Propagation of noise from electronic transformers

Issued as Oral report, and Progress report, Project no. E-25-656 (continued by Project no. E-25-672

Wing shielding in aircraft noise propagation

Issued as Semi-annual progress report, and Final technical reports no. [1-2], Project no. E-25-66

The genetic architecture of the human cerebral cortex

The cerebral cortex underlies our complex cognitive capabilities, yet little is known about the specific genetic loci that influence human cortical structure. To identify genetic variants that affect cortical structure, we conducted a genome-wide association meta-analysis of brain magnetic resonance imaging data from 51,665 individuals. We analyzed the surface area and average thickness of the whole cortex and 34 regions with known functional specializations. We identified 199 significant loci and found significant enrichment for loci influencing total surface area within regulatory elements that are active during prenatal cortical development, supporting the radial unit hypothesis. Loci that affect regional surface area cluster near genes in Wnt signaling pathways, which influence progenitor expansion and areal identity. Variation in cortical structure is genetically correlated with cognitive function, Parkinson's disease, insomnia, depression, neuroticism, and attention deficit hyperactivity disorder

Propagation of aircraft noise

Issued as Semi-annual status report no.1-2, Final quarterly management report, Final cumulative cost expenditure report, and Final technical report no. [1]-2, Project no. E-25-64

Design of laser-induced-heating configurations for generation and control of underwater sound beams

Issued as Report, and Technical report, Project no. E-25-656Technical report has title: Design of laser-induced-heating configurations for generation and control of underwater sound beam

Computational techniques for the study of infrasound propagation in the atmosphere

Issued as Quarterly status report no. 1-8, Scientific report no. 1-2, and Final report, Project no. E-25-638Final report has title: Computational techniques for the study of infrasound propagation in the atmospher

Electron-lattice interaction and the generalized Born-Oppenheimer approximation

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1962.Vita.Includes bibliographical references (leaves 276-278).by Allan Dale Pierce.Ph.D

Applications of acoustics in the measurement of coal slab thickness

Issued as Monthly progress report nos. 1-7, and Final report, Project no. E-25-60

Propagation of elastic waves on thin-walled circular cylinders

Issued as Final report, Project no. E-25-643Final report has title: Propagation of elastic waves on thin-walled circular cylindersFinal report has author: Allan D. Pierc

The role of citizen science in landscape and seascape approaches to integrating conservation and development

Initiatives to manage landscapes for both biodiversity protection and sustainable development commonly employ participatory methods to exploit the knowledge of citizens. We review five examples of citizen groups engaging with landscape scale conservation initiatives to contribute their knowledge, collect data for monitoring programs, study systems to detect patterns, and test hypotheses on aspects of landscape dynamics. Three are from landscape interventions that deliberately target biodiversity conservation and aim to have sustainable development as a collateral outcome. The other two are driven primarily by concerns for agricultural sustainability with biodiversity conservation as a collateral outcome. All five include programs in which, management agencies support data collection by citizen groups to monitor landscape changes. Situations where citizen groups self-organise to collect data and interpret data to aid in landscape scale decision making are less common and are restricted to landscapes where the inhabitants have a high level of scientific literacy. Given the complexity of landscape processes and the multiple decision makers who influence landscape outcomes we argue that citizen science broadly defined should be an essential element of landscape scale initiatives. Conservation managers should create space for citizen engagement in science and should empower citizen groups to experiment, learn, and adapt their decision-making to improve landscape scale outcomes