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New Police Chief Takes Formal Oath at Historical Society Ceremony

2018-01-27 00:58:33| PortlandOnline

Pamplin Media Group, January 22, 2018

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An Historical Overview

2017-09-14 17:22:22| PortlandOnline

PDF Document, 134kbCategory: N/NE Neighborhood Housing Plan

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Historical Tree Research Guide

2017-09-13 23:26:02| PortlandOnline

Learn how to research the history of trees in Portland using this guide, developed by Portland historian Dave-Paul Hedberg. PDF Document, 7,488kbCategory: Guides and Walks

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Air filtration for swine herds: A historical perspective

2017-09-06 11:00:00| National Hog Farmer

PRRS has been a game changer in the swine industry, and filtration of hog barns has made great strides in reduction of the the spread of the air-borne strains of the virus.

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Historical wildlife trends reliable for predicting species at risk

2017-08-02 06:00:00| LifeSciencesWorld

[NEWS] Some of the methods used to predict at risk species are trend-based - an indicator of what happens gradually over time - while others are trait based, which uses signs of climate change in the current environment. Mix these methods together, however, and you get an unreliable set of results, scientist have found. The researchers are calling for guidelines produced by the International Union for Conservation of Nature (IUCN) Red List, the world's main authority on …

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