G-BASE data conditioning procedures for stream sediment and soil chemical analyses

Data conditioning is the process of making data fit for the purpose for which it is to be used and forms a significant component of the G-BASE project. This report is part of a series of manuals to record G-BASE project methodology. For data conditioning this has been difficult as applications used for processing data and the way in which data are reported continue to evolve rapidly and sections of this report have had to be continually updated to reflect this fact. However, the principals of data conditioning have changed little since the BGS regional geochemical mapping started in the late 1960s. The process of data conditioning is based on one or more quality control procedures applied to the geochemical results as received from the laboratories, the degree of conditioning depending on how the data is to be used. The task is based on "blind" control samples being inserted prior to analysis, a system of quality control described in the G-BASE procedures manual. The first of the data conditioning processes is data verification and error checking, essentially assessing whether the laboratory has done what it was asked to do and results are being reported with reasonable accuracy. Shewhart or control charts form an important part of this process. Once the data has been error checked, verified and accepted from the laboratory, further analysis of the data is carried out. These processes include: a series of x-y plots (of duplicate and replicate samples), more detailed control chart plots, and ANOVA analysis of the duplicate/replicate pairs to allocate variance in the results to sampling, analytical or between site variability. Analysis of both primary and secondary reference material can quantify analytical accuracy and precision. An important part of the data conditioning is the quality assurance and this includes procedures used for dealing with results that have data quality issues and documenting all parts of the data conditioning procedure. The final part of the data conditioning procedure is necessary in order to use the data in context of other previously analysed data sets. This is the process of normalisation and levelling of the data. In G-BASE this is a very necessary step in order to create seamless geochemical maps and images across campaign boundaries and varying analytical methodologies that have spanned several decades

G-BASE field procedures manual : version 1.1

The G-BASE project is a long-term systematic geochemical survey that has required a high degree of consistency in its sampling methodologies. This report gives in detail all the project procedures associated with the collection of geochemical samples from the planning phase in the office through to sample reception and reporting of the completed field campaign. The procedures described here should be diligently followed in order to maintain the high levels of quality control the project aspires to. Any changes to procedures are indicated in the latest version of this manual and documented in an updates list in Annex I. In addition to describing all the fieldwork procedures, the recruitment and training of "voluntary" student workers is described along with discussions relating to health and safety issues likely to be encountered during sampling. When describing the methods used by G-BASE in reports or publications, reference should be made to this manual

Tachyon Condensation, Open-Closed Duality, Resolvents, and Minimal Bosonic and Type 0 Strings

Type 0A string theory in the (2,4k) superconformal minimal model backgrounds and the bosonic string in the (2,2k-1) conformal minimal models, while perturbatively identical in some regimes, may be distinguished non-perturbatively using double scaled matrix models. The resolvent of an associated Schrodinger operator plays three very important interconnected roles, which we explore perturbatively and non-perturbatively. On one hand, it acts as a source for placing D-branes and fluxes into the background, while on the other, it acts as a probe of the background, its first integral yielding the effective force on a scaled eigenvalue. We study this probe at disc, torus and annulus order in perturbation theory, in order to characterize the effects of D-branes and fluxes on the matrix eigenvalues. On a third hand, the integrated resolvent forms a representation of a twisted boson in an associated conformal field theory. The entire content of the closed string theory can be expressed in terms of Virasoro constraints on the partition function, which is realized as wavefunction in a coherent state of the boson. Remarkably, the D-brane or flux background is simply prepared by acting with a vertex operator of the twisted boson. This generates a number of sharp examples of open-closed duality, both old and new. We discuss whether the twisted boson conformal field theory can usefully be thought of as another holographic dual of the non-critical string theory.Comment: 37 pages, some figures, LaTe

Beyond Localized Environmental Contention: Horizontal and Vertical Diffusion in a Chinese Anti-Incinerator Campaign

Environmental contention is mounting all across China. In particular, protests against environmentally hazardous construction projects have become a frequent phenomenon, spreading well beyond China's major cities. While these protests are gaining growing academic attention, they have mostly been analyzed as separate phenomena in isolation from each other. Moreover, such grievance-based environmental contention has largely been investigated separately from “environmentalist” activism underpinned by environmental organizations and broader environmental concerns. Yet recent protest waves against the construction of facilities such as waste incinerators and industrial facilities reveal the emergence of linkages and diffusion processes between cases and actors that challenge depictions of Chinese environmental contention as a necessarily purely localized and parochial affair. This article examines this new development in Chinese environmental activism through a detailed case study of an anti-incinerator campaign centered on a village in Hebei Province. It shows how linkages emerged horizontally between local residents and community activists involved in anti-incinerator campaigns elsewhere, and vertically between villagers and members of China’s nascent “no burn” community, a group of actors highly critical of waste incineration in China. We conclude that both types of linkages were crucial for the development and success of the villagers’ campaign. Although opportunity for upward scale-shift based on active intra-community collaboration remains highly constrained, vertical ties and non-relational horizontal linkages ensure that the impact of environmental campaigns reaches beyond the immediate localities in which they occur

Stochastic Quantization vs. KdV Flows in 2D Quantum Gravity

We consider the stochastic quantization scheme for a non-perturbative stabilization of 2D quantum gravity and prove that it does not satisfy the KdV flow equations. It therefore differs from a recently suggested matrix model which allows real solutions to the KdV equations. The behaviour of the Fermi energy, the free energy and macroscopic loops in the stochastic quantization scheme are elucidated.Comment: 17 page

Trace elements in the nutrition and immunological response of grazing livestock

Sheep and cattle are complex biological factories. Outputs or products from these factories may be meat, milk, wool, developing fetus, etc. The inputs or raw products going into the system include oxygen, water, carbohydrates, proteins, vitamins and minerals. Production can be slowed down when any of the operating inputs is out of balance. Some minerals are required in relatively large amounts and are known as the major elements. Others are required in much smaller amounts and generally function in various enzymatic reactions in the body. Minerals in this last group are referred to as trace elements and include cobalt (Co), copper (Cu), iron (Fe), iodine (I), manganese (Mn), selenium (Se), zinc (Zn), and molybdenum (Mo)

Simultaneous Embeddability of Two Partitions

We study the simultaneous embeddability of a pair of partitions of the same underlying set into disjoint blocks. Each element of the set is mapped to a point in the plane and each block of either of the two partitions is mapped to a region that contains exactly those points that belong to the elements in the block and that is bounded by a simple closed curve. We establish three main classes of simultaneous embeddability (weak, strong, and full embeddability) that differ by increasingly strict well-formedness conditions on how different block regions are allowed to intersect. We show that these simultaneous embeddability classes are closely related to different planarity concepts of hypergraphs. For each embeddability class we give a full characterization. We show that (i) every pair of partitions has a weak simultaneous embedding, (ii) it is NP-complete to decide the existence of a strong simultaneous embedding, and (iii) the existence of a full simultaneous embedding can be tested in linear time.Comment: 17 pages, 7 figures, extended version of a paper to appear at GD 201

Living under the dome: Individual strategies against air pollution in Beijing

Although poor air quality has been a fact of life for millions of Chinese citizens for at least two decades, individual actions to alleviate the impact of air pollution are a more recent phenomenon. Anecdotal evidence suggests that individualized responses to environmental risks and threats, which Andrew Szasz (2007) termed “inverted quarantine,” are becoming increasingly common in China. However, there is little indication about how far inverted quarantine prevails. To address this gap, in 2015 we surveyed over 1000 Beijing residents into strategies for coping with air pollution. The results are partly consistent with other findings in relation to food safety, providing further evidence of the prevalence of inverted quarantine in response to public health risks in contemporary China. Our empirical evidence also shows public skepticism about the efficacy of individualized solutions to ambient air pollution. Without a serious preventive alternative, inverted quarantine is, at best, a temporary expedient