Prospecting for scarabid specific Bacillus thuringiensis crystal toxin cry8 gene in sugarcane ecosystem of Tamil Nadu, India

In the present study, we report the occurrence of cry8 positive isolates of Bacillus thuringiensis (Bt) in selected white grub, Holotrichia serrata F. (Coleoptera: Scarabaeidae), endemic soils of sugarcane ecosystem and other places in Tamil Nadu. Out of the 66 soil samples collected and screened for white grub specific Bt, 74 isolates of the bacterium, all containing only spherical crystal toxin, were identified. PCR screening of these isolates with cry8 gene universal primer revealed six isolates to be positive. Further, the amplicon of a 370 bp band, amplified with another set of degenerate primer designed based on the conserved sequence of cry8 genes, was sequenced from four isolates. Multiple sequence alignment revealed the gene sequences to be the same for all the isolates. The present report of the availability of cry8 positive Bt isolates opens the avenue for controlling white grubs through transgenic research

Differential Sandwich Theorems for Some Subclass of Analytic Functions Associated with Linear Operators

" PDF file" DOI : http://dx.doi.org/10.22342/jims.13.1.73.39-5

EmLog:Tamper-Resistant System Logging for Constrained Devices with TEEs

Remote mobile and embedded devices are used to deliver increasingly impactful services, such as medical rehabilitation and assistive technologies. Secure system logging is beneficial in these scenarios to aid audit and forensic investigations particularly if devices bring harm to end-users. Logs should be tamper-resistant in storage, during execution, and when retrieved by a trusted remote verifier. In recent years, Trusted Execution Environments (TEEs) have emerged as the go-to root of trust on constrained devices for isolated execution of sensitive applications. Existing TEE-based logging systems, however, focus largely on protecting server-side logs and offer little protection to constrained source devices. In this paper, we introduce EmLog -- a tamper-resistant logging system for constrained devices using the GlobalPlatform TEE. EmLog provides protection against complex software adversaries and offers several additional security properties over past schemes. The system is evaluated across three log datasets using an off-the-shelf ARM development board running an open-source, GlobalPlatform-compliant TEE. On average, EmLog runs with low run-time memory overhead (1MB heap and stack), 430--625 logs/second throughput, and five-times persistent storage overhead versus unprotected logs.Comment: Accepted at the 11th IFIP International Conference on Information Security Theory and Practice (WISTP '17

The Power and Grace of the Six Face God

The only language in the world that has a God is Tamil. Lord Murugan was the one who developed the Tamil language by being a king and poet in the Tamil Sangams. Murugan means beauty. The worship of Lord Murugan has existed since ancient times. Lord Murugan is full of beauty and wisdom and bestows grace upon his servants and devotees at will. Such a god, Murugan, is considered an incarnation of Lord Shivan. Murugan appeared as the sixth face, Adho Mukham, along with the five faces of Shiva. This study examines the reasons for the emergence of such six faces, the literary references to six main sources, the relationship among the six houses and the six faces mentioned by the poets Nakkheerar, Kumaraguruparar and Arunagirinathar in their poems.&nbsp

Diseases and Medicine referred to in Tamil Epics

Birth is a rare opportunity given by nature to all living beings that appear in the world.  It is our duty to maintain health and protect the body from diseases. Diseases have arisen since the time of man's birth. Diseases are a source of pain for our body. It is customary to wish us to live without disease when others greet us. To live without disease is great wealth. The epics contain information about the definition of the disease, the causes of the onset of the disease, and the types of diseases

Laser Processing of Metals and Polymers

A laser offers a unique set of opportunities for precise delivery of high quality coherent energy. This energy can be tailored to alter the properties of material allowing a very flexible adjustment of the interaction that can lead to melting, vaporization, or just surface modification. Nowadays laser systems can be found in nearly all branches of research and industry for numerous applications. Sufficient evidence exists in the literature to suggest that further advancements in the field of laser material processing will rely significantly on the development of new process schemes. As a result they can be applied in various applications starting from fundamental research on systems, materials and processes performed on a scientific and technical basis for the industrial needs. The interaction of intense laser radiation with solid surfaces has extensively been studied for many years, in part, for development of possible applications. In this thesis, I present several applications of laser processing of metals and polymers including polishing niobium surface, producing a superconducting phase niobium nitride and depositing thin films of niobium nitride and organic material (cyclic olefin copolymer). The treated materials were examined by scanning electron microscopy (SEM), electron probe microanalysis (EPMA), atomic force microscopy (AFM), high resolution optical microscopy, surface profilometry. Fourier transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD). Power spectral density (PSD) spectra computed from AFM data gives further insight into the effect of laser melting on the topography of the treated niobium

The Potential to Build Collective Capacity for Organisational Learning in the Context of Teachers’ Use of Digital Technology for School Improvement

This article considers how digital spaces focused on whole school improvement combined with supportive leadership may be mobilised towards building collective capacity for evidence-informed practice and organisational learning. This topic originated from a qualitative, multi-method design-based research (DBR) project that studied practitioners’ use of an online resource for primary school practitioners called Pathways for school improvement, designed by Oxford University Press (OUP). Semi-structured interviews, participant observations and a documentary analysis were conducted with teachers and senior leaders in five primary schools across England between 2014 and 2016. Connections were made with the dynamic approach to school improvement (DASI) that encourages practitioners to systematically engage with a variety of evidence in their reflections and efforts to design school and classroom improvement strategies. Pathways’ four-step system and series of systematised tasks under each step seemed to provide opportunities for practitioners to explore elements of theory and practice in conjunction with empirical and pupil performance data, and potentially guide them through how to collaborate with others in developing specific whole school approaches to improvement. Opportunities and challenges in developing collective capacity for improvement are also explored

Thorough QT/QTc (TQT) study

With a number of drugs entering the market, cardiac safety remains a cause of major concern for the regulatory authorities, before approval. The incidence of drug induced arrhythmia with non-cardiovascular drugs is low, however the result is fatal, hence much focus is being given to assess the pro-arrhythmic potential of a drug. The arrhythmogenic risk of the drug is higher if the patient is on polypharmacy or has other risk factors such as an electrolyte imbalance or an underlying structural heart disease. QT prolongation can be either due to congenital causes such as Long QT syndromes (LQTS) which include Romano-Ward syndrome, Jervell and Lange-Nielson syndrome or can be acquired, which is mainly due to drugs. Several drugs such as terfenadine, astemizole, cisapride and grepafloxacin have been withdrawn from the market due to QT prolongation and development of a fatal ventricular arrythmia - torsades de pointes (TdP). This has led to implementation of guidelines to assess cardiac safety. The pro-arrhythmic risk can be assessed using thorough QT/QTc studies or exposure response modelling of intensive ECGs. This article will give an overall view of the use of QT/QTc interval as a biomarker for cardiac safety and the current guidelines for thorough QT/QTc studies which are mainly done to assess the pro-arrhythmic potential of a non-anti-arrhythmic drug