43532 Chapters
Medium 9781780644264

9: Yam Mosaic

Tennant, P.; Fermin, G.; Tennant, P.; Fermin, G. CABI PDF


Yam Mosaic

Angela O. Eni*

Department of Biological Sciences, Covenant University, Ota, Nigeria

9.1 Introduction

Yam mosaic virus (YMV), genus Potyvirus, infects and causes mild to severe leaf symptoms both in domesticated edible yam species and their wild relatives (Thouvenel and Fauquet, 1979; Goudou-Urbino et al., 1996a) in all locations where yams are grown (Africa, the

Caribbean, Latin America and the South Pacific)

(Goudou-Urbino et al., 1996b; Hughes et al.,

1997; Eni et al., 2008, 2010; Odedara et al.,

2011). Several other potyviruses described in various yam-growing countries in the 1970s and

1980s including Dioscorea green-banding mosaic virus reported in Togo (Reckhaus and

Nienhaus, 1981), yam virus in Nigeria (Terry,

1976), and Dioscorea trifida virus reported in the Caribbean and in South America (Migliori and Cadilhac, 1976), are synonymous with YMV and were all found to be related to YMV both serologically and in host range (Porth et al.,

1987; Goudou-Urbino et al., 1996a). Japanese yam mosaic virus (JYMV), another Potyvirus isolated from D. japonica in Japan in 1974 was reported as a strain of YMV (Okuyama and Saka,

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Medium 9780253011008

13. Winterreise as a Cycle

Suurpää, Lauri Indiana University Press ePub

I will now relate the second part of Winterreise to the four perspectives on the large-scale organization of song cycles outlined in the last chapter: textual unity (13.1), large-scale harmonic organization (13.2), musical cross-references (13.3), and whether song cycles should be understood as unified wholes at all (13.4). I will also comment on some published analyses of Winterreise. Even though these four areas often appear in the literature on song cycles (as we saw in the preceding chapter), here I propose novel methodologies for approaching them. The poetic cycle is approached from the perspective of hierarchically layered narrative, suggested by Roland Barthes (13.1); the overall harmonic organization is analyzed through concepts of neo-Riemannian theory (13.2); musical cross-references are seen as growing out of various kinds of musical factors, not just pitch motives (13.3); and aspects creating a sense of discontinuity are seen as being in direct interaction with factors creating unity (13.4).

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Medium 9781576753798

22. Evolutions of Open Systems Theory

Holman, Peggy Berrett-Koehler Publishers PDF

22 merrelyn emery and donald de guerre

Evolutions of Open

Systems Theory

We must build a new world, a far better world—one in which the eternal dignity of man is respected.

—Harry S. Truman

Adapting to the Global Economy

When the city of Brandon in Manitoba, Canada, faced a challenging set of competing demands, it turned to the most recent advances in Open Systems Theory (OST). Brandon needed to:

• Maintain its rural values and quality of life while renewing its economy

• Engage its citizens toward participative democracy

Brandon used OST because, while most sectors had expertly developed strategic plans, they were uncoordinated, wasteful, and increasing either citizen apathy or resistance. In the fall of 2001, the city began to create adaptive organizations and governance. They chose a creative mix of

Search Conferences (SC), Participative Design Workshops (PDW), and Unique Designs (UD). In

2003, Brandon won the “best place to work in Western Canada” award. In 2004–2005, citizens were selected through the community reference system (see “Search Conference,” chapter 35) and engaged in participative strategic planning. Figure 1 shows the social map.

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Chapter 4 Critical Conversations in Action

Carrie Chapman Solution Tree Press ePub

Conversation Starters

How did these co-teaching teams develop a shared vision for all students? What might our shared vision be?

What do these examples show about using data to inform practice? How do we use our data in co-teaching?

What co-teaching strategies and approaches improved these co-teaching teams and their instructional plans? How might we use a variety of strategies and approaches for instruction?

How do these examples show their continuous addition of value to instructional design and implementation? What might add value with our instruction and co-teaching implementation?

Now that we have given you a preview of the four sets of critical conversations and the protocols for each set, we offer some stories from real teachers that illustrate co-teaching in action. Co-teaching is something like learning to swim. You can execute all of the right strokes, remember to breathe, and actually stay afloat, but you may not feel like a real swimmer until you can get out there and swim with the sharks.

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Medium 9781628871289

1 The Best Full-Day, Two and Three-Day Tours

Stephen Brewer FrommerMedia ePub

Gondolas on the Grand Canal and Basilica Santa Maria della Salute.

The Best in One Day

The French novelist Marcel Proust said of his first trip to Venice, “My dream became my address.” You may feel the same way as you find your way to the Dogana, stand alongside the sea lanes at the entryway to the city, and take in the uniquely Venetian panorama of palaces and churches. End your day’s touring in one of the world’s most storied squares and the heart of Venice, Piazza San Marco. START: Vaporetto to Salute.

Santa Maria della Salute. The church of “Saint Mary of Health” was built in 1630, an offering of thanks to the Virgin Mary for bringing an end to a plague outbreak that killed a third of the city’s population. The massive white-marble cathedral by architect Baldassare Longhena commands the entrance to the Grand Canal. Its high domes, suggestive of the Madonna’s crown, mimic those of the Basilica di San Marco across the water. A suitably impressive collection of paintings hangs in the round, marble interior, including Tintoretto’s Wedding at Cana and Titian’s Saint Mark Enthroned with Saints. The Virgin is honored on the high altar with a Byzantine icon and a wonderfully dramatic marble sculptural group by Giusto Le Corte—an old hag representing the plague flees from a torch-bearing angel as the Virgin and a noblewoman, in the role of Venice, look on.  30 min. See p 28, .

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