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TropHort: Biology, Agricultureand Geography Research
This page provides links to websites and science articles in biology, in the applied life sciences agriculture, horticulture and forestry, and the earth sciences. The site focusses on the horticulture of vegetables and fruits and contains information on n
Degranulation in mast cells
Mast cells protect living tissues against pathogens and are, therefore, ultimately involved in wound healing and immune system defense. Degranulation is the cellular process of releasing antimicrobial cytotoxic molecules by which these and other cells des
Dynamic equilibrium and balance of chemical fields in the ocean
The concentration changes of the oceanic fields change with sources, advection and mixing. Detergent and phosphate concentrations in the Atlantic Ocean change with horizontal advection. The detergent map reveals a powerful center of this pollutant south o
Light growth of the blue-green algae Anabaena circularis
Anabaena circularis is a cyanobacteria found as plankton. Cyanobacteria obtain their energy through photosynthesis and are, therefore, important primary producers of our oceans. As such they can create environmental hazards through algal bloom. On the oth
Evaluation of hazardous chemicals in Lake Ontario
Data collected during studies on Lake Ontario indicate that almost all reported measurements for total Cd exceed the recommended limit by at least 5 times. Values for Cu also showed a high percentage of measurements from all regions of the lake greater th
Gains and losses in soil nutrients associated with burning eucalypt rainforests
Burning eucalypt rainforests modifies the upper 2 cm of soil only. Over 7 t/ha organic C and 0.2 t/ha N are lost and less than 400 kg/ha of each Ca, Mg and K are added to the soil in form of ash. Such regeneration burns improve the nutritional status of t
Hydrolyzable tannins and proanthocyanidins from green tea
Tannins are astringent, bitter plant polyphenols which produce the astringent flavor of green tea. Tannins not only heal wounds and stop bleeding, they can also be effective in protecting the kidneys, and relieving of sore throats, diarrhea, dysentery, he
Inhibition of aflatoxin production by selected insecticides
Aflatoxins are highly toxic and carcinogenic mycotoxins found in many foods and feeds. The constant battle of primary producers against these poisons is intentionally left unmentioned by so-called "green" organisations. Besides the many fungicides which a
Mid Holocene climate in Northern Minnesota
Studies of the local climate of the mid-Holocene in Elk Lake, in North-Central Minnesota show that 7800-6700 yr BP the climate was colder and much drier than today and already between 6700 to 4000 yr BP the mean air temperatures approached the current mea
Life, earth and environmental sciences keywords starting with A
Provides definitions of keywords starting with the letter 'A' within the life, earth and environmental sciences and includes resources for further information.
Life, earth and environmental sciences keywords starting with B
Provides definitions of keywords starting with the letter 'B' within the life, earth and environmental sciences and includes resources for further information.
Life, earth and environmental sciences keywords starting with C
Provides definitions of keywords starting with the letter 'C' within the life, earth and environmental sciences and includes resources for further information.
Life, earth and environmental sciences keywords starting with D
Provides definitions of keywords starting with the letter 'D' within the life, earth and environmental sciences and includes resources for further information.
Repellency and toxicity of aromatic plant extracts against the mosquito
Essential-oil extracts from leaves, flowers and roots of aromatic plants were tested for their insecticidal activity against mosquito larvae. Extracts of Foeniculum vulgare (fennel) were the most toxic, followed by Ferula hermonis (Lebanese Viagra), Citru
Aspergillus flavus
Aspergillus flavus is a fungus of humans, animals, and insects producing significant quantities of aflatoxin. By infecting agricultural crops and stored grains the mold produces the most toxic and potent carcinogic metabolites such as aflatoxins and other
Climatological and environmental effects of rainforest destruction
Tropical rainforests cover 13% of the Earth's land surface, account for 50% of the world's forests and the vegetation contains 40% of the world's carbon. There are many methods to destruct rainforests including the oldest of slash-and-burn agriculture. Cl
A new species of...
Covers historic and current discoveries of existing and extinct animal, insect and plant species.
Alpha 1-antitrypsin
Deficiency in the glycoprotein can lead to chronic tissue breakdown in humans. NW Europeans are most at risk for carrying a mutant form of A1AT which makes them most vunerable to deciciency in the serine protease inhibitor and associated diseases includin
Auto radiographic detection of biological objects
Ionizing electromagnetic radiation makes it possible to view biological objects such as tissues, cells and viruses in exciting detail. Isotopically labelled substances are injected into the objects to be studied to follow their fate and localization withi
Cerebellum studies
The cerebellum or "little brain" is a brain region important for integration of sensory perception, coordination and motoric control. Many biological studies have pointed to multiple factors negatively impacting the functions of the cerebellum in both ani
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