The Hard Way Home

A lifelong Alaskan, Steve Kahn moved at the age of nine from the “metropolis” of Anchorage to the foothills of the Chugach Mountains. A childhood of berry picking, fishing, and hunting led to a life as a big-game guide. When he wasn’t guiding in the spring and fall, he worked as a commercial fisherman and earned his pilot’s license, pursuits that took him to the far reaches of the Alaskan wilderness. He lived through some of the most important moments of the state’s history: the 1964 earthquake (the most powerful in U.S. history), the Farewell Burn wildfire, the last king crab season in Kodiak Island waters, the Exxon Valdez oil spill and cleanup, even the far-reaching effects of the 9/11 attacks. The landscape of the essays in The Hard Way Home extends from the tip of Admiralty Island in the southeast to the Teocalli Mountains of the interior, from the windswept Alaska Peninsula to the author’s present home on Lake Clark. These essays offer a view of Alaska that is at once introspective and adventurous. Here we find the state’s plants, animals, people, geography, politics, and culture considered from an intimate perspective, leading to hard-earned lessons about conservation, sustainability, and living well. Ever the irrepressible guide, Kahn invites readers to share his experiences and discoveries and to consider questions about a place, and a life, that are disappearing

The Visual Display of Temporal Information

The detection of temporal relationships among time-ordered patient data is an important, but difficult, clinical task. Large volumes of computer-stored clinical data offer the possibility of aiding in the early detection of subtle trends and states, but the presence of irrelevant data can obscure relevant findings and relationships. We present a formal system for representing complex temporal data as events on an abstract entity called a time limit. We define five time line operations, SLICE, FILTER, OVERLAY, NEW, and ADD. For each operation, we precisely define the operator\u27s effect on a time line, including exceptions and boundary conditions. IN addition to our time line, formalism, we describe an interactive environment designed specifically to help humans visualize temporal data. We have developed a database kernel and a graphical user interface that uses our time line formalism and operations to support temporal manipulations. Using our formal system and our visualization environment, we describe two issues in the display and manipulating of temporal data: (1) the temporal granularity problem, and (2) the calendar mapping problem

Zunterstein, Alfred and Eva oral history interview

Copyright Steve Hochstadt. This transcript is provided for individual Research Purposes Only; for all other uses, including publication, reproduction and quotation beyond fair use, permission must be obtained in writing from: Steve Hochstadt, c/o The Edmund S. Muskie Archives and Special Collections Library, Bates College, 70 Campus Avenue, Lewiston, Maine 04240-6018

A psychoanalytic study of the theme of the double in some works of Dickens

"Chronology of publication dates of Dickens works" : leaves 166-168

Revisiting the Link between Political and Financial Crises in Africa

There is an important information deficit on political and financial risks in Africa. This paper fills this gap by compiling a unique database of financial (sovereign, banking, currency, expropriation) and political crises (regime changes, ethnic and revolutionary wars, genocides, armed conflicts) covering 53 African countries between 1965 and 2008. We employ a new methodological framework to disentangle cross-crisis from temporal contagion effects. This allows us to extend to Africa a number of insights from the literature on financial crises (e.g., the mutual contagion effects between banking and currency meltdowns). Importantly, and critically for a study devoted to Africa, political upheavals are of modest relevance to predict financial crises. These results may be reconciled with previous literature given our original focus on Africa and our event-based approach of financial and political risks

Hubble Space Telescope observations of Mars

Hubble Space Telescope (HST) afforded the possibility of resolving features as small as 100 km on the Martian surface even when it is at the far point of its orbit. Therefore it is ideally suited for monitoring seasonal changes on the red planet. The objectives research include: the study of Martian dust storms; use of images obtained through different filters to study the spectral reflectance of regions on the Martian surface; use of ultraviolet images and spectra to measure the amount of ozone in the planet's atmosphere as a function of location of the planet; use of images to study changes in the albedo of the Mars surface; and use of Planetary Camera images to study Martian clouds and to measure the opacity of the atmosphere

A Psychophysical Comparison of Two Methods for Adaptive Histogram Equalization

Adaptive histogram equalization (ahe) is a method for adaptive contrast enhancement of digital images propped by Pizer et. Al.. It has the properties that it is an automatic, reproducible method for the simultaneous viewing of contrast within a digital image with a large dynamic range. Recent experiments have show that in specific cases, there is no significant difference in the ability of ahe and linear intensity windowing to display grey-scale contrast. More recently, Pizer et al. have proposed a variant of ahe which limits the allowed contrast enhancement of the image. The contrast-limited adaptive histogram equalization (clahe) produces images in which the noise content of an image is nor excessively enhanced, but in which sufficient contrast is provided for the visualization of structures within the image. Images processed with clahe have a more natural appearance and facilitate the comparison of different areas of an image. However, the reduced contrast enhancement of clahe may hinder the ability of an observer to detect the presence of some significant grey-scale contrast. In this work, a psychophysical observer experiment was performed to determine if there is a significant difference in the ability of ahe and clahe to depict grey-scale contrast. Observers were presented with CT images of the chest processed with ahe and clahe into some of which subtle artificial lesions were introduced. The observers were asked to rate their confidence regarding the presence of the lesions; this rating-scale data was analyzed using Receiver Operating Characteristic curving techniques. These ROC curves were compared for significant differences in the observers\u27 performances. In this study, no difference was found in the abilities of ahe and clahe to depict contrast information

Revisiting the Link between Political and Financial Crises in Africa

There is an important information deficit on political and financial risks in Africa. This paper fills this gap by compiling a unique database of financial (sovereign, banking, currency, expropriation) and political crises (regime changes, ethnic and revolutionary wars, genocides, armed conflicts) covering 53 African countries between 1965 and 2008. We employ a new methodological framework to disentangle cross-crisis from temporal contagion effects. This allows us to extend to Africa a number of insights from the literature on financial crises (e.g., the mutual contagion effects between banking and currency meltdowns). Importantly, and critically for a study devoted to Africa, political upheavals are of modest relevance to predict financial crises. These results may be reconciled with previous literature given our original focus on Africa and our event-based approach of financial and political risks