36 research outputs found

    What Impact does Physical Education have on Classroom Management?: Focus on a case of a novice teacher in a primary school

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    This article aims to address the relationship between physical education and classroom managemen of a novice teacher in a primary school. In conclusion, the things of this case study were as follows: (1) As a feature of the novice teacher A, the scores in "Attitude" dimension of physical education class evaluation was high, then learning discipline was retained. However, the scores in "Human Relationship" dimension of class consciousness showed low value, and it turned out that the novice teacher A was suffering from constructing good human relations within the class. (2) From the result of correlation between physical education class evaluation and classroom manegement, there was no strong relationship between physical education and classroom management of the novice teacher A. As a factor, from the interview of the novice teacher A, it was suggested that the image of classroom manegement the novice teacher A intended was not clear

    Chemical constituents of Evolvulus nummularius

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    492-498Three new compounds, 1-3 together with known compounds, β-sitosterol and its glucoside, stigmasterol, d-mannitol, ursolic acid and oleanolic acid have been isolated from the aerial parts of Evolvulus nummularius. On the basis of their spectroscopic data and chemical study, the structures of the new compounds 1-3 have been established as 3-O-(4-stearoyl-Z-coumaroyl)-stigmast-5, E–22–dien-3β-ol; 16-(E-coumaroyloxy)-palmitic acid and 3β-hydroxy-urs-12-en-29β-oic acid, respectively. Possibly compound 3 is identical with plectranthoic acid, whose structure was wrongly assigned as 3α-hydroxy-urs-12-en-29β-oic acid

    Phytochemical investigation of <i>Gomphrena globosa </i>aerial parts

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    2223-2227One new triterpenoid saponin (gomphrenoside,1) and one new hopane derivative (hopan-7β-ol,2) along with known compounds, β-sitosterol-β-D-glucoside and 1-triacontanol have been isolated from the aerial parts of Gompizrena globosa. On the basis of chemical and spectroscopic(including 20 NMR) methods, the structure of 1 has been elucidated as 3β-O-α-L- arabinopyranosyl-6β-hydroxyolean-12-ene-23,29-dioic acid-29-O-β-D-glucopyranoside and structure of 2 is determined

    Chemical Constituents of Evolvulus nummularius.

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    492-498Three new compounds, 1-3 together with known compounds, β-sitosterol and its glucoside, stigmasterol, d-mannitol, ursolic acid and oleanolic acid have been isolated from the aerial parts of Evolvulus nummularius. On the basis of their spectroscopic data and chemical study, the structures of the new compounds 1-3 have been established as 3-O-(4-stearoyl-Z-coumaroyl)-stigmast-5, E–22–dien-3β-ol; 16-(E-coumaroyloxy)-palmitic acid and 3β-hydroxy-urs-12-en-29β-oic acid, respectively. Possibly compound 3 is identical with plectranthoic acid, whose structure was wrongly assigned as 3α-hydroxy-urs-12-en-29β-oic acid

    Expeditious reaction of ninhydrin with active methylene compounds on montmorillonite K10 clay

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    International audienceNinhydrin reacted expeditiously with thirteen active methylene compounds on montmorillonite K10 clay at room temperature to furnish, in 5 min, a Knoevenagel condensate in one case, aldols in six cases, aldol-derived cyclic hemiketals in three cases, and interesting products in the remaining three cases. Almost identical results were obtained, but faster, when the reactions were carried out in water on steam-bath. The structures of two novel products were also confirmed by single-crystal X-ray diffraction analysis

    Triterpenoids from <i>Bignonia unguis- cati</i> roots

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    1735-1739One new triterpenoid named acetylbignonic acid 1 along with 2a-hydroxyursolic acid 2 have been isolated from the roots of Bignonia unguiscati. On the basis of chemical and spectral evidence, the structure of 1 has been established as 3b-acetoxy-19-hydroxyurs-12-en-29-oic acid

    Chemical constituents of <i style="">Mussaenda incana</i>

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    2362-2366One new iridolactone, shanzhilactone 1 along with known iridoidglucosides, mussaenoside, barlerin (8-O-acetyl­shanzhiside methyl ester), lupeol and β-D-glucose have been isolated from the stem of Mussaenda incana (Rubiaceae) and their structures elucidated by spectroscopic and chemical studies

    Steroid and nitro phenol esters from <i>Bignonia unguis-cati roots</i>

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    1514-1518Two new esters, β-sitosterol cerotate 1 and 2-(4-hydroxy-3-nitrophenyl)ethyl stearate 2 have been isolated from the roots of Bignonia unguis-cati (Bignoniaceae) and their structures are elucidated by spectroscopic and chemical studies
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