Results 91 to 100 of about 558,299 (291)

Increasing the efficiency and stability of fuel supply to the combustion chamber of a liquid rocket engine by spray nozzles

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
In this paper, various configurations of jet nozzles are analyzed, as well as their design. The effects of the inlet chamfer of jet nozzles on their flow rate and range are considered.
Yu. I. Ageenko, A. S. Bubnova
doaj   +1 more source

Understanding Climate Change Education Practices in Kalimantan Through Exploratory Field Research With Local Voices

Science Education, EarlyView.
ABSTRACT This article is based on a study that examines the practices and perspectives of selected educational actors in Kalimantan, Indonesia, on climate change education. The region is highly affected by climate crises and holds global relevance for mitigation due to its tropical forests and peatlands.
Carla Hermanussen, Saritha Kittie Uda
wiley   +1 more source

A Hero's Journey to Systemic Change: Developing Expertise in Agricultural Development

Sustainable Development, EarlyView.
ABSTRACT Experts in rural development and agrarian change wield considerable influence over programme design and delivery, directing resources and shaping trajectories towards the Sustainable Development Goals (SDGs). Yet the pathways through which such expertise develops remain under‐examined. This study examines the journey to expertise among experts
Kirt Hainzer, Caitlin Finlayson, Nicholas Harrigan, Andrew McGregor, Katharine McKinnon, Van Touch, Ariane Utomo, Brian R. Cook   +7 more
wiley   +1 more source

Prohibited Plants: Converging Sustainability Transitions and Local Development in ‘Left‐Behind Places’

Sustainable Development, EarlyView.
ABSTRACT This paper examines the relationship between sustainability transitions and local development through the case of Colombia's medicinal cannabis industry. It highlights how neglecting place‐specific needs and development expectations can hinder equitable transitions and reinforce existing socio‐economic disparities.
Diana Morales, Mónica Ramos‐Mejía
wiley   +1 more source

The Impact of Dust Particles on the Function of Screen‐Printed Triple‐Mesoscopic Perovskite Solar Cells

Small, EarlyView.
Screen‐printed mesoporous carbon perovskite solar cells offer an accessible route to scalable green energy. This study investigates the impact of dust particle contamination during the manufacture of this type of solar cell. Results suggest clean rooms may be unnecessary if strict cleanliness is maintained during storage and printing processes in ...
Kathryn Lacey, Sarah‐Jane Dunlop‐Potts, Carys Worsley, Rodrigo Garcia‐Rodriguez, Tom Dunlop, Declan Hughes, Krishna Seunarine, Matthew Davies, Trystan Watson   +8 more
wiley   +1 more source

Making room for patients in economic evaluation: a commentary on current capacity and future directions

Research Involvement and Engagement
Patient engagement, in which patients and their caregivers work together with research teams, can enhance the relevance, quality, and applicability of health research findings.
Emily R. Thompson, Mackenzie Wilson, Stuart G. Nicholls, Dean A. Fergusson, Manoj Lalu, Maureen Smith, Terry Hawrysh, Sharon Bede, Michael Halas, Linda Riches, Deirdre Walsh, Justin Presseau, Kednapa Thavorn   +12 more
doaj   +1 more source

Accounting for Friendlessness: Stigma and the Quest for an Honorable Self

Symbolic Interaction, EarlyView.
How do people who identify as friendless make sense of their condition in a moment when friendship is extolled for the support and satisfaction it offers? This article draws on interviews with 21 adults in an Atlantic Canadian city. We argue that our interviewees were rarely at ease with their friendlessness and were at pains to recover an honorable ...
Laura Eramian, Peter Mallory
wiley   +1 more source

Game Changers: Leadership Lessons From Popular Sport Icons

New Directions for Student Leadership, Volume 2025, Issue 185, Page 25-31, Spring 2025.
ABSTRACT This article explores leadership lessons that can be drawn from popular sport icons. These lessons reveal how athletes leverage their status to drive social change or how they inspire others through performance‐based practices that align with effective modern‐day leadership skills.
S. Lynn Shollen, Maylon Hanold
wiley   +1 more source

L0 Sparse Inverse Covariance Estimation

, 2015
Recently, there has been focus on penalized log-likelihood covariance estimation for sparse inverse covariance (precision) matrices. The penalty is responsible for inducing sparsity, and a very common choice is the convex $l_1$ norm.
Hero III, Alfred O., Marjanovic, Goran
core  

A Femininomenon: Leadership Development Through Representation On‐Screen

New Directions for Student Leadership, Volume 2025, Issue 185, Page 67-74, Spring 2025.
ABSTRACT Historically, films and television centered men, but there has recently been a shift toward focusing on women and people of color (and women of color) in leading roles. Films and shows like Black Panther, Barbie, and Ashoka reflect this trend, offering more complex stories and diverse representation.
Kathleen Callahan
wiley   +1 more source