Search results for "Polyp"

ANTIPROLIFERATIVE ACTIVITY OF CITRUS JUICES AND HPLC EVALUATION OF THEIR FLAVONOID COMPOSITION

2007

The antiproliferative activity of fresh fruit juices extracted from Citrus sinensis (cv. Washington Navel and cv. Sanguinello), C. deliciosa cv. Avana, C. clementina cv. Nules, C. aurantium subsp. myrtifolia , was evaluated against K562 (human chronic myelogenous leukemia), HL-60 (human leukemia) and MCF-7 (human breast adenocarcinoma) cell lines. All the juices tested showed antiproliferative activity. Moreover, the pattern of the main flavanone compounds in the juices has been determined by HPLC analysis.

Genomic DNA analysis of Red Palm Weevil: Rhynchophorus ferrugineus cytochrome oxidase subunit I-like (COI) gene, partial sequence; mitochondrial gi|2…

2008

E' deposita in Banca dati (http://www.ncbi.nlm.nih.gov/nuccore/EU780007.1) la parziale sequenza del gene della citocromo ossidasi I di Rhynchophorus ferrugineus (noto come punteruolo rosso) rinvenuto in Phoenix canariensis a Palermo (Italia).

Hereditary familial polyposis and Gardner’s syndrome: Contribution of the odontostomatology examination in its diagnosis and a case description

2005

La poliposis adenomatosa familiar (PAF) y su variante fenotípica, el síndrome de Gardner, constituyen una infrecuente patología hereditaria autosómica dominante. Se caracterizan por el desarrollo, generalmente durante la segunda y tercera década de la vida, de múltiples pólipos adenomatosos en el colon y en el recto. Estos pólipos tienen un riesgo elevado de transformación maligna subsiguiente, cosa que suele ocurrir en las décadas tercera y cuarta de la vida. Las manifestaciones fenotípicas de la PAF pueden ser muy variadas. Así, además de los pólipos colorrectales, los individuos afectos pueden presentar manifestaciones extracolónicas, entre las que se destacan: pólipos gastroduodenales, …

Introduction: Digital Filters and Filter Banks

2015

A basic operation of spectr is filterin. In this introductory chapter, processing of one- and two-dimensional signals by digital filters and filter banks is outlined. A polyphase implementation of multirate filtering is described. The application of filtering with IIR filters, whose transfer functions are rational, is described. Bases and frames in the signals’ space that are generated by perfect reconstruction filter banks are discussed. The Butterworth filters, which are used in further constructions, are introduced.

On the use of PET-LCP copolymers as compatibilizers for PET/LCP blends

1996

Copolyesters of poly[ethylene terephthalate) (PET) with a liquid crystalline polymer (LCP), SBH 1:1:2, have been synthesized by the polycondensation, carried out in the melt at temperatures up to 300 degrees C of sebacic acid (S), 4,4'-dihydroxybiphenyl (B), and 4-hydroxybenzoic acid (H) in the presence of PET. The PET-SBH copolyesters have been characterized by differential scanning calorimetry, scanning electron microscopy, X-ray diffraction, etc., and the relationships between properties and preparation conditions are discussed. The copolyesters show a biphasic nature, which is more evident for the products synthesized with a thermal profile comprising relatively lower temperatures (220-…

A PH-functionalized polyphosphazene: a macromolecule with a highly flexible backbone.

2006

Exercise as the master polypill of the 21st century for the prevention of cardiovascular disease

2015

To the Editor,The growing pandemic of cardiovascular diseases (CVD) has para-doxically paralleled advances in pharmacology, and CVD remains theleading cause of death worldwide. Therapeutic strategies aiming atcontrolling several CVD risk factors simultaneously in individualswithout evidence of CVD are expensive and difficult to implement.Thus, the development of fixed-dose drug combinations of antiplatelettogether with blood pressure (BP) and cholesterol-lowering drugs,i.e., polypills, is gaining attention to prevent CVD [1,2] and all-causemortality [3], even after an acute coronary syndrome [4]. Despite thepotential of polypills to increase adherence at a lower cost [5], peoplerandomized to …

Behaviour of Nb2O5/PPy contacts: From Schottky barriers to p-n junctions

2009

In this work, a study of the photoelectrochemical responses of Nb O /PPy contacts fabricated in both organic 2 5 and aqueous solutions is performed. From the comparison between the experimental data of PPy photodeposited on Nb O in organic and in aqueous solutions, it is evident that the medium used for the photodeposition 2 5 influences the absorption coefficient, the band gap and flat band potential values.

Controlling the thermoelectric properties of polymers: application to PEDOT and polypyrrole

2015

Poly(3,4-ethylenedioxythiophene) (PEDOT) and polypyrrole (PPy) films have been prepared by an electrochemical method in a three electrode cell. The films have been obtained at different oxidation levels regarded as bipolaron, polaron and neutral states by varying the voltage, as is usually done in conjugated heterocyclic polymers. The voltage (-0.2V1.0 V) has been applied versus a Ag/AgCl reference electrode, producing a variation of one order of magnitude in the electrical conductivity and the Seebeck coefficient of the films. In the voltage range explored, the electrical conductivity increases from 80 to 766 S cm(-1) in PEDOT and from 15 to 160 S cm(-1) in PPy, while the Seebeck coefficie…

A new BEDT-TTF salt and polypyrrole films containing the chiral polyoxometalate [H4Co2Mo10O38]6−

2005

Abstract The chiral polyoxometalate [H4Co2Mo10O38]6− has been used in the preparation of hybrid materials in the form of crystals or polymeric films. A new radical salt of the donor bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF or ET) containing the two enantiomers of this polyoxometalate has been obtained by electrocrystallization. This radical salt shows semiconducting behavior with room temperature conductivity of 9 S.cm−1 and activation energy of 40 meV. Polypyrrole films doped with a racemic mixture of polyoxometalates and also the enantiomerically pure (+)589-[H4Co2Mo10O38]6− have been prepared electrochemically. Circular dichroism experiments suggest that the chiral polyoxometalate…