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2023

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Remedies For Universal Service Funding Compassion Fatigue, Frieden, Rob Jan 2023

Remedies For Universal Service Funding Compassion Fatigue, Frieden, Rob

Santa Clara High Technology Law Journal

Nearly every nation in the world has a government mandated program aiming to make telecommunications service more widely available and affordable. Universal service funding subsidies have garnered popular support largely based on the shared view that society and individuals benefit from progress in achieving ubiquitous and affordable access, initially to voice telephone service. Technological developments and changes in consumer requirements have generated support for expanding the universal service mission to include broadband access to the Internet, and to identify a growing number of subsidy beneficiaries, now including schools, libraries, healthcare facilities, telephone companies operating in high-cost areas, and people with …


University Of Richmond Magazine - Spring 2023 Jan 2023

University Of Richmond Magazine - Spring 2023

University of Richmond Magazine

The University of Richmond's Alumni Magazine was first published as The Alumni Bulletin in 1936 and continues to this day as the University of Richmond Magazine.


New Family Law Statutes In 2022: Selected State Legislation, Family Law Quarterly 2022–23 Editors, New York Law School Jan 2023

New Family Law Statutes In 2022: Selected State Legislation, Family Law Quarterly 2022–23 Editors, New York Law School

Redefining Family Law: State Legislative Updates

This article provides summaries and context for 35 changes to family law that were enacted in 2022 by legislatures in 23 states. The topics include Child Custody, “Nonparent” Custody and Visitation, Child Representation and Child Welfare, Divorce and Alimony/Maintenance, Property Division, Child Support, Parentage, and Domestic Violence. These topics are based on annual Charts published in the Year in Review issue of the Family Law Quarterly. The Charts are updated each year to track changes in these specific areas of law and survey statutes within the 50 states, District of Columbia, and Puerto Rico. The laws in this article were …


#Teacherquittok: A Content Analysis Of How Current And Former Teachers Navigate Attrition On Tiktok, Forrest J. Kaiser Jan 2023

#Teacherquittok: A Content Analysis Of How Current And Former Teachers Navigate Attrition On Tiktok, Forrest J. Kaiser

Education Faculty Publications and Presentations

The purpose of this study is to use thematic content analysis to examine conversations and factors most discussed by teachers centering on attrition using the TikTok social media platform. Social media offers teachers a way to connect with others and share their thoughts while maintaining a perceived level of professional distance from their workplace. This research will explore how teachers use social media to provide a window into their classroom, working conditions, and decisions to leave or stay. The study was guided by the following questions: (1) How are current and former teachers using the TikTok social media platform to …


Gvsu Undergraduate And Graduate Catalog, 2023-2024, Grand Valley State University Jan 2023

Gvsu Undergraduate And Graduate Catalog, 2023-2024, Grand Valley State University

Course Catalogs, 1963 - Current

Grand Valley State University 2023-2024 undergraduate and graduate course catalog. Course catalogs are published annually to provide students with information and guidance for enrollment.


Evaluation Of Physiological Responses To Woodsmoke Inhalation During Exercise In Blood Pressure Sensitive/Chronotrope Stratified Individuals, Joseph Alan Sol Jan 2023

Evaluation Of Physiological Responses To Woodsmoke Inhalation During Exercise In Blood Pressure Sensitive/Chronotrope Stratified Individuals, Joseph Alan Sol

Graduate Student Theses, Dissertations, & Professional Papers

The aim of this dissertation was to evaluate the acute physical reaction to WS exposure and identify potential fingerprints of physiological responses that may better illustrate the process leading to pathology from chronic exposure to particulate matter (PM). Study 1 developed a cost-effective, reproducible methodology for obtaining larger volume and pH-stable exhaled breath condensate (EBC) samples. Notably, the novel EBC device, compared to a commercially-available device, collected a larger sample volume, permitting an expansion in the number of biomarkers that could be examined in future WS exposures. The EBC device was then incorporated in Study 2, along with measuring key …


Tlr4 Adjuvanted Vaccine Against Pseudomonas Aeruginosa Virulence Factor, Pf Bacteriophage, Induces Increased Immunoglobulin Response And Highly Mutated Antigen-Specific B-Cell Receptors, Valery Cristina Roman-Cruz Jan 2023

Tlr4 Adjuvanted Vaccine Against Pseudomonas Aeruginosa Virulence Factor, Pf Bacteriophage, Induces Increased Immunoglobulin Response And Highly Mutated Antigen-Specific B-Cell Receptors, Valery Cristina Roman-Cruz

Graduate Student Theses, Dissertations, & Professional Papers

Pseudomonas aeruginosa is listed as a priority 1 pathogen by the World Health Organization. Although this Gram-negative bacterium is ubiquitous and can naturally be found in the environment, it is opportunistic. P. aeruginosa has a wide range of host immune evasion strategies; one such strategy is the establishment of biofilms. Pf bacteriophage, a P. aeruginosa virulence factor, can strengthen the integrity of biofilms and can also misdirect the host immune response from an appropriate anti-bacterial response to an anti-viral response. Previous studies have established that antibodies against Pf bacteriophage can enhance clearance of P. aeruginosa infections. Next generation adjuvants such …


Competition For Personnel: A Barrier To Prescribed Burning In The San Juan National Forest, Trevor Finney Jan 2023

Competition For Personnel: A Barrier To Prescribed Burning In The San Juan National Forest, Trevor Finney

Graduate Student Theses, Dissertations, & Professional Papers

Using personnel data from the Resource Ordering and Status System (ROSS) this paper analyzes the relationship between personnel and prescribed burn frequency for the San Juan National Forest. Prescribed burning is used as a tool for mitigating wildfire risk by removing hazardous fuels but faces many barriers from policy to systemic disincentives. Personnel unavailability is one of these barriers that consistently challenges managers on National Forests when attempting to conduct prescribed burns. An instrumental variables approach is used to estimate the impact of personnel unavailability on managers decisions to conduct prescribed burns between 2014 and 2022. Estimates do not support …


Policing Veterans: What The Veterans Affairs Police Can Illustrate About The Policing Of Disability In America, Zachary R.M. Outzen Jan 2023

Policing Veterans: What The Veterans Affairs Police Can Illustrate About The Policing Of Disability In America, Zachary R.M. Outzen

Faculty Publications

The Department of Veterans Affairs Police (“VA Police”), a federal law enforcement agency tasked with law enforcement on Department of Veterans Affairs (VA) properties, has a shocking record of misconduct and brutality against veterans. Because the VA is the largest integrated healthcare system in the United States, the VA Police are primarily responsible for policing VA medical facilities. While issues facing the veteran community have largely been analyzed as separate from those facing the American public at large, VA medical facilities replicate broader socioeconomic trends in policing of vulnerable populations. Veterans receiving VA healthcare services are disproportionately likely to be …


Taxes, Administrative Law, And Agency Expertise: Questioning The Orthodoxy, Scott Schumacher Jan 2023

Taxes, Administrative Law, And Agency Expertise: Questioning The Orthodoxy, Scott Schumacher

Articles

One of the foundations of administrative law is that federal agencies and their employees are experts in their respective fields. In addition, the many judgments and decisions made by these experts are based on a thorough record after extensive factfinding. As a result, so the theory goes, courts, particularly courts of general jurisdiction like the United States District Courts, should give deference to the determinations made by these experts. But what if the facts underpinning this foundation are not true in all cases? Should courts nevertheless provide deference to decisions by agencies when it is evident that an agency's determinations …


Due Process Deportations, Angelica Chazaro Jan 2023

Due Process Deportations, Angelica Chazaro

Articles

Should pro-immigrant advocates pursue federally funded counsel for all immigrants facing deportation? For most pro-immigrant advocates and scholars, the answer is self-evident: More lawyers for immigrants would mean more justice for immigrants, and thus, the federal government should fund such lawyers. Moreover, the argument goes, federally funded counsel for immigrants would improve due process and fairness, as well as make immigration enforcement more efficient. This Article argues the opposite: Federally funded counsel is the wrong goal. The majority of expulsions of immigrants now happen outside immigration courts— and thus are impervious to immigration lawyering. Even for those who make it …


Incidents Of Snake Fungal Disease Caused By The Fungal Pathogen Ophidiomyces Ophidiicola In Texas, Alan Lizarraga, Lezley Hart, Michele Nolen, Lance R. Williams, Joseph S. Glavy Jan 2023

Incidents Of Snake Fungal Disease Caused By The Fungal Pathogen Ophidiomyces Ophidiicola In Texas, Alan Lizarraga, Lezley Hart, Michele Nolen, Lance R. Williams, Joseph S. Glavy

Pharmacy Faculty Publications and Presentations

The pathogen Ophidiomyces ophidiicola, widely known as the primary cause of snake fungal disease (SFD), has been detected in Texas’s naïve snakes. Our team set out to characterize O. ophidiicola’s spread in eastern Texas. From December 2018 until November 2021, we sampled and screened with ultraviolet (UV) light 176 snakes across eastern Texas and detected 27. O. ophidiicola’s positive snakes using qPCR and one snake in which SFD was confirmed via additional histological examination. Upon finding the ribbon snake with a clear clinical display, we isolated and cultured what we believe to be the first culture from Texas. This cultured …


Feasibility Of And Experience Using A Portable Mri Scanner In The Neonatal Intensive Care Unit., Maura Sien, Amie L. Robinson, Houchun H. Hu, Christopher R. Nitkin, Ara Hall, Marcie G. Files, Nathan S. Artz, John T. Pitts, Sherwin S. Chan Jan 2023

Feasibility Of And Experience Using A Portable Mri Scanner In The Neonatal Intensive Care Unit., Maura Sien, Amie L. Robinson, Houchun H. Hu, Christopher R. Nitkin, Ara Hall, Marcie G. Files, Nathan S. Artz, John T. Pitts, Sherwin S. Chan

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: A portable, low-field MRI system is now Food and Drug Administration cleared and has been shown to be safe and useful in adult intensive care unit settings. No neonatal studies have been performed. The objective is to assess our preliminary experience and assess feasibility of using the portable MRI system at the bedside in a neonatal intensive care unit (NICU) at a quaternary children's hospital.

STUDY DESIGN: This was a single-site prospective cohort study in neonates ≥2 kg conducted between October and December 2020. All parents provided informed consent. Neonates underwent portable MRI examination in the NICU with support …


Interrelationships In Inventory Turnover Performance Between Supplier And Customer Firms, Joseph J. Henry, Peter Christensen, James C. Brau Jan 2023

Interrelationships In Inventory Turnover Performance Between Supplier And Customer Firms, Joseph J. Henry, Peter Christensen, James C. Brau

Faculty Publications

Using inventory turnover to measure the efficiency of corporate inventory management, we perform econometric analyses to verify whether the inventory efficiency of a firm’s supply chain partners is a statistically significant driver of the firm’s own inventory efficiency. We test two mutually exclusive hypotheses. First, suppliers hold inventory on behalf of customers, effectively displacing inventory up the supply chain and resulting in a negative correlation between supplier and customer inventory turnover. Alternatively, inventory efficiency is integrated along the supply chain, resulting in a positive correlation between supplier and customer inventory turnover. Our bivariate and multivariate analyses of both firm- and …


The Challenge Of Measuring Traditional And Digital Audiences In A Global Market, Jorge Gallardo-Camacho, César García, Belén Puebla-Martínez Jan 2023

The Challenge Of Measuring Traditional And Digital Audiences In A Global Market, Jorge Gallardo-Camacho, César García, Belén Puebla-Martínez

All Faculty Scholarship for the College of Arts and Humanities

This monograph titled Audiences and new forms of broadcast: linear, on-demand, streaming and/or social has five articles that represent the complexity of the phenomenon of audiences across fields and from different perspectives: Traditional television consumption, viewing of Netflix, the social audience of video platforms, the new tastes of viewers for vertical formats driven by mobile phones, and the relationship of influencers with their audiences. This number raises the problem of audience measurement, quantification, and comparison in the new digital age. The measurement of audiovisual audiences faces the problem of the lack of a measurement system accepted in all regions and …


Toxic Timescapes: Examining Toxicity Across Time And Space, Simone M. Müller, May-Brith Ohman Nielsen Jan 2023

Toxic Timescapes: Examining Toxicity Across Time And Space, Simone M. Müller, May-Brith Ohman Nielsen

Ohio University Press Open Access Books

An interdisciplinary environmental humanities volume that explores human-environment relationships on our permanently polluted planet.

While toxicity and pollution are ever present in modern daily life, politicians, juridical systems, media outlets, scholars, and the public alike show great difficulty in detecting, defining, monitoring, or generally coming to terms with them. This volume’s contributors argue that the source of this difficulty lies in the struggle to make sense of the intersecting temporal and spatial scales working on the human and more-than-human body, while continuing to acknowledge race, class, and gender in terms of global environmental justice and social inequality.

The term toxic …


Educate Or Litigate? The Mindsets Of Advancing Knowledge And Maintaining Financial Stability In Higher Education, Cherri Brown, Cheryl Lentz Jan 2023

Educate Or Litigate? The Mindsets Of Advancing Knowledge And Maintaining Financial Stability In Higher Education, Cherri Brown, Cheryl Lentz

Publications

The educational mindset for online higher degrees, specifically the master’s and doctoral journey, shifted from the refractive thinking perspective as transformational experiences, producing objective decision-making processes, to transactional business exchanges, and in some institutions, an exchange for investors and stakeholders. Nehrlich (2006) coined “transactional exchange” as an exchange of one thing for another involving some form of gain. This chapter presents the business of marketing higher education programs (i.e., master’s and doctoral degrees) and the front-line faculty positioned to achieve an institution’s profit margin derived from degree production. Our goal is to discuss the losses and gains when faculty, who …


Behavioral Health Grants Overview 2022, Parkview Health Jan 2023

Behavioral Health Grants Overview 2022, Parkview Health

Health Services and Informatics Research

2022 List of Externally and Internally Funded Research for our Behavioral Health Outreach Initiatives.

Our Mission: To strengthen awareness around mental health, support needs in our community, reduce stigma, and encourage people to connect with care.


Conceptualizing Care Partners' Burden, Stress, And Support For Reintegrating Veterans: A Mixed Methods Study., Nicholas A Rattray, Mindy Flanagan, Allison Mann, Leah Danson, Ai-Nghia Do, Diana Natividad, Katrina Spontak, Gala True Jan 2023

Conceptualizing Care Partners' Burden, Stress, And Support For Reintegrating Veterans: A Mixed Methods Study., Nicholas A Rattray, Mindy Flanagan, Allison Mann, Leah Danson, Ai-Nghia Do, Diana Natividad, Katrina Spontak, Gala True

Health Services and Informatics Research

BACKGROUND: People who support Veterans as they transition from their military service into civilian life may be at an increased risk of psychological distress. Existing studies focus primarily on paid family caregivers, but few studies include spouses and informal non-family "care partners." We sought to identify key challenges faced by care partners of Veterans with invisible injuries.

METHODS: Semi-structured interviews were conducted with 36 individuals involved in supporting a recently separated US military Veteran enrolled in a 2-year longitudinal study. CPs completed validated measures on perceived stress, caregiving burden, quality of their relationship, life satisfaction, and flourishing. Independent

RESULTS: Care …


Birth Of A Narrative: Santa Anna Satanized On The Silver Screen, Eddie Anthony Paniagua Jr. Jan 2023

Birth Of A Narrative: Santa Anna Satanized On The Silver Screen, Eddie Anthony Paniagua Jr.

Capstone Projects

“Birth of a Narrative” is a documentary project looking at the history of how former President of Mexico, Antonio López de Santa Anna, has been depicted in movies, television shows, and other visual media in the United States. American film producers have used the power of motion pictures to create a racialized narrative villainizing Antonio López de Santa Anna and Mexicans so as to aggrandize expansionists bent on eliminating or subordinating Tejanos. Films like “Birth of Texas: Martyrs of the Alamo” by DW Griffith and “The Alamo” by John Wayne pulled no punches as they project racial stereotypes of Latinos …


Relationships Among Perceptions Of Support, Experiences Of Gatekeeping, And Burnout In Counselor Educators And Supervisors, Alicia Lamar Jan 2023

Relationships Among Perceptions Of Support, Experiences Of Gatekeeping, And Burnout In Counselor Educators And Supervisors, Alicia Lamar

Dissertations

Counselor educators and supervisors carry out the responsibility of ensuring that counselors in training are competent and fit for practice. Burnout can occur when stressors in the workplace are not addressed. Engagement in the role of gatekeeper and perceptions of support can be factors that impact burnout in counselor educators. The exploration of variables that may relate to counselor educator burnout would benefit the counseling community including counselor educators, counseling students, counseling clients, and the community at large. There has been a paucity of research exploring the relationships among faculty members’ perceptions of support, experiences of gatekeeping, and burnout in …


Response Of Some Mango-Infesting Fruit Flies To Aqueous Solutions Of The Basil Plant Ocimum Tenuiflorum L, Saliou Niassy, Samira Abuelgasim Mohamed, Xavier Cheseto, Evanson Rigan Omuse, John Bwire Ochola, Fathiya Mbarak Khamis, Boubacar Badji, Sheppard Ndlela, Levi Ombura, Noelah Leah Okun, David Mfuti Kupesa, Thomas Dubois, Yeneneh Taye Belayneh, Sevgan Subramanian, Sunday Ekesi Jan 2023

Response Of Some Mango-Infesting Fruit Flies To Aqueous Solutions Of The Basil Plant Ocimum Tenuiflorum L, Saliou Niassy, Samira Abuelgasim Mohamed, Xavier Cheseto, Evanson Rigan Omuse, John Bwire Ochola, Fathiya Mbarak Khamis, Boubacar Badji, Sheppard Ndlela, Levi Ombura, Noelah Leah Okun, David Mfuti Kupesa, Thomas Dubois, Yeneneh Taye Belayneh, Sevgan Subramanian, Sunday Ekesi

All Peer-Reviewed Publications

Introduction: Horticulture is an important sub-sector for many African countries. Tephritid fruit flies continue to cause serious direct and indirect damage to the sub-sector. The male annihilation technique (MAT) using methyl eugenol (ME) is among the most revered techniques in fruit fly management. However, ME-based lures are only available to some farmers in Africa. Several basils of the genus Ocimum produce ME. Methods: In laboratory experiments, we used a dual choice olfactometer to assess the attraction of adult oriental fruit fly Bactrocera dorsalis to intact plants, 100 µL commercial methyl eugenol (ME) (positive control), 10 mg/mL of O. tenuiflorum aqueous …


Transport 2040 : Impact Of Technology On Seafarers : The Future Of Work, World Maritime University Jan 2023

Transport 2040 : Impact Of Technology On Seafarers : The Future Of Work, World Maritime University

Reports

Through generous funding from the International Transport Workers’ Federation (ITF), the World Maritime University (WMU) has conducted Phase II of the Transport 2040 flagship project, building on the previous Phase I of the project. Phase II offers a further in-depth exploration of a number of maritime issues related to future ship technologies, including automation, and seeks to qualify the probable impact on seafarers.

Recent discussions in the maritime sector have given rise to expectations that automated ships could become operative in the near future, which has prompted the International Maritime Organization (IMO) to initiate a number of activities. Digital smart …


Modelling The Transmission Dynamics Of African Animal Trypanosomiasis; A Case Study Of Shimba Hills, Kwale County, Kenya, Gladys Jerono Rotich Jan 2023

Modelling The Transmission Dynamics Of African Animal Trypanosomiasis; A Case Study Of Shimba Hills, Kwale County, Kenya, Gladys Jerono Rotich

All Master’s Theses

African Animal Trypanosomiasis (AAT) is caused by parasites of the species Trypanosoma vivax, Trypanosoma congolense, and Trypanosoma rhodesiense. Of 48 sub-Saharan African nations, 36 have endemic cases of AAT. The disease is prevalent in savannah and woodland areas. It poses a major threat to livestock production and health in agro-pastoralist communities, many of which are located along the boundaries of wildlife reserves. Most epidemiological studies on AAT around Shimba Hills National Reserve (SHNR) have focused on the vectors (tsetse fly) and the host (cattle). No studies have been done to show how efficiently a trypanosome can be transmitted from tsetse …


Winter 2023: Evolution Jan 2023

Winter 2023: Evolution

The Weldon Times

A student-run publication from the Schulich School of Law at Dalhousie University.

Editor in Chief: Madeline Heinke


Ph-Responsive Polymeric Nanostructures For Cancer Theranostics, Devadass Jessy Mercy, Karthick Harini, Swaminathan Madhumitha, Chinnadurai Anitha, Jayakumar Iswariya, Koyeli Girigoswami, Agnishwar Girigoswami Jan 2023

Ph-Responsive Polymeric Nanostructures For Cancer Theranostics, Devadass Jessy Mercy, Karthick Harini, Swaminathan Madhumitha, Chinnadurai Anitha, Jayakumar Iswariya, Koyeli Girigoswami, Agnishwar Girigoswami

Journal of Metals, Materials and Minerals

Responsive polymeric nanostructures are being designed to improve the efficiency of existing treatment techniques by delivering therapeutics in precise locations. The properties of the particles can be altered to act as a probe for imaging applications also. Hence, an effective theranostic agent can be tailor-made to meet the requirements. The pH variability has aroused considerable interest in nano-responsive-stimulus production since the mild acidic condition is a hallmark of the tumor microenvironment. The cargo sealed inside the carrier will be released either by swelling or disassembly of the carrier as they meet a pH drop. The modification strategy for the synthesis …


Paper-Based Colorimetric Sensor For Mercury Ion Detection Using Smartphone Digital Imaging, Pakorn Preechaburana, Somsak Sangnuy, Supaluck Amloy Jan 2023

Paper-Based Colorimetric Sensor For Mercury Ion Detection Using Smartphone Digital Imaging, Pakorn Preechaburana, Somsak Sangnuy, Supaluck Amloy

Journal of Metals, Materials and Minerals

In this research, we have developed a colorimetric paper-based sensing platform for the determination of mercury ion (Hg2+) using gold nanoparticles (AuNPs). To evaluate the selectivity in the response to a special target, urea is used as recognizing ligands on AuNPs for selective sensing Hg2+. Colorimetric readings in the presence of various environmentally relevant metal ions, such as Na+, K+, Zn2+, Pb2+, and Hg2+, were also studied. The results show that amongst all the tested metal ions, the SPR peaks are located at 525 nm except in the case of the present of Hg2+, in which is red shifted to …


A Review On New Cobalt-Free Cathode Materials For Reversible Solid Oxide Fuel Cells, Sedat Akkurt, Can Sindiraç, Tuğçe Özmen Egesoy, Emre Erğen Jan 2023

A Review On New Cobalt-Free Cathode Materials For Reversible Solid Oxide Fuel Cells, Sedat Akkurt, Can Sindiraç, Tuğçe Özmen Egesoy, Emre Erğen

Journal of Metals, Materials and Minerals

The exponential growth in the requirement of fuel cells and batteries leads to increased demand for cobalt due to its common use in high-performance Li-ion batteries and high-temperature fuel cells/electrolyzers. This sharp increment in demand raises concern about the availability of limited reserves of cobalt which can impact the price of cobalt. Moreover, the geographic limitations of cobalt resources may endanger the whole supply chain. In addition to all those, huge moral issues of cobalt mining are also another problem. Hence, leading battery, fuel cells and electrolyzer manufacturers are looking for sustainable alternatives to reduce cobalt dependency. A more specific …


Multipurpose Fluorescent Carbon Dots From Papaya Seed Waste As Sensing Materials For Cu2+ Detection And Diethyl Ether Vapor Sensor Via Electronic Nose System, Nichaphat Thongsai, Aphinya Chuiduang, Sumana Kladsomboon, Insik In, Peerasak Paoprasert Jan 2023

Multipurpose Fluorescent Carbon Dots From Papaya Seed Waste As Sensing Materials For Cu2+ Detection And Diethyl Ether Vapor Sensor Via Electronic Nose System, Nichaphat Thongsai, Aphinya Chuiduang, Sumana Kladsomboon, Insik In, Peerasak Paoprasert

Journal of Metals, Materials and Minerals

Herein, carbon dots (CDs) as biocompatible, fluorescent carbon-based nanomaterials were synthesized from papaya seed waste as renewable carbon sources for the first time via a facile acid pyrolysis method. The papaya seed-derived CDs showed blue fluorescence emission under UV light (365 nm) with a quantum yield of 2.74%, and contained oxygen-, and nitrogen- containing functional groups. Due to their surface functionality, the CDs have a great potential for using as fluorescence sensing probe in metal ion sensing application. The CD solution exhibited the most selective detection to Cu2+ as presented the highest fluorescence quenching with the limit of detection (LOD) …


Structural And Electrical Properties Of 0.98(Ko0.5na0.5onboo3)-0.02(Bio0.5nao0.5tioo3) Ceramics, Swayam Aryam Behera, Sugato Hajra, Swati Panda, Ali Amanat, P. G. R. Achary Jan 2023

Structural And Electrical Properties Of 0.98(Ko0.5na0.5onboo3)-0.02(Bio0.5nao0.5tioo3) Ceramics, Swayam Aryam Behera, Sugato Hajra, Swati Panda, Ali Amanat, P. G. R. Achary

Journal of Metals, Materials and Minerals

In the present communication, lead-free ceramics having composition 0.98(K0.5Na0.5NbO3)-0.02(Bi0.5Na0.5TiO3) were synthesized by a high-temperature solid-state reaction route. The Rietveld refinement for the 0.98KNN-0.02BNT reveals an MPB with phase fraction Amm2 (87.76 %) and Pm-3m (12.27%). The SEM study predicted a mean diameter of 0.98KNN-0.02BNT grains as 0.52µm±0.19. The 0.98KNN-0.02BNTceramic displayed a typical hysteresis loop with a remnant polarisation(Pr) of 7.0 μC/cm2, saturation polarization (Ps) of 16 μC/cm2, and a coercive field (Ec) of 26 kV/mm. The electrical, Raman spectra, dielectric, and hysteresis loop study supported a morphotropic phase boundary. The synthesized KNN-BNT lead-free material can be an excellent material for …