Search results for " Africa"
showing 10 items of 604 documents
Additions to terrestrial flora of Tunisia: occurrence and taxonomic notes
2020
We document new records of 11 vascular taxa. Some were found in the wild for the first time and, therefore, are new reports to terrestrial flora of Tunisia. One species, Ranunculus acris L., is reported for the first time for North Africa. Parietaria cretica L. is confirmed for North Africa. Details about the distribution and habitats of the 11 species are provided, and comments on their status and taxonomy are included.
The identity of the tropical African
2016
Abstract Polichne mukonja Griffini, 1908 from Cameroon was hitherto known only from the holotype preserved at the Royal Belgian Institute of Natural Sciences, Brussels. This was probably due to the fact that the genus Polichne Stål, 1874 distributed only in Australia and Papua New Guinea. In view of this distribution, the tropical African species was therefore overlooked in the African literature. The recent discovery of two specimens at the Naturhistorisches Museum, Vienna, now provides us with a better understanding of the identity of this taxon, which is related to the African genus Catoptropteryx Karsch, 1890. Polichne mukonja is here transferred to a new genus Griffinipteryx and both t…
Teatri ed anfiteatri dell’Africa proconsolare: l’architettura al servizio del potere. Immagine della città e romanizzazione
2018
A partire dall’età augustea si assiste ad una straordinaria proliferazione di teatri ed anfiteatri nei centri urbani dell’Africa proconsolare. Questi edifici, che comportavano un notevole impegno economico da parte delle comunità locali, rappresentavano un vero e proprio status symbol e connotavano in modo scenografico le città, diventando una sorta di cerniera architettonica ed al contempo ideologica tra la campagna e i centri abitati. Teatri e anfiteatri assurgono ad emblema stesso della romanizzazione di queste terre e la loro costruzione sottolinea spesso il passaggio delle città a municipium o a colonia. Contribuire alla edificazione di questi monumenti, alla loro decorazione o offrire…
Cronache dalla terra dei più felici al mondo
2023
Translation into Italian of Nobel Laureate Wole Soyinka's 2021 novel Chronicles from the Land of the Happiest People on Earth. Soyinka's Chronicles - published 48 years after his latest novel, The Interpreters - offers a fictional fresco of contemporary Nigeria, a country ridden by political and moral corruption. During the latest political campaigns, Dr. Menka finds out that some colleagues at the hospital where he works sell body parts for ritualistic reasons. Afflicted by such an unexpected discovery, he shares the news with his oldest college friend, bon viveur, star engineer, and Yoruba royal Duyole Pitan-Payne, who is about to leave the country to assume a prestigious post at the Unit…
The identity of the tropical African Polichne mukonja Griffini, 1908 (Orthoptera, Tettigoniidae, Phaneropterinae)
2016
Polichne mukonja Griffini, 1908 from Cameroon was hitherto known only from the holotype preserved at the Royal Belgian Institute of Natural Sciences, Brussels. This was probably due to the fact that the genus Polichne Stål, 1874 distributed only in Australia and Papua New Guinea. In view of this distribution, the tropical African species was therefore overlooked in the African literature. The recent discovery of two specimens at the Naturhistorisches Museum, Vienna, now provides us with a better understanding of the identity of this taxon, which is related to the African genus Catoptropteryx Karsch, 1890. Polichne mukonja is here transferred to a new genus Griffinipteryx and both taxa are p…
Dipeptidyl Enoates As Potent Rhodesain Inhibitors That Display a Dual Mode of Action
2015
Dipeptidyl enoates were prepared through a high-yielding two-step synthetic route. They have a dipeptidic structure with a 4-oxoenoate moiety as a warhead with multiple reactive sites. Dipeptidyl enoates were screened against rhodesain and human cathepsins B and L, and were found to be potent and selective inhibitors of rhodesain. Among them (S,E)-ethyl 5-((S)-2-{[(benzyloxy)carbonyl]amino}-3-phenylpropanamido)-7-methyl-4-oxooct-2-enoate (6) was the most potent, with an IC50 value of 16.4 nm and kinact/Ki=1.6×106 m−1 s−1 against rhodesain. These dipeptidyl enoates display a reversible mode of inhibition at very low concentrations and an irreversible mode at higher concentrations. Inhibition…
Consuetudine, Nuove Costituzioni e Tutela dell’Ambiente in Africa
1998
L'articolo analizza il tema della tutela dell'ambiente in Africa sotto il profilo pluralista, con particolare attenzione al fenomeno costituzionale.
Pathways for the amplification of agroecology in African sustainable urban agriculture
2020
A growing awareness that highly intensified agricultural systems have made a substantial worldwide contribution to the worsening of the resilience capacity of natural ecosystems has, over the last twenty years, brought general attention to agroecological management models. This aspect is even more evident in industrial agriculture, which is based on the use of multiple chemical products derived from non-natural synthesis. In more developed countries, a new idea of ecology linked to agricultural production has been increasingly developed and, for this reason, there has been a greater diffusion of differentiated agricultural models taking into consideration the environmental impact of product…
Tradycje urbanizacyjne na obszarze Afryki Subsaharyjskiej
2018
W artykule skoncentrowano się na tradycjach budowy i przestrzennej formie miast w Afryce Subsaharyjskiej w okresie przedkolonialnym oraz na przeobrażeniach miast afrykańskich, które dokonały się w czasach kolonialnych. Przypomniano najstarsze, rozwijające się przed naszą erą cywilizacje miejskie Afryki, jak Aksum i Meroe, a następnie sięgające czasów średniowiecza Wielkie Zimbabwe na południu Afryki oraz Timbuktu i Djenne w Afryce Zachodniej. Omówiono różne układy przestrzenne występujące w miastach na południe od Sahary. W okresie kolonialnym planowanie urbanistyczne podporządkowane było zasadzie segregacji przestrzennej różnych w sensie etnicznym i kulturowym grup ludności. Zwrócono uwagę…
Dyvalocca : un projet pour l'étude des nuages bas de saison sèche sur la façade atlantique de l'Afrique centrale et de leur impact bioclimatique sur …
2020
Low-level clouds are key components of the climate but are not well represented in weather and climate models. Recently it has been shown that an extensive low-level cloud cover develops during the June-September main dry season in western equatorial Africa, from the coastal plains of Gabon and Congo-Brazzaville to the inland plateaus downstream of the low-mountain crests. Such a cloudy main dry season is unique in the moist Tropics and is likely to explain the presence of the densest and evergreen forests of Central Africa as evapotranspiration is low and the quality of light is high. The ANR-DFG funded “DYVALOCCA” project will conduct from 2020 to 2022 a field campaign, raise existing in-…