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Polymers (Basel) ; 14(3)2022 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-35160388


The goal of this study was to create a high-filled composite material based on polysulfone using various graphite materials. Composite material based on graphite-filled polysulfone was prepared using a solution method which allows the achievement of a high content of fillers up to 70 wt.%. Alongside the analysis of the morphology and structure, the thermal conductivity and mechanical properties of the composites obtained were studied. Structural analysis shows how the type of filler affects the structure of the composites with the appearance of pores in all samples which also has a noticeable effect on composites' properties. In terms of thermal conductivity, the results show that using natural graphite as a filler gives the best results in thermal conductivity compared to artificial and expanded graphite, with the reduction of thermal conductivity while increasing temperature. Flexural tests show that using artificial graphite as a filler gives the composite material the best mechanical load transfer compared to natural or expanded graphite.

Prog Cardiovasc Nurs ; 24(4): 141-8, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20002338


Patients with heart failure (HF) face significant challenges in maintaining quality of life (QOL), particularly for sexual intimacy. Although recommended for all cardiac patients, it has been suggested that few HF patients receive sexual counseling. This study explored sexual counseling needs, sexual concerns, and sexual activity using a descriptive survey with HF patients (n = 45), recruited from a HF clinic or cardiology office. Most (77%) had not discussed sexual concerns with a health care professional (HCP). Sexual concerns that were rated as occurring 'occasionally/frequently' included partner overprotectiveness (63%), partner fear of sex (36%), lack of sexual interest (42%), erectile problems (74%), orgasmic difficulties (51%). Frequency of sexual intercourse before HF to present was striking, with 53% reporting no sexual activity in the last 2 months compared with 11% before diagnosis of HF. HCPs must provide sexual counseling to HF patients and partners to enhance QOL and to assist in any adaptations to sexual activity.

Insuficiência Cardíaca/complicações , Qualidade de Vida , Aconselhamento Sexual , Comportamento Sexual , Disfunções Sexuais Fisiológicas/etiologia , Estresse Psicológico , Adaptação Psicológica , Adulto , Idoso , Idoso de 80 Anos ou mais , Ansiedade/etiologia , Cardiomiopatia Dilatada , Estudos Transversais , Depressão/etiologia , Feminino , Indicadores Básicos de Saúde , Insuficiência Cardíaca/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria , Inquéritos e Questionários