Results 111 to 120 of about 8,260 (293)

Punkaharju Research Park and nature conservation area - Nature trail [PDF]

, 2007
taiteltu ...

core  

Late summer plateau pika spatial habitat use revealed by high‐resolution wildlife tracking and unmanned aerial vehicle data on the Qinghai‐Tibet Plateau

Grassland Research, EarlyView.
Tiny “ecosystem engineers,” plateau pikas range across 1600 m², about two basketball courts, mixing soil and nutrients that sustain Tibet's fragile grasslands. Custom‐made trackers and drone imagery show dawn‐to‐dusk surface foraging and nested‐scale patch choices, offering fresh guidance for wildlife‐friendly grazing management.
Dan Li, Johannes M. H. Knops, Li Li
wiley   +1 more source

Solböle Research Area. Hiking trails in Solböle [PDF]

, 1997
monist
Mikkelä, Heli
core  

Diterpenoid Diversity across Land Plants

Helvetica Chimica Acta, EarlyView.
Here we bridge the knowledge of diterpene chemical diversity, biosynthesis, and evolution from nonvascular mosses and liverworts to that known from vascular plants. ABSTRACT The diverse array of diterpenoid natural products stems from the ease of manipulating the promiscuity of diterpene cyclases.
Anita Berg, Chad K. Papenfuhs, Amy E. Fraley   +2 more
wiley   +1 more source

Non-twist flax fibre reinforcement of lightweight plywood

Discover Applied Sciences
Using lignin-phenol-formaldehyde (LPF) impregnated flax fibres is a little-studied method for reinforcing plywood through natural materials with only a modest increase in density.
Marcus Cordier, Ole Gonnsen, Carsten Mai
doaj   +1 more source

Fallen Leaves as a Substrate for Biogas Production

Energies
Fallen leaves in cities are often treated as waste; therefore, they are collected, transported outside urban areas, and composted, which contributes to greenhouse gas (GHG) emissions.
Agnieszka Wysocka-Czubaszek, Robert Czubaszek   +1 more
doaj   +1 more source

100% Organic Livestock Feeds – preparing for 2005 [PDF]

, 2003
A project entitled “100% Organic Livestock Feeds – Preparing for 2005” looking at the implications for organic farmers of the removal of the current derogation to use a percentage of non-organic livestock feeds.
Hancock, Jake, McCalman, Heather, Weller, Richard   +2 more
core  

The impact of tobacco cessation on buccal mucosa cancer risk: A multi‐centre case–control study in India

International Journal of Cancer, EarlyView.
What's New? While the association between tobacco consumption and oral cancer is well established, the effect of cessation, particularly of chewing tobacco, the most common tobacco product in South Asia, is understudied. This case–control study in an Indian population demonstrates that a longer duration of tobacco smoking and chewing cessation is ...
Gayathri B. Pullat, Bastian Bohrmann, Grace Sarah George, Shubham Dikshit, Arjun Singh, Pankaj Chaturvedi, Rajesh Dikshit, Sarah Lewington, Sharayu Mhatre   +8 more
wiley   +1 more source

A Mathematical Model for Estimating Carbon Storage Dynamics of Forest Communities

Учёные записки Казанского университета: Серия Естественные науки
Using the JABOWA single-tree growth model, a program was designed to estimate carbon storage dynamics in the aboveground biomass of a mixed forest community.
Sh. Kh. Zaripov, D. A. Tarasova, M. V. Kozhevnikova, E. A. Kosterina   +3 more
doaj   +1 more source

Instrumental variables estimation of large demand systems with an application to fruit and vegetable demand and price index

Journal of the Agricultural and Applied Economics Association, EarlyView.
Abstract This paper derives the asymptotic properties of an iterated three‐stage least squares (I3SLS) estimator and applies it to estimate a Quadratic Almost Ideal Demand (QUAID) system for 47 fruits and vegetables with endogenous prices. We calculate an exact price index from the estimates and compare it with several commonly used price indexes.
Shaonan Wang, Chen Zhen, Peyton Ferrier
wiley   +1 more source