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A Site-Specific Index Based on Weathering Forms Visible in Central Oxford, UK  [PDF]
Mary J. Thornbush
Geosciences , 2012, DOI: 10.3390/geosciences2040277
Abstract: The authenticity of much of the stone-work along Queen’s Lane in central Oxford, UK presented an opportunity to produce a photographic survey from which a weathering index could be established. This represents a site-specific approach to devising a weathering form. Because it is photo-based, weathering forms are visible for comparison and classification purposes across disciplines. Limestone pertaining to building ashlar and plinths along this roadway, which mainly belong to Queen’s College, St Edmund Hall, New College, and Hertford College, was classified according to this newly introduced weathering index, the size-extent (S-E) index, through consideration of type, size, extent, impact, and trigger. This size- (range) and extent-based classification system enables for the assessment of weathering forms of various types, including soiling and decay features as well as those potentially expected in the presence of vegetation and animals. Weathering forms of a range of sizes were present, with a slightly greater abundance of small types (mm-cm in the micro- to mesoscale) and more discrete types with a low extent. For this location in central Oxford, chemical weathering was found to be the predominant type of soiling and decay.
Diversity and Distribution of Climbing Plants in a Semi-Deciduous Rain Forest, KNUST Botanic Garden, Ghana  [PDF]
Patrick Addo-Fordjour,Alexander Kofi Anning,Emmanuel Amaniampong Atakora,Patricia Serwaa Agyei
International Journal of Botany , 2008,
Abstract: The diversity and distribution of climbing plants were investigated in two 1-ha plots in the KNUST botanic garden. Each plot was divided into sixteen 25x25 m quadrats and all trees and shrubs ≥10 cm dbh were enumerated in each quadrat. All vines on tree species were identified and counted while all lianas ≥1.5 cm were enumerated. The mechanisms of climbing of the climbers were studied. A total of 951 climbing plants belonging to 82 species, 49 genera and 26 families were identified. These consisted of 72 liana and 10 vine species. Seven hundred and sixteen trees belonging to 77 species and 27 families hosted the climbers. Climbing plants made up of about 43% of all the species (except herbs) identified. Lianas alone constituted about 38% of the woody species. The commonest and most dominant species were Strophantus barteri Franch., Smilax species and Griffonia simplicifolia (Vahl ex DC.) Baillon. Most of the climber species showed clumped distribution. Stem twinning was the most predominant climbing mechanism. The number of climbers using the different climbing mechanisms differed significantly (p<0.001). Host species, habitat and their interaction had significant (p<0.001) effects on climber density.
Sixth International Workshop on Scleroderma Research, Oxford, UK, 30 July–2 August 2000
Frank A Wollheim, Christopher P Denton, David J Abraham
Arthritis Research & Therapy , 2000, DOI: 10.1186/ar137
Abstract: Some 200 scientists and clinicians gathered at Keble College in Oxford, UK from 30th July to 2nd August for this biennial meeting, which has grown immensely both in size and quality of research presentations. The college, built in the holy zebra style (1870), and the adjacent famous university natural history museum formed a most charming environment for the meeting. The conference was organized and co-chaired by Carol M Black (Royal Free Hospital, London, UK) and Joseph H Korn (Boston University School of Medicine, Boston, MA, USA). Plans are to arrange the next meeting in the Boston area in the summer of 2002.Fiona Brew (Cambridge, UK) presented the Affymetrix Gene Chip technology, which is a powerful method allowing analysis of a large number of gene expressions from single cells. It was presented as versatile, having high sensitivity and low risk for false-positive results. It is best suited for classification of single-cell diseases such as leukemias or other malignancies, and has found clinical application in distinguishing between acute lymphoblastic and myeloid leukaemia. The price is high, however, and as Constantin Bona pointed out in the discussion there are several causes for negative results. To this Dr Brew responded that one needed only 3–5 gene copies expressed per cell.Next, David Strehlow (Boston, MA, USA) presented exciting data regarding a new genetic marker relating to scleroderma. This work utilized in parts the cDNA microarray technique above. As demonstrated by in situ hybridisation, the gene encoding the protease nexin 1 (PN1) is expressed only in scleroderma skin. Comparing cultured fibroblasts from normal, lesional, and nonlesional scleroderma skin, it was found that mRNA as well as protein secretion was 3–5 times higher in scleroderma. A search for other overexpressed genes by the microarray chip technique revealed overexpression of heat shock protein 90 (HSP90), a chaperon found in complex with other HSPs. HSP90 is essential for steroid
A COMPARATIVE ANATOMICAL STUDY OF THE STEMS OF CLIMBING PLANTS FROM THE FOREST REMNANTS OF MARINGA, BRAZIL
Lopes,Willian A. L.; Souza,Luiz A; Moscheta,Ismar M; Albiero,Adriana L. M; Mour?o,Káthia S. M;
Gayana. Botánica , 2008, DOI: 10.4067/S0717-66432008000100005
Abstract: climbing plants differ from self-supporting plants, such as shrubs and trees, in a range of characteristics, most notable are the mechanical properties of the stem. liana stems as pereskia aculeata mill. (cactaceae), pisonia aculeata l. (nyctaginaceae), arrabidaea mutabilis bureau et k.schum. (bignoniaceae), dalechampia stipulacea müll.arg. (euphorbiaceae) and dicella nucifera chodat (malpighiaceae) were collected in brazilian forest remnants. the objective of this paper is: a) to analyze the comparative stem structure of these species; b) to answer the inquiry whether these species present cambial variants or not and to verify the modes of cambial activities, and c) to contribute with the anatomical identification of the liana species, characterizing mainly the cambial variant types. the stems were sectioned by freehand and in rotation microtome, and stained with safranin, astra blue and toluidine blue. stem epidermis is uniseriate with tector trichomes. cortex consists of collenchyma, parenchyma and starch sheath. pereskia aculeata and pisonia aculeata have medullary collateral bundles. phellogen is subepidermic. the species present stems with cambial variants, except dalechampia stipulacea. pereskia aculeata, pisonia aculeata and dicella nucifera have included phloem in the secondary xylem. arrabidaea mutabilis presents cambial variants in four regions of the secondary vascular cylinder.
Angiosperms, Climbing plants in tropical forests of southern Eastern Ghats, Tamil Nadu, India  [PDF]
Muthumperumal, C.,Parthasarathy, N.
Check List , 2009,
Abstract: We provide a check list of angiosperm climbing plant species, along with their climbing modes, enumerated from atotal of one hundred and fifty grids in tropical forests of southern Eastern Ghats, peninsular India. The Eastern Ghatsconstitute an important biodiversity area in India and have been studied earlier mainly for the floristics, and that tooconfined to a few prioritized sites. Lianas, the woody vines contribute substantially to the diversity and structure ofmost tropical forests. Yet, little is known about the importance of habitat specialization in maintaining tropical lianadiversity. A total of 175 climbing plant species that belong to 100 genera and 40 families are included in thisenumeration.
Climbing on Pyramids  [PDF]
Jean Serra,Bangalore Ravi Kiran
Mathematics , 2012,
Abstract: A new approach is proposed for finding the "best cut" in a hierarchy of partitions by energy minimization. Said energy must be "climbing" i.e. it must be hierarchically and scale increasing. It encompasses separable energies and those composed under supremum.
Relationships between light and physiological characters of five climbing plants
五种攀缘植物光合作用与光因子关系的初步研究

HUANG Chenglin,FU Songling,LIANG Shuyun,JI Yifan,
黄成林
,傅松玲,梁淑云,纪易凡

应用生态学报 , 2004,
Abstract: Studies on the photosynthetic and respiratory rates, light utilization efficiencies and light compensations of five climbing plants showed that the diurnal variations of photosynthetic rates presented double peak, the first peak was between 10:00 to 12:00, and the second was between 14:00 to 16:00. The phenomenon of "noon break" was obvious. The diurnal variations of respiration rates also presented double peak, the first peak was between 11:00 to 13:00, and the second was between 14:00 to 17:00. The light compensation point of Hedera nepatensis, H. helix, Parthenocissus tricuspidata, P. quinuefolia and Wisteria sinensis was 5.73, 5.07, 9.96, 6.40 and 18.93 micromol x m(-2) x s(-1), respectively, and the light utilization efficiency of W. sinensis was higher under strong light, P. quinuefolia was the second, but that of H. helix was higher under weak light. The results showed that Wisteria sinensis was a typical heliophytic plant, Parthenocissus tricuspidata and P. quinuefolia were neuter plants, and Hedera nepalensis and H. helix were typical sciophytic plants.
A COMPARATIVE ANATOMICAL STUDY OF THE STEMS OF CLIMBING PLANTS FROM THE FOREST REMNANTS OF MARINGA, BRAZIL ESTUDIO ANATOMICO COMPARATIVO DE LOS TALLOS DE PLANTAS TREPADORAS DE LOS REMANENTES FORESTALES DE MARINGA, BRASIL  [cached]
Willian A. L. Lopes,Luiz A Souza,Ismar M Moscheta,Adriana L. M Albiero
Gayana. Botanica , 2008,
Abstract: Climbing plants differ from self-supporting plants, such as shrubs and trees, in a range of characteristics, most notable are the mechanical properties of the stem. Liana stems as Pereskia aculeata Mill. (Cactaceae), Pisonia aculeata L. (Nyctaginaceae), Arrabidaea mutabilis Bureau et K.Schum. (Bignoniaceae), Dalechampia stipulacea Müll.Arg. (Euphorbiaceae) and Dicella nucifera Chodat (Malpighiaceae) were collected in Brazilian forest remnants. The objective of this paper is: a) to analyze the comparative stem structure of these species; b) to answer the inquiry whether these species present cambial variants or not and to verify the modes of cambial activities, and c) to contribute with the anatomical identification of the liana species, characterizing mainly the cambial variant types. The stems were sectioned by freehand and in rotation microtome, and stained with safranin, astra blue and toluidine blue. Stem epidermis is uniseriate with tector trichomes. Cortex consists of collenchyma, parenchyma and starch sheath. Pereskia aculeata and Pisonia aculeata have medullary collateral bundles. Phellogen is subepidermic. The species present stems with cambial variants, except Dalechampia stipulacea. Pereskia aculeata, Pisonia aculeata and Dicella nucifera have included phloem in the secondary xylem. Arrabidaea mutabilis presents cambial variants in four regions of the secondary vascular cylinder. Las plantas trepadoras difieren de las que se autosoportan, como los arbustos y árboles, en un rango de características, las más notables son las propiedades mecánicas del tallo. Los tallos de lianas como Pereskia aculeata Mill. (Cactaceae), Pisonia aculeata L. (Nyctaginaceae), Arrabidaea mutabilis Bureau et K.Schum. (Bignoniaceae), Dalechampia stipulacea Müll.Arg. (Euphorbiaceae) y Dicella nucifera Chodat (Malpighiaceae) fueron recolectados en los remanentes forestales brasile os. El objetivo de este trabajo es: a) analizar la estructura comparativa del tallo de estas especies; b) responder la pregunta si estas especies presentan variantes del cambium o no y verificar los modos de actividades del cambium, y c) contribuir con la identificación anatómica de las especies del lianas, caracterizando principalmente los tipos de variantes del cambium. Los tallos fueron cortados a mano y en el micrótomo de rotación y coloreado con safranina, azul de astra y azul de toluidina. La epidermis del tallo es uniseriada con tricomas tectores. La corteza contiene parénquima, colénquima y vaina amilífera. Pereskia aculeata y Pisonia aculeata tienen haces medulares colaterales. El fel
Jan Olof Bengtsson, The Worldview of Personalism (Oxford: Oxford University Press, 2006)  [cached]
Garrett Barden
Nordicum-Mediterraneum , 2010,
Abstract: A review of Jan Olof Bengtsson, The Worldview of Personalism (Oxford: Oxford University Press, 2006)
An Interview with Professor Nabeel Hamdi, Oxford Brookes University, Oxford UK on  [PDF]
Umut TOKER,Zeynep TOKER
Middle East Technical University Journal of the Faculty of Architecture , 2006,
Abstract:
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