El centenari de Joan Coromines

Comentari de les fites més rellevants dutes a terme dintre l’any 2005 en commemoració del centenari del naixement de Joan Coromines

Rabb Family/Stop & Shop collection, 1912-1989.

The Rabinovitz/Rabb family arrived in Boston from Russia in the 1890s. Around 1914 they founded Economy Grocery Stores, which became Stop & Shop in 1946. In addition to building their grocery company into a successful business, the family is known for its philanthropy and active involvement in the Jewish community. The collection contains materials relating to the Rabb family and to the business operations of Stop & Shop until 1989. The materials in this collection include historical sketches, newspaper clippings, press releases, correspondence, memoranda, minutes, reports, advertisements, certificates, speeches, interviews, films, and photographs.

Càlcul diferencial: anàlisi de corbes

Oferim als estudiants universitaris i als lectors interessats aquesta guia didàctica de la matemàtica universitària com a fruit dels nostres anys de docència de les matemàtiques a la Universitat. El resultat final ha esdevingut una col·lecció de setze petits volums agrupats en els dos mòduls d'Àlgebra Lineal i de Càlcul Infinitesimal. Aquest volum tracta les principals característiques que poden tenir les gràfiques de les funcions. S’estudien en primer lloc les aproximacions polinòmiques d’una corba en un punt amb la coneguda fórmula de Taylor. En la segona part es fa un anàlisi del càlcul de les asímptotes, el creixement i decreixement, els punts extrems, la concavitat i convexitat i també dels punts d’inflexió

Determination of the direct band-gap energy of InAlAs matched to InP by photoluminescence excitation spectroscopy

A series of InxAl1-xAs samples (0.51≪x≪0.55)coherently grown on InP was studied in order to measure the band-gap energy of the lattice matched composition. As the substrate is opaque to the relevant photon energies, a method is developed to calculate the optical absorption coefficient from the photoluminescence excitation spectra. The effect of strain on the band-gap energy has been taken into account. For x=0.532, at 14 K we have obtained Eg0=1549±6 meV

A role for TFIIH in controlling the activity of early RNA polymerase II elongation complexes

TFIIH is a multifunctional RNA polymerase II transcription factor that possesses DNA-dependent ATPase, DNA helicase, and protein kinase activities. Previous studies have established that TFIIH enters the preinitiation complex and fulfills a critical role in initiation by catalyzing ATP-dependent formation of the open complex prior to synthesis of the first phosphodiester bond of nascent transcripts. In this report, we present direct evidence that TFIIH also controls RNA polymerase II activity at a postinitiation stage of transcription, by preventing premature arrest by very early elongation complexes just prior to their transition to stably elongating complexes. Unexpectedly, we observe that TFIIH is capable of entering the transcription cycle not only during assembly of the preinitiation complex but also after initiation and synthesis of as many as four to six phosphodiester bonds. These findings shed new light on the role of TFIIH in initiation and promoter escape and reveal an unanticipated flexibility in the ability of TFIIH to interact with RNA polymerase II transcription intermediates prior to, during, and immediately after initiation.

Southeastern Archaeological Conference

verso: Conference at Macon, Georgia, Nov. 10-11, 1939; First row sitting. James A. Ford, John Alden, Joseph R. Caldwell, Dr. Frederick S. Hulse, John Bennett, ? ?, George I. Quimby Jr., Joffre Coe. Second row standing left to right: John C. Ewers, James B. Griffin, Madeline Kneberg, Marion L. Dunlevy, Charles H. Fairbanks, J. Joe Finkelstein, Karl Schmitt Jr., Charles G. Wilder, Carl F. Miller, Ralph Brown, ? Third row: Harold F. Dahms, Andrew H. Whiteford, Charles Snow, H. Thomas Cain, ? ?, Robert Ritzenthaler, Robert Wauchope, ? ?, ? West

Dig at Starved Rock, IL ca.1948

verso: Sitting or squatting Spaulding, McGregor, Griffin & Orr. Back-Hale Smith in middle. Starved Rock-1948?

Griffin, H. R. Crane and Patricia Dahlstrom in the Radiocarbon Laboratory at the University of Michigan

verso: J. B. Griffin (center), H. R. Crane (left), Patricia Dahlstrom (right); Published in American Antiquity, vol.49, no.3, 1984 for Distinguished Service Award pp.452-54.