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Design of artificial metalloenzymes for the reduction of nicotinamide cofactors.

J Inorg Biochem 2021 Apr 2;220:111446. Epub 2021 Apr 2.

Sustainable Process Technologies, Faculty of Engineering, University of Nottingham, Nottingham, United Kingdom. Electronic address:

Artificial metalloenzymes result from the insertion of a catalytically active metal complex into a biological scaffold, generally a protein devoid of other catalytic functionalities. As such, their design requires efforts to engineer substrate binding, in addition to accommodating the artificial catalyst. Here we constructed and characterised artificial metalloenzymes using alcohol dehydrogenase as starting point, an enzyme which has both a cofactor and a substrate binding pocket. Read More

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Nursing applicants' reasoning skills and factors related to them: A cross-sectional study.

Nurse Educ Today 2021 Apr 9;101:104890. Epub 2021 Apr 9.

Department of Nursing Science, Hospital District of Satakunta, 20014 University of Turku, Finland. Electronic address:

Background: The assessment of reasoning skills is recommended in undergraduate nursing student selection. Reasoning skills are crucial for sound decision-making, improving patient safety and are necessary from the very beginning of studies. Nursing applicants' reasoning skills based on the reasoning process have not been previously measured. Read More

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Oxygen vacancy induced peroxymonosulfate activation by Mg-doped FeO composites for advanced oxidation of organic pollutants.

Chemosphere 2021 Apr 3;279:130482. Epub 2021 Apr 3.

Environmental Process Modelling Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 CleanTech Loop, 637141, Singapore; School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore. Electronic address:

Oxygen vacancy engineering has emerged as an effective approach to improve the performance of catalysts for peroxymonosulfate (PMS) activation. Herein, we report a facile precipitation method followed by calcination to synthesize cost-effective and environmentally friendly magnesium-doped hematite (Mg/FeO) composites. Multiple characterization results reveal that the incorporation of Mg can significantly increase the oxygen vacancies and specific surface area of 5%Mg/FeO, leading to a significantly enhanced performance in degrading Rhodamine B (RhB) through PMS activation. Read More

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Seeking sustainable development policies at the municipal level based on the triad of city, economy and environment: evidence from Hunan province, China.

J Environ Manage 2021 Apr 15;290:112554. Epub 2021 Apr 15.

State Key Laboratory of Remote Sensing Science, Jointly Sponsored by Beijing Normal University and Institute of Remote Sensing and Digital Earth of Chinese Academy of Sciences, Beijing, 100875, China; Beijing Engineering Research Center for Global Land Remote Sensing Products, Institute of Remote Sensing Science and Engineering, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China.

Keeping urbanization, economy and eco-environment in harmony is a core issue for attaining Sustainable Development Goals (SDGs) in any complex geographical regions. Previous studies mainly focused on seeking the balance between urban expansion levels, eco-environment quality and socioeconomic degree. But the challenges still exist in solving the negative influence of urban expansion that affects eco-environmental and economic development. Read More

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Hotpots and trends of covalent organic frameworks (COFs) in the environmental and energy field: Bibliometric analysis.

Sci Total Environ 2021 Mar 31;783:146838. Epub 2021 Mar 31.

Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.

Covalent organic frameworks (COFs) have attracted extensive attention due to their low density, adjustable structure, functionalization, and good stability. This paper systematically and comprehensively describes to qualitatively and quantitatively the progress, trends, and hotspots of COFs in the environmental and energy fields from the perspective of bibliometrics. Herein, based on the Web of Science database, a total of 2589 articles from 2005 to October 6, 2020, were collected. Read More

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Soil properties mediate ecosystem intrinsic water use efficiency and stomatal conductance via taxonomic diversity and leaf economic spectrum.

Sci Total Environ 2021 Apr 14;783:146968. Epub 2021 Apr 14.

Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100190, China.

The interactions between plants and soils lead to complex feedbacks that regulate intrinsic water use efficiency (iWUE) and stomatal conductance (gs) at ecosystem level and reflect water constraints on plant productivity. However, the relationships among soil properties, biodiversity, and leaf functional traits contributing to the variability in ecosystem iWUE and gs remain largely unknown. To elucidate these relationships, we used principal component analysis to reduce soil properties to a fertility spectrum and a limiting-resource spectrum across grassland, and early-, mid- and late-successional forests in a karst catchment. Read More

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Green toxicology approach involving polylactic acid biomicroplastics and neotropical tadpoles: (Eco)toxicological safety or environmental hazard?

Sci Total Environ 2021 Apr 9;783:146994. Epub 2021 Apr 9.

Post-Graduate Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Biodiversity and Biotechnology, Federal University of Goiás, Goiânia, Brazil.

Different and alternative renewable-source materials, commonly called bioplastics, have been proposed due to the high production and consumption of petroleum-derived plastics and to their high toxicity in the biota. However, their toxicological safety has not yet been assessed in a comprehensive way; therefore, their effects on several animal groups remain completely unknown. Thus, we aimed at testing the following hypothesis: the exposure of Physalaemus cuvieri tadpoles to polylaic acid biomicroplastic (PLA BioMP) at environmentally relevant concentrations (760 and 15,020 μg/L) induces physiological changes in them. Read More

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An integrated assessment methodology for management of potentially contaminated sites based on public data.

Sci Total Environ 2021 Apr 6;783:146913. Epub 2021 Apr 6.

Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China. Electronic address:

Ranking assessment of potentially contaminated sites (PCS) provides a great quantity of information (namely the risk screening list) that is usually examined by environmental managers, and therefore reduces the cost of risk management in terms of site investigation. Here we propose an integrated assessment methodology to establish a risk screening list of PCS in China using the Choquet integral correlation coefficient (ICC), which takes the uncertainty and interaction of PCS attributes into explicit account. The proposed method globally considers the importance and ordered positions of PCS attributes while reflecting their overall ranking. Read More

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Responses of phytoplankton community structure and association to variability in environmental drivers in a tropical coastal lagoon.

Sci Total Environ 2021 Apr 1;783:146873. Epub 2021 Apr 1.

Wetland Research and Training Centre, Chilika Development Authority, Balugaon 752030, Odisha, India. Electronic address:

Spatial and seasonal heterogeneity in phytoplankton communities are governed by many biotic and abiotic drivers. However, the identification of long-term spatial and temporal trends in abiotic drivers, and their interdependencies with the phytoplankton communities' structure is understudied in tropical brackish coastal lagoons. We examined phytoplankton communities' spatiotemporal dynamics from a 5-year dataset (n = 780) collected from 13 sampling stations in Chilika Lagoon, India, where the salinity gradient defined the spatial patterns in environmental variables. Read More

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Improving nutrients removal and energy recovery from wastes using hydrochar.

Sci Total Environ 2021 Apr 9;783:146980. Epub 2021 Apr 9.

Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia. Electronic address:

Hydrothermal carbonization (HTC) is an eco-friendly, flexible and efficient way to valorise wet solid wastes, producing a carbon-rich material named as hydrochar. Considerable efforts have been devoted to studying the feasibility of using hydrochar in waste management to achieve the goal of circular economy. However, a comprehensive evaluation of the impacts of hydrochar on energy recovery from anaerobic digestion (AD), nutrient reclamation, and wastewater treatment is currently lacking. Read More

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Effective treatment of hospital wastewater with high-concentration diclofenac and ibuprofen using a promising technology based on degradation reaction catalyzed by Fe under microwave irradiation.

Sci Total Environ 2021 Apr 9;783:146991. Epub 2021 Apr 9.

Graduate Program in Chemistry, Federal University of Santa Maria, 97105-900 Santa Maria, Brazil; Graduate Program in Chemical Engineering, Federal University of Santa Maria, 97105-900, Brazil. Electronic address:

Real hospital wastewater was effectively treated by a promising technology based on degradation reaction catalyzed by Fe under microwave irradiation in this work. Fe powders were synthesized and characterized by different techniques, resulting in a single-phase sample with spherical particles. Optimum experimental conditions were determined by a central composite rotatable design combined with a response surface methodology, resulting in 96. Read More

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Modeling the effects of temperature on the migration and transformation of nitrate during riverbank filtration using HYDRUS-2D.

Sci Total Environ 2021 Mar 30;783:146656. Epub 2021 Mar 30.

School of Water Conservancy and Environment, University of Jinan, Shandong 250022, PR China.

Riverbank filtration is a natural aquifer-based process. The nitrogen dynamics in a riverbank filtration system are affected by many factors, including temperature, water quality, and travel time, which cannot be quantified easily. In this study, a field experiment was conducted to investigate nitrogen transport during riverbank filtration. Read More

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An AIS-based emission inventory and the impact on air quality in Tianjin port based on localized emission factors.

Sci Total Environ 2021 Apr 6;783:146869. Epub 2021 Apr 6.

Tianjin Key Laboratory of Urban Transport Emission Research & State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China. Electronic address:

Ship pollution has become a hot global issue. This study established a basic information database of Tianjin Port ship emissions and used it to screen representative ship types and perform real-world ship measurements by a portable emission measurement system (PEMS), which generated localized emission factors. The results show that the localized emission factors are significantly higher than those recommended in recommended in Chinese guidelines, which will lead to lower calculation results of the previous inventory. Read More

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Global environmental inequality: Evidence from embodied land and virtual water trade.

Sci Total Environ 2021 Apr 14;783:146992. Epub 2021 Apr 14.

Center for Energy and Environmental Policy Research, Beijing Institute of Technology, Beijing 100081, China; School of Management and Economics, Beijing Institute of Technology, Beijing 100081, China.

The trade-off between economic growth and environmental conservation is the focus of national environmental management. Previous studies have proved that global trade can bring both economic benefits and environmental costs to all countries. However, for different countries, it is not clear whether the environmental costs match their economic benefits in global trade. Read More

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Efficient recovery of phosphorus and sulfur from Anaerobic Membrane Bioreactor (AnMBR) permeate using chemical addition of iron and evaluation of its nutrient availability for plant uptake.

Sci Total Environ 2021 Apr 1;783:146850. Epub 2021 Apr 1.

Department of Civil Engineering, Kansas State University, 2118 Fiedler Hall, 1701C Platt St., Manhattan, KS 66506, USA.

Anaerobic membrane bioreactors (AnMBRs) represent an emerging environmental biotechnology platform with the potential to simultaneously recover water, energy, and nutrients from concentrated wastewaters. The removal and beneficial capture of nutrients from AnMBR permeate has yet to be fully explored, therefore this study sought to foster iron phosphate recovery through a tertiary coagulation process, as well as characterize the recovered nutrient product (RNP) and assess its net phosphorus release, diffusion, and availability for plant uptake. One of the primary goals of this study was to optimize the dose of the coagulant, ferric chloride, and coagulant aid, aluminum chlorohydrate (ACH), for continuous application to the coagulation-flocculation-sedimentation (CFS) unit of an AnMBR pilot plant treating municipal wastewater, through controlled bench-scale jar tests. Read More

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Hydrologic and nutrient-driven regime shifts of cyanobacterial and eukaryotic algal communities in a large shallow lake: Evidence from empirical state indicator and ecological network analyses.

Sci Total Environ 2021 Apr 12;783:147059. Epub 2021 Apr 12.

State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.

The detection and prediction of lake ecosystem responses to environmental changes are pressing scientific challenge of major global relevance. Specifically, an understanding of lake ecosystem stability over long-term scales is urgently needed to identify impending ecosystem regime shifts induced by human activities and improve lake ecosystem protection. This study investigated regime shifts in cyanobacterial and eukaryotic algal communities in a large shallow lake over a century in response to nutrient enrichment and hydrologic regulation using evidence from empirical state indicators and ecological network analyses of sedimentary-inferred communities. Read More

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Critical review of natural iron-based minerals used as heterogeneous catalysts in peroxide activation processes: Characteristics, applications and mechanisms.

J Hazard Mater 2021 Apr 6;416:125809. Epub 2021 Apr 6.

State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China. Electronic address:

Recently, an increasing number of works have been reported about iron-based materials applied as catalysts in peroxide activation processes to degrade pollutants in water. Iron-based catalysts include synthetic and natural iron-based materials. However, some synthetic iron-based materials are difficult to scale up in the practical applications due to high cost and serious secondary environmental pollution. Read More

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3D printing of PEEK and its composite to increase biointerfaces as a biomedical material- A review.

Colloids Surf B Biointerfaces 2021 Mar 26;203:111726. Epub 2021 Mar 26.

Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, UK.

Poly ether-ether-ketone (PEEK) is a polymer with better lignin biocompatibility than other polymers. It is good for biomedical engineering applications. This research summarises the outcomes of an evaluation conducted on PEEK material composites, such as cellular calcium hydroxyapatite (CHAp) for medical applications. Read More

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Remodelling of trabecular bone in human distal tibia: A model based on an in-vivo HR-pQCT study.

J Mech Behav Biomed Mater 2021 Apr 14;119:104506. Epub 2021 Apr 14.

Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, UK.

An abnormal remodelling process of bones can lead to various bone disorders, such as osteoporosis, making them prone to fracture. Simulations of load-induced remodelling of trabecular bone were used to investigate its response to mechanical signal. However, the role of mechanostat in trabecular-bone remodelling has not yet been investigated in simulations underpinned by a longitudinal in-vivo study in humans. Read More

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Bioengineered microfluidic blood-brain barrier models in oncology research.

Transl Oncol 2021 Apr 14;14(7):101087. Epub 2021 Apr 14.

Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, 2713 Doha, Qatar; Biomedical Research Center (BRC), Qatar University, PO Box 2713 Doha, Qatar. Electronic address:

Metastasis is the major reason for most brain tumors with up to a 50% chance of occurrence in patients with other types of malignancies. Brain metastasis occurs if cancer cells succeed to cross the 'blood-brain barrier' (BBB). Moreover, changes in the structure and function of BBB can lead to the onset and progression of diseases including neurological disorders and brain-metastases. Read More

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Methane in wastewater treatment plants: status, characteristics, and bioconversion feasibility by methane oxidizing bacteria for high value-added chemicals production and wastewater treatment.

Water Res 2021 Apr 6;198:117122. Epub 2021 Apr 6.

Department of Civil and Environmental Engineering, Virginia Tech, Manassas, VA 20110, USA. Electronic address:

Methane is a type of renewable fuel that can generate many types of high value-added chemicals, however, besides heat and power production, there is little methane utilization in most of the wastewater treatment plants (WWTPs) all round the world currently. In this review, the status of methane production performance from WWTPs was firstly investigated. Subsequently, based on the identification and classification of methane oxidizing bacteria (MOB), the key enzymes and metabolic pathway of MOB were presented in depth. Read More

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A quantitative approach to resource effectiveness assessment: Application in the Urmia Lake Basin.

J Environ Manage 2021 Apr 14;289:112559. Epub 2021 Apr 14.

Department of Civil and Environmental Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran. Electronic address:

This paper aims to present a new quantitative systematic approach to evaluate the effectiveness of utilizing and allocating resources based on the concept of "Work" in physics. This method is examined in the Urmia Lake Basin (ULB), shrinking of which has threatened the life of about five million inhabitants and ecosystem biodiversity. In the proposed approach, the role of three types of financial, human, and environmental resources in the development process is evaluated quantitatively, and they have been compared in two periods before and after the severe reduction of the lake water volume. Read More

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Mapping Early Pleistocene environments and the availability of plant food as a potential driver of early Homo presence in the Guadix-Baza Basin (Spain).

J Hum Evol 2021 Apr 14;155:102986. Epub 2021 Apr 14.

ROCEEH Research Centre 'The Role of Culture in Early Expansions of Humans' of the Heidelberg Academy of Sciences, Senckenberg Research Institute, Senckenberganlage 25, 60325, Frankfurt am Main, Germany.

The Guadix-Baza Basin, in SE Spain, harbors hominin fossils and lithic artifacts dated to ca. 1.4-1. Read More

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Fabrication of polydopamine-based NIR-light responsive imprinted nanofibrous membrane for effective lysozyme extraction and controlled release from chicken egg white.

Food Chem 2021 Apr 1;357:129613. Epub 2021 Apr 1.

Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, USA. Electronic address:

The development of highly efficient performance matrix for protein adsorption and scalable throughput adsorbent is highly desired, especially in pharmaceuticals and food industries. In this work, we present a simple methodology to prepare a nanofibrous membrane based surface molecular imprinted matrix (MIP) for selective separation of lysozyme. The MIP was developed by coating carboxylated poly (vinyl alcohol-co-ethylene) nanofibrous mat (EVOH-CCA NFM) with a near infrared (NIR)-light responsive polydopamine (PDA) layer. Read More

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HMGB1 expression in leukocytes as a biomarker of cellular damage induced by [Tc]Tc-HMPAO-labelling procedure: A quality control study.

Nucl Med Biol 2021 Apr 9;96-97:94-100. Epub 2021 Apr 9.

Nuclear Medicine Unit, Department of Radiology, Oncology and Human Pathology, "Sapienza" University of Rome, Italy.

Purpose: Autologous White Blood Cells (WBC) scintigraphy is based on a multi-step sequence of cell separation and radiolabelling. Besides in vivo imaging quality control, no molecular tool is available to evaluate WBC damage secondary to cell manipulation. High Mobility Group Box 1 (HMGB1) is a protein of the alarmins family, secreted by innate immune cells and released from the nucleus of damaged cells following different types of injury. Read More

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Role of IGFBP-2 in oral cancer metastasis.

Biochim Biophys Acta Mol Basis Dis 2021 Apr 14:166143. Epub 2021 Apr 14.

Department of Medical Science, Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan. Electronic address:

Cancer metastasis is one of most main causes of failure in cancer treatment. Nonetheless, more than half of oral cancer patients were diagnosed as advanced oral cancer with dramatically decreased 5-year survival rate to lower than 20%, while the stages become more advanced. In order to improve oral cancer treatment, the identification of cancer metastatic biomarkers and mechanisms is critical. Read More

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Preparation of cellulose based wipes treated with antimicrobial and antiviral silver nanoparticles as novel effective high-performance coronavirus fighter.

Int J Biol Macromol 2021 Apr 14. Epub 2021 Apr 14.

Spinning and Weaving Engineering Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt.

Coronaviruses (CoV) are a large family of viruses that cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). We successful to prepare disinfectant cellulose-based wipes treated with antimicrobial and antiviral silver nanoparticles to be used for prevention of contamination and transmission of several pathogenic viruses and microbes to human in critical areas such as hospitals and healthcare centers especially coronavirus. In this work, the antimicrobial and antiviral activities of silver nanoparticles (AgNPs) prepared with four different techniques were investigated for the utilization as a disinfectant for cellulose-based wipes. Read More

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A Qualitative Study of Cognitive, Behavioral, and Environmental Influences on Hispanic Mothers' Early Childhood Feeding Practices.

Appetite 2021 Apr 14:105268. Epub 2021 Apr 14.

Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL.

Young children's lifestyle behaviors are largely shaped by their parents. There are socioeconomic risk factors particular to Hispanic populations that influence the way parents feed their children. As obesity continues to be a public health issue with substantial inequities across race and ethnicity, it is critical to understand Hispanic parents' food choices and feeding practices. Read More

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Decoding imagined speech and computer control using brain waves.

J Neurosci Methods 2021 Apr 14:109196. Epub 2021 Apr 14.

Department of Computer Science and Engineering, Indian Institute of Technology Bombay, India. Electronic address:

Background: . In this work, we explore the possibility of decoding Imagined Speech (IS) brain waves using machine learning techniques.

Approach: . Read More

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Exploring providers' experience of stigma following the introduction of more liberal abortion care in the Republic of Ireland.

Contraception 2021 Apr 14. Epub 2021 Apr 14.

UCD Perinatal Research Centre, University College Dublin, National Maternity Hospital, Holles St, Dublin 2, Ireland.

Objective: To explore if abortion care providers in the Republic of Ireland experience abortion-related stigma.

Study Design: The survey was distributed to abortion care providers working in community and hospital units nationwide. We measured stigma using the 35-item version of the Abortion Providers Stigma Scale (APSS). Read More

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