Quantitative Radioisotope Measurement of Duodenogastric Reflux in Patients with Ulcer or Gastrectomized for Ulcer

SummaryIn this work the duodenogastric reflux was quantified as the amount of radioactivity entering the stomach after an i.v. administration of 99mmTc-HIDA in ulcer patients and in patients who had undergone BI gastrectomy. The results were compared with visual evidence of gastric activity in the gamma camera images and biochemical determination of gastric bile reflux. The method is useful in quantifying the reflux if the activity is above the background activity. It allows the determination of an upper limit for the reflux when the reflux is evident visually. Only two or three images are needed for the quantitation. No correlation was found between biochemical measurement of fasting bile reflux in the stomach and radioisotopic quantification.

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On the Determination of the Resolution Index of a Gamma Camera

Nuklearmedizin ◽

10.1055/s-0038-1624837 ◽

1973 ◽

Vol 12 (04) ◽

pp. 360-366

Author(s):

Barbara Gwiazdowska ◽

H. Mackiewicz ◽

J. Tolwinski

Keyword(s):

Gamma Camera

L’étude tâche d’interpréter les différences des indices de résolution de gamma caméra obtenues expérimentalement et calculées. Les erreurs de mesurage et les conditions de validité des formules utilisées dans les calcules sont discutées. On a pu obtenir un agréement des deux méthodes et une confirmation théorique. On suggert de déterminer quelque condition de mesurage ou de remplacer les méthodes de mesurage par de calcul.

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ChemInform Abstract: Reaction of the NO3Radical with CO: Determination of an Upper Limit for the Rate Constant Using FTIR Spectroscopy.

Chemischer Informationsdienst ◽

10.1002/chin.198644022 ◽

1986 ◽

Vol 17 (44) ◽

Author(s):

J. HJORTH ◽

G. OTTOBRINI ◽

G. RESTELLI

Keyword(s):

Ftir Spectroscopy ◽

Rate Constant ◽

Upper Limit

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X-Ray Determination of the Black-Hole Mass in Cygnus X-1

Symposium - International Astronomical Union ◽

10.1017/s0074180900115669 ◽

1998 ◽

Vol 188 ◽

pp. 388-389

Author(s):

A. Kubota ◽

K. Makishima ◽

T. Dotani ◽

H. Inoue ◽

K. Mitsuda ◽

...

Keyword(s):

Black Hole ◽

Compact Object ◽

Optical Observations ◽

Black Hole Mass ◽

X Ray ◽

Upper Limit ◽

Supergiant Star ◽

X Ray Binaries ◽

Two Bodies

About 10 X-ray binaries in our Galaxy and LMC/SMC are considered to contain black hole candidates (BHCs). Among these objects, Cyg X-1 was identified as the first BHC, and it has led BHCs for more than 25 years(Oda 1977, Liang and Nolan 1984). It is a binary system composed of normal blue supergiant star and the X-ray emitting compact object. The orbital kinematics derived from optical observations indicates that the compact object is heavier than ~ 4.8 M⊙ (Herrero 1995), which well exceeds the upper limit mass for a neutron star(Kalogora 1996), where we assume the system consists of only two bodies. This has been the basis for BHC of Cyg X-1.

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Constraints on neutrino non-standard interactions from LHC data with large missing transverse momentum

Journal of High Energy Physics ◽

10.1007/jhep02(2021)033 ◽

2021 ◽

Vol 2021 (2) ◽

Author(s):

DianYu Liu ◽

ChuanLe Sun ◽

Jun Gao

Keyword(s):

Transverse Momentum ◽

Neutral Current ◽

Data Sets ◽

Leading Order ◽

Missing Transverse Momentum ◽

Upper Limit ◽

Theoretical Predictions ◽

Parton Showering ◽

Single Jet

Abstract The possible non-standard interactions (NSIs) of neutrinos with matter plays important role in the global determination of neutrino properties. In our study we select various data sets from LHC measurements at 13 TeV with integrated luminosities of 35 ∼ 139 fb−1, including production of a single jet, photon, W/Z boson, or charged lepton accompanied with large missing transverse momentum. We derive constraints on neutral-current NSIs with quarks imposed by different data sets in a framework of either effective operators or simplified Z′ models. We use theoretical predictions of productions induced by NSIs at next-to-leading order in QCD matched with parton showering which stabilize the theory predictions and result in more robust constraints. In a simplified Z′ model we obtain a 95% CLs upper limit on the conventional NSI strength ϵ of 0.042 and 0.0028 for a Z′ mass of 0.2 and 2 TeV respectively. We also discuss possible improvements from future runs of LHC with higher luminosities.

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Criteria for physiological limits for work in heat

Journal of Applied Physiology ◽

10.1152/jappl.1965.20.1.37 ◽

1965 ◽

Vol 20 (1) ◽

pp. 37-45 ◽

Cited By ~ 29

Author(s):

C. H. Wyndham ◽

N. B. Strydom ◽

J. F. Morrison ◽

C. G. Williams ◽

G. A. G. Bredell ◽

...

Keyword(s):

Rectal Temperature ◽

Temperature Regulation ◽

Sweat Rate ◽

Human Sciences ◽

Laboratory Studies ◽

Physiological Strain ◽

Saturated Control ◽

Physiological Limits ◽

Upper Limit

New physiological criteria are put forward for setting the limits for men at work in hot conditions. They are based upon the fact that the curves relating rectal temperatures to conductances and rectal temperatures to sweat rates have two components. One is where the increases in the sweat rates and conductances, with rise in rectal temperature, are relatively large, i.e., there is a “sensitive” range of control; the second is where the curves of sweat rates and conductances against rectal temperatures reach asymptotes, i.e., become “saturated.” The upper limit of the sensitive range is a rectal temperature of 100.5 F (38.1 C), and the saturated range begins at rectal temperatures of 102.5 F (39.4 C). These concepts explain the “easy,” “difficult,” or “excessive” ranges of conditions of the Fort Knox and Human Sciences Laboratory studies. The great advantage of these criteria over others proposed is that the extent of the physiological strain on the workmen can be assessed, directly and simply, by a measurement of oral or rectal temperatures during the shift, and from these results limits for work can be set for work at specific hot jobs. assessment of the extent of physiological strain on workmen in heat; determination of physiological limits for work in hot conditions; sensitive and saturated control ranges in man's temperature regulation; relationships between rectal temperature and conductance and rectal temperature and sweat rate Submitted on March 20, 1964

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