Dragonflies (Odonata) of the Ouachita National Forest

The Ouachita National Forest (ONF) was established in 1907 and encompasses 1.8 million acres (728,450 ha) in Arkansas and Oklahoma, almost entirely within the Ouachita Mountains Natural Division. The adult dragonfly species richness, seasonal and spatial distribution, and relative abundance were surveyed during 2002. Fifty-four collections were made at 43 sites during 10-19 May (20 collections), 10-22 July (19 collections) and 9-17 September (15 collections). Literature records were searched, as well as records from pertinent museums and individuals. Eighty-three species are reported here for the ONF, 77 of which were collected during 2002. Nehallenia integricollis newly reported for Arkansas, as are several species for the six Arkansas and two Oklahoma counties that encompass the ONF. The species richness results from a diversity of aquatic habitats, particularly within the Caddo Ranger District. Plastic species (e.g. Plathemis lydia) typically are widely distributed and have long flight seasons. More specialized species (e.g. Ophiogomphus westfalli) often are quite restricted in both distribution and flight season. Maintenance of good water quality in all aquatic habitat types will ensure species richness for dragonflies and the invertebrates upon which they feed

Aquatic Macroinvertebrates Collected from Thirty-two Missouri Ozark Streams

A previously reported study of the distribution and status of an endemic dragonfly in Missouri emphasized data collected by aerial netting and examination of specimens housed in the Wilbur Enns Museum of Entomology. Dip net samples were also taken, however, to find naiads of the target species at sites where adults might not have been found and to determine whether there were associated species. Forty-one collections were made in 32 Ozark streams between mid-May and early June 1999-2000. Of the 372 taxa identified, Psephenus herricki was the most frequently associated species. Six of the 32 streams either had not been sampled previously or the results have not been published. Three species (Paragordius varius, Haliplus confluentus and Haliplus deceptus) are first reports for Missouri

MutY-Homolog (MYH) inhibition reduces pancreatic cancer cell growth and increases chemosensitivity

Patients with pancreatic ductal adenocarcinoma (PC) have a poor prognosis due to metastases and chemoresistance. PC is characterized by extensive fibrosis, which creates a hypoxic microenvironment, and leads to increased chemoresistance and intracellular oxidative stress. Thus, proteins that protect against oxidative stress are potential therapeutic targets for PC. A key protein that maintains genomic integrity against oxidative damage is MutY-Homolog (MYH). No prior studies have investigated the function of MYH in PC cells. Using siRNA, we showed that knockdown of MYH in PC cells 1) reduced PC cell proliferation and increased apoptosis; 2) further decreased PC cell growth in the presence of oxidative stress and chemotherapy agents (gemcitabine, paclitaxel and vincristine); 3) reduced PC cell metastatic potential; and 4) decreased PC tumor growth in a subcutaneous mouse model in vivo. The results from this study suggest MYH may be a novel therapeutic target for PC that could potentially improve patient outcome by reducing PC cell survival, increasing the efficacy of existing drugs and reducing metastatic spread

Flamingo Vol. IX N 6

McDonald, George. Cover. Picture. 0 Ohio State Sun Dial. Untitled. Prose. 1. Arizona Kittykat. Untitled. Prose. 1. Sour Owl. Untitled. Prose. 3. Dartmouth Jack O\u27Lantern. Untitled. Prose. 2. Brown Jug. Untitled. Prose. 3. Illinois Siren. Untitled. Prose. 3. Kitty-Kat. Untitled. Prose. 3. Ohio State Sun Dial. Untitled. Prose. 4. Wabash Caveman. Untitled. Prose. 4. Anonymous. Untitled. Prose. 4. McDonald, George. Untitled. Picture. 8. Anonymous. Flamingo Gripes and Groans . Prose. 9. Smrcina, Orville. Untitled. Picture. 10. Anonymous. A Little Vow For Leap Year . Prose. 10. Kline, I.D. Gwendolyn Strikes Out, or, Set \u27Em Up In The Other Alley . Prose. 10. Smrcina, Orville. Untitled. Picture. 11. Anonymous. Untitled. Prose. 11. Anonymous. Untitled. Prose. 12. Anonymous. Literal Young lady . Prose. 12. Anonymous. Four-Legged Cops . Prose. 12. Anonymous. Our Leap year Poem . Prose. 13. Anonymous. The Co-Ed Thorn . Prose. 13. Anonymous. Untitled. Prose. 13. McDonald, George. Untitled. Picture. 13. Anonymous. A Bird in the Hand is Worth About Ten on the Newsstand . Prose. 15. Anonymous. I Kidnapped And Murdered Her So I Could Go To College. Prose. 18. Smith, Reed. A Photo For The Visual Minded . Picture. 16. Anonymous. Untitled. Prose. 16. Anonymous. More Photos For The Visual-Minded . Prose. 16. Anonymous. Co-Eds Obtain long-Sought Privilege: A Clever Plot Unfolded . Prose. 16. Anonymous. Candy . Prose. 16. Anonymous. Introducing-Miss 1928 . Prose. 17. Jester. Untitled Prose. 18. Lord Jeff. Untitled Prose. 18. Whirlwind. Untitled Prose. 18. Sniper. Untitled Prose. 18. Purple Parrot. Untitled Prose. 18. Minnesota Ski-U-Mah. Untitled. Prose. 18. Siren. Untitled. Prose. 18. Mink. Untitled. Prose. 18. Gargoyle. Untitled. Prose. 18. Center Colonel. Untitled. Prose. 18. Sun Dial. Untitled. Prose. 18. Anonymous. It\u27s A-Rainin\u27 Tonight . Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. The Passionate Plumber, or, Is It Cold Enough Out to Wear a Cane? . Prose. 19. McDonald, George. Untitled. Picture. 19. Anonymous. Untitled. Prose. 20. Bibby, Eugenia. The Separation of Hans and Feet Part III . Prose. 20. Smrcina, Orville. Untitled. Picture. 20. Anonymous. Untitled. Prose. 21. Anonymous. Le Quarantine Ballade . Poem. 20. Anonymous. L\u27envoi . Poem. 20. Anonymous. Book Nook . Prose. 22. Anonymous. Untitled. Prose. 23. Anonymous. Age Wisdom . Prose. 23. Brown Jug. Wrecked Romance . Prose. 24. Anonymous. Untitled. Prose. 24. Satyr. Untitled Prose. 24. Lord Jeff. Untitled Prose. 25. Mink. Have You Heard This One? Prose. 27. California Pelican. Subject to Change . Prose. 28. Yale Record. Logical . Prose. 28. Minnesota. Untitled. Prose. 28. Western Reserve Red Cat. Wotta Sight! . Prose. 29. Texas Ranger. Untitled. Prose. 29. Sniper. Untitled. Prose. 29. Anonymous. Mon Dieu . Poem. 31. Anonymous. Untitled. Poem. 31. College Humor. Untitled. Prose. 31. Kitty-Kat. Untitled. Prose. 32. Anonymous. Untitled. Prose. 32. The Old Maid. Untitled. Poem. 32

Meeting Report for Mobile DNA 2010

An international conference on mobile DNA was held 24-28 April 2010 in Montreal, Canada. Sponsored by the American Society for Microbiology, the conference's goal was to bring together researchers from around the world who study transposition in diverse organisms using multiple experimental approaches. The meeting drew over 190 attendees and most contributed through poster presentations, invited talks and short talks selected from poster abstracts. The talks were organized into eight scientific sessions, which ranged in topic from the evolutionary dynamics of mobile genetic elements to transposition reaction mechanisms. Here we present highlights from the platform sessions with a focus on talks presented by the invited speakers