中山什么叫便秘(中山拉大便喷血怎么回事) (今日更新中)

SAN DIEGO (KGTV) -- For over a decade, SDSU associate professor of chemistry Gregory Holland has been researching spiders and particularly black widow’s silk.They’ve come to the realization, through their research, that the properties of black widow silk are stronger than steel and tougher than the Kevlar in bulletproof vests.Gregory Holland, SDSU associate professor of analytical chemistry and Northwestern chemistry professor Nathan Gianneschi said their collaboration shows the organization of the molecules involved in silk production is more complex than previously thought.There are companies that use synthetic spider silk but its the specific black widow spider silk that has the top tier benefits.“The synthetic spider silk its not a bad material, its just not as good as the real thing," Holland said.Holland says the company that creates synthetic silk actually has partnerships with Adidas and Patagonia. "The most important thing is a spider does it low energy, environmentally friendly. It’s just protein water and salt”.Once they reach the point where they’re able to identically replicate the silk of a black widow spider, the artificial version could be used in building materials for bridges or environmentally friendly replacements for plastic.Black widows (Latrodectus hesperus) spin a lightweight thread much stronger than that of other spider species, with draglines that can stretch an extra 25 percent of their length before snapping.The composition of the spun silk fibers was previously identified, but the structure of the proteins involved in producing them has been more of a mystery, now one step closer. 1650

SAN DIEGO (KGTV) -- Five people were injured following a crash in Kearny Mesa involving an ambulance Thursday afternoon. According to the San Diego Fire-Rescue Department, the crash happened around 2:15 near Kearny Villa Road and Balboa Avenue. According to police, a preliminary investigation indicates that the driver of an Infinity was speeding in a northbound lane on Kearny Villa Road when he crossed into oncoming traffic, hitting the ambulance and shoving a Hyundai to the side of the road. The driver of the infinity suffered non-life threatening injuries while his passenger suffered several broken bones and internal injuries considered life threatening. The driver and passenger of the ambulance and driver of the Hyundai all suffered non-life threatening injuries. Everyone involved in the crash was taken to the hospital, police say. Update #1 regarding Traffic alert. 5 injured with several being serious injuries. No patient was in the ambulance at the time. Detectives are now at the scene investigating. Updates to follow pic.twitter.com/OEQgBTwjen— San Diego Police Department (@SanDiegoPD) May 16, 2019 1129

SAN DIEGO (KGTV) — Friends are expected to come together to remember the Navy sailor shot and killed while checking on an apparent stalled vehicle.A vigil for 21-year-old Curtis Adams will be held Saturday at Breakers Beach on Naval Station Coronado. Those attending will need valid military identification since the vigil is on-base.Adams was shot and killed on Interstate 15 near Mountain View in the early morning hours of Oct. 27. The Navy sailor was checking on a stopped car to see if the driver needed help, according to San Diego Police.RELATED: 561

SAN DIEGO (KGTV) — Gusty offshore winds and high temperatures will work their way back into San Diego County this week.San Diego Fire-Rescue is expected to beef of staffing Sunday through Monday in anticipation of the Santa Ana wind event forecasted to start Sunday night.Sunday, winds will turn offshore and become gusty along coastal slopes, according to the National Weather Service. High pressure will add to the warming, increasing the risk for wildfires.NWS forecasts a high of 76 degrees and low of 58 degrees, Sunday.WEATHER: Check updated conditions across San Diego County Those temps rise Monday, with a forecasted high of 85 degrees and low 62 degrees. Monday will see winds shift east, as winds shifts through the coastal slopes and into San Diego County mountains and foothills. Wind speeds may sit at 15-25 mph, with gusts up to 30-40 mph. Humidity levels will hover near 10%, elevating the fire danger.Breezy conditions are expected to continue into Tuesday morning, before weakening that afternoon. Low humidity and warm temperatures, with periods of easterly winds, will be common throughout the week, NWS says. 1138

SAN DIEGO (KGTV) -- Hundreds gathered outside Fire Station 21 in Pacific Beach Tuesday evening to remember a San Diego Fire-Rescue Department firefighter killed in a motorcycle crash over the weekend.Ryan Ferrara, 39, was riding on the back of the motorcycle as a passenger when it crashed into a parked vehicle. It happened July 18 at the 13000 block of Piping Rock Lane in the Lakeside area.The driver of the motorcycle was hospitalized; he has not yet been identified. Authorities say neither the driver nor Ferrara were wearing helmets.RELATED: San Diego firefighter killed in Lakeside-area motorcycle crashThe crash is still under investigation, but the San Diego County Medical Examiner's Office says alcohol or drugs may have been factors in the crash.Many who knew Ferrara were visibly distraught during Tuesday's remembrance ceremony. At sunset, the crowds moved to the boardwalk and sands. Many firefighters were there to show the family their support.Capt. Rich Marcello, who worked with Ferrara, says it's a Fire Station 21 tradition to go down to the beach and watch the sunset after every shift when possible."Every evening, we come out and watch the sunset and gather round each other and kind of hang out with each other, which is why we're here with the family today," he said.Before he was a firefighter, Ferrara was a lifeguard. In his free time, he loved to surf, according to those who knew him."Everybody loved him, great Personality. He's just the whole package," Marcello said. 1509

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