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1.
Int J Hosp Manag ; 109: 103366, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36447774

RESUMO

Due to the detrimental effects of the Covid-19 pandemic on the hotel sector, pandemic crisis management research has received lots of academic attention, from studies in sales-marketing to human resource management. However, financial management has been largely overlooked in the agenda of pandemic crisis management and hotel resilience. Therefore, this paper aims to address the research gap by exploring the role of capital structure management in maintaining financial stability and resilience capacities of hotel firms during this evolving and unpredictable Covid-19 pandemic. Using a database of 1882 firm-quarter observations of 196 hotel firms in 30 countries from Quarter 3 2018 to Quarter 2 2021, it is found that low debt capital structure mitigates the adverse impact of the pandemic on hotel firms' financial stability during this turbulent time; particularly the negative impacts caused by government restrictions on both domestic and international travel. The benefit of low debt levels is more pronounced for more vulnerable hotels such as small, less diversified, and slow growing hotel firms. Also, hotel firms that have less long-term debt are more financial stable and resilient during pandemic period. Research outcomes suggest that financial management, in particular capital structure policies should be a critical part of hotel resilience building and crisis management strategy for hotel firms.

2.
Genet Med ; 12(11): 721-5, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20808227

RESUMO

PURPOSE: The aim of this project was to conduct educational outreach about hereditary colon cancer to a targeted high risk population identified through a state cancer registry. METHODS: Individuals who met one of the first three Bethesda criteria guidelines were identified through the Colorado Central Cancer Registry. The physician of record received a brochure, survey and form to provide written consent to contact patient(s). Cases were mailed an educational brochure, initial and follow-up survey. RESULTS: Five hundred seventy-five cases and 412 physicians were identified; 81% provided consent. Ninety percent of physicians felt the registry should provide this information to at-risk patients. Twenty-three percent of the cases returned the survey. Cases were generally glad to get the information. Only four cases reported concern. The majority agreed the cancer registry should send the information, however most preferred their physicians be consented first. At follow-up, 20 cases reported having or intending to have a risk assessment. CONCLUSIONS: Response from physicians and cases was positive, suggesting that targeted outreach using cancer registries, in combination with physician notification, may be a viable approach to educational outreach about cancer genetics. A proportion of cases sought risk assessment, suggesting that mail-based outreach may be effective in increasing uptake of information and/or genetic services.


Assuntos
Neoplasias do Colo/genética , Consentimento Livre e Esclarecido , Educação de Pacientes como Assunto/métodos , Sistema de Registros , Conscientização , Humanos , Inquéritos e Questionários
3.
Eur J Pediatr ; 167(8): 885-90, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17940797

RESUMO

In patients with a single functioning kidney, renal function was assessed at regular intervals over a period of 10 years. Serum creatinine, glomerular filtration rate (GFR), blood pressure, and urinary protein-creatinine ratio were assessed at the age of 2, 5 and 10 years. Between January 1980 and December 2005, 99 such patients were diagnosed in the first year of life. They were divided into three groups: A, patients with multicystic kidney disease and a normal contralateral kidney (n = 36); B, patients with a normal solitary kidney without uropathy (n = 20); and C, patients with obstructive uropathy and one nonfunctioning kidney (n = 43). Serum creatinine levels increased significantly with increasing age in every group. In group C, serum creatinine was significantly elevated compared with group A in all age categories (p = 0.043, p = 0.019, p = 0.001 respectively). Median figures of GFR remained within normal limits over the 10-year period. GFR was significantly lower in group C compared with group A (p = 0.001, p = 0.009, p = 0.019 respectively) and B in all age categories (p = 0.013, p = 0.002, p = 0.016 respectively). There were no changes in blood pressure over time and no differences among the three groups were observed. At the age of 10 years, the patients in group C had a significantly higher median urinary protein-creatinine ratio (p = 0.022) than those in groups A and B. There was also an increasing level of proteinuria with increasing age in group C (p = 0.002). In conclusion, renal function was stable over time in all patients, but children with obstructive uropathy have a lower median GFR and higher serum creatinine level for the whole study period. Hypertension was exceptionally observed in group C, with obstructive uropathy, as was an elevated urinary protein-creatinine ratio.


Assuntos
Nefropatias/fisiopatologia , Rim/anormalidades , Rim/fisiopatologia , Pressão Sanguínea , Criança , Pré-Escolar , Creatinina/urina , Feminino , Taxa de Filtração Glomerular , Humanos , Nefropatias/congênito , Testes de Função Renal , Masculino , Rim Displásico Multicístico/fisiopatologia , Proteinúria/epidemiologia , Estudos Retrospectivos
4.
Cancer Res ; 66(6): 3338-44, 2006 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-16540689

RESUMO

A sensitive screening approach for lung cancer could markedly reduce the high mortality rate for this disease. Previous studies have shown that methylation of gene promoters is present in exfoliated cells within sputum prior to lung cancer diagnosis. The purpose of the current study is to conduct a nested case-control study of incident lung cancer cases from an extremely high-risk cohort for evaluating promoter methylation of 14 genes in sputum. Controls (n = 92) were cohort members matched to cases (n = 98) by gender, age, and month of enrollment. The comparison of proximal sputum collected within 18 months to >18 months prior to diagnosis showed that the prevalence for methylation of gene promoters increased as the time to lung cancer diagnosis decreased. Six of 14 genes were associated with a >50% increased lung cancer risk. The concomitant methylation of three or more of these six genes was associated with a 6.5-fold increased risk and a sensitivity and specificity of 64%. This is the first study to prospectively examine a large panel of genes for their ability to predict lung cancer and shows the promise of gene promoter hypermethylation in sputum as a molecular marker for identifying people at high risk for cancer incidence.


Assuntos
Neoplasias Pulmonares/genética , Escarro/fisiologia , Adulto , Idoso , Biomarcadores Tumorais/biossíntese , Biomarcadores Tumorais/genética , Estudos de Casos e Controles , Metilação de DNA , Feminino , Humanos , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Regiões Promotoras Genéticas , Escarro/citologia , Escarro/metabolismo
5.
J Thorac Oncol ; 1(4): 302-7, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-17409874

RESUMO

HYPOTHESIS: Chronic obstructive pulmonary disease (COPD) and lung cancer are thought to share common elements in pathogenesis. The authors hypothesized that sputum atypia would reflect the processes leading to progressive airflow obstruction and might be a novel biomarker of more rapidly progressive COPD. METHODS: The authors analyzed the association between COPD death and sputum cytologic atypia in an ongoing cohort of 2013 smokers with varying degrees of airflow obstruction during the period between January 1, 1993, and July 1, 2001. RESULTS: There were 326 deaths attributed to COPD over 4495 person-years, giving a COPD death rate of 7.25 deaths per 100 person-years, which is highly elevated compared with fewer than 0.2 COPD deaths per 100 person-years for the United States population aged between 65 and 74 years. Sputum atypia was not associated with either the degree of airflow obstruction or death from COPD. COPD death was associated with age and degree of airflow obstruction, as expected. CONCLUSION: Sputum cytologic atypia is not predictive of death from COPD. As sputum cytologic grades of moderate or worse atypia are associated with a significant increase in the risk for lung cancer and do not denote a group with increased competing death rates from COPD, patients with sputum atypia are a good high risk group in whom chemoprevention and early detection studies can be conducted.


Assuntos
Doença Pulmonar Obstrutiva Crônica/mortalidade , Escarro/citologia , Adulto , Idoso , Feminino , Humanos , Neoplasias Pulmonares/etiologia , Masculino , Pessoa de Meia-Idade , Doença Pulmonar Obstrutiva Crônica/etiologia
7.
Cancer Detect Prev ; 28(4): 244-51, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15350627

RESUMO

Survival rates for lung cancer are low because patients have disseminated disease at diagnosis; therefore tests for early diagnosis are highly desirable. This pilot study investigated occurrence of chromosomal aneusomy in sputum from a 33 case-control cohort matched on age, gender, and date of sample collection. Subjects had chronic obstructive pulmonary disease and > or = 30 pack-years of tobacco use, and aneusomy was tested using a multi-target DNA FISH assay (LAVysion, Abbott/Vysis). In specimens collected within 12 months of lung cancer diagnosis, abnormality was more frequent among the 18 cases (41%) than the 17 controls (6%; P = 0.04). Aneusomy had no significant association with cytologic atypia, which might indicate that molecular and morphological changes could be independent markers of tumorigenesis. Combining both tests, abnormality was found in 83% of the cases and 20% of the controls (P = 0.0004) suggesting that FISH may improve the sensitivity of cytologic atypia as a predictor of lung cancer.


Assuntos
Aberrações Cromossômicas , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/patologia , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Instabilidade Cromossômica , Feminino , Humanos , Hibridização in Situ Fluorescente , Masculino , Pessoa de Meia-Idade , Doença Pulmonar Obstrutiva Crônica , Medição de Risco , Sensibilidade e Especificidade , Escarro
8.
Acad Med ; 79(9): 865-72, 2004 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-15326013

RESUMO

PURPOSE: To assess the association between mentorship and both subsequent research productivity and career development among primary care research fellows. METHOD: In 1998, using a self-administered questionnaire, the authors surveyed 215 fellows who graduated from 25 National Research Service Award (NRSA) primary care research programs between 1988-1997 to assess quantitative aspects and qualitative domains of their mentorship experience during fellowship training. RESULTS: A total of 139 fellows (65%) responded to mentorship questions a median of four years after their fellowship. Thirty-seven fellows (26.6%) did not have an influential mentor, 42 (30.2%) reported influential but not sustained mentorship, and 60 (43.2%) had influential and sustained mentorship. Individuals with influential mentorship spent more time conducting research (p =.007), published more papers (p =.003), were more likely to be the principal investigator on a grant (p =.008), and more often provided research mentorship to others (72.5% versus 66.7% of those with unsustained mentorship, and 36.4% of those with no influential mentor, p =.008). After controlling for other predictors, influential and sustained mentorship remained an important determinant of career development in research. On qualitative analysis, fellows identified three important domains of mentorship: the relationship between mentor and fellow (such as guidance and support), professional attributes of the mentor (such as reputation), and personal attributes of the mentor (such as availability and caring). CONCLUSIONS: Influential and sustained mentorship enhances the research activity of primary care fellows. Research training programs should develop and support their mentors to ensure that they assume this critical role.


Assuntos
Mentores , Papel do Médico , Atenção Primária à Saúde , Pesquisa , Adulto , Feminino , Humanos , Masculino , Inquéritos e Questionários
9.
Gen Hosp Psychiatry ; 26(3): 226-32, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15121351

RESUMO

The objective of this study was to determine the prevalence of self-reported podiatric impairments and their effect on health status in persons with severe mental illness. A sample of psychiatric outpatients (N=309) underwent interviews assessing medical conditions and health status with the Medical Outcomes Study Short Form-36 (SF-36). Podiatric health was assessed using nine items from the National Health Interview Survey (NHIS). Eighty percent of patients reported at least one podiatric problem. The most common problems were foot pain (48%), nail disorders (35%) and corns/calluses (28%). Prevalence rates were 4-11 times higher than those reported by the general population in the 1990 NHIS. The total number of podiatric problems was inversely related to eight self-reported health status domains and both summary SF-36 scores (all P<==.0001). After controlling for sociodemographic factors, psychiatric illness and medical conditions, the total number of podiatric limitations remained significantly associated with lower patient ratings in four of the eight SF-36 domains and both summary scores. We concluded that persons with severe and persistent mental illness have markedly elevated rates of podiatric problems when compared to the general population group. These problems are associated with worsened self-perceived health status. Addressing podiatric health may be a successful way to improve the overall health of this population.


Assuntos
Deformidades do Pé/epidemiologia , Doenças do Pé/epidemiologia , Indicadores Básicos de Saúde , Transtornos Mentais/epidemiologia , Adolescente , Adulto , Idoso , Colorado/epidemiologia , Comorbidade , Feminino , Humanos , Entrevistas como Assunto , Modelos Lineares , Masculino , Transtornos Mentais/classificação , Transtornos Mentais/complicações , Serviços de Saúde Mental , Pessoa de Meia-Idade , National Center for Health Statistics, U.S. , Podiatria , Prevalência , Autocuidado , Índice de Gravidade de Doença , Estados Unidos/epidemiologia
11.
Cancer Epidemiol Biomarkers Prev ; 12(10): 987-93, 2003 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-14578133

RESUMO

Individuals with cytological atypia in sputum may be at increased risk for lung cancer. We conducted a longitudinal analysis of the association between lung cancer incidence and cytological atypia in sputum samples collected prospectively from an ongoing cohort of adults at high risk for lung cancer. Cohort members had a smoking history of > or = 30 pack-years and chronic obstructive pulmonary disease documented by pulmonary airflow testing. Sputum samples collected at baseline and periodically thereafter were examined by standard cytological methods. From the cohort of 2,006 people, there were 83 incident lung cancers over 4,469 person-years of observation. At baseline, the association between personal and behavioral characteristics, and sputum cytological atypia was assessed by multiple logistic regression. The association between sputum cytological atypia and incident lung cancer was then assessed by hazard ratios using proportional hazards regression analysis, adjusting for potential confounding factors. Cytological atypia graded as moderate or worse was associated with continuing cigarette smoking (adjusted odds ratio, 2.5; 95% confidence interval, 1.5-4.1), and with lower levels of intake of fruits and vegetables (P for trend = 0.04). Atypia was not associated with several other factors, including the degree of airflow obstruction, the use of vitamin supplements, nonsteroidal anti-inflammatory drugs, or metered-dose steroid inhalers. Incident lung cancer was increased among those with moderate or worse cytological atypia (adjusted hazards ratio, 2.8; 95% confidence interval, 1.4-5.5). This association was not confounded by other risk factors. We conclude that in this high-risk cohort, cytological atypia is associated with continuing smoking and low intake of fruits and vegetables, but that independent of these and other factors, the risk of incident lung cancer is increased among those with moderate or worse grades of cytological atypia in their sputum.


Assuntos
Obstrução das Vias Respiratórias/patologia , Neoplasias Pulmonares/epidemiologia , Pulmão/citologia , Pulmão/patologia , Fumar/efeitos adversos , Escarro/citologia , Adulto , Idoso , Estudos de Coortes , Dieta , Feminino , Frutas , Humanos , Incidência , Estudos Longitudinais , Neoplasias Pulmonares/etiologia , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Análise de Regressão , Verduras
12.
Fam Med ; 35(2): 124-30, 2003 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-12607810

RESUMO

BACKGROUND AND OBJECTIVES: This study compared the training programs and career paths of family medicine graduates in the National Research Service Award (NRSA) Program for Research in Primary Medical Care with general internal medicine and general pediatric peers. METHODS: We mailed a survey to NRSA fellows graduating from 23 programs nationally between 1988-1997. Personal characteristics, fellowship experience, current professional activities, and academic productivity were compared among primary care disciplines. RESULTS: Of 215 NRSA participants, 146 (68%) completed the survey. Of the 131 primary care respondents, 25% were family physicians. During the fellowship, family physician trainees spent significantly less time in hands-on research activity (32% +/- 12%) than internists and pediatricians (39% +/- 17%). Family physician graduates also had less post-fellowship mentoring and were less likely to hold clinician/researcher faculty positions in academic centers. Family physician faculty spent far more time on clinical work and less time on research. Only 12.5% of family physician fellowship graduates published one or more articles per year, compared with 36.5% of their peers, and 30% had published nothing since graduation. CONCLUSIONS: Family physician graduates of this research training program did not achieve academic success comparable to their peers. Family physicians need more protected time for conducting research in their faculty positions and more sustained mentorship.


Assuntos
Pesquisa Biomédica , Escolha da Profissão , Competência Clínica , Medicina de Família e Comunidade/educação , Medicina Interna/educação , Pediatria/educação , Intervalos de Confiança , Coleta de Dados , Educação de Pós-Graduação em Medicina , Docentes de Medicina , Bolsas de Estudo , Feminino , Humanos , Internato e Residência , Masculino , Análise Multivariada , Probabilidade , Inquéritos e Questionários , Estados Unidos
13.
J Gen Intern Med ; 17(11): 845-51, 2002 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-12406356

RESUMO

OBJECTIVE: Little is known about the impact of fellowship training in primary care on subsequent research productivity. Our goal was to identify characteristics of research fellows and their training associated with subsequent publications and research funding. DESIGN: Mail survey in 1998. SETTING AND PARTICIPANTS: 1988-1997 graduates of 25 National Research Service Award primary care research fellowships in the United States. OUTCOME MEASURES: 1) Publishing 1 or more papers per year since the beginning of fellowship, or 2) serving as principal investigator (PI) on a federal or non-federal grant. RESULTS: One hundred forty-six of two hundred fifteen program graduates (68%) completed the survey. The median age was 38 years, and 51% were male. Thirty-two percent had published 1 or more papers per year, and 44% were PIs. Male gender (odds ratio [OR], 3.6; 95% confidence interval [95% CI], 1.4 to 9.2), self-reported allocation of 40% or more of fellowship time to research (OR, 4.4; 95% CI, 1.8 to 11.2), and having an influential mentor during fellowship (OR, 5.0; 95% CI, 1.5 to 17.2) were independently associated with publishing 1 or more papers per year. Fellows with funding as a PI were also more likely to have an influential mentor (OR, 3.0; 95% CI, 1.3 to 7.2). CONCLUSION: Primary care fellows who had influential mentors were more productive in research early after fellowship. Awareness of the indicators of early research success can inform the policies of agencies that fund research training and the curricula of training programs themselves.


Assuntos
Bolsas de Estudo , Pesquisa , Medicina de Família e Comunidade , Feminino , Humanos , Medicina Interna , Masculino , Mentores , Pessoa de Meia-Idade , Pediatria , Editoração , Pesquisa/estatística & dados numéricos
14.
Acad Med ; 77(7): 712-8, 2002 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-12114148

RESUMO

PURPOSE: To describe the training and career paths of fellows in the National Research Service Award (NRSA) Program for Research in Primary Medical Care. METHOD: All fellows who graduated from 25 NRSA programs nationally between July 1988 and June 1997 (n = 215) were mailed a questionnaire. Personal characteristics, fellowship experiences, and current professional positions were compared between faculty researchers, faculty clinician-educators, and individuals who were not in full-time academic positions. RESULTS: A total of 146 NRSA graduates (68%) completed the survey. A mean of four years had elapsed since their fellowships. Of the respondents, 36% were faculty researchers, 32% were faculty clinician-educators, and 32% were not on full-time faculties. Faculty researchers did not differ from the other groups in demographics or acquisition of advanced degrees, but they were more often general internists than general pediatricians, family physicians, or from other disciplines (p =.002). Fellowship graduates spent a mean of 29% of their training in course work and 38% conducting research. Faculty researchers spent a greater proportion of their fellowship conducting research (46% versus 34% for clinician-educators and 31% for those not on full-time faculties, respectively, p <.0001). They were also more productive in terms of subsequent publications and grant acquisitions. CONCLUSIONS: Only a minority of those completing NRSA programs held positions as faculty researchers. The preponderance of general internists among researchers may indicate problems in the capacity of general pediatrics and family medicine to support primary care research. The amounts of direct research time during these fellowships may need to be increased to enhance the likelihood of subsequent research success.


Assuntos
Distinções e Prêmios , Escolha da Profissão , Bolsas de Estudo/estatística & dados numéricos , Atenção Primária à Saúde , Pesquisa , Apoio ao Desenvolvimento de Recursos Humanos/estatística & dados numéricos , Adulto , Feminino , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde/estatística & dados numéricos , Inquéritos e Questionários , Ensino/estatística & dados numéricos , Estados Unidos
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