131,452 research outputs found
Conversion des valeurs d\u27exposition admissibles (VEA)
No full textCet utilitaire permet d\u27accéder aux valeurs d\u27exposition admissible (VEA) de l\u27annexe 1 du RSST.
Il permet également de convertir les VEA exprimées en partie par million (ppm) pour des conditions température et pression normales (TPN) (25°C et 760 mm Hg).
À l\u27instar des PELs de OSHA, des RELs de NIOSH et des TLVs® de l\u27ACGIH®, les VEA du RSST exprimées en ppm le sont pour des conditions TPN.
Les VEA dont les unités sont en mg/m3 ou en f/cc sont invariables
Hodgsonicoccus Vea & Grimaldi 2015
No full textHodgsonicoccus Vea & Grimaldi, 2015. Hodgsnicoccidae (archaeococcoids) Hodgsonicoccidae Vea & Grimaldi (2015: 28). This family was described from Lebanese amber (Early Cretaceous).Published as part of Williams, D. J., 2020, Recent family-group names (2013 - 2019) in the scale insects (Hemiptera: Sternorrhyncha: Coccomorpha), pp. 143-145 in Zootaxa 4768 (1) on page 144, DOI: 10.11646/zootaxa.4768.1.9, http://zenodo.org/record/377963
Kozarius Vea & Grimaldi 2015
No full textKozarius Vea & Grimaldi, 2015. Kozariidae (archaeococcoids). Kozariidae Vea & Grimaldi (2015: 19). The authors described this family from Burmese amber and state that the family is unique among scale insect families but has some features similar to those of the family Matsucoccidae.Published as part of Williams, D. J., 2020, Recent family-group names (2013 - 2019) in the scale insects (Hemiptera: Sternorrhyncha: Coccomorpha), pp. 143-145 in Zootaxa 4768 (1) on page 144, DOI: 10.11646/zootaxa.4768.1.9, http://zenodo.org/record/377963
Using DEA and VEA to Evaluate Quality of Life in the Mid-Atlantic States
No full textIn this study we use data envelopment analysis (DEA) and an extension of DEA called value efficiency analysis (VEA) to explore the “"production”" of quality of life within counties in the mid-Atlantic region and the extent to which production frontiers and efficiency differ between rural and urban counties. These methods allow us to identify counties that are inefficient in their quality of life production, and to rank (using DEA) those counties according to their distance from a performance standard established by other observed counties(using VEA), or by a single unit designated as "“most preferred"(using VEA).”data envelopment analysis, value efficiency analysis, quality of life, Community/Rural/Urban Development,
SATELLITE BANDS OF K, Rb AND Cs RESONANT LINES AS FRANCK-CONDON WNDOWS TO INTERMEDIATE LONG-RANGE MOLECULES
No full textReferences: 1. R. Beuc, S. Miloevi, M. Movre, G. Pichler and D. Vea, FIZIKA (YU), 14 (1982) 345-349. 2. Awan and Lewis, J. Phys. B:Atom. Mol. Phys 3. D. Vea, R. Beuc, S. Miloevi and G. Pichler, The European Physical Journal D. I (1998). 4. O. Dulier, R. Kosloff, F. Masnou-Seeuws and G. Pichler, Journal of Chemical Physics, 107 (1997) 10633.Author Institution: Institute of PhysicsVery far quasi-static wings of self-broadened first resonance lines of potassium(1) rubidium (2) and cesium (3) are rich in different types of satellite bands that stem from various avoided crossings. Detailed experimental study of the absorption and emission profiles in the region of satellite bands should reveal the possibility of existence of bound states in the so called intermediate long-range region. These bound states lie above the corresponding asymptotic level at internuclear distances of about 2-3 nm(4). They can be used to reach much higher bound intermediate long-range states of K2, Rb2 and Cs2 molecules at moderate or ultra-cold temperatures
Normarkicoccus cambayae Vea & Grimaldi 2015, new species
No full textNormarkicoccus cambayae, new species Figures 21C, 23 TYPE LOCALITY: Early Eocene, India, Gujarat, western India: Tadkeshwar lignite mines. TYPE: Holotype Tad-135, alate male in a 4 × 5 × 0.5 mm dark orange, polished amber piece, specimen in relatively good condition but with thoracic structures damaged, wings spread backward and touching together, body tilted in amber; accessible views: partial ventral and dorsal. India: Gujarat, western India: Cambay Shale Formation, Tadkeshwar lignite mines, coll. D. Grimaldi, P.C. Nascimbene, and H. Singh., deposited in the Birbal Sahni Institute for Palaeobotany, Lucknow, India. ETYMOLOGY: The species epithet comes from Cambay, the geological basin from which the amber was excavated. DIAGNOSIS: As for genus. DESCRIPTION: Body minute, spindle shaped, total length 365 μm, widest at mesothorax (ca. 200 μm). Head (fig. 23AB): Fused to thorax, ca. 80 μm wide. Ocular sclerites with two pairs of simple eyes each. Dorsal eyes on anterior margin of head, ventral eyes, meeting ventrally; with two lateral ocelli (10 μm). Head dorsally with a median crest, cuticle reticulate, bearing a few hairlike setae. Ventral ridges not observable. Antenna: 10-segmented, cuticle of pedicel reticulate, total length 225–250 μm; antennomere lengths (in μm) scape 16; pedicel 25, both scale and pedicel with short hairlike setae; flagellar segments III to X all filiform; III 25–30; IV 20–25; V 30; VI 25–30; VII 25–30; VIII 25–30; IX 25; X 15–20. Flagellomeres each with thick setae, probably fleshy but undifferentiated, ca. 15 μm long. Apical segment with 2 longer and thinner setae; 1 long, apical seta, apparently not capitate. Thorax: Prothorax membranous, cuticular ridges not visible. Thoracic structure not clearly visible, but dorsally, mesopostnotum long; ventrally, with a short basisternum. Wings: Forewings of neococcoid type, narrow base and apex rounded, ca. 420 μm long, 100 μm wide, symmetrical on midlongitudinal axis; subcostal ridge extending from base of the wing to more than 3/4 of wing length. Cubital ridge present, originating in basal quarter of wing, alar setae and sensoria absent, microtrichia present on wing membrane. Alar lobe present, receiving hooks of hamuli. Hamulohaltere narrow, ca. 40 μm long; with one hamulus. Legs (fig. 23C): Robust, all of subequal length, cuticular reticulations absent. Foreleg: coxa ca. 30 μm long; trochanter and femur 70–80 μm long, 17 μm wide, with few short hairlike setae (ca. 15 μm long); tibia 155 μm long, proximally narrow (7 μm wide), distally twice the basal width, with a few hairlike setae, more numerous and spinose distally (tibial spurs); tarsus 2-segmented, 35–40 μm long, 10 μm wide; tarsal digitules slightly clavate, shorter than claw; claw thin, 10 μm long, almost uncurved, claw digitules slightly clavate, reaching tip of claw, claw denticle absent. Abdomen: Relatively short and wide, ca. 172 μm long (but specimen tilted, 125 μm long without genital segment), 95 μm widest. Abdominal setae not visible except for pleural setae on last segments. Genital segment (fig. 23D): Penial sheath subtriangular (87 μm long, 45 μm at base), covered with a layer of thin bubbles. Aedeagus pointed at apex, short, ca. 65 μm long. Eversible endophallus absent.Published as part of Vea, Isabelle M. & Grimaldi, David A., 2015, Diverse new scale insects (Hemiptera: Coccoidea) in amber from the Cretaceous and Eocene with a phylogenetic framework for fossil Coccoidea, pp. 1-80 in American Museum Novitates 2015 (3823) on page 59, DOI: 10.1206/3823.1, http://zenodo.org/record/536792
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
FIGURE 2 in Morphology of the males of seven species of Ortheziidae (Hemiptera: Coccoidea)
No full textFIGURE 2. Graminorthezia graminis (Tinsley). Adult male. A. Thick and blunt setae on head and body. B. Antennal apical seta. C. Leg seta. D. Tibiotarsal connection. E. Claw.Published as part of Vea, Isabelle M., 2014, Morphology of the males of seven species of Ortheziidae (Hemiptera: Coccoidea), pp. 1-36 in American Museum Novitates 2014 (3812) on page 12, DOI: 10.1206/3812.1, http://zenodo.org/record/459825
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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