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We describe a general design for a compact frequency comb-based optical time transfer and ranging node with a volume of 14L, a mass of 10 kg, and a power consumption of 46 W. We assess the residual noise from the comb-based system by making both ranging and time transfer measurements using these compact nodes over a 4.4 km free-space testbed. We demonstrate that this node design has the potential to support sub-femtosecond clock comparisons and sub-micron range measurements at averaging intervals of 1 s with a mean received power of 20 nW. This is more than sufficient to support future space-based distributed coherent sensing at observing frequencies beyond 1 THz. 

Despite little evidence of efficacy, public information campaigns have been a popular strategy for deterring migration. Advertising campaigns to dissuade would-be migrants from leaving home or seeking asylum are increasingly prevalent around the world, and Australia has devoted millions of dollars to these campaigns. Perhaps the most famous is the campaign launched in 2014, with the message: “No Way. You will not make Australia home.” In this article, I develop the concept of enforcement infrastructure to illustrate the relationships, technologies, actors, and policies that together facilitate enforcement of Australia’s borders and produce campaigns such as the “No Way” campaign. Just as infrastructure facilitates the production of value in other contexts, so too does the creation of enforcement infrastructure produce different types of value in the context of enforcement. Mapping the enforcement infrastructure highlights the different types of value produced by this constellation of actors, from profitable market research to reinforcing colonial logics of exclusion. 

In this paper, we build on feminist geographical methodological innovations that link theories about data transparency and multiplicity with praxis, suggesting how feminist methods can better reflect the messiness of data. We argue that two interrelated strategies, feminist periscoping and feminist visualization, can highlight the strengths across messy data sets while also being transparent about the gaps within the data. We illustrate this argument using two examples from research into public information campaigns developed to dissuade unauthorized migration to the US and Australia. Taken together, we argue, feminist periscoping and feminist visualization approaches are an effective way of analyzing and disseminating messy data. 

Geographers have been central to identifying and exploring the shifting spatialities of border enforcement and how different enforcement strategies alter the geography of state sovereignty. Migration-related public information campaigns (PICs) are one strategy that has received increasing attention from geographers and social scientists more broadly in recent years. While existing research examines the sites and spaces where PICs are distributed, as well as the affective content of their messaging, little research has examined the development of campaigns and the transnational connections that enable their deployment. This article draws on work in the fields of carceral circuitry and transnational enforcement networks in order to expand our understanding of affective governmentality as a transnational strategy of border governance. Based on data collected as part of a large-scale comparative study of the use of PICs by the US and Australian governments, we argue that this form of affective governmentality relies upon transnational circuits through which people, money, and knowledge move to enable the development and circulation of affective messaging. In doing so, we develop the concept of transnational affective circuitry to refer to the often contingent, temporary relations and connections that enable PICs to operate as a form of transnational affective governmentality aimed at hindering unauthorized migration. Our analysis illustrates the transnational connections that enable increasingly expansive and creative forms of border enforcement to emerge while also expanding the scope of examinations of affective governmentality to attend to the relations that undergird and enable this form of transnational governance. 

Abstract The Earth BioGenome Project has the extremely ambitious goal of generating, at scale, high-quality reference genomes across the entire Tree of Life. Currently in its first phase, the project is targeting family-level representatives and is progressing rapidly. Here we outline recommended standards and considerations in sample acquisition and processing for those involved in biodiverse reference genome creation. These standards and recommendations will evolve with advances in related processes. Additionally, we discuss the challenges raised by the ambitions for later phases of the project, highlighting topics related to sample collection and processing that require further development. 

Abstract In this paper, we detail the process of organising and facilitating a visualisation challenge as part of a larger project centring visual methods. We explore how the visualisation challenge specifically operated to highlight feminist epistemological and methodological principals, and practically, what worked and what didn't. We conclude that visualisation challenges offer exciting potential to jumpstart creative and innovative project development, but if a challenge is to be successful, context matters, and so too do practical and logical considerations. We believe that feminist visualisation challenges offer exciting models to share findings and data, learn from emerging research practices, and build community within and beyond the academy.