Challenges in Modelling and Verification of Transmitter Circuits for Advanced Mobile Storage Physical layer

Abstract: Flash memory is a key component of today’s mobile phones providing embedded storage for text and media and removable storage for a variety of purposes e.g. Video. Many standard bodies support mobile storage e.g. sdcard.org, Universal flash storage org. Mobile storage today is evolving continuously with ever increasing bandwidth and capacity demands. IP Blocks and Technologies Groups specializes in providing Host controller and Physical Layer solution for variety of mobile devices including phones, tablets, laptops/ultra-books Current project is focusing on Physical layer design and verification – which consists of Digital Frontend (DFE) including Serial/De-serializer, encoding, decoding schemes, and an analog front-end (AFE) which consists of Transmitter/Receiver Circuits. The Phy also includes PLL, Clock Distribution and Compensation circuits to support DFE and AFE. The focus of the current project is to develop methodology and techniques to validate transmitter circuit for mobile storage comprehensively. DOI: 10.17762/ijritcc2321-8169.15066

Deoxy-sugar releasing biodegradable hydrogels promote angiogenesis and stimulate wound healing

Vascular endothelial growth factor (VEGF) stimulates endothelial cells to migrate, proliferate and form new blood vessels. However direct delivery of VEGF has not become clinically adopted as a means of stimulating blood vessel formation and wound healing because of its relatively poor stability and its production of immature blood vessels. A simpler way of stimulating production of VEGF in situ is explored in this study following reports of deoxy sugars involved in inducing VEGF production. The pro-angiogenic effect of L and D isomers of deoxy sugars (ribose, fucose and rhamnose) loaded into biodegradable chitosan/collagen hydrogels was examined using a chick chorionic allantoic membrane assay. The L-sugars were all pro-angiogenic but only the 2-deoxy-D-ribose had strong effects on angiogenesis. Furthermore, these sugars could not be metabolised by four strains of Staphylococcus aureus, as a metabolic substrate for growth, although some of these could be metabolised by another typical pathogen, Pseudomonas aeruginosa. The effects of 2-deoxy-D-ribose in a chitosan/collagen hydrogel on wound healing were also assessed. This biomaterial doubled the rate of cutaneous wound healing in rats associated with an increase in vascularisation detected by staining for CD34 positive cells

Manufacture Techniques of Chitosan-Based Microcapsules to Enhance Functional Properties of Textiles

In recent years, the textile industry has been moving to novel concepts of products, which could deliver to the user, improved performances. Such smart textiles have been proven to have the potential to integrate within a commodity garment advanced feature and functional properties of different kinds. Among those functionalities, considerable interest has been played in functionalizing commodity garments in order to make them positively interact with the human body and therefore being beneficial to the user health. This kind of functionalization generally exploits biopolymers, a class of materials that possess peculiar properties such as biocompatibility and biodegradability that make them suitable for bio-functional textile production. In the context of biopolymer chitosan has been proved to be an excellent potential candidate for this kind of application given its abundant availability and its chemical properties that it positively interacts with biological tissue. Notwithstanding the high potential of chitosan-based technologies in the textile sectors, several issues limit the large-scale production of such innovative garments. In facts the morphologies of chitosan structures should be optimized in order to make them better exploit the biological activity; moreover a suitable process for the application of chitosan structures to the textile must be designed. The application process should indeed not only allow an effective and durable fixation of chitosan to textile but also comply with environmental rules concerning pollution emission and utilization of harmful substances. This chapter reviews the use of microencapsulation technique as an approach to effectively apply chitosan to the textile material while overcoming the significant limitations of finishing processes. The assembly of chitosan macromolecules into microcapsules was proved to boost the biological properties of the polymer thanks to a considerable increase in the surface area available for interactions with the living tissues. Moreover, the incorporation of different active substances into chitosan shells allows the design of multifunctional materials that effectively combine core and shell properties. Based on the kind of substances to be incorporated, several encapsulation processes have been developed. The literature evidences how the proper choices concerning encapsulation technology, chemical formulations, and process parameter allow tuning the properties and the performances of the obtained microcapsules. Furthermore, the microcapsules based finishing process have been reviewed evidencing how the microcapsules morphology can positively interact with textile substrate allowing an improvement in the durability of the treatment. The application of the chitosan shelled microcapsules was proved to be capable of imparting different functionalities to textile substrates opening possibilities for a new generation of garments with improved performances and with the potential of protecting the user from multiple harms. Lastly, a continuous interest was observed in improving the process and formulation design in order to avoid the usage of toxic substances, therefore, complying with an environmentally friendly approach

Probable Mode of Action of Mukhadooshikahara Lepa in the Management of Mukhadooshika

In Ayurveda classics Mukhadooshika is explained under the context of Kshudra Rogas featuring the formation of Shalamalikantakavat Pidaka. An analogous disorder to Mukhadooshika is Acne Vulgaris, which is a disease of pilosebaceous unit that causes inflammatory and non-inflammatory lesions and varies degree of scarring. Topical applications have been given significance in Ayurveda therapeutics and its emphasis is seen in classical texts. Many Lepa are mentioned in Ayurveda pharmaceutics for the treatment of Mukhadhooshika. One among them is Mukhadooshikahara Lepa mentioned in Sushrutha Samhita Kshudrarogachikitsa Adhyaya. Here an attempt is made to compile the information about this combination

Climacteric Symptoms and Health Status of Menopausal Women -North Karnataka

ABSTRACT Climacteric refers to the period before and after menopause during which ovarian activity diminishes and gradually ceases. This is the transition period which tends to occur over a period of years and begins with the onset of menstrual irregularities and ends with the last menstrual period.During this period number of symptoms are experienced by women.A cross-sectional study was conducted on 168 women aged between 45-49 years.In depth interview was conducted to collect the necessary information. The data collected was analyzed by using SPSS 16.0 version.The prevalence of obesity was found to be the highest 14.3% followed by hypertension 11.3% and DM Type II 9.5%.The most common climacteric symptoms reported were headache, insomnia, frequent urination, pain in knees and lower back, night sweats and stress incontinence.The onset of climacteric symptoms are multidimensional and vary from individual to individual. They reflect combination of genetic makeups, physical activity, diet, life style, cultural influences and individual perception and expectations