Miracle-dz/UniFAR-FTUs huggingface dataset:
The Effect of Hathayoga on the Immune System and Mood State in Female Breast Cancer Patients After Mastectomy

Distress in breast cancer patients can cause complications and delay recovery from surgery. The aim of our study was to evaluate the effects of yoga intervention on postoperative outcomes in operable breast cancer patients; In Zagaaig university hospitals this study included (Twenty eight) female patients diagnosed stage I , II and stage111 breast cancer patients were recruited in a randomized controlled trial comparing the effects of a yoga program (Hatha type) group A (14 patients) versus other control group (14 patients ) . Subjects were assessed for, assessment of self-reported anxiety, depression, and immunity in form of ( T lymphocyte subsets (CD4% , CD8 % and natural killer (NK) cell counts) and serum immunoglobulins (IgG, IgA and IgM). The results suggest a significant improvement in the psychosocial outcomes and immunity in the yoga group ( P < 0.001), as compared to the controls We conclude that: The results suggest possible benefits of yoga in reducing postoperative complications and improvement of the life quality .
Effect of Chain Extenders on the Morphology Development in Flexible Polyurethane Foam

The effect of chain extenders on the morphology development in flexible polyurethane foam has been studied by small-angle X-ray scattering (SAXS), FTIR spectroscopy, and rheometry. Four chain extenders, diethanolamine (DEOA), 1,2-ethylene diol (EDO), glycerol, and 2-(methylamino)ethanol (MAE), were studied in a standard high-resilience (HR) foam formulation. Phase separation was observed to cause the foam modulus rise. On adding chain extenders, the onset of microphase separation was delayed, and the interdomain spacing was increased. This effect strongly depends on the chemical structure of chain extenders and the compatibility between chain extenders and urea segments. The addition of chain extenders to the formulations also delayed the onset of foam modulus growth.
The requirements of a PD measuring system analyzed in the time domain

As known, partial discharge (PD) measuring systems usually are classified according to their frequency band (wide or narrow), that also corresponds to the easiest verifiable parameter. However, the connection between the errors introduced by a given measuring system and its frequency response can be shown only qualitatively. On the contrary, by representing its behavior in the time domain, we can demonstrate in a quantitative way that to limit both the integration and the superposition errors, corresponds to contradictory requirements for the parameters of the transfer impedance.
Growth response of Suaeda salsa (L.) Pall to graded NaCl concentrations and the role of chlorine in growth stimulation

Abstract Growth response of a halophyte species, Suaeda salsa (L.) Pall, to graded NaCl concentrations was examined under water culture conditions. Growth increased with increasing NaCl concentration from 2 to 200 mol m−3, but decreased at NaCl concentrations above 200 mol m−3. Maximum growth was attained at 50 to 200 mol m−3. The role of Na and Cl in the growth stimulation by NaCl was examined by growing S. salsa in nutrient solutions with or without Na and Cl separately at 5 and 50 mol m−3. The growth stimulation induced by Cl was greater than that induced by Na, and Na did not significantly induce growth stimulation. The effect of Na or Cl on O2 evolution from leaves was examined under 5 and 50 mol m−3 concentrations using an oxygen electrode. Oxygen evolution from leaves in –Cl treatments was smaller than that in +Cl treatments both at 5 and 50 mol m−3. The O2 evolution in Na treatments with Cl was similar to that at NaCl. These results indicated that the mechanism of growth stimulation induced by Cl was mainly an increased photosystem II of photosynthesis in leaves. The contribution of Na on the growth stimulation of S. salsa by NaCl was smaller than Cl.
Application of dried anaerobic digested sewage sludge as phenol biosorbent

Untreated anaerobically digested sewage sludge was used for the first time as a biosorbent for removing phenol from aqueous solution. Results showed that adsorption capacity was influenced by the pH of the aqueous solution with an observed maximum phenol removal at pH around 6–8. The adsorption equilibrium of phenolic compounds was obtained after almost two hours with an adsorption of approximately 90% of the phenolic compounds. A sorbent concentration of 1.8 g/L was found to insure the best removal percentage and the best sorbent capacity. Both Langmuir and Freundlich models have provided reasonable fittings for the data of phenol adsorption. The experimental data fitted the pseudo-second-order kinetic model and the intraparticle diffusion model. The values of change in Gibbs free energy (ΔG°), enthalpy (ΔH°) and entropy (ΔS°) were calculated. The thermodynamic study of adsorption process showed that the process was exothermic in nature.
An example of non–uniqueness in the two–dimensional linear water–wave problem involving a submerged body

The non–uniqueness of the two–dimensional linearized water–wave problem was recently proved by McIver, who showed that there exist localized fluid motions between particular pairs of partly immersed cylinder sections. In this paper it is shown how further examples of non–uniqueness can be constructed which include the presence of a submerged circular cylindrical section in addition to a pair of surface cylindrical sections. Further examples involving non–circular sections are also presented.
Fully dynamic maintenance of euclidean minimum spanning trees

Author(s): Eppstein, David | Abstract: We maintain the minimum spanning tree of a point set in the plane, subject to point insertions and deletions, in time O(n^5/6 log1^2/2 n) per update operation. No nontrivial dynamic geometric minimum spanning tree algorithm was previously known. We reduce the problem to maintaining bichromatic closest pairs, which we also solve in the same time bounds. Our algorithm uses a novel construction, the ordered nearest neighbors of a sequence of points. Any point set or bichromatic point set can be ordered so that this graph is a simple path.
Bandwidth widening in nonlinear electromagnetic vibrational generator by combined effect of bistability and stretching

This work reports the novel concept of frequency response widening of vibrational energy harvesters exploiting the combined effects of bistable and monostable nonlinearities in a single device. The bistability is introduced into the system by repulsive arrangement of magnets, while monostable nonlinear force through the stretching is incorporated by large deformation of two-end-fixed cantilevers. The simulation results show wider bandwidth in the bistability and stretching combined configuration compared to the bistable only or the monostable stretching only configuration.
Low Pressure Combustion of Composite Propellant

The combustion behaviour of two batches of a new type of composite propellant was investigated in the pressure range between 5 kPa and 915 kPa absolute. A newly developed technique to determine simultaneously the burning rate, combustion efficiency, and the propellant's sensitivity for combustion instability is described together with a specially developed data reduction code. Notwithstanding the low pressure during the experiments no lower deflagration limit could be traced but a Vieille type burning rate law appeared to be applicable for the whole pressure range of interest. A large difference found in the combustion behaviour could be attributed to the fact that the two batches had been manufactured with AP from different suppliers. Combustion efficiency was poor while combustion instability occurred in the whole pressure range.
Enhanced catalytic and antibacterial activities of silver nanoparticles immobilized on poly(N-vinyl pyrrolidone)-grafted graphene oxide

Poly(N-vinyl pyrrolidone) (PNVP)-grafted graphene oxide (GO) (GO-PNVP) has been synthesized using a GO-based macro-RAFT agent prepared via click reaction of alkyne-terminated RAFT agent (S)-2-(propynyl propionate)-(o-ethyl xanthate) and azide-functionalized GO (GO-N3). FTIR, XPS, Raman, TGA and DSC studies confirmed its formation. Silver nanoparticles are then immobilized on GO-PNVP and GO via in situ reduction of silver nitrate in the presence and absence of glucose at 40 and 95 °C, respectively. FT-IR, UV-Vis, XRD, SEM and TGA studies supported the incorporation of silver (Ag) nanoparticles. Ag nanoparticles immobilized on GO-PNVP are small, spherical and narrowly distributed (homogenous, monodisperse) compared to GO. These nanocomposites are explored as catalysts for the reduction of p-nitrophenol into p-aminophenol and also as antibacterial agents towards Gram(+) S. aureus and Gram(−) E. coli bacteria. Ag nanoparticle immobilized GO-PNVP showed efficient catalytic activity and excellent reusability along with an excellent antibacterial activity. Hence, grafting of PNVP enhances the catalytic and antibacterial properties of GO.
Quantitative analysis of soil nitrogen and carbon at a farm scale using visible and near infrared spectroscopy coupled with wavelength reduction

Reducing large spectral datasets to parsimonious representations of wavelengths is of value for efficient storage and easing analysis, in addition to the potential to use a simpler and cheaper spectrophotometer. This study evaluated the potential of calibrating visible and near infrared (vis‐NIR) spectra to total nitrogen (N), total carbon (C), organic C and inorganic C in soil on a 15‐ha farm, with the aim of comparing several wavelength reduction algorithms and rates in terms of model prediction accuracy. We explored the uninformative variables elimination (UVE), UVE coupled with successive projections algorithm (SPA) and two uniform‐interval wavelength reduction approaches (UWR‐I and UWR‐II) with successive wavelength reduction rates (WRRs) of 2, 5, 10, 20, 50, 100, 200, 500 and 1000. The standard normal variate (SNV)‐transformed absorbance spectra of soil samples recorded from 400 to 2499 nm at 1‐nm intervals were used. The calibration sets were subjected to a partial least squares regression (PLSR) with leave‐one‐out cross‐validation. Prediction results showed that UVE can reduce wavelength variables significantly while retaining good model prediction accuracy. The UVE‐SPA produced only three or four wavelengths, with which PLSR models achieved competitive prediction performance, compared with those based on all 2100 wavelengths, with coefficient of determination (R2) of 0.91, 0.89, 0.91 and 0.53 and residual prediction deviation (RPD) of 3.53, 2.95, 3.27 and 1.53 for soil total N, total C, organic C and inorganic C, respectively. The UWR tests showed that PLSR models responded insensitively to various WRRs from 2 to 100. The models calibrated for the 100‐nm interval spectra (21 remaining wavelengths) performed almost as well as those for the 1‐nm interval spectra. Although these findings might be valid only at the farm scale, it is recommended that the proposed wavelength reduction algorithms for more soil types and soils originated from larger areas should be examined.
Fabrication of long-range surface plasmon-polariton waveguides in lithium niobate on silicon

This article describes the fabrication of long-range surface plasmon-polariton waveguides comprised of a thin narrow gold stripe buried in lithium niobate claddings. The waveguides are fabricated via direct bonding and thinning of lithium niobate wafers, resulting in bulk quality claddings. The assembly is direct bonded onto a silicon support wafer. Processing details are given along with results of physical characterization conducted on structures that underwent intermediate process steps and on completed structures.
Experimental determination of the light distribution in a photochemical reactor: Influence of the concentration of an absorbing substance on this profile

Knowledge of the local distribution of the light energy, in a photochemical reactor in the presence of an absorbing substance which reacts at a rate of order different from one with respect to the adsorbed light intensity, is important in order to calculate the mean rate of reaction and the design of the reactor. Here we report a simple method for the determination of this profile as a function of the concentration of an absorbing substance and we compare the results obtained with the models of emission from the literature. A semi-empirical model accounting for our experimental results is presented.
Effect of Spray-Drying Conditions on Physical Properties of Orange Juice Powder

Abstract Based on a full factorial experimental design, the effects of the feed ratio, atomizer speed, and inlet air temperature on properties of spray-dried orange juice powders were investigated. The results indicate that increasing inlet air temperature increases the particle size, average time of wettablity, and insoluble solids and decreases the bulk density and moisture content of the powder. Increasing atomizer speed results in increasing the bulk density and average time of wettablity of powder and decreases the particle size, moisture content, and insoluble solids of powder. Increase in feed flow rate increases the bulk density, particle size, and moisture content of the powder and decreases the average time of wettablity and insoluble solids of powder. With multivariable regression analysis the relationships between physical properties of orange juice powder and operating parameters with high coefficient were obtained.
Oligoepicatechins from the Leaves of Machilus konishii

Epicatechin (3) and five oligomers (2, 4, 5, 10, 11) together with five other type compounds were isolated and characterized from n-BuOH and EtOAc soluble fractions of the ethanol extract of the leaves of Machilus konishii Hayata. Their structures were elucidated by means of MS and NMR spectroscopic analyses. Dehydrodiepicatechin A (11) is the first occurrence as a natural product although it has been prepared from epicatechin. The stereochemistry of 11 is elucidated for the first time on the basis of 1D NOESY and chemical model analyses. Tiliroside (7) and kaempferol 3-O-α-L-(2″,4″-di-E-p-coumaroyl)-rhamnopyranoside (8) showed moderate inhibitory activity against α-glucosidase.
Kinetic origin of the ozone isotope effect: a critical analysis of enrichments and rate coefficients

The oxygen isotope anomaly in ozone was first identified in isotopomers 49O3 and 50O3 with enrichments of over 10%. Recent rate coefficient measurements imply a new interpretation of the anomaly. The large variability of the rate coefficients of ozone formation O + O2 → O3 of about 50% characterizes the ozone isotope effect and demonstrates its kinetic origin. Surprisingly, the rate coefficients correlate with the zero-point energy change of the oxygen molecules participating in the isotope exchange reactions but not with the mass of the ozone molecules. Rate coefficients of symmetric molecules depart from this linear relationship by about 20%.
Analiza rizika u procesu razvoja informacijskih tehnologija

For the purpose of understanding the risk analysis in the context of the development of information technology and information systems, this paper provides a detailed description of the risk, the risk analysis process and its components. The author's work leads us through the history of digital culture, from its very beginnings to the digital culture of the 21st century, and the assumptions about what the future holds. Due to a better understanding of the topic, information technology and information systems, as well as their development, have been described. The paper then analyses possible risks in the development of information technology and systems in general, and in the end, actual examples of risk analysis are also presented.
Microstructure anisotropy in CuO powders

An anisotropic line broadening study of CuO is reported. X-ray powder diffraction line width modifications observed are modeled when comparing data coming from (1) commercial analytical grade CuO, (2) energetic ball milling sample for 1 h, and (3) samples prepared by thermally annealing the ball milled sample at various temperatures. X-ray powder diffraction data from commercial and produced samples were analyzed by the Rietveld method using a pseudo-Voigt function. Different assumptions including size and strain anisotropy were tried to improve pattern fitting. An anisotropic strain broadening, modeled using Stephens’ approximation, yielded the best fit, thus indicating that strain anisotropy is the main source of the departure from a smooth function of line broadening as a function of 2θ observed in all samples.
Materials aspects, electrical performance, and scalability of Ni silicide towards sub-0.13 μm technologies

Ni-silicide phase formation with and without a Ti capping layer was studied by sheet resistance, x-ray diffraction and transmission electron microscopy. Ni monosilicide is found to be the stable phase in a temperature range from 400 to 600 °C. At lower temperatures the Ni2Si phase is found to be present. For temperatures higher than 700 °C NiSi is converted into NiSi2. Pyramidal NiSi2 precipitates were found to grow epitaxially along the Si〈111〉 planes for annealing temperatures as low as 310 °C. The epitaxial NiSi2 grains were found to disappear when the annealing temperature is increased. Stress buildup during Ni silicidation was measured in situ and could be correlated to the formation of the different Ni-silicide phases. The stress induced by Ni-monosilicide formation compares favorably to the stress induced by Co disilicide and Ti disilicide. The average silicon consumption required to obtain a certain sheet resistance was found to be 35% lower for Ni monosilicide compared for Co disilicide. It was f.
Dissociation and predissociation on coupled electronic potential energy surfaces: A three‐dimensional wave packet dynamical study

The dissociation process of a triatomic molecule with strongly coupled electronic states is investigated by wave packet dynamics. Rotational and vibronic motion are separated for vanishing total angular momentum (J=0) in a linear molecule with conically intersecting Σ and Π electronic potential energy surfaces. All three remaining nuclear degrees of freedom are treated exactly. The time evolution of a wave packet prepared initially by photoionization of the neutral molecule is studied for different values of the nonadiabatic couplings and for different values of other relevant parameters. The potential surfaces studied include those modeling important aspects of the HCN+ system. Time dependent populations of diabatic and adiabatic electronic states are presented. The results can be interpreted by adapting ideas developed for vibronic coupling in bound systems to the dissociative situation.
An Overview of Starch-Based Plastic Blends from Reactive Extrusion

The North American market for biodegradable plastics in 2005 was estimated to be around 60 million pounds (27 kt). Starch-based polymer blends were expected to account for 30 million pounds (14 kt) with significantly lower growth rates than other biodegradable polymers such as polyesters. The main hurdle in the growth of starch-based products is the thermodynamic immiscibility and non-wetting of starch with other polymers which leads to serious deterioration of mechanical properties at >25–30 wt% starch. Higher amounts of starch in the blends entail adding suitable functional groups on starch and other polymers in the blend to make them more compatible. The primary challenge is to develop fast reaction chemistries that can be transformed into viable processes and integrated into existing process lines with economically viable formulations. This article briefly reviews some of the most promising chemistries available for the reactive extrusion of starch-based polymer blends (biodegradable/non-biodegradable).
Kiln-, Solar-, and Air-Drying Behavior of Lumber of Tectona grandis and Gmelina arborea from Fast-Grown Plantations: Moisture Content, Wood Color, and Drying Defects

Tectona grandis and Gmelina arborea are common in commercial reforestation in the tropics. However, color variations, moisture content, and drying defects are also present in dried lumber. Moisture content variations, drying defects, and color changes were evaluated in the present work for three drying methods (kiln, solar, and air drying) during three seasons (dry, rainy, and transition season) in Costa Rica. According to the results, kiln drying had the fastest drying times, regardless of the season. On the other hand, air drying had slower drying time and higher final moisture content. With regard to defects, kiln drying produced the highest number and magnitude of defects in both species, whereas air drying showed the lowest quantity and severity of defects. No variations due to the drying methods or the season were observed in check and split, though solar drying presented intermediate values in all drying defects. The seasons of the year did not present any effect on drying defects. Finally, T. grandis dried lumber is darker than green lumber, and dried G. arborea wood is clearer. In addition, there is an increase in red ( a * ) and yellow ( L * ) tonalities, and color changes (Δ E * ) are considered perceptible or very perceptible in both species. No differences were found among the three drying methods in Δ E * , although the season of the year affected dif L * and dif C * significantly.
Role of self-formed InGaN quantum dots for exciton localization in the purple laser diode emitting at 420 nm

Structural analysis was performed on a purple laser diode composed of In0.20Ga0. 80N (3 nm)/ In0.05Ga0. 95N (6 nm) multiple quantum wells, by employing transmission electron microscopy and energy-dispersive x-ray microanalysis, both of which are assessed from the cross-sectional direction. It was found that the contrast of light and shade in the well layers corresponds to the difference in In composition. The main radiative recombination was attributed to excitons localized at deep traps which probably originate from the In-rich region in the wells acting as quantum dots. Photopumped lasing was observed at the high energy side of the main spontaneous emission bands.