Search Results - (Author, Cooperation:R. Diaz)
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1Latest Papers from Table of Contents or Articles in PressChristian, W. J. R., Diaz; Dela; O, F. A., Atherton, K., Patterson, E. A.
Royal Society
Published 2018Staff ViewPublication Date: 2018-05-24Publisher: Royal SocietyElectronic ISSN: 2054-5703Topics: Natural Sciences in GeneralKeywords: materials science, mechanical engineeringPublished by: -
2Latest Papers from Table of Contents or Articles in PressV. Jeudy, R. Díaz Pardo, W. Savero Torres, S. Bustingorry, and A. B. Kolton
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-08-08Publisher: American Physical Society (APS)Print ISSN: 1098-0121Electronic ISSN: 1095-3795Topics: PhysicsKeywords: MagnetismPublished by: -
3Latest Papers from Table of Contents or Articles in PressB. Davies ; E. Hatton ; N. Altemose ; J. G. Hussin ; F. Pratto ; G. Zhang ; A. G. Hinch ; D. Moralli ; D. Biggs ; R. Diaz ; C. Preece ; R. Li ; E. Bitoun ; K. Brick ; C. M. Green ; R. D. Camerini-Otero ; S. R. Myers ; P. Donnelly
Nature Publishing Group (NPG)
Published 2016Staff ViewPublication Date: 2016-02-04Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Alleles ; Animals ; Binding Sites ; Chromosome Pairing/genetics ; Chromosomes, Mammalian/genetics/metabolism ; DNA Breaks, Double-Stranded ; Female ; *Genetic Speciation ; Histone-Lysine N-Methyltransferase/*chemistry/genetics/*metabolism ; Humans ; Hybridization, Genetic/*genetics ; Infertility/*genetics ; Male ; Meiosis/genetics ; Mice ; Mice, Inbred C57BL ; Protein Binding ; *Protein Engineering ; Protein Structure, Tertiary/genetics ; Recombination, Genetic/genetics ; Zinc Fingers/*geneticsPublished by: -
4Latest Papers from Table of Contents or Articles in PressN. Tajima ; E. Karakas ; T. Grant ; N. Simorowski ; R. Diaz-Avalos ; N. Grigorieff ; H. Furukawa
Nature Publishing Group (NPG)
Published 2016Staff ViewPublication Date: 2016-05-03Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
5Latest Papers from Table of Contents or Articles in PressJ M Holzer, M C Adamescu, F J Bonet-García, R Díaz-Delgado, J Dick, J M Grove, R Rozzi and D E Orenstein
Institute of Physics (IOP)
Published 2018Staff ViewPublication Date: 2018-10-06Publisher: Institute of Physics (IOP)Print ISSN: 1748-9318Electronic ISSN: 1748-9326Topics: BiologyEnergy, Environment Protection, Nuclear Power EngineeringPublished by: -
6Latest Papers from Table of Contents or Articles in PressJ. Park ; I. Al-Ramahi ; Q. Tan ; N. Mollema ; J. R. Diaz-Garcia ; T. Gallego-Flores ; H. C. Lu ; S. Lagalwar ; L. Duvick ; H. Kang ; Y. Lee ; P. Jafar-Nejad ; L. S. Sayegh ; R. Richman ; X. Liu ; Y. Gao ; C. A. Shaw ; J. S. Arthur ; H. T. Orr ; T. F. Westbrook ; J. Botas ; H. Y. Zoghbi
Nature Publishing Group (NPG)
Published 2013Staff ViewPublication Date: 2013-05-31Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Amino Acid Sequence ; Animals ; Animals, Genetically Modified ; Ataxin-1 ; Ataxins ; Cell Line, Tumor ; Disease Models, Animal ; Down-Regulation/drug effects ; Drosophila melanogaster/genetics/*metabolism ; Female ; Humans ; MAP Kinase Signaling System/drug effects ; Male ; Mice ; Mitogen-Activated Protein Kinases/*metabolism ; Molecular Sequence Data ; Molecular Targeted Therapy ; Nerve Tissue Proteins/chemistry/genetics/*metabolism/*toxicity ; Nuclear Proteins/chemistry/genetics/*metabolism/*toxicity ; Phosphorylation ; Protein Stability/drug effects ; Ribosomal Protein S6 Kinases, 90-kDa/deficiency/genetics/*metabolism ; Spinocerebellar Ataxias/*metabolism/*pathology ; Transgenes ; ras Proteins/*metabolismPublished by: -
7Articles: DFG German National LicensesZertuche, Humberto Fernandez ; Perches, R. Diaz
Oxford, UK : Blackwell Publishing Ltd
Published 1977Staff ViewISSN: 1749-6632Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Natural Sciences in GeneralType of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 1420-9071Source: Springer Online Journal Archives 1860-2000Topics: BiologyMedicineNotes: Summary After being analyzed for the first time with modern techniques, we offer a detailed description of a normal karyotype of the speciesArvicola sapidus ssp.sapidus Miller 1908. A centric fission is described in an individual with abnormal chromosome number (2n=41).Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 1432-5195Keywords: Cubitus varus ; OsteotomySource: Springer Online Journal Archives 1860-2000Topics: MedicineDescription / Table of Contents: Résumé Chez 14 malades, une déformation en cubitus varus, après fracture supracondylienne de l'humérus, a été traitée par ostéotomie. Dans les quatre premiers cas, les auteurs ont réalisé une ostéotomie cunéiforme standard et dans les dix derniers cas, ils ont eu recours à une nouvelle technique d'ostéotomie hémicunéiforme. Cette technique permet un meilleur contrôle de la correction et une meilleure fixation de l'ostéotomie. Avant l'opération, le cubitus varus était, dans tous les cas, de 10° ou davantage. Après l'opération, tous les malades sauf un avaient retrouvé un angle brachio-antibrachial normal, ou, tout au plus, un cubitus varus de 5°. Dans ce cas, l'ostéotomie standard avait échoué en raison d'une fixation insuffisante, ainsi que la réintervention par ostéotomie hémicunéiforme à cause d'une infection postopératoire.Notes: Summary Osteotomy was performed for cubitus varus deformity in 14 patients following supracondylar fracture of the humerus. In the first four patients the osteotomy was performed by a standard wedge technique and in the last ten cases by a new technique of hemiwedge osteotomy. The hemi-wedge technique permitted better control of the correction and better fixation of the osteotomy. Before the operation all cases had a cubitus varus of 10° or more. After the operation all but one patient had a normal carrying angle or at most a cubitus varus of 5°. In this case the standard osteotomy failed because of poor fixation and after re-operation by the hemi-wedge osteotomy because of infection.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 1436-2449Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyMechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsNotes: Summary In this work are examined changes of the α relaxation spectrum of PMA during the structural relaxation process which follows a quenching from a temperature To above Tg to another T1 below Tg, which is mantained constant. It is found that the relaxation times spectrum is shifted towards longer times as the ageing time increases. At the same time, its form becomes more and more wide, approaching the form of the relaxation times spectrum calculated at temperatures above Tg from alternative dielectric measurements. A parameter measuring the shift of the spectrum, a(ta), is defined and its dependence on ageing time and annealig temperature is studied. The effective relaxation time of the structural relaxation process is calculated from a(ta) and it is found dependent on the temperature of annealing as well as on the value of a(ta)itself.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1573-6857Source: Springer Online Journal Archives 1860-2000Topics: BiologyType of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 1573-6857Source: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract Inversion frequencies in chromosomes 16 and 18 and B-chromosome frequency have been studied in three populations of Rattus rattus frugivorus. In two of these, Cuenca and San Pedro del Pinatar, the frequencies of homozygous and heterozygous individuals do not differ significantly from the Hardy-Weinberg equilibrium for both chromosome pairs. By contrast, in the Vega de Granada population there are fewer heterozygous and more homozygous individuals than expected on the basis of the Hardy-Weinberg distribution, although the frequency distributions of karyotypes in these three populations are not significantly different. In relation to the B chromosome, the Cuenca and San Pedro populations have frequencies of B-carrying animals of 0.25 and 0.22 respectively, the Vega de Granada population of 0.80.Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesCalleja, R. Diaz ; Sanchis, M. J. ; Gargallo, L. ; Radic, D.
Bognor Regis [u.a.] : Wiley-Blackwell
Published 1997Staff ViewISSN: 0887-6266Keywords: poly(monoethylphenyl itaconate) ; mechanical relaxation ; dielectric absorption ; dielectric loss modulus ; deconvolution method ; Physics ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyPhysicsNotes: Dynamic mechanical and dielectric relaxational behavior of poly(monoethylphenyl itaconate) at different frequencies and temperatures was studied. Three relaxation zones are found. The dynamic mechanical response is dominated by a relaxation peak at room temperature, labeled β relaxation. Two prominent shoulders labelled as γ and α relaxations are observed. Because of the overlapping of the α and γ with the β relaxation, a deconvolution method to improve the understanding of these phenomena is proposed. In spite of the complexity of the experimental spectra, the proposed deconvolution method seems to be a convenient approach to interpret the relaxational behavior of this polymer. © 1997 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 35: 2749-2756, 1997Additional Material: 8 Ill.Type of Medium: Electronic Resource -
14Articles: DFG German National LicensesStaff View
ISSN: 0032-3888Keywords: Chemistry ; Chemical EngineeringSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyMechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsNotes: It has been observed in dynamic mechanical measures that the range of temperatures in which relaxation properties are affected by the diminishing of the free volume has, as a lower limit the temperature at which the maximum of G″ or tgδ, corresponding to the β relaxation, occurs. In dielectric measures on polymers in which the β relaxation is not predominant over the α relaxation, this temperature range is scarcely affected by changes in frequency, whereas the peak shifts according to its activation energy. This fact leads to the conclusion that the decrease in free volume due to a slow cooling from a temperature above Tg mainly affects mobility of the main chains under Tg, without disturbing the groups that give rise to the secondary relaxations.Additional Material: 4 Ill.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 0887-6266Keywords: poly(thiocarbonates) ; dielectric relaxation ; conductivity ; physical aging ; molecular motions ; Chemistry ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyPhysicsNotes: The dielectric absorptions observed on six poly(thiocarbonates) (PTC) containing different substituents in the interphenylic carbon atom are subjected to a study. The α relaxation process associated with the glass transition temperature, which appears at the highest temperature studied, is overlapped with a strong conductive component. Between 80 and 100°C dielectric activity (β) is observed, which is related to structural relaxation phenomena. Polymers with double substitution on the interphenylic carbon atom show a γ relaxation with an activation energy of ca. 11 kcal mol-1 while those where the carbon atom is linked to a cyclohexyl group show higher activation energies and their respective characteristics. A cryogenic absorption around -120°C, for at least three polymers with an activation energy of about 5 kcal mol-1, is detected. © 1994 John Wiley & Sons, Inc.Additional Material: 5 Ill.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 0032-3888Keywords: Chemistry ; Chemical EngineeringSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyMechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsNotes: In this paper, we present a study of the dynamic mechanicall behavior of a quenched poly(vinyl chloride). A new relaxation between the glass transition and the β transition is reported. We have related this new relaxation to an absence of physical aging.Additional Material: 1 Ill.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesDueñas, J. M. Meseguer ; Ribelles, J. L. Gomez ; Calleja, R. Diaz
New York, NY [u.a.] : Wiley-Blackwell
Published 1989Staff 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: The dielectric relaxation zone of a low-density polyethylene has been studied by thermally stimulated depolarization currents (TSDC) and thermal sampling (TS). Three relaxations have been found in this zone, which have been labeled γI, γII, and γIII in decreasing order of temperature. Samples of different crystallinities were subjected to several thermal treatments in order to study the molecular origin of each relaxation. The γI relaxation intensity changes with the thermal treatment, while the intensity of the γI relaxation is only slightly modified. Using TS it has been proved that the γI relaxation fulfils the compensation law with a high level of significance. Nevertheless, the experimental data are not enough to verity the γI and γIII relaxation.Additional Material: 5 Ill.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesCalleja, R. Díaz ; Ribelles, J. L. Gómez ; Pradas, M. Monleón ; Greus, A. Ribes ; Colomer, F. Romero
Brookfield, Conn. : Wiley-Blackwell
Published 1991Staff ViewISSN: 0272-8397Keywords: Chemistry ; Chemical EngineeringSource: Wiley InterScience Backfile Collection 1832-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: The dynamic mechanical relaxation behavior of poly(methyl methacrylate) reinforced by continuous parallel Kevlar-49 fibers is investigated here on samples with several fiber volume fractions. The shifts in the temperature of the main relaxation of the matrix are interpreted according to free volume considerations and with the help of a thermomechanical block model. The dependence of the storage and loss moduli both on temperature and fiber content found experimentally can be reproduced by the model. It is not necessary to rely on the existence of an interphase to account for the modifications evidenced by the spectrum of the matrix, which can be explained on the basis of the two phase model.Additional Material: 8 Ill.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 0098-1273Keywords: Physics ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyPhysicsNotes: Some years ago, Brather proposed a method for calculation of the real and imaginary parts of the complex dielectric permittivity starting from measurements of isothermal polarization current. This method shows some advantages over the Hamon method, which is normally used. Both methods are applied in this work to the β relaxation of poly(butyl methacrylate). It is concluded that, with the usual accuracy of measurement, a combination of the two methods is advisable; Hamon's method is taken to be a first approximation to that of Brather. Results following the two procedures are compared, and their respective advantages and disadvantages are discussed.Additional Material: 1 Ill.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 0098-1273Keywords: Physics ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyPhysicsNotes: Dielectric results at frequencies between 6 × 10-4 and 105 Hz are given for the β relaxation region of poly(methyl methacrylate) (PMMA), poly(ethyl methacrylate) (PEMA), poly(butyl methacrylate) (PBMA), and poly(isobutyl methacrylate) (PisoBMA). Apparent activation energies and relaxation strengths are calculated, as well as the relaxation time distribution and the form factor of the Fuoss-Kirkwood equation. It is found that in PMMA, PEMA, and PBMA, the activation energy of the β relaxation is the same, the maxima occurring at the same frequency for the same temperatures, in accordance with the dynamic mechanical results of Heijboer, the dielectric results of Mikhailov, and at variance with data of Tetsutani et al. It is also found that the form factor follows the same temperature dependence. Data on the β relaxation of poly(hydroxyethyl methacrylate) (PHEMA), not previously reported, are also presented, and the displacement toward high temperatures of the β relaxation of PisoBMA and PHEMA is justified.Additional Material: 13 Ill.Type of Medium: Electronic ResourceURL: