scholarly journals Correlating light absorbance parameters in peach skin with susceptibility to streaking and association with rainwater components

2021 ◽  
Author(s):  
Linus Schmitz ◽  
Guido Schnabel
Keyword(s):  
South Carolina ◽  
Color Space ◽  
Physical Property ◽  
Time Frame ◽  
Fruit Production ◽  
Symptom Development ◽  
Fruit Maturation ◽  
History Of ◽  
Rain Events ◽  
Light Absorbance

Since first observed in 2003, peach skin streaking (PSS) has increasingly affected fruit production in the Southeast. Since 2017 we have documented the occurrence of peach skin streaking on 21 cultivars in South Carolina and symptoms have also been reported in Maryland and Pennsylvania. PSS seems to be linked to an unidentified causal agent mediated in rainwater with susceptibility closely related to the ripening status of maturing fruit. Over the course of the 2019 peach growing season, we collected rainwater at a South Carolina peach farm with a history of PSS and analyzed samples for chemical and physical property. Five cultivars were monitored for occurrence of PSS to associate specific rain events with symptom development in the field. PSS was observed in the field on one of the monitored and three additional cultivars between May and June, and five rain events coincided in time with symptom development. However, chemical, and physical properties from these rainwater samples were not significantly different from samples not associated with PSS in that time frame. Fruit of the five cultivars were also collected at 21, 14, 7 and 0 days before harvest, to determine light absorbance parameters, ΔA and color space, and to induce symptoms under laboratory conditions by treatment with ClO2. There were significant correlations between symptom development and light absorbance parameters illustrating how proneness to PSS increases during fruit maturation.

The perils and dangers of these knights (and undead peasants): Interpreting English and Scottish Extent Rolls of 1297–1305

2016 ◽  
Vol 36 (1) ◽  
pp. 13-39 ◽  
Author(s):  
J. Donnelly
Keyword(s):  
Social History ◽  
Economic History ◽  
Time Frame ◽  
Compte Rendu ◽  
History Of ◽  
Different Sources

Medieval Scottish economic and social history has held little interest for a unionist establishment but, just when a recovery of historic independence begins to seem possible, this paper tackles a (perhaps the) key pre-1424 source. It is compared with a Rutland text, in a context of foreign history, both English and continental. The Berwickshire text is not, as was suggested in 2014, a ‘compte rendu’ but rather an ‘extent’, intended to cross-check such accounts. Read alongside the Rutland roll, it is not even a single ‘compte’ but rather a palimpsest of different sources and times: a possibility beyond earlier editorial imaginings. With content falling (largely) within the time-frame of the PoMS project (although not actually included), when the economic history of Scotland in Europe is properly explored, the sources discussed here will be key and will offer an interesting challenge to interpretation. And some surprises about their nature and date.

Unpacking storm damages on a developed shoreline: Relating dune erosion and urban runoff

Shore & Beach ◽  
2019 ◽  
pp. 35-45
Author(s):  
Patrick Barrineau ◽  
Timothy Kana
Keyword(s):  
South Carolina ◽  
Storm Events ◽  
Near Surface ◽  
Dune Erosion ◽  
Groundwater Flux ◽  
Impact Scale ◽  
Cape Hatteras ◽  
Myrtle Beach ◽  
Rain Events ◽  
Elevation Model

Hurricane Matthew (2016) caused significant beach and dune erosion from Cape Hatteras, North Carolina, USA, to Cape Canaveral, Florida, USA. At Myrtle Beach, South Carolina, the storm caused beach recession, and much of the southern half of the city’s beaches appeared to be overwashed in post-storm surveys. Around half of the city’s beaches appeared overwashed following the storm; however, the Storm Impact Scale (SIS; Sallenger 2000) applied to a pre-storm elevation model suggests less than 10% of the city’s beaches should have experienced overwash. Spatial analysis of elevation and land cover data reveals dunes that were “overwashed” during Matthew drain from watersheds that are >35% impervious, where those showing only dune recession are <5% impervious. The densely developed downtown of Myrtle Beach sits on a low seaward-sloping terrace. Additionally, indurated strata beneath the downtown area can prevent groundwater from draining during excessive rain events. As a result, the most continuous impervious surface cover and near-surface strata lie within a half-kilometer of the beach and drain directly to the backshore. Along the U.S. Southeast coast, this is somewhat rare; many coastal systems feature a lagoon or low-lying bottomland along their landward border, which facilitates drainage of upland impervious surfaces following storm passage. At Myrtle Beach, all of the stormwater runoff is drained directly to the beach through a series of outfall pipes. Many of the outfall pipes are located along the backshore, near the elevation of storm surge during Matthew. Runoff from Matthew’s heavy rains was observed causing ponding on the landward side of the foredune and scouring around beach access walkways. Based on these observations, the severe dune erosion experienced near downtown Myrtle Beach during Hurricane Matthew may have been caused by runoff and/or groundwater flux rather than overwash. These results highlight an unexpected relationship between upland conditions and dune erosion on a developed shoreline. That is, dune erosion can be caused by mechanisms beside overwash during storm events.

TECTONIC HISTORY OF THE EASTERN PIEDMONT IN SOUTH CAROLINA

2016 ◽  
Author(s):  
C. Scott Howard ◽  
◽  
Robert H. Morrow ◽  
Donald T. Secor
Keyword(s):  
South Carolina ◽  
Tectonic History ◽  
History Of

The Aristocracy in England and Tuscany, 1000 - 1250

2019 ◽  
Author(s):  
Peter Coss
Keyword(s):  
Time Frame ◽  
Grand Narrative ◽  
English History ◽  
Internal Dynamics ◽  
Italian Experience ◽  
English Society ◽  
History Of ◽  
External Stimuli ◽  
The Relationship ◽  
Interpretative Framework

Part I of this book is an in-depth examination of the characteristics of the Tuscan aristocracy across the first two and a half centuries of the second millennium, as studied by Italian historians and others working within the Italian tradition: their origins, interests, strategies for survival and exercise of power; the structure and the several levels of aristocracy and how these interrelated; the internal dynamics and perceptions that governed aristocratic life; and the relationship to non-aristocratic sectors of society. It will look at how aristocratic society changed across this period and how far changes were internally generated as opposed to responses from external stimuli. The relationship between the aristocracy and public authority will also be examined. Part II of the book deals with England. The aim here is not a comparative study but to bring insights drawn from Tuscan history and Tuscan historiography into play in understanding the evolution of English society from around the year 1000 to around 1250. This part of the book draws on the breadth of English historiography but is also guided by the Italian experience. The book challenges the interpretative framework within which much English history of this period tends to be written—that is to say the grand narrative which revolves around Magna Carta and English exceptionalism—and seeks to avoid dangers of teleology, of idealism, and of essentialism. By offering a study of the aristocracy across a wide time-frame and with themes drawn from Italian historiography, I hope to obviate these tendencies and to appreciate the aristocracy firmly within its own contexts.

Black Carolinians: A History of Blacks in South Carolina from 1895 to 1968

1973 ◽  
Vol 78 (5) ◽  
pp. 1536
Author(s):  
Walter B. Weare ◽  
I. A. Newby
Keyword(s):  
South Carolina ◽  
History Of

Toward a history of housing market analysis

2018 ◽  
Vol 11 (4) ◽  
pp. 632-647 ◽  
Author(s):  
William C. Baer
Keyword(s):  
Housing Market ◽  
Urban Society ◽  
Time Frame ◽  
Market Analysis ◽  
Ancient Rome ◽  
Content Type ◽  
Urban Market ◽  
The Us ◽  
The Usa ◽  
History Of

Purpose This paper aims to relate early history of housing conceptualizations and market analysis in the Anglosphere (Britain, the USA, Canada, Australia and New Zealand). Historians are ignorant of them but clear market analyses had early beginnings in every urban society for developing and accommodating growing populations. Design/methodology/approach Historiography. Findings Aspects of market analysis, especially appraisal and rudimentary approaches to the housing market in the Anglosphere, can be traced back to ancient Rome, housing market conceptualizations to Dr Nicholas Barbon and seventeenth-century London’s first population and housing boom and market analysis techniques in the USA at its founding, when Charles-Maurice de Talleyrand Perigor was the first to refine them and write them up in 1794-1796. The US next made major advances in the 1930s. The overall trend has been from inferred analyses to fundamental (derived) analyses, emphasizing “quantifiable data.” Practical implications This paper elicits researcher’s professional awareness that each nation has an implicit history of its early development practices and techniques. Originality/value The time frame of most housing market analysts is the recent past, the present and the future. But how enduring are their concerns? Do operational values in a housing market reflect historical epochs, or are there some universalities? Furthermore, most urban historians are ignorant of urban market dynamics. It does not occur to them that some of the dynamics that analysts attempt to capture today might always have been inherent in the urban built environment, regardless of era or urbanized part of the globe under consideration.

Refining the Paleoproterozoic tectonothermal history of the Penokean Orogen: New U-Pb age constraints from the Pembine-Wausau terrane, Wisconsin, USA

2021 ◽  
Author(s):  
Jian-Wei Zi ◽  
Stephen Sheppard ◽  
Janet R. Muhling ◽  
Birger Rasmussen
Keyword(s):  
Volcanic Rocks ◽  
Massive Sulfide ◽  
Time Frame ◽  
Metamorphic Event ◽  
Published Data ◽  
Banded Iron Formations ◽  
Time Space ◽  
Lithospheric Extension ◽  
History Of ◽  
Back Arc

An enduring problem in the assembly of Laurentia is uncertainty about the nature and timing of magmatism, deformation, and metamorphism in the Paleoproterozoic Wisconsin magmatic terranes, which have been variously interpreted as an intra-oceanic arc, foredeep or continental back-arc. Resolving these competing models is difficult due in part to a lack of a robust time-frame for magmatism in the terranes. The northeast part of the terranes in northern Wisconsin (USA) comprise mafic and felsic volcanic rocks and syn-volcanic granites thought to have been emplaced and metamorphosed during the 1890−1830 Ma Penokean orogeny. New in situ U-Pb geochronology of igneous zircon from the volcanic rocks (Beecher Formation), and from two tonalitic plutons (the Dunbar Gneiss and Newingham Tonalite) intruding the volcanic rocks, yielded crystallization ages ranging from 1847 ± 10 Ma to 1842 ± 7 Ma (95% confidence). Thus, these rocks record a magmatic episode that is synchronous with bimodal volcanism in the Wausau domain and Marshfield terrane farther south. Our results, integrated with published data into a time-space diagram, highlight two bimodal magmatic cycles, the first at 1890−1860 Ma and the second at 1845−1830 Ma, developed on extended crust of the Superior Craton. The magmatic episodes are broadly synchronous with volcanogenic massive sulfide mineralization and deposition of Lake Superior banded iron formations. Our data and interpretation are consistent with the Penokean orogeny marking west Pacific-style accretionary orogenesis involving lithospheric extension of the continental margin, punctuated by transient crustal shortening that was accommodated by folding and thrusting of the arc-back-arc system. The model explains the shared magmatic history of the Pembine-Wausau and Marshfield terranes. Our study also reveals an overprinting metamorphic event recorded by reset zircon and new monazite growth dated at 1775 ± 10 Ma suggesting that the main metamorphic event in the terranes is related to the Yavapai-interval accretion rather than the Penokean orogeny.

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