2,935 research outputs found
Tar sandstone investigation in southwestern Uinta Basin
No full textreportDuring the month of July 1972, the author assisted by Jonathan Mann studied the oil impregnated sandstone (hereafter OISS) deposits in the Lower Unit of the Parachute Creek Member of the Green River Formation on the southwestern edge of the Uinta Basin, along the Roan Cliffs and within the Roan Plateau. Careful mapping was conducted to determine the extent of the Sunnyside OISS deposit and to relate it to other deposits in the general vicinity. In addition to this mapping, which was restricted to the Flat Canyon and Sunnyside 15 min. quadrangles, (correlation investigations? ) were carried out in Nine Mile Canyon, Argyle Canyon, Indian Canyon, and at the headwaters of Avintaquin Canyon near Reservation Ridge (see USGS 7 1/2 min. quadrangles Gray Head Peak, 1969, and Flat Ridge, Utah, 1969). These areas, in this report, are further subdivided into smaller regions (often ridges or canyons) for further expansion of the results of the investigation. A number of the canyons could only be studied by hiking them through, others because of the size of the area studied and time requirements were studied by numerous stops from a four-wheel-drive truck. A field method to categorize the estimated richness of the OISS was used in the mapping: A numeral from I-V was assigned to a deposit, I being void of tar and progressing with each number until very rich OISS would be classed as V
Oil impregnated sandstone study near Bruin Point and Range Creek--Sunnyside Quadrangle
No full textreportAn investigation into the oil sandstones in the Book Cliffs area northest of Sunnyside, Utah, showed an eastward continuation of the oil impregnated sandstones (oiss) previously mapped (USGS, OM 86, 1948). The survey was conducted from June 19 through 21, 1972 by Sam Quigley and D. Craig Mann. The area mapped is found at the headwaters of Range Creek (T14S, R14E) and Dry Creek (T13S, R14E) in Carbon County. The oiss in the area occures in the Lower Green River
Process-independent strong running coupling
Full text linkWe unify two widely different approaches to understanding the infrared behaviour of quantum
chromodynamics (QCD), one essentially phenomenological, based on data, and the other computa-
tional, realised via quantum field equations in the continuum theory. Using the latter, we explain
and calculate a process-independent running-coupling for QCD, a new type of effective charge that
is an analogue of the Gell-Mann–Low effective coupling in quantum electrodynamics. The result is
almost identical to the process-dependent effective charge defined via the Bjorken sum rule, which
provides one of the most basic constraints on our knowledge of nucleon spin structure. This re-
veals the Bjorken sum to be a near direct means by which to gain empirical insight into QCD’s
Gell-Mann–Low effective charge.Ciencias Integrada
Simulium (Inseliellum) adelaideae Craig, 2004, n. sp.
No full text<i>Simulium</i> (<i>Inseliellum</i>) <i>adelaideae</i> n. sp. <p>(Figs. 1–6, 27)</p> <p> <i>Types</i></p> <p>Holotype</p> <p> <b>Larva</b>: early penultimate instar as slide mount. Label data: “ <i>Simulium</i> (<i>I</i>) <i>adelaideae</i>. TAHITI. Above Lac Vaihiria, alt. 643 m. S17° 40.26’ W149° 25.33’. 30.viii.1998. Coll. D. A. Craig. HOLOTYPE. <b>#</b> 16523" (BPBM).</p> <p> <i>Diagnosis</i></p> <p> <b>Larva</b>: head markedly brown and yellow, head spot pattern negative; apices of hypostomal teeth forming straight array with only median tooth protruding; postgenal cleft essentially absent; posterior arms of anal sclerite completely encircling base of posterior proleg, markedly so ventrally; accessory sclerites extended anteromedially</p> <p> <i>Description</i></p> <p> <b>Adult female</b> (Unknown) <b>Adult male</b> (Unknown) <b>Pupa</b> (Unknown)</p> <p> <b>Larva</b> (based on one mature penultimate instar larva)</p> <p>Body: total length 5.8 mm; colour evenly greyish brown. Head (Figs. 1, 2): width 0.9 mm, length 1.1 mm; distance between antennal bases 0.51 mm; head spots yellow, anterior of apotome pale yellow, remainder of cuticle rich brown; head margins convex, markedly so posteriorly; cervical sclerites fused to postocciput; setae numerous, length normal, sockets raised; cuticle markedly corrugated and rugose (Fig. 3). Antenna: longer than labral­fan stem; total length 0.47 mm; distal article 0.13 mm; whole antenna markedly dark brown. Labral fan: fan stem light brown, hairy distally and posteriorly; 23 dark brown rays, 0.89 mm in length; 5–6 posterior rays finer than others, medial rays 0.02 mm wide; microtrichia 0.5 ray width, pattern of longer microtrichia with 7 subequal then two markedly smaller microtrichia between; ray apex extended. Postgenal bridge (Fig. 2): 7 times longer than cleft depth; yellow anteriorly. Postgenal cleft: essentially absent, except for small V­shaped notch. Hypostoma (Fig. 4): 17 teeth; prominent median tooth extended beyond others; sublateral teeth increased slightly in length laterally, but with tips in straight array; lateral teeth slightly longer than sublateral teeth; 1 paralateral tooth; 5–6 lateral serrations; 6 hypostomal setae per side. Mandible (Fig. 5): only apical tooth well developed; spinous teeth markedly developed; serration prominent, basal sensillum distinct. Maxilla: lobe rounded; palpus 4 times longer than width—markedly developed (Fig. 2). Mandibular phragma: extended ventrally to 0.3 depth of maxillary base. Abdomen: slightly amphora­shaped; posterodorsal cuticle not tuberculate, but with clear ovoid tubercles lateral of anal sclerite; sensilla trichoid, slightly elongated, sockets normal. Anal sclerite (Fig. 6): well developed and darkly pigmented; median region expanded laterally, well pigmented, markedly hirsute with distinct clear sockets; accessory sclerites extended anteromedially almost to anterodorsal arms of anal sclerite; ventral arms extended around posterior proleg, substantially so ventrally. Posterior proleg circlet of hooks: with 110 rows of hooks, 15–16 hooks per row. Rectal papillae: three, with small basal papillae.</p> <p> <i>Additional material examined</i></p> <p>None.</p> <p> <i>Etymology</i></p> <p>Named after Adelaide, daughter of D. Joy and F. Elliott.</p> <p> <i>Comments</i></p> <p> Superficially similar to <i>S. cataractarum</i> larvae, <i>S. adelaideae</i> differs noticeably in its enhanced head pattern and is perhaps the most colourful of all <i>Inseliellum</i> larvae, matched perhaps only by the head pattern of larval <i>S. arlecchinum</i> (Craig and Joy 2000). The number and arrangement of hypostomal teeth is similar to that seen in the <i>hirticranium</i> subgroup (Craig and Joy 2000) and is reminiscent of that seen in the <i>oviceps</i> group. The virtually absent postgenal cleft is also shared with the <i>hirticranium</i> group, as is the development of the anal sclerite. The apical teeth of the mandible are also similar to those of <i>S. hispidum</i>. Absence of tubercles on the abdominal cuticle is shared with larvae of <i>S. cataractarum</i> and the <i>hirticranium</i> subgroup, except that <i>S. adelaideae</i> possesses tuberculate cuticle just anterior of the anal sclerite. Although sharing numbers of synapomorphic traits with the <i>hirticranium</i> subgroup, <i>S. adelaideae</i> does, however, not show the diagnostic elongated head setae possessed by larvae of that taxonomic segregate. Still, with its complement of character states, <i>S. adelaideae</i> will no doubt, after more detailed phylogenetic analysis, be shown to be related to <i>S. cataractarum</i> and probably basal to the <i>hirticranium</i> subgroup.</p> <p> The type locality of <i>S. adelaideae</i> is the highest stream on the road that continues past and above Lac Vaihiria and through a tunnel to emerge in the Papenoo Valley. Fed by a small cascade the stream flows though dense vegetation before emerging (Fig. 27) into sunlight, then crosses the road to plunge some 200 m down into the Lac Vaihiria Valley. With air temperature at 21° C, water temperature was 18° C, pH 8.4, and conductivity 50 µS. Water velocity was 76–98 cm /s and depth ca. 30 cm.</p> <p> This small stream is unusual in the complement of species collected. Cascade­dwelling species (<i>S. cataractarum</i>, <i>S. dussertorum, S. fossatiae</i>, <i>S. oviceps</i>) probably originate from the cascade immediately upstream. Larvae of <i>S. lotii</i> and <i>S. malardei</i>, typical of smaller streams at lower altitude, were markedly larger than normal. <i>Simulium cheesmanae</i> adults were captured while trying to bite the author.</p>Published as part of <i>Craig, Douglas A., 2004, Three new species of Inseliellum (Diptera: Simuliidae) from Polynesia, pp. 1-18 in Zootaxa 450</i> on pages 3-6, DOI: <a href="http://zenodo.org/record/157955">10.5281/zenodo.157955</a>
GAS PHASE RAMAN SPECTRA OF BUTADIENE AND BUTADIENE-d AND THE INTERNAL ROTATION POTENTIAL ENERGY FUNCTION
No full textL.~Carreira, J.~Phys.~Chem. 62, 3851 (1975).R.~Engeln, D.~Consalvo, and J.~Reuss, J.~Chem.~Phys. 160, 427 (1992).D.~Feller and N.~C.~Craig, J.~Phys.~Chem. 113, 1601 (2009).Author Institution: Dept. of Chemistry, Texas A\&M University, College Station, TX 77843-3255; Dept. of Chemistry \& Biochemistry, Oberlin College, Oberlin, OH 44074The Raman spectrum of butadiene has been previously reported by Carreira and by Engeln and co-workers . Both studies reported a series of bands corresponding to double quantum jumps of , the internal rotation vibration, of the trans rotamer. Both studies also reported weaker bands assigned to the higher energy conformer. Carriera assigned these to the cis form while Engeln assigned them to the gauche form. Recent high level calculations by Feller and Craig also assign the higher energy form as gauche. In the present study we report the gas phase Raman spectrum of butadiene and its d isotopomer at both C and C. Several new spectral features in the 330 to 210 cm region were observed and the effect of heating on the band intensities was studied. In addition, combination bands were observed in the 630 to 690 cm ( + ) and 1130 to 1180 cm ( + ) regions. A periodic potential energy function with V, V, V, V, and V terms was utilized to fit the data. This function was compared to the results from previous work and to the theoretical calculation
Effects of MK-801 on opioid antinociception : an examination of morphine, U50, 488H and SNC80 in male and female rats
Full text linkThesis (M.S.), Psychology, Washington State Universit
Tocopherol induced angiogenesis in placental vascular network in late pregnant ewes
Full text linkAbstract Background Tocopherols have biphasic, proangiogenic and antiangiogenic therapeutic effects. The objective of this clinical trial was to clarify tocopherol's placental angiogenic potential in late pregnant ewes following oral supplementation. Methods Eighteen pregnant ewes during late gestation were selected for this study. Ewes were given oral supplementation of 500 mg of alpha-tocopherol (aT; N = 6) or 1000 mg of gamma-tocopherol (gT; N = 7) or placebo (CON; N = 5) once daily from 107 to 137 days post breeding. Serum was obtained at weekly intervals and tissue samples were obtained at the end of supplementation to: 1) evaluate tocopherol concentrations in serum, uterus and placentome; 2) evaluate relative mRNA expressions of Vascular Endothelial Growth Factor (VEGF), Placental Growth Factor (PlGF), endothelial Nitric Oxide Synthase (eNOS) and Hypoxia Inducible Factors (HIF) in uterus, caruncle and cotyledon; 3) analyze the morphometry of the placental vascular network. Results Supplementation of aT or gT resulted in increased concentrations in serum, placentome and uterus compared to control (P Conclusion Daily oral supplementation of aT or gT increased angiogenesis in the placental vascular network in pregnant ewes during late gestation. Increase in placental angiogenesis may provide nutrients required for the development and growth of fetus during late pregnancy.</p
Confirmation Bias and the Open Access Advantage: Some Methodological Suggestions for the Davis Citation Study
No full text: Davis (2008) analyzes citations from 2004-2007 in 11 biomedical journals. For 1,600 of the 11,000 articles (15%), their authors paid the publisher to make them Open Access (OA). The outcome, confirming previous studies (on both paid and unpaid OA), is a significant OA citation Advantage, but a small one (21%, 4% of it correlated with other article variables such as number of authors, references and pages). The author infers that the size of the OA advantage in this biomedical sample has been shrinking annually from 2004-2007, but the data suggest the opposite. In order to draw valid conclusions from these data, the following five further analyses are necessary: (1) The current analysis is based only on author-choice (paid) OA. Free OA self-archiving needs to be taken into account too, for the same journals and years, rather than being counted as non-OA, as in the current analysis. (2) The proportion of OA articles per journal per year needs to be reported and taken into account. (3) Estimates of journal and article quality and citability in the form of the Journal Impact Factor and the relation between the size of the OA Advantage and journal as well as article “citation-bracket” need to be taken into account. (4) The sample-size for the highest-impact, largest-sample journal analyzed, PNAS, is restricted and is excluded from some of the analyses. An analysis of the full PNAS dataset is needed, for the entire 2004-2007 period. (5) The analysis of the interaction between OA and time, 2004-2007, is based on retrospective data from a June 2008 total cumulative citation count. The analysis needs to be redone taking into account the dates of both the cited articles and the citing articles, otherwise article-age effects and any other real-time effects from 2004-2008 are confounded. Davis proposes that an author self-selection bias for providing OA to higher-quality articles (the Quality Bias, QB) is the primary cause of the observed OA Advantage, but this study does not test or show anything at all about the causal role of QB (or of any of the other potential causal factors, such as Accessibility Advantage, AA, Competitive Advantage, CA, Download Advantage, DA, Early Advantage, EA, and Quality Advantage, QA). The author also suggests that paid OA is not worth the cost, per extra citation. This is probably true, but with OA self-archiving, both the OA and the extra citations are free
Process-Independent Effective Coupling: From QCD Green’s Functions to Phenomenology
No full textThis article reports on a very recent proposal for a new type of
process-independent QCD effective charge [Phys.Rev.D96(2017)054026] defined, as
an anologue of the Gell-Mann-Low effective charge in QCD, on the ground of
nothing but the knowledge of the gauge-field two-point Green's function, albeit
modified within a particular computational framework; namely, the combination
of pinch technique and background field method which makes possible a
systematic rearranging of classes of diagrams in order to redefine the Green's
function and have them obey linear QED-like Slavnov-Taylor identities. We have
here calculated that effective charge, shown how strikingly well it compares to
a process-dependent effective charge based on the Bjorken sum rule; and,
finally, employed it in an exploratory calculation of the proton
electromagnetic form factor in the hard scattering regime
Standing facilities and interbank borrowing: evidence from the Federal Reserve’s new discount window
Full text linkStanding facilities are designed to place an upper bound on the rates at which financial institutions lend to one another overnight, reducing the volatility of the overnight interest rate, typically the rate targeted by central banks. However, improper design of the facility might decrease a bank’s incentive to participate actively in the interbank market. Thus, the mere availability of central bank provided credit may lead to its use being more than what would be expected based on the characteristics of the interbank market. ; By contrast, however, banks may perceive a stigma from using such facilities, and thus borrow less than what one might expect, thereby reducing the facilities’ effectiveness at reducing interest rate volatility. We develop a model demonstrating these two alternative implications of a standing facility. Empirical predictions of the model are then tested using data from the Federal Reserve’s new primary credit facility and the US federal funds market. A comparison of data from before and after recent changes to the discount window suggests continued reluctance to borrow from the Fed.Discount window ; Federal funds market (United States)
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