Search results for: I. Gunther

Items from 1 to 9 out of 9 results

article

Association of neutering with health and welfare of urban free-roaming cat population in Israel, during 2012-2014

I. Gunther, T. Raz, E. Klement

Preventive Veterinary Medicine > 2018 > 157 > C > 26-33

'Trap-Neutering by gonadectomy-Return' (TNR) is currently becoming an accepted method for managing free-roaming cat (FRC) populations, especially in human habitation. However, data regarding its impact on cat welfare are limited. In order to determine the demographic risk factors for FRC morbidity, we followed FRC populations in the city of Rishon LeZion during 2012–2014. Their age status (kitten/adult),...

article

Instant release of fission products in leaching experiments with high burn-up nuclear fuels in the framework of the Euratom project FIRST- Nuclides

K. Lemmens, E. González-Robles, B. Kienzler, E. Curti, more

Journal of Nuclear Materials > 2017 > 484 > C > 307-323

The instant release of fission products from high burn-up UO₂ fuels and one MOX fuel was investigated by means of leach tests. The samples covered PWR and BWR fuels at average rod burn-up in the range of 45–63 GWd/t_HM and included clad fuel segments, fuel segments with opened cladding, fuel fragments and fuel powder. The tests were performed with sodium chloride – bicarbonate solutions under oxidizing...

article

Nuisances and welfare of free-roaming cats in urban settings and their association with cat reproduction

I. Gunther, T. Raz, O. Berke, E. Klement

Preventive Veterinary Medicine > 2015 > 119 > 3-4 > 203-210

Free roaming cats (FRC) are highly abundant in cities around the world. Increasing populations of these cats might result in impairment of cat welfare and cause nuisances and public health risks. In order to study the seasonal dynamics of FRC populations and its association with events of cat welfare impairment and nuisances, we analyzed a database of FRC-associated citizens’ telephone complaint events,...

article

Self- and proxy report for the assessment of pain in patients with and without cognitive impairment

A. Lukas, T. Niederecker, I. Günther, B. Mayer, more

Zeitschrift für Gerontologie und Geriatrie > 2013 > 46 > 3 > 214-221

Background Pain assessment is a complex procedure in patients with different degrees of cognitive impairment. The challenge is to determine whether self-reporting tools are adequate and to identify the cases in which proxy ratings are necessary. Patients and methods As part of an open, prospective observational study, 178 patients underwent a comprehensive pain assessment consisting of the Numeric...

article

Rapid aqueous release of fission products from high burn-up LWR fuel: Experimental results and correlations with fission gas release

L. Johnson, I. Günther-Leopold, J. Kobler Waldis, H.P. Linder, more

Journal of Nuclear Materials > 2012 > 420 > 1-3 > 54-62

Studies of the rapid aqueous release of fission products from UO ₂ and MOX fuel are of interest for the assessment of the safety of geological disposal of spent fuel, because of the associated potential contribution to dose in radiological safety assessment. Studies have shown that correlations between fission gas release (FGR) and the fraction rapidly leached of various long-lived fission...

article

Comparison of optimised germanium gamma spectrometry and multicollector inductively coupled plasma mass spectrometry for the determination of 134Cs, 137Cs and 154Eu single ratios in highly burnt UO2

S. Caruso, I. Günther-Leopold, M.F. Murphy, F. Jatuff, more

Nuclear Inst. and Methods in Physics Research, A > 2008 > 589 > 3 > 425-435

Non-destructive and destructive methods have been compared to validate their corresponding assessed accuracies in the measurement of ¹³⁴ Cs/ ¹³⁷ Cs and ¹⁵⁴ Eu/ ¹³⁷ Cs isotopic concentration ratios in four spent UO ₂ fuel samples with very high (52 and 71GWd/t) and ultra-high (91 and 126GWd/t) burnup values, and about 10 (in the first three samples) and 4 years...

article

Isobaric production cross sections from 0.6 GeV proton irradiation of neptunium and thorium using mass spectrometry

H.U. Wenger, A. Al Mazouzi, F. Atchison, M. Burghartz, more

Nuclear Physics, Section A > 2006 > 764 > Complete > 1-14

A high-fluence proton irradiation of neptunium was the last experiment in PSIs programme ATHENA related to accelerator-based transmutation. The principal aim of the programme has been to provide experimental data for the validation of theoretical models in nucleon–meson transport codes, with emphasis on the mass yield distribution of fission and spallation products. An improved mass spectrometry method...

article

Measurement of plutonium isotope ratios in nuclear fuel samples by HPLC-MC-ICP-MS

I. Günther-Leopold, J. Kobler Waldis, B. Wernli, Z. Kopajtic

International Journal of Mass Spectrometry > 2005 > 242 > 2-3 > 197-202

Radioactive isotopes are traditionally quantified by means of radioactivity counting techniques (α, β, γ). However, these methods often require extensive matrix separation and sample purification before the identification of specific isotopes and their relative abundance is possible as it is necessary in the frame of post-irradiation examinations on nuclear fuel samples.The technique of multicollector...

article

Positron emission tomography in drug evaluation: Influence of three different catechol-O-methyltransferase inhibitors on metabolism of [NCA] 6-[18F]fluoro-l-dopa in rhesus monkey

I. Günther, M. Psylla, G.N. Reddy, A. Antonini, more

Nuclear Medicine and Biology > 1995 > 22 > 7 > 921-927

We compared the influence of three different catechol-O-methyltransferase (COMT) inhibitors (CGP 28014, OR-611 and Ro 40–7592) on the metabolism of no-carrier-added (NCA) 6-[ ¹⁸ F]fluoro-l-dopa (6-FDOPA) in one Rhesus monkey. All three COMT inhibitors improved 6-FDOPA availability in plasma, increased the specific uptake in the brain and thus improved 6-FDOPA uptake measurements using positron...

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Keywords

FREE-ROAMING CATS (2)
232TH(P, X) (1)
237NP (1)
BEWEGUNG (1)
COMMUNICATION (1)
COMPARISON WITH MODEL PREDICTIONS (1)
DEMENTIA (1)
DEMENZ (1)
E=0.6GEV (1)
FELINE MORBIDITY (1)
FERTILITY CONTROL (1)
FIRST-NUCLIDES (1)
HIGH BURNUP (1)
HIGH-RESOLUTION GAMMA SPECTROMETRY (1)
INSTANT RELEASE FRACTION (1)
ISOTOPE DILUTION (1)
ISOTOPE RATIOS (1)
KOMMUNIKATION (1)
LEBENSQUALITÄT (1)
LIGHT WATER REACTORS (1)
MC-ICP-MS (1)
MEASURED ISOBARIC PRODUCTION AND FISSION Σ (1)
MOVEMENT (1)
MULTICOLLECTOR ICP-MS (1)
NEUTERING (1)
NUCLEAR FUEL (1)
NUISANCE (1)
PLUTONIUM (1)
POPULATION DYNAMICS (1)
PUBLIC HEALTH (1)
QUALITY OF LIFE (1)
RATING SCALE (1)
RATING SKALA (1)
SPENT FUEL (1)
SPENT NUCLEAR FUEL (1)
STATIC LEACHING (1)
STERILIZATION (1)
TNR (1)
TRAP-NEUTER-RETURN (1)
WELFARE (1)
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Elsevier (8)
Springer (1)

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Search results for: I. Gunther

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