Results 21 to 30 of about 4,573,501 (300)

Determination and dietary exposure assessment of 79 pesticide residues in Chinese onion (Allium fistulosum L.)

open access: yesCyTA - Journal of Food, 2023
Chinese onion is a common vegetable in daily diet, especially in Southwest China. We collected 184 samples from farm and market in Chongqing Municipality during 2020–2021 and established a multi-residue method for analysis of 79 pesticide residues on ...
Nengming Chu   +5 more
doaj   +1 more source

ON THE STANDARD LENGTH OF A TEST* [PDF]

open access: yesETS Research Bulletin Series, 1950
ABSTRACTA new concept, that of the standard length of a test, seems useful in simplifying formulas for reliability and validity coefficients for tests of altered length. The usefulness of the concept is a consequence of the fact that it is possible to define a unit of test information, this being, in fact, the amount of information in a test of ...
openaire   +4 more sources

IFLA Standards Procedures Manual 2023

open access: yes, 2023
The IFLA Standards Procedures Manual aims to give guidance to IFLA units on the production or revision of an IFLA standard. The IFLA Standards Procedures Manual provides guidance for the development of standards and guidelines by IFLA units.
IFLA Committee on Standards
core   +1 more source

STANDARDIZATION OF THE WASSERMANN TEST

open access: yesAmerican Journal of Public Health, 1926
COMMENTS on the proposed plan, an outline of which appeared in the March issue of the AMERICAN JOURNAL OF PUBLIC HEALTH, were received from but twenty-three of the forty-six laboratories within the time limit set for compilation of this report. The twentythree laboratories include those of the United States Army and Naval Medical Schools, the Hygienic ...
R, Gilbert, V, Langworthy
openaire   +3 more sources

Effect of Water Management under Different Soil Conditions on Cadmium and Arsenic Accumulation in Rice

open access: yesAgronomy, 2023
Water management and soil conditions affect the bioavailability of cadmium (Cd) and inorganic arsenic (As) in the soil, and hence, their accumulation in rice grains.
Xia Li   +4 more
doaj   +1 more source

Improving Formative Assessment Practice with Educational Information Technology [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2006
This paper describes a web-based assessment design tool, the ADDS, that provides teachers both a structure and the resources required to develop and use quality assessments. The tool is applicable across subject domains.
Terry Vendlinski   +3 more
doaj  

Effect of Germination on the Avenanthramide Content of Oats and Their in Vitro Antisensitivity Activities

open access: yesMolecules, 2022
In this study, a method, based on an ultraperformance liquid chromatography coupled with high-field quadrupole orbitrap high-resolution mass spectrometry (UHPLC-QE-HF-HRMS) platform, was established for the trace determination of three major ...
Yuchao Feng   +7 more
doaj   +1 more source

IFLA Standards Newsletter, December 2023

open access: yes, 2023
IFLA Standards Newsletter provides an international forum for news, information and discussions about IFLA standards and guidelines and their international counterparts.
Hafner, Joseph
core   +1 more source

Standard Tests and Non-Standard Tests

open access: yesJurnal Riset Ilmu Pendidikan
Assessment plays a crucial role in education by measuring the success of the teaching and learning process. One of the most common assessment tools used is tests, which can be categorized into two main types: standardized tests and non-standardized tests (teacher-made tests).
Heriyanto Heriyanto   +4 more
openaire   +1 more source

New mosquito repellency bioassay for evaluation of repellents and pyrethroids using an attractive blood-feeding device

open access: yesParasites & Vectors, 2021
Background With the increasing threat of the worldwide spread of mosquito-borne infectious diseases, consumer interest in anti-mosquito textiles that protect against mosquito bites is also increasing.
Yasue Morimoto   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy