274 research outputs found
Mary Jane Cheney Drake and Daniel Newel Drake III
No full textBlack and white photograph of Mary Jane Cheney Drake and Daniel Newel Drake III, Ruth Drake\u27s paternal grandparent
Volume 1, Number 7 - June 1921
No full textVolume 1, Number 7 - June 1921. 86 pages including covers and advertisements.
Contents
Walsh, John P., Bishop Harkins
O\u27Gara, Joseph P., Bishop Hickey
Gibbons, Charles, The Message of the Rose
McCarthy, Justin P., Classical Studies
Dwyer, F. L., Youth\u27s Spirit
Crawley, A., The Pre-Medical Class
McCarthy, Jr., Dennis J., Just a Song
Redmond, Paul, The Healer of Wounds
Cheney, John, The Willow
Dwyer, F. L., The Idler and the Worker
Ashworth, Charles J., The Sophomore Class
Dwyer, F. L., To Unknown Poets
O\u27Neill, Daniel J., Shakespeare - Master of Thought
Ashworth, Charles J., With Eyes of Love
Dillon, John, The Freshman Class
Affleck, John L., Henry Clay, the Patriot
Fogarty, Joseph A., Editorials
Grimes, Thomas C., Caveat
College Chronicle
Carolan, Matthew J., Athletic
Minimal projective operators
No full textMR0549984The author reviews results (without proofs) from the theory of minimal projective operators. As he remarks, an excellent introduction to this theory is the survey paper by E. W. Cheney and K. H. Price [Approximation theory (Proc. Sympos., Lancaster, 1969), pp. 261–289, Academic Press, London, 1970; MR0265842]. The author is motivated by a number of papers in this topic published after 1970, bringing essentially new results, e.g., an existence theorem for the minimal operators in the class of all projective operators from a linear normed space onto its subspace due to P. D. Morris and Cheney [J. Reine Angew. Math. 270 (1974), 61–76; MR0358188]. The paper consists of the following chapters: (0) Introduction; (1) Projective operators; (2) Fundamental properties of minimal projective operators; (3) Existence and characterization of minimal projective operators; (4) Some polynomial projective operators in the space C[−1,1]; References (45 items)
Volume 1, Number 7 - June 1921
No full textVolume 1, Number 7 - June 1921. 86 pages including covers and advertisements.
Contents
Walsh, John P., Bishop Harkins
O\u27Gara, Joseph P., Bishop Hickey
Gibbons, Charles, The Message of the Rose
McCarthy, Justin P., Classical Studies
Dwyer, F. L., Youth\u27s Spirit
Crawley, A., The Pre-Medical Class
McCarthy, Jr., Dennis J., Just a Song
Redmond, Paul, The Healer of Wounds
Cheney, John, The Willow
Dwyer, F. L., The Idler and the Worker
Ashworth, Charles J., The Sophomore Class
Dwyer, F. L., To Unknown Poets
O\u27Neill, Daniel J., Shakespeare - Master of Thought
Ashworth, Charles J., With Eyes of Love
Dillon, John, The Freshman Class
Affleck, John L., Henry Clay, the Patriot
Fogarty, Joseph A., Editorials
Grimes, Thomas C., Caveat
College Chronicle
Carolan, Matthew J., Athletic
Instrumentation in the Aerospace Industry
No full textFollowing is the continuation of the list of titles and authors: Liquid-Filled Membrane Pressure Gage. By Xavier J. R. Avula. Solid State Bonding and Packaging Technique for Integrated Sensor Transducers. By Anthony D. Kurtz, Joseph R. Mallon and Harold Bernstein. Theory of Mass Flow Measurement - Its Advantages and Instrumentation Related to Same. By Milton H. November. Acoustic Emission Coincidence Detector for Monitoring High RResidual Stress Areas in Symmetrical Pressure Vessels. By Noel R. Sewall. Use of Cellulose Crystallite Structures with Solid State Strain Gages for Humidity and Moisture Measurement. By Ralph L. Fenner. Digital Strobe Control System for Model Helicopter Testing. By J. Frank Devlin. Rotational Temperature Measurement of Gases Using Laser Raman Scattering Techniques. By Louis Liang and Roy Scott Hickman. Accuracy of Type K Thermocouple Wire Below 500 degree F - A Statistical Analysis. By Daniel G. Sanders. Pressure and Impulse Measurements Close to Explosions in Air and in Earth. By Alex B. Wenzel and Edward D. Esparza. New Pulsed Power Strain-Gage System. By H. Duane Arlowe. Performance and Economic Advantages Offered by a Diffused Semiconductor Strain Gage Pressure Transducer. By Robert L. Cheney
Applications of light-induced hyperpolarization in EPR and NMR
No full textMagnetic resonance methods are widely used to provide atomic level information on the structure and dynamics of chemical and biochemical systems, but often suffer from poor sensitivity. This review examines how optical excitation can provide increased electron spin-polarization, and how this can be used to increase sensitivity and/or information content in both Nuclear Magnetic Resonance (NMR) and Electron Paramagnetic Resonance (EPR) spectroscopy
Data and Code Archive for Bolnick et al Indirect Genetic Effects Dominance
No full textREADME file for the data and code archive to accompany:
Bolnick, Arruda, Polania, Simonse, Padhiar, Roth, and Rodgers. 2023. The dominance of coinfecting parasites’ indirect effects on host traits.
Contact:
Dr. Daniel Bolnick
Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs CT 06269, USA.
email: [email protected]
Summary of the research: Parasites can generate Indirect Genetic Effects that modify host traits. When two parasites coinfect a single host, their IGEs may conflict. Which IGE is dominant? We present a mathematical model with numerical simulations to show that IGE dominance is important in dictating evolutionary dynamics. Then we present results from three antigen injection experiments showing that IGEs exist for tapeworms infecting stickleback, and that there is overdominance during coinfection.
Funding: NIH grant 1R01AI123659-01A1 to DIB, and by the University of Connecticut
Archive file contents:
CODE: The order that the code files are run is not important. Simulation results are presented first in the paper. Code analyses were written and executed by D. Bolnick.
Simulations.R This R script runs the numerical simulations needed to recreate the results of the mathematical model presented in the paper. No data files are required to run this code.
Experiment Analyses and Graphs.Rmd This R markdown script produces all statistical results and graphics for the empirical results in the paper (including supplemental figures). This file uses four data files, listed below.
Code was written and analyzed in the following versions:
R version 4.1.0 (2021-05-18)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS 12.6.2
Code dependencies (libraries) are listed at the top of each code file.
DATA: Here each data file is named, and its contents described.
LakeSurvey2009.csv This data file is originally published elsewhere (Bolnick et al 2020 Ecography). It contains parasite load data from a survey of 46 stickleback populations, done in 2009. These data were collected by D. Bolnick, Kim Ballare, and Julia Day. Here we only reproduce the data specifically pertinent to Schistocephalus solidus intensity. Data are arranged as individual fish (rows) and variables (columns), with the following column headers:
A) site_name: the location where fish were sampled
B) habitat_type: estuary, stream, or lake
C) sex: sex of the fish
D) mass: fish mass (grams)
E) std_length; fish standard length (mm)
F) Schisto_totalMass: total mass (g) of all Ssolidus in the fish
G) Schistocepahlus: the number of S.solidus in the fish.
PolaniaExperiment.csv This data file is for Experiment 1 in the paper. We injected Roselle Lake stickleback with tapeworm protein extract from one of four source lakes, and scored fibrosis 10 days later. This study was conducted and data collected by Christian Polania. Data are arranged as individual fish (rows) and variables (columns) with the following column headers:
A) lake: the lake from which the tapeworm was collected to obtain protein extract. Roselle, Boot, Cheney, and Gosling Lakes.
B) ID: fish ID
C) sex: fish sex (m for male, f for female)
D) fibrosis: fibrosis score on an ordinal scale of 0 to 4
E) lakeBin: a numerical category for lake
F) sexBin: a numerical scoring for sex, 1 for females 0 for males
ArrudaExperiment.csv This data file is for Experiment 2 in the paper. We injected Roselle Lake stickleback with either saline (control), one tapeworm protein, or a mix of two tapeworm proteins (at two concentrations), then scored fibrosis. This study was conducted and data collected by Sophia Arruda, Lauren Simonse, with help from Maria Rodgers and Andrea Roth and Dan Bolnick. Data are arranged as individual fish (rows) and variables (columns) with the following column headers:
A) Fish_ID: fish ID
B) Treatment:
Control = saline only
Boot = Boot Lake protein only
Cheney = Cheney Lake protein only
Roselle = Roselle Lake protein only
RCLow = Roselle + Cheney coinjection at low concentration
RCHigh = Roselle + Cheney coinjection at high concentration
RBLow = Roselle + Boot coinjection at low concentration
RBHigh = Roselle + Boot coinjection at high concentration
C) Roselle: presence/absence (T/F) of Roselle Lake protein injection
D) Boot: presence/absence (T/F) of Boot Lake protein injection
E) Cheney: presence/absence (T/F) of cheney Lake protein injection
F) Concentration: Low (substitutive design), High (additive design), only for coinjected fish, NA otherwise
G) Fibrosis_score: Primary observer (through microscope and hands-on dissection)
H, I, J,K) - scores by other observers using video screen / video recording
L) Mass_g: fish mass in grams
M) Sex: fish sex
N) Group: treatment batch; fish were injected in temporal blocks
O) Discard_data: when Treatment assignment is not confident due to ambiguous elastomer color dye marks (some colors were harder to distinguish in small quantities or were lost)
Arshad.csv: Data for Supplementary Figure 3. We injected tapeworm protein at very different concentrations to re-evaluate the lack of concentration effect (confirming there is no detectable effect of concentration). The experiment was conducted by Arshad Padhiar. The file contains two columns:
A) Treatment: Negative control (saline), Protein diluted, Protein full concentration, and positive control (alum).
B) Fibrosis: fibrosis score on an ordinal 0 - 4 scale.
Copyright information: MIT License:
Copyright (c) 2023, Daniel I. Bolnick
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.</p
Optically-generated Overhauser dynamic nuclear polarization:A numerical analysis
No full textRecently, an alternative approach to dynamic nuclear polarization (DNP) in the liquid state was introduced using optical illumination instead of microwave pumping. By exciting a suitable dye to the triplet state which undergoes a diffusive encounter with a persistent radical forming a quartet-doublet pair in the encounter complex, dynamic electron polarization (DEP) is generated via the radical-triplet pair mechanism. Subsequent cross-relaxation generates nuclear polarization without the need for microwave saturation of the electronic transitions. Here, we present a theoretical justification for the initial experimental results by means of numerical simulations. These allow investigation of the effects of various experimental parameters, such as radical and dye concentrations, sample geometry, and laser power, on the DNP enhancement factors, providing targets for experimental optimization. It is predicted that reducing the sample volume will result in larger enhancements by permitting a higher concentration of triplets in a sample of increased optical density. We also explore the effects of the pulsed laser rather than continuous-wave illumination, rationalizing the failure to observe the optical DNP effect under illumination conditions common to DEP experiments. Examining the influence of the illumination duty cycle, the conditions necessary to permit the use of pulsed illumination without compromising signal enhancement are determined, which may reduce undesirable laser heating effects. This first simulation of the optical DNP method therefore underpins the further development of the technology
Optimisation of dynamic nuclear polarisation using “off-the-shelf” Gd3+ based polarising agents
No full textA range of simple gadolinium salts has been demonstrated to be suitable for use as polarising agents for dynamic nuclear polarisation. The gadolinium concentrations providing the optimum signal enhancements were also identified.</jats:p
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