Miracle-dz/UniFAR-FTUs huggingface dataset:
A Method for Calculating Atmospheric Radiation Produced by Relativistic Electron Precipitation

Radiation safety in the Earth's atmosphere is of particular importance to our living environment, especially at aviation altitudes. Aviation radiation has been long known to originate primarily from the galactic and solar system: galactic cosmic rays and solar energetic protons. Recent flight measurements by the Automated Radiation Measurements for Aerospace Safety experiment have uncovered another potential source for aviation radiation: Relativistic Electron Precipitation (REP) from the Van Allen radiation belts. REP can induce radiation at aviation altitudes through bremsstrahlung X‐ray production, which carries radiation down to the stratosphere and even the troposphere. In this study, using a suite of physics‐based Monte Carlo models, we characterize the effective radiation dose produced at altitudes between ground and low‐Earth‐orbit by relativistic precipitation electrons with energies between 100 keV and 10 MeV. We produce a lookup table of atmospheric radiation production that calculates the expected radiation dose for a given precipitation flux, spectrum, and pitch angle distribution. This lookup table provides results that are consistent with X‐ray measurements during radiation belt precipitation by balloon‐borne instruments in the stratosphere, and can be directly used to convert space‐borne measurements of precipitation fluxes into aviation radiation. This study represents our first attempt toward better understanding of REP's role in the atmospheric high‐altitude radiation environment.
Utilization and Study of Raw Groundnut Shell as a Source of Sound Absorbing Material

ABSTRACT Natural biodegradable materials have the potential of an alternative traditional sound-absorbing material. These materials have the advantages of low cost, light in weight, easily available, eco-friendly, and nonpolluting. Groundnut shell is a cover of the peanuts and considered an agriculture waste material that can be used in the field of noise control. This study highlights the possibility of the groundnut shell material as a sound absorption material by evaluating the acoustical properties like Air Flow Resistivity (AFR) and Sound Absorption Coefficient (SAC). Three different samples made of groundnut shell with thicknesses 10, 20, and 30 mm have been considered for the analysis. The effect of thickness and the air gap of the different samples on the acoustics parameters have been discussed. The experimental results show that the AFR decreases with increasing thickness of the sample material while a sound absorption coefficient (SAC) is found higher values at medium and high frequency (from 1000 to 4000 Hz). This study will be useful for the development of new sound absorbing material.
Life-view Scale: development and validation among a sample of Kurdish university students and lecturers

ABSTRACT This study aimed to develop and validate the Life-view Scale. In study one, a sample of 182 university students completed the questionnaire. The scale had good internal consistency (alpha = .81). Exploratory factor analysis of the initial scale resulted in five factors (satisfaction, purpose, search, direction, and doubt). Factors were significantly inter-correlated, except the Doubt factor which was not correlated with Search and Direction factors. In study two, a sample of 59 university students participated in answering the questionnaire on two occasions with an interval of 15 days. The test–retest correlation of the questionnaire was good (r = .81). In study three, a sample of 71 university lecturers completed the questionnaire alongside measures of burnout and job satisfaction. The Life-view Scale was found to be positively correlated to job-satisfaction only. In summary, the Life-view Scale was found to possess satisfactory measures of internal reliability, temporal stability, and convergent validity.
The interplay between maternal childhood maltreatment, parental coping strategies as well as endangered parenting behavior during the current SARS-CoV-2 pandemic

The SARS-CoV-2-pandemic is associated different challenges, especially for families. The disruption and challenges require parents to develop strategies to cope with the current situation. One factor that may influence how parents deal with pandemic-associated stressors are experiences of parental childhood maltreatment (CM), which represent a high risk of engaging in endangered parenting. A decisive candidate for the connection between parental CM and the transgenerational transmission could be the parental ability to employ coping strategies. Mothers of a well-documented birth cohort for investigating the pathways leading to resilience or vulnerability in the transgenerational transmission of CM were imbedded in an online “SARS-CoV-2 pandemic survey” assessing maternal ability for coping strategies and the dimension of endangered maternal parenting behavior. 91 mothers completed the online survey. To describe the maternal CM, data from a longitudinal survey were used. Our mediation analysis shows a significant positive relationship between the sum of maternal CM experiences, lack of coping strategies and endangered parenting behavior. This suggests a partial mediation of the association between CM and endangered parenting behavior as the direct effect remained significant when the maternal lack of coping strategies was included as the mediator. Parental CM is a risk factor for coping with stressful situation as well as for endangered parenting behavior. The ability to deal with stress seems to have a significant influence on the context of a possible transgenerational transmission of CM. The results underline the need to consider the unique needs of families with children and to support them as to how to overcome the current crisis.
Effects of HTPB-coating on nano-sized aluminum in solid rocket propellant performance

The modification of the solid propellants with nanosized aluminum has been studied. The nanosized aluminum has been found to improve burning characteristics of the propellants. The surface treatment of nanosized aluminum has been shown to affect the processabilty of formulations prepared. The physical properties including viscosity of uncured propellant mass was studied.
TETFUND GRANTS: EXAMINING THE IMPACT OF TETFUND FUNDING ON THE SCHOLASTIC SKILLS OF SCHOLARS

The establishment of the Tertiary Education Trust Fund is aimed at promoting education in Nigeria. It is achieving its objectives today by providing funding that enhances teaching and learning in tertiary institutions. This study aims to examine the impact of this funding on Nigerian scholars teaching and research abilities. Seventy-two academic staff of two Institutions of Higher Learning participated in the study. Data was collected using a self-developed instrument designed to ascertain Tetfund fundings influence on the lecturers motivation and commitment to teaching and research. The result of the simple regression analysis conducted revealed that Tetfund funding statistically significantly predicted teaching and research. The study concludes that Tetfund financing is crucial in teaching research in Nigerias academia. It is recommended that tertiary institutions encourage their academic staff to access the funding fully.
Non-wettable antibacterial thin film: PS/Aloe vera and PS/Acalypha indica

The water and liquid repelling materials due to their low surface energy and specific nanometer and micrometer scale roughness have particular interest due to the great variety of potential applications ranging from self-cleaning surfaces to microfluidic devices. Natural plant-based polymer hydrophobic coatings have several engineering and biomedical applications. In this study, natural plants such as Aloe vera and Acalypha indica were used for preparation of polystyrene hydrophobic film by the dip-coating method. The effects of Aloe vera and Acalypha indica extract on the morphological, structural, optical and antibacterial properties of as-prepared polystyrene thin films were studied. FTIR spectra were carried out to ascertain the presence of functional groups in the prepared polymeric film. Contact angle measurement showed that the PS/Aloe vera has higher anti-wetting property (CA = 112°) compared to PS/Acalypha indica (CA = 104°), which could be confirmed by the surface morphology analysis. Furthermore, the effective antibacterial activity against Klebsiella pneumoniae and Staphylococcus aureus was compared by agar-well diffusion method. The observed result reports, PS with Aloe vera film exhibit higher hydrophobic with antibacterial activity compared to PS with Acalypha indica film. In addition, the PS/Aloe vera coated cotton maintained their repellent properties against various liquids for 10 h, while PS/Acalypha indica coated cotton exhibit anti-wetting property for 4 h. These findings open up new avenues for the preparation of hydrophobic film for various biomedical applications.
Wearable Technology Adoption Among Romanian Students: A Structural Model Based on TAM

The Internet of Things (IoT) has gained particular attention, both from academia and from companies and industries, as a result of its characteristics and the opportunities that this technology generates for end-users and for the business environment. Thus, the creation of this network that connects the objects around us allowed optimization and improvement of activities in various fields. The adaptation and deployment of IoT in wearable smart devices has created an important market, due to the popularity, the functionality and the use of these devices in various professional and everyday activities. The purpose of this paper was to examine the adoption of wearable technology in the broader context of the development of innovations and technologies in the field of IoT. A new theoretical model based on Technology Acceptance Model (TAM) was developed and tested to identifying the relations between factors influencing the attitude towards use and the intention to use of wearable devices. A survey carried out on Romanian students provided the necessary data to test the model. The results of Structural Equation Modelling (SEM), based on the Partial Least Squares (PLS) method, led to the acceptance of eight out of the nine issued hypotheses, indicating that the three exogenous variables (perceived usefulness, perceived enjoyment and visual attractiveness of wearable devices) have a significant positive influence (with one exception) on endogenous variables (intention to use and attitude towards the use of wearable devices).
The effect of Foam Rolling and Dynamic Stretch on some physical abilities of female Handball Players

The monotonous and strenuous shoulder moving pattern during throwing may result in micro trauma and fibrous adhesions between the layers of fascia among athletes. In the last decade, self myofascial release (SMR) has gained good reputation as a way to treat these adhesions. However, there is limited data demonstrating the effects on upper body performance among athletes. Aims : The purpose was to examine the effects of an acute bout of upper body SMR with Foam Rolling as a new method for SMR or from dynamic stretch (DS), on shoulder range of motion (ROM), throwing velocity and throwing accuracy. Also to examine correlations between shoulder ROM and throwing velocity/accuracy METHODS: 20 elite female handball players (age 22.83 ± 1.52 years, weight 69.16 ± 4.62 kg) were included in the study. The study had an experimental cross-over design in which participants first performed baseline measures. They also performed SMR and DS in two different trials The trials were supervised and separated by 6 weeks. During SMR, the athletes performed a series of foam rolling exercises during 5 minutes for the muscles surrounding the shoulder joint. The same muscles were stretched for 5 minutes during the DS trial. Directly after foam rolling and DS, shoulder ROM, throwing velocity and throwing accuracy were measured using a gravity reference goniometer, radar gun and a high speed video camera. ANOVA with repeated measures and t-tests were used to analyze differences between and within groups. RESULTS: There were no statistically significant differences in either shoulder ROM, throwing velocity or throwing accuracy between the three trials. There was a moderate correlation between shoulder extension and mean accuracy (r = 0.62; p = 0.004) after DS. CONCLUSION: An acute bout of upper body SMR does not affect ROM and does not improve throwing velocity or throwing accuracy compared to baseline or DS among elite female handball players. Nor could any correlation between ROM and throwing velocity or throwing accuracy be observed. Introduction As a handball player, it is crucial to throw the ball as fast as possible with good accuracy in order to score. A well-executed training program is crucial, whereby coaches and athletes all over the world are trying to refine and optimize training programs in order to increase the athletes’ performance (Van den Tillaar, 2004). There is a wide spread use of Self Myofascial Release (SMR) among recreational gym members and professional athletes as a way to improve performance, increase range of motion (ROM) and improve recovery (Castiglione, 2008, Clark & Russell, 2009 & Boyle, 2009). During the last five years and
Identifying and counting of buildings using artificial neural network and reduced representation in high-resolution images

Abstract In this study, Hölder Exponent (HE), Variance (var) and densely populated range are measured to extract meaningful features from the high resolution (HR) images. These extracted features are considered here as the reduced representation of high resolution (HR) images. Five-layer simplified artificial neural network (ANN) architecture configured and trained using the reduced representation for building detection and counting in HR images. The scale and orientation of the movable window are changed to find an optimum bounding box of the buildings. The method is validated by applying on World View-2 pan-sharpened multispectral images having spatial resolution 0.46 m. In comparison with CNN and ResNet-18, the accuracy assessment result is quite promising (92%) with proposed method for detecting buildings in HR images. The proposed method, distinctly identified scale variant buildings and detected individual buildings even if they are in close proximity.
How are Neighborhood and Street-Level Walkability Factors Associated with Walking Behaviors? A Big Data Approach Using Street View Images

The built environment characteristics associated with walkability range from neighborhood-level urban form factors to street-level urban design factors. However, many existing walkability indices are based on neighborhood-level factors and lack consideration for street-level factors. Arguably, this omission is due to the lack of a scalable way to measure them. This paper uses computer vision to quantify street-level factors from street view images in Atlanta, Georgia, USA. Correlation analysis shows that some streetscape factors are highly correlated with neighborhood-level factors. Binary logistic regressions indicate that the streetscape factors can significantly contribute to explaining walking mode choice and that streetscape factors can have a greater association with walking mode choice than neighborhood-level factors. A potential explanation for the result is that the image-based streetscape factors may perform as proxies for some macroscale factors while representing the pedestrian experience as seen from eye-level.
A battery integrated three‐port bidirectional charger/discharger for light electric vehicles with G2V and V2G power flow capability

In this paper, a non‐isolated battery integrated three‐port bidirectional dc‐dc converter (BIBTPC) is proposed and analyzed for interfacing light electric vehicles (LEVs) with solar photovoltaic (SPV)‐fed low voltage dc distribution system (LVDDS). Depending upon the power generation, the converter can be controlled to operate in grid‐to‐vehicle (G2V) or vehicle‐to‐grid (V2G) arrangement. BIBTPC can implement maximum power point tracking (MPPT), simultaneously regulating the dc bus voltage of LVDDS. It also has an inherent feature of pulse charging and pulse discharging of the battery which improves its charging/discharging rate. The converter operation in all the possible modes is elucidated, and steady‐state analysis is performed to establish the key performance features. The guidelines for the inductor and capacitor design of the converter are also presented. The control strategy to ensure MPPT simultaneously managing the power flow among SPV, LVDDS, and LEV battery is developed and implemented. The theoretical predictions are validated experimentally on the laboratory prototype of the converter. These results are found to be in close agreement with each other.
Mediational Links for the Severity of Anorexia and Bulimia a Path Analysis Study

Background: to date there is empirical evidence on the associations between anorexia and bulimia nervosa with psychopathological constructs (anxiety, depression, perfectionism, emotional dysregulation) and sociodemographic characteristics (gender and place of origin). However, there are no studies that analyze the underlying mechanisms between these variables, which allow estimating the direct and indirect effects, including the possible mediational relationships in causal models of path analysis. Method: the study had a sample of 918 Ecuadorian university students from three places of origin. Results: The causal path analysis model indicates a significant and positive association between the variables depending on the place of origin of the participants. Likewise, the model obtained an adequate goodness of fit and good predictive capacity. Conclusions: The data suggest that the model of underlying relationships between the study variables for the risk of ED, anorexia nervosa and bulimia nervosa, is different depending on the place of origin. It is indicated for future studies to estimate the criterion in the clinical population and with repetitive measures over time. We believe that the study will provide a starting point in the design, implementation and evaluation of prevention programs for eating disorders at the primary action levels.
Embedded liberalism or embedded nationalism? How welfare states affect anti-globalisation nationalism in party platforms

Abstract In industrialised democracies, welfare state provisions have offsetting implications for anti-globalisation nationalism, central to the position taking of populist radical-right parties. On the one hand, social protection has an ‘embedded liberalism’ effect, mitigating economic insecurities associated with globalisation and thereby dampening anti-globalisation nationalism. On the other hand, social protection has an ‘embedded nationalism’ effect, awakening worries that globalisation may undermine hard-won provisions, thereby deepening anti-globalisation. This paper argues and finds evidence that which of these dynamics predominates depends on the particular kind of anti-globalisation debated and on the particular party family doing the debating. Welfare effort does generally dampen anti-globalisation nationalism, but it can deepen more than dampen anti-globalisation with respect to immigration and EU-integration that more directly impact existing national welfare provisions. Welfare effort can also deepen more than dampen anti-globalisation among radical-right and radical-left parties taking issue-ownership of anti-globalisation and of protecting national welfare-state competencies from global pressure.
A Review of Cyberbullying and Cybervictimization: Taxonomy, Challenges, Limitations, and Recommendations for Future Researchers

Cyberbullying and cybervictimization is vital and recent issue that still require further investigations. It is classified as a global problem, serious risk and danger that challenging researchers in term of assessment, nature and measuring that demand massive effort to limit and reduce its prevalence and consequences. The aim of the study is to underline challenges, limitations, and recommendations that related to cyberbullying and cybervictimization that need to be explored and investigated in greater depth in future researches. The current study intends to analyse the twenty- seven previous studies and build taxonomy that highlights gabs and shortage of the phenomena into four main sections: research, programs, methodology and theories and model. Based on researcher analysis there are four main sections that present the challenges and limitations, whereas eleven sub-sections and eight divisions give more details about these challenges and limitations. Discussion: The result of the review present that more factors need to integrate and re-investigate whereas theories need to link, and methodology aspects require to develop. In addition, new aspects and open areas that demand investigate in future. This review and taxonomy provide a unique opportunity to develop and create additional research fields. Received: 8 March 2021 / Accepted: 20 April 2021 / Published: 17 May 2021
Dental care course and oral quality of life in patients with X-linked hypophosphatemia: a qualitative exploration

Background. X-linked hypophosphatemia (XLH) is a rare, hereditary, progressive, and lifelong phosphate wasting disorder characterized by pathological elevations in fibroblast growth factor (FGF) 23 serum concentration and activity. In the oral cavity, spontaneous abscesses can occur often without any clinical signs of alteration of the causal tooth. The objective of our study was to evaluate the readability of the oral care pathway and the oral quality of life of patients followed in an expert oral medicine department located within a Parisian hospital and working in close collaboration with an endocrinology department expert in this pathology. Methods. This study employed a qualitative descriptive design including semi-structured interviews using guiding themes. Results. Twenty-one patients were included in the study, with an average age of 28 years. The topics discussed exceeded the initial objectives as the patients largely addressed the alteration of their oral and general quality of life, a very chaotic oral health care pathway with oral health professionals not aware of their pathology, consequences on their social, professional, and school integration and access to care complicated by financial factors. Patients reported the importance of having a multidisciplinary team around them, including medical and dental professionals.Conclusions. The variety of manifestations in patients with XLH necessitates a high coordination of multidisciplinary patient care to optimize quality of life and reduce disease burden. Education of oral health professionals on this disease is essential to enable patients to receive the best possible care as early as possible.