15 papers · ranked by Valyu relevance
Alejandro Moreo, Fabrizio Sebastiani, Sergio Consoli
Sentiment quantification is the task of training, by means of supervised learning, estimators of the relative frequency (also called “prevalence”) of sentiment-related classes (such as Positive, Neutral, Negative) in a sample of unlabelled texts. This task is especially important when these texts are tweets, since the…
Andreas M Boehm, Stephanie Pütz, Daniela Altenhöfer, Albert Sickmann + 1 more
'Michael Falk'] Background Mass spectrometry based quantification of peptides can be performed using the iTRAQ™ reagent in conjunction with mass spectrometry. This technology yields information about the relative abundance of single peptides. A method for the calculation of reliable quantification information is…
Katharina Habler, Arber Rexhaj, Felix L. Happich, Michael Vogeser + 2 more
'Michele De Luca' 'Stefan Platikanov'] Mass spectrometry (MS) is a widely used analytical technique including medical diagnostics, forensic toxicology, food and water analysis. The gold standard for quantifying compounds involves using stable isotope-labeled internal standards (SIL-IS). However, when these standards…
Min-Jung Kang, Hannah Yu, Sook-Kyung Kim, Sang-Ryoul Park + 2 more
Quantification of trace amounts of DNA is a challenge in analytical applications where the concentration of a target DNA is very low or only limited amounts of samples are available for analysis. PCR-based methods including real-time PCR are highly sensitive and widely used for quantification of low-level DNA samples.…
Gabriele Carcassi, Christine A. Aidala, Andrei Khrennikov, Carlos Mejía-Monasterio
'Carlos Mejía-Monasterio'] Measure theory is used in physics, not just to capture classical probability, but also to quantify the number of states. In previous works, we found that state quantification plays a foundational role in classical mechanics, and, therefore, we set ourselves to construct the quantum equivalent…
Martin Walker, María-Gloria Basáñez, André Lin Ouédraogo, Cornelus Hermsen + 2 more
'Cornelus Hermsen' 'Teun Bousema' 'Thomas S Churcher'] Background Quantitative molecular methods (QMMs) such as quantitative real-time polymerase chain reaction (q-PCR), reverse-transcriptase PCR (qRT-PCR) and quantitative nucleic acid sequence-based amplification (QT-NASBA) are increasingly used to estimate pathogen…
Rhianna L. Evans, Daniel J. Bryant, Aristeidis Voliotis, Dawei Hu + 6 more
Approach to Nontarget Compositional Analysis of Complex Samples Authors: Rhianna L. Evans, Daniel J. Bryant, Aristeidis Voliotis, Dawei Hu, HuiHui Wu, Sara Aisyah Syafira, Osayomwanbor E. Oghama, Gordon McFiggans, Jacqueline F. Hamilton, Andrew R. Rickard Nontarget analysis (NTA) by liquid chromatography coupled to…
Zhe Du, Sebastian F. Behrens, Zhe-Xue Quan
Quantitative real-time PCR of phylogenetic and functional marker genes is among the most commonly used techniques to quantify the abundance of microbial taxa in environmental samples. However, in most environmental applications, the approach is a rough assessment of population abundance rather than an exact absolute…
Lihua Yu, Mingyuan Yuan, Xu Dai, Yarong Yu + 5 more
Objective To evaluate the diagnostic performance for coronary stenosis of artificial intelligence (AI)-based CT quantification, manual CT quantification, and visual invasive coronary angiography (ICA) assessment against quantitative coronary angiography (QCA). Materials and methods This retrospective study included…
Guiyue Ma, Haiyan Fang, Xiang Wang, Yahui Meng + 2 more
'Chuanying Zhang'] This study aimed to investigate the level of self-quantification among patients with hypertension and identify the factors influencing this behavior. This study aimed to investigate self-quantification levels and identify influencing factors among 400 patients diagnosed with hypertension. Employing a…
R. S. Ogden, F. R. Simmons, J. H. Wearden
Performance similarities on tasks requiring the processing of different domains of magnitude (e.g. time, numerosity, and length) have led to the suggestion that humans possess a common processing system for all domains of magnitude (Bueti and Walsh in Philos Trans R Soc B 364:1831-1840, 2009). In light of this, the…
Marco Bertamini
There are many situations in which we interact with collections of objects, from a crowd of people to a bowl of blackberries. There is an experience of the quantity of these items, although not a precise number, and we have this impression quickly and effortlessly. It can be described as an expressive property of the…
Jitsuki Sawamura, Shigeru Morishita, Jun Ishigooka
The Stevens classification of levels of measurement involves four types of scale: “Nominal”, “Ordinal”, “Interval” and “Ratio”. This classification has been used widely in medical fields and has accomplished an important role in composition and interpretation of scale. With this classification, levels of measurements…
David Flater
The SI brochure’s treatment of quantities that it regards as dimensionless, with the associated unit one, requires certain physical quantities to be regarded as simply numbers. The resulting formal system erases the nature of these quantities and excludes them from important benefits that quantity calculus provides…
Matthias Egg
Existing proposals concerning the ontology of quantum mechanics (QM) either involve speculation that goes beyond the scientific evidence or abandon realism about large parts of QM. This paper proposes a way out of this dilemma, by showing that QM as it is formulated in standard textbooks allows for a much more…