Thesis (Ph. D.)--Ohio State University, 1973. / Includes bibliographical references (leaves 230-238). Available online via OhioLINK's ETD Center.

Debris flows, which occur in mountain settings worldwide, have been particularly damaging in the glaciated basins flanking the stratovolcanoes in the Cascade Range of the northwestern United States. This thesis contains two manuscripts that respectively investigate the (1) initiation processes of debris flows in these glaciated catchments, and (2) debris flow occurrence and its effect on valley bottoms over the last thousand years. In a 2006 storm, seven debris flows initiated from proglacial gullies of separate basins on the flanks of Mount Rainier. Gully heads at glacier termini and distributed collapse of gully walls imply that clear water was transformed to debris flow through progressive addition of sediment along gully lengths. In the first study, we analyze gully changes, reconstruct runoff conditions, and assess spatial distributions of debris flows to infer the processes and conditions necessary for debris flow initiation in glaciated catchments. Gully measurements suggest that sediment bulking requires steep gradients, abundant unstable material, and sufficient gully length. Reconstruction of runoff generated during the storm suggests that glaciers are important for generating the runoff necessary for debris flow initiation, particularly because infiltration capacities on glacial till covered surfaces well exceed measured rainfall rates. Runoff generation from glaciers and abundant loose debris at their termini explain why all debris flows in the storm initiated from proglacial areas. Proglacial areas that produced debris flows have steeper drainage networks with significantly higher elevations and lower drainage areas, suggesting that debris flows are associated with high elevation glaciers with relatively steep proglacial areas. This correlation reflects positive slope-elevation trends for the Mount Rainier volcano. An indirect effect of glacier change is thus the change in the distribution of ice-free slopes, which influence a basin’s debris flow potential. These findings have implications for projections of debris flow activity in basins experiencing glacier change. The second study uses a variety of dating techniques to reconstruct a chronology of debris flows in the Kautz Creek valley on the southwest flank of Mount Rainier (Washington). Dendrochronologic dating of growth disturbances combined with lichenometric techniques constrained five debris flow ages from 1712 to 1915 AD. We also estimated ages of three debris flows ranging in age from ca. 970 to 1661. Run-out distances served as a proxy for debris flow magnitude, and indicate that at least 11, 2, and 1 debris flow(s) have traveled at least 1, 3, and 5 km from the valley head, respectively since ca. 1650. Valley form reflects the frequency-magnitude relationship indicated by the chronology. In the upper, relatively steep valley, discrete debris flow snouts and secondary channels are abundant, suggesting a process of debris flow conveyance, channel plugging, and channel avulsion. The lower valley is characterized by relatively smooth surfaces, an absence of bouldery debris flow snouts, few secondary channels, and relatively old surface ages inferred from the presence of tephra layers. We infer that the lower valley is deposited on by relatively infrequent, large magnitude, low-yield strength debris flows like an event in 1947, which deposited wide, tabular lobes of debris outside of the main channel. Debris flows during the Little Ice Age (LIA) predominantly traveled no further than the upper valley. Stratigraphic evidence suggests that the main Kautz Creek channel was filled during the LIA, enhancing debris flow deposition on the valley surface and perhaps reducing run-out lengths. Diminished areas and gradients in front of glaciers during the LIA also likely contributed to decreased run-out lengths. These findings suggest that changes in debris flow source and depositional zones resulting from temperature and glacier cycles influence the magnitude and run-out distances of debris flows, and the dynamics of deposition in valley bottoms. / Graduation date: 2013

Understanding the transport and retention of radionuclides in the environment is important for protecting freshwater supplies and minimizing impact to biologic systems. Technetium-99 (Tc⁹⁹) is a radionuclide of interest due to its long half-life (2.13 x 10⁵ years) and toxicity. In the form of pertechnetate (TcO₄⁻), Tc is expected to move nearly unretarded in the subsurface. Under reducing conditions Tc can precipitate in low solubility Tc oxide (TcO₂·nH₂O) and/or Tc sulfide (Tc₂S[subscript x]) phases. The studies presented in this dissertation investigate the physiochemical mechanisms for the transport and retention of Tc. Transport studies determined that TcO₄⁻ would move at pore water velocity in unsaturated sediments. Geochemical studies of contaminated sediments determined that nearly ~ 25 % of the total Tc was retained in phases associated with iron oxide and aluminosilicate minerals, thus reducing the mobility of Tc. Studies of Tc₂S[subscript x] mineral phases, generated using nano Zero Valent Iron (nZVI) and sulfide (HS-) in sediments, determined that Tc could be stabilized in mineral phases as Tc₂S[subscript x] that were slower to reoxidize than TcO₂·nH₂O phases. / Graduation date: 2013 / Access restricted to the OSU Community at author's request from Feb. 14, 2013 - Feb. 14, 2014

The development of the specialty coffee industry in the United States occurred in the latter half of the twentieth century not as an independent phenomenon but rather as a result of a series of interrelated movements that began to coalesce in the late 1960s. Direct Trade, the latest development in gourmet coffee sourcing and marketing, is an amalgam of elements of an American food revolution that gained national prominence in the 1970s, the environmental movement, and movements for social justice through conscious consumption. Direct Trade coffee is differentiated in particular by roasters' rejection of the notion of coffee as a commodity in favor of recognition that coffee is a seasonal fresh produce subject to discernible differences in quality. This thesis examines Direct Trade’s popularity in Olympia, Washington, a suburban cultural center located midway between Seattle and Portland along the I-5 corridor. It seeks to explain why and how residents of the Pacific Northwest, long distinguished for their pioneering spirit, adopted Direct Trade coffee from an early stage.

The Asian Crash of 1997 gave final closure to the era of Cold War geoeconomics. For decades American liberal capitalism had maintained an oddly symbiotic relationship with East Asia¡¦s far more centrist economies. The end of the Cold War, however, opened the door for full-thrust globalization on Washington¡¦s terms. At first, foreign investment and money market speculation stoked what looked like a new super-miracle on the Pacific Rim. Few took serious notice of how the lending binge of the mid-1990s recklessly expanded foreign debt relative to reserves. When the bubble broke in 1997, massive capital exodus sent the region into a ruinous plunge. The IMF took its time in responding, and finally applied a dubious rescue formula that helped to turn the Crash into a protracted Crisis. Taking the Crisis as a window on the politics of globalization, this study builds on the development theory of Amartya Sen. It follows from Sen¡¦s axiom of ¡§development as freedom¡¨ that just and sustainable development is best achieved where economic and political priorities are balanced in what I term the ¡§concurrence¡¨ approach to development. From this vantage the post-Crisis condition of the Rim was hardly more conducive to political development than was the pre-Crisis situation, for poverty can be as much a developmental roadblock as authoritarianism is. Neoliberal globalism could no longer hide behind the democratic veneer of ¡§third wave¡¨ or ¡§end of history¡¨ determinism. By the mid-1990s the specter of cultural anarchy already haunted much of the developing world outside the Rim, and the Crash threatened to expunge that crucial exception. Nor was this just a Third World dilemma. The socioeconomic efficacy of the whole capitalist system was on trial. In Sen¡¦s view, the Asian Crisis spotlighted the high cost of undemocratic governance. Asian exceptionalists held that Western liberal democracy was not needed in this high-growth sphere, and indeed would be a hindrance. Sen argues, however, that the cultivation of freedom, as both an end and means, is not just a Western imperative. Indeed, his expansive view of social well-being is rooted in Asian values. In lieu of the statist economism that was falsely identified as Asian values during the ¡§miracle¡¨ years, Sen proposes an ¡§Eastern strategy¡¨ that draws on the more humane dimensions of Asian development. He credits state interventions such as public education and land reform as major contributions not only to the ¡§Asian miracle¡¨ but to all sustainable development. Much more is involved in the Senian model than the slightly modified economism that has appropriated the ¡§Third Way¡¨ label. This study draws positive and negative cases in point from the development records of the Philippines, Indonesia and South Korea. While all three countries were hard hit by the Crash and the subsequent Crisis, each reacted in its own way. What they had in common, however, was the undertow effect of neoliberal globalization, whereby foreign capital and policy constraints eroded their effective autonomy. Unfortunately, Sen¡¦s attention to the glaring inequalities of global capitalism is not matched by much attention to the transnational corporations (TNCs) that dominate the global economy. Likewise he has tended to neglect crucial postmaterial issues such as cultural and environmental sustainability. Useful as his informational strategies are for averting social catastrophies such as famine, he fails to adequately contest the political, cultural, and environmental inroads of globalization. For that it is necessary to move beyond the pallid globalism of Sen¡¦s own politics. The paradoxical task of this study, therefore, is to free the Senian model from Sen himself.

Thesis (master's)--United States Marine Corps Command and Staff College, 2002. Thesis--George Washington, as Commander-in-Chief of the Continental Army led this nation to victory and independence in the American War for Independence. Victory was facilitated by his direct and effective use of intelligence sources and methods. Discussion: During the American War for Independence, intelligence information regarding location, movement, and disposition of British forces allowed the Continental Army to fight on its own terms and stymie British efforts to quell the revolution. General George Washington, as Commanding General of the Continental Army, was aware of the value of intelligence in the proper conduct of military operations. Washington literally became America's first director of military intelligence. He directed the intelligence operations that were conducted, and performed his own analysis. The Continental Army's effectiveness in intelligence includes examples of the proper use of espionage, counterintelligence, communications security, codebreaking, deception, operational security, surveillance, reconnaissance, reporting and analysis. Time after time, the Americans were properly prepared with good intelligence ultimately resulting in independence from the British. These intelligence successes can be directly attributed to the direction of General George Washington and the actions of his operatives. / Mentor(s): John B. Matthews, David A. Kelley. Includes bibliographical references (p. 52-54). Also available online.

Thesis (Ph. D.)--University of Washington, 2003. / Vita. Includes bibliographical references (leaves 192-202).

Booker T. Washington organized the National Negro Business League (NNBL) in 1900, and it became the largest and most influential black business organization for much of the twentieth century. Enterprising black men and women in the NNBL linked their entrepreneurial activities to a modern, progressive social and political agenda. They relied on discourses of race, nation, and business that were both modern, radical, and progressive and traditional, conservative, and reactionary. The thesis moves beyond prosaic debates about the efficacy of black business and black economic nationalism to consider how black entrepreneurs in the NNBL interacted with the material and cultural dimensions of the political economy. A disconnect often existed between the grand ambitions of the executive leadership and the intrigues of the local league membership. Race and entrepreneurship drew attention to lapses in the rhetoric of progress and change in the New South. Finally, it looks at interracial cooperation and conflict in the NNBL. By privileging blacks' struggles for liberation, the thesis enhances understanding about the many ways blacks struggled to strike a tenable balance between personal agency and structural constraints. / text

This study uses multiple isotopic (2H, 18O, 13C, 15NNO3, 18ONO3, 87Sr/86Sr) and age tracers (3H, 14C, CFCs), in conjunction with elemental chemistry, to address the following research question: How have present day anthropogenic activities (i.e. surface water irrigation and fertilizer application) and past climatic events (i.e. cataclysmic flooding from glacial Lake Missoula and other modes of discharge from Cordilleran Ice Sheet) impacted the hydrology and geochemistry of the Columbia River Basalt Aquifers (CRBAs) in central Washington? Large-scale irrigated agriculture over the past ~60 years has resulted in the transport of high NO3- irrigation waters moving downward in the oxic CRBAs at rates of several meters per decade with a lack of denitrification. Deeper pristine regional groundwater in the CRBAs is Late Pleistocene in age and likely remnant Cordilleran Ice Sheet-related recharge waters (i.e. glacial Lake Missoula floodwaters).

There is no abstract available for this dissertation.