Results 111 to 120 of about 834,256 (322)

Top‐Down Fabricated Wood‐Derived Pressure and Strain Sensors: A Review

open access: yesAdvanced Science, EarlyView.
This review focuses on wood‐derived pressure/strain sensors fabricated via top‐down strategies. It analyzes wood's structural composition, examines processing techniques, discusses sensor types and sensing mechanisms, and reviews existing research. The article concludes with future directions for enhancing performance and scalability.
Yi Ren   +8 more
wiley   +1 more source

Italian Teachers' Well-Being Within the High School Context: Evidence From a Large Scale Survey

open access: yesFrontiers in Psychology, 2019
This paper aims to investigate the relationship between Italian teachers' well-being, socio-demographic characteristics and professional background. Using data from the 2015 wave of the Program for International Student Assessment (PISA) we considered ...
Barbara Barbieri   +3 more
doaj   +1 more source

Dynamic Multilevel Graph Visualization

open access: yes, 2007
We adapt multilevel, force-directed graph layout techniques to visualizing dynamic graphs in which vertices and edges are added and removed in an online fashion (i.e., unpredictably).
Veldhuizen, Todd L.
core   +1 more source

Precise Regulation of Membrane Proteins: From Physical Technology to Biomolecular Strategy

open access: yesAdvanced Science, EarlyView.
This review summarizes the emerging strategies for the precise regulation of membrane proteins using physical stimuli and biomolecule‐based tools. These methods provide new insights into cell regulation and offer promising directions for future disease treatment.
Xiu Zhao   +6 more
wiley   +1 more source

A simulation-based assessment of the bias produced when using averages from small DHS clusters as contextual variables in multilevel models

open access: yesDemographic Research, 2006
There is much interest these days in the importance of community institutions and resources for individual mortality and fertility. DHS data may seem to be a valuable source for such multilevel analysis. For example, researchers may consider including in
Øystein Kravdal
doaj  

Optimization of Grayscale Lithography for the Fabrication of Flat Diffractive Infrared Lenses on Silicon Wafers

open access: yesMicromachines
Grayscale lithography (GSL) is an alternative approach to the standard binary lithography in MEMS fabrication, enabling the fabrication of complicated, arbitrary 3D structures on a wafer without the need for multiple masks and exposure steps. Despite its
Angelos Bouchouri   +3 more
doaj   +1 more source

Genomics Insights Into High‐Latitude Adaptation of Tibetan Macaques

open access: yesAdvanced Science, EarlyView.
Tibetan macaques exhibit unique adaptations to cold, high‐latitude environments, including shortened tails and enhanced fat storage. Genomic analyses reveal a species‐specific TBX6 mutation linked to tail reduction and selection on lipid metabolism genes.
Rusong Zhang   +12 more
wiley   +1 more source

Multilevel regression and multilevel structural equation modeling [PDF]

open access: yes, 2013
Multilevel modeling in general concerns models for relationships between variables defined at different levels of a hierarchical data set, which is often viewed as a multistage sample from a hierarchically structured population. Common applications are individuals within groups, repeated measures within individuals, longitudinal modeling, and cluster ...
openaire   +4 more sources

The prevalence and predictors of clinical breast cancer screening in Sub-Saharan African countries: a multilevel analysis of Demographic Health Survey

open access: yesFrontiers in Public Health
BackgroundDespite a higher rate of breast cancer in sub-Saharan Africa (SSA), efforts to treat the disease through breast cancer screening are suboptimal, resulting in late diagnosis of breast cancer and poor outcomes. Several studies have been conducted
Aklilu Habte Hailegebireal   +7 more
doaj   +1 more source

A Multilevel Portrait of Shrinking Urban Russia

open access: yesEspace populations sociétés, 2016
The demographic shrinkage of Russia, as measured by harmonized data on different geographical scales, appears unprecedented, geographically and historically.
Clémentine Cottineau
doaj   +1 more source

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