Emotions, communicative responses, and relational consequences of boundary turbulence

This study examines how three different motivations for using an SNS (i.e., self-expression, belonging, and memory archiving) influence multi-facets of privacy boundary management on the platform mediated by self-extension to it. In recognition of the fact that information management on SNSs often goes beyond the “disclosure-withdrawal” dichotomy, the study investigates the relationships between the three SNS motives and privacy boundary management strategies (i.e., collective boundary and boundary turbulence management). An online survey with Facebook users (N = 305) finds that the three Facebook motivations are positively correlated to users’ self-extension to Facebook. The motivations for using Facebook are positively associated with the management of different layers of privacy boundaries (i.e., basic, sensitive, and highly sensitive), when Facebook self-extension is mediated. In addition, the three motives have indirect associations with potential boundary turbulence management mediated by Facebook self-extension. Extending the classic idea that privacy is deeply rooted in the self, the study demonstrates that perceiving an SNS as part of the self-system constitutes a significant underlying psychological factor that explains the linkage between motives for using SNSs and privacy management.

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Communicative Responses to Jealousy Scale

Communication Research Measures III ◽

10.4324/9780203730188-20 ◽

2019 ◽

pp. 217-224

Author(s):

Carolyn K. Shue

Keyword(s):

Communicative Responses

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Rapid mixing and exchange of deep-ocean waters in an abyssal boundary current

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.1904087116 ◽

2019 ◽

Vol 116 (27) ◽

pp. 13233-13238 ◽

Cited By ~ 15

Author(s):

Alberto C. Naveira Garabato ◽

Eleanor E. Frajka-Williams ◽

Carl P. Spingys ◽

Sonya Legg ◽

Kurt L. Polzin ◽

...

Keyword(s):

Mixed Boundary ◽

Deep Ocean ◽

Global Ocean ◽

Boundary Current ◽

Overturning Circulation ◽

Two Factors ◽

Major Branch ◽

Boundary Turbulence ◽

Stratified Ocean ◽

Dynamical Instabilities

The overturning circulation of the global ocean is critically shaped by deep-ocean mixing, which transforms cold waters sinking at high latitudes into warmer, shallower waters. The effectiveness of mixing in driving this transformation is jointly set by two factors: the intensity of turbulence near topography and the rate at which well-mixed boundary waters are exchanged with the stratified ocean interior. Here, we use innovative observations of a major branch of the overturning circulation—an abyssal boundary current in the Southern Ocean—to identify a previously undocumented mixing mechanism, by which deep-ocean waters are efficiently laundered through intensified near-boundary turbulence and boundary–interior exchange. The linchpin of the mechanism is the generation of submesoscale dynamical instabilities by the flow of deep-ocean waters along a steep topographic boundary. As the conditions conducive to this mode of mixing are common to many abyssal boundary currents, our findings highlight an imperative for its representation in models of oceanic overturning.

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