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Evaluating The Effects Of Wildfires On Microbial Communities And Gene Expression Involved In Nitrogen Cycling In Arctic Tundra Soils, Alma Idali Hernandez Sep 2024

Evaluating The Effects Of Wildfires On Microbial Communities And Gene Expression Involved In Nitrogen Cycling In Arctic Tundra Soils, Alma Idali Hernandez

Master's Theses and Capstones

Wildfires in the Arctic tundra are increasing in frequency in response to global warming.Under this changing fire regime, important components of permafrost ecosystems, such as soils and their microbial communities, are disturbed by the burning of vegetation, organic soils, and their nutrients. Previous studies of wildfires have documented significant changes in nutrient availability following wildfires, including an increase in inorganic nitrogen (N), which is a key nutrient component of soil organisms. Microbes are the main drivers of transformation of soil N, which is ultimately taken up by both microbes and plants as a nutrient source. However, due to the historical …

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Design Of An Axial-Flow Tidal Turbine Test Bed And Initial Validation And Performance Testing With 1:5 Scale Mhkf1 Rotor, Megan Nicole Andersen Sep 2024

Design Of An Axial-Flow Tidal Turbine Test Bed And Initial Validation And Performance Testing With 1:5 Scale Mhkf1 Rotor, Megan Nicole Andersen

Master's Theses and Capstones

The University of New Hampshire (UNH) and XFlow Energy jointly designed and built a scale axial-flow turbine (AFT) test bed under the Atlantic Marine Energy Center (AMEC) work scope. The test bed was fabricated to fill an infrastructure gap in tidal energy testing equipment at UNH. The combination of rotor size and achievable towing speeds allowed for testing in a regime where turbine performance became independent of Reynolds number effects, while also maintaining reasonable blockage. As a result, data collected from the test bed can be used to predict the performance of full-scale tidal turbines. Results and uncertainty analysis were …

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Determining Asphalt Pavement Milling Best Practices Through Enhanced Understanding Of Milling Operations, Kaleigh Miech Sep 2024

Determining Asphalt Pavement Milling Best Practices Through Enhanced Understanding Of Milling Operations, Kaleigh Miech

Master's Theses and Capstones

Milling of asphalt pavements is a commonly used technique in many cases of maintaining and rehabilitating roadways. That said, implementing these milling operations has potential to cause harm to the layers below the mill line due to it being a relatively high-stress and energy activity. In this study, the impact of milling to the pavement layer directly below the mill line was evaluated for five parameters: the pavement temperature at the time of milling, the amount of time between milling and post-mill overlay construction, the depth of milling relative to the asphalt lift interfaces, the structure of the existing pavement, …

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Just Maps? Exploring The Development And Use Of Environmental Justice Mapping Tools In The United States, Claire Emrick Sep 2024

Just Maps? Exploring The Development And Use Of Environmental Justice Mapping Tools In The United States, Claire Emrick

Master's Theses and Capstones

The disparate distribution of environmental risks and benefits is well documented in the United States. In response, interactive mapping tools that attempt to represent and address environmental justice (EJ) issues have proliferated in recent years. By synthesizing socioeconomic and environmental data into a user-friendly interface, EJ mapping tools can inform advocacy and policy decisions that benefit disadvantaged communities. Numerous studies have contributed to the development and assessment of the indices and datasets found in these mapping tools, while other articles have highlighted approaches to and lessons learned from single cases of EJ mapping tool development. However, only a few studies …

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Judicial Integrity Under Scrutiny: Analyzing Misconduct Allegations During Times Of Turmoil, Nicholas Gigliotti Sep 2024

Judicial Integrity Under Scrutiny: Analyzing Misconduct Allegations During Times Of Turmoil, Nicholas Gigliotti

Master's Theses and Capstones

Judicial ethics, grounded in principles of impartiality and integrity, face threats when public perceptions are compromised by instances of misconduct and the actions of those who fail to adhere to these core standards. Since 1980, the Judicial Conduct and Disability Act has provided a mechanism for reporting and addressing allegations of misconduct that do not reach the level of impeachment. This process offers complainants a means to hold judges accountable for their actions and often serves as a forum for addressing grievances that might otherwise go unheard. While the federal judiciary is typically insulated from external pressures due to lifetime …

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Mechanical Properties Of Composite Fiberglass Rods Used For Ocean Structure Tethers To Mitigate North Atlantic Right Whale Entanglement, Louis Gitelman Sep 2024

Mechanical Properties Of Composite Fiberglass Rods Used For Ocean Structure Tethers To Mitigate North Atlantic Right Whale Entanglement, Louis Gitelman

Master's Theses and Capstones

Entanglements in rope fishing gear significantly threaten the critically endangered North Atlantic Right Whale’s health and population (Knowlton, 2022; Brooker & Matthias, 2020). This thesis investigates the potential to mitigate the risk of whale entanglements in ocean structure tether components by using stiff fiberglass composite rods instead of rope. This potential was investigated through five main avenues:1. A survey was conducted of the availability, cost, and material properties of available composite rods and their operability in marine structures. 2. Four-point flexure testing was conducted to measure the degradation of the material properties of fiberglass composite rod samples as a function …

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Spatial And Temporal Drivers Of Paternity In Saltmarsh Sparrow, Talia Marie Kuras Sep 2024

Spatial And Temporal Drivers Of Paternity In Saltmarsh Sparrow, Talia Marie Kuras

Master's Theses and Capstones

The Saltmarsh Sparrow (Ammospiza caudacuta) is a non-territorial, multiply mating passerine with an uncommon polygynandrous mating system in which females are reproductively available with primarily synchronous timing during 3 breeding cycles within the breeding season. In similarly multiply mating species with synchronously available females, home range size and time within breeding season have been identified as drivers of male reproductive success; however, these are atypical characteristics of success in avian mating systems. We investigated the relationship between male Saltmarsh Sparrow home range size, location, age, time within breeding season, and male reproductive success. We performed nest monitoring, mist netting, and …

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Bioimpedance Smart Needle System For Real-Time Tissue Detection During Intramuscular Injection, Marc Peter Tausanovitch Sep 2024

Bioimpedance Smart Needle System For Real-Time Tissue Detection During Intramuscular Injection, Marc Peter Tausanovitch

Master's Theses and Capstones

Injectable drug delivery is an extremely commonplace procedure in the world ofmedicine, with over 16 billion injections administered annually. Due to the high vascularity of muscle tissue, the intramuscular (IM) route is preferred for many antibiotic, biological, and hormonal drugs. Appropriate needle length plays a critical role in the success of IM injection, ensuring that the drug is deposited in the core muscle. Instances of over- or under-penetration are associated with reduced drug bioavailability and vaccine related injury. Unfortunately, guidelines for needle length selection do not always yield positive results due to practitioner error or adverse patient physiology. This thesis …

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Evaluating The Long-Term Performance Of Recycling Agents In High-Rap Content Asphalt Mixtures, Zheng Wang Sep 2024

Evaluating The Long-Term Performance Of Recycling Agents In High-Rap Content Asphalt Mixtures, Zheng Wang

Master's Theses and Capstones

The Utilization of Reclaimed Asphalt Pavement (RAP) has become a pivotal strategy for improving infrastructure sustainability. However, with a high RAP content included in the pavement material, the aged asphalt will decline the mechanical properties of the flexible pavement and thus decrease the durability. Recycling agents (RAs) are products with chemical and physical characteristics designed to restore the rheological properties of reclaimed asphalt material and improve the performance of recycled asphalt mixtures with high RAP content that promote economic and environmental benefits. Plenty of the RA products are proven effective once blended with asphalt; however, the long-term effect of the …

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Investigating Late Pleistocene To Recent Bimodal Sedimentation In The Terrebonne Basin, Gulf Of Mexico, Kayla Tozier Sep 2024

Investigating Late Pleistocene To Recent Bimodal Sedimentation In The Terrebonne Basin, Gulf Of Mexico, Kayla Tozier

Master's Theses and Capstones

The UT-GOM2-2 Deepwater Hydrate Coring Expedition collected continuous conventional and pressure cores in the Terrebonne Basin, Gulf of Mexico (GOM) to 155 mbsf to investigate the physical, chemical, and biological properties of sediments within, bounding, and overlying methane hydrates. Calcareous nannofossil biostratigraphy constrains the age of the upper 145 mbsf to the Pleistocene (<0.66 Ma) to recent. Description of UT-GOM2-2 Hole H003 revealed a lithologic unit from 4.5 to 152 mbsf, defined by bimodal sedimentation of carbonate oozes and interbedded muds. In this thesis, we examine the shallowest mud-to-carbonate ooze transition to investigate the processes driving this bimodal sedimentation through measurements of biogenic silica (BSi), total carbon (TC), total nitrogen (TN), total sulfur (TS), total organic carbon (TOC), and δ13C of total organic carbon (δ13C-TOC) from 4.62 to 37.83 mbsf. Mixed planktonic foraminifers were picked for radiocarbon dates through 14.39 mbsf, constraining the last ~42,000 years. Our results are integrated with additional existing shipboard and post-cruise data sets, including XRF core scanning data, calcareous nannofossil biostratigraphy, reworked calcareous nannofossil abundance, smear slide analyses, and magnetic susceptibility data. Our integrated results suggest that the BSi record represents reworked (RW) Cretaceous radiolarians delivered fluvially to the site, rather than Pleistocene to recent radiolarians produced via in situ productivity. Evidence of greater terrigenous flux by RW Cretaceous microfossils (both calcareous nannofossils and radiolarians) during Marine Isotope Stage (MIS) 2 is consistent with a closer distance of the site to the shoreline during a sea-level low stand. Increased grain size and sand delivery during the last deglacial (16 to 8.9 ka) are consistent with meltwater pulse-driven sedimentation documented elsewhere in the Gulf of Mexico (e.g. Emiliani et al., 1975; Aharon, 2003). Below the radiocarbon constrained interval, two biostratigraphic age datums from 70 to 290 ka nearly constrain a full glacial-interglacial cycle (most of MIS 4-8), where coarse turbidite delivery is greatly increased during a glacial period, consistent with sea level low stands, and reworked sediment delivery greatly increases towards the interglacial period, consistent with meltwater pulses and higher sea level. Though stadial/interstadial processes are evident in our datasets, it appears that the bimodal sedimentation represents a systematic shift in the proximity of the site to the Mississippi River mouth. Low and relatively consistent CaCO3 content, depleted δ13C values, and high TOC:TN values within the carbonate ooze interval suggest that in situ productivity does not increase, but rather dilution by terrigenous sediment decreases. These findings have implications for the deposition of coarse- and fine-grained lithologies on the northern Gulf of Mexico, which may ultimately influence gas hydrate distribution along continental margins. Additionally, these findings suggest that BSi can be measured in GOM sediments as a proxy for the Mississippi River flux.

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Mitigation Of Road Mortality Of Freshwater Turtles In New Hampshire With An Emphasis On Blanding's Turtles (Emydoidea Blandingii), Lauren White Sep 2024

Mitigation Of Road Mortality Of Freshwater Turtles In New Hampshire With An Emphasis On Blanding's Turtles (Emydoidea Blandingii), Lauren White

Master's Theses and Capstones

The Blanding’s turtle (Emydoidea blandingii) is a state-endangered species in New Hampshire that is particularly vulnerable to road mortality due to reproductive life history traits, habitat use, and migration patterns. Successful conservation techniques to mitigate wildlife road mortality include building fences and wildlife crossing structures (eco-passages) at roadkill hot spots. A collaborative research group designed a road mortality risk model to understand turtles' relative road mortality risk at existing wetland crossing sites in New Hampshire and to assess whether culverts at these sites may function as eco-passages. To ground-truth this model, roadkill surveys and wildlife camera monitoring techniques were used …

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Utilisation Of The Site Assessment Energy Indices For Aquaculture In Exposed Waters: Biology, Technology, Operations And Maintenance, Kevin G. Heasman, Tyler Sclodnick, Nils Goseberg, Nicholas Scott, Michael Chambers, Tobias Dewhurst, Samuel Rickerich, Heidi Moe Føre, Bela H. Buck Aug 2024

Utilisation Of The Site Assessment Energy Indices For Aquaculture In Exposed Waters: Biology, Technology, Operations And Maintenance, Kevin G. Heasman, Tyler Sclodnick, Nils Goseberg, Nicholas Scott, Michael Chambers, Tobias Dewhurst, Samuel Rickerich, Heidi Moe Føre, Bela H. Buck

Faculty Publications

When moving from a very sheltered aquaculture site to a very exposed oceanic aquaculture site, the energy increases proportionally in a continuum. Lojek et al. (in review) considered the primary influential parameters (water current, wave height, wave period, wavelength and water depth) which influence the species, structure, technology, methods, and operational aspects of any aquaculture endeavour and investigated six possible indices which cover these variables. Added to advanced computer modelling, assisted by detailed and constant environmental monitoring, it may be possible to refine site selection, structure selection and design, species selection, equipment and logistic requirements and health and safety requirements. …

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Observations Of Low And Intermediate Spectral Peak Blazars With The Imaging X-Ray Polarimetry Explorer, Herman L. Marshall, Ioannis Liodakis, Alan P. Marscher, Niccolò Di Lalla, Svetlana G. Jorstad, Dawoon E. Kim, Riccardo Middei, Michela Negro, Nicola Omodei, Abel L. Peirson, Matteo Perri, Simonetta Puccetti, Marco Laurenti, Iván Agudo, Giacomo Bonnoli, Andrei V. Berdyugin, Elisabetta Cavazzuti, Nicole Rodriguez Cavero, Immacolata Donnarumma, Laura Di Gesu, Jenni Jormanainen, Henric Krawczynski, Elina Lindfors, Greg Madjeski, Frédéric Marin, Francesco Massaro, Luigi Pacciani, Juri Poutanen, Fabrizio Tavecchio, Pouya M. Kouch, Francisco José Aceituno, Maria I. Bernardos, Víctor Casanova, Maya García-Comas, Beatriz Agís-González, César Husillos, Alessandro Marchini, Alfredo Sota, Dmitry Blinov, Ioakeim G. Bourbah, Sebastian Kielhmann, Evangelos Kontopodis, Nikos Mandarakas, Stylianos Romanopoulos, Raphael Skalidis, Anna Vervelaki, George A. Borman, Evgenia N. Kopatskaya, Elena G. Larionova, Daria A. Morozova, Sergey S. Savchenko, Andrey A. Vasilyev, Alexey V. Zhovtan, Carolina Casadio, Juan Escudero, Joana Kramer, Ioannis Myserlis, Efthalia Trainou, Ryo Imazawa, Mahito Sasada, Yasushi Fukazawa, Koji S. Kawabata, Makoto Uemura, Tsunefumi Mizuno, Tatsuya Nakaoka, Hiroshi Akitaya, Joseph R. Masiero, Dimitri Mawet, Georgia V. Panopoulou, Samaporn Tinyanont, Masato Kagitani, Vadim Kravtsov, Takeshi Sakanoi, Matthew Dattolo, Mark Gurwell, Garrett Keating, Ramprasad Rao, Whee Yeon Cheong, Hyeon-Woo Jeong, Sincheol Kang, Sang-Hyun Kim, Sang-Sung Lee, Emmanouil Angelakis, Alexander Kraus, Antonio Hales, Seiji Kameno, Ruediger Kneissl, Hugo Messias, Hiroshi Nagai, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Fiamma Capitanio, Simone Castellano, Chen-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Alessandro Di Marco, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Philip Kaaret, Vladimir Karas, Fabian Kislat Aug 2024

Observations Of Low And Intermediate Spectral Peak Blazars With The Imaging X-Ray Polarimetry Explorer, Herman L. Marshall, Ioannis Liodakis, Alan P. Marscher, Niccolò Di Lalla, Svetlana G. Jorstad, Dawoon E. Kim, Riccardo Middei, Michela Negro, Nicola Omodei, Abel L. Peirson, Matteo Perri, Simonetta Puccetti, Marco Laurenti, Iván Agudo, Giacomo Bonnoli, Andrei V. Berdyugin, Elisabetta Cavazzuti, Nicole Rodriguez Cavero, Immacolata Donnarumma, Laura Di Gesu, Jenni Jormanainen, Henric Krawczynski, Elina Lindfors, Greg Madjeski, Frédéric Marin, Francesco Massaro, Luigi Pacciani, Juri Poutanen, Fabrizio Tavecchio, Pouya M. Kouch, Francisco José Aceituno, Maria I. Bernardos, Víctor Casanova, Maya García-Comas, Beatriz Agís-González, César Husillos, Alessandro Marchini, Alfredo Sota, Dmitry Blinov, Ioakeim G. Bourbah, Sebastian Kielhmann, Evangelos Kontopodis, Nikos Mandarakas, Stylianos Romanopoulos, Raphael Skalidis, Anna Vervelaki, George A. Borman, Evgenia N. Kopatskaya, Elena G. Larionova, Daria A. Morozova, Sergey S. Savchenko, Andrey A. Vasilyev, Alexey V. Zhovtan, Carolina Casadio, Juan Escudero, Joana Kramer, Ioannis Myserlis, Efthalia Trainou, Ryo Imazawa, Mahito Sasada, Yasushi Fukazawa, Koji S. Kawabata, Makoto Uemura, Tsunefumi Mizuno, Tatsuya Nakaoka, Hiroshi Akitaya, Joseph R. Masiero, Dimitri Mawet, Georgia V. Panopoulou, Samaporn Tinyanont, Masato Kagitani, Vadim Kravtsov, Takeshi Sakanoi, Matthew Dattolo, Mark Gurwell, Garrett Keating, Ramprasad Rao, Whee Yeon Cheong, Hyeon-Woo Jeong, Sincheol Kang, Sang-Hyun Kim, Sang-Sung Lee, Emmanouil Angelakis, Alexander Kraus, Antonio Hales, Seiji Kameno, Ruediger Kneissl, Hugo Messias, Hiroshi Nagai, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Fiamma Capitanio, Simone Castellano, Chen-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Alessandro Di Marco, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Philip Kaaret, Vladimir Karas, Fabian Kislat

Faculty Publications

We present X-ray polarimetry observations from the Imaging X-ray Polarimetry Explorer (IXPE) of three low spectral peak and one intermediate spectral peak blazars, namely 3C 273, 3C 279, 3C 454.3, and S5 0716+714. For none of these objects was IXPE able to detect X-ray polarization at the 3σ level. However, we placed upper limits on the polarization degree at ∼10%–30%. The undetected polarizations favor models where the X-ray band is dominated by unpolarized photons upscattered by relativistic electrons in the jets of blazars, although hadronic models are not completely eliminated. We discuss the X-ray polarization upper limits in the context …

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Extended Cyclotron Resonant Heating Of The Turbulent Solar Wind, Trevor A. Bowen, Ivan Y. Vasko, Stuart D. Bale, Benjamin D G Chandran, Alexandros Chasapis, Thierry Dudok De Wit, Alfred Mallet, Michael Mcmanus, Romain Meyrand, Marc Pulupa, Jonathan Squire Aug 2024

Extended Cyclotron Resonant Heating Of The Turbulent Solar Wind, Trevor A. Bowen, Ivan Y. Vasko, Stuart D. Bale, Benjamin D G Chandran, Alexandros Chasapis, Thierry Dudok De Wit, Alfred Mallet, Michael Mcmanus, Romain Meyrand, Marc Pulupa, Jonathan Squire

Faculty Publications

Circularly polarized, nearly parallel propagating waves are prevalent in the solar wind at ion-kinetic scales. At these scales, the spectrum of turbulent fluctuations in the solar wind steepens, often called the transition range, before flattening at sub-ion scales. Circularly polarized waves have been proposed as a mechanism to couple electromagnetic fluctuations to ion gyromotion, enabling ion-scale dissipation that results in observed ion-scale steepening. Here we study Parker Solar Probe observations of an extended stream of fast solar wind ranging from ∼15 to 55 R ⊙. We demonstrate that, throughout the stream, transition range steepening at ion scales is associated with …

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Extended Cyclotron Resonant Heating Of The Turbulent Solar Wind, Trevor A. Bowen, Ivan Y. Vasko, Stuart D. Bale, Benjamin D G Chandran, Alexandros Chasapis, Thierry Dudok De Wit, Alfred Mallet, Michael Mcmanus, Romain Meyrand, Marc Pulupa, Jonathan Squire Aug 2024

Extended Cyclotron Resonant Heating Of The Turbulent Solar Wind, Trevor A. Bowen, Ivan Y. Vasko, Stuart D. Bale, Benjamin D G Chandran, Alexandros Chasapis, Thierry Dudok De Wit, Alfred Mallet, Michael Mcmanus, Romain Meyrand, Marc Pulupa, Jonathan Squire

Faculty Publications

Circularly polarized, nearly parallel propagating waves are prevalent in the solar wind at ion-kinetic scales. At these scales, the spectrum of turbulent fluctuations in the solar wind steepens, often called the transition range, before flattening at sub-ion scales. Circularly polarized waves have been proposed as a mechanism to couple electromagnetic fluctuations to ion gyromotion, enabling ion-scale dissipation that results in observed ion-scale steepening. Here we study Parker Solar Probe observations of an extended stream of fast solar wind ranging from ∼15 to 55 R ⊙. We demonstrate that, throughout the stream, transition range steepening at ion scales is associated with …

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Harris Holds Wide Lead Over Trump In Vermont, Many Worried About Peaceful Transfer Of Power 8/21/2024, Unh Survey Center Aug 2024

Harris Holds Wide Lead Over Trump In Vermont, Many Worried About Peaceful Transfer Of Power 8/21/2024, Unh Survey Center

All UNH Survey Center Polls

Vice President Kamala Harris holds a massive lead over former President Donald Trump in the presidential race in Vermont, fueled by an extraordinary lead among women and those with college degrees. Harris is far more personally popular than Trump and is rated considerably better on several personal attributes, particularly temperament, honesty, and integrity. About four in ten Vermonters are not confident that there will be a peaceful transfer of power following the November election. The Democratic vice presidential nominee, Minnesota Governor Tim Walz, is quite popular in Vermont and most Harris supporters are enthusiastic about his selection. President Joe Biden's …

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Harris Ahead In Maine, Cd2 Too-Close-To-Call 8/21/2024, Unh Survey Center Aug 2024

Harris Ahead In Maine, Cd2 Too-Close-To-Call 8/21/2024, Unh Survey Center

All UNH Survey Center Polls

Vice President Kamala Harris has increased her lead over former President Donald Trump in Maine and the race is tied in Maine's 2nd Congressional District. Nearly half of likely voters in the state expect Harris to win. Harris is more personally popular than Trump and is rated more highly on several personal attributes, particularly physical and mental fitness and temperament. The Democratic vice-presidential nominee, Minnesota Governor Tim Walz, is generally popular in Maine and most Harris supporters are enthusiastic about his selection. President Joe Biden's job performance remains unchanged as half of Mainers believe he has been below average or …

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Harris Maintains Lead Over Trump In Nh; Walz Inspires Enthusiasm Among Harris Supporters 8/21/2024, Unh Survey Center Aug 2024

Harris Maintains Lead Over Trump In Nh; Walz Inspires Enthusiasm Among Harris Supporters 8/21/2024, Unh Survey Center

All UNH Survey Center Polls

Vice President Kamala Harris' lead over former President Donald Trump in the presidential race in New Hampshire is unchanged since July. Nearly half of likely voters in the state expect Harris to win, compared to only a quarter who expected Biden to win before his withdrawal. Harris is more personally popular than Trump in the state and is rated more highly on several personal attributes, particularly temperament, honesty, and integrity. The Democratic vice-presidential nominee, Minnesota Governor Tim Walz, is generally popular in New Hampshire and most Harris supporters are enthusiastic about his selection. Approval of President Joe Biden's job performance …

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Physicist Hollen Honored As Moore Foundation Experimental Physics Investigator, Beth Potier Aug 2024

Physicist Hollen Honored As Moore Foundation Experimental Physics Investigator, Beth Potier

UNH Today Archive

No abstract provided.

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Accuracy Of Bathymetric Depth Change Maps Using Multi-Temporal Images And Machine Learning, Kim Lowell, Joan Hermann Aug 2024

Accuracy Of Bathymetric Depth Change Maps Using Multi-Temporal Images And Machine Learning, Kim Lowell, Joan Hermann

Center for Coastal and Ocean Mapping

Most work to date on satellite-derived bathymetry (SDB) depth change estimates water depth at individual times t1 and t2 using two separate models and then differences the model estimates. An alternative approach is explored in this study: a multi-temporal Sentinel-2 image is created by “stacking” the bands of the times t1 and t2 images, geographically coincident reference data for times t1 and t2 allow for “true” depth change to be calculated for the pixels of the multi-temporal image, and this information is used to fit a single model that estimates depth change directly rather than indirectly as in the model-differencing …

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Dominant Role Of Grazing And Snow Cover Variability On Vegetation Shifts In The Drylands Of Kazakhstan, Venkatesh Kolluru, Ranjeet John, Jiquan Chen, Preethi Konkathi, Srinivas Kolluru, Sakshi Saraf, Geoffrey M. Henebry, Jingfeng Xiao, Khushboo Jain, Maira Kussainova Aug 2024

Dominant Role Of Grazing And Snow Cover Variability On Vegetation Shifts In The Drylands Of Kazakhstan, Venkatesh Kolluru, Ranjeet John, Jiquan Chen, Preethi Konkathi, Srinivas Kolluru, Sakshi Saraf, Geoffrey M. Henebry, Jingfeng Xiao, Khushboo Jain, Maira Kussainova

Faculty Publications

Decomposing the responses of ecosystem structure and function in drylands to changes in human-environmental forcing is a pressing challenge. Though trend detection studies are extensive, these studies often fail to attribute them to potential spatiotemporal drivers. Most attribution studies use a single empirical model or a causal graph that cannot be generalized or extrapolated to larger scales or account for spatial changes and multiple independent processes. Here, we proposed and tested a multi-stage, multi-model framework that detects vegetation trends and attributes them to ten independent social-environmental system (SES) drivers in Kazakhstan (KZ). The time series segmented residual trend analysis showed …

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Dominant Role Of Grazing And Snow Cover Variability On Vegetation Shifts In The Drylands Of Kazakhstan, Venkatesh Kolluru, Ranjeet John, Jiquan Chen, Preethi Konkathi, Srinivas Kolluru, Sakshi Saraf, Geoffrey M. Henebry, Jingfeng Xiao, Khushboo Jain, Maira Kussainova Aug 2024

Dominant Role Of Grazing And Snow Cover Variability On Vegetation Shifts In The Drylands Of Kazakhstan, Venkatesh Kolluru, Ranjeet John, Jiquan Chen, Preethi Konkathi, Srinivas Kolluru, Sakshi Saraf, Geoffrey M. Henebry, Jingfeng Xiao, Khushboo Jain, Maira Kussainova

Faculty Publications

Decomposing the responses of ecosystem structure and function in drylands to changes in human-environmental forcing is a pressing challenge. Though trend detection studies are extensive, these studies often fail to attribute them to potential spatiotemporal drivers. Most attribution studies use a single empirical model or a causal graph that cannot be generalized or extrapolated to larger scales or account for spatial changes and multiple independent processes. Here, we proposed and tested a multi-stage, multi-model framework that detects vegetation trends and attributes them to ten independent social-environmental system (SES) drivers in Kazakhstan (KZ). The time series segmented residual trend analysis showed …

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Syntheses, Characterizations And Reactions Of Acene-2,3-Dicarbaldehydes, Glen Miller, Qian Liu Aug 2024

Syntheses, Characterizations And Reactions Of Acene-2,3-Dicarbaldehydes, Glen Miller, Qian Liu

Faculty Publications

Here, we report improved syntheses, detailed characterizations and reactions of a series of acene-2,3- dicarbaldehydes including tetracene-2,3-dicarbaldehyde. DFT calculations corroborate and complement the experimental results. Tetracene-2,3-dicarbaldehyde and the benchmark organic semiconductor pentacene have isoelectronic p-systems and similar HOMO–LUMO gaps. Tetracene-2,3-dicarbaldehyde is soluble in a host of organic solvents (e.g., DMF, toluene, THF, chloroform, dichloromethane) and shows excellent photooxidative resistance in solution phases exposed to light and air. Further, it is readily sublimed from the solid-state without decomposition, and can be functionalized using different chemistries. We have demonstrated the utility of acene-2,3-dicarbaldehydes as reactants in the syntheses of novel diaryl-2,3-acenedimethanols and …

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Unh Research Offers Better Measurement For Lethal Impact Of Marine Heatwaves, Robbin Ray Aug 2024

Unh Research Offers Better Measurement For Lethal Impact Of Marine Heatwaves, Robbin Ray

Media Relations

No abstract provided.

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5 Ways Wildcats Are Staying Cool This Summer, Beth Potier Aug 2024

5 Ways Wildcats Are Staying Cool This Summer, Beth Potier

UNH Today Archive

No abstract provided.

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City Of Rochester, New Hampshire Annual Report Fiscal Year July 1, 2023 Through June 30, 2024, Rochester Town Representatives Aug 2024

City Of Rochester, New Hampshire Annual Report Fiscal Year July 1, 2023 Through June 30, 2024, Rochester Town Representatives

Rochester, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

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The Plasma Pressure Contribution From Low-Energy (0.05–2 Kev) Energetic Neutral Atoms In The Heliosheath, André Galli, Peter Wurz, Nathan A. Schwadron, Eberhard Möbius, Stephen A. Fuselier, Justyna M. Sokół, Paweł Swaczyna, Maciej Bzowski, David J. Mccomas Aug 2024

The Plasma Pressure Contribution From Low-Energy (0.05–2 Kev) Energetic Neutral Atoms In The Heliosheath, André Galli, Peter Wurz, Nathan A. Schwadron, Eberhard Möbius, Stephen A. Fuselier, Justyna M. Sokół, Paweł Swaczyna, Maciej Bzowski, David J. Mccomas

Faculty Publications

Energetic neutral atoms (ENAs) from the heliosphere are a unique means to remotely image the boundary regions of our heliosphere. The Interstellar Boundary Explorer (IBEX) has been very successful in measuring these ENAs since 2008 at energies from tens of eV to 6 keV. The main question raised by one solar cycle of IBEX-Lo observations at 0.05–2 keV is the strong and ubiquitous underestimation of several model predictions compared with actually measured ENA intensities at energies between 100 and 500 eV. This study converts the observed ENA intensities into plasma pressures for different sky directions and considers the implications for …

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Response Of The First Polar-2 Prototype To Polarized Beams, Merlin Kole, Nicolas De Angelis, Ana Bacelj, Franck Cadoux, Agnieszka Elwertowska, Johannes Hulsman, Hancheng Li, Grzegorz Łubian, Tomasz Kowalski, Gilles Koziol, Agnieszka Pollo, Nicolas Produit, Dominik Rybka, Adrien Stil, Jianchao Sun, Xin Wu, Kacper Zezuliński, Shuang-Nan Zhang Aug 2024

Response Of The First Polar-2 Prototype To Polarized Beams, Merlin Kole, Nicolas De Angelis, Ana Bacelj, Franck Cadoux, Agnieszka Elwertowska, Johannes Hulsman, Hancheng Li, Grzegorz Łubian, Tomasz Kowalski, Gilles Koziol, Agnieszka Pollo, Nicolas Produit, Dominik Rybka, Adrien Stil, Jianchao Sun, Xin Wu, Kacper Zezuliński, Shuang-Nan Zhang

Faculty Publications

POLAR-2 is a dedicated gamma-ray polarimeter currently foreseen to be launched towards the China Space Station around 2027. The design of the detector is based on the legacy of its predecessor mission POLAR which was launched in 2016. POLAR-2 aims to measure the polarization of the Gamma-ray Burst prompt emission within the 30–800 keV energy range. Thanks to its high sensitivity to gamma-ray polarization, as well as its large effective area, POLAR-2 will provide the most precise measurements of this type to date. Such measurements are key to improve our understanding of the astrophysical processes responsible for Gamma-Ray Bursts. The …

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The Plasma Pressure Contribution From Low-Energy (0.05–2 Kev) Energetic Neutral Atoms In The Heliosheath, André Galli, Peter Wurz, Nathan A. Schwadron, Eberhard Möbius, Stephen A. Fuselier, Justyna M. Sokół, Paweł Swaczyna, Maciej Bzowski, David J. Mccomas Aug 2024

The Plasma Pressure Contribution From Low-Energy (0.05–2 Kev) Energetic Neutral Atoms In The Heliosheath, André Galli, Peter Wurz, Nathan A. Schwadron, Eberhard Möbius, Stephen A. Fuselier, Justyna M. Sokół, Paweł Swaczyna, Maciej Bzowski, David J. Mccomas

Faculty Publications

Energetic neutral atoms (ENAs) from the heliosphere are a unique means to remotely image the boundary regions of our heliosphere. The Interstellar Boundary Explorer (IBEX) has been very successful in measuring these ENAs since 2008 at energies from tens of eV to 6 keV. The main question raised by one solar cycle of IBEX-Lo observations at 0.05–2 keV is the strong and ubiquitous underestimation of several model predictions compared with actually measured ENA intensities at energies between 100 and 500 eV. This study converts the observed ENA intensities into plasma pressures for different sky directions and considers the implications for …

Go to article

Response Of The First Polar-2 Prototype To Polarized Beams, Merlin Kole, Nicolas De Angelis, Ana Bacelj, Franck Cadoux, Agnieszka Elwertowska, Johannes Hulsman, Hancheng Li, Grzegorz Łubian, Tomasz Kowalski, Gilles Koziol, Agnieszka Pollo, Nicolas Produit, Dominik Rybka, Adrien Stil, Jianchao Sun, Xin Wu, Kacper Zezuliński, Shuang-Nan Zhang Aug 2024

Response Of The First Polar-2 Prototype To Polarized Beams, Merlin Kole, Nicolas De Angelis, Ana Bacelj, Franck Cadoux, Agnieszka Elwertowska, Johannes Hulsman, Hancheng Li, Grzegorz Łubian, Tomasz Kowalski, Gilles Koziol, Agnieszka Pollo, Nicolas Produit, Dominik Rybka, Adrien Stil, Jianchao Sun, Xin Wu, Kacper Zezuliński, Shuang-Nan Zhang

Faculty Publications

POLAR-2 is a dedicated gamma-ray polarimeter currently foreseen to be launched towards the China Space Station around 2027. The design of the detector is based on the legacy of its predecessor mission POLAR which was launched in 2016. POLAR-2 aims to measure the polarization of the Gamma-ray Burst prompt emission within the 30–800 keV energy range. Thanks to its high sensitivity to gamma-ray polarization, as well as its large effective area, POLAR-2 will provide the most precise measurements of this type to date. Such measurements are key to improve our understanding of the astrophysical processes responsible for Gamma-Ray Bursts. The …

Go to article

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