578 research outputs found
Mau Maus of the mind: Making Mau Mau and remaking Kenya
African Studies Seminar series. Paper presented 1991?Why was Mau Mau believed to be so evil? The horror story of Britain's empire in the 1950s, it was less of a military threat but thought to be more atrocious than either the Malayan Communists or the Cypriot EOKA. The movement has lived in British memories as a symbol of African savagery, and modern Kenyans are divided by its images, militant nationalism or chauvinist thuggery. This essay explores some of these Mau Maus of the mind
African Studies, Europe and Africa
'Warum sehen die meisten Europäer 'Afrika' als ein hilfloses Opfer und 'den Westen' als einen Rettungsdienst? Inwieweit sind Afrikanisten für diese Missinterpretalion verantwortlich? Wie können wir dafür Sorge tragen, dass EU und G8 auf die Vorschläge der Commision for Africa reagieren? Inwieweit können wir auf unsere Vorgänger zurückblicken, um von ihnen zu lernen, wie man nicht Europa dazu drängt 'etwas zu machen', sondern den Afrikanern eine bessere Chance gibt, sich selbst zu helfen? Inwieweit könnten unsere eigenen Analysen der afrikanischen Gesellschaften, Okonomien und Politiken besser auf die Beantwortung der Fragen ausgerichtet werden, wie afrikanische Kräfte lokale und globale Strukturen von Ungleichheit, Ungerechtigkeit und schlechtes Regieren bekämpfen könnten? Und schlussendlich, wie können wir unseren afrikanischen Akademikerkollegen am besten dabei behilflich sein, dass sie zu Quellen von konstruktiver, interner Kritik werden?' (Autorenreferat)'Why do most Europeans see 'Africa' as feckless victim and 'the West' as a rescue service? How far are Africanists responsible for this misperception? How are you/ we to see to it that the EU and G8 act on the Commission for Africa's generally sound proposals? How far can we look to our predecessors for lessons in how to urge, not that Europe 'does something', but that Africans be allowed a better chance to help themselves? How far might our own analyses of Africans' societies, economies and polities be better adapted to exploring how far African agency might combat local and global structures of inequality, injustice, and misrule? How best, finally, can we help our African academic colleagues to become sources of constructive internal criticism?' (author's abstract)
Investigation of Underground Water Resources of Texas
A report of an investigation of underground water resources of several areas in Texas. Describes modern methods of investigation and shows evolution methods of investigation
Igneous Rocks of the Balcones Fault Region of Texas
Mode of access: Internet
Origin of Analcite in Igneous Rocks of the Terlingua District, Texas
Many of the igneous rocks of the Terlingua district in west Texas contain analcite as an important mineral. The analcite-bearing rocks generally are assemblages of andesine or labradorite, alkali feldspar, augite or aegirite-augite, olivine, iron ores, and analcite. Biotite is present in some types but absent in others. Important types are analcite syenogabbro, analcite trachybasalt porphyry, analcite trachycdolerite, and analcite syenite. Analcite was formed in these rocks through an extended period from late magmatic to definitely post magmatic stages. Reaction between the analcitic liquid and earlier formed minerals resulted in a series of reaction products including analcite aegirite-augite, serpentine, albite, and zeolites
Resolution of the Compact Radio Continuum Sources in Arp220
We present 2 cm and 3.6 cm wavelength very long baseline interferometry
images of the compact radio continuum sources in the nearby ultra-luminous
infrared galaxy Arp220. Based on their radio spectra and variability
properties, we confirm these sources to be a mixture of supernovae (SNe) and
supernova remnants (SNRs). Of the 17 detected sources we resolve 7 at both
wavelengths. The SNe generally only have upper size limits. In contrast all the
SNRs are resolved with diameters {\geq} 0.27 pc. This size limit is consistent
with them having just entered their Sedov phase while embedded in an
interstellar medium (ISM) of density 10^4 cm^{-3} . These objects lie on the
diameter-luminosity correlation for SNRs (and so also on the diameter-surface
brightness relation) and extend these correlations to very small sources. The
data are consistent with the relation L {\propto} D^{-9/4}. Revised
equipartition arguments adjusted to a magnetic field to relativistic particle
energy density ratio of 1% combined with a reasonable synchrotron-emitting
volume filling factor of 10% give estimated magnetic field strengths in the SNR
shells of ~ 15-50 mG. The SNR shell magnetic fields are unlikely to come from
compression of ambient ISM fields and must instead be internally generated. We
set an upper limit of 7 mG for the ISM magnetic field. The estimated energy in
relativistic particles, 2%-20% of the explosion kinetic energy, is consistent
with estimates from models that fit the IR-radio correlation in compact
starburst galaxies.Comment: 16 pages, 5 figure
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