Digital Commons Network^™

Snow, Ice And Permafrost Landscapes As ‘Frozen Commons’: Examples From Northern Mongolia, Mariia Kuklina, Vera Kuklina, Nikolay Shiklomanov, Alexander Shiklomanov, Kelsey Nyland, Khadbaatar Sandag, Enkh Amgalan Sandag, Natalia Krasnoshtanova, Dmitrii Kobylkin, Alexander Kholodov, Andrey Petrov

Faculty Publications

Cryosphere has a global role as a biogeophysical phenomenon. It affects the livelihoods of people inhabiting permafrost areas and is affected by human activity within and outside of the cryosphere’s geographical span. ‘Frozen commons’ (FCs) are cryosphere resources and landscapes, defined by snow, ice, and permafrost, that are experienced, used, protected and managed by groups of people together. This paper highlights collaboration between herders and scientists aimed at improving the understanding of FCs in northern Mongolia, a region of rapid cryosphere transformation. The impact of climate change on Indigenous and pastoralist communities in Mongolia is profound, leading to the damage …

Neo-Gender Balancing In Saudi Arabia: Divorce Under Social Exchange Theory, Abdullah F. Alrebh, Radhi H. Al-Mabuk

Faculty Publications

This paper uses Richard Emerson’s social exchange theory to analyze the balance in the exchange relations between men and women in Saudi Arabia. The paper is comprised of four major sections: (1) Emerson’s social exchange theory; (2) Saudi women in Vision 2030; (3) Statistics on Saudi women marital status; (4) Power dependence. Emerson’s five assumptions are applied to cases of Saudi women in order to demonstrate how winds of social change are affecting not only attitudes but also actual behaviors and decisions regarding divorce. Using the Comparison Level for Alternatives model, the results of the analysis are reported, and a …

Impact Of Social Media On Family Relations In The Arab Gulf Region, Radhi H. Al-Mabuk, Abdullah F. Alrebh

Faculty Publications

Social media use especially among children and adolescents has become a topic of concern in the Gulf region especially for parents. This chapter addresses the issue of social media use and its impact on family relations, and is comprised of six parts: (1) place of social media in sociology; (2) prevalence of social media in the Gulf region with an emphasis on how much use, nature of use and motivation for use; (3) positive and detrimental consequences of social media use; (4) impact of social media use, especially problematic social media, on family relations; (5) parents’ role in guiding their …

The Influence Of Geographic Ranges, Climatic Niches And Temperature Fluctuations On Population Variability, Cleber Ten Canten, Lauren Holian, Tad Dallas

Faculty Publications

The existence of patterns in population dynamics across species geographic ranges and climatic niches is a pervasive idea in ecology. Population variability (i.e. temporal variability in population density) should hypothetically increase near range edges or niche limits because of less suitable environments in these areas, but the occurrence of such patterns remains largely unexplored. Further, fluctuations in temperature could pose demographic constraints on populations and also influence their variability. We used Breeding Bird Survey data to show that the population variability of 97 resident North American birds consistently increases towards their niche limits and in areas with more variable temperatures, …

Implementation Outcomes And Associated Constructs From The Consolidated Framework For Implementation Research Among Churches Trained Online To Implement Faith, Activity, And Nutrition In A National Implementation Study, Sara Wilcox Phd, Ruth P. Saunders Phd, Andrew T. Kaczynski Ph.D., Caroline Rudisill Ph.D., Msc, Ye Sil Kim Phd, Jasmin Parker-Brown, Kelsey R. Day

Faculty Publications

Churches hold promise for reaching populations with high rates of chronic disease, yet few faith-based large-scale implementation studies exist. The study purpose was to examine 12-month implementation outcomes and associated Consolidated Framework for Implementation Research (CFIR) constructs after converting in-person training to online for an evidence-based intervention designed to improve church organizational practices related to physical activity (PA) and healthy eating (HE). US churches recruited from 2020 to 2022 participated in eight online lessons prior to implementation. Each church’s coordinator completed an online baseline and 12-month survey assessing church practices for PA/HE components targeted in the Faith, Activity, and Nutrition …

The Role Of Civic Education On The Types And Causes Of Bullying In School, Besim Gollopeni, Ferdi Kamberi, William R. Henninger

Faculty Publications

Educational institutions have a responsibility to create a safe and peaceful environment, where the emotional and social well-being of students is promoted. In such an environment, students are encouraged to engage with pleasure in the learning process to develop their knowledge but also to interact constructively with their peers, strengthening their social skills and sense of belonging to the community. Such an environment is being challenged by the spread of the phenomenon of bullying, which creates deep concerns among students, parents, schools and the community. This study aims to investigate the types, causes and effects that lead to the occurrence …

Surface Resistivity Correlation To Nano-Defects In Laser Powder Bed Fused Molybdenum (Mo)-Silicon Carbide (Sic) Alloys, Andrew Mason, Larry W. Burggraf, Ryan A. Kemnitz, Nate Ellsworth

Faculty Publications

The integration of Silicon Carbide (SiC) nanoparticles into Laser Powder Bed Fusion (LB-PBF) Molybdenum (Mo) printing represents a significant advancement in refractory metal additive manufacturing. Our investigation examined how varying SiC nanoparticle sizes affect the microstructural and electrical properties of LB-PBF-printed molybdenum components while maintaining a 0.01 mass fraction of Mo. At an Linear Energy Densities (LED) of 1.8 J/mm, the addition of 80 nm SiC particles achieved a 46% reduction in porosity, while sheet resistance decreased by 6% at LED of 2.0 J/mm with 80 nm SiC particles. These performance improvements stem from several mechanisms: SiC particles serve as …

Enhanced Nuclear Binding Near The Proton Drip Line Opens Possible Bypass Of The 64Ge Rapid Proton Capture Process Waiting Point, Zachary Meisel, W.-J Ong, J. S. Ranhawa

Faculty Publications

We performed astrophysics model calculations with updated nuclear data to identify a possible bypass of the ⁶⁴Ge waiting point, a defining feature of the rapid proton capture (rp) process that powers type I X-ray bursts on accreting neutron stars. We find that the rp-process flow through the 64Ge bypass could be up to 36% for astrophysically relevant conditions. Our results call for new studies of ⁶⁵Se, including the nuclear mass, β-delayed proton emission branching, and nuclear structure as it pertains to the 64As(p, γ) reaction rate at X-ray burst temperatures.

The Nature Of Optical Afterglows Without Gamma-Ray Bursts: Identification Of At2023lcr And Multiwavelength Modeling, Maggie L. Li, Anna Y.Q. Ho, Geoffrey Ryan, Daniel A. Perley, Gavin P. Lamb, A. J. Nayana, Igor Andreoni, G. C. Anupama, Eric C. Bellm, Edo Berger, Joshua S. Bloom, Eric Burns, Ilaria Caiazzo, Poonam Chandra, Michael W. Coughlin, Kareem El-Badry, Matthew J. Graham, Mansi Kasliwal, Garrett K. Keating, S. R. Kulkarni, Harsh Kumar, Frank J. Masci, Richard A. Perley, Josiah Purdum, Ramprasad Rao, Antonio C. Rodriguez, Ben Rusholme, Nikhil Sarin, Jesper Sollerman, Gokul P. Srinivasaragavan, Vishwajeet Swain, Zachary Vanderbosch

Faculty Publications

In the past few years, the improved sensitivity and cadence of wide-field optical surveys have enabled the discovery of several afterglows without associated detected gamma-ray bursts (GRBs). We present the identification, observations, and multiwavelength modeling of a recent such afterglow (AT 2023lcr), and model three literature events (AT 2020blt, AT 2021any, and AT 2021lfa) in a consistent fashion. For each event, we consider the following possibilities as to why a GRB was not observed: (1) the jet was off-axis; (2) the jet had a low initial Lorentz factor; and (3) the afterglow was the result of an on-axis classical GRB …

Integrating Community Assets, Place-Based Learning, And Career Development Through Project-Based Learning In Rural Settings, Denae Kizys, Christine Lotter Ph.D., Lucas Perez, Rachel Gilreath, Dodie Limberg

Faculty Publications

Our study investigates the first year of a two-year place-based education (PBE) professional development model that focuses on career development in rural middle schools through project-based learning (PBL) units. Rural science, technology, engineering, and mathematics (STEM) educators face unique challenges, including geographic isolation, limited resources, and reduced access to professional development opportunities, which can hinder the effective integration of career-oriented learning in the classroom. We addressed these challenges by implementing professional development in which school counselors and teachers collaborate to design PBL units aligned with rural community local needs and STEM careers. Using a descriptive multiple-case study methodology to document …

Extreme Bandgap Polarization Doped Algan Layers On Bulk Aln For Pn-Diodes With An 8.5 Mv Cm−1 Breakdown Field And Forward Current Density Exceeding 20 Ka Cm−2, Tariq Jamil, Abdullah Al Mamun Mazumder, Muhammad Ali, Mafruda Rahman, Kenneth Stephenson, Grigory Simin, Asif Khan

Faculty Publications

In this paper we present a study of distribution polarization doped Al_xGa_1−xN layers and their use in quasi-vertical configuration pn-diodes which exhibited a high breakdown field of ∼8.5 MV cm⁻¹ and a large forward current density (∼23 kA cm⁻²). We also establish their potential use in UVC light emitters by studying the optical emission from a quantum well inserted at the distribution polarization doped pn-junction interface.

Hydrogen Peroxide Photoformation In Particulate Matter And Its Contribution To S(Iv) Oxidation During Winter In Fairbanks, Alaska, Michael Oluwatoyin Sunday, Laura Marie Dahler Heinlein, Junwei He, Allison Moon, Sukriti Kapur, Ting Fang, Kasey C. Edwards, Fangzhou Guo, Jack E. Dibb, James H. Flynn Iii, Becky Alexander, Manabu Shiraiwa, Cort Anastasio

Faculty Publications

The high levels of sulfate in wintertime particles in Fairbanks, Alaska, are a subject of keen research interest and regulatory concern. Recent results from the 2022 Alaska Layered Pollution And Chemical Analysis (ALPACA) field campaign indicate that roughly 40 % of wintertime sulfate in Fairbanks is secondary, with hydrogen peroxide (HOOH) the dominant oxidant. Since formation of HOOH in the gas phase should be negligible during ALPACA because of high levels of NOx, we examined whether reactions within particles could be a significant source of HOOH. To test this, we collected particulate matter (PM) samples during the ALPACA campaign, extracted …

Generative Ai For Thematic Analysis In A Maternal Health Study: Coding Semistructured Interviews Using Large Language Models, Shan Qiao, Xingyu Fang, Junbo Wang, Ran Zhang, Xiaoming Li, Yuhao Kang

Faculty Publications

Study Objectives: The coding of semistructured interview transcripts is a critical step for thematic analysis of qualitative data. However, the coding process is often labor-intensive and time-consuming. The emergence of generative artificial intelligence (GenAI) presents new opportunities to enhance the efficiency of qualitative coding. This study proposed a computational pipeline using GenAI to automatically extract themes from interview transcripts. Methods: Using transcripts from interviews conducted with maternity care providers in South Carolina, we leveraged ChatGPT for inductive coding to generate codes from interview transcripts without a predetermined coding scheme. Structured prompts were designed to instruct ChatGPT to generate and summarize …

Using T-Sne For Characterizing Glitches In Ligo Detectors, Tabata Aira Ferreira, Gabriela González

Faculty Publications

Glitches are non-Gaussian noise transients originating from environmental and instrumental sources that contaminate data from gravitational wave detectors. Some glitches can even mimic gravitational wave signals from compact object mergers, which are the primary targets of terrestrial observatories. In this study, we present a method to analyze noise transients from the Laser Interferometer Gravitational-Wave Observatory observatories using Q-transform information combined with t-distributed stochastic neighbor embedding. We implement classification techniques, examine the influence of parameters on glitch classification, and conduct a week-long daily analysis to track outlier transients over time.

Impact Of Prior Exposures On Biomarkers Of Blast During Military Tactical Training, Zhaoyu Wang, Shengnan Sun, Alis Aksar Kranfli, Jeffrey Nemes, Molly J. Sullan, Andrew J. Hoisington, Lisa A. Brenner, Miciej Skotak, Christina R. Lavalle, Yongchao Ge, Walter Carr, Fatemah Haghighi

Faculty Publications

Blast injuries and subclinical effects are of significant concern among those Service Members (SMs) participating in military operations and tactical trainings. Studies of SMs repeatedly exposed during training find concussion-like symptomology with transient decrements in neurocognitive performance, and alterations in blood biomarkers. How prior mild TBI (mTBI) history interacts with low-level blast (LLB) exposure, however, remains unexplored, which we investigate in the present study, to identify interindividual biomarker changes from LLB exposures influenced by prior history of mTBI.

Pulse Pressure, White Matter Hyperintensities, Andcognition: Mediating Effects Across The Adult Lifespan, Jade Hannan, Sarah Newman-Norlund, Natalie Busby, Sarah C. Wilson, Roger Newman-Norlund, Chris Rorden, Julius Fridriksson, Leonardo Bon, Nicholas Riccardi

Faculty Publications

Objectives: To investigate whether pulse pressure or mean arterial pressure mediates the relationship between age and white matter hyperintensity load and to examine the mediating effect of white matter hyperintensities on cognition.

Methods: Demographic information, blood pressure, current medication lists, and Montreal Cognitive Assessment scores for231 stroke- and dementia-free adults were retrospectively obtained from the Aging Brain Cohort study. Total WMH load was determined from T2-FLAIR magnetic resonance scans using the TrUE-Net deep learning tool for white matter segmentation. In separate models, we used mediation analysis to assess whether pulse pressure or MAP mediates the relationship between age and total …

Pulse Pressure, White Matter Hyperintensities, And Cognition: Mediating Effects Across The Adult Lifespan, Jade Hannan, Sarah Newman-Norlund, Natalie Busby, Sarah C. Wilson, Roger Newman-Norlund, Chris Rorden, Julius Fridriksson Ph.D., Leonardo Bonilha

Faculty Publications

Objectives: To investigate whether pulse pressure or mean arterial pressure mediates the relationship between age and white matter hyperintensity load and to examine the mediating effect of white matter hyperintensities on cognition.

Methods: Demographic information, blood pressure, current medication lists, and Montreal Cognitive Assessment scores for231 stroke- and dementia-free adults were retrospectively obtained from the Aging Brain Cohort study. Total WMH load was determined from T2-FLAIR magnetic resonance scans using the TrUE-Net deep learning tool for white matter segmentation. In separate models, we used mediation analysis to assess whether pulse pressure or MAP mediates the relationship between age and total …

Untethered Isoperimetric Robotic Truss For Lunar Applications, Mihai Stanciu, Spencer Stowell, Isaac Weaver, Adam Rose, Chris Paul, James Wade, Ashleigh Cerven, Annie O'Bryan, Brian Bodily, Logan Yang, Nathan Usevitch

Faculty Publications

We introduce a robotic system designed to function as a lightweight, modular, and reconfigurable structure on the Moon. This robust system consists of truss-like robotic triangles, each formed by a continuous inflated fabric tube routed through two robotic roller units and a connecting unit. When deflated, these triangles can be compacted to roughly the volume of the roller units, offering an advantageous stowed-to-deployed volume ratio of 1 to 6.24. Upon inflation, the roller units pinch the tubes, creating corners by reducing the bending stiffness of the tube. Once fully deployed, electric motors move the robotic roller units along the tube, …

Podcasts In Mental, Physical, Or Combined Health Interventions For Adults: Scoping Review, Elizabeth M. Dascombe, Philip J. Morgan, Ryan J. Drew, Casey P. Regan, Gabrielle Turner-Mcgrievy, Myles D. Young

Faculty Publications

Background:

The increasing prevalence of poor mental and physical health in adults is a global health concern. Given the scope of this problem, scalable and effective treatment interventions are needed. While podcasts (online digital audio files) are becoming more popular, the extent of podcast use in mental, physical, or combined health interventions has not been reviewed.

Objective:

This scoping review primarily aims to summarize the available evidence regarding the use of podcasts in health promotion interventions. A series of 5 research questions was designed to systematically review and accurately represent podcast use in current research interventions.

Methods:

We conducted a …

Review Of Tethered Unmanned Aerial Vehicles: Building Versatile And Robust Tethered Multirotor Uav System, Dario Handrick, Mattie Eckenrode, Junsoo Lee

Faculty Publications

This paper presents a comprehensive review of tethered unmanned aerial vehicles (UAVs), focusing on their challenges and potential applications across various domains. We analyze the dynamic characteristics of tethered UAV systems and address the unique challenges they present, including complex tether dynamics, impulsive forces, and entanglement risks. Additionally, we explore application-specific challenges in areas such as payload transportation and ground-connected systems. The review also examines existing tethered UAV testbed designs, highlighting their strengths and limitations in both simulation and experimental settings. We discuss advancements in multi-UAV cooperation, ground–air collaboration through tethers, and the integration of retractable tether systems. Moreover, we …

Cardiovascular Health In The Transition From Adolescence To Emerging Adulthood: A Scientific Statement From The American Heart Association, Jewel Scott Phd, Rn, Fnp-C, Anandita Agarwala, Carissa M. Baker-Smith, Matthew J. Feinstein, Karen Jakubowski, Jill Kaar, Niyati Parekh, Kershaw V. Patel, Janna Stephens

Faculty Publications

Cardiovascular disease remains a leading cause of death in the United States, with an alarming rise in the proportion of young adults experiencing cardiovascular events. Many adolescents enter adulthood with significant cardiovascular disease risk factors. This scientific statement addresses the critical need for cardiovascular health promotion during emerging adulthood, a transitional stage between the ages of 18 and 25 or 29 years of age. We discuss the significance of social determinants of health and the interplay between individual-level risk factors and developmental changes, including shifts in substance use, social connections, and emotional well-being. We conclude by outlining strategies for optimizing …

Carbonate And Nutrient Dynamics In A Mississippi River Influenced Eutrophic Estuary, Songjie He, Sean Gordon, Kanchan Maiti

Faculty Publications

There is limited information on how the nutrient and freshwater input affects water column carbonate chemistry in the estuaries along the northern Gulf of Mexico. In this study, we assess the seasonal and spatial variability in carbonate chemistry in the Barataria Basin, a eutrophic estuary adjacent to the mouth of the Mississippi River. Eleven stations were sampled along a salinity gradient during the winter (January), spring (April), summer (July), and fall (October) of 2021. Surface and bottom water samples were collected for the analyses of dissolved inorganic carbon (DIC); total alkalinity (TA); and nitrite plus nitrate (NO2 + NO3), phosphate …

Nonnative Species Richness And Dominance Reveal Differing Support For Invasion Theory At A Continental Extent, Lily M. Thompson, William K. Annis, Stephen R. Midway, Julian D. Olden, Brandon K. Peoples

Faculty Publications

Aim: Empirical tests of conceptual hypotheses describing species invasions often differ depending on the spatial scale (spatial resolution and extent of study area) at which they were conducted. Some of this disparity may arise from tradeoffs in data quality necessitating the use of different indices of community invadedness among scales. Local-scale studies typically use fine-resolution, descriptive measures of community invadedness (‘dominance’, the proportion nonnative individuals) at limited spatial extents, while macroscale studies often aggregate datasets to cover large spatial extents but use coarser spatial resolution and less descriptive indices (nonnative species richness). We investigated the consequences of using different indices …

Cationic Conjugated Polymers With Enhanced Doped-State Planarity For N-Type Organic Thermoelectrics, Jiu-Long Li, Xin-Yu Deng, Jupeng Chen, Peng-Xiang Fu, Shuang-Yan Tian, Yunfei Wang, Xiaodan Gu, Ting Lei

Faculty Publications

To date, extensive efforts have been devoted to designing new conjugated polymers with long alkyl or ethylene glycol sidechains. However, these sidechains are insulators, limiting further performance enhancement in doped conjugated polymers. Moreover, the most widely used chlorinated solvents are toxic, limiting the practical applications of many conjugated polymers. Here, we report a water/alcohol processable n-type conjugated polymer P(Py2FT), featuring side chain-free cationic backbones. P(Py2FT) exhibits a high n-type electrical conductivity of up to 28.1 S cm⁻¹ and a high thermoelectric power factor of up to 28.7 μW m⁻¹ K⁻², comparable to some conventional …

How I Learned To Stop Worrying And Love The Bot: What I Learned About Ai And What You Can Too, John Lande

Faculty Publications

Artificial intelligence (AI) tools play an increasingly prominent role in legal education, legal practice, and dispute resolution. People’s understanding of how these tools work varies widely. This article outlines a framework to improve AI literacy among dispute resolution practitioners, parties, ADR program managers, faculty, students, and scholars. It highlights emerging trends and offers practical suggestions and resources to support AI literacy and the responsible integration of AI into their work. A companion article, Getting the Most from AI Tools: A Practical Guide to Writing Effective Prompts, helps users, especially those in dispute resolution roles, learn how to write effective …

Shielding Resources For Four Common Radiopharmaceuticals Utilized For Imaging And Therapy: Tc-99m, F-18, I-131, And Lu-177, Michael Oumano, Richard Wendt, James Botti, Nathan Busse, David Hintenlang, Stephanie Leon, Kevin Little, Melissa Martin, Richard Massoth, Kenneth Matthews, Rameshwar Prasad, Sharon White, Jessica Clements

Faculty Publications

Introduction: The use of radioactive materials in the United States has been tightly regulated by the Nuclear Regulatory Commission and other entities for many decades. In 2015, however, the Joint Commission began to require hospital-based nuclear medicine departments to conduct shielding designs and evaluations for radioactive material areas, mirroring established x-ray practices. NCRP Report No. 147 guides diagnostic medical x-ray shielding, but obviously cannot be used alone for nuclear medicine applications. The rising demand for theranostic nuclear medicine shielding evaluations particularly necessitates updated focused guidance, the aim of this report. Methods: Monte Carlo simulations were conducted using GATE software to …

Enhancing Compton Telescope Imaging With Maximum A Posteriori Estimation A Modified Richardson–Lucy Algorithm For The Compton Spectrometer And Imager, H. Yoneda, T. Siegert, I. Martinez-Castellanos, S. Gallego, C. Karwin, H. Bates, S. E. Boggs, C. Y. Huang, A. Joens, S. Matsumoto, S. Mittal, E. Neights, M. Negro, U. Oberlack, K. Okuma, S. Pike, J. Roberts, F. Rogers, Y. Sheng, T. Takahashi, A. Valluvan, Y. Watanabe, D. Hartmann, C. Kierans, J. Tomsick, A. Zoglauer

Faculty Publications

We present a modified Richardson-Lucy (RL) algorithm tailored for image reconstruction in MeV gamma-ray observations, focusing on its application to the upcoming Compton Spectrometer and Imager (COSI) mission. Our method addresses key challenges in MeV gamma-ray astronomy by incorporating Bayesian priors for sparseness and smoothness while optimizing background components simultaneously. We introduce a novel sparsity term suitable for Poisson-sampled data in addition to a smoothness prior, allowing for flexible reconstruction of both point sources and extended emission. The performance of the algorithm is evaluated using simulated three-month COSI observations of gamma-ray lines of ⁴⁴Ti (1.157 MeV), ²⁶Al (1.809 …

Algebraic Description Of The Triaxially To Axially Rotational Shape Phase Transition, Yu Zhang, Yu Xin Liu, Feng Pan, J. P. Draayer

Faculty Publications

Within the framework of the interacting boson model, we propose a novel algebraic scheme to describe spin-dependent structural evolutions in triaxial nuclei. Our analysis demonstrates that a triaxially to axially rotational shape phase transition can be induced by the high-order correction which is microscopically motivated by the pairing interaction on the γ-unstable rotation. This prescription is further applied to describe the structural evolutions along the yrast sequences of Ba132 and Xe130, providing an exemplary case for demonstrating a unified explanation of both low-energy collective structures and high-spin phenomena in O(6)-like nuclei.

The Frequency Shift And Q Of Disordered Superconducting Rf Cavities, Hikaru Ueki, Mehdi Zarea, J. A. Sauls

Faculty Publications

Niobium superconducting radio-frequency (SRF) cavities for high-energy accelerator applications have been greatly improved in terms of the quality factor Q by techniques such as Nitrogen doping. However, the mechanisms leading to improvement in Q are still not fully understood. Quite recently the SRF group at Fermilab measured anomalies in the frequency shift of N-doped SRF Niobium cavities near the transition temperature. Here we report our theoretical analysis of these results based on the microscopic theory of superconductivity that incorporates anisotropy of the superconducting gap and inhomogeneous disorder in the screening region of the SRF cavities. We are able to account …

A New Transition Metal Borate, Co6(B24O39(Oh)6(H2O) 6·2.21h2O, Synthesized Via A Mild Hydrothermal Synthesis, Alevtina Maksimova, Patrick Belt, Nilah Whitfield, Mark D. Smith, Gopabandhu Panigrahi, Gregory Morrison, Hans Conrad Zur Loye

Faculty Publications

A new transition metal borate hydrate, Co₆B₂₄O₃₉(OH)₆(H₂O)₆·2.21H₂O, was synthesized via a mild hydrothermal method using boric acid as the melt. The compound crystallizes in the trigonal space group P 3‾ with lattice parameters a = b = 13.17840(10) Å, c = 12.3287(2) Å, and a unit cell volume of 1854.27(4) ų (Z = 2). This borate hydrate crystallizes in a new structure type comprised of layers containing [BO3] trigonal planar units and [BO4] tetrahedra that are linked by CoO6 and Co(OH)2(H2O)4 octahedra via corner-sharing. The …