Sunday, June 17, 2012

ScienceDaily: Biochemistry News

ScienceDaily: Biochemistry Newshttp://www.sciencedaily.com/news/matter_energy/biochemistry/ Read the latest research in biochemistry -- protein structure and function, RNA and DNA, enzymes and biosynthesis and more biochemistry news.en-usSat, 16 Jun 2012 05:05:01 EDTSat, 16 Jun 2012 05:05:01 EDT60ScienceDaily: Biochemistry Newshttp://www.sciencedaily.com/images/logosmall.gifhttp://www.sciencedaily.com/news/matter_energy/biochemistry/ For more science articles, visit ScienceDaily.Improving high-tech medical scannershttp://www.sciencedaily.com/releases/2012/06/120613153331.htm A powerful color-based imaging technique is making the jump from remote sensing to the operating room. Scientists are working to ensure it performs as well when spotting cancer cells in the body as it does with oil spills in the ocean.Wed, 13 Jun 2012 15:33:33 EDThttp://www.sciencedaily.com/releases/2012/06/120613153331.htmScientists synthesize first genetically evolved semiconductor materialhttp://www.sciencedaily.com/releases/2012/06/120613133341.htm In the not-too-distant future, scientists may be able to use DNA to grow their own specialized materials, thanks to the concept of directed evolution. Scientists have, for the first time, used genetic engineering and molecular evolution to develop the enzymatic synthesis of a semiconductor.Wed, 13 Jun 2012 13:33:33 EDThttp://www.sciencedaily.com/releases/2012/06/120613133341.htmNew energy source for future medical implants: Sugarhttp://www.sciencedaily.com/releases/2012/06/120613133150.htm An implantable fuel cell could power neural prosthetics that help patients regain control of limbs. Engineers have developed a fuel cell that runs on the same sugar that powers human cells: glucose. This glucose fuel cell could be used to drive highly efficient brain implants of the future, which could help paralyzed patients move their arms and legs again.Wed, 13 Jun 2012 13:31:31 EDThttp://www.sciencedaily.com/releases/2012/06/120613133150.htmLittle mighty creature of the ocean inspires strong new material for medical implants and armourhttp://www.sciencedaily.com/releases/2012/06/120613102130.htm A scientist may be onto an ocean of discovery because of his research into a little sea creature called the mantis shrimp. The research is likely to lead to making ceramics -- today's preferred material for medical implants and military body armour -- many times stronger. The mantis shrimp's can shatter aquarium glass and crab shells alike.Wed, 13 Jun 2012 10:21:21 EDThttp://www.sciencedaily.com/releases/2012/06/120613102130.htmProtein residues kiss, don't tell: Genomes reveal contacts, scientists refine methods for protein-folding predictionhttp://www.sciencedaily.com/releases/2012/06/120612145139.htm Researchers have created a computational tool to help predict how proteins fold by finding amino acid pairs that are distant in sequence but change together. Protein interactions offer clues to the treatment of disease, including cancer.Tue, 12 Jun 2012 14:51:51 EDThttp://www.sciencedaily.com/releases/2012/06/120612145139.htmPotential carbon capture role for new CO2-absorbing materialhttp://www.sciencedaily.com/releases/2012/06/120612101458.htm A novel porous material that has unique carbon dioxide retention properties has just been developed.Tue, 12 Jun 2012 10:14:14 EDThttp://www.sciencedaily.com/releases/2012/06/120612101458.htmWorkings behind promising inexpensive catalyst revealedhttp://www.sciencedaily.com/releases/2012/06/120611193636.htm A newly developed carbon nanotube material could help lower the cost of fuel cells, catalytic converters and similar energy-related technologies by delivering a substitute for expensive platinum catalysts.Mon, 11 Jun 2012 19:36:36 EDThttp://www.sciencedaily.com/releases/2012/06/120611193636.htmNanoparticles in polluted air, smoke & nanotechnology products have serious impact on healthhttp://www.sciencedaily.com/releases/2012/06/120611105311.htm New groundbreaking research has found that exposure to nanoparticles can have a serious impact on health, linking it to rheumatoid arthritis and the development of other serious autoimmune diseases. The findings have health and safety implications for the manufacture, use and ultimate disposal of nanotechnology products and materials. They also identified new cellular targets for the development of potential drug therapies in combating the development of autoimmune diseases.Mon, 11 Jun 2012 10:53:53 EDThttp://www.sciencedaily.com/releases/2012/06/120611105311.htmA SMART(er) way to track influenzahttp://www.sciencedaily.com/releases/2012/06/120611092345.htm Researchers have created a reliable and fast flu-detection test that can be carried in a first-aid kit. The novel prototype device isolates influenza RNA using a combination of magnetics and microfluidics, then amplifies and detects probes bound to the RNA. The technology could lead to real-time tracking of influenza.Mon, 11 Jun 2012 09:23:23 EDThttp://www.sciencedaily.com/releases/2012/06/120611092345.htmResearchers watch tiny living machines self-assemblehttp://www.sciencedaily.com/releases/2012/06/120610151304.htm Enabling bioengineers to design new molecular machines for nanotechnology applications is one of the possible outcomes of a new study. Scientists have developed a new approach to visualize how proteins assemble, which may also significantly aid our understanding of diseases such as Alzheimer's and Parkinson's, which are caused by errors in assembly.Sun, 10 Jun 2012 15:13:13 EDThttp://www.sciencedaily.com/releases/2012/06/120610151304.htmPhotosynthesis: A new way of looking at photosystem IIhttp://www.sciencedaily.com/releases/2012/06/120606155808.htm Using ultrafast, intensely bright pulses of X-rays scientists have obtained the first ever images at room temperature of photosystem II, a protein complex critical for photosynthesis and future artificial photosynthetic systems.Wed, 06 Jun 2012 15:58:58 EDThttp://www.sciencedaily.com/releases/2012/06/120606155808.htm1 million billion billion billion billion billion billion: Number of undiscovered drugshttp://www.sciencedaily.com/releases/2012/06/120606132316.htm A new voyage into "chemical space" ? occupied not by stars and planets but substances that could become useful in everyday life ? has concluded that scientists have synthesized barely one tenth of one percent of potential medicines. The report estimates that the actual number of these so-called "small molecules" could be one novemdecillion (that's one with 60 zeroes), more than some estimates of the number of stars in the universe.Wed, 06 Jun 2012 13:23:23 EDThttp://www.sciencedaily.com/releases/2012/06/120606132316.htmHalogen bonding helps design new drugshttp://www.sciencedaily.com/releases/2012/06/120605121639.htm Halogens particularly chlorine, bromine, and iodine ? have a unique quality which allows them to positively influence the interaction between molecules. This ?halogen bonding? has been employed in the area of materials science for some time, but is only now finding applications in the life sciences.Tue, 05 Jun 2012 12:16:16 EDThttp://www.sciencedaily.com/releases/2012/06/120605121639.htmFaster, more sensitive photodetector created by tricking graphenehttp://www.sciencedaily.com/releases/2012/06/120605102842.htm Researchers have developed a highly sensitive detector of infrared light that can be used in applications ranging from detection of chemical and biochemical weapons from a distance and better airport body scanners to chemical analysis in the laboratory and studying the structure of the universe through new telescopes.Tue, 05 Jun 2012 10:28:28 EDThttp://www.sciencedaily.com/releases/2012/06/120605102842.htmFilming life in the fast lanehttp://www.sciencedaily.com/releases/2012/06/120604092858.htm A new microscope enabled scientists to film a fruit fly embryo, in 3D, from when it was about two-and-a-half hours old until it walked away from the microscope as a larva.Mon, 04 Jun 2012 09:28:28 EDThttp://www.sciencedaily.com/releases/2012/06/120604092858.htmExpanding the genetic alphabet may be easier than previously thoughthttp://www.sciencedaily.com/releases/2012/06/120603191722.htm A new study suggests that the replication process for DNA -- the genetic instructions for living organisms that is composed of four bases (C, G, A and T) -- is more open to unnatural letters than had previously been thought. An expanded "DNA alphabet" could carry more information than natural DNA, potentially coding for a much wider range of molecules and enabling a variety of powerful applications, from precise molecular probes and nanomachines to useful new life forms.Sun, 03 Jun 2012 19:17:17 EDThttp://www.sciencedaily.com/releases/2012/06/120603191722.htmNanotechnology breakthrough could dramatically improve medical testshttp://www.sciencedaily.com/releases/2012/05/120531165752.htm A laboratory test used to detect disease and perform biological research could be made more than 3 million times more sensitive, according to researchers who combined standard biological tools with a breakthrough in nanotechnology.Thu, 31 May 2012 16:57:57 EDThttp://www.sciencedaily.com/releases/2012/05/120531165752.htmX-ray laser probes biomolecules to individual atomshttp://www.sciencedaily.com/releases/2012/05/120531145728.htm Scientists have demonstrated how the world's most powerful X-ray laser can assist in cracking the structures of biomolecules, and in the processes helped to pioneer critical new investigative avenues in biology.Thu, 31 May 2012 14:57:57 EDThttp://www.sciencedaily.com/releases/2012/05/120531145728.htmBuilding molecular 'cages' to fight diseasehttp://www.sciencedaily.com/releases/2012/05/120531145720.htm Biochemists have designed specialized proteins that assemble themselves to form tiny molecular cages hundreds of times smaller than a single cell. The creation of these miniature structures may be the first step toward developing new methods of drug delivery or even designing artificial vaccines.Thu, 31 May 2012 14:57:57 EDThttp://www.sciencedaily.com/releases/2012/05/120531145720.htmFree-electron lasers reveal detailed architecture of proteinshttp://www.sciencedaily.com/releases/2012/05/120531145630.htm Ultrashort flashes of X-radiation allow atomic structures of macromolecules to be obtained even from tiny protein crystals.Thu, 31 May 2012 14:56:56 EDThttp://www.sciencedaily.com/releases/2012/05/120531145630.htmRewriting DNA to understand what it sayshttp://www.sciencedaily.com/releases/2012/05/120531102207.htm Our ability to "read" DNA has made tremendous progress in the past few decades, but the ability to understand and alter the genetic code, that is, to "rewrite" the DNA-encoded instructions, has lagged behind. A new study advances our understanding of the genetic code: It proposes a way of effectively introducing numerous carefully planned DNA segments into genomes of living cells and of testing the effects of these changes. New technology speeds up DNA "rewriting" and measures the effects of the changes in living cells.Thu, 31 May 2012 10:22:22 EDThttp://www.sciencedaily.com/releases/2012/05/120531102207.htmNanodevice manufacturing strategy using DNA 'Building blocks'http://www.sciencedaily.com/releases/2012/05/120530152203.htm Researchers have developed a method for building complex nanostructures out of interlocking DNA "building blocks" that can be programmed to assemble themselves into precisely designed shapes. With further development, the technology could one day enable the creation of new nanoscale devices that deliver drugs directly to disease sites.Wed, 30 May 2012 15:22:22 EDThttp://www.sciencedaily.com/releases/2012/05/120530152203.htmBioChip may make diagnosis of leukemia and HIV faster, cheaperhttp://www.sciencedaily.com/releases/2012/05/120530104034.htm Inexpensive, portable devices that can rapidly screen cells for leukemia or HIV may soon be possible thanks to a chip that can produce three-dimensional focusing of a stream of cells, according to researchers.Wed, 30 May 2012 10:40:40 EDThttp://www.sciencedaily.com/releases/2012/05/120530104034.htmCellular computers? Scientists train cells to perform boolean functionshttp://www.sciencedaily.com/releases/2012/05/120530100041.htm Scientists have engineered cells that behave like AND and OR Boolean logic gates, producing an output based on one or more unique inputs. This feat could eventually help researchers create computers that use cells as tiny circuits.Wed, 30 May 2012 10:00:00 EDThttp://www.sciencedaily.com/releases/2012/05/120530100041.htmIon-based electronic chip to control muscles: Entirely new circuit technology based on ions and moleculeshttp://www.sciencedaily.com/releases/2012/05/120529113543.htm An integrated chemical chip has just been developed. An advantage of chemical circuits is that the charge carrier consists of chemical substances with various functions. This means that we now have new opportunities to control and regulate the signal paths of cells in the human body. The chemical chip can control the delivery of the neurotransmitter acetylcholine. This enables chemical control of muscles, which are activated when they come into contact with acetylcholine.Tue, 29 May 2012 11:35:35 EDThttp://www.sciencedaily.com/releases/2012/05/120529113543.htmMethod for building artificial tissue devisedhttp://www.sciencedaily.com/releases/2012/05/120528154859.htm Physicists have developed a method that models biological cell-to-cell adhesion that could also have industrial applications.Mon, 28 May 2012 15:48:48 EDThttp://www.sciencedaily.com/releases/2012/05/120528154859.htmSmallest possible five-ringed structure made: 'Olympicene' molecule built using clever synthetic organic chemistryhttp://www.sciencedaily.com/releases/2012/05/120528100253.htm Scientists have created and imaged the smallest possible five-ringed structure -- about 100,000 times thinner than a human hair. Dubbed 'olympicene', the single molecule was brought to life in a picture thanks to a combination of clever synthetic chemistry and state-of-the-art imaging techniques.Mon, 28 May 2012 10:02:02 EDThttp://www.sciencedaily.com/releases/2012/05/120528100253.htm'Unzipped' carbon nanotubes could help energize fuel cells and batterieshttp://www.sciencedaily.com/releases/2012/05/120527153818.htm Multi-walled carbon nanotubes riddled with defects and impurities on the outside could replace some of the expensive platinum catalysts used in fuel cells and metal-air batteries, according to scientists.Sun, 27 May 2012 15:38:38 EDThttp://www.sciencedaily.com/releases/2012/05/120527153818.htmSuper-sensitive tests could detect diseases earlierhttp://www.sciencedaily.com/releases/2012/05/120527153718.htm Scientists have developed an ultra-sensitive test that should enable them to detect signs of a disease in its earliest stages.Sun, 27 May 2012 15:37:37 EDThttp://www.sciencedaily.com/releases/2012/05/120527153718.htmCell?s transport pods look like a molecular version of robots from Transformershttp://www.sciencedaily.com/releases/2012/05/120525103614.htm Images of the cell's transport pods have revealed a molecular version of the robots from Transformers. Previously, scientists had been able to create and determine the structure of 'cages' formed by parts of the protein coats that encase other types of vesicles, but this study was the first to obtain high-resolution images of complete vesicles, budded from a membrane.Fri, 25 May 2012 10:36:36 EDThttp://www.sciencedaily.com/releases/2012/05/120525103614.htmDiscarded data may hold the key to a sharper view of moleculeshttp://www.sciencedaily.com/releases/2012/05/120524143527.htm There's nothing like a new pair of eyeglasses to bring fine details into sharp relief. For scientists who study the large molecules of life from proteins to DNA, the equivalent of new lenses have come in the form of an advanced method for analyzing data from X-ray crystallography experiments.Thu, 24 May 2012 14:35:35 EDThttp://www.sciencedaily.com/releases/2012/05/120524143527.htmNewly modified nanoparticle opens window on future gene editing technologieshttp://www.sciencedaily.com/releases/2012/05/120524123232.htm Researchers are using nanoparticles to simultaneously deliver proteins and DNA into plant cells. The technology could allow more sophisticated and targeted editing of plant genomes. And that could help researchers develop crops that adapt to changing climates and resist pests.Thu, 24 May 2012 12:32:32 EDThttp://www.sciencedaily.com/releases/2012/05/120524123232.htmUnusual quantum effect discovered in earliest stages of photosynthesishttp://www.sciencedaily.com/releases/2012/05/120524092932.htm Quantum physics and plant biology seem like two branches of science that could not be more different, but surprisingly they may in fact be intimately tied. Scientists have discovered an unusual quantum effect in the earliest stages of photosynthesis.Thu, 24 May 2012 09:29:29 EDThttp://www.sciencedaily.com/releases/2012/05/120524092932.htmBig step toward quantum computing: Efficient and tunable interface for quantum networkshttp://www.sciencedaily.com/releases/2012/05/120523135527.htm Quantum computers may someday revolutionize the information world. But in order for quantum computers at distant locations to communicate with one another, they have to be linked together in a network. While several building blocks for a quantum computer have already been successfully tested in the laboratory, a network requires one additonal component: A reliable interface between computers and information channels. Austrian physicists now report the construction of an efficient and tunable interface for quantum networks.Wed, 23 May 2012 13:55:55 EDThttp://www.sciencedaily.com/releases/2012/05/120523135527.htmRapid DNA sequencing may soon be routine part of each patient's medical recordhttp://www.sciencedaily.com/releases/2012/05/120522152655.htm Rapid DNA sequencing may soon become a routine part of each individual's medical record, providing enormous information previously sequestered in the human genome's 3 billion nucleotide bases. Recent advances in sequencing technology using a tiny orifice known as a nanopore are covered in a new a article.Tue, 22 May 2012 15:26:26 EDThttp://www.sciencedaily.com/releases/2012/05/120522152655.htmMethod to strengthen proteins with polymershttp://www.sciencedaily.com/releases/2012/05/120521164104.htm Scientists have synthesized polymers to attach to proteins in order to stabilize them during shipping, storage and other activities. The study findings suggest that these polymers could be useful in stabilizing protein formulations.Mon, 21 May 2012 16:41:41 EDThttp://www.sciencedaily.com/releases/2012/05/120521164104.htmTotally RAD: Bioengineers create rewritable digital data storage in DNAhttp://www.sciencedaily.com/releases/2012/05/120521163751.htm Scientists have devised a method for repeatedly encoding, storing and erasing digital data within the DNA of living cells. In practical terms, they have devised the genetic equivalent of a binary digit -- a "bit" in data parlance.Mon, 21 May 2012 16:37:37 EDThttp://www.sciencedaily.com/releases/2012/05/120521163751.htmDon't like blood tests? New microscope uses rainbow of light to image the flow of individual blood cellshttp://www.sciencedaily.com/releases/2012/05/120521115654.htm Blood tests convey vital medical information, but the sight of a needle often causes anxiety and results take time. A new device however, can reveal much the same information as a traditional blood test in real-time, simply by shining a light through the skin. This portable optical instrument is able to provide high-resolution images of blood coursing through veins without the need for harsh fluorescent dyes.Mon, 21 May 2012 11:56:56 EDThttp://www.sciencedaily.com/releases/2012/05/120521115654.htmZooming in on bacterial weapons in 3-D: Structure of bacterial injection needles deciphered at atomic resolutionhttp://www.sciencedaily.com/releases/2012/05/120521103808.htm The plague, bacterial dysentery, and cholera have one thing in common: These dangerous diseases are caused by bacteria which infect their host using a sophisticated injection apparatus. Through needle-like structures, they release molecular agents into their host cell, thereby evading the immune response. Researchers have now elucidated the structure of such a needle at atomic resolution. Their findings might contribute to drug tailoring and the development of strategies which specifically prevent the infection process.Mon, 21 May 2012 10:38:38 EDThttp://www.sciencedaily.com/releases/2012/05/120521103808.htmEngineers use droplet microfluidics to create glucose-sensing microbeadshttp://www.sciencedaily.com/releases/2012/05/120518132657.htm Tiny beads may act as minimally invasive glucose sensors for a variety of applications in cell culture systems and tissue engineering.Fri, 18 May 2012 13:26:26 EDThttp://www.sciencedaily.com/releases/2012/05/120518132657.htmChemists merge experimentation with theory in understanding of water moleculehttp://www.sciencedaily.com/releases/2012/05/120518081147.htm Using newly developed imaging technology, chemists have confirmed years of theoretical assumptions about water molecules, the most abundant and one of the most frequently studied substances on Earth.Fri, 18 May 2012 08:11:11 EDThttp://www.sciencedaily.com/releases/2012/05/120518081147.htmDiamond used to produce graphene quantum dots and nano-ribbons of controlled structurehttp://www.sciencedaily.com/releases/2012/05/120517193141.htm Researchers have come closer to solving an old challenge of producing graphene quantum dots of controlled shape and size at large densities, which could revolutionize electronics and optoelectronics.Thu, 17 May 2012 19:31:31 EDThttp://www.sciencedaily.com/releases/2012/05/120517193141.htmIn chemical reactions, water adds speed without heathttp://www.sciencedaily.com/releases/2012/05/120517143506.htm Scientists have discovered how adding trace amounts of water can tremendously speed up chemical reactions -? such as hydrogenation and hydrogenolysis ?- in which hydrogen is one of the reactants, or starting materials.Thu, 17 May 2012 14:35:35 EDThttp://www.sciencedaily.com/releases/2012/05/120517143506.htmPlant protein discovery could boost bioeconomyhttp://www.sciencedaily.com/releases/2012/05/120514104848.htm Three proteins have been found to be involved in the accumulation of fatty acids in plants. The discovery could help plant scientists boost seed oil production in crops. And that could boost the production of biorenewable fuels and chemicals.Mon, 14 May 2012 10:48:48 EDThttp://www.sciencedaily.com/releases/2012/05/120514104848.htmPhotonics: New approach to generating terahertz radiation will lead to new imaging and sensing applicationshttp://www.sciencedaily.com/releases/2012/05/120510095622.htm A new approach to generating terahertz radiation will lead to new imaging and sensing applications. The low energy of the radiation means that it can pass through materials that are otherwise opaque, opening up uses in imaging and sensing ? for example, in new security scanners. In practice, however, applications have been difficult to implement.Thu, 10 May 2012 09:56:56 EDThttp://www.sciencedaily.com/releases/2012/05/120510095622.htmIt's a trap: New lab technique captures microRNA targetshttp://www.sciencedaily.com/releases/2012/05/120509135959.htm To better understand how microRNAs -- small pieces of genetic material -- influence human health and disease, scientists first need to know which microRNAs act upon which genes. To do this scientists developed miR-TRAP, a new easy-to-use method to directly identify microRNA targets in cells.Wed, 09 May 2012 13:59:59 EDThttp://www.sciencedaily.com/releases/2012/05/120509135959.htmQuantum dots brighten the future of lightinghttp://www.sciencedaily.com/releases/2012/05/120508173349.htm Researchers have boosted the efficiency of a novel source of white light called quantum dots more than tenfold, making them of potential interest for commercial applications.Tue, 08 May 2012 17:33:33 EDThttp://www.sciencedaily.com/releases/2012/05/120508173349.htmMolecular container gives drug dropouts a second chancehttp://www.sciencedaily.com/releases/2012/05/120508152129.htm Chemists have designed a molecular container that can hold drug molecules and increase their solubility, in one case up to nearly 3,000 times.Tue, 08 May 2012 15:21:21 EDThttp://www.sciencedaily.com/releases/2012/05/120508152129.htmUltrasound idea: Prototype bioreactor evaluates engineered tissue while creating ithttp://www.sciencedaily.com/releases/2012/05/120503194229.htm Researchers have developed a prototype bioreactor that both stimulates and evaluates tissue as it grows, mimicking natural processes while eliminating the need to stop periodically to cut up samples for analysis.Thu, 03 May 2012 19:42:42 EDThttp://www.sciencedaily.com/releases/2012/05/120503194229.htmNew technique generates predictable complex, wavy shapes: May explain brain folds and be useful for drug deliveryhttp://www.sciencedaily.com/releases/2012/05/120503120130.htm A new technique predictably generates complex, wavy shapes and may help improve drug delivery and explain natural patterns from brain folds to bell peppers.Thu, 03 May 2012 12:01:01 EDThttp://www.sciencedaily.com/releases/2012/05/120503120130.htmAt smallest scale, liquid crystal behavior portends new materialshttp://www.sciencedaily.com/releases/2012/05/120502132953.htm Liquid crystals, the state of matter that makes possible the flat screen technology now commonly used in televisions and computers, may have some new technological tricks in store.Wed, 02 May 2012 13:29:29 EDThttp://www.sciencedaily.com/releases/2012/05/120502132953.htmElectronic nanotube nose out in fronthttp://www.sciencedaily.com/releases/2012/05/120502112910.htm A new nanotube super sensor is able to detect subtle differences with a single sniff. For example, the chemical dimethylsulfone is associated with skin cancer. The human nose cannot detect this volatile but it could be detected with the new sensor at concentrations as low as 25 parts per billion.Wed, 02 May 2012 11:29:29 EDThttp://www.sciencedaily.com/releases/2012/05/120502112910.htmBiomimetic polymer synthesis enhances structure controlhttp://www.sciencedaily.com/releases/2012/05/120502091839.htm A new biomimetic approach to synthesising polymers will offer unprecedented control over the final polymer structure and yield advances in nanomedicine, researchers say.Wed, 02 May 2012 09:18:18 EDThttp://www.sciencedaily.com/releases/2012/05/120502091839.htmHigh-powered microscopes reveal inner workings of sex cellshttp://www.sciencedaily.com/releases/2012/05/120501085502.htm Scientists using high-powered microscopes have made a stunning observation of the architecture within a cell ? and identified for the first time how the architecture changes during the formation of gametes, also known as sex cells, in order to successfully complete? the process.Tue, 01 May 2012 08:55:55 EDThttp://www.sciencedaily.com/releases/2012/05/120501085502.htmHigh-strength silk scaffolds improve bone repairhttp://www.sciencedaily.com/releases/2012/04/120430151752.htm Biomedical engineers have demonstrated the first all-polymeric bone scaffold that is fully biodegradable and offers significant mechanical support during repair. The technique uses silk fibers to reinforce a silk matrix. Adding microfibers to the scaffolds enhances bone formation and mechanical properties. It could improve repair after accident or disease.Mon, 30 Apr 2012 15:17:17 EDThttp://www.sciencedaily.com/releases/2012/04/120430151752.htmMolecular spectroscopy tracks living mammalian cells in real time as they differentiatehttp://www.sciencedaily.com/releases/2012/04/120430114937.htm Cells regulate their functions by adding or subtracting phosphates from proteins. If scientists could study the process in detail, in individual cells over time, understanding and treating diseases would be greatly aided. Formerly this was impossible without damaging the cells or interfering with the process itself, but scientists have now achieved the goal by using bright infrared beams and a technique called Fourier transform spectromicroscopy.Mon, 30 Apr 2012 11:49:49 EDThttp://www.sciencedaily.com/releases/2012/04/120430114937.htmElectric charge disorder: A key to biological order?http://www.sciencedaily.com/releases/2012/04/120430105356.htm Researchers have shown how small random patches of disordered, frozen electric charges can make a difference when they are scattered on surfaces that are overall neutral. These charges induce a twisting force that is strong enough to be felt as far as nanometers or even micrometers away. These results could help scientists to understand phenomena that occur on surfaces such as those of large biological molecules.Mon, 30 Apr 2012 10:53:53 EDThttp://www.sciencedaily.com/releases/2012/04/120430105356.htmBejeweled: Nanotech gets boost from nanowire decorationshttp://www.sciencedaily.com/releases/2012/04/120427100113.htm Engineers have found a novel method for "decorating" nanowires with chains of tiny particles to increase their electrical and catalytic performance. The new technique is simpler, faster and more effective than earlier methods and could lead to better batteries, solar cells and catalysts.Fri, 27 Apr 2012 10:01:01 EDThttp://www.sciencedaily.com/releases/2012/04/120427100113.htmFirst custom designed protein crystal createdhttp://www.sciencedaily.com/releases/2012/04/120425140403.htm Protein design is technique that is increasingly valuable to a variety of fields, from biochemistry to therapeutics to materials engineering. Chemists have taken this kind of design a step further; Using computational methods, they have created the first custom-designed protein crystal.Wed, 25 Apr 2012 14:04:04 EDThttp://www.sciencedaily.com/releases/2012/04/120425140403.htmCompressed sensing allows imaging of live cell structureshttp://www.sciencedaily.com/releases/2012/04/120423104019.htm Researchers have advanced the ability to view a clear picture of a single cellular structure in motion. By identifying molecules using compressed sensing, this new method provides needed spatial resolution plus a faster temporal resolution.Mon, 23 Apr 2012 10:40:40 EDThttp://www.sciencedaily.com/releases/2012/04/120423104019.htm

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Are tax exemptions for religious groups a ... - Finance information

. Question by Will not get fooled again : Are tax exemptions for religious groups a violation of the First Amendment
By giving churches a tax exemption, is not government passing a law that aids religion? Should we be giving tax exemptions for mansions, luxury cars, and private aircraft? What about holdings of land not used for religious purposes? Best answer:

Answer by American Man
no if they did have to pay then that would be double taxation and it would conflict with ?separation of church and state.?

Give your answer to this question below!

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Android Central Editors' App Picks for June 16, 2012

Android Central Apps of the Week

Here we are, back again. With the wedding behind me last week things are back to normal (for the most part) and here we are with quite a list. Without any further delay let's hit the break and check out some of our favorite picks from this week -- there are a bunch here! -- and as always be sure to let us know about your favorites as well!

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Friday, May 11, 2012

When Wikipedia Vandals Attack

If you've been involved in a project that has been documented on Wikipedia and has earned its own Wikipedia page, it can be disconcerting to visit one day and see the page vandalized, as happened to an associate of mine recently. This incident led to a frantic email exchange. One consideration was how to deal with the problem without getting tagged as the vandal -- Wikipedia is collaborative, after all.


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Thursday, May 10, 2012

SEC sues ex-Detroit mayor for influence peddling

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HP intros three Compaq desktops, two displays for the business set

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In addition to all the laptops and printers HP announced today, it also has a few goodies for the cube monkeys out there. The company just outed a trio of three business-grade desktops, along with two monitors. First up, there's the Compaq Elite 8300, which is aimed squarely at large businesses with IT-friendly tools like TPM, Intel's vPro technology and remote management via LANdesk. The Compaq Pro 4300, meanwhile, targets small businesses with its compact form factor and features like HP's Chassis Security Kit. The mid-size Compaq Pro 6300 aims to please both groups, with TPM protection, HP's BIOS solutions and the same 15-month life cycle program offered on the higher-end Elite 8300. Regardless of the model, you're looking at Ivy Bridge CPUs coupled with Intel's most up-to-date integrated graphics. Expect the 6300 and 8300 to land on June 4th, priced starting at $579 and $679, respectively. You'll have to wait a bit longer for the 4300, though: it'll arrive in Asia on the 22nd, and make its way to the US sometime this fall.

As for those monitors, HP's introducing one of the nondescript variety, and another with a touchscreen. Starting with the former, the Compaq L2206tm has a 21.5-inch (1920 x 1080) display with a VGA port, two USB 2.0 sockets and DVI output with HDCP support. Meanwhile, the finger-friendly Compaq LA2405x has a 24-inch, 1080p screen, along with VGA, DVI and DisplayPort output -- not to mention, a pair of USB 2.0 ports. Either way, they both have a 72 percent color gamut, 250-nit brightness level and viewing angles rated for 170 degrees across and 160 degrees vertical. The multitouch LA2405x is available today for $269, while the L2206tm is coming June 4th for $279. All those details and more in the press release after the break.

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HP intros three Compaq desktops, two displays for the business set originally appeared on Engadget on Tue, 08 May 2012 23:00:00 EDT. Please see our terms for use of feeds.

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The Right SEO Tactics for Small Business

When it comes to SEO, many business owners are overwhelmed. There?s so much information out there, much of it conflicting, making it nearly impossible to drill down to the right strategies you should be employing. In this post I?ll try to walk through several of the considerations you should be taking into account in determining which SEO tactics to prioritize for your business.

seo

Different people often describe different SEO tactics in different ways, but at a high level we can think about SEO in two basic categories:

  • On-site SEO: This is basically anything that you?d do to your own site to generate more relevant search engine traffic. This includes specific on-page elements such as title tags, image ALT tags, meta descriptions, internal linking strategies, as well as technical SEO (i.e. duplicate content issues, etc.). On-site SEO is important for any Website, but may be more or less valuable depending on the type of site you have ? for instance this should often be the primary focus for larger websites that have a lot of robust content, broad distribution ?built in,? and already have a lot of authority and trust with search engines (such as news sites).
  • Off-site SEO: This is essentially a variety of things that would be classified as ?link building? such as guest blogging, link outreach and producing share-worthy content. If your site has a relatively small amount of content and is targeting a smaller basket of keywords that are highly relevant to your business, after you get the basics in place with regards to on-page SEO your focus will likely be on building links to help rank for your core terms.

Choosing the right SEO strategies ? those that make the most sense for your business ? is the first step to a successful campaign. This is followed by the decision between managing these tasks in-house and outsourcing to an SEO agency. Here?s a breakdown of the main strategies falling under each category and how to determine what tactics will make the most senseyou?re your business.

On-Site SEO

On-site content: The content appearing on your Website is the foundation on which you can build the rest of your SEO strategy. Without a solid base of content, traffic-building efforts will produce lackluster results. If your business involves highly technical information, and you have someone on staff with both the bandwidth and the skills to produce quality content, it makes more sense to retain content production in-house.

On the other hand, if your content needs exceed the capabilities of your staff, options include outsourcing to a content provider or hiring a dedicated staff writer. It?s also possible to maintain production in-house and outsource to an editor to refine content before publishing.

Blogs: Blogs alone can require a significant time commitment. But the nice thing about blogs is that having multiple voices is encouraged. In this case, multiple staff members can often contribute content, at least initially. But as your audience grows you may find that you need more frequent updates, so you may choose to outsource to an agency. Like on-site content, if the blog content is highly specialized, it?s probably better to keep it in-house.

Keywords, site structure, & technical SEO: Formatting the navigation and code of a website is one of the most technical aspects of SEO. This is one task not easily managed in-house, unless you?re already employing an SEO specialist or developer knowledgeable in SEO best practices. That said, for many smaller content sites a periodic SEO audit can be effective in keeping your site up to date with best practices without having to retain an SEO on an on-going basis.

Off-site SEO

Overall link building strategy: There are a variety of methods that can be used to drive traffic and links. One of the most effective that is also highly useful for branding and thought leadership is content marketing. You?ll want to spend some time thinking about the different types of content creation and promotion that will be the most efficient and effective for your business, and consider how best to use your resources to execute a content marketing strategy. This could be as simple as periodically publishing well-thought out articles and infographics, or it could be as complex as publishing multiple posts a day and adhering to a strict editorial calendar.

Guest blogging: Guest blogging is a widely-used strategy for both networking and linkbuilding. The process involves outreach, pitching and producing content appropriate for placement on related websites.? Guest blogs are often used as a way to establish thought leadership and brand awareness, so informative posts coming from a CEO or other high-level executive have a bigger impact. Still, it?s possible to have posts ghostwritten if you don?t have the capabilities to produce it in-house.

Content creation and linkbait: This category includes case studies, white papers, list posts, edgy blog posts, infographics, webinars, and all the content pieces that can be used to grab attention and encourage social sharing. Infographics should almost always be outsourced unless you employ a skilled graphic designer, while the other tasks can be managed either in-house or via outsourcing depending on the skill level required and the technical level of the content.

Before you determine whether your focus will be on on-page SEO or more on content creation think about some of the following questions:

  • Do you have a large site that targets a number of different keywords on a variety of different pages? If so your focus should likely be on technical SEO issues and internal linking and information architecture.
  • Do you have a smaller site focusing on a shorter list of keywords? If so you?ll want to find a way to build links into specific pages, likely spending more of your efforts ? particularly your ongoing efforts ? on content marketing and link building.
  • What types of content resources do you have available (who has the ability and bandwidth to write a blog post, an in-depth article, etc.)?
  • What types of outreach resources would you have available (in the event that you need to identify a list of sites to promote a contest/piece of content/etc. to who could carry out contacting those sites, if anyone)?
  • Do you have any graphic resources available internally?
  • Do you have any programming resources available internally (someone who could potentially build a simple widget designed to attract links or make updates to the site that would benefit SEO)?

Obviously in areas that are logical for you to focus on where you have adequate resources you can get those internal resources to work for you. If you?re lacking in the areas that you?ll want to dedicate the most attention to, however, (if your focus should be on technical SEO but you lack technical resources, for instance) those would be areas where you?d want to consider outsourcing.


SEO Photo via Shutterstock


About the Author

Tom Demers is a co-founder and managing partner with Measured SEM, a search engine marketing consulting firm specializing in paid and organic search marketing. Learn more about Tom by following him on Twitter @TomDemers or find him on Google Plus.

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