There was an interesting discussion on this paper recently:
27,103 karma · joined December 31, 2018
https://aeon.co/essays/use-uncertainty-to-leverage-the-power...
Reactive programming is a programming paradigm whereby programs are internally represented by a dependency graph, which is used to automatically (re)compute parts of a program whenever its input changes. In practice reactive programming can only be used for some parts of an application: a reactive program is usually embedded in an application that is still written in ordinary imperative languages such as JavaScript or Scala. In this paper we investigate this embedding and we distill “the awkward squad for reactive programming” as 3 concerns that are essential for real-world software development, but that do not fit within reactive programming. They are related to long lasting computations, side-effects, and the coordination between imperative and reactive code. To solve these issues we design a new programming model called the Actor-Reactor Model in which programs are split up in a number of actors and reactors. Actors and reactors enforce a strict separation of imperative and reactive code, and they can be composed via a number of composition operators that make use of data streams. We demonstrate the model via our own implementation in a language called Stella.
There was a recent post about HN's undocumented features: https://news.ycombinator.com/item?id=23439437
In this study, we explore how top executives affect the well-being of multiple stakeholders and long-run organizational outcomes. In the context of the 2008 global financial crisis (GFC), we examine how CEO greed impacts firms’ stance toward corporate social responsibility (CSR) prior to the onset of the GFC and how this, in turn, shapes firms’ fate during and after the GFC. We argue that CEO greed will be negatively associated with CSR, because in their unbridled pursuit of personal wealth, greedy CEOs are more likely to exhibit myopic behaviors and neglect investment in CSR. We also adopt a person-pay interactionist logic to theorize that the willingness of greedy executives to invest in CSR will be especially sensitive to different types of pay instruments. Next, we build on recent findings from research on CSR that suggest that stakeholder engagement is a defining feature of resilient organizations. We expect that, due to low CSR investment, firms led by greedy CEOs will experience greater losses in the short run and will take longer time to recover from the 2008 GFC. For a sample of 301 CEOs of public U.S. organizations, we analyzed the stock prices and found general support for our hypotheses.
Nucleic acid-based materials enable sub-nanometer precision in self-assembly for fields including biophysics, diagnostics, therapeutics, photonics, and nanofabrication. However, structural DNA nanotechnology has been limited to substantially hydrated media. Transfer to organic solvents commonly used in polymer and peptide synthesis results in the alteration of DNA helical structure or reduced thermal stabilities. Here we demonstrate that gamma-modified peptide nucleic acids (γPNA) can be used to enable formation of complex, self-assembling nanostructures in select polar aprotic organic solvent mixtures. However, unlike the diameter-monodisperse populations of nanofibers formed using analogous DNA approaches, γPNA structures appear to form bundles of nanofibers. A tight distribution of the nanofiber diameters could, however, be achieved in the presence of the surfactant SDS during self-assembly. We further demonstrate nanostructure morphology can be tuned by means of solvent solution and by strand substitution with DNA and unmodified PNA. This work thereby introduces a science of γPNA nanotechnology.
The state-of-art broadband THz sources can contribute to the development of short-range 6G communications. This paper has demonstrated the feasibility of forming the controllable sequence of THz subpulses in the temporal domain and the corresponding quasidiscrete spectrum by the interference of two THz pulses with an exponential chirp. Moreover, due to small time delay between these pulses the temporal and spectral structures are similar to each other (so-called “linkage relation”). This will benefit information encoding in the THz range. The calculated metrics for the prototype communication channel based on the proposed method are competitive with existing short-range THz CW channels.
In recent years there has been an increasing number of online manipulation campaigns targeted at news media. This report focuses on a subset of manipulation campaigns that rely on a strategy we call source hacking: a set of techniques for hiding the sources of problematic information in order to permit its circulation in mainstream media. Source hacking is therefore an indirect method for targeting journalists—planting false information in places that journalists are likely to encounter it or where it will be taken up by other intermediaries.
Across eight case studies, we identify the underlying techniques of source hacking to provide journalists, news organizations, platform companies, and others with a new vocabulary for describing these tactics, so that terms such as “trolling” and “trending” do not stand in for concerted efforts to pollute the information environment.
Do pandemics have lasting consequences for political behavior? We address this question by examining the consequences of the most deadly pandemic of the last millennium: the Black Death (1347-1351). Our claim is that pandemics can influence politics in the long run if they impose sufficient loss of life so as to augment the price of labor relative to other factors of production. When this occurs, labor repressive regimes (such as serfdom) become untenable, which ultimately leads to the development of proto-democratic institutions and associated political cultures that shape modalities of political engagement for generations. We test our theory by tracing out the local consequences of the Black Death in German-speaking Central Europe. We find that areas hit hardest by the pandemic were more likely to: (1) adopt inclusive political institutions and equitable land ownership patterns; (2)exhibit electoral behavior indicating independence from landed elite influence during the transition to mass politics.
Eveningness (a diurnal preference for evening time) is associated with a number of negative health outcomes and risk and prevalence for psychiatric disorder. Our understanding of the anatomical substrates of diurnal preference, however, is limited. The current study used Voxel-Based Morphometry to compare grey matter volume in a large sample (N = 3730) of healthy adults determined by questionnaire to be either definite morning-type or definite evening-type. Eveningness was associated with increased grey matter volume in precuneus, brain regions implicated in risk and reward processing (bilateral nucleus accumbens, caudate, putamen and thalamus) and orbitofrontal cortex. These results indicate an anatomical-basis for diurnal preference which may underlie reported differences in behaviour and brain function observed in these individuals.
See past discussions:
This article provides an overview of intimate threats: a class of privacy threats that can arise within our families, romantic partnerships, close friendships, and caregiving relationships. Many common assumptions about privacy are upended in the context of these relationships, and many otherwise effective protective measures fail when applied to intimate threats. Those closest to us know the answers to our secret questions, have access to our devices, and can exercise coercive power over us. We survey a range of intimate relationships and describe their common features. Based on these features, we explore implications for both technical privacy design and policy, and offer design recommendations for ameliorating intimate privacy risks.