45,608 research outputs found

    Cost-effectiveness of diagnostic laparoscopy for assessing resectability in pancreatic and periampullary cancer.

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    Surgical resection is the only curative treatment for pancreatic and periampullary cancer, but many patients undergo unnecessary laparotomy because tumours can be understaged by computerised tomography (CT). A recent Cochrane review found diagnostic laparoscopy can decrease unnecessary laparotomy. We compared the cost-effectiveness of diagnostic laparoscopy prior to laparotomy versus direct laparotomy in patients with pancreatic and periampullary cancer with resectable disease based on CT scanning

    Cost-Effectiveness Analysis of Endoscopic Ultrasound versus Magnetic Resonance Cholangiopancreatography in Patients with Suspected Common Bile Duct Stones.

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    Patients with suspected common bile duct (CBD) stones are often diagnosed using endoscopic retrograde cholangiopancreatography (ERCP), an invasive procedure with risk of significant complications. Using endoscopic ultrasound (EUS) or Magnetic Resonance CholangioPancreatography (MRCP) first to detect CBD stones can reduce the risk of unnecessary procedures, cut complications and may save costs

    Multimodal 3D Object Detection from Simulated Pretraining

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    The need for simulated data in autonomous driving applications has become increasingly important, both for validation of pretrained models and for training new models. In order for these models to generalize to real-world applications, it is critical that the underlying dataset contains a variety of driving scenarios and that simulated sensor readings closely mimics real-world sensors. We present the Carla Automated Dataset Extraction Tool (CADET), a novel tool for generating training data from the CARLA simulator to be used in autonomous driving research. The tool is able to export high-quality, synchronized LIDAR and camera data with object annotations, and offers configuration to accurately reflect a real-life sensor array. Furthermore, we use this tool to generate a dataset consisting of 10 000 samples and use this dataset in order to train the 3D object detection network AVOD-FPN, with finetuning on the KITTI dataset in order to evaluate the potential for effective pretraining. We also present two novel LIDAR feature map configurations in Bird's Eye View for use with AVOD-FPN that can be easily modified. These configurations are tested on the KITTI and CADET datasets in order to evaluate their performance as well as the usability of the simulated dataset for pretraining. Although insufficient to fully replace the use of real world data, and generally not able to exceed the performance of systems fully trained on real data, our results indicate that simulated data can considerably reduce the amount of training on real data required to achieve satisfactory levels of accuracy.Comment: 12 pages, part of proceedings for the NAIS 2019 symposiu

    The MC@NLO 3.3 Event Generator

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    This is the user's manual of MC@NLO 3.3. This package is a practical implementation, based upon the HERWIG event generator, of the MC@NLO formalism, which allows one to incorporate NLO QCD matrix elements consistently into a parton shower framework. Processes available in this version include the hadroproduction of single vector and Higgs bosons, vector boson pairs, heavy quark pairs, single top, lepton pairs, and Higgs bosons in association with a W or Z. Spin correlations are included for all processes except ZZ and WZ production. This document is self-contained, but we emphasise the main differences with respect to previous versions

    IDENTIFIKASI EKSPRESI GEN SEL SARAF HASIL DIFERENSIASI STEM CELL MESENKIMAL SUMSUM TULANG (MSCS) YANG DIINDUKSI EKSTRAK METANOL DAUN SIKHOHKHOH (CHROMOLAENA ODORATA) MENGGUNAKAN REAL TIME-PCR

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    ABSTRAKMesenchymal Stem Cell (MSCs) dapat mengalami transdiferensiasi menjadi sel saraf dengan penambahan growth factor berupa senyawa kimia pada medium kultur. Tumbuhan Sikhohkhoh (Chromolaena odorata) mengandung senyawa kimia aktif seperti karotenoid dan flavonoid yang dapat menginisiasi MSCs menjadi sel saraf. Penelitian ini bertujuan untuk mengetahui potensi induksi ekstrak metanol daun C. odorata terhadap transdiferensiasi MSCs sumsum tulang menjadi sel saraf serta mengidentifikasi ek spresi gen sel saraf menggunakan metode real time-PCR dan elektroforesis gel agarosa. Penelitian ini dilaksanakan di Laboratorium Riset Histologi Jurusan Biologi FMIPA dan Laboratorium Riset Fakultas Kedokteran Hewan dari bulan Februari sampai September 2017. Penelitian ini menggunakan metode Rancangan Acak Lengkap (RAL) dengan 5 perlakuan 4 ulangan. Perlakuan berupa penambahan ekstrak daun Sikhohkhoh (Chromolaena odorata) yang terdiri dari dosis M0 0.0 mg/ml sebagai kontrol, M10.7 mg/ml, M2 0.8 mg/ml, M3 0.9 mg/ml, M4 1.0 mg/ml. Parameter yang diukur adalah jumlah transdiferensiasi MSCs menjadi sel saraf dengan analisis ANAVA, identifikasi gen Real Time-PCR dengan analisis deskriptif kurva amplifikasi, melt peak dan melt curve serta identifikasi gen elektroforesis gel agarosa. Hasil penelitian menunjukkan bahwa ekstrak C. odorata berpengaruh nyata terhadappenginduksian jumlah trandiferensiasi sel saraf (P< 0.05) secara berturut-turut dari dosis paling berpengaruh yaitu M2 (0.8 mg/mL), M1 (0.7 mg/mL) dan M3 (0.9 mg/mL) dengan masing-masing nilai rataan 33.24, 19.00, 14.25 dan uji molekuler mengunakan real time-PCR menunjukkan bahwa gen yang teramplifikasi positifgen saraf serta terkonfirmasi dengan elektroforesis gel agarosa. Kata Kunci : Mesenchymal Stem Cell (MSCs), transdiferensiasi, daun Sikhohkhoh(Chromolena odarata), real-time PCR, sel saraf

    The MC@NLO 3.3 Event Generator

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    This is the user's manual of MC@NLO 3.3. This package is a practical implementation, based upon the HERWIG event generator, of the MC@NLO formalism, which allows one to incorporate NLO QCD matrix elements consistently into a parton shower framework. Processes available in this version include the hadroproduction of single vector and Higgs bosons, vector boson pairs, heavy quark pairs, single top, lepton pairs, and Higgs bosons in association with a W or Z. Spin correlations are included for all processes except ZZ and WZ production. This document is self-contained, but we emphasise the main differences with respect to previous versions
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