Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 78001 - 78030 of 719510

Full-Text Articles in Entire DC Network

Urban Elementary Teachers’ Experiences In Maine Managing The Paradoxical Tension To Both Deliver Grade-Level Instruction And Customize Support: A Qualitative Phenomenological Study, Laura Graves Aug 2023

Urban Elementary Teachers’ Experiences In Maine Managing The Paradoxical Tension To Both Deliver Grade-Level Instruction And Customize Support: A Qualitative Phenomenological Study, Laura Graves

Doctor of Education Program Dissertations

ABSTRACT

To address historic levels of students’ unfinished learning, teachers must balance two competing objectives: maintaining grade-level instruction so that students do not fall further behind, while simultaneously customizing support so that students can rise to grade-level. This complex instruction is particularly important for teachers serving students from communities under pressure who were disproportionately impacted by the COVID-19 pandemic and historic barriers to education. The problem addressed in this study was the lack of understanding of urban elementary teachers’ experiences as they managed the paradoxical tension to deliver grade-level instruction to the entire class while customizing support according to individual …


Volume 20, Issue 1 Aug 2023

Volume 20, Issue 1

Medical Muse

No abstract provided.


Part 2: Proposed Buckling Factor For Columns In Braced And Unbraced Frames With Composite Girders, S.A. Eltawil, N.S. Mahmoud, S.M. Abdrabou Aug 2023

Part 2: Proposed Buckling Factor For Columns In Braced And Unbraced Frames With Composite Girders, S.A. Eltawil, N.S. Mahmoud, S.M. Abdrabou

Mansoura Engineering Journal

The influence of composite girders on the modified buckling factor for columns was investigated in both braced and unbraced frames. The composite girders' end conditions were represented as rigid and hinged . Furthermore, based on the proposed stiffness parameter, the derived formulation follows the same assumptions as the standard effective length factor (K-factor). Moreover, the suggested buckling factor equations for composite girders in braced and unbraced frames were obtained using the slope-deflection method. Concerning the unbraced frame, the proposed buckling factor of columns restrained by the composite girder improves the effective length calculation and makes for a more accurate and …


Digital Game-Based Learning Activities In Primary Grade Mathematics Achievement, Chris Anderson Aug 2023

Digital Game-Based Learning Activities In Primary Grade Mathematics Achievement, Chris Anderson

Graduate Teacher Education

The research paper has gathered and analyzed research from online databases to find how digital game-based learning activities were used in mathematics and how it influences the affective domains of academic engagement, motivation, and academic self-perception. The paper aims to inform primary educators of the benefits and limitations of digital game-based activities in primary mathematics. Digital game-based learning has positively influenced students' academic engagement through interaction, play, and effort, which had a positive effect on their mathematical achievement. Increased motivation felt by students when doing digital game-based activities resulted in higher mathematical achievement and an increase in learning more mathematics …


Mining-Induced Shear Deformation And Permeability Evolution Law Of Crushed Rock Mass In Fault Zone, Li Qiang, Ma Dan, Zhang Jixiong, Liu Yong, Hou Wentao Aug 2023

Mining-Induced Shear Deformation And Permeability Evolution Law Of Crushed Rock Mass In Fault Zone, Li Qiang, Ma Dan, Zhang Jixiong, Liu Yong, Hou Wentao

Coal Geology & Exploration

To explore the mechanism of water inrush induced by fault activation under mining, experimental studies were conducted on the shear deformation and permeability evolution of crushed rock mass in fault zone. Specifically, a set of compression-shear-seepage test system for crushed rock mass was designed according to the principle of fluid-solid coupling, with the coupling process of shear deformation and seepage realized. On this basis, the shear-seepage coupling test was carried out for the crushed rock mass under the influence of multiple factors. Thus, the influence of particle size distribution and initial porosity of crushed rock mass on porosity and permeability …


New Faculty Guide, 2023-2024, University Of Mississippi. Provost Aug 2023

New Faculty Guide, 2023-2024, University Of Mississippi. Provost

New Faculty

No abstract provided.


Quantification And Reduction Of Uncertainty In Seismic Resilience Assessment For A Roadway Network, Vishnupriya Jonnalagadda, Ji Yun Lee, Seyed Hooman Ghasemi Aug 2023

Quantification And Reduction Of Uncertainty In Seismic Resilience Assessment For A Roadway Network, Vishnupriya Jonnalagadda, Ji Yun Lee, Seyed Hooman Ghasemi

Henry M. Rowan College of Engineering Departmental Research

The nation’s transportation systems are complex and are some of the highest valued and largest public assets in the United States. As a result of repeated natural hazards and their significant impact on transportation functionality and the socioeconomic health of communities, transportation resilience has gained increasing attention in recent years. Previous studies on transportation resilience have heavily emphasized network functionality during and/or following a scenario hazard event by implicitly assuming that sufficient knowledge of structural capacity and environmental/service conditions is available at the time of an extreme event. However, such assumptions often fail to consider uncertainties that arise when an …


2008 Great Day Program, State University Of New York At Geneseo Aug 2023

2008 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Second Annual GREAT Day.


2009 Great Day Program, State University Of New York At Geneseo Aug 2023

2009 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Third Annual GREAT Day.


2012 Great Day Program, State University Of New York At Geneseo Aug 2023

2012 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Sixth Annual GREAT Day.


2015 Great Day Program, State University Of New York At Geneseo Aug 2023

2015 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Ninth Annual GREAT Day.


2016 Great Day Program, State University Of New York At Geneseo Aug 2023

2016 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Tenth Annual GREAT Day.


2017 Great Day Program, State University Of New York At Geneseo Aug 2023

2017 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Eleventh Annual GREAT Day.


2020 Great Day Program, State University Of New York At Geneseo Aug 2023

2020 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Fourteenth Annual GREAT Day.


2021 Great Day Program, State University Of New York At Geneseo Aug 2023

2021 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Fifteenth Annual GREAT Day.


2022 Great Day Program, State University Of New York At Geneseo Aug 2023

2022 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Sixteenth Annual GREAT Day.


2023 Great Day Program, State University Of New York At Geneseo Aug 2023

2023 Great Day Program, State University Of New York At Geneseo

GREAT Day Programs

SUNY Geneseo’s Seventeenth Annual GREAT Day. Geneseo Recognizing Excellence, Achievement & Talent Day is a college-wide symposium celebrating the creative and scholarly endeavors of our students. http://www.geneseo.edu/great_day


2023 Ursinus College Academic Convocation Program, Ursinus College Aug 2023

2023 Ursinus College Academic Convocation Program, Ursinus College

Academic Convocation Programs

This Ursinus College Academic Convocation program lists speakers and events for the opening of the 2023 academic year.


Stimulation Effect Of Pulsed Ultrasonic Excitation On Coal Pores With Full-Scale Pore Sizes, Lin Haifei, Qiu Yue, Han Shuangze, Gao Haidong, Yang Erhao, Wang Ruizhe, Yan Min Aug 2023

Stimulation Effect Of Pulsed Ultrasonic Excitation On Coal Pores With Full-Scale Pore Sizes, Lin Haifei, Qiu Yue, Han Shuangze, Gao Haidong, Yang Erhao, Wang Ruizhe, Yan Min

Coal Geology & Exploration

This study aims to further investigate the stimulation effect of pulsed ultrasonic excitation on coal pore structures. Using an ultrasonic excitation test system for gas-containing coals, this study conducted ultrasonic excitation tests on coals under continuous and interactive pulses with ultrasonic power of 800 W and 1000 W. Through low-pressure CO2 adsorption tests, low-temperature nitrogen adsorption tests, and the mercury injection capillary pressure (MICP) tests, this study explored the evolutionary patterns of parameters of various coal pores with full-scale pore sizes, including macropores (> 50 nm), mesopores (2‒50 nm), and micropores (< 2 nm). The test results are as follows: (1) Pulsed ultrasonic waves can expand coal pores. The pore volume of coals was primarily provided by micropores and macropores, with mesopores representing a small proportion. The specific surface area of various coal pores was in the order of micropores > mesopores > macropores. (2) Compared with those having …


The Library & Generative Ai, Nat Gustafson-Sundell, Mark Mccullough Aug 2023

The Library & Generative Ai, Nat Gustafson-Sundell, Mark Mccullough

Library Services Publications

A demonstration of several AI tools, including ChatGPT, ChatPDF, Consensus, and more. The focus of the session is on potential student uses of the tools and related library initiatives, so we address the limits of ChatGPT as an information source. Librarians can help students learn how to use these tools responsibly and provide leadership on campus as AI is integrated into assignments.


The Importance Of Recruitment And Retention In Heliophysics: It's Not Just A Pipeline Problem, A. J. Halford, C. M. Bard, A. G. Burrell, R. M. Mcgranaghan, L. B. Wilson Iii, M. Jones Jr, C. Dong, L. Wang, T. I. Pulkkinen, Niescja E. Turner, M. W. Liemohn, J. Klenzing Aug 2023

The Importance Of Recruitment And Retention In Heliophysics: It's Not Just A Pipeline Problem, A. J. Halford, C. M. Bard, A. G. Burrell, R. M. Mcgranaghan, L. B. Wilson Iii, M. Jones Jr, C. Dong, L. Wang, T. I. Pulkkinen, Niescja E. Turner, M. W. Liemohn, J. Klenzing

Physics and Astronomy Faculty Research

A major obstacle in cultivating a robust Heliophysics (and broader scientific) community is the lack of diversity throughout science, technology, engineering, and mathematics (STEM) fields. For many years, this has been understood as a “leaky pipeline” analogy, in which predominately minority students initially interested in STEM gradually fall (or are pushed) out of the field on their way to a scientific research position. However, this ignores critical structural and policy issues which drive even later career Ph.D.s out of a career in Heliophysics. We identify here several systemic problems that inhibit many from participating fully in the Heliophysics community, including …


Table Of Contents, The Editors Aug 2023

Table Of Contents, The Editors

Coal Geology & Exploration

No abstract provided.


Hydrodynamic Voltammetry Of Fe2+/3+ In Aqueous Deep Eutectic Solvents Towards Redox Flow Batteries, Desiree Mae Prado, Xiaochen Shen, Robert Savinell, Clemens Burda Aug 2023

Hydrodynamic Voltammetry Of Fe2+/3+ In Aqueous Deep Eutectic Solvents Towards Redox Flow Batteries, Desiree Mae Prado, Xiaochen Shen, Robert Savinell, Clemens Burda

Faculty Scholarship

Deep eutectic solvents (DESs) have recently attracted much attention as potential green electrolyte solvents for redox flow batteries. DESs are considered not only as environmentally sustainable but also economically attractive electrolytes because they can be resourced from biological feedstock (alcohols, urea, choline) and are earth-abundant and of low toxicity. Despite these advantages, DESs still have limitations in important aspects such as reactant and ion transport, which is inhibited due to hydrogen-bonding-induced viscosity. Thus, improving the transport properties of redox species in DESs is essential. In addition, we explore the quantitative addition of water to ethaline (a 1:2 choline chloride: ethylene …


Two New Maneuvering Target Simulation Methods, Yingxuan Li, Zhongxun Wang, Yunlong Dong Aug 2023

Two New Maneuvering Target Simulation Methods, Yingxuan Li, Zhongxun Wang, Yunlong Dong

Journal of System Simulation

Abstract: To verify the performance of maneuvering target tracking algorithm, it's necessary to build a complex motion simulation model similar to the actual target motion situation. A simulation model of maneuvering target with controllable time correlation coefficient is constructed based on the idea of Singer model, and the suitability of Singer's maneuvering target tracking algorithm is verified when the time correlation coefficient does not match. Aiming at the problem that the traditional coordinated turning model only considers the change of normal acceleration, and the tangential acceleration is always assumed to be 0, which is not highly consistent with the actual …


Phosphorus-Carrying Cascade Molecules: Inner Architecture To Biomedical Applications, Anbazhagan Thirumalai, Noureddine Elboughdiri, Karthick Harini, Koyeli Girigoswami, Agnishwar Girigoswami Aug 2023

Phosphorus-Carrying Cascade Molecules: Inner Architecture To Biomedical Applications, Anbazhagan Thirumalai, Noureddine Elboughdiri, Karthick Harini, Koyeli Girigoswami, Agnishwar Girigoswami

Turkish Journal of Chemistry

Cascade molecules are nearly uniform-sized macromolecules of small molecules or linear polymer cores built around symmetric branching units. A wide range of biological properties can be achieved with phosphorus-containing dendrimers, depending on their terminal functions, ranging from biomaterials to imaging, drug delivery, and acting as a drug by themselves. This feature article presents significant examples of phosphorus-containing dendrimers used to develop biochips, support cell cultures, carry or deliver biomacromolecules and drugs, bioimaging, and combinational benefits. Because of the thermal stability, ferrocene function, and physical and chemical properties of phosphorus, dendrimers show greater rigidity, mobility, and strength. These dendrimers will be …


Theoretical Analysis Of Oled Performances Of Some Aromatic Nitrogen-Containing Ligands, Mustafa Eli̇k Aug 2023

Theoretical Analysis Of Oled Performances Of Some Aromatic Nitrogen-Containing Ligands, Mustafa Eli̇k

Turkish Journal of Chemistry

It is well-known that tris(8-hydroxyquinoline) aluminum (Alq3) complex and N,N'diphenyl-N,N'-bis(3-methylphenyl)-1,1'- diphenyl-4,4'-diamine compound (TPD) are widely used as electron transfer material (ETL) and hole transfer material (HTL) in organic light emitting diode (OLED) structure, respectively. Considering the reference materials, in the present work, the OLED performances of some cyclic aromatic structures such as 4,4'azopyridine [AZPY], 4,4'-bipyridine [BIPY], 1,2-bis[4'-(4-methylphenyl)2,2':6'2' '-terpyridin6-yl]ethyne (BISTERPY), 5,5'-diamino-2,2'-bipyridine (DABP), dipyrido[3,2-a:2',3'c]phenazine (DPP), 4,7-phenanthroline (PHEN) including nitrogen atom have been theoretically analyzed. It is important to note that B3LYP/6-31G(d) and B3LYP/TZP levels of the theory were taken into account for the calculations about monomeric and dimeric structures, respectively. Additionally, the …


Preparation And Application Of Caffeic Acid Imprinted Polymer, Şeyda Karaman Ersoy, Esma Tütem, Kevser Sözgen Başkan, Mustafa Reşat Apak Aug 2023

Preparation And Application Of Caffeic Acid Imprinted Polymer, Şeyda Karaman Ersoy, Esma Tütem, Kevser Sözgen Başkan, Mustafa Reşat Apak

Turkish Journal of Chemistry

In the present study, molecularly imprinted polymers were synthesized using caffeic acid (CA) as a template molecule and then used for the extraction of CA and chlorogenic acid (CLA) from complex matrices. Syntheses were carried out in tetrahydrofuran as porogenic solvent using 4-vinyl pyridine, methacrylic acid, acrylamide, and 1-vinyl imidazole as monomers, ethylene glycol dimethacrylate as crosslinker and 2,2'-azobisisobutyronitrile as initiator. In polymerization processes, different ratios of the template:monomer:crosslinker (T:M:CrL) were used to obtain the most suitable polymer. Caffeic acid:4-vinylpiridine:ethylene glycol dimethacrylate's 1:4:16 mole ratio of MIP was determined as the most convenient polymer for CA recognition. In addition, nonimprinted …


In Vitro Antioxidant Activity Of Alginate Nanoparticles Encapsulating The Aqueous Extract Of Coccinia Grandis L., Walimuni Nayomi Deshani De Silva, Anoja Priyadarshani Attanayake, Liyanage Dona Ashanti Menuka Arawwawala, Desiree Nedra Karunaratne, Geethi Kaushalya Pamunuwa Aug 2023

In Vitro Antioxidant Activity Of Alginate Nanoparticles Encapsulating The Aqueous Extract Of Coccinia Grandis L., Walimuni Nayomi Deshani De Silva, Anoja Priyadarshani Attanayake, Liyanage Dona Ashanti Menuka Arawwawala, Desiree Nedra Karunaratne, Geethi Kaushalya Pamunuwa

Turkish Journal of Chemistry

Bioactive compounds in medicinal plants are more susceptible to preventing oxidative stress. Encapsulation of herbal extracts has empowered the properties and characteristics of bioactive compounds. Nanoencapsulation allows the enhancement of the stability of extracts and targeted drug delivery. The present study aims to determine the antioxidant activity of alginate nanoparticles encapsulating the aqueous extract of Coccinia grandis L. (Family: Cucurbitaceae). The aqueous extract of C. grandis (AqCG) was prepared by using ultrasonication (40 ° C, 20 min, 40 kHz) followed by refluxing (2½ h). The prepared AqCG (1-5 mg/mL) encapsulated alginate nanoparticles were synthesized by ionic gelation with the addition …


Effects Of Zsm-5 Zeolite On Pyrolysis Of Polystyrene: From Stabilizing To Catalyzing, Qing Yuan Ma, Zhen Huang, Xuan Ren, Jia Jia Zhao, Fu Chen, Li Jun Teng Aug 2023

Effects Of Zsm-5 Zeolite On Pyrolysis Of Polystyrene: From Stabilizing To Catalyzing, Qing Yuan Ma, Zhen Huang, Xuan Ren, Jia Jia Zhao, Fu Chen, Li Jun Teng

Turkish Journal of Chemistry

Nonisothermal pyrolysis measurements of polystyrene (PS)/ZSM-5 zeolite hybrids are conducted in N2 and thermogravimetric results have been kinetically analyzed with different isoconversional methods. Experimental results show that the addition of 5 and 10 wt.% ZSM-5 zeolite has increased the initial pyrolysis temperature of PS while the addition of 20 and 30 wt.% ZSM-5 zeolite can significantly decrease the initial pyrolysis temperature of PS. Elevated activation energy is resulted by adding low zeolite amount whereas reduced activation energy is obtained by adding high ZSM-5 amounts. The effect of zeolite ZSM-5 on PS pyrolysis can thus be observed to transfer from stabilizing …


Synthesis And Characterization Of Anderson-Evans Type Polyoxometalates, Antibacterial Properties, Hülya Avci Özbek Aug 2023

Synthesis And Characterization Of Anderson-Evans Type Polyoxometalates, Antibacterial Properties, Hülya Avci Özbek

Turkish Journal of Chemistry

In the present work, the new aluminium-substituted polyoxometalates of the Anderson-Evans type have been prepared and structurally defined by the reaction of aluminium (III) chloride hexahydrate and sodium tungstate dihydrate/sodium molybdate dihydrate in an aqueous basic medium. Elemental analysis, FT-IR, TGA, 1H NMR, and 31P NMR analysis revealed that these polyoxometalates had the following formula: [Ph4 P]3 [Al(OH)6 Mo6 O18]·4H2 O 1, [Ph4 P]3 [Al(OH)6 W6 O18]·4H2 O 2, [C7 H10N]3 [Al(OH)6 Mo6 O18]·4H2 O 3, [C7 H10N]3 [Al(OH)6 W6 O18]·4H2 O 4. The compounds 1 and 2 show promising antibacterial activity against gram-positive Staphylcoccus aureus ATCC 25923 and gram-negative …