This study provides a new understanding on sources of P, which may serve as a foundation for further exploration of anthropogenic effects on P input. Estimation of net anthropogenic phosphorus input (NAPI) was based on an inventory of phosphorus (P) fertilizer use, consumption of human food and animal feed, seeding phosphorus and non-food phosphorus net flux. Across Mainland China, NAPI had an ...

Increasing demand for wireless mobile communications, coupled with limited network resources, has motivated investigation into alternative e cient mobility management solutions. In this paper, we consider wireless PCS call setup protocols. We propose a Lightweight Location Lookup Protocol, which signi cantly reduces the network signaling and setup delay during call setup. As an alternative, we ...

shortage of water has been a great consideration since ancient times in iran. the yearly average atmospheric precipitation in iran is around 250 mm considering the total area of the country, it can be estimated that our share of water is 420 x 109 per year. due to evaporation and run off to the sea through rivers and infliction it has been estimated the available water can not be more than 120 ...

INTRODUCTION .......................................... 403 COLOR VISION .......................................... 405 RED AND GREEN PIGMENTS ................................. 406 Psychophysics of Red~Green Color Blindness ....................... 406 Molecular Genetics of RedIGreen Color Blindness .................... 407 Variation in Normal Color Vision .............................. 409 Blue...

Liking one object more than another does not guarantee caring about it more, and vice-versa. Here we show that with age, children increasingly distinguish between these two ways of valuing objects. We conducted three experiments on 589 415 adults. In Experiment 1, 3–7-year-olds adults chose their own plain sticker attractive one. Among 6−7-year-olds adults, choices the were relatively common fo...

OBJECTIVE To estimate the cost effectiveness of alternative methods of managing low grade cervical cytological abnormalities detected at routine screening. Design Cost analysis within multicentre individually randomised controlled trial. SETTING Grampian, Tayside, and Nottingham. PARTICIPANTS 4201 women with low grade abnormalities. INTERVENTIONS Cytological surveillance or referral to co...