A Modified Differential Transform Method for Solving Nonlinear Systems

Many natural phenomena are now being modelled by fractional calculus, however, there is still need for improvements of the present numerical approaches due to the non-local property of the fractional derivative and difficulty in solving problems related to physical units. In this paper, we present an improved numerical method based on Newton-Raphson fractional method (NFM) for solution of some nonlinear systems in complex space. Unlike in the Newton-Raphson fractional method, the commands of fractional derivatives are replaced with functions which is valid for one and several variables. The conformable fractional derivative of fractional order was employed to replace the first order derivative in the Newton method. Numerical results have been presented which show that the proposed numerical approach is efficient and promising

ON QUASI NEWTON METHOD FOR SOLVING FUZZY NONLINEAR EQUATIONS

This paper presents Quasi Newton’s (QN) approach for solving fuzzy nonlinear equations. The method considers an approximation of the Jacobian matrix which is updated as the iteration progresses. Numerical illustrations are carried, and the results shows that the proposed method is very encouraging

A simulation study of data discovery mechanism for scientific data grid environment

Research in the area of grid computing has given us various ideas and solutions to address the requirements in a modern scientific computing community that managed massive amounts of a very large data collections in a geographically distributed environment. Data Grids mostly deal with large computational problems and provide geographically distributed resources for large-scale data-intensive applications that generate large data sets. A number of research groups are working on the data distribution problems in Data Grids and they are investigating the data replication approaches on the data distribution. This leads to a new problem in discovery and access to data in Data Grid environment. To address this problem we have developed a model to study various discovery mechanisms and investigate these mechanisms for Dynamic Scientific Data Grid Environments using our Grid Simulator. In this paper, we illustrate our model and our Grid Simulator

EXPLORING THE INAR MODEL ON HEAVY TAILED TIME SERIES DATA WITH OUTLIERS

Count data are intrinsically measures of event frequency; it is clear that there is an intrinsic relationship with recurring time to event. Events are typically tallied within time intervals for practical and convenient reasons. The existence of outliers is one issue that prevents count data from being stationary in time series analysis; this has an impact on the effectiveness of fitting several common stationary models to the count data collected over time. Thus, the purpose of this study was to examine how well the Integer Valued Autoregressive (INAR) model performed while modeling count data that included outliers. While this model has been studied for count time series data, it has not been studied for varying degrees of outliers. A monte-carlo simulation was carried out to select the best INAR(p), where p=1,2,3 and 4 on data with 10%, 20% and 30% outliers at different sample sizes. The INAR (4) has the best fit across the sample sizes at the larger percentages of outliers while INAR (3) at the lowest percentage with smallest information criteria of assessment and they are therefore recommended for such modeling.

Musculoskeletal disorders and associated disabilities among bank workers

Background: Musculoskeletal disorders (MSDs) are among the most common health problems encountered in the workplace around the globe leading to disabling conditions there by reducing human performance and subsequently quality of life. The aim of this study was to determine the prevalence of MSDs and associated disabilities and also to identify the risk factors responsible for their occurrence among bank workers in Kancheepuram district, Tamil Nadu, India.  Methods: Annual prevalence of MSD was determined through a cross sectional survey from a sample of 300 bank workers. A pre-validated questionnaire adopted from modified Nordic musculoskeletal questionnaire and 12 Item General Health Questionnaire was used to obtain information about participant’s demographic characteristics, job characteristics, psychosocial stress, musculoskeletal impairments and the resulting disability in different body regions. Data was obtained from the participant’s at their respective working places in Kancheepuram for a period of 1 month.Results: Annual prevalence of 33.8% was observed for the MSD, with a disability rate of 8.5%.The body region mostly affected was the lower back (51.8%) followed by the neck (48.2%), shoulder (40.2%) and upper back (39.6%). In terms of disability, the same pattern was noted with rates for the lower back, neck, shoulder and upper back being 18.9%, 13.4%, 11.6% and 9.1% respectively. The risk factors identified as being responsible for MSD were job tenure, psychosocial stress, and female sex while those responsible for the disabilities were job tenure and psychosocial stress.Conclusion: Low prevalence of MSDs and associated disabilities was observed.

Sejarah Daerah Propinsi Daerah Istimewa Aceh

Sejarah daerah-daerah di Indonesia yang direkonstruksikan dengan pandangan "Indonesia sentris", akan menempatkan banpa Indonesia sebagai dramatic personea dengan peranannya dalam kerangka Indonesia. Hal ini dimaksudkan juga sebagai antithese terhadap sejarah Indonesia yang diwariskan oleh penulis-penulis kolonial yang bersifat "Eropa-sentris" -pada umumnya dan "Neerlandosentris" khususnya. Selanjutnya dari pencatatan ini tentu juga diharapkan akan diperoleh tidak hanya fakta-fakta, tetapi juga pengertian-pengertian serta ciri-ciri pokok dari berbagai peristiwa sejarah yang terjadi pada masa lampau di negara kita yang bersifat Bhinneka Tungal Ika

Sejarah daerah propinsi Daerah Istimewa Aceh

Buku Sejarah Daerah Propinsi Daerah Istimewa Aceh merupakan salah satu hasil pelaksanaan kegiatan penelitian Proyek Penelitian dan Pencatatan Kebudayaan, Daerah Pusat Penelitian Sejarah dan Budaya, Departemen Pendidikan dan Kebudayaan tahun 1977/1978. Proyek tersebut menerbitkannya pada tahun 1979/1980 sebagai cetakan pertama. Buku ini memuat uraian peristiwa-peristiwa yang terjadi di Propinsi :Daerah Istimewa Aceh. Dimulai dari zaman prasejarah yang meliputi asal-usul penghuni yang pertama, teknologi, organisasi masyarakat, kehidupan sosial ekonomi dan sosial budaya serta kepercayaan mereka. Kemudian dilanjutkan ke periode-periode selanjutnya, yaitu zaman kuno. zaman baru, abad ke-19, zaman Kebangkitan Nasional, zaman Pendudukan Jepang, dan zaman Kemerdekaan. Masing-masing periode diuraikan tentang kehidupan pemerintahan dan kenegaraan, penyelenggaraan hidup dalam masyarakat, kehidupan seni budaya, alam pikiran dan kepercayaan serta hubungan luar negeri

Evaluation of performance-based earthquake engineering in Yemen

Building codes follow a common concept in designing buildings to achieve an acceptable seismic performance. The objective underlying the concept is to ensure that the buildings should be able to resist minor earthquake without damage, resist moderate earthquake with some non-structural damage, and resist major earthquakes without collapse, but some structural as well as non-structural damage. This study aims to evaluate the performance-based seismic to come up with necessary recommendations for both future practices, essential review, and restoration of existing structures in Yemen. To do this real case studies incorporated, and nonlinear pushover analysis is carried out. The analysis results presented and then assessed to find out the conformity with the required performance. The structural sections assumed at the beginning of the design, then the design repeated many times to achieve the selected performance criteria (the plastic hinge properties and the maximum displacement)

Effect of Trichoderma reesei degraded date pits on antioxidant enzyme activities and biochemical responses of broiler chickens

The long-term use of antimicrobials as growth promoters in poultry feed leads to antimicrobial resistance in pathogens. Thus, alternatives to antibiotics are essential for reasons associated with both safety and cost-effectiveness. Underutilized plant sources need to be developed to replace antibiotics in broiler feed. Several feed resources have been introduced so far, but they have yet to be applied widely. Date pits are a major by-product of the date industry (6–8%) and have the potential antioxidant to replace antibiotics. In this study, fresh date pits were degraded using the mold Trichoderma reesei under solid-state degradation (SSD), resulting in degraded date pits (DDP). A total of 180 Brazilian “Cobb 500” broiler chicks were divided into six feed treatments in triplicate groups. The treatments were corn-soy basal diet (positive control; C+), corn-soy + 20% oxytetracycline at 0.05% (negative control; C–), corn-soy + 10% DDP, corn-soy + 0.2% mannan-oligosaccharides (MOS), corn-soy + 0.1% mannose, and corn-soy + 0.2% mannose. The antioxidant and biochemical effects of DDP, MOS, and mannose were determined in the blood serum, liver, and intestine of broilers at age 21 and 42 days. The results indicated that the contents of antioxidants such as flavonoids and phenolics, as well as the MOS content in DDP, were increased by the degradation process. Additionally, mannose, glucose, arabinose, rhamnose, and glucuronic acid were significantly increased in DDP after degradation. The activity of antioxidant enzymes (GPx—glutathione peroxidase, catalase, and SOD—superoxide dismutase) in the serum, liver, and intestine of broilers fed with diets containing 10% DDP and 0.2% MOS was increased significantly compared to the control group. Malondialdehyde activity was decreased, whereas the mean corpuscular hemoglobin level and the iron content were significantly upregulated in the broilers fed with 10% DDP, 0.1% mannose, and 0.2% MOS diets compared with the control. Thus, DDP can be used to improve the antioxidant status and has a prebiotic-like effect in broiler chicken performance

Intestinal development and histomorphometry of broiler chickens fed Trichoderma reesei degraded date seed diets

A study was conducted to investigate the impact of degraded date pits (DDP) on the development and morphology of the intestine in broilers. Trichoderma reesei was used to produce the DDP using a solid-state degradation method. One hundred and eighty broilers were divided into six treatments in triplicate groups of 10 chicks each. The dietary treatments were: positive control with corn-soy basal diet, negative control with corn-soy basal diet + 20% oxytetracycline at 0.05%, corn-soy basal diet + 10% DDP, corn-soy basal diet + 0.2% mannan-oligosaccharides (MOS), corn-soy basal diet + 0.2% mannose and corn-soy basal diet + 0.1% mannose for 6 weeks. The results indicate that a 10% DDP diet increased the activities of the pancreatic enzymes, the villus length, and the villus/crypt ratio, and decreased the crypt depth of the intestine. In conclusion, when compared to oxytetracycline and MOS, DDP can be used as a replacement for antibiotic growth promoters for broilers while improving gut development and intestinal health