Quantitavive spectroscopy

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Mercury in the environs of the north slope of Alaska

The analysis of Greenland ice suggests that the flux of mercury from the continents to the atmosphere has increased in recent times, perhaps partly as a result of the many of man’s activities that effect an alteration of terrestrial surfaces. Upon the exposure of fresh crustal matter, the natural outgassing of mercury vapor from the earth’s surface could be enhanced. Accordingly, mercury was measured in a variety of environmental materials gathered from the North Slope of Alaska to provide background data prior to the anticipated increase of activity in this environment. The materials were collected during the U. S. Coast Guard WEBSEC 72-73 cruises as well as through the facilities provided by Naval Arctic Research Laboratory in the spring of 1973. The method of measurement depended upon radioactivation of mercury with neutrons and the subsequent quantification of characteristic gamma radiations after radiochemical purification. Mercury concentrations in seawater at several locations in the vicinity of 151°W, 71°N averaged 20 parts per trillion. The waters from all stations east of this location showed a significantly smaller concentration. This difference may relate to penetration o f Bering- Chukchi Sea water into the southern Beaufort Sea to 151°W. Marine sediments on the shelf and slope between 143°W and 153°W contained about 100 parts per billion mercury, except for those on the continental shelf between Barter Island and the Canning River, where the concentration was less than half this value. These results are consistent with sediment input from the respective rivers when their mercury content and mineralogy are considered. The mercury content of river waters was 18 ppt and in reasonable agreement with the average of snow samples (13 ppt). The burden of mercury in plankton was 37 ppb.This work was supported by the office of Naval Research under grant N R 083-290

La thérapie familiale auprès de jeunes enfants

Dans cet article, l'auteure démontre à l'aide d'exemples cliniques que la thérapie familiale ne doit pas uniquement considérer le symptôme comme l'expression d'un problème familial. Elle doit se centrer sur celui-ci, s'il compromet sérieusement le développement de l'enfant ou est le seul moyen d'obtenir la coopération de la famille dans le traitement, par exemple, des cas de phobie de l'école, de cysténose et d'anorexie nerveuse. Dans les cas où le symptôme ne compromet pas le développement immédiat de l'enfant, celui-ci peut être considéré comme un signal de détresse et l'intervention du thérapeute portera alors sur les modèles transactionnels et les règles familiales sous-jacentes.In this article, the author demonstrates, using clinical examples, that family therapy must not consider the symptom uniquely as the expression of the family problem. Therapy must focus on it, if the symptom seriously compromises the child's development, or if it is the sole means of obtaining the family's cooperation in the treatment, as in the case of school phobia, of cystenosia, and of anorexia nervosa. In cases in which the symptom does not compromise the child's immediate development, it can be considered as a distress signal and the intervention of the therapist will then direct itself at the interactional models and the underlying family rule

Effective Compliance Means Imposing Individual Liability

Deputy Attorney General Sally Yates said it in a memo dated September 9, 2015, and her successor, Rod Rosenstein, said it in remarks dated October 6, 2017: corporations act through individuals, and compliance enforcement must necessarily account for holding individuals liable for the wrongs they orchestrate under cover of the corporate umbrella. The logic is reasonable and necessary. We blame corporations for catastrophic environmental events, misbranded drugs that cause injury, and financial products that destroy the life savings of those who have toiled for a living; yet at the helm of the corporations\u27guiding their path of impropriety\u27are people, many of whom who have benefited handsomely from the corporate misconduct that they have captained. Unfortunately, in comparison to the guilty pleas that are taken by corporations, which cannot be put behind bars, prosecutors\u27both criminal and civil\u27barely scratch the surface when it comes to pursuing the individual human culprits

Public-Private Litigation for Health

Public health litigation can be a powerful mechanism for addressing public health harms where alternative interventions have failed. It can draw public attention to corporate misconduct and create a public record of the actions taken and the harms done. In an ideal world, it could achieve compensation for past harms and incentivize deterrence of future misconduct. But the full public health potential of these lawsuits is rarely achieved, even when the suits are brought on behalf of federal, state, and local governments with the ostensible goal of protecting the health of the citizens. The increasing involvement of private attorneys in public litigation only adds to the challenges of using litigation to achieve public health goals. While there are continuing debates over the desirability of litigation partnerships between state attorneys general (AGs) and private counsel, as a practical matter, the involvement of private law firms in public litigation is unlikely to disappear any time soon. This Article fills a critical gap in the literature on the privatization of public litigation by showing why, despite their shortcomings, arrangements between state and private lawyers have the potential to satisfy public health goals that might otherwise remain out of reach. It provides a theory of legal research and development to show why these arrangements are not only likely to persist but are also most likely to occur in high-impact public health litigation. This Article then examines how the incentives of both state AGs and private law firms influence choices along the litigation pathway in ways that may undermine the potential to achieve public health value. It concludes by proposing a novel impact-based approach to public-private litigation, providing a decision-making framework that AGs can adopt to increase the role of public health objectives in the litigation process

Methods for comprehensive experimental identification of RNA-protein interactions

The importance of RNA-protein interactions in controlling mRNA regulation and non-coding RNA function is increasingly appreciated. A variety of methods exist to comprehensively define RNA-protein interactions. We describe these methods and the considerations required for designing and interpreting these experiments

X-Ray Scattering at FeCo(001) Surfaces and the Crossover between Ordinary and Normal Transitions

In a recent experiment by Krimmel et al. [PRL 78, 3880 (1997)], the critical behavior of FeCo near a (001) surface was studied by x-ray scattering. Here the experimental data are reanalyzed, taking into account recent theoretical results on order-parameter profiles in the crossover regime between ordinary and normal transitions. Excellent agreement between theoretical expectations and the experimental results is found.Comment: 9 pages, Latex, 1 PostScript figure, to be published in Phys.Rev.

Generic Subsequence Matching Framework: Modularity, Flexibility, Efficiency

Subsequence matching has appeared to be an ideal approach for solving many problems related to the fields of data mining and similarity retrieval. It has been shown that almost any data class (audio, image, biometrics, signals) is or can be represented by some kind of time series or string of symbols, which can be seen as an input for various subsequence matching approaches. The variety of data types, specific tasks and their partial or full solutions is so wide that the choice, implementation and parametrization of a suitable solution for a given task might be complicated and time-consuming; a possibly fruitful combination of fragments from different research areas may not be obvious nor easy to realize. The leading authors of this field also mention the implementation bias that makes difficult a proper comparison of competing approaches. Therefore we present a new generic Subsequence Matching Framework (SMF) that tries to overcome the aforementioned problems by a uniform frame that simplifies and speeds up the design, development and evaluation of subsequence matching related systems. We identify several relatively separate subtasks solved differently over the literature and SMF enables to combine them in straightforward manner achieving new quality and efficiency. This framework can be used in many application domains and its components can be reused effectively. Its strictly modular architecture and openness enables also involvement of efficient solutions from different fields, for instance efficient metric-based indexes. This is an extended version of a paper published on DEXA 2012.Comment: This is an extended version of a paper published on DEXA 201