Quasi-Degenerate Neutrino Masses with Normal and Inverted Hierarchy

The effects of CP-phases on the three absolute quasi-degenerate Majorana neutrino (QDN) masses are stud-ied with neutrino mass matrices obeying {\mu} - {\tau} symmetry for normal as well as inverted hierarchical mass patterns. We have made further investigations on 1) the prediction of solar mixing angle which lies below tri-bimaximal mixing value in consistent with neutrino oscillation observational data, 2) the prediction on absolute neutrino mass parameter (mee) in 0{\nu}{\beta}{\beta} decay, and 3) cosmological bound on the sum of the three absolute neutrino masses. The numerical analysis is carried out through the parameterization of neu- trino mass matrices using only two unknown parameters ({\epsilon}, {\eta}) within {\mu} - {\tau} symmetry. The results show the validity of QDN mass models in both normal and inverted hierarchical patterns. These models are far from discrimination and hence not yet ruled out. The results presented in this article are new and have subtle ef- fects in the discrimination of neutrino mass models.Comment: 8 pages, gave a contributory Talk at Ist IAS-CERN Singpore, Jan 2012; Journal of Modern Physics (JMP), Vol 2. No.11, November 2011 US

Sintered aluminium heat pipe (SAHP)

This work is the product of an ongoing PhD project in the School of the Built and Natural Environment of Northumbria University in collaboration with the University of Liverpool and Thermacore Europe Ltd. The achievements at the end of the first year are summarized. The main objective of the project is to develop an aluminum ammonia heat pipe with a sintered wick structure. Currently available ammonia heat pipes mainly use extruded axially grooved aluminum tubes as a capillary wick. There have been a few attempts of employing porous steel or nickel wicks in steel tubes with ammonia as the working fluid (Bai, Lin et al. 2009)although it is a common practice in loop heat pipes but there is no report of aluminum-ammonia heat pipes porous aluminium wick structures. The main barrier is the difficulty of sintering aluminum powders to manufacture porous wicks. So far during this project promising sintered aluminum heat pipe samples have been manufactured using the Selective Laser Melting (SLM) technique with various wick characteristics. This SLM method has proven to be capable of manufacturing very complicated wick structures with different thickness, porosity, permeability and pore sizes in different regions of a heat pipe. In addition the entire heat pipe including the end cap, outer tube wall, wick and the fill tube can be generated in a single process

Structural balance emerges and explains performance in risky decision-making.

Polarization affects many forms of social organization. A key issue focuses on which affective relationships are prone to change and how their change relates to performance. In this study, we analyze a financial institutional over a two-year period that employed 66 day traders, focusing on links between changes in affective relations and trading performance. Traders' affective relations were inferred from their IMs (>2 million messages) and trading performance was measured from profit and loss statements (>1 million trades). Here, we find that triads of relationships, the building blocks of larger social structures, have a propensity towards affective balance, but one unbalanced configuration resists change. Further, balance is positively related to performance. Traders with balanced networks have the "hot hand", showing streaks of high performance. Research implications focus on how changes in polarization relate to performance and polarized states can depolarize

An empirical study on maternal and perinatal outcome of placenta previa-risk factors, morbidity and mortality in JNIMS, Imphal, India

Background: The observational study to analyse the maternal and perinatal outcome in pregnancies complicated with placental previa evaluating the potential risk factor, associated with morbidity and mortality.Methods: The study was a prospective longitudinal comprising of all the pregnant women after 28 week of gestation irrespective of gravid and parity that attended or admitted in the department of obstetrics and gynaecology, JNIMS, diagnosed as having placental previa by transabdominal ultrasonography and conducted for the period of 20 months i.e. from October 2017 to June 2019 analyzing 54 cases of placenta previa.Results: During this period there were total of 9967 deliveries with incidence of placenta previa being 0.54% in JNIMS, Porompat. The estimated risk factors out of total 54 cases were 20-30 (52%) years by age group, 25 (46%) gravida, 18 (32%) parity, 36 low lying placenta and 11 cases (20%) preterm.Conclusions: Highest levels of placenta previa are associated with poor maternal and perinatal outcome

Pattern of litterfall and return of nutrients in five Oak species of mixed Oak forest of Manipur, North-East India

Litterfall and its nutrient return in five oak species were studied in the mixed Oak forest in Senapati District, Manipur .Litter production was measured by litter trap method. The total annual litterfall was 958.9 g m-2yr-1.Leaf and non leaf litterfall comprises 76.7 % and 23.3 % of the total litterfall. Maximum litterfall was found in the month of April (193.5 g m-2) and minimum in the month of July (23.7 g m-2).About 70% of the forest floor was replaced each year with turnover time of 1.42 yr.The amount of nutrient return through leaf litter was found to be maximum in Q.polystachya and minimum in C.indica. Nutrients (NPK) concentration of leaf litter of five different tree species was varied among different tree species

Focus Group Interview as a Means to Determine School Effectiveness Indicators / Sueb Ibrahim ...[et al.]

The growth of interest in school effectiveness has been striking and is gaining momentum. Similarly in Malaysia, school effectiveness has become a dominant theme in contemporary educational reform and development. Thus, the growing concern about educational reform has resulted in a wide variety of school effectiveness interventions, initiatives and strategies. Although school effectiveness has become the central focus in most schools, there is still a strong need to determine the constructs or dimensions that are suitable to measure school effectiveness in Malaysian secondary schools. In this study, a focus group interview consisting of eight selected excellent and senior school principals were conducted. The findings from the focus group interview indicated 5 indicators for school effectiveness which comprised academic performance, school programme, organizational effectiveness, learning environment and school achievement. The findings also indicated 15sub-indicators for school effectiveness consisting of curriculum, public exam, student assessment, academic programme, co-curriculum programme, student development, resource management, technology advancement, data and information management, teaching and learning, community relation, staff professional development,, award and recognition, innovation and niche are