Uncovering the Potential of Peabody\u27s Hidden North River: A Greenway for Social and Ecological Connectivity

Project Goal Demonstrating the opportunity to strengthen both urban and ecological qualities, this project has the goal to transform an old industrial corridor in downtown Peabody into a green corridor integrating stormwater management, habit restoration, recreational, and catalyst for urban development. The site’s location at the downstream end of existing creeks combined with its proximity to the Salem Sound makes this an extremely sensitive area to flooding events. This design proposal transforms this risk into an opportunity by restoring this former industrial site to its former function as a floodplain within the existing North River Watershed. In a phased process, businesses along the river corridor will be relocated to more suitable locations and reestablish the desecrated lands and channelized streams to a picturesque and healthy landscape. Elevated views along the urban edges will allow residents and visitors to look down into the meadow fields and the wetlands of the North River being as the central asset of the landscape. This project transforms this neglected landscape to a scenic urban ecological corridor to provide a more sustainable urban environment for downtown Peabody. Project Objectives The following four planning and design objectives are central for the success of this project. The first objective is a phased land use strategy that will relocate businesses along the North River floodplain and infilling them in other parts of downtown. The next objective is to improve the riparian health and beauty of North River through stream restoration, wetland restoration and recreating a landscape of the grassy meadows. The third objective is to provide a network of paths through the landscape and connect to the North River and a promenade along Walnut Street. The final objective is to restore the connection of downtown Peabody and the surrounding neighborhoods to the North River

Common eye diseases which affect the elderly - website

Many elderly patients with diseases such as ARMD, Glaucoma, and Cataracts, benefit .from both verbal and written education about the diagnosis, treatment, and prognosis. While the practitioner gives a majority of this to the patient during the office visit, supplemental information can be included on an internet website. This website will use layman\u27s tam to describe the disease, treatment modalities and prognosis along with providing Iinks to other sites of interest and support groups

Ports on the Texas Gulf Coast -- Economic Importance and Role for Texas and U.S. Grain Crops.

42 p

Vibrations and Berry Phases of Charged Buckminsterfullerene

A simple model of electron-vibron interactions in buckminsterfullerene ions is solved semiclassically. Electronic degeneracies of C$_{60}$$^{n-}$ induce dynamical Jahn-Teller distortions, which are unimodal for $n\!\ne\!3$ and bimodal for $n\!=\!3$. The quantization of motion along the Jahn-Teller manifold leads to a symmetric-top rotator Hamiltonian. I find Molecular Aharonov-Bohm effects where electronic Berry phases determine the vibrational spectra, zero point fluctuations, and electrons' pair binding energies. The latter are relevant to superconductivity in alkali-fullerenes.Comment: Latex 11 pages. IIT-00

Recreational Exposure to Low Concentrations of Microcystins During an Algal Bloom in a Small Lake

We measured microcystins in blood from people at risk for swallowing water or inhaling spray while swimming, water skiing, jet skiing, or boating during an algal bloom. We monitored water samples from a small lake as a Microcystis aeruginosa bloom developed. We recruited 97 people planning recreational activities in that lake and seven others who volunteered to recreate in a nearby bloom-free lake. We conducted our field study within a week of finding a 10-μg/L microcystin concentration. We analyzed water, air, and human blood samples for water quality, potential human pathogens, algal taxonomy, and microcystin concentrations. We interviewed study participants for demographic and current health symptom information. Water samples were assayed for potential respiratory viruses (adenoviruses and enteroviruses), but none were detected. We did find low concentrations of Escherichia coli, indicating fecal contamination. We found low levels of microcystins (2 μg/L to 5 μg/L) in the water and (<0.1 ng/m3) in the aerosol samples. Blood levels of microcystins for all participants were below the limit of detection (0.147μg/L). Given this low exposure level, study participants reported no symptom increases following recreational exposure to microcystins. This is the first study to report that water-based recreational activities can expose people to very low concentrations of aerosol-borne microcystins; we recently conducted another field study to assess exposures to higher concentrations of these algal toxins

Development of a CsI Calorimeter for the Compton-Pair (ComPair) Balloon-Borne Gamma-Ray Telescope

There is a growing interest in astrophysics to fill in the observational gamma-ray MeV gap. We, therefore, developed a CsI:Tl calorimeter prototype as a subsystem to a balloon-based Compton and Pair-production telescope known as ComPair. ComPair is a technology demonstrator for a gamma-ray telescope in the MeV range that is comprised of 4 subsystems: the double-sided silicon detector, virtual Frisch grid CdZnTe, CsI calorimeter, and a plastic-based anti-coincidence detector. The prototype CsI calorimeter is composed of thirty CsI logs, each with a geometry of $1.67 \times 1.67 \times 10 \ \mathrm{cm^3}$. The logs are arranged in a hodoscopic fashion with 6 in a row that alternate directions in each layer. Each log has a resolution of around $8 \%$ full-width-at-half-maximum (FWHM) at $662 \ \mathrm{keV}$ with a dynamic energy range of around $250\ \mathrm{keV}-30 \ \mathrm{MeV}$. A $2\times2$ array of SensL J-series SiPMs read out each end of the log to estimate the depth of interaction and energy deposition with signals read out with an IDEAS ROSSPAD. We also utilize an Arduino to synchronize with the other ComPair subsystems that comprise the full telescope. This work presents the development and performance of the calorimeter, its testing in thermal and vacuum conditions, and results from irradiation by $2-25 \ \mathrm{MeV}$ monoenergetic gamma-ray beams. The CsI calorimeter will fly onboard ComPair as a balloon experiment in the summer of 2023

Nonperturbative approach to the Hubbard model in C60 cluster

We propose a computational scheme for the Hubbard model in the C60 cluster in which the interaction with the Fermi sea of charges added to the neutral molecule is switched on sequentially. This is applied to the calculation of the balance of charging energies, within a low-energy truncation of the space of states which produces moderate errors for an intermediate range of the interaction strength.Comment: 5 pages, Revtex, 2 figure

Concert recording 2017-04-29

[Track 1]. When the children are asleep from Carousel / Richard Rogers & Oscar Hammerstein -- [Track 2]. Quartet from The secret garden / Lucy Simon -- [Track 3]. Agony from Into the woods / Stephen Sondheim -- [Track 4]. Stepsister\u27s lament from Cinderella / Rogers & Hammerstein -- [Track 5]. Only love from The scarlet pimpernel / Frank Wildhorn -- [Track 6]. Schroeder from You\u27re a good man Charlie Brown / Clark Gesner -- [Track 7]. Where in the world from The secret garden [Track 8]. How could I ever know from The secret garden / Lucy Simon -- [Track 9]. Who am I from Peter Pan / Leonard Bernstein -- [Track 10]. Some things are meant to be from Little Women / Jason Howland -- [Track 11]. With you from Ghost / Bruce Joel Rubin -- [Track 12]. When he sees me from Waitress [Track 13]. Never ever getting rid of me from Waitress / Sara Bareilles -- [Track 14]. Sepia life from Grateful / John Bucchino -- [Track 15]. Thank you for the music from Mamma mia / Benny Andersson & Björn Ulvaeus -- [Track 16]. Agony reprise from Into the woods / Stephen Sondheim -- [Track 17]. If I loved you from Carousel / Rodgers & Hammerstein

Electron--Vibron Interactions and Berry Phases in Charged Buckminsterfullerene: Part I

A simple model for electron-vibron interactions on charged buckminsterfullerene C$_{60}^{n-}$, $n=1,\ldots 5$, is solved both at weak and strong couplings. We consider a single $H_g$ vibrational multiplet interacting with $t_{1u}$ electrons. At strong coupling the semiclassical dynamical Jahn-Teller theory is valid. The Jahn-Teller distortions are unimodal for $n$=1,2,4,5 electrons, and bimodal for 3 electrons. The distortions are quantized as rigid body pseudo--rotators which are subject to geometrical Berry phases. These impose ground state degeneracies and dramatically change zero point energies. Exact diagonalization shows that the semiclassical level degeneracies and ordering survive well into the weak coupling regime. At weak coupling, we discover an enhancement factor of $5/2$ for the pair binding energies over their classical values. This has potentially important implications for superconductivity in fullerides, and demonstrates the shortcoming of Migdal--Eliashberg theory for molecular crystals.Comment: 29 pages (+7 figures, 3 available upon request), LATEX, report-number: BM515

Detailed Abundances in the Ultra-faint Magellanic Satellites Carina II and III

We present the first detailed elemental abundances in the ultra-faint Magellanic satellite galaxies Carina II (Car II) and Carina III (Car III). With high-resolution Magellan/MIKE spectroscopy, we determined abundances of nine stars in Car II including the first abundances of an RR Lyrae star in an ultra-faint dwarf galaxy; and two stars in Car III. The chemical abundances demonstrate that both systems are clearly galaxies and not globular clusters. The stars in these galaxies mostly display abundance trends matching those of other similarly faint dwarf galaxies: enhanced but declining [alpha/Fe] ratios, iron-peak elements matching the stellar halo, and unusually low neutron-capture element abundances. One star displays a low outlying [Sc/Fe] = -1.0. We detect a large Ba scatter in Car II, likely due to inhomogeneous enrichment by low-mass AGB star winds. The most striking abundance trend is for [Mg/Ca] in Car II, which decreases from +0.4 to -0.4 and indicates clear variation in the initial progenitor masses of enriching core-collapse supernovae. So far, the only ultra-faint dwarf galaxies displaying a similar [Mg/Ca] trend are likely satellites of the Large Magellanic Cloud. We find two stars with [Fe/H] < -3.5, whose abundances likely trace the first generation of metal-free Population III stars and are well-fit by Population III core-collapse supernova yields. An appendix describes our new abundance uncertainty analysis that propagates line-by-line stellar parameter uncertainties.Comment: 21 pages + appendix, 9 figures, 6 tables, accepted to Ap