in this work, a selective method for separation and preconcentration of nickel ions at trace level on modified multiwalled carbon nanotubes columns and determination by flame atomic absorption spectrometry (faas) has been developed. multiwalled carbon nanotubes were oxidized with concentrated hno3 and then modified with loading 1-(2-pyridylazo)-2-naphtol. the sorption of ni(ii) ions was quantit...

The effects of a hepaticoactivator, diisopropyl 1, 3-dithiol-2-ylidene malonate (NKK-105), on motoricity and EEG were observed int he rat, mouse, cat and man. NKK-105 suppressed the effects of ethanol (1,000-3,000 mg/kg, p.o., in mice and rats), e.g. the blood alcohol concentration of NKK-105 treated subjects was significantly lower than that of untreated controls. NKK-105, in 100-300 mg/kg p.o...

See Feller [4, Chap. 15] for the relevant theory. Let da be defined as the probability that the state, initially supposed to be i, takes on the value j at least once before returning to i. The quantities da turn out to be very useful. In §2 we derive some identities to be used in the sequel. In §3 we consider the distribution of the recurrence time Nkk under the assumptions (1.2) and (1.3), for...

This work assesses the use of modified natural natrolite zeolite as an adsorptive material for the separation and preconcentration of trace amounts of ions. In this work we investigated the potential of modified natural natrolite zeolite for the simultaneous separation and preconcentration of trace amounts of copper and zinc ions. We have developed a simple, rapid, selective, sensitive and econ...

Inflaton field governed universe from NKK theory of gravity: stochastic approach. Abstract We study a nonperturbative single field (inflaton) governed cosmological model from a 5D Noncompact Kaluza-Klein (NKK) theory of gravity. The inflaton field fluctuations are estimated for different epochs of the evolution of the universe. We conclude that the inflaton field has been sliding down its (quad...

Inflaton field governed universe from NKK theory of gravity: stochastic approach. Abstract We study a nonperturbative single field (inflaton) governed cosmological model from a 5D Noncompact Kaluza-Klein (NKK) theory of gravity. The inflaton field fluctuations are estimated for different epochs of the evolution of the universe. We conclude that the inflaton field has been sliding down its (quad...

Editor: Maria Kapritsou. Received: June 18, 2014; rev From the Section of Colon a SHB, KYL, NKK), Departm tion Unit (DWK), Yonsei Uni Correspondence: Seung Hy University College of Me 120-752, Korea (e-mail: w The authors have no funding Copyright © 2014 Wolters Wilkins. This is an open ac Commons Attribution-NonCo it is permissible to downlo medium, provided it is prop any way or used commerci...

This study investigates the underlying tonal pattern of pitch accent, the domain of tone interaction, and the prosodic structure of Northern Kyungsang Korean (NKK) by examining tone-syllable alignment and the realization of pitch accent in different tonal/prosodic contexts. Sixty-four sentences produced by six native speakers of NKK were digitized and f0 values of each syllable as well as the f...