Biochar production in northern New Mexico: Identifying challenges and opportunities.

Thinning woody biomass to reduce wildfire risk has become a common forest management prescription throughout the Intermountain West. Converting the resulting slash into biochar, a carbon-rich soil amendment, could help mitigate some of the shortcomings of other fuel treatments, but land managers in the western United States have not widely adopted biochar, despite its potential benefits and new government incentives. Thus, we investigated the often under-studied sociocultural, economic, and biophysical barriers to biochar production and identified important factors to inform future outreach efforts that will help to expand biochar production from thinning slash in northern New Mexico.

Socioecological effects of swidden management in traditional Maya agroforests in the Selva Lacandona of Chiapas, Mexico.

For millennia, Maya farmers (i.e., milperos) throughout Mesoamerica have managed milpa: sequential agroforests initiated by slashing and burning patches of secondary forest and then cultivating a diverse polyculture of trees and annual crops.

Geological setting control of flood dynamics in lowland rivers (Poland).

We aim to answer a question: how does the geological setting affect flood dynamics in lowland alluvial rivers? The study area covers three river reaches: not trained, relatively large on the European scale, flowing in broad valleys cut in the landscape of old glacial plains. We focus on the locations where levees [both: a) natural or b) artificial] were breached during flood. In these locations we identify (1) the erosional traces of flood (crevasse channels) on the floodplain displayed on DEM derived from ALS LIDAR.

[Studies on the occurrence of systemic manifestations during first eruption of teeth in children].

The aim of the study was establishing whether systemic symptoms and signs appearing in children during first eruption of teeth are connected with this process, and what is the correlation between the studied features and eruption of individual milk teeth. The study involved 55 generally healthy infants aged 3-4 months, and the observation was continued up to the age of 36 months. The study on the development of teeth was carried out in two Regional Paediatric Dental Clinics in Warsaw, at 6-week intervals in the first year of life, and at 10-week intervals in the 2nd and 3rd years.

[Introduction of a new technique of partial pulp amputation in permanent teeth in children after mechanical injuries. Preliminary communication].

The study material comprised 56 permanent teeth with traumatic pulp exposure complicated in 15 cases by partial tooth luxation in 52 children aged from 7 to 15 years. In each case routine clinical and radiological examinations were done. The time between trauma and procedure ranged from several hours to 70 days.