Os compostos fenólicos e os glucosinolatos vêm sendo pesquisados quanto à atividade antimicrobiana contra diversos microrganismos patogênicos, dentre eles a Listeria monocytogenes, um perigoso contaminante de alimentos. Este trabalho teve como objetivo principal avaliar resíduos agroindustriais com atividade contra Listeria monocytogenes, bem como identificar a composição química, visando a aplicação na indústria de alimentos. Neste trabalho foram analisados 23 resíduos agroindustriais. Os extratos destes resíduos foram preparados a partir de cinco solventes (hexano; clorofórmio; acetato de etila; etanol:água (80:20 v/v) e água), os quais foram utilizados na avaliação do potencial antimicrobiano contra Listeria monocytogenes por meio do teste de difusão em ágar. Os extratos que apresentaram resultado positivo foram selecionados para as análises de Concentração Inibitória Mínima (CIM), Concentração Bactericida Mínima (CBM), citometria de fluxo e composição química por CG-EM. A L. monocytogenes mostrou-se sensível apenas aos extratos aquosos de talo de brócolis e casca de abóbora moranga e extrato clorofórmico de semente de mamão apresentando valores de CIM de 102,4 mg/mL, >102,4 mg/mL e de 6,4mg/mL, respectivamente. A análise de citometria de fluxo demonstrou alterações na morfologia das células, frente aos extratos testados. A principal ação dos extratos foi em função da inibição do crescimento do microrganismo e da redução de sua população. Os extratos apresentaram uma composição química peculiar. Nos extratos de talo de brócolis e casca de abóbora foram encontrados alguns ácidos fenólicos e orgânicos, enquanto que no extrato de semente de mamão o único composto encontrado com potencial antimicrobiano foi o benzil-isotiocianato. Diante da dificuldade em evitar a contaminação de alimentos por L. monocytogenes, a utilização de compostos antimicrobianos naturais derivados de resíduos agroindustriais se mostra promissora e pode ser uma alternativa para auxiliar na segurança dos alimentos. / The phenolic compounds and glucosinolates have been investigated for their antimicrobial activity against several pathogenic microorganisms, including Listeria monocytogenes, a dangerous contaminant of food. This study has as main objective valuate agroindustrial residues with activity against Listeria monocytogenes, well as evaluate the chemical composition, aimed at their application in food industry. In this work we analyzed 23 agroindustrial residues. The extracts of these residues were prepared from five solvents (hexane, chloroform, ethyl acetate, ethanol:water (80:20 v/v) and water), which were used in evaluating the antimicrobial potential against Listeria monocytogenes by the agar diffusion test. The extracts that tested positive were selected for analysis of Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC), flow cytometry and chemical composition by GC-MS. L. monocytogenes showed sensibility only to aqueous extracts of stalk of broccoli and peel pumpkin and chloroform extract of papaya seed showing MIC values of 102.4 mg / mL,> 102.4 mg / mL and 6.4 mg / mL, respectively. The flow cytometry analysis showed changes in cell morphology, front of to tested extracts. The main action of the extracts was as a function the inhibition of growth of microorganisms and reducing its population. The extracts showed a peculiar chemical composition. In extracts of broccoli stalks and peel pumpkin were found some phenolic acids and organic, while the extract in papaya seed found the single compound with antimicrobial potential was benzyl-isothiocyanate. Given the difficulties in preventing food contamination by L. monocytogenes, the use of natural antimicrobial compounds derived from agroindustrial residues shows promise and can be an alternative to aid in safety of food.

MSCAGR (Agricultural Economics) / Department of Agricultural Economics and Agribusiness / See the attached abstract below

La presente investigación está basada en la metodología científica, en la cual se buscó determinar las principales limitaciones internas de los productores que explican el incremento de las importaciones de papa precocida congelada. Para ello, se plantea un objetivo general, el cual consiste en analizar cómo las importaciones de papa precocida congelada de Países Bajos durante 2010-2019 se incrementaron por las limitaciones internas de los productores peruanos. La investigación se desarrollará a través de un enfoque mixto con un diseño no experimental de tipo transversal descriptivo. En primer lugar, se obtuvo información de fuentes secundarias, las cuales fueron artículos de investigación en revistas indexadas, tesis de grados y bases de datos obtenidos de Trade Map, UN Comtrade, Veritrade, FAOSTAT, MIDAGRI e INIA. En las fuentes secundarias se encontraron bases teóricas que avalan la investigación. Asimismo, con estas fuentes se logró plantear una realidad problemática que permite evidenciar que existe el problema general y los específicos. De esta manera, se pudo obtener argumentos que validen el tema tanto de forma cuantitativa como cualitativa a traves del análisis de documentos teóricos y resultados de bases de datos. Para adquirir la información primaria, se determinó una población de estudio conformada por 12 expertos del sector y el tema. Entre los miembros tenemos a 4 ingenieros del CIP, 4 especialistas de instituciones como SUNAT y consultoras, 4 investigadores agrícolas del INIA, MIDAGRI, Asociación de Productores Agropecuarios de Oyón (APAO) y por parte de la Municipalidad provincial de Oyón, a quienes se les realizaron entrevistas semi estructuradas. Se utilizó el software Atlas. Ti para procesar la información brindada por los especialistas, y así poder analizar los objetivos de forma detallada. Por último, las principales variables que influyeron en el incremento de la importación de papa precocida congelada durante el periodo de 2010-2019 fueron: la tecnología, la organización y el rendimiento. Según los resultados obtenidos en el estudio, se explicará las limitantes internas de los productores peruanos que impactaron en el comportamiento de las importaciones de papa congelada precocida con el fin de poder contribuir a futuras investigaciones que se realicen respecto al tema de investigación escogido. / This research is based on scientific methodology, in which we sought to determine the main internal limitations of producers that explain the increase in imports of frozen prefried potatoes. For this purpose, the general objective is to analyze how imports of frozen prefried potato from the Netherlands during 2010-2019 increased due to the internal limitations of Peruvian producers. The research will be developed through a mixed approach with a descriptive cross-sectional non-experimental design. First, information was obtained from secondary sources, which were research articles in indexed journals, graduate theses and databases obtained from Trade Map, UN Comtrade, Veritrade, FAOSTAT, MIDAGRI and INIA. In the secondary sources, theoretical bases were found to support the research. Likewise, with these sources, a problematic reality was established to demonstrate the existence of the main problem and the specific ones. In this way, it was possible to obtain arguments that validate the topic both quantitatively and qualitatively through the analysis of theoretical documents and database results. In order to acquire the primary information, a study population of 12 experts of the sector and the subject was determined. Among the members were 4 engineers from CIP, 4 specialists in the sector and from institutions such as SUNAT and consulting firms, 4 agricultural researchers from INIA, MIDAGRI, the Oyón Agricultural Producers' Association (APAO) and the Oyón Provincial Municipality, who were interviewed in semi-structured interviews. Atlas.ti software was used to process the information provided by the specialists in order to analyze the objectives in a detailed and thorough manner. Finally, the main variables that influenced the increase in the import of precooked frozen potato during the period 2010-2019 were: technology, organization and yield. According to the results obtained in the study, the internal limitations of Peruvian producers that impacted the behavior of precooked frozen potato imports will be explained in order to be able to contribute to future research to be carried out regarding the chosen research topic. / Tesis

Text in Afrikaans / Die doel van die onderhawige studie is onder meer om loopbaanorientering aan die tersiere student (BSc Agric) teoreties te fundeer. 'n Uitgebreide Europese studiereis is ondemeem met die doel om bestaande loopbaanorienteringsprogramme aan tersiere instansies, veral universiteite, te ondersoek en die effektiwiteit daarvan te evalueer ten einde voortreflikhede te implementeer. In hierdie studie word die loopbaanorienteringsprogram vir BSc (Agric)studente aan die Universiteit van Pretoria wat reeds in 1994 ontwerp en ge'implementeer is, beskryf sowel as die behoeftepeiling wat onder BSc (Agric)-studente (voor en na die implementering van die program), en vennote in die landboubedryf gedoen is. 'n Verdere doel met die studie is om 'n wetenskaplik verantwoorde loopbaanorienteringsverrykingsprogram vir BSc (Agric)-studente aan die Universiteit van Pretoria te begrond, te ontwerp, die implementering daarvan te beskryf en die resultate daarvan te evalueer. Daar is gepoog om beide loopbaanontwikkelings- en studente-ontwikkelingsteoriee te beskryf en uit te le as fundering vir 'n verantwoorde loopbaanorienteringsverrykingsprogram vir tersiere studente. 'n Oorsig en perspektief is gebied op bestaande loopbaanorienteringsprogramme en -inisiatiewe in 'n intemasionale, nasionale en plaaslike konteks. Die verskynsel van die snelveranderende wereld-van-werk is literatuurmatig gepresiseer en die implikasies uitgewys vir die opleiding van en loopbaanorientering aan die student in die Landbouwetenskap. 'n Behoeftepeiling van loopbaan (en lewens-)kundighedeen vaardighede waaroor graduandi moet beskik is gedoen onder BSc (Agric)-studente (v66r en mi programimplementering) en onder vennote in die landboubedryf. Die ontwikkeling, beslaggewing en ,evaluering van 'n loopbaanorienteringsverrykingsprogram vir BSc (Agric)-studente is beskryf en toegelig. 'n Samevatting van die studie is gegee met enkele gemotiveerde aanbevelings wat uit die navorsing voortvloei. Voorstelle is gemaak vir die inisiering van 'n loopbaansentrum vir studente van die Universiteit van Pretoria. / The aim of this study is amongst others to lay the theoretical foundation of career orientation for BSc (Agric)-students. An extensive European study tour was undertaken with the aim of investigating and evaluating existing career orientation programmes and/or student enrichment endeavours at the various tertiary institutions especially universities. The effectiveness of these programmes was evaluated with the aim of utilizing and implementing aspects of them. In this study the career orientation enrichment programme for BSc (Agric)-students that was already designed and implemented at the University of Pretoria in 1994, is described. The needs of the BSc (Agric)-students before and after the implementation of this programme were determined as well as those of the partners in the agricultural industry. Another aim of this study is to describe the foundation, design and implementation of a scientific, accountable career orientation enrichment programme for BSc (Agric)-students at the University of Pretoria and to evaluate the outcome thereof. The various career development and student development theories are elucidated and described as a foundation for an accountable career orientation enrichment programme for tertiary students. An overview is given of career orientation programmes and initiatives in an international, national and local context. The phenomenon of the fast changing world-ofwork is described and defined more precisely through a literature study with reference to the implications for the training of and career orientation regarding the student in the Science of Agriculture. An investigation was done of the career (and life-) skills that graduates have to attain. The needs and views of BSc (Agric)-students (before and after the programme implementation) and partners in the agricultural industry were extracted. A summary is given of the arguments put forward in this thesis together with some recommendations that have emerged from this research. Proposals are made for the initiation of a career centre for students at the University of Pretoria. / Psychology of Education / D. Ed. (Sielkundige Opvoedkunde)

O presente trabalho tem como objetivo descrever o sistema produtivo e quantificar as fontes de crescimento da orizicultura no Mato Grosso, em competição com a cotonicultura, a milhocultura e a sojicultura, no período de 1980 a 2001. Nota-se grandes avanços tecnológicos empregados na cultura do arroz sob o sistema terras altas, diminuindo a diferença produtiva entre este e o arroz irrigado. Diante destas alterações e da carência de informações no tocante ao cultivo de terras altas, são necessários estudos que demonstrem essas alterações de forma sistematizada. Utilizou-se a metodologia “shift-share” na mensuração das fontes de crescimento das atividades agrícolas, tendo como fatores explicativos da evolução da produção os efeitos área, rendimento, composição da produção e localização geográfica. As alterações na área cultivada das culturas foram quantificadas pelos efeitos escala e substituição, realizadas na análise individual por cultura. Com enfoque no arroz, as demais culturas estudadas foram o algodão, o milho e a soja, escolhidas por competirem em maior grau com o arroz na ocupação da área agrícola. Apesar das pastagens apresentarem grande relação com a orizicultura, estas não foram incluídas no estudo, devido à ausência de informações referentes à área e ao rendimento para as microrregiões em todo o período. Verificou-se que o arroz de terras altas continua carregando o estigma de abertura de área para domesticação da terra e posterior substituição pela cultura da soja ou pastagens. A orizicultura tem seu uso também relacionado à recuperação de pastagens e rotação com soja. As culturas do algodão e do milho pouco se relacionam diretamente com o arroz, ao contrário da soja e das pastagens. Constataram-se alguns entraves ao desenvolvimento da orizicultura no estado, como a oferta insuficiente de sementes, problemas de mistura varietal na principal variedade cultivada no estado, assim como a falta de estrutura de secagem e armazenagem própria dos produtores, ocasionando dificuldades na comercialização. Todas as culturas analisadas tiveram crescimento da produção de 1980 a 2001. A cultura do arroz apresentou crescimento da produção à taxa de 2,4% a.a., devido aos efeitos rendimento e localização geográfica, enquanto o efeito área foi negativo à taxa de 0,99% a.a.. A cultura do arroz foi a única a ceder área agrícola para as demais culturas (208.003 ha), na década de 1980. Os efeitos composição da produção (4,56% a.a.) e área (4,04% a.a.) foram os mais importantes na explicação do crescimento do valor da produção das culturas no estado no período de 1980 a 2000; os efeitos rendimento e localização geográfica também foram positivos. Esses resultados indicam que o crescimento do valor da produção decorre de uma alteração na composição das culturas, ao se substituir ou aumentar a área plantada com culturas mais rentáveis, e decorre também da incorporação de novas áreas, verificada na década de 1990. A elevação do rendimento (3,83% a.a.) indica o aumento da produtividade das culturas e o efeito localização geográfica (0,72% a.a.) denota a mudança de cultivo para regiões que apresentam melhores condições de cultivo, como solo e condições climáticas. / The current study aims to describe the rice production system and to quantify its sources of growth in the state of Mato Grosso, while competing with cotton, corn and soybean crops, between 1980 and 2001. Great technological advances have been observed in upland rice growing, reducing productive differences between the upland and the irrigated rice. In face of these changes and the lack of information regarding the upland rice, studies showing these alterations in a systematized way are required. The shift-share approach was used to measure the sources of growth of agricultural activities, having as determining factors of production increase the area, yield, crop combination and geographical location effects. Changes in the cultivated area were quantified by the scale and substitution effects, in the individual analysis by culture. Cotton, corn, soybean and rice were the cultures studied, with emphasis to the last one. They were chosen due to the large degree of competition with rice in the utilization of the agricultural area. Despite the strong relation between rice and pastures, they were not included in this study. It is due to the lack of information regarding the area and the yield of pastures in those micro-regions, during the analyzed period. It was observed that the upland rice still has a stigma of opening up rural areas, for domestication of land and following substitution by soybean plantation or pasture. Rice growing is also related to pasture recovery and soybean rotation. Its relation with corn and cotton growing, in turn, is not as direct. Some obstacles to the development of rice cultivation in the state of Mato Grosso were detected. As examples: the insufficient supply of seeds; varietal mixture problems in the major variety cultivated in the state; the lack of drying and storage structures for the growers, which hampers commercialization. All of the cultures analyzed registered an increase of production from 1980 to 2001. Rice production grew at an annual average rate of 2.4%, due to yield and geographical location effects, while the area effect was negative by 0.99% per year. Rice was the only culture that transferred agricultural area to the others (208,003 ha) in the eighties. The crop combination (4.56% per year) and the area (4.04% per year) effects were the most important effects in the explanation of production value growth of these crops, from 1980 to 2000, in Mato Grosso. Yield and geographical location effects were also positives. These results indicate that the production value growth derives from an alteration in crops combination – when the plantation is substituted or the area cultivated with a more profitable culture is expanded. It derives, as well, from the aggregation of new areas, as observed in the nineties. The increase of yield (3.83% per year) indicates the growth of these crops productiveness. The geographical location effect (0.72% per year) denotes a move of the cultivation to regions that present better growing conditions, as soil and weather conditions.

O presente trabalho tem como objetivo descrever o sistema produtivo e quantificar as fontes de crescimento da orizicultura no Mato Grosso, em competição com a cotonicultura, a milhocultura e a sojicultura, no período de 1980 a 2001. Nota-se grandes avanços tecnológicos empregados na cultura do arroz sob o sistema terras altas, diminuindo a diferença produtiva entre este e o arroz irrigado. Diante destas alterações e da carência de informações no tocante ao cultivo de terras altas, são necessários estudos que demonstrem essas alterações de forma sistematizada. Utilizou-se a metodologia "shift-share" na mensuração das fontes de crescimento das atividades agrícolas, tendo como fatores explicativos da evolução da produção os efeitos área, rendimento, composição da produção e localização geográfica. As alterações na área cultivada das culturas foram quantificadas pelos efeitos escala e substituição, realizadas na análise individual por cultura. Com enfoque no arroz, as demais culturas estudadas foram o algodão, o milho e a soja, escolhidas por competirem em maior grau com o arroz na ocupação da área agrícola. Apesar das pastagens apresentarem grande relação com a orizicultura, estas não foram incluídas no estudo, devido à ausência de informações referentes à área e ao rendimento para as microrregiões em todo o período. Verificou-se que o arroz de terras altas continua carregando o estigma de abertura de área para domesticação da terra e posterior substituição pela cultura da soja ou pastagens. A orizicultura tem seu uso também relacionado à recuperação de pastagens e rotação com soja. As culturas do algodão e do milho pouco se relacionam diretamente com o arroz, ao contrário da soja e das pastagens. Constataram-se alguns entraves ao desenvolvimento da orizicultura no estado, como a oferta insuficiente de sementes, problemas de mistura varietal na principal variedade cultivada no estado, assim como a falta de estrutura de secagem e armazenagem própria dos produtores, ocasionando dificuldades na comercialização. Todas as culturas analisadas tiveram crescimento da produção de 1980 a 2001. A cultura do arroz apresentou crescimento da produção à taxa de 2,4% a.a., devido aos efeitos rendimento e localização geográfica, enquanto o efeito área foi negativo à taxa de 0,99% a.a.. A cultura do arroz foi a única a ceder área agrícola para as demais culturas (208.003 ha), na década de 1980. Os efeitos composição da produção (4,56% a.a.) e área (4,04% a.a.) foram os mais importantes na explicação do crescimento do valor da produção das culturas no estado no período de 1980 a 2000; os efeitos rendimento e localização geográfica também foram positivos. Esses resultados indicam que o crescimento do valor da produção decorre de uma alteração na composição das culturas, ao se substituir ou aumentar a área plantada com culturas mais rentáveis, e decorre também da incorporação de novas áreas, verificada na década de 1990. A elevação do rendimento (3,83% a.a.) indica o aumento da produtividade das culturas e o efeito localização geográfica (0,72% a.a.) denota a mudança de cultivo para regiões que apresentam melhores condições de cultivo, como solo e condições climáticas. / The current study aims to describe the rice production system and to quantify its sources of growth in the state of Mato Grosso, while competing with cotton, corn and soybean crops, between 1980 and 2001. Great technological advances have been observed in upland rice growing, reducing productive differences between the upland and the irrigated rice. In face of these changes and the lack of information regarding the upland rice, studies showing these alterations in a systematized way are required. The shift-share approach was used to measure the sources of growth of agricultural activities, having as determining factors of production increase the area, yield, crop combination and geographical location effects. Changes in the cultivated area were quantified by the scale and substitution effects, in the individual analysis by culture. Cotton, corn, soybean and rice were the cultures studied, with emphasis to the last one. They were chosen due to the large degree of competition with rice in the utilization of the agricultural area. Despite the strong relation between rice and pastures, they were not included in this study. It is due to the lack of information regarding the area and the yield of pastures in those micro-regions, during the analyzed period. It was observed that the upland rice still has a stigma of opening up rural areas, for domestication of land and following substitution by soybean plantation or pasture. Rice growing is also related to pasture recovery and soybean rotation. Its relation with corn and cotton growing, in turn, is not as direct. Some obstacles to the development of rice cultivation in the state of Mato Grosso were detected. As examples: the insufficient supply of seeds; varietal mixture problems in the major variety cultivated in the state; the lack of drying and storage structures for the growers, which hampers commercialization. All of the cultures analyzed registered an increase of production from 1980 to 2001. Rice production grew at an annual average rate of 2.4%, due to yield and geographical location effects, while the area effect was negative by 0.99% per year. Rice was the only culture that transferred agricultural area to the others (208,003 ha) in the eighties. The crop combination (4.56% per year) and the area (4.04% per year) effects were the most important effects in the explanation of production value growth of these crops, from 1980 to 2000, in Mato Grosso. Yield and geographical location effects were also positives. These results indicate that the production value growth derives from an alteration in crops combination - when the plantation is substituted or the area cultivated with a more profitable culture is expanded. It derives, as well, from the aggregation of new areas, as observed in the nineties. The increase of yield (3.83% per year) indicates the growth of these crops productiveness. The geographical location effect (0.72% per year) denotes a move of the cultivation to regions that present better growing conditions, as soil and weather conditions.

As of fairly recently, migrant workers from South East Asia are migrating to Canada for work in the agricultural industry. Little research has been conducted on migration routes and recruitment patterns of these migrant workers. Interviews with 13 workers and three support workers were conducted between May and July 2011 to learn about this process; specifically with how these individuals are getting to Canada, and how they maintain (or do not maintain) relationships with the private intermediaries and employment agencies that facilitate this movement. This research will fill a gap in the literature by describing the recruitment processes of ‘low-skilled’ workers into Canada and, more importantly, it will provide a much-needed space for South East Asian migrants to share their experiences about working in Canada.

Text in Afrikaans / Die doel van die onderhawige studie is onder meer om loopbaanorientering aan die tersiere student (BSc Agric) teoreties te fundeer. 'n Uitgebreide Europese studiereis is ondemeem met die doel om bestaande loopbaanorienteringsprogramme aan tersiere instansies, veral universiteite, te ondersoek en die effektiwiteit daarvan te evalueer ten einde voortreflikhede te implementeer. In hierdie studie word die loopbaanorienteringsprogram vir BSc (Agric)studente aan die Universiteit van Pretoria wat reeds in 1994 ontwerp en ge'implementeer is, beskryf sowel as die behoeftepeiling wat onder BSc (Agric)-studente (voor en na die implementering van die program), en vennote in die landboubedryf gedoen is. 'n Verdere doel met die studie is om 'n wetenskaplik verantwoorde loopbaanorienteringsverrykingsprogram vir BSc (Agric)-studente aan die Universiteit van Pretoria te begrond, te ontwerp, die implementering daarvan te beskryf en die resultate daarvan te evalueer. Daar is gepoog om beide loopbaanontwikkelings- en studente-ontwikkelingsteoriee te beskryf en uit te le as fundering vir 'n verantwoorde loopbaanorienteringsverrykingsprogram vir tersiere studente. 'n Oorsig en perspektief is gebied op bestaande loopbaanorienteringsprogramme en -inisiatiewe in 'n intemasionale, nasionale en plaaslike konteks. Die verskynsel van die snelveranderende wereld-van-werk is literatuurmatig gepresiseer en die implikasies uitgewys vir die opleiding van en loopbaanorientering aan die student in die Landbouwetenskap. 'n Behoeftepeiling van loopbaan (en lewens-)kundighedeen vaardighede waaroor graduandi moet beskik is gedoen onder BSc (Agric)-studente (v66r en mi programimplementering) en onder vennote in die landboubedryf. Die ontwikkeling, beslaggewing en ,evaluering van 'n loopbaanorienteringsverrykingsprogram vir BSc (Agric)-studente is beskryf en toegelig. 'n Samevatting van die studie is gegee met enkele gemotiveerde aanbevelings wat uit die navorsing voortvloei. Voorstelle is gemaak vir die inisiering van 'n loopbaansentrum vir studente van die Universiteit van Pretoria. / The aim of this study is amongst others to lay the theoretical foundation of career orientation for BSc (Agric)-students. An extensive European study tour was undertaken with the aim of investigating and evaluating existing career orientation programmes and/or student enrichment endeavours at the various tertiary institutions especially universities. The effectiveness of these programmes was evaluated with the aim of utilizing and implementing aspects of them. In this study the career orientation enrichment programme for BSc (Agric)-students that was already designed and implemented at the University of Pretoria in 1994, is described. The needs of the BSc (Agric)-students before and after the implementation of this programme were determined as well as those of the partners in the agricultural industry. Another aim of this study is to describe the foundation, design and implementation of a scientific, accountable career orientation enrichment programme for BSc (Agric)-students at the University of Pretoria and to evaluate the outcome thereof. The various career development and student development theories are elucidated and described as a foundation for an accountable career orientation enrichment programme for tertiary students. An overview is given of career orientation programmes and initiatives in an international, national and local context. The phenomenon of the fast changing world-ofwork is described and defined more precisely through a literature study with reference to the implications for the training of and career orientation regarding the student in the Science of Agriculture. An investigation was done of the career (and life-) skills that graduates have to attain. The needs and views of BSc (Agric)-students (before and after the programme implementation) and partners in the agricultural industry were extracted. A summary is given of the arguments put forward in this thesis together with some recommendations that have emerged from this research. Proposals are made for the initiation of a career centre for students at the University of Pretoria. / Psychology of Education / D. Ed. (Sielkundige Opvoedkunde)

Магистерская диссертация состоит из введения, трех глав, заключения, списка литературы и приложений. В работе рассмотрены теоретико-прикладные аспекты создания тепличных комплексов в России. Проанализирован район расположения планируемого тепличного комплекса, рассмотрены основные представленные тепличные комплексы по выращиванию овощной продукции в защищенном грунте. Определены источники финансирования, сформирован бюджет проекта, рассчитаны показатели экономической эффективности проекта. В заключении сформулированы основные выводы и обобщены результаты исследования. / The master's thesis consists of three chapters, conclusion, list of references and applications. The paper considers the theoretical and applied aspects of creating greenhouse complexes in Russia. The location area of the proposed greenhouse complex is analyzed, the main heat-producing complexes represented by heat for growing vegetables in sheltered soil are considered. Sources of financing have been identified, a project budget has been formed, and indicators of the project's economic efficiency have been calculated. In conclusion, the main conclusions are formulated and the research results are summarized.