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A flower-like Ag coated with molecularly imprinted polymers as surface-enhanced Raman scattering substrate for sensitive and selective detection of glibenclamide

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00575D, Paper
Xiaohui Ren, Xin Li
The flower-like Ag, was formed by nanosheets self-assembly, as SERS active substrate was utilized for preparation of flower-like Ag@molecularly imprinted polymers (MIPs) surface-enhanced Raman scattering (SERS) sensor. Based on the...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Rapid and colorimetric detection of nucleic acids based on entropy-driven circuit and DNAzyme mediated autocatalytic reaction

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00341G, Paper
Hongli Shi, Jianyuan Dai, fang Wang, Yushun Xia, Dan Xiao, Cuisong Zhou
In this work, a novel, rapid and enzyme-free colorimetric biosensor for nucleic acids detection has been developed based on entropy-driven circuit (EDC) and DNAzyme mediated autocatalytic reaction. Upon sensing of...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Fabrication of an electrochemical sensor based on metal-organic framework ZIF-8 for quantitation of silver ion: optimizing experimental conditions by central composite design (CCD)

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00843E, Paper
Farzaneh Hashemi , Ali Reza Zanganeh, Farid Naeimi , Maryam Tayebani
The ZIF-8 was synthesized and carbon paste electrode (CPE) modified with this metal-organic framework utilized for quantitation of silver(Ι) by differential pulse anodic stripping voltammetry (DPASV) technique. The prepared ZIF-8...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Digital Reference Section (DRS) Virtual Programs: New blog post invites readers to "Sample a Taste of History This Thanksgiving"

Find a new and historic recipe for a dish to put on your Thanksgiving table in What Mrs. Fisher Knows About Old Southern Cooking. This cookbook, published in 1881, is highlighted in a recent post on the Library of Congress Blog. Abby Fisher perfected her culinary skills as an enslaved cook on a South Carolina plantation but went on to establish a successful catering business in San Francisco and publish a compilation of her recipes—one of the first by an African-American. Learn more about this remarkable woman and, this Thanksgiving, sample a taste of history!

Click here to go to the Library of Congress Blog post, "Sample a Taste of History This Thanksgiving!"




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January 15 Intro to loc.gov

Make the most of the Library's online collections: photographs, maps, sound recordings, films, legal and historical documents, and more. Join the Digital Reference Section's next free one-hour webinar for an interactive orientation to loc.gov.

Title: Introducing loc.gov: Orientation and Research Strategies
Date
: Tuesday, January 15
Time
: 11:00 am - 12:00 noon EST

Registration (required): Please register via Eventbrite.

Orientations are held in real time via webinar software, which allows participants from around the country and the world to join us. Confirmation and log-on instructions will be sent via email. Please read the Library of Congress Comment and Posting Policy.

ADA: Request ADA accommodations five days in advance at (202) 707-6362 or ada@loc.gov. Registration for the program is also required.

Questions? Ask A Librarian!




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April 3 Webinar: Caught in the Web? Online Tools for Business Research

Please join us for our April topical webinar:

Caught in the Web? Online Tools for Business Research

With so many options available, identifying the best ways to meet your research needs online can be a challenge. Please join our business librarians for an overview of freely available tools for business research, for beginning and intermediate-level users. Topics discussed will include: types of business information, effective use of online search engines, the importance of the deep web, identifying reliable sources of business information, and more. By the end of this program participants will be able to successfully search a research topic online, navigate selected Internet sources, and discover resources and services offered through the Library of Congress Business Reference Section.

Date: Wednesday, April 3
Time: 12:00 noon – 1:00 pm EDT
Registration: Please register via Eventbrite

How to Attend:

Web discussions are held in real time via webinar software, which allows participants from around the country and the world to join us. Registration is required. Confirmation and log on instructions will be sent via email. Please read the Library of Congress Comment and Posting Policy.

Technical requirements: Participants must have access to an Internet-connected computer or device with speakers or headphones. There is also a telephone option for listening to audio.

ADA: Request ADA accommodations five days in advance at (202) 707-6362 or ada@loc.gov. Registration for the program is also required.

Questions? Ask A Librarian.




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May 30 Webinar: Happy Birthday Walt!: Digitized Walt Whitman Collections from the Manuscript Division

Reminder!!

Please join us for our May topical webinar:

Happy Birthday Walt!: Digitized Walt Whitman Collections from the Manuscript Division

May 2019 marks the 200th anniversary of the birth of poet Walt Whitman, who revolutionized the style and content of American poetry with his 1855 publication of Leaves of Grass. Whitman was also a journalist, printer, publisher, orator, and prose writer.

The Library of Congress holds the largest group of Whitman-related special collection materials in the world, including printed materials, rare books, photographs, and manuscripts. In this webinar program, Manuscript Division historian Barbara Bair highlights the content and research use of three digitized Whitman manuscript collections as well as programs celebrating Whitman’s birthday at the Library of Congress.

Date: Thursday, May 30
Time
: 1:00 pm – 2:00 pm EDT
Registration (required): Please register via Eventbrite.

This program will be held in real time via webinar software, which allows participants from around the country and the world to join us. Confirmation and log-on instructions will be sent via email. Please read the Library of Congress Comment and Posting Policy.

ADA: Request ADA accommodations five days in advance at (202) 707-6362 or ada@loc.gov. Registration for the program is also required.

Questions? Ask A Librarian!

 




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Sept. 12 Intro to loc.gov

Make the most of the Library's online collections: photographs, maps, sound recordings, films, legal and historical documents, and more. Join the Digital Reference Section's next free one-hour webinar for an interactive orientation to loc.gov.

Title: Introducing loc.gov: Orientation and Research Strategies
Date
: Thursday, September 12
Time
: 2:30 pm - 3:30 pm EDT

Registration (required): Please register via Eventbrite.

Orientations are held in real time via webinar software, which allows participants from around the country and the world to join us. Confirmation and log-on instructions will be sent via email. Please read the Library of Congress Comment and Posting Policy.

ADA: Request ADA accommodations five days in advance at (202) 707-6362 or ada@loc.gov. Registration for the program is also required.

Questions? Ask A Librarian!




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Metrics for Assessing Physician Activity Using Electronic Health Record Log Data

Electronic health record (EHR) log data have shown promise in measuring physician time spent on clinical activities, contributing to deeper understanding and further optimization of the clinical environment.




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Mathematica Showcases Innovative Analysis, Data Mining, and Visualizations at Health Datapalooza

At this year’s Health Datapalooza in Washington, DC, Mathematica staff will showcase their expertise in data visualizations, machine learning, and data mining to help progress together on critical issues in today’s health policy environment.




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Six-Year Earnings and Disability Benefit Outcomes of Youth Vocational Rehabilitation Applicants

The authors document the earnings in the sixth calendar year after youths’ vocational rehabilitation (VR) applications and Social Security Administration (SSA) benefit outcomes during the six years after their VR applications.




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Insights About the Transition System for SSI Youth from the National Evaluation of Promoting Readiness of Minors in SSI (PROMISE)

This article discusses insights gained from the national PROMISE evaluation about the current transition system, which are relevant to current initiatives supporting youth with disabilities during the transition to adulthood.




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Mathematica Named Grand Prizewinner in the Visualization Resources of Community-Level Social Determinants of Health Challenge Sponsored by the Agency for Healthcare Research and Quality

The Agency for Healthcare Research and Quality (AHRQ) announced today that Mathematica is the grand prizewinner of the Agency’s Visualization Resources of Community-Level Social Determinants of Health Challenge for its Data Visualization Tool.




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Positive Findings from Year 2 of the Centers for Medicare & Medicaid Services’ Million Hearts® Cardiovascular Disease Risk Reduction Model

Mathematica has released positive evaluation findings from Year 2 of the Million Hearts® model, just in time for American Heart Month this February.




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Assistive Technology Services for Youth in the Vermont Linking Learning to Careers Program

The Vermont Division of Vocational Rehabilitation’s Linking Learning to Careers (LLC) program provides enhanced services to help high school students with disabilities as they make the transition to careers or postsecondary education. These enhanced services include access to assistive technology.




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Development of the Uncertainty Communication Checklist: A Patient-Centered Approach to Patient Discharge From the Emergency Department

Clear communication with patients upon emergency department (ED) discharge is important for patient safety during the transition to outpatient care.




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The Role of the Workforce System in Addressing the Opioid Crisis: A Review of the Literature

This literature review was conducted as part of an evaluation of the National Health Emergency demonstration grants awarded by the U.S. Department of Labor to states that using their workforce systems to address problems presented by the opioid crisis.




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The Role of the Workforce System in Addressing the Opioid Crisis: A Resource Guide

This guide supports state recipients of the U.S. Department of Labor National Health Emergency demonstration grants that leverage their workforce systems to address problems presented by the opioid crisis.




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Legacy of the MacArthur Foundation’s Maternal Health Quality of Care Strategy in India

This report presents the findings from Mathematica’s cumulative review of the John D. and Catherine T. MacArthur Foundation’s Maternal Health Quality of Care (MHQoC) strategy in India.




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The Changing Landscape of Primary Care: Effects of the ACA and Other Efforts Over the Past Decade

This Health Affairs article describes primary care delivery system reform models that were developed and tested over the past decade by the Center for Medicare and Medicaid Innovation—which was created by the Affordable Care Act—and reflect on key lessons and remaining challenges.




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After a Decade, Mathematica Examines Affordable Care Act’s Impact on Primary Care

In the March issue of Health Affairs, which is devoted to examining the effects and legacy of the ACA, Mathematica’s experts discuss “The Changing Landscape of Primary Care: Effects of the ACA and Other Efforts over the Past Decade.”




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Mathematica at SXSW EDU: Highlighting Innovative Tools and Strategies in Education

For 10 years, the South by Southwest (SXSW) EDU conference has provided a venue to share cutting-edge ideas and tools with a community of creative and passionate changemakers who want to advance teaching and learning.




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Arnold Ventures Awards $6 Million Grant to Study Replication and Evaluation of Penn Nursing’s Transitional Care Model

Mathematica study will evaluate the effectiveness of the Transitional Care Model (TCM) in reducing rehospitalizations and will promote widespread use of the program in a number of health systems.




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Significant Contributions Advance the Understanding of Disability Programs and the People They Serve

Mathematica’s Center for Studying Disability Policy has provided valuable insights into the Social Security Administration’s (SSA) disability programs during its seven years as a research center for the SSA’s Disability Research Consortium (DRC).




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New Study Measures High Schools’ Impacts on Students’ Long-Term Outcomes

Mathematica’s study helps Louisiana measure its public high schools’ contribution to student outcomes such as high school graduation, college enrollment, and eventual earnings.




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The Promotion Power Impacts of Louisiana High Schools (Executive Summary)

This summary describes a study that measured Louisiana public high schools’ promotion power, which is a school’s effect on the long-term success of its students as indicated by high school graduation, college or career readiness, college enrollment and persistence, and earnings.




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The Promotion Power Impacts of Louisiana High Schools

This report describes the data and methods used to measure Louisiana public high schools’ promotion power, which is a school’s effect on the long-term success of its students as indicated by high school graduation, college or career readiness, college enrollment and persistence, and earnings.




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A Comparison of Cancer Stage at Diagnosis and Treatment Initiation Between Enrollees in an Urban HIV Clinic and SEER

A comparison of stage at cancer diagnosis and cancer treatment rates between people with HIV (PWH) and the general US population is needed to identify any disparities by HIV status.




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The Choice Architecture of School Choice Websites

The authors conducted a randomized factorial experiment to determine how displaying school information to parents in different ways affects what schools they choose for their children in a hypothetical school district.




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MCC Indonesia Nutrition Project Impact Evaluation Final Report

This report presents findings from a 5-year randomized control trial of a $120 million maternal and child health project in Indonesia funded by the Millennium Challenge Corporation. The project sought to improve stunting, along with a host of other pre-, postnatal, and early childhood health outcomes.




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Profile of SSI and DI Beneficiaries with Work Goals and Expectations in 2015

This brief presents an updated profile of work-oriented beneficiaries and compares them to other SSI and DI beneficiaries who are not interested in work.




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Coordinating Parenting Time and Child Support: Experiences and Lessons Learned from Three States (Issue Brief)

This issue brief reports on how three states coordinate the establishment and enforcement of parenting time with child support establishment activities.




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How Much Bias Results if a Quasi-Experimental Design Combines Local Comparison Groups, a Pretest Outcome Measure and Other Covariates?: A Within Study Comparison of Preschool Effects

This study examines when nonexperiments might substitute for experiments that are done in real-world settings in order to learn what works to affect some socially valued outcome.




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Planning Title IV-E Prevention Services: A toolkit for States, Introduction to the Toolkit

This toolkit aims to help states develop a plan for Title IV-E prevention services, and to assist states in planning an array of services to help address substance use, mental health, and parenting issues (“prevention services”).




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Inventory of State-Level Medicaid Policies, Programs, and Initiatives to Improve Maternity Care and Outcomes

Mathematica was contracted by Medicaid and CHIP Payment and Access Commission (MACPAC) to create an updated inventory of state- and territory-level Medicaid policies, programs, or initiatives that are designed to improve the access to, quality of, and outcomes of maternity care services.




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New Report Highlights the MacArthur Foundation’s Grantmaking Legacy to Advance Maternal Health in India

Mathematica released findings from its cumulative review of the John D. and Catherine T. MacArthur Foundation’s Maternal Health Quality of Care (MHQoC) strategy in India.




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As the Global Community Continues to Grapple with COVID-19, Mathematica is Remotely Maintaining our Operations

At Mathematica, our mission has always been to protect and improve public well-being. In this time of increased concern over the Coronavirus Disease 2019 (COVID-19), the health and safety of all Mathematica employees, clients, and partners is our top priority. We are adhering to guidance and best practices issued by health authorities, including the Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO).




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Challenges and Solutions in Evaluation Technical Assistance During Design and Early Implementation

This case study discusses two federal grant initiatives and the evaluation technical assistance (ETA) provided to the grantees.




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Putting Rigorous Evidence Within Reach: Lessons Learned from the New Heights Evaluation

This article uses an evaluation of New Heights, a school-based program for pregnant and parenting teens in the District of Columbia Public Schools, to illustrate how maternal and child health programs can obtain rigorous evaluations at reasonable cost using extant administrative data.




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Testing Municipal Wastewater to Flexibly Monitor Health and Safety

When combined with data on prescriptions filled at local pharmacies, EMS drug overdose calls, and drug seizures by law enforcement, wastewater testing can yield insights into the extent of black-market activity, policing impact on community drug use, and where and when drug overdoses might occur.




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Evaluating a Teen Pregnancy Prevention Program for Middle School Boys

This brief summarizes findings from a random assignment impact study of Wise Guys, a long-standing, widely implemented curriculum designed to help adolescent males make responsible decisions about their sexual behavior.




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The NQF Scientific Methods Panel: Enhancing the Review and Endorsement Process for Performance Measures

In the summer of 2017, the National Quality Forum (NQF) announced the formation of a Scientific Methods Panel (hereafter referred to as “the Panel”) as part of a redesign of its endorsement process.




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Ralanda Nelson Joins Mathematica as Diversity, Equity, and Inclusion Leader

Mathematica is pleased to welcome Ralanda Nelson to its leadership team. A certified diversity executive, she will steer the firm’s diversity, equity, and inclusion efforts and help ensure the employee experience is at the heart of everything we do.




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Effects of Individual and Combined Water, Sanitation, Handwashing, and Nutritional Interventions on Child Respiratory Infections in Rural Kenya: A Cluster-Randomized Controlled Trial

Poor nutrition and hand hygiene are risk factors for acute respiratory infections (ARIs). Safe drinking water and sanitation can reduce exposure to pathogens and encourage healthy immune responses, reducing the risk of ARIs.




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Touchpoints for Addressing Substance Use Issues in Home Visiting: Phase 1 Final Report

This report describes project findings around six touchpoints and four implementation system inputs through which home visiting programs can engage and support families to prevent, identify, and address substance use issues.




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Touchpoints for Addressing Substance Use Issues in Home Visiting: Executive Summary of Phase 1 Final Report

This report describes project findings around six touchpoints and four implementation system inputs through which home visiting programs can engage and support families to prevent, identify, and address substance use issues.




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Diane Rittenhouse Joins Mathematica as a Senior Fellow

Mathematica welcomes Diane Rittenhouse as senior fellow in the Health Unit. Rittenhouse, a family physician, is a nationally known expert at the intersection of social policy and clinical quality.




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Association of Organizational Factors and Physician Practices’ Participation in Alternative Payment Models

Consolidation among physician practices and between hospitals and physician practices has accelerated in the past decade, resulting in higher prices in commercial markets.




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Emerging Findings from the 2012-2017 National Cross-Site Evaluation of the Regional Partnership Grant (RPG) Program (Summary)

This summary presents emerging findings from the national cross-site evaluation for the Regional Partnership Grant program. The program supports partnerships between providers of child welfare and social services to improve the well-being of children impacted by substance abuse.




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Improving Effect Estimates by Limiting the Variability in Inverse Propensity Score Weights

This study describes a novel method to reweight a comparison group used for causal inference, so the group is similar to a treatment group on observable characteristics yet avoids highly variable weights that would limit statistical power.