294 research outputs found

    Will You Hire The Services of Professionals Who Completed Their Professional Preparation Completely Online?

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    More and more people are obtaining their credentials online every year. This number is likely to continue to grow for several years before it begins to level off. Research has shown there is some skepticism and bias among potential employers against potential employees who have earned their credentials in fully online settings. Such research is restricted to employers in organizations. However, a number of individuals and families do also hire or contract the services of various professionals who serve individuals and families. The purpose of this exploratory study is to determine if individuals will or will not contract the services of professionals who completed their professional preparation fully online

    Hydroxyapatite Catalyzed Cyclization of Aryl Enones: Solvent-Free Efficient Synthesis of Some 4-Aryl-5,6-Dihydro-6-(Substituted Phenyl)-4H-1,3-Oxazine-2-Amines

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    Some 4-aryl-5,6-dihydro-6-(substituted phenyl)-4H-1,3-oxazine- 2-amine derivatives including 4-(4-methyl-1-naphthyl)-5,6- dihydro-6-(substituted phenyl)-4H-1,3-oxazine-2-amines have been synthesised by hydroxyapatite catalyzed solvent-free cyclization of aryl chalcones and urea using microwave irradiation under solventfree condition. The yields of the oxazines were more than 85%. The synthesised oxazine amines have been characterized by their physical constants, analytical and spectroscopic data

    Synthesis, spectral studies and insect antifeedant activities of some 4-substituted 1-naphthacyl bromide and its esters

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    About nine 4-substituted 1-naphthacyl bromides and its esters have been synthesized by greener synthetic method using fly-ash catalyzed water mediated reaction.  These acyl bromides and esters have been characterized by their physical constants, Mass, IR and NMR spectral data.  These carbonyl frequencies(cm-1) of existed rotomers of these compounds have been assigned and correlated with Hammett substituent constants, F, R and Swain-Lupton’s parameters.  The insect antifeedant activities of the synthesized acyl bromide and esters have been evaluated using 4th instar larvae Achoea Janatha L

    Aqueous phase fly-ash catalyzed [4+2] Diels-Alder reaction of aryl enones and cyclopentadiene: Synthesis and insect antifeedant activities of aryl bicyclo [2.2.1] heptene-2-yl-methanones

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    A series containing ten aryl 3-(substituted phenyl) bicyclo [2.2.1] heptene-2-yl-methanone derivatives including 3- (substituted phenyl) bicyclo [2.2.1]hepten-2-yl-(pyren-1-yl)- methanones have been synthesized by aqueous phase fly-ash catalyzed [4+2] Diels-Alder cyclo addition reaction of cyclopentadiene and aryl chalcones. The yields of the methanones are more than 60%. The synthesized methanones are characterized by their physical constants and spectral data. The insect antifeedant activities of synthesized methanones have been studied using Dethler’s leaf-discs bioassay method

    Cheating in Online Courses: A Qualitative Study

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    The purpose of this study was to explore the ways students have cheated in online courses. Ten students who had either cheated in online courses or knew of others who had cheated in online courses were interviewed for the study. The participants’ responses to the interview questions were analyzed using qualitative methods of data analysis. The results show that the majority of the participants had cheated or knew of someone who had cheated in online courses. Working together with other students, referring to class notes, textbooks, and other useful course materials while taking online tests and quizzes, and using Internet resources were some of the methods students used to cheat in online courses. One student reported that she was paid to complete an entire course for another student. This unique finding of the study can be labeled ‘paid impersonation.

    A facile designed highly moderate craspedia flowerlike sulphated Bi2O3-fly ash catalyst: Green synthetic strategy for (6H-pyrido[3,2-b]carbazol-4-yl)aniline derivatives in water

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    AbstractThe air pollutant fly ash was facile designed as a green catalyst and practical to organic synthesis. We have designed sulfated Bi2O3-fly ash catalyst (12wt%) and it was characterized by Fourier transform infrared (FT-IR), confocal Raman, Powder X-ray diffraction (XRD), Field emission electron microscopy (FE-SEM), elemental color mapping, energy-dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM) and Brunauer–Emmett–Teller (BET) techniques. The sulfated Bi2O3-fly ash was found an excellent catalytic application for the synthesis of (6H-pyrido[3,2-b]carbazol-4-yl)aniline derivatives in water has been described. The synthesized (6H-pyrido[3,2-b]carbazol-4-yl)aniline derivatives were confirmed by spectral techniques Fourier transform infrared (FT-IR), Nuclear magnetic resonance (NMR) and Liquid chromatography–mass spectrometry (LC–MS). The significant catalytic role of Bi–N interaction was readily form adduct, moreover Bi–O bond was favorable for hydrogen abstraction, dehydration and aromatization. Due to the strong potential, the precise reaction time and high yield have been achieved, which is realized from hot filtration test. The sulfated Bi2O3-fly ash catalyst could be reused for five successive run, the resulting in no appreciable change in the catalytic activity. The crystal phase and surface morphology of fifth run catalyst were examined by powder XRD, FE-SEM, EDS and TEM techniques, and the results revealed no changes in catalyst nature. The sulfated Bi2O3-fly ash catalyst has high efficiency, reusability, good catalytic activity, environmentally harmless and notable potential in industrial applications

    Students’ Content Preferences for Taking Online Courses

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    A survey was conducted to determine university students’ course taking preferences in different content areas. Courses that were included in this study were taken from the undergraduate catalog of a university in a large and diverse metropolitan area. More than 35,000 students are currently enrolled in this university that serves students from all over the world, including the Caribbean and Latin American countries. One hundred and thirteen students participated in this study. A convenience sampling method was used to select the study participants. The study did find significant differences between males and females in terms of online course taking preferences. There were also significant differences in course taking preferences, online or face to face, between those who have previously completed one or more courses online and those who have not completed any courses online. The implications of the findings of this study for offering online courses are discussed. Suggestions for conducting future studies are also offered

    Spectral LFER studies in some N-(substituted phenyl) formamides

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    A series of N-(substituted phenyl) formamides were synthesised by sulphated titania (TiO2-SO4 2-) catalyzed formylation of substituted anilines and formic acid in acetonitrile medium at room temperature. The synthesised formamide derivatives are characterized by their spectral data. The infrared νNH, CO (cm-1) stretches, chemical shifts(δ, ppm) of NH, COH and ipso carbons(Ar-C-NH) were assigned and correlated with Hammett substituent constants using single and multi-regression analysis. From the results of statistical analyses, the effect of substituents on the spectral data have been studied
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