Operation Boulder and its Effects on Arab-American Communities of the 1970\u27s

Operation Boulder, a United States government surveillance program deployed in 1972 under the direction of then-President Richard M. Nixon, launched a large-scale federal investigation of both Arab immigrants to the U.S. and Arab-Americans.1 In this context, the term “Arab” is used to mean a person originating from an Arabic-speaking country in the Middle East or North Africa, while “Arab-American” refers to a person of Arab lineage who was born in the United States. For the purposes of this paper, the Arabs and Arab-Americans referred to are only those residing in the United States. Before the project was canceled due to its overuse of resources, Operation Boulder led to the investigation of 150,000 Arabs.2 During the operation, government agents employed invasive and discriminatory tactics in their investigations of Arab immigrants and Arab-Americans. Further, a combination of historical evidence and contemporary analysis indicates that these federal investigations intended to suppress and divide Arab communities. However, though the U.S. government was able to dampen community activity initially, their surveillance tactics ultimately resulted in mobilization and cooperation within the Arab community in the U.S., resulting in a strengthened ethnic and cultural identity

Thucydides on Strength and Justice in the Melian and Mytilenian Debates

Thucydides’History of the Peloponnesian War provides incisive historical analysis of the 5th-century BC clash between the Athenian and Spartan alliances. Through his depiction of the Mytilenian debate and the Melian dialogue, Thucydides analyzes prioritization of self-interest, and more specifically, the idea that might makes right. Thucydides’ discussion of these topics indicates that he largely disagrees with the positions taken by the Athenians in these debates

Metabolomics Reveals the Molecular Mechanisms of Copper Induced Cucumber Leaf ( Cucumis sativus) Senescence.

Excess copper may disturb plant photosynthesis and induce leaf senescence. The underlying toxicity mechanism is not well understood. Here, 3-week-old cucumber plants were foliar exposed to different copper concentrations (10, 100, and 500 mg/L) for a final dose of 0.21, 2.1, and 10 mg/plant, using CuSO4 as the Cu ion source for 7 days, three times per day. Metabolomics quantified 149 primary and 79 secondary metabolites. A number of intermediates of the tricarboxylic acid (TCA) cycle were significantly down-regulated 1.4-2.4 fold, indicating a perturbed carbohydrate metabolism. Ascorbate and aldarate metabolism and shikimate-phenylpropanoid biosynthesis (antioxidant and defense related pathways) were perturbed by excess copper. These metabolic responses occur even at the lowest copper dose considered although no phenotype changes were observed at this dose. High copper dose resulted in a 2-fold increase in phytol, a degradation product of chlorophyll. Polyphenol metabolomics revealed that some flavonoids were down-regulated, while the nonflavonoid 4-hydroxycinnamic acid and trans-2-hydroxycinnamic acid were significantly up-regulated 4- and 26-fold compared to the control. This study enhances current understanding of copper toxicity to plants and demonstrates that metabolomics profiling provides a more comprehensive view of plant responses to stressors, which can be applied to other plant species and contaminants

Metabolomics Reveals the Molecular Mechanisms of Copper Induced Cucumber Leaf ( Cucumis sativus) Senescence.

Excess copper may disturb plant photosynthesis and induce leaf senescence. The underlying toxicity mechanism is not well understood. Here, 3-week-old cucumber plants were foliar exposed to different copper concentrations (10, 100, and 500 mg/L) for a final dose of 0.21, 2.1, and 10 mg/plant, using CuSO4 as the Cu ion source for 7 days, three times per day. Metabolomics quantified 149 primary and 79 secondary metabolites. A number of intermediates of the tricarboxylic acid (TCA) cycle were significantly down-regulated 1.4-2.4 fold, indicating a perturbed carbohydrate metabolism. Ascorbate and aldarate metabolism and shikimate-phenylpropanoid biosynthesis (antioxidant and defense related pathways) were perturbed by excess copper. These metabolic responses occur even at the lowest copper dose considered although no phenotype changes were observed at this dose. High copper dose resulted in a 2-fold increase in phytol, a degradation product of chlorophyll. Polyphenol metabolomics revealed that some flavonoids were down-regulated, while the nonflavonoid 4-hydroxycinnamic acid and trans-2-hydroxycinnamic acid were significantly up-regulated 4- and 26-fold compared to the control. This study enhances current understanding of copper toxicity to plants and demonstrates that metabolomics profiling provides a more comprehensive view of plant responses to stressors, which can be applied to other plant species and contaminants