The presence of interstellar scintillation in the 15 GHz interday variability of 1158 OVRO-monitored blazars

ABSTRACT We have conducted the first systematic search for interday variability in a large sample of extragalactic radio sources at 15 GHz. From the sample of 1158 radio-selected blazars monitored over an ∼10 yr span by the Owens Valley Radio Observatory 40-m telescope, we identified 20 sources exhibiting significant flux density variations on 4-d time-scales. The sky distribution of the variable sources is strongly dependent on the line-of-sight Galactic H α intensities from the Wisconsin H α Mapper Survey, demonstrating the contribution of interstellar scintillation (ISS) to their interday variability. 21 per cent of sources observed through sightlines with H α intensities larger than 10 rayleighs exhibit significant ISS persistent over the ∼10 yr period. The fraction of scintillators is potentially larger when considering less significant variables missed by our selection criteria, due to ISS intermittency. This study demonstrates that ISS is still important at 15 GHz, particularly through strongly scattered sightlines of the Galaxy. Of the 20 most significant variables, 11 are observed through the Orion–Eridanus superbubble, photoionized by hot stars of the Orion OB1 association. The high-energy neutrino source TXS 0506+056 is observed through this region, so ISS must be considered in any interpretation of its short-term radio variability. J0616−1041 appears to exhibit large ∼20 per cent interday flux density variations, comparable in magnitude to that of the very rare class of extreme, intrahour scintillators that includes PKS0405−385, J1819+3845, and PKS1257−326; this needs to be confirmed by higher cadence follow-up observations.

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Intra-articular Transcalcaneal Fracture-Dislocation Associated With Ipsilateral Transtalar Fracture: A Report of a Rare Combination

Foot & Ankle Specialist ◽

10.1177/1938640020913177 ◽

2020 ◽

Vol 13 (4) ◽

pp. 335-340

Author(s):

Danilo Ryuko Cândido Nishikawa ◽

Bruno Rodrigues de Miranda ◽

Fernando Aires Duarte ◽

Guilherme Honda Saito ◽

Rogério Carneiro Bitar ◽

...

Keyword(s):

Case Report ◽

High Energy ◽

Fracture Dislocation ◽

Calcaneal Fractures ◽

Short Term ◽

High Energy Trauma ◽

Rare Combination ◽

Severe Bone Loss ◽

Neck Fracture

The association of ipsilateral talar and calcaneal fractures is an uncommon combination and is typically the result of a high-energy trauma. It is often associated with comminution, marked fracture displacement, and soft-tissue compromise. Obtaining satisfactory clinical and radiographic results is very challenging. Residual deformities, multiple procedures, and limitations are usually the norm. Therefore, studies have suggested that primary arthrodesis may represent the best option of surgical treatment. In this study, we report a case of a 30-year-old male patient with a rare combination of a highly comminuted transcalcaneal fracture-dislocation associated with a talar neck fracture successfully treated with open reduction and internal fixation (ORIF) with an 18-month follow-up. This case demonstrates that even when there are associated fractures of the talus and calcaneus with severe bone loss, ORIF may provide satisfactory outcomes in the short-term postoperative period. Levels of Evidence: Level V: Case report

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Radio Measurements of Planetary Nebulae

Symposium - International Astronomical Union ◽

10.1017/s0074180900020489 ◽

1968 ◽

Vol 34 ◽

pp. 112-121 ◽

Cited By ~ 1

Author(s):

A. R. Thompson

Keyword(s):

Neutral Hydrogen ◽

Planetary Nebulae ◽

Optical Data ◽

Balmer Line ◽

Owens Valley ◽

Radio Observatory ◽

Optical Position ◽

The Galaxy ◽

Radio Measurements ◽

Absorption Features

Sixty-eight planetary nebulae have been investigated in a series of observations at 10-cm wavelength using the two 90-ft diameter antennas of the Owens Valley Radio Observatory. Of these, 52 were found to have flux densities greater than a minimum detectable level of approximately 10–27 Wm–2 Hz–1. To indicate cases of possible confusion in the radio observations, the measured radio position of each nebula was compared with an accurate optical position. For a number of the stronger nebulae angular widths in the East–West direction and flux densities at 21 cm were also measured. The results lead to the conclusion that the radio emission is thermal, and on this basis the expected flux densities in Hβ have been calculated. A comparison with optical data shows values of the Hβ extinction Δ log FHβ, ranging from zero to approximately 2·0 for NGC 6537 and NGC 6369.A small number of nebulae show prominently the effects of self-absorption in their radio spectra. For two of these, IC 418 and NGC 6572, an attempt has been made to derive accurate optical depths and electron temperatures using models based on Balmer-line isophotes. The temperature values have large uncertainties, but appear to be less than the values derived from forbidden-line ratios by a factor of at least 1·5. A possible explanation of this difference in terms of temperature variations within the nebulae is discussed.Preliminary results of observations to detect absorption features at the wavelength of the 21-cm hydrogen line are described for 6 nebulae with high radio-flux densities. Two nebulae, NGC 6369 and NGC 6857 show absorption which is probably attributable to hydrogen clouds within the galaxy. No definite evidence of absorption at frequencies near the radial velocities of the nebulae was found, and an upper limit on the mass of neutral hydrogen in two nebulae is briefly discussed.

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The Gravitational Lens System B1030+074. Discovery and Follow-up

Symposium - International Astronomical Union ◽

10.1017/s007418090016231x ◽

1999 ◽

Vol 194 ◽

pp. 373-378

Author(s):

E. Xanthopoulos ◽

I. W. A. Browne ◽

L. J. King ◽

N. J. Jackson ◽

D. R. Marlow ◽

...

Keyword(s):

Time Delay ◽

Flux Density ◽

Density Ratio ◽

Hubble Constant ◽

Time Variable ◽

Gravitational Lens ◽

Lens System ◽

Double Image ◽

The Galaxy

We report the discovery of a new double image gravitational lens system B1030+074 which was found during the Jodrell Bank - VLA Astrometric Survey (JVAS). We have collected extensive radio data on the system using the VLA, MERLIN, the EVN and the VLBA as well as HST WFPC2 and NICMOS observations. The lensed images are separated by 1.56 arcseconds and their flux density ratio at centimetric wavelengths is approximately 14:1 although the ratio is slightly frequency dependent and the images appear to be time variable. The HST pictures show both the lensed images and the lensing galaxy close to the weaker image. The lensing galaxy has substructure which could be either part of the galaxy or a companion object. We have modeled B1030+074 using a Singular Isothermal Ellipsoid that yielded a time delay of 156/h50 days. This lens is likely to be suitable for the measurement of the Hubble constant.

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The Link Between Verbal Short-Term Memory and Anomia Treatment Gains

American Journal of Speech-Language Pathology ◽

10.1044/2019_ajslp-18-0176 ◽

2019 ◽

Vol 28 (3) ◽

pp. 1039-1052

Author(s):

Reva M. Zimmerman ◽

JoAnn P. Silkes ◽

Diane L. Kendall ◽

Irene Minkina

Keyword(s):

Short Term Memory ◽

Controlled Trial ◽

Treatment Success ◽

Linear Regression Models ◽

Language Performance ◽

Short Term ◽

Term Memory ◽

Treatment Gains ◽

Post Hoc

Purpose A significant relationship between verbal short-term memory (STM) and language performance in people with aphasia has been found across studies. However, very few studies have examined the predictive value of verbal STM in treatment outcomes. This study aims to determine if verbal STM can be used as a predictor of treatment success. Method Retrospective data from 25 people with aphasia in a larger randomized controlled trial of phonomotor treatment were analyzed. Digit and word spans from immediately pretreatment were run in multiple linear regression models to determine whether they predict magnitude of change from pre- to posttreatment and follow-up naming accuracy. Pretreatment, immediately posttreatment, and 3 months posttreatment digit and word span scores were compared to determine if they changed following a novel treatment approach. Results Verbal STM, as measured by digit and word spans, did not predict magnitude of change in naming accuracy from pre- to posttreatment nor from pretreatment to 3 months posttreatment. Furthermore, digit and word spans did not change from pre- to posttreatment or from pretreatment to 3 months posttreatment in the overall analysis. A post hoc analysis revealed that only the less impaired group showed significant changes in word span scores from pretreatment to 3 months posttreatment. Discussion The results suggest that digit and word spans do not predict treatment gains. In a less severe subsample of participants, digit and word span scores can change following phonomotor treatment; however, the overall results suggest that span scores may not change significantly. The implications of these findings are discussed within the broader purview of theoretical and empirical associations between aphasic language and verbal STM processing.

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1524: High Energy Tumt and Adjuvant Alpha Blockade Significantly Improves Symptoms in Men with Cathegory IIIB (CPPS) Prostatitis. A Prospective Non-Randomized with 5 Years Follow Up

The Journal of Urology ◽

10.1016/s0022-5347(18)33728-5 ◽

2006 ◽

Vol 175 (4S) ◽

pp. 491-492

Author(s):

Sybille Mariharl ◽

Christian Seitz ◽

Bob Djavan ◽

Matthias Walderl ◽

Michael Dobrovits ◽

...

Keyword(s):

High Energy ◽

Alpha Blockade

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Anticoagulation in addition to dual antiplatelet therapy has no impact on long-term follow-up after endovascular treatment of (sub)acute lower limb ischemia

VASA ◽

10.1024/0301-1526/a000786 ◽

2019 ◽

Vol 48 (4) ◽

pp. 321-329

Author(s):

Mariya Kronlage ◽

Erwin Blessing ◽

Oliver J. Müller ◽

Britta Heilmeier ◽

Hugo A. Katus ◽

...

Keyword(s):

Endovascular Treatment ◽

Antiplatelet Therapy ◽

Dual Antiplatelet Therapy ◽

Limb Ischemia ◽

Bleeding Complications ◽

Severe Bleeding ◽

Short Term ◽

Long Term Follow Up

Summary. Background: To assess the impact of short- vs. long-term anticoagulation in addition to standard dual antiplatelet therapy (DAPT) upon endovascular treatment of (sub)acute thrombembolic occlusions of the lower extremity. Patient and methods: Retrospective analysis was conducted on 202 patients with a thrombembolic occlusion of lower extremities, followed by crirical limb ischemia that received endovascular treatment including thrombolysis, mechanical thrombectomy, or a combination of both between 2006 and 2015 at a single center. Following antithrombotic regimes were compared: 1) dual antiplatelet therapy, DAPT for 4 weeks (aspirin 100 mg/d and clopidogrel 75 mg/d) upon intervention, followed by a lifelong single antiplatelet therapy; 2) DAPT plus short term anticoagulation for 4 weeks, followed by a lifelong single antiplatelet therapy; 3) DAPT plus long term anticoagulation for > 4 weeks, followed by a lifelong anticoagulation. Results: Endovascular treatment was associated with high immediate revascularization (> 98 %), as well as overall and amputation-free survival rates (> 85 %), independent from the chosen anticoagulation regime in a two-year follow up, p > 0.05. Anticoagulation in addition to standard antiplatelet therapy had no significant effect on patency or freedom from target lesion revascularization (TLR) 24 months upon index procedure for both thrombotic and embolic occlusions. Severe bleeding complications occurred more often in the long-term anticoagulation group (9.3 % vs. 5.6 % (short-term group) and 6.5 % (DAPT group), p > 0.05). Conclusions: Our observational study demonstrates that the choice of an antithrombotic regime had no impact on the long-term follow-up after endovascular treatment of acute thrombembolic limb ischemia whereas prolonged anticoagulation was associated with a nominal increase in severe bleeding complications.

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Catheter-directed foam sclerotherapy treatment of saphenous vein incompetence

VASA ◽

10.1024/0301-1526/a000174 ◽

2012 ◽

Vol 41 (2) ◽

pp. 120-124 ◽

Cited By ~ 11

Author(s):

Asciutto ◽

Lindblad

Keyword(s):

Saphenous Vein ◽

Short Term ◽

Foam Sclerotherapy ◽

Results Of Treatment ◽

Ulcer Healing Rate ◽

Complete Obliteration ◽

Ceap Classification ◽

One Year ◽

The One

Background: The aim of this study is to report the short-term results of catheter-directed foam sclerotherapy (CDFS) in the treatment of axial saphenous vein incompetence. Patients and methods: Data of all patients undergoing CDFS for symptomatic primary incompetence of the great or small saphenous vein were prospectively collected. Treatment results in terms of occlusion rate and patients grade of satisfaction were analysed. All successfully treated patients underwent clinical and duplex follow-up examinations one year postoperatively. Results: Between September 2006 and September 2010, 357 limbs (337 patients) were treated with CDFS at our institution. Based on the CEAP classification, 64 were allocated to clinical class C3 , 128 to class C4, 102 to class C5 and 63 to class C6. Of the 188 patients who completed the one year follow up examination, 67 % had a complete and 14 % a near complete obliteration of the treated vessel. An ulcer-healing rate of 54 % was detected. 92 % of the patients were satisfied with the results of treatment. We registered six cases of thrombophlebitis and two cases of venous thromboembolism, all requiring treatment. Conclusions: The short-term results of CDFS in patients with axial vein incompetence are acceptable in terms of occlusion and complications rates.

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Cathartic Effect of Suicide Attempts Not Limited to Depression

Crisis ◽

10.1027//0227-5910.24.2.73 ◽

2003 ◽

Vol 24 (2) ◽

pp. 73-78 ◽

Cited By ~ 21

Author(s):

Yves Sarfati ◽

Blandine Bouchaud ◽

Marie-Christine Hardy-Baylé

Keyword(s):

Quality Of Life ◽

Depressive Symptoms ◽

Personality Traits ◽

Rating Scales ◽

Suicide Attempts ◽

World Health ◽

Life Questionnaire ◽

Short Term

Summary: The cathartic effect of suicide is traditionally defined as the existence of a rapid, significant, and spontaneous decrease in the depressive symptoms of suicide attempters after the act. This study was designed to investigate short-term variations, following a suicide attempt by self-poisoning, of a number of other variables identified as suicidal risk factors: hopelessness, impulsivity, personality traits, and quality of life. Patients hospitalized less than 24 hours after a deliberate (moderate) overdose were presented with the Montgomery-Asberg Depression and Impulsivity Rating Scales, Hopelessness scale, MMPI and World Health Organization's Quality of Life questionnaire (abbreviated versions). They were also asked to complete the same scales and questionnaires 8 days after discharge. The study involved 39 patients, the average interval between initial and follow-up assessment being 13.5 days. All the scores improved significantly, with the exception of quality of life and three out of the eight personality traits. This finding emphasizes the fact that improvement is not limited to depressive symptoms and enables us to identify the relative importance of each studied variable as a risk factor for attempted suicide. The limitations of the study are discussed as well as in particular the nongeneralizability of the sample and setting.

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Standardized Tendon Fenestration with Injection of Autologous Blood for Treatment of Lateral Epicondylitis

Journal of Hand and Microsurgery ◽

10.1055/s-0040-1716991 ◽

2020 ◽

Author(s):

Chul Ki Goorens ◽

Pascal Wernaers ◽

Joost Dewaele

Keyword(s):

Tennis Elbow ◽

Autologous Blood ◽

Lateral Epicondylitis ◽

Pain Scale ◽

Short Term ◽

Shockwave Therapy ◽

Other Substances ◽

Injured Tendon ◽

Satisfaction Rates

AbstractLateral epicondylitis (LE) of the elbow is often treated with conservative methods. Several techniques including injections with different substances are widely performed. No standardization exists. This prospective study describes the results of the short-term follow-up of 56 patients with mean age 48 years (range: 30–68 years) treated with the Instant Tennis Elbow Cure Medical device, which fenestrates the injured tendon in a standardized way through a holder of 12 small needles. Depth and position of the needles are determined beforehand by ultrasonography. Unprepared autologous blood was injected through the holder in the tendon. Visual analog pain scale (VAS) decreased significantly in rest by 61% and during activity by 47% after 6 weeks. VAS decreased significantly in rest by 79% and during activity by 66% after 3 months. VAS did not remain significantly different after 6 months. Satisfaction rates were 71% after 6 weeks and 82% after 6 months. This suggests that the therapeutical effect sustains and in some cases increases over time. Patient Related Tennis Elbow Evaluation score ameliorated after 3 months by 71%. Comparative studies are needed to confirm this effect versus other techniques as physiotherapy, shockwave therapy, and injections with other substances.

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