Search results for "target [deuteron]"
showing 10 items of 159 documents
Instance-Based Multi-Label Classification via Multi-Target Distance Regression
2021
Interest in multi-target regression and multi-label classification techniques and their applications have been increasing lately. Here, we use the distance-based supervised method, minimal learning machine (MLM), as a base model for multi-label classification. We also propose and test a hybridization of unsupervised and supervised techniques, where prototype-based clustering is used to reduce both the training time and the overall model complexity. In computational experiments, competitive or improved quality of the obtained models compared to the state-of-the-art techniques was observed. peerReviewed
Novel mutations of the ABCA12, KRT1 and ST14 genes in three unrelated newborns showing congenital ichthyosis.
2022
Abstract Background Congenital ichthyosis (CI) is a heterogeneous group of genetic disorders characterized by generalized dry skin, scaling and hyperkeratosis, often associated to erythroderma. They are rare diseases, with overall incidence of 6.7 in 100,000. Clinical manifestations are due to mutations in genes mostly involved in skin barrier formation. Based on clinical presentation, CI is distinguished in non-syndromic and syndromic forms. To date, mutations of more than 50 genes have been associated to different types of CI. Cases presentation We report on three Italian unrelated newborns showing clinical signs compatible with different forms of CI of variable severity, namely Harlequin…
Neutron yield from carbon, light- and heavy-water thick targets irradiated by 40MeV deuterons
2009
Abstract Angular and energy distributions of neutrons produced by the interaction of deuterons of 40 MeV in carbon, light- and heavy-water targets, in which they are stopped, have been measured by the activation method. A discrepancy with a time-of-flight measurement for d + C has been found. The results are compared with a Monte-Carlo calculation and are discussed in the frame of building a deuteron-to-neutron converter for the SPIRAL2 radioactive ion-beam facility.
The COMPASS experiment at CERN
2007
The COMPASS experiment makes use of the CERN SPS high-intensitymuon and hadron beams for the investigation of the nucleon spin structure and the spectroscopy of hadrons. One or more outgoing particles are detected in coincidence with the incoming muon or hadron. A large polarized target inside a superconducting solenoid is used for the measurements with the muon beam. Outgoing particles are detected by a two-stage, large angle and large momentum range spectrometer. The setup is built using several types of tracking detectors, according to the expected incident rate, required space resolution and the solid angle to be covered. Particle identification is achieved using a RICH counter and both…
Rationale and design of the CRAFT (Continuous ReAssessment with Flexible ExTension in Rare Malignancies) multicenter phase II trial.
2021
Background Approvals of cancer therapeutics are primarily disease entity specific. Current molecular diagnostic approaches frequently identify actionable alterations in rare cancers or rare subtypes of common cancers for which the corresponding treatments are not approved and unavailable within clinical trials due to entity-related eligibility criteria. Access may be negotiated with health insurances. However, approval rates vary, and critical information required for a scientific evaluation of treatment-associated risks and benefits is not systematically collected. Thus clinical trials with optimized patient selection and comprehensive molecular characterization are essential for translati…
Cancer Stem Cells Sensitivity Assay (STELLA) in Patients with Advanced Lung and Colorectal Cancer: A Feasibility Study.
2015
Background Cancer stem cells represent a population of immature tumor cells found in most solid tumors. Their peculiar features make them ideal models for studying drug resistance and sensitivity. In this study, we investigated whether cancer stem cells isolation and in vitro sensitivity assay are feasible in a clinical setting. Methods Cancer stem cells were isolated from effusions or fresh cancer tissue of 23 patients who progressed after standard therapy failure. Specific culture conditions selected for immature tumor cells that express markers of stemness. These cells were exposed in vitro to chemotherapeutic and targeted agents. Results Cancer stem cells were extracted from liver metas…
Liquid Biopsy in Colorectal Cancer
2017
Colorectal cancer (CRC) is the third most common cancer worldwide. Oncological CRC treatment is changing gradually replacing ancient drugs with the newest targeted agents (target therapy) and immunotherapy. The correct use of these molecular agents is based on a series of genetic evaluations able to predict treatment response. The tissue evaluation of these predictors is generally fully of serious limitations among which the invasiveness of the tissue biopsy procedure and its non-informative quality compared to the entire neoplastic mass. For these reasons, liquid biopsy could represent an ideal tool to obtain easily and quickly the necessary information to decide the best therapeutic strat…
Dilemma in metastatic colorectal cancer: VEGF versus EGRF targeting
2013
Abstract: The modern approach for metastatic colorectal cancer (mCRC) patients is based on the identification of oncogenic pathways, which could be targeted by specific molecules. Vascular endothelial growth factor (VEGF)- and epithelial growth factor receptor (EGFR)-related pathways represent the most important biological mechanisms for cancer development and progression. However, the most significant results by VEGF and EGFR targeting could be achieved through the combination of these drugs with standard chemotherapeutic regimens. These strategies aim to improve the resectability of liver and lung metastases. For those patients who cannot be eligible for metastases resection, a 'continuum…
How to find the Ariadne's thread in the labyrinth of salvage treatment options for metastatic colorectal cancer?
2014
Abstract: Since a chance for cure was found out in metastatic colorectal cancer (mCRC) patients undergoing a resection of liver and lung metastases, high tumor shrinkage by chemotherapy regimens and their combination with targeted agents have been addressed in potentially resectable mCRC. However, most mCRC patients cannot reach this opportunity because of tumor burden or metastatic sites. For these patients a salvage systemic therapy could be offered to prolong survival. To date, a huge number of clinical trials provided some evidences for the achievement of this goal. A lot of chemotherapeutic regimens in combination with biological therapies are now available. We tried to propose a simpl…
HER2-positive male breast cancer: an update.
2010
Laura Ottini1, Carlo Capalbo2, Piera Rizzolo1, Valentina Silvestri1, Giuseppe Bronte3, Sergio Rizzo3, Antonio Russo31Department of Experimental Medicine, “Sapienza” University of Rome, Rome, Italy; 2Medical Oncology, IDI-IRCCS, Rome, Italy; 3Department of Surgical and Oncological Sciences, Section of Medical Oncology, University of Palermo, Palermo, ItalyAbstract: Although rare, male breast cancer (MBC) remains a substantial cause for morbidity and mortality in men. Based on age frequency distribution, age-specific incidence rate pattern, and prognostic factor profiles, MBC is considered similar to postmenopausal breast cancer (BC). Compared with female BC (FBC), MBC cas…