EC1405 Barrel Incinerator for Dead Poultry

Extension circular 1405 discusses the barrel incinerator for dead poultry

How Am I Different? Childhood Cancer Survivors' Perspectives on Change and Growth

http://deepblue.lib.umich.edu/bitstream/2027.42/51193/1/426.pd

Quantum Oscillations of Electrons and of Composite Fermions in Two Dimensions: Beyond the Luttinger Expansion

Quantum oscillation phenomena, in conventional 2-dimensional electron systems and in the fractional quantum Hall effect, are usually treated in the Lifshitz-Kosevich formalism. This is justified in three dimensions by Luttinger's expansion, in the parameter $omega_c/\mu$. We show that in two dimensions this expansion breaks down, and derive a new expression, exact in the limit where rainbow graphs dominate the self-energy. Application of our results to the fractional quantum Hall effect near half-filling shows very strong deviations from Lifshitz-Kosevich behaviour. We expect that such deviations will be important in any strongly-interacting 2-dimensional electronic system.Comment: 4 pages, 3 figures, LaTe

Disentangling the pollen signal from fen systems : modern and Holocene studies from southern and eastern England

Thick deposits of peat derived from fen environments accumulated in the coastal lowland areas adjacent to the North Sea during the middle and late Holocene. These sediments are frequently used in pollen-based reconstructions of in situ and more distant vegetation. However, discriminating between wetland and dry land originating pollen signals, and between the potential fen communities present in the wetland, is complex. In this study, a suite of analytical approaches are used to explore the pollen signal of modern fen communities and compare them against Holocene pollen assemblages. At two sites in eastern England, Woodwalton Fen and Upton Broad, vegetation composition was recorded around a series of moss polster sampling points. The communities investigated included herbaceous fen communities under different cutting regimes, a grazed area, glades, and woodland with canopies dominated by Alnus glutinosa and Betula. Cluster analysis is used to provide an overview of, and compare the structure within, the datasets consisting of the vegetation, the vegetation converted to palynological equivalents, and the pollen data. It is demonstrated that any loss of taxonomic precision in pollen identifications does not pose particular problems when attempting to identify fen communities, including tall-herbaceous vegetation, in the pollen record. Indices of Association imply pollen presence can be interpreted as indicating the local presence for some taxa, though few of these are confined to a particular community. Herbaceous fen vegetation subject to different management regimes are, however, shown to produce distinctive pollen signatures. Middle and late Holocene pollen assemblages from eastern (Fenland) and southern (Romney Marsh) England, interpreted as derived from fen vegetation, are compared against the modern pollen dataset using ordination. Most of the fossil samples plot out within or adjacent to the groupings produced by the modern samples in the ordinations. While these investigations demonstrate that modern pollen work can help improve the interpretation of Holocene assemblages they also call attention to a number of limitations including the restricted range of communities from which modern samples are currently available and the potential for non-analogous modern vegetation. The paper concludes with ideas to aid the interpretation of pollen data collected from fen peats and suggestions for future work

Meaning making and childhood cancer: A study of structure and agency in the narratives of Mexican, Mexican American, and Anglo-American mothers of children with cancer.

How do mothers construct meaning around the experience of childhood cancer? For most people, cancer is a specter of death that enters without warning like a ruthless secret invasion (Sontag 1978). But when it strikes children, cancer is even more mysterious and threatening, for then it attacks the most innocent and most vulnerable members of society--those who society wants most to protect. In depth interviews were conducted with a total of fifty Mexican, Mexican-American, and Anglo-American mothers of children with cancer in two different hospital settings (in the United States and Mexico). The narratives that resulted from those interviews were then analyzed using qualitative, inductive, and thematic coding procedures. Narrative meaning was defined as sets of cognitive connections created by mothers in order to try to fit the reality of their child's diagnosis and treatment into a framework of understanding. These sets of connections clustered around problematic and/or particularly salient aspects of the experience of having a child in treatment for cancer. Discussion focuses on the ways differing sets of schemas and resources combined to create different meaning systems in the three respondent groups around issues such as cost of treatments, severity of symptoms at diagnosis, Latina self awareness, loosing sense of self, looking for causes, finding personal strength, and the community of mothers in the hospital. Not all issues were found in all three respondent groups.Ph.D.Ethnic studiesIndividual and family studiesSocial SciencesSociologyUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/129501/2/9513504.pd

Resonant and core level photoemission spectroscopy of the misfit layer compound (SnS)1.20TiS2

(SnS)1.20TiS2 is member member of a family of misfit layer compounds with a general formula (MX)1+δTX2 in which M = Sn, Pb, Bi, Ln; T = Ti, V, Cr, Nb, Ta; X = S, Se and 0.08 < δ < 0.23. The triclinic compound (SnS)1.20TiS2 is built of double layers SnS and sandwiches TiS2 with Ti trigonally antiprismatic coordinated by S. These misfit layer compounds are synthesized at high temperature. The stability gained by the alternation of the stacking must therefore be considerable. The valence band spectrum, a constant initial state spectrum and core level spectra are presented here for (SnS)1.20TiS2 to discuss a possible charge transfer. A photoemission resonance is observed for the Ti 3d states at photon energies around 35 eV. The energy of the Ti 3p states is 35.4 eV below the Fermi level. The spectra presented here do not give any arguments for a charge transfer. Therefore we think that the stability of (SnS)1.20TiS2 does not arise from a charge transfer from one layer to another

A LEED and photoemission spectroscopy study of the surface of the incommensurate misfit layer and compound (SnS) 1.16 TaS2

The misfit layer compounds with stoichiometry (MX)1+δTX2 are composites of MX and TX2 layers, which are stacked alternatingly. This type of compound is known for M = Sn, Pb, Bi, La; T = Ti, Ta, Nb and X = S, Se. The MX layers adopt an SnS-type crystal structure. The compounds are synthesized at high temperature. Therefore the stability gained by the alternation of the stacking of the TX2 layers by MX layers must be considerable. LEED photographs and angular resolved UPS spectra are presented to show the large differences between the commensurate and the incommensurate directions in (SnS)1.16TaS2. Core level photoemission spectra indicate that there is no charge transfer from one layer to the other. Thus the stability of (SnS)1.16TaS2 cannot be explained by charge transfer

A Brief Review of the Psychosocial Literature and Our Research Plans/Progress with Adolescent/Young Adult Survivors of Childhood Cancer

http://deepblue.lib.umich.edu/bitstream/2027.42/51295/1/531.pd