Abstract This essay discusses different explanations and interpretations of what characterizes large areas containing clearance cairns (cairn fields). Results from the analyses show that there are different explanations about when and why cairn fields and clearance cairns occur. Explanations vary from introduction of the wooden ard in the early Bronze Age to the introduction of rational hay-making in the Roman Iron Age.  There is, anyway, relative agreement considering why and when cairn fields were abandoned. The reason suggested is an increasing pasturage with the consequence of reducing soil to poverty during the period of the Great Migration or in the Viking Age. The most likely cultivation system in cairn fields is a system consisting of both intensive and extensive characteristics. The latter coincides with the probable mobility of settlements. When it comes to cultivation a possible development is the use of hand-tools initially, followed by an increased use of wooden ards. Stones from clearance cairns have often been used when graves were built. Sometimes this is interpreted in ritualistic and symbolic terms, but a practical explanation seems most likely. Graves in areas of clearance cairns are usually located nearby the settlements. This is either indicating a more developed individualized ownership of land in the Iron Age or a stronger cult of ancestors in the period. When the element of ritual and symbolism in the agriculture practiced in areas of clearance cairns is discussed this is, almost without exception, a question for archaeologists, though many archaeologist, like culture geographers, emphasize practical explanations to different phenomena.   KEYWORDS: Areas of clearance cairns, clearance cairns, cultivation systems, settlements, ritual and symbolism.

Cannabis social clubs (CSCs) in Spain are non-profit organizations that associate cannabis users. According to the Spanish criminal law drug consumption itself, as well as possession of a drug, is not considered a crime but rather an administrative offence. Yet, social club activities could possibly lower the health risk of cannabis among its users, mainly because they are avoiding the black market and they can control the drug quality as well as the amount of drug intake relating to the fixed consumption limit (Barriuso, 2005; Barriuso, 2011). The aim of the research conducted for this thesis was to reveal how Spanish CSCs function on daily basis from their members'perspective and how the cannabis cultivation and distribution is carried out. Although this is an explorative research, in addition it could indicate the possible weaknesses and strengths of this model as well as possible risks and benefits for its members. The open explorative qualitative study design was used. For data gathering qualitative data was chosen in a semi-structured focus group method (Miovský, 2006; Morgan 2001). One of the important joint activities of the social club members is cultivation of cannabis plants and sparing of the harvest just for their own consumption. As such, it's members can avoid the black market and...

Este estudo privilegiou a neologia relacionada aos termos encontrados em discursos especializados sobre a cultura da soja no Brasil, tomando-se, como objetivo geral, a descrição, organização e sistematização dos termos neológicos desta área de especialidade, considerados em uma sincronia estabelecida entre os anos de 2004 e 2011, com base em corpus documental. Foram observadas teorias linguísticas capazes de dar conta dos fenômenos que permeiam a análise, sobretudo relativas à morfologia e à semântica, às quais se somaram os estudos da Terminologia e da Neologia, indispensáveis à compreensão, uma do campo de conhecimento terminológico e outra, principalmente acerca dos processos de formação de neologismos na língua. A Teoria Comunicativa da Terminologia é a perspectiva teórica que norteou este trabalho, considerando o intuito de descrever o funcionamento in vivo dos termos neológicos. Os estudos teóricos se pautaram em diversos autores, consoante suas disciplinas de estudo: 1) Terminologia: Wüster (1996, 1998), Cabré (1993, 1999, 2006), Sager (1990), Fedor de Diego (1995), Alves (1998, 1999), Aubert (2001), Krieger (2000, 2001), Biderman (2001), Barros (2004), Remenche (2010); 2) Neologia: Guilbert (1972, 1975), Boulanger (1990), Alves (1994, 1999, 2000, 2010a, 2010b), Cabré (1993), Barbosa (1981, 1998); análise linguística: Kocourek (1982), Sandmann (1989), Alves (1994), Biderman (1999), Neves (2000), Sardinha (2007), Lakoff e Johnson (2002), Ullmann (1964), dicionários Houaiss eletrônico (2009) e Aulete on-line. Para a compreensão do domínio de especialidade da cultura da soja, foram consultados diversos autores: Borém (1999), Degrande e Vivan (2005), Nemoto (2005), Franchin (2011), Garcia et al. (2007), Gazziero et al. (2006), Gonçalves et al. (2007), Polizel (2007) Lima (2008), Gazziero, Voll e Adegas (2011), Hirakuri (2012), Martha Jr. e Contini (2012), dentre outros. Confirmaram-se as hipóteses estabelecidas para a consecução deste estudo: os constantes investimentos em tecnologias para a produção da soja pressupõem que sejam criados neologismos para nomear as inovações; as terminologias dos diferentes domínios e, consequentemente, os seus neologismos, possuem padrões morfolexicais peculiares; se toda área do saber apresenta singularidades próprias, então a da cultura da soja apresenta as suas. Foram adotados procedimentos metodológicos como a utilização do programa WordSmith Tools, para o processamento de cinquenta e sete textos, publicados pela Embrapa Soja, dos quais se extraiu o conjunto dos termos, que foram lançados em fichas. A partir deste conjunto, com base em corpora de exclusão, foi obtido o corpus de análise, constituído por cento e dois termos neológicos. O trabalho de levantamento dos termos revelou que os textos do corpus documental contemplam termos que podem ser alusivos a outras culturas do setor agrícola e a outras áreas do saber. Os termos neológicos levantados, todos constituídos por composição sintagmática, foram organizados em categorias temáticas, observando-se que são diversificados os mecanismos possíveis de formação dos termos, que podem conter, a partir de uma base substantival, elementos como símbolos, siglas, números, zoônimos, antropônimos, topônimos, nome de produto agropecuário, adjetivos qualificadores ou classificadores, substantivos em função adjetiva, locuções adjetivas (sintagmas preposicionais), e serem marcados por metáforas. Isto implica observar as inúmeras possibilidades de ampliação do sistema lexical, em especial das terminologias. / This study focused on neology related to the terms found in specialized discourses on soybean cultivation in Brazil, taking as a general purpose description, organization and systematization of neological terms of this specialty area, considered on a synchronization established between the years of 2004 and 2011, based on documentary corpus. Linguistic theories were considered able to handle the phenomena that underlie the analysis, especially concerning the morphology and semantics, to which were added the study of Terminology and Neology, indispensable to understanding, a terminological knowledge field, and other, mainly about processes of neologisms formation in the language. The Communicative Theory of Terminology is the theoretical perspective that guided this work, considering the intention of describing the in vivo function of neological terms. The theoretical studies were based on several authors, as their fields of study: 1) Terminology: Wüster (1996, 1998), Cabré (1993, 1999, 2006), Sager (1990), Fedor de Diego (1995), Alves (1998, 1999), Aubert (2001), Krieger (2000, 2001) , Biderman (2001), Barros (2004) Remenche (2010); 2) Neology: Guilbert (1972, 1975), Boulanger (1990), Alves (1994, 1999, 2000, 2010a, 2010b) Cabré (1993), Barbosa (1981, 1998); linguistic analysis: Kocourek (1982), Sandmann (1989), Alves (1994), Biderman (1999), Neves (2000), Sardinha (2007), Lakoff and Johnson (2002), Ullmann (1964), electronic Houaiss dictionaries (2009 ) and Aulete online. For the understanding of the soybean specialty area, several authors were consulted: Borém (1999), Degrande and Vivan (2005), Nemoto (2005), Franchin (2011), Garcia et al. (2007), Gazziero et al. (2006), Gonçalves et al. (2007), Polizel (2007) Lima (2008), Gazziero, Voll and Adegas (2011), Hirakuri (2012), Martha Jr. and Contini (2012), among others. The hypotheses set out to achieve this study were confirmed: the constant investment in technologies for soybean production assumes that neologisms are created to name the innovations; the terminology of the various areas and, consequently, its neologisms, have peculiar morfolexical standards; if every field of knowledge has its own peculiarities, so the soybean presents its. Methodological procedures were adopted as the use of the program WordSmith Tools for the processing of fifty-seven texts, published by Embrapa Soja, of which were extracted all the terms, which were launched in forms. From this set, based on delete corpora, analysis corpus was obtained, consisting of one hundred and two neological terms. The survey of the terms revealed that the texts of the documentary corpus include terms that may be alluding to other cultures of the agricultural sector and other areas of knowledge. The neological terms obtained, all made of syntagmatic composition, were organized into thematic categories, observing that the possible mechanisms of formation of the terms are diversified, which may contain, from a substantival basis, elements as symbols, abbreviations, numbers, zoonyms, anthroponyms, toponyms, names of agricultural product, qualifying or classifying adjectives, nouns in adjectival function, adjectival phrases (prepositional phrases), and be marked by metaphors. This involves observing the numerous possibilities of expanding the lexical system, especially terminology.

Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Horticulture in the Faculty of Applied Sciences at the Cape Peninsula University of Technology 2013 / This study evaluated the effects of different pH levels and supplementary phosphorous concentrations on Salvia chamelaeagnea grown in hydroponics. The treatments consisted of 12 treatments of 4 differing nutrient solutions offering: low concentration of supplementary P (control), balanced concentration of supplementary P, moderate concentration of supplementary P and a high concentration of supplementary P at 3 differing pH levels. Each treatment was replicated 10 times. The objectives of this study were to asses the effect of supplementary phosphorous concentrations and 3 different pH levels on the growth, development and chlorophyll responses of Salvia chamelaeagnea grown hydroponically. Growth and development was recorded by measuring weekly heights, numbers of basal shoots, stem diameters and the number of branches, while root length and wet and dry weights of roots and shoots were measured post harvest. Chlorophyll responses were recorded by measuring weekly SPAD-502 measurements while post harvest DMSO analysis of chlorophyll A, B and total chlorophyll were recorded along with nutrient uptake levels of N, P,K, Ca, Mg, Na, Mn, Fe, Cu, Zn and B in the plant leaves. This study has shown that the use of a hydroponic nutrient system offering a moderate concentration of supplementary P at a pH level of 4 significantly influences the growth and development of Salvia chamelaeagnea grown in hydroponics. Plants treated with a pH level of 4 generally produced higher wet and dry shoot weights, root lengths, stem diameters, basal shoot numbers, branch numbers, and plant heights than that of the control and all treatments delivering nutrients at a pH level of 6 and 8. Although no one treatment offering supplementary P produced consistently high results, in most cases all the plants receiving supplementary P at a pH level of 4 outperformed the pH 6 and pH 8 treatments receiving the same amount of supplementary P. This indicates that at a pH level of 4 the mineral nutrient availability of a nutrient solution is at an adequate level for the growth and development of Salvia chamelaeagnea. Furthering studies into the effects of arbuscular mycorrhiza on the uptake of mineral nutrients, root morphology and growth and development are recommended.

Thesis (MTech (Horticultural Science))--Cape Peninsula University of Technology, 2016. / This aim of this study was to investigate the viability of growing P. tomentosum in deep water culture (DWC) hydroponics and to assess the effects of various methods of oxygenating the nutrient solution with regards to growth, development and chlorophyll responses. The experiment was conducted over a period of 74 days. In chapter 3, 16 different methods of oxygenation were applied to 9 replicates. The control had passive aeration. The treatments were made up of air-pumps, vortex oxygenators and the application of hydrogen peroxide (H2O2) at various frequency intervals; these were combined with each other and run as separate oxygenation methods.

Récemment, Agaricus subrufescens est devenu un champignon d’intérêt de par ses propriétés médicinales. Sa production commerciale s’est développée dans des pays tropicaux à partir de matériaux locaux. Cependant, les données disponibles dans la littérature ne concernent que des cultivars qui sont génétiquement similaires. Notre étude sur un ensemble de cultivars et de souches sauvages a conduit à une meilleure connaissance de la biologie de l’espèce. Contrairement aux cultivars, les souches sauvages présentent un haut niveau de polymorphisme génétique. Une variabilité phénotypique élevée a été mise en évidence pour l’accroissement mycélien, la productivité et la morphologie. Des analyses chimiques par RMN du solide et l’estimation des activités anti-oxydantes ont montré que les souches sauvages comme les cultivars sont une source à exploiter comme aliment fonctionnel pour prévenir les maladies cardio-vasculaire, les cancers et le diabète. L’adaptation des conditions culturales à partir du substrat utilisé pour la culture d’A. bisporus a permis d’obtenir des fructifications d’A. subrufescens, puis d’augmenter le rendement et d’optimiser des caractères agronomiques d’intérêt. Du matériel sauvage avec une activité antioxydante et un rendement élevés a été identifié. L’évaluation d’hybrides intercontinentaux a montré la possibilité de transférer des caractères d’intérêt à une descendance. Agaricus subrufescens pourrait être proposé aux champignonnistes français comme alternative à Agaricus bisporus pendant la saison estivale. / Agaricus subrufescens is becoming a mushroom of interest because of its medicinal properties. Commercial production had developed in tropical countries using local materials. However, data available in the literature referred to cultivars that are genetically similar. Our study of a set of cultivars and wild strains led to a better understanding of the biology of the species. Contrary to cultivars, wild strains exhibited a high level of genetic polymorphism. High phenotypic variability was identified in mycelial growth, productivity and morphology. Chemical analyses by solid-state 13C NMR and antioxidant activities showed that the wild strains as well as the cultivars proved a valuable source of functional food to prevent cardiovascular diseases, cancers and diabetes. Using cultivation substrate produced for A. bisporus and modifying cultivation conditions allowed fruiting of A. subrufescens, then increase in strain yield and optimization of agronomic traits of interest. Wild material with good antioxidant activity and high productivity was identified. The evaluation of intercontinental hybrids showed the possibility to transfer traits of interest to offspring. A. subrufescens could be proposed to French mushroom growers as an alternative to Agaricus bisporus during the summer season.

Submitted by Marilene Donadel (marilene.donadel@unioeste.br) on 2017-08-18T21:49:26Z No. of bitstreams: 1 Simone C Rodrigues 2016.pdf: 1227135 bytes, checksum: 39f934de9e9e731081567168e81f33ef (MD5) / Made available in DSpace on 2017-08-18T21:49:26Z (GMT). No. of bitstreams: 1 Simone C Rodrigues 2016.pdf: 1227135 bytes, checksum: 39f934de9e9e731081567168e81f33ef (MD5) Previous issue date: 2016-09-09 / For some years, the environment has been one of the main concerns of the global population. The need for alternative sources and ecologically friendly practices, as well as biofuels, is an option that fits sustainable development. In search for high oil content raw materials, microalgae have been considered as a useful and promising source of biodiesel. Thus, the paper aimed to evaluate the production of ethyl esters via in situ reaction of the biomass obtained in the cultivation Chlamydomonas reinhardtii microalgae, to determine the best cultivation medium based on productivity, to develop microalgae cultivation for biomass production, to determine lipid content, the in situ reaction for ethyl esters production characterize and quantify the obtained esters. From the results obtained with the extraction, it was observed that the characteristics of the solvents can promote the lipid extraction of the biomass. Chlamydomonas reinhardtii microalgae was cultivated in TAP medium, with controlled artificial light and temperature. Then, there was the recovery of the biomass, which analyzed for chlorophyll a and b proteins and total carbohydrates and finally, the lipid content in the biomass was obtained and quantified by analyzing the ethyl esters present by gas chromatography. The chlorophyll, protein and carbohydrate contents were: 54.136 mg / L -1, 29.39% and 14.92%, respectively, and the highest lipid content was 4.03%. The yield of the biomass culture was of 0.646 gL-1. From the results obtained with the extraction, it was observed that, the polarity of the solvent influences the productivity of lipids. In the production of esters the predominant in situ reaction is the temperature and reaction time, with the highest yields at 60ºC (1.504 mg of ester/g of biomass in 30, 1.518 mg of ester/g of biomass in 45 and 1.509 mg of ester/g of biomass in 60 minutes). In the production of esters, the factor analysis showed that there was interaction between temperature and time, on average, the best yields in number of C15 and C16 cetanes being C16 (76.97% at 30°C, 58.21% at 45°C, 64.05 % In 60°C and 56.79% in 75°C) profile of esters obtained, suitable for the production of biodiesel. The obtained results showed that the Chlamydomonas reinhardtii microalgae biomass presents potential for biodiesel production, when cultivated under the conditions tested in this study. / O meio ambiente há alguns anos vem sendo uma das principais preocupações da população mundial. A necessidade de fontes alternativas de energia e de práticas ecologicamente corretas, assim como os biocombustíveis, surgem como uma opção que se ajusta ao desenvolvimento sustentável. Na busca por matérias primas com alto teor de óleo, as microalgas têm sido consideradas como uma fonte útil e promissora de biodiesel. Desta forma, o trabalho teve como objetivo a avaliação da produção de ésteres etílicos via reação in situ da biomassa obtida no cultivo da microalga Chlamydomonas reinhardtii, determinar o melhor meio de cultivo baseado na produtividade, desenvolver o cultivo de microalga para a produção de biomassa, determinar o teor de lipídios, a reação in situ para a produção de ésteres etílicos caracterizar e quantificar os ésteres obtidos. A partir dos resultados obtidos com a extração, observou-se que as características dos solventes podem favorecer a extração lipídica da biomassa. A microalga Chlamydomonas reinhardtii foi cultivada em meio TAP, com luz artificial e temperatura contraladas. Após houve a recuperação da biomassa, esta foi analisada quanto ao teor de clorofila a e b proteínas e carboidratos totais e por fim, foi obtido e quantificado o teor lipídico presente na biomassa, analisando-se o perfil de ésteres etílicos presentes por cromatografia gasosa. O teor de clorofila, proteína e carboidratos encontrados foram: 54,136 mg./L-1, 29,39% e 14,92%, respectivamente, e o maior teor de lipídeo foi de 4,03% o rendimento do cultivo de biomassa foi de 0,646 g.L-1. A partir dos resultados obtidos com a extração, observou-se que, a polaridade do solvente influencia na produtividade de lipídios. Na produção de ésteres o que predomina na reação in situ é a temperatura e o tempo de reação, apresentando maiores rendimentos a temperatura de 60ºC (1,504 mg de éster/g de biomassa em 30, 1,518 mg de éster/g de biomassa em 45 minutos e 1,509 mg de éster/g de biomassa em 60 minutos). Na produção de ésteres, a análise fatorial revelou que houve interação entre temperatura e tempo, em média, os melhores rendimentos em número de cetanos C15 e C16 sendo C16 (76,97% em 30ºC, 58,21% em 45Cº, 64,05% em 60Cº e 56,79% em 75CºC) perfil de ésteres obtidos, propícios para a produção de biodiesel. Os resultados obtidos demonstram que a biomassa microalga Chlamydomonas reinhardtii apresenta potencial para produção de biodiesel, quando cultivada nas condições testadas neste estudo.

As the global population grows, water and food demand also increase. The intensive aquaculture industry has helped to mitigate these problems. In order to make aquaculture sustainable, it is necessary to remove the abundant nutrients produced by fish in the water. In this study, the role of the microalga of Chlorella vulgaris in the Isolated Cultivation of Algal Resources Utilizing Selectivity (ICARUS) membrane photobioreactor was evaluated for nutrient control in the aquaculture system. The production of algal biomass, the removal rate of nutrients, and the impact of microalgae on cultured organisms were monitored during the operation of aquaculture systems. At the end of the experiment, the yield of algae in ICARUS was approximately 344 ± 11.3 mg / L. Compared to the control groups, this production of algae is considered to be low. Likely factors were insufficient indoor light intensity, membrane fouling limiting the mass transfer of nutrients, and improvements still needed for the overall ICARUS prototype design. However, ICARUS can efficiently prevent algae from contamination, and provide pure harvest production for food supplement. It was observed that algae have the ability to help stabilize pH and increase dissolved oxygen for the system. However, in high-density, mixed systems, algae may cause physical damage to fish (e.g., clogging of gills). The high ammonia concentrations produced by fish could be controlled by Chlorella vulgaris since this species of algae prefers ammonia to nitrate. In conjunction with algal growth, aquaculture systems concentration of ammonia was maintained at 0.90±0.16 mg/L. The integration of ICARUS is not only a potentially sustainable option for aquaculture, but also a multipurpose tool for other types of wastewater treatment. An economic analysis for scale-up of the ICARUS system was performed. In summary, this study aimed to develop a new commercial ICARUS photobioreactor which can serve for different types of wastewater systems with a high algal production efficiency and economic benefits.

Soil carbon (C) is important because even small changes in soil C can affect atmospheric concentrations of CO₂, which in turn can influence global climate. Adequate soil carbon is also required to maintain soil quality, which is important to if agricultural production is to be sustained. The soil carbon balance of New Zealand's pastoral soils is poorly understood, with recent research showing that soils under dairy pasture have lost large amounts of C during the past few decades. The main objective of this research was to determine an annual farm scale C budget for an intensively grazed dairy farm, with a second objective being to determine the amount of CO₂-C lost following cultivation for pasture renewal, and soil pugging by dairy cattle. A third objective was to investigate the environmental controls of CO₂ exchange in a dairy farm pasture system. Net ecosystem exchange (NEE) of CO₂ was measured using an eddy covariance (EC) system from 15 December 2007 to 14 December 2008. Closed chamber techniques were used to measure CO₂ emissions from three cultivated paddocks and three adjacent pasture paddocks between 26 January 2008 and 5 March 2008. CO₂ emissions were also measured using chambers from pugged and control plots between 25 June and 5 August. Coincidentally this research was carried out in a year with a severe summer/autumn drought and a wetter than usual winter. Annual NEE measured with the eddy covariance system was -1,843 kg C ha⁻¹ (a C gain by the land surface). Accounting for C in supplement import, milk export, pasture export and losses in methane, the dairy pasture system was a net sink of -880±500 kg C ha⁻¹. This C sequestration occurred despite severe drought during the study, which was in contrast to other studies of grasslands during drought. Cultivation under dry conditions did not increase cumulative CO₂-C emissions compared to adjacent pasture paddocks. However, when C inputs to pasture paddocks via photosynthesis were included in calculations, net C loss from the cultivated paddocks (during the 39 day study) was estimated to be 622 kg C ha⁻¹ more than the pasture paddocks. CO₂ emissions were lower from pugged plots compared to control plots, probably caused by decreased microbial and root respiration due to wetter soil conditions, and lowered root respiration as a result of lower pasture production. Volumetric soil moisture content (soil moisture) had a dominant effect on CO₂ exchange at a range of temporal scales. Respiration and photosynthesis were both reduced when soil moisture was below 43% (~the lower limit of readily available water) and photosynthesis virtually ceased when soil moisture declined below 24% (~wilting point). Soil moisture also influenced the relationship between temperature and respiration and photosynthetic flux density (PPFD) and NEE. These results suggest that management related soil disturbances of occasional cultivation for pasture renewal and soil pugging, are unlikely to cause large losses of soil C. Further, a severe drought also did not cause CO₂-C losses from the land surface to the atmosphere on an annual scale, in contrast to previous studies.

清代對蒙地的封禁政策受到漢地人口過多，及列強壓境所造成的政經危機影響，大致可分為三期：禁墾時期─1634-1857年；限墾時期；1902-1911；放墾時期─1902-1911年。限墾、放墾時期（1858-1911）是本文所寫的時間斷限。人與土地是整個移墾行為的重要指標，本論文的旨趣在探討此二者相互運作的產生的種種問題如：漢人為什麼移墾內蒙古？內蒙古社會的動亂局面與漢人的移墾關係如何？土地所有權的取得在蒙古遊牧社會中代表什麼意義？清廷在蒙地採行州縣區劃，對蒙古族將造成什麼影響？全文分六章十一節。