Designing And Validating The Methodology For The Internet Assessment Of Fish Consumption At A University Setting

Assessing fish consumption is complex and involves several factors; however, the use of questionnaires in surveys and the use of the Internet as tool to collect data have been considered promising approaches. Therefore, the objective of this research was to design a data collection technique using a questionnaire to assess fish consumption by making it available on a specific home page on the Internet. A bibliographical survey or review was carried out to identify the features of the instrument, and therefore pre-tests were conducted with previous instruments, followed by the Focus Group technique. Specialists then performed an analysis and conducted an online pre-test. Multivariate data analysis was applied using the SmartPLS software. The results indicate that 1.966 participants belonging to the University of São Paulo (USP) community participated in the test, and after the exclusion of some variables, a statistically significant results were obtained. The final constructs comprised consumption, quality, and general characteristics. The instrument consisted of behavioral statements in a 5-point Likert scale and multiple-choice questions. The Cronbach's alpha reliability coefficient was 0.66 for general characteristics, 0.98 for quality, and 0.91 for consumption, which indicate good reliability of the instrument. In conclusion, the results proved that the Internet assessment is efficient. The instrument of analysis allowed us to better understand the process of buying and consuming fish in the country, and it can be used as base for further research.342315323Bargas-Avila, J.A., Lotscher, J., Orsini, S., Opwis, K., Intranet satisfaction questionnaire: Development and validation of a questionnaire to measure user satisfaction with the Intranet (2009) Computers In Human Behavior, 25 (6), pp. 1241-1250. , http://dx.doi.org/10.1016/j.chb.2009.05.014Batagelj, Z., Vehovar, V., Technical and methodological issues in surveys (1998) Proceedings of the 53° Annual Conference of the American Association For Public Opinion Research (AAPOR), , http://www.ris.org/ris98/stlouis, St. Louis. Retrieved fromBliven, B., Kaufman, S., Spertus, J.A., Electronic collection of health-related quality of life data: Validity, time, benefits and patient preference (2001) Quality Life Research, 10 (1), pp. 15-22. , http://dx.doi.org/10.1023/A:1016740312904Boeckner, L., Pullen, S.C.H., Walker, S.N., Abbott, G.W., Block, T., Use and realiability of Word Wide Web Version of the block health habits and history questionnaire with older rural women (2002) Journal of Nutrition Education and Behavior, 34, pp. S20-S24. , http://dx.doi.org/10.1016/S1499-4046(06)60307-2Cantrell, M.A., Lupinacci, P., Methodological issues in online data collection (2007) Journal of Advanced Nursing, 60 (5), pp. 544-549. , http://dx.doi.org/10.1111/j.1365-2648.2007.04448.xChang, L., Krosnick, J.A., Comparing oral interviewing with self-administered computerized questionnaires an experiment (2010) Public Opinion Quarterly, 74 (1), pp. 154-167. , http://dx.doi.org/10.1093/poq/nfp090Chin, W.W., The partial least squares approach to structural equation modeling (1998) Modern Methods For Business Research, pp. 295-336. , In G. A. Marcoulides (Ed.), Mahwah: Lawrence Erlbaum AssociatesCronk, B.C., West, J.L., Personality research on the Internet: A comparison of web based and traditional instruments in take-home and in-class settings (2002) Behavior Research Methods Instruments and Computers, 34 (2), pp. 177-180. , http://dx.doi.org/10.3758/BF03195440Falk, R.F., Miller, N.B., (1992) A Primer For Soft Modeling, , New York: Akron Presshttp://www.brasilfoodtrends.com.br/Brasil_Food_Trends/index.html, Federação das Industrias do Estado de São Paulo-FIESP. (2010), Brasil food trends, São Paulo: FIESP. Retrieved fromFerri, P., Cavalli, N., Costa, E., Mangiatordi, A., Mizzella, S., Pozzali, A., Scenini, F., Italian university students and digital technologies: Some results from a field research (2009) Communications In Computer and Information Science, 49 (3), pp. 357-365. , http://dx.doi.org/10.1007/978-3-642-04757-2_38(2009) The State of World Fisheries and Aquaculture (SOFIA), , Food and Agriculture Organization of the United Nations-FAO, Rome: FAOGefen, D., Straub, D.W., Boudreau, M.C., Structural equation modeling and regression: Guidelines for research practice (2009) Communications of the Association For Information Systems, 4 (1), pp. 1-77Hair Jr., J.F., Black, W.C., Babin, B.J., Anderson, R.E., Tatham, R.L., (2009) Análise Multivariada De Dados, , 6. ed.). Porto Alegre: BookmanHanning, R.M.D., Royall, J.E., Toews, L., Blashill, L., Wegener, J., Driezen, P., Web-based food behaviour questionnaire: Validation with grades six to eight students (2009) Canadian Journal of Dietetic Practice and Research, 70, pp. 172-178. , http://dx.doi.org/10.3148/70.4.2009.172Hanscom, B., Lurie, J.D., Homa, K., Weinstein, J., Computerized questionnaires and the quality of survey data (2002) Spine, 27 (6), pp. 1797-1801. , http://dx.doi.org/10.1097/00007632-200208150-00020Hershberger, S.L., Marcoulides, G.A., Parramore, M.M., Structural equation modeling: An introduction (2003) Structural Equation Modeling: Applications In Ecological and Evolutionary Biology, , http://dx.doi.org/10.1017/CBO9780511542138.002, In B. H. Pugesek, A. Tomer & A. V. Eye (Eds.), Cambridge: Cambridge University PressKlem, L., Structural equation modeling (2006) Reading and Understanding More Multivariate Statistics, pp. 227-260. , In L. G. Grimm & P. R. Yarnold (Eds.), Washington: American Psychological AssociationMalhotra, N., (2008) Pesquisa De Marketing: Uma Orientação Aplicada, , 5. ed.). Porto Alegre: BookmanMaruayama, G.M., (1998) Basic of Structural Equation Modeling, , Thousand Oaks: Sage PublicationsMatthys, C., Pynaert, I., de Keyzer, W., Henauw, S., Validity and reproducibility of an adolescent Web-based food frequency questionnaire (2007) Journal of the American Dietetic Association, 107 (4), pp. 605-610. , http://dx.doi.org/10.1016/j.jada.2007.01.005Mina, K., Fritschi, L., Knuiman, M., A valid semiquantitative food frequency questionnaire to measure fish consumption (2007) European Journal of Clinical Nutrition, 61, pp. 1023-1031. , http://dx.doi.org/10.1038/sj.ejcn.1602617Morgan, D., (1997) Focus Group As Qualitative Research, pp. 80-88. , London: Sage Publications. Qualitative Research Methods Series 16Mueller, R.O., Structural equation modeling: Back to basics (1997) Structural Equation Modeling, 4 (4), pp. 353-369. , http://dx.doi.org/10.1080/10705519709540081Oetterer, M., (2002) Industrialização Do Pescado Cultivado, , Guaíba: AgropecuáriaPasquali, L., (2003) Psicometria: Teoria Dos Testes Na Psicologia E Na Educação, , Petrópolis: VozesPerez, G., Zwicker, R., Fatores determinantes da adoção de sistemas de informação na área de saúde: Um estudo sobre o prontuário médico eletrônico (2010) Revista De Administração Mackenzie, 11 (1), pp. 174-200. , http://dx.doi.org/10.1590/S1678-69712010000100008Ribeiro, R.C.L., Panato, E., Silva, M.M.S., Rosado, L.E.F., Rosado, G.P., Validade relativa de um questionário de freqüência alimentar para utilização em adultos (2009) Revista De Nutrição, 22 (1), pp. 81-95. , http://dx.doi.org/10.1590/S1415-52732009000100008Rodrigues, D.S., Ramos, R.A.R., Mendes, J.F.G., A system to evaluate and monitor quality of life in a University Campus (2005) Proceedings of the 9th International Conference On Computers In Urban Planning and Urban Management (CUPUM), , http://repositorium.sdum.uminho.pt/bitstream/1822/5064/1/Rodrigues_CI_1_2005.pdf, London. Retrieved fromSantos, F.V., (2001) A Importância Da Atividade Física Na Qualidade De Vida Disseminada Numa Página Da Internet (Dissertação De Mestrado), , Universidade Federal de Santa Catarina, FlorianópolisSirot, V., Dumas, C., Leblanc, J.C., Margarit, I., Food and nutrient intakes of French frequent seafood consumers with regard to fish consumption recommendations: Results from the CALIPSO study (2011) British Journal of Nutrition, 105 (9), pp. 1369-1380. , http://dx.doi.org/10.1017/S0007114510005027Sonoda, D.Y., (2006) Demanda Por Pescado No Brasil Entre 2002 E 2003, , Tese de doutorado). Universidade de São Paulo, PiracicabaSoriano, J.M., Molto, J.C., Manes, J., Dietary intake and food pattern among university students (2000) Nutrition Research, 20 (9), pp. 1249-1258. , http://dx.doi.org/10.1016/S0271-5317(00)00217-7Stanton, J.M., Rogelberg, S.G., Using Internet/intranet web pages to collect organizational research data (2001) Organizational Research Methods, 4 (3), pp. 200-217. , http://dx.doi.org/10.1177/109442810143002Touvier, M., Kesse-Guyot, E., Méjean, C., Pollet, C., Malon, A., Castetbon, K., Hercberg, S., Comparison between an interactive web-based self-administered 24 h dietary record and an interview by a dietitian for large-scale epidemiological studies (2001) British Journal of Nutrition, 105 (7), pp. 1055-1064. , http://dx.doi.org/10.1017/S0007114510004617Trondsen, T., Scholderer, J., Lund, E., Lund, E., Eggen, A., Perceived barriers to consumption of fish among Norwegian women (2003) Appetite, 41 (3), pp. 301-314. , http://dx.doi.org/10.1016/S0195-6663(03)00108-9(2010) Anuário Estatístico, , http://sistemas3.usp.br/anuario, Universidade de São Paulo-USP, Brasil: USP. Retrieved fromVanderslice, J., Laflamme, D.M., Wynkoop-Simmons, K., Comparing fish consumption information collected via a telephone survey and a food frequency questionnaire (2008) Epidemiology, 19 (6), pp. S315Veiga, L., Gondim, S.M.G., A utilização de métodos qualitativos na ciência política e no marketing político (2001) Opinião Pública, 2 (1), pp. 1-15Vinholis, M.M.B., Azevedo, P.F., Segurança do alimento e rastreabilidade: O caso BSE (2002) RAE Eletrônica, 1 (2), pp. 1-19. , http://dx.doi.org/10.1590/S1676-56482002000200008Zwicker, R., Souza, C.A., Bido, D.S., (2008) Uma Revisão Do Modelo Do Grau De Informatização De Empresas: Novas Propostas De Estimação E Modelagem Usando PLS (Partial Least Squares), , In Anais do 32° Encontro da ANPAD, Rio de Janeiro. CD-RO

Lead Biosorption By Salvinia Natans Biomass: Equilibrium Study

The high amount of residual metal ions released in wastewaters from process such as mining, painting, smelting, batteries manufacture, and others, becomes a problem to the environment. In view of this, the adsorption process arises as an alternative treatment to metal ion removal. The use of some biological materials as adsorbents like aquatic plants has shown high affinity by metal ions. Therefore, the aim of this study was to evaluate the performance of aquatic macrophyte Salvinia natans in Pb2+ removal. Langmuir model best fitted to equilibrium data and the maximum uptake capacity was 0.614 mmol.g-1. In order to know the biosorption mechanism FT-IR analyses were performed for S. natans before and after uptake of metal ion. The results showed different functional groups on the biomass surface and the ability of these groups bind with Pb2+ ion in aqueous solution. © 2014, AIDIC Servizi S.r.l.3897102Argun, M.E., Dursun, S., Ozdemir, C., Karatas, M., Heavy metal adsorption by modified oak sawdust: Thermodynamics and kinetics (2007) J. Hazard. Mater., 141, pp. 77-85Baral, S.S., Das, S.N., Chaudhury, G.R., Swamy, Y.V., Rath, P., Adsorption of Cr(VI) using thermally activated weed Salvinia cucullata (2008) Chemical Engineering Journal, 139 (2), pp. 245-255. , DOI 10.1016/j.cej.2007.07.090, PII S1385894707005475Bée, A., Talbot, D., Abramson, S., Dupuis, V., Magnetic alginate beads for Pb(II) ions removal from wastewater (2011) Journal of Colloid and Interface Science, 362, pp. 486-492Božić, D., Gorgievski, M., Stanković, V., Štrbac, N., Šerbula, S., Petrović, N., Adsorption of heavy metal ions by beech sawdust - Kinetics, mechanism and equilibrium of the process (2013) Ecological Engineering, 58, pp. 202-206Das, B., Mondal, N.K., Roy, P., Chattaraj, S., Equilibrium, Kinetic and Ehermodynamic study on Chromium(VI) removal from aqueous solution using pistia stratiotes biomass (2013) Chemical Science Transactions, 2, pp. 85-104Dhir, B., Kumar, R., Adsorption of heavy metals by Salvinia biomass and agricultural residues (2010) International Journal of Environmental Research., 4, pp. 427-432Ergene, A., Ada, K., Tan, S., Katircioglu, H., Removal of Remazol Brilliant Blue R dye from aqueous solutions by adsorption onto immobilized Scenedesmus quadricauda: Equilibrium and kinetic modeling studies (2009) Desalination, 249, pp. 1308-1314Hamza, I.A.A., Martincigh, B.S., Ngila, J.C., Nyamori, V.O., Adsorption studies of aqueous Pb(II) onto a sugarcane bagasse/multi-walled carbon nanotube composite (2013) Physics and Chemistry of the Earth, 66, pp. 157-166Heidari, A., Younesi, H., Mehraban, Z., Heikkinen, H., Selective adsorption of Pb(II), Cd(II), and Ni(II) ions from aqueous solution using chitosan-MAA nanoparticles (2013) International Journal of Biological Macromolecules, 61, pp. 251-263Keskinkan, O., Goksu, M.Z.L., Yuceer, A., Basibuyuk, M., Comparison of the adsorption capabilities of Myriophylum spicatum and Ceratophyllum demersum for zinc, copper and lead (2007) Engineering in Life Sciences, 7 (2), pp. 192-196. , DOI 10.1002/elsc.200620177Lima, L.K.S., Pelosi, B.T., Silva, M.G.C., Vieira, M.G.A., Lead and Chromium Biosorption by Pistia stratiotes biomass (2013) Chemical Engineering Transactions, 32, pp. 1045-1050Lima, L.K.S., Kleinübing, S.J., Silva, E.A., Silva, M.G.C., Removal of chromium from wastewater using macrophyte Lemna as biosorbent (2011) Chemical Engineering Transactions, (25), pp. 303-308Miretzky, P., Munõz, C., Enhanced metal removal from aqueous solution by Fenton activated macrophyte biomass (2011) Desalination, 271, pp. 20-28Chandra Sekhar, K., Kamala, C.T., Chary, N.S., Sastry, A.R.K., Nageswara Rao, T., Vairamani, M., Removal of lead from aqueous solutions using an immobilized biomaterial derived from a plant biomass (2004) Journal of Hazardous Materials, pp. 111-117. , DOI 10.1016/j.jhazmat.2004.01.013, PII S0304389404000706Sharma, I., Goyal, D., Adsorption kinetics: Bioremoval of trivalent chromium from tannery effluent by Aspergillus sp. Biomass (2010) Res. J. Environ. Earth Sci., 4, pp. 1-1Wang, X.S., Zhang, B., (2010) Sorption of Al (III) from Aqueous Solution by Fresh Macrophyte Alligator Weed: Equilibrium and Kinetics, Desalination, 250, pp. 85-489Yang, L., Chen, J.P., Biosorption of hexavalent chromium onto raw and chemically modified Sargassum sp (2008) Bioresource Technology, 99 (2), pp. 297-307. , DOI 10.1016/j.biortech.2006.12.021, PII S096085240700006