MedWorm provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest medical blog items that have been tagged with 'composite'. Sat, 03 Sep 2011 02:54:13 +0100 http://www.medworm.com/index.php?rid=5096207&cid=t_198075_87_f&fid=39187&url=http%3A%2F%2Fgetbetterhealth.com%2Fliquid-material-may-someday-be-used-to-restore-damaged-soft-tissue%2F2011.08.04 Yesterday, I came across this press release from Johns Hopkins regarding a new composite material which may someday be used to restore damaged soft tissue.  (photo credit) The liquid material is a composite of biological and synthetic molecules which is injected under the skin.  Transdermal light is then used to “set” the material into a more solid structure. The results of the early experiments in rats and humans has been reported in the July 27 issue of Science Translational Medicine (full reference below). It is hoped that the new liquid material is a biosynthetic soft tissue replacement composed of poly(ethylene glycol) (PEG) and hyaluronic acid (HA). From the press release (more…) *This blog post was originally published at Suture for a Living* (Source: B... Better Health blogs http://www.medworm.com/rss/comments.php?id=5096207 Thu, 04 Aug 2011 12:00:00 +0100 5096207 http://www.medworm.com/index.php?rid=4664348&cid=t_198075_122_f&fid=37835&url=http%3A%2F%2Fwww.iqscorner.com%2F2011%2F03%2Fwhy-iq-composite-scores-often-are.html This past week Dr. Joel Schneider and I released a paper called " 'Just say no' to averaging IQ subtest scores." The report generated considerable discussion on a number of professional listservs.One small portion of the paper explained why composite/cluster scores from IQ tests often are higher (or lower) than the arithmetic mean of the tests that comprise the composite. This observation often baffles test users. I would urge those who have ponder this question to read that section of the report. And THEN, be prepared to be blown away by an instructional video Joel posted at his blog where he leads you through a visual-graphic explanation of the phenomena. Don't be scared by the geometry or some of the terms. Just sit back and relax and now recognize, even if all the technical stuff is no... Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) blogs http://www.medworm.com/rss/comments.php?id=4664348 Thu, 31 Mar 2011 14:35:00 +0100 4664348 http://www.medworm.com/index.php?rid=4653458&cid=t_198075_122_f&fid=37835&url=http%3A%2F%2Fwww.iqscorner.com%2F2011%2F03%2Fcognitive-ability-domain-cohesion-why.html Some excellent discussion has been occurring on the NASP and CHC listservs in response to the "Just say no to averaging IQ subtest scores" blog post and report.An issue/question that has surfaced (not for the first time) is why markedly discrepant subtest scores that form a composite can still be considered valid indicators of the construct domain. Often clinicians believe that if there is a significant and large discrepancy between tests within a composite, the total score should be considered invalid.The issue is complex and was touched on briefly in our report and in the NASP and CHC threads by Joel Schneider. Here I mention just ONE concept for consideration.Below is a 2-D MDS analysis of the WJ III Cog/Ach tests for subjects aged 6-18 in the norm sample. MDS also finds structure as d... Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) blogs http://www.medworm.com/rss/comments.php?id=4653458 Mon, 28 Mar 2011 22:43:00 +0100 4653458 http://www.medworm.com/index.php?rid=4566138&cid=t_198075_109_f&fid=34750&url=http%3A%2F%2Fpsychcentral.com%2Fblog%2Farchives%2F2011%2F03%2F09%2Fwake-up-when-your-therapist-is-sleeping%2F Although not all that common, psychotherapists sometimes fall asleep in session. Probably more common in traditional psychoanalysis (where the psychoanalyst is sitting behind and out of view of the patient), it far harder to do in more modern, time-limited psychotherapies where each session is more of an active, working period between therapist and client. What is one to do when one is confronted with a sleeping therapist? Stephen Metcalf, writing in New York magazine, set to find out by going back and talking to his prior four therapists, all of whom had fallen asleep on him. Was it him or them? Of course, psychoanalysts — who are specially trained to practice a very specific and older form of psychotherapy — defend their sleeping behavior as the patient’s fault: “In ... World of Psychology blogs http://www.medworm.com/rss/comments.php?id=4566138 Wed, 09 Mar 2011 17:15:32 +0100 4566138 http://www.medworm.com/index.php?rid=3490747&cid=t_198075_125_f&fid=34820&url=http%3A%2F%2Fwww.dentalblogs.com%2Farchives%2Fadministrator%2Fno-more-dental-drill-with-icon-caries-infiltrant%2F Minimally invasive is in. That makes DMG America one cool cat. Instead of treating a decaying tooth with remineralization or a filling, dentists can now rebuild a decaying tooth with Icon caries infiltrant by DMG America. No drill. No filling. No problem. Icon is a microscopic, invasive material that literally fills and reinforces tooth enamel. The product can be used for smooth surfaces and proximal caries that extends to the first third of dentin, D1. In just 15 minutes, you can restore the integrity of a tooth with progressing caries. Simply prepare the area with a rubber dam, then treat the tooth with a gel containing 15% HCL. The pores will open in the affected area, and you will then rinse, apply ethanol to dry, and then air dry the tooth. Apply Icon to the lesion and light cure. A s... dental blog for dentists about dentistry blogs http://www.medworm.com/rss/comments.php?id=3490747 Wed, 21 Apr 2010 14:05:41 +0100 3490747 http://www.medworm.com/index.php?rid=3316261&cid=t_198075_154_f&fid=35773&url=http%3A%2F%2Fblog.openmedicine.ca%2Fnode%2F252 Analyzing composite outcomes in cardiovascular studies: Traditional Cox proportional hazards versus quality-of-life–adjusted survival approaches February 22, 2010. Vol. 4(1), pp.40-48. Dean T Eurich, Sumit R Majumdar, Finlay A McAlister, Ross T Tsuyuki, Yutaka Yasui, Jeffrey A Johnson Abstract HTML PDF Background: Composite outcomes that weight each component equally are commonly used to study treatment effects. We hypothesized that each component of a composite outcome would differentially affect patients’ overall health-related quality of life (HRQL). Methods: We tested our hypothesis using data from 2 published clinical studies of treatment for heart failure, one comparing metformin and sulfonylurea and the other comparing digoxin and placebo. We applied the quality-adjusted surviva... Open Medicine Blog - blogs http://www.medworm.com/rss/comments.php?id=3316261 Sun, 28 Feb 2010 07:18:41 +0100 3316261 http://www.medworm.com/index.php?rid=2670961&cid=t_198075_125_f&fid=34820&url=http%3A%2F%2Fwww.dentalblogs.com%2Farchives%2Fcranham%2Fdr-cranham-on-amalgams%2F I have never believed that amalgam creates a major health issue, but that’s not to say some patients may be more sensitive than others, and for them, amalgam can be a problem. My practice has been amalgam free for 10 years because now we simply have better materials. There are benefits in terms of sealing and strenghtening the tooth with composite, as well as the estheitc issue. None of my patients want black or silver fillings, given the alternative. I will say, amalgam is the most forgiving material for fillings. If it’s impossible to isolate a tooth, amalgam is better than composite. In fact, a poor amalgam is better than a poor composite. When composite fillings fail, they fail big. Dentists have more room for error with silver filling materials. So there is still a time... dental blog for dentists about dentistry blogs http://www.medworm.com/rss/comments.php?id=2670961 Tue, 04 Aug 2009 16:00:17 +0100 2670961 http://www.medworm.com/index.php?rid=2387197&cid=t_198075_137_f&fid=35426&url=http%3A%2F%2Ffeedproxy.google.com%2F%7Er%2FTheAlzheimersReadingRoom%2F%7E3%2FzYhi9euNhyA%2Fot-nasdaq-composite-15-year-perspective.html My Quantcast statistics indicate that a large fraction of subscribers to the Alzheimer's Reading Room are interested in investing. Quantcast also tells me the audience is highly educated and "more affluent". It is likely that many of the subscribers to the Alzheimer's Reading Room are investing for retirement. You might not know this, there are about 88 million individual investors in the United States.If you read my profile you know before I assumed my new life as a caregiver, I spent a couple of decades on Wall Street. In addition to the Alzheimer's Reading Room, I have two investor blogs.With this in mind, I decided to include one of my recent posts from All American Investor.I am putting up this Nasdaq Composite chart for one simple reason -- there are some real opportunities in the st... Alzheimer's Reading Room, The blogs http://www.medworm.com/rss/comments.php?id=2387197 Mon, 04 May 2009 17:03:32 +0100 2387197 http://www.medworm.com/index.php?rid=2182398&cid=t_198075_125_f&fid=34820&url=http%3A%2F%2Fwww.dentalblogs.com%2Farchives%2Fadministrator%2Fstronger-bonds-between-composite-fillings-and-teeth%2F Professor Tjaderhane of Finland has found that MMPs (matrix metalloproteinases), which naturally occur in teeth, break down the extracellular matrix of composite fillings. Collagen, found in dentin, is one part of the matrix that is affected. Dentin produces MMP, so teeth are actually responsible for the bond deterioration. As much as 50% deterioration in a composite filling bond can occur in one year. Clinical trials have shown a way to reduce, and possibly eliminate, this problem. By applying chlorhexidine, which your office probably has on hand, you can inhibit MMP enzyme activity. Chlorhexidine application can also slow tooth decay. Tests have been performed on animals to this point, so further research is necessary. However, this simple solution could be immediately implemented in ... dental blog for dentists about dentistry blogs http://www.medworm.com/rss/comments.php?id=2182398 Fri, 13 Feb 2009 16:52:53 +0100 2182398 http://www.medworm.com/index.php?rid=1645845&cid=t_198075_125_f&fid=34820&url=http%3A%2F%2Fwww.dentalblogs.com%2Farchives%2Fadministrator%2Framon-spectroscopy-could-end-need-for-dental-fillings%2F According to MedicalNewsToday.com, scientists in London are using Ramon spectroscopy to detect tooth demineralizaion so early that special mouthwash or fluoride varnish may prevent cavity development. Imagine, no need to worry about the amalgam controversy; no need for patients to stress out over the dental drill; and best of all, this could mean an end to a raging disease across the globe – dental caries. Don’t get too excited yet. Research to this point has not involved human teeth, and the cost of producing a Ramon spectroscopy machine is high. How it works: Ramon spectroscopy for dentistry is being developed by scientists at King’s College London. Currently, the technology is used to identify molecular fingerprints that allow scientists to distinguish different chemicals.... dental blog for dentists about dentistry blogs http://www.medworm.com/rss/comments.php?id=1645845 Tue, 22 Jul 2008 14:00:08 +0100 1645845 http://www.medworm.com/index.php?rid=1634801&cid=t_198075_125_f&fid=34820&url=http%3A%2F%2Fwww.dentalblogs.com%2Farchives%2Flarry-emmott%2Fsopro-717-shade-matching-tool%2F The Sopro 171 by Acteon Imaging is a shade matching camera that features a very fine distal part and shapely design for easy use. With this tool, 3 presets for depth field, a sophisticated optical unit, bright LEDs, and quality electronics result in clear, detailed images. The Sopro 171 docking station features both video and S-vido output and a USB2 digital video output. With a gentle press of a button, you can freeze a captured image on your monitor. See a video about Sopro 171 at Larry Emmott’s website, www.emmottontechnology.com. Learn more about Sopro 171 and download the product brochure here: http://www.acteongroup.com/sitesatpr/LANG_U/FICSOP/Pages/sopro717_en.asp. Precise shade matching has never been easier. (Source: dental blog for dentists about dentistry) dental blog for dentists about dentistry blogs http://www.medworm.com/rss/comments.php?id=1634801 Thu, 17 Jul 2008 14:09:21 +0100 1634801 http://www.medworm.com/index.php?rid=1593734&cid=t_198075_125_f&fid=34820&url=http%3A%2F%2Fwww.dentalblogs.com%2Farchives%2Fadministrator%2Fself-repairing-teeth-could-become-reality%2F Wouldn’t it be nice if a tooth just regenerated dentin after a cavity were removed? This may sound like something off of Star Trek, but the truth is, dental regeneration could be closer than you think. Because tooth decay is a huge public health issue, being the most often occurring infectious disease across the globe, dentin regeneration is sensational news. Read the clinical info here: http://www.medicalnewstoday.com/articles/114054.php. (Source: dental blog for dentists about dentistry) dental blog for dentists about dentistry blogs http://www.medworm.com/rss/comments.php?id=1593734 Mon, 07 Jul 2008 13:13:16 +0100 1593734