PubMed Journals Articles About "Criticality Experiments Enhance Nuclear Safety Security Effectiveness" RSS

19:19 EDT 20th March 2019 | BioPortfolio

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Showing "Criticality Experiments Enhance Nuclear Safety Security Effectiveness" PubMed Articles 1–25 of 21,000+

Nuclear and Radiological Source Security Culture Assessment of Radioactive Material Users at a University.

Securing radioactive sources has become increasingly important given the rising threat of radiological terrorism. While radiation safety has long been established in most applicable industries, the importance of nuclear and radiological source security has lagged behind in nonnuclear material specific industries, such as academic institutions and medical facilities. To evaluate the attitudes and behaviors regarding nuclear security culture, an assessment of nuclear and radiological material practices was de...

Social security of aging: problem statement.

The article raises the question of the need to consider aging in the context of social security. The author the author shows the main stages of the humanitarization of social security, the trend of development of theoretical ideas in the direction of «human security», which develops within the framework of «enhanced security». The main object of social security of the elderly people is the safety of physical and psychological health. The object of security is comprised of three components: safety of med...

Multiferroic quantum criticality.

The zero-temperature limit of a continuous phase transition is marked by a quantum critical point, which can generate physical effects that extend to elevated temperatures. Magnetic quantum criticality is now well established, and has been explored in systems ranging from heavy fermion metals to quantum Ising materials. Ferroelectric quantum critical behaviour has also been recently demonstrated, motivating a flurry of research investigating its consequences. Here, we introduce the concept of multiferroic q...

Critical dynamics, anesthesia and information integration: Lessons from multi-scale criticality analysis of voltage imaging data.

Critical dynamics are thought to play an important role in neuronal information-processing: near critical networks exhibit neuronal avalanches, cascades of spatiotemporal activity that are scale-free, and are considered to enhance information capacity and transfer. However, the exact relationship between criticality, awareness, and information integration remains unclear. To characterize this relationship, we applied multi-scale avalanche analysis to voltage-sensitive dye imaging data collected from animals...

Impact of Insulin Degludec in Type 2 Diabetes: Real-World Data on Effectiveness and Safety.

Real-world evidence on effectiveness and safety of insulin degludec (IDeg) in patients with diabetes is a priority. The aim of the study was to evaluate patterns of use and the long-term effectiveness and safety of IDeg in routine clinical practice.

Materials Characterization by Dynamic Nuclear Polarization Enhanced Solid-State NMR Spectroscopy.

High-resolution solid-state NMR spectroscopy is a powerful tool for the study of organic and inorganic materials because it can directly probe the symmetry and structure at nuclear sites, the connectivity/bonding of atoms and precisely measure inter-atomic distances. However, NMR spectroscopy is hampered by intrinsically poor sensitivity, consequently, the application of NMR spectroscopy to many solid materials is often infeasible. High-field dynamic nuclear polarization (DNP) has emerged as a technique to ...

Growing Critical: Self-Organized Criticality in a Developing Neural System.

Experiments in various neural systems found avalanches: bursts of activity with characteristics typical for critical dynamics. A possible explanation for their occurrence is an underlying network that self-organizes into a critical state. We propose a simple spiking model for developing neural networks, showing how these may "grow into" criticality. Avalanches generated by our model correspond to clusters of widely applied Hawkes processes. We analytically derive the cluster size and duration distributions ...

Real world data on effectiveness, safety and therapeutic drug monitoring of vedolizumab in patients with inflammatory bowel disease. A single center cohort.

The efficacy of vedolizumab (VDZ) has been demonstrated in clinical trials. The aim of this report is to evaluate the long-term effectiveness and safety of VDZ in a real-world cohort and to explore possible associations between concentration measurements of VDZ and treatment effectiveness.

Cohort study of electronic cigarette use: safety and effectiveness after 4 years of follow-up.

More than a decade after e-cigarette (e-cig) market launch, limited information are available on their safety after 24 months of use. In 2013, we started the first observational study assessing e-cig long-term effectiveness and safety, directly comparing tobacco smokers and e-cig users. Here we report the results after four years of follow-up.

Criticality Distinguishes the Ensemble of Biological Regulatory Networks.

The hypothesis that many living systems should exhibit near-critical behavior is well motivated theoretically, and an increasing number of cases have been demonstrated empirically. However, a systematic analysis across biological networks, which would enable identification of the network properties that drive criticality, has not yet been realized. Here, we provide a first comprehensive survey of criticality across a diverse sample of biological networks, leveraging a publicly available database of 67 Boole...

Electromigration experiments for studying transport parameters and sorption of cesium and strontium on intact crystalline rock.

This study aims to determine upscaling factors for the radionuclides' distribution coefficients (K) on crushed rocks to intact rock for the safety analysis of radionuclide migration from spent nuclear fuel in bedrock towards biosphere. Here we report the distribution coefficients for intact rock determined by electromigration sorption experiments and compare the results with those from recently performed batch sorption experiments. In total 34 rock samples, representing three typical rock types from Olkiluo...

Effectiveness and safety of dupilumab for the treatment of atopic dermatitis in a real-life French multicenter adult cohort.

Dupilumab is the first biologic available to treat atopic dermatitis (AD). Its effectiveness and safety were demonstrated in clinical trials.

Real-life effectiveness and safety of Glecaprevir/Pibrentasvir in 723 patients with chronic hepatitis C.

Efficacy and safety of Glecaprevir/Pibrentasvir (G/P) among hepatitis C virus (HCV) infected patients have been only investigated in clinical trials, and no real-life data are available yet. The aim of our study was to investigate effectiveness and safety of G/P in an Italian real-life setting.

The effectiveness, safety and cost-effectiveness of cytisine versus varenicline for smoking cessation in an Australian population: A study protocol for a randomised controlled non-inferiority trial.

Smoking cessation medications are effective but often underutilised because of costs and side effects. Cytisine is a plant-based smoking cessation medication with over 50 years of use in Central and Eastern Europe. While cytisine has been found to be well-tolerated and more effective than nicotine replacement therapy, direct comparison with varenicline have not been conducted. This study evaluates the effectiveness, safety and cost-effectiveness of cytisine compared with varenicline.

Non-dimensional analysis of the criticality of Li-ion battery thermal runaway behavior.

Lithium-ion batteries are the most popular used portable energy storage technology due to the relatively high energy density. While thermal instability induced safety concerns impede the pace of developing large scale applications, the practical applications have no tolerance for the catastrophic failure. To learn more about the characteristics of battery failure, the criticality of battery thermal runaway is studied in this paper. Semenov and Thomas models are employed to analyze the criticality of battery...

Safety and Effectiveness of Embolization for Chronic Subdural Hematoma: Systematic Review and Case Series.

Embolization of the middle meningeal artery has emerged as a minimally invasive means of managing subdural hematoma. The purpose of this study was to systematically review the literature on the safety and effectiveness of this treatment and to share our clinical experience.

Constraining Neutron Capture Cross Sections for Unstable Nuclei with Surrogate Reaction Data and Theory.

Obtaining reliable data for nuclear reactions on unstable isotopes remains an extremely important task and a formidable challenge. Neutron capture cross sections-crucial ingredients for models of astrophysical processes, national security applications, and simulations of nuclear energy generation-are particularly elusive, as both projectile and target in the reaction are unstable. We demonstrate a new method for determining cross sections for neutron capture on unstable isotopes, using ^{87}Y(n,γ) as a pro...

Three-year safety and two-year effectiveness of etanercept in patients with rheumatoid arthritis in Japan: Results of long-term postmarketing surveillance.

To evaluate the real-world safety and effectiveness of etanercept (ETN) in Japanese patients with rheumatoid arthritis.

Comparative effectiveness and safety of interventions for acute diarrhea and gastroenteritis in children: A systematic review and network meta-analysis.

Many interventions have shown effectiveness in reducing the duration of acute diarrhea and gastroenteritis (ADG) in children. Yet, there is lack of comparative efficacy of interventions that seem to be better than placebo among which, the clinicians must choose. Our aim was to determine the comparative effectiveness and safety of the pharmacological and nutritional interventions for reducing the duration of ADG in children.

Effectiveness and safety of hydroxychloroquine therapy with or without corticosteroid in patients with systemic lupus erythematosus.

The effectiveness and safety of hydroxychloroquine (HCQ) have not been fully validated in Japanese patients with systemic lupus erythematosus (SLE) in the clinical setting. This study evaluated the short-term effectiveness and continuation rate of HCQ therapy in Japanese patients with SLE in the clinical setting for 12 months.

Effectiveness and safety of pegvisomant: a systematic review and meta-analysis of observational longitudinal studies.

Acromegaly is a rare disease that often requires drug treatment to achieve control, with pegvisomant being one of the most widely used therapies. In the present paper, we aimed to obtain evidence regarding the effectiveness and safety of pegvisomant by reviewing real-world observational longitudinal studies.

Failure modes and effects analysis (FMEA) for the security of the supply chain system of the gas station in China.

With the popularity of automobiles, gas stations carry more gas supply and security risks. In order to effectively analyze the security of the supply chain system of the gas station, this study set the gas station as the center, then the upstream suppliers and downstream consumers were classified into three sub-systems, and the whole system was analyzed by using the method of failure modes and effects analysis (FMEA). A total of 50 typical cases of accidents at gas stations in China in the past 20 years hav...

Emotional security theory: An application to sibling bereavement.

There is a need for guiding theory to understand the experiences and outcomes of bereaved siblings, particularly from a family systems framework. The present study investigated the relevance of emotional security theory in a sample of 72 young adults who experienced sibling bereavement. We investigated (1) whether perceptions of prolonged parental grief predicted key aspects of emotional security (disengagement, preoccupation, and security), and (2) whether emotional security mediated a relation between per...

Field safety and effectiveness of new visceral leishmaniasis treatment regimens within public health facilities in Bihar, India.

In 2010, WHO recommended the use of new short-course treatment regimens in kala-azar elimination efforts for the Indian subcontinent. Although phase 3 studies have shown excellent results, there remains a lack of evidence on a wider treatment population and the safety and effectiveness of these regimens under field conditions.

Effectiveness and safety of accelerated (9 mW/cm) corneal collagen cross-linking for progressive keratoconus: a 24-month follow-up.

To examine the effectiveness and safety of accelerated corneal collagen cross-linking (CXL) for keratoconus over a 24-month period and to explore potential prognostic factors for post-treatment visual outcome and progression.

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