Catalogo Articoli (Spogli Riviste)

HELP
ATTENZIONE: attualmente gli articoli Current Contents (fonte ISI) a partire dall'anno 2002 sono consultabili sulla Risorsa On-Line

Le informazioni sugli articoli di fonte ISI sono coperte da copyright

La ricerca find articoli where soggetti phrase all words 'TRACE' sort by level,fasc_key/DESCEND, pagina_ini_num/ASCEND ha restituito 11986 riferimenti
Si mostrano 100 riferimenti a partire da 1
Selezionare un intervallo

Per ulteriori informazioni selezionare i riferimenti di interesse.

    1. DIAZ M; CAMBIER P; BRENDLE J; PROST R
      Functionalized clay heterostructures for reducing cadmium and lead uptake by plants in contaminated soils

      Applied clay science
    2. DE SOUSA FIGUEIREDO GOMES C; PEREIRA SILVA J
      Minerals and clay minerals in medical geology

      Applied clay science
    3. VALLON L.H.; ROPER M.
      Tripartichnus n.igen.- a new trace fossil from the Buntsandstein (Lower Triassic) and from the Solnhofen Lithographic Limestones (Upper Jurassic), Germany

      Pälaontologische Zeitschrift
    4. rogalla n.s.
      Revision of the family Pseudobigaleaidae HOARE, MAPES & YANCEY, 2002 (Mollusca;Rostroconchia)

      Pälaontologische Zeitschrift
    5. PICCARDO Giovanni B; ZANETTI Alberto; SPAGNOLO Gianluca; POGGI Eugenio
      Recent researches on melt-rock interaction in the Lanzo south peridotite

      Ofioliti
    6. ELTER Franco M; PICCARDO Giovanni B; POLINO Riccardo; ZANETTI Alberto; SPAGNOLO Gianluca; POGGI Eugenio; BALBI Pietro
      Structural and compositional features of the Mt. Musine peridotites (Lanzo massif, western Alps, Italy)

      Ofioliti
    7. CORTESOGNO Luciano; GAGGERO Laura; ZANETTI Alberto
      Rare earth and trace elements in amphiboles of oceanic gabbros (mark area, mid-atlantic ridge) at medium-to low-temperature seafloor alteration

      Ofioliti
    8. KOEPKE Jurgen; SEIDEL Eberhard
      Hornblendites within ophiolites of Crete, Greece: evidence for amphibole-rich cumulates derived from an iron-rich tholeiitic melt

      Ofioliti
    9. BORGHI A; SPIESS R
      Studying metamorphic microstructures: a brief insight on modern methodological approaches

      Periodico di Mineralogia
    10. RASS Irina
      Carbonatites derived from primary magmas with different Ca-contents: goechemical evidence

      Periodico di Mineralogia
    11. Le Bas, MJ; Subbarao, KV; Walsh, JN
      Metacarbonatite or marble? - the case of the carbonate, pyroxenite, calcite-apatite rock complex at Borra, Eastern Ghats, India

      JOURNAL OF ASIAN EARTH SCIENCES
    12. Killingbeck, KT; Hammen-Winn, SL; Vecchio, PG; Goguen, ME
      Nutrient resorption efficiency and proficiency in fronds and trophopods ofa winter-deciduous fern, Dennstaedtia punctilobula

      INTERNATIONAL JOURNAL OF PLANT SCIENCES
    13. Dalman, O; Tufekci, M; Nohut, S; Guner, S; Karabocek, S
      Spectrophotometric determination of copper in pharmaceutical and biological samples with 3-{2-[2-(2-hydroxyimino-1-methyl-propylideneamino)-ethylamino]-ethyl-imino}-butan-2-one oxime

      JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
    14. CENSI Paolo; MAZZOLA Salvatore; ALONZO Giuseppe; SAIANO Filippo; PATTI Bernardo; SPROVIERI Mario; BONANNO Angelo; SPOTO S E
      Trace element distributions in the Strait of Sicily (central Mediterranean sea). I. Evidence of rock-water interactions and pollution

      Periodico di Mineralogia
    15. MOGGI-CECCHI Vanni; CIPRIANI Curzio; ROSSI Paolo; CECCATO Daniele; RUDELLO Verardo; SOMACAL Hector
      Trace element contents and distribution maps of chalcopyrite: a micro-PIXE study

      Periodico di Mineralogia
    16. Kondratyev, KY; Varotsos, C
      Remote sensing and global tropospheric ozone observed dynamics

      INTERNATIONAL JOURNAL OF REMOTE SENSING
    17. Papayannis, A; Chourdakis, G
      The EOLE Project: a multiwavelength laser remote sensing (lidar) system for ozone and aerosol measurements in the troposphere and the lower stratosphere. Part II: Aerosol measurements over Athens, Greece

      INTERNATIONAL JOURNAL OF REMOTE SENSING
    18. Geret, F; Cosson, RP
      Induction of specific isoforms of metallothionein in mussel tissues after exposure to cadmium or mercury

      ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
    19. Takekawa, JY; Wainwright-De La Cruz, SE; Hothem, RL; Yee, J
      Relating body condition to inorganic contaminant concentrations of diving ducks wintering in coastal California

      ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
    20. Rea, AW; Lindberg, SE; Scherbatskoy, T; Keeler, GJ
      Mercury accumulation in foliage over time in two northern mixed-hardwood forests

      WATER AIR AND SOIL POLLUTION
    21. Brumbaugh, WG; Petty, JD; Huckins, JN; Manahan, SE
      Stabilized liquid membrane device (SLMD) for the passive, integrative sampling of labile metals in water

      WATER AIR AND SOIL POLLUTION
    22. Carballeira, A; Couto, JA; Fernandez, JA
      Estimation of background levels of various elements in terrestrial mosses from Galicia (NW spain)

      WATER AIR AND SOIL POLLUTION
    23. POLI Giampiero; PECCERILO Angelo; DONATI Carmelita
      Genesis of Miocene-Quaternary acid rocks from the Tuscan Magmatic Province:some implications for structure of the Apennine lithosphere

      Bollettino della Società Geologica Italiana
    24. SCHLIRF Michael; WURZBURG
      Taxonomic reassessment of Bolonia MEUNIER,1886(trace fossil)based on new material from the type area in Boulonnais,northern France

      Pälaontologische Zeitschrift
    25. Seames, WS; Sooroshian, J; Wendt, JOL
      Assessing the solubility of inorganic compounds from size-segregated coal fly ash aerosol impactor samples

      JOURNAL OF AEROSOL SCIENCE
    26. Bonnet, E; Bour, O; Odling, NE; Davy, P; Main, I; Cowie, P; Bekowitz, B
      Scaling of fracture systems in geological media

      REVIEWS OF GEOPHYSICS
    27. Karl, T; Prazeller, P; Mayr, D; Jordan, A; Rieder, J; Fall, R; Lindinger, W
      Human breath isoprene and its relation to blood cholesterol levels: new measurements and modeling

      JOURNAL OF APPLIED PHYSIOLOGY
    28. Sun, CH; Stern, RJ
      Genesis of Mariana shoshonites: Contribution of the subduction component

      JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
    29. Neal, CR
      Interior of the Moon: The presence of garnet in the primitive deep lunar mantle

      JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
    30. Huang, JH; Hu, CY; Zhou, QF; Lin, XL
      Stable isotope and trace element record of a stalagmite in Heshang Cave, Hubei and its palaeoclimatic significance

      SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES
    31. Jonsson, JA; Mathiasson, L
      Membrane extraction in analytical chemistry

      JOURNAL OF SEPARATION SCIENCE
    32. Hogenboom, AC; Niessen, WMA; Brinkman, UAT
      The role of column liquid chromatography-mass spectrometry in environmental trace-level analysis - Determination and identification of pesticides in water

      JOURNAL OF SEPARATION SCIENCE
    33. Valor, I; Perez, M; Cortada, C; Apraiz, D; Molto, JC; Font, G
      SPME of 52 pesticides and polychlorinated biphenyls: Extraction efficiencies of the SPME coatings poly(dimethylsiloxane), polyacrylate, poly(dimethylsiloxane)-divinylbenzene, carboxen-poly(dimethylsiloxane), and carbowax-divinylbenzene

      JOURNAL OF SEPARATION SCIENCE
    34. Sartori, M; Andorno, S; Rigamonti, C; Boldorini, R
      Chronic hepatitis C treated with phlebotomy alone: biochemical and histological outcome

      DIGESTIVE AND LIVER DISEASE
    35. Town, RM; van Leeuwen, HP
      Fundamental features of metal ion determination by stripping chronopotentiometry

      JOURNAL OF ELECTROANALYTICAL CHEMISTRY
    36. Garay, F
      Adsorptive square wave voltammetry of metal complexes. Effect of ligand concentration - Part I. Theory

      JOURNAL OF ELECTROANALYTICAL CHEMISTRY
    37. Garay, F; Solis, VM
      Adsorptive square wave voltammetry of metal complexes. Effect of ligand concentration - Part II. Experimental applications

      JOURNAL OF ELECTROANALYTICAL CHEMISTRY
    38. Katano, H; Senda, M
      Ion-transfer stripping voltammetry of polyoxyethylene alkyl and alkylphenyl ether surfactants at the organic-gel vertical bar water interface and itsapplication to trace analysis

      JOURNAL OF ELECTROANALYTICAL CHEMISTRY
    39. Patterson, KY; Veillon, C
      Stable isotopes of minerals as metabolic tracers in human nutrition research

      EXPERIMENTAL BIOLOGY AND MEDICINE
    40. Gallien, I; Caurant, F; Bordes, M; Bustamante, P; Miramand, P; Fernandez, B; Quellard, N; Babin, P
      Cadmium-containing granules in kidney tissue of the Atlantic white-sided dolphin (Lagenorhyncus acutus) off the Faroe Islands

      COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
    41. Rowe, CL; Hopkins, WA; Zehnder, C; Congdon, JD
      Metabolic costs incurred by crayfish (Procambarus acutus) in a trace element-polluted habitat: further evidence of similar responses among diverse taxonomic groups

      COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
    42. Barka, S; Pavillon, JF; Amiard, JC
      Influence of different essential and non-essential metals on MTLP levels in the Copepod Tigriopus brevicornis

      COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
    43. Onianwa, PC
      Roadside topsoil concentrations of lead and other heavy metals in Ibadan, Nigeria

      SOIL & SEDIMENT CONTAMINATION
    44. Koga, KT; Kelemen, PB; Shimizu, N
      Petrogenesis of the crust-mantle transition zone and the origin of lower crustal wehrlite in the Oman ophiolite

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    45. Stoll, HM; Encinar, JR; Alonso, JIG; Rosenthal, Y; Probert, I; Klaas, C
      A first look at paleotemperature prospects from Mg in coccolith carbonate:Cleaning techniques and culture measurements

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    46. Gillis, KM; Meyer, PS
      Metasomatism of oceanic gabbros by late stage melts and hydrothermal fluids: Evidence from the rare earth element composition of amphiboles

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    47. Lassiter, JC; Luhr, JF
      Osmium abundance and isotope variations in mafic Mexican volcanic rocks: Evidence for crustal contamination and constraints on the geochemical behavior of osmium during partial melting and fractional crystallization

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    48. Oxburgh, R
      Residence time of osmium in the oceans

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    49. DePaolo, DJ; Bryce, JG; Dodson, A; Shuster, DL; Kennedy, BM
      Isotopic evolution of Mauna Loa and the chemical structure of the Hawaiianplume

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    50. Bard, E
      Comparison of alkenone estimates with other paleotemperature proxies

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    51. Hochstaedter, A; Gill, J; Peters, R; Broughton, P; Holden, P; Taylor, B
      Across-arc geochemical trends in the Izu-Bonin arc: Contributions from thesubducting slab

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    52. McLennan, SM
      Relationships between the trace element composition of sedimentary rocks and upper continental crust

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    53. Peucker-Ehrenbrink, B; Jahn, BM
      Rhenium-osmium isotope systematics and platinum group element concentrations: Loess and the upper continental crust

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    54. van Westrenen, W; Blundy, JD; Wood, BJ
      High field strength element/rare earth element fractionation during partial melting in the presence of garnet: Implications for identification of mantle heterogeneities

      GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
    55. Baker, PJ; O'Shaughnessy, PJ
      Expression of prostaglandin D synthetase during development in the mouse testis

      REPRODUCTION
    56. Chen, JF; Yan, J; Xie, Z; Xu, X; Xing, F
      Nd and Sr isotopic compositions of igneous rocks from the lower Yangtze region in eastern China: Constraints on sources

      PHYSICS AND CHEMISTRY OF THE EARTH PART A-SOLID EARTH AND GEODESY
    57. Guo, F; Fan, WM; Wang, YJ; Lin, G
      Late Mesozoic mafic intrusive complexes in North China Block: constraints on the nature of subcontinental lithospheric mantle

      PHYSICS AND CHEMISTRY OF THE EARTH PART A-SOLID EARTH AND GEODESY
    58. Fabbri, D; Locatelli, C; Snape, CE; Tarabusi, S
      Sulfur speciation in mercury-contaminated sediments of a coastal lagoon: the role of elemental sulfur

      JOURNAL OF ENVIRONMENTAL MONITORING
    59. Gauthreaux, K; Hardaway, C; Falgoust, T; Noble, CO; Sneddon, J; Beck, MJ; Beck, JN
      Manganese species migration in soil at the Sabine National Wildlife Refuge, Louisiana

      JOURNAL OF ENVIRONMENTAL MONITORING
    60. Olsson, IM; Jonsson, S; Oskarsson, A
      Cadmium and zinc in kidney, liver, muscle and mammary tissue from dairy cows in conventional and organic farming

      JOURNAL OF ENVIRONMENTAL MONITORING
    61. Moreda-Pineiro, A; Marcos, A; Fisher, A; Hill, SJ
      Evaluation of the effect of data pre-treatment procedures on classical pattern recognition and principal components analysis: a case study for the geographical classification of tea

      JOURNAL OF ENVIRONMENTAL MONITORING
    62. Davidson, CM; Delevoye, G
      Effect of ultrasonic agitation on the release of copper, iron, manganese and zinc from soil and sediment using the BCR three-stage sequential extraction

      JOURNAL OF ENVIRONMENTAL MONITORING
    63. van Veen, E; Gardner, M; Comber, S
      Temporal variation of copper and zinc complexation capacity in the Humber estuary

      JOURNAL OF ENVIRONMENTAL MONITORING
    64. Ramesh, A; Vijayalakshmi, A
      Monitoring of allethrin, deltamethrin, esbiothrin, prallethrin and transfluthrin in air during the use of household mosquito repellents

      JOURNAL OF ENVIRONMENTAL MONITORING
    65. Scancar, J; Milacic, R; Strazar, M; Burica, O; Bukovec, P
      Environmentally safe sewage sludge disposal: The impact of liming on the behaviour of Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn

      JOURNAL OF ENVIRONMENTAL MONITORING
    66. Pueyo, M; Rauret, G; Luck, D; Yli-Halla, M; Muntau, H; Quevauville, P; Lopez-Sanchez, JF
      Certification of the extractable contents of Cd, Cr, Cu, Ni, Pb and Zn in a freshwater sediment following a collaboratively tested and optimised three-step sequential extraction procedure

      JOURNAL OF ENVIRONMENTAL MONITORING
    67. Sanei, H; Goodarzi, F; Van der Flier-Keller, E
      Historical variation of elements with respect to different geochemical fractions in recent sediments from Pigeon Lake, Alberta, Canada?

      JOURNAL OF ENVIRONMENTAL MONITORING
    68. Le Roux, SM; Turner, A; Millward, GE; Ebdon, L; Appriou, P
      Partitioning of mercury onto suspended sediments in estuaries

      JOURNAL OF ENVIRONMENTAL MONITORING
    69. Hursthouse, AS
      The relevance of speciation in the remediation of soils and sediments contaminated by metallic elements - an overview and examples from Central Scotland, UK

      JOURNAL OF ENVIRONMENTAL MONITORING
    70. Townsend, AT; O'Sullivan, J; Featherstone, AM; Butler, ECV; Mackey, DJ
      The application of ICP-SMS, GF-AAS and HG-AFS to the analysis of water andsediment samples from a temperate stratified estuary

      JOURNAL OF ENVIRONMENTAL MONITORING
    71. Billon, G; Ouddane, B; Laureyns, J; Boughriet, A
      Chemistry of metal sulfides in anoxic sediments

      PHYSICAL CHEMISTRY CHEMICAL PHYSICS
    72. Stepien, C; Catoire, V; Amelynck, C; Labonnette, D; Schoon, N; Poulet, G; Arijs, E
      Reactions of CF3O- core ions with ClONO2 and H2O

      PHYSICAL CHEMISTRY CHEMICAL PHYSICS
    73. Mazur, S; Aleksandrowski, P
      The Tepla(?)/Saxothuringian suture in the Karkonosze-Izera massif, westernSudetes, central European Variscides

      INTERNATIONAL JOURNAL OF EARTH SCIENCES
    74. Meschede, M; Barckhausen, U
      The relationship of the Cocos and Carnegie ridges: age constraints from paleogeographic reconstructions

      INTERNATIONAL JOURNAL OF EARTH SCIENCES
    75. Wilcke, W; Krauss, M; Kobza, J; Zech, W
      Quantification of anthropogenic lead in Slovak forest and arable soils along a deposition gradient with stable lead isotope ratios

      JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE
    76. Wang, CT; Chang, WT
      Arterial tissue of arsenic, selenium and iron in Blackfoot disease patients

      CLINICAL CHEMISTRY AND LABORATORY MEDICINE
    77. Carrington, ME; Chen, WF; Kobes, R
      Spontaneous scale symmetry breaking in 2+1-dimensional QED at both zero and finite temperature

      EUROPEAN PHYSICAL JOURNAL C
    78. Ghosh, A
      Dynamical properties of three component Fibonacci quasicrystal

      EUROPEAN PHYSICAL JOURNAL B
    79. Mertens, S; Nijs, I; Heuer, M; Kockelbergh, F; Beyens, L; Van Kerckvoorde, A; Impens, I
      Influence of high temperature on end-of-season tundra CO2 exchange

      ECOSYSTEMS
    80. Tsiklauri, D; Nakariakov, VM
      Wide-spectrum slow magnetoacoustic waves in coronal loops

      ASTRONOMY & ASTROPHYSICS
    81. Roussev, I; Galsgaard, K; Erdelyi, R; Doyle, JG
      Modelling of explosive events in the solar transition region in a 2D environment - II. Various MHD experiments

      ASTRONOMY & ASTROPHYSICS
    82. Damanik, D; Ghez, JM; Raymond, L
      A palindromic half-line criterion for absence of eigenvalues and applications to substitution Hamiltonians

      ANNALES HENRI POINCARE
    83. Grau, C; Polo, MD; Yago, E; Gual, A; Escera, C
      Auditory sensory memory as indicated by mismatch negativity in chronic alcoholism

      CLINICAL NEUROPHYSIOLOGY
    84. Turnbull, JP; Loparo, KA; Johnson, MW; Scher, MS
      Automated detection of trace alternant during sleep in healthy full-term neonates using discrete wavelet transform

      CLINICAL NEUROPHYSIOLOGY
    85. Smith, D; Diskin, AM; Ji, YF; Spanel, P
      Concurrent use of H3O+, NO+, and O-2(+) precursor ions for the detection and quantification of diverse trace gases in the presence of air and breath by selected ion-flow tube mass spectrometry

      INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
    86. McLean, JA; Becker, JS; Boulyga, SF; Hans-Joachim, D; Montaser, A
      Ultratrace and isotopic analysis of long-lived radionuclides by double-focusing sector field inductively coupled plasma mass spectrometry using direct liquid sample introduction

      INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
    87. Kilburn, MR; Hinton, RW
      Relative ion yields for SIMS analysis of trace elements in metallic Fe, Fe-Si alloy, and FeSi

      INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
    88. Amelynck, C; Stepien, C; Schoon, N; Catoire, V; Labonnette, D; Arijs, E; Poulet, G
      Gas phase reactions of negative ions with ClONO2

      INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
    89. Song, Q; Putcha, L
      Quantitation of promethazine and metabolites in urine samples using on-line solid-phase extraction and column-switching

      JOURNAL OF CHROMATOGRAPHY B
    90. Muxlow, AM; Fowles, S; Russell, P
      Automated high-performance liquid chromatography method for the determination of rosiglitazone in human plasma

      JOURNAL OF CHROMATOGRAPHY B
    91. Marrubini, G; Hogendoorn, EA; Coccini, T; Manzo, L
      Improved coupled column liquid chromatographic method for high-speed direct analysis of urinary trans,trans-muconic acid, as a biomarker of exposure to benzene

      JOURNAL OF CHROMATOGRAPHY B
    92. Prange, RE; Zaitsev, O; Narevich, R
      Trace formulas and Bogomolny's transfer operator

      PHYSICA E
    93. Zhou, GD; Randerath, E; Randerath, K
      Effects of dietary transition metals on oxidative DNA lesions in neonatal rats

      MUTATION RESEARCH-FUNDAMENTAL AND MOLECULAR MECHANISMS OF MUTAGENESIS
    94. Ames, BN
      DNA damage from micronutrient deficiencies is likely to be a major cause of cancer

      MUTATION RESEARCH-FUNDAMENTAL AND MOLECULAR MECHANISMS OF MUTAGENESIS
    95. Hellebrand, HJ; Kalk, WD
      Emission of carbon monoxide during composting of dung and green waste

      NUTRIENT CYCLING IN AGROECOSYSTEMS
    96. Smith, P; Goulding, KW; Smith, KA; Powlson, DS; Smith, JU; Falloon, P; Coleman, K
      Enhancing the carbon sink in European agricultural soils: including trace gas fluxes in estimates of carbon mitigation potential

      NUTRIENT CYCLING IN AGROECOSYSTEMS
    97. Jabbari, A; Esmaeili, M; Shamsipur, M
      Selective transport of mercury as HgCl42- through a bulk liquid membrane using K+-dicyclohexyl-18-crown-6 as carrier

      SEPARATION AND PURIFICATION TECHNOLOGY
    98. Bai, CY; Kennett, BLN
      Phase identification and attribute analysis of broadband seismograms at far-regional distances

      JOURNAL OF SEISMOLOGY
    99. Gundersen, P; Steinnes, E
      Influence of temporal variations in river discharge, pH, alkalinity and Caon the speciation and concentration of heavy metals in some mining polluted rivers

      AQUATIC GEOCHEMISTRY
    100. Muller, B; Duffek, A
      Similar adsorption parameters for trace metals with different aquatic particles

      AQUATIC GEOCHEMISTRY


ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/10/20 alle ore 14:57:51