Sentences with phrase «time observation systems»

Not exact matches

«In essence, it is a synthesis of the results obtained by Greek astronomy... On the motions of the Sun, Moon, and planets, Ptolemy again extended the observations and conclusions of Hipparchus — this time to formulate his geocentric theory, which is popularly known as the Ptolemaic system» (15th edition, 1975, Macropaedia, Vol.
Through his great sense and knowledge of history, and his meticulous observation of men, times and places, Ibn - Khaldun produced an original system of economic thought.
It is our observation that because of the (mostly younger) age of our children at the time of their adoption and the special circumstances of their abandonment and life in an orphanage or foster home, and then subsequent adoption into a loving home, their symptoms and disorders may manifest differently than those of a child who has been through the domestic foster / adoption system.
But time will tell, because Randall's idea is testable: Future observations of our galaxy, as well as of tiny galaxies surrounding the nearby Andromeda Galaxy, could find this type of dark matter and illuminate the solar system's route through it.
The system uses satellite observations of the timing and intensity of vegetation activity and how this relates to temperature and soil moisture to classify the world's vegetation into 24 biome types.
Over time, the rings spread out, and the icy bits that drifted farthest from Saturn eventually reached distances where their gravitational attraction for each other could overcome the planet's tidal forces that tended to rip them apart — a process that is still happening today, according to observations by the Cassini spacecraft now touring the Saturn system.
But recent observations and numerical simulations suggest that eventually — in a few millennia, maybe — the solar system may plow into a cloud of gas and dust a thousand times denser than the space we travel through now.
Also they developed a system to detect supernovae automatically in the heavy flood of data during the survey, which enabled real - time discoveries and timely follow - up observations.
The team fed their observations into a mathematical model that can predict defecation times for digestive system problems.
The methodology is demonstrated on two model systems: the time - dependent spontaneous dissociation of photosynthetic light - harvesting antenna complexes and direct observation of DNA strands binding and unbinding in solution.
But the combination of X-ray laser and ARPES observations should provide new and more sophisticated insights on the physics of material systems where several factors are at play at the same time, and hopefully move the field forward faster.
Approximate location of Comet Lemmon in our Solar System at the time of the ALMA observations.
«Usually when we see a short gamma - ray burst, the jet emission generated gets bright for a short time as it smashes into the surrounding medium — then fades as the system stops injecting energy into the outflow,» says Daryl Haggard, lead researcher on a new study describing the continued observations.
Rather than use a model - based estimate, as did Hansen (2005) and Trenberth (2009), the authors achieve this by calculating it from observations of ocean heat content (down to 1800 metres) from the PMEL / JPL / JIMAR data sets over the period July 2005 to June 2010 - a time period dominated by the superior ARGO - based system.
We reconstructed the full carbonate system of an estuarine seagrass habitat for a summer period of 2.5 months utilizing a combination of time - series observations and mechanistic modeling, and quantified the roles of aerobic metabolism, mixing, and gas exchange in the observed dynamics.
The combination of small telescopes optimized for SZE observations and large correlator bandwidth make this system roughly 100 times more sensitive than the previous SZE system on the OVRO (10.4 m dishes) and BIMA (6.1 m dishes) telescopes.
Once they're comfortable with the way that one thinking routine has worked in their classroom, they can branch out and focus on different kinds of inquiry, like Here Now / There Then, which could be used in a civics class to help students understand how past perspectives change over time; or Parts, Purpose, Complexities, which encourages observation and understanding of art objects or mechanical systems.
To ensure that all observers are on the same page in their ability to identify and rate observations with consistency, Learning Sciences suggests that within any system of observation observers take the time to view teacher practice together and then discuss what each person observed.
Almost always it is the case when a counterpoint is needed for an article such as this, that a teacher says they see «value» in the system, but almost if not every time it is because of the increased professional observations of teacher practice, not the value - added component or the value - added data derived.
That includes observations and may also include certain artifacts of the teacher's work, like lesson plans, curriculum units, student work, et cetera... You need well - trained evaluators who know how to apply that instrument in a consistent and effective way... You want to have a system in which the evaluation is organized over a period of time so that the teacher is getting clarity about what they're expected to do, feed back about what they're doing, and so on.»
Of special note here is also the following finding: «In half of the systems [in which researchers investigated these systems], there [was] a strong and clear expectation that there be alignment between a teacher's value - added growth score and observation ratings... Sometimes this was a state directive and other times it was district - based.
The proposed system would include requirements for grant - funded classrooms in regards to improvement plans, multiple observations over time to increase program quality, as well as professional development for teachers and administrators to understand and promote quality practices and data use.
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.
This system provides teachers with «curriculum specialists to improve practice,» «school leaders who spend the majority of their time on instruction, observation and coaching,» and professional networks with other Green Dot teachers in a series called «All Green Dot Days» (FAQ, Green Dot Website)
This system provides teachers with «curriculum specialists to improve practice,» «school leaders who spend the majority of their time on instruction, observation and coaching,» and professional networks with other Green Dot teachers in a series called «All Green Dot Days» (FAQ, Green Dot Website) Additionally, unlike most other charter school organizations in the United States, the Green Dot California school teachers and staff are organized under a union called Asociación de Maestros Unidos (AMU).
For me, landscape painting extends beyond observation and formal concerns, drawing on bodily sensations, energy from the nervous system, time awareness, muscle memory, an education in twentieth - century art, and the performative act of mark - making.
Observations show chaotic behavior of the climate system on all time scales, including sudden regime transitions, as we documented in Rial, J., R.A. Pielke Sr., M. Beniston, M. Claussen, J. Canadell, P. Cox, H. Held, N. de Noblet - Ducoudre, R. Prinn, J. Reynolds, and J.D. Salas, 2004: Nonlinearities, feedbacks and critical thresholds within the Earth's climate system.
I think some further explanation of the statement, «Observations show chaotic behavior of the climate system on all time scales, including sudden regime transitions» is warranted.
Such an observation system might easily cost 4 to 5 times the current NASA Earth Science budget.
However if you are ignorant about the true nature of the system and go to stupidly extrapolate the trend from short time series to long time scales, the system will always punish you by showing an opposite trend when the observation time increases.
A lower and more constrained estimate of climate sensitivity using updated observations and detailed radiative forcing time series R. B. Skeie (1), T. Berntsen (1,2), M. Aldrin (3), M. Holden (3), and G. Myhre (1)(1) Center for International Climate and Environmental Research — Oslo (CICERO), Norway ([email protected]), (2) Department of Geosciences, University of Oslo, Norway, (3) Norwegian Computing Center, Oslo, Norway A key question in climate science is to quantify the sensitivity of the climate system to perturbation in the radiative forcing (RF).
Forest (2006) states: «It is not possible to estimate the true climate system variability on century time - scales from observations and therefore, climate models are run with fixed boundary conditions for thousands of years to obtain estimates of the climate variability.»
Even though all I'm doing is reporting observations which prove spin - orbit coupling beyond any reasonable doubt, and showing that the organisation and timings of the solar system are the natural outcome of lognormal particle distribution and the power law of gravity.
Gruber, N., et al. (2010), Towards an integrated observing system for ocean carbon and biogeochemistry at a time of change, in Proceedings of OceanObs» 09: Sustained Ocean Observations and Information for Society, vol.
Satellite data providers in Member States can contact us to obtain real - time and archive products for use in their operational forecast system in exchange for real - time satellite observations.
To describe and understand the physical processes responsible for climate variability and predictability on seasonal, interannual, decadal, and centennial time - scales, through the collection and analysis of observations and the development and application of models of the coupled climate system, in cooperation with other relevant climate - research and observing programmes.
This time period is too short to signify a change in the warming trend, as climate trends are measured over periods of decades, not years.12, 29,30,31,32 Such decade - long slowdowns or even reversals in trend have occurred before in the global instrumental record (for example, 1900 - 1910 and 1940 - 1950; see Figure 2.2), including three decade - long periods since 1970, each followed by a sharp temperature rise.33 Nonetheless, satellite and ocean observations indicate that the Earth - atmosphere climate system has continued to gain heat energy.34
Over the next 3 years the Ocean Colour Climate Change Initiative project aims to: Develop and validate algorithms to meet the Ocean Colour GCOS ECV requirements for consistent, stable, error - characterized global satellite data products from multi-sensor data archives; Produce and validate, within an R&D context, the most complete and consistent possible time series of multi-sensor global satellite data products for climate research and modelling; Optimize the impact of MERIS data on climate data records; Generate complete specifications for an operational production system; Strengthen inter-disciplinary cooperation between international Earth observation, climate research and modelling communities, in pursuit of scientific excellence.
Also of course, in he case of the Brewer - Dobson Circulation, models and observation has shown it to be affected by GH gas concentrations which of course dictate strongly the total energy being stored in the Earth system at any given time.
The evidence in favour of such a link is the observation that the ITCZ and other air circulation system components have changed over those longer time spans.
R. Gates, «Also of course, in (t) he case of the Brewer - Dobson Circulation, models and observation has shown it to be affected by GH gas concentrations which of course dictate strongly the total energy being stored in the Earth system at any given time
For example, changes in time of observation, adjustment for a move of a station that was previously sited next to a heat source to a better location (that now allows the station to be classed as Class 1 or 2), switch to a different temperature measurement device or system, etcetera, could explain why smaller classes of raw data don't track well with the overall trend calculated from homogenized station trend data.
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.
«This is the first time this signal has been observed directly in carbon dioxide in Arctic aquatic systems, and mirrors previous observations that considered only soil systems,» said Dean.
The parameters controlling the system can be transparently combined into a single control, and there exists a critical value of this control from which a small perturbation leads to a qualitative change in a crucial feature of the system, after some observation time.
Observations of the climate system and the output of models are a combination of a forced climate change signal and internally generated natural variability which, because it is random and unpredictable on long climate time - scales, is characterised as climate noise.
The ULab approach advocates resisting the strong temptation to move immediately to solutions based on surface level observations but to take time instead to go deeper, to explore the underlying root causes and to gain understanding and empathy for the experience of human beings who participate in the system.
✔ 8 + years of training and experience in conducting covert observations utilizing surveillance equipment effectively ✔ Connecticut State private investigator license ✔ In - depth knowledge and fluency of all tracking software, GPS and navigation systems, SMAT TRAK, FTP and the time and attendance software ✔ Proven track record of connecting pieces of evidence analytically analyzing all elements and compiling a comprehensive meaningful report based on observation logs and other sources including camcorder recordings and pictorial evidence
Saliva collection was chosen because it is the most frequently used procedure in studies in young children.11, 13,14,17,25 This convention has emerged because of the ease of collection for assessments at multiple time points, the stress - free nature of the procedures, and the observation that salivary cortisol levels reflect levels of the biologically active hormone available to central nervous system receptors.39
a b c d e f g h i j k l m n o p q r s t u v w x y z