Bottles to trees: Plastic beverage bottles as an alternative nursery growing container for reforestation in developing countries

Bottles to trees: Plastic beverage bottles as an alternative nursery growing container for reforestation in developing countries

Reforestation is needed globally to help restore degraded sites, combat desertification, protect watersheds, and provide forest products. This involves planting forest tree seedlings grown in local nurseries, but technologies to produce quality seedlings are lacking in developing countries. Modern nursery containers used to propagate seedlings have internal-surface barriers (ribs or ridges) or ...

Sorting Plastic Bottles for Recycling

Scrambling Eggs in Plastic Bottles

This issue of PLoS Genetics contains the second of two important papers describing the high levels of meiotic failure caused by exposure of female mice to a chemical known as Bisphenol A (BPA) [1]. In the first article [2], Pat Hunt and her collaborators demonstrated high levels of meiotic failure in females exposed to BPA, suggesting that BPA exposure affects maturing oocytes. This conclusion ...

From Klein Bottles to Modular Super-Bottles

A modular approach is presented for the construction of 2-manifolds of higher genus, corresponding to the connected sum of multiple Klein bottles. The geometry of the classical Klein bottle is employed to construct abstract geometrical sculptures with some aesthetic qualities. Depending on how the modular components are combined to form these “Super-Bottles” the resulting surfaces may be single...

Shigella in baby bottles of a Brazilian newborn nursery.

Key words: Shigella dysenteriae; multi-drug resistance; baby bottles. Copyright © 2015 de Moraes et al. This is an open-access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Dear Editor, Cronobacter spp. (formerly Enterobacter sakazakii as described) a...