bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cation Bimetallic MOF Anchored Carbon Fiber for Highly Efficient Microwave Absorption
Authors: Zhang Feng , Li Nan , Shi Jun‐Feng , Wang Yue‐Yi , Yan Ding‐Xiang , Li Zhong‐Ming 
Published: March 2024

AbstractCarbon fiber (CF) is a potential microwave absorption (MA) material due to the strong dielectric loss. Nevertheless, owing to the high conductivity, poor impedance matching of carbon‐based materials results in limited MA performance. How to solve this problem and achieve excellent MA performance remains a principal challenge. Herein, taking full advantage of CF and excellent impedance matching of bimetallic metal–organic frameworks (MOF) derivatives layer, an excellent microwave absorber based on micron‐scale 1D CF and NiCoMOF (CF@NiCoMOF‐800) is developed. After adjusting the oxygen vacancies of the bimetallic MOF, the resultant microwave absorber presented excellent MA properties including the minimum reflection loss (RLmin) of −80.63 dB and wide effective absorption bandwidth (EAB) of 8.01 GHz when its mass percent is only 5 wt.% and the thickness is 2.59 mm. Simultaneously, the mechanical properties of the epoxy resin (EP)‐based coating with this microwave absorber are effectively improved. The hardness (H), elastic modulus (E), bending strength, and compressive strength of CF@NiCoMOF‐800/EP coating are 334 MPa, 5.56 GPa, 82.2 MPa, and 135.8 MPa, which is 38%, 15%, 106% and 53% higher than EP coating. This work provides a promising solution for carbon materials achieving excellent MA properties and mechanical properties.
Ultralow‐Friction at Cryogenic Temperature Induced by Hydrogen Correlated Quantum Effect
Authors: Chen Weiqi , Wang Kang , Miao Xinran , Zhang Jie , Song Aisheng , Chen Xinchun , Luo Jianbin , Ma Tianbao 
Published: March 2024

AbstractTemperature is one of the governing factors affecting friction of solids. Undesired high friction state has been generally reported at cryogenic temperatures due to the prohibition of thermally activated processes, following conventional Arrhenius equation. This has brought huge difficulties to lubrication at extremely low temperatures in industry. Here, the study uncovers a hydrogen‐correlated sub‐Arrhenius friction behavior in hydrogenated amorphous carbon (a‐C:H) film at cryogenic temperatures, and a stable ultralow‐friction over a wide temperature range (103–348 K) is achieved. This is attributed to hydrogen‐transfer‐induced mild structural ordering transformation, confirmed by machine‐learning‐based molecular dynamics simulations. The anomalous sub‐Arrhenius temperature dependence of structural ordering transformation rate is well‐described by a quantum mechanical tunneling (QMT) modified Arrhenius model, which is correlated with quantum delocalization of hydrogen in tribochemical reactions. This work reveals a hydrogen‐correlated friction mechanism overcoming the Arrhenius temperature dependence and provides a new pathway for achieving ultralow friction under cryogenic conditions.
Construction of Cobalt Porphyrin‐Modified Cu2O Nanowire Array as a Tandem Electrocatalyst for Enhanced CO2 Reduction to C2 Products
Authors: Min Shihao , Xu Xiao , He Jiaxin , Sun Miao , Lin Wenlie , Kang Longtian 
Published: March 2024

AbstractHere, the molecule‐modified Cu‐based array is first constructed as the self‐supporting tandem catalyst for electrocatalytic CO2 reduction reaction (CO2RR) to C2 products. The modification of cuprous oxide nanowire array on copper mesh (Cu2O@CM) with cobalt(II) tetraphenylporphyrin (CoTPP) molecules is achieved via a simple liquid phase method. The systematical characterizations confirm that the formation of axial coordinated Co‐O‐Cu bond between Cu2O and CoTPP can significantly promote the dispersion of CoTPP molecules on Cu2O and the electrical properties of CoTPP‐Cu2O@CM heterojunction array. Consequently, as compared to Cu2O@CM array, the optimized CoTPP‐Cu2O@CM sample as electrocatalyst can realize the 2.08‐fold C2 Faraday efficiency (73.2% vs 35.2%) and the 2.54‐fold current density (‒52.9 vs ‒20.8 mA cm–2) at ‒1.1 V versus RHE in an H‐cell. The comprehensive performance is superior to most of the reported Cu‐based materials in the H‐cell. Further study reveals that the CoTPP adsorption on Cu2O can restrain the hydrogen evolution reaction, improve the coverage of *CO intermediate, and maintain the existence of Cu(I) at low potential.
Efficient Tin–Lead Perovskite Solar Cells with a Ultrawide Usage Windows of Precursor Solution Opened by SnF2
Authors: Wan Xiaoyun , Xu Cunyun , Wang Hao , Jiang Zezhuan , Li Fuling , Xu Gaobo , Dai Zhongjun , He Xiaofeng , Song Qunliang 
Published: March 2024

AbstractHigh quality tin–lead perovskite solar cells (Sn─Pb PSCs) can be fabricated via simple solution processing methods. However, the instability of precursor solutions and their narrow usage windows still pose challenges in manufacturing efficient and reproducible Sn─Pb PSCs, hindering the commercialization of PSCs. Fluorine tin (SnF2) is widely used as an antioxidant to improve the crystallinity of perovskite. In this study, another role of SnF2 as a stabilizer is found to restrain the deprotonation of methylammonium iodide (MAI) in the precursor solution, which improves their stability and expands their usage windows. Due to the inhibition of SnF2 on oxidation and deprotonation, stable large‐sized colloidal clusters form gradually in perovskite precursor solution during aging, leading to uniform nucleation/crystallization during film growth, significantly reducing the roughness and defect density in the films. Because of the competitive deprotonation and oxidation process of Sn2+, the benefit of larger cluster maximizes after about ten days storage of precursor solution. The champion efficiency of Sn─Pb PSCs prepared with 10 days aged precursor solution is 22.00%. High performance of devices fabricated with precursor solution stored for even ≈40 days discloses the wide usage windows of precursor solution with SnF2 additive.
Smart emulsion system driven by light‐triggered ionic liquid molecules and its application in eco‐friendly water‐saving dyeing
Authors: Gao Aiqin , Liang Jiahui , Jing Mingxiao , Song Xiyu , Hou Aiqin , Xie Kongliang 
Published: March 2024

AbstractThe smart emulsification and demulsification system with the light response is a useful tool in various industries, including green chemistry, catalytic reaction, pharmaceuticals, and environmental remediation. Herein, an ionic liquid crystal compound with a light triggered switch based on the azobenzene group [(4‐{3‐methyl‐1‐[3‐(8‐octyloxyoctyl)oxy‐4‐oxobutanoyl]imidazo‐lium‐1‐yl}octyl)oxy] ‐N‐(4‐methylphenyl)benzene‐1,2‐diazene bromide (MOIAzo), was designed and synthesized, which could cause reversible transition between emulsification and demulsification through the light trigger. The ionic liquid has an efficient photoinduced liquefaction process, which dramatically lowers the melting point of ionic liquids from 79 to 9.2 oC. This significantly broadens the liquid state temperature of the ionic liquid crystal. The ionic liquid crystal MOIAzo exhibits both photoinduced and thermally induced nematic liquid crystal properties. The smart emulsion system was effectively employed in an eco‐friendly water‐saving dyeing process of cationic dyes for cationic dyeable polyester (CDP) fabrics, which used only half the amount of water compared with the conventional water bath dyeing method. After dyeing, the oil and water phases can be efficiently separated through the light irradiation, and the oil phase can be reused for the subsequent dyeing process. This novel smart emulsion dyeing method greatly reduces the water consumption and wastewater discharge. MOIAzo as a light‐triggered ionic liquid molecule opens up new dimensions in green chemistry.
The Effect of Natural Polysaccharides in Treatment of Diabetic Nephropathy: A Review
Authors: Yang Maohui , Chen Ruihai , Zhou Xin , Chen Huaguo 
Published: March 2024

AbstractDiabetic nephropathy is a serious metabolic disease that is usually caused by diabetes mellitus and ends in chronic kidney disease and renal failure. Many drugs used to treat diabetic nephropathy have limitations and side effects. There is an urgent need to find safe and effective new drugs for the treatment of diabetic nephropathy. The polysaccharides from natural sources, including plants, fungi, and algae, have good protective effects on diabetic nephropathy without side effects. In this paper, the natural sources, chemical composition, and structural characteristics of polysaccharides are reviewed. In addition, the study summarizes the different mechanisms that polysaccharides improve diabetic nephropathy, such as antioxidative stress, regulation of inflammation, inhibition of apoptosis, and renal fibrosis. This review provides theoretical support for the protective effect of polysaccharides and reveals potential therapeutic methods for diabetic nephropathy.
Micro and Nanoporous Membrane Platforms for Carbon Neutrality: Membrane Gas Separation Prospects
Authors: Hussain Arshad , Gul Hajera , Raza Waseem , Qadir Salman , Rehan Muhammad , Raza Nadeem , Helal Aasif , Shaikh M. Nasiruzzaman , Aziz Md. Abdul 
Published: March 2024

AbstractRecently, carbon neutrality has been promoted as a potentially practical solution to global CO2 emissions and increasing energy‐consumption challenges. Many attempts have been made to remove CO2 from the environment to address climate change and rising sea levels owing to anthropogenic CO2 emissions. Herein, membrane technology is proposed as a suitable solution for carbon neutrality. This review aims to comprehensively evaluate the currently available scientific research on membranes for carbon capture, focusing on innovative microporous material membranes used for CO2 separation and considering their material, chemical, and physical characteristics and permeability factors. Membranes from such materials comprise metal‐organic frameworks, zeolites, silica, porous organic frameworks, and microporous polymers. The critical obstacles related to membrane design, growth, and CO2 capture and usage processes are summarized to establish novel membranes and strategies and accelerate their scaleup.
A systematic review on detection and adaptation of concept drift in streaming data using machine learning techniques
Authors: Arora Shruti , Rani Rinkle , Saxena Nitin 
Published: March 2024

AbstractLast decade demonstrate the massive growth in organizational data which keeps on increasing multi‐fold as millions of records get updated every second. Handling such vast and continuous data is challenging which further opens up many research areas. The continuously flowing data from various sources and in real‐time is termed as streaming data. While deriving valuable statistics from data streams, the variation that occurs in data distribution is called concept drift. These drifts play a significant role in a variety of disciplines, including data mining, machine learning, ubiquitous knowledge discovery, quantitative decision theory, and so forth. As a result, a substantial amount of research is carried out for studying methodologies and approaches for dealing with drifts. However, the available material is scattered and lacks guidelines for selecting an effective technique for a particular application. The primary novel objective of this survey is to present an understanding of concept drift challenges and allied studies. Further, it assists researchers from diverse domains to accommodate detection and adaptation algorithms for concept drifts in their applications. Overall, this study aims to contribute to deeper insights into the classification of various types of drifts and methods for detection and adaptation along with their key features and limitations. Furthermore, this study also highlights performance metrics used to evaluate the concept drift detection methods for streaming data. This paper presents the future research scope by highlighting gaps in the existing literature for the development of techniques to handle concept drifts.This article is categorized under:
Algorithmic Development > Ensemble Methods
Application Areas > Data Mining Software Tools
Fundamental Concepts of Data and Knowledge > Big Data Mining
Association of social determinants of health‐related diagnosis codes with postoperative outcomes
Authors: Sullivan Gwyneth A. , Krishnan Vaishnavi , Silver Casey , Smith Charesa , Raval Mehul V. , Gulack Brian C. , Shah Ami N. 
Published: March 2024

AbstractBackgroundThe association of an individual's social determinants of health‐related problems with surgical outcomes has not been well‐characterized. The objective of this study was to determine whether documentation of social determinants of a health‐related diagnosis code (Z code) is associated with postoperative outcomes.MethodsThis retrospective cohort study included surgical cases from a single institution's national surgical quality improvement program (NSQIP) clinical registry from October 2015 to December 2021. The primary predictor of interest was documentation of a Z code for social determinants of health‐related problems. The primary outcome was 30‐day postoperative morbidity. Secondary outcomes included postoperative length of stay, disposition, and 30‐day postoperative mortality, reoperation, and readmission. Multivariable regression models were fit to evaluate the association between the documentation of a Z code and outcomes.ResultsOf 10,739 surgical cases, 348 patients (3.2%) had a documented social determinants of health‐related Z code. In multivariable analysis, documentation of a Z code was associated with increased odds of morbidity (20.7% vs. 9.9%; adjusted odds ratio [aOR], 1.88; 95% confidence interval [CI], 1.39–2.53), length of stay (median, 3 vs. 1 day; incidence rate ratio, 1.49; 95% CI, 1.33–1.67), odds of disposition to a location other than home (11.3% vs. 3.9%; aOR, 2.86; 95% CI, 1.89–4.33), and odds of readmission (15.3% vs. 6.1%; aOR, 1.99; 95% CI, 1.45–2.73).ConclusionsSocial determinants of health‐related problems evaluated using Z codes were associated with worse postoperative outcomes. Improved documentation of social determinants of health‐related problems among surgical patients may facilitate improved risk stratification, perioperative planning, and clinical outcomes.
Assessing the Affinity Spectrum of the Antigen-Specific B Cell Repertoire via ImmunoSpot®
Authors: Becza Noémi , Liu Zhigang , Chepke Jack , Gao Xing-Huang , Lehmann Paul V. , Kirchenbaum Greg A. 
Published: March 2024

AbstractThe affinity distribution of the antigen-specific memory B cell (Bmem) repertoire in the body is a critical variable that defines an individual’s ability to rapidly generate high-affinity protective antibody specificities. Detailed measurement of antibody affinity so far has largely been confined to studies of monoclonal antibodies (mAbs) and are laborious since each individual mAb needs to be evaluated in isolation. Here, we introduce two variants of the B cell ImmunoSpot® assay that are suitable for simultaneously assessing the affinity distribution of hundreds of individual B cells within a test sample at single-cell resolution using relatively little labor and with high-throughput capacity. First, we experimentally validated that both ImmunoSpot® assay variants are suitable for establishing functional affinity hierarchies using B cell hybridoma lines as model antibody-secreting cells (ASC), each producing mAb with known affinity for a defined antigen. We then leveraged both ImmunoSpot® variants for characterizing the affinity distribution of SARS-CoV-2 Spike-specific ASC in PBMC following COVID-19 mRNA vaccination. Such ImmunoSpot® assays promise to offer tremendous value for future B cell immune monitoring efforts, owing to their ease of implementation, applicability to essentially any antigenic system, economy of PBMC utilization, high-throughput capacity, and suitability for regulated testing.
Prospects for an Enduring Agriculture in the Rustbelt: A Tale of Two Cities
Authors: Pothukuchi Kameshwari 
Published: March 2024

AbstractDetroit and Cleveland both have a vibrant agriculture that is supported by municipal policies and philanthropic resources; both also have abundant vacant land in public ownership. Despite these shared traits, the two cities differ in important ways in the ways in which agriculture is organized—whether it takes the form of community gardens managed by neighborhood groups or larger farms run by nonprofits or market operations—and raises questions about why this is the case and if these differences have implications for agriculture’s long term prospects. The chapter discusses specific governance arrangements in recent history in each city, approaches to vacant land and land use, and the relationships between growers and neighborhood and public institutions, and traces their implications for agriculture’s organization, purposes, and long term prospects there. It also outlines possible lessons from each city to the other.
Barriers in Community-Led Initiatives: A Case Study of Urban Agriculture Policy in Denver, Colorado
Authors: Gosch Kelsey , Sirwatka Avery , Cidlowski Laine 
Published: March 2024

AbstractBuilding on Denver, Colorado’s long history of community-led food systems work, the local government has accelerated food-focused policies in the past decade. Such efforts culminated in Denver Food Vision, the first long-term plan about food. One idea championed in the plan was to dedicate 100 acres of land, an area equivalent in size to 25 city blocks, to food production by 2030. The initiative took shape in the Denver Sustainable Food Policy Council’s (SFPC) City Food, City Land policy advisory. Despite the input received by the SFPC, one basic concept had been overlooked: there was simply not enough vacant land within Denver (much less appropriate for farming/gardening) to meet the hundred acres goal, city-owned or otherwise. While this policy was never adopted, there are important lessons to be learned about (i) the process of policy ideation to adoption and implementation, (ii) the intersection of land ownership and structural racism in institutions, (iii) equitable representation within decision-making, and (iv) effective government-community collaboration.
Integrating Equity as a Central Theme in Urban Agriculture: The Case of the City of Seattle, Washington
Authors: Hodgson Kimberley 
Published: March 2024

AbstractLocal food is not a new topic in Seattle and surrounding region. Nestled in an agriculturally rich region, Seattle has a long and robust history of backyard and community gardening. A strong network of grassroots and community-based organizations work on food system issues. Many of these organizations have been actively addressing issues such as community gardening, food production, and food security since the early 1970s, long before the city government began to take an interest in the Seattle food system. The Seattle city government established the P-Patch Community Gardening Program in 1973, and the Seattle-King County department of public health has been actively engaged in nutrition issues for decades. However, it was not until the early 2000s, that the city government began engaging in systems change. The Seattle city government supports a number of urban agriculture and food systems related issues through public planning, policy and funding decisions. This chapter explores the various geographic, social, agricultural and governmental contexts at play and provides a critical examination of the city government’s response to urban agriculture. The chapter describes the city government’s impetus for addressing urban agriculture through public policy and an overview of the various opportunities and challenges it has faced along the way in addressing larger societal issues such as racial and social justice through urban agriculture. The author uses a critical lens to examine key policies such as the urban agriculture zoning regulations and the Local Food Action Plan, and key projects, such as the Rainier Beach Urban Farm & Wetlands Project, to better understand the impacts of urban agriculture policies on social, health and racial equity in Seattle.
Cultivating an Equitable, Just, and Compassionate Food Systems Pedagogy
Authors: Caton Campbell Marcia , Judelsohn Alexandra 
Published: March 2024

AbstractEarly food systems planning pedagogy was offered through studio or special topics course formats. This section of the book reflects upon those pedagogical origins and traces how academics mapped the way they taught about the food system onto the traditional methods and processes that planning students learn. Two of the chapters, however, chart a bolder way forward for food systems planning pedagogy that revolves around equitable community engagement and racial justice. This new justice-oriented, equitable engagement approach requires planning pedagogy to confront the thornier aspects of planning for the food system, by explicitly recognizing the power dynamics, systems of oppression, and injustices that planning has created and perpetuated.
Revisiting Food for Growth: Lessons from a Food Systems Studio
Authors: Judelsohn Alexandra , Kelly Sylvia 
Published: March 2024

AbstractOver the past two decades, food has become a routine topic explored in the field of planning, with planning courses more regularly incorporating food systems planning. Planning studios, a cornerstone of planning education, provide students with an opportunity to blend the theory and methods they learn in their classes, applied to a real-world problem. In 2003 a studio was held at the University at Buffalo, resulting in the report Food for Growth: A Community Food System Plan for Buffalo’s West Side. Through interviews with students, community partners, and faculty, the chapter explores a series of questions: (1) How, and when, does a (food systems) studio course experience influence students, community, and faculty pathways? (2) How, and when do questions of ethics/equity drive or surface in the studio course experience? (3) What are the limitations and challenges of teaching a community-engaged food systems planning studio? The chapter offers a retrospective examination of the long-term possibilities and challenges of teaching a community-engaged food systems planning studio.
Healing the Racial Divide in Urban Agriculture
Authors: Riordan Molly , Rangarajan Anusuya 
Published: March 2024

AbstractThe promise of urban agriculture (UA) is in its potential to transform the communities around it. But who is able to farm in urban spaces and the intended goals of urban farms determines the extent to which that transformation exploits or confronts systemic and institutional racism. Based on a 2019 report, the authors consider the racial divide between “commercial” and “community” urban farms, including the racist policies and practices that make UA both possible and necessary. By reframing the value of UA, city planners and urban policy makers have an opportunity to promote a racially just food system. The chapter concludes with recommended strategies to support the transformational potential of UA.
The Food System: A Stranger to the Planning Field
Authors: Pothukuchi Kameshwari , Kaufman Jerome L. 
Published: March 2024

AbstractPlanning lays claim to being comprehensive, future-oriented, and public-interest driven, and of wanting to enhance the livability of communities. It is concerned with community systems—such as land use, housing, transportation, the environment, and the economy—and their interconnections. The food system, however, is notable by its absence from most planning practice, research, and education. We present evidence for the limited presence of the food system in planning’s list of concerns by scanning leading journals, texts, and classic writings, and by reporting on a survey of 22 U.S. city planning agencies. We analyze this low level of attention and discuss reasons and ideas for planning involvement to strengthen community food systems.