59,317 research outputs found
Erratum to: Effect of moderate red wine intake on cardiac prognosis after recent acute myocardial infarction of subjects with Type 2 diabetes mellitus (Diabetic Medicine, (2006), 23, 9, (974-981), 10.1111/j.1464-5491.2006.01886.x)
No full textIn an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola.In an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola
Alicia Alonso. Personalidades. MD_AA_S_41 / 445
No full textDespués de una presentación de Carmen en el Teatro Bolshoi de Moscú, Alicia Alonso es felicitada por la bailarina rusa Galina Ulánova
The epidemiology of malaria in adults in a rural area of southern Mozambique.
No full textBACKGROUND: Epidemiological studies of malaria in adults who live in malaria endemic areas are scarce. More attention to the natural history of malaria affecting adults is needed to understand the dynamics of malaria infection and its interaction with the immune system. The present study was undertaken to investigate the clinical, parasitological and haematological status of adults exposed to malaria, and to characterize parasites in these individuals who progressively acquire protective immunity. METHODS: A cross-sectional survey of 249 adults was conducted in a malaria endemic area of Mozambique. Clinical, parasitological and haematological status of the study population was recorded. Sub-microscopic infections and multiplicity of infections were investigated using polymerase chain reaction (PCR) and restriction fragment length polymorphism of Plasmodium falciparum merozoite surface protein 2 (msp2). RESULTS: Prevalence of P. falciparum infection by microscopy (14%) and PCR (42%) decreased progressively during adulthood, in parallel with an increase in the prevalence of sub-microscopic infections. Anaemia was only related to parasitaemia as detected by PCR. Multiplicity of infection decreased with age and was higher in subjects with high P. falciparum densities, highlighting density-dependent constraints upon the PCR technique. CONCLUSION: Adults of Manhiça progressively develop non-sterile, protective immunity against P. falciparum malaria. The method of parasite detection has a significant effect on the observed natural history of malaria infections. A more sensitive definition of malaria in adults should be formulated, considering symptoms such as diarrhoea, shivering and headache, combined with the presence of parasitaemia
Elaboration on Kwapien's theorem: Representing bounded mean zero functions f as coboundary f = g ◦ T − g
No full textIn [8] Kwapien proved that every mean zero function f ∈ L∞[0, 1] we can write as f = g ◦ T − g for some g ∈ L∞[0, 1] and some measure preserving transformation T of [0, 1]. However, as was discovered in [4] there is a gap in the proof for the case that f is not continuous. The aim of this bachelor thesis is filling in that gap in the proof. We first extend Kwapien’s proof for continuous functions to certain other measure spaces. Thereafter, we use the method of proof suggested by Kwapien, to proof the theorem for mean zero function f ∈ L∞[0, 1] for which λ(f−1({x})) = 0 for all x ∈ R. Using this result we then proof that every mean zero function f ∈ L∞[0, 1] can be written as a sum f =(g1 ◦ T1 − g1) + (g2 ◦ T2 − g2) where g1, g2 ∈ L∞[0, 1] and where T1, T2 are measure preserving transformations of [0, 1]. We finish this thesis with an application of Kwapien’s theorem in the study to singular traces Applied Mathematic
Alona azorica Frenzel & Alonso 1988
No full textAlona azorica Frenzel & Alonso, 1988. (Figs 6, 8– 10) Alona azorica Frenzel & Alonso, 1988: 449 –465, figs 1–8; Alonso, 1996: 331 –332, fig. 147. Holotype. Female at the Zoological Museum of Hamburg University, K- 32354. Studied populations were collected in: Laguna Grande de Gredos (Gredos Range, Ávila, August 1983); Marzagón pond (Marzagón, Huelva, May 1979); Rocío pond (El Rocío, Huelva, May 1979); Laguna de Antela (R. Margalef leg., Orense, July, 1954); Laguna Corrubedu (Corrubedu, A Coruña, May, 1980); Las Naciones pond (Saucedilla, Cáceres, April, 1986). Short description: Parthenogenetic female. Body. In lateral view similar to that of previous species, regular oval (Fig. 8 A–B, 9 A), of moderate height, moderately compressed laterally. Maximum height at middle of body, in adults height/length ratio about 0.65–0.72. Dorsal margin uniformly curved; postero-dorsal and postero-ventral angles broadly rounded; posterior margin uniformly curved; ventral margin almost straight; antero-ventral angle rounded. Ventral margin with about 35–45 setae, the first ten setae long, next ten setae short, other setae of moderate length. Postero-dorsal angle (Fig. 9 B) as in previous species. Valves oblique or with small tubercules in dorsal portion, fully tuberculated specimens not recorded. Head same as in the previous species. Head shield (Fig. 8 C) similar to that of previous species, but its posterior margin forms a protruding angle with pointed tip, in large specimens posterior portion of head shield elongates and became more narrow. Three major head (Fig. 8 D, 9 C–D) pores with a narrow connection between two anterior pores; in smaller specimens broken connection sometimes present between middle and posterior pore (Fig 9 C). Distance between medium and posterior pore greatly increases with the size of specimen, varying from 1.5 to 2.5 distances between anterior and middle pore. Minute lateral head pores located at level before anterior major head pore. Labrum (Fig. 10 A) same as in previous species. Postabdomen (Fig. 8 E, 9 E–F) same as in previous species. Antennula and antenna same as in the previous species. Thoracic limbs. Limbs I–III (Fig. 10 B–F) same as in the previous species. Limb IV (Fig. 10 G–H) similar to in previous species but with the following differences: setae 5–6 of exopodite longer, seta 5 as long as seta 4, flame-torch setae of endite IV shorter, more robust and less differentiated in size. Limb V (Fig. 10 I) as in previous species. Male. For full description see Frenzel & Alonso, 1988, and Alonso, 1996. Body similar to that of the previous species. Postabdomen (Fig. 8 F) similar to that of previous species, but with much less prominent postanal angle, weakly narrowing in postanal portion and postanal angle not developed. Antennule and limb I same as in previous species. Size. According to Frenzel & Alonso (1988), minimum length of juvenile female 0.19 mm, maximum length of adult female 0.48 mm, length of adult male 0.28–0.34 mm.Published as part of Sinev, Artem Y., Alonso, Miguel, Miracle, Maria Rosa & Sahuquillo, Maria, 2012, The West Mediterranean Alona azorica Frenzel & Alonso, 1988 (Cladocera: Anomopoda: Chydoridae) is composed of two species, pp. 51-68 in Zootaxa 3276 on pages 60-61, DOI: 10.5281/zenodo.20963
Alona salina Alonso 1996
No full text<i>Alona salina</i> Alonso, 1996 <p>(Figs. 9–11)</p> <p> <i>Alona</i> sp. <i>—</i> Alonso, 1990: 224 –225, fig. 2a–b. <i>Alona salina</i> Alonso, 1996: 335 –337, fig. 150.</p> <p> <b>Material examined.</b> Parthenogenetic and ephippial females, adult and juvenile males (over 250 specimens in total) from Laguna de la Dehesilla, 39º25’19.08”, N, 2º50’26.47”E, neighborhood of Mota Del Cuervo, Castilla La Mancha, Spain, 0 1.05.1999.</p> <p> <b>Description.</b> <i>Parthenogenetic female</i>. General: In lateral view body regular oval, moderately high in adult (Fig. 9 C), lower, irregular oval in juveniles (Fig. 9 A–B). Maximum height in adult at the middle of the body; in juveniles, in the second quarter of the body. In juveniles of both instars height /length ratio about 0.60; in adults 0.64–0.68. Dorsally arched, without any depression at the border of valves and head shield. Posterodorsal and posteroventral angles broadly rounded. Posterior margin convex. Posterodorsal angle with about 50 setules of similar size, much thicker than in two previous taxa, separated into several groups. A row of about 100 smaller setules along the posterior margin (Fig. 9 E), at some distance from it on inner side of carapace. Ventral setae as in two previous species. Anteroventral angle rounded. Carapace covered by narrow longitudinal lines and hexagons, clearly visible under optic microscope (Fig. 9 D).</p> <p>Head relatively small, triangle-round in lateral view, rostrum short, pointing downward. Eye larger than ocellus. Distance from tip of rostrum to ocellus equal or slightly greater than that between ocellus and eye.</p> <p>Head shield with gently polygonal structures (Fig. 9 A–F). Three narrowly connected major head pores, connection between them more narrow than in two previous species (Fig. 10 A–B). Middle pore slightly smaller than others, located at the middle between others. PP about 0.6–0.8 IP. Lateral head pores slightly elongated, located about 1.1–1.2 IP distance from midline, at the level between the middle and anterior major head pores. Labrum (Fig. 10 C–E) as in two previous species.</p> <p> <i>Postabdomen</i> (Fig. 9 G–H) wider than in two previous species, weakly narrowing in postanal portion, with broadly rounded dorsodistal angle. Length about 2.3–2.5 height. Ventral margin almost straight. Inflated basis of claws bordered from distal margin by clear incision. Distal margin almost straight. Dorsal margin with distal part about 1.8–2.0 times longer than preanal one, with postanal and anal portion subequal in length. Postanal portion of distal margin weakly convex, anal portion concave. Preanal angle moderately defined, postanal angle not defined or weakly defined. Preanal margin almost straight.</p> <p>Postabdomen with 8–10 clusters of small marginal denticles and setules, decreasing in size basally, along preanal and anal margin; 8–10 lateral fascicles of setules; 6 or 7 fascicles in postanal portion wide, with setules two times longer than marginal denticles, fascicles in anal portion much smaller. First setules in postanal fascicles more thick than others. Postabdominal claw of moderate length, slightly shorter than preanal portion of postabdomen. Basal spine thin, about 1/4 of length of claw, a cluster of long setules located near its base.</p> <p> <i>Antennule</i> (Fig. 10 F) same as in <i>A. floessneri</i> <b>sp. nov</b>. Antenna (Fig. 10 G) same as in two previous species.</p> <p> <i>Thoracic limbs</i>: five pairs. Limb I as in two previous species (Fig. 10 H–I), but IDL setae 2 and 3 more strong and robust. Setae of endite III slightly differentiated in size. Limb II as in two previous species (Fig. 10 J). Limb III as in two previous species (Fig. 10 K–L), but seta 5 of exopodite armed with long, thick setules. Limb IV as in two previous species (Fig. 10 M–N), but setae 6 and 4 of exopodite almost as long as seta 5. A small sensillum on inner portion of the limb between bases of two basalmost flaming-torch setae, this structure was not observed in two previous species. Limb V as in two previous species (Fig. 10 O).</p> <p> <b>Ephippial female</b> (Fig. 11 A) with higher body than parthenogenetic female, ephippium dark yellowbrown, with prominenet sculpture in shape of longitudinal lines thicker than on the rest of valves, in some specimens irregular polygons are present in lower portion of ephippium.</p> <p> <b>Male</b>. General shape of juvenile males of instar I (Fig. 11 B) and II (Fig. 11 E) similar to that of juvenile females of same instar. General shape of adult male (Fig. 11 I) similar to that of instar II juvenile female, body height/body length = 0.63–0.65. Ocellus and eye of same size as in female.</p> <p> <i>Postabdomen</i>. In juvenile males of instar I similar to that of juvenile female (Fig. 11 C), with sperm duct openings located before the middle of ventral margin. In juvenile males of instar II, shorter than that of female (Fig. 11 F), with clear step on ventral margin in region of gonopores. Armament of postabdomen and postabdominal claw same as in female in both juvenile instars. In adult male, postabdomen short, with almost parallel margins in distal portion, dorso-distal angle broadly rounded (Fig. 11 J). Preanal angle not defined, postanal angle well-defined. Distal part of postabdomens 1.3 times longer than preanal. Sperm duct openings located almost at the end of postabdomen. Clusters of short setules in place of marginal denticles, lateral fascicles of setules same as in female. Postabdominal claw 1.5 times shorter than that of female, basal spine of same size as in female.</p> <p> <i>Antennule</i>. In instar I male same as in female. In instar II male antenule broader than in female, with anlage of male seta, aestetascs same as in female (Fig. 11 G). In adult male antennule much shorter than in female (Fig. 11 K), with 10 terminal and 2 lateral aesthetascs as long as terminal ones. Male seta arising at 1/3 length from tip, about 1/3 of antennule length.</p> <p>Thoracic limb I. In instar I male with short anlage of copulatory hook, IDL same as in female (Fig. 11 D). In instar II male, copulatory hook curved (Fig. 11 H). Ventral face of limb with anlage of copulatory brush seta and a peculiar hillock above it, not present in any other instar. IDL with anlage of male seta, other setae same as in female. In adult male, limb I more stout than that of female (Fig. 10 L), with U-shaped copulatory hook. Copulatory brush present. Row of about 15 short setules on ventral face of limb under copulatory brush (Fig. 11 M). IDL seta 1 absent, setae 2 and 3 setae subequal in length, much thinner than in female, male seta thick, curved, as long as seta 2.</p> <p> <b>Size.</b> In the studied population, instar I juvenile females length 0.29–0.32 mm, height 0.19–0.20 mm; instar II, length 0.35–0.38 mm, height 0.23–0.24 mm; adult female, length 0.39–0.61 mm, height 0.27–0.34 mm; instar I juvenile males, length 0.29–0.30 mm, height about 0.19 mm; instar II, length 0.31–0.33 mm, height 0.19–0.22 mm; adult males length 0.36–0.39 mm, height 0.22–0.24 mm.</p> <p> Our data on morphology of <i>Alona salina</i> fully agree with those in the previous reports (Alonso 1990, 1996) with one exception. Alonso (1996) mistakingly reported that the antenna of <i>A. salina</i> lack seta on the middle segment of exopodite. This seta is present. The morphology of ephippium of <i>A. salina</i> agrees with that reported by Vandekerkhove et al. (2004).</p> <p> <b>Distribution and ecology</b>. <i>A. salina</i> is known from permanent and temporary subsaline and saline water bodies on the Iberian Peninsula. Alonso (1996) considers it an Iberian endemic, typical of the Spanish endorheic systems. According to Boronat <i>et al.</i> (2001), it occurs at the wide diapason of salinities ranging from 5.7 to more that 100 mg /l. In the Iberian Peninsula, <i>A salina</i> coexists with halo-tolerant cladocerans namely <i>Daphnia magna,</i> <i>Daphnia akinsoni</i> Baird, 1859, <i>Moina brachiata</i> and <i>Dunhevedia crassa</i> King, 1853, but also with true halophyle cladocerans such as <i>Moina salina</i> and <i>Daphnia mediterranea</i> Alonso, 1985 (Alonso 1998).</p>Published as part of <i>Sinev, Artem Y., Alonso, Miguel & Sheveleva, Natalia G., 2009, New species of Alona from South-East Russia and Mongolia related to Alona salina Alonso, 1996 (Cladocera: Anomopoda: Chydoridae), pp. 1-23 in Zootaxa 2326</i> on pages 15-20, DOI: <a href="http://zenodo.org/record/192078">10.5281/zenodo.192078</a>
TWO-PHOTON SPECTROSCOPY OF THE AND STATES OF
No full text Research supported by AFOSR K. Hoshiba et al. J. Phys. B 18, 1.875 (1985). T. Sakai et al., J. Phys. B. 21, 229 (1988).Author Institution: Molecular Physics Laboratory, SRI InternationalThe and states of are excited from the ground by two photons near 207 nm and detected by vuv fluorescence or by ionization by a third photon. The laser source for these measurements is an excimer-pumped dye laser operating with PBBO dye at 415 nm. This light is doubled in a crystal and focused into a cell containing a mixture of in He. The uv wavelengths were calibrated against the (3.0) band in NO, which was calibrated against in the visible. Vibrational levels were observed in the state and in the state, based on the previous electron-impact , and partially resolved rotationally (the effective excitation linewidth is ). These assignments are supported by simulations of the two-photon excitation spectra. Although the fluorescence has not yet been spectrally resolved, we believe that it arises predominantly from the triplet state even when the singlet is initially excited. In the latter case, the fluorescence is temporally delayed, and increases in intensity as the He density is increased. The two-phonon excitation scheme we have developed should be useful in investigating the kinetics of the 158 nm laser, which is believed to arise from a transition from the outer well of the state to a weakly bound state correlating to ground state atoms.$^{2}
Free product subgroups between Chevalley groups G(Φ,F) and G(Φ,F[t])
No full textAbstractWe investigate subgroups of a Chevalley group G=G(Φ,A) over a ring A, containing its elementary subgroup E=E(Φ,F) over a subring F⊆A. Assume that the root system Φ is simply laced and A=F[t] is a polynomial ring. We show that if G is of adjoint type, then there exists an element g∈E(Φ,A) such that 〈g,E(Φ,F)〉=〈g〉*E(Φ,F), where 〈X〉 denotes the subgroup, generated by a set X, and * stands for the free product.It follows that under the above assumptions the lattice L=L(E,G) is not standard. Moreover, combining the above result with theorems of Nuzhin and the author one obtains a necessary and sufficient condition for L to be standard provided that A and F are fields of characteristic not 2 and Φ≠G2
The Harmonic Picture of Nuclear Mean Kinetic Energies in Heavy Water
No full textThis paper presents a study of the total mean kinetic energy, hEKi, and of
individual projections along a given molecular axis, hEKi ; for D and O nuclei in D2O, derived
using a harmonic model. Our theoretical approach assumes decoupling amongst translational,
rotational and vibrational modes. Resulting values of these dynamical quantities are discussed in
terms of the anisotropy of the quantum kinetic energy tensor, its relation to the local potential,
and deviations from the hypothesis of harmonicity and mode decoupling. Results are compared
with corresponding quantities obtained from Deep Inelastic Neutron Scattering experiments
performed on liquid and solid D2O, where the short-time dynamics and local environment of
D and O atoms were probed. The present study con rms an overall picture where even small
changes in the short-range environment of D and O nuclei have a strong in
uence on the quantum behaviour of heavy water
Neutron-resonance capture analysis on the VESUVIO spectrometer: Towards high-throughput material characterisation
No full textWe discuss the possibility to characterise nuclear quantum effects on the dynamics of heavy nuclei by means of neutron-resonance capture analysis on the VESUVIO spectrometer at ISIS. VESUVIO is equipped with yttrium-aluminium-perovskite gamma-sensitive detectors that can be used to record the Doppler-broadened line shape from a neutron-induced resonance in the neutron-energy range between 1 and 100 eV. The measurement of nuclear momentum distributions for heavy atoms using deep inelastic neutron scattering, the traditional technique for light-weight nuclei from hydrogen to fluorine, is currently severely limited by the resolution of the instrument. On the other hand, gamma-Dopplerimetry studies as the one presented here on gold allow for exquisite precision and short data-collection measurements, of the order of one hour, for the measurements, rendering the technique ideal for high-throughput investigations
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