Past Issue

An efficient iterative solver for different incompressible flows

We consider the numerical solvers for discretized partial differential equations arising from different incompressible flows. We used the finite element discretization method to discretize the Navier-Stokes equations. IFISS (Incompressible Flow Iterative Solution Software) is used to obtained the different grids. We used preconditioned Krylov subspace methods to solve the resulting linear systems. Numerical experimental results are performed to compare the preconditioned iterative solvers for different types of the incompressible flows.

Silver ratios, Cardano’s formula, and visual model of the second atomic shell

This work is devoted to geometrical research of the ray trajectories system. We consider trajectories of electrons moving in the second shell of an atom. The proposed model of movement of electrons is based on the geometrical interpretation of the Pauli Exclusion Principle and the geometric interpretation of distribution of electrons in energy levels, shells, and subshells of atoms in Mendeleev’s periodic table. It turned out that the second shell can be described by a cubic equation, Cardano’s formula, and a new system of triangles as well.

Sources apportionment of total suspended particles at a coastal city in france

The elemental composition of TSP collected upon different wind sectors in the highly industrialized harbor of Dunkirk (France) were measured and the data was interpreted using a Non Negative Matrix Factorization (NMF) receptor model. Our objective was to identify the possible sources of TSP and to determine their relative contribution at the sampling site. We decided to carry out a daily sampling campaign at a fixed site and a sufficiently long period, i.e. 3 months, from February to May 2008.

Using internet for market research: A case study of the library network of vietnam National University – Ho Chi Minh City

The paper mentions concepts, common methods of online market research and advantages, disadvantages of each method. The author then suggests some solutions to strengthen the effectiveness of online market research application in the Library network of Vietnam National University – Ho Chi Minh City.  

Creating and usefulness of percutaneous radio frequency ablation data base for hepatocellularcarcinoma

Background/Aims: Clinical engineers operate and manage the radiofrequency ablation (RFA) generator during RFA for hepatocellular carcinoma (HCC) in our hospital. Clinical engineers also carry out data management of patient information. Initially, patient information including the patient status, treatment site, and nodule diameter at the time of treatment has been recording in database by Microsoft Office Excel. However, increased RFA sessions including recurrent HCC patients have a risen complicated problem.

An investigation into the relevance of a mobile medical expert system as a provider of medical advice and diagnosis to patients in Zimbabwe

Zimbabwe’s public health industry continues to be plagued with diminishing national budget allocations, the brain drain of medical professionals and a growing population that depends on this sector that is so under-resourced. This means the industry has to do more with fewer resources which is very arduous and Zimbabwe’s Healthcare system is currently in a crisis.

Comparison of factorial and taguchi designs in poultry science data

This study was aimed to investigate use of Taguchi method in animal researches which is as an alternative to factorial experiments. Modeling real-world phenomena often requires more than one factor to explain changes on response variables. Factorial designs are very powerful statistical tools because they allow a researcher to simultaneously test the effects of multiple factor-level combinations on response. But sometimes factor numbers and their levels used in the factorial experiments as difficult and expensive.

Knowledge, attitude and practice on HIV/AIDS among rickshaw pullers in Chttagong City

HIV/AIDS is a serious public health and alarming burden disease in Bangladesh. The aim of the present study was to identify HIV related knowledge, attitude and practice of rickshaw pullers are utmost needed to know and preventive measures of HIV/AIDS. This descriptive type of cross sectional study was conducted to assess the level of knowledge, attitude and practice of rickshaw pullers on HIV/AIDS in Chittagong city. Regarding knowledge on HIV/AIDS 97% of the respondents were heard regarding HIV/AIDS.

Remembrance capacity in children and adolescents with autism

Objective: Remembrance capacity in children and adolescents ages 5–19 with autism (n = 50) and typically developing controls (n = 36) was assessed using a clinical assessment battery, the Test of Memory and Learning (TOMAL).
Method: Participant groups were statistically comparable in age, nonverbal IQ, handedness, and head circumference, and were administered the TOMAL.