Role of home nurturing environment on early childhood neurodevelopment: a community-based survey in Shanghai, China.

Background: Ages of 0-3 years are critical stages for children's neurodevelopment. However, the impact of the home nurturing environment on early childhood neurodevelopment remains unclear.

Objective: To explore the role of the home nurturing environment on early childhood neurodevelopment and to provide evidence of an association between fostering quality home nurturing and achieving optimal neurodevelopment.

Phthalate exposure and subfecundity in preconception couples: A nested case-control study.

Background: Phthalates (PAEs) are endocrine-disrupting chemicals ubiquitously found in the environment. This study aimed to examine the association between exposure of PAEs and subfecundity in preconception couples.

Methods: This is a nested case-control study based on preconception cohort.

High-speed photon-counting laser ranging for broad range of distances.

We demonstrate a high-speed photon-counting laser ranging system with laser pulses of multiple repetition rates to extend the unambiguous range. In the experiment, the laser pulses of three different repetition rates around 10 MHz were employed to enlarge the maximum unambiguous range from 15 m to 165 km. Moreover, the range of distances was increased as well, enabling the measurement on different targets of large separation distance with high depth resolution.

Multi-beam single-photon-counting three-dimensional imaging lidar.

Photon-counting laser ranging has attracted a lot of research interest for its application in the altimeter. In this letter, we report a large scale multi-beam photon-counting laser imaging system by using 100 laser beams in linear array as the light source. Taking advantage of a 100-channel low-noise high-efficiency single-photon detector, the three-dimensional image of remote targets could be constructed rapidly according to the time-of-flight measurement.