@article{42489,
  author       = {{Fuchs, Christian}},
  journal      = {{Journal of Digital Social Research}},
  number       = {{1}},
  pages        = {{10--16}},
  title        = {{{What is Critical Digital Social Research? Five Reflections on the Study of Digital Society}}},
  doi          = {{https://doi.org/https://doi.org/10.33621/jdsr.v1i1.7}},
  volume       = {{1}},
  year         = {{2019}},
}

@misc{42487,
  author       = {{Fuchs, Christian}},
  booktitle    = {{The Conversation}},
  title        = {{{We Need a Full Public Service Internet – State-Owned Infrastructure is Just the Start}}},
  year         = {{2019}},
}

@misc{42490,
  author       = {{Fuchs, Christian}},
  booktitle    = {{TruthOut}},
  title        = {{{Boris Johnson Takes His Brexit Demagoguery to the Social Media Sphere}}},
  year         = {{2019}},
}

@article{25907,
  abstract     = {{<jats:p>The combined benefits of moisture-stable phosphonic acids and mesoporous silica materials (SBA-15 and MCM-41) as large-surface-area solid supports offer new opportunities for several applications, such as catalysis or drug delivery. We present a comprehensive study of a straightforward synthesis method via direct immobilization of several phosphonic acids and phosphoric acid esters on various mesoporous silicas in a Dean–Stark apparatus with toluene as the solvent. Due to the utilization of azeotropic distillation, there was no need to dry phosphonic acids, phosphoric acid esters, solvents, or silicas prior to synthesis. In addition to modeling phosphonic acids, immobilization of the important biomolecule adenosine monophosphate (AMP) on the porous supports was also investigated. Due to the high surface area of the mesoporous silicas, a possible catalytic application based on immobilization of an organocatalyst for an asymmetric aldol reaction is discussed.</jats:p>}},
  author       = {{Weinberger, Christian and Heckel, Tatjana and Schnippering, Patrick and Schmitz, Markus and Guo, Anpeng and Keil, Waldemar and Marsmann, Heinrich C. and Schmidt, Claudia and Tiemann, Michael and Wilhelm, René}},
  issn         = {{2079-4991}},
  journal      = {{Nanomaterials}},
  title        = {{{Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction}}},
  doi          = {{10.3390/nano9020249}},
  year         = {{2019}},
}

@article{28148,
  abstract     = {{<jats:p> The potential for biases being built into algorithms has been known for some time (e.g., Friedman and Nissenbaum, 1996), yet literature has only recently demonstrated the ways algorithmic profiling can result in social sorting and harm marginalised groups (e.g., Browne, 2015; Eubanks, 2018; Noble, 2018). We contend that with increased algorithmic complexity, biases will become more sophisticated and difficult to identify, control for, or contest. Our argument has four steps: first, we show how harnessing algorithms means that data gathered at a particular place and time relating to specific persons, can be used to build group models applied in different contexts to different persons. Thus, privacy and data protection rights, with their focus on individuals (Coll, 2014; Parsons, 2015), do not protect from the discriminatory potential of algorithmic profiling. Second, we explore the idea that anti-discrimination regulation may be more promising, but acknowledge limitations. Third, we argue that in order to harness anti-discrimination regulation, it needs to confront emergent forms of discrimination or risk creating new invisibilities, including invisibility from existing safeguards. Finally, we outline suggestions to address emergent forms of discrimination and exclusionary invisibilities via intersectional and post-colonial analysis. </jats:p>}},
  author       = {{Mann, Monique and Matzner, Tobias}},
  issn         = {{2053-9517}},
  journal      = {{Big Data & Society}},
  number       = {{2}},
  title        = {{{Challenging algorithmic profiling: The limits of data protection and anti-discrimination in responding to emergent discrimination}}},
  doi          = {{https://doi.org/10.1177/2053951719895805}},
  volume       = {{6}},
  year         = {{2019}},
}

@article{25905,
  abstract     = {{A nanocomposite material based on copper(II) oxide (CuO) and its utilization as a highly selective and stable gas-responsive electrical switch for hydrogen sulphide (H2S) detection is presented. The material can be applied as a sensitive layer for H2S monitoring, e.g., in biogas gas plants. CuO nanoparticles are embedded in a rigid, nanoporous silica (SiO2) matrix to form an electrical percolating network of low conducting CuO and, upon exposure to H2S, highly conducting copper(II) sulphide (CuS) particles. By steric hindrance due to the silica pore walls, the structure of the network is maintained even though the reversible reaction of CuO to CuS is accompanied by significant volume expansion. The conducting state of the percolating network can be controlled by a variety of parameters, such as temperature, electrode layout, and network topology of the porous silica matrix. The latter means that this new type of sensing material has a structure-encoded detection limit for H2S, which offers new application opportunities. The fabrication process of the mesoporous CuO@SiO2 composite as well as the sensor design and characteristics are described in detail. In addition, theoretical modeling of the percolation effect by Monte-Carlo simulations yields deeper insight into the underlying percolation mechanism and the observed response characteristics.}},
  author       = {{Paul, Andrej and Schwind, Bertram and Weinberger, Christian and Tiemann, Michael and Wagner, Thorsten}},
  issn         = {{1616-301X}},
  journal      = {{Advanced Functional Materials}},
  title        = {{{Gas Responsive Nanoswitch: Copper Oxide Composite for Highly Selective H2S Detection}}},
  doi          = {{10.1002/adfm.201904505}},
  year         = {{2019}},
}

@article{35164,
  author       = {{Raczkowski, Felix and Shnayien, Mary}},
  journal      = {{Tekniikan Waiheita}},
  number       = {{3}},
  pages        = {{57–67}},
  title        = {{{History and Aesthetics of Progress Indicators [Edistymispalkkien historia ja estetiikka]}}},
  doi          = {{10.33355/tw.86775}},
  volume       = {{37}},
  year         = {{2019}},
}

@article{10014,
  abstract     = {{The cubic, tetragonal, and orthorhombic phase of potassium niobate (KNbO3) are studied based on density-functional theory. Starting from the relaxed atomic geometries, we analyze the influence of self-energy corrections on the electronic band structure within the GW approximation. We find that quasiparticle shifts widen the direct (indirect) band gap by 1.21 (1.44), 1.58 (1.55), and 1.67 (1.64) eV for the cubic, tetragonal, and orthorhombic phase, respectively. By solving the Bethe-Salpeter equation, we obtain the linear dielectric function with excitonic and local-field effects, which turn out to be essential for good agreement with experimental data. From our results, we extract an exciton binding energy of 0.6, 0.5, and 0.5 eV for the cubic, tetragonal, and orthorhombic phase, respectively. Furthermore, we investigate the nonlinear second-harmonic generation (SHG) both theoretically and experimentally. The frequency-dependent second-order polarization tensor of orthorhombic KNbO3 is measured for incoming photon energies between 1.2 and 1.6 eV. In addition, calculations within the independent-(quasi)particle approximation are performed for the tetragonal and orthorhombic phase. The novel experimental data are in excellent agreement with the quasiparticle calculations and resolve persistent discrepancies between earlier experimental measurements and ab initio results reported in the literature.}},
  author       = {{Schmidt, Falko and Riefer, Arthur and Schmidt, Wolf Gero and Schindlmayr, Arno and Imlau, Mirco and Dobener, Florian and Mengel, Nils and Chatterjee, Sangam and Sanna, Simone}},
  issn         = {{2475-9953}},
  journal      = {{Physical Review Materials}},
  number       = {{5}},
  publisher    = {{American Physical Society}},
  title        = {{{Quasiparticle and excitonic effects in the optical response of KNbO3}}},
  doi          = {{10.1103/PhysRevMaterials.3.054401}},
  volume       = {{3}},
  year         = {{2019}},
}

@article{13365,
  abstract     = {{The KTiOPO4 (KTP) band structure and dielectric function are calculated on various levels of theory starting from density-functional calculations. Within the independent-particle approximation an electronic transport gap of 2.97 eV is obtained that widens to about 5.23 eV when quasiparticle effects are included using the GW approximation. The optical response is shown to be strongly anisotropic due to (i) the slight asymmetry of the TiO6 octahedra in the (001) plane and (ii) their anisotropic distribution along the [001] and [100] directions. In addition, excitonic effects are very important: The solution of the Bethe–Salpeter equation indicates exciton binding energies of the order of 1.5 eV. Calculations that include both quasiparticle and excitonic effects are in good agreement with the measured reflectivity.}},
  author       = {{Neufeld, Sergej and Bocchini, Adriana and Gerstmann, Uwe and Schindlmayr, Arno and Schmidt, Wolf Gero}},
  issn         = {{2515-7639}},
  journal      = {{Journal of Physics: Materials}},
  pages        = {{045003}},
  publisher    = {{IOP Publishing}},
  title        = {{{Potassium titanyl phosphate (KTP) quasiparticle energies and optical response}}},
  doi          = {{10.1088/2515-7639/ab29ba}},
  volume       = {{2}},
  year         = {{2019}},
}

@inbook{42367,
  author       = {{Fuchs, Christian}},
  booktitle    = {{Digital Objects, Digital Subjects: Interdisciplinary Perspectives on Capitalism, Labour and Politics in the Age of Big Data}},
  editor       = {{Chandler, David and Fuchs, Christian}},
  publisher    = {{University of Westminster Press}},
  title        = {{{Beyond Big Data Capitalism, Towards Dialectical Digital Modernity: Reflections on David Chandler’s Chapter}}},
  doi          = {{https://doi.org/10.16997/book29.c}},
  volume       = {{43-51}},
  year         = {{2019}},
}

@inbook{41799,
  author       = {{Fuchs, Christian and Chandler, David}},
  booktitle    = {{Digital Objects, Digital Subjects: Interdisciplinary Perspectives on Capitalism, Labour and Politics in the Age of Big Data}},
  editor       = {{Chandler, David and Fuchs, Christian}},
  isbn         = {{978-1-912656-20-2}},
  pages        = {{1--20}},
  publisher    = {{University of Westminster Press}},
  title        = {{{Introduction: Big Data Capitalism – Politics, Activism, and Theory}}},
  doi          = {{https://doi.org/10.16997/book29.a}},
  year         = {{2019}},
}

@inbook{42368,
  author       = {{Fuchs, Christian}},
  booktitle    = {{Digital Objects, Digital Subjects: Interdisciplinary Perspectives on Capitalism, Labour and Politics in the Age of Big Data}},
  editor       = {{Chandler, David and Fuchs, Christian}},
  publisher    = {{University of Westminster Press}},
  title        = {{{Karl Marx in the Age of Big Data Capitalism}}},
  doi          = {{https://doi.org/10.16997/book29.d}},
  volume       = {{53-71}},
  year         = {{2019}},
}

@techreport{42495,
  author       = {{Fuchs, Christian and Michalis, Maria}},
  title        = {{{Evidence submitted to the House of Commons-Environment, Food and Rural Affairs Committee’s Inquiry on Rural Broadband and Digital Only Services, published on 26 June 2019}}},
  year         = {{2019}},
}

@techreport{42494,
  author       = {{Fuchs, Christian and Michalis, Maria}},
  title        = {{{Evidence submitted to the House of Commons-Environment, Food and Rural Affairs Committee’s Inquiry on Rural Broadband and Digital Only Services, published on 26 June 2019}}},
  year         = {{2019}},
}

@misc{42492,
  author       = {{Fuchs, Christian}},
  booktitle    = {{The Conversation}},
  title        = {{{Slow Media: How to Renew Debate in the Age of Digital Authoritarianism}}},
  year         = {{2019}},
}

@misc{42491,
  author       = {{Fuchs, Christian}},
  booktitle    = {{Los Angeles Review of Books}},
  title        = {{{Henry A. Giroux and the Culture of Neoliberal Fascism}}},
  year         = {{2019}},
}

@article{28164,
  abstract     = {{<jats:p> The article analyzes the relation of humans and technology concerning so called ‘intelligent’ or ‘autonomous’ algorithms that are applied in everyday contexts but are far removed from any form of substantial artificial intelligence. In particular, the use of algorithms in surveillance and in architecture is discussed. These examples are structured by a particular combination of continuity and difference between humans and technology. The article provides a detailed analysis of boundary practices that establish continuity and oppositions between humans and information technology, referring to their exemplary depiction in movies. Both strands of boundary practices have the potential to challenge as well as sustain the position of the human as liberal, autonomous subject. Finally, it is shown how the particular combination of continuity and difference that structures the use of algorithms maintains the power of liberal, autonomous subject positions, while the shift of decisions to the algorithms seems to decenter the human. </jats:p>}},
  author       = {{Matzner, Tobias}},
  issn         = {{0263-2764}},
  journal      = {{Theory, Culture & Society}},
  number       = {{2}},
  pages        = {{123--144}},
  title        = {{{The Human is Dead, Long Live the Algorithm!. Human-Algorithmic Ensembles and Liberal Subjectivity}}},
  doi          = {{https://doi.org/10.1177/0263276418818877}},
  volume       = {{36}},
  year         = {{2019}},
}

@article{28170,
  author       = {{Matzner, Tobias and Ochs, Carsten}},
  issn         = {{2197-6775}},
  journal      = {{Internet Policy Review}},
  number       = {{4}},
  title        = {{{Privacy}}},
  doi          = {{https://doi.org/10.14763/2019.4.1427}},
  volume       = {{8}},
  year         = {{2019}},
}

@inbook{28167,
  author       = {{Matzner, Tobias}},
  booktitle    = {{Privatsphäre 4.0. Eine Neuverortung des Privaten im Zeitalter der Digitalisierung}},
  editor       = {{Berendt, Hauke and Loh, Wulf and Matzner, Tobias and Misselhorn, Catrin}},
  publisher    = {{Metzler}},
  title        = {{{Mediale und soziale Bedingtheit der Subjekte des Privaten – ein Versuch mit Hannah Arendt}}},
  doi          = {{https://doi.org/10.1007/978-3-476-04860-8_4}},
  year         = {{2019}},
}

@unpublished{22884,
  abstract     = {{Measurement-induced nonclassical effects in a two-mode interferometer are
investigated theoretically using numerical simulations and analytical results.
We demonstrate that for certain parameters measurements within the
interferometer lead to the occurrence of two-mode squeezing. The results
strongly depend on the detection probability, the phase inside the
interferometer, and the choice of the input states. The appropriate parameters
for maximized squeezing are obtained. We analyze the influence of losses and
confirm that the predicted effects are within reach of current experimental
techniques.}},
  author       = {{Riabinin, Matvei and Sharapova, Polina and Bartley, Tim and Meier, Torsten}},
  booktitle    = {{arXiv:1912.09097}},
  title        = {{{Generating two-mode squeezing with multimode measurement-induced nonlinearity}}},
  year         = {{2019}},
}