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Student Development and Support using a Logotherapeutic Approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Tshwane University of Technology, Juan A. Nel --- University of South Africa,This study reports on participants' meaning-centred experiences and perspectives after attending a logotherapy-based student development and support programme. Thirteen students who were enrolled in the first year of the academic programme, in health science programme at a South Africa university,... -
Measuring Readiness and Success at a Higher Education Institution
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Juan-Claude Lemmens --- University of Pretoria, Gerhard I. du Plessis --- University of Pretoria, David J.F. Maree --- University of Pretoria,This study investigated readiness as a correlate of academic success among beginning university students. A total of 829 first-time entering students from a large business sciences faculty were participants (males = 319, females = 510, mean age = 19, SD... -
A Case of Tragic Optimism: Volunteer Counsellors' Experience of Meaning
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Tshwane University of Technology, Juan A. Nel --- University of South Africa,This study applied concepts from logotherapy to construct the meaning that volunteer crisis counsellors experienced by working with victims of crime. Data were collected from seven participants who delivered services at community-driven crisis centre using a qualitative approach. The data... -
Compassion Fatigue, Burnout and Compassion Satisfaction: Prevalence among Nursing Students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Tshwane University of Technology, Juan A. Nel --- University of South Africa,This article reports on the professional quality of life of a sample of participants who were enrolled for an academic programme in Nursing Science (N = 80, females = 73). Data were collected utilising the Professional Quality of Life (ProQOL... -
ON WEIGHTED COMPOSITION OPERATORS BETWEEN SPACES OF MEASURABLE FUNCTIONS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: JuanJ. Font --- Departamento de Matemáticas, SpainIn this note we provide an elementary proof of the following: every automorphism S of L ∞ is of the form Sf = f o Sz for all f ε L ∞. As a first corollary we prove that if... -
A NOTE ON THE BOUNDEDNESS OF AN INTEGRO-DIFFERENTIAL EQUATION
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Juan Napoles Valdes --- Universidad de la Cuenca del Plata, Corrientes, Argentina,Universidad Tecnologica Nacional, Chaco, Argentina,In this paper we study the prolongability and certain properties of the integro-differential equation [image omitted] -
Breeding status of the Ruddy Shelduck Tadorna ferruginea at Fuerteventura, Canary Islands: natural colonisation of two habitat types on an oceanic island
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Eduardo Garcia-del-Rey --- Departamento de Ecología, Facultad de Biologí, Spain Juan Antonio Rodriguez-Lorenzo --- , SpainDuring the breeding season of 2008 a total of 24–30 female Ruddy Shelduck Tadorna ferruginea with brood were counted at two habitat types (reservoirs and natural gullies). The population was relatively stable from 1994–2002, with a likely increase afterwards. Generally,... -
Connectivity between the Algerian population of Greater Flamingo Phoenicopterus roseus and those of the Mediterranean basin
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Abdennour Boucheker --- , France Boudjéma Samraoui --- Laboratoire de recherche et de conservation des zones humides, Saudi Arabia Roger Prodon --- , France JuanA Amat --- , Spain Manuel Rendón-Martos --- Reserva Naturel Laguna de Fuente de Piedra, Spain Nicola Baccetti --- , Italy Francesc Vidali Esquerre --- , Spain Sergio Nissardi --- , Italy Özge Balkiz --- , Turkey Christophe Germain --- , France Mouloud Boulkhssaim --- Institut de Biologie, Algeria Arnaud Béchet --- , FranceIn the Mediterranean basin, Greater Flamingos Phoenicopterus roseus constitute a metapopulation with natal and breeding dispersal among colonies. However, the rate of exchange between European and North African colonies remains poorly known. In this paper, we document the wintering and... -
Dynamic base-age invariant site index models for Tectona grandis in peninsular India
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Vindhya P Tewari --- Institute of Wood Science and Technology, India Juan G Álvarez-González --- Unidad de Gestión Forestal Sostenible, Departamento de Ingeniería Agroforestal, Spain Klaus von Gadow --- Burckhardt Institute, GermanyData from 27 remeasured sample plots were used to evaluate dynamic base-age invariant site index models for teak (Tectona grandis) forests in Karnataka, India. The data were obtained in observational field studies covering a wide range of sites in Karnataka... -
Bird communities in two oceanic island forests fragmented by roads on Tenerife, Canary Islands
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JuanD Delgado JoséR Arévalo José María Fernández-PalaciosAlthough most studies on road effects on birds have been conducted on continental grounds, road fragmentation on oceanic islands is often heavier. We assessed variation in bird communities near (≤25 m) and far (>100 m) from forest roads dividing laurel... -
Probable population decline of the Little Bustard Tetrax tetrax in north-west Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Carlos Palac’n --- , Spain Juan Carlos Alonso --- , SpainTo document the population trend of the Little Bustard in north-west Africa, we performed an extensive literature review, and conducted six surveys in seven areas with potentially suitable habitat in north-western Morocco between 1999 and 2005. Both the number of... -
DNA sequences from the Little Brown Bustard Eupodotis humilis suggest its close phylogenetic relationship to the Little Bustard Tetrax tetrax
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: José Luis Horreo --- Museo Nacional de Ciencias Naturales, Spain Juan Carlos Alonso --- Museo Nacional de Ciencias Naturales, Spain Borja Milá --- Museo Nacional de Ciencias Naturales, SpainTaxonomic classification of birds based exclusively on morphology and plumage traits has often been found to be inconsistent with true evolutionary history when tested with molecular phylogenies based on neutrally evolving markers. Here we present cytochrome-b gene sequences for the... -
Potential density and tree survival: an analysis based on South African spacing studies
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Klaus von Gadow --- Department of Forest and Wood Science, South Africa Heyns Kotze --- Mondi, South Africa Thomas Seifert --- Department of Forest and Wood Science, South Africa Kai Staupendahl --- Argus Forstplanung, Germany Juan G Álvarez González --- University of Santiago de Compostela, SpainBecause of the high cost of maintaining a series of unthinned, densely stocked stands over long periods of time, suitable data about potential forest density and tree survival for different planting espacements are difficult to find. Direct assessment of the... -
Evaluating and predicting the failure probabilities of hedge funds
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Hee Soo Lee --- Discipline of Finance, School of Business, Korea Juan Yao --- Discipline of Finance, AustraliaHedge funds have the most sophisticated risk management practices; however, they also appear to have a short lifetime relative to other managed funds. In this study we investigate the failure probabilities of hedge funds – particularly the failures due to... -
Burnout among anaesthetists in South Africa
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Nicolaas van der Walt --- Faculty of Health Sciences, Department of Anaesthesiology, School of Clinical Medicine, South Africa Juan Scribante --- Faculty of Health Sciences, Department of Anaesthesiology, School of Clinical Medicine, South Africa Helen Perrie --- Faculty of Health Sciences, Department of Anaesthesiology, School of Clinical Medicine, South AfricaBackground: Studies have been done to determine the level of burnout in anaesthesiology internationally, but not in South Africa. -
Modelling dominant height growth in plantations of Pseudotsuga menziesii (Mirb.) Franco in Spain
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos A López-Sánchez --- Instituto de Silvicultura e Industria de la Madera, México Juan G Álvarez-González --- Departamento de Ingeniería Agroforestal, Escuela Politécnica Superior, Spain Ulises Diéguez-Aranda --- Departamento de Ingeniería Agroforestal, Escuela Politécnica Superior, Spain Roque Rodríguez-Soalleiro --- Departamento de Producción Vegetal, Escuela Politécnica Superior, SpainA model for predicting dominant height growth and site index of Pseudotsuga menziesii (Mirb.) Franco in Spain was constructed. Data from stem analysis of 117 site trees were used. Four dynamic equations using the algebraic difference approach (ADA) and its... -
How do Spanish EFL learners perceive grammar instruction and corrective feedback?
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Juan de Dios Martínez Agudo --- Department of Language and Literature Didactics, Faculty of Education, SpainThis research study of an exploratory-interpretive nature mainly focuses on the role and effectiveness of grammar instruction and corrective feedback as controversial areas of language instruction of considerable debate in SLA research and L2 pedagogy. Since the question today is... -
Therapist experiences of equine-assisted psychotherapy in South Africa: A qualitative study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lucinda Johns --- School of Applied Human Sciences, Shaida Bobat --- School of Applied Human Sciences, Juanita Holder --- School of Applied Human Sciences,This study examined therapists’ perceptions and experiences of equine-assisted psychotherapy (EAP). Participants were 14 practising EAP therapists (females = 86%; male = 14%; age range 20 to 69 years) from across South Africa. They were interviewed utilising electronic interview media... -
A taper function for Pseudotsuga menziesii plantations in Spain
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos A López-Sánchez --- Instituto de Silvicultura e Industria de la Madera, México Roque Rodríguez-Soalleiro --- Departamento de Producción Vegetal, Spain Fernando Castedo-Dorado --- Departamento de Ingeniería y Ciencias Agrarias, Spain Sacramento Corral-Rivas --- División de Estudios de Posgrado e Investigación, México Juan G Álvarez-González --- Departamento de Ingeniería Agroforestal, SpainFive stem taper models belonging to three different taper function categories were fitted to data corresponding to 282 Pseudotsuga menziesii trees. The trees were selected in the area surrounding 61 research plots installed in Galicia, Asturias and the Basque Country,... -
The prevalence of chronic postmastectomy pain syndrome in female breast cancer survivors
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Muhammed Luqmaan Variawa --- Department of Anaesthesiology, School of Clinical Medicine, Faculty of Health Sciences, South Africa Juan Scribante --- Department of Anaesthesiology, School of Clinical Medicine, Faculty of Health Sciences, South Africa Helen Perrie --- Department of Anaesthesiology, School of Clinical Medicine, Faculty of Health Sciences, South Africa Sean Chetty --- Department of Anaesthesiology, School of Clinical Medicine, Faculty of Health Sciences, South AfricaBackground: Breast cancer is one of the most common cancer diagnoses in women. Surgical treatment is indicated in most patients. Postmastectomy pain syndrome (PMPS) is a debilitating neuropathic pain syndrome that develops after breast surgery. A review of the literature... -
Alarming decline and range reduction of the highly threatened Great Bustard Otis tarda in Morocco
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Juan Carlos Alonso --- Department of Evolutionary Ecology, Spain Carlos Palacín --- Department of Evolutionary Ecology, Spain Alejandro Onrubia --- Fundación MIGRES, Spain Rachid Aboulouafae --- SPCDRN/DREFLCD du Rif, Haut Commissariat aux Eaux et Forêts et à la Lutte Contre la Désertification (HCEFLCD), Morocco Mohamed Amezian --- GREPOM Unité régionale Tanger-Tétouan, Morocco Abdelaziz El Idrissi Essougrati --- GREPOM Unité régionale de Rabat, Morocco Rachid El Khamlichi --- GREPOM Unité régionale Tanger-Tétouan, Morocco Mohamed Noaman --- Service de la Conservation de la Flore et de la Faune Sauvage, MoroccoA Great Bustard Otis tarda survey carried out in spring 2015 in Morocco confirmed the decline of this highly endangered population. Bustards were only seen at two of the seven leks occupied ten years ago. The total number of birds... -
Microbial contamination and labelling of self-prepared, multi-dose phenylephrine solutions used at a teaching hospital
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Andreas van den Heever --- Faculty of Health Sciences, Department of Anaesthesiology, South Africa Juan Scribante --- Faculty of Health Sciences, Department of Anaesthesiology, South Africa Helen Perrie --- Faculty of Health Sciences, Department of Anaesthesiology, South Africa Warren Lowman --- Vermaak and Partners Pathologists, South AfricaBackground: Common practice at Chris Hani Baragwanath Academic Hospital (CHBAH) is to use boluses from a self-prepared, multi-dose phenylephrine solution to treat spinal anaesthesia-induced hypotension in patients undergoing a Caesarean section. The aims of this study were to determine if... -
Prevalence of HIV and malaria: a cross-sectional study on Bioko Island, Equatorial Guinea
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Xiangbin Zheng --- Central Laboratory, People’s Republic of China Min Lin --- Central Laboratory, People’s Republic of China Dong-De Xie --- Laboratory Medical Center, People’s Republic of China Jian Li --- Department of Parasitology, People’s Republic of China Jiang-Tao Chen --- The Chinese medical aid team to the Republic of Equatorial Guinea, People’s Republic of China Urbano Monsuy Eyi --- Central Blood Transfusion Service, Republic of Equatorial Guinea Santiago-m Monte-Nguba --- Medical Laboratory, Republic of Equatorial Guinea Juan Carlos Sala Ehapo --- Medical Laboratory, Republic of Equatorial Guinea Hui Yang --- Central Laboratory, People’s Republic of China Hui-Tian Yang --- Central Laboratory, People’s Republic of China Li-Ye Yang --- Central Laboratory, People’s Republic of ChinaMalaria and HIV are two of the most severe public health problems in Africa. However, epidemiological data on Bioko Island is scarce. To investigate the prevalence of malaria and HIV infections and assess association of malaria and HIV infections and... -
Wood anatomical and chemical properties related to the pulpability of Eucalyptus globulus: a review
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Isabel Carrillo --- Laboratorio de Recursos Renovables, Centro de Biotecnología, Chile Claudia Vidal --- Laboratorio de Recursos Renovables, Centro de Biotecnología, Chile Juan P Elissetche --- Laboratorio de Recursos Renovables, Centro de Biotecnología, Chile Regis T Mendonça --- Laboratorio de Recursos Renovables, Centro de Biotecnología, ChileEucalyptus globulus is one of the most important hardwood species used by the pulp and paper industry due to its high pulp yield, high wood density, excellent fibre quality and good handsheet properties. However, the wood is a highly variable... -
Institutional investment management: An investor's perspective on the relation between turnover and performance
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Diego Víctor de Mingo-López --- Department of Finance and Accounting, Spain Juan Carlos Matallín-Sáez --- Department of Finance and Accounting, SpainThe main aim of this study is to analyse the relationship between turnover and performance in institutional investment management. For a sample of US equity mutual funds during the period January 1999–December 2014, we show that high-turnover funds do not... -
Alternative pine hybrids and species to Pinus patula and P. radiata in South Africa and Swaziland
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Phillip Hongwane --- Technical Services, South Africa Glen Mitchell --- Kuching, Malaysia Arnulf Kanzler --- Sappi Forest Research, South Africa Steven Verryn --- Creation Breeding Innovations, South Africa Juan Lopez --- Department of Forestry and Environmental Resources, USA Paxie Chirwa --- Department of Plant and Soil Sciences, South AfricaThrough the collaborative efforts of companies affiliated with the International Program for Tree Improvement and Conservation (Camcore), a number of pine hybrids have been produced over the last decade. Many of these have been planted in trials across southern Africa... -
A synthesis on the impact of non-native conifer plantations on ant and beetle diversity in north-western Patagonia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Juan C Corley --- Grupo de Ecología de Poblaciones de Insectos, Argentina Romina D Dimarco --- Grupo de Ecología de Poblaciones de Insectos, Argentina Déborah Fischbein --- Grupo de Ecología de Poblaciones de Insectos, Argentina María V Lantschner --- Grupo de Ecología de Poblaciones de Insectos, Argentina Andrés S Martínez --- Grupo de Ecología de Poblaciones de Insectos, Argentina Maité Masciocchi --- Grupo de Ecología de Poblaciones de Insectos, Argentina Analia Mattiacci --- Grupo de Ecología de Poblaciones de Insectos, Argentina Juan Paritsis --- Grupo de Ecología de Poblaciones de Insectos, Argentina José M Villacide --- Grupo de Ecología de Poblaciones de Insectos, ArgentinaSoftwood forestry with non-native tree species is increasing worldwide and especially in many developing countries of the Southern Hemisphere. Tree plantations are beneficial in environmental and socioeconomic aspects, but at the same time there are recognised costs associated with afforestation... -
Connectedness for lattice-valued subsets in lattice-valued convergence spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Qiu Jin --- Department of Mathematics, P.R. China Lingqiang Li --- Department of Mathematics, P.R. China Yanrui Lv --- Department of Mathematics, P.R. China Fangfang Zhao --- Department of Mathematics, P.R. China Juan Zou --- School of Mathematical Sciences, P.R. ChinaIn this paper, a connectedness in stratified L-generalized convergence spaces, is defined and discussed. This connectedness is different from Jäger’s connectedness, in particular, it is defined for L-subsets however Jäger’s connectedness is defined for crisp subsets. Thus this give a... -
To what extent can CLIL learners’ oral competence outcomes be explained by contextual differences? Updated empirical evidence from Spain
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Juan de Dios Martínez-Agudo --- Department of Didactics of Languages and Literatures, SpainBased on the association between differences in learning contexts and differences in linguistic outcomes as supported by second language acquisition (SLA) research, this study examines the differential effects of particular contextually dependent variables on Spanish learners’ English oral communication skills... -
Eigenvalues of Sturm-Liouville problems with distribution potentials on time scales
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ji-jun Ao --- College of Sciences, China Juan Wang --- College of Sciences, ChinaThe eigenvalues of a class of Sturm-Liouville problems with distribution potentials and eigenparameter-dependent boundary conditions on bounded time scales are investigated. By treating with the eigenparameter-dependent boundary condition, the governing equation with distribution potential and time scales, the results of... -
Associations between mental distress, poly-victimisation, and gender attitudes among adolescent girls in Cambodia and Haiti: an analysis of Violence Against Children surveys
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Christina Juan --- , USA Jeffrey Edmeades --- , USA Suzanne Petroni --- , USA Chisina Kapungu --- , USA Rebecca Gordon --- , USA Daniela Ligiero --- , USAThis study aims to explore the effects of poly-victimisation (defined as the experience of multiple different forms of violence, including physical, emotional, and/or sexual) and gender attitudes on mental distress and suicidal ideation among adolescent girls, using cross-sectional nationally representative... -
An annotated checklist of the leech (Annelida: Hirudinida) species of the Moulouya River basin, Morocco, with several new distribution records and a historical overview
Item type: Journal Article • Journal: African Zoology • Authors: Younes Mabrouki --- Université Mohamed Premier, Morocco Raja Ben Ahmed --- Faculté des Sciences de Tunis, LR18ES41 Ecologie, Biologie et Physiologie des organismes aquatiques, Tunisia Abdelkhaleq Fouzi Taybi --- Université Mohamed Premier, Morocco Juan Rueda --- Instituto Cavanilles de Biodiversidad y Biología Evolutiva (ICBiBE-UV), SpainA historical overview of the leech fauna of Morocco, based on both literature data, museum collections and new material, sampled in more than 100 sites in the Moulouya River basin (eastern region of Morocco), is provided. Twenty species from five... -
Nonlinear diameter preserving maps on function spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Juan J. Font --- Departamento de Matemáticas (IMAC), Spain Maliheh Hosseini --- Department of Mathematics, IranIn this paper we study nonlinear diameter preserving mappings defined between function spaces and obtain generalizations of, basically, all known results concerning diameter preservers. In particular, we give a complete description for algebras of continuously differentiable functions, (little) Lipschitz algebras... -
Utilising lecturer input to inform the design of an audio e-assessment tool
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Henk Louw --- , South Africa Juan Steyn --- , South Africa Jessica Pool --- , South AfricaWith the rise of digital recording devices and web-based learning platforms, audio feedback has grown in popularity owing to easier distribution of recordings. Audio feedback is touted as having multiple advantages over written feedback. Although there are many studies reporting... -
The Routledge Handbook of Second Language Acquisition and Pragmatics
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Haijuan Yan --- , China Lianrui Yang --- , China -
Initial growth results comparing first generation F1 and advanced-generation F2 Pinus patula × Pinus tecunumanii interspecific hybrid families
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: André Nel --- , Juan J Acosta --- , Gary R Hodge --- ,The hybrid between Pinus patula and P. tecunumanii low elevation (PPTL) and high elevation (PPTH) sources was developed in the 1990s in South Africa and commercialised during the 2000s in response to high post-establishment mortality of P. patula caused by... -
A representation of continuous lattices based on closure spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Qingguo Li --- , China Longchun Wang --- , China Lingjuan Yao --- , ChinaIn this paper, we establish the link between continuous lattices and closure spaces. By generalizing the notion of algebraic closure space to continuous closure space, we show that continuous lattices can be represented by continuous closure spaces, just as algebraic... -
Bed and Breakfast (B&B) social servicescape and customer satisfaction: Positive emotion mediation and sex moderation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Juan Liu --- , China Xi Li --- , China Hong Chen --- , China Xinwei Su --- , China Runzhe Yu --- , ChinaWe investigated the influence of bed and breakfast (B&B) social servicescape on customer satisfaction, as well as the mediating effect of customer positive emotion and the moderating role of sex. Participants were a convenience sample of 305 B&B customers from... -
The Catalan tourism subsystem: applying the methodology of subsystems in the tourism sector
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Albert Vancells --- , Spain Juan Antonio Duro --- , SpainThe analysis of input-output is one of the methodologies most applied in tourism literature to the study of the impacts of tourism activity. In this article, we apply the input-output (IO) subsystems methodology. This methodology is a useful tool for... -
Linking servant leadership to customer-oriented organisational citizenship behaviour: The moderating role of perceived interactional justice
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shaping Qiu --- , USA Ruijuan Zhang --- , China Sami Jabarkhail --- , USA Larry M. Dooley --- , USAThis study examined the association between employee servant leadership perceptions and their customer-oriented organisational citizenship behaviour (OCB), and the influence of perceived interactional justice in this relationship. Participants were 708 hospitality industry employees from across China (female = 66.53%; mean... -
Cinereous Vulture Aegypius monachus movements between Europe and Africa show a pattern across the Strait of Gibraltar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Juan Ramírez --- Malaga University, Spain Javier Elorriaga --- , Spain Andrés de la Cruz --- Spanish Institute of Oceanography (IEO), Spanish National Research Council (CSIC), SpainThe biology of the Cinereous Vulture Aegypius monachus is well known across its breeding range, and the species’ dispersal and movements throughout Europe are widely recorded. However, the ecology of this vulture south of the Mediterranean Sea has been overlooked,... -
Universal lines in graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Juan Alberto Rodríguez-Velázquez --- Universitat Rovira i Virgili, SpainIn a metric space M = (X, d), a line induced by two distinct points x, x′ ∈ X, denoted by , is the set of points given by -
The impact of COVID-19 on European global value chains: Some concerns about diversification and resilience
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Isabel Álvarez --- Instituto Complutense de Estudios Internacionales, Spain Antonio Biurrun --- Instituto Complutense de Estudios Internacionales, Spain Victor Martín --- Universidad Rey Juan Carlos & Instituto Complutense de Estudios Internacionales, SpainThe disruptions and supply problems caused by the COVID-19 pandemic in the European Union (EU) have raised several issues concerning the EU’s participation in Global Value Chains (GVC). One of the most discussed points in the current debate is the... -
Equivalent almost periodic functions in terms of the new property of almost equality
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Juan Matías Sepulcre --- University of Alicante, Spain Tomás Vidal --- Universidad Nacional de Educación a Distancia (UNED), SpainIn this paper we introduce the notion of almost equality (or, more specifically, almost equality by translations) of complex functions of an unrestricted real variable in terms of the new concept of ϵ-translation number of a function with respect to... -
Low self-esteem and cyberbullying perpetration among Chinese adolescents: Mediation by catharsis and moderation by sex
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xianliang Zheng --- Gannan Normal University, China Lijuan Huang --- Gannan Normal University, China Zhihua Xie --- Gannan Normal University, China Linlu Peng --- Gannan Normal University, ChinaThis study aimed to investigate the association between self-esteem and cyberbullying via the mediating role of catharsis and moderating role of sex. The sample consisted of 665 Chinese adolescents (317 girls; mean age = 14.56 years, SD = 0.96 years),... -
Nonlinear maps preserving semi-Fredholm operators with bounded nullity
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Guoxing Ji --- Shaanxi Normal University, People’s Republic of China Xia Jiao --- Shaanxi Normal University, People’s Republic of China Weijuan Shi --- Shaanxi Normal University, People’s Republic of ChinaLet be an infinite dimensional complex Banach space, and let be the algebra of all bounded linear operators on . In this paper, given any positive integer n, we provide a characterization of all bijective maps on preserving the difference... -
Double total domination in the generalized lexicographic product of graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Abel Cabrera-Martínez --- Universidad de Córdoba, Spain Ismael Ríos Villamar --- Universidad Autónoma de Guerrero, Mexico Juan M. Rueda-Vázquez --- Universidad de Córdoba, Spain José M. Sigarreta Almira --- Universidad Autónoma de Guerrero, MexicoLet G be a graph of minimum degree at least two. A set D ⊆ V(G) is said to be a double total dominating set of G if |N (v) ∩ D| ≥ 2 for every vertex v ∈ V(G)... -
Confirmed cases of Rüppell’s Vulture Gyps rueppelli breeding in Senegal: advocating systematic sampling to reassess the conservation status of the species in West Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Antonio-Román Muñoz --- Universidad de Málaga, Spain Juan Ramírez --- Universidad de Málaga, Spain Marina Guerrero --- Universidad de Málaga, Spain Francisco María Zufiaur --- , SpainVulture populations are declining across Africa and the conservation status of Rüppell’s Vulture Gyps rueppelli has changed from Near Threatened in 2007 to Critically Endangered in 2015. Its global population was estimated at 30 000 individuals in the early 1990s... -
Identification of main variables in forest management for recovery of endemic species habitat in burned areas of southern Chile
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Roberto Moreno --- Instituto de Investigación Sistema Tierra (IISTA), Universidad de Córdoba, España Ricardo Zamora --- Universidad de Córdoba, España Norman Moreno-García --- Universidad Mayor, Chile Carlos Esse --- Instituto Iberoamericano de Desarrollo Sostenible (IIDS), Universidad Autónoma de Chile, Chile Carmen Galán --- Instituto de Investigación Sistema Tierra (IISTA), Universidad de Córdoba, España Juan Ramón Molina --- Universidad de Córdoba, EspañaWildfires are among the most serious disturbances that affect forest biodiversity, damaging both flora and fauna. In some burned areas, vegetation recovery is a long and complex process that requires the support of restorative actions. This study evaluated changes in... -
Quantitative genetics and breeding strategies in hybrid populations of Pinus patula × Pinus tecunumanii
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luis Ibarra --- North Carolina State University, USA Gary Hodge --- North Carolina State University, USA Juan José Acosta --- North Carolina State University, USAForestry companies SAFCOL and Sappi conducted a study in South Africa to examine genetic variation and select improved material in full-sib hybrid families of Pinus patula × Pinus tecunumanii. The results from the study on clonal and seedling hybrid populations... -
Mothers’ perceptions of children’s emotional behaviour problems and parenting sense of competence: The mediating role of maternal meta-emotion philosophy
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mingfei Ma --- Zhejiang Sci-Tech University, China Shaoying Liu --- Zhejiang Sci-Tech University, China Qingning Xu --- Zhejiang Sci-Tech University, China Yujuan Jiang --- , ChinaWe investigated the relationship between mothers’ perceptions of their children’s emotional behaviour problems and their parenting sense of competence, as well as the mediating effect of maternal meta-emotion philosophy in this connection. Participants were 349 mothers of 4- to 17-year-old... -
Measuring South Africa destination loyalty levels through recommending and complaining framings
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Concepción Román --- Institute of Tourism and Sustainable Economic Development, Universidad de Las Palmas de Gran Canaria, Juan Carlos Martín --- Institute of Tourism and Sustainable Economic Development, Universidad de Las Palmas de Gran Canaria, Engelina du Plessis --- North-West University, South AfricaThe study aims to analyse how framing (recommending versus complaining) affects the measurement of destination loyalty. It focuses on international tourists who visited South Africa, and evaluated loyalty through the two framings. The study tests whether loyalty can be measured... -
Subjective well-being of college students: Developmental trajectories, predictors, and risk for depression
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xinqiao Liu --- Tianjin University, China Yan Li --- Tianjin University, China Wenjuan Gao --- Institute of Higher Education, Beihang University, ChinaThe study aimed to identify different developmental trajectories of subjective well-being for 2 473 college students from freshman to senior year (female = 47.15%; mean age = 19.6 years, SD = 0.894 years). We further explored the associations between categories... -
Validity and reliability of the Compassion Fatigue Short Scale among nursing interns
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Li-Juan Yi --- Hunan Traditional Chinese Medical College, China Ting Shuai --- Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, China Ya Li --- Hunan Traditional Chinese Medical College, China Guo-Hao Wang --- Tangshan Polytechnic University, China Hai-Yan Long --- Hunan Traditional Chinese Medical College, China Hang Lin --- Hunan Traditional Chinese Medical College, China Xu Tian --- Chongqing Traditional Chinese Medicine Hospital, China Maria F. Jiménez-Herrera --- Universitat Rovira i Virgili, SpainWe aimed to determine the reliability and validity of scores from the Chinese Compassion Fatigue Short Scale (CFSS) for nursing interns (n = 229; female = 88.2%, mean age = 20.34 years, SD = 0.968 years). The nursing interns completed... -
An absurdist approach to radical climate activism: Understanding responses to the climate change problem
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Juan Coetzee --- School of Philosophy, North-West University, South AfricaThe purpose of this article is to determine if we can conceptualise revolt that more appropriately approaches the climate crisis through an absurdist perspective. The intention is to apply the theory of revolt, which is found in absurdism, to the...