Impact of Asymmetric Weight Update on Neural Network Training With Tiki-Taka Algorithm.

Recent progress in novel non-volatile memory-based synaptic device technologies and their feasibility for matrix-vector multiplication (MVM) has ignited active research on implementing analog neural network training accelerators with resistive crosspoint arrays. While significant performance boost as well as area- and power-efficiency is theoretically predicted, the realization of such analog accelerators is largely limited by non-ideal switching characteristics of crosspoint elements. One of the most performance-limiting non-idealities is the conductance update asymmetry which is known to distort the actual weight change values away from the calculation by error back-propagation and, therefore, significantly deteriorates the neural network training performance.

"Back to Basics" Approach for Improving Maternal Health Care Services Utilization in Lao PDR.

Earlier studies claim inadequate knowledge and understanding of maternal health care service among women and families account for low demand and utilization of these services. This study explores maternal service utilization in Lao PDR by interviewing women, families, health service providers, and community members in Xiengkhuang province. In general, women's attitude and acceptance of maternal health care were positive, with many expressing appreciation and need for maternal health services.

Provider perspectives on constraints in providing maternal, neonatal and child health services in the Lao People's democratic republic: a qualitative study.

Background: To reduce its high maternal and neonatal mortality rate and meet Millennium Development Goals four and five, Lao PDR has adopted a national 'Strategy and Planning Framework of Implementation of Maternal, Neonatal and Child Health Services'. This paper reports on implementation constraints identified in three demonstration sites.

Methods: The objectives of this paper are to analyse health worker perceptions of the implementation of the strategy and constraints faced during implementation.

[Effects of bisphenol A on the placental function and reproduction in rats].

Objectives: The aim of this study was to investigate the effects of bisphenol A (BPA), an estrogen-like environmental endocrine disrupter, on the placental function and reproduction in rats. The mRNA levels of the placental prolactin-growth hormone(PRL-GH) gene family, placental trophoblast cell frequency and reproductive data were analyzed.

Methods: The pregnancies of F344 Fisher rats (160 g +/-20 g) were detected by the presence of the copulatory plug or sperm in the vaginal smear, which marked Day 0 of pregnancy.