Medical Articles

Is It Possible to Breed Humans and Chimpanzees Together?

If we used human sperm, and chimpanzee eggs could we merge the two together and get an offspring which would actually live? After all, the DNA is 98.7% similar, so theoretically it should be totally possible. Perhaps, the offspring would not be able to have a viable offspring, or maybe it would. We don't know that, but I ask, should we find out - could we do this experiment without causing religious fanatics to become one with a state of rage? And even if you can only get a mule, by breeding a donkey and a horse, you are still pretty close to being the same species. Perhaps, this is why I've come to the conclusion that as interesting as humans are, I am just not all that impressed with their sound and fury, or contrived chaos and controversy.

The Hypodermic Tube Beveling Process

All of us has encountered a hypodermic needle at some point in our lives. It may have been in the doctor's office, as a child, getting our vaccinations in time for school, or as an adult, getting a needed shot, like tetanus. The uses for hypodermic needles are varied, ranging from the obvious medical applications, to industrial processes. But, did you ever wonder exactly how they were made? We will explain the entire hypodermic tube beveling process, and how it is used to create these marvelous devices. Step One: Tube drawing The first phase in hypodermic tube beveling is taking stainless steel tubing, and putting it through a process known as tube drawing.

Report Presentation - The Form of the Report

There are various different formats for laboratory reports in use. These vary according to the type of work being reported, the purpose of the work or the report and the recipients for which the report is intended. Reports of original research conducted to further scientific knowledge in a specific area require a different format from reports of quality control experiments conducted in a company laboratory and yet other formats may be required for student reports on experiments. A student may be expected to follow one format for recording experiments in a laboratory record book as they are being performed and a different format when writing up the information from the record book for a formal laboratory report later in the term.

Temperature-Humidity Sensors in Pharmaceutical Testing

Pharmaceutical Products fall under some of the most stringent regulations of any manufactured good out there. Product testing against varying environmental conditions need to be recorded using both accurate temperature-humidity sensors and reliable data logging software. Such process control testing is referred to as stability testing because test materials are analysed for any degradation or significant physical changes throughout various temperature and relative humidity settings. The stability of a pharmaceutical product is a measure of its ability to resist deterioration during the period within which its properties and characteristics can be expected to remain with certain limits.

Graduated Cylinders - It's All About the Accuracy

In a laboratory environment, accuracy is absolutely essential. In order to make sure that things are as accurate as possible, it is vital that the instruments in the lab are extremely accurate. This is why most scientists and lab technicians prefer graduated cylinders. They are, of course, cylindrical objects (sometimes called measuring cylinders), with markings denoting how much of a substance the cylinder is holding. There are other options for measuring in the lab, such as using flasks or beakers. However, because of their design, graduated cylinders are more accurate in terms of measurement. They tend to be tall and thin, rather than the bottle shape of many flasks and beakers.

Find Good Science Fair Projects For Elementary Age School Children

Science fairs are a fun way for children to learn and enjoy the sciences at the same time. Although, when it is time for the fair, parents and students can have a difficult time coming up with a cool idea for a project. Competition can be fierce, but rest assured there are many good science fair projects for elementary age school children. Many parents and students may try to overdo their project. A good rule of thumb is to pick a project that can be done over a relatively short period of time. Judges will tend to disqualify students if they feel the parent helped too much with the project. Therefore, the project should be straightforward and easy enough that elementary school children can do it themselves with minimal involvement from an adult.

An Overview of Ethyl Acetate Petrochemical Solvent

Ethyl Acetate is an organic ester compound with a molecular formula of C4H8O2. It is commonly used as a solvent for cleaning, paint removal and coatings. It is a colourless liquid with a fruity characteristic odour that is commonly recognised in glues and nail polish remover. This product is highly flammable with a flash point of -4 C and a flammability rating of 3. It is highly miscible with all common organic solvents (alcohols, ketones, glycols, esters) but only slightly miscibility in water. Production Ethyl acetate is mainly manufactured via the esterification of ethanol and acetic acid in the presence of a strong acid. In this process, a small amount of sulphuric acid is preheated and fed to an esterifing column to be refluxed.

Promising Outlook For DNA Testing And Treatments As Gene Research Expands

Human Gene research proceeds at a remarkably rapid rate. The vast railroad track of DNA that runs through every chromosome is being explored to pinpoint where every gene resides. Detailed knowledge of respective genes, indicate the functions and it is expected that much heralded research may lead to lead to better tests, improved treatments, and even cure genetic disorders. The results of some scientific studies can lead to complications on some of life crucial decisions. Expectations may be high for those with inherited disorders who may be contemplating the decision to have children with the hope that cures may be imminent.With the Human Genome Project, the monumental task of identifying the 25000 genes in human DNA has been completed, and the sequences of the 3 billion chemical base pairs that make up human DNA has been determined.

UFOs: The Observational Reality Supporting Extraterrestrial Visitations

First I'd better define exactly what I mean by a UFO. To me, a bona-fide UFO is any UFO that remains a UFO after comprehensive investigation and analysis by qualified experts have failed to identify the object as any known natural or man-made phenomena. The tag 'unidentified' means that the conclusion was that it couldn't have even been a possible or probable natural or man-made phenomena, but what exactly it was remains totally 'unidentified' and probably forever unidentifiable. Observational evidence is suggestive that these bona fide UFOs could be extraterrestrial visitations - the extraterrestrial hypothesis (ETH). But wait, I hear screams of protest!

There Are No Dinosaurs In Ireland

With St Patrick's day approaching and with it everything associated with the Emerald Isle being celebrated, our thoughts turn to a geological puzzle that can mystify the uninitiated. The United Kingdom and Ireland are geographically close together, for vertebrate palaeontologists in search of dinosaur fossils southern England can prove to be a rich hunting ground for dinosaur remains. However, Britain's neighbour - Ireland, is virtually devoid of all Dinosauria, there are no dinosaur fossils to all intents and purposes. Ironically, if you are looking for monstrous reptiles, parts of the south coast of England are a good place to look, but on the island which constitutes Ireland and Northern Ireland, it is the very far north of that particular landmass that you must visit if you wish to go hunting for Mesozoic vertebrates.

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