text:
est un jeu vidéo d'action-aventure de type  développé par Feelplus et édité par AQ Interactive au Japon et Rising Star Games en Europe sur Wii, sorti en 2009.

Trame

Univers
Le jeu se place dans l'univers du film Ju-on: The Grudge, où y règnent l'angoisse, la peur, la tension et l'horreur...

Histoire
Erika et sa famille emménagent dans une maison, qui n'est autre que celle du film Ju-on: The Grudge. Ils ne le savent pas encore, mais la malédiction ne tardera pas à les consumer un par un.

Scène d'introduction : Lors de la scène d'introduction du jeu, nous découvrons quelqu'un qui semble entrer dans une maison (la maison du film Ju-on: The Grudge) où y règne un sentiment de malaise, de tension et d'angoisse. Ce quelqu'un sursaute lorsqu'il aperçoit le fantôme d'une femme à la fenêtre intérieure d'une pièce située à l'étage, fenêtre intérieure donnant une vue sur la cage d'escalier.

Ce quelqu'un essaye de s'enfuir de la maison, mais finit par être consumé par la malédiction.

Personnages
Erika : Erika et sa famille (Ken (le frère aîné), Michiko (la mère) et Hiro (le père)), emménagent dans une maison (la maison du film du même nom). Un soir, alors qu'elle promenait Ivy, le chien de la famille, et que celle-ci semble être attirée par quelque chose dans une usine abandonnée, Erika part à sa recherche dans ladite usine abandonnée. Plus tard, elle réapparaîtra dans la maison maudite où elle sera tuée par Kayako.

Michiko : Michiko a eu un malaise cardiaque à la suite du déménagement avec sa famille, elle est à l'hôpital où elle est poursuivie par les fantômes de Kayako et Toshio. Elle meurt d'une chute du haut du toit de l'hôpital (le sort que subit Karen Davis dans The Grudge 2).

Ken : Ken gagne sa vie en tant que livreur. Un soir, il livre un colis qui s'avère être le fantôme de Kayako. Après une course-poursuite dans l'appartement avec Kayako et Toshio, Ken se fait surprendre par Kayako qui le fait mourir de peur.

Hiro : Hiro travaille comme gardien de sécurité dans un magasin de mannequins. Un soir, alors qu'il faisait sa ronde de nuit, une panne d'électricité a lieu dans le bâtiment et Hiro part enquêter. Durant sa quête, il rencontre à plusieurs reprises le fantôme de Kayako qui finit même par le tuer alors qu'il se dirigeait vers la sortie après avoir rétabli l'électricité.

Système de jeu
Le jeu possède quatre niveaux. Dans chaque niveau, le joueur doit récupérer différents artefacts pour pouvoir accéder au cinquième et dernier niveau du jeu. Le personnage ne peut pas attaquer.

Avant de commencer le niveau 1, le jeu vous demande quelques renseignements : votre nom, votre sexe et votre signe astrologique.

À la fin de chaque niveau, une jauge évalue votre niveau de terreur (la Wiimote, dans le jeu, capte vos tremblements ainsi que vos sursauts lors des différents jumpscares dissimulés dans le jeu), suivi d'une note soit négative si vous aviez eu peur (sursauté et tremblé à de nombreuses reprises) tout le long du niveau, neutre si vous aviez moyennement eu peur (sursauté et tremblé 2-3 fois minimum) tout le long du niveau, soit positive si vous n'aviez pas eu peur (aucun sursaut ni tremblement) tout le long du niveau.

Les différents artefacts à récupérer sont :

 Toutes les parties d'un article de journal (Niveau 1 : Usine abandonnée)
 Toutes les parties du dessin de Toshio (Niveau 2 : Hôpital abandonné)
 Toutes les parties du journal de Kayako (Niveau 3 : Immeubles délabrés)
 Toutes les parties de la photo de la famille Saeki (Niveau 4 : La mésaventure d'un vigile)

Le cinquième et dernier niveau (niveau bonus) a pour nom Maison maudite.

Note : Le jeu a fait l'objet d'une classification PEGI 16+.

Développement

Accueil

Titre du jeu dans différents pays

 France : Ju-on: La Malédiction
 Royaume-Uni : Ju-on: The Grudge (A Fright Simulator)
 Allemagne : Ju-on: Der Fluch (Die Furchtsimulation)
 Espagne : Ju-on: La Maldición
 États-Unis : Ju-on: The Grudge (Haunted House Simulator)

Notes et références

Voir aussi

Article connexe
 Ju-on, la série de films originale
Liste des jeux vidéo les plus mal reçus par la critique

Liens externes

Jeu vidéo développé au Japon
Jeu vidéo se déroulant au Japon
Jeu vidéo se déroulant au XXIe siècle
Jeu vidéo sorti en 2009
Fantôme dans le jeu vidéo
Jeu Wii
Survival horror
Jeu vidéo fantastique
Jeu feelplus
The Grudge

redpajama_set_name: RedPajamaWikipedia


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text:
Addiction, City Council, Courts, Crime, criminal justice, homelessness, housing, human services, Mayor Durkan, Mental Health, Morning Fizz, Parks, Poverty	 October 27, 2020 November 2, 2020
Morning Fizz: As City Hall Moves Closer to Agreement on Homeless Outreach, "Seattle Is Dying" Star Claims the Council Wants to Legalize Crime
Screen shot from "Seattle Is Dying"
1. Scott Lindsay, a former mayoral public safety advisor whose report on "prolific offenders" featured prominently in the viral "Seattle Is Dying" video, published a broadside against city council member Lisa Herbold yesterday on the website of a new political nonprofit called Change Washington. In the piece, Lindsay accuses Herbold of sneaking legislation into the 2021 budget that would "create a legal loophole that would open the floodgates to crime in Seattle, effectively nullifying the city's ability to protect persons and property from most misdemeanor crimes" and "negat[ing] the majority of Seattle's criminal code."
Change Washington was incorporated at the end of 2019. Its principals are former state Sen. Rodney Tom, a conservative Democrat from Medina who caucused (and voted) with Republicans; Sally Poliak, a "centrist Republican" political consultant in Seattle; Steve Gordon, a Republican donor from Pacific, WA who runs the anti-tax group "Concerned Taxpayers of Washington State"; and former Zillow executive Greg Schwartz, who left the company last year vowing to focus his energy on "Seattle's chaotic streets and government."
In his post, Lindsay refers to himself as a "dyed-in-the-wool blue Democrat."
Lindsay's claims about legalizing crime come from an extremely broad reading of a draft bill crafted with input from Decriminalize Seattle and King County Equity Now and posted on the website of the King County Department of Public Defense. Lindsay appears unaware that these groups participated in the drafting of the bill, and even claims that they have never expressed any support for its basic concepts. And despite Lindsay's claim that Herbold is using an elaborate "backdoor" strategy to "[keep] the proposed legislation almost entirely hidden from the public," Herbold has not actually proposed any legislation. Council staffers are still working on a draft, one of many bills the council will propose as part of the budget process.
Nor would the bill Lindsay incorrectly identifies as Herbold's actually legalize crime. Instead, the county public defenders' draft proposes several new defenses against prosecution for crimes that result from poverty or an unmanaged mental health or addiction disorder. Among other (welcome) changes, the bill would prevent prosecutors from throwing a person with untreated mental illness in jail because he broke a store window during a psychotic episode, or pressing charges against a hungry person because he stole food. It would not create a get-out-of-jail-free card for anyone who commits a crime and then claims to have—as Lindsay glibly puts it—"depression, anxiety, etc."
Herbold says it's high time the city reconsider its approach to offenses that result from poverty and lack of access to health care and housing. "As we've seen in the massive national and international protests in the wake of the murder of George Floyd, it is past time that we reexamine our systems which often perpetuate homelessness and economic instability," she says. "The City currently spends approximately $20 million a year on incarceration, which is known to significantly increase the risk of housing instability and homelessness." The council will discuss the proposal at its budget meeting Wednesday.
Lindsay's arguments will almost certainly find purchase in right-wing talk radio and on TV chat shows whose ratings depend on keeping audiences in a perpetual state of fear. There will always be a large contingent of people, even in liberal Seattle, who don't believe that crimes that result from poverty or untreated mental illness really exist. To these people, Lindsay's assertion that defendants would only have to "claim drug or alcohol addiction" or fake a mental illness to evade justice will make sense. It's easier to believe in a world where shady defense attorneys argue, as Lindsay predicts they will, that "drugs are a 'basic need" for someone with a substance use disorder" to than to consider the possibility that throwing people in jail for being addicted, mentally ill, or poor doesn't actually work.
PubliCola is supported entirely by generous contributions from readers like you. If you enjoy breaking news, commentary, and deep dives on issues that matter to you, please support this work by donating a few bucks a month to keep this reader-supported site going—and expanding!
If you don't wish to become a monthly contributor, you can always make a one-time donation via PayPal, Venmo (Erica-Barnett-7) or by mailing your contribution to P.O. Box 14328, Seattle, WA 98104. We're truly grateful for your support.
2. After the city council passed legislation establishing a new "outreach and engagement team" to coordinate the city's response to unauthorized encampments, you might think Mayor Jenny Durkan would be thrilled. After all, the team keeps most members of the Navigation Team on the city payroll, while leaving the question of what, exactly, the team will do.
Instead, the mayor responded to the 7-1 vote by reigniting the debate over the council's 2020 budget rebalancing package, which Durkan vetoed (unsuccessfully) after the council voted to eliminate the Navigation Team. In a statement Monday night, Durkan characterized the council's vote as a decision to "restor[e] funding for the Human Services Department to coordinate homelessness outreach" and called the legislation "similar to previously proposed legislation negotiated in August" that would have kept the Navigation Team intact.
That statement is misleading. In addition to the fact that the Navigation Team no longer exists, the new legislation places a number of restrictions on the work of the outreach and engagement team that will replace it, including a prohibition on "direct outreach" by anyone on the team.
The role of the new team (which includes two social workers who were hired specifically to do direct outreach, not sit at desks) is unclear. Lewis, the mayor's office, and key service providers have agreed on a set of guiding principles that include an acknowledgement that encampment removals, or sweeps, "don't reduce the number of people living unsheltered, and exacerbate difficulties of providing/continuing services to people living outside" and a commitment to moving as many as possible into hotel-based shelters and permanent housing.
It's a promising start, but as we've noted before, translating those principles into policy will depend on trust between the council and the mayor's office—trust that has been frayed in the very recent past by battles like the one over the Navigation Team and the mayor's budget veto.
3. On Monday, the Downtown Seattle Association, along with a number of other business and neighborhood groups, sent a letter to the mayor, city council, and a number of city departments demanding that they address "[m]ajor public health and safety concerns" created by encampments and illegal activity in city parks. The groups want the city to create an interdepartmental team to take "near-term actions" to "allow all people to safely use outdoor spaces in Seattle."
The letter gives several examples of parks that are no longer "safe" or "welcoming," including Westlake Park downtown (where "public safety is an issue even during the day"), Cal Anderson Park on Capitol Hill, and the Ballard Commons Park in Ballard. As we reported yesterday, the removal of tents from the Commons merely caused the people living there to set up their tents elsewhere in the neighborhood, and the park itself is again populated by unsheltered people.
Since the issues the letter raises are complex and involve behavioral health, lack of access to adequate housing or shelter, addiction, and poverty, among other factors, the most likely "near-term action"—removing encampments on an ad hoc basis on the grounds that homeless people are "obstructing" other people's use of parks—is unlikely to actually solve the problem. Like Lindsay's law-and-order approach, parks "cleanups" are a short-term fix that delays, but does not substitute for, long-term solutions like housing, health care, and harm reduction.
Filed under: Change Washington, city contracting, Downtown Seattle Association, Lisa Herbold, Scott Lindsay, Seattle Is Dying
Council Staff: Mayor's Proposals Could Promote "Racism Cloaked in the Language of Anti-Racism and Equity"
Guest Editorial: Seattle's Restaurants Can't Wait for COVID Relief
10 thoughts on "Morning Fizz: As City Hall Moves Closer to Agreement on Homeless Outreach, "Seattle Is Dying" Star Claims the Council Wants to Legalize Crime"
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Baffled By Seattle says:
The best case scenario of this would be that someone having a mental health crisis will be sent back out to the street to face a cold street, beatings, rape. Health and case workers will tell you stories about folks with socks full of maggots and toes coming right off. Why the city doesn't propose something like CAHOOTS or COET (caseworkers embedded with police), mental health crisis intervention teams, stabilization and sobering respite centers, psychiatric emergency centers and so on – just basic solutions working well in other cities – is beyond me. As it is, people with misdemeanors are generally released without bail and there are a lot of mechanisms where people can void their misdemeanor warrants in Seattle.
IJ says:
Public safety should not be an issue identified as "Democrat" or "Republican." These monikers are irrelevant to the issue, and your use of them is intended to cast doubt on Scott Lindsay's reporting, as though in a predominantly Democrati-voting city anyone who has agreement with Republicans is suspect. The city charter requires:
"Under authority conferred by the Constitution of the State of Washington, the People of the City of Seattle enact this Charter as the Law of the City for the purpose of protecting and enhancing the health, safety, environment, and general welfare of the people; to enable municipal government to provide services and meet the needs of the people efficiently; to allow fair and equitable participation of all persons in the affairs of the City; to provide for transparency, accountability, and ethics in governance and civil service; to foster fiscal responsibility; to promote prosperity and to meet the broad needs for a healthy, growing City."
These initiatives to decriminalize what is criminal behavior if the perpetrator of the crime is "hungry", "in poverty", in a state of "mental disorder" or a suffering from a "substance use disorder" essentially neuter the criminal code. It is true that if people go to jail they have a much harder time getting a job or housing afterwards: They also have a harder time getting a job in a city that ignores the arson, looting and vandalism that shuts businesses down, often permanently. We have lost thousands of entry level jobs in grocery stores, retail and food service due to the unending siege downtown and in commercial areas. How many Starbucks have to be boarded up before we see that these are actual lost jobs? Taxes?
Further, why is the responsibility of the victims of crime, (who watch their businesses and homes being broken into with no response from the police or jail time for looters) to ensure the opportunity and happiness of the people destroying their property? If you don't want to go to jail don't commit the crime.
help people please :) says:
Hi, I hope that people are not talking past each other. People in crisis and not currently housed need more help. Parks are also scary and unsafe–the recent situation where the cop car got set on fire started as a fight in Denny Park, as an example. We can do both–we can provide resources to people in need, while also making our Parks clean and safe. To not do so harms everyone. This may sound pollyanna but I feel that both "sides" accuse the other of not caring…and that's not productive. Rather than taking sides, let's help people. Let's stop having a power struggle and a turf war (this is directed at the electeds, staff, and the providers). Why the hell are we not doing everything we can to get mental health, addiction and housing to people? COVID has shown that pretty amazing things can be done if people decide to do them.
Ms.V. McCormick says:
Durkin is a Twit to stop the navigation team from the much needed mental health care for the homeless people!
steve willie says:
Does the phrase "mental health care" refer to the medications which suppress their symptoms sufficiently to allow them to care for themselves and not endanger anyone else? I assume you are not referring to counseling the homeless until their schizophrenia disappears, which fails in most cases. If you are referring to meds, then you are referring to the same meds which many homeless schizophrenics refuse to take due to the side-effects. In addition, there is no way to compel anyone to take such meds due to relevant cases decided by progressive judges. Please let us know what kind of magic is supposed to happen when the Navigation Team provides mental health care.
KindlyWizard says:
Seems like the correct response from the council would be to ask if the DSA and the neighborhood groups are ready to be taxed appropriately and allow upzoning and additional housing in their areas.
Everyone has their own problems. But there is no such thing as a problem which makes it right to steal someone else's property, injure them, or murder them. This is not fake fear or invented fear, or pandering for ratings like you say it is. It is a simple fact. Violence must always be a crime. You must be so proud of the role that you have played in all of this. I await the next round of crime stats to check on your contribution to this violence. Congratulations in advance.
Regarding Seattle's parks, you can put "safe" and "welcoming" in quotes all you want. But I guarantee that if you had a family you would feel threatened to take them to Westlake Park and Ballard Commons. Steve Willie.
talker2 says:
I don't fault the Downtown Seattle Association for writing to the City that the parks are unsafe and not welcoming. They are not. I wouldn't want to go to those parks for a picnic or take my children to any parks where campers abound. Too much drug dealing, drug using and other scary and nefarious activity going on. It's much worse than before the pandemic and everyone needs to admit that. Also, how is a new navigation team that has been prohibited from "direct outreach" going to help any homeless?

redpajama_set_name: RedPajamaCommonCrawl


text:
Costa Mesa, CA 92626 USA
Monday-Sunday: 10am-6pm
As home to one of the nation's most popular Broadway series, the Orange County Performing Artscenter has played host to nearly every major Broadway touring production since its opening in 1986. Broadway performances take place in the architecturally stunning Segerstrom Hall, renowned for its impressive acoustical ambience, unique auditorium design and soaring arched granite facade. In addition to this 3,000 seat proscenium theater, the Performing Artscenter campus is home to the 2,000-seat Renée and Henry Segerstrom Concert Hall, 500-seat Samueli Theater, 250 seat Founders Hall and the Lawrence and Kristina Dodge Education Center, which includes a multi-purpose studio performance space and the Boeing Education Lab. Centrally located in the heart of one of Southern California's most vibrant metropolitan areas, the Performing Artscenter is conveniently close to extraordinary amenities, including award-winning restaurants and hotels and the world-famous shopping of South Coast Plaza. An impressive collection of publicly accessible art by such acclaimed artists as Richard Serra, Henry Moore, and Richard Lippold can be viewed on the Performing Artscenter's campus and in the surrounding neighborhood.
--> As home to one of the nation's most popular Broadway series, the Orange County Performing Artscenter has played host to nearly every major Broadway touring production since its opening in 1986. Broadway performances take place in the architecturally stunning Segerstrom Hall, renowned for its impressive acoustical ambience, unique auditorium design and soaring arched granite facade. In addition to this 3,000 seat proscenium theater, the Performing Artscenter campus is home to the 2,000-seat Renée and Henry Segerstrom Concert Hall, 500-seat Samueli Theater, 250 seat Founders Hall and the Lawrence and Kristina Dodge Education Center, which includes a multi-purpose studio performance space and the Boeing Education Lab. Centrally located in the heart of one of Southern California's most vibrant metropolitan areas, the Performing Artscenter is conveniently close to extraordinary amenities, including award-winning restaurants and hotels and the world-famous shopping of South Coast Plaza. An impressive collection of publicly accessible art by such acclaimed artists as Richard Serra, Henry Moore, and Richard Lippold can be viewed on the Performing Artscenter's campus and in the surrounding neighborhood.


text:
Lawrence Park #50 M Washington College
Apr 7 Colorado College W, 15-9
Apr 10 Haverford W, 16-12
Apr 13 #1 Salisbury L, 15-14
Apr 20 #16 Franklin & Marshall L, 18-10
Apr 24 at Swarthmore W, 12-7
Apr 27 at #9 Gettysburg L, 12-8
Man-up goals 0 0
Man-down goals 0 0
Ground balls 111 67
Faceoffs 188-364 106-195
Faceoff percentage 51.6 54.4
Shooting percentage 0.0 0.0
Shots on goal 2 1
Feb 16 Berry W, 21-12 0 0 0 0 0 6 0 0 9-16 0 - 0 -
Feb 23 #11 Washington and Lee L, 14-8 0 0 0 0 0 0 0 0 4-14 0 - 0 -
Mar 2 at Frostburg St. W, 18-9 0 0 0 0 0 1 0 0 1-3 0 - 0 -
Mar 9 Stockton L, 16-11 0 0 0 0 0 13 3 0 18-30 1 0.0 1 100.0
Mar 13 at #15 Christopher Newport L, 11-10 0 0 0 0 0 4 2 0 14-22 0 - 0 -
Mar 16 at St. Mary's Coll. of Md. L, 14-11 0 0 0 0 0 8 0 0 15-28 0 - 0 -
Mar 23 at #10 Dickinson L, 19-14 0 0 0 0 0 11 4 0 18-35 0 - 0 -
Mar 27 #9 Ursinus L, 10-7 0 0 0 0 0 10 1 0 14-20 0 - 0 -
Mar 30 McDaniel W, 18-6 0 0 0 0 0 7 0 1 12-19 1 0.0 1 100.0
Apr 5 at Muhlenberg W, 7-6 0 0 0 0 0 2 0 0 6-16 0 - 0 -
Apr 7 Colorado College W, 15-9 0 0 0 0 0 8 1 0 10-22 0 - 0 -
Apr 10 Haverford W, 16-12 0 1 1 0 0 11 2 0 15-31 0 - 0 -
Apr 13 #1 Salisbury L, 15-14 0 0 0 0 0 4 0 0 11-34 0 - 0 -
Apr 20 #16 Franklin & Marshall L, 18-10 0 0 0 0 0 13 2 0 21-29 1 0.0 0 0.0
Apr 24 at Swarthmore W, 12-7 0 0 0 0 0 7 1 0 12-23 0 - 0 -
Apr 27 at #9 Gettysburg L, 12-8 0 0 0 0 0 6 0 0 8-22 0 - 0 -
2018-19 16 - 0 1 1 0 0 111 16 1 188-364 3 0.0 2 66.7
2019-20 - - - - 0 - - - - - 0-0 - - - -
Total 16 - 0 1 1 0 0 111 16 1 188-364 3 0.0 2 66.7
Conference 8 - 0 1 1 0 0 67 10 1 106-195 2 0.0 1 50.0
Exhibition - - - - 0 - - - - - 0-0 - - - -
Home 9 - 0 1 1 0 0 72 9 1 114-215 3 0.0 2 66.7
Away 7 - 0 0 0 0 0 39 7 0 74-149 0 - 0 -
Neutral - - - - 0 - - - - - 0-0 - - - -
Wins 7 - 0 1 1 0 0 42 4 1 65-130 1 0.0 1 100.0
Losses 9 - 0 0 0 0 0 69 12 0 123-234 2 0.0 1 50.0
February 2 - 0 0 0 0 0 6 0 0 13-30 0 - 0 -
March 7 - 0 0 0 0 0 54 10 1 92-157 2 0.0 2 100.0
April 7 - 0 1 1 0 0 51 6 0 83-177 1 0.0 0 0.0


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text:
Chigwell School Ground, Chigwell
Ground Name: Chigwell School Ground, Chigwell
Region: Essex
Address: Chigwell School Ground, High Road, Chigwell
Home Team: Chigwell School
Use Span: First match on the database was in season 1884
Last match on the database was in season 2021
List of Women's Under-13 County Cup Matches played on this ground
Women's Under-15 County Cup Matches played on this ground
Under-14 County Cup Matches played on this ground
Women's Miscellaneous Matches played on this ground


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José A. Labordeta was a spanish poet, singer-songwriter, politician —senator and congressman.
Own version of Ye learned apothecary from Lyonel Feiniger (1901).
I dropped my FP. Yes, I did. I cleaned it carefully with my ultrasonic device and then it falled to the floor. Since then I felt 'her' a little scratchy, so I repaired it.
My works are under a Creative Commons License.


text:
Fudbalski Klub Crvenka () (Serbian Cyrillic: ФК Црвенка) is a football club based in Crvenka, Serbia.

History
The club was founded in 1919 as CSK - Crvenački Sportski Klub (Crvenka Sports Club). In 1945, it changed its name to FK Spartakus. In 1962, Spartakus merged with another club from Crvenka, FK Jedinstvo, becoming FK Crvenka. Immediately after, in the 1962–63 season, the club won the Second League Vojvodina North, thus qualifying to the Serbian League North. In 1966, they played in the Yugoslav Second League. Three years later, Crvenka won the Second League North and played the play-offs for the Yugoslav First League but failed to qualify. However, they were successful the following year and won the promotion to the 1970–71 Yugoslav First League. although that season they ended up last and were relegated, they managed to win against Red Star Belgrade who were and are the best team in former Yugoslavia. They remained in the Second League until the 1990s. Afterwards they were further relegated to the third league where they played until 2007, and since then are playing in the regional league

External Links
 http://www.srbijasport.net/club/93-crvenka-crvenka/results

External Links
 Club at SC Crvenka.

Football clubs in Serbia
Football clubs in Yugoslavia
Football clubs in Vojvodina
Association football clubs established in 1919
1919 establishments in Serbia

Recent Matches

FK ŽAK Sombor 0-0 FK Crvenka


Healthereum presentation at Saint Elizabeth Medical Center.
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text:
Awesome Texas Jobs Reports
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Austin, Texas is a great place to live and work! And, it has been ranked second in the Kenan Institute of Private Enterprise's 2022's Fastest-growing U.S. Cities report. Researchers used data from each city's county-level employment rates and economic output to produce a report that is timelier than the usual annual reports, and more specific to major cities in the United States.
Texas is growing jobs
In more awesome news, job growth in Texas continues to increase. Texas has broken its record for total jobs for the 12th consecutive month. According to the Texas Workforce Commission, jobs in the state are growing at the fastest rate in the nation, with Austin contributing to the boost. Governor Greg Abbott said, "With 49,500 jobs added last month and another new record for total jobs, the Lone Star State shines as a beacon of opportunity. Despite national economic headwinds, Texas grew jobs at the fasted rate in the nation of the past 12 months."
Unemployment is low
The unemployment rate in Austin remains at 2.8%, under the Texas rate of 3.8% and the national rate of 3.4%. The Austin area gained 14,200 jobs from September to October. According to the governor's office, the portion of working-age Texans who are employed or are looking for work was 63.6%, which is better than the national rate of 6.2%.
What about tech layoffs?
But it's not all sunshine and roses, even in Austin. The global economy is poised for a recession, and employers in Austin are making plans. Meta announced a hiring freeze in May, and recently announced a plan to reduce headcount growth. They also don't plan to move into the downtown high-rise they are leasing in Austin. Other smaller companies in the area are also laying off workers.
There is still a lot of opportunity for workers in Austin. According to economist Mike Patton, investors still view Austin as a good investment. Startups and the entrepreneurial scene remain strong, the economy is diverse, and this makes it resilient. Laid-off workers still have options. The low unemployment rate for Austin means that employers are still struggling with attracting and retaining employees.
Even though some companies are laying off employees, especially in the technology industry, tech companies in Austin are still hiring for critical positions. Austin is in the top ten list of cities where hybrid workers earn $100,000 per year or more. The city boasts a young demographic and Texas is a business-friendly state. Because it is such a desirable place to live, Austin should survive and thrive despite the possible economic storms.
By Justin Dixon|2022-12-01T10:13:01-05:00December 1st, 2022|Austin, Jobs|Comments Off on Awesome Texas Jobs Reports
Tech Talent Still in Demand
Looking Back to Look Forward
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Should You Require Tech Candidates to Have a College Degree?
Austin Is a Great Place to Live and Work!
STEM is the Future
Austin is for Tech


The 11987th positive integer is an odd prime number that follows the number 11986 and comes before 11988. Eleven thousand nine hundred eighty-seven is 5 digits long.
Q: Is 11987 a prime number?
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Q: What is 11987 divided by Pi?
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The spelling of 11987 in different languages.
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The number 11987 represented in different base number systems.
List the frequency of characters that make up the number 11987.
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text:
Small Genealogy Website GEDmatch 'Never Expected' Its Criminal-Catching Use
Dick Eastman	· June 12, 2018 · DNA, Legal Affairs	· 2 Comments
From an article by Sarah Zhang in The Atlantic:
"Ever since investigators revealed that a genealogy website led police to arrest a man as California's notorious Golden State Killer, interest in using genealogy to solve crimes has exploded. DNA from more than 100 crime scenes has been uploaded to the same genealogy site. A second man, linked to a double murder in Washington state, has been arrested. This is likely only the beginning."
""I never expected anything like this," says Curtis Rogers, who started GEDmatch along with John Olson. Rogers, who lives in Florida, had no idea investigators were using GEDmatch to find criminals until he saw the news about the Golden State Killer. "My initial reaction was I was upset," he says. "I didn't like this use of our website."
"To track down the suspect, investigators had created a fake profile on GEDmatch and uploaded DNA from a 1980 crime scene, where it matched a distant relative of the man eventually arrested. The weeks after the news hit were a scramble for Rogers: to update GEDmatch's terms of service, to alert users that law enforcement was searching site, and most of all, to sort out his own complicated feelings on the subject."
You can read the full article at: https://theatln.tc/2l61D0g.
Brian M. Finnegan June 13, 2018 at 7:29 pm
As of today the NBC news in Los Angeles stated that the man arrested as California's notorious Golden State Killer was released. The DNA did not match.
Dick Eastman June 13, 2018 at 7:50 pm
Two different men.
The man exonerated this week is Craig Coley, who spent more than 38 years behind bars in the killings before he was pardoned by Gov. Jerry Brown and released from prison on Thanksgiving Eve last year. He is now 71. DNA evidence has now proven he is innocent.
Craig Coley is NOT the so-called Golden State Killer.
Joseph DeAngelo, who is suspected by officials of being the Golden State Killer, has always been free until he was arrested recently. DeAngelo is believed to be connected to 12 homicides, 57 sexual assaults and dozens of burglaries across the state of California from April 1974 to May 1986. Many of those crimes were committed while the first man, Craig Coley, was in prison.
At 72 Years of Age, Two Women Learn They Were Switched at Birth
Are You Missing Most of the Available Genealogy Information?


normal, according to the network.
mobile average, the highest traffic since the 2008 elections.
a large boost at 12 times the normal traffic.
streams on election day and its aftermath (through noon today, Nov. 3).
interactive maps, social media and video from NBC News as well as MSNBC.


Mahindra and Mahindra, the leading utility vehicle maker in India, has designed an enthralling television commercial sporting its much acclaimed Scorpio model, which is yet not aired. Reportedly, the model has carved a niche in the hearts of domestic buyers, since the time it was launched. The SUV was initially offered in 2002 and since then, it has received periodic changes with a number of changes in the equipment levels. The new advertisement of the auto maker starts with the burglary of a highly valued object from a museum.
As showcased in the TVC, the offender runs away in his sports car for which the hero follows him in the Scorpio. He pursues the burglar on the curves of mountain and easily tows his vehicle back from where it all took place. With this event, the auto company has emphasised on the off roading credentials and optimum power of the Scorpio. Industry experts are of a view that the entire television commercial has been inspired from the style of James Bond, on the grounds of plot and sound affects. The movies and flicks of James Bond have always enticed the Indian audience, who have now developed a special penchant for action stuff. As M&M has designed the advertisement with Bond concept, it highlights the auto maker's target towards country's youths.
Interestingly, such kinds of shots have always delighted Indians of all ages. Experts said that although Scorpio is relatively an old model in the Indian auto market for over 10 years, its blend with action music and plot in the television commercial will surely overwhelm the audience. However, some auto analyst also said that the time for incorporating some tweaks has come for the Scorpio, besides introducing this much hyped TVC. But, it must be noted that the model has been receiving an overwhelming response from the Indian buyers as in February 2013, its sales figures taped over 4,000 units.
The flagship model has been equipped with a 2.2 litre mHawk CRDi engine, which churns out a peak power of 120 bhp, which is quite sufficient in its segment. The main highlight of Scorpio is its six-speed automatic transmission system, apart from the conventional five-speed manual gearbox. Since its inception in 2002, the model ahs emerged as a dominant player in the SUV segment of the Indian auto industry. In order to further cash on its legacy, the auto maker also introduced a pick-up designed on the Scorpio's platform, which in turn came as a lucrative deal for M&M.


text:
\section{Introduction}
\label{sec-int}

Two of the most surprising aspects of high-energy deep inelastic
scattering (DIS) observed at the HERA $ep$ collider have been the
sharp rise of the proton structure function, $F_2$, with decreasing
value of Bjorken $x$ and the abundance of events with a large rapidity
gap in the hadronic final state~\cite{rmp}. The latter are identified
as due to diffraction in the deep inelastic regime.  A contribution to
the diffractive cross section arises from the exclusive production of
vector mesons (VM).

High-energy exclusive VM production in DIS has been postulated to
proceed through two-gluon exchange~\cite{strikfurtHA,brodsky}, once
the scale, usually taken as the virtuality $Q^2$ of the exchanged
photon, is large enough for perturbative Quantum Chromodynamics (pQCD)
to be applicable.  The gluons in the proton, which lie at the origin
of the sharp increase of $F_2$, are also expected to cause the VM
cross section to increase with increasing photon proton centre-of-mass
energy, $W$, with the rate of increase growing with $Q^2$. Moreover,
the effective size of the virtual photon decreases with increasing
$Q^2$, leading to a flatter distribution in $t$, the
four-momentum-transfer squared at the proton vertex.  All these
features, with varying levels of significance, have been observed at
HERA~\cite{review-data1,review-data2,review-data3,review-data4,h1apom,
h1-disrho,z-disrho} in the exclusive production of $\rho^0$, $\omega$,
$\phi$, and $J/\psi$ mesons.

This paper reports on an extensive study of the properties of
exclusive $\rho^0$-meson production,
\begin{equation}
\gamma^* p \to \rho^0 p,  \nonumber
\label{eq:g*prp}
\end{equation}
based on a high statistics data sample collected with the
ZEUS detector during the period 1996-2000, corresponding to an
integrated luminosity of about 120 pb$^{-1}$.

\section{Theoretical background}
\label{sec:theo}

Calculations of the VM production cross section in DIS require
knowledge of the $q\bar{q}$ wave-function of the virtual photon,
specified by QED and which depends on the polarisation of the virtual
photon. For longitudinally polarised photons, $\gamma^*_L$, $q\bar{q}$
pairs of small transverse size dominate~\cite{brodsky}. The opposite
holds for transversely polarised photons, $\gamma^*_T$, where
$q\bar{q}$ configurations with large transverse size dominate. The
favourable feature of exclusive VM production is that, at high $Q^2$,
the longitudinal component of the virtual photon is dominant. The
interaction cross section in this case can be fully calculated in
pQCD~\cite{col-fran-stri}, with two-gluon exchange as the leading
process in the high-energy regime.  For heavy vector mesons, such as
the $J/\psi$ or the $\Upsilon$, perturbative calculations apply even
at $Q^2=0$, as the smallness of the $q\bar{q}$ dipole originating from
the photon is guaranteed by the mass of the quarks.

Irrespective of particular calculations~\cite{reviewVM}, in the
region dominated by perturbative QCD the following features are
predicted:
\begin{itemize}
\item the total $\gamma^* p \rightarrow V p$ cross section,
  $\sigma_{\gamma^* p}$, exhibits a steep rise with $W$, which can be
  parameterised as $\sigma \sim W^{\delta}$, with $\delta$ increasing
  with $Q^2$;
\item the $Q^2$ dependence of the cross-section, which for a longitudinally polarised
  photon is expected to behave as $Q^{-6}$, is moderated to become
  $Q^{-4}$ by the rapid increase of the gluon density with $Q^2$;
\item the distribution of $t$ becomes universal,
    with little or no dependence on $W$ or $Q^2$;
\item breaking of the $s$-channel helicity conservation (SCHC) is expected.
\end{itemize}
In the region where perturbative calculations are applicable,
exclusive vector-meson production could become a complementary source
of information on the gluon content of the proton. At present, the
following theoretical uncertainties have been identified:
\begin{itemize}
\item the calculation of $\sigma({\gamma^* p \rightarrow Vp})$
  involves the generalised parton distributions~\cite{skewed1,skewed2}, which
  are not well tested; in addition~\cite{jhep:103:45}, it involves
  gluon densities outside the range constrained by global QCD analyses
  of parton densities;
\item higher-order corrections have not been fully calculated~\cite{ivanov};
  therefore the overall normalisation is uncertain and the scale at
  which the gluons are probed is not known;
\item the rapid rise of $\sigma_{\gamma^* p}$ with $W$ implies a non-zero real part
    of the scattering amplitude, which is not known;
\item the wave-functions of the vector mesons are not fully known.
\end{itemize}
In spite of all these problems, precise measurements of differential
cross sections separated into longitudinal and transverse
components~\cite{amirim}, should help to resolve the above
theoretical uncertainties.

It is important in these studies to establish a region of phase space
where hard interactions dominate over the non-perturbative soft
component.  If the relative transverse momentum of the $q\bar{q}$ pair
is small, the colour dipole is large and perturbative calculations do
not apply.  In this case the interaction looks similar to
hadron-hadron elastic scattering, described by soft Pomeron exchange
as in Regge phenomenology~\cite{collins}.

The parameters of the soft Pomeron are known from measurements of total
cross sections for hadron-hadron interactions and elastic
proton-proton measurements.  It is usually assumed that the Pomeron
trajectory is linear in $t$:
\begin{equation}
\alpha_{\pom} (t) = \alpha_{\pom}(0) + \aprime\ t \, .
\label{eq:trajectory}
\end{equation}
The parameter $\alpha_{\pom}(0)$ determines the energy behaviour of the
total cross section,
\begin{equation}
\sigma_{\rm tot} \sim (W^2)^{\alpha_{\pom}(0)-1} \nonumber
\end{equation}
and $\aprime$ describes the increase of the slope $b$ of the $t$
distribution with increasing $W$. The value of $\aprime$ is inversely
proportional to the square of the typical transverse momenta
participating in the exchanged trajectory.  A large value of $\aprime$
suggests the presence of low transverse momenta typical of soft
interactions. The accepted values of $\alpha_{\pom}(0)$~\cite{cudell} and $
\aprime$~\cite{landshoff-aprime} are
\begin{eqnarray}
\alpha_{\pom}(0) &=& 1.096 \pm 0.003 \ \, \nonumber \\
\aprime &=& 0.25\ \ {\rm GeV^{-2}} . \nonumber
\end{eqnarray}
The non-universality of $\alpha_{\pom}(0)$ has been established in inclusive
DIS, where the slope of the $\gamma^* p$ total cross
section with $W$ has a pronounced $Q^2$
dependence~\cite{h1lambda}.
The value of $\aprime$ can be determined from exclusive VM production
at HERA via the $W$ dependence of the exponential $b$ slope of the $t$
distribution for fixed values of $W$, where $b$ is expected to behave
as
\begin{equation}
b(W) = b_0 +4 \aprime \ln\frac{W}{W_0}  \, , \nonumber
\end{equation}
where $b_0$ and $W_0$ are free parameters.  The value of $\aprime$ can
also be derived from the $W$ dependence of $d\sigma /dt$ at fixed $t$,
\begin{equation}
\frac{d\sigma}{dt}(W) = F(t) W^{2[2\alpha_{\pom}(t)-2]} \, ,
\label{eq:apom}
\end{equation}
where $F(t)$ is an arbitrary function.  This approach has
the advantage that no assumption needs to be made about the $t$
dependence. The first indications from measurements of $\alpha_{\pom}(t)$ in
exclusive $J/\psi$ photoproduction~\cite{h1apom,zeusapom} are that
$\alpha_{\pom}(0)$ is larger and $\aprime$ is smaller than those of the above
soft Pomeron trajectory.

\section{Experimental set-up}
\label{sec:exp}

The present measurement is based on data taken with the ZEUS detector
during two running periods of the HERA $ep$ collider. During
1996-1997, protons with energy 820 GeV collided with 27.5 GeV
positrons, while during 1998-2000, 920 GeV protons collided with 27.5
GeV electrons or positrons. The sample used for this study corresponds
to an integrated luminosity of 118.9 pb$^{-1}$, consisting of 37.2
pb$^{-1}$ $e^+p$ sample from 1996-1997 and 81.7 pb$^{-1}$ from the
1998-2000 sample (16.7 pb$^{-1}$ $e^-$ and 65.0 pb$^{-1}$
$e^+$)\footnote{From now on, the word ``electron'' will be used as a
generic term for both electrons and positrons.}.

A detailed description of the ZEUS detector can be found
elsewhere~\cite{bluebook,pl:b293:465}. A brief outline of the components
that are most relevant for this analysis is given below.

Charged particles are tracked in the central tracking detector
(CTD)~\cite{nim:a279:290,npps:b32:181,nim:a338:254}. The CTD
consists of 72 cylindrical drift chamber layers, organised in nine
superlayers covering the polar-angle\footnote{The ZEUS coordinate
system is a right-handed Cartesian system, with the $Z$ axis pointing
in the proton direction, referred to as the ``forward direction'', and
the $X$ axis pointing left towards the centre of HERA. The coordinate
origin is at the nominal interaction point. }
region $15^\circ <\theta < 164^\circ$. The CTD operates in a magnetic
field of 1.43 T provided by a thin solenoid. The transverse-momentum
resolution for full-length tracks is $\sigma(p_T)/p_T = 0.0058p_T
\oplus 0.0065 \oplus 0.0014/p_T$, with $p_T$ in GeV.

The high-resolution uranium-scintillator calorimeter
(CAL)~\cite{nim:a309:77,nim:a309:101,nim:a321:356,nim:a336:23}
covers 99.7\% of the total solid angle and consists of three parts:
the forward (FCAL), the barrel (BCAL) and the rear (RCAL)
calorimeters. Each part is subdivided transversely into towers and
longitudinally into one electromagnetic section (EMC) and either one
(in RCAL) or two (in BCAL and FCAL) hadronic sections.  The CAL
energy resolutions, as measured under test-beam conditions, are
$\sigma(E)/E=0.18/\sqrt{E}$ for electrons and
$\sigma(E)/E=0.35/\sqrt{E}$ for hadrons, with $E$ in ${\text{Ge}\eVdist\text{V\/}}$.

The position of the scattered electron was determined by combining
information from the CAL, the small-angle rear tracking
detector~\cite{nim:a401:63} and the hadron-electron
separator~\cite{nim:a277:176}.

In 1998, the forward plug calorimeter (FPC)~\cite{fpc} was
installed in the 20$\times$20 cm$^2$ beam hole of the FCAL with a
small hole of radius 3.15 cm in the centre to accommodate the beam
pipe. The FPC increased the forward calorimeter coverage by about one unit
in pseudorapidity to $\eta \leq 5$.

The leading-proton spectrometer (LPS)~\cite{lps} detected positively
charged particles scattered at small angles and carrying a substantial
fraction, $x_L$, of the incoming proton momentum; these particles
remained in the beam-pipe and their trajectories were measured by a
system of silicon microstrip detectors, located between 23.8 m and
90.0 m from the interaction point. The particle deflections induced by
the magnets of the proton beam-line allowed a momentum analysis of the
scattered proton.

During the 1996-1997 data taking, a proton-remnant tagger (PRT1) was
used to tag events in which the proton dissociates. It consisted of
two layers of scintillation counters perpendicular to the beam at $Z$
= 5.15 m. The two layers were separated by a 2 mm-thick lead absorber.
The pseudorapidity range covered by the PRT1 was $4.3 < \eta < 5.8$.

The luminosity was measured from the rate of the bremsstrahlung process
$ep \rightarrow e\gamma p$. The photon was measured in a
lead-scintillator calorimeter~\cite{lumi1,lumi2,lumi3} placed in the
HERA tunnel at $Z=-107$~m.

\section{Data selection and reconstruction}
\label{sec:data}

The following kinematic variables
are used to describe exclusive $\rho^0$ production and its subsequent decay into a $\pi^+\pi^-$ pair:
\begin{itemize}
\item the four-momenta of the incident electron ($k$), scattered electron
($k^{\prime}$), incident proton ($P$),
scattered proton ($P^{\prime}$) and virtual
photon ($q$);
\item $Q^2=-q^2=-(k-k^{\prime})^2$, the negative squared four-momentum of
the virtual photon;
\item $W^2 = (q+P)^2$, the squared centre-of-mass energy of the
photon-proton system;
\item $y = (P\cdot q)/(P\cdot k)$, the
fraction of the electron energy transferred to the proton
in its rest frame;
\item $M_{\pi\pi}$, the invariant mass of the two decay pions;
\item $t = (P-P^{\prime})^2$,  the squared four-momentum transfer
at the proton vertex;
\item three helicity angles, $\Phi_h$, $\theta_{h}$ and $\phi_{h}$
(see Section~\ref{sec:decay}).
\end{itemize}
The kinematic variables were reconstructed using the so-called
``constrained'' method~\cite{z-disrho,rhodis94}, which uses the
momenta of the decay particles measured in the CTD and the
reconstructed polar and azimuthal angles of the scattered electron.

The online event selection required an electron candidate in the CAL,
along with the detection of at least one and not more than six tracks
in the CTD.

In the offline selection, the following further
requirements were imposed:
\begin{itemize}
\item the presence of a scattered electron, with energy in the
CAL greater than 10 GeV and with an impact point on the face of the
RCAL outside a rectangular area of $26.4\times 16\ {\rm cm^2}$;
\item $E-P_Z > 45$~GeV, where $E-P_Z = \sum_i (E_i -
  p_{Z_i})$ and the summation is over the energies and longitudinal
  momenta of the final-state electron and pions, was imposed. This cut
  excludes events with high energy photons radiated in the initial
  state;
\item the $Z$ coordinate of the interaction vertex
  within $\pm50$ cm of the nominal interaction point;
\item in addition to the scattered electron, exactly
  two oppositely charged tracks, each associated with the
  reconstructed vertex, and each having pseudo\-rap\-i\-di\-ty $\left|
  \eta \right|$ less than 1.75 and transverse momentum greater than
  150~MeV; this excluded regions of low reconstruction efficiency and
  poor momentum resolution in the CTD. These tracks were treated in
  the following analysis as a $\pi^+\pi^-$ pair;
\item events with any energy deposit larger than 300~MeV in the CAL
  and not associated with the pion tracks (so-called `unmatched
  islands') were rejected~\cite{Heiko,Teresa,Arik}.
\end{itemize}

In addition, the following requirements were applied to select
kinematic  regions of high acceptance:
\begin{itemize}
\item the analysis was restricted to the kinematic regions
$2<Q^2<80$~GeV$^2$ and $32 < W < 160$~GeV in the 1996-1997 data and
$2<Q^2<160$~GeV$^2$ and $32 < W < 180$~GeV in the 1998-2000 sample;

\item only events in the $\pi^+\pi^-$ mass interval
  $0.65<M_{\pi\pi}<1.1$~GeV and with $|t|<1$~GeV$^2$ were taken.  The
  mass interval is slightly narrower than that used
  previously~\cite{z-disrho}, in order to reduce the effect of the
  background from non-resonant $\pi^+ \pi^-$ production.  In the
  selected $M_{\pi \pi}$ range, the resonant contribution is $\approx
  100\%$ (see Section~\ref{sec:mass}).
\end{itemize}

The above selection yielded 22,400 events in the 1996-1997
sample and 49,300 events in the 1998-2000 sample, giving a total
of 71,700 events for this analysis.

\section{Monte Carlo simulation}
\label{sec:MC}

The relevant Monte Carlo (MC) generators have been described in detail
previously~\cite{z-disrho}. Here their main features are summarised.

The program {\sc{Zeusvm}}~\cite{ref:muchor} interfaced to
{\sc{Heracles4.4}}~\cite{ref:heracles} was used.  The effective
$Q^2$, $W$ and $t$ dependences of the cross section were parameterised
to reproduce the data~\cite{Arik}.

The decay angular distributions were generated uniformly and the MC
events were then iteratively reweighted using the results of the
present analysis for the 15 combinations of matrix elements
$r^{04}_{ik}$, $r^{\alpha}_{ik}$ (see Section~\ref{sec:decay}).

The contribution of the proton-dissociative process was studied with
the {\sc{Epsoft}}~\cite{epsoft} generator for the 1996-1997 data and
with {\sc{Pythia}}~\cite{phytia} for the 1998-2000 data. The $Q^2$,
$W$ and $t$ dependences were parameterised to reproduce the control
samples in the data.  The decay angular distributions were generated
as in the {\sc{Zeusvm}} sample.

The generated events were processed through the same chain of
selection and reconstruction procedures as the data, thus accounting
for trigger as well as detector acceptance and smearing effects.  For
both MC sets, the number of simulated events after reconstruction was
about a factor of seven greater than the number of reconstructed data
events.

All measured distributions are well described by the MC
simulations. Some examples are shown in Fig.~\ref{fig:control}, for
the $W$, $Q^2$, $t$ variables, and the three helicity angles,
$\theta_h$, $\phi_h$, and $\Phi_h$, and in Fig.~\ref{fig:control-pt}
for the transverse momentum $p_T$ of the pions, for different $Q^2$
bins.

\section{Systematics}
\label{sec:syst}

The systematic uncertainties of the cross section were evaluated by varying
the selection cuts and the MC simulation parameters.  The
following selection cuts were varied:
\begin{itemize}
\item the $E-P_Z$ cut was changed within the appropriate resolution of $\pm3$ GeV;
\item the $p_T$ of the pion tracks (default 0.15 GeV) was increased to 0.2 GeV;
\item the distance of closest approach of the extrapolated track to the matched
 island in the CAL was changed from 30 cm to 20 cm;
\item the $\pi^+\pi^-$-mass window was changed to 0.65--1.2 GeV;
\item the $Z$ vertex cut was varied by $\pm 10$ cm;
\item the rectangular area of the electron impact point on the CAL
 was increased by 0.5 cm in $X$ and $Y$;
\item the energy of an unmatched island was lowered to 0.25 GeV and then
  raised to 0.35 GeV.
\end{itemize}

The dependence of the results on the precision with which the MC
reproduces the performance of the detector and the data was checked by
varying the following inputs within their estimated uncertainty:
\begin{itemize}
\item the reconstructed position of the electron was shifted with
  respect to the MC by $\pm 1\ {\rm mm}$;
\item the electron-position resolution was varied by $\pm 10\%$ in the MC;
\item the $W^\delta$-dependence in the MC was changed by varying
  $\delta$ by $\pm 0.03$;
\item the exponential $t$-distribution in the MC was reweighted by
  changing the nominal slope parameter $b$ by $\pm0.5$ GeV$^{-2}$;
\item the angular distributions in the MC were reweighted assuming SCHC;
\item the $Q^2$-distribution in the MC was reweighted by $(Q^2+M_\rho^2)^k$,
where $k = \pm0.05$.
\end{itemize}

The largest uncertainty of about $\pm$4\% originated from the
variation of the energy of the unmatched islands. All the other checks
resulted on average in a 0.5\% change in the measured cross
sections. All the systematic uncertainties were added in
quadrature. In addition, the cross-section measurements have an
overall normalisation uncertainty of~$\pm$2\% due to the luminosity
measurement.

\section{Proton dissociation}
\label{sec:pdis}

The production of $\rho^0$ mesons may be accompanied by the
proton-dissociation process, $\gamma^* p \to \rho^0 N$. For low masses
$M_N$ of the dissociative system $N$, the hadronisation products may
remain inside the beam-pipe, leaving no signals in the main detector.
The contribution of these events to the exclusive $\rho^0$ cross
section was estimated from MC generators for proton-dissociative
processes.

A class of proton dissociative events for which the final-state
particles leave observed signals in the surrounding detectors was used
to tune the $M_N$ and the $t$ distribution in the MC. In the 1998-2000
running period, these events were selected by requiring a signal in
the FPC detector with energy above 1 GeV.  The comparison of the data
with {\sc{Pythia}} expectations for the energy distribution in the FPC
is shown in Fig.~\ref{fig:pdiss}(a).  The same procedure was repeated
with a sample of $\rho^0$ events for which the FPC energy was less
than 1 GeV and a leading proton was measured in the LPS detector, with
the fraction of the incoming proton momentum $x_L<0.95$. The
comparison between the $x_L$ distribution measured in the data and
that expected from {\sc{Pythia}} is shown in Fig.~\ref{fig:pdiss}(b),
where the elastic peak in the data ($x_L>0.95$) is also observed.
Also shown in Fig.~\ref{fig:pdiss}(c-e) is the fraction of
proton-dissociative events expected in the selected $\rho^0$ sample as
a function of $Q^2$, $W$ and $t$. The fraction is at the level of
$19\%$, independent of $Q^2$ and $W$, but increasing with increasing
$|t|$.  The combined use of the FPC and LPS methods leads to an
estimate of the proton dissociative contribution for $|t| <$ 1 GeV$^2$
of 0.19~$\pm$~0.02(stat.)~$\pm$~0.03(syst.). The systematic uncertainty was
estimated by varying the parameters of the $M_N$ distribution and by
changing the FPC cut.

In the 1996-1997 data-taking period, a similar procedure was applied,
after tuning the {\sc{Epsoft}} MC to reproduce events with hits in the
PRT1 or energy deposits in the FCAL. The proton-dissociative
contribution for $|t| <$ 1 GeV$^2$ was determined to be $0.07 \pm
0.02$ after rejecting events with hits in the PRT1 or energy deposits
in the FCAL. This number is consistent with that determined from the
LPS and FPC because of the different angular coverage of the PRT1.

After subtraction of the proton-dissociative contribution, a good
agreement between the cross sections derived from the two data-taking
periods was found. For all the quoted cross sections integrated over
$t$, the overall normalisation uncertainty due to the subtraction of
the proton-dissociative contributions was estimated to be $\pm$4\% and
was not included in the systematic uncertainty.  The
proton-dissociative contribution was statistically subtracted in each
analysed bin, unless stated otherwise.

\section{Mass distributions}
\label{sec:mass}

The $\pi^+\pi^-$-invariant-mass distribution is presented in
Fig.~\ref{fig:mpipi-all}. A clear enhancement in the $\rho^0$ region
is observed. Background coming from the decay $\phi \to K^+ K^-$,
where the kaons are misidentified as pions, is expected~\cite{Arik} in
the region $M_{\pi\pi} < 0.55$ GeV. That coming from $\omega$ events
in the decay channel $\omega \to
\pi^+ \pi^- \pi^0$, where the $\pi^0$ remains undetected, contributes~\cite{Arik} in the
region $M_{\pi\pi} < 0.65$ GeV. Therefore defining the selected
$\rho^0$ events to be in the window $0.65 < M_{\pi\pi} < 1.1$ GeV
ensures no background from these two channels.

In order to estimate the non-resonant $\pi^+\pi^-$ background under
the $\rho^0$, the S\"oding parameterisation~\cite{Soeding} was
fitted to the data, with results shown in the figure. The resulting
mass and width values are in agreement with those given in the
Particle Data Group~\cite{pdg} compilation. The integrated
non-resonant background is of the order of $1\%$ and is thus
neglected.

The $\pi^+\pi^-$ mass distributions in different regions of $Q^2$ and
$t$ are shown in Fig.~\ref{fig:mpipi-q2} and Fig.~\ref{fig:mpipi-t},
respectively. The shape of the mass distribution changes neither with
$Q^2$ nor with $t$.  The results of the fit to the S\"oding
parameterisation are also shown. Note that the interference term
decreases with $Q^2$ as expected but is independent of $t$, indicating
that the non-exclusive background is negligible.

\section{Angular distributions and decay-matrix density}
\label{sec:decay}

The exclusive electroproduction and decay of $\rho^0$ mesons is
described, at fixed $W$, $Q^2$, $M_{\pi\pi}$ and $t$, by three
helicity angles: $\Phi_h$ is the angle between the $\rho^0$ production
plane and the electron scattering plane in the $\gamma^* p$
centre-of-mass frame; $\theta_{h}$ and $\phi_{h}$ are the polar and
azimuthal angles of the positively charged decay pion in the
$s$-channel helicity frame. In this frame, the spin-quantisation axis
is defined as the direction opposite to the momentum of the
final-state proton in the $\rho^0$ rest frame.  In the $\gamma^* p$
centre-of-mass system, $\phi_{h}$ is the angle between the decay plane
and the $\rho^0$ production plane.  The angular distribution as a
function of these three angles, $W(\cos\theta_{h},\phi_{h},\Phi_{h})$,
is parameterised by the $\rho^0$ spin-density matrix elements,
$\rho_{ik}^{\alpha}$, where $i,k=-1,0,1$ and by convention
$\alpha$=0,1,2,4,5,6 for an unpolarised charged-lepton
beam~\cite{angle}.  The superscript denotes the decomposition of the
spin-density matrix into contributions from the following
photon-polarisation states: unpolarised transverse photons (0);
linearly polarised transverse photons (1,2); longitudinally polarised
photons (4); and from the interference of the longitudinal and
transverse amplitudes (5,6).

The decay angular distribution can be expressed in terms of
combinations, $r^{04}_{ik}$
and $r^{\alpha}_{ik}$, of the density matrix elements
\begin{eqnarray}
r^{04}_{ik} &=& {\rho^0_{ik} \, + \, \epsilon R \rho^{4}_{ik}\over 1 \,
+ \, \epsilon R}, \label{r04}    \nonumber       \\
r^{\alpha}_{ik} &=& \,
\left\{
\begin{array}{ll}
{\displaystyle {\rho^{\alpha}_{ik}\over 1 \, + \, \epsilon R}}, &
{\alpha}=1,2\\*[5mm]
{\displaystyle {\sqrt{R} \; \rho^{\alpha}_{ik}\over 1 \, + \, \epsilon
R}}, & {\alpha}=5,6,
\end{array} \right. \nonumber
\end{eqnarray}

\noindent
where $\epsilon$ is the ratio of the longitudinal- to transverse-photon
fluxes and $R=\sigma_{L}/\sigma_{T}$, with $\sigma_{L}$ and
$\sigma_{T}$ the cross sections for exclusive $\rho^0$ production from
longitudinal and transverse virtual photons, respectively.  In the
kinematic range of this analysis, the value of $\epsilon$ varies
between 0.96 and 1 with an average value of 0.996; hence
$\rho^{0}_{ik}$ and $\rho^{4}_{ik}$ cannot be distinguished.

The Hermitian nature of the spin-density matrix and the requirement of
parity conservation reduces the number of independent parameters to
15~\cite{angle}.  A 15-parameter fit was performed to the data and the
obtained results are listed in Table~\ref{tab:15dme} and shown in
Fig.~\ref{fig:me15} as a function of $Q^2$. The published ZEUS
results~\cite{zeusschc} at lower $Q^2$ values and the expectations of
SCHC, when relevant, are also included. The observed $Q^2$
dependence, expected in some calculations~\cite{kirschner} and
previously reported by H1~\cite{h1schc}, is driven by the $R$
dependence on $Q^2$ under the assumption of helicity conservation and
natural parity exchange. The significant deviation of $r_{00}^5$ from
zero shows that SCHC does not hold~\cite{kirschner} as was observed
previously~\cite{zeusschc,h1schc}.

The angular distribution for the decay of the $\rho^0$ meson,
integrated over $\phi_h$ and $\Phi_h$, reduces to
\begin{equation}\label{eq:angular}
W(\cos{\theta_{h}}) \propto \left[(1-r^{04}_{00})+(3r^{04}_{00}-1)
\cos^2{\theta_{h}}\right].
\end{equation}
The element $r_{00}^{04}$ may be extracted from a one-dimensional fit
to the $\cos{\theta_h}$ distribution.  The $\cos{\theta_h}$
distributions, for different $Q^2$ intervals, are shown in
Fig.~\ref{fig:theta-q2-comb}, together with the results of a
one-dimensional fit of the form~(\ref{eq:angular}).  The data are well
described by the fitted parameter $r^{04}_{00}$ at each value of
$Q^2$.

\section{Cross section}
\label{sec:xsec}

The measured $\gamma^* p$ cross sections are averaged over intervals
listed in the appropriate tables and are quoted at fixed values of
$Q^2$ and $W$. The cross sections are corrected for the mass range
$0.28 < M_{\pi\pi} < 1.5$ GeV and integrated over the full $t$-range,
where applicable.

\subsection{$t$ dependence of  $\sigma(\gamma^* p \to \rho^0 p)$}
\label{sec:dsdt}

The determination of $\sigma(\gamma^* p \to \rho^0 p)$ as a function
of $t$ for $W$ = 90 GeV was performed by averaging over $ 40 < W <
140$ GeV.  The differential cross-section $d\sigma/dt (\gamma^* p \to
\rho^0 p)$ is shown in Fig.~\ref{fig:tdep} and listed in
Table~\ref{tab:dsdt}, for different ranges of $Q^2$. An exponential
form proportional to $e^{-b|t|}$ was fitted to the data in each range
of $Q^2$; the results are shown in Fig.~\ref{fig:b-q2}.  The
exponent $b$, listed in Table~\ref{tab:slope}, decreases as a function
of $Q^2$. After including the previous results at lower
$Q^2$~\cite{photob,z-disrho}, a sharp decrease of $b$ is observed at low
$Q^2$; the value of $b$ then levels off at about 5 GeV$^{-2}$.

A compilation of the value of the slope $b$ for exclusive VM
electroproduction, as a function of $Q^2+M^2$, is shown in
Fig.~\ref{fig:b-q2m2}. Here $M$ is the mass of the corresponding final
state. It also includes the exclusive production of a real photon, the
deeply virtual Compton scattering (DVCS) measurement~\cite{h1dvcs}.
When $b$ is plotted as a function of $Q^2+M^2$, the trend of $b$
decreasing with increasing scale to an asymptotic value of $5\ {\rm
GeV^{-2}}$, seems to be a universal property of exclusive processes,
as expected in perturbative QCD~\cite{strikfurtHA}.

\subsection{$Q^2$ dependence of  $\sigma(\gamma^* p \to \rho^0 p)$}
\label{sec:q2}

The determination of $\sigma(\gamma^* p \to \rho^0 p)$ as a function
of $Q^2$ for $W$ = 90 GeV was performed by averaging over $ 40 < W <
140$ GeV. The results are shown in Fig.~\ref{fig:q2dep} with
corresponding values given in Table~\ref{tab:q2dep}. As expected,
a steep decrease of the cross section with $Q^2$ is observed. The
photoproduction and the low-$Q^2$ ($<$ 1 GeV$^2$) measurements are also
shown in the figure. An attempt to fit the $Q^2$ dependence with a
simple propagator term
\begin{equation}
\sigma(\gamma^* p \to \rho^0 p)\sim (Q^2 + m_\rho^2)^{-n}, \nonumber
\label{eq:prop-q2}
\end{equation}
with the normalisation and $n$ as free parameters, failed to produce
results with an acceptable $\chi^2$. The data appear to favour an $n$
value which increases with $Q^2$.

\subsection{$W$ dependence of  $\sigma(\gamma^* p \to \rho^0 p)$}
\label{sec:W}

The values of the cross section $\sigma(\gamma^* p \to \rho^0 p)$ as a
function of $W$, for fixed values of $Q^2$, are plotted in
Fig.~\ref{fig:wdep} and given in Table~\ref{tab:wdep}. The cross
sections increase with increasing $W$, with the rate of increase growing
with increasing $Q^2$.

In order to quantify the rate of growth and its significance, the $W$
dependence for each $Q^2$ value was fitted to the functional form
\begin{equation}
\label{eq:wdep}
\sigma \sim W^\delta. \nonumber
\end{equation}
The resulting $\delta$ values are presented as a function of $Q^2$ in
Fig.~\ref{fig:delta} and listed in Table~\ref{tab:delta}. For
completeness, the $\delta$ values from lower $Q^2$ are also
included. A clear increase of $\delta$ with $Q^2$ is observed. Such an
increase is expected in pQCD, and reflects the change of the low-$x$
gluon distribution of the proton with $Q^2$.

To facilitate the comparison, the ZEUS cross-section data as a
function of $W$ have been replotted in the $Q^2$ bins used by
H1~\cite{h1-disrho}.  The results are shown in
Fig.~\ref{fig:wdep-z-h1}. The agreement between the two measurements
is reasonable. However, in some $Q^2$ bins the shape of the $W$
dependence is somewhat different.

A compilation of the value of the slope $\delta$ for exclusive VM
electroproduction, as a function of $Q^2+M^2$, is shown in
Fig.~\ref{fig:delta07-pub}. It also includes the DVCS
result~\cite{h1dvcs}. When plotted as a function of $Q^2+M^2$, the value
of $\delta$ and its increase with the scale are similar for
all the exclusive processes, as expected in perturbative
QCD~\cite{strikfurtHA}.

\section{$R = \sigma_L/\sigma_T$ and $r^{04}_{00}$}
\label{sec:R}

The SCHC hypothesis implies that $r_{1-1}^1=-{\rm
Im}\{r_{1-1}^2\}$ and ${\rm Re}\{r_{10}^5\}=-{\rm Im}\{r_{10}^6\}$.
In this case, the ratio $R=\sigma_L/\sigma_T$ can be related to the
$r^{04}_{00}$ matrix element,
\begin{equation}
R = \frac{1}{\epsilon}  \frac{r^{04}_{00}}{1 - r^{04}_{00}},
\label{eq:Rr}
\end{equation}
and thus can be extracted from the $\theta_h$ distribution alone.

If the SCHC requirement is relaxed, then the relation between $R$ and
$r^{04}_{00}$ is modified,
\begin{equation}\label{eq:R_ratio_no_schc}
R = \frac{1}{\epsilon} \frac{r^{04}_{00}-\Delta^2}{1 - (r^{04}_{00}-\Delta^2)}, \nonumber
\end{equation}
\noindent
with
\begin{equation}\label{eq:delta}
\Delta \simeq \frac{r^5_{00}}{\sqrt{2r^{04}_{00}}}. \nonumber
\end{equation}
\noindent
In the kinematic range of the measurements presented in this paper,
the non-zero value of $\Delta$ implies a correction of $\sim$3\% on $R$ up
to the highest $Q^2$ value, where it is $\sim$10\%, and is
neglected.

Under the assumption that Eq.~(\ref{eq:Rr}) is valid and for values of
$\epsilon$ studied in this paper, $<\epsilon>$=0.996, the matrix
element $r^{04}_{00}$ may be interpreted as
\begin{equation}
 r^{04}_{00} = \sigma_L/\sigma_\mathrm{tot},  \nonumber
\end{equation}
where $\sigma_{\rm tot} = \sigma_L + \sigma_T$. When the value of
$r^{04}_{00}$ is close to one, as is the case for this analysis, the
error on $R$ becomes large and highly asymmetrical. It is then
advantageous to study the properties of $r^{04}_{00}$ itself which
carries the same information, rather than $R$.

The $Q^2$ dependence of $r^{04}_{00}$ for $W$ = 90 GeV, averaged over
the range $40 < W <140$ GeV, is shown in Fig.~\ref{fig:r04vsq2} and
listed in Table~\ref{tab:R-q2} together with the corresponding $R$
values.  The figure includes three data points at lower $Q^2$ from
previous studies~\cite{photob,z-disrho}.  An initial steep rise of
$r^{04}_{00}$ with $Q^2$ is observed and above $Q^2\simeq 10$~GeV$^2$,
the rise with $Q^2$ becomes milder.  At $Q^2$ = 40 GeV$^2$, $\sigma_L$
constitutes about 90\% of the total $\gamma^*p$ cross section.

The comparison of the H1 and ZEUS results is presented in
Fig.~\ref{fig:R-Q2-tot+H1} in terms of the ratio $R$. The H1
measurements are at $W$ = 75 GeV and those of ZEUS at $W$ = 90 GeV.
Given the fact that $R$ seems to be independent of $W$ (see
below), both data sets can be directly compared.  The two measurements
are in good agreement.

The dependence of $R$ on $M_{\pi\pi}$ is presented in
Fig.~\ref{fig:R-mpipi} for two $Q^2$ intervals. The value of $R$ falls
rapidly with $M_{\pi\pi}$ above the central $\rho^0$ mass value.
Although a change of $R$ with $M_{\pi\pi}$ was anticipated to be
$\sim$ 10\%~\cite{shabelsky}, the effect seen in the data is much
stronger. The effect remains strong also at higher $Q^2$, contrary to
expectations~\cite{shabelsky}.  Once averaged over the $\rho^0$ mass
region, the main contribution to $R$ comes from the central $\rho^0$
mass value.

The $W$ dependence of $r^{04}_{00}$, for different values of $Q^2$, is
shown in Fig.~\ref{fig:R-W-all} and listed in Table~\ref{tab:R-w}.
Within the measurement uncertainties, $r^{04}_{00}$ is independent of
$W$, for all $Q^2$ values. This implies that the $W$ behaviour of
$\sigma_L$ is the same as that of $\sigma_T$, a result which is
somewhat surprising. The $q\bar{q}$ configurations in the wave
function of $\gamma^*_L$ have typically a small transverse size, while
the configurations contributing to $\gamma^*_T$ may have large
transverse size.  The contribution to $\sigma_T$ of large-size
$q\bar{q}$ configurations, which are more hadron-like, is expected to
lead to a shallower $W$ dependence than in case of $\sigma_L$.  Thus,
the result presented in Fig.~\ref{fig:R-W-all} suggests that the
large-size configurations of the transversely polarised photon are
suppressed.

The above conclusion can also explain the behaviour of $r^{04}_{00}$
as a function of $t$, shown in Fig.~\ref{fig:R-t} and presented in
Table~\ref{tab:R-t} for two $Q^2$ values. Different sizes of
interacting objects imply different $t$ distributions, in particular a
steeper $d\sigma_T/dt$ compared to $d\sigma_L/dt$. This turns out not
to be the case.  In both $Q^2$ ranges, $r^{04}_{00}$ is independent of
$t$, reinforcing the earlier conclusion about the suppression of the
large-size configurations in the transversely polarised photon.

\section{Effective Pomeron trajectory}
\label{sec:alpha}

An effective Pomeron trajectory can be determined from exclusive
$\rho^0$ electroproduction by using Eq.~(\ref{eq:apom}). Since the $W$
dependence of the proton-dissociative contribution was established to
be the same as the exclusive $\rho^0$ sample, no subtraction for
proton-dissociative events was performed.

A study of the $W$ dependence of the differential $d\sigma/dt$ cross
section at fixed $t$ results in values of $\alpha_{\pom}(t)$, listed in
Table~\ref{tab:trajectory} and displayed in Fig.~\ref{fig:trajectory},
for $Q^2$ = 3 GeV$^2$ (upper plot) and 10 GeV$^2$ (lower plot). A
linear fit of the form of Eq.~(\ref{eq:trajectory}), shown in the figures,
yields values of $\alpha_{\pom}(0)$ and $\aprime$ shown in
Fig.~\ref{fig:alpha}, and listed in Table~\ref{tab:alpha}. The value
of $\alpha_{\pom}(0)$ increases slightly with $Q^2$, while the value of
$\aprime$ is $Q^2$ independent, within the measurement
uncertainties. Its value tends to be lower than that of the soft
Pomeron~\cite{dl}.

An alternative way of measuring the slope of the Pomeron trajectory is
to study the $W$ dependence of the $b$ slope, for fixed $Q^2$
values. Figure~\ref{fig:b-w} displays the values of $b$ as a function
of $W$ for two $Q^2$ intervals (see also Table~\ref{tab:slopew}). The
curves are a result of fitting the data to the expression $b = b_0 +
4\aprime \ln (W/W_0)$. The resulting slopes of the trajectory are
$\aprime$~=~$0.15~\pm~0.04~(stat.)~^{+0.04}_{-0.06}~(syst.)$ for
$<Q^2>$ = 3.5 GeV$^2$ and $\aprime$~=~$0.04~\pm~0.06~(stat.)~^{+0.07}_{-0.02}~(syst.)$
for $<Q^2>$ = 11 GeV$^2$. These results are consistent with those
presented in Table~\ref{tab:alpha}.

\section{Comparison to models}
\label{sec:comp}

In this section, predictions from several pQCD-inspired models are
compared to the measurements.

\subsection{The models}
All models are based on the dipole representation of the virtual
photon, in which the photon first fluctuates into a $q\bar{q}$ pair
(the colour dipole), which then interacts with the proton to produce
the $\rho^0$. The ingredients necessary in such calculations are the
virtual-photon wave-function, the dipole-proton cross section, and the
$\rho^0$ wave-function. The photon wave-function is known from QED.
The models differ in the treatment of the dipole-proton cross section
and the assumed $\rho^0$ wave-function.

The models of Frankfurt, Koepf and Strikman (FKS)~\cite{fks1,fks2} and of
Martin, Ryskin and Teubner (MRT)~\cite{mrt1,mrt2} are based on two-gluon
exchange as the dominant mechanism for the dipole-proton interaction.
The gluon distributions are derived from inclusive measurements of the
proton structure function. In the FKS model, a three-dimensional
Gaussian is assumed for the $\rho^0$ wave-function, while MRT use
parton-hadron duality and normalise the calculations to the data. For
the comparison with the present measurements the MRST99~\cite{mrst99}
and CTEQ6.5M~\cite{cteq65m} parameterisations for the gluon density
were used.

Kowalski, Motyka and Watt (KMW)~\cite{kmw} use an improved version of
the saturation model~\cite{gbw1,gbw2}, with an explicit dependence on
the impact parameter and DGLAP~\cite{dglap1,dglap2,dglap3,dglap4}
evolution in $Q^2$, introduced through the unintegrated gluon
distribution~\cite{un-gl}. Forshaw, Sandapen and Shaw (FSS)~\cite{fss}
model the dipole-proton interaction through the exchange of a
soft~\cite{dl} and a hard~\cite{dl-hard} Pomeron, with (Sat) and
without (Nosat) saturation, and use the DGKP and Gaussian $\rho^0$
wave-functions. In the model of Dosch and Ferreira (DF)~\cite{df}, the
dipole cross section is calculated using Wilson loops, making use of
the stochastic vacuum model for the non-perturbative QCD contribution.

While the calculations based on two-gluon exchange are limited to
relatively high-$Q^2$ values (typically $\sim$ 4 GeV$^2$), those
based on modelling the dipole cross section incorporate both the
perturbative and non-perturbative aspects of $\rho^0$ production.

\subsection{Comparison with data}

The different predictions discussed above are compared to the $Q^2$
dependence of the cross section in Fig.~\ref{fig:q2dep-models}.  None
of the models gives a good description of the data over the full
kinematic range of the measurement. The FSS model with the
three-dimensional Gaussian $\rho^0$ wave-function describes the
low-$Q^2$ data very well, while the KMW and DF models describe
the $Q^2>1$ GeV$^2$ region well.

The various predictions are also compared with the $W$ dependence of
the cross section, for different $Q^2$ values, in
Fig.~\ref{fig:wdep-models}.  Here again, none of the models reproduces
the magnitude of the cross section measurements. The closest to the
data, in shape and magnitude, are the MRT model with the CTEQ6.5M
parametrisation of the gluon distribution in the proton and the KMW
model. The KMW model gives a good description of the $Q^2$ dependence
of $\delta$, as shown in Fig.~\ref{fig:delta-models}.

The dependence of $b$ on $Q^2$ is given only in the FKS and the KMW
models as shown in Fig.~\ref{fig:b-models}. The FKS expectations are
somewhat closer to the data.

The expected $Q^2$ dependence of $r^{04}_{00}$ is compared to the
measurements in Fig.~\ref{fig:RQ2-models}. The MRT prediction, using
the CTEQ6.5M gluon density, is the only prediction which describes the data
in the whole $Q^2$ range. While all the models exhibit a mild
dependence of $r^{04}_{00}$ on $W$, consistent with the data as shown
in Figs.~\ref{fig:RW-models2} and~\ref{fig:rvswmod2}, none of them
reproduces correctly the magnitude of $r^{04}_{00}$ in all the $Q^2$
bins.

In summary, none of the models considered above is able to describe
all the features of the data presented in this paper. The high
precision of the measurements can be used to refine models for
exclusive $\rho^0$ electroproduction.

\section{Summary and Conclusions}
\label{sec:end}
Exclusive $\rho^0$ electroproduction has been studied by ZEUS at HERA
in the range $2<Q^2<160~\mathrm{GeV}^2$ and $32<W<180~\mathrm{GeV}$
with a high statistics sample. The $Q^2$ dependence of the $\gamma^* p
\rightarrow \rho^0 p$ cross section is a steeply falling function of $Q^2$.
The cross section rises with $W$ and its logarithmic derivative in $W$
increases with increasing $Q^2$.  The exponential slope of the $t$
distribution decreases with increasing $Q^2$ and levels off at about
$b=5~\mathrm{GeV}^{-2}$. The decay angular distributions of the
$\rho^0$ indicate $s$-channel helicity breaking. The ratio of cross
sections induced by longitudinally and transversely polarised virtual
photons increases with $Q^2$, but is independent of $W$ and of $|t|$,
suggesting suppression of large-size configurations of the
transversely polarised photon. The effective Pomeron trajectory,
averaged over the full $Q^2$ range, has a larger intercept and a
smaller slope than those extracted from soft interactions. All these
features are compatible with expectations of perturbative
QCD. However, none of the available models which have been compared to
the measurements is able to reproduce all the features of the data.

\section*{Acknowledgments}

It is a pleasure to thank the DESY Directorate for their strong
support and encouragement. The remarkable achievements of the HERA
machine group were essential for the successful completion of this
work and are greatly appreciated. The design, construction and
installation of the ZEUS detector has been made possible by the
efforts of many people who are not listed as authors.  We thank
E. Ferreira, J. Forshaw, M. Strikman, T. Teubner and G. Watt, for
providing the results of their calculations.

\vfill\eject

redpajama_set_name: RedPajamaArXiv


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Session time: Tuesday, Nov 15, 2022 @2:30pm – 3pm CST
Session Title: Near-Perfect Scaling on 13 Million Core Cluster Made Easy
Large Language Models are shifting "what's possible" in AI, but distributed training across thousands of traditional accelerators is massively complex and always suffers diminishing returns as more compute is added. Always? No longer. In this talk, Natalia Vassilieva from Cerebras Systems, will present a cluster of 16 Cerebras CS-2 nodes that achieves near-perfect linear scaling across more cores than the world's most powerful supercomputer. And there's more: the programming model is radically simple: the code for 16 nodes is exactly the same as that for a single node. A new era of easy access to extreme-scale AI has just begun.
Mathias Jacquelin
Session time: Tuesday, Nov 15, 2022 @ 4:30 PM CST
Location: C141-143-149
Session Title: Scalable Distributed High-Order Stencil Computations
Stencil computations lie at the heart of many scientific and industrial applications. Stencil algorithms pose several challenges on machines with cache based memory hierarchy, due to low re-use of memory accesses if special care is not taken to optimize them. This work shows that for stencil computation a novel algorithm that leverages a localized communication strategy effectively exploits the second generation Cerebras Wafer-Scale Engine (WSE-2), which has no cache hierarchy. This study focuses on a 25-point stencil finite-difference method for the 3D wave equation, a kernel frequently used in earth modeling as numerical simulation. In essence, the algorithm trades memory accesses for data communication and takes advantage of the fast communication fabric provided by the architecture. The algorithm —historically memory-bound— becomes compute-bound. This allows the implementation to achieve near perfect weak scaling, reaching up to 503 TFLOPs on a single WSE-2, a figure that only full clusters can eventually yield.
Session time: Wed, Nov 16, 2022 @10:30am – 12pm CST
Location: C144-145
Session Title: ACM Gordon Bell Special Prize for HPC-Based COVID-19 Research Awards Ceremony
A team from Argonne National Laboratory, Cerebras and others has been nominated for the Gordon Bell Special Prize for High Performance Computing-Based COVID-19 Research. The team was nominated for their paper: "GenSLMs: Genome-scale language models reveal SARS-CoV-2 evolutionary dynamics".
This award recognizes outstanding research achievement towards the understanding of the COVID-19 pandemic through the use of high-performance computing (HPC). The purpose of the award is to recognize the innovative parallel computing contributions towards the solution of the global crisis. Nominations will be selected based on performance and innovation in their computational methods, in addition to their contributions towards understanding the nature, spread and/or treatment of the disease.
Andy Hock
VP Product Management
Session time: Thursday, Nov 17, 2022 @12:15pm – 1:15pm CST
Session Title: Birds of a Feather: Transformers at Scale for Science
Transformers and other large language models have shown impressive capabilities as 'foundation' models for domains such as natural language processing and computer vision. Requiring huge amounts of scalable compute, self-supervised training on large datasets is leveraged to develop models applicable to a variety of specialized tasks. Recent efforts in areas such as bioinformatics and protein folding indicate the significant potential for Transformer models in domain science applications. In this session, presenters and attendees have the opportunity to discuss new algorithms, software, or hardware for training Transformers on large domain science datasets and novel ideas for applying Transformers in this space.
Session time: Friday, Nov 18, 2022 @8:30am – 10am CST
Session Title: Quantum Computing: A Future for HPC Acceleration?
Quantum computing is a quickly growing field and we expect viable systems to be available relatively soon. However, it's becoming clear that quantum computing systems alone are only of limited use unless integrated with HPC systems to enable both efficient pre- and post-processing and to allow for truly hybrid applications. Many questions remain: which applications will benefit from such acceleration? How widely will quantum acceleration be efficient and cost-effective? How large do quantum systems have to be to make an impact and when will this be the case? What is the impact on the operation in HPC centers? Will quantum acceleration augment or replace other accelerators, e.g., for AI? Or will the quantum computing hype bubble just pop? In this panel, we will discuss these questions with experts from the quantum computing community, with HPC architects, representatives from HPC centers as well as vendors of traditional and emerging accelerators.
Context is Everything: Why Maximum Sequence Length Matters
GPU-Impossible™ sequence lengths on Cerebras systems may enable breakthroughs in Natural Language Understanding, drug discovery and genomics.
Cerebras Sets Record for Largest AI Models Ever Trained on Single Device
Our customers can easily train and reconfigure GPT-3 and GPT-J language models with up to 20 billion parameters on a single CS-2 system
TotalEnergies and Cerebras Create Massively Scalable Stencil Algorithm
TotalEnergies used the Cerebras CS-2 system to turn a problem long accepted to be memory-bound into compute-bound. On a benchmark case inspired by a seismic kernel used to image the Earth, the CS-2 delivered more than 200x performance compared to a NVIDIA® A100 GPU.


Nautical by Nature: Bon Voyage!
It's official: On May 19 I will be setting sail from Rome for my post-graduation Mediterranean CRUISE!
So exciting! Sounds like it will be a great trip. The top is perfect.
How exciting! The T-shirt is so perfect for the occasion.
I love your anchor of the week. My grandmother is from Savannah, so Tybee Island is a favorite place of my family's.
YAY!!! Congrats!! And I LOVE the shirt - it's too cute!!
So happy for you Kate, Congratulations! I love that shirt.
Oh, my! There's nothing like Rome! It's one of my favorite cities!
We will be doing the same thing at the end of May. I will have to get some tips from you when you get back!
I just received that shirt in the mail Fri. in pink! I am excited to get to wear it too. Although, it seems shorter than most of my other J.Crew tees, did you find that to be the case too? Your cruise sounds fabulous, by the way!
That's so awesome! I've always wanted to go on a Medditerranean cruise! Have so much fun!
I did that cruise three years ago..best time of my life. no joke. amazing.
YAY...so exciting and fun! Good for you!
Ohhh congrats, you're going to have so much fun!
I am so jealous, I absolutely love that area. Where all are you going??
Ahh I couldnt be possibly be anymore jealous.
Kate, how exciting! I have a friend who did this cruise years ago and LOVED it and still raves about it to this day!
OMG. I have to get that shirt! Yay for your trip! I'll be in Rome a few short days later!
What a great trip!!! Are you going to come to Spain??? I could met you!!!
How amazing!! I have always wanted to go on a mediterranean cruise. What a perfect shirt to celebrate!
That's so exciting! What a great way to celebrate graduation!
I'm so jealous...I want to come!!!
That sounds like so much fun! My friend is going on a cruise to the Mediterranean over spring break. So jealous.


views from budapest. - the ketchem. : the ketchem.
today afternoon i got to budapest and managed to take a few snapshots! as far as i can say right now, budapest is a beautiful city but it´s a lot different from what i´m used to in austria – but i still have 2 more days here and i definitely want to check out the biggest shopping centre in europe with 400 shops, west end city center or one of the newer ones in the heart of the city!
wünsch dir ganz viel spass!!!
seid ihr mit dem Zug um 19 euro gefahren ?
da ich arbeitsbedingt hier bin, hab ich den ganz normalen zug genommen, der hat aber auch statt 79 nur 39 gekostet!
The first picture is amazing! Have some super nice days in Budapest!
toller blog! & und echt schöne bilder!
I like budapest a lot. hope I return to it soon.
hei, dein blog ist echt schön!


Mike Morin and Amanda Peterson spend most of their days moving mountains, one boulder at a time. Veteran climbers, this husband and wife travel the country as the Access Fund-Jeep Conservation Team.
Founded in 1991, the Access Fund is a national advocacy group that conserves climbing areas and now represents more than 6.8 million climbers around the country. The organization works to keep climbing areas open on private and public land and to conserve the climbing environment in all forms of the sport – rock and ice, mountaineering and bouldering.
Morin and Peterson have covered nearly 21,000 miles in their Jeep Cherokee Trailhawk this year, spearheading dozens of projects, teaching about trail sustainability, and leading hundreds of volunteers on the ground. Their goal: improving or creating environmentally sustainable climbing areas around the country.
Last year, the Access Fund sponsored 180 Adopt a Crag stewardship days, with volunteers working on trail rehabilitation, removing weeds and litter, and restoring vegetation at climbing areas. Its Conservation Team is just one of its hands-on programs.
Morin and Peterson, both 33, love climbing and they know that their perfect climbing day – one with "blinding sunshine, blue skies, birds singing," says Morin – wouldn't be possible without the approach. Managing the route to the climb protects the approach from erosion, vegetation loss and routes that are badly designed or have shifted from the original intended path.
That's why the Conservation Team spends most days on the ground; moving rocks, building steps and bridges, and making the trails to climbing areas safe and sustainable. Throughout the past year, Morin and Peterson have passed on their trail building knowledge to climbing groups and volunteers around the country, and they say each project has also taught them something new.
Morin and Peterson know their way around Pulaskis and rock bars. Morin grew up in Maine and graduated from the University of Maine with a degree in parks, recreation and tourism. He moved to Colorado in 2005 to work as a park ranger and then as a recreation manager. "My job allowed me to combine my work with my passion for climbing," he says. Peterson is a Chapman University graduate with a degree in sociology. She's a Colorado native with a background in environmental education, and she has spent years on trail work crews.
Morin was introduced to climbing in college, and says when he moved to Colorado, climbing became an obsession of his that he shared with Peterson. Married for six years, they say the Access Fund positions allow them to pursue their passions.
They have learned to love their nomadic lifestyle. "Back home" is a pickup truck with a topper parked in Colorado. They love the way each day holds some new experience or new lesson.
Climbing as a sport has exploded in popularity, both indoors and outdoors. So the gym component, where Morin and Peterson meet with many people who are relative newcomers to the sport, is an important part of the Conservation Team's work.
"In the past, people discovered climbing through their love of the outdoors," Morin says. "Now, people are discovering the outdoors through their love of climbing.
Their year has been impressive – to date, they have worked in 18 climbing areas in 13 states. With volunteer groups, they have pulled on their gloves and built more than a mile of new trail and created 14 stone staircases, 32 drainage ditches and ten retaining walls. They've rerouted trails to eliminate 800 feet of social trails. They've visited 13 climbing gyms on their road trip and represented the Access Fund at nine differnt festivals. Along the way they've cleaned up graffiti and picked up trash.
Visit the Access Fund to learn more about their mission and the Conservation Team's next project.