Sunday, December 31, 2017

x̄ - > Study: Unemployed, uninsured less likely to receive cancer screening

Researchers say that unemployed, uninsured people are less likely to undergo routine cancer screenings -- and that these gaps decrease their long-term likelihood of staying up-to-date on routine screenings. 
Nov. 8 (UPI) -- Unemployed adults in the United States are less likely to undergo recommended cancer screening because they lack health insurance, a survey published Monday by the journal Cancer found.
More than 40% of responding adults who were unemployed reported that they did not have health insurance, compared with just 10% of those who had a job, the data showed.
Compared with those who were employed at the time of the study, fewer unemployed adults indicated they were up-to-date on recommended screening for breast, cervical, colorectal, and prostate cancers.
For example, 68% of unemployed adults had been screened for breast cancer versus 78% of those currently working, according to the researchers.
And, screening rates for colorectal cancers, including colon cancer, were lower among the unemployed, at 42%, than the employed, at 49%.
"People who were unemployed at the time of the survey were less likely to have a recent cancer screening test and they were also less likely to be up-to-date with their cancer screenings over the long term," study co-author Stacey Fedewa said in a press release.
"This suggests that being unemployed at a single point in time may hinder both recent and potentially longer-term screening practices," said Fedewa, a senior principal scientist at the American Cancer Society.
Not undergoing routine screening for cancer can increase a person's risk of being diagnosed with late-stage cancer, which is more difficult to treat than cancer that is detected at an early stage.
About 30 million people in the United States do not have health insurance, the Department of Health and Human Services estimates.
Screening guidelines differ by type of cancer.
For example, the Centers for Disease Control and Prevention recommends that adults undergo screening for colon cancer, via colonoscopy, starting between age 45 and 50.
It also advises women to get screened for cervical cancer every three years, starting in their 20s, while they should undergo mammograms between ages 50 and 74.
Prostate cancer screening recommendations are less clear.
For this study, Fedewa and her colleagues analyzed information from adults under age 65 who responded to the 2000-2018 National Health Interview Survey, a nationally representative annual survey of the United States population on health and insurance status.
Among the unemployed, 79% had been screened for cervical cancer, compared with 86% of those currently working, the data showed.
Similarly, 25% of the unemployed said they had been screened for prostate cancer, while 36% of the employed had done so.
All differences in cancer screening rates were eliminated after the researchers accounted for health insurance coverage, highlighting the importance of insurance coverage for enabling individuals to receive recommended cancer screening tests, they said.
"Our finding that insurance coverage fully accounted for unemployed adults' lower cancer screening utilization is potentially good news because it's modifiable," Fedewa said.
"When people are unemployed and have health insurance, they have screening rates that are similar to employed adults," she said.

Sunday, January 01, 2017

x̄ - > Introduction to Linear Algebra

Linear algebra is something all mathematics undergraduates and many other students, in subjects ranging from engineering to economics, have to learn. The fifth edition of this hugely successful textbook retains the quality of earlier editions while at the same time seeing numerous minor improvements and major additions. The latter includes a new chapter on singular values and singular vectors, including ways to analyze a matrix of data; a revised chapter on computing in linear algebra, with professional-level algorithms and code that can be downloaded for a variety of languages; a new section on linear algebra and cryptography; and a new chapter on linear algebra in probability and statistics. A dedicated and active website also offers solutions to exercises as well as new exercises from many different sources (e.g. practice problems, exams, development of textbook examples), plus codes in MATLAB, Julia, and Python. This fifth edition contains numerous minor improvements and major additions Provides a new chapter on singular values and singular vectors, as well as a revised chapter on computing in linear algebra A dedicated and active website offers solutions to exercises, new exercises from several sources, and codes in MATLAB, Julia, and Python Read more Customer reviews Not yet reviewed Be the first to review Review was not posted due to profanity × Product details Edition: 5th Edition Date Published: June 2021 format: Hardback ISBN: 9781733146654 length: 584 pages dimensions: 242 x 198 x 31 mm weight: 1.17kg availability: In stock Table of Contents 1. Introduction to vectors2. Solving linear equations3. Vector spaces and subspaces4. Orthogonality5. Determinants6. Eigenvalues and eigenvectors7. The singular value decomposition (SVD)8. Linear transformations9. Complex vectors and matrices10. Applications11. Numerical linear algebra12. Linear algebra in probability and statisticsMatrix factorizationsIndexSix great theorems/linear algebra in a nutshell. Author Gilbert Strang, Massachusetts Institute of TechnologyGilbert Strang is a professor of mathematics at the Massachusetts Institute of Technology, where his research focuses on analysis, linear algebra and PDEs. He is the author of many textbooks and his service to the mathematics community is extensive. He has spent time both as President of SIAM and as Chair of the Joint Policy Board for Mathematics, and has been a member of various other committees and boards. He has received several awards for his research and teaching, including the Chauvenet Prize (1976), the Award for Distinguished Service (SIAM, 2003), the Graduate School Teaching Award (Massachusetts Institute of Technology, 2003) and the Von Neumann Prize Medal (US Association for Computational Mechanics, 2005), among others. He is a Member of the National Academy of Sciences, a Fellow of the American Academy of Arts and Sciences, and an Honorary Fellow of Balliol College, Oxford.
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x̄ - > Bloomberg BS Model - King James Rodriguez Brazil 2014

Bloomberg BS Model - King James Rodriguez Brazil 2014 πŸ”Š Read ⏸ Pause ▶ Resume ⏹ Stop ⚽ The Silent Kin...

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