Miracle-dz/UniFAR-FTUs huggingface dataset:
Solubility of Squalene, Oleic Acid, Soya Oil, and Deep Sea Shark Liver Oil in Subcritical R134a from 303 to 353 K

The solubilities of lipids typically found in marine oils and seed oil refining byproducts were measured in subcritical R134a to determine whether R134a could be a viable, low-pressure alternative to supercritical CO2. The solubilities of squalene, oleic acid, soya oil, and deep sea shark liver oil in subcritical R134a were measured in a countercurrent packed column apparatus over the temperature range 303 to 353 K at 60 bar. Solubility measurements were also made over the pressure range 40−200 bar at 343 K for shark liver oil and oleic acid. The solubilities of all solutes in R134a were low, ranging from 0.8 to 10 g of solute per kg of solvent. The solubilities increased almost linearly with increasing temperature at fixed pressure and increased logarithmically with increasing pressure at fixed temperature. The measurements show that R134a can be used as an alternative to supercritical CO2. The strong temperature dependence of the solubility allows for two-stage fractionation of extracts. Solubility as a.
Analysis and design of a pulsed-light emitter for time-resolved fluoroimmunoassay

This paper deals with a pulsed-light emitter, which is a perfect source for time-resolved fluorescence immunoassay (TRFIA). Using a time-controlled circuit and an energy-controlled circuit, the set can emit high frequency pulsed-light. The frequency is 1000Hz. The wavelength range is from 280nm to 280nm, the pulse width is 54μs, and the output power of ultraviolet radiation is more than 200μw.
Self-energy in surface electron spectroscopy: I. Plasmons on a free-electron-material surface

On the basis of a quantum approach, the formula for the complex self-energy, and hence also that for the energy-loss cross-section, are derived for fast electrons penetrating through the surface from the interior of a solid. Both the angular and depth dependence are included in the expression. Use of a Drude-Lindhard model bulk dielectric function for describing a bulk plasmon excitation in a free-electron-like material has yielded an analytical expression for the surface dielectric function which satisfies surface sum rules. The calculated imaginary and real parts of the electron self-energy for Si have indicated, in detail, the excitation processes of the surface plasmon and the bulk plasmon for an electron passing through the surface, with the dependency on electron energy and take-off angle. This approach provides quantitatively the electron inelastic scattering cross-section in the surface region for use in surface electron spectroscopy.
Avaliação do teor de antocianinas em polpa de acerola congelada proveniente de frutos de 12 diferentes aceroleiras (Malpighia emarginata D.C.)

The great variability of the Brazilian acerola orchards results in fruits with yellow to red color, producing a light colored acerola pulp which is not as appealing as full red pulp. Anthocyanins are unstable pigments, responsible for red color in mature acerola. In order to examine some pigment degradation in frozen pulp acerola, it was installed a randomized experiment. Pulps obtained from 12 accesses (plants) of Germoplasm Active Bank from Federal Rural University of Pernambuco (UFRPE) were stored (-18°C) for 6 months. Total anthocyanins were determined in randomized samples (30g) collected at the beginning and end of the experiment, using spectrophotometer method. Great variation on the total anthocyanin content was observed in the studied accesses. At time zero of storage the lowest and highest level of this phytochemical were 3.79 mg and 59.74 mg 100 g-1 of pulp, respectively. After 6 months of storage, a reduction of 3.4 % to 23.6 % on content of these pigments were shown. The storage at -18oC for six months reduced the anthocyanin content. The anthocyanin pigments of accesses 08 and 13 were the most stable during frozen storage.
Experiences of positive career change among female breast cancer survivors: An Interpretative Phenomenological Analysis

Abstract This article reports on women’s experiences of career change following a breast cancer diagnosis and explores whether their illness represents the driving force to pursue previously unfulfilled career ambitions. The participants were four women who had been diagnosed with breast cancer and had changed career direction after their treatment. Data were conducted through in-depth interviews and were analyzed using Interpretative Phenomenological Analysis (IPA). Four themes prominent throughout each women’s narrative were identified: (i) a pre-diagnosis, unhappiness at work, (ii) a sense of stepping off the treadmill, (iii) a sharp focus upon their “self,” and subsequently (iv) a flourishing “work-life. ” Further research is needed to investigate how common these findings are among women with breast cancer.
3-Hydroxy-4-((phenylimino)methyl)phenyl Myristate

Abstract: A new Schiff base ester 3-hydroxy-4-[(phenylimino)methyl]phenyl myristate was synthesized and its IR, 1 H NMR, 13 C NMR and MS spectroscopic data are presented. Keywords: 3-hydroxy-4-[(phenylimino)methyl]phenyl myristate; Schiff base; alkyl chain Schiff bases have received a considerable amount of attention from many researchers owing to their importance in exhibiting thermochromism and photochromism [1–4]. Aromatic Schiff bases possessing long alkyl chain have received much attention due to their possibility to exhibit liquid crystalline properties such as smectic and nematic phases [5–9]. Synthesis 4-Formyl-3-hydroxyphenyl tetradecanoate was previously prepared via Steglich esterification [10]. In a round-bottom flask, a mixture of the 4-formyl-3-hydroxyphenyl tetradecanoate (1.74 g, 5.0 mmol), aniline (0.47 g, 5.0 mmol) and absolute ethanol (50 mL) was refluxed with stirring for three hours. The reaction mixture was filtered and the solvent removed from the filtrate by evaporation. Recrystallization from absolute ethanol gave the title compound as yellow solid (1.14 g, 54%).
Fully differential low noise amplifier for MPI/MPS

Magnetic particle imaging (MPI) is a novel tomographic imaging modality, which uses static and dynamic magnetic fields to measure the magnetic response generated by superparamagnetic iron oxide nanoparticles (SPIONs). For the characterization of the SPIONs magnetic particle spectroscopy (MPS) is used. In the current research, a low noise amplifier (LNA) suitable for MPI and MPS is presented. LNAs play a significant role in the receive chain of MPI and MPS systems by amplifying the signals from the nanoparticles while keeping the noise induced through its own circuitry minimal. The LNA is based on a fully differential amplifier (FDA) in a summing configuration to reduce noise. The input voltage noise of the prototyped LNA with a receive coil and a 50 Ω resistance in a bandwidth of 200-600 kHz is 300 pV/√Hz (NF = 14.05) and 1.76 nV/√Hz (NF = 11.93) respectively. Int. J. Mag. Part. Imag. 6(2), Suppl. 1, 2020, Article ID: 2009006, DOI: 10.18416/IJMPI.2020. 2009006
Controlling The Mobility Of Oligonucleotides In The Nanochannels Of Mesoporous Silica

Oligonucleotides used in gene therapy and silencing are fragile compounds that degrade easily in biological environments. Porous biocompatible carrier particles may provide a useful strategy to deliver these therapeutics to their target sites. Development of appropriate delivery vehicles, however, requires a better understanding of the oligonucleotide‐host interactions and the oligonucleotide dynamics inside carrier particles. We investigated template‐free SBA‐15 type mesoporous silica particles and report their loading characteristics with siRNA depending on the surface functionalization of their porous network. We show that the siRNA uptake capability of the particles can be controlled by the composition of the functional groups. Fluorescence recovery after photobleaching measurements revealed size‐dependent mobility of siRNA and double‐stranded DNA oligonucleotides within the functionalized silica particles and provided evidence for the stability of the oligonucleotides inside the pores. Hence, our study demonstrates the potential of mesoporous silica particles as a means for alternative gene delivery in nanomedicine.
Photoluminescence from Sol−Gel Organic/Inorganic Hybrid Gels Obtained through Carboxylic Acid Solvolysis

Hybrid organic/inorganic sol−gel materials have been synthesized by carboxylic acid solvolysis of (aminopropyl)triethoxysilane or ureasil precursors. The hybrid nature of these gels is expanded with the introduction of silica esters. A main feature of the ensuing materials is the formation of hybrid organic/inorganic nanoclusters, which are founded on silica backbone but they are facilitated and assisted also by forces arising from hydrophilic/hydrophobic balance and hydrogen-bonding interactions. The silicious domains of these clusters with attached functional groups, for example, amino groups, are luminescence centers. Some precursor compounds bearing amino groups without silicious groups but with a tendency to form clusters in solution also emit luminescence. Luminescence is the result of electron−hole recombination on delocalized states so that emission wavelength depends on excitation wavelength. Luminescence can thus be emitted in almost the entire visible spectrum and it can be tuned by choosing ex.
The Fate and Impact of Pharmaceuticals and Personal Care Products in Agricultural Soils Irrigated With Reclaimed Water

Reclaimed water is an important source of irrigation and is widely used on agricultural soils throughout the world, particularly in arid and semi-arid regions. However, concerns about the potential risks of this practice are rapidly increasing because reclaimed water may contain various organic pollutants such as pharmaceuticals and personal care products (PPCPs). Trace levels of PPCPs have been found in fields irrigated with reclaimed water, and continual infusion, along with bioaccumulation properties, may result in significant bio-uptake and PPCP contamination in agricultural soils. This review attempts to summarize the literature concerning the fate and behavior of PPCPs in agricultural soils, as well as their adverse effects on soil organisms (including microorganisms and fauna), crops, and even humans via dietary consumption. Strategies and potential technologies for degrading or removing PPCPs from soils are addressed, along with the irrigation strategies and agricultural practices for minimizing PPCP transfer to crops and groundwater. Based on this review, we conclude that the agricultural risks of PPCPs associated with reclaimed water irrigation could be controlled under certain agro-ecological conditions. We suggest developing agro-ecosystem-specific practices and regulations for reclaimed water irrigation on the basis of a systematic assessment and modeling analysis of the fate, transport, accumulation, and transformation of PPCPs in soil–crop systems.
Structural Changes of Humic Acids During Olive Mill Pomace Composting

The aim of this work was to characterize the humic acids during composting using both chemical and spectroscopic analytical methods. Humic acids (HA) were extracted from olive mill pomace (OMP) after 5, 10, 21, 32, 48, 60, 84, 95, 109 and 153 days of composting and their elemental composition, functional groups, molecular weight, 13C CP-MAS NMR and FTIR spectra were determined. Elemental composition of HA showed a decrease of carbon content from 56.8% to 47.1% and an increase of oxygen content from 32.7 % to 43.3%. A slight increase of carboxylic groups was observed with no variation of phenolic groups. The molecular weight of HA determined by gel chromatography showed that after 95 days of composting the molecular weight of about 40% of the polymers was greater than 102 KDalton. The 13C CPMAS NMR and FTIR spectra of HA showed compositional and structural changes indicating a slight increase of polysaccharides and aromatic groups and a decrease of long aliphatic chains during the composting.
Developing Public Sector Growth through E-Government and Democracy A Detailed Analysis

Public sector growth refers to the growth and development in the government-controlled departments and establishments. The industries and different sectors of a country that come under the influence of government come under public sector. E-government is actually the employment of innovative techniques and practices while performing several operations for the facilitation of citizens by the government. The core motive of using e-government practices to ensure the efficiency and effectiveness of those operations that are being performed for the public. Democracy refers to the right of citizens of a particular country in order to choose the leaders or government of their own choice based on the decision of majority. This study investigates promoting public sector growth through E-government adoption and democracy in ASEAN countries. Transparency rate and population factor are two important control variables which are induced in this research study. In the literature review section, previous related research studies have been indicated. The time-series data has been collected about concerned variables regarding ASEAN countries. The analyses portion includes unit root IPS, Pedroni cointegration and FMOLS regression and concluded that the hypotheses proposed by the researcher are accepted along with some share of impact of control variables. The researcher concluded that E-government and democracy positively impact public sector growth of ASEAN countries. At the last of this study, implications, limitations and future recommendations are also present. The implications include various theoretical, practical and policy making contexts. The future recommendations can be used by the future researchers so that they can increase the scope of their researches.
Role of Education and Financial Capacity on E-Government Adoption

E-government is an emerging concept that refers to the use of new technology for the provision of services to the citizens resulting in increase in transparency and efficiency. Financial capacity of a country refers to the ability of a country or government to manage the expenses and finances of the country and to make rational decisions related to finance. Level of education means the literacy rate or the number of knowledgeable people in the country. The basic plan of this study is to check the impact of level of education and financial capacity on the e-government adoption by people in the presence of two control variables, per capita income and GDP growth. In order to conduct research, data has been collected from ASEAN countries for 28 years from most reliable resources. In the research process, several techniques and tests are used such as IPS unit root test, Pedroni cointegration test, FMOLS coefficient estimation test, Granger casualty test etc. As the consequence of these tests, the impact of level of education and financial capacity well as the control variable, GDP growth on happiness level of people are accepted. However, the impact of a control variable, per capita income has been rejected. This study has several benefits and implications related to theoretical, practical and policy making benefits in context of increase in e-government adoption.
Comparison of German and Swiss Rainfall Simulators ‐ Influence of Plot Dimensions

The construction and operation of a rainfall simulator becomes easier with decreasing plot size. We studied the effect of plot size on the erosion dynamics and whether it is preferable to decrease plot width or plot length. 22 simulated rainfalls were carried out with Veejet 80 100 simulators and on plots of considerably differing dimensions. The plot width has to cover a representative width of the field. With the common 3 m wide farm machinery, a plot width of at least 1.5 m containing one wheel track is necessary. Narrower plots are not suited for erosion experiments on agricultural land. The influence of plot length can be described with the LS factor of the USLE down to a plot length of 4.5 m and with the RUSLE for interrill plots (0.75 m). With decreasing plot size, the runoff started later (up to 20 min) and the afterflow ended earlier. This is not only a result of the plot length (r = 0.78), but mainly of the plot size (r = 0.92). The large time lag on small plots complicates the interpretation of the results. We recommend to disregard the rain erosivity during the time lag for the determination of USLE parameters. This is in accordance with the procedure of Wischmeier & Mannering (1969). Plot sizes have to be selected particularly carefully if the fate of soluble substances is to be studied. Vergleich deutscher und schweizer Regensimulatoren - Einflus der Parzellenabmessungen Mil abnehmender Parzellengrose vereinfacht sich die Konstruktion und der Betrieb von Regensimulatoren. Es wurde untersucht, ob dadurch die Erosionsdynamik verandert wird und ob es vorteilhafter ist, die Parzellenlange oder -breite zu verkleinern. Dazu wurden 22 Beregnungen mit Veejet-80100-Regnern mit unterschiedlichen Parzellenabmessungen ausgewertet. Die Parzellenbreite mus einen reprasentativen Ausschnitt des Feldes erfassen. Bei 3 m breiten landwirtschaftlichen Maschinen ist dazu mindestens eine Parzellenbreite von 1.5 m erforderlich, in der eine Reifenspur liegt. Schmalere Parzellen sind zur Untersuchung landwirtschaftlicher Flachen ungeeignet. Der Einflus der Parzellenlange konnte durch den LS-Faktor der ABAG fur Parzellen von mindestens 4.5 m Lange beschrieben werden. Fur kleine Interrill-Parzellen (0.75 m) war der hohere LS-Faktor der RUSLE fur kleine Hanglangen geeignet. Mit abnehmender Parzellengrose beginnt der Abflus bis zu 20 min spater und der Nachflus endet fruher. Dies ist nicht allein auf die Parzellenlange zuruckzufuhren (r = 0.78) sondern vor allem auf die Parzellenflache (r = 0.92). Die grose Verzogerung des Abflusses auf kleinen Parzellen erschwert die Interpretation. Es wird empfohlen, die Regenerosivitat bis zum Abflusbeginn nicht zu berucksichtigen, wenn Parameter der ABAG bestimmt werden sollen. Dies entspricht in etwa dem Vorgehen von Wischmeier & Mannering (1969). Die Parzellengrose mus besonders sorgfaltig gewahlt werden, wenn im Abflus geloste Substanzen untersucht werden sollen.
A comparative analysis of the quality of Community Police Forums in local Cato Manor & Glenwood communities, South Africa

Abstract Policing multiracial communities represents an important and contemporary challenge for police, since culturally diversified local environments raise many social and organisational issues regarding community relationships, problem-solving and ensuring safety and security. Furthermore, the quality of community policing in local communities is an important research topic in the fields of criminological and police studies and requires special competencies. The estimation of the quality of police work gives an insight into which extent the strategic goals of police organisations are met and what the next steps towards improving their efficiency and legitimacy are. The purpose of this paper is to compare the results of Community Policing Forums (CPFs) in Cato Manor Township and Glenwood Suburb, Durban, South Africa. This was done by exploring the quality of Community Policing (CP), especially CPFs from different perspectives, which included community leaders, business and general community. A qualitative research approach was adopted, to explore such perspectives in the study areas. The findings collected through semi-structured interviews and focus group discussions with the South African Police Services personnel, Community Police Forums` members and general community members discovered differences between perceptions of police work and CPFs between the township area and the suburban area. Overall, the findings indicate that members of the suburban community perceive problems regarding disorder and crime as more severe than the township one, while members of the township setting express more satisfaction with police and CPF work in general.
Poly(styrenesulfonate)-Poly(diallyldimethylammonium) Mixtures: Toward the Understanding of Polyelectrolyte Complexes and Multilayers via Atomistic Simulations

Explicit solvent all-atom molecular dynamics simulations of mixtures of poly(styrenesulfonate)(PSS) and poly(diallyldimethylammonium) (PDADMA) polyelectrolytes at various salt (NaCl) concentrations are performed. We characterize the formed polyelectrolyte complexes (PECs) and relate the observed physical properties of PSS−PDADMA PECs to the properties found in polyelectrolyte multilayers (PEMs) made of the same compositions. Our results reveal a change in the way charges are compensated upon the addition of salt, namely from an intrinsic mechanism (polyanions pair with polycations) toward an extrinsic one (polyions pair with salt ions). The probability of the intrinsic compensating mechanism decreases from about 90% to about 60% when the salt concentration increases from 0.168 to 1 mol/L. The interaction energies of the ion-pairing follow the order of Na−Cl > PSS−Na > PDADMA−Cl ≅ PSS−PDADMA. Furthermore, we investigate thoroughly the water distribution and study the hydration mechanisms in our system. Wat.
Synthesis and characterization of various MgO and related systems

Various magnesium oxide catalysts have been prepared by thermal treatment of two different precursors: Mg(OH)2 and Mg5(OH)2(CO3)4. An additional system based on MgO and doped with B2O3 was also prepared. The textural and acid–base properties of the catalysts were investigated. The synthesized solids were characterized from adsorption isotherms, X-ray diffraction (XRD), 1H MAS NMR, diffuse reflectance IR Fourier transform spectroscopy (DRIFT) and temperature-programmed desorption–mass spectrometry (TPD–MS) of adsorbed probe molecules (pyridine, 2,6-dimethylpyridine and carbon dioxide). The surface properties of the solids were found to be strongly influenced by the magnesium oxide preparation conditions (viz. the precursor and calcination method used). Use of Mg(OH)2 as the precursor and in vacua calcination provided highly basic solids (those with the highest proportions of strong basic sites). Various types of Lewis-acid sites were observed in the catalysts prepared in vacuo, probably as the result of the presence of Mg2+ cations of low coordination after the calcination.
Structures and vibrational frequencies of CO adlayers on Rh(111) surface

Density functional theory calculations within the generalized gradient approximation (GGA) have been carried out to study the structural and vibrational properties of carbon monoxide adsorption on Rh(111) surface. The optimized geometries, adsorption energies and vibrational frequencies have been obtained and the preferred binding sites have been determined. The results show that at low coverage CO prefers to adsorb at top site and at high coverage one molecule occupies top site while the two other molecules occupy hcp and fcc hollow sites respectively. The investigation of the vibrational properties of CO chemisorption on Rh(111) shows that the top C-O stretching frequency increases along with the increase of the coverage. The site assignments, optimized geometries and calculated vibrational frequencies are found to be in good agreement with the experimental results.