Resonant microwave dichroic surface

Dichroic surface has high stopband filter characteristics with a low stopband-to-passband frequency ratio. It utilizes two stagger-tuned, resonant artificial dielectric surfaces and is virtually polarization insensitive

Bat Quickness and Bat Velocity for Left- and Right-Handed Softball Swings

Please view abstract in the attached PDF fil

Multiadaptive Galerkin Methods for ODEs III: A Priori Error Estimates

The multiadaptive continuous/discontinuous Galerkin methods mcG(q) and mdG(q) for the numerical solution of initial value problems for ordinary differential equations are based on piecewise polynomial approximation of degree q on partitions in time with time steps which may vary for different components of the computed solution. In this paper, we prove general order a priori error estimates for the mcG(q) and mdG(q) methods. To prove the error estimates, we represent the error in terms of a discrete dual solution and the residual of an interpolant of the exact solution. The estimates then follow from interpolation estimates, together with stability estimates for the discrete dual solution

Atoms and the Law

Early in 1951 a group of interested members of the faculty of The University of Michigan Law School conceived the idea of a research project, the purpose of which would be to investigate the principal unique legal problems being created and likely to be created in the future by peaceful uses of atomic energy. The group planned the preparation and publication of a series of manuscripts which might ultimately emerge as one or more printed volumes dealing with the legal problems affecting this new form of energy. Many phases of the subject were scrutinized, including the rule-making and licensing powers of the Atomic Energy Commission, the censoring of scientific information, liability for radiation injuries to persons and property, patent rights, state regulatory activities, imd other areas of possible interest. In July 1951 the Michigan Memorial-Phoenix Project, the University\u27s major program of research in all phases of peaceful uses of the atom, made a substantial grant in support of the proposed study of legal problems. The law faculty group, consisting at the outset of Professors Samuel D. Estep, William ]. Pierce, and the undersigned, organized and embarked upon the program. Later Professors Eric Stein and William W. Bishop were added. A small research staff was recruited and the studies were commenced, beginning with an intensive examination of the legislative history of the Atomic Energy Act of 1946. In the summer of 1952, an Institute on Industrial and Legal Problems of Atomic Energy was organized and held in the Law Quadrangle in Ann Arbor. This proved to be one of the earliest of the many conferences held in this country resulting from the development of atomic enterprise, and it served to give very great stimulus to the research work being carried on within the staff of the Law School. The proceedings were published by the School and were widely distributed. In 1956 a second summer conference was held, this time a workshop, with a prepared agenda and working papers distributed in advance to the invited participants, who included not only lawyers but also engineers, A. E. C. staff members, scientists, health officials, and economists-a truly inter-disciplinary undertaking. The objective was to elicit concentrated thinking and interchange of ideas between knowledgeable people concerning atomic legal problems, and to precipitate these ideas in concrete form for the guidance of those responsible for current legal developments in the field. Again, proceedings were published and were widely distributed. Throughout the years manuscripts on various phases of the subject have been prepared by the research staff or by the members of the faculty engaged in the project. Little by little the materials, which now emerge as this volume entitled Atoms and the Law, took shape in manuscript ·form. Principal interest finally centered on tort liability for radiation injuries, workmen\u27s compensation for such injuries, federal statutory and administrative provisions regulating atomic activities, state regulation of atomic energy, and finally, in the later years, the international aspects of the subject. These became principal headings in the volume which is now being published. As the project unfolded, those of us who were participating in it became increasingly impressed with the feeling that here was something unique in legal research, for we were engaging in a task that involved not only frontiers of the law but also one which was ever so closely interwoven with the science and technology of tomorrow. In carrying out the project, it became necessary for us to proceed as far as possible to master a new scientific field, one with a new vocabulary and a radically different set of concepts. This certainly enhanced interest in the task, not to mention increasing the difficulty of carrying it forward. In addition, it afforded us an even more fascinating prospect, namely, the possibility of creation of a center for legal studies related to the new technological world, with its great variety of new facets-automation, water resources problems, aviation, etc., thus to make our contribution in providing the legal framework to facilitate the adjustment of scientific advances to the social order of which we are a part.https://repository.law.umich.edu/books/1025/thumbnail.jp

Marine Biodiversity and Ecosystem Health of Ilhas Selvagens, Portugal

In September 2015, National Geographic's Pristine Seas project, in conjunction with the Instituto Universitário-Portugal, The Waitt Institute, the University of Western Australia, and partners conducted a comprehensive assessment of the rarely surveyed Ilhas Selvagens to explore the marine environment, especially the poorly understood deep sea and open ocean areas, and quantify the biodiversity of the nearshore marine environment

Ecological studies of the surface microlayer of small ponds at the UWM Field Station

The seasonal variation and enrichment of nutrients, pigments, bacteria, fungi and algae in the surface microlayer and subsurface waters were investigated in three ponds at the University of Wisconsin-Milwaukee Field Station, Saukville, Ozaukee County, Wisconsin. Samples were collected intermittently from June, 1978 through October, 1981. Microlayer samples were collected using a glass plate and a screen sampler. All ponds showed dramatic seasonal variations in nutrients, microorganisms and algae in both surface and subsurface waters. The data indicate that physical factors such as adsubble processes, antirain and atmospheric deposition, along with biological factors such as heterotrophic mineralization and autotrophic uptake, play significant roles in causing the enrichment or lack of enrichment of materials within the microlayer. Furthermore, this study suggests that surface microlayers, particularly in shallow environments where algal species are adapted to high light conditions. can be sites of high biological activity

Dynamics of an Acute Coral Disease Outbreak Associated with the Macroalgae \u3cem\u3eDictyota\u3c/em\u3e SPP. in Dry Tortugas National Park, Florida, USA

Reports of coral disease outbreaks have increased in recent decades, but often few details are known about these outbreaks, such as environmental triggers, associated biological variables, or even the precise temporal span of the outbreak. Here we document an acute outbreak of a rapid tissue loss disease on the highest live coral cover (15%–30%) reefs within Dry Tortugas National Park, Florida, USA. This disease exhibited similar signs to white plague disease with the notable exception that a white film often was observed on the recently denuded skeleton. The temporal span of the disease was short (\u3c2 mo). Partial mortality was recorded but there was no detectable impact to overall coral cover. A significant increase and then decrease in the cover of macroalgae, primarily of the genus Dictyota, occurred simultaneously with the increase and drop in disease lesion density (number of lesions per living tissue area), respectively. No other anomalous biological or physical factors (e.g., unusual temperature, turbidity, passage of storms) corresponded with the outbreak, although it is likely that some environmental anomaly that was undetectable with the methods employed favored both disease and Dictyota expansion. This is the first study to associate a rapid increase in a macroalgal population with a coral disease outbreak. We highlight the need for increased study of the initiation of such outbreaks in the caribbean

Cutaneous stimulation of the digits and lips evokes responses with different adaptation patterns in primary somatosensory cortex

Neuromagnetic evoked fields were recorded to compare the adaptation of the primary somatosensory cortex (SI) response to tactile stimuli delivered to the glabrous skin at the fingertips of the first three digits (condition 1) and between midline upper and lower lips (condition 2). The stimulation paradigm allowed to characterize the response adaptation in the presence of functional integration of tactile stimuli from adjacent skin areas in each condition. At each stimulation site, cutaneous stimuli (50 ms duration) were delivered in three runs, using trains of 6 pulses with regular stimulus onset asynchrony (SOA). The pulses were separated by SOAs of 500 ms, 250 ms or 125 ms in each run, respectively, while the inter-train interval was fixed (5 s) across runs. The evoked activity in SI (contralateral to the stimulated hand, and bilaterally for lips stimulation) was characterized from the best-fit dipoles of the response component peaking around 70 ms for the hand stimulation, and 8 ms earlier (on average) for the lips stimulation. The SOA-dependent long-term adaptation effects were assessed from the change in the amplitude of the responses to the first stimulus in each train. The short-term adaptation was characterized by the lifetime of an exponentially saturating model function fitted to the set of suppression ratios of the second relative to the first SI response in each train. Our results indicate: 1) the presence of a rate-dependent long-term adaptation effect induced only by the tactile stimulation of the digits; and 2) shorter recovery lifetimes for the digits compared with the lips stimulation

Physical Activity and Risk of Breast Cancer, Colon Cancer, Diabetes, Ischemic Heart Disease, and Ischemic Stroke Events: Systematic Review and Dose-Response Meta-Analysis for the Global Burden of Disease Study 2013

Objective: To quantify the dose-response associations between total physical activity and risk of breast cancer, colon cancer, diabetes, ischemic heart disease, and ischemic stroke events

Harvard Personal Genome Project: lessons from participatory public research

Background: Since its initiation in 2005, the Harvard Personal Genome Project has enrolled thousands of volunteers interested in publicly sharing their genome, health and trait data. Because these data are highly identifiable, we use an ‘open consent’ framework that purposefully excludes promises about privacy and requires participants to demonstrate comprehension prior to enrollment. Discussion Our model of non-anonymous, public genomes has led us to a highly participatory model of researcher-participant communication and interaction. The participants, who are highly committed volunteers, self-pursue and donate research-relevant datasets, and are actively engaged in conversations with both our staff and other Personal Genome Project participants. We have quantitatively assessed these communications and donations, and report our experiences with returning research-grade whole genome data to participants. We also observe some of the community growth and discussion that has occurred related to our project. Summary We find that public non-anonymous data is valuable and leads to a participatory research model, which we encourage others to consider. The implementation of this model is greatly facilitated by web-based tools and methods and participant education. Project results are long-term proactive participant involvement and the growth of a community that benefits both researchers and participants