3,781 research outputs found

    Impact on Hybrid Composite Materials

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    Imaging of ischemia, obstruction and infection in the abdomen

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    Intestinal ischemia is a serious condition that continues to be associated with mortalities in excess of 70%. Intestinal obstruction and gastrointestinal tract sepsis are common conditions, accounting for a large proportion of patients admitted to emergency departments with acute abdominal symptoms. This article discusses the imaging methods and key findings of these entities in the emergency radiology department. The article includes imaging examples, diagnostic options, protocol selections, diagnostic criteria, and differential diagnoses

    Raman scattering in pathology

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    Smith ZJ, Huser T, Wachsman-Hogiu S. Raman scattering in pathology. Analytical Cellular Pathology. 2012;35(3):145-163

    Aerospace medicine and biology: A continuing bibliography with indexes

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    This bibliography lists 138 reports, articles, and other documents introduced into the NASA scientific and technical information system in Jun. 1980

    Banana Nutrition

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    Banana Nutrition - Function and Processing Kinetics covers the nutritional aspects of the banana plant and fruit. The book contains substantial scientific information written in an easy-to-understand format. The chapters include information on pharmacological aspects of banana; banana bioactives: absorption, utilization, and health benefits; banana pseudo-stem fiber: preparation, characteristics, and applications; banana drying kinetics and technologies; and integrating text mining and network analysis for topic detection from published articles on banana sensory characteristics. All the chapters contain recent advances in science and technology regarding the banana that will appeal to farmers, plant breeders, food industry, investors, and consumers as well as students and researchers. Readers will harness valuable information about the banana in controlling food security and non-communicable nutrition-related human illnesses

    The Development of Hyaluronan-Based Contract Agents for the Intraoperative Detection of Pancreatic Tumors

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    Pancreatic ductal adenocarcinoma is highly lethal and surgical resection is the only potential curative treatment for the disease. Tumor-specific intraoperative fluorescence imaging could improve staging and surgical resection, thereby improving prognosis. In the first study, hyaluronic acid derived NPs with physico-chemically entrapped indocyanine green, termed NanoICG, were utilized for intraoperative near infrared fluorescence detection of pancreatic cancer. NanoICG accumulated significantly in an orthotopic pancreatic ductal adenocarcinoma model with safety profile both in vitro and in vivo. To maximize tumor signal, while minimizing signal in healthy pancreas and RES capture of macromolecules, in the next study, we describe the rational development of a series of hyaluronic acid (HA) conjugates that vary in molecular weight and are conjugated to near-infrared fluorescent (NIRF) dyes that have differences in hydrophilicity, serum protein binding affinity, and clearance mechanism. We systematically investigated the roles of each of these properties on tumor accumulation, relative biodistribution, and the impact of intraoperative imaging of orthotopic, syngeneic pancreatic cancer. Overall, each HA-NIRF conjugate displayed intra-pancreatic tumor enhancement compared to uninvolved pancreas at 24 and 96 h. Regardless of HA molecular weight, Cy7.5 conjugation directed biodistribution to the liver, spleen, and bowels. Conjugation of IRDye-800 to 5 and 20 kDa HA resulted in low liver and spleen signal, while preserving tumor contrast enhancement up to 14-fold compared to healthy pancreas. When IRDye800 was conjugated to 100 kDa HA, the conjugate preferentially distributed to RES organs. When assessing the imaging efficacy of HA-based conjugates in hepatic metastases, those that accumulated to the liver utmost (HA100k-Cy7.5, HA100k-IRDye800, NanoICG) turned to aid the identification of hepatic malignancy with hypo-contrast. These studies demonstrate that by tuning HA molecular weight and the physicochemical properties of the conjugated moiety, in this case a NIRF probe, peritoneal biodistribution can be substantially altered to achieve optimized delivery to tumors with robust contrast enhancement for intraoperative imaging to abdominal tumors. Aside from assisting the accurate delineation of primary tumor, HA-NIRF conjugates demonstrated potential for identification of occult metastases in the intraoperative setting, as a versatile tool for accurate staging

    A state-of-the-art review of non-destructive testing image fusion and critical insights on the inspection of aerospace composites towards sustainable maintenance repair operations

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    Non-destructive testing (NDT) of aerospace structures has gained significant interest, given its non-destructive and economic inspection nature enabling future sustainable aerospace maintenance repair operations (MROs). NDT has been applied to many different domains, and there is a number of such methods having their individual sensor technology characteristics, working principles, pros and cons. Increasingly, NDT approaches have been investigated alongside the use of data fusion with the aim of combining sensing information for improved inspection performance and more informative structural health condition outcomes for the relevant structure. Within this context, image fusion has been a particular focus. This review paper aims to provide a comprehensive survey of the recent progress and development trends in NDT-based image fusion. A particular aspect included in this work is providing critical insights on the reliable inspection of aerospace composites, given the weight-saving potential and superior mechanical properties of composites for use in aerospace structures and support for airworthiness. As the integration of NDT approaches for composite materials is rather limited in the current literature, some examples from non-composite materials are also presented as a means of providing insights into the fusion potential
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