82 research outputs found
Letting the Candidates Own the Recount: The 1962 Minnesota Gubernatorial Recount and its Use of Alternative Dispute Resolution
Published in cooperation with the American Bar Association Section of Dispute Resolutio
Futures Project Anticipates Changes and Challenges Facing Forests of the Northern United States
Natural Resource Ecology & Mgm
Recommended from our members
Dental microwear textures across cheek teeth in canids: Implications for dietary studies of extant and extinct canids
Dental microwear texture analysis (DMTA) has been instrumental in reconstructing dietary ecology of extinct and extant carnivorans. Current sampling methods for canids focus on lower second molars (m2), where the grinding of flesh and bone captures dental microwear indicative of diet. However, dental microwear on other biomechanically analogous grinding facets (i.e. the talonid basin on the lower carnassial, m1) might be comparable and could help dramatically increase sample sizes of fossil specimens, as carnassials are more frequently recovered and identifiable than lower m2s. Here, we quantify the degree to which dental microwear textures between grinding facets on lower first and second molars are similar in two species of extant canids, coyotes (Canis latrans) and gray wolves (Canis lupus). Casts of paired m1s and m2s for each individual were sampled from museum collections and analyzed for three microwear parameters that correlate with diet in carnivorans: anisotropy, complexity, and textural fill volume. Within wolves, the m1 talonid and m2 are indistinguishable in all DMTA parameters. In coyotes, grinding facets of the ml talonid and m2 are indistinguishable in complexity and textural fill volume, but anisotropy values of m1s are significantly lower than those of m2s. Differences in anisotropy between species were unlikely to be driven by biomechanical shifts in bite force between the ml talonid and m2, but could stem from a combination of subtle morphological variation and intra-tooth variation. Overall, these data suggest that regions across molars with similar functions yield similar dental microwear textures. Finally, to demonstrate the effect of increased sample size, we show how the combination of DMTA data from lower m1 talonids and lower m2s of the hypocarnivorous Phlaocyonini canids from the John Day Formation of eastern Oregon, USA, alters the size and shape, but not position, of their reconstructed dietary "niche" space and hence interpretations about dietary behavior
Histological and immunohistochemical investigation on ovarian development and plasma estradiol levels in the swordfish (<i>Xiphias gladius</i> L.)
The paper reports a histological and immunohistochemical description of oocyte growth and ultrastructural aspects of zona radiata (ZR) formation as well as the relationship between plasma estradiol-17β, (E2 ) levels and ovarian development in swordfish (Xiphias gladius L.) from the Mediterranean Sea. Ovaries were inactive during March to mid April; maturation occurred during late April to June and spawning in June and July. Zona radiata formation starts, as Pas positive material, in oocytes at the lipid stage. In this stage a deposit of electrondense material between oolemma and follicular cells appears. In the cortical alveoli stage and through the early vitellogenic stage, the deposition of a moderately electrondense material occurred on the inner side of the ZR. Finally, in late vitellogenic oocytes a third layer, made of microfibrillar material, appeared. The immunohistochemical analyses revealed that the initial internalisation of hepatic zona radiata proteins (Zrp) in the swordfish oocyte starts before the uptake of vitellogenin (Vtg) and that it is associated with the low previtellogenic E2 plasma levels, while a significant E2 increase in plasma is associated with the beginning of Vtg uptake. This would appear to confirm the hypothesis that the differential and sequential induction of zonagenesis and vitellogenesis may reflect a general feature of teleost oogenesi
Ovine pedomics : the first study of the ovine foot 16S rRNA-based microbiome
We report the first study of the bacterial microbiome of ovine interdigital skin based on 16S rRNA by pyrosequencing and conventional cloning with Sanger-sequencing. Three flocks were selected, one a flock with no signs of footrot or interdigital dermatitis, a second flock with interdigital dermatitis alone and a third flock with both interdigital dermatitis and footrot. The sheep were classified as having either healthy interdigital skin (H), interdigital dermatitis (ID) or virulent footrot (VFR). The ovine interdigital skin bacterial community varied significantly by flock and clinical condition. The diversity and richness of operational taxonomic units was greater in tissue from sheep with ID than H or VFR affected sheep. Actinobacteria, Bacteriodetes, Firmicutes and Proteobacteria were the most abundant phyla comprising 25 genera. Peptostreptococcus, Corynebacterium and Staphylococcus were associated with H, ID and VFR respectively. Sequences of Dichelobacter nodosus, the causal agent of ovine footrot, were not amplified due to mismatches in the 16S rRNA universal forward primer (27F). A specific real time PCR assay was used to demonstrate the presence of D. nodosus which was detected in all samples including the flock with no signs of ID or VFR. Sheep with ID had significantly higher numbers of D. nodosus (104-109 cells/g tissue) than those with H or VFR feet
The Lantern, 2013-2014
⢠Strikes ⢠Pietro di Venezia ⢠To the Lover of Small Things ⢠Jim\u27s Big Day ⢠Akademiks ⢠Redamancy ⢠A Love Poem for Arctia Caja ⢠Mother River ⢠The Lyrics to Your Song ⢠Nerves ⢠Gemini Season ⢠White Interface ⢠The Last Time I Played with Dolls ⢠The Mechanic ⢠My Goldfish ⢠Put Down Your Hammer ⢠Strip ⢠Hollywood ⢠Identity ⢠The Grey Zone ⢠Sophia ⢠When I Became a Poet ⢠Unbroken ⢠The Veteran Aeronaut ⢠I Have Running Water but They had the Stars ⢠Not A Nigga ⢠Mother, Adam, Eve ⢠From Fragile Seeds: A Palindrome ⢠Conspiring, The Spires ⢠Finally Working Out What Goes Where (God, For Example, is in His Kingdom) ⢠Identity Crisis ⢠Affection ⢠Patience ⢠An Enchanting Lost Cause ⢠False Starts ⢠Soggy Rice, Lukewarm Water ⢠The Glow ⢠Heat ⢠9-14 ⢠Filigree ⢠Diane Arbus ⢠Touched ⢠Dying Alive ⢠Just Another Drunkard on the Train ⢠Dinner ⢠The French Legionnaire ⢠Conspiracy and Theory ⢠1249am ⢠Colored Pencils ⢠Sea Glass ⢠Roundtrip ⢠The Muse Heard Music ⢠Lacrimosa ⢠The Allegory of the Maze ⢠The Stars on Stuart Road ⢠To Isabella ⢠For Want of a Potato Chip ⢠Termite Nests ⢠Saving a Rose ⢠Today and Yesterday ⢠A Foggy New York ⢠Cat; Wurtzburg ⢠Embrace ⢠Faces ⢠Geisha ⢠Pacis Leo ⢠Patterns ⢠Te-Whanganui-a-Tara (The Dock)https://digitalcommons.ursinus.edu/lantern/1180/thumbnail.jp
Conference of Microelectronic Research 1990
https://scholarworks.rit.edu/meec_archive/1003/thumbnail.jp
EMIRGE: reconstruction of full-length ribosomal genes from microbial community short read sequencing data
Recovery of ribosomal small subunit genes by assembly of short read community DNA sequence data generally fails, making taxonomic characterization difficult. Here, we solve this problem with a novel iterative method, based on the expectation maximization algorithm, that reconstructs full-length small subunit gene sequences and provides estimates of relative taxon abundances. We apply the method to natural and simulated microbial communities, and correctly recover community structure from known and previously unreported rRNA gene sequences. An implementation of the method is freely available at https://github.com/csmiller/EMIRGE
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