Boston College

About: Boston College is a education organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 9749 authors who have published 25406 publications receiving 1105145 citations. The organization is also known as: BC.

Highly flexible wide angle of incidence terahertz metamaterial absorber: Design, fabrication, and characterization

Abstract: We present the design, fabrication, and characterization of a metamaterial absorber which is resonant at terahertz frequencies. We experimentally demonstrate an absorptivity of 0.97 at 1.6 THz. Importantly, our absorber is only $16\text{ }\ensuremath{\mu}\text{m}$ thick, resulting in a highly flexible material that, further, operates over a wide range of angles of incidence for both transverse electric and transverse magnetic radiation.

Observation of Fermi-surface–dependent nodeless superconducting gaps in Ba0.6K0.4Fe2As2

Abstract: We have performed a high-resolution angle-resolved photoelectron spectroscopy study on the newly discovered superconductor Ba0.6K0.4Fe2As2 (Tc=37 K). We have observed two superconducting gaps with different values: a large gap (Δ~12 meV) on the two small hole-like and electron-like Fermi surface (FS) sheets, and a small gap (~6 meV) on the large hole-like FS. Both gaps, closing simultaneously at the bulk transition temperature (Tc), are nodeless and nearly isotropic around their respective FS sheets. The isotropic pairing interactions are strongly orbital dependent, as the ratio 2Δ/kBTc switches from weak to strong coupling on different bands. The same and surprisingly large superconducting gap due to strong pairing on the two small FSs, which are connected by the (π, 0) spin-density-wave vector in the parent compound, strongly suggests that the pairing mechanism originates from the inter-band interactions between these two nested FS sheets.

The Structure of Current Affect Controversies and Emerging Consensus

Abstract: For some years now, emotion researchers have debated a series of issues related to the structure of consciously experienced affective states The present article reviews evidence that current affective experience can be summarized by a structure that is anchored by two bipolar but independent dimensions of experience, pleasure and activation Four issues have presented themselves as central to the nature of this structure: the number of dimensions necessary to describe the space, the bipolarity of the dimensions, whether the structure displays a circumplex shape, and the definition of the activation dimension Points of consensus and the remaining controversies regarding each issue are presented

Putting the sharing economy into perspective

Abstract: We develop a conceptual framework that allows us to define the sharing economy and its close cousins and we understand its sudden rise from an economic-historic perspective. We then assess the sharing economy platforms in terms of the economic, social and environmental impacts. We end with reflections on current regulations and future alternatives, and suggest a number of future research questions.