Results 111 to 120 of about 245,808 (313)

A survey of computer representations of trees for realistic and efficient rendering [PDF]

open access: yes, 2006
This paper gives an overview of computer graphics representations of trees commonly used for the rendering of complex scene of vegetation. Looking for the right compromise between realism and efficiency has lead researchers to consider various types of ...
Boudon, Frédéric   +2 more
core  

Expression of cDNA for a bark lectin of Robinia in transgenic tobacco plants

open access: yesFEBS Letters, 1995
A cDNA encoding a bark lectin of Robinia pseudoacacia was introduced into tobacco plants. The expression of the lectin cDNA under control of the 35S promoter was confirmed by Western blot analysis and a hemagglutination assay of extracts of transgenic plants.
Tazaki, Kiyoshi   +4 more
openaire   +2 more sources

Deciphering the catalytic and pharmacological mechanisms of Coptis chinensis herbzymes to renovate intestinal microenvironment for colitis alleviation

open access: yesBMEMat, EarlyView.
The synthesized CCzymes possess both antioxidant enzyme activity and pharmacological properties inherent to Coptis chinensis. By their antioxidant enzyme activity, CCzymes can attenuate oxidative stress within the inflammatory region of ulcerative colitis (UC), while their pharmacological activity acts on macrophage polarization and the intestinal ...
Zhichao Deng   +10 more
wiley   +1 more source

Disturbances of Plant Communities : Spruce Bark Beetle Infestation

open access: yes, 2000
The spruce bark beetle (Dendroctonus rufipennis) is not new to the area, nor is it the only insect to affect the region's forests. Epidemic scale outbreaks are known to have occurred on the lower Kenai Peninsula as far back as the mid-1800s. The recent epidemic, however, has certainly been the most significant terrestrial ecological disturbance to the ...
Moss-Walker, C, Thomas, L
openaire   +1 more source

Molecular bases of insect odorant receptor function: specificity and evolution

open access: yesBiological Reviews, EarlyView.
ABSTRACT Insect odorant receptors (ORs) are a class of chemoreceptors that insects use to detect volatile cues in their environment. In recent years, major advances in the field of structural biology have made it possible to obtain the first structures of insect ORs.
Zibo Li   +5 more
wiley   +1 more source

Current status of herbal and their future perspectives [PDF]

open access: yes, 2007
Traditional medicine is the synthesis of therapeutic experience of generations of practicing physicians of indigenous systems of medicine. Throughout the history of mankind, many infectious diseases have been treated with herbals.
Ponnampalam Gopalakrishnakone   +1 more
core   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

The flexible, the stereotyped and the in‐between: putting together the combinatory tool use origins hypothesis

open access: yesBiological Reviews, EarlyView.
ABSTRACT Tool use research has long made the distinction between tool using that is considered learned and flexible, and that which appears to be instinctive and stereotyped. However, animals with an inherited tool use specialisation can exhibit flexibility, while tool use that is spontaneously innovated can be limited in its expression and facilitated
Jennifer A. D. Colbourne   +1 more
wiley   +1 more source

Daya Inhibisi Tripsin Beberapa Ekstrak Tanaman Suku Leguminosa [PDF]

open access: yes, 1994
In search of potensial protease inhibitor, especially those which inhibit trypsin activity, preliminary screening of some plant extracts of Legumlnoceae family has been carried out. From 9 (nine) plant extracts examined, those which gave potential enzyme
Hadiman, H. (Hadiman), Hartati, S. (Sri)
core  

Lasiodiplodia iraniensis associated with Bahia bark scaling in grapefruit plants

open access: yesCiência Rural
ABSTRACT: Bahia Bark Scaling (BBS) is a disease that affects citrus and its etiology remains unknown. This study investigated the association of a fungal agent with BBS symptoms in grapefruit plants. Eight fungal isolates were recovered from the field and identified at the genus level by morphological methods, of which two were used in inoculations on ...
Henrique Castro Gama   +3 more
openaire   +2 more sources

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