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sexta-feira, 24 de abril de 2015
17 Breathtakingly Beautiful Places In India You Must Visit Before You Die
quinta-feira, 23 de abril de 2015
Disparidades de salud vinculadas al cáncer
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Las disparidades de salud son las diferencias en la incidencia, la prevalencia, la mortalidad y la carga de una enfermedad y sus efectos adversos en la salud entre grupos específicos de la población. Las disparidades afectan a muchas poblaciones, incluidas las minorías raciales y étnicas, los habitantes de las zonas rurales, mujeres, niños y adolescentes, los ancianos y las personas con discapacidades. Según la Oficina de Salud de las Minorías y Disparidades de Salud, la expectativa de vida y de salud en general de la mayoría de la población estadounidense han mejorado en los últimos años, pero no todos los estadounidenses se han beneficiado por igual. Los CDC y sus socios monitorean las tendencias en la incidencia (diagnósticos) y mortalidad (defunciones) vinculadas al cáncer para identificar qué grupos de la población se ven afectados de manera desproporcionada. Para reducir la desigualdad del cáncer en grupos de mayor riesgo, debemos: mejorar y aumentar la detección temprana del cáncer, promover estilos de vida saludables y ampliar el acceso una mejor atención sanitaria. Tasas de cáncer por raza y grupo étnicoPara todos los tipos de cáncer en los hombres estadounidenses:
Para todos los tipos de cáncer en las mujeres estadounidenses:
*El origen hispano no es mutuamente excluyente de la raza blanca, negra, asiática/nativa de las Islas del Pacífico e indoamericana/nativa de Alaska. Qué están haciendo los CDCInvestigacionesLos investigadores de los CDC han estudiado cuáles son los grupos de personas que no se han beneficiado por igual de las recientes mejoras en la atención de la salud. La División de Prevención y Control del Cáncer de los CDC patrocinó una edición complementaria de la revista American Journal of Public Health sobre las principales causas de muerte en los indoamericanos y nativos de Alaska. Los autores son expertos de muchos campos de especialización diferentes.AMIGAS(http://www.cdc.gov/spanish/cancer/gynecologic/what_cdc_is_doing/amigas.htm)El acrónimo AMIGAS significa ‘Ayudando a las Mujeres con Información, Guía y Amor para su Salud’. AMIGAS es un programa de intervención comunitario educativo y bilingüe, que fue diseñado con el fin de ayudar tanto a las promotoras (las trabajadoras de salud comunitaria) como a otros educadores de salud no profesionales a aumentar las pruebas de detección del cáncer de cuello uterino entre las hispanas que rara vez o nunca se habían hecho una prueba de Papanicoláu. Campaña de los medios de comunicación dirigida a las mujeres afroamericanas(http://www.cdc.gov/spanish/cancer/breast/what_cdc_is_doing/aamm.htm)La campaña utiliza la radio y la prensa escrita para lograr una mayor concientización de las mujeres sobre la importancia de realizarse las mamografías para detectar el cáncer de mama en las etapas iniciales. La campaña también busca aumentar el uso de los servicios de detección del Programa Nacional de Detección Temprana del Cáncer de Mama y de Cuello Uterino en las mujeres afroamericanas de 40 a 64 años de edad. El programa piloto de la campaña se está llevando a cabo en Savannah y Macon, Georgia. Actividades de concientización
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Artificial photosynthesis breakthrough turns CO2 emissions into plastics and biofuel
| Researchers have developed an artificial photosynthesis technology that could be a win/win for the environment (Photo: Shutterstock) Scientists at the Lawrence Berkeley National Laboratory and the University of California, Berkeley have created a hybrid system of bacteria and semiconducting nanowires that mimics photosynthesis. According to the researchers, their versatile, high-yield system can take water, sunlight and carbon dioxide and turn them into the building blocks of biodegradable plastics, pharmaceutical drugs and even biofuel. Although renewable energy is making up a growing portion of the world’s energy production, scientists have suggested that the current trends of CO2 buildup in our atmosphere are still likely to lead to serious consequences, and do so sooner than we had anticipated. One way to keep harmful emissions under control could be to trap the CO2 coming out of smokestacks using materials like polymers or sponges. Some scientists are even going one step further, working on technology that can convert carbon dioxide into useful byproducts like calcium carbonate or biofuels such as methanol and isobutanol. However, these systems are still either very low-yield or in an early experimental phase. Taking inspiration from Mother Nature, scientists have now devised a system that uses sunlight and water to convert carbon dioxide into a wide range of useful chemicals. Artificial photosynthesis is not a new concept – it’s been used to split water into hydrogen and oxygen and synthesize formic acid – but this new approach could be a game changer because of its versatility and the high yields it produces. "Our system has the potential to fundamentally change the chemical and oil industry in that we can produce chemicals and fuels in a totally renewable way, rather than extracting them from deep below the ground," says Peidong Yang, who led the study along with Christopher and Michelle Chang. Their invention uses two different types of bacteria interspersed within arrays of silicon and titanium nanowires. The silicon nanowires act like a miniature solar cell, capturing incoming light and releasing electrons. These electrons are then absorbed by Sporomusa ovata, an anaerobic bacterium that combines them with water and turns carbon dioxide into acetate, a versatile chemical precursor. Meanwhile, the titanium portion of the structure takes the positive charge left in place of the electron and uses it to extract oxygen from water. The oxygen is used by genetically engineered E. Coli bacteria to synthesize the desired chemicals. The nanowire array also acts as a layer of protection for the bacteria, burying them in something akin to tall grass so that these usually-oxygen sensitive organisms can survive in adverse environmental conditions like flue gases. As a proof of principle, the scientists showed that their system can reduce CO2 to chemicals including fuels, polymers and pharmaceutical precursors. The yields were up to 26 percent for butanol, 25 percent for amorphadiene, a precursor to the antimalarial drug artemisinin, and 52 percent for PHB, a renewable and biodegradable plastic, although these figures could rise even further with future optimizations. Solar energy conversion efficiency was at 0.38 percent after 200 hours under simulated sunlight, which the researchers say is about the same as an actual leaf. But the team is already working to improve on this. "We are currently working on our second generation system which has a solar-to-chemical conversion efficiency of three-percent," says Yang. "Once we can reach a conversion efficiency of 10 percent in a cost effective manner, the technology should be commercially viable." The team's research appears on the latest issue of the journal Nano Letters. Source: LBNL
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terça-feira, 21 de abril de 2015
Sodium: How to tame your salt habit
| Find out how much sodium you really need, what high-sodium foods to avoid, and ways to prepare and serve foods without adding sodium. By Mayo Clinic Staff If you're like many people, you're getting far more sodium than is recommended, and that could lead to serious health problems. You probably aren't even aware of just how much sodium is in your diet. Consider that a single teaspoon of table salt, which is a combination of sodium and chloride, has 2,325 milligrams (mg) of sodium. And it's not just table salt you have to worry about. Many processed and prepared foods contain sodium. See how sodium sneaks into your diet and ways you can shake the habit. Sodium: Essential in small amountsYour body needs some sodium to function properly because it:
Your kidneys naturally balance the amount of sodium stored in your body for optimal health. When your body sodium is low, your kidneys essentially hold on to the sodium. When body sodium is high, your kidneys excrete the excess in urine. But if for some reason your kidneys can't eliminate enough sodium, the sodium starts to build up in your blood. Because sodium attracts and holds water, your blood volume increases, which makes your heart work harder and increases pressure in your arteries. Such diseases as congestive heart failure, cirrhosis and chronic kidney disease can make it hard for your kidneys to keep sodium levels balanced. Some people's bodies are more sensitive to the effects of sodium than are others. If you're sodium sensitive, you retain sodium more easily, leading to fluid retention and increased blood pressure. If this becomes chronic, it can lead to heart disease, stroke, kidney disease and congestive heart failure. Sodium: How much do you need?The Dietary Guidelines recommend limiting sodium to less than 2,300 mg a day — or 1,500 mg if you're age 51 or older, or if you are black, or if you have high blood pressure, diabetes or chronic kidney disease. Keep in mind that these are upper limits, and less is usually best, especially if you're sensitive to the effects of sodium. If you aren't sure how much sodium your diet should include, talk to your doctor or dietitian. Sodium: What are the major dietary sources?The average people in the US gets about 3,400 mg of sodium a day — much more than recommended. Here are the main sources of sodium in a typical diet:
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Bizarre Google Streetview findings
Google streetview is wellknown, it’s an easy tool to explore unknown area’s etc.. But there are also some weird and accidental captures by Google’s Streetview car. Check out some bizarre Google Streetview findings..Check out Part 2 of these Bizarre Google Streetview Findings.. Also view Google Streetview Animals via 9-eyes.com
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segunda-feira, 20 de abril de 2015
Intense Anger Can Increase MI Rates, Study Finds
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