UNICA IRIS Institutional Research Information System

COLUMBU, STEFANO
 Distribuzione geografica
Salva come PNG Salva come JPEG
Continente #
EU - Europa 192.633
NA - Nord America 5.718
AS - Asia 1.925
SA - Sud America 227
OC - Oceania 79
AF - Africa 57
Continente sconosciuto - Info sul continente non disponibili 3
Totale 200.642
Salva come PNG Salva come JPEG
Nazione #
IT - Italia 190.363
US - Stati Uniti d'America 5.609
CN - Cina 864
SG - Singapore 687
UA - Ucraina 612
SE - Svezia 520
DE - Germania 231
GB - Regno Unito 206
FI - Finlandia 171
BR - Brasile 163
FR - Francia 100
VN - Vietnam 81
PT - Portogallo 74
AU - Australia 73
CA - Canada 69
ES - Italia 65
TR - Turchia 61
NL - Olanda 51
IN - India 45
BE - Belgio 44
PE - Perù 36
MX - Messico 34
PL - Polonia 29
RU - Federazione Russa 25
KR - Corea 24
GR - Grecia 23
HK - Hong Kong 22
JP - Giappone 22
CZ - Repubblica Ceca 20
PH - Filippine 18
IR - Iran 14
AT - Austria 13
MA - Marocco 13
NO - Norvegia 12
PK - Pakistan 12
RO - Romania 12
DZ - Algeria 10
CH - Svizzera 9
HR - Croazia 9
MY - Malesia 9
UZ - Uzbekistan 9
ID - Indonesia 8
IL - Israele 8
DK - Danimarca 7
EC - Ecuador 7
IE - Irlanda 7
TN - Tunisia 7
CL - Cile 6
CO - Colombia 6
EG - Egitto 6
MT - Malta 6
NZ - Nuova Zelanda 6
ZA - Sudafrica 6
AE - Emirati Arabi Uniti 5
AZ - Azerbaigian 5
IQ - Iraq 5
NG - Nigeria 5
TW - Taiwan 5
AR - Argentina 4
BD - Bangladesh 4
EE - Estonia 4
ET - Etiopia 4
TH - Thailandia 4
EU - Europa 3
HU - Ungheria 3
KG - Kirghizistan 3
LV - Lettonia 3
MD - Moldavia 3
AL - Albania 2
AM - Armenia 2
BO - Bolivia 2
CY - Cipro 2
KE - Kenya 2
PA - Panama 2
RS - Serbia 2
SA - Arabia Saudita 2
SI - Slovenia 2
SK - Slovacchia (Repubblica Slovacca) 2
VE - Venezuela 2
AO - Angola 1
CI - Costa d'Avorio 1
DO - Repubblica Dominicana 1
GT - Guatemala 1
HN - Honduras 1
IS - Islanda 1
JO - Giordania 1
LA - Repubblica Popolare Democratica del Laos 1
LU - Lussemburgo 1
MK - Macedonia 1
MU - Mauritius 1
OM - Oman 1
PY - Paraguay 1
SC - Seychelles 1
SV - El Salvador 1
SY - Repubblica araba siriana 1
Totale 200.642
Salva come PNG Salva come JPEG
Città #
Cagliari 185.433
Uta 3.859
Fairfield 498
Chandler 492
Boardman 422
Nyköping 399
Woodbridge 389
Houston 387
Ashburn 326
Ann Arbor 309
Wilmington 282
Jacksonville 281
Singapore 275
Seattle 186
Cambridge 179
Dearborn 168
Beijing 133
Nanjing 128
Santa Clara 117
Shanghai 102
Helsinki 95
Redwood City 77
Rome 76
Dong Ket 75
Boston 55
New York 52
Milan 50
Shenyang 49
San Diego 48
Padova 41
Nanchang 39
Changsha 36
Hebei 35
Mountain View 34
Atlanta 32
Guangzhou 32
London 31
Sassari 31
Toronto 28
Arequipa 26
Council Bluffs 25
Washington 25
Jinan 24
Tianjin 24
Jiaxing 23
Athens 22
Montclair 22
Norwalk 21
Aguascalientes 20
Brisbane 20
Istanbul 20
Lisbon 20
Orange 19
Los Angeles 18
Évora 18
Verona 17
Augusta 16
Oxford 16
Auburn Hills 15
Brussels 15
Florence 15
Chicago 14
Hefei 14
Ningbo 14
Taizhou 13
Redmond 12
São Paulo 12
Tübingen 12
Edinburgh 11
Millbury 11
Rende 11
Selargius 11
Siena 11
The Dalles 11
Turin 11
Valencia 11
Bucheon-si 10
Falls Church 10
Hangzhou 10
Krakow 10
Mumbai 10
Pune 10
Seoul 10
Wuhan 10
Zhengzhou 10
Phoenix 9
Venezia 9
Adelaide 8
Kunming 8
Naples 8
Nuremberg 8
Paris 8
Amsterdam 7
Brno 7
Catania 7
Dublin 7
Ericeira 7
Glasgow 7
Kawasaki 7
Leawood 7
Totale 196.105
Salva come PNG Salva come JPEG
Nome #
Petrographic and mineralogical charecterization of volcanic rocks and surface-depositions on romanesque monuments 10.821
Analisi composizionale comparativa delle malte di allettamento delle Fortezze del Peruzzi e dei Medici prima e dopo la caduta dello Stato di Siena 5.542
Mineralogical, petrographic, and physical investigations on fossiliferous middle Jurassic sandstones from central Sardinia (Italy) to define their alteration and experimental consolidation 5.496
Mineralogical-chemical alteration and origin of ignimbritic stones used in the old Cathedral of Nostra Signora di Castro (Sardinia, Italy) 5.474
Romanesque and territory. The construction materials of Sardinian medieval churches: new approaches to the valorization, conservation and restoration 5.393
Geochemical, mineral-petrographic and physical-mechanical characterization of stones and mortars from the Romanesque Saccargia Basilica (Sardinia, Italy) to define their origin and alteration 4.355
From Roman to Romanesque, a mix of architectural styles and geomaterials in San Saturnino Basilica (Cagliari, Italy): petrophysical characterization, static-structural analysis and 3D laser-scan relief 4.320
Chemical-physical agents and biodeteriogens in the alteration of limestones used in coastal historical fortifications located in different climatic conditions 3.288
(FeCo/Ppy@C): Pt-free FeCo-Polypyrrole Nanocomposites Supported on Porous Carbon for Electrochemical Application 3.185
The monumental submerged punic harbor of Malfatano and associated Piscinnì quarries, Archaeometric and Geoarchaeological approach 3.106
From the fortresses of Peruzzi to the Medici fortress: study of the entrapment mortars before and after the fall of the State of Siena 3.028
Chemical-physical agents and biodeteriogens in the alteration of limestones used in coastal historical fortifications 2.974
The ancient pozzolanic mortars and concretes of Heliocaminus baths in Hadrian's Villa (Tivoli, Italy) 2.926
Comparative pottery technology between the Middle Ages and Modern times (Santarém, Portugal) 2.824
Uso del granito nel centro storico di Tempio Pausania (Sardegna NE): un approccio multisciplinare 2.810
Provenance of marbles from Baths of Nero (Pisa, Italy) 2.740
Alteration processes of geomaterials used on the pentagonal tower of Serravalle Castle (central-west Sardinia, Italy) 2.489
Examining the reactivity of volcanic ash in ancient mortars by using a micro-chemical approach 2.479
Chemical-physical agents and biodeteriogens in the alteration of limestones used in coastal historical fortifications 2.406
The ancient pozzolanic mortars and raw materials of the Heliocaminus baths in Hadrian's Villa (Italy) 2.328
Geochemical characterisation of pozzolanic obsidian glasses used in the ancient mortars of Nora Roman theatre (Sardinia, Italy): provenance of raw materials and historical–archaeological implications 2.205
Petrographic features of foliated leucocratic body in the Migmatite Complex from northeastern Sardinia 2.078
Il quartiere edilizio ritrovato sotto la chiesa di Sant’Eulalia a Cagliari 2.011
Relations between static-structural aspects, construction phases and building materials of San Saturnino Basilica (Cagliari, Italy) 2.003
Petrophysical properties of a granite-protomylonite-ultramylonite sequence: insight from the Monte Grighini shear zone, central Sardinia, Italy 2.001
Methodological approach in the conservation of coastal fortifications 1.979
Characterization of the ancient mortars and 3D laser scanner survey to define the construction phases of the Heliocaminus Baths in the Hadrian's Villa (Tivoli, Italy) 1.939
Origin of Roman worked stones from St. Saturno christian basilica (South Sardinia, Italy) 1.875
Laser-Induced Breakdown Spectroscopy analysis of the limestone Nuragic statues from Mont'e Prama site (Sardinia, Italy) 1.859
Petrographic and physical investigations on geomaterials for conservation of Las Plassas Castle (Marmilla, Sardinia, Italy) 1.738
Digital mapping, building technique and petrographic characterisation of stones from Opera Punta Rossa fortification (Caprera, north Sardinia) 1.724
Geochemical characterization of migmatized orthogneiss from Porto Ottiolu (NE Sardinia, Italy) and its inferences on partial melting process 1.711
ABITARE NEL MEDITERRANEO TARDOANTICO Atti del II Convegno Internazionale del Centro Interuniversitario di Studi sull’Edilizia abitativa tardoantica nel Mediterraneo (CISEM) (Bologna 2-5 marzo 2016) 1.598
Archaeometric study of mortars from the Pisa's Cathedral Square (Italy) 1.598
Mappatura digitale, tecniche costruttive e caratterizzazione petrografica delle pietre della fortificazione di Punta Rossa (Caprera) 1.589
Geochemical and petrographic analysis on the stones and integrated digital survey of the Cathedral of Sant'Antioco di Bisarcio (Ozieri, Italy) 1.586
TRANSITION FROM PROTOMYLONITE TO ULTRAMYLONITE IN THE VARISCAN LEUCOGRANITE FROM MONTE GRIGHINI COMPLEX, WEST-CENTRAL SARDINIA: PRELIMINARY PETROGRAPHIC AND PETROPHYSICAL DATA 1.569
Mineralogical, petrographic and physical-mechanical study of Roman construction materials from the Maritime Theatre of Hadrian's Villa (Rome, Italy) 1.552
Petrophysical properties of Variscan mylonitic leucogranite of Monte Grighine, west-central Sardinia 1.552
Ammonium monoethyloxalate (AmEtOx): a new agent for the conservation of carbonate stone substrates 1.531
Chronological classification of ancient mortars employing spectroscopy and spectrometry techniques: Sagunto (Valencia, Spain) Case 1.527
Physical-mechanical consolidation and protection of Miocenic limestone used on Mediterranean historical monuments: the case study of Pietra Cantone (southern Sardinia, Italy) 1.525
The Sant’Antioco di Bisarcio Romanesque Basilica (NE Sardinia, Italy): traces of ancient treatments on the stone materials of the façades 1.462
Historic masonry of Middle Ages in Sardinia: materials and building techniques as motivating reasons for iconographic choices 1.405
Mineralogical-compositional variations in the production technologies of mortars used in some Italian medieval fortifications located in different territorial and historical contexts 1.404
Roman mortars and raw materials from the Maritime Theater of Roman Hadrian's Villa (Rome, Italy) 1.388
Mineralogical, petrographic and chemical analysis of geomaterials used in the mortars of Roman Nora theatre (south Sardinia, Italy) 1.373
Petrographic, geochemical and physical characterization of volcanic rocks from the fortification of Bosa Castle (western Sardinia, Italy) 1.369
Archaeometric study of the Roman marbles reused in the late Antiquity St. Saturnino Basilica (Cagliari, Italy) 1.326
The Santa Croce wall structure of Cagliari's ancient fortifications (Sardinia, Italy): construction technologies and stone decay 1.324
Workability and chemical-physical degradation of limestone frequently used in historical Mediterranean architecture 1.272
Geochemical and petrophysical characterization of volcanic raw materials with pozzolanic activity used in Roman ancient mortars: some case study 1.243
Le vulcaniti mioceniche sarde utilizzate come materiali costruttivi nell’architettura storica: l’esempio della chiesa romanica di San Pietro di Zuri (Sardegna, Italia) 1.230
Petrographic and geochemical investigations on the volcanic rocks used in the Punic-Roman archaeological site of Nora (Sardinia, Italy) 1.227
Decay and provenance of the volcanic rocks used to construct the pentagonal tower of the medieval castle of Serravalle (Bosa, W Sardinia, Italy) 1.205
Alteration of stone materials on Sardinian medieval monuments: physical, chemical and petrographic analysis for their restoration and preservation 1.193
Characterization of ancient coloured paintings on the mortars from the ‘Teatro Marittimo’ of Roman Hadrian's Villa (Rome, Italy) 1.190
Pyroclastic Stones as Building Materials in Medieval Romanesque Architecture of Sardinia (Italy): Chemical-Physical Features of Rocks and Associated Alterations 1.181
Contribution of petrophysical analysis and 3D digital survey in the archaeometric investigations of the Emperor Hadrian’s Baths (Tivoli, Italy) 1.163
Secondary mineral phases and ancient treatments on limestone from Monte de Prama nuragic statues (Sardinia, Italy) 1.146
I monumenti megalitici di Ellès e Mididi nella regione di Maktar. Caratteri geologici, geomorfologici e petrografici dell’Alto Tell tunisino 1.142
Use of stone and construction technologies in the medieval and modern fortifications of Cagliari (south-Sardinia, Italy) 1.128
K/Na-silicate, ethyl-silicate and silane nano-molecular treatments in the restoration of high porous limestone 1.124
Caratterizzazione mineralogico-petrografica delle malte del teatro di Nora (Sardegna sud occidentale) 1.100
Hydric dilatation of ignimbritic stones used in the Church of Santa Maria di Otti (Oschiri, northern Sardinia, Italy) 1.063
Degrado fisico indotto da assorbimento d'acqua in rocce vulcaniche usate per costruire la chiesa di Nostra Signora di Otti (Sardegna Nord-occidentale, Italia): Ulteriori dati e nuove considerazioni 1.048
The stones of the medieval ‘San Mamiliano di Simassi’ church (SW Sardinia, Italy): characterization and state of conservation 1.026
Strategies for helium pycnometry density measurements of welded ignimbritic rocks 1.019
Caratterizzazione mineralogico-petrografica e provenienza delle vulcaniti del teatro romano di Nora (Sardegna sud occidentale) 1.014
Provenance and alteration of pyroclastic rocks from the Romanesque Churches of Logudoro (north Sardinia, Italy) using a petrographic and geochemical statistical approach 1.006
The construction materials and static-structural aspects of the Budello tower (Teulada, south-west Sardinia, Italy) 1.004
The church of St. Saturnino in Cagliari, Sardinia, reading the levels of history through the use of digital survey and the petrophysical study of materials 983
Caratteri petrografici, petrochimici, mineralogici, vulcanologici e fisici delle vulcaniti cenozoiche affioranti nei bacini di alimentazione delle sabbie dei litorali sardi antistanti le coste della corsica; confronti con la mineralogiadei sedimenti costieri. Dati preliminari 976
Asce in pietra di insediamenti eneolitici dell’alto Campidano, Sardegna centro occidentale - Italia. (Caratterizzazione petrochimica e implicazioni archeologiche) 970
Compositional analysis of the stones and ancient mortars of the Nora medieval tower fortification (south Sardinia, Italy) 947
I monumenti megalitici di Ellès e Madidi nella regione di Maktar – Caratteri geologici, geomorfologici e petrografici dell’Alto Tell tunisino 936
Ancient restoration and production technologies of Roman mortars from monuments placed in hydrogeological risk areas: a case study 931
Un approccio interdisciplinare allo studio dei Bacini ceramici nella Sardegna medievale: il caso della chiesa di San Pietro di Ponte a Quartu Sant’Elena (CA) 931
null 918
Asce eneolitiche in pietra scheggiata della Sardegna centro occidentale. Dati preliminari petrografici e geochimici e implicazioni archeometriche 917
Malte ‘fortificate’: lo studio delle malte di allettamento nei fortini peruzziani delle mura di Siena (Italia) 908
Ca-oxalate and alteration films on the stones of the medieval Romanesque Sardinian monuments (Italy) 907
Chemical-physical decay of volcanic stone from Santa Maria Church in Tergu (Anglona, Italy) 899
The ancient mortars and geomaterials of tower fortification of Nora (Pula, Sardinia, Italy) 898
Geochemical and mineralogical alteration on the stone and mortar surfaces of medieval churches (Sardinia, Italy): weathering processes, ancient conservation treatments and their microstratigraphy 886
Obsidian in the geochemical-petrographical evolution of Plio-Quaternary volcanics from Monte Arci 879
Manuale sui materiali lapidei vulcanici della Sardegna centrale e dei loro principali impieghi nel costruito 863
LIBS analysis to define the alteration processes on the surface of ancient stones: the case study of Romanesque medieval monuments (Italy) 862
Giant garnet crystals in wollastonite–grossularite–diopside-bearing marbles from Tamarispa (NE Sardinia, Italy): geosite potential, conservation, and evaluation as part of a regional environmental resource 862
The coastal fortification of Cape de Forma (Menorca, Spain): petrophysical characterization and alteration of stones and ancient mortars 847
Archaeometric approach for studying architectural earthenwares from the archaeological site of s. Omobono (Rome-Italy) 846
Chemical reactivity of pozzolans from Sardinia for the production of hydraulic limes 819
Secondary mineral phases and ancient treatments on limestone from Monte Prama nuraghic statues (Sardinia, Italy) 798
Definizione, nel Monte Arci, di possibili siti di provenienza di manufatti ossidianacei, mediterranei, per mezzo della loro caratterizzazione petrografica e geochimica 793
Petrographic characterisation of polished stone axes from Neolithic Sardinia, archaeological implications 772
Caratterizzazione minero-petrografica e fisica delle rocce granitoidi utilizzate nella costruzione di alcuni edifici storici nell’area di Tempio Pausania: indagini preliminari 771
Ca-oxalate films on the stones of the medieval architecture: the case-study of Romanesque Churches 771
Lime and Cement Plasters from 20th Century Buildings: Raw Materials and Relations between Mineralogical–Petrographic Characteristics and Chemical–Physical Compatibility with the Limestone Substrate 770
Characterization of Roman and medieval mortars from the Pisa’s Cathedral Square (Italy) 755
A petro-chemical study of ancient mortars from the archaeological site of Kyme (Turkey) 754
Totale 176.678
Salva come PNG Salva come JPEG
Categoria #
all - tutte 240.837
article - articoli 0
book - libri 0
conference - conferenze 0
curatela - curatele 0
other - altro 0
patent - brevetti 0
selected - selezionate 0
volume - volumi 0
Totale 240.837
Salva come PNG Salva come JPEG


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2019/20202.403 0 0 0 0 0 0 0 0 0 836 495 1.072
2020/202139.188 1.252 1.286 1.585 11.319 8.394 4.194 2.741 2.405 867 1.892 1.858 1.395
2021/20228.143 1.061 417 492 478 403 680 500 340 493 1.029 1.022 1.228
2022/202313.119 1.221 1.541 1.258 950 976 1.559 790 1.289 804 828 1.252 651
2023/202425.077 746 559 677 914 1.367 2.997 2.085 10.162 997 1.307 1.855 1.411
2024/202557.910 30.457 11.704 5.466 3.472 1.522 1.971 2.487 219 448 164 0 0
Totale 201.140