34,438 research outputs found
Letter from John Berry to Cyrus S. Avery, dated February 7, 1925
No full textLetter from John Berry to Cyrus S. Avery, dated February 7, 1925 discussing legislature effecting the state highway systemThe Cyrus S. Avery Collection chronicles the life and times of Cyrus Stevens Avery. Known as the 'Father of Route 66', Avery served in government positions and elected offices as well as in highway associations that led him to have an influential impact on the planning and development of the initial American highway system. Through Avery's involvement with the City of Tulsa, Oklahoma and his own agricultural interests, the collection also documents a growing city and its' rural life in the early twentieth century
Len Berry
No full text"VX114943 S/Sgt Len Berry East Point Bty R.A.A 1941 - 42".VX114943 Staff Sergeant Len Berry. East Point Battery, Royal Australian Artillery 1941 - 42
Vascular functioning and development of the kiwifruit berry (Actinidia deliciosa)
No full textThe aim of this study was to understand kiwifruit berry development and the role of cell turgor and the phloem unloading pathway in development. Important aspects of berry development include the size of the fruit and its composition. The fresh weight growth curve of the kiwifruit berry was shown to be double sigmoid in shape. Dry weight accumulated linearly for the initial 139 days after anthesis (DAA). At this time the soluble solids concentration began to increase. Berry firmness was measured using two methods, with the penetrometer and with a new non-destructive method, utilising skinfold callipers. Both methods exhibited similar results, indicating that the skin callipers may be useful in the future for non-destructive berry rheological measurements.
Cell turgor was measured indirectly from measurements of symplasmic and apoplasmic solute potentials, and the matric potential of the berry. Apoplasmic sap, required to measure the apoplasmic solute potential, was extracted using two different methods the pressure chamber and through centrifugation. Measurements of sap osmotic potential suggest that the sap extracted using the centrifuge was contaminated with symplasmic sap, resulting in a negative cell turgor estimate. However, the pressure chamber technique provided apoplasmic sap that produced a more accurate estimate of cell turgor. Direct estimates of cell turgor were only obtained from the midpoint of the growing season because of contamination with symplasmic sap, but the values obtained were comparable to literature values for developing grape and tomato berries.
The phloem unloading pathway in the fruit was investigated using a symplasmic tracer dye, carboxyfluorescein diacetate coupled with 14C labelling and autoradiography. The phloem unloading pathway was symplasmic until 91 DAA when the dye was restricted to the phloem cells only, indicating a change to an apoplasmic pathway. However, due to the lack of functional unloading seen in radiolabelled samples, a change in the phloem unloading pathway could not be confirmed
Ethylene signalling receptors and transcription factors over the grape berry development: gene expression profiling
No full textThe ethylene signalling pathway has never been fully described in grapes. Regarded as a non-climacteric fruit, grape berry seems to ripen independently to ethylene, however 1-methylcyclopropene (1-MCP), a specific inhibitor of ethylene receptors has been shown to alter berry ripening processes. Here, we report profiles of transcript abundance of various receptors and transcription factors, associated with ethylene signalling, throughout berry development. Transcript abundance of ortholog VvETR2 gene showed a transient peak at the inception of ripening in 'Cabernet Sauvignon' berries coinciding with an internal ethylene peak, prior to colour changes. The transcripts of other orthologs such as VvRTE1 and VvEIN4 steadily increased over the berry development, while VvERS1 ortholog transcripts exhibited a peak of accumulation only when the berries were fully coloured. Finally, mRNAs of two transcription factors, VvEIN3 and VvMADS4, showed strong accumulation during the late phase of berry ripening. We also observed inflections of mRNA accumulation after incubating berry clusters with ethylene and 1-MCP (inhibitor of ethylene action). The main effect was observed with VvEIN3 transcripts that showed a significant up-regulation after incubation with 1-MCP. Furthermore, other transcript levels (VvETR2 and VvCTR1) were also increased by exogenous ethylene, once the colour change was initiated (i.e. 10 to 11 weeks after bloom). Some studies have already indicated that non-climacteric fruits shared signalling pathways with climacteric fruits. However, most differences between these ripening classifications remain poorly described at the genetic/molecular level. This data set will contribute to a better understanding on potential involvements of ethylene signalling in a non-climacteric fruit such as grape berry
Polarization singularities in isotropic random vector waves
No full textFollowing Nye & Hajnal, we explore the geometry of complex vector waves by regarding them as a field of polarization ellipses. Singularities of this field are the C lines and L lines, where the polarization is purely circular and purely linear, respectively. The singularities can be reinterpreted as loci of photon spin 1 (C lines) and 0 (L lines). For Gaussian random superpositions of plane waves equidistributed in direction but with an arbitrary frequency spectrum, we calculate the density (length per unit volume) of C and L lines
Map of route travelled and discoveries made by South Australian Government Central and Western Exploring Expedition under command of William Christie Gosse [cartographic material] : showing natural features and description of country /
No full text[Rev. ed.]. Facsim. of rev. map showing the expedition's route from Depot, Lander River (N.T.) to Mount Squires and Townsend Ridges (W.A.), to Hamilton Creek (S. Aust). Also shows the Overland Telegraph Line. Shows topographic detail for route, including depots, numbered. Includes notes on topography and vegetation. Relief by hachures and spot heights.; "This plan differs 8 miles in longitude from the original which was compiled during the exploration. W.C. Gosse 9.3.76."; Edwin Berry was second in command of the expedition.; Scale computed from latitude.; Also available online http://nla.gov.au/nla.map-vn1341981; Facsim. Originally published: [Rev. ed.] Adelaide : Surveyor-General's Office : Alfred Vaughan, asst. photo-lithographer, [1876]
Map of route travelled and discoveries made by South Australian Government Central and Western Exploring Expedition under command of William Christie Gosse [cartographic material] : showing natural features and description of country [with mining leases added] /
No full textFacsim. copy of map showing the expedition's route from Lander River, N.T. to Mount Squires and Townsend Ridges, W.A., to Hamilton Creek, S. Aust. Also shows the Overland Telegraph Line. Shows topographic detail for route, including depots, numbered. Includes notes on topography and vegetation. Relief by hachures and spot heights.; Edwin Berry was second in command of the expedition.; This is the original ed., with latitude uncorrected.; The original of this facsim. has had added to it some cadastral information about blocks (possibly for mining) in the Musgrave Ranges, at Haasts Bluff and elsewhere with note: See plan of Giles' explanations for correct position of these claims. Claim numbers appear to be dated 1874 and 1875 ; applicants include E. Giles, H. Gosse, Philip Levi, R.C. Baker, Grant and Stokes.; Map extends beyond the neat line of the sheet.; Also available online http://nla.gov.au/nla.map-vn2864366; Facsim. Originally published: Adelaide : Surveyor-General's Office : Alfred Vaughan, asst. photo-lithographer, [1875?]
Exploring the diffusion of innovation among high and low innovative localities: A test of the Berry and Berry model
No full textBerry and Berry (1999, 2007) argue that diffusion of policy innovations is driven by learning, competition, public pressure or mandates from higher levels of authority. We undertake a first time analysis of thiswhole framework and present three sub-studies of innovation. First, we examine the drivers of total innovation. Second, we assess whether the factors influencing the most innovative localities are similar to or different from the factors impacting the low localities. Finally, we disaggregate total innovation into three different innovation types. Our findings, undertaken on a panel of English local governments over four years, reveal that amajority of the diffusion drivers from innovation and diffusion theory are indeed positively significant for total innovation. However, local authorities that adopt higher and lower levels of innovation than predicted do things differently while the framework has limited applicability to types of management innovation. We concluded that the Berry and Berry model is best suited to the analysis of total innovation, but not as well suited to the analysis of different types of innovation. We also outline a research agenda that might better explain the diffusion of public policy and public management innovation types than is captured by current literature. © 2011 Taylor & Francis.link_to_subscribed_fulltex
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