Blood residue

use of crop residue urea feeding technology. The findings also revealed that majority (40 – 50 years) of cattle farmers are in their middle ages which implies that age was an important variable as it reflects the physical strength for work. Also, in the study area, the average proportion (51%) of the respondents had adult literacy education. More so, their level of education determined the broad mindedness which was an important factor in adopting technology by farmers. Furthermore,…

INTRODUCTION: The dictionary definition of blood, according to Webster’s Universal Medical Dictionary (2007), is “a suspension of red blood cells (erythrocytes), white blood cells (leucocytes) and platelets in a liquid medium, blood plasma”. When catching a criminal, there are many factors that need to be taken into account, such as: how the crime was committed; whereabouts it was committed; when it took place; who did it, etc. Blood plays a major role in these decisions and findings. If…

Blood spatter analysis is the examination of shapes, locations, and distribution of blood spatter in order to interpret and develop a storyline leading to what exactly caused the blood shed. Blood spatter analysis is often used as a criminal investigative tool used by criminal investigators, such as the police and the government. Blood spatter was discovered and used in the late 1890s, however it was not known as a highly valuable forensic tool until the late 20th century. The topic of blood…

Bloodstain Pattern Analysis also known as BPA is defined as the diameter and shape of blood splatters, which reflects the origin and trajectory of external blood flow in the context of homicide or violent death, in which the skin surface is disrupted (Medical dictionary https://medical-dictionary.thefreedictionary.com/Bloodstain+Pattern ). The development of bloodstain pattern analysis dates back to nearly 150 years ago in history and through the years there have been many studies, developments,…

The NaCl was able to pass through the rest of the membranes with the same filter concentration (4.81). The Urea & Glucose were unable to pass through the 50 MWCO filter, but was able to pass thru the 200 MWCO at both pressure differences. The powered charcoal was unable to pass through any of the filters even when the pressure was doubled. The residue analysis indicated all solutes present in the dialysis…

Melittin is the active component of bee venom and when injected releases histamine from mast cells and ruptures red blood cell corpuscles. This interaction is responsible for the initial pain and swelling that is associated with a bee sting. (Collison, 41) However, the properties that make melittin toxic can also be harnessed for therapeutic purposes. Melittin is a small protein containing 26 amino acids that comprises 50% of bee venom’s dry weight. (Collison, 40) It exists primarily in two…

Research Luminol is a chemi-luminescent compound that has the unique property of emitting light when it reacts with certain chemicals. This chemical is extremely useful in crime scenes, for luminol is greatly used by crime scene investigators to discover spots of blood even if evidence has been removed by the criminal. Iron, found in the hemoglobin of red blood cells, acts as a catalyst in this chemiluminescent reaction, making luminol highly sensitive to bloodstains/residues, and even to old…

In 1928, German chemist H.O. Albrecht accidentally discovered Luminol. The first time Luminol was used in a crime scene was in Germany in 1937. Luminol is highly sensitive to bloodstains or residues, even to old stains, in walls, carpets, upholstery, wooden floors, or painted surfaces. When forensic/crime scene investigators spray Luminol solution on a surface, it reacts with metal ions like iron, which are stored and transported by red blood cells. Very discrete iron concentrations on a…

can detect where the blood is by glowing. Besides being useful in locating minute amounts of blood, the luminescent pattern observed on surfaces could indicate such things as; the route of exit from the crime scene, drag marks in blood, or an attempt to clean up blood. To perform a luminol criminalists simply spray the mixture wherever they think blood might be. If hemoglobin and the luminol mixture come in contact, the iron in the hemoglobin accelerates a reaction between the hydrogen peroxide…

The white pulp in the spleen helps to combat infection and produce antibodies, the red pulp helps to filter the blood. This links with the cardiovascular system in that in order for the cardiovascular system to work effectively it must have a healthy system of red blood cells, if the red blood cells are tired out the cardiovascular will thus not work effectively. The spleen also holds a reservoir of blood in case of hemorrhagic shock in the body, which can be released if…