Evolution

Biosilica in Evolution, Morphogenesis, and Nanobiotechnology: Case Study Lake Baikal

May 9, 2010 By biotech-source.com Leave a Comment

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Lake Baikal is the oldest, deepest and most voluminous lake on Earth, comprising one fifth of the World’s unfrozen fresh water. It hosts the highest number of endemic animals recorded in any freshwater lake. Until recently it remained enigmatic why such a high diversity evolved in the isolated Lake Baikal. Focusing on the sponges (phylum Porifera) as an example, some answers are provided to fundamental questions on evolutionary forces. The characteristic feature of these animals is that they form their polymeric silicic acid skeleton enzymatically. This process is explored using modern molecular biological and cellular biological techniques to outline strategies to fabricate novel materials applicable in biomedicine and nanooptics.

Order from Amazon –> Biosilica in Evolution, Morphogenesis, and Nanobiotechnology: Case Study Lake Baikal

Filed Under: Biomedicine Books Tagged With: Amazon, Baikal, Biological Techniques, Biomedicine, Biosilica, Case, Case Study, Cellular, Characteristic Feature, Diversity, Earth, Endemic Animals, Evolution, Fresh Water, Freshwater Lake, Fundamental Questions, Lake, Lake Baikal, Morphogenesis, Nanobiotechnology, Novel Materials, Porifera, Product Description, Skeleton, Sponges, Study

Hydrogels: Biological Properties and Applications

May 8, 2010 By biotech-source.com Leave a Comment

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The studies on Biohydrogels have had a rapid, exponential evolution in the last decades. Starting from one of the first applications of hydrogels in surgery, polyvinylalcohol crosslinked with formaldehyde under the trade name of Ivalon, we passed through PolyHema hydrogels as contact lens materials, hydrophilic polyurethanes (HPU), biodegradable hydrogels for both reconstructive surgery and pharmaceutical delivery systems, and finally more recently, one decade old, the thermoreversible and transient network hydrogels. Of course all these classes of hydrogels have been always and continuosly studied, improving their performance and field of applications. Recently, most of them have been used as scaffolds for cells, even stem ones, for regenerative applications (tissue engineering). Nevertheless hydrogels are odd materials and many studies still have to be carried out to fully understand their behaviour from mechanical, physicochemical and biological point of view.

Order from Amazon –> Hydrogels: Biological Properties and Applications

Filed Under: Biomedicine Books Tagged With: Amazon, Applications, Biological, Biological Properties, Cells, Contact Lens, Decade, Decades, Delivery Systems, Evolution, Formaldehyde, Hydrogels, Ivalon, Lens Materials, Odd, Pharmaceutical Delivery, Point Of View, Product Description, Properties, Reconstructive Surgery, Scaffolds, Tissue Engineering, Transient Network

Harvard University Scientists says that ‘evolution of man’ scenarios have no scientific value

May 4, 2010 By biotech-source.com 4 Comments

“If itcould be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. So wrote Charles Darwin in `The Origin of Species`, where he made his theory of evolution public. The theory applied materialist philosophy to nature and challenged the consensus that life on earth is the artifact of the Creator. During the following 150 years, many in the scientific community assumed that Darwin had almost accomplished this task. Today, science demonstrates that they were mistaken. Findings in the last two decades alone have shattered the basis of the theory. Key branches of science, such as paleontology, biochemistry, population genetics, comparative anatomy, and biophysics, indicate one after another that natural laws and chance effects proposed by the theory cannot explain the origin of life. Life turns out to be infinitely more complex than Darwin imagined in his time demonstrating that his theory has absolutely broken down. Links for exploration: www.darwinism-watch.com www.fossil-museum.com www.ambersdenydarwin.com www.evolutiondocumentary.com www.living-fossils.com www.cambriananddarwin.com www.confessionsofevolutionists.com www.oldestmushroom.com www.reptile-fossils.com www.baltic-ambers.com www.thestoneage.org www.darwinismthegreatestlieinhistory.com www.evolutiontale.com www.whatdarwindidnotknow.com www.collapseofatheism.com www.darwinistdishonesty.com www …

Filed Under: Biochemistry News Tagged With: Artifact, Branches Of Science, Chance Effects, Charles Darwin, Comparative Anatomy, Consensus, Darwinism, Evolution, Evolution Of Man, Evolution Theory, Fossil Museum, Harvard, Harvard University, Life On Earth, Living Fossils, man', Origin Of Life, Origin Of Species, Population Genetics, Reptile Fossils, Says, scenarios, Scientific, Scientists, Theory Of Evolution, University, University Scientists, Value

This is Why Every Scientist Accepts Evolution

May 3, 2010 By biotech-source.com 25 Comments

READ DESCRIPTION: Please watch the video in its entirety- I know it starts off slow and technical. I discuss the actual, oft unmentioned reason every scientist accepts evolution. Ignorance is no longer an excuse. Special thanks to Greenman3610 for providing the audio track in the background. If you’re remotely interested in global warming, subscribing to him is not an option, its a requirement. -The C14 tree/etc example is just to show the strengths of independent methods. Embryology video: www.youtube.com Transitional Fossils: www.youtube.com Sources: Gilbert, SF (1997) Developmental Biology. Fifth edition. Sinauer Associates. Carroll, RL (1988) Vertebrate Paleontology and Evolution. New York, WH Freeman and Co. Futuyma, D. (1998) Evolutionary Biology. Third edition. Sunderland, Mass., Sinauer Associates. Gould, SJ (1990) “An earful of jaw.” Natural History 3: 12-23. Kardong, KV (2002) Vertebrates: Comparative Anatomy, Function, Evolution. Third ed. New York: McGraw Hill. Rubin, GM et al. (2000) “Comparative Genomics of the Eukaryotes.” Science 287: 2204-2218. [PubMed] Schmid, KJ, and Tautz, D. (1997) “A screen for fast evolving genes from Drosophila.” Proc. Natl. Acad. Sci. USA. 94: 9746-9750. www.pnas.org Sereno, PC (1999) “The Evolution of Dinosaurs.” Science 284: 2137-2147. [PubMed] Smit, AFA (1996) “The origin of interspersed repeats in the human genome.” Current Opinion in Genetics and Development 6: 743-748. [PubMed] Thornhill, RH, and Ussery, DW (2000) “A …