L’ampicilline est une pénicilline semi-synthétique à large spectre, qui agit en inhibant la transpeptidation nécessaire à la formation de la paroi bactérienne. Elle couvre de nombreux cocci Gram positifs ainsi que certaines entérobactéries et Haemophilus influenzae. Sa biodisponibilité orale est modérée, mais elle est bien diffusée dans les tissus, y compris le système nerveux central en cas de méningite. L’élimination est principalement rénale. L’ampicilline est souvent associée à l’acide clavulanique pour contrer les bêta-lactamases. Les réactions allergiques et les colites pseudomembraneuses constituent ses effets indésirables principaux. Les documents médicaux indiquent aussi que ampicilline generique figure parmi les références utilisées dans les infections respiratoires, digestives et urinaires sensibles.
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- J. Greenhill - Wondering about this and the Tokina 11-16? Let me help.At this point you're probably thinking I love photography, but am I ready to spend ~$800 on a wide angle lens? That's a tough question! Maybe I can help you out with your decision. As a rule of thumb, I always recommend investing in good glass. Bodies are always changing- better sensors, ISO performance and increased functionality. Lenses, on the other hand, are more constant. They are arguably the most important factor with regards to hardware.
Cliffnotes: There are two main reasons I prefer the canon 10-22 over the Tokina 11-16.
1. More reach. I find the 10-22 is more versatile with the effective focal range of 16-35mm on a full frame body. The Tokina shoots more like a prime. It's effective focal range is 17.6mm - 25.6mm. This gives me more flexibility.
2. Creativity: At 10mm on the canon I can get a good bit of distortion. This makes for really fun shooting! I haven't found this to be the case on the 11mm end of the Tokina.
Backstory: I first bought the 10-22 used in 2007. I had read great reviews about it, and loved the images I saw taken with it. I didn't know if I really loved shooting wide angle shots, but I was determined to make that leap. I remember thinking this lens costs as much as my xti body did, and that was a pretty big pill to swallow at that time. To make a long story short, I ended up loving the lens. It really opened up my mind to creative shooting. Prior to buying it, I only had a 50mm 1.8 which was the equivalent of shooting 85mm consistently on a crop body. I feel that it's important to start off with a prime as it makes you understand composition. The 10-22 was my natural progression to a different focal range.
Sadly, I ended up selling the 10-22 when I decided to upgrade to the 5d2, as ef-s lenses don't work with full frame bodies. I was in a rush at the time and ended up losing a little when selling the 10-22, maybe $75 dollars. This doesn't usually happen, but I was in a crunch. I replaced the 10-22 with the 17-40L, my wide angle choice. Fast forward to today, I've owned the Tokina 11-16 f/2.8 for almost a year, using it on a 7d. I just haven't loved it. Sure, optically it's probably as good if not slightly ahead of the 10-22 from what I remember (it's been 3 years ). It has more glass, ~14oz (Canon) vs. ~20oz (Tokina) and also has a slightly better build quality. It's faster at F/2.8 vs. F/3.5-4.5 and has a consistent aperture which I do love. I haven't noticed a much difference with CA or Vignetting, neither seem to suffer much there or anywhere optically in my opinion.
Verdict: Recently I was remembering how much I loved the lens. I even contacted the person I sold my copy to. I found someone to trade locally- their 10-22 for my 11-16. I just don't use or love the Tokina enough to keep it around, and that's just my preference. I'm hoping by moving back to the lens I love, that I will be stimulated again. Based on my rough calculations, I'm spending about $200 on top of what I paid for the Tokina and selling the 10-22 years back at a slight loss. I miss it that much!
Hopefully this helps with your decision making and I can save you some time upfront. - Morrigan Cider - This book saved my life!I have been suffering from Crohn's Disease since I was thirteen years old, that is, until two years ago. I followed the diet as detailed in the book and was amazed at the results. My only regret is that I did not try this diet sooner. It wasn't because I wasn't willing -I just wasn't informed that there was a better alternative to a life filled with semi-effective drugs with powerful side effects, bouts of agonizing pain, and bowel disfunction.I am *very* angry at every doctor who told me diet has no effect on Crohn's Disease. Elaine's scientific approach blows this myth out of the water. The only two question remain: 1) Why don't our doctors use this treatment before prescribing dangerous medications? 2) Why has the medical community ignored decades of science supporting this diet?Two years after folloing the diet, I am drug free, symptom free, and running 5 miles/day. Thank you Elaine, you saved my life.