2,471 research outputs found
Description of two new species of Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) from the Western Ghats of Kerala, India
No full textCyriac, Vivek Philip, Johny, Alex, Umesh, P. K., Palot, Muhamed Jafer (2018): Description of two new species of Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) from the Western Ghats of Kerala, India. Zootaxa 4459 (1): 85-100, DOI: 10.11646/zootaxa.4459.1.
Am grünen Strauch der Welt: Parabel
No full textAt last six years later I have had a chance to enjoy this lovely little -- and apparently quite famous -- parable. A man finds a camel chasing him. He arrives at a well and climbs a tree. Soon he looks down into the well and sees a dragon with mouth open waiting for him to fall. In the meantime, two mice, one white and one black, gnaw away on his tree. At some point their efforts will doom him. In the midst of all this threat, the man sees some berries and enjoys them. Rückert lays out the parable. We are all the man. The dragon is death. The camel is life's Angst und Not. The mice are day and night. The point: enjoy berries while you can! Du bist's, der zwischen Tod und Leben/am gruenen Strauch der Welt musst schweben. One page has a pleasant little three-tone illustration of the man hanging onto the bush for dear life!Language note: GermanVon Friedrich Rücker
FIGURE 1 in Description of two new species of Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) from the Western Ghats of Kerala, India
No full textFIGURE 1. Holotype of Cnemaspis maculicollis sp. nov. A. dorsal view; B. ventral view.Published as part of Cyriac, Vivek Philip, Johny, Alex, Umesh, P. K. & Palot, Muhamed Jafer, 2018, Description of two new species of Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) from the Western Ghats of Kerala, India, pp. 85-100 in Zootaxa 4459 (1) on page 87, DOI: 10.11646/zootaxa.4459.1.3, http://zenodo.org/record/145839
Medium modifications of hadron properties and partonic processes
No full textAlso published as a book chapter: New Insights into the Structure of Matter: The First Decade of Science at Jefferson Lab, 2011: Ch. 11Chiral symmetry is one of the most fundamental symmetries in QCD. It is closely connected to hadron properties in the nuclear medium via the reduction of the quark condensate , manifesting the partial restoration of chiral symmetry. To better understand this important issue, a number of Jefferson Lab experiments over the past decade have focused on understanding properties of mesons and nucleons in the nuclear medium, often benefiting from the high polarization and luminosity of the CEBAF accelerator. In particular, a novel, accurate, polarization transfer measurement technique revealed for the first time a strong indication that the bound proton electromagnetic form factors in 4He may be modified compared to those in the vacuum. Second, the photoproduction of vector mesons on various nuclei has been measured via their decay to e+ e- to study possible in-medium effects on the properties of the ρ meson. In this experiment, no significant mass shift and some broadening consistent with expected collisional broadening for the ρ meson has been observed, providing tight constraints on model calculations. Finally, processes involving in-medium parton propagation have been studied. The medium modifications of the quark fragmentation functions have been extracted with much higher statistical accuracy than previously possible. © Published under licence by IOP Publishing Ltd.W. K. Brooks, S. Strauch and K. Tsushim
2ND-ORDER RAMAN-SPECTRA OF DIAMOND FROM AB-INITIO PHONON CALCULATIONS
No full textThe second-order Raman spectra of diamond and silicon have been calculated using ab initio phonons and phenomenological polarizability coefficients. The sharp peak in the spectrum of diamond near the two-phonon cutoff is explained by a maximum in the vibrational density of states; this maximum originates from the uppermost phonon branch whose frequencies are calculated to have a minimum at the Brillouin-zone center. This frequency minimum as well as the sharp Raman peak are unique to diamond and do not occur for the other group-IV semiconductors. In our calculation based on harmonic ab initio lattice dynamics neither two-phonon bound states nor polarizability matrix element effects are needed to explain the peak, and we feel that the longstanding controversy about its origin has been resolved
Supplementary_Tables - Effect of Mode of Conception on Maternal Serum Relaxin, Creatinine, and Sodium Concentrations in an Infertile Population
No full textSupplementary_Tables for Effect of Mode of Conception on Maternal Serum Relaxin, Creatinine, and Sodium Concentrations in an Infertile Population by Frauke von Versen-Höynck, Nairi K. Strauch, Jing Liu, Yueh-Yun Chi, Maureen Keller-Woods, Kirk P. Conrad, and Valerie L. Baker in Reproductive Sciences</p
AB-INITIO LATTICE-DYNAMICS OF DIAMOND
No full textWe present a first principles calculation of lattice dynamical properties of diamond. Our calculations have been performed using density-functional perturbation theory together with plane-wave expansion and nonlocal pseudopotentials. As a first step we have evaluated the equilibrium structure of diamond via the minimization of the total energy. Then, harmonic phonon dispersion curves and phonon eigenvectors have been evaluated within the linear-response framework. As a by-product of the calculation we have also obtained the internal-strain parameter. Furthermore, we have also tested the validity of the ab initio calculation for describing properties beyond the harmonic approximation. Using the quasiharmonic approximation we have calculated the thermal expansion coefficient and the mode Gruneisen parameter dispersion curves. Where experimental data are available, good agreement is found with our theoretical predictions
Intensive geochemical sampling of fumarolic gas discharges at Mombacho Volcano (Nicaragua): evidences of magmatic gas species and implication for a volcanic surveillance
No full textDistribution functions of the sequence phi(n)/n, n in (k,k+N]
No full textInternational audienceIt is well known that the sequence , n=1,2,... has a singular asymptotic distribution function. P. Erdös in 1946 found a sufficient condition on the sequence of intervals (k,k+N], such that phi(n)/n, n in (k,k+N], has the same singular function. In this note we prove a sufficient and necessary condition. For simplifying the necessary condition we express the sum \sum_{k n*k+N(!(n) ¡ log logN)2, where !(n) is the number of di®erent primes divided n
Distribution functions of the sequence phi(n)/n, n in (k,k+N]
No full textInternational audienceIt is well known that the sequence , n=1,2,... has a singular asymptotic distribution function. P. Erdös in 1946 found a sufficient condition on the sequence of intervals (k,k+N], such that phi(n)/n, n in (k,k+N], has the same singular function. In this note we prove a sufficient and necessary condition. For simplifying the necessary condition we express the sum \sum_{k n*k+N(!(n) ¡ log logN)2, where !(n) is the number of di®erent primes divided n
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