The University of Washington in Seattle is a big place. It includes the Institute for Health Metrics and Evaluation (IHME), which has produced a widely-circulated and widely-criticized coronavirus model. As we’ve discussed, the IHME model is essentially a curve-fitting exercise that makes projections using the second derivative of the time trend on the log scale. […]

By default, ggplot expands the space above and below the x-axis (and to the left and right of the y-axis). Andrew has made it pretty clear that he thinks the x axis should be drawn at y = 0. To remove the extra space around the axes when you have continuous (not discrete or log […]

David Rohde points us to this new seminar series that has the following description: Machine learning is changing the world we live in at a break neck pace. From image recognition and generation, to the deployment of recommender systems, it seems to be breaking new ground constantly and influencing almost every aspect of our lives. […]

After getting 80 zillion comments on that last post with all that political content, I wanted to share something that’s purely technical. It’s something Bob Carpenter wrote in a conversation regarding implementing algorithms in Stan: One thing we are doing is having the matrix library return more expression templates rather than copying on return as […]

Proposal to temporarily loosen restrictions on on-site sales faces uncertain prospect in session's final days.

Baltimore Orioles' Trey Mancini announced Tuesday he is undergoing chemotherapy for Stage 3 colon cancer. 

Clapp, Martha Aug 16, 1940 - Apr 26, 2020 Martha (Marti) Clapp was an awesome woman, her many, many friends would attest to that. .....

Slater Appleby, Marion Mar 9, 1923 - Apr 29, 2020 Marion S. Appleby, 97 of Venice, formally of Waterford, CT passed peacefully in the .....

Grand Canyon National Park is closed.

Information about rescheduling backcountry permit reservations can be obtained by emailing grca_bic@nps.gov

Due to the closure of Grand Canyon National Park, backcountry permits are not being issued, and staff are instructed to deny any permit requests they receive. Please wait to submit new backcountry permit requests until the park re-opens (we do not know when that might be). Thank you for your patience and understanding!

An opinion was filed by the United States Court of Appeals for the Ninth Circuit today, affirming the United States District Court’s entry of summary judgment for the National Park Service in a lawsuit titled “River Runners for Wilderness, et al v. Stephen P. Martin, et al. https://www.nps.gov/grca/learn/news/united-states-court-of-appeals-for-the-ninth-circuit-rules-in-favor-of-national-park-service-in-lawsuit-challenging-grand-canyon-national-parks-colorado-river-management-plan.htm

https://www.nps.gov/grca/learn/news/grand-canyon-hiker-discovered-deceased-below-north-rim-near-toroweap-valley.htm

National Park Service approves temporary mule ride on South Rim of Grand Canyon https://www.nps.gov/grca/learn/news/national-park-service-approves-temporary-mule-ride-on-south-rim-of-grand-canyon.htm

A new exhibit is on display at Williams’ historic train depot; and the eye-catching photographs were all taken by Arizona youth.  https://www.nps.gov/grca/learn/news/2009-12-18_photos.htm

Grand Canyon National Park Superintendent Steve Martin today announced that the park will begin accepting applications for a commercial use authorization (CUA) for bicycle rental operations on Grand Canyon National Park’s South Rim.  https://www.nps.gov/grca/learn/news/grand-canyon-national-park-accepting-applications-for-bicycle-rental-operation-commercial-use-authorization.htm

The National Park Service is now accepting applications for noncommercial river trip permits to raft the Colorado River through Grand Canyon National Park. The permits are for specific launch dates within calendar year 2011. https://www.nps.gov/grca/learn/news/national-park-service-accepting-applications-for-noncommercial-colorado-river-rafting-permits-for-2011-calendar-year.htm

At approximately 4:00 p.m. on Monday, August 9, rangers freed the second of two boats which became stranded over the weekend at Crystal Rapid on the Colorado River in Grand Canyon National Park. https://www.nps.gov/grca/learn/news/10aug10-2_news.htm

On February 7 - 9, 2011, Grand Canyon Railway, in consultation with the National Park Service (NPS), will be applying herbicide along their railroad tracks including those within Grand Canyon National Park. https://www.nps.gov/grca/learn/news/2011-01-25_hervicide.htm

The National Park Service is now accepting applications for noncommercial river trip permits to raft the Colorado River through Grand Canyon National Park. The permits are for specific launch dates within calendar year 2012. https://www.nps.gov/grca/learn/news/2011-02-01_lottery.htm

Vegetation Program to Apply Herbicide within Developed Areas of Grand Canyon National Park https://www.nps.gov/grca/learn/news/vegetation-program-to-apply-herbicide-within-developed-areas-of-grand-canyon-national-park.htm

In April 2011, five students from Bigfork High School Cave Club (Bigfork, MT) and their sponsor spent a week with Grand Canyon National Park Hydrologist and Cave Resources Manager, Steve Rice, conducting cave resource inventories, impact analysis, and repeat photography of several backcountry cave sites. https://www.nps.gov/grca/learn/news/bigfork-high-school-cave-club-completes-inventory-and-impact-mapping-of-caves-in-grand-canyon-national-park.htm

A man whose body was found next to his car at the Cape Royal Trailhead on the North Rim of Grand Canyon National Park has been identified as Donald Haney of Cherokee Village, Arkansas. https://www.nps.gov/grca/learn/news/2011-10-04_nr-ident.htm

On February 7, 2012, Grand Canyon Railway, in consultation with the National Park Service (NPS), will be applying herbicide along their railroad tracks including those within Grand Canyon National Park. https://www.nps.gov/grca/learn/news/2012-01-24_herbicide.htm

Starting in May and continuing through September, the National Park Service will be applying herbicide to targeted, high priority, invasive plant species as part of an ongoing invasive plant management program in Grand Canyon National Park. https://www.nps.gov/grca/learn/news/2012-04-24_herbicide.htm

Man Collapses and Dies on Bright Angel Trail in Grand Canyon National Park https://www.nps.gov/grca/learn/news/man-collapses-and-dies-on-bright-angel-trail-in-grand-canyon-national-park.htm

The man who collapsed and died on the Bright Angel Trail in Grand Canyon yesterday has been identified as 72 year-old David Roberts of Cleveland, Tennessee. https://www.nps.gov/grca/learn/news/man-who-collapsed-and-died-on-bright-angel-trail-in-grand-canyon-national-park-is-identified.htm

Grand Canyon National Park’s Artist-in-Residence (AiR) program is now accepting artist applications for the upcoming North and South Rim AiR seasons https://www.nps.gov/grca/learn/news/2013-02-08_air-app.htm

Grand Canyon National Park will celebrate the 43rd anniversary of Earth Day with a weekend of activities April 19 – 21, 2013. The weekend will include a film about conservationist Aldo Leopold, a keynote presentation by author Mary Ellen Hannibal, and a day of fun and educational activities. https://www.nps.gov/grca/learn/news/2013-03-22_earth-day.htm

Throughout the upcoming field season, National Park Service staff will be applying herbicide to targeted high priority invasive plant species in Grand Canyon National Park’s developed areas. Developed areas of the park have increased levels of human disturbance, which contribute to the high concentration of invasive plants in these areas. https://www.nps.gov/grca/learn/news/national-park-service-staff-to-apply-herbicide-within-developed-areas-of-grand-canyon-national-park.htm

Grand Canyon National Park has begun improvements to Cape Royal Road on the North Rim. Beginning September 3, 2013 Cape Royal Road from Roosevelt Point to Cape Royal Point, at approximately mile 11.5, will be closed for repaving. https://www.nps.gov/grca/learn/news/road-improvements-to-temporarily-close-portion-of-cape-royal-road-on-the-north-rim-of-grand-canyon-national-park.htm

Grand Canyon National Park has begun improvements to Cape Royal Road on the North Rim. Beginning September 3, 2013 Cape Royal Road from Roosevelt Point to Cape Royal Point, at approximately mile 11.5, will be closed for repaving. Vehicles over 20 feet in length will not be permitted on Cape Royal Road for the duration of construction. https://www.nps.gov/grca/learn/news/updated-road-improvements-to-temporarily-close-portion-of-cape-royal-road-on-the-north-rim-of-grand-canyon-national-park.htm

Cape Royal Road at Grand Canyon National Park Closed. All Other Roads Including Point Imperial Road Remain Open https://www.nps.gov/grca/learn/news/update-cape-royal-road-at-grand-canyon-national-park-closed.htm

On Thursday, February 13th, Grand Canyon Railway, in consultation with the National Park Service (NPS), will be applying herbicide along their railroad tracks including those within Grand Canyon National Park. https://www.nps.gov/grca/learn/news/herbicide-to-be-applied-along-railway-within-grand-canyon-national-park.htm

Throughout the upcoming field season, National Park Service staff will be applying herbicide to targeted high priority invasive plant species in Grand Canyon National Park's developed areas. https://www.nps.gov/grca/learn/news/herbicide-to-be-applied-within-developed-areas-of-grand-canyon-national-park.htm

On Wednesday, June 11 at approximately 2:00 p.m. the National Park Service received a call reporting an unconscious male kayaker at Badger Rapids, river mile 8 on the Colorado River within Grand Canyon National Park. https://www.nps.gov/grca/learn/news/kayaker-fatality-badger-rapids.htm

Grand Canyon National Park, the National Park Service Office of Public Health, Coconino County Public Health Services District, and other park partners are investigating a positive case of tick-borne relapsing fever (TBRF) contracted by a recent visitor to the North Rim. https://www.nps.gov/grca/learn/news/tick-borne-relapsing-fever.htm

The U.S. Department of the Interior has released a proposed framework for adaptively managing Glen Canyon Dam over the next 20 years with the goal of creating certainty and predictability for power and water users while protecting environmental and cultural resources in Grand Canyon National Park and the Colorado River ecosystem. The draft environmental impact statement (EIS) is available to the public for review and comment for 90 days. https://www.nps.gov/grca/learn/news/interior-proposes-adaptive-management-framework-for-glen-canyon-dam.htm

On March 16th or 17th, Grand Canyon Railway, in consultation with the National Park Service, will apply herbicide along their railroad tracks. https://www.nps.gov/grca/learn/news/herbicide-application-railroad.htm

Grand Canyon National Park will waive entrance fees April 16-24, 2016 to celebrate National Park Week and the National Park Service Centennial. To join in on the week-long celebration, visitors can attend ranger programs, cultural demonstrations, and Earth Day events. https://www.nps.gov/grca/learn/news/national-park-week-fee-free-days.htm

The U.S. Department of the Interior today released the Final Environmental Impact Statement (FEIS) for a Long-Term Experimental and Management Plan (LTEMP) for Glen Canyon Dam operations. https://www.nps.gov/grca/learn/news/final-eis-glen-canyon-adaptive-management.htm

Due to an unanticipated rockslide the National Park Service (NPS) will close the Colorado River Trail between Pipe Creek and the Silver Bridge for trail repair starting Monday, April 3. https://www.nps.gov/grca/learn/news/repairs-close-river-trail.htm

On Saturday evening, April 15 the National Park Service received an alert from a personal locating beacon in a backcountry area of Grand Canyon National Park near the confluence of Tapeats Creek and Thunder River. https://www.nps.gov/grca/learn/news/missing-hikers-tapeats.htm

On March 29, 2018, the National Park Service (NPS) will begin installing one test well and two monitoring wells next to Bright Angel Creek near Phantom Ranch. https://www.nps.gov/grca/learn/news/test-wells.htm

Another major phase of the South Rim Roads Improvement Project is set to begin Thursday, April 19, when contractors pave Village Loop Drive. https://www.nps.gov/grca/learn/news/south-rim-paving.htm

Fire crews are actively working to suppress the lightning ignited Imperial Fire. Currently the fire is estimated to be three (3) acres in size and is located along the Cape Royal Road near Vista Encantada. https://www.nps.gov/grca/learn/news/imperial-fire-being-suppressed-on-north-rim-of-grand-canyon-national-park-20180718.htm

On April 3, 2019, Grand Canyon Railway, in consultation with the National Park Service (NPS), will be applying herbicide along the railroad tracks including those within Grand Canyon National Park. https://www.nps.gov/grca/learn/news/grand-canyon-railway-herbicide.htm

Grand Canyon National Park invites the public to celebrate the 49th anniversary of Earth Day during National Park Week with free entrance on Saturday, April 20, 2019. https://www.nps.gov/grca/learn/news/celebrate-earth-day-at-grand-canyon-national-park-with-fee-free-entrance-on-april-20.htm

From April 15 to 30, 2019 the Grand Canyon National Park Division of Science and Resource Management (SRM) will be applying cut-stump and occasional spot spray treatments of herbicide to invasive plants along the banks of the Colorado River to aid in the control of several invasive plant species for which mechanical removal is ineffective. https://www.nps.gov/grca/learn/news/grca-apply-herbicide-along-co-river-2019.htm

From Tuesday, May 16 to Wednesday, May 17 the Grand Canyon National Park Division of Science and Resource Management (SRM) will apply minor spot spray treatments of herbicide around the Grand Canyon Lodge and campground in the North Rim Developed Area to aid in the control of an especially invasive grass species for which mechanical removal is ineffective. https://www.nps.gov/grca/learn/news/grca-apply-herbicide-on-nr-2019.htm

On Tuesday, June 4 and Wednesday, June 5 staff from the Division of Science and Resource Management (SRM) will be applying herbicide to the traffic islands on South Entrance and Yavapai Roads to remove grasses that attract elk in these congested areas of the Grand Canyon Village. The intent of the removal is to minimize conflicts between wildlife (elk) and both visitors and residents along the road corridors. https://www.nps.gov/grca/learn/news/south-entrance-and-yavapai-herbicide-use.htm