In this tutorial, we learn how to reveal latent fingerprints on paper & other surfaces. The item you will need to do this is crystal iodine and plastic sheeting to protect your work surface. Place your specimen into a plastic container with the iodine, then put the top on and let sit, placing your hand under to warm it up. Within a few minutes you will see a violet color vaporizing in the container. When finished, you will be able to take out your specimen and see the fingerprints that are al...
In this tutorial, we learn how to use ninhydrin to reveal latent prints on paper. This will work out because you will be spraying a special liquid onto the porous area. After this, you will turn on a black light and then be able to see the fingerprints appear in purple! Be careful with the solution, because it's flammable! This will also stain your skin, so make sure you wear gloves and don't let it contact a surface you don't want stained. To mix the solution, you will combine both of the so...
This short video shows us how to reveal latent fingerprints on a glass surface by dusting. Anyone interested in forensic science would enjoy trying it as it shows simple steps in dusting and lifting fingerprints. It does not require any chemicals and we can do it with baby powder. The steps involved are so simple and easy to follow that even kids can try it out for fun. This gives a clear idea about fingerprints on different objects like porous, non porous and metals. Enjoy viewing and detect...
This video would be very interesting for those seeking careers or those interested in the field of criminal science. This field involves forensic science. The video explains to us how to use gentian violet in order reveal latent fingerprints. He explains to us the experiment he is about to do before he does it. Genetian violet is a type of dye solution that can be very helpful in retrieving fingerprints. Safety goggles and gloves should be worn at all times.
Do you need to check a scene for prints, or are maybe just curious about the techniques of forensic science? In this video, Robert Bruce Thompson from the Home Scientist unravels the mysterious of forensic fingerprinting using common materials that you may already have sitting around in your home right now. Explains and demonstrates the process of superglue fuming step-by-step to reveal latent fingerprints. Includes great tips on how to improve and speed up the process using household products.
HIV infections persist despite treatment that successfully decreases viral blood levels to the point where doctors can't detect the virus. But that doesn't mean the person is cured. The virus hides in the body, not replicating, just waiting for a chance to jump out of the shadows and reemerge.
Fluorescein is a commonly used fluorescent dye that is quite hard to come by in a concentrated form. Fortunately, it's used in relatively large quantities in highlighter markers and can be extracted by a fairly simple process. Fluorescein makes spectacular explosions of color as it dissolves into water and can be used for many different purposes that are addressed in the video below.
Tremendous strides have been made in the treatment and outlook for patients infected with HIV, the human immunodeficiency virus. Treatment with a combination of antiretroviral drugs can keep patients with HIV alive for decades, without symptoms of the infection. The trouble is, if HIV-infected people stop taking their medications, the virus takes over in full force again—because the virus hides out quietly in cells of the immune system, kept in check, but not killed by the treatment.
The incidence of tuberculosis (TB) is dropping in the US, but the World Health Organization (WHO) considers it to be epidemic in the rest of the world — there were over 10 million new cases in 2016.
Over 1.2 million people in the US are infected with human immunodeficiency virus (HIV)—and one out of eight of them don't know it. Even after decades of intense research into the virus, there's still no cure for it. One of the big problems is that the virus hides out in certain cells of the body, resisting treatments that kill it.
Being infected with HIV means a lifetime of antiviral therapy. We can control the infection with those drugs, but we haven't been able to cure people by ridding the body completely of the virus. But thanks to a new study published in Molecular Therapy by scientists at the Lewis Katz School of Medicine (LKSOM) at Temple University and the University of Pittsburgh, all that may change.
Learn how to find latent finger prints on brass surfaces, such as fired cartridge cases. Called the Acidified Peroxide method, using only white distilled vinegar and hydrogen peroxide that you can find at your local drugstore, you can uncover fingerprints that is usually impossible to see using other methods. After mixing the vinegar and hydrogen peroxide the solution should start turning a greenish color around the brass object after 5 to 10 minutes. After you see the green color throw away ...
HIV-infected people who are treated long-term with antiviral drugs may have no detectable virus in their body, but scientists know there are pools of the virus hiding there, awaiting the chance to emerge and wreak havoc again. Since scientists discovered these latent pools, they have been trying to figure out if the remaining HIV is the cause of or caused by increased activation of the immune system.
Natural remedies used through the ages abound, especially in Asian medicine. The willow-leaved justicia plant, found throughout Southeast Asia, has traditionally been used to treat arthritis, but scientists have just discovered it contains an anti-HIVcompound more potent than AZT. AZT was the first drug approved to treat HIV, and is still used in HIV combination therapy today.
Most of us have already had an encounter with the Epstein-Barr virus, or EBV, for short. As part of the herpes family, it's one of the most common disease-causing viruses in humans. We get the disease with (or without) some nasty symptoms, then we recover. However, EBV stays in our body after the illness has ended, and it's one of the few viruses known to cause cancer.
As Alfred monologued in The Dark Knight, "Some men aren't looking for anything logical, like money. They can't be bought, bullied, reasoned, or negotiated with. Some men just want to watch the world burn."
Crusty, itchy, red eyes? There is a decent chance you could have conjunctivitis, or pink eye, an infection of the thin lining around the eye and the eyelid, caused by bacteria, an allergen, virus, or even your contact lenses. Whatever the cause — you call up your doctor to get a prescription to clear it up, right? Not really.
Most females have had at least one urinary tract infection in their lifetimes. Recurrent UTIs are particularly problematic in young, sexually active women, where about 80% of the infections are caused by the bacteria Escherichia coli, better known as E. coli.
Maternal infection with genital herpes, or other pathogens, during early pregnancy could increase risk of autism, or other neurodevelopmental disorders, says a new study.
Transmitted by a sandfly one-third the size of a mosquito, parasitic Leishmania protozoa are responsible for a flesh-destroying disease that kills an estimated 20,000 people per year. Two new studies offer understanding of how the parasite provides immunity through persistence and why some people suffer more virulent forms of the disease.
Welcome back, my novice hackers! You have probably heard of the Panama Papers hack by now. This was a hack of the servers at Mossack Fonseca, a major law firm in Panama. This law firm specializes in assisting the rich and powerful to hide their wealth from taxes and scrutiny by creating tax havens overseas.
In one of my previous articles, I showed off how to make water freeze into ice instantaneously. In this article, I'd like to elaborate on this, and show how a glass of water can turn to ice instantly on command. What exactly is this supernatural power? Discover the secrets to ice-bending—in real life.
The Minecraft 1.8 pre-release is out, and it's now possible to play Minecraft 1.8 beta on a Mac computer. Unfortunately, the installation process isn't very simple, so if you want to learn how to download and install the pre-release of 1.8 on your Mac, take a look at this tutorial.
Notch posted the pre-release of Minecraft 1.8 before it got an official release. If you want to install Minecraft 1.8, take a look at this tutorial for instructions on adding the update to your Minecraft folder in Windows on your PC. You can download the pre-release on the Minecraft forums in this post.
Stress, migraines, headaches, sounds like life to me. When life gets too fast and stressful for us, you may think that you do not have the time, or the money, to get a professional massage, or take care of ourselves. But it's easier than you think, with these amazingly relaxing videos you will learn various holistic solutions to some of the most common problems such as stress, migraines, and headaches through self-massage and tense release techniques.
Quick releases are one of the most convenient features that you can have on your bike, allowing you to change out your wheels quickly and easily without any additional tools. This video will show you how to use the quick releases on your bike to replace a flat or otherwise damaged tire on the fly, helping you get back to riding without getting your hands dirty.
Learn how to tie a release-hitch knot! The release hitch knot was developed to overcome the shortcomings of the Prusik knot, making it perfect for rock and mountain climbers. For an easy-to-follow, step-by-step overview of how to tie this useful climber's knot in a minute's time or less, watch this free video knot tyer's guide.
This is a presentation from WatchMojo detailing the operation of a manual/standard automobile. Explanation includes the placement of pedals listed from left to right as the clutch, the brake, and the gas. There is also an explanation on the gearshift which includes a diagram of where gears are located. Explanation for the beginning of driving includes instructions as follows; ensuring that the ground is flat, the application of the parking brake, the process of depressing the clutch, placing ...
The Minecraft 1.9 pre-release is out, and Jeb has recently tweeted a link to version 2 of the 1.9 pre-release. If you're interested in downloading and installing it, take a look at this guide to learn how to update your Minecraft to the 1.9 pre-release.
Catch fish out of a hole in the ice with these basic techniques. Learn insider tips for setting up your line, land fish and returning them to the water in this ice fishing lesson from an experienced fisherman.
If you want to play the Minecraft 1.8 pre-release you can try it out on a test server. This guide shows you how to download and install the Minecraft 1.8 pre-release and try out the beta on a server before the official release comes out. It also details how to uninstall Minecraft 1.8 so that you can play Minecraft 1.7.3 instead if you have problems starting or playing the newer version.
In my last quick clip, I demonstrated how to take a bottle of soda and freeze it on command. I received many requests for a more detailed article on this, so here we go. This "super cool" trick works with cans of soda too, not just bottles!
If you're interested in running the Minecraft 1.9 pre-release on your server and giving it a spin (or letting others with the Minecraft 1.9 pre-release client give it a spin), take a look at this guide to setting up and installing the server. This guide will also help people who are getting stuck on the loading screen in the 1.9 prerelease as well.
Looking for a bunch of mods to pump up your new installation of the Minecraft 1.8 pre-release? Try the Zombe modpack featuring awesome mods such as:
In this tutorial, we learn how to release point in basketball with Tom. If you hesitate or hang, you will lose power in your legs and your ball will go short and flat. When you reach the top of your jump you will want to release your ball to get the most height out of it. When shooting the jump shot, pay attention to what it feels like when you are going to shoot. You want to feel powered up not effortless or underpowered when you are shooting. Time your release and make sure you have a high ...
In this tutorial, learn how to get your dog up and moving with the release command. Whether you need your pup to get off of the sofa, or just want them to walk out of a command like "sit" or "stay", check out this video.
There are a couple of limitations that Microsoft put in to Windows 7 upgrades that can prevent users from upgrading and ultimately force them to do a clean install. First limitation is that they won't let you to upgrade Windows 7 if you run Windows 7 release candidate that was released earlier this year, which they won't let you to upgrade to a download Windows edition. If you are running Windows vista ultimate you cannot upgrade windows 7 professional. We have to buy an ultimate edition then...
Check out this guide to installing the Minecraft 1.9 prerelease update to your Minecraft folder. After replacing your Minecraft.jar file with the new one that you'll download from the link below, you'll be able to play with the snow golems and try the Minecraft 1.9 pre-release for yourself!
The Windsor knot, also (wrongly) known as the "Double-Windsor" (a non-existent enormous 16-move knot), is the most well known knot in the world. The Windsor is a large, symmetrical, self-releasing triangular knot. The tie was named by Americans in the 1920-30's after the Duke of Windsor. The Duke was known for his fondness of large triangular tie knots, but didn't in fact invent this particular knot. His secret was a specially tailored tie with an extra thickness of material.
How can a drug used to treat cancer be effective against viruses, too? The answer lies in the drug's shared target — specifically, cellular components that control the activity of genes. A new research study showed that one such type of drug, histone methyltransferase inhibitors used in cancer clinical trials, has activity against herpes simplex virus, too.
