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2. Proteasome lid bridges mitochondrial stress with Cdc53/Cullin1 NEDDylation status

Author

Bramasole, L, Sinha, A, Gurevich, S, Radzinski, M, Klein, Y, Panat, N, Gefen, E, Rinaldi, T, Jimenez-Morales, D, Johnson, J, Krogan, NJ, Reis, N, Reichmann, D, Glickman, MH, and Pick, E

Subjects
Biochemistry and Cell Biology, Biological Sciences, Aetiology, 2.1 Biological and endogenous factors, 1.1 Normal biological development and functioning, Underpinning research, Generic health relevance, Cell Respiration, Cullin Proteins, Mitochondria, Models, Biological, Proteasome Endopeptidase Complex, Reactive Oxygen Species, Stress, Physiological, Ubiquitin-Activating Enzymes, Ubiquitination, 26S proteasome, NEDD8/Rub1, Rpn11, Thiol switch, Ubiquitin, Medical Biochemistry and Metabolomics, Pharmacology and Pharmaceutical Sciences, Biochemistry and cell biology, Medicinal and biomolecular chemistry
Abstract

Cycles of Cdc53/Cullin1 rubylation (a.k.a NEDDylation) protect ubiquitin-E3 SCF (Skp1-Cullin1-F-box protein) complexes from self-destruction and play an important role in mediating the ubiquitination of key protein substrates involved in cell cycle progression, development, and survival. Cul1 rubylation is balanced by the COP9 signalosome (CSN), a multi-subunit derubylase that shows 1:1 paralogy to the 26S proteasome lid. The turnover of SCF substrates and their relevance to various diseases is well studied, yet, the extent by which environmental perturbations influence Cul1 rubylation/derubylation cycles per se is still unclear. In this study, we show that the level of cellular oxidation serves as a molecular switch, determining Cullin1 rubylation/derubylation ratio. We describe a mutant of the proteasome lid subunit, Rpn11 that exhibits accumulated levels of Cullin1-Rub1 conjugates, a characteristic phenotype of csn mutants. By dissecting between distinct phenotypes of rpn11 mutants, proteasome and mitochondria dysfunction, we were able to recognize the high reactive oxygen species (ROS) production during the transition of cells into mitochondrial respiration, as a checkpoint of Cullin1 rubylation in a reversible manner. Thus, the study adds the rubylation cascade to the list of cellular pathways regulated by redox homeostasis.

Published
2019

7. Will CARICOM countries be vulnerable to financial crises as a result of the Economic Partnership Agreement (EPA) : the Cotonou Agreement?

Author

Reis, N. C. M.

Subjects
330.9
Abstract

Whether the EPA contains the seeds of potential financial crises in relation to the CARICOM countries, using the concepts of globalisation, volatility risk and hubris (of leadership, economic thought and a weak regulatory environment). This study seeks to establish whether financial crises may occur when the variables of globalisation, volatility risk and hubris within a weak regulatory environment coincide within the framework of the Economic Partnership Agreement between the ACP countries, (in particular the CARICOM countries) and the EU (the Cotonou Agreement). Ultimately it is the intention to assess whether there is any association between these factors to determine if when combined we can anticipate the likely occurrence of financial crises. A number of research hypotheses were derived from the review of the literature in Documents 2 and 3. The evidence presented in Document 4 did not support the null hypotheses and allowed us to conclude that there is a statistical association among globalisation, volatility risk and hubris. In conclusion, we explore the attitudes of key sectors with respect to the EPA economic framework and proffer that a likely combination of these three variables may contribute to the occurrence of financial crises. Furthermore it is the author’s contention that the Cotonou Agreement may contain the ingredients to usher in another financial crisis.

Published
2014

10. Natural units, numbers and numerical clusters

Author

Pisano, F. and Reis, N. O.

Subjects
High Energy Physics - Phenomenology
Abstract

Defined by Lord Kelvin as the science of measurement it is described a fundamental fact of physics. The so called `natural' units represent the unique system of units conveniently used in the realm of High Energy Physics. The system of natural units is defined by the consistent providing of the adimensional unit value to the velocity c of the eletromagnetic radiation in the vacuum, related to the Maxwell classical electromagnetic theory and to the special relativity theory, to the reduced Planck constant $\hbar\equiv\frac{h}{2\pi}$ having the dimension of action, which is the fundamental constant of the quantum mechanics as well as to the Boltzmann constant $k_B$ which has the dimension of heat capacity, being the fundamental constant associated to the statistical mechanics, $c=\hbar = k_B = 1$. Such prescription is mandatory as we investigate the ultimate constituents of matter and their dynamics, since the atoms, leptons and quarks up to the grand unification, strings, superstrings, and the supergravity theories, as well as the total unification of the interactions in the M-theory. The one-dimensional character of this phenomenology is totally featured by the use of the natural units, reflecting the fact that in order to be possible the investigation of the fundamental constituents of matter it is being necessary the resolution of lengths of the order of $10^{-16} cm$ or to reach energies of the order of at least 1 TeV. The application of this system of natural units results exceptionally adequate in the description of the Universe since the Planck scale, up to the Hubble large scale expanding Universe, resulting in the curious formation of the regular numerical clusters., Comment: 7 pages, revtex, no figures

Published
2001

11. Cosmological constant and spontaneous gauge symmetry breaking: the particle physics and cosmology interface charade

Author

Pisano, F. and Reis, N. O.

Subjects
High Energy Physics - Phenomenology
Abstract

We describe one of the remarkable problems of theoretical physics persevering up to the beginning of the millennium. All gaugetheories with spontaneous gauge symmetry breaking from the standard model of particle physics with the electroweak symmetry breaking at the Fermi scale, 246 GeV, up to strings, supergravity, and the M(embrane)-theory superunification with symmetry breaking starting near the Planck scale, $10^{19}$ GeV, foresee that the spontaneous symmetry breakings induce a vacuum energy at least 50 orders of magnitude larger than the stringent experimental bound $G\Lambda\lesssim 10^{-122}$ on the value of the cosmological constant $\Lambda$. This fact seems to have a universal character since it occurs from the Fermi scale up to the Planck one. It is the vacuum catastrophe., Comment: 22 pages

Published
2001

12. Persistent effects of pre-Columbian plant domestication on Amazonian forest composition

Author

Levis, C., Costa, F. R. C., Bongers, F., Peña-Claros, M., Clement, C. R., Junqueira, A. B., Neves, E. G., Tamanaha, E. K., Figueiredo, F. O. G., Salomão, R. P., Castilho, C. V., Magnusson, W. E., Phillips, O. L., Guevara, J. E., Sabatier, D., Molino, J.-F., López, D. Cárdenas, Mendoza, A. M., Pitman, N. C. A., Duque, A., Vargas, P. Núñez, Zartman, C. E., Vasquez, R., Andrade, A., Camargo, J. L., Feldpausch, T. R., Laurance, S. G. W., Laurance, W. F., Killeen, T. J., Nascimento, H. E. Mendonça, Montero, J. C., Mostacedo, B., Amaral, I. L., Vieira, I. C. Guimarães, Brienen, R., Castellanos, H., Terborgh, J., de Jesus Veiga Carim, M., da Silva Guimarães, J. R., de Souza Coelho, L., de Almeida Matos, F. D., Wittmann, F., Mogollón, H. F., Damasco, G., Dávila, N., García-Villacorta, R., Coronado, E. N. H., Emilio, T., de Andrade Lima Filho, D., Schietti, J., Souza, P., Targhetta, N., Comiskey, J. A., Marimon, B. S., Marimon, B.-H., Neill, D., Alonso, A., Arroyo, L., Carvalho, F. A., de Souza, F. C., Dallmeier, F., Pansonato, M. P., Duivenvoorden, J. F., Fine, P. V. A., Stevenson, P. R., Araujo-Murakami, A., Aymard C., G. A., Baraloto, C., do Amaral, D. D., Engel, J., Henkel, T. W., Maas, P., Petronelli, P., Revilla, J. D. Cardenas, Stropp, J., Daly, D., Gribel, R., Paredes, M. Ríos, Silveira, M., Thomas-Caesar, R., Baker, T. R., da Silva, N. F., Ferreira, L. V., Peres, C. A., Silman, M. R., Cerón, C., Valverde, F. C., Di Fiore, A., Jimenez, E. M., Mora, M. C. Peñuela, Toledo, M., Barbosa, E. M., de Matos Bonates, L. C., Arboleda, N. C., de Sousa Farias, E., Fuentes, A., Guillaumet, J.-L., Jørgensen, P. Møller, Malhi, Y., de Andrade Miranda, I. P., Phillips, J. F., Prieto, A., Rudas, A., Ruschel, A. R., Silva, N., von Hildebrand, P., Vos, V. A., Zent, E. L., Zent, S., Cintra, B. B. L., Nascimento, M. T., Oliveira, A. A., Ramirez-Angulo, H., Ramos, J. F., Rivas, G., Schöngart, J., Sierra, R., Tirado, M., van der Heijden, G., Torre, E. V., Wang, O., Young, K. R., Baider, C., Cano, A., Farfan-Rios, W., Ferreira, C., Hoffman, B., Mendoza, C., Mesones, I., Torres-Lezama, A., Medina, M. N. U., van Andel, T. R., Villarroel, D., Zagt, R., Alexiades, M. N., Balslev, H., Garcia-Cabrera, K., Gonzales, T., Hernandez, L., Huamantupa-Chuquimaco, I., Manzatto, A. G., Milliken, W., Cuenca, W. P., Pansini, S., Pauletto, D., Arevalo, F. R., Reis, N. F. Costa, Sampaio, A. F., Giraldo, L. E. Urrego, Sandoval, E. H. Valderrama, Gamarra, L. Valenzuela, Vela, C. I. A., and ter Steege, H.

Published
2017

24. Physical-Chemical characteristics of alternative substrates and fertilization on quality of Spondias macrocarpa seedlings

Author

SMIDERLE, O. J., SOUZA, A. das G., REIS, N. D. dos, COSTA, A. S. da, PEREIRA, G. S., OSCAR JOSE SMIDERLE, CPAF-RR, ALINE DAS GRAÇAS SOUZA, UNIVERSIDADE DE INGÁ, NILMAR DIOGO DOS REIS, UNIVERSIDADE DE LAVRAS, AQUELINE SEVERINO DA COSTA, UNIVERSIDADE DE LAVRAS, and GABRIEL SOUZA PEREIRA, UNIVERSIDADE DE LAVRAS.

Subjects
Rice husk, Organic compost, Controlled-release fertilizer, Porosity, Taperebá
Abstract

The objectives were to determine the physical and chemical characteristics of different substrates, and assess the influence of different substrates, with and without the addition of controlled-release fertilizer, on the growth and morphological quality of taperebá (Spondias macrocarpa) seedlings. The experimental design adopted was a 2 x 6 factorial scheme, with the presence and absence of 8.0 g L-1 of encapsulated controlled-release fertilizer and six substrates [Sub1= soil; Sub2= soil + carbonized rice husk (2:1 v/v); Sub3= soil + organic compos (2:1 v/v); Sub4= soil + carbonized rice husk + organic compost (1:1:1); Sub5= soil + carbonized rice husk + organic compost (2:1:1); Sub 6= soil + carbonized rice husk + organic compost (2:2:1)], with five replicates, composed of 10 seedlings (one in each container). Formulations of substrates containing soil + carbonized rice husk + organic compost (1:1:1) and soil + organic compost (2:1 v/v) had total porosity ranging from 0.88 to 0.91 m3 m-3, aeration space from 0.33 to 0.35 m3 m-3 and available water from 0.27 to 0.29 m3 m-3, hence being suitable to obtain taperebá seedlings with superior quality. The substrate Cerrado soil (Sub1) is not viable for the production of taperebá seedlings, since it has acidic pH, an undesirable chemical characteristic for the cultivation of this species. Incorporation of controlled-release fertilizer into the substrates used in the present study led to better morphological characteristics, so it is indicated as an input for fertilization in the initial stage of growth of taperebá seedlings. Made available in DSpace on 2022-08-30T12:20:13Z (GMT). No. of bitstreams: 1 document.pdf: 1626784 bytes, checksum: c00702f1645d1457a83bafbc88940eee (MD5) Previous issue date: 2022

Published
2022

27. Didactic Sequence for Teaching Exponential Function

Author

OLIVEIRA, M. A. P., Marconni Augusto Pock de Oliveira, primary, CHAQUIAM, M., Miguel Chaquiam, additional, CABRAL, N. F., Natanael Freitas Cabral, additional, DIAS, G. N., Gustavo Nogueira Dias, additional, REIS, C. P., Cássio Pinho dos Reis, additional, BARBOSA, E. S., Eldilene da Silva Barbosa, additional, ARAÚJO, J. C. O., Jamile Carla Oliveira Araújo, additional, BEIRÃO, A. T. M., ANTONIO THIAGO MADEIRA BEIRÃO, additional, SILVA, K. P., Katiane Pereira da Silva, additional, ROCHA, H. O., Herson Oliveira da Rocha, additional, REIS, N. D. M., Nazaré Doriene de Melo Reis, additional, and BARRETO, W. D. L., Wagner Davy Lucas Barreto, additional

Published
2021
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28. Geographical origin authentication of southern Brazilian red wines by means of EEM-pH four-way data modelling coupled with one class classification approach

Author

VINCIGUERRA, L. L., BÖCK, F. C., SCHNEIDER, M. P., REIS, N. A. P. C., SILVA, L. F. da, SOUZA, K. C. M de, GUERRA, C. C., GOMES, A. de A., BERGOLD, A. M., FERRÂO, M. F., LAYANE LENARDON VINCIGUERRA, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, LETICIA FLORES DA SILVA, CNPUV, KELLY CHRISTINA MENDES DE SOUZA, Instituto de Ciˆencias Exatas-ICE. Universidade Federal do Sul e Sudeste do Para-Unifesspa, CELITO CRIVELLARO GUERRA, CNPUV, ADRIANO DE ARAÚJO GOMES, Instituto de Ciˆencias Exatas-ICE. Universidade Federal do Sul e Sudeste do Pará-Unifesspa, ANA MARIA BERGOLD, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, MARCO FLÔRES FERRÂO, Instituto Nacional de Ciˆencia e Tecnologia-Bioanalítca (INCT-Bioanalítica), Cidade Universit´aria, Zeferino Vaz s/n, Campinas, São Paulo, Brazil., FERNANDA CARLA BÖCK, Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, MATEUS PIRES SCHNEIDER, Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, and NATALIA ALEJANDRA PISONI CANEDO REIS, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil

Subjects
MCR-ALS, One-class classification, Red wine, Serra Gaúcha, Multiway data
Abstract

EEM data recorded at different pH values was exploited by MCR-ALS in order to determine qualitative information about Brazilian red wines. In addition, the geographical traceability of wines produced in the Serra Gaúcha (Rio Grande do Sul) was carried out by DD-SIMCA considering 53 samples from the target class and 20 from other producing regions. The fluorescence signal corresponds to 9 EEMs recorded at different pH (3?11), generating four-way data. By MCR-ALS decomposition, eight factors were retrieved and related to typical chemical compounds found in red wine. In addition, the EEM pH data was used to build a one-class classification model, considering that MCR scores and all samples of the target class were properly recognised as belonging to the target class, with maximal sensitivity equal to 1. Samples of the non-target class were also adequately rejected by the model, and the specificity was found to be 0.97. Made available in DSpace on 2021-06-21T13:06:01Z (GMT). No. of bitstreams: 1 Layane.Vinciguerra.et.al-Food.Chemistry-2021.pdf: 5735545 bytes, checksum: aab3081afaf45314b87f1cc5c53484fa (MD5) Previous issue date: 2021

Published
2021

31. Didactic Sequence for Teaching Exponential Function

Author

OLIVEIRA, M. A. P. , Marconni Augusto Pock de Oliveira, CHAQUIAM, M., Miguel Chaquiam, CABRAL, N. F., Natanael Freitas Cabral, DIAS, G. N., Gustavo Nogueira Dias, REIS, C. P. , Cássio Pinho dos Reis, BARBOSA, E. S., Eldilene da Silva Barbosa, ARAÚJO, J. C. O., Jamile Carla Oliveira Araújo, BEIRÃO, A. T. M., ANTONIO THIAGO MADEIRA BEIRÃO, SILVA, K. P., Katiane Pereira da Silva, ROCHA, H. O., Herson Oliveira da Rocha, REIS, N. D. M., Nazaré Doriene de Melo Reis, BARRETO, W. D. L., Wagner Davy Lucas Barreto, OLIVEIRA, M. A. P. , Marconni Augusto Pock de Oliveira, CHAQUIAM, M., Miguel Chaquiam, CABRAL, N. F., Natanael Freitas Cabral, DIAS, G. N., Gustavo Nogueira Dias, REIS, C. P. , Cássio Pinho dos Reis, BARBOSA, E. S., Eldilene da Silva Barbosa, ARAÚJO, J. C. O., Jamile Carla Oliveira Araújo, BEIRÃO, A. T. M., ANTONIO THIAGO MADEIRA BEIRÃO, SILVA, K. P., Katiane Pereira da Silva, ROCHA, H. O., Herson Oliveira da Rocha, REIS, N. D. M., Nazaré Doriene de Melo Reis, and BARRETO, W. D. L., Wagner Davy Lucas Barreto

Abstract

This paper presents a methodological proposal for the teaching of exponential function, resulting from the application of a didactic sequence involving exponential function, where evidence of learning and the consolidation and application of mathematical concepts in problem solving were identified and analyzed. The Didactic Engineering of Michèle Artigue (1988) was used as a research methodology. As theoretical contributions that guided and enabled the development of the research, we chose the use of Mathematical Investigation in the classroom; Didactic Sequence in the conception of Zabala (1999); the Articulated Units of Conceptual Reconstruction proposed by Cabral (2017) and assumptions of Vygotsky's theory. A didactic sequence composed of five UARC's was elaborated to work the exponential function, with a view to minimizing the difficulties naturally imposed by the content to be explained. Microgenetic analysis of verbal interactions between teacher and students was used to analyze the results of the application. The results show that the students participating in the experiment showed evidence of learning, recorded during the process, and began to have a good understanding of the concepts and properties related to the topic, in addition to a good performance in carrying out the activities, facts that corroborate the potential of the didactic sequence proposed herein.

Published
2021

32. Strategies to manage hepatitis C virus (HCV) disease burden

Author

Wedemeyer, H., Duberg, A. S., Buti, M., Rosenberg, W. M., Frankova, S., Esmat, G., Örmeci, N., Van Vlierberghe, H., Gschwantler, M., Akarca, U., Aleman, S., Balk, İ., Berg, T., Bihl, F., Bilodeau, M., Blasco, A. J., Brandão Mello, C. E., Bruggmann, P., Calinas, F., Calleja, J. L., Cheinquer, H., Christensen, P. B., Clausen, M., Coelho, H. S. M., Cornberg, M., Cramp, M. E., Dore, G. J., Doss, W., El-Sayed, M. H., Ergör, G., Estes, C., Falconer, K., Félix, J., Ferraz, M. L. G., Ferreira, P. R., García-Samaniego, J., Gerstoft, J., Giria, J. A., Gonçales, F. L., Jr, Guimarães Pessôa, M., Hézode, C., Hindman, S. J., Hofer, H., Husa, P., Idilman, R., Kåberg, M., Kaita, K. D. E., Kautz, A., Kaymakoglu, S., Krajden, M., Krarup, H., Laleman, W., Lavanchy, D., Lázaro, P., Marinho, R. T., Marotta, P., Mauss, S., Mendes Correa, M. C., Moreno, C., Müllhaupt, B., Myers, R. P., Nemecek, V., vrehus, A. L. H., Parkes, J., Peltekian, K. M., Ramji, A., Razavi, H., Reis, N., Roberts, S. K., Roudot-Thoraval, F., Ryder, S. D., Sarmento-Castro, R., Sarrazin, C., Semela, D., Sherman, M., Shiha, G. E., Sperl, J., Stärkel, P., Stauber, R. E., Thompson, A. J., Urbanek, P., Van Damme, P., van Thiel, I., Vandijck, D., Vogel, W., Waked, I., Weis, N., Wiegand, J., Yosry, A., Zekry, A., Negro, F., Sievert, W., and Gower, E.

Published
2014
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33. The present and future disease burden of hepatitis C virus (HCV) infection with todayʼs treatment paradigm

Author

Razavi, H., Waked, I., Sarrazin, C., Myers, R. P., Idilman, R., Calinas, F., Vogel, W., Mendes Correa, M. C., Hézode, C., Lázaro, P., Akarca, U., Aleman, S., Balk, İ., Berg, T., Bihl, F., Bilodeau, M., Blasco, A. J., Brandão Mello, C. E., Bruggmann, P., Buti, M., Calleja, J. L., Cheinquer, H., Christensen, P. B., Clausen, M., Coelho, H. S. M., Cramp, M. E., Dore, G. J., Doss, W., Duberg, A. S., El-Sayed, M. H., Ergör, G., Esmat, G., Falconer, K., Félix, J., Ferraz, M. L. G., Ferreira, P. R., Frankova, S., García-Samaniego, J., Gerstoft, J., Giria, J. A., Gonçales, F. L., Jr, Gower, E., Gschwantler, M., Guimarães Pessôa, M., Hindman, S. J., Hofer, H., Husa, P., Kåberg, M., Kaita, K. D. E., Kautz, A., Kaymakoglu, S., Krajden, M., Krarup, H., Laleman, W., Lavanchy, D., Marinho, R. T., Marotta, P., Mauss, S., Moreno, C., Murphy, K., Negro, F., Nemecek, V., Örmeci, N., vrehus, A. L. H., Parkes, J., Pasini, K., Peltekian, K. M., Ramji, A., Reis, N., Roberts, S. K., Rosenberg, W. M., Roudot-Thoraval, F., Ryder, S. D., Sarmento-Castro, R., Semela, D., Sherman, M., Shiha, G. E., Sievert, W., Sperl, J., Stärkel, P., Stauber, R. E., Thompson, A. J., Urbanek, P., Van Damme, P., van Thiel, I., Van Vlierberghe, H., Vandijck, D., Wedemeyer, H., Weis, N., Wiegand, J., Yosry, A., Zekry, A., Cornberg, M., Müllhaupt, B., and Estes, C.

Published
2014
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34. Historical epidemiology of hepatitis C virus (HCV) in selected countries

Author

Bruggmann, P., Berg, T., vrehus, A. L. H., Moreno, C., Brandão Mello, C. E., Roudot-Thoraval, F., Marinho, R. T., Sherman, M., Ryder, S. D., Sperl, J., Akarca, U., Balk, İ., Bihl, F., Bilodeau, M., Blasco, A. J., Buti, M., Calinas, F., Calleja, J. L., Cheinquer, H., Christensen, P. B., Clausen, M., Coelho, H. S. M., Cornberg, M., Cramp, M. E., Dore, G. J., Doss, W., Duberg, A. S., El-Sayed, M. H., Ergör, G., Esmat, G., Estes, C., Falconer, K., Félix, J., Ferraz, M. L. G., Ferreira, P. R., Frankova, S., García-Samaniego, J., Gerstoft, J., Giria, J. A., Gonçales, F. L., Jr, Gower, E., Gschwantler, M., Guimarães Pessôa, M., Hézode, C., Hofer, H., Husa, P., Idilman, R., Kåberg, M., Kaita, K. D. E., Kautz, A., Kaymakoglu, S., Krajden, M., Krarup, H., Laleman, W., Lavanchy, D., Lázaro, P., Marotta, P., Mauss, S., Mendes Correa, M. C., Müllhaupt, B., Myers, R. P., Negro, F., Nemecek, V., Örmeci, N., Parkes, J., Peltekian, K. M., Ramji, A., Razavi, H., Reis, N., Roberts, S. K., Rosenberg, W. M., Sarmento-Castro, R., Sarrazin, C., Semela, D., Shiha, G. E., Sievert, W., Stärkel, P., Stauber, R. E., Thompson, A. J., Urbanek, P., van Thiel, I., Van Vlierberghe, H., Vandijck, D., Vogel, W., Waked, I., Wedemeyer, H., Weis, N., Wiegand, J., Yosry, A., Zekry, A., Van Damme, P., Aleman, S., and Hindman, S. J.

Published
2014
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35. The effect of feed supplementation with inulin on boar taint levels and meat quality of entire male pigs.

Author

Pinto, R. Pereira, Velho, M. Vaz, Barros, M., Reis, N., and Pires, P.

Subjects
MEAT quality, INULIN, SWINE, SWINE farms, BOARS, DIETARY supplements, ANIMAL feeds, ADIPOSE tissues
Abstract

Skatole and androstenone are the two main compounds responsible for the foul odour in entire male pigs' meat, known as boar taint. This study evaluated the effect of feed supplementation with inulin on the boar taint levels of 30 entire male pigs. Two months before slaughter, the animals were allocated into three groups (n = 10). The control group received a standard commercial diet. The other groups were fed the same commercial diet with 3% and 6% added inulin, respectively. Results showed that inulin addition to the feed significantly reduced skatole levels in the pigs' adipose tissue compared with the control group. The levels of androstenone were not affected by the dietary approach. Although there were differences in some parameters, the supplementation with inulin did not promote extensive changes in the meat quality parameters between the tested groups. When raising entire males, supplementation with inulin in finishing diets could be considered to reduce the boar taint perception by the consumer. [ABSTRACT FROM AUTHOR]

Published
2022
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36. Student assessment:Thematic peer group report. Learning and teaching paper 10

Author

Evans, C. (Carol), Bunescu, L. (Luisa), Žuvić, M. (Marta), Švaljek, T. (Tihana), Berisa, M. (Matej), Dimnjasevic, T. (Tea), Harmoinen, S. (Sari), Määttä, H. (Henna), Javakhishvili, I. (Ivane), Sharvashide, G. (George), Gabrichidze, T. (Tinatin), Rusakova, A. (Agnese), Celuiko, D. (Deniss), Ziverte, A. (Alise), Eggen, A. B. (Astrid Birgitte), Costa, M. J. (Manuel João), Reis, N. (Nuno), Jaurena, I. G. (Inés Gil), Khalil, O. (Omar), Sylvestre, E. (Emmanuel), Pillard, L. (Loïc), and Roberts, R. (Roni)

Published
2020

47. Poor clinical outcome for meningitis caused by haemophilus influenzae serotype A strains containing the IS1016-bexA deletion

Author

Lima, Josilene B.T., Ribeiro, Guilherme S., Cordeiro, Soraia M., Gouveia, Edilane L., Salgado, Katia, Spratt, Brian G., Godoy, Daniel, Reis, Mitermayer G., Ko, Albert I., and Reis, N.

Subjects
Meningitis -- Risk factors, Meningitis -- Diagnosis, Meningitis -- Patient outcomes, Meningitis -- Prevention, Hemophilus influenzae -- Prevention, Hemophilus influenzae -- Genetic aspects, Hib vaccines -- Usage, Hib vaccines -- Patient outcomes, Disease transmission -- Prevention, Health
Published
2010

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