81 research outputs found

    Climate, Hydrologic Disturbance, and Succession: Drivers of Floodplain Pattern

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    Floodplains are among the world\u27s most threatened ecosystems due to the pervasiveness of dams, levee systems, and other modi. cations to rivers. Few unaltered floodplains remain where we may examine their dynamics over decadal time scales. Our study provides a detailed examination of landscape change over a 60-year period ( 1945 - 2004) on the Nyack floodplain of the Middle Fork of the Flathead River, a free-flowing, gravel-bed river in northwest Montana, USA. We used historical aerial photographs and airborne and satellite imagery to delineate habitats ( i.e., mature forest, regenerative forest, water, cobble) within the. oodplain. We related changes in the distribution and size of these habitats to hydrologic disturbance and regional climate. Results show a relationship between changes in. oodplain habitats and annual flood magnitude, as well as between hydrology and the cooling and warming phases of the Pacific Decadal Oscillation (PDO). Large magnitude floods and greater frequency of moderate floods were associated with the cooling phases of the PDO, resulting in a floodplain environment dominated by extensive restructuring and regeneration of floodplain habitats. Conversely, warming phases of the PDO corresponded with decreases in magnitude, duration, and frequency of critical flows, creating a floodplain environment dominated by late successional vegetation and low levels of physical restructuring. Over the 60-year time series, habitat change was widespread throughout the floodplain, though the relative abundances of the habitats did not change greatly. We conclude that the long- and short-term interactions of climate, floods, and plant succession produce a shifting habitat mosaic that is a fundamental attribute of natural. oodplain ecosystems

    The Grizzly, November 14, 1986

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    Alumnae Jean Garton Returns to Present Controversial Abortion Lecture • Fall Board Meeting Convenes With Retirement Plan and $1000 Tuition Increase • Women Finish 2nd in MAC Cross-Country • Letters: Still the Same After All These Years; Butting; Self-Discipline • Floodgates Should Fly Open for Greaseband Experiment • Renowned Organist to Give Concert • ProTheatre Stages Three More Gems • Profile: Annette Lucas • Red & Gold Days Reflect Well on Ursinus Life • Men\u27s Cross-Country Runs Through Muddy Course to Place 4th in MAC\u27s • Breathing Life Into a Long Sleeping Lady Hoop Program • Brown Hangs Head Now, But Young Passing Attack Sparkles • Dickinson Drowns Ursinus Swimmers in Opener • Dean, AD Discuss Drugs • New Coach Key to Gymnastics\u27 Perfect 10 • Women\u27s Studieshttps://digitalcommons.ursinus.edu/grizzlynews/1175/thumbnail.jp

    The Grizzly, February 27, 1987

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    Depts., Dean, Court New Faculty Free Agent Team • No Busts, But Bummer Booze Bar Dims Lorelei • Grizzly Poll Points Couple to Final Home • Letters: Impossible Crossings?; Adoption Instead of Abortion; Plea for Soviet Jewry • Ecoliers de Francais: Fly to France Pour Parler • Treasuring Modern Art Takes Time ... And Protest • Men\u27s B-Ball Sponsors Art Auction • Fencing Alive at Ursinus • Bears, 20-3, Looking for Fourth or Better at MAC • Swimmers to Celebrate Wins With Skins • Women Runners Capture MAC Title • Men\u27s Track Runs Third at MAC\u27s • Swimmin\u27 Women Go to MAC\u27s • Notes: Meistersingers\u27 50th Tour; Chambliss Family Lecture; Upcoming Forum Scheduled • Bear Dave Durst Dominates Entering MAC Tourney • Migliore Caps Nine-Letter Career with Athlete of the Week Honors • Two U.C. Gymnasts Go to Nat\u27ls • Robert Cray Band\u27s Strong Persuader Receives a B plushttps://digitalcommons.ursinus.edu/grizzlynews/1183/thumbnail.jp

    The Grizzly, February 5, 1988

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    Cavorting Cop Caught • Lewis Disclaims Labels at Forum • Rock\u27N America • Patterns Campaign Nears Completion • Hockey Held as Hokey • Contra-versial Censorship Irks Student • History Department Interviews a New Way • Concert Features Christian Music • Summer Study in France a Fun-do • Notes: R.A. Rap Session Announced; Presidency Probers Convene; ALF Re-runs Rewarding; Child Safety Course Offered • Men\u27s Hoopsters Suffer Temporary Setback • Track Team Making Great Strides • Record Books Rewritten • U.C. Matters: Wrestling Tough and Confident • Men \u27Mers Holding Their Ownhttps://digitalcommons.ursinus.edu/grizzlynews/1203/thumbnail.jp

    The Grizzly, December 15, 1986

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    Letters: Appeal for Artists; Use Common Sense in Regard to Smoke Alarms; Abortion Issue Spawns Another Challenge • Weeding Out the Weak at Musser • After a Prosperous Decade as President, Richter Reflects on his Life at Ursinus • Wrestling Wraps Up Winter With Albright White-Washing • Swimmin\u27 Women get a Trimmin\u27 • Varsity Hoopsters Even Season • All-American Avenue: Football\u27s Odgers; Field Hockey\u27s Johnson; Volleyball\u27s Kraszewski • Gymnastics Team Scores High in Season Opener • Letters: Court Conditions Cause Day\u27s Resignation; Coaching Cited as B-ball\u27s Achilles Heel • Students Able to Create Their Own Courses by Way of College Scholars Program • Going From Bare Douglas Fir to Santa\u27s Showplace • Tumarkin Gives Personal View of his Aggressive Couple • Ursinus\u27 Oldest Symbol • Kutztown Edges Lady-Bears • Weisel Given Peace Prize for Reminding World of the Nazi Horrors • David Marx Tells of Life Under Apartheid • Cub & Key / Sororities\u27 Phonathons • Promoting International Education at Ursinushttps://digitalcommons.ursinus.edu/grizzlynews/1178/thumbnail.jp

    The Grizzly, January 30, 1987

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    U.C. Master Plan Features Art, Roads, Humanities Building • Aggressive Couple Sparks Conflicts and Challenges • Art Critic to Explain Sculpture • Letter: Abortion Issue\u27s Indefinite Life • Editorial: Silent Scream Meets U.C. Yawn • News Notes: Effectiveness Training Course Offered; Stress Management Workshops; Who\u27s Who at Ursinus?; Voice Workshop Offered; Enhance Self Presentation; Grammar and Writing Course • Jones Recalls Fetterolf of Yesteryear • Racich has Bears Rolling Toward MAC Riches • Bear Hoopsters Fall From First • Men Mers Rip Scranton in First Historical Meeting • Men\u27s Track Banking on Distance and Field • Gymnasts Open Semester With Split • Soccer\u27s Quinn a Standout • Swimmin\u27 Women Use Off-Season Workouts to Advantage at 3-3 • Odgers Makes Grade on and off Field • Davidson Assumes Presidency of PSAHPERD • Arthur Vining Davis Foundation Offers $60,000 to Support Residential Village • Development\u27s Randolph Introduces STAR Committee • Alderfer Takes Championship, Badminton Opens • Gall Finds the Way it is Fresh and New • Lionarons Leads Lecture • 1987 Class Chairmen Sought by Applicationhttps://digitalcommons.ursinus.edu/grizzlynews/1179/thumbnail.jp

    The Grizzly, January 29, 1988

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    Social Changes at Ursinus Become Evident • New Student Center Instituted • Restructuring Plagues Pledging System • Commencement Tradition to Change • Letters: Speak for Outside Graduation; Response to Tuition Increase • Swanson: No Chicken Fillet • Lewis to Present Black Perspective • Notes: Wismer Chimneys Smoked Out; Noon Aerobics Active Again; Chic Sharp Shooters Sought; Air Band Contest Announced • Men\u27s B-ball Win Brings Hopes for National Ranking • Match-Tough Matters Ready for Tourney • Gymnasts Take Bear Classic • Swimmers Stroke Victory in Season Opener • Bears Looking Hot in Winter Track • Chemistry Key for 1st Place Bears • Koffel\u27s Silver Anniversary Made Golden • Shikoda Not Far from Home • Europe Encounter Enraptures Jones • Rock \u27N Roll Forum • Robertson\u27s Release Rocks with Rhythmhttps://digitalcommons.ursinus.edu/grizzlynews/1202/thumbnail.jp

    The Grizzly, April 10, 1987

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    Pfahler Hall Flooded • L.C.B. Visits a Second Time • Our Town Debuts • Letters: Director of Security at Sheraton Responds to Student Attack on Lorelei; Brothers of AXE Commended; Grizzly Dogged • Skunked Again • Students to Participate in Model UN Conference • Salamanca to Relate Experiences on Terrorism • Bard Graces Ursinus • Notes: UC / St. Joseph\u27s Host MBA Summer Session; Myrin Holds Semi-Annual Book Sale; New Resident Assistants Announced • Athlete of the Week: Kim Wentzel • Santangelo, O\u27Malley Jump Lady Bears to 6-0 Start • Women\u27s Tennis Served Tough Losses • Track\u27s Record: Record Breaking • Ursinus\u27 Champion Lacrosse Team: Vying for Fourth National Title • Opposition Unfavorable to Bears • Golf Team Drives Record to 8-0 • Softball Assumes First Place Position • Room Selection to Start • The Joshua Tree Rates an A • Young Democrats: Exhibiting New Challenges for the Future • Advanced TV Class Produces Ursinus Magazine For Cable Network • Arbor Day Trees Grow Money • Bear Facts: Ursinus Mascot Bearly Knownhttps://digitalcommons.ursinus.edu/grizzlynews/1187/thumbnail.jp

    Texas Center for Digital Humanities and New Media

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    We propose the creation of a Center for Digital Humanities, Media and Culture (formerly titled Texas Center for Digital Humanities and New Media). The Center will address two related grand challenges: the need to investigate the relationship of computing technologies and culture, and the need to construct cyberinfrastructure for the humanities and social sciences. The Center’s research, focused in four interrelated areas -- the cultural record, cultural systems, cultural environments, and cultural interactions in the digital age – engages one of the most compelling questions of our time: What does it mean to be human in the digital age

    Subsequent Surgery After Revision Anterior Cruciate Ligament Reconstruction: Rates and Risk Factors From a Multicenter Cohort

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    BACKGROUND: While revision anterior cruciate ligament reconstruction (ACLR) can be performed to restore knee stability and improve patient activity levels, outcomes after this surgery are reported to be inferior to those after primary ACLR. Further reoperations after revision ACLR can have an even more profound effect on patient satisfaction and outcomes. However, there is a current lack of information regarding the rate and risk factors for subsequent surgery after revision ACLR. PURPOSE: To report the rate of reoperations, procedures performed, and risk factors for a reoperation 2 years after revision ACLR. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: A total of 1205 patients who underwent revision ACLR were enrolled in the Multicenter ACL Revision Study (MARS) between 2006 and 2011, composing the prospective cohort. Two-year questionnaire follow-up was obtained for 989 patients (82%), while telephone follow-up was obtained for 1112 patients (92%). If a patient reported having undergone subsequent surgery, operative reports detailing the subsequent procedure(s) were obtained and categorized. Multivariate regression analysis was performed to determine independent risk factors for a reoperation. RESULTS: Of the 1112 patients included in the analysis, 122 patients (11%) underwent a total of 172 subsequent procedures on the ipsilateral knee at 2-year follow-up. Of the reoperations, 27% were meniscal procedures (69% meniscectomy, 26% repair), 19% were subsequent revision ACLR, 17% were cartilage procedures (61% chondroplasty, 17% microfracture, 13% mosaicplasty), 11% were hardware removal, and 9% were procedures for arthrofibrosis. Multivariate analysis revealed that patients aged <20 years had twice the odds of patients aged 20 to 29 years to undergo a reoperation. The use of an allograft at the time of revision ACLR (odds ratio [OR], 1.79; P = .007) was a significant predictor for reoperations at 2 years, while staged revision (bone grafting of tunnels before revision ACLR) (OR, 1.93; P = .052) did not reach significance. Patients with grade 4 cartilage damage seen during revision ACLR were 78% less likely to undergo subsequent operations within 2 years. Sex, body mass index, smoking history, Marx activity score, technique for femoral tunnel placement, and meniscal tearing or meniscal treatment at the time of revision ACLR showed no significant effect on the reoperation rate. CONCLUSION: There was a significant reoperation rate after revision ACLR at 2 years (11%), with meniscal procedures most commonly involved. Independent risk factors for subsequent surgery on the ipsilateral knee included age <20 years and the use of allograft tissue at the time of revision ACLR
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