Estimating Lynx Habitat Under Future Fire Management and Climate Change Scenarios

Climate changes have the potential to considerably alter the habitat of Canada lynx (Lynx canadensis), which are dependent on snowshoe hare throughout their range. Both species occupy areas of high altitude forest with dense cover of shrubs and saplings. The Fish and Wildlife Service has designated critical habitat for lynx, but there is little research on how these areas will change with a changing climate. We use the simulation model FireBGCv2 to run scenarios comparing climate change, fuel treatments, and fire suppression. Our results suggest that fire suppression has the most important future benefit in maintaining lynx habitat, as allowing natural fires to burn reduces the quality of lynx habitat over a fifty year modeling period. Although fires can generate the early seral stage that defines quality lynx habitat, their frequency prevents much of the modeling landscape from reaching this stage. Simulation modeling can provide a valuable platform to view the future of lynx habitat under climate change, but the limitations are numerous

On the Matrix Description of Calabi-Yau Compactifications

We point out that the matrix description of M-theory compactified on Calabi-Yau threefolds is in many respects simpler than the matrix description of a $T^6$ compactification. This is largely because of the differences between D6 branes wrapped on Calabi-Yau threefolds and D6 branes wrapped on six-tori. In particular, if we define the matrix theory following the prescription of Sen and Seiberg, we find that the remaining degrees of freedom are decoupled from gravity.Comment: 12 pages, harvmac big; comment on 4d N=1 theories change

Scratches from the Past: Inflationary Archaeology through Features in the Power Spectrum of Primordial Fluctuations

Inflation may provide unique insight into the physics at the highest available energy scales that cannot be replicated in any realistic terrestrial experiment. Features in the primordial power spectrum are generically predicted in a wide class of models of inflation and its alternatives, and are observationally one of the most overlooked channels for finding evidence for non-minimal inflationary models. Constraints from observations of the cosmic microwave background cover the widest range of feature frequencies, but the most sensitive constraints will come from future large-scale structure surveys that can measure the largest number of linear and quasi-linear modes.Comment: 5 pages + references, 1 figure; science white paper submitted to the Astro2020 decadal surve

The Human Performance Laboratory

No abstract available

Voluntary Client Testimony as a Privilege Waiver: Is Ohio\u27s Law Caught in a Time Warp

The question of whether Ohio should retain the waiver through voluntary testimony rule-assuming that is the current rule-is neither close nor difficult. The relevant statute dates back to the middle of the nineteenth century when Ohio enacted its first code of civil procedure, and if it in fact leads to a waiver, has been substantively unchanged in the intervening one hundred fifty plus years. The rule undermines the policies the attorney-client privilege was designed to further, and the policy on which the rule apparently was based-preventing perjured testimony-no longer has the primacy it did in the mid-nineteenth century and, in any event, is addressed in several other ways.Ohio\u27s General Assembly would be well advised, as described in the prior section, to repeal or revise Ohio Revised Code § 2317.02(A)(1) so as to clearly disavow a rule that the mere act of a client giving voluntary testimony waives the attorney-client privilege

Enhancement of the ferromagnetic order of graphite after sulphuric acid treatment

We have studied the changes in the ferromagnetic behavior of graphite powder and graphite flakes after treatment with diluted sulphuric acid. We show that this kind of acid treatment enhances substantially the ferromagnetic magnetization of virgin graphite micrometer size powder as well as in graphite flakes. The anisotropic magnetoresistance (AMR) amplitude at 300 K measured in a micrometer size thin graphite flake after acid treatment reaches values comparable to polycrystalline cobalt.Comment: 3.2 pages, 4 figure

Model for the hydration of non-polar compounds and polymers

We introduce an exactly solvable statistical-mechanical model of the hydration of non-polar compounds, based on grouping water molecules in clusters where hydrogen bonds and isotropic interactions occur; interactions between clusters are neglected. Analytical results show that an effective strengthening of hydrogen bonds in the presence of the solute, together with a geometric reorganization of water molecules, are enough to yield hydrophobic behavior. We extend our model to describe a non-polar homopolymer in aqueous solution, obtaining a clear evidence of both ``cold'' and ``warm'' swelling transitions. This suggests that our model could be relevant to describe some features of protein folding.Comment: REVTeX, 6 pages, 3 figure

Hastings' additivity counterexample via Dvoretzky's theorem

The goal of this note is to show that Hastings' counterexample to the additivity of minimal output von Neumann entropy can be readily deduced from a sharp version of Dvoretzky's theorem on almost spherical sections of convex bodies.Comment: 12 pages; v.2: added references, Appendix A expanded to make the paper essentially self-containe