Results 91 to 100 of about 3,461,548 (318)
Agent-Mediated Social Choice [PDF]
Direct democracy is often proposed as a possible solution to the 21st-century problems of democracy. However, this suggestion clashes with the size and complexity of 21st-century societies, entailing an excessive cognitive burden on voters, who would have to submit informed opinions on an excessive number of issues.
arxiv
OGLE Cepheids and RR Lyrae Stars in the Milky Way [PDF]
We present new large samples of Galactic Cepheids and RR Lyrae stars from the OGLE Galaxy Variability Survey.
arxiv +1 more source
Teacher Competence and 21st Century Skills in Transformation Schools 2025 (TS25)
The purpose of this study is to identify the relationship between teacher competence and 21st century skills. Besides, the study also examines the influence of each dimension on teacher competence that contributes to predictive factors in 21st century ...
Jamilah Sulaiman, Siti Noor Ismail
semanticscholar +1 more source
Assessing sheep’s wool as a filtration material for the removal of formaldehyde in the indoor environment [PDF]
textFormaldehyde is one of the most prevalent and toxic chemicals found indoors, where we spend ~90% of our lives. Chronic exposure to formaldehyde indoors, therefore, is of particular concern, especially for sensitive populations like children and ...
Wang, Jennifer, active 21st century
core
On the manifestations of particles [PDF]
The mathematical description of stable particle-like systems appearing in relativistic quantum field theory at large, respectively small scales or non-zero temperatures is discussed.
arxiv
Dynamic human development in the 21st Century demands students to make innovations in the world of education. Students are required to have 21st-century skills, namely creativity, critical thinking, collaboration, and communication. In contrast, teachers
Dedi Riyan Rizaldi+2 more
semanticscholar +1 more source
Bio-inspired nanophotonics : manipulating light at the nanoscale with plasmonic metamaterials [PDF]
textMetals interact very differently with light than with radio waves and finite conductivities and losses often limit the way that RF concepts can be directly transferred to higher frequencies.
Zhao, Yang, active 21st century
core
Meeting Global Cooling Demand with Photovoltaics during the 21st Century [PDF]
Space conditioning, and cooling in particular, is a key factor in human productivity and well-being across the globe. During the 21st century, global cooling demand is expected to grow significantly due to the increase in wealth and population in sunny nations across the globe and the advance of global warming.
arxiv +1 more source
Eutrophication will increase methane emissions from lakes and impoundments during the 21st century
Lakes and impoundments are an important source of methane (CH4), a potent greenhouse gas, to the atmosphere. A recent analysis shows aquatic productivity (i.e., eutrophication) is an important driver of CH4 emissions from lentic waters.
J. Beaulieu, T. DelSontro, J. Downing
semanticscholar +1 more source