scholarly journals Background Adjustment and Saturation Enhancement in Ancient Chinese Paintings

2006 ◽  
Vol 15 (10) ◽  
pp. 3230-3234 ◽  
Author(s):  
S. Pei ◽  
Y. Chiu
Keyword(s):  
Background Adjustment

scholarly journals Background Adjustment for DNA Microarrays Using a Database of Microarray Experiments

2009 ◽  
Vol 16 (11) ◽  
pp. 1501-1515 ◽  
Author(s):  
Yunxia Sui ◽  
Xiaoyue Zhao ◽  
Terence P. Speed ◽  
Zhijin Wu
Keyword(s):  
Dna Microarrays ◽  
Microarray Experiments ◽  
Background Adjustment

scholarly journals A Model-Based Background Adjustment for Oligonucleotide Expression Arrays

2004 ◽  
Vol 99 (468) ◽  
pp. 909-917 ◽  
Author(s):  
Zhijin Wu ◽  
Rafael A Irizarry ◽  
Robert Gentleman ◽  
Francisco Martinez-Murillo ◽  
Forrest Spencer
Keyword(s):  
Expression Arrays ◽  
Model Based ◽  
Background Adjustment

scholarly journals Adjustment Disorder and Suicidal Behaviours Presenting in the General Medical Setting: A Systematic Review

2019 ◽  
Vol 16 (16) ◽  
pp. 2967 ◽  
Author(s):  
Joanne Fegan ◽  
Anne M. Doherty
Keyword(s):  
Suicidal Ideation ◽  
Strong Association ◽  
Treatment Strategies ◽  
Adjustment Disorder ◽  
Evidence Base ◽  
Medical Setting ◽  
Liaison Psychiatry ◽  
Background Adjustment ◽  
High Prevalence ◽  
Self Harm

Background: Adjustment disorder (AD) is a condition commonly encountered by clinicians in emergency departments and liaison psychiatry settings and has been frequently reported among patients presenting with suicidal behaviours. A number of previous studies have noted the strong association between suicidal ideation and behaviours, and AD. In this paper, we aimed to explore this relationship, by establishing the incidence of AD in patients who present with self-harm and suicidal ideation, and the rates of self-harm among patients with a diagnosis of AD. Methods: We conducted a review of the literature of well-established databases using specific key words then synthesised the results into a descriptive narrative as well as representing it in table form. Results: Sample sizes and study methods varied significantly across the review. A majority of studies were retrospective chart-based reviews, and only three used structured diagnostic instruments. A high prevalence of AD (ranging from 9.8 to 100%) was found, with self-poisoning representing the most common form of suicide attempt in the majority of studies. Interpersonal difficulties were the main precipitant in studies which examined this. Conclusions: This study suggests there is a strong association between AD and suicidal behaviours. Given the paucity of research in the area, there is a need to build the evidence base for effective treatment strategies.

Bone Mass Determination from Microradiographs by Computer-Assisted Videodensitometry

1988 ◽  
Vol 29 (4) ◽  
pp. 465-472 ◽  
Author(s):  
K.-G. Strid ◽  
P. Kälebo
Keyword(s):  
Computer Assisted ◽  
Density Profiles ◽  
Television Camera ◽  
Background Adjustment ◽  
Error Coefficient ◽  
Image Area ◽  
Equivalent Mass ◽  
Computer Based ◽  
The Common ◽  
Tissue Specimens

The mass of hard-tissue specimens is assessed by optimised microradiography followed by computer-assisted videodensitometry. Radiographs are produced with 27 kV roentgen radiation, filtered through 0.5 to 1 mm of aluminium, on high-resolution glass plates. Aluminium step wedges are used for density calibration, the result being expressed as ‘aluminium equivalent mass’. The plates are subjected to digital image analysis by an operator in interaction with a computer-based image processor, a television camera being used for image input. The program stored in the computer provides calibration of geometry and—via the stepwedge images—of densitometry, background adjustment, etc. Measurement takes place by integration over the specimen-image area. No assumptions being needed concerning a specific attenuation model, the errors stemming from the common presumption of exponential attenuation are eliminated. Density profiles or maps of mass distribution are readily obtained from the computer. From measurements of aluminium phantom samples, the total random error (coefficient of variation) was determined at 1.8 per cent, the microradiographic and videodensitometric procedures contributing 1.6 per cent and 0.9 per cent, respectively, whereas the systematic error was negligible. Since specimens need not be sectioned, this method does not interfere with subsequent histologic preparation.

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