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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Inc
    The @breast journal 10 (2004), S. 0 
    ISSN: 1524-4741
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 51 (1988), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: We have studied the ganglioside content and pattern of synaptic vesicles isolated from the electric organs of two species of Torpedinidae, Torpedo californica and Torpedo marmorata. The ganglioside concentrations were high relative to protein content (77 and 58 μg of N-acetylneuraminic acid/ mg of protein, respectively), owing to the low protein-to-lipid ratio; however, they were also appreciable in relation to phospholipid (15.6 and 10.0 μg, of N-acetylneuraminic acid/ mg of phospholipid). The fact that a membrane fraction that separated from synaptic vesicles of T. californica on a controlled-pore glass-bead column and constituted the main potential source of contamination in this preparation had a lower ganglioside content and a different TLC pattern than synaptic vesicles indicated the relatively high purity of the latter. Most of the gangliosides from synaptic vesicles of both species migrated on TLC in the vicinity of standards with three or more sialic acids. Synaptosomes from T. marmorata had a higher lipid N-acetylneuraminic acid/phospholipid ratio and a different TLC pattern than synaptic vesicles. Considering these results and other data appearing recently in the literature, we suggest that reexamination of synaptic vesicles from mammalian brain for the possible presence of gangliosides is warranted.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford UK : Blackwell Science Ltd
    Journal of advanced nursing 34 (2001), S. 0 
    ISSN: 1365-2648
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Adults’ recollections of their experiences as young caregivers of family members with chronic physical illnesses Aims of the study.  The aims of this study were to describe the number, kind, and intensity of caregiving activities performed by individuals who assumed caregiving responsibilities, as youngsters, for adults with chronic physical illnesses; to explore the meaning and effects of the caregiving experience on those individuals; and to examine positive and negative effects of caregiving then and now. Background/Rationale.  Family mobility, demographic changes, and health care system changes in the United States of America (USA) have contributed to an increasing number of youngsters under the age of 18 caring for adults with chronic physical illnesses in the home. The effects of such caregiving on youngsters and the long-term effects on them as adults require study. Design/Methods.  This descriptive, retrospective study had a convenience sample of 51 adults (age range 19–68 years now, 3–19 years then) who cared for their family members diagnosed with cancer, stroke, cardiovascular disease, multiple sclerosis or amyotrophic lateral sclerosis, respiratory disease, diabetes, or arthritis. Demographic data and caregiving data were analysed using descriptive statistics. The semistructured interview data were analysed using content analysis. Results/Findings.  Of the caregiving care tasks most frequently performed, personal care was most difficult and household tasks were most time consuming. Family life, school, and time with friends were areas most likely to be affected by caregiving. Most subjects indicated they would permit their own children to assist with care as long as the youngster was not the sole caregiver. Youngsters need to be informed about the illness and caregiving tasks, have adequate support systems, and have some time to ‘still be a child’. Conclusions.  Professional caregivers should raise questions in their practice regarding involvement in caregiving by both adults and youngsters. If youngsters participate in caregiving in the home, they need to receive adequate information regarding care and the illness trajectory. Family-related research including the long-term effects of such experiences on the youngsters and their families is recommended.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford UK : Blackwell Science Ltd
    Journal of advanced nursing 35 (2001), S. 0 
    ISSN: 1365-2648
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Triage nurses’ clinical decision making. An observational study of urgency assessment Background. Researchers have described both the various decision tasks performed by triage nurses using self-report methods and identified time as a factor influencing the quality of triage decisions. However, little is known about the decision tasks performed by triage nurses when making acuity assessments, or the factors influencing triage duration in the real world. Aims. The aims of this study were to: describe the data triage nurses collect from patients in order to allocate a triage priority using the Australasian Triage Scale (ATS); describe the duration of nurses’ decision making for ATS categories 2–5; and to explore the impact of patient and nurse variables on the duration of the triage nurses’ decision making in the clinical setting. Design. A structured observational study was employed to address the research aims. Observational data was collected in one adult emergency department located in metropolitan Melbourne, Australia. A total of 26 triage nurses consented and were observed performing 404 occasions of triage. Data was collected by a single observer using a 20-item instrument that recorded the performance frequencies of a range of decision tasks and a number of observable patient, nurse and environmental variables. Additionally, the nurse–patient interaction was recorded as time in minutes. Results. It was found that there was limited use of objective physiological data collected by the nurses’ in order to decide patient acuity, and large variability in the duration of triage decisions observed. In addition, analysis of variance indicated strong evidence of a true difference between triage duration and a range of nurse, patient and environmental variables. Conclusion. These findings have implications for the development of practice standards and triage education. In particular, it is argued that practice standards should include routine measurement of physiological parameters in all but the collapsed or obviously unwell patient, where further delay may impede the delivery oftime-critical intervention. Furthermore, the inclusion of arbitrary time frames for triage assessment in practice standards are not an appropriate method of evaluating triage decision making in the real world.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Nephronophthisis (NPHP), an autosomal recessive cystic kidney disease, leads to chronic renal failure in children. The genes mutated in NPHP1 and NPHP4 have been identified, and a gene locus associated with infantile nephronophthisis (NPHP2) was mapped. The kidney phenotype of NPHP2 combines ...
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1572-915X
    Keywords: asymptotic variance ; central limit theorem ; crossings ; estimation ; Gaussian processes ; Hermite polynomials ; hydroscience ; maxima ; spectral moment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Let X = (Xt, t ≥ 0) be a mean zero stationary Gaussian process with variance one, assumed to satisfy some conditions on its covariance function r. Central limit theorems and asymptotic variance formulas are provided for estimators of the square root of the second spectral moment of the process and for the number of maxima in an interval, with some applications in hydroscience. A consistent estimator of the asymptotic variance is proposed for the number of maxima.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1434-601X
    Keywords: PACS. 25.70.De Coulomb excitation – 23.20.-g Electromagnetic transitions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The reduced transition probability B(E2: 01 +→ 2+) of 72Zn has been measured for the first time by Coulomb excitation at intermediate energy. The result B(E2: 01 +→ 2+) = 1740±210 e2fm4, corresponds to the deformation parameter β2 of 0.23, in close agreement with expectations derived from the neighboring nucleus 73Zn. A discussion of the evolution of the N = 40 sub-shell closure as a function of Z is presented.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Inflammation research 24 (1988), S. 123-129 
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The injection of polyacrylamide gel (Bio Gel P-4, 200–400 mesh) into the subcutaneous area of mice, induced an inflammatory reaction which was characterized by the migration of leukocytes (mainly neutrophils) from the blood vessels towards the polyacrylamide gel. A rapid protein accumulation was observed during the migration of cells towards the inflamed site. Neutrophils released some pro-inflammatory lipids (prostaglandins, leukotriene B4) and lysozyme, these products were assayed in the granuloma exudate at various times of the granuloma formation. In our experimental inflammatory model, the results suggest that neutrophils that are attracted by the polyacrylamide gel produce eicosanoids and lysozyme, which could act synergistically to potentiate cell migration and protein accumulation in the inflamed site.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1569-8041
    Keywords: 5-FU continuous infusion ; metastatic breast carcinoma ; multidrug resistance ; verapamil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background:Verapamil (VER), a potent calcium channel blocker, hasbeen found to overcome P-gp-mediated multi-drug resistance (MDR) and toincrease sensitivity to cytotoxic anticancer drugs in refractory myeloma andnon-Hodgkin lymphoma. The value of VER for treating solid tumors is still amatter for debate. Patients and methods:We performed a prospective study in 99patients with anthracycline-resistant metastatic breast carcinoma (MBC), toassess the clinical effect of oral VER given in association with chemotherapy.Instead of retreating patients with anthracycline, we used a partiallynoncross-resistant regimen (VF), combining vindesine (VDS) and 5-fluorouracilgiven as a continuous infusion (5-FU CI). Patients were randomly assigned totwo cohorts. One cohort (47 patients) was treated in 28-day cycles, eachinvolving the administration of VDS (3 mg/m2 i.v. bolus on days 1and 10) and 5-FU CI, (400 mg/m2/day i.v. from day 1 to day 10). Theother cohort (52 patients) received the same VDS and 5-FU treatment and anadditional oral VER treatment (240 mg/day divided in 2 doses), from day 1 today 28 of each cycle. Patients were treated until progression. Results:The treatment was well tolerated and no side effects thatcould be attributed to VER were detected. Patients treated with VER had longeroverall survival (OS) (median OS: 323 vs. 209 days, P = 0.036) anda higher response rate (27% vs. 11%, P = 0.04) thanthose not given VER. Progression-free survival (PFS) was also longer but thedifference was not statistically significant (median PFS: 4.6 and 2.7 monthsfor the VER and non-VER groups respectively, P = 0.6). Conclusions:This clinical trial demonstrates that achemosensitizer, such as VER, can increase the survival of MBC patients withacquired anthracycline resistance.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neuro-oncology 46 (2000), S. 45-56 
    ISSN: 1573-7373
    Keywords: PBR ; associated proteins ; PRAX-1 ; cell differentiation ; cancer ; steroid biosynthesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Peripheral benzodiazepine receptors (PBRs) have been identified in various peripheral tissues as well as in glial cells in the brain. This review describes the tissue and subcellular distribution of the PBR in mammalian tissues and analyzes its many putative endogenous ligands. It deals with the pharmacological, structural and molecular characterization of the PBR, the proteins associated with the receptor (VDAC, ANC, PRAX-1) and their roles in cell growth and differentiation, cancer, steroid biosynthesis, and other physiological roles.
    Type of Medium: Electronic Resource
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