cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Observation of p-wave Threshold Law Using Evaporatively Cooled Fermionic Atoms
Creators: name: DeMarco, B.
name: Bohn, J. L.
name: Burke,, J. P.
name: Holland, M.
name: Jin, D. S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We have measured independently both s-wave and p-wave cross-dimensional thermalization rates for ultracold potassium-40 atoms held in a magnetic trap. These measurements reveal that this fermionic isotope has a large positive s-wave triplet scattering length in addition to a low temperature p-wave shape resonance. We have observed directly the p-wave threshold law which, combined with the Fermi statistics, dramatically suppresses elastic collision rates at low temperatures. In addition, we present initial evaporative cooling results that make possible these collision measurements and are a precursor to achieving quantum degeneracy in this neutral, low-density Fermi system.
description: 5 pages, 3 figures, 1 table
Additional file 1: of The validity of the patient health Questionnaire-9 to screen for depression in patients with type-2 diabetes mellitus in non-communicable diseases clinics in Malawi
Creators: name: Udedi, Michael
name: Adamson Muula
name: Stewart, Robert
name: Pence, Brian
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology
subject: Science Policy
subject: 60506 Virology

description: The Chichewa Patient Health Questionnaire (PHQ-9). (DOCX 18 kb)
Magnetized interstellar molecular clouds: II. The Large-Scale Structure and Dynamics of Filamentary Molecular Clouds
Creators: name: Li, Pak Shing
name: Klein, Richard I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We perform ideal MHD high resolution AMR simulations with driven turbulence and self-gravity and find that long filamentary molecular clouds are formed at the converging locations of large-scale turbulence flows and the filaments are bounded by gravity. The magnetic field helps shape and reinforce the long filamentary structures. The main filamentary cloud has a length of ~4.4 pc. Instead of a monolithic cylindrical structure, the main cloud is shown to be a collection of fiber/web-like sub-structures similar to filamentary clouds such as L1495. Unless the line-of-sight is close to the mean field direction, the large-scale magnetic field and striations in the simulation are found roughly perpendicular to the long axis of the main cloud, similar to 1495. This provides strong support for a large-scale moderately strong magnetic field surrounding L1495. We find that the projection effect from observations can lead to incorrect interpretations of the true three-dimensional physical shape, size, and velocity structure of the clouds. Helical magnetic field structures found around filamentary clouds that are interpreted from Zeeman observations can be explained by a simple bending of the magnetic field that pierces through the cloud. We demonstrate that two dark clouds form a T-shape configuration which are strikingly similar to the Infrared dark cloud SDC13 leading to the interpretation that SDC13 results from a collision of two long filamentary clouds. We show that a moderately strong magnetic field (M_A ~ 1) is crucial for maintaining a long and slender filamentary cloud for a long period of time ~0.5 million years.
description: 21 pages, 21 figure
Additional file 9; of The evolution of gene regulatory networks controlling Arabidopsis thaliana L. trichome development
Creators: name: Doroshkov, Alexey
name: Konstantinov, Dmitrii
name: Afonnikov, Dmitrij
name: Gunbin, Konstantin
Publisher: name: figshare
Year: 2019
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: Developmental Biology
subject: Plant Biology
subject: Cardiology

description: Figure S25: PhyML phylogenetic relations and composition of domains for AT2G02480 homologues of representative plant species. Figure S26: PhyML phylogenetic relations and composition of domains for AT2G22640 homologues of representative plant species. Figure S27: PhyML phylogenetic relations and composition of domains for AT2G27300 homologues of representative plant species. Figure S28: PhyML phylogenetic relations and composition of domains for AT2G27600 homologues of representative plant species. Figure S29: PhyML phylogenetic relations and composition of domains for AT2G31300 homologues of representative plant species. Figure S30: PhyML phylogenetic relations and composition of domains for AT2G33540 homologues of representative plant species. Figure S31: PhyML phylogenetic relations and composition of domains for AT2G35110 homologues of representative plant species. Figure S32: PhyML phylogenetic relations and composition of domains for AT2G39940 homologues of representative plant species. Figure S33: PhyML phylogenetic relations and composition of domains for AT2G42260 homologues of representative plant species. Figure S34: PhyML phylogenetic relations and composition of domains for AT2G46225; AT5G42030; AT5G24310 homologues of representative plant species. (PDF 6990 kb)
Free-volume kinetic models of granular matter
Creators: name: Sellitto, M.
name: Arenzon, J. J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that the main dynamical features of granular media can be understood by means of simple models of fragile-glass forming liquid provided that gravity alone is taken into account. In such lattice-gas models of cohesionless and frictionless particles, the compaction and segregation phenomena appear as purely non-equilibrium effects unrelated to the Boltzmann-Gibbs measure which in this case is trivial. They provide a natural framework in which slow relaxation phenomena in granular and glassy systems can be explained in terms of a common microscopic mechanism given by a free-volume kinetic constraint.
description: 4 pages, 6 figures
Recurrence of chronic venous ulcers on the basis of clinical, etiologic, anatomic, and pathophysiologic criteria and air plethysmography
Creators: name: Keagy, Blair A.
name: Marston, William A.
name: Young, Mary L.
name: Mendes, Robert R.
name: Daniel, Patty F.
name: Owens, Lewis V.
name: Farber, Mark A.
name: McDaniel, Huey B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: AbstractIntroduction: Leg ulcers associated with chronic venous insufficiency (CVI) frequently recur after healing. The risk of recurrence has not been well defined for patients in different anatomic and hemodynamic groups. We reviewed the risk of ulcer recurrence on the basis of clinical, etiologic, anatomic, and pathophysiologic criteria and hemodynamic characteristics of the affected limb as assessed with air plethysmography (APG). Methods: Ninety-nine limbs with class 6 CVI were assessed clinically and with standing duplex ultrasound scanning and APG for the definition of clinical, etiologic, anatomic, and pathophysiologic criteria. Leg ulcers were treated with high-pressure compression protocols. Surgical correction of venous abnormalities was offered to patients with appropriate conditions. After ulcer healing, the limbs were placed in compressive garments and followed at 6-month intervals for ulcer recurrence. Results: The mean patient age was 54.3 years, and 46% of the patients were female. Corrective venous surgery was performed in 37 limbs. The mean follow-up time for all 99 limbs was 28 months. The ulcer recurrence rate with life table was 37% ± 6% at 3 years and 48% ± 10% at 5 years. The patients who underwent venous surgery had a significantly lower recurrence rate (27% ± 9% at 48 months) than did those patients who had not undergone surgery (67% ± 8% at 48 months; P =.005). The patients with deep venous insufficiency (DVI; n=51) had significantly higher recurrence rates (66% ± 8% at 48 months) than did the patients without DVI (n = 48; 29% ± 9% at 48 months; P =.006). This difference was significant even after accounting for the effects of surgery (P =.03).The hazard ratio of ulcer recurrence increases by 14% for every unit increase in the venous filling index (VFI; P =.001). This remains significant even after accounting for the effects of surgery (P =.001). The combination of DVI and a VFI of more than 4 mL/s yields a risk of ulcer recurrence of 43% ± 9% at 1 year and 60% ± 10% at 2 years. Conclusion: Leg ulcers associated with CVI have a high rate of recurrence. Ulcer recurrence is significantly increased in patients with DVI and in patients who do not have venous abnormalities corrected surgically. The VFI obtained from APG is useful in the prediction of increased risk for recurrence, particularly in association with anatomic data. (J Vasc Surg 2002;35:723-8.)
Persistent currents in mesoscopic rings and boundary conformal field theory
Creators: name: Jaimungal, S.
name: Amin, M. H. S.
name: Rose, G.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A tight-binding model of electron dynamics in mesoscopic normal rings is studied using boundary conformal field theory. The partition function is calculated in the low energy limit and the persistent current generated as a function of an external magnetic flux threading the ring is found. We study the cases where there are defects and electron-electron interactions separately. The same temperature scaling for the persistent current is found in each case, and the functional form can be fitted, with a high degree of accuracy, to experimental data.
description: 6 pages, 4 enclosed postscript figures
BO'LAJAK INFORMATIKA O'QITUVCHILARIDA TASHKILIY-PEDAGOGIK KOMPETENTLIKNING MEZON VA KO'RSATKISHLARI
Creators: name: Muxlisov, Sodiqjon
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqoladi Axborot texnologiyalari va kommunikatsiyalari sohasida boshqaruv tizimini yanada takomillashtirish, yelektron davlat xizmatlari va telekommunikatsiya xizmatlari spektrini kengaytirish, telekommunikatsiya infratuzilmasini rivojlantirish maqsadida axborot texnologiyalari va kommunikatsiyalarini rivojlantirish va qo‘llash sohasida yagona davlat siyosatini ishlab shiqish va amalga oshirish hamda munosabatlarni tartibga solish kabi vazifalarning belgilab berilganligi informatika o‘qituvshilarining kasbiy tayyorgarligi mazmuni, bo‘lajak informatika o‘qituvshilarida tashkiliy-pedagogik kompetentlikni tadqiq yetish masalalari haqida ilmiy tahlillar va nazariy ma’lumotlar bayon etilgan.
Slow crossover in YbXCu4 intermediate valence compounds
Creators: name: Lawrence, J. M.
name: Riseborough, P. S.
name: Booth, C. H.
name: Sarrao, J. L.
name: Thompson, J. D.
name: Osborn, R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We compare the results of measurements of the magnetic susceptibility Chi(T), the linear coefficient of specific heat Gamma(T)=C(T)/T and 4f occupation number nf(T) for the intermediate valence compounds YbXCu4 (X = Ag, Cd, In, Mg, Tl, Zn) to the predictions of the Anderson impurity model, calculated in the non-crossing approximation (NCA). The crossover from the low temperature Fermi liquid state to the high temperature local moment state is substantially slower in the compounds than predicted by the NCA; this corresponds to the ''protracted screening'' recently predicted for the Anderson Lattice. We present results for the dynamic susceptibility, measured through neutron scattering experiments, to show that the deviations between theory and experiment are not due to crystal field effects, and we present x-ray-absorption fine-structure (XAFS) results that show the local crystal structure around the X atoms is well ordered, so that the deviations probably do not arise from Kondo Disorder. The deviations may correlate with the background conduction electron density, as predicted for protracted screening.
description: Submitted to Physical Review B on June 7, 2000, accepted for publication November 2, 2000. Changes to the original manuscript include: 1) a discussion of the relation of the slow crossover to the conduction electron density; 2) a discussion of the relation of the reported results to earlier photoemission results; and, 3) minor editorial changes
Dynamical properties of the one-dimensional Holstein model
Creators: name: Zhang, Chunli
name: Jeckelmann, Eric
name: White, Steven R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spectral weight functions and the optical conductivity of the Holstein model are studied on a one-dimensional six-site lattice with periodic boundary conditions for three different electron concentrations: a single electron, two electrons of opposite spins, and half filling. A density matrix approach is used to obtain an optimal phonon basis and to truncate the phonon Hilbert space without significant loss of accuracy. This approach allows us to calculate spectral functions for electrons dressed locally by the optimal phonons as well as for bare electrons. We obtain evidence for a smooth crossover from quasi-free electrons to an heavy itinerant small polaron (single-electron case) or bipolaron (two-electron case) as the electron-phonon coupling strength increases. At half filling we observe a crossover from a quasi-free-electron ground state to a quasi-degenerate Peierls charge-density-wave ground state for a finite electron-phonon coupling. This crossover is marked by an abrupt drop of the Drude weight which is vanishingly small in the Peierls phase.
description: 14 pages, 11 eps figures
Stabilizing an Attractive Bose-Einstein Condensate by Driving a Surface Collective Mode
Creators: name: Pattanayak, Arjendu K.
name: Gammal, Arnaldo
name: Sackett, Charles A.
name: Hulet, Randall G.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Bose-Einstein condensates of $^7$Li have been limited in number due to attractive interatomic interactions. Beyond this number, the condensate undergoes collective collapse. We study theoretically the effect of driving low-lying collective modes of the condensate by a weak asymmetric sinusoidally time-dependent field. We find that driving the radial breathing mode further destabilizes the condensate, while excitation of the quadrupolar surface mode causes the condensate to become more stable by imparting quasi-angular momentum to it. We show that a significantly larger number of atoms may occupy the condensate, which can then be sustained almost indefinitely. All effects are predicted to be clearly visible in experiments and efforts are under way for their experimental realization.
description: 4 ReVTeX pages + 2 postscript figures
Reduction of the Superfluid Density in the Vortex-Liquid Phase of Bi2Sr2CaCu2Oy
Creators: name: Hanaguri, Tetsuo
name: Tsuboi, Takashi
name: Tsuchiya, Yoshishige
name: Sasaki, Ken-ichi
name: Maeda, Atsutaka
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In-plane complex surface impedance of a Bi2Sr2CaCu2Oy single crystal was measured in the mixed state at 40.8 GHz.The surface reactance, which is proportional to the real part of the effective penetration depth, increased rapidly just above the first-order vortex-lattice melting transition field and the second magnetization peak field.This increase is ascribed to the decrease in the superfluid density rather than the loss of pinning.This result indicates that the vortex melting transition changes the electronic structure as well as the vortex structure.
description: 4 pages, 4 figures, accepted for publication in Phys. Rev. Lett
Additional file 7: of The evolution of gene regulatory networks controlling Arabidopsis thaliana L. trichome development
Creators: name: Doroshkov, Alexey
name: Konstantinov, Dmitrii
name: Afonnikov, Dmitrij
name: Gunbin, Konstantin
Publisher: name: figshare
Year: 2019
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: Developmental Biology
subject: Plant Biology
subject: Cardiology

description: Figure S5: PhyML phylogenetic relations and composition of domains for AT1G01510 homologues of representative plant species. Figure S6: PhyML phylogenetic relations and composition of domains for AT1G01520 homologues of representative plant species. Figure S7: PhyML phylogenetic relations and composition of domains for AT1G03060 homologues of representative plant species. Figure S8: PhyML phylogenetic relations and composition of domains for AT1G05230; AT4G21750; AT4G04890; AT1G79840 homologues of representative plant species. Figure S9: PhyML phylogenetic relations and composition of domains for AT1G67030; AT3G58070; AT2G41940; AT5G06650; AT1G10480; AT1G68360 homologues of representative plant species. Figure S10: PhyML phylogenetic relations and composition of domains for AT1G13180 homologues of representative plant species. Figure S11: PhyML phylogenetic relations and composition of domains for AT1G66350; AT5G17490; AT3G03450; AT2G01570; AT1G14920 homologues of representative plant species. Figure S12: PhyML phylogenetic relations and composition of domains for AT1G17920; AT1G73360 homologues of representative plant species. Figure S13: PhyML phylogenetic relations and composition of domains for AT1G19835 homologues of representative plant species. Figure S14: PhyML phylogenetic relations and composition of domains for AT1G25540 homologues of representative plant species. (PDF 10138 kb)
Additional file 8: of The evolution of gene regulatory networks controlling Arabidopsis thaliana L. trichome development
Creators: name: Doroshkov, Alexey
name: Konstantinov, Dmitrii
name: Afonnikov, Dmitrij
name: Gunbin, Konstantin
Publisher: name: figshare
Year: 2019
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: Developmental Biology
subject: Plant Biology
subject: Cardiology

description: Figure S15: PhyML phylogenetic relations and composition of domains for AT1G29170; AT2G34150; AT2G38440 homologues of representative plant species. Figure S16: PhyML phylogenetic relations and composition of domains for AT2G33385; AT1G30825 homologues of representative plant species. Figure S17: PhyML phylogenetic relations and composition of domains for AT1G33240 homologues of representative plant species. Figure S18: PhyML phylogenetic relations and composition of domains for AT1G60430 homologues of representative plant species. Figure S19: PhyML phylogenetic relations and composition of domains for AT1G64690 homologues of representative plant species. Figure S20: PhyML phylogenetic relations and composition of domains for AT1G65470 homologues of representative plant species. Figure S21: PhyML phylogenetic relations and composition of domains for AT5G38110; AT1G66740 homologues of representative plant species. Figure S22: PhyML phylogenetic relations and composition of domains for AT1G69490 homologues of representative plant species. Figure S23: PhyML phylogenetic relations and composition of domains for AT1G75950 homologues of representative plant species. Figure S24: PhyML phylogenetic relations and composition of domains for AT1G80350 homologues of representative plant species. (PDF 7989 kb)
Mechanical back-reaction effect of the dynamical Casimir emission
Creators: name: Butera, Salvatore
name: Carusotto, Iacopo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider an optical cavity enclosed by a freely moving mirror attached to a spring and we study the quantum friction effect exerted by the dynamical Casimir emission on the mechanical motion of the mirror. Observable signatures of this simplest example of back-reaction effect are studied in both the ring-down oscillations of the mirror motion and in its steady-state motion under a monochromatic force. Analytical expressions are found in simple yet relevant cases and compared to complete numerical solution of the master equation. A circuit-QED device allowing for experimental observation of the effect with state-of-the-art technology is proposed and theoretically characterized.
description: 18 pages, 7 figures; comments are welcome
Reply to the comment of Chudnovsky&Garanin on "Spin relaxation in Mn12-acetate"
Creators: name: Leuenberger, Michael N.
name: Loss, Daniel
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Reply to the comment of E.M. Chudnovsky and D.A. Garanin on Europhys. Lett. 46, 692 (1999).
description: 2 pages, Latex (europhys.sty)
Treatment of superficial and perforator venous incompetence without deep venous insufficiency: is routine perforator ligation necessary?
Creators: name: Mendes, Robert R
name: Keagy, Blair A
name: Farber, Mark A
name: Marston, William A
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: Abstract Purpose We investigated whether routine ligation of incompetent perforator veins is necessary in treatment of symptomatic chronic venous insufficiency (CVI) due to combined superficial and perforator vein incompetence, without deep venous insufficiency. Methods This was a retrospective review of prospectively collected data. Twenty-four limbs with both superficial and perforator venous incompetence but no deep venous insufficiency were identified at venous duplex scanning. Air plethysmography (APG) was performed preoperatively, to obtain venous volume (VV), venous filling index (VFI), ejection fraction (EF), and residual volume fraction (RVF) of the affected limb. Saphenous vein stripping from the groin to knee and powered transilluminated phlebectomy for varicosity ablation were performed in all patients. Postoperatively, all patients underwent duplex scanning and APG to determine the status of the perforator veins and hemodynamic improvement from surgery. Results Average patient age was 55.8 years; 62% of patients were women. CVI was class 3 in 4 limbs, class 4 in 12 limbs, and class 5 and class 6 in 4 limbs each. Postoperative duplex scans demonstrated that 71% of previously incompetent perforator vessels were now competent or absent. Significant improvement in all APG values was documented after superficial surgery. VFI improved from 6.0 ± 2.9 preoperatively to 2.2 ± 1.3 after surgery (P < .001); EF improved from 56.3 ± 18 to 62 ± 21 (P = .02); and RVF improved from 40.1 ± 19 to 28.3 ± 18 (P = .009). Mean preoperative symptom score (5.3 ± 1.9) was significantly improved at mean follow-up of 18.3 months (1.4 ± 1.2; P < .001). Conclusion Patients with superficial and perforator vein incompetence and a normal deep venous system experienced significant improvement in APG-measured hemodynamic parameters and clinical symptom score after superficial ablative surgery alone. This suggests that ligation of the perforator veins can be reserved for patients with persistent incompetent perforator vessels, with abnormal hemodynamic parameters or continued symptoms after superficial ablative surgery.
Theory of Colossal Magnetoresistance in Doped Manganites
Creators: name: Alexandrov, A. S.
name: Bratkovsky, A. M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The exchange interaction of polaronic carriers with localized spins leads to a ferromagnetic/paramagnetic transition in doped charge-transfer insulators with strong electron-phonon coupling. The relative strength of the exchange and electron-phonon interactions determines whether the transition is first or second order. A giant drop in the number of current carriers during the transition, which is a consequence of local bound pair (bipolaron) formation in the paramagnetic phase, is extremely sensitive to an external magnetic field. Below the critical temperature of the transition, $T_c$, the binding of the polarons into immobile pairs competes with the ferromagnetic exchange between polarons and the localized spins on Mn ions, which tends to align the polaron moments and, therefore, breaks up those pairs. The number of carriers abruptly increases below $T_c$ leading to a sudden drop in resistivity. We show that the carrier density collapse describes the colossal magnetoresistance of doped manganites close to the transition. Below $T_c$, transport occurs by polaronic tunneling, whereas at high temperatures the transport is by hopping processes. The transition is accompanied by a spike in the specific heat, as experimentally observed. The gap feature in tunneling spectroscopy is related to the bipolaron binding energy, which depends on the ion mass. This dependence explains the giant isotope effect of the magnetization and resistivity upon substitution of $^{16}$O by $^{18}$O. It is shown also that the localization of polaronic carriers by disorder {\em cannot} explain the observed huge sensitivity of the transport properties to the magnetic field in doped manganites.
description: 14 pages, REVTeX 3.0, 7 EPS-figures embedded via epsf
Natural history of limbs with arterial insufficiency and chronic ulceration treated without revascularization
Creators: name: Armstrong, Brian
name: Fulton, Joseph J.
name: Davies, Stephen W.
name: Marston, William A.
name: Mendes, Robert C.
name: Keagy, Blair A.
name: Farber, Mark A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: OBJECTIVES: The natural history of limbs affected by ischemic ulceration is poorly understood. In this report, we describe the outcome of limbs with stable chronic leg ulcers and arterial insufficiency that were treated with wound-healing techniques in patients who were not candidates for revascularization.

METHODS: A prospectively maintained database of limb ulcers treated at a comprehensive wound center was used to identify patients with arterial insufficiency, defined as an ankle-brachial index (ABI) <0.7 or a toe pressure <50 mm Hg. Patients were treated without revascularization when medical comorbidity or anatomic considerations did not allow revascularization with acceptable risk. Ulcers were treated with a protocol emphasizing pressure relief, débridement, infection control, and moist wound healing. Risk factors analyzed for their affect on healing and amputation risk included age, gender, diabetes mellitus, chronic renal insufficiency (serum creatinine > 2.5 mg/dL), severity of ischemia measured by ABI or toe pressure, wound grade, wound size, and wound location.

RESULTS: Between January 1999 and March 2005, 142 patients with 169 limbs having arterial insufficiency and full-thickness ulceration were treated without revascularization. Mean patient age was 70.8 +/- 4.5. Diabetes mellitus was present in 70.4% of limbs and chronic renal insufficiency in 27.8%. Toe amputations or other foot-sparing procedures were performed in 28% of limbs. Overall, limb loss occurred in 37 patients. By life-table analysis, 19% of limbs required amputation < or =6 months of initial treatment and 23% at 12 months. Complete wound closure was achieved in 25% by 6 months and in 52% by 12 months. Statistical analysis showed a correlation between ABI and the risk of limb loss. In patients with an ABI <0.5, 28% and 34% of limbs experienced limb loss at 6 and 12 months, respectively, compared with 10% and 15% of limbs in patients with an ABI >0.5 (P = .01). The only risk factor associated with wound closure was initial wound size (P < .005).

CONCLUSIONS: Limb salvage can be achieved in most patients with arterial insufficiency and uncomplicated chronic nonhealing limb ulcers using a program of wound management without revascularization. Healing proceeds slowly, however, requiring more than a year in many cases. Patients with an ABI <0.5 are more likely to require amputation. Interventions designed to improve outcomes in critical limb ischemia should stratify outcomes based on hemodynamic data and should include a comparative control group given the natural history of ischemic ulcers treated in a dedicated wound program.
The association between elevated ankle systolic pressures and peripheral occlusive arterial disease in diabetic and nondiabetic subjects
Creators: name: Ho, Elena
name: Aboyans, Victor
name: Denenberg, Julie O.
name: Criqui, Michael H.
name: Natarajan, Loki
name: Ho, Lindsey A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: No Abstract.
Successive transitions and intermediate chiral phase in a superfuilid ^3He film
Creators: name: Kawamura, Hikaru
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Superfluidity ordering of thin ^3He films is studied by Monte Carlo simulations based on a two-dimensional lattice spin model with Z_2\times U(1)\times SO(3) symmetry. Successive phase transitions with an intermediate `chiral' phase, in which the l-vector aligns keeping the phase of the condensate disordered, is found. Possible experiments to detect the successive transitions are discussed.
description: to appear in Phys. Rev. Letters
The importance of deep venous reflux velocity as a determinant of outcome in patients with combined superficial and deep venous reflux treated with endovenous saphenous ablation
Creators: name: Keagy, Blair
name: Mendes, Robert
name: Marston, William A.
name: Berndt, Daniel
name: Weiner, Meredith
name: Brabham, V. Wells
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: INTRODUCTION: Twenty to thirty percent of patients with symptomatic chronic venous insufficiency (CVI) are found to have combined superficial and deep venous reflux on duplex testing. It is currently unclear whether endovenous ablation (EVA) of the saphenous vein will result in correction of CVI without addressing the deep venous reflux. In this study, we examined deep venous reflux velocities to determine whether these would predict outcome after endovenous ablation.

METHODS: Patients with symptomatic CVI and both saphenous and deep venous reflux were identified using duplex ultrasonography. Reflux times and maximal reflux velocity (MRV) in each examined vein segment were determined. In each limb, the venous filling index (VFI) and the venous clinical severity score (VCSS) were obtained both before and after laser ablation of the great and/or small saphenous veins. Preoperative venous reflux velocities were correlated with improvement in VFI and VCSS after ablation.

RESULTS: 75 limbs with both deep and superficial venous reflux were identified. Seventy-five percent of limbs were CEAP clinical class 3 or 4 and the other 25% were class 5 or 6. Forty limbs demonstrated deep venous reflux in the femoral and/or popliteal vein. After EVA, significant improvements in VFI and VCSS were seen, but this depended on MRV in the deep vein. When MRV in the popliteal or femoral vein was <10 cm/sec, limbs had significantly better outcomes than limbs with MRV >10 cm/sec as measured by both VFI (P = .01) and VCSS (P = .03). In 35 limbs, deep venous reflux was identified only in the CFV. In this group, the average pre-procedure VFI (6.54 +/- 3.9 cc/sec) decreased significantly to 2.2 +/- 1.9 cc/sec (P < .001) and the VCSS improved markedly from 7.0 +/- 2.8 to 1.3 +/- 1.4 (P < .001).

CONCLUSIONS: EVA of the saphenous veins can be performed in patients with concomitant deep venous insufficiency with hemodynamic and clinical improvement in most cases. Patients with popliteal or femoral reflux velocities lower than 10 cm/sec usually experience marked improvement in both the VFI and the VCSS. Patients with femoral or popliteal reflux velocities greater than 10 cm/sec have a high incidence of persistent symptoms after EVA.
Paraselinus Kamiński 2013, gen. nov.
Creators: name: Kamiński, Marcin Jan
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Tenebrionidae
Paraselinus

description: Paraselinus gen. nov.
 Type species. Paraselinus iwani sp. nov., here designated.
 Diagnosis. The gula transformed into a stridulatory organ (Fig. 2) and the aedeagal tegmen with a pair of clavae (Fig. 6) place Paraselinus gen. nov. in the subtribe Platynotina.
 Paraselinus gen. nov. is similar to Aberlencus, Angolositus Koch, 1955, Lechius Iwan, 1995, Upembarus Koch, 1956 and Pseudoselinus due to total wing loss, transverse antennomeres 7–11 and the specific prothoracic structure (lack of basal depressions on the pronotal disc). It differs from Aberlencus and Upembarus by having a completely bordered 5 th abdominal ventrite (Fig. 3). Moreover, it can be distinguished from Upembarus by having the elytral base fused with the humerus (Figs 8, 9). A lack of indentation of the apical part of the mentum (Figs 2, 10), absence of a groove below the ventral margin of the eye (Fig. 12) and lack of sclerites in the bursa copulatrix (Figs 14–15), separates Paraselinus gen. nov. from Angolositus, Lechius and Pseudoselinus, respectively (IWAN 2002b, IWAN & KAMIŃSKI 2012, KAMIŃSKI 2012). Additionally, Paraselinus gen. nov. can be easily distinguished from the Pseudoselinus by the narrow intercoxal process of the prosternum (Figs 4, 7) and non-elongate mid part of the mentum apically (Figs 2, 11). Paraselinus gen. nov. differs from all above mentioned genera by having the basal half of the lateral pronotal margins parallel.
 Description. See description for Paraselinus iwani sp. nov.
 Etymology. A combination of para- (meaning “similar to”) and - selinus (the stem of some generic names within Platynotina), in reference to a morphological similarity of this new taxon to Pseudoselinus Iwan, 2002. Gender masculine.
description: Published as part of Kamiński, Marcin Jan, 2013, A new genus and species of the Afrotropical Platynotina from Tanzania (Coleoptera: Tenebrionidae: Pedinini), pp. 703-714 in Acta Entomologica Musei Nationalis Pragae 53 (2) on pages 705-707, DOI: 10.5281/zenodo.5740697
Possible f-wave superconductivity in Sr$_2$RuO$_4$?
Creators: name: Won, H.
name: Maki, K.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Until recently it has been believed that the superconductivity in Sr$_2$RuO$_4$ is described by p-wave pairing. However, both the recent specific heat and the magnetic penetration depth measurements on the purest single crystals of Sr$_2$RuO$_4$ appear to be explained more consistently in terms of f-wave superconductivity. In order to further this hypothesis, we study theoretically the thermodynamics and thermal conductivity of f-wave superconductors in a planar magnetic field. We find the simple expressions for these quantities when $H \ll H_{c2} $ and $T \ll T_{c}$, which should be readily accessible experimentally.
description: 6 pages, 2 figures
Gigahertz frequency antiferromagnetic resonance and strong magnon-magnon coupling in the layered crystal CrCl3
Creators: name: MacNeill, David
name: Hou, Justin T.
name: Klein, Dahlia R.
name: Zhang, Pengxiang
name: Jarillo-Herrero, Pablo
name: Liu, Luqiao
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report broadband microwave absorption spectroscopy of the layered antiferromagnet CrCl3. We observe a rich structure of resonances arising from quasi-two-dimensional antiferromagnetic dynamics. Due to the weak interlayer magnetic coupling in this material, we are able to observe both optical and acoustic branches of antiferromagnetic resonance in the GHz frequency range and a symmetry-protected crossing between them. By breaking rotational symmetry, we further show that strong magnon-magnon coupling with large tunable gaps can be induced between the two resonant modes.
Stability of the monoclinic phase in the ferroelectric perovskite PbZr(1-x)TixO3
Creators: name: Noheda, B.
name: Cox, D. E.
name: Shirane, G.
name: Guo, R.
name: Jones, B.
name: Cross, L. E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent structural studies of ferroelectric PbZr(1-x)TixO3 (PZT) with x= 0.48, have revealed a new monoclinic phase in the vicinity of the morphotropic phase boundary (MPB), previously regarded as the the boundary separating the rhombohedral and tetragonal regions of the PZT phase diagram. In the present paper, the stability region of all three phases has been established from high resolution synchrotron x-ray powder diffraction measurements on a series of highly homogeneous samples with 0.42 <=x<= 0.52. At 20K the monoclinic phase is stable in the range 0.46 <=x<= 0.51, and this range narrows as the temperature is increased. A first-order phase transition from tetragonal to rhombohedral symmetry is observed only for x= 0.45. The MPB, therefore, corresponds not to the tetragonal-rhombohedral phase boundary, but instead to the boundary between the tetragonal and monoclinic phases for 0.46 <=x<= 0.51. This result provides important insight into the close relationship between the monoclinic phase and the striking piezoelectric properties of PZT; in particular, investigations of poled samples have shown that the monoclinic distortion is the origin of the unusually high piezoelectric response of PZT.
description: REVTeX file, 7 figures embedded
Xylocoris (Arrostelus) Kirkaldy 1906
Creators: name: Yamada, Kazutaka
name: Yasunaga, Tomohide
name: Artchawakom, Taksin
name: Sers
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Anthocoridae
Xylocoris

description: Subgenus Arrostelus Kirkaldy, 1906
 Diagnosis. Subgenus Arrostelus can be distinguished from other subgenera by a combination of the following characters: male tibial teeth always absent (Figs 16, 20); supracoxal area of metapleuron distinct and smooth (Figs 13, 15); copulatory site and cicatrices after copulation present on anterodorsal area of abdomen (CARAYON 1972a,b); and ectospermalege always absent.
 Remarks. Four species, X. flavipes, X. congoensis (Bergroth, 1905), X. hirsutus Carayon, 1961, and X. queenslandicus Gross, 1954 are now assigned to the subgenus Arrostelus (CARAYON 1972b, CASSIS & GROSS 1995). CARAYON (1972b) suggested that X. vicarius (Reuter, 1884) from western Nearctic and Colombia may be accommodated in a new subgenus, closely related to Arrostelus. At present, X. vicarius is tentatively placed in the subgenus Xylocoris (HENRY 1988, CARPINTERO 2002). Xylocoris ampoli sp. nov. described below is the second member of Arrostelus discovered from the Oriental Region.
description: Published as part of Yamada, Kazutaka, Yasunaga, Tomohide, Artchawakom, Taksin & Sers, 2013, The genus Xylocoris found from plant debris in Thailand, with description of a new species of the subgenus Arrostelus (Hemiptera: Heteroptera: Anthocoridae), pp. 493-504 in Acta Entomologica Musei Nationalis Pragae 53 (2) on page 495, DOI: 10.5281/zenodo.5740713
Additional file 6: of The evolution of gene regulatory networks controlling Arabidopsis thaliana L. trichome development
Creators: name: Doroshkov, Alexey
name: Konstantinov, Dmitrii
name: Afonnikov, Dmitrij
name: Gunbin, Konstantin
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Figure S4: A. PhyML phylogenetic relations and composition of domains for R3-MYB homologues of representative plant species. B. Evolutionary changes in protein structure of the R3-MYB homologous proteins being studied branch reflects from right to left: disorder (2 residue types), secondary structure (3 types), secondary structure (8 types), globule surface (3 residue types), rare (comparing with protein specific model) amino acid substitutions. Color scheme: black- outer branch (not analyzed); colours define branch lengths quartile: blue – Q1; green – Q2; orange –Q3; red –Q4. (PDF 3855 kb)
Texture variation adaptive image denoising with nonlocal PCA
Creators: name: Zhao, Wenzhao
name: Liu, Qiegen
name: Lv, Yisong
name: Qin, Binjie
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Image textures, as a kind of local variations, provide important information for human visual system. Many image textures, especially the small-scale or stochastic textures are rich in high-frequency variations, and are difficult to be preserved. Current state-of-the-art denoising algorithms typically adopt a nonlocal approach consisting of image patch grouping and group-wise denoising filtering. To achieve a better image denoising while preserving the variations in texture, we first adaptively group high correlated image patches with the same kinds of texture elements (texels) via an adaptive clustering method. This adaptive clustering method is applied in an over-clustering-and-iterative-merging approach, where its noise robustness is improved with a custom merging threshold relating to the noise level and cluster size. For texture-preserving denoising of each cluster, considering that the variations in texture are captured and wrapped in not only the between-dimension energy variations but also the within-dimension variations of PCA transform coefficients, we further propose a PCA-transform-domain variation adaptive filtering method to preserve the local variations in textures. Experiments on natural images show the superiority of the proposed transform-domain variation adaptive filtering to traditional PCA-based hard or soft threshold filtering. As a whole, the proposed denoising method achieves a favorable texture preserving performance both quantitatively and visually, especially for stochastic textures, which is further verified in camera raw image denoising.
Stationary-State Statistics of a Binary Neural Network Model with Quenched Disorder
Creators: name: Fasoli, Diego
name: Panzeri, Stefano
Publisher: name: arXiv
Year: 2018
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: We study the statistical properties of the stationary firing-rate states of a neural network model with quenched disorder. The model has arbitrary size, discrete-time evolution equations and binary firing rates, while the topology and the strength of the synaptic connections are randomly generated from known, generally arbitrary, probability distributions. We derived semi-analytical expressions of the occurrence probability of the stationary states and the mean multistability diagram of the model, in terms of the distribution of the synaptic connections and of the external stimuli to the network. Our calculations rely on the probability distribution of the bifurcation points of the stationary states with respect to the external stimuli, which can be calculated in terms of the permanent of special matrices, according to extreme value theory. While our semi-analytical expressions are exact for any size of the network and for any distribution of the synaptic connections, we also specialized our calculations to the case of statistically-homogeneous multi-population networks. In the specific case of this network topology, we calculated analytically the permanent, obtaining a compact formula that outperforms of several orders of magnitude the Balasubramanian-Bax-Franklin-Glynn algorithm. To conclude, by applying the Fisher-Tippett-Gnedenko theorem, we derived asymptotic expressions of the stationary-state statistics of multi-population networks in the large-network-size limit, in terms of the Gumbel (double exponential) distribution. We also provide a Python implementation of our formulas and some examples of the results generated by the code.
description: 30 pages, 6 figures, 2 supplemental Python scripts
Additional file 5: of The evolution of gene regulatory networks controlling Arabidopsis thaliana L. trichome development
Creators: name: Doroshkov, Alexey
name: Konstantinov, Dmitrii
name: Afonnikov, Dmitrij
name: Gunbin, Konstantin
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Figure S3: A. PhyML phylogenetic relations and composition of domains for R2R3-MYB (AT1G66370; AT1G566650; AT1G66390; AT1G66380; AT5G35550; AT5G14750; AT5G40330; AT3G27920; AT5G52600) homologues of representative plant species. B. Evolutionary changes in protein structure of the R2R3-MYB (AT1G66370; AT1G566650; AT1G66390; AT1G66380; AT5G35550; AT5G14750; AT5G40330; AT3G27920; AT5G52600) homologous proteins being studied branch reflects from right to left: disorder (2 residue types), secondary structure (3 types), secondary structure (8 types), globule surface (3 residue types), rare (comparing with protein specific model) amino acid substitutions. Color scheme: black- outer branch (not analyzed); colours define branch lengths quartile: blue – Q1; green – Q2; orange –Q3; red –Q4. (PDF 5149 kb)
Comment on "Universality of the 1/3 shot-noise suppression factor in nondegenerate diffusive conductors"
Creators: name: Nagaev, K. E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We argue that the nearly 1/3 suppression of shot noise in nondegenerate diffusive contacts recently obtained by Gonzalez et al. (cond-mat/9803372) is due to the specific choice of the energy-independent elastic scattering time.
description: 2 pages, RevTex, no figures
Magneto-optical effects in the Landau level manifold of 2D lattices with spin-orbit interaction
Creators: name: Shah, Muzamil
name: Anwar, Muhammad Sabieh
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Silicene is a competitive and promising 2D material, possessing interesting topological, electronic and optical properties. The presence of strong spin orbit interaction in silicene and its analogues, germanene and tinene, leads to the opening of a gap in the energy spectrum and spin-splitting of the bands in each valley. We develop a general method to determine the magneto-optic response of silicene, when a Gaussian beam is incident on silicene grown on a dielectric substrate in the presence of a static magnetic field. We use a semiclassical treatment of silicene monolayer to describe the Faraday rotation (FR) and Magneto-optical Kerr effect (MOKE) using a general model for beam propagation. The response can be modulated both electrically and magnetically. We derive analytic expressions for valley and spin polarized FR and MOKE for arbitrary polarization of incident light in the terahertz regime. We demonstrate that large FR and MOKE can be achieved by tuning the electric field, magnetic fields and chemical potential in these fascinating 2D materials. Implications for novel valleytronic experiments are also discussed.
description: 10 pages; 3 figures