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Lafayette Walker
Joseph R. Vasquez
Apr 01, 2021
Lafayette Walker (1822 – 1902), an enslaved black man in Tennessee before the Civil War, became a soldier for the Union in 1861. After the war, he was regarded as a political activist, as a community leader capable of...
Published by: Digital Commons @ Texas A&M University-San Antonio
Lafayette Walker
Joseph R. Vasquez
Apr 01, 2021
Lafayette Walker (1822 – 1902), an enslaved black man in Tennessee before the Civil War, became a soldier for the Union in 1861. After the war, he was regarded as a political activist, as a community leader capable of...
Published by: Digital Commons @ Texas A&M University-San Antonio
HERA Phase i Limits on the Cosmic 21 cm Signal
Z Abdurashidova, JE Aguirre, P Alexander, ZS Ali, Y Balfour, R Barkana, AP Beardsley, G Bernardi, TS Billings, JD Bowman, RF Bradley, P Bull, J Burba, S Carey, CL Carilli, C Cheng, DR DeBoer, M Dexter, E De Lera Acedo, JS Dillon, J Ely, A Ewall-Wice, N Fagnoni, A Fialkov, R Fritz, SR Furlanetto, K Gale-Sides, B Glendenning, D Gorthi, B Greig, J Grobbelaar, Z Halday, BJ Hazelton, S Heimersheim, JN Hewitt, J Hickish, DC Jacobs, A Julius, NS Kern, J Kerrigan, P Kittiwisit, SA Kohn, M Kolopanis, A Lanman, P La Plante, T Lekalake, D Lewis, A Liu, YZ Ma, D Macmahon, L Malan, C Malgas, M Maree, ZE Martinot, E Matsetela, A Mesinger, J Mirocha, M Molewa, MF Morales, T Mosiane, JB Munoz, SG Murray, AR Neben, B Nikolic, CD Nunhokee, AR Parsons, N Patra, S Pieterse, JC Pober, Y Qin, N Razavi-Ghods, I Reis, J Ringuette, J Robnett, K Rosie, MG Santos, S Sikder, P Sims, C Smith, A Syce, N Thyagarajan, PKG Williams, H Zheng
Jan 28, 2022
Recently, the Hydrogen Epoch of Reionization Array (HERA) collaboration has
produced the experiment's first upper limits on the power spectrum of 21-cm
fluctuations at z~8 and 10. Here, we use several independent theoretical...
Lafayette Walker
Joseph R. Vasquez
Apr 01, 2021
Lafayette Walker (1822 – 1902), an enslaved black man in Tennessee before the Civil War, became a soldier for the Union in 1861. After the war, he was regarded as a political activist, as a community leader capable of...
Published by: Digital Commons @ Texas A&M University-San Antonio
First Results from HERA Phase I
Z Abdurashidova, JE Aguirre, P Alexander, ZS Ali, Y Balfour, AP Beardsley, G Bernardi, TS Billings, JD Bowman, RF Bradley, P Bull, J Burba, S Carey, CL Carilli, C Cheng, DR DeBoer, M Dexter, E De Lera Acedo, T Dibblee-Barkman, JS Dillon, J Ely, A Ewall-Wice, N Fagnoni, R Fritz, SR Furlanetto, K Gale-Sides, B Glendenning, D Gorthi, B Greig, J Grobbelaar, Z Halday, BJ Hazelton, JN Hewitt, J Hickish, DC Jacobs, A Julius, NS Kern, J Kerrigan, P Kittiwisit, SA Kohn, M Kolopanis, A Lanman, P La Plante, T Lekalake, D Lewis, A Liu, D Macmahon, L Malan, C Malgas, M Maree, ZE Martinot, E Matsetela, A Mesinger, M Molewa, MF Morales, T Mosiane, SG Murray, AR Neben, B Nikolic, CD Nunhokee, AR Parsons, N Patra, R Pascua, S Pieterse, JC Pober, N Razavi-Ghods, J Ringuette, J Robnett, K Rosie, P Sims, S Singh, C Smith, A Syce, N Thyagarajan, PKG Williams, H Zheng
Feb 07, 2022
We report upper-limits on the Epoch of Reionization (EoR) 21 cm power
spectrum at redshifts 7.9 and 10.4 with 18 nights of data ($\sim36$ hours of
integration) from Phase I of the Hydrogen Epoch of Reionization Array (HERA).
The...
Importance of a measurement of F(L)(X,Q**2) at HERA.
Robert S Thorne
Jan 26, 2010
I investigate what a direct measurement of the longitudinal structure function
FL(x,Q2) could teach us about the structure of the proton and the best way in
which to use perturbative QCD for structure functions. I assume HERA...
The Grizzly, September 23, 1996
Jared Rakes, Erin Gambeski, Taneille Smith, Todd Brenneman, Mark Turney, Sean Campbell, Jen Mintzer, Cristin Veit, Kerrie McKinney, Teresa Green, Joel Schofer, Brian Hamrick, Tony Palladino, Andrew Ruhf, Hera Walker
Jan 01, 0001
Internet Censorship Issue Addressed by Stefan Presser Opinions: Life in a Determinist World; Are Guns Necessary? Study Abroad to Have Fun and Learn Get Moving: A Guide to the Benefits of Exercise Anthonisen Exhibit Captures...
Ursinus College Collegeville Pennsylvania newspaper Soccer field hockey Volleyball Football Megan Larkin Berman Art Museum study abroad NRA Ryan Auch ACLU Censorship cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
The Grizzly, March 5, 1996
Marc Ellman, Mark Leiser, Jason Bechtel, Melissa Forbes, Jared Rakes, Chris Bowers, Hera Walker, Colin Tucker, Laurie Falcone, Christy Kenny, Denelle Godek, Jennifer Urban, Joel Schofer, Charlie Weingroff
Jan 01, 0001
Airband Raises $5,000 Borsdorf Appointed by Governor Ridge All About Pledging Opinions: A Feminist's Point of View; "My God"; The Role of the Soul in Evolution; Don't Knock it Unless You've Tried it; Souls and Science: Where...
Ursinus College Collegeville Pennsylvania newspaper softball gymnastics Carrie Luka Swimming wrestling Mike Ortman E. Diane Lyle-Smith Elizabeth Buckenmyer Wismer dining hall Berman Art Museum Atheism premarital sex evolution pledging Airband Laura Borsdorf cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
The Grizzly, March 3, 1997
Jared Rakes, Taneille Smith, Marshalee Clarke, Teresa Green, Todd Brenneman, Brian Hamrick, Jen Mintzer, Joseph Catalfano, Trish Daley, Erin Gambeski, Cristin Veit, Angie Kurtz, Joel Schofer, Hera Walker
Jan 01, 0001
China Mourns the Loss of a Leader Pipes Lectures on Mid-East Opinion: The Liberal Arts Education Part I, Multiculturalism and Diversity; What is There to Hide? Unobtainable Security Reports Make Us Feel Unsafe; Pledging and...
Ursinus College Collegeville Pennsylvania newspaper Basketball Steve Gilbert study abroad German Club fraternities sororities campus security Diversity pledging Daniel Pipes cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
The Grizzly, November 18, 1996
Jared Rakes, Erin Gambeski, Trish Daley, Tim McCoy, Teresa Green, Taneille Smith, Kim Madden, Cristin Veit, Mike Podgorski, Joel Schofer, Brian Hamrick, Meghan Gualtieri, Hera Walker
Jan 01, 0001
Bears Beat Dickinson, Make NCAA Playoffs Security and RLO Work Through Changes Opinion: Question of Security; An Insider Throwing out a Line; One of Four Seasons; It's All in Your Head Concert and Jazz Bands to Perform Jude...
Ursinus College Collegeville Pennsylvania newspaper Football Soccer Concert Band Racism Diversity campus security cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
The Grizzly, November 4, 1996
Jared Rakes, Erin Gambeski, Linda Tran, Teresa Green, Trish Daley, Sean Campbell, Taneille Smith, Cristin Veit, Amy Brungess, Michael Podgorski, Joel Schofer, Joseph Catalfano, Brian Hamrick, Hera Walker
Jan 01, 0001
Berman Exhibit Focuses on the Environment Chemist Speaks on Authentication Processes Dr. Borsdorf Lauded Opinion: Future of America; Are we too Dependent on Computers?; Questions on Openness? This Wednesday is Unity Day! ...
Ursinus College Collegeville Pennsylvania newspaper Football Megan Larkin Soccer field hockey Diversity Unity Day Laura Borsdorf Berman Art Museum Kate Duffy cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
Bicycle helmet wearing is associated with closer overtaking by drivers
There is a body of research on how driver behaviour might change in response to bicyclists’ appearance. In 2007, Walker published a study suggesting motorists drove closer on average when passing a bicyclist if the rider wore a...
Bicycle helmets Bicyclists Overtaking /dk/atira/pure/subjectarea/asjc/3300/3307 name=Human Factors and Ergonomics /dk/atira/pure/subjectarea/asjc/2200/2213 name=Safety, Risk, Reliability and Quality /dk/atira/pure/subjectarea/asjc/2700/2739 name=Public Health, Environmental and Occupational Health /dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_being name=SDG 3 - Good Health and Well-being
Bicycle helmet wearing is associated with closer overtaking by drivers
There is a body of research on how driver behaviour might change in response to bicyclists’ appearance. In 2007, Walker published a study suggesting motorists drove closer on average when passing a bicyclist if the rider wore a...
Bicycle helmets Bicyclists Overtaking /dk/atira/pure/subjectarea/asjc/3300/3307 name=Human Factors and Ergonomics /dk/atira/pure/subjectarea/asjc/2200/2213 name=Safety, Risk, Reliability and Quality /dk/atira/pure/subjectarea/asjc/2700/2739 name=Public Health, Environmental and Occupational Health /dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_being name=SDG 3 - Good Health and Well-being
Validation of the HERA Phase i Epoch of Reionization 21 cm Power Spectrum Software Pipeline
JE Aguirre, SG Murray, R Pascua, ZE Martinot, J Burba, JS Dillon, DC Jacobs, NS Kern, P Kittiwisit, M Kolopanis, A Lanman, A Liu, L Whitler, Z Abdurashidova, P Alexander, ZS Ali, Y Balfour, AP Beardsley, G Bernardi, TS Billings, JD Bowman, RF Bradley, P Bull, S Carey, CL Carilli, C Cheng, DR DeBoer, M Dexter, E De Lera Acedo, J Ely, A Ewall-Wice, N Fagnoni, R Fritz, SR Furlanetto, K Gale-Sides, B Glendenning, D Gorthi, B Greig, J Grobbelaar, Z Halday, BJ Hazelton, JN Hewitt, J Hickish, A Julius, J Kerrigan, SA Kohn, P La Plante, T Lekalake, D Lewis, D Macmahon, L Malan, C Malgas, M Maree, E Matsetela, A Mesinger, M Molewa, MF Morales, T Mosiane, AR Neben, B Nikolic, AR Parsons, N Patra, S Pieterse, JC Pober, N Razavi-Ghods, J Ringuette, J Robnett, K Rosie, MG Santos, P Sims, S Singh, C Smith, A Syce, N Thyagarajan, PKG Williams, H Zheng
Jan 28, 2022
We describe the validation of the HERA Phase I software pipeline by a series
of modular tests, building up to an end-to-end simulation. The philosophy of
this approach is to validate the software and algorithms used in the Phase...
The Grizzly, October 28, 1996
Jared Rakes, Trish Daley, Lauren Newkirk, Teresa Green, Tarik Qasim, Erin Gambeski, Sean Campbell, Caroline Kurtz, Amy K. Davenport, Todd Brenneman, Joseph Catalfano, Brian Hamrick, Cristin Veit, Kevin McCray, Charlie Weingroff, Hera Walker
Jan 01, 0001
Alice Parker Conducts College Choir A Question on Diversity Security Flash New Curriculum for Comm. Arts Opinions: More on the Gun Control Debate; The Debates of Nothingness; How Open Are You? Voting for Dole in '96; I'm...
Ursinus College Collegeville Pennsylvania newspaper Football Volleyball Soccer field hockey Education Club e-mail Karl Yergey Bob Dole Christopher Jones Communication Studies Diversity Alice Parker cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
The Impact of Beam Variations on Power Spectrum Estimation for 21 cm Cosmology. I. Simulations of Foreground Contamination for HERA
Abstract
Detecting cosmological signals from the Epoch of Reionization (EoR) requires high-precision calibration to isolate the cosmological signals from foreground emission. In...
H Kim, BD Nhan, JN Hewitt, NS Kern, JS Dillon, E De Lera Acedo, SBC Dynes, N Mahesh, N Fagnoni, DR DeBoer
Jan 04, 2023
The Grizzly, March 24, 1997
Jared Rakes, Melissa Forbes, Tim McCoy, Teresa Green, Kristen Schumann, Michael Podgorski, Rebekah Ruth, Angie Kurtz, Todd Brenneman, Mark Pinsk, Daneen Stamps, Trish Daley, Erin Gambeski, Brian Hamrick, Julie Fillman, Meghan Gualtieri, Cristin Veit, Joel Schofer, Hera Walker
Jan 01, 0001
Alternative Spring Break Unites Students, Charity Author Ntozake Shange Reads, Lectures in Olin New Chair of Campus Ministries Committee Wicks House to Open in Fall Ursinus is Ranked Among Best Science Schools Opinion: Some...
Ursinus College Collegeville Pennsylvania newspaper softball gymnastics Ray McMahon wrestling tennis Darren Torsone baseball lacrosse Basketball Amy Minnich Gary Rhodenbaugh campus security Diversity pledging college rankings Kathrine Wicks-Perry Marian P. Shearer Ntozake Shange Appalachian Service Project cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
The Grizzly, February 3, 1997
Jared Rakes, Erin Gambeski, Trish Daley, Teresa Green, Tim McCoy, Lauren Newkirk, Melissa Forbes, Jen Zwilling, Andy White, Joseph Catalfano, Brian Katits, Todd Brenneman, Mike Podgorski, Zenzi Ali, Melinda Albert, Brian Hamrick, Joel Schofer, Hera Walker
Jan 01, 0001
Alumni Donate $1 Million for Renovation of Pfahler Hall Ursinus Faculty Members Publish Books / Articles Gender Studies to be Considered Meistersingers Perform Changes in Study Abroad Aim to Ease Students' Minds and Pockets...
Ursinus College Collegeville Pennsylvania newspaper gymnastics wrestling Don Solomon Basketball Swimming Russell Whelan Lynn Knothe Pat Buyse Peter Hinckle Steve Gilbert Football Sigma Chi Delta Ebonics campus security study abroad Women's Studies Meistersingers Diversity J. Robert Lovett Sandra Lovett cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
The Grizzly, October 7, 1996
Jared Rakes, Erin Gambeski, Taneille Smith, Teresa Green, Trish Daley, Sean Campbell, Joanna Doyle, Caroline Kurtz, Todd Brenneman, Cristin Veit, Meghan Gualtieri, Melissa Forbes, Kerrie McKinney, Joel Schofer, Brian Hamrick, Joseph Catalfano, Andrew Ruhf, Tony Palladino, Melinda Albert, Hera Walker
Jan 01, 0001
"The Compassionate Spirit": Berman's Newest Offering A Sugar-Free Halloween Party for Diabetic Children Sigma Chi Delta: Making an Impact Roundtable Discussion: Breakdown of the Oslo Accord and Peace in Israel Olympian...
Ursinus College Collegeville Pennsylvania newspaper Football Soccer Volleyball field hockey Kelly Foster Ryan Costello Matt Finnegan Vonnie Gros Wismer dining hall Roberto Diaz-Luong Chi Rho Psi campus security Michael Matz International Relations Club Sigma Chi Delta George Anthonisen Berman Art Museum cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
The Grizzly, April 16, 1996
Jared Rakes, Brandy McLachlan, Melissa Forbes, Beatrice May, Tarika Tiggett, Alicia Darby, Jason Bechtel, Benjamin Baehr, Sean Sarles, Hera Walker, Joseph Catalfano, Colin Tucker, Jennifer Urban, Melinda Albert, Christy Kenny, Joel Schofer, Charlie Weingroff, Todd Brenneman, John Strassburger
Jan 01, 0001
Greeks Sponsor Easter Egg Hunt for Local Kids New Members Inducted to Phi Beta Kappa Ursinus Physics Professor to Run in Boston Marathon Spring Service Day What is Phi Beta Kappa? Choir Performs "Carmina Burana" The S.U.N....
Ursinus College Collegeville Pennsylvania newspaper softball baseball tennis lacrosse golf track team Gary Knittel Rachelle Pecovsky Debbie Nolan Wismer dining hall Berman Art Museum ProTheatre honor code College Choir S.U.N. summer fellows John Martin service day Phi Beta Kappa Alpha Phi Epsilon cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
Direct Optimal Mapping for 21 cm Cosmology
Abstract
Motivated by the desire for wide-field images with well-defined statistical properties for 21 cm cosmology, we implement an optimal mapping pipeline that computes a...
Z Xu, JN Hewitt, KF Chen, H Kim, JS Dillon, NS Kern, MF Morales, BJ Hazelton, R Byrne, N Fagnoni, EDL Acedo, Z Abdurashidova, T Adams, JE Aguirre, P Alexander, ZS Ali, R Baartman, Y Balfour, AP Beardsley, G Bernardi, TS Billings, JD Bowman, RF Bradley, P Bull, J Burba, S Carey, CL Carilli, C Cheng, DR DeBoer, M Dexter, N Eksteen, J Ely, A Ewall-Wice, R Fritz, SR Furlanetto, K Gale-Sides, B Glendenning, D Gorthi, B Greig, J Grobbelaar, Z Halday, J Hickish, DC Jacobs, A Julius, M Kariseb, J Kerrigan, P Kittiwisit, SA Kohn, M Kolopanis, A Lanman, PL Plante, A Liu, A Loots, YZ Ma, DH Edward MacMahon, L Malan, C Malgas, K Malgas, B Marero, ZE Martinot, A Mesinger, M Molewa, T Mosiane, SG Murray, AR Neben, B Nikolic, H Nuwegeld, AR Parsons, N Patra, S Pieterse, JC Pober, N Razavi-Ghods, J Robnett, K Rosie, P Sims, C Smith, H Swarts, N Thyagarajan, PVV Wyngaarden, PKG Williams, H Zheng
Oct 24, 2022
The Grizzly, November 11, 1996
Jared Rakes, Erin Gambeski, Trish Daley, Tim McCoy, Teresa Green, Melissa Forbes, Carrie Haslbeck, Marshalee Clarke, Todd Brenneman, Mike Podgorski, Caroline Kurtz, Kerrie McKinney, Brent Thompson, Brian Hamrick, Tarik Qasim, Phil Caiazzo, Hera Walker, Joel Schofer
Jan 01, 0001
Ursinus Celebrates Unity Day Professors Nominated Ursinus Explores Pass-Fail Option On Election Day, Ursinus Forged the Atlantic Opinion: What a Friend; Diversity's Downfall Through Apathy; Intellectual Maturity not Just for...
Ursinus College Collegeville Pennsylvania newspaper Football Soccer field hockey Rocco Iacullo summer fellows Racism Diversity Unity Day Nicholas Berry The Gnome grading system cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
The Ursinus Weekly, January 11, 1965
Craig S. Hill, Helen Simmons, John Bradley, Sue Hartenstine, Candace Sprecher, Alexis C. Anderson, George Atkinson, Samuel Walker, Carlton Dingman, Marianne Murphy, Linda Rader
Jan 01, 0001
Football players receive awards at banquet: Tony Motto gets All-ECAC Ursinus to send delegation to Model UN Weekly names Sam Walker sports editor Faculty Forum to present concert, lecture recital: 20th century American music...
Ursinus College Collegeville Pennsylvania newspaper Tony Motto Football Model United Nations Samuel Walker Natalie Hinderas Brownback-Anders pre-medical society Norristown Sacred Heart Hospital Pi Nu Epsilon Nelson M. Williams TW3 Far Corners coffee shop Giefan Lantern J. D. Salinger Ayn Rand Bob Dylan Roland F. Doane Fairfield Alabama Basketball Barry Troster Jack Parker wrestling Soccer fraternities sororities fair housing cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
Improved Constraints on the 21 cm EoR Power Spectrum and the X-Ray Heating of the IGM with HERA Phase I Observations
Abstract
We report the most sensitive upper limits to date on the 21 cm epoch of reionization power spectrum using 94 nights of observing with Phase I of the Hydrogen Epoch of...
THCZ Abdurashidova, T Adams, JE Aguirre, P Alexander, ZS Ali, R Baartman, Y Balfour, R Barkana, AP Beardsley, G Bernardi, TS Billings, JD Bowman, RF Bradley, D Breitman, P Bull, J Burba, S Carey, CL Carilli, C Cheng, S Choudhuri, DR DeBoer, E De Lera Acedo, M Dexter, JS Dillon, J Ely, A Ewall-Wice, N Fagnoni, A Fialkov, R Fritz, SR Furlanetto, K Gale-Sides, H Garsden, B Glendenning, A Gorce, D Gorthi, B Greig, J Grobbelaar, Z Halday, BJ Hazelton, S Heimersheim, JN Hewitt, J Hickish, DC Jacobs, A Julius, NS Kern, J Kerrigan, P Kittiwisit, SA Kohn, M Kolopanis, A Lanman, P La Plante, D Lewis, A Liu, A Loots, YZ Ma, DHE MacMahon, L Malan, K Malgas, C Malgas, M Maree, B Marero, ZE Martinot, L McBride, A Mesinger, J Mirocha, M Molewa, MF Morales, T Mosiane, JB Muñoz, SG Murray, V Nagpal, AR Neben, B Nikolic, CD Nunhokee, H Nuwegeld, AR Parsons, R Pascua, N Patra, S Pieterse, Y Qin, N Razavi-Ghods, J Robnett, K Rosie, MG Santos, P Sims, S Singh, C Smith, H Swarts, J Tan, N Thyagarajan, MJ Wilensky, PKG Williams, P van Wyngaarden, H Zheng
Mar 14, 2023
The Grizzly, February 24, 1997
Jared Rakes, Kristen Calore, Melissa Forbes, Tim McCoy, Teresa Green, Lori Oldrati, Daneen Stamps, Andrew White, Tarika Tiggett, Angie Kurtz, Sean Campbell, Mike Podgorski, Faith Fawcett, Joel Schofer, Tricia Murnane, Chris Daniluk, Hera Walker
Jan 01, 0001
Dr. Gaede Receives $28,500 Grant Organist and Dancer to Perform at Ursinus Dr. Goetz to Lecture Greek Life Discussion at Common Hour Opinion: Things That Make Me Go Hmmm; Letters from Great Britain; A Non-Greek Speaks Back;...
Ursinus College Collegeville Pennsylvania newspaper Basketball Pat Buyse Darren Torsone wrestling Megan Larkin gymnastics Daniel Pipes fraternities sororities Diversity Holly Gaede Marvin Mills Stewart Goetz cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
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