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ScholarsArchive at Oregon State University
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For an undirected n-vertex planar graph G with non-negative edge-weights, we consider the
following type of query: given two vertices s and t in G, what is the weight of a min st-cut in G?
We show how to answer such queries in constant time with...
2015-01 (iso8601)
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We give a randomized O(n polylog n)-time approximation scheme for the Steiner forest problem in the Euclidean plane. For every fixed ε > 0 and given n terminals in the plane with connection requests between some pairs of terminals, our scheme...
2015-01 (iso8601)
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A mid-20th century prisoners' rights revolution gave American prisoners unprecedented access to courts for exercising newly elaborated constitutional rights. The result was a tide of litigation brought by inmates and subsequent remedial court...
2015-07-09 (iso8601)
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Cell death is a process of dying within biological cells that are ceasing to function. This process is essential in regulating
organism development, tissue homeostasis, and to eliminate cells in the body that are irreparably damaged. In general,...
2015-06 (iso8601)
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The aim of this work is to review current knowledge relating the established cancer hallmark, sustained cell proliferation
to the existence of chemicals present as low dose mixtures in the environment. Normal cell proliferation is under tight...
2015-06 (iso8601)
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Genome instability is a prerequisite for the development of cancer. It occurs when genome maintenance systems fail to
safeguard the genome’s integrity, whether as a consequence of inherited defects or induced via exposure to environmental
agents...
2015-06 (iso8601)
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Sub-Saharan Africa (SSA) experiences soil degradation, food and livelihood insecurity, environmental pollution and lack of access to energy. Biochar has gained international research attention, but few studies have investigated the potential of...
2015-03-01 (iso8601)
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A new species of Dryophthorus (Coleoptera:Dryophthoridae) and two new species of Stenommatus (Coleoptera:Dryophthoridae) are described from Dominican amber. D. microtremus n. sp. is characterized by monochrome dorsal scales, nearly parallel sides...
2015-07-04 (iso8601)
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The following new genus and seven new species of Cossonine weevils (Curculionidae: Cossoninae) are described from Dominican amber: Acamptus exilipes Poinar and Legalov, n. sp.,(similar to A. rigidus), Caulophilus camptus Poinar and Legalov, n....
2015-07-04 (iso8601)
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Amber preserves microscopic, soft-bodies organisms and is a good medium in which to trace the evolution of pathogen-vector associations. Spirochetes-like cells (Spirochaetales: Spirochaetaceae) in the hemocoel and lumen of the alimentary tract of...
2015-07-04 (iso8601)
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Cell death is a process of dying within biological cells that are ceasing to function. This process is essential in regulating
organism development, tissue homeostasis, and to eliminate cells in the body that are irreparably damaged. In general,...
2015-06 (iso8601)
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An increasing number of studies suggest an important role of host immunity as a barrier to tumor formation and progression. Complex mechanisms and multiple pathways are involved in evading innate and adaptive immune responses, with a broad...
2015-06 (iso8601)
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The purpose of this review is to stimulate new ideas regarding low-dose environmental mixtures and carcinogens and their
potential to promote invasion and metastasis. Whereas a number of chapters in this review are devoted to the role of lowdose...
2015-06 (iso8601)
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Potentially carcinogenic compounds may cause cancer through direct DNA damage or through indirect cellular or
physiological effects. To study possible carcinogens, the fields of endocrinology, genetics, epigenetics, medicine,
environmental health,...
2015-06 (iso8601)
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One of the important ‘hallmarks’ of cancer is angiogenesis, which is the process of formation of new blood vessels that
are necessary for tumor expansion, invasion and metastasis. Under normal physiological conditions, angiogenesis is well...
2015-06 (iso8601)
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Environmental contributions to cancer development are widely accepted, but only a fraction of all pertinent exposures
have probably been identified. Traditional toxicological approaches to the problem have largely focused on the effects of...
2015-06 (iso8601)
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An emerging area in environmental toxicology is the role that chemicals and chemical mixtures have on the cells of the human immune system. This is an important area of research that has been most widely pursued in relation to autoimmune diseases...
2015-06 (iso8601)
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Lifestyle factors are responsible for a considerable portion of cancer incidence worldwide, but credible estimates from the
World Health Organization and the International Agency for Research on Cancer (IARC) suggest that the fraction of cancers...
2015-06 (iso8601)
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The extant forest sector strategy research rests on Porter’s classic dictum that successful firms pursue a singular strategy. A growing research stream on organizational ambidexterity, however, challenges this traditional view and recommends the...
2015-05 (iso8601)
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Understanding responses of marine species to temperature variability is essential
to predict impacts of future climate change in the oceans. Most ectotherms are
expected to adjust their behavior to avoid extreme temperatures and minimize
acute...
2015-05 (iso8601)
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