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Institution

University of Bedfordshire

EducationLuton, Bedford, United Kingdom
About: University of Bedfordshire is a education organization based out in Luton, Bedford, United Kingdom. It is known for research contribution in the topics: Population & Social work. The organization has 3860 authors who have published 6079 publications receiving 143448 citations. The organization is also known as: University of Luton.


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Journal ArticleDOI
TL;DR: Surprisingly, GCF:serum ratios of IgG subclasses did not change significantly over the course of the investigation, and the robustness of the levels of these components may be due to inflammation associated with the healing process, or to a further plaque induced response.
Abstract: Determination of the presence of inflammatory products found in gingival crevicular fluid (GCF) may be of value in evaluating both periodontal disease status and the outcome of therapy. Immunoglobulin G subclasses 1 through 4 (IgGs), interleukin 1-β (IL-1β), and Prostaglandin E2 (PGE2) have all been shown to be present in GCF. This study monitored IgGs, IL-1β, and PGE2 in GCF of 18 adult patients as they progressed through periodontal treatment toward maintenance therapy. Sites were selected from the most severely affected sextant as determined by probeable crevice depth (PD) at initial examination (IE). GCF was collected on four occasions: initial examination; 4 weeks after completion of initial therapy (oral hygiene counseling, and scaling and root planing); 3 months after completion of surgery; and 7 to 9 months later at a maintenance visit. All variables were reduced to binary form (positive or negative), and break points chosen to separate the approximately symmetrical bellshaped areas (negatives) fr...

53 citations

Journal ArticleDOI
TL;DR: In this paper, the authors used the principle of controlled nucleation and growth on a biopolymer (pectin) substrate, where hollow shells of calcium carbonate were formed in certain reaction conditions that were generally more perfect at lower reactant concentrations.
Abstract: Directed crystallization is found in many natural systems, where the inorganic material provides the organism with superior barrier and mechanical properties. Using this principle of controlled nucleation and growth on a biopolymer (pectin) substrate, hollow shells of calcium carbonate were formed in certain reaction conditions that were generally more perfect at lower reactant concentrations. The nucleation mechanism required the presence of calcium-binding acidic groups on the biopolymer. These served to initially gel the biopolymer, thus providing the template upon which crystallization could occur, and then provided the calcium-rich sites at the template surface that promoted crystallization. The propensity of the system to crystallize on the gel particle surface thereby led to the formation of a complete shell of calcium carbonate, in the form of calcite, which in certain conditions was shown to effectively encapsulate small molecular weight hydrophilic species such as sodium chloride. Importantly, h...

53 citations

Journal ArticleDOI
01 Nov 1991-Geology
TL;DR: In this paper, it is suggested that the migration direction of sand waves in these pyroclastic-surge deposits is controlled by the flow regime of the surge cloud rather than the temperature and/or moisture content.
Abstract: Sand-wave structures of both progressive (downstream migrating) and regressive (upstream migrating) types occur within the same pyroclastic-surge deposit at both Roccamonfina volcano (southern Italy) and Sugarloaf Mountain (Arizona, United States). Both "wet" and "dry" surge deposits are described that contain examples of regressive and progressive sandwave structures. At Sugarloaf Mountain progressive and regressive sand waves occur within metres of each other within the same bedset, indicating that penecontemporaneous deposition of the two different sand-wave structures occurred in close proximity. On the basis of this evidence it is suggested that the migration direction of sand waves in these pyroclastic-surge deposits is controlled by the flow regime of the surge cloud rather than the temperature and/or moisture content.

53 citations

Journal ArticleDOI
TL;DR: Drop jumping tasks detected larger Kvert asymmetry than hopping, suggesting that asymmetries may be expressed to a greater extent in acyclic, maximal performance tasks.
Abstract: Whilst the measurement and quantification of vertical leg stiffness (Kvert) asymmetry is of important practical relevance to athletic performance, literature investigating bilateral asymmetry in Kvert is limited. Moreover, how the type of task used to assess Kvert may affect the expression of asymmetry has not been properly determined. Twelve healthy males performed three types of performance tasks on a dual force plate system to determine Kvert asymmetries; the tasks were (a) bilateral hopping, (b) bilateral drop jumping and (c) unilateral drop jumping. Across all the three methods, Kvert was significantly different between compliant and stiff limbs (P < 0.001) with a significant interaction effect between limb and method (P = 0.005). Differences in Kvert between compliant and stiff limbs were −5.3% (P < 0.001), −21.8% (P = 0.007) and −15.1% (P < 0.001) for the bilateral hopping, bilateral drop jumping and unilateral drop jumping methods, respectively. All the three methods were able to detect si...

53 citations


Authors

Showing all 3892 results

NameH-indexPapersCitations
Jie Zhang1784857221720
Oscar H. Franco11182266649
Timothy J. Foster9842032338
Christopher P. Denton9567542040
Ian Kimber9162028629
Michael J. Gidley8642024313
David Carling8618645066
Anthony Turner7948924734
Rhys E. Green7828530428
Vijay Kumar Thakur7437517719
Dave J. Adams7328319526
Naresh Magan7240017511
Aedin Cassidy7021817788
David A. Basketter7032516639
Richard C. Strange6724917805
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20236
202248
2021345
2020363
2019323
2018329