Novel Scientific Evidence of Intoxication: Acoustic Analysis of Voice Recordings from the Exxon Valdez

Part of this article reports original research conducted under the direction of the second and third authors. The initial re search was supported by a contract to Indiana University from General Motors Research Laboratories. The specific analyses of voice recordings of Captain Joseph Hazelwood were conducted by them at the re quest of the National Transportation Safety Board, and are based on tapes and data supplied by the NTSB. The second author may be called as a witness in some of the lawsuits pending against the Exxon Corporation. The opinions expressed in this article concerning whether this evidence meets the legal standards of reliability and admissibility are those of the first author, who is not affiliated with the Speech Research Laboratory and has not participated in either the initial research nor the analysis of the Exxon Valdez tapes

Demonstration and characterisation of a non-inverting all-optical read/write regenerative memory

An all-optical regenerative memory device using a single loop mirror and a semiconductor optical amplifier is experimentally demonstrated. This configuration has potential for a low power all-optical stable memory device with non-inverting characteristics where packets are stored by continuously injecting the regenerated data back into the loop

Novel Scientific Evidence of Intoxication: Acoustic Analysis of Voice Recordings from the Exxon Valdez

Part of this article reports original research conducted under the direction of the second and third authors. The initial re search was supported by a contract to Indiana University from General Motors Research Laboratories. The specific analyses of voice recordings of Captain Joseph Hazelwood were conducted by them at the re quest of the National Transportation Safety Board, and are based on tapes and data supplied by the NTSB. The second author may be called as a witness in some of the lawsuits pending against the Exxon Corporation. The opinions expressed in this article concerning whether this evidence meets the legal standards of reliability and admissibility are those of the first author, who is not affiliated with the Speech Research Laboratory and has not participated in either the initial research nor the analysis of the Exxon Valdez tapes

Writing the unreadable untext: a collaborative autoethnography of #rhizo14

No abstract available

POWERLIB: SAS/IML Software for Computing Power in Multivariate Linear Models

The POWERLIB SAS/IML software provides convenient power calculations for a wide range of multivariate linear models with Gaussian errors. The software includes the Box, Geisser-Greenhouse, Huynh-Feldt, and uncorrected tests in the "univariate" approach to repeated measures (UNIREP), the Hotelling Lawley Trace, Pillai-Bartlett Trace, and Wilks Lambda tests in "multivariate" approach (MULTIREP), as well as a limited but useful range of mixed models. The familiar univariate linear model with Gaussian errors is an important special case. For estimated covariance, the software provides confidence limits for the resulting estimated power. All power and confidence limits values can be output to a SAS dataset, which can be used to easily produce plots and tables for manuscripts.

Online Learning and Mentors: Addressing the Shortage of Rural Special Educators Through Technology and Collaboration

This article describes a promising model in comprehensive special education personnel preparation to support the recruitment and retention of special education teachers in rural areas. The approach draws on several bodies of research to include best practices for teacher education, online service delivery, collaboration among key stakeholders, and the development of strong mentoring and induction programs. The implementation plan, based on evidence-based practice in special education and online learning, is presented. A key element of this plan is developing and maintaining strong relationships among rural districts, the state department of education, and higher education

α\alpha-Scale Decoupling of the Mechanical Relaxation and Diverging Shear Wave Propagation Lengthscale in Triphenylphosphite

We have performed depolarized Impulsive Stimulated Scattering experiments to observe shear acoustic phonons in supercooled triphenylphosphite (TPP) from $\sim$10 - 500 MHz. These measurements, in tandem with previously performed longitudinal and shear measurements, permit further analyses of the relaxation dynamics of TPP within the framework of the mode coupling theory (MCT). Our results provide evidence of $\alpha$ coupling between the shear and longitudinal degrees of freedom up to a decoupling temperature $T_c$ = 231 K. A lower bound length scale of shear wave propagation in liquids verified the exponent predicted by theory in the vicinity of the decoupling temperature

Structure of Frequency-Interacting RNA Helicase from \u3ci\u3eNeurospora crassa\u3c/i\u3e Reveals High Flexibility in a Domain Critical for Circadian Rhythm and RNA Surveillance

The FRH (frequency-interacting RNA helicase) protein is the Neurospora crassa homolog of yeast Mtr4, an essential RNA helicase that plays a central role in RNA metabolism as an activator of the nuclear RNA exosome. FRH is also a required component of the circadian clock, mediating protein interactions that result in the rhythmic repression of gene expression. Here we show that FRH unwinds RNA substrates in vitro with a kinetic profile similar to Mtr4, indicating that while FRH has acquired additional functionality, its core helicase function remains intact. In contrast with the earlier FRH structures, a new crystal form of FRH results in an ATP binding site that is undisturbed by crystal contacts and adopts a conformation consistent with nucleotide binding and hydrolysis. Strikingly, this new FRH structure adopts an arch domain conformation that is dramatically altered from previous structures. Comparison of the existing FRH structures reveals conserved hinge points that appear to facilitate arch motion. Regions in the arch have been previously shown to mediate a variety of protein-protein interactions critical for RNA surveillance and circadian clock functions. The conformational changes highlighted in the FRH structures provide a platform for investigating the relationship between arch dynamics and Mtr4/FRH function