Sentences with phrase «requires observation times»

Not exact matches

We can not prove that all current diversity of life was produced by evolution by natural selection because that would require a time machine for direct observation.

«Our discovery will now justify the additional effort required to make such timing observations.»

The pair found that to recreate the observations, a big source of methane is required and the gas must be destroyed within 200 terrestrial days — 600 times faster than on Earth (Nature, DOI: 10.1038 / nature08228).

What they learn may help plan observations of smaller, potentially rocky and more Earth - like worlds that would require heftier investments of Webb's limited time.

A major challenge for precise time - resolved observations required by exoplanet observations.

It requires that the Sun's brightness increased more in the past century than at any time in the past millennium, including over the past 30 years, contrary to the direct space - based observations.

But its announcement was delayed due to the time required to understand two other discoveries: a LIGO - Virgo three - detector observation of gravitational waves from another binary black hole merger on August 14, and the first - ever detection of a binary neutron star merger in light and gravitational waves on August 17.

One of the key science drivers for the extension was the study of proper motions of stars in dwarf galaxies, which requires observations taken over as long a time baseline as possible.

Most searches of objects deep in space require long time observations using telescopes.

But implementation has been uneven for a number of reasons, including inadequate training of supervisors, supervisors who lack content knowledge outside of their own subject, and the difficulty of finding time to do all the required observations.

(P5.13 lesson) 4.5.6.3.1 - Stopping distance (P5.14 lesson) 4.5.6.3.2 - Reaction time (P5.14 lesson) 4.5.6.3.3 - Factors affecting braking distance 1 (P5.14 lesson) 4.5.6.3.4 - Factors affecting braking distance 2 (P5.14 lesson) 4.5.7.1 - Momentum is a property of moving objects (P5.15 lesson) 4.5.7.2 - Conservation of momentum (P5.15 lesson) Paper 2 topic 2 (4.6 - Waves) 4.6.1.1 - Transverse and longitudinal waves (P6.1 lesson) 4.6.1.2 - Properties of waves (wave calculations)(P6.1 lesson) 4.6.1.2 - Properties of waves - required practical - make observations to identify the suitability of apparatus to measure the frequency, wavelength and speed of waves in a ripple tank and waves in a solid and take appropriate measurements.

«I mean, once somebody is identified as Unsatisfactory, the amount of work, the amount of observation, the amount of time and attention that it requires to support them can become overwhelming.»

For some principals, meanwhile, the classroom observations have proved daunting because of the time commitment they require.

It will also look at how the new observations will work and how much time will be required, along with how the principals doing the evaluations will also be trained.

Although Pennsylvania commendably requires classroom observations as part of teacher evaluations, the state should articulate guidelines that focus classroom observations on the quality of instruction, as measured by student time on task, student grasp or mastery of the lesson objective and efficient use of class time.

The state requires that each local school system design a program incorporating components established by the state, including: an orientation program for new teachers prior to the start of the school year, mentor support such as regularly scheduled meetings during non-instructional time, opportunities for new teachers to observe and co-teach with skilled teachers with follow - up discussion of the experiences, ongoing professional learning activities, and ongoing formative review of new teacher performance such as classroom observation.

These early observations were reinforced by Colin Harvey in 1993, when he stated: «In a healthy dog or cat, fed a «natural» diet that requires tearing and separation of swallowable pieces, the teeth and gingival tissues are largely self - cleaning; that is, plaque is wiped off before it has time to mature to a pathogenic thickness and bacterial mix.»

Museum Photographs (1989 > 1992)-- a large - scale colour series, consisting of voyeuristic observations of crowds of visitors, which reveals how historic paintings exhibited in famous museums are experienced today, requires time and space to be fully appreciated.

In the end, climate observations have requirements that are typically ten times more accurate than weather, and require 10 times as many variables to be observed.

There might be value in a more generic piece focusing on this kind of tension, which is going to be with us for some time — the slow steady responses predicted by current models, the concern that some observations of faster and bigger changes might actually be the greenhouse gas - forced signal and not just internal variability, the patience required before new observations and better theories / models sort things out.

«As Lean notes, such a trend would require the sun to brighten more in the past century than any time in the past millennium, a dynamic unseen during 30 years of space observation.»

Humans are probably responsible for most of the CO2 rise based on the observations of the CO2 we are emitting, but to make the claim that Fred has made would require the ability to make accurate measurements of total CO2 at any point in time and then to accurately determine what percentage of that total CO2 is of human origin.

Requiring more time, more research, a new period of observations to compare with the predicted outcome of the new mix of variables.

This requires collecting more data at high resolution in time and space, and the use of isotopes to bridge top - down and bottom - up observations to identify methane sources across these measurement scales.

Show me the empirical data, based on real - time physical observations or reproducible experimentation (NOT climate model runs), which support the premise that GH warming requires decades or even centuries to reach «equilibrium».

The fact is that a TOBS adjustment is required if time of observation has changed.

Plans for the next decade of the World Climate Research Programme require continuing global observations of clouds and the most practical way to fulfill this requirement is to continue ISCCP until it can be replaced by a much more capable system with similar time resolutions and global coverage.

Though many modeling studies have demonstrated the impact of deep water formation changes on the overturning circulation, the observational evidence for such a linkage has been hard to come by for two reasons: (1) Deep water formation is difficult to quantify because the time and locale of production are highly variable from winter to winter, and (2) overturning circulation measures require observations that span the basin, which have been limited in space and time.

The quantitative uncertainty associated with each step in homogeneity adjustments needs to be provided: Time of observation, instrument changes, and urban effects have been recognized as important adjustments that are required to revise temperature trend information in order to produce improved temporal and spatial homogeneity.

Under these initiatives, the law firms pay their new associates much less than the market rate and require far fewer billable hours from them; associates spend most of their time in apprenticeship, training and shadow programs with experienced lawyers, with (unbilled) client contact and observation opportunities where possible.

There are also a number of hours of actual behind - the - wheel driving time and also few hours of observation required.

A minimum of 6 hours of behind - the - wheel instruction and 6 hours of observation time is required of all students.

Texas allows driving schools to teach the state - required curriculum; students under 18 must have 32 hours of classroom instruction, 7 hours of observation time in a vehicle, and 7 hours behind - the - wheel.

In addition, 7 hours of observation time is required.

With regard to the sample size required for valid application of this modeling approach, we are hesitant to speak of sufficient sample sizes, since a large number of observations with little score variation over time (as in our second empirical application) does not necessarily provide richer information than a smaller sample with more fluctuations.