Miracle-dz/UniFAR-FTUs huggingface dataset:
Safety of the aqueous extract of Portulaca grandiflora Hook in healthy volunteers

Chavalittumrong, P., Sriwanthana, B. , Rojanawiwat, A. , Kijphati, R. , Jitjuk, B. , Treesangsri, W. , Phadungpat, S. , Bansiddhi, J. and Bunjob, M. Safety of the aqueous extract of Portulaca grandiflora Hook in healthy volunteers Songklanakarin J. Sci. Technol. , March 2007, 29(Suppl. 1) : 95-100 A phase 1 clinical trial was performed in 16 healthy volunteers to primarily investigate safety of Portulaca grandiflora (P. grandiflora) as well as to preliminarily assess its efficacy on the immune system. The volunteers received 500 mg/day of P. grandiflora aqueous extract (250 mg capsule twice daily) for 2 months. No major side effects were reported from any of the subjects throughout the study. It was found that some significant changes in biochemical parameters were within normal limits. Hematological and immunological parameters were not altered after oral administration of P. grandiflora. Our results indicated that the P. grandiflora aqueous extract at the dose of 500 mg/day given to normal volunteers for 2 months was safe.
Towards Reproducible Neural Architecture and Hyperparameter Search

Recent advances in neural architecture and hyperparameter search demand tremendous computational resources which makes it almost impossible to reproduce experiments. We argue that this hinders the progress in this subfield since new methods can not be thoroughly compared to already existing methods. In this work, we generated a new benchmark for neural architecture search and hyperparameter optimization which is based on tabular data for a feed forward neural network. Each function evaluation is just a simple table look up and thus takes only milliseconds but mimics the true underlying optimization problem. Furthermore, we analyze the properties of this benchmark and compare a range of state-of-the-art neural architecture and hyperparameter search methods.
Title : The Hydrodynamic Radius of Particles in the Hybrid Lattice Boltzmann-Molecular Dynamics Method Year : 2013 Version : Final

We address the problem of the consistency of different measures of the hydrodynamic radius of solid point and composite solute particles incorporated into the hybrid lattice Boltzmann– molecular dynamics (LBMD) multiscale method. The coupling between the fluid and the particle phase is naturally implemented through a Stokesian type of frictional force proportional to the local velocity difference between the two. Using deterministic flow tests such as measuring the Stokes drag, hydrodynamic torques, and forces we first demonstrate that in this case the hydrodynamic size of the particles is ill-defined in the existing LBMD schemes. We then show how it is possible to effectively achieve the no-slip limit in a discrete simulation with a finite coefficient of the frictional force by demanding consistency of all these measures, but this requires a somewhat modified LB algorithm for numerical stability. Having fulfilled the criteria, we further show that in our consistent coupling scheme particles also obey the macroscopically observed fluctuation-dissipation theorem for the diffusion coefficient of a single particle without any adjustable parameters. In addition, we explicitly show that diffusion alone is not a good criterion for calibration of the frictional coupling.
Normal Embryonic Stages of the Chinese Softshelled Turtle Pelodiscus sinensis (Trionychidae)

Abstract We describe the normal embryonic development of the Chinese soft-shelled turtle, Pelodiscus sinensis. We identified 23 stages between the late neurula and hatching, based on chronology and the external morphology of embryos. The anlage of the sensory organs appeared in early stages of the pharyngula, followed by limb buds. The lateral ridge of the carapace, or the carapacial ridge, could be recognized by two weeks of incubation, and the basal structure of the shell was complete by the mid stage (24 days) of development. The hatchling was well pigmented, and the yolk had been entirely absorbed. The developmental stages of P. sinensis were comparable with those of other turtle species. The developmental pattern of P. sinensis resembled basal taxa rather than more derived groups. Some peculiarities were recognized in the development of P. sinensis, including the appearance of cutaneous papillae on the carapace instead of horny scutes. Those features are shared by Carettochelys, possibly the species taxonomically closest to the Trionychids.
Stakeholder Orientation in Cruise Lines’ Mission Statements

Consistent with the extant management literature, mission statements are crucial for the sustainability and growth of any firms and have been considered to be a tool for the strategic management process. Despite the considerable attention awarded to this theme, the role of the mission statement in the strategic management of tourism firms has not been sufficiently highlighted. The present paper tries to bridge this literature gap and aims to (i) analyze the content of mission statements; and (ii) investigate the stakeholder orientation of cruise line mission statements. We apply a content analysis method to analyze the mission statements of 44 cruise lines, employing three different perspectives: (1) the inclusion of stakeholder groups; (2) mentions of specific “mission” components; (3) reference to four goals usually assigned to mission statements. The analysis was performed using the software package QDA-Miner. The results suggest that it is possible to identify four clusters of firms that present similar content in their mission statements, and that cruise companies tend to reserve a major attention to customers. This contribution presents some valuable research implications mainly useful for researchers and academics, but also maybe of benefit to professionals and investors.
Particle production and apparent decoherence due to an accelerated time delay

We study the radiation produced by an accelerated time delay acting on the left moving modes. Through analysis via the Schrodinger picture, we find that the final state is a two-mode squeezed state of the left moving Unruh modes, implying particle production. We analyze the system from an operational point of view via the use of self-homodyne detection with broadband inertial detectors. We obtain semianalytical solutions that show that the radiation appears decohered when such an inertial observer analyzes the information of the radiation from the accelerated time-delay source. We make a connection with the case of the accelerated mirror. We investigate the operational conditions under which the signal observed by the inertial observer can be purified.
Explicit CP violation in a MSSM with an extra U(1)

We study that a minimal supersymmetric standard model with an extra U(1)' gauge symmetry may accommodate the explicit CP violation at the one-loop level through radiative corrections. This model is CP conserving at the tree level and cannot realize the spontaneous CP violation for a wide parameter space at the one-loop level. In explicit CP violation scenario, we calculate the Higgs boson masses and the magnitude of the scalar-pseudoscalar mixings in this model at the one-loop level by taking into account the contributions of top quarks, bottom quarks, exotic quarks, and their superpartners. In particular, we investigate how the exotic quarks and squarks would affect the scalar-pseudoscalar mixings. It is observed that the size of the mixing between the heaviest scalar and pseudoscalar Higgs bosons is changed up to 20% by a complex phase originated from the exotic quark sector of this model.
Radiation Reaction of an accelerating Point Charge: A new Approach

Abraham Lorentz (AL) formula of Radiation Reaction and its relativistic generalization, Abraham Lorentz Dirac (ALD) formula, are valid only for periodic (accelerated) motion of a charged particle, where the particle returns back to its original state. Thus, they both represent time averaged solutions for radiation reaction force. In this paper, another expression has been derived for radiation reaction following a new approach, starting from Larmor formula, considering instantaneous change (rather than periodic change) in velocity, which is a more realistic situation. Further, it has been also shown that the new expression for Radiation Reaction is free of pathological solutions; which were unpleasant parts of AL as well as ALD equations; and remained unresolved for about 100 years.
Adsorption Study of Several Hydrophobic Organic Contaminants on an Aquifer Material

Problem statement: Aim of the present research was to determine coefficient of partition KD between soil and groundwater for five hydrophobic organic pollutants (benzene, chlorobenzene, trichloroethylene-TCE, perchloroethylene-PCE and toluene) in an Italian aquifer material characterized by a low organic carbon content (fOC = 0.00262) by means of laboratory batch tests. Initial aqueous concentrations (quite different among the five compounds) were representative of the pollution level of considered site. Approach: Adsorption data for five afore mentioned compounds were obtained by means of laboratory tests: Multi-contaminant adsorption tests were performed putting in contact 50 g of dried soil together with 200 mL of a contaminant solution for 72 h in order to achieve the equilibrium. After 72 h, supernatant was then analyzed by means of headspace gaschromatography providing the equilibrium concentration of the contaminants of interest in liquid phase. The concentration of contaminants of interest in solid phase (adsorbent) was determined taking advantage of a mass balance performed on each contaminant. Results: Results showed that both linear isotherm (in form of Henry isotherm) and Freundlich isotherm were able to fit experimental points for benzene, chlorobenzene, TCE and PCE in a satisfactory way; as for these four contaminants, PCE is more strongly adsorbed than TCE and TCE, in its turn, is more strongly adsorbed than benzene and chlorobenzene. On the other hand, Langmuir model appeared to be the most suitable in fitting toluene experimental points. The comparison between real distribution coefficient KD obtained fitting experimental points with an Henry-type isotherm and KD obtained on grounds of a theoretical model, like Linear Free Energy Relationships (LFER-based model), showed that LFER model uniformly underestimate the sorption process over whole concentration range, with the only exception of toluene. In case of toluene, LFER-based model fitted the sorption data very well; besides, Henry-type KD is very close to that calculated from LFER correlation over the tested concentration range: Difference between two KD values is the smallest among five considered contaminants (KD toluene theoretical LFER = 0.520 L kg-1; KD toluene experimental = 0.465 L kg-1). Conclusion: The important practical implication of results came from batch tests was that the calculation of KD based on theoretical models, like LFER, may give a wrong sorption estimation in some aquifers with a relatively low fOC content.
A full-color reflective display using polymer-stabilized blue phase liquid crystal

We demonstrate a full-color-capability reflective display using red, green, and blue sub-pixels of polymer-stabilized blue phase liquid crystal (BPLC) with different pitch lengths. Vivid colors originate from three-dimensional BPLC photonic crystalline structure. Surface alignment plays a key role to generate uniform and saturated colors in the voltage-off state. Analogous grayscale is achieved by the electric-field-induced unwinding of double-twist structure. This working principle is drastically different from the phase retardation effect of conventional liquid crystal displays. Moreover, the submillisecond response time enables crisp video displays without image blurring. Potential applications for reflective 3D display are also analyzed.
Classifying Exoplanets with Gaussian Mixture Model

Recently, Odrzywolek and Rafelski (arXiv:1612.03556) have found three distinct categories of exoplanets, when they are classified based on density. We first carry out a similar classification of exoplanets according to their density using the Gaussian Mixture Model, followed by information theoretic criterion (AIC and BIC) to determine the optimum number of components. Such a one-dimensional classification favors two components using AIC and three using BIC, but the statistical significance from both the tests is not significant enough to decisively pick the best model between two and three components. We then extend this GMM-based classification to two dimensions by using both the density and the Earth similarity index (arXiv:1702.03678), which is a measure of how similar each planet is compared to the Earth. For this two-dimensional classification, both AIC and BIC provide decisive evidence in favor of three components.
Combining Preference Ratings with Sensory Profiling for the Comparison of Audio Reproduction Systems

One aim of perceptual audio evaluation is to understand the relationships between individual sensory attributes and overall quality of experience. This paper discusses one perceptual evaluation method by which this can be realized. Open Profiling of Quality (OPQ), a method first introduced in the field of visual and audiovisual evaluation, involves psychoperceptual evaluation, sensory profiling, and external preference mapping stages and is suitable for use with naive listeners. Here, a methodological case study is presented in which we discuss the implementation of this method and its adaptation for the comparison of audio reproduction systems.
Work Intensification and Turnover Intention in Academia: The Mediating Role of Work-Life Balance

Numerous reforms in the Malaysian academia in recent years have resulted in academic work intensification which produces work-life balance and turnover intention in the higher education sector. This effect, however, has received limited research. This study aims to examine the relationships between work intensification, work-life balance and turnover intention among academics in Malaysian universities using the theory of Job Demand-Resources. The mediating effect of work-life balance on the relationship between work intensification and turnover intention was also explored. Data were collected through a survey from 190 respondents in public and private universities in Malaysia. As hypothesized, the PLS-SEM results revealed that the path relationships among the constructs were in the expected directions. Work intensification and turnover intention were found to be positively related, whereas work intensification and work-life balance were negatively related. In addition, work-life balance was negatively associated with turnover intention and it partially mediated the relationship between work intensification and turnover intention. Several important implications of the study findings for future research and practice were also discussed
Nonlinear pre-stress for cloaking from antiplane elastic waves

A theory is presented showing that cloaking of objects from antiplane elastic waves can be achieved by employing nonlinear elastic pre-stress in a neo-Hookean elastomeric material. This approach would appear to eliminate the requirement of metamaterials with inhomogeneous anisotropic shear moduli and density. Waves in the pre-stressed medium are bent around the cloaked (cavity) region by inducing inhomogeneous stress fields via pre-stress. The equation governing antiplane waves in the pre-stressed medium is equivalent to the antiplane equation in an unstressed medium with inhomogeneous and anisotropic shear modulus and isotropic scalar mass density. Note however that these properties are induced naturally by the pre-stress. As the magnitude of pre-stress can be altered at will, this enables objects of varying size and shape to be cloaked by placing them inside the fluid-filled deformed cavity region.
Side-View Mirror Vibrations Induced Aerodynamically by Separating Vortices

While driving a car at high speed cruising, the mirror surface of side-view mirrors happens to vibrate. The vibration often leads to image blurs of objects reflected in the mirror. Once the phenomena happen, drivers cannot clearly identify the approaching vehicles from the rear. The paper aims to clarify the vibration modes of side-view mirror experimentally and to capture forces on the mirror surface induced by separating vortices around the mirror numerically. Experimental study clarified two findings. One is that the mirror has the primary natural frequencies of 25, 30 and 33 Hz. The other is that vibrations of the mirror increase in proportion to flow velocity and their frequencies have peak values at 120 and 140 km/h. The frequencies of the mirror vibration coincide completely with the primary natural frequencies. In order to capture the external forces vibrating the mirror surface, numerical study was performed by unsteady air-flow analyses. Relationships between flow velocity fluctuations close to the mirror surface and pressure fluctuations on the mirror surface were investigated. It was found that the two power spectra have peak values at the same frequency of 24.4 Hz at 120 km/h. This shows that flow velocity fluctuations with the frequency of 24.4 Hz affect directly pressure fluctuations on the mirror surface. Numerical analyses clarify that the frequencies of shedding vortices are 24.4 Hz at 120 km/h and 28.3 Hz at 140 km/h. The frequencies of mirror vibration are very close to those of flow fluctuations. This shows that the frequencies of the mirror vibration have much to do with the frequencies of the forces induced aerodynamically by vortex shedding. Therefore it follows that image blurs at high speed cruising are caused by resonance phenomena that the mirror surface resonates with the frequencies of shedding vortices around the mirror.
Comparison of Caregiver Burden among Types and Stages of Dementia

The purpose of this study was to better understand the effects of caregiver burden as they relate to different dementia diagnoses and the stage of the disease in order to discover appropriate supports and interventions. Potential participants were identified through their use of a specialty memory loss clinic. Using a mixed methodology, respondents completed a survey which included a quantitative measure and qualitative open ended response questions designed to allow the caregiver to expand on their experience. The quantitative portion of this research used the Zarit Burden Interview (ZBI), a caregiver self-report measure. Diagnosis information and the patient’s Allen Cognitive Level (ACL) were supplied by the clinic in order to confirm appropriate diagnosis and stage of disease. Moderate ACL scores of 3.5-4.5 appear to increase burden. Caregiving daughters in this study were found to have the highest total ZBI scores, indicative of a higher level of burden than other caregivers. Husbands and wives in this study had identical mean total ZBI scores. The findings indicated several areas of caregiver burden in which social work supports could be valuable. Role transitions, isolation, a lack of social support, and the need for adult day centers equipped to handle patients with dementia related behaviors were all identified as areas of concern.
Drought-induced changes in development and function of grapevine (Vitis spp.) organs and in their hydraulic and non-hydraulic interactions at the whole-plant level: a physiological and molecular update

This review deals with grapevine responses to water stress by examining perturbations to physiological and molecular processes at the root, shoot, leaf and berry levels. Long-distance signalling among organs is also considered. Isohydric or anisohydric Vitis genotypes are described in relation to their response to drought, which is linked to stomatal behaviour. Stomatal regulation of grapevine under abscisic acid and hydraulic control (the latter being linked to embolism formation and recovery in water pathways upstream the stomata) is reviewed and linked to impairments of photosynthetic assimilation. We define three stages of photosynthesis regulation in grapevines that are subjected to progressive water stress on the basis of the main causes of assimilation decline. Early and late contributions of aquaporins, which play a fundamental role in water stress control, are discussed. Metabolic mechanisms of dehydration tolerance are rewieved, and variation linked to differences in transcript abundance of genes involved in osmoregulation, photosynthesis, photorespiration, detoxification of free radicals and coping with photoinhibition. Results of these defence strategies accumulated in berries are reviewed, together with perturbations of their molecular pathways. Features observed in different organs show that grapevine fits well as a complex model plant for molecular and physiological studies on plant drought avoidance/tolerance.
Exact calculation of stimulated emission driven by pulsed light

Stimulated emission can be defined as the process when an incoming photon stimulates an additional quantum of energy from an atom into the same electromagnetic mode as the impinging photon. Hence, the two outgoing photons are identical. In a waveguide or free space, this intuition is typically found through Fermi's Golden rule, however, this does not properly account for the wave-like nature of the photons. Here, I present an exact solution to stimulated emission from a quantum two-level atom that properly accounts for the incoming and outgoing electromagnetic modes. This result is valid over a huge range of incident photon numbers. For a single incident photon, it shows how the photon must properly mode match the two-level system to cause stimulated emission. For a Fock state drive with large photon number, the exact solution shows how a two-level system Rabi oscillates with the traveling Fock mode as it passes by. I additionally use the same formalism to show that stimulated emission by a coherent pulse cannot be understood as an additional photon being emitted into the incident coherent state because the two-level system's state factorizes with the electromagnetic field's coherent state. Recent advances in superconducting circuits make them an ideal platform to test these predictions.
Rectenna Design For Electromagnetic Energy Harvesting

The energy harvesting is the process by which energy from different sources of radiation is captured and stored. The harvesting of this energy would be an alternative energy capable of replacing, totally or partially, the battery of certain micro systems that require a low amount of energy. This paper firstly presents the quantification of the radiated power available in the ambient environment with respect to frequency through various measurements. This quantification of the RF power according to the considered environment is necessary since, it allows to choose frequency bands with the highest power density, and then to estimate the recoverable maximal DC power. Secondly, we present various simulation results under HFSS software to analyze the performance of antenna candidates for this study and which are the first elements constituting the rectennas.