The relationship between money stock and economic growth of Sri Lanka: an aeg testing approach

In modern economy, money stocky is identified as a mechanism of economic growth of all nations. The purpose of this study was to test the relationship among the money stocky and economic growth of Sri Lanka. The time series data of the gross domestic product and the money stockused in this study were collected from the sample period from 1959 to 2013. The Augmented Dickey Fuller (ADF) and Philips Perron tests were used to test the stationarity of the time series variables, and then the Augmented Engel – Granger (AEG) testing approach was employed to test the relationship between the variables. Based on the Augmented Engel – Granger (AEG) testingresults, this study found that the money stock was positively impacting on economic growth of Sri Lanka. The partial p – Value of the money stock was less than 1% and the value of R- squared of this testing model was 0.85, which was higher than Durbin Watson statistic. In the meantime, the absolute value of the Augmented Dickey Fuller (ADF) test of the residual of the estimated model was stationary at 5% critical value. So, the conclusion was that the money stock and economic growth of Sri Lanka were maintained the relationship between them at I(0) level form

Inflation and economic growth in Sri Lanka: an ARDL bound testing approach

Nowadays, number of researchers empirically confirmed that the inflation and economic growth equally move together in negative liaison. But, in Sri Lankan context, this relationship was inferentially not proofed. Therefore, this study was empirically going to test this relationship. The objective of this study was to test the long run nexus between the inflation and economic growth in Sri Lanka. To test this objective, this study used the annual time series data during the periods of 1970 to 2014. And, the multiple regressions model was employed with support of the Auto Regressive Distributed Lag (ARDL) technique which was newly introduced by Pesaran et al., (2001). In this study, the economic growth was used as dependent variable and the inflation rate, exchange rate, and money supply were considered as independent variables. In these independent variables, the inflation rate was considered as key variable and others were exercised as control variables. Based on the ARDL technique, this study selected the lag- 2 model for interpreting the findings which was selected by Akaike Info Criterion (AIC) and Schwarz Bayesian Criterion (SBC). Furthermore, this study fitted a long run nexus model using ordinary least square method with support of ARDL technique. Based on this model, this study confirmed that both the inflation and the economic growth maintain the long run nexus between them with appearing of negative sign. Therefore, this study recommends that, when the development policy makers frame the development policy they should consider this nexus

Impact of fiscal deficit on inflation in Sri Lanka: an econometric time series analysis

There is a relationship between the fiscal deficit and inflation, which was confirmed empirically in several studies conducted in many countries. Sri Lanka has been encountering the problem of inflation for the recent years. But in Sri Lanka, this proposition has not yet been studied scientifically. Therefore, this study was going to fill this gap. The objective of this study was to test the impact of fiscal deficit on inflation in Sri Lanka. For this study, the annual time series data were used during the period of 1959 to 2013. The fiscal deficit, exchange rate, government expenditures and import outflow were used as independent variables while the Colombo consumer price index was considered as dependent variable. In addition, the multiple regressions model was used to test the impact of fiscal deficit on inflation. Based on the regression results, the fiscal deficit preserved the positive relationship with inflation in Sri Lanka at one percent significant level. Therefore, this study confirmed that the fiscal deficit accelerates the inflation in Sri Lanka

Fitting statistical distribution of extreme rainfall data for the purpose of simulation

In this study, several types of probability distributions were used to fit the daily torrential rainfall data from 15 monitoring stations of Peninsular Malaysia from the period of 1975 to 2007. The study of fitting statistical distribution is important to find the most suitable model that could anticipate extreme events of certain natural phenomena such as flood and tsunamis. The aim of the study is to determine which distribution fits well with the daily torrential Malaysian rainfall data. Generalized Pareto, Lognormal and Gamma distributions were the distributions that had been tested to fit the daily torrential rainfall amount in Peninsular Malaysia. First, the appropriate distribution of the daily torrential rainfall was identified within the selected distributions for rainfall stations. Then, data sets were generated based on probability distributions that mimic a daily torrential rainfall data. Graphical representation and goodness of fit tests were used in finding the best fit model. The Generalized Pareto was found to be the most appropriate distribution in describing the daily torrential rainfall amounts of Peninsular Malaysia. The outputs can be beneficial for the purpose of generating several sets of simulated data matrices that mimic the same characteristics of rainfall data in order to assess the performance of the modification method compared to classical method

Analysis of Information Security Risks and Protection Management Requirements for Enterprise Networks.

With widespread of harmful attacks against enterprises¿ electronic services, information security readiness of these enterprises is becoming of increasing importance for establishing the required safe environment for such services. Various approaches are proposed to manage enterprise information security risks and to assess its information security readiness. These approaches are, however, not adequate to manage information security risks, as all required information security components of its structural and procedural dimensions have not considered. In addition, current assessment approaches lack numerical indicators in assessing enterprise information security readiness. Furthermore, there is no standard approach for analysing cost versus benefit in selecting recommended protection measures. This thesis aims at contributing to the knowledge by developing comprehensive Enterprise Information Security Risk Management (EISRM) framework that integrates typical approaches for information security risk management, and incorporates main components of key risk management methodologies. In addition, for supporting phases of the proposed EISRM framework, analytical models for enterprise information security readiness assessment and cost-benefit analysis are developed. The practical evaluation, using the proposed enterprise information security readiness assessment model has been performed depending on a developed investigation form that used to investigate nine enterprises inside Saudi Arabia. The results demonstrate the effectiveness of the model in assessing and comparing enterprises information security readiness at all levels of the model, using numerical indicators and graphical representations. The EISRM framework and the analytical models presented in this research can be used by enterprises as single point of reference for assessing and cost effectively improving their information security readiness

N-acetylcysteine versus progesterone on the cisplatin-induced peripheral neurotoxicity

Background: Cisplatin-induced peripheral nerve neurotoxicity (CIPN) is the main obstacle in cisplatin treatment. The aim of this study was to compare the modulatory effects of N-acetylcysteine (NAC) and progesterone on CIPN, because there are scarce literature data on the protective effect of the proge­sterone on the CIPN. Materials and methods: Twenty-four rats were divided into four groups: control, cisplatin-treated, concomitant cisplatin-treated and NAC-treated, and concomitant cisplatin-treated and progesterone-treated. Electron microscopic, immunohistochemical, real time polymerase chain reaction and histomorphome­tric analysis; oxidative/antioxidative markers (MDA/GSH and SOD), neurotoxic/ neuroprotective markers (iNOS/nNOS), inflammatory mediators (TNF-a and NF-kB) and BAX were done. Results: The myelin sheath in the cisplatin-treated group elucidated infolding. The myelin was disfigured, degenerated, and extensively split with areas of focal loss. The axoplasm was atrophic. Ballooning and vacuolations of the mitochon­dria with alterations of Remak bundles structures were observed. Fewer of these changes were noted in the NAC and progesterone-treated groups. Decrease of the antioxidant SOD and GSH (81% and 64%) and increase of the oxidant MDA (9 folds), increment of the neurotoxic iNOS (1.9 folds) and decrement of the neuroprotective nNOS (64%) and elevation of the inflammatory mediators’ TNF-a and NF-kB (8.3 and 11 folds) in the cisplatin-treated group. Increase of the antioxidant SOD (1.3 and 2.5 folds) and GSH (120% and 79%) and decrease of the oxidant MDA (69% and 88%), decrement of the neurotoxic iNOS (56% and 68%) and increment of the neuroprotective nNOS (1.6 and one folds) and elevation of the inflammatory mediators’ TNF-a and NF-kB were observed in the NAC and progesterone-treated groups, respectively. Conclusions: The toxic effect of CIPN might be attributed to either oxidative or severe inflammatory stress. Progesterone is efficient in ameliorating these effects; however, NAC is better. (Folia Morphol 2018; 77, 2: 234–245

Minimum Quantity Lubrication in Cold Work Drawing Process: Effects on Forming Load and Surface Roughness

AbstractIn this study, experimental analysis has been employed to evaluate the effects of minimum quantity lubrication on the deformation of aluminium workpiece over a tool. The effects of lubricant on forming loads and surface finish were evaluated under dry and lubricated conditions between die-workpiece sliding surfaces. Palm olein (PO) with dynamic viscosity of 38.9 mPa.s at 40°C in 1, 5, 10, and 20mg amounts were used as test lubricant. A constant forming speed of 10mm/s on the workpiece was used as inputs for the experimental analysis. The load-displacement behaviour was observed during the steady- state condition. It was shown that significant differences exist between lubricant quantity, load-displacement distribution and surface finish of the product

Analyse de la Biodiversité floristique des zones humides du maroc. Flore rare menacée et halophile

Analysis of the moroccan wetlands floristical diversity: rare, threatened and halophilous flora. The moroccan wetlands flora shows a great floristical richness of these ecosystems, estimated at more than 670 species and subspecies (83 families) which can be supplemented by at least 272 others taxa considered rather as terrestrials but can colonize periodically these biotopes. This flora shows a rate of endemism close to 6,5 %, but the most fact is the great proportion of rare or threatened taxa (estimated at 34%). The halophilous flora was a subjet of particular comment considering the prevalence of the salt biotopes in Morocco, either by the number or the extent of the sites. It counts 115 species and subspecies distributed among 20 families