996 resultados para scaling relationship
Resumo:
We determined the relationship between plasma and red blood cell concentrations of quinine in children with uncomplicated falciparum malaria from an endemic area of Amazonian region. Quinine was determined by high performance liquid chromatography with ultraviolet detection. In the steady state the ratio between plasma and red blood cell quinine concentration was 1.89 ± 1.25 ranging from 1.05 to 2.34. This result demonstrated that quinine do not concentrate in red blood cell of Brazilian children and characterize the absence of interracial difference in this relationship.
Resumo:
O CRM é não só uma disciplina mas também um conjunto de soluções de software e tecnologias focalizadas na automação e melhoria dos processos de gestão associados a relações com os clientes existentes não só na área comercial como também no marketing, apoio ao cliente e serviço pós-venda. As aplicações de CRM não facilitam apenas as interacções entre os diversos departamentos da mesma empresa (vendas, marketing, apoio ao cliente e serviço pós-venda) mas, também permite a coordenação de múltiplos canais de comunicação com o cliente – contacto directo, call center e Internet – para que as organizações possam gerir melhor os canais de comunicação mais adequados a cada cliente.
Resumo:
The aims of this study were as follows: (1) to analyze differences in cardiorespiratory fitness (CRF), parents' body mass index (BMI) and birth weight (BW) between non-overweight (NOW) and overweight/obese (OV/OB) adolescents, and (2) to investigate the association of those variables with the risk of their biological offspring being OV/OB. This study comprised 788 adolescents (477 girls and 311 boys), aged between 12 and 18 years. CRF was predicted by maximal multistage 20-m shuttle-run test according to the procedures described in FITNESSGRAM. Children's BMI was classified according to the International Obesity Task Force. Adolescents' BW was assessed from each child's pediatric record at birth. Parents' OV/OB status was defined and classified according to the World Health Organization. Socioeconomic status was defined by parental education. The prevalence OV/OB was 21.4 and 5.3%, respectively, and there were no gender differences. The OV/OB adolescents (girls and boys) had significantly (P<or=0.05) lower CRF scores and higher BW (P<or=0.05) than did the NOW pears. Overall, 92.9% of OV/OB girls had one or two parents with OV/OB (P<or=0.05). Boys with low CRF (odds ratio (OR): 3.75; P<or=0.05) and high BW (OR: 1.65; P<or=0.05) were more likely to be classified as OV/OB compared with NOW. Girls with low CRF (OR: 2.66; P<or=0.05), high BW (OR: 2.09; P<or=0.05) and at least one parent (OR: 2.28; P<or=0.05) or two parents with OV/OB (OR: 4.39; P<or=0.05, respectively) were classified as OV/OB. Results from this study highlight the association between the family adolescents' obesity, in girls. Furthermore, our data suggested that low CRF and high BW were strong predictors of OV/OB in adolescence.
Resumo:
Hand-foot-and-mouth disease (HFMD) is becoming one of the extremely common airborne and contact transmission diseases in Guangzhou, southern China, leading public health authorities to be concerned about its increased incidence. In this study, it was used an ecological study plus the negative binomial regression to identify the epidemic status of HFMD and its relationship with meteorological variables. During 2008-2012, a total of 173,524 HFMD confirmed cases were reported, 12 cases of death, yielding a fatality rate of 0.69 per 10,000. The annual incidence rates from 2008 to 2012 were 60.56, 132.44, 311.40, 402.76, and 468.59 (per 100,000), respectively, showing a rapid increasing trend. Each 1 °C rise in temperature corresponded to an increase of 9.47% (95% CI 9.36% to 9.58%) in the weekly number of HFMD cases, while a one hPa rise in atmospheric pressure corresponded to a decrease in the number of cases by 7.53% (95% CI -7.60% to -7.45%). Similarly, each one percent rise in relative humidity corresponded to an increase of 1.48% or 3.3%, and a one meter per hour rise in wind speed corresponded to an increase of 2.18% or 4.57%, in the weekly number of HFMD cases, depending on the variables considered in the model. These findings revealed that epidemic status of HFMD in Guangzhou is characterized by high morbidity but low fatality. Weather factors had a significant influence on the incidence of HFMD.
Resumo:
Dissertation presented to obtain the Ph.D. degree in Biochemistry
Resumo:
The pathogenic potential of Blastocystis sp. in experimental models requires further investigation. In this work, the pathogenicity of this parasite in the gastrointestinal tract of male Swiss mice was evaluated according to the inoculum size and period of infection. Animals were infected intragastrically, with 100, 500, 1,000, 5,000 and 10,000 Blastocystis sp. vacuolar forms obtained from a mixture of eight human isolates cultured axenically in Jones' medium. After seven, 14, 21, 28 and 60 days of infection, the animals were sacrificed and fragments of the small intestine (duodenum), large intestine, and cecum were subjected to histopathological analysis. Blastocystis sp. triggered an inflammatory response in the different tissues analyzed, with a predominance of mononuclear cells. The parasite was found in the muscular layer of the cecum, showing its invasive character. Larger inocula triggered inflammatory processes earlier (seven days) than smaller ones (from 21 days). We conclude that, in the proposed model, the pathogenicity of Blastocystis sp. isolates that were studied is related to inoculum size and period of infection.
Resumo:
Dissertação apresentada como requisito parcial para obtenção do grau de Mestre em EstatÃstica e Gestão de Informação
Resumo:
Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.
Resumo:
A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
Resumo:
A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
Resumo:
The authors evaluated the isoniazid acetylating phenotype and measured hematocrit, hemoglobin, glucose-6-phosphate dehydrogenase and glutathione reductase activities plus serum sulfadoxin levels in 39 patients with paracoccidioidomycosis (33 males and 6 females) aged 17 to 58 years. Twenty one (53.84%) of the patients presented a slow acetylatingphenotype and 18(46.16%) a fast acetylating phenotype. Glucose-6-phosphate- dehydrogenase (G6PD) acti vity was decreased in 5(23.80%) slow acetylators and in 4(22.22%) fast acetylators. Glutathione reductase activity was decreased in 14 (66.66%) slow acetylators and in 12 (66.66%) fast acetylators. Serum levels of free and total sulfadoxin Were higher in slow acetylator (p < 0.02). Analysis of the resultspermitted us to conclude that serum sulfadoxin levels are related to the acetylatorphenotype. Furthermore, sulfadoxin levels were always above 50 µg/ml, a value considered therapeutic. Glutathione reductase deficiency observed in 66% of patients may be related to the intestinal malabsorption of nutrients, among them riboflavin, a FAD precursor vitamin, inpatients with paracoceidioidomycosis.
Resumo:
A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
Resumo:
It is still controversial whether intestinal parasitic infections can influence the nutritional status of children. The relationship between protein-energy malnutrition, vitamin A and parasitic infections was evaluated in 124 children. The food intake estimated by recall method was generally low and poor. Seventy five percent of the children were infected with intestinal parasites. The mean±SD weight-for-age and height-for-age Z-score were skewed one standard deviation to the left, when compared to normal standards. An association was found between protein-energy malnutrition and Giardia lamblia, but not with Ascaris lumbricoides or Hymenolepis nana infection. Only Giardia-infected children had a decreased weight-for-age and weight-for-height Z-score. Hypovitaminosis A was a major nutritional problem, but no relationship between this deficiency and parasitic infection was found. Our data indicate that low and poor food intake were the major cause of protein-energy malnutrition among the children, and except for Giardia, this was not influenced by parasitic infections.
Resumo:
RESUMO: O'suicÃdio'é'atualmente'um'problema'de'saúde'pública.'Estimarse'que'um'milhão'de'pessoas' morra'anualmente'devido'ao'suicÃdio.'De'acordo'com'diversas'agências'e'organizações'estimar 'que'ocorram'entre'20'a'40'tentativas'de'suicÃdio'por'cada'suicÃdio'consumado.'Os'custos'associados'ao'suicÃdio,'quer'humanos'quer'económicos'são'enormes'e'estendemrse'à 'famÃlia,'emprego,'economia'e'finanças.'Os'números'oficiais'do'suicÃdio'em'Portugal'indicam'uma'taxa ligeiramente'acima'dos'10'por' cada'100'000'habitantes'mas' comportando' regiões'onde' são'observadas' taxas' muito' elevadas,' como' no' Sudoeste' de' Portugal' onde' se' observam particularmente taxas 3'vezes'acima'da'média'nacional.' Investigámos' o' fenómeno' com' os' objetivos' de' validar' a' técnica' de' autópsia' psicológica' em' contexto' comunitário' nunca' realizado' em' Portugal,' e' dar' um' contributo' para' uma' compreensão'mais'alargada'deste'problema'de'saúde'pública,'especialmente'nesta'região'de' Odemira.' A' autópsia' psicológica' consiste' em' reunir' detalhadamente' informação' sobre' a'personalidade' e' vida' de' alguém' que' morreu' em' circunstâncias' equÃvocas' (por' suicÃdio,' homicÃdio' ou' acidente)'recorrendo'ainda'a'registos'e'documentação,'bem'como'procedendo'a entrevistas' com' familiares,' colegas' ou' amigos.' Foi' feita' uma' adaptação' de' uma' entrevista' semirestruturada' para' o' efeito.' Foram' recrutados' 2' grupos' de' participantes:' um' grupo' de familiares de pessoas que cometeram'suicÃdio'(n=30)'e'um'grupo'de'familiares'de'pessoas'que morreram de causas' naturais' (n=24).' O' estudo' decorreu' em' 3' momentos' com' sessões' de' apresentação' (i),' sessões' de' preparação' (ii)' e' entrevistas' para' recolha' de' informação' e'monitorização.'' Os' principais' resultados'mostram' que' existiram' dificuldades' na' obtenção' da' informação' a'partir' dos' entrevistados,' a'maioria' dos' suicidas' eram'homens' acima' dos' 40' anos' de' idade,' afetados' por' lesões' graves' ou' doenças' graves' ' no' perÃodo' adulto' embora' apresentassem'condições' válidas' para' trabalhar,' reformados,' vivendo' em' famÃlia,' com' traços' de'personalidade' amargurados,' tristes' ou' pessimistas,' com' escassas' atividades' nos' tempos' de' lazer,' sem' problemas' somáticos' significativos' ou' perturbações'mentais' que' comunicaram' a intenção de morrer previamente'e'provenientes'de'famÃlias'sem'dificuldades'económicas'ou'relações'familiares'desadequadas.' Tendo'em'conta'a'literatura,'algumas'das'caracterÃsticas'parecem'ser'muito'particulares'desta'população.'Aparentemente'o'suicÃdio'poderá'ter'implicações'genéticas'que'deveriam'ser'tidas'em'conta'em'futuras'investigações.' A'integração'da'saúde'mental'nos'cuidados'de'saúde'primários'afigurarse'urgente'tendo'em' conta' que' a' escassez' de' profissionais' de' saúde'mental' é' enorme' numa' parte' do' paÃs' onde'ocorre' o'maior'número'de' suicÃdios.'Mudar'de'modelo'e'reorganizar'os' serviços'de' forma'a' poder' dar' uma' resposta' ao' défice' de' tratamento' de' saúde' mental' e' ter' em' conta' os' determinantes'sociais'da'saúde'para'fazer'face'ao'isolamento'é'fundamental.' ---------------ABSTRACT: Suicide' is,'nowadays,' a'public'health'problem.'A'million'dies' annually'by' suicide'worldwide.' According'to'several'agencies'and'organizations'an'estimation'of'20'to'40'suicide'attempts'is advanced for each complete' suicide. Associated'costs'to'suicide,'both'human'and'economic,'are' huge' and' spread' on' family,' jobs,' economy,' and' finances.' Official' available' figures' for' suicide' in' Portugal' indicate' a' rate' slightly' over' 10' for' each' 100' 000' inhabitants,' but' with'regions'where'one' can' actually' find'extremely'high' rates,' like' for' instance' in' the'Southwest' part' of' the' country,' where' are' regularly' found' rates' 3' times' higher,' when' compared' to'national'average.'' We' have' investigated' the' phenomenon' aiming' to' validate' the' technique' of' psychological'autopsy' in' a' community' context' never' explored' before' in' Portugal' and' to' contribute' for' a' wider' understanding' of' this' public' health' problem,' especially' in' this' region' of' Odemira.' Psychological'autopsy'consists'into'a'detailed'gathering'of'information'about'the'personality'and' life' of' someone' died' in' equivocal' circumstances' (suicide,' homicide,' accident),' registries and other'documentation'as'well'as'interviews'with'family'members,'corworkers'and'friends.' An' adaptation' of' a' semirstructured' interview' was' made.' Two' groups' of' participants' were'recruited: a'group of'relatives'of'people'committing'suicide'(n=30),'and'a'group'of'relatives'of'people' whose' death' was' after' natural' causes' (n=24).' Study' was'made' in' 3'moments' with'presentation'sessions;'(i)'preparation'sessions;'(ii)'interviewing'data'collection'and'monitoring' iii).'' Main'results'showed'difficulties'to'obtain'information'from'interviewees,'most'suicides'were' from males over 40 years old, affected'by'serious'illness'or'severe'injury'in'adulthood'but'valid'to'work,'retired,'living'in'family,'with'bitterness,'sad'or'pessimistic'as'personality'traits,'with'few' leisure' activities,' without' significant' health' somatic' problems' or' mental' disorders,'communicating'intention'to'die'previously,'coming'from'families'with'no'indication'of'financial'distress'or'inadequate'family'relationship.' Taking'into'account'the'literature'it'looks'like'some'features'seem'to'be'quiet'particular'from'this'population.'Apparently'one'might'say'that'suicide'could'have'genetic'implications'which'further'research'should'account'in'the'future.' Integration' of'mental' health' into' primary' care' is' urgent' once' the' scarcity' of'mental' health' professionals' is' enormous' in' a' part' of' the' country' where' most' suicides' occur.' Scaling' up services must go in order'to'address'to'treatment'gap'and'social'determinants'of'health'should'be'taken'into'account'to'face'isolation.' Results' show' that' the' profile' of' the' suicidal' in' the' region' of' Odemira' is' particular' and'implications' of' genetics' should' be' taken' into' account.' Moreover' much' can' be' done' in'organization' of' services' in' the' region' where' we' performed' the' present' study' in' order' to'address'to'treatment'gap'for'mental'disorders'and'to'the'social'determinants'of'health.