Miracle-dz/UniFAR-FTUs huggingface dataset:
Failure to Fail in Dietetics Education: A Descriptive Study

Failure to fail occurs when educators pass students who are unsuitable for future professional practice. Literature suggests the phenomenon exists in various professional programs, yet this is the first known research focused on dietetics education. Nonexperimental quantitative methodology was used to investigate the manifestation of failure to fail in dietetic internship programs. An 18-item anonymous online survey was distributed to dietetics educators and preceptors who work with interns in a variety of settings. The survey received a 52.2 percent response rate. Over half of participants (n = 79; 60.77%) had worked with a concerning intern, 78 (62.40%) had given the “benefit of the doubt” on an evaluation, and 21 (16.94%) had given an undeserved competent rating. Significant differences in experiences and assessment practices were observed based on participants’ role, years of experience supervising interns, and work setting. Nearly one fourth of preceptor participants (n = 7; 24.14%) indicated a perceived lack of support from their institution when failing, or attempting to fail unsuitable students. Open-ended analysis revealed insight on strategies to alleviate issues, attributes of concerning interns, and concerns about program and institutional integrity. This study contributes to the breadth of research on failure to fail and highlights issues present in dietetics education. Future studies should include a larger reach of programs and an in-depth look at the experiences of preceptors and directors who have worked with professionally concerning interns. FAILURE TO FAIL IN DIETETICS v
Nano-porous anodic aluminium oxide membranes with 6–19 nm pore diameters formed by a low-potential anodizing process

Self-organized nano-porous anodic aluminium oxide (AAO) membranes with small pore diameters were obtained by applying a low anodizing potential in sulfuric acid solutions. The pore diameters of the as-prepared AAO membranes were in the range of about 6–19 nm and the interpore distances were about 20–58 nm. Low potentials (6–18 V) were applied in anodizing processes to make such small pores. A linear relationship between the anodizing potential (Ua) and the interpore distance (Dint) was also revealed. By carefully monitoring the current density’s evolution as a function of time with different Ua (2–18 V) during the anodizing processes, a new formula is proposed to simulate the self-ordering anodizing process.
Chemical partitioning of the new National Institute of Standards and Technology standard reference materials (SRM 2709–2711) by sequential extraction using inductively coupled plasma atomic emission spectrometry

Three new NIST standard reference materials (2709–2711) have been analysed by a widely-used sequential chemical extraction method to provide analyte levels that are particularly useful for the characterization of contaminated soils. Each chemical fraction is operationally defined as follows: (i) exchangeable; (ii) bound to carbonates or specifically adsorbed; (iii) bound to Fe–Mn oxides; (iv) bound to organic matter and sulfides; and (v) residual. The extraction solutions resulting from the five steps have been analysed for 15 elements (Al, Ca, Cd, Co, Cu, Fe, K, Mn, Ni, P, Pb, Sr, Ti, V, and Zn) using ICP-AES. The over-all recovery rates (the sum concentrations from the five steps/the certified total concentrations) were observed to lie between 90 and 105% for most of the elements. The precision was estimated to be approximately 5%(2s) for most extraction steps. The high concentrations and proportions of trace elements in the exchangeable fraction (step 1) in NIST 2710 suggest that this reference material can be especially appropriate for studies of mobility and bioavailability of heavy metals in contaminated soils. Using sequential extraction methods, the elemental concentrations in these reference materials determined by ICP-AES for some major elements (Al, Ca, Fe, K, Mn, P and Ti) help to indicate the mineralogical compositions actually dissolved in each step.
CRC Handbook of Chemistry and Physics, 76th edition

well as endogenous factors such as obesity or hormonal disorders. A conception closely associated in time with ovulation has been suggested to result in more boys.5 A high frequency of sexual intercourse should, according to this hypothesis, lead to a predominance of boys and a decline in the sex ratio according to age or parity could reflect a decline in sexual activity by age or a change in endogenous hormones over time. A low frequency could furthermore lead to low fecundity. A recent study showed that conception cycles with a short follicular phase produced more boys than girls.7 Exposures like dibromochloropropane (DBCP) have been shown to be associated with both low fecundity and a low sex ratio. De Cock et al found a difference in the time to pregnancy for boys and girls with the shortest time to pregnancy for the boys.8 These observations indicate a link between fecundity as measured by time to pregnancy and sex ratio. Based upon these observations we report data on sex ratio (measured as the proportion of boys among all newborns). It was expected that the sex ratio would decline with body mass index, age, parity, and low fecundity. The analyses are based upon data from a community trial named "Healthy habits for two" conducted between 1984 and 1987. All pregnant women in the Danish cities Odense and Aalborg were asked to give detailed information on lifestyle factors during pregnancy and obstetrical information on delivery was recorded from the medical files.9 The study subjects constituted 10 042 pregnant women (singletons only) after excluding 1808 women (15-26 %) with incomplete data. The participants delivered 5137 boys and 4905 girls (sex ratio = 0-51). Table 1 shows a weak but not significant trend towards a lower sex ratio with increasing age (except
The potential of white‐rot fungi to degrade phorbol esters of Jatropha curcas L. seed cake

The potential of solid‐state cultivation, with three white‐rot fungi (Bjerkandera adusta, Ganoderma resinaceum and Phlebia rufa), to decrease phorbol esters concentration of Jatropha curcas L. was evaluated in this study. Incubation was conducted in 250 mL Erlenmeyer flasks without agitation at 28°C for 30 days. Phorbol esters were analyzed by reverse‐phase HPLC after an extraction procedure using dichloromethane. All fungi studied were able to decrease the concentration of phorbol esters, mainly B. adusta and P. rufa which significantly reduced (p<0.05) phorbol esters contents to non‐toxic levels. These results suggest that white‐rot fungi could be potentially used as a possible approach for the biological treatment of the oilseed cake.
IsGISAXS: a program for grazing‐incidence small‐angle X‐ray scattering analysis of supported islands

This paper describes a Fortran program, IsGISAXS, for the simulation and analysis of grazing-incidence small-angle X-ray scattering (GISAXS) of islands supported on a substrate. As is usual in small-angle scattering of particles, the scattering cross section is expressed in terms of an island form factor and interference function. However, the emphasis is placed on the specificity of the grazing-incidence geometry, in particular in the evaluation of the island form factor in the distorted-wave Born approximation. A library of simple geometrical shapes is available. A full account of size and possible shape distributions is given in the decoupling approximation, where sizes and positions are not correlated, and in the local monodisperse approximation. Two types of island repartitions on the substrate are considered: disordered systems characterized by their particle–particle pair correlation functions, and bidimensional crystalline or paracrystalline systems of particles.
Biosorption of mercury from aqueous solution and oilfield produced water by pristine and sulfur functionalized rice residues

This article presents the biosorption potential of rice residues for Hg(II) removal from aqueous solution and oilfield produced water. Rice husk and rice straw were selected and functionalized with sulfur group from carbon disulfide in alkaline condition. The raw and modified biosorbents were characterized by using scanning electron microscopy, fourier transform infrared spectroscopy, energy dispersive X‐ray, and X‐ray photoelectric spectroscopy. Batch biosorption experiments were carried out to evaluate the effects of pH, initial ion concentration, contact time, and temperature on the removal process. It was found that the biosorption of rice residues showed a significant improvement in Hg (II) biosorption performance after the functionalization treatment. The maximum Hg(II) capacity of sulfur‐functionalized rice straw (RSS) and sulfur‐functionalized rice husk (RHS) obtained under present experiment condition was 119 and 92 mg/g, respectively. The equilibrium data were best‐fitted to Langmuir isotherm model, while the kinetic data followed the pseudo‐second‐order kinetic model. The biosorption process was endothermic, feasible and spontaneous in nature. The biosorbents showed good selectivity towards Hg(II) biosorption from the oilfield produced water. © 2015 American Institute of Chemical Engineers Environ Prog, 34: 1298–1310, 2015
Formation and Evolution of Nanoscale Metal Structures on ITO Surface by Nanosecond Laser Irradiations of Thin Au and Ag Films

The effect of nanosecond laser irradiations on 5 nm thick sputter-deposited Au and Ag films on Indium-TinOxide surface is investigated by atomic force microscopy (AFM) and scanning electron microscopy (SEM). After 500, 750, and 1000 mJ/cm 2 fluence irradiations, the breakup of the Au and Ag films into nanoscale islands is observed as a consequence of fast melting and solidification processes. The mean nanoparticles size and surface density are quantified, as a function of the laser fluence, by the AFM and SEM analyses. In particular, the comparison between the Au and Ag islands reveals the formation of larger islands in the case of Ag for each fixed fluence. The mechanism of the nanoscale islands formation is discussed, both for Au and Ag, in terms of the starting film thickness fluctuations (influencing the local threshold for melting), dewetting phenomenon and the Rayleigh criterion.
Bioconcentration of polybrominated benzenes and biphenyls and related superhydrophobic chemicals in fish: Role of bioavailability and elimination into the feces

Bioconcentration data are reported for a series of superhydrophobic chemicals including polybrominated biphenyls, brominated benzenes, mirex and polychlorinated biphenyls in the guppy (Poecilia reticulata). The observed bioconcentration factors follow a linear relationship with the 1-octanol/water partition coefficient for chemicals with a log Kow of up to 6. For chemicals with higher Kow values, the bioconcentration factors were lower than expected from the linear relationship. This loss of linear correlation is shown to be caused by (a) a low fraction of bioavailable chemical in the water, (b) elimination of chemical into the feces, (c) an insufficient exposure time to achieve equilibrium and (d) fish growth. Procedures are presented by which the magnitudes and relative contributions of these factors to reducing the apparent bioconcentration factor from linearity can be determined.
Synthesis of ReN3 thin films by magnetron sputtering

In this work <path id="x1D465" d="M536 404q0 -17 -13.5 -31.5t-26.5 -14.5q-8 0 -15 10q-11 14 -25 14q-22 0 -67 -50q-47 -52 -68 -82l37 -102q31 -88 55 -88t78 59l16 -23q-32 -48 -68.5 -78t-65.5 -30q-19 0 -37.5 20t-29.5 53l-41 116q-72 -106 -114.5 -147.5t-79.5 -41.5q-21 0 -34.5 14t-13.5 37 q0 16 13.5 31.5t28. 5 15.5q12 0 17 -11q5 -10 25 -10q22 0 57.5 36t89.5 111l-40 108q-22 58 -36 58q-21 0 -67 -57l-19 20q81 107 125 107q17 0 30 -22t39 -88l22 -55q68 92 108.5 128.5t74. 5 36.5q20 0 32.5 -14t12.5 -30z"> films were prepared by reactive magnetron sputtering at room temperature and deposited on a silicon wafer. It was found that the diffractograms of the nitrogen-rich rhenium film are consistent with those produced by high-pressure high-temperature methods, under the assumption that the film is oriented on the substrate. Using density functional calculations it was found that the composition of this compound could be ReN3, instead of ReN2, as stated on previous works. The ReN3 compound fits in the Ama2 (40) orthorhombic space group, and due to the existence of N3 anions between Re layers it should be categorized as an azide. The material is exceptionally brittle and inherently unstable under indentation testing.
Electronic spectra of naphthalene⋅Arn solvent clusters (n=1–30)

Van der Waals (vdW) clusters of naphthalene with argon were synthesized in supersonic beam expansions. Mass‐selective absorption spectroscopy was carried out by using fragmentation‐free two‐color resonant two‐photon ionization with mass‐spectrometric detection. Electronic spectra of naph⋅Arn (n≤6) were recorded at the vicinity of the naphthalene S1←S0 electronic origin (32 020 cm−1 ), and corresponding spectra for the 810 transition up to n=30. For n=3, the spectra due to two different isomers could be separated. Clear evidence for the existence of different cluster isomers was also found for n=6, 8, 9, 12–14, and 25–28. In comparison with most other solvent clusters M⋅Arn (M is the aromatic molecule), the spectral red shifts of 000 and vibronic bands of the naph⋅Arn clusters are very small. Analysis of the size dependence of the electronic spectral shifts indicates that the stepwise solvation of the naphthalene molecule proceeds predominantly on one side of the molecule. Two semicyclic trends in the spe.
Common and Diverging Integrin Signals Downstream of Adhesion and Mechanical Stimuli and Their Interplay with Reactive Oxygen Species

The integrin family of adhesion receptors regulates basic functions of cells, and the signals they induce are altered in tumor cells. In this review we discuss how different integrin-dependent signals are generated during cell adhesion and by physical forces acting on cells. We also describe how reactive oxygen species are integral parts of integrin signaling and highlight a few important questions in the field. Answers to those may improve our understanding of integrins and their role in the development of cancer.
Direct Electrospinning of Cellulose–Chitosan Composite Nanofiber

The direct electrospinning of a non-derivatized cellulose (Cs)–chitosan (Ch) composite nanofiber is described for the first time. Either of two cellulose preparations from different sources, i.e., cotton (CsC) or bamboo (CsB), is fabricated into composite electrospun non-woven fabrics (ESNWs) with Ch using the trifluoroacetic acid–acetic acid mixed solvent. The total concentration of Cs + Ch in the mixed solvent is fixed at 4.0 wt. -% with various Cs/Ch weight ratios of 8:2, 5:5 (Figure shows CsB/Ch-ESNW), and 2:8, which are fabricated into fine fibers in the Cs/Ch-ESNWs having average diameters mostly <100 nm. The treatment of the composite fibers with an alkaline–alcohol solution produces the water-resistant ESNWs, which can retain their fine fibrous network in aqueous environments.
UNCORRELATED DISCRIMINATIVE LOW-RANK PRESERVING PROJECTION FOR DIMENSIONALITY REDUCTION

Low-rank representation (LRR) is a tool which is used to ensnare the inherent representation of the noticed samples. Even LRR make an effective representation, but which cannot make better classification and which is weak while handling new samples and which cannot acquire projection matrix in the training period. A novel uncorrelated low rank preserving projection (UDLRPP) is introduced as dimension reduction algorithm by assimilating the un-correlation constraint and the internal region relationship of the original samples into the low rank representation (LRR). The role of UDLRPP is, the LRR can ensnare the overall structure data and the internal geometrical structure data is parallelly preserved by manifold regularization term. The low-rank representation coefficients are used to acquire the constrained term is instigated by the adaptive graph. And by adding the un-correlation analysis constraint expression, UDLRPP can attain the foremost projection matrix to enhance the classification accuracy. Several investigations completed on different public image datasets and declared that the proposed UDLRPP can acquire improved recognition rate compared with the state-of-the-art feature extraction methods.
Effects of redox initiator on graft copolymerization of methyl methacrylate onto natural rubber

Effects of cumene hydroperoxide (CHPO)/tetraethylene pentamine (TEPA), tert-butyl hydroperoxide (TBHPO)/TEPA, and potassium persulfate (K2S2O8)/sodium thiosulfate (Na2S2O3) redox initiator on methyl methacrylate (MMA) grafted natural rubber by emulsion polymerization were investigated. The optimum reaction condition for each redox initiator on the grafting of natural rubber was studied. The grafted poly(methyl methacrylate) (PMMA) stays on the surface of rubber particles. CHPO dissolves very well in the oil phase and TBHPO dissolves moderately in the oil phase, and K2S2O8 /Na2S2O3 initiation is water-soluble. Each can interact with TEPA in the aqueous phase. CHPO was found to give a higher grafting efficiency. To promote a greater grafting efficiency and yield a lower homopolymer content of PMMA, vinyl neo-decanoate (VneoD) was added. Percentages of grafting of MMA on natural rubber latex initiated by CHPO/TEPA, TBHPO/TEPA, and K2S2O8/K2S2O3 of 84.4, 74.5, and 61.1, respectively, were in good agreement with percentages of PMMA in the aqueous phase as 7.2, 12.0, and 17.9 by CHPO, TBHPO, and K2S2O8. VneoD produces allylic radicals on polyisoprene chains, favoring the grafting reaction with other vinyl monomers. CHPO/TEPA is thus a better redox system for grafting of MMA monomer on natural rubber latex. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 2587–2601, 2006
Redox competition and generation-collection modes based scanning electrochemical microscopy for the evaluation of immobilised glucose oxidase-catalysed reactions

Redox competition (RC-SECM) and generation-collection (GC-SECM) modes of scanning electrochemical microscopy were applied for the evaluation of a glucose oxidase (GOx)-modified non-conducting poly(methyl methacrylate) surface. The current vs. distance curves in RC-SECM mode were registered at −600 mV vs. Ag/AgCl to determinate local O2 concentration, taking into account that the O2 is consumed in the GOx-catalysed enzymatic reaction. This measurement was performed in phosphate–acetate buffer at pH 6.6 with 0–30 mmol L−1 of glucose using a platinum ultramicroelectrode (UME) as the moving working electrode in a three-electrode electrochemical cell. The UME current, which is related to oxygen reduction rate, decreased when glucose was added to the solution. Another part of the investigation was performed in GC-SECM mode at +600 mV vs. Ag/AgCl in order to measure local H2O2 concentration, which is formed during the GOx-catalysed enzymatic reaction. The same SECM mode was used for imaging the GOx-catalysed reaction without any redox mediator. The imaging distance was chosen based on both the RC-SECM and GC-SECM experimental results. The RC-SECM and GC-SECM modes are described, and the processes that occurred on the UME- and GOx-modified surfaces are revealed.
Membrane potential differences and viability of grapevine root cells treated with HgCl 2

The effect of mercury (Hg) on the electrophysiological and permeability properties of grapevine adventitious root cells was examined. In short-term experiments, the apical segments of adventitious roots were treated with differ ent concentrations of mercury (0.01 µmol/L to 2 µmol/L HgCl 2 ), and trans-membrane electrical potential differenc es (E M ) were monitored in root cortical cells, localized in distinct root zones. Based on Hg-induced decrease of E M , we can confirm that the depolarization of the membrane is an instant Hg-response and the extent of E M decrease is not only time- and concentration dependent, but also related to the developmental stage of cells and their localization on root axis. The sensitivity of root cells to Hg declined in the direction of cell division zone > cell elongation zone > absorption zone. Long-term treatment of roots with 2 µmol/L mercury showed that Hg-induced decrease of E M was accompanied by an increase of K + efflux and a decrease of the diffusion potential (E D ) values. Application of fusicoccin (H + -ATPase activator) to the root medium caused an immediate hyperpolarization of the membrane in
Quantification of dissolved CO2 in silicate glasses using micro-Raman spectroscopy

Abstract This study investigates the potential use of confocal micro-Raman spectroscopy for the quantification of CO2 in geologically relevant glass compositions. A calibration is developed using a wide range of both natural and synthetic glasses that have CO2 dissolved as carbonate (CO32-) in the concentration range from 0.2 to 16 wt%. Spectra were acquired in the 200 and 1350 cm-1 frequency region that includes the ν1 Raman active vibration for carbonate at 1062-1092 cm-1 and the intensity of this peak is compared to various other peaks representing the aluminosilicate glass structure. The most precise and accurate calibration is found when carbonate peaks are compared to aluminosilicate spectral features in the high-frequency region (HF: 700-1200 cm-1), which can be simulated with several Gaussian peaks, directly related to different structural species in the glass. In some samples the “dissolved” CO32- appears to have two different Raman bands, one sharper than the other. This may be consistent with previous suggestions that CO32- has several structural environments in the glass, and is not related to any precipitation of crystalline carbonate from the melt during quenching. The calibration derived using the HF peaks appears linear for both the full range of glass composition considered and the range of CO2 concentrations, even when multiple carbonate peaks are involved. We propose the following, compositionally independent linear equation to quantify the CO2 content in glass with micro-Raman spectroscopy wt% CO2 = 15.17 × CO3/HF where CO3/HF is the area ratio of the fitted ν1 carbonate peak(s) at 1062-1092 cm-1 to the remaining area of the fitted aluminosilicate envelope from 700-1200 cm-1. This is similar to the Raman calibration developed for water, but is complicated by the overlapping of these two fitted components. Using error propagation, we propose the calibration accuracy is better than ±0.4 wt% CO2 for our data set. The ν1 Raman peak position for carbonate is not constant and appears to be correlated with the density of the melt (or glass) in some way rather than the chemical composition.
INDIAN FAKE CURRENCY DETECTION USING COMPUTER VISION

- This paper developed a computer vision based approach for Indian paper currency detection. In this approach, extract currency feature and develop an own datasets used for the currency detection. By using feature extraction method of front and back side Rs. 200 denomination security feature of Indian currency note. The mainly use ORB (Oriented FAST and Rotated BRIEF) and Brute-Force matcher approach to extract the feature of paper currency, so that can more accurately detection the denomination of the banknote both obverse and reverse. Our main contribution is through using ORB and BF matcher in OpenCV based, the average accuracy of detection is up to 95.0% and tested this method on different denominations of Indian banknote.