Reading Ollantay: The Negotiation of Communication in Colonial Quechua Theater

The Quechua theatrical work Ollantay (discovered in the 18th century) provides a vital opportunity to observe how the colonial Quechua peoples contextualized the importance of communication. My reading of Ollantay focuses on the negotiation of communication between characters as a didactic means of social interaction for indigenous peoples living in colonial Latin America. The act of communication is prioritized over the actual message communicated between characters; it is clear that those that abide by this communicative equation find themselves in positions of either power or accomplishment and those that ignore this rule do not. In order to sustain a hierarchal position it is not necessary to maintain absolute control over communicative expression; rather it is imperative to cede control of the conversation at times to other characters. Reading Ollantay from this perspective–as a social model of negotiated communication–may provide the reader a better understanding of indigenous thought processes during the colonial period in Latin America

Comparing Salinities of 10, 20, and 30% in Intensive, Commercial-Scale Biofloc Shrimp (\u3ci\u3eLitopenaeus vannamei\u3c/i\u3e) Production Systems

Minimal-exchange, intensive biofloc aquaculture systems offer a viable means of culturing marine animals at inland locations due to very low rates of water use. Fresh, never-frozen shrimp can be provided to metropolitan markets; however, the cost of artificial salt can be substantial. The purpose of this project was to examine commercial-scale biofloc shrimp production at three different salinities. Nine raceways were randomly assigned to three salinity treatments: 10, 20, and 30‰ (LS, MS, and HS), each treatment contained three raceways operated at 50 m3. The raceways were operated as heterotrophic biofloc systems, with daily additions of sucrose to raise the C:N ratio. Temperature, dissolved oxygen, pH, and salinity were all maintained at consistent levels. Spikes of ammonia and nitrite occurred in all tanks but nitrate remained low, with a peak value of 8.7 mg NO3-N L− 1. There were no significant differences in any shrimp production metric. Mean shrimp growth rate was 1.8, 2.0, and 2.0 g week− 1 in the LS, MS, and HS treatments respectively. Mean feed conversion rate was 1.6, 1.2, and 1.2 in the LS, MS, and HS treatments respectively, and mean final weight ranged from 17.8 to 19.3 g. The only time water was removed from the systems was when settling chambers were emptied, resulting in a total mean water replacement of 5.2% or less per raceway. The mean volume of full strength seawater used to produce shrimp was 104, 159, and 235 L kg− 1 of shrimp in the LS, MS, and HS treatments respectively. Although there were no significant differences in shrimp production metrics between treatments, these values were noticeably lower in the LS treatment due to human error. Operating at the low salinity of 10‰ reduces salt use by about 50% over the MS treatment which implies substantial cost savings for production facilities. This study helps to illustrate the range of salinity options for shrimp production in commercial-scale biofloc systems

Beyond Downton Abbey: Remembering the Great War’s Fallen through Education and Marketing

This paper explores the expanding marketing and education mission of the American Battle Monuments Commission (ABMC). Superintendents at overseas cemeteries and battle sites must continue their job of “keeping the headstones white and the grass green” but also must market specific events such as the 70th anniversary of D-Day at the Normandy location and an upcoming 100th anniversary of the end of the Great War in 2018. Part of the effort is passing the memory on to the next generation via materials relevant to young people today. U.S. history teachers who received ABMC grants to travel to Meuse-Argonne in France (the resting place of the most U.S. fallen of any overseas cemetery) to prepare materials to teach World War I served as one of two samples for empirical data. Another sample was drawn from battlefield tourists who visited the Normandy World War II beaches on the 70th anniversary of D-Day. Results show “maintaining the memory”, “telling others,” and “simple connection to values/heritage” are key phrases chosen by the respondents on a battlefield tourism survey. From both groups, “I feel proud to visit” was important. “Pilgrimage” is more relevant for the older D-Day group than the young teachers, but both groups indicated that direct interaction with the veterans who were there (Canadian D-Day vets, or in the case of World War I, the teachers spent time with children of WWI soldiers) were major highlights of the trip. Future research will investigate whether these themes are still important motivators once the era of anniversaries is over

Tentative Evidence for Relativistic Electrons Generated by the Jet of the Young Sun-like Star DG Tau

Synchrotron emission has recently been detected in the jet of a massive protostar, providing further evidence that certain jet formation characteristics for young stars are similar to those found for highly relativistic jets from AGN. We present data at 325 and 610 MHz taken with the GMRT of the young, low-mass star DG Tau, an analog of the Sun soon after its birth. This is the first investigation of a low-mass YSO at at such low frequencies. We detect emission with a synchrotron spectral index in the proximity of the DG Tau jet and interpret this emission as a prominent bow shock associated with this outflow. This result provides tentative evidence for the acceleration of particles to relativistic energies due to the shock impact of this otherwise very low-power jet against the ambient medium. We calculate the equipartition magnetic field strength (0.11 mG) and particle energy (4x10^40 erg), which are the minimum requirements to account for the synchrotron emission of the DG Tau bow shock. These results suggest the possibility of low energy cosmic rays being generated by young Sun-like stars.Comment: 19 pages, 2 figures, accepted for publication in ApJ Letter

Beyond Downton Abbey: Remembering the Great War\u27s Fallen Through Education and Marketing

This paper explores the expanding marketing and education mission of the American Battle Monuments Commission (AMBC). Superintendents at overseas cemeteries and battle sites must continue their job of “keeping the headstones white and the grass green” but also must market specific events such as the 70th anniversary of D-Day at the Normandy location and an upcoming 100th anniversary of the end of the Great War in 2018. Part if the effort is passing the memory on to the next generation via materials relevant to young people today. U.S. history teachers who received ABMC grants to travel to Meuse-Argonne in France (the resting place of the most U.S. fallen of any overseas cemetery) to prepare material to teach World War I served as one of two samples for empirical data. Another sample was drawn from battlefield tourists who visited the Normandy World War II beaches on the 70th Anniversary of D-Day. Results show “maintaining the memory”, “telling others,” and “simple connection to values/heritage” are key phrases chosen by the respondents on a battlefield tourism survey. From both groups, “I feel proud to visit” was important. “Pilgrimage” is more relevant for the older D-Day group than the younger teachers, but both groups indicated that direct interaction with the veterans who were there (Canadian D-Day vets, or in the case of World War I, the teachers spent time with children of WWI soldiers) were major highlights of the trip. Future research will investigate whether these themes are still important motivators once the era of anniversaries is over

Nutrient limitation of algae and macrophytes in streams: Integrating laboratory bioassays, field experiments, and field data

Successful eutrophication control strategies need to address the limiting nutrient. We conducted a battery of laboratory and in situ nutrient-limitation tests with waters collected from 9 streams in an agricultural region of the upper Snake River basin, Idaho, USA. Laboratory tests used the green alga Raphidocelis subcapitata, the macrophyte Lemna minor (duckweed) with native epiphytes, and in situ nutrient-limitation tests of periphyton were conducted with nutrient-diffusing substrates (NDS). In the duckweed/epiphyte test, P saturation occurred when concentrations reached about 100 μg/L. Chlorophyll a in epiphytic periphyton was stimulated at low P additions and by about 100 μg/L P, epiphytic periphyton chlorophyll a appeared to be P saturated. Both duckweed and epiphyte response patterns with total N were weaker but suggested a growth stimulation threshold for duckweed when total N concentrations exceeded about 300 μg/L and approached saturation at the highest N concentration tested, 1300 μg/L. Nutrient uptake by epiphytes and macrophytes removed up to 70 and 90% of the N and P, respectively. The green algae and the NDS nutrient-limitation test results were mostly congruent; N and P co-limitation was the most frequent result for both test series. Across all tests, when N:P molar ratios \u3e30 (mass ratios \u3e14), algae or macrophyte growth was P limited; N limitation was observed at N:P molar ratios up to 23 (mass ratios up to 10). A comparison of ambient periphyton chlorophyll a concentrations with chlorophyll a accrued on control artificial substrates in N-limited streams, suggests that total N concentrations associated with a periphyton chlorophyll a benchmark for desirable or undesirable conditions for recreation would be about 600 to 1000 μg/L total N, respectively. For P-limited streams, the corresponding benchmark concentrations were about 50 to 90 μg/L total P, respectively. Our approach of integrating controlled experiments and matched biomonitoring field surveys was cost effective and more informative than either approach alone

La naturaleza en la literatura costarricense pensada desde la eco-culturalidad

Though the topic of the environment in Costa Rican literature is relatively recent, it is by no means insubstantial. In fact, this particular theme is extremely pertinent in our current days of global warming, mass pollution, fracking, and oil spills, to name just a few issues directly relating to the environment. Therefore, as a hotbed of eco-tourism and environmental awareness, Costa Rica’s literature is a prime candidate for exploring the representation of nature, not as the result of a process of progress and modernization, but rather as a grave warning of the negative ecological effects of the coloniality of nature. Despite advances in theories concerning environmental conservation within contemporary literary studies, there are still other possible readings and perspectives to think outside of the epistemic framework that is guided by development and modernization projects typical of the colonial system. Traditionally, mainstream social groups throughout the western world have perceived and portrayed nature as a resource to preserve for the benefit of humans. In effect, nature is seen from an anthropocentric viewpoint. The exclusion of subalternized communities, especially those in bio-diverse areas, makes it clear that there is a hierarchy of power in which the local voices, whose knowledge of nature moves beyond coloniality, are silenced. This dissertation attempts to offer a critical reading of the works of five Costa Rican authors based on eco-culturality that recognizes that the literary representation of nature is complex, and both the explicit and implicit messages concerning this representation require an investigation that not only covers what the authors say about nature but also problematizes how they represent it in their narratives. Specifically, we examine La loca de Gandoca (1992) by Anacristina Rossi, Cuentos y relatos del Pacífico Sur (2008) by Manuel Aguilar Vargas (1923), Los cuentos de Jack Mantorra (1988) and Los cuentos del Hermano Araña (1991) by Quince Duncan, Cuentos de mi Tía Panchita (1920) by Carmen Lyra (1888-1949), and Historias cabécares (1989), told by Tolók Bótobö (1895-1908) and compiled by Severiano Fernández Torres and Valeria Varas

Jobseekers Regime and Flexible New Deal, the Six Month Offer and Support for the Newly Unemployed evaluations: An early process study

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