Works by DENYS, Christiane

Results: 85

Integrative taxonomy of Guinean Lemniscomys species (Rodentia, Mammalia).

Published in:

Journal of Vertebrate Biology, 2020, v. 69, n. 2, p. 1, doi. 10.25225/jvb.20008

By:

DENYS, Christiane;
LALIS, Aude;
ANISKIN, Vladimir;
GERBAULT-SEUREAU, Michèle;
DELAPRE, Arnaud;
GILISSEN, Emmanuel;
MERKER, Stefan;
NICOLAS, Violaine

Publication type:

Article

The 13th African Small Mammal Symposium in Mekelle, Ethiopia, and the evolution of these meetings.

Published in:

Journal of Vertebrate Biology, 2020, v. 69, n. 2, p. 1, doi. 10.25225/jvb.E2002

By:

BRYJA, Josef;
MEHERETU, Yonas;
DENYS, Christiane;
TAYLOR, Peter;
LEIRS, Herwig

Publication type:

Article

Palaeoecological reconstructions of the Middle to Late Pleistocene occupations in the Southern Caucasus using rodent assemblages.

Published in:

Archaeological & Anthropological Sciences, 2022, v. 14, n. 5, p. 1, doi. 10.1007/s12520-022-01555-w

By:

Rey-Rodríguez, Iván;
López-García, Juan Manuel;
Stoetzel, Emmanuelle;
Denys, Christiane;
Arnaud, Julie;
Parfitt, Simon;
Fernández-Jalvo, Yolanda;
King, Tania

Publication type:

Article

Associated tympanic bullar and cochlear hypertrophy define adaptations to true deserts in African gerbils and laminate‐toothed rats (Muridae: Gerbillinae and Murinae).

Published in:

Journal of Anatomy, 2019, v. 234, n. 2, p. 179, doi. 10.1111/joa.12906

By:

Nengovhela, Aluwani;
Braga, José;
Denys, Christiane;
Beer, Frikkie;
Tenailleau, Christophe;
Taylor, Peter J.

Publication type:

Article

Skull morphological evolution in Malagasy endemic Nesomyinae rodents.

Published in:

PLoS ONE, 2022, v. 17, n. 2, p. 1, doi. 10.1371/journal.pone.0263045

By:

Terray, Léa;
Denys, Christiane;
Goodman, Steven M.;
Soarimalala, Voahangy;
Lalis, Aude;
Cornette, Raphaël

Publication type:

Article

MISE A JOUR DE LA LISTE DES RONGEURS D'ALGÉRIE, BIOGÉOGRAPHIE ET IMPLICATIONS PALÉOÉCOLOGIQUES.

Published in:

Bulletin de la Société Zoologique de France, 2020, v. 145, n. 4, p. 413

By:

MEUNIER, Mathias;
STOETZEL, Emmanuelle;
SOUTTOU, Karim;
SEKOUR, Makhlouf;
MOUSSA, Hadjoudj;
BOUKHEMZA, Mohammed;
DOUMANDJI, Salaheddine;
DENYS, Christiane

Publication type:

Article

Mastomys natalensis and Lassa Fever, West Africa.

Published in:

Emerging Infectious Diseases, 2006, v. 12, n. 12, p. 1971, doi. 10.3201/eid1212.060812

By:

Lecompte, Emilie;
Fichet-Calvet, Elisabeth;
Daffis, Stéphane;
Koulémou, Kékoura;
Sylla, Oumar;
Kourouma, Fodé;
Doré, Amadou;
Soropogui, Barré;
Aniskin, Vladimir;
Allali, Bernard;
Kouassi Kan, Stéphane;
Lalis, Aude;
Koivogui, Lamine;
Günther, Stephan;
Denys, Christiane;
Meulen, Jan Ter

Publication type:

Article

Hantavirus in African Wood Mouse, Guinea.

Published in:

Emerging Infectious Diseases, 2006, v. 12, n. 5, p. 838, doi. 10.3201/eid1205.051487

By:

Klempa, Boris;
Fichet-Calvet, Elisabeth;
Lecompte, Emilie;
Auste, Brita;
Aniskin, Vladimir;
Meisel, Helga;
Denys, Christiane;
Koivogui, Lamine;
Meulen, Jan ter;
Krüger, Detlev H.

Publication type:

Article

Diet of the Lesser Antillean barn owl Tyto insularis (Aves: Strigiformes) in Dominica, Lesser Antilles.

Published in:

Caribbean Journal of Science, 2016, v. 49, n. 1, p. 91, doi. 10.18475/cjos.v49i1.a1

By:

Stoetzel, Emmanuelle;
Fraysse, Antoine;
Grouard, Sandrine;
Bochaton, Corentin;
Gala, Monica;
Lenoble, Arnaud;
Denys, Christiane

Publication type:

Article

Origin and evolution of Heterocephalus from East Africa (Rodentia: Heterocephalidae).

Published in:

Lynx, series nova, 2022, v. 53, n. 1, p. 93, doi. 10.37520/lynx.2022.007

By:

DENYS, Christiane

Publication type:

Article

Counter-gradient variation and the expensive tissue hypothesis explain parallel brain size reductions at high elevation in cricetid and murid rodents.

Published in:

Scientific Reports, 2023, v. 13, n. 1, p. 1, doi. 10.1038/s41598-023-32498-4

By:

Nengovhela, Aluwani;
Ivy, Catherine M.;
Scott, Graham R.;
Denys, Christiane;
Taylor, Peter J.

Publication type:

Article

Adaptation in brain structure and respiratory and olfactory structures across environmental gradients in African and North American muroid rodents.

Published in:

Integrative Zoology, 2024, v. 19, n. 1, p. 165, doi. 10.1111/1749-4877.12788

By:

TAYLOR, Peter J.;
NENGOVHELA, Aluwani;
DENYS, Christiane;
SCOTT, Graham R.;
IVY, Catherine M.

Publication type:

Article

Host evolution in Mastomys natalensis (Rodentia: Muridae): An integrative approach using geometric morphometrics and genetics.

Published in:

Integrative Zoology, 2015, v. 10, n. 6, p. 505, doi. 10.1111/1749-4877.12164

By:

LALIS, Aude;
EVIN, Allowen;
JANIER, Marc;
KOIVOGUI, Lamine;
DENYS, Christiane

Publication type:

Article

Phylogeography and evolutionary history of the Crocidura olivieri complex (Mammalia, Soricomorpha): from a forest origin to broad ecological expansion across Africa.

Published in:

BMC Evolutionary Biology, 2015, v. 15, n. 1, p. 1, doi. 10.1186/s12862-015-0344-y

By:

Jacquet, François;
Denys, Christiane;
Verheyen, Erik;
Bryja, Josef;
Hutterer, Rainer;
Kerbis Peterhans, Julian C.;
Stanley, William T.;
Goodman, Steven M.;
Couloux, Arnaud;
Colyn, Marc;
Nicolas, Violaine

Publication type:

Article

Phylogenetic position of the endemic Mount Oku rat, L amottemys okuensis ( Rodentia: Muridae), based on molecular and morphological data.

Published in:

Zoological Journal of the Linnean Society, 2016, v. 177, n. 1, p. 209, doi. 10.1111/zoj.12361

By:

Missoup, Alain Didier;
Nicolas, Violaine;
Eiseb, Seth;
Chung, Ernest Keming;
Denys, Christiane

Publication type:

Article

Barcoding, molecular taxonomy, and exploration of the diversity of shrews (Soricomorpha: Soricidae) on Mount Nimba (Guinea).

Published in:

Zoological Journal of the Linnean Society, 2012, v. 166, n. 3, p. 672, doi. 10.1111/j.1096-3642.2012.00856.x

By:

JACQUET, FRANÇOIS;
NICOLAS, VIOLAINE;
BONILLO, CELINE;
CRUAUD, CORINNE;
DENYS, CHRISTIANE

Publication type:

Article

Molecular and morphometric variation in two sibling species of the genus Praomys (Rodentia: Muridae): implications for biogeography.

Published in:

Zoological Journal of the Linnean Society, 2010, v. 160, n. 2, p. 397, doi. 10.1111/j.1096-3642.2009.00602.x

By:

NICOLAS, VIOLAINE;
AKPATOU, BERTIN;
WENDELEN, WIM;
KERBIS PETERHANS, JULIAN;
OLAYEMI, AYODEJI;
DECHER, JAN;
MISSOUP, ALAIN-DIDIER;
DENYS, CHRISTIANE;
BARRIERE, PATRICK;
CRUAUD, CORINNE;
COLYN, MARC

Publication type:

Article

Phylogeographic structure and regional history of Lemniscomys striatus (Rodentia: Muridae) in tropical Africa.

Published in:

Journal of Biogeography, 2008, v. 35, n. 11, p. 2074, doi. 10.1111/j.1365-2699.2008.01950.x

By:

Nicolas, Violaine;
Mboumba, Jean-François;
Verheyen, Erik;
Denys, Christiane;
Lecompte, Emilie;
Olayemi, Ayodeji;
Missoup, Alain D.;
Katuala, Pionus;
Colyn, Marc

Publication type:

Article

Reconstructing Asian faunal introductions to eastern Africa from multi-proxy biomolecular and archaeological datasets.

Published in:

PLoS ONE, 2017, v. 12, n. 8, p. 1, doi. 10.1371/journal.pone.0182565

By:

Prendergast, Mary E.;
Buckley, Michael;
Crowther, Alison;
Frantz, Laurent;
Eager, Heidi;
Lebrasseur, Ophélie;
Hutterer, Rainer;
Hulme-Beaman, Ardern;
Van Neer, Wim;
Douka, Katerina;
Veall, Margaret-Ashley;
Quintana Morales, Eriéndira M.;
Schuenemann, Verena J.;
Reiter, Ella;
Allen, Richard;
Dimopoulos, Evangelos A.;
Helm, Richard M.;
Shipton, Ceri;
Mwebi, Ogeto;
Denys, Christiane

Publication type:

Article

A new Pliocene xerine sciurid (Rodentia) from Kossom Bougoudi, Chad.

Published in:

Journal of Vertebrate Paleontology, 2003, v. 23, n. 3, p. 676, doi. 10.1671/2311

By:

Denys, Christiane;
Viriot, Laurent;
Daams, Remmert;
Pelaez-Campomanes, Pablo;
Vignaud, Patrick;
Andossa, Likius;
Brunet, Michel

Publication type:

Article

Phylogeny and biogeography of African Murinae based on mitochondrial and nuclear gene sequences, with a new tribal classification of the subfamily.

Published in:

BMC Evolutionary Biology, 2008, v. 8, p. 1, doi. 10.1186/1471-2148-8-199

By:

Lecompte, Emilie;
Aplin, Ken;
Denys, Christiane;
Catzeflis, François;
Chades, Marion;
Chevret, Pascale

Publication type:

Article

Compression and digestion as agents of vertebral deformation in Sciaenidae, Merlucidae and Gadidae remains: an experimental study to interpret archaeological assemblages.

Published in:

Journal of Archaeological Method & Theory, 2022, v. 29, n. 2, p. 480, doi. 10.1007/s10816-021-09527-5

By:

Frontini, Romina;
Roselló-Izquierdo, Eufrasia;
Morales-Muñiz, Arturo;
Denys, Christiane;
Guillaud, Émilie;
Fernández-Jalvo, Yolanda;
Pesquero-Fernández, María Dolores

Publication type:

Article

West-Central African Pleistocene lowland forest evolution revealed by the phylogeography of Misonne's soft-furred mouse.

Published in:

African Zoology, 2012, v. 47, n. 1, p. 100, doi. 10.3377/004.047.0119

By:

Nicolas, Violaine;
Missoup, Alain-Didier;
Colyn, Marc;
Cruaud, Corinne;
Denys, Christiane

Publication type:

Article

Diet of Black-shouldered Kite Elanus caeruleus in a farmland area near Algiers, Algeria.

Published in:

Ostrich: The Journal of African Ornithology, 2013, v. 84, n. 2, p. 113, doi. 10.2989/00306525.2013.781551

By:

Manaa, Abdessalam;
Souttou, Karim;
Sekour, Makhlouf;
Bendjoudi, Djamel;
Guezoul, Omar;
Baziz-Neffah, Fadila;
Doumandji, Salaheddine;
Stoetzel, Emmanuelle;
Denys, Christiane

Publication type:

Article

Phylogeny of Acomys spinosissimus (Rodentia, Muridae) from north Malawi and Tanzania: evidence from morphological and molecular analysis.

Published in:

Biological Journal of the Linnean Society, 2001, v. 73, n. 3, p. 321, doi. 10.1111/j.1095-8312.2001.tb01366.x

By:

BAROME, PIERRE-OLIVIER;
VOLOBOUEV, VITALY;
MONNEROT, MONIQUE;
MFUNE, JOHN KAZGEBA;
CHITAUKALI, WILBERT;
GAUTUN, JEAN-CLAUDE;
DENYS, CHRISTIANE

Publication type:

Article

Nonlinear projection methods for visualizing Barcode data and application on two data sets.

Published in:

Molecular Ecology Resources, 2013, v. 13, n. 6, p. 976, doi. 10.1111/1755-0998.12047

By:

Olteanu, Madalina;
Nicolas, Violaine;
Schaeffer, Brigitte;
Denys, Christiane;
Missoup, Alain‐Didier;
Kennis, Jan;
Larédo, Catherine

Publication type:

Article

Rapid peripatric speciation linked with drainage evolution in a rare African rodent, Mastomys shortridgei (Rodentia: Muridae).

Published in:

Journal of Zoological Systematics & Evolutionary Research, 2021, v. 59, n. 2, p. 522, doi. 10.1111/jzs.12441

By:

Eiseb, Seth J.;
Taylor, Peter J.;
Zeller, Ulrich;
Denys, Christiane;
Nicolas, Violaine

Publication type:

Article

Molecular phylogenetic analyses indicate paraphyly of the genus Hybomys (Rodentia: Muridae): Taxonomic implications.

Published in:

Journal of Zoological Systematics & Evolutionary Research, 2018, v. 56, n. 3, p. 444, doi. 10.1111/jzs.12213

By:

Missoup, Alain Didier;
Yemchui, Ghislain D.;
Denys, Christiane;
Nicolas, Violaine

Publication type:

Article

New molecular data favour an anthropogenic introduction of the wood mouse ( Apodemus sylvaticus) in North Africa.

Published in:

Journal of Zoological Systematics & Evolutionary Research, 2016, v. 54, n. 1, p. 1, doi. 10.1111/jzs.12111

By:

Lalis, Aude;
Leblois, Raphael;
Liefried, Sohaib;
Ouarour, Ali;
Reddy Beeravolu, Champak;
Michaux, Johan;
Hamani, Adel;
Denys, Christiane;
Nicolas, Violaine

Publication type:

Article

Phylogeography of the North African dipodil (Rodentia: Muridae) based on cytochrome- b sequences.

Published in:

Journal of Mammalogy, 2014, v. 95, n. 2, p. 241, doi. 10.1644/13-MAMM-A-241

By:

Nicolas, Violaine;
Ndiaye, Arame;
Benazzou, Touria;
Souttou, Karim;
Delapre, Arnaud;
Denys, Christiane

Publication type:

Article

INTERSPECIFIC PATTERNS OF SKULL VARIATION BETWEEN SYMPATRIC BRAZILIAN VESPER MICE: GEOMETRIC MORPHOMETRICS ASSESSMENT.

Published in:

Journal of Mammalogy, 2006, v. 87, n. 6, p. 1270, doi. 10.1644/05-MAMM-A-293R3.1

By:

Cordeiro-Estrela, Pedro;
Baylac, Michel;
Denys, Christiane;
Marinho-Filho, Jader

Publication type:

Article

Life history and habitat do not mediate temporal changes in body size due to climate warming in rodents.

Published in:

PeerJ, 2020, p. 1, doi. 10.7717/peerj.9792

By:

Nengovhela, Aluwani;
Denys, Christiane;
Taylor, Peter J.

Publication type:

Article

Diet of Short-eared Owl Asio flammeus (Pontoppidan, 1763) in desert area at Hassi El Gara (El Golea, Algeria).

Published in:

Zoology & Ecology, 2016, v. 26, n. 3, p. 159, doi. 10.1080/21658005.2016.1184907

By:

Djilali, Kaltoum;
Sekour, Makhlouf;
Souttou, Karim;
Ababsa, Labed;
Guezoul, Omar;
Denys, Christiane;
Doumandji, Salaheddine

Publication type:

Article

Flightless scaly‐tailed squirrels never learned how to fly: A reappraisal of Anomaluridae phylogeny.

Published in:

Zoologica Scripta, 2018, v. 47, n. 4, p. 404, doi. 10.1111/zsc.12286

By:

Fabre, Pierre‐Henri;
Tilak, Marie‐Ka;
Denys, Christiane;
Gaubert, Philippe;
Nicolas, Violaine;
Douzery, Emmanuel J. P.;
Marivaux, Laurent

Publication type:

Article

Forest refugia and riverine barriers promote diversification in the West African pygmy shrew ( Crocidura obscurior complex, Soricomorpha).

Published in:

Zoologica Scripta, 2014, v. 43, n. 2, p. 131, doi. 10.1111/zsc.12039

By:

Jacquet, François;
Nicolas, Violaine;
Colyn, Marc;
Kadjo, Blaise;
Hutterer, Rainer;
Decher, Jan;
Akpatou, Bertin;
Cruaud, Corinne;
Denys, Christiane

Publication type:

Article

Systematics and diversification of Praomys species (Rodentia: Muridae) endemic to the Cameroon Volcanic Line (West Central Africa).

Published in:

Zoologica Scripta, 2012, v. 41, n. 4, p. 327, doi. 10.1111/j.1463-6409.2012.00541.x

By:

Missoup, Alain D.;
Nicolas, Violaine;
Wendelen, Wim;
Keming, Ernest;
Bilong Bilong, Charles F.;
Couloux, Arnaud;
Atanga, Ekobo;
Hutterer, Rainer;
Denys, Christiane

Publication type:

Article

Phylogeny of the African murid tribe Otomyini (Rodentia), based on morphological and allozyme evidence.

Published in:

Zoologica Scripta, 2004, v. 33, n. 5, p. 389, doi. 10.1111/j.0300-3256.2004.00157.x

By:

Taylor, Peter J.;
Denys, Christiane

Publication type:

Article

Quaternary rodents of South Africa: A companion guide for cranio-dental identification.

Published in:

PLoS ONE, 2023, v. 18, n. 11, p. 1, doi. 10.1371/journal.pone.0289812

By:

Linchamps, Pierre;
Avery, D. Margaret;
Cornette, Raphaël;
Denys, Christiane;
Matthews, Thalassa;
Stoetzel, Emmanuelle

Publication type:

Article

A new hominid from the Upper Miocene of Chad, Central Africa.

Published in:

2002

By:

Brunet, Michel;
Guy, Franck;
Pilbeam, David;
Mackaye, Hassane Taisso;
Likius, Andossa;
Ahounta, Djimdoumalbaye;
Beauvilain, Alain;
Blondel, Cécile;
Bocherens, Hervé;
Boisserie, Jean-Renaud;
De Bonis, Louis;
Coppens, Yves;
Dejax, Jean;
Denys, Christiane;
Duringer, Philippe;
Eisenmann, Véra;
Fanone, Gongdibé;
Fronty, Pierre;
Geraads, Denis

Publication type:

Erratum

A new hominid from the Upper Miocence of Chad, Central Africa.

Published in:

Nature, 2002, v. 418, n. 6894, p. 145, doi. 10.1038/nature00879

By:

Brunet, Michael;
Guy, Franck;
Pilbeam, David;
Mackaye, Hassane Taisso;
Likius, Andossa;
Ahounta, Djimdoumalbaye;
Beauvilain, Alain;
Blondel, Cecile;
Bocherens, Herve;
Boisserie, Jean-Renaud;
De Bonis, Louis;
Coppens, Yves;
Dejax, Jean;
Denys, Christiane;
Duringer, Philippe;
Eisenmann, Vera;
Fanone, Gongdibe;
Fronty, Pierre;
Geraads, Denis

Publication type:

Article

Rodents of the Afar Triangle (Ethiopia): geographical isolation causes high level of endemism.

Published in:

Biodiversity & Conservation, 2022, v. 31, n. 2, p. 629, doi. 10.1007/s10531-022-02354-4

By:

Bryja, Josef;
Meheretu, Yonas;
Boratyński, Zbyszek;
Zeynu, Ali;
Denys, Christiane;
Mulualem, Getachew;
Welegerima, Kiros;
Bryjová, Anna;
Kasso, Mohammed;
Kostin, Danila S.;
Martynov, Aleksey A.;
Lavrenchenko, Leonid A.

Publication type:

Article

Commensalism outweighs phylogeographical structure in its effect on phenotype of a Sudanian savanna rodent.

Published in:

Biological Journal of the Linnean Society, 2020, v. 129, n. 4, p. 931, doi. 10.1093/biolinnean/blz184

By:

Mikula, Ondřej;
Nicolas, Violaine;
Boratyński, Zbyszek;
Denys, Christiane;
Dobigny, Gauthier;
Fichet-Calvet, Elisabeth;
Gagaré, Sama;
Hutterer, Rainer;
Nimo-Paintsil, Shirley Cameron;
Olayemi, Ayodeji;
Bryja, Josef

Publication type:

Article

Phylogeography and demographic history of Shaw's Jird ( Meriones shawii complex) in North Africa.

Published in:

Biological Journal of the Linnean Society, 2016, v. 118, n. 2, p. 262, doi. 10.1111/bij.12725

By:

Lalis, Aude;
Leblois, Raphael;
Stoetzel, Emmanuelle;
Benazzou, Touria;
Souttou, Karim;
Denys, Christiane;
Nicolas, Violaine

Publication type:

Article

Molecular and morphological evidence for a Pleistocene radiation of laminate-toothed rats ( Otomys: Rodentia) across a volcanic archipelago in equatorial Africa.

Published in:

Biological Journal of the Linnean Society, 2014, v. 113, n. 1, p. 320, doi. 10.1111/bij.12317

By:

Taylor, Peter J.;
Maree, Sarita;
Cotterill, Fenton P. D.;
Missoup, Alain Didier;
Nicolas, Violaine;
Denys, Christiane

Publication type:

Article

Mus in Morocco: a Quaternary sequence of intraspecific evolution.

Published in:

Biological Journal of the Linnean Society, 2013, v. 109, n. 3, p. 599, doi. 10.1111/bij.12065

By:

Stoetzel, Emmanuelle;
Denys, Christiane;
Michaux, Jacques;
Renaud, Sabrina

Publication type:

Article

A mitochondrial phylogeographic scenario for the most widespread African rodent, Mastomys natalensis.

Published in:

Biological Journal of the Linnean Society, 2013, v. 108, n. 4, p. 901, doi. 10.1111/bij.12013

By:

Colangelo, Paolo;
Verheyen, Erik;
Leirs, Herwig;
Tatard, Caroline;
Denys, Christiane;
Dobigny, Gauthier;
Duplantier, Jean-Marc;
Brouat, Carine;
Granjon, Laurent;
Lecompte, Emilie

Publication type:

Article

Combining geometric morphometrics and pattern recognition to identify interspecific patterns of skull variation: case study in sympatric Argentinian species of the genus Calomys (Rodentia: Cricetidae: Sigmodontinae).

Published in:

Biological Journal of the Linnean Society, 2008, v. 94, n. 2, p. 365, doi. 10.1111/j.1095-8312.2008.00982.x

By:

CORDEIRO-ESTRELA, PEDRO;
BAYLAC, MICHEL;
DENYS, CHRISTIANE;
POLOP, JAIME

Publication type:

Article

Geometric morphometrics, neural networks and diagnosis of sibling Taterillus species (Rodentia, Gerbillinae).

Published in:

Biological Journal of the Linnean Society, 2002, v. 77, n. 3, p. 319, doi. 10.1046/j.1095-8312.2002.00074.x

By:

DOBIGNY, GAUTHIER;
BAYLAC, MICHEL;
DENYS, CHRISTIANE

Publication type:

Article

Importance and role of neotaphonomic collections: the example of microvertebrate and experimental collection management.

Published in:

Historical Biology, 2024, v. 36, n. 8, p. 1663, doi. 10.1080/08912963.2023.2223230

By:

Christiane, Denys;
Emmanuelle, Stoetzel;
Pierre, Linchamps;
Yolanda, Fernandez-Jalvo;
Andrews, Peter

Publication type:

Article

Fossil micromammals and the palaeoenvironments of the Paranthropus robustus site of Cooper's Cave.

Published in:

Historical Biology, 2024, v. 36, n. 5, p. 905, doi. 10.1080/08912963.2023.2196677

By:

Linchamps, Pierre;
Stoetzel, Emmanuelle;
Cornette, Raphaël;
Denys, Christiane;
Hanon, Raphaël;
Maringa, Nompumelelo;
Matthews, Thalassa;
Steininger, Christine

Publication type:

Article