Miracle-dz/UniFAR-FTUs huggingface dataset:
Causes, Effects and Management of Science Anxiety among Senior High School Students in Old Tafo Municipality of Ghana

: The purpose of the study was to investigate the causes, effects, and management of science anxiety among Senior High School (SHS) students in the Old Tafo Metropolis of the Ashanti Region of Ghana. The descriptive survey research design was adopted for the study. A sample of 337 students were selected from Osei Kyeretwie Senior High School and Al Azhariya Islamic Senior High School using the stratified random sampling procedure. Data were collected by using the Science Anxiety Scale and analysed using descriptive and inferential statistics. The study revealed that the respondents had some level of science anxiety in relation to doing science homework, having a negative attitude toward the science teacher, having fearful when entering the science classroom as well as solving science problems. The study also revealed that the causes of science anxiety involve the content, lack of infrastructure, and inadequate teaching and learning materials to make the subject easy to understand. The study revealed that science anxiety affected students’ academic performance negatively, reduced their interest in science, prevent them from pursuing science programmes in the future, and also affected school attendance. The study recommended that school heads should provide the necessary infrastructure and teaching materials that will make the teaching and learning of science practical and easy to understand.
Development of Fractal Geometry in a 1+1 Dimensional Universe

Observations of galaxies over large distances reveal the possibility of a fractal distribution of their positions. The source of fractal behavior is the lack of a length scale in the two body gravitational interaction. However, even with new, larger, sample sizes from recent surveys, it is difficult to extract information concerning fractal properties with confidence. Similarly, simulations with a billion particles only provide a thousand particles per dimension, far too small for accurate conclusions. With one dimensional models these limitations can be overcome by carrying out simulations with on the order of a quarter of a million particles without compromising the computation of the gravitational force. Here the multifractal properties of a group of these models that incorporate different features of the dynamical equations governing the evolution of a matter dominated universe are compared. The results share important similarities with galaxy observations, such as hierarchical clustering and apparent bifractal geometry. They also provide insights concerning possible constraints on length and time scales for fractal structure. They clearly demonstrate that fractal geometry evolves in the $\mu$ (position, velocity) space. The observed properties are simply a shadow (projection) of higher dimensional structure.
Uniqueness regime for Markov dynamics on quantum lattice spin systems

We consider a lattice of weakly interacting quantum Markov processes. Without interaction, the dynamics at each site is relaxing exponentially to a unique stationary state. With interaction, we show that there remains a unique stationary state in the thermodynamic limit, i.e. absence of phase coexistence, and the relaxation towards it is exponentially fast for local observables. We do not assume that the quantum Markov process is reversible (detailed balance) w.r. t. a local Hamiltonian.
Usefulness of Contrast-Enhanced CT on Arrival in Colonic Diverticular Bleeding

Contrast-enhanced computed tomography (CT) and colonoscopy are very useful for the diagnosis and treatment of colonic diverticular bleeding. However, the timing of CT has been reported in few cases. The aim of this study was to demonstrate the usefulness of contrast-enhanced CT on arrival in colonic diverticular bleeding. We conducted a review of the data of patients that were diagnosed with colonic diverticular bleeding between July 2010 and December 2021. Eighty-two patients (51 males, 31 females, average age 69.1 years) were admitted with diagnosis of colonic diverticular bleeding after under-going contrast-enhanced CT. We retrospectively investigated the relationship between the initial diagnosis by contrast-enhanced CT on arrival at the hospital and the results of endoscopic identification. Contrast-enhanced CT showed extravasation of contrast medium in 30 cases. The time from the onset of bloody stool to the implementation of contrast-enhanced CT was significantly shorter in cases with extravasation images in the CT (average 7.9 hours) than in cases without extravasation images in the CT (average 15.3 hours). The identification rate of diverticular bleeding sites with colonoscopy was significantly higher in cases with extravasation images in the CT (83%) than in cases without extravasation images in the CT (36.5%). The final treatment methods were endoscopic hemostasis in 46 cases, medical treatment alone in 26 cases, transcatheter arterial embolization (TAE) in 8 cases, and surgery in 2 cases. For patients suspected of colonic diverticular bleeding, performing contrast-enhanced CT early and estimating the bleeding site before colonoscopy may lead to the success of endoscopic hemostasis. To identify and treat successfully colonic diverticular bleeding by colonoscopy, the early use of contrast-enhanced CT before colonoscopy is highly recommended.
Ready to treat patients with obesity? Evaluation of undergraduate students’ body image, disordered eating attitudes & behaviors, and anti-fat attitudes

Abstract Weight bias exerts an adverse impact on the overall health and well-being. This study examined dieting behaviors, the effect of the BMI chart in one’s body perceptions by using the photographic figure rating scale, and explicit weight bias among university students (N = 192) in different career-focused disciplines such as allied health programs. Participants tended to select larger photographic figures when asked to choose an image that represents a healthy, an overweight, and an obesity figure without viewing the BMI chart. Results showed no significant differences in anti-fat attitudes between different career-focused groups. While gender played a significant role in anti-fat attitudes, weight status influenced participants’ fear of becoming fat. To a similar degree across career paths, weight bias might evenly exist. Using the BMI chart to determine one’s weight status might create inconsistent body perceptions, which may lead to weight stigmatized attitudes toward individuals labeled as overweight or obesity.
Real-time Damper Force Estimation for Automotive Suspension

The real-time knowledge of the damper force is of paramount importance in controlling and diagnosing automotive suspension systems. This study presents a generalized H2/LPV observer for damper force estimation of a semi-active electro-rheological (ER) suspension system. First, an extended quarter-car model augmented with the nonlinear and dynamical model of the semi-active suspension system is written into the quasi-LPV formulation. Then, the damper force estimation method is developed through a generalized H2/LPV observer whose objective is to handle the impact of unknown road disturbances and sensor noise on the estimation errors of the state variables thanks to the H2 norm. The measured sprung and unsprung mass accelerations of the quarter-car system are used as inputs for the observer. The proposed approach is simulated with validated model of the 1/5-scaled real vehicle testbed of GIPSA-lab. Simulation results show the performance of the estimation method against unknown disturbances, emphasizing the effectiveness of the damper force estimation in real time.
MERLIN Deep Radio Observations of Supernovae Remnants in M82

An 8 day (∼ 175 hours) deep integration at 5 GHz of the prototypical starburst galaxy M82 has provided the most sensitive (to date) high-resolution image of M82 with an angular resolution of 35mas and an rms noise level of 17 μJybeam−1. These sub-arcsecond observations detected a number of radio supernovae remnants and have been used to produce detailed images revealing shell and partial shell structures. Additionally, use of an astrometrically aligned image from 36 hour observations in 1992 will enable an effective comparison of the supernova remnants at two epochs (seperated by 10 years). This will allow direct measurement of the expansion velocities of the individual remnants. We present an explanation of the methods to be used to measure the sizes of these supernova remnants and how these will be compared to give expansion velocity measurements.
Creating an artificial neural network time series model for the prediction of daily solar radiation in Oran

Water and clean energies are currently a major scientific and political concern. The use of numer - ical prediction is often recommended in these areas, for optimal exploitation of renewable energy resources, mainly for seawater desalination and other energy and food security activities. In this study, we present an application of artificial neural networks (ANN), developed for daily solar energy forecasting. The ANN model developed is based on the multi-layer perceptron, the most widely used ANN type in renewable energy and time series forecasting. The developed model has two main properties: I. The ANN training is based on long-term reanalysis data, allowing the model to be trained even in areas where no radiation measurements are available, as is the case for marine areas and in the new desalination plants. II. The model allows automatic selection of the optimal ANN model architecture based on the training data. A thirty-nine-year time series of reanalysis data between 1980 and 2018 was used for training and model implementation. Thus, the model accuracy was evaluated based on one-year data (2019). The obtained error analysis results show that the developed model has a good performance in line with previous studies. The developed ANN models are characterized by reasonable daily prediction accuracy, with a root mean square error of 3.248 MJ/(m 2 d) for solar radiation prediction. This verifies the accuracy and ability of the model to predict solar radiation to ensure optimal management of solar energy farms.
The Role of Executive Functions in Reading Comprehension by Adolescents with ADHD

Abstract The present study explored (a) whether differences between students with and without ADHD in reading comprehension are explained by their executive functions, and (b) the unique and shared contribution of the various executive functions to reading comprehension ability. To address these questions, ninety-six adolescents with and without ADHD completed open-ended question tests following the reading of two expository texts, and a series of tasks to assess five EF—planning, cognitive flexibility, updating, inhibition, and monitoring. Findings demonstrated significantly lower performance on reading comprehension tests and executive function tasks, including planning, cognitive flexibility, updating, and monitoring for the ADHD group relative to the control. Critically, these four executive functions, separately, were also found as significant mediators of the difference observed in the reading comprehension ability between groups. When analyzed jointly, only monitoring remained a significant mediator over and above all others. Contrary to expectations, inhibition skill did not differ between groups, nor was it found to be a significant mediator, separately or jointly with other executive functions. These findings support the importance of executive functions in general and monitoring skill in particular for reading comprehension ability. Moreover, they suggest implications for the development of effective reading comprehension training and strategies suited to students with ADHD.
OPERATIONAL TRANSCONDUCTANCE AMPLIFIER FOR BIOMEDICAL EMG APPLICATION USING CMOS 90nm TECHNOLOGY

- The universe of biomedical gadgets is growing quickly with new activities and new innovations. As of now biomedical gadgets are fabricated with countless capacities, exactness, precision, minimization and usability. In portable biomedical devices, power consumption has become a serious problem due to battery life. The operational transconductance amplifier is a mostly used analog processing block. In recent years, the development of OTA with very low conductivity, low power, low voltage and improved linearity has been mainly used in biomedical applications. In this paper present a novel OTA design for biomedical EMG application with operating frequency of this application is 150Hz. The proposed design is simulated using CMOS 90nm environment with power supply of VDD is 0.35V and VSS is -0.35V.
An effective protocol for isolation and culture of mesenchymal stem cells from mouse bone marrow

Bone marrow is known as the main source of isolated mesenchymal stem cells. This study has demonstrated a protocol for isolation and culture of mesenchymal stem cells from mouse bone marrow (mBM) with minimal requirement. The cells were harvested from the tibias and femurs, and then cultured in Dulbecco’s modified Eagle’s medium supplemented with fetal bovine serum. The mBM-MSCs were isolated by media changing every 8 hours in 24 hours of culture and sub-culture. Target cells subsequently were regconized by adipogenic differentiaton posibility. The study also focused on descript a simple procedure to culture BM-MSCs and the results obtained following the procedure
t)ar atzizkidun hitzen jokabide sintaktikoaren inguruan

It is usually said that the words that take the suffix -(t)ar in the Basque language can appear either before or after the noun. A large group of speakers, however, systematically reject the first position. The present article reasons this rejection from a grammatical point of view: in the order [word with suffix -(t)ar + noun], we have a compound word of the type [noun + noun], whilst in the order [noun + word with the suffix -(t)ar], we have a mere syntactic construction [noun + adjective]. The first order shares the characteristics of compound words: proper nouns cannot form part of compounds, as pointed out by Azkue and Villasante; the words headed by the suffix -(t)ar cannot be used as qualifying adjectives and cannot be modified by the adjective huts; the compound formed by a word heade by the suffix -(t)ar can form part of a new compound. These characteristics change completely when the word with the suffix -(t)ar appears behind the noun. The conclusion drawn is that although the suffix -(t)ar creates derived nouns and adjectives, a great many speakers give it adjective value when the word with the suffix -(t)ar modifies a name that acts as nucleus in a noun phrase and, therefore, only accept one of the two orders mentioned. Another group of (more conservative) speakers, however, use both values (noun and adjective) and, as a result, accept both orders.
Status quo and challenges and future development of fire emergency evacuation research and application in built environment

Fire emergency evacuation study has been conducted for decades. In recent two decades, the fire emergency evacuation studies have been incorporating new technologies due to the high demands on efficient and safe evacuation for occupants who have various needs. The proposed fire emergency evacuation system from academic research and solutions from industry practices adopt different technologies to serve various evacuees. Therefore, this study conducts literature review to understand the status quo of current fire emergency evacuation research and practice. It shows that fire emergency evacuation studies mainly focus on the facility operation stage instead of design and construction stages. The facilities include residential buildings, education buildings, subways, shopping centers, etc. Three critical factors affect efficient and safe fire emergency evacuation in a built environment – facility physical features, fire characteristics, and human behavior. This study categories these new technologies, which are incorporated into the fire emergency evacuation research and practices within the recent two decades, into four groups: (1) Facility geometrical analysis, which includes the technologies such as BIM, GIS, VR and the combination of BIM/GIS/VR (2) Fire and smoke simulation, e.g. FDS and Pyrosim. The simulation output such as fire and smoke dynamics is incorporated into intelligent fire evacuation system (3) Crowd evacuation simulation software, e.g. Pathfinder, Massmotion; the output of simulation is used to develop personalized evacuation system (4) Indoor positioning system and mobile device/IoT technology to track and evacuate occupants intelligently. This study presents these new technologies used in the fire emergency evacuation systems and indicates that the development of an intelligent and personalized emergency evacuation system, which may track the evacuees in real time, is the future research trend.
Technology elements of behavioral energy testing of distributed information systems

Early testing of the reliability of functioning, performed before the occurrence of critical emergency situations, plays an important role in the theory and practice of monitoring and diagnosing various technical systems, including computer distributed information systems. Many checking and diagnostic methods directly or indirectly use the energy characteristics of systems, that are directly related to the work they execute, that is, their performance. The proposed elements of the technology of behavioral energy-consumption testing are based on the corresponding models and methods, supplemented by the registration and analysis of inertial temperature and operational volt/ampere characteristics of the test behavior of systems, at the model level represented by extended energy-consumption Petri nets. The elements of behavioral testing technology, proposed in this work, are distinguished by an additional set of calculated and empirical boundary temperature and volt/ampere characteristics of both systems and their components. These characteristics represent states/vertexes, positions/transitions, fragments and scenarios of operation, that are critical in terms of energy consumption, which gives grounds for their monitoring. A feature of these elements of the technology is also the possibility of determining and using natural identifying properties of energy characteristics in behavioral testing, which allows them to be used in check and recognition experiments for the reliability of functioning, both independently and in conjunction with behavioral analysis. The use of additional analysis of energy consumption by temperature and volt/ampere characteristics, as part of complex testing technologies and automatic systems of technical diagnostic, based on them, makes it possible to increase the efficiency, completeness and flexibility of behavioral online and offline testing for computer distributed information systems.
Molecular Characterization of Filenchus cylindricus () (Tylenchida: Tylenchidae) from Korea, with Comments on Its Morphology

Filenchus cylindricus (Thorne & Malek, 1968) Niblack & Bernard, 1985 was reported from the sandy rhizospheric soils of Poa pratensis and for the first time in Korea. Females and males are molecularly characterized and morphological and morphometric data supplied. Identification was made using an integrative approach considering morphological characteristics and inferences drawn from the analyses of the D2-D3 expansion segment of 28S rRNA and ITS1-5.8S-ITS2 of rRNA partial sequences. Females and males from Korea conform to the type descriptions and also to subsequent species descriptions from Iowa and Colorado USA, Sudan and Pakistan. Despite the close morphological and morphometric similarities with F. thornei (Andrássy, 1954) Andrássy, 1963, the two species can be adequately differentiated based on molecular data inference.
$\mathfrak{S}$-coalgebras determine fundamental groups

In this paper, we extend earlier work by showing that if $X$ and $Y$ are simplicial complexes (i.e. simplicial sets whose nondegenerate simplices are determined by their vertices), an isomorphism $\mathcal{C}(X)\cong\mathcal{C}(Y)$ of coalgebras over the Barratt-Eccles operad implies that the 3-skeleton of $X$ is weakly equivalent to the 3-skeleton of $Y$, also implying that $\pi_{1}(X)=\pi_{1}(Y)$.
UAV-Driven Sustainable and Quality-Aware Data Collection in Robotic Wireless Sensor Networks

Energy-aware data collection is of paramount importance for robotic and wireless sensor networks. Although static sink-aided cluster-based protocols provide energy-efficient solutions, unmanned aerial vehicle (UAV)-aided approaches can be considered as better alternatives to reduce energy consumption while data acquisition compared with static sinks. Most of the existing UAV-driven solutions have not considered a limit on the battery capacity of the UAV, which needs to be considered in a practical manner. This article investigates energy-aware data collection in robot network clusters. In each cluster, a cluster head (CH) robot allocates one collaborative task to each cluster member (CM) robot and collects data from CMs whereas a UAV collects data from CH robots by visiting a subset of them due to its battery limitation. To complement the state-of-the-art, UAV decision for visiting the subset of CHs is constrained to multiple factors including residual battery capacity, as well as locations and data qualities of all CH robots. Nonvisited CH robots use CH robots as relay nodes for data forwarding. Following upon this, by considering the problem under data hopping constraints, this article also presents a sensitivity analysis with respect to data hopping constraints. Simulations show that the proposed policy achieves zero total joint cost whereas the state-of-the-art approaches result in significantly high total joint costs. Furthermore, the proposed policy reduces the total joint cost by up to 50% with respect to the conventional approaches.
Cylinder Wakes and Transitions: Bend, Stretch, Rock & Roll

Abstract The richness of the wake structures and transitions of bluff bodies is enhanced when geometries and relative flow motions different to the generic fixed circular cylinder are involved. In this paper, an overview of the results of bluff body studies at moderate Reynolds numbers in recent years obtained by the FLAIR and IRPHE groups is presented. These include the effect on wake structure and transition due to bluff body geometry changes and of rocking and rolling of circular cylinders. In particular, the two dimensional wake structures and the order of wake transitions to three-dimensionality are found to vary enormously. Introduction The generic nature of the circular cylinder for the two-dimensional view of bluff body wakes emerged through the Universal Strouhal Number (USN), whereby the two-dimensional wake structures of different short bluff body shapes could be collapsed with respect to the vortex shedding frequency [12]. The USN is based on the velocity, which is related to the base pressure, just outside the shear layer at separation rather than the free stream velocity. The USN was also related to the distance between the free shear layers as they roll up to form vortices. A large range of bluff body shapes was studied in experiments which confirmed the USN [5].