Key words for the sustainable mobility policy of Wageningen University & Research (WUR) are: safe, healthy, sustainable, accessible, emission reduction and future-focused. WUR has three key elements, in following order importance: 1) less travel, 2) transition to modes transport, 3) efficient, clean transport. The objective is further decrease our annual carbon emissions by at least 2%. WUR...

The societal need for a mobile workforce increases time spent commuting and thus also the total workday. How this affects individual well-being and social life is, however, surprisingly little known. We investigated the relation between commuting time and mode, and social participation and general trust in other people as measures of social capital, using data from public health surveys conduct...

over the past two decades, the role of intellectual property rights in all areas of science and technology has exploded globally– primarily due to the rules prescribed by the world trade organization’s trips and by bilateral/regional trade agreements. the trips agreement obligates all wto member countries to adopt and enforce minimum standards of intellectual property rights. the trips agreemen...

r is called commuting regular ring (resp. semigroup) if for each x,y $in$ r thereexists a $in$ r such that xy = yxayx. in this paper, we introduce the concept of commuting$pi$-regular rings (resp. semigroups) and study various properties of them.

Little is known about potential cascading effects of climate change on the ability predators to exploit mobile aggregations prey with a spatiotemporal distribution largely determined by climatic conditions. If employ central-place foraging when rearing offspring, parents locate sufficient could be reduced change. In Serengeti National Park, Tanzania, migratory species dominate mammalian herbivo...

AIM The purpose of the present study is to examine the prevalence of active commuting and factors associated with participation in active commuting in the municipality of Karlskrona, Sweden. Active commuting is defined here as walking or cycling to and from school/work for at least 15 minutes one-way. METHOD A cross-sectional study was carried out, which included baseline data from parents-to...

dynamically allocate resources to and make plans for solving problems as they arise in the world. The setting, Monroe County, NY, is considerably more complex than our previous domains (e.g. Pacifica, TRAINS), and raises new issues in knowledge representation and reference. Emergencies include requests for medical assistance, car accidents, civil disorder, and larger problems such as flooding a...

Matrices that are products of two (or more) commuting square-zero matrices and matrices that are products of two commuting nilpotent matrices are characterized. Also given are characterizations of operators on an infinite dimensional Hilbert space that are products of two (or more) commuting square-zero operators, as well as operators on an infinite-dimensional vector space that are products of...

In this note, we show that the set of all commuting d-tuples of commuting n × n matrices that are contained is an n-dimensional commutative algebra is a closed set, and therefore, Gerstenhaber’s theorem on commuting pairs of matrices is a consequence of the irreducibility of the variety of commuting pairs. We show that the variety of commuting triples of 4×4 matrices is irreducible. We also stu...