梅州尿道炎什么原因(梅州怀孕二个月做流产) (今日更新中)

SAN DIEGO (KGTV) — As California deals with its worst energy crisis in two decades and the threat of more rolling blackouts, a lot of people are wondering who -- or what -- is to blame.Energy experts say last weekend’s blackouts are raising new questions about the way the state manages its electrical grid. California is the only state in the west that uses an independent system operator, an entity known as Cal ISO.“This is really just a demonstration that the reliability of the grid is less reliable with [Cal ISO] than when we just had regular utilities,” said San Diego-based energy consultant Bill Powers.Cal ISO manages 80 percent of California’s power grid. It manages the flow of electricity for investor-owned utilities like an air traffic controller manages the flow of privately owned airplanes down a runway. City-owned utilities like the Los Angeles Department of Water and Power are not part of the Cal ISO system.Cal ISO, previously known as CAISO, was formed in 1998 after regulatory changes during the Clinton administration that were designed to make the energy market more competitive.Powers said the fundamental idea was simple: “instead of having these monopoly utilities controlling everything, let's open up the transmission systems.”But it didn’t take long for flaws in the system to emerge. In 2001, market manipulation from companies like Enron prompted dozens of rolling blackouts.In other states like Arizona, utilities are responsible for the electrical transmission within their service territory. Those utilities are able to rapidly respond if conditions prompt the need for additional power generation, Powers said.“[It’s] one-stop shopping. Here it’s two-stop shopping,” he said. “You've got another layer of fat in there. And if that layer of fat is playing the game a different way, simply making sure everyone is covered, then you have the potential to have a breakdown. And we're now experiencing a breakdown.”The most recent major breakdown was in 2011, when 1.4 million San Diegans suddenly found themselves in the dark.A federal investigation into the Great Blackout of 2011 cited “inadequate real-time situational awareness” -- basically bad grid management -- and faulted several entities, including Cal ISO.Edward Lopez, the executive director of the Utility Consumers’ Action Network, said last weekend’s rolling blackouts were another example of bad grid management.“This is an indication that, again, this statewide organization needs to be better prepared and ready to jump into action quicker,” he said.Cal ISO blames another state agency for the recent rolling blackouts, the California Public Utilities Commission, along with California’s evolving energy portfolio.About one-third of the energy California now generates in-state is from renewable sources like solar and wind. When clouds roll in and the winds subside, that can be a problem.“Lack of resources, the heat, those go into account,” Lopez said, “but on the other hand, this was not unpredictable.”Even though more Californians have been staying home due to the pandemic, last weekend’s conditions were not particularly remarkable, he said. With the impact of climate change, above normal temperatures are expected to become more common.One solution to California’s renewable energy problem, he said, is to invest in more energy storage.Cal ISO’s own data shows energy demand last weekend was lower than in previous peak years and there were reserves available, Powers said.“Why do we keep reserves if we’re not willing to use those reserves when conditions get tight?” Powers said.City-owned utilities like LADWP that are independent from Cal ISO did not experience rolling blackouts, one reason Powers thinks there’s a problem with California’s energy air traffic controller.“Maybe we need better rules. Maybe we need a different system,” he said. 3871

SAN DIEGO (KGTV) — As temperatures warm up, there is some early research suggesting air conditioning units could increase the risk of spreading COVID-19.One team of researchers swabbed several kinds of air conditioning units and found traces of the virus on one out of every four samples.One of the authors, University of Oregon professor Dr. Kevin Van Den Wymelenberg, said the research “does give us some pause.”Air conditioning units bring in little outside air, particularly when temperatures are very hot, posing a risk that viral particles could be recirculated into rooms, Van Den Wymelenberg said.However, just because the study found traces of the virus in A/C units, it doesn’t prove people can actually get sick from the contaminated air because it’s not yet clear how many viral particles it takes to infect someone, he noted.“Nobody knows what that minimum threshold is so we need to take as many precautions as possible,” he said.Dr. Edward Nardell, a professor in the Departments of Environmental Health and Immunology and Infectious Diseases at the Harvard T.H. Chan School of Public Health, said air conditioning units can generate air currents that can carry large particles farther, similar to what researchers found contributed to the spread of the novel coronavirus disease in an air-conditioned restaurant in Guangzhou, China."You are not socially distanced as much, but you're re-breathing the same air that someone else just exhaled," Nardell said. "We call it rebreathed air fraction, and if someone is infectious, often asymptomatic, you're going to be rebreathing their small particles."This week, a group of 239 scientists from 32 countries asked the World Health Organization to update its COVID-19 guidance to reflect that the virus is airborne.On Thursday, the WHO released updated guidance acknowledging that airborne transmission can’t be ruled out, but stopped short of confirming that the virus spreads through the air.Instead, the WHO said the virus primarily spreads through droplet transmission, where larger particles come out of an infected person’s mouth, then fall quickly to the ground or onto surfaces. In airborne transmission, the particles stay floating for a long time.“I think they’re underweighting the importance of this airborne route based on the best available information,” said UC Berkeley Professor Emeritus William Nazaroff, one of the signatories of the letter to the WHO.He said in a poorly ventilated room, particles might linger for 30 minutes to an hour.Scientists say one of the best ways to protect yourself is to open windows, to increase the circulation of fresh air.Scientists say upgraded air filters in AC units and standalone air purifiers could also help.Germicidal lamps may also be effective, Nardell said. The technology is almost 100 years old, and has been proven effective in protecting against tuberculosis infection.The lamps, which shine ultraviolet light, are set up to shine horizontally, high up in the room to kill floating pathogens.Nardell said the technology can be deployed cheaply and easily in a number of settings.Additional reporting by Lauren Rozyla at WFTS 3159

SAN DIEGO (KGTV) -- Authorities have identified the woman who died after being hit by an armored vehicle in La Jolla Tuesday night. The medical examiner reported that Mikaela Jones was killed after walking out in front of the armored vehicle on the 8600 block of Villa La Jolla Drive around 5 p.m. Police confirmed Tuesday night that the incident had happened on the young woman's 22nd birthday. At this time, the moments leading up to Jones' death are unclear.  505

SAN DIEGO (KGTV) -- Before taking children trick-or-treating this Halloween, families are encouraged to visit The Megan's Law Website where hundreds of registered sex offenders are listed across San Diego. The search tool allows families to look up registered sex offenders in their neighborhood or other parts around the state and see them on a map."Megan’s Law also authorizes local law enforcement agencies to notify the public about sex offender registrants found to be posing a risk to public safety," the site says.The map lists markers surrounding the address used in the search.  Users can input any address and radius for a broader search. Information includes images of the sex offender, known aliases, addresses, description of the person, offenses, and a risk assessment.According to website, some of the registrants are currently in violation of their registration requirements and asks the public to contact police with information they may have about these individuals.The website was created and named after 7-year-old Megan Kanka, of New Jersey, who was brutally raped and killed in 1994 by her neighbor, Jesse Timmendequas.  Timmendequas had been convicted for sexually assaulting young girls.  After serving less than a year in a correctional facility, he  moved into a home across the street from the family without their knowledge. "In the wake of that tragedy, the Kankas sought to have local communities warned about sex offenders in the area. All states in the U.S. now have some form of Megan's Law," the website says.The website indicates that some of the registrants are currently in violation of their registration requirements. Any information you may have on these individuals should be reported to your local law enforcement agency.LINK: https://www.meganslaw.ca.gov/ 1856

SAN DIEGO (KGTV) — As more and more Americans turn to their favorite online retailers this holiday season, banks are reminding shoppers to remain vigilant for thieves on the web.According to Adobe Analytics, shoppers spent about billion online this Black Friday, and another .8 billion on Cyber Monday the following week — making it the largest shopping day online in history.While online thieves have always been a threat to shoppers, there are even more shoppers at risk today."It's more important than ever to be hyper-vigilant and protect yourself from fraud," Sarah Bilyeu with San Diego County Credit Union told 10News reporter Vanessa Paz. "We're seeing a lot more people shopping online because of stay-at-home orders and during holidays, it'll increase and it's something vital to your overall financial wellness."Bilyeu recommends shopping with websites and companies that you're familiar with or that you've already been a customer of in the past.And while it may seem simple to some, customers are also reminded to avoid clicking on unfamiliar links or opening emails they don't expect. In 2019 alone, Experian reported identity theft had resulted in .9 billion in losses.If shoppers aren't careful, a hard year on finances can be stressed with identity theft."If you are unsure, call the institution that's sending the message to check if it's a valid message," says Bilyeu. "When shopping online or engaging where you give credit card numbers, make sure you're on a secure and not public WiFi."SDCCU has more tips to keep in mind when shopping online. 1582

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