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Biology - Biological Sciences Expert Witnesses

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George Schiro, MS
DNA Technical Leader - Forensic Scientist
220 Woodgate Dr. S.
Brandon MS 39042
USA
phone: 337-322-2724
George Schiro is a DNA Technical Leader - Forensic Scientist. His duties include incorporating the DNA Advisory Board (DAB) standards, accountability for the technical operations of the lab, conducting DNA analysis using the 13 STR core loci and Y STR in casework, DNA research, forensic science training and crime scene investigation.

Mr. Schiro has worked over 3500 cases and has qualified as an expert over 175 times in 31 Louisiana parish courts, Arkansas, California, Florida, Mississippi, Missouri, Nevada, New York, Texas, West Virginia, federal court, U.S. court-martial, and two Louisiana city courts. Has also consulted on cases in 29 states.

Qualified as an Expert in the Following Areas:
  • Latent Fingerprint Development
  • Serology
  • Crime Scene Investigation
  • Forensic Science
  • Trajectory Reconstruction
  • Shoeprint Identification
  • Crime Scene Reconstruction
  • Bloodstain Pattern Analysis
  • DNA Analysis
  • Fracture Match Analysis
  • Hair Comparison
  • In 1989, I heard Dr. Henry Lee speak at a homicide conference in Metairie, Louisiana. Dr. Lee is currently the Connecticut Department of Public Safety Commissioner and, perhaps, the most famous forensic scientist in the world.

    3/30/2010 · Forensics
    One specialized operation that is routinely abused is the crime scene operation. From small police departments to large law enforcement agencies, the biggest problem with crime scene operations is the presence and interference of non-essential personnel at the scene. The law enforcement agency’s administration should deal with this and other crime scene investigation problems through effective crime scene management.

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    Dr. Bruce C. Hemming
    PhD, President/CEO
    See Multiple Addresses Below
    St. Louis MO 63119-3421
    USA
    phone: 314-645-2177 or 800-688-9144
    fax: 314-645-2544
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    Dr. Bruce C. Hemming, PhD - President & CEO of Microbe Inotech Laboratories, Inc. (The MiL, Inc.) is an accomplished science and business professional with over 30 years of real-world experience in Microbiology and its practical applications. Dr. Hemming and his staff perform rapid microbial identifications, confirmations, and contaminant sourcing, of all pathogenic, indicator, and spoilage organisms (bacterial, yeasts and molds, and other fungi) using the latest genetic (DNA) and instrumental technologies.

    Dr. Hemming provides litigation support services to attorneys representing both Plaintiff and Defense. He brings with him The MiL advantage of:
    • Proprietary, microbial kinetic and endpoint assays
    • Microbial databases which contain profiles of over 3,000 species of microbes
    • Microbial diagnostics research
    • Product development capabilities
    • Specialized skills in using automated, microbial characterization, identification tools
    Areas of Expertise
    • Food Safety & Nutrition - Spoilage
    • Environmental Sampling
    • Biomedical - Pharmaceutical
    • Industrial Hygiene
    Helix Center (Core Lab)
    1100 Corporate Square Drive, Ste. 225
    St. Louis, MO 63132
    Telephone: 800-688-9144
    Microbe Scan, LLC
    1100 Corporate Square Drive, Ste. 224
    St. Louis, MO 63132
    Telephone: 800-688-9144


    View Dr. Hemming's Consulting Profile.
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    Dr. Leslie Hutchinson, MD, MPH, FACOEM, CHCQM
    President
    214 Wynfield Way
    Auburn GA 30011-3415
    USA
    phone: 770-963-1223
    fax: 770-995-5379
    HLM-Logo.jpg
    Leslie Hutchinson Occupational Medicine Expert PhotoDr. Leslie Hutchinson, MD, MPH, FACOEM, CHCQM, is a board-certified specialist in Occupational and Preventive Medicine, frequent speaker, Epidemiologist and Toxicologist with over 32 years of experience. His occupational and Environmental Medicine core skills, and clinical medicine, toxicology, and epidemiology experience enable him to assess causation more effectively than specialists who treat specific diseases. He is licensed in California and Georgia.

    Dr. Hutchinson obtained his MPH in epidemiology at The Johns Hopkins University and his MD from the University of Cincinnati. He completed an internship in internal medicine at the Wright State University. Dr. Hutchinson is a fellow of the American College of Occupational and Environmental Medicine and a residency in Clinical Environmental and Occupational Medicine at Emory University. He has 11 publications in the medical literature and has served for many years as an Associate Professor of Environmental and Occupational Health at Emory University in Atlanta. He is a qualified expert in:
    • Medical Causation
    • Occupational & Preventive Medicine
    • Toxicology
    • Ionizing / Non-ionizing Radiation
    • Disease Clusters
  • Mold and Mold Toxins
  • Epidemiology and Public Health
  • Chemical and Biological Weapons
  • Weapons of Mass Destruction
  • Sick Building Syndrome
  • Additional Information:

    Dr. Hutchinson has consulted extensively throughout the U.S. on medical causation and medical effects of chemical, ionizing and non-ionizing radiation, biological agents, mold and mold toxins, explosive materials, and acute injury and cumulative trauma hazards. He has evaluated and resolved many situations with indoor air quality problems, sick building syndrome, and disease clusters. Dr. Hutchinson has a long record of successful use of risk communication methods to reduce and eliminate public outrage arising from ideas about medical effects inconsistent with mainstream medical evaluations, and exaggerations and misunderstanding of medical risks arising from misleading or erroneous information.

    Please visit HLM Medical Consultants' website at www.hlmconsultants.com to view other areas of unique medical expertise.
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    Alan L. Friedman, PhD
    544 E Ogden Ave
    Ste 700-385
    Milwaukee WI 53202
    USA
    phone: 414-395-3460
    fax: 414-253-6950
    Alan-Friedman-Forensic-DNA-Expert-Photo.jpg
    Alan L. Friedman, PhD, specializes is Forensic DNA Analysis. He earned a PhD in Molecular Genetics from the University of Chicago, Division of Biological Sciences and Cell Biology at the Pritzker School of Medicine.

    Litigation Support - Dr. Friedman brings over twenty years of experience translating forensic science into clear, understandable English for attorneys, judges and juries. Testimony in over 60 cases in 9 states as well as Federal Courts. Expert DNA case review, testimony and laboratory witnessing in sexual assaults, homicides, robberies and other major felonies as well as paternity and other civil cases. Accept public defender and court appointments.

    Areas of Expertise:
    • Forensic DNA
    • Forensic Biology
    • Serology and Stain ID
    • Statistical Genetics
  • Case Review
  • Court Testimony
  • Laboratory Test Witnessing
  • Paternity
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    Dr. Aaron Hilliard, PhD
    Principal
    10151 Deerwood Park Blvd.Building 200, Suite 250
    Jacksonville FL 32256
    USA
    phone: 904-923-3789
    Aaron-Hilliard-Health-Matters-logo.jpg
    Dr. Aaron Hilliard, PhD specializes in the areas of Environmental, Medical, Pharmaceutical, and Toxicological Sciences. Dr. Hilliard is an experienced forensic toxicologist with degrees in pharmacology, toxicology, and environmental health.

    Dr. Hilliard's services include conducting medical research and medical file review for personal injury that results from biological, chemical, environmental or pharmaceutical agents. He is also available to perform on-site inspections, sampling of nursing home, adult living facilities, medical and laboratory environments.

    Serving the legal community for over 15 years, Dr. Hilliard has worked with local, state and federal regulatory agencies and other entities on a national and international basis. His expertise spans the scope of environmental and infectious diseases involving food and water. This can include respiratory infections from environmental sources to hospital acquired infections such as Methicillin-Resistant Staphylococcus Aureus. Dr. Hilliard is available to attorneys for both Plaintiff and Defense. His areas of expertise include:

    Medical Matters Involving:
    • Pharmaceuticals
    • Alcohol
    • Adverse Drug Reaction
    • Medication Errors
    • Recreational Drugs
    Environmental Expertise Includes:
    • Public Health and Safety
    • Epidemiology
    • Sanitation
    • Toxic Chemical Exposure
    • Hazardous Waste Disposal
  • Groundwater Contamination
  • Environmental Justice
  • Superfund Site Risk Communication
  • Lead Exposure
  • Mold Exposure
  • View Dr. Aaron Hilliard's Consulting Profile.
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    Aristotle the Philosopher
    Serving All Nations
    Lyceum
    Athens Greece
    phone: 866-239-7378
    Aristotle-Philosphy-Expert.jpg
    Aristotle is a Greek Philosopher and Scientist and one of the greatest intellectual figures of Western history. A prolific writer and polymath, he radically transformed most, if not all, areas of knowledge he touched.

    Founder of the Lyceum scholastic academy, Aristotle has written extensively on all subjects: politics, metaphysics, ethics, logic, and science. As the father of the field of intellectual discipline and logic, he was the first to develop a formalized system for reasoning. He divided the sciences into three kinds:
    • Productive - those that have a product such as Engineering, Architecture, Rhetoric (i.e. physical structures, victory on battlefield)
    • Practical - those that guide behavior such as Ethics and Politics
    • Theoretical - those that have no product such as Physics and Theology but are studied for their own sake
    Litigation Support - Aristotle's emphasis on good reasoning combined with his belief in the scientific method forms the backdrop for most of his work. His method includes defining the subject matter, considering the generally accepted views on the subject, and then presenting his own findings. Aristotle is available to counsel representing both Plaintiff and Defendant.

    Areas of Expertise:
    • Biology
    • Botany
    • Chemistry
    • Ethics
    • History
    • Logic
    • Metaphysics
  • Rhetoric
  • Philosophy of Mind
  • Philosophy of Science
  • Physics
  • Poetics
  • Political Theory
  • Psychology
  • Zoology
  • Alex Babitsky
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    Experts.com is proud to announce the FIRST of its kind FREE Application for the iPhone, providing Users worldwide an Efficient, Effective and Economical way to find and retain the most knowledgeable Experts and Consultants for litigation, business consultations, new business development, research, breaking news and other projects.
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    Ewen Todd, PhD
    4182 Indian Glen Drive
    Okemos MI 48864
    USA
    phone: 517 347-4270
    ewen-todd-photo1.jpg
    Dr. Ewen Todd is a Food Safety Expert with over 45 years of knowledge and experience in general food safety and Food Microbiology Issues. Specifically, he has extensive experience the reporting and surveillance of Foodborne Disease, as well as development of analytical methods for identifying foodborne pathogens. As a result of his work with the industry and his knowledge of foodborne disease, Dr. Todd has influenced research programs and regulatory approaches taken by the Health Protection Branch of Health Canada. In the US, he held the position of Director of the National Food Safety and Toxicology Center and the Food Safety Policy Center at Michigan State University. A leader in microbial research, foodborne disease surveillance, costing of outbreaks, food safety policy, seafood toxins, standard setting, risk assessment, risk management and risk communication. He has worked in numerous countries educating and training, and collaborating to set up surveillance systems, food safety policies, regulations, and HACCP and other control strategies, including China, Cambodia, Japan, United Arab Emirates, Lebanon, Kuwait, Saudi Arabia, and Europe, as well as Canada and the USA. He is also familiar with food defense and food fraud issues, and waterborne disease.

    He is familiar with the US and Canadian food industry, both foodservice and food processing, HACCP, disease investigation, food and equipment contamination. Since leaving the Canadian government and entering academia and as a consultant, he has been expert witness in 25 cases in both the U.S. and Canada where foodborne illnesses have occurred. He has testified on the behalf of plaintiffs who suffered from E. coli O157:H7, Campylobacter, Salmonella, ciguatoxin fish poisoning, yeast, and unknown agents. He has also represented defendants in two illness cases. Therefore, his litigation services are available for both Plaintiff and Defense.

    Areas of Expertise
    • General Food Safety and Spoilage Issues
    • HACCP and GHP Systems
    • Standards for Poultry
    • Listeria Monocytogenes in Soft Cheeses
    • Standards for Poultry
    • Seafood Toxins
    • Food Workers
    • Investigation of Foodborne and Waterborne Illnesses
    • Foodborne Disease Surveillance Systems
    • Risk Assessment, Risk Management and Risk Governance
    • Safety of Aquaculture Systems
    • Norovirus in Elder Care and Other Facilities
    • Salmonella and Shigella in Schools and Child Care Centers
    • Salmonella in Tahini and Other Oil-based Foods
    • Escherichia coli O157:H7 in Leafy Greens
    • Staphylococcus aureus in Cheese, Clostridium botulinum in Canned or Preserved Food and Native American / Inuit Fermented Food
    • Listeria monocytogenes in Deli Meats and Soft Cheeses
    • Controlling Listeria monocytogenes in Ready-to-eat Foods
    • Hydrophobic Grid Membrane Filter Systems
    View Consulting Profile.
    9/26/2014 · Engineering
    Hand washing with soap is a practice that has long been recognized as a major barrier to the spread of disease in food production, preparation, and service and in health care settings, including hospitals, child care centers, and elder care facilities. Many of these settings present multiple opportunities for spread of pathogens within at-risk populations, and extra vigilance must be applied. Unfortunately, hand hygiene is not always carried out effectively, and both enteric and respiratory diseases are easily spread in these environments. Where water is limited or frequent hand hygiene is required on a daily basis, such as for many patients in hospitals and astronauts in space travel, instant sanitizers or sanitary wipes are thought to be an effective way of preventing contamination and spread of organisms among coworkers and others. Most concerns regarding compliance are associated with the health care field, but the food industry also must be considered.

    8/26/2014 · Engineering
    Alcohol compounds are increasingly used as a substitute for hand washing in health care environments and some public places because these compounds are easy to use and do not require water or hand drying materials. However, the effectiveness of these compounds depends on how much soil (bioburden) is present on the hands. Workers in health care environments and other public places must wash their hands before using antiseptics and/or wearing gloves. However, alcohol-based antiseptics, also called rubs and sanitizers, can be very effective for rapidly destroying some pathogens by the action of the aqueous alcohol solution without the need for water or drying with towels.

    7/22/2014 · Engineering
    During various daily activities at home and work, hands quickly become contaminated. Some activities increase the risk of finger contamination by pathogens more than others, such as the use of toilet paper to clean up following a diarrheal episode, changing the diaper of a sick infant, blowing a nose, or touching raw food materials. Many foodborne outbreak investigation reports have identified the hands of food workers as the source of pathogens in the implicated food. The most convenient and efficient way of removing pathogens from hands is through hand washing. Important components of hand washing are potable water for rinsing and soaps to loosen microbes from the skin. Hand washing should occur after any activity that soils hands and certainly before preparing, serving, or eating food.

    6/12/2014 · Food & Beverage
    The role played by food workers and other individuals in the contamination of food has been identified as an important contributing factor leading to foodborne outbreaks. To prevent direct bare hand contact with food and food surfaces, many jurisdictions have made glove use compulsory for food production and preparation. When properly used, gloves can substantially reduce opportunities for food contamination. However, gloves have limitations and may become a source of contamination if they are punctured or improperly used. Experiments conducted in clinical and dental settings have revealed pinhole leaks in gloves.

    5/8/2014 · Food & Beverage
    Contamination of food and individuals by food workers has been identified as an important contributing factor during foodborne illness investigations. Physical and chemical barriers to prevent microbial contamination of food are hurdles that block or reduce the transfer of pathogens to the food surface from the hands of a food worker, from other foods, or from the environment. In food service operations, direct contact of food by hands should be prevented by the use of barriers, especially when gloves are not worn. Although these barriers have been used for decades in food processing and food service operations, their effectiveness is sometimes questioned or their use may be ignored. Physical barriers include properly engineered building walls and doors to minimize the flow of outside particles and pests to food storage and food preparation areas; food shields to prevent aerosol contamination of displayed food by customers and workers; work clothing designated strictly for work (clothing worn outdoors can carry undesirable microorganisms, including pathogens from infected family members, into the work environment); and utensils such as spoons, tongs, and deli papers to prevent direct contact between hands and the food being prepared or served. Money and ready-to-eat foods should be handled as two separate operations, preferably by two workers.

    4/8/2014 · Food & Beverage
    This article, the sixth in a series reviewing the role of food workers in foodborne outbreaks, describes the source and means of pathogen transfer. The transmission and survival of enteric pathogens in the food processing and preparation environment through human and raw food sources is reviewed, with the main objective of providing information critical to the reduction of illness due to foodborne outbreaks. Pathogens in the food preparation area can originate from infected food workers, raw foods, or other environmental sources. These pathogens can then spread within food preparation or processing facilities through sometimes complex pathways and may infect one or more workers or the consumer of foods processed or prepared by these infected workers.

    2/28/2014 · Food & Beverage
    In this article, the fifth in a series reviewing the role of food workers in foodborne outbreaks, background information on the routes of infection for food workers is considered. Contamination most frequently occurs via the fecal-oral route, when pathogens are present in the feces of ill, convalescent, or otherwise colonized persons. It is difficult for managers of food operations to identify food workers who may be excreting pathogens, even when these workers report their illnesses, because workers can shed pathogens during the prodrome phase of illness or can be long-term excretors or asymptomatic carriers.

    1/27/2014 · Food & Beverage
    In this article, the fourth in a series reviewing the role of food workers in foodborne outbreaks, background information on the presence of enteric pathogens in the community, the numbers of organisms required to initiate an infection, and the length of carriage are presented. Although workers have been implicated in outbreaks, they were not always aware of their infections, either because they were in the prodromic phase before symptoms began or because they were asymptomatic carriers.

    4/16/2013 · Food & Beverage
    In this article, the third in a series of several reviewing the role of food workers in 816 foodborne outbreaks, factors contributing to outbreaks and descriptions of different categories of worker involvement are discussed.

    3/13/2013 · Food & Beverage
    This article is the second in a series of several by members of the Committee on the Control of Foodborne Illness of the International Association of Food Protection, and it continues the analysis of 816 outbreaks where food workers were implicated in the spread of foodborne disease.

    1/23/2013 · Food & Beverage
    Food workers in many settings have been responsible for foodborne disease outbreaks for decades, and there is no indication that this is diminishing. The Committee on Control of Foodborne Illnesses of the International Association for Food Protection was tasked with collecting and evaluating any data on worker-associated outbreaks.

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    Thomas Dydek, PhD, DABT, PE
    Principal Toxicologist
    5208 Avenue H
    Austin TX 78751
    USA
    phone: 512-280-5477 / Cell: 512-663-7836
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    Thomas Dydek, PhD, DABT, PE, specializes in the evaluation of the potential for chemical exposures to affect human health and welfare. He is a Board-Certified Toxicologist (Diplomate of the American Board of Toxicology, D.A.B.T.) with a Ph.D. in Environmental Toxicology. He also did a post-doctoral fellowship in Toxicology and is a Licensed Professional Engineer, specializing in the area of environmental engineering.

    Dr. Dydek is a toxicology expert in evaluating the potential human health effects associated with exposure to toxic chemicals such as asbestos, benzene, carbon monoxide, formaldehyde, metals, oil and gas fracking chemicals, pesticides, petroleum products, silica, solvents, toxic gases, and many other chemicals in the environment and in occupational settings. He also evaluates exposures to microbial agents such as mold and bacteria.

    Dr. Dydek has training and experience in preparing evaluating the health effects of industrial and environmental chemical exposures and tobacco smoking, conducting state of the art toxicological reviews for alternative fuels registrations and other projects, preparing product safety evaluations, and doing chemical exposure assessments.

    Litigation Support - Dr. Dydek has provided expert witness services in more than 250 toxic tort cases and regulatory agency Public Hearings. He has given 50 depositions, and testified at trial 10 times over the past 20 years. His work in these cases has included the evaluation of the health risks of chemical exposures and exposures to microbial agents. These exposures have occurred in the community, in occupational settings, and in other indoor environments.

    Areas of Expertise:
    • Organic Chemicals and Solvents
    • Toxic Gases
    • Pesticides
    • Metals / Inorganic Chemicals
  • Petroleum Products
  • Oil & Gas Fracking Emissions
  • Health Effects of Implanted Medical Devices
  • Product Safety Evaluation
  • View Dr. Dydek's Consulting Profile.
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    Dean A. Stetler & Associates Inc.
    Dean A. Stetler, PhD
    4212 Catalina Drive
    Lawrence KS 66049
    USA
    phone: 785-331-8090
    Dean-Stetler-DNA-Forensics-Expert-Photo.jpg
    Dean A. Stetler, PhD, has over 30 years of experience in the fields of Microbiology and Molecular Biology. For the past 20 years, he has specialized in Forensic DNA Profiling.

    For almost three decades, Dr. Stetler has served as an Associate Professor in the Department of Molecular Biosciences at the University of Kansas. He has earned three United States patents including an Anti-RNA Polymerase I Antibody Test for the Diagnosis of Rheumatological Diseases, a second for Methods of Diagnosing and Monitoring Rheumatic Diseases, and a third for Assays for Monitoring the Severity of Autoimmune Diseases.

    Litigation Support - Dr. Stetler has consulted with defense attorneys in more than 250 criminal cases over the past 20 years, mainly in the area of DNA Profiling but also for DUI and Drug-relate cases. He has testified in state and federal courts more than 100 times.

    Dr. Stetler has testified in DUI and drug-related cases resulting in reduced sentences or the dropping of charges. He has also provided analyses that are not readily available, such as differentiation between venous and menstrual blood and determinations of a client's MAOA genotype.

    Dr. Stetler is particularly skilled at educating attorneys, judges, and jury members so that they understand exactly what the results of the DNA testing mean. From there, he can often offer alternative explanations of these results which can, in many cases, result in acquittal.
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    Lydia M. Contreras, PhD
    Principal Investigator
    Dept. of Chemical Engineering, UT-Austin
    Austin TX 78757
    USA
    phone: 512-471-2453
    Lydia-Contreras-Biotechnology-Expert-Photo.jpg
    Lydia M. Contreras, PhD, is a Chemical and Biomolecular Engineer and Principal Investigator at The University of Texas at Austin Department of Chemical Engineering and the Institute for Cell & Molecular Biology (ICMB).

    Dr. Contreras was an NIH Postdoctoral Fellow of Infectious Diseases elected by the Division of Developmental Genetics and Bioinformatics at Wadsworth Center-New York State Dept. of Health in Albany, NY. She received training at the world renowned RNA institute in Vienna in Nucleic Acid Biochemistry.

    Dr. Contreras' research focuses on innovating in vivo technologies to understand and design cellular regulation patterns in living systems (e.g. microbes and human cell models) for enhanced production of chemicals, as well as for novel biomarkers of environmental cellular toxicity and biomedical applications. She and her team combine molecular engineering, classic genetics, and biochemical approaches with high-throughput RNA sequencing, proteomics, and computational methods to engineer complex regulatory networks coupled to environmental stress responses. Dr. Contreras holds two patents for her work. Current efforts include:
    • Discovery of novel regulatory RNAs from ethanologenic bacteria to engineer higher cellular tolerance to alcohols and high-value chemicals
    • Discovery of regulatory networks in radio resistant bacteria for novel biosensory technologies
    • Engineering of novel biosensors for assaying the effect of environmental agents in human health
    Litigation Support - Dr. Contreras works at the interface of RNA Biology and Protein Engineering to solve complex problems in medicine and biotechnology. She offers expert witness services to attorneys representing plaintiff and defendant.

    Areas of Expertise:
    • Toxicology
    • Environmental Toxicology
    • Cellular Toxicology
    • Biomedical Engineering
  • Biomolecular Engineering
  • Genetic Studies
  • RNAs / Proteins
  • Computational Modeling
  • View Dr. Lydia Contreras' Consulting Profile.
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    Dr. Olen Brown, PhD
    Toxicology / Medical Sciences / Environmental Sciences
    527 North Cedar Lake Drive, West
    Columbia MO 65203
    USA
    phone: 573-449-7444
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    Dr. Olen R. Brown, PhD is a board certified Diplomate in Toxicology and member of the standards of knowledge committee. He has the PhD in Microbiology With over 35 years of experience in Life Sciences and more than 150 publications. Dr. Brown specializes in complex, multidisciplinary cases, and he focuses on Human Medicine using the disciplines of bacteriology, virology, immunology, epidemiology, biochemistry, physiology, analytical chemistry, toxicology, and environmental sciences.

    Dr. Brown has provided litigation support services for 180+ cases in 25 states and 1 in Canada. Dr. Brown has served in Plaintiff/Defense, and Criminal/Civil cases. He has testified in 20 trials and 31 depositions. Dr. Brown's expertise include: cause-and-effect determination after medical record review; risk assessment and causation determination from toxic exposure; evaluation of the therapeutic and harmful effects of ethical drugs, antibiotics, alcohol, and drugs of abuse; the toxicity of solvents, pesticides, heavy metals, ozone, carbon monoxide, particulates, and most organic chemicals for most organ systems including the lung (Asthma, COPD, RADS) and the brain (Parkinson's), Dr. Brown has evaluated human medical and veterinary medical devices and pharmaceuticals for safety.

    Areas of Expertise
    • Toxicology (General, Academic, Pharmacologic, Forensic, Regulatory)
    • Medical Sciences - Microbiology, Immunology, Bacteriology, Virology, Cell Physiology, Infectious Diseases, Cancer, Allergy, Mechanisms of Diseases
    • Microbiology - Medical, Molecular Biology, Veterinary Medical, Environmental
    • Environmental Biology - Hazardous Wastes; Air, Water and Soil Pollution
    • Chemistry - Biochemistry, Analytical, Organic
    • Veterinary Sciences - Cell Physiology, Mechanisms of Disease
    View Dr. Brown's Consulting Profile.
    2/17/2002 · Expert Witnessing
    Attorneys use experts in two ways. First is the traditional use of an expert as a witness in court. In this role, scientists, business people, or others with technical knowledge are retained by attorneys primarily for their opinions (oral, written, or both), ultimately to be given at deposition and in civil and criminal courts. Second, the expert may be used as a pre-trial consultant or more specifically as an undisclosed consultant

    Olen R. Brown, PhD
    "Miracles" reveals truth from Scripture, science and life. Everything that is or was or is to come is part of God's miracle. Science says that nothing is miraculous- Time and Chance created the universe with no meaning or purpose. God's universe has great meaning extending from the stars to atoms and to you. What we believe about miracles can be a source of great joy or missed joy in our lives. Dr. Brown, a Christian and author of over 100 scientific papers, has coined a new word, synscicretism, to call attention to the doctrine that today elevates science above religion. Science works best for the great "how" questions, but poorly for the great "why" of all things.
    Olen R. Brown, PhD
    This authoritative guide is designed to achieve a synthesis of understanding and effort between case science and case law. It examines all stages of attorney/expert interaction from the initial interview to post-trial evaluation.
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    Frederick Passman
    President
    PO Box 3659
    Princeton NJ 08543-3659
    USA
    phone: 609-716-0200
    fred-passman-photo.jpg
    Dr. Frederick Passman, PhD is a Certified Metalworking Fluids Specialist with over 35 years experience in Environmental & Industrial Microbiology. His company, Biodeterioration Control Associates, Inc. (BCA) provides clients with unparalleled expertise in Microbial Contamination Control.

    Dr. Passman offers a complete range of consulting services relating to microbial contamination control in the metalworking, fuel, petroleum production and water treatment (heat exchange) industries.

    Areas of Expertise:
    • Industrial microbial ecology
    • Root cause analysis of microbial contamination
    • Industrial process system biodeterioration
    • Microbially influenced corrosion
    • Health effects of exposure to bioaerosols in the industrial environment
    View Consulting Profile.
    6/3/2014 · Microbiology
    Despite their history of successful use as fuel system disinfectants and fuel preservatives, antimicrobial pesticide use faces increasing restrictions due to both regulatory control and public concerns. A variety of non-chemical treatments have been used with varying degrees of success to disinfect non-fuel fluids and to at least partially inhibit biofilm development on infrastructure surfaces. Promoters of one technology have claimed successful fuel disinfection and fuel-tank fouling prevention. This paper will review a range of non-chemical treatment technologies and will present the results of preliminary evaluations of several technologies that were tested on Jet A fuels that had been challenged with either Pseudomonas aeruginosa or Hormoconis resinae. Data are presented on treatment impact on adenosine triphosphate (ATP) concentration, culturability and live/dead direct counts in Jet A-1 and on glass microcosm surfaces.

    4/29/2014 · Microbiology
    Several of the major points that I made in 1995 need further consideration, based on both changes in the regulatory climate and field experience with microbial contamination control in surface transportation markets.

    3/25/2014 · Microbiology
    Smaller retailers depend on the expertise and reputations of their suppliers. Traditionally, refiners' attitudes about fuel were that if it met specifications at the time of sales, but failed later, the problem belonged to the owner at that time. As we begin to see impact of the Clean Air Act-driven fuel reformulations, increased consumer awareness and increased susceptibility to contamination, all market participants are going to have to cooperate to ensure that the customer with the engines gets consistently good fuel.

    2/20/2014 · Metallurgy
    Adenosine triphosphate (ATP) assays have been used to quantify bioburdens (biomass) in low-organic-compoundcontent fluids (freshwater, seawater, cooling tower water, and similar fluids) since the early 1950s. The original methodology was labor intensive and required considerable laboratory skill. Over the past half-century, the protocol has been simplified substantially, but until recently, chemical interferences made it impractical to use the ATP test in metalworking fluids (MWF).

    1/17/2014 · Microbiology
    Quantification of adenosine triphosphate (ATP) in fuels and fuel-associated waters was first presented at the Technische Akademie Esslingen 6th International Fuels Colloquium in 2007. At the time, two issues limited the overall usefulness of ATP as a test parameter: inability to differentiate between bacteria and fungi and inability to detect dormant microbes.

    12/11/2013 · Microbiology
    Three alternative, non-conventional test methods are evaluated for their ability to detect and quantify bioburdens in fuel and bottom-water samples. Two of the parameters, catalase activity and adenosine triphosphate (ATP) concentration have been used previously. This is the first report of the use of fluorescence polarization (FP) technology for fuel and fuel-associated water testing.

    11/6/2013 · Microbiology
    In August, 2012 a member of the LinkedIn Metalworking Fluids Group asked for a recommendation for the best biocide/fungicide package to be used to protect a semisynthetic metalworking fluid from biodeterioration. His posting has generated nearly 50 responses. Some of the suggestions were clearly based on limited experience; experience with few MWF, a limited number of MWF systems or both. I posted a number of comments to the string and have compiled them in this article.

    10/9/2013 · Microbiology
    Industrial lubricants are increasingly providing a rich environment for microbial growth and proliferation. Most of the knowledge of lubricant biodeterioration has been extrapolated from field and laboratory experience with metalworking fluids. Compositionally more complex than most lubricants, metalworking fluids are either solutions or emulsions of 5 to 10% coolant concentrate in water.

    9/10/2013 · Microbiology
    As industry seeks to improve the economy of plant operation, responsible managers are paying more attention to factors that affect efficient and reliable operation of their facilities. One area of attention that can payoff handsomely is the control of microbiological activity in coolant systems. Many engineers and plant operations personnel are just beginning to appreciate the effects on their machining operations caused by their plant "biosphere," which contains bacteria, fungus, mold and other contaminants.

    8/14/2013 · Microbiology
    Mounting concerns over operational and waste management costs, as well as the quality and safety of the work environment have provided increased impetus for both formulators and end-users to strive to improve coolant life. There are a number of alterative approaches to achieving this objective. In this paper, the concepts of bioresistance and biostatic are defined and compared.

    7/29/2013 · Microbiology
    This case study reports culture and acid-fast bacteria direct counts from 99 MWF samples received for microbiological testing at Warren, Mich.-based Biosan Laboratories between December 2006 and September 2007.

    7/11/2013 · Microbiology
    All metalworking-fluid formulations share the common problem of susceptibility to microbial attack. This is not all bad news, since we need the used dilute fluid to be biodegradable for disposal purposes.

    6/19/2013 · Microbiology
    During the past decade we have witnessed a tumultuous debate over the disease risks posed by microbes that inhabit metalworking fluid (MWF) systems. Not infrequently, that debate has occurred in the absence of satisfactory data.

    5/22/2013 · Microbiology
    Root cause analysis is the process used to identify the fundamental cause for an undesirable condition. Premature filter failure due either to plugging or other mechanism is generally perceived to be an acute problem.

    4/10/2013 · Microbiology
    Since there are no microbial standard for the fuels, microbial contamination remained undetected inless sli9me started to plug the filters.

    3/7/2013 · Fuel Systems
    An array of microcosms containing California Air Resources Board (CARB)-compliant, oxygenated S7-octane gasoline over nutrient-amended water was monitored over a 7-month period. The array included tiplicate microcosms of each of four conditions:

    2/15/2013 · Fuel Systems
    Microbes in Fuel Retailing was the last in my series of NPN articles. In it, I presented a more global perspective on the key issues that I had addressed in earlier articles. Since 1999 there have been some watershed changes in the industry since it was written. The most important ones all involve dramatic changes in fuel product composition.

    12/12/2012 · Fuel Systems
    Although the documentation of fuel biodeterioration dates back to the late 19th century, general recognition of the value of microbial contamination control evolved slowly until the 1980's. Since the early 1980's a number of factors have converged to stimulate greater interest in fuel and fuel system biodeterioration.

    10/5/2012 · Fuel Systems
    Adenosine Triphosphate (ATP) is an excellent biomarker present in all living cells. During the past several years, several ATP test methods have been developed to overcome interferences that have historically made ATP testing of fuels impractical.

    7/26/2012 · Microbiology
    Metalworking fluids provide an excellent environment for the growth and proliferation of a variety of bacteria and fungi. Historically, the incidence of infectious disease outbreaks at metalworking facilities has been rare. Consequently the primary focus of microbial contamination control efforts has been to prevent fluid biodeterioration.

    5/21/2012 · Fuel Systems
    Between 1994 and 1999, I had the opportunity to write a series of articles for National Petroleum News (NPN). Each article focused on one aspect of the connection between microbial contamination and operational problems in fuel retail systems.

    Frederick J. Passman, PhD
    This new ASTM manual brings together the various test procedures that technicians need to diagnose the contamination in fuels and fuel systems. It also suggests the means for detection and control of microbial contamination.
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