Miracle-dz/UniFAR-FTUs huggingface dataset:
Improving Color Constancy Using Chromaticity-Line Prior

Color constancy is the ability to remove the effect of illumination on color. Since color constancy is an ill-posed problem, many methods have been proposed based on assumptions to constraint the solution space. However, most existing assumptions require specular pixels or abundant colors, and fail to produce satisfactory results for different scenarios. According to extensive experiments, we observe that the chromaticity distribution of pixels within main color under canonical illumination, which we called canonical pixels, is linear and can also locate the position of illumination under the non-canonical illumination. Therefore, this paper proposes a chromaticity-line prior (CLP) as an additional linear constraint on the ill-posed problem of color constancy. In the calculation of CLP, the simple linear iterative clustering is firstly employed to segment an image into several super-pixel blocks. And the random sampling consensus is utilized to remove non-primary color points and fit the chromaticity-line. Based on the proposed CLP, a color constancy algorithm is implemented correspondingly. Since the main idea of the CLP is to extract the canonical pixels, which is the inherent property of image, the proposed CLP is more general and adaptive in real scenes. The experiments on two public datasets demonstrate that the proposed algorithm not only outperforms state-of-the-art learning-free algorithms, but also achieves results that are competitive to those of learning-based algorithms.
Simultaneously Improving the Optical, Dielectric, and Solubility Properties of Fluorene-Based Polyimide with Silyl Ether Side Groups

Three fluorene-based polyimides with silyl ether groups (Si–PIs) were successfully synthesized by a simple and efficient silicon etherification reaction of hydroxyl-containing polyimides (OH–PIs) and tert-butylchlorodiphenylsilane (TBDPSCl), and their structures were confirmed by 1H NMR and IR spectra. The bulky nonpolar tert-butyldiphenylsilyl (TBDPS) side groups in the modified PI unit instead of the strong electron donor −OH group is conducive to decreasing electronic conjugation and charge transfer (CT) interaction along the PI chain. Accordingly, the optical, dielectric, and solubility properties of the modified Si–PI films are simultaneously improved compared with the precursor OH–PI films. The modified Si–PI films demonstrate a meaningful enhancement in the transmittances at a wavelength of 400 nm (T400) to 74–81% from 42 to 55% of OH–PI films and the regeneration of fluorescence characteristics. The dielectric constant and loss of Si–PI films are also obviously reduced to 2.63–2.75 and 0.0024–0.0091 at 1 kHz from 4.19 to 4.78 and 0.0173–0.0295 of OH–PI films, respectively, due to substituted with the bulky nonpolar TBDPS groups to increase the free volume and hydrophobicity of Si–PI films. The solubility of Si–PIs in low- or nonpolar solvents (such as CHCl3, CH2Cl2, acetone, and toluene) is significantly improved. Furthermore, Si–PI films still maintain relatively good thermal properties with the 5% weight loss temperature (T5%) in the range 470–491 °C under a nitrogen atmosphere and the glass transition temperature (Tg) in the range 245–308 °C.
CONTROL OF THREE-DIMENSIONAL FLOW OVER A TURRET WITH A FLAT APERTURE

of Dissertation Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy CONTROL OF THREE-DIMENSIONAL FLOW OVER A TURRET By Miguel Palaviccini August 2013 Chair: Louis N. Cattafesta III Major: Aerospace Engineering Airborne optical systems are susceptible to large losses in efficiency as the optical beams travels through highly turbulent compressible flows. It is well known that compressible turbulent flow caused by flow separation over a three-dimensional turret has an adverse effect on aero-optic applications. Therefore, understanding the various three-dimensional flow features and their effects on the aero-optic environment is a key challenge that needs to be addressed. A study of the baseline flow physics around a submerged hemispherical turret with a flat aperture at Ma<0.26 is characterized, identifying potential sources of aero-optic distortion. Spectral analysis of unsteady pressure reveals that the recirculation region and separated shear layer are two dominant regions contributing to the unsteadiness of the flow. Oil flow-visualization illustrate the three dimensional separation line and length of recirculation region, both investigated as possible metrics for flow control applications. Stereoscopic PIV and hot-wire anemometry are used to characterize the separated shear layer with both spatial evolution and temporal spectra calculations of the velocity field. Malley probe measurements are made along the flat window, providing one-dimensional slices of optical wavefronts in the direction of the beam propagation vector. OPDrms is calculated via spectral methods, and when normalized by the suggested scaling in the literature, the flow is found to be twice as optically active as that surrounding a surface-mounted conformal-window turret. Conditional spectral
Phenotypic Correlation between Body Weight and Body Part Size of Native Chickens in Moramo District, South Konawe Regency, Indonesia

The purpose of this study was to determine the close relationship between body weight and body size of native chicken in Moramo District, South Konawe Regency, Southeast Sulawesi Province, Indonesia. The relationship between body weight and body size is used as a consideration in selecting the body weight of chickens. The research material was 190 native chickens consisting of 95 males and 95 females. The research method is an experiment by weighing body weight and measuring the body parts of chickens using a livestock measuring tape. Parameters observed were body weight, back length, femur length, tibia length, shank length, and chest circumference. Data were analyzed using correlation, determination, and regression analysis. The results showed that the correlation coefficient between body weight and back length, femur length, tibia length, shank length and chest circumference were 0.359; 0.216; 0.234; 0.375; and 0.278 in the rooster, while the female is 0.201; 0.240; 0.281; 0.339; and 0.472. The greatest coefficient of determination was found in the chest circumference of the hen (R=22.29%).
Factors Influencing Length of Stay and Discharge Destination of Patients with Hip Fracture Rehabilitating in a Private Care Setting

Background: Rehabilitation after a hip fracture has long-term importance, prompting some patients to utilise private services. Insufficient data regarding private rehabilitation in the UK can cause ambiguity and potential problems for all involved. Aim: The present study, involving patients with hip fractures rehabilitating in a private UK care setting, examined relationships between length of stay (LoS), discharge destination (DD) and 12 predictor variables. Methods: The variables included the retrospective measurement of the Functional Independence Measure. The variables were informed by a literature review and patient and public involvement. Retrospective data from the records of patients with hip fractures were utilised. Data were analysed using Spearman’s rho, Mann–Whitney U, Kruskal–Wallis H and chi-squared tests as appropriate. Odds ratios, distribution quartiles and survivor analysis were also utilised. Results: The median length of stay (LoS) was 20.5 days: 82% returned home, 6.5% died and 11.5% remained as long-term residents. Significant relationships existed between LoS and age (p = 0.004), comorbidities (p = 0.001) and FIMadmission (p = 0.001). DD was associated with age (p = 0.007), delirium (p = 0.018), comorbidities (p = 0.001) and both FIMpre-fracture and FIMadmission (p = 0.000). Conclusions: Factors associated with length of stay were identified, but further research incorporating multiple sites is required for greater predictor precision. Discharge destination was evident by 90 days, facilitating long-term planning.
Seismic performance of multi-anchor wall with double-wall facing

Damage to the embankments of abutment backfills often affects emergency routes by introducing sharp drops in the road level between the bridge and backfill. Therefore, it is important to clarify the seismic performance of abutment backfills with reinforced double-wall facing to maintain the road level. The length of the necessary tie-bars is determined by the internal stability of the reinforced area. It follows that anchor plates may be installed in intersecting or binding configurations, which are not ordinary conditions, depending on the width of the road. In this study, a series of centrifugal shaking table tests was performed to investigate the seismic behavior of a multi-anchor wall with double-wall facing. The test results showed various deformations with different reinforcement positions; perpendicularity was best maintained when using a binding tie-bar configuration. Smaller deformation was observed for a wall using intersecting anchor plates compared to that using an ordinary configuration. This implies that crossing the reinforcement areas can improve, rather than adversely affect, the stability of the full structure.
Baselining methodology for facility-level monthly energy use. Part 1: Theoretical aspects

A baselining methodology is crucial to verify savings from energy conservation programs, to determine progress toward preset energy-efficiency goals, and to implement performance-based shared energy savings contracts. This paper discusses the various issues involved and structures a formal baselining methodology at the facility level or whole-building level when monthly utility bills are available. Normalizing annual energy use for changes in the conditioned area and in the number of occupants as well as correcting for increases in the connected load (a phenomenon referred to as creep) are also discussed. The various functional forms assumed by the regression models with outdoor dry-bulk temperature as the only regressor variable are described in the framework of two widely used energy modeling software packages. An important aspect of this paper is the development of prediction uncertainty bands for the regression model, both at the monthly level and at the annual level, an issue of key importance if one wishes to reach statistically meaningful conclusions regarding month-to-month and year-to-year changes in observed energy use with respect to the baseline year. Finally, a statistical method is described by which one can overcome model identification limitations in case the read dates of the utility bills are not known.more » A companion paper presents the results of applying this baselining methodology to eight Army installations nationwide. « less
An efficient deep landmark detection network for PLAX EF estimation using sparse annotations

The parasternal long axis (PLAX) is a routine imaging plane used by clinicians to assess the overall function of the left ventricle during an echocardiogram. Measurements from the PLAX view, in particular left ventricle internal dimension at both end-diastole (LVIDd) and end-systole (LVIDs), are significant markers used to identify cardiovascular disease and can provide an estimation of ejection fraction (EF). However, due to the user-dependent nature of echocardiograms, these measurements suffer from a large amount of inter-observer variability, which greatly affect the sensitive formula used to calculate PLAX EF. While few previous works have attempted to reduce this variability by automating LVID measurements, their models not only lack reliable accuracy and precision, but also generally are not suited to be adapted in point-of-care ultrasound (POCUS) which has limited computing resources. In this paper, we propose a fully automatic, light-weight landmark detection network for detecting LVID and rapidly estimating PLAX EF. Our model is built upon recent advances in deep video landmark tracking with extremely sparse annotations.1 The model is trained on only two frames in the cardiac cine that contain either the LVIDd or LVIDs measurements labeled by clinicians. Using data from 34,305 patients for our experiments, the proposed model accurately tracks the contraction of left ventricular walls. Our model achieves a mean absolute error and standard deviation of 2:65 ± 2:36 mm, 2:77 ± 2:58 mm, and 8:45 ± 7:43% for predicting LVIDd length, LVIDs length, and PLAX EF, respectively. As a light-weight network with less than 125,000 parameters, our model is extremely accessible for POCUS applications.
Temperature Dependent on Mechanical and Rheological Properties of EPDM-Based Magnetorheological Elastomers Using Silica Nanoparticles

Temperature is one of the most influential factors affecting the performance of elastomer matrix in magnetorheological elastomer (MRE). Previous studies have utilized silica as a reinforcing filler in polymer composite and as a coating material in MRE to improve the thermal stability of the base material. However, the usage of silica as an additive in the thermal stability of MRE has not been explored. Thus, in this study, the effect of silica as an additive on the temperature-dependent mechanical and rheological properties of ethylene propylene diene monomer (EPDM)-based MREs was investigated by using 30 wt. % carbonyl iron particles (CIPs) as the main filler, with different contents of silica nanoparticles (0 to 11 wt.%). The microstructure analysis was examined by using field-emission scanning electron microscopy (FESEM), while the thermal characterizations were studied by using a thermogravimetric analyzer and differential scanning calorimetry. The tensile properties were conducted by using Instron Universal Testing Machine in the absence of magnetic field at various temperatures. Meanwhile, the rheological properties were analyzed under oscillatory loadings in the influence of magnetic field, using a rotational rheometer at 25 to 65 °C. The results revealed that the temperature has diminished the interfacial interactions between filler and matrix, thus affecting the properties of MRE, where the tensile properties and MR effect decrease with increasing temperature. However, the presence of silica capable improved the thermal stability of EPDM-based MRE by enhancing the interactions between filler and matrix, thus reducing the interfacial defects when under the influence of temperature. Consequently, the incorporation of silica nanoparticles as an additive in EPDM-based MRE requires more exploration, since it has the potential to sustain the properties of MRE devices in a variety of temperature conditions. Thus, the study on the temperature-dependent mechanical and rheological properties of MRE is necessary, particularly regarding its practical applications.
Workplace violence and turnover intention among the Bangladeshi female nurses after a year of pandemic: An exploratory cross-sectional study

During the COVID-19 pandemic, workplace violence was widespread against healthcare personnel. Workplace violence (WPV) against nurses exhilarates their turnover intention (TI). The objective of this study was to investigate the association between workplace violence and turnover intention and also identify other factors associated with TI among Bangladeshi female nurses. An exploratory cross-sectional study was carried out among 881 female nurses between April 26 and July 10, 2021. The TI of the female nurses was the outcome variable of this study. The primary exposure variable was WPV faced by the nurses. Workplace Violence Scale (WPVS) was used to measure the WPV, and Turnover Intention Scale-6 (TIS-6) was used to measure the TI of the nurses. Multiple linear regression model was fitted to find the adjusted association of TI with WPV and other study variables. A stratified analysis by type of job (government vs. private) was also performed. The majority of the nurses (74.46%) faced low to high levels of WPV. The overall mean score of TIS was found 16.33 (± 4.72). Multiple linear regression analysis revealed that compared to government jobholders, the mean score of TIS (15.81 vs. 17.20) was found significantly higher among the private jobholders (p < 0.001). Nurses exposed to the intermediate and high level of WPV had a significantly higher TI score (β = 4.35, 95% CI: 3.36, 5.34) than the non-exposures. The TI of private jobholders was found significantly higher (β = 2.04, 95% CI: 1.09, 3.00) than the government jobholders. Compared to diploma degree holders, significantly higher TI was observed among the B.Sc. degree holders (β = 0.86, 95% CI: 0.22, 1.55) and M.Sc. degree holders (β = 1.46, 95% CI: 0.58, 2.34). Besides, the nurses who did not get timely salaries scored higher TI (β = 1.17, 95% CI: 0.12, 2.22). Moreover, the nurses who did not receive any training against WPV scored significantly higher TI (β = 1.89, 95% CI: 1.03, 2.74). The stratified analysis by type of job also revealed significant factors of TI in government and private settings. This study found a high prevalence of WPV and a high rate of TI among Bangladeshi female nurses. Moreover, this study explored an association between WPV and TI. The study findings could help policymakers facilitate a comfortable working environment by preventing WPV and addressing the factors to reduce nurses’ frequent TI.
Developing and Validating an Assessment Scale to Measure the Competitiveness of Wellness Destinations

The present study developed an assessment scale to measure the competitiveness of wellness destinations in Thailand, particularly from the perspective of the wellness tourism firm. A literature review and in-depth interviews informed the components and indicators for the assessment. Then, a scale was developed to evaluate the effectiveness and accuracy of the measurement scale using exploratory factor analysis and verification by confirmatory factor analysis. These analyses generated seven dimensions of wellness tourism: destination environment, travel and policy, infrastructure and capacity, manufactured and cultural resources, strategy and structure, novelty potential, and cooperative and proactive marketing. The results indicate strategies and considerations to improve the competitiveness of wellness destinations in Thailand. The assessment tool may be valuable for wellness tourism clusters and stakeholders to assess and promote wellness destination competitiveness.
Green Synthesis and Anticancer Potential of 1,4-Dihydropyridines-Based Triazole Derivatives: In Silico and In Vitro Study

A library of 1,4-dihydropyridine-based 1,2,3-triazol derivatives has been designed, synthesized, and evaluated their cytotoxic potential on colorectal adenocarcinoma (Caco-2) cell lines. All compounds were characterized and identified based on their 1H and 13C NMR (Nuclear Magnetic Resonance) spectroscopic data. Furthermore, molecular docking of best anticancer hits with target proteins (protein kinase CK2α, tankyrase1, and tankyrase2) has been performed. Our results implicated that most of these compounds have significant antiproliferative activity with IC50 values between 0.63 ± 0.05 and 5.68 ± 0.14 µM. Moreover, the mechanism of action of most active compounds 13ab′ and 13ad′ suggested that they induce cell death through apoptosis in the late apoptotic phase as well as dead phase, and they could promote cell cycle arrest at the G2/M phase. Furthermore, the molecular docking study illustrated that 13ad′ possesses better binding interaction with the catalytic residues of target proteins involved in cell proliferation and antiapoptotic pathways. Based on our in vitro and in silico study, 13ad′ was found to be a highly effective anti-cancerous compound. The present data indicate that dihydropyridine-linked 1,2,3-triazole conjugates can be generated as potent anticancer agents.
Intention to Use E-wallet Dilihat dari Perceived Usefulness, Perceived Ease of Use, Perceived Security, dan Trust

<em><span lang="EN-US">Currently,</span><span> the</span><span lang="EN-US"> lifestyle of modern society is changing, due to the support of increasingly sophisticated technology. Technology makes it easy for users to carry out various activities very easily. One form of this technology is the smartphone, </span><span lang="EN-US">it</span><span>’</span><span lang="EN-US">s a multifunctional tool that can replace various products and functions in one hand. In addition to entertainment, smartphones are also used for work, and even make financial transactions very easily. However, risks can occur with the existence of these advanced technologies. Perceptions of the ease of use of technology and consumer confidence can reduce the risks faced. This study uses an e-wallet object for further analysis. The purpose of this study was to determine the factors that influence the intention to use </span><span>the </span><span lang="EN-US">e-wallet. The sample of this study was young people, from 300 students who were determined by quota sampling technique, while the research instrument used a questionnaire </span><span>that</span><span lang="EN-US"> was tested for validity and reliability before data analysis. </span><span>A m</span><span lang="EN-US">ultiple linear regression analysis method</span><span>s</span><span lang="EN-US"> was used to test the hypothesis proposed in this study. The results of this study indicate that perceived usefulness, perceived ease of use, and trust have a significant and positive effect on </span><span>the </span><span lang="EN-US">intention to use </span><span>the </span><span lang="EN-US">e-wallet, while perceived security has no significant effect. </span></em>
Calceolarioside A, a Phenylpropanoid Glycoside from Calceolaria spp., Displays Antinociceptive and Anti-Inflammatory Properties

Phenylpropanoid glycosides are a class of natural substances of plant origin with interesting biological activities and pharmacological properties. This study reports the antinociceptive and anti-inflammatory effects of calceolarioside A, a phenylpropanoid glycoside previously isolated from various Calceolaria species. In models of acute nociception induced by thermal stimuli, such as the hot plate and tail flick test, calceolarioside administered at doses of 1, 5, and 10 μg in the left cerebral ventricles did not modify the behavioral response of mice. In an inflammatory based persistent pain model as the formalin test, calceolarioside A at the high dose tested (100 μg/paw) reduced the licking activity induced by formalin by 35% in the first phase and by 75% in the second phase of the test. In carrageenan-induced thermal hyperalgesia, calceolarioside A (50 and 100 μg/paw) was able to significantly reverse thermal hyperalgesia induced by carrageenan. The anti-inflammatory activity of calceolarioside A was then assessed using the zymosan-induced paw edema model. Calceolarioside A (50 and 100 μg/paw) induced a significant reduction in the edema from 1 to 4 h after zymosan administration. Measuring IL-6, TNFα, and IL-1β pro-inflammatory cytokines released from LPS-stimulated THP-1 cells, calceolarioside A in a concentration-dependent manner reduced the release of these cytokines from THP-1 cells. Taken together, our results highlight, for the first time, the potential and selective anti-inflammatory properties of this natural-derived compound, prompting its rationale use for further investigations.