Mangaba (Hancornia speciose Gomes—Apocynaceae) is an important fruit tree in Brazil and has an unexplored stock germplasm collection. Commercial varieties are unavailable and little is known about its potential as a ...Mangaba (Hancornia speciose Gomes—Apocynaceae) is an important fruit tree in Brazil and has an unexplored stock germplasm collection. Commercial varieties are unavailable and little is known about its potential as a source of genetic diversity for molecular breeding programs. Progeny tests may improve studies on commercial variability and facilitate genetic improvement of the species. Our aim was to evaluate the genetic diversity and structure of accessions and progeny from the Mangaba Genebank of Embrapa Coastal Tablelands. We estimated the genetic diversity of 96 individuals using 4 SSR markers. The mean observed heterozygosity was lower than expected, showing an excess of homozygotes, corroborated by the positive coefficient of endogamy. The genetic diversity indexes (Fst) and Nei’s unbiased genetic identity (GI) revealed, in general, moderate genetic diversity between accessions. The relationship between matrices and progenies showed that there may be a greater degree of genetic information sharing between the ABP1 and ABP2 accessions. The Bayesian analysis suggested the presence of two distinct groups of genotypes (K = 2). These results will assist future breeding programs and facilitate the conservation of mangaba.展开更多
During the first decade of the 21st century,responding to a renewed public interest in modern prefabricated residential design,Ralph Rapson adapted his 1945 Case Study House#4 into a family of prototypical modular hou...During the first decade of the 21st century,responding to a renewed public interest in modern prefabricated residential design,Ralph Rapson adapted his 1945 Case Study House#4 into a family of prototypical modular house designs marketed by Wieler LLC.Like the original design,the modular designs are organized around a central daylit“greenbelt”.At the time of Rapson’s death in 2008 the modular greenbelt line included a range of prototypes from 570 to 2,700 square feet.The original Arts&Architecture Case Study House Program was defined by John Entenza around five core principles,which notably included design prototypicality and incorporation of contemporary developments in the building industry.The five Case Study House principles structure this analysis of the array of Greenbelt designs Ralph Rapson adapted to modular construction and the 21st century market response to their production.Over four years and hundreds of customer inquiries,the Greenbelt family of prototypical designs grew four times larger than the number of built examples,suggesting that design and manufacturing strategies which facilitate adaptation to specific project needs are important characteristics for success in the contemporary modular residential market.展开更多
土生葡人作为澳门独有的族群,以“他者”视角观察中国,既有真实的记录,也有艺术的加工想象。高美士是土生葡人的杰出代表,著名的汉学家,一生出书著说无数,其葡文著作《澳门事实与传说》(Macao Factos e Lendas)于1979年由里斯本澳门坚石...土生葡人作为澳门独有的族群,以“他者”视角观察中国,既有真实的记录,也有艺术的加工想象。高美士是土生葡人的杰出代表,著名的汉学家,一生出书著说无数,其葡文著作《澳门事实与传说》(Macao Factos e Lendas)于1979年由里斯本澳门坚石拿(Quinzena de Macao)出版,后由澳门文化局再版,记录描绘了十九世纪末、二十世纪初澳门城市形象和人文风貌,为澳门研究和比较文学形象学研究提供了丰富的素材。展开更多
文摘Mangaba (Hancornia speciose Gomes—Apocynaceae) is an important fruit tree in Brazil and has an unexplored stock germplasm collection. Commercial varieties are unavailable and little is known about its potential as a source of genetic diversity for molecular breeding programs. Progeny tests may improve studies on commercial variability and facilitate genetic improvement of the species. Our aim was to evaluate the genetic diversity and structure of accessions and progeny from the Mangaba Genebank of Embrapa Coastal Tablelands. We estimated the genetic diversity of 96 individuals using 4 SSR markers. The mean observed heterozygosity was lower than expected, showing an excess of homozygotes, corroborated by the positive coefficient of endogamy. The genetic diversity indexes (Fst) and Nei’s unbiased genetic identity (GI) revealed, in general, moderate genetic diversity between accessions. The relationship between matrices and progenies showed that there may be a greater degree of genetic information sharing between the ABP1 and ABP2 accessions. The Bayesian analysis suggested the presence of two distinct groups of genotypes (K = 2). These results will assist future breeding programs and facilitate the conservation of mangaba.
文摘During the first decade of the 21st century,responding to a renewed public interest in modern prefabricated residential design,Ralph Rapson adapted his 1945 Case Study House#4 into a family of prototypical modular house designs marketed by Wieler LLC.Like the original design,the modular designs are organized around a central daylit“greenbelt”.At the time of Rapson’s death in 2008 the modular greenbelt line included a range of prototypes from 570 to 2,700 square feet.The original Arts&Architecture Case Study House Program was defined by John Entenza around five core principles,which notably included design prototypicality and incorporation of contemporary developments in the building industry.The five Case Study House principles structure this analysis of the array of Greenbelt designs Ralph Rapson adapted to modular construction and the 21st century market response to their production.Over four years and hundreds of customer inquiries,the Greenbelt family of prototypical designs grew four times larger than the number of built examples,suggesting that design and manufacturing strategies which facilitate adaptation to specific project needs are important characteristics for success in the contemporary modular residential market.
文摘土生葡人作为澳门独有的族群,以“他者”视角观察中国,既有真实的记录,也有艺术的加工想象。高美士是土生葡人的杰出代表,著名的汉学家,一生出书著说无数,其葡文著作《澳门事实与传说》(Macao Factos e Lendas)于1979年由里斯本澳门坚石拿(Quinzena de Macao)出版,后由澳门文化局再版,记录描绘了十九世纪末、二十世纪初澳门城市形象和人文风貌,为澳门研究和比较文学形象学研究提供了丰富的素材。
