825 research outputs found

    An Examine the Relationship between Participative Management Style and Student satisfaction

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    In modern world, many different management styles are implemented by managers to enhance individual and collective efficiency of stakeholders.  The study surveys the efficacy of participative management style that to what extent it is effective in the modern educational requirements. The study was conducted on one hundred seven students. The data were collected through a questionnaire regarding the type of management educational managers/administrators practice in their organizations.  Participative management style millions of public sector students could be given harmonious educational environment which is friendly, accommodating and helpful in their academic career and could bring back the golden days of public sector schools. Hence, the study suggests that public sector school managers should be offered management courses frequently so that by implementing participative management style quality education could be ensured. Key Words: Management, educational managers, collective efficacy, participative management

    Preliminary Phytochemical and Antimicrobial Properties of Pueraria tuberosa (Willd.) DC: A Potential Medicinal Plant

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    In vitro antimicrobial and chemical properties of petroleum ether, ethyl acetate and ethanol extracts of Pueraria tuberosa were evaluated. Among the test samples ethyl acetate extract showed pronounced antimicrobial activity, while ethanol extract exhibited the least activity and petroleum ether extract failed to inhibit the test pathogens. Preliminary phytochemical analysis of extracts revealed the presence of antimicrobial compounds such as alkaloids, flavonoids, coumarins, volatile oils and glycosides. The phenolic compounds and flavonoids were abundant in ethyl acetate extract when compared to other extracts. The broad spectrum of antimicrobial activity of ethyl acetate extract may be due to the presence of flavonoids. Based on the observations, P. tuberosa appears to be a valuable source for antimicrobial principles

    Traditional Medicine Used by the Adivasis of Eastern Ghats, Andhra Pradesh - For Bone

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    The present survey provides information on the therapeutic properties of 21 crude drugs used for bone fractures by the natives of Eastern Ghats. Of the twenty one species that are presented here, fourteen had not been previously reported. Information on botanical name, vernacular name, family, part used, mode of drug preparation and administration is provided

    A case of idiopathic edema after opioid abuse cessation: can failed aldosterone escape be implicated?

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    Edema is a recognized complication of ongoing heavy opioid use, regardless of the means of delivery or the specifics of the drug in question. The mechanism responsible remains incompletely understood. Hypotheses currently offered include increased Anti-Diuretic Hormone (ADH) secretion, histamine-mediated permeability changes, independent opioid-receptor mediated fluid retention and an exacerbation of pre-existing vascular compromise. Authors report a case of a 39yr old lady in whom edema emerged 7 months after cessation of opioid abuse. All secondary causes of edema were excluded by an exhaustive battery of investigations. The edema failed to recede with loop diuretics, and resolved only on institution of spironolactone, on which she maintained improvement. This case study reinforces hypotheses of ADH likely mediating opioid associated edema and suggests that aldosterone receptor antagonists are probably a superior class of drugs in opioid-associated edema. It also suggests that the physiological changes caused by opioid use that are responsible for edema are likely stable and persist well beyond the period of actual use. Reformed opioid abusers who never received OST are a huge population whose unique physiological status is likely to yield valuable insights into not just the pathology of opioid-abuse related edema, but the pathology of opioid use as a whole

    Dynamical behavior of a time-delayed infectious disease model with a non-linear incidence function under the effect of vaccination and treatment

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    When an infectious disease propagates throughout society, the incidence function may rise at first due to an increase in pathogenicity and then decrease due to inhibitory effects until it reaches saturation. Effective vaccination and treatment are very helpful for controlling the effects of such infectious diseases. To analyze the impacts of these diseases, we proposed a new compartmental model with a generalized non-linear incidence function, vaccination function, and treatment function, along with time delays in the respective functions, which show how its monotonic features influence the stability of the model. Fundamental properties of a model, such as positivity, boundedness, and the existence of equilibria, are examined in this work. The basic reproduction number has been computed, and correlative studies for local stability in view of the basic reproduction number have been examined at the disease-free and endemic equilibrium points. A delay-independent global stability result has been established, and to be more precise, we explicitly derived the result on global stability by restricting delay parameters within a very specific range. Furthermore, numerical simulations and some examples based on COVID-19 real-time data are pointed out to emphasize the significance of how the disease's dynamical behavior is characterized by various functions for controlling the spread of disease in a population and to justify the mathematical conclusions.Comment: 25 pages, 19 figure

    Activity of radon (222Rn) in the lower atmospheric surface layer of a typical rural site in south India

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    Analysis of one year measurements of in situ radon (222Rn) and its progenies along with surface air temperature, relative humidity and pressure near to the Earth’s surface has been carried out for the first time at the National Atmospheric Research Laboratory (NARL, 13.5∘N and 79.2∘E) located in a rural site in Gadanki, south India. The dataset was analysed to understand the behaviour of radon in relation to the surface air temperature and relative humidity at a rural site. It was observed that over a period of the 24 hours in a day, the activity of radon and its progenies reaches a peak in the morning hours followed by a remarkable decrease in the afternoon hours. Relatively, a higher concentration of radon was observed at NARL during fair weather days, and this can be attributed to the presence of rocky hills and dense vegetation surrounding the site. The high negative correlation between surface air temperature and activity of radon (R = – 0.70, on an annual scale) suggests that dynamical removal of radon due to increased vertical mixing is one of the most important controlling processes of the radon accumulation in the atmospheric surface layer. The annual averaged activity of radon was found to be 12.01±0.66 Bq m−3 and 4.25±0.18 Bq m−3 for its progenies, in the study period

    Efficient removal of methyl orange using magnesium oxide nanoparticles loaded onto activated carbon

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    ABSTRACT. In this work, an activated carbon composite made with magnesium oxide nanoparticles (MgONP-AC) was effectively utilized for methyl orange (MO) adsorption. The effect of pH (6-10), mass of MgONP-AC (0.1-0.3 g/L), initial MO concentration (10-30 mg/L), and temperature (283-323 K) on MO removal was investigated using a central rotatable composite experimental design based on the response surface technique (RSM) at an equilibrium agitation period of 60 min. The studies predicted the optimal MO removal of 98.99% at pH 7.68, MgONP-AC dosage of 0.24 g/L, and starting MO concentration of 15 mg/L, and temperature of 313 K. Furthermore, an artificial neural network (ANN) was utilized to simulate MO adsorption, and it properly predicted MO removal using mean squared error (MSE) and R2 for the testing data. The ANN predicts a maximum removal of 99.63% with ANN with R2 = 0.9926. The kinetic results suited the pseudo-second order kinetic equation, and the data from the equilibrium investigations corresponded well with the Langmuir isotherm (maximum uptake capacity qmax = 346 mg/g). Endothermic, spontaneous, and physical adsorption were discovered during the thermodynamic investigations.   KEY WORDS: Adsorption, Artificial neural network, Experimental design, isotherms, Kinetics, Methyl orange, MgONP-AC   Bull. Chem. Soc. Ethiop. 2022, 36(3), 531-544.                                                                DOI: https://dx.doi.org/10.4314/bcse.v36i3.

    PERIODATE OXIDATION OF PEG–600, AN ESSENTIAL PHARMACEUTICAL POLYMER

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    Objective: To study the kinetics of periodate oxidation of polyethylene glycol-600 (PEG-600), a familiar non-toxic polymer used in pharmaceutical and other fields of industry. Methods: Reactions were carried out in alkaline medium and measured the kinetics by iodometry. One oxygen atom loss or two electrons transfer was observed per each molecule of periodate i.e., the rate of reaction was measured periodate converts to iodate because the formed iodate species is unable to oxidize the substrate molecules. Results: Based on log (a-x) versus t plots, order w. r. t. oxidant (periodate) is unity. Reactions were found to be independent of substrate (PEG-600) concentration. A decrease in rate with an increase in alkali concentration [OH–] was found and order was inverse fractional. Temperature dependence of reaction rate was studied and then calculated the corresponding Arrhenius parameters. Conclusion: An appropriate rate law was proposed by considering the above experimental results

    Medicinal Properties and Antimicrobial Activity of \u3cem\u3eCrotalaria madurensis\u3c/em\u3e Var. \u3cem\u3ekurnoolica\u3c/em\u3e

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    This paper deals with the antimicrobial and phytochemical studies of Crotalaria madurensis Wt. var. kurnoolica Ellis et Swaminathan. (Fabaceae), an endemic medicinal plant found in the forests of Nallamallias of Eastern Ghats of India. The ether and ethyl acetate extracts of the plant material exhibited a broad spectrum of antimicrobial activity on human pathogenic microorganisms of six bacterial and two fungal strains. The minimum inhibitory concentrations were provided. The results were supported by phytochemical analysis
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