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Physical Study by Surface Characteriza4ons of Sarin Sensor on the Basis of Chem
Physical Study by Surface Characterizaons of Sarin Sensor on the Basis of Chemically Func4onalized Silicon Nanoribbon Field Effect Transistor K. Smaali1,§, D. Guérin1, V. Passi1, L. Ordronneau2, A. Carella2, T. Mélin1, E. Dubois1, D. Vuillaume1, J.P. Simonato2 and S. Lenfant1,* 1 IEMN, CNRS, Avenue Poincaré, Villeneuve d'Ascq, F-59652 cedex, France. 2. CEA, LITEN/DTNM/SEN/LSIN, Univ. Grenoble Alpes, MINATEC Campus, F-38054 Grenoble, France. ABSTRACT : Surface characteriZa[ons of an organophosphorus (OP) gas detector based on chemically func[onaliZed silicon nanoribbon field-effect transistor (SiNR-FET) were performed by Kelvin Probe Force Microscopy (KPFM) and ToF-SIMS, and correlated with changes in the current-voltage characteris[cs of the devices. KPFM measurements on FETs allow (i) to inves[gate the contact poten[al difference (CPD) distribu[on of the polariZed device as func[on of the gate voltage and the exposure to OP traces and; (ii) to analyZe the CPD hysteresis associated to the presence of mobile ions on the surface. The CPD measured by KPFM on the silicon nanoribbon was corrected due to side capacitance effects in order to determine the real quan[ta[ve surface poten[al. Comparison with macroscopic Kelvin probe (KP) experiments on larger surfaces was carried out. These two approaches were quan[ta[vely consistent. An important increase of the CPD values (between + 399 mV and + 302 mV) was observed aeer the OP sensor graeing, corresponding to a decrease of the work func[on, and a weaker varia[on aeer exposure to OP (between - 14 mV and - 61 mV) was measured. -
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ASM 2013 Countermotions.Pdf
Christiane Schnura, Schweidnitzer Str. 41, 40231 Düsseldorf Christiane Schnura, Schweidnitzer Str. 41, 40231 Düsseldorf Bayer Aktiengesellschaft Gebäude Q 26 (Rechtsabteilung) Kaiser-Wilhelm-Allee 51368 Leverkusen Annual Stockholders’ Meeting on April 26, 2013 I hereby notify you that I will oppose the proposals of the Board of Management and the Supervisory Board as regards Items 2 and 3 of the Agenda, and will induce the other stockholders to vote in favor of the following countermotions. Countermotion to Item 2: The actions of the members of the Board of Management are not ratified The BAYER Group is responsible for many environmental and social problems. The Board of Management bears responsibility for this, and for this reason its actions should not be ratified. The following is a selection of current problem areas. Labeling of genetically engineered products BAYER contributed USD 2 million to a campaign operated by chemical corporations in the United States which resulted in an initiative to have genetically engineered food products labeled accordingly being defeated. Proposition 37, an initiative put forward in the federal state of California which called for mandatory European-style labeling, went to the ballot on Presidential Election Day, November 6. The companies invested more than USD 40 million in their advertising campaign, roughly ten times more than the proponents of the initiative. This is a classic example of double standards. In Europe it goes without saying that genetically modified ingredients are declared on the labeling of a food product. In the United States, on the other hand, spurious arguments are put forward to prevent labeling of this kind. -
Historical Perspectives on Apple Production: Fruit Tree Pest Management, Regulation and New Insecticidal Chemistries
Historical Perspectives on Apple Production: Fruit Tree Pest Management, Regulation and New Insecticidal Chemistries. Peter Jentsch Extension Associate Department of Entomology Cornell University's Hudson Valley Lab 3357 Rt. 9W; PO box 727 Highland, NY 12528 email: [email protected] Phone 845-691-7151 Mobile: 845-417-7465 http://www.nysaes.cornell.edu/ent/faculty/jentsch/ 2 Historical Perspectives on Fruit Production: Fruit Tree Pest Management, Regulation and New Chemistries. by Peter Jentsch I. Historical Use of Pesticides in Apple Production Overview of Apple Production and Pest Management Prior to 1940 Synthetic Pesticide Development and Use II. Influences Changing the Pest Management Profile in Apple Production Chemical Residues in Early Insect Management Historical Chemical Regulation Recent Regulation Developments Changing Pest Management Food Quality Protection Act of 1996 The Science Behind The Methodology Pesticide Revisions – Requirements For New Registrations III. Resistance of Insect Pests to Insecticides Resistance Pest Management Strategies IV. Reduced Risk Chemistries: New Modes of Action and the Insecticide Treadmill Fermentation Microbial Products Bt’s, Abamectins, Spinosads Juvenile Hormone Analogs Formamidines, Juvenile Hormone Analogs And Mimics Insect Growth Regulators Azadirachtin, Thiadiazine Neonicotinyls Major Reduced Risk Materials: Carboxamides, Carboxylic Acid Esters, Granulosis Viruses, Diphenyloxazolines, Insecticidal Soaps, Benzoyl Urea Growth Regulators, Tetronic Acids, Oxadiazenes , Particle Films, Phenoxypyrazoles, Pyridazinones, Spinosads, Tetrazines , Organotins, Quinolines. 3 I Historical Use of Pesticides in Apple Production Overview of Apple Production and Pest Management Prior to 1940 The apple has a rather ominous origin. Its inception is framed in the biblical text regarding the genesis of mankind. The backdrop appears to be the turbulent setting of what many scholars believe to be present day Iraq. -
Decontamination of Agent Yellow, a Lewisite and Sulfur Mustard Mixture
EPA 600/R-14/436 | March 2015 | www.epa.gov/research Decontamination of Agent Yellow, a Lewisite and Sulfur Mustard Mixture Office of Research and Development National Homeland Security Research Center Decontamination of Agent Yellow, a Lewisite and Sulfur Mustard Mixture Evaluation Report National Homeland Security Research Center Office of Research and Development U.S. Environmental Protection Agency Research Triangle Park, NC 27711 ii Disclaimer The United States Environmental Protection Agency through its Office of Research and Development’s National Homeland Security Research Center funded and managed the research described here under EPA Contract Number EP-C-10-001, Work Assignment Number 4-28 with Battelle. This report has been peer and administratively reviewed and has been approved for publication as an Environmental Protection Agency report. It does not necessarily reflect views of the Environmental Protection Agency. No official endorsement should be inferred. The Environmental Protection Agency does not endorse the purchase or sale of any commercial products or services. Questions concerning this document or its application should be addressed to: Lukas Oudejans, Ph.D. Decontamination and Consequence Management Division National Homeland Security Research Center Office of Research and Development U.S. Environmental Protection Agency (MD-E343-06) 109 T.W. Alexander Drive Research Triangle Park, NC 27711 Phone: 919-541-2973 Fax: 919-541-0496 E-mail: [email protected] iii Acknowledgments The following individuals are acknowledged -
The Ins and Outs of Dechlorination
The Ins and Outs of Dechlorination If you plan on using a municipal water supply for chlorine is added to water, it will first react with growing fish you will require a dechlorination step any reducing agents, including any ammonia that in your water treatment process. Most municipal may be present. Hypochlorous acid reacts with water systems use chlorine or chloramine (a com- ammonia to form chloramines as follows: bination of chlorine and ammonia) to render the water safe for human consumption. While rela- HOCL + NH3 _ H2O + NH2Cl (monochloramine) tively harmless to humans in minute amounts, HOCL + NH2Cl _ H2O + NHCl2 (dichloramine) chlorine can be deadly to fish. In order to under- HOCL + NHCl2 _ H2O + NCl3 (trichloramine) BY: CARLA MACQUARRIE stand how to dechlorinate water, there must first AND SEAN WILTON be an understanding of how and why chlorine is The formation of chloramines is also dependent used as a disinfecting agent. on pH and temperature, as well as on the concen- tration of ammonia. With the added presence of Chlorine is water soluble gas (7160 mg/L these chloramines, the available chlorine is at 20°C and 1atm) that hydrolyzes rapidly referred to as combined available chlorine (CAC). to form hypochlorous acid (HOCl). This When these reactions are complete, residual reaction forms the basis for the applica- chlorine will accumulate, either in the form of FAC tion of chlorine as a disinfectant and oxi- or CAC. Total residual chlorine refers to the sum of dant as follows: the free and combined forms of residual chlorine. As a disinfectant, the FAC component is more Cl2 + H20 —> HOCl + H+ + Cl- effective than the CAC – this is because chlo- ramines are considered to have only a moderate The by-product, hypochlorous acid(HOCl) biocidal activity against bacteria and a low bioci- ionizes to produce the hypochlorite (OCl-) dal activity against viruses and cysts. -
Hypochlorous Acid Handling
Hypochlorous Acid Handling 1 Identification of Petitioned Substance 2 Chemical Names: Hypochlorous acid, CAS Numbers: 7790-92-3 3 hypochloric(I) acid, chloranol, 4 hydroxidochlorine 10 Other Codes: European Community 11 Number-22757, IUPAC-Hypochlorous acid 5 Other Name: Hydrogen hypochlorite, 6 Chlorine hydroxide List other codes: PubChem CID 24341 7 Trade Names: Bleach, Sodium hypochlorite, InChI Key: QWPPOHNGKGFGJK- 8 Calcium hypochlorite, Sterilox, hypochlorite, UHFFFAOYSA-N 9 NVC-10 UNII: 712K4CDC10 12 Summary of Petitioned Use 13 A petition has been received from a stakeholder requesting that hypochlorous acid (also referred 14 to as electrolyzed water (EW)) be added to the list of synthetic substances allowed for use in 15 organic production and handling (7 CFR §§ 205.600-606). Specifically, the petition concerns the 16 formation of hypochlorous acid at the anode of an electrolysis apparatus designed for its 17 production from a brine solution. This active ingredient is aqueous hypochlorous acid which acts 18 as an oxidizing agent. The petitioner plans use hypochlorous acid as a sanitizer and antimicrobial 19 agent for the production and handling of organic products. The petition also requests to resolve a 20 difference in interpretation of allowed substances for chlorine materials on the National List of 21 Allowed and Prohibited Substances that contain the active ingredient hypochlorous acid (NOP- 22 PM 14-3 Electrolyzed water). 23 The NOP has issued NOP 5026 “Guidance, the use of Chlorine Materials in Organic Production 24 and Handling.” This guidance document clarifies the use of chlorine materials in organic 25 production and handling to align the National List with the November, 1995 NOSB 26 recommendation on chlorine materials which read: 27 “Allowed for disinfecting and sanitizing food contact surfaces. -
Warfare Agents for Modeling Airborne Dispersion in and Around Buildings
LBNL-45475 ERNEST ORLANDO LAWRENCE BERKELEY NATIn NAL LABORATORY Databaseof Physical,Chemicaland ToxicologicalPropertiesof Chemical and Biological(CB)WarfitreAgentsfor ModelingAirborneDispersionIn and AroundBuildings TracyThatcher,RichSextro,andDonErmak Environmental Energy Technologies Division DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of Catifomia, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of anY information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommend at i on, or favoring by the United States Government or any agency thereof, or The Regents of the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof, or The Regents of the University of California. Ernest Orlando Lawrence Berkeley National Laboratory is an equal opportunity employer. DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced -
Medicine with Deeper, More Biochemical Conception Of
Edinburgh Medical Journal May 1951 APPLICATIONS of chemical defence research IN MEDICINET? By Professor R. A. PETERS to be invited It is a great responsibility, as well as a great honour, to Cameron lecturers give this lecture ; and I expect that with other I this ancient seat of share a sense of awe upon standing here in is learning. For me it is an awe tinged with much feeling (it possible that this is partly because some forebears of my mother came from near to recent of the this ; it is in part due the perusal city) perhaps " address here Froude in on the Times of John Knox, given by 1865 " " entitled Influence of the Reformation upon the Scottish Character ; this address drives home to the Sassenach the sterner stuff of which all of us in the the Scots are made ; but I really think it is more that as south, even if we come as I do from a Medical School as ancient the Hospital of St Bartholomew, know full well that Edinburgh stands high indeed in the world of Medical Schools as Scotland itself stands in the world of intellect. Elsewhere I have discussed fully the historical background of our for me back researches upon Chemical Defence substances, which go to World War I.23 Again in my Dixon lecture,24 I have indicated some of the interest for pharmacology. The outlook for medicine has not the been reviewed so far. Therefore I propose to-day to discuss of British influence upon the future of therapeutics of the discovery anti-lewisite and of some of the other researches upon war gas but substances ; and to consider not only the leads towards therapy, the possible newer trends given to medicine itself. -
Potential Applicability of Assembled Chemical Weapons Assessment Technologies to RCRA Waste Streams and Contaminated Media EPA 542-R-00-004 August 2000
United States Solid Waste and EPA 542-R-00-004 Environmental Protection Emergency Response August 2000 Agency (5102G) www.epa.gov clu-in.org EPA Potential Applicability of Assembled Chemical Weapons Assessment Technologies to RCRA Waste Streams and Contaminated Media EPA 542-R-00-004 August 2000 POTENTIAL APPLICABILITY OF ASSEMBLED CHEMICAL WEAPONS ASSESSMENT TECHNOLOGIES TO RCRA WASTE STREAMS AND CONTAMINATED MEDIA U.S. Environmental Protection Agency Office of Solid Waste and Emergency Response Technology Innovation Office Washington, DC 20460 Potential Applicability of ACWA Technologies to RCRA Waste Streams and Contaminated Media NOTICE AND DISCLAIMER This document was prepared by the U.S. Environmental Protection Agency’s Technology Innovation Office with support under EPA Contract Number 68-W-99-003. It is intended to raise the awareness of the technologies included in the Assembled Chemical Weapons Assessment (ACWA) program, and presents an overview of each technology, including its applicability, performance, and other factors. Information about the technologies was obtained from the technology providers. No testing or evaluation was conducted by EPA during preparation of this document, and an independent assessment of this information was beyond EPA’s scope. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. For more information about this project, please contact: John Kingscott, U.S. Environmental Protection Agency, Technology Innovation Office, Ariel Rios Building, 1200 Pennsylvania Avenue, N.W. (MS 5102G), Washington, D.C., 20460; (703) 603-7189; e-mail: [email protected]. This document may be obtained from EPA’s web site at www.epa.gov/tio, or at clu-in.org. -
AASLD PRACTICE GUIDELINES Diagnosis and Management of Autoimmune Hepatitis
AASLD PRACTICE GUIDELINES Diagnosis and Management of Autoimmune Hepatitis Michael P. Manns,1 Albert J. Czaja,2 James D. Gorham,3 Edward L. Krawitt,4 Giorgina Mieli-Vergani,5 Diego Vergani,6 and John M. Vierling7 This guideline has been approved by the American ment on Guidelines;3 and (4) the experience of the Association for the Study of Liver Diseases (AASLD) authors in the specified topic. and represents the position of the Association. These recommendations, intended for use by physi- cians, suggest preferred approaches to the diagnostic, 1. Preamble therapeutic and preventive aspects of care. They are intended to be flexible, in contrast to standards of Clinical practice guidelines are defined as ‘‘systemati- care, which are inflexible policies to be followed in ev- cally developed statements to assist practitioner and ery case. Specific recommendations are based on rele- patient decisions about appropriate heath care for spe- vant published information. To more fully characterize 1 cific clinical circumstances.’’ These guidelines on the quality of evidence supporting the recommenda- autoimmune hepatitis provide a data-supported tions, the Practice Guidelines Committee of the approach to the diagnosis and management of this dis- AASLD requires a class (reflecting benefit versus risk) ease. They are based on the following: (1) formal and level (assessing strength or certainty) of evidence review and analysis of the recently-published world lit- to be assigned and reported with each recommenda- erature on the topic [Medline search]; (2) American tion.4 The grading system applied to the recommenda- College of Physicians Manual for Assessing Health tions has been adapted from the American College of 2 Practices and Designing Practice Guidelines; (3) Cardiology and the American Heart Association Prac- guideline policies, including the AASLD Policy on the tice Guidelines, and it is given below (Table 1). -
Nerve Agent - Lntellipedia Page 1 Of9 Doc ID : 6637155 (U) Nerve Agent
This document is made available through the declassification efforts and research of John Greenewald, Jr., creator of: The Black Vault The Black Vault is the largest online Freedom of Information Act (FOIA) document clearinghouse in the world. The research efforts here are responsible for the declassification of MILLIONS of pages released by the U.S. Government & Military. Discover the Truth at: http://www.theblackvault.com Nerve Agent - lntellipedia Page 1 of9 Doc ID : 6637155 (U) Nerve Agent UNCLASSIFIED From lntellipedia Nerve Agents (also known as nerve gases, though these chemicals are liquid at room temperature) are a class of phosphorus-containing organic chemicals (organophosphates) that disrupt the mechanism by which nerves transfer messages to organs. The disruption is caused by blocking acetylcholinesterase, an enzyme that normally relaxes the activity of acetylcholine, a neurotransmitter. ...--------- --- -·---- - --- -·-- --- --- Contents • 1 Overview • 2 Biological Effects • 2.1 Mechanism of Action • 2.2 Antidotes • 3 Classes • 3.1 G-Series • 3.2 V-Series • 3.3 Novichok Agents • 3.4 Insecticides • 4 History • 4.1 The Discovery ofNerve Agents • 4.2 The Nazi Mass Production ofTabun • 4.3 Nerve Agents in Nazi Germany • 4.4 The Secret Gets Out • 4.5 Since World War II • 4.6 Ocean Disposal of Chemical Weapons • 5 Popular Culture • 6 References and External Links --------------- ----·-- - Overview As chemical weapons, they are classified as weapons of mass destruction by the United Nations according to UN Resolution 687, and their production and stockpiling was outlawed by the Chemical Weapons Convention of 1993; the Chemical Weapons Convention officially took effect on April 291997. Poisoning by a nerve agent leads to contraction of pupils, profuse salivation, convulsions, involuntary urination and defecation, and eventual death by asphyxiation as control is lost over respiratory muscles.