Diatom And Their Forensic Significance

Forensic dactyloscopy is the study of fingerprints. Visible prints may be left behind by substances that stick to the fingers such as dirt or blood. Latent fingerprints are traces of sweat, oil or other natural secretions on the skin and are not ordinarily visible. These can be made visible by dusting techniques when the surface is hard and by chemical techniques when the surface is porous. Fingerprints provide police with extremely strong physical evidence tying suspects to evidence or crime scenes. Today police in most countries use systems for matching prints found at crime scenes to suspects, called automated fingerprint identification systems (AFIS), to search rapidly through millions of digitised fingerprint records. Fingerprints recognised

The College of Arts and Science and Vanderbilt University offers a wide range of majors and minors that allow a student to explore multiple areas of study to determine what their true passion is. At Vanderbilt, I hope to take advantage of these different content areas to mold myself into a well-rounded student and individual.

The lab analysts must take extensive precautions in preventing any type of contamination because samples are limited and repeating tests is costly. At this time, the medical examiner and crime scene team are put under high pressure and must be diligent and focused when in the laboratory (Dale and Becker 139) (Roberts 48). Since errors happen because of humans and not the machines (Bertino 143). To prevent lab error, detailed guidelines for Quality Control and Quality Assurance are updated regularly (National Research Council 37). In many cases, there is an abundance of evidence that is collected and requires examination. To process all the evidence in a timely manner the forensic scientists are specialized and only process one piece in the

Even though a few species can collaborate into colonies most golden algae are unicellular. They can be located in either freshwater or in a marine environment. Seaweed, or brown algae, is a marine algae that has multiple life cycles. In some of the species, the life cycle the gametophyte and sporophyte are multicellular. Oomycetes are water molds with no close relations to fungi even though its name means egg fungus. Oomycetes have cell walls that are cellulose based and have filaments that assist with food. For movement, they have hairy and smooth

Bio and Forensic Anthropologist study Skelton remains. Both can identify what time period and the different cultures people came from. In short, Bio-archaeology is the study of human skeletal remains from archaeological sites. Archaeologists are able to reconstruct and study the past remains of human skeletons: disease, health patterns, and much more. On the other hand, Forensic anthropologist help investigators solve crimes and they use the science behind their methods to supports anthropology. When a crime been committed against another person. Forensic Anthropologist is there to assist crime investigators with the investigation. Forensic Anthropologist can determine the person height, age, and sex of the victim. Forensic Anthologist can

The article – Priority effects in a planktonic bloom-forming marine diatom – generally surrounds the concept of priority effects, which is the impactful advantage that an earlier arriving species has over a later arriving species (Sefbom, Sassenhagen, Rengefors, & Godhe, 2015). In particular, this research examines the priority effects of a centric marine diatom called Skeletonema marinoi. Although numerous studies have discussed priority effects through the context of interactions between different species (interspecific) and their development in nature, this research scrutinizes the beneficial effects of the early arrival within the same species (intraspecific), a perspective that has limited investigations (Sefbom et al., 2015). Previous

Forensic entomology is the study of insects for medico-legal purposes. There are many ways insects can be used to help solve a crime, but the primary purpose of forensic entomology is estimating time since death.Once a person dies his or her body starts to decompose. The decomposition of a dead body starts with the action of microorganisms such as fungi and bacteria, followed by the action of a series of insects (arthropods).

The observed protist had long, unbranched filaments with cells connecting to each other from end to end. This alga seemed to contain a central constriction in between each cell. The protist had a considerable length and appeared to bear a slight bend in its structure. The alga seemed to be around other protists of the same species in large

Forensic science is the past, present and future of justice systems around the world. It has made the jobs of those in the justice system less challenging and made the lives of criminals less bearable. One of the many disciplines of forensic science is forensic entomology which is the study and use of arthropods to help in legal investigations. Forensic entomology has been around since the medieval times and it has grown from then to sub disciplines of forensic entomology with the medicolegal sub discipline being the most employed in criminal cases. The science behind forensic entomology is the integration of other areas of science, which are the decomposition timeline of bodies, the life cycle of insects and the types of insects that will invade that body and the knowledge of how to collect and rear them will help estimate the time between death and discovery, called the Post Mortem Interval, and with the help of other disciplinarians of forensic science, all the information gathered could be used by an expert witness to testify in a trial and help to reach a verdict.

The size can range from .2µm, which are called picoplankton, all the way up to megaplankton at over 2,000µm, with different naming based on ever increasing size ranges.[f] The habitat has 4 main categories with 2 being where they live, and the other 2 being how long the organisms are plankton. These include pleuston

Phytoplankton are microscopic plants and bacteria. They have no roots, stems, or leaves like land plants but they need light to grow. Because of that they are usually found on shallow surface waters. They are usually anywhere between 0.001 mm to 1 cm. It is estimated that phytoplankton produces between 50% to 90% of the world’s oxygen.

What is a Dictyostelium discoideum? D. discoideum commonly referred to, as slime mold is a species of amoebas that are soil living; they belong to the phylum Mycetozoa. “D. discoideum is a eukaryote that transitions from a collection of unicellular amoebae into a multicellular slug and then into a fruiting body within its one lifetime. “ The unicellular phase consists of solitary amoeba feeding on bacteria and reproducing by binary fission. When faced with starvation, the amoeba collects into aggregates and develops into multicellular fruiting bodies. This particular multicellular organism is only multicellular under the certain environmental conditions that demand of it.

Forensic science has been around since the 1700’s and has taken leaps in getting better and continues to improve. ATF (The Bureau of Alcohol, Tobacco, Firearms, and Explosives) was founded July 1, 1972 and manages NIBIN (National Integrated Ballistic Information Network), and the FBI (Federal Bureau of Investigation) was founded July 26, 1908 and manages CODIS (Combined DNA Index System) and IAFIS (Integrated Automated Fingerprint Identification System). All three of these databases come together and make catching criminals an easier task.

Within the intertidal zone, food sources and abundance of nutrients are important biotic factors that shape and controls community dynamics. Algae is an aquatic organism that is the general name for a variety of plant like organisms ranging from single-celled phytoplankton (microalgae) floating in the water column to large seaweed (macroalgae) attached to the ocean bottom. Intertidal

Although having a plant like appearance, corals are marine invertebrates in the class Anthozoa of the phylum Cnidaria. There are