Sentences with phrase «calendar age using»

That is identical, as it should be, to the result of direct objective Bayesian inference of calendar age using the Jeffreys» prior.

Not exact matches

Lanza suspects that the premature aging may be related to using viruses to carry the turn - back - the - calendar genes into adult cells, which is what «induces» them to act (sort of) like embryonic cells.

Data analysis was performed using Cox proportional hazard models adjusted for age, sex, calendar year, comorbidity, medical treatment, and severity of disease, and propensity - based risk - stratified models and case - crossover models.

Of course, the table, so constructed, will only give the correct calibration if the tree - ring chronology which was used to construct it had placed each ring in the true calendar year in which it grew.Measurements made using specially designed, more elaborate apparatus and more astute sampling - handling techniques have yielded radiocarbon ages for anthracite greater than 70,000 radiocarbon years, the sensitivity limit of this equipment.

Dating: Dating, in geology, determining a chronology or calendar of events in the history of Earth, using to a large degree the evidence of organic Relative vs Absolute Dating Dating is a technique used in archeology to ascertain the age of artifacts, fossils and other items considered to be

Radiocarbon dating (also referred to as carbon dating or carbon - 14 dating) is a method for determining the age of an object containing organic material by Dating: Dating, in geology, determining a chronology or calendar of events in the history of Earth, using to a large degree the evidence of organic

Calculating your annual payment under this method requires you to have the balance of your IRA or 401 (k) account and an annuity factor, which is found in Appendix B of Rev. Ruling 2002 - 62 using the age you have reached (or will reach) for that calendar year.

That's why you're taking a dog DNA test with Embark, and why you want to most accurately predict his or her genetic age: If you've used it, you know that this feature depends on an estimate of calendar age as a starting point!

Who uses a wall calendar in this day and age?

So in both cases, one can construct a confidence / credible interval for the carbon - 14 age by well - known methods (that exhibit perfect probability matching), and then simply transform the endpoints of this interval to calendar years using the calibration curve (which I'll assume is known exactly, since uncertainty in it doesn't seem to really affect the argument).

I test both subjective and objective Bayesian methods, using for calendar age respectively a uniform prior and Jeffreys» prior.

The problem is, what input distribution do you use in the first step, to generate the true calendar ages?

The calibration curve is derived by taking samples from objects of known reliable calendar date and calculating the RC age on those samples (using the same assumed initial mass fraction as in our sample measurement).

Using a uniform prior, the true calendar age lies outside the HPD region noticeably more often than it should, and lies beyond the top of credible regions derived from the posterior CDF twice as often as it should.

The pink curve, showing the Bayesian posterior PDF using a uniform prior in calendar age, corresponds to the grey curve in Figure 1.

Your Fig. 6 shows that the uniform calendar age prior does terribly when the true calendar age is known to be in the range 1000 - 1100 years, using your hypothetical calibration curve.

But one question for Nic: How far off is the normalized (f (x)-RRB- where f (x) = g (C (x)-RRB- where C is the calibration curve, g (y) is the pdf for the Radio Determined Age and then the normalized (f) is the pdf for the calendar age, as compared to the Bayesian Posterior using Uniform PriAge and then the normalized (f) is the pdf for the calendar age, as compared to the Bayesian Posterior using Uniform Priage, as compared to the Bayesian Posterior using Uniform Prior?

Suppose the transformation from calendar date to 14C age using the calibration curve is effected before the application of Bayes» theorem to the notional observation for a uniform prior.

The layers are matched to calendar years using the telltale deposits of known volcanic eruptions; and 3) connecting the ages of the ice and the air — i.e., the time difference between snow falling and air bubbles getting enclosed — is a problem all of its own.

Levels of CD and PD were assessed in 746 adult male — male twin pairs at personal interview for ages 8 — 11, 12 — 14 and 15 — 17 years using a life history calendar.

In today's digital age, where many of us make use of electronic calendars, most people still rely on a printed calendar to jot down notes and reminders to effectively manage their time.

Here the owners have used vintage - style weighing scales, an aged metal utensil pot and bold black - and - white wall calendar to inject a hint of the industrial trend into the design.