3,472 research outputs found
R.C. Farrell Store
No full textPhotograph - People standing in front of R.C. Farrell, General Merchant store, Athabasca, Alberta. Left to right: Lance Smith, Louis Menard, Romeo Farrell, Athela LaRue Farrell, and Ray Vari
A Review of: Biobloc Therapy, by John R.C. Mew
No full textThis text, written and published by its British author, John R.C. Mew, details an integrated orthodontic and orofacial myofunctional treatment approach entitled Biobloc Therapy [...
Experimental Research and Numerical Analysis on the Law of Deteriorated Performance for R.C. Frame Structure with Seismic Damages under Elevated Temperature (part II)
No full textThe cracks were pre-settled to the R.C. frame structure caused by earthquake which was defined as the damage index ω during the modeling process with analysis software-ANASYS. The temperature field contour curve were calculated for the column and beam, the law of deteriorated bearing capacity with time for the R.C. frame structure under elevated temperature were brought forward，which can adapt to R.C. frame structure with different damage index ω caused by earthquake.The relationship between ω and deteriorated bearing capacity for R.C. frame structure was also given, which was proved to be effective and correct according to comparison with the data recorded from the elevated temperature experiment designed by author.</jats:p
Experimental and numerical analysis of the cyclic behaviour of RC beam-column connections with plain reinforcing bars
No full textThe information available in the literature about the cyclic behaviour of reinforced concrete elements with plain reinforcing bars is scarce. As a consequence, the influence of bar slippage in elements with plain bars is not yet comprehensively understood. In this paper are presented and discussed the main results of the cyclic tests carried out on five full-scale reinforced concrete beam-column joints with plain bars and without specific detailing for seismic demands. An additional joint specimen with deformed bars was also tested for comparison. Furthermore, numerical models were built to simulate the response of two of the specimens. Particular attention was given to the influence of bar slippage. The results of the conducted analyses underline the importance of accounting for bond-slip in the numerical modelling of elements with plain bars and also highlight the need for specific models to simulate the effects of this mechanism in the presence of plain bars
The Amazonian Fruit Byrsonima Crassifolia Effectively Scavenges Reactive Oxygen And Nitrogen Species And Protects Human Erythrocytes Against Oxidative Damage
No full textA hydrophilic extract of murici (Byrsonima crassifolia), a fruit native to the North and Northeast regions of Brazil, was evaluated in relation to its phenolic composition and in vitro antioxidant potential against some physiologically relevant reactive oxygen and nitrogen species. Additionally, the protective effect of murici extract against peroxyl radical (ROO)-induced toxicity to human erythrocytes was also determined. The major phenolic compound, determined by HPLC-DAD-MSn, was quercetin (2.72 ± 0.35μg/mL). The extract was able to scavenge ROO (0.30 ± 0.04μmoltroloxequivalent/mg), hypochlorous acid (IC50=10.0 ± 0.1μg/mL), hydroxyl radical (IC50=7 ± 1μg/mL) and peroxynitrite anion (IC50=21.0 ± 0.6μg/mL and 17.0 ± 1.6μg/mL, respectively, in absence and presence of NaHCO3). Human erythrocytes were subjected to oxidative damage, but murici extract was not able to inhibit hemolysis, even at the highest tested concentration. On the other hand, the extract inhibited hemoglobin oxidation (IC50=271 ± 44μg/mL), lipid peroxidation (1000μg/mL) by 48 ± 5%, depletion of glutathione (100μg/mL) by 49 ± 2% and formation of its oxidized form (100μg/mL) by 96 ± 4%.64618625Ajila, C.M., Prasada-Rao, U.J.S., Protection against hydrogen peroxide induced oxidative damage in rat erythrocytes by Mangifera indica L. peel extract (2008) Food and Chemical Toxicology, 46, pp. 303-309Almeida, I.F., Fernandes, E., Lima, J.L.F.C., Costa, P.C., Bahia, M.F., Walnut (Juglans regia) leaf extracts are strong scavengers of pro-oxidant reactive species (2008) Food Chemistry, 106, pp. 1014-1020Almeida, I.F., Fernandes, E., Lima, J.L.F.C., Costa, P.C., Bahia, M.F., Protective effect of Castanea sativa and Quercus robur leaf extracts against oxygen and nitrogen reactive species (2008) Journal of Photochemistry and Photobiology B, 91, pp. 87-95Almeida, M.M.B., Sousa, P.H.M., Arriaga, A.M.C., Prado, G.M., Magalhães, C.E.C., Maia, G.A., Bioactive compounds and antioxidant activity of fresh exotic fruits from northeastern Brazil (2011) Food Research International, 44, pp. 2155-2159Anouar, E., Kosinová, P., Kozlowski, D., Mokrini, R., Duroux, J.L., Trouillas, P., New aspects of the antioxidant properties of phenolic acids: A combined theoretical and experimental approach (2009) Physical Chemistry Chemical Physics, 11, pp. 7659-7668Chisté, R.C., Freitas, M., Mercadante, A.Z., Fernandes, E., The potential of extracts of Caryocar villosum pulp to scavenge reactive oxygen and nitrogen species (2012) Food Chemistry, 135, pp. 1470-1749Chisté, R.C., Freitas, M., Mercadante, A.Z., Fernandes, E., Carotenoids inhibit lipid peroxidation and hemoglobin oxidation, but not the depletion of glutathione induced by ROS in human erythrocytes (2014) Life Sciences, 99, pp. 52-60Chisté, R.C., Freitas, M., Mercadante, A.Z., Fernandes, E., Carotenoids are effective inhibitors of in vitro hemolysis of human erythrocytes, as determined by a practical and optimized cellular antioxidant assay (2014) Journal of Food ScienceChisté, R.C., Mercadante, A.Z., Identification and quantification, by HPLC-DAD-MS/MS, of carotenoids and phenolic compounds from the Amazonian fruit Caryocar villosum (2012) Journal of Agricultural and Food Chemistry, 60, pp. 5884-5892Choi, J.S., Chung, H.Y., Kang, S.S., Jung, M.J., Kim, J.W., No, J.K., The structure-activity relationship of flavonoids as scavengers of peroxynitrite (2002) Phytotherapy Research, 16, pp. 232-235Clifford, M.N., Stoupi, S., Kuhnert, N., Profiling and characterization by LC-MSn of the galloylquinic acids of green tea, tara tannin, and tannic acid (2007) Journal of Agricultural and Food Chemistry, 55, pp. 2797-2807Costa, D., Marques, A.P., Reis, R.L., Lima, J.L.F.C., Fernandes, E., Inhibition of human neutrophil oxidative burst by pyrazolone derivatives (2006) Free Radical Biology & Medicine, 40, pp. 632-640Cuyckens, F., Claeys, M., Mass spectrometry in the structural analysis of flavonoids (2004) Journal of Mass Spectrometry, 39, pp. 1-15Dwight, J., Hendry, B.M., The effects of tert-butyl hydroperoxide on human erythrocyte membrane ion transport and the protective actions of antioxidants (1996) Clinica Chimica Acta, 249, pp. 167-181Friedrich, W., Eberhardt, A., Galensa, R., Investigation of proanthocyanidins by HPLC with electrospray ionization mass spectrometry (2000) European Food Research and Technology, 211, pp. 56-64Gomes, A., Fernandes, E., Silva, A.M.S., Santos, C.M.M., Pinto, D.C.G.A., Cavaleiro, J.A.S., 2-Styrylchromones: Novel strong scavengers of reactive oxygen and nitrogen species (2007) Bioorganic & Medicinal Chemistry, 15, pp. 6027-6036Gordon, A., Jungfer, E., Silva, B.A., Maia, J.G.S., Marx, F., Phenolic constituents and antioxidant capacity of four underutilized fruits from the Amazon region (2011) Journal of Agricultural and Food Chemistry, 59, pp. 7688-7699Guilhon-Simplicio, F., Pereira, M.M., Aspectos químicos e farmacológicos de Byrsonima (Malpighiaceae) (2011) Quimica Nova, 34, pp. 1032-1041Herrera-Ruiz, M., Zamilpa, A., González-Cortazar, M., Reyes-Chilpa, R., León, E., García, M.P., Antidepressant effect and pharmacological evaluation of standardized extract of flavonoids from Byrsonima crassifolia (2011) Phytomedicine, 18, pp. 1255-1261Ko, F.N., Hsiao, G., Kuo, Y.H., Protection of oxidative hemolysis bydemethyldiisoeugenol in normal and β-thalassemic red blood cells (1997) Free Radical Biology & Medicine, 22, pp. 215-222Lowry, O.H., Rosebrough, N.J., Farr, A.L., Randall, R.J., Protein measurement with the Folin phenol reagent (1951) The Journal of Biological Chemistry, 193, pp. 265-275Maldini, M., Montoro, P., Pizza, C., Phenolic compounds from Byrsonima crassifolia L. bark: Phytochemical investigation and quantitative analysis by LC-ESI MS/MS (2011) Journal of Pharmaceutical and Biomedical Analysis, 56, pp. 1-6Maldini, M., Sosa, S., Montoro, P., Giangaspero, A., Balick, M.J., Pizza, C., Screening of the topical anti-inflammatory activity of the bark of Acacia cornigera Willdenow, Byrsonima crassifolia Kunth, Sweetia panamensis Yakovlev and the leaves of Sphagneticola trilobata Hitchcock (2009) Journal of Ethnopharmacology, 122, pp. 430-433Mariutti, L.R.B., Rodrigues, E., Mercadante, A.Z., Carotenoids from Byrsonima crassifolia: Identification, quantification and in vitro scavenging capacity against peroxyl radicals (2013) Journal of Food Composition and Analysis, 31, pp. 155-160Martínez-Vásquez, M., González-Esquinca, A.R., Cazares Luna, L., Moreno-Gutiérrez, M.N., García-Argáez, A.N., Antimicrobial activity of Byrsonima crassifolia (L.) H.B.K. (1999) Journal of Ethnopharmacology, 66, pp. 79-82Ou, B., Hampsch-Woodill, M., Prior, R.L., Development and validation of an improved oxygen radical absorbance capacity assay using fluorescein as the fluorescent probe (2011) Journal of Agricultural and Food Chemistry, 49, pp. 4619-4626Perez-Gutierrez, R.M., Muñiz-Ramirez, A., Gomez, Y.G., Ramírez, E.B., Antihyperglycemic, antihyperlipidemic and antiglycation effects of Byrsonima crassifolia fruit and seed in normal and streptozotocin-induced diabetic rats (2010) Plant Foods for Human Nutrition, 65, pp. 350-357Rodrigues, N.P., Benassi, M.T., Bragagnolo, N., Scavenging capacity of coffee brews against oxygen and nitrogen reactive species and the correlation with the bioactive compounds by multivariate analysis (2014) Food Research International, 61, pp. 228-235Rodrigues, E., Mariutti, L.R.B., Faria, A.F., Mercadante, A.Z., Microcapsules containing antioxidant molecules as scavengers of reactive oxygen and nitrogen species (2012) Food Chemistry, 134, pp. 704-711Rodrigues, E., Mariutti, L.R.B., Mercadante, A.Z., Carotenoids and phenolic compounds from Solanum sessiliflorum, an unexploited Amazonian fruit, and their scavenging capacities against reactive oxygen and nitrogen species (2013) Journal of Agricultural and Food Chemistry, 61, pp. 3022-3029Rufino, M.S.M., Fernandes, F.A.N., Alves, R.E., Brito, E.S., Free radical-scavenging behavior of some north-east Brazilian fruits in a DPPH-system (2009) Food Chemistry, 114, pp. 693-695Sandhu, A.K., Gu, L., Antioxidant capacity, phenolic content, and profiling of phenolic compounds in the seeds, skin, and pulp of Vitis rotundifolia (Muscadine grapes) as determined by HPLC-DAD-ESI-MSn (2010) Journal of Agricultural and Food Chemistry, 58, pp. 4681-4692Sentandreu, E., Cerdán-Calero, M., Sendra, J.M., Phenolic profile characterization of pomegranate (Punica granatum) juice by high-performance liquid chromatography with diode array detection coupled to an electrospray ion trap mass analyzer (2013) Journal of Food Composition and Analysis, 30, pp. 32-40Silva, E.M., Souza, J.N.S., Rogez, H., Rees, J.F., Larondelle, Y., Antioxidant activities and polyphenolic contents of fifteen selected plant species from the Amazonian region (2007) Food Chemistry, 101, pp. 1012-1018Singleton, V.L., Rossi, J.A., Colorimetry of total phenolics with phosphomolybdic-phosphotungstic acid reagents (1965) American Journal of Enology and Viticulture, 16, pp. 144-158Sivilotti, M.L.A., Oxidant stress and haemolysis of the human erythrocyte (2004) Toxicological Reviews, 23, pp. 169-188Souza, J.N.S., Silva, E.M., Loir, A., Rees, J.F., Rogez, H., Larondelle, Y., Antioxidant capacity of four polyphenol-rich Amazonian plant extracts: A correlation study using chemical and biological in vitro assays (2008) Food Chemistry, 106, pp. 331-339Winterbourn, C.C., Reconciling the chemistry and biology of reactive oxygen species (2008) Nature Chemical Biology, 4, pp. 278-286Zitka, O., Skalickova, S., Gumulec, J., Masarik, M., Adam, V., Hubalek, J., Redox status expressed as GSH:GSSG ratio as a marker for oxidative stress in paediatric tumour patients (2012) Oncology Letters, 4, pp. 1247-1253Zou, C.G., Agar, N.S., Jones, G.L., Oxidative insult to human red blood cells induced by free radical initiator AAPH and its inhibition by a commercial antioxidant mixture (2001) Life Sciences, 69, pp. 75-8
Internal Friction in The Region of The Grain Boundary Peaks in Pure Zirconium and Dilute Zirconium Alloys
No full textTitle: Internal Friction in The Region of The Grain Boundary Peaks in Pure Zirconium and Dilute Zirconium Alloys, Author: R.C. Robinson, Location: ThodeInternal friction, in the region of the
grain boundary peaks, has been examined in nominally
pure zirconium and dilute zirconium alloys. Experimental
observations were made using both torsion and
reed internal friction pendulums. The effect of various
heat treatments on the peaks were investigated. Strain
amplitude dependent damping in the region of the Low
Temperature Peak was observed. A qualitative model
is presented to explain the experimental observations.ThesisMaster of Engineering (ME
De Fast-Fourier Transform: Het gebruik van de routine van R.C. Singleton
No full textDoel van dit rapport is de lezer inzicht te verschaffen in het gebruik van de FFT-routine van R.C. Singleton zoals die in het rekencentrum van de T.H. - Delft in gebruik is. Voor een beschrijving van de werking van deze routine wordt verwezen naar het in de literatuurlijst vermelde artikel van Singleton (Lit. 1). Met nadruk wordt erop gewezen dat er meerdere FFT-routines in omloop zijn die alle anders werken en daarom in gebruik kunnen verschillen. Het onderhavige rapport beschrijft uitsluitend het gebruik van de routine van Singleton. Als laatste punt in deze inleiding wordt speciaal het boek van Brigham genoemd (Lit. 2) waarin zeer veel informatie te vinden is over het gebruik van de FFT-methodeHydraulic EngineeringCivil Engineering and Geoscience
Carotenoids Are Effective Inhibitors Of In Vitro Hemolysis Of Human Erythrocytes, As Determined By A Practical And Optimized Cellular Antioxidant Assay
No full textβ-Carotene, zeaxanthin, lutein, β-cryptoxanthin, and lycopene are liposoluble pigments widely distributed in vegetables and fruits and, after ingestion, these compounds are usually detected in human blood plasma. In this study, we evaluated their potential to inhibit hemolysis of human erythrocytes, as mediated by the toxicity of peroxyl radicals (ROO•). Thus, 2,2'-azobis (2-methylpropionamidine) dihydrochloride (AAPH) was used as ROO• generator and the hemolysis assay was carried out in experimental conditions optimized by response surface methodology, and successfully adapted to microplate assay. The optimized conditions were verified at 30 × 106 cells/mL, 17 mM of AAPH for 3 h, at which 48 ± 5% of hemolysis was achieved in freshly isolated erythrocytes. Among the tested carotenoids, lycopene (IC50 = 0.24 ± 0.05 μM) was the most efficient to prevent the hemolysis, followed by β-carotene (0.32 ± 0.02 μM), lutein (0.38 ± 0.02 μM), and zeaxanthin (0.43 ± 0.02 μM). These carotenoids were at least 5 times more effective than quercetin, trolox, and ascorbic acid (positive controls). β-Cryptoxanthin did not present any erythroprotective effect, but rather induced a hemolytic effect at the highest tested concentration (3 μM). These results suggest that selected carotenoids may have potential to act as important erythroprotective agents by preventing ROO•-induced toxicity in human erythrocytes. Practical Application: Selected carotenoids may have potential to be used in the development of phytopharmaceutical products as important erythroprotective agents by preventing ROO•-induced toxicity in human erythrocytes.799H1841H1847Banerjee, A., Kunwar, A., Mishra, B., Priyadarsini, K.I., Concentration dependent antioxidant/pro-oxidant activity of curcumin Studies from AAPH induced hemolysis of RBCs (2008) Chem-Biol Interact, 174 (2), pp. 134-139Chisté, R.C., Mercadante, A.Z., Gomes, A., Fernandes, E., Lima, J.L.F.D., Bragagnolo, N., In vitro scavenging capacity of annatto seed extracts against reactive oxygen and nitrogen species (2011) Food Chem, 127 (2), pp. 419-426Chisté, R.C., Freitas, M., Mercadante, A.Z., Fernandes, E., The potential of extracts of Caryocar villosum pulp to scavenge reactive oxygen and nitrogen species (2012) Food Chem, 135 (3), pp. 1740-1749Chisté, R.C., Freitas, M., Mercadante, A.Z., Fernandes, E., Carotenoids inhibit lipid peroxidation and hemoglobin oxidation, but not the depletion of glutathione induced by ROS in human erythrocytes (2014) Life Sci, 99 (1-2), pp. 52-60Di Mascio, P., Kaiser, S., Sies, H., Lycopene as the most efficient biological carotenoid singlet oxygen quencher (1989) Arch Biochem Biophys, 274 (2), pp. 532-538El-Agamey, A., Lowe, G.M., McGarvey, D.J., Mortensen, A., Phillip, D.M., Truscott, T.G., Young, A.J., Carotenoid radical chemistry and antioxidant/pro-oxidant properties (2004) Arch Biochem Biophys, 430 (1), pp. 37-48Guo, J.J., Hu, C.H., Mechanism of chain termination in lipid peroxidation by carotenes: a theoretical study (2010) J Phys Chem B, 114 (50), pp. 16948-16958Jomova, K., Kysel, O., Madden, J.C., Morris, H., Enoch, S.J., Budzak, S., Young, A.J., Valko, M., Electron transfer from all-trans- β-carotene to the t-butyl peroxyl radical at low oxygen pressure (an EPR spectroscopy and computational study) (2009) Chem Phys Lett, 478 (4-6), pp. 266-270Kiko, T., Nakagawa, K., Tsuduki, T., Suzuki, T., Arai, H., Miyazawa, T., Significance of lutein in red blood cells of Alzheimer's disease patients (2012) J Alzheimers Dis, 28 (3), pp. 593-600Ko, F.N., Hsiao, G., Kuo, Y.H., Protection of oxidative hemolysis by demethyldiisoeugenol in normal and β-thalassemic red blood cells (1997) Free Radical Bio Med, 22 (1-2), pp. 215-222Kok, T.M.C.M., de Waard, P., Wilms, L.C., van Breda, S.G.J., Antioxidative and antigenotoxic properties of vegetables and dietary phytochemicals: the value of genomics biomarkers in molecular epidemiology (2010) Mol Nutr Food Res, 54 (2), pp. 208-217Lian, F.Z., Hu, K.Q., Russell, R.M., Wang, X.D., β-Cryptoxanthin suppresses the growth of immortalized human bronchial epithelial cells and non-small-cell lung cancer cells and up-regulates retinoic acid receptor β expression (2006) Int J Cancer, 119 (9), pp. 2084-2089Lorenzo, Y., Azqueta, A., Luna, L., Bonilla, F., Dominguez, G., Collins, A.R., The carotenoid b-cryptoxanthin stimulates the repair of DNA oxidation damage in addition to acting as an antioxidant in human cells (2009) Carcinogenesis, 30 (2), pp. 308-314Magalhães, A.S., Silva, B.M., Pereira, J.A., Andrade, P.B., Valentao, P., Carvalho, M., Protective effect of quince (Cydonia oblonga Miller) fruit against oxidative hemolysis of human erythrocytes (2009) Food Chem Toxicol, 47 (6), pp. 1372-1377Miyazawa, T., Suzuki, T., Yasuda, K., Fujimoto, K., Meguro, K., Sasaki, H., Accumulation of phospholipid hydroperoxides in red blood cell membranes in Alzheimer disease (1992) Oxygen Radicals, pp. 327-330. , Yagi, K., Kondo, M., Niki, E., Yoshikawa, T., editors Amsterdam: Elsevier Science PublishingMüller, L., Theile, K., Böhm, V., In vitro antioxidant activity of tocopherols and tocotrienols and comparison of vitamin E concentration and lipophilic antioxidant capacity in human plasma (2010) Mol Nutr Food Res, 54 (5), pp. 731-742Naguib, Y.M.A., Antioxidant activities of astaxanthin and related carotenoids (2000) J Agric Food Chem, 48 (4), pp. 1150-1154Nakagawa, K., Kiko, T., Hatade, K., Asai, A., Kimura, F., Sookwong, P., Tsuduki, T., Miyazawa, T., Development of a high-performance liquid chromatography-based assay for carotenoids in human red blood cells: application to clinical studies (2008) Anal Biochem, 381 (1), pp. 129-134Niki, E., Free-radical initiators as source of water-soluble or lipid-soluble peroxyl radicals (1990) Method Enzymol, 186, pp. 100-108Niki, E., Action of ascorbic-acid as a scavenger of active and stable oxygen radicals (1991) Am J Clin Nutr, 54 (6), pp. S1119-S1124Ou, B.X., Hampsch-Woodill, M., Prior, R.L., Development and validation of an improved oxygen radical absorbance capacity assay using fluorescein as the fluorescent probe (2001) J Agric Food Chem, 49 (10), pp. 4619-4626Rodrigues, E., Mariutti, L.R.B., Chiste, R.C., Mercadante, A.Z., Development of a novel micro-assay for evaluation of peroxyl radical scavenger capacity: Application to carotenoids and structure-activity relationship (2012) Food Chem, 135 (3), pp. 2103-2111Sato, Y., Kamo, S., Takahashi, T., Suzuki, Y., Mechanism of free radical-induced hemolysis of human erythrocytes-hemolysis by water-soluble radical initiator (1995) Biochemistry, 34 (28), pp. 8940-8949Silva, B.M., Santos, R.P., Mendes, L.S., de Pinho, P.G., Valentao, P., Andrade, P.B., Pereira, J.A., Carvalho, M., Dracaena draco L. fruit: phytochemical and antioxidant activity assessment (2011) Food Res Int, 44 (7), pp. 2182-2189Sundaram, S., Anjum, S., Dwivedi, P., Rai, G.K., Antioxidant activity and protective effect of banana peel against oxidative hemolysis of human erythrocyte at different stages of ripening (2011) Appl Biochem Biotech, 164 (7), pp. 1192-1206Zou, C.G., Agar, N.S., Jones, G.L., Oxidative insult to human red blood cells induced by free radical initiator AAPH and its inhibition by a commercial antioxidant mixture (2001) Life Sci, 69 (1), pp. 75-8
The Challenge of Reversing Theories to Hybridize Structures with Fiber Metal Laminate Design Concepts
No full textTo further optimize aeronautical structures, an increased level of material hybridization is required. Optimization efforts aim to identify optimal design solutions that satisfy prescribed requirements. However, this demands reversal of currently available knowledge on hybrid structural technologies, which are often formulated as theories predicting performance based on known load cases and selected material configurations. After briefly reviewing the available fundamental theories for strength, fatigue, and damage tolerance of hybrid structures, this paper discusses the challenges in reversing these theories. Solutions are proposed in which theories can be approximated to significantly reduce the computational time while maintaining the required level of accuracy.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Structural Integrity & Composite
Cyclic response of RC beam-column joints reinforced with plain bars: an experimental testing campaign
No full textExisting reinforced concrete (RC) buildings constructed until the mid-70’s, with plain reinforcing bars, are expected to behave poorly when subjected to earthquake actions. This paper describes an experimental program designed to investigate the influence of poor detailing on the cyclic behaviour of RC beam-column joint elements.
Cyclic tests were performed on five interior and five exterior full-scale beam-column joints with different detailing characteristics and reinforced with plain bars. An additional joint of each type was built with deformed bars for an evaluation of the influence of bond properties on the cyclic response of the structural element. The force-displacement global response, energy dissipation, equivalent damping and damage behaviour of the joints was investigated and the main results are presented and discussed. The experimental results indicate that the bond-slip mechanism has significantly influenced the cyclic response of the beam-column joints. The specimens built with plain bars showed lower energy dissipation, stiffness and equivalent damping
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