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Cliché, pero tenía la imagen en mente y la ocasión se prestó.
Me gusta como se ve en fondo negro, probablemente coloque otras versiones al rato, como de costumbre.
Taken in Firenze, Italy
Please do not use any any of these photos without my permission. If you want to use any of them please write to me. Thank you.
Can face masks help slow the spread of the coronavirus (SARS-CoV-2) that causes COVID-19? Yes. Face masks combined with other preventive measures, such as getting vaccinated, frequent hand-washing and physical distancing, can help slow the spread of the virus. The U.S. Centers for Disease Control and Prevention (CDC) recommends fabric masks for the general public. People who haven’t been fully vaccinated should continue to wear face masks in indoor public places and outdoors where there is a high risk of COVID-19 transmission, such as crowded events or large gatherings. The CDC says that N95 masks should be reserved for health care providers. How do the different types of masks work? Medical masks Also called surgical masks, these are loosefitting disposable masks. They're meant to protect the wearer from contact with droplets and sprays that may contain germs. A medical mask also filters out large particles in the air when the wearer breathes in. To make medical masks more form-fitting, knot the ear loops where they attach to the mask. Then fold and tuck the unneeded material under the edges.
An N95 mask is a type of respirator. It offers more protection than a medical mask does because it filters out both large and small particles when the wearer inhales. Because N95 masks have been in short supply, the CDC has said they should be reserved for health care providers. Health care providers must be trained and pass a fit test before using an N95 mask. Like surgical masks, N95 masks are intended to be disposable. However, researchers are testing ways to disinfect and reuse them. Some N95 masks, and even some cloth masks, have valves that make them easier to breathe through. Unfortunately, these masks don't filter the air the wearer breathes out. For this reason, they've been banned in some places. A cloth mask is intended to trap respiratory droplets that are released when the wearer talks, coughs or sneezes. It also acts as a barrier to protect the wearer from inhaling droplets released by others.
The most effective cloths masks are made of multiple layers of tightly woven fabric like cotton. A mask with layers will stop more droplets from getting through your mask or escaping from it. How to get the most from your mask; The effectiveness of cloth and medical masks can be improved by ensuring that the masks are well fitted to the contours of your face to prevent leakage of air around the masks' edges. Masks should be snug over the nose, mouth and chin, with no gaps. You should feel warm air coming through the front of the mask when you breathe out. You shouldn't feel air coming out under the edges of the mask. Masks that have a bendable nose strip help prevent air from leaking out of the top of the mask. Some people choose to wear a disposable mask under their cloth mask. In that case, the cloth mask should press the edges of the disposable mask against the face. Don't add layers if they make it hard to breathe or obstruct your vision. Proper use, storage and cleaning of masks also affects how well they protect you. Follow these steps for putting on and taking off your mask: Wash or sanitize your hands before and after putting on your mask. Place your mask over your mouth and nose and chin. Tie it behind your head or use ear loops. Make sure it's snug.,Don't touch your mask while wearing it. If you accidentally touch your mask, wash or sanitize your hands. If your mask becomes wet or dirty, switch to a clean one. Put the used mask in a sealable bag until you can get rid of it or wash it. Remove the mask by untying it or lifting off the ear loops without touching the front of the mask or your face.
Wash your hands immediately after removing your mask.
Regularly wash cloth masks in the washing machine or by hand. (They can be washed along with other laundry.)
And don't forget these precautions: Don't put masks on anyone who has trouble breathing or is unconscious or otherwise unable to remove the mask without help. Don't put masks on children under 2 years of age. Don't use face masks as a substitute for physical distancing. What about face shields? The CDC doesn't recommend using face shields instead of masks because it's unclear how much protection shields provide. However, wearing a face mask may not be possible in every situation. If you must use a face shield instead of a mask, choose one that wraps around the sides of your face and extends below your chin.
Do you still need to wear a facemask after you’re fully vaccinated? After you're fully vaccinated, the CDC recommends that it's ok not to wear a mask except where required by a rule or law. However, if you are in an area with a high number of new COVID-19 cases in the last week, the CDC recommends wearing a mask indoors in public and outdoors in crowded areas or when you are in close contact with unvaccinated people. If you are fully vaccinated and have a condition or are taking medications that weaken your immune system, you may need to keep wearing a mask. You're considered fully vaccinated 2 weeks after you get a second dose of an mRNA COVID-19 vaccine or 2 weeks after you get a single dose of the Janssen/Johnson & Johnson COVID-19 vaccine. In the U.S., everyone also needs to wear a mask while on planes, buses, trains and other forms of public transportation. The World Health Organization (WHO) recommends medical masks for health care workers as well as for anyone who has or may have COVID-19 or who is caring for someone who has or may have COVID-19.``
www.mayoclinic.org/diseases-conditions/coronavirus/in-dep...
The Covid-19 pandemic seems to have sorted us into three types based on our attitudes toward masking: Call them nervous maskers, never-maskers and uncertain maskers. The first feel guilty or nervous about unmasking, so they tend to default to wearing masks; the second feel angry and resentful about being told to mask, so they often refuse entirely. And the third group is just trying to do the right thing without a lot of certainty one way or another. Winter is coming, with its continued battles against delta or mu or another variant. We have better protections now (vaccinations, natural antibodies) but also are returning to higher-risk environments (nightclubs, offices, schools). To complicate matters, there are additional factors to consider such as waning immunity from vaccines and the potential of a bad flu season.
Fortunately, there have been a number of important studies on the efficacy of masking over the past 18 months. The good news is that the research suggests most of us can actually de-mask without guilt or worry in many instances — and not just outdoors. It tells us, for example, that plexiglass dividers are in most cases useless or worse. But relaxed refuseniks need a rethink, too — we shouldn’t be ditching masks entirely. On the contrary, the more people adopt a policy of tactical masking, taking situational factors into account, the lower the infection risk and the more freedoms we can enjoy again. As the probability of infection increases, mask wearers lower the risk of catching the virus compared with no masking. For N95 or FFP2 masks, the protection is far greater. Note: Relative reduction in risk-of-infection figures are for an infection probability of 4%.
It’s no wonder we’re either nervous, angry or confused about masks when you consider how masking guidance and conventions have been all over the map. It seems amazing now that the Centers for Disease Control and Prevention, the World Health Organization and various governments had warned against using masks in the early days of the pandemic. When Thomas Nitzsche, mayor of Jena, Germany, made the decision to require masks in public in early April 2020, his city became one of the first to do so. Infections dropped by up to 75% over the next few weeks. In May, the CDC said fully vaccinated people no longer needed to wear masks in most public settings. Two months later, as delta variant cases rose, the CDC revised that guidance. Now seven U.S. states — Hawaii, Illinois, Louisiana, Nevada, New Mexico, Oregon and Washington — require most people to wear masks indoors in public places. Some states, including Texas and Florida, bar local authorities from imposing Covid-19 restrictions, including mask-wearing. In places that view masking as an affront to liberty, university professors can’t even ask students to wear masks during office hours without putting their jobs at risk. In England, there was a general lifting of restrictions in July, though U.K. Health Secretary Sajid Javid said last week that masking may become mandatory again in some indoor settings this winter, depending mainly on whether hospitalizations from Covid spike. While masks are required on public transport, I’d say about half or fewer comply during my journeys. Many offices require workers to mask while walking around, but few Tory lawmakers are wearing them in the House of Commons. Scotland still requires masks to be worn in shops and restaurants while not seated, as well as on public transport. Berlin requires the medical-grade FFP2 masks on public transport. Certain regions of France also have masking requirements in place. But if you care about what the evidence says (and some people don’t), the jury is in: Masks help a lot. Take, for example, the study that shows most U.S. states that had high mask usage in one month avoided high Covid rates in the subsequent month, even after adjusting for masking policy, social-distancing policy and demographic factors. The majority of states with low mask usage ended up with high Covid case rates. Note: Low mask adherence means states that fall below the 25th percentile; high adherence are those states above the 75th percentile. Study analyzed data from April to October 2020.
The largest study yet on the effectiveness of masking, posted online in pre-print earlier this month, was a randomize trial conducted in 600 villages across Bangladesh covering a population of more than 340,000 adults. It offered strong evidence that masks, and surgical masks in particular, reduce virus transmission. Researchers found that a 29 percentage-point increase in mask adoption led to an 11% reduction in symptomatic SARS-CoV-2 prevalence, where surgical masks were distributed; and a 35% reduction in people over 60. Symptom reductions using surgical masks were not statistically significant in younger age groups. While vaccines have largely broken the link between infections and hospitalizations (and death), they haven’t eliminated the need for mask-wearing. Data released last week showed that two doses of the Oxford/AstraZeneca vaccine were 67% effective against delta-variant infections (compared with 80% for two doses of Pfizer/BioNTech’s). Infections can still be nasty; long Covid remains another reason for vigilance. Not only can fully vaccinated people catch and transmit the virus, but it is unvaccinated adults who are more mask-resistant. Since it’s estimated that around half of all transmissions come from asymptomatic persons, masks are still key to preventing infections. But masking shouldn’t be performative, as it often is with those uncertain maskers who just want to show they are being thoughtful. Which masks we wear, and especially how they fit, is important. Mind the Gap . While N95s offer a higher level of protection, a well-fitted surgical mask blocks most particles.
More particles get through mask; Of course, not all masks are created equal, as a recent study published in the journal Nature highlighted. The authors measured the thermal behavior of face masks in real time during inhalation and exhalation to determine the relationship between the fabric structure of the masks and their performance. Their experiment helped shed light on how aerosol-containing bacteria and coronaviruses penetrate three different kinds of masks — reusable face masks, disposable surgical masks and the N95 — and how we can evaluate air filtration performance.Reusable masks have longer, thicker fibers with a larger average pore diameter. Unsurprisingly, they have
higher levels of permeability, with the surgical mask coming second, followed by the F95 (similar to the FFP2 in Europe). Those findings should even help manufacturers create a new generation of masks that offer more breathability while also improving filtration. The CDC doesn’t recommend scarves and other headwear because they tend to be made from loosely woven fabrics. Loosely Denser fabrics such as cotton with a 600 thread count compared with cotton that is woven with 80 threads per inch, are much more effective. Mixed fabrics also tend to have better results. A study on masks with and without gaps shows that leaks can significantly reduce their effectiveness. In addition to materials, layering them can also improve efficacy. New lab evidence on different kinds of masks showed that a three-ply surgical mask blocked 42% of particles from a simulated cough; a three-ply cloth mask was pretty similar. But the protection jumped to 92% when a cloth mask was worn over a surgical mask. Comfort is important to being able to wear a mask for long periods of time. In addition to metal nose-bridge strips that can help a mask stay on better, straps that tie behind the head and mask extenders can help reduce soreness around the ears. Insertable filters can be replaced when masks get wet.
Masks will also help prevent more vaccine-resistant variants from emerging as well as higher rates of flu infections, which can also cause serious illness and even death. Even so, the research strips away some of the mask myths and can help all categories of maskers — nervous, nevers and uncertains — be more tactical and aware. To know whether a mask is a must-have, a good idea or entirely superfluous, check the risk factors the way you might a weather report in the mountains: How densely packed and how well-ventilated is the space you are entering? Will you be moving around or stationary? It’s certainly good to mask up in an elevator or on public transport where people are pretty close together. It’s probably not necessary in an open-planned, well-ventilated office, provided people observe a measure of social distancing. Then be mindful of the infection and vaccination rates where you are. If you are in Broward County, Florida, where 70% of over-18s are vaccinated, you’d be justified in having a more relaxed approach; drive next door to Glades County, where only 31% are vaccinated and infection rates are high, and you’ll want to be more vigilant. Similarly only 16% of over-65s in King County, Texas, are vaccinated compared with 70% next door in Knox County, where the CDC recommends even vaccinated people mask. By moving beyond the “hygiene theater” of practices that don’t offer much benefit while also accepting that there are many different levels of risk tolerance and factors that increase or lower situational risk, we can treat masking a little like checking the weather forecast. Some days require a little more covering up than others.
www.bloomberg.com/graphics/2021-opinion-how-to-wear-face-...
Noi viviamo molto vicini. Quindi il nostro scopo della vita è aiutare gli altri. E se non potete aiutarli, almeno non fate loro del male.
-- Dalai Lama
Le mani che aiutano sono più sante delle labbra che pregano.
-- Robert Green Ingersoll
Someone in distress or someone to flee?
This photo is not for public use. You must contact the photographer for licensing information.
© Daniel Smith Photography / Daniel Smith 2015 www.DanielSmithPhotos.com
Can anyone help? I had this flower in the garden last year I think it came with a meadow flower mix. Anyway, I liked it very much but have been unable to identify it. The closest I have found is Pheasant eye but all the images I have found look different in some way, many more petals for example.
If im lucky they will have seeded and return if not I really would like to order some more but of course I need to know what they are . Any help appreciated.
Identified Ruby Flax
I help aspiring and established photographers get noticed so they can earn an income from photography or increase sales. My blog, Photographer’s Business Notebook is a wealth of information as is my Mark Paulda’s YouTube Channel. I also offer a variety of books, mentor services and online classes at Mark Paulda Photography Mentor
All images are available as Museum Quality Photographic Prints and Commercial Licensing. Feel free to contact me with any and all inquiries.
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Sorry I havn't been able to comment the last few days but got the flu and have been sick since Friday through and still not great today...hopefully this will be my dose for the winter.
A westbound coal train rolls into Livingston, Montana and stops to receive a set of helpers on the rear for the trip over Bozeman Pass.
marooned on an island, a bonus sends for help...
Acrylic on reused carton/cardboard.
For Too8pe's It's Yours, Singapore
#6311, 6309, 6301, and 6310 prepare to depart after helping Y90 up the grade to the Curve. This was the odd consist as it had 4 helpers compared to only 2 main locomotives.
Helper, Utah.
Camera: Olympus Stylus Epic DLX (1997)
Film: Kodak Gold 200
Process: TheDarkroom.com
UtahFilmPhotography.com
entered a random competition to win €10,000. When voting time is finished the 5 photos with the most votes will be put infront of a panel and they decide to win.
I really want to win and buy a better camera, help me try? you can vote once a day
Jasper doesn't get in my craft room too often so he was eager to be my sweet helper recently when he crept in.
Rensink Transport Mercedes-Benz Actros collecting a Linde forklift from Aberdeen.
I love the colour of this livery and it helps that the sun was out!
Me quiero pasar al mundo réflex. Necesito vuestra ayuda.
Después de mucho pensar y muchas vueltas en la cabeza y por internet, creo que tengo una decisión tomada sobre qué comprar para dar este paso… pero me gustaría saber vuestra opinión y recibir vuestros consejos, que os agradezco de antemano.
CUERPO: Nikon D7000
Quiero un cuerpo que me dure y, en principio, no me interesa estar a la última, sino disponer de una cámara que me responda, que me permita crecer y evolucionar con ella y creo que esta es una buena opción. En un principio me había decantado más por la D5000 (y sucesoras), pero aunque, por ejemplo, la pantalla abatible me encanta, también creo que es un elemento frágil y quiero una cámara duradera. La D7000 permite utilizar objetivos sin motor de enfoque, dispone de doble ranura para las tarjetas, mejor manejo (doble rueda, accesos directos, más personalización)…
Y sí, acaban de anunciar la D7100 (COMPARATIVA). Pero creo que las mejoras que propone (más megapíxeles, más puntos de enfoque y ausencia de filtro de paso bajo) a mí no me compensan el aumento de precio. Además, se supone que en poco tiempo el precio de la D7000 bajará algo, si no me despisto y desaparece del mercado rápido.
OBJETIVO: sigma 17-70mm f2.8-4 dc macro os hsm **** O... Tamron 17-50 2.8
Quiero un objetivo moderadamente luminoso y versátil… y no quiero gastar muchísimo dinero. Sé que una focal fija me daría más luminosidad y calidad, pero menos versatilidad, para empezar. El siguiente objetivo que compre será una focal fija, ya os avisaré.
Pero, para empezar, me parece que este objetivo es más luminoso que los objetivos de kit, dispone de un rango de zoom similar al de mi LX5, lo que me viene bien para no sentirme demasiado raro al principio y, además, dispone de una interesante capacidad macro que, aunque no me voy a deshacer, ni mucho menos de mi LX5, me viene bien disponer de ello también con la réflex.
Por preguntar... dudas con el Tamron 17-50 2.8
Leyendo vuestros comentarios, efectivamente, me surge la duda.... prescindir de esos 20mm y del modo macro (que mi LX5 gestiona muy bien) y quedarme con la apertura fija y buenas condiciones con poca luz, bokeh...
Sigo escuchando/leyendo, Gracias.
COMPRA: una locura.
Para empezar, en Salamanca, mi ciudad, no puedo comprar el cuerpo por separado… tengo que recurrir a tiendas en Madrid o a compra por Internet.
Por lo que he leído, ciertos objetivos de Sigma dan fallos y hay que devolverlos, otros funcionan perfectamente.
Os dejo una lista de precios y de lugares… ¿tenéis experiencia con ellos?¿conocéis cómo funcionan?¿alguna otra sugerencia de sitio?
FOTOBOOM: Cuerpo (952,94), Objetivo (449,88), Total (1402,82).
REDCOON: Cuerpo (789), Objetivo (389), Total (1178).
DUKE: Cuerpo (799), Objetivo (369), Total (1168).
AMAZON: Cuerpo (896,95), Objetivo (376,36), Total (1273,31).
PIXMANIA: Cuerpo (799), Objetivo (355), Total (1154).
FOTOCASION: Cuerpo (950), Objetivo (390), Total (1340).
technikdirekt.de: Cuerpo (900), Objetivo (372), Total (1272).
CASANOVAFOTO: Cuerpo (995), Objetivo (444), Total (1439).
- - - MUCHAS GRACIAS - - -
I want to get into the reflex world, and I need your help.
After thinking a lot and looking for a lot at different internet pages, I think I’ve take a decision about what to buy... but I’d like to know your opinion and receive your suggestions, which I thank you in advance.
BODY: Nikon D7000
I want a durable body, not a last technology one… I want a camera that responses and that allows me to evolve and to grow and learn with it, and I think this one is a good option. I began considering the D500 (and its followers), but, loving the tilt screen, I also think it’s a fragile element and I want a camera that lasts. The D7000 allows to use old non-engined lenses, it has a double card slot and better handling (double ring, direct accesses, better personalization)…
And, yes, the D7100 has just been announced (COMPARATIVA). But I think that the improvements (more megapixels, more AF points, no low-pass filter)are not justified by the price. And I hope the price of the D7000 to be reduced and to get it in time, before it disappears from the stores.
LENS: sigma 17-70mm f2.8-4 dc macro os hsm *** OR.... Tamron 17-50 2.8
I want a versatile and fast lens…. And not to spend a lot of money. I know a fixed lens will give more light and quality, but it’s less versatile, to begin with it. The next one will be a fixed one, I’ll ask you about it.
But, to begin in the reflex world, I think this one is faster (in terms of light) than the kit ones and the zoom is similar to the one on my LX5…. which is important not to feel strange at the beginning. It also has some nice macro capabilities that, are useful for me. The LX5 is great on that and I’m not going to abandon it.
Just after asking... some doubts about the Tamron 17-50 2.8
Reading your comments, it may be better to get into that fixed apperture even loosing those 20mm and macro capabilities (that my LX5 resolvs pretty well).
Thanks again.
SHOPS: getting crazy.
It’s impossible to buy the body alone in Salamanca, my city… I have to go to Madrid or buy it from online stores.
As far as I’ve read, there are some problems with some Sigma lenses, and you have to return them and get a new one… and some others just work fine.
I put here a list of prices and stores…. Do yo have any experience on these? Do you know how they work? Any other suggestion?
FOTOBOOM: Body (952,94), Lens (449,88), Total (1402,82).
REDCOON: Body (789), Lens (389), Total (1178).
DUKE: Body (799), Lens (369), Total (1168).
AMAZON: Body (896,95), Lens (376,36), Total (1273,31).
PIXMANIA: Body (799), Lens (355), Total (1154).
FOTOCASION: Body (950), Lens (390), Total (1340).
technikdirekt.de: Body (900), Lens (372), Total (1272).
CASANOVAFOTO: Body (995), Lens (444), Total (1439).
- - - THANK YOU VERY MUCH - - -
HELP ME, I bought rolleiflex 3. 5f, but there is a change on the lens. Does anyone know what this is and to what extent can influence the photos. An immense thank you.
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Many Flickr members may not yet know that the Flickr Community Help Forum has been recently been changed to a read only format www.flickr.com/help/forum/en-us/. In view of this the new Group has been formed to provide help and guidance in using Flickr.
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I've been meaning to make a website for quite some time now, and I've gotten many requests to open up a website to sell all decals and figures I have available, and I need your help! I'm in need a good website name, so ANY and ALL suggestions are welcome! Thanks for all the support along the way :)
I was thinking something along the lines of "XTCDesigns", but I'm not too creative with names. Since "Customs" and "Figures" are often used in sellers' names, I want to try to avoid those words. If you're okay with XTCDesigns, let me know, or suggest another possible name!
All my dreamy photos I have created for last 2 years in one hardcover book: www.indiegogo.com/projects/help-realise-a-art-book-from-a...
In 2013 I can buy only 1 doll... but who of these 3??... for now at first place there is Dia boy... but HELP me... please XD
1° pic Crobidoll Yeon-ho
2° pic: Soom Dia boy
3° pic: Fayriland Mirwen boy
not my photos... credit in pic <3