نتایج جستجو برای: dop

تعداد نتایج: 876  

A novel, simple, sensitive and effective method has been developed for preconcentration of Hg(II) on nano-Fe3O4-DOP-ED solid-phase extraction adsorbent. In this paper, Dioctyl phthalate (DOP) was used to encapsulate nano-Fe3O4 and produce a nano-Fe3O4-DOP sorbent based new sorbent was prepared. This was treated with ethylenediamine (ED) in another solvent-free procedure for the formation of a n...

2003
Luciano Buratto Khalil Sima'an

The Data Oriented Parsing (DOP) model currently achieves state-ofthe-art parsing on benchmark corpora. However, existing DOP parameter estimation methods are known to be biased, and ad hoc adjustments are needed in order to reduce the effects of these biases on performance. This paper presents a novel estimation procedure that exploits a unique property of DOP: different derivations can generat...

2000
Guy De Pauw

Data-Oriented Parsing (dop) ranks among the best parsing schemes, pairing state-of-the art parsing accuracy to the psycholinguistic insight that larger chunks of syntactic structures are relevant grammatical and probabilistic units. Parsing with the dop-model, however, seems to involve a lot of CPU cycles and a considerable amount of double work, brought on by the concept of multiple derivation...

1999
E. J. Monaghan K. C. Ruttenberg

Methods for quantifying total dissolved phosphorus (TDP) were reevaluated. High-temperature ashing/hydrolysis (Ash/Hydrol.) and Acid Persulfate methods were examined for their ability to quantitatively convert a range of organic-P compounds to orthophosphate. The Ash/Hydrol. method recovered on average 99% of organic-P compounds tested, including phosphonates (compounds with C-P bonds). Contrar...

Journal: :Journal of Automata, Languages and Combinatorics 2005
Andreas Zollmann Khalil Sima'an

Given a sequence of samples from an unknown probability distribution, a statistical estimator aims at providing an approximate guess of the distribution by utilizing statistics from the samples. One crucial property of a ‘good’ estimator is that its guess approaches the unknown distribution as the sample sequence grows large. This property is called consistency. This paper concerns estimators f...

Journal: :Journal of Sensors 2022

A location sensor is a feature that communicates with Global Positioning System (GPS) receiver to learn about the status of current location. This work presents GPS position estimation and Dilution Precision (DOP) analysis using new approximate form observation matrix which can be used in place classic was derived from Taylor’s series. It has been realized that, numerically stable provides grea...

2013
S. San Martin J.S. Fitzgerald M. Weber M. Párraga T. Sáez T.M. Zorn U.R. Markert

Signal transducers and activators of transcription 3 (Stat3) has been identified as an important signal transducer in the invasive phenotype of the trophoblasts cells in in vitro studies. However, the in situ distribution and patterns of expression of this molecule in trophoblast cells during the development of the placenta are still under-elucidated. Mice uteri of gestational ages between 7 an...

Journal: :CoRR 1996
Rens Bod

In the introduction of his paper, Goodman observes that the DOP model ".. can be summarized as a special kind of Stochastic Tree Substitution Grammar (STSG): given a bracketed, labeled training corpus, let every subtree of that corpus be an elementary tree, with a probability proportional to the number of occurrences of that subtree in the training corpus." Goodman then neglects to add that acc...

2017
Konstantin A Blagodatskikh Vladimir M Kramarov Ekaterina V Barsova Alexey V Garkovenko Dmitriy S Shcherbo Andrew A Shelenkov Vera V Ustinova Maria R Tokarenko Simon C Baker Tatiana V Kramarova Konstantin B Ignatov

Whole-genome amplification (WGA) techniques are used for non-specific amplification of low-copy number DNA, and especially for single-cell genome and transcriptome amplification. There are a number of WGA methods that have been developed over the years. One example is degenerate oligonucleotide-primed PCR (DOP-PCR), which is a very simple, fast and inexpensive WGA technique. Although DOP-PCR ha...

2008
Geraldine Parenty Shirley Appelbe Graeme Milligan

Opioid agonists have a broad range of effects on cells of the immune system, including modulation of the inflammatory response, and opioid and chemokine receptors are co-expressed by many white cells. Hetero-oligomerization of the human DOP opioid and chemokine CXCR2 receptors could be detected following their co-expression by each of co-immunoprecipitation, three different resonance energy tra...

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