Low-Velocity impact spatters are caused by blood that drops normally or perpendicularly due to gravitational interference and have the largest diameter compared to Medium-Velocity impact spatters. The bloodstains sources are usually open wounds of victims who are sustaining their injuries and surfaces full of blood. Low velocity impact spatters are circular bloodstains with a diameter of not less than 4mm. Increase in distance from the surface, increases the diameter of the blood. However, the increase would remain constant at about 1.2m from the surface. Low-Velocity Impact Spatters were created by drops of blood that travel less than 1.5m/s. Low-Velocity Impact Spatters can be caused by sustaining an injury from blunt objects. Medium-velocity
In order to reconstruct a crime scene, analysis must classify the bloodstain spatter, and there are many way to classify blood stain patterns: bloodstain spatter by velocity and bloodstain through taxonomy. In the classification of the bloodstain spatter by velocity, there are three basic categories of stain groups...
The Reason that people need a tank when they play paintball is because you need a way to force the paintballs out of the gun and this cannot be achieved effectively by just using a spring. What they decided to do was to fuel the paintballs by pushing them with a gas. The way in which they did this was to put the gases, either Oxygen, Carbon Dioxide or Nitrogen under extreme pressure until they turned into a liquid and once they are in a liquid form they can be blown into a tank which probably looks something like this.
There are three main areas of paintball that I will be analyzing. First the way in which a paintball leaves the barrel of a paintball marker. Second the way in which a paintball fly's through the air and lastly how to determine optimum ranges for paintballs.
Egi A, Kawamoto M, Kurita S, Yuge O. Systolic arterial pressure variability reflects circulating blood volume alterations in hemorrhagic shock in rabbits. Shock 2007;28:733-40.
When the eggs are dropped onto the pillow, the eggs will bounce a little and stay whole.
As the purple virus enters in Bob's body by using the knee as an entry way, tiny platelets rush to cover the gash and stop the bleeding. In the wet, warm, red bloodstream, red blood cells and white blood cells flow through it. They travel through the stream with the assistance of the heart.
Deep Vein Thrombosis (DVT), is a blood clot that forms in a deep vein inside the body. DVT can occur when the blood thickens, because the thickening of the blood can cause a clot to form. DVT will generally occur within the lower leg or thigh, as well as other parts of the body. A clot that occurs in a deep vein can possibly break off from the original vein. When it breaks off it can travel throughout the body’s bloodstream. It is called an embolus when the clot breaks off. The clots that broke off throughout the thighs, are more likely to cause Pulmonary Embolism, rather than the other blood clots within the remainder of the body. Pulmonary Embolism is a serious condition which can be caused by blood clots. It can damage your organs, more likely to be the lungs, and cause death of an individual.
When the blood stops being pumped, gravity makes it settle and it changes the color of the skin where it pools, making it purple-red. This is known as livor mortis or hypostasis. [2]
Hemophillia is a rare bleeding disorder in which the blood does not clot normally. Hemophillia is usually inherited and people born with it have little or no clotting factor (a protein needed for normal blood clotting). These proteins work together with platelets to help the blood clot. When blood vessels are injured, clotting factors help platelets stick together to plug cuts and breaks on the vessels. Hemophillia usually occurs in males with about 1 in every 5 000 males being born with the disease each year. A hemophiliac does not bleed more intensely than a person without it but can bleed for a much longer time. In some severe cases, continuous bleeding occurs after minor trauma or can even happen spontaneously.They may also bleed inside their body(internally), especially in the knees, ankles, and elbows. The bleeding can damage organs and tissues and may be life threatening. There are two main types of hemophilia: A and B. People born with type A are missing or have low levels of clotting factor VIII (1 in 5 000 males). People born with type B are missing or have low levels of clotting factor IX (1 in 20 000 males). About 8 out of 10 people who have hemophillia have type A. The greatest concern for both types is deep internal bleeding and bleeding into joints. Hemophilia is a life long disease, but with proper treatment and self-care, most people maintain an active productive lifestyle.
is the reason that the ball does not rebound off the block at the same
The purpose of the projectile lab is to test the validity of the law of conservation of energy. The application of this law to our everyday lives is a surprisingly complicated process. Conservation of energy states that energy cannot be created or destroyed, but that it can be transferred from one form to another. Consider the projectile lab from document A that this essay is based upon. In an ideal experiment, the projectile is isolated from everything except the gravitational field. In this case, the only force acting on the particle is gravity and there are only two forms of energy that are of interest: the energy of the particle due to its motion (defined as kinetic
Blunt force trauma is defined as a traumatic event caused by the introduction of any blunt instrument forcefully, causing injury to the body or head. The Severity of injury is determined by various factors. It may be due to mechanical force such as compression, traction, torsion or shear. Impact of the injury and severity depends on object and movement of victim. Injuries occurred may be internal such as lacerations of internal tissues, organs, fractures of bones or may be external such as abrasion, avulsion, contusion and laceration (Pollak & Saukko, 2009). Severity also depends on anatomical site impacted for ex: Lacerations have irregular margin, hanging causes abrasions, contusions and hyoid bone fractures, Ocular hemorrhages in case of blunt trauma to eyes or Fracture of ribs when hit on chest by a blunt object (Ressel, Hetzel, & Ricci, 2016). Severity is also determined by the duration of time and amount of force applied. Nature of trauma is of importance in forensic medicine. It helps in
In 1784, someone using a flintlock pistol shot Edward Culshaw. In those days, there were no bullets, as we know them. Gunpowder and a ball of lead were put into the gun’s muzzle and packed with paper wadding. A spark made when the gun’s hammer struck some flint at the back end of the barrel ignited the powder. When the constable examined Culshaw’s wound, he found a piece of newspaper used as wadding to pack the powder in the killer’s gun. The prime suspect in the killing was a man named John Toms. When a piece of newspaper found in Toms’ pocket was compared with the piece found in the wound, the pieces fit together like two pieces of a jigsaw puzzle. Based on the evidence, Toms was easily convicted. The Toms case was probably the first in America in which ballistics was used to solve a crime.
are just located at the end of the slide. A specimen showing low a low platelet count
When it comes to cars, there are plenty of safety features incorporated by manufactures to ensure a smooth and safe ride. Some of these features seat belts, airbags, and antilock brakes. Nowadays, there have been great improvements to technology within cars to aid in the avoidance of collisions altogether. Examples of these technologies include blind spot detection, backup cameras, 360-degree cameras, and autonomous driving. Many of these newer safety features are there to avoid collisions. However, whenever a collision does occur, there is not much there to protect passengers in the rear of the car. Looking into this, there is evidence that shows that rear passengers do obtain injuries in collisions and pose the threat of contributing to others injuries. So, why are rear passenger airbags not standard in your vehicle?