2,221 research outputs found
PATTERN OF ANTIBIOTICS UTILIZATION IN NEONATAL SEPTICEMIA: A CROSS-SECTIONAL STUDY FROM RURAL TERTIARY CARE HOSPITAL WESTERN MAHARASHTRA, INDIA
Objective: To assess the quantification of use of antibiotics and to find out empiric antibiotic regimen practiced for neonatal sepsis in rural tertiary health care centre.Methods: A hospital, record based cross-sectional study was conducted in Neonatal Intensive Care Unit(NICU) at tertiary care hospital located in western Maharashtra, India. The study was planned during the year 2011-12 among 84 neonates with sepsis. Data were collected by using proforma includes demographic details, antibiotic prescriptions and relevant information.Results: Among the total 84 neonates, max, 60.71% had a history of term delivery. The proportion of early and late onset of sepsis was 47.61% and 52.38% for which total 18 antibiotics were used of which max, 88.88% were injectables. Amikacin was used in max, 78.57% neonates followed by cefotaxime, 45.23% and ampicillin, 35.71% in single or combination form respectively. Amikacin was used for max; 929 d followed by cefotaxime, 523 d and ampicillin 331 d respectively. Antibiotics used in single, double and multiple regimens were 19.04%, 46.42% and 34.52% respectively. Empiric antibiotic regimens practiced were cefotaxim+amikacin and cefotaxim+ampicillin, of which max, 80% patients were treated with the cefotaxim+amikacin antibiotic regimen. Out of 84 neonates max, 70% were improved at the time of discharge.Conclusion: Neonatal sepsis was well treated by cefotaxim+amikacin empirical injectable regimen with maximum survival
Violation of Porod law in a freely cooling granular gas in one dimension
We study a model of freely cooling inelastic granular gas in one dimension,
with a restitution coefficient which approaches the elastic limit below a
relative velocity scale v. While at early times (t << 1/v) the gas behaves as a
completely inelastic sticky gas conforming to predictions of earlier studies,
at late times (t >> 1/v) it exhibits a new fluctuation dominated phase ordering
state. We find distinct scaling behavior for the (i) density distribution
function, (ii) occupied and empty gap distribution functions, (iii) the density
structure function and (iv) the velocity structure function, as compared to the
completely inelastic sticky gas. The spatial structure functions (iii) and (iv)
violate the Porod law. Within a mean-field approximation, the exponents
describing the structure functions are related to those describing the spatial
gap distribution functions.Comment: 4 pages, 5 figure
Design, development and performance study of six-gap glass MRPC detectors
The Multigap Resistive Plate Chambers (MRPCs) are gas ionization detectors
with multiple gas sub-gaps made of resistive electrodes. The high voltage (HV)
is applied on the outer surfaces of outermost resistive plates only, while the
interior plates are left electrically floating. The presence of multiple narrow
sub--gaps with high electric field results in faster signals on the outer
electrodes, thus improving the detector's time resolution. Due to their
excellent performance and relatively low cost, the MRPC detector has found
potential application in Time-of-Flight (TOF) systems. Here we present the
design, fabrication, optimization of the operating parameters such as the HV,
the gas mixture composition, and, performance of six--gap glass MRPC detectors
of area 27cm 27 cm, which are developed in order to find application
as trigger detectors, in TOF measurement etc. The design has been optimized
with unique spacers and blockers to ensure a proper gas flow through the narrow
sub-gaps, which are 250 m wide. The gas mixture consisting of R134A,
Isobutane and SF, and the fraction of each constituting gases has been
optimized after studying the MRPC performance for a set of different
concentrations. The counting efficiency of the MRPC is about 95% at kV.
At the same operating voltage, the time resolution, after correcting for the
walk effect, is found to be about ps.Comment: Revised version with 15 pages, 14 figures, 2 tables. Accepted for
publication in the European Physical Journal
Natural Language Interface for Java Programming: Survey
It is really difficult for new programmers to deal with the programming language syntax while learning programming .New programmers often struggle because they are forced to learn syntax and general programming skills simultaneously. NaturalJava is a prototype text-based natural language interface for Java programming that accepts English sentences from the keyboard and produces syntactically correct Java source code. This interface mainly contains three components:first is a Sundance which is a partial parser, second is PRISM, A knowledge-based case frame interpreter and third component is Treeface, Abstract Syntax Tree(AST) Manager. This paper aims to provide overview on NaturalJava Prototype which converts english sentences into java source code
Origami Inspired Design of Thin Walled Tubular Structures for Impact Loading
Indiana University-Purdue University Indianapolis (IUPUI)Thin-walled structures find wide applications in the automotive industry as energy absorption devices. A great deal of research has been conducted to design thin-walled structures, where the main objective is to reduce peak crushing forces and increase energy absorption capacity. With the advancement of computers and mathematics, it has been possible to develop 2D patterns which when folded turn into complex 3D structures. This technology can be used to develop patterns for getting structures with desired properties.
In this study, square origami tubes with folding pattern (Yoshimura pattern) is designed and studied extensively using numerical analysis. An accurate Finite Element Model (FEM) is developed to conduct the numerical analysis. A parametric study was conducted to study the influence of geometric parameters on the mechanical properties like peak crushing force, mean crushing force, load uniformity and maximum intrusion, when subjected to dynamic loading.
The results from this analysis are studied and various conclusions are drawn. It is found that, when the tube is folded with the pattern having specific dimensions, the performance is enhanced significantly, with predictable and stable collapse. It is also found that the stiffness of the module varies with geometrical parameters. With a proper study it is possible to develop origami structures with functionally graded stiffness, the performance of which can be tuned as per requirement, hence, showing promising capabilities as an energy absorption device where progressive collapse from near to end impact end is desired
Investigation of Low Reynolds Number Flow and Heat Transfer of Louvered Surfaces
This study focuses on the investigation of flow behavior at low Reynolds numbers by the experimental and numerical performance testing of micro-channel heat exchangers. An experimental study of the heat transfers and pressure drop of compact heat exchangers with louvered fins and flat tubes was conducted within a low air-side Reynolds number range of 20 \u3c ReLp \u3c 225. Using an existing low-speed wind tunnel, 26 sample heat exchangers of corrugated louver fin type, were tested. New correlations for Colburn j and Fanning friction f factor have been developed in terms of non-dimensional parameters. Within the investigated parameter ranges, it seems that both the j and f factors are better represented by two correlations in two flow regimes (one for ReLp = 20 – 80 and one for ReLp = 80 – 200) than a single regime correlation in the power-law format. The results support the conclusion that airflow and heat transfer at very low Reynolds numbers behaves differently from that at higher Reynolds numbers. The effect of the geometrical parameters on the heat exchanger performance was investigated.
The numerical investigation was conducted for further understanding of the flow behavior at the range of experimentally tested Reynolds number. Ten different heat exchanger geometries with varied geometrical parameters obtained for the experimental studies were considered for the numerical investigation. The variations in the louver angle were the basis of the selection. The heat transfer and pressure drop performance was numerically investigated and the effect of the geometrical parameters was evaluated. Numerical results were compared against the experimental results. From the comparison, it is found that the current numerical viscous laminar models do not reflect experimentally observed transitional two regime flow behavior from fin directed to the louver directed at very low Reynolds number ranging from 20 to 200.
The flow distribution through the fin and the louver region was quantified in terms of flow efficiency. The flow regime change was observed at very low Reynolds number similar to the experimental observations. However, the effect of two regime flow change does not reflect on the thermal hydraulic performance of numerical models. New correlations for the flow efficiency � have developed in terms of non-dimensional parameters
A cross sectional study of behavioral problems of secondary school children and related socio-demographic factors
Background: School-going children form an important vulnerable segment of the nation’s population. Children in the school-going age group of 5 to 16 years constitute a total of 30% of the total population. School age is a dynamic period of physical growth and development, when the child undergoes rapid mental, emotional, and social changes. Therefore, school-going children are susceptible groups for psychiatric disorders especially behavioural problems. The present research was carried out with an objective to study the behavioural problems of secondary school children and its relation to the various socio-demographic and socio-economic factors.Methods: This cross sectional observational study was conducted on 304 secondary school children studying in 8th and 9th standard in the regarding socio-demographic profile and Strength and difficulties questionnaire. The analysis was done using Microsoft Excel and SPSS software.Results: In this study, the prevalence of abnormal behavioral according to self-rated SDQ was found to be 1.6% while prevalence of borderline abnormal behavior was 11.2% and majority 87.2% of study subjects were normal having no behavioral problem. The combined borderline and abnormal behavioral problems were more prevalent in the age group of 12-13year (64.1%) and 13-14 years (30.8%), also more prevalent among girls (69.2%) compared to boys (30.8%). The prevalence of behavioral problems was higher among students studying in 9th standard (74.4%, 29/39) and studying in Hindi medium (61.5%). The incidence was found to be more in students who belongs to nuclear families (79.5%) and also was more among those who were first born compared to middle born and last born children. Majority of fathers were working as semiskilled (41.4%) and skilled (32.9%) workers, among the father’s alcohol users (45.06%) were high compared to the tobacco users (31.9%).Conclusions: Socio-demographic factors and occupation of father and alcohol consumption among them was found to be significantly associated with the behavioural problems of the study subjects
The Secrets of Nimadi of Madhya Pradesh: The Nimar Culture
The subject of this study is the role of Nimari culture. The Nimar area, which is situated in Madhya Pradesh, is known for its unique regional culture that incorporates elements of both tribal Madhya Pradesh and Indian cultural history. Despite diverse traditions and customs, they follow and maintain customs and traditions of Indian tribal cultures and grow their culture into one of great wealth and prosperity. Everything about their lifestyle, way of life, manner of work, creativity, and the like, is much like what exists in current civilization. The amalgamation of many faiths, such as Hindus, Muslims, Christians, Jains, and Sikhs, are all wrapped up in their culture. There are a lot of people who like music, dancing, and the many folk songs of many villages. "Hamu kaka baba naporiya" is one of the villages where people get along well and express their love and compassion through song. Additionally, these individuals are very hard-working and loyal. They believe in treating other people the way they want to be treated because they consider other people as their own people with full spirit of faith, love, and devotion. Their way of life is full of colour and good times. They follow a variety of Indian rituals and traditions
Hall effect in cobalt-doped TiO
We report Hall effect measurements on thin films of cobalt-doped
TiO. Films with low carrier concentrations (10 - 10)
yield a linear behavior in the Hall data while those having higher carrier
concentrations (10 - 10) display anomalous behavior near zero
field. In the entire range of carrier concentration, n-type conduction is
observed. The appearance of the anomalous behavior is accompanied by a possible
structural change from rutile TiO to Ti_[n}O Magneli phase(s)
Comparative evaluation of Stevia and Xylitol chewing gum on salivary Streptococcus mutans count ? A pilot study
Stevia is a natural sweetener which is used as sugar substitute. It has been suggested that stevia may be anticariogenic. However, there is limited research in this regard. Hence, the present study was designed to assess reduction in S. mutans in stevia and xylitol chewing gums. The aim of this study is to evaluate the effectiveness of stevia and xylitol chewing gums on salivary Streptococcus mutans count. A randomized triple blinded clinical study with a crossover design included twenty healthy children aged 8-13 years with decayed, missing, and filled teeth (dmft)/DMFT index score ? 3. Before the test, unstimulated saliva was collected. Children divided into Group I and II were given Stevia and Xylitol chewing gums respectively. Saliva samples were then collected at 15 min (just after spitting) and after 1 h. The amount of S. mutans in saliva was evaluated using a selective media (TYCSB). The data were subjected to statistical analysis using statistical software IBM SPSS statistics 20.0 (IBM Corporation, Armonk, NY, USA) Reduction in S. mutans was seen from baseline to 1 hour in both groups in trial and crossover design though intergroup comparison was not statistically significant. There was reduction seen from baseline to 15 minutes and 15 minutes to 1 hour in xylitol and stevia group both in trial and crossover design which was statistically significant. Stevia containing chewing gum is equally effective to Xylitol chewing gum in reducing salivary S. mutans counts
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