scholarly journals Demagnetization Analysis in Excel (DAIE). An open source workbook in Excel for viewing and analyzing demagnetization data from paleomagnetic discrete samples and u-channels

2013 ◽  
Vol 56 (1) ◽  
Author(s):  
Leonardo Sagnotti
Keyword(s):  
Principal Component Analysis ◽  
Open Source ◽  
Single Cells ◽  
Principal Component ◽  
Component Analysis ◽  
Modular Structure ◽  
Microsoft Excel ◽  
Excel File

<p>The Demagnetization Analysis in Excel (DAIE) software is a single Microsoft Excel file designed for viewing and analyzing stepwise demagnetization data of both discrete and u-channel samples in paleomagnetic studies. DAIE is an Excel workbook and has an open modular structure organized in 10 worksheets. It is designed for an easy use and an interactive operability; all the commands and choices can be entered by sliding menus associated to single cells. The standard demagnetization diagrams and various parameters of common use are shown on the same worksheet including selectable parameters and user's choices. The remanence characteristic components may be computed by principal component analysis (PCA) on a selected interval of demagnetization steps. Saving of the PCA data can be done both sample by sample, or in automatic by applying the selected choices to all the samples included in the file. The whole workbook is free both for use and editing and it is available for download on a dedicated website.</p>

scholarly journals Simultaneous quantification of multiple endogenous biothiols in single living cells by plasmonic Raman probes

2017 ◽  
Vol 8 (11) ◽  
pp. 7582-7587 ◽  
Author(s):  
Shan-Shan Li ◽  
Qi-Yuan Guan ◽  
Mengmeng Zheng ◽  
Yu-Qi Wang ◽  
Deju Ye ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Single Cells ◽  
Principal Component ◽  
Component Analysis ◽  
Living Cells ◽  
Simultaneous Quantification ◽  
Single Living Cells ◽  
Single Living

Three endogenous biothiols in single cells were simultaneously quantified by plasmonic Raman probes and quantitative principal component analysis (qPCA).

Design and Implementation of Safety Lock Based on Face Recognition

2014 ◽  
Vol 596 ◽  
pp. 346-349
Author(s):  
Chang Xing Qi ◽  
Lei Zhao ◽  
Qiao Ling Dong
Keyword(s):  
Principal Component Analysis ◽  
Face Recognition ◽  
Open Source ◽  
Principal Component ◽  
Component Analysis ◽  
Design And Implementation ◽  
Desktop Application ◽  
Encryption And Decryption ◽  
Rijndael Algorithm

This paper designed and implemented a desktop application of safety lock based on face recognition. The application is developed by C# and used open source visual library OpenCV and SQLite lightweight database. Principal component analysis (PCA) and Rijndael algorithm are respectively used in face recognition and algorithm of encryption and decryption. This paper illustrates design and implementation in detail

A German version of the Intermittent Claudication Questionnaire (ICQ): cultural adaptation and validation

VASA ◽  
2012 ◽  
Vol 41 (5) ◽  
pp. 333-342 ◽  
Author(s):  
Kirchberger ◽  
Finger ◽  
Müller-Bühl
Keyword(s):  
Principal Component Analysis ◽  
Intermittent Claudication ◽  
Completion Time ◽  
Short Form ◽  
Principal Component ◽  
Component Analysis ◽  
German Version ◽  
Average Completion Time ◽  
Sf 36 ◽  
Related Quality

Background: The Intermittent Claudication Questionnaire (ICQ) is a short questionnaire for the assessment of health-related quality of life (HRQOL) in patients with intermittent claudication (IC). The objective of this study was to translate the ICQ into German and to investigate the psychometric properties of the German ICQ version in patients with IC. Patients and methods: The original English version was translated using a forward-backward method. The resulting German version was reviewed by the author of the original version and an experienced clinician. Finally, it was tested for clarity with 5 German patients with IC. A sample of 81 patients were administered the German ICQ. The sample consisted of 58.0 % male patients with a median age of 71 years and a median IC duration of 36 months. Test of feasibility included completeness of questionnaires, completion time, and ratings of clarity, length and relevance. Reliability was assessed through a retest in 13 patients at 14 days, and analysis of Cronbach’s alpha for internal consistency. Construct validity was investigated using principal component analysis. Concurrent validity was assessed by correlating the ICQ scores with the Short Form 36 Health Survey (SF-36) as well as clinical measures. Results: The ICQ was completely filled in by 73 subjects (90.1 %) with an average completion time of 6.3 minutes. Cronbach’s alpha coefficient reached 0.75. Intra-class correlation for test-retest reliability was r = 0.88. Principal component analysis resulted in a 3 factor solution. The first factor explained 51.5 of the total variation and all items had loadings of at least 0.65 on it. The ICQ was significantly associated with the SF-36 and treadmill-walking distances whereas no association was found for resting ABPI. Conclusions: The German version of the ICQ demonstrated good feasibility, satisfactory reliability and good validity. Responsiveness should be investigated in further validation studies.

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