As suspensões de estearato de eritromicina, de procedência nacional, apresentam a inconveniência que reside na elevada viscosidade ou flutuação do fármaco disperso. Foram estudados diferentes adjuvantes farmacotécnicos, a fim de verificar fatores interferentes que poderiam melhorar a estabilidade da suspensão de estearato de eritromicina. Como agentes suspensores foram utilizados BoniasolR2600 (carboximetilcelulose sódica), veegumR HV (silicato de alumínio e magnésio) e ViscosolR RV (glicolato de amido sódico) e como edulcorantes a glicerina, sorbitol a 70% e sacarose. As determinações analíticas para avaliar a estabilidade das suspensões foram: pH, densidade, viscosidade, aspecto da suspensão, volume do fármaco disperso, características de ressuspensão e doseamento do antibiótico. As suspensões contendo BoniasolR 260 e glicerina ou sorbitol não apresentaram o fenômeno da flutuação. As preparações contendo VeegumRRV e glicerina ou sorbitol na concentração de 30% (p/v) apresentaram estabilidade adequada. / Suspensions of erithromycin stearate of national origin present the inconvenience of the high viscosity or of the flotation of the dispersed drug. Different pharmaceutical helpers were studied in order to verify of the erythromycin stearate suspension. BoniasolR2600 (sodium carboxymethyl cellulose), VeegumR HV (aluminum magnesium silicate) and ViscosolR RV (sodium starch glycollate) were used as suspending agents and glycerin, sorbitol at 70% and sucrose were used as sweeteners. Analytic determination to evaluate the suspensions stability were: pH, density, viscosity, aspecto of suspension, volume of the dispersed drug, resuspension characteristics and determination of the antibiotic dose. Suspensions containing BoniasolR 2600 and glycerin or sorbitol didn\'t present floatation. Preparation with veegumR HV and glycerin or sorbitol in a concentration of 30% (p/v) presented adequate stability.

As suspensões de estearato de eritromicina, de procedência nacional, apresentam a inconveniência que reside na elevada viscosidade ou flutuação do fármaco disperso. Foram estudados diferentes adjuvantes farmacotécnicos, a fim de verificar fatores interferentes que poderiam melhorar a estabilidade da suspensão de estearato de eritromicina. Como agentes suspensores foram utilizados BoniasolR2600 (carboximetilcelulose sódica), veegumR HV (silicato de alumínio e magnésio) e ViscosolR RV (glicolato de amido sódico) e como edulcorantes a glicerina, sorbitol a 70% e sacarose. As determinações analíticas para avaliar a estabilidade das suspensões foram: pH, densidade, viscosidade, aspecto da suspensão, volume do fármaco disperso, características de ressuspensão e doseamento do antibiótico. As suspensões contendo BoniasolR 260 e glicerina ou sorbitol não apresentaram o fenômeno da flutuação. As preparações contendo VeegumRRV e glicerina ou sorbitol na concentração de 30% (p/v) apresentaram estabilidade adequada. / Suspensions of erithromycin stearate of national origin present the inconvenience of the high viscosity or of the flotation of the dispersed drug. Different pharmaceutical helpers were studied in order to verify of the erythromycin stearate suspension. BoniasolR2600 (sodium carboxymethyl cellulose), VeegumR HV (aluminum magnesium silicate) and ViscosolR RV (sodium starch glycollate) were used as suspending agents and glycerin, sorbitol at 70% and sucrose were used as sweeteners. Analytic determination to evaluate the suspensions stability were: pH, density, viscosity, aspecto of suspension, volume of the dispersed drug, resuspension characteristics and determination of the antibiotic dose. Suspensions containing BoniasolR 2600 and glycerin or sorbitol didn\'t present floatation. Preparation with veegumR HV and glycerin or sorbitol in a concentration of 30% (p/v) presented adequate stability.

Os paradigmas da criação artística para a CAVE (CAVE Automatic Virtual Environment) ainda estão sendo elaborados pois, no âmbito da Realidade Virtual, é uma tecnologia recente e ainda bastante onerosa, fatores que dificultam sua disseminação. Ainda assim, algumas instituições possuem CAVEs para pesquisas artístico-culturais. Dentre elas, figura o centro de pesquisas Ars Electronica que, em parceria com o artista transmídia Maurice Benayoun, produziu em sua CAVE, cuja visitação é aberta ao público, a premiada obra World Skin. Com o intuito de situar o atual estado da arte das experimentações artísticas em CAVEs, esta obra mereceu análise detalhada de seus processos criativos e metodológicos. Nela, o autor investiga as reações cognitivas dos visitantes e propõe uma nova relação espaçocorporal dentro de um mundo virtual. A potencialidade artística da CAVE é grande e existe interesse dos artistas em explorá-la. As novas pesquisas e avanços tecnológicos apontam perspectivas de um maior acesso a este tipo de ambiente imersivo, consolidando-o como um prolífero suporte artístico. / The paradigms behind artistic creation for CAVE (CAVE Automatic Virtual Environment) are yet to be elaborate, since in the realm of Virtual Reality, this is a recent and expensive technology, which poses barriers to its own spreading. Even so, some institutions do have CAVEs for culture and artistic research. Among them, there\'s the research center Ars Electronica, which, in partnership with transmedia artist Maurice Benayoun, has produced in its CAVE (which is open for public visits), the award-winning work World Skin. With the objective of placing experimental artistic manifestations in CAVEs, this work has been deeply analyzed, concerning its creative processes and methods. The author evaluates the cognitive reactions of the visitors and proposes a new corporal-space relationship in a virtual world. The artistic potential behind a CAVE seems to be huge, and artists are willing to explore it. According to new researches and recent developed technologies, there will be a broader access to this kind of immersive environment, which might become a highly productive platform for artists.

I kölvattnet av Nollvisionen uppstår problem för oskyddade trafikanter. Vid mittseparering av 13-metersvägar blir utrymmet för dessa trafikantgrupper otillräckligt och nya lösningar måste till. Detta examensarbete syftar till att förbättra framkomligheten och trafiksäkerheten för oskyddade trafikanter på s k MLV (Mötesseparerad LandsVäg). Målet med examensarbetet har varit att inventera problem, identifiera förbättringsområden, finna bra lösningar samt att beräkna vilka kostnader som dessa lösningar orsakar.Som ett resultat av arbetet har framkommit att det saknas en nationell samstämmighet i synen på hur oskyddade trafikanter på MLV, skall behandlas. Vidare existerar det en stor fokusering i centrala direktiv, kanske mest inofficiella, på bilisters och transportörers behov vid utformningen av MLV. Som en konsekvens av detta har de oskyddade trafikanterna blivit undanträngda, både bildligt och fysiskt talat, från dessa vägtyper och därmed begränsas deras förflyttnings-möjligheter. Ytterligare resultat är att det behövs mer utredning kring hänvisning för de oskyddade trafikanterna på MLV, detta för att i möjligaste mån separera trafikantgrupperna.I arbetet har också utförts en kostnadsberäkning av en GCM-lösning (GCM står för Gång, Cykel och Moped) på en vägsträcka, riksväg 80 mellan Falun och Hofors. Kostnaden blev 1,1 - 2,2 mn kr, vilket motsvarar en projektfördyring med 4,4 - 11 %, beroende på alternativ. De viktigaste slutsatserna i arbetet är att man bör anstränga sig till det yttersta för att erbjuda ett alternativ till en MLV, och att man då också måste förbättra skyltningen, för att undvika att oskyddade trafikanter irrar sig in på MLV:n, trots acceptabla alternativvägar. För detta har ett förslag till ett nytt vägmärke framtagits, Alternativ GCM-väg längs MLV, se Bilaga 5.

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No description available.

The increasing frequency and economic losses from natural disasters within the framework of decreasing agricultural prices and trade liberalization is becoming crucial in increasing poverty in the Mexican rural economy. During the past two decades, the governmental withdrawal from supporting the agricultural sector with investments in physical, financial and logistic instruments continues to stress agricultural livelihoods, as current private mechanisms have not replaced them effectively. It has contributed to making the agricultural sector particularly vulnerable to a number of hazards as it has weakened economic agents' response and impeded assets accumulation. This dissertation identifies economic vulnerability to natural and economic hazards in order to assess public and private coping capacity, and provides a conceptual framework and economic theory that supports the overall approach and employed methodologies. It is based on quantitative and qualitative research methods, and makes use of econometric analysis and stakeholders' views aimed at finding feasible solutions. Further, this dissertation offers a spatial model that can support policy-decision-making for the creation of differential investments in productive infrastructure, as well as financial instruments to reduce current vulnerability and poverty throughout the national territory. During the past two decades, over 80% of total economic losses from weather-related disasters occurred in the agricultural sector. In the same period, mean weighted agricultural prices have decreased over 50% in real terms, and since 1996 a trade deficit has persisted in this sector. Currently, the insufficient credit access, low coverage of crop insurance, as well as the near lack of investments to expand irrigation and further productive infrastructure is sharpening the vulnerability of rural livelihoods. These facts explain why this sector produces only 4% of the GDP despite employing over 20% of the national workforce. These facts undermine farmers' expectations of future incomes within the community, stimulating rural-urban out migration, which usually cannot be absorbed by the urban economy in sight of the modest industrial dynamism of the recent years. This leads to the enlargement of the informal sector in large cities and migratory flows to abroad, among others. (author's abstract)

No description available.

Os paradigmas da criação artística para a CAVE (CAVE Automatic Virtual Environment) ainda estão sendo elaborados pois, no âmbito da Realidade Virtual, é uma tecnologia recente e ainda bastante onerosa, fatores que dificultam sua disseminação. Ainda assim, algumas instituições possuem CAVEs para pesquisas artístico-culturais. Dentre elas, figura o centro de pesquisas Ars Electronica que, em parceria com o artista transmídia Maurice Benayoun, produziu em sua CAVE, cuja visitação é aberta ao público, a premiada obra World Skin. Com o intuito de situar o atual estado da arte das experimentações artísticas em CAVEs, esta obra mereceu análise detalhada de seus processos criativos e metodológicos. Nela, o autor investiga as reações cognitivas dos visitantes e propõe uma nova relação espaçocorporal dentro de um mundo virtual. A potencialidade artística da CAVE é grande e existe interesse dos artistas em explorá-la. As novas pesquisas e avanços tecnológicos apontam perspectivas de um maior acesso a este tipo de ambiente imersivo, consolidando-o como um prolífero suporte artístico. / The paradigms behind artistic creation for CAVE (CAVE Automatic Virtual Environment) are yet to be elaborate, since in the realm of Virtual Reality, this is a recent and expensive technology, which poses barriers to its own spreading. Even so, some institutions do have CAVEs for culture and artistic research. Among them, there\'s the research center Ars Electronica, which, in partnership with transmedia artist Maurice Benayoun, has produced in its CAVE (which is open for public visits), the award-winning work World Skin. With the objective of placing experimental artistic manifestations in CAVEs, this work has been deeply analyzed, concerning its creative processes and methods. The author evaluates the cognitive reactions of the visitors and proposes a new corporal-space relationship in a virtual world. The artistic potential behind a CAVE seems to be huge, and artists are willing to explore it. According to new researches and recent developed technologies, there will be a broader access to this kind of immersive environment, which might become a highly productive platform for artists.

Magister Educationis - MEd / In Suid-Afrikaanse skole word op 'n gereelde grondslag gevind dat nie alle leerlinge baat vind by gewone groeponderrig soos dit in die gewone klaskamer vergestalting vind nie. Enersyds is daar die groep wat op Buitengewone Onderwys aangewese is, en andersyds is daar die groep wat nie vir buitengewone onderwys kwalifiseer nie, maar nog steeds nie die mas in die gewone klas kan opkom nie. Laasgenoemde maak dikwels deel uit van 'n sosio-ekonomies of polities benadeelde groep en die grootste persentasie druipelinge en vroeë skoolverlaters, in vergelyking met die res van die skoolbevolking , kom uit die groep. Die swak akademiese prestasies van hierdie leerlinge word in die meeste literatuur gekoppel aan kognitiewe benadeeldheid. Opvoedkundige Sielkunde. Kognitiewe benadeeldheid word vir die doel van hierdie mini-tesis gelykgestel aan kulturele benadeeldheid, maar dit word gekoppel aan die definisie van Feuerstein wat dit beskou as 'n gebrek aan bemiddelde leerervaring (BLE). Te midde van 'n strewe na sosio-ekonomiese, politieke en opvoedkundige rekonstruksie in Suid-Afrika, is dit belangrik dat probleme met skolastiese prestasie op die intermediêre vlak aangespreek word. Alhoewel skole weinig kan doen om 'n radikale verandering in die omgewingstoestande van leerlinge teweeg te bring, kan dit egter 'n groot bydrae lewer in die ontwikkeling van die kognitiewe vermoëns van kinders. Om hierdie belangrike funksie te vervul, is ditnoodsaaklik dat onderwysers in hul voorbereiding vir hul taak deeglik toegerus moet word met gepaste teoretiese begronding, asook daaruitvloeiende maatreëls om kognitiewe benadeeldheid by hul leerlinge effektief te verklaar en te bekamp. Die fokus in hierdie mini-tesis is op die benadering ten opsigte van kognitiewe benadeeldheid by primêre skool leerlinge in die opleidingsprogramme - spesifiek die Opvoedkundesillabusse - van onderwyskolleges van die Departement van Onderwys en Kultuur, Raad van Verteenwoordigers (DOK:RV); en die Departement van Onderwys en Opleiding (DOO), asook ontwikkelinge op die gebied van kognitiewe onderwys in Suid-Afrika. Op grond van die leemtes in die betrokke opleidingsprogramme is die doel van hierdie mini-tesis om BLE as noodsaaklike komponent in die opleidingsprogram van primêre skoolonderwysers in Suid- Afrika aan te beveel.