Background
Left ventricular (LV) systolic dysfunction is a relatively uncommon but serious complication of pediatric chronic kidney disease, and may be related to uremia and uncontrolled ...hypertension. There is limited information on the strategy for managing these children. In some cases, combined heart–kidney transplant may be considered or kidney transplant delayed until cardiac function improves. It is unknown whether these patients are at increased risk for poor outcomes after kidney transplantation.
Methods
We conducted a retrospective, multicenter study on the outcomes of children with severe and symptomatic cardiomyopathy who underwent kidney transplantation.
Results
Eleven patients receiving maintenance dialysis with systolic dysfunction underwent kidney transplantation without simultaneous heart transplant. Nine patients had congestive heart failure in the pre-transplant period. There were no identified complications post-transplant related to the underlying cardiac dysfunction. LV systolic function normalized in all patients and the mean shortening fraction increased from 19.0 ± 4.6 % to 32.0 ± 4.4 % (
p
< 0.0001).
Conclusions
Kidney transplantation should be considered for children receiving maintenance dialysis with severe LV dysfunction.
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, SIK, UILJ, UKNU, UL, UM, UPUK, VKSCE, VSZLJ, ZAGLJ
Grazing on marine macroalgae is a key structuring process for coral reef communities. However, ocean acidification from rising atmospheric CO sub(2) concentrations is predicted to adversely affect ...many marine animals, while seaweed communities may benefit and prosper. We tested how exposure to different pCO sub(2) (400, 1,800 and 4,000 mu atm) may affect grazing on the green alga Ulva lactuca by herbivorous fish and sea urchins from the coral reefs in the northern Gulf of Aqaba (Red Sea), either directly, by changing herbivore behaviour, or indirectly via changes in algal palatability. We also determined the effects of pCO sub(2) on algal tissue concentrations of protein and the grazing-deterrent secondary metabolite dimethylsulfoniopropionate (DMSP). Grazing preferences and overall consumption were tested in a series of multiple-choice feeding experiments in the laboratory and in situ following exposure for 14 d (algae) and 28 d (herbivores). 4,000 mu atm had a significant effect on the biochemical composition and palatability of U. lactuca. No effects were observed at 1,800 relative to 400 mu atm (control). Exposure of U. lactuca to 4,000 mu atm resulted in a significant decrease in protein and increase in DMSP concentration. This coincided with a reduced preference for these algae by the sea urchin Tripneustes gratilla and different herbivorous fish species in situ (Acanthuridae, Siganidae and Pomacanthidae). No feeding preferences were observed for the rabbitfish Siganus rivulatus under laboratory conditions. Exposure to elevated pCO sub(2) had no direct effect on the overall algal consumption by T. gratilla and S. rivulatus. Our results show that CO sub(2) has the potential to alter algal palatability to different herbivores which could have important implications for algal abundance and coral community structure. The fact that pCO sub(2) effects were observed only at a pCO sub(2) of 4,000 mu atm, however, indicates that algal-grazer interactions may be resistant to predicted pCO sub(2) concentrations in the near future.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Objective: This study describes the development of an engagement scale for use with youth in residential treatment centers. Engagement includes attitude about treatment, bond with providers, and ...participation in treatment activities. Method: Interview data were collected at the midpoint in residence of 130 youth in two centers. Items were selected to capture practitioners' description of three related concepts in a logic model. The authors conducted confirmatory factor analysis and examined interitem reliability. Results: Results indicate a single underlying factor, which the authors label engagement, an acceptable level of reliability, and strong content validity. Conclusion: The scale integrates several concepts in the treatment process literature and might serve to assess youth engagement in residential settings. Additional study should examine construct and construct validity.
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NUK, OILJ, SAZU, UKNU, UL, UM, UPUK
The possibility of measuring the proton electromagnetic form factors in the time-like region at FAIR with the \PANDA detector is discussed. Detailed simulations on signal efficiency for the ...annihilation of $\bar p +p $ into a lepton pair as well as for the most important background channels have been performed. It is shown that precision measurements of the differential cross section of the reaction $\bar p +p \to e^++ e^-$ can be obtained in a wide angular and kinematical range. The individual determination of the moduli of the electric and magnetic proton form factors will be possible up to a value of momentum transfer squared of $q^2\simeq 14$ (GeV/c)$^2$. The total $\bar p +p\to e^++e^-$ cross section will be measured up to $q^2\simeq 28$ (GeV/c)$^2$. The results obtained from simulated events are compared to the existing data. Sensitivity to the two photons exchange mechanism is also investigated.
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, SIK, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Abstract
A partial wave analysis of antiproton–proton annihilation data in flight at 900
$$\mathrm {MeV/}c$$
MeV
/
c
into
$${\pi ^0\pi ^0\eta }$$
π
0
π
0
η
,
$${\pi ^0\eta \eta }$$
π
0
η
η
and
...$${K^+K^-\pi ^0}$$
K
+
K
-
π
0
is presented. The data were taken at LEAR by the Crystal Barrel experiment in 1996. The three channels have been coupled together with
$$\pi \pi $$
π
π
-scattering isospin I = 0 S- and D-wave as well as I = 1 P-wave data utilizing the K-matrix approach. Analyticity is treated using Chew–Mandelstam functions. In the fit all ingredients of the K-matrix, including resonance masses and widths, were treated as free parameters. In spite of the large number of parameters, the fit results are in the ballpark of the values published by the Particle Data Group. In the channel
$${\pi ^0\pi ^0\eta }$$
π
0
π
0
η
a significant contribution of the spin exotic
$$I^G=1^-$$
I
G
=
1
-
$$J^{PC}=1^{-+}$$
J
PC
=
1
-
+
$$\pi _1$$
π
1
-wave with a coupling to
$$\pi ^0 \eta $$
π
0
η
is observed. Furthermore the contributions of
$$\phi (1020) \pi ^0$$
ϕ
(
1020
)
π
0
and
$$K^*(892)^\pm K^\mp $$
K
∗
(
892
)
±
K
∓
in the channel
$${K^+K^-\pi ^0}$$
K
+
K
-
π
0
have been studied in detail. The differential production cross section for the two reactions and the spin-density-matrix elements for the
$$\phi (1020)$$
ϕ
(
1020
)
and
$$K^*(892)^\pm $$
K
∗
(
892
)
±
have been extracted. No spin-alignment is observed for both vector mesons. The spin density matrix elements have been also determined for the spin exotic wave.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Abstract A partial wave analysis of antiproton–proton annihilation data in flight at 900 $$\mathrm {MeV/}c$$ MeV/c into $${\pi ^0\pi ^0\eta }$$ π0π0η , $${\pi ^0\eta \eta }$$ π0ηη and $${K^+K^-\pi ...^0}$$ K+K-π0 is presented. The data were taken at LEAR by the Crystal Barrel experiment in 1996. The three channels have been coupled together with $$\pi \pi $$ ππ -scattering isospin I = 0 S- and D-wave as well as I = 1 P-wave data utilizing the K-matrix approach. Analyticity is treated using Chew–Mandelstam functions. In the fit all ingredients of the K-matrix, including resonance masses and widths, were treated as free parameters. In spite of the large number of parameters, the fit results are in the ballpark of the values published by the Particle Data Group. In the channel $${\pi ^0\pi ^0\eta }$$ π0π0η a significant contribution of the spin exotic $$I^G=1^-$$ IG=1- $$J^{PC}=1^{-+}$$ JPC=1-+ $$\pi _1$$ π1 -wave with a coupling to $$\pi ^0 \eta $$ π0η is observed. Furthermore the contributions of $$\phi (1020) \pi ^0$$ ϕ(1020)π0 and $$K^*(892)^\pm K^\mp $$ K∗(892)±K∓ in the channel $${K^+K^-\pi ^0}$$ K+K-π0 have been studied in detail. The differential production cross section for the two reactions and the spin-density-matrix elements for the $$\phi (1020)$$ ϕ(1020) and $$K^*(892)^\pm $$ K∗(892)± have been extracted. No spin-alignment is observed for both vector mesons. The spin density matrix elements have been also determined for the spin exotic wave.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
A partial wave analysis of antiproton–proton annihilation data in flight at 900 MeV/c into π0π0η, π0ηη and K+K-π0 is presented. The data were taken at LEAR by the Crystal Barrel experiment in 1996. ...The three channels have been coupled together with ππ-scattering isospin I = 0 S- and D-wave as well as I = 1 P-wave data utilizing the K-matrix approach. Analyticity is treated using Chew–Mandelstam functions. In the fit all ingredients of the K-matrix, including resonance masses and widths, were treated as free parameters. In spite of the large number of parameters, the fit results are in the ballpark of the values published by the Particle Data Group. In the channel π0π0η a significant contribution of the spin exotic IG=1-JPC=1-+π1-wave with a coupling to π0η is observed. Furthermore the contributions of ϕ(1020)π0 and K∗(892)±K∓ in the channel K+K-π0 have been studied in detail. The differential production cross section for the two reactions and the spin-density-matrix elements for the ϕ(1020) and K∗(892)± have been extracted. No spin-alignment is observed for both vector mesons. The spin density matrix elements have been also determined for the spin exotic wave.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
The potential impact of seawater acidification on the concentrations of dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP), and the activity of the enzyme DMSP-lyase was investigated during ...a pelagic ecosystem CO2 enrichment experiment (PeECE III) in spring 2005. Natural phytoplankton blooms were studied for 24 days under present, double and triple partial pressures of CO2 (pCO2; pH=8.3, 8.0, 7.8) in triplicate 25 m3 enclosures. The results indicate similar DMSP concentrations and DMSP-lyase activity (DLA) patterns for all treatments. Hence, DMSP and DLA do not seem to have been affected by the CO2 treatment. In contrast, DMS concentrations showed small but statistically significant differences in the temporal development of the low versus the high CO2 treatments. The low pCO2 enclosures had higher DMS concentrations during the first 10 days, after which the levels decreased earlier and more rapidly than in the other treatments. Integrated over the whole study period, DMS concentrations were not significantly different from those of the double and triple pCO2 treatments. Pigment and flow-cytometric data indicate that phytoplanktonic populations were generally similar between the treatments, suggesting a certain resilience of the marine ecosystem under study to the induced pH changes, which is reflected in DMSP and DLA. However, there were significant differences in bacterial community structure and the abundance of one group of viruses infecting nanoeukaryotic algae. The amount of DMS accumulated per total DMSP or chlorophyll-a differed significantly between the present and future scenarios, suggesting that the pathways for DMS production or bacterial DMS consumption were affected by seawater pH. A comparison with previous work (PeECE II) suggests that DMS concentrations do not respond consistently to pelagic ecosystem CO2 enrichment experiments.
A partial wave analysis of antiproton–proton annihilation data in flight at 900
MeV
/
c
into
π
0
π
0
η
,
π
0
η
η
and
K
+
K
-
π
0
is presented. The data were taken at LEAR by the Crystal Barrel ...experiment in 1996. The three channels have been coupled together with
π
π
-scattering isospin I = 0 S- and D-wave as well as I = 1 P-wave data utilizing the K-matrix approach. Analyticity is treated using Chew–Mandelstam functions. In the fit all ingredients of the K-matrix, including resonance masses and widths, were treated as free parameters. In spite of the large number of parameters, the fit results are in the ballpark of the values published by the Particle Data Group. In the channel
π
0
π
0
η
a significant contribution of the spin exotic
I
G
=
1
-
J
PC
=
1
-
+
π
1
-wave with a coupling to
π
0
η
is observed. Furthermore the contributions of
ϕ
(
1020
)
π
0
and
K
∗
(
892
)
±
K
∓
in the channel
K
+
K
-
π
0
have been studied in detail. The differential production cross section for the two reactions and the spin-density-matrix elements for the
ϕ
(
1020
)
and
K
∗
(
892
)
±
have been extracted. No spin-alignment is observed for both vector mesons. The spin density matrix elements have been also determined for the spin exotic wave.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
The reaction
pp→
K
+
Λp was measured exclusively at the cooler synchrotron COSY at beam momenta of p
Beam = 2.50
GeV/c and p
Beam = 2.75
GeV/c using the TOF detector. Angular and momentum ...distributions were obtained for the full phase space of the reaction products. Total cross sections were extracted to be (2.7 ± 0.3)
μb and (12.0 ± 0.4)
μb, respectively. The polarization of the
Λ-hyperon was determined as a function of its transversal momentum and was found to be negative for transverse momentum transfers of p
T
≥ 0.3
GeV/c. The results together with existing data are compared with phenomenological parametrizations and model calculations on the basis of meson exchange.
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IJS, IMTLJ, KILJ, KISLJ, NUK, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
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