Evaluation of the Analytical Performance of a Fuel Cell Breath Alcohol Testing Instrument: A Seven‐Year Comprehensive Study

Abstract: Between 2003 and 2009, 54,255 breath test sequences were performed on 129 AlcoSensor IV–XL evidential instruments in Orange County, CA. The overall mean breath alcohol concentration and standard deviation from these tests was 0.141 ± 0.051 g/210 L. Of these test sequences, 38,580 successfully resulted in two valid breath alcohol results, with 97.5% of these results agreeing within ±0.020 g/210 L of each other and 86.3% within ±0.010 g/210 L. The mean absolute difference between duplicate tests was 0.006 g/210 L with a median of 0.004 g/210 L. Of the 2.5% of duplicate test results that did not agree within ±0.020 g/210 L, 95% of these had a breath alcohol concentration of 0.10 g/210 L or greater and 77% had an alcohol concentration of 0.15 g/210 L or greater. The data indicate that the AlcoSensor IV–XL can measure a breath sample for alcohol concentration with adequate precision even amid the effects of biological variations.     

Quantification of Morphine,Codeine, and Thebaine in Home‐Brewed Poppy Seed Tea by LC‐MS/MS

Recently, medical examiners reported two cases of a 21‐year‐old male and 24‐year‐old male with high amounts of morphine in their blood at autopsy. It was suspected that the decedents ingested lethal amounts of morphine from home‐brewed poppy seed tea. No studies to date have investigated opium alkaloid content extracted from poppy seeds by home‐brewing methods. Various poppy seed products were purchased from online sources and extracted with four home‐brewing methods representative of recipes found on drug user forums. Morphine, codeine, and thebaine were quantified in the tea extracts by liquid chromatography‐tandem mass spectrometry using a validated analytical method. Morphine, codeine, and thebaine concentrations from seeds were <1–2788 mg/kg, <1–247.6 mg/kg, and <1–124 mg/kg, respectively. Alkaloid yield varied between extractions, but regardless of extraction conditions, lethal amounts of morphine can be rinsed from poppy seed coats by home‐brewing methods.     

如何保护你的知识产权

知识产权已经成为现代法律体系中变化最快的领域之一,每一位商人都有必要拥有一位通晓知识产权原则、对因不慎便可能陷入的知识产权陷阱有所了解的律师。商标名称、标志、图标及其三者的组合一旦被用来标识产品或者服务的来源时便落入了商标法调整的范围。为了确定一件商标能否被一个商业机构合法利用,就有必要首先确定该名称、标志或图标是否有可能得到保护以及该拟用商标与某个受保护的商标听起来或者看起来是否相同或者相似从而容易产生混淆。在ISCYRA诉ommyHilfiger(80F.3d749(2dCir.1996))一案中,世界著名的服装设计师希望使用“星…     

National Representation in International Organizations: The Seat Allocation Model Implicit in the European Union Council and Parliament

What determines the allocation of voting weights to member states in international organizations? What drives the seat and voting weight allocation in the European Parliament (EP) and in the Council of the European Union (EU)? Our objective in this article is to develop a universal logical model and to demonstrate that the resulting equation indeed captures negotiated outcomes on seat and voting weight allocations in EU institutions from their beginning. We predict seat and voting weight allocations for both the EP and the Council of the EU within one general model. Hence, we do not employ actual data on seat allocations or voting weights in either the EP or the Council of the EU, but instead, use logical constraints exclusively, as posed by the following elements: the total number of seats/voting weights ( S ), the number of member states ( N ) and, finally, their respective population size ( P_i ). Only our final model selection among several theoretical options is guided by empirical information. With no post hoc parameters used, our model fits both the Council of the EU and the EP rather well, over a time span of nearly 40 years. Inspired by the 'seat–vote equation' ( Taagepera, 1973 ) for seat allocation in national legislatures, the new 'seat–population equation' calculates the number ( S _i) of EP seats or Council voting weights of member state i as follows:     , where n =(1/log  N − 1/log  S )/(1/log  N − 1/log  P ), P being the total population (as summed over all member states). We posit that this equation is applicable to predict outcomes in practice whenever voting weight or seat allocations in international organizations are allocated on the basis of the population shares of their component entities.     

John and Jane Doe: the epidemiology of unidentified decedents

Abstract:  The number of people who cannot be identified at the time of death, sometimes referred to as John or Jane Does, is unknown, and little is known about them as a group. The study's objectives were to estimate the number of annual unidentified deaths, to identify demographic characteristics associated with dying unidentified, to determine whether the rates of such deaths vary geographically or over time, and to better characterize the causes of death. This was a population-based surveillance study of data collected from death certificates from 1979 to 2004 in the U.S. Subjects were selected by the absence of name, date of birth, and Social Security Number on their certificates. Main outcome measures were distributions by age, sex, and underlying cause of death and rates by sex, race, year, and state of death. An average of 413 unidentified persons died each year. The peak year was 1987 with 691 deaths, a rate of 28.5 per 10 million people. The rate declined to 9.7 per 10 million in 2004. Most unidentified decedents were male (80.6%). Unidentified death rates were highest among black people and in the Southwest. Among deaths for which the cause was known, 82.7% were due to injuries. Among injury deaths, 31.8% were homicides. Improvement in identification technology may have reduced rates of unidentified death since the 1980s. In addition, variations in rates of unidentified decedents may reflect changes in risk factors such as homelessness and substance abuse.