Sample records for arsonates

  1. Arson: a growing inferno. (United States)

    Jayaraman, Anand; Frazer, John


    In a series of 34 arsonists, our survey compares the changing trends in arson to an earlier study carried out ten years ago in the same region in the UK by Rix (1994). The survey is based on pre-trial court reports done by the second author only. Fire-setting offending was predominantly seen in the young male (18-32). Fire-setting started as early as age seven and was seen as late as 63 years of age. More than half of the subjects received some form of family support. At least one third had an ICD-10 (WHO, 1992) diagnosable mental disorder and more than half were diagnosed with a psychiatric disorder during the time of reporting. A third of the subjects had a personality disorder diagnosis prior to reporting and another third had disordered personality traits established during the time of reporting. More than half had a psychological motive. Eleven per cent started a fire for excitement with only one for revenge. A third of the subjects were first time arsonists. Sixty-five per cent of arson involved building damage and all the 34 subjects were under the influence of alcohol prior to and during the act of arson. Additionally, there was cannabis use in nearly half of the subjects. Opioids and poly substance abuse were seen in a third of subjects. With the extent of financial and social burden along with risks, attention should be focused on accessing these individuals early to preventing recidivism. More research needs to be undertaken to identify the psychological motives behind fire-setting and to look into the drugs and alcohol problems amongst the younger age groups.

  2. Arson in review. From profit to pathology. (United States)

    Geller, J L


    Arson is a crime committed by thousands of people throughout our nation for nearly every reason, justification or excuse known to mankind ... Arson is one of the easiest crimes to commit but the hardest to prevent or prove ... Arson is a crime which involves little skill, as the weapon used is legally carried and too readily available ... Unlike many other covert criminal activities, the impact of increased major arsons has a direct visible effect on the lives of the average citizen. Insurance premiums are raised, property is destroyed, people are killed or maimed, and the quality of life in the area affected by arson is diminished considerably. These statements, taken from US Senate hearings on arson in the late 1970s, are as true and as troubling today as they were over a decade ago. Many who set fires need mental health services of some kind, a fact alluded to even in popular literature. Dick Francis, a well-known author of British mysteries, writes, "There are people in this world who cause trouble because it makes them feel important. They're ineffectual, eh? in their lives. So they burn things ..." But nobody wants these arsonists in their midst. Psychiatric facilities do not want them so they end up in prison: Yet another case has been reported of a mentally disordered person being sent to prison because there is no other institution willing to receive her ... a severely mentally disordered woman aged 22 [was sentenced] to life imprisonment for arson ... in default of other appropriate facilities ... to protect the public. And general hospital emergency rooms cannot find anyplace to send them: "The hardest patients to sell are the repeaters with bad reputations, the firesetters and those who are potentially violent." Any arson episode is an act the magnitude of which the perpetrator cannot predict accurately. Once set, the fire is no longer responsive to the desires or dictates of the firesetter. To address the problem of arson in our times, arson

  3. An Economical Method for Static Headspace Enrichment for Arson Analysis (United States)

    Olesen, Bjorn


    Static headspace analysis of accelerants from suspected arsons is accomplished by placing an arson sample in a sealed container with a carbon strip suspended above the sample. The sample is heated, cooled to room temperature, and then the organic components are extracted from the carbon strip with carbon disulfide followed by gas chromatography…

  4. Review of analytical techniques for arson residues. (United States)

    Pert, Alastair D; Baron, Mark G; Birkett, Jason W


    Arson is a serious crime that affects society through cost, property damage, and loss of life. It is important that the methods and technologies applied by fire investigators in detection of evidence and subsequent analyses have a high degree of reliability, sensitivity, and be subject to rigorous quality control and assurance. There have been considerable advances in the field of arson investigation since the 1950s. Classification of ignitable liquids has been updated to include many new categories due to developments in the petroleum industry. Techniques such as steam or vacuum distillation and gas chromatography (GC) with flame ionization detection that may have been considered acceptable--even a benchmark--40 years ago, are nowadays generally disfavored, to the extent that their implementation may almost be considered as ignorance in the field. The advent of readily available mass spectrometric techniques has revolutionized the field of fire debris analysis, increasing the degree of sensitivity and discrimination possible considerably. Multi-dimensional GC--particularly GC x GC--while not yet widely applied, is rapidly gaining recognition as an important technique. This comprehensive review focuses on techniques and practices used in fire investigation, from scene investigation to analysis.

  5. The effect of temperature on arson incidence in Toronto, Ontario, Canada (United States)

    Yiannakoulias, Niko; Kielasinska, Ewa


    Studies of crime and weather have largely excluded arson from empirical and theoretical consideration, yet weather could influence arson frequency over short time frames, influencing the motivation and activity of potential arsonists, as well as the physical possibility of fire ignition. This study aims to understand the role of weather on urban arson in order to determine its role in explaining short-term variations in arson frequency. We use data reported to the Ontario Fire Marshall's office of arson events in the City of Toronto between 1996 and 2007 to estimate the effect of temperature, precipitation, wind conditions and air pressure on arson events while controlling for the effects of holidays, weekends and other calendar-related events. We find that temperature has an independent association with daily arson frequency, as do precipitation and air pressure. In this study area, cold weather has a larger influence on arson frequency than hot weather. There is also some evidence that extremely hot and cold temperatures may be associated with lower day-time arson frequency, while night-time arson seems to have a simpler positive linear association with temperature.

  6. Effect of dietary arsonic acids on performance characteristics of swine waste anaerobic digesters

    Energy Technology Data Exchange (ETDEWEB)

    Brumm, M.C.; Sutton, A.L.; Jones, D.D.


    A completely random design experiment was conducted to determine the effect of dietary arsonic acids on the performance of laboratory swine waste anaerobic digesters. Fortified corn-soybean meal diets containing no arsonic acids (control), 100 ppm arsanilic acid or 75 ppm roxarsone were fed to growing-finishing pigs. Fresh waste (including urine) from all treatments were collected daily for 74 days and loaded at a rate of 2.4 kg volatile solids/cubic meter into nine 25-L anaerobic digesters heated to 34 degrees with continuous agitation and total gas collection. After a 60-day acclimation period, daily gas production and composition and nutrient composition data were obtained from the anaerobic digesters. Inclusion of the arsonic acids in swine diets reduced dry matter and volatile solids content. Dietary arsonic acids also increased NH4+-N. Alky. was high in all the digesters; however, arsonic acids decreased alky. Dietary arsonic acids reduced the ratio of CH4 to CO2 in the gas compared to the control. Significant amounts of As accumulated in the digesters. Alcohol, ethanol, and propanol concentrations were increased by roxarsone, and arsanilic acid increased the PrCO2H concentrations over the percentage in both the roxarsone and control digesters.

  7. Inquiry-Based Arson Investigation for General Chemistry Using GC-MS (United States)

    Maurer, Marta K.; Bukowski, Michael R.; Menachery, Mary D.; Zatorsky, Adam R.


    We have developed a two-week guided-inquiry laboratory in which first-semester general chemistry students investigate a suspected arson using gas chromatography--mass spectrometry and paper chromatography. In the process of evaluating evidence from the crime scene, students develop and test hypotheses and learn the fundamentals of chromatography,…

  8. Angiogenic Potential of 3-Nitro-4-Hydroxy Benzene Arsonic Acid (Roxarsone)



    Background Roxarsone (3-nitro-4-hydroxy benzene arsonic acid) is an arsenic compound widely used in the poultry industry as a feed additive to prevent coccidiosis, stimulate growth, and to improve tissue pigmentation. Little is known about the potential human health effects from roxarsone released into the environment from chicken waste or from residual compound in chicken products. Objective The growth potentiation and enhanced tissue pigmentation suggest that low levels of roxarsone exposur...

  9. From stack-firing to pyromania: medico-legal concepts of insane arson in British, US and European contexts, c. 1800-1913. Part I. (United States)

    Andrews, Jonathan


    This article surveys evolving and competing medico-legal concepts of pyromania and insane arson. Exploiting evidence from medical jurisprudence, medico-legal publications, medical lexicography and case histories, it seeks to explicate the key positions in contemporary professional debates concerning arson and mental derangement. A major focus is the application of the doctrines of moral and partial insanity, monomania, instinctive insanity and irresistible impulse to understandings of pyromania and insane arson. The limited extent to which mental defect provided a satisfactory diagnosis and exculpatory plea for morbid arson is also explored. Additionally, this article compares and contrasts contemporary debates about other special manias, especially kleptomania. Part 2 will be published in the next issue, History of Psychiatry 21 (4).

  10. Fire investigation and experience on arson case%一起放火案件的调查认定

    Institute of Scientific and Technical Information of China (English)

    刘德利; 林福林


    通过分析福建省三明市“2·2”放火案件的调查认定及侦破过程,提出对火灾调查的几点体会,包括放火行为动机与受害人之间不一定有必然的联系,第一时间开展调查对火灾调查的重要性,公安、消防的密切协作是放火案件成功侦破的保证等.%By analyzing the process of fire investigation and detection on Fujian Sanming "2. 2" arson, some experience was proposed as there is not a definite link between arson motive and the victim, the importance of fire investigation at first time, and the assurance of detection is close collaboration of public security and fire service.

  11. Are anti-arsonate antibody N-segments selected at both the protein and the DNA level? (United States)

    Milner, E C; Meek, K D; Rathbun, G; Tucker, P; Capra, J D


    The V-D junctional residue at position 99 of AIJ anti-arsonate antibodies with a major cross-reactive idiotype is invariably a serine. This serine is not encoded in the germline of either the VH or DH gene segments nor can it be generated by intracodonic recombination between VH and DH. It must, therefore, be generated somatically (N segment addition) and selected by antigen. Sequence data indicate that the serine is frequently encoded by the uncommon TCG triplet. Here J. D. Capra and his colleagues discuss several explanations for the repeated appearance of this unusual codon at this position. They conclude that whatever the mechanism, N segment additions are selected at both protein and DNA levels.

  12. INCENDIARIOS "Es preferible morir por el fuego, en combate, que morir en casa, por el hambre: Fidel Castro" Arson

    Directory of Open Access Journals (Sweden)

    Lisieux Elaine de BorbaTelles


    and destruction. Deliberately setting fire to something/someone is an easily executed crime (arson, though difficult to research. This crime has 1.13% prevalence and its incidence is growing around the world, provoking an important social impact due to its victims' financial loss, death, physical lesions and emotional aftermath. Arsonist-type behaviour can be observed from infancy onwards, as more than half the people imprisoned for arson are adolescents. Consuming alcohol has been associated with arsonist-type conduct in half the individuals committing such crime who were motived by revenge. Objective. Reviewing the most recent studies concerning an arsonis's profile, the diagnostic characteristics, the risk factors, neurobiological treatment, recidivism and prognosis. Materials and Methods. A literature review revealed that arsonists represent a heterogeneous criminal category. The development of classification for them thus becomes interesting, considering the aggressor's characteristics, the presence of eventual mental disease, aspects regarding the crime and motivation. Conclusion. The population of arsonists studied has been underrepresented to date, as just a small percentage is sent for diagnostic evaluation and treatment. Incongruence thus arises between the great emotional and financial damage caused by this crime, and the attention given it by the scientific community.

  13. Study on fire scenarios characteristic for Subway trunk arson simulation test%地铁车厢纵火模拟试验火灾特性研究

    Institute of Scientific and Technical Information of China (English)



    在考虑人为恐怖袭击行为情况下,采用地铁车厢实体模型研究了地铁车厢在纵火情况下的火灾场景特性,得出了地铁车厢在模拟火灾中的热释放速率、烟气浓度、温度、烟密度的变化规律.试验结果表明,一节车厢最大热释放速率为5MW左右,如果两侧沙发同时引燃,其最大热释放速率可达10MW.在纵火试验中,火灾发生、发展和蔓延速度明显较快,燃烧较猛烈,高峰瞬时释放出的CO、CO2浓度及试验过程中的总浓度明显较高;NO、SO2、HCN集中在瞬间释放出来而造成瞬时浓度较高.烟气主流是沿着而不贴着屋顶向外蔓延的.因此火灾危险性很高.%Taking into account the arson terrorism, the fire scenarios characteristic of subway fire had been studied by substantiality model of grocery booth of subway platform. The change rule of heat release rate, smoke concentration, temperature and smoke density had been educed. Experimental results show that, a section train trunk maximum heat release rate for 5MW around, if both sides sofa also ignition, its biggest heat release rate can reach 10MW. In the arson trials, fire occurrence, development and spread speed greatly faster, more fierce, burning the instantaneous release of peak CO and CO2 concentration and test process of total concentration significantly higher;NO, SO2, HCN concentrated in an instant cast out and cause instantaneous high concentration. Smoke mainstream is along without stick roof outward spreads. So fire hazard is very high.

  14. 心理障碍患者纵火行为的特点和刑事责任能力%Characteristics and criminal responsibility of arson behavior of mental disorders

    Institute of Scientific and Technical Information of China (English)

    刘成文; 魏庆平


    Objective To study the behavior characteristics of a variety of psychological disorders arson and criminal responsibility , for the prevention of psychological disorders arson behavior in the future to provide clinical data. Methods A retrospective analysis of hospital 32 years, 146 cases of psychological disorders arson offenses forensic psychiatric data. Results We found that a variety of psychological disorders can occur arson violations, including schizophrenia, mental retardation, alcoholism and personality disorders mainly; their low educational level, primary school education account for the majority, occupation of peasants, workers, up to; arson before treatment, irregularity or psychiatric treatment is not carried out; select committed crimes in the night no one present at up to most of the first time crime, all cases are separate crime; crime locations in order to burn the room mostly of his own room and neighbors. Their criminal responsibility for the characteristics of different psychological disorders arson behavior. Conclusion Mental disorders occurred once the act of arson, the loss is big;it is a great danger to patients with psychological disorders. In order to reduce this kind of cases, one should strengthen the mental disorder patients in the treatment and management of work.%目的 研究各种心理障碍患者纵火行为的特点和刑事责任能力,为今后预防心理障碍患者纵火行为的发生提供临床资料.方法 回顾性分析我院32年来进行的146例心理障碍患者发生纵火违法行为的司法精神医学鉴定资料.结果 发现各种心理障碍患者均可发生纵火违法行为,其中以精神分裂症、精神发育迟滞、酒精中毒和人格障碍为主;他们的文化程度较低,小学以下文化程度占大多数;职业以农民、工人最多;纵火前均治疗不正规或未进行精神科治疗;作案时间选择在晚上无人在场最多,大多数是第一次作案,所有案例均为单独作

  15. Wildland Arson as Clandestine Resource Management: A Space-Time Permutation Analysis and Classification of Informal Fire Management Regimes in Georgia, USA (United States)

    Coughlan, Michael R.


    Forest managers are increasingly recognizing the value of disturbance-based land management techniques such as prescribed burning. Unauthorized, "arson" fires are common in the southeastern United States where a legacy of agrarian cultural heritage persists amidst an increasingly forest-dominated landscape. This paper reexamines unauthorized fire-setting in the state of Georgia, USA from a historical ecology perspective that aims to contribute to historically informed, disturbance-based land management. A space-time permutation analysis is employed to discriminate systematic, management-oriented unauthorized fires from more arbitrary or socially deviant fire-setting behaviors. This paper argues that statistically significant space-time clusters of unauthorized fire occurrence represent informal management regimes linked to the legacy of traditional land management practices. Recent scholarship has pointed out that traditional management has actively promoted sustainable resource use and, in some cases, enhanced biodiversity often through the use of fire. Despite broad-scale displacement of traditional management during the 20th century, informal management practices may locally circumvent more formal and regionally dominant management regimes. Space-time permutation analysis identified 29 statistically significant fire regimes for the state of Georgia. The identified regimes are classified by region and land cover type and their implications for historically informed disturbance-based resource management are discussed.

  16. Wildland Arson as Clandestine Resource Management: A Space-Time Permutation Analysis and Classification of Informal Fire Management Regimes in Georgia, USA. (United States)

    Coughlan, Michael R


    Forest managers are increasingly recognizing the value of disturbance-based land management techniques such as prescribed burning. Unauthorized, "arson" fires are common in the southeastern United States where a legacy of agrarian cultural heritage persists amidst an increasingly forest-dominated landscape. This paper reexamines unauthorized fire-setting in the state of Georgia, USA from a historical ecology perspective that aims to contribute to historically informed, disturbance-based land management. A space-time permutation analysis is employed to discriminate systematic, management-oriented unauthorized fires from more arbitrary or socially deviant fire-setting behaviors. This paper argues that statistically significant space-time clusters of unauthorized fire occurrence represent informal management regimes linked to the legacy of traditional land management practices. Recent scholarship has pointed out that traditional management has actively promoted sustainable resource use and, in some cases, enhanced biodiversity often through the use of fire. Despite broad-scale displacement of traditional management during the 20th century, informal management practices may locally circumvent more formal and regionally dominant management regimes. Space-time permutation analysis identified 29 statistically significant fire regimes for the state of Georgia. The identified regimes are classified by region and land cover type and their implications for historically informed disturbance-based resource management are discussed.

  17. [Arson and pyromania, update 2015]. (United States)

    Palix, J


    While the fire constitutes a threat and provokes avoidance by the entire animal world, its control as lighting and maintenance is inseparable from the history of humankind. For 1% of the population that use is turned to harm, repeatedly and without objective reason, responding to the historical definition of pyromania. The profile of arsonists does not appear to be different from that of the general criminal population: alcohol abuse, nicotine, marijuana and antisocial personality do not make fire setters a special case. However positive fire experience lived in childhood, emotional avoidance and expertise in fire settings' control seems to be specific, as recidivism risk below that of the general criminal population.

  18. Thinking about Migrant Workers Rights Protection Channels- Caused by Liu Shuang-yun Arson Case%关于农民工维权渠道的思考--由“刘双云纵火案”引发

    Institute of Scientific and Technical Information of China (English)



      本文以“刘双云纵火案”为切入点,分析了当前诸多如“裸体讨薪”、“模仿新闻发布会讨薪”甚至由讨薪未成而演变为暴力性犯罪事件背后隐藏的深层次问题。阐述了当前“农民工维权难”的现状,分析了“农民工维权难”的原因,提出了解决“农民工维权难”的对策,以期引起社会对农民工基本权利和生存状态的关注,避免农民工流血、流汗又流泪现象的发生。%  Taking “Liu Shuang yun arson case” as the breakthrough point, this paper analyzes the current asking for payment cases by such as“naked”,“ news conference” even evolve into violent crime, the hidden deep seat-ed problems behind the cases. The paper described the current situation of“difficult to protect the rights of migrant workers”, gives analysis on “the difficult reason of migrant workers rights protection”, proposed the countermeas-ures to solve the problem to cause the social attention on the basic rights and living conditions of the migrant work-ers, avoiding phenomenon in which migrant workers give blood, sweat and tears at the same time.

  19. Analysis of arson fire debris by low temperature dynamic headspace adsorption porous layer open tubular columns. (United States)

    Nichols, Jessica E; Harries, Megan E; Lovestead, Tara M; Bruno, Thomas J


    In this paper we present results of the application of PLOT-cryoadsorption (PLOT-cryo) to the analysis of ignitable liquids in fire debris. We tested ignitable liquids, broadly divided into fuels and solvents (although the majority of the results presented here were obtained with gasoline and diesel fuel) on three substrates: Douglas fir, oak plywood and Nylon carpet. We determined that PLOT-cryo allows the analyst to distinguish all of the ignitable liquids tested by use of a very rapid sampling protocol, and performs better (more recovered components, higher efficiency, lower elution solvent volumes) than a conventional purge and trap method. We also tested the effect of latency (the time period between applying the ignitable liquid and ignition), and we tested a variety of sampling times and a variety of PLOT capillary lengths. Reliable results can be obtained with sampling time periods as short as 3min, and on PLOT capillaries as short as 20cm. The variability of separate samples was also assessed, a study made possible by the high throughput nature of the PLOT-cryo method. We also determined that the method performs better than the conventional carbon strip method that is commonly used in fire debris analysis.

  20. Performance-Based Design for Arson Threats: Policy Analysis of the Physical Security for Federal Facilities Standard (United States)


    issue for the application of fire modelling [sic] to real scenarios when the HRR us unknown (i.e., [sic], forensic investigation and assumed design...undesirable events on the list. Event scenarios ranged from ballistic attacks using a variety of weapons to robbery, theft, and unauthorized...establishing standards for ballistic resistance of protective vests, a working group developing standards for contract guards should be considering the

  1. Pyro-Terrorism -- The Threat of Arson Induced Forest Fires as a Future Terrorist Weapon of Mass Destruction (United States)


    During World War II, There was concern that further [Japanese] attacks could bring disastrous loss of life and destruction of property. There was...Goebel, Greg, The Fire Balloons. V 1.0.2. 01 Jun 04 available at . 29 Goleta Montessori School website on Goleta

  2. The Arson of Bailudong Academy in 1921%1921年的白鹿洞书院纵火案

    Institute of Scientific and Technical Information of China (English)

    黄林燕; 吴国富



  3. Violenze e incendi nella realtà italiana e francese / Violence and arson in Italy and France / Violence et incendies en Italie et en France

    Directory of Open Access Journals (Sweden)

    Raffaella Sette


    Full Text Available The aim of this article is to analyze the difference between two European realities (Italy and France concerning fire related damage.In particular, we will focus on the Italian criminal organizations of today which acquire their wealth in an illicit way by blackmailing the owners of commercial activities and which, if the latter refuse to pay, inflict severe punishments on the shopkeeper or the entrepeneur, for example systematic destruction, even with fire, of the store or the industrial plant. On this subject, we will analyze the fundamental role played by the victims.Violence and destruction also characterize the riots in the French suburbs, particularly in the autumn 2005. On this subject, thanks to the various points of view, the article is a reflection of why “ordinary” young people of the “inner cities” have taken part in these events.Cet article a pour objectif d'analyser la différence entre deux contextes européens (l'Italie et la France en ce qui concerne le choix du feu dans le but de provoquer des dégâts.Il prend tout particulièrement en considération les organisations criminelles italiennes actuelles qui arrivent à acquérir des richesses de façon illicite en faisant du chantage aux patrons des activités productives et qui, si ces derniers refusent de payer, punissent sévèrement le commerçant ou l'entrepeneur, en détruisant systématiquement par le feu le magasin ou l'établissement industriel. À ce propos, l'article analysera le rôle fondamental joué par les victimes.Violence et destruction caractérisent aussi les émeutes dans les banlieues françaises, comme en automne 2005. À ce sujet, partant de différents points de vue, l'article propose une réflexion sur ce qui a poussé des jeunes "ordinaires" des banlieues dites "sensibles" à y participer.

  4. Contribution of forensic autopsy to scene reconstruction in mass fire casualties: a case of alleged arson on a floor consisting of small compartments in a building. (United States)

    Michiue, Tomomi; Ishikawa, Takaki; Oritani, Shigeki; Maeda, Hitoshi


    A fire is an important cause of mass disasters, involving various forensic issues. Before dawn on an early morning, 16 male visitors in their twenties to sixties were killed in a possibly incendiary fire at a 'private video parlor' consisting of small compartments in a building. The main causes of death as determined by forensic autopsy were acute carbon monoxide (CO) intoxication for all of the 15 found-dead victims, and hypoxic-ischemic encephalopathy following acute CO intoxication for a victim who died in hospital. Burns were mild (victims, except for three victims found between the entrance and the estimated fire-outbreak site; thus, identification was completed without difficulty, supported by DNA analysis. Blood carboxyhemoglobin saturation (COHb) was higher for victims found dead in the inner area. Blood cyanide levels were sublethal, moderately correlated to COHb, but were higher in victims found around the estimated fire-outbreak site. There was no evidence of thinner, alcohol or drug abuse, or an attack of disease as a possible cause of an accidental fire outbreak. These observations contribute to evidence-based reconstruction of the fire disaster, and suggest how deaths could have been prevented by appropriate disaster measures.

  5. Combatting the Terrorist Threat. (United States)


    hostage negotiators. The ASI is essential for personnel management of these specially trained soldiers. There is no other way to track their proper...Arson, recruiting station, flew York City. California 12 Jul 80 Arson, recruiting station, San Francisco . Berlin 4 Sep 80 Damage to uniforms and

  6. Pierre Bourdieu (höfundur; Davíð Kristinsson (ritstjóri, ritar inngang; Björn Þorsteinsson, Egill Arnarson og Gunnar Harðarson (þýðendur: Almenningsálitið er ekki til

    Directory of Open Access Journals (Sweden)

    Ólafur Þ. Harðarson


    Full Text Available Ég hlakkaði til að lesa þetta kver eftir Bourdieu, enda hef ég rannsakað lýðræði, kosningar og almenningsálit í þrjátíu ár og kennt námskeið um efnið. Hafði auk þess heyrt ýmsa tala um þennan Frakka af lotningu, en er lítt eða ekki kunnugur verkum hans, enda skólaður í engilsaxneskri hefð. Ekki hafði ég lengi lesið þegar í hugann kom: Þetta hef ég lesið áður! Hressileg aðkenning að desjavú. Uppúr 1970 las ég tvo franska strúktúralíska marxista nokkuð vel (og var lengi að því, Althusser og Poulantzas. Þá voru þeir í tísku - seinna fór illa fyrir báðum en það skiptir ekki máli hér. Lesturinn á þeim tvímenningum reyndist mér afar gagnlegur. Ég lærði að tyrfinn texti þarf ekki endilega að segja mikið þegar hann hefur verið "afbyggður". Ég lærði að nokkur virðing fyrir staðreyndum getur farið saman við kennilega kreddufestu: Ný-marxistarnir uppúr 1970 sögðu m.a. að það væri að vísu rétt að ýmis svið samfélagsins byggju við tiltekið sjálfstæði (relative autonomy, t.d. pólitíska sviðið og menningarsviðið. Samfélagið væri flóknara en svo að ríkisvaldið væri einbert framkvæmdaráð borgarastéttarinnar. En - og það var stórt en - samt væri það hagkerfið sem réði þegar allt kæmi til alls (determinant in the last instance. Þótt komið væri dálítið á móts við staðreyndir og gögn var áfram trúað á kredduna.

  7. 20 CFR 404.1325 - Separation from active service under conditions other than dishonorable. (United States)


    ... States, or by the active service of an allied country during the World War II period; (c) A dishonorable... by a civil court for treason, sabotage, espionage, murder, rape, arson, burglary, robbery,...

  8. Looking for pyromania: Characteristics of a consecutive sample of Finnish male criminals with histories of recidivist fire-setting between 1973 and 1993

    Directory of Open Access Journals (Sweden)

    Tani Pekka


    Full Text Available Abstract Background As pyromania is a rare diagnosis with questionable validity, we aimed to describe a forensic psychiatric population of arson recidivists. Methods The medical records as well as the forensic psychiatric examination statements of 90 arson recidivists referred for pretrial psychiatric assessment in Helsinki University Hospital Department of Forensic Psychiatry between 1973 and 1993 were reviewed. Results The most important diagnostic categories of arson recidivists were personality disorders, psychosis and mental retardation, often with comorbid alcoholism. In all, 68% of arsonists were under alcohol intoxication during the index crime. Psychotic as well as mentally retarded persons with repeated fire-setting behaviour were mostly "pure arsonists"- persons guilty only of arsons during their criminal careers. Arson recidivists with personality disorder, in contrast, often exhibited various types of criminal behaviour and arson appeared to be only one expression of a wide range of criminal activity. Comorbid alcoholism was apparently a more rarely observed phenomenon among pure arsonists than in "nonpure arsonists". We found only three subjects fulfilling the present diagnostic criteria for pyromania. Conclusion Using the criteria of the DSM-IV-TR, pyromania must be regarded as an extremely rare phenomenon. Especially the question of substance intoxication as an exclusion criterion for pyromania should be reconsidered.

  9. Mass spectrometric identification of an azobenzene derivative produced by smectite-catalyzed conversion of 3-amino-4-hydroxyphenylarsonic acid (United States)

    Wershaw, R. L.; Rutherford, D.W.; Rostad, C.E.; Garbarino, J.R.; Ferrer, I.; Kennedy, K.R.; Momplaisir, G.-M.; Grange, A.


    The compound 3-amino-4-hydroxyphenylarsonic acid (3-amino-HPAA) reacts with smectite to form a soluble azobenzene arsonic acid compound. This reaction is of particular interest because it provides a possible mechanism for the formation of a new type of arsenic compound in natural water systems. 3-Amino-HPAA is a degradation product excreted by chickens that are fed rations amended with roxarsone. Roxarsone is used to control coccidial intestinal parasites in most of the broiler chickens grown in the United States. The structure of the azobenzene arsonic acid compound was first inferred from negative-ion and positive-ion low-resolution mass-spectrometric analyses of the supernatant of the smectite suspension. Elemental composition of the parent ion determined by high-resolution positive-ion mass spectrometric measurements was consistent with the proposed structure of the azobenzene arsonic acid compound. Published by Elsevier Science B.V.

  10. Job Descriptions, Report Forms, Annual Report, Mobile Home Live-In Agreements. Workshop I. School Security Programs. (United States)

    National Association of School Security Directors, Bellevue, WA.

    Workshop materials, all from Broward County (Florida), include job descriptions for the positions of director of security, security investigator, security specialist, and security patrolman. A security report also contains charts reflecting arson, vandalism, and theft costs from the school in years 1970 through 1979. The last section contains…

  11. Crime and Disruption in Schools. A Selected Bibliography. (United States)

    Rubel, Robert, Comp.; And Others

    This annotated bibliography about crime and disruption in schools has been assembled from academic, professional, and government sources. The citations are organized into four major parts. "Overview: Nature and Extent of the Problem" contains studies that describe the cost of school crimes, primarily vandalism and arson, both in dollars and in…


    Roxarsone (3-nitro-4-hydroxyphenyl-arsonic acid) is one of the most widely used growthpromoting and disease-controlling feed additives in the United States. Most broiler chickens are fed roxarsone to promote weight gain and control parasites. Most of the roxarsone is believed to ...

  13. Evil Bands and Violent Narratives in Thirteenth-Century Japan

    DEFF Research Database (Denmark)

    Oxenbøll, Morten


    crimes associated with banditry and ‘evil bands’ in general, such as murder, theft and arson, the temples aimed to show the negative impact the conflicts could possibly have on temple economy and estate control. Simultaneously they could emphasize the political and social danger posed by their legal...

  14. Game-Based Life-Long Learning

    NARCIS (Netherlands)

    Kelle, Sebastian; Sigurðarson, Steinn; Westera, Wim; Specht, Marcus


    Kelle, S., Sigurðarson, S., Westera, W., & Specht, M. (2011). Game-Based Life-Long Learning. In G. D. Magoulas (Ed.), E-Infrastructures and Technologies for Lifelong Learning: Next Generation Environments (pp. 337-349). Hershey, PA: IGI Global.

  15. Macroreticular chelating ion-exchangers. (United States)

    Hirsch, R F; E Gancher, R; Russo, F R


    Two macroreticular chelating ion-exchangers have been prepared and characterized. One contains the iminodiacetate group and the second contains the arsonate group as the ion-exchanging site. The macroreticular resins show selectivities among metal ions similar to those of the commercially available naicroreticular chelating resins. Chromatographie separations on the new resins are rapid and sharp.

  16. Generation of antibody and development of an enzyme-linked immunosorbant assay for the feed additive roxarsone (United States)

    Roxarsone (3-nitro-4-hydroxy-phenyl arsonic acid) has been used in the poultry and swine industries as a feed additive to treat coccidiosis and other intestinal disorders as well as to improve feed efficiencies and weight gain. In animals, roxarsone is eliminated mostly as parent compound which may ...

  17. 32 CFR 761.6 - Criteria. (United States)


    ... the aims of, or adherence to and active participation in, any foreign or domestic organization... to the security of a strategic area containing military establishments; arson, unlawful trafficking... dependents of U.S. citizen employees of the United States may, if otherwise qualified, be granted...

  18. Got a Match? Ion Extraction GC-MS Characterization of Accelerants Adsorbed in Charcoal Using Negative Pressure Dynamic Headspace Concentration (United States)

    Anzivino, Barbara; Tilley, Leon J.; Ingalls, Laura R.; Hall, Adam B.; Drugan, John E.


    An undergraduate organic chemistry experiment demonstrating real-life application of GC-MS to arson accelerant identification is described. Students are given the task of comparing a sample recovered from a "crime scene" to that from a "suspect's clothing". Accelerants subjected to different conditions are recovered using a quick and simple…

  19. Youth Corrections in Japan: Family-Like Setting for Delinquents with the Experiences of Child Maltreatment (United States)

    Matsuura, Naomi


    It is very well known that Japan has an extremely low rate of crime compared with other developed countries. Due to fewer serious incidents such as murder, rape, and arson, Japanese society is generally peaceful and orderly. For instance, although there are 23 million juveniles who are younger than 20 years old, only 39 homicides were committed in…

  20. Social Studies: Law Education. (United States)

    Curriculum Review, 1979


    Reviews 11 series, texts, supplements, kits, and professional references for law instruction, including civil and criminal law, the Bill of Rights, and controversial legal issues: arson, gun control, capital punishment, and euthanasia. While all grade levels are covered, the emphasis is on secondary-level materials. (SJL)

  1. Fire-settng behavior associated with Klinefelter syndrome. (United States)

    Eytan, Ariel; Paoloni-Giacobino, Ariane; Thorens, Gabriel; Eugster, Nicole; Graf, Isabelle


    This is a report on a male patient with a previous history of psychotic disorder who was arrested for arson. During the following hospitalization in a psychiatric unit, a genetic syndrome, namely Klinefelter syndrome (47,XXY), was diagnosed. The association between firesetting behavior and Klinefelter syndrome is reviewed, and the underlying explanatory hypothesis is discussed.

  2. [Investigation on events of bus on fire in 6 years in the mainland of China]. (United States)

    Wang, X G; Liu, Y; Cen, Y; Wu, P; Zhou, H L; Han, C M


    Objective: To retrospectively analyze the characteristics of events of bus on fire in 6 years in the mainland of China. Methods: Events of bus on fire happened between January 2009 and December 2014 were retrieved through Baidu search engine, Chinese Journals Full-text Database, and PubMed database in the search strategy with " bus" and " fire" or " arson" as keywords combined with the name of provinces, autonomous regions, and municipalities of the mainland of China. The occurrence time, region, cause of fire, casualties of each event were recorded, and the correlative analysis was conducted. Data were processed with Microsoft Excel software. Results: Totally 287 events of bus on fire were retrieved, among which 49 events happened in 2009, 36 events happened in 2010, 35 events happened in 2011, 37 events happened in 2012, and respectively 65 events happened in 2013 and 2014. The events of bus on fire most frequently happened in June and July, respectively 49 and 39 events. Among the distribution of occurrence regions of events of bus on fire, there were 78 events (27.18%) in east China, 52 events (18.12%) in northeast China, 41 events (14.29%) both in north China and south China. Among the causes of events of bus on fire, spontaneous combustion of bus ranked in the first (267 events, accounting for 93.03%), followed by arson (13 events, accounting for 4.53%). Among the 13 events of bus on fire caused by arson, 7 events happened between 16: 00 and 20: 00, and 3 events happened between 8: 00 and 10: 00. Totally 27 events of bus on fire (9.41%) were with casualties, among which 13 events (48.15%) were caused by spontaneous combustion of bus, 10 events (37.04%) were caused by arson, and 4 events (14.81%) were caused by traffic accidents. Arson caused the most severe casualties (at least 88 deaths and 287 injuries), followed by spontaneous combustion of bus (at least 35 deaths and 140 injuries) and traffic accidents (at least 9 deaths and 20 injuries). Conclusions

  3. Editoriale/Editorial/Éditorial

    Directory of Open Access Journals (Sweden)

    Augusto Balloni


    Full Text Available After a brief introduction concerning forensic and psychiatric aspects of intentional arson, the article points out that this phenomenon is not univocal because it is connected to different psychopatological conditions.The article also examines arson in a criminological perspective pointing out some aspects of this particular kind of victimization.Après un aperçu de quelques aspects psychiatriques-forensiques relatifs à l'incendie volontaire, l'article souligne le fait que ce phénomène n'est pas univoque et qu'il peut être associé à des conditions psychopathologiques spécifiques.Ensuite, l'article traite de l'incendie en termes criminologiques et il donne quelques précisions sur les processus de victimation liés à cette forme de criminalité.

  4. Analysis of accelerants and fire debris using aroma detection technology

    Energy Technology Data Exchange (ETDEWEB)

    Barshick, S.A.


    The purpose of this work was to investigate the utility of electronic aroma detection technologies for the detection and identification of accelerant residues in suspected arson debris. Through the analysis of known accelerant residues, a trained neural network was developed for classifying suspected arson samples. Three unknown fire debris samples were classified using this neural network. The item corresponding to diesel fuel was correctly identified every time. For the other two items, wide variations in sample concentration and excessive water content, producing high sample humidities, were shown to influence the sensor response. Sorbent sampling prior to aroma detection was demonstrated to reduce these problems and to allow proper neural network classification of the remaining items corresponding to kerosene and gasoline.

  5. Palestine Authorities:Trouble within

    Institute of Scientific and Technical Information of China (English)

    Tang Zhichao


    @@ The Palestine Authorities (PA) is now plagued with an internal crisis ever seen over the past dozen years. A string of kidnappings, gun battles, cases of arson and demonstrations resorted to by some hotheads since mid-July has thrown Gaza Strip into utter chaos, triggering off a political crisis with many high-ranking officials including Prime Minister Kurile tendering their resignations to President Yasser Arafat.

  6. Amino acid sequence diversity within the family of antibodies bearing the major antiarsonate cross-reactive idiotype of the A strain mouse



    VH region amino acid sequences are described for five A/J anti-p- azophenylarsonate (anti-Ars) hybridoma antibodies for which the VL region sequences have previously been determined, thus completing the V domain sequences of these molecules. These antibodies all belong to the family designated Ars-A which bears the major anti-arsonate cross- reactive idiotype (CRI) of the A strain mouse. However, they differ in the degree to which they express the CRI in standard competition radioimmunoassays...

  7. Hybrid organic-inorganic polyoxometalates : synthesis and characterisation of organoarsonate and organophosphonate functionalised polyoxovanadate clusters


    Breen, John Michael


    This thesis presents a significant contribution of research to the field of hybrid inorganic- organic polyoxometalates. Herein the functionalisation of polyoxovanadate clusters with aryl arsonates and aryl phosphonates is described and the structural and physiochemical properties of the product materials are discussed. Chapter 1 introduces the reader to the field of research, highlights recent significant achievements and puts accomplishments into a broader context. TARA (Trinity’s Access ...

  8. L’acte incendiaire, son sujet et sa signification : propositions à partir du Saint Genet de Jean-Paul Sartre


    Englebert, Jérôme


    Objectives In this paper we studied fire setters with the hermeneutics’ method from the philosophy of Jean-Paul Sartre. In the psychobiography of Jean Genet, the philosopher raises issues of the infractional acting and its social meaning. Methods After recalling the basic notions of international literature about fire setters (including confusion with pyromania, diagnostic problems proposed by the DSM IV and the concept of "communicative arson"), we propose phenomenological and exis...

  9. Development of an ion chromatography-inductively coupled plasma-mass spectrometry method to determine inorganic arsenic in liver from chickens treated with roxarsone. (United States)

    Conklin, Sean D; Shockey, Nohora; Kubachka, Kevin; Howard, Karyn D; Carson, Mary C


    Roxarsone, (4-hydroxy-3-nitrophenyl)arsonic acid, is an arsenic-containing compound that has been approved as a feed additive for poultry and swine since the 1940s; however, little information is available regarding residual arsenic species present in edible tissues. We developed a novel method for the extraction and quantification of arsenic species in chicken liver. A strongly basic solution solubilized the liver, and ultrafiltration removed macromolecules and particulate material. Ion chromatography separated the species [arsenite, arsenate, monomethylarsonic acid, dimethylarsinic acid, (4-hydroxy-3-aminophenyl)arsonic acid, (4-hydroxy-3-acetaminophenyl)arsonic acid, and roxarsone] in the extracts, which were then detected by inductively coupled plasma-mass spectrometry. The extraction oxidized most arsenite to arsenate. For fortification concentrations at 2 μg kg(-1) and above, recoveries ranged from 70 to 120%, with relative standard deviations from 7 to 34%. We detected roxarsone, its 3-amino and 3-acetamido metabolites, inorganic arsenic, and additional unknown arsenic species in livers from roxarsone-treated chickens. Both the originating laboratory and a second laboratory validated the method.

  10. Directory of Open Access Journals (Sweden)

    Jasmine Kaur Dhall


    Full Text Available Fingerprints are the most affirmative source of personnel identification and are also one of the most ubiquitous evidences found at the crime scenes. However, successful latent print recovery is not always possible from the crime scenes especially when the prints have been exposed to destructive conditions. Crime scenes are often despoiled due to destructive conditions such as arson, explosion, exposure to drainage water and soil or snow burial. Moreover, the offender often intends to destroy the fingerprint bearing crucial evidence, using these destructive forces. Furthermore, the fingerprints exposed to despoiled crime scenes are generally neglected due to the misconception of impossible recovery. In the present study, zinc carbonate, zinc oxide and titanium dioxide based fluorescent small particle reagents were formulated, compared and evaluated for the development of latent prints exposed to destructive conditions. Fresh latent prints and prints exposed to natural or simulated destructive crime scene conditions, namely, arson, explosion, burial in soil, immersion in drainage water and burial in snow were developed using the three compositions. Latent prints were successfully recovered even from the destructive crime scene simulations. Better quality prints were obtained from fresh prints, arson, soil burial and drainage water. Relatively poor results were obtained from explosion and snow burial conditions. Wet powder based suspensions were found suitable for development of fingerprints exposed to destructive conditions and the efficiency of the reagents was found in the order: TiO2 > ZnCO3 > ZnO.

  11. 伯莎为何会“疯”?--论《藻海茫茫》女主角身份认同失败问题%Why is Bertha “Crazy” ? A Discussion on the Female Protagonist's Failure of Identification in Wilde Sargasso Sea

    Institute of Scientific and Technical Information of China (English)



    《藻海茫茫》因其特有的后殖民色彩而备受读者和批评家的关注。伯莎的“疯癫”及其纵火的行为,大多数评论者认为是遗传其母亲的缘故。此篇文章则认为这种“疯癫”是身份认同失败后身份迷失分裂的结果,伯莎分别在内部空间与外部空间中寻求认同却都以失败告终。其内部空间的认同在于与亲人的认同,外部空间的认同则为与黑人群体及白人群体的认同,内、外部空间身份认同的双重失败导致了伯莎偏激异常的心理及一系列行为,最终纵火而亡。%Wilde Sargasso Sea is known by readers and critics for its post - colonialism .Most people think that Bertha's mother is responsible for the craziness of Bertha and her act of arson .However ,this essay puts forward a new cause : her craziness and her act of arson is the loss caused by her failure to identify herself .In the novel ,Bertha has tried to search for identity from inner space and exterior space but failed .The identification in the inner space lies in that with her relatives and the identification in the exterior space is that with black people and white people .The double failure of identification in the two spaces results in her extreme and abnormal behavior and finally her arson and death .

  12. New methods for testing fire resistance of wood façade systems

    Directory of Open Access Journals (Sweden)

    Mårtensson August


    Full Text Available Arson in schools has been a huge problem in Sweden over the last fifteen years. The average amount of school arsons between 2000 and 2014 was 285 cases each year which corresponds to 50% of the total amount of reported fires in school buildings. This is a well-known problem and a lot of research has been done in this area. Investigations has been done about fire and heat detection systems, different technical factors significance in fire scenarios and how to prevent adolescents from starting fires. Another part of the problem that partly been investigated is how the schools are constructed. Roughly 50% of the arsons are outside of the school building. In Sweden one and two storey buildings are allowed to be built with wooden façades in accordance with the building code, which is one of the reasons many schools are built with wooden façade systems. The most critical part in a wood façade system from a fire safety perspective is concluded to be the eaves because of how they usually are built to let air pass through. Even though a wood façade isn't as well resistant to fire compared to a concrete façade, three versions of new test methods for combustible façades have been developed to make it possible to make sure in advance that a construction is resistant enough. The new test methods are focused on specific details and parts of a façade system to provide a more informative and useful result compared to SP Fire 105. Observations and measurements of flame spread and temperature changes in the eave, over the window joints and in the air gap are made. With these parameters in consideration criteria's has been chosen for a critical temperature of 280 ∘C at a critical time of 20 minutes.

  13. Pervasive developmental disorders and criminal behaviour: a case control study

    DEFF Research Database (Denmark)

    Mouridsen, Svend Erik; Rich, Bente; Isager, Torben


    -up was between 25 years and 59 years. An account of convictions in the nationwide Danish Register of Criminality was used as a measure of criminal behaviour. Among 113 cases with childhood autism, .9% had been convicted. In atypical autism (n=86) and Asperger's syndrome (n=114) the percentages were 8.1% and 18.......4%, respectively. The corresponding rate of convictions in the comparison groups was 18.9%, 14.7%, and 19.6% respectively. Particular attention is given to arson in Asperger's syndrome (p= .0009)....

  14. Pervasive developmental disorders and criminal behaviour - A case control study

    DEFF Research Database (Denmark)

    Mouridsen, S.E.; Rich, B.; Isager, T.


    -up was between 25 years and 59 years. An account of convictions in the nationwide Danish Register of Criminality was used as a measure of criminal behaviour. Among 113 cases with childhood autism, .9% had been convicted. In atypical autism (n = 86) and Asperger's syndrome (n = 114) the percentages were 8.......1% and 18.4%, respectively. The corresponding rate of convictions in the comparison groups was 18.9%, 14.7%, and 19.6% respectively. Particular attention is given to arson in Asperger's syndrome (P = .0009) Udgivelsesdato: 2008/4...

  15. Sorptive Uptake Studies of an Aryl-Arsenical with Iron Oxide Composites on an Activated Carbon Support



    Sorption uptake kinetics and equilibrium studies for 4-hydroxy-3-nitrobenzene arsonic acid (roxarsone) was evaluated with synthetic magnetite (Mag-P), commercial magnetite (Mag-C), magnetite 10%, 19%, and 32% composite material (CM-10, -19, -32) that contains granular activated carbon (GAC), and synthetic goethite at pH 7.00 in water at 21 °C for 24 h. GAC showed the highest sorptive removal of roxarsone and the relative uptake for each sorbent material with roxarsone are listed in descending...

  16. Analytical method for determination of benzene-arsenic acids

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, G.L.; Bayse, G.S.


    A sensitive analytical method has been modified for use in determination of several benzenearsonic acids, including arsanilic acid (p-aminobenzenearsonic acid), Roxarsone (3-nitro-4-hydroxybenzenearsonic acid), and p-ureidobenzene arsonic acid. Controlled acid hydrolysis of these compounds produces a quantitative yield of arsenate, which is measured colorimetrically as the molybdenum blue complex at 865 nm. The method obeys Beer's Law over the micromolar concentration range. These benzenearsonic acids are routinely used as feed additives in poultry and swine. This method should be useful in assessing tissue levels of the arsenicals in appropriate extracts.

  17. Review of Department of the Navy, Judge Advocate General’s Surface Ship Fire Investigation Reports for the Period 1980 through 1986 (United States)


    Mar 79 Switchboard 2. 438-80 Shenandoah AD26 Fire in Paint Room 19 May 79 3. 626-80 Conyngham DDG 17 Four Arson Fires 12-14 Jul 78 4. 920-80 TAFES) TECHEVAL - Technical Evaluation XO - Executive Officer XRAY - Watertight condition of a ship. Usually set at night. 96 YOKE - Watertight...condition of a ship (more than XRAY , less than ZEBRA). ZEBRA - Most watertight condition of a ship. Usually set with General Quarters. II. SPACE

  18. Motion Blobs as a Feature for Detection on Smoke

    Directory of Open Access Journals (Sweden)

    Khalid Nazim S. A.


    Full Text Available Disturbance that is caused due to visual perception with the atmosphere is coined as smoke, but the major problem is to quantify the detected smoke that is made up of small particles of carbonaceous matter in the air, resulting mainly from the burning of organic material. The present work focuses on the detection of smoke immaterial it being accidental, arson or created one and raise an alarm through an electrical device that senses the presence of visible or invisible particles or in simple terms a smoke detector issuing a signal to fire alarm system / issue a local audible alarm from detector itself.

  19. Identification of petroleum distillates from fire debris using multidimensional gas chromatography

    Energy Technology Data Exchange (ETDEWEB)

    Jayatilaka, A. (Dept. of Chemistry, Wayne State Univ., Detroit, MI (United States)); Poole, C.F. (Dept. of Chemistry, Wayne State Univ., Detroit, MI (United States))


    A method for identifying petroleum distillates (accelerants) in fire debris samples by dynamic headspace analysis and multidimensional gas chromatography is described. The method relies on the separation of target compounds characteristic of different petroleum distillate classes from interfering co-eluting and matrix components. A relatively non-polar column is used to characterize the volatility distribution of the sample and heartcutting to a second polar column of certain fractions to separate target compounds from interferences unresolved on the first column. The method is demonstrated for the identification of gasoline, kerosene, charcoal lighter fluid, and paint thinners in simulated arson samples. (orig.)

  20. 承德“4·30”金太阳歌城火灾调查%Chengde “4·30” Jintaiyang karaoke bar fire investigation

    Institute of Scientific and Technical Information of China (English)

    解景林; 高占彬


    In this paper, the investigation process of Chengde "4 · 30" Jintaiyang Karaoke bar fire incident was introducd. Through careful and detailed fire scene inspection, requesting the wittness and physical evidence identification, the fire was turn out to be an arson.%介绍了承德金太阳歌城“4·30”火灾事故的调查认定过程,通过缜密细致的现场勘验、广泛深入调查访问和物证技术鉴定,最后认定起火原因为放火.

  1. Lead isotopic compositions of common arsenical pesticides used in New England (United States)

    Ayuso, Robert; Foley, Nora; Robinson, Gilpin; Wandless, Gregory; Dillingham, Jeremy


    The three most important arsenical pesticides and herbicides that were extensively used on apple, blueberry, and potato crops in New England from mid-1800s to recent times are lead arsenate, calcium arsenate, and sodium arsenate. Lead arsenate was probably the most heavily used of the arsenical pesticides until it was banned in 1988. Other metal-arsenic pesticides were also used but in lesser amounts. A recent report identified areas in New England where arsenical pesticides were used extensively (Robinson and Ayuso, 2004). On the basis of factor analysis of metal concentrations in stream sediment samples, a positive correlation with pesticide use was shown in regions having stream sediment sample populations that contained concentrations of high arsenic and lead. Lead isotope compositions of stream sediments from areas with heavy use of the pesticides could not be entirely explained by lead originating from rock sulfides and their weathering products. An industrial lead contribution (mostly from atmospheric deposition of lead) was suggested in general to explain the lead isotopic distributions of the stream sediments that could not be accounted for by the natural lead in the environment. We concluded that when agricultural land previously contaminated with arsenical pesticides is urbanized, pesticide residues in the soils and stream sediments could be released into the groundwater. No lead isotopic data characterizing the compositions of pesticides were available for comparison. We have determined the lead isotopic compositions of commonly used pesticides in New England, such as lead arsenate, sodium metaarsenite, and calcium arsenate, in order to assist in future isotopic comparisons and to better establish anthropogenic sources of Pb and As. New data are also presented for copper acetoarsenite (or Paris green), methyl arsonic acid and methane arsonic acid, as well as for arsanilic acid, all of which are used as feed additives to promote swine and poultry growth

  2. Arsenic speciation by hydride generation-quartz furnace atomic absorption spectrometry. Optimization of analytical parameters and application to environmental samples

    Energy Technology Data Exchange (ETDEWEB)

    Molenat, N.; Astruc, A.; Holeman, M.; Pinel, R. [Laboratoire de Chimie Analytique Bioinorganique et Environnement, Dept. de Chimie, Faculte des Sciences et Techniques, 64 - Pau (France); Maury, G. [Montpellier-2 Univ., 34 (France). Dept. de Chimie Organique Fine


    Analytical parameters of hydride generation, trapping, gas chromatography and atomic absorption spectrometry detection in a quartz cell furnace (HG/GC/QFAAS) device have been optimized in order to develop an efficient and sensitive method for arsenic compounds speciation. Good performances were obtained with absolute detection limits in the range of 0.1 - 0.5 ng for arsenite, arsenate, mono-methyl-arsonic acid (MMAA), dimethyl-arsinic acid (DMAA) and trimethyl-arsine oxide (TMAO). A pH selective reduction for inorganic arsenic speciation was successfully reported. Application to the accurate determination of arsenic compounds in different environmental samples was performed. (authors)

  3. Comparison of differential mobility spectrometry and mass spectrometry for gas chromatographic detection of ignitable liquids from fire debris using projected difference resolution. (United States)

    Lu, Yao; Chen, Ping; Harrington, Peter B


    The significance of forensic arson analysis accelerates the applications of new technologies in this area. Based on the previously reported application of differential mobility spectrometry (DMS) as a detection method for gas chromatography (GC) in arson analysis, the performances of DMS and mass spectrometry (MS) were compared using a novel chemometric tool, projected difference resolutions (PDRs). The PDR results show that one-way mass spectra data exhibit higher resolution than DMS data, while total ion chromatograms from GC-DMS show higher resolution than that from GC/MS for differentiating seven kinds of ignitable liquids. Combining the information from both chromatography and spectra, two-way data always have higher resolution than one-way data for these two detection methods, and GC/MS would exhibit better performance than GC-DMS according to the minimum resolution value. To verify the PDR results, a fuzzy rule-building expert system was applied for classifying these seven kinds of ignitable liquids from fire debris based on GC-DMS and GC/MS data, respectively. The prediction accuracies were consistent with PDR results, which proved that PDR is a powerful tool in comparing the performances of different analysis methods for pattern recognition.

  4. Loss of a major idiotype (CRIA) after repopulation of irradiated mice

    Energy Technology Data Exchange (ETDEWEB)

    Willems, F.; Vansanten-Urbain, G.; De Wit, D.; Slaoui, M.; Urbain, J. (Universite Libre de Bruxelles (Belgium))


    The normal immune response of A/J mice against arsonate coupled to hemocyanin is characterized by a major recurrent cross-reactive Id, the CRIA. This Id is encoded by a single gene segment combination: VHidcr11-DFL16.1e-JH2 for the H chain and Vkidcr-Jk1 for the L chain. In this report, we show that lethal irradiation of A/J mice followed by reconstitution with autologous or syngeneic lymphoid cells results in loss of major CRIA Id expression in the response to arsonate. Different protocols were performed to repopulate the irradiated mice. First, lethally irradiated A/J mice were reconstituted by the transfer of syngeneic bone marrow cells. Second, A/J mice were lethally irradiated while their hind limbs were partially shielded. Third, lethally irradiated A/J mice received a transfer of syngeneic spleen cells. The three groups of mice produce high titers of antiarsonate antibodies completely devoid of CRIA DH-JH related idiotopes expression. Moreover, a lack of affinity maturation is observed in the secondary antiarsonate response of all irradiated and reconstituted mice. A transfer of syngeneic peritoneal cells or a transfer of primed T cells in irradiated and reconstituted A/J mice do not restore in a significant manner either the recurrent CRIA expression or the affinity maturation of the antiarsonate response. Our data suggest that the choice of this Id is not solely dictated by the Igh locus.

  5. Terrorism in Turkey. (United States)

    Rodoplu, Ulkumen; Arnold, Jeffrey; Ersoy, Gurkan


    Over the past two decades, terrorism has exacted an enormous toll on the Republic of Turkey, a secular democracy with a 99.8% Muslim population. From 1984 to 2000, an estimated 30,000 to 35,000 Turkish citizens were killed by a nearly continuous stream of terrorism-related events. During this period, the Partiya Karekerren Kurdistan (PKK), a Kurdish separatist group (re-named KADEK in 2002), was responsible for the vast majority of terrorism-related events (and casualties), which disproportionately affected the eastern and southeastern regions of Turkey, in which the PKK has focused its activities. Most terrorist attacks over the past two decades have been bombings or shootings that produced or = 30 casualties (eight shootings, five bombings, and two arsons). The maximum number of casualties produced by any of these events was 93 in the Hotel Madimak arson attack by the Turkish Islamic Movement in 1993. This pattern suggests that terrorist attacks in Turkey rarely required more than local systems of emergency medical response, except in rural areas where Emergency Medical Services (EMS) are routinely provided by regional military resources. The last decade has seen the development of several key systems of local emergency response in Turkey, including the establishment of the medical specialty of Emergency Medicine, the establishment of training programs for EMS providers, the spread of a generic, Turkish hospital emergency plan based on the Hospital Emergency Incident Command System, and the spread of advanced training in trauma care modeled after Advanced Trauma Life Support.

  6. Façade fires in Swedish school buildings

    Directory of Open Access Journals (Sweden)

    Johansson Nils


    Full Text Available Fires outside school buildings caused by arson are a major problem in Sweden. The initial fire source can involve rubbish or other types of combustibles that can be found at or sometimes brought to the school. As the external fire develops the flames will extend along the façade. If the building is a one-story building, which is a common construction in Swedish school buildings, the fire can spread to the attic and further on to the rest of the building. A large research project was initiated in 2008 by the Swedish Fire Research Board in order to reduce the number and consequences of arson fires in school buildings. In this paper an evaluation of some technical systems that can be used to mitigate consequences of exterior fires is presented. The evaluation includes a literature review, experimental studies and a cost-benefit analysis. The study showed that some systems have clear cost-benefit advantages for the protection of school buildings in places where a high fire frequency can be expected.

  7. Analysis of forest fires causes and their motivations in northern Algeria: the Delphi method

    Directory of Open Access Journals (Sweden)

    Meddour-Sahar O


    Full Text Available Forest fires in Algeria are mostly human-caused and result from local social behavior, whether voluntary (arson or involuntary (negligence. Understanding the reasons why fires start is, therefore, a crucial factor in preventing or reducing their incidence, developing significant prevention efforts and designing specific fire prevention campaigns. The Delphi method is a promising tool for improving knowledge about how fire starts and why, and above all helps reduce the number of fires started by unknown causes, the majority type in Algeria. The Delphi method uses a set of procedures for eliciting and refining the opinions of a panel of experts on a particular subject of interest. This method was used in three case studies, in coastal or inner wilayas (provinces selected from a highly fire-prone area in north-central Algeria. Results showed the traditional use of fire in agriculture and forestry, in situations related to land use changes and in interpersonal conflicts are the major causes of voluntary fires. For involuntary events (negligence, experts unanimously identified the importance of the restart of fire, caused by fire crews who do not ensure the mopping up of controlled fires (91.49% and the negligent use of agricultural fires, particularly stubble burning (80.14%. For voluntary fires (arson, results highlight the importance of fires set for land use changes (77.30%, pyromania (67.38% and honey gathering (62.41%. Illegal dumping and burning of garbage was also mentioned by responders in all study-areas.

  8. Stereolithographic models of the solvent-accessible surface of biopolymers. Topical report

    Energy Technology Data Exchange (ETDEWEB)

    Bradford, J. [Olathe South High School, KS (United States); Noel, P. [Center High School, Kansas City, MO (United States); Emery, J.D. [and others


    The solvent-accessible surfaces of several biopolymers were calculated. As part of the DOE education outreach activity, two high school students participated in this project. Computer files containing sets of triangles were produced. These files are called stl files and are the ISO 9001 standard. They have been written onto CD-ROMs for distribution to American companies. Stereolithographic models were made of some of them to ensure that the computer calculations were done correctly. Stereolithographic models were made of interleukin 1{beta} (IL-1{beta}), three antibodies (an anti-p-azobenzene arsonate, an anti-Brucella A cell wall polysaccharide, and an HIV neutralizing antibody), a triple stranded coiled coil, and an engrailed homeodomain. Also, the biopolymers and their files are described.

  9. Criminality in men with Klinefelter's syndrome and XYY syndrome

    DEFF Research Database (Denmark)

    Krag, Kirstine Stochholm; Bojesen, Anders; Jensen, Anne Skakkebæk


    Objective To investigate the criminal pattern in men between 15 and 70 years of age diagnosed with 47,XXY (Klinefelter's syndrome (KS)) or 47,XYY compared to the general population. Design Register-based cohort study comparing the incidence of convictions among men with KS and with 47,XYY with age......- and calendar-matched samples of the general population. Crime was classified into eight types (sexual abuse, homicide, burglary, violence, traffic, drug-related, arson and ‘others’). Setting Denmark 1978–2006. Participants All men diagnosed with KS (N=934) or 47,XYY (N=161) at risk and their age- and calendar...... risk of traffic and drug-related offenses. The incidence of convictions was significantly increased among men with 47,XYY compared to controls with a HR of 1.42 (95% CI 1.14 to 1.77, p

  10. Forensic science: the truth is out there (United States)

    Herold, Lynne D.


    Criminalistics, one of the many sub-divisions of forensic science, is an applied science in which items of evidence are analyzed to provide investigative information and scientific evidence to be used in courts of law. Laboratories associated with governmental public agencies are typically involved in criminal cases as opposed to civil cases, and those types of cases that fall within the jurisdiction of the particular agency. Common analytical divisions within criminalistics laboratories include blood alcohol testing, toxicology, narcotics, questioned documents, biology, firearms, latent fingerprints, physical and trace evidence sections. Specialized field investigative services may be provided in the areas of clandestine drug laboratories and major crimes (firearms, biology, trace, arson/explosives). Forensic science best practice requires the use of non-destructive testing whenever reasonably possible. Several technically difficult situations (bodies and evidence encased in cement and metal) are presented as a challenge to audience.

  11. Property Crimes in Russia (1700–1864: law Enforcement Practice

    Directory of Open Access Journals (Sweden)

    Natalia V. Lebedeva


    Full Text Available The article deals with considerations of Russian law enforcement practices in regard to property crimes between 1700-1864. The cases about thefts, robberies, embezzlements, fraud, arson and other property related crimes from the Central Archive of Nizhegolodskaya oblast are analyzed. The study shows, that the property related crimes, especially in the first half of ХIХ century were predominant. The articles features studies by N.A. Neklyudov and E.N. Anuchin, who illustrated the law enforcement practice in the first half of XIX century (1827–1846. The criminal statistics reflects significant figures in property crimes committed by peasants from 1847 to 1856 (in 44 Provinces of the Russian Empire. The statistics is considered in this article on the base of official records: Statistical Annals of the Russian Empire.

  12. Safeguards summary event list (SSEL), January 1, 1990--December 31, 1995

    Energy Technology Data Exchange (ETDEWEB)



    The Safeguards Summary Event List (SSEL), Vol. 2, Rev. 4, provides brief summaries of several hundred safeguards-related events involving nuclear material or facilities regulated by the U.S. Nuclear Regulatory Commission (NRC) which occurred and were reported from January 1, 1990, rough December 31, 1995. Because of public interest, the Miscellaneous category includes a few events which involve either source material, byproduct material, or natural uranium which are exempt from safeguards requirements. Events are described under the categories of Bomb-related, Intrusion, Missing and/or Allegedly Stolen, Transportation-related, Tampering/Vandalism, Arson, Firearms, Radiological Sabotage, Nonradiological Sabotage, and Miscellaneous. The information contained in the event descriptions is derived primarily from official NRC reporting channels.

  13. Southeast U.S. burns (United States)

    Maggs, William Ward

    Human beings were responsible for most of 12,000 forest fires in the southeastern United States that burned for 10 days in late October and early November 1987. 910 km2, mostly hardwood forest, were destroyed in the fires, with arson and carelessness as the primary causes, according to the U.S. Department of Agriculture Forest Service.Measured in monetary terms, the toll was more than $40 million in resource and property damage. While the amount of forest burned did not rival the 3390 km2 lost to fires in the western United States last summer, the human impact was severe in the southeast and all along the East Coast. Favorable winds blew smoke from the southern and central Appalachians as far north as New England and as far east as Delaware, and cool fall air close to the ground prevented the smoke from rising, thickening the air in many northeastern cities on November 8 and 9.

  14. Prosperity Will Prevail

    Institute of Scientific and Technical Information of China (English)


    "Social stability is the precondition for prosperity. Who wants to trade a peaceful and prosperous life for turmoil?"-Tanzen Lhundup, Research Fellow and Vice Director at the Social and Economics Institute,China Tibetology Research Center Tranquility was smashed in Lhasa,capital city of Tibet Autonomous Region on March 14. Armed with stones, bricks and sticks,the rioters left a trail of crimes,including beatings,smashings,Iootings and arson,victimizing or- dinary residents in the city. How did the violence happen? And what was the impact? On March 24,Beijing Review Feng Jianghua interviewed Tanzen Lhundup,Research Fellow and Vice Director at the Social and Economics Institute,China Tibetology Research Center.

  15. Diminished responsibility as a mitigating circumstance in juvenile offenders' legal judgments. (United States)

    Siegal, M


    The legal judgments of 20 juvenile offenders and 20 non-offenders were examined for three types of crimes: assault, arson and treason. Mitigating circumstances cast in the form of an inability to control events consisted of brain damage, passion and economic need, in contrast to a situation in which no mitigating circumstances were offered. The results indicated that despite the often-made legal argument, neither group regarded passion and economic need as circumstances warranting the reduction of sentencing. Compared to the non-offender group, offenders rated brain damage as less mitigating. While non-offenders rated passion and economic need more severely than brain damage, offenders' ratings of the three circumstances did not differ significantly. The findings are discussed in terms of perceptions of control and structural-developmental approaches to socialization.

  16. Reactions to youth crime: perceptions of accountability and competency. (United States)

    Ghetti, S; Redlich, A D


    Recent changes in juvenile justice policies have stimulated debate among legal professionals and social scientists. As such, public opinion concerning juvenile offenders is an important and timely topic for empirical study. In the present study, respondents read a scenario about a juvenile who committed a crime, and then decided on a sentence and rated perceptions of the juvenile's accountability and legal competence. Four between-subject factors were manipulated: age of the defendant (11 versus 14 versus 17 years), type of crime (shooting versus arson), crime outcome (victim injured versus died), and time delay between the instigating incident and the crime (immediately versus one day). The type and outcome of the crime were major motivating factors in sentencing decisions and perceptions of legal competence, and, although younger offenders were seen as less accountable and less competent than older offenders, sentence allocation and attitudes towards punishment were not significantly affected by offender age.

  17. The use of L-ascorbic acid in speciation of arsenic compounds in drinking water

    Directory of Open Access Journals (Sweden)

    Marjanović Nikola J.


    Full Text Available Arsenic speciation, besides total arsenic content determination, is very important in analysis of water, foodstuffs, and environmental samples, because of varying degrees of toxicity of different species. For such purpose hydride generation atomic absorption spectrometry can be used based on the generation of certain types of hydride, depending on the pH value and pretreatment in different reaction media. In this study, we have investigated the effect of L-ascorbic acid as the reaction medium as well as the pre-reducing agent in speciation of arsenic by hydride generation-atomic absorption spectrometry in order to determine monomethyl arsonic acid (MMA in the presence of inorganic forms of arsenic.


    Thunaes, A.; Rabbits, F.T.; Hester, K.D.; Smith, H.W.


    A process is described for extracting uranlum from uranium containing material, such as a low grade pitchblende ore, or mill taillngs, where at least part of the uraniunn is in the +4 oxidation state. After comminuting and magnetically removing any entrained lron particles the general material is made up as an aqueous slurry containing added ferric and manganese salts and treated with sulfur dioxide and aeration to an extent sufficient to form a proportion of oxysulfur acids to give a pH of about 1 to 2 but insufficient to cause excessive removal of the sulfur dioxide gas. After separating from the solids, the leach solution is adjusted to a pH of about 1.25, then treated with metallic iron in the presence of a precipitant such as a soluble phosphate, arsonate, or fluoride.

  19. Surface-enhanced Raman scattering (SERS) characterization of trace organoarsenic antimicrobials using silver/polydimethylsiloxane nanocomposites. (United States)

    Olavarría-Fullerton, Jenifier; Wells, Sabrina; Ortiz-Rivera, William; Sepaniak, Michael J; De Jesús, Marco A


    Organoarsenic drugs such as roxarsone and 4-arsanilic acid are poultry feed additives widely used in US broilers to prevent coccidosis and to enhance growth and pigmentation. Despite their veterinary benefits there has been growing concern about their use because over 90% of these drugs are released intact into litter, which is often sold as a fertilizing supplement. The biochemical degradation of these antimicrobials in the litter matrix can release significant amounts of soluble As(III) and As(V) to the environment, representing a potential environmental risk. Silver/polydimethylsiloxane (Ag/PDMS) nanocomposites are a class of surfaceenhanced Raman scattering (SERS) substrates that have proven effective for the sensitive, reproducible, and field-adaptable detection of aromatic acids in water. The work presented herein uses for the first time Ag/PDMS nanocomposites as substrates for the detection and characterization of trace amounts of roxarsone, 4-arsanilic acid, and acetarsone in water. The results gathered in this study show that organoarsenic species are distributed into the PDMS surface where the arsonic acid binds onto the embedded silver nanoparticles, enhancing its characteristic 792 cm(-1) stretching band. The chemisorption of the drugs to the metal facilitates its detection and characterization in the parts per million to parts per billion range. An extensive analysis of the distinct spectroscopic features of each drug is presented with emphasis on the interactions of the arsonic acid, amino, and nitro groups with the metal surface. The benefits of SERS based methods for the study of arsenic drugs are also discussed.

  20. [Alternatives to animal experimentation v.s. animal rights terrorism]. (United States)

    Kurosawa, Tsutomu Miki


    Systematic modern animal experimentation was established by Bernard Claude who wrote "An Introduction to the Study of Experimental Medicine" in 1865. At this point, the public was already asking that the pain and distress of experimental animals be reduced. For this, scientists, William Russell and Rex Burch in 1959 proposed the principles of alternatives to animal experimentation, the "3Rs". Since that time, animal welfare advocates have promoted the 3Rs concept in biomedical research communities. However, cruel animal experiments have continued and there are reports of radical extremists showing their opposition by invasion, arson, theft and even bombing of institutions involved, resulting in killing of the animals. SHAC, one extremist group believed to be animal welfare activitists was recognized as a terrorist group after the 9.11 tragedy in USA and the government viewed their activities very seriously. In 2001, British animal extremists invaded Japanese universities and stole laboratory resources; one individual was arrested and sentenced to prison for three years; Japanese who assisted in the incident were arrested and one was sentenced for one year. In 2006, SHAC USA members were prosecuted and sentenced for up to 6 years for their terrorism activities including arson. We need to consider the background of these activities which are financially supported by animal welfare advocates. The way we, as scientists who conduct such experiments can respond is by promoting alternatives to this experimentation. In Japan, the animal welfare law was revised in 2005 stressing the importance of 3Rs in scientific activities with animals. The promotion of 3Rs should be strengthened in the pharmaceutical community.

  1. Variation in the toxicity of arsenic compounds to microorganisms and the suppression of the inhibitory effects by phosphate. (United States)

    Da Costa, E W


    The toxicity of potassium arsenate, as measured by retardation or inhibition of growth on solid nutrient media, showed wide variation among different fungi but was consistently reduced by the addition of large amounts of potassium phosphate, with both arsenic-sensitive and arsenic-tolerant fungi. Poria monticola was completely inhibited by 0.0025 M arsenate but was progressively less inhibited as the phosphate content of the medium increased and grew slowly at 0.04 M arsenate when 0.16 M KH(2)PO(4) was added. Cladosporium herbarum showed 36% reduction in growth at 0.08 M arsenate in a low-phosphate medium, but when 0.01 M KH(2)PO(4) was added, arsenate concentrations up to 0.64 M (at which the medium contains 4.8% As) caused no reduction in growth rate. Addition of phosphate also reduced the toxicity of potassium arsenite but not that of dimethyl sodium arsonate (sodium cacodylate). The counteracting effect of phosphate on arsenate toxicity was found to occur with every one of a wide variety of microorganisms tested. The author interprets the results as supporting the thesis that the fungitoxicity of arsenate is due to its competitive interference with phosphorus in oxidative phosphorylation and not to a reaction with the -SH groups of essential proteins. The latter mechanism is, however, probably operative with dimethyl sodium arsonate. The practical implications of the counter-inhibition phenomenon in laboratory investigations and standard tests of arsenical fungicides, in biochemical research, and in the commercial use of arsenical biocides are set out.

  2. Recommendations on the use of prescribed burning practices in grassland conservation - An evidence-based study from Hungary (United States)

    Tóthmérész, Béla; Valkó, Orsolya; Török, Péter; Végvári, Zsolt; Deák, Balázs


    Fire as a natural disturbance has been present in most European grasslands. In parallel controlled use of burning was an important part of the traditional landscape management for millennia. It was used to reduce litter and suppress woody vegetation as well as to maintain open landscapes suitable for farming. Recently, human activities have a considerable impact on natural fire regimes through habitat fragmentation, cessation of traditional grassland management and climate change. Nowadays the majority of human-ignited fires are uncontrolled burnings and arson, which have serious negative impacts on human life, property and can be detrimental also from the nature conservation point of view. Despite fire was widely applied in the past and the considerable extension and frequency of current grassland fires, the impact of fire on the grassland biodiversity is still scarcely documented in Europe. The aim of our study was to gather practical knowledge and experiences from Hungary concerning the effects of fire on grasslands. To fulfil this aim we sent questionnaires to experts from Hungarian national park directorates to gather unpublished data and field observations concerning the effects of burning on grasslands. Based on the answers for the questionnaires fire regularly occur in almost every grassland types in Hungary. We found that effects of fire are habitat-specific. One hand uncontrolled burning and arson have serious detrimental impacts on many endangered species (ground-dwelling birds, such as Asio flammeus, Tringa totanus and Vanellus vanellus; or lizards, such as Ablepharus kitaibelii). On the other hand in several cases fire has a positive effect on the habitat structure and favours species of high nature conservation interest (plant species, such as Adonis volgensis, Chamaecytisus supinus and Pulsatilla grandis; butterflies, such as Euphydryas aurinia; bird species such as Circus aeruginosus and Larus cachinnans). Our results suggest that even uncontrolled

  3. The Spatial and Temporal Analysis of Steppe Fires in Lake Elton’s Area Based on RSD

    Directory of Open Access Journals (Sweden)

    Shinkarenko Stanislav Sergeevich


    Full Text Available The study analyzed the satellite imagery for the period of 1985-2014 in order to identify the causes of wildfires in Lake Elton’s surroundings. It was found that in the early 21st century fires have the greatest impact on the landscape, which is caused by the decrease in the number of livestock grazing and reduced steppe loads in the late 1990s. The map of the fire frequency in the researched area, and t he map of areas recovering from fires in different years were developed on the basis of remote sensing data (RSD. The investigation of Landsat space imagery found that 54 % of the territory since 2004 has been subject to a prairie fire at least once. The maximum frequency of occurrence is marked for the southern area of Buluhta-Lake where eight fires were registered for the last decad. Most fires are caused by human factors: deliberate or spontaneous arson, military trials. The factors limiting the fires are: degraded pastures, roads, landforms and the elements of the hydrological network. The resulting materials allow to effectively organize further ground survey of these areas for a complete description and assessment of revegetation and their relation to the duration of pyrogenic successions.

  4. Forensic science information needs of patrol officers: The perceptions of the patrol officers, their supervisors and administrators, detectives, and crime scene technicians (United States)

    Aydogdu, Eyup

    Thanks to the rapid developments in science and technology in recent decades, especially in the past two decades, forensic sciences have been making invaluable contributions to criminal justice systems. With scientific evaluation of physical evidence, policing has become more effective in fighting crime and criminals. On the other hand, law enforcement personnel have made mistakes during the detection, protection, collection, and evaluation of physical evidence. Law enforcement personnel, especially patrol officers, have been criticized for ignoring or overlooking physical evidence at crime scenes. This study, conducted in a large American police department, was aimed to determine the perceptions of patrol officers, their supervisors and administrators, detectives, and crime scene technicians about the forensic science needs of patrol officers. The results showed no statistically significant difference among the perceptions of the said groups. More than half of the respondents perceived that 14 out of 16 areas of knowledge were important for patrol officers to have: crime scene documentation, evidence collection, interviewing techniques, firearm evidence, latent and fingerprint evidence, blood evidence, death investigation information, DNA evidence, document evidence, electronically recorded evidence, trace evidence, biological fluid evidence, arson and explosive evidence, and impression evidence. Less than half of the respondents perceived forensic entomology and plant evidence as important for patrol officers.

  5. 地铁应对恐怖袭击时的人流模型及其建筑安全设计%Design of subway passenger flow model and its architectural safety when terrorist attack

    Institute of Scientific and Technical Information of China (English)



      地铁作为一种高风险建筑设施,面临着各种形式的恐怖威胁。文中分析了可能威胁到地铁运营安全的爆炸、生化及放射性袭击、纵火等主要恐怖活动,并从地铁设计、现行地铁设计规范、制度管理、设备设施等方面,给出了地铁应对恐怖袭击的解决方案。%  As a kind of high risk building facilities, subway is faced with various terroristic threats. Some terrorist activities which could threaten the subway operation safety are analyzed, such as explosion, bio-chemical and radioactive attack, and arson. The solution to the terrorist attack is provided on subway design, current design specifications, systematic management and Equipment and facilities.

  6. Refugees welcome? A dataset on anti-refugee violence in Germany

    Directory of Open Access Journals (Sweden)

    David Benček


    Full Text Available The recent rise of xenophobic attacks against refugees in Germany has sparked both political and scholarly debates on the drivers, dynamics, and consequences of right-wing violence. Thus far, a lack of systematic data collection and data processing has inhibited quantitative analysis to help explain this current social phenomenon. This paper presents a georeferenced event dataset on anti-refugee violence and social unrest in Germany in 2014 and 2015 that is based on information collected by two civil society organizations, the Amadeu Antonio Foundation and PRO ASYL, who publicize their data in an online chronicle. We webscraped this information to create a scientifically usable dataset that includes information on 1 645 events of four different types of right-wing violence and social unrest: xenophobic demonstrations, assault, arson attacks, and miscellaneous attacks against refugee housing (such as swastika graffiti. After discussing how the dataset was constructed, we offer a descriptive analysis of patterns of right-wing violence and unrest in Germany in 2014 and 2015. This article concludes by outlining preliminary ideas on how the dataset can be used in future research of various disciplines in the social sciences.

  7. Impact assessment of the 1977 New York City blackout. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Corwin, J. L.; Miles, W. T.


    This study was commissioned by the Division of Electric Energy Systems (EES), Department of Energy (DOE) shortly after the July 13, 1977 New York City Blackout. The objectives were two-fold: to assess the availability and collect, where practical, data pertaining to a wide variety of impacts occurring as a result of the blackout; and to broadly define a framework to assess the value of electric power reliability from consideration of the blackout and its effects on individuals, businesses, and institutions. The impacts were complex and included both economic and social costs. In order to systematically classify the most significant of these impacts and provide guidance for data collection, impact classification schemes were developed. Major economic impact categories examined are business; government; utilities (Consolidated Edison); insurance industry; public health services; and other public services. Impacts were classified as either direct or indirect depending upon whether the impact was due to a cessation of electricity or a response to that cessation. The principal economic costs of the blackout are shown. Social impacts, i.e., the changes in social activities and adaptations to these changes were particularly significant in New York due to its unique demographic and geographic characteristics. The looting and arson that accompanied the blackout set aside the NYC experience from other similar power failures. (MCW)

  8. Do adolescent drug users fare the worst? Onset type, juvenile delinquency, and criminal careers. (United States)

    DeLisi, Matt; Angton, Alexia; Behnken, Monic P; Kusow, Abdi M


    Although substance abuse often accompanies delinquency and other forms of antisocial behavior, there is less scholarly agreement about the timing of substance use vis-à-vis an individual's antisocial trajectory. Similarly, although there is extraordinary evidence that onset is inversely related to the severity of the criminal career, there is surprisingly little research on the offense type of onset or the type of antisocial behavior that was displayed when an individual initiated his or her offending career. Drawing on data from a sample of serious adult criminal offenders (N = 500), the current study examined 12 forms of juvenile delinquency (murder, rape, robbery, aggravated assault, burglary, larceny, auto theft, arson, weapons, sexual offense, drug sales, and drug use) in addition to age at arrest onset, age, sex, race to explore their association with chronicity (total arrests), extreme chronicity (1 SD above the mean which was equivalent to 90 career arrests), and lambda (offending per year). The only onset offense type that was significantly associated with all criminal career outcomes was juvenile drug use. Additional research on the offense type of delinquent onset is needed to understand launching points of serious antisocial careers.

  9. Eco-Terrorism? Countering Dominant Narratives of Securitisation: a Critical, Quantitative History of the Earth Liberation Front (1996-2009

    Directory of Open Access Journals (Sweden)

    Michael Loadenthal


    Full Text Available The Earth Liberation Front (ELF has carried out acts of political violence and ‘economic sabotage’ characterized by a pattern of behaviour reflecting tactical and targeting selections, communications strategies, and geographic location. The movement’s attacks typically focus on the destruction of property located in ‘soft targets’ associated with commercial and residential construction, the automotive industry, and a variety of local, national and multinational business interests. These sites are routinely targeted through a variety of means ranging from graffiti to sabotage to arson. Geographically, the movement has focused its attacks in the United States and Mexico, and, to a limited extent, countries on the European, South American and Australian continents. The findings presented in this article were developed through a statistical analysis of the movement’s attack history as presented through its above-ground support network. This is discussed in critical contrast to assertions about the movement’s alleged terrorist behaviour found in most academic and government literature. This study seeks to present an incident-based historical analysis of the ELF that is not situated within a logic of securitization. In doing so, it challenges traditional scholarship based on statistical findings.

  10. MSMA resistance studies. (United States)

    Camper, N D; Keese, R J; Coker, P S


    Monosodium methanearsonate (MSMA)-resistant and -susceptible common cocklebur (Xanthium strumarium L.) and cotton (Gossypium hirsutum L.) were treated with MSMA. Plant parameters analyzed were: glutathione synthetase activity, selected amino acid (arginine, glutamic acid, alanine, citrulline, glutamine, and glutathione) content and arsenic content (MSMA, total arsenic, and arsonate). No reduction of arsenic from the parent pentavalent form present in MSMA to the trivalent form was detected. Arginine, glutamic acid, and glutamine content increased in tissue three days after MSMA treatment. Glutathione content decreased during the first three days after treatment; however, five days after treatment the resistant biotype of cocklebur and cotton had elevated glutathione levels (8-20 times greater, respectively). Glutathione Synthetase activity was higher in cotton than in either of the cocklebur biotypes; MSMA did not affect its activity in cotton or either cocklebur biotype. Resistant biotypes have a slightly higher activity than the susceptible biotype. Tolerance of cotton to MSMA may be related to glutathione synthetase activity and possibly to the presence of phytochelatins. Also, increased glutathione levels in the resistant biotype may implicate phytochelatin involvement in the resistance mechanism.

  11. Forensic application of gas chromatography-differential mobility spectrometry with two-way classification of ignitable liquids from fire debris. (United States)

    Lu, Yao; Harrington, Peter B


    With respect to the emerging role of forensic science for arson investigation, a low cost and promising onsite detection method for ignitable liquids is desirable. Gas chromatography-differential mobility spectrometry (GC-DMS) was investigated as a tool for analysis of ignitable liquids from fire debris. Headspace solid-phase microextraction (SPME) was applied as the preconcentration and sampling method. The combined information afforded by gas chromatography and differential mobility spectrometry provided unique two-way patterns for each sample of ignitable liquid. Two-way GC-DMS data were classified into one of seven ignitable liquids using a fuzzy rule-building expert system (FuRES). The performance of the classifier was validated using bootstrap Latin partitions (BLPs) and also compared to optimized partial least-squares (PLS) classifiers. Better prediction results can be obtained by using two-way GC-DMS data than only using one-way total ion chromatograms or integrated differential mobility spectra. FuRES models constructed with the neat ignitable liquids identified the spiked samples from simulated fire debris with 99.07 +/- 0.04% accuracy.

  12. Adjunctive role of dental restorations in personal identification of burnt victims (United States)

    Vandrangi, Sameer Kumar; Radhika, MB; Paremala, K; Reshma, V; Sudhakara, M; Hosthor, Sreelatha S


    Background: Fire remains one of the major causes of morbidity and mortality throughout the world and identification of a body from the fatal fire remains a daunting task. Several forensic cases involve interpretation of burnt human bodies from airline and automobile accidents, bombings and unlawful cremation. Fire is also involved in homicides, suicides, accidental death, arson and in attempts to destroy forensic evidence in criminal cases. Soft tissue destruction from fire can be so extensive that conventional methods of identification may be impossible. However, teeth survive even high temperatures due to their resistant composition and so, obviously, the restorative material housed in the teeth are even more secure and can yield valuable information in personal identification. Aim: To assess the usefulness of most common restorations in personal identification in burnt cases. Materials and Methods: The study was conducted on 40 extracted teeth which were divided into four groups (Group 1 - Unrestored teeth, Group 2 - Amalgam restored, Group 3 - Glass ionomer restored and Group 4 - Composite resin restored teeth. The effect of incineration at 200°C, 400°C, 600°C, 800°C, 1000°C for 15 min at each target temperature followed by subsequent cooling was studied. Results: Amalgam restoration was resistant and intact even at 1000°C, whereas GIC and composite restoration are identifiable till 600°C, the residual cavity preparation leaves a clue for narrowing down the spectrum of identification. PMID:27194881

  13. Sorptive Uptake Studies of an Aryl-Arsenical with Iron Oxide Composites on an Activated Carbon Support

    Directory of Open Access Journals (Sweden)

    Jae H. Kwon


    Full Text Available Sorption uptake kinetics and equilibrium studies for 4-hydroxy-3-nitrobenzene arsonic acid (roxarsone was evaluated with synthetic magnetite (Mag-P, commercial magnetite (Mag-C, magnetite 10%, 19%, and 32% composite material (CM-10, -19, -32 that contains granular activated carbon (GAC, and synthetic goethite at pH 7.00 in water at 21 °C for 24 h. GAC showed the highest sorptive removal of roxarsone and the relative uptake for each sorbent material with roxarsone are listed in descending order as follows: GAC (471 mg/g > goethite (418 mg/g > CM-10 (377 mg/g CM-19 (254 mg/g > CM-32 (227 mg/g > Mag-P (132 mg/g > Mag-C (29.5 mg/g. The As (V moiety of roxarsone is adsorbed onto the surface of the iron oxide/oxyhydrate and is inferred as inner-sphere surface complexes; monodentate-mononuclear, bidentate-mononuclear, and bidentate-binuclear depending on the protolytic speciation of roxarsone. The phenyl ring of roxarsone provides the primary driving force for the sorptive interaction with the graphene surface of GAC and its composites. Thus, magnetite composites are proposed as multi-purpose adsorbents for the co-removal of inorganic and organic arsenicals due to the presence of graphenic and iron oxide active adsorption sites.

  14. Visualization of latent fingerprint corrosion of metallic surfaces. (United States)

    Bond, John W


    Chemical reactions between latent fingerprints and a variety of metal surfaces are investigated by heating the metal up to temperatures of approximately 600 degrees C after deposition of the fingerprint. Ionic salts present in the fingerprint residue corrode the metal surface to produce an image of the fingerprint that is both durable and resistant to cleaning of the metal. The degree of fingerprint enhancement appears independent of the elapsed time between deposition and heating but is very dependent on both the composition of the metal and the level of salt secretion by the fingerprint donor. Results are presented that show practical applications for the enhancement to fingerprints deposited in arson crime scenes, contaminated by spray painting, or deposited on brass cartridge cases prior to discharge. The corrosion of the metal surface is further exploited by the demonstration of a novel technique for fingerprint enhancement based on the electrostatic charging of the metal and then the preferential adherence of a metallic powder to the corroded part of the metal surface.

  15. Shewanella oneidensis MR-1-Induced Fe(III) Reduction Facilitates Roxarsone Transformation. (United States)

    Chen, Guowei; Ke, Zhengchen; Liang, Tengfang; Liu, Li; Wang, Gang


    Although microbial activity and associated iron (oxy)hydroxides are known in general to affect the environmental dynamics of 4-hydroxy-3-nitrobenzenearsonic acid (roxarsone), the mechanistic understanding of the underlying biophysico-chemical processes remains unclear due to limited experimental information. We studied how Shewanella oneidensis MR-1 -a widely distributed metal-reducing bacterium, in the presence of dissolved Fe(III), affects roxarsone transformations and biogeochemical cycling in a model aqueous system. The results showed that the MR-1 strain was able to anaerobically use roxarsone as a terminal electron acceptor and to convert it to a single product, 3-amino-4-hydroxybenzene arsonic acid (AHBAA). The presence of Fe(III) stimulated roxarsone transformation via MR-1-induced Fe(III) reduction, whereby the resulting Fe(II) acted as an efficient reductant for roxarsone transformation. In addition, the subsequent secondary Fe(III)/Fe(II) mineralization created conditions for adsorption of organoarsenic compounds to the yielded precipitates and thereby led to arsenic immobilization. The study provided direct evidence of Shewanella oneidensis MR-1-induced direct and Fe(II)-associated roxarsone transformation. Quantitative estimations revealed a candidate mechanism for the early-stage environmental dynamics of roxarsone in nature, which is essential for understanding the environmental dynamics of roxarsone and successful risk assessment.

  16. Microbial Transformation of Arsenic (United States)

    Stolz, J. F.


    Whether the source is natural or anthropogenic, it has become evident that arsenic is readily transformed by a great diversity of microbial species and has a robust biogeochemical cycle. Arsenic cycling primarily involves the oxidation of As(III) and the reduction of As(V). Over thirty arsenite oxidizing prokaryotes have been reported and include alpha, beta, and gamma Proteobacteria , Deinocci and Crenarchaeota. At least twenty species of arsenate-respiring prokaryotes are now known and include Crenarchaeota, thermophilic bacteria, low and high G+C gram positive bacteria, and gamma, delta, and epsilon Proteobacteria. These organisms are metabolically diverse, and depending on the species, capable of using other terminal electron acceptors (e.g., nitrate, selenate, fumarate, sulfate). In addition to inorganic forms (e.g., sodium arsenate) organoarsenicals can be utilized as a substrate. The feed additive roxarsone (3-nitro-4-hydroxyphenyl arsonic acid) has been shown to readily degrade leading to the release of inorganic arsenic (e.g., As(V)). Degradation proceeds via the cleavage of the arsenate functional group or the reduction of the nitro functional group and deamination. The rapid degradation (within 3 days) of roxarsone by Clostridium sp. strain OhILAs appears to follow the latter pathway and may involve Stickland reactions. The activities of these organisms affect the speciation and mobilization of arsenic, ultimately impacting water quality.

  17. Anion inhibition studies of the α-carbonic anhydrase from the protozoan pathogen Trypanosoma cruzi, the causative agent of Chagas disease. (United States)

    Pan, Peiwen; Vermelho, Alane Beatriz; Scozzafava, Andrea; Parkkila, Seppo; Capasso, Clemente; Supuran, Claudiu T


    The protozoan pathogen Trypanosoma cruzi, the causative agent of Chagas disease, encodes an α-class carbonic anhydrase (CA, EC, TcCA, which was recently shown to be crucial for its life cycle. Thiols, a class of strong TcCA inhibitors, were also shown to block the growth of the pathogen in vitro. Here we report the inhibition of TcCA by inorganic and complex anions and other molecules interacting with zinc proteins, such as sulfamide, sulfamic acid, phenylboronic/arsonic acids. TcCA was inhibited in the low micromolar range by iodide, cyanate, thiocyanate, hydrogensulfide and trithiocarbonate (KIs in the range of 44-93 μM), but the best inhibitor was diethyldithiocarbamate (KI=5 μM). Sulfamide showed an inhibition constant of 120 μM, but sulfamic acid was much less effective (KI of 10.6 mM). The discovery of diethyldithiocarbamate as a low micromolar TcCA inhibitor may be useful to detect leads for developing anti-Trypanosoma agents with a diverse mechanism of action compared to clinically used drugs (benznidazole, nifurtimox) for which significant resistance emerged.

  18. Breath alcohol, multisensor arrays, and electronic noses (United States)

    Paulsson, Nils; Winquist, Fredrik


    The concept behind a volatile compound mapper, or electronic nose, is to use the combination of multiple gas sensors and pattern recognition techniques to detect and quantify substances in gas mixtures. There are several different kinds of sensors which have been developed during recent years of which the base techniques are conducting polymers, piezo electrical crystals and solid state devices. In this work we have used a combination of gas sensitive field effect devices and semiconducting metal oxides. The most useful pattern recognition routine was found to be ANNs, which is a mathematical approximation of the human neural network. The aim of this work is to evaluate the possibility of using electronic noses in field instruments to detect drugs, arson residues, explosives etc. As a test application we have chosen breath alcohol measurements. There are several reasons for this. Breath samples are a quite complex mixture contains between 200 and 300 substances at trace levels. The alcohol level is low but still possible to handle. There are needs for replacing large and heavy mobile instruments with smaller devices. Current instrumentation is rather sensitive to interfering substances. The work so far has dealt with sampling, how to introduce ethanol and other substances in the breath, correlation measurements between the electronic nose and headspace GC, and how to evaluate the sensor signals.

  19. Adjunctive role of dental restorations in personal identification of burnt victims

    Directory of Open Access Journals (Sweden)

    Sameer Kumar Vandrangi


    Full Text Available Background: Fire remains one of the major causes of morbidity and mortality throughout the world and identification of a body from the fatal fire remains a daunting task. Several forensic cases involve interpretation of burnt human bodies from airline and automobile accidents, bombings and unlawful cremation. Fire is also involved in homicides, suicides, accidental death, arson and in attempts to destroy forensic evidence in criminal cases. Soft tissue destruction from fire can be so extensive that conventional methods of identification may be impossible. However, teeth survive even high temperatures due to their resistant composition and so, obviously, the restorative material housed in the teeth are even more secure and can yield valuable information in personal identification. Aim: To assess the usefulness of most common restorations in personal identification in burnt cases . Materials and Methods: The study was conducted on 40 extracted teeth which were divided into four groups (Group 1 - Unrestored teeth, Group 2 - Amalgam restored, Group 3 - Glass ionomer restored and Group 4 - Composite resin restored teeth. The effect of incineration at 200°C, 400°C, 600°C, 800°C, 1000°C for 15 min at each target temperature followed by subsequent cooling was studied. Results: Amalgam restoration was resistant and intact even at 1000°C, whereas GIC and composite restoration are identifiable till 600°C, the residual cavity preparation leaves a clue for narrowing down the spectrum of identification.

  20. An investigation into effective methodologies for latent fingerprint enhancement on items recovered from fire. (United States)

    Gardner, Sarah Jane; Cordingley, Thomas H; Francis, Sean C


    A common assumption is that fire destroys fingerprint evidence. Recent studies have sought to challenge this assumption. This study presents a comparative evaluation of soot removal and fingerprint enhancement techniques, following fire(s) to ascertain optimal process efficacy for recovering fingerprints. Two car burns and a cremation oven were used to determine the temperature range. Temperatures of 300, 450 and 600°C were used in simulated, controlled fires wherein cars had prints deposited on rear view mirrors. Burning occurred in a shipping container designed to approximate the variables relating to car arson. Soot removal was undertaken by tape lifting, sodium hydroxide solution, or liquid latex casting. The fingerprint enhancement techniques comprised black magnetic, aluminium and black suspension powders, or cyanoacrylate fuming with BY40 dye. A fingerprint expert classified prints as un/identifiable according to standards to be submitted as evidence in court. Multinomial logistic regression analyses were performed on the data using a p value of fire-exposed fingerprints (which are not protected) is undertaken where suspected maximum temperatures are <450°C. Evaluation of optimal soot removal and fingerprint enhancement techniques should be conducted on a case by case basis.

  1. Reconstructing Salah Al-din Minbar of Al-Aqsa Mosque: Challenges and Results

    Directory of Open Access Journals (Sweden)

    Walid H. ABWEINI


    Full Text Available Salah Al-Din Minbar (pulpit has a distinguished value in Islamic art, which is originated from its historical value of being constructed 800 years ago representing a symbol of dignified historical era; and to its political value as this Minbar had formed an emotional spur during the Crusades; and above all it is considered as one of the most beautiful and finest pieces of Islamic decoration art. After a devastating arson blaze nothing was left of the Minbar except some wooden pieces and few photographs that had been taken at previous periods of time. The need to rebuild and renovate Salah Al-Din Minbar of the Aqsa Mosque as similar to the original Minbar has arisen and met the Jordanian Royal mandate. This paper documents reconstructing the model Minbar to be exactly like the original one which was a sole job until the time, especially because of the decorations' diversity and the need to adopt the traditional craft techniques which require deliberate synthesized studies to prepare the drawings and construct the Minbar. The model Minbar was totally completed within 14 years.

  2. An improved bonded-polydimethylsiloxane solid-phase microextraction fiber obtained by a sol-gel/silica particle blend. (United States)

    Azenha, Manuel; Nogueira, Pedro; Fernando-Silva, A


    A novel procedure for solid-phase microextraction fiber preparation is presented, which combines the use of a rigid titanium alloy wire as a substrate with a blend of PDMS sol-gel mixture/silica particles, as a way of increasing both the mechanical robustness and the extracting capability of the sol-gel fibers. The approximately 30 microm average thick fibers displayed an improvement in the extraction capacity as compared to the previous sol-gel PDMS fibers, due to a greater load of stable covalently bonded sol-gel PDMS. The observed extraction capacity was comparable to that of 100 microm non-bonded PDMS fiber, having in this case the advantages of the superior robustness and stability conferred, respectively, by the unbreakable substrate and the sol-gel intrinsic characteristics. Repeatability (n=3) ranged 1-8% while fiber production reproducibility (n=3) ranged 15-25%. The presence of the silica particles was found to have no direct influence on the kinetics and mechanism of the extraction process, thus being possible to consider the new procedure as a refinement of the previous ones. The applicability potential of the devised fiber was illustrated with the analysis of gasoline under the context of arson samples.

  3. Some Wildfire Ignition Causes Pose More Risk of Destroying Houses than Others. (United States)

    Collins, Kathryn M; Penman, Trent D; Price, Owen F


    Many houses are at risk of being destroyed by wildfires. While previous studies have improved our understanding of how, when and why houses are destroyed by wildfires, little attention has been given to how these fires started. We compiled a dataset of wildfires that destroyed houses in New South Wales and Victoria and, by comparing against wildfires where no houses were destroyed, investigated the relationship between the distribution of ignition causes for wildfires that did and did not destroy houses. Powerlines, lightning and deliberate ignitions are the main causes of wildfires that destroyed houses. Powerlines were 6 times more common in the wildfires that destroyed houses data than in the wildfires where no houses were destroyed data and lightning was 2 times more common. For deliberate- and powerline-caused wildfires, temperature, wind speed, and forest fire danger index were all significantly higher and relative humidity significantly lower (P houses compared with wildfires where no houses were destroyed. For all powerline-caused wildfires the first house destroyed always occurred on the day of ignition. In contrast, the first house destroyed was after the day of ignition for 78% of lightning-caused wildfires. Lightning-caused wildfires that destroyed houses were significantly larger (P houses. Our results suggest that targeting fire prevention strategies around ignition causes, such as improving powerline safety and targeted arson reduction programmes, and reducing fire spread may decrease the number of wildfires that destroy houses.

  4. Digital Inventory and Documentation of Korea's Important Cultural Properties Using 3D Laser Scanning (United States)

    Dongseok, K.; Gyesoo, K.; Siro, K.; Eunhwa, K.


    As a country with 11 properties included on the World Heritage List and approximately 12,000 important cultural properties, Korea has been continuously carrying out the inventory and documentation of cultural properties to conserve and manage them since the 1960s. The inventory of cultural properties had been carried out by making and managing a register which recorded basic information mainly on state-designated cultural properties such as their size, quantity, and location. The documentation of cultural properties was also carried out by making measured drawings. However, the inventory and documentation done under the previous analog method had a limit to the information it could provide for the effective conservation and management of cultural properties. Moreover, in recent times important cultural properties have frequently been damaged by man-made and natural disasters such as arson, forest fires, and floods, so an alternative was required. Accordingly, Korea actively introduced digital techniques led by the government for the inventory and documentation of important cultural properties. In this process, the government established the concept of a digital set, built a more efficie nt integrated data management system, and created standardized guidelines to maximize the effectiveness of data acquisition, management, and utilization that greatly increased the level of digital inventory, documentation, and archiving.

  5. Development of off-line layer chromatographic and total reflection X-ray fluorescence spectrometric methods for arsenic speciation

    Energy Technology Data Exchange (ETDEWEB)

    Mihucz, Victor G. [Joint Research Group of Environmental Chemistry of Hungarian Academy of Sciences and L. Eoetvoes University, P. O. Box 32, H-1518 Budapest (Hungary); Hungarian Satellite Centre of Trace Elements Institute to UNESCO, P. O. Box 32, H-1518 Budapest (Hungary); Moricz, Agnes M. [L. Eoetvoes University, Department of Chemical Technology and Environmental Chemistry, P.O. Box 32, H-1518 Budapest (Hungary); Kroepfl, Krisztina [Joint Research Group of Environmental Chemistry of Hungarian Academy of Sciences and L. Eoetvoes University, P. O. Box 32, H-1518 Budapest (Hungary); Szikora, Szilvia [Joint Research Group of Environmental Chemistry of Hungarian Academy of Sciences and L. Eoetvoes University, P. O. Box 32, H-1518 Budapest (Hungary); Tatar, Eniko [Hungarian Satellite Centre of Trace Elements Institute to UNESCO, P. O. Box 32, H-1518 Budapest (Hungary); L. Eoetvoes University, Department of Inorganic and Analytical Chemistry, P.O. Box 32, H-1518 Budapest (Hungary); Parra, Lue Meru Marco [Universidad Centro-occidental Lisandro Alvarado, Decanato de Agronomia, Departamento de Quimica y Suelos Unidad de Analisis Instrumental, Apartado Postal 4076, Cabudare 3023 (Venezuela); Zaray, Gyula [Joint Research Group of Environmental Chemistry of Hungarian Academy of Sciences and L. Eoetvoes University, P. O. Box 32, H-1518 Budapest (Hungary) and Hungarian Satellite Centre of Trace Elements Institute to UNESCO, P. O. Box 32, H-1518 Budapest (Hungary) and L. Eoetvoes University, Department of Inorganic and Analytical Chemistry, P.O. Box 32, H-1518 Budapest (Hungary)]. E-mail:


    Rapid and low cost off-line thin layer chromatography-total reflection X-ray fluorescence spectrometry and overpressured thin layer chromatography-total reflection X-ray fluorescence spectrometry methods have been developed for separation of 25 ng of each As(III), As(V), monomethyl arsonic acid and dimethylarsinic acid applying a PEI cellulose stationary phase on plastic sheets and a mixture of acetone/acetic acid/water = 2:1:1 (v/v/v) as eluent system. The type of eluent systems, the amounts (25-1000 ng) of As species applied to PEI cellulose plates, injection volume, development distance, and flow rate (in case of overpressured thin layer chromatography) were taken into consideration for the development of the chromatographic separation. Moreover, a microdigestion method employing nitric acid for the As spots containing PEI cellulose scratched from the developed plates divided into segments was developed for the subsequent total reflection X-ray fluorescence spectrometry analysis. The method was applied for analysis of root extracts of cucumber plants grown in As(III) containing modified Hoagland nutrient solution. Both As(III) and As(V) were detected by applying the proposed thin layer chromatography/overpressured thin layer chromatography-total reflection X-ray fluorescence spectrometry methods.

  6. Shewanella oneidensis MR-1-Induced Fe(III) Reduction Facilitates Roxarsone Transformation (United States)

    Chen, Guowei; Ke, Zhengchen; Liang, Tengfang; Liu, Li; Wang, Gang


    Although microbial activity and associated iron (oxy)hydroxides are known in general to affect the environmental dynamics of 4-hydroxy-3-nitrobenzenearsonic acid (roxarsone), the mechanistic understanding of the underlying biophysico-chemical processes remains unclear due to limited experimental information. We studied how Shewanella oneidensis MR-1 –a widely distributed metal-reducing bacterium, in the presence of dissolved Fe(III), affects roxarsone transformations and biogeochemical cycling in a model aqueous system. The results showed that the MR-1 strain was able to anaerobically use roxarsone as a terminal electron acceptor and to convert it to a single product, 3-amino-4-hydroxybenzene arsonic acid (AHBAA). The presence of Fe(III) stimulated roxarsone transformation via MR-1-induced Fe(III) reduction, whereby the resulting Fe(II) acted as an efficient reductant for roxarsone transformation. In addition, the subsequent secondary Fe(III)/Fe(II) mineralization created conditions for adsorption of organoarsenic compounds to the yielded precipitates and thereby led to arsenic immobilization. The study provided direct evidence of Shewanella oneidensis MR-1-induced direct and Fe(II)-associated roxarsone transformation. Quantitative estimations revealed a candidate mechanism for the early-stage environmental dynamics of roxarsone in nature, which is essential for understanding the environmental dynamics of roxarsone and successful risk assessment. PMID:27100323

  7. Direct surface analysis of pesticides on soil, leaves, grass, and stainless steel by static secondary ion mass spectrometry

    Energy Technology Data Exchange (ETDEWEB)

    Ingram, J.C.; Groenewold, G.S.; Appelhans, A.D.; Delmore, J.E.; Olson, J.E.; Miller, D.L. [Idaho National Engineering Lab., Idaho Falls, ID (United States)


    Direct surface analyses by static secondary ion mass spectrometry (SIMS) were performed for the following pesticides adsorbed on dandelion leaves, grass, soil, and stainless steel samples: alachlor, atrazine, captan, carbofuran, chlorpyrifos, chlorosulfuron, chlorthal-dimethyl, cypermethrin, 2,4-D, diuron, glyphosate, malathion, methomyl, methyl arsonic acid, mocap, norflurazon, oxyfluorfen, paraquat, temik, and trifluralin. The purpose of this study was to evaluate static SIMS as a tool for pesticide analysis, principally for use in screening samples for pesticides. The advantage of direct surface analysis compared with conventional pesticide analysis methods is the elimination of sample pretreatment including extraction, which streamlines the analysis substantially; total analysis time for SIMS analysis was ca. 10 min/sample. Detection of 16 of the 20 pesticides on all four substrates was achieved. Of the remaining four pesticides, only one (trifluralin) was not detected on any of the samples. The minimum detectable quantity was determined for paraquat on soil in order to evaluate the efficacy of using SIMS as a screening tool. Paraquat was detected at 3 pg/mm{sup 2} (c.a. 0.005 monolayers). The results of these studies suggest that SIMS is capable of direct surface detection of a range of pesticides, with low volatility, polar pesticides being the most easily detected. 25 refs., 2 figs., 2 tabs.

  8. Effect and mechanism of diphosphonic acid on flotation characteristic of fersmite and intergrowth gangue

    Institute of Scientific and Technical Information of China (English)

    任暤; 纪绯绯; 张书香


    The effect of several collectors and their dosage on the flotation characteristics of the synthetical fersmite at different pH values, the collecting strength and selectivity of several representative collectors were investigated. The experimental results indicate that diphosphonic acid is a good collector for fersmite and recovery of fersmite ranges from 83.27% to 85.10% when the pulp pH value is at 2.5-5.0 and the dosage is 20 mg/L. The rank sequence of selectivity for several collectors is as follows: diphosphonic acid > benzyl arsonic acid >α-styrolphosphonic acid>alkyl hydroximic acid (C7-9) > cyclic alkyl hydroximic acid. At the same time, Infrared Absorption Spectrum (IAS) and X-ray Photoelectron Spectroscopy (XPS) were used to detect and analyze the action mechanism of diphosphonic acid on fersmite. IAS results show that the characteristic absorption peak relating to PO as well as P-O vibration occurs between wave number 1 178 cm-1, 1 142 cm-1, 1 087 cm-1 and 934 cm-1, and diphosphonic acid is adsorbed on the surface of fersmite. XPS results indicate that the binding energy of P 2p peak of fersmite treated by diphosphonic acid is increased by 3.85 eV. It is proved that the adsorption is mainly chemical adsorption.

  9. Unique Construction and Social Experiences in Residential Remediation Sites - 13423

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Paul; Scarborough, Rebecca [Sevenson Environmental Services, Inc. 2749 Lockport Road, Niagara Falls, NY 14305 (United States)


    Sevenson Environmental Services, Inc., (Sevenson) has performed several radiological remediation projects located in residential urban areas. Over the course of these projects, there has been a wide variety of experiences encountered from construction related issues to unique social situations. Some of the construction related issues included the remediation of interior basements where contaminated material was located under the footers of the structure or was used in the mortar between cinder block or field stone foundations. Other issues included site security, maintaining furnaces or other utilities, underpinning, backfilling and restoration. In addition to the radiological hazards associated with this work there were occupational safety and industrial hygiene issues that had to be addressed to ensure the safety and health of neighboring properties and residents. The unique social situations at these job sites have included arson, theft/stolen property, assault/battery, prostitution, execution of arrest warrants for residents, discovery of drugs and paraphernalia, blood borne pathogens, and unexploded ordnance. Some of these situations have become a sort of comical urban legend throughout the organization. One situation had historical significance, involving the demolition of a house to save a tree older than the Declaration of Independence. All of these projects typically involve the excavation of early 20. century items such as advertisement signs, various old bottles (milk, Listerine, perfume, whisky) and other miscellaneous common trash items. (authors)

  10. Rethinking Conceptual Definitions of the Criminal Career and Serial Criminality. (United States)

    Edelstein, Arnon


    Since Cesare Lombroso's days, criminology seeks to define, explain, and categorize the various types of criminals, their behaviors, and motives. This aim has theoretical as well as policy-related implications. One of the important areas in criminological thinking focuses chiefly on recidivist offenders who perform large numbers of crimes and/or commit the most dangerous crimes in society (rape, murder, arson, and armed robbery). These criminals have been defined as "habitual offenders," "professional criminals," "career criminals," and "serial offenders." The interest in these criminals is a rational one, given the perception that they present a severe threat to society. The main challenge in this area of research is a conceptual problem that has significant effects across the field. To this day, scholars have reused and misused titles to define and explain different concepts. The aim of this article is 3-fold. First, to review the concepts of criminal career, professional crime, habitual offenses, and seriality with a critical attitude on confusing terms. Second, to propose the redefinition of concepts mentioned previously, mainly on the criminal career. Third, to propose a theoretical model to enable a better understanding of, and serve as a basis for, further research in this important area of criminology.

  11. Chemical fingerprinting of unevaporated automotive gasoline samples. (United States)

    Sandercock, P M L; Du Pasquier, E


    The comparison of two or more samples of liquid gasoline (petrol) to establish a common origin is a difficult problem in the forensic investigation of arsons and suspicious fires. A total of 35 randomly collected samples of unevaporated gasoline, covering three different grades (regular unleaded, premium unleaded and lead replacement), were examined. The high-boiling fraction of the gasoline was targeted with a view to apply the techniques described herein to evaporated gasoline samples in the future.A novel micro solid phase extraction (SPE) technique using activated alumina was developed to isolate the polar compounds and the polycyclic aromatic hydrocarbons (PAHs) from a 200microl sample of gasoline. Samples were analysed using full-scan gas chromatography-mass spectrometry (GC-MS) and potential target compounds identified. Samples were then re-analysed directly, without prior treatment, using GC-MS in selected ion monitoring (SIM) mode for target compounds that exhibited variation between gasoline samples. Principal component analysis (PCA) was applied to the chromatographic data. The first two principal components (PCs) accounted for 91.5% of the variation in the data. Linear discriminant analysis (LDA) performed on the PCA results showed that the 35 samples tested could be classified into 32 different groups.

  12. Regression analysis of major environmental parameters support an enhanced bioremediation of conglomerate heavy metals using an integrated ecosystem

    Energy Technology Data Exchange (ETDEWEB)

    Ibeanusi, V.M.; Henneman, T.; Cash, D. [Spelman College, Atlanta, GA (United States)


    We have developed an integrated ecosystem that supports the on-site speciation, detoxification, and mobilization of conglomerate toxic heavy metals of As(III), CR(VI), Pb, and Se from contaminated soil and water. The observed ecosystem dynamics of laboratory simulated ponds generated a pH profile (3-8.5) and a redox condition (0.25 V) that supported the oxidation of H{sub 3}AsO{sub 3} to H{sub 2}AsO{sub 4}. The infrared analysis of spent media identified an arsonic acid. The Cr(VI), Pb{sup 2} and Se (as in selenite) were reduced to Cr(III), PbS, and Se{sub 0}. In addition, molecular studies have identified unique protein molecules (< 10 KD) that are associated in the bioremediation processes. In these studies, the presence of a resistant bacterium (MRS-1), and cyanobacteria were highly significant in the bioremediation and sequestering of the metal ions to the pond surface. These results may have implications in the treatment of mixed wastes often encountered in mining areas.

  13. Women convicted of promoting prostitution of a minor are different from women convicted of traditional sexual offenses: a brief research report. (United States)

    Cortoni, Franca; Sandler, Jeffrey C; Freeman, Naomi J


    Some jurisdictions have legally decreed that certain nonsexual offenses (e.g., promoting prostitution of a minor, arson, burglary) can be considered sexual offenses. Offenders convicted of these crimes can be subjected to sexual offender-specific social control policies such as registration, as well as be included in sexual offender research such as recidivism studies. No studies, however, have systematically examined differences and similarities between this new class of sexual offenders and more traditional sexual offenders. The current study used a sample of 94 women convicted of sexual offenses to investigate whether women convicted of promoting prostitution of a minor differed on demographic and criminogenic features from those convicted of more traditional sexual offenses. Results show that women convicted of promoting prostitution offenses have criminal histories more consistent with general criminality and exhibit more general antisocial features than women convicted of traditional sexual offenses. These results support the notion that the inclusion of legally defined sexual offenders with traditional ones obscures important differences in criminogenic features among these women.

  14. Antigovernment Groups. A Growing Threat to US Security

    Energy Technology Data Exchange (ETDEWEB)

    Swift, Alicia L. [Los Alamos National Laboratory


    Domestic terrorism is a growing threat in the United States, particularly from the 998 right-wing antigovernment (AG) groups in existence in 2015. In the years since the September 11, 2001 attacks in New York City, right-wing anti-government acts have oc- curred more often and killed more people in the United States than Muslim extremists. Such AG group members are often in uenced by racist, anti-Semitic, or anti-Islamic views, believe conspiracy theories about the government, and often refuse to pay taxes or participate in frivolous lawsuits in order to intentionally waste the government's time. There is, however, a violent element to these groups which participates in events ranging from the armed take-over of federal land in Oregon, to an armed stand-o with federal agents in Nevada, to the bombing of the Oklahoma City building which killed 168 people. Such acts may be conducted by a few individuals, as is the case of the Oklahoma City bombing, or an entire group. Such groups have a wide range of capabilities, with typical weapons including legal and illegal rearms, with a focus on purchasing fully automatic weapons; hand grenades, with some homemade; deadly tox- ins, like ricin (in multiple cases) and sodium cyanide (in one case); transportation, such as all-terrain vehicles (ATVs); arson, with the intent of destroying federal property; and explosives, often in large numbers and including pipe bombs, truck bombs, IEDs, and other homemade explosives. The growing acceptance of these violent methods by Republican congressmen and governors, however, only increases visibility of such groups and encourages their behavior. Coupled with the removal of the Department of Homeland Security's division responsible for monitoring such groups, the result could prove disastrous for the safety of United States citizens.

  15. Forest Fire Prevention Measures and Countermeasures of Field Fire Source Management in Yinjie Township%寅街镇森林火灾预防措施及野外火源管理对策

    Institute of Scientific and Technical Information of China (English)

    徐艳华; 毕劲荣


    在“被动扑救森林火灾”向“以预防为主”的森林火灾预防机制转变过程中,通过对寅街镇20年来森林火灾发生规律、起火原因、地域和时间分布进行分析,指出93%属人为野外用火引起,森林火灾造成的经济损失主要为非生产性用火中故意纵火、外区烧入、上坟等造成的,野外火源是导致寅街镇森林火灾的主要原因。提出落实责任,加强宣传,完善巡查力度,实施计划烧除,抓好森林火灾保险,严格火源管理等寅街镇森林火灾预防对策及加强野外火源管理的几点建议。%In the forest fire prevention mechanism change process of "passive fighting forest fires"to "prevention first", the analysis of forest fires occurrence , cause of the fire , the geographical and temporal distribution in Yinjie township in 20 years are made , results shown that field fire source are consider as main cause of forest fire which 93%are caused by human activity including deliberately arson in non-pro-ductive use of fire, burned from the outer zone, visit grave, etc.Suggestions to implement the responsi-bility, enhance publicity , to improve the inspection , to implement prescribed burning , to set up forest fires insurance , strengthen forest fire prevention measures are proposed .

  16. Antiabortion violence: causes and effects. (United States)

    Radford, B; Shaw, G


    Most antiabortion groups objected peacefully to the US Supreme Court decision granting women access to abortion by lobbying, demonstrating, and writing letters. Some groups reacted violently. In 1984, violent acts had climbed to 18 bombings and 6 acts of arson directed against abortion providers. They dropped in 1988-1990 and rose again in 1992-1993. The far rights' disapproval of the Reagan and Bush Administrations' inability to make abortion illegal accounts for these increased acts of violence. The violent antiabortion groups interpreted Reagan's failure to stop the continuing violence as approval of their methods. A former Catholic seminarian, Joseph Scheidler, called for a militant effort to end abortion, thereby unleashing the militant, violent antiabortion movement. He led local grassroots groups nationwide to accomplish the Year of Pain and Fear he called for in his book. Antiabortion zealots understand and use the potency of language. The dehumanize abortion providers. They suggest that followers pray for death or destruction. Their rhetoric of hatred motivates persons to perform violent acts. Little difference exists between clinic blockaders and clinic bombers/arsonists. Antiabortion zealots tend to be financial and social drifters escaping a past of drinking or drugs and from very dysfunctional families. Antiabortion violence has ushered in a new wave--murder of a provider. Abortion providers have adapted to lie with threats, jeering, and bricks thrown through windows. Even though abortion seekers fear personal injury, they fear even more harassment and invasion of privacy. Their tactics have reduced women's access to abortion care. Abortion providers operate in just 17% of US counties. When zealots spew hatred on families, however, providers often stop performing abortions. Nevertheless, communities are starting to stand up to the reactionaries. Neighbors, patients, businesses, and other physicians in Montana supported a clinic after a violent act

  17. The Countermeasures against the Public Security Problems Brought about by the Introduction of Halloween to China%万圣节传入与我国社会治安的应对

    Institute of Scientific and Technical Information of China (English)



    在我国一些大城市,未成年人过万圣节的气氛越来越浓,与万圣节相伴的“捣乱文化”也传入进来。鉴于西方很多国家在万圣节期间经常发生骚乱、纵火、抢劫、性侵儿童等严重破坏社会治安的行为,我国公安机关应当未雨绸缪,对万圣节期间可能出现的危害行为予以充分的估计,在万圣节前做好相应的安全宣传和处置预案,并采取管控有性侵儿童前科的人员,管控相关重点场所,动态监控网络虚拟社会等治安应对措施,主动防范可能出现的危害。%In some big cities of China, the atmosphere of celebrating Halloween is becoming increasingly strong among juveniles. At the same time,“the culture of making troubles”accompanying Halloween is also introduced to China. Considering the fact that in western countries, riots, arsons, robberies and sexual assaults of children take place very often and sometimes the public order is broken during Halloween, Chinese public security organs should prepare in advance to take full account of the possible harmful behaviors during Halloween, carry out the work of safety publicity and make plans before Halloween. Furthermore, several countermeasures, such as controlling persons who have a criminal record of assaulting child sexually, maintaining the public order of relevant areas and constantly monitoring the virtual society of cyberspace, should be taken to prevent possible harmfulness.

  18. [The "forty-nine" and "seventeen" problems]. (United States)

    Takaoka, Ken


    The single most common age of murderers in Japan is 49. Individuals aged between 45 and 54 are, however, likely to commit not offences but suicides comparing with other generations. One factor behind this phenomenon is the trend toward company downsizing, which is thought to affect the mental attitude of workers. This trend is destroying the Japanese lifetime employment system and undermining worker's loyalty to the company. On the other hand, in the broader category of felony crimes (assault, burglary, arson, murder), offenders aged 17 are the most common in Japan. This is thought to be partly due to the effect of so-called "school collapse" (school system failure) on the mental attitude of students. "School collapse" implies dysfunction of educational practice as a result of chattering, bullying and violence in the classroom. It is the reflection of students' dissatisfaction with the group-oriented school system. Therefore, students are unable to find any purposes in school and exhibit aggressive behaviours. In terms of mental health for both middle-age and teenage generations, it is necessary to devise new strategies whereby people can break away from the pressure of loyalty to the group. For both "normal" and "disabled" workers, rights of recuperations, adequate unemployment benefits policy, and support system for occupational change should be established. Simultaneously, for both "normal" and "disabled" students, reform of the school system under the concepts of diversity of education, rights of selection, and rights of refusal is urgently necessary. With respect to forensic psychiatry, without the provision of social supports, labeling of conduct disorder as well as other disorders should be avoided. In particular, instead of introducing security hospitals, drastic improvements of medical reformatories and medical prisons are necessary to provide adequate medical and social supports for offenders with psychiatric disorders.

  19. Analysis of household ignitable liquids and their post-combustion weathered residues using compound-specific gas chromatography-combustion-isotope ratio mass spectrometry. (United States)

    Schwartz, Zeland; An, Yan; Konstantynova, Kateryna I; Jackson, Glen P


    The continuing rise in home and vehicular arson cases involving the use of ignitable liquids continues to be an area of concern for criminal and civil investigators. In this study, the compound-specific δ(13)C values of various components of four flammable household chemicals were measured using a single quadrupole mass spectrometer and an isotope ratio mass spectrometer as simultaneous detectors for a gas chromatograph. Whereas compound-specific carbon isotope ratios were able to discriminate between different sources of neat (pre-combustion) ignitable liquids, analyses of the post-combustion residues were problematic. Weathering caused by combustion resulted in a significant increase in the (13)C content of specific peaks relative to the neat liquids (i.e. less negative delta values) such that the isotopic comparison of pre- and post-combustion residues resulted in fractionation ranging from 0 to +10‰. Because of the current lack of understanding of isotopic fractionation during combustion, and because of problems encountered with co-elution in the more complex samples, compound-specific IRMS does not appear to be suitable for fire debris analysis. The comparison of non-combusted or non-weathered ignitable liquids is much more reliable, especially for relatively simple mixtures, and is best suited for exclusionary purposes until such time as a comprehensive database of samples is developed. Without a measure of the population variance, one cannot presently predict the false positive identification rate for the comparison of two ignitable liquids; i.e. the probability that two random ignitable liquid samples have indistinguishable isotope ratios.

  20. Abortion providers seek to use RICO law as redress for clinic violence. (United States)


    Abortion rights groups pursue multiple avenues for redress against abortion protesters at clinics around the US. The Supreme Court opinion in January 1993 in Bray vs. Alexandria Women's Health Clinic states that the Ku Klux Klan Act may not be used to protect clinics. A federal appeals court opinion states that a provision of the act does provide some protection for clinics. Both the Senate and House of Representatives passed bills making damage to an abortion clinic or intimidation of patients and staff a federal crime. The passage of this legislation into law is expected in early 1994. The case of NOW (the National Organization for Women) vs. Scheidler, initiated in 1986, is not expected to be ruled on until the summer of 1994. Depending upon the ruling, NOW will file another suit in a lower court referring to RICO (Racketeer Influenced and Corrupt Organizations Act) violations and a pattern of criminal activity. NOW's lawyer Fay Clayton puts forth the argument that clinic violence is a "nationwide campaign of terror" designed to halt the practice of abortion and is illegal under RICO. Robert Blakely, one of the original authors of RICO, represents Operation Rescue and the ProLife Action League. RICO was used in the past against mobsters, stock manipulators, and pornographers. Lower courts are inconsistent in the interpretation of whether the economic motive is essential for enforcement of RICO. RICO refers to "affairs" of an "enterprise" engaging in two or more incidents of criminal activity such as extortion, arson, and kidnapping. The Supreme Court criticized Congress for vague wording in the law and for not fulfilling its responsibility to refine the language. Congress has, since 1970, tried to rewrite the law without success. The US Solicitor General, attorney Miguel Estrada, argued that the economic motive requirement limits the role Congress intended for RICO. The administration may use RICO to prosecute terrorists in the World Trade Center bombing and

  1. Westernized diets lower arsenic gastrointestinal bioaccessibility but increase microbial arsenic speciation changes in the colon. (United States)

    Alava, Pradeep; Du Laing, Gijs; Tack, Filip; De Ryck, Tine; Van De Wiele, Tom


    Arsenic (As) is an important contaminant present in food and water. Several studies have indicated that the occurrence of As based skin lesions is significantly different when root and gourd rich diets are consumed compared to meat rich diets. Additionally, urinary As speciation from orally exposed individuals appears to depend on the composition of the diet. These observations imply that diet composition can affect both the bioavailable As fraction as the As speciation in the body. In this study, we used the in vitro gastrointestinal method (IVG) to evaluate how an Asian type diet (fiber rich) and a Western type diet (fat and protein rich), differ in their capability to release inorganic As (iAs(V)) and dimethyl arsinate (DMA(V)) from a rice matrix following gastrointestinal digestion. Moreover, we used a validated dynamic gut simulator to investigate whether diet background affects As metabolism by gut microbiota in a colon environment. An Asian diet background resulted in a larger As bioaccessibility (81.2%) than a Western diet background (63.4%). On the other hand, incubation of As contaminated rice with human colon microbiota in the presence of a Western type diet resulted in a larger amount of hazardous As species - monomethyl arsonite and monomethylmonothio arsonate - to be formed after 48 h. The permeability of these As species (60.5% and 50.5% resp.) across a Caco-2 cell line was significantly higher compared to iAs(V) and DMA(V) (46.5% and 28% resp.). We conclude that dietary background is a crucial parameter to incorporate when predicting bioavailability with bioaccessibility measurements and when assessing health risks from As following oral exposure.

  2. Increased frequency of brain pathology in inmates of a high-security forensic institution: a qualitative CT and MRI scan study. (United States)

    Witzel, Joachim G; Bogerts, Bernhard; Schiltz, Kolja


    This study aimed to assess whether brain pathology might be more abundant in forensic inpatients in a high-security setting than in non-criminal individuals. By using a previously used reliable approach, we explored the frequency and extent of brain pathology in a large group of institutionalized offenders who had not previously been considered to be suffering from structural brain damage and compare it to healthy, non-offending subjects. MRI and CT brain scans from 148 male inpatients of a high-security mental health institution (offense type: 51 sex, 80 violent, 9 arson, and 8 nonviolent) that were obtained due to headache, vertigo, or psychological complaints during imprisonment were assessed and compared to 52 non-criminal healthy controls. Brain scans were assessed qualitatively with respect to evidence of structural brain damage. Each case received a semiquantitative rating of "normal" (=0), "questionably abnormal" (=1), or "definitely abnormal" (=2) for the lateral ventricles, frontal/parietal cortex, and medial temporal structures bilaterally as well as third ventricle. Forensic inpatients displayed signs of brain damage to a significantly higher degree than healthy controls (p pathology. The astonishingly high prevalence of brain pathology in institutionalized inmates of a high-security mental health institution who previously had not been considered to be suffering from an organic brain syndrome raises questions on whether such neuroradiological assessment might be considered as a routine procedure in newly admitted patients. Furthermore, it highlights that organic changes, detectable under clinical routine conditions, may play a role in the development of legally relevant behavioral disturbances which might be underestimated.

  3. Daphnia HR96 is a promiscuous xenobiotic and endobiotic nuclear receptor

    Energy Technology Data Exchange (ETDEWEB)

    Karimullina, Elina [Environmental Toxicology Program, Clemson University, Clemson, SC 29634 (United States); Institute of Plant and Animal Ecology, Russian Academy of Sciences, Ural Branch, Yekaterinburg 620144 (Russian Federation); Li Yangchun; Ginjupalli, Gautam K. [Environmental Toxicology Program, Clemson University, Clemson, SC 29634 (United States); Baldwin, William S., E-mail: [Environmental Toxicology Program, Clemson University, Clemson, SC 29634 (United States); Biological Sciences, Clemson University, Clemson, SC (United States)


    Daphnia pulex is the first crustacean to have its genome sequenced. The genome project provides new insight and data into how an aquatic crustacean may respond to environmental stressors, including toxicants. We cloned Daphnia pulex HR96 (DappuHR96), a nuclear receptor orthologous to the CAR/PXR/VDR group of nuclear receptors. In Drosophila melanogaster, (hormone receptor 96) HR96 responds to phenobarbital exposure and has been hypothesized as a toxicant receptor. Therefore, we set up a transactivation assay to test whether DappuHR96 is a promiscuous receptor activated by xenobiotics and endobiotics similar to the constitutive androstane receptor (CAR) and the pregnane X-receptor (PXR). Transactivation assays performed with a GAL4-HR96 chimera demonstrate that HR96 is a promiscuous toxicant receptor activated by a diverse set of chemicals such as pesticides, hormones, and fatty acids. Several environmental toxicants activate HR96 including estradiol, pyriproxyfen, chlorpyrifos, atrazine, and methane arsonate. We also observed repression of HR96 activity by chemicals such as triclosan, androstanol, and fluoxetine. Nearly 50% of the chemicals tested activated or inhibited HR96. Interestingly, unsaturated fatty acids were common activators or inhibitors of HR96 activity, indicating a link between diet and toxicant response. The omega-6 and omega-9 unsaturated fatty acids linoleic and oleic acid activated HR96, but the omega-3 unsaturated fatty acids alpha-linolenic acid and docosahexaenoic acid inhibited HR96, suggesting that these two distinct sets of lipids perform opposing roles in Daphnia physiology. This also provides a putative mechanism by which the ratio of dietary unsaturated fats may affect the ability of an organism to respond to a toxic insult. In summary, HR96 is a promiscuous nuclear receptor activated by numerous endo- and xenobiotics.

  4. Transformation of inorganic and organic arsenic by Alkaliphilus oremlandii sp. nov. strain OhILAs. (United States)

    Fisher, Edward; Dawson, Asia M; Polshyna, Ganna; Lisak, Joy; Crable, Bryan; Perera, Eranda; Ranganathan, Mrunalni; Thangavelu, Mirunalni; Basu, Partha; Stolz, John F


    Alkaliphilus oremlandii sp. nov. strain OhILAs is a mesophilic, spore-forming, motile, low mole%GC gram positive. It was enriched from Ohio River sediments on a basal medium with 20 mM lactate and 5 mM arsenate and isolated through passage on medium with increased arsenic concentration (10 and 20 mM), tindalization, and serial dilution. The pH optimal for growth was 8.4 and 16S rRNA gene sequence analysis indicated it is most closely related to species in the genus Alkaliphilus (A. crotonoxidans 95%, A. auruminator 95%, A. metalliredigens, 94%). A strict anaerobe, it can ferment lactate via the acrylate pathway as well as fructose and glycerol. A. oremlandii also has respiratory capability, as it is able to use arsenate and thiosulfate as terminal electron acceptors with acetate, pyruvate, formate, lactate, fumarate, glycerol, or fructose as the electron donor. A respiratory arsenate reductase, which is constitutively expressed, has been identified through biochemical and Western blot analyses and confirmed by cloning and sequencing of the gene encoding the structural subunit arrA. The entire arr operon as well as the ars operon have also been identified in the fully annotated genome. A. oremlandii also transforms the organoarsenical 3-nitro-4-hydroxy benzene arsonic acid (roxarsone). Growth experiments and genomic analysis suggest that it couples the reduction of the nitro group of the organoarsenical to the oxidation of either lactate or fructose in a dissimilatory manner, generating ATP via a sodium dependent ATP synthase.

  5. Pathological Fire Setting Behavior in Children and Adolescents

    Directory of Open Access Journals (Sweden)

    Fatmagul Helvaci Celik


    Full Text Available Pathological fire setting behavior is characterized by various types of fire setting behavior that lasts at least 6 months. This behavior can be observed both during childhood and adolescence and it develops as a result of the complex interaction between individual, social and environmental factors. Sample population based studies show that fire setting behavior occurs in children and adolescents by 5-10%. The studies that have been conducted have yielded to various theories and findings concerning the mechanism of occurrence of pathological fire setting behavior, the factors that affect this behavior and the demographic, individual, family and environmental characteristics of the children and adolescents who engage in such behavior. The objectives of effective treatment strategies are reducing fire setting behavior as well as making significant changes in the causes underlying the psychopathology. Outpatient care is the preferred method. In addition, there are some inpatient treatment programs designed especially for young people who set fires. The two most common approaches in intervention concerning fire setting behavior are firefighting (fire service based training interventions and mental health based psycho-social interventions. Even though numerous studies have been conducted in the world concerning pathological fire setting behavior from the 19th century onwards, no epidemiological data or study on pathological fire setting behavior exists in Turkey. This seems to be the case in our country despite the fact that fire setting behavior at various degrees and even arson occurs in children and adolescents and results in material damage as well as serious injury and even death especially in the context of children who are pushed into crime. Our objective is to discuss pathological fire setting behavior in line with the literature on the subject, to increase the awareness of the fire service institutions and to shed light on further studies to

  6. Satellite-based Assessment of Fire Impacts on Ecosystem Changes in West Africa (United States)

    Ichoku, Charles


    Fires bum many vegetated regions of the world to a variety of degrees and frequency depending on season. Extensive biomass burning occurs in most parts of sub-Saharan Africa, posing great threat to ecosystem stability among other real and potential adverse impacts. In Africa, such landscape-scale fires are used for various agricultural purposes, including land clearing and hunting, although there may be a limited number of cases of fires ignited by accident or due to arson. Satellite remote sensing provides the most practical means of mapping fires, because of their sudden and aggressive nature coupled with the tremendous heat they generate. Recent advancements in satellite technology has enabled, not only the identification of fire locations, but also the measurement of fire radiative energy (FRE) release rate or power (FRP), which has been found to have a direct linear relationship with the rate of biomass combustion. A recent study based on FRP measurements from the Moderate-resolution imaging Spectro-radiometer (MODIS) sensor aboard the Terra and Aqua satellites revealed that, among all the regions of the world where fires occur, African regions rank the highest in the intensity of biomass burning per unit area of land during the peak of the burning season. In this study, we will analyze the burning patterns in West Africa during the last several years and examine the extent of their impacts on the ecosystem dynamics, using a variety of satellite data. The study introduces a unique methodology that can be used to build up the knowledge base from which decision makers can obtain scientific information in fomulating policies for regulating biomass burning in the region.

  7. The Effects of Phosphonic Acids in Dye-Sensitized Solar Cells (United States)

    James, Keith Edward

    Novel methods for the construction of dye-sensitized solar cells (DSSCs) were developed. A thin dense underlayer of TiO2 was applied on fluorine-doped tin oxide (FTO) glass using as a precursor Tyzor AA-105. Subsequently a mesoporous film of P-25 TiO2 was applied by spreading a suspension uniformly over the surface of the underlayer and allowing the plate to slowly dry while resting on a level surface. After sintering at 500° C slides were treated with TCPP as a sensitizing dye and assembled into DSSCs. A novel method was used to seal the cells; strips of ParafilmRTM were used as spacers between the electrodes and to secure the electrodes together. The cells were filled with a redox electrolyte and sealed by dipping into molten paraffin. A series of phosphonic acids and one arsonic acid were employed as coadsorbates in DSSCs. The coadsorbates were found to compete for binding sites, resulting in lower levels of dye adsorption. The resulting loss of photocurrent was not linear with the reduction of dye loading, and in some cases photocurrent and efficiency were higher for cells with lower levels of dye loading. Electrodes were treated with coadsorbates by procedures including pre-adsorption, simultaneous (sim-adsorption), and post-adsorption, using a range of concentrations and treatment times and a variety of solvents. Most cells were tested using an iodide-triiodide based electrolyte (I3I-1) but some cells were tested using electrolytes based on a Co(II)/Co(III) redox couple (CoBpy electrolytes). Phosphonic acid post-adsorbates increased the Voc of cells using CoBpy electrolytes but caused a decrease in the Voc of cells using I3I-1 electrolyte. Phosphonic acids as sim-adsorbates resulted in a significant increase in efficiency and Jsc, and they show promise as a treatment for TCPP DSSCs.

  8. An uncommon case of random fire-setting behavior associated with Todd paralysis: A case report

    Directory of Open Access Journals (Sweden)

    Kanehisa Masayuki


    Full Text Available Abstract Background The association between fire-setting behavior and psychiatric or medical disorders remains poorly understood. Although a link between fire-setting behavior and various organic brain disorders has been established, associations between fire setting and focal brain lesions have not yet been reported. Here, we describe the case of a 24-year-old first time arsonist who suffered Todd’s paralysis prior to the onset of a bizarre and random fire-setting behavior. Case presentation A case of a 24-year-old man with a sudden onset of a bizarre and random fire-setting behavior is reported. The man, who had been arrested on felony arson charges, complained of difficulties concentrating and of recent memory disturbances with leg weakness. A video-EEG recording demonstrated a close relationship between the focal motor impairment and a clear-cut epileptic ictal discharge involving the bilateral motor cortical areas. The SPECT result was statistically analyzed by comparing with standard SPECT images obtained from our institute (easy Z-score imaging system; eZIS. eZIS revealed hypoperfusion in cingulate cortex, basal ganglia and hyperperfusion in frontal cortex,. A neuropsychological test battery revealed lower than normal scores for executive function, attention, and memory, consistent with frontal lobe dysfunction. Conclusion The fire-setting behavior and Todd’s paralysis, together with an unremarkable performance on tests measuring executive function fifteen months prior, suggested a causal relationship between this organic brain lesion and the fire-setting behavior. The case describes a rare and as yet unreported association between random, impulse-driven fire-setting behavior and damage to the brain and suggests a disconnection of frontal lobe structures as a possible pathogenic mechanism.

  9. Wildfires in Chile: A review (United States)

    Úbeda, Xavier; Sarricolea, Pablo


    This paper reviews the literature examining the wildfire phenomenon in Chile. Since ancient times, Chile's wildfires have shaped the country's landscape, but today, as in many other parts of the world, the fire regime - pattern, frequency and intensity - has grown at an alarming rate. In 2014, > 8000 fires were responsible for burning c. 130,000 ha, making it the worst year in Chile's recent history. The reasons for this increase appear to be the increment in the area planted with flammable species; the rejection of these landscape modifications on the part of local communities that target these plantations in arson attacks; and, the adoption of intensive forest management practices resulting in the accumulation of a high fuel load. These trends have left many native species in a precarious situation and forest plantation companies under considerable financial pressure. An additional problem is posed by fires at the wildland urban interface (WUI), threatening those inhabitants that live in Chile's most heavily populated cities. The prevalence of natural fires in Chile; the relationship between certain plant species and fire in terms of seed germination strategies and plant adaptation; the relationship between fire and invasive species; and, the need for fire prevention systems and territorial plans that include fire risk assessments are some of the key aspects discussed in this article. Several of the questions raised will require further research, including just how fire-dependent the ecosystems in Chile are, how the forest at the WUI can be better managed to prevent human and material damage, and how best to address the social controversy that pits the Mapuche population against the timber companies.

  10. A review of the main driving factors of forest fire ignition over Europe. (United States)

    Ganteaume, Anne; Camia, Andrea; Jappiot, Marielle; San-Miguel-Ayanz, Jesus; Long-Fournel, Marlène; Lampin, Corinne


    Knowledge of the causes of forest fires, and of the main driving factors of ignition, is an indispensable step towards effective fire prevention policies. This study analyses the factors driving forest fire ignition in the Mediterranean region including the most common human and environmental factors used for modelling in the European context. Fire ignition factors are compared to spatial and temporal variations of fire occurrence in the region, then are compared to results obtained in other areas of the world, with a special focus on North America (US and Canada) where a significant number of studies has been carried out on this topic. The causes of forest fires are varied and their distribution differs among countries, but may also differ spatially and temporally within the same country. In Europe, and especially in the Mediterranean basin, fires are mostly human-caused mainly due arson. The distance to transport networks and the distance to urban or recreation areas are among the most frequently used human factors in modelling exercises and the Wildland-Urban Interface is increasingly taken into account in the modelling of fire occurrence. Depending on the socio-economic context of the region concerned, factors such as the unemployment rate or variables linked to agricultural activity can explain the ignition of intentional and unintentional fires. Regarding environmental factors, those related to weather, fuel and topography are the most significant drivers of ignition of forest fires, especially in Mediterranean-type regions. For both human and lightning-caused fires, there is a geographical gradient of fire ignition, mainly due to variations in climate and fuel composition but also to population density for instance. The timing of fires depends on their causes. In populated areas, the timing of human-caused fires is closely linked to human activities and peaks in the afternoon whereas, in remote areas, the timing of lightning-caused fires is more linked to

  11. The Effect of Preparation Design on the Fracture Resistance of Zir-Conia Crown Copings (Computer Associated Design/Computer Associated Machine, CAD/CAM System

    Directory of Open Access Journals (Sweden)

    B. Atashkar


    Full Text Available Objective: One of the major problems of all ceramic restorations is their probable fracture against the occlusal force. The aim of the present in-vitro study is was to compare the effect of two marginal designs (chamfer & shoulder on the fracture resistance of zirconia copings, CERCON (CAD/CAM.MATERIALS AND METHODS: This in vitro study was done with single blind experimental technique. One stainless steel dye with 50’ chamfer finish line design (0.8 mm depth was prepared using milling machine. Ten epoxy resin dyes were made, The same dye was retrieved and 50' chamfer was converted into shoulder (1 mm.again ten epoxy resin dyes were made from shoulder dyes. Zirconia cores with 0.4 mm thickness and 35 µm cement Space fabricated on the20 epoxy resin dyes (10 samples chamfer and 10 samples shoulder in a dental laboratory. Then the zirconia cores were cemented on the epoxy resin dyes and underwent a fracture test with a universal testing machine (GOTECH AI-700LAC, Arson, USA and samples were investigated from the point of view of the origin of the failure.RESULT: The mean value of fracture resistance for shoulder margins were 788.90±99.56 N and for the chamfer margins were 991.75±112.00 N. The student’s T-test revealed a statistically significant difference between groups (P=0.001.CONCLUSION: The result of this study indicates that marginal design of the zirconia cores effects on their fracture resistance. A chamfer margin could improve the biomechanical performance of posterior single zirconia crown restorations. This may be because of strong unity and round internal angle in chamfer margin.

  12. Location, timing and extent of wildfire vary by cause of ignition (United States)

    Syphard, Alexandra D.; Keeley, Jon E.


    The increasing extent of wildfires has prompted investigation into alternative fire management approaches to complement the traditional strategies of fire suppression and fuels manipulation. Wildfire prevention through ignition reduction is an approach with potential for success, but ignitions result from a variety of causes. If some ignition sources result in higher levels of area burned, then ignition prevention programmes could be optimised to target these distributions in space and time. We investigated the most common ignition causes in two southern California sub-regions, where humans are responsible for more than 95% of all fires, and asked whether these causes exhibited distinct spatial or intra-annual temporal patterns, or resulted in different extents of fire in 10-29-year periods, depending on sub-region. Different ignition causes had distinct spatial patterns and those that burned the most area tended to occur in autumn months. Both the number of fires and area burned varied according to cause of ignition, but the cause of the most numerous fires was not always the cause of the greatest area burned. In both sub-regions, power line ignitions were one of the top two causes of area burned: the other major causes were arson in one sub-region and power equipment in the other. Equipment use also caused the largest number of fires in both sub-regions. These results have important implications for understanding why, where and how ignitions are caused, and in turn, how to develop strategies to prioritise and focus fire prevention efforts. Fire extent has increased tremendously in southern California, and because most fires are caused by humans, ignition reduction offers a potentially powerful management strategy, especially if optimised to reflect the distinct spatial and temporal distributions in different ignition causes.

  13. Tridimensional Personality Questionnaire data on alcoholic violent offenders: specific connections to severe impulsive cluster B personality disorders and violent criminality

    Directory of Open Access Journals (Sweden)

    Lindberg Nina


    Full Text Available Abstract Background The validity of traditional categorical personality disorder diagnoses is currently re-evaluated from a continuous perspective, and the evolving DSM-V classification may describe personality disorders dimensionally. The utility of dimensional personality assessment, however, is unclear in violent offenders with severe personality pathology. Methods The temperament structure of 114 alcoholic violent offenders with antisocial personality disorder (ASPD was compared to 84 offenders without ASPD, and 170 healthy controls. Inclusion occurred during a court-ordered mental examination preceded by homicide, assault, battery, rape or arson. Participants underwent assessment of temperament with the Tridimensional Personality Questionnaire (TPQ and were diagnosed with DSM-III-R criteria. Results The typical temperament profile in violent offender having ASPD comprised high novelty seeking, high harm avoidance, and low reward dependence. A 21% minority scored low in trait harm avoidance. Results, including the polarized harm avoidance dimension, are in accordance with Cloninger's hypothesis of dimensional description of ASPD. The low harm avoidance offenders committed less impulsive violence than high harm avoidance offenders. High harm avoidance was associated with comorbid antisocial personality disorder and borderline personality disorder. Conclusion Results indicate that the DSM based ASPD diagnosis in alcoholic violent offenders associates with impulsiveness and high novelty seeking but comprises two different types of ASPD associated with distinct second-order traits that possibly explain differences in type of violent criminality. Low harm avoidance offenders have many traits in common with high scorers on the Hare Psychopathy Checklist-Revised (PCL-R. Results link high harm avoidance with broad personality pathology and argue for the usefulness of self-report questionnaires in clinical praxis.

  14. Crisis planning to manage risks posed by animal rights extremists. (United States)

    Bailey, Matthew R; Rich, Barbara A; Bennett, B Taylor


    Among the multitude of crises that US research institutions may face are those caused by animal rights activists. While most activists opposed to animal research use peaceful and lawful means of expressing their opinions, some extremists resort to illegal methods. Arson, break-ins, and theft with significant property damage at US animal research facilities began in the 1980s. The most troubling trend to develop in the past decade is the targeting of individuals associated with animal research, whether directly or indirectly, and the use of violent scare tactics to intimidate researchers and their families. The National Association for Biomedical Research has a 30-year history of monitoring the animal rights movement and assisting member institutions with crisis situations. In this article we discuss attacks on researchers at their homes, cyber crimes, exploitation of new media formats, infiltration of research facilities, and the targeting of external research stakeholders and business partners. We describe the need for a well-conceived crisis management plan and strong leadership to mitigate crisis situations. Institutions with well-informed leaders and crisis management teams ready to take timely action are best equipped to protect staff, laboratory animals, and research programs. They act on early warnings, provide support for targeted staff, seek legal remedies, thoughtfully control access to research facilities, and identify and enlist new research supporters. We underscore the importance of up-to-date crisis planning so that institutions are not only aware of ongoing risks posed by animal rights extremists but also better prepared to take preemptive action and able to manage those risks successfully.

  15. Forensic psychiatric patients among immigrants in Denmark--diagnoses and criminality. (United States)

    Gabrielsen, Gorm; Kramp, Peter


    The purpose of this study is to analyse a sample of immigrant forensic psychiatric patients and to compare them with Danish patients. Of the 326 forensic patients in Copenhagen, 111 were immigrants or descendants of immigrants. The sample was broken down according to area of origin, age, gender and ethnic status. The data have been analysed by Poisson regression with the background population as an offset variable. Of the patients of non-Danish ethnicity, a significantly higher ratio was diagnosed with schizophrenia and a lower ratio was diagnosed with personality disorders compared with Danes. Iranians accounted for a higher ratio than did other minority groups, whereas patients from Western Europe/USA were not different from Danes. The higher ratio of forensic schizophrenic patients of non-Danish ethnicity cannot be explained by social factors or substance abuse. Migration increases the age-adjusted risk (ARR) of becoming schizophrenic (ARR=2.7). We found the ARR of becoming a male forensic schizophrenic patient among immigrants/descendants to be 2.8, i.e. the same as that caused by migration as such. Violence and schizophrenia are associated, and this explains the fact that the ratio of immigrants/descendants having committed violence exceeds that of Danes. Non-violent crimes are more equally distributed among ethnic groups and seem to be associated with common criminogenic factors. Arson is mainly committed by older schizophrenic patients of Danish ethnicity. The risk of an individual immigrant and Danish schizophrenic patient exhibiting criminal behaviour is the same. Schizophrenia is a criminogenic factor in violence, but not in non-violent crimes. The differences between the various ethnic groups could be related to selection caused by both immigration and emigration.

  16. 试论城市地下公共空间的反恐问题%On Anti-terrorist Attack in Urban Underground Public Space

    Institute of Scientific and Technical Information of China (English)



    Urban underground public space is the place with a variety of public underground commercial facilities , underground entertainment facilities, underground parking, subway and other transportation facilities, as well as underground plaza with the people gathered. The inherent threat to the urban underground public space may be from the terrorism including the complexity of on-ground space environment and lack of external security. The external factors include high staff-intensity within the space, space-specific functionality and their own vulnerability. The main form of the terrorist threat is the explosion, arson, assassination and hostage taking, biochemical or radioactive material attacks. The protection includes enhancing access control, environmental prevention, eliminating the structural " crime corners" of underground public space and establishing the security evacuation mechanism.%城市地下公共空间是指城市各种公共地下商业设施、地下娱乐设施、地下停车场和地铁等交通设施、地下广场等具有聚集性人流的地下公共空间场所.城市地下公共空间可能遭受恐怖威胁的内在因素包括地上空间环境复杂和外部安全保障缺失,外在因素包括内部人员密集性、空间的特定功能性和空间自身的脆弱性,面临的恐怖威胁形式主要有爆炸、纵火、暗杀与人质劫持、生化或放射性物质攻击等.反恐预防措施包括地下公共空间的入口控制,引入地下公共空间的情景预防,消除空间的结构性“犯罪死角”以及建立安全疏散机制等措施.

  17. Crystal structures and hydrogen bonding in the isotypic series of hydrated alkali metal (K, Rb and Cs complexes with 4-aminophenylarsonic acid

    Directory of Open Access Journals (Sweden)

    Graham Smith


    Full Text Available The structures of the alkali metal (K, Rb and Cs complex salts with 4-aminophenylarsonic acid (p-arsanilic acid manifest an isotypic series with the general formula [M2(C6H7AsNO32(H2O3], with M = K {poly[di-μ3-4-aminophenylarsonato-tri-μ2-aqua-dipotassium], [K2(C6H7AsNO32(H2O3], (I}, Rb {poly[di-μ3-4-aminophenylarsonato-tri-μ2-aqua-dirubidium], [Rb2(C6H7AsNO32(H2O3], (II}, and Cs {poly[di-μ3-4-aminophenylarsonato-tri-μ2-aqua-dirubidium], [Cs2(C6H7AsNO32(H2O3], (III}, in which the repeating structural units lie across crystallographic mirror planes containing two independent and different metal cations and a bridging water molecule, with the two hydrogen p-arsanilate ligands and the second water molecule lying outside the mirror plane. The bonding about the two metal cations in all complexes is similar, one five-coordinate, the other progressing from five-coordinate in (I to eight-coordinate in both (II and (III, with overall M—O bond-length ranges of 2.694 (5–3.009 (7 (K, 2.818 (4–3.246 (4 (Rb and 2.961 (9–3.400 (10 Å (Cs. The additional three bonds in (II and (III are the result of inter-metal bridging through the water ligands. Two-dimensional coordination polymeric structures with the layers lying parallel to (100 are generated through a number of bridging bonds involving the water molecules (including hydrogen-bonding interactions, as well as through the arsanilate O atoms. These layers are linked across [100] through amine N—H...O hydrogen bonds to arsonate and water O-atom acceptors, giving overall three-dimensional network structures.

  18. One-dimensional simulation of fire injection heights in contrasted meteorological scenarios with PRM and Meso-NH models

    Directory of Open Access Journals (Sweden)

    S. Strada


    Full Text Available Wild-fires release huge amounts of aerosol and hazardous trace gases in the atmosphere. The residence time and the dispersion of fire pollutants in the atmosphere can range from hours to days and from local to continental scales. These various scenarios highly depend on the injection height of smoke plumes. The altitude at which fire products are injected in the atmosphere is controlled by fire characteristics and meteorological conditions. Injection height however is still poorly accounted in chemistry transport models for which fires are sub-grid scale processes which need to be parametrised. Only recently, physically-based approaches for estimating the fire injection heights have been developed which consider both the convective updrafts induced by the release of fire sensible heat and the impact of background meteorological environment on the fire convection dynamics. In this work, two different models are used to simulate fire injection heights in contrasted meteorological scenarios: a Mediterranean arson fire and two Amazonian deforestation fires. A Eddy-Diffusivity/Mass-Flux approach, formerly developed to reproduce convective boundary layer in the non-hydrostatic meteorological model Meso-NH, is compared to the 1-D Plume Rise Model. For both models, radiosonde data and re-analyses from the European Center for Medium-Range Weather Forecasts (ECMWF have been used as initial conditions to explore the sensitivity of the models responses to different meteorological forcings. The two models predict injection heights for the Mediterranean fire between 1.7 and 3.3 km with the Meso-NH/EDMF model systematically higher than the 1-D PRM model. Both models show a limited sensitivity to the meteorological forcings with a 20–30% difference in the injection height between radiosondes and ECMWF data for this case. Injection heights calculated for the two Amazonian fires ranges from 5 to 6.5 km for the 1-D PRM model and from 2 to 4 km for the Meso

  19. Population and individual elephant response to a catastrophic fire in Pilanesberg National Park.

    Directory of Open Access Journals (Sweden)

    Leigh-Ann Woolley

    seen in predator-free large ungulate populations, i.e. mainly involving juveniles. Fire therefore functions in a similar manner to other environmental catastrophes and may be a natural mechanism contributing to population limitation. Welfare concerns of arson fires, burning during "hot-fire" conditions and the conservation implications of fire suppression (i.e. removal of a potential contributing factor to natural population regulation should be integrated into fire management strategies for conservation areas.

  20. One-dimensional simulation of fire injection heights in contrasted meteorological scenarios with PRM and Meso-NH models (United States)

    Strada, S.; Freitas, S. R.; Mari, C.; Longo, K. M.; Paugam, R.


    Wild-fires release huge amounts of aerosol and hazardous trace gases in the atmosphere. The residence time and the dispersion of fire pollutants in the atmosphere can range from hours to days and from local to continental scales. These various scenarios highly depend on the injection height of smoke plumes. The altitude at which fire products are injected in the atmosphere is controlled by fire characteristics and meteorological conditions. Injection height however is still poorly accounted in chemistry transport models for which fires are sub-grid scale processes which need to be parametrised. Only recently, physically-based approaches for estimating the fire injection heights have been developed which consider both the convective updrafts induced by the release of fire sensible heat and the impact of background meteorological environment on the fire convection dynamics. In this work, two different models are used to simulate fire injection heights in contrasted meteorological scenarios: a Mediterranean arson fire and two Amazonian deforestation fires. A Eddy-Diffusivity/Mass-Flux approach, formerly developed to reproduce convective boundary layer in the non-hydrostatic meteorological model Meso-NH, is compared to the 1-D Plume Rise Model. For both models, radiosonde data and re-analyses from the European Center for Medium-Range Weather Forecasts (ECMWF) have been used as initial conditions to explore the sensitivity of the models responses to different meteorological forcings. The two models predict injection heights for the Mediterranean fire between 1.7 and 3.3 km with the Meso-NH/EDMF model systematically higher than the 1-D PRM model. Both models show a limited sensitivity to the meteorological forcings with a 20-30% difference in the injection height between radiosondes and ECMWF data for this case. Injection heights calculated for the two Amazonian fires ranges from 5 to 6.5 km for the 1-D PRM model and from 2 to 4 km for the Meso-NH/EDMF model. The

  1. Adsorption of Roxarsone onto Drinking Water Treatment Residuals: Preliminary Studies (United States)

    Salazar, J.; Sarkar, D.; Datta, R.; Sharma, S.


    Roxarsone (3-nitro-4-hydroxyphenyl-arsonic acid) is an organo-arsenical compound, commonly used as a feed additive in the broiler poultry industry to control coccidial intestinal parasites. Roxarsone is not toxic to the birds not only because of the low dose, and also because it most likely does not convert to toxic inorganic arsenic (As) in their systems. However, upon excretion, roxarsone may undergo transformation to inorganic As, posing a serious risk of contaminating the agricultural land and water bodies via surface runoff or leaching. The use of poultry litter as fertilizer results in As accumulation rates of up to 50 metric tons per year in agricultural lands. The immediate challenge, as identified by the various regulatory bodies in recent years is to develop an efficient, yet cost-effective and environmentally sound approach to cleaning up such As- contaminated soils. Recent studies conducted by our group have suggested that the drinking water treatment residuals (WTRs) can effectively retain As, thereby decreasing its mobility in the environment. The WTRs are byproducts of drinking water treatment processes and are typically composed of amorphous Fe/Al oxides, activated C and cationic polymers. They can be obtained free-of-cost from water treatment plants. It is well demonstrated that the environmental mobility of As is controlled by adsorption/desorption reactions onto mineral surfaces. Hence, knowledge of adsorption and desorption of As onto the WTRs is of environmental relevance. The reported study examined the adsorption and desorption characteristics of As using two types of WTRs, namely the Fe-WTRs (byproduct of Fe salt treatment), and the Al-WTRs (byproduct of Al salt treatment). All adsorption experiments were carried out in batch and As retention on the WTRs was investigated as a function of solid/solution ratio (1:5, 1:10, 1:25 and 1:50), equilibration time (10 min - 48 hr), pH (2 - 10) and initial As load (100, 500, 1000 and 2000 mg As/L). The

  2. Excavation damaged zone

    Energy Technology Data Exchange (ETDEWEB)

    Poulain, S.; Sergeant, C.; Vesvres, M.H.; Simonoff, M.; Lavielle, B.; Thomas, B.; Gilabert, E. [Bordeaux-1 Univ., I and 2/CNRS and GdR FORPRO 0788, Nuclear Analytical and Bioenvironmental Chemistry 33 - Gradignan (France); Poulain, S.; Altmann, S.; Lenoir, N.; Barnichon, J.D.; Wileveau, Y.; Lebon, P. [ANDRA - Agence Nationale pour la Gestion des Dechets Radioactifs, 92 - Chatenay Malabry (France); Le Marrec, C. [Bordeaux-1 Univ., ISTAB, INRA, UMR Oenologie - ISVV, 33 - Talence (France); Vinsot, A.; Dewonck, S.; Wileveau, Y.; Armand, G.; Cruchaudet, P.; Rebours, H.; Morel, J. [Agence Nationale pour la Gestion des Dechets Radioactifs, Lab. de Souterrain de Meuse/Haute-Marne, 55 - Bure (France); Lanyon, G.W. [Fracture Systems Ltd, Tregurrian, Ayr, St Ives, Cornwall (United Kingdom); Marschall, P.; Vietor, T. [NAGRA - National Cooperative for the Disposal of Radioactive Waste, Wettingen (Switzerland); Bourdeau, C.; Dedecker, F.; Billaux, D. [ITASCA Consultants, S.A.S., 69 - Ecully (France); Lenoir, N.; Desrues, J.; Viggiani, G.; Besuelle, P. [Laboratoire 3S-R - Sols Solides Structures-Risques, 38 - Grenoble (France); Bornert, M. [Ecole Polytechnique, LMS - Lab. de Mecanique des Solides, 91 - Palaiseau (France); Arson, C.; Gatmiri, B. [CERMES, Ecole Nationale des Ponts et Chaussees, 77 - Marne-la-Vallee (France); Gatmiri, B. [University of Tehran (Iran, Islamic Republic of); Bernier, F. [ESV EURIDICE GIE - European Underground Research Infrastructure for Disposal of Nuclear Waste in Clay Environment (Belgium); Nussbaum, C.; Mori, O. [Geotechnical Institute Ltd., Fabrique de Chaux, St-Ursanne (Switzerland); Bossart, P. [Swisstopo - Federal Office of Topography, Wabern (Switzerland); Schuster, K.; Alheid, H.J. [BGR - Bundesanstalt fur Geowissenschaften und Rohstoffe, Hannover (Germany); Lavanchy, J.M.; Croise, J.; Schwarz, R. [Colenco Power Engineering AG, Groundwater Protection and Waste Disposal, Baden (Switzerland)] [and others


    This session gathers 13 articles dealing with: autochthonous and colonizing microorganisms in argillaceous underground environments (S. Poulain, C. Sergeant, C. Le Marrec, M.H. Vesvres, A. Vinsot, S. Dewonck, M. Simonoff, S. Altmann); the discrete fracture network modelling of the Hg-a experiment at the Mont Terri rock Laboratory (G.W. Lanyon, P. Marschall, T. Vietor); the discrete modelling of drift behaviour in the Meuse/Haute-Marne URL, France (C. Bourdeau, F. Dedecker, D. Billaux); the fracturing in Callovo-Oxfordian argillite under triaxial compression studied by X-ray microtomography (N. Lenoir, J. Desrues, G. Viggiani, P. Besuelle, M. Bornert, J.D. Barnichon); a general review of the damage models for the EDZ creation (C. Arson, B. Gatmiri); similarities in the Hydro-Mechanical response of Callovo-Oxfordian clay and Boom clay during gallery excavation (Y. Wileveau, F. Bernier); the different geometries of the EDZ fracture networks in the Mont Terri and Meuse/Haute-Marne rock laboratories: Structural approach (C. Nussbaum, Y. Wileveau, P. Bossart, A. Moeri, G. Armand); the characterisation of the Excavation-Damaged Zone in the Meuse/Haute-Marne Underground Research Laboratory (G. Armand, P. Lebon, M. Cruchaudet, H. Rebours, J. Morel, Y. Wileveau); the EDZ characterisation with ultrasonic interval velocity measurements in the Meuse/Haute-Marne URL, performed between depth of 85 m and 504 m (K. Schuster, H.J. Alheid); the clay formation at the Meuse Haute Marne URL: evaluation of the impact of resin filled slots on flow paths characteristics within the EDZ (J.M. Lavanchy, J. Croise, R. Schwarz, G. Armand, M. Cruchaudet); the characterisation and evolution of EDZ by extraction and analyse of noble gases in pore waters in the Meuse/Haute Marne URL site (B. Lavielle, B. Thomas, E. Gilabert); in-situ gas test for the characterisation of Excavation Disturbed Zone at the Meuse/Haute Marne URL (H. Shao, K. Schuster, J. Soennke, V. Braeuer); and the flow and reactive

  3. La teoria della letteratura di Nicolas Calas. Surrealismo, marxismo e psicanalisi in Foyers d’incendie

    Directory of Open Access Journals (Sweden)

    A. D'Urso


    Full Text Available ENThis contribution – probably the first specifically concerning Nicolas Calas to be published in Italian – intends to examine some particular topics of Foyers d’incendie [Hearths of Arson] (1938, a work that hardly can be found, by now. So this study will try to partially fill the absence at an international level of a detailed analysis of this book which is usually considered to be ‘difficult’ and therefore often hastily put under the label of ‘Freudo-Marxism’. Not only does this label appear confusing when we look more care-fully at the historical context of the Thirties, but it also does not allow to understand in what both Marxism and Freudism are criticized indeed, this aspect defining more clearly the surrealist character – eluded or taken for granted by critics – of Foyers d’incendie. In the first half of this paper, we will underline the role of Surrealism in Calas’ critical evolution in relation to orthodox Communism, whose language he still used before becoming indubitably a Surrealist. Then we will show the enthusiastic reception of Foyers d’incendie among the Surrealists and also the reasons of their appreciation. In the second half, we will go deep inside some pages of this book which concern more spe-cifically the theory of literature and the critique of ideology we can draw from Foyers d’incendie. This is why – for the first time – we will summarize Calas’ understanding of the literary and philosophical history, and show the role that Dialectical Materialism (chiefly that of Engels’ Origin of the Family, Private Property and the State and psychoanalysis (as it is considered by Surrealism play in his analysis.>>Questo contributo – apparentemente il primo studio specificamente dedicato a Nicolas Calas ad essere pubblicato in italiano – intende affrontare alcuni particolari contenuti dell’ormai quasi introvabile Foyers d’incendie (1938, tentando così di colmare, almeno parzialmente, l

  4. Technical Review of Law Enforcement Standards and Guides Relative to Incident Management

    Energy Technology Data Exchange (ETDEWEB)

    Stenner, Robert D.; Salter, R.; Stanton, J. R.; Fisher, D.


    enforcement standards and guides identified the following four guides as having content that supports incident management: • TE-02-02 Guide to Radio Communications Interoperability Strategies and Products • OSHA 335-10N Preparing and Protecting Security Personnel in Emergencies • NIJ 181584 Fire and Arson Scene Evidence: A Guide for Public Safety Personnel • NIJ 181869 A Guide for Explosion and Bombing Scene Investigation In conversations with various state and local law enforcement officials, it was determined that the following National Fire Protection Association (NPFA) standards are generally recognized and tend to be universally used by law enforcement organizations across the country: • NFPA 1600 Standard on Disaster/Emergency Management and Business Continuity Programs • NFPA 1561 Standard on Fire Department Incident Management Systems • NFPA 472 Standard for Competence of Responders to Hazardous Materials/Weapons of Mass Destruction Incidents (2008 Edition) • NFPA 473 Standard for Competencies for EMS Personnel Responding to Hazardous Materials/Weapons of Mass Destruction Incidents (2008 Edition)

  5. Loi constitutive chimioplastique pour le beton expose aux hautes temperatures (United States)

    Hammoud, Rabah

    Concrete is the most widely used construction material in the world. Even though it has been used for several centuries, its behavior to high temperature remains to be understood. In the light of recent extreme events, including accidents, and arson, special attention has been focused on the performance of concrete in the fire safety assessment of buildings and tunnels. Fire represents one of the most severe conditions encountered during the life-time of a structure. Concrete exposed to high temperature can significantly jeopardize the structural integrity and load bearing capacity of the structure. Spalling of concrete remains one of the main issues to be addressed in the case of fire in buildings and tunnels. Successful modeling of this phenomenon depends not only on the accurate prediction of the temperature distribution through structural concrete but also on its mechanical response to the heating and boundaries restrains conditions and the migration of moisture and associated pore pressures. Therefore, it is necessary to develop a reliable formulation of concrete with all required information to understand its behavior during and after exposure to elevated temperature. It is also necessary to properly assess the effects of thermal degradation in order to develop predictive tools and validate design codes. Many structural problems can be adequately worthy by an elastoplastic model. The ultimate goal of this study is the development of a new constitutive model under a chemoplastic framework. To do this, an experimental program is carried out. The purpose of this program is twofold. First, it is essential to calibrate the proposed constitutive law that will be developed, and, second, for defining an inverse a problem. Usually, uniaxial and triaxial tests, conducted with confining pressure varied between 1.3 and 24 MPa and a temperature up to 700°C, allow us to identify the constitutive law parameters. This law reproduces the reduced field strength due to

  6. Individuare gli incendiari. Fermare i piromani. Una professione / Identify the arsonists. Detain the pyromaniacs. A profession / Identifier les incendiaires. Arrêter les pyromanes. Un métier

    Directory of Open Access Journals (Sweden)

    Giuseppe Vadalà


    Full Text Available From the end of the Second World War onwards, at an international level we witness an increasing development of the so called environmental emergency. The environment has become that immaterial resource that must assure all citizens well-being and renewable basic life resources for the coming generation, but globalization has produced a remarkable growth of negative results resulting in new types of menace.Forest fires directly represent one of these threats causing the destruction of both forest patrimony and natural ecosystems worldwide, contributing to an increase in the carbon dioxide level in the atmosphere. The Act n. 353/2000 concerning forest fires reorganized the whole sector. The aim of the law is to control and to fight the risk of forest fires thanks to the implementation of a synergic system.The criminal system of sanctions represents another type of enforcing action in order to protect woods from fires, but it can not be the only solution to this problem assuming that we have to face a very complex and multifaceted event which causes should be to identify any widespread illegal phenomena or any extremely superficial behaviour as well as in criminal ones, which take on specific characteristics when occurring in a rural context. The identification of a solution for this intricate problem could be research, both at a preventive and at a control level, into activities able to operate on the many different causes that are at the origin of that behaviour which is the cause of forest fires and arson.Depuis la fin de la seconde guerre mondiale, la prétendue émergence des questions environnementales au niveau international s'est développée de façon exponentielle. L'environnement est ainsi devenu ce bien immatériel qui doit assurer aux citoyens la salubrité et les ressources vitales renouvelables pour les générations futures. Toutefois, la mondialisation a provoqué une forte augmentation des effets dangereux pour l'environnement et

  7. Development of a software for predicting the effects of nuclear and radiological terrorism events in city areas%城市核与辐射恐怖事件的辐射影响预测软件

    Institute of Scientific and Technical Information of China (English)

    罗丽娟; 陈波; 卓维海; 陆书玉


    Objective To develop a new software system that cau directly display the predicted results on an electronic map,in order to get a directly perceived understanding of the affected areas of nuclear and radiological terrorism events in city areas.Methods Three scenarios of events including spreading radioactive materials, dirty bomb attack,and explosion or arson attacks on the radiation facilities were assumed.Gaussian diffusion model was employed to predict the spread and deposition of radioactive pollutants,and both the internal and external doses were estimated for the representative person by using the corresponding dose conversion factors.Through integration of the computing system and Mapinfo geographic information system(GIS),the predicted results were visually displayed on the electronic maps of a city.Results The new software system could visually display the predicted results on the electronic map of a city, and the predicted results were consistent with those calculated by the similar software Hotspot(R)The deviation between this system and Hotspot was less than 0.2 km for predicted isoplethic curves of dose rate downwind.Conclusions The newly developed software system is of the practical value in predicting the effects of nuclear and radiological terrorism events in city areas.%目的 为更加直观了解核与辐射恐怖事件在城市地区的辐射影响范围,开发可将预测结果直接显示在城市电子地图上的系统软件.方法 针对放射性物质散布、脏弹袭击、辐射设施爆炸或纵火袭击3种场景,采用高斯扩散模型,预测污染物在大气中的扩散与沉降.结合相应的剂量转换因子,估算"代表人"的内、外照射剂量.集成计算系统与Mapinfo(R)地理信息系统,将相应的预测结果直观显示于城市电子地图.结果 该软件可实现预测结果在城市电子地图上的直接显示.其预测结果与国外类似软件Hotspot(R)的计算结果比较,对于主要污染区域的

  8. Forest Intervention Areas (ZIF): a new approach for forest management in Portugal (United States)

    Valente, S.; Coelho, C.; Soares, J.


    Portugal is the EU eighth country with more forest and other wooded area cover by surface area. However, it is also at the top of the EU countries most affected by forest fires. Several factors have been launched as possible causes, namely arson and negligence, which has been combined with harsh climate, steep slopes and a weakened rural context, characterized by depopulation and ageing, forest mismanagement, farmland abandonment and absence of an effective spatial planning. Forest fires of 2003 and 2005, which were particularly severe and intense, highlighted the need to restructure the legal and institutional setting of forest management in Portugal. These events proved to be very harmful, not only for the socio-economic context, but also in terms of desertification, soil erosion, loss of water supply and losses on soil organic matter. The EU funded DESIRE project (1) aimed to established promising sustainable land management (SLM) conservation strategies in several areas throughout the world affected by desertification, promoting joint work between scientists and local stakeholders. Forest fires are one of the major causes of desertification in Portugal and Mação and Góis municipalities were selected as DESIRE study sites. The decision support methodology developed under DESIRE was based on the notion that stakeholder participation in decision-making will develop more legitimate, effective and successful decisions. The reduction of burned area was the goal defined in the Portuguese stakeholder workshops and the Forest Intervention Area (ZIF) was selected as the needed approach towards SLM. The aim of this communication is to present the outline and context of ZIF approach in Portugal and to explore the social perception over the success or failure of this approach at Mação municipality. ZIF is a territorial unit where the main land use is forestry. This approach assembles and organizes small forest holders and defines a joint intervention for forest

  9. In This Issue (United States)


    extremely useful to anyone who wants to adopt this approach. Maier (page 643) describes a pilot program in polymer science designed to interest minority students in polymer science and chemistry. This is a modular program that could be incorporated into a variety of curricula. A different approach to curriculum and outreach is the combined biology/chemistry van program described by Craney, Mazzeo, and Lord (page 646). And yet more outreach for younger children is described by Nolan and Gish (page 651). Information technology can support and aid curriculum reform. The abstract from JCE: Software is for a CD-ROM that summarizes the work of an NSF-supported materials science curriculum development project carried out by Lisensky and Ellis (page 667). The Computer Series includes a proposed addition to the typical physical chemistry curriculum by Williams, Minarik, and Nibler (page 608); it is possible because microcomputers can now do ab initio molecular orbital calculations with reasonable speed. Demonstrations have long been a part of the curriculum. They are always popular and usually instructive. Beall (page 641) reports on a conference that considered the pros and cons of demonstrations as a teaching tool. Tested Demonstrations includes a means for estimating equilibrium constants based on the odor of a solution by Anderson, Buckley, and Niewahner (page 639) as well as a way of making ion exchange visible devised by Driscoll and Villaescuesa (page 640). A very important and time consuming aspect of curriculum development is incorporation of new laboratory experiences for students. Mabrouk (page A 149) describes a laboratory that brings biochemistry to the fore. Sundback (page 669) shows how high school students can test for lead in the environment, and Rees (page 670) shows how homeowners can easily test for lead in paint. Elderd, Kildahy, and Berka (page 675) provide a way to use modern GC equipment to show students how to determine whether a fire may have been arson. In

  10. Studies on the speciation analysis of As in poultry excreta after being fed with roxarsone and its photodegradation%鸡饲喂洛克沙胂后排泄物中 As 的形态分析及光降解研究

    Institute of Scientific and Technical Information of China (English)

    陈超; 严楚; 卓家珍; 曾婧; 陈杖榴; 孙永学


    degradation of roxarsone in poultry ex-creta was evaluated .[Result and conclusion]The excreted amount of roxarsone reached a steady-state concentration at 108 h after administration ( the range of roxarsone concentration was 31.62 -35.87 mg/kg; the range of total arsenic concentration was 16.75-21.48 mg/kg) .Roxarsone was undetectable in poultry excreta at 120 h after withdrawal, and the total arsenic was down to 3.89 mg/kg.The quantity of As(Ⅲ) and As (Ⅴ) slightly fluctuated and the peaks were 0.38 and 1.81 mg/kg correspondingly . There was a significant effect of light on the degradation of roxarsone .The results indicated that most of roxarsone was not absorbable and can quickly be eliminated with no change .The degradation rate of rox-arsone can increase the effect of photolysis .

  11. Performance evaluation of six homocysteine cycle enzymatic detection systems%六种同型半胱氨酸循环酶法检测系统的分析性能评价

    Institute of Scientific and Technical Information of China (English)

    安崇文; 李海霞


    measure homocysteine has good precision,linear range,and anti-interference ability.But it is noticeable that the results of cycle enzymatic was higher than those of CMIA.Meanwhile,the six systems do not apply to measuring urine samples.%目的 评估6种同型半胱氨酸(Hcy)循环酶法检测系统的分析性能.方法 方法学评价研究.应用美国临床和实验室标准化协会(CLSI) EP5-A2、EP15-A2、EP7-A2、EP6-A 、EP9-A2方法验证6种甲基转移酶循环法检测系统的精密度、正确度、抗干扰性、分析测量范围(AMR)、以及其与雅培(Abbott)化学发光微粒子免疫检测系统(CMIA)的相关性和偏差.采用美国国家标准技术研究所(NIST)有证参考物质SRM 1955、美国病理学家协会(CAP)发放的室间质评物(CR-B和CR-A)以及卫生部临床检验中心发放的室间质评物验证不同系统检测Hcy正确度.回归分析采用PassingBablok,回归线性检测采用Cusum方法,相关分析采用Pearson,偏差分析应用Bland-Altman.结果 Hcy浓度(10~ 22 μmol/L)时除A1系统低水平外,其他批内均<5%,批间均<6.7%.正确度验证显示A1 ~ D2、CMIA系统测定NIST SRM 1955在低、中、高水平的最大绝对偏倚分别为-3.36、1.43、2.24 μmol/L.测定CAP和卫生部临检中心室间质评物显示除A1系统外,其他系统偏倚均<总允许误差(TEa)2.50 μmol/L或靶值±20%.干扰分析显示Hb和TBil对测定干扰较明显.A1~D2系统AMR上限分别为47.30、69.76、72.10、73.96、46.23、48.98 μtmol/L.相关分析显示6种系统与CMIA系统检测结果间相关性较好,r均>0.975(P <0.01,n>40).6种系统与CMIA系统的平均绝对偏差最大为2.9 μmol/L.结论 应用自动生化仪的循环酶法检测Hcy具有良好的精密度、线性范围和抗干扰能力,但部分检测系统性能需要进一步改进,且与CMIA系统间存在一定偏差,同时循环酶法检测系统不适用于尿液样本.