Performance Improvements To The UK Class II Common Modules Thermal Imager

1985 ◽  
Author(s):  
D. A. Smith ◽  
S. P. Braim ◽  
A. P. Campbell
Keyword(s):  
Class Ii ◽  
Thermal Imager ◽  
Performance Improvements ◽  
The Uk

The twin-block appliance for correction of class II division 1 malocclusion

Dental Update ◽  
2021 ◽  
Vol 48 (7) ◽  
pp. 579-583
Author(s):  
Erfan Salloum ◽  
Declan T Millett ◽  
Grant T McIntyre
Keyword(s):  
Treatment Outcome ◽  
Children And Adolescents ◽  
Clinical Management ◽  
Class Ii ◽  
Functional Appliance ◽  
Twin Block ◽  
Division 1 ◽  
Case Assessment ◽  
The Uk ◽  
Class Ii Division 1

The twin-block appliance is a widely used functional appliance for the correction of Class II division 1 malocclusion in growing children and adolescents. This article outlines the indications and case assessment, the steps in clinical management and appliance design. Evidence regarding the mode of action, effects and prediction of treatment outcome of the twin-block appliance for Class II division 1 malocclusion are also presented. CPD/Clinical Relevance: The twin-block appliance is a widely used functional appliance in the UK for the correction of Class II division 1 malocclusion in growing children and adolescents.

scholarly journals Dog leucocyte antigen (DLA) class II haplotypes and risk of canine diabetes mellitus in specific dog breeds

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
A. L. Denyer ◽  
J. P. Massey ◽  
L. J. Davison ◽  
W. E. R. Ollier ◽  
B. Catchpole ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Pancreatic Beta Cells ◽  
Allelic Variation ◽  
Class Ii ◽  
Data Set ◽  
Immune Mediated ◽  
Diabetic Dogs ◽  
Canine Diabetes Mellitus ◽  
The Uk ◽  
Diabetes Register

Abstract Background Canine diabetes mellitus (DM) is a common endocrine disease in domestic dogs. A number of pathological mechanisms are thought to contribute to the aetiopathogenesis of relative or absolute insulin deficiency, including immune-mediated destruction of pancreatic beta cells. DM risk varies considerably between different dog breeds, suggesting that genetic factors are involved and contribute susceptibility or protection. Associations of particular dog leucocyte antigen (DLA) class II haplotypes with DM have been identified, but investigations to date have only considered all breeds pooled together. The aim of this study was to analyse an expanded data set so as to identify breed-specific diabetes-associated DLA haplotypes. Methods The 12 most highly represented breeds in the UK Canine Diabetes Register were selected for study. DLA-typing data from 646 diabetic dogs and 912 breed-matched non-diabetic controls were analysed to enable breed-specific analysis of the DLA. Dogs were genotyped for allelic variation at DLA-DRB1, -DQA1, -DQB1 loci using DNA sequence-based typing. Genotypes from all three loci were combined to reveal three-locus DLA class II haplotypes, which were evaluated for statistical associations with DM. This was performed for each breed individually and for all breeds pooled together. Results Five dog breeds were identified as having one or more DLA haplotype associated with DM susceptibility or protection. Four DM-associated haplotypes were identified in the Cocker Spaniel breed, of which one haplotype was shared with Border Terriers. In the three breeds known to be at highest risk of DM included in the study (Samoyed, Tibetan Terrier and Cairn Terrier), no DLA haplotypes were found to be associated with DM. Conclusions Novel DLA associations with DM in specific dog breeds provide further evidence that immune response genes contribute susceptibility to this disease in some cases. It is also apparent that DLA may not be contributing obvious or strong risk for DM in some breeds, including the seven breeds analysed for which no associations were identified.

Application of Thermochromic Liquid Crystal to Rotating Surfaces

1998 ◽  
Vol 120 (1) ◽  
pp. 100-103 ◽  
Author(s):  
C. Camci ◽  
B. Glezer ◽  
J. M. Owen ◽  
R. G. Pilbrow ◽  
B. J. Syson
Keyword(s):  
Liquid Crystal ◽  
Surface Temperature ◽  
Rotational Speed ◽  
Narrow Band ◽  
Wide Band ◽  
Thermal Imager ◽  
Thermochromic Liquid Crystal ◽  
Rotating Disks ◽  
The Usa ◽  
The Uk

Encapsulated thermochromic liquid crystal (TLC) can be used to measure the surface temperature of stationary or rotating bodies. However, some research workers have reported a “rotational shift”: When the temperature of a rotating body is measured by thermocouples and TLC, there is a difference between the two sets of temperatures, and this difference increases with increasing rotational speed. Two research groups (Camci and Glezer in the USA, and Owen, Pilbrow, and Syson in the UK) have independently examined the effect of speed on TLC applied to the surfaces of rotating disks. The USA group used narrow-band TLC on a disk of 305 mm diameter rotating up to 7500 rpm measuring the surface temperature using an infrared (IR) sensor. The UK group used wide-band TLC on a disk of 580 mm diameter rotating up to 7000 rpm, measuring the temperature with an IR thermal imager. Both groups used the so-called hue technique to evaluate the temperature of the TLC and concluded that, even for centripetal accelerations in excess of 104 g, there is no significant effect of rotational speed on either narrow-band or wide-band TLC. It is suggested that the “rotational shift” observed by some researchers was probably caused by thermal-disturbance errors, which affected the thermocouples, rather than by changes in the TLC.

scholarly journals Improving daytime detection of deer for surveillance and management

2019 ◽  
Vol 65 (6) ◽  
Author(s):  
Thomas W. Logan ◽  
Adham Ashton-Butt ◽  
Alastair I. Ward
Keyword(s):  
Detection Probability ◽  
Red Deer ◽  
The Other ◽  
Thermal Imager ◽  
Potential Utility ◽  
Target Species ◽  
Thermal Imagers ◽  
The Hours ◽  
Survey Results ◽  
The Uk

Abstract Maximising the detection of a target species reduces the uncertainty of survey results and can improve management outcomes. Deer (Cervidae) populations are managed worldwide due to their impacts on anthropocentric interests. In the UK, deer can only lawfully be shot during the daytime, from 1 h before sunrise to 1 h after sunset, when deer activity is at its lowest. We evaluated performance of a thermal imager relative to binoculars for their ability to detect deer during the daytime and at twilight (1 h either side of dawn and dusk). Transect surveys on Thorne Moors, UK, revealed that more roe and red deer were observed using a thermal imager than when using binoculars. More deer in much larger groups were observed at twilight than during the other daylight hours. Variation in animal detectability at different times of the day must be considered during wildlife surveys if their outputs are to be as accurate and precise as possible. The results support the continued focus of deer culling efforts during the hours of twilight. They also highlight the potential utility of thermal imagers for maximising detection probability at twilight.

scholarly journals Application of Thermochromic Liquid Crystal to Rotating Surfaces

1996 ◽  
Author(s):  
C. Camci ◽  
G. Glezer ◽  
J. M. Owen ◽  
R. G. Pilbrow ◽  
B. J. Syson
Keyword(s):  
Liquid Crystal ◽  
Surface Temperature ◽  
Rotational Speed ◽  
Narrow Band ◽  
Wide Band ◽  
Thermal Imager ◽  
Thermochromic Liquid Crystal ◽  
Rotating Disks ◽  
The Usa ◽  
The Uk

Encapsulated thermochromic liquid crystal (TLC) can be used to measure the surface temperature of stationary or rotating bodies. However, some research workers have reported a “rotational shift”; when the temperature of a rotating body is measured by thermocouples and TLC, there is a difference between the two sets of temperatures, and this difference increases with increasing rotational speed. Two research groups (Camci and Glezer in the USA, and Owen, Pilbrow and Syson in the UK) have independently examined the effect of speed on TLC applied to the surfaces of rotating disks. The USA group used narrow-band TLC on a disk of 305-mm diameter rotating up to 7500 rev/min, measuring the surface temperature using an infra-red (IR) sensor. The UK group used wide-band TLC on a disk of 580-mm diameter rotating up to 7000 rev/min, measuring the temperature with an IR thermal imager. Both groups used the so-called hue technique to evaluate the temperature of the TLC and concluded that, even for centripetal accelerations in excess of 104g, there is no significant effect of rotational speed on either narrow-band or wide-band TLC. It is suggested that the “rotational shift” observed by some researchers was probably caused by thermal-disturbance errors, which affected the thermocouples, rather than by changes in the TLC.

Electron microscopy analysis of degenerating pancreatic ß cells in transgenic mice expressing the MHC Class I antigen Dd

1990 ◽  
Vol 48 (3) ◽  
pp. 548-549
Author(s):  
T. A. Stewart ◽  
D. Liggitt ◽  
S. Pitts ◽  
L. Martin ◽  
M. Siegel ◽  
...  
Keyword(s):  
Type I Diabetes ◽  
Disease Process ◽  
Class Ii ◽  
Class I ◽  
Type I ◽  
Aberrant Expression ◽  
Mhc Molecules ◽  
Endogenous Insulin ◽  
Class Ii Mhc ◽  
Ifn Γ

Insulin-dependant (Type I) diabetes mellitus (IDDM) is a metabolic disorder resulting from the lack of endogenous insulin secretion. The disease is thought to result from the autoimmune mediated destruction of the insulin producing ß cells within the islets of Langerhans. The disease process is probably triggered by environmental agents, e.g. virus or chemical toxins on a background of genetic susceptibility associated with particular alleles within the major histocompatiblity complex (MHC). The relation between IDDM and the MHC locus has been reinforced by the demonstration of both class I and class II MHC proteins on the surface of ß cells from newly diagnosed patients as well as mounting evidence that IDDM has an autoimmune pathogenesis. In 1984, a series of observations were used to advance a hypothesis, in which it was suggested that aberrant expression of class II MHC molecules, perhaps induced by gamma-interferon (IFN γ) could present self antigens and initiate an autoimmune disease. We have tested some aspects of this model and demonstrated that expression of IFN γ by pancreatic ß cells can initiate an inflammatory destruction of both the islets and pancreas and does lead to IDDM.

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