Disturbing Extremal Behavior of Spot Rate Dynamics

This paper presents a study of extreme interest rate movements in the U.S. Federal Funds market over almost a half century of daily observations from the mid 1950s through the end of 2000. We analyze the fluctuations of the maximal and minimal changes in short term interest rates and test the significance of time-varying paths followed by the mean and volatility of extremes. We formally determine the relevance of introducing trend and serial correlation in the mean, and of incorporating the level and GARCH effects in the volatility of extreme changes in the federal funds rate. The empirical findings indicate the existence of volatility clustering in the standard deviation of extremes, and a significantly positive relationship between the level and the volatility of extremes. The results point to the presence of an autoregressive process in the means of both local maxima and local minima values. The paper proposes a conditional extreme value approach to calculating value at risk by specifying the location and scale parameters of the generalized Pareto distribution as a function of past information. Based on the estimated VaR thresholds, the statistical theory of extremes is found to provide more accurate estimates of the rate of occurrence and the size of extreme observations.extreme value theory, volatility, interest rates, value at risk

Enabling superior m-health project success: a tricountry validation

The healthcare industry is facing increasing pressures to embrace new technologies that support greater patient access to, and higher quality of (but at the same time offer cost-effective), healthcare delivery. This pressure has spawned a plethora of initiatives to embrace the possibilities and potentials of technologies to develop and then diffuse new devices, new pharmaceutical products and support minimal invasive surgical techniques that will facilitate superior healthcare delivery

Plant Specificity of Necrotrophic Fungi Isolated on Wild Radish (Raphanus raphanistrum L.) in Tunisia

The specificity of several fungal species isolated from the wild radish (Raphanus raphanistrum L.) was evaluated on two Brassicacea species, garden radish (Raphanus sativus L.) and rapeseed (Brassica napus L.) under controlled conditions. Most fungal species have attacked the three Brassicaceae plants, suggesting that wild radish, is a relay host for several diseases in garden radish and rapeseed field crops. However, two isolates belonging to, Cercospora armoraciae and Colletotrichum higginsianum, were pathogenic on wild radish plants but not on the other Brassicaceae species. These preliminary results indicate that these two fungi species may be considered as potential biocontrol agents against this weed in Tunisia. Further studies must be conducted on other plant species in order to determine the spectrum of infection of these two fungal species

Effect of Glycocalyx on Red Blood Cell Motion in Capillary Surrounded by Tissue

The aim of the paper is to develop a simple model for capillary tissue fluid exchange system to study the effect of glycocalyx layer on the single file flow of red cells. We have considered the channel version of an idealized Krogh capillary-tissue exchange system. The glycocalyx and the tissue are represented as porous layers with different property parametric values. Hydrodynamic Lubrication theory is used to compute the squeezing flow of plasma within the small gap between the cell and the glycocalyx layer symmetrically surrounded by the tissue. The system of non linear partial differential equations has been solved using analytical techniques. The model predicts that decrease in glycocalyx thickness reduces the axial velocity of plasma and the resistance to flow increases in presence of glycocalyx

Evaluation of Representative Microbiological Sampling Sites of Goat and Sheep Dressed Carcasses

Statistical analysis of data of number of sampling points for microbial counts representing the entire goat/sheep carcass was carried out. Thirtytwo sampling points were evaluated out of which fourteen were found to represent the entire dressed carcass for assessing its hygienic efficacy

STANDARDIZATION OF VARNYA DRAVYA (COMPLEXION PROMOTERS) WITH SPECIAL REFERENCE TO YASHTIMADHU AND MANJISHTA CHURNA – AN ANALYTICAL STUDY

Standardization of drugs refers to the confirmation of its identity and determination of the quality and purity. Herbal drug technology is used for converting botanical materials into medicines, where standardization and quality control with proper integration of modern scientific techniques and traditional knowledge are important. However, the quality control and quality assurance still remains a challenge because of the high variability of chemical components involved. Most of the pharmaceutical industries are using substitute drugs in place of authentic drugs. So to manufacture and deliver the best quality drugs, it is essential to authenticate the raw drugs. Keeping the current inclination in mind, Varnyadravya or the complexion promoting drugs such as Yashtimadhu (Glycirrhizia glabra) and Manjishtha (Rubia Cordifolia) churna were subjected for standardization procedures. From the current study, genuinity indicating parameters for both Yashtimadhu churna (powder) and Manjishthachurna were derived

Trends of Research studies on Gridhrasi

Gridhrasi is a pain dominating Vata Vyadhi and is surge in incidence is alarming. A large group of patients with this condition suffer from limited or restricted daily routine activities and is posing burden on socioeconomic life of an individual. This disease is being studied routinely in postgraduate departments, this article attempts to assess the trends and pattern of research studies conducted till date on the subject and also to highlight the unexplored areas to bring out the best possible solution for this malady. Number of studies are targeted on assessing the therapeutical potential of a modality or a drug and least number of studies are targeted on the studying the disease pathology

A High Precision Study of the QQ(bar) Potential from Wilson Loops in the Regime of String Breaking

For lattice QCD with two sea quark flavours we compute the static quark antiquark potential V(R) in the regime where string breaking is expected. In order to increase statistics, we make full use of the lattice information by including all lattice vectors R to any possible lattice separation in the infrared regime. The corresponding paths between the lattice points are constructed by means of a generalized Bresenham algorithm as known from computer graphics. As a results we achieve a determination of the unquenched potential in the range .8 to 1.5 fm with hitherto unknown precision. Furthermore, we demonstrate some error reducing methods for the evaluation of the transition matrix element between two- and four-quark states.Comment: 6 pages, 7 figure

OMDT: Online Mathematics Diagnostic Tool Report – 2019

The Pacific region faces an acute problem of numeracy skills. This is due to various factors such as resources, unqualified mathematics teachers, different curriculum in the countries and their coverage, lack of localized textbooks and learning materials, and many more. Consequently, students are deprived of good mathematics and sometimes certain mathematics topics are compromised. They arrive for their tertiary journeys with different levels of mathematics, many of them are already in the at-risk category even before they join the university, and hence are set to fail in their programmes right from the start. All these invariably show the dire and genuine need for OMDT