Results 41 to 50 of about 12,732 (200)

Network Structure and the Efficiency Gains from Mergers: Evidence from U.S. Freight Railroads

The RAND Journal of Economics, EarlyView.
ABSTRACT The trade‐off between market power and efficiency gains is central to antitrust analyses of mergers, but empirical evidence quantifying efficiencies remains limited. Using transaction‐level data from U.S. freight railroads (1985–2005), this article quantifies merger‐induced cost efficiencies, driven mainly by eliminating inter‐railroad ...
Yanyou Chen
wiley   +1 more source

Neuroliderazgo como estrategia para el fortalecimiento de la gestión directiva en instituciones educativas

Actualidades Investigativas en Educación, 2020
Comprender la gestión directiva en instituciones educativas a la luz de la neurociencia, ha dado origen al abordaje de las potencialidades del cerebro a favor del ejercicio del liderazgo como estrategia emergente, por lo cual, este estudio censal, se ...
Eduardo Alfonzo Atencio Bravo, Luz Jazmín Ramírez Lora, Yuly Beatriz Zappa Berastegui   +2 more
doaj   +1 more source

Balancing bossism: State expansion in the face of elite capture

American Journal of Political Science, EarlyView.
Abstract Central states have often relied on local elites to implement policies in peripheral areas. These strategies may allow otherwise weak states to impose their directives, but they can also be inefficient, particularly when a single elite commands total control over local politics (monopolist capture).
Anna F. Callis, Christopher L. Carter
wiley   +1 more source

Learning nanotechnology through experimentation: carbon nanotube manufacturing using an electric discharge machine

Nanotechnology Reviews, 2012
A novel nanotechnology laboratory experiment for a required junior/senior undergraduate engineering course, Engineering of Manufacturing Processes, is described and implemented.
Jaksic Nebojsa
doaj   +1 more source

Sensitivity of the Flow Number to Mix Factors of Hot-Mix Asphalt

Infrastructures, 2019
In the design of pavement infrastructure, the flow number is used to determine the suitability of a hot-mix asphalt mixture (HMA) to resist permanent deformation when used in flexible pavement.
Md Rashadul Islam, Sylvester A. Kalevela, Shelby K. Nesselhauf   +2 more
doaj   +1 more source

Diagnosing scaling bottlenecks in 10 community conservation initiatives in southern and eastern Africa

Conservation Biology, EarlyView.
Scaling area‐based conservation, including initiatives led or comanaged by Indigenous Peoples and local communities, is a flagship goal of the Kunming‐Montreal Global Biodiversity Framework. Conservationists often aspire to scale initiatives, but this is rarely achieved in practice. Identifying and addressing factors that limit initiative adoption (i.e.
Thomas Pienkowski, Matt Clark, Arundhati Jagadish, Aklei Albert, Mohanjeet Brar, Tarn Breedveld, Linda Chinangwa, Deepali Gohil, Deziderius Irumba, Ramzy Kanaan, Rose Peter Kicheleri, Phillip Kihumuro, Wilhelm Andrew Kiwango, Mathew Bukhi Mabele, Paul Matiku, Gimbage Mbeyale, Musingo Tito E. Mbuvi, Arthur Mugisha, Stanley Mwango, Iddi Mwanyoka, Robson Nyirenda, Geoffrey Oula, Jón Geir Pétursson, Taddeo Rusoke, Nelson Turyahabwe, Moses Kazungu, Lessah Mandoloma, Charles Meshack, Kaala B. Moombe, Francis Moyo, Victor K. Muposhi, Amos Ochieng, Edwin Sabuhoro, Anna Spenceley, Emmanuel Sulle, David Mwesigye Tumusiime, Paulo Wilfred, Peadar Brehony, Elias Damtew Assef, Morena Mills   +39 more
wiley   +1 more source

Selenium Speciation in the Fountain Creek Watershed (Colorado, USA) Correlates with Water Hardness, Ca and Mg Levels

Molecules, 2017
The environmental levels of selenium (Se) are regulated and strictly enforced by the Environmental Protection Agency (EPA) because of the toxicity that Se can exert at high levels. However, speciation plays an important role in the overall toxicity of Se,
James S. Carsella, Irma Sánchez-Lombardo, Sandra J. Bonetti, Debbie C. Crans   +3 more
doaj   +1 more source

Strengthening community‐based fisheries monitoring programs with Indigenous perspectives

Conservation Biology, EarlyView.
Abstract Community‐based monitoring (CBM) programs are increasingly recognized as essential for adaptive environmental stewardship. Yet, the CBM literature often highlights successful cases and privileges evaluations by external experts over those of community members themselves.
Kanwaljeet Dewan, Monica E. Mulrennan, Edward Georgekish   +2 more
wiley   +1 more source

Global overview of progress in respecting the contributions of traditional knowledge in biodiversity governance

Conservation Biology, EarlyView.
Abstract Recognition and engagement of Indigenous Peoples and local communities (IP&LCs) and other traditional knowledge (TK) holders in formal biodiversity governance remain limited, despite their significant contribution to the conservation and sustainable use of biodiversity through their knowledge, innovations, practices, and land stewardship.
Kinga Öllerer, Pernilla Malmer, Marianna Biró, Noor Noor, Polina Shulbaeva, Maurizio Farhan Ferrari, Suneetha M. Subramanian, András Báldi, Zsolt Molnár   +8 more
wiley   +1 more source

Frequency of cannabis use and symptoms of anxiety and depression: a cross-sectional analysis of the Colorado cannabis users health cohort

Journal of Cannabis Research
Background Cannabis is commonly used as a self-prescribed treatment for anxiety and depression, but few studies have evaluated these associations using both validated mental health scales and biological cannabinoid markers.
Christine M. Steeger, Poojashree Tandukar, Karin F. Hoth, Mark Aloia, Fred Wamboldt, Peter Castaldi, Sunita Sharma, Nancy Lorenzon, Laura E. Crotty Alexander, Jost Klawitter, Cristina Sempio, Gregory L. Kinney, Meghan D. Althoff, Gina R. Kruse, Russell P. Bowler   +14 more
doaj   +1 more source