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71.
Determination of Herbicides Paraquat,Glyphosate, and Aminomethylphosphonic Acid in Marijuana Samples by Capillary Electrophoresis 下载免费PDF全文
Rafael Lanaro M.Sc. José L. Costa Ph.D. Silvia O. S. Cazenave Ph.D. Luiz A. Zanolli-Filho M.Sc. Marina F. M. Tavares Ph.D. Alice A. M. Chasin Ph.D. 《Journal of forensic sciences》2015,60(Z1):S241-S247
In this work, two methods were developed to determine herbicides paraquat, glyphosate, and aminomethylphosphonic acid (AMPA) in marijuana samples by capillary electrophoresis. For paraquat analysis, sample was extracted with aqueous acetic acid solution and analyzed by capillary zone electrophoresis with direct UV detection. The running electrolyte was 50 mmol/L phosphate buffer (pH 2.50). For glyphosate and AMPA, indirect UV/VIS detection was used, as these substances do not present chromophoric groups. Samples were extracted with 5 mmol/L hydrochloric acid. The running electrolyte was 10 mmol/L gallic acid, 6 mmol/L TRIS, and 0.1 mmol/L CTAB (pH = 4.7). The methods presented good linearity, precision, accuracy, and recovery. Paraquat was detected in 12 samples (n = 130), ranging from 0.01 to 25.1 mg/g. Three samples were positive for glyphosate (0.15–0.75 mg/g), and one sample presented AMPA as well. Experimental studies are suggested to evaluate the risks of these concentrations to marijuana user. 相似文献
72.
National frontiers with ecosystems experiencing rapid changes pose difficult challenges for scientific contributions to democratic processes for environmental governance. We describe an innovative outreach model, the ‘Knowledge Exchange Train’, which combines educational outreach with capacity-building mechanisms to broaden public participation in planning for sustainable development. This involved an international team of scientists and practitioners from conservation and development organisations who travelled across a tri-national frontier area of the south-western Amazon to share recent findings with local leaders and stakeholder constituencies of several municipalities. The Knowledge Exchange Train quickly increased public awareness in many places and provided a means of broadening participation in planning and governance. This model supports planning for sustainable development and can be adapted to other geographic contexts and topics. 相似文献
73.
Criticisms of the elections of the Salvadoran transition of 1979–1992 assume an external staging capacity notoriously absent
from processes of regime change. An analysis of possible causal determinants of voting turnout in the elections of 1982–1991
suggests a much more complex picture, characteristic of social processes shaped by multiple conjuctural causation. It is not
the machinations of the Reagan administration and of the Salvadoran Right, but a complex interaction of legal requirements,
contextual nuances, and factors related to party competition, that emerge as more relevant determinants of the nature and
outcomes of those elections. Whatever “demonstrative effects” may be attributed to them, one cannot ignore their impact on
a domestic audience of ordinary citizens and political leaders who eventually came to understand their, limitations as well
as their ultimate efficacy.
In 1971 ENRIQUE A. BALOYRA, received his Ph.D. at The University of Florida and joined the Department of Political Science
at The University of North Carolina at Chapel Hill, where he became full professor and director of the Institute of Latin
American Studies. In 1985 he joined the Graduate School of International Studies of the University of Miami, serving as associate
dean until 1991. His early work was on electoral participation and public opinion in Venezuela. In 1982 he publishedEl Salvador in Transition (The University of North Carolina Press) and followed this with a dozen articles and chapters on the dynamics of the Salvadoran
civil war and regime transition. This fall, The University of New Mexico Press is publishingContradictions and Change in Cuba, an anthology which he co-edited and to which he contributed three chapters. His current project is a Boolean analysis of
regime transitions. 相似文献
74.
Ronald Fischer Maria Cristina Ferreira Ding-Yu Jiang Bor-Shiuan Cheng Mustapha M. Achoui Corbin C. Wong Gulfidan Baris Socorro Mendoza Nathalie van Meurs Donna Achmadi Arif Hassan Gunes Zeytinoglu Figen Dalyan Charles Harb Dania D. Darwish Eveline M. Assmar 《Social Justice Research》2011,24(4):297-313
Previous research examined whether justice effects are comparable, focusing on quantitative differences in justice effects. This study examines whether justice perceptions are structured similarly or whether they are qualitatively different across working populations from 13 nations. Confirmatory factor analysis and multi-group analysis show that Colquitt??s (J Appl Psychol 86:386?C400, 2001) four-dimensional model of justice works well across these samples. However, factor intercorrelations and reliabilities are found to systematically vary between cultural samples. Perceptions of justice are more highly intercorrelated in power distant and collectivistic samples, in line with extensions of the relational model of authority. Score reliabilities were lower in collectivistic settings. 相似文献
75.
Abstract: A new universal graphic dental system, Forensic Dental Symbols©, has been created to provide precision in the construction of dental records, improve standardization, and increase efficiency in dental identification procedures. Two hundred and thirty‐four different graphic symbols representing the most frequent clinical status for each tooth were designed. Symbols can be then converted to a typographic font and then are ready to use in any computer. For the appropriate use, manipulation, and storage of dental information generated by the Forensic Dental Symbols©, Dental Encoder© database has been created. The database contains all the information required by INTERPOL Disaster Victim Identification (DVI)‐dental‐forms. To explore the possibilities that Dental Encoder© offers, an antemortem dental database from a Spanish population of 3920 military personnel had been constructed. Data generated by Dental Encoder© were classified into sex and age groups. The program can perform an automatic search of the database for cases that match a selected clinical status presented in a single tooth or a combination of situations for several teeth. Moreover, Dental Encoder© allows information to be printed on INTERPOL DVI‐dental‐forms, or the inclusion of any completed form into any document, technical report, or identification of dental report. 相似文献
76.
There have been many methods proposed to estimate the age of human bones in forensic medicine or in forensic anthropology, including those that assess histological structures. In this study, age was evaluated through the histomorphometric study of trabecular volume and cortical width of the right iliac crest. A total of 25 samples A total of 66 samples (42 male and 24 female) were obtained from necropsies of judicial cases, with ages ranging from 13 to 58years, who had died a sudden or violent death. The samples were obtained using Bordier's trocar for bone biopsy, in a period not exceeding 24h after death. The samples were examined without decalcification, with 96° alcohol dehydration, embedding in methyl methacrylate, and sectioned with a microtome Reichert (3μm). The sections were fixed on microscope slides and stained using toluidine blue, Goldner trichrome and hematoxylin-eosin methods. The samples were studied under a Leica DM LB microscope and the images were digitally captured. The digital images were processed using an image analysis program and data were analyzed using the SPSS statistical package. The results demonstrated that the combination of the trabecular volume and cortical width acted as predictors of the age in subjects which did not suffer from any deterioration of bone and/or mineral metabolism. 相似文献
77.
Robert K. Valenzuela M.S. Miquia S. Henderson B.S. Monica H. Walsh B.S. Nanibaa’ A. Garrison Ph.D. Jessica T. Kelch B.S. Orit Cohen‐Barak Ph.D. Drew T. Erickson Ph.D. F. John Meaney Ph.D. J. Bruce Walsh Ph.D. Keith C. Cheng M.D. Ph.D. Shosuke Ito Ph.D. Kazumasa Wakamatsu Ph.D. Tony Frudakis Ph.D. Matthew Thomas Ph.D. Murray H. Brilliant Ph.D. 《Journal of forensic sciences》2010,55(2):315-322
Abstract: Genetic information in forensic studies is largely limited to CODIS data and the ability to match samples and assign them to an individual. However, there are circumstances, in which a given DNA sample does not match anyone in the CODIS database, and no other information about the donor is available. In this study, we determined 75 SNPs in 24 genes (previously implicated in human or animal pigmentation studies) for the analysis of single‐ and multi‐locus associations with hair, skin, and eye color in 789 individuals of various ethnic backgrounds. Using multiple linear regression modeling, five SNPs in five genes were found to account for large proportions of pigmentation variation in hair, skin, and eyes in our across‐population analyses. Thus, these models may be of predictive value to determine an individual’s pigmentation type from a forensic sample, independent of ethnic origin. 相似文献
78.
Marta I. Saloña Ph.D. M. Lourdes Moraza Ph.D. Miguel Carles‐Tolrá Ph.D. Victor Iraola Ph.D. Pablo Bahillo Ph.D. Tomás Yélamos Ph.D. Raimundo Outerelo Ph.D. Rafael Alcaraz M.D. 《Journal of forensic sciences》2010,55(6):1652-1655
Abstract: Arthropods at different stages of development collected from human remains in an advanced stage of decomposition (following autopsy) and from the soil at the scene are reported. The corpse was found in a mixed deciduous forest of Biscay (northern Spain). Soil fauna was extracted by sieving the soil where the corpse lay and placing the remains in Berlese–Tullgren funnels. Necrophagous fauna on the human remains was dominated by the fly Piophilidae: Stearibia nigriceps (Meigen, 1826), mites Ascidae: Proctolaelaps epuraeae (Hirschmann, 1963), Laelapidae: Hypoaspis (Gaeolaelaps) aculeifer (Canestrini, 1884), and the beetle Cleridae: Necrobia rufipes (de Geer, 1775). We confirm the importance of edaphic fauna, especially if the deceased is discovered in natural environs. Related fauna may remain for days after corpse removal and reveal information related to the circumstances of death. The species Nitidulidae: Omosita depressa (Linnaeus, 1758), Acaridae: Sancassania berlesei (Michael, 1903), Ascidae: Zerconopsis remiger (Kramer, 1876) and P. epuraeae, Urodinychidae: Uroobovella pulchella (Berlese, 1904), and Macrochelidae: Glyptholaspis americana (Berlese, 1888) were recorded for the first time in the Iberian Peninsula. 相似文献
79.
Mary Davoren Constantinos Kallis Rafael A. González Mark Freestone Jeremy W. Coid 《The journal of forensic psychiatry & psychology》2017,28(5):639-658
Intimate partner violence (IPV) is a serious, preventable public health problem. IPV perpetration is strongly associated with Anxiety disorders at the population level. We investigated whether the association could be explained by coexisting psychiatric conditions or Borderline personality traits, using a combined data-set of two National Household Surveys (n = 15,973). Results showed women were more likely to report perpetrating IPV than men. Anxiety disorders were associated with IPV. When coexisting psychiatric conditions together with a categorical diagnosis of Borderline Personality Disorder (BPD) were investigated as explanatory variables, 19.2% of the association between Anxiety disorders and IPV was explained. Using individual Borderline traits in place of a categorical diagnosis of BPD, 58.3% of the association was explained. In conclusion, the association between Anxiety disorders and IPV was partly, but not fully, explained by coexisting psychiatric conditions and individual Borderline traits. Perpetrators of IPV should be screened for Anxiety disorders and among those with Anxiety disorders, Borderline traits are important. 相似文献
80.