Miracle-dz/UniFAR-FTUs huggingface dataset:
Studies on effect of consortia of beneficial organisms on chemical properties of spinach in pot culture experiment

The research entitled with “studies on effect of consortia of beneficial organisms on chemical properties of Spinach in pot culture experiment” was conducted during the year 2017-2018 in two phases. In first phase the consortia was prepared from different nine beneficial bacteria and applied to the spinach. In second phase, pot culture experiment was carried out with six set of treatments replicated trice to study the effect of consortia on beneficial organisms on chemical properties (pH, electrical conductivity and calcium carbonate) of spinach. The results revealed that improved chemical properties and plant growth. Amongst the six treatments RDF+ consortia (T5) showed significantly higher results followed by only consortia (T3) compared with other treatments and absolute control. Amongst RDF +consortia treatment was slightly acidic to neutral in pH, highest content of organic carbon and lowest in lime.
A Photoacoustic Sensor System for Time Resolved Quantification of Diesel Soot Emissions

ABCTRACT The reduction of particulate emissions limits requires new tools for the tuning of engines and exhaust aftertreatment systems. Time-resolved monitoring of low soot emissions is a key feature for such developments. The paper describes an improved photoacoustic soot sensor, and presents its applications for the characterization of transient exhaust soot emissions before and after Diesel emission after-treatment systems. The detection limit of the unit is around 5 μg/m 3 soot, which is two orders of magnitude better than conventional time-resolved transmission measurement. Additionally, a wide dynamic range of four orders of magnitude can be achieved without range switching. The photoacoustic signal is proportional to the soot mass, no significant cross-sensitivities to gaseous absorbers were detected.
Effects of low oxygen culture on pluripotent stem cell differentiation and teratoma formation

Pluripotent stem cells (PSC), including embryonic stem cells (ESC) and induced pluripotent stem cells (iPSC), hold promise for cell replacement therapies and embryonic developmental studies. Efficient differentiation to desired cell types remains a major obstacle, and residual PSC within differentiated populations are problematic because of their potential to form teratomas. Most PSC research is performed in high, non-physiological partial pressures of O2 (pO2). However, cells during embryonic development are exposed to much lower pO2 and are affected by the expression of O2sensitive developmentally-important transcription factors, including hypoxia inducible factor-1 (HIF-1). This doctoral work demonstrates that physiological pO2 markedly influences differentiation to mesodermal, ectodermal, and endodermal derivatives, with enhanced differentiation to cardiomyocytes in particular, and reduces tumorigenic residual PSC from the resulting differentiated cellular populations.
Sodium Molybdate as a Corrosion Inhibitor of Mild Steel in Natural Waters Part 1: Flow Rate Effects

Abstract Sodium molybdate (Na2MoO4) has been proposed as a possible replacement for chromate-based corrosion inhibitors for steel. Although Na2MoO4 is used in industry, little characterization of its behavior in low-conductivity natural waters or under flowing conditions has been performed. Effects of flow rate and water treatment on ASTM A36 carbon steel (UNS K02600) in natural lake water has been examined by electrochemical impedance spectroscopy (EIS) using the rotating cylinder electrode technique. The corrosion behavior of A36 steel was found to be highly dependent upon flow rate in untreated natural water, but only moderately dependent upon flow rate in waters treated with Na2MoO4, as determined by alternating and direct current methods. The electrochemical impedance spectra of steel in natural water were corrupted by artifacts at frequencies of 100 Hz and above. These artifacts were exacerbated by the low conductivity of the natural water. The solution and polarization resistances were isolated in .
Laminar burning speed measurements of indolene-air-diluent mixtures at high pressures and temperatures

The laminar burning speeds of two practical multi-component hydrocarbon fuels similar to automotive gasoline were measured using a spherical combustion bomb with central ignition. Mixtures with equivalence ratios between 0.7 and 1.6, and volume fractions of simulated residual gas between 0 and 0.3 were tested at pressures from 0.4 atm to 12 atm and unburned gas temperatures from 350 K to 550 K. The laminar burning speeds were fitted to a power function expression involving the unburned gas pressure and temperature, and the diluent fraction. The pressure and temperature dependences of the laminar burning speed for undiluted mixtures agreed well with values reported by other investigators for various fuels, indicating that these dependences are independent of fuel type. The percentage reduction in laminar burning speed due to the addition of simulated residual gas was found to be a function only of the amount added, independent of the properties of the mixture.
Minimal models for lipid membranes: local modifications around fusion objects

Solvent-free soft coarse-grained models are particularly appropriate to investigate collective phenomena in lipid membranes. In this work we exploit such a model to show how modifying a few model parameters we can control the bending rigidity of the membrane, the hydration repulsion, and the macroscopic phases of self-assembled structures. Further, we investigate the lipid mediated interactions between fusion objects: transmembrane proteins, pores and stalks. The presence of such defects induces a perturbation in the shape of the membrane and in the conformations of lipids. The modi cations induced by single defects superimpose and for some defect interaction (peptide-peptide, pore-peptide) we identify the equilibrium distance between these objects. The prediction of the results of the simulations are compared with the numerical solution of a continuum model parametrized from the analysis of the simulation snapshots. The presence of transmembrane proteins with a large hydrophobic mismatch weakens the membrane over the direct interaction range decreasing slightly the membrane thickness. This involves the lowering of the line tension of the pore and for a particular number and spatial arrangement of proteins the line tension of the pore is negative and the pore is stable in tensionless membranes. Another agent that in uences the line tension of the pore is oil (short hydrophobic chains). The oil has a con guration space larger than the one of the lipids and partitions to relax the frustration of the lipids at the interfaces and increases the line tension of the pore (the membrane is more resistant under lateral tension). The model parameters have a large in uence on the equilibrium properties of a stalk and we study the characteristic sizes of stalks depending on the hydration between two opposed bilayers and compare the results to other simulation models and experimental data. We show how hydration and lateral tension in uence bilayer repulsion and how the combined e ect of both contributions leads to membrane fusion.
Evaluation of analytical methods to address challenges in the characterization of protein formulations

Maintenir l’integrite des proteines de la production a l’utilisation constitue un enjeu de taille pour le developpement de formulations pharmaceutiques. Le besoin de methodes de caracterisation adaptees a ces formulations va de paire. L’objet de cette these est d’evaluer des methodes relativement rapides pour la caracterisation de formulations de proteines sans alteration des echantillons. Differents types de produits pharmaceutiques, tels que la calcitonine de saumon, un facteur de croissance, des anticorps monoclonaux et des vaccins contre la grippe saisonniere sont etudies. Les resultats obtenus montrent que la spectroscopie Raman de resonance dans l’ultraviolet (UVRR) avec une excitation a 244 nm est adaptee a la caracterisation des proteines dans une large gamme de concentrations et convient a l’etude des proteines en solution, agregees ou a l’etat solide. Le Nanoparticle tracking analysis (NTA) permet l’etude de l’agregation. Des methodes rapides permettent de caracteriser la stabilite de vaccins de types sous-unitaire, fractionne ou virosomal.
The Crystal Structure and Magnetic Behavior of [Cu2(dien)2CI2](CIO4)2

Abstract The compound [Cu2(dien)2Cl2](C1O4)2 crystallizes in the orthorhombic system, space group Pbn21, with unit cell dimensions: a = 7.637(1) A, b = 13.549(3) A, and c = 20.866(4) A, with four molecules in the unit cell (Z = 4). The structure consists of dimeric [Cu2(dien)2C12]2+ units in which the coordination about copper(II) is highly distorted square-pyramidal. Magnetic susceptibility data shows a pair of exchanged coupled S = 1/2 ions and yields J = +0.4(3)cm−1 when the EPR g-factor value of = 2.104 is used.
Distribution of cytochrome c in polyacrylate microgels

The uptake of cytochrome c from aqueous solution (pH = 7, ionic strength 40 mM) into weakly cross-linked sodium polyacrylate microgels is investigated by means of micromanipulator-assisted light microscopy and laser scanning confocal microscopy. It is shown that the protein is distributed uniformly in the gels at equilibrium. The kinetics of the interaction is investigated by means of time-resolved deswelling curves, and by observations of the diffusion fronts of fluorescently labeled cytochrome c in single gel particles. The time to reach the deswollen equilibrium state of the gels is short, in general, and decreases rapidly with increasing protein concentration in the solution, indicative of a rapid diffusive transport inside the microgels. The results are compared with results for lysozyme binding with the same type of network, and with results for macrogels in the literature. The importance of net attractive protein–protein forces for the mechanism of binding is highlighted.
Dynamics of heterogeneous azeotropic distillation columns

A new dynamic model has been developed for heterogeneous azeotropic distillation columns, which is capable of automatically detecting and accounting for multiple liquid phases on trays at each instant of time. Extensive dynamic simulations have been carried out for the heterogeneous distillation of ethanol, water and benzene. Our results are in general agreement with prior work, which shows that this class of separations can be expected to exhibit multiple steady states, complex dynamic behavior, and parametric sensitivity. One of the most unexpected results was that these systems exhibit parametric sensitivity with respect to small changes in column pressure. For systems vented to the atmosphere, small increases in the barometric pressure lead to loss of interface in the decanter over a 24-hour period. If small pressure variations of this sort are left uncontrolled long enough, the entire separation will fail. Small decreases in the barometric pressure do not have such a disastrous effect.
Ion confinement and transport in a toroidal plasma with externally imposed radial electric fields

Strong electric fields were imposed along the minor radius of the toroidal plasma by biasing it with electrodes maintained at kilovolt potentials. Coherent, low-frequency disturbances characteristic of various magnetohydrodynamic instabilities were absent in the high-density, well-confined regime. High, direct-current radial electric fields with magnitudes up to 135 volts per centimeter penetrated inward to at least one-half the plasma radius. When the electric field pointed radially toward, the ion transport was inward against a strong local density gradient; and the plasma density and confinement time were significantly enhanced. The radial transport along the electric field appeared to be consistent with fluctuation-induced transport. With negative electrode polarity the particle confinement was consistent with a balance of two processes: a radial infusion of ions, in those sectors of the plasma not containing electrodes, that resulted from the radially inward fields; and ion losses to the electrodes, each of the which acted as a sink and drew ions out of the plasma. A simple model of particle confinement was proposed in which the particle confinement time is proportional to the plasma volume. The scaling predicted by this model was consistent with experimental measurements.
Defoliation impacts on Festuca campestris (Rydb.) plants exposed to wildfire

Wildfires commonly occur in the Fescue Prairie of Alberta, but little information exists to provide a basis for making grazing recommendations after burning. A wildfire in April 1999 provided an opportunity to study the effect of season and intensity of post-burn defoliation on foothills rough fescue (F. campestris Rydb.) in southwestern Alberta. A 3 (date of defoliation) x 2 (defoliation intensity) factorial experiment with 10 replicates (plants) was established in both a burned and a non-burned grassland and analyzed as a nested design. Plants were defoliated once during active vegetative growth (17 May), inflorescence development (2 July), or dormancy (30 September), at either 5 or 15-cm clipped stubble heights in the first growing season after fire. Burning increased tiller numbers by 54% compared to non-burned plants but reduced plant ANPP by 51% in the second growing season. While a single defoliation of burned plants, particularly early in the year, had little effect on growth, delaying defoliation into July decreased tillers 1 year later. Increasing defoliation intensity had the greatest impact on non-burned plants, reducing plant height (15%) as well as tiller (21%) and plant (32%) ANPP in the second year. May defoliation reduced etiolated growth 1 year later regardless of burn treatment. A single grazing event after wildfire does not necessarily appear to detrimentally affect rough fescue; however, the low herbage available immediately after fire may not justify the increased risk to the plant with subsequent grazing. DOI:10.2458/azu_jrm_v56i4_bogen
Kinetic theory for identical, frictional, nearly elastic spheres

We derive a simple kinetic theory for collisional flows of identical, slightly frictional, nearly elastic spheres that is based on a physically realistic model for a frictional collision between two spheres. When the coefficient of friction is small, the equations of balance for rotational momentum and energy can be solved in approximation. This permits the rotational temperature to be related to the translation temperature and the introduction of an effective coefficient of restitution in the rate of dissipation of translation fluctuation energy. With this incorporation of the additional loss of translational energy to friction and the rotational degrees of freedom, the structure of the resulting theory is the same as for frictionless spheres.
Orientation and electronic structure of methylene blue on mica: A near edge x‐ray absorption fine structure spectroscopy study

Methylene blue adsorption from aqueous solution is widely used for the determination of the specific surface area of mica. In this procedure, knowledge of the space requirement for each ion‐exchange‐reacted methylene blue (MB) molecule is a prerequisite for a precise determination of the specific surface area. There is, however, some disagreement about the correct value due to the unknown orientation of the adsorbed MB molecules. In the present study the electronic structure and orientation of MB on muscovite mica is investigated with x‐ray photoelectron spectroscopy and the synchrotron‐based technique of near edge x‐ray absorption fine structure spectroscopy. It was found that the MB molecules are tilted, with their largest face inclined at 65–70° with respect to the surface. This value disagrees with common a priori assumptions that MB lies flat on the surface, i.e., the specific surface area of mica is overestimated in many cases by a significant factor. The results, however, agree with a recent study .
A fast reflectance anisotropy spectrometer for in situ growth monitoring

We report on an optical multichannel RAS (Reflectance Anisotropy Spectroscopy) setup capable of measuring at multiple photon energies simultaneously in the spectral range between 1.4 and 5.0 eV at a temporal resolution of up to 30 ms. The setup is specifically designed for time‐resolved studies of surface processes (e.g. epitaxial growth). Its accuracy was evaluated on static surfaces by comparison with RAS spectra acquired using a conventional scanning RAS setup. The performance was demonstrated by studying 2D island growth oscillations during GaAs epitaxy with TMGa and AsH3 or tBAs in metal‐organic vapour phase epitaxy (MOVPE). (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Effect of Biofertilizers on Vegetative Growth of Okra

An experiment was carried out at the Field Laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh from March to July, 2001 to investigate the effect of biofertilizers on morpho-physiological characters of okra. The experiment was laid out in a randomized complete block design with four replications. There were nine treatments such as (control), (Azotobacter biofertilizer), (Azospirillum biofertilizer), (Azotobacter+Azospirillum biofertilizers), (Azotobacter+Cowdung 5 ton ), (Azospirillum+Cowdung 5 ton ), (Azotobacter+Azospirillum+Cowdung 5 ton ), (Cowdung 5 ton ) and (60% Nitrogen). The experimental results revealed that significant variations exist among the treatments regarding morphological characters e.g. plant height, number of leaves/plant, stem base diameter, tap root length, and physiological characters like, root dry weight, leaf area index and crop growth rate. Number of leaves/plant, stem base diameter, root length, root dry weight, leaf area index and crop growth rate were found higher in , , and than the others. In all the parameters, gave the similar result with biofertilizers in combination with cowdung treatments and showed identical with (control). Biofertilizer treatments had insignificant effect on 1000-seed weight(g). Experimental results mentioned above revealed that morpho-physioligical characters of okra could be modified by the application of biofertilizer+cowdung. However, biofertilizers+Cowdung treatments were comparable to (60% Nitrogen) in this study. This suggests that or or were more benificial in environmentally friendly okra cultivation and may be used as an alternative of inorganic nitrogen by saving cost of production and sustaining productivity.
Ultrafast X-Ray and 2-Dimensional UV Spectroscopic Studies of Hexacyanoferrate Ions in Solution

Keywords: Time-resolved spectroscopy ; X-ray absorption ; X-ray emission ; EXAFS ; XANES ; two-dimensional UV transient absorption spectroscopy ; synchrotron radiation ; molecules ; solvation dynamics ; substitution reactions ; reaction mechanisms These Ecole polytechnique federale de Lausanne EPFL, n° 5880 (2013)Programme doctoral PhysiqueFaculte des sciences de baseInstitut des sciences et ingenierie chimiquesLaboratoire de spectroscopie ultrarapideJury: V. Savona (president), M. George, A. Hauser, I. Tavernelli Public defense: 2013-8-13 Reference doi:10.5075/epfl-thesis-5880Print copy in library catalog Record created on 2013-07-31, modified on 2017-12-10
Skeletal muscle function and free radicals : from cell to COPD

Limited data are available on the effects of nitric oxide (NO) on skeletal muscle intracellular calcium ([Ca]i) regulation. In the present study we used real-time confocal microscopy to examine the effects of two NO donors on acetylcholine (ACh, 10μM) and caffeine (10 mM) induced [Ca]i responses in C2C12 mouse skeletal myotubes. We hypothesized that NO reduces [Ca]i in activated skeletal myotubes through oxidation of thiols associated with the sarcoplasmic reticulum Ca release channel. Exposure to diethylamine NONOate (DEA-NO) reversibly increased resting [Ca]i level, and resulted in a dose dependent reduction in the amplitude of ACh-induced Ca transients. Exposure to 10 μM DEA-NO reduced the amplitude to 75 ± 7% of initial value, whereas 100 μM DEA-NO reduced the amplitude to 22 ± 14% of initial value. These effects of DEA-NO were partly reversible after subsequent exposure to dithiotreitol (DTT; 10 mM). Pre exposure to DEA-NO (1, 10, 50 μM) also reduced the amplitude of caffeine-induced Ca transients. Similar data were obtained using the chemically distinct NO donor S-nitroso-N-acetylpenicillamine (SNAP; 100 μM). These data indicate that NO reduces SR Ca release in skeletal myotubes, probably by modification of hyperreactive thiols present on the ryanodine receptor.
Effects of a novel protease enzyme (CIBENZA DP100) on finishing pig growth performance and carcass characteristics

A total of 1,170 pigs (PIC 337 × 1050; initial BW 56.3 lb) were used in a 131-d study to determine the effects of a protease enzyme on growth performance and carcass characteristics of finishing pigs. Dietary treatments consisted of: (1) a positive control diet formulated to provide 90% of the standardized ileal digestible (SID) lysine requirement for these pigs; (2) a negative control diet formulated to provide 90% of the SID lysine requirement minus the expected nutrient release (both amino acids and dietary energy) from the protease enzyme (CIBENZA DP100, Novus International, Inc., St. Charles, MO), and (3) the negative control diet with the addition of 0.05% CIBENZA DP100. The diets were formulated such that the negative control diet containing the protease enzyme had calculated nutrient concentrations similar to the positive control. Pens of pigs were randomly allotted to 1 of 3 treatments with 26 pigs per pen and 15 replicates per treatment.
Contribuições ao projeto de leitores e dispositivos sensores baseados em retroespalhamento sem chip, de baixo custo

Chipless tags for objects identification have been proposed as a low-cost alternative to the well-known chipped Radio Frequency IDentification (RFID) tags technology. More recently, chipless sensors have also been indicated for specific applications in which RFID-based sensor are not very suitable, such as in harsh environments or ultra-low cost item monitoring. This research have focused on the study of a chipless monitoring system. It was identified that the reading range is one of the most important concerns of these systems, specifically when both the sensor and the reader are size restricted due to a specific application. Consequently, in this work, a new sensor design is proposed to tackle this issue. Several prototypes of the sensor have been implemented in low-cost substrates, such as common PCB glass epoxy-based laminates, and flexible substrates such as plastic and paper. These have shown comparable results to the reported sensors in literature in terms of sensitivity and, more importantly, a superior radar cross section level considering its reduced size. In addition to the sensor, a theoretical analysis and some tests were conducted to prove the need of implementing self-interference cancellation techniques in single-antenna monostatic chipless readers for improving the readability of the tag. Both proposals, on the sensor and on the reader side, can contribute to the reading range enhancement in frequency coded chipless systems.