doc. Mgr. Tomáš Albrecht, Ph.D.

Pozice: vědecký pracovník
Zaměření: Evoluční ekologie, behaviorální ekologie, ekologie ptáků
Oddělení: Oddělení ekologie ptáků
Telefon: +420 568 423 681
E-mail: albrechtivb.cz

Projekty

Složky pohlavního výběru monogamního kura koroptve polní

Mimopárové paternity a síla sexuální selekce u sociálně monogamního pěvce

Post-kopulační pohlavní výběr a biologie spermie: vnitropopulační a mezidruhové procesy u pěvců

Variabilita v přerozdělování zdrojů mezi fázemi hnízdního pokusu u kachen

Publikace

2012

S. J. E. BAIRD, A. RIBAS, M. MACHOLÁN, T. ALBRECHT, J. PIÁLEK, J. GOÜY DE BELLOCQ: Where are the wormy mice? A re-examination of hybrid parasitism in the European house mouse hybrid zone, Evolution (2012) .

V. JAVŮRKOVÁ, A. L. ŠIZLING, J. KREISINGER, T. ALBRECHT: An alternative theoretical approach to escape decision-making: the role of visual cues, PLoS ONE 7 (2012) .

M. PROMEROVÁ, W. BABIK, J. BRYJA, T. ALBRECHT, M. STUGLIK, J. RADWAN: Evaluation of two approaches to genotyping major histocompatibility complex class I in a passerine—CE-SSCP and 454 pyrosequencing, Molecular Ecology Resources 12 (2012) 285-292.

M. VINKLER, J. SCHNITZER, P. MUNCLINGER, T. ALBRECHT: Phytohaemagglutinin skin-swelling test in scarlet rosefinch males: low-quality birds respond more strongly, Animal Behaviour 83 (2012) .

2011

D. HOŘÁK, O. SEDLÁČEK, A. TÓSZÖGYOVÁ, T. ALBRECHT, M. FERENC, V. JELÍNEK, D. STORCH: Geographic variation in avian clutch size and nest predation risk along a productivity gradient in South Africa, Ostrich 82 (2011) 175-183.

V. JAVŮRKOVÁ, D. HOŘÁK, J. KREISINGER, P. KLVAŇA, T. ALBRECHT: Factors affecting sleep/vigilance behaviour in incubating mallards, Ethology 117 (2011) 345-355.

M. PROMEROVÁ, M. VINKLER, J. BRYJA, R. POLÁKOVÁ, J. SCHNITZER, P. MUNCLINGER, T. ALBRECHT: Occurrence of extra-pair paternity is connected to social male’s MHC-variability in the scarlet rosefinch Carpodacus erythrinus, Journal of avian biology 42 (2011) 5-10.

B. SAK, M. KVÁČ, D. KVĚTOŇOVÁ, T. ALBRECHT, J. PIÁLEK: The first report on natural Enterocytozoon bieneusi and Encephalitozoon spp. infections in wild East-European House Mice (Mus musculus musculus) and West-European House Mice (M. m. domesticus) in a hybrid zone across the Czech Republic–Germany border, Veterinary Parasitology 178 (2011) .

J. SVOBODOVÁ, J. KREISINGER, M. ŠÁLEK, M. KOUBOVÁ, T. ALBRECHT: Testing mechanistic explanations for mammalian predator responses to habitat edges, European Journal of Wildlife Research 57 (2011) 467-474.

O. ŠŤOVÍČEK, D. ČÍŽKOVÁ, L. YANG, T. ALBRECHT, G. HECKEL, M. VYSKOČILOVÁ, J. KREISINGER: Development of microsatellite markers for a diving duck, the common pochard (Aythya ferina), Conservation genetics resources 3 (2011) 573-576.

M. VINKLER, T. ALBRECHT: Handling "immunocompetence" in ecological studies: do we operate with confused terms?, Journal of avian biology 42 (2011) 490-493.

M. VINKLER, T. ALBRECHT: Phylogeny, longevity and evolution of adaptive immunity, Folia zoologica 60 (2011) 277-282.

2010

K. DOLEČKOVÁ, T. ALBRECHT, L. MIKEŠ, P. HORÁK: Cathepsins B1 and B2 in the neuropathogenic schistosome Trichobilharzia regenti: distinct gene expression profiles and presumptive roles throughout the life cycle, Parasitology Research 107 (2010) 751-755.

J. KREISINGER, P. MUNCLINGER, V. JAVŮRKOVÁ, T. ALBRECHT: Analysis of extra-pair paternity and conspecific brood parasitism in mallards Anas platyrhynchos using non-invasive techniques, Journal of avian biology 41 (2010) 551-557.

J. T. LIFJELD, T. LASKEMOEN, O. KLEVEN, T. ALBRECHT, R. J. ROBERTSON: Sperm length variation as a predictor of extrapair paternity in passerine birds, PLoS ONE 5 (2010) .

E. PADYŠÁKOVÁ, M. ŠÁLEK, L. POLEDNÍK, F. SEDLÁČEK, T. ALBRECHT: Predation on simulated duck nests in relation to nest density and landscape structure, Wildlife Research 37 (2010) 597-603.

M. ŠÁLEK, J. KREISINGER, F. SEDLÁČEK, T. ALBRECHT: Do prey densities determine preferences of mammalian predators for habitat edges in an agricultural landscape?, Landscape and Urban Planning 98 (2010) .

M. VINKLER, J. SCHNITZER, P. MUNCLINGER, J. VOTÝPKA, T. ALBRECHT: Haematological health assessment in a passerine with extremely high proportion of basophils in peripheral blood, Journal of Ornithology 151 (2010) 841-849.

M. VINKLER, H. BAINOVÁ, T. ALBRECHT: Functional analysis of the skin-swelling response to phytohaemagglutinin, Functional Ecology 24 (2010) 1081-1086.

M. VINKLER, T. ALBRECHT: Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health, Naturwissenschaften 97 (2010) 19-28.

2009

T. ALBRECHT, M. VINKLER, J. SCHNITZER, R. POLÁKOVÁ, P. MUNCLINGER, J. BRYJA: Extra-pair fertilizations contribute to selection on secondary male ornamentation in a socially monogamous passerine, Journal of Evolutionary Biology 22 (2009) 2020-2030.

B. BÍMOVÁ, T. ALBRECHT, M. MACHOLÁN, J. PIÁLEK: Signalling components of the house mouse mate recognition system, Behavioural Processes 80 (2009) .

M. HONZA, R. PIÁLKOVÁ, T. ALBRECHT, Š. NEUŽILOVÁ: Nest defence against conspecific intruders in the common pochard Aythya ferina: natural observations and an experimental test, Acta Ornithologica 44 (2009) 151-158.

E. PADYŠÁKOVÁ, M. ŠÁLEK, L. POLEDNÍK, F. SEDLÁČEK, T. ALBRECHT: Removal of American mink increases the success of simulated nests in linear habitat, Wildlife Research 36 (2009) 225-230.

M. PROMEROVÁ, T. ALBRECHT, J. BRYJA: Extremely high MHC class I variation in a population of a long-distance migrant, the Scarlet Rosefinch (Carpodacus erythrinus), Immunogenetics 61 (2009) 451-461.

M. ŠÁLEK, J. KREISINGER, F. SEDLÁČEK, T. ALBRECHT: Corridor vs. hayfield matrix use by mammalian predators in an agricultural landscape, Agriculture, Ecosystems and Environment (2009) .

M. VINKLER, T. ALBRECHT: The question waiting to be asked: Innate immunity receptors in the perspective of zoological research, Folia zoologica 58 (2009) 15-28.

M. VINKLER, A. BRYJOVÁ, T. ALBRECHT, J. BRYJA: Identification of the first toll-like receptor gene in passerine birds: TLR4 orthologue in zebra finch (Taeniopygia guttata), Tissue Antigens 74 (2009) 32-41.

2008

J. BRYJA, H. PATZENHAUEROVÁ, T. ALBRECHT, L. MOŠANSKÝ, M. STANKO, P. STOPKA: Varying levels of female promiscuity in four Apodemus mice species, Behavioral Ecology and Sociobiology 63 (2008) 251-260.

D. HOŘÁK, P. KLVAŇA, T. ALBRECHT: Why there is no negative correlation between egg size and number in the Common Pochard?, Acta Oecologica-International Journal of Ecology 33 (2008) .

J. KREISINGER, T. ALBRECHT: Nest protection in mallards Anas platyrhynchos: untangling the role of crypsis and parental behaviour, Functional Ecology 22 (2008) 872-879.

H. L. MAYS JR., T. ALBRECHT, M. LIU, G. E. HILL: Female choice for genetic complementarity in birds: a review, Genetica 134 (2008) 147-158.

J. PIÁLEK, M. VYSKOČILOVÁ, B. BÍMOVÁ, D. HAVELKOVÁ, J. PIÁLKOVÁ, P. DUFKOVÁ, V. BENCOVÁ, Ľ. ĎUREJE, T. ALBRECHT, H. HAUFFE, M. MACHOLÁN, P. MUNCLINGER, R. STORCHOVÁ, A. ZAJÍCOVÁ, V. HOLÁŇ, S. GREGOROVÁ, J. FOREJT: Development of unique house mouse resources suitable for evolutionary studies of speciation, Journal of Heredity 99 (2008) 34-44.

2007

T. ALBRECHT, J. SCHNITZER, J. KREISINGER, A. EXNEROVÁ, J. BRYJA, P. MUNCLINGER: Extrapair paternity and the opportunity for sexual selection in long-distant migratory passerines, Behavioral Ecology 18 (2007) 477-486.

E. CEPÁKOVÁ, M. ŠÁLEK, J. CEPÁK, T. ALBRECHT: Breeding of Little Ringed Plovers Charadrius dubius in farmland: do nests in fields suffer from predation?, Bird Study 54 (2007) 284-288.

D. HOŘÁK, T. ALBRECHT: Using net sacks to examine the relationship between egg size and young size in Common Pochards, Journal of Field Ornithology 78 (2007) 334-339.

D. HOŘÁK, T. ALBRECHT, P. KLVAŇA, P. MUSIL: Inter-nest variability in the egg to hatchling mass ratio in the Common Pochard Aythya ferina: Does female body mass matter?, Acta Ornithologica 42 (2007) 33-38.

R. POLÁKOVÁ, M. VYSKOČILOVÁ, J.-F. MARTIN, H. L. MAYS JR., G. E. HILL, J. BRYJA, T. ALBRECHT: A multiplex set of microsatellite markers for the scarlet rosefinch (Carpodacus erythrinus), Molecular Ecology Notes 7 (2007) 1375-1378.

J. SVOBODOVÁ, M. ŠÁLEK, T. ALBRECHT: Roads do not increase predation on experimental nests in a highly fragmented forest land, Folia zoologica 56 (2007) 84-89.

2006

T. ALBRECHT, D. HOŘÁK, J. KREISINGER, K. WEIDINGER, P. KLVAŇA, T. C. MICHOT: Factors determining pochard nest predation along a wetland gradient, Journal of Wildlife Management 70 (2006) 784-791.

T. ALBRECHT, J. KREISINGER, J. PIÁLEK: The strength of direct selection against female promiscuity is associated with rates of extrapair fertilizations in socially monogamous songbirds, American Naturalist 167 (2006) 739-744.

2005

J. PIÁLEK, T. ALBRECHT: Choosing mates: complementary versus compatible genes, Trends in Ecology & Evolution 20 (2005) .

2004

T. ALBRECHT, P. KLVAŇA: Nest crypsis, reproductive value of a clutch and escape decisions in incubating female mallards Anas platyrhynchos, Ethology 110 (2004) 603-613.

T. ALBRECHT: Edge effect in wetland-arable land boundary determines nesting success of scarlet rosefinches (Carpodacus erythrinus) in the Czech Republic, Auk 121 (2004) 361-371.

J. SVOBODOVÁ, T. ALBRECHT, M. ŠÁLEK: The relationship between predation risk and occurrence of black grouse (Tetrao tetrix) in a highly fragmented landscape: an experiment based on artificial nests, Ecoscience 11 (2004) 421-427.

M. ŠÁLEK, J. SVOBODOVÁ, V. BEJČEK, T. ALBRECHT: Predation on artificial nests in relation to the numbers of small mammals in the Krušné hory Mts, the Czech Republic, Folia zoologica 53 (2004) 312-318.


ČESKY \| ENGLISH
DOMŮ OBECNÉ INFORMACE STRUKTURA ÚBO ZAMĚSTNANCI PUBLIKACE PROJEKTY RADA ÚBO DOZORČÍ RADA ÚBO VÝROČNÍ ZPRÁVY FOLIA ZOOLOGICA AKTUALITY A VÝBĚROVÁ ŘÍZENÍ TISKOVÉ ZPRÁVY KONFERENCE ODKAZY BIENNIAL REPORT	doc. Mgr. Tomáš Albrecht, Ph.D. Pozice: vědecký pracovník Zaměření: Evoluční ekologie, behaviorální ekologie, ekologie ptáků Oddělení: Oddělení ekologie ptáků Telefon: +420 568 423 681 E-mail: albrechtivb.cz Projekty Složky pohlavního výběru monogamního kura koroptve polní Mimopárové paternity a síla sexuální selekce u sociálně monogamního pěvce Post-kopulační pohlavní výběr a biologie spermie: vnitropopulační a mezidruhové procesy u pěvců Variabilita v přerozdělování zdrojů mezi fázemi hnízdního pokusu u kachen Publikace 2012 S. J. E. BAIRD, A. RIBAS, M. MACHOLÁN, T. ALBRECHT, J. PIÁLEK, J. GOÜY DE BELLOCQ: Where are the wormy mice? A re-examination of hybrid parasitism in the European house mouse hybrid zone, Evolution (2012) . V. JAVŮRKOVÁ, A. L. ŠIZLING, J. KREISINGER, T. ALBRECHT: An alternative theoretical approach to escape decision-making: the role of visual cues, PLoS ONE 7 (2012) . M. PROMEROVÁ, W. BABIK, J. BRYJA, T. ALBRECHT, M. STUGLIK, J. RADWAN: Evaluation of two approaches to genotyping major histocompatibility complex class I in a passerine—CE-SSCP and 454 pyrosequencing, Molecular Ecology Resources 12 (2012) 285-292. M. VINKLER, J. SCHNITZER, P. MUNCLINGER, T. ALBRECHT: Phytohaemagglutinin skin-swelling test in scarlet rosefinch males: low-quality birds respond more strongly, Animal Behaviour 83 (2012) . 2011 D. HOŘÁK, O. SEDLÁČEK, A. TÓSZÖGYOVÁ, T. ALBRECHT, M. FERENC, V. JELÍNEK, D. STORCH: Geographic variation in avian clutch size and nest predation risk along a productivity gradient in South Africa, Ostrich 82 (2011) 175-183. V. JAVŮRKOVÁ, D. HOŘÁK, J. KREISINGER, P. KLVAŇA, T. ALBRECHT: Factors affecting sleep/vigilance behaviour in incubating mallards, Ethology 117 (2011) 345-355. M. PROMEROVÁ, M. VINKLER, J. BRYJA, R. POLÁKOVÁ, J. SCHNITZER, P. MUNCLINGER, T. ALBRECHT: Occurrence of extra-pair paternity is connected to social male’s MHC-variability in the scarlet rosefinch Carpodacus erythrinus, Journal of avian biology 42 (2011) 5-10. B. SAK, M. KVÁČ, D. KVĚTOŇOVÁ, T. ALBRECHT, J. PIÁLEK: The first report on natural Enterocytozoon bieneusi and Encephalitozoon spp. infections in wild East-European House Mice (Mus musculus musculus) and West-European House Mice (M. m. domesticus) in a hybrid zone across the Czech Republic–Germany border, Veterinary Parasitology 178 (2011) . J. SVOBODOVÁ, J. KREISINGER, M. ŠÁLEK, M. KOUBOVÁ, T. ALBRECHT: Testing mechanistic explanations for mammalian predator responses to habitat edges, European Journal of Wildlife Research 57 (2011) 467-474. O. ŠŤOVÍČEK, D. ČÍŽKOVÁ, L. YANG, T. ALBRECHT, G. HECKEL, M. VYSKOČILOVÁ, J. KREISINGER: Development of microsatellite markers for a diving duck, the common pochard (Aythya ferina), Conservation genetics resources 3 (2011) 573-576. M. VINKLER, T. ALBRECHT: Handling "immunocompetence" in ecological studies: do we operate with confused terms?, Journal of avian biology 42 (2011) 490-493. M. VINKLER, T. ALBRECHT: Phylogeny, longevity and evolution of adaptive immunity, Folia zoologica 60 (2011) 277-282. 2010 K. DOLEČKOVÁ, T. ALBRECHT, L. MIKEŠ, P. HORÁK: Cathepsins B1 and B2 in the neuropathogenic schistosome Trichobilharzia regenti: distinct gene expression profiles and presumptive roles throughout the life cycle, Parasitology Research 107 (2010) 751-755. J. KREISINGER, P. MUNCLINGER, V. JAVŮRKOVÁ, T. ALBRECHT: Analysis of extra-pair paternity and conspecific brood parasitism in mallards Anas platyrhynchos using non-invasive techniques, Journal of avian biology 41 (2010) 551-557. J. T. LIFJELD, T. LASKEMOEN, O. KLEVEN, T. ALBRECHT, R. J. ROBERTSON: Sperm length variation as a predictor of extrapair paternity in passerine birds, PLoS ONE 5 (2010) . E. PADYŠÁKOVÁ, M. ŠÁLEK, L. POLEDNÍK, F. SEDLÁČEK, T. ALBRECHT: Predation on simulated duck nests in relation to nest density and landscape structure, Wildlife Research 37 (2010) 597-603. M. ŠÁLEK, J. KREISINGER, F. SEDLÁČEK, T. ALBRECHT: Do prey densities determine preferences of mammalian predators for habitat edges in an agricultural landscape?, Landscape and Urban Planning 98 (2010) . M. VINKLER, J. SCHNITZER, P. MUNCLINGER, J. VOTÝPKA, T. ALBRECHT: Haematological health assessment in a passerine with extremely high proportion of basophils in peripheral blood, Journal of Ornithology 151 (2010) 841-849. M. VINKLER, H. BAINOVÁ, T. ALBRECHT: Functional analysis of the skin-swelling response to phytohaemagglutinin, Functional Ecology 24 (2010) 1081-1086. M. VINKLER, T. ALBRECHT: Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health, Naturwissenschaften 97 (2010) 19-28. 2009 T. ALBRECHT, M. VINKLER, J. SCHNITZER, R. POLÁKOVÁ, P. MUNCLINGER, J. BRYJA: Extra-pair fertilizations contribute to selection on secondary male ornamentation in a socially monogamous passerine, Journal of Evolutionary Biology 22 (2009) 2020-2030. B. BÍMOVÁ, T. ALBRECHT, M. MACHOLÁN, J. PIÁLEK: Signalling components of the house mouse mate recognition system, Behavioural Processes 80 (2009) . M. HONZA, R. PIÁLKOVÁ, T. ALBRECHT, Š. NEUŽILOVÁ: Nest defence against conspecific intruders in the common pochard Aythya ferina: natural observations and an experimental test, Acta Ornithologica 44 (2009) 151-158. E. PADYŠÁKOVÁ, M. ŠÁLEK, L. POLEDNÍK, F. SEDLÁČEK, T. ALBRECHT: Removal of American mink increases the success of simulated nests in linear habitat, Wildlife Research 36 (2009) 225-230. M. PROMEROVÁ, T. ALBRECHT, J. BRYJA: Extremely high MHC class I variation in a population of a long-distance migrant, the Scarlet Rosefinch (Carpodacus erythrinus), Immunogenetics 61 (2009) 451-461. M. ŠÁLEK, J. KREISINGER, F. SEDLÁČEK, T. ALBRECHT: Corridor vs. hayfield matrix use by mammalian predators in an agricultural landscape, Agriculture, Ecosystems and Environment (2009) . M. VINKLER, T. ALBRECHT: The question waiting to be asked: Innate immunity receptors in the perspective of zoological research, Folia zoologica 58 (2009) 15-28. M. VINKLER, A. BRYJOVÁ, T. ALBRECHT, J. BRYJA: Identification of the first toll-like receptor gene in passerine birds: TLR4 orthologue in zebra finch (Taeniopygia guttata), Tissue Antigens 74 (2009) 32-41. 2008 J. BRYJA, H. PATZENHAUEROVÁ, T. ALBRECHT, L. MOŠANSKÝ, M. STANKO, P. STOPKA: Varying levels of female promiscuity in four Apodemus mice species, Behavioral Ecology and Sociobiology 63 (2008) 251-260. D. HOŘÁK, P. KLVAŇA, T. ALBRECHT: Why there is no negative correlation between egg size and number in the Common Pochard?, Acta Oecologica-International Journal of Ecology 33 (2008) . J. KREISINGER, T. ALBRECHT: Nest protection in mallards Anas platyrhynchos: untangling the role of crypsis and parental behaviour, Functional Ecology 22 (2008) 872-879. H. L. MAYS JR., T. ALBRECHT, M. LIU, G. E. HILL: Female choice for genetic complementarity in birds: a review, Genetica 134 (2008) 147-158. J. PIÁLEK, M. VYSKOČILOVÁ, B. BÍMOVÁ, D. HAVELKOVÁ, J. PIÁLKOVÁ, P. DUFKOVÁ, V. BENCOVÁ, Ľ. ĎUREJE, T. ALBRECHT, H. HAUFFE, M. MACHOLÁN, P. MUNCLINGER, R. STORCHOVÁ, A. ZAJÍCOVÁ, V. HOLÁŇ, S. GREGOROVÁ, J. FOREJT: Development of unique house mouse resources suitable for evolutionary studies of speciation, Journal of Heredity 99 (2008) 34-44. 2007 T. ALBRECHT, J. SCHNITZER, J. KREISINGER, A. EXNEROVÁ, J. BRYJA, P. MUNCLINGER: Extrapair paternity and the opportunity for sexual selection in long-distant migratory passerines, Behavioral Ecology 18 (2007) 477-486. E. CEPÁKOVÁ, M. ŠÁLEK, J. CEPÁK, T. ALBRECHT: Breeding of Little Ringed Plovers Charadrius dubius in farmland: do nests in fields suffer from predation?, Bird Study 54 (2007) 284-288. D. HOŘÁK, T. ALBRECHT: Using net sacks to examine the relationship between egg size and young size in Common Pochards, Journal of Field Ornithology 78 (2007) 334-339. D. HOŘÁK, T. ALBRECHT, P. KLVAŇA, P. MUSIL: Inter-nest variability in the egg to hatchling mass ratio in the Common Pochard Aythya ferina: Does female body mass matter?, Acta Ornithologica 42 (2007) 33-38. R. POLÁKOVÁ, M. VYSKOČILOVÁ, J.-F. MARTIN, H. L. MAYS JR., G. E. HILL, J. BRYJA, T. ALBRECHT: A multiplex set of microsatellite markers for the scarlet rosefinch (Carpodacus erythrinus), Molecular Ecology Notes 7 (2007) 1375-1378. J. SVOBODOVÁ, M. ŠÁLEK, T. ALBRECHT: Roads do not increase predation on experimental nests in a highly fragmented forest land, Folia zoologica 56 (2007) 84-89. 2006 T. ALBRECHT, D. HOŘÁK, J. KREISINGER, K. WEIDINGER, P. KLVAŇA, T. C. MICHOT: Factors determining pochard nest predation along a wetland gradient, Journal of Wildlife Management 70 (2006) 784-791. T. ALBRECHT, J. KREISINGER, J. PIÁLEK: The strength of direct selection against female promiscuity is associated with rates of extrapair fertilizations in socially monogamous songbirds, American Naturalist 167 (2006) 739-744. 2005 J. PIÁLEK, T. ALBRECHT: Choosing mates: complementary versus compatible genes, Trends in Ecology & Evolution 20 (2005) . 2004 T. ALBRECHT, P. KLVAŇA: Nest crypsis, reproductive value of a clutch and escape decisions in incubating female mallards Anas platyrhynchos, Ethology 110 (2004) 603-613. T. ALBRECHT: Edge effect in wetland-arable land boundary determines nesting success of scarlet rosefinches (Carpodacus erythrinus) in the Czech Republic, Auk 121 (2004) 361-371. J. SVOBODOVÁ, T. ALBRECHT, M. ŠÁLEK: The relationship between predation risk and occurrence of black grouse (Tetrao tetrix) in a highly fragmented landscape: an experiment based on artificial nests, Ecoscience 11 (2004) 421-427. M. ŠÁLEK, J. SVOBODOVÁ, V. BEJČEK, T. ALBRECHT: Predation on artificial nests in relation to the numbers of small mammals in the Krušné hory Mts, the Czech Republic, Folia zoologica 53 (2004) 312-318.