Rajesh Varma
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    5017 research outputs found

    A review and evaluation of multi and many-objective optimization: Methods and algorithms

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    Most optimization problems naturally have several objectives, usually in conflict with each other. The problems with two or three objective functions are referred to as Multi-Objective Problems (MOP). However, many real-world applications often involve four or more objectives, which are commonly recognized as many-objective optimization problems (MaOP). Multi and many-objective algorithms have a great application in engineering science. This study addresses a complete and updated review of the literature for multi and many-objective problems and discusses 32 more important algorithms in detail. Afterward, the ZDT and DLTZ benchmark problems for multi-objective test problems are reviewed. All methods have been studied under recent state-of-the-art quality measures. Moreover, we discuss the historical roots of multi-objective optimization, the motivation to use evolutionary algorithms, and the most popular techniques currently in use.</p

    Balancing the Benefits and Ethical Concerns of Using Robots

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    Over the past few decades accelerating improvements in the development of Artificial Intelligence (AI) technology have enabled robots to perform ever more complicated and personalized tasks with greater autonomy that can at times surpass the ability of humans.</p

    Promotion of improved onion technology through FRG System in Fadis and Babile districts of East Haraghe Zone

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    Pre extension demonstration of onion varieties was conducted at Fadis and Babile districts of East Hararghe zone one kebele from one FRG established and 10 trial farmers. Both varieties were sown on 10*10 plot size of demonstration plots with full package technology. The training was given for farmers on onion agronomic practices to make full package technology. The bulb yield of the improved onion varieties (Red Bombay and local) were 22.86, 18.74ton/ha at Erer and 22.00, 17.92 ton/ha Ballina Arba Kebele respectively. The result showed that there was a significant difference between both varieties at &lt;1% level. Red Bombay has a 22.37% yield advantage over local check.</p

    Evaluation of the Existing Food Safety Management System &#40;FSMS&#41; Implemented in Sudanese Sugar industries

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    The present study was conducted in all Sudanese Sugar industries; namely; (Kenana, White Nile, Assalaya, Sennar, Guneid and New Halfa) during production season at 2017. The study aimed to evaluate the existence of food safety Management System implemented by all Sudanese sugar industries with reference to the Food Safety Management System (FSMS) of the International Standard Organization (ISO 22000). The data were collected using ISO 22000 checklist and direct interviews. Likert Five-Point Scale was used in scoring the checklist statement and the arithmetic mean was obtained. The results of the study revealed that the general requirement of the Food Safety Management System was not applicable; score less than (1.8 points) whereas its documentation that supports food safety programs scored major deficiencies in five industries less than 3.4 points. Secondly, the requirement of management responsibility attained non-compliance in three industries. Thirdly, the Requirement of Resource Management in all Sudanese sugar industries had major deficiencies except one factory scored minor deficiency less than 4.2 points. Fourthly, Planning and realization of safe products requirement was non-compliance in three factories less than 2.6 points and not applicable in the rest factories. Finally, the requirement of validation, verification and improvement of food safety programs was not applicable in all Sudanese Sugar Industries where it recorded less than 1.8 points. Lack of top management commitment and involvement and lack of government support represent the main constraints and barriers to implementing food safety systems in Sudanese sugar companies. Sudanese sugar industries need to implement food safety systems like GMP (Good Manufacturing Practices) and HACCP (Hazard Analysis Critical Control Point System) that represent the minimum requirement to implement Food Safety Management System.</p

    Review on Haploid and Double haploid Maize (Zea mays) breeding technology

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    Maize (Zea mays L.) is a plant that is grown for human and animal consumption, as well as biofuel and a range of industrial applications throughout the world. By 2020, it is predicted to outnumber wheat and rice in terms of demand. Farmers pick among two types of maize varieties in modern agriculture. Hybrids and open-pollinated varieties are mostly influenced by the current environmental and economic conditions and availability of seed for the preferred variety type. As a result, minimizing the time required for inbred development is critical in supplying varieties that fulfill the needs of modern farmers. The use of doubled haploid technology is the most effective way to accomplish this. The in vivo technique is widely regarded as a valuable tool for improving breeding efficiency. In maize, in vivo haploid induction has been quite successful and several commercial breeding programs currently use it extensively. Many factors such as anther stage, donor plant, and anther preparation were discovered to influence in vitro haploid induction (Androgenesis) in maize. Color indicators are widely used to distinguish typical fertilization kernels from those produced via haploid induction. Because gamete production is hindered in haploid plants, they are sterile. As a result, haploid chromosome duplication is required to permit self-pollination for seed production and genotype preservation. In the production of maize DH lines and colchicine is the most often used chemical as a chromosomal doubling agent. DHs are the ideal material for genetic improvement and genetic studies of maize because of their utility in homozygous line creation, recurrent selection, and induction of mutation, genetic enrichment, and compatibility with other technologies.</p

    Risk factors influencing the occurrence of anthrax outbreaks at the Livestock-Game interface in Katunguru, Rubirizi district, Uganda

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    Anthrax outbreaks are very frequent and recurrent in the Rubirizi district in landing sites along the Kazinga channel in the Queen Elizabeth National Park in Uganda. This has persistently caused huge losses of domestic and wild animals and increased public health risks to communities. A participatory disease search (PDS) was thus conducted to identify risk factors that influence the recurrent occurrence of the outbreaks. Using PDS tools, including, Focus group discussion, Mapping, Seasonal calendars, Timelines and Pairwise ranking, local communities were engaged to recall detailed information regarding previous anthrax outbreaks. The number of persons that participated in focus group discussions ranged from 16 in Kazinga landing site to 22 in Katunguru, 18 in Kashaka landing site and 20 in Kishenyi landing site The findings revealed anthrax outbreaks had been reported previously in Katunguru, Kyabakara, Katera, Kingu and Ryeyu sub-counties&nbsp; of Rubirizi district that lie within or adjacent to the Queen Elizabeth National Park. The last anthrax outbreak occurred in 2014. Death of goats and sheep and wild animals, especially, hippopotami was reported in the landing sites of Kazinga, Katunguru, Kishenyi and Kashaka in Katunguru Subcounty. Uganda Wildlife Authority (UWA) established burial sites for carcasses of dead hippopotami in Kazinga and Kishenyi landing sites.&nbsp;Key risk factors associated with anthrax outbreaks (see attached ranks) in Rubirizi district included: (1) Frequent droughts and associated floods (2.5); (2) Dwelling in landing sites normally used as burial areas for carcasses of dead animals by Uganda Wildlife Authority (2.8); (3) Free movement of goats and sheep and intermingling with wildlife at landing sites along Kazinga channel (3.0); (4) Community habit of eating the meat of dead wild or domestic animals (3.8); (5) Communities eating not well-cooked meat (4.0); (6) Ignorance among communities regarding anthrax and its mode of spread (4.8); (7) Frequent migration of communities from landing sites with low to those with a high risk of anthrax disease (6.5); (8) Grazing domestic animals in close proximity with wildlife in the Game Park (6.8); (9) Communities consuming game meat (8.0); and (10) Frequent occurrence of anthrax outbreaks and spread of anthrax spores through floods and existing water bodies (8.3).&nbsp;In conclusion, the PDS case study successfully identified risk factors associated with anthrax outbreaks in Katunguru Subcounty of Rubirizi district in Uganda. Sensitization of communities on anthrax, its mode of spread and effective and sustainable control was recommended in order to contain anthrax outbreaks.</p

    Assessment of knowledge and awareness of oral health in rural and urban school teachers in Bareilly city: A cross-sectional study

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    Background: To assess the oral health knowledge and awareness among urban and rural school teachers in and around Bareilly.&nbsp;Materials and methods: A cross-sectional study was conducted on 279 school teachers of rural and urban, Bareilly using a questionnaire to assess the knowledge, and awareness regarding oral health. Descriptive analysis was done and data were analyzed using chi-square and ANOVA test.&nbsp;Results: The age of the teachers ranged from 19-50 years with a mean age of 36.73±10.5 years. Among them, 17.20%(48) were males and 82.7% (231) females, among which 75% of the population brushed their teeth twice daily. Most of the teachers (40.38%) used a brush and paste and 57% of teachers changed their brushes every 3mnths, 10% in every 6 months while 27% were those who changes their brush when their bristles get frayed up.&nbsp;Conclusion: From the results of the study, it is evident that school teachers in both urban and rural areas, with more emphasis on the rural area, need to be provided with adequate training on effective oral hygiene practices.</p

    The influence of smoking on oral health and patient evaluation of tobacco cessation help from dentists working in the dental college of Bareilly city

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    Introduction: Dentists play a key role in assisting patients in quitting smoking. Dentists’ competence in smoking cessation as part of regular patient treatment is studied in this research.&nbsp;Methodology: Two hundred twenty-six patients were selected from the Institute of Dental Sciences Bareilly’s smoke cessation center to complete in-person cross-sectional research about previous dental visits Patients’ smoking patterns, as well as their smoking cessation experience from their dentists, and willingness for dentists to apply smoking cessation recommendations were all covered in the survey.&nbsp;Results: Overall, 38 percent of the subjects were current smokers, 8% were former smokers, and 68% had tried to stop smoking before. Former/non-smokers had significantly greater plaque index, gingival index, and probing depth levels than smokers (p0.05). The dentists’ approach to cessation conversations, on the other hand, was limited to a list of the negative consequences. Only 32% of patients were told about the negative impacts of tobacco, and only a third were encouraged to quit.&nbsp;Conclusions: Smoking causes dental health issues. Dentists in Bareilly City may inquire about their patients’ smoking habits, but they are less likely to provide actual assistance in quitting.</p

    Tachycardia as a cardiovascular risk factor. Role of ambulatory heart rate

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    There is a large body of evidence that resting Heart Rate (HR) is a strong predictor of cardiovascular events and mortality in hypertension [1,2]. This association was consistent across 9 Cohort studies and 7 large clinical trials performed on patients with hypertension [1].</p

    Pilot study of the efficacy of treatment of urticaria by using two traditional Vietnamese herbs administered systemically

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    Among the many plants used in traditional medicine in many countries, Averrhoa carambola L. and lonicera japonica Thunb are regularly the subjects of publications describing the pharmacological effects of their extracts.</p

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    Rajesh Varma
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