An article about phloem tissue in plants, covering its role and what cells form the tissue. It also covers how the different cells work together to achieve one fuction.This is a short revision bite suitable for students of High School/Senior School level. If you have any questions please feel free to message me.

A revision bite about xylem, and their function in plants. This article covers their function, how they are made, what different cells are present in xylem tissue and what their individual function is. This article was written to be a short revision bite suitable for students or High School/Senior School Level.

An article covering the basics of the vascular tissues involved in transport in plants, but in a high level of detail. This article is designed to be a brief revision bite for any biology student of high school/senior school standard. This article covers the location and basic function of xylem and phloem tissues in the average plant.

In northern California oak woodlands cover nearly 4.5 million acres of typically rolling terrain that is bounded by valley grassland, chaparall, and montane forest (Holmes, 1990). Oaks are mostly found at high elevations under cool or temperate climate. The oak communities in California include blue oak (Quercus douglasii), blue oak-foothill pine (Pinus sabiniana), coast live oak (Quercus agrifolia), and valley oak (Quercus lobata) (Purcell, 2006). Throughout their evolution oak trees acquir...

Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. Earth's geothermal energy originates from the original formation of the planet (20%) and from radioactive decay of minerals (80%). Though this energy is promising, there are still disadvantages from it use for electrical generation.

A Geiger Counter is a device that is used to detect radiation. The device needs careful handling as it is a sensitive instrument. In addition anybody dealing with radiation must take precautions so that he or she does not come in contact with radiation or its source. The basic aim of the Geiger Counter is detect radiation by the ionizing effects radiation creates.

This article is written in response to a question asked on Knoji about how ancient people's knew about astrology without the aid of a telescope. Basically the ancient peoples relied on the naked eye and their observations of the heavens. The ancient Polynesians had memorized the positioning of over 100 stars to navigate their ocean voyages. The Egyptians used the sun and constellations to build the great pyramids.

This article describes an experimental type of treatment for HIV that is still in the testing stage. This article describes what the disease HIV is and how it affects a person's life. It then goes on to talk about the current treatment, possible future options based on scientific research and how this new treatment is different from current options.

Do you remember going to the zoo when you were younger and being so mesmerized by white tigers? They may have stood out to you because they seemed so different than the regular orange colored tiger. Maybe you didn’t see them at the zoo at all because they weren’t as common before. White tigers are actually regular Bengal tigers that express a recessive mutant gene that gives them their rare color.

Knowing how to divide fractions can be helpful when going to be working with them directly. It is not too difficult in terms of understanding how it works but can be challenging if not patient enough. There isn’t much in the way of requirements and some tips. Doing it with smaller numbers will make the transition to larger numbers much easier because of having the basics down to a science.

Also known as Atterberg limits, is simply the sticking nature of soil material. It is usually used to determine the amount of clay in the soil there are mainly two procedures under geotechnical engineering materials for obtaining the atterberg limit namely; casangrande and penetrometer methods The following atterberg test procedure is based on Bs 1377

Soil specific gravity is the ratio of the density of void-less material to the density of distilled water at a certain temperature, say 270c. The specific gravity of soils is a useful data when it comes to the evaluation of volume in the soil. The difference the specific gravity test is usually whether the test is based on the British standards specification or the American standards of specifications or sometimes both. The following procedure is based on the two codes of specifications

Princess Eleonore Elisabeth Amalia Magdalena Von Schwarzenberg was an 18th century princess, who resided in what is now The Czech Republic, in Central Europe. She lived in a large Baroque era castle situated in modern day Prague (Castle Square). Eleonore may have been part of the research subjects Bram Stoker, Irish author, had used when he wrote Dracula's Guest and Bram Stoker's Dracula. Princess Eleonore was a superstitious woman, especially when her husband died in a hunting accident, and ...

Calculation of real eigenvalues of a square matrix is often required in physical problems. In most of the cases it is not possible to find the eigenvalues by hand and we need to use numerical methods. In this article I have discussed one such method with a C program involving finding determinant of a matrix by the method of Gaussian elimination and determining roots of an equation using the method of bisection.

This article is about how immunoglobulin, the B-cell receptor, promotes diversity within itself via the process of somatic recombination. The process of somatic recombination is the rearrangement of genes and is extremely precise and directly functions with the V, D, and J segments of the genes. Without this recombination event, diversity would be extremely limited.