GLORIA

GEOMAR Library Ocean Research Information Access

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    In: The International Journal of High Performance Computing Applications, SAGE Publications, Vol. 25, No. 1 ( 2011-02), p. 3-60
    Abstract: Over the last 20 years, the open-source community has provided more and more software on which the world’s high-performance computing systems depend for performance and productivity. The community has invested millions of dollars and years of effort to build key components. However, although the investments in these separate software elements have been tremendously valuable, a great deal of productivity has also been lost because of the lack of planning, coordination, and key integration of technologies necessary to make them work together smoothly and efficiently, both within individual petascale systems and between different systems. It seems clear that this completely uncoordinated development model will not provide the software needed to support the unprecedented parallelism required for peta/ exascale computation on millions of cores, or the flexibility required to exploit new hardware models and features, such as transactional memory, speculative execution, and graphics processing units. This report describes the work of the community to prepare for the challenges of exascale computing, ultimately combing their efforts in a coordinated International Exascale Software Project.
    Type of Medium: Online Resource
    ISSN: 1094-3420 , 1741-2846
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2011
    detail.hit.zdb_id: 2017480-9
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    In: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery, SAGE Publications, Vol. 17, No. 1 ( 2022-01), p. 42-49
    Abstract: Up to 28% of patients may need mitral valve (MV) surgery after transcatheter edge-to-edge repair (TEER). This study evaluates the outcomes of minimally invasive MV surgery after TEER. Methods: International multicenter registry of minimally invasive MV surgery after TEER between 2013 and 2020. Subgroups were stratified by the number of devices implanted (≤1 vs 〉 1), as well as time interval from TEER to surgery (≤1 year vs 〉 1 year). Results: A total of 56 patients across 13 centers were included with a mean age of 73 ± 11 years, and 50% were female. The median Society of Thoracic Surgeons Predicted Risk of Mortality (STS PROM) score for MV replacement was 8% (Q1-Q3 = 5% to 11%) and the ratio of observed to expected mortality was 0.9. The etiology of mitral regurgitation (MR) prior to TEER was primary MR in 75% of patients and secondary MR in 25%. There were 30 patients (54%) who had 〉 1 device implanted. The median time between TEER and surgery was 252 days (33 to 636 days). Hemodynamics, including MR severity, MV area, and mean gradient, significantly improved after minimally invasive surgery and sustained to 1-year follow-up. In-hospital and 30-day mortality was 7.1%, and 1-year actuarial survival was 85.6% ± 6%. Conclusions: Minimally invasive MV surgery after TEER may be achieved as predicted by the STS PROM. Most patients underwent MV replacement instead of repair. As TEER is applied more widely, patients should be informed about the potential need for surgical intervention over time after TEER. These discussions will allow better informed consent and post-procedure planning.
    Type of Medium: Online Resource
    ISSN: 1556-9845 , 1559-0879
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2223439-1
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    In: Vascular and Endovascular Surgery, SAGE Publications, Vol. 44, No. 5 ( 2010-07), p. 334-340
    Abstract: We aimed to determine whether remote ischemic preconditioning (IP) reduces renal damage following elective open infrarenal abdominal aortic aneurysm (AAA) repair. Sequential common iliac clamping was used to induce remote IP in randomized patients. Urinary retinol binding protein (RBP) and albumin-creatinine ratio (ACR) were measured following induction and 3, 24, and 48 hours postoperatively. In controls (n = 22), median urinary RBP increased from 112 µg/mL (interquartile range [IQR] 96-173 µg/mL) preoperatively to 5919 µg/mL (IQR 283-17 788 µg/mL) at 3 hours. Preoperative urinary RBP in preconditioned patients was 96 µg/mL (IQR 50 to 229 µg/mL) preoperatively, rising to 1243 µg/mL (IQR 540 to 15400 µg/mL) at 3 hours. Although control patients’ median urinary RBP level was 5 times greater at 3 hours, there were no statistically significant differences in renal outcome indices. This trial could not confirm that remote IP reduces renal injury following elective open aneurysm surgery.
    Type of Medium: Online Resource
    ISSN: 1538-5744 , 1938-9116
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2010
    detail.hit.zdb_id: 2095223-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    In: Toxicologic Pathology, SAGE Publications, Vol. 41, No. 8 ( 2013-12), p. 1093-1105
    Abstract: In this study, male F344 rats were orally exposed to a single dose of aflatoxin B 1 (AFB 1 ) at 0, 50, 250, or 1,000 µg/kg body weight (BW) or repeated dose of 0, 5, 10, 25, or 75 µg/kg BW for up to 5 weeks. Biochemical and histological changes were assessed together with the formation of AFB 1 -lysine adduct (AFB-Lys) and liver foci positive for placental form glutathione S transferase (GST-P + ). In single-dose protocol, serum aspartate transaminase (AST), alanine transaminase (ALT), and alkaline phosphatase (ALP) showed dose-related elevation, with maximal changes observed ( 〉 100-fold) at day 3 after treatment. Animals that received 250 µg/kg AFB 1 showed concurrent bile duct proliferation, necrosis, and GST-P + hepatocytes at 3 day, followed by liver GST-P + foci appearance at 1 week. In repeated-dose protocol, bile duct proliferation and liver GST-P + foci co-occurred after 3-week exposure to 75 µg/kg AFB 1 , followed by proliferation foci formation after 4 week and dramatic ALT, AST, and CK elevations after 5 weeks. Liver GST-P + foci were induced temporally and in a dose-related manner. Serum AFB-Lys increased temporally at low doses (5–25 µg/kg), and reached the maximum after 2-week exposure at 75 µg/kg. This integrative study demonstrated that liver GST-P + cells and foci are sensitive biomarkers for AFB 1 toxic effect and correlated with bile duct proliferation and biochemical alterations in F344 rats.
    Type of Medium: Online Resource
    ISSN: 0192-6233 , 1533-1601
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
    detail.hit.zdb_id: 2056753-4
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 5
    In: Ear, Nose & Throat Journal, SAGE Publications
    Type of Medium: Online Resource
    ISSN: 0145-5613 , 1942-7522
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
    detail.hit.zdb_id: 2067528-8
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 6
    Online Resource
    Online Resource
    SAGE Publications ; 2007
    In:  Vascular and Endovascular Surgery Vol. 41, No. 3 ( 2007-06), p. 225-229
    In: Vascular and Endovascular Surgery, SAGE Publications, Vol. 41, No. 3 ( 2007-06), p. 225-229
    Abstract: Estimated glomerular filtration rate (eGFR) can be readily calculated from serum creatinine values. It is a more sensitive prognostic indicator than serum creatinine alone in patients undergoing thoracoabdominal or endovascular abdominal aortic aneurysm repair. The value of eGFR in patients undergoing open abdominal aortic aneurysm repair remains unclear. The preoperative eGFR was calculated for patients undergoing elective open infrarenal aortic aneurysm repair. Postoperative complications, perioperative mortality, and long-term survival were compared across eGFR and serum creatinine quartiles. The eGFR identified preoperative renal dysfunction in 33% of patients, whereas serum creatinine identified renal impairment in only 11%. The eGFR correlated with perioperative morbidity and long-term survival. Serum creatinine did not correlate with perioperative mortality or long-term survival. However, it did correlate with postoperative morbidity. The eGFR is a more sensitive index of preoperative renal function than serum creatinine and correlates with survival. It should replace serum creatinine as the standard index of renal function before open abdominal aortic aneurysm repair.
    Type of Medium: Online Resource
    ISSN: 1538-5744 , 1938-9116
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2007
    detail.hit.zdb_id: 2095223-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 7
    In: Vascular and Endovascular Surgery, SAGE Publications, Vol. 44, No. 6 ( 2010-08), p. 434-439
    Abstract: Remote ischemic preconditioning (RIPC) is a physiological mechanism whereby brief ischemia—reperfusion episodes attenuate damage by subsequent prolonged ischemic insults. It reduces myocardial injury following cardiac and aortic aneurysm surgery. We aimed to determine whether RIPC affects neurological or cardiac injury following carotid endarterectomy (CEA). Patients were preconditioned using 10 minutes of lower limb ischemia—reperfusion. The primary neurological outcome was saccadic latency deterioration. The primary cardiac outcome measure was increased in serum troponin I 〉 0.15 mg/dL. In all, 70 patients were randomized, of whom 55 completed the neurological surveillance protocol. Although there were fewer saccadic latency deteriorations in the RIPC arm, this did not reach statistical significance (32% versus 53%; P = .11). The primary cardiac outcome occurred in 1 patient in each arm (P = .97). There were no adverse events related to the preconditioning protocol. Remote ischemic preconditioning appears safe in patients with CEA. Large-scale trials are required to determine whether RIPC confers clinical benefits.
    Type of Medium: Online Resource
    ISSN: 1538-5744 , 1938-9116
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2010
    detail.hit.zdb_id: 2095223-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 8
    In: Advances in Methods and Practices in Psychological Science, SAGE Publications, Vol. 1, No. 4 ( 2018-12), p. 443-490
    Abstract: We conducted preregistered replications of 28 classic and contemporary published findings, with protocols that were peer reviewed in advance, to examine variation in effect magnitudes across samples and settings. Each protocol was administered to approximately half of 125 samples that comprised 15,305 participants from 36 countries and territories. Using the conventional criterion of statistical significance ( p 〈 .05), we found that 15 (54%) of the replications provided evidence of a statistically significant effect in the same direction as the original finding. With a strict significance criterion ( p 〈 .0001), 14 (50%) of the replications still provided such evidence, a reflection of the extremely high-powered design. Seven (25%) of the replications yielded effect sizes larger than the original ones, and 21 (75%) yielded effect sizes smaller than the original ones. The median comparable Cohen’s ds were 0.60 for the original findings and 0.15 for the replications. The effect sizes were small ( 〈 0.20) in 16 of the replications (57%), and 9 effects (32%) were in the direction opposite the direction of the original effect. Across settings, the Q statistic indicated significant heterogeneity in 11 (39%) of the replication effects, and most of those were among the findings with the largest overall effect sizes; only 1 effect that was near zero in the aggregate showed significant heterogeneity according to this measure. Only 1 effect had a tau value greater than .20, an indication of moderate heterogeneity. Eight others had tau values near or slightly above .10, an indication of slight heterogeneity. Moderation tests indicated that very little heterogeneity was attributable to the order in which the tasks were performed or whether the tasks were administered in lab versus online. Exploratory comparisons revealed little heterogeneity between Western, educated, industrialized, rich, and democratic (WEIRD) cultures and less WEIRD cultures (i.e., cultures with relatively high and low WEIRDness scores, respectively). Cumulatively, variability in the observed effect sizes was attributable more to the effect being studied than to the sample or setting in which it was studied.
    Type of Medium: Online Resource
    ISSN: 2515-2459 , 2515-2467
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 2904847-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 9
    In: Clinical Pediatrics, SAGE Publications, Vol. 53, No. 3 ( 2014-03), p. 243-249
    Abstract: Following a court decision ( Rosie D. v. Romney), the Medicaid program in Massachusetts launched the statewide Children’s Behavioral Health Initiative in 2008 to increase the recognition and treatment of behavioral health problems in pediatrics. We reviewed billing data (n = 64,194) and electronic medical records (n = 600) for well child visits in pediatrics in 2 practices to examine rates of behavioral health screening, problem identification, and treatment among children seen during the year before and 2 years after the program’s implementation. According to electronic medical records, the percentage of well child visits that included any form of behavioral health assessment increased significantly during the first 2 years of the program, and pediatricians significantly increased their use of standardized screens. According to billing data, behavioral health treatment increased significantly. These findings suggest that behavioral health screening and treatment have increased following the Rosie D. decision.
    Type of Medium: Online Resource
    ISSN: 0009-9228 , 1938-2707
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
    detail.hit.zdb_id: 2066146-0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 10
    In: Clinical Trials, SAGE Publications, Vol. 13, No. 6 ( 2016-12), p. 574-581
    Abstract: The provision of study results to research participants is supported by pediatric and adult literature. This study assessed adult cancer patient preferences surrounding aggregate result disclosure to study participants. Methods: A 46-item questionnaire was given to 250 adult cancer patients who had participated in oncology trials at a single center. Respondents answered questions surrounding their preferences for timing, content, and modality of communication for dissemination of study results. Results: Questionnaire completion rate was 76% (189/250). Most patients (92%) strongly felt a right to know study results. Patients preferred result dissemination via letter for trials with positive outcomes, but preferred in-person clinic visits for negative outcomes. Despite this, a majority of participants (59%) found letters acceptable to inform participants of negative results. Only a minority (36%) of the participants found Internet-based disclosure acceptable for negative trial results. Unfortunately, very few patients (8%) recalled having received the results for a study they participated in, and of these patients, less than half fully understood the results they were given. Conclusion: Most clinical trial participants feel they have a right to study result disclosure, regardless of trial outcome. In-person visits are preferred for negative results, but more feasible alternatives such as letters were still acceptable for the majority of participants. However, Internet-based disclosure was not acceptable to most participants in oncology trials. Time and cost allocations for result disclosure should be considered during grant and ethics board applications, and clear guidelines are required to help researchers share the results with patients.
    Type of Medium: Online Resource
    ISSN: 1740-7745 , 1740-7753
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2016
    detail.hit.zdb_id: 2159773-X
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...