Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (15585)
- Physical Sciences and Mathematics (14838)
- Plant Sciences (11391)
- Earth Sciences (10980)
- Soil Science (10241)
-
- Agronomy and Crop Sciences (9665)
- Plant Pathology (9449)
- Agricultural Science (9329)
- Plant Biology (9320)
- Weed Science (9280)
- Social and Behavioral Sciences (8795)
- Medicine and Health Sciences (8645)
- Law (6982)
- Engineering (6355)
- Library and Information Science (4644)
- Law Librarianship (3813)
- Civil and Environmental Engineering (2800)
- Medical Specialties (2710)
- Arts and Humanities (2647)
- Transportation Engineering (2397)
- Public Health (2088)
- Education (1531)
- Courts (1389)
- Environmental Sciences (1363)
- Medical Sciences (1221)
- Pharmacy and Pharmaceutical Sciences (1065)
- Mechanical Engineering (1054)
- Materials Science and Engineering (1003)
- Physics (965)
- Sociology (927)
- Keyword
-
- Law libraries (3778)
- Law librarians (3777)
- SEAALL (3766)
- Kentucky (1833)
- Humans (1060)
-
- Animals (726)
- Female (600)
- Male (579)
- Grazing (417)
- Appalachia (357)
- Engineering (351)
- Kentucky transportation (332)
- Mice (329)
- Gas (272)
- Alfalfa (269)
- University of Kentucky (268)
- United States (259)
- Nitrogen (257)
- And Energy; Structural Materials; Sustainability (251)
- Energy Systems; Environmental Indicators and Impact Assessment; Environmental Monitoring; Mining Engineering; Oil (251)
- Public health (246)
- Adult (239)
- Forage (221)
- Obesity (212)
- Middle Aged (209)
- Cattle (208)
- Adolescent (204)
- Aged (191)
- Education (191)
- Aging (188)
- Publication Year
- Publication
-
- IGC Proceedings (1977-2023) (9262)
- Kentucky Law Journal (4652)
- Correspondence (2468)
- Kentucky Transportation Center Research Report (1826)
- World of Coal Ash Proceedings (1708)
-
- 1970-1979 (981)
- University of Kentucky Doctoral Dissertations (871)
- Law Faculty Scholarly Articles (801)
- Physics and Astronomy Faculty Publications (797)
- University of Kentucky Master's Theses (664)
- Scholarship Committee (661)
- DNP Projects (522)
- Markey Cancer Center Faculty Publications (514)
- Kentucky's Annual Forum on Transportation (504)
- MPA/MPP/MPFM Capstone Projects (487)
- Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.) (487)
- disClosure: A Journal of Social Theory (458)
- Kentucky Alfalfa and Stored Forage Conference (389)
- The Kentucky Review (356)
- Pediatrics Faculty Publications (335)
- Forage News (331)
- Journal of Natural Resources & Environmental Law (330)
- Kaleidoscope (330)
- 1980-1989 (327)
- Library Faculty and Staff Publications (322)
- Journals of the General Assembly of the Commonwealth of Kentucky (310)
- Theses and Dissertations--Psychology (305)
- Kentucky Journal of Equine, Agriculture, & Natural Resources Law (302)
- Theses and Dissertations--Music (302)
- Internal Medicine Faculty Publications (293)
- Publication Type
Articles 13621 - 13650 of 52546
Full-Text Articles in Entire DC Network
On The Coupling Relations And Applied Value Of Herdsman And Grassland Ecosystem, Kanglong Luo, Yongfeng Lu
On The Coupling Relations And Applied Value Of Herdsman And Grassland Ecosystem, Kanglong Luo, Yongfeng Lu
IGC Proceedings (1977-2023)
No abstract provided.
Comparison Study On The Development Mode Of Nomadic Civilizations In Mongolia Plateau, Jin Yi, Jilqun Chen, Qimuge Wuren
Comparison Study On The Development Mode Of Nomadic Civilizations In Mongolia Plateau, Jin Yi, Jilqun Chen, Qimuge Wuren
IGC Proceedings (1977-2023)
No abstract provided.
Association Of Nonacute Opioid Use And Cardiovascular Diseases: A Scoping Review Of The Literature, Jade H. Singleton, Erin L. Abner, Peter D. Akpunonu, Anna M. Kucharska-Newton
Association Of Nonacute Opioid Use And Cardiovascular Diseases: A Scoping Review Of The Literature, Jade H. Singleton, Erin L. Abner, Peter D. Akpunonu, Anna M. Kucharska-Newton
Epidemiology and Environmental Health Faculty Publications
BACKGROUND
In this scoping review, we identified and reviewed 23 original articles from the PubMed database that investigated the relationship between nonacute opioid use (NOU) and cardiovascular outcomes.
METHODS AND RESULTS
We defined NOU to include both long-term opioid therapy and opioid use disorder. We summarized the association between NOU and 5 classes of cardiovascular disease, including infective endocarditis, coronary heart disease (including myocardial infarction), congestive heart failure, cardiac arrythmia (including cardiac arrest), and stroke. The most commonly studied outcomes were coronary heart disease and infective endocarditis. There was generally consistent evidence of a positive association between community prevalence of …
Identification Of Novel And Rare Variants Associated With Handgrip Strength Using Whole Genome Sequence Data From The Nhlbi Trans-Omics In Precision Medicine (Topmed) Program, Chloé Sarnowski, Han Chen, Mary L. Biggs, Sylvia Wassertheil-Smoller, Jan Bressler, Marguerite R. Irvin, Kathleen A. Ryan, David Karasik, Donna K. Arnett, L. Adrienne Cupples, David W. Fardo, Stephanie M. Gogarten, Benjamin D. Heavner, Deepti Jain, Hyun Min Kang, Charles Kooperberg, Arch G. Mainous, Braxton D. Mitchell, Alanna C. Morrison, Jeffrey R. O'Connell
Identification Of Novel And Rare Variants Associated With Handgrip Strength Using Whole Genome Sequence Data From The Nhlbi Trans-Omics In Precision Medicine (Topmed) Program, Chloé Sarnowski, Han Chen, Mary L. Biggs, Sylvia Wassertheil-Smoller, Jan Bressler, Marguerite R. Irvin, Kathleen A. Ryan, David Karasik, Donna K. Arnett, L. Adrienne Cupples, David W. Fardo, Stephanie M. Gogarten, Benjamin D. Heavner, Deepti Jain, Hyun Min Kang, Charles Kooperberg, Arch G. Mainous, Braxton D. Mitchell, Alanna C. Morrison, Jeffrey R. O'Connell
Epidemiology and Environmental Health Faculty Publications
Handgrip strength is a widely used measure of muscle strength and a predictor of a range of morbidities including cardiovascular diseases and all-cause mortality. Previous genome-wide association studies of handgrip strength have focused on common variants primarily in persons of European descent. We aimed to identify rare and ancestry-specific genetic variants associated with handgrip strength by conducting whole-genome sequence association analyses using 13,552 participants from six studies representing diverse population groups from the Trans-Omics in Precision Medicine (TOPMed) Program. By leveraging multiple handgrip strength measures performed in study participants over time, we increased our effective sample size by 7-12%. Single-variant …
Primary Bilateral Ovarian Artery Embolization For Uterine Leiomyomatosis In The Setting Of A Rare Anatomic Variant - Hypoplastic Uterine Arteries, Merve Ozen, Shezaan Momin, Charles Ben Myers, Mark Hoffman, Driss Raissi
Primary Bilateral Ovarian Artery Embolization For Uterine Leiomyomatosis In The Setting Of A Rare Anatomic Variant - Hypoplastic Uterine Arteries, Merve Ozen, Shezaan Momin, Charles Ben Myers, Mark Hoffman, Driss Raissi
Radiology Faculty Publications
We present the case of a 50-year-old female who underwent bilateral ovarian artery embolization for uterine fibroids in the setting of hypoplastic uterine arteries. Ovarian artery embolization is usually conducted during uterine artery embolization for fibroids to increase the procedure success when ovarian feeders are seen. The bilateral ovarian artery embolization is rarely performed due to fears of amenorrhea and early menopause from decreased blood supply to both ovaries. According to our knowledge, this the first case report describing primary bilateral ovarian artery embolization in the setting of a rare anatomic variant- hypoplastic uterine arteries. The patient had complete resolution …
Contribution Of Common Grazing Lands To People's Livelihood In Semi‐Arid India, A. K. Misra, Md Osman, G. R. Korwar
Contribution Of Common Grazing Lands To People's Livelihood In Semi‐Arid India, A. K. Misra, Md Osman, G. R. Korwar
IGC Proceedings (1977-2023)
No abstract provided.
Mongolian Nomadic Culture And Ecological Reconstruction In The Agro‐Pastoral Mosaic Zone In Northern China, Munkhdalai A. Zhang
Mongolian Nomadic Culture And Ecological Reconstruction In The Agro‐Pastoral Mosaic Zone In Northern China, Munkhdalai A. Zhang
IGC Proceedings (1977-2023)
No abstract provided.
A Forage Book Of International Impact, Garry D. Lacefield, Donald M. Ball, Carl S. Hoveland, Donald L. Armstrong
A Forage Book Of International Impact, Garry D. Lacefield, Donald M. Ball, Carl S. Hoveland, Donald L. Armstrong
IGC Proceedings (1977-2023)
No abstract provided.
Effects Of Treatments On Fermentation Quality And Nutrition Ingredient Of Small Reed, Yusup Yusanjan, Ainiwaer Aishan, Guangwei Zhao
Effects Of Treatments On Fermentation Quality And Nutrition Ingredient Of Small Reed, Yusup Yusanjan, Ainiwaer Aishan, Guangwei Zhao
IGC Proceedings (1977-2023)
No abstract provided.
Herbaceous And Woody Vegetation Composition Dry Matter Production And Range Condition In Lowlands Of Bale, Southeast Ethiopia, Teshome Abate, Abule Ebro, Lisanework Nigatu
Herbaceous And Woody Vegetation Composition Dry Matter Production And Range Condition In Lowlands Of Bale, Southeast Ethiopia, Teshome Abate, Abule Ebro, Lisanework Nigatu
IGC Proceedings (1977-2023)
No abstract provided.
Effects Of Two Lactic Acid Bacteria Strains On The Fermentation And Aerobic Stability Of Corn Silage, J. G. Zhang, Y. Cai, H. Kawamoto, Y. Aoki, A. Yamad, M. Kamo
Effects Of Two Lactic Acid Bacteria Strains On The Fermentation And Aerobic Stability Of Corn Silage, J. G. Zhang, Y. Cai, H. Kawamoto, Y. Aoki, A. Yamad, M. Kamo
IGC Proceedings (1977-2023)
No abstract provided.
Biomedical Activities Of Derivatives Of Polysaccharides Extracted From Astragalus Membranaceus, Gereltu Borjihan
Biomedical Activities Of Derivatives Of Polysaccharides Extracted From Astragalus Membranaceus, Gereltu Borjihan
IGC Proceedings (1977-2023)
No abstract provided.
Ground Ear Maize As An Alternative Forage Source For Beef Cattle In Ireland, P. O'Hanlon, D. Kenny, Tommy M. Boland, G. P. Keane, M. Bridget Lynch
Ground Ear Maize As An Alternative Forage Source For Beef Cattle In Ireland, P. O'Hanlon, D. Kenny, Tommy M. Boland, G. P. Keane, M. Bridget Lynch
IGC Proceedings (1977-2023)
No abstract provided.
Large-Scale Solar Pv And Battery Energy Storage Model Study On A Proposed Benchmark Transmission System, Gerald W. Bankes Ii, Oluwaseun M. Akeyo, Dan M. Ionel
Large-Scale Solar Pv And Battery Energy Storage Model Study On A Proposed Benchmark Transmission System, Gerald W. Bankes Ii, Oluwaseun M. Akeyo, Dan M. Ionel
Power and Energy Institute of Kentucky Presentations
Problem Formulation
- The move toward renewable energy sources has led to an increase in the penetration of inverter-based resources onto the transmission system
- Most literature discusses two types of models of IBRs, time-average models, which do not capture high-frequency switching effects, and detailed switching models, which are computationally expensive
- The IEEE 12-Bus test system was modified in PSCADTM/EMTDCTM to include a 100 MW PV facility and 100 MW battery energy storage system (BESS) connected at bus 2
- The PV facility and BESS are modelled using a proposed dynamic inverter-based resource module
- A demonstration of the module was performed using two …
Chance Elections, Social Distancing Restrictions, And Kentucky's Early Covid-19 Experience, Charles J. Courtemanche, Joseph Garuccio, Anh Le, Joshua C. Pinkston, Aaron Yelowitz
Chance Elections, Social Distancing Restrictions, And Kentucky's Early Covid-19 Experience, Charles J. Courtemanche, Joseph Garuccio, Anh Le, Joshua C. Pinkston, Aaron Yelowitz
Economics Faculty Publications
Early in the pandemic, slowing the spread of novel coronavirus disease 2019 (COVID-19) relied on non-pharmaceutical interventions. All U.S. states adopted social-distancing restrictions in March and April of 2020, though policies varied both in timing and scope. Compared to states with Democratic governors, those with Republican governors often adopted measures for shorter durations and with greater resistance from their residents. In Kentucky, an extremely close gubernatorial election immediately prior to the discovery of SARS-CoV-2 replaced a Republican incumbent with a Democrat, despite Republicans easily winning all other statewide races. This chance election result offers a unique opportunity to examine the …
Forage News [2021-07], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News [2021-07], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News
No abstract provided.
Trends In Land Surface Phenology Across The Conterminous United States (1982-2016) Analyzed By Neon Domains, Liang Liang, Geoffrey M. Henebry, Lingling Liu, Xiaoyang Zhang, Li-Chih Hsu
Trends In Land Surface Phenology Across The Conterminous United States (1982-2016) Analyzed By Neon Domains, Liang Liang, Geoffrey M. Henebry, Lingling Liu, Xiaoyang Zhang, Li-Chih Hsu
Geography Faculty Publications
Tracking phenological change in a regionally explicit context is a key to understanding ecosystem status and change. The current study investigated long-term trends of satellite-observed land surface phenology (LSP) in the 17 National Ecological Observatory Network (NEON) domains across the conterminous United States (CONUS). Characterization of LSP trends was based on a high temporal resolution (3-d) time series of the two-band enhanced vegetation index (EVI2) derived from a long-term data record (LTDR) of the Advanced Very High Resolution Radiometer (AVHRR) and the Moderate Resolution Imaging Spectroradiometer (MODIS). We identified significant trend patterns in LSP and their seasonal climate and land …
Co-Simulation Of Electric Power Distribution And Buildings With Energyplus And Opendss, Evan S. Jones, Dan M. Ionel
Co-Simulation Of Electric Power Distribution And Buildings With Energyplus And Opendss, Evan S. Jones, Dan M. Ionel
Power and Energy Institute of Kentucky Presentations
Problem Formulation
- Need for accurate load modeling that incorporates human comfort into community-level demand response (DR) studies
- Achievable through co-simulation of advanced digital twins for buildings with EnergyPlus and distribution systems with OpenDSS
Beyond The Great Power Competition Narrative: Exploring Labor Politics And Resistance Behind Ai Innovation In China, Yujia He, Hong Shen
Beyond The Great Power Competition Narrative: Exploring Labor Politics And Resistance Behind Ai Innovation In China, Yujia He, Hong Shen
Patterson School of Diplomacy and International Commerce Faculty Publications
No abstract provided.
Monetary Incentives For Producing Counterfeit, Adulterated, And Misbranded Medicine: Case Studies And Examples, Heather R. Campbell, Robert A. Lodder
Monetary Incentives For Producing Counterfeit, Adulterated, And Misbranded Medicine: Case Studies And Examples, Heather R. Campbell, Robert A. Lodder
Pharmaceutical Sciences Faculty Publications
Background: Pharmaceutical fraud can be very profitable. Those working in pharmaceuticals are in a tempting position as the nature of the product and supply is complex, making detection of fraud difficult and expensive. However, a reliable pharmaceutical supply can often be a life-or-death situation for patients. Thus, when detection of fraud occurs, a Regulator's Dilemma often emerges (recall a drug for which a supplier is the sole source, or allow a substandard product to be sold)—generally resulting in pharmaceutical companies receiving minimal penalties even for the worst acts. Despite pharmaceutical companies' unique leverage over regulators and profitability, studies are rare …
Southeastern Law Librarian Summer 2021, Seaall
Chinese-Invested Smart City Development In Southeast Asia - How Resilient Are Urban Megaprojects In The Age Of Covid-19?, Yujia He, Angela Tritto
Chinese-Invested Smart City Development In Southeast Asia - How Resilient Are Urban Megaprojects In The Age Of Covid-19?, Yujia He, Angela Tritto
Diplomacy and International Commerce Reports
Smart cities are emerging as major engines for deploying intelligent systems to enhance urban development and contribute to the UN 2030 Sustainable Development Goals (UN SDG). In developing economies facing rapid urbanization and technological change, new cities are being built with smart technologies and ideals, complete with business districts and residential, retail, entertainment, medical, education facilities to entice businesses and talents to relocate. Governments tout the potential of such “greenfield” smart cities for innovation and sustainability. Yet such urban megaprojects are often extremely expensive, prompting governments to partner with private players such as property developers, investors, and tech firms to …
Home Energy Management System For Coordinated Pv And Hvac Controls Based On Ai Forecasting, Huangjie Gong, Rosemary E. Alden, Dan M. Ionel
Home Energy Management System For Coordinated Pv And Hvac Controls Based On Ai Forecasting, Huangjie Gong, Rosemary E. Alden, Dan M. Ionel
Power and Energy Institute of Kentucky Presentations
Introduction
- This HEMS serves to transform HVAC system demand into a schedulable load bank or “dispatchable load” through controls based on day ahead forecasts
- Within this poster, a complete structure from data acquisition to day-ahead load scheduling is proposed
- For the purpose of study, measured data is used in place of forecasts to showcase best case results.
Storytime Programs As Mirrors, Windows, And Sliding Glass Doors? Addressing Children’S Needs Through Diverse Book Selection, Maria Cahill, Erin E. Ingram, Soohyung Joo
Storytime Programs As Mirrors, Windows, And Sliding Glass Doors? Addressing Children’S Needs Through Diverse Book Selection, Maria Cahill, Erin E. Ingram, Soohyung Joo
Information Science Faculty Publications
Much research suggests that exposure to diverse books that feature the lived experiences of people with marginalized or underrepresented identities influences how children perceive their own value and the significance of others who do and do not look like them. Library associations have recently called for greater attention to issues of diversity, equity, and inclusion to be reflected across all aspects of library services and programs. The purpose of this study was to examine the print materials used in public library storytime programs to identify the extent to which storytime exposes children to diverse people. Results indicate that, across all …
Aggregated Generic Load Curve For Residential Electric Water Heaters, Huangjie Gong, Oluwaseun M. Akeyo, Tim Rooney, Brian T. Branecky, Dan M. Ionel
Aggregated Generic Load Curve For Residential Electric Water Heaters, Huangjie Gong, Oluwaseun M. Akeyo, Tim Rooney, Brian T. Branecky, Dan M. Ionel
Power and Energy Institute of Kentucky Faculty Publications
Advanced control techniques may be used to regulate the operation of residential appliances to establish a virtual power plant. The electric water heater may be regarded as a “uni-directional battery” and a major component of a hybrid residential energy storage system. One of the main constraints of implementing demand response with EWH relates to the unpredictable customer behavior, which influences the domestic water tank temperature as well as the EWH operation cycle. This study analyzes the operation of multiple water heaters and develops an aggregated generic water heater load curve for the average residential customer based on experimental data retrieved …
Artificial Intelligence-Based Short-Term Electric Load Forecasts For Experimental Smart Homes Including Hvac And Pv Components, Rosemary E. Alden, Cristinel Ababei, Dan M. Ionel
Artificial Intelligence-Based Short-Term Electric Load Forecasts For Experimental Smart Homes Including Hvac And Pv Components, Rosemary E. Alden, Cristinel Ababei, Dan M. Ionel
Power and Energy Institute of Kentucky Presentations
Problem Formulation
- To predict electric load of the total average power as well as individual components for two residencies from experimental data
- Individual residential forecasting is difficult due to high variability of appliance usage and random human behavior influences
- Separate the HVAC load from total load as a desired profile using weather relationship and minimum HVAC load at night
- Data driven approach to reduce the amount of information about the home required
Awegnn: Auto-Parametrized Weighted Element-Specific Graph Neural Networks For Molecules., Timothy Szocinski, Duc Duy Nguyen, Guo-Wei Wei
Awegnn: Auto-Parametrized Weighted Element-Specific Graph Neural Networks For Molecules., Timothy Szocinski, Duc Duy Nguyen, Guo-Wei Wei
Mathematics Faculty Publications
While automated feature extraction has had tremendous success in many deep learning algorithms for image analysis and natural language processing, it does not work well for data involving complex internal structures, such as molecules. Data representations via advanced mathematics, including algebraic topology, differential geometry, and graph theory, have demonstrated superiority in a variety of biomolecular applications, however, their performance is often dependent on manual parametrization. This work introduces the auto-parametrized weighted element-specific graph neural network, dubbed AweGNN, to overcome the obstacle of this tedious parametrization process while also being a suitable technique for automated feature extraction on these internally complex …
Pharmacotherapy In Coronavirus Disease 2019 And Risk Of Secondary Infections: A Single-Center Case Series And Narrative Review, Michael Behal, Brooke Barlow, Breanne Mefford, Melissa L. Thompson Bastin, J. Chris Donaldson, Melanie Laine, Brittany D. Bissell
Pharmacotherapy In Coronavirus Disease 2019 And Risk Of Secondary Infections: A Single-Center Case Series And Narrative Review, Michael Behal, Brooke Barlow, Breanne Mefford, Melissa L. Thompson Bastin, J. Chris Donaldson, Melanie Laine, Brittany D. Bissell
Pharmacy Practice and Science Faculty Publications
OBJECTIVES: Since the onset of the coronavirus disease 2019 pandemic, immune modulators have been considered front-line candidates for the management of patients presenting with clinical symptoms secondary to severe acute respiratory syndrome coronavirus 2 infection. Although heavy emphasis has been placed on early clinical efficacy, we sought to evaluate the impact of pharmacologic approach to coronavirus disease 2019 within the ICU on secondary infections and clinical outcomes.
DATA SOURCES: PubMed (inception to March 2021) database search and manual selection of bibliographies from selected articles.
STUDY SELECTION AND DATA EXTRACTION: Articles relevant to coronavirus disease 2019, management of severe acute respiratory …
Content Analysis Of Digital Media Coverage Of The Human Papillomavirus Vaccine School-Entry Requirement Policy In Puerto Rico, Vivian Colón-López, Vilnery Rivera-Figueroa, Glizette O. Arroyo-Morales, Diana T. Medina-Laabes, Roxana Soto-Abreu, Manuel Rivera-Encarnación, Olga L. Díaz-Miranda, Ana P. Ortiz, Katelyn B. Wells, Coralia Vázquez-Otero, Pamela C. Hull
Content Analysis Of Digital Media Coverage Of The Human Papillomavirus Vaccine School-Entry Requirement Policy In Puerto Rico, Vivian Colón-López, Vilnery Rivera-Figueroa, Glizette O. Arroyo-Morales, Diana T. Medina-Laabes, Roxana Soto-Abreu, Manuel Rivera-Encarnación, Olga L. Díaz-Miranda, Ana P. Ortiz, Katelyn B. Wells, Coralia Vázquez-Otero, Pamela C. Hull
Behavioral Science Faculty Publications
BACKGROUND: In August 2018, Puerto Rico (PR) became the 4th state or territory in the United States to adopt a human papillomavirus (HPV) vaccine school-entry requirement, for students 11-12 years old. Evidence suggests that the content of media coverage may impact people's perception of HPV vaccine and their willingness to vaccinate. This study aimed to analyze the content of digital news coverage related to the implementation of the policy in PR.
METHODS: A content review was conducted of digital media published from January 2017 through December 2018. The content reviewed was carried out in two steps: 1) creating a matrix …
Drag Queen Storytimes: Public Library Staff Perceptions And Experiences, Sarah C. Barriage, Vanessa Kitzie, Diana Floegel, Shannon M. Oltmann
Drag Queen Storytimes: Public Library Staff Perceptions And Experiences, Sarah C. Barriage, Vanessa Kitzie, Diana Floegel, Shannon M. Oltmann
Information Science Faculty Publications
Since their first appearances in public libraries, drag queen storytimes (DQS) have frequently been featured in news stories and professional literature. These events feature drag performers leading various aspects of otherwise typical storytimes, including reading books, singing songs, and leading crafts and other activities with young children and their families.