Results 1 to 10 of about 5,447,975 (305)

Pseudovirus as an Emerging Reference Material in Molecular Diagnostics: Advancement and Perspective [PDF]

open access: yesCurrent Issues in Molecular Biology
In recent years, the persistent emergence of novel infectious pathogens (epitomized by the global coronavirus disease-2019 (COVID-2019) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)) has propelled nucleic acid testing ...
Leiqi Zheng, Sihong Xu
doaj   +2 more sources

Determination of the Migration of Lactide in PLA Food Contact Materials by Gas Chromatography Mass Spectrometry

open access: yesShipin gongye ke-ji, 2023
The method for the determination of migration of lactide in polylactic acid (PLA) food contact material by gas chromatography-mass spectrometry (GC-MS) was established.
Ying ZENG   +8 more
doaj   +1 more source

Global certified-reference-material- or reference-material-scaled nutrient gridded dataset GND13 [PDF]

open access: yesEarth System Science Data, 2020
A global nutrient gridded dataset that might be the basis for studies of more accurate spatial distributions of nutrients in the global ocean was created and named GND13.
M. Aoyama
doaj   +1 more source

Interpretation of the exergy equation for steady-flow processes [PDF]

open access: yes, 1986
We define and discuss the terms in exergy equations, with particular reference to the role of chemical terms in the exergy loss for steady-flow processes.
Siemons, Roland V.
core   +6 more sources

"Preparation of Mooney viscosity reference material for low cis-1,4-polybutadiene rubber"

open access: yesHecheng xiangjiao gongye, 2023
The low cis-1,4-polybutadiene rubber material that had been filtrated and passed the homogeneity and stability tests and conformed to requirements for the reference material, was jointly determined the value by several laboratories, and the results of ...
LIU Jun-bao1, HUANG Shi-ying1, MA Li-Li2, CAO Shuai-ying1
doaj   +1 more source

Preparation and certification of wheat flour reference material for tenuazonic acid and tentoxin using isotope dilution- liquid chromatography-tandem mass spectrometry

open access: yesZhongguo shipin weisheng zazhi, 2021
ObjectiveA method for the preparation and certification of the reference material of tenuazonic acid(TeA) and tentoxin (TEN) in wheat flour was developed.MethodsThe reference material of TeA and TEN in wheat flour was prepared from grain which naturally ...
XIE Ji'an   +6 more
doaj   +1 more source

Types, Production and Validation of Reference Materials for Viral Genetic Testing

open access: yesAnnals of Clinical Microbiology, 2020
Molecular diagnostic techniques are used for the diagnosis and monitoring of viral infections. The performance of the in vitro diagnostic assays is important for an accurate and prompt diagnosis. Positive clinical samples or reference materials (RMs) are
Eun-Jung Cho   +7 more
doaj   +1 more source

On Relativistic Material Reference Systems [PDF]

open access: yes, 1995
This work closes certain gaps in the literature on material reference systems in general relativity. It is shown that perfect fluids are a special case of DeWitt's relativistic elastic media and that the velocity--potential formalism for perfect fluids ...
B. Carter   +26 more
core   +2 more sources

Direct Calibration Method for LA-HR-ICP-MS Apatite U-Pb Dating

open access: yesYankuang ceshi, 2022
BACKGROUND Apatite is a common U-bearing accessory mineral with a U-Pb closure temperature of ~500℃, making U-Pb dating of apatite a potentially valuable thermochronometer.
ZHAO Linghao   +5 more
doaj   +1 more source

Chlorophylls and Bacteriochlorophylls: Biochemistry, Biophysics, Functions and Applications [PDF]

open access: yes, 2005
Supplementary material to this book contains the following Adobe-Writer (.pdf) files: an overview of the material, the color coding for the map on the title page), and supporting information for chapter 1, 14, 20, 22 and 30.
Grimm, Bernhard   +3 more
core   +2 more sources

Home - About - Disclaimer - Privacy