Digital Commons Network^™

High-Latitude Observations Of Dissipation-Range Turbulence By The Ulysses Spacecraft During The Solar Minimum Of 1993–96: The Spectral Break And Anisotropy, Abigale S. Watson, Charles W. Smith, Anastasia V. Marchuk, Matthew R. Argall, Colin J. Joyce, Philip A. Isenberg, Bernard J. Vasquez, Nathan A. Schwadron, Neil Murphy

Faculty Publications

We examine Ulysses magnetic field observations from 1993 to 1996 as the spacecraft made its first fast-latitude scan from the southern to the northern hemisphere. Most of the observations we use are representative of high-latitude solar minimum conditions. We examine magnetic field power spectra characteristics of interplanetary turbulence at high frequencies, where the spectrum breaks from an inertial range into the ion dissipation range. The onset and spectral index of the dissipation spectrum are consistent with low-latitude observations at 1 au. Both ranges have a ratio of power in perpendicular magnetic field components to parallel components near 3. The power …

Preventing Campus Violence, Reimagining Physical Education, Allison Bell

UNH Today Archive

No abstract provided.

Using Variable-Resolution Grids To Model Precipitation From Atmospheric Rivers Around The Greenland Ice Sheet, Annelise Waling, Adam Herrington, Katharine Duderstadt, Jack E. Dibb, Elizabeth A. Burakowski

Faculty Publications

Atmospheric rivers (ARs) are synoptic-scale features that transport moisture poleward and may cause short-duration, high-volume melt events on the Greenland ice sheet (GrIS). In contrast with traditional climate modeling studies that rely on coarse (1 to 2°) grids, this project investigates the effectiveness of variable-resolution (VR) grids in modeling ARs and their subsequent precipitation using refined grid spacing (0.25 and 0.125°) around the GrIS and 1° grid spacing for the rest of the globe in a coupled land–atmosphere model simulation. VR simulations from the Community Earth System Model version 2.2 (CESM2.2) bridge the gap between the limitations of global and …

New Center Advances Metal Forming Technologies, Beth Potier

UNH Today Archive

No abstract provided.

Mental Health Resource Guide New Hampshire, Suzanne Meattey

UNH Cooperative Extension

No abstract provided.

Footprint Tools Tiptoeing Towards Nitrogen Sustainability, James N. Galloway, Elizabeth A. Castner, Elizabeth S M Dukes, Jessica Fox, Allison M. Leach

Faculty Publications

As we face multiple environmental crises (e.g. climate change, nutrient pollution, freshwater scarcity), there is often a disconnect between an entity’s activities and the pollution resulting from that activity. Footprint tools help address this disconnect. They are effective in educating people, institutions and communities on how their resource use results in environmental pollution and what we can do to moderate that pollution. These tools connect an entity’s activities with the associated pollution. Footprint tools are also constantly evolving. As we better understand how to best estimate emissions—especially from sources further removed like those from the supply chain—the guidance and methods …

Footprint Tools Tiptoeing Towards Nitrogen Sustainability, James N. Galloway, Elizabeth A. Castner, Elizabeth S M Dukes, Jessica Fox, Allison M. Leach

Faculty Publications

As we face multiple environmental crises (e.g. climate change, nutrient pollution, freshwater scarcity), there is often a disconnect between an entity’s activities and the pollution resulting from that activity. Footprint tools help address this disconnect. They are effective in educating people, institutions and communities on how their resource use results in environmental pollution and what we can do to moderate that pollution. These tools connect an entity’s activities with the associated pollution. Footprint tools are also constantly evolving. As we better understand how to best estimate emissions—especially from sources further removed like those from the supply chain—the guidance and methods …

Marking Healthy Aging Month With Evidence-Based Advice, Beth Potier

UNH Today Archive

No abstract provided.

Harnessing The Power Of The Sea For Renewable Energy, Beth Potier

UNH Today Archive

No abstract provided.

Bauer Recognized For Research Achievement By American Chemical Society, Brooks Payette

UNH Today Archive

No abstract provided.

Environmental Sensitivity Index (Esi) Feasibility Study Of All-Hazards Indices Expansion, Research Planning, Inc

Coastal Response Research Center

Environmental Sensitivity Index (ESI) products are developed by the National Oceanic and Atmospheric Administration (NOAA) to support planning for and responding to coastal oil and chemical spills. ESI data describe a variety of coastal resources that are at risk from oil spills that include sensitive shorelines (e.g., marshes, tidal flats), biological resources (e.g., birds, shellfish beds), and human-use resources (e.g., public beaches, water intakes). ESI maps and datasets include shoreline types that are ranked according to their sensitivity to oil and chemical spills. This index was the original focus of ESI maps and has been a standard for industry and …

Enhanced Aqueous Formation And Neutralization Of Fine Atmospheric Particles Driven By Extreme Cold, James R. Campbell, Michael Battaglia Jr, Kayane K. Dingilian, Meeta Cesler-Maloney, William R. Simpson, Ellis S. Robinson, Peter F. Decarlo, Brice Temime-Roussel, Barbara D’Anna, Andrew L. Holen, Judy Wu, Kerri A. Pratt, Jack E. Dibb, Athanasios Nenes, Rodney J. Weber, Jingqiu Mao

Faculty Publications

The prevailing view for aqueous secondary aerosol formation is that it occurs in clouds and fogs, owing to the large liquid water content compared to minute levels in fine particles. Our research indicates that this view may need reevaluation due to enhancements in aqueous reactions in highly concentrated small particles. Here, we show that low temperature can play a role through a unique effect on particle pH that can substantially modulate secondary aerosol formation. Marked increases in hydroxymethanesulfonate observed under extreme cold in Fairbanks, Alaska, demonstrate the effect. These findings provide insight on aqueous chemistry in fine particles under cold …

Going Pro, Keith Testa

UNH Today Archive

No abstract provided.

Symposium Transcript: Clarett V. Nfl: 20 Years Later And The Future Of Age Limits In Pro Sports, Michael Dube, Alan Milstein, Michelle Clarett, Maurice Clarett, Benjamin Block, Michael Mccann, The Honorable Schira Scheindlin

UNH Sports Law Review

No abstract provided.

Student Note: Hoops, Hurdles, And Legal Layups: How Public Universities Like Indiana May Be Able To Follow Dartmouth's Lead Towards Unionization, Riley Albert

UNH Sports Law Review

No abstract provided.

Michigan Football's Not-So-Secret Agent: How Agency Law Imposes The Ncaa's "Death Penalty" Following The Sign-Stealing Scandal, Ryan A. Buchanan

UNH Sports Law Review

No abstract provided.

Revisiting Workers' Compensation Protection In The National Football League Collective Bargaining Agreement, Brooke Chronister, Joshua Winneker

UNH Sports Law Review

No abstract provided.

Mercury Distribution And Microbially Mediated Mercury Methylation Potential Above And Below The Head-Of-Tide Mill Pond Dam, Durham, Nh, Sophia Carson

Master's Theses and Capstones

Mercury (Hg), and its subsequent transformation to the highly toxic compound methylmercury (MeHg) by microorganisms possessing the recently discovered hgcAB gene complex is of great concern on a global scale. In the Oyster River (OR) system in Durham, New Hampshire, where the historic head-of-tide Mill Pond Dam (MPD) is set to be removed in the near future, this issue is especially pertinent, as Hg is commonly found at alarmingly high concentrations in waterways and dams and will be released downstream upon the extraction of the impoundment. Aquatic sediment samples were collected across a time series throughout the OR system and …

Carbon Cycling Driven By Disturbance In A Tropical Freshwater Ecosystem, Alicia Dixon

Master's Theses and Capstones

Streams are hotspots for biogeochemical cycling in freshwater ecosystems and act as transformers for elements moving throughout their watersheds. Small watersheds in particular are the ideal natural laboratory for exploring how freshwater systems react to inputs and outputs of carbon, nitrogen, and other trace elements. Carbon cycling occurs throughout watersheds at different scales and through different pathways. Organic matter enters a stream from surrounding terrestrial environments, and is subsequently consumed by microbes, macroinvertebrates, and other freshwater organisms. The fate of organic matter in a stream is diverse, but some common pathways include emission as carbon dioxide through metabolic processes, movement …

Land Conservation Planning For Flood Resilience In New Hampshire's Coastal Watershed, Michal Zahorik

Doctoral Dissertations

Land conservation plays an important role in managing flood risk. It enhances community resilience and supports multiple ecosystem functions. This qualitative study investigates how local and regional land conservation strategies advance flood resilience in New Hampshire’s coastal watershed. Focusing on the institutional context, this thesis analyzes the effectiveness of local land conservation planning efforts, explores cross-scale interactions between local and regional planning, and identifies barriers and opportunities for flood-focused conservation projects. The data for this research were collected through semi-structured interviews with representatives of municipalities, public and private conservation organizations, regional planning commissions, partnership organizations, and landowners. The secondary data …

Liquefaction Mitigation Of Sands With Plastic Fines Via Microbial Induced Partial Saturation, Maya Norris

Master's Theses and Capstones

Microbial Induced Partial Saturation (MIPS) is a sustainable and cost-effective approach to mitigate liquefaction; however, more research needs to be done to apply MIPS to a variety of different soil types and conditions. The investigation consisted of running a series of undrained strain-controlled cyclic Direct Simple Shear (DSS) tests on fully saturated samples with varying non-plastic fine and plastic fine content. Some tests have been conducted on MIPS-treated samples; however, more tests are needed to verify the results. Previous investigations have been conducted to evaluate the pore water pressure response of sands with added non-plastic fines with and without MIPS …

Neural Retrieval Through Entities And Text Understanding, Pooja Himanshu Oza

Doctoral Dissertations

For various artificial intelligence systems, automatic text understanding algorithms that go beyond mere pattern recognition are helpful. For instance, understanding web pages is beneficial for Information Retrieval (IR) systems to retrieve relevant information. In the most common form, IR systems retrieve relevant information as entities or documents in response to keywords-based queries. Traditional IR models use lexical matching between the query terms and document terms to identify relevant documents. With the emergence of neural networks, Neural IR approaches utilize deep learning techniques to learn high-dimensional representations of documents and queries that go beyond term matching.

On the other hand, with …

Three Essays On Disability Policy And Employment Of People With Disabilities, Xueting Sun

Doctoral Dissertations

The employment of people with disabilities is substantially and persistently lower than the employment of people without disabilities (Burkhauser et al., 2002; Houtenville & Bach, 2024; Livermore & Honeycutt, 2015). In 2022, using American Community Survey data, the employment-to-population ratio of people with disabilities ages 18-64 was 44.5 percent, compared to 78.9 percent for their counterparts without disabilities (Houtenville & Bach, 2024). This dissertation consists of three essays on disability policy and employment of people with disabilities. The first essay (Chapter 2) explores the effect of the Medicaid expansion, authorized by the Patient Protection and Affordable Care Act, on employment …

Development Of A Layered Unsupervised Classifier Of Plasma Regions And A Bootstrap-Ensemble Neural Network Bow Shock Mode, James Andrew Edmond

Doctoral Dissertations

The use of supervised methods in space science have demonstrated powerful capability in classification tasks, but purely unsupervised methods have been less utilized for the classification of spacecraft observations. We use a combination of unsupervised methods, being principal component analysis, self-organizing maps, and hierarchical agglomerative clustering, to classify THEMIS and MMS observations as having occurred in the magnetosphere, magnetosheath, or the solar wind. The resulting classification are validated visually by analyzing the distribution of classifications and studying individual time series as well as by comparison to the labeled dataset of a previous model, against which ours has an accuracy of …

Innovative Approaches To Dna-Based Materials: Development Of Bottlebrush Polymers, Supramolecular Hydrogels, And Psoralen-Enhanced 3d Printing Of Dna Bioinks, Nicholas Pierini

Doctoral Dissertations

This thesis explores innovative approaches to enhancing the functionality and applications of DNA-based materials through the development of DNA bottlebrush polymers (BBPs), DNA-intercalating supramolecular hydrogels (DISHs), and psoralen-based 3D printing techniques. The first chapter presents the synthesis and characterization of linear and cyclic DNA BBPs using a grafting-to approach. Plasmid DNA (pDNA) is used as the polymeric backbone, grafted with polyethylene glycol (PEG) side chains of varying molecular weights (750 Da, 2000 Da, and 5000 Da) to improve stability and functionality. Achieving high graft densities, up to 24% for mPEG750-CEA, and purifying the PEG-DNA conjugates were significant challenges addressed through …

Oscillatory Boundary Layer And Sediment Dynamics Over And Within Mobile Rippled Beds, Savannah Devoe

Doctoral Dissertations

In nearshore environments, small-scale bedforms, or ripples, are important contributors to net morphologic change by means of bedload and suspended load sediment transport. In this dissertation, new characterizations of boundary layer and sediment dynamics are made using high-resolution observations of mobile, rippled beds subjected to oscillatory flow for the purpose of evaluating existing parameterizations of bedload transport. The spatiotemporal distribution of shear stress at and within a mobile, rippled bed is obtained via the derivation and application of a new Momentum Integral Method (“MIM”) expression for bed shear stress to data from a two-phase Large Eddy Simulation and Discrete Particle …

The Effect Of Woodfiber Additives On Pythium Root Rot And Substrate Microbiome, Isabella Alexandra Borrero

Master's Theses and Capstones

The exponential growth of the greenhouse industry in recent years has led to an increasing demand for economic, “green”, soilless substrates and soilless substrate amendments. To meet this demand, many growers have begun incorporating wood fibers (WFs) into their production systems because they are both economic and renewable. WF’s rise in popularity has motivated an uptick in research focused on understanding how WF amendments affect substrate physical and chemical properties, and how these changes influence plant health, soil-borne disease trends, and microbiome dynamics. Wood fibers have been reported to suppress damping-off of radish caused by Rhizoctonia solani, however, the scope …

Mindfulness And Meditation: Activation Likelihood Estimates (Ale) And Meta-Analytic Connectivity Modelling (Macm), Ariana Christine White

Master's Theses and Capstones

Introduction: Mindfulness, a popular practice that originated as a Buddhist custom, encompasses a myriad of techniques such as meditation, yoga, and journaling. Such practice is often suggested for individuals with mental health disorders (MHD). Recently, mindfulness-based interventions, including forms of psychotherapy like Acceptance and Commitment Therapy, have gained prominence. Investigations into brain activity associated with mindfulness-based interventions have identified positive modulation of a Triple Network Model (TNM), a confluence of three brain networks that are commonly associated with MHD. Targeting these networks and understanding mindfulness-specific connectivity may provide evidence for regions to target during intervention in order to induce neural …

Contribution Of Type Three Secretion To Competitive Survival Of Vibrio Parahaemolyticus In The Great Bay Estuary, Anna Lin Early

Master's Theses and Capstones

Over the past 12 years, infections from the ubiquitous coastal bacterium and human pathogen V. parahaemolyticus have increased in the Northeast USA. The majority of the infections here are caused by the hypervirulent ST36 which originated in the Pacific Northwest USA where it caused only sporadic infections. This sequence type seems to have found its niche in the Northwest Atlantic where climate events likely created environmental conditions allowing ST36 strains or strains carrying one of the unique virulence factors on the VPaIγ, associated with this sequence type, to maintain and spread up the coast of New England. In the Great …

Automatic-Adjusting Drip Chlorination System Without Electricity, Brian Genet

Master's Theses and Capstones

Developing countries often use open-source water including groundwater, snowmelt, and springsas the primary source of their drinking water. These water sources increase the risk of contamination from bacteria and pathogens from nearby humans and animals. Ingestion of contaminated water can cause illnesses, and in extreme cases, death. While the technology to decrease or even eliminate the risk of contamination in drinking water exists, most of these methods require electricity, which is not necessarily readily available or sustainable in developing countries. The objective of this study is disinfection without electricity as a means to provide disinfected drinking water to developing countries. …