There's Nothing Natural About Natural Conversation: A Look at Dialogue in Fiction and Drama

While discussing some of the ideas presented in this paper, a colleague mentioned that after reading David Mamet's play Glengarry Glen Ross, he thought to himself that the dialogue in the play portrayed the way people really talk. I followed his comment by saying what makes The Great Gatsby such an excellent novel is the dialogue, especially the off-hand remarks that strike my ear as being real. Our remarks were not unusual in the least. Probably everyone reading this paper has experienced the same sort of conversation. Readers from a culture with a long literary tradition bring biases, ideas, and a great deal of information regarding texts to each text they encounter. They know what a literary work should be and should do. Knowledgeable readers can then judge conversation in a literary text to be "natural" or "unnatural," as my colleague and I had done. What we must consider, though, is that dialogue is only "natural" or "unnatural" within the literary mode or framework, what "natural" conversation in a literary work should be or what we presume it to be, and that even "natural" conversation bears little resemblance to everyday conversation (Bishop 1984:21)

Successful use of Onyx® for transcatheter arterial embolization of a scrotal arteriovenous malformation refractory to traditional embolic agents

AbstractA scrotal arteriovenous malformation (AVM) is a rare condition representing an abnormal connection between the arterial and venous systems of vessels supplying the scrotum. Scrotal AVMs are usually treated via transcatheter embolization, surgical extirpation, or a combination of the two approaches. A 41-year-old man developed a life-threatening hemorrhage from a scrotal AVM. After hemodynamic stability was attained, multiple transcatheter embolization procedures were performed (over the course of several months) to eliminate blood flow through the AVM. Traditional embolic agents including microcoils, Embospheres®, and Gelfoam® were used, with only temporary reduction of blood flow through the AVM. Onyx®, a liquid embolic agent, was used successfully as an adjunct treatment to achieve blood flow cessation. Onyx® demonstrates efficacy in the treatment of scrotal AVMs, and is a viable alternative to traditional embolic agents

Phylogenetic Analysis of Algal Symbionts Associated with Four North American Amphibian Egg Masses

Egg masses of the yellow-spotted salamander Ambystoma maculatum form an association with the green alga “Oophila amblystomatis” (Lambert ex Wille), which, in addition to growing within individual egg capsules, has recently been reported to invade embryonic tissues and cells. The binomial O. amblystomatis refers to the algae that occur in A. maculatum egg capsules, but it is unknown whether this population of symbionts constitutes one or several different algal taxa. Moreover, it is unknown whether egg masses across the geographic range of A. maculatum, or other amphibians, associate with one or multiple algal taxa. To address these questions, we conducted a phylogeographic study of algae sampled from egg capsules of A. maculatum, its allopatric congener A. gracile, and two frogs: Lithobates sylvatica and L. aurora. All of these North American amphibians form associations with algae in their egg capsules. We sampled algae from egg capsules of these four amphibians from localities across North America, established representative algal cultures, and amplified and sequenced a region of 18S rDNA for phylogenetic analysis. Our combined analysis shows that symbiotic algae found in egg masses of four North American amphibians are closely related to each other, and form a well-supported clade that also contains three strains of free-living chlamydomonads. We designate this group as the ‘Oophila’ clade, within which the symbiotic algae are further divided into four distinct subclades. Phylogenies of the host amphibians and their algal symbionts are only partially congruent, suggesting that host-switching and co-speciation both play roles in their associations. We also established conditions for isolating and rearing algal symbionts from amphibian egg capsules, which should facilitate further study of these egg mass specialist algae

“Think Bigger About Science”: Using Twitter for Learning in the Middle Grades

This article examines the use of Twitter as a learning tool in a middle grades science classroom. Relevant research, the direct experience of the teacher leading this unique initiative, and the invaluable perspectives of his middle level students are included to inform interested stakeholders. Following a discussion of open versus closed digital environments, a rationale for why open forms of social media, like Twitter, can be appropriate for middle grades students is explored. The ways in which one author integrates Twitter into his teaching is then described before student outcomes are explained, including the voices and perspectives of students themselves. Finally, the challenges teachers might face in using Twitter with students are discussed and recommendations are offered for those considering integrating social media into their pedagogy

Technocrats of the Imagination

Technocrats of the Imagination traces the rise of collaborative art and technology labs in the U.S. from WWII to the present. Ryan Bishop and John Beck reveal the intertwined histories of the avant-garde art movement and the military-industrial complex, showing how radical pedagogical practices traveled from Germany’s Bauhaus movement to the U.S. art world and interacted with government-funded military research and development in university laboratories. During the 1960s both media labs and studio labs leaned heavily on methods of interdisciplinary collaboration and the power of American modernity to model new modes of social organization. In light of revived interest in Black Mountain College and other 1960s art and technology labs, this book draws important connections between the contemporary art world and the militarized lab model of research that has dominated the sciences since the 1950s

Motion Planning of Autonomous Vehicles on a Dual Carriageway without Speed Lanes

The problem of motion planning of an autonomous vehicle amidst other vehicles on a straight road is considered. Traffic in a number of countries is unorganized, where the vehicles do not move within predefined speed lanes. In this paper, we formulate a mechanism wherein an autonomous vehicle may travel on the “wrong” side in order to overtake a vehicle. Challenges include assessing a possible overtaking opportunity, cooperating with other vehicles, partial driving on the “wrong” side of the road and safely going to and returning from the “wrong” side. The experimental results presented show vehicles cooperating to accomplish overtaking manoeuvres

An Explorative Investigation of the Warm-up Practices of Professional and Amateur Rugby League Players

This study aimed to assess warm-up practices within professional and amateur Rugby League players, specifically to determine players’ perceptions why particular methods were used and discover whether any differences existed in warm-up practices and perceptions between the two separate standards. The study used a 10 question online questionnaire to investigate 30 professional and 53 amateur players warm-up protocols and their perceptions behind their practices. To provide a richer understanding regarding the practices and perceptions surrounding warm-up protocols, the questionnaire was followed by two focus groups (professionals and amateurs), which included four participants in each. Following analysis of the questionnaire responses, it was discovered that professional players warm-up protocols were significantly longer in duration than amateur players (P = 0.009). However, for all other variables assessed including; specific warm-up protocols, static stretch duration, and perceptions and beliefs concerning warm-up protocols, there were no significant differences between professionals and amateurs. Overall findings demonstrated the widespread use of static stretching within warm-up for both professionals and amateurs; 71 of 83 players (86%) reported usage. It was also highlighted that injury prevention was the most commonly perceived benefit from performing a warm-up across both standards [(Professional; 15 of 30, 50%) (Amateur; 27 of 53, 51%)]. Findings from the focus group generally supported questionnaire responses, and it was identified that the warm-up practices and protocols of Rugby League players were influenced by others such as coaches and strength and conditioning coaches which emphasises the importance of the role such practitioners

From legacy effects of acid deposition in boreal streams to future environmental threats

Few environmental issues have resulted in such a heated policy-science controversy in Sweden as the 1990s acidification debate in the north of the country. The belief that exceptionally high stream acidity levels during hydrological events was caused by anthropogenic deposition resulted in a governmentally funded, multi-million dollar surface-water liming program. This program was heavily criticized by a large part of the scientific community arguing that the acidity of northern streams was primarily caused by naturally occurring organic acids. Here, we revisit the acid deposition legacy in northern Sweden two decades after the culmination of the controversy by examining the long-term water chemistry trends in the Svartberget/Krycklan research catchment that became a nexus for the Swedish debate. In this reference stream, trends in acidic episodes do show a modest recovery that matches declines in acid deposition to pre-industrial levels, although stream acidity continues to be overwhelmingly driven by organic acidity. Yet there are legacies of acid deposition related to calcium losses from soils, which are more pronounced than anticipated. Finally, assessment of these trends are becoming increasingly complicated by new changes and threats to water resources that must be recognized to avoid unnecessary, expensive, and potentially counterproductive measures to adapt and mitigate human influences. Here we make the argument that while the acidification era is ending, climate change, land-use transitions, and long-range transport of other contaminants warrant close monitoring in the decades to come