Csi training : Toolmarks and
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This document provides information about firearms and toolmarks analysis in crime scene investigations. It describes key parts of guns like the barrel, cartridge case, slide, and firing pin. It explains how guns work and the components of cartridges, including the primer, smokeless gunpowder, and projectile. It also details characteristics of bullets like rifling impressions, striations, caliber and rifling number that can be analyzed to determine if a specific gun was involved. Firearms examiners analyze both class characteristics common to a brand and individual characteristics unique to a single firearm.
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This document provides an overview of firearms examination, including different types of firearms like handguns, revolvers, semi-automatics, rifles, and shotguns. It describes how firearms work and how examiners can identify unique markings on bullets and casings to match them to a specific gun. It also discusses other forensic techniques like analyzing gunshot residue and toolmarks, as well as impressions left by shoes and tires.
Bullet and toolmark analysis
Firearms identification is a forensic discipline concerned with determining if a bullet was fired from a particular weapon. While class characteristics like groove patterns and caliber can provide some information, they are not enough for a positive identification. Examiners use comparison microscopes to analyze striation marks left on bullets and cartridge casings by the firearm's barrel and firing mechanism. This allows for positive identifications of bullets and casings to the weapons that fired them. However, shotguns present unique challenges due to the spread of pellets or slugs. Firearms examiners also perform other analyses like distance determination and reconstruction of shooting incidents. Proper evidence handling is important, such as unloading weapons safely before submitting them to labs and
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This document summarizes different types of firearms and toolmarks evidence that may be analyzed in criminal investigations. It discusses various firearms like handguns, revolvers, semi-automatics, rifles and shotguns. It also covers topics like barrel markings, ammunition, firing mechanisms, gunshot wounds, gunpowder residue, toolmarks, impressions and bite mark analysis. Firearms examiners analyze these different types of forensic evidence and compare evidence from crime scenes to suspect weapons using techniques like microscopy.
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This document provides information about firearms and toolmarks analysis in crime scene investigations. It describes key parts of guns like the barrel, cartridge case, slide, and firing pin. It explains how guns work and the components of cartridges, including the primer, smokeless gunpowder, and projectile. It also details characteristics of bullets like rifling impressions, striations, caliber and rifling number that examiners analyze to determine if a specific gun was involved in a shooting. Class characteristics refer to marks that are common to a brand or type of firearm, while individual characteristics are unique to a single firearm.
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The document discusses the history and development of gunpowder, firearms, bullets, and ballistics technology from ancient China to the 19th century. It describes how gunpowder was refined for use in firearms and the development of matchlock, wheel lock, flintlock, and percussion cap firing mechanisms. It also discusses the introduction of rifling in gun barrels and how this improved accuracy. Finally, it summarizes different bullet types, construction methods, and how ballistics analysis can identify class and individual characteristics of firearms and bullets.
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1) Ballistics is the study of the motion of projectiles after being fired from a firearm. It includes exterior, interior, and terminal ballistics.
2) A firearm uses expanding gases from combustion of a propellant to propel a projectile out of the barrel. Firearms can be classified based on factors like intended use, barrel length, rifling, and firing mechanism.
3) In forensic investigations of firearm injuries, medical examiners seek to determine details of the shooting like the type of weapon, distance, number of shots, direction of fire, and whether injury was self-inflicted. Analysis of wound characteristics helps answer these questions.
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This document provides an overview of firearms examination, including different types of firearms like handguns, revolvers, semi-automatics, rifles, and shotguns. It describes how firearms work and how examiners can identify unique markings on bullets and casings to match them to a specific gun. It also discusses other forensic techniques like analyzing gunshot residue and toolmarks, as well as impressions left by shoes and tires.
Bullet and toolmark analysis
Firearms identification is a forensic discipline concerned with determining if a bullet was fired from a particular weapon. While class characteristics like groove patterns and caliber can provide some information, they are not enough for a positive identification. Examiners use comparison microscopes to analyze striation marks left on bullets and cartridge casings by the firearm's barrel and firing mechanism. This allows for positive identifications of bullets and casings to the weapons that fired them. However, shotguns present unique challenges due to the spread of pellets or slugs. Firearms examiners also perform other analyses like distance determination and reconstruction of shooting incidents. Proper evidence handling is important, such as unloading weapons safely before submitting them to labs and
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This document summarizes different types of firearms and toolmarks evidence that may be analyzed in criminal investigations. It discusses various firearms like handguns, revolvers, semi-automatics, rifles and shotguns. It also covers topics like barrel markings, ammunition, firing mechanisms, gunshot wounds, gunpowder residue, toolmarks, impressions and bite mark analysis. Firearms examiners analyze these different types of forensic evidence and compare evidence from crime scenes to suspect weapons using techniques like microscopy.
CSI Toolmarks etc.
This document provides information about firearms and toolmarks analysis in crime scene investigations. It describes key parts of guns like the barrel, cartridge case, slide, and firing pin. It explains how guns work and the components of cartridges, including the primer, smokeless gunpowder, and projectile. It also details characteristics of bullets like rifling impressions, striations, caliber and rifling number that examiners analyze to determine if a specific gun was involved in a shooting. Class characteristics refer to marks that are common to a brand or type of firearm, while individual characteristics are unique to a single firearm.
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The document discusses the history and development of gunpowder, firearms, bullets, and ballistics technology from ancient China to the 19th century. It describes how gunpowder was refined for use in firearms and the development of matchlock, wheel lock, flintlock, and percussion cap firing mechanisms. It also discusses the introduction of rifling in gun barrels and how this improved accuracy. Finally, it summarizes different bullet types, construction methods, and how ballistics analysis can identify class and individual characteristics of firearms and bullets.
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1) Ballistics is the study of the motion of projectiles after being fired from a firearm. It includes exterior, interior, and terminal ballistics.
2) A firearm uses expanding gases from combustion of a propellant to propel a projectile out of the barrel. Firearms can be classified based on factors like intended use, barrel length, rifling, and firing mechanism.
3) In forensic investigations of firearm injuries, medical examiners seek to determine details of the shooting like the type of weapon, distance, number of shots, direction of fire, and whether injury was self-inflicted. Analysis of wound characteristics helps answer these questions.
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Impression evidence like shoe prints and fingerprints can provide class characteristics shared by similar items or individual characteristics unique to a specific piece of evidence. A shoeprint at a crime scene was identified as coming from a specific Reebok shoe model. Firearms leave unique marks on bullets and cartridge casings that allow investigators to match bullets to guns. Gunshot residue contains particles of lead, barium, and antimony that can be deposited on a shooter's hands and examined microscopically to determine if they recently fired a weapon. The trajectory and penetration of bullets can provide information about shooting incidents.
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1. A firearm discharges a missile using expanding gases from combustion in a closed space. It consists of a barrel, action, and grip.
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1. Firearms analysis examines guns, bullets, and cartridge casings to determine if a specific gun was used in a crime. Microscopic marks left on bullets and casings when fired provide unique "fingerprints" that can identify the weapon used.
2. Gun barrels leave distinct striation marks on bullets that pass through them. Comparing test-fired bullets to evidence bullets under a microscope can match bullets to the firearm from which they were fired.
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Impression evidence like shoe prints and fingerprints can provide class characteristics shared by similar items or individual characteristics unique to a specific piece of evidence. A shoeprint at a crime scene was identified as coming from a specific Reebok shoe model. Firearms leave unique marks on bullets and cartridge casings that allow investigators to match bullets to guns. Gunshot residue contains particles of lead, barium, and antimony that can be deposited on a shooter's hands and examined microscopically to determine if they recently fired a weapon. The trajectory and penetration of bullets can provide information about shooting incidents.
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Ballistics is the science dealing with the motion of projectiles like bullets and bombs. It is important for police investigating shootings to match guns to bullets, and for engineers designing firearms. Rifling leaves unique markings on bullets that can link them to the gun used. Exterior ballistics studies how outside factors like wind and gravity affect bullets in flight. Terminal ballistics examines how projectiles behave after impact, using ballistic gel to simulate human tissue.
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Firearms can cause injuries through their components. A firearm discharges a projectile such as a bullet or pellets. The components that produce injury are the gun flame, smoke, unburnt gunpowder particles, cards, and wads. The speed and shape of the projectile along with the density and vitality of the target also influence the extent of injuries. Gunshot wounds vary based on the distance between the firearm and target, ranging from contact wounds with scorching and tattooing to distant wounds without these effects. Exit wounds are generally larger than entry wounds and have everted edges.
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This document provides an introduction to firearms, including the basic parts and types of firearms like rifles, shotguns, pistols and revolvers. It covers safety rules, ammunition, how firearms operate, cleaning procedures and key terminology. The presentation is divided into multiple sections on topics such as actions, sights, safeties, gauges and chokes. It emphasizes safe and responsible firearm handling.
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This document discusses firearm injuries and terminology related to forensic medicine. It describes different types of firearms including shotguns and rifled weapons like pistols, revolvers, and rifles. Shotguns fire multiple pellets while rifled weapons fire single projectiles with grooved barrels. The document details entrance and exit wound characteristics for different firearm ranges from contact wounds to long range injuries. It also discusses factors that can indicate accidents, suicides, or homicides based on wound location and patterns. Doctors have a duty to preserve any foreign materials from wounds and skin samples for potential forensic testing.
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This document discusses firearm injuries and terminology related to forensic medicine. It describes different types of firearms including shotguns and rifled weapons. Shotguns fire multiple pellets while rifled weapons fire a single projectile. The document details the mechanisms of injury from firearms, characteristics of entrance and exit wounds, factors to consider when determining if a firearm injury was from accident, suicide or homicide, and the duties of doctors in cases of firearm injuries and deaths.
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This document discusses the science of ballistics and its application in crime scene analysis. It explains the different types of ballistics including internal, transition, external, and terminal ballistics. Ballistics analysis examines bullets and tool marks to match guns to bullets and link suspects to crimes. Scientists use comparison microscopes and pressed marking analysis, applying chemicals to reveal filed-off serial numbers and match bullets to weapons. This information helps investigators solve crimes by linking physical evidence like bullets and casings to specific firearms and individuals.
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1. A firearm discharges a missile using expanding gases from combustion in a closed space. It consists of a barrel, action, and grip.
2. Rifling imparts spin to bullets for stability and accuracy. Rifled weapons include handguns like pistols and revolvers, as well as rifles. Shotguns have smooth bores.
3. Cartridges contain propellant, primer, casing, and a bullet or shots. Propellant burns to produce gases that accelerate the projectile down the barrel.
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This document provides information on firearm injuries and related topics. It defines firearms and describes their classification based on bore. It also defines key related terms like bullets, pellets, rifling, choking, primers, gunpowder and their importance. The document discusses characteristics of gunshot wounds, differences between entry and exit wounds, and differences between suicidal and homicidal gunshot wounds. It also describes test procedures like dermal nitrate test and special bullet types.
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The document contains instructions and content for a geometry drill lesson. The objective is for students to discover properties of special parallelograms. The lesson includes definitions and examples of rectangles, rhombi, squares, and parallelograms. Students are asked to identify these shapes in diagrams and list their defining properties. They will also complete problems finding missing side lengths and plotting point coordinates to identify geometric objects.
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This document discusses key concepts in ballistics and firearms. It defines ballistics as the science of motion of projectiles and describes its three components: internal, external, and terminal ballistics. It then classifies firearms into smooth bored and grooved firearms like shotguns, rifles, revolvers, and pistols. Key terms are defined such as caliber, velocity, range, rifling, choking, and their purposes and effects are explained. Important parts of firearms like the barrel, firing pin, hammer, trigger, and magazine are also outlined.
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The document provides instructions and a chart for students to complete a 3D scavenger hunt in their classroom. Students are tasked with identifying different 3D forms, including cubes, rectangular prisms, triangular prisms, spheres, pyramids, cones, and cylinders. For each object, they record properties like vertices, edges, and planes, name the real-world item, and sketch a visual clue. Vocabulary terms like shape, form, vertex, edge, and plane are defined.
Production schedule
Week 1 involves initial ideas and blog posts. Weeks 2-3 focus on research, planning, and developing title ideas, influences, and synopses. Weeks 4-5 center on logo/conventions, storyboards, scripts, call sheets, and site plans. Weeks 6-7 are for planning shoots, securing locations/releases, and obtaining audio permissions in preparation for filming.
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Firearms can be classified as either smooth-bore or rifled-bore weapons. Smooth-bore weapons like shotguns fire multiple projectiles at once, while rifled weapons like pistols and rifles fire a single bullet. Entry wounds vary based on the firearm caliber and distance, from contact wounds with scorching and blackening at close range to split entry holes at a more distant range. Exit wounds show a torn hole dependent on the bullet's momentum and any bone fragments carried with it, and the entry wound may be larger than the exit wound at close range. Forensic analysis of gunshot wounds can help reconstruct shooting incidents and determine factors like self-infliction, range, direction, and whether a particular weapon
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The document summarizes the capabilities and examination process of forensic firearm experts. It discusses how experts can identify bullets and cartridge cases even without a suspect firearm by analyzing characteristics like weight, lands and grooves. The examination process involves comparing test-fired bullets and cartridge cases to evidence items under a comparison microscope, looking at matching striations, marks and impressions that can identify the firearm used. It also discusses an Automatic Bullet Identification System (ABIS) that uses computers and algorithms to automate the process of matching ballistic evidence to databases.
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1. Firearms analysis examines guns, bullets, and cartridge casings to determine if a specific gun was used in a crime. Microscopic marks left on bullets and casings when fired provide unique "fingerprints" that can identify the weapon used.
2. Gun barrels leave distinct striation marks on bullets that pass through them. Comparing test-fired bullets to evidence bullets under a microscope can match bullets to the firearm from which they were fired.
3. Other toolmarks left on cartridge casings, such as firing pin impressions and ejector marks, also provide identifying patterns that link spent casings to a particular firearm. The combination of these factors allows forensic experts to determine if a gun was used in
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Oscar Pistorius, a Paralympic athlete, shot and killed his girlfriend Reeva Steenkamp in February 2013. He claimed he mistook her for an intruder. A case of premeditated murder was opened against him. At his trial in 2014, forensic evidence and witness testimony was presented. Pistorius was ultimately found guilty of culpable homicide but acquitted of murder.
Firing Marks
Firing marks left on bullets and cartridge cases can be used to identify the firearm used. There are several types of marks including:
1. Rifling marks on the bullet from the grooves in the barrel. These marks are unique to each gun.
2. Firing pin marks on the primer from the firing pin striking it. Imperfections in the firing pin can be transferred.
3. Breech face marks on the cartridge from the cartridge striking the breech face on firing. Imperfections are imprinted.
4. Extractor and ejector marks on the cartridge case from the mechanisms removing the spent case from the firearm.
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Rifles are firearms designed for precision shooting that are held with both hands and braced against the shoulder. Rifles have grooves called rifling cut into the barrel that make bullets spin for greater accuracy. There are several types of rifle actions including bolt action, lever action, pump action, semi-automatic, and automatic. Rifles can also be single barreled, double barreled, or multi-barreled. Proof marks are stamps applied during manufacturing to show a rifle is safe to fire its intended ammunition and can help determine a rifle's age, history, and country of origin.
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This document discusses the examination process for firearm evidence. It explains that firearms evidence is examined when a weapon has been discharged at a crime scene. Examiners can identify or eliminate firearms as being involved through comparison of cartridge cases, bullets, or the firearm itself if available. Tests are conducted by discharging ammunition through the firearm and recovering test bullets and cartridge cases to compare with evidence. Multiple techniques are used in the comparison process like stereomicroscopy, comparison microscopy, and scanning electron microscopy. The document also provides details on unique issues with examining homemade or improvised firearms.
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This document summarizes key information about barrel manufacture and bullet and cartridge identification. It describes how rifling in gun barrels imparts spin to bullets, improving range and accuracy. It also details how bullets deform to seal in gases and obturate in the barrel. Furthermore, it outlines unique characteristics of gun barrels that can identify them like lands and grooves diameter, depth and twist rate. The document concludes by explaining how fired bullets and cartridge cases can be identified by marks from the gun like striations, firing pin, breech and ejector marks.
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Firearms identification experts can identify key details about firearms from ballistic evidence:
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- The type of bullet, firearm, and presence of gunshot residue can provide important clues during investigations.
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This document discusses principles and practices of firearm identification in forensic science. It defines key ballistics terms and describes how class and individual characteristics can be used to identify firearms. Specific characteristics examined include rifling marks, firing pin impressions, breech face marks, and striations. Methods of comparing bullets and cartridge cases using comparison microscopes, stereomicroscopes, test firing, and automated databases like NIBIN and IBIS are summarized. The document provides an overview of the field of forensic ballistics and firearm identification.
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Different types of marks produce during firing process
When a firearm is discharged, a cartridge case comes in clase contact with the firing pin, the breech face, the extractor, the ejector and the chamber. The fired projectiles come in close
contact with the lead and the barrel.
These parts undergo processes like cutting, hammering, reaming, grinding, filing and polishing. Various tools are used for the purpose. The surface profiles of the tools used continue to change due to wear and tear as the tools work on steel.
Classification of firearms
Firearms are classified based on bore characteristics, mechanism characteristics, and use characteristics. Bore characteristics include whether the firearm has a rifled or smooth bore. Mechanism characteristics refer to the action (such as lever, bolt, or automatic) and loading mechanisms (such as muzzle, breech, or magazine loading). Finally, firearms are also classified based on their intended uses, such as sporting, military, or self defense purposes. The classification system helps to effectively identify, differentiate, and understand different types of firearms.
Forensic Ballistics.pptx
This document summarizes key aspects of forensic ballistics including:
1. Ballistics is the study of firearms, ammunition, and their effects. Forensic ballistics deals with investigating firearms/ammunition and the injuries/medico-legal issues they cause.
2. Ballistics is divided into internal, external, terminal, and wound ballistics. Internal ballistics examines what happens inside the firearm during discharge. External ballistics examines what happens after discharge until impact. Terminal and wound ballistics study the projectile's motion upon impact and the resulting injuries.
3. Key parts of firearms include the chamber, barrel, magazine, and types. Rifled firearms have grooves cut into the barrel to
bullets_-_shot_in_the_darktm_bullet_striations_lecture.pptx
This document provides definitions and information about different types of firearms including handguns, rifles, shotguns, machine guns, and their components such as bullets, cartridge cases, primers, propellants, rifling, and calibers. It explains how firearms markings and toolmarks on bullets and cartridge cases can be examined and compared microscopically to identify whether evidence components were fired from a particular suspect firearm. The examination process and what examiners look for in determining class and individual characteristics is also summarized.
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Examination of Firearm through Cartridge Case and bullet.pptx
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This two-page document provides instructions for a lab experiment on force and motion. The aim is to test a stated hypothesis about what is being tested. Materials and a step-by-step procedure are outlined to guide someone conducting the experiment. Data collection and conclusion sections are included to record results and determine if the initial hypothesis was correct or incorrect based on findings.
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This document summarizes clues that provide evidence for evolution from the fossil record and comparisons between living things. It discusses how fossils are formed and dated, either relatively based on rock layers or radiometrically using radioactive elements. The fossil record shows that simpler life forms existed earlier and more complex forms appeared later, and sometimes fossils can reveal aspects of ancient organisms' environments and behaviors. Additional evidence comes from homologous and vestigial structures, embryology, and DNA comparisons that indicate evolutionary relationships between species.
Chapter 6 vocabulary (Adaptations Over Time)
This document defines 15 key vocabulary terms related to adaptations over time in 7th grade science, including: adaptation, evolution, gradualism, hominid, homologous, natural selection, primate, punctuated equilibrium, radioactive element, sedimentary rock, species, variation, and vestigial structure. The terms relate to how organisms adapt and change over generations through evolutionary processes like natural selection, mutations, and environmental pressures.
Life science chapter 6 section 1 notes
This document discusses ideas about evolution, including early models proposed by Jean Baptiste de Lamarck and Charles Darwin's theory of natural selection. Darwin observed variations among species on the Galapagos Islands that he believed arose through natural selection. His theory proposed that organisms produce more offspring than can survive, variations occur, beneficial variations are passed on, and over generations new species can evolve. The document also discusses gradualism and punctuated equilibrium as models of the speed of evolution, and gives examples of antibiotic resistance in bacteria.
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This document discusses advances in genetics, including genetic engineering, gene therapy, genetically engineered plants, and selective breeding. Genetic engineering involves changing DNA arrangements to alter genes. Gene therapy places a normal gene into a virus to replace defective genes in target cells. More than 2,000 people have participated in gene therapy experiments. Genetically engineered plants are created by inserting genes from one plant into another, allowing traits to transfer between different plant types. Selective breeding has been used for thousands of years to encourage desired traits, while genetic engineering allows direct introduction of traits between different organisms.
Chapter 5 section 2 notes
This document provides an overview of genetics concepts including:
1) Incomplete dominance results in an intermediate phenotype between the two homozygous parents, like pink flowers from red and white flowered parents.
2) Multiple alleles exist for some traits like blood type, which has four phenotypes (A, B, AB, and O) determined by three alleles.
3) Polygenic traits are influenced by multiple gene pairs acting together, producing more variety in phenotypes like hair and eye color.
4) Sex determination is based on XX females and XY males, with males determining offspring sex by contributing either an X or Y chromosome.
Do not copy (Chapter 5 Section 1: Supplemental Notes)
The document discusses heredity and genetics. It explains that genes on chromosomes control traits that are passed from parents to offspring. These genes have different forms called alleles. The study of how traits are inherited is genetics. The section then discusses Gregor Mendel's contributions as the father of genetics, including his use of mathematics and experiments with pea plants to understand dominant and recessive alleles and heredity over generations. It also defines key genetics terms like genotype, phenotype, homozygous, and heterozygous.
Chapter 5 Section 1 Notes (2016)
1) Gregor Mendel conducted the first recorded scientific study of heredity by breeding pea plants in the 1850s. He discovered that traits are passed from parents to offspring through discrete units that we now call genes.
2) In his experiments, Mendel crossed purebred pea plants that differed in one trait, such as stem height. The offspring all exhibited the dominant trait, but when he allowed those offspring to self-pollinate, some exhibited the recessive trait that had been hidden in the previous generation.
3) Mendel's discoveries formed the foundation of genetics and showed that traits are passed from parents to offspring through discrete units that we now call genes. His work with dominant and recess
Chapter 5 Vocabulary Terms (Genetics)
This document is a two-page vocabulary worksheet for students to define key terms related to genetics and heredity. It includes 18 terms across genetics, inheritance patterns, genetic traits, and tools used to study genetics such as Punnett squares. The terms range from basic concepts like genetics, heredity, genotype and phenotype to more complex ideas such as incomplete dominance, polygenic inheritance, sex-linked genes and genetic engineering.
Chapter 4 section 3 (dna)
DNA contains the genetic code for all living organisms. It is made up of two strands coiled around each other. Four nitrogen bases - adenine, guanine, cytosine, and thymine - form rungs between the strands. Watson and Crick discovered that adenine always pairs with thymine and guanine always pairs with cytosine. Genes, sections of DNA, provide instructions for making proteins. RNA carries copies of these instructions from the nucleus to the cytoplasm for protein production. Mutations in genes can cause changes to proteins that may be harmful, harmless, or even beneficial to organisms.
Chapter 4 section 2 notes
Sexual reproduction involves the combination of sex cells from two parents to form a new organism. Meiosis is the process that produces sex cells, which contain half the number of chromosomes found in regular body cells. Meiosis involves two nuclear divisions, resulting in four haploid cells being produced from one original diploid cell. Fertilization then occurs when a haploid egg and sperm cell combine, forming a diploid zygote with the full chromosome number of the species. Mistakes during meiosis can result in sex cells with abnormal chromosome numbers, sometimes causing health issues or death.
Chapter 4 vocabulary terms (student)
This document contains a list of 15 vocabulary terms related to biology including: asexual reproduction, chromosome, diploid, DNA, egg, fertilization, gene, haploid, meiosis, mitosis, mutation, RNA, sexual reproduction, sperm, and zygote. The terms are part of a chapter 4 vocabulary list for a 7th grade general science class.
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Chapter 3 section 3 notes
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2. Photosynthesis uses chlorophyll, carbon dioxide, water and sunlight to produce glucose in producers like plants. Respiration breaks down glucose and other foods to release energy in all organisms.
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7:个人信誉贷款加10分
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◇申请留学生创业基金
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1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
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4:这个认证书并且可以归档倒地方
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6:个人职称评审加20分
7:个人信誉贷款加10分
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Independent Study - College of Wooster Research (2023-2024) FDI, Culture, Glo...
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"Does Foreign Direct Investment Negatively Affect Preservation of Culture in the Global South? Case Studies in Thailand and Cambodia."
Do elements of globalization, such as Foreign Direct Investment (FDI), negatively affect the ability of countries in the Global South to preserve their culture? This research aims to answer this question by employing a cross-sectional comparative case study analysis utilizing methods of difference. Thailand and Cambodia are compared as they are in the same region and have a similar culture. The metric of difference between Thailand and Cambodia is their ability to preserve their culture. This ability is operationalized by their respective attitudes towards FDI; Thailand imposes stringent regulations and limitations on FDI while Cambodia does not hesitate to accept most FDI and imposes fewer limitations. The evidence from this study suggests that FDI from globally influential countries with high gross domestic products (GDPs) (e.g. China, U.S.) challenges the ability of countries with lower GDPs (e.g. Cambodia) to protect their culture. Furthermore, the ability, or lack thereof, of the receiving countries to protect their culture is amplified by the existence and implementation of restrictive FDI policies imposed by their governments.
My study abroad in Bali, Indonesia, inspired this research topic as I noticed how globalization is changing the culture of its people. I learned their language and way of life which helped me understand the beauty and importance of cultural preservation. I believe we could all benefit from learning new perspectives as they could help us ideate solutions to contemporary issues and empathize with others.Using Online job postings and survey data to understand labour market trends
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[4:55 p.m.] Bryan Oates
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Suzanne Spiteri’s recent report on improving the quality and accessibility of job postings to reduce employment barriers for neurodivergent people.
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Ending stagnation: How to boost prosperity across Scotland
A toxic combination of 15 years of low growth, and four decades of high inequality, has left Britain poorer and falling behind its peers. Productivity growth is weak and public investment is low, while wages today are no higher than they were before the financial crisis. Britain needs a new economic strategy to lift itself out of stagnation.
Scotland is in many ways a microcosm of this challenge. It has become a hub for creative industries, is home to several world-class universities and a thriving community of businesses – strengths that need to be harness and leveraged. But it also has high levels of deprivation, with homelessness reaching a record high and nearly half a million people living in very deep poverty last year. Scotland won’t be truly thriving unless it finds ways to ensure that all its inhabitants benefit from growth and investment. This is the central challenge facing policy makers both in Holyrood and Westminster.
What should a new national economic strategy for Scotland include? What would the pursuit of stronger economic growth mean for local, national and UK-wide policy makers? How will economic change affect the jobs we do, the places we live and the businesses we work for? And what are the prospects for cities like Glasgow, and nations like Scotland, in rising to these challenges?
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RMIT University degree offer diploma Transcript
澳洲RMIT毕业证书制作RMIT假文凭定制Q微168899991做RMIT留信网教留服认证海牙认证改RMIT成绩单GPA做RMIT假学位证假文凭高仿毕业证申请墨尔本皇家理工大学RMIT University degree offer diploma Transcript
Fabular Frames and the Four Ratio Problem
Digital, interactive art showing the struggle of a society in providing for its present population while also saving planetary resources for future generations. Spread across several frames, the art is actually the rendering of real and speculative data. The stereographic projections change shape in response to prompts and provocations. Visitors interact with the model through speculative statements about how to increase savings across communities, regions, ecosystems and environments. Their fabulations combined with random noise, i.e. factors beyond control, have a dramatic effect on the societal transition. Things get better. Things get worse. The aim is to give visitors a new grasp and feel of the ongoing struggles in democracies around the world.
Stunning art in the small multiples format brings out the spatiotemporal nature of societal transitions, against backdrop issues such as energy, housing, waste, farmland and forest. In each frame we see hopeful and frightful interplays between spending and saving. Problems emerge when one of the two parts of the existential anaglyph rapidly shrinks like Arctic ice, as factors cross thresholds. Ecological wealth and intergenerational equity areFour at stake. Not enough spending could mean economic stress, social unrest and political conflict. Not enough saving and there will be climate breakdown and ‘bankruptcy’. So where does speculative design start and the gambling and betting end? Behind each fabular frame is a four ratio problem. Each ratio reflects the level of sacrifice and self-restraint a society is willing to accept, against promises of prosperity and freedom. Some values seem to stabilise a frame while others cause collapse. Get the ratios right and we can have it all. Get them wrong and things get more desperate.
Independent Study - College of Wooster Research (2023-2024)
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Do elements of globalization, such as Foreign Direct Investment (FDI), negatively affect the ability of countries in the Global South to preserve their culture? This research aims to answer this question by employing a cross-sectional comparative case study analysis utilizing methods of difference. Thailand and Cambodia are compared as they are in the same region and have a similar culture. The metric of difference between Thailand and Cambodia is their ability to preserve their culture. This ability is operationalized by their respective attitudes towards FDI; Thailand imposes stringent regulations and limitations on FDI while Cambodia does not hesitate to accept most FDI and imposes fewer limitations. The evidence from this study suggests that FDI from globally influential countries with high gross domestic products (GDPs) (e.g. China, U.S.) challenges the ability of countries with lower GDPs (e.g. Cambodia) to protect their culture. Furthermore, the ability, or lack thereof, of the receiving countries to protect their culture is amplified by the existence and implementation of restrictive FDI policies imposed by their governments.
My study abroad in Bali, Indonesia, inspired this research topic as I noticed how globalization is changing the culture of its people. I learned their language and way of life which helped me understand the beauty and importance of cultural preservation. I believe we could all benefit from learning new perspectives as they could help us ideate solutions to contemporary issues and empathize with others.
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Csi training : Toolmarks and
- 1. CSI Training Firearms and Toolmarks STEM: CSI Experience Activity Supplemental Notes
- 2. CSI-Firearms and Toolmarks • Parts of a Gun
- 3. CSI-Firearms and Toolmarks • Semiautomatic Handgun: A gun that fires a single cartridge, ejects spent cartridge case, and reloads itself each time the trigger is pulled. A separate trigger pull is required each time the weapon is fired.
- 4. CSI-Firearms and Toolmarks • Barrel: A long tube the bullet or projectile travels through before it exits the firearm. – The barrel has many shallow ridges, called rifling, which helps the bullet fly in a straight line.
- 5. CSI-Firearms and Toolmarks • Cartridge Case: A container for all the other parts of a cartridge- the projectile, primer, and propellant (gunpowder). After the bullet has been fired the “spent” or empty cartridge case is marked with that gun’s unique individual characteristics.
- 6. CSI-Firearms and Toolmarks • Slide: The portion of a semiautomatic firearm that holds the firing mechanism. After the bullet is fired the slide moves backwards to eject the used cartridge and automatically load another.
- 7. CSI-Firearms and Toolmarks • Firing Pin: The part of the firearm that hits the primer in a cartridge and causes it to explode. This initiates the firing of the bullet. The firing pin can leave distinct marks on the cartridge case.
- 8. CSI-Firearms and Toolmarks • Magazine: A device which holds the cartridges and feeds them one at a time into the firing chamber of the firearm.
- 9. CSI-Firearms and Toolmarks • Rifling: Spiraling ridges located inside the barell of the gun. They cause the projectile to spin as it flies through the air, which improves accuracy. The rifling also marks the bullet with the gun’s unique characteristics.
- 10. CSI-Firearms and Toolmarks HOW A GUN WORKS • When the trigger is pulled. • The hammer hits the firing pin. • The firing pin hits the cartridge.
- 11. CSI-Firearms and Toolmarks PARTS OF A CARTRIDGE • Cartridge: A single unit of ammunition made up of a projectile, propellant , and primer, surrounded by the cartridge casing. A “blank” is a cartridge without a projectile.
- 12. CSI-Firearms and Toolmarks PARTS OF A CARTRIDGE • Primer: A shock sensitive chemical mixture that explodes when struck by the firing pin. Sparks form the primer ignite the propellant and initiate firing of the bullet.
- 13. CSI-Firearms and Toolmarks PARTS OF A CARTRIDGE • Cartridge Case: A container for all the other parts of the cartridge, the projectile, primer, and propellant (gunpowder). After the bullet has been fired the “spent” or empty cartridge is marked with that gun’s unique individual characteristic.
- 14. CSI-Firearms and Toolmarks PARTS OF A CARTRIDGE • Smokeless Gunpowder: A complex chemical mixture that rapidly burns when ignited by a spark from the primer. This produces gases that rapidly expand and force the bullet out of the firearm.
- 15. CSI-Firearms and Toolmarks PARTS OF A CARTRIDGE • Caliber: An approximate measurement of the bullet’s diameter. For example, a .45 caliber bullet has a diameter of 0.45 inches, and a 9mm bullet has a diameter of 9 millimeters. (0.9 centimeters)
- 16. CSI-Firearms and Toolmarks PARTS OF A CARTRIDGE • Projectile: Any object propelled by an explosive reaction. Bullets are specialized projectiles designed to be fast and accurate. The size of the bullet is measured by its caliber (diameter).
- 17. CSI-Firearms and Toolmarks Bullet Characteristics • Stirations: Tiny, microscopic scratches on the surface of the bullet, usually located inside the rifling impressions. No two firearms will produce exactly the same pattern of striations.
- 18. CSI-Firearms and Toolmarks Bullet Characteristics • Rifling Impression: Impressions left on the surface of the bullet after it has been fixed from a firearm with a rifled barrel. The rifling impressions on a bullet can be either conventional (deep and easy to see, as in the picture) or polygonal (smoother and harder to see)
- 19. CSI-Firearms and Toolmarks Bullet Characteristics • Rifling Number: The number of lands (raised areas) or grooves in a rifled barrel. The rifling number of a particular firearm can be determined by rotating the bullet and counting the number of rifling impression present on the surface.
- 20. CSI-Firearms and Toolmarks Bullet Characteristics • Rifling Direction: Rifling grooves can spiral either to the left or right; making the bullet spin either clockwise or counterclockwise in the air. The direction of the rifling is determined by the direction of the grooves as they move from the base to the top of the bullet.
- 21. CSI-Firearms and Toolmarks Bullet Characteristics • Firearms Examiners use two types of bullet characteristics to determine if a bullet could have been fired by a certain gun: • What would not be a class characteristic?? • Striations, caliber, Rifling Direction, or Rifle Number • Class Characterisitcs: Specific for a certain brand or type of firearm. • Individual Characteristics: Specific for an INDIVIDUAL firearm.
- 22. CSI-Firearms and Toolmarks Class Characterisitics • Firearms Examiners use two types of bullet characteristics to determine if a bullet could have been fired by a certain gun: • Class Characterisitcs: Specific for a certain brand or type of firearm. • Individual Characteristics: Specific for an INDIVIDUAL firearm.