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1.
An HPLC-APCI-MS(/MS) method for the (trace) analysis of the most commonly encountered peroxide explosives, hexamethylenetriperoxidediamine (HMTD) and triacetonetriperoxide (TATP), has been developed. With this method, HMTD and TATP have been analyzed in the same run. (Pseudo-)molecular ions of these peroxides have been obtained as base peak under the same condition. A series of product ions was produced from these pseudo-molecular ions ([HMTD - 1]+ and [TATP + NH4]+) in the MS/MS analysis. We also pioneered in showing that a TATP molecular ion [TATP + H]+ can be observed with HPLC-MS/MS. The limit of detection for HMTD and TATP was 0.26 and 3.3 ng, respectively, on column by HPLC-MS in the Full Scan mode and 0.08 and 0.8, respectively, by HPLC-APCI-MS/MS in Selected Reaction Monitoring (single mass unit) mode. The method presented has been applied successfully for the identification of peroxides in the bulk solid state (powder sample), as well as in post-blast extracts originating from a forensic case. For the post-blast extracts, the use of tandem MS has been shown clearly to be of crucial importance for the identification and detection of the peroxide explosives.  相似文献   
2.
European Union (EU) is expanding its territories, and Turkey has been making adaptive changes in many aspects for an integration with EU. In this regard, amendments on forensic autopsy procedures have been effective from June 1, 2005. This article delineates these changes, emphasizing the differences between the previous and the current procedures.  相似文献   
3.
This article is based on the reconstructed life course patterns of about 1500 adolescent men and women, born between 1833 and 1912 in the Dutch province of Utrecht. The incidence of youth migration is investigated by sex, birth period, and birthplace. The influence of the family on the decision to migrate is analyzed with event history techniques. The results are evaluated in the context of regional customs related to the process of leaving home. A large number of persons, between 30 and 55 percent of all unmarried youths, participated in youth migration. However, family strategies were more directed toward keeping offspring from migrating than toward stimulating them to move.  相似文献   
4.
The collection presents an approach to history in which the dominance of structure is replaced by the effects of human agency. Individual motives and actions are the subject of these studies. In particular, the articles focus on the economic approach of family strategies, starting with a methodological discussion of the problematic concept of strategies: how to disentangle the influence of social structure, family circumstances, and individual behavior. The conflicting interests of individuals resulted in replacing the so-called “joint utility function” with that of “bargained family decisions.” The focus of the contributions is on the labor deployment of family members. All articles deal with three factors influencing labor deployment: adaptation to the structural environment, regulation of labor within the family, and reconciliation of choices at transition points during the individual life course of family members.  相似文献   
5.
During the 6th Conference of Parties (COP-6) in The Hague, the Netherlands, November 2000, crucial progress on a number of outstanding issues related to the Kyoto Protocol will have to be made to open the way for its early ratification, if not to save it from complete failure. Given the present lack of internal US political support for the Kyoto Protocol, the EU may play a pivotal role in making the Kyoto Protocol agreement a reality even without initial ratification of the US, if its able to provide sufficient leadership. In this overview article we discuss the main issues under negotiation, the problems of finding agreement and opportunities for the EU to catalyse a compromise agreement at COP-6, building on key scientific papers as included in this issue and discussions at the European Forum on Integrated Environmental Assessment Climate Policy Workshop in Amsterdam. Key elements are the inclusion of sinks, the use of the Kyoto Protocol mechanisms as a supplement to domestic action and the international compliance system. Domestic implementation of climate policy is a major factor for the EU's credibility.  相似文献   
6.
The Sri Lanka National Archives (SLNA) in Colombo preserve under the names of head thombo and land thombo several hundreds of eighteenth-century registers on family composition and landownership. At the time of their compilation by the Dutch East India Company or VOC the thombos suited a general administrative purpose; currently they are used only in genealogical research and in court cases concerning land disputes. Demographic, family and colonial history, however, can profit considerably from this neglected source. In the following we describe a project to digitize the registers of the Colombo province, and we discuss and evaluate the variables in the database by focusing on the family groups of a relatively small district.  相似文献   
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This study investigates the lives of the women and children who accompanied the soldiers to the British garrison at Gibraltar during the last decades of the 19th century. Marriage in the army was controversial, and officials were divided on the subject: some saw the benefits of married life and realized the large amount of unpaid labor contributed by the women of the regiments; others believed that marriage was the “serious evil of marching regiments.” This study uses a military census taken in 1878 to analyze the age and sex structure of the military population at Gibraltar. Its structure is distinctive with no elderly individuals and few children in their teens. This pattern was the result of army directives, such as those governing the age of dependents and controlling marriage among the troops.  相似文献   
10.
In this article, the preceding case studies are evaluated from the perspective of the family strategies concept. The studies have yielded new insights in the relationship between the family and the labor market and in the labor allocation within families. In addition, they have shown the tensions between individual life plans and collective needs. It has been difficult, however, to reach firm conclusions about which strategies were deployed by families. One of the problems is that the motives of the family members remain hidden. In addition, our databases need to be more finely tuned to the strategies concept. In particular, we know too little on the range of (strategic) options of families in the past.  相似文献   
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