Results 81 to 90 of about 3,307,588 (255)

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Unit roots and multiple structural breaks in real output [PDF]

Utilizing re-sampling. Methods, we present evidence on the rejection probabilities for difference-stationary and trend-stationary models for Mexico’s real and real per-capita annual gross domestic product.
Araceli Ramírez-Zamora, Antonio E. Noriega   +1 more
core  

Multiple Structural Breaks in Australia's Macroeconomic Data: An Application of the Lumsdaine and Papell Test [PDF]

This paper employs all available annual time series data to endogenously determine the timing of structural breaks for 10 macroeconomic variables in the Australian economy. The ADF (Augmented Dickey and Fuller) test and the LP (Lumsdaine and Papell, 1997)
Valadkhani, Abbas, Layton, Allan P., Pahlavani, Mosayeb   +2 more
core   +2 more sources

Dose-Response Effects of a Multimodal Physical Activity Intervention on Selective Attention in Schoolchildren from Bogotá

Children
Background/Objectives: The dose–response relationship between physical activity (PA) and cognitive indicators such as selective attention remains a subject of debate among professionals in education and neuroscience.
Jaime Alvarado-Melo, Henry León-Ariza, Angela Figueroa-Palacios, Adriana Gutiérrez-Galvis, Manuel Riveros-Medina, Andrés Rosa-Guillamon, Eliseo Garcia-Canto   +6 more
doaj   +1 more source

Feasibility of breaking up sitting time in mainstream and special schools with a cognitively challenging motor task

Journal of Sport and Health Science, 2019
Background: Children spend ≤70% of the school day sitting in class. Classroom-based active breaks can benefit children's physical health, but if the breaks are cognitively demanding (i.e., combine physical exertion and mental engagement), they may also ...
Emiliano Mazzoli, Harriet Koorts, Jo Salmon, Caterina Pesce, Tamara May, Wei-Peng Teo, Lisa Michele Barnett   +6 more
doaj   +1 more source

The ubiquitin system in normal and infected germinal center B cells

FEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis, Lesly Mejia, Emily K Moser   +2 more
wiley   +1 more source

A Midlecture Student Seminar: an Activity to Break the Monotony

Advances in Physiology Education, 2006
Students at Melaka Manipal Medical College (Manipal Campus) undergo their first 2.5 yr of a medical training program. During the first year, students are taught anatomy, physiology, and biochemistry.
openaire   +2 more sources

Effects of a Video-Guided Active Break Programme on the Self-Esteem and Socio-Emotional Well-Being of Schoolchildren with Special Educational Needs: Active Classes Project

Behavioral Sciences
Serving students with special educational needs (SENs) involves recognising that their learning is closely linked to their emotional needs. Self-esteem and socio-emotional well-being play a key role in their motivation and adaptation to school.
Alejandra Robles-Campos, Yasna Chávez-Castillo, Isidora Zañartu, Ana María Arias, Carolina Muñoz, José Guzmán, Daniel Reyes-Molina, Igor Cigarroa, Maria Antonia Parra-Rizo, Juan de Dios Benítez-Sillero, Jose Manuel Armada-Crespo, Javier Murillo-Moraño, Rafael Zapata-Lamana   +12 more
doaj   +1 more source

Smaller is better: nanobodies meet NMR

FEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

International Labour Force Participation Rates by Gender: Unit Root or Structural Breaks? [PDF]

This paper examines the possibility of unit roots in the presence of endogenously determined multiple structural breaks in the total, female and male labour force participation rates (LFPR) for Australia, Canada and the USA.
Zeynel Abidin Ozdemir, Aysit Tansel, Mehmet Balcilar   +2 more
core