Miracle-dz/UniFAR-FTUs huggingface dataset:
Morphology and Catalytic Application of Homogeneous Nano-composite Oxides Containing Titania

Abstract A series of mixed oxide supports consisting of TiO2 and Cr2O3 or Fe2O3 with different wt% of Cr2O3 or Fe2O3 (5–20 wt%) were prepared by two methods: precipitation and impregnation. The catalysts containing MoO3 and NiO were prepared by successive impregnation with the appropriate amounts of ammonium heptamolybdate and nickel nitrate on the calcined support to obtain catalysts with 8.0 wt% MoO3 and 3.0 wt% NiO. The surface areas (SBET), the pore volumes, and the average pore diameters were measured by nitrogen adsorption method; all catalysts containing MoO3 and NiO have surface areas less than the pure supports due to the blocking of some pores by Mo and/or Ni ions leading to a decrease in the total pore volume of these catalysts. The structures of the samples have been investigated by powder X-ray diffraction (XRD) and differential thermal analysis (DTA). The results showed that the mixed oxide samples containing Cr2O3 or Fe2O3 were nanosized particles, and they existed as an amorphous phase in the samples. The investigation by infrared spectroscopy (FT-IR) indicated that there were interactions between Cr2O3 or Fe2O3 and TiO2 in the mixed oxide. The prepared samples were purposively used as the supports for hydrodesulfurization (HDS) process. The sulfided catalysts were tested in the HDS reaction of thiophene, and the results showed that the highest thiophene HDS conversion in this system requires an optimum content of Cr2O3 or Fe2O3 in the mixed oxide support, which is considered as 10 wt% in this study. Nevertheless, the way of incorporation has significant effects on catalytic activity.
PRODUCTION PERFORMANCE AND CARCASS CHARACTERISTICS OF BROILERS FED DIETS WITH OR WITHOUT PHYTASE SUPPLEMENTATION

To evaluate the effect of phytase supplementation, 300 day-old broiler chicks were distributed to five treatments following a completely randomized design: T1 - Positive Control (PC); T2 - Negative Control 1 (diet with available phosphorus [P], calcium [Ca] and metabolizable energy [ME] lower than PC by 0.15%, 0.18% and 75 kcal/kg, respectively); T3 - T2 + 100 g phytase per ton of feed; T4 - Negative Control 2 (diet with available P, Ca and ME lower than PC by 0.18%, 0.23% and 95 kcal/kg, respectively); and T5 - T4 + 200 g phytase/ ton of feed. Phytase supplementation improved body weight, weight gain and feed efficiency of broilers fed the negative control diets. Significant differences among treatments were observed in % abdominal fat, % leg and % thigh. Higher income over feed and chick cost was obtained in broilers fed diets with phytase compared to those fed the negative and positive control diets. The results suggest that growth performance of broilers fed diets with lower specification in available P, Ca and ME is not adversely affected if phytase is added in the diet. Keywords: broilers, carcass, growth performance, phosphorus, phytase
THE RELATIONSHIP BETWEEN pH AND EXCHANGEABLE SODIUM IN A SODIC SOIL

Sodic soils formed under the influence of sodium carbonate have a distinct geographic distribution and physicochemical properties. The pH of calcareous sodic soils can be defined by the equilibrium partial pressure of carbon dioxide and alkalinity. The high pH and exchangeable sodium ratio (ESR) of calcareous sodic soils are primarily due to high alkalinity in low pCO2-salt environments. A theoretical expression based on Na-(Ca + Mg) exchange equilibrium in sodic soils is developed to quantitatively relate exchangeable sodium ratio with pCO2, pH, sodium concentration, and ionic strength. For calcareous sodic soils containing sodium carbonate, the pH of the system adequately describes the ESR and, therefore, the exchangeable sodium percentage (ESP) of the soil.
Cesium encapsulation in single-walled carbon nanotubes via plasma ion irradiation: Application to junction formation and ab initio investigation

Using an approach different from the conventional vapor doping methods, Cs positive ions in a magnetized-plasma column are irradiated upon a negatively biased substrate which is covered with dispersed single-walled carbonnanotubes (SWNTs). The Cs ions are evidently observed inside SWNTs by the Z-contrant method in scanning transmission electron microscopy, demonstrating the formation of alkali-metal encapsulating SWNTs. Ab initio band structures and density of states for the light and heavy doping regimes indicate the possibility of using Cs-doped SWNTs as doped junctions, with potential application in nanoelectronics. This is supported by the direct experimental observation of an actual junction.
The relationship between flash point and LFL with application to hybrid mixtures

There usually is a significant difference between the flash point and the equilibrium liquid/vapor (“saturation”) temperature that corresponds to the lower flammable limit (LFL). This occurs because (1) the LFL is frequently not measured at the flash point temperature and (2) the LFL concentrations are typically for upward propagation of flame, whereas the flash point is obtained for downward propagation of flame, and upward propagation occurs at lower (“conservative”) concentrations. In this paper, guidance is given for “correcting” this difference. Since many “hybrid” mixtures of flammable vapors and combustible dusts occur at elevated temperatures (as in driers), it may be important that the effect of temperature on the LFL be taken into account.
Measuring Validity of the Determinants of Investment Decision Making

The growing importance of behavioral finance and investment decision is the motivation to carry out the present study. The purpose of the present study is to validate the items to measure Heuristics, Risk Aversion, Financial Tools and firm level corporate governance as antecedents of investment decision making. The study collected response from 94 equity fund managers of insurance companies, commercial banks, and equity investment companies. Initially the scale items were forty one (41). The instrument of thirty seven (37) items is finalized after applying confirmatory factor analysis using AMOS version 16. Further study may be carried out to use the validated items of variables using descriptive analysis and investigate the interrelationships of the variables.
REPRODUCTIVE AND PRODUCTIVE EFFICIENCY OF BARKI EWES FED ON NIGELLA SATIVA MEAL AS A SOURCE OF RATION PROTEIN

Sixty adult Barki ewes (2.0-3.0 years old and 38.89 ± 1.02 kg average body weight) were used to investigate the effect of feeding Nigella sativa meal as an alternative source of protein on the reproductive and productive performance of Barki ewes. Animals were randomly assigned into equal three groups (20 each). The first group (G1) served as control and fed the basal diet contain 20% cotton seed meal and 6% soya bean meal as a source of ration protein, while the second group (G2) fed diet contained 13.5% of Nigella sativa meal (NSM) and 8% soya bean meal as a source of ration protein. The Third group (G3) fed diet contained 25% of NSM as a source of ration protein. All groups were offered berssem (Trifolium alexandrnum) hay ad libitum, and rations were adjusted monthly to cover their requirements during their different physiological status.Reproductive traits in terms of conception and lambing rates, abortion and stillbirth rates, number of lambs born alive and weaned and mortality rate from birth to weaning were measured during this study. Birth and weaning weights as well as body weight changes of ewes recorded during different physiological stages. Milk yield and composition were also determined. Results indicated that conception and lambing rates were insignificantly higher in G1 and G2 compared with G3. While number of lambs born alive was higher in G2 and G3 than control group (19 and 18 Vs. 17 lambs for G2, G3 and G1 respectively). Birth and weaning weights were significantly higher in G3 then G2 compared with control group. G3 recorded higher milk production during lactation period (627.29 ml/h/d) then G2 (601.33 ml/h/d) while control group recorded the lowest value (587.33 ml/h/d). Progesterone profile in the three experimental groups was found to follow the normal pattern reported in the literature. Progesterone levels insignificantly increased in control group than other two groups during pregnancy, especially during late pregnancy and decreased to the basal values after parturition. In conclusion, we can use NSM as an alternative source of ration protein to improve reproduction and production efficiency of Barki ewes under arid conditions of North Western Coast of Egypt.
Untersuchung der Polymerdynamik in Abhängigkeit von Kettenlänge,Temperatur und Druck mit Hilfe von Molekulardynamik Simulationen

Unter Verwendung von Molekulardynamik Simulationen werden Dynamik und Struktur von Schmelzen aus ataktischem Polypropylenoxid variabler Kettenlange N bei verschiedenen Drucken p und Temperaturen T studiert. Beginnend mit der Analyse segmenteller Relaxationsprozesse wird die Glasdynamik untersucht und der Frage nachgegangen, wann ein Molekul zu einem Polymer wird, d.h. ab welcher Kettenlange polymerspezifische strukturelle und dynamische Eigenschaften auftreten. Dabei wird auch die fur Polymere charakteristische intramolekulare Heterogenitat der Dynamik mit Hilfe von positionsspezifischen Korrelationsfunktionen analysiert. Es gelingt die intramolekular heterogene Mobilitat zu eliminieren und so isoliert den intermolekularen Anteil dynamischer Heterogenitaten zu betrachteten. Hierbei wird insbesondere die Kopplung zwischen dynamischen Heterogenitaten und der Strukturrelaxation evaluiert und in Form einer von N , T und p unabhangigen Hyperskalierungbeziehung mathematisch gefasst. Die polymerspezifische Dynamik wird im Rahmen des Rousemodells ausgewertet und offenbart auf kleinen Langenskalen den dynamischen Heterogenitaten geschuldete Abweichungen von der theoretischen Vorhersage. Der mit steigendem Polymerisationsgrad vorhergesagte Wechsel von Rouse- zu Reptationsverhalten ist nicht scharf, sondern erstreckt sich uber einen breiten Kettenlangenbereich. Es wird gezeigt, dass der verzogerte Ubergang teilweise durch mobile Endgruppen begrundet ist. Der Einfluss geometrischer Restriktionen auf die Strukturrelaxation wird durch die Simulation von Polymeren in Nanoporen untersucht. Durch Analyse der Strukturrelaxation in Abhangigkeit von der Dichte und vom Ort in der Pore, wird der Frage nachgegangen, ob es einen inharenten Confinementeffekt gibt oder ob die beobachteten Phanomene das Resultat eines Oberflacheneffekts sind. Insbesondere wird gezeigt, dass die spezifische Wechselwirkung des Polymers mit der Wand die dort beobachtete Verlangsamung der segmentellen Relaxation dominiert und diese nicht das Resultat der in Wandnahe erhohten Dichte ist. Durch benetzen der Pore mit Wasser wird der harte Charakter des Confinements aufgeweicht, die Dichteoszillationen verringern sich und die Strukturrelaxation beschleunigt sich; Wasser wirkt als Schmiermittel.
NRF2 and Age-Dependent RPE Degeneration

Retinal pigment epithelium (RPE) is a single layer of epithelial cells lined between the neurosensory retina and choriocapillaris. It is part of the blood-retinal barrier and is a central component of the visual phototransduction pathway. RPE cells regenerate 11-cisretinal by RPE65 isomerase and its related enzymes and chaperones (Moiseyev et al., 2006; Xue et al., 2004). They are professional phagocytes and are responsible for the clearance of daily shed photoreceptor outer segments (POS) (Young, 1967; Young & Bok, 1969). The multi-step process of phagocytosis includes receptor-mediated binding of POS to the RPE (Finnemann et al., 1997), internalization (Feng et al., 2002; Finnemann & Silverstein, 2001), transport to lysosome and degradation. The importance of RPE phagocytosis has been clearly illustrated by the Royal College of Surgeons (RCS) rats, which carry a mutation in Mertk gene (D'Cruz et al., 2000). MERTK is a membrane-associated receptor tyrosine kinase and is activated upon binding of POS to the RPE (Feng et al. 2002). In RCS rats, loss-offunction mutation of Mertk causes defects in phagocytosis and consequently these animals develop inherited retinal dystrophy and photoreceptor apoptosis (Tso et al., 1994). In addition to their roles in the visual cycle, RPE cells provide vital support for the structure and function of the outer retina. They transport ions, water and nutrients between choroidal blood supply and the retina, and synthesize melanin which absorbs light and shields the retina. RPE-produced growth factors, such as vascular endothelial growth factor (VEGF), are indispensable for the choroidal vasculature (Saint-Geniez et al., 2009).
Theoretical analysis of spectral structure: Doorway state coupling schemes

The absorption spectrum of a molecule is analyzed theoretically in terms of a doorway state coupling scheme developed earlier [A. R. Ziv and W. Rhodes, J. Chem. Phys. 65, 4895 (1976)], whereby a set of sequentially coupled states, each having complex energy, is produced. The Green’s function method which is further developed in this paper produces this set of doorway states called the spectroscopic channel basis (SCB) and the spectrum of interaction of each doorway with all remaining states of the system. The latter is referred to as the interaction density spectrum (IDS), and it contains information on the radiative and radiationless decay properties of the doorway state. The IDS is also the (weighted) distribution function for the next doorway state in the SCB chain. The molecule–radiation field nature of the basis states is considered for each stage of the analysis. The method is applied to the (0,0) band of the S2←S0 transition in naphthalene and to the 2B2←2A1 band system of NO2 in order to compare o.
Molecular fluorescent reporters for force and smart surfaces for sensing cell-surface interaction

Molecular sensors are powerful because they make it possible to adapt the measurement to the sample instead of a sample to an instrument. Many reporter are available for measuring the chemical properties of a sample, but no purpose-built molecular sensors exist to report a sample's mechanical properties. To address recent interest in the mechanical coordinate of molecular interactions, we developed a prototype molecular sensor, calibrated its force-fluorescence relationship, and adapted the sensor to a cell adhesion assay. This thesis focuses on the considerations for combining force measurement with the environmental and distance sensitivity offered by fluorescence to measure cell-surface adhesion. We showed that DNA can be used as a scaffold to build a sensor molecule, that fluorescence can be used as a reporter of a threshold force, and that introducing cells to the sensor molecules changes the fluorescence properties. Because Cy3 experiences an enhanced intensity sensitivity when conjugated to DNA, the reporter's FRET signal was occluded and we instead activated the sensor complex as a novel, all-fluorescent means of reporting cell-surface proximity. This method for reporting cell-surface separation is significant because it simplifies measurements in thicker and more complex materials interesting to cell-substrate interaction studies. Thesis Supervisor: Paul Matsudaira Title: Professor of Biology and Biological Engineering Thesis Supervisor: Matthew Lang Title: Professor of Mechanical Engineering and Biological Engineering
High pressure phase transitions and compressibilities of Er2Zr2O7 and Ho2Zr2O7

Phase stability and compressibility of rare earth zirconates with the defect-fluorite structure were investigated by in situ synchrotron x-ray diffraction. A sluggish defect-fluorite to a cotunnitelike phase transformation occurred at pressures of ∼22 and ∼30GPa for Er2Zr2O7 and Ho2Zr2O7, respectively. Enhanced compressibility was found for the high pressure phase as a result of increasing cation coordination number and cation-anion bond length.
Biomechanical analysis of the men's javelin throw at the 1995 world championships in athletics

« V This paper presents on analysis of some of the best throws in the men's javelin final at the 1995 World Championships held in Sweden. Far each throw, the release conditions are given, as is a technical breakdown of each athlete's movements Certain technical factors which are considered fundamental to the throwing techniques of elite athletes such as the hip and shoulder axes alignment, maintenance of a long acceleration path and the ability to block effectively were studied and full details ore provided within the report. It was notable that all the medallists showed a definite ability to generate the highest release speeds However, the upper body movements used to produce these speeds varied considerably between throwers. Therefore, the muscles that each athlete uses to accelerate the implement should receive similar stresses when training. Without knowledge of an athlete's competitive throwing movement patterns, this is a very difficult task, A A 1 Introduct inn
High resolution SIMS analysis of arsenic in rice

Determining the distribution of trace elements in biological materials with subcellular resolution is very challenging but vitally important in order to understand their mechanisms of uptake. Rice grain is efficient in the accumulation of arsenic (As) in the grain, potentially posing a severe health risk to millions of people in South‐East Asia. The NanoSIMS is a state‐of‐the‐art microscope capable of high resolution chemical imaging (down to 50 nm) and detecting very low elemental concentrations (parts‐per‐million levels). This makes it ideally suited for trace element localisation in biological materials. This paper shows how the NanoSIMS can be used to investigate the localisation of As in rice grain at high resolution and how different treatments result in different distributions in the grain. The precise location of parts‐per‐million As concentrations and its localisation with other elements at the subcellular scale in rice roots are also shown. Copyright © 2012 John Wiley & Sons, Ltd.
Diacetylene omega-glycols. Etherates - adducts of 1,6-di(p-halogeno)-1,6-diphenylhexa-2,4-diyne-1,6-diols with diethyl ether and dioxane

Stable, crystalline adducts of the title diols (F, Cl, Br, I) with diethyl ether and dioxane have been obtained. Spectral properties have been described. No formation of etherates from tetraphenyl diols not containing halogen atoms (1) has been found.
Accelerated development of CuSbS2 thin film photovoltaic device prototypes

Development of alternative thin film photovoltaic technologies is an important research topic because of the potential of low‐cost, high‐efficiency solar cells to produce terawatt levels of clean power. However, this development of unexplored yet promising absorbers can be hindered by complications that arise during solar cell fabrication. Here, a high‐throughput combinatorial method is applied to accelerate development of photovoltaic devices, in this case, using the novel CuSbS2 absorber via a newly developed three‐stage self‐regulated growth process to control absorber purity and orientation. Photovoltaic performance of the absorber, using the typical substrate CuInxGa1 − xSe2 (CIGS) device architecture, is explored as a function of absorber quality and thickness using a variety of back contacts. This study yields CuSbS2 device prototypes with ~1% conversion efficiency, suggesting that the optimal CuSbS2 device fabrication parameters and contact selection criteria are quite different than for CIGS, despite the similarity of these two absorbers. The CuSbS2 device efficiency is at present limited by low short‐circuit current because of bulk recombination related to defects, and a small open‐circuit voltage because of a theoretically predicted cliff‐type conduction band offset between CuSbS2 and CdS. Overall, these results illustrate both the potential and limits of combinatorial methods to accelerate the development of thin film photovoltaic devices using novel absorbers. Copyright © 2016 John Wiley & Sons, Ltd.
STUDY ON FLAME HEIGHT OF MERGED FLAME FROM MULTIPLE FIRE SOURCES

A series of experiments to study merged flame from multiple fire sources was carried out. The porous 15-cm2 burner was used as a unit burner and propane was employed as a fuel. Many burners with various heat release rates were placed in a square configuration with various separation distances. Flame height was measured using video images and temperature distribution with height was measured using thermocouples. The numerical results from the Fire Dynamics Simulator (FDS) of the National Institute of Standards and Technology was compared with the experimental data, and the comparison results show that FDS correctly simulates the merged flame from multiple fire sources. In addition, an empirical model to estimate the merged flame height was developed considering the effect of separation distance. The validity of this model was confirmed from the comparison with the simulation results, and excellent agreement is found between the calculated merged flame height from the model and the numerical ones. To study the detailed structure of merged flame, 3 × 3 fire source configuration was taken as an example to quantitatively show oxygen mass fraction profiles and velocity fields, which were also given to indicate the formation mechanism of the merged flame.
A new route to graphene starting from heavily ozonized fullerenes: Part 2—oxidation in air

ABSTRACT Graphite oxide (GO) and heavily ozonized C60 and C70 fullerenes known as “fullerene ozopolymers” were studied by TGA-FTIR (Thermogravimetry coupled with FT-IR spectroscopy), DTG (Differential Thermogravimetry) and DTA (Differential Thermal Analysis) in air flow. It was found that GO burns at 70°C higher temperature than the fullerene ozopolymers. This different behavior toward the thermal oxidation of GO is due to the size of the oxidized and staked graphene layers which are expected to be significantly larger than those of the fullerene ozopolymers. Furthermore, the latter should necessarily have a buckybowl shaped structure which should favor their reactivity with oxygen.
About RC‐like contacts in deep level transient spectroscopy and Cu(In,Ga)Se2 solar cells

The low temperature Deep‐Level Transient Spectroscopy (DLTS) signal of two Cu(In, Ga)Se2 samples on glass with different buffer layers is subjected to a thorough study. A similar signal is observed in the DLTS and admittance spectra of many solar cells and is usually labeled as N1. The standard DLTS theory assumes the investigated device to be a Schottky or p–n diode with an ohmic back contact, and relates the spectral components to capture or emission of free carriers by defect levels in the structure. It is well‐known, though, that Cu(In, Ga)Se2 thin film solar cells deviate from this ideal structure. However, even for a device like this, where advanced numerical modeling is necessary to describe the equilibrium charge distribution as a function of applied bias, a change in the free carrier concentration at a certain position of the device as a result of capture or emission by deep defect levels should satisfy the detailed balance equation. The DLTS experiment performed with conventional and complemental settings for the reverse and pulse bias voltages (Vr < Vp < 0 and Vp < Vr < 0, respectively) exhibit characteristics that cannot be explained using free carrier transfer between deep levels—in the bulk or at an interface—and the conduction (electrons) or valence (holes) band of a semiconductor as a model. On the other hand, we show that for the solar cells studied here, the N1 signals follow the behavior predicted for a non‐ohmic RC‐like contact, as established in our recent paper (J. Lauwaert et al. Journal of Applied Physics 2011) closely. Copyright © 2012 John Wiley & Sons, Ltd.
Comportamiento reproductivo de Physalaemus albonotatus (Steindachner, 1864) (ANURA: LEIUPERIDAE) en el nordeste argentino.

Fil: Schaefer, Eduardo Federico. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Nordeste. Centro de Ecologia Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecologia Aplicada del Litoral; Argentina