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Response of local maize varieties and commercial hybrids to natural infestation by Busseola fusca (Fuller) (Lepidoptera: Noctuidae) in Lesotho
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.A. Ebenebe --- Department of Zoology and Entomology, Faculty of Natural Sciences, Republic of South Africa J. van den Berg --- , Republic of South Africa T.C. van der Linde --- Department of Zoology and Entomology, Faculty of Natural Sciences, Republic of South AfricaThe response of farmers' varieties and maize hybrids commonly grown in Lesotho was evaluated in field trials under natural infestations of Busseola fusca (Fuller). Plant response of varieties and hybrids was evaluated in relation to a susceptible and resistant maize... -
The good shepherd: remedying the fencing syndrome
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Monique Salomon --- Farmer Support Group, South Africa Clement Cupido --- Agricultural Research Council–Animal Production Institute, c/o Department of Biodiversity and Conservation Biology, South Africa Igshaan Samuels --- Agricultural Research Council–Animal Production Institute, c/o Department of Biodiversity and Conservation Biology, South AfricaIn this paper the use of fenced grazing camps to manage the rangeland commons is challenged. A historical perspective is presented on fencing and rotational grazing in South Africa. Two case studies in KwaZulu-Natal and the Northern Cape illustrate the... -
Technical and institutional capacity in local organisations to manage decentralised forest resources in Uganda
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: N. Turyahabwe C.J. Geldenhuys S. Watts A.Y. BananaUganda is one of the sub-Saharan African countries that has devolved the management of forest resources. Meaningful devolution, however, requires that local governments and other community organizations should have capacity in terms of adequate and competent human resources, finance, information,... -
The spectral theory of commutative C*-algebras: The constructive spectrum
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bernhard Banaschewski ChristopherJ. MulveyThis paper introduces the notion of a commutative C*-algebra in a Grothendieck topos E and subsequently that of the spectrum MFn A of A, presented as the locale determined by an appropriate propositional theory in the topos E which describes... -
The spectral theory of commutative C*-algebras: The constructive Gelfand-Mazur theorem
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bernhard Banaschewski ChristopherJ. MulveyIt is shown, for a commutative C*-algebra in any Grothendieck topos E, that the locale MFn A of multiplicative linear functionals on A is isomorphic to the locale Max A of maximal ideals of A, extending the classical result that... -
Derivations on Functional (Local Banach) Algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. KhosraviFirstly we obtain some of the general properties of functional (local Banach) algebras and secondly we generalize some of the known results of derivations on Banach algebras to such algebras. -
On a Domain of Invertibility of a Differentiable Mapping
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Piotr FijalkowskiThis paper deals with a domain and its range of invertibility of a differentiable mapping at a point with an invertible derivative. Assuming the C 2-class of a mapping T defined in a neighbourhood of a point x 0 in... -
Fully Trend Preserving Operators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: C.H. RohwerThe concept of fully trend preserving (ftp) operators on sequences was introduced to prove variation preservation on the outputs of LULU-separators. It turns out that this property is central in further analysis of compositions of LULU-smoothers, and other smoothers. Several... -
Irreducibility in Pointfree Topology
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Themba DubeIrreducible spaces have been studied in topology by several authors. A. H. Stone introduced semi-irreducibility as a way of studying hereditarily compact spaces. In this paper we investigate these concepts in the context of frames. -
The Galois Approach to Uniform Structures
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Maria João Ferreira Jorge PicadoEntourages in uniform spaces, being binary relations, may be easily described by polarities (i.e. Galois connections between power sets) and axialities (i.e. residuated pairs between power sets). Here we consider this in the pointfree context of the category of frames,... -
Quasi-inverses and approximation with min-max operators in the ℓ1-norm
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: C.H. RohwerThe semi-group of min-max operators, as used for nonlinear smoothing or multiresolution analysis, has no nontrivial inverses. Having chosen a smoother for a specific purpose, the secondary approximation problem of minimising damage was considered by showing that quasi-inverses exist. This... -
TOPOLOGICAL DECOMPOSITIONS OF THE DUALS OF LOCALLY CONVEX VECTOR SEQUENCE SPACES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: JanH Fourie --- Depart. of Mathematics Potchefstroom, South Africa WilliamH Ruckle --- Depart. of Mathematical Sciences, United States of AmericaLet Λ be a scalar sequence space which is endowed with a normal locally convex topology. For a separated locally convex space E we denote by Λ(E) the vector space of all sequences g in E for which (>g(i),a<) ε... -
SPREAD UNIFORMITIES AND UNIFORM SPREADS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hlengani Slweya --- Department of Mathematics, University of the North, Sovenga, South Africa,We discuss a point-free analog of the topological fact that every uniformly continuous function on a dense subspace of a uniform space into a complete uniform space has a unique uniformly continuous extension. It is shown that a uniform frame... -
Pointfree Aspects of the Td Axiom of Classical Topology
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bernhard Banaschewski --- Department of Mathematics and Statistics, Canada Ale[sbreve] Pultr --- Department of Applied Mathematics and ITI, MFF, Czech RepublicAbstraction from the condition defining To-spaces leads to the following notion in an arbitrary frame L: a filter F in L is called slicing if it is prime and there exist a, b e L such that a £ F,... -
Locally convex cones and the Schröder-Simpson theorem
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Klaus Keimel --- Fachbereich Mathematik, GermanyThis paper paper has two goals: Firstly, to present the conceptual proof of the Schröder-Simpson theorem. The Schröder-Simpson theorem is stated in terms of domain theory and uses directed complete partially ordered cones and Scott-continuous maps. These structures are used... -
Religion, authority and their interplay in the shaping of antiretroviraltreatment in western Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: AlexanderMJ Leusenkamp --- , The NetherlandsThe article explores how religious actors have increasingly shaped the nature of antiretroviral treatment (ART) services in Kabarole district, western Uganda. As have the regular health services, Christian donors, non-governmental organisations (NGOs), and churches in the district have also stepped... -
Indigenous names of fish and fishing gear in the Cuvelai, Kavango and Caprivi regions of Namibia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DanielO Okeyo George Mubita ThomasK Harris DagberthE Sahombu Josephat Namundjanga Samson Mulonga S KapirikaThis study discusses the local names of the inland fresh water fish species of the Cuvelai, Kavango and Caprivi regions of Namibia, in five indigenous languages: OshiWambo/OshiNdonga, RuKwangali, RuGciriku, SiLosi and SiSubia. It also discusses local names of the indigenous... -
Diversity and coverage of seagrass ecosystems in south-west Madagascar
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JMO Hantanirina --- , UK S Benbow --- , UKSeagrass meadows provide important nursery and feeding grounds for many commercially valuable fish species. Here, we address the paucity of published information on the status of seagrasses in Madagascar by documenting the results from ecological surveys of 11 seagrass beds... -
Lessons learnt from experimental temporary octopus fishing closures in south-west Madagascar: benefits of concurrent closures
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Benbow --- Blue Ventures Conservation, Level 2 Annex, UK F Humber --- Blue Ventures Conservation, Level 2 Annex, UK TA Oliver --- Blue Ventures Conservation, Level 2 Annex, UK KLL Oleson --- Blue Ventures Conservation, Level 2 Annex, UK D Raberinary --- Blue Ventures Conservation, Level 2 Annex, UK M Nadon --- Blue Ventures Conservation, Level 2 Annex, UK H Ratsimbazafy --- Blue Ventures Conservation, Level 2 Annex, UK A Harris --- Blue Ventures Conservation, Level 2 Annex, UKThis paper presents evidence of the fisheries effect of experimental temporary fishing closures for Octopus cyanea in the then-emergent Velondriake Locally Managed Marine Area (LMMA) in south-west Madagascar during 2004–2006. We present an analysis of the O. cyanea catch data... -
Knowledge Sharing and Innovation as it affects the Local Content in the Oil and Gas Industry in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: O. O. Jegede --- , M. O. Ilori --- , J. A. Sonibare --- Department of Chemical Engineering, Nigeria B. A. Oluwale --- , W. O. Siyanbola --- ,This study assessed the factors hampering innovation and knowledge sharing in indigenous oil and gas firms in Nigeria. The aim was to provide information that will increase knowledge sharing among the indigenous in the sector and create added value, which... -
Farmers' tree planting and access to germplasm in the southern highlands of Tanzania
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Anders Aalbaek --- Department of Economics and Natural Resources,This article examines the effects ofinsufficient availability of planting material on farmers' tree planting in the southern highlands ofTanzania. Patterns in scale of farmers' tree planting, species preferences, and experienced availability of planting material are investigated and compared with past... -
Migration, access to ART, and survivalist livelihood strategies in Johannesburg
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joanna VeareySince the end of apartheid, patterns of migration into South Africa have shifted, and South Africa has become a destination for people from across the African continent and beyond — a small but important number of whom are refugees and... -
Development of fishery indicators for local management initiatives — a case study for Plettenberg Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MKS Smith CM King WHH Sauer PD CowleyIn attempts to achieve sustainability, ecosystem-based approaches to fisheries management are becoming increasingly applicable. Indicators to assess the success of management measures are an important component of this approach. Data from a recreational linefishery are used to develop and propose... -
Phenotypic plasticity and local adaptation in two extreme populations of Acacia karroo
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: G Bayonne Mboumba D WardPhenotypic plasticity is the effect of growth variability in response to different environmental conditions. Adaptive phenotypic plasticity is more specific; it is the ability of a single genotype to produce an array of phenotypes depending on the environmental extent. We... -
A conceptual tool for improving rangeland management decision-making at grassroots level: the local-level monitoring approach
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: K Kellner --- School of Environmental Sciences and Development, South Africa AS Moussa --- School of Environmental Sciences and Development, South AfricaFor many years, rangeland monitoring has mainly been the field of scientists, academics and extension workers trying to fine-tune methods to assess the condition of rangelands. Frameworks and monitoring systems developed with their associated indicators are often complex and inaccessible... -
The First Group (co)homology of a Group G with Coefficients in Some G–Modules
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: LucíliaD. Borsari DacibergL. GonçalvesLet G be a group. We give some formulas for the first group homology and cohomology of a group G with coefficients in an arbitrary G–module Ž. More explicit calculations are done in the special cases of free groups, abelian... -
Stability on Local Unconditional Structure and the Gordon-Lewis Property in Tensor Products
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: D. Puglisi G. SaluzzoWe show that if X is an L 1-space (resp. L ∞-space) and Y a Banach space, then X ⊗∧ Y (resp. X ⊗∨ Y) has the local unconditional structure (l.u.st.) property (or GL-property) if Y does. -
Functorial relationships between lattice-valued topology and topological systems
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: J.T. Denniston S.E. RodabaughThis paper investigates functorial relationships between lattice-valued topology (arising from fuzzy sets and fuzzy logic) and topological systems (arising from topological and localic aspects of domains and finite observational logic in computer science). Two such relationships are embeddings from TopSys... -
Into isomorphisms in tensor products of Banach spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Eve Oja Vaiki RandalaWe establish quantitative extensions of two Grothendieck's results on into isomorphisms in projective tensor products. Among others, we prove the following. Let Y be a closed subspace of a Banach space Z and let j : Y → Z denote... -
Lipid rescue: the use of lipid emulsions to treat local anaesthetic toxicity
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: CJ Kruger --- Department of Anaesthesiology and Critical Care, South Africa PC Marwick --- Department of Anaesthesiology and Critical Care, South Africa AI Levin --- Department of Anaesthesiology and Critical Care, South AfricaDespite increasing safety of regional anaesthesia, the growth in the popularity therof implies that local anaesthetic toxicity will occur occasionally. Local anaesthetic cardiotoxicity, even when using “safer” modern local anaesthetics, is notoriously resistant to standard resuscitation. The aim of this... -
Transient aphasia following spinal anaesthesia in an orthopaedic patient
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: B Tripat --- Department of Anaesthesia and Critical Care, India G Ruchi --- Department of Anaesthesia and Critical Care, India T Sonika --- Department of Anaesthesia and Critical Care, IndiaA 50-year-old male [American Society of Anesthesiologists (ASA) grade II] was scheduled for lower limb orthopaedic surgery. The subarachnoid space was localised with difficulty at L3/4 interspace and 3 ml of hyperbaric bupivacaine was given. Within a few minutes, the... -
Anaesthetic safety of the Macintosh® oral laryngeal spray device
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: RJ Ing --- School of Medicine, University of Colorado Associate Director of Clinical Research, USA DM Craig --- Department of Surgery, USA A Nowosad --- , MD Twite --- Department of Anaesthesiology, USA AT Bósenberg --- Department of Anesthesiology, USAPrimary hypothesis: A single, maximal hand squeeze of the Macintosh® laryngeal spray atomiser bulb may deliver a toxic dose of local anaesthetic to the oral mucosa of small infants. -
Accidental deposition of local anaesthetic in the subdural space following caudal block
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Prachee Sachan Veena Asthana Sanjay Agrawal --- Department of Anaesthesia, IndiaThe incidence of accidental injection of local anaesthetic into the subdural space during neuraxial blockade is rare. The presentation of unexplainable clinical signs that do not match the clinical picture of subarachnoid or intravascular injection of the local anaesthetic agent... -
Knowledge and awareness of high blood pressure in Ward F, Ifako-Ijaiye local government area, Lagos State, Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: YT Akindele --- Community Health and Primary Care Department, Nigeria OO Ayankogbe --- Community Health and Primary Care Department, NigeriaObjectives: In Nigeria, most people living with an elevated blood pressure are unaware of it until they suffer complications. The aim of this study was to determine levels of awareness of high blood pressure in Ward F, Ifako-Ijaiye local government... -
Communication and quality service delivery in Uganda's local government: the mediating influence of total quality management
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ibrahim A. Musenze --- Makerere University Business School, J.C. Munene --- Makerere University Business School, Joseph M. Ntayi --- Makerere University Business School, Waswa Balunywa --- Makerere University Business School,The study aimed at understanding the role of total quality management (TQM) as a mediator between communication and quality service delivery (QSD) in Uganda's local government (LGs). Data were collected using a cross-sectional research design from 212 LGs whose heads... -
Labour epidural analgesia audit in a teaching hospital in a developing country
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: G.G. Jacobs-Martin --- Department of Anesthesiology and Critical Care, South Africa J.L. Burke --- Department of Anesthesiology and Critical Care, South Africa A.I. Levin --- Department of Anesthesiology and Critical Care, South Africa A.R. Coetzee --- Department of Anesthesiology and Critical Care, South AfricaBackground: Neuraxial analgesia is currently considered to be the most effective method of intrapartum analgesia, causing little maternal and foetal sedation. While epidural analgesia has been well studied in developed countries, it is uncertain whether or not the results, particularly... -
Topological systems versus attachment relations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Cosimo Guido --- Department of Mathematics “Ennio De Giorgi”, Italy Sergey A. Solovyov --- Department of Mathematics and Statistics, Faculty of Science, Czech RepublicThe manuscript makes a category-theoretic comparison between the concepts of topological system of S. Vickers and attachment relation of C. Guido. With the help of the recent definition of the notions in the framework of an arbitrary variety of algebras,... -
The developmental model of technological capability in the Iranian medical equipment industries: A multi-case study
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mohammad-Ali Shafia --- Department of Progress Engineering, Iran Mehdi Mohammadi --- Department of New Sciences and Technologies, Iran Ali-Reza Babakhan --- Department of Progress Engineering, Iran Seyyed S Monajemzadeh --- Policy Making Office of Science and Technology, IranIn recent decades, many countries have selected the industrialisation path and adopted different strategies to improve economic conditions. In addition, wealth creation from science and technology has been welcomed by many theorists of development. Thus, developing countries have tried to... -
Do sawfish Pristis spp. represent South Africa's first local extirpation of marine elasmobranchs in the modern era?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BI Everett --- Oceanographic Research Institute, South Africa G Cliff --- KwaZulu-Natal Sharks Board, South Africa SFJ Dudley --- Branch: Fisheries Management, South Africa SP Wintner --- KwaZulu-Natal Sharks Board, South Africa RP van der Elst --- Oceanographic Research Institute, South AfricaLargetooth sawfish Pristis pristis and green sawfish P. zijsron were not uncommon in catches made in KwaZulu‑ Natal (KZN) on the east coast of South Africa in the mid part of the last century but apparently have disappeared from this... -
The Buysdorp conundrum: constructing and articulating community and identity in Soutpansberg, Limpopo Province
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology,Coenraad de Buys, the great-grandson of Jean du Bois, a Huguenot immigrant from Calais, France, was by all accounts a formidable man. He left an indelible, often disruptive, mark on the historical, political and sociocultural landscape of South Africa. Coenraad... -
Four principles of South African political culture at the local level
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Robert Thornton --- Department of Anthropology,Standard models of political thought derived from Liberal, Democratic and Classical models of political theory do not appear to fully comprehend the structure and processes of political action and culture at the local-level in South Africa. I present a concise... -
“He who pays the piper…”, the anomaly of custom and constitution local government and traditional leadership
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology, South AfricaIn December 2003 the Traditional Leadership and Governance Framework Act 2003 (No 41 of 2003) was eventually promulgated. This was the culmination of an extended process of submissions Consultation releasing of a draft White Paper workshops activities of a White... -
Another world is possible? A critical exploration of Escobar's ‘other worlds/worlds otherwise’
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Amanda Bourne --- Department of Social Anthropology,This article is primarily a literature review that attempts to present and critically discuss, as clearly and concisely as possible, Arturo Escobar's position on ‘development’ as discourse, idea, and billion-dollar industry and the role of anthropology within this, as evidenced... -
Lipid emulsion therapy: non-nutritive uses of lipid emulsions in anaesthesia and intensive care
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: M Buys --- Department of Anaesthesiology and Critical Care, South Africa PA Scheepers --- Department of Anaesthesiology and Critical Care, South Africa AI Levin --- Department of Anaesthesiology and Critical Care, South AfricaLipid emulsions were introduced into clinical practice more than five decades ago as a calorically dense, non-glucose-based energy source for parenteral nutrition. Recently, intravenous lipid emulsions have been used as rescue for systemic local anaesthetic toxicity. However, the non-nutritive, therapeutic... -
Case Study: Epithelioid sarcoma of the vulva
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: L J Rogers --- Division of Gynaecological Oncology, South Africa H Wu --- Division of Anatomical Pathology, South Africa D Govender --- Division of Anatomical Pathology, South Africa L A Denny --- Division of Gynaecological Oncology, South AfricaVulval epithelioid sarcoma is a rare, locally-aggressive malignant soft tissue tumour, which may present diagnostic difficulties, both clinically and pathologically. This can result in a delay in appropriate treatment, which consists primarily of radical wide local excision of the tumour... -
A pilot study of two radiation fractionation regimens in patients with cancer of the cervix, who were HIV positive and not on antiretroviral therapy
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: A M Hocepied --- Department of Radiation Oncology, H Westerink --- Department of Radiation Oncology, R Lakier --- Department of Radiation Oncology,The Department of Radiation Oncology at the previously named Pretoria Academic Hospital (now the Steve Biko Hospital) undertook a pilot study between 2000 and 2001 of 20 patients who were human immunodeficiency virus-positive with locally advanced cancer of the cervix... -
Assessing the potential benefits of organic and mineral fertiliser combinations on legume productivity under smallholder management in Zimbabwe
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Grace Kanonge --- Chemistry and Soils Research Institute, Zimbabwe Florence Mtambanengwe --- Soil Fertility Consortium for Southern Africa (SOFECSA), Department of Soil Science and Agricultural Engineering, Zimbabwe Muneta G Manzeke --- Soil Fertility Consortium for Southern Africa (SOFECSA), Department of Soil Science and Agricultural Engineering, Zimbabwe Hatirarami Nezomba --- Soil Fertility Consortium for Southern Africa (SOFECSA), Department of Soil Science and Agricultural Engineering, Zimbabwe Paul Mapfumo --- Soil Fertility Consortium for Southern Africa (SOFECSA), Department of Soil Science and Agricultural Engineering, ZimbabweProductivity of grain legumes on sandy soils of southern Africa is critically limited by marginal fertilisation. Effects of co-applying phosphorus (P)-based mineral fertilisers and organic nutrient resources to cowpea (Vigna unguiculata (L.) Walp.) and soyabean (Glycine max L.) were investigated... -
Ultrasound-guided neural blockade in Proteus syndrome
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Aidan C Kingwill --- Faculty of Health Sciences, Department of Anaesthesia, School of Medicine, South Africa Gillian Lamacraft --- Faculty of Health Sciences, Department of Anaesthesia, School of Medicine, South AfricaSummary: Proteus syndrome is a rare genetic disorder first described in 1979 and named after Proteus, a Greek demigod who was capable of changing his form to avoid capture. The incidence is < 1:1 000 000, but can be expected to be... -
Aquatic invertebrate fauna of wells in a tropical mountain climate, western Cameroon
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: G Nana Nkemegni --- Laboratoire de Biologie Générale, Faculté des Sciences, Université de Yaoundé 1, Cameroun SH Zébazé Togouet --- Laboratoire de Biologie Générale, Faculté des Sciences, Université de Yaoundé 1, Cameroun A Fomena --- Laboratoire de Biologie Générale, Faculté des Sciences, Université de Yaoundé 1, Cameroun OF Pountougnigni --- Laboratoire de Biologie Générale, Faculté des Sciences, Université de Yaoundé 1, Cameroun C Piscart --- UMR CNRS 6553 Ecosystèmes, Biodiversité, Evolution (ECOBIO), Université Rennes 1, FranceThe present study, conducted between May 2012 and September 2013, aimed to determine the distribution of groundwater invertebrates in the Bamoun tableland, Cameroon. A total of 216 samples taken from 30 wells in four localities – Foumban, Foumbot, Kouoptamo and... -
Creating tangible and intangible hospitality products with a sustainable value – The case of the Altes Land apples
Item type: Journal Article • Journal: • Authors: Sofie-Charlotte Depke --- School of Leisure and Tourism Management, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Christina Lück --- School of Leisure and Tourism Management, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Jennifer Peters --- School of Leisure and Tourism Management, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Lara Wellmer --- School of Leisure and Tourism Management, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Sarah Seidel --- School of Leisure and Tourism Management, Stenden University of Applied Sciences, Leeuwarden, The NetherlandsThis paper focuses on a specific sub-part of hospitality, namely sustainable product creation via regional integration. According to the research question “To what extent does the integration of local apple products contribute to regional sustainable value creation in Altes Land... -
On Order Bounded Subsets of Locally Solid Riesz Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Liang Hong --- , , USAIn a topological Riesz space there are two types of bounded subsets: order bounded subsets and topologically bounded subsets. It is natural to ask (1) whether an order bounded subset is topologically bounded and (2) whether a topologically bounded subset... -
Tightness relative to some (co)reflections in topology
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Richard N. Ball --- , , U.S.A Bernhard Banaschewski --- , , Canada Tomáš Jakl --- , , Nám Aleš Pultr --- , , Nám Joanne Walters-Wayland --- , , U.S.A.We address what might be termed the reverse reflection problem: given a monoreflection from a category A onto a subcategory B, when is a given object B ∈ B the reflection of a proper subobject? We start with a well... -
Water quality of the Luvuvhu River and its tributaries within the Thulamela Local Municipality, Limpopo Province, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mpho Monyai --- Department of Environmental Sciences, South Africa Rudzani A. Makhado --- Department of Environmental Sciences, South Africa Ntshenge O. Novhe --- Council for Geoscience, South AfricaThe study was conducted during dry and wet periods at the Luvuvhu River and its tributaries within the Thumalamela Local Municipality, Limpopo Province, South Africa. A total of 50 samples (25 per sampling session) were collected for physicochemical analysis at... -
Creating tangible and intangible hospitality products with a sustainable value – The case of the Altes Land apples
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Sofie-Charlotte Depke --- School of Leisure and Tourism Management, The Netherlands Christina Lück --- School of Leisure and Tourism Management, The Netherlands Jennifer Peters --- School of Leisure and Tourism Management, The Netherlands Lara Wellmer --- School of Leisure and Tourism Management, The Netherlands Sarah Seidel --- School of Leisure and Tourism Management, The NetherlandsThis paper focuses on a specific sub-part of hospitality, namely sustainable product creation via regional integration. According to the research question “To what extent does the integration of local apple products contribute to regional sustainable value creation in Altes Land... -
Home range and habitat use of Trumpeter Hornbills Bycanistes bucinator in an urban–forest mosaic, Eshowe, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Moses Chibesa --- School of Life Sciences, South Africa Barry Taylor --- School of Life Sciences, South Africa Tharmalingam Ramesh --- School of Life Sciences, South Africa Colleen T Downs --- School of Life Sciences, South AfricaDespite the negative impacts of urbanisation, some species adapt to pressures of habitat loss and fragmentation. Trumpeter Hornbills Bycanistes bucinator are a large avian forest frugivore that uses urban environments in South Africa. Consequently, we used GPS/UHF transmitters to study... -
Effect of treatment choices for cervical adenocarcinoma in situ on rates of residual disease, recurrence and progression
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Johanna Theuws --- Radboud University, The Netherlands David G. Allen --- Department of Gynecologic Oncology, AustraliaBackground: Cervical adenocarcinoma in situ (AIS) is the known precursor condition of cervical adenocarcinoma. The aim of this study is to evaluate treatment choices for AIS in terms of residual disease, recurrence and progression to invasive cancer. -
Blind Spots in African Management Education: An Examination of Issues Deserving Greater Attention
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Michelle P. Lee --- Lee Kong Chian School of Business, Singapore Howard Thomas --- Lee Kong Chian School of Business, Singapore Lynne Thomas Alexander Wilson --- School of Business and Economics, UKThere is reason to be optimistic about management education in Africa given the growth in the number of business schools on the continent and continued efforts at raising quality. There remains room for improvement in the field, of course, and... -
Gender dimensions in the local chicken value chain in northern Uganda
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: I. Akite --- Department of Agribusiness and Rural Development, Uganda I. P. Aryemo --- Department of Agribusiness and Rural Development, Uganda E. K. Kule --- Department of Agribusiness and Rural Development, Uganda B. Mugonola --- Department of Agribusiness and Rural Development, Uganda D. R. Kugonza --- Department of Agricultural Production, College of Agricultural & Environmental Sciences, Uganda M. W. Okot --- Department of Animal Production and Range Management, UgandaThe study was conducted to explore gender dimensions in the local chicken value chain in northern Uganda. Specifically, it focused on characterizing local chicken value chain actors, ascertaining level and determinants of gender participation as well as relationships between gender,... -
Xylocaine® 10% Pump Spray as topical anaesthetic for venepuncture pain
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A van Straten --- Department of Anaesthesiology and Critical Care, South Africa AA Murray --- Department of Anaesthesiology and Critical Care, South Africa AI Levin --- Department of Anaesthesiology and Critical Care, South AfricaBackground: Cutaneous analgesia for venepuncture pain can be achieved using various topically applied local anaesthetic formulations. Xylocaine® 10% Pump Spray containing lignocaine hydrochloride and 95% ethanol is exclusively recommended for mucosal anaesthesia. However, this formulation is readily able to penetrate... -
Novel technique for reversing phrenic nerve paresis secondary to interscalene brachial plexus block
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Ian O Fleming --- Department of Anaesthesia and Pain Medicine, Australia Krishna Boddu --- Department of Anaesthesia and Pain Medicine, AustraliaInterscalene brachial plexus block is the reference analgesic technique for shoulder surgery. Phrenic nerve palsy with hemidiaphragmatic paresis is an established complication that results in symptomatic dyspnoea in a small number of subjects, and is poorly tolerated. Established management is... -
Communal farmers of Namibia appreciate vultures and the ecosystem services they provide
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Christie A Craig --- DST-NRF Centre of Excellence at the FitzPatrick Institute of African Ornithology, Department of Biological Sciences, South Africa Robert L Thomson --- DST-NRF Centre of Excellence at the FitzPatrick Institute of African Ornithology, Department of Biological Sciences, South Africa Andrea Santangeli --- Helsinki Lab of Ornithology, Finnish Museum of Natural History, FinlandEcosystem services are cited as one of the many reasons for conserving declining vulture populations in Africa. We aimed to explore how communal farmers in Namibia perceive vultures and the ecosystem services they provide, with special focus on cultural and... -
The attitudes of riparian communities to the presence of water hyacinth in the Wouri River Basin, Douala, Cameroon
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SN Kenfack Voukeng --- Department of Zoology and Entomology, South Africa P Weyl --- Department of Zoology and Entomology, South Africa MP Hill --- Department of Zoology and Entomology, South Africa N Chi --- Watershed Task Group Coordinator (WTG), CameroonSince publication of the first record of Eichhornia crassipes in Cameroon in 1997, the weed has become highly invasive in the Wouri River Basin. Between June and September 2014, a socio-economic survey using participatory and qualitative methods was undertaken in... -
Materials and technology solutions to tackle the challenges in daily concrete construction for housing and infrastructure in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Wolfram Schmidt --- Department 7: Safety of Structures Bundesanstalt für Materialforschung und -prüfung (BAM), Germany Nsesheye Susan Msinjili --- Department 7: Safety of Structures Bundesanstalt für Materialforschung und -prüfung (BAM), Germany Hans-Carsten Kühne --- Department 7: Safety of Structures Bundesanstalt für Materialforschung und -prüfung (BAM), GermanySub-Saharan Africa's economic rise has caused a high demand for housing and infrastructure. This rapid growth has resulted in urgent challenges of enormous dimensions for urban and infrastructural planners and the entire construction sector. Considering the African supply chains and... -
Farmers’ trade skills: exploring the local food chain in Leeuwarden, the 2018 European Capital of Culture
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Marcelo de Mansoldo --- Academy of International Hospitality Research, Stenden Hotel Management School, The Netherlands Elena Cavagnaro --- Academy of International Hospitality Research, Stenden Hotel Management School, The Netherlands Vanessa de Oliveira Menezes --- Academy of International Hospitality Research, Stenden Hotel Management School, The NetherlandsLocal food chains have received increasing attention as an alternative to the mainstream, unsustainable global food model. Farmers who directly sell their products to consumers are an essential link in local food chains. Surprisingly, research on local food chains has... -
Local food and tourism in the Global South
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Gabriel CM Laeis --- Department of Hospitality, Tourism and Event Management, GermanyMany countries in the Global South import a significant share of the food served to tourists. For decades, closer linkages of local food producer and the resort industry have been heralded as an antidote to this unsustainable circumstance, further encouraged... -
Local food and authenticity in Greek restaurants
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Gerasimos-Panagiotis Angelopoulos --- Academy of International Hospitality Research, Stenden Hotel Management School, the Netherlands Jan Arend Schulp --- Academy of International Hospitality Research, Stenden Hotel Management School, the Netherlands Vanessa de Oliveira Menezes --- Academy of International Hospitality Research, Stenden Hotel Management School, the NetherlandsThis article aims to understand the role of local food and authenticity for restaurateurs in Athens and Patras, Greece. Nine restaurant owners were interviewed about their current dishes, menu and ingredients. The results of this qualitative research indicate that, for... -
Zooming out — Local food at the border: the case of the Emsland and Veenland
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Sarah Seidel --- School of Leisure and Tourism Management, The NetherlandsStraddling the Dutch-German border, the regions Veenland and Emsland are geographically and partially historically the same, but have undergone a different kind of tourism development. While tourism tends to be small scale on both sides, the German Emsland welcomes significantly... -
Nurturing forest resources in the Vhavenda community, South Africa: factors influencing non-compliance behaviour of local people to state conservation rules
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Mulugheta G Araia --- Forest Science Postgraduate Programme, Department of Plant and Soil Sciences, South Africa Paxie W Chirwa --- Forest Science Postgraduate Programme, Department of Plant and Soil Sciences, South AfricaThis comparative study analysed the compliance behaviour of local communities towards culturally protected areas and state-protected indigenous forests. Interviews were conducted with 135 households from four villages. Data analysis was done using non-parametric tests. All villages did not significantly differ... -
Centring ordinary people: grounded approaches to land reform in Southern Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Maano Ramutsindela --- Environmental and Geographical Science, South Africa Andrew Hartnack --- Independent researcher and evaluation specialist, South AfricaThis introduction to the timely special issue of Anthropology Southern Africa examines land reform in the region, offering ethnographic perspectives on a subject often dominated by economists, lawyers and journalists. It points to the need for grounded approaches that go... -
Toward a strategic management perspective on local content in African extractives: MNC procurement strategies between local responsiveness and global integration
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Michael Wendelboe Hansen --- Center for Business and Development Studies, DenmarkLocal content requirements – i.e. government backed requirements that extractive MNCs must procure inputs locally – are fast becoming a major issue in MNC-host country bargaining in Africa. As a result of increasingly stringent local content requirements, extractive MNCs operating... -
Promotion of local agri-food products through market knowledge: Consumption patterns and expectations of urban households towards local tomato purée in southern Benin
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Albertine M. Houessou --- , Benin Augustin K.N. Aoudji --- , Benin Rodrigue S. Kaki --- , Benin Smith A.R. Dossou --- , BeninUrban growth in sub-Saharan Africa is an opportunity for local agri-food businesses. However, local agri-food, including tomato purée in southern Benin, are struggling to emerge in urban markets. The main objective of this study was to identify avenues for increased... -
An investigation of the barriers to the uptake of local materials in Africa: A literature review approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oluwaseun S. Dosumu --- , South Africa Clinton Aigbavboa --- , South AfricaThe activities of the construction industry require that alternative construction materials be used for construction projects, especially in developing countries like those in Africa. The conventional construction materials are no longer sustainable because they have caused devastating environmental damage and... -
Maximal and singular operators in the local “complementary” generalized variable exponent Morrey spaces on unbounded sets
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Canay Aykol --- , Turkey Xayyam A. Badalov --- , Azerbaijan Javanshir J. Hasanov --- , AzerbaijanIn this paper we consider local “complementary” generalized Morrey spaces with variable exponent p(x) and a general function ω(r) defining a Morrey-type norm. We prove the boundedness of the Hardy-Littlewood maximal operator and Calderón-Zygmund singular operators with standard kernel in... -
Local food consumption and practice theory: A case study on guests’ motivations and understanding
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Lucia Tomassini --- , The Netherlands Simona Staffieri --- , Italy Elena Cavagnaro --- , The NetherlandsThis study explores the relationship between guests’ perceptions of local food and the motivations leading to its consumption at restaurants. Applying practice theory to consumption studies, the research draws on the “practical turn” in social theories and the renewed interest... -
Stakeholders’ perceptions of mammal occurrence and abundance on agricultural properties bordering the Boland Mountain Complex, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Willem A Nieman --- , South Africa Brittany C Schultz --- , South Africa Anita Wilkinson --- , South Africa Alison J Leslie --- , South AfricaThe encroachment of agricultural landscapes on natural ecosystems poses a significant threat to native wildlife persistence. In the Boland Mountain Complex (BMC), the presence of mammals was well documented in the 20th century, but an updated account is lacking. This... -
Gould’s Icones avium (1837–1838) and vagrancy in the Pennant-winged Nightjar Caprimulgus vexillarius — could it wander to islands in the Indian Ocean?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Guy M Kirwan --- , United StatesThe Pennant-winged Nightjar Caprimulgus vexillarius was described in 1838 by John Gould from a male in breeding plumage, but its given locality, various islands in the Indian Ocean and Red Sea coasts, was eventually deemed unreliable and replaced in the... -
Emergence, adherence and proliferation of industry level standards: A case study of Aligarh padlock industry, India
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Shekhar Jain --- , IndiaIndustry in developing nations has not attracted much attention from standard theorists. One of the reasons is that developing countries are considered ‘standard takers.’ As a result, the limited scholarship on standards in the context of developing countries largely remains... -
Intentions behind common and risky fires in south-eastern Tanzania
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Ellie Wood --- , United Kingdom Mercy Mgaya --- , United Republic of Tanzania Christopher Andrews --- , United Kingdom Kate Schreckenberg --- , United Kingdom Janet A Fisher --- , United Kingdom Isla Grundy --- , Casey M Ryan --- , United KingdomHuman-set fires are a crucial component of African savannas, affecting ecosystem structure, carbon emissions, local hazards and livelihoods. Yet, most fire research in these ecosystems focuses on the fire ecology of protected areas. Research exploring fire regimes in inhabited landscapes... -
Support for local wines in The Netherlands: opportunities for the hospitality industry
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Joost Ijsselmuiden --- , The NetherlandsThis article reports on a research project to measure the current intrinsic competitive value of Dutch wine in comparison to wines from renowned wine countries based on a taste and olfactory evaluation, and to explore the sustainable benefits that local... -
Local perceptions and sociocultural value of Hooded Vultures Necrosyrtes monachus in Burkina Faso, West Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clément Daboné --- University Centre of Tenkodogo/University Thomas Sankara, Burkina Faso Adama Ouéda --- University Joseph Ki-Zerbo, Burkina Faso Lindy J Thompson --- , South Africa Jacques Boco Adjakpa --- University of Abomey-Calavi, Benin Peter DM Weesie --- University of Groningen, The NetherlandsHooded Vultures have suffered from dramatic population declines in recent decades owing to anthropogenic pressures. To properly address this threat, the sociocultural perspectives towards this species should be considered. We examined peoples' perceptions, knowledge and beliefs on Hooded Vulture's sociocultural... -
A study of local government HIV/AIDS projects in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Leon Swartz --- Population and Development Research, Niel Roux --- Directorate: Population and Development Research,The primary goal of this study was to survey local government HIV/AIDS projects in South Africa. A total of 240 questionnaires were sent to local municipalities nationally between May and July 2002. A total of 44 municipalities returned their questionnaires,... -
Comments on the types and type localities of South African reptiles collected by Heinrich Bergius and Ludwig Krebs
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AaronM. Bauer --- Villanova University, USAKarl Heinrich Bergius (1790–1818) and Georg Ludwig Engelhard Krebs (1792–1844) were German apothecaries living in South Africa who collected zoological material, including reptiles, for Martin Hinrich Carl Lichtenstein, director of the Zoological Museum of the Wilhelm-Friedrichs-Universität zu Berlin (ZMB). Although... -
Are environmental conditions in the eyes of the beholder? Foreign and local firms in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Lilac Nachum --- Baruch College, City University New York, USA Chris Ogbechie --- Lagos Business School, NigeriaInternational business research has provided substantial empirical evidence that foreign firms investing in countries with adverse environmental conditions may emerge as the main competitors in those countries. Against this backdrop, the dominance of local banks in Nigeria is puzzling. Our... -
Examining the impacts of “local” concessions at major league baseball stadiums
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Alana N Seaman --- University of North Carolina Wilmington, USA Alexia Franzidis --- University of North Carolina Wilmington, USASports stadiums represent important hospitality entities that generate billions and act as both powerful memorials of and contributors to place and destination image for visitors and locals alike. With increasing entertainment competition and waning fan attendance, many sport facilities are... -
Frame presentations of compact hedgehogs and their properties
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Igor Arrieta --- University of Coimbra, Portugal Javier Gutiérrez García --- University of the Basque Country UPV/EHU, Spain Jorge Picado --- University of Coimbra, PortugalThis paper considers the compact hedgehog as a frame presented by generators and relations, based on the presentation of the frame of extended real numbers. The main focus will be on the point-free version of continuous and semi-continuous functions that... -
Blow-up of solutions for a wave equation with nonlinear averaged damping and nonlocal nonlinear source terms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Qingying Hu --- Henan University of Technology, China Donghao Li --- Henan University of Technology, China Shuo Liu --- Henan University of Technology, China Hongwei Zhang --- Henan University of Technology, ChinaThe initial-boundary value problem for a wave equation with nonlinear averaged damping and nonlocal nonlinear source term is considered. We provide the sufficient conditions of finite time blow-up for weak solutions with suitable conditions on initial data by an ordinary... -
More on cardinality bounds involving the weak Lindelöf degree
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Bella --- University of Catania, Italy N. Carlson --- California Lutheran University, USA I. Gotchev --- Central Connecticut State University, USAWe give several new bounds for the cardinality of a Hausdorff topological space X involving the weak Lindelöf degree ωL(X). In particular, we show that if X is extremally disconnected, then |X| ≤ 2 ωL (X)πχ(X)ψ(X), and if X... -
Representation theorems for closed ideals of CB (X)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Alireza Olfati --- Yasouj University, IranLet CB (X) be the Banach algebra of all continuous bounded ℂ-valued functions on a completely regular Hausdorff space X equipped with the supremum norm. We provide representation theorems for arbitrary closed ideals of CB (X). Indeed, for a closed... -
On localization of the Menger property
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nur Alam --- University of Gour Banga, India Debraj Chandra --- University of Gour Banga, IndiaIn this paper we introduce and study the local version of the Menger property, namely locally Menger property (or, locally Menger space). We explore some preservation like properties in this space. We also discuss certain situations where this local property... -
On the categorical behaviour of locales and D-localic maps
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Igor Arrieta --- University of Coimbra, Portugal Javier Gutiérrez García --- University of the Basque Country UPV/EHU, SpainIt was shown by Banaschewski and Pultr that the classical adjunction between Top and Loc restricts to an adjunction between the category Top D of TD -spaces and their continuous maps, and the category Loc D of all locales and... -
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An inverse source problem for a nonlinear pseudoparabolic equation with p-Laplacian diffusion and damping term
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Khonatbek Khompysh --- Al-Farabi Kazakh National University, Kazakhstan Aidos Ganizhanuly Shakir --- Al-Farabi Kazakh National University, KazakhstanIn this work, we study the unique solvability of the inverse problem that consists of determining a weak solution u(x, t) to the nonlinear pseudoparabolic equation with p−Laplacian and damping term -
Approximate controllability of non-instantaneous impulsive semi-linear neutral differential equations with non-local conditions and unbounded delay
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Oscar Camacho --- Universidad San Francisco de Quito USFQ, Ecuador S. Lalvay-Segovia --- , Ecuador Hugo Leiva --- , Ecuador L. Riera-Segura --- , EcuadorIn this work, we study the approximate controllability for retarded neutral differential equations with unbounded delay, non-instantaneous impulses, and non-local conditions. First, we set the problem in a natural Banach phase space satisfying Hale-Kato axiomatic Theory about the phase space... -
Some properties of conjunctivity (subfitness) in generalized settings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M. Andrew Moshier --- CECAT, Chapman University, USA Jorge Picado --- University of Coimbra, Portugal Aleš Pultr --- Charles University, Czech RepublicThe property of subfitness used in point-free topology (roughly speaking) to replace the slightly stronger T 1-separation, appeared (as disjunctivity) already in the pioneering Wallman’s [16], then practically disappeared to reappear again (conjunctivity, subfitness), until it was in the recent... -
The interconnection between the global and the local: case study of the indigenous Baka community of Nomedjoh, Cameroon
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Richard Atimniraye Nyelade --- University of Ottawa, CanadaThe impact of globalisation on local communities is a widely debated topic in sociology and anthropology. This article explores the dynamics and statics of local communities in the context of globalisation using the concepts of deterritorialisation and imagined community. The... -
Truncated vector lattices: A Maeda-Ogasawara type representation
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Karim Boulabiar --- Université de Tunis El Manar, Tunisia Rawaa Hajji --- Université de Tunis El Manar, TunisiaLet L be a truncated Archimedean vector lattice whose truncation is denoted by *. In a recent paper, we proved that there exists a locally compact Hausdorff space X such that L is a lattice isomorphic with a truncated vector... -
Factors affecting smallholder farmers’ local knowledge-based adaption to build resilience in Wolaita zone, Ethiopia
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Workneh Fanta --- Wolaita Sodo University, Ethiopia Pat Gibbons --- University College Dublin (UCD), Ireland Berhanu Kuma --- Wolaita Sodo University, EthiopiaThis study aims to identify factors affecting local adaptation strategies smallholder farmers are practising to adapt multiple stresses. Primary data were collected from 400 randomly sampled households from six districts of Wolaita zone by face-to-face interviews, focus group discussions, and... -
On the largest regular subring of C(X)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Adelzadeh --- Shahid Chamran University of ahvaz, Iran F. Azarpanah --- Shahid Chamran University of ahvaz, Iran R. Mohamadian --- Shahid Chamran University of ahvaz, IranWe call a real-valued function f on a topological space X a locally constant if each point x ∈ X has a neighborhood on which f is constant. The set of all locally constant functions f: X → ℝ is... -
Local and 2-local automorphisms of solvable Leibniz algebras with abelian and model nilradicals
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Iqboljon Karimjanov --- Saint-Petersburg State University, Russia Sardorbek Umrzaqov --- Andijan State University, Uzbekistan Bakhtiyor Yusupov --- V.I. Romanovskiy Institute of Mathematics, Uzbekistan Academy of Sciences, UzbekistanIn the paper, we describe the automorphisms on the solvable Leibniz algebras with the model or abelian nilradicals, whose complementary spaces are equal to two and one, respectively. We show that any local automorphism on a solvable Leibniz algebra with... -
Discrete selectivity, shrinking properties, and disjoint local π-bases
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gary Gruenhage --- Auburn University, U.S.A Vladimir V. Tkachuk --- Universidad Autónoma Metropolitana, MexicoUsing binary function spaces, we give an example of a pseudocompact discretely selective topological group. We show that, under PFA, every compact space of countable tightness has a countable disjoint local π-base at every point. If X is a compact... -
Mobile money and intra-household employment diversification: Empirical evidence from Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Richmond Atta-Ankomah --- University of Ghana, GhanaThis study investigates the effect of mobile money on intra-household employment diversification in Ghana using data from the seventh round of the Ghana Living Standards Surveys. The study relies on several econometric models including instrumental variables and shows that mobile... -
Remote sublocales
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mbekezeli Nxumalo --- University of South Africa, South AfricaWe use the notion of a remote collection of a Tychonoff space to define a remote sublocale of any locale. Our definition is conservative, in the sense that, a subset is remote if and only if the sublocale it induces... -
Use and management of seagrass ecosystems in southwestern Madagascar
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Rakotonjanahary --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar C Rakotomahazo --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar J Nirinamamiko --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar T Razakarisoa --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar GGB Todinanahary --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar T Lavitra --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar G Lepoint --- UR FOCUS, University of Liège, Belgium MA Vanderklift --- CSIRO Environment, Indian Ocean Marine Research Centre, Australia L Ranivoarivelo --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, MadagascarMadagascar’s seagrass meadows are among the least-studied ecosystems in the western Indian Ocean region. To facilitate sustainable management, understanding the traditional uses of seagrass areas in relation to current management policies is necessary. This study assessed the uses of, and... -
The proper homotopy of Alexandroff spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Tomás Fernández-Bayort --- Instituto Pablo Neruda, Spain Álvaro Luque --- Universidad de Sevilla, Spain Antonio Quintero --- Universidad de Sevilla, SpainThis paper introduces the study of the infinity in the class of Alexandroff spaces by establishing the proper category of locally finite Alexandroff spaces. We observe that the McCord and Clader theorems are available in this setting. The paper can... -
Filtered bicolimit presentations of locally presentable linear categories, Grothendieck categories and their tensor products
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Julia Ramos González --- Université Catholique de Louvain, Institut de Recherche en Mathématique et Physique, BelgiumWe investigate two different ways of recovering a Grothendieck category as a filtered bicolimit of small categories and the compatibility of both with the tensor product of Grothendieck categories. Firstly, we show that any locally presentable linear category (and in... -
Hunting the hippo: a brief history of wildlife hunting and the reconfiguration of animal-human relations in Namibia’s Zambezi region
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Hauke-Peter Vehrs --- University of Cologne, GermanyThe Zambezi region in north-eastern Namibia is located at the centre of the Kavango-Zambezi Transfrontier Conservation Area (KAZA TFCA), an area that is endowed with a great variety of wildlife and managed not only to protect this asset but also... -
On conjugacy of additive actions in the affine Cremona group
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ivan Arzhantsev --- HSE University, RussiaAn additive action on an irreducible algebraic variety X is an effective action with an open orbit of the vector group . Any two additive actions on X are conjugate by a birational automorphism of X. We prove that, if... -
Notes on sublocales and dissolution
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jorge Picado --- University of Coimbra, Portugal Aleš Pultr --- Charles University, Czech RepublicThe dissolution (introduced by Isbell in [3], discussed by Johnstone in [5] and later exploited by Plewe in [12, 13]) is here viewed as the relation of the geometry of L with that of the more dispersed T(L) = S(L)op... -
The ‘Airlift Program’ and the Making of a ‘Glocal’ Citizen: Exploring the Nomadic Subject in Philip Ochieng’s Biography, The 5th Columnist: A Legendary Journalist (2015) by Liz Gitonga-Wanjohi
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Christopher Odhiambo Joseph --- Moi University, KenyaThe story of Kenyans who travelled to study in the United States of America, in what is known as the airlifts program and, its resultant implications on the project of the nation building, is well known. So much has been... -
Serving Hot Tea: Analyzing Narratives of ‘Abroad’ on Glocal Kenyan Twitter/X Spaces
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Caroline Mose --- The Mawazo Institute, KenyaSocial media reconstitutes the idea of ‘abroad’ as a geographical place, shortens the symbolic distance between borders, and renders the local and global into one almost seamless space. This seamlessness is both metaphorical and symbolic, where happenings on the spatial... -
On positive solutions of the Cauchy problem for doubly nonlocal equations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sanping Rao --- Nanchang Institute of Technology, P.R. China Chunxiao Yang --- Xi’an University of Architecture and Technology, P.R. China Jinge Yang --- Nanchang Institute of Technology, P.R. ChinaWe study the Cauchy problem for the doubly nonlocal equation -
Norm and relative uniform convergence
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zili Chen --- Southwest Jiaotong University, China Fu Zhang --- Southwest Jiaotong University, ChinaIn this paper, we show that if H is a Dedekind complete normed Riesz space with the local Egoroff property, then H is lattice isomorphic to an ideal of an AM-space if and only if for any order bounded norm... -
Lebesgue-Fourier algebras on coset spaces and approximate amenability
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Maryam Esfandani --- Isfahan University of Technology, Iran Rasoul Nasr Isfahani --- Isfahan University of Technology, IranLet K be a compact subgroup of a locally compact group G. In this work, we initiate an investigation of the Lebesgue-Fourier algebra S 1 A(G/K) on the coset space G/K with pointwise multiplication; after some general results on the... -
On variants and generalizations of J-frames
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Siyabonga S. Dubazana --- University of KwaZulu-Natal, S.A. Simo S. Mthethwa --- University of KwaZulu-Natal, S.A.A J-frame is a pointfree topology counterpart of the concept of a J-space. In this paper, we present a study of some frames satisfying conditions that are stronger (and some that are weaker) than those defining J-frames. Conditions under which... -
A multiscale analysis of returns and volatility spillovers in cryptocurrency markets: A post-COVID perspective
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Andrew Phiri --- Nelson Mandela University, South Africa Izunna Anyikwa --- Nelson Mandela University, South AfricaSince the onset of the COVID-19 pandemic, leading cryptocurrencies have undergone significant price fluctuations, prompting widespread interest in the interdependence and spillover effects among cryptocurrency markets, as well as in identifying the key cryptocurrencies that drive market movements. This study... -
A survey and exposition of sub-Hausdorff separation axioms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jeffrey T. Denniston --- Kent State University, USA Austin Melton --- Kent State University, USA Stephen E. Rodabaugh --- Institute for Applied Topology and Topological Structures, Youngstown State University, USA Jamal K. Tartir --- Institute for Applied Topology and Topological Structures, Youngstown State University, USAThis paper surveys and develops sub-Hausdorff axioms. It augments known relationships involving T 0 (Kolmogorov), S 0 (quasi-sobriety), S 1 (sobriety), T 1 (Fréchet), and T 2 (Hausdorff ) by examining a large suite of sub-Hausdorff axioms. Emphasis is given... -
Local complementation in Banach spaces and its preservation under free constructions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Antonio Avilés --- Universidad de Murcia, Spain Gonzalo Martínez-Cervantes --- Universidad de Murcia, Spain Abraham Rueda Zoca --- Universidad de Granada, SpainIn this work we consider natural generalizations of local complementation in Banach spaces, which include Lipschitz-local complementation. We show that all these notions are indeed equivalent to the classical notion of local complementation of Banach spaces. As an application, we... -
The influence of Connochaetes taurinus carcass decomposition on soil nutrient composition in grasslands
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: EA Kullander --- University of South Africa, South Africa MS Deutschländer --- University of South Africa, South Africa VM Ngole-Jeme --- University of South Africa, South Africa HI Melville --- University of South Africa, South AfricaDecomposing carcasses leach nutrients into soils, forming dense, nutrient-rich islands. The effect of liquid influx on ecological dynamics from decomposing blue wildebeest (Connochaetes taurinus) carcasses on soil nutrient content at various stages of decomposition in a grassland ecosystem was investigated... -
A note on fibers and Vietoris topologies of paratopological groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Yu-Ming Deng --- Beijing University of Technology, China Liang-Xue Peng --- Beijing University of Technology, ChinaIf f: G → Y is an irreducible closed continuous mapping defined on a regular weakly collectionwise normal first-countable meta-Lindelöf locally σ paratopological group G onto a T 1-space Y which has a neighborhood ωω -base at a point y... -
Global Bifurcation of Nodal Solutions of Elliptic Kirchhoff Equations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Xuanrong Shi --- Northwest Normal University, P.R. China Ruyun Ma --- Northwest Normal University, P.R. ChinaWe prove the existence of nodal solutions to the Kirchhoff type problem -
Pastoralist knowledge and perceptions on land degradation and forage diversity loss: a case study in the Bordj Bou Arreridj semi-arid region, Algeria
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Lounis Semara --- Mohamed El Bachir El Ibrahimi University of Bordj Bou Arreridj, Algeria Sofiane Bensefia --- Mohamed El Bachir El Ibrahimi University of Bordj Bou Arreridj, Algeria Farida Belkasmi --- Mohamed El Bachir El Ibrahimi University of Bordj Bou Arreridj, Algeria Charefeddine Mouffok --- Ferhat Abbas Setif 1 University, Algeria Abdelaziz Bouzegag --- University Centre of Mila, AlgeriaThis study assessed the level of knowledge and perception of pastoralists in the Bordj Bou Arreridj zone in the semi-arid region of Algeria regarding pastureland degradation and loss of forage species diversity. Through group discussions and field surveys, 100 pastoralists... -
On quotient rings of pointfree function rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Batsile Tlharesakgosi --- University of South Africa, South Africa Sharon Nyokabi Wamugunda --- University of South Africa, South AfricaLet L be a completely regular frame. Associated with each I ∈ βL are two ideals, MI and OI , of the ring of real-valued continuous functions on a frame L. In this paper, we describe the intersection of all... -
Exploring the effects of historical legacies and patronage politics on human resource management in Ghana’s local government
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Mohammed Ibrahim --- Global Development Institute, The University of Manchester, UK Farhad Hossain --- Global Development Institute, The University of Manchester, UKThis paper examines human resource management (HRM) practices in Ghana's local government and advances a twofold argument. First, it shows that decentralization reforms introduced in the 1980s and 1990s locked the system into a path-dependent governance trajectory. This has narrowed... -
Effects of nonlocal source terms on Kirchhoff-type double phase equations with variable exponents: Existence of three distinct solutions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Khaled Kefi --- Center for Scientific Research and Entrepreneurship, Northern Border University, Saudi Arabia Haikel Ouerghi --- Department of Quantitative Methods, Jendouba University, Research Laboratory of Mathematics and Applications, Tunisia Khaled Benali --- Department of Mathematics, Faculty of Sciences of Gabes, Research Laboratory of Mathematics and Applications, Tunisia Nguyen Thanh Chung --- Faculty of Mathematics and Information Technology, The University of Danang - University of Science and Education, VietnamThis paper investigates a class of Kirchhoff-type double phase problems distinguished by the inclusion of two nonlocal source terms and formulated in the framework of variable exponent Sobolev spaces. By applying a variant of Bonanno’s critical point theorem [12], we...
