天水高级妇科训练模型(四川胸腔（背部）穿刺训练模型) (今日更新中)

Mark Zuckerberg has a clear message for Congress in the wake of the Cambridge Analytica scandal: It's my fault.The Facebook CEO will take the blame for mistakes that led to the Cambridge Analytica scandal and lay out steps taken to prevent it from happening again, according to a copy of Zuckerberg's remarks as prepared for delivery to one of the committees before which he will be testifying. "It's clear now that we didn't do enough to prevent these tools from being used for harm as well. That goes for fake news, foreign interference in elections, and hate speech, as well as developers and data privacy," Zuckerberg said in the prepared remarks, which were released by the House Committee on Energy and Commerce on Monday."We didn't take a broad enough view of our responsibility, and that was a big mistake. It was my mistake, and I'm sorry. I started Facebook, I run it, and I'm responsible for what happens here."Zuckerberg is set to appear before a joint hearing of the Senate Judiciary and Commerce committees on Tuesday afternoon followed by a House Energy and Commerce Committee hearing on Wednesday morning.  1135

MEXICO CITY (AP) — Mexican authorities said a group of about 350 migrants broke the locks on a gate at the Guatemalan border Friday and forced their way into southern Mexico to join a larger group of migrants trying to make their way toward the United States.The National Immigration Institute did not identify the nationalities of the migrants, but they are usually from Central America.A similar confrontation occurred on the same border bridge between Mexico and Guatemala last year.RELATED: Where federal government falls short, San Diego agencies fill in to help migrantsThe institute said the migrants were acting in a "hostile" and "aggressive" way, and accused them of also attacking local police in Metapa, a Mexican village that lies between the border and the nearby city of Tapachula.The group of 350 pushed past police guarding the bridge and joined a larger group of about 2,000 migrants who are walking toward Tapachula in the latest caravan to enter Mexico.Claudia Jaqueline Sandoval, 43, from El Progreso, Honduras, was walking toward Tapachula with her 6-year-old daughter. Another son and a daughter are already in the United States.RELATED: Judge blocks Trump's asylum policy but delays enforcement"I have been HIV positive for 16 years," said Sandoval, but her reason for going north was not just medical treatment. "It has been two years since I heard from my son" in the United States, and money is scarce, she said.There are already several groups of migrants in the southern border state of Chiapas who have expressed frustration at Mexico's policy of slowing or stopping the process of handing out humanitarian and exit visas at the border.A group of several hundred Cuban, African and Central American migrants have been waiting at the immigration offices in Tapachula for documents that would allow them to travel to the U.S. border, where most plan to request asylum.RELATED: Mexico is apprehending more migrants. Is it because of Trump?Some members of that group have scuffled with immigration authorities and broken windows at the offices in recent days, accusing officials of making them wait too long for papers.And another group of an estimated 2,500 Central American and Cuban migrants have been stuck for at least a week further west in the Chiapas town of Mapastepec, also waiting for papers. 2337

Marking 100 days until the PyeongChang Winter Olympics, the Olympic flame has once again arrived on South Korean soil.Thirty years after the 1998 Seoul Summer Olympics, the flame arrived at Incheon airport to a show of singing, dancing and speeches.South Korea's favorite figure skater and former Olympiad, Kim Yuna and Prime Minister Lee Nak-yon stood side by side to ignite the flame to a ceremonial cauldron and start the Olympic torch relay. 453

Medical offices around the country are opening back up for routine health checks and they're facing a huge problem; there's still a shortage of protective gear. Now, many are spending huge amounts of money restructuring the way they operate to keep themselves and their patients safe.On a window ledge at ENT and Allergy Associates in White Plains, New York, sits a number of brown paper bags. Inside, face masks labeled for each physician.“We have paper bags on our window sills with a bunch of masks. In there, we have 3-4-5 masks we’re rotating through. Those have to be kept covered to protect them from splatter or anything because once they get dirty, then they have to be thrown out,” Dr. Daniel Gold said. “We circulate gowns as well.”Gold is an E.N.T., which is the medical and surgical choice for anything having to do with the ears, nose or throat. It's a profession that is very much in your face, so protective gear is of utmost importance.“After wearing them for 5-10 minutes, you get short of breath and you’re like this is really hard,” he said.Doctors like Gold are having a hard time getting more gear. In fact, Dr. Gold often uses shields that are designed for sheet metal work because medical grade equipment is back ordered, or entirely unavailable. A surgical mask which once cost 30 or 40 cents now costs to .50.They've also found that knockoffs are being sold.“Not made of same material, not sealing against the face, and some had seam lines and then when you really looked, you’d realize there were holes through the seam lines that’s not blocking 95%,” Gold said. “You’re better wearing a t-shirt mask.”Dr. Gold is far from alone on this issue. It's a statewide and nationwide problem. Dr.Bonnie Litvack is the president of the Medical Society, State of New York.“That is an absolute mess because we can’t deliver the care if we don’t have the resources and the mask is ground zero for that,” Said Dr. Bonnie Livtack, the president of the Medical Society of the State of New York.When asked about whether they were able to negotiate for price on PPE, Litvack said, “With the various companies they either have it or they don’t, or you pay the prices or you don’t.”Dr. Litvack joined other state medical societies in the country by sending a letter to the Senate. They're asking the government to step in."We urge Congress to prioritize the production, distribution, and availability of PPE and testing, and accelerate efforts to conduct contact tracing,” the letter read. “All of these are essential to the safe reopening of medical practices and the economy and must be prioritized for all health care workers."They're also asking for financial help as their costs to operate, while seeing half the patient volume, are mounting.“These additional precautions and equipment is running us about per patient,” Dr. Gold said. “It’s about a million in extra overhead a month just in these extra masks, and gowns, and gloves and wipes. All these other things, which nobody could have thought to budget in because who would have thought we’d have to consider every patient highly infectious.”It's a new way of operating, as everyone is learning how to function in our new, post-pandemic world. 3229

MEXICO CITY (AP) — Mexico’s medical safety commission has approved the emergency use of the Pfizer-BioNTech vaccine for the coronavirus.Assistant Health Secretary Hugo López-Gatell said Friday that Mexico is the fourth country to do so, behind Britain, Canada, and Bahrain.Mexico is set to receive 250,000 doses of the vaccine, enough for 125,000 people.López-Gatel has said that front-line health workers will get the shots first. Vaccinations are expected to begin as soon as next week.López-Gatel says the approval “is, of course, a reason for hope,” though the initial rounds of shots are not nearly enough for Mexico’s health-care workforce. 654

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