1,103 research outputs found

    07. Proton-Proton Correlation Functions as a Probe to Reaction

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    Proton-Proton Correlation Functions as a Probe to Reaction

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    In an experiment at NSCL, proton-proton (p-p) correlation functions were measured in 40Ca+40Ca and 48Ca+48Ca reactions, both at E/A = 80 MeV. The High Resolution Array (HiRA) detected light particles with excellent energy (\u3c200 keV) and angular (~0.2o) resolution. The MSU 4pi Array covered 77% of the total 4pi solid angle and was used to determine the impact parameter for collisions using transverse energy (Et) as the relevant observable. Two-particle correlation functions are employed in this work to measure the space-time extent of the source. A transport model previously predicted that the p-p correlation functions would be sensitive to the density dependence of the symmetry energy, while other work had already shown the p-p correlation functions to be sensitive to nucleon-nucleon (NN) in-medium cross sections. More detailed calculations performed in this dissertation indicate that that sensitivity to the symmetry energy is subtle. Much less subtle is the dependence of the p-p correlation functions on the laboratory angle of the total momentum vector of the two protons. At forward angles, where the correlation function is sensitive to the projectile spectator, the measured correlation functions appear consistent with sources that are very extended in space-time. The space-time extent of these sources exceed the predictions of BUU transport calculations, which are the main tool for probing the symmetry energy via correlation functions. At backward angles, where it is sensitive to the expanding participant source, the observed sources are more compact; there the trends can be reproduced by the BUU calculations. At the most forward angles, we note that the qualitative trends of the correlation function with angle and energy run counter to the qualitative trends of smaller sources for particles with higher momentum typically reported by published work in this incident energy domain. While we observe this latter trend at backward angles, the momentum dependence in the source size observed at forward angles is comparatively weak and trends in the opposite direction, with the most energetic protons displaying the weakest correlation functions. These energetic protons are closer to the expected velocity for projectile spectator remnants, suggesting their origins in the decay of these remnants. Further analysis of the correlation functions with gates on rapidity and transverse momentum allowed a clean exclusion of projectile decay. After excluding this kinematic domain, it was possible to obtain data that can be compared to a BUU transport model. This model, however, predicted a weak sensitivity to the density dependence of the symmetry energy that is too small to be experimentally probed. Consistent with prior work, we find a strong sensitivity to the NN in-medium cross section reduction as well as a strong previously unobserved sensitivity to the production of light clusters. Comparisons between the BUU calculations establish the sensitivity of data to these transport quantities as well as the range of values for these transport quantities that may be consistent with the present measurements

    Conservation Assessment and Habitat Notes for Three Rare Alabama Crayfishes: Cambarus cracens, Cambarus scotti, and Cambarus unestami

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    Over seventy percent of the world\u27s freshwater crayfish species are found within the United States, and much of this diversity is concentrated in the southeastern United States. Yet many of these species remain understudied. Of particular interest is the conservation status of these understudied taxa. We conducted fieldwork in 2011 across northeastern Alabama and northwestern Georgia to review the occurrence, habitat, and in sonic cases, local population densities of three crayfish species (Cambarus scotti, C. unestami, and C. cracens) to determine current distributions in relation to historical surveys. All three species occur in flowing small to medium-sized streams with firm substrates of gravel, cobble, and bedrock. Two species (C. scotti and C. unestami) have stable populations, occurring at 79% and 90% of sites surveyed, respectively. In contrast, surveys for the third crayfish species (C. cracens) indicated a need for conservation action, with this species occurring at a single site

    Flamingo Vol. IV N 2

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    Schmitz. Cover. Picture. 0. Sun Dodger. LADY-, HERE I AM. Prose. 1. Anonymous. Untitled. Picture. 5. Anonymous. Prose. 7. Anonymous. This Thing Evolution. Prose. 7.; I.E.A. SPRING BREATH. Poem. 8. I.E.A. Night. Poem. 8. C.K. THE BUBBLE. Poem. 8. Anonymous. Night. Poem. 8. I.E.A. Effects. Poem. 8. G.W. THE DIFFERENCE. Poem. 8. Gila Monster. Mad May. Prose. 9. Kated, Ed U. Romeo, Beware! Poem. 10. Anonymous. Untitled. Prose. 10. Anonymous. Untitled. Prose. 10. Anonymous. Picture. 10. Anonymous. PRIMORDIAL. Prose. 10. Anonymous. SOMETIMES. Poem. 10. Anonymous, IT\u27S A LOT TO ME, But nothing to thee. Poem. 10. Anonymous. Untitled. Prose. 10. Valspar, U.S. People Who Want to Look Young and Beautiful. Prose. 11. Del. \u27To snare some other bird.\u27 Picture. 11. Anonymous. Picture. 12. Anonymous. Untitled. Prose. 12. G.W. Untitled. Prose. 12. Anonymous. Untitled. Prose. 12. Wellman, G. 7:00 A. M. Poem. 13. Anonymous. Untitled. Prose. 13. Anonymous. Portraits of Local Celebrities Number Three. Picture. 13. E.T. TO CHLOE CAMPUSSED. Poem. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Poem. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Poem. 13. Anonymous. ADAM\u27S RIB. Poem. 13. Anonymous. Untitled. Prose. 13. Anonymous. THIS\u27LL RUSSIA. Prose. 13. Anonymous. Untitled. Prose. 13. Howard. THE BELLS. Poem. 14. Anonymous. Untitled. Prose. 14. Anonymous. Untitled. Poem. 14. Anonymous. Untitled. Prose. 14. Anonymous. Untitled. Prose. 14. H.K. Picture. 14. Anonymous. Untitled. Prose. 14. Anonymous. Untitled. Poem. 14. Anonymous. Untitled. Prose. 14. Anonymous. Untitled. Poem. 14. Anonymous. Untitled. Picture. 15. Anonymous. 1923—TRACK—1923. Prose. 15. Anonymous. Untitled. Picture. 15. Anonymous. Untitled. Picture. 15. Anonymous. In. Prose. 16. Anonymous. SPIKED SHOES. Prose. 17. Anonymous. Untitled. Prose. 18. Anonymous. Untitled. Prose. 18. Anonymous. Untitled. Prose. 18. E.B. Spring Must Be Here. Picture. 19. E.T. AH! BITTER GRIEF. Poem. 20. Anonymous. THE HAIR-BRAINED BOY. Poem. 20. Davis, Dick. Picture. 20. Anonymous. Untitled. Poem. 20. Anonymous. Untitled. Prose. 20. Anonymous. Untitled. Prose. 20. Anonymous. 1923—BASEBALL—1923. Prose. 21. Anonymous. Untitled. Prose. 21. Anonymous. Picture. 22. Anonymous. Untitled. Prose. 22. C.K. and K.H. A Reign Check. Picture. 22. Medley. Untitled. Prose. 25. Wisconsin Octopus. Untitled. Prose. 25. Sun Dodger. HERE, KITTY. Prose. 25. Anonymous. Untitled. Prose. 25. Anonymous. Untitled. Prose. 25. Life. Untitled. Prose. 25. Goblin. Untitled. Prose. 26. Boll Weevil. Quick Work. Prose. 26. Lord Jeff. Untitled. Prose. 26. Chicago News. Untitled. Prose. 26. Anonymous. Untitled. Prose. 26. Tar Baby. Untitled. Prose. 26. Texas Scalper. Untitled. Prose. 26. Goblin. Untitled. Prose. 26. Gargoyle. Untitled. Prose. 26. Panther. Untitled. Prose. 26. Clyde. Picture. 28. Anonymous. Untitled. Prose. 28. Froth. Untitled. Prose. 28. Sun Dodger. Untitled. Prose. 28. Princeton Tiger. Untitled. Prose. 28. Boston Transcript. WHAT\u27D SHE CARE? Prose. 28. Birmingham Age-Herald. The First Lesson. Prose. 28. Princeton Tiger. Untitled. Prose. 29. Black and Blue Jay. Untitled. Prose. 29. Juggler. Untitled. Prose. 29. Sour Owl. THERE\u27S A REASON! Prose. 31. Mink. Untitled. Prose. 31. Bison. Untitled. Prose. 31. Lampoon. Untitled. Prose. 31. Punch Bowl. Untitled. Prose. 31. Showme. Untitled. Prose. 31. Juggler. Untitled. Prose. 31. Mink. Untitled. Prose. 31. Dirge. Untitled. Prose. 31. Couger\u27s Paw. Untitled. Prose. 31. Black and Blue Jay. Untitled. Prose. 31. Bison. Untitled. Prose. 32. Bison. Caution. Prose. 32. Lampoon. Untitled. Poem. 32. Sour Owl. Untitled. Prose. 32. Boston U. Beanpot. Fore. Poem. 32. Tiger. Untitled. Prose. 32. Purple Parrot. ABOUT THIS TIME OF YEAR. Prose. 32

    Randomised controlled trial of fish oil supplement to treat cancer cachexia

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    This is the protocol for a review and there is no abstract. The objectives are as follows: Our overall aim is to provide an overview of interventions for preventing falls in older people by summarising the evidence from multiple Cochrane intervention reviews that evaluate the effects (primarily, rate of falls and number of fallers) of these interventions in different populations of older people, such as those defined by setting or by specific medical conditions. Fall prevention interventions will include those in the following categories: supervised or unsupervised exercises; medication; surgery; management of urinary incontinence; fluid or nutrition therapy; psychological; environment and assistive technologies; social environment; knowledge/education interventions and any other interventions that do not fall into one of these categories (Lamb 2007). Interventions tested may belong to one category ('single' intervention), or more than one category ('multiple' and 'multifactorial' interventions)

    Government of Malawi's unconditional cash transfer improves youth mental

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    We explore the impacts of Malawi's national unconditional cash transfer program targeting ultra-poor households on youth mental health. Experimental findings show that the program significantly improved mental health outcomes. Among girls in particular, the program reduces indications of depression by about 15 percentage points. We investigate the contribution of different possible pathways to the overall program impact, including education, health, consumption, caregiver's stress levels and life satisfaction, perceived social support, and participation in hard and unpleasant work. The pathways explain from 46 to 65 percent of the program impact, advancing our understanding of how economic interventions can affect mental health of youth in resource-poor settings. The findings underline that unconditional cash grants, which are used on an increasingly large scale as part of national social protection systems in Sub-Saharan Africa, have the potential to improve youth mental wellbeing and thus may help break the vicious cycle of poverty and poor mental health

    Government of Malawi's unconditional cash transfer improves youth mental

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    We explore the impacts of Malawi's national unconditional cash transfer program targeting ultra-poor households on youth mental health. Experimental findings show that the program significantly improved mental health outcomes. Among girls in particular, the program reduces indications of depression by about 15 percentage points. We investigate the contribution of different possible pathways to the overall program impact, including education, health, consumption, caregiver's stress levels and life satisfaction, perceived social support, and participation in hard and unpleasant work. The pathways explain from 46 to 65 percent of the program impact, advancing our understanding of how economic interventions can affect mental health of youth in resource-poor settings. The findings underline that unconditional cash grants, which are used on an increasingly large scale as part of national social protection systems in Sub-Saharan Africa, have the potential to improve youth mental wellbeing and thus may help break the vicious cycle of poverty and poor mental health

    Flamingo Vol. III N 4

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    Schmitz. Cover. Picture. 0. Octopus. The Creed of a Frosh. Poem. 4. Widow. Chanson Du Frosh. Poem. 4. Widow. Untitled. Prose. 4. W.M.P. The College Creed. Prose. 4. Anonymous. SHE\u27S GOT THE CLOTHES, THIS FROSH SO FINE, AND HEAVEN KNOWS SHE\u27S GOT THE LINE. SHE\u27S TEETH OF PEARL THAT OFTEN SHOW. HER HAIR WOULD CURL IF IT COULD GROW. WITH ME SHE\u27S IT, GETS BY IMMENSE— BUT I MUST ADMIT SHE\u27S GOT NO SENSE. Picture. 5. Schmitz. SHADES OF THE SUMMER RESORTSOME, ER, KIDD. Picture. 6. Holt, Kilburn. Priest and Levite. Prose. 7. Anonymous. Commentary on a Poem. Prose. 9. Anonymous. Address to an Idle Dream. Poem. 10. Anonymous. Apology. Poem. 10. Uber, D. ONCE MEN LIKED THE GIRLS WHOSE ACQUAINTANCE THEY MADE FOR THE SHY, BASHFUL GLANCES THEY MET. BUT NOW IT\u27S THE HANG OF THE EARRINGS OF JADE, AND THE TILT OF THE CIGARETTE. Picture. 11. K.K.H. Helpful Hints for Foggy Freshmen. Prose. 11. Anonymous. Sonnet in Slang. Prose. 11. Anonymous. Untitled. Prose. 11. Anonymous. Untitled. Prose. 11. Anonymous. Untitled. Prose. 11. Clyde. CAN YOU FIGHT? NOT WITH A WOMAN. COME ON THEN YOU PIE-FACE! . Picture. 11. Anonymous. VITRIOLA RECORDS FOR SEPTEMBER. Prose. 12. Anonymous. Untitled. Prose. 12. Anonymous. Untitled. Prose. 12. Anonymous. Untitled. Prose. 12. Anonymous. Untitled. Prose. 12. E.B. Chapel Cherubs. Picture. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. DO YOU THINK YOU COULD CARE FOR A CHAP LIKE ME? I THINK SO—IF HE WASN\u27T TOO MUCH LIKE YOU. Picture. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. Untitled. Prose. 13. Anonymous. BASIC PLOT FOR SOCIETY DRAMA. Prose. 13. Anonymous. Untitled. Prose. 14. Anonymous. Editor. Picture. 15. Bridge. Denison Comics. Picture. 16. Ubersax. I HAVE BAD NEWS FOE YOU, CLARENCE. SO? YES. I VISITED A FORTUNE TELLER\u27S THIS AFTERNOON, AND SHE TOLD ME THAT I AM GOING TO MARRY A HANDSOME MAN. Picture. 18. Anonymous. The Career of a Good Joke. Prose. 18. W.M.P. Gentle Hints on Curriculum-Synopsis of Popular Courses. Prose. 18. Anonymous. Untitled. Prose. 18. Anonymous. MAY— WOULD YOU WEAR A RENTED BATHING SUIT? JUNE-\u27TT DEPENDS WHERE THE RENT WAS. Picture. 18. Anonymous. Untitled. Poem. 18. Anonymous. Untitled. Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. A READ-LETTER DAY AT THE SEM THIS MONTH. Picture. 19. Anonymous. Famous Greens. Prose. 19. Anonymous. TIE— HOW CAN I THICKEN MY HAIR? CURLS— TRY MOLASSES AND FLOUR. Picture. 19. Anonymous. \u27Twas Ever Thus! Poem. 19. Anonymous. Untitled. Prose. 22. Anonymous. Untitled. Prose. 22. Anonymous. Untitled. Prose. 22. Anonymous. Untitled. Prose. 22. Anonymous. Untitled. Prose. 22. Anonymous. Untitled. Prose. 22. Schmitz. POPULAR COURSE IN TENNYSON. Picture. 23. Purple Cow. Untitled. Prose. 24. Purple Parrot. Heard After Vacation. Prose. 24. Octopus. The Cost of Custom. Prose. 24. Purple Cow. Untitled. Prose. 24. Chaparral. All That Glitters-. Prose. 24. Jack-0-Lantern. Untitled. Prose. 24. Juggler. Untitled. Prose. 24. Reel, Virginia. Untitled. Prose. 24. Anonymous. Oh Gosh! Prose. 25. Brown Jug. Untitled. Prose. 25. Orange Peel. Try and Laugh This Off. Prose. 25. Widow. Untitled. Prose. 25. Banter. Untitled. Prose. 25. Punch Bowl. Extract From Mythology. Prose. 26. Dodo. Untitled. Prose. 26. Puppet. Untitled. Prose. 26. Orange Owl. PAGE MUELLER. Prose. 26. Juggler. Untitled. Prose. 26. Widow. Untitled. Prose. 26. Gargoyle. Untitled. Prose. 26. The Cougar\u27s Paw. The Devil\u27s Dictionary. Prose. 27. Chaparral. Where Did IO Dine? Prose. 27. Octopus. Untitled. Prose. 27. Malteaser. Untitled. Prose. 27. Widow. Untitled. Prose. 27. Chaparral. Untitled. Prose. 27. Malteaser. Untitled. Prose. 27. Mirror. Untitled. Prose. 28. Chaparral. Untitled. Prose. 28. Widow. Higher Mathematics. Prose. 28. Cougar\u27s Paw. Untitled. Prose. 28. Reel, Virginia. Untitled. Prose. 28. Tiger. This May Be New To Someone. Prose. 28. Dodo. Untitled. Prose. 28. Purple Cow. Untitled. Prose. 28. Widow. Page Red Stone. Prose. 28. Dodo. Untitled. Prose. 28. Anonymous. Their Idea of Something Funny. Prose. 29. Anonymous. Untitled. Prose. 29. Garber, Jock. OUR QUESTIONABLE DEPARTMENT. Prose. 30. Brown Jug. Untitled. Prose. 31. Cougar\u27s Paw. Untitled. Prose. 31. Anonymous. Untitled. Prose. 32. Dodo. Untitled. Prose. 32. Purple Cow. Untitled. Prose. 32

    Dissecting the Re-Os molybdenite geochronometer

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    Rhenium and osmium isotopes have been used for decades to date the formation of molybdenite (MoS2), a common mineral in ore deposits and the world’s main source of molybdenum and rhenium. Understanding the distribution of parent 187Re and radiogenic daughter 187Os isotopes in molybdenite is critical in interpreting isotopic measurements because it can compromise the accurate determination and interpretation of mineralization ages. In order to resolve the controls on the distribution of these elements, chemical and isotope mapping of MoS2 grains from representative porphyry copper-molybdenum deposits were performed using electron microprobe and nano-scale secondary ion mass spectrometry. Our results show a heterogeneous distribution of 185,187Re and 192Os isotopes in MoS2, and that both 187Re and 187Os isotopes are not decoupled as previously thought. We conclude that Re and Os are structurally bound or present as nanoparticles in or next to molybdenite grains, recording a complex formation history and hindering the use of microbeam techniques for Re-Os molybdenite dating. Our study opens new avenues to explore the effects of isotope nuggeting in geochronometers

    Weekend admission and mortality from acute exacerbations of chronic obstructive pulmonary disease in winter

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    Historically, acute medical staffing numbers have been lower on weekends and in winter numbers of medical admissions rise. An analysis of acute exacerbations of chronic obstructive pulmonary disease (AECOPD) admissions to Portsmouth Hospitals over a seven-year period was undertaken to examine the effects of admission on a weekend, of winter, and with the opening of a medical admissions unit (MAU). In total, 9,915 admissions with AECOPD were identified. Weekend admissions accounted for 2,071 (20.9%) of cases, winter accounted for 3,026 (30.5%) admissions, and 522 (34.4%) deaths. Adjusted odds ratio (OR) for death on day 1 after winter weekend admission was 2.89 (95% confidence interval (CI) 1.035 to 8.076). After opening the MAU, the OR for death day 1 after weekend winter admission fell from 3.63 (95% CI 1.15 to 11.5) to 1.65 (95% CI 0.14 to 19.01). AECOPD patients have an increased risk of death after admission over a weekend in winter and this effect was reduced by opening a MAU. These findings have implications for the planning of acute care provision in different seasons. © Royal College of Physicians, 2011. All rights reserved
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