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981.
A flow‐injection analysis tandem mass spectrometry (FIA MSMS) method was developed for rapid quantitative analysis of 10 different inorganic and organic explosives. Performance is optimized by tailoring the ionization method (APCI/ESI), de‐clustering potentials, and collision energies for each specific analyte. In doing so, a single instrument can be used to detect urea nitrate, potassium chlorate, 2,4,6‐trinitrotoluene, 2,4,6‐trinitrophenylmethylnitramine, triacetone triperoxide, hexamethylene triperoxide diamine, pentaerythritol tetranitrate, 1,3,5‐trinitroperhydro‐1,3,5‐triazine, nitroglycerin, and octohy‐dro‐1,3,5,7‐tetranitro‐1,3,5,7‐tetrazocine with sensitivities all in the picogram per milliliter range. In conclusion, FIA APCI/ESI MSMS is a fast (<1 min/sample), sensitive (~pg/mL LOQ), and precise (intraday RSD < 10%) method for trace explosive detection that can play an important role in criminal and attributional forensics, counterterrorism, and environmental protection areas, and has the potential to augment or replace several of the existing explosive detection methods.  相似文献   
982.
Anatomical landmarks are considered the most objective indicators for use in forensic facial comparisons. Therefore, accurately identifying and locating these landmarks is the beginning of reliable facial comparison. This study evaluated the accuracy with which facial landmarks are located and examined their reliability according to type of landmark, head posture, and image quality. Nine operators located a series of landmarks on prepared facial images used to produce comparison images. Then, the average distances between the reciprocal landmarks (ADRL) on the reference and the comparison images were measured as indicators of landmark reliability. We found that a set of landmarks had higher or lower reliability as a function of the head angle and image quality. More reliable landmarks were associated with certain head postures and degrees of image quality. These should be used for facial comparison analysis depending on various head and image conditions.  相似文献   
983.
Once thousands of dollars, direct‐to‐consumer (DTC) genetic testing has become affordable and readily accessible in recent years. The technology can reveal a wealth of information to consumers: health risks, ancestry composition, and connections to genetic matches through relative databases. However, the law has not yet regulated many aspects of this new technology. This article analyzes how the law should regulate DTC genetic testing within the context of gamete donation. It will argue that gamete donors’ privacy interests warrant state regulation of DTC genetic testing kits and their associated genetic relative databases. It will also explore how state regulation should balance the competing interests of gamete donors and of donor‐conceived individuals.  相似文献   
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987.
The study, drawing on the political settlement approach, examines how powers, institutions, networks, and interests influence the pricing of petroleum products in Ghana. Qualitative research approach was for the study, and purposive sampling was used to interview 24 respondents. The findings suggest the existence of power struggles among the key actors in the pricing of fuel. The findings revealed that the National Petroleum Authority, bulk distribution oil companies, oil marketing companies, International Monetary Fund, and energy policy think tanks influence result into policy. Actors influence fuel prices through taxes, policy guidelines, exchange rate, and legal actions. The study recommends that capacity of the key players should be built by the Government of Ghana so as to ensure healthy competition and stability in the pricing of petroleum products in Ghana. Political interference in the pricing of fuel should be limited so that the key players can operate successfully in the petroleum downstream.  相似文献   
988.
The United Nations (UN) system comprises several intergovernmental organizations (IGOs) that were established to contribute to the functioning of the overall transnational system of delivering global public goods. However, many IGOs under the UN system are criticized for their failure to accomplish their mandates. Research argues that IGO boards serve as a governance mechanism that should be designed in order to effectively perform the monitoring function to ensure fulfillment of IGO mandates. Thus, using an inductive fuzzy set qualitative comparative analysis, this study explores 13 IGO boards under the UN system to identify the board designs that are associated with highly effective monitoring. Our findings reveal a board design typology reflecting the interplay of the level of organizational complexity and the extent of the distribution problem in IGOs. This research contributes to our understanding of IGO governance by underscoring the relationship between board designs and highly effective monitoring to help researchers and practitioners improve IGO performance.  相似文献   
989.
A fire experiment conducted in a British 1950s‐style house is described. Measurements of temperature, smoke, CO, CO2, and O2 were taken in the Lounge, stairwell, and front and back bedrooms. The front bedroom door was wedged open, while the door to the back bedroom was wedged closed. Contrary to expectations and despite the relatively small fire load, analysis and hazard calculations show permeation of toxic fire gases throughout the property with lethal concentrations of effluent being measured at each sampling point. A generally poor state of repair and missing carpets in the upper story contributed to a high degree of gas and smoke permeation. The available egress time was calculated as the time before the main escape route became impassable. Given known human responses to fire, such an incident could have caused fatalities to sleeping or otherwise immobile occupants.  相似文献   
990.
Postmortem investigation often reveals various conditions, which may or may not have played a part in the death of the individual. The case of a 32‐year‐old woman is reported, with a long history of drug addiction. She was found dead in her bed. The autopsy revealed diffuse pulmonary edema with congestion of the lungs, brain, liver, and spleen. Microscopic examination of the lungs showed multiple intra‐alveolar and interstitial foamy macrophages and extracellular fat droplets surrounded by polynuclear giant cells. Death was attributed to acute polydrug intoxication. As microscopic examination had revealed severe pulmonary lesions, lipoid pneumonia was considered as a contributing factor to death. Lipoid pneumonia is an uncommon entity with the characteristic radiograph features and histologic findings of alveoli filled with vacuolated, lipid‐laden histiocytes. It can be either exogenous or endogenous in cause, based on the source of the lipid. Exogenous lipoid pneumonia usually results from aspiration or inhalation of fat‐like material, such as mineral oil or petroleum‐based lubricants and decongestants, resulting in pulmonary inflammatory reactions.  相似文献   
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