Archives-December 2017

For any graph G=( V,E ), the semitotal block graph T_b (G)=H, whose set of vertices is the union of the set of vertices and blocks of G and in which two vertices are adjacent if and only if the corresponding vertices of G are adjacent or the corresponding members are incident in G. For any two adjacent vertices u and v we say that u strongly dominates v if deg?(u)?deg?(v). A dominating set D of a graph H is a strong semitotal block dominating set of G if every vertex in V[T_b (G) ]-D is strongly dominated by at least one vertex in D. Strong semitotal block domination number ?_Stb (G) of G is the minimum cardinality of strong semitotal block dominating set of G. In this paper, we study graph theoretic properties of ?_Stb (G) and many bounds were obtain in terms of elements of G and its relationship with other domination parameters were found.

Functions of multi-Pendula systems in spatial motion in classical mechanics can be derived using the Lagrangian formalism. Limited research has been done for plane and spatial motion of linearly suspended mass units. This paper is therefore intended for multiple (many) masses linearly connected at varying lengths and for relatively small angular displacements in spatial motion. The objective is to develop governing relations of spatial motions in 3-dimensions for multi- pendula systems set to oscillate in space. The basis of the study is to formulate the Lagrangian for a multi-pendula system in spatial dynamics and determine the Lagangian functions and equations of the resultant motions.

In many countries tourism has become a source of wealth and growth, this sector is perceived as a pillar of the national economy. This study examines causal relationships between tourism receipts and economic growth in Tunisia for the period 1965–2012. Granger causality test is used herein to assess the contribution tourism makes to economic growth. Our empirical results support the evidence on the direction of causality. The results indicate that only the tourism receipts affect GDP and not the other. Despite the importance of this sector, its contribution has slowed in recent years. Should therefore encourage manager’s hotels to improve their strategic policies, diversify their products and gain a competitive advantage.

In this paper, the North east corner [ NEM ] procedure is successfully coded and tested via many randomly generated problem instances . Based on the results we can conclude that the correctness of the newly coded NEM is promising as compared with the previously coded one. We select very big problem of Transportation problem using Object oriented programming in Java and develop a NEM in Java Flowchart, Algorithm, program. In this paper submitted in screen short.

The United States is a land of immigrants, and newcomers have a greater propensity to start new ventures, however immigrant-owned businesses, also often fail within the first 5 years. The purpose of this single case study was to explore the strategies U.S.-based Togolese small business owners who were engaged in entrepreneurial activities in Togo used to finance personally led business ventures. The lens of the Schumpeterian entrepreneurship theory underpinned the study represented the conceptual framework. Semistructured interviews of 20 successful Togolese small business owners who resided in the Washington D.C. metropolitan area, and engaged in entrepreneurial activities in Togo, and were in business for more than 5 years constituted the data collection. The analysis of the interview data analysis entailed coding techniques, word clustering, and thematic analysis, using a method of constant comparison with the aid of qualitative data analytical software. Methodological triangulation facilitated further analysis to improve the depth and quality of the study. The key themes emerging from the coding and thematic analysis of interviews included scarcity of loans from banks and financial institutions, the use of personal money to exclusively finance a business or to complete insufficient funding allocated by banks. The findings of the study may serve to improve the business success of immigrant business owners, and immigrant entrepreneurs may use the knowledge to finance business ventures, which could lead to the creation of jobs and improvement in the standard of living of U.S.-based Togolese entrepreneurs. The findings from this study may have a positive bearing on the welfare of local communities in Togo, in contributing to economic growth stimulation.

Existing conventional modes of transportation of people consists of four unique types: rail, road, water, and air. These modes of transport tend to be either relatively slow (e.g., road and water), expensive (e.g., air), or a combination of relatively slow and expensive (i.e., rail). Hyper loop is a new mode of transport that seeks to change this paradigm by being both fast and inexpensive for people and goods. Hyper loop is also unique in that it is an open design concept, similar to Linux. Feedback is desired from the community that can help advance the Hyper loop design and bring it from concept to reality. Hyper loop consists of a low pressure tube with capsules that are transported at both low and high speeds throughout the length of the tube. The capsules are supported on a cushion of air, featuring pressurized air and aerodynamic lift. The capsules are accelerated via a magnetic linear accelerator affixed at various stations on the low pressure tube with rotors contained in each capsule. Passengers may enter and exit Hyper loop at stations located either at the ends of the tube, or branches along the tube length .In this study, the initial route, preliminary design, and logistics of the Hyper loop transportation system have been derived. The system consists of capsules that travel between Amaravathi, Vijayawada and Vijag. The total one way trip time is 35 minutes from county line to county line. The capsules leave on average every 2minutes from each terminal carrying 70 people each (as often as every 30 seconds during rush hour and less frequently at night). This gives a total of 77.4 million people per tube that can be transported each year on Hyper loop. The total cost of Hyper loop is under $6 billion USD for two one-way tubes and 40 capsules. Amortizing this capital cost over 20years and adding daily operational costs gives a total of$20 USD plus operating costs per one-way ticket on the passenger Hyper loop

Violent behaviour has contributed to destruction of facilities, physical disability, anxiety and poor academic performance in schools. In Bungoma County, cases of student violence in secondary schools have been reported in the recent years. For instance, in 2008, eight cases were reported, whereas in 2009 the number rose to over 30 cases. The purpose of the study was to establish teachers’ and students’ perceptions on forms and Psycho-social determinants of violent behavior among public secondary school students in Bungoma County, Kenya. The study was based on the Social learning theory by Albert Bandura which states that learning of behavior is through imitation, reinforcement and identification. A descriptive survey research design was adopted. The study population was composed of 63 Principals, 2,340 teachers, 20,670 form two students and 4 County Education Officers. Stratified random sampling technique was used to select 364 teachers and 1,152 form two students from 213 public secondary schools while 213 Principals and 7 District Education Officers were selected using purposive sampling technique. Questionnaires and in-depth interview guides were used to collect data. Findings of the study revealed that forms of violent behavior as perceived by teachers and students were; rioting, fighting, bullying and sexual violence. Psycho-social determinants perceived by the teachers and students included; anxiety problems, experiencing mental problems and being fearful. It was concluded that rioting was the main form of violent behavior in secondary schools. Recommendations of the study were that: guidance and counseling be reinforced; and consistent control and discipline be encouraged.

Microbial adhesion is a initial and essential step for the attachment of microbes to the host tissues. Adhesion is considered as one of the microbial virulence markers. In view of finding plant based solution to prevent the bacterial adhesion, the present study was undertaken. Invitro experimental study was conducted to screen the antiadherence bioactivity of T. chebula and C. roseus extracts. Both gram positive and gram negative bacterial strains were included in this study. Tube from urine collection bag was used as substratum in the invitro sudy. Innovative Dual Invitro Model System (IDIMS) was used to perform the experiments. Tested specimens were collected and screened under light microscope. Specimens were also subjected to culture and CFUs were counted. The reduced number of bacterial cells in the specimen was recorded from the light microscopic study, and from specimen culture. Decreased number of CFUs were noted. From this we conclude that the T. chebula and C. roseus extracts (singly) as well extract combination possess antiadherence property. Hence we suggest these two plant extracts, singly or their combination can be used as antimicrobial agent to prevent the adhesion of the human pathogenic bacteria to the objects. However further established research in this field is felt essential to bringout new informations and to support our study reports.

A field experiment was conducted to evaluate the resistance and susceptibility of twenty four sugarcane varieties to iron chlorosis in an iron deficient soil (Typic Haplustert). Marked differences were observed among the investigated varieties in respect of their sensitivity to Fe chlorosis. Among the varieties, Co 8021, Co 86032, Co 86249, Co 94005 and Co 94012 recorded higher cane yield and were identified as most tolerant, and recommended for cultivation. Using resistant genotypes proved to be the most effective treatment in reducing chlorosis severity. Occurrence of the chlorosis was found to be associated with SPAD readings, chlorophyll content, and active Fe content of leaves, cane yield and sugar yield.

Mucoperidone carcinoma of the parotid is a very rare tumor and represents 1 to 4% of all parotid tumors. It can be observed at any age, especially in the adult to the 5th decade, but very rarely in the child, nineteen cases have been reported in the world literature, with an equality between the two sexes. We report the case of a 9-year-old girl admitted to consultations for a left lateral-cervical swelling that gradually increases in volume, and has evolved for 3 years. Cervical ultrasounds with an MRI were performed objectifying a tumor of the parotid gland. Total parotidectomy was performed. The extemporaneous biopsy was in favor of a low grade mucoepidemic carcinoma. The surgical procedure was completed by functional lymph node dissection. This is a slow-growing tumor with a non-specific symptomatology. The treatment is essentially surgical. Its prognosis depends on the histological features of the tumor.