Miracle-dz/UniFAR-FTUs huggingface dataset:
Formulation and evaluation of bio-mosquito repellent air freshener gel from oil extract of cymbopogon citratus (DC.) Stapf (lemon grass) plant.

Synthetic based mosquito repellents pose varying degrees of threats to public health in most developing nations. The developments has necessitated the need for environmentally friendly alternatives, which will have non-toxic, and biodegradable attributes. In this work, a mosquito repellent gel formulation was prepared from the essential oils of Cymbopogon citratus (DC.) Stapf (lemon grass) extracted using a steam distillation system. The yields of the extracted oils were determined and calculated under varying conditions. The oil extract was then purified in the micro column parked with silica gel and characterized using Gas Chromatography-Mass Spectrometry (GC-MS). The GC-MS analysis of the essential oil revealed the presence of β-pinene, isoneral, nerolidol and squalene chemical constituents. The optimized gels were evaluated for their appearance, pH, spreadability, macroscopic stability test, swelling index, and hedonic evaluation. The mosquito repellent potential was simultaneously compared with the positive control ‘Odomos’, a commercial gel sold in the open market within Jos, Plateau State, Nigeria by varying the repellency time. The outcome of the evaluations confirmed that the formulated gels were stable with normal skin pH. The hedonic test indicated that formulation F5 is the most potent gel with a C. citratus oil concentration of 5% in the formulation. This gel formulation promises to be an environmentally sustainable alternative for repelling mosquitoes.
ViF-GTAD: A new automotive dataset with ground truth for ADAS/AD development, testing, and validation

A new dataset for automated driving, which is the subject matter of this paper, identifies and addresses a gap in existing similar perception datasets. While most state-of-the-art perception datasets primarily focus on the provision of various onboard sensor measurements along with the semantic information under various driving conditions, the provided information is often insufficient since the object list and position data provided include unknown and time-varying errors. The current paper and the associated dataset describe the first publicly available perception measurement data that include not only the onboard sensor information from the camera, Lidar, and radar with semantically classified objects but also the high-precision ground-truth position measurements enabled by the accurate RTK-assisted GPS localization systems available on both the ego vehicle and the dynamic target objects. This paper provides insight on the capturing of the data, explicitly explaining the metadata structure and the content, as well as the potential application examples where it has been, and can potentially be, applied and implemented in relation to automated driving and environmental perception systems development, testing, and validation.
Characteristic Analysis of the Magnetic Variable Speed Diesel–Electric Hybrid Motor With Auxiliary Teeth for Ship Propulsion

To improve the reliability and continuous navigation of ship propulsion, a magnetic variable speed diesel–electric hybrid motor with auxiliary teeth for ship propulsion is proposed in this article. The inner rotor permanent magnet of the motor adopts an eccentric structure and is magnetized by the Halbach array. The auxiliary teeth are inserted into the stator, which not only has the function of magnetic regulation but also can realize phase-to-phase isolation. Moreover, it can increase the reliability of the motor. The working modes of the motor in the marine propulsion system mainly include diesel engine driving mode, electric propulsion mode, and hybrid propulsion mode. In this study, finite element software is employed to build the motor's parametric model. According to the results of comprehensive sensitivity analysis, the electromagnetic torque and torque ripple are optimized by combining evolutionary algorithm and response surface method. Finally, a prototype is manufactured and an experimental platform is built. The experimental results show that the motor exhibits excellent dynamic response performance, a small torque ripple, a good sinusoidal back electromotive force, and low loss.
Consumer Behavior Shifting in the Era of Disruption in Indonesia

Purpose: This study is aimed at knowing and understanding the changes of the business organizations relating to their marketing strategies in Indonesia and its affecting factors Theoretical Framework: the business organizations change because of the external factors, namely disruptive technology that transforms the conventional business transaction into the online business transaction. Due to the communication technology advances, most of the consumers prefer to conduct the online purchase; accordingly most Indonesian business organizations provide the online purchase transaction means. This, then, causes shifting consumer behavior from the face to face purchase transaction into the online purchase transaction. Design/methodology/approach: this research is based on the quantitative approach in which the problem statement is solved using statistical analysis in the forms descriptive explanation and hypothesis testing . Besides, the meta-analysis is used to trace back previous similar studies from which the writer use as theoretical references and supporting findings. Hypothesis testing is done using Pearson Product Moment correlation. Findings: From the research, the writer finds the following matters: 1) currently, the Indonesian consumers prefer the online purchase compared to face to face one; 2) the shifting of consumer behavior from the conventional behavior into the online one triggers changes to the business organization; 3) the most affected aspect of business organization is the marketing strategy that conform to the online consumer behavior; 4), due to the online demand of the Indonesia consumers, most of big companies in Indonesia develop the online services. Thus, it can be concluded that there is a significant relationship between consumer behavior shifting from the conventional behavior into the online one with the business organizational changes in Indonesia in connection to the online marketing strategy. Research, Practical & Social implications: This study give impact on how the business organizations in Indonesia should provide better services to their consumers, especially in buying transaction that will be conducted by respective consumers. So the consumers will obtain more satisfaction. Originality/value: This study gives contribution of further researches that will be done by other researchers relating to the online consumer behavior.
Hierarchical Universal Matrices for Curvilinear Tetrahedral H(curl) Finite Elements With Inhomogeneous Material Properties

A general method for calculating mass and stiffness matrices of $ H(\mathop {\mathrm {curl}})$ -conforming finite elements (FEs) is proposed. It applies to curvilinear geometries and/or inhomogeneous materials, preserves the nullspace of the curl operator, and is computationally efficient. In the FE integrals, the terms incorporating the effects of geometry and materials are expanded in a series of multivariate polynomials. As a result, the element matrices can always be integrated analytically by means of predefined universal matrices. The mapping from the reference element to the physical configuration is done by suitable forms of the Piola transformation so that the resulting FE bases are guaranteed to preserve the nullspace of the curl operator. A mathematical proof, including the curvilinear case, is included. The suggested approach features a representation limit: When the metric expansion is continued beyond a critical order, which is determined by the order of the FE basis, the truncation error becomes zero. Hence, the number of universal matrices is bounded, and the sole source of error is the numerical calculation of the expansion coefficients for the metric terms. The method is validated by numerical examples, and its computational efficiency is demonstrated by a comparison to competing approaches.
Correlation effects and quantum oscillations in topological nodal-loop semimetals

We study the unique physical properties of topological nodal-loop semimetals protected by the coexistence of time-reversal and inversion symmetries with negligible spin-orbit coupling. We argue that strong correlation effects occur at the surface of such systems for relatively small Hubbard interaction $U$, due to the narrow bandwidth of the ``drumhead'' surface states. In the Hartree-Fock approximation, at small $U$ we obtain a surface ferromagnetic phase through a continuous quantum phase transition characterized by the surface-mode divergence of the spin susceptibility, while the bulk states remain very robust against local interactions and remain nonordered. At slightly increased interaction strength, the system quickly changes from a surface ferromagnetic phase to a surface charge-ordered phase through a first-order transition. When Rashba-type spin-orbit coupling is applied to the surface states, a canted ferromagnetic phase occurs at the surface for intermediate values of $U$. The quantum critical behavior of the surface ferromagnetic transition is nontrivial in the sense that the surface spin order parameter couples to Fermi-surface excitations from both surface and bulk states. This leads to unconventional Landau damping and consequently a na\"{\i}ve dynamical critical exponent $z\ensuremath{\approx}1$ when the Fermi level is close to the bulk nodal energy. We also show that, already without interactions, quantum oscillations arise due to bulk states, despite the absence of a Fermi surface when the chemical potential is tuned to the energy of the nodal loop. The bulk magnetic susceptibility diverges logarithmically whenever the nodal loop exactly overlaps with a quantized magnetic orbit in the bulk Brillouin zone. These correlation and transport phenomena are unique signatures of nodal-loop states.
N >= 4 Supergravity Amplitudes from Gauge Theory at Two Loops

We present the full two-loop four-graviton amplitudes in N = 4, 5, 6 supergravity. These results were obtained using the double-copy structure of gravity, which follows from the recently conjectured color-kinematics duality in gauge theory. The two-loop four-gluon scattering amplitudes in N = 0, 1, 2 supersymmetric gauge theory are a second essential ingredient. The gravity amplitudes have the expected infrared behavior: the two-loop divergences are given in terms of the squares of the corresponding one-loop amplitudes. The finite remainders are presented in a compact form. The finite remainder for N = 8 supergravity is also presented, in a form that utilizes a pure function with a very simple symbol.
Palestinian EFL Students' Perceptions of Using Edmodo in Developing their Writing Skills

The present study explored Palestinian EFL students’ perceptions towards the use of Edmodo in developing their writing skills at Palestine Ahliya University, Bethlehem. Sixteen sophomore English major students taking the Oral Communication II course in the Spring Semester 2019 - 2020 served as the participants of the study. The researchers adopted a mixed methodological approach. A questionnaire consisting of 27 items was adapted by the researchers for the purpose of eliciting students’ perceptions towards the use of Edmodo in developing their writing skills and the barriers they faced while using the platform. In addition, in-depth qualitative data was gathered from students' written responses to an end-of-course assignment posted on Edmodo. In general, the results of the study revealed that students had positive perceptions towards using Edmodo in terms of writing development and collaborative learning. However, it is worth noting that several participants reflected negative responses which resulted from the technological difficulties and their limited experiences with Edmodo.
Study of the Effects of Physical-Activity Practice and Adherence to the Mediterranean Diet on Emotional Intelligence in Elementary School Education Students

Research shows that regular physical exercise and a healthy lifestyle have a beneficial effect on the health of adolescents. Other studies have also shown that gender is also a determining factor when it comes to leading an active and healthy lifestyle. The aims of this study are (a) to develop a structural-equation model formed by the variables of emotional intelligence, physical-activity practice, and adherence to the Mediterranean diet and (b) to consider that model through a multigroup analysis. A descriptive, comparative, and cross-sectional study was carried out. The sample consisted of 567 primary school students. The KIDMED, PAQ-C, and TMMS-24 questionnaires were used for data collection. We found that there are differences in the effects of the practice of physical activity and adherence to the Mediterranean diet on the emotional domain. We also concluded that, during adolescence, gender is a key element in acquiring a healthy and active lifestyle.
A power-sharing perspective on employees’ participatory influence over organizational interventions: conceptual explorations

A participatory approach is widely recommended for organizational interventions aiming to improve employee well-being. Employees’ participatory influence over organizational interventions implies that managers share power over decisions concerning the design and/or implementation of those interventions. However, a power-sharing perspective is generally missing in organizational intervention literature. The aim of this paper is therefore broaden the picture of the mechanisms that influence, more or less, participatory processes by conceptually exploring this missing part to the puzzle. These conceptual explorations departs from both an empowerment and a contingency perspective and results in six propositions on what to consider in terms of power-sharing strategies, reach, amount, scope, culture and capacity. Implications for research, as well as for organizations and practitioners interested in occupational health improvements, are then discussed. Especially, the importance of aligning power-sharing forms with the needs of the participating employees, and taking factors that can facilitate or hinder the power-sharing process into consideration, are stressed. The importance of training managers in power-sharing practices and supporting a participatory process is also highlighted.
ESTUDO COMPARATIVO DA RESISTÊNCIA AO CISALHAMENTO DE BRÁQUETES METÁLICOS COLADOS COM CIMENTOS DE IONÔMERO DE VIDRO REFORÇADOS COM RESINA

O objetivo deste estudo foi avaliar comparativamente a resistencia ao cisalhamento da uniao de braquetes metalicos colados com os cimentos de ionomero de vidro reforcados com resina Fuji Ortho LC (GC America Corporation, Tokyo, Japan) e Ortho Glass LC (DFL, Rio de Janeiro, Brasil) em esmalte sem condicionamento e condicionado com acido fosforico a 37%. Foram utilizados 75 incisivos inferiores permanentes bovinos divididos em cinco grupos (n=15). No Grupo 1 (controle), a colagem foi realizada com Transbond XT seguindo as recomendacoes do fabricante. Nos Grupos 2 e 3, os braquetes foram colados com Fuji Ortho LC sem condicionamento e com condicionamento, com acido forforico 37%. Nos Grupos 4 e 5, a colagem foi realizada com Ortho Glass LC, nas mesmas condicoes dos grupos anteriores. 24 horas apos a colagem realizou-se o ensaio de cisalhamento de toda amostra a velocidade de 0,5mm por minuto. Os resultados (MPa) mostraram nao haver diferencas estatisticas entre os grupos 1 e 3 (p>0,05). Entretanto estes grupos foram estatisticamente superiores aos demais (p 0,05).
Quantum Measurement with Atomic Cavity Optomechanics

A cloud of ultracold atoms trapped within the confines of a high-finesse optical cavity shakes from the pressure of the light that probes it. This form of measurement backaction, a central component of quantum measurement theory, is the subject of this dissertation. Enlisting the collective motion of ultracold atoms as the mechanical degree of freedom in a cavity optomechanical system, we reach settings cold and quiet enough to allow for the effects of measurement backaction to manifest. We report predictions for and experimental observa- tions of the Standard Quantum Limit for force sensitivity, optical ponderomotive squeezing, and the possibility of complex squeezing through generalized optical correlations.
Adaptive Wavelet Methods for Nonlinear Boundary Value Problems with Dirichlet Boundary Conditions

Motived by the solution process of a PDE constrained control problem, solutions of the constraining PDE must be calculated repeatedly. Therefore it is indispensable to develop and employ most efficient solution schemes for the constraining PDE. In o case the constraint is a nonlinear PDE and the control is excerted through Dirichlet conditions on part of the boundary. The resulting (primal) system is a boundary value problem of the kind
Deuterium Fractionation upon the Formation of Hexamethylenetetramines through Photochemical Reactions of Interstellar Ice Analogs Containing Deuterated Methanol Isotopologues

Hexamethylenetetramine (HMT) is a representative product after the photolysis of interstellar ice analogs containing methanol followed by warming-up to room temperature. Since interstellar methanol is often significantly enriched in deuterium (D), the HMT photoproduct is expected to inherit D atoms from deuterated methanol. However, D fractionation upon the formation of HMT is not well understood, especially when it is produced from partly deuterated methanol isotopologues such as CH2DOH and CH3OD. Here, we experimentally studied the composition of deuterated HMT (dn-HMT, where n is the number of D atoms) at the isotopologue level formed by the photolysis of ice mixtures containing deuterated methanol, CH2DOH or CH3OD, at 10 or 77 K. The analyses were performed using a state-of-the-art high-resolution mass spectrometer coupled with a compound-specific separation technique. The formation of dn-HMT (n = 0–8) was confirmed under all experimental conditions. In addition, methyl- and hydroxyl-substituted HMT and their deuterated isotopologues were also obtained in the products. The deuterium enrichment was outstanding when CH2DOH was used rather than CH3OD, and when photolysis was performed at 77 K rather than 10 K. We found that the deuteration level of the formed HMT far exceeded that of the reactants under the present experimental conditions. These results obtained during stable isotope probing of deuterium strongly suggest that HMT can play a role as an organic pool of interstellar D atoms. These may be distributed into other chemical species through molecular evolution in space.
The relation between uric acid level and blood pressure values among patients hospitalized in a department of internal medicine

Introduction The relationship between uric acid (UA) level and blood pressure (BP) is not clear, although most studies suggest BP reduction in patients treated with UA level lowering agents. Aim The aim of the study was to evaluate the relationship between UA level and BP among patients hospitalized in a department of internal medicine. We also intended to investigate the relation between the allopurinol dose prescribed and BP. Material and methods We reviewed hospital records of 561 patients (mean age: 65.46 ±17.46 years) hospitalized in a department of internal medicine, in whom UA level was determined on admission. Results We did not find a significant correlation between UA level and BP values in the whole group, nor in patients not taking any BP-lowering or any UA-lowering drug. Multivariable analysis showed that allopurinol dose was not independently related to BP. Age (OR = 1.04, 95% CI: 1.03–1.06 per 1 year), diabetes (OR = 1.90, 95% CI: 1.14–3.16), stage 2 (OR = 4.96, 95% CI: 2.15–11.46) and stage 3 obesity (OR = 13.66, 95% CI: 5.90–31.60), both vs. patients without stage 2/3 obesity, but not UA level, were independently related to the diagnosis of hypertension. Conclusions Our study does not confirm an independent relationship between UA level and BP nor between UA lowering and BP in a population of hospitalized patients.
QUANTUM MECHANICS OF 'CONSCIOUS ENERGY'

This paper is aiming to investigate the physical substrate of conscious process. It will attempt to find out: How does conscious process establish relations between their external stimuli and internal stimuli in order to create reality? How does consciousness devoid of new sensory input result to its new quantum effects? And how does conscious process gain mass in brain? This paper will also try to locate the origins of consciousness at the level of neurons along with the quantum effects of conscious process.
Determinants of Severe Nocturnal Hypoxemia in Adults with Chronic Thromboembolic Pulmonary Hypertension and Sleep-Related Breathing Disorders

Objectives: We aimed to investigate the occurrence of sleep-related breathing disorders (SRBDs) in patients with chronic thromboembolic pulmonary hypertension (CTEPH) and addressed the effect of pulmonary hemodynamics and SRBD indices on the severity of nocturnal hypoxemia (NH). Methods: An overnight polysomnography (PSG) was conducted in patients with CTEPH, who were eligible for pulmonary endarterectomy. Pulmonary hemodynamics (mean pulmonary arterial pressure (mPAP), pulmonary arterial wedge pressure (PAWP), pulmonary vascular resistance (PVR) measured with right heart catheterization (RHC)), PSG variables (apnea–hypopnea index (AHI)), lung function and carbon monoxide diffusion capacity (DLCO) values, as well as demographics and comorbidities were entered into a logistic regression model to address the determinants of severe NH (nocturnal oxyhemoglobin saturation (SpO2) < 90% under >20% of total sleep time (TST)). SRBDs were defined as obstructive sleep apnea (OSA; as an AHI ≥ 15 events/h), central sleep apnea with Cheyne–Stokes respiration (CSA–CSR; CSR pattern ≥ 50% of TST), obesity hypoventilation syndrome (OHS), and isolated sleep-related hypoxemia (ISRH; SpO2 < 88% under >5 min without OSA, CSA, or OHS). Results: In all, 50 consecutive patients (34 men and 16 women; mean age 54.0 (SD 15.1) years) were included. The average mPAP was 43.8 (SD 16.8) mmHg. SRBD was observed in 40 (80%) patients, of whom 27 had OSA, 2 CSA–CSR, and 11 ISRH. None had OHS. Severe NH was observed in 31 (62%) patients. Among the variables tested, age (odds ratio (OR) 1.08, 95% confidence interval [CI] 1.01–1.15; p = 0.031), mPAP (OR 1.11 [95% CI 1.02–1.12; p = 0.012]), and AHI (OR 1.17 [95% CI 1.02–1.35; p = 0.031]) were independent determinants of severe NH. Conclusions: Severe NH is highly prevalent in patients with CTEPH. Early screening for SRBDs and intervention with nocturnal supplemental oxygen and/or positive airway pressure as well as pulmonary endarterectomy may reduce adverse outcomes in patients with CTEPH.
A Comparative Study of Pain in Patients Planned for Tooth Extraction and Dental Implant Insertion

Introduction: A variation in dental pain following tooth extraction and implant placement has been observed. The present study aimed to compare pain in patients undergoing tooth extraction and implant placement. Materials and Methods: Eighty-four patients underwent tooth extraction and implant placement in maxillary central incisor. Pain (VAS) was recorded at 24 h, 24 h, and 48 h. Results: The mean pain value (VAS) at 24 h post-operatively after tooth extraction was 6.1 and after implant insertion was 2.9. At 48 h after tooth extraction was 4.3 and after implant insertion was 1.1 and after 72 h after tooth extraction was 2.4 and after implant insertion was 0.27. A significant difference was observed between both procedures at different intervals of time (P < 0.05). Conclusion: The pain experienced by patients during dental implant insertion was comparatively less as compared to dental tooth extraction.