Family Influences on Adolescents' Peer Groups: Relations with Parents and Sibling Characteristics

This exploratory study examines the influence of parents and siblings on adolescent peer group characteristics. Seventy-eight sibling dyads from six Bangalore high schools provided data used to explore the relationship between parental knowledge of events (parental monitoring), adolescent individual characteristics, sibling characteristics, and adolescent peer group characteristics. Results indicate that parental monitoring and sibling characteristics do predict adolescent and adolescents’ peers’ and substance use, however, it appears that familial influences on adolescent peer groups are mediated through adolescent characteristics. There is no evidence suggesting that older siblings are more influential than younger siblings or those same-sex sibling dyads are more similar than mixed-sex sibling dy

Prevalence and Susceptibility of extended spectrum beta-lactamases in urinary isolates of Escherichia coli in a Tertiary Care Hospital, Chennai- South India

Extended spectrum beta – lactamases (ESBLs) are on the rise in hospitalsettings across the globe. The presence of ESBLs significantly affects the outcome of an infection and poses a challenge to the management of infection worldwide. Therefore, the aim of the present study is to determine the prevalence and susceptibility of extendedspectrum beta – lactamase in urinary isolates of Escherichia coli (E.coli) in a tertiary care hospital, Chennai-South India. A total of 450 urinary isolates of E.coli were collected over a period of six months from April 2008 to September 2008. Antimicrobial susceptibility testing was determined to commonly used antibiotics using the modified Kirby-Bauer’sdisc diffusion method. ESBL detection was done by the screening method of double disc synergy test and then confirmed by the phenotypic confirmatory test with combination disc as recommended by the Clinical Laboratory Standards Institute (CLSI) and the minimuminhibitory concentration (MIC) method using the E test strips (AB Biodisk,Sweden )- as per manufacturer’s instructions. The prevalence of E.coli ESBL was 60%. The ESBL producing isolates were significantly resistant (p < 0.01) to ampicillin, trimethoprim /sulfamethoxazole, norfloxacin and nalidixic acid as compared to non-ESBL producers.Multidrug resistance was significantly (p < 0.01) higher (69%) in ESBL positive isolates than non-ESBL isolates (21%). Knowledge of the prevalence of ESBL and resistance pattern of bacterial isolates in a geographical area will help the clinicians to formulate theguidelines for antibiotic therapy to avoid inappropriate use of extended spectrum cephalosporins

Seasonal influence on physicochemical parameters of Yelahanka Lake water of Bangalore

Water quality is a term used here to express the suitability of water to sustain various Uses or processes. The phys. and Chem. characteristics of water at Yelahanka lake in Bangalore during the year May 2007-​May 2008 have been studied on the concns. of Toxic substances for drinking water use, or restrictions on temp. and pH ranges for Water supporting invertebrate communities. The pH value of Yelahanka Lake recorded 7.0-​8.2; the pH was found above 7.0 in all the lakes making them alk. The alky. value of Yelahanka Lake ranges from 8.2 NTU-​10.7 NTU. Cond. is good and rapid measure of the solids recorded ranges from 838 μmhos​/cm-​1213 μmhos​/cm, the values obsd. in Yelahanka lake values are very much higher than the prescribed stds. limits (1400 μmhos​/cm) recommended by W.H.O. Cond. increases with increasing amt. and mobility of ions and also can be used an indicator of water pollution. Dissolve oxygen values ranges from 4.0 mg​/1-​7.8 mg​/l. Salinity is the saltiness or salt dissolved salt content of water body. The iron ranges from 0.5 mg​/l-​1.8 mg​/l, in water it occurs mainly in the divalent or bivalent state (ferrous and ferric)​. Iron is the surface water is present in the form of ferric state. The fluoride ranges from 0.23 mg​/l- 0.63 mg​/l, Fluoride in water derives mainly from dissoln. of natural minerals in the rocks and soils with which water interacts. The most common fluorine - bearing minerals are lourie, apatite and micas. Fluoride problems therefore tend to occur where the element is most abundant in the host rocks. The changes of the physico-​chem. characteristics of lake water due to the runoff water from surrounding agricultural fields and concn. of chem. constituents is partially dried up aquatic environment. The svalues for different parameters evaluated fall for below the acceptable limits in the lake studied necessary to drink water after treatment, boiling and filtrations

The effect of chemical mutagen on haemolymph proteins of silkworm, Bombyx mori L.(Lepidoptera: Bombycidae) in F 1 stage

The chemical mutagen Diethylsulphate (DES) was treated to the mulberry silkworm, NB4D2 breed at the age, fifth instar fifth day with different concentrations (8mM and 10mM) by injection and spray methods. The F1 progeny was obtained from DES treated and control sets by selfing the moths. The quantitative analysis of haemolymph proteins revealed that 8mM injection set exhibit higher levels when compared with control and treated sets. The quantitative analysis also clearly indicate the variations in the number as well as intensity of the protein bands

Assessment of growth and yield parameters in Arecanut (Areca catechu L.) through correlation and path analysis under hilly zone of Karnataka

Arecanut (Areca catechu L.) commonly called as betel nut is a high value commercial cropof coastal and Malnad region of Kerala and Karnataka. The present study was carried outat Agricultural and Horticultural research station Sringeri, UAHS Shivamogga in 2018. Thestudy attempts the correlation studies in the germplasm will help to understand the mutualrelationship among various traits and thereby assist in selecting the character contributingto the yield. In addition to this the selection for yield directly is ineffective as yield is affected by many other traits. The highest positive significant for the association of fruit yield per palm was with the fresh kernel weight per palm (0.96g) followed by dry weight of husk per palm (0.89g) and fresh weight of husk per palm (0.89g). Path analysis revealed that nineteen out of thirty-four characters recorded that fruit volume (2.40cc) had highest positive direct effect on fruit yield per palm followed by fresh fruit weight (2.17g) and breadth of leaf sheath (2.11m). It can be concluded that growth and yield characters may be considered in selection criteria for the improvement of yield in arecanut

Proximity Effects in Radiative Transfer

Though the dependence of near-field radiative transfer on the gap between two planar objects is well understood, that between curved objects is still unclear. We show, based on the analysis of the surface polariton mediated radiative transfer between two spheres of equal radii $R$ and minimum gap $d$, that the near--field radiative transfer scales as $R/d$ as $d/R \rightarrow 0$ and as $\ln(R/d)$ for larger values of $d/R$ up to the far--field limit. We propose a modified form of the proximity approximation to predict near--field radiative transfer between curved objects from simulations of radiative transfer between planar surfaces.Comment: 5 journal pages, 4 figure

First-Fit is Linear on Posets Excluding Two Long Incomparable Chains

A poset is (r + s)-free if it does not contain two incomparable chains of size r and s, respectively. We prove that when r and s are at least 2, the First-Fit algorithm partitions every (r + s)-free poset P into at most 8(r-1)(s-1)w chains, where w is the width of P. This solves an open problem of Bosek, Krawczyk, and Szczypka (SIAM J. Discrete Math., 23(4):1992--1999, 2010).Comment: v3: fixed some typo

The Impact of Influence Tactics in Information System Development Projects: A Control-Loss Perspective

Information systems development (ISD) projects are prone to high levels of failure. One of the major reasons attributed to these failures is the inability to harmonize values held by a diverse set of participants in an environment that is characterized by uncertainty due to changing requirements. In this paper, we focus on a relational approach to achieve congruence between a project manager and a team member with respect to influence tactics. Constructs of perceptual congruence and communication congruence that reflect a level of agreement and degree of shared understanding between the project manager and team members are described. A congruence model is constructed and tied to an intermediate outcome variable of control loss. One hundred and thirteen dyadic pairs of project managers and team members are surveyed in order to test the model. The results indicate that having strong relational equity and common understanding can minimize control loss. It is important to consider the perspectives of both the project manager and a team member while formulating and assessing monitoring strategies to promote the success of an ISD project. Especially, encouraging team members to discuss disagreements constructively can motivate them to perform better and keep things under control. Finally, it is critical to address the performance problems as they occur rather than wait until the completion of the project