Gerhard Richter: Recovery and Memory in Postwar Germany

Gerhard Richter explored themes of memory and national identity in a society with a controversial past and a difficult recovery. He broke the silence that permeated the country and created a dialogue about remembering, memorializing, and politics. After World War II, Germany had difficulty facing the atrocities of the war and ignored the flaws in the country’s recovery. Richter witnessed first hand the social and political struggles of the country as a citizen of Nazi Germany and the German Democratic Republic, societies that required strict conformity to their ideologies. Upon his escape to West Germany, where he was exposed to Pop Art, Abstract Expressionism, and the expected rejection of Socialism, Richter forged a painting career devoid of stylistic or content conformity. Richter’s family paintings and his October 18, 1977 series from 1988 directly confront Germany’s struggle to recover from the Second World War. The family paintings address the ways in which World War II affected his own family’s dynamic and identity. The October 18, 1977 series comments on the events involving the Baader-Meinhof group inside Stammheim Prison, and in doing so highlights social unrest and political controversy in Germany in the 1970’s. Richter’s refusal to stay silent about these issues allowed him to bring to light the reality of Germany’s condition. Although these pieces were painted in a photorealistic style, the literal blurring of these images makes a statement about clarity, perception, and reality while toying with the norms associated with the mediums of painting and photography. Richter addresses unspeakable topics with an unconventional painting style to create a dynamic juxtaposition of ambiguity and directness

FUNCTIONAL ANALYSES: A COMPARISON OF ISOLATED AND SYNTHESIZED CONTINGENCIES

The purpose of the study was to compare traditional functional analysis procedures (isolated contingencies) to functional analysis procedures which are modified to include nuanced environmental variables (synthesized contingencies) for children in an outpatient setting in order to determine sensitivity to the isolated or synthesized contingencies. A multi-element design embedded into a multi-treatment design was used to evaluate differentiated rates of challenging behavior across the two analyses for three children exhibiting challenging behaviors. The results supported the utility of the traditional functional analysis (FA) procedures when compared to that of the interview informed synthesized contingency analysis (IISCA) for one of three participants

We\u27ll See You Tomorrow

On July 14th, 2015, Hannah climbed to the top of Half Dome, a stunning rock formation that rises thousands of feet above the valley floor at Yosemite National Park. She had talked about wanting to climb to the top of this breathtaking cliff for years and frequently mentioned that she had to tackle this feat “before she died.” I was amazed and proud to see photos of her impressive accomplishment, and wondered what she might achieve next. On July 21st, 2015, Hannah committed suicide. [excerpt

Chromatin accessibility underlies synthetic lethality of SWI/SNF subunits in ARID1A-mutant cancers.

ARID1A, a subunit of the SWI/SNF chromatin remodeling complex, is frequently mutated in cancer. Deficiency in its homolog ARID1B is synthetically lethal with ARID1A mutation. However, the functional relationship between these homologs has not been explored. Here, we use ATAC-seq, genome-wide histone modification mapping, and expression analysis to examine colorectal cancer cells lacking one or both ARID proteins. We find that ARID1A has a dominant role in maintaining chromatin accessibility at enhancers, while the contribution of ARID1B is evident only in the context of ARID1A mutation. Changes in accessibility are predictive of changes in expression and correlate with loss of H3K4me and H3K27ac marks, nucleosome spacing, and transcription factor binding, particularly at growth pathway genes including MET. We find that ARID1B knockdown in ARID1A mutant ovarian cancer cells causes similar loss of enhancer architecture, suggesting that this is a conserved function underlying the synthetic lethality between ARID1A and ARID1B

High-Carbon Steel in Additive Manufacturing

High-carbon steel can be processed through numerous methods. The method that will be focused on primarily is processing high-carbon steel through means of additive manufacturing. Additive manufacturing is the industrial production name for 3D printing, a computer-controlled process that creates three-dimensional objects by depositing materials, usually in layers. AM methods like wire laser additive manufacturing (WLAM) and electron beam melting (EBM) are all common methods for fabricating high carbon steel. The perks associated with these methods are that they improve some drawbacks of the natural properties of high-carbon steel. This paper discusses the uses of these additive manufacturing methods along with other methods used in the processing of high-carbon steel, how properties (i.e., microstructure, grain size, etc.) are affected, and the capabilities of the material

Prototipe Sistem Informasi Ketinggian Air Melalui Media Sosial Twitter Sebagai Sistem Peringatan Dini Bahaya Banjir

Sungai merupakan salah satu kebutuhan hidup bagi sebagian masyarakat yang hidup di daerah bantaran sungai, tetapi ketika musim penghujan air sungai dapat meluap dan berpotensi banjir di beberapa kawasan sehingga dapat menyebabkan kerugian harta benda dan bahkan korban jiwa dikarenakan terlambatnya informasi air sungai yang meluap. Twitter merupakan jejaring sosial yang memungkinkan penggunanya untuk mengirim dan membaca pesan berbasis teks secara cepat update dan realtime hingga 140 karakter. Prototipe sistem terdiri dari sensor ultrasonik HC-SR04 untuk membaca ketinggian air, Arduino Uno R3, dan Ethernet Shield compatible Arduino untuk menghubungkan ke jaringan komputer agar dapat di posting langsung ke twitter secara otomatis. Hasil pengujian menunjukkan bahwa sistem ini mampu memberikan informasi ketinggian air yang dikatagorikan kondisi aman, waspada, siaga, dan bahaya secara realtime dan broadcast melalui media sosial Twitter secara berkala

Discovering Active Subspaces for High-Dimensional Computer Models

Dimension reduction techniques have long been an important topic in statistics, and active subspaces (AS) have received much attention this past decade in the computer experiments literature. The most common approach towards estimating the AS is to use Monte Carlo with numerical gradient evaluation. While sensible in some settings, this approach has obvious drawbacks. Recent research has demonstrated that active subspace calculations can be obtained in closed form, conditional on a Gaussian process (GP) surrogate, which can be limiting in high-dimensional settings for computational reasons. In this paper, we produce the relevant calculations for a more general case when the model of interest is a linear combination of tensor products. These general equations can be applied to the GP, recovering previous results as a special case, or applied to the models constructed by other regression techniques including multivariate adaptive regression splines (MARS). Using a MARS surrogate has many advantages including improved scaling, better estimation of active subspaces in high dimensions and the ability to handle a large number of prior distributions in closed form. In one real-world example, we obtain the active subspace of a radiation-transport code with 240 inputs and 9,372 model runs in under half an hour

Response time fluctuations in the sustained attention to response task predict performance accuracy and meta-awareness of attentional states

Previous research suggests that response time (RT) patterns in the Sustained Attention to Response Task(SART) differentially predict different features of mind wandering but it is unknown how they relate to meta-awareness of attentional states. We applied principal component analysis to blocks of non-target (go) trials prior to target(no-go) trials and attentional state and meta-awareness probes in the SART and identified three distinct patterns that replicated those observed in previous research. A stable response rate was associated with superior target performance, whereas RT acceleration prior to targets was associated with poorer target performance. Self-reported attentional state was not significantly predicted by any of the pattern components. By contrast, meta-awareness was independently associated with two distinct RT fluctuation patterns with evidence that each pattern was specifically related to either meta-awareness of off-task or on-task states. These results suggest that mind wandering and meta-awareness of attentional states have distinct and overlapping imprints on RT patterns in the SART. We conclude by highlighting implications of these results for introspective methods and the measurement of mind wandering