enable us to undertake the building of roads in the more hilly sections of the county. One shovel and the necessary trucks and graders will be used on construction, while the other shovel and the remainder of the trucks will be free for loading and hauling the much-needed material required for maintain­ ing the remainder of our roads. Thus we expect in the coming year to give better service to ...

OBJECTIVES To determine the frequency, variability, sexual dimorphism and bilateral symmetry of fourteen dental crown traits in the deciduous and permanent dentition of 60 dental models (35 women and 25 men) obtained from a native, indigenous group of Nasa school children of the Musse Ukue group in the municipality of Morales, Department of Cauca, Colombia. METHODS This is a quantitative, des...

Continuously increasing global container trade and pressure from a limited number of large shipping companies are enforcing the need for efficient container terminals. By using internal material handling resources efficiently, transfer times and operating costs are reduced. We focus our study on container terminals using straddle carriers for transportation and storage operations. We assume tha...

Aim: To investigate the dental morphology of incisors of the Southern Chinese and compare these with studies in different populations. Materials and Methods: The dental morphology of study casts of an unselected sample from a 12 year old Hong Kong Oral Health Survey of 12 year old children (n=459; 295 boys and 164 girls) were studied. Results: The moderate types of shovel-shaped central incisor...

We address a location-allocation problem that requires deciding the location of a set of facilities, the allocation of customers to those facilities under facility capacity constraints, and the allocation of the customers to trucks at those facilities under per truck traveldistance constraints. We present a hybrid approach that combines integer programming and constraint programming using logic...

Cover illustration: Jip en Janneke voetballen met de situatieruimte [Bob and Jilly play soccer with situation space] by the author, after a drawing by Fiep Wes-tendorp. No human inquiry can be a science unless it pursues its path through mathematical exposition and demonstration 5 Extending the DSS model 147 5.1 Story retention 148 5.2 Pronoun resolution 153 5.3 Towards a textbase-level represe...

The aim of this paper is to describe a unique and unusual case of concomitant appearance of morphological dental anomalies in the maxillary anterior region, along with its management in a patient with no systemic abnormality. This case report describes the clinical and radiographic features of talon cusp, dens invaginatus, shovel-shaped incisors and a supernumerary tooth occurring in a single p...

Data associated with over 9000 accidents involving large trucks and combination vehicles during a two-year period on freeways in the greater Los Angeles area are analyzed relative to collision factors, accident severity, and incident duration and lane closures. Relationships between type of collision and accident characteristics are explored using log-linear models. The results point to signifi...

Sistem penambangan batubara di Tambang Banko Pit 1 Utara adalah strip mining dengan sistem shovel-dump truck. Jenis material terdiri dari top soil, claystone, siltstone strength 0,2 – 3 Mpa dan sebagian perlu diledakkan. Untuk menunjang kinerja excavator dilakukan pemberaian overburden terlebih dahulu menggunakan ripper Komatsu D375A-5. Berdasarkan nilai kuat tekan (strength) material, spesifik...