中山大便难拉并出血(中山外痔治疗医院排名) (今日更新中)

LA JOLLA, Calif. (KGTV) — Imagine swimming when suddenly hundreds of fins start gliding through the water around you.Local beachgoers may be familiar with the sight, as shown in recently captured drone video in La Jolla. The video shows a mesmerizing view of the massive grouping of leopard sharks, about 4- to 5-foot long, swimming off the coast.Andrew Nosal, a professor and marine biologist at University of San Diego, recorded the video Monday — he also studied the sharks extensively for his dissertation at Scripps Institution of Oceanography.According to Nosal, the gathering, while perhaps intimidating to some, isn't all that rare.RELATED: Killer whale pod preys on dolphins off Southern California coast"Group formation ... is a common behavior for leopard sharks. In La Jolla, these leopard sharks are mostly (over 95%) mature pregnant females," Nosal said. "They appear to be attracted to this site because of its calm, warm water, which we hypothesize speeds up the rate of embryonic development."Leopard sharks give birth every spring after a 10- to 11-month gestation period.The sharks may also be attracted to food in the area, Nosal added, as they feed on squid, octopus, crabs, and small fish in nearby submarine canyons at night.RELATED: Dad captures son wakeboarding with dolphins off San Diego coastAnd while from above the sight of hundreds of sharks may alarm some, leopard sharks aren't considered threatening to humans as long as their space is respected."If a human grabs their tails, for example, the sharks may defend themselves by swinging around and biting the offender," Nosal said. "So, beachgoers should resist the temptation to touch or harass the sharks, which is a bad idea anyway, but also illegal because these sharks are inside a marine protected area."And if one is caught up in the swimming frenzy, there's no need to panic."...Enjoy the experience," Nosal said. "They will not bite unless grabbed. They are otherwise quite skittish and hard to approach. It is best to float still near the surface and allow the sharks to swim close." 2083

LA JOLLA, Calif. (KGTV) - Scientists at Stemson Therapeutics say they've found a way to create new hair cells that could become a cure for baldness."We're hoping this will be the breakthrough," says Chief Scientific Officer Alexey Terskikh.For a few years, they've been working on a two-part process that turns stem cells into hair follicles. It then implants the follicle cells into the scalp to grow new hair."We have the capability to generate brand new hair follicles," says Stemson CEO Geoff Hamilton.Using iPSC's, stem cells derived from a person's blood or existing cells, Terskikh's team can direct them to become folliculogenic cells, the building blocks of hair.They then put the cells into a microscopic scaffold-like mold made on a 3D printer. The molds are about 1/5 the size of a single strand of hair.RELATED: Here are some options if you start going baldThe scaffolds help keep the cells intact, while also telling the hair which direction to grow. That will help avoid in-grown hair or hair that grows in unnatural ways."Imagine transplanting thousands, or tens of thousands of those into a scalp," says Hamilton.Their technique is different from current hair restoration therapy because it grows new hair cells. Existing methods like Rogaine or Propecia try to revive dead cells or transplant existing cells from one area of the body to another."We're inventing as we go," says Hamilton. "We're making up the path ahead of us as we go."Eventually, they say the cost of the new cells will be similar to the cost of hair transplant surgery now, which can run upwards of ,000.In addition to being a cosmetic solution for people who have gone bald naturally, Hamilton says this could help people who have lost hair due to chemotherapy treatment or from severe burns or injuries.So far, testing has proven successful in mice. Human testing is still years away as the company works towards FDA approval.Stemson's lab is part of the Sanford Burnham Prebys Medical Discovery Institute. 2007

Larry Scott, the commissioner of the Pac-12 Conference, said Thursday that a new coronavirus test that claims to provide fast and accurate results is a “major step” when it comes to allowing a football season.Last month, the Pac-12, along with the Big Ten and several other Division 1 FBS conference, decided to postpone the college football season. Meanwhile, two Division 1 FBS games were played on Thursday.Of the Power 5 conference, the ACC, SEC and Big 12 are all moving forward with a fall football season. The decision not to have a fall football season for the Big Ten and Pac-12 amid the coronavirus pandemic came with some backlash as parents, players and even President Donald Trump have pushed for the Pac-12 and Big Ten to change their decisions.And now they have a reason to change their mind.“This is a major step toward the safe resumption of Pac-12 sport competitions,” said Pac-12 Commissioner Larry Scott. “The availability of a reliable test that can be administered daily, with almost immediate results, addresses one of the key concerns that was expressed by our medical advisory committee, as well as by student-athletes, coaches and others. At the same time, our partnership with Quidel, the industry leader in point-of-care antigen testing, will provide crucial research data that will benefit our members’ communities as well as the entire country.”The Pac-12 said that the Quidel tests are expected to reach Pac-12 athletic departments by the end of the fall. The conference says that having a reliable rapid coronavirus test was a key reason why the conference postponed the fall football season.The company claims to have results within 15 minutes and to be 96.7% accurate.According to The Athletic reporter Nicole Auerbach, Scott said he is hopeful that the Pac-12 could resume and align its football calendar with the Big Ten. The two conferences have long held a symbolic relationship through the Rose Bowl, although in recent years, the Rose Bowl is no longer exclusively held between the champions of the Big Ten and Pac-12. 2066

LAS VEGAS, Nevada — More changes could be coming to the "free drink" system in Las Vegas casinos.There is special technology on table-top machines, such as video poker, that monitors when you earn a comped drink. Now, gamblers may see it on slot machines, too.Ardent Progressive Systems and Games has already installed its technology on about 90 slot machines at The Riverside Resort in Laughlin.It's considered a trial run for a couple months to see how it goes."The hope now is, the trial down in Laughlin will be successful and then we've got several properties that are waiting to see the results of that and possibly implementing it in the near future up here in Las Vegas," said Albert Tabola with Ardent Progressive Systems and Games.The technology is a strip of LED lights that faces you while you play. Red means you're not ready for a drink. Green means you are ready for a drink. Yellow means you're getting close to qualifying for a drink. Orange means you're playing too slowly and falling off track."You will know as you play whether you qualify for a complimentary drink or not, as will the cocktail waitress," Tabola said.Players do not have to play max bet to qualify for a drink. They ust need to consistently play."The qualification levels on there are very, very low so this should not affect anybody that plays for the most part, at all," he said. "Ideally, the only person that will be grumbling about this will be the person that wants to get that free drink before they go into a show by just sitting down at the machine and maybe playing a penny or wherever they can get away with."Casinos in Las Vegas will be keeping an eye on the trial run in Laughlin right now before making a decision as to whether they should implement it on slot machines here in the city. 1811

LAKE MURRAY (CNS) - A 48-year-old man was taken to a hospital with multiple major fractures after hitting a Subaru WXR on the 5000 block of Campanile Drive, authorities said today.A 20-year-old behind the wheel of the car pulled out of an alley in front of the 2011 Kawasaki motorcycle, at 7:45 p.m. Saturday, while trying to drive north, according to Officer Robert Heims, with the San Diego Police Department.The motorcyclist was westbound on Montezuma Road and made a left turn southbound onto Campanile Drive, where the biker hit the car, Heims said.The driver of the Subaru had no injuries. San Diego Police Traffic Division is now investigating. 659

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