Search Results - (Author, Cooperation:M. J. Collins)
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1Latest Papers from Table of Contents or Articles in PressE. Cappellini ; M. J. Collins ; M. T. Gilbert
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-03-22Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Amino Acid Sequence ; Animals ; Databases, Protein ; Fossils ; Humans ; *Mass Spectrometry/instrumentation/methods ; Mummies ; Proteins/*chemistry/isolation & purification ; Proteolysis ; ProteomicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressF. Welker ; M. J. Collins ; J. A. Thomas ; M. Wadsley ; S. Brace ; E. Cappellini ; S. T. Turvey ; M. Reguero ; J. N. Gelfo ; A. Kramarz ; J. Burger ; J. Thomas-Oates ; D. A. Ashford ; P. D. Ashton ; K. Rowsell ; D. M. Porter ; B. Kessler ; R. Fischer ; C. Baessmann ; S. Kaspar ; J. V. Olsen ; P. Kiley ; J. A. Elliott ; C. D. Kelstrup ; V. Mullin ; M. Hofreiter ; E. Willerslev ; J. J. Hublin ; L. Orlando ; I. Barnes ; R. D. MacPhee
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-03-25Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Amino Acid Sequence ; Animals ; Bone and Bones/chemistry ; Cattle ; Collagen Type I/*chemistry/genetics ; Female ; *Fossils ; Mammals/*classification ; Perissodactyla/classification ; *Phylogeny ; Placenta ; Pregnancy ; Proteomics ; South AmericaPublished by: -
3Latest Papers from Table of Contents or Articles in PressK. E. Penkman ; R. C. Preece ; D. R. Bridgland ; D. H. Keen ; T. Meijer ; S. A. Parfitt ; T. S. White ; M. J. Collins
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-08-02Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Amino Acids/analysis ; Animals ; Archaeology/*methods ; *Biodiversity ; *Chronology as Topic ; *Fossils ; Fresh Water ; *Gastropoda/chemistry/classification ; Great Britain ; Humans ; Proteins/chemistryPublished by: -
4Latest Papers from Table of Contents or Articles in PressAdamowicz, M., Morgan, C. C., Haubner, B. J., Noseda, M., Collins, M. J., Abreu Paiva, M., Srivastava, P. K., Gellert, P., Razzaghi, B., OGara, P., Raina, P., Game, L., Bottolo, L., Schneider, M. D., Harding, S. E., Penninger, J., Aitman, T. J.
American Heart Association (AHA)
Published 2018Staff ViewPublication Date: 2018-02-02Publisher: American Heart Association (AHA)Print ISSN: 1942-325XElectronic ISSN: 1942-3268Topics: MedicineKeywords: Computational Biology, Cell Biology/Structural Biology, Mechanisms, Myocardial Regeneration, Gene Expression & RegulationPublished by: -
5Latest Papers from Table of Contents or Articles in PressDaly, K. G., Maisano Delser, P., Mullin, V. E., Scheu, A., Mattiangeli, V., Teasdale, M. D., Hare, A. J., Burger, J., Verdugo, M. P., Collins, M. J., Kehati, R., Erek, C. M., Bar-Oz, G., Pompanon, F., Cumer, T., Cakırlar, C., Mohaseb, A. F., Decruyenaere, D., Davoudi, H., Cevik, O., Rollefson, G., Vigne, J.-D., Khazaeli, R., Fathi, H., Doost, S. B., Rahimi Sorkhani, R., Vahdati, A. A., Sauer, E. W., Azizi Kharanaghi, H., Maziar, S., Gasparian, B., Pinhasi, R., Martin, L., Orton, D., Arbuckle, B. S., Benecke, N., Manica, A., Horwitz, L. K., Mashkour, M., Bradley, D. G.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-07-06Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyGeosciencesComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: GeneticsPublished by: -
6Articles: DFG German National LicensesRitz-Timme, S. ; Rochholz, G. ; Schütz, H. W. ; Collins, M. J. ; Waite, E. R. ; Cattaneo, C. ; Kaatsch, H.-J.
Springer
Published 2000Staff ViewISSN: 1437-1596Keywords: Key words Age estimation ; Aspartic acid ; racemisation ; Minimal standards ; Quality controlSource: Springer Online Journal Archives 1860-2000Topics: MedicineLawNotes: Abstract Estimates of the age of living and dead individuals, obtained in order to answer legal or social questions, require minimum quality standards in order to guarantee data quality. We present an outline strategy (with recommendations) for the attainment of quality assurance in age estimation based on aspartic acid racemisation. The strategy is based on a definition of minimum standards for laboratories, including documentation of procedures, methodology and levels of expertise, and the formulation of guidelines for intralaboratory and interlaboratory quality control.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesRitz-Timme, S. ; Cattaneo, C. ; Collins, M. J. ; Waite, E. R. ; Schütz, H. W. ; Kaatsch, H.-J. ; Borrman, H. I. M.
Springer
Published 2000Staff ViewISSN: 1437-1596Keywords: Key words Age estimation ; Forensic practise ; Demands ; State of the artSource: Springer Online Journal Archives 1860-2000Topics: MedicineLawNotes: Abstract Age estimation in cadavers, human remains and living individuals may clarify issues with significant legal and social ramifications for individuals as well as for the community. In such cases methods for estimating age should fulfil the following specific demands: (1) they must have been presented to the scientific community, as a rule by publication in peer-reviewed journals, (2) clear information concerning accuracy of age estimation by the method should be available, (3) the methods need to be sufficiently accurate and (4) in cases of age estimation in living individuals principles of medical ethics and legal regulations have to be considered. We have identified and summarized the methods that essentially fulfil these specific demands. In childhood and adolescence morphological methods based on the radiological examination of dental and skeletal development are to be recommended. In adulthood, the accuracy of most morphological methods is much reduced. Here a biochemical method based on aspartic acid racemization in dentine provides the most accurate estimates of age, followed by special morphological dental and skeletal methods. The choice of method has to take account of the individual circumstances of each case. Most methods require either the consultation of specialised and trained scientists or an adequate calibration by the “user”. Very few attempts have been made to find common standardisation, calibration and evaluation procedures or to develop means of quality assurance for methods of age estimation. Efforts in these directions are necessary to guarantee quality standards and adequate answers to the important legal and social issue of age estimation in forensic medicine.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 1437-1596Keywords: Key words Hydroxyproline ; D/L Aspartic acid ; N-TFA isopropyl ester derivatives ; Gas chromatography ; CollagenSource: Springer Online Journal Archives 1860-2000Topics: MedicineLawNotes: Abstract The proportion of D- to L-enantiomers of aspartic acid in metabolically isolated proteins has been used by forensic scientists to estimate age at death. We have demonstrated the interference of a derivative of hydroxyproline (N-TFA isopropyl Hyp ester) with the N-TFA isopropyl L-Aspartic (Asp) acid ester during gas chromatography of amino acids. This has serious implications for the accurate quantification of the D- to L-Asp ratio extracted from collagenous proteins. Having demonstrated the potential for this co-elution in amino acid standards, acid-soluble dentine proteins and non-mineralised collagen, we argue that this problem can be overcome either by high resolution separation or by analysis of the (Hyp-poor) non-collagenous protein fraction.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 0021-8995Keywords: Chemistry ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyMechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsNotes: Methanolic sodium hydroxide reacted more quickly than aqueous sodium hydroxide with poly(ethylene terephthalate) (PET). Larger amounts of low molecular weight deposits were formed at the product surface after the former treatment, also indicating the severity of this attack. The molecular weight distribution, obtained by gel permeation chromatography for the product of methanolic NaOH hydrolysis, had a population with 2400 peak molecular weight, which was not present on the chromatograph of the aqueous sodium hydroxide hydrolyzed product. This population is hypothesized to have been crystalline material. Extraction and analysis by high performance liquid chromatography of the low molecular weight products on the surface and in the bulk of the hydrolyzed PET samples, in comparison to controls, revealed the presence of more oligomeric species after hydrolysis. Also, more oligomeric species were present in the bulk extract of the methanolic sodium hydroxide hydrolyzed sample than in the aqueous NaOH hydrolyzed product.Additional Material: 8 Ill.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesCimecioglu, A. L. ; Zeronian, S. H. ; Alger, K. W. ; Collins, M. J. ; East, G. C.
New York, NY [u.a.] : Wiley-Blackwell
Published 1986Staff ViewISSN: 0021-8995Keywords: Chemistry ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyMechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsNotes: Heat treatment of polyester yarns induces the selective crystallization of the cyclic trimer [(GT)3] in the form of polygonal solids on the fiber surfaces. At the temperature studied, namely, 200°C, the diffusion rate of (GT)3 appears to be very rapid. Small quantities of the cyclic tetramer were also found. The total extractable oligomer content of the samples is reduced considerably after annealing at 200°C, mainly due to solid phase polymerization. Exposure to methylene chloride vapor also causes cyclic oligomers to diffuse to the fiber surface. The migration of (GT)3 is again very rapid. Larger cyclics also diffuse to the surface in appreciable quantities. Solvent exposed samples, unlike annealed ones, exhibit irregular crystal shapes and sizes on their surfaces. The moisture regain of the extracted oligomers is less than that of the polyester. It is suggested that this is due to the oligomers being in a crystalline form.Additional Material: 17 Ill.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesCollins, M. J. ; Hatton, P. M. ; Sternhell, S. ; Tansey, C. W.
Chichester : Wiley-Blackwell
Published 1987Staff ViewISSN: 0749-1581Keywords: 4J proton-proton coupling constant ; ortho-benzylic coupling constant ; ring size dependence ; substituent dependence ; Chemistry ; Analytical Chemistry and SpectroscopySource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyNotes: The magnitude of the 4J proton-proton coupling constant across the fragment CH3—C—C—H (a probe of the bond order between the central sp2-sp2 hybridized carbon atoms) has been found to be essentially independent of substitution on a toluene fragment and on the size of the ring containing the ortho-allylic fragment. The coupling constant is sensitive to direct substitution on the ortho-allylic fragment, especially where the substituent is placed α to the methyl group.Additional Material: 1 Ill.Type of Medium: Electronic ResourceURL: