Con questa ricerca si sono volute ripercorrere le diverse fasi storiche e le motivazioni che, nel corso del Novecento, hanno portato la razza bovina Frisona Italiana, conosciuta per la sua alta produttività lattifera, ad affermarsi come la più allevata sul territorio della Penisola. Al di là di una ricostruzione fattuale si sono volute comprendere le strategie dell’innovazione tecnologica in campo zootecnico negli ultimi decenni. Il lavoro prende avvio dall’emergere tra Sei e Ottocento in Gran Bretagna, nei Paesi Bassi e negli Stati Uniti di una speciale attenzione alla riproduzione animale. Viene poi analizzata l’introduzione in Italia di capi Friesian olandesi a partire dalla fine dell’800 e di quelli Holstein-Friesian nordamericani nel periodo tra le due Guerre Mondiali. Infine viene ricostruita l’opera di miglioramento della popolazione in esame, arrivando a una nuova sottorazza, col tempo divenuta oggetto anche di esportazione. Nel lavoro viene analizzato infine il ruolo delle istituzioni e dell’associazionismo, amplificatosi dopo la seconda guerra mondiale, tramite la ricostruzione dei rapporti dialettici tra queste istituzioni collettive da un lato e gli ispettorati agrari e il MAF dall’altro, in ordine alla gestione dei libri genealogici e alla definizione degli indirizzi zootecnici. / With this research we wanted to reconstruct the different historical phases and the reasons that, during the XX century, led the Italian Friesian breed of cow, known for its high milk productivity, to become the most widespread breed on the Peninsula. Besides a reconstruction of the facts, we wanted to understand the strategies for the technological innovation in the field of zootechnics during the last ten years. The work starts with the emergence, between the XVII and the XIX century in Great Britain, in the Low Countries and in the United States of a special attention for animal reproduction. Then, we examined the introduction in Italy of Dutch Friesian heads, from the end of the XIX century, and of North-American Holstein-Friesian, in the period between the two world wars. Finally, we reconstructed the process of improvement of the population here analysed, which led to a new sub-breed, later exported. Finally, we analysed the role of institutions and associations, increased after the Second World War, by reconstructing the relations between them.

The risk of carbon emissions from permafrost is linked to an increase in ground temperature and thus in particular to thermal insulation by vegetation, soil layers and snow cover. Ground insulation can be influenced by the presence of large herbivores browsing for food in both winter and summer. In this study, we examine the potential impact of large herbivore presence on the soil carbon storage in a thermokarst landscape in northeastern Siberia. Our aim in this pilot study is to conduct a first analysis on whether intensive large herbivore grazing may slow or even reverse permafrost thaw by affecting thermal insulation through modifying ground cover properties. As permafrost soil temperatures are important for organic matter decomposition, we hypothesize that herbivory disturbances lead to differences in ground-stored carbon. Therefore, we analyzed five sites with a total of three different herbivore grazing intensities on two landscape forms (drained thermokarst basin, Yedoma upland) in Pleistocene Park near Chersky. We measured maximum thaw depth, total organic carbon content, δ13C isotopes, carbon-nitrogen ratios, and sediment grain-size composition as well as ice and water content for each site. We found the thaw depth to be shallower and carbon storage to be higher in intensively grazed areas compared to extensively and non-grazed sites in the same thermokarst basin. First data show that intensive grazing leads to a more stable thermal ground regime and thus to increased carbon storage in the thermokarst deposits and active layer. However, the high carbon content found within the upper 20 cm on intensively grazed sites could also indicate higher carbon input rather than reduced decomposition, which requires further studies including investigations of the hydrology and general ground conditions existing prior to grazing introduction. We explain our findings by intensive animal trampling in winter and vegetation changes, which overcompensate summer ground warming. We conclude that grazing intensity—along with soil substrate and hydrologic conditions—might have a measurable influence on the carbon storage in permafrost soils. Hence the grazing effect should be further investigated for its potential as an actively manageable instrument to reduce net carbon emission from permafrost.

In Senegal, in recent years the rural sector has undergone major reforms which are partly due to macroeconomic policy reforms adopted by the Senegalese government. Therefore, all the actors of economic and social development have a common concern and share in promoting rural agriculture (Bernard et al., 2008). Changes observed in the agricultural and rural sector reflect the will of the actors to have a productive, competitive, and sustainable agriculture system in order to ensure food security (International Monetary Fund, 2011). The purpose of the study is to develop a set of recommendations to improve the educational program planning and teaching skills of educators in the extension system by focusing on extension educators' approaches to teaching farmers and cart owners animal welfare practices for proper care of working animals. The extension agents and teachers involved in the animal husbandry and animal extension system in Thies and Bambey served as participants in this study. This descriptive qualitative study connected qualitative data derived from participant interviews, qualitative document analysis, observations of an educational program planning professional development program for state agents and university faculty members in Diourbel and Thies regions, as well as a final focus group to allow participants clarification of preliminary themes found in the data. The findings revealed 11 themes: characteristics of the participants, job expectation and responsibilities, institutional and organizational factors, capacity building and professional development plans, diagnostics of the extension system, regulations and legislations, limited sources of information, limited knowledge and skills technologies, recommendations for utilizing student-centered teaching practices, standard welfare for animal husbandry, recommendation for acceptance and improvement standard animal welfare related to the four research questions which addressed the topics of challenging current teaching methods used in the extension system for other owners of animal species in the animal extension programs, the use of student-centered teaching practices in extension education and university instruction, and the level assistance given to farmers in order to ensure accepted standards of animal welfare working animal and other animal species in the animal husbandry system. / Master of Science in Life Sciences / In Senegal, in recent years the rural sector has undergone major reforms which are partly due to macroeconomic policy reforms adopted by the Senegalese government. Therefore, all the actors of economic and social development have a common concern and share in promoting rural agriculture (Bernard et al., 2008). Changes observed in the agricultural and rural sector reflect the will of the actors to have a productive, competitive, and sustainable agriculture system in order to ensure food security (International Monetary Fund, 2011). The purpose of the study is to develop a set of recommendations to improve the educational program planning and teaching skills of educators in the extension system by focusing on extension educators' approaches to teaching farmers and cart owners animal welfare practices for proper care of working animals. The extension agents and teachers involved in the animal husbandry and animal extension system in Thies and Bambey served as participants in this study. The methodology used for this descriptive qualitative study were interviews, qualitative document analysis, observations of an educational and professional development program planning for state agents and university faculty members in Diourbel and Thies regions, as well as a final focus group to allow participants clarification of preliminary themes found in the data. The data collected from participants were connected to the different used qualitative methods to gather data. The 11 themes found in this study were the characteristics of the participants, job expectation and responsibilities, institutional and organizational factors, capacity building and professional development plans, diagnostics of the extension system, regulations and legislations, limited sources of information, limited knowledge and skills technologies, recommendations for utilizing student-centered teaching practices, standard welfare for animal husbandry, recommendation for acceptance and improvement standard animal welfare related to the four research questions which addressed the topics of challenging current teaching methods used in the extension system for other owners of animal species in the animal extension programs, the use of student-centered teaching practices in extension education and university instruction, and the level assistance given to farmers in order to ensure accepted standards of animal welfare working animal and other animal species in the animal husbandry system.

No / Gas chromatography (GC), GC-mass spectrometry (GC-MS) and GC-combustion-isotope ratio MS (GC-C-IRMS) analyses of absorbed and surface lipid residues preserved in potsherds were used to explore the extent of pig product processing exploitation in the later British Neolithic Grooved Ware tradition. Assessments were made regarding whether porcine lipids were associated with specific Grooved Ware traits, i.e. decoration, substyle, geographical area and type of site. Two hundred and twenty-two Grooved Ware potsherds were analysed, 70% of which contained lipid concentrations considered significant (>5 μg g−1). All the lipid residues were dominated by animal fats, although plant and beeswax were also detected in a small number of extracts. δ13C values of the major fatty acid components of degraded animal fats (C16:0 and C18:0) were determined for 126 extracts and used to assign ruminant or porcine origins to the residues; 16% of these were found to have a predominantly porcine isotope signature. Statistical associations with pig exploitation were shown to exist with substyle, geographical area and site type, whereas, no relationship was seen between decoration and the type of commodity processed. Intact triacylglycerols were preserved in 19% of the sherds; half of these had distributions consistent with the identifications based on δ13C values, the remainder differed either due to the presence of mixed commodities or because lower molecular weight homologues had been lost due to degradation. In addition to the detection of pig exploitation, results from lipid residue analysis showed a good correlation with faunal assemblages, suggesting that stable isotope analysis may be used as a proxy for animal exploitation at sites where bones have not survived.

Atualmente, as atividades do agronegócio necessitam, como todas as demais áreas, de soluções inovadoras que potencializem as mais diferentes demandas do negócio; a agricultura de precisão é um caminho que vem se mostrando eficiente na tomada de decisão. Nos dias atuais, a aplicação do veículo aéreo não tripulado- VANT ou também conhecido como aeronave remotamente pilotada- ARP vem se mostrando uma crescente ferramenta de inserção dentro deste contexto e aplicação. A tomada de decisão do agricultor, seja ele de pequeno, médio ou grande porte, pode ser auxiliada com o uso de equipamentos e softwares que vêm se tornando uma prática usual tanto nas atividades da agricultura como em outras tantas, isso devido a sua fácil aplicação, baixo custo e grande possibilidade de aplicações nas diferentes atividades do agronegócio. Os veículos de asas rotativas são, nesse contexto de uso, atrelados a aplicativos específicos, uma solução eficaz na gestão de diferentes culturas e atividades no agronegócio. Os resultados observados com os voos realizados, com as coletas de imagens, bem como o mapeamento de culturas e propriedades rurais se mostraram satisfatórios ao longo da pesquisa, tanto na forma de controle de voo manual quanto no modo autônomo de coleta de dados. Outro fator que possibilitou a pesquisa foi o uso de aplicativos de imagem e rota de voo, possibilitando cumprir os diferentes objetivos propostos na pesquisa. / Currently, the agribusiness activities require, as all other areas, innovative solutions that empower the most different demands of business; the precision agriculture is a path that has been showing efficient decision-making. Nowadays, the application of unmanned aerial vehicle UAV - or also known as aircraft remotely piloted - ARP has been showing a growing insertion tool within this context and application. The farmer\'s decision making, be he small, medium or large, can be aided with the use of equipment and software that has become an usual practice both in the activities of agriculture as in others, that due to its easy application, low cost and great possibility of applications in the different activities of the agribusiness. Rotary wing vehicles are, in this context of use, tied to specific applications, an effective solution in different management cultures and activities in agribusiness. The results observed with the flights taken, with collections of images, as well as the mapping of cultures and rural properties have proven satisfactory throughout the research, both in the form of manual flight control mode of collection of data, another factor that enabled the research was the use of imaging applications and flight path, in this way, it was possible to accomplish the different objectives proposed in the research.

Atualmente, as atividades do agronegócio necessitam, como todas as demais áreas, de soluções inovadoras que potencializem as mais diferentes demandas do negócio; a agricultura de precisão é um caminho que vem se mostrando eficiente na tomada de decisão. Nos dias atuais, a aplicação do veículo aéreo não tripulado- VANT ou também conhecido como aeronave remotamente pilotada- ARP vem se mostrando uma crescente ferramenta de inserção dentro deste contexto e aplicação. A tomada de decisão do agricultor, seja ele de pequeno, médio ou grande porte, pode ser auxiliada com o uso de equipamentos e softwares que vêm se tornando uma prática usual tanto nas atividades da agricultura como em outras tantas, isso devido a sua fácil aplicação, baixo custo e grande possibilidade de aplicações nas diferentes atividades do agronegócio. Os veículos de asas rotativas são, nesse contexto de uso, atrelados a aplicativos específicos, uma solução eficaz na gestão de diferentes culturas e atividades no agronegócio. Os resultados observados com os voos realizados, com as coletas de imagens, bem como o mapeamento de culturas e propriedades rurais se mostraram satisfatórios ao longo da pesquisa, tanto na forma de controle de voo manual quanto no modo autônomo de coleta de dados. Outro fator que possibilitou a pesquisa foi o uso de aplicativos de imagem e rota de voo, possibilitando cumprir os diferentes objetivos propostos na pesquisa. / Currently, the agribusiness activities require, as all other areas, innovative solutions that empower the most different demands of business; the precision agriculture is a path that has been showing efficient decision-making. Nowadays, the application of unmanned aerial vehicle UAV - or also known as aircraft remotely piloted - ARP has been showing a growing insertion tool within this context and application. The farmer\'s decision making, be he small, medium or large, can be aided with the use of equipment and software that has become an usual practice both in the activities of agriculture as in others, that due to its easy application, low cost and great possibility of applications in the different activities of the agribusiness. Rotary wing vehicles are, in this context of use, tied to specific applications, an effective solution in different management cultures and activities in agribusiness. The results observed with the flights taken, with collections of images, as well as the mapping of cultures and rural properties have proven satisfactory throughout the research, both in the form of manual flight control mode of collection of data, another factor that enabled the research was the use of imaging applications and flight path, in this way, it was possible to accomplish the different objectives proposed in the research.

<p>The aim of this study is to find out if the former students think that they have made use of the courses they have taken at the Natural Resource Use Programme specialised in Animal Husbandry at Lillerudsgymnasiet or if the courses should be exchanged. In the study it is assumed that a course can be useful professionally, for further studies and in private life.</p><p>The main questions are: Have the former students made use of the courses they took at the Natural Resource Use Programme specialised in Animal Husbandry at Lillerudsgymnasiet? Was it the right decision to replace the course Horses?</p><p>I have sent a questionnaire to all the students who graduated between 2003 and 2007. Out of 107 questionnaires I received 66 replies (62 %). All students have studied the same mandatory courses but different eligible courses. Therefore the frequency of replies shows great variation.</p><p>The course Horses was recently replaced by the courses Small Enterprises A, Dogs and Species at risk. 52 % (34 persons) answered that they found the course Horses useful. 46 % (16 persons) answered that they found the course Small Enterprises A useful. 78 % (32 persons) answered that they found the course Dogs useful. 37 % (10 persons) answered that they found the course Species at risk useful.</p><p>It is hard to say if it was right to replace Horses if you look only at the answers to how useful the course was. My conclusion is that the teachers should look at Species at risk and try to make it suit the specialisation Animal Husbandry better. English B is the course that the highest share of former students found useful, 82 % (18 persons). Nevertheless I think it should stay with the eligible courses. The former students think that they have made use of the mandatory courses.</p> / <p>Syftet med det här arbetet är att få reda på om de tidigare eleverna tycker att det varit nyttiga kurser som de läst på naturbruksprogrammets djurvårdsinriktning på Lillerudsgymnasiet och om det är någon eller några kurser som skulle kunna bytas ut. Jag tänker mig att en kurs kan vara nyttig både i kommande arbete, i fortsatta studier och i privatlivet.</p><p>De huvudsakliga frågeställningarna är: Har de före detta eleverna haft nytta av kurserna som de läste på Lillerudsgymnasiets naturbruksprogram med djurvårdsinriktning? Var det riktigt att ta bort hästkunskapskursen som inriktningskurs?</p><p>Jag har skickat ut en enkät till alla elever som gick ut naturbruksprogrammet med djurvårdsinriktning på Lillerudsgymnasiet mellan 2003 och 2007 och det blev 107 stycken. Svarsfrekvensen blev 62 % (66 st.). Alla elever har läst samma inriktningskurser men de har läst olika kurser av de individuellt valbara. Svarsfrekvensen är därför mycket olika för olika kurser.</p><p>Kursen Hästkunskap blev nyligen utbytt mot Småföretagande A, Hundar och Utrotningshotade arter. 52 % (34 st.) svarade att de har haft nytta av kursen Hästkunskap. 46 % (16 st.) svarade att de har haft nytta av kursen Småföretagande A. 78 % (32 st.) svarade att de har haft nytta av kursen Hundar. 37 % (10 st.) svarade att de har haft nytta av kursen Utrotningshotade arter.</p><p>Det är svårt att säga om det var rätt att ta bort Hästkunskapskursen som inriktningskurs enbart utifrån nyttan. Jag anser att man bör se över om Utrotningshotade arter kan göras om för att passa djurvårdsinriktningen bättre. Engelska B är den kurs som störst andel i den här studien tycker att de har haft nytta av, 82 %, (18 st.). Jag tycker ändå att den ska vara kvar bland de valbara kurserna. De tidigare eleverna tycker att de har haft nytta av sina inriktningskurser.</p>

The aim of this study is to find out if the former students think that they have made use of the courses they have taken at the Natural Resource Use Programme specialised in Animal Husbandry at Lillerudsgymnasiet or if the courses should be exchanged. In the study it is assumed that a course can be useful professionally, for further studies and in private life. The main questions are: Have the former students made use of the courses they took at the Natural Resource Use Programme specialised in Animal Husbandry at Lillerudsgymnasiet? Was it the right decision to replace the course Horses? I have sent a questionnaire to all the students who graduated between 2003 and 2007. Out of 107 questionnaires I received 66 replies (62 %). All students have studied the same mandatory courses but different eligible courses. Therefore the frequency of replies shows great variation. The course Horses was recently replaced by the courses Small Enterprises A, Dogs and Species at risk. 52 % (34 persons) answered that they found the course Horses useful. 46 % (16 persons) answered that they found the course Small Enterprises A useful. 78 % (32 persons) answered that they found the course Dogs useful. 37 % (10 persons) answered that they found the course Species at risk useful. It is hard to say if it was right to replace Horses if you look only at the answers to how useful the course was. My conclusion is that the teachers should look at Species at risk and try to make it suit the specialisation Animal Husbandry better. English B is the course that the highest share of former students found useful, 82 % (18 persons). Nevertheless I think it should stay with the eligible courses. The former students think that they have made use of the mandatory courses. / Syftet med det här arbetet är att få reda på om de tidigare eleverna tycker att det varit nyttiga kurser som de läst på naturbruksprogrammets djurvårdsinriktning på Lillerudsgymnasiet och om det är någon eller några kurser som skulle kunna bytas ut. Jag tänker mig att en kurs kan vara nyttig både i kommande arbete, i fortsatta studier och i privatlivet. De huvudsakliga frågeställningarna är: Har de före detta eleverna haft nytta av kurserna som de läste på Lillerudsgymnasiets naturbruksprogram med djurvårdsinriktning? Var det riktigt att ta bort hästkunskapskursen som inriktningskurs? Jag har skickat ut en enkät till alla elever som gick ut naturbruksprogrammet med djurvårdsinriktning på Lillerudsgymnasiet mellan 2003 och 2007 och det blev 107 stycken. Svarsfrekvensen blev 62 % (66 st.). Alla elever har läst samma inriktningskurser men de har läst olika kurser av de individuellt valbara. Svarsfrekvensen är därför mycket olika för olika kurser. Kursen Hästkunskap blev nyligen utbytt mot Småföretagande A, Hundar och Utrotningshotade arter. 52 % (34 st.) svarade att de har haft nytta av kursen Hästkunskap. 46 % (16 st.) svarade att de har haft nytta av kursen Småföretagande A. 78 % (32 st.) svarade att de har haft nytta av kursen Hundar. 37 % (10 st.) svarade att de har haft nytta av kursen Utrotningshotade arter. Det är svårt att säga om det var rätt att ta bort Hästkunskapskursen som inriktningskurs enbart utifrån nyttan. Jag anser att man bör se över om Utrotningshotade arter kan göras om för att passa djurvårdsinriktningen bättre. Engelska B är den kurs som störst andel i den här studien tycker att de har haft nytta av, 82 %, (18 st.). Jag tycker ändå att den ska vara kvar bland de valbara kurserna. De tidigare eleverna tycker att de har haft nytta av sina inriktningskurser.

En aquest estudi s'analitza l'evolució del sector vitícola de Menorca durant els segles XVIII, XIX i XX confrontant-lo amb la del sector ramader. En el segle XVIII es constata un avanç de la producció vinícola, gràcies a l'estímul de l'augment de la població. No obstant això, aquesta disminueix a partir de 1830, quan l'economia insular sofreix una severa depressió. L'excedent vinícola generat ocasiona una forta caiguda dels preus. Així, quan el oídium assoli la illa a partir de 1852, s'experimentarà una arrencada massiva de vinyes. Paral·lelament augmenta el pes de la ramaderia bovina, amb una importància creixent de la producció formatgera, i que, quan a la dècada de 1960 desaparegui el cultiu del blat, es convertirà en l'únic sector agrari de la illa. Tanmateix, i malgrat l'augment dels rendiments esdevingut a partir de 1950, la ramaderia presentarà una capacitat de generació de renda decreixent. / En este estudio se analiza la evolución del sector vitícola de Menorca durante los siglos XVIII, XIX y XX confrontándolo con la del sector ganadero. En el siglo XVIII se constata un avance de la producción vinícola, gracias al estímulo del aumento de la población. Sin embargo, ésta disminuye a partir de 1830, cuando la economía insular sufre una severa depresión. El excedente vinícola generado ocasiona una fuerte caída de los precios. Así, cuando el oídium azote la isla a partir de 1852, se experimentará un arranque masivo de viñedo.Paralelamente aumenta el peso de la ganadería bovina, con una importancia creciente de la producción quesera, y que, cuando en la década de 1960 desaparezca el cultivo del trigo, se convertirá en el único sector agrario de la isla, pero que, pese al aumento de los rendimientos acaecido a partir de 1950, presentará una capacidad de generación de renta decreciente. / This study examines the evolution of the vineyard in Minorca during the XVIII, XIX and XX centuries, and compares it with that of the livestock sector. In the eighteenth century there is a breakthrough in wine production, thanks to the stimulus of increased population. However, it decreases from 1830, when the island economy suffers a severe depression. The wine surplus generated causes a sharp drop in prices. Thus, when the oidium plagued the island from 1852, it will experience a massive boot vineyard. In parallel, the weight of cattle increases, with a growing importance of cheese production, and which, when in the 1960's the crop of wheat disappear, it will become the only agricultural sector of the island. However, and despite the rise in yields occurred after 1950, it will present a declining capacity of income generation.

To differentiate between bones from sheep (Ovis aries) and bones from of goats (Capra hircus) is a long lasting challenge for zoologists, archaeozoologists and osteologists. Especially considering archaeological remains which are often found fractured and poorly preserved due to taphonomic processes. Zeder &amp; Pilaar’s (2010) and Zeder &amp; Lapham’s (2010) methods of species differentiation has shown promising results when used on bones from modern sheeps and goats. This paper aims to evaluate these methods by exerting them on excavated bones from kv. Apoteket 4-5, a late Viking Age and early Medieval quarter in central Visby. The results have shown that Zeder &amp; Pilaar’s (2010) methods of identifying sheeps and goats with the mandibular teeths and mandibles are unreliable due to disturbances from wear, fragmentation and weak criterias. Results from Zeder &amp; Laphams (2010) methods for post cranial bones shows mixed results considering a pilot study with the implementation of ancient DNA, which was executed att Gotland University during summer and fall 2011. More extensive studies in the future with the implementation of archaeogenetics are planned which can be used to further develop these methods and thus increase the reliabiltiy of the results.In this study 5,3kg of bones were osteologically species identified and analyzed. The results were used to recreate the use of sheep and goats including butchery techniques, animal husbandry and livestock health status with focus on the sheeps and goats in an early Medieval town quarter in Visby. / Att skilja mellan ben från får och ben från get har länge varit en utmaning för zoologer, arkeozoologer och osteologer. Särskilt när ett arkeologiskt benmaterial undersöks eftersom materialet ofta är fragmenterat och sämre bevarat. Zeder &amp; Pilaar (2010) och Zeder &amp; Laphams (2010) metoder för att skilja mellan får och get har uppvisat lovande resultat när ben från moderna får och getter har undersökts. Syftet med denna kandidatuppsats är att utvärdera dessa metoder genom att tillämpa dem på ett arkeologiskt material från kv. Apoteket 4-5 i Visby.Resultatet från analysen visar att Zeder och Pilaars metod för underkäkar och underkäkständer är otillförlitlig på grund av förekomst av slitage, fragmentering och svaga kriterier. Resultatet från Zeder och Laphams metod för postkraniala benslag visar en mer blandad tillförlitlighet om man ser till de jämförelser som har gjorts mot en studie av förhistoriskt DNA som genomfördes på Högskolan på Gotland under 2011 på material från kv. Apoteket 4-5. En mer omfattande studie vilket inkluderar en arkeogenetisk undersökning är planerad i framtiden. Resultatet från studierna ska användas för att utveckla metoderna och på så sätt öka metodernas tillförlitlighet.I undersökningen som ligger till grund för denna kandidatuppsats har 5,3 kg benmaterial från kv. Apoteket 4-5 identifierats och analyserats osteologiskt. Resultatet användes för att återskapa användningen av får och getter och på så sätt erhålla information om slaktteknik, djurhållning och djurens hälsa i ett stadskvarter i Visby under sen vikingatid och tidig medeltid.