Distributed Iterative Graph Processing Using NoSQL with Data Locality

A tremendous amount of data is generated every day from a wide range of sources such as social networks, sensors, and application logs. Among them, graph data is one type that represents valuable relationships between various entities. Analytics of large graphs has become an essential part of business processes and scientific studies because it leads to deep and meaningful insights into the related domain based on the connections between various entities. However, the optimal processing of large-scale iterative graph computations is very challenging due to the issues like fault tolerance, high memory requirement, parallelization, and scalability. Most of the contemporary systems focus either on keeping the entire graph data in memory and minimizing the disk access or on processing the graph data completely on a single node with a centralized disk system. GraphMap is one of the state-of-the-art scalable and efficient out-of-core disk-based iterative graph processing systems that focus on using the secondary storage and optimizing the I/O access. In this thesis, we investigate two new extensions to the existing out-of-core NoSQL-based distributed iterative graph processing system: 1) Intra-worker data locality and 2) Mincut-based partitioning. We design an additional suite of data locality that moves the computation towards the data rather than the other way around. A significant improvement in performance, up to 39\%, is demonstrated by this locality implementation. Similarly, we use the mincut-based graph partitioning technique to distribute the graph data uniformly across the workers for parallelization so that the inter-worker communication volume is minimized. By extensive experiments, we also show that the mincut-based graph partitioning technique can lead to improper parallelization due to sub-optimal load-balancing

Immune Response to Hepatitis B Virus Vaccine

Hepatitis B virus (HBV) infection is a major public health problem and its outcome depends on the kinetics of the virus host interaction and in particular on the strength of the immune response.this study was done to illustrate some immunological in vaccinees and effectiveness of HBV vaccine in vaccinees groups . This study was conducted from September , 2011 to October, 2012 .   ELISA  assay was used for detection  of  hepatitis B virus surface antigen  as well as  IgM- anti hepatitis  B-core antigen  . This study was also include measurement of anti- HBsAg level  to detect the immune response in vaccinees  . It was found that significant differences in the antibodies levels  according to post vaccination periods  and the highest antibodies level in male and female was reached after 90 days post 3rd dose of vaccination , it was  124.85 mIU/ml and 155.94 mIU/ml in male and female respectively.  There was also significant differences in (IL-2 it was found that the highest level of IL-2 was reached  27.21 pg/ml and 33.94 pg/ml  90 days post 3rd dose  of vaccination in male and female respectively. Keyword: Hepatitis B vaccinees, anti-HBsAg, HBsAg, anti-HBcAg, IL-2

Higher education financial sustainability in Ghana: A study of the perceived influential factors

The quest by public higher educational institutions to increase access is heavily dependent on financial sustainability through sustained income and liquidity. This has necessitated these institutions globally to undertake revenue enhancement measures and cost management initiatives to close budgetary gaps. The study’s primary focus is to examine critical management factors that impact on university’s financial stability and competitiveness. This correlational survey study sought to establish the depth of the relationship between the following management factors; financing scheme, governance framework, and cost management, accounting information system, and pricing approach, on financial sustainability. The study’s outcome established a statistically significant relationship between all of the five factors on one hand and financial sustainability on the other hand. The findings further showed that three of the five factors: governance framework, cost management and pricing approach were significant in predicting a best fit equation for financial sustainability. The study’s recommendations should assist policymakers and higher education managers to review policies and legislations on cost and competitive fees structure of public higher education institutions in Ghana

What the Smell? An Empirical Investigation on the Distribution and Severity of Test Smells in Open Source Android Applications

The widespread adoption of mobile devices, coupled with the ease of developing mobile-based applications (apps) has created a lucrative and competitive environment for app developers. Solely focusing on app functionality and time-to-market is not enough for developers to ensure the success of their app. Quality attributes exhibited by the app must also be a key focus point; not just at the onset of app development, but throughout its lifetime. The impact analysis of bad programming practices, or code smells, in production code has been the focus of numerous studies in software maintenance. Similar to production code, unit tests are also susceptible to bad programming practices which can have a negative impact not only on the quality of the software system but also on maintenance activities. With the present corpus of studies on test smells primarily on traditional applications, there is a need to fill the void in understanding the deviation of testing guidelines in the mobile environment. Furthermore, there is a need to understand the degree to which test smells are prevalent in mobile apps and the impact of such smells on app maintenance. Hence, the purpose of this research is to: (1) extend the existing set of bad test-code practices by introducing new test smells, (2) provide the software engineering community with an open-source test smell detection tool, and (3) perform a large-scale empirical study on test smell occurrence, distribution, and impact on the maintenance of open-source Android apps. Through multiple experiments, our findings indicate that most Android apps lack an automated verification of their testing mechanisms. As for the apps with existing test suites, they exhibit test smells early on in their lifetime with varying degrees of co-occurrences with different smell types. Our exploration of the relationship between test smells and technical debt proves that test smells are a strong measurement of technical debt. Furthermore, we observed positive correlations between specific smell types and highly changed/buggy test files. Hence, this research demonstrates that test smells can be used as indicators for necessary preventive software maintenance for test suites

Mixed Hill Cipher methods with triple pass protocol methods

Hill Cipher is a reimbursement coding system that converts specific textual content codes into numbers and does no longer exchange the location of fixed symbols. The symbol modifications simplest in step with the English letter table inclusive of (26) characters handiest. An encoded Hill Cipher algorithm was used that multiplication the square matrix of the apparent text with a non-public key and then combined it with the Triple Pass Protocol method used to repeat the encryption three times without relying on a personal key. Also, you could decode the code and go back it to the express textual content. The cause of mixing algorithms is to cozy the message without any key change among the sender and the recipient

Development of a novel bioactive glass propelled via air-abrasion to remove orthodontic bonding materials and promote remineralisation of white spot lesions

PhDEnamel damage and demineralisation are common complications associated with fixed orthodontic appliances. In particular, the clean-up of adhesive remnants after debonding is a recognised cause of enamel damage. Furthermore, fixed attachments offer retentive areas for accumulation of cariogenic bacteria leading to enamel demineralisation and formation of white spot lesions (WSLs). Bioactive glasses may be used to remove adhesives, preserving the integrity of the enamel surface, while also having the potential to induce enamel remineralisation, although their efficacy in both respects has received little attention. A systematic review evaluating the remineralisation potential of bioactive glasses was first undertaken. No prospective clinical studies were identified; however, a range of in vitro studies with heterogeneous designs were identified, largely providing encouraging results. A series of glasses was prepared with molar compositions similar to 45S5 (SylcTM; proprietary bioactive glass) but with constant fluoride, reduced silica and increased sodium and phosphate contents. These glasses were characterised in several tests and the most promising selected. This was designed with hardness lower than that of enamel and higher than orthodontic adhesives. Its effectiveness in terms of removal of composite- and glass ionomer- based orthodontic adhesives was evaluated against SylcTM and a tungsten carbide (TC) bur. This novel glass was subsequently used for remineralisation of artificially-induced orthodontic WSLs on extracted human teeth. The novel glass propelled via the air-abrasion system selectively removed adhesives without inducing tangible physical enamel damage compared to SylcTM and the conventional TC bur. It also remineralised WSLs with surface roughness and intensity of light backscattering similar to sound enamel. In addition, mineral deposits were detected on remineralised enamel surfaces; these acted as a protective layer on the enamel surface and improved its hardness. This layer was rich in calcium, phosphate, and fluoride; 19F MAS-NMR, confirmed the formation of fluorapatite. This is particularly beneficial since fluorapatite is more chemically stable than hydroxyapatite and has more resistance to acid attack. Hence, a promising bioactive glass has been developed.Iraqi Ministry of Higher Education and Scientific Researc

KUALITAS TELUR AYAM RAS YANG DIBERI RANSUM SEMI SELF MIXING DI BUNDA FARM BATU SANGKAR

Produksi telur optimal dan berkualitas dapat diperoleh jika pakan yang diberikan cukup dalam jumlah dan kandungan nutrisinya. Pakan semi self mixingmenyediakan nutrisi yang diduga sama dengan nutrisi pakan komersial. Penelitian ini bertujuan untuk mengetahui kualitas telur ayam ras petelur yang diberi ransum semi self mixing di Bunda farm Batusangkar. Metode yang digunakan pada penelitian ini adalah survei deskriptif dengan 5 area sampel pada flok terpilih, masing-masing area sampel diambil ayam ras petelur sebanyak 68 ekor. Telur ayam yang diteliti diambil sebanyak 3 kali, yakni pada hari ke -1 penelitian, hari ke-15 dan hari ke -30, masing-masing 30% dari Hen Day (HD).Data dianalisis dengan statistik deskriptif yang menampilkan jumlah, rata-rata, standar deviasi dan koefisien keragaman. Hasil penelitianini menunjukan bahwa: a) indeks bentuk telur memiliki kualitas mutu I, b) indeks putih telur memiliki kualitas mutu II, c) indeks kuning telur memiliki kualitas mutu II, d) ketebalan kerabang memiliki kualitas mutu I dan e) Haugh Unit(HU) memiliki kualitas mutu I.Kurang optimalnya kandungan protein dalam pakandiduga mempengaruhi kualitas telur terutama pada putih dan kuning telur. Pakan semi self mixingdapat memenuhi kebutuhan nutrisi ayam ras petelur dan dapat digunakan dalam pemeliharaan ayam ras petelur.Kata Kunci : kualitas telur, ayam ras petelur, semi self mixing, ransu

Revisiting Prostate Cancer in India: A Genomic View

In the recent past, there has been a rise in Prostate Cancer (PCa) in Asia, particularly India.  Although systematic reviews on PCa have dealt on the genetics, genomics and the environmental influence in causal of PCa, no predictive analytics in comparing the PCa from Caucasian, American to Asian population was attempted. In this review article, we have attempted to elaborate this aspect of PCa and deliberated on challenges related to next generation sequencing methods of PCa’s manifestation when compared to the west

Brezin-Gross-Witten model as "pure gauge" limit of Selberg integrals

The AGT relation identifies the Nekrasov functions for various N=2 SUSY gauge theories with the 2d conformal blocks, which possess explicit Dotsenko-Fateev matrix model (beta-ensemble) representations the latter being polylinear combinations of Selberg integrals. The "pure gauge" limit of these matrix models is, however, a non-trivial multiscaling large-N limit, which requires a separate investigation. We show that in this pure gauge limit the Selberg integrals turn into averages in a Brezin-Gross-Witten (BGW) model. Thus, the Nekrasov function for pure SU(2) theory acquires a form very much reminiscent of the AMM decomposition formula for some model X into a pair of the BGW models. At the same time, X, which still has to be found, is the pure gauge limit of the elliptic Selberg integral. Presumably, it is again a BGW model, only in the Dijkgraaf-Vafa double cut phase.Comment: 21 page

Buckwheat: Potential Stress-Tolerant Crop for Mid-Hills of Eastern Himalaya under Changing Climate

Under changing climate, identification and diversification of cropping systems having higher stress resilience and adaptability for fragile mountain ecosystems of Eastern Himalayan Region (EHR) are paramount. Lesser known and underutilized crop like buckwheat (BW) with year-round cultivation potential and having higher stress tolerance to prevailing stresses (low pH, low moisture) could be a crop of choice for abating malnutrition among hill inhabitants. Proper time of sowing of the crop is between mid-September and mid-December seemingly essential for better grain yield to the tune of 15.0–18.0 q ha−1, and the crop is found suitable to be grown all through the year for higher green biomass (12.6–38.4 q ha−1). Enhanced exudation of low-molecular-weight organic acids (LMWOA) like oxalic acid by buckwheat increased the solubilization of fixed forms of free phosphorus (P) to the extent of 35.0 to 50.0 micro gram per plant in ideal acid soil of the region (P) in acid soil. In addition, relatively increased resilience to moisture stress with improved stress physiological attributes adds more potentiality for enhancing cropping intensity of hill slopes of EHR. Few genotypes namely IC377275 (18.97q ha−1), IC26591 (17.1 qt ha−1), IC14890 (16.32q ha−1), and Himapriya (15.27q ha−1) are emerging as high-yielding types for productive cultivation in acid soils. Studies on the combined effects of acid soil and moisture stress would aid in novel crop improvement of buckwheat in EHR