The Sunlight On The Garden by Louis Macneice. .The sunlight on the garden Hardens and grows cold We cannot cage the minute Within its nets of gold When all is told We cannot beg for pardon. Our . Page
I Live in Upstate NY and have to redo a small garden in the front of my house. It receives direct sunlight from around 11:00 in the morning until 6 or 7 in the evening. The soil is an average type soil (somewhat on the dry side) that has been mixed with peat moss over the years. I would like to plant several small bushes with some ground cover and flowers. Do you have any suggestions on what types of shrubs, ground cover and flowers would grow in the direct sunlight. The area is approximately 6 x 20. Thanks for your advice ...
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In 1929, architect Richard Neutra built the famous "Health House" in the Hollywood Hills of Los Angeles. His brief was to design a home that strengthened the health and well-being of its owner, Dr. Philip Lovell. The Health House provided Dr. Lovell with access to plenty of sunlight and fresh air. Such thinking informed the work of other architects of the period, such as Le Corbusier. In his influential manifesto The Athens Charter, Le Corbusier argued bringing in the sun was the architects new and most urgent duty.. However, many years before Neutra and Le Corbusier - and before the effects of sunlight exposure were investigated scientifically - Florence Nightingale had already identified sunlight as key to promoting health in hospitals. She wrote:. "Direct sunlight, not only daylight, is necessary for speedy recovery, except, perhaps in certain ophthalmic and a small number of other cases.". Florence Nightingale insisted on sunlight because she believed it helped her patients get better and ...
Vegetables That Dont Need Full Sunlight. Just as sleep is vital for people, sun is vital for vegetables. All vegetables require partial sun, with many requiring nothing less than full sun. Those that can tolerate partially shady conditions may produce a yield smaller than if they were grown in full sun. During ...
This is the first study to establish a link between the season of initiating interferon/ribavirin-based therapy for CHC and viral response to treatment. Our results suggest that viral response to treatment was influenced by the hours of sunlight, and by inference, sunlight exposure, a surrogate marker of vitamin D levels.. The most striking finding in our cohort of patients from different latitudes was that a different viral response was observed according to the season of initiating peginterferon/ribavirin-based treatment. In fact, patients starting treatment during the season with the highest daily hours of sunlight, according to the State Meterological Agency,17 showed the highest rate of RVR. We believe our findings are coherent for different reasons. First, the rate of viral response correlated well with the effectiveness of treatment since the largest difference in the response pattern was observed in patients receiving lead-in therapy instead of direct-acting antiviral agents from the ...
The purpose of this study was to examine the effects of summer sun exposure on serum 25-hydroxyvitamin D [25(OH)D], calcium absorption fraction, and urinary calcium excretion. Subjects were 30 healthy men who had just completed a summer season of extended outdoor activity (e.g. landscaping, construc …
Indoor Plants That Will Tolerate Direct Sunlight. Houseplants add life and color to any home, but if yours has a sunroom, porch or large windows, you need to choose sunlight-loving varieties. Ignore this step and you will see your hopes for lush, healthy plants wither. When shopping for a new home, or designing one to ...
Does being in the sun at the beach or playing sports in the sun in the , heat affect insulin ? Ginny who Has to stay out of the sun. ----- Yes, the sun will affect insulin. First there is the heat from the sun which will affect its viability. Then there is the effect of the sunlight on the cresol preservative, not on the insulin crystals. The sunlight tends to turn the cresol a not-lovely shade of brown. I guess Lilly Co. figures no one wants to inject a brown insulin, so they warn us to avoid sunlight on insulin. George ---------------------------------------------------------- for HELP or to subscribe/unsubscribe, contact: [email protected] send a DONATION http://www.Insulin-Pumpers.org/donate.shtml ...
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Objectives Preventable risk factors for prostate cancer are poorly understood; sun exposure is a possible protective factor. The goal of this study was to investigate prostate cancer risk in outdoor workers, a population with high sun exposure. Methods Prostate cancer cases and controls from a large study (conducted between 1994 and 1997) were used for this analysis. A job exposure matrix ( JEM) was used to assign solar ultraviolet radiation (UVR) at work as moderate (2 to ,6 hours outside/day) or high (≥6 hours). Average daily satellite UV-B measures were linked to the latitude/longitude of the residences of each participant. Several other exposure metrics were also examined, including ever/never exposed and standard erythemal dose by years (SED×years). Logistic regression was used to evaluate the association between solar UVR exposure and the odds of prostate cancer. Results A total of 1638 cases and 1697 controls were included. Men of Indian and Asian descent had reduced odds of prostate ...
Outdoor solar lights use the energy provided by sunlight to charge preinstalled batteries. Most have sensors that will turn the light on automatically when the sun begins to go down and off when the sun comes up. Some solar lights are mounted on ground spikes or stakes, and others are simply placed on the ground.
Many outdoor workers are exposed to dangerous levels of ultraviolet radiation, sometimes over many years. If not detected early enough, sun damage can lead to fatal cancers. The problem in Victoria is very serious. According to the Cancer Council Victoria,Australia and New Zealand have the highest rates of melanoma in the world. More than 10,000 people are diagnosed with melanoma in Australia every year. Melanoma of the skin is the fourth most common cancer in both men and women. It accounts for 10 per cent of all cancer diagnoses. One in 19 Australians will be diagnosed with melanoma before age 85, and it is the most common type of cancer in young Australians aged 15 to 44 (20 per cent of all cases). The National Hazard Exposure Worker Surveillance: Exposure to direct sunlight and the provision of sun exposure controls in Australian workplaces report undertaken by Safe Work Australia in 2010 focused on the exposure of Australian workers to direct sunlight and the control measures that were ...
Not only does adequate sunlight exposure result in the production of vitamin D, a hormone-like substance that regulates over 2,000 genes in the human body -- and as a result prevents or ameliorates hundreds of vitamin D deficiency associated health conditions -- but sunlight exposure itself has a unique set of health benefits not reducible to simply vitamin D production alone. One of the more interesting studies performed on sunlight exposure, based on data gathered from over 100 countries and published earlier this year in the journal Anticancer Research, showed that there was "a strong inverse correlations with solar UVB for 15 types of cancer," with weaker, though still significant evidence for the protective role of sunlight in 9 other cancers. Here are some additional benefits of sunlight exposure: ...
Objective: Although bipolar disorder has high heritability, the onset occurs during several decades of life, suggesting that social and environmental factors may have considerable influence on disease onset. This study examined the association between the age of onset and sunlight at the location of onset. Method: Data were obtained from 2414 patients with a diagnosis of bipolar I disorder, according to DSM-IV criteria. Data were collected at 24 sites in 13 countries spanning latitudes 6.3 to 63.4 degrees from the equator, including data from both hemispheres. The age of onset and location of onset were obtained retrospectively, from patient records and/or direct interviews. Solar insolation data, or the amount of electromagnetic energy striking the surface of the earth, were obtained from the NASA Surface Meteorology and Solar Energy (SSE) database for each location of onset. Results: The larger the maximum monthly increase in solar insolation at the location of onset, the younger the age of ...
There is some very active discussion in blogworld about stitching recent solar irradiance records between satellites, which may interest some CA readers. http://inel.wordpress.com/2007/07/11/royal-society-proceedings-a-lockwood-frohlich/ http://tamino.wordpress.com/2007/07/24/pmod-vs-acrim/ http://icecap.us/ http://icecap.us/images/uploads/Lockwood_and_Frolich_Review.pdf http://motls.blogspot.com/2007/07/nir-shaviv-why-is-lockwood-and-frohlich.html
Read "Photocatalytic properties of BiVO4 synthesized by microwave-assisted hydrothermal method under simulated sunlight irradiation, Research on Chemical Intermediates" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
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A novel class of photocatalytic coating capable of degrading bacterial and chemical contaminants in the presence of visible sunlight wavelengths was produced by depositing a stable photocatalytic TiO2 film on the internal lumen of glass bottles via a sol gel method. This coating was prepared in either undoped form or doped with nitrogen and/or copper to produce visible light-active TiO2 films which were annealed at 600 °C and were characterized by Raman, UV-Vis, and X-ray photoelectron spectroscopy. The presence of doped and undoped TiO2 films was found to accelerate the degradation of methylene blue in the presence of natural sunlight, while copper-doped TiO2 films were found to accelerate bacterial inactivation (of E. coli and E. faecalis) in the presence of natural sunlight.
where c is the atmospheric extinction and m is the relative optical airmass. The atmospheric extinction brings the number of lux down to around 100 000.. The total amount of energy received at ground level from the Sun at the zenith depends on the distance to the Sun and thus on the time of year. It is about 3.3% higher than average in January and 3.3% lower in July (see below). If the extraterrestrial solar radiation is 1367 watts per square meter (the value when the Earth-Sun distance is 1 astronomical unit), then the direct sunlight at Earths surface when the Sun is at the zenith is about 1050 W/m2, but the total amount (direct and indirect from the atmosphere) hitting the ground is around 1120 W/m2.[5] In terms of energy, sunlight at Earths surface is around 52 to 55 percent infrared (above 700 nm), 42 to 43 percent visible (400 to 700 nm), and 3 to 5 percent ultraviolet (below 400 nm).[6] At the top of the atmosphere, sunlight is about 30% more intense, having about 8% ultraviolet ...
By Marc Sorenson, Sunlight Institute. In a scientific paper, Dr. MS Razzaque shows that there may be some downsides to vitamin D supplementation, including "cardiovascular events and beyond." He also states that "since hypovitaminosis D status usually reflects reduced sunlight exposure, the obvious primary replacement should be safe sunlight exposure, and not exogenous supplements.". The paper specifically mentions that avoiding sunlight exposure may influence the initiation and progression of different types of tumors [cancer], high blood pressure, type 1 diabetes and multiple sclerosis. It also points out that there may be some deleterious consequences of vitamin D supplementation, although in my opinion, the dosage would need to by quite high.. As I have indicated in many of my posts on the Sunlight Institute site, sun exposure is the most natural way to obtain vitamin D, and it has no toxicity, since it is self-regulated.. What wasnt mentioned was the production of health-promoting ...
News The latest news about sun exposure, Vitamin D, the benefits of sunlight, and general sun health from the Sunlight Institute.
TY - CHAP. T1 - Decontamination of water by solar irradiation. AU - Malato, Sixto. AU - Maldonado, Manuel I.. AU - Fernández, Pilar. AU - Oller, Isabel. AU - Polo, Inmaculada. PY - 2014/1/1. Y1 - 2014/1/1. N2 - Humankind has been changing, contaminating, and polluting their environment since the Paleolithic era. This first type of pollution was air pollution through the use of fire (Spengler and Sexton, 1983). Later, in the Bronze Age and Iron Age, the forging of metals produced significant air and soil pollution as can be seen in glacial core samples in Greenland (Honget al., 1996). As early as the 9th century, Arab and Persian scientists have written about pollution and waste handlings (Gari, 2002). The industrial revolution in the 19th century led to the environmental pollution, as we know it today with its new industries and the enormous consumption of coal and oil, which lead to air pollution and the discharge of chemicals and industrial wastes into waterways (streams and rivers). After ...
Read "Effect of 3D ZnO:Fe morphology on the photocatalytic activity under solar irradiation, Research on Chemical Intermediates" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
The MoO3 coated ZnO photocatalysts were synthesized for the optimum harvesting of the absorbed ultraviolet sunlight photons by initially permeating Mo6+ ions at the surface of pre-synthesized ZnO and finally transformed to MoO3 by thermal treatment in the air. The absorption spectra of the synthesized powders revealed the extension of the absorption edge in the visible region whereas, the photoluminescence spectroscopy established the supporting role of the MoO3 coating in gradually plummeting the excitons recombination. The growth of additional peaks in Raman as well as X-ray photoelectron spectra and the appearance of the corresponding low-intensity reflection substantiated the surface prevalence of MoO3. The absence of the individual particles of MoO3 in FESEM and the verification of coated layer by HRTEM images validated the authenticity of the adopted synthetic route. The electrochemical evaluation of the synthesized powders under illumination revealed the complete elimination of ...
One of the most common causes of a plant struggling in the garden is not enough, or too much, sunlight. It?s important to know how the sunlight changes over the course of the spring and summer. As trees leaf out and the suns angle changes, what was once a full sun area in spring may be part shade by midsummer.. A new tool can help you determine the amount of sunlight that different areas of your yard are receiving. The SunCalc sunlight calculator is a battery-powered tool that records the amount of sunlight over a 12-hour period. The photo-receptive diode registers how much sunlight has accumulated and signals whether the area is in full or part sun, part shade or full shade. Full sun is defined as 6 or more hours of direct sunlight. Part sun is defined as 4 to 6 hours, part shade is 1-1/2 to 4 hours, and full shade is less than 1-1/2 hours. SunCalc works even on cloudy days. If used over a number of months, it can give a good estimation of the sun exposure in various gardens and help you ...
The following is a list of cities by sunshine duration. Sunshine duration is a climatological indicator, measuring duration of sunshine in given period (usually, a day or a year) for a given location on Earth, typically expressed as an averaged value over several years. It is a general indicator of cloudiness of a location, and thus differs from insolation, which measures the total energy delivered by sunlight over a given period. Sunshine duration is usually expressed in hours per year, or in (average) hours per day. The first measure indicates the general sunniness of a location compared with other places, while the latter allows for comparison of sunshine in various seasons in the same location. Another often-used measure is percentage ratio of recorded bright sunshine duration and daylight duration in the observed period. An important use of sunshine duration data is to characterize the climate of sites, especially of health resorts. This also takes into account the psychological effect of ...
Sunlight is an additional source of vitamin D. It is important as dietary sources of vitamin D are few. Ideally we should get 90% of our daily vitamin D requirement from sunlight. UV rays in sunlight convert a type of cholesterol found in the skin to vitamin D. Modern lifestyle has limited our exposure to the sun. There are many variables that affect the ability of the skin to produce vitamin D. As a result it is difficult to recommend how much sunlight is enough. Most authorities recommend between 5 to 30 minutes of sun exposure to your unprotected face, arms, legs or back between 11 am and 3 pm two to three times a week. Early morning or late evening sunlight does not work as UV rays are not able to penetrate the atmosphere. Ability to produce vitamin D also depends on the colour of the skin. Fair skin people need less sunlight than darker ones in whom melanin (skin pigment) restricts entry to UV rays. Exposure to sunlight should be direct as UV rays are restricted by glass (window panes) and ...
Sunlight is recognized as one of the most important environmental factors that influence human health. There is strong evidence in the scientific literature that adequate exposure to sunlight is associated with many physical and mental health benefits, including reduced overall mortality, prevention of many deadly forms of cancer, as well as a number of metabolic, cardiovascular, autoimmune, infectious and neuropsychatric diseases. Vitamin D deficiency, which is mainly due to insufficient exposure to sunlight, is now one of the most common medical conditions, estimated to affect more than a billion people worldwide. Health professionals, patients and the general public should receive more evidence-based information about the many health benefits of sunlight, and how to use it in prevention and treatment of disease.. ...
40% of U.S. population chronically deficient in vitamin D due to lack of sunlight exposure, says Dr. Michael Holick, author of UV Advantage
The Giotto and Vega missions gave planetary scientists their first view of Halleys surface and structure. Like all comets, as Halley nears the Sun, its volatile compounds (those with low boiling points, such as water, carbon monoxide, carbon dioxide and other ices) begin to sublime from the surface of its nucleus.[49] This causes the comet to develop a coma, or atmosphere, up to 100,000 km across.[3] Evaporation of this dirty ice releases dust particles, which travel with the gas away from the nucleus. Gas molecules in the coma absorb solar light and then re-radiate it at different wavelengths, a phenomenon known as fluorescence, whereas dust particles scatter the solar light. Both processes are responsible for making the coma visible.[13] As a fraction of the gas molecules in the coma are ionized by the solar ultraviolet radiation,[13] pressure from the solar wind, a stream of charged particles emitted by the Sun, pulls the comas ions out into a long tail, which may extend more than 100 ...
We have shown that anthropogenic forcings do not polynomially cointegrate with global temperature and solar irradiance. Therefore, data for 1880-2007 do not support the anthropogenic interpretation of global warming during this period. This key result is shown graphically in Fig. 3 where the vertical axis measures the component of global temperature that is unexplained by solar irradiance according to our estimates. In panel a the horizontal axis measures the anomaly in the anthropogenic trend when the latter is derived from forcings of carbon dioxide, methane and nitrous oxide. In panel b the horizontal axis measures this anthropogenic anomaly when apart from these greenhouse gas forcings, it includes tropospheric aerosols and black carbon. Panels a and b both show that there is no relationship between temperature and the anthropogenic anomaly, once the warming effect of solar irradiance is taken into consideration. ...
A combination of sensor calibration error and uncertainty in the solar irradiance can cause very large errors in the computations of the water radiance contribution to the Coastal Zone Color Scanner (CZCS)-measured radiances. This is especially true when the atmospheric correction algorithm is applied in a horizontally inhomogeneous atmosphere. These possible errors can be considerably reduced through spectral measurements of the aerosol optical thickness and upwelled subsurface radiances coincident with a CZCS overpass on a very clear day. For future instruments it is suggested that provision be made for the sensor to view solar irradiance in diffuse reflection. The analysis presented shows that with such a system the error is reduced to a level even below that which would be applicable if the solar irradiance were known precisely.. © 1981 Optical Society of America. Full Article , PDF Article ...
First of all, babies rarely need vitamin D supplements. The babies who do need these supplements need them due to a lack of sufficient sunlight. Factors that put your breastfed baby at risk for vitamin D deficiency (rickets) are: • Baby has very little exposure to sunlight. For example: if you live in a far northern latitude, if you live in an urban area where tall buildings and pollution block sunlight, if baby is always completely covered and kept out of the sun, if baby is always inside during the day, or if you always apply high-SPF sunscreen. • Both mother and baby have darker skin and thus require more sun exposure to generate an adequate amount of vitamin D. Again, this is a "not enough sunlight" issue - the darker your skin pigmentation, the greater the amount of sun exposure needed. There is not much information available on how much more sunlight is needed if you have medium or darker toned skin. See the section below regarding amount of sunlight needed. • Mother is deficient in ...
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The effect of three moisture levels and three shade regimes on the growth of D x P ex Kusi oil palm seedlings was investigated at the Oil Palm Research Institute, Kusi between July 1998 and February 2000 in a factorial experiment laid out in randomized complete block design with four replications. The moisture treatments investigated were W1 (50-60 % field capacity), W2 (65-75 % field capacity) and W3 (80-90 % field capacity). The shade treatments investigated were S1 (0 % shade), S2 (50 % shade) and S3 (75 % shade). Data was collected on leaf number per plant, plant height, butt circumference and leaf area as well as dry weight of plant parts and total dry matter. There were significant effects due to shade and shade x moisture interactions on seedling growth. Seedlings under 50% shade (50% full sunlight) in combination with low moisture supply (50-60% field capacity) were comparable in growth to those under 0% shade (100% full sunlight) with high moisture supply (80-90% field capacity). During ...
It appears that the plant is suffering from a lack of sufficient sunlight. It should be exposed to at least four hours of direct sunlight daily to ensure robust growth.. Read more at straitstimes.com.
Incidental Sun Exposure. This is the kind of sun exposure that you are barely aware of, which accumulates over the years from relatively brief everyday activities. For example, individuals are exposed to the sun when walking dogs, waiting for the bus, or walking to and from the car. Everyday incidental exposure adds up and can seriously damage the skin over time.. Cumulative, incidental sun exposure is linked to squamous cell carcinoma (SCC), the second most common skin cancer. An estimated 700,000 cases are diagnosed each year in the US, resulting in approximately 2,500 deaths.. Incidental sun exposure also contributes to basal cell carcinoma. Almost all basal cell carcinomas occur on parts of the body subject to chronic sun exposure - especially the face, ears, neck, scalp, shoulders, and back. BCCs are rarely fatal, but can be highly disfiguring if allowed to grow.. Protect Yourself. The Skin Cancer Foundation recommends that everyone develop a year-round sun protection regimen to reduce the ...
The reason is that you have sunburned eyes. The UV and UVB in the sunlight not only pose great danger to our skin and eventually cause skin cancer, but also lead to sunburned eyes. To protect the eyes, the lenses of adults will absorb a specific amount of UV radiation and near-UV. But being exposed to sunlight or strong glare for too long will break the natural defense. So your eyes will have burning or gritty sensation. Blurred vision or snow blindness may also happen to you. You will not feel uncomfortable when the sunburn happens to you. Instead, you will have the feeling several hours later. After being burned, your eyes will recover in a week or more on their own. However, if your eyes get burned repeatedly, you are prone to have scar tissue in eyes and cataracts. For the sake of your eyes, wear a pair of sunglasses next time when you are in the sunlight.
Solar power harnesses the energy of the sun to run some of the things that most of us use in our daily lives. Solar is an important form of alternative energy that is gaining customers and the attention of businesses.
New research reveals one in 14 UK adults will not see any daylight on the Summer Solstice, longest day of the year – Sunday, 21 June. This figure rises to more than one in 10 amongst 18-24 year-olds.
New research reveals one in 14 UK adults will not see any daylight on the Summer Solstice, longest day of the year – Sunday, 21 June. This figure rises to more than one in 10 amongst 18-24 year-olds.
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When talking about plants, direct sun or full sun is sun exposure of at least six hours per day. Although most flowering plants need a higher level of sun than many plants that produce only foliage, long periods of sun during the summer can be hard on some plants. However, there are some flowers ...
U.S. DOE Awards $1.7 Million to Explore New Green Energy Creation. A team of four chemists at the University of Rochester have begun work on a new kind of system to derive usable hydrogen fuel from water using only sunlight.. The project has caught the attention of the U.S. Department of Energy, which has just given the team nearly $1.7 million to pursue the design.. Everybody talks about using hydrogen as a super-green fuel, but actually generating that fuel without using some other non-green energy in the process is not easy, says Kara Bren, professor in the Department of Chemistry. People have used sunlight to derive hydrogen from water before, but the trick is making the whole process efficient enough to be useful.. Bren and the rest of the Rochester team Professor of Chemistry Richard Eisenberg, and Associate Professors of Chemistry Todd Krauss, and Patrick Holland will be investigating artificial photosynthesis, which uses sunlight to carry out chemical processes much as plants do. ...
Crankus curtains were always closed because he was afraid of sunlight.. His cranky old wife divorced him because he never took her out in the burning hot sun for picnics.. Once, Squeekus was playing behind the curtains and by accident he pulled the curtains over. Sunlight beamed into the room.. Crankus screamed, "Oh no! Sunlight!". He grabbed Squeekus and as he was running out of the room, he tripped over a chair and Squeekus went flying out of his hand...... ...
Abstract. Recent satellite observations of sun-induced chlorophyll fluorescence (SIF) are thought to provide a large-scale proxy for gross primary production (GPP), thus providing a new way to assess the performance of land surface models (LSMs). In this study, we assessed how well SIF is able to predict GPP in the Fenno-Scandinavian region and what potential limitations for its application exist. We implemented a SIF model into the JSBACH LSM and used active leaf-level chlorophyll fluorescence measurements (Chl F) to evaluate the performance of the SIF module at a coniferous forest at Hyytiälä, Finland. We also compared simulated GPP and SIF at four Finnish micrometeorological flux measurement sites to observed GPP as well as to satellite-observed SIF. Finally, we conducted a regional model simulation for the Fenno-Scandinavian region with JSBACH and compared the results to SIF retrievals from the GOME-2 (Global Ozone Monitoring Experiment-2) space-borne spectrometer and to observation-based ...