Q: When did Nicholas Bourbaki quit writing books about mathematics?
A: When (t)he(y) realized that Serge Lang was only one person!
Q: When did Nicholas Bourbaki quit writing books about mathematics?
A: When (t)he(y) realized that Serge Lang was only one person!
What I’ve found most interesting in many of these debates, including this one, is that though there is occasional discussion of building out additional infrastructure to provide additional capacity, there is generally never discussion of utilizing information theory to improve bandwidth either mathematically or from an engineering perspective. Claude Shannon is rolling in his grave.
Apparently, despite last year’s great “digital switch” in television frequencies from analog to provide additional television capacity and the subsequent auction of the 700MHz spectrum, everyone forgets that engineering additional capacity is often cheaper and easier than just physically building more. Shannon’s original limit is far from a reality, so we know there’s much room for improvement here, particularly because most of the improvement on reaching his limit in the past two decades has come about particularly because of the research in and growth of the mobile communications industry.
Perhaps our leaders could borrow a page from JFK in launching the space race in the 60’s, but instead of focusing on space, they might look at science and mathematics in making our communications infrastructure more robust and guaranteeing free and open internet access to all Americans?
Surprisingly, to me, it ony has 4 students currently enrolled!! Having won a Fields Medal in August 2006, this is a true shock, for who wouldn’t want to learn analysis from such a distinguished professor? Are there so few graduate students at UCLA who need a course in advanced analysis? I would imagine that there would be graduate students in engineering and even physics who might take such a course, but perhaps I’m wrong?
Most of his ratings on RateMyProfessors are actually fairly glowing; the one generally negative review was given for a topology class and generally seems to be an outlier.
On his own website in a section about the class and related announcements we seem to find the answer to the mystery about enrollment. There he says:
I intend this to be a serious course, focused on teaching the material in the course description. As such, students who are taking or auditing the course out of idle curiosity or mathematical “sightseeing”, rather than to learn the basics of measure theory and integration theory, may be disappointed. I would therefore prefer that frivolous enrollments in the class be kept to a minimum.
This is generally sound advice, but would even the most serious mathematical tourists really bother to make an attempt at such an advanced course? Why bother if you’re not going to do the work?!
Fans of the Mathematical Genealogy Project will be interested to notice that Dr. Tao is requiring his Ph.D. advisor’s text Real Analysis: Measure Theory, Integration, and Hilbert Spaces. He’s also recommending Folland‘s often used text as well, though if he really wanted to scare off the lookie-loos he could just say he’ll be using Rudin‘s text.
Constitutional debate continues over whether public schools should include biblical Armageddon alongside global warming in end-of-world curriculum.
In the last two years, at least 10 law schools have made their grading systems more lenient to give their students a better chance in a soft job market.
Is GPA tampering and grade inflation going too far with changes like this?
He really has a great sense of humor, doesn’t he?
Commenting only after reading to page 11, but having skimmed some other parts/sections, it’s a nice and condensed volume with most of the standard material on point set topology. It reads somewhat breezily, is well laid out, and isn’t bogged down with all the technicalities which those who haven’t seen any of this material before might have interest in. It seems better for those with some experience in axiomatic mathematics (I’ve always enjoyed Robert Ash’s A Primer of Abstract Mathematics for much of this material), but in my mind isn’t as clear or as thorough as James Munkres’ Topology, which I find in general to be a much better book, particularly for the self-learning crowd. The early problems and exercises are quite easy.
Given it’s 1964 publication date, most of the notation is fairly standard from a modern perspective and it was probably a bit ahead of it’s time from a pedagogical viewpoint.
But tonight Twitter began to change the landscape of how Hollywood, and in particular the representation segment, does its day-to-day business.
It began with the news that Alyssa Milano’s ABC series ROMANTICALLY CHALLENGED, which premiered on April 19th earlier this year, had been cancelled. Michael Ausiello of the Ausiello Files for Entertainment Weekly broke the story online at 7:44 pm (Pacific) and tweeted out the news. Alyssa Milano saw the news on Twitter about an hour later, and at 8:45 pm, she out her disappointment to the world.
Just found out #romanticallychallenged was cancelled through Twitter! How crazy is that shit?
— Alyssa Milano (@Alyssa_Milano)
Her agent/manager is going to have a fire to put out tomorrow, if it doesn’t burn itself into oblivion tonight! If anything, her agent typically could have or should have been amongst one of the first to know, generally being informed by the studio executive in charge of the project or potentially by the producer of the show who would also have been in that first round to know about the cancellation. And following the news from the network, Alyssa should have been notified immediately.
Typically this type of news is treated like pure commodity within the representation world. If a competing agent, particularly one who wanted a client like Alyssa, to move to their agency, they would dig up the early news, call her at home, break the bad news early and fault the current representative for dropping the ball and not doing their job. Further, the agent would likely put together a group of several new scripts (which the servicing agent either wouldn’t have access to or wouldn’t have sent her) and have them sent over to her for her immediate consideration. Suddenly there’s an unhappy client who is seriously considering taking their business across the street.
The major difference here is that it isn’t a competing agent breaking the bad news, but the broader internet! Despite the brevity of the less than 140 characters Ms. Milano had, it’s quite obvious that she’s both shocked and a bit upset at the news. We cannot imagine that she’s happy with the source of the news; it’s very likely that her representation got an upset call this evening which they’re currently scurrying to verify and then put out the subsequent fire.
Beyond this frayed relationship, there is also the subsequent strain on the relationships between representation and the overseeing studio executive(s), studio/network chief, and potentially further between the Agency and the Network over what is certain to be one of the more expensive television talent deals in the business right now.
We’re sure there will be a few more agents, managers, and attorneys who sign up for Twitter accounts tomorrow and begin monitoring their clients’ brands more closely on the real-time web.
[As a small caveat to all of this, keep in mind that the show was picked up in early August last year and only aired four episodes premiering in April of this year, so from a technical point of view, the show’s cancellation isn’t a major surprise simply given the timing of the pick-up and the premiere, the promotional push behind the show, or the show’s ratings. Nevertheless, this is sure to have an effect on the flow of business.]
Imagine having your back cut open, part of your spine removed, a stabilizing device that resembles a mini oil rig mounted on your back, the outer membrane of your spinal cord sliced open and experimental stem cells injected into it -- all for the advancement of science because it's not expected to benefit you.
Atlanta, Georgia — Imagine having your back cut open, part of your spine removed, a stabilizing device that resembles a mini oil rig mounted on your back, the outer membrane of your spinal cord sliced open and experimental stem cells injected into it — all for the advancement of science because it’s not expected to benefit you.
John Cornick, 51, did just that earlier this month as part of a groundbreaking clinical trial.
Almost a year ago, Cornick was told he had ALS — better known as Lou Gehrig’s disease. The diagnosis left him “fairly devastated,” he says.
He knew the prospects were grim because there is no cure.
But John wasn’t giving up so quickly, nor was his wife, Gina.
“I knew he was a fighter from the beginning and he really wanted to do something,” Gina Cornick says. She found information about a clinical trial on online and immediately signed him up, even though she had no idea where it was being held.
ALS destroys the nerve cells in the brain and spine which control muscle movement. When the brain can no longer tell muscles to move, they eventually die, depriving the patient of the ability to move arms and legs and eventually breathe.
The goal of this phase 1 trial is to determine whether fetal stem cells can safely be injected into the spinal cord. Ultimately, researchers hope to show that these cells may slow or halt the progression of the fatal disease.
But for now, the only goal is establishing safety.
The Cornicks live in North Carolina, just a few hours from Atlanta, Georgia’s Emory University, the site of the trial. It is the first FDA-approved clinical trial to inject fetal stem cells directly into the spinal cord of an adult.
Dr. Jonathan Glass, director of Emory’s ALS center, is overseeing the trial. Cornick and two previous patients in the trial are heroes, says Glass, because at this point, the trial will likely produce only information, not results.
“In reality what do these patients have? Time, families and their life and we’re putting all of these at risk,” says Glass.
Dr. Lucie Bruijn, science director of the ALS Association, says the progress being made in this clinical trial is exciting. “We’ve been able to move it forward … from animal testing now into actual patients.” The treatment had not been tried in humans before.
Glass hopes this trial will lead to a new form of treatment for people with ALS. “We’re testing multiple things: We’re testing the safety of the surgery; we’re testing the cells; we’re testing immunosuppressants[because scientists do not know whether the body will reject the cells].” They are also testing how well Cornick handles this major surgical procedure, says Glass.
“After we’re finished with the first 12 or 18 patients we will know whether this is surgery that patients can tolerate.”
As he was prepped for surgery, Cornick was hopeful but realistic. “Well, of course you’d like to get up and walk … but I know that’s not going to happen.”
The stem cells used in the surgery are shipped overnight from Maryland, where Neuralstem, the company funding the trial, is based. The stem cells’ source is donated tissue from the spinal cord of an 8-week old aborted fetus, which was donated to the company. The company has developed a method that enables growth of millions of stem cells from this single source of human nerve stem cells.
Before the surgery can begin, a technician at Emory has to verify that a majority of stem cells made it to Atlanta alive. At least 70 percent have to be viable. In this case three samples under the microscope showed 85 percent of the cells arrived alive.
Lead researcher Dr. Eva Feldman, a neurologist at the University of Michigan, designed the trial just four years ago. After a lot of animal testing, her team determined that using fetal nerve stems rather than human embryonic or adult stem cells (such as bone marrow stem cells) was most effective, she says.
Stem cells have the ability to turn into different cells in the body. However, human embryonic stem cells, which come from 4- or 5-day-old embryos, also been found to sometimes turn into cancer cells. Fetal stem cells, such as those used in this trial, are a few weeks older and have already taken on a specific identity — in this case nerve cells.
Feldman says the fetal stem cells used in this trial did not become any of the unwanted cell types. “That’s very, very important,” she says.
Animal testing also proved very useful when it came to figuring out how to actually inject the stem cells. Emory University’s neurosurgeon Dr. Nicholas Boulis invented the device that holds the needle that injects the stem cells. The goal is to inject the cells without injuring the spine and causing even more paralysis. He practiced on 100 pigs before attempting the procedure on a human.
Boulis says it’s critical that the injection be done in a very slow and controlled way.
“If you inject quickly, you’re going to create pressure at the head of the needle and that can cause damage,” Boulis says. That pressure can also inflate an area in the spinal cord which could cause the stem cells to seep back out of the cord when the needle is pulled out, he says. “So by pumping [cells] in slowly you have more security that you are not going to have reflux and you’re not going to have damage.”
Dr. Jeffrey Rothstein, who heads the ALS research center at Johns Hopkins University and is not connected to this trial, said work on this method is a big achievement. “This is purely about how to surgically deliver cellular therapy to spinal cord,” he says. “It’s never been done before.”
After the spinal cord was exposed, the injections began. Cornick got five — each one contains about 100,000 stem cells.
The four-and-a-half hour surgery went smoothly, Boulis, says. “There were no surprises.”
A day after surgery, Cornick was lying flat in a hospital bed, chatting and laughing with some friends from North Carolina.
One week after surgery, he says he felt amazingly well and was still hopeful the cells would do some good for him.
Two weeks later Cornick’s stitches were removed and he was able to drive home. But he will be making frequent visits back to Atlanta as Glass and his team continue to monitor him.
Neuralstem’s Chief Scientific Officer Karl Johe says after the trial’s safety board reviews all existing data, including Cornick’s results, a fourth patient can be treated with the stem cells.
“Patients Four, Five and Six will receive twice as many [stem cell] injections,” Johe says. They will get five more injections on the other side of the spinal cord compared with Cornicks’s surgery.
Cornick expects the researchers will follow his progress for a long time. He says he understands the need for people to be willing to participate in experimental research like this.
“For me it just seemed like the right thing to do. I almost felt I had an obligation to do this,” he says. “To help other people and myself.”