Miracle-dz/UniFAR-FTUs huggingface dataset:
Integrating and Sustaining Directed and Self-Directed Learning Through MS Teams and OneNote: Using Microsoft Teams and OneNote to Facilitate Communication, Assignments, and Portfolio Management

This webinar looks at the practical use of Microsoft applications Teams and OneNote in the EAP classroom. Two teachers from the University of Glasgow, Neil Allison and Jolanta Hudson, share their experience with using and implementing the applications in their classrooms and discuss how integration of these technologies can facilitate learning and effective communication, providing an excellent platform and tools to create and manage assignments and portfolios remotely. They include how the Coronavirus influenced their teaching and the choices they had to make when selecting appropriate technologies and activities for their students. Presentation 1: Neil Allison Title: OneNote – a sustainable tool for student portfolios and more if integrated with MS Teams. Presentation 2: Jolanta Hudson Using MS Teams to facilitate learning with assignment and feedback.
Dependence of Real Refractive Indices on O:C, H:C and Mass Fragments of Secondary Organic Aerosol Generated from Ozonolysis and Photooxidation of Limonene and α-Pinene

The refractive index is a fundamental property controlling aerosol optical properties. Secondary organic aerosols have variable refractive indices, presumably reflecting variations in their chemical composition. Here, we investigate the real refractive indices (mr) and chemical composition of secondary organic aerosols (SOA) generated from the oxidation of α-pinene and limonene with ozone and NOx/sunlight at different HC/NOx ratios. Refractive indices were retrieved from polar nephelometer measurements using parallel and perpendicular polarized 532-nm light. Particle chemical composition was monitored with a high-resolution time-of-flight aerosol mass spectrometer (HR-Tof-AMS). For photochemically generated SOA, the values of refractive indices are consistent with prior results, and ranged from about 1.34 to 1.55 for limonene and from 1.44 to 1.47 for α-pinene, generally increasing as the particles grew. While AMS fragments are strongly correlated to the refractive index for each type of SOA, the relationships are in most cases quite different for different SOA types. Consistent with its wide range of refractive index, limonene SOA shows larger variations compared to α-pinene SOA for most parameters measured with the AMS, including H:C, O:C, f43 (m/z 43/organic), fC4H7 +, and others. Refractive indices for α-pinene ozonolysis SOA also fell in narrow ranges; 1.43–1.45 and 1.46–1.53 for particles generated at 19–22 and 23–29°C, respectively, with corresponding small changes of f43 and H:C ratio and other parameters. Overall, H:C ratio, m/z 43 and 55 (C2H3O+, C4H7 +) were the best correlated with refractive index for all aerosol types investigated. The relationships between mr and most fragments support the notion that increasing condensation of less oxygenated semivolatile species (with a possible role for a concomitant decrease in low refractive index water) is responsible for the increasing mrs observed as the experiments progress. However, the possibility that oligomerization reactions play a role cannot be ruled out.
Characterizing the performance of alternative evaporative cooling pad media in thermal environmental control applications

Abstract This paper outlines the test procedure and describes how the alternative pad performance is affected by pad thickness and pad materials in the thermal environmental control applications. Many experimental pads were tested including one made of nonwoven fabric perforated pad and one made of coir fiber material. A wind tunnel experiment was performed to obtain equations for heat and mass transfer coefficients for the evaporative process through various thickness of alternative pad media. Heat and mass transfer coefficients are nondimensionalized and curve fitted to yield the working equations: (1) coir fiber pad: hH / hM =, 0.32paCPaLe,2/3 (Les /Le,)1/4, and (2) nonwoven fabric pad: hH / hM , = 1.899paCPaLe,2/3 (Les / Le,)1/4; where hH , is heat transfer coefficient, hM , is mass transfer coefficient, pa , is air density, Cpa , is specific heat of air, Le, is Lewis number, and Les ,, is Lewis number at water temperature. A determination for cooling efficiency in a wind tunnel system is also develop.
The Effect of Groundwater Aeration on PCE Natural Attenuation Patterns

Attempts to remediate ground water contaminated with tetrachloroethylene at a Superfund site in Minnesota included the installation of a vacuum vaporizer well. Prior to the remedial system installation, the contaminant source half-life was approximately 0.3 years. Aquifer aeration by the vacuum vaporizer well unintentionally disrupted the ambient natural attenuation rate. Although the overall plume size did not increase, concentrations of the anaerobic breakdown products of tetrachloroethylene—trichloroethylene, cis-dichloroethylene, and vinyl chloride—all increased in downgradient monitoring wells after startup of the vacuum vaporizer well. At a well 360 feet downgradient of the source, trichloroethylene increased from concentrations below 10 µg/L to over 35 µg/L, while cis-dichloroethylene concentrations increased from 70 µg/L to 370 µg/L. Vinyl chloride, which was below detection limits at this location prior to operation of the vacuum vaporizor well, increased in concentration to 83 µg/L. Concentrations of these contaminants returned to pre-sparging levels after deactivation of the system, indicating that existing anaerobic natural attenuation processes play an important role in the remediation of ground water at this site. Investigations should routinely assess the role of natural attenuation in remediation before implementing engineered remedies that may disrupt existing beneficial attenuation processes.
FT‐Raman and FT‐IR spectral and quantum chemical studies on some flavonoid derivatives: Baicalein and Naringenin

In this study, the experimental and theoretical results on the molecular structures of some flavonoid derivatives (Baicalein and Naringenin) are presented. The FT-IR and FT-Raman spectra of the compounds have been recorded together for the first time between 4000–400 cm−1 and 3500–5 cm−1 regions, respectively. The molecular geometry and vibrational wavenumbers of the compounds have been also calculated in their ground states by using ab initio HF and DFT/B3LYP functional with 6-31G(d,p) basis set used in calculations. The calculations were utilized to the C1 symmetries of the molecules. All calculations were performed with Gaussian 98 software. The obtained vibrational wavenumbers and optimized geometric parameters were seen to be in good agreement with the experimental data. Scale factors have been used in order to compare how the calculated and experimental data are in agreement. Theoretical infrared intensities were also reported. Copyright © 2008 John Wiley & Sons, Ltd.
The Response Surface Methodology: An Application to Optimize Dehydration Operations of Selected Agricultural Crops

Abstract Optimization is an essential tool in food engineering for the efficient operation of processing systems and unit processes yielding a highly acceptable product. The response surface methodology approach is a statistical technique that was used by authors in most studies involving optimization. The same methodology was used to optimize several unit operations in food process engineering using fractional factorial experimental designs. The processing operations included: drying, juice extraction and compaction with parameters affecting the process as independent variables while the responses (to the parameters), designated as dependent variables. An analysis of variance (ANOVA) was usually performed to determine which of the parameters significantly affected the independent variables. Second order polynomial (SOP) models as functions of the independent variables generated response surface and contour plots. Optimum regions were derived by superimposition of the contour plots based on industry standards. Separate validation experiments were conducted at optimum conditions to verify predictions and adequacy of the SOP models. Optimization studies in hot air-drying and vacuum dehydration are presented in this paper. Optimum conditions of 68°C and 10 KPa for 1.6 mm strips were established for vacuum dehydration of carrots while a 70°C drying temperature for the hot air-drying of 2 mm garlic slices.
Effect of different application rates of organic fertilizer on soil enzyme activity and microbial population

Abstract After cultivating 24 crops of vegetables for three consecutive years in a greenhouse, the effects of different application rates of compost (Rate 1, 270 kg N ha−1 y−1; Rate 2, 540 kg N ha−1 y−1; Rate 3, 810 kg N ha−1 y−1; Rate 4, 1,080 kg N ha−1 y−1) were compared with the effects of chemical fertilizer (CF) and no application of fertilizer treatments (CK) for some selected soil chemical properties, microbial populations and soil enzyme activities (dehydrogenase, cellulase, β-glucosidase, protease, urease, arysulphatase, and acid and alkaline phosphatases). The results show that the pH, electrical conductivity, concentrations of total nitrogen (N) and the organic matter received from compost treatment were generally higher than those received through CF treatment. The soil microbial biomass, populations of bacteria, fungi and actinomycetes, as well as soil enzyme activities increased significantly in the compost-treated soils compared with the CF-treated soil. In most instances, no significant increase was observed in the enzymatic activities studied for compost applications higher than a Rate 2 treatment. However, all enzymatic activities examined showed significant linear correlations with the organic matter contents of the soils. The vegetable yield reached its highest level at the Rate 2 treatment and declined or leveled off in the higher treatments, implying that a high application rate of compost cannot further increase the crop yield after the soil fertility has been established. High organic matter content in the soil was found to alleviate the adverse effect of soluble salts on vegetable growth. In conclusion, an application rate of compost at Rate 2, 540 kg N ha−1 y−1, is adequate on the basis of vegetable yields and soil chemical, biochemical and enzymatic properties in greenhouse cultivation under subtropical climatic conditions.
Volatile leaf oils of some south‐western and southern Australian species of the genus Eucalyptus (series I). Part XVI: Subgenus Symphyomyrtus, Section Bisectaria, Series Cneorifoliae, Series Porantherae and Series Falcatae

The volatile leaf oils of Eucalyptus indurata Brooker & Hopper, E. kessellii Maiden & Blakely, E. goniantha Turcz. subsp. goniantha, E. semiglobosa (Brooker) L. A. S. Johnson & K. D. Hill, E. ornata Crisp, E. falcata Turcz. , E. decipiens Endl. , E. micranthera F. Muell. ex. Benth. , E. angustissimaF. Muell. , E. cneorifolia DC. , E. argyphea L. A. S. Johnson & K. D. Hill, E. balanopelex L. A. S. Johnson & K. D. Hill, E. rigidula Maiden, E. foecunda Schauer, E. latens Brooker, E. leptophylla F. Muell. ex. Miq. , E. kumarlensis Brooker, E. perangusta Brooker, E. formanii Gardner, E. uncinata Turcz. , E. albida Maiden & Blakely and E. dissimulata Brooker, isolated by vacuum distillation, were analysed by GC and by GC–MS. Many species contained α-pinene (0–43.5%), β-pinene (0–5.3%), 1,8-cineole (0.3–66.4%), p-cymene (0.2–22.6%), pinocarvone (0–8.4%), β-caryophyllene (0–11.6%), aromadendrene (0–19.4%), trans-pinocarveol (0.2–28.6%) and bicyclogermacrene (0–30.3%) as principal leaf oil components. All species contained torquatone (0.09–6.2%); lateriticone (1-isovaleryl-4-methoxy-3,5,5-trimethylcyclohex-3-en-2,6-dione) (0.1–0.5%) was found in E. indurata, E. goniantha and E. perangusta. © 1997 John Wiley & Sons, Ltd.
A linear scaling method for Hartree–Fock exchange calculations of large molecules

We introduce the near‐field exchange method for calculating Hartree–Fock exchange in time scaling near‐linearly with system size. Benchmarks on polyglycine chains, water clusters, and diamond pieces show that microhartree accuracy and substantial speedups (up to 10×) over traditional calculations can be obtained for electrically insulating systems larger than 300 atoms.
Quantitative imaging of element spatial distribution in the brain section of a mouse model of Alzheimer's disease using synchrotron radiation X-ray fluorescence analysis

A method for quantitative imaging of trace elements in sections of bio-tissues using synchrotron radiation microbeam X-ray fluorescence (SR-μXRF) analysis was developed. The Compton scattering in the SR-μXRF spectrum was utilized as an internal standard to compensate the differences in thickness and density of thin bio-tissue sections. The ratios of element sensitivities to Compton scattering peak obtained from two matrix-matched standard reference materials were used for the calculation of the concentrations of metals in a brain section. The concentrations of Ca, Fe, Cu and Zn in the standard reference material (GBW 08551, pig liver) determined by this method were in good agreement with the certified values. The detection limits of Ca, Fe, Cu and Zn at 2 s detection were 1.15, 0.53, 0.21, and 0.20 μg g−1, respectively. The method has been successfully applied in accurate and precise imaging of the element variations in the brain section of a transgenic mouse model of Alzheimer's disease.
Effect of Cadmium Exposure on Serum Amylase Activity in Cadmium Electroplating Workers

Objective. The effect of cadmium exposure on serum amylase activity has been monitored in cadmium plating workers of Bangalore City (India). Methods. Fifty subjects using cadmium during electroplating formed the study group. An equal number of age–sex matched subjects working in administrative sections formed the control group. Urinary cadmium levels were determined by using a flameless atomic absorption spectrophotometer. Serum amylase activity was determined by using spectrophotometric method. Results. A significant increase of urine cadmium and serum amylase activity was noted in the subjects of the study group as compared with the subjects in the control group. The level of serum amylase activity was positively and significantly associated with cadmium levels in urine. Multiple regression analysis was used to assess the effect of cadmium exposure on serum amylase activity. The analysis showed that the study subjects who had urine cadmium levels greater than 5-μg/ g of creatinine and cadmium exposure we.
Conical intersections and double excitations in time-dependent density functional theory

There is a clear need for computationally inexpensive electronic structure theory methods which can model excited state potential energy surfaces. Time-dependent density functional theory (TDDFT) has emerged as one of the most promising contenders in this context. Many previous tests have concentrated on vertical excitation energies, which can be compared to experimental absorption maxima. Here, we focus attention on more global aspects of the resulting potential energy surfaces, especially conical intersections which play a key role in photochemical mechanisms. We introduce a new method for minimal energy conical intersection (MECI) searches which does not require knowledge of the non-adiabatic coupling vector. Using this new method, we compute MECI geometries with multi-state complete active space perturbation theory (MS-CASPT2) and TDDFT. We show that TDDFT in the linear response and adiabatic approximations can predict MECI geometries and energetics quite accurately, but that there are a number of qualitative deficiencies which need to be addressed before TDDFT can be used routinely in photochemical problems. †Dedicated to Professor M. A. Robb on the occasion of his 60th birthday.
Surface characterization and thermodynamics of adsorption of methylene chloride on activated carbons

Abstract The surface characterization of acidic groups and thermodynamics of the adsorption of hazardous methylene chloride (METH) on the two commercial activated carbons BPL (made from bituminous coal) and PCB (made from coconut shell), respectively, were investigated. The surface acidic functional groups (carboxylic, carbonyl or lactone, and phenolic) were examined by titration method and compared with those by other methods. The Langmuir equation was found to well represent the measured adsorption isotherms. It was also found that carbon PCB has an adsorption capacity with hydrophlic METH higher than carbon BPL as indicated by the lesser amount of acidic groups as well as by the larger value of the micropore volume with 0.41 vs. 0.29 cm3/g. The adsorption equilibrium is influenced not only by the physical structure but also by the chemical properties of carbon surface. The results of thermodynamic properties of adsorption support that the process under consideration is spontaneous and favorable.
Spin-lattice relaxation of conduction electrons in silicon

The width of the spin resonance of conduction electrons in n-type silicon, which is related to the spin-lattice relaxation time, has been measured at microwave frequencies, between helium and room temperature. There are two temperature regions of interest: (i) above about 50 °K scattering by lattice vibrations is the dominant relaxation mechanism, and the results are compared with existing theories due to Elliott and Yafet, and (ii) at lower temperatures the results are considered in the light of existing theories of scattering from ionized donor impurities.
Phase Behavior of Blends of Poly(ϵ‐Caprolactone) and a Modified Montmorillonite‐Poly(ϵ‐Caprolactone) Nanocomposite

Blends between high‐molecular weight poly(ϵ‐caprolactone) (PCL) and an intercalated nanocomposite of poly(ϵ‐caprolactone)‐organophilic montmorillonite (OMONT), containing 30% by weight of the nanofiller (NPCL30) have been investigated. Such blends have been shown to have much improved mechanical properties with respect to the parent polymer. The detailed phase behavior, crystallization kinetics, and morphology of neat PCL and of blends containing 2, 9, and 15% by weight of OMONT have been studied by using differential scanning calorimetry (DSC). The thermal properties and the overall crystallization rate of pure PCL are strongly influenced by the presence of the montmorillonite nanoparticles. The study of the solid‐state dynamic‐mechanical properties revealed an enhancement of the storage modulus in particular above Tg and upon increasing the clay content. The enhancement of the modulus can be attributed to confined orientation of the polymer chains among the silicate galleries (intercalation). This is confirmed by the appearance in the sample with the highest clay content, of a second Tg peak at higher temperature indicative of a less mobile amorphous fraction.
Mexican Queso Chihuahua: rheology of fresh cheese†

Rheological properties of fresh Queso Chihuahua made from raw milk (RM) or pasteurized milk (PM) were characterized using texture profile, torsion and small amplitude oscillatory shear analyses. Although the rheological properties varied significantly among the different brands with overlapping ranges for the individual RM and PM cheese brands, overall the PM cheeses were harder, chewier and more cohesive but had lower viscoelastic values than the RM cheeses. Establishing the rheological properties of Mexican Queso Chihuahua increases our understanding of the quality traits of Hispanic-style cheeses and provides a foundation for maintaining the traditional texture of the cheese.
PHYSICAL ACTIVITY OF ADULTS DURING GREEK TRADITIONAL DANCE AND TENNIS SESSIONS

Physical Activity (PA) is connected with many health benefits and leads to a better quality of life. However, the modern way of life imposes such high levels of sedentary behaviours that physical inactivity is among the key risk factors for mortality. People’s participation in active recreational and/or exercise programmes that increase the levels of PA seems imperative if their health is to be enhanced. The aim of this study was to examine the potential differences between the PA offered by Greek Traditional Dance (GTD) and Tennis to adult participants. One hundred and two adults, aged 20 to 76 years, members of GTD (n=57) and Tennis (n=45) clubs, volunteered to participate in the study. The PA gathered during GTD or Tennis was recorded during two randomly selected sessions with Omron 720 pedometers. A multivariate analysis of variance (MANOVA) was computed on the participants’ total steps (TS) and aerobic steps (AS). Statistically significant differences were found between GTD and Tennis in TS (F 1,100 =35.18, p 10.000 steps/day) and the finding of previous studies reporting PA accumulated during various recreational/sport activities, it appears that both GTD and Tennis can significantly help people achieve satisfactory PA levels.
Evaluating Behavioral and Linguistic Changes During Drug Treatment for Depression Using Tweets in Spanish: Pairwise Comparison Study

Background Depressive disorders are the most common mental illnesses, and they constitute the leading cause of disability worldwide. Selective serotonin reuptake inhibitors (SSRIs) are the most commonly prescribed drugs for the treatment of depressive disorders. Some people share information about their experiences with antidepressants on social media platforms such as Twitter. Analysis of the messages posted by Twitter users under SSRI treatment can yield useful information on how these antidepressants affect users’ behavior. Objective This study aims to compare the behavioral and linguistic characteristics of the tweets posted while users were likely to be under SSRI treatment, in comparison to the tweets posted by the same users when they were less likely to be taking this medication. Methods In the first step, the timelines of Twitter users mentioning SSRI antidepressants in their tweets were selected using a list of 128 generic and brand names of SSRIs. In the second step, two datasets of tweets were created, the in-treatment dataset (made up of the tweets posted throughout the 30 days after mentioning an SSRI) and the unknown-treatment dataset (made up of tweets posted more than 90 days before or more than 90 days after any tweet mentioning an SSRI). For each user, the changes in behavioral and linguistic features between the tweets classified in these two datasets were analyzed. 186 users and their timelines with 668,842 tweets were finally included in the study. Results The number of tweets generated per day by the users when they were in treatment was higher than it was when they were in the unknown-treatment period (P=.001). When the users were in treatment, the mean percentage of tweets posted during the daytime (from 8 AM to midnight) increased in comparison to the unknown-treatment period (P=.002). The number of characters and words per tweet was higher when the users were in treatment (P=.03 and P=.02, respectively). Regarding linguistic features, the percentage of pronouns that were first-person singular was higher when users were in treatment (P=.008). Conclusions Behavioral and linguistic changes have been detected when users with depression are taking antidepressant medication. These features can provide interesting insights for monitoring the evolution of this disease, as well as offering additional information related to treatment adherence. This information may be especially useful in patients who are receiving long-term treatments such as people suffering from depression.