Results 11 to 20 of about 2,899,179 (354)

Rapid Increase of SARS-CoV-2 Variant B.1.1.7 Detected in Sewage Samples from England between October 2020 and January 2021

open access: yesmSystems, 2021
The recent appearance and growth of new SARS-CoV-2 variants represent a major challenge for the control of the COVID-19 pandemic. These variants of concern contain mutations affecting antigenicity, which raises concerns on their possible impact on human ...
Thomas Wilton   +7 more
doaj   +1 more source

Inclusion of double helix structural oligonucleotide (STexS) results in an enhance of SNP specificity in PCR

open access: yesScientific Reports, 2021
Genetic mutations such as single nucleotide polymorphisms (SNP) are known as one of the most common forms which related to various genetic disorders and cancers.
Jae Jong Kim   +5 more
doaj   +1 more source

Development of the web-based NIST X-ray Photoelectron Spectroscopy (XPS) Database

open access: yesData Science Journal, 2006
The first Web-based version of the NIST X-ray Photoelectron Spectroscopy Database (XPSDB) is described. The current database, built from a relational database management system (RDBMS), contains critically evaluated data with over 19,000 line positions ...
Angela Y Lee   +3 more
doaj   +1 more source

The Science Behind Nefertiti's Beauty: A Plastic Surgeon's Analysis

open access: yesIndian Journal of Plastic Surgery, 2022
Introduction The famous stucco limestone coated “Bust of Nefertiti” housed in the Neues Museum, Germany dated 1,345 BC is an icon of beauty. Sculpted around three millennia ago by Thutmose, the bust still emits a charm that leaves its audience spellbound.
Neha Chauhan
doaj   +1 more source

MAINTENANCE OF TIME STANDARDS IN THE DEPARTMENT OF REFERENCE STANDARDS IN ZIELONKA. CONTRIBUTION INTO THE CREATION OF THE POLISH ATOMIC TIME SCALE TA (PL)

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2016
The article includes information about time standards in the Department of Reference Standards in Zielonka. The department is part of the Central Military Calibration Laboratory, which performs tasks related to the calibration standards of the other ...
Marcin Gosztyła
doaj   +1 more source

The essentials of a database quality process

open access: yesData Science Journal, 2003
Many steps are involved in the process of turning an initial concept for a database into a finished product that meets the needs of its user community. In this paper, we describe those steps in the context of a four-phase process with particular emphasis
Dorothy M Blakeslee, John Rumble, Jr.
doaj   +1 more source

Assessing the impact of the introduction of the World Health Organization growth standards and weight-for-height z-score criterion on the response to treatment of severe acute malnutrition in children: Secondary data analysis [PDF]

open access: yes, 2009
OBJECTIVE: The objective of our study was to assess the impact of adopting the World Health Organization growth standards and weight-for-height z-score criterion on the response to treatment of severe acute malnutrition in children compared with the use ...
Grais, R   +3 more
core   +2 more sources

Big Data Quality Assurance Through Data Traceability: A Case Study of the National Standard Reference Data Program of Korea

open access: yesIEEE Access, 2019
In the era of big data, the scientific and social demand for quality data is aggressive and urgent. This paper sheds light on the expanded role of metrology of verifying validated procedures of data production and developing adequate uncertainty ...
Doyoung Lee
doaj   +1 more source

Comparison of ophthalmological standards applicable to drivers in Poland and the United Kingdom with the European Union recommendations

open access: yesJournal of Ophthalmology, 2022
Each country has its own specific requirements with regard to the visual standards applicable to drivers. The following were summarised in the appropriate tables: 1) data contained in the Ordinance of the Minister of Health from the 30th of August 2019 ...
Wiktor Stopyra
doaj   +1 more source

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