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Articles 38461 - 38490 of 294378

Full-Text Articles in Physical Sciences and Mathematics

Analogue Model Of Rift Linkage And Inversion With Application To The Western Alps, Nicolas Dall’Asta, Yoann Denèle, Vincent Regard, Anne Frayssignes, Guilhem Hoareau, Sylvie Leroy, Thibaut Pires Sep 2023

Analogue Model Of Rift Linkage And Inversion With Application To The Western Alps, Nicolas Dall’Asta, Yoann Denèle, Vincent Regard, Anne Frayssignes, Guilhem Hoareau, Sylvie Leroy, Thibaut Pires

Department of Earth and Atmospheric Sciences: Faculty Publications

Along-strike segmentation of orogens raises questions because its causes may predate orogeny in relation to structural inheritance. Here we focus on rift/margin linkage domains and their inversion by using analogue models with image analysis to extract the 3D strain field. Extensional models document, depending on the strike-perpendicular offset and the brittle-crust thickness, three types of rift linkage modes: (1) oblique linkage with early T-fault, (2) strongly-oblique linkage with R-fault network and, (3) transfer-linkage with late Y-strike-slip fault. Analogue model of inverted rift basins is used to analyse the misunderstood tectonic evolution of transition zones in the segmented Western Alpine belt.

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Research On Low-Carbon Transition Pathways And Suggestions For Climate Cooperation Of Bri Countries, Kaiwe Zhu, Xianchun Tan, Baihe Gu, Jianping Zhang, Lingsi Kong Sep 2023

Research On Low-Carbon Transition Pathways And Suggestions For Climate Cooperation Of Bri Countries, Kaiwe Zhu, Xianchun Tan, Baihe Gu, Jianping Zhang, Lingsi Kong

Bulletin of Chinese Academy of Sciences (Chinese Version)

Climate cooperation among Belt and Road Initiative (BRI) countries holds significant practical importance for achieving low-carbon transition and sustainable development within the BRI framework. To analyze the pathway towards low-carbon transition under different representative concentration pathway (RCP) scenarios and emission quota allocation methods, the CGEM-BRI model was developed. The study also examined the potential requirements for climate finance, capacity building, and management system. Based on these findings, recommendations for climate cooperation between China and BRI countries were formulated. The study revealed that in order to limit global temperature rise for 1.5℃ in 2100, renewable energy sources should account for a …

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Key Areas For Scientific And Technological Cooperation In Ecological And Environmental Protection And Sustainable Development In The Belt And Road Initiative, Bojie Fu, Yanxu Liu, Wenwu Zhao Sep 2023

Key Areas For Scientific And Technological Cooperation In Ecological And Environmental Protection And Sustainable Development In The Belt And Road Initiative, Bojie Fu, Yanxu Liu, Wenwu Zhao

Bulletin of Chinese Academy of Sciences (Chinese Version)

Green is the foundation of the Belt and Road Initiative (BRI). This study examines the ecological and environmental risks faced by BRI and their impact on sustainable development. It identifies key research areas in ecological and environmental protection that support sustainable development, including water resource management and water-saving technologies, water environment governance and human health assurance, land degradation prevention and control technologies and demonstrations, biodiversity conservation and the utilization of biological resources, mechanisms and models for ecosystem restoration, and environmental governance for community sustainable development. It is hoped to enhancing scientific and technological cooperation in ecological and environmental governance among …

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Aware Early Head Start, Environmental Resource Management (Erm) Sep 2023

Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) - Aware Early Head Start, Environmental Resource Management (Erm)

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

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Ambient Processed Rgo/Ti3cntx Mxene Thin Film With High Oxidation Stability, Photosensitivity, And Self-Cleaning Potential, Muhammad Abiyyu Kenichi Purbayanto, Dominika Bury, Madhurya Chandel, Zhila Dehghan Shahrak, Vadym Mochalin, Anna Wójcik, Dorota Moszczyńska, Anita Wojciechowska, Anika Tabassum, Michael Naguib, Agnieszka Maria Jastrzębska Sep 2023

Ambient Processed Rgo/Ti3cntx Mxene Thin Film With High Oxidation Stability, Photosensitivity, And Self-Cleaning Potential, Muhammad Abiyyu Kenichi Purbayanto, Dominika Bury, Madhurya Chandel, Zhila Dehghan Shahrak, Vadym Mochalin, Anna Wójcik, Dorota Moszczyńska, Anita Wojciechowska, Anika Tabassum, Michael Naguib, Agnieszka Maria Jastrzębska

Chemistry Faculty Research & Creative Works

Solution-Based Processing Offers Advantages for Producing Thin Films Due to Scalability, Low Cost, Simplicity, and Benignity to the Environment. Here, We Develop Conductive and Photoactivated Self-Cleaning Reduced Graphene Oxide (RGO)/Ti3CNTx MXene Thin Films Via Spin Coating under Ambient Conditions. the Addition of a Thin RGO Layer on Top of Ti3CNTx Resulted in Up to 45-Fold Improvement in the Environmental Stability of the Film Compared to the Bare Ti3CNTx Film. the Optimized RGO/Ti3CNTx Thin Film Exhibits an Optical Transmittance of 74% in the Visible Region of the Spectrum and …

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Microplastics Distribution Within Western Arctic Seawater And Sea Ice, Alessandra D’Angelo, Nicole Trenholm, Brice Loose, Laura Glastra, Jacob Strock, Jongsun Kim Sep 2023

Microplastics Distribution Within Western Arctic Seawater And Sea Ice, Alessandra D’Angelo, Nicole Trenholm, Brice Loose, Laura Glastra, Jacob Strock, Jongsun Kim

School of Earth, Environmental, & Marine Sciences Faculty Publications

Microplastic pollution has emerged as a global environmental concern, exhibiting wide distribution within marine ecosystems, including the Arctic Ocean. Limited Arctic microplastic data exist from beached plastics, seabed sediments, floating plastics, and sea ice. However, no studies have examined microplastics in the sea ice of the Canadian Arctic Archipelago and Tallurutiup Imanga National Marine Conservation Area, and few have explored Arctic marginal seas’ water column. The majority of the microplastic data originates from the Eurasian Arctic, with limited data available from other regions of the Arctic Ocean. This study presents data from two distinct campaigns in the Canadian Arctic Archipelago …

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Draft Genome Of Methanol-Oxidizing Methylobacterium Fujisawaense Strain Lac1, Jooho Chung, Jinha Kim, John C. Blazier, Myung Hwangbo, Kung-Hui Chu Sep 2023

Draft Genome Of Methanol-Oxidizing Methylobacterium Fujisawaense Strain Lac1, Jooho Chung, Jinha Kim, John C. Blazier, Myung Hwangbo, Kung-Hui Chu

School of Earth, Environmental, & Marine Sciences Faculty Publications

We report the draft genome of Methylobacterium fujisawaense LAC1 isolated from an acidic aquifer in Indian Head, MD, USA. The genome contains 5,883,000 bp and has a GC content of 70% with 5,434 protein-encoding genes with functional assignments. This strain can grow on methanol with lanthanum, a rare earth element.

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The Rs Oph Outburst Of 2021 Monitored In X-Rays With Nicer, Marina Orio, Keith Gendreau, Morgan Giese, Gerardo Jaun M. Luna, Jozef Magdolen, Tod E. Strohmayer, Andy E. Zhang, Diego Altamirano, Andrej Dobrotka, Teruaki Enoto, Elizabeth C. Ferrara, Richard Ignace, Sebastian Heinz, Craig Markwardt, Joy S. Nichols, Michael L. Parker, Dheeraj R. Pasham, Songpeng Pei, Pragati Pradhan, Ron Remillard, James F. Steiner, Francesco Tombesi Sep 2023

The Rs Oph Outburst Of 2021 Monitored In X-Rays With Nicer, Marina Orio, Keith Gendreau, Morgan Giese, Gerardo Jaun M. Luna, Jozef Magdolen, Tod E. Strohmayer, Andy E. Zhang, Diego Altamirano, Andrej Dobrotka, Teruaki Enoto, Elizabeth C. Ferrara, Richard Ignace, Sebastian Heinz, Craig Markwardt, Joy S. Nichols, Michael L. Parker, Dheeraj R. Pasham, Songpeng Pei, Pragati Pradhan, Ron Remillard, James F. Steiner, Francesco Tombesi

Publications

The 2021 outburst of the symbiotic recurrent nova RS Oph was monitored with the Neutron Star Interior Composition Explorer Mission (NICER) in the 0.2–12 keV range from day one after the optical maximum, until day 88, producing an unprecedented, detailed view of the outburst development. The X-ray flux preceding the supersoft X-ray phase peaked almost 5 days after optical maximum and originated only in shocked ejecta for 21–25 days. The emission was thermal; in the first 5 days, only a non-collisional-ionization equilibrium model fits the spectrum, and a transition to equilibrium occurred between days 6 and 12. The ratio of …

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Systematic Investigation Of The Homology Sequences Around The Human Fusion Gene Breakpoints In Pan-Cancer - Bioinformatics Study For A Potential Link To Mmej, Jiajia Liu, Xiaobo Zhou Sep 2023

Systematic Investigation Of The Homology Sequences Around The Human Fusion Gene Breakpoints In Pan-Cancer - Bioinformatics Study For A Potential Link To Mmej, Jiajia Liu, Xiaobo Zhou

Faculty, Staff and Student Publications

Microhomology-mediated end joining (MMEJ), an error-prone DNA damage repair mechanism, frequently leads to chromosomal rearrangements due to its ability to engage in promiscuous end joining of genomic instability and also leads to increasing mutational load at the sequences flanking the breakpoints (BPs). In this study, we systematically investigated the homology sequences around the genomic breakpoint area of human fusion genes, which were formed by the chromosomal rearrangements initiated by DNA double-strand breakage. Since the RNA-seq data is the typical data set to check the fusion genes, for the known exon junction fusion breakpoints identified from RNA-seq data, we have to …

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Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) Aware Early Head Start, Environmental Resource Management (Erm) Sep 2023

Residential Metals Abatement Program Investigation Summary Report (Non-Residential Parcels – Indoor Dust) Aware Early Head Start, Environmental Resource Management (Erm)

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

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Climate Technology Demand Assessment For Participating Countries In Belt And Road Initiative And Policy Recommendations For Promoting South-South Technology Cooperation, Minpeng Chen, Qiang Liu, Meixun Gao, Fei Teng Sep 2023

Climate Technology Demand Assessment For Participating Countries In Belt And Road Initiative And Policy Recommendations For Promoting South-South Technology Cooperation, Minpeng Chen, Qiang Liu, Meixun Gao, Fei Teng

Bulletin of Chinese Academy of Sciences (Chinese Version)

Belt and Road countries and regions have increasingly recognized the urgent need for climate mitigation and adaptation in order to achieve the Paris Agreement and the Sustainable Development Goals (SDGs). Transferring and disseminating climate technologies are effective ways in which developing countries in the region can enhance their capacity to address the challenges of climate change. This study assesses the characteristics of climate change technology needed in Belt and Road countries and regions, based on the United Nations Framework Convention on Climate Change's Technology Needs Assessment (TNA) report as well as the Cooperative Patent Classification (CPC) system. It identifies and …

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Main Climate Change Characteristics And Disaster Risks Oriented Towards Carbon Neutrality Over The Belt And Road Regions, Jingyong Zhang, Jing He, Lixia Zhang, Zhencai Du, Renqiang Li, Ming Xu Sep 2023

Main Climate Change Characteristics And Disaster Risks Oriented Towards Carbon Neutrality Over The Belt And Road Regions, Jingyong Zhang, Jing He, Lixia Zhang, Zhencai Du, Renqiang Li, Ming Xu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Climate change has been widely recognized as one of most severe risks that the world faces. The recent 50 years are the warmest period in the last 2 000 years with respect to surface temperature averaged over the Belt and Road regions, which is mainly attributed to continuously increasing and accumulating of carbon emissions from human activities. Since the 1980s, over the Belt and Road regions mean climate change is characterized as surface warming at a faster rate, increased precipitation and evaporation, and accelerated sea level rise among others, and extreme weather and climate events such as hot extremes, rainstorms …

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Experiences And Enlightenment Of International Cooperation On Climate Change For Bri Partners, Jianping Zhang, Xu Zhang Sep 2023

Experiences And Enlightenment Of International Cooperation On Climate Change For Bri Partners, Jianping Zhang, Xu Zhang

Bulletin of Chinese Academy of Sciences (Chinese Version)

The Belt and Road region has different resource endowments and diverse climates. Low-carbon and sustainable economic development is the objective need for the high-quality Green Silk Road, and it is also the key to the global actions and practices on climate change. China and BRI partners have carried out in-depth cooperation on low-carbon infrastructure, cleaner energy, climate disaster warning and forecasting, climate finance, low-carbon technology, and other key development fields in a win-win solution. Further, by drawing on the valuable experiences of developed countries in international cooperation on climate, the others have explored a new path for future international cooperation …

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Scientific And Technological Innovation And Cooperation Support High-Quality Development Of The Belt And Road Initiative, Chunli Bai Sep 2023

Scientific And Technological Innovation And Cooperation Support High-Quality Development Of The Belt And Road Initiative, Chunli Bai

Bulletin of Chinese Academy of Sciences (Chinese Version)

The Belt and Road Initiative has become a popular international public goods and international cooperation platform in the past decade since it was firstly proposed in 2013. China and the Belt and Road participating countries and regions have made considerable progress in scientific and technological cooperation, including carrying out scientific and technological cooperation actions and plans, building international scientific organizations and science and education cooperation centers, providing talent training platforms, etc. Nevertheless, in the new era, the Belt and Road faces many challenges such as the unpredictable external environment, the incomplete top-level design and mechanism, the insufficient depth of scientific …

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Research On Science And Technology Cooperation Pattern Of The Belt And Road Initiative, Weidong Liu, Jing Li, Guohua Xiao, Zhouying Song, Jiansheng Qu, Yafeng Wang, Fahu Chen Sep 2023

Research On Science And Technology Cooperation Pattern Of The Belt And Road Initiative, Weidong Liu, Jing Li, Guohua Xiao, Zhouying Song, Jiansheng Qu, Yafeng Wang, Fahu Chen

Bulletin of Chinese Academy of Sciences (Chinese Version)

Science and technology cooperation has become an important driving force for the high-quality development of the Belt and Road Initiative (BRI). This study intends to explore how international science and technology cooperation can empower the highquality development of the BRI co-construction. By sorting out the practice of science and technology cooperation in boosting the development of the Belt and Road countries and regions since the raise of BRI, and analyzing the problems and challenges encountered, countermeasures and suggestions for the new era are finally proposed in this study.

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Building The Health Silk Road Within The Belt And Road Initiative From A Systematic View, Shouyang Wang, Qin Bao, Qi Zhang Sep 2023

Building The Health Silk Road Within The Belt And Road Initiative From A Systematic View, Shouyang Wang, Qin Bao, Qi Zhang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Life and health are common challenges faced by mankind, and the building of the Health Silk Road is the fundamental content of the high-quality development of the Belt and Road Initiative. There are great differences in the level of economic and social development of the countries and regions along the Belt and Road. Under the increasingly complex and severe global biosecurity situation, scientific guidance from a systematic perspective is required for comprehensively improving the medical and health conditions and life and health quality of different countries and regions. Aiming at the challenges faced by the building of the Health Silk …

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Climate Change Adaptation And Mitigation Strategies For Building A Green Silk Road, Tandong Yao, Jianping Huang, Baiqing Xu, Yanfen Wang, Xi Chen, Junguo Liu, Qingyun Duan, Guangjian Wu, Weicai Wang Sep 2023

Climate Change Adaptation And Mitigation Strategies For Building A Green Silk Road, Tandong Yao, Jianping Huang, Baiqing Xu, Yanfen Wang, Xi Chen, Junguo Liu, Qingyun Duan, Guangjian Wu, Weicai Wang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Areas along the Belt and Road face not only natural process-related challenges such as frequent extreme weather events caused by abnormal climate warming, uneven distribution of water resources, but also management-related challenges such as extensive resource management, insufficient protection of ecology and biodiversity, and underutilization of carbon sink potential. To address these challenges and ensure a sustainable future, it is necessary to strengthen scientific and technological cooperation in response to climate change along the Silk Road, and to enhance the quality of the Green Silk Road construction. Key areas of scientific and technological cooperation should focus on water-ecological collaborative management …

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International Cooperation Mechanism Of Collaborated Disaster Risk Management For Belt And Road, Shaohong Wu, Yu Lei, Wei Xu, Saini Yang, Qunli Han, Fang Lian, Shengnan Wu, Peng Cui Sep 2023

International Cooperation Mechanism Of Collaborated Disaster Risk Management For Belt And Road, Shaohong Wu, Yu Lei, Wei Xu, Saini Yang, Qunli Han, Fang Lian, Shengnan Wu, Peng Cui

Bulletin of Chinese Academy of Sciences (Chinese Version)

The Belt and Road countries and regions have complicated geological environment and controlled by monsoon climate, which is easy to cause a variety of natural disasters and lead to serious harm. The natural disasters have become an important factor hindering the green development to the Belt and Road countries and regions. At the same time, most of the Belt and Road countries and regions are developing countries and regions, with lower capacity for disaster prevention and reduction. It is difficult for science and technology as well as institutional mechanisms to meet the needs of the implementation of the Belt and …

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Ocean Negative Carbon Emissions In The Context Of Earth System Science, Nianzhi Jiao, Tingwei Luo, Jihua Liu, Quanrui Chen, Chenba Zhu Sep 2023

Ocean Negative Carbon Emissions In The Context Of Earth System Science, Nianzhi Jiao, Tingwei Luo, Jihua Liu, Quanrui Chen, Chenba Zhu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Comparing the records of geological events and the observations of the current climate, the debate on the main cause of global warming, which has lasted for more than 30 years, is now to an end. Along the global consensus, it is imperative to seek effective solutions to the mitigation of climate change for China and the countries along Belt and Road route, which are facing the unavoidable conflicts between development and protection. Based on these analyses, The study proposes that reasonable and legitimate transformative Ocean Negative Carbon Emission (ONCE) approach should be developed in the context of Earth system science …

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S&T Innovation Study For The Digital Belt And Road, Huadong Guo, Fang Chen, Yu Chen, Guozhuang Shen, Chuansheng Liu, Yunwei Tang Sep 2023

S&T Innovation Study For The Digital Belt And Road, Huadong Guo, Fang Chen, Yu Chen, Guozhuang Shen, Chuansheng Liu, Yunwei Tang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Digital technology can promote the sustainable development of countries and regions along the route of Belt and Road Initiative and help enhance interconnectivity in technology, standards, rules, and digital infrastructure. Science and technology play a crucial role in the construction of the Digital Belt and Road. However, currently, some countries and regions along the route of Belt and Road Initiative lack sufficient digital infrastructure, and there is a shortage of critical core digital technology and challenges in its promotion. It is essential to build an innovative ecosystem for the Digital Belt and Road that includes facilities, technology, mechanisms, and capabilities …

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Belt And Road Science & Technology Cooperation: Current Situation, Challenges And Development Directions, Hongyan He, Shuxian Wu, Jiayu Xin, Hui Zhao, Yanlei Wang, Dongxia Yan, Linglong Shan, Xin Wang, Yuliang Zhao Sep 2023

Belt And Road Science & Technology Cooperation: Current Situation, Challenges And Development Directions, Hongyan He, Shuxian Wu, Jiayu Xin, Hui Zhao, Yanlei Wang, Dongxia Yan, Linglong Shan, Xin Wang, Yuliang Zhao

Bulletin of Chinese Academy of Sciences (Chinese Version)

Since the Belt and Road Initiative was put forward, China has actively engaged in innovation cooperation with coconstruction countries and regions, and has made gratifying achievements in basic scientific research, technology transfer and transformation, the cooperation network and platform base construction. At present, new changes and situations in the political and economic landscape worldwide have put forward higher requirements for the construction of the Belt and Road Initiative. Therefore, high-quality joint construction of Belt and Road needs to sum up the experience and identify areas of cooperation. In this context, the study summarizes the current situation and main challenges of …

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Accelerating Construction Of New Development Pattern Of Dual Circulation By Building Belt And Road With High Quality, Xiong Ying, Zijian Shangguan, Ying Liu Sep 2023

Accelerating Construction Of New Development Pattern Of Dual Circulation By Building Belt And Road With High Quality, Xiong Ying, Zijian Shangguan, Ying Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

This paper firstly reviews the achievements of the Belt and Road Initiative (BRI) since its raise 10 years ago in terms of policy communication, facility connectivity, trade exchanges, financial integration, and people-to-people bond, and explains the significance of BRI to the new development pattern of the dual circulation. Then, combined with the actual national conditions of China's new development stage, it analyzes the opportunities and challenges of the construction of the Belt and Road in the new situation of the global economy and trade. Finally, it puts forward policy suggestions for the high-quality construction of the Belt and Road in …

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Cultivation Of Scientific And Technological Innovation Talents For The Belt And Road Initiative: China’S Advantages, Challenges And Critical Paths, Jin Qin, Shixin Tan, Yizhu Shen, Liuzhu Gong, Jianxun Chu, Liangchen Fan, Xinhe Bao Sep 2023

Cultivation Of Scientific And Technological Innovation Talents For The Belt And Road Initiative: China’S Advantages, Challenges And Critical Paths, Jin Qin, Shixin Tan, Yizhu Shen, Liuzhu Gong, Jianxun Chu, Liangchen Fan, Xinhe Bao

Bulletin of Chinese Academy of Sciences (Chinese Version)

Scientific and technological talents are critical resources to China and the Belt and Road Initiative (BRI). Although China is the most favorable destination country for overseas students in Asia, it is facing increasing global competition for talents, especially from the developed countries that have introduced policies to attract international students and scientific and technological innovation talents, China highly needs to figure out how to attract more high-quality foreign students and talents, and how to cultivate more innovation talents to serve the Belt and Road development. This study first evaluates science and education rankings of the Belt and Road countries and …

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Case Study And Recommendations On Technological Collaboration In Supporting Development Of Qinghai-Tibet Plateau Under The Belt And Road Initiative, Xiaowei Nie, Xiaoduo Pan, Zhuoying Zhang, Yang Yang, Yang Yang, Xinyu Gong Sep 2023

Case Study And Recommendations On Technological Collaboration In Supporting Development Of Qinghai-Tibet Plateau Under The Belt And Road Initiative, Xiaowei Nie, Xiaoduo Pan, Zhuoying Zhang, Yang Yang, Yang Yang, Xinyu Gong

Bulletin of Chinese Academy of Sciences (Chinese Version)

The Belt and Road Initiative has played an important role in promoting the construction of a community with a shared future for mankind and actively integrated into the global governance system over the past decade. At the same time, through scientific and technological cooperation, it has also significantly impacted domestic regional development. The Tibetan Plateau, known as the “Third Pole” of the Earth, is not only an important internationalized region but also a crucial component of the Belt and Road Initiative, offering opportunities to establish a South Asian land corridor. This study analyzes and summarizes the role of scientific and …

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Strategies And Measures Of International Climate Cooperation For The Belt And Road Regions, Yi Wang, Xianchun Tan, Jingyong Zhang, Renqiang Li, Minpeng Chen, Baihe Gu, Jianping Zhang Sep 2023

Strategies And Measures Of International Climate Cooperation For The Belt And Road Regions, Yi Wang, Xianchun Tan, Jingyong Zhang, Renqiang Li, Minpeng Chen, Baihe Gu, Jianping Zhang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Climate cooperation is conducive to promoting the Belt and Road Initiative (BRI) partner countries and regions to handle the relationship between economic development and tackling climate change, which is critical to achieving the green transformation of the regional economy. Based on the facts and projections of climate change in the BRI region, this study explored the demand gaps in technology, finance, and capacity building in the BRI region based on the impact of climate change on water resources, agriculture, and biodiversity. The study found that most countries and regions along the Belt and Road have a more urgent need for …

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Hydrogen Peroxide Disproportionation Activity Is Sensitive To Pyridine Substitutions On Manganese Catalysts Derived From 12-Membered Tetra-Aza Macrocyclic Ligands, David M. Freire, Hannah M. Johnston, Katherine J. Smith, Kristof Pota, Magy A. Mekhail, Sugam Kharel, Kayla N. Green Sep 2023

Hydrogen Peroxide Disproportionation Activity Is Sensitive To Pyridine Substitutions On Manganese Catalysts Derived From 12-Membered Tetra-Aza Macrocyclic Ligands, David M. Freire, Hannah M. Johnston, Katherine J. Smith, Kristof Pota, Magy A. Mekhail, Sugam Kharel, Kayla N. Green

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The abundance of manganese in nature and versatility to access different oxidation states have made manganese complexes attractive as catalysts for oxidation reactions in both biology and industry. Macrocyclic ligands offer the advantage of substantially controlling the reactivity of the manganese center through electronic tuning and steric constraint. Inspired by the manganese catalase enzyme, a biological catalyst for the disproportionation of H2O2 into water and O2, the work herein employs 12-membered tetra-aza macrocyclic ligands to study how the inclusion of and substitution to the pyridine ring on the macrocyclic ligand scaffold impacts the reactivity of …

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U.S. Parents' Intentions To Use Anti-Bullying Apps: Insights From A Comprehensive Model, Brittany Wheeler, Katie Baumel, Deborah Hall, Yasin Silva Sep 2023

U.S. Parents' Intentions To Use Anti-Bullying Apps: Insights From A Comprehensive Model, Brittany Wheeler, Katie Baumel, Deborah Hall, Yasin Silva

Computer Science: Faculty Publications and Other Works

Cyberbullying has become a prominent risk for youth and an increasing concern for parents. To help parents reduce their child's cyberbullying risk, anti-bullying apps (ABAs)—mobile applications for identifying and preventing instances of cyberbullying—have been developed in recent years. Given that ABAs are an emerging technology, limited research has been conducted to understand the factors predicting parents' intentions to use them. Drawing on three interdisciplinary theoretical frameworks, a sample of parents in the U.S. recruited through Amazon Mechanical Turk completed an online survey to assess parents' knowledge of, attitudes about, and intentions to use ABAs. Participants also rated the importance of …

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Molecular And Physical Composition Of Tar Balls In Wildfire Smoke: An Investigation With Complementary Ionisation Methods And 15-Tesla Ft-Icr Mass Spectrometry, Amna Ijaz, William Kew, Zezhen Cheng, Susan Mathai, Nurun Nahar Lata, Libor Kovarik, Simeon Schum, Swarup China, Lynn Mazzoleni Sep 2023

Molecular And Physical Composition Of Tar Balls In Wildfire Smoke: An Investigation With Complementary Ionisation Methods And 15-Tesla Ft-Icr Mass Spectrometry, Amna Ijaz, William Kew, Zezhen Cheng, Susan Mathai, Nurun Nahar Lata, Libor Kovarik, Simeon Schum, Swarup China, Lynn Mazzoleni

Michigan Tech Publications

Tar balls (TBs) are a major carbonaceous product of wildfires and other biomass-burning events that often exceed soot or other elemental forms of carbon in number and mass. Being a recalcitrant fraction of organic carbon, TBs are capable of long-range atmospheric transport, and thus, exert influence not only in the vicinity of wildfires but also in remote regions. Here, we characterised ambient atmospheric aerosol samples with varying TB number fractions collected downwind of Pacific Northwest wildfires using a 15-Tesla Fourier transform-ion cyclotron resonance mass spectrometer (15-T FT-ICR MS). Relative to non-TB aerosol, we found 2006 and 851 molecular formulae exclusively …

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Structured Decision-Making Framework For Managing Cyanobacterial Harmful Algal Blooms In New York State Parks, Jennifer Graham Sep 2023

Structured Decision-Making Framework For Managing Cyanobacterial Harmful Algal Blooms In New York State Parks, Jennifer Graham

Sustainability Seminar Series

Cyanobacteria increasingly are a global water-quality concern because of the potential for these organisms to develop harmful blooms that affect ecologic, economic, and public health. Cyanobacterial harmful algal blooms (CyanoHABs) can lead to a decrease in water quality and affect many of the recreational and ecological benefits of parks that include lakes. The New York State Office of Parks, Recreation and Historic Preservation (OPRHP) is a state agency within the New York State Executive Department charged with the operation of state parks and historic sites. Many New York State parks include lakes or other freshwater bodies, which can be susceptible …

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Machine Learning And Causality For Interpretable And Automated Decision Making, Maria Lentini Sep 2023

Machine Learning And Causality For Interpretable And Automated Decision Making, Maria Lentini

Theses and Dissertations

This abstract explores two key areas in decision science: automated and interpretable decision making. In the first part, we address challenges related to sparse user interaction data and high item turnover rates in recommender systems. We introduce a novel algorithm called Multi-View Interactive Collaborative Filtering (MV-ICTR) that integrates user-item ratings and contextual information, improving performance, particularly for cold-start scenarios. In the second part, we focus on Student Prescription Trees (SPTs), which are interpretable decision trees. These trees use a black box "teacher" model to predict counterfactuals based on observed covariates. We experiment with a Bayesian hierarchical binomial regression model as …

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