Results 21 to 30 of about 2,451,911 (303)
Speciation without chromatography: Part 2. Determination of tributyltin by chloride generation flow injection atomic absorption spectrometry [PDF]
, 2002 A procedure is described for the quantitation of tributyltin in aqueous samples and extracts based on its relatively high volatility in halide media, permitting vapour phase sampling from the headspace above such samples.Tributyltin chloride (TBT-C1) was
Christine Scriver +13 more
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Charge Detection in a Closed-Loop Aharonov-Bohm Interferometer [PDF]
, 2006 We report on a study of complementarity in a two-terminal "closed-loop" Aharonov-Bohm interferometer. In this interferometer, the simple picture of two-path interference cannot be applied.
A. L. Yeyati +3 more
core +2 more sources
Fundamental Limitation on the Detectability of Entanglement
Physical Review Letters, 2022 Entanglement detection is essential in quantum information science and quantum many-body physics. It has been proved that entanglement exists almost surely for a random quantum state, while the realizations of effective entanglement criteria usually consume exponential resources, and efficient criteria often perform poorly without prior knowledge. This
Pengyu Liu +3 more
openaire +3 more sources
Resolution limit in community detection [PDF]
Proceedings of the National Academy of Sciences, 2007 Detecting community structure is fundamental for uncovering the links between structure and function in complex networks and for practical applications in many disciplines such as biology and sociology. A popular method now widely used relies on the optimization of a quantity called modularity, which is a quality index for a partition of a network into
Fortunato, Santo, Barthelemy, Marc
openaire +3 more sources
Detecting deception: the scope and limits [PDF]
Trends in Cognitive Sciences, 2008 With the increasing interest in the neuroimaging of deception and its commercial application, there is a need to pay more attention to methodology. The weakness of studying deception in an experimental setting has been discussed intensively for over half a century.
Sip, Kamila E +3 more
openaire +2 more sources
Limits of Detecting Extraterrestrial Civilizations
CoRR, 2021 The search for extraterrestrial intelligence (SETI) is a scientific endeavor which struggles with unique issues -- a strong indeterminacy in what data to look for and when to do so. This has led to attempts at finding both fundamental limits of the communication between extraterrestrial intelligence and human civilizations, as well as benchmarks so as ...
Ian George, Xinan Chen, Lav R. Varshney
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Saliva is Comparable to Nasopharyngeal Swabs for Molecular Detection of SARS-CoV-2
Microbiology Spectrum, 2021 The continued need for molecular testing for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the potential for self-collected saliva as an alternative to nasopharyngeal (NP) swabs for sample acquisition led us to compare saliva to NP ...
Cody Callahan +9 more
doaj +1 more source
Detection of amplitude modulation with squeezed light for sensitivity beyond the shot-noise limit [PDF]
, 1988 An improvement in precision beyond the limit set by the vacuum-state or zero-point fluctuations of the electromagnetic field is reported for the detection of amplitude modulation encoded on a weak signal beam. The improvement is achieved by employing the
Kimble, H. J., Wu, Ling-An, Xiao, Min
core +1 more source
Optimizing the Limit of Detection of Waveguide-Based Interferometric Biosensor Devices
Sensors, 2019 Waveguide-based photonic sensors provide a unique combination of high sensitivity, compact size and label-free, multiplexed operation. Interferometric configurations furthermore enable a simple, fixed-wavelength read-out making them particularly suitable
Jonas Leuermann +7 more
doaj +1 more source
Comparing the fundamental limit of detection for interferometric and resonant biosensors with coherent phase read-out [PDF]
, 2019 We compare the limit of detection of coherently interrograted photonic biosensors, using both interferometric and resonant architectures.Universidad de Málaga.
Halir, Robert +4 more
core +1 more source