ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

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Digitale Medien

Study of the reaction of complexation of penicillin V with cobalt(II) in methanolic medium

Martinez, J.H. ; Martinez, P.J. ; Gutierrez, P. ; [weitere]

Amsterdam : Elsevier

Talanta 39 (1992), S. 637-641

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ISSN: 0039-9140

Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Thema: Chemie und Pharmazie

Materialart: Digitale Medien

URL: http://linkinghub.elsevier.com/retrieve/pii/0039-9140(92)80073-M

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2

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Plutonium oxide polishing for MOX fuel fabrication (2007)

Alwin, Jennifer Louise ; Coriz, Fawn ; Danis, Jan A. ; [weitere]

Elsevier

In: Journal of Alloys and Compounds. 2007; 444-445: 565-568. Published 2007 Oct 01. doi: 10.1016/j.jallcom.2007.04.271.

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Publikationsdatum: 2007-10-01

Print ISSN: 0925-8388

Digitale ISSN: 1873-4669

Thema: Chemie und Pharmazie , Maschinenbau , Physik

Publiziert von Elsevier

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3

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Bactericide efficiency of a combination of chitosan gel with silver nanoparticles (2013)

Sámano-Valencia, C. ; Martínez-Castañón, G.A. ; Martínez-Martínez, R.E. ; [weitere]

Elsevier

In: Materials Letters. 2013; 106: 413-416. Published 2013 Sep 01. doi: 10.1016/j.matlet.2013.05.075.

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Publikationsdatum: 2013-09-01

Print ISSN: 0167-577X

Digitale ISSN: 1873-4979

Thema: Chemie und Pharmazie , Maschinenbau

Publiziert von Elsevier

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Pyrethroid insecticide lambda-cyhalothrin induces hepatic cytochrome P450 enzymes, oxidative stress and apoptosis in rats (2018)

Martínez, María-Aránzazu ; Ares, Irma ; Rodríguez, José-Luis ; [weitere]

Elsevier

In: Science of the Total Environment. 2018; 631-632: 1371-1382. Published 2018 Aug 01. doi: 10.1016/j.scitotenv.2018.03.030.

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Publikationsdatum: 2018-08-01

Print ISSN: 0048-9697

Digitale ISSN: 1879-1026

Thema: Energietechnik

Publiziert von Elsevier

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Evaluation of arsenic in soils and plant uptake using various chemical extraction methods in soils affected by old mining activities (2011)

Martínez-Sánchez, M.J. ; Martínez-López, S. ; García-Lorenzo, M.L. ; [weitere]

Elsevier

In: Geoderma. 2011; 160(3-4): 535-541. Published 2011 Jan 01. doi: 10.1016/j.geoderma.2010.11.001.

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Publikationsdatum: 2011-01-01

Print ISSN: 0016-7061

Digitale ISSN: 1872-6259

Thema: Geologie und Paläontologie , Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft

Publiziert von Elsevier

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6

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Matlab-based interface for the simultaneous acquisition of force measures and Doppler ultrasound muscular images (2013)

Ferrer-Buedo, José ; Martínez-Sober, Marcelino ; Alakhdar-Mohmara, Yasser ; [weitere]

Elsevier

In: Computer Methods and Programs in Biomedicine. 2013; 110(1): 76-81. Published 2013 Apr 01. doi: 10.1016/j.cmpb.2012.09.009.

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Publikationsdatum: 2013-04-01

Print ISSN: 0169-2607

Digitale ISSN: 1872-7565

Thema: Biologie , Medizin

Publiziert von Elsevier

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7

Digitale Medien

A spectrometer for the measurement of reflectance-difference spectra (1993)

Lastras-Martínez, L. F. ; Lastras-Martínez, A. ; Balderas-Navarro, R. E.

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 64 (1993), S. 2147-2152

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ISSN: 1089-7623

Quelle: AIP Digital Archive

Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik

Notizen: We describe a spectrometer (visible-ultraviolet photon energy range) for the measurement of reflectance-difference spectra of cubic semiconductors. The spectrometer employs a photoelastic modulator to modulate the polarization of the light incident on the sample and allows for a simple procedure to correct the measured spectra for parasitic components associated with such modulation. The instrument reported has a higher throughput than more conventional setups. To illustrate the spectrometer performance we report on reflectance-difference spectra of (001) oriented GaAs single crystals doped with silicon donors at a level of 1018/cm3.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1143952

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8

Digitale Medien

Magnetic transitions in Pr2NiO4 single crystal : The 5th Joint MMM−Intermag Conference (1991)

Obradors, X. ; Martinez, B. ; Batlle, X. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 70 (1991), S. 6329-6331

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: The magnetic properties of a stoichiometric Pr2NiO4 single crystal have been examined by means of the temperature dependence of the complex ac susceptibility and the isothermal magnetization in fields up to 200 kOe at T=4.2 K. Three separate phases have been identified and their anisotropic character has been analyzed. A collinear antiferromagnetic phase appears first between TN = 325 K and Tc1 = 115 K, where the Pr ions are polarized by an internal magnetic field. At Tc1 a first modification of the magnetic structure occurs in parallel with a structural phase transition (Bmab to P42/ncm). This magnetic transition has a first-order character and involves both the out-of-plane and the in-plane spin components (magnetic modes gx and gxcyfz, respectively). A second magnetic transition having also a first-order character is also clearly identified at Tc2 = 90 K which corresponds to a spin reorientation process (gxcyfz to cxgyaz magnetic modes). It should be noted as well that the out-of-phase component of χac shows a peak around 30 K which reflects the coexistence of both magnetic configurations in a wide temperature interval. Finally, two field-induced transitions have been observed at 4.2 K when the field is directed along the c axis. We propose that the high-field anomaly arises from a metamagnetic transition of the weak ferromagnetic component, similarly to La2CuO4.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.349958

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9

Digitale Medien

Unprecedented magnetoresistance in Cd-substituted Tl2Mn2O7 pyrochlores (2000)

Alonso, J. A. ; Velasco, P. ; Martínez-Lope, M. J. ; [weitere]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 76 (2000), S. 3274-3276

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ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Moderate pressure techniques (P=20 kbar) have been used to prepare Tl2−xCdxMn2O7 (0≤x≤0.4) pyrochlore-like materials. The x=0.2 compound has been characterized by neutron powder diffraction, magnetic, magnetotransport, and Hall measurements. This material is ferromagnetic below TC=110 K. Both electrical resistance and magnetoresistance (MR) are enhanced with respect to stoichiometric Tl2Mn2O7, due to the drastic reduction in the number of carriers (electrons) induced by hole doping. MR(0.5 T) is higher than 106% at 120 K, and MR(9 T) is 30% at room temperature. We show that hole doped derivatives of Tl2Mn2O7 are promising candidates in which to search for large bulk magnetoresistance. © 2000 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.126604

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10

Digitale Medien

Immunological and histological study of T- and B-lymphocyte activity in canine visceral leishmaniosis

Martinez-Moreno, A. ; Martinez-Cruz, M.S. ; Blanco, A. ; [weitere]

Amsterdam : Elsevier

Veterinary Parasitology 51 (1993), S. 49-59

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ISSN: 0304-4017

Schlagwort(e): Dof ; Immune response-Protozoa ; Leishmania sp.

Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Thema: Biologie , Medizin

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1016/0304-4017(93)90195-S

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