436 research outputs found
GIS Applications
No full textThis roundtable discusses various GIS applications in different fields. Purdue\u27s Center for Regional Development presents harmonized space-time data and measures: a study of race, ethnicity and poverty . Prof. Darrell Schulze from Agronomy and Purdue Center for Environmental and Regulatory Information Systems showcase SoilExplorer, a soil map application for teaching and learning soil science. Mark Ehle, Tippcanoe County GIS administrator, introduces the county\u27s GIS services and maps
Lung Metastatectomy: Can Laser-Assisted Surgery Make a Difference?
No full textBackground: Resection of lung metastases with curative intention in selected patients is associated with prolonged survival. Laser–assisted resection of lung metastases results in complete resection of a high number of lung metastases, while preserving lung parenchyma. However, data concerning laser lung resections are scarce and contradictory. The aim of this study was to conduct a systematic review to evaluate the utility of laser-assisted pulmonary metastasectomy. Methods: An electronic search in MEDLINE (via PubMed), complemented by manual searches in article references, was conducted to identify eligible studies. Results: Fourteen studies with a total of 1196 patients were included in this metanalysis. Laser-assisted surgery (LAS) for lung metastases is a safe procedure with a postoperative morbidity up to 24.2% and almost zero mortality. LAS resulted in the resection of a high number of lung metastases with reduction of the lung parenchyma loss in comparison with conventional resection methods. Survival was similar between LAS and conventional resections. Conclusion: LAS allows radical lung-parenchyma saving resection of a high number of lung metastases with similar survival to conventional methods
Correction to: Magnetic Characterization of Ferromagnetic Shape Memory Components Under Defined Mechanical Loading
No full textS.353The article ""Magnetic Characterization of Ferromagnetic Shape Memory Components Under Defined Mechanical Loading"", written by Fabian Ehle, Peter Neumeister, Eric Haufe, and Holger Neubert was originally published electronically on the publisher's internet portal on 29 January, 2020 without open access. With the author(s)' decision to opt for Open Choice the copyright of the article changed on 08 April 2021 to ©The Author(s) 2020 and the article is forthwith distributed under a Creative Commons Attribution 4.0. International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons License, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons License, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons License and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. The original article has been corrected.7Nr.
Der Effekt innovativer Immunsuppressiva auf die akute Transplantatabstoßung im allogenen Nierentransplantations-Modell in der Maus
No full textEffekt der Hemmung der Cathepsin S-/PAR-2-Achse und der MCP-1-/CCR2-Achse auf die akute Allotransplantatabstoßung im Modell der Nierentransplantation in der Maus
The Gaps We Choose to Fill and How We Choose to Fill Them: Readers\u27 Creation of Turkish German Identity in Texts by Zehra Çirak
No full textThis thesis explores why readers insist on interpreting Zehra Çirak\u27s texts in light of her Turkish German background when she claims that her texts have little to do with her Turkish heritage and are more universally applicable. While readers can interpret her texts without considering the author\u27s biography, thereby obtaining insights into their own personal identity, I suggest that it also makes sense for readers to interpret her texts with the author\u27s biography in mind because of current events and the history of Turkish migrant labor in Germany. To explore different possible interpretations of her texts, I have categorized Çirak\u27s poetry, found in four of her volumes of poetry, Vogel auf dem Rücken eines Elefanten (1991), Fremde Flügel auf eigener Schulter (1994), Leibesübungen (2000), and In Bewegung (2008), into two broad groups. First, I look at the few poems in which Çirak overtly addresses alterity by discussing the alienation of Turks. In these texts, the speakers use Turkish words or images that link the texts to Çirak\u27s biography. Then I turn to look at poems that can only metaphorically be interpreted as addressing Turkish German integration into mainstream German society and discuss how even though the figurative language Çirak employs make her texts applicable to other situations or interpretations, the texts lend themselves to being read in light of multiculturalism. In both of these categories of poetry, Çirak uses metaphor to address alterity without pandering to stereotypes or setting categorical limits on Turks, Germans, or other members of her readership
Surface and Material Modifications of Tempered Steel after Precision Grinding with Electroplated Coarse Grained Diamond Wheels
No full textAbstractOne particular kind of engineered grinding wheels are precisely profiled grinding tools with flattened coarse diamond grains, primarily used for machining of brittle materials. Because of their grain geometries, they are also expected to introduce mechanical strains into steel workpieces generating a work hardening effect. Also low surface roughnesses combined with favorable compressive residual stresses are targeted. In this paper the feasibility of this process technology is investigated and possible adverse aspects are identified. These findings can be used in future to further develop the process towards higher forces and speeds and thus conditions close to industrial applications in conventional grinding of steel parts
Lung Resections for Elderly Patients with Lung Metastases: A Comparative Study of the Postoperative Complications and Overall Survival
No full textBackground: Pulmonary metastasectomy (PM) is an established treatment option for selected patients with stage IV solid tumors. The aim of this study was to investigate the feasibility of and survival rate in PM for elderly patients. Methods: We retrospectively analyzed all of the patients who underwent PM with curative intention at our institution. The patients were categorized into two groups: the elderly group (≥70 years old) and the non-elderly group (<70 years old). Results: The elderly group consisted of 222 patients versus 538 patients in the non-elderly group. The median number of resected metastases was 2 ± 3 in the elderly group and 4 ± 5 in the non-elderly group (p < 0.01). No difference in the rate of postoperative complications was observed between the two groups (p = 0.3). The median length of hospital stay in each group was comparable (10 ± 5 vs. 10 ± 4.3 days, p = 0.3). The 5-year survival rate was 67% in the elderly group and 78% in the non-elderly group (p = 0.117). In the univariate analysis, COPD was associated with poor survival in the elderly group (p = 0.002). Conclusion: The resection of pulmonary metastases in elderly patients is safe, is not associated with increased risks of postoperative complication, and the survival benefit is not reduced in selected patients
Can Chest Ultrasound Replace Chest X-ray in Thoracic Surgery?
No full textBackground: There is growing evidence that supports the use of chest ultrasound (CUS) versus conventional chest X-ray (CXR) in order to diagnose postoperative complications. However, data regarding its use after thoracic surgery are scarce and contradictory. The aim of this study was to conduct a systematic review to evaluate the accuracy of CUS after thoracic surgery. Methods: An electronic search in MEDLINE (via PubMed), complemented by manual searches in article references, was conducted to identify eligible studies. Results: Six studies with a total of 789 patients were included in this meta-analysis. Performing CXR decreased in up to 61.6% of cases, with the main reasons for performing CXR being massive subcutaneous emphysema or complex hydrothorax. Agreement between CUS and routine-based therapeutic options was, in some studies, up to 97%. Conclusions: The selectively postoperative use of CUS may reduce the number of routinely performed CXR. However, if CUS findings are inconclusive, further radiological examinations are obligatory
Electron Microscopic Characterization of Mechanically Modified Surface Layers of Deep Rolled Steel
No full textAbstractProcess Signatures describe the relationship between the applied material loads and the resulting surface modification according to the predominant effect of the production process used. This approach is supposed to allow the adjustment of surface layer properties prior to the production process. In this paper, the surface modifications of turned, turned + deep rolled and deep rolled metastable austenitic steel with predominantly thermo-mechanical/ mechanical effects are analyzed by electron microscopic methods like Electron Backscatter Diffraction (EBSD) and Transmission Electron Microscope (TEM) analysis. The modified surface layers show an increase in hardness as a result of the induced Hertzian pressures. TEM investigations of FIB-lamellae cut from the surface zone of the turned/ turned + deep rolled workpiece reveal a nanocrystalline microstructure. A superposition of surface modifications from turning and deep rolling is identified in the turned + deep rolled workpiece
Perioperative Application of Levosimendan Optimizes Postoperative Renal Function and Organ Perfusion in Patients with Severe Heart Failure.
No full textBackground: Renal dysfunction and impaired organ perfusion are common concerns following cardiac surgery. Levosimendan, a calcium sensitizer inotropic drug, is investigated in this study for its potential to improve postoperative renal function and organ perfusion in patients with low preoperative ejection fraction and severe myocardial dysfunction after cardiac surgery. Methods: A retrospective analysis was conducted on 314 patients with preoperative heart failure who underwent cardiac surgery. Among them, 184 patients received perioperative adjunctive therapy with levosimendan, while 130 patients with similar characteristics received conventional treatment. Results: The perioperative administration of levosimendan resulted in a significantly lower need for renal replacement therapy (p < 0.001) and improvements in the serum creatinine levels, glomerular filtration rate, and creatinine clearance. Similarly, the C-reactive protein levels, blood pH, and lactic acid levels showed comparable improvements. Conclusions: The use of levosimendan was associated with a significant enhancement in postoperative renal function and a reduction in the need for renal replacement therapy. Furthermore, it resulted in a decrease in the extent of organ malperfusion. Postoperative inflammatory reactions and metabolic balance also exhibited improvements
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