A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method

In this paper, we propose a new uniform filter bank (FB) based on the improved coefficient decimation method (ICDM). In the proposed FB’s design, the ICDM is used to obtain different multi-band frequency responses using a single lowpass prototype filter. The desired subbands are individually obtained from these multi-band frequency responses by using low order frequency response masking filters and their corresponding ICDM output frequency responses. We show that the proposed FB is a very low complexity alternative to the other FBs in literature, especially the widely used discrete Fourier transform based FB (DFTFB) and the CDM based FB (CDFB). The proposed FB can have a higher number of subbands with twice the center frequency resolution when compared with the CDFB and DFTFB. Design example and implementation results show that our FB achieves 86.59% and 58.84% reductions in resource utilizations and 76.95% and 47.09% reductions in power consumptions when compared with the DFTFB and CDFB respectively

Measuring Fractional Charge in Carbon Nanotubes

The Luttinger model of the one-dimensional Fermi gas is the cornerstone of modern understanding of interacting electrons in one dimension. In fact, the enormous class of systems whose universal behavior is adiabatically connected to it are now deemed Luttinger liquids. Recently, it has been shown that metallic single-walled carbon nanotubes are almost perfectly described by the Luttinger Hamiltonian. Indeed, strongly non-Fermi liquid behavior has been observed in a variety of DC transport experiments, in very good agreement with theoretical predictions. Here, we describe how fractional quasiparticle charge, a fundamental property of Luttinger liquids, can be observed in impurity-induced shot noise.Comment: 6 pages, 2 figure

ANTECEDENTS AND IMPACT OF INTERNET ADDICTION AMONG INDIAN COLLEGE STUDENTS IN KERALA, INDIA

The present generation of Indian adolescents relies heavily on the Internet which has become an integral part of every Indian college student’s daily routine. As with other developing countries, adolescents and college students in India are dependent on the Internet for both educational and non-educational purposes. Not surprisingly then, Internet addiction has become an increasingly serious societal problem but one which unfortunately has attracted little or no research interest within the Indian context. The present study has been designed to address this issue by investigating how Internet addiction-related behaviors may vary as a function of Indian college students’ perception of their parents’ parenting styles and their emotive states (depression, anxiety, stress), and subsequently, how such Internet addiction-related behaviors may influence their well-being (psychological well-being, loneliness, and academic performance). Overall, the findings from the present study indicate that the parenting styles of mothers and fathers in Kerala, India have differential influences on their children’s psychological well-being, academic performance, and loneliness. The implications of these findings are discussed with reference to the cultural nuances and parameters that circumscribe the Indian college student’s family life

Indigenous Knowledge’s for Healthy Habits and Life

Health and habits are interrelated. Our older generations viewed nature and all living beings as the beads of the same manacle. From rising up early in the morning till the moment of sleep enraptures us at night we are entangled in various activities that goes hand in hand with nature. Our ancestors realized much earlier that the pros and cones of these deeds will reflect through our health

Nature and characteristics of after pain among postnatal mothers admitted in a tertiary care hospital in South India

Background: All postnatal mothers experience pain in some form or the another. Crampy pain in the abdomen known as after pain is a determinant of the uterine involution which is more evident clinically in the first four days postpartum. The present study emerged with a view to study the nature and characteristics of after pain among postnatal mothers at a tertiary care hospital in South India.Methods: A prospective survey design was used for the study. Quota sampling was used to select 100 postnatal mothers, 50 mothers who had caesarean section and 50 mothers who had vaginal delivery. The mothers were enrolled for the study consecutively in 12-24 hours postpartum till the required sample size was obtained in both the groups. A demographic proforma was designed to collect the background information. The characteristics of after pain were assessed using numerical pain rating scale every 24 hours in the first three postpartum days.Results: The mean scores of pain on the first three postpartum days among mothers after vaginal delivery were 2.84, 2.1 and 0.84 respectively and for mothers after caesarean section were 1.6, 1.66 and 0.74 respectively. The scores were greatest on the first postpartum day. No association was found between after pain and variables like mode of delivery and age of the mother. It was found that after pain had an association with with parity on the first and third postpartum days.Conclusions: Since after pain is an indicator of uterine involution, strict protocols should be established in maternity care units for a comprehensive assessment of after pain