搜索结果: 1-12 共查到“理学 standardized”相关记录12条 . 查询时间(0.072 秒)
Online Platform Used In Schools Across US Helps Students Perform Higher On Standardized Math Tests（图）
Online Platform Schools Across US Students Perform Higher Standardized Math Tests
2018/1/10
Web-based platforms enhance teaching and learning in the classroom.Today, 100,000 students across the U.S. use an online mathematics tutoring and assessment program developed by an NSF-funded research...
The vitamin D status of the US population from 1988 to 2010 using standardized serum concentrations of 25-hydroxyvitamin D shows recent modest increases
standardization survey vitamin D trend NHANES supplements
2018/12/13
Background: Temporal trends in the US population’s vitamin D status have been uncertain because of nonstandardized serum 25-hydroxyvitamin D [25(OH)D] measurements.
The vitamin D status of the US population from 1988 to 2010 using standardized serum concentrations of 25-hydroxyvitamin D shows recent modest increases
standardization survey vitamin D trend NHANES supplements
2018/12/3
Background: Temporal trends in the US population’s vitamin D status have been uncertain because of nonstandardized serum 25-hydroxyvitamin D [25(OH)D] measurements.
The analysis of the Standardized Precipitation Index in the Mediterranean area:large-scale patterns
Climate variability drought monitoring
2015/9/28
Problems related to the identification and monitoring of drought are investigated. In particular, drought conditions in Italy are examined using the Standardized Precipitation Index (SPI) on different...
The analysis of the Standardized Precipitation Index in the Mediterranean area:regional patterns
Rainfall observatory drought climate variability
2015/9/28
In the present paper we propose a method to assess regional drought by using rain-gauge observations. In particular, we analyse the rainfall on the Marche region. We diagnose drought by means of the S...
Towards a public, standardized, diagnostic benchmarking system for land surface models
public standardized diagnostic benchmarking system land surface models
2014/12/10
This work examines different conceptions of land surface model benchmarking and the importance of internationally standardized evaluation experiments that specify data sets, variables, metrics and mod...
Standardized Total Tract Digestibility of Phosphorus in Copra Expellers, Palm Kernel Expellers, and Cassava Root Fed to Growing Pigs
Phosphorus Availability Standardized Total Tract Digestibility Swine
2016/5/12
An experiment was conducted to determine the apparent total tract digestibility (ATTD) and standardized total tract digestibility (STTD) of phosphorus (P) in copra expellers (CE), palm kernel expeller...
HESS Opinions “Crash tests for a standardized evaluation of hydrological models”
catchments hydrological models
2009/10/10
As all hydrological models are intrinsically limited hypotheses on the behaviour of catchments, models – which attempt to represent real-world behaviour – will always remain imperfect. To make progre...
Hydrological response to different time scales of climatological drought：an evaluation of the Standardized Precipitation Index in a mountainous Mediterranean basin
Standardized Precipitation Index drought conditions
2009/5/18
At present, the Standardized Precipitation Index (SPI) is the most widely used drought index to provide good estimations about the intensity, magnitude and spatial extent of droughts. The main advanta...
February 1, 2007，Chemists at the National Institute of Standards and Technology (NIST) have created a standardized form of common house dust to support environmental scientists studying our everyday e...
Towards a standardized processing of Net Ecosystem Exchange measured with eddy covariance technique:algorithms and uncertainty estimation
standardized processing Net Ecosystem Exchange eddy covariance technique
2010/1/13
Eddy covariance technique to measure CO2, water and energy fluxes between biosphere and atmosphere is widely spread and used in various regional networks. Currently more than 250 eddy covariance sites...
Comparing the quality of indicators of nutritional status by receiver operating characteristic analysis or by standardized differences
nutritional status receiver operating characteristic
2016/6/3
The publication of the article by Rice et al (1) in this issue of
the Journal is a good occasion to review the use of the receiver
operating characteristic (ROC) method almost 30 y after it was
int...