1,326 research outputs found

    Atmosphere Monitoring System in Chemistry Laboratory using WSN

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    The impact of air quality has to be taken into consideration especially when dealing with different chemical gases in an enclosed Chemistry Laboratory. Thus the monitoring of the environment or the air quality in the Chemistry Laboratory is essential to detect the amount of concentration of gases in the air so as to develop appropriate strategies to reduce the adverse effect of air quality on the health of people working in the laboratory. The Environment Monitoring System is designed using the Wireless Sensor Network technology. Wireless Sensor Network along with Internet of Things allows the use of various sensors to detect the environmental condition and to collect the sensor data thus permitting data integration. The system designed to monitor the environmental conditions in the Chemistry Laboratory is divided into three parts:1] Sensor node: That collects and transmits the sensor data to the central repository or the Sink node 2] Sink node: It is the core node in the network performing important functions like data storage, data collaboration, computing and data integration 3] Web Interface: Development of a Web application so as to provide access to the remote user to the sensor data and also for visualization of data in a systematic manner for further analysis. The system consists of sensor nodes designed using the Atmega328 microcontroller along with a nRF24l01 module for wireless communication and various analog sensors. The base station is designed by using the open source hardware Raspberry Pi, nRF24l01 module and analog sensors. A Web Server Interface is created to access the sensor data for the user.   

    Individual Investors – Are they Emotionally Biased?

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    The stock market is a crucial aspect of not just India’s financial market but of the world’s economy as a whole, as it results into massive investments performances. In the fast-moving financial scenario, the traditional finance is unable to explain the irrationality of an individual investor, as they are irrational and influenced by irregularities in financial market. Behavioural finance has earned a lot of significance through its attempts to discover such causes which are behind an investor’s behaviour. The objective of this research paper is to investigate the key impact of behavioural biases in the investment decision making of individual investors. The study consisted of 378 individual investors trading in Indian stock exchanges and data was collected through a questionnaire developed for the purpose of research. The questionnaire was empirically tested after approving its reliability and validity. It is interesting to know the impact of different emotional biases affecting the investment decisions of individual investors. Loss aversion bias, Status quo bias and Optimism bias were studied

    Assessment of drug-drug interactions in the prescription of elderly patients on cardiovascular drugs

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    Background: Cardiovascular disease is one of the major causes of mortality and morbidity in a developing country like India. These patient’s prescription contains multiple drugs to reduce the mortality and morbidity and they also contain drugs for treatment of co morbidities leading to polypharmacy. The main objective of the study was to identify the pattern of drug- drug interaction (DDI) in patients on cardiovascular drugs with various co existing morbidities.Methods: This study was conducted in the Department of General Medicine of a tertiary care center. Prescription of 200 patients were analysed for demographic details like gender, age, comorbidities and drugs prescribed. DDI were assessed using Micromedex software.Results: In this study, conducted on the prescription of 200 elderly patients, 13 (66%) prescription had 408 DDI, of which 158 (39%) were major, 246 (60%) were moderate and 1 (0.02%) was contraindicated and 3 (0.007%) were minor.Conclusions: It can be concluded from the present study that the risk of DDI increases with the increase in number of drugs in the prescription and there is increase in number of drugs in the prescription with the increase in number of co morbidities. The antiplatelet and anticoagulant group of drugs were responsible for majority of DDI, followed by antihypertensives and hypoglycaemic agents. Most of these DDI could be avoided with slight modification in the dosage regimen based on the pharmacokinetics and pharmacodynamics of the drug

    Evaluation of the plantar fascia in patients with diabetes mellitus : the role of sonoelastography

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    Purpose: It has been postulated that hyperglycaemic non-enzymatic glycation of proteins with subsequent accumulation of glycosylated end-products in tissues like the plantar fascia (PF) contributes to the development of foot ulcers in diabetics. The present study evaluates the spectrum of sonoelastographic findings in the plantar fascia in patients with type 2 diabetes mellitus (DM). Material and methods: A total of 81 patients and 32 healthy volunteers were included in the study. PF thickness was registered 1 cm distal to the attachment at the calcaneus. Greyscale ultrasonographic examination was followed by strain elastography of the PF based on which PF were qualitatively categorized into 3 grades (hard, intermediate, soft) depending on their predominant colour. Results: Patients were found to have thicker PF than healthy volunteers (p < 0.0001). Grade 2 (intermediate elasticity) PF was the most common type seen in both groups (48.44% of healthy volunteers and 57.25% of patients). However, a greater number of patients (36.64%) had grade 3, i.e. soft PF as compared to healthy volunteers (9.38%). Conclusions: To conclude, there is thickening and softening of the PF in patients with type 2 DM, supporting the hypo thesis that diabetes-induced changes occur in the tissues of the foot

    Gender Undone: Confronting Bias in the Nuclear Field

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    In the face of evolving security needs, diversity is critical in nonproliferation, nuclear security, and other related fields. Despite multiple studies highlighting the need for gender balance and diversity in the nuclear nonproliferation and security space and targeted recruitment and capacity-building efforts by the International Atomic Energy Agency and states, gains in the representation of women (as well as historically underrepresented groups) have been set back by the gendered effects of the COVID-19 pandemic and slow cultural change at nuclear facilities and organizations. This issue is in large part due to the inability of initiatives aimed at diversity, equity, inclusion, and accessibility (DEIA) to deal with the structural biases of who belongsin nuclear security. Accordingly, this paper will address potential solutions and good practices for reforming organizational nuclear security culture in the United States. Integrating policies to actively confront and undo structural biases and gendered assumptions about women in nuclear security is the start of building DEIA into the broader nuclear industry and its associated organizations. Although bias is an inevitable symptom of the human condition, employers in the nuclear field can work to check biases by integrating DEIA values and assumptions that deal with gender representation into the organizational culture. This paper finds that significantly more transparency and public data reporting is needed in the sector to understand the scope of the challenge and posits the creation of a DEIA nuclear security organizational culture more reflective of DEIA values to strengthen nuclear security and improve the diversity of the nuclear field in the long term

    Harmonic Amplitude Measures to Note Gender Difference

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    The present study was taken up with an objective to find whether harmonic amplitude measures can be used to note gender differences. A total of sixty subjects were divided into two groups. Group I consisted of 30 male subjects and group II consisted of 30 female subjects. They were instructed to produce three trials of sustained vowels (/a/, /i/ and /u/). The harmonic amplitude difference measures (H1-H2; H1-A1; H1-A2 and H1-A3) were extracted from Praat software. Results revealed significant difference between male and female subjects for all the harmonic amplitude difference measures. On measuring the difference between male and female subjects, the values ranged from 3.09 to 24.04. The results are discussed with respect to the underlying physiological differences and glottal chink during phonation across gender. Keywords: Spectrum, FFT, Speech synthesis, Gender, Praa

    SEM-EDAX Analysis of Jarita Vanga and Vanga Bhasma

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    Use of Vanga Bhasma can traced back from ancient era. Detailed description regarding the procedure is available in various Rasagranthas. Jarana is a special technique mentioned in recent Rasa treatises for Puti Lohas which is an intermediate stage between Shodhana and Marana. In this study, after performing both Samanya and Vishesha Shodhana, Vanga was subjected to Jarana using Ashwatha Twak as per the reference of Rasa Tarangini followed by Prakshalana to remove its alkaline nature. Later Vanga was subjected to Putapaka using Bhavana Dravya as Kumari Swarasa. Organoleptic and Elemental constitutions of both Jarita Vanga and Vanga Bhasma where analysed to see the differences and to observe the changes due to Samanya Shodhana and Vishesha Shodhana

    Functionalization of silver nanoparticles on membranes and its influence on biofouling

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    The aim of this project is modifying the attachment of silver nanoparticles (Ag-NPs) on water treatment membranes, such as cellulose acetate (CA), and to observe its effect towards biofouling. Biofouling results from the accumulation of live/dead microorganisms present in water on the membrane surface and pores, and it creates several performance problems such as clogging of pores, higher operating cost, higher pressure drop, etc. Minimizing this would be ideal to lower operating cost and save expensive materials. In this project, Pseudomonas Fluorescens Migula are used because this species generates extracellular polymeric substances (EPS). EPS produced from bacteria helps create a viable structural foundation for biofilm accumulation with densely packed matrices, which in turn fouls the polymeric membranes. In this study, Ag-NPs are added to CA membranes for biofouling minimization. A concern with combining Ag-NP with membranes is the leaching of nanoparticles. If the Ag-NPs are chemically attached to the membranes, it is believed that leaching can be prevented. Different methods of introducing the Ag-NPs to the membranes studied here will include physical blending, chemically-activated blending, and chemically-crosslinked blending

    Inhibitors of pancreatic lipase

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    Obesity is a disorder of lipid metabolism and continues to be a global problem, ranking fifth for deaths worldwide. It also leads to diabetes, cardiovascular disorders, musculoskeletal disorders and some types of cancer. Obesity is regarded as the output of a long-term imbalance between energy intake and energy expenditure. Digestion and absorption of dietary lipids by pancreatic lipase, a major source of excess calorie intake, can be targeted for development of anti-obesity agents. Being the major factor of concern, food materials and edible plants are most widely studied for the anti-obesity activity, so that they can be incorporated in the routine diet. In this review, an attempt was made to present a current scenario of the bioactive compounds from plant and microbial origin that have been investigated for their pancreatic lipase inhibition. Compounds belonging to various classes of natural products such as alkaloids, carotenoids, glycosides, polyphenols, polysaccharides, saponins and terpenoids are well studied while lipophilic compounds from microbial sources are the most active against the pancreatic lipase. Few studies on the synthetic analogues, structurally similar to the triglycerides have been described in the review. Despite of tremendous research on the finding of potential pancreatic lipase inhibitor, very few compounds have entered the clinical studies and no new molecule after orlistat has been marketed. Along with HTS based screening, detailed structure-activity relationship studies on semi-synthetic and synthetic derivatives might also provide a direction for the development of potential lead(s) or pharmacophore for pancreatic lipase inhibition in order to treat and/or prevent obesity and related disorders
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