scholarly journals Reflections on almost a century of hydrological studies on Africa's largest lake

2021 ◽  
Vol 384 ◽  
pp. 141-147
Author(s):  
Kevin Sene ◽  
Helen Houghton Carr ◽  
Wlodek Tych
Keyword(s):  
Water Balance ◽  
Lake Victoria ◽  
Research Priorities ◽  
Future Research ◽  
Monitoring Networks ◽  
Local Climate ◽  
Seasonal Flow ◽  
Research Programmes ◽  
Sub Saharan ◽  
White Nile

Abstract. Lake Victoria is the largest lake in Africa and its outflows strongly influence flows in the White Nile, including the availability of water for hydropower generation, irrigation and water supply. Understanding the water balance is a major challenge since the lake is large enough to influence the local climate and its catchment spans several countries. Hydrometeorological monitoring networks are also sparse in some parts of the basin. In this paper, we consider the history of water balance estimates for the lake and how the science has developed as new information and techniques have become available, including in areas such as seasonal flow forecasting and estimating the potential impacts of dam operations and climate change. These findings are placed into a wider context including the challenges arising from a changing climate and evolving ideas from international research programmes, which lead to some suggestions for future research priorities for Lake Victoria and other sub-Saharan/Rift Valley lakes.

scholarly journals Exploratory studies into seasonal flow forecasting potential for large lakes

2018 ◽  
Vol 22 (1) ◽  
pp. 127-141 ◽  
Author(s):  
Kevin Sene ◽  
Wlodek Tych ◽  
Keith Beven
Keyword(s):  
Water Balance ◽  
Lake Victoria ◽  
Spatial Scales ◽  
Data Availability ◽  
Climate Indices ◽  
Test Case ◽  
Large Lakes ◽  
Analytical Approximations ◽  
Seasonal Flow ◽  
The Individual

Abstract. In seasonal flow forecasting applications, one factor which can help predictability is a significant hydrological response time between rainfall and flows. On account of storage influences, large lakes therefore provide a useful test case although, due to the spatial scales involved, there are a number of modelling challenges related to data availability and understanding the individual components in the water balance. Here some possible model structures are investigated using a range of stochastic regression and transfer function techniques with additional insights gained from simple analytical approximations. The methods were evaluated using records for two of the largest lakes in the world – Lake Malawi and Lake Victoria – with forecast skill demonstrated several months ahead using water balance models formulated in terms of net inflows. In both cases slight improvements were obtained for lead times up to 4–5 months from including climate indices in the data assimilation component. The paper concludes with a discussion of the relevance of the results to operational flow forecasting systems for other large lakes.

The missing pieces for better future predictions in subarctic ecosystems

2020 ◽  
Author(s):  
Didac Pascual Descarrega ◽  
Keyword(s):  
Carbon Cycle ◽  
Research Priorities ◽  
Expert Elicitation ◽  
The Arctic ◽  
Ecosystem Change ◽  
Future Research ◽  
Local Climate ◽  
Mitigation And Adaptation ◽  
Subarctic Ecosystems

<p>Arctic and subarctic ecosystems are undergoing substantial changes in response to climatic and other anthropogenic drivers, and these changes are likely to continue over this Century. Due to the strong linkages between the biotic (vegetation and carbon cycle) and abiotic (permafrost, hydrology and local climate) ecosystem components, the total magnitude of these changes result from multiple interacting effects that can enhance or counter the direct effects. In some cases, short-lived extreme events can override climate-driven long-term trends. The field measurements can mostly tackle individual drivers rather than the interactions between them. Currently, a comprehensive assessment of the drivers of different changes and the magnitude of their impact on subarctic ecosystems is missing. The Torneträsk area, in the Swedish subarctic, has an unrivalled history of environmental observation over 100 years and encompasses the 12% of all published papers and the 19% of all study citations across the Arctic. In this study, we summarize and rank the direct and indirect drivers of ecosystem change in the Torneträsk area, and propose future research priorities identified to improve future predictions of ecosystem change. First, we identified the direct and indirect changing drivers and the multiple related processes and feedbacks impacting the local climate, permafrost, hydrology, vegetation, and the carbon cycle based on the existing literature. Subsequently, an Expert Elicitation with the participation of 27 leading scientists was used to rank the short- (2020-2040) and long-term (2040-2100) future impact of these drivers according to their opinions on the relative importance and novelty. These two key evaluation matrices form the basis for identifying the current research priorities for subarctic regions. The relatively small size of the Torneträsk area, its great biological and geomorphological complexity, and its unique datasets is a microcosm of the subarctic and the rapidly transforming Arctic ecosystems that can help understand the ongoing processes and future ecosystem changes at a larger circumpolar-scale. This in turn will provide the basis for future mitigation and adaptation plans needed in a changing climate.</p>

scholarly journals Exploratory studies into seasonal flow forecasting potential for large lakes

2017 ◽  
Author(s):  
Kevin Sene ◽  
Wlodek Tych ◽  
Keith Beven
Keyword(s):  
Water Balance ◽  
Lake Victoria ◽  
Spatial Scales ◽  
Data Availability ◽  
Climate Indices ◽  
Test Case ◽  
Large Lakes ◽  
Analytical Approximations ◽  
Seasonal Flow ◽  
The Individual

Abstract. In seasonal flow forecasting applications, one factor which can help predictability is a significant hydrological response time between rainfall and flows. On account of storage influences, large lakes therefore provide a useful test case although, due to the spatial scales involved, there are a number of modelling challenges related to data availability and understanding the individual components in the water balance. Here some possible model structures are investigated using a 10 range of stochastic regression and transfer function techniques with additional insights gained from simple analytical approximations. The methods were evaluated using records for two of the largest lakes in the world – Lake Malawi and Lake Victoria – with forecast skill demonstrated several months ahead using water balance models formulated in terms of net inflows. In both cases slight improvements were obtained for lead times up to 4–5 months from including climate indices in the data assimilation component. The paper concludes with a discussion of the relevance of the results to operational flow 15 forecasting systems for other large lakes.

scholarly journals Adolescent Well-Being Gap Maps: What We Know and Opportunities for Future Research

2021 ◽  
Vol 16 (2-3) ◽  
pp. 124-158
Author(s):  
Prerna Banati ◽  
Christina Bacalso
Keyword(s):  
Youth Development ◽  
Research Policy ◽  
Emotional Health ◽  
Research Priorities ◽  
Well Being ◽  
Sub Saharan Africa ◽  
Future Research ◽  
Policy And Practice ◽  
Middle Income ◽  
Sub Saharan

Designing and delivering effective programs for adolescents and youth requires high-quality evidence that is easily available to decision makers. Yet while adolescence as a unique development period has gained policy attention in recent years, and there has been a growth in research, priorities for research investment remain unclear. This paper provides a panoramic view of adolescent development research to review what evidence exists and how evidence is mapped. Our approach interrogated studies mapped by evidence maps (including the subset evidence gap maps or EGMs). Our findings have implications for future directions of research on positive youth development (PYD) in low- and middle-income countries (LMICs): The analysis showed that while most evidence maps exist in the adolescent protection, safety, and security domain, most studies focus on outcomes related to well-being and social and emotional health. There are gaps in demographic groupings and contexts studied. For example, while gender and sex inequities were the most prevalent in the studies identified, though seen in less than 1/5 of the studies analyzed, disability appears in only 3%. Housing, participation, and information communication technologies are researched relatively rarely. Rigorous research in conflict or humanitarian settings is absent. Additionally, while most impact evaluations are conducted in sub-Saharan Africa, followed by Latin America, the Middle East and North America were poorly represented regions. This article reflects on the state of the evidence, argues for a more thoughtful approach to equity in adolescent research, and calls for a stronger link between research, policy, and practice in LMICs.

Current Postvention Research and Priorities for the Future

Crisis ◽  
2017 ◽  
Vol 38 (3) ◽  
pp. 202-206 ◽  
Author(s):  
Karl Andriessen ◽  
Dolores Angela Castelli Dransart ◽  
Julie Cerel ◽  
Myfanwy Maple
Keyword(s):  
Social Life ◽  
Online Survey ◽  
Research Priorities ◽  
Future Research ◽  
Physical And Mental Health ◽  
Intercultural Collaboration ◽  
The Social ◽  
The Future ◽  
Suicide Bereavement ◽  
Ethical Approval

Abstract. Background: Suicide can have a lasting impact on the social life as well as the physical and mental health of the bereaved. Targeted research is needed to better understand the nature of suicide bereavement and the effectiveness of support. Aims: To take stock of ongoing studies, and to inquire about future research priorities regarding suicide bereavement and postvention. Method: In March 2015, an online survey was widely disseminated in the suicidology community. Results: The questionnaire was accessed 77 times, and 22 records were included in the analysis. The respondents provided valuable information regarding current research projects and recommendations for the future. Limitations: Bearing in mind the modest number of replies, all from respondents in Westernized countries, it is not known how representative the findings are. Conclusion: The survey generated three strategies for future postvention research: increase intercultural collaboration, increase theory-driven research, and build bonds between research and practice. Future surveys should include experiences with obtaining research grants and ethical approval for postvention studies.

scholarly journals Applied sport science and medicine of women’s rugby codes: a systematic-scoping review and consensus on future research priorities protocol

2021 ◽  
Vol 7 (3) ◽  
pp. e001108
Author(s):  
Omar Heyward ◽  
Stacey Emmonds ◽  
Gregory Roe ◽  
Sean Scantlebury ◽  
Keith Stokes ◽  
...  
Keyword(s):  
Scoping Review ◽  
Research Priorities ◽  
Consensus Method ◽  
Future Research ◽  
Delphi Consensus ◽  
Medicine Research ◽  
Sport Science ◽  
Priority Areas ◽  
Wide Range ◽  
Scoping Reviews

Women’s rugby (rugby league, rugby union and rugby sevens) has recently grown in participation and professionalisation. There is under-representation of women-only cohorts within applied sport science and medicine research and within the women’s rugby evidence base. The aims of this article are: Part 1: to undertake a systematic-scoping review of the applied sport science and medicine of women’s rugby, and Part 2: to develop a consensus statement on future research priorities. This article will be designed in two parts: Part 1: a systematic-scoping review, and Part 2: a three-round Delphi consensus method. For Part 1, systematic searches of three electronic databases (PubMed (MEDLINE), Scopus, SPORTDiscus (EBSCOhost)) will be performed from the earliest record. These databases will be searched to identify any sport science and medicine themed studies within women’s rugby. The Preferred Reporting Items for Systematic Reviews and Meta-analyses extension for Scoping Reviews will be adhered to. Part 2 involves a three-round Delphi consensus method to identify future research priorities. Identified experts in women’s rugby will be provided with overall findings from Part 1 to inform decision-making. Participants will then be asked to provide a list of research priority areas. Over the three rounds, priority areas achieving consensus (≥70% agreement) will be identified. This study has received institutional ethical approval. When complete, the manuscript will be submitted for publication in a peer-reviewed journal. The findings of this article will have relevance for a wide range of stakeholders in women’s rugby, including policymakers and governing bodies.

scholarly journals Patients, clinicians and researchers working together to improve cardiovascular health: a qualitative study of barriers and priorities for patient-oriented research

BMJ Open ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. e031187 ◽  
Author(s):  
Maria-Jose Santana ◽  
Sandra Zelinsky ◽  
Sadia Ahmed ◽  
Chelsea Doktorchik ◽  
Matthew James ◽  
...  
Keyword(s):  
Health Research ◽  
Heart Diseases ◽  
Research Priorities ◽  
Research Programme ◽  
Advisory Council ◽  
Future Research ◽  
Prediction And Prevention ◽  
Participatory Health Research ◽  
Working Together ◽  
Oriented Research

ObjectivesThe overall goal of this study is to identify priorities for cardiovascular (CV) health research that are important to patients and clinician-researchers. We brought together a group of CV patients and clinician-researchers new to patient-oriented research (POR), to build a multidisciplinary POR team and form an advisory committee for the Libin Cardiovascular Institute of Alberta.DesignThis qualitative POR used a participatory health research paradigm to work with participants in eliciting their priorities. Therefore, participants were involved in priority setting, and analysis of findings. Participants also developed a plan for continued engagement to support POR in CV health research.SettingLibin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Canada.ParticipantsA total of 23 participants, including patients and family caregivers (n=12) and clinician-researchers (n=11).ResultsParticipants identified barriers and facilitators to POR in CV health (lack of awareness of POR and poor understanding on the role of patients) and 10 research priorities for improving CV health. The CV health research priorities include: (1) CV disease prediction and prevention, (2) access to CV care, (3) communication with providers, (4) use of eHealth technology, (5) patient experiences in healthcare, (6) patient engagement, (7) transitions and continuity of CV care, (8) integrated CV care, (9) development of structures for patient-to-patient support and (10) research on rare heart diseases.ConclusionsIn this study, research priorities were identified by patients and clinician-researchers working together to improve CV health. Future research programme and projects will be developed to address these priorities. A key output of this study is the creation of the patient advisory council that will provide support and will work with clinician-researchers to improve CV health.

scholarly journals Prevalence and determinants of chronic kidney disease in women with hypertensive disorders in pregnancy in Nigeria: a cohort study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Salisu M. Ishaku ◽  
Timothy Olusegun Olanrewaju ◽  
Joyce L. Browne ◽  
Kerstin Klipstein-Grobusch ◽  
Gbenga A. Kayode ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Gestational Hypertension ◽  
Monitoring Program ◽  
Sub Saharan Africa ◽  
Future Research ◽  
Hypertensive Disorders ◽  
Hypertensive Disorders In Pregnancy ◽  
Sub Saharan ◽  
In Pregnancy

Abstract Background Worldwide, hypertensive disorders in pregnancy (HDPs) complicate between 5 and 10% of pregnancies. Sub-Saharan Africa (SSA) is disproportionately affected by a high burden of HDPs and chronic kidney disease (CKD). Despite mounting evidence associating HDPs with the development of CKD, data from SSA are scarce. Methods Women with HDPs (n = 410) and normotensive women (n = 78) were recruited at delivery and prospectively followed-up at 9 weeks, 6 months and 1 year postpartum. Serum creatinine was measured at all time points and the estimated glomerular filtration rates (eGFR) using CKD-Epidemiology equation determined. CKD was defined as decreased eGFR< 60 mL/min/1.73m2 lasting for ≥ 3 months. Prevalence of CKD at 6 months and 1 year after delivery was estimated. Logistic regression analyses were conducted to evaluate risk factors for CKD at 6 months and 1 year postpartum. Results Within 24 h of delivery, 9 weeks, and 6 months postpartum, women with HDPs were more likely to have a decreased eGFR compared to normotensive women (12, 5.7, 4.3% versus 0, 2 and 2.4%, respectively). The prevalence of CKD in HDPs at 6 months and 1 year postpartum was 6.1 and 7.6%, respectively, as opposed to zero prevalence in the normotensive women for the corresponding periods. Proportions of decreased eGFR varied with HDP sub-types and intervening postpartum time since delivery, with pre-eclampsia/eclampsia showing higher prevalence than chronic and gestational hypertension. Only maternal age was independently shown to be a risk factor for decreased eGFR at 6 months postpartum (aOR = 1.18/year; 95%CI 1.04–1.34). Conclusion Prior HDP was associated with risk of future CKD, with prior HDPs being more likely to experience evidence of CKD over periods of postpartum follow-up. Routine screening of women following HDP-complicated pregnancies should be part of a postpartum monitoring program to identify women at higher risk. Future research should report on both the eGFR and total urinary albumin excretion to enable detection of women at risk of future deterioration of renal function.

Trade Union Membership and Job Satisfaction

1987 ◽  
Vol 17 (4) ◽  
pp. 160-164 ◽  
Author(s):  
Stephen D. Bluen ◽  
Caroline van Zwam
Keyword(s):  
Job Satisfaction ◽  
Union Membership ◽  
Research Priorities ◽  
Future Research ◽  
Non Union ◽  
Study Results ◽  
Worker Satisfaction ◽  
The Relationship ◽  
Moderating Role

The relationship between union membership and job satisfaction, and the moderating role of race and sex is considered in this study. Results show that both race and sex interact with union membership in predicting job satisfaction. A significant 2 × 2 × 2 (union membership × race × sex) interaction showed that white, non-unionized females were less satisfied with their work than black, non-unionized females. In addition, sex moderated the relationship between union membership and co-worker satisfaction: Whereas unionized males were more satisfied with their co-workers than unionized females, the opposite was true for the non-unionized subjects. Finally, union members and non-members differed regarding promotion opportunities: Union members were more satisfied with their promotion opportunities than non-union members. On the basis of the findings, implications and future research priorities are discussed.

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