Results 91 to 100 of about 2,092,591 (384)

The “Bitul B’shishim (one part in sixty)”: is a Jewish conditional prohibition of the Talmud the oldest-known testimony of quantitative analytical chemistry?

open access: yesSubstantia, 2018
Accomplishments of Hellenistic science and technology in some fields, such as mathematics, physical cosmology and engineering, has recently been re-evaluated and can be considered as of the same level that the scientific revolution in Western Europe ...
Federico Maria Rubino
doaj   +1 more source

Dilute Quantum Droplets [PDF]

open access: yesPhysical Review Letters, 2002
In the limit when the two-body scattering length $a$ is negative and much larger than the effective two-body interaction radius the contribution to the ground state energy due to the three-body correlations is given by the Efimov effect. For particular values of the diluteness parameter $ |a|^3$ the three-body contribution can become the dominant term
openaire   +3 more sources

The Dilution Effect of Misclassification [PDF]

open access: yesAmerican Journal of Public Health and the Nations Health, 1964
THE KNOWLEDGE that misclassification of a characteristic "dilutes" or decreases a true difference has been a source of comfort to the investigator whose study produced a significant difference despite misclassification; and a source of caution to the investigator who failed to produce a significant difference and strongly suspected misclassification ...
Philip Buell, John E. Dunn
openaire   +3 more sources

Linked dimers of the AAA+ ATPase Msp1 reveal energetic demands and mechanistic plasticity for substrate extraction from lipid bilayers

open access: yesFEBS Letters, EarlyView.
Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur   +5 more
wiley   +1 more source

Susceptibility and dilution effects of the kagome bi-layer geometrically frustrated network. A Ga-NMR study of SrCr_(9p)Ga_(12-9p)O_(19)

open access: yes, 2002
We present an extensive gallium NMR study of the geometrically frustrated kagome bi-layer compound SrCr_(9p)Ga_(12-9p)O_(19) (Cr^3+, S=3/2) over a broad Cr-concentration range ...
A. Keren   +79 more
core   +1 more source

Determination of Creatinine in Human Urine with Flow Injection Tandem Mass Spectrometry [PDF]

open access: yes, 2012
Background/Aims: Excretion of urinary compounds in spot urine is often estimated relative to creatinine. For the growing number of liquid chromatography-tandem mass spectrometry (LC-MS/MS) assays of urine-excreted molecules, a fast and accurate method ...
Koletzko, Berthold   +2 more
core   +1 more source

Novel dilution sampling method for gas analysis with a low sampling rate

open access: yesMechanical Engineering Journal, 2020
The characterization of the product gas of flames is important not only in the design of combustors but also to provide a fundamental understanding of the phenomenon of combustion.
Akihiro HAYAKAWA   +5 more
doaj   +1 more source

Designing and Interpreting Limiting Dilution Assays: General Principles and Applications to the Latent Reservoir for Human Immunodeficiency Virus-1

open access: yesOpen Forum Infectious Diseases, 2015
Limiting dilution assays are widely used in infectious disease research. These assays are crucial for current HIV-1 cure research in particular. Here we offer new tools to help investigators design and analyze dilution assays based on their specific ...
Daniel I. S. Rosenbloom   +5 more
semanticscholar   +1 more source

Multidimensional OMICs reveal ARID1A orchestrated control of DNA damage, splicing, and cell cycle in normal‐like and malignant urothelial cells

open access: yesMolecular Oncology, EarlyView.
Loss of the frequently mutated chromatin remodeler ARID1A, a subunit of the SWI/SNF cBAF complex, results in less open chromatin, alternative splicing, and the failure to stop cells from progressing through the cell cycle after DNA damage in bladder (cancer) cells. Created in BioRender. Epigenetic regulators, such as the SWI/SNF complex, with important
Rebecca M. Schlösser   +11 more
wiley   +1 more source

Response terminated displays unload selective attention

open access: yesFrontiers in Psychology, 2013
Perceptual load theory successfully replaced the early versus late selection debate by appealing to adaptive control over the efficiency of selective attention.
Zachary Joseph Jackson Roper   +1 more
doaj   +1 more source

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