A Model-Independent Evaluation of Experimental Data, and Comparison with Theory, of Synergistic Effects in Mixtures of an Ionic and a Nonionic Surfactant

Langmuir ◽  
2003 ◽  
Vol 19 (26) ◽  
pp. 10719-10725 ◽  
Author(s):  
Magnus Bergström ◽  
Petra Jonsson ◽  
Marcus Persson ◽  
Jan Christer Eriksson
Keyword(s):  
Experimental Data ◽  
Nonionic Surfactant ◽  
Synergistic Effects ◽  
Independent Evaluation ◽  
Model Independent

COMMENTS ON QCD SUM-RULE CALCULATIONS OF EXCLUSIVE TWO-BODY DECAYS OF CHARMED MESONS

1989 ◽  
Vol 04 (09) ◽  
pp. 877-883 ◽  
Author(s):  
LING-LIE CHAU ◽  
HAI-YANG CHENG
Keyword(s):  
Experimental Data ◽  
Sum Rules ◽  
Theoretical Calculations ◽  
Charmed Mesons ◽  
Qcd Sum Rules ◽  
Generic Structure ◽  
Sum Rule ◽  
Quark Diagram ◽  
Model Independent ◽  
Decays Of Charmed Mesons

Exclusive two-body decay amplitudes of charmed mesons evaluated by Blok and Shifman (BS) using QCD sum rules are analyzed using the model-independent quark-diagram scheme, which helps to pin point the generic structure of the BS calculations, and their difficulties when compared with the experimental data. We also point out what experimental improvements on the data and which new data are most helpful in sharpening these comparisons. Some comments on possible ways of further improving the theoretical calculations are given.

A generalized empirical formula for half-lives of alpha-decay fine structure

2019 ◽  
Vol 28 (08) ◽  
pp. 1950067
Author(s):  
I. Sreeja ◽  
M. Balasubramaniam
Keyword(s):  
Experimental Data ◽  
Fine Structure ◽  
Ground State ◽  
Empirical Formula ◽  
Daughter Nucleus ◽  
Alpha Decay ◽  
Parent Nucleus ◽  
State Formula ◽  
Model Independent ◽  
Proton Radioactivity

A model-independent and [Formula: see text]-dependent four parameter formula has been recently proposed for the studies of one proton and two proton radioactivity. The same form of the formula with different parameter sets worked well for 1p and 2p emission indicating the fact that the similar phenomenological law is able to successfully reproduce both 1p as well as 2p emission half-lives suggesting the identical descriptions of these phenomena. Retaining the same form of the formula, its applicability is studied in this work for calculating the ground state as well as excited state [Formula: see text] emission. For this study, we consider 22 odd–odd nuclei, 31 odd–even nuclei, 52 even–odd nuclei, 88 even–even nuclei with the parent nucleus charge numbers in the range of [Formula: see text], [Formula: see text], [Formula: see text], and [Formula: see text], respectively. For each of these subsets the emission of [Formula: see text] with different angular momentum values are considered. The general formula with four different parameter sets is proposed and the obtained results are compared with the experimental data. The study reveals that the general form of the proposed empirical formula is suitable for calculating the half-lives of 1p, 2p and [Formula: see text]-emission with different [Formula: see text]-values. With very minimal input like [Formula: see text]-values, and charge number of the daughter nucleus, this formula can be used as a handy tool for a systematic study as well as to plan new experiments.

scholarly journals MODEL-INDEPENDENT ESTIMATES FOR THE ABELIAN Z′ BOSON AT MODERN HADRON COLLIDERS

2011 ◽  
Vol 26 (23) ◽  
pp. 4083-4100 ◽  
Author(s):  
ALEXEY GULOV ◽  
ANDREY KOZHUSHKO
Keyword(s):  
Experimental Data ◽  
Z Boson ◽  
Hadron Colliders ◽  
Present Experimental Data ◽  
Decay Widths ◽  
Model Independent

The model-independent constraints on the Abelian Z′ couplings from the LEP data are applied to estimate the Z′ production in experiments at the Tevatron and LHC. The Z′ total and partial decay widths are analyzed. The results are compared with model-dependent predictions and present experimental data from the Tevatron. If we assume the 1–2σ hints from the LEP data to be a signal of the Abelian Z′ boson, then the Tevatron data constrain the Z′ mass between 400 GeV and 1.2 TeV.

Interactions Between Nonionic Surfactant Monomers, Hydrophobic Organic Compounds and Soil

1992 ◽  
Vol 26 (1-2) ◽  
pp. 147-158 ◽  
Author(s):  
D. A. Edwards ◽  
Z. Liu ◽  
R. G. Luthy
Keyword(s):  
Experimental Data ◽  
Organic Carbon ◽  
Nonionic Surfactant ◽  
Organic Compounds ◽  
Aqueous Phase ◽  
Nonionic Surfactants ◽  
Bulk Solution ◽  
Organic Carbon Content ◽  
Hydrophobic Organic Compounds ◽  
Surfactant Sorption

Nonionic surfactant at aqueous-phase concentrations less than the CMC can affect the distribution of hydrophobic organic compounds (HOCs) in soil/aqueous systems. Sub-CMC levels of nonionic surfactant can enhance the apparent aqueous-phase HOC solubility, increase the soil organic carbon content due to surfactant sorption, and modify the value of the HOC soil/aqueous distribution coefficient. Experimental data quantifying these effects are presented for several HOCs and nonionic surfactants. A method is proposed for predicting the distribution of HOC between soil and bulk solution with sub-CMC aqueous-phase concentrations of nonionic surfactant.

scholarly journals Adverse Effects Of Combined Mycotoxins / Štetni Učinci Kombiniranih Mikotoksina

2012 ◽  
Vol 63 (4) ◽  
pp. 519-530 ◽  
Author(s):  
Maja Šegvić Klarić
Keyword(s):  
Experimental Data ◽  
Adverse Effects ◽  
Ochratoxin A ◽  
Aflatoxin B1 ◽  
Synergistic Effects ◽  
Animal Health ◽  
Statistical Design ◽  
Interaction Studies

AbstractThis article brings an overview of mycotoxin co-occurrence in foods in Croatia and neighbouring countries and experimental data from mycotoxin interaction studies involving Fusarium toxins, ochratoxin A (OTA), and aflatoxin B1 (AFB1). Only a few studies of combined mycotoxin toxicity have employed a mathematical/ statistical design, while others have used common statistics in order to compare the effects of mycotoxin mixtures with effects of single toxins. So far, most studies have observed additive or synergistic effects, suggesting that these mixtures pose a significant threat to human and animal health

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