26,512 research outputs found

    W. F. Mitchell

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    Earlier this year, an article was published in the News Bulletin (February 2012) on the background of Captain Boyns Hedley Hocking, a dentist who became one of the first casualties in the bombing of Darwin in 1942. The author, W F Mitchell, has kindly provided a summary of the 70th anniversary activities held in Darwin in February 2012 to commemorate this significant event in the Northern Territory?s historyDate:2012-09News Bulletin no. 413, p. 36 - 37

    Assessing the George W. Bush Presidency: A Tale of Two Terms

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    In one of the first volumes assessing the full two terms of the George W. Bush presidency, Wroe and Herbert have gathered the work of leading American and European scholars. In fifteen succinct and incisive chapters, authorities such as Jim Pfiffner, John Maltese, Graham Wilson and Alan Gitelson offer assessments of the Bush administration's successes and failures. Extensive attention is paid to Bush's foreign policy, including 'The War on Terror' but the focus is broadened to absorb not only the Bush Doctrine and its repercussions, but also his trade and homeland security policies. The president's domestic leadership in economics and social policy is investigated, as are his dealings as president with the other institutions of the U.S. political system. The result is a comprehensive guide to the Bush presidency and its legacy

    Critical vertices in k-connected digraphs

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    It is proved that every non-complete, finite digraph of connectivity number k has a fragment F containing at most k critical vertices. The following result is a direct consequence: every k-connected, finite digraph D of minimum out- and indegree at least 2k+m−1 for positive integers k, m has a subdigraph H of minimum outdegree or minimum indegree at least m−1 such that D−x is k-connected for all x∈V(H). For m=1, this implies immediately the existence of a vertex of indegree or outdegree less than 2k in a k-critical, finite digraph, which was proved in Mader (J Comb Theory (B) 53:260–272, 1991). The final publication is available at Springer via https://doi.org/10.1007/s12188-016-0173-y

    Neue deutsche Ausgrabungen, unter Mitwirkung von W. Andrae, G. Bersu, F. Birkner, A. Brueckner, E. Buschor, F. Fremersdorf, A. von Gerkan, K. Hörmann, H. Junker, G. Karo, J. Keil, A. Kiekebusch, F. Kutsch, H. Lehner, S. Loeschke, A. E. Mader, F. Oelmann, Ch. Rauch, P. Reinecke, M. Schede, Α. Μ. Schneider, C. Schuchhardt, A. Stieren, W. Unverzagt, J. Vonderau, G. Welter, Th. Wiegand, herausgegeben von Gerhart Rodenwaldt, mit einem Vorwort von Georg Schreiber, (Deutschtum und Ausland, Studien zum Auslanddeutschtum und zur Auslandkultur, herausgegeben von Georg Schreiber, 23-24 Heft), 1930

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    Bulard M. Neue deutsche Ausgrabungen, unter Mitwirkung von W. Andrae, G. Bersu, F. Birkner, A. Brueckner, E. Buschor, F. Fremersdorf, A. von Gerkan, K. Hörmann, H. Junker, G. Karo, J. Keil, A. Kiekebusch, F. Kutsch, H. Lehner, S. Loeschke, A. E. Mader, F. Oelmann, Ch. Rauch, P. Reinecke, M. Schede, Α. Μ. Schneider, C. Schuchhardt, A. Stieren, W. Unverzagt, J. Vonderau, G. Welter, Th. Wiegand, herausgegeben von Gerhart Rodenwaldt, mit einem Vorwort von Georg Schreiber, (Deutschtum und Ausland, Studien zum Auslanddeutschtum und zur Auslandkultur, herausgegeben von Georg Schreiber, 23-24 Heft), 1930. In: Revue des Études Anciennes. Tome 33, 1931, n°3. pp. 290-291

    Neue deutsche Ausgrabungen, unter Mitwirkung von W. Andrae, G. Bersu, F. Birkner, A. Brueckner, E. Buschor, F. Fremersdorf, A. von Gerkan, K. Hörmann, H. Junker, G. Karo, J. Keil, A. Kiekebusch, F. Kutsch, H. Lehner, S. Loeschke, A. E. Mader, F. Oelmann, Ch. Rauch, P. Reinecke, M. Schede, Α. Μ. Schneider, C. Schuchhardt, A. Stieren, W. Unverzagt, J. Vonderau, G. Welter, Th. Wiegand, herausgegeben von Gerhart Rodenwaldt, mit einem Vorwort von Georg Schreiber, (Deutschtum und Ausland, Studien zum Auslanddeutschtum und zur Auslandkultur, herausgegeben von Georg Schreiber, 23-24 Heft), 1930

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    Bulard M. Neue deutsche Ausgrabungen, unter Mitwirkung von W. Andrae, G. Bersu, F. Birkner, A. Brueckner, E. Buschor, F. Fremersdorf, A. von Gerkan, K. Hörmann, H. Junker, G. Karo, J. Keil, A. Kiekebusch, F. Kutsch, H. Lehner, S. Loeschke, A. E. Mader, F. Oelmann, Ch. Rauch, P. Reinecke, M. Schede, Α. Μ. Schneider, C. Schuchhardt, A. Stieren, W. Unverzagt, J. Vonderau, G. Welter, Th. Wiegand, herausgegeben von Gerhart Rodenwaldt, mit einem Vorwort von Georg Schreiber, (Deutschtum und Ausland, Studien zum Auslanddeutschtum und zur Auslandkultur, herausgegeben von Georg Schreiber, 23-24 Heft), 1930. In: Revue des Études Anciennes. Tome 33, 1931, n°3. pp. 290-291

    Barbara W. [F...] to Sir (2 October 1962)

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    Signed by Barbara W. [F...]https://egrove.olemiss.edu/mercorr_pro/1499/thumbnail.jp

    Ekstremalne dobowe sumy opadów w Północno-Zachodniej Polsce

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    The paper presents an analysis of the extreme precipitation recorded in north-western Poland between 1951 and 1995. The author of the present paper selected a day with a maximal twenty-fourhour precipitation sum out of each month. The author also selected intervals characterized by specific twenty-four-hour values: 0.1-9.9 mm, 10.0-19.9 mm, 20.0-29.9 mm, 30.0-49.9 mm, 50.0-99.9 mm and ≥100 mm. The author selected frequencies of their occurrence and a monthly average and annual maximums’ sum of precipitation. A concept of an extreme precipitation relates to twentyfour- hour sums 50.0-99.9 mm and ≥100 mm. Moreover the author selected the days with extreme twenty-four-hour sums ≥100 mm and specified the atmospheric circulation types, distinguished by B. Osuchowska-Klein (1975).W pracy przybliżono problematykę ekstremalnych opadów w północno-zachodniej Polsce. Badanie ekstremalnych wartości elementów meteorologicznych to jedno z najważniejszych zagadnień klimatologii. Występowanie tych elementów może spowodować straty ekonomiczne, społeczne czy środowiskowe. W analizie uwzględniono dobowe sumy opadów z 14 stacji, obejmujące lata 1951-1995. Dla obszaru północno-zachodniej Polski za opad ekstremalny przyjęto sumy dobowe 50,0-99,9 mm i ³100 mm, następnie przeprowadzono analizę wybranych dni, w których wystąpiły ekstremalne dobowe sumy opadów ≥100 mm i określono typy cyrkulacji atmosferycznej, wyróżnione przez B. Osuchowską-Klein (1975). Z przeprowadzonych analiz wynika, że na obszarze północno-zachodniej Polski występują opady ekstremalne, które przekraczają granice bezpieczeństwa, powodując zagrożenia społeczno-gospodarcze i środowiskowe. Sumy dobowe 50,0-99,9 mm pojawiały się od maja do października oraz w lutym, natomiast sumy ≥100 mm występowały tylko w letnich miesiącach. W badanym wieloleciu 1951-1995, przy uwzględnieniu 14 stacji z obszaru północno- zachodniej Polski ekstremalne opady 50,0-99,9 mm wystąpiły 102 razy (6%), natomiast opady ≥100 mm – 3 razy: w Łebie (24.07.1988 r.), Koszalinie (18.08.1991 r.) i Toruniu (15.06.1980 r.). Jednakże, przy uwzględnieniu większej liczby stacji (185 stacji dla okresu 1961-1980) sumy ≥100 mm wystąpiły w 14 innych stacjach. Dla tych dni wykonano mapy i określono typ cyrkulacji atmosferycznej. Otrzymano, że ekstremalne opady występowały przy typach cyrkulacji cyklonalnej – Eo (północno-wschodnia i wschodnia), F (południowo- -wschodnia) i CB (północno-zachodnia) oraz antycyklonalnej – E1 (południowo-wschodnia i wschodnia) i C2D (zachodnia). W wybranych 8 dniach opady ekstremalne wystąpiły: w czerwcu (2 razy) – przy typach F i E1; w lipcu (3 razy) – przy typach Eo (2 razy) i C2D i w sierpniu (3 razy) – przy typach Eo, F i CB. W 6 dniach przyczyną opadów ekstremalnych były typy cyklonalne. W ciepłym okresie roku, przy typach cyrkulacji ze składową północną na obszar północno- zachodniej Polski napływa chłodne powietrze, natomiast przy typach południowo-wschodnich i wschodnich napływa bardzo ciepłe powietrze, często o dużej wilgotności względnej. W obu przypadkach adwekcja powietrza może prowadzić do rozwoju konwekcji i w rezultacie powstają opady o ekstremalnej sumie

    W. Lewis Civil War letter

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    This collection contains a letter written in November 1864 by W. Lewis, then stationed at DeValls, Bluff, Ark. The author is believed to be Walter Lewis of Company F of the 20th Iowa Infantry

    Matrix metalloproteinase expression and inhibition after sciatic nerve axotomy

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    Wallerian degeneration is characterized by breakdown of myelin and axons with subsequent macrophage infiltration and removal of the degenerating nerve components. Proteinases of the matrix metalloproteinase (MMP) family seem to play an important role in demyelinating processes, since some of their members have been shown to cleave myelin basic protein. In the present study we investigated the expression of MMP-2 and MMP-9 (gelatinases A and B) during myelin removal after peripheral nerve trauma. After transection of the sciatic nerve an upregulation of MMP-2 and MMP-9 with a first peak 12 h and a second peak 48 h after axotomy was observed by zymography. These peaks correlate with the breakdown of the blood-nerve barrier, the accumulation of granulocytes, and the invasion of macrophages into the damaged nerves, respectively. Furthermore, MMP-2 was found to be upregulated in the contralateral nontransected nerves. Immunocytochemistry for MMP-9 and in situ zymography identified MMP-reactive cells within the distal nerve stump. Chloracetate esterase staining was used to detect granulocytes, which accumulated at the transection site and were colocalized with the in situ zymography signal. Wallerian degeneration of the transected nerve could be delayed either by intraperitoneal injections of hydroxamate (Ro 31-9790), a nonspecific MMP inhibitor, or by local application of an MMP-9-specific antibody. Following these treatment strategies, a decreased number of invading macrophages was seen in the nerves associated with an increased amount of preserved myelin sheaths. These results suggest that the invasion of macrophages into a transected peripheral nerve is accompanied by an increased expression of MMPs, particularly MMP-9. Thus, MMPs may seem to play an important role in the breakdown of the blood-nerve barrier and subsequent cell recruitment from the systemic circulation into the damaged nerve

    Matrix metalloproteinase expression and inhibition after sciatic nerve axotomy

    No full text
    Wallerian degeneration is characterized by breakdown of myelin and axons with subsequent macrophage infiltration and removal of the degenerating nerve components. Proteinases of the matrix metalloproteinase (MMP) family seem to play an important role in demyelinating processes, since some of their members have been shown to cleave myelin basic protein. In the present study we investigated the expression of MMP-2 and MMP-9 (gelatinases A and B) during myelin removal after peripheral nerve trauma. After transection of the sciatic nerve an upregulation of MMP-2 and MMP-9 with a first peak 12 h and a second peak 48 h after axotomy was observed by zymography. These peaks correlate with the breakdown of the blood-nerve barrier, the accumulation of granulocytes, and the invasion of macrophages into the damaged nerves, respectively. Furthermore, MMP-2 was found to be upregulated in the contralateral nontransected nerves. Immunocytochemistry for MMP-9 and in situ zymography identified MMP-reactive cells within the distal nerve stump. Chloracetate esterase staining was used to detect granulocytes, which accumulated at the transection site and were colocalized with the in situ zymography signal. Wallerian degeneration of the transected nerve could be delayed either by intraperitoneal injections of hydroxamate (Ro 31-9790), a nonspecific MMP inhibitor, or by local application of an MMP-9-specific antibody. Following these treatment strategies, a decreased number of invading macrophages was seen in the nerves associated with an increased amount of preserved myelin sheaths. These results suggest that the invasion of macrophages into a transected peripheral nerve is accompanied by an increased expression of MMPs, particularly MMP-9. Thus, MMPs may seem to play an important role in the breakdown of the blood-nerve barrier and subsequent cell recruitment from the systemic circulation into the damaged nerve
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