efficient. When trading volume is included in the variance equation in the GARCH model, the test revealed that new information arrival is not simultaneously available to all traders and it takes time to observe, providing support to the sequential information arrival hypothesis (SAIH). Finally, there was no change in the price-volume relation around the two events and urgent assessment of the new market reform is recommended.
Benchmarking and Comparing Popular Visual SLAM Algorithms

This paper contains the performance analysis and benchmarking of two popular visual SLAM Algorithms: RGBD-SLAM and RTABMap. The dataset used for the analysis is the TUM RGBD Dataset from the Computer Vision Group at TUM. The dataset selected has a large set of image sequences from a Microsoft Kinect RGB-D sensor with highly accurate and time-synchronized ground truth poses from a motion capture system. The test sequences selected depict a variety of problems and camera motions faced by Simultaneous Localization and Mapping (SLAM) algorithms for the purpose of testing the robustness of the algorithms in different situations. The evaluation metrics used for the comparison are Absolute Trajectory Error (ATE) and Relative Pose Error (RPE). The analysis involves comparing the Root Mean Square Error (RMSE) of the two metrics and the processing time for each algorithm. This paper serves as an important aid in the selection of SLAM algorithm for different scenes and camera motions. The analysis helps to realize the limitations of both SLAM methods. This paper also points out some underlying flaws in the used evaluation metrics.
Investigation on the Long-Term Reliability of High-Voltage p-GaN HEMT by Repetitively Transient Overcurrent

In this paper, the effects of repetitively transient overcurrent on the long-term reliability of commercial p-GaN high-electron-mobility transistors (HEMTs) are investigated by using <italic>RLC</italic> pulse-ring-down tests. The devices rated for 650 V/30 A are electrically stressed by peak pulse currents of 90 A, corresponding to <inline-formula> <tex-math notation="LaTeX">$3\times $ </tex-math></inline-formula> of the given rating. It is found that the device ON-state resistance (<inline-formula> <tex-math notation="LaTeX">${R}_{ \mathrm{\scriptscriptstyle ON}}$ </tex-math></inline-formula>) increases by about 20.7% for the device pulsed 500 000 times. The measured results reveal that the reason for the increase in <inline-formula> <tex-math notation="LaTeX">${R}_{ \mathrm{\scriptscriptstyle ON}}$ </tex-math></inline-formula> is the traps caused by thermal stress concentration during repetitive pulse process. Furthermore, for the device pulsed with larger than 500 000 times, a conductive path is formed through passivation layer because of trap accumulation, which results in a saturation trend in <inline-formula> <tex-math notation="LaTeX">${R}_{ \mathrm{\scriptscriptstyle ON}}$ </tex-math></inline-formula> and a remarkably increase in the drain leakage current (<inline-formula> <tex-math notation="LaTeX">${I}_{\text {DL}}$ </tex-math></inline-formula>). However, the high peak currents and large pulse numbers required to produce severe degeneration demonstrate the GaN-based HEMTs have a promising long-term reliability in power switching applications that are susceptible to pulse overcurrent.
Wearable affect and stress recognition: A review

Affect recognition aims to detect a person's affective state based on observables, with the goal to e.g. provide reasoning for decision making or support mental wellbeing. Recently, besides approaches based on audio, visual or text information, solutions relying on wearable sensors as observables (recording mainly physiological and inertial parameters) have received increasing attention. Wearable systems offer an ideal platform for long-term affect recognition applications due to their rich functionality and form factor. However, existing literature lacks a comprehensive overview of state-of-the-art research in wearable-based affect recognition. Therefore, the aim of this paper is to provide a broad overview and in-depth understanding of the theoretical background, methods, and best practices of wearable affect and stress recognition. We summarise psychological models, and detail affect-related physiological changes and their measurement with wearables. We outline lab protocols eliciting affective states, and provide guidelines for ground truth generation in field studies. We also describe the standard data processing chain, and review common approaches to preprocessing, feature extraction, and classification. By providing a comprehensive summary of the state-of-the-art and guidelines to various aspects, we would like to enable other researchers in the field of affect recognition to conduct and evaluate user studies and develop wearable systems.
Perspectives on the recruitment and retention of culturally and linguistically diverse police

Purpose: The aims of this paper are: to investigate the perceptions held by police (insiders) and community member (outsiders) of the recruitment and retention of culturally and linguistically diverse employees of Victoria Police; and, to develop a model that can assist in future recruitment and retention policy development. ---------- Design/methodology/approach: Structured focus group interviews were conducted based on an instrument deduced from existing literature. Police and community members were interviewed separate cohorts. The discussions were thematically coded to themes and sub-themes. ---------- Findings: Specific differences were identified in perceptions of the importance of recruiting culturally and linguistically diverse groups, barriers to recruitment, recruitment methods, and retention methods. ---------- Research limitations/implications: Based on these perceptions, a propose a model addresses the importance of cultural diversity in policing and barriers to recruitment and retention of culturally and linguistically diverse employees. Further research is necessary to assess the broader applicability of this model. ---------- Practical implications: The proposed model is may be used as the basis for future recruitment and retention activities, and human resource management policy development. ---------- Originality/value: This is the first study in the Australian context of recruitment and retention of culturally and linguistically diverse police that addresses both community and police perspectives. Aligning the demographic profile of the police service with that of the community is beneficial to effective policing.
A study on the outcome of neonates with sepsis at the Lagos University Teaching Hospital

Background : Neonatal morbidity and mortality are major public health challenges in our local environment with a huge percentage of deaths in the neonatal period attributable to sepsis. Aim : The aim of the study was to assess the factors that affect patients’ outcome with respect to sepsis in neonates. Methods : This was a prospective descriptive cross sectional study. Neonates with proven and suspected sepsis were recruited into the study. Outcome was assessed based on the length of hospital stay and mortality. Clinical response to treatment was also assessed. Results : Nine factors were identified as risk factors for mortality, birth weight (< 2500g P = 0.000, OR = 7.214, CI = 2.5 – 21.0), prolonged rupture of membranes (PROM) (P = 0.014, OR = 2.470, 95% CI = 1.2 -5.1), prolonged preterm rupture of membranes (PPROM) P = (0.046. OR = 2.1, 95% CI = 0.9 -4.6) multiple gestation (P = 0.009), an infectious clinical diagnosis (P = 0.046, OR = 0.480), frequent changes in antibiotics (P = 0.013). Others were a low Apgar score (P = 0.000), presence of organisms in intravenous fluids (P = 0.042, OR = 0.2, 95% CI = 0.02 – 1.3 and the presence of organisms in the blood stream (P = 0.007). Conclusion : This study determined the mortality rate in our environment due to sepsis to be 15.7%. Risk factors for a poor outcome include low birth weight, perinatal period, and maternal illness in pregnancy and isolation of a pathogen from the blood stream. Key words: Neonatal sepsis, prolonged stay, mortality, bactec 9050, microbact 12a, risk factors
Contribution of IL-33 to the Pathogenesis of Colorectal Cancer

The development of colorectal cancer (CRC) is not only determined by transformed cells per se, but also by factors existing in their immune microenvironment. Accumulating scientific evidence has revealed that interleukin (IL)-33, an IL-1 family member, plays an essential role in the regulation of immune response and is relevant in CRC pathogenesis. Data from both human and experimental studies demonstrated that IL-33 inhibits host anti-tumor immunity, remodels tumor stroma and enhances angiogenesis, thereby promoting the development of CRC. These pro-tumor effects of IL-33 are mainly mediated by IL-33 receptor ST2 (also known as IL-1RL1). Based on those findings, it is currently hypothesized that the IL-33/ST2 pathway is a potential biomarker and therapeutic target for colorectal tumorigenesis. Herein, we summarize the recent discoveries in understanding the critical role of the IL-33/ST2 pathway in contributing to the pathogenesis of colorectal tumorigenesis and discuss its potential implications for the future development of effective anti-tumor strategies.
Serious Game for Children with Autism to Learn Vocabulary: An Experimental Evaluation

ABSTRACT The use of serious games (SGs) to provide intervention for various skills to children with autism spectrum disorder (ASD) has increased in the recent years. However, the potential of these games has not been utilized to provide learning of vocabulary to children with ASD. In designing games for children with ASD, there is a need to consider components specifically from the perspectives of ASD and the generic components that can support from the theoretical, content, and game design aspects. In the absence of any existing framework to design games for children with ASD, this article first introduces a framework named serious game design framework (SGDF), constructed to provide support throughout the design process. This framework was constructed based on the extensive review of the literature on ASD and existing SGDFs. The article then focuses on the design and development of a SG prototype based on SGDF. An experimental evaluation prototype was conducted to examine the effectiveness using the withdrawal design of single-subject research design (SSRD) in improving the receptive identification of vocabulary items among children with autism before and after using the prototype. The receptive identification of vocabulary items is measured in terms of the number of correct responses given and the number of attempts made to identify the correct response. The pre- and post-evaluations of the SG prototype show that learning of vocabulary items among children with ASD improved after using the game and they retained items at the end of weeks 1 and 2 following the withdrawal of intervention.
Reactivity of Amorphous Carbon Surfaces: Rationalizing the Role of Structural Motifs in Functionalization Using Machine Learning

Systematic atomistic studies of surface reactivity for amorphous materials have not been possible in the past because of the complexity of these materials and the lack of the computer power necessary to draw representative statistics. With the emergence and popularization of machine learning (ML) approaches in materials science, systematic (and accurate) studies of the surface chemistry of disordered materials are now coming within reach. In this paper, we show how the reactivity of amorphous carbon (a-C) surfaces can be systematically quantified and understood by a combination of ML interatomic potentials, ML clustering techniques, and density functional theory calculations. This methodology allows us to process large amounts of atomic data to classify carbon atomic motifs on the basis of their geometry and quantify their reactivity toward hydrogen- and oxygen-containing functionalities. For instance, we identify subdivisions of sp and sp2 motifs with markedly different reactivities. We therefore draw a comprehensive, both qualitative and quantitative, picture of the surface chemistry of a-C and its reactivity toward −H, −O, −OH, and −COOH. While this paper focuses on a-C surfaces, the presented methodology opens up a new systematic and general way to study the surface chemistry of amorphous and disordered materials.
Direct dynamic control of a robot using an end-point mounted camera and Kalman filter position estimation

The development of a control strategy for direct dynamic end-point control of a manipulator based on position estimates obtained from endpoint mounted sensors is presented. The feasibility of using an extended Kalman filter algorithm for relative position estimates based on task object feature locations extracted from images obtained from an end-point mounted camera has been studied. An experimental system has been constructed and the position estimation and control strategy implemented to test the performance of the design. Tests have demonstrated the successful operation of the control strategy developed and have also demonstrated the feasibility of using an extended Kalman filter for relative position estimates at a sample rate of 61 Hz. <<ETX>>
Mast cells are increased in leukoplakia, oral submucous fibrosis, oral lichen planus and oral squamous cell carcinoma

Introduction: Oral leukoplakia, submucous fibrosis (OSMF), oral lichen planus (OLP) and oral squamous cell carcinoma (OSCC) are the commonly occurring oral diseases, with characteristic clinical and histological features. These diseases at some stage are associated with chronic inflammation in adjacent connective tissue. Mast cells are the local residents of the connective tissue, and are said to be pro-inflammatory, immunoamplifying in action and producing mitogenic cytokines. These functions of mast cells may play a significant role in the pathogenesis of other oral diseases. Aims: This study was done to histologically evaluate the number of mast cells in tissue sections of oral leukoplakia, submucous fibrosis, lichen planus and squamous cell carcinoma. Materials and Methods: Five cases each of normal oral mucosa, oral leukoplakia, oral submucous fibrosis, lichen planus and squamous cell carcinoma were studied for mast cell number using 1% Toluidine blue. Results: Increase in mast cell number were seen in all the four above mentioned oral diseases, with the highest mast cell count obtained in oral lichen planus. The mast cell number/sq.mm in oral leukoplakia, submucous fibrosis, lichen planus, squamous cell carcinoma were; 59.50, 48.25, 59.75 and 56.75 respectively. Conclusion: As compared to normal oral mucosa, increase in the mast cell number was noted in all the four conditions. Mast cell hyperplasia in oral leukoplakia, OSMF, OLP, OSCC suggests their probable role in the pathogenesis of these diseases.
Validity and Repeatability of Single-Sensor Loadsol Insoles during Landing

Clinically feasible methods for quantifying landing kinetics could help identify patients at risk for secondary anterior cruciate ligament injuries. The purpose of this study was to evaluate the validity and between-day repeatability of the loadsol insole during a single-hop and bilateral stop-jump. Thirty healthy recreational athletes completed seven single-hops and seven stop-jumps while simultaneous loadsol (100 Hz) and force plate (1920 Hz) measurements were recorded. Peak impact force, loading rate, and impulse were computed for the dominant limb, and limb symmetry was calculated between limbs for each measure. All outcomes were compared between the loadsol and force plate using intraclass correlation coefficients (ICC) and Bland–Altman plots. Fifteen participants completed a second day of testing to assess between-day repeatability of the loadsol. Finally, an additional 14 participants completed the first day of testing only to assess the validity of the newest generation loadsol, which sampled at 200 Hz. At 100 Hz, validity ICC results were moderate to excellent (0.686–0.982), and repeatability ICC results were moderate to excellent (0.616–0.928). The 200 Hz loadsol demonstrated improved validity ICC (0.765–0.987). Bland–Altman plots revealed that the loadsol underestimated load measures. However, this bias was not observed for symmetry outcomes. The loadsol device is a valid and repeatable tool for evaluating kinetics during landing.