97 research outputs found
The Impact Of Service Quality And Consumer Decision Factors On Brand Equity
The purpose of this study is to examine the relationship between service quality, consumer decision factors and brand equity in hotel industry. The population of this research is 17 brand name “Five star” and “Four star” hotels in Thailand. There is a survey on service quality, consumer decision factors and brand equity responded to by guests of the hotels. The samples for the study were 370 guests of the hotels. Paired samples t-statistics test method was used to test the differences and similarities of the mean response between service quality expectations and customers’ perceived service quality. The research used descriptive statistics, correlation analysis and ANOVA to test the hypotheses. The results indicate that there was no significant difference between the expectation and perception of service quality of Thai hotels on all five dimensions. The results also indicate that there is no relationship between service quality and brand equity. However, the results indicate that there is a relationship between quality perception and consumer decision factors. Furthermore, a relationship was found between quality perception and brand equity in the hotels. In addition, the research found there is a relationship between consumer decision factors and brand equity. Moreover, the research found there is a relationship between service quality, consumer decision factor and brand equity. The contribution is derived from the works of Keller (1993) and the study of Aaker (1991), Aaker & Biel (1993), Howard (1994) and Berry (2000)
Corporate Diversification And Firm Performance Impact On Chief Executive Officers Salary
The purpose of this research is to examine CEO salary and to explore whether the independent variables (international diversification, industrial diversification, market-based performance, accounting-based performance) are associated with CEO salary. Corporate diversification in this study is divided into international diversification and industrial diversification. Data for the study was obtained from annual reports of CEO salary on the ExecuComp database. Compensation data collected from the annual reports encompassed 2,448 CEOs from 1,622 firms. The dependent variable was developed from a review of CEO salary and accounting literature. The hypothesized predictors of CEO salary were identified through a review of existing studies. The results show that the higher the degree of international diversification and/or industrial diversification, the more CEOs receive in fixed salary. In addition, this study found that CEO salary is a better predictor of accounting performance than stock return performance
The Impact Of Internet Marketing On Profitability
With the internet user increased, the internet marketing becomes a hot and new marketing channel to sell and buy through internet meanwhile changes buyer behavior. This study examine whether internet marketing become a popular marketing channel or a key marketing channel for the company in future. This paper reports the results of an empirical study of the marketing channel choices (internet and catalog) have different marketing costs to cause different performances on firm profitability. Data on financial statements from internet and catalog retail of COMPUSTAT database that were in existence in 2002 were examined and statistically analyzed the profitability. Comparisons are made, through a series of T-tests, to determine the profitability of their different retail marketing channel choices. The results indicated statistically significant differences in ROE, ROA, and ROS between internet and catalog retail, therefore, the adoption and implementation of different retail marketing channel choices such as internet and catalog did have a different profitability. The results concluded that internet retail or on-line retail may be an additional marketing channel for the company but it can not be a key retail marketing channel due to the negative means of t-test results on internet profitability
The Impact Of Just In Time On Firm Performance
This paper explores whether different supply chain management choices such as just-in-time and non-just-in-time, which has different inventory cost has an effect on firm performance and whether or not the firm adopts the innovation approach such as JIT could increase productivity, reduce inventory and improve quality. The results indicated statistically significant differences in inventory, days to sell inventory, inventory turnover, ROA, sales, cost of goods sold, gross profit margin between JIT and non-JIT. It concluded that the adoption and implementation of innovation approach of supply chain management such as JIT did have a significant difference and improvement on firm performance
Scientific and Regulatory Perspective on Monoclonal Antibody Biosimilars
Similar biotherapeutic products (SBPs), also called biosimilars, exhibit similar biological and clinical properties to authorized reference products. Biosimilars, including small molecules like erythropoietin and complex macromolecules like monoclonal antibodies (mAbs), have been used extensively in disease treatment. Monoclonal antibody biosimilars have gradually become a dominant development in the global pharmaceutical industry since their patents or data protection have been expired or nearing expiration. Since the mAb biosimilars are complex biological macromolecules with various post-translation modifications, it is important to evaluate whether these tiny differences significantly affect the quality. From a regulatory perspective, the comparability study needs to be performed to demonstrate that the quality, safety, and efficacy are similar to the biological reference. Based on these comprehensive comparative results, the indicated extrapolation might be acceptable. Post-market surveillance is also required because of unexpected biological variation caused by slightly different manufacturing processes. This chapter presents the scientific and regulatory considerations for monoclonal antibody biosimilar products for manufactures and for the regulatory authorities to administrate wisely and comprehensively
Ellagic Acid, the Active Compound of Phyllanthus urinaria, Exerts In Vivo Anti-Angiogenic Effect and Inhibits MMP-2 Activity
This study aimed to assess the potential anti-angiogenic mechanism of Phyllanthus urinaria (P. urinaria) and characterize the major compound in P. urinaria that exerts anti-angiogenic effect. The water extract of P. urinaria and Ellagic Acid were used to evaluate the anti-angiogenic effect in chorioallantoic membrane (CAM) in chicken embryo and human vascular endothelial cells (HUVECs). The matrix metalloproteinase-2 (MMP-2) activity was determined by gelatin zymography. The mRNA expressions of MMP-2, MMP-14 and tissue inhibitor of metalloproteinase-2 (TIMP-2) were analyzed by reverse transcription polymerase chain reaction (RT-PCR). Level of MMP-2 proteins in conditioned medium or cytosol was determined by western blot analysis. We confirmed that P. urinaria's in vivo anti-angiogenic effect was associated with a reduction in MMP-2 activity. Ellagic acid, one of the major polyphenolic components as identified in P. urinaria by high performance liquid chromatography mass spectrometry (HPLC/MS), exhibited the same anti-angiogenic effect in vivo. Both P. urinaria and Ellagic Acid inhibited MMP-2 activity in HUVECs with unchanged mRNA level. The mRNA expression levels of MMP-14 and TIMP-2 were not altered either. Results from comparing the change of MMP-2 protein levels in conditioned medium and cytosol of HUVECs after the P. urinaria or Ellagic Acid treatment revealed an inhibitory effect on the secretion of MMP-2 protein. This study concluded that Ellagic Acid is the active compound in P. urinaria to exhibit anti-angiogenic activity and to inhibit the secretion of MMP-2 protein from HUVECs
Clinical characteristics and outcomes of Mycobacterium tuberculosis disease in adult patients with hematological malignancies
BACKGROUND: Diseases caused by Mycobacterium tuberculosis (TB) among adult patients with hematological malignancies have rarely been investigated. METHODS: Adult patients with hematological malignancies at National Taiwan University Hospital between 1996 and 2009 were retrospectively reviewed. Patients with positive serology for HIV were excluded. TB disease is diagnosed by positive culture(s) in the presence of compatible symptoms and signs. The demographics, laboratory and, microbiological features, were analyzed in the context of clinical outcomes. RESULTS: Fifty-three of 2984 patients (1.78%) were diagnosed with TB disease. The estimated incidence was 120 per 100,000 adult patients with hematological malignancies. Patients with acute myeloid leukemia had a significantly higher incidence of TB disease than other subtypes of hematological malignancies (2.87% vs. 1.21%, p = 0.002, odds ratio, 2.40; 95% confidence interval, 1.39-4.41). Thirty-eight patients (72%) with non-disseminated pulmonary TB disease presented typically with mediastinal lymphadenopathy (53%), pleural effusion (47%) and fibrocalcific lesions (43%) on chest imaging. The 15 (28%) patients with extra-pulmonary disease had lower rates of defervescence within 72 h of empirical antimicrobial therapy (13% vs 45%, p = 0.03) and a higher 30-day in-hospital mortality (20% vs. 0%, p = 0.004) compared to those with disease confined to the lungs. CONCLUSIONS: TB disease is not uncommon among patients with hematological malignancies in Taiwan. Patients who received a diagnosis of extra-pulmonary TB suffered higher mortality than those with pulmonary TB alone. Clinicians should consider TB in the differential diagnoses of prolonged fever in patients with hematological malignancies, particularly in regions of high endemicity
Invasive fungal sinusitis in patients with hematological malignancy: 15 years experience in a single university hospital in Taiwan
<p>Abstract</p> <p>Background</p> <p>Risk factors and outcomes in hematological patients who acquire invasive fungal sinusitis (IFS) are infrequently reported in the modern medical era.</p> <p>Method</p> <p>A retrospective study of hospitalized patients with hematological disease was conducted at National Taiwan University Hospital between January 1995 and December 2009.</p> <p>Results</p> <p>Clinical characteristics and outcomes with their associated radiographic and microbiological findings were analyzed. Forty-six patients with IFS and 64 patients with chronic non-invasive sinusitis were enrolled as comparsion. IFS developed more commonly in patients with acute myeloid leukemia (AML) and with prolonged neutropenia (absolute neutrophil count less than 500/mm<sup>3 </sup>for more than 10 days) (<it>p </it>< 0.001). <it>Aspergillus flavus </it>was the most common pathogen isolated (44%). Serum <it>Aspergillus </it>galactomannan antigen was elevated in seven of eleven patients (64%) with IFS caused by aspergillosis but negative for all three patients with mucormycosis. Bony erosion and extra-sinus infiltration was found in 15 of 46 (33%) patients on imaging. Overall, 19 of 46 patients (41.3%) died within 6 weeks. Patients with disease subtype of AML (p = 0.044; Odds Ratio [OR], 5.84; 95% confidence interval [95% CI], 1.02-30.56) and refractory leukemia status (p = 0.05; OR, 4.27; 95% CI, 1.003-18.15) had worse prognosis. Multivariate analysis identified surgical debridement as an independent good prognostic factor (p = 0.047) in patients with IFS.</p> <p>Conclusions</p> <p>Patients of AML with prolonged neutropenia (> 10 days) had significantly higher risk of IFS. Early introduction of anti-fungal agent and aggressive surgical debridement potentially decrease morbidity and mortality in high risk patients with IFS.</p
Microbiologic Characteristics, Serologic Responses, and Clinical Manifestations in Severe Acute Respiratory Syndrome, Taiwan1
The genome of one Taiwanese severe acute respiratory syndrome-associated coronavirus (SARS-CoV) strain (TW1) was 29,729 nt in length. Viral RNA may persist for some time in patients who seroconvert, and some patients may lack an antibody response (immunoglobulin G) to SARS-CoV >21 days after illness onset. An upsurge of antibody response was associated with the aggravation of respiratory failure
Retrospective comparison between a regular and a split-dose protocol of 5-fluorouracil, cisplatin, and mitoxantrone for the treatment of far advanced hepatocellular carcinoma
<p>Abstract</p> <p>Background</p> <p>In patients with advanced hepatocellular carcinoma (HCC), combination chemotherapy using 5- fluorouracil, cisplatin, and mitoxantrone (FMP) could achieve a response rate > 20%, but the beneficial effect was compromised by formidable adverse events. Chemotherapy given in a split-dose manner was associated with reduced toxicities. In this retrospective study, we compared the efficacies and side effects between a regular and a split-dose FMP protocol approved in our medical center.</p> <p>Methods</p> <p>From 2005 to 2008, the clinical data of 84 patients with far advanced HCC, who had either main portal vein thrombosis and/or extrahepatic metastasis, were reviewed. Of them, 65 were treated by either regular (n = 27) or split-dose (n = 38) FMP and had completed at least one therapeutic course. The remaining 19 patients were untreated. Clinical parameters, therapeutic responses, survivals and adverse events were compared.</p> <p>Results</p> <p>The median overall survival was 6.0, 5.2, and 1.5 months, respectively, in patients receiving regular FMP, split-dose FMP, and no treatment (regular versus split-dose group, P = 0.447; regular or split-dose versus untreated group; P < 0.0001). Patients receiving split-dose treatment had a significantly lower risk of grade 3/4 neutropenia (51.9 versus 10.5%, P = 0.0005). When the two treated groups were combined, the median overall survival was 10.6 and 3.8 months respectively for patients achieving disease control and progressive disease (P < 0.001). Cox proportion hazard model identified Child-Pugh stage B (hazard ratio [HR], 2.216; P = 0.006), presence of extrahepatic metastasis (HR, 0.574; P = 0.048), and achievement of disease control (HR, 0.228; P < 0.001) as independent factors associated with overall survival. Logistic regression analysis revealed that anti-hepatitis C virus antibody (odds ratio [OR], 9.219; P = 0.002) tumor size (OR, 0.816; P = 0.036), and previous anti-cancer therapy (OR, 0.195; P = 0.017) were significantly associated with successful disease control.</p> <p>Conclusions</p> <p>Comparable overall survival was observed between patients receiving regular and split-dose FMP therapies. Patients receiving split-dose therapy had a significantly lower risk of grade 3/4 neutropenia. Positive anti-hepatitis C virus antibody, smaller tumor size, and absence of previous anti-cancer therapy were independent predictors for successful disease control.</p
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