Results 91 to 100 of about 1,567,635 (316)

Classification and Protection Status of Remnant Natural Plant Communities in Arkansas [PDF]

open access: yes, 1981
A classification and inventory of Arkansas\u27s remaining tracts of relatively undisturbed vegetation was initiated in 1979. Based on extensive literature surveys and field work, the classification includes five physiognomic classes, 17 cover classes ...
Pell, William F.
core   +2 more sources

Nest predation in Afrotropical forest fragments shaped by inverse edge effects, timing of nest initiation and vegetation structure [PDF]

open access: yes, 2014
High levels of nest predation influence the population dynamics of many tropical birds, especially when deforestation alters nest predator communities. The consequences of tropical forest fragmentation on nest predation, however, remain poorly understood,
Callens, Tom   +4 more
core   +2 more sources

Shaping of Biohybrid Functional Living Materials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates a strategy for shaping living mycelium into functional materials by directing its natural growth. Nanoparticles armor hyphae, micron‐scale particles entangle within the network, and printed hydrogel architectures steer expansion, creating defined geometries.
Sarah Schyck   +3 more
wiley   +1 more source

Forest site conditions and other features of Scots pine stands favorable for bark beetles

open access: yesНаукові праці Лісівничої академії наук України, 2018
The aim of research was to evaluate the dependence of bark beetles foci distribution on forest site conditions as well as on Scots pine stands origin and other characteristics.
Valentyna L. Meshkova   +2 more
doaj   +1 more source

Does degradation from selective logging and illegal activities differently impact forest resources? A case study in Ghana [PDF]

open access: yes, 2016
Degradation, a reduction of the ecosystem’s capacity to supply goods and services, is widespread in tropical forests and mainly caused by human disturbance.
Cazzolla Gatti, R.   +11 more
core   +1 more source

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu   +4 more
wiley   +1 more source

Dynamics of tree species composition and characteristics of available space utilization in the natural forest of the National Nature Reserve Hrončokovský Grúň

open access: yesJournal of Forest Science, 2008
The paper deals with changes in the diameter structure of particular tree species as well as with the selected production characteristics in the mixed virgin forest Hrončokovský Grúň.
M. Saniga, M. Balanda
doaj   +1 more source

Simulating California reservoir operation using the classification and regression-tree algorithm combined with a shuffled cross-validation scheme [PDF]

open access: yes, 2016
The controlled outflows from a reservoir or dam are highly dependent on the decisions made by the reservoir operators, instead of a natural hydrological process.
Gao, X, Li, X, Sorooshian, S, Yang, T
core   +2 more sources

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu   +11 more
wiley   +1 more source

Effects of Public Compensation for Disaster Damages on Private Insurance and Forest Management Decisions [PDF]

open access: yes
Politicians have a tendency to compensate victims of natural disasters. This article explores the impact of such public relief programmes on a non-industrial private forest owner’s insurance expenditures or on forest management activities.
Marielle Brunette, Stephane Couture
core  

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