Results 131 to 140 of about 56,399 (238)

Effects of nitrogen deposition on territory numbers of breeding birds

Conservation Biology, EarlyView.
Abstract Deposition of atmospheric N (nitrogen) is assumed to be a major cause of biodiversity decline in Europe. To date, few studies on the direct or indirect effects of N on bird species have been conducted. Using Swiss bird count data and habitat data, we analyzed the correlation of N deposition with numbers of territories of 112 breeding bird ...
Kim Meichtry‐Stier, Pius Korner, Simon Birrer, Peter Knaus   +3 more
wiley   +1 more source

Nitrous Oxide Sourcing, Use and Harms: Insights From Australians Who Use Ecstasy/MDMA and Other Illicit Stimulants

Drug and Alcohol Review, EarlyView.
ABSTRACT Introduction Increasing harms associated with nitrous oxide use have raised concerns, but limited evidence exists to inform harm reduction. This study aimed to identify how nitrous oxide is sourced, the products/forms used, awareness of health risks, engagement in harm reduction and experience of neurological symptoms.
Jodie Grigg, Simon Lenton, Amy Peacock, Jessamine Soderstrom, Cate King, Natalie Thomas, Rachel Sutherland   +6 more
wiley   +1 more source

Obesity and dental caries among South Brazilian schoolchildren: a 2.5-year longitudinal study

Brazilian Oral Research
The aim of this study was to assess the association between weight status and ΔDMFS among 12-year-old schoolchildren from South Brazil. A total of 801 12-year-old schoolchildren were followed-up for 2.5 ± 0.3 years. Data collection included questionnaire,
Nicássia Cioquetta LOCK, Cristiano SUSIN, Carolina Doege BRUSIUS, Marisa MALTZ, Luana Severo ALVES   +4 more
doaj   +1 more source

Recurrence relations for binomial-Eulerian polynomials

, 2017
Binomial-Eulerian polynomials were introduced by Postnikov, Reiner and Williams. In this paper, properties of the binomial-Eulerian polynomials, including recurrence relations and generating functions are studied. We present three constructive proofs of the recurrence relations for binomial-Eulerian polynomials.
Ma, Jun, Ma, Shi-Mei, Yeh, Yeong-Nan
openaire   +2 more sources

Robust Trend Estimation From Temporally Irregular Recreational Fisheries Surveys: A Panel Modeling Framework for Sparse Time Series

Fisheries Management and Ecology, EarlyView.
ABSTRACT Monitoring of recreational fisheries faces ongoing challenges due to irregular data collection and sampling gaps. We used a robust statistical approach combining cross‐sectional panel modeling with generalized linear models to analyze discontinuous time series data.
E. Afrifa‐Yamoah, S. M. Taylor, U. A. Mueller   +2 more
wiley   +1 more source

Characteristic polynomials of some min and max matrices

Mathematics Open
In this paper, we investigate Min matrices [Formula: see text] and Max matrices [Formula: see text] whose entries are [Formula: see text] and [Formula: see text], respectively, where [Formula: see text] and [Formula: see text]. By utilizing combinatorial
Wei Xie
doaj   +1 more source

Handling Out‐of‐Sample Areas to Estimate the Unemployment Rate at Local Labour Market Areas in Italy

International Statistical Review, EarlyView.
Summary Unemployment rate estimates for small areas are used to efficiently support the distribution of services and the allocation of resources, grants and funding. A Fay–Herriot type model is the most used tool to obtain these estimates. Under this approach out‐of‐sample areas require some synthetic estimates. As the geographical context is extremely
Roberto Benedetti, Federica Piersimoni, Monica Pratesi, Nicola Salvati, Thomas Suesse   +4 more
wiley   +1 more source

A Conversation With David Bellhouse

International Statistical Review, EarlyView.
Summary David Richard Bellhouse was born in Winnipeg, Manitoba, on 19 July 1948. He studied actuarial mathematics and statistics at the University of Manitoba (BA, 1970; MA, 1972) and completed his PhD at the University of Waterloo, Ontario, in 1975. After being an Assistant Professor for 1 year at his alma mater, he joined the University of Western ...
Christian Genest
wiley   +1 more source

Discrete Event Systems Theory for Fast Stochastic Simulation via Tree Expansion

Systems
Paratemporal methods based on tree expansion have proven to be effective in efficiently generating the trajectories of stochastic systems. However, combinatorial explosion of branching arising from multiple choice points presents a major hurdle that must
Bernard P. Zeigler
doaj   +1 more source

Winning is not the only metric: the complexity of control manipulation in knockout tournaments for a redefined goal

International Transactions in Operational Research, EarlyView.
Abstract We study control manipulation by generalizing the notion of success in knockout tournaments. The definition of success can be broadened to include other concepts of accomplishment rather than focusing solely on the identity of the tournament winner. Manipulation can be done in favor of diverse stakeholders.
Hadassa Daltrophe, Tammar Shrot, Lior Aronshtam   +2 more
wiley   +1 more source