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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
261

Análise comparativa do teste imunocromatográfico DPP-Biomanguinhos com ELISA e RIFI no diagnóstico da leishmaniose visceral canina / Comparative analysis of DPP-Biomanguinhos immunoassay with ELISA and IFAT for the diagnosis of canine visceral leishmaniasis

Marcos Vinicius de Santana Leandro Junior 26 May 2014 (has links)
Com o objetivo de avaliar o desempenho do teste rápido DPP® LVC comparando com os testes de ELISA e RIFI (Bio-Manguinhos, Br), assim como ELISA e RIFI in-house, empregando como antígeno formas promastigotas de L. (L.) infantum chagasi, com ênfase a reatividade cruzada com outros agentes infecciosos, soros de cães infectados por L. (L.) infantum chagasi, clinicamente sintomáticos (n=48) e assintomáticos (n=39), assim como soros de cães sadios e não infectados (n=18), e soros de cães infectados por Babesia canis (n=9), Dirofilaria immitis (n=4), Trypanosoma cruzi (n=6), Ehrlichia canis (n=17), Neospora caninum (n=6), Toxoplasma gondii (n=9), Neospora/Toxoplasma coinfecção (n=4) e Toxocara canis (n=9) foram avaliados pelas diferentes técnicas de diagnóstico. DPP e ELISA in-house mostraram alta sensitividade (90.81% e 94.25%) e especificidade (95.06% e 97.53%), respectivamente para o diagnóstico de LVC sintomática e assintomática, mas apresentaram reação cruzada com Babesia canis, 44% para DPP e 22% para ELISA in-house. Os dois testes mostraram uma excelente concordância de resultados (kappa=0.9405, p < 0.0001). ELISA Bio-Manguinhos assim como o RIFI Bio-Manguinhos e RIFI in-house mostraram boa sensitividade (90.81%, 96.47% e 89.41%), mas baixa especificidade (77.78%, 69.14% e 65.82%), respectivamente; e mostraram reação cruzada com soros de animais infectados com Babesia canis, Dirofilaria immitis, Trypanosoma cruzi, Ehrlichia canis, Neospora caninum, Toxoplasma gondii. Os resultados mostraram que o DPP® CVL apresentou um bom desempenho para o diagnóstico da leishmaniose visceral canina sintomática e assintomática / In order to investigate the performance of the DPP® CVL rapid test comparing with ELISA and IFA (Bio-Manguinhos, Br), as well as ELISA and IFAT in house using L. (L.) infantum chagasi promastigotes as antigen with emphasis in the cross-reactivity with others infectious agents, sera from clinically symptomatic (n=48) and asymptomatic (n=39) L. (L.) infantum chagasi infected dogs, as well as from healthy non-infected (n=18) dogs and from Babesia canis (n=9), Dirofilaria immitis (n=4), Trypanosoma cruzi (n=6), Ehrlichia canis (n=17), Neospora caninum (n=6), Toxoplasma gondii (n=9), Neospora/Toxoplasma co-infection (n=4) and Toxocara canis (n=9) infected dogs were tested for different diagnosis techniques. DPP and ELISA in-house showed high sensitivity (90.81% and 94.25%) and specificity (95.06% and 97.53%), respectively for symptomatic and asymptomatic CVL diagnosis, but presented cross-reactivity with Babesia canis, 44% for DPP and 22% for ELISA in-house. Both test showed an excellent agreement (kappa=0.9405, p < 0.0001). ELISA Bio-Manguinhos as well as IFA Bio-Manguinhos and IFA in-house showed good sensitivity 90.81%, 96.47% and 89.41%) but low specificity (77.78%, 69.14% and 65.82%), respectively; and showed cross-reactivity with sera from animals infected with Babesia canis, Dirofilaria immitis, Trypanosoma cruzi, Ehrlichia canis, Neospora caninum, Toxoplasma gondii. The results showed that DPP® CVL had a good performance for the diagnosis of of both symptomatic and asymptomatic canine visceral leishmaniasis
262

Third Place Winner of the Conrad Jobst Award in the Gold Medal Paper Competition. Prevention of Spinal Cord Dysfunction in a New Model of Spinal Cord Ischemia

Lopez, S, Manahan, E, Evans, J. R., Kao, R. L., Browder, W. 01 January 1995 (has links)
Paraplegia or paraparesis caused by temporary cross-clamping of the aorta is a devastating sequela in patients after surgery of the thoracoabdominal aorta. No effective clinical method is available to protect the spinal cord from ischemic reperfusion injury. A small animal (rat) model of spinal cord ischemia is established to better understand the pathophysiological events and to evaluate potential treatments. Eighty-one male Sprague-Dawley rats weighing 300 g to 350 g were used for model development (45) and treatment evaluation (36). The heparinized and anesthetized rat was supported by a respirator following tracheostomy. The thoracic aorta was cannulated via the left carotid artery for post-clamping intra-aortic treatment solution administration. After thoracotomy, the aorta was freed and temporarily clamped just distal to the left subclavian artery and just proximal to the diaphragm for different time intervals: 0, 5, 10, 15, 20, 25, 30, 35, and 40 minutes (five animals per group). The motor function of the lower extremities postoperatively showed consistent impairment after 30 minutes clamping (5/5 rats were paralyzed), and this time interval was used for treatment evaluation. For each treatment, six animals per group were used, and direct local intra-aortic infusion of physiologic solution (2 mL) at different temperatures with or without buffer substances was given immediately after double cross-clamp to protect the ischemic spinal cord. Arterial blood (2 mL) was infused in the control group. The data indicate that the addition of HCO3-(20 mM) to the hypothermic (15 degrees C) solution offered complete protection of the spinal cord from ischemic injury.(ABSTRACT TRUNCATED AT 250 WORDS)
263

ENVIRONMENTAL EDUCATION EFFECTS ON PERCEPTION OF RECREATIONAL AND SCENIC QUALITIES OF FOREST BURN AREAS.

TAYLOR, JONATHAN GOLDING. January 1982 (has links)
The purpose of this study has been to test public perceptions of both scenic quality and recreational acceptability of southwestern ponderosa pine forests exibiting one-to-five years of recovery from both light and severe fire. Public fire-effects information documents were also constructed and tested. Appropriate ponderosa forest areas in Arizona were selected and randomly photographed. Population samples, drawn from Tucson, Arizona, first read fire-ecology or "control" information brochures and then rated forest scenes on 1-to-10 scales for scenic quality and for acceptability for selected forms of outdoor recreation. Respondents finally answered a short fire-knowledge, fire-attitude questionnaire. Ratings were subjected to SBE analysis (Daniel and Boster, 1976), and analysis of variance was applied to both ratings and questionnaire results. The clearest distinction drawn, for both scenic quality and recreational acceptability, is between light-fire and severe-fire effects. Light fire improves scenic quality for a 3-to-4 year period, while severe fire seriously detracts from scenic quality for an unknown length of time exceeding the 5-year period tested. Recreational acceptability is differentiated according to the recreational activity selected: camping is nearly twice as sensitive to severe fire effects as scenic quality, and is somewhat disrupted by light fire effects; picnicking is second-most impacted by severe fire effects; hiking or backpacking is affected by severe fire to about the same degree as scenic quality; nature study is least affected. Picnicking, hiking and nature study are not significantly affected by light fire. Provision of fire-effects information does not significantly affect scenic or recreational evaluation of forest burn areas. The fire-effects information brochures produced general "halo" effects on both fire knowledge and fire attitude in the groups sampled. Fire knowledge shifted toward the expert position that fire effects are less severe than generally believed. Fire attitude shifted toward the expert position of greater tolerance for fire in ponderosa ecosystems. Results show prescribed burning as generally acceptable. The results of this study demonstrate distinctions between affect (perceptual evaluations) and cognition (questionnaire response). Scenic and recreational evaluations emerge as clearly distinct entities.
264

The effects of fluoride levels in potable water: case studies in the Northern Cape and Mitchell's Plain.

Rayner, Chrisleen Ann January 2006 (has links)
<p>Dental caries is a multi-factorial disease that affects everyone irrespective of race, class or gender, however, the burden of the disease is often found in children from lower socio-economic backgrounds. The nature of the disease is such that it can be prevented. Various international studies on fluoride have shown a reduction in the prevalence of dental caries. By using geographical information systems, oral health data can be linked to the fluoride levels and further analysis could be done to identify areas at risk of dental caries as well as show patterns in the distribution of dental caries. The aim of this study was therefore to assess the effects of different levels of fluoride on the prevalence of dental caries in selected towns in the Northern Cape and Westen Cape. It also examined the application of Geographical Information Systems (GIS) to oral health data.</p>
265

Crude extracts of solvents isolated from cannabis sativa plant extracts inhibit growth and induce apoptosis in cervical cancer cells

Lukhele, Sindiswa Thandeka 10 May 2016 (has links)
A dissertation submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Masters in Science. December 2015 / Cervical cancer remains a global health related issue among females of Sub-Saharan Africa, with over half a million new cases reported each year. Different therapeutic regimens have been suggested in various regions of Africa, however, over a quarter of a million women die of cervical cancer, annually. This makes it the most lethal cancer amongst black women in this area, and makes it important to search for new effective therapeutic drugs through screening of medicinal plant extracts used by many in Sub-Saharan Africa as potential anti-cervical cancer agents. The aim of this study was to evaluate the anti-proliferative effects of Cannabis sativa extracts and its isolate, cannabidiol on cervical cancer cell lines HeLa, SiHa, and ME-180. To achieve our aim, phytochemical screening, MTT assay, cell growth analysis, flow cytometry, morphology analysis, Western blot, caspase 3/7 assay, and ATP measurement assay were conducted were conducted. Results obtained indicate that both plant extracts induced cell death at an IC50 of 50 – 100μg/ml and the Inhibition of cell growth was cell line dependent. Flow cytometry confirmed that, with or without cell cycle arrest, the type of induced cell death was apoptosis. Cannabis sativa extracts led to the up-regulation of apoptosis proteins (p53, Bax, caspase-3, and caspase-9) and the down regulation of anti-apoptosis proteins (Bcl-2 and RBBP6), signalling the execution of apoptosis. Apoptosis induction was further confirmed by morphological changes, an increase in Caspase 3/7 and a decrease in the ATP levels. In conclusion, this data implies Cannabis sativa crude extracts has the potential to inhibit growth and induce apoptosis in cervical cancer cell lines, which may be due to the presence of cannabidiol. Key words: Apoptosis, cervical cancer cells, cannabidiol, and Cannabis sativa extracts
266

Efeitos de um programa de prevenção de quedas no desempenho físico-funcional e saúde mental de idosos participantes de uma Universidade Aberta à Terceira Idade / Effects of a fall prevention program on the physical-functional performance and mental health of older adults participants of an Open University of the Third Age

Silva, Vilmar Mineiro da 22 April 2019 (has links)
A queda é um problema de saúde que envolve políticas públicas, sendo sua prevenção um desafio para os profissionais da saúde. Programas de exercícios físicos combinados, que envolvem dois ou mais dos seguintes componentes: resistência muscular, equilíbrio, resistência aeróbia e flexibilidade, são considerados as intervenções isoladas com maior efeito sobre o risco e a ocorrência de quedas. Por outro lado, não está claro na literatura se programas de intervenções com múltiplos fatores, ou seja, diferentes abordagens oferecidas de forma coletiva e em grupo, trazem efeitos adicionais a saúde dos idosos. Objetivo: Avaliar os efeitos do treinamento físico combinado, associado ou não a educação para prevenção de quedas, no desempenho físico-funcional e saúde mental de idosos. Métodos: participaram do presente do estudo 51 idosos, de ambos os sexos, com idade entre 60-80 anos, que foram divididos em três grupos: 1) grupo controle (GC, n=15), 2) grupo exercício (GE, n= 20) e 3) grupo intervenção múltipla (GIM, n=16). Antes e após o período de segmento, os idosos foram submetidos a 1) questionário estruturados incluindo questões sobre dados sociodemográficos, dados de saúde e histórico de quedas, 2) avaliação da saúde mental (escala de depressão geriátrica, GDS e mini-exame do estado mental, MEEM), 3) escalas sobre auto-eficácia para quedas (Falls Efficacy Scale-International, FES-I) e conhecimento sobre fatores de risco para as mesmas (Falls Risk Awareness Questionnaire, FRAQ), 4) testes físico-funcionais (timed up and go, TUG; sentar e levantar da cadeira. STS e força de preensão palmar, HG). Os grupos GE e GIM foram submetidos a duas sessões (60 min) semanais de exercícios combinados (resistência muscular, caminhada, equilíbrio e duplatarefa) por 16 semanas. O GIM participou também de 16 sessões educativas semanais sobre fatores de risco e prevenção de quedas. Para todas as análise, considerou-se um alfa de 5%. Resultados: foi observado interação entre tempo e grupo para a mobilidade, com melhora do tempo no teste de TUG para os grupos submetidos ao treinamento físico. Adicionalmente, foi constatado efeito médio e negativo da não participação das sessões de exercícios físicos na força de membros inferiores dos idosos do GC (g de Hedges: 0,54). Os idosos do GIM obtiveram, ainda, ganhos adicionais no desempenho do MEEM e na pontuação da FRAQ. Conclusão: a intervenção múltipla, envolvendo a associação entre exercícios físico combinados e atividades educativas, trás benefícios adicionais a idosos participantes de UnATI. Além da melhora na mobilidade e manutenção da força muscular dos membros inferiores, os idosos do grupo intervenção múltipla mostraram maior conhecimento sobre fatores de risco para quedas, o que pode ser útil na implementação de estratégias para identificação de fatores e redução de comportamentos de risco para quedas no dia-a-dia / Falls are a health problem involving public policies, making its prevention a challenge for health care professionals. Combined physical exercise programs, involving two or more of the following components: muscular resistance, balance, aerobic resistance and flexibility, are considered isolated interventions with greater results over the risk and occurrence of falls. Nevertheless, it is not clear in the literature, if intervention programs with multiple factors, meaning, multiple approaches offered in a group or in a collective way, bring additional results to the health of the older adults. Objective: To evaluate the effects of combined training, associated or not with education for fall prevention, on functional physical performance and mental health of older adults. METHODS: 51 older adults of both sexes (60- 80 years old), from an Open University of the Third Age (U3A) participated in a study, they were divided into 3 groups: Control Group: (CG, n=15), 2) Exercise Group (EG, n=20) and 3) Multiple Intervention Group (MIG, n=16). Before and after the follow up period, the older adults were submitted to 1) structured questionnaires including sociodemographic data, health information and any history of falls. 2) Mental health evaluation (geriatric depression scale, GDS and mini-exam of mental state, MEEM). 3) Scales pertaining to self-efficacy on falls (Falls Efficacy Scale-International, FES-I) and knowledge of risk factors on falls (Falls Risk Awareness Questionnaire, FRAQ) 4) physical-functional testes (times up and go, TUG, 5- times sit and stand up from a chair. STS and isometric grip strength, HG). The groups EG and MIG were submitted to 2 weekly sessions (60min each) of combined exercises (muscular resistance, walking, balance and dual-task) for 16 weeks. The MIG group also participated in 16 educational weekly sessions regarding risk factors and fall prevention. On all analysis, a 5% alfa was considered. Results: it was observed that interaction between time and group for mobility, with improvement in the time of the TUG test for the groups submitted to physical training. In addition, moderate and negative effects were found in the non-participation of the physical exercise sessions for lower limb strength of the older adults elderly in the CG (Hedges g = 0.54). The older adults from the MIG group obtained, moreover, additional gains in the performance of the MEEM and of the FRAQ. Conclusion: the multiple intervention, involving the association between combined physical exercises and educational activities, bring additional benefits to the older adults participating in the U3A. Besides the improvement in mobility and maintenance of the lower limb muscular strength, the older adults from the multiple intervention group demonstrated greater knowledge about risk factors regarding falls, which can be instrumental and useful in the implementation of strategies for identification factors and reduction of risk behavior on falls in the day-to-day
267

Asthma control in Latin America: the Asthma Insights and Reality in Latin America (AIRLA) survey.

Neffen, Hugo, Fritscher, Carlos, Schacht, Francisco Cuevas, Levy, Gur, Chiarella, Pascual, Soriano, Joan B, Mechali, Daniel 01 March 2005 (has links)
Objectives. The aims of this survey were (1) to assess the quality of asthma treatment and control in Latin America, (2) to determine how closely asthma management guidelines are being followed, and (3) to assess perception, knowledge and attitudes related to asthma in Latin America. Methods. We surveyed a household sample of 2 184 adults or parents of children with asthma in 2003 in 11 countries in Latin America. Respondents were asked about healthcare utilization, symptom severity, activity limitations and medication use. Results. Daytime asthma symptoms were reported by 56% of the respondents, and 51 % reported being awakened by their asthma at night. More than half of those surveyed had been hospitalized, attended a hospital emergency service or made unscheduled emergency visits to other healthcare facilities for asthma during the previous year. Patient perception of asthma control did not match symptom severity, even in patients with severe persistent asthma, 44.7% of whom regarded their disease as being well or completely controlled. Only 2.4% (2.3% adults and 2.6% children) met all criteria for asthma control. Although 37% reported treatment with prescription medications, only 6% were using inhaled corticosteroids. Most adults (79%) and children (68%) in this survey reported that asthma symptoms limited their activities. Absence from school and work was reported by 58% of the children and 31% of adults, respectively. Conclusions. Asthma control in Latin America falls short of goals in international guidelines, and in many aspects asthma care and control in Latin America suffer from the same shortcomings as in other areas of the world. / Revisión por pares
268

Comparação do potencial erosivo de duas fontes ácidas sobre o esmalte e avaliação de métodos de controle da erosão dental / Comparison of the erosive potential of two acidic sources in enamel and evaluation of treatments for prevention of dental erosion

Braga, Sheila Regina Maia 01 September 2009 (has links)
Erosão dental é definida como a perda irreversível de tecido duro dental por um processo químico que não envolve bactérias. O objetivo deste trabalho foi comparar in vitro o potencial erosivo de duas fontes ácidas e avaliar métodos de controle da erosão dental em esmalte. Para a comparação das fontes ácidas, coroas de 5 molares inclusos foram seccionadas em quatro, totalizando 20 espécimes. Nos espécimes, uma superfície de esmalte (janela) de 3 x 3 mm foi delimitada. Os espécimes foram submetidos ao desafio erosivo em suco gástrico (obtido durante endoscopia) (n=10), ou suco de laranja (industrializado) (n=10), como segue: 5 minutos em 3 ml de solução ácida, enxágue com água destilada e armazenagem em saliva artificial por 3 horas. Este ciclo foi repetido 4 vezes ao dia por 14 dias. O cálcio (Ca) eliminado dos espécimes na solução ácida foi quantificado por Espectrometria de emissão atômica. A presença de carbonato (CO) e fosfato (PO) foi avaliada nos espécimes antes e após o desafio erosivo pela Espectroscopia FT-Raman. Para a avaliação dos métodos de controle da erosão quarenta espécimes de esmalte de molares inclusos foram distribuídos para cada um dos métodos propostos (n=10): gel de flúor fosfato acidulado (APF 1,23%), laser de Nd:YAG (100 mJ, 1 W, 10 Hz), associação flúor + laser e laser + flúor. Os métodos de controle foram aplicados 1 hora antes do desafio erosivo já descrito, realizado com ácido clorídrico (0,01 M/pH 2,2) como fonte ácida. O flúor foi mantido por 4 minutos sobre a superfície de esmalte. A superfície foi irradiada, com contato, após aplicação de um fotoabsorvedor. As associações foram feitas utilizando o flúor e o laser como descrito anteriormente. A perda de Ca dos espécimes foi quantificada por Espectrometria de emissão atômica e a rugosidade superficial dos espécimes (Ra) foi avaliada antes e após o desafio erosivo. Na comparação das fontes ácidas, os espécimes submetidos à erosão perderam: 12,74 ± 3,33 mg/L de Ca (suco gástrico) e 7,07 ± 1,44 mg/L de Ca (suco de laranja) (p=0,0003). A análise em Espectroscopia FT-Raman não detectou alteração significativa na razão CO/PO após o desafio ácido. Os valores CO/PO antes e depois do desafio foram: 0,16/0,17 (suco gástrico) (p=0,37) e 0,18/0,14 (suco de laranja) (p=0,16). Na avaliação dos métodos de controle da erosão, as perdas de Ca foram (mg/L): APF 1,707a (± 0,113), Nd:YAG 1,638a (±0,080), APF + Nd:YAG 1,385b (±0,078), Nd:YAG + APF 1,484b (±0,068). A rugosidade média inicial dos espécimes foi de 0,14 m. Após o desafio erosivo a rugosidade apresentou significativo aumento (p<0,01): APF 0,69bc (±0,091), Nd:YAG 0,87a (±0,119), APF + Nd:YAG 0,61c (±0,090) e Nd:YAG + APF 0,72b (±0,069). Foi possível concluir que o suco gástrico apresentou potencial erosivo ao esmalte maior que o suco de laranja. A associação entre flúor e laser apresentou-se mais eficaz no controle da erosão dental do que os métodos isoladamente. / Dental erosion is defined as irreversible loss of dental hard tissue due to chemical processes without the involvement of microorganisms. The aim of this study was to compare in vitro the erosive potential of two acidic sources and evaluate the effectiveness of treatments for prevention of dental erosion. To compare the acidic sources, crowns of 5 unerupted human third molars were sectioned in four, totalizing 20 enamel slabs. In the slabs, a test surface (window) of 3 x 3 mm was delimited. The specimens were submitted to erosive challenge into gastric juice (from endoscopy exam) (n=10), or orange juice (industrialized) (n=10), as follows: 5 minutes in 3 ml of acidic solution, rinse with distilled water and stored in artificial saliva for 3 hours. This cycle was repeated for four times a day during 14 days. Calcium (Ca) loss after acid exposure was determined by atomic emission spectroscopy. The presence of carbonate (CO) and phosphate (PO) in the specimens was evaluated before and after the erosive challenge by FT-Raman spectroscopy. To evaluate the treatments for prevention of dental erosion, forty enamel specimens of unerupted human third molars were distributed according to the following treatments (n=10): acidic phosphate fluoride gel (APF 1.23%), Nd:YAG laser (100 mJ, 1 W, 10 Hz), and the associations fluoride + laser and laser + fluoride. These treatments were applied 1 hour before the erosive challenge, which, in this phase was made with hydrochloric acid only (0.01 M/pH 2.2). The fluoride was applied on the enamel surfaces for 4 minutes. The irradiation of enamel surface was made in the contact mode after coating with a photo-activator. The associations were done using fluoride and laser like describe before. The Ca loss was determined by atomic emission spectroscopy and superficial roughness (Ra) was measured before and after the erosive challenge. In the comparison of the acidic sources, the mean loss of Ca were: 12.74 ± 3.33 mg/L Ca (gastric juice) and 7.07 ± 1.44 mg/L Ca (orange juice) (p=0.0003). The FT-Raman spectroscopy found no statistically significant difference in the ratio CO/PO after the erosive challenge. The CO/PO ratios values before and after the challenge were: 0.16/0.17 (gastric juice) (p=0.37) and 0.18/0.14 (orange juice) (p=0.16). In the evaluation of the treatments, the mean Ca loss were (mg/L): APF 1.707a (± 0.113), Nd:YAG 1.638a (±0.080), APF + Nd:YAG 1.385b (±0.078), Nd:YAG + APF 1.484b (±0.068). The mean initial roughness of specimens was 0.14 m. After the erosive challenge the roughness showed a significant increase (p<0.01): APF 0.69bc (±0.091), Nd:YAG 0.87a (±0.119), APF + Nd:YAG 0.61c (±0.090) and Nd:YAG + APF 0.72b (±0.069). It was concluded that gastric juice has higher erosive potential to enamel than orange juice and the association between fluoride and laser was more efficient for the prevention of dental erosion than both methods separately.
269

Estudo do envelhecimento cutâneo e da eficácia cosmética de substâncias ativas empregadas em combatê-lo / Study of cutaneous aging and the cosmetic efficacy of active substances used to combat it

Scotti, Luciana 18 December 2002 (has links)
O envelhecimento cutâneo tem grande importância na pesquisa, influenciando muito no bem-estar psíquico do indivíduo e nos relacionamentos sociais, na auto-estima e na qualidade de vida. Devido a isso, é dado crescente valor à aparência e, cada vez mais as pessoas buscam a juventude da pele, visando mantê-la firme, macia, com aparência saudável e homogeneamente pigmentada. A Cosmetologia busca entender profundamente este processo, desenvolvendo diversas formulações que retardam o envelhecimento cutâneo, com ações emoliente, umectante, hidratante, tonificante, fotoprotetora e uniformizadora da textura da pele. Para atingir isto, os produtos cosméticos incorporam vitaminas, oligoelementos, extratos vegetais, antioxidantes, alfa e beta hidroxiácidos e protetores solares, dentre outros. O público está mais exigente, esclarecido e interessado nos efeitos reais das formulações cosméticas, e menos enganáveis pela falsa publicidade. Portanto, os cosmetólogos estão constantemente pesquisando substâncias novas para combater e principalmente, prevenir o envelhecimento cutâneo. Novas formulações têm sido desenvolvidas com substâncias que possam atingir a eficácia pretendida e que sejam seguras ao usuário. / The cutaneous aging has great importance in the research. It largely influences not only on the psychic well-being of the individual but also on the social relationships, self-respect and quality of life. Due to this, increasing value has been given to the appearance and, people are looking for the youth of the skin, in order to keep it firm, soft, healthy and with homogeneous pigmentation. Cosmetology tries to understand this process, developing some formulations that delay the skin aging, with emollient, humectant, moisturizing, tonic, photoprotective and conditioning skin actions. In order to reach that, vegetable extracts, vitamins, antioxidants, oligoelements, sunscreens, alpha and beta hydroxy acids, and other substances are incorporated in the cosmectic products. Nowadays, the people are more demanding, clarified and interested in the real effects of the cosmetic formulations, and they are not so easily-fooled. Therefore, the cosmetic experts are often researching new substances in order to attack and mainly to prevent the cutaneous aging, and for this new formulations have been developed with substances which are able to reach the intended effectiveness and that are safe.
270

O uso de diagnósticos e intervenções de enfermagem na prevenção e controle de infecções relacionadas à assistência à saúde / The use of nursing and interventions in the prevention and control of infections related to health care

Santos, Talita Raquel dos 22 December 2016 (has links)
Introdução: A participação do profissional de enfermagem na prevenção e controle de infecção dá-se, predominantemente, por meio da qualificação dos procedimentos técnicos e reorganização dos processos de assistência direta e indireta. No Processo de Enfermagem, utilizando o raciocínio clínico, são identificados diagnósticos de enfermagem (DE) os quais são direcionados cuidados de enfermagem. Dentre as principais classificações de DE, destaca-se a NANDA International (NANDA-I). O uso DE, no processo de enfermagem, favorece a continuidade e o aumento da qualidade da assistência. Objetivo: A fim de contribuir para a atuação do profissional enfermeiro assistencial na prevenção de Infecção Relacionadas á Assistência à Saúde (IRAS), este trabalho buscou analisar o reconhecimento, por parte do enfermeiro, de respostas humanas relacionadas ao risco e ocorrência de IRAS e intervenções implementadas e verificar a correspondência das intervenções propostas com as requeridas nos protocolos de prevenção de IRAS disponíveis na instituição. Método: Estudo observacional, descritivo, longitudinal e prospectivo realizado na Unidade de Clínica Médica do Hospital Universitário da Universidade de São Paulo, com sujeitos de ambos os sexos, adultos hospitalizados no período de maio a setembro de 2016. Trata-se de uma amostra não probabilísticas de conveniência. Na primeira fase do estudo, foram coletados dados pertinentes para caracterização do perfil epidemiológico e clínico dos sujeitos, bem como os DE e intervenções mais prevalentes, a partir de análise de prontuários. Após esta fase, foram comparadas as intervenções propostas pelo enfermeiro com aquelas definidas em manuais e protocolos da Comissão de Controle de Infecção Hospitalar (CCIH) da instituição, utilizando Mapeamento Cruzado. Resultados: A amostra consistiu de 159 registros de indivíduos, predominantemente idosos, portadores de hipertensão e diabetes, que permaneceram hospitalizados em média 9,6 dias (DP:+/-7,8). Os principais DE encontrados foram: Integridade Tissular Prejudicada, Risco de Quedas e Risco de Glicemia Instável. As principais atividades de intervenção foram: Monitorar sinais vitais, Manter decúbito elevado a 30º/45º, Observar saturação de oxigênio e Realizar glicemia capilar. Dentre as atividades recomendadas pela CCIH, 81,8% puderam ser mapeadas. Quanto à conformidade, apenas as atividades: Manter isolamento, conforme apropriado e Não molhar curativo de cateter no banho obtiveram índice maior a 60%. Conclusão: Os DE e atividades relacionadas mais prevalentes na população em questão foram relacionados principalmente à mensuração de parâmetros vitais e medidas de higiene; as medidas de prevenção específicas de infecção estavam prescritas, porém em número abaixo do esperado. / Introduction: The participation of nursing professionals in the prevention and control of infection occurs predominantly through qualification of technical procedures and reorganization of direct and indirect care processes. By using the Nursing Process working method, nursing diagnoses are identified based on clinical reasoning and interventions are implemented towards them. Among the major diagnostic classifications of, there is NANDA International (NANDA-I), which favors continuity of care with increased quality. Objectives: In order to clarify the role of professional nurse care in preventing health-associated infections (HAIs), this study sought to: identify both the recognition of human responses related to the risk and occurrence of HAIs and interventions implemented by nurses, by investigating the most prevalent nursing diagnoses related to the prevention and control of HAIs in hospitalized adults, and nursing interventions towards them; ascertain the correspondence of the proposed interventions with the required activities in HAI prevention protocols available in the institution. Method: An observational, descriptive, prospective and longitudinal study performed at the Clinical Medical Unit of the University Hospital at University of São Paulo, with hospitalized adults of both genders,. In the first phase of the study relevant data were collected to characterize the clinical and epidemiological profile of the subjects, as well as the most prevalent nursing diagnoses and interventions in nursing care charting. After this phase, the interventions defined in manuals and protocols of the institutional Hospital Infection Control Committee (HICC) were compared with those proposed by the Nursing Interventions Classification (NIC) through the cross-mapping method. Results: The sample consisted of 159 patients, mostly elderly, hypertensive and diabetic, who were hospitalized on average 9.6 days (SD:+/-7,8). The main nursing diagnoses identified were: Impaired tissue integrity, Risk of Falling and Risk for unstable blood glucose. The main intervention activities were: Monitor vital signs, Maintain bed head at 30º/45º, Monitor oxygen saturation and perform blood glucose testing. Among the activities recommended by HICC, 81.8% were mapped into NIC. The conformity only activities: Maintain isolation, as appropriate and not wet catheter dressing in the bath had higher index to 60% of actual prescription in situations requiring such care. Conclusion: The diagnosis and activities nursing related to interventions more prevalent in the population of interest are primarily related to monitoring of vital signs and hygiene procedures. Specific actions towards preventing infection were prescribed, but in an insufficient number.

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