621 research outputs found
Making Black Bloody Rosella Jam
The rosella (or roselle) plant originated in West Africa, but has been cultivated throughout Africa, Asia and Australia. Not only can rosella be used to make teas and jams, but every part of the plant is edible; the young leaves can be eaten raw and make great salads. Rosella is a type of hibiscus, and it has a beautiful pink flower. Although the whole plant is edible, it is the calyx (the bright red fruit) that is used to make syrups, teas or jams. If you eat it fresh, straight off the stalk, it has a sour taste. Inside the calyx is a round seed pod. If it is left to mature, it will turn brown. When dry it provides the mature seeds for the next planting. At Kebun Setaman Pejeng, our small-scale community arm and learning centre at Bamjar Panglan, Pejeng, on the island of Bali, we harvest rosella to make jam
STUDENTS DATA CLASSIFICATION MODEL
In this project, research is conducted based on data sets of undergraduates at varsity level
to classify student performance data. The objective of the project is to develop a system
that utilizes various intelligent techniques with targeted accuracy being at a minimal level
of88%.
The system is designed to predict students' CGPA upon graduation. Any further actions
that can be taken to avoid students' dismissals, or to strengthen their area of interest or
expertise can be derived from the outcome of this intelligent system.
The project is implemented using data sets Iris and Student. Techniques used to support
classification are separated into two different subprojects: (1) Back propagation feed
forward neural network using Bayes probability to initialize weights, and (2) Fuzzy
system. The proposed optimization of neural network and Bayes Theorem returns
92.55% level of accuracy for the student data. Further improvements can be performed
on areas such as the individual variations of each technique and the combination of all
three techniques to optimize accuracy.
The project contributes in customizing a grading system for Universiti Teknologi
PETRONAS. This system structure is generally relevant to many universities in Malaysia
as they adopt a fairly similar approach in gradin
Protein and synthetic polymer injection for induction of obstructive hydrocephalus in rats
<p>Abstract</p> <p>Background</p> <p>The objective of this study was to develop a simple and inexpensive animal model of induced obstructive hydrocephalus with minimal tissue inflammation, as an alternative to kaolin injection.</p> <p>Materials</p> <p>Two-hundred and two male Sprague-Dawley rats aged 3 weeks received intracisternal injections of kaolin (25% suspension), Matrigel, type 1 collagen from rat tail, fibrin glue (Tisseel), n-butyl-cyanoacrylate (NBCA), or ethylene vinyl alcohol copolymer (Onyx-18 and Onyx-34). Magnetic resonance imaging was used to assess ventricle size. Animals were euthanized at 2, 5, 10 and 14 days post-injection for histological analysis.</p> <p>Results</p> <p>Kaolin was associated with 10% mortality and successful induction of hydrocephalus in 97% of survivors (ventricle area proportion 0.168 ± 0.018). Rapidly hardening agents (fibrin glue, NBCA, vinyl polymer) had high mortality rates and low success rates in survivors. Only Matrigel had relatively low mortality (17%) and moderate success rate (20%). An inflammatory response with macrophages and some lymphocytes was associated with kaolin. There was negligible inflammation associated with Matrigel. A severe inflammatory response with giant cell formation was associated with ethylene vinyl alcohol copolymer.</p> <p>Conclusion</p> <p>Kaolin predictably produces moderate to severe hydrocephalus with a mild chronic inflammatory reaction and fibrosis of the leptomeninges. Other synthetic polymers and biopolymers tested are unreliable and cause different types of inflammation.</p
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