Search Results - (Author, Cooperation:L. Perez)
-
1Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-09-08Publisher: Institute of Physics (IOP)Print ISSN: 1755-1307Electronic ISSN: 1755-1315Topics: GeographyGeosciencesPhysicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-05-11Publisher: American Heart Association (AHA)Print ISSN: 1942-325XElectronic ISSN: 1942-3268Topics: MedicineKeywords: Electrophysiology, Epidemiology, Genetic, Association StudiesPublished by: -
3Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-01-12Publisher: American Heart Association (AHA)Print ISSN: 1942-325XElectronic ISSN: 1942-3268Topics: MedicineKeywords: Electrophysiology, Genetic, Association StudiesPublished by: -
4Latest Papers from Table of Contents or Articles in PressHouzet, L., Perez-Losada, M., Matusali, G., Deleage, C., Dereuddre-Bosquet, N., Satie, A.-P., Aubry, F., Becker, E., Jegou, B., Le Grand, R., Keele, B. F., Crandall, K. A., Dejucq-Rainsford, N.
The American Society for Microbiology (ASM)
Published 2018Staff ViewPublication Date: 2018-06-30Publisher: The American Society for Microbiology (ASM)Print ISSN: 0022-538XElectronic ISSN: 1098-5514Topics: MedicinePublished by: -
5Latest Papers from Table of Contents or Articles in PressD. Corti ; J. Misasi ; S. Mulangu ; D. A. Stanley ; M. Kanekiyo ; S. Wollen ; A. Ploquin ; N. A. Doria-Rose ; R. P. Staupe ; M. Bailey ; W. Shi ; M. Choe ; H. Marcus ; E. A. Thompson ; A. Cagigi ; C. Silacci ; B. Fernandez-Rodriguez ; L. Perez ; F. Sallusto ; F. Vanzetta ; G. Agatic ; E. Cameroni ; N. Kisalu ; I. Gordon ; J. E. Ledgerwood ; J. R. Mascola ; B. S. Graham ; J. J. Muyembe-Tamfun ; J. C. Trefry ; A. Lanzavecchia ; N. J. Sullivan
American Association for the Advancement of Science (AAAS)
Published 2016Staff ViewPublication Date: 2016-02-27Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Adult ; Animals ; Antibodies, Monoclonal/*administration & dosage/immunology/isolation & ; purification ; Antibodies, Neutralizing/*administration & dosage/immunology/isolation & ; Antibodies, Viral/*administration & dosage/immunology/isolation & purification ; Clinical Trials as Topic ; Disease Outbreaks ; Ebolavirus/*immunology ; Female ; Hemorrhagic Fever, Ebola/epidemiology/*prevention & control ; Humans ; Macaca ; Male ; Molecular Sequence Data ; SurvivorsPublished by: -
6Latest Papers from Table of Contents or Articles in PressTrung T. Nguyen, Derong Ding, William R. Wolter, Rocio L. Pérez, Matthew M. Champion, Kiran V. Mahasenan, Dusan Hesek, Mijoon Lee, Valerie A. Schroeder, Jeffrey I. Jones, Elena Lastochkin, Margaret K. Rose, Charles E. Peterson, Mark A. Suckow, Shahriar Mobashery, Mayland Chang
American Chemical Society (ACS)
Published 2018Staff ViewPublication Date: 2018-09-28Publisher: American Chemical Society (ACS)Topics: Chemistry and PharmacologyPublished by: -
7Latest Papers from Table of Contents or Articles in PressS. Sawcer ; G. Hellenthal ; M. Pirinen ; C. C. Spencer ; N. A. Patsopoulos ; L. Moutsianas ; A. Dilthey ; Z. Su ; C. Freeman ; S. E. Hunt ; S. Edkins ; E. Gray ; D. R. Booth ; S. C. Potter ; A. Goris ; G. Band ; A. B. Oturai ; A. Strange ; J. Saarela ; C. Bellenguez ; B. Fontaine ; M. Gillman ; B. Hemmer ; R. Gwilliam ; F. Zipp ; A. Jayakumar ; R. Martin ; S. Leslie ; S. Hawkins ; E. Giannoulatou ; S. D'Alfonso ; H. Blackburn ; F. Martinelli Boneschi ; J. Liddle ; H. F. Harbo ; M. L. Perez ; A. Spurkland ; M. J. Waller ; M. P. Mycko ; M. Ricketts ; M. Comabella ; N. Hammond ; I. Kockum ; O. T. McCann ; M. Ban ; P. Whittaker ; A. Kemppinen ; P. Weston ; C. Hawkins ; S. Widaa ; J. Zajicek ; S. Dronov ; N. Robertson ; S. J. Bumpstead ; L. F. Barcellos ; R. Ravindrarajah ; R. Abraham ; L. Alfredsson ; K. Ardlie ; C. Aubin ; A. Baker ; K. Baker ; S. E. Baranzini ; L. Bergamaschi ; R. Bergamaschi ; A. Bernstein ; A. Berthele ; M. Boggild ; J. P. Bradfield ; D. Brassat ; S. A. Broadley ; D. Buck ; H. Butzkueven ; R. Capra ; W. M. Carroll ; P. Cavalla ; E. G. Celius ; S. Cepok ; R. Chiavacci ; F. Clerget-Darpoux ; K. Clysters ; G. Comi ; M. Cossburn ; I. Cournu-Rebeix ; M. B. Cox ; W. Cozen ; B. A. Cree ; A. H. Cross ; D. Cusi ; M. J. Daly ; E. Davis ; P. I. de Bakker ; M. Debouverie ; B. D'Hooghe M ; K. Dixon ; R. Dobosi ; B. Dubois ; D. Ellinghaus ; I. Elovaara ; F. Esposito ; C. Fontenille ; S. Foote ; A. Franke ; D. Galimberti ; A. Ghezzi ; J. Glessner ; R. Gomez ; O. Gout ; C. Graham ; S. F. Grant ; F. R. Guerini ; H. Hakonarson ; P. Hall ; A. Hamsten ; H. P. Hartung ; R. N. Heard ; S. Heath ; J. Hobart ; M. Hoshi ; C. Infante-Duarte ; G. Ingram ; W. Ingram ; T. Islam ; M. Jagodic ; M. Kabesch ; A. G. Kermode ; T. J. Kilpatrick ; C. Kim ; N. Klopp ; K. Koivisto ; M. Larsson ; M. Lathrop ; J. S. Lechner-Scott ; M. A. Leone ; V. Leppa ; U. Liljedahl ; I. L. Bomfim ; R. R. Lincoln ; J. Link ; J. Liu ; A. R. Lorentzen ; S. Lupoli ; F. Macciardi ; T. Mack ; M. Marriott ; V. Martinelli ; D. Mason ; J. L. McCauley ; F. Mentch ; I. L. Mero ; T. Mihalova ; X. Montalban ; J. Mottershead ; K. M. Myhr ; P. Naldi ; W. Ollier ; A. Page ; A. Palotie ; J. Pelletier ; L. Piccio ; T. Pickersgill ; F. Piehl ; S. Pobywajlo ; H. L. Quach ; P. P. Ramsay ; M. Reunanen ; R. Reynolds ; J. D. Rioux ; M. Rodegher ; S. Roesner ; J. P. Rubio ; I. M. Ruckert ; M. Salvetti ; E. Salvi ; A. Santaniello ; C. A. Schaefer ; S. Schreiber ; C. Schulze ; R. J. Scott ; F. Sellebjerg ; K. W. Selmaj ; D. Sexton ; L. Shen ; B. Simms-Acuna ; S. Skidmore ; P. M. Sleiman ; C. Smestad ; P. S. Sorensen ; H. B. Sondergaard ; J. Stankovich ; R. C. Strange ; A. M. Sulonen ; E. Sundqvist ; A. C. Syvanen ; F. Taddeo ; B. Taylor ; J. M. Blackwell ; P. Tienari ; E. Bramon ; A. Tourbah ; M. A. Brown ; E. Tronczynska ; J. P. Casas ; N. Tubridy ; A. Corvin ; J. Vickery ; J. Jankowski ; P. Villoslada ; H. S. Markus ; K. Wang ; C. G. Mathew ; J. Wason ; C. N. Palmer ; H. E. Wichmann ; R. Plomin ; E. Willoughby ; A. Rautanen ; J. Winkelmann ; M. Wittig ; R. C. Trembath ; J. Yaouanq ; A. C. Viswanathan ; H. Zhang ; N. W. Wood ; R. Zuvich ; P. Deloukas ; C. Langford ; A. Duncanson ; J. R. Oksenberg ; M. A. Pericak-Vance ; J. L. Haines ; T. Olsson ; J. Hillert ; A. J. Ivinson ; P. L. De Jager ; L. Peltonen ; G. J. Stewart ; D. A. Hafler ; S. L. Hauser ; G. McVean ; P. Donnelly ; A. Compston
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-08-13Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Alleles ; Cell Differentiation/immunology ; Europe/ethnology ; Genetic Predisposition to Disease/*genetics ; Genome, Human/genetics ; Genome-Wide Association Study ; HLA-A Antigens/genetics ; HLA-DR Antigens/genetics ; HLA-DRB1 Chains ; Humans ; Immunity, Cellular/genetics/*immunology ; Major Histocompatibility Complex/genetics ; Multiple Sclerosis/*genetics/*immunology ; Polymorphism, Single Nucleotide/genetics ; Sample Size ; T-Lymphocytes, Helper-Inducer/cytology/immunologyPublished by: -
8Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2011-10-08Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Complement Factor H/*metabolism ; Epitopes/*metabolism ; Female ; Humans ; Male ; Malondialdehyde/*metabolism ; *Oxidative StressPublished by: -
9Latest Papers from Table of Contents or Articles in PressB. R. Ksander ; P. E. Kolovou ; B. J. Wilson ; K. R. Saab ; Q. Guo ; J. Ma ; S. P. McGuire ; M. S. Gregory ; W. J. Vincent ; V. L. Perez ; F. Cruz-Guilloty ; W. W. Kao ; M. K. Call ; B. A. Tucker ; Q. Zhan ; G. F. Murphy ; K. L. Lathrop ; C. Alt ; L. J. Mortensen ; C. P. Lin ; J. D. Zieske ; M. H. Frank ; N. Y. Frank
Nature Publishing Group (NPG)
Published 2014Staff ViewPublication Date: 2014-07-18Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: ATP-Binding Cassette Transporters/deficiency/*metabolism ; Animals ; Apoptosis ; Biomarkers/metabolism ; Cell Differentiation ; Cell Proliferation ; Female ; Humans ; Limbus Corneae/*cytology/*physiology ; Male ; Mice ; Mice, Knockout ; Molecular Sequence Data ; P-Glycoprotein/deficiency/*metabolism ; *Regeneration ; Stem Cell Transplantation ; Stem Cells/cytology/*metabolism ; Transcription Factors/metabolism ; Tumor Suppressor Proteins/metabolism ; *Wound HealingPublished by: -
10Latest Papers from Table of Contents or Articles in PressD. Corti ; S. Bianchi ; F. Vanzetta ; A. Minola ; L. Perez ; G. Agatic ; B. Guarino ; C. Silacci ; J. Marcandalli ; B. J. Marsland ; A. Piralla ; E. Percivalle ; F. Sallusto ; F. Baldanti ; A. Lanzavecchia
Nature Publishing Group (NPG)
Published 2013Staff ViewPublication Date: 2013-08-21Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/chemistry/*immunology/isolation & purification/therapeutic ; use ; Antibodies, Neutralizing/chemistry/*immunology/isolation & ; purification/therapeutic use ; Antibody Specificity/immunology ; Cattle ; Cross Reactions/*immunology ; Epitopes/immunology ; Humans ; Immunoglobulin Light Chains/chemistry/immunology ; Immunoglobulin Variable Region/chemistry/immunology ; Metapneumovirus/immunology ; Mice ; Models, Molecular ; Molecular Sequence Data ; Murine pneumonia virus/immunology ; Paramyxoviridae/*classification/*immunology ; Paramyxoviridae Infections/*immunology/prevention & control/therapy/*virology ; Pneumovirus Infections/immunology/prevention & control/virology ; Respiratory Syncytial Virus Infections/immunology/prevention & ; control/therapy/virology ; Respiratory Syncytial Virus, Bovine/immunology ; Respiratory Syncytial Virus, Human/immunology ; Viral Fusion Proteins/chemistry/immunology ; Viral Vaccines/chemistry/immunologyPublished by: -
11Articles: DFG German National LicensesVelazquez, Jose L. Perez ; Han, Dan ; Carlen, Peter L.
Oxford, UK : Blackwell Publishing Ltd
Published 1997Staff ViewISSN: 1460-9568Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Increasing experimental evidence indicates that gap junctions can be modulated by neurotransmitters, in particular dopamine. To examine possible modulation of gap junctional communication in the rat hippocampus by neurotransmitters, we studied dye coupling and electrotonic transmission in the CAI area in the presence of carbachol, a cholinergic agonist, and dopamine agonists. Carbachol markedly reduced dye coupling and the frequency of electrotonic potentials (spikelets). Spikelet amplitudes were decreased in the presence of carbachol. These effects were reversed by the cholinergic antagonist atropine, suggesting a muscarinic action of carbachol on gap junctional function. The non-specific dopamine agonist apomorphine, and the specific D1 receptor agonist SKF 38393, reduced dye coupling between pyramidal cells. Spikelet frequency was also decreased in the presence of dopamine agonists, but less than with carbachol. The specific D1 receptor antagonist, SCH 23390, reversed the effects of both dopamine agonists. These observations indicate that cholinergic and dopaminergic transmission can affect electrical and chemical (dye coupling) communication through gap junctions, and could therefore alter properties of neuronal assemblies, in addition to their effects on intrinsic membrane properties.Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 1460-9568Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: We studied the contribution of GABAergic (γ-aminobutyric acid) neurotransmission to epileptiform activity using the horizontal hippocampal rat brain slice. Seizure-like (ictal) activity was evoked in the CA1 area by applying high-frequency trains (80 Hz for 2 s) to the Schaffer collaterals. Whole-cell recordings from stratum oriens-alveus interneurons revealed burst firing with superimposed high-frequency spiking which was synchronous with field events and pyramidal cell firing during ictal activity. On the other hand, interictal interneuronal bursts were synchronous with large-amplitude inhibitory postsynaptic potentials (IPSPs) in pyramidal cells. Excitatory and inhibitory postsynaptic potentials were simultaneously received by pyramidal neurons during the ictal afterdischarge, and were synchronous with interneuronal bursting and field potential ictal events. The GABAA receptor antagonist bicuculline greatly reduced the duration of the ictal activity in the CA1 layer, and evoked rhythmic interictal synchronous bursting of interneurons and pyramidal cells. With intact GABAergic transmission, interictal field potential events were synchronous with large amplitude IPSPs (9.8 ± 2.4 mV) in CA1 pyramidal cells, and with interneuronal bursting. Simultaneous dual recordings revealed synchronous IPSPs received by widely separated pyramidal neurons during ictal and interictal periods, indicative of widespread interneuronal firing synchrony throughout the hippocampus. CA3 pyramidal neurons fired in synchrony with interictal field potential events recorded in the CA1 layer, and glutamate receptor antagonists abolished interictal interneuronal firing and synchronous large amplitude IPSPs received by CA1 pyramidal cells. These observations provide evidence that the interneuronal network may be entrained in hyperexcitable states by GABAergic and glutamatergic mechanisms.Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesFrantseva, Marina V. ; Velazquez, Jose L. Perez ; Hwang, Paul A. ; Carlen, Peter L.
Oxford, UK : Blackwell Science Ltd
Published 2000Staff ViewISSN: 1460-9568Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Free radical (FR) production, a major step in calcium-dependent neurodegeneration, has been linked to the generation of epileptiform activity and seizure-induced cell death. However, direct evidence of FR production in neurons during seizures has never been presented. Using hippocampal cultured slices we demonstrate that FRs are produced in CA3 but not CA1 pyramidal neurons during the rhythmic synchronous activity induced by the GABAA receptor antagonist bicuculline. The production of FRs (measured as changes in the fluorescence emission of dihydrorhodamine 123) was correlated with an increase in the baseline levels of intracellular calcium ([Ca2+]i) estimated by fluo-3 injected into individual neurons via a patch pipette. [Ca2+]i increased during spike bursting and returned to baseline levels after the burst termination in CA1, but not in CA3, pyramidal neurons where ‘interburst’ calcium concentrations progressively increased. Measurement of cell death, performed with propidium iodide 48 h after a 30-min exposure to bicuculline, revealed most prominent degeneration of pyramidal neurons in the CA3 pyramidal layer. The FR scavengers vitamin E and glutathione significantly reduced the seizure-induced neurodegeneration without supressing spontaneous epileptiform activity. These observations indicate that FR overproduction is related to seizure-induced neuronal death.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesVelazquez, J. L. Perez ; Khosravani, Houman ; Lozano, Andres ; Bardakjian, Berj. L. ; Carlen, Peter L. ; Wennberg, Richard
Oxford, UK : Blackwell Science Ltd
Published 1999Staff ViewISSN: 1460-9568Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: A rigorous characterization of the dynamic regimes underlying human seizures is needed to understand, and possibly control, the transition to seizure. Intra- or extracranial brain electrical activity was recorded in five patients with partial epilepsy, and the interictal and ictal activity analysed to determine the dynamics of seizures. We constructed first-return one-dimensional maps by fitting the scatter plots of interpeak intervals. The features of the mapping indicated that type III intermittency is the dynamic charateristic of the ictal events. This was confirmed using histograms of the durations of the regular phases during seizures. The intermittent regime explains the abrupt transitions observed during ictal events in terms of transient stabilization of the unstable steady state.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesAlvarez-Lajonchère, L. ; Sánchez, L. Pérez ; Molejón, O. G. Hernández ; Gómez, E. Torres
Oxford, UK : Blackwell Publishing Ltd
Published 1996Staff ViewISSN: 1749-7345Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Abstract.— Two spawning and larval rearing trials with striped patao Eugerres brasilianus were conducted at Tunas de Zaza, Cuba, to develop a method for experimental-scale mass production of juvenile fish. Mature striped patao were captured from coastal lagoons in September 1988 and January 1989. Sexually mature females and males were induced to spawn by treatment with human chorionic gonadotropin (HCG). After spawning, eggs were collected and placed in 1.2-m3 cylindroconical fiberglass incubators at densities of 150 and 200 eggs/L. About 1 h before hatching, eggs were transferred to 5–m3 concrete tanks. Larvae were fed a mixture of marine microalgae, rotifers, copepods, and Artemia nauplii; artificial food was supplied at 30 d post-hatch as a shrimp diet with 25% protein and 0.1–0.4 mm particles. Fourteen of 20 females spawned after 2 or 3 HCG injections (total dose = 6–10 IU/g body weight). Fecundity was 467–2,167 eggs/g body weight. Egg incubation time in seawater (38–39 ppt salinity) was 15–17 h at 29–30 C and 21–23 h at 25–26 C, with 98–100% hatching rate. The oil droplet and yolk sac were consumed by 3 to 5 d post-hatch and first food (rotifers) was eaten during second day. High larval mortalities began after the first month. Growth in 39- ppt seawater was faster (0.41 ± 0.01 md/d) at 29.1 ± 0.3 C than at 25.2 ± 0.2 C (0.27 ± 0.008 mm/d). Overall survival was 6–12.5% with tinal densities of 5–10 juveniles/L after 48–60 d. A total of 132,000 juveniles was harvested from the two rearing cycles.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesCarro, L. Perez ; Palazuelos, C. Manuel ; Llata, J. I. Echevarria ; Garcia, M. Sumillera ; Gracia, C. Sune
Springer
Published 1993Staff ViewISSN: 1432-5195Source: Springer Online Journal Archives 1860-2000Topics: MedicineDescription / Table of Contents: Résumé L'imagerie par résonance magnétique (IRM) a été utilisée pour aider au diagnostic d'une tuméfaction palpable au niveau du muscle grand fessier. La biopsie a montré qu'il s'agissait d'un tératome bénin. Nous n'avons pas trouvé de cas identique publié, comportant un examen par IRM.Notes: Summary Magnetic resonance imaging (MRI) was used to help in the diagnosis of a teratoma in the gluteus maximus region. As far as we know no case of this kind of tumour has been investigated with MRI examination.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1432-5195Source: Springer Online Journal Archives 1860-2000Topics: MedicineDescription / Table of Contents: Résumé Un cas de fracture de l'apophyse styloide ou syndrome de Eagle traumatique est rapporté. Cette référence ajoute un nouveau cas de cette étrange maladie et un diagnostic différentiel encore jamais publié.Notes: Summary A case of fracture of the styloid process of the temporal bone (Eagle's syndrome) is reported. The differential diagnosis is discussed.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 1573-7381Keywords: Synaptic vesicle ; synaptic degeneration ; lateral geniculate nucleusSource: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Summary The synaptic vesicles of optic nerve endings in the lateral geniculate nucleus of cats and monkeys were measured following eye enucleation. A notable increase in the mean vesicle volume was found in both species. Increments in the values of standard deviation were also noted. Comparison of the results obtained indicate that the changes are faster in cats than in monkeys. An explanation for the difference is proposed.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 1572-8943Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyDescription / Table of Contents: Zusammenfassung Es wurden vergleichbare Änderungen an thermischen Kurven (DTA, TG) von Pyrophyllit vor und nach Zerkleinerung untersucht, um quantitative Angaben über die Änderung dieses Schichtensilikates zu erhalten. Durch die mechanische, trockene Zerkleinerung von Pyrophyllit kam es gegenüber dem Ausgangsmaterial zu einer Abnahme der Partikelgröße. Durch diesen Umstand wird das thermische Verhalten des erhaltenen Produktes stark beeinflußt. Bis zum Erreichen der mechanochemischen Grenze der Minderung der Partikelgröße nehmen in den TG-Kurven die Temperaturen für die Massenverluste ab, und die endothermen DTA-Effekte werden zu niedrigeren Temperaturen verschoben. Weiteres Zerkleinern führt zu einer Störung der 2∶1-Aluminosilikatstruktur, was einen exothermen DTA-Effekt verursacht, sowie auch zu Reagglomeration des sehr amorphen und aktivierten Materiales, begleitet von einer Minderung des spezifischen Oberfläche.Notes: Abstract The differences of the thermal curves (DTA-TG) of pyrophyllite measured before and after grinding have been studied to obtain quantitative information about the alteration of the structure of this layer silicate. The mechanical treatment by dry grinding of pyrophyllite produces a decrease in the particle size of the original material. This strongly influences the thermal behaviour of weight losses on the TG curves decrease, and the endothermic DTA effects shift to lower temperatures, until the mechanochemical limit in particle size reduction is reached. Further grinding produces a disruption of the 2∶1 aluminosilicate structure giving an exothermic DTA effect, and also reagglomeration processes of the amorphous and activated material accompanied by a decrease in specific surface area.Type of Medium: Electronic ResourceURL: -
20Latest Papers from Table of Contents or Articles in PressGedeon, P. C., Schaller, T. H., Chitneni, S. K., Choi, B. D., Kuan, C.-T., Suryadevara, C. M., Snyder, D. J., Schmittling, R. J., Szafranski, S. E., Cui, X., Healy, P. N., Herndon, J. E., McLendon, R. E., Keir, S. T., Archer, G. E., Reap, E. A., Sanchez-Perez, L., Bigner, D. D., Sampson, J. H.
The American Association for Cancer Research (AACR)
Published 2018Staff ViewPublication Date: 2018-08-02Publisher: The American Association for Cancer Research (AACR)Print ISSN: 1078-0432Electronic ISSN: 1557-3265Topics: MedicinePublished by: