963 research outputs found
Perfect (super) Edge-Magic Crowns
A graph G is called edge-magic if there is a bijective function f from the set of vertices and edges to the set {1,2,…,|V(G)|+|E(G)|} such that the sum f(x)+f(xy)+f(y) for any xy in E(G) is constant. Such a function is called an edge-magic labelling of G and the constant is called the valence. An edge-magic labelling with the extra property that f(V(G))={1,2,…,|V(G)|} is called super edge-magic. A graph is called perfect (super) edge-magic if all theoretical (super) edge-magic valences are possible. In this paper we continue the study of the valences for (super) edge-magic labelings of crowns Cm¿K¯¯¯¯¯n and we prove that the crowns are perfect (super) edge-magic when m=pq where p and q are different odd primes. We also provide a lower bound for the number of different valences of Cm¿K¯¯¯¯¯n, in terms of the prime factors of m.Postprint (updated version
ANTIDIABETIC POTENTIAL OF THE OYSTER MUSHROOM PLEUROTUS FLORIDA (MONT.) SINGER
Objective: The present investigation comprises, in vitro antidiabetic activity such as α-amylase and α-glucosidase inhibitory activities and in vivo antidiabetic activity of methanolic extract of Pleurotus florida.Methods: The fruiting bodies of Pleurotus florida were obtained from Mushroom Unit, Department of Biology, Gandhigram Rural Institute-Deemed University, Gandhigram, Dindigul, Tamil Nadu, India. Sample preparation, qualitative phytochemical analysis, in vitro antidiabetic activities namely α-amylase and α-glucosidase inhibitory activity and in vivo antidiabetic activity namely evaluation of alloxan induced diabetic rats were carried out following the methods reported previously.Results: In vitro and in vivo antidiabetic activity of P. florida exhibited significant results for its α-amylase (94.93±1.75 % at 1000 µg/ml) and α-glucosidase inhibitory activity (84.90±0.42 % at 1000 µg/ml) in a dose-dependent manner. The extract also showed significant antidiabetic activity on in vivo (p<0.05) at the tested dose level (200 mg/kg b. w) this was comparable to Glibenclamide, a standard antidiabetic drug.Conclusion: The presence of phytochemicals namely phenols, flavonoids, saponins, tannins and terpenoids may be responsible for such antidiabetic activity. These results reveal that P. florida can be used as a potential antidiabetic agent
Improved Performance of Four Switch Three Phase with SEPIC-Based Inverter
The proposed novel four-switch three-phase (FSTP) inverter is to design to reduce the rate, difficulty, mass, and switching losses of the DC-AC conversion system. Here the output line voltage cannot exceed half the input voltage in the out-dated FSTP inverter and it operates at half the DC input voltage. Single-Ended Primary-Inductance Converter (SEPIC) is a novel design for the FSTP inverter proposed in this paper. In this proposed topology the necessity of output filters is not necessary for the pure sinusoidal output voltage. Related to out-dated FSTP inverter, the proposed FSTP SEPIC inverter raises the voltage utilization aspect of the input DC supply, where the suggested topology delivers the higher output line voltage which can be extended up to the full value of the DC input voltage. In the proposed topology a control used called the integral sliding-mode (ISM) control and this control is used to enhance its dynamics and to ensure strength of the system during different operating conditions. Simulation model and results are used to authorise the proposed concept and simulations results show the effectiveness of the proposed inverter
A STUDY ON FACTOR PATTERNS OF RETAIL STORES INFLUENCING THE BUYING BEHAVIOUR IN COIMBATORE CITY
The surfacing of retail market structure has observed a significant change in the recent days in India. Both the evolving demand of customers and the intensified competition among the domestic and foreign companies have created a pressure for the need of innovations in rendering services in the emerging market. Measuring service quality has thus come in a way to examine the areas in which one has to improve and compete successfully. This study evaluates applicability of a widely accepted scale, Retail Service Quality Scale (RSQS) in India. Factor analyses of the component structures indicate good fit of the RSQS dimensions and the items. The present study aims at identifying the factors patterns of supermarkets influencing the buying behaviour. The study is based upon a response of 200 respondents with convenience sampling. The research data were collected by using questionnaire and validated to the present study. Factor analysis was employed to identify factor loadings. As per factor analysis the loadings were grouped into 6 categories from 24 factors. The study revealed the factor patterns of retail services in Indian retail stores with special reference to Supermarkets and Hypermarkets in Coimbatore City
Energy Crisis and Recent Technological Development in India
Now-a-days demand of the electricity is increasing. India has struggled to resolve its energy shortage problems for decades. As the country is now facing an exotic energy crisis, the drive to find effective long-term energy solutions is stronger now than ever before. Renewable energy resources such as wind and solar energy are abundant in India. It is environmental friendly and also low cost. Renewable energy is only the root causes of this demand. The present situation of the electricity production and its consumption in the country were discussed. The solar energy generation potential of India in different sectors to produce energy is viewed. Energy crisis of solar energy has been reporting in MNRE (Ministry of New and Renewable Energy). In our nation, we are using some types of solar scheme. Under that scheme solar park and solar rooftop are popularly in practice to produce solar energy. The importance of utilization of solar energy resources for the production of electric power. The production rate is high in Tamil Nadu and Rajasthan, but low in Meghalaya and Puducherry. These renewable energy resources can play an effective and also considerable role in contributing toward energy security of the country. Developments of solar technology in before and after independent were presented and the future developments were discussed. Some prediction is made on the basis of preliminary observations. The flow chart of an estimated forecast of demand and supply of electricity for the next ten years is also projected in this paper. Keywords: Renewable Energy, Solar Energy, Power Production, total installation, Renewable energy sources (RES), Ministry of New and Renewable Energy (MNRE), solar technolog
Citespong House Of Drug Rehabilitation Center
Narkoba seringkali disalahgunakan oleh banyak kalangan masyarakat. Ketergantungan pengguna narkoba ini sulit untuk disembuhkan, tidak hanya karena zat nikotin yang terkandung didalamnya tetapi juga lingkungan yang tidak sehat dan keinginan pengguna narkoba itu sendiri. Rehabilitasi narkoba menjadi sebuah wadah untuk memberikan pertolongan agar pengguna narkoba dapat sembuh. Namun, banyak rehabilitasi narkoba di Indonesia yang belum memperhatikan lingkungan sebagai faktor penting dalam proses penyembuhan. Therapeutic Environment adalah USAha penyembuhan pasien dengan menggunakan berbagai pengobatan melalui metode-metode medis, sosial, moral hingga lingkungan fisik. Pengaplikasian metode Therapeutic Environment diharapkan mampu mempengaruhi perilaku dan psikologi pengguna narkoba melalui perancangan ruang berbasis lingkungan
Prescription status of Respiratory tract infection – a survey report
Objective: The present study was carried out to investigate the Self-medication and non-doctor prescribing of drugs used for respiratory tract infection in developing countries. Problems and factors responsible for this practice in SouthIndia.Methods: The survey was based on the questionnaire method; it was carried out from 1000 respondents at different pharmacies.Results: Literate persons (56%), monthly income between INR.3000- INR.10000 (39%) and also age group between 21-40years (66%) are more prone to self medication. The reason for deviation in self-medication is due to economical condition (57%), lack of time (22%), mild illness (12%), less treatment awareness (9%). Apart from this, some deviations are commonly seen among the prescription following respondents. Most probable respondents are due to financial condition (65%), others are brand name, dosage form, etc.Conclusion: The present study was concluded that pharmacists are one of the key person for prevention of communicable and non-communicable diseases and also improving patient compliance. These types of problems can be prevented by patient education should be strengthened.Keywords: Respiratory tract infection, prescription, self-medication, patient counseling, role of pharmacist
Prospek Proyek Pembukaan Pemboran Sumur Minyak X Pada Lapangan X PT Pertamina Ep Asset 2 Field Prabumulih
PT Pertamina adalah sebuah Perusahaan yang bergerak dibidang perminyakan dan pergasan. Pengelolaan kontraknya dengan pemerintah dengan cara kontrak bagi hasil. Investasi untuk menemukan minyak atau gas di dalam bumi sampai siap berproduksi memerlukan dana atau investasi yang sangat besar, sehingga sebelum investasi tersebut dilakukan harus dikaji dulu apakah investasi tersebut prospek atau tidak untuk dilakukan. Jika investasi tersebut prospek maka dilakukan proyek investasi (go), jika tida maka tidak dilakukan (no go). Dalam analisa ekonomi ada 4 cara penilian atau kriteria untuk menilai apakah investasi tersebut prospek atau layak, yaitu : pay out time (POT), net present value (NPV), rate of return (ROR), dan profit to investment ratio (PIR). Semakin pendek payback period, maka investasi sangat prospek atau layak dilaksanakan, apabila NPV positif menunjukan investasi prospek atau layak, apabila ROR lebih besar dari interest rate yang ada menunjukkan investasi prospek atau layak dan apabila profit to investment ratio besar dari 1 maka ini juga menunjukkan investasi prospek atau layak. Dari analisa ekonomi yang dilakukan terhadap rencana PT Pertamina melakukan pemboran sumur X didapat angka-angka sebagai berikut : pay out time (POT) 2,54 tahun, NPV positif sebesar $ 2.952.513, ROR 20,82 %, dan profit to investment ratio 2.45, sehingga investasi ini dinilai prospek dan dapat dilaksakan
Heavy landings of juveniles of Indian scad, Decapterus russelli at Munambam Fisheries Harbour
Among the carangid fishes, the Indian scad,
Decapterus russelli is an important pelagic fish and
a major commercial species contributing to the
marine fisheries of Kerala. The fish is locally called
“kozhuchala” and it forms a regular fishery. The
species is often caught as by-catch in shrimp trawl
nets having cod-end mesh sizes ranging from 15 mm
to 20 mm that is operated in the depth range of 55-
90 m almost throughout the year. They are consumed
fresh as well as sun dried form
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