Results 51 to 60 of about 999 (214)

Operational Near Real Time Global Riverine Sediment Flux Estimates From Space

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract We present global estimates of riverine sediment flux derived from an open‐source suite of algorithms using the Harmonized Landsat Sentinel (HLS) and discharge products. We estimated Sediment Concentration (suspended sediment concentration [SSC]) via neural networks, trained and tested on matchups of in situ and HLS data, obtaining a median ...
L. V. Lucchese, R. Daroya, T. Simmons, P. Prum, N. Tebaldi, T. Pavelsky, S. Maji, J. Gardner, C. J. Gleason   +8 more
wiley   +1 more source

Involuntary Attention in Healthy Older Adults at Electroencephalographic Risk of Cognitive Decline: An ERP Study

Brain and Behavior, Volume 15, Issue 10, October 2025.
This study compared the distraction event‐related potential between 25 older adults with excessive theta activity (risk group, RG) and 25 controls (CG). Participants underwent an auditory duration discrimination task with standard and deviant tones while an EEG was recorded to obtain ERPs.
Mauricio González‐López, Rodolfo Solís‐Vivanco, Thalía Harmony, Thalía Fernández   +3 more
wiley   +1 more source

Inside the ice shelf: using augmented reality to visualise 3D lidar and radar data of Antarctica

The Photogrammetric Record, Volume 34, Issue 168, Page 346-364, December 2019., 2019
From 2015 to 2017, the ROSETTA‐Ice project comprehensively mapped Antarctica's Ross Ice Shelf. The campaign imaged the ice‐shelf surface with lidar and its internal structure with ice‐penetrating radar. The first augmented reality (AR) visualisation of the Antarctic Ice Sheet, using the Microsoft HoloLens, is presented.
Alexandra L. Boghosian, Martin J. Pratt, Maya K. Becker, S. Isabel Cordero, Tejendra Dhakal, Jonathan Kingslake, Caitlin D. Locke, Kirsty J. Tinto, Robin E. Bell   +8 more
wiley   +1 more source

A Study on the attitude of female high school students in Tiran and Koroun towards geometry instruction based on Van Hiele model [PDF]

فصلنامه نوآوری‌های آموزشی, 2011
Van Hiele theory is a learning model which presents different kinds of thought that students may experience when facing with Geometric shapes. It includes different levels from visual encounter with geometric shape to formal understanding of geometric ...
Mohammad Javad Liaghatdar, Hamidrezā Oreizi, Narjes Amini, Sa’eede Sadr Arhami   +3 more
doaj  

Foundation phase teachers’ (limited) knowledge of geometry

South African Journal of Childhood Education, 2014
This study is about student teachers’ conceptual understanding of shapes. While the National Curriculum Statement stipulates that by the time learners exit high school they should have grounded knowledge of basic geometry and know shapes such as polygons
Kakoma Luneta
doaj   +1 more source

Feature selective temporal prediction of Alzheimer's disease progression using hippocampus surface morphometry

Brain and Behavior, Volume 7, Issue 7, July 2017., 2017
In this work, we present our results of using machine learning to predict temporal behavior changes in Alzheimers Disease using entire topological feature maps of the hippocampus surface (2100 feature points). Our paper demonstrates that it is possible to use an entire topological map instead of just imaging derived volumetric measurements for ...
Sinchai Tsao, Niharika Gajawelli, Jiayu Zhou, Jie Shi, Jieping Ye, Yalin Wang, Natasha Leporé   +6 more
wiley   +1 more source

Significance of Van Hiele model curricular implementation [PDF]

, 2013
[ES] Este trabajo analiza la significatividad de la aplicación del modelo de Van Hiele en Geometría de 1º de ESO. Por una parte, se aplicó un cuestionario válido y fiable a 137 alumnos antes y después de estudiar la asignatura, determinando los errores ...
Sánchez García, Ana Belén, López Fernández, Ricardo, Cabello-Pardos, Ana Belén   +2 more
core  

Upaya Meningkatkan Kemampuan Berpikir Geometri Van Hiele Siswa SMP Melalui Model Pembelajaran Example Non Examples

, 2016
Pokok bahasan geometri yang berhubungan dengan visualisasi gambar seringkali mengakibatkan siswa tidak senang dalam menghadapi pelajaran matematika. Jika dihubungkan dengan kemampuan berpikir matematis maka kemampuan yang paling cocok untuk dikembangkan ...
Suherman, Nanang
core   +2 more sources

Conocimiento del contenido sobre polígonos de estudiantes para profesor de matemáticas (Mathematical Content Knowledge on Polygons of Peruvian Prospective Teachers) [PDF]

PNA: Revista de Investigación en Didáctica de la Matemática, 2010
En este trabajo analizamos el conocimiento geométrico sobre polígonos de estudiantes para profesor peruano. Este conocimiento se describe en función de las capacidades que evidencian.
Emma Carreño, Nuria Climent
doaj  

Analysis of Mathematical Communication Skills and Confidence of 10th Grader of SMK in Geometry Material Viewed from Cognitive Style

Unnes Journal of Mathematics Education, 2017
The purpose of this study were to describe the mathematical communication skills and the confidence of grade X SMK students on Van Hiele model geometry learning based on their cognitive styles. It was a qualitative descriptive research. The subjects were
Elanda Laksinta Putri, Dwijanto Dwijanto, Sugiman Sugiman   +2 more
doaj   +1 more source