//www.koonmotors.com/news/health_medicine/forensics/ Forensics. How accurate is DNA evidence? Fingerprints? Read current scientific research on the successes and limitations of identification techniques. en-us Sun, 02 Jul 2023 18:47:59 EDT Sun, 02 Jul 2023 18:47:59 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/health_medicine/forensics/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/05/230515132002.htm Human environmental DNA is ubiquitous in air, soil and water samples and can be traced to individuals, demonstrating new scientific possibilities but raising ethical concerns around consent with eDNA research. Mon, 15 May 2023 13:20:02 EDT //www.koonmotors.com/releases/2023/05/230515132002.htm //www.koonmotors.com/releases/2023/04/230403162459.htm It is possible to retrieve forensically relevant information from human DNA in household dust. Mon, 03 Apr 2023 16:24:59 EDT //www.koonmotors.com/releases/2023/04/230403162459.htm //www.koonmotors.com/releases/2022/11/221130114634.htm Scientists have successfully identified the urinary biomarkers of an emerging subclass of synthetic cannabinoids, called OXIZID, to monitor potential abuse. Wed, 30 Nov 2022 11:46:34 EST //www.koonmotors.com/releases/2022/11/221130114634.htm //www.koonmotors.com/releases/2022/10/221031104414.htm The researchers suggest that mass school shootings are different from other forms of mass murder, and that they should be looked at as a distinct phenomenon. Factors other than severe mental illness contribute to the vast majority of cases. 星期一,2022年10月31日10:44:14美国东部时间 //www.koonmotors.com/releases/2022/10/221031104414.htm //www.koonmotors.com/releases/2022/10/221013194053.htm Watch any episode of 'CSI,' and a character will use forensic DNA profiling to identify a criminal. A new study suggests that these forensic profiles may indirectly reveal medical information -- perhaps even those of crime victims -- contrary to what the legal field has believed for nearly 30 years. The findings could have ethical and legal implications. Thu, 13 Oct 2022 19:40:53 EDT //www.koonmotors.com/releases/2022/10/221013194053.htm //www.koonmotors.com/releases/2022/08/220823115609.htm A collection of photos of genetically unrelated lookalikes, along with DNA analysis, revealed that strong facial similarity is associated with shared genetic variants. Tue, 23 Aug 2022 11:56:09 EDT //www.koonmotors.com/releases/2022/08/220823115609.htm //www.koonmotors.com/releases/2022/07/220729173151.htm Researchers have found the development of the frontal sinus was affected more by sexual dimorphism than the ancestry of the individual and that it was the interplay between those two factors that produced the most significant variation. Fri, 29 Jul 2022 17:31:51 EDT //www.koonmotors.com/releases/2022/07/220729173151.htm //www.koonmotors.com/releases/2022/07/220714091056.htm A new study of data from Chicago found that the neighborhoods where violent crime fell the most, cardiovascular disease mortality fell sharply, too Thu, 14 Jul 2022 09:10:56 EDT //www.koonmotors.com/releases/2022/07/220714091056.htm //www.koonmotors.com/releases/2022/04/220421141552.htm DNA analysis of thousands of tumours from patients has found a 'treasure trove' of clues about the causes of cancer, with genetic mutations providing a personal history of the damage and repair processes each patient has been through. Thu, 21 Apr 2022 14:15:52 EDT //www.koonmotors.com/releases/2022/04/220421141552.htm //www.koonmotors.com/releases/2022/04/220412095416.htm New research is helping law enforcement agents, forensic scientists and historians uncover attempts to hide victims. Tue, 12 Apr 2022 09:54:16 EDT //www.koonmotors.com/releases/2022/04/220412095416.htm //www.koonmotors.com/releases/2022/03/220331101518.htm Skin cells and their DNA varies between individuals, but new data shows that some groups of people have higher variability in their cell deposits. The South Australian forensic science researchers are building a suite of new insights into crime scene investigation -- including the difference between high, intermediate and low skin 'shedders' that will help understanding of trace or 'touch DNA'. Thu, 31 Mar 2022 10:15:18 EDT //www.koonmotors.com/releases/2022/03/220331101518.htm //www.koonmotors.com/releases/2022/03/220328112545.htm Researchers have proposed a method of assigned sex estimation that is 'population-inclusive,' or one that did not inherently rely on any estimation of ancestry (population affinity) by using 3D volume-rendered computed tomography (CT) scans of ancestry skulls to estimate assigned sex at birth. Mon, 28 Mar 2022 11:25:45 EDT //www.koonmotors.com/releases/2022/03/220328112545.htm //www.koonmotors.com/releases/2022/01/220128100735.htm A new study has determined the post-mortem interval of human skeletal remains using real samples, which has been made possible by the combination of two non-destructive analytical tools: Raman spectroscopy and chemometrics. This opens up new avenues for dating in the field of forensic medicine and anthropology. Fri, 28 Jan 2022 10:07:35 EST //www.koonmotors.com/releases/2022/01/220128100735.htm //www.koonmotors.com/releases/2021/12/211214134959.htm Efforts to eradicate a human parasitic disease are being hampered by dogs eating infected fish, new research shows. Tue, 14 Dec 2021 13:49:59 EST //www.koonmotors.com/releases/2021/12/211214134959.htm //www.koonmotors.com/releases/2021/12/211210102901.htm Detecting the activity of CRISPR gene editing tools in organisms with the naked eye and an ultraviolet flashlight is now possible using new technology. Fri, 10 Dec 2021 10:29:01 EST //www.koonmotors.com/releases/2021/12/211210102901.htm //www.koonmotors.com/releases/2021/11/211119084933.htm Identifying specific facial features that can be used to distinguish a child's face from an adult's may offer a useful tool for determining whether children are depicted in indecent images of children, according to new research. Fri, 19 Nov 2021 08:49:33 EST //www.koonmotors.com/releases/2021/11/211119084933.htm //www.koonmotors.com/releases/2021/11/211115123541.htm Researchers have trained computers to predict the next designer drugs before they are even on the market, technology that could save lives. Identifying these so-called 'legal highs' within seized pills or powders can take months, during which time thousands of people may have already used a new designer drug. But new research is already helping law enforcement agencies around the world to cut identification time down from months to days, crucial in the race to identify and regulate new versions of dangerous psychoactive drugs. Mon, 15 Nov 2021 12:35:41 EST //www.koonmotors.com/releases/2021/11/211115123541.htm //www.koonmotors.com/releases/2021/11/211103082621.htm New research could help forensic teams understand whether people or animals were the victims of fatal lightning strikes, based solely upon an analysis of their skeletons. Wed, 03 Nov 2021 08:26:21 EDT //www.koonmotors.com/releases/2021/11/211103082621.htm //www.koonmotors.com/releases/2021/08/210830113320.htm A team of researchers has come up with a new solution to boost the surveillance of designer drug abuse. The team has identified three new urinary biomarkers that could be used to detect consumption of ADB-BUTINACA, an emerging synthetic cannabinoid which is a type of new psychoactive substance. The innovative approach used to identify the biomarkers can be applied to other existing and new synthetic cannabinoids. Mon, 30 Aug 2021 11:33:20 EDT //www.koonmotors.com/releases/2021/08/210830113320.htm //www.koonmotors.com/releases/2021/07/210714110543.htm A new study finds forensics researchers use terms related to ancestry and race in inconsistent ways, and calls for the discipline to adopt a new approach to better account for both the fluidity of populations and how historical events have shaped our skeletal characteristics. Wed, 14 Jul 2021 11:05:43 EDT //www.koonmotors.com/releases/2021/07/210714110543.htm //www.koonmotors.com/releases/2021/07/210708111505.htm In a new article, researchers provide an overview of sample preparation techniques and information on routine sample types that may be encountered in forensic toxicology cases. Thu, 08 Jul 2021 11:15:05 EDT //www.koonmotors.com/releases/2021/07/210708111505.htm //www.koonmotors.com/releases/2021/06/210609123419.htm Variants of viruses, such as that causing COVID-19, can now be quickly studied in the laboratory, even before they emerge in nature and become a major public health challenge. Wed, 09 Jun 2021 12:34:19 EDT //www.koonmotors.com/releases/2021/06/210609123419.htm //www.koonmotors.com/releases/2021/05/210521115308.htm Depressive disorders are among the most frequent illnesses worldwide. The causes are complex and to date only partially understood. The trace element lithium appears to play a role. The distribution of lithium in the brains of depressive people is different from the distribution found in healthy humans. Fri, 21 May 2021 11:53:08 EDT //www.koonmotors.com/releases/2021/05/210521115308.htm //www.koonmotors.com/releases/2021/05/210520133724.htm New research has found that some brain activity methods used to detect incriminating memories do not work accurately in older adults. Thu, 20 May 2021 13:37:24 EDT //www.koonmotors.com/releases/2021/05/210520133724.htm //www.koonmotors.com/releases/2021/05/210519120728.htm The latest findings show that with clever science, a single fingerprint left at a crime scene could be used to determine whether someone has touched or ingested class A drugs. Wed, 19 May 2021 12:07:28 EDT //www.koonmotors.com/releases/2021/05/210519120728.htm //www.koonmotors.com/releases/2021/05/210513142511.htm A new strategy for capturing the 3D shape of the human face draws on data from sibling pairs and leads to identification of novel links between facial shape traits and specific locations within the human genome. Thu, 13 May 2021 14:25:11 EDT //www.koonmotors.com/releases/2021/05/210513142511.htm //www.koonmotors.com/releases/2021/04/210421124525.htm Careful criminals usually clean a scene, wiping away visible blood and fingerprints. However, prints made with trace amounts of blood, invisible to the naked eye, could remain. Dyes can detect these hidden prints, but the dyes don't work well on certain surfaces. Now, researchers have developed a fluorescent polymer that binds to blood in a fingerprint -- without damaging any DNA also on the surface -- to create high-contrast images. Wed, 21 Apr 2021 12:45:25 EDT //www.koonmotors.com/releases/2021/04/210421124525.htm //www.koonmotors.com/releases/2021/04/210420121533.htm 血滴来回如何寻找答案m a gunshot wound can reverse direction while in flight, researchers explored the influence of propellant gases on blood backspatter. They report using numeric modeling to capture the behavior of gun muzzle gases and predict the reversal of blood droplet flight, which was captured experimentally. Their experiments also show the breakup of blood droplets, a future extension of their modeling efforts. Tue, 20 Apr 2021 12:15:33 EDT //www.koonmotors.com/releases/2021/04/210420121533.htm //www.koonmotors.com/releases/2021/03/210330100321.htm A new study to measure SARS-CoV-2 viral load in a variety of organs and tissues may aid our understanding of how COVID-19 develops following infection. Tue, 30 Mar 2021 10:03:21 EDT //www.koonmotors.com/releases/2021/03/210330100321.htm //www.koonmotors.com/releases/2021/03/210322085513.htm Australian researchers have revealed how melanoma cells are flooded with DNA changes as this skin cancer progresses from early, treatable stages through to fatal end-stage disease. Mon, 22 Mar 2021 08:55:13 EDT //www.koonmotors.com/releases/2021/03/210322085513.htm //www.koonmotors.com/releases/2021/03/210311123443.htm Researchers have identified 50 new genes for eye color in a study involving the genetic analysis of almost 195,000 people across Europe and Asia. Thu, 11 Mar 2021 12:34:43 EST //www.koonmotors.com/releases/2021/03/210311123443.htm //www.koonmotors.com/releases/2021/02/210222092301.htm The Netherlands, United States, Australia and New Zealand are consuming the highest amounts of designer 'party' drugs, according to wastewater samples taken from eight countries over the New Year period. Mon, 22 Feb 2021 09:23:01 EST //www.koonmotors.com/releases/2021/02/210222092301.htm //www.koonmotors.com/releases/2020/12/201214104737.htm An expert medical panel convened to develop evidence-based criteria that allow for accurate determination of death in mountain rescue situations. Mon, 14 Dec 2020 10:47:37 EST //www.koonmotors.com/releases/2020/12/201214104737.htm //www.koonmotors.com/releases/2020/12/201209124928.htm A single strand of hair in a crime scene contains many clues that can help identify a perpetrator. In a recent study, scientists have combined two modern techniques, called surface-enhanced Raman spectroscopy and X-ray fluorescence, to distinguish between different colors in individual hair strands. Both these techniques are almost non-destructive and can be conducted with portable devices, making this a promising way to get supportive evidence in forensic investigations. Wed, 09 Dec 2020 12:49:28 EST //www.koonmotors.com/releases/2020/12/201209124928.htm //www.koonmotors.com/releases/2020/10/201014141142.htm A new set of assessment tools shows promise in capturing how the COVID-19 pandemic affects patterns of criminal activity. Wed, 14 Oct 2020 14:11:42 EDT //www.koonmotors.com/releases/2020/10/201014141142.htm //www.koonmotors.com/releases/2020/10/201006091249.htm Using dried blood spot samples (DBS) is an accurate alternative to venous blood in detecting SARS-CoV-2 antibody tests, a new study has found. Tue, 06 Oct 2020 09:12:49 EDT //www.koonmotors.com/releases/2020/10/201006091249.htm //www.koonmotors.com/releases/2020/08/200831112318.htm With global food on the rise, a new study has found new evidence that the yellow mealworm shows promise as alternative source of nutritional protein. Mon, 31 Aug 2020 11:23:18 EDT //www.koonmotors.com/releases/2020/08/200831112318.htm //www.koonmotors.com/releases/2020/08/200806111823.htm Researchers have succeeded in developing a dynamic 3D CT scanning method that shows what happens inside the body during simulated heart massage. The method could help to increase the chance of surviving a cardiac arrest. Thu, 06 Aug 2020 11:18:23 EDT //www.koonmotors.com/releases/2020/08/200806111823.htm //www.koonmotors.com/releases/2020/06/200624095950.htm Forensic scientists have discovered a new way of presenting fragile evidence, by reconstructing a 'jigsaw' of human bone fragments using 3D printing. In the first known study of its kind, researchers took fragmented burnt human bones and tested the ability to make 3D models suitable to be shown to a jury in court. Wed, 24 Jun 2020 09:59:50 EDT //www.koonmotors.com/releases/2020/06/200624095950.htm //www.koonmotors.com/releases/2020/04/200429105916.htm When a dead body is found, one of the first things a forensic pathologist tries to do is estimate the time of death. There are several ways to do this, including measuring body temperature or observing insect activity, but these methods don't always work for corpses found in water. Now, researchers are reporting a mouse study showing that certain proteins in bones could be used for this determination. Wed, 29 Apr 2020 10:59:16 EDT //www.koonmotors.com/releases/2020/04/200429105916.htm //www.koonmotors.com/releases/2020/04/200428225426.htm Researchers have recreated how toxins from smoking cause unique patterns of DNA damage. The discovery could help scientists better understand the cause of bladder cancer and the link to smoking. The causes of bladder cancer remain largely unknown, however smoking is seen as the main risk factor for the disease. Tue, 28 Apr 2020 22:54:26 EDT //www.koonmotors.com/releases/2020/04/200428225426.htm //www.koonmotors.com/releases/2020/04/200423082233.htm Scientists used UV light and glow powder to study the way small amounts of drug residue get spread around a forensic chemistry lab when analysts test seized drugs. Their study addresses safety concerns in an age of super-potent synthetic drugs like fentanyl, which can potentially be hazardous to chemists who handle them frequently. Thu, 23 Apr 2020 08:22:33 EDT //www.koonmotors.com/releases/2020/04/200423082233.htm //www.koonmotors.com/releases/2020/03/200318143643.htm Maggots on a dead body or wound can help pinpoint when a person or animal died, or when maltreatment began in elder, child care or animal neglect cases. However, the current process for making this determination is time consuming and resource intensive. It also relies on species assessment by trained entomologists. Now, researchers report the development of a molecular maggot analysis method that's quick, easy and less subjective. Wed, 18 Mar 2020 14:36:43 EDT //www.koonmotors.com/releases/2020/03/200318143643.htm //www.koonmotors.com/releases/2020/02/200206080453.htm An experimental fingerprint detection approach can identify traces of cocaine on human skin, even after someone has washed their hands -- and the test is also smart enough to tell whether an individual has actually consumed the class A drug, or simply handled it. Thu, 06 Feb 2020 08:04:53 EST //www.koonmotors.com/releases/2020/02/200206080453.htm //www.koonmotors.com/releases/2019/10/191023132257.htm In an effort to help identify skeletal remains of Thai descent, researchers have found that examining the distal humerus (elbow) bone is superior to previous techniques that were developed for identifying sex in a non-Asian population. Wed, 23 Oct 2019 13:22:57 EDT //www.koonmotors.com/releases/2019/10/191023132257.htm //www.koonmotors.com/releases/2019/10/191022112202.htm Scientists have developed a forensic tracer that uses lead isotopes to detect and measure coal fly ash in dust, soil and sediments. Tests show the new tracer can distinguish between the isotopic signature of lead derived from coal ash and lead that comes from other major human or natural sources. Exposure to fly ash from dust, soil or sediments has been linked to numerous diseases and health concerns. Tue, 22 Oct 2019 11:22:02 EDT //www.koonmotors.com/releases/2019/10/191022112202.htm //www.koonmotors.com/releases/2019/10/191004105645.htm A test to detect opioid drugs in exhaled breath has been developed by engineers and physicians. A breath test could be useful in caring for chronic pain patients as well as for checking for illegal drug use. Fri, 04 Oct 2019 10:56:45 EDT //www.koonmotors.com/releases/2019/10/191004105645.htm //www.koonmotors.com/releases/2019/09/190917115455.htm Scientists have demonstrated a way for police to quickly and safely test whether a baggie or other package contains illegal drugs without having to handle any suspicious contents directly. The new technique can limit the risk of accidental exposure to fentanyl and other highly potent drugs that can be dangerous if a small amount is accidentally inhaled. Tue, 17 Sep 2019 11:54:55 EDT //www.koonmotors.com/releases/2019/09/190917115455.htm //www.koonmotors.com/releases/2019/09/190916101849.htm Intimate partner homicide - that is women who are killed by their partner - constitutes a significant proportion of the homicide statistics. Mon, 16 Sep 2019 10:18:49 EDT //www.koonmotors.com/releases/2019/09/190916101849.htm //www.koonmotors.com/releases/2019/08/190806121136.htm 血溅出物是弦乐器的水动力特征ent crimes, often revealing when an event occurred and where the perpetrator and victim were located, and researchers have worked toward better understanding the fluid dynamics at play during gunshot spatters. They propose a model for the disintegration of a liquid due to an arbitrarily shaped projectile. Their model focuses on providing predictive models of gunshot blood atomization and droplet flight and spattering. Tue, 06 Aug 2019 12:11:36 EDT //www.koonmotors.com/releases/2019/08/190806121136.htm //www.koonmotors.com/releases/2019/06/190610215602.htm The social environment is an influential factor with regards to drug addiction. However, some people living in the same environment become drug users, whilst others resist. Is this difference just random or are there key personality traits that help people to avoid drug addiction? Is it possible to evaluate the risk of drug consumption for different personality profiles? Is this risk different for different drugs? Mon, 10 Jun 2019 21:56:02 EDT //www.koonmotors.com/releases/2019/06/190610215602.htm //www.koonmotors.com/releases/2019/04/190415105048.htm Scientists have developed a catalogue of DNA mutation 'fingerprints' that could help doctors pinpoint the environmental culprit responsible for a patient's tumor - including showing some of the fingerprints left in lung tumors by specific chemicals found in tobacco smoke. Mon, 15 Apr 2019 10:50:48 EDT //www.koonmotors.com/releases/2019/04/190415105048.htm //www.koonmotors.com/releases/2019/04/190409093807.htm About two-thirds of the adults dying prematurely from natural causes did not seek medical help within the 30 days preceding their death, reported forensic researchers. Tue, 09 Apr 2019 09:38:07 EDT //www.koonmotors.com/releases/2019/04/190409093807.htm //www.koonmotors.com/releases/2019/04/190403080504.htm An estimated 76 million people use psychostimulants, which include illicit drugs such as methamphetamine, cocaine, and 3,4-methylenedioxymethamphetamine, as well as prescription stimulants. A new study from Australia is the first to present national data of psychostimulant use in young adults who experienced a fatal stroke. Wed, 03 Apr 2019 08:05:04 EDT //www.koonmotors.com/releases/2019/04/190403080504.htm //www.koonmotors.com/releases/2019/03/190327112622.htm For decades, forensic scientists have tested strands of hair to reveal drug use or poisoning. But in recent years, reports have questioned the technique -- in particular, its ability to distinguish between the intake of a substance and external contamination of the hair. Wed, 27 Mar 2019 11:26:22 EDT //www.koonmotors.com/releases/2019/03/190327112622.htm //www.koonmotors.com/releases/2019/03/190319161012.htm New work shows that an enzyme inhibitor reduced inflammation in the brains of mice born to mothers with maternal immune activation. Inflammation triggered by the enzyme, soluble epoxide hydrolase, is linked to neurodevelopmental disorders in these mice. 星期二,2019年3月19日16:10:12 EDT //www.koonmotors.com/releases/2019/03/190319161012.htm //www.koonmotors.com/releases/2019/03/190312123716.htm Addiction to prescription opioids has reached a crisis level in the United States. Now the drug is causing concern across the Atlantic. Researchers from Denmark, Norway and Sweden urge caution after discovering that prescriptions for the pain medication oxycodone have significantly increased during the last decade. Tue, 12 Mar 2019 12:37:16 EDT //www.koonmotors.com/releases/2019/03/190312123716.htm //www.koonmotors.com/releases/2019/02/190213081657.htm According to the Centers for Disease Control and Prevention, Down syndrome is the most common birth defect, occurring once in every 700 births. However, traditional noninvasive prenatal tests for the condition are unreliable or carry risks for the mother and fetus. Now, researchers have developed a sensitive new biosensor that could someday be used to detect fetal Down syndrome DNA in pregnant women's blood. Wed, 13 Feb 2019 08:16:57 EST //www.koonmotors.com/releases/2019/02/190213081657.htm //www.koonmotors.com/releases/2019/01/190129124908.htm In an effort to increase the effectiveness and efficiency of law enforcement searches for human remains in the wild, searchers should cover the same area twice from two different angles and work no more than 1 to 2 meters apart while exploring the area. Tue, 29 Jan 2019 12:49:08 EST //www.koonmotors.com/releases/2019/01/190129124908.htm //www.koonmotors.com/releases/2019/01/190115111950.htm New research finds significant flaws in recently released forensic software designed to assess the age of individuals based on their skeletal remains. The researchers report that, on average, the software's age estimates are off by more than 14 years. Tue, 15 Jan 2019 11:19:50 EST //www.koonmotors.com/releases/2019/01/190115111950.htm