18 research outputs found

    W.O. Mitchell. Dramatic W.O. Mitchell

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    Oral Diagnosis - historical

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    Gobetti, John, "Emergency Kit and Supplies": This tape explains the emergency procedures used at the School of Dentistry, the contents of the emergency kit, and the location of the kits. (48:30) Orig. air date: JUN 22 81Brooks, Sharon, "Dental Emergency Examination": Demonstration of dental emergency procedure on a patient. Discussion of steps necessary to make a diagnosis. (29:25) Orig. air date: APR 10 75Nemiroff, Martin, "Applications of Internal Medicine - Endocrine Problems": Different clinical examples of endocrine problems are presented along with a discussion of the symptoms. (7:50) Orig. air date: OCT 31 75Nemiroff, Martin, "Final Review Exercises": A test covering the material presented on tape 285. (8:55) Orig. air date: OCT 31 75Nemiroff, Martin, "Heart Rates and Rhythms": This cut depicts different normal and abnormal heart rates and rythms. The sound of the heart is amplified so the viewer can hear the actual sounds. (6:20) Orig. air date: OCT 31 75Gobetti, John, "Laboratory Aids in Diagnosis: Pt.I, Specimen Collection": Demonstrates lab collection techiques; armamentarium and procedure of drawing blood samples and bacteria smears. (24:40) Orig. air date: SEP 2 76Nemiroff, Martin, "Midterm Review Exercises": A test on the first two parts of the tape. (14:23) Orig. air date: OCT 31 75Millard, H. Dean, "Examination of the Mouth": An introduction to the clinical examination of a dental patient. This tape presents a guide for achievinga thorough oral examination on a dental patient. (56:40) Orig. air date: SEP 9 71Gobetti, John, "Simulated Office Emergencies": Shows symptoms of medical emergencies in the Dental Office. Angina,epilepsy, coronary occlusion,hypoglycemia, hyperventilation,anxiety, asthma,allergic reaction, etc. (21:34) Orig. air date: JAN 4 73Millard, H. Dean; Arft, [], "Electric and Digital Pulp Testing": Shows the use of electric and digital devices for Pulp Testing. Their correct use, strengths and weaknesses are also discussed on the tape. (23:00) Orig. air date: OCT 5 86Margeson, Ross, "Radiograph and Digital Examination of the Teeth": Interpretation of x-ray findings, explorer examination and development of a treatment plan. (23:39) Orig. air date: AUG 24 73http://deepblue.lib.umich.edu/bitstream/2027.42/64977/2/EmergencyKit_126_1.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/3/EmergExam_310-2.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/4/EndocrineProblems_285-4.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/5/FinalReview_285-5.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/6/HeartRates_285-1.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/7/LabAidsInDx_187-1.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/8/MidTermReview_285-3.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/9/MouthExam_287-1.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/10/OfficeEmerg_102-2.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/11/PulpTesting_661-1.movhttp://deepblue.lib.umich.edu/bitstream/2027.42/64977/12/TeethExam_187-2.mo

    Expedient Hydrofunctionalisation of Carbonyls and Imines Initiated by Phosphacyclohexadienyl Anions

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    The ability of phosphacyclohexadienyl anions [Li(1-R-PC5Ph3H2)] [R=Me (1 a), nBu (1 b), tBu (1 c), Ph (1 d) and CH2SiMe3 (1 e)] to initiate hydrofunctionalisation reactions was investigated and compared with simple, commercially available compounds, such as LiOtBu, KOtBu and nBuLi. All compounds are expedient catalysts for the hydroboration of a wide scope of substrates, ranging from aldehydes to imines and esters. In the hydroboration of carbon dioxide, however, only our system was observed to efficiently produce the desired methanol equivalents

    Cucurbit[n]urils (n = 5\u20138): a comprehensive solid state study

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    Cucurbit[n]urils (CB[n], n = 5\u20138) have been prepared, separated, and purified, and the structure of their solid state assemblies has been addressed. A number of general features were identified which are of interest to understand some peculiar properties of cucurbiturils (solubility, aggregation, assembly, transformation to porous crystals, influence of air humidity). CB[5], CB[6], and CB[8] were isolated as hydrate crystals whose structures were found to show a strong tendency of the macrocycles to interpenetrate. A self-closing effect was rationalized in terms of multiple weak CH\ub7\ub7\ub7O interactions between the macrocycles, the degree of which is discussed in detail. Solid state cross polarization magic angle spinning (CP-MAS) 13C NMR spectra obtained at 900 MHz were correlated with the crystal structures. An odd\u2013even effect in the crystallinity of thermally treated CB samples (CB[5] and CB[7] amorphous, CB[6] and CB[8] crystalline) was observed, which is reflected in differences in water solubility (CB[5] and CB[7] are water-soluble, whereas CB[6] and CB[8] are only very scarcely so). This may be explained by a less efficient self-association for CB[5] and CB[7] as compared with CB[6] and CB[8], which is reflected in the number of inter-cucurbituril CH\ub7\ub7\ub7O interactions per cucurbituril. This leads to a more favorable solvation for the CBs having an odd symmetry, whereas those with even symmetry prefer to self-associate in a manner ultimately leading to crystallization. We also propose an explanation for the presence of anions (Cl\u2013) inside some cucurbituril materials, whose cavity is often considered hydrophobic. Furthermore, it is demonstrated that large quantities of the very stable microporous CB[6] crystals (which have the R3\u305 channel structure) can be obtained very easily by a simple thermal treatment of the hexagonal crystals of CB[6] (P6/mmm structure) obtained directly from the initial reaction used to synthesize the various CB[n]. The micromorphology of the CB[n] powders was established using scanning electron microscopy (SEM), and the tendency of each material to absorb water from the atmosphere was demonstrated by thermogravimetric analyses (TGA).Peer reviewed: YesNRC publication: Ye

    Interfacing supramolecular gels and quantum dots with ultrasound: smart photoluminescent dipeptide gels

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    Our recent discovery of a new dipeptide gelator that can be activated by ultrasound in alkanes and polar solvents[8] allows one to envision several unusual and unexpected applications. A striking feature of this dipeptide is the readily ultrasound-induced gelation in hexane containing CdSe/ZnS core/shell QDs. In this case, ultrasound allows a blurring of the frontier between \u2018\u2018soft\u2019\u2019 multi-responsive supramolecular gels and \u2018\u2018hard\u2019\u2019 light-emitting semiconductor NPs, affording new materials displaying properties from each component. Here, we describe the preparation of QD-dipeptide nanocomposite gels which show bright luminescence under UV light and which can be switched from liquid to solid by ultrasound and back to liquid when heated. Applications using the gel and the dry material (xerogel) are also demonstrated regarding chemical sensing.Peer reviewed: YesNRC publication: Ye

    Photoluminescent quantum dot\u2013cucurbituril nanocomposites

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    The preparation of entrapped CdSe\u2013ZnS fluorescent quantum dots (QDs) in cucurbituril (CB) polymer capsules is reported.Peer reviewed: YesNRC publication: Ye
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