When viewing biological samples with a microscope, the light beam is disturbed if the lens of the objective is in a different medium than the sample. For example, when looking at a watery sample with a lens surrounded by ...
Optics & Photonics
Apr 18, 2024
0
127
Submerged macrophyte invasions and microplastic pollution are major challenges in the context of global change and pose a serious threat to aquatic environments. The presence of microplastics in aquatic ecosystems alters ...
Ecology
Apr 18, 2024
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12
In a recent paper published in Biological Conservation, iDiv researchers suggest that given amphibians' ability to act as "canaries in the coal mine" for aquatic environments, they should be reintroduced or rewilded. Rewilding ...
Plants & Animals
Apr 17, 2024
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6
Using a coffee grinder, a freezer and a furnace, researchers have discovered a chemical synergy between scrap tires and polystyrene can be harnessed to create sulfur-free, light oil.
Materials Science
Apr 17, 2024
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1
Plenty is known about the existential threat of climate change to plants and animals. But by comparison, we know very little about how microorganisms will be affected by climate change.
Ecology
Apr 17, 2024
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7
It's not at all clear that disinformation has, to date, swung an election that would otherwise have gone another way. But there is a strong sense that it has had a significant impact, nonetheless.
Social Sciences
Apr 17, 2024
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0
Researchers at Weill Cornell Medicine have developed a powerful, new technique to generate "movies" of changing protein structures and speeds of up to 50 frames per second.
Molecular & Computational biology
Apr 17, 2024
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33
Cardiovascular diseases, including stroke and myocardial infarction, are the world's leading causes of mortality, accounting for more than 18 million deaths a year. A team of KIT researchers has now identified a new cell ...
Cell & Microbiology
Apr 17, 2024
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19
If evolution was originally depicted as a tree, with different species branching off as new blooms, then new research shows how the branches may actually be more entangled. In "Hybrid speciation driven by multilocus introgression ...
Evolution
Apr 17, 2024
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22
In the field of organic chemistry, scientists are always looking out for new types of reactions to unlock synthesis routes for challenging compounds. Most of the progress that we have witnessed in pharmaceutics and agrochemicals ...
Analytical Chemistry
Apr 16, 2024
0
191
Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines. Among the most important topics are five unifying principles that can be said to be the fundamental axioms of modern biology:
Subdisciplines of biology are recognized on the basis of the scale at which organisms are studied and the methods used to study them: biochemistry examines the rudimentary chemistry of life; molecular biology studies the complex interactions of systems of biological molecules; cellular biology examines the basic building block of all life, the cell; physiology examines the physical and chemical functions of the tissues, organs, and organ systems of an organism; and ecology examines how various organisms interact and associate with their environment.
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