A virtual transport enterprise (VTE) is a temporary alliance of independent transport enterprises that come together to share resources, skills, and costs, supported by Information and Communication Technologies, in order to better attend market opportunities. To design an efficient and flexible VTE that presents the semblance of a single enterprise to the customers, is a very complex task. The...

However, hydrologists and ecologists are still woefully incapable of answering the question, “How much hydrologic alteration is too much for an aquatic or riparian ecosystem?” This is not to say that we haven’t learned a great deal about the influence of hydrologic variation and extreme events on species and natural communities or key ecosystem processes such as nutrient transport and cycling. ...

Bronchial atresia is an interesting congenital abnormality because of its variable appearance and its semblance to certain acquired diseases. It is characterized by a branching mass formed by mucus that dilates the proximal bronchi to the atretic segment. The distal lung to atresia can develop normally but it shows a paucity of blood vessels and is hyperinflated due to unidirectional collateral...

background: several concomitant disorders especially thyroid abnormalities have been reported in patients with myasthenia gravis (mg). we aimed to estimate the frequency and pattern of thyroid disorders in iranian patients with mg.all consecutive patients with mg referred to neurology clinic of rasool-e-akram hospital during 2006-2007 were enrolled. methods: all patients underwent clinical asse...

a computational study of the electronic structure and stability of complexes formed between zeolite y and boric acid was carried out at the hf and b3lyp levels using 6-31g* basis set. five structures located as local minimum in pes of complex (structures d, e, f, g, and h). the most stable structure is formed due to hydrogen bonding between two hydroxyl of boric acid and both oxygen of ...

Alfonso Cuarón's 2006 film Children of Men, adapted from the P. D. James novel, and set in 2027, presents a world where sudden universal infertility has doomed the human race to extinction. Global social breakdown results, but Britain maintains some semblance of functionality by means of brutal government oppression of its immigrant population. The same government has converted Battersea Power ...

factor also, given the accumulative nature of the skin damage.3 Despite the publicity effort regarding UV sun protection it is likely we will see some semblance of decrease only after knowledge and display of the detrimental effects are openly shared and debated in society. Unfortunately the trend related to sun damaged skin lesions is set to continue. Perhaps a new wave of deterrence such as w...

The conventional velocity scan can be computationally expensive for large-scale seismic data sets, particularly when the presence of anisotropy requires multiparameter scanning. We introduce a fast algorithm for 3D azimuthally anisotropic velocity scan by generalizing the previously proposed 2D butterfly algorithm for hyperbolic Radon transforms. To compute semblance in a two-parameter residual...

on the floor in a corner and remained perfectly still. Finally I went over, and sitting beside her asked, "What is your name?" For a while, there was no reply, but after several repetitions a semblance of a smile seemed to light up her face, and then without removing the finger from her mouth, she mumbled something which might have been her name. When asked if she would like to play some games,...