Results 81 to 90 of about 2,917,915 (256)

Ohio History Center Dedication Ceremony photograph

open access: yes, 1970
This 9.5" x 6.5" (24.13 x 16.51cm) photograph of the dedication of the Ohio History Center, the new home of the Ohio Historical Society (now the Ohio History Connection), was taken on August 23, 1970.
Ohio History Connection
core  

The Connection Between Spatial and Mathematical Ability Across Development

open access: yes, 2018
In this article, we review approaches to modeling a connection between spatial and mathematical thinking across development. We critically evaluate the strengths and weaknesses of factor analyses, meta-analyses, and experimental literatures.
Kelly S. Mix   +2 more
core   +1 more source

Grayscale Photomasks Enable Noncontact Optical Patterning of Hydroxypropyl Cellulose Gels for Dynamic Art

open access: yesAdvanced Functional Materials, EarlyView.
Mask‐encoded UV exposure translates digital color information into pixel‐resolved structural‐color patterns in hydroxypropyl cellulose gels. Gaussian‐process‐guided calibration links UV processing conditions, wavelength, and mask opacity, enabling parallel fabrication of multicolor images in a single 10 s exposure.
Mengting Ye   +8 more
wiley   +1 more source

Is the Problem Based Learning Using Media Puzzle Effective on Students' Mathematical Connection Ability?

open access: yesAl Ibtida: Jurnal Pendidikan Guru MI
Effective mathematics learning not only teaches concepts, but also encourages students to connect the various concepts in real life. This study aims to determine the effectiveness of Problem-Based Learning (PBL) using puzzle media in improving students ...
Linda Indiyarti Putri   +2 more
doaj   +1 more source

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

open access: yesAdvanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar   +9 more
wiley   +1 more source

The discovery learning model to improve students' mathematical connection ability in exponential material [PDF]

open access: yes
Connection ability is one of the mathematical skills standards that students must possess. Mathematical connection ability is the capability to relate mathematics to other fields of study as well as to mathematics itself.
Restu Lusiana   +5 more
core   +1 more source

Students’ Mathematical Connection Ability on Quadratic Function with Realistic Mathematics Education (RME) Approach

open access: yesSoutheast Asian Mathematics Education Journal
Students need to be able to make mathematical connections because it helps them learn math more thoroughly, retain it longer, and help solve problems. This study aimed to determine whether RME learning can improve students' mathematical connection skills.
Ardhina Wijayanti, Ibrahim Ibrahim
doaj   +1 more source

Mechanistic Origins of Chemo‐Mechanical Instability and Failure in Solid‐State Lithium‐Sulfur Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Conversion‐induced sulfur expansion generates strong mechanical constraints and localized stresses within solid‐state Li‐S cathodes. Heterogeneous solid‐electrolyte confinement creates tensile strain‐energy hotspots that govern particle cracking. Larger sulfur particles accelerate fracture, while higher porosity relaxes constraint and delays damage ...
Arpan K. Sharma   +3 more
wiley   +1 more source

Children on steps of Ohio History Center

open access: yes, 1970
This photograph of children on the steps of the Ohio History Center was taken around 1970. At a press conference held in November 10, 1964, Governor James Rhodes announced financing for the construction of a new archives, library, and museum building ...
Ohio History Connection
core  

3D‐Printed Gradient Shape‐Memory Strain Sensors With Rewritable Gauge Factors

open access: yesAdvanced Functional Materials, EarlyView.
A 3D‐printed shape‐memory strain sensor combines thermomechanical programming with gradient architectural design. Preset strain rewrites the gauge factor (GF), while the gradient geometry amplifies the response through strain redistribution. Reprogrammable sensitivity enables the same sensor to detect weak pulse signals and monitor large‐amplitude ...
Xuan Zhang   +10 more
wiley   +1 more source

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