Occurrence of Medicinal Plant Pollen in \u3cem\u3eApis cerana\u3c/em\u3e Honeys of Khammam District, Andhra

A pollen analysis of 11 honey samples from Khammam district has been carried out. According to the pollen spectra found, most of them are unifloral (10); 1 sample multifloral. Thirty-two different pollen types were recorded, belonging to 20 families. Twenty-one plants recorded from the honey samples are used as medicinal plants in folklore and tribal medicine

Store choice behavior in food and grocery retailing in India an empirical analysis

Shopping for food and grocery products has witnessed a paradigm shift in Indian retail market with the changes in consumer buying behaviour driven by strong income growth, changing lifestyles and favourable demographic patterns. But the very fast changing trends in consumption patterns, food and eating habits of consumers have contributed immensely to the growth and development of 'Western' format typologies such as convenience stores, discount stores, super markets, and hyper markets. The present study is exploratory in nature to identify and examine the determinant attributes influencing consumer behaviour towards super market store format choice decisions in the fast growing food and grocery retailing in India. The population of the study is confined to the retail customers (7.5 crore) ofAndhra Pradesh state and sampling sources are twin cities of Secunderabad and Hyderabad (58 Lakh population). The 'mall intercept' survey method is adopted to study the attitudes and opinions of retail customers through questionnaires. The descriptive statistical tools (like mean, standard deviation and median) and inferential statistical tools like Factor Analysis, Chi-Square, ANOVA, Correlation, and Multiple regressions are used to test the formulated hypotheses and validate the model. The study has found significant association between shopper attributes and store format choice decisions. The findings revealed that merchandise, customer service, location and atmospheric related store attributes are affecting the store format choice behaviour. The study has discussed various academic and managerial implications for retail industry in general and food & grocery in particular

Patterns of replication in the neo-sex chromosomes of Drosophila nasuta albomicans

Drosophila nasuta albomicans (with 2n=6), contains a pair of metacentric neo-sex chromosomes. Phylogenetically these are products of centric fusion between ancestral sex (X, Y) chromosomes and an autosome (chromosome 3). The polytene chromosome complement of males with a neo-X- and neo-Y-chromosomes has revealed asynchrony in replication between the two arms of the neo-sex chromosomes. The arm which represents the ancestral X-chromosome is faster replicating than the arm which represents ancestral autosome. The latter arm of the neo-sex chromosome is synchronous with other autosomes of the complement. We conclude that one arm of the neo-X/Y is still mimicking the features of an autosome while the other arm has the features of a classical X/Y-chromosome. This X-autosome translocation differs from the other evolutionary X-autosome translocations known in certain species of Drosophila

Computational analysis of viscous dissipation and joule-heating effects on non-Darcy MHD natural convection flow from a horizontal cylinder in porous media with internal heat generation

In the present paper we examine the effects of viscous dissipation, Joule heating and heat source/sink on non-Darcy MHD natural convection heat transfer flow over permeable horizontal circular cylinder in a porous medium. The boundary layer equations, which are parabolic in nature, are normalized into non-similar form and then solved numerically with the well-tested, efficient, implicit, stable Keller-box finite difference scheme. A parametric study illustrating the influence of Darcy parameter (Da), Forchheimer parameter (Λ), Grashof number(Gr), heat source/sink parameter (Ω) and viscous dissipation parameter (Ec) on the fluid velocity, temperature as well as local skin-friction and Nusselt numbers is conducted Increasing Forchheimer inertial drag parameter (Λ) retards the flow considerably but enhances temperatures. Increasing viscous dissipation parameter(Ec) is found to elevate velocities i.e. accelerate the flow and increase temperatures. Increasing heat source/sink parameter (Ω) is found to elevate velocities and increase temperatures. Increasing the Grashof number (Gr) is found to elevate the velocity and decrease the temperatures. Local skin friction number is found to be increases with increasing heat source/sink parameter (Ω) where as Local Nusselt number is found to decrease with increasing heat source/sink parameter (Ω)

Detection of nonstationarity in hydrologic time series

[[abstract]]Detection of changes in hydrologic time series due to intervention by man or natural causes is an important problem. Although intervention analysis has been used in the recent past to analyze nonstationary hydrologic time series, the necessity to specify a model of change and an initial time at which the time series has started to change are obvious disadvantages of intervention analysis. An alternative to intervention analysis is a method which is based on spectral characteristics and an exponential moving average model. The basic objective of the research discussed in the present paper is to test this alternative method. The model is tested by using synthetic uncorrelated and correlated data with step and gradual changes as well as by using real hydrologic time series. The sensitivity of the model to different parameters is also explored. The alternative model is found to be quite accurate in detecting changes in hydrologic time series

Comparison of two linearization schemes for the nonlinear bending problem of a beam pinned at both ends

The nonlinear bending problem of a constant cross-section simply supported beam pinned at both ends and subject to a uniformly distributed load qðxÞ is analyzed in detail. The numerical integration of the two-point boundary value problem (BVP) derived for the nonlinear Timoshenko beam is tackled through two different linearization schemes, the multi-step transversal linearization (MTrL) and the multi-step tangential linearization (MTnL), proposed by Viswanath and Roy (2007). The fundamentals of these linearization techniques are to replace the nonlinear part of the governing ODEs through a set of conditionally linearized ODE systems at the nodal grid points along the neutral axis, ensuring the intersection between the solution manifolds (transversally in the MTrL and tangentially in the MTnL). In this paper, the solution values are determined at grid points by means of a centered finite differences method with multipoint linear constraints (Keller, 1969), and a simple iterative strategy. The analytical solution for this kind of bending problem, including the extensional effects, can be worked out by integration of the governing two-point BVP equations (Monleón et al., 2008). Finally, the comparison of analytical and numerical results shows the better ability of MTnL with the proposed iterative strategy to reproduce the theoretical behavior of the beam for each load step, because the restraint of equating derivatives in MTnL leads to further closeness between solution paths of the governing ODEs and the linearized ones, in comparison with MTrL. This result is opposed to the conclusion reached in Viswanath and Roy (2007), where the relative errors produced by MTrL are said to be smaller than the MTnL ones for the simply supported beam and the tip-loaded cantilever beam problems. 2009 Elsevier Ltd. All rights reserved.Merli Gisbert, R.; Lazaro, C.; Monleón Cremades, S.; Domingo Cabo, A. (2010). Comparison of two linearization schemes for the nonlinear bending problem of a beam pinned at both ends. International Journal of Solids and Structures. 47(6):865-874. doi:10.1016/j.ijsolstr.2009.12.001S86587447

Urban footprint of Mumbai - the commercial capital of India

Urban footprint refers to the proportion of paved surface (built up, roads, etc.) with the reduction of other land use types in a region. Rapid increase in the urban areas is the major driver in landscape dynamics with the significant erosion in the quality and quantity of the natural ecosystems. The urban expansion process hence needs to be monitored, quantified and understood for effective planning and the sustainable management of natural resources. Cities and towns have been experiencing considerable growth in urban area, population size, social aspects, negative environmental and geographical influence, and complexity. Mumbai, the commercial capital of India, has experienced a spurt in infrastructural and industrial activities with globalization and opening up of Indian markets. Unplanned urbanization has resulted in dispersed growth inperi-urban pockets due to socio-economic aspects with the burgeoning population of the city. Consequent to this, there has been an uneven growth pattern apart from the increase in slums in and around the city. This has necessitated the understanding of the urbanization pattern and process focusing especially on the expanding geographical area, its geometry and the spatial pattern of its development. This communication discusses the urban footprint dynamics of Mumbai using multi-temporal remote sensing data with spatial metrics. Land use analysis indicated a decrease of vegetation by 20% with an increase in urban extent by 155% during the last three decades. Landscape metrics aided in assessing the spatial structure and composition of the urban footprints through the zonal analysis by dividing the region into four zones with concentric circles of 1 km incrementing radius from the city centre. The study reveals a significant variation in the composition of the urban patch dynamics with increasing complexity and aggregation of urban area at the centre and sprawl at the outskirts. Shannon's entropy further confirms of sprawl with time. Further zoning with the circular gradients aided in understanding the transition process of land use categories into urban patch

Incipient sexual isolation in the nasuta-albomicans complex of Drosophila: mating preference in male-, female- and multiple-choice mating experiments

Interracial divergence is an important facet of speciation. The nasuta-albomicans complex of Drosophila with sixteen morphologically identical, karyotypically different but cross-fertile races is an excellent system to study a few dimensions of raciation. Drosophila nasuta nasuta, Drosophila nasuta albomicans, Cytorace 1, Cytorace 2, Cytorace 3 and Cytorace 4 of this subgroup have been subjected to male-, female- and multiple-choice mating experiments. Out of 8456 crosses conducted, 7185 had successful matings. The overall impression is that mating is far from random amongst these six closely related races of the nasuta-albomicans complex. The males of D. n. albomicans, Cytorace 1 and Cytorace 4 in male-choice, the females of Cytorace 1 and Cytorace 2 in female-choice, and the males and females of D. n. nasuta, D. n. albomicans, Cytorace 1 and Cytorace 4 against the males and females of Cytorace 2 in multiple-choice experiments, had significantly more homogamic matings than expected. Thus in this study of evolutionary experimentation on raciation under laboratory conditions, we have documented the initiation of preference for con-specific matings among closely related and independently evolving members of the nasuta-albomicans complex of Drosophila

Sugary beverages consumption and latent autoimmune diabetes in adults: systematic review and meta-analysis

Introduction. Sugary beverages consumption (SBC) has amplified globally. SBC is associated with and leads to obesity and chronic diseases, nonetheless the role of SBC in development of autoimmune disorders such as latent autoimmune diabetes in adults (LADA) has not been addressed adequately among the different ethnic groups. We conducted this meta-analysis to compare the random effect of SBC intake on the risk of development of LADA. Methods. We scrutinized the MEDLINE database up until January 2019 for articles addressing the associa­tion between sugary beverages, coffee consumption and LADA. We found 6 studies all of them addressed the LADA. We have included them in the meta-analysis and compared the random effect of SBC from the uppermost to the lowermost quantiles parallel to the risk of LADA. Results. According to the research conducted, and data extracted, which involved 15027 contributors and 1862 patients with LADA, the participants in the uppermost quantile of SBC intake (used 1–2 servings per day in most cases) were at risk of developing LADA more than those in the lowermost quantile (≤ 1 serving per month) (odds ratio [OR] 1.37 [95% CI 1.23–1.52]). Conclusion. According to the meta-analysis results excessive SBC intake may increase the risk of develop­ment of latent autoimmune diabetes in adults. However, no definite conclusions could be drawn due to heterogeneous data from low quality researches and the analysis was based on observational and case-control studies only