495 results on '"Brysiewicz, P."'
Search Results
2. Monodromy Coordinates
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Brysiewicz, Taylor
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Mathematics - Algebraic Geometry ,14Q65, 68W20, 20P99 - Abstract
We introduce the concept of monodromy coordinates for representing solutions to large polynomial systems. Representing solutions this way provides a time-memory trade-off in a monodromy solving algorithm. We describe an algorithm, which interpolates the usual monodromy solving algorithm, for computing such a representation and analyze its space and time complexity., Comment: 9 pages, 3 Figures
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- 2024
3. Solving the area-length systems in discrete gravity using homotopy continuation
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Asante, Seth K. and Brysiewicz, Taylor
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General Relativity and Quantum Cosmology ,Mathematics - Algebraic Geometry - Abstract
Area variables are intrinsic to connection formulations of general relativity, in contrast to the fundamental length variables prevalent in metric formulations. Within 4D discrete gravity, particularly based on triangulations, the area-length system establishes a relationship between area variables associated with triangles and the edge length variables. This system is comprised of polynomial equations derived from Heron's formula, which relates the area of a triangle to its edge lengths. Using tools from numerical algebraic geometry, we study the area-length systems. In particular, we show that given the ten triangular areas of a single 4-simplex, there could be up to 64 compatible sets of edge lengths. Moreover, we show that these 64 solutions do not, in general, admit formulae in terms of the areas by analyzing the Galois group, or monodromy group, of the problem. We show that by introducing additional symmetry constraints, it is possible to obtain such formulae for the edge lengths. We take the first steps toward applying our results within discrete quantum gravity, specifically for effective spin foam models., Comment: 15 pages, 9 figures, 4 tables: New Version matches published article on Class. Quant. Grav. Journal
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- 2024
4. The algebraic matroid of the Heron variety
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Asante, Seth K., Brysiewicz, Taylor, and Hatzel, Michelle
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Mathematics - Algebraic Geometry ,Mathematics - Combinatorics ,14D05 (Primary) 65H14, 51M25, 51K05 (Secondary) - Abstract
We introduce the n-th Heron variety as the realization space of the (squared) volumes of faces of an n-simplex. Our primary goal is to understand the extent to which Heron's formula, which expresses the area of a triangle as a function of its three edge lengths, can be generalized. Such a formula for one face volume of an n-simplex in terms of other face volumes expresses a dependence in the algebraic matroid of the Heron variety. Whether the volume is expressible in terms of radicals is controlled by the monodromy groups of the coordinate projections of the Heron variety onto coordinates of bases. We discuss a suite of algorithms, some new, for determining these matroids and monodromy groups. We apply these algorithms toward the smaller Heron varieties, organize our findings, and interpret the results in the context of our original motivation., Comment: 25 pages, 11 figures
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- 2024
5. Lawrence Lifts, Matroids, and Maximum Likelihood Degrees
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Brysiewicz, Taylor and Maraj, Aida
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Mathematics - Combinatorics ,Mathematics - Algebraic Geometry ,62R01 (Primary) 52B40, 14M25 (Secondary) - Abstract
We express the maximum likelihood (ML) degrees of a family toric varieties in terms of Mobius invariants of matroids. The family of interest are those parametrized by monomial maps given by Lawrence lifts of totally unimodular matrices with even circuits. Specifying these matrices to be vertex-edge incidence matrices of bipartite graphs gives the ML degrees of some hierarchical models and three dimensional quasi-independence models. Included in this list are the no-three-way interaction models with one binary random variable, for which, we give closed formulae., Comment: 23 pages, 5 figures. Comments welcome!
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- 2023
6. Quatroids and Rational Plane Cubics
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Brysiewicz, Taylor, Gesmundo, Fulvio, and Steiner, Avi
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Mathematics - Algebraic Geometry ,14N10, 14E08, 55R80, 14H50, 05B35, 14Q05 - Abstract
It is a classical result that there are $12$ (irreducible) rational cubic curves through $8$ generic points in $\mathbb{P}_{\mathbb{C}}^2$, but little is known about the non-generic cases. The space of $8$-point configurations is partitioned into strata depending on combinatorial objects we call quatroids, a higher-order version of representable matroids. We compute all $779777$ quatroids on eight distinct points in the plane, which produces a full description of the stratification. For each stratum, we generate several invariants, including the number of rational cubics through a generic configuration. As a byproduct of our investigation, we obtain a collection of results regarding the base loci of pencils of cubics and positive certificates for non-rationality., Comment: 34 pages, 11 figures, 5 tables. Comments are welcome!
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- 2023
7. Polyhedral Geometry in OSCAR
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Brysiewicz, Taylor and Joswig, Michael
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Mathematics - Combinatorics - Abstract
OSCAR is an innovative new computer algebra system which combines and extends the power of its four cornerstone systems - GAP (group theory), Singular (algebra and algebraic geometry), Polymake (polyhedral geometry), and Antic (number theory). Assuming little familiarity with the subject, we give an introduction to computations in polyhedral geometry using OSCAR, as a chapter of the upcoming OSCAR book. In particular, we define polytopes, polyhedra, and polyhedral fans, and we give a brief overview about computing convex hulls and solving linear programs. Three detailed case studies are left for experts in polyhedral geometry. These are concerned with face numbers of random polytopes, constructions and properties of Gelfand-Tsetlin polytopes, and secondary polytopes., Comment: 20 pages, 8 figures
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- 2023
8. Max-convolution through numerics and tropical geometry
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Brysiewicz, Taylor, Hauenstein, Jonathan D., and Hills, Caroline
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- 2024
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9. Divergence of zooplankton assemblages in unstable fishless and stable fish ponds
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Sługocki, Łukasz and Brysiewicz, Adam
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- 2024
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10. Max-convolution through numerics and tropical geometry
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Brysiewicz, Taylor, Hauenstein, Jonathan D., and Hills, Caroline
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Mathematics - Numerical Analysis ,65B05 (Primary) 14T90, 68Q25, 65Y20 (Secondary) - Abstract
The maximum function, on vectors of real numbers, is not differentiable. Consequently, several differentiable approximations of this function are popular substitutes. We survey three smooth functions which approximate the maximum function and analyze their convergence rates. We interpret these functions through the lens of tropical geometry, where their performance differences are geometrically salient. As an application, we provide an algorithm which computes the max-convolution of two integer vectors in quasi-linear time. We show this algorithm's power in computing adjacent sums within a vector as well as computing service curves in a network analysis application., Comment: 24 pages, 21 Figures, 2 Tables
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- 2023
11. Mapping the evidence of emergency nursing research in who Afro-region states: A Scoping Review
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Geldine Chironda, Pretty Mbeje, Tanya Heyns, and Petra Brysiewicz
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Emergency nursing ,Research ,WHO Afro-region ,Africa ,Scoping review ,Medicine ,Medicine (General) ,R5-920 - Abstract
Introduction: The introduction of emergency nursing in Africa has resulted in the establishment of several training schools across the continent. This has translated into a growing body of emergency care research being carried out by nurses; however, the breadth and extent of evidence remains unclear. The aim of the review was to map and collate the available literature on emergency nursing research in WHO Afro-region states. Methods: The review adopted the methodology of the Joanna Briggs Institute (JBI) scoping reviews. The review protocol was registered on 27 June 2022 (osf.io/5wz3x). The Population (nurse), Concept (emergency nursing research), Context (WHO Afro-region) (PCC) elements guided the development of the inclusion and exclusion criteria. Papers were searched across seven electronic data bases and two search engines using a three-search strategy. The screening was performed initially on the abstract and title and lastly on full text. The reporting for the review was guided by the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). Results: One hundred and thirteen papers were included in the review. Publication of emergency nursing research occurred from 2000 to 2022. The year 2017 and 2019 recorded the highest number of publications (n = 14). The country with the most publications was South Africa (n=50). Emergency nursing research used predominantly quantitative methodologies (n=58). The professional groups involved in research were nurses (n=69) as well as nurses and doctors (n=26). The identified papers focused primarily on emergency nursing education (n=23) and epidemiology (n=24). Conclusion: There is a notable increase in the number of publications on emergency nursing research in WHO Afro-region states, however from only 11 countries. Since most of the research is still at descriptive level, there is need to encourage emergency nursing research on interventions and measuring outcomes and impact in the emergency care system.
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- 2024
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12. Describing Zoom exhaustion and fatigue in nursing students at a university in South Africa
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Waheedha Emmamally, Dorien Wentzel, and Petra Brysiewicz
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bachelor of nursing ,zoom exhaustion and fatigue scale ,online teaching ,online learning ,cross-sectional study ,nursing students. ,Public aspects of medicine ,RA1-1270 - Abstract
Background: Online platforms have gained considerable support from students and lecturers post COVID-19, however they are associated with student exhaustion and fatigue. Aim: To determine Zoom exhaustion and fatigue in nursing students at a selected university in South Africa. Methods: A quantitative cross - sectional study was conducted in KwaZulu-Natal to collect data from 146 nursing students registered at the selected university for the 4-year Bachelor of Nursing programme. The Zoom Exhaustion and Fatigue Scale collected data on responses to domains of general fatigue, visual fatigue, social fatigue, motivational fatigue, and emotional fatigue. The data were analysed using the International Business Machines, Statistical Package for Social Sciences, version 26.0. Descriptive statistics were calculated for demographics, a total score was calculated and mean scores and 95% confidence intervals for the different domains were calculated. Mann Whitney U and Kruskal Wallis Independent Tests were calculated to determine associations between demographics and Zoom usage. Results: The overall Zoom exhaustion and fatigue score was 46.71 (s.d. = 10.50). The motivational fatigue construct had the highest mean score of 3.29 (s.d. = 0.83), followed by general (3.18 s.d. = 0.81), social (3.11, s.d. = 0.88), emotional (3.06, s.d. = 0.99) and visual fatigue (2.92, s.d. = 0.94). Conclusion: The study concluded that while the overall mean score indicated moderate levels of Zoom exhaustion and fatigue among respondents, majority of the respondents scored high levels ( 48) of Zoom fatigue. Students reported higher levels of motivational fatigue compared to the other 4 constructs.
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- 2024
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13. Annual reproductive cycle of Chinese sleeper Perccottus glenii, Dybowski, 1877 (Teleostei: Gobiiformes: Odontobutidae) an invasive fish inhabiting Central Europe
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L. Kirczuk, K. Dziewulska, P. Czerniejewski, A. Brysiewicz, J. Rechulicz, and J. Ligięza
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Chinese sleeper ,invasive species ,reproductive cycle ,ovary ,testis ,testicular gland ,Zoology ,QL1-991 - Abstract
Chinese sleeper is an invasive species from South Asia inhabiting Eastern and Central Europe. So far, no detailed analysis of the reproductive cycle of Chinese sleepers has been conducted. The aim of the study was to describe the reproductive cycle of Chinese sleepers in the Wilanówka River, Vistula tributary (Poland, Central Europe). Fish morphometric data, age, gonadal maturity, and absolute and relative fecundity of females were analysed. A standard paraffin technique and six-stage scales were used to assess the gonad development and maturation in both sexes. The age of the studied fish ranged from 0+ to 6+.The female-to-male ratio was 1:1. Females and males mature at age 1+.The smallest female and male reaching maturity were 3.8 and 3.7 cm long, respectively. An extended spawning season from the beginning of April to mid-September was determined based on gonadal maturity analysis. The mean absolute fecundity was 2,971 (180–19,656) oocytes. The male reproductive system comprises paired testis (spermatogenic region, blackish color) and paired testicular gland (secretory region, whitish color). In both regions, seasonal changes were observed. Male gonads during winter had completed spermatogenesis, and the lobules were filled with spermatozoa. Very fast spermatogenesis and overlapping of reproductive cycles have been observed in Chinese sleeper males. Almost all year round testis contains spermatozoa. In the new habitat examined, this species was characterized by earlier maturation and longer reproduction season, compared to the native habitat and other native species of the examined area. Moreover, high female fecundity, multiple spawning, and lower investment in the development of gonads in males allow maintaining vitality and protecting the nest, contribute to the species competitiveness and successful colonization of new areas.
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- 2024
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14. Sparse trace tests
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Brysiewicz, Taylor and Burr, Michael
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Mathematics - Algebraic Geometry ,Computer Science - Symbolic Computation ,65H14, 14Q65, 14M25, 68W30 - Abstract
We establish how the coefficients of a sparse polynomial system influence the sum (or the trace) of its zeros. As an application, we develop numerical tests for verifying whether a set of solutions to a sparse system is complete. These algorithms extend the classical trace test in numerical algebraic geometry. Our results rely on both the analysis of the structure of sparse resultants as well as an extension of Esterov's results on monodromy groups of sparse systems.
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- 2022
15. Computing Characteristic Polynomials of Hyperplane Arrangements with Symmetries
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Brysiewicz, Taylor, Eble, Holger, and Kühne, Lukas
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- 2023
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16. Electromagnetic interference complicating Impella® use during pediatric ablation.
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Sullivan, John S, Maitoza, Laura A, Brysiewicz, Neil R, Hall, E Kevin, and Beach, Cheyenne M
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Ablative therapy ,cardiomyopathy ,electrophysiology ,left ventricular assist device ,Heart Disease ,Pediatric ,Cardiovascular ,Medical and Health Sciences - Abstract
In children, the Impella® is most commonly used in the setting of cardiogenic shock. There are few reported cases of Impella® use in pediatric patients undergoing ablation; description of troubleshooting techniques may improve success rates. We describe a pediatric patient with tachycardia-induced cardiomyopathy due to incessant ectopic atrial tachycardia whose ablation was notable for significant electromagnetic interference (EMI) from the Impella® leading to incomplete mapping. This case highlights the need for multidisciplinary planning and consideration of possible EMI with the use of magnet-based electroanatomic mapping systems as well as troubleshooting techniques to reduce the impact of EMI.
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- 2022
17. Clinical mentorship of midwifery students: The perceptions of registered midwives
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Hafaza B. Amod, Lindani Ndlovu, and Petra Brysiewicz
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clinical mentorship ,midwifery students ,registered midwife ,qualitative research ,south africa ,clinical support ,Public aspects of medicine ,RA1-1270 - Abstract
Background: Clinical mentors are experienced practitioners who play an important role in encouraging the professional development of students in clinical areas. The responsibility of clinical mentorship in nursing is often difficult to maintain. However, there is a dire need for clinical mentorship in maternity units, especially in South African hospitals were high maternal mortality rates remain alarmingly high. Aim: This study aimed to describe the perceptions of registered midwives regarding the clinical mentorship of midwifery students. Setting: The study occurred in a semi-rural state regional hospital in the eThekwini district, KwaZulu-Natal. Methods: A qualitative exploratory and descriptive design was conducted using in-depth individual interviews with midwives in maternity units. A purposive and convenient sampling method recruited 17 registered midwives from 3 maternity care areas within a single setting. Interviews were audio-recorded and all data were analysed using qualitative content analysis. Results: Five categories emanated from this study namely, sharing knowledge and skills; encouraging role model behaviour; promoting self-worth; Is a challenging task; and requiring additional support. Conclusion: Clinical mentorship has a reciprocal effect on teaching and learning in maternity care areas and encouraged registered midwives to lead as role-models. The process demands competence, professionalism, and leading by example. Despite the confidence, satisfaction and interest in clinical mentorship, registered midwives often find the process challenged by patient care priorities. Therefore, registered midwives require additional support to mentor students in clinical practice. Contribution: This article shows that clinical mentorship places various challenges on registered midwives and formal mentorship training could be beneficial.
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- 2024
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18. Likelihood Degenerations
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Agostini, Daniele, Brysiewicz, Taylor, Fevola, Claudia, Kühne, Lukas, Sturmfels, Bernd, and Telen, Simon
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Mathematics - Algebraic Geometry ,High Energy Physics - Theory ,Mathematics - Combinatorics - Abstract
Computing all critical points of a monomial on a very affine variety is a fundamental task in algebraic statistics, particle physics and other fields. The number of critical points is known as the maximum likelihood (ML) degree. When the variety is smooth, it coincides with the Euler characteristic. We introduce degeneration techniques that are inspired by the soft limits in CEGM theory, and we answer several questions raised in the physics literature. These pertain to bounded regions in discriminantal arrangements and to moduli spaces of point configurations. We present theory and practise, connecting complex geometry, tropical combinatorics, and numerical nonlinear algebra., Comment: 33 pages, updated to reflect reviewers' comments and added link to Zenodo to certify numerical results
- Published
- 2021
19. Population structure and parasite fauna of stone moroko, Pseudorasbora parva (Temminck et Schlegel, 1846) in a watercourse of the Oder catchment area (‘Central Plains’ European Ecoregion)
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P. Czerniejewski, A. Brysiewicz, I. Rząd, P. Eljasik, L. Kirczuk, and K. Dziewulska
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Topmouth gudgeon ,invasive species ,sex ,length ,age structure ,Fulton’s condition factor ,Zoology ,QL1-991 - Abstract
AbstractThe stone moroko (Pseudorasbora parva) is an invasive species which spreads rapidly in European water bodies and occupies free ecological niches. In the years 2019–2020, monthly analyses of its population structure were carried out in the Wardynka River (western Poland), determining the age, size (TL and SL), body weight, growth, Fulton’s condition factor, and the parameters of the length–weight relationship. In addition, quantitative descriptions of the parasite communities were made. End-point PCR was used to verify the presence of Sphaerothecum destruens in the fish. The age structure of the population was dominated by fish at the age of 1+ to 3+, and the maximum age was 5 + . The TL of the fish ranged from 2.50 to 10.60 cm (average 6.24 cm), SL from 2.10 to 9.50 cm (average 5.20 cm), and body weight from 0.15 to 11.43 g (average 2.74 g). The average body weight and length of males were higher than in females. The average Fulton’s condition factor for the whole sample was 1.44 ± 0.24 and was similar for both sexes. The slope of the regression line (b > 3) indicates an allometric relationship between the length and weight of fish of both sexes. Back-calculated estimates of standard length fitted the von Bertalanffy growth function, although Taylor’s criterion showed that the asymptotic length (Linf) was overestimated. Comparison of the von Bertalanffy growth function parameters revealed differences between sexes. The presence of parasites not previously recorded in stone moroko in Poland was confirmed: Dactylogyrus squameus, Phyllodistomum elongatum, P. folium, Posthodiplostomum cuticola (metacercaria), and Bivalvia gen. sp. (glochidia). Electrophoresis of the end-point PCR product did not reveal any signs of amplification for either of the primer sets used. S. destruens was not detected in any of the analysed samples of stone moroko.
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- 2023
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20. Run-off modelling of pervious and impervious areas using couple SWAT and a novel machine learning model in cross-rivers state Nigeria
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Badiya Salele, Yakubu Aminu Dodo, Dalhatu Aliyu Sani, Mohammed Awad Abuhussain, Barno Sayfutdinovna Abdullaeva, and Adam Brysiewicz
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flood ,gis ,machine learning ,remote sensing ,sdg 13 ,soil water assessment tool ,Environmental technology. Sanitary engineering ,TD1-1066 - Abstract
Using the soil and water assessment tool (SWAT), runoff in pervious and impervious urban areas was simulated in this study. In the meantime, as a novel application of machine learning, the emotional artificial neural network (EANN) model was employed to enhance the SWAT obtained for this study. As a result of the EANN model's capabilities in rainfall–runoff phenomena, the SWAT-EANN couple model has been used to assess urban flooding. The pervious, impervious, and water body areas of the study area were classified and mapped to estimate the cover change over three epochs. Land use map, precipitation data, temperature (minimum and maximum) data, wind speed, relative humidity, soil map, solar radiation, and digital elevation model were used as inputs for modelling rainfall–runoff of the study area in the ArcGIS environment. The accuracy assessment of this study was excellent (root-mean-square error 1 mm of precipitation). It also revealed that (a) a land use map illustrating changes in impervious, pervious surface, and water body for 1998, 2008, and 2018; (b) runoff modelling using a historical pattern of rainfall–runoff changes (1998–2018); and (c) descriptive statistical analysis of the runoff results of the research. This research will aid in urban planning, administration, and development. Specifically, it will prevent flooding and environmental problems. HIGHLIGHT This study complimented others on exploring rainfall–runoff modelling of pervious and impervious areas in Cross River State, Nigeria. In this study, the run-up modelling using the soil and water assessment tool model, and geographical information system/remote sensing systems were utilized to extract details of the land cover and to analyse the rainfall–runoff using logistic regression and other descriptive statistical analysis.;
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- 2023
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21. Tracking the Trauma Epidemic in KwaZulu-Natal, South Africa
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Tefera, Aida, Lutge, Elizabeth Eleanor, Moodley, Nirvasha, Xaba, Xolani Wiseman, Hardcastle, Timothy Craig, Brysiewicz, Petra, and Clarke, Damian Luiz
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- 2023
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22. An Analysis of Hydromorphological Index for Rivers (HIR) Model Components, Based on a Hydromorphological Assessment of Watercourses in the Central European Plain
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Garbowski, Tomasz, Brysiewicz, Adam, Nosek, Justyna, Bar-Michalczyk, Dominika, and Czerniejewski, Przemysław
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- 2023
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23. Computing characteristic polynomials of hyperplane arrangements with symmetries
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Brysiewicz, Taylor, Eble, Holger, and Kühne, Lukas
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Mathematics - Combinatorics ,52C35, 52B15 ,G.2.1 - Abstract
We introduce a new algorithm computing the characteristic polynomials of hyperplane arrangements which exploits their underlying symmetry groups. Our algorithm counts the chambers of an arrangement as a byproduct of computing its characteristic polynomial. We showcase our julia implementation, based on OSCAR, on examples coming from hyperplane arrangements with applications to physics and computer science., Comment: 21 pages, 6 figures, 8 tables, 1 appendix. Updated version based on referee reports
- Published
- 2021
24. Does fish stocking rate affect the photosynthesis of Lactuca sativa grown in an aquaponic system?
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Zuzanna Malwina Jaszczuk, Adam Brysiewicz, Agnieszka Kozioł, Alicja Auriga, Marian Brestic, and Hazem M. Kalaji
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aquaponics ,chlorophyll fluorescence ,common carp ,lettuce ,plant production ,River, lake, and water-supply engineering (General) ,TC401-506 ,Irrigation engineering. Reclamation of wasteland. Drainage ,TC801-978 - Abstract
The depletion of natural resources such as freshwater and cropland makes it necessary to find a new solution for sustainable food production. Aquaponic systems seem to be a great alternative to traditional agriculture, however, there are still many unknowns that need to be explored. It is already known how fish stocking affects water quality in aquaponic systems, but not how it affects the plants’ growth, and especially on chlorophyll fluorescence. In this study, we examined how the density of 0, 2, 4, 8, and 16 stocking fish in five aquaria affects lettuce growth. The first tank was only a hydroponic system with plants but without fish (control). In the remaining four aquaria – 2, 4, 8 and 12 specimens of common carp fry with an average weight of 20 grams (average 8.5–33.2 g) were placed in the aquaponic growing system. Physicochemical analysis of water was conducted to determine the levels of pH, electrical conductivity ( EC), N-NO 3, N-NO 2, N-NH 4, P-PO 4, O 2 and physiological parameters of plants (nitrogen balance index – NBI, chlorophyll content index – CCI, quantum yield – QY, flavonoid content – Flv) were analysed. The results showed that fish stocking density has different effects on plant physiological parameters, but in most cases, was insignificant. It seems that the greater number of fishes and higher density indirectly causes growth inhibition (lower photosynthetic efficiency) due to the increase of N-NO 3 and a decrease of O 2 in the water.
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- 2023
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25. Obtaining feedback from patients and their family in the emergency department
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Yemisi Okikiade Oyegbile and Petra Brysiewicz
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Patient experience ,Family experience ,Care experience ,Patient satisfaction ,Family satisfaction ,Emergency department ,Medicine ,Medicine (General) ,R5-920 - Abstract
Obtaining feedback from the patient and their family members regarding their experience of the care they received in the emergency department is important. This provides an extremely valuable opportunity for healthcare professionals to assess the quality of care and serves to highlight any areas of weakness or strength in the care experience. Through a synthesis of available literature, this article describes the challenges in measuring such an experience especially in emergency departments in Africa, and outlines tools that are currently available in literature to measure the patient and family experience and or satisfaction. Implementation considerations are outlined in order to provide recommendations for emergency department healthcare professionals wanting to undertake such assessments.
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- 2023
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26. Student nurse perceptions of family nursing practices in South Africa: A descriptive survey
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Geldine Chironda and Petra Brysiewicz
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nursing perceptions ,family nursing ,family-nursing relationships ,student nurses ,south africa ,Public aspects of medicine ,RA1-1270 - Abstract
Background: Family nursing practices (FNPs) are gaining momentum in global literature, but the available research has targeted qualified nursing professionals. There are limited studies exploring this phenomenon in undergraduate student nurses in South Africa. Aim: The study aimed at exploring the undergraduate student nurse perceptions of FNPs. Setting: The study was conducted at a selected university in KwaZulu-Natal, South Africa. Methods: A descriptive survey design was used to purposively select undergraduate nursing students. The Family Nursing Practice Scale (FNPS) was used to collect data online. Descriptive and inferential statistics were used to analyse quantitative data. Open ended questions were analysed using content analysis. Results: Out of 154 participants, 77 responded to the questionnaire, translating to a response rate of 50%. Compared with other studies in literature, student nurses rated their overall FNP as being low (M = 3.43, s.d. = 0.99). A further descriptive analysis revealed better FNPs (2.97) for 3rd year compared to 2nd year (3.90) nursing students with significance differences in the means (p 0.0001). While family conflict, maintaining confidentiality, ill prepared and absent family were challenges experienced in FNP, advantages included obtaining detailed information, ability to plan individualised care and enhanced student nurse-family relationship. Conclusion: A lower critical practice appraisal and lower perceptions of interaction and reciprocity in the nurse-family relationship were identified. There is need for an inclusive curriculum that promotes and advocates for family nursing within the undergraduate programme. Contribution: This study highlights the importance of teaching family nursing to undergraduate student nurses.
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- 2024
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27. Nodes on quintic spectrahedra
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Brysiewicz, Taylor, Kozhasov, Khazhgali, and Kummer, Mario
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Mathematics - Algebraic Geometry ,Mathematics - Numerical Analysis ,Mathematics - Optimization and Control - Abstract
We classify transversal quintic spectrahedra by the location of 20 nodes on the respective real determinantal surface of degree 5. We identify 65 classes of such surfaces and find an explicit representative in each of them.
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- 2020
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28. Tangent Quadrics in Real 3-Space
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Brysiewicz, Taylor, Fevola, Claudia, and Sturmfels, Bernd
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Mathematics - Algebraic Geometry ,Computer Science - Computational Geometry - Abstract
We examine quadratic surfaces in 3-space that are tangent to nine given figures. These figures can be points, lines, planes or quadrics. The numbers of tangent quadrics were determined by Hermann Schubert in 1879. We study the associated systems of polynomial equations, also in the space of complete quadrics, and we solve them using certified numerical methods. Our aim is to show that Schubert's problems are fully real., Comment: 13 pages
- Published
- 2020
29. Decomposable sparse polynomial systems
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Brysiewicz, Taylor, Rodriguez, Jose Israel, Sottile, Frank, and Yahl, Thomas
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Mathematics - Algebraic Geometry ,Computer Science - Symbolic Computation ,Mathematics - Numerical Analysis ,14M25, 65H10, 65H20 - Abstract
The Macaulay2 package DecomposableSparseSystems implements methods for studying and numerically solving decomposable sparse polynomial systems. We describe the structure of decomposable sparse systems and explain how the methods in this package may be used to exploit this structure, with examples., Comment: 7 pages, software available at https://www.math.tamu.edu/~thomasjyahl/research/DSS/DSSsite.html
- Published
- 2020
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30. Newton polytopes and numerical algebraic geometry
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Brysiewicz, Taylor
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Mathematics - Algebraic Geometry ,14M25, 65H10, 65H20 - Abstract
We develop a collection of numerical algorithms which connect ideas from polyhedral geometry and algebraic geometry. The first algorithm we develop functions as a numerical oracle for the Newton polytope of a hypersurface and is based on ideas of Hauenstein and Sottile. Additionally, we construct a numerical tropical membership algorithm which uses the former algorithm as a subroutine. Based on recent results of Esterov, we give an algorithm which recursively solves a sparse polynomial system when the support of that system is either lacunary or triangular. Prior to explaining these results, we give necessary background on polytopes, algebraic geometry, monodromy groups of branched covers, and numerical algebraic geometry., Comment: 150 pages, 65 figures, contains content from arXiv:1811.12279 and arXiv:2001.04228
- Published
- 2020
31. Solving Decomposable Sparse Systems
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Brysiewicz, Taylor, Rodriguez, Jose Israel, Sottile, Frank, and Yahl, Thomas
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Mathematics - Algebraic Geometry ,Mathematics - Numerical Analysis ,14M25, 65H10, 65H20 - Abstract
Amendola et al. proposed a method for solving systems of polynomial equations lying in a family which exploits a recursive decomposition into smaller systems. A family of systems admits such a decomposition if and only if the corresponding Galois group is imprimitive. When the Galois group is imprimitive we consider the problem of computing an explicit decomposition. A consequence of Esterov's classification of sparse polynomial systems with imprimitive Galois groups is that this decomposition is obtained by inspection. This leads to a recursive algorithm to solve decomposable sparse systems, which we present and give evidence for its efficiency., Comment: 20 pages
- Published
- 2020
32. An intervention to manage compassion fatigue in oncology nurses in Durban, South Africa
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Dorien L. Wentzel, Anthony Collins, and Petra Brysiewicz
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compassion fatigue ,compassion satisfaction ,oncology nurses ,self-care ,intervention ,Public aspects of medicine ,RA1-1270 - Abstract
Background: Oncology nurses are involved through the often protracted and potentially traumatic continuum of diagnosis and treatment of their patients, which places them at high risk of developing compassion fatigue. Aim: The aim of the study was to develop and implement an in-facility intervention to manage compassion fatigue among oncology nurses in Durban, South Africa. Setting: The study was conducted with oncology nurses at state, private (private health insurance) and non-governmental oncology facilities (Hospice). Methods: The Self-Care Intervention for Oncology Nurses was developed and implemented using action research with a mixed methods sequential explanatory design. It involved an integrative review, Professional Quality of Life (ProQOL) v 5 questionnaires (n = 83) and in-depth individual interviews (n = 8). Results: Developed from the findings of the integrative review, quantitative and qualitative data, the Self-Care Intervention for Oncology Nurses comprised three components, namely psycho-education on risks (booklet), practices of remembrance (remembrance tree) and support structures (support group and follow-up family call). Overall, the participants enjoyed reading the booklet and engaging in the support group. There were varied responses to the remembrance tree and hesitancy to partaking in the follow-up phone call. Conclusion: The developed intervention could encourage awareness of compassion fatigue amongst oncology nurses’ engagement in self-care practices such as symbolic remembrance of patients and recognition of the value of support structures. Contribution: The intervention may assist oncology nurses in the provision of compassionate caring for their patients and potentially minimise compassion fatigue.
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- 2023
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33. The Degree of Stiefel Manifolds
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Brysiewicz, Taylor and Gesmundo, Fulvio
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Mathematics - Algebraic Geometry ,Mathematics - Representation Theory ,14M17, 05A10, 52B20, 15B10 - Abstract
We compute the degree of Stiefel manifolds, that is, the variety of orthonormal frames in a finite dimensional vector space. Our approach employs techniques from classical algebraic geometry, algebraic combinatorics, and classical invariant theory., Comment: 24 pages, Final version accepted in ECA
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- 2019
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34. Numerical Software to Compute Newton Polytopes and Tropical Membership
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Brysiewicz, Taylor
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Mathematics - Algebraic Geometry ,14M25 - Abstract
We present our implementation of an algorithm which functions as a numerical oracle for the Newton polytope of a hypersurface in the Macaulay2 package NumericalNP.m2. We propose a tropical membership test, relying on this algorithm, for higher codimension varieties based on ideas from Hept and Theobald. To showcase this software, we investigate the Newton polytope of both a hypersurface coming from algebraic vision and the Luroth invariant., Comment: 16 pages, 5 figures
- Published
- 2018
35. Necklaces count polynomial parametric osculants
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Brysiewicz, Taylor
- Subjects
Mathematics - Algebraic Geometry ,14N10 (Primary) 65D05, 65H20 (Secondary) - Abstract
We consider the problem of geometrically approximating a complex analytic curve in the plane by the image of a polynomial parametrization $t \mapsto (x_1(t),x_2(t))$ of bidegree $(d_1,d_2)$. We show the number of such curves is the number of primitive necklaces on $d_1$ white beads and $d_2$ black beads. We show that this number is odd when $d_1=d_2$ is squarefree and use this to give a partial solution to a conjecture by Rababah. Our results naturally extend to a generalization regarding hypersurfaces in higher dimensions. There, the number of parametrized curves of multidegree $(d_1,\ldots,d_n)$ which optimally osculate a given hypersurface are counted by the number of primitive necklaces with $d_i$ beads of color $i$.
- Published
- 2018
36. Barriers and enablers to scholarship for post basic nursing students in clinical service
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Jean-Paul Almaze, Waheedha Emmamally, and Petra Brysiewicz
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clinical scholarship ,scholarship ,clinical nurse ,student nurse ,clinical setting. ,Nursing ,RT1-120 - Abstract
Background: Clinical scholarship is defined as an approach that enables evidence-based nursing and the development of best practices to meet the needs of clients efficiently and effectively. However, there are many barriers that impede its progress. Objective: This study aimed to identify the barriers and enablers to scholarship for post basic nursing students in clinical service areas. Method: This multimethods study used a structured questionnaire followed by semi-structured individual interviews of post basic nursing students and their lecturers (nurse educators). Results: The 81 students who completed the questionnaire indicated a lack of support or funding assistance and mentoring, as well as no mechanisms to reward or recognise scholarship as top barriers to clinical scholarship. Top enablers were noticed as reward mechanisms in place, more protected time and availability of role models and mentoring. Twelve respondents engaged in the qualitative phase and three categories emerged from the data, namely (1) resource dependent, (2) ‘what’s the use of research’, (3) making a change. Conclusion: It has been shown that there is a need to adopt and promote a culture of clinical scholarship to ensure that the best available evidence is being utilised by nurses to effectively manage their patients; however, to support clinical scholarship, resources are needed. Contribution: This study highlighted the lack of funding and resources as being a major barrier to scholarship, together with an institutional culture that did not promote clinical scholarship. Providing protected time, mentoring and criteria for promotion and reward based on scholarship is viewed as enabling.
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- 2023
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- View/download PDF
37. A Novel Framework for Urban Flood damage Assessment
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Yavari, Fatemeh, Salehi Neyshabouri, Seyyed Ali, Yazdi, Jafar, Molajou, Amir, and Brysiewicz, Adam
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- 2022
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38. The degree of $\text{SO}(n)$
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Brandt, Madeline, Bruce, DJ, Brysiewicz, Taylor, Krone, Robert, and Robeva, Elina
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Mathematics - Algebraic Geometry ,14L35 - Abstract
We provide a closed formula for the degree of $\text{SO}(n)$ over an algebraically closed field of characteristic zero. In addition, we describe symbolic and numerical techniques which can also be used to compute the degree of $\text{SO}(n)$ for small values of $n$. As an application of our results, we give a formula for the number of critical points of a low-rank semidefinite programming optimization problem. Finally, we provide some evidence for a conjecture regarding the real locus of $\text{SO}(n)$., Comment: 21 pages, 3 figures
- Published
- 2017
39. Supervision on Social Media: Use and Perception of Facebook as a Research Education Tool in Disadvantaged Areas
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Pimmer, Christoph, Chipps, Jennifer, Brysiewicz, Petra, Walters, Fiona, Linxen, Sebastian, and Gröhbiel, Urs
- Abstract
This exploratory study investigates how a typically disadvantaged user group of older, female learners from rural, low-tech settings used and perceived a Facebook group as a research supervision and distance learning tool over time. The within-stage mixed-model research was carried out in a module of a part-time, advanced midwifery education course in rural South Africa. To address the research questions, three quantitative and qualitative surveys were repeated, pre, post, and three months post evaluation. The findings indicate that using the social media space lowered learners' threshold to accessing educational resources. The increased ease of communication was afforded in particular by using mobile phones to access the space. The analysis also suggests that the social networking site became a more integral part of students' learning environments. The learners' use of the site to discuss further course and work-related issues increased during the intervention and also remained significantly higher in the three-month, post evaluation survey, indicating the routinisation and habitualisation of this learning space. The practical implications and constraints of using social networking spaces to enhance disadvantaged groups of learners' access to educational resources are discussed.
- Published
- 2016
40. Examining the uptake of COVID-19 vaccine booster doses among healthcare workers in South Africa: A mixed-methods study.
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Gavin George, Phiwe Nota, Michael Strauss, Emma Lansdell, Remco P H Peters, Petra Brysiewicz, Nisha Nadesan-Reddy, and Douglas Wassenaar
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Public aspects of medicine ,RA1-1270 - Abstract
This study aimed examin the factors associated with the uptake and non-acceptance of COVID-19 vaccine booster doses among healthcare workers (HCWs) in South Africa. We used a mixed-methods design with data from a web-based self-administered survey followed by semi-structured in-depth interviews (IDIs) with selected participants. Of the 6235 HCWs included in our analysis who had fully vaccinated, 3470 (56%) had taken their booster dose with a further 17% intending to get the booster. HCWs aged 35 to 49 years (OR = 1.30 [95% CI: 1.15-1.46]), and those aged 50 years or older (OR = 2.66 [95% CI: 2.32-3.05]) were more likely to get the booster dose. Females were less likely to have received the booster dose (OR = 0.88 [95% CI: 0.79-0.98]) with doctors more likely (OR = 1.58 [95% CI: 1.35-1.84]) than Nurses to have received the booster dose. HCWs in direct contact with patients (OR = 1.17 [95% CI: 1.00-1.38]) and who had previously received a flu vaccine (OR = 1.99 [95% CI: 1.56-2.55]) were more likely to have received the booster dose. Four themes emerged from the qualitative data analysis: (1) Vaccination as routine practice among HCWs; (2) Emergence of new COVID-19 variants necessitating vaccine boosters; (3) Fear of potential side-effects; and (4) Limited value of COVID-19 vaccine boosters. Some HCWs broadly accepted the value of vaccination, and believed that boosters were necessary to effectively combat emergent new virus strains, which contrasted with peers who believed that boosters offered little defence against virus mutations. Fear prohibited some HCWs from getting the booster, with some having experienced adverse side effects from their initial vaccination, whilst others were concerned about future complications. Waning booster uptake rates could be arrested through invigorated communication strategies, while effective evidence-based training can potentially create positive normative vaccination practices amongst HCWs.
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- 2023
- Full Text
- View/download PDF
41. Machine Learning Approaches for Forecasting the Best Microbial Strains to Alleviate Drought Impact in Agriculture
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Tymoteusz Miller, Grzegorz Mikiciuk, Anna Kisiel, Małgorzata Mikiciuk, Dominika Paliwoda, Lidia Sas-Paszt, Danuta Cembrowska-Lech, Adrianna Krzemińska, Agnieszka Kozioł, and Adam Brysiewicz
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machine learning ,predictive analytics ,soil microbiome ,climate resilience ,crop yield enhancement ,SVM ,Agriculture (General) ,S1-972 - Abstract
Drought conditions pose significant challenges to sustainable agriculture and food security. Identifying microbial strains that can mitigate drought effects is crucial to enhance crop resilience and productivity. This study presents a comprehensive comparison of several machine learning models, including Random Forest, Decision Tree, XGBoost, Support Vector Machine (SVM), and Artificial Neural Network (ANN), to predict optimal microbial strains for this purpose. Models were assessed on multiple metrics, such as accuracy, standard deviation of results, gains, total computation time, and training time per 1000 rows of data. Notably, the Gradient Boosted Trees model outperformed others in accuracy but required extensive computational resources. This underscores the balance between accuracy and computational efficiency in machine learning applications. Leveraging machine learning for selecting microbial strains signifies a leap beyond traditional methods, offering improved efficiency and efficacy. These insights hold profound implications for agriculture, especially concerning drought mitigation, thus furthering the cause of sustainable agriculture and ensuring food security.
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- 2023
- Full Text
- View/download PDF
42. Facilitating the development of emergency nursing in Africa: Operational challenges and successes
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Petra Brysiewicz, Tricia Scott, Emmanuel Acheampong, and Ivy Muya
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Emergency nursing ,Africa ,Professional development ,Medicine ,Medicine (General) ,R5-920 - Abstract
The World Health Assembly declared 2020 as the ‘Year of the Nurse and the Midwife’ in recognition of the critical contribution of both professions to global health. Nurses globally are having to do more with less and in the already resource deficient African context, significant adaptation and leadership is required in the way emergency nurses work if they are to be effective in reducing mortality and morbidity within emergency populations. In 2011, an emergency nursing group, representing the largest group of nurses in Africa, swiftly engaged with this process by publishing the document ‘Developing a framework for emergency nursing practice in Africa’ (2012). From this document a strategic plan was devised within a tight timeframe, to operationalise the quest for enhanced emergency nursing in Africa. The purpose of this paper is to describe this development of emergency nursing in Africa and to explain the operational challenges and successes, as well as the lessons learnt in order to assist with future planning.
- Published
- 2021
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- View/download PDF
43. Outcomes of a Climate Change Workshop at the 2020 African Conference on Emergency Medicine
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Caitlin Rublee, Corey Bills, Elzarie Theron, Petra Brysiewicz, Swasthi Singh, Ivy Muya, Wayne Smith, On-Emore Akpevwe, Lawan Abdulrazaq Ali, Enoch Dauda, and Emilie Calvello Hynes
- Subjects
Climate change ,Disasters ,Education ,Research ,Policy ,Climate-smart healthcare ,Medicine ,Medicine (General) ,R5-920 - Abstract
A changing climate will have demonstrable effects on health and healthcare systems, with specific and disproportionate effects on communities in Africa. Emergency care systems and providers have an opportunity to be at the forefront of efforts to combat the worst health effects from climate change. The 2020 African Conference on Emergency Medicine, under the auspices of the African Federation for Emergency Medicine, convened its first ever workshop on the topic of climate change and human health. Structured as a full day virtual course, the didactic sections were available for both live and asynchronous learning with more than 100 participants enrolled in the course. The workshop introduced the topic of the health effects of climate as they relate to emergency care in Africa and provided a forum to discuss ideas regarding the way forward. Lectures and focused discussions addressed three broad themes related to: health impacts, health care delivery, and advocacy. To our knowledge, this is the first workshop for health professionals to cover topics specific to emergency care, climate change, and health in Africa. The results of this workshop will help to guide future efforts aimed at advancing emergency care approaches in Africa with regard to medical education, research, and policy. African relevance: • Climate-related extreme weather events are adversely affecting health and health care delivery in African countries. • African organisations, cities, and nations have taken positive steps to adapt and build climate resilience. • There are opportunities for emergency care professionals and scholars to continue to expand, and lead, climate and health education, research, and policy initiatives on the continent.
- Published
- 2021
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- View/download PDF
44. Solving decomposable sparse systems
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Brysiewicz, Taylor, Rodriguez, Jose Israel, Sottile, Frank, and Yahl, Thomas
- Published
- 2021
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45. Shell morphology, growth and longevity of Unio tumidus (Bivalvia: Unionidae) from an archaeological site and contemporary population inhabiting the Oder estuary
- Author
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Czerniejewski, Przemysław, Dąbrowski, Jarosław, Wawrzyniak, Wawrzyniec, Brysiewicz, Adam, and Surma, Orina
- Published
- 2021
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46. Electromagnetic interference complicating Impella® use during pediatric ablation
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John S Sullivan, Laura A Maitoza, Neil R Brysiewicz, E Kevin Hall, and Cheyenne M Beach
- Subjects
ablative therapy ,cardiomyopathy ,electrophysiology ,left ventricular assist device ,Medicine ,Pediatrics ,RJ1-570 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
In children, the Impella® is most commonly used in the setting of cardiogenic shock. There are few reported cases of Impella® use in pediatric patients undergoing ablation; description of troubleshooting techniques may improve success rates. We describe a pediatric patient with tachycardia-induced cardiomyopathy due to incessant ectopic atrial tachycardia whose ablation was notable for significant electromagnetic interference (EMI) from the Impella® leading to incomplete mapping. This case highlights the need for multidisciplinary planning and consideration of possible EMI with the use of magnet-based electroanatomic mapping systems as well as troubleshooting techniques to reduce the impact of EMI.
- Published
- 2022
- Full Text
- View/download PDF
47. Determination of morpho-physiological and yield traits of maize inbred lines (Zea mays L.) under optimal and drought stress conditions
- Author
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Maha G. Balbaa, Hassan T. Osman, Essam E. Kandil, Talha Javed, Sobhi F. Lamlom, Hayssam M. Ali, Hazem M. Kalaji, Jacek Wróbel, Arkadiusz Telesiñski, Adam Brysiewicz, Rehab Y. Ghareeb, Nader R. Abdelsalam, and Ahmed M. Abdelghany
- Subjects
maize ,inbred lines ,principal component analysis ,drought tolerance index (DTI) ,morpho-physiological ,yield traits ,Plant culture ,SB1-1110 - Abstract
Globally, climate change could hinder future food security that concurrently implies the importance of investigating drought stress and genotype screening under stressed environments. Hence, the current study was performed to screen 45 diverse maize inbred lines for 18 studied traits comprising phenological, physiological, morphological, and yield characters under optimum and water stress conditions for two successive growing seasons (2018 and 2019). The results showed that growing seasons and water regimes significantly influenced (p < 0.01) most of the studied traits, while inbred lines had a significant effect (p < 0.01) on all of the studied traits. The findings also showed a significant increase in all studied characters under normal conditions compared to drought conditions, except chlorophyll content, transpiration rate, and proline content which exhibited higher levels under water stress conditions. Furthermore, the results of the principal component analysis indicated a notable distinction between the performance of the 45 maize inbred lines under normal and drought conditions. In terms of grain yield, the drought tolerance index (DTI) showed that Nub60 (1.56), followed by Nub32 (1.46), Nub66 (1.45), and GZ603 (1.44) were the highest drought-tolerant inbred lines, whereas Nub46 (0.38) was the lowest drought-tolerant inbred line. These drought-tolerant inbred lines were able to maintain a relatively high grain yield under normal and stress conditions, whereas those drought-sensitive inbred lines showed a decline in grain yield when exposed to drought conditions. The hierarchical clustering analysis based on DTI classified the forty-five maize inbred lines and eighteen measured traits into three column- and row-clusters, as inbred lines in cluster-3 followed by those in cluster-2 exhibited greater drought tolerance in most of the studied traits. Utilizing the multi-trait stability index (MTSI) criterion in this study identified nine inbred lines, including GZ603, as stable genotypes in terms of the eighteen studied traits across four environments. The findings of the current investigation motivate plant breeders to explore the genetic potential of the current maize germplasm, especially in water-stressed environments.
- Published
- 2022
- Full Text
- View/download PDF
48. Hydrogen Sulfide and Silicon Together Alleviate Chromium (VI) Toxicity by Modulating Morpho-Physiological and Key Antioxidant Defense Systems in Chickpea (Cicer arietinum L.) Varieties
- Author
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Deepti Singh, Chandan Kumar Singh, Manzer H. Siddiqui, Saud Alamri, Susheel Kumar Sarkar, Abhishek Rathore, Saroj Kumar Prasad, Dharmendra Singh, Nathi Lal Sharma, Hazem M. Kalaji, and Adam Brysiewicz
- Subjects
chromium ,hydrogen sulfide ,silicon ,oxidative damage ,antioxidants activities ,ascorbic acid ,Plant culture ,SB1-1110 - Abstract
Extensive use of chromium (Cr) in anthropogenic activities leads to Cr toxicity in plants causing serious threat to the environment. Cr toxicity impairs plant growth, development, and metabolism. In the present study, we explored the effect of NaHS [a hydrogen sulfide; (H2S), donor] and silicon (Si), alone or in combination, on two chickpea (Cicer arietinum) varieties (Pusa 2085 and Pusa Green 112), in pot conditions under Cr stress. Cr stress increased accumulation of Cr reduction of the plasma membrane (PM) H+-ATPase activity and decreased in photosynthetic pigments, essential minerals, relative water contents (RWC), and enzymatic and non-enzymatic antioxidants in both the varieties. Exogenous application of NaHS and Si on plants exposed to Cr stress mitigated the effect of Cr and enhanced the physiological and biochemical parameters by reducing Cr accumulation and oxidative stress in roots and leaves. The interactive effects of NaHS and Si showed a highly significant and positive correlation with PM H+-ATPase activity, photosynthetic pigments, essential minerals, RWC, proline content, and enzymatic antioxidant activities (catalase, peroxidase, ascorbate peroxidase, dehydroascorbate reductase, superoxide dismutase, and monodehydroascorbate reductase). A similar trend was observed for non-enzymatic antioxidant activities (ascorbic acid, glutathione, oxidized glutathione, and dehydroascorbic acid level) in leaves while oxidative damage in roots and leaves showed a negative correlation. Exogenous application of NaHS + Si could enhance Cr stress tolerance in chickpea and field studies are warranted for assessing crop yield under Cr-affected area.
- Published
- 2022
- Full Text
- View/download PDF
49. Optimal Design and Feature Selection by Genetic Algorithm for Emotional Artificial Neural Network (EANN) in Rainfall-Runoff Modeling
- Author
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Molajou, Amir, Nourani, Vahid, Afshar, Abbas, Khosravi, Mina, and Brysiewicz, Adam
- Published
- 2021
- Full Text
- View/download PDF
50. Mapping the evidence of emergency nursing research in who Afro-region states: A Scoping Review.
- Author
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Chironda, Geldine, Mbeje, Pretty, Heyns, Tanya, and Brysiewicz, Petra
- Abstract
The introduction of emergency nursing in Africa has resulted in the establishment of several training schools across the continent. This has translated into a growing body of emergency care research being carried out by nurses; however, the breadth and extent of evidence remains unclear. The aim of the review was to map and collate the available literature on emergency nursing research in WHO Afro-region states. The review adopted the methodology of the Joanna Briggs Institute (JBI) scoping reviews. The review protocol was registered on 27 June 2022 (osf.io/5wz3x). The Population (nurse), Concept (emergency nursing research), Context (WHO Afro-region) (PCC) elements guided the development of the inclusion and exclusion criteria. Papers were searched across seven electronic data bases and two search engines using a three-search strategy. The screening was performed initially on the abstract and title and lastly on full text. The reporting for the review was guided by the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). One hundred and thirteen papers were included in the review. Publication of emergency nursing research occurred from 2000 to 2022. The year 2017 and 2019 recorded the highest number of publications (n = 14). The country with the most publications was South Africa (n=50). Emergency nursing research used predominantly quantitative methodologies (n=58). The professional groups involved in research were nurses (n=69) as well as nurses and doctors (n=26). The identified papers focused primarily on emergency nursing education (n=23) and epidemiology (n=24). There is a notable increase in the number of publications on emergency nursing research in WHO Afro-region states, however from only 11 countries. Since most of the research is still at descriptive level, there is need to encourage emergency nursing research on interventions and measuring outcomes and impact in the emergency care system. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
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