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Showing 25 to 36 of 937 entries
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Chemical composition of the giant red sea cucumber, Parastichopus californicus, commercially harvested in Alaska.

Food science & nutrition

Bechtel PJ, Oliveira AC, Demir N, Smiley S.
PMID: 24804015
Food Sci Nutr. 2013 Jan;1(1):63-73. doi: 10.1002/fsn3.12. Epub 2013 Jan 08.

Giant red sea cucumbers, Parastichopus californicus, are commercially harvested in the U.S. Pacific Northwest; however, the nutritional and chemical properties of its edible muscle bands and body wall have not been fully elucidated. In particular are the fatty acid...

Mediterranean spotted fever: case series of 24 years (1989-2012).

SpringerPlus

Crespo P, Seixas D, Marques N, Oliveira J, da Cunha S, Meliço-Silvestre A.
PMID: 26090319
Springerplus. 2015 Jun 17;4:272. doi: 10.1186/s40064-015-1042-3. eCollection 2015.

PURPOSE: Mediterranean spotted fever (MSF) is the most prevalent zoonosis in Portugal. To characterize it's evolution between 1989 and 2012, the authors reviewed the cases diagnosed at their unit during this period.METHODS: Review of clinical records of patients with...

Quantum time scales and the classical limit: analytic results for some simple systems.

Physical review. E, Statistical, nonlinear, and soft matter physics

Oliveira AC, Nemes MC, Fonseca Romero KM.
PMID: 14524875
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Sep;68(3):036214. doi: 10.1103/PhysRevE.68.036214. Epub 2003 Sep 23.

We set up a semiclassical approximation which helps us clarify by means of several simple examples the rich variety of time scale in the quantum domain. The underlying structure of quantum and classical mechanics is so completly different that...

Kaitoku seamount and the mystery cloud of 9 april 1984.

Science (New York, N.Y.)

Walker DA, McCreery CS, Oliveira FJ.
PMID: 17781801
Science. 1985 Feb 08;227(4687):607-11. doi: 10.1126/science.227.4687.607.

On 9 April 1984, commercial airlines enroute from Tokyo, Japan, to Anchorage, Alaska, reported an unusual mushroom-shaped cloud at about 38.5 degrees N, 146.0 degrees E. On 8 and 9 April the intensity of volcanism from Kaitoku Seamount (26.0...

Focused-microwave-assisted reaction in flow injection spectrophotometry: a new liquid-vapor separation chamber for determination of reducing sugars in wine.

Talanta

Oliveira AF, Fatibello-Filho O, Nóbrega JA.
PMID: 18968414
Talanta. 2001 Oct 31;55(4):677-84. doi: 10.1016/s0039-9140(01)00508-2.

The usefulness of an unsegmented liquid/vapor phases flow injection system for determining reducing sugars in wines using a focalized poly(tetrafluoroethylene) (PTFE) coiled reactor positioned at the output antenna of a domestic microwave oven at 700 W is demonstrated. In...

Niobium(V) oxide coated on thin glass-ceramic rod as a solid phase microextraction fiber.

Talanta

Oliveira AF, Silveira CB, Campos SD, Campos EA, Carasek E.
PMID: 18969964
Talanta. 2005 Mar 31;66(1):74-9. doi: 10.1016/j.talanta.2004.09.028. Epub 2004 Dec 08.

The efficiency of niobium(V) oxide as a sorbent phase for solid phase microextraction (SPME) was investigated. The thin glass-ceramic rod was coated with niobium(V) oxide using chemical vapor deposition and Nb(2)O(5) as a chemical precursor. Optimum conditions for the...

Cobalt as internal standard for arsenic and selenium determination in urine by simultaneous atomic absorption spectrometry.

Talanta

Correia PR, Oliveira PV.
PMID: 18970135
Talanta. 2005 Jul 15;67(1):46-53. doi: 10.1016/j.talanta.2005.02.002. Epub 2005 Mar 02.

The effectiveness of internal standardization for simultaneous atomic absorption spectrometry (SIMAAS) was investigated for As and Se determination in urine. Co and Sn were selected as internal standard (IS) candidates based on the evaluation of some physico-chemical parameters related...

Vitamin E or coenzyme Q10 administration is not fully advantageous for heart mitochondrial function in diabetic goto kakizaki rats.

Mitochondrion

Oliveira PJ, Seica R, Santos DL, Rolo AP, Sardao VA, Ferreira FM, Palmeira CM, Santos MS, Moreno AJ.
PMID: 16120365
Mitochondrion. 2004 May;3(6):337-45. doi: 10.1016/j.mito.2004.02.005.

The heart is one of the organs affected during the later stages of diabetes. Mitochondrial function has already been proposed to be affected during the course of diabetes. Nevertheless, little information is known concerning the impact of antioxidants in...

Conserved lattice gas model with infinitely many absorbing states in one dimension.

Physical review. E, Statistical, nonlinear, and soft matter physics

Oliveira MJ.
PMID: 15697663
Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Jan;71(1):016112. doi: 10.1103/PhysRevE.71.016112. Epub 2005 Jan 11.

The conserved lattice gas model with infinitely many absorbing states is studied on a chain and on a ladder. In both one-dimensional lattices it exhibits a phase transition from an absorbing phase to an active state. The model defined...

Some features associated with organosilane groups grafted by the sol-gel process onto synthetic talc-like phyllosilicate.

Journal of colloid and interface science

Sales JA, Petrucelli GC, Oliveira FJ, Airoldi C.
PMID: 16325838
J Colloid Interface Sci. 2006 May 01;297(1):95-103. doi: 10.1016/j.jcis.2005.10.019. Epub 2005 Dec 02.

Two new lamellar inorganic-organic magnesium silicates have been successfully synthesized by using sol-gel based processes under mild temperature conditions. The talc-organosilicates derived using two silylating agents as the silicon source, (i) 3-chloropropyltrimethoxysilane, and (ii) from the attachment of 5-amino-1,3,4-thiadiazole-2-thiol...

Monitoring of molecular transformations in acid-base reactions by evolving factor analysis of Fourier transform infrared spectral data.

Talanta

Esteves da Silva JC, Machado AA, Oliveira CJ.
PMID: 18966623
Talanta. 1996 Sep;43(9):1443-56. doi: 10.1016/0039-9140(96)01911-X.

An evolving factor analysis procedure with concentration constraints (gradient concentration window) was applied to the analysis of data sets of aqueous Fourier transform infrared (FT-IR) spectra of carboxylic acids (acetic, malonic and succinic acids) collected in experiments with varying...

Optical, structural and electrical investigations of TiO2/multi-walled carbon nanotube composites.

Journal of nanoscience and nanotechnology

Castro MR, Oliveira PW, Schmidt HK.
PMID: 19916402
J Nanosci Nanotechnol. 2009 Jul;9(7):4016-21. doi: 10.1166/jnn.2009.m04.

Nanocomposites of TiO2 and multi-walled carbon nanotubes (MWNTs) were produced by the addition of different concentrations of MWNTs to a TiO2 sol matrix. Conductive coatings were prepared by spin coating the nanocomposite sols on glass substrates and sintering the...

Showing 25 to 36 of 937 entries