scholarly journals The Australian Census Longitudinal Dataset 2006-2016: A Multi-Wave Approach to Maintaining a Longitudinal Dataset

Author(s):  
Bindi Kindermann ◽  
Theresa Nunan ◽  
Sarah Hinde ◽  
James Chipperfield

ABSTRACT ObjectivesThe Australian Census Longitudinal Dataset (ACLD) is a nationally representative longitudinal dataset increasingly used to study Australian social and economic transitions. The ACLD will become an even more powerful resource when it is extended to include linked records from the 2016 Australian Census of Population and Housing. The ACLD 2006-2011 dataset consists of a 5% representative sample of 2006 Census records and the linked 2011 Census records, and has been a well-received product in Australia as our first longitudinal Census dataset. In the process of extending the dataset to include linked records from the 2016 Census, we are aiming to improve the dataset by addressing issues such as linkage error and the under representation of specific population groups, while also taking advantage of recent changes in data linking methodology and policy that enable us to conduct better quality linking. ApproachA multi-wave framework will be implemented for maintaining and improving the ACLD sample (as an alternative to the popular top-up sampling approach). Under the multi-wave framework, a sample is selected from each Census and is the beginning of a new wave of the ACLD, to be linked to each following Census. Allowing the sample selection method to be different for each wave enables us to apply learnings from previous waves to selecting a better sample for the next. For example, we could design the 2011 Wave sample to over sample certain population groups which were under represented in the 2006-2011 linked sample. We could also adjust the sample size, or change the method of sample selection in reaction to changing data item response rates. ResultsInitial analysis suggests the multi-wave approach will enable high quality analysis of transitions in hard to link and previously under represented population groups between 2011 and 2016. While these improvements cannot be retrospectively applied to the sample selected for the 2006 Wave, the linking strategy will also enable unbiased analysis of the Australian longitudinal population from 2006 to 2016. ConclusionThe application of the multi-wave framework will enable the production of a high quality ACLD 2006-2016 product with minimal bias and improved sample representativeness, which can be used to explore changes in Australian society between the 2006, 2011 and 2016 Censuses. The flexibility of the multi-wave framework will allow continued improvement to the form and function of the ACLD in future waves.

2020 ◽  
Vol 64 (2) ◽  
pp. 20503-1-20503-5
Author(s):  
Faiz Wali ◽  
Shenghao Wang ◽  
Ji Li ◽  
Jianheng Huang ◽  
Yaohu Lei ◽  
...  

Abstract Grating-based x-ray phase-contrast imaging has the potential to enhance image quality and provide inner structure details non-destructively. In this work, using grating-based x-ray phase-contrast imaging system and employing integrating-bucket method, the quantitative expressions of signal-to-noise ratios due to photon statistics and mechanical error are analyzed in detail. Photon statistical noise and mechanical error are the main sources affecting the image noise in x-ray grating interferometry. Integrating-bucket method is a new phase extraction method translated to x-ray grating interferometry; hence, its image quality analysis would be of great importance to get high-quality phase image. The authors’ conclusions provide an alternate method to get high-quality refraction signal using grating interferometer, and hence increases applicability of grating interferometry in preclinical and clinical usage.


Author(s):  
Murat Anıl Mercan ◽  
Hande Barlin

Social scientists have been intrigued by the relationship between generations based on different characteristics. Economists, has been especially interested in measuring intergenerational income elasticity, which looks at the relationship of parents and that of their children when they become adults and gives clue on trends of income inequality. Most of the literature concentrates on the experiences of developed countries and measurement issues. Nevertheless, new studies concerning intergenerational income elasticity is being undertaken in developing countries as the data become increasingly available for these countries. In this vein, there is only one previous study that investigates intergenerational income elasticity for Turkey. Mercan (2012) finds that intergenerational income elasticity is around 0.1 in Turkey, which depicts Turkey as a highly mobile country meaning that children of poor parents have a higher likelihood to have a better income status. However, his study does not depend on a longitudinal dataset, which might make Mercan’s (2012) estimate biased. Following Solon (1992) in using OLS for lower bound and instrumental variable (IV) for upper bound, this study puts forth a new estimate, which relies on a nationally representative and longitudinal dataset for Turkey. The study's estimate for intergenerational income elasticity varies between 0.3 and 0.6, which is much higher than the result of Mercan (2012), indicating that Turkey is a less mobile country than previously foreseen.


2013 ◽  
Vol 19 (S2) ◽  
pp. 1312-1313
Author(s):  
A. Hyde ◽  
J. Goulden ◽  
N. Rowlands ◽  
S. Ubhi

Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.


2015 ◽  
Vol 1 (1) ◽  
pp. 224-227 ◽  
Author(s):  
Veit Wiesmann ◽  
Dorothea Reimer ◽  
Daniela Franz ◽  
Hanna Hüttmayer ◽  
Dirk Mielenz ◽  
...  

AbstractAutomated image processing methods enable objective, reproducible and high quality analysis of fluorescent cell images in a reasonable amount of time. Therefore, we propose the application of image processing pipelines based on established segmentation algorithms which can handle massive amounts of whole slide imaging data of multiple fluorescent labeled cells. After automated parameter adaption the segmentation pipelines provide high quality cell delineations revealing significant differences in the spreading of B cells: LPS-activated B cells spread significantly less on anti CD19 mAb than on anti BCR mAb and both processes could be inhibited by the F-actin destabilizing drug Cytochalasin D. Moreover, anti CD19 mAb induce a more symmetrical spreading than anti BCR mAb as reflected by the higher cell circularity.


2020 ◽  
Vol 10 (4) ◽  
pp. 167
Author(s):  
Kenneth P.H. Pritzker

The heterogeneity of colon cancers and their reactions presents both a challenge and promise for personalized medicine. The challenge is to develop effective biologically personalized therapeutics guided by predictive and prognostic biomarkers. Presently, there are several classes of candidate biomarkers, including genomic probes, inhibitory RNAs, assays for immunity dysfunction and, not to be forgotten, specific histopathologic and histochemical features. To develop effective therapeutics, candidate biomarkers must be qualified and validated in comparable independent cohorts, no small undertaking. This process and subsequent deployment in clinical practice involves not only the strong association of the biomarker with the treatment but also careful attention to the prosaic aspects of representative tumor site selection, obtaining a fully adequate sample which is preserved and prepared to optimize high quality analysis. In the future, the clinical utility of biomarker analytical results will benefit from associated clinical and basic science data with the assistance of artificial intelligence techniques. By application of an individualized, selected suite of biomarkers, comprehensively interpreted, individualized, more effective and less toxic therapy for colon cancer will be enabled, thereby fulfilling the promise of personalized medicine.


sportlogia ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 48-66
Author(s):  
Borko Katanić ◽  
◽  
Predrag Ilić ◽  
Aleksandar Stojmenović ◽  
Mima Stanković ◽  
...  

The aim of this systematic review was to indicate and discuss the use of electromyogram in football. For the literature review, following electronic databases were used: Google School, PubMed, Medline and Mendeley for the period from 2005. to 2019. 20 papers were selected for this systematic review based on the established criteria. These studies focused the most on researching the following muscles: m.musculus quadriceps, m.biceps femoris, m.gastrocnemius, m.tibalis anterior and m. gluteus maximus. The review has determined quite a heterogenic choice of topics when it comes to the use of the electromyogram (herein after referred to as: EMG) in football, so the obtained results were grouped based on the similar characteristics. Therefore, the results were categorized according to the following topics: acute effects of the specific football activity, impact of the football strength training, training of kicking on the ball, results based on the difference in sexes, while the rest of the results were sorted in the joint group. Summarizing of the obtained results provides the insight in the multiple possibility for use of EMG in football in order to develop high quality analysis of the neuro-muscle activation of a certain muscle regions of the football players.


1999 ◽  
Vol 2 (1a) ◽  
pp. 79-86 ◽  
Author(s):  
JM Kearney ◽  
MJ Kearney ◽  
S McElhone ◽  
MJ Gibney

AbstractObjectiveThe purpose of conducting this survey was to identify data on consumer attitudes towards and beliefs about physical activity, body weight and health among the 15 countries of the EU.DesignA cross-sectional study to get a picture of the attitudes to physical activity, body weight and health in the EU. For this, it was considered important that samples be nationally representative so that inferences drawn from the data could be applied to the population in each country as well as to the EU population as a whole. Using a non-probability sampling method employing quota controls (and the national weight) we obtained large sample sizes from each country which were nationally representative in terms of the variables age, sex and regional distribution. To ensure samples were truly nationally representative a national weight was used when analysing the data using the same characteristics as those used to define quotas. When examining pooled estimates for the total EU sample a population weight was applied.ResultsIn total, 15 239 subjects aged 15 years and upwards in the EU completed the survey. This article gives details on the methods used in carrying out the survey from design of the questionnaire to sample selection, questionnaire administration and analysis of the data. The methods and their limitations are discussed.


2003 ◽  
Vol 7 (4) ◽  
pp. 312-316 ◽  
Author(s):  
Aditya K. Gupta ◽  
Jennifer E. Ryder ◽  
Robyn Bluhm ◽  
Andrew Johnson ◽  
Richard C. Summerbell

Objective: The quality of original clinical trial publications pertaining to the use of oral antifungal agents to treat onychomycosis was evaluated using predetermined criteria. Methods: The list of studies included in this analysis was determined by conducting a search in Medline. For each clinical trial, two independent reviewers each determined a composite score by evaluating a list of criteria that were felt to represent a good study, for example, randomization and blinding, prior sample size calculated, and treatment regimen clearly explained. A citation count was performed to determine whether higher-quality papers were cited more often than lower-quality papers. Results: Forty-five studies were included in this quality analysis of study design. Of these, 27 were considered to be “high quality” (score greater than or equal to 11 out of 20). A significant correlation coefficient of 0.997 was found between the two reviewers ( P < 0.00001). Higher-quality papers were cited significantly more often than lower-quality papers ( P = 0.03). Conclusion: The scale that we use to evaluate the quality of onychomycosis studies has high interrater reliability. According to this scale, many published studies (18 out of 45) pertaining to treatments for onychomycosis do not meet the criteria required to be considered “high quality.”


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