Results 151 to 160 of about 118,801 (341)

Engineering Grain Architecture in Epitaxial Aluminum on Miscut Substrates Toward Various Clean Limits and Giant Superconductivity Modulation

open access: yesSmall, EarlyView.
The miscut substrate strategy offers a novel means to engineer aluminum surface roughness, grain architecture, crystallinity, and both normal and superconducting transport properties toward their clean limits by precisely tuning the miscut angle without altering growth conditions.
Thi‐Hien Do   +13 more
wiley   +1 more source

Dismantling the genus Tarenna (Rubiaceae: Pavetteae) in Africa and Madagascar, with the description of three new genera

open access: yesTAXON, EarlyView.
Abstract As presently circumscribed, the Paleotropical genus Tarenna, belonging to the tribe Pavetteae (Rubiaceae), comprises about 200 species and has its centres of diversity in tropical Asia and Africa. Previous molecular phylogenetic studies of the tribe revealed the polyphyly of Tarenna, suggesting that the genus needs to be recircumscribed ...
Petra De Block   +3 more
wiley   +1 more source

Euvichol-plus vaccine campaign coverage during the 2017/2018 cholera outbreak in Lusaka district, Zambia: a cross-sectional descriptive study [PDF]

open access: gold, 2023
Victor Mukonka   +11 more
openalex   +1 more source

A novel circumscription and classification for Neurolaeneae (Asteraceae)

open access: yesTAXON, EarlyView.
Abstract Neurolaeneae (Asteraceae) have a complicated taxonomic history. The tribe was described in 1927, but subsequently disregarded in 1977, and later reinstated as a tribe following a large‐scale phylogenetic analysis of Asteraceae in 2002. To date, this tribe has remained poorly studied and it has never been the subject of a comprehensive ...
Vinicius R. Bueno   +4 more
wiley   +1 more source

Cross‐Border Acquisitions by African Firms: The Effect of Corporate Governance on Ownership Participation

open access: yesThunderbird International Business Review, EarlyView.
ABSTRACT Executive Summary Strategic decisions related to ownership participation in cross‐border acquisitions (CBAs) are among the most fundamental choices for African firms to address the unique internationalization challenges related to their home country context.
Dominik Anderhofstadt   +2 more
wiley   +1 more source

Economic Policy Uncertainty and Structural Transformation in Africa: The Conditional Role of Human Resource Development

open access: yesThunderbird International Business Review, EarlyView.
ABSTRACT The present study has investigated two objectives. First, it examines the unconditional impact of economic policy uncertainty (EPU) on Africa's structural transformation. Second, it explores the conditional role of human resource development in the nexus between economic policy uncertainty (EPU) and structural transformation.
Ekene ThankGod Emeka   +2 more
wiley   +1 more source

Impact of Technological Innovation, Environmental Policy, and Policy Inclusion on Renewable Energy Adoption in Sub‐Sahara Africa

open access: yesThunderbird International Business Review, EarlyView.
ABSTRACT This study investigates the factors influencing renewable energy consumption and renewable electricity in Sub‐Sahara Africa (SSA) using the Lewbel 2SLS approach, panel quantile regression and Driscoll and Kraay estimator. It focuses on a panel dataset covering 41 countries from 1998 to 2020.
Emmanuel K. Manu, Simplice A. Asongu
wiley   +1 more source

Shameful or shameless? Anxieties about mothers and women's autonomy on the Central African Copperbelt, 1956–1964

open access: yesGender &History, EarlyView.
Abstract This article deals with anxiety about and the shaming of modern urban mothers and wives on the mines of the late colonial Central African Copperbelt. Women's various labours and public presence lead to ambivalent depictions, such as the ‘careless mother’, that were part of a broader array of anxieties about women's autonomy on the mines ...
Stephanie Lämmert
wiley   +1 more source

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