The shape and length of the splatter can also be impacted by the type of surface it lands on. For example, “the texture of the surface that the blood lands on affects the shape of the blood pattern, too”(“Splatter Blood for Blood Spatter Analysis”). The height at which the substance is dropped can also impact the length of the splatter. For example, a drop of blood dropped from 3 feet above the surface will have a smaller length than a drop of blood dropped 10 feet above the surface. So then a scientist can determine the height of
These characteristics can help a crime scene analyst solve a crime (O'Neil). In this log, one will learn about bloodstain pattern analysis and how it is used to help solve crimes. Bloodstain pattern analysis is portrayed throughout movies and television, most famously the television show Dexter. However, there is more to bloodstain pattern analysis than taking pictures and connecting string. There are three main categories of bloodstains: passive, transfer, and projected/impact stains.
The police department narrow down the investigation to four suspects Bob Whitney, Mary Lynn Turner, Joe Rangel and Allen Dann. They all provide a blood sample to the investigation to determine if one of the blood samples belongs to the suspect. A new development happened during our investigation, where information about a missing girl surface name Sarah Hopewell reflecting she could be the victim in the crime. Based on Sarah medical records we determine she was blood type B negative (Rh-), Caucasian and twenty-one years of age when she disappear. The question we are trying to answer during our investiagation “Do the skeletal remains belong to Sarah Hopewell?” “Are any of the suspects the attacker of the victim in the crime?” Ultimately, who does the skeletal remains belong
Propanol on the other hand was able damage the membrane with a concentration of 20% up, which caused at least 3 times the absorption rate.This is due to the spill of the pigment from the damaged membrane that was released into the solution. Showing a major effect and difference in results of absorption as the Propanol was able to damage the membrane enough for pigmentation to
The portal venous pressure is around 3-7 mmHg which is dependent on various criteria like “posture, increased intra-abdominal pressure like in coughing, compression , respiration, Valsalva’s manoeuvre and a number of biochemical mediators”1. Whereas the blood flow in the portal system is around 1000–1200ml/min and it contributes to around 72% of total supply of oxygen to the liver. The content of oxygen in the portal venous system is lower than the arterial blood, but it is at the same time significantly higher compared to that of the rest of venous system. There is never a consistent pattern of the hepatic distribution of portal blood. PORTAL HYPERTENSION - DEFINITION An elevated pressure of more than 12 mmHg in the portal venous circulation with the portal vein diameter of more than 13 mm or an increased gradient of more than 7mmHg in the portal system (difference between pressure in the portal vein and to that of the pressure in the inferior vena cava) is termed as portal hypertension(PHT).
Alcohol contributes significantly to the morbidity and mortality of trauma patients, despite the consequences of the type of injury suffered.4 Alcohol is the most abused drug in the world. Any drink containing from 0.5 to 95% alcohol is considered an alcoholic beverage.5 When the drinking begins, it has a invigorating effect leading to loss of inhibition and increased sociability. With higher levels, it causes an increase in reaction time and decreases the reflex response and can lead to aggressive states, frustration and depression.6 When blood alcohol concentration reaches more than 30 mg% there is loss of driving ability and when it reaches around 150 to 300 mg % the person is prone for vomiting and stupor.7 In our victim the blood alcohol
Increased risk of heart disease, nerve damage, liver disease and even sexual performance issues. These issues are compounded with the amount of alcohol consumed and also the frequency of consumption. France and Italy both have a lower minimum drinking age than the U.S. and both have a higher death rate due to cirrhosis of the liver, which is primarily caused by alcohol consumption. The earlier an individual starts drinking will only further contribute to medical problems down the road. Although the science is constantly developed, and studies are still being conducted, one thing consistently being shown is the increased medical risk for
High profile cases would be cases like serial killers, terrorism, arson, and kidnaping. They use profiling which is using behavior characteristics like how they kill and who they kill. The profiling helps them narrow down who they could be looking for. The BAU is separated into units. There are four units they all handle different types of crimes.
And because of that there is a higher chance of getting hepatitis or HIV. Having high cholesterol can cause heart attacks, strokes, and angina. It can also cause circulation problems. And having high cholesterol is almost unnoticeable, like it kills you but you wouldn’t know. This whole article mainly talks about how both steroids and cholesterol are bad and good things.
We decided to test the volume of the starch after a 24 hour period. We decided to test the initial vs. final volume of starch because if theory one was correct then the red blood cell would appear bigger, but the volume of the starch would not rise. If theorem two was correct then the water would go into the red blood cells anthe the cells would be prodigious compared to the original size and the volume of the starch would rise. If theorem one was correct then the red blood cell would just appear herculean, but not be growing in volume. Overnight the starch volume increased by a little less than 1 ml proving our hypothesis that water molecules move into the cell because of the concentration of the water is greater outside the cell than it is inside the
The amount of force applied to a source of blood and the size of the resulting spatter vary considerably with gunshot, beating and stabbing events. The size range of spatter produced by any one mechanism may also vary considerably. Impact spatter that is associated with gunshot may produce minute spatters of blood less than 0.1 mm in diameter that are often referred to by analysts as most like dispersions. This mist-like
Explain why this increased venous pressure causes net filtration to increase in the hepatic capillaries, leading to ascites (swollen and fluid-filled interstitial space of the abdomen). • In alcoholic cirrhosis, the portal vein becomes scarred and blocked, causing an increase in hydrostatic pressure. Which leads to an increase in hydrostatic pressure in the capillaries. Alcoholic cirrhosis also causes the liver to under produce albumin. This lowers osmotic pressure in the vasculature, enhancing filtration out of the
Blood contains both slid and liquid form in our body and becomes a jelly like substance once it exits the body. A blood spatter deeply understands the proportion of blood and its various types. An analyst can describe how the blood came out of the body depending on the type of injury which took place. Blood can be looked like a flow, drip, spray, spurt or a gush (http://www.forensicsciencesimplified.org/blood/principles.html). Blood describes its velocity by its stains.
The forensic scientists would apply the principle of blood spatter analysis. Blood spatter analysis is the interpretation of bloodstains at a crime scene in order to recreate the actions that caused the bloodshed. By using the analysis they observe the spatter of the blood, the investigators and forensic scientists can determine how the victim was wounded, what weapons were used and where the object hit the body. Evidence is really important because it can be either stopping the criminal or letting him