06 JAN 2018 by ideonexus
Health Concerns Spark Adult Interest in Science
Beginning in middle age and continuing through later adulthood, individuals are often motivated by events in their own lives or the lives of significant others to obtain health-related information.^^ Health-related concerns draw many adults into a new domain of science learning. At the same time, with retirement, older adults have more time to devote to personal interests. Their science learnmg addresses long-standing scientific interests as well as new areas of interest.^^
Adults differ fr... 1 
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notesAs do novelty, wonder, self interest, and relevance to personal.
14 MAR 2016 by ideonexus
One in 1,000 to 500 Chance of Cancer from Childhood CT Scan
The first study to assess directly the risk of cancer after CT scans in childhood found a clear dose-response relationship for both leukemia and brain tumors: risk increased with increasing cumulative radiation dose. For a cumulative dose of between 50 and 60 milligray or mGy (mGy is a unit of estimated absorbed dose of ionizing radiation) to the head, the investigators reported a threefold increase in the risk of brain tumors; the same dose to bone marrow (the part of the body responsible fo...
1 14 MAR 2016 by ideonexus
1.9 Cases of Leukemia per 10,000 CT Scans in Children
In the breakdown of results, the study authors from Group Health Research Institute and University of California, Davis note that the risk of developing leukemia was highest from head scans for kids under age 5 with a rate of 1.9 cases per 10,000 CT scans. Younger children and girls seemed more susceptible to solid cancers than older kids and boys. Every 300 to 390 scans of a girl’s abdomen or pelvis was associated with the development of one solid cancer. The study estimates that 4,870 fut...31 MAR 2015 by ideonexus
Cardiorespiratory Fitness (CRF) Lowers Cancer Risk
A well-established, graded, inverse association exists between cardiorespiratory fitness (CRF) and risk of cardiovascular disease (CVD) as well as all-cause mortality in numerous healthy and clinical adult populations.1- 3 Compared with those classified in the lowest CRF category (<7.9 metabolic equivalents [METs]), individuals in the highest CRF category (≥10.9 METs) have a 1.6- to 1.7-fold lower risk of CVD and all-cause mortality, respectively.4 Accordingly, measurement of CRF via for...
1 From Time Magazine article on the study:
Here’s the best part: it doesn’t take a lot of exercise to have a big health impact, Lakoski found. “Just a small improvement in fitness made a difference in survival of those that developed cancer,” she says. Compared to men who could run 12-minute miles on the treadmill at age 50, men who ran slightly faster 11.5-minute miles had an additional 10% decrease in cancer death and an extra 25% decrease in cardiovascular death among those who developed cancer in the study.
07 MAR 2015 by ideonexus
The History of Cancer is Long
The battle of living things against cancer began so long ago that its origin is lost in time. But it must have begun, in a natural environment, in which whatever life inhabited the earth, was subjected, for good or ill, to influences that had their origin in sun and storm and the ancient nature of the earth. Some of the elements of this environment created hazards to which life had to adjust or perish. The ultraviolet radiation in sunlight could cause malignancy. So could radiations from cert... 1 notes
notes13 MAR 2014 by ideonexus
Giordano Bruno Observations of the Sun
The meaning is the more excellence, as it is the less vulgar, and you will see that it is single, unified, and not strained. You must consider that although the sun appears different with respect to different regions of the earth according to time and place, nevertheless with respect to the entire globe it acts always and everywhere in the same way, for in whatever point of the ecliptic it may find itself, it causes winter, summer, autumn, and spring, and the entire earthly globe receives the... 1 notes
notes...and it's effects on the Earth.
24 DEC 2013 by ideonexus
Predictability and the Base Rate
Whenever a statistician wants to predict the likelihood of some event based on the available evidence, there are two main sources of information that have to be taken into account: (1) the evidence itself, for which a reliability figure has to be calculated; and (2) the likelihood of the event calculated purely in terms of relative incidence. The second figure here is the base rate. Since it is just a number, obtained by the seemingly dull process of counting, it frequently gets overlooked wh...Folksonomies: predictability
Folksonomies: predictability
1 notes
notesKeith Devlin explains why the accuracy of tests and measurments must take into account the base rate for the phenomenon.
19 DEC 2013 by ideonexus
Specialization is Differentiation
The proliferation of subcults is most evident in the world of work. Many subcults spring up
around occupational specialties. Thus, as the society moves toward greater specialization, it
generates more and more subcultural variety.
The scientific community, for example, is splitting into finer and finer fragments. It is
criss-crossed with formal organizations and associations whose specialized journals,
conferences and meetings are rapidly multiplying in number. But these "open" distinctions
... 1 notes
notesToffler explores the phenomenon of specialization in the sciences, producing subcults and subsubcults.
18 NOV 2013 by ideonexus
Declaration for the Right to Libraries
LIBRARIES CHANGE LIVES
Declaration for the Right to Libraries
In the spirit of the United States Declaration of Independence and the Universal Declaration of Human Rights, we believe that libraries are essential to a democratic society. Every day, in countless communities across our nation and the world, millions of children, students and adults use libraries to learn, grow and achieve their dreams. In addition to a vast array of books, computers and other resources, library users benefit fro... 1 notes
notesLibraries empower, ennoble, and enlighten.
13 OCT 2013 by ideonexus
The Fundamentals of Cancer
Cancer, we now know, is a disease caused by the uncontrolled growth of a single cell. This growth is unleashed by mutations—changes in DNA that specifically affect genes that incite unlimited cell growth. In a normal cell, powerful genetic circuits regulate cell division and cell death. In a cancer cell, these circuits have been broken, unleashing a cell that cannot stop growing.
That this seemingly simple mechanism—cell growth without barriers—can lie at the heart of this grotesque an... 1 notes
notesIt is a mutated cell, a renegade, the key is to keep it from mutating.
