1,551 research outputs found
Landscape with buildings : a North Staffordshire study based on the medieval parish of Leek
No full textLeek, with 53,102 acres and nineteen townships, was the largest of Staffordshire's medieval parishes, and one for which an earlier origin- has been suggested. Set in the foothills of the Pennines it formed part of the Leek and Macclesfield Forest where, in the early thirteenth century, Ranulph, Earl of Chester, established both the market town of Leek and the Cistercian abbey of Dieulacres. Altitude, high rainfall and a short growing season made it a pastoral area with a settlement pattern of small hamlets and isolated farms. It was an `open' parish with huge areas of waste, and population growth between 1563 and 1666 was well above the national average. The absence of wealth is reflected in the survival rate of early houses. Only five pre-date 1500, and sixteenth century remains are small and generally fragmentary. In the seventeenth century national growth worked in favour of the pastoral farmer. Leek's cattle market became one of the most important in the county, and a newfound prosperity manifested itself in the rural areas in good quality stone housing. The houses of the gentry and yeoman farmers survive in considerable numbers from this period, and form a major element in this study. The houses of the poor have been more elusive. Pastoral farming was increasingly supplemented by industry. Iron smelting had been present from the Middle Ages, but faded away in the eighteenth century. The making of buttons and silk goods were established in the seventeenth century, and the eighteenth century saw a modest expansion of urban wealth, and a new generation of houses built for dyers, button-men, `mohair' merchants and lawyers. The button industry dwindled in the face of competition from Birmingham, but the silk industry survived to become industrialized in the nineteenth century, when the market town was engulfed in a sea of mill buildings and workers housing
Studies on the Physiology of Chinese Leek and Blanched Chinese Leek ( Allium odorum L. )
No full text本試驗分別於塑膠網室及田間種植韮菜和韮黃，調查並比較兩者含氮化合物及數種酵素活性的差異。結果顯示，韮黃葉片中的硝酸鹽含量較韮菜葉片中為低，但是氨鹽及總胺基酸量則以韮黃為多。葉片中的硝酸鹽還原酶丶 麩醯胺合成酶及酸性磷酸酶活性都以韮黃較低，但過氧化物酶活性則以韮菜較低。根的硝酸鹽丶 莖的總胺基酸丶莖或根的碳水化合物等含量，均以韮菜為高。韮黃的乾物重及葉綠素含量均比韮菜少，但水份則較多。韮黃因遮光處理所引起之生理異現，有類似於植株老化的反應。Experiments were conducted in a plastic house and in the field to investigate nitrogenous compounds and some enzyme activities of the Chinese leek (grenleek) and its counterpart, blanched leek, which is grown in the dark.
Leaves of the blanched leek had lower concentrations of nitrate and soluble protein but higher concentrations of ammonium and total free amino acid than leaves of the green leek. The activities of nitrate reductase, glutamine synthetase, and acid phosphatase in leaves were also lower, but peroxidase activity was usually higher. Nitrate in roots, total free amino acids in stems, and soluble carbohydrate were much less in both stems and roots of the blanched leek than in the same parts of the green leek.
The blanched leek had lower dry weight and chlorophyll concentration than the green leek, but a higher water content regardless of the plant portion tested. The physiological response of the Chinese leek to dark treatment was similar to that of senescence
T. M. Leek, J. E. Sawyer, H. M. Damiel, and J. A. Hodges
No full textFour men standing from left to right are, T. M. Leek, J. E. Sawyer, H. M. Damiel, and J. A. Hodges.https://mavmatrix.uta.edu/specialcollections_startelegram1950s/21885/thumbnail.jp
Weed Control in Bulb Crops (Onion, Leek, Garlic, Shallot)
No full textRevised! HS-193, a 3-page fact sheet by William M. Stall, describes effective weed management techniques for onions, leek, garlic, and shallots in Florida and provides a table of listing herbicides available to growers for chemical weed control of bulb crops. This publication updates the 2003 tables to reflect current recommendations. Published by the UF Department of Horticultural Sciences, October 2006.
HS193/WG033: Weed Management in Bulb Crops (Onion, Leek, Garlic, Shallot) (ufl.edu
Weed Control in Bulb Crops (Onion, Leek, Garlic, Shallot)
No full textRevised! HS-193, a 3-page fact sheet by William M. Stall, describes effective weed management techniques for onions, leek, garlic, and shallots in Florida and provides a table of listing herbicides available to growers for chemical weed control of bulb crops. This publication updates the 2003 tables to reflect current recommendations. Published by the UF Department of Horticultural Sciences, October 2006.
HS193/WG033: Weed Management in Bulb Crops (Onion, Leek, Garlic, Shallot) (ufl.edu
Root Growth and Nitrogen Utilization of a Leek Crop and an Undersown Catch Crop
No full textAfter its late harvest a leek (Allium porrum) crop will normally leave large quantities of nitrogen (N) in the soil which may be subject to leaching. A possible method to reduce N leaching losses is to establish a catch crop before the harvest of the leek crop. It was the aim of this study to investigate the effects of incorporating a catch crop in a leek crop with minimal competition and to monitor how root growth affected N availability across soil depths at different distances between catch and leek crop rows. To reduce competition between both crops leek was planted at 0.5 and 0.75 m row distances and chicory (Cichorium intybus) as a catch crop at an interrow spacing of 0.75 m. Minirhizotron glass tubes were inserted in the middle of the interrow spaces (with or without catch crop established in mid July) and in the leek row. Leek roots grew to a depth of about 0.4 m by mid October with a high root density directly below the leek row but did not extend growth to the centre of the 0.75 m interrow. At the same time the catch crop had extended its roots to a depth of at least 1.25 m and was exploring the full width of the 0.75 m interrow with some roots even below the leek rows. The results show that it is possible to establish a catch crop in leek thereby depleting soil N and reduce the risk of N leaching without jeopardising crop yield
What is specific about category specificity? Fractionating patterns of impairments and the spurious living/nonliving dichotomy
No full textWhat aspects of the data from studies of acquired category-specific impairments are relevant to theories of knowledge representation? Discussion in the target article focuses on the living/nonliving dichotomy. However, many case studies reveal consiserably more complex patterns of impaired and preserved performance that undermine this distinction. We consider this evidence and discuss its implications for theories of knowledge representation.</p
Syntactic mediation is not obligatory during lexical access: evidence from a single-case study of Welsh Aphasia
No full textCurrent models of word production assume the existence of functionally distinct lexical-syntactic and word-form representations. However, there are competing hypotheses about whether prior access to syntactic properties of words is obligatory during lexical retrieval. In this paper we report preliminary evidence from the single case study of a Welsh-speaking patient with a lexical access deficit. We examined the patient’s ability to access word forms and to retrieve information about the grammatical gender of Welsh nouns. The data show no correlation between the retrieval of word-form and grammatical gender information. This pattern of performance is inconsistent with hypotheses postulating obligatory syntactic mediation in lexical production.<br/
FIGURE 5 in The Kiandra leek orchid is the previously presumed extinct mignonette leek orchid (Orchidaceae; Orchidoideae): evidence from morphological comparisons
No full textFIGURE 5. Photo of a Prasophyllum retroflexum flower that has been stored in 80% ethanol.Published as part of Ayre, Bronwyn M., Hayashi, Tobias, Phillips, Ryan D. & Reiter, Noushka, 2021, The Kiandra leek orchid is the previously presumed extinct mignonette leek orchid (Orchidaceae; Orchidoideae): evidence from morphological comparisons, pp. 71-83 in Phytotaxa 528 (2) on page 77, DOI: 10.11646/phytotaxa.528.2.1, http://zenodo.org/record/577866
Anisotropic Superhydrophobic Properties Replicated from Leek Leaves
No full textPublisher Copyright: © 2024 The Author(s). Small published by Wiley-VCH GmbH.A bio-inspired approach to fabricate robust superhydrophobic (SHB) surfaces with anisotropic properties replicated from a leek leaf is presented. The polydimethylsiloxane (PDMS) replica surfaces exhibit anisotropic wetting, anti-icing, and light scattering properties due to microgrooves replicated from leek leaves. Superhydrophobicity is achieved by a novel modified candle soot (CS) coating that mimics leek's epicuticular wax. The resulting surfaces show a contact angle (CA) difference of ≈30° in the directions perpendicular and parallel to the grooves, which is similar to the anisotropic properties of the original leek leaf. The coated replica is durable, withstanding cyclic bending tests (up to 10 000 cycles) and mechanical sand abrasion (up to 60 g of sand). The coated replica shows low ice adhesion (10 kPa) after the first cycle; and then, increases to ≈70 kPa after ten icing–shearing cycles; while, anisotropy in ice adhesion becomes more evident with more cycles. In addition, the candle soot-coated positive replica (CS-coated PR) demonstrates a transmittance of ≈73% and a haze of ≈65% at the wavelength of 550 nm. The results show that the properties depend on the replicated surface features of the leek leaf, which means that the leek leaf appears to be a highly useful template for bioinspired surfaces.Peer reviewe
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