conclusions available shields for the thyroid and eyes should be implemented in clinical practice. further research is needed to demonstrate the prevalence of shielding in the clinical setting. results only a limited number of studies have been performed on the use of shields for the eyes and thyroid, but the evidence shows an overall benefit to their use. this study demonstrates how thyroid sh...

background: polyethylene composites including boron can be used as an effective neutron shield. our investigation focuses on manufacturing borated polyethylene nano-composite. the purpose of this study is to design a radiation shield for use in both neutron and gamma fields. materials and methods: borated polyethylene shields containing 2%, and 5% weight percentage of boron nano-particles were ...

background: it has recently been shown that the particle size of materials used for radiation shielding can affect the magnitude of radiation attenuation. over the past years, application of nano-structured materials in radiation shielding has attracted attention world-wide. the purpose of this study was to investigate the shielding properties of the lead-free shields containing micro and nano-...

The Shields-Harary numbers are a class of graph parameters thatmeasure a certain kind of robustness of a graph, thought of as a network of fortified reservoirs, with reference to a given cost function. We prove a result about the Shields-Harary numbers with respect to concave continuous cost functions which will simplify the calculation of these numbers for certain classes of graphs, including ...

Testing, as a form of retrieval, can enhance learning but it can also induce forgetting of related memories, a phenomenon known as retrieval-induced forgetting (RIF). In four experiments we explored whether selective retrieval and selective restudy of target memories induce forgetting of related memories with or without initial retrieval of the entire learning set. In Experiment 1, subjects stu...

Companies can use both debt and non-debt tax shields to accomplish avoidance. Using a quasi-experiment in China which the government implemented deleveraging regulations selected industries 2015, this study provides novel evidence of effect mandatory on corporate The results show that implementing leads an increase degree Mechanism analyses indicate curbs company's inclination take advantage be...

1Information Center for the Environment, Department of Environmental Science and Policy, University of California, 1 Shields Avenue, Davis, California 95616, USA; 2PRBO Conservation Science, 3820 Cypress Drive #11, Petaluma, California 94954, USA; 3Avian Conservation and Ecology Lab, Department of Wildlife, Fish and Conservation Biology, University of California, 1 Shields Avenue, Davis, Califo...

This is not a conformist book. Its thesis is bold: that political theorists and mainstream commentators have been looking for democracy in all the wrong places. The New Left's call for a reinvigorated, participatory democracy aligned " around contentious moral questions that animate citizens rather than bureaucratic, technical, or economic issues that tend to bewilder and subdue them " has been...