Miracle-dz/UniFAR-FTUs huggingface dataset:
Developing a novel machine learning method to predict the compressive strength of fly ash concrete in different ages

Estimating the compressive strength of concrete before fabricating, it has been one of the most important challenges because designing a mixture proportion by experimental methods needs expert workers, consumes energy, and wastes materials. Therefore, in this study, the influences of materials and the age of samples on the compressive strength of fly ash concrete are investigated, and a novel method for predicting the compressive strength is presented. To this end, water cycle algorithm and genetic algorithm are utilized, and their outcomes are compared with the classical regression models. Various performance indicators are used to gauge the accuracy of the models. By analyzing the results, it is comprehended that the water cycle algorithm is the most accurate model according to all performance indicators. Besides, the outcomes of water cycle algorithm and genetic algorithm are by far better than those of classical methods. The mean absolute error of water cycle algorithm, genetic algorithm, linear regression, partial-fractional regression, and fractional regression are 3.01, 3.12, 5.47, 9.70, and 5.37 MPa for training data and 2.90, 3.44, 5.47, 9.70, and 5.37 MPa for testing data respectively. Furthermore, the water cycle algorithm is the only algorithm which its mean absolute error of testing data is less than that of training data. At last, it was concluded that the mixture with less than 35% fly ash (weight of the binder) had maximum amounts of compressive strength. Also, the compressive strength of concrete decreased significantly as the amount of fly ash increased more than this definite level.
On Green and Naghdi Thermoelasticity Model without Energy Dissipation with Higher Order Time Differential and Phase-Lags

In the present work, a modified model of heat conduction including higher order of time derivative is derived by extending Green and Naghdi theory without energy dissipation. We introduce two phase lag times to include the thermal displacement gradient and the heat flux in the heat conduction and depict microscopic responses more precisely. The constructed model is applied to study thermoelastic waves in a homogeneous and isotropic perfect conducting unbounded solid body containing a spherical cavity. We use the Laplace transform method to analyze the problem. The solutions for the field functions are obtained numerically using the numerical Laplace inversion technique. The results are analyzed in different tables and graphs and compared with those obtained earlier in the contexts of some other theories of thermoelasticity.
Weak Convergence of Iterative Approximation for Fixed Points of A Monotone α-nonexpansive Mapping

In this paper, a modified approximation method is introduced for finding the fixed point of α-nonexpansive mapping in a uniformly convex Banach space with a partial order. Moreover, the weak convergence theorems of the fixed point of α-nonexpansive mapping are established under Opial and weak-Opial conditions, respectively. Topic classification: 47H05; 47H09; 47H10 CLC number: O177.91 Document code: A
Corrigendum: Feasibility studies of an all-optical and compact γ-ray blaster using a 1 PW laser pulse (2019 Plasma Phys. Control. Fusion 61 084009)

Recently, the all-optical Compton laser backscattering setup has become a promising approach in producing high-quality γ -rays. However, this method only produces a single γ -ray beam. In this paper, we report on the numerical study for the feasibility of producing double γ -ray beams using a 1 PW laser. Our method utilizes the all-optical setup with a structured solid target as a re ﬂ ecting foil. The laser pulse is re ﬂ ected by the foil after propagating a few millimeters into the underdense plasma. The re ﬂ ected laser intensity is strongly boosted by the foil to invoke a radiation reaction as nonlinear Compton backscattering. Subsequently, the electron bunch traverses the foil, generating bremsstrahlung. Our simulation results show that a collimated γ -ray beam from the nonlinear Compton backscattering with the peak brilliance of 6.7  ×  10 20 photons / s / mm 2 / mrad 2 / 0.1%  BW at 15 MeV is produced. Another collimated γ -ray beam with the peak brilliance of 2.1  ×  10 6 photons / s / mm 2 / mrad 2 / 0.1%  BW is produced by bremsstrahlung. The combined γ -ray beams act as a blaster and are of particular interest in nuclear interactions induced by high-energy photons.
O espelho de Glatzel na avaliação da permeabilidade nasal em adultos

Objective The Glatzel mirror (Gm) is used at speech therapy offices for a prompt evaluation of the nasal patency. It has been described in 1898 by Zwaardemarker. However, there is no literature of validation studies. This study aimed the verification of the reproducibility of the Gm and the correlation between the condensation area and the subjective perception of nasal patency. Methods Twenty-five individuals were evaluated for five consecutive minutes (475 measurements per individual), every half-an-hour during four hours, every day, in the beginning of the afternoon, for five days, and every Thursday during five consecutive weeks. A visual analog scale was used to evaluate the breathing perception within the hour, day and week periods. Results The coefficient of correlation between the subjective perception of the nasal patency and the condensation area of the right and left areas sumed was r=0.04 (p=0.3761). The left was r=0.08 (p=0.0984) and the right was r=0.05 (p=0.2862). The medium unilateral and total coefficients of variation were, respectivelly, less then 15% and 12%, independently of the interval of test-retest timing. Conclusion No significant correlation has been noticed between the subjective perception and the nasal condensation area. The unilateral variability was higher than the total values (right + left) and there was no difference in the variability of nasal condensation areas on different moments in time. Key-words: Mirror of Glatzel, nasal patency, breathing perception, nasal condensation area, nasal function
Avaliação bioquímica nutricional de animais treinados submetidos à desnutrição e recuperação nutricional.

The malnutrition, which represents an important world health problem, and the nutritional recovery, needs special attention in course of metabolic changes involved in those processes. A complete nutritional biochemistry evaluation of animals in recovery state was not done yet, and the knowledge about the effects of exercise on these organisms is very incomplete. The lack of knowledge of the stress intensity provoked by training, defined a choosing for a training protocol that could be integrally fulfilled by the animals, in spite of it could not bring changes on the analyzed parameters. The aim of this work was to verify whether malnutrition causes modifications in rat’s metabolic profile and if nutritional recovery associated or not with exercise (swimming, 30 minutes/day, five days/week during 8 weeks) can interfere in this process. Fifty six Fisher female rats (28 days old) were divided into six groups: control sedentary (CS), control trained (CT), recovered sedentary (RS), recovered sedentary (DT), malnourished sedentary (MS) and malnourished trained (MT). The animals were kept in individual cages and received water and food ad libitum. After 9 weeks, the animals were anesthetized and sacrificed. Results were compared by two-way ANOVA (p ≤ 0.05). It was observed that recovered animals had higher weight gain and food efficiency. Total cholesterol and fractions concentrations were higher in the malnourished animals and that training reduced cholesterol level only in recovery animals. The values of Paraoxonase activity show that the HDLs of malnourished animals could be not doing the antioxidant protection that was expected for this lipoprotein. The evaluation of the hepatic function parameters show a liver injury of malnourished animals, fact that not occurred on the recovered ones. But the evaluation of renal function parameters suggest that even recovered and malnourished animals had renal injury. In conclusion, nutritional recovery did not revert the actual damages made by malnutrition only in the kidney function and the exercise protocol applied in this experiment did not improve nor harmed the nutritional recovery.
Mass transfer and possible third-body effect on the period variations of the near-contact binary CN And

We present a period analysis of the near-contact binary CN And using all available times of light minima. It is revealed that the orbital period exhibits a long-term decrease as well as a small-amplitude cyclic oscillation. This result suggests that the secular period decrease at the rate of dP/dt = −1.4017 × 10−7 d yr−1 is caused by a combination of mass transfer and angular momentum loss due to magnetic braking. The periodic variation with an amplitude of A = 0.0036 d and a period of Pmod = 28.3542 yr should be rooted in the light-time effect of a third body, rather than cyclic magnetic activity.
FAKTOR YANG BERHUBUNGAN DENGAN KEJADIAN TUBERKULOSIS PADA ANAK (STUDI DI BALAI KESEHATAN PARU MASYARAKAT SEMARANG)

Mycobacterium tuberculosis is an acid-resistant bacterium that caused tuberculosis. The children can suffered tuberculosis by direct transmission of adult positive BTA patients. Analytic observational study design with the type of case control studies used in this study. Samples were pediatric patients from January 2013 until December 2014. The samples used purposive sampling method that consist of 68 samples cases and control samples. Data were obtained through interviews and direct observations then analyzed with Chi-Square method. The results of this study the majority of patients at the age of 3 years (51,7%), the majority were female (55,2%), already immunized BCG (82,6%), and moderate nutritional status (40,7%). Almost all patients have no contact with adult smear (64,5%). Home environment is already qualified population density (99,4%), level of humidity (99,4%), the presence of ventilation (75,6%), and the composition of the floor (100%). While the lighting levels are not qualified (99.5%). Most of the respondents are in the home environment family members who smoke (61.6%). Education of parents level largely completed high school (41,9%), relatively good knowledge about tuberculosis (98%), and almost a whole does not work just as housewives (89.5%) with family incomes above the minimum wage Semarang (53.4%). The results of Chi-Square test showed that there is a relationship between the gender of the child (OR=0,445;CI95% = 0,241-0,821) and the presence of smokers (OR=2.007;CI95% = 1.074-3.751) and the incidence of tuberculosis.
Chronic pain: assessing and enhancing readiness to adopt a self-management approach

The aim of the research was to develop, implement and evaluate an intervention designed specifically to increase rates of engagement and adherence to self-management activities for chronic pain in a non pain-clinic population. The research comprised a series of four studies. Study 1, a questionnaire survey, explored the utility of the Transtheoretical model as a theoretical framework for assessing readiness to adopt a self-management approach to chronic pain and for developing appropriate treatment interventions. The findings indicated that the current application of the Transtheoretical model to chronic pain, the Pain Stages of Change model (Kerns et al. 1997) may not be useful in its current form. As such, the model required further adaptation in order to inform the development of interventions designed to increase engagement in treatment and adherence to self management activities. Study 2 comprised a series of qualitative interviews which expanded our conceptualisation of what constitutes a self-management approach and how best to assess and enhance readiness to adopt this type of approach. The qualitative data highlighted the discrepancy between the theoretical understandings of practitioners and the lived experience of those with chronic pain. Due to the lack of a clear definition of what constitutes a self management approach to pain, the apparent instability of the construct, the lack of explanatory value of stages of change and the range of activities inherent in a self-management approach, it was determined that traditional psychometric assessment may not be useful in treatment planning. The findings of Study 2a were used to formulate and develop an expanded model incorporating both stages of change and processes of change in relation to beliefs about specific self-management activities and current self management behaviour. The expanded model led to the development of the Readiness to Adopt a Self-Management Questionnaire (RASMAP-Q) in Study 111 2b. The questionnaire was designed to be administered in conjunction with standard assessment procedures using Motivational Interviewing techniques, with the aim of enhancing readiness to change prior to treatment. Study 3 comprised a randomised controlled trial to evaluate the efficacy of the RASMAP-Q intervention. The findings clearly demonstrate that the intervention increased rates of engagement in pain management workshops and adherence to treatment recommendations for up to six months for four of five self-management activities. The findings of the research as a whole indicates that the Transtheoretical model can be adapted to facilitate assessment and enhancement of readiness to adopt a self-management approach to pain in a community-based population.
The generation of mechanical work by overturning tropical circulations

Global climate models inadequately represent aspects of tropical convection; many studies that underpin the parametrisation of convection incorporate the interactive effects of largescale circulations using the Weak Temperature Gradient or Weak Pressure Gradient approximations. This thesis examines the thermodynamic consequences of these approximated circulations, in particular for the generation of mechanical work that they imply. It develops approximate analytical formulae for conversions from potential to kinetic energy by circulations generated by the Weak Temperature Gradient approximation and explores the energetic processes involved. Furthermore, a recently proposed isentropic analytical framework for the mechanical energy budget is extended and applied to results from two coupled cloud resolving models. This confirms that the use of the Weak Temperature Gradient approximation does not introduce any thermodynamic anomalies, and the results produced by the cloud resolving models provide confirmation of the analytical results derived earlier. Scaling arguments for the components of the mechanical energy budget are presented. The same technique is also applied to re-analysis data to show how the mechanical energy generated by circulations such as the Walker and Hadley circulations can be calculated from this data.
Determining Electron Temperature and Density in a H ii Region Using the Relative Strengths of Hydrogen Radio Recombination Lines

We have introduced a new method of estimating the electron temperature and density of H ii regions by using single-dish observations. In this method, multiple hydrogen radio recombination lines of different bands are computed under the assumption of low optical depth. We use evolutionary hydrodynamical models of H ii regions to model hydrogen recombination line emission from a variety of H ii regions and assess the reliability of the method. According to the simulated results, the error of the estimated temperature is commonly <13%, and that of the estimated density is <25% for a <1% uncertainty of the observed line fluxes. A reasonable estimated value of electron density can be achieved if the uncertainty of the line fluxes is lower than 3%. In addition, the estimated values are more representative of the properties in the relatively high density region if the gas density gradient is present in the H ii region. Our method can be independent of the radio continuum observations. But the accuracy will be improved if a line-to-continuum ratio at millimeter wavelengths is added to the estimation. Our method provides a way to measure the temperature and density in ionized regions without interferometers.
Adaptive Service Offloading for Revenue Maximization in Mobile Edge Computing With Delay-Constraint

Mobile edge computing (MEC) is an important and effective platform to offload the computational services of modern mobile applications, and has gained tremendous attention from various research communities. For delay and resource constrained mobile devices, the important issues include: 1) minimization of the service latency; 2) optimal revenue maximization; and 3) high quality-of-service requirement to offload the computational service offloading. To address the above issues, an adaptive service offloading scheme is designed to provide the maximum revenue and service utilization to MEC. Unlike most of the existing works, we consider both the delay-tolerant and delay-constraint services in order to achieve the optimized service latency and revenue. Furthermore, we consider the different priorities to prioritize the edge services for optimal service offloading. We formulate the proposed scheme mathematically. Simulation results are presented to demonstrate the effectiveness of the proposed adaptive service offloading scheme over other existing state-of-the-art solutions, in terms of service latency, utility value, revenue, and utilization.
Sleep Homeodynamics And Wellbeing In Asymptomatic Hiv-Seropositive African American Women

SLEEP HOMEODYNAMICS AND WELLBEING IN ASYMPTOMATIC HIVSEROPOSITIVE AFRICAN AMERICAN WOMEN by TABETHA LYNN GAYTON December 2013 Advisor: Hossein N. Yarandi, PhD Major: Nursing (Urban Health) Degree: Doctor of Philosophy BACKGROUND: HIV-related sleep disruption is a common complaint of persons with HIV infection. With the demographical shifts, African American women have now emerged as one of the fastest growing HIV populations today, yet they remain a vulnerable and underrepresented population in the sleep literature. OBJECTIVE: The purpose of this pilot study was to explore the dynamics of HIV-related sleep disruption and wellbeing in asymptomatic HIV-seropositive AA women of childbearing age within the context of a holistic, theoretical substruction from Myra Levine’s Conservation Model (1967). The rationale for the proposed study was to provide a foundation of both the objective and subjective experience of HIV-related sleep disruption, which as a stressor can affect wellbeing. METHODS: A descriptive correlational design was used to examine the immunological integrity, sleep/wake rhythm, sleep quality, daytime sleepiness, IL-6 rhythm, and quality of life in 20 asymptomatic HIV-seropositive African American women receiving care at Wayne State University Physicians Group Infectious Diseases Clinic in Detroit, MI. In this 4-day protocol, measures included CD4 cell count, HIV RNA viral load, wrist actigraphy, Pittsburgh Sleep
Adaptive Fuzzy Nonsmooth Backstepping Output-Feedback Control for Hypersonic Vehicles With Finite-Time Convergence

It is commonly believed that uncertainties are obstacles to the tracking performances of flexible air-breathing hypersonic vehicles (FAHVs). In addition, the estimation of unmeasured states in an FAHV makes this issue much more complicated. To deal with these difficulties, this article explores a novel adaptive fuzzy nonsmooth backstepping output-feedback control scheme for the FAHV with closed-loop finite-time convergence. First, to approximate the unknown dynamics of the FAHV, some function approximators are constructed by utilizing an interval type-2 (IT2) fuzzy logic system. On this basis, a fixed-time convergent adaptive IT2 fuzzy observer is designed to estimate the unmeasured flight path angle and the unmeasured angle of attack of the FAHV accurately and rapidly. Consequently, the estimation errors of the designed observer are convergent in a fixed time independent of their initial estimation errors. Furthermore, based on the estimated states, velocity and altitude tracking controllers are designed by using a finite-time adaptive IT2 fuzzy nonsmooth backstepping control technique, which avoids the problem of “explosion of complexity” in traditional backstepping methods. Subsequently, rigorous Lyapunov stability analysis is conducted to show the finite-time convergence of the closed-loop signals of the FAHV control system. Finally, the robustness and superiority of the proposed control scheme is validated by several simulations in representative scenarios.
Almost sure stability of second‐order nonlinear stochastic system with Lévy noise via sliding mode control

The almost sure stability of second‐order nonlinear stochastic system with Lévy noise is studied by sliding mode control method. A conventional linear sliding mode surface is first constructed, by employing stochastic analysis technique combined with Lyapunov function method, sufficient conditions are established to ensure the almost sure stability of the system dynamics. Then, a nonsingular terminal sliding mode control technique is used for our system, corresponding controller is designed to guarantee the desired performance. Finally, two examples are given to show the validity of our results.
Physical Layer Security of Multiuser Multirelay Hybrid Satellite-Terrestrial Relay Networks

In this paper, we study the physical layer security of a downlink hybrid satellite-terrestrial relay network (HSTRN), where a multi-antenna satellite communicates with multiple terrestrial destinations via multiple cooperative relays in the presence of multiple eavesdroppers. We investigate the secrecy performance of the considered HSTRN by employing two classic cooperative protocols, namely, amplify-and-forward and decode-and-forward for two intercepting scenarios at eavesdroppers, i.e., non-colluding and colluding eavesdroppers. For both these cooperative protocols, we present opportunistic user-relay selection criteria and then derive novel and accurate expressions of the secrecy outage probability (SOP) by adopting Shadowed-Rician fading for satellite links and Nakagami-m fading for terrestrial links. Furthermore, in order to extract useful insights on the system design, we obtain the tractable asymptotic SOP expressions at high signal-to-noise ratio regime. Finally, we provide the numerical and simulation results to validate our analysis and highlight the impact of various channel/system parameters on the secrecy performance of the considered HSTRN.
Progress in cancer control: the Alan Coates effect

This issue of Cancer Forum is dedicated to Alan Coates as an acknowledgement of the achievements and contributions of one of Australia's foremost figures in cancer research, management and control. The authors introduce the articles and conclude that Alan's major contributions to cancer research are particularly: the management and support of clinical trials; the treatment, care and support of people with cancer - both as a clinician and an advocate; public awareness and understanding of cancer; and enhancing Government funding and commitment to improving cancer control in this country. (non-author abstract)