Structure Function Measurements and Kinematic Reconstruction at HERA

The procedure used for structure function measurements at HERA is briefly described and related to the properties of kinematic reconstruction. The reconstruction methods of the inclusive deep inelastic scattering variables are reviewed and their sensitivity to the energy and angle miscalibrations are discussed in detail. New prescriptions are introduced and related to the standard methods in order to optimize the F_2 structure function measurement over the widest kinematic range, both in the low x, low Q^2 and in the high x, high Q^2 regions. The prospects for the future high Q^2 studies are briefly discussed.Comment: 21 pages, 9 figures. Submitted to N.I.

Organic broilers in floorless pens on pasture

This thesis investigates different aspects of rearing broilers organically in floorless pens on pasture. The birds and pens were moved daily to fresh pasture. The interdisciplinary studies comprise the birds' growth performance and carcass quality, health, behaviour, leg condition and the birds’ effect on pasture. In the final study, on-farm diets were tested in a feeding experiment indoors. The data are based on four experiments carried out during 2000 to 2003. In 2000 and 2002, restricted-fed conventional broilers (ROSS 208) were reared in floorless pens on pasture and in control groups outdoors on straw. In 2001, two genotypes, ROSS 208 and the slow-growing ISA 657 were reared on three ground types, pasture, outdoors on straw and indoors on wood shavings with either an ad libitum or restricted feeding level. In 2003, a feeding experiment with slow-growing broilers fed on-farm diets in a choice feeding system was conducted indoors. Most birds were reared to 12 weeks of age, but ad libitum-fed ROSS birds were reared to 6 weeks. The experimental phase was from ca. 3 weeks to slaughter. The experiments indicate that under the given conditions - access to pasture does not offer sufficient protein and metabolizable energy to allow considerable feed savings in the farm enterprise (Paper I) - moving the floorless pens daily provides favourable conditions to prevent infections with Campylobacter and Eimeria in outdoor broilers (Paper II) - access to pasture as such appears to play no major role for the broilers' physical activity (Paper III) or leg condition (Paper IV) - broiler chickens on pasture can sustain white clover in a mixed grass/white clover pasture (Paper V) - with access to high-quality protein during the first three weeks there is a good potential to produce organic broiler meat with feed produced on-farm in northwestern Europe (Paper VI)

Top Pair Production cross-section at the Tevatron

An overview of latest top quark pair production cross-sections measured at the Tevatron is given. These measurements have been carried out in the dilepton, lepton+jets and all-jets channels with an integrated luminosity of about 1fb-1. The measurements are consistent with NNLO calculations.Comment: Proceedings of the IVIIth Rencontres de Moriond - QCD and High Energy Hadronic Interactions - March 200

Fearless Friday: Emma Murphy

Emma Murphy is truly fearless for her persistence and strength in working to change attitudes and stereotypes towards people with learning disabilities both on campus and in the wider community. This semester, Emma started a new club on campus called Great ADDitudes, which aims to raise awareness about ADD/ADHD and provide support for students who feel alone due to their own learning challenges. At 11, she was diagnosed and has wanted to start a club for students with learning disabilities ever since. [excerpt

Fearless Friday: Friend or Foe

Friend or FOE, a recent addition to our campus offers queer students and their allies an opportunity to connect more socially and establish a mutual understanding of their experiences on campus. The group defines itself as having a less activist approach, rather, their main focus is to create a medium for students who feel that while their sexual orientation is important it is not necessarily something they want to be defined by. [excerpt

Fearless Friday: Tiarra Riggins

As we conclude Yik Yak Awareness Week, we’d like to recognize Tiarra Riggins ’17, the fearless organizer behind this week’s events. ”People don’t realize how words can damage a soul,” says Tiarra. Her efforts this week have been aimed at stopping cyberbullying and changing the culture of Yik Yak to a more positive and uplifting space. The events during this past week ranged from a discussion on the effects of cyberbullying to daily CUB tables, encouraging students to sign a banner against cyberbullying and the negative aspects of Yik Yak. [excerpt

Fearless Friday: Jennifer McCary

As we conclude Diversity Peer Educators Week, we honor Jennifer McCary, the fearless advisor. In addition to her roles with DPE, she is the Assistant Dean of College Life and Director of Student Rights and Responsibilities as well as the Director of the Women’s Center. The Diversity Peer Educators, or DPEs, are a group of students dedicated to facilitating conversations among the student body about various issues of diversity, equity, and inclusion. [excerpt

Fearless Friday: Erin O\u27Connor

For fearless Friday, Surge would like to commend Silent Leader Award recipient, Erin O’Connor. The Silent Leader Award was given this year in memory of Emily Silverstein ’11, a passionate member of the campus community and a fervent advocate for peace at yesterday’s Fall Convocation. [excerpt

Fearless Friday: Jasmine Santana

In this week’s Fearless Friday piece, SURGE would like to spotlight Jasmine Santana ’16! Jasmine is a currently a senior IDS major who focuses on socio-linguistics. In other words, she critically analyzes the use of language through various perspectives, such as from the point of view of Africana Studies or Women, Gender, and Sexuality Studies. A Latina woman from Washington Heights in NYC, Jasmine definitely felt a change in her surroundings once coming to Gettysburg. However, the presence of white-culture did not deter Jasmine from becoming the Fearless Leader we see today. [excerpt

Fearless: Margaret Jennifer Johnson

Fearless Margaret “Jennifer” Johnson arrived on campus in the fall of 2011, she wasted no time in looking for opportunities to get involved. During her first year, she joined the Gettysburg Gospel Choir as treasurer, rebuilt houses damaged by Hurricane Katrina during an Immersion trip with CPS, was a member of the BSU, and a Senate Rep for the NAACP. Her list of involvement in clubs and organizations continued to grow throughout her years on campus, however, she felt like a part of her was still absent on campus. [excerpt