10 research outputs found
Does Stock Market value Brands?
This dissertation tries to explore how the brand as an intangible asset impacts on the Market Value of the firm. Using a sample of 193 British firms and their Stock price of the year 2003, we tried to identify if the Stock Market value brands. According to the theoretical review and research results, each brand creates a different brand impact in consumer behaviour and in turn in Stock Market reaction. However, the Stock Market it seems that really values brand assets, firstly directly through the turnover and, secondly indirectly through the profit margin of the produc
Mathematical modelling with Bayesian inference to quantitatively characterize therapeutic cell behaviour in nerve tissue engineering
Cellular engineered neural tissues have significant potential to improve peripheral nerve repair strategies. Traditional approaches depend on quantifying tissue behaviours using experiments in isolation, presenting a challenge for an overarching framework for tissue design. By comparison, mathematical cell–solute models benchmarked against experimental data enable computational experiments to be performed to test the role of biological/biophysical mechanisms, as well as to explore the impact of different design scenarios and thus accelerate the development of new treatment strategies. Such models generally consist of a set of continuous, coupled, partial differential equations relying on a number of parameters and functional forms. They necessitate dedicated in vitro experiments to be informed, which are seldom available and often involve small datasets with limited spatio-temporal resolution, generating uncertainties. We address this issue and propose a pipeline based on Bayesian inference enabling the derivation of experimentally informed cell–solute models describing therapeutic cell behaviour in nerve tissue engineering. We apply our pipeline to three relevant cell types and obtain models that can readily be used to simulate nerve repair scenarios and quantitatively compare therapeutic cells. Beyond parameter estimation, the proposed pipeline enables model selection as well as experiment utility quantification, aimed at improving both model formulation and experimental design
An alginate-based encapsulation system for delivery of therapeutic cells to the CNS
Treatment options for neurodegenerative conditions such as Parkinson's disease have included the delivery of cells which release dopamine or neurotrophic factors to the brain. Here, we report the development of a novel approach for protecting cells after implantation into the central nervous system (CNS), by developing dual-layer alginate beads that encapsulate therapeutic cells and release an immunomodulatory compound in a sustained manner. An optimal alginate formulation was selected with a view to providing a sustained physical barrier between engrafted cells and host tissue, enabling exchange of small molecules while blocking components of the host immune response. In addition, a potent immunosuppressant, FK506, was incorporated into the outer layer of alginate beads using electrosprayed poly-ε-caprolactone core–shell nanoparticles with prolonged release profiles. The stiffness, porosity, stability and ability of the alginate beads to support and protect encapsulated SH-SY5Y cells was demonstrated, and the release profile of FK506 and its effect on T-cell proliferation in vitro was characterized. Collectively, our results indicate this multi-layer encapsulation technology has the potential to be suitable for use in CNS cell delivery, to protect implanted cells from host immune responses whilst providing permeability to nutrients and released therapeutic molecules
Does Stock Market value Brands?
This dissertation tries to explore how the brand as an intangible asset impacts on the Market Value of the firm. Using a sample of 193 British firms and their Stock price of the year 2003, we tried to identify if the Stock Market value brands. According to the theoretical review and research results, each brand creates a different brand impact in consumer behaviour and in turn in Stock Market reaction. However, the Stock Market it seems that really values brand assets, firstly directly through the turnover and, secondly indirectly through the profit margin of the produc
International Accountings Standards, the necessity of harmonization for greek companies and the impact of education
The European Committee consecrated the European companies, which are penetrated, in
organized markets to enforce the International Accountings Standards (IAS) for the 2005’s use.
The enforcement of IAS is very important because it will have positive results for the companies
and the whole market. It will help in clear enforcement of rules’ use in domestic capital
market. Generally we can tell that the enforcement of IAS creates a «logical picture» which is
nearer to the fair value of a company. Apart from that IAS accommodates the international exchanges
and creates the presupposition in order to be insensitive.
As far as Greece is concerned, the advantages of the premature use, in comparison with the
other European countries, are important. The enforcement of IAS for the penetrated companies has
improved the general picture of Athens’ stock exchange and has also helped the attraction of
foreign investments. After that it is possible that there will be development for the Greek companies.
The companies’ staff of tomorrow needs to make worthy effectively the tool of IAS. In this
case the perfect education in particular sensible item constitutes self-understood event. The enlarging
economy needs «enlargement» staff, which apart from all will have delight in reasonable
and useful of IAS
Low-Glycemic-Index/Load Desserts Decrease Glycemic and Insulinemic Response in Patients with Type 2 Diabetes Mellitus
Diabetes mellitus is a chronic disease whose prevalence is growing worldwide. Consumption of desserts with low glycemic index (GI) and low glycemic load (GL) in a balanced hypocaloric diet has a positive impact on anthropometric and metabolic parameters in patients with type 2 diabetes mellitus (T2DM). The aim of the present study was to evaluate the glycemic and insulinemic response after consumption of desserts with low GI/GL in patients with T2DM. Fifty-one patients consumed either 83 g of the conventional dessert or 150 g of the low GI/GL dessert in random order after an overnight fast. Serum glucose, triglycerides, and insulin were measured at baseline (immediately before ingestion) and at 30, 60, 90, and 120 min postprandially. Subjective appetite measurements were performed using visual analog scales (VASs). There were significant differences at 30 (p = 0.014), 60 (p < 0.001), and 90 min (p < 0.001) postprandially between the two desserts for glucose and at 30 (p = 0.014) and 60 min (p = 0.033) postprandially for insulin. Glucose iAUC was significantly lower in low-GI/GL dessert compared to control (p < 0.001). Serum triglycerides and insulin iAUC did not differ between the two trials. Fullness VAS ratings were significantly higher after consumption of the low-GI/GL dessert compared to conventional dessert. Likewise, hunger, additional food, and additional food quantity VAS ratings were significantly lower after the consumption of the low-GI/GL dessert compared to control. Consumption of low-GI/GL dessert indicates a positive impact on metabolic parameters in T2DM patients
The effect of hyperhomocysteinemia on aortic distensibility in healthy individuals
Objective: Elevated plasma homocysteine (HCY) levels have been
associated with increased risk for cardiovascular disease. Aortic
distensibility and aortic pulse wave velocity (PWV) are indices of
aortic elasticity. The potential effect of acute hyperhomocysteinemia
(HHCY) on the elastic properties of the aorta in healthy individuals is
not known. The aim of the present study was to determine the effect of
acute methionine-induced HHCY on aortic distensibility and PWV in
healthy individualsand the effect of acute HHCY on myocardial
performance of the left ventricle (Tei index).
Methods: Thirty healthy volunteers were included in this crossover
study. An oral methionine (100 mg/kg) or water load was given in random
order on separate days at weekly intervals. Aortic distensibility and
Tei index were determined non-invasively by ultrasonography at baseline
and 3 h after methionine or water consumption, while PWV was measured by
applanation tonometry at baseline and every 1 h for the same time
interval.
Results: Oral methionine induced an increase in total plasma HCY
concentrations (P < 0.001), whereas HCY concentrations did not change
after water consumption. Aortic distensibility decreased 3 h after
methionine load (P < 0.001) and Tei index increased (P < 0.001),
suggesting worsening compared with baseline values. Water consumption
had no effect on aortic distensibility or Tei index values. PWV values
did not change after either methionine or water consumption.
Conclusions: Acute methionine-induced HHCY reduces aortic distensibility
and worsens myocardial performance in healthy individuals. Further
research is warranted to examine in the long term the direct effects of
HHCY on cardiovascular function and the indirect effects on structural
remodeling. (C) 2013 Elsevier Inc. All rights reserved
Effect of atorvastatin on baroreflex sensitivity in subjects with type 2 diabetes and dyslipidaemia
In this prospective study, we examined the effect of atorvastatin
treatment on baroreflex sensitivity (BRS) in subjects with type 2
diabetes. A total of 79 patients with type 2 diabetes with dyslipidaemia
were recruited. A total of 46 subjects were enrolled to atorvastatin 10
mg daily and low-fat diet and 33 patients to low-fat diet only. BRS was
assessed non-invasively using the sequence method at baseline, 3, 6 and
12 months. Treatment with atorvastatin increased BRS after 12 months
(from 6.46 +/- 2.79 ms/mmHg to 8.05 +/- 4.28 ms/mmHg, p = 0.03), while
no effect was seen with low-fat diet. Further sub-analysis according to
obesity status showed that BRS increased significantly only in the
non-obese group (p = 0.036). A low dose of atorvastatin increased BRS in
non-obese subjects with type 2 diabetes and dyslipidaemia after 1-year
treatment. This finding emphasizes the beneficial effect of atorvastatin
on cardiovascular system, beyond the lipid-lowering effects