Pianos in the Woods : Emily Dickinson\u27s Imaginative Vision

In this emphatically skeptical poem, Emily Dickinson squarely connects with one of the central issues of romantic and modern literature: the individual\u27s alienation from the world in which he lives. This ontological separation had its origins in modern thought in the philosophy of Descartes and Hobbes, and was invested with scientific certainty by the revelation of Newtonian physics. Materialism gave way to mechanism, and the universe was reduced to substance and motion; it was emptied of purpose and value, and was thus seen as separate from the vital world of private experience. Inheritors of this world-view, the Romantics turned to the unifying force of the imagination. Through the power of imaginative vision, they sought to heal the breach between subject and object, and find a meaningful connection between man and the universe

Pianos in the Woods : Emily Dickinson\u27s Imaginative Vision

In this emphatically skeptical poem, Emily Dickinson squarely connects with one of the central issues of romantic and modern literature: the individual\u27s alienation from the world in which he lives. This ontological separation had its origins in modern thought in the philosophy of Descartes and Hobbes, and was invested with scientific certainty by the revelation of Newtonian physics. Materialism gave way to mechanism, and the universe was reduced to substance and motion; it was emptied of purpose and value, and was thus seen as separate from the vital world of private experience. Inheritors of this world-view, the Romantics turned to the unifying force of the imagination. Through the power of imaginative vision, they sought to heal the breach between subject and object, and find a meaningful connection between man and the universe

How Knowledge Workers Think Generative AI Will (Not) Transform Their Industries

Generative AI is expected to have transformative effects in multiple knowledge industries. To better understand how knowledge workers expect generative AI may affect their industries in the future, we conducted participatory research workshops for seven different industries, with a total of 54 participants across three US cities. We describe participants' expectations of generative AI's impact, including a dominant narrative that cut across the groups' discourse: participants largely envision generative AI as a tool to perform menial work, under human review. Participants do not generally anticipate the disruptive changes to knowledge industries currently projected in common media and academic narratives. Participants do however envision generative AI may amplify four social forces currently shaping their industries: deskilling, dehumanization, disconnection, and disinformation. We describe these forces, and then we provide additional detail regarding attitudes in specific knowledge industries. We conclude with a discussion of implications and research challenges for the HCI community.Comment: 40 pages, 5 tables, 6 figure

Properties of Pt Schottky Type Contacts On High-Resistivity CdZnTe Detectors

In this paper we present studies of the I-V characteristics of CdZnTe detectors with Pt contacts fabricated from high-resistivity single crystals grown by the high-pressure Brigman process. We have analyzed the experimental I-V curves using a model that approximates the CZT detector as a system consisting of a reversed Schottky contact in series with the bulk resistance. Least square fits to the experimental data yield 0.78-0.79 eV for the Pt-CZT Schottky barrier height, and <20 V for the voltage required to deplete a 2 mm thick CZT detector. We demonstrate that at high bias the thermionic current over the Schottky barrier, the height of which is reduced due to an interfacial layer between the contact and CZT material, controls the leakage current of the detectors. In many cases the dark current is not determined by the resistivity of the bulk material, but rather the properties of the contacts; namely by the interfacial layer between the contact and CZT material.Comment: 12 pages, 11 figure

First test results from a high-resolution CdZnTe pixel detector with VLSI readout

We are developing a CdZnTe pixel detector with a custom low- noise analog VLSI readout for use in the High-Energy Focusing Telescope balloon experiment, as well as for future space astronomy applications. The goal of the program is to achieve good energy resolution (< 1 keV FWHM at 60 keV) and low threshold in a sensor with approximately 500 micrometers pixels. We have fabricated several prototype detector assemblies with 2 mm thick, 680 by 650 micrometers pitch CdZnTe pixel sensors indium bump bonded a VLSI readout chip developed at Caltech. Each readout circuit in the 8 X 8 prototype is matched to the detector pixel size, and contains a preamplifier, shaping amplifiers, and a peak stretcher/discriminator. In the first 8 X 8 prototype, we have demonstrated the low-noise preamplifier by routing the output signals off-chip for shaping and pulse-height analysis. Pulse height spectra obtained using a ^(241)Am source, collimated to illuminate a single pixel, show excellent energy resolution of 1.1 keV FWHM for the 60 keV line at room temperature. Line profiles are approximately Gaussian and dominated by electronic noise, however a small low energy tail is evident for the 60 keV line. We obtained slightly improved resolution of 0.9 keV FWHM at 60 keV by cooling the detector to 5 degree(s)C, near the expected balloon- flight operating temperature. Pulse height spectra obtained with the collimated source positioned between pixels show the effect of signal sharing for events occurring near the boundary. We are able to model the observed spectra using a Monte-Carlo simulation that includes the effects of photon interaction, charge transport and diffusion, pixel and collimator geometry, and electronic noise. By using the model to simulate the detector response to uncollimated radiation (including the effect of finite trigger threshold for reconstruction of the total energy of multi-pixel events), we find the energy resolution to be degraded by only 10% for full-face illumination, compared to the collimated case. The small value of the degradation is due directly to the low readout noise and amplifier threshold