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1,279 results on '"Van Wyk J"'

54. Fungal Planet description sheets: 1284–1382

Author

Crous, P.W., Osieck, E.R., Jurjević, Ž., Boers, J., Van Iperen, A.L., Starink-Willemse, M., Dima, B., Balashov, S., Bulgakov, T.S., Johnston, P.R., Morozova, O.V., Pinruan, U., Sommai, S., Alvarado, P., Decock, C.A., Lebel, T., McMullan-Fisher, S., Moreno, G., Shivas, R.G., Zhao, L., Abdollahzadeh, J., Abrinbana, M., Ageev, D.V., Akhmetova, G., Alexandrova, A.V., Altés, A., Amaral, A.G.G., Angelini, C., Antonín, V., Arenas, F., Asselman, P., Badali, F., Baghela, A., Bañares, Á., Barreto, R.W., Baseia, I.G., Bellanger, J-M, Berraf-Tebbal, A., Biketova, A.Y., Bukharova, N.V., Burgess, T.I., Cabero, J., Câmara, M.P.S., Cano-Lira, J.F., Ceryngier, P., Chávez, R., Cowan, D.A., de Lima, A.F., Oliveira, R.L., Denman, S., Dang, Q.N., Dovana, F., Duarte, I.G., Eichmeier, A., Erhard, A., Esteve-Raventós, F., Fellin, A., Ferisin, G., Ferreira, R.J., Ferrer, A., Finy, P., Gaya, E., Geering, A.D.W., Gil-Durán, C., Glässnerová, K., Glushakova, A.M., Gramaje, D., Guard, F.E., Guarnizo, A.L., Haelewaters, D., Halling, R.E., Hill, R., Hirooka, Y., Hubka, V., Iliushin, V.A., Ivanova, D.D., Ivanushkina, N.E., Jangsantear, P., Justo, A., Kachalkin, A.V., Kato, S., Khamsuntorn, P., Kirtsideli, I.Y., Knapp, D.G., Kochkina, G.A., Koukol, O., Kovács, G.M., Kruse, J., Kumar, T.K.A., Kušan, I., Læssøe, T., Larsson, E., Lebeuf, R., Levicán, G., Loizides, M., Marinho, P., Luangsa-ard, J.J., Lukina, E.G., Magaña-Dueñas, V., Maggs-Kölling, G., Malysheva, E.F., Malysheva, V.F., Martín, B., Martín, M.P., Matočec, N., McTaggart, A.R., Mehrabi-Koushki, M., Mešić, A., Miller, A.N., Mironova, P., Moreau, P-A, Morte, A., Müller, K., Nagy, L.G., Nanu, S., Navarro-Ródenas, A., Nel, W.J., Nguyen, T.H., Nóbrega, T.F., Noordeloos, M.E., Olariaga, I., Overton, B.E., Ozerskaya, S.M., Palani, P., Pancorbo, F., Papp, V., Pawłowska, J., Pham, T.Q., Phosri, C., Popov, E.S., Portugal, A., Pošta, A., Reschke, K., Reul, M., Ricci, G.M., Rodríguez, A., Romanowski, J., Ruchikachorn, N., Saar, I., Safi, A., Sakolrak, B., Salzmann, F., Sandoval-Denis, M., Sangwichein, E., Sanhueza, L., Sato, T., Sastoque, A., Senn-Irlet, B., Shibata, A., Siepe, K., Somrithipol, S., Spetik, M., Sridhar, P., Stchigel, A.M., Stuskova, K., Suwannasai, N., Tan, Y.P., Thangavel, R., Tiago, I., Tiwari, S., Tkalčec, Z., Tomashevskaya, M.A., Tonegawa, C., Tran, H.X., Tran, N.T., Trovão, J., Trubitsyn, V.E., Van Wyk, J., Vieira, W.A.S., Vila, J., Visagie, C.M., Vizzini, A., Volobuev, S.V., Vu, D.T., Wangsawat, N., Yaguchi, T., Ercole, E., Ferreira, B.W., de Souza, A.P., Vieira, B.S., Groenewald, J.Z., Crous, P.W., Osieck, E.R., Jurjević, Ž., Boers, J., Van Iperen, A.L., Starink-Willemse, M., Dima, B., Balashov, S., Bulgakov, T.S., Johnston, P.R., Morozova, O.V., Pinruan, U., Sommai, S., Alvarado, P., Decock, C.A., Lebel, T., McMullan-Fisher, S., Moreno, G., Shivas, R.G., Zhao, L., Abdollahzadeh, J., Abrinbana, M., Ageev, D.V., Akhmetova, G., Alexandrova, A.V., Altés, A., Amaral, A.G.G., Angelini, C., Antonín, V., Arenas, F., Asselman, P., Badali, F., Baghela, A., Bañares, Á., Barreto, R.W., Baseia, I.G., Bellanger, J-M, Berraf-Tebbal, A., Biketova, A.Y., Bukharova, N.V., Burgess, T.I., Cabero, J., Câmara, M.P.S., Cano-Lira, J.F., Ceryngier, P., Chávez, R., Cowan, D.A., de Lima, A.F., Oliveira, R.L., Denman, S., Dang, Q.N., Dovana, F., Duarte, I.G., Eichmeier, A., Erhard, A., Esteve-Raventós, F., Fellin, A., Ferisin, G., Ferreira, R.J., Ferrer, A., Finy, P., Gaya, E., Geering, A.D.W., Gil-Durán, C., Glässnerová, K., Glushakova, A.M., Gramaje, D., Guard, F.E., Guarnizo, A.L., Haelewaters, D., Halling, R.E., Hill, R., Hirooka, Y., Hubka, V., Iliushin, V.A., Ivanova, D.D., Ivanushkina, N.E., Jangsantear, P., Justo, A., Kachalkin, A.V., Kato, S., Khamsuntorn, P., Kirtsideli, I.Y., Knapp, D.G., Kochkina, G.A., Koukol, O., Kovács, G.M., Kruse, J., Kumar, T.K.A., Kušan, I., Læssøe, T., Larsson, E., Lebeuf, R., Levicán, G., Loizides, M., Marinho, P., Luangsa-ard, J.J., Lukina, E.G., Magaña-Dueñas, V., Maggs-Kölling, G., Malysheva, E.F., Malysheva, V.F., Martín, B., Martín, M.P., Matočec, N., McTaggart, A.R., Mehrabi-Koushki, M., Mešić, A., Miller, A.N., Mironova, P., Moreau, P-A, Morte, A., Müller, K., Nagy, L.G., Nanu, S., Navarro-Ródenas, A., Nel, W.J., Nguyen, T.H., Nóbrega, T.F., Noordeloos, M.E., Olariaga, I., Overton, B.E., Ozerskaya, S.M., Palani, P., Pancorbo, F., Papp, V., Pawłowska, J., Pham, T.Q., Phosri, C., Popov, E.S., Portugal, A., Pošta, A., Reschke, K., Reul, M., Ricci, G.M., Rodríguez, A., Romanowski, J., Ruchikachorn, N., Saar, I., Safi, A., Sakolrak, B., Salzmann, F., Sandoval-Denis, M., Sangwichein, E., Sanhueza, L., Sato, T., Sastoque, A., Senn-Irlet, B., Shibata, A., Siepe, K., Somrithipol, S., Spetik, M., Sridhar, P., Stchigel, A.M., Stuskova, K., Suwannasai, N., Tan, Y.P., Thangavel, R., Tiago, I., Tiwari, S., Tkalčec, Z., Tomashevskaya, M.A., Tonegawa, C., Tran, H.X., Tran, N.T., Trovão, J., Trubitsyn, V.E., Van Wyk, J., Vieira, W.A.S., Vila, J., Visagie, C.M., Vizzini, A., Volobuev, S.V., Vu, D.T., Wangsawat, N., Yaguchi, T., Ercole, E., Ferreira, B.W., de Souza, A.P., Vieira, B.S., and Groenewald, J.Z.

Abstract

Novel species of fungi described in this study include those from various countries as follows: Antartica, Cladosporium austrolitorale from coastal sea sand. Australia, Austroboletus yourkae on soil, Crepidotus innuopurpureus on dead wood, Curvularia stenotaphri from roots and leaves of Stenotaphrum secundatum and Thecaphora stajsicii from capsules of Oxalis radicosa. Belgium, Paraxerochrysium coryli (incl. Paraxerochrysium gen. nov.) from Corylus avellana. Brazil, Calvatia nordestina on soil, Didymella tabebuiicola from leaf spots on Tabebuia aurea, Fusarium subflagellisporum from hypertrophied floral and vegetative branches of Mangifera indica and Microdochium maculosum from living leaves of Digitaria insularis. Canada, Cuphophyllus bondii fromagrassland. Croatia, Mollisia inferiseptata from a rotten Laurus nobilis trunk. Cyprus, Amanita exilis oncalcareoussoil. Czech Republic, Cytospora hippophaicola from wood of symptomatic Vaccinium corymbosum. Denmark, Lasiosphaeria deviata on pieces of wood and herbaceousdebris. Dominican Republic, Calocybella goethei among grass on a lawn. France (Corsica) , Inocybe corsica onwetground. France (French Guiana) , Trechispora patawaensis on decayed branch of unknown angiosperm tree and Trechispora subregularis on decayed log of unknown angiosperm tree. Germany, Paramicrothecium sambuci (incl. Paramicrothecium gen. nov.)ondeadstemsof Sambucus nigra. India, Aureobasidium microtermitis from the gut of a Microtermes sp. termite, Laccaria diospyricola on soil and Phylloporia tamilnadensis on branches of Catunaregam spinosa. Iran, Pythium serotinoosporum from soil under Prunus dulcis. Italy, Pluteus brunneovenosus on twigs of broad leaved trees on the ground. Japan, Heterophoma rehmanniae on leaves of Rehmannia glutinosa f. hueichingensis. Kazakhstan, Murispora kazachstanica from healthy roots of Triticum aestivum. Namibia, Caespitomonium euphorbiae (incl. Caespitomonium gen. nov.)from stems of an Euphorbia sp. Netherlands, Alfaria j

Published
2021

55. Fungal Planet description sheets: 1284–1382

Author

Crous, P.W. (Pedro Willem), Osieck, (Eduard R.), Jurjevi, Ž, Boers, J., Iperen, A.L. van, Starink-Willemse, M., Dima, B., Balashov, S., Bulgakov, T.S., Johnston, P.R., Morozova, O.V., Pinruan, U., Sommai, S., Alvarado, P., Decock, C.A., Lebel, T., McMullan-Fisher, S., Moreno, G., Shivas, R.G., Zhao, L., Abdollahzadeh, J., Abrinbana, M., Ageev, D.V., Akhmetova, G., Alexandrova, A.V., Altés, A., Amaral, A.G.G., Angelini, C., Antonín, V. (Vladimír), Arenas, F., Asselman, P., Badali, F., Baghela, A., Banares, Á., Barreto, R.W., Baseia, I.G., Bellanger, J.-M., Berraf-Tebbal, A., Biketova, A. Yu., Bukharova, N.V., Burgess, T.I., Cabero, J., Câmara, M.P.S., Cano-Lira, J.F., Ceryngier, P., Chávez, R., Cowan, D.A., de Lima, A.F., Oliveira, R.L., Denman, S., Dang, Q.N., Dovana, F., Duarte, I.G., Eichmeier, A., Erhard, A., Esteve-Raventós, F., Fellin, A., Ferisin, G., Ferreira, R.J., Ferrer, A., Finy, P., Gaya, E., Geering, A.D.W., Gil-Durán, C., Glässnerová, K., Glushakova, A.M., Gramaje, D., Guard, F.E., Guarnizo, A.L., Haelewaters, D., Halling, R.E., Hill, R., Hirooka, Y., Hubka, V., Iliushin, V.A., Ivanova, D.D., Ivanushkina, N.E., Jangsantear, P., Justo, A., Kachalkin, A.V., Kato, S., Khamsuntorn, P., Kirtsideli, I.Y., Knapp, D.G., Kochkina, G.A., Koukol, O., Kovács, G.M., Kruse, J., Kumar, T.K.A., Kušan, I., Læssøe, T., Larsson, E., Lebeuf, R., Levicán, G., Loizides, M., Marinho, P., Luangsa-ard, J.J., Lukina, E.G., Magaña-Dueñas, V., Maggs-Kölling, G., Malysheva, E.F., Malysheva, V.F., Martín, B., Martín, M.P., Matočec, N., McTaggart, A.R., Mehrabi-Koushki, M., Mešić, A., Miller, A.N., Mironova, P., Moreau, P.-A. (Pierre-Arthur), Morte, A., Müller, K., Nagy, L.G., Nanu, S., Navarro-Ródenas, A., Nel, W.J., Nguyen, T.H., Nóbrega, T.F., Noordeloos, (Machiel E.), Olariaga, I., Overton, B.E., Ozerskaya, S.M., Palani, P., Pancorbo, F., Papp, V., Pawłowska, J., Pham, T.Q., Phosri, C., Popov, E.S., Portugal, A., Pošta, A., Reschke, K., Reul, M., Ricci, G.M., Rodríguez, A., Romanowski, J., Ruchikachorn, N., Saar, I., Safi, A., Sakolrak, B., Salzmann, F., Sandoval-Denis, M., Sangwichein, E., Sanhueza, L., Sato, T., Sastoque, A., Senn-Irlet, Beatrice, Shibata, A., Siepe, K., Somrithipol, S., Spetik, M., Sridhar, P., Stchigel, A.M., Stuskova, K., Suwannasai, N., Tan, Y.P., Thangavel, R., Tiago, I., Tiwari, S., Tkalčec, Z., Tomashevskaya, M.A., Tonegawa, C., Tran, H.X., Tran, N.T., Trovão, J., Trubitsyn, V.E., Van Wyk, J., Vieira, W.A.S., Vila, J., Visagie, C.M., Vizzini, A., Volobuev, S.V., Vu, D., Wangsawat, N., Yaguchi, T., Ercole, E., Ferreira, B.W., de Souza, A.P., Vieira, B.S., Groenewald, (J.Z. ), Crous, P.W. (Pedro Willem), Osieck, (Eduard R.), Jurjevi, Ž, Boers, J., Iperen, A.L. van, Starink-Willemse, M., Dima, B., Balashov, S., Bulgakov, T.S., Johnston, P.R., Morozova, O.V., Pinruan, U., Sommai, S., Alvarado, P., Decock, C.A., Lebel, T., McMullan-Fisher, S., Moreno, G., Shivas, R.G., Zhao, L., Abdollahzadeh, J., Abrinbana, M., Ageev, D.V., Akhmetova, G., Alexandrova, A.V., Altés, A., Amaral, A.G.G., Angelini, C., Antonín, V. (Vladimír), Arenas, F., Asselman, P., Badali, F., Baghela, A., Banares, Á., Barreto, R.W., Baseia, I.G., Bellanger, J.-M., Berraf-Tebbal, A., Biketova, A. Yu., Bukharova, N.V., Burgess, T.I., Cabero, J., Câmara, M.P.S., Cano-Lira, J.F., Ceryngier, P., Chávez, R., Cowan, D.A., de Lima, A.F., Oliveira, R.L., Denman, S., Dang, Q.N., Dovana, F., Duarte, I.G., Eichmeier, A., Erhard, A., Esteve-Raventós, F., Fellin, A., Ferisin, G., Ferreira, R.J., Ferrer, A., Finy, P., Gaya, E., Geering, A.D.W., Gil-Durán, C., Glässnerová, K., Glushakova, A.M., Gramaje, D., Guard, F.E., Guarnizo, A.L., Haelewaters, D., Halling, R.E., Hill, R., Hirooka, Y., Hubka, V., Iliushin, V.A., Ivanova, D.D., Ivanushkina, N.E., Jangsantear, P., Justo, A., Kachalkin, A.V., Kato, S., Khamsuntorn, P., Kirtsideli, I.Y., Knapp, D.G., Kochkina, G.A., Koukol, O., Kovács, G.M., Kruse, J., Kumar, T.K.A., Kušan, I., Læssøe, T., Larsson, E., Lebeuf, R., Levicán, G., Loizides, M., Marinho, P., Luangsa-ard, J.J., Lukina, E.G., Magaña-Dueñas, V., Maggs-Kölling, G., Malysheva, E.F., Malysheva, V.F., Martín, B., Martín, M.P., Matočec, N., McTaggart, A.R., Mehrabi-Koushki, M., Mešić, A., Miller, A.N., Mironova, P., Moreau, P.-A. (Pierre-Arthur), Morte, A., Müller, K., Nagy, L.G., Nanu, S., Navarro-Ródenas, A., Nel, W.J., Nguyen, T.H., Nóbrega, T.F., Noordeloos, (Machiel E.), Olariaga, I., Overton, B.E., Ozerskaya, S.M., Palani, P., Pancorbo, F., Papp, V., Pawłowska, J., Pham, T.Q., Phosri, C., Popov, E.S., Portugal, A., Pošta, A., Reschke, K., Reul, M., Ricci, G.M., Rodríguez, A., Romanowski, J., Ruchikachorn, N., Saar, I., Safi, A., Sakolrak, B., Salzmann, F., Sandoval-Denis, M., Sangwichein, E., Sanhueza, L., Sato, T., Sastoque, A., Senn-Irlet, Beatrice, Shibata, A., Siepe, K., Somrithipol, S., Spetik, M., Sridhar, P., Stchigel, A.M., Stuskova, K., Suwannasai, N., Tan, Y.P., Thangavel, R., Tiago, I., Tiwari, S., Tkalčec, Z., Tomashevskaya, M.A., Tonegawa, C., Tran, H.X., Tran, N.T., Trovão, J., Trubitsyn, V.E., Van Wyk, J., Vieira, W.A.S., Vila, J., Visagie, C.M., Vizzini, A., Volobuev, S.V., Vu, D., Wangsawat, N., Yaguchi, T., Ercole, E., Ferreira, B.W., de Souza, A.P., Vieira, B.S., and Groenewald, (J.Z. )

Abstract

Novel species of fungi described in this study include those from various countries as follows: Antartica, Cladosporium austrolitorale from coastal sea sand. Australia, Austroboletus yourkae on soil, Crepidotus innuopurpureus on dead wood, Curvularia stenotaphri from roots and leaves of Stenotaphrum secundatum and Thecaphora stajsicii from capsules of Oxalis radicosa. Belgium, Paraxerochrysium coryli (incl. Paraxerochrysium gen. nov.) from Corylus avellana. Brazil, Calvatia nordestina on soil, Didymella tabebuiicola from leaf spots on Tabebuia aurea, Fusarium subflagellisporum from hypertrophied floral and vegetative branches of Mangifera indica and Microdochium maculosum from living leaves of Digitaria insularis. Canada, Cuphophyllus bondii from a grassland. Croatia, Mollisia inferiseptata from a rotten Laurus nobilis trunk. Cyprus, Amanita exilis on calcareous soil. Czech Republic, Cytospora hippophaicola from wood of symptomatic Vaccinium corymbosum. Denmark, Lasiosphaeria deviata on pieces of wood and herbaceous debris. Dominican Republic, Calocybella goethei among grass on a lawn. France (Corsica), Inocybe corsica on wet ground. France (French Guiana), Trechispora patawaensis on decayed branch of unknown angiosperm tree and Trechispora subregularis on decayed log of unknown angiosperm tree. Germany, Paramicrothecium sambuci (incl. Paramicrothecium gen. nov.) on dead stems of Sambucus nigra. India, Aureobasidium microtermitis from the gut of a Microtermes sp. termite, Laccaria diospyricola on soil and Phylloporia tamilnadensis on branches of Catunaregam spinosa. Iran, Pythium serotinoosporum from soil under Prunus dulcis. Italy, Pluteus brunneovenosus on twigs of broadleaved trees on the ground. Japan, Heterophoma rehmanniae on leaves of Rehmannia glutinosa f. hueichingensis. Kazakhstan, Murispora kazachstanica from healthy roots of Triticum aestivum. Namibia, Caespitomonium euphorbiae (incl. Caespitomonium gen. nov.) from stems of an Euphorbia sp. Netherlands

Published
2021
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56. Fungal Planet description sheets:1284-1382

Author

Crous, P. W., Osieck, E. R., Jurjevi, Z., Boers, J., Van Iperen, A. L., Starink-Willemse, M., Dima, B., Balashov, S., Bulgakov, T. S., Johnston, P. R., Morozova, O. V., Pinruan, U., Sommai, S., Alvarado, P., Decock, C. A., Lebel, T., McMullan-Fisher, S., Moreno, G., Shivas, R. G., Zhao, L., Abdollahzadeh, J., Abrinbana, M., Ageev, D., Akhmetova, G., Alexandrova, A. V., Altes, A., Amaral, A. G. G., Angelini, C., Antonin, V., Arenas, F., Asselman, P., Badali, F., Baghela, A., Bañares, Á., Barreto, R. W., Baseia, I. G., Bellanger, J.-M., Berraf-Tebbal, A., Biketova, A. Yu., Bukharova, N. V., Burgess, T. I., Cabero, J., Camara, M. P. S., Cano-Lira, J. F., Ceryngier, P., Chávez, R., Cowan, D. A., de Lima, A. F., Oliveira, R. L., Denman, S., Dang, Q. N., Dovana, F., Duarte, I. G., Eichmeier, A., Erhard, A., Esteve-Raventos, F., Fellin, A., Ferisin, G., Ferreira, R. J., Ferrer, A., Finy, P., Gaya, E., Geering, A. D. W., Gil-Duran, C., Glässnerová, K., Glushakova, A. M., Gramaje, D., Guard, F. E., Guarnizo, A. L., Haelewaters, D., Halling, R. E., Hill, R., Hirooka, Y., Hubka, V., Iliushin, V. A., Ivanova, D. D., Ivanushkina, N. E., Jangsantear, P., Justo, A., Kachalkin, A. V., Kato, S., Khamsuntorn, P., Kirtsideli, I. Y., Knapp, D. G., Kochkina, G. A., Koukol, O., Kovacs, G. M., Kruse, J., Kumar, T. K. A., Kusan, I., Læssøe, T., Larsson, E., Lebeuf, R., Levican, G., Loizides, M., Marinho, P., Luangsa-ard, J. J., Lukina, E. G., Magana-Duenas, V., Maggs-Kölling, G., Malysheva, E. F., Malysheva, V. F., Martin, B., Martin, M. P., Matocec, N., McTaggart, A. R., Mehrabi-Koushki, M., Mesic, A., Miller, A. N., Mironova, P., Moreau, P.-A., Morte, A., Müller, K., Nagy, L. G., Nanu, S., Navarro-Rodenas, A., Nel, W. J., Nguyen, T. H., Nobrega, T. F., Noordeloos, M. E., Olariaga, I., Overton, B. E., Ozerskaya, S. M., Palani, P., Pancorbo, F., Papp, V., Pawlowska, J., Pham, T. Q., Phosri, C., Popov, E. S., Portugal, A., Posta, A., Reschke, K., Reul, M., Ricci, G. M., Rodriguez, A., Romanowski, J., Ruchikachorn, N., Saar, I., Safi, A., Sakolrak, B., Salzmann, F., Sandoval-Denis, M., Sangwichein, E., Sanhueza, L., Sato, T., Sastoque, A., Senn-Irlet, B., Shibata, A., Siepe, K., Somrithipol, S., Spetik, M., Sridhar, P., Stchigel, A. M., Stuskova, K., Suwannasai, N., Tan, Y. P., Thangavel, R., Tiago, I., Tiwari, S., Tkalcec, Z., Tomashevskaya, M. A., Tonegawa, C., Tran, H. X., Tran, N. T., Trovao, J., Trubitsyn, V. E., Van Wyk, J., Vieira, W. A. S., Vila, J., Visagie, C. M., Vizzini, A., Volobuev, S. V., Vu, D. T., Wangsawat, N., Yaguchi, T., Ercole, E., Ferreira, B. W., de Souza, A. P., Vieira, B. S., Groenewald, J. Z., Crous, P. W., Osieck, E. R., Jurjevi, Z., Boers, J., Van Iperen, A. L., Starink-Willemse, M., Dima, B., Balashov, S., Bulgakov, T. S., Johnston, P. R., Morozova, O. V., Pinruan, U., Sommai, S., Alvarado, P., Decock, C. A., Lebel, T., McMullan-Fisher, S., Moreno, G., Shivas, R. G., Zhao, L., Abdollahzadeh, J., Abrinbana, M., Ageev, D., Akhmetova, G., Alexandrova, A. V., Altes, A., Amaral, A. G. G., Angelini, C., Antonin, V., Arenas, F., Asselman, P., Badali, F., Baghela, A., Bañares, Á., Barreto, R. W., Baseia, I. G., Bellanger, J.-M., Berraf-Tebbal, A., Biketova, A. Yu., Bukharova, N. V., Burgess, T. I., Cabero, J., Camara, M. P. S., Cano-Lira, J. F., Ceryngier, P., Chávez, R., Cowan, D. A., de Lima, A. F., Oliveira, R. L., Denman, S., Dang, Q. N., Dovana, F., Duarte, I. G., Eichmeier, A., Erhard, A., Esteve-Raventos, F., Fellin, A., Ferisin, G., Ferreira, R. J., Ferrer, A., Finy, P., Gaya, E., Geering, A. D. W., Gil-Duran, C., Glässnerová, K., Glushakova, A. M., Gramaje, D., Guard, F. E., Guarnizo, A. L., Haelewaters, D., Halling, R. E., Hill, R., Hirooka, Y., Hubka, V., Iliushin, V. A., Ivanova, D. D., Ivanushkina, N. E., Jangsantear, P., Justo, A., Kachalkin, A. V., Kato, S., Khamsuntorn, P., Kirtsideli, I. Y., Knapp, D. G., Kochkina, G. A., Koukol, O., Kovacs, G. M., Kruse, J., Kumar, T. K. A., Kusan, I., Læssøe, T., Larsson, E., Lebeuf, R., Levican, G., Loizides, M., Marinho, P., Luangsa-ard, J. J., Lukina, E. G., Magana-Duenas, V., Maggs-Kölling, G., Malysheva, E. F., Malysheva, V. F., Martin, B., Martin, M. P., Matocec, N., McTaggart, A. R., Mehrabi-Koushki, M., Mesic, A., Miller, A. N., Mironova, P., Moreau, P.-A., Morte, A., Müller, K., Nagy, L. G., Nanu, S., Navarro-Rodenas, A., Nel, W. J., Nguyen, T. H., Nobrega, T. F., Noordeloos, M. E., Olariaga, I., Overton, B. E., Ozerskaya, S. M., Palani, P., Pancorbo, F., Papp, V., Pawlowska, J., Pham, T. Q., Phosri, C., Popov, E. S., Portugal, A., Posta, A., Reschke, K., Reul, M., Ricci, G. M., Rodriguez, A., Romanowski, J., Ruchikachorn, N., Saar, I., Safi, A., Sakolrak, B., Salzmann, F., Sandoval-Denis, M., Sangwichein, E., Sanhueza, L., Sato, T., Sastoque, A., Senn-Irlet, B., Shibata, A., Siepe, K., Somrithipol, S., Spetik, M., Sridhar, P., Stchigel, A. M., Stuskova, K., Suwannasai, N., Tan, Y. P., Thangavel, R., Tiago, I., Tiwari, S., Tkalcec, Z., Tomashevskaya, M. A., Tonegawa, C., Tran, H. X., Tran, N. T., Trovao, J., Trubitsyn, V. E., Van Wyk, J., Vieira, W. A. S., Vila, J., Visagie, C. M., Vizzini, A., Volobuev, S. V., Vu, D. T., Wangsawat, N., Yaguchi, T., Ercole, E., Ferreira, B. W., de Souza, A. P., Vieira, B. S., and Groenewald, J. Z.

Abstract

Novel species of fungi described in this study include those from various countries as follows: Antartica , Cladosporium austrolitorale from coastal sea sand. Australia , Austroboletus yourkae on soil, Crepidotus innuopur- pureus on dead wood, Curvularia stenotaphri from roots and leaves of Stenotaphrum secundatum and Thecaphora stajsicii from capsules of Oxalis radicosa. Belgium , Paraxerochrysium coryli (incl. Paraxerochrysium gen. nov.) from Corylus avellana. Brazil , Calvatia nordestina on soil, Didymella tabebuiicola from leaf spots on Tabebuia aurea, Fusarium subflagellisporum from hypertrophied floral and vegetative branches of Mangifera indica and Microdochium maculosum from living leaves of Digitaria insularis. Canada , Cuphophyllus bondii from a grassland. Croatia , Mollisia inferiseptata from a rotten Laurus nobilis trunk. Cyprus , Amanita exilis on calcareous soil. Czech Republic , Cytospora hippophaicola from wood of symptomatic Vaccinium corymbosum. Denmark , Lasiosphaeria deviata on pieces of wood and herbaceous debris. Dominican Republic , Calocybella goethei among grass on a lawn. France (Corsica) , Inocybe corsica on wet ground. France (French Guiana) , Trechispora patawaensis on decayed branch of unknown angiosperm tree and Trechispora subregularis on decayed log of unknown angiosperm tree. Germany , Paramicrothecium sambuci (incl. Paramicrothecium gen. nov.) on dead stems of Sambucus nigra. India , Aureobasidium microtermitis from the gut of a Microtermes sp. termite, Laccaria diospyricola on soil and Phylloporia tamilnadensis on branches of Catunaregam spinosa. Iran , Pythium serotinoosporum from soil under Prunus dulcis. Italy , Pluteus brunneovenosus on twigs of broadleaved trees on the ground. Japan , Heterophoma rehmanniae on leaves of Rehmannia glutinosa f. hueichingensis. Kazakhstan , Murispora kazachstanica from healthy roots of Triticum aestivum. Namibia , Caespitomonium euphorbiae (incl. Caespitomonium gen. nov.) from stems of an Eup

Published
2021

57. HIV Treatment with the Two-Drug Regimen Dolutegravir Plus Lamivudine in Real-world Clinical Practice: A Systematic Literature Review

Author

Patel, R., Evitt, L., Mariolis, I., Di Giambenedetto, Simona, d'Arminio Monforte, A., Casado, J., Cabello Ubeda, A., Hocqueloux, L., Allavena, C., Barber, T., Jha, D., Kumar, R., Kamath, R. D., Vincent, T., van Wyk, J., Koteff, J., Di Giambenedetto S. (ORCID:0000-0001-6990-5076), Patel, R., Evitt, L., Mariolis, I., Di Giambenedetto, Simona, d'Arminio Monforte, A., Casado, J., Cabello Ubeda, A., Hocqueloux, L., Allavena, C., Barber, T., Jha, D., Kumar, R., Kamath, R. D., Vincent, T., van Wyk, J., Koteff, J., and Di Giambenedetto S. (ORCID:0000-0001-6990-5076)

Abstract

The two-drug regimen dolutegravir plus lamivudine demonstrated durable efficacy for up to 3 years in phase III studies and a high barrier to resistance in treatment-naive and virologically suppressed people with HIV (PWH). This systematic literature review summarizes real-world evidence evaluating effectiveness and safety of dolutegravir plus lamivudine. We searched Ovid MEDLINE®, Embase®, PubMed, Cochrane library, and relevant international conference proceedings from 2013 to 2020. Qualitative synthesis of virologic suppression at Week 48, treatment-emergent resistance, discontinuation rates, and comorbidities was undertaken, with no statistical analyses conducted. Linked publications and potential for duplication in reporting of outcomes for cohorts and populations were identified, and the publication reporting the highest number of PWH receiving dolutegravir plus lamivudine was included in the analysis. Thirty-four studies reporting on cohorts of PWH not suspected to be linked or to include duplicate data receiving dolutegravir plus lamivudine were identified (N = 5017). Of 3744 virologically suppressed PWH who switched to dolutegravir plus lamivudine, 603 (16%) reported history of virologic failure. Nineteen studies included effectiveness data (n = 3558), four of which included data from treatment-naive PWH (n = 69). In studies with > 100 PWH, high rates of virologic suppression (Week 48, 97–100%) were maintained with dolutegravir plus lamivudine, with low rates of virologic failure (0–3.3 per 100 person-years of follow-up); one instance of emergent integrase strand transfer inhibitor resistance was reported in a complex treatment-experienced individual. Rates of discontinuation due to adverse events were low and consistent with previously observed trial data. Dolutegravir plus lamivudine minimally impacted renal function and had minimal impact on or improved lipid profiles and bone mineral density. This systematic review demonstrates that effectiveness

Published
2021

58. Evaluating the outcomes of a faculty capacity development programme on nurse educators in sub-Saharan Africa

Author

van Wyk, J M, Wolvaardt, J E, and Nyoni, C N

Subjects
ComputingMilieux_COMPUTERSANDEDUCATION
Abstract

BACKGROUND. The efficient education, deployment and ongoing retention of the nursing and midwifery workforce are key strategies to ensure a well-functioning healthcare system. The African region, however, has relatively few funded programmes to develop educational research capacity in novice academics while also addressing their leadership and educational needs. OBJECTIVES. To evaluate the outcomes of a faculty capacity development programme on nursing and midwifery educators in sub-Saharan Africa (SSA). This study explored the scope of scholarship outcomes, career trajectories and leadership outcomes. METHODS. A mixed methods study collected quantitative and qualitative data from nursing and midwifery educators (N=26) who enrolled for the sub-Saharan Africa-FAIMER Regional Institute (SAFRI) fellowship between 2009 and 2019. Data from project abstracts presented at a local conference and a subsequent electronic survey were included for review and analysis. Deductive thematic analysis was used to report the findings. RESULTS. Most projects (n=24) focused on undergraduate programmes at the home institutions. All the projects were presented at a local conference and 4 projects were published in peer-reviewed journals. The projects impacted on community and curriculum change, led to improvements in teaching and research and various strategies to improve learning and assessment at home institutions. The reported outcomes relating to the career trajectories of 7 fellows indicate that the programme accrued benefits to their institutions and the community, to students and their peers, and that they experienced personal benefits. CONCLUSION. The SAFRI fellowship vision is evident in the projects and subsequent actions of its nursing and midwifery fellows. Nurse educators' engagement with pedagogical evidence and design strategies has culminated in knowledge to solve some of the education-related challenges in their nursing education institutions.

Published
2020

59. Predictors of 1-year survival in South African transcatheter aortic valve implant candidates

Author

Liebenberg, J J, Doubell, A, van Wyk, J, Kidd, M, Mabin, T, and Weich, H

Abstract

BACKGROUND. Transcatheter aortic valve implantation (TAVI) has undergone rapid expansion internationally over the past 15 years. In view of resource constraints in developing countries, a major challenge in applying this technology lies in identifying patients most likely to benefit. The development of a risk prediction model for TAVI has proved elusive, with a reported area under the curve (AUC) of 0.6 - 0.65. The available models were developed in a First-World setting and may not be applicable to South Africa (SA).OBJECTIVES. To evaluate novel indicators and to develop a TAVI risk prediction model unique to the SA context. The current work represents the important initial steps of derivation cohort risk model development and internal validation.METHODS. Seven-year experience with 244 successive TAVI implants in three centres in Western Cape Province, SA, was used to derive risk parameters. All outcomes are reported in accordance with the Valve Academic Research Consortium definitions. Multiple preprocedural variables were assessed for their impact on 1-year survival using univariate and multivariate models.RESULTS. Factors found not to correlate with 1-year survival included age, renal function and aortic valve gradients. The commonly used surgical risk prediction models (Society of Thoracic Surgeons score and EuroSCORE) showed no correlation with outcomes. Factors found to correlate best with 1-year survival on multivariate analysis were preprocedural body mass index (BMI) (favouring higher BMI), preprocedural left ventricular end-diastolic dimension (LVED) and ejection fraction (EF) (favouring smaller LVED and higher EF), absence of atrial fibrillation, and three novel parameters: independent living, ability to drive a car, and independent food acquisition/ cooking. Discriminant analysis of these factors yielded an AUC of 0.8 (95% confidence interval 0.7 - 0.9) to predict 1-year survival, with resubstitution sensitivities and specificities of 72% and 71%, respectively.CONCLUSIONS. Apart from existing predictors, we identified three novel risk predictors (independent living, ability to drive a car, and independent food acquisition/cooking) for 1-year survival in TAVI candidates. These novel parameters performed well in this early evaluation, with an AUC for predicting 1-year survival higher than the AUCs for many of the internationally derived parameters. The parameters are inexpensive and easy to obtain at the initial patient visit. If validated prospectively in external cohorts, they may be applicable to other resource-constrained environments.

Published
2020

60. Perspectives on the Barrier to Resistance for Dolutegravir + Lamivudine, a Two-Drug Antiretroviral Therapy for HIV-1 Infection

Author

Boffito M, Waters L, Cahn P, Paredes R, Koteff J, Van Wyk J, Vincent T, Demarest J, Adkison K, and Quercia R

Subjects
virus diseases, HIV, antiretroviral, genetic barrier to resistance, integrase strand transfer inhibitor, two-drug regimen
Abstract

In HIV-1-infected patients, virological failure can occur as a consequence of the mutations that accumulate in the viral genome that allow replication to continue in the presence of antiretrovirals (ARVs). The development of treatment-emergent resistance to an ARV can limit a patient's options for future therapy, prompting the need for ARV regimens that are resilient to the emergence of resistance. The genetic barrier to resistance refers to the number of mutations in an ARV's therapeutic target that are required to confer a clinically meaningful loss of susceptibility to the drug. The emergence of resistance can be affected by pharmacological aspects of the ARV, including its structure, inhibitory quotient, therapeutic index, and pharmacokinetic characteristics. Dolutegravir (DTG) has demonstrated a high barrier to resistance, including when used in a two-drug regimen (2DR) with lamivudine (3TC). In the GEMINI-1 and GEMINI-2 studies, DTG +3TC was noninferior to DTG + emtricitabine/tenofovir disoproxil fumarate in treatment-naive participants, with similar proportions achieving HIV-1 RNA

Published
2020

61. Fischer carbene complexes of iridium(I) for application in catalytic transfer hydrogenation

Author

Ramollo, G. K. (G. Kabelo), Strydom, I. (Ian), Fernandes, M. A. (Manuel A.), Lemmerer, A. (Andreas), Ojwach, S. O. (Stephen O.), van Wyk, J. L. (Juanita L.), and Bezuidenhout, D. I. (Daniela I.)

Abstract

New examples of the very rare class of iridium(I) Fischer carbene complexes (FCCs) are reported from the facile transmetalation from group 6 FCCs. Postcomplexation modification of either the carbene ligand or the ancillary coligands results in a tunable IrI metal center, for unprecedented application as a (pre)catalyst in a benchmark transfer hydrogenation reaction. The introduction of an aminocarbene ligand with a pendant N-donor moiety capable of hemilabile coordination yielded the best catalytic results with turnover frequencies reaching 445 h–1 and requiring 0.1 mol % catalyst and 0.5 mol % base loading, respectively.

Published
2020

63. Effectiveness and safety of dolutegravir two‐drug regimens in virologically suppressed people living with HIV: a systematic literature review and meta‐analysis of real‐world evidence

Author

Punekar, Y S, primary, Parks, D, additional, Joshi, M, additional, Kaur, S, additional, Evitt, L, additional, Chounta, V, additional, Radford, M, additional, Jha, D, additional, Ferrante, S, additional, Sharma, S, additional, Van Wyk, J, additional, and de Ruiter, A, additional

Published
2021
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73. Durable Efficacy of Dolutegravir (DTG) Plus Lamivudine (3TC) in Antiretroviral Treatment-Naive Adults With HIV-1 Infection: 96-Week Results From the GEMINI Studies

Author

Cahn, P., primary, Madero, J. Sierra, additional, Arribas, J., additional, Antinori, A., additional, Ortiz, R., additional, Clarke, A., additional, Hung, C., additional, Rockstroh, J., additional, Girard, P., additional, Sievers, J., additional, Man, C., additional, Urbaityte, R., additional, Underwood, M., additional, Tenorio, A., additional, Pappa, K., additional, Wynne, B., additional, Gartland, M., additional, Aboud, M., additional, van Wyk, J., additional, Smith, K., additional, and El-Bahy, Y., additional

Published
2020
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74. Switching to DTG/3TC fixed-dose combination (FDC) Is non-inferior to continuing a TAF-based regimen in maintaining virologic suppression through 48 weeks (TANGO Study)

Author

Van Wyk, J., primary, Ajana, F., additional, Bisshop, F., additional, De Wit, S., additional, Osiyemi, Y., additional, Portilla, J., additional, Routy, J., additional, Wyen, C., additional, Ait-Khaled, M., additional, Nascimento, M., additional, Pappa, K., additional, Wang, R., additional, Wright, J., additional, Tenorio, A., additional, Wynne, B., additional, Aboud, M., additional, Gartland, M., additional, Smith, K., additional, and El-Bahy, Y., additional

Published
2020
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76. University and stakeholder partnerships to innovate in sport – the development of the South African Cricketers’ Association (SACA) career transition screening tool.

Author

Hendricks, S., van Wyk, J. P., Player, B., and Schlebusch, R.

Subjects
*CRICKET players, *TEAM sports, *SPORTS, *CRICKET (Sport)
Abstract

In sports, the value and mutual benefit of university–stakeholder partnerships have been well-recognised. It has been argued that cricket has a unique set of challenges compared to other team sports. In 2016, the South African Cricketers’ Association (SACA) and the University of Cape Town established a partnership to (i) conduct novel research on professional cricketers and (ii) ensure SACA programmes and initiatives are informed by said research and/or the currently available literature. As the demand on professional cricketers has increased, so has the interest in their career transitioning. That is, how do professional cricketers manage stressors created by changes (or non-changes) throughout their playing careers? To help identify gaps for intervention as a cricketer transitions through their professional career, the purpose of this short report is to describe how a university–stakeholder partnership developed a career transitioning screening tool for professional cricketers in South Africa. [ABSTRACT FROM AUTHOR]

Published
2023
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77. The knowledge and attitudes of final-year medical students regarding care of older patients.

Author

Naidoo, K. and van Wyk, J.

Subjects
*STUDENT health services, *OLDER patients, *STUDENT attitudes, *BIOETHICS, *MEDICAL students, *EDUCATIONAL films, *GERIATRICIANS, *GERIATRIC nursing, *AGEISM
Abstract

Background. South African (SA) studies indicate that elderly patients receive poor-quality and inadequate medical care at primary care level. Medical schools must be responsive to the needs of the communities they serve. This article reviews medical students' knowledge of and attitudes towards caring for older patients to identify areas to enhance their learning. Objective. To evaluate the knowledge and attitudes of final-year medical students regarding the care of older patients at the University of KwaZulu-Natal (UKZN), Durban, SA. Methods. All final-year medical students were invited to complete a self-administered questionnaire that evaluated their geriatric knowledge and attitudes. Geriatric knowledge was assessed with a modified Palmore's Facts on Aging Quiz, and the UCLA geriatric attitudes scale was used to assess their attitudes. Ethical approval was obtained from the UKZN Biomedical Research Ethics Committee and data were collected from September to November 2019. Results. There was a 79% (n=173) response rate. The average age of participants was 24 (interquartile range (IQR) 23 - 24) years. The mean geriatric knowledge score was 56.8% (standard deviation 10.4). The mean attitude score was 3.67 out of 5, indicating mildly positive attitudes towards caring for older patients. The majority of students expressed difficulties in communicating with older patients. Conclusion. The poor knowledge and mildly positive attitudes of students necessitate educational interventions to stimulate student interest in geriatrics and improve learning in this field, including increased attention to communication skills training relevant to the care of older patients. [ABSTRACT FROM AUTHOR]

Published
2021
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78. Mapping the medical outcomes study HIV health survey (MOS-HIV) to the EuroQoL 5 Dimension (EQ-5D-3 L) utility index

Author

Shi, Yuan, Thompson, Jennifer, Walker, A Sarah, Paton, Nicholas I, Cheung, Yin Bun, Agweng, E, Awio, P, Bakeinyaga, G, Isabirye, C, Kabuga, U, Kasuswa, S, Katuramu, M, Kityo, C, Kiweewa, F, Kyomugisha, H, Lutalo, E, Mugyenyi, P, Mulima, D, Musana, H, Musitwa, G, Musiime, V, Ndigendawan, M, Namata, H, Nkalubo, J, Labejja, P Ocitti, Okello, P, Olal, P, Pimundu, G, Segonga, P, Ssali, F, Tamale, Z, Tumukunde, D, Namala, W, Byaruhanga, R, Kayiwa, J, Tukamushaba, J, Abunyang, S, Eram, D, Denis, O, Lwalanda, R, Mugarura, L, Namusanje, J, Nankya, I, Ndashimye, E, Nabulime, E, Senfuma, O, Bihabwa, G, Buluma, E, Easterbrook, P, Elbireer, A, Kambugu, A, Kamya, D, Katwere, M, Kiggundu, R, Komujuni, C, Laker, E, Lubwama, E, Mambule, I, Matovu, J, Nakajubi, A, Nakku, J, Nalumenya, R, Namuyimbwa, L, Semitala, F, Wandera, B, Wanyama, J, Mugerwa, H, Lugemwa, A, Ninsiima, E, Ssenkindu, T, Mwebe, S, Atwine, L, William, H, Katemba, C, Acaku, M, Ssebutinde, P, Kitizo, H, Kukundakwe, J, Naluguza, M, Ssegawa, K, Namayanja, Nsibuka, F, Tuhirirwe, P, Fortunate, M, Acen, J, Achidri, J, Amone, A, Chamai, M, Ditai, J, Kemigisa, M, Kiconco, M, Matama, C, Mbanza, D, Nambaziira, F, Odoi, M Owor, Rweyora, A, Tumwebaze, G, Kalanzi, H, Katabaazi, J, Kiyingi, A, Mbidde, M, Mugenyi, M, Mwebaze, R, Okong, P, Senoga, I, Abwola, M, Baliruno, D, Bwomezi, J, Kasede, A, Mudoola, M, Namisi, R, Ssennono, F, Tuhirwe, S, Abongomera, G, Amone, G, Abach, J, Aciro, I, Arach, B, Kidega, P, Omongin, J, Ocung, E, Odong, W, Philliam, A, Alima, H, Ahimbisibwe, B, Atuhaire, E, Atukunda, F, Bekusike, G, Bulegyeya, A, Kahatano, D, Kamukama, S, Kyoshabire, J, Nassali, A, Mbonye, A, Naturinda, TM, Ndukukire, Nshabohurira, A, Ntawiha, H, Rogers, A, Tibyasa, M, Kiirya, S, Atwongyeire, D, Nankya, A, Draleku, C, Nakiboneka, D, Odoch, D, Lakidi, L, Ruganda, R, Abiriga, R, Mulindwa, M, Balmoi, F, Kafuma, S, Moriku, E, Hakim, J, Reid, A, Chidziva, E, Musoro, G, Warambwa, C, Tinago, G, Mutsai, S, Phiri, M, Mudzingwa, S, Bafana, T, Masore, V, Moyo, C, Nhema, R, Chitongo, S, Heyderman, Robert, Kabanga, Lucky, Kaunda, Symon, Kudzala, Aubrey, Lifa, Linly, Mallewa, Jane, Moore, Mike, Mtali, Chrissie, Musowa, George, Mwimaniwa, Grace, Sikwese, Rosemary, van Oosterhout, Joep, Ziwoya, Milton, Chimbaka, H, Chitete, B, Kamanga, S, Kayinga, T, Makwakwa, E, Mbiya, R, Mlenga, M, Mphande, T, Mtika, C, Mushani, G, Ndhlovu, O, Ngonga, M, Nkhana, I, Nyirenda, R, Cheruiyot, P, Kwobah, C, Ekiru, W Lokitala, Mokaya, M, Mudogo, A, Nzioka, A, Siika, A, Tanui, M, Wachira, S, Wools-Kaloustian, K, Alipalli, P, Chikatula, E, Kipaila, J, Kunda, I, Lakhi, S, Malama, J, Mufwambi, W, Mulenga, L, Mwaba, P, Mwamba, E, Mweemba, A, Namfukwe, M, Kerukadho, E, Ngwatu, B, Birungi, J, Paton, N, Boles, J, Burke, A, Castle, L, Ghuman, S, Kendall, L, Hoppe, A, Tebbs, S, Thomason, M, Thompson, J, Walker, S, Whittle, J, Wilkes, H, Young, N, Kapuya, C, Kyomuhendo, F, Kyakundi, D, Mkandawire, N, Mulambo, S, Senyonjo, S, Angus, B, Arenas-Pinto, A, Palfreeman, A, Post, F, Ishola, D, Arribas, J, Colebunders, R, Floridia, M, Giuliano, M, Mallon, P, Walsh, P, De Rosa, M, Rinaldi, E, Weller, I, Gilks, C, Kangewende, A, Luyirika, E, Miiro, F, Mwamba, P, Ojoo, S, Phiri, S, van Oosterhout, J, Wapakabulo, A, Peto, T, French, N, Matenga, J, Cloherty, G, van Wyk, J, Norton, M, Lehrman, S, Lamba, P, Malik, K, Rooney, J, Snowden, W, Villacian, J, Team, EARNEST Trial, UAM. Departamento de Medicina, and Instituto de Investigación Sanitaria Hospital Universitario de La Paz (IdiPAZ)

Subjects
Adult, Male, Mean squared error, Medicina, Intraclass correlation, HIV Infections, lcsh:Computer applications to medicine. Medical informatics, Standard deviation, 03 medical and health sciences, 0302 clinical medicine, EQ-5D, Outcome Assessment, Health Care, Statistics, Covariate, Humans, 030212 general & internal medicine, Least-Squares Analysis, Africa South of the Sahara, Health utility, Mathematics, Medical outcomes study HIV health survey, Research, 030503 health policy & services, 1. No poverty, Public Health, Environmental and Occupational Health, General Medicine, Health Surveys, Regression, 3. Good health, Mapping, Ordinary least squares, Quality of Life, lcsh:R858-859.7, Female, 0305 other medical science, Body mass index
Abstract

Background: Mapping of health-related quality-of-life measures to health utility values can facilitate cost-utility evaluation. Regression-based methods tend to lead to shrinkage of variance. This study aims to map the Medical Outcomes Study HIV Health Survey (MOS-HIV) to EuroQoL 5 Dimensions (EQ-5D-3 L) utility index, and to characterize the performance of three mapping methods, including ordinary least squares (OLS), equi-percentile method (EPM), and a recently proposed method called Mean Rank Method (MRM). Methods: This is a secondary analysis of data from a randomized HIV treatment trial. Baseline data from 421 participants were used to develop mapping functions. Follow-up data from 236 participants was used to validate the mapping functions. Results: In the training dataset, MRM and OLS, but not EPM, reproduced the observed mean utility (0.731). MRM, OLS and EPM under-estimated the standard deviation by 0.3, 26.6 and 1.7%, respectively. MRM had the lowest mean absolute error (0.143) and highest intraclass correlation coefficient (0.723) with the observed utility values, whereas OLS had the lowest mean squared error (0.038) and highest R-squared (0.542). Regressing the MRM- and OLS-mapped utility values upon body mass index and log-viral load gave covariate associations comparable to those estimated from the observed utility data (all P > 0.10). EPM did not achieve this property. Findings from the validation data were similar. Conclusions: Functions are available for mapping the MOS-HIV to the EQ-5D-3 L utility values. MRM and OLS were comparable in terms of agreement with the observed utility values at the individual level. MRM had better performance at the group level in terms of describing the utility distribution. Trial registration: NCT00988039. Registered 30 September 2009., The EARNEST trial was funded by the European and Developing Countries Clinical Trials Partnership (EDCTP, Grant Code: IP.2007.33011.003) with contributions from the Medical Research Council, UK; Institito de Salud Carlos III, Spain (Grant A107/90015); Irish Aid, Ireland; Swedish International Development Cooperation Agency (SIDA), Sweden; Instituto Superiore di Sanita (ISS), Italy; The World Health Organisation; and Merck, USA. Substantive in-kind contributions were made by the Medical Research Council Clinical Trials Unit, UK [MC_UU_12023/23], CINECA, Bologna, Italy, Janssen Diagnostics, Beerse, Belgium; GSK/ViiV Healthcare Ltd., UK; Abbott Laboratories, USA. Trial medication was donated by AbbVie, Merck, Pfizer, GSK and Gilead. The Malawi-Liverpool-Wellcome Trust Clinical Research Programme, University of Malawi

Published
2019

80. Comparing senior and middle manager perceptions of risk culture in a mining company

Author

Van Wyk, J. and Goede, J.F.

Subjects
Global financial crisis, Risk management, Risk decision-making, Risk culture
Abstract

MCom (Applied Risk Management, North-West University, Vanderbijlpark Campus, 2019 Managers apply risk management when seeking balance between risk taking and reward. The existence of a mature risk culture, rather than the presence of risk management capability, confirms the value that risk management contributes to the achievement of organisational strategies. This study assessed differences in perceptions of risk culture maturity between 31 top and 225 senior mining managers, and among a corporate office and two groups of 10 mining facilities. Risk culture maturity perceptions were assessed by applying the North-West University Centre for Applied Risk Management Risk Culture Scale (UARM RCS-2018). Results from the UARM RCS-2018 assessment confirmed that the management of the mining company studied perceived it to have a mature risk culture. However, there were significant differences in perceptions of risk culture at a 5% probability between both the top and senior management levels, and between the corporate office and the two groups of mining facilities. Twenty-three percent of participating managers selected ‘lack of accountability for managing risk’ as a priority item to improve the inclusion of risk in decision-making. The outcome of the study could be useful to board and executive members, since it confirms that the company’s investment in risk management capability enabled a risk management approach in support of risk-informed decision-making. In view of the lack of academic risk culture research available to the mining industry, this study offers introductory research that confirms risk management’s value by verifying the existence of a mature risk culture rather than assessing risk management capability. Masters

Published
2019

81. Planning Law

Author

Van Wyk, J and Van Wyk, J

Subjects
City planning and redevelopment law--South Africa, Environmental law--South Africa, Land use--Law and legislation--South Africa, Regional planning--Law and legislation--South Africa
Abstract

Now part of the Juta's Property Law Library series, the third edition provides a comprehensive discussion of the core aspects of South African planning law. The second edition, Planning Law (2012), reflected more of the new constitutional dispensation that brought with it not only a focus on values and equity, but also the development of an entirely new vision and structure for planning in the three spheres of government. It introduced some basic principles, addressed the apartheid roots of planning law in South Africa and gave detailed attention to the core of planning law. Since the publication of the second edition, planning law has received increasing attention and the constitutional, legislative and jurisprudential framework has undergone significant contextual development. Evolving constitutional insights are providing a better perspective on the content of planning law and the impact of planning frameworks and decisions on government, in its three spheres, as well as owners and neighbours. The Constitutional Court has, to a large extent, clarified the different planning competences and how these are allocated to each of the spheres of government. The enactment of the Spatial Planning and Land Use Management Act 16 of 2013 (SPLUMA) has paved the way for the discipline to develop considerably and to be more integrated. The resultant effect on planning law has been immense and has necessitated this new edition that has been reworked and updated in its entirety. Since planning law is multi-faceted, the book also deals with related administrative, environmental, local government and informal settlement issues. All the relevant legal principles and legislative provisions are amplified by discussions of applicable court decisions.

Published
2020

82. Breed effects and non additive genetic variation in indigenous and commercial sheep in an extensive environment

Author

Kao, 'Mamolleloa A., Van Wyk, J. B., Cloete, S. W. P., Kao, 'Mamolleloa A., Van Wyk, J. B., and Cloete, S. W. P.

Abstract

The first part of the study compared a commercial, the Dorper as an arguably adapted commercial breed to the Namaqua Afrikaner as an unselected, indigenous, far-tail breed. The Dorper conclusively outperformed the Namaqua Afrikaner with reference to live weight and growth traits. On the other hand, Namaqua Afrikaner lambs were superior to Dorpers for an adaptive trait like total tick count. Lamb survival was unaffected by breed. When meat traits were considered, it was evident that Dorper lambs outperformed their Namaqua Afrikaner contemporaries for important attributes associated with size and meat yield, namely carcass weight and dressing percentage. Dorper carcasses also attained better grades and were more tender according to instrumental measurements (Warner Brazler equipment). Dorper lambs were fatter than Namaqua Afrikaner lambs, as derived from the backfat thickness at the 13th rib and the rump. While leaner meat would be preferred by health-conscious consumers, it is important to note that, under the conditions of the study, Dorper carcasses were more likely to be in the preferred grades. In the second part of the study, Dorpers were evaluated against the SA Mutton Merino (SAMM; the most numerous dual-purpose breed in South Africa), as well as the reciprocal cross between the two breeds. No conclusive breed differences were found for weight traits, lamb survival, tick counts or meat traits. However, there was a suggestion that lamb survival of Dorpers was higher than that of their SAMM contemporaries (P = 0.08), but significance could not be demonstrated. Crossbred progeny outperformed the midparent value by 6.3% for weaning weight. The corresponding study on meat traits was constrained by low numbers. However, it was evident that the observed heterosis for weaning weight was also present a later growth stage. Direct heterosis estimates amounted to 7.7% for slaughter weight and 7.1% for carcass weight. These estimates were consistent with the literature for, Lesotho National Manpower Development secretariat (NMDS)

Published
2019

84. Developing a validated instrument to assess paediatric interns in South Africa.

Author

Naidoo, K. L. and van Wyk, J. M.

Subjects
*PEDIATRICS, *CLINICAL supervision, *CLINICAL competence, *CRONBACH'S alpha, *MEDICAL personnel, *INTERNS
Abstract

Background. In South Africa (SA), recently graduated medical practitioners (interns) are expected to be efficient and resilient in limited-resource contexts with multiple disease burdens. Work-based assessment in SA internship focuses on clinical skills and neglects the evaluation of non-clinical skills, which creates a daunting task for clinician supervisors expected to certify interns for independent practice. Objective. To develop a set of observable clinical activities as the basis for an instrument for evaluating interns during the paediatric rotation at hospitals. Methods. The core set of competencies was determined through a modified Delphi process. Focus group discussions were used in content validation and the proposed instrument was tested in a survey among 415 paediatric interns. The proposed instrument included several competencies and was further subjected to factor analysis. Results. This tool was found to be reliable, with an overall Cronbach's alpha coefficient of 0.927. Four major factors emerged from factor analysis performed on the final list of 61 observable clinical activities, aggregated into entrustable professional activities. The factors are associated with procedural clinical skills, holistic-care skills, and emotional skills related to social competence and self-management. Conclusion. A locally relevant competency-based assessment tool was developed to assess paediatric interns in the SA setting. The use of validated tools as multidimensional instruments to assess both clinical and non-clinical skills is largely neglected. The study serves as a model for developing validated work-based assessment instruments responsive to local needs and supports the development of holistic clinicians in healthcare contexts with high disease burdens. [ABSTRACT FROM AUTHOR]

Published
2021
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85. Successive Saccharification of Waste Paper as a Resource for Bio-product Development.

Author

Mokatse, K. M. P. and van Wyk, J. P. H.

Subjects
WASTE paper, POLLUTION, WASTE products, WASTE management, TRICHODERMA viride, CELLULASE
Abstract

Environmental pollution and the exploitation of fossil-based products are topical issues that should be a matter of concern to the global population. The production of bio-based substances from waste biomass is a way to reduce the consumption of fossil fuels and limit environmental pollution. Enzymatic catalysed saccharification of cellulose is an important step for the bio-conversion of biomass such as waste paper into glucose that could be utilized as a feedstock for the production of value added bioproducts and this process can also be considered as an alternative route of waste management. During this study, fresh cellulase enzyme from Trichoderma viride was incubated separately with seven different waste paper materials during twelve successive incubation periods of 2 h each. The amount of sugar released from each paper material during each incubation period was determined. The highest sugar concentration released from each paper materials was produced during the first incubation period except the filter paper for which the highest amount of sugar was produced during the 9th period of incubation. During these optimum sugar producing incubation periods the highest total sugar concentration was released from brown envelope paper (3.3 mg.mL-1 followed by foolscap paper (3.0 mg.mL-1) and office paper (2.8 mg.mL-1) while the lowest amount of sugar was released from Pick ’n Pay paper (0.6 mg.mL-1). The relative saccharification percentage was also calculated which showed that filter paper produced the highest amounts of sugar followed by newspaper, and foolscap paper with advertising paper from a retailer. Pick ’n Pay offered the highest resistance towards cellulase catalysed bio-conversion into sugar. [ABSTRACT FROM AUTHOR]

Published
2021
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89. RoundUp

Author

Van Wyk, J. Louw

Published
2002

91. Computers in legal education.

Author

Jones, Richard P. and Van Wyk, J.

Subjects
Law -- Study and teaching, Computer-assisted instruction -- Usage, Expert systems -- Usage
Published
1990

99. Transformative Property Law 1e

Author

Muller, G, Pienaar, GJ, Brits, R, Slade, BV, Van Wyk, J, Muller, G, Pienaar, GJ, Brits, R, Slade, BV, and Van Wyk, J

Subjects
Possession (Law), Things (Law), Property, Right of property
Abstract

Transformative Property Law honours Professor AJ Van der Walt (1956-2016) - scholar, mentor, and teacher. As the first incumbent of the DST/NRF South African Research Chair in Property Law his primary research goal was to develop the theoretical foundations for the transformation of property law in post-apartheid South Africa. Covering topics that are at the forefront of global thinking on property law, Transformative Property Law consists of 20 essays by a combination of senior and young scholars from South Africa, the United States of America, the United Kingdom, Ireland, the Netherlands, Belgium, and Zimbabwe. The essays focus on the themes that Professor Van der Walt developed during the first 10 years of the research chair, namely: (a) the single system of law and subsidiarity principles; (b) the marginality principle; (c) the development of the common law of property; (d) constitutional property law; and (e) property theory. This volume also includes a list of all Professor Van der Walt's research outputs and a list of all the Masters and Doctoral students that he supervised during his career.

Published
2018

100. Power electronics' polluting effects

Author

Redl, Richard, Tenti, Paolo, and Van Wyk, J. Daan

Subjects
Power electronics -- Design and construction, Electronic equipment and supplies -- Design and construction
Published
1997

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