Research gap analyses

Showing 121–180 of 1,987 gap analyses · page 3 of 34

• Cadmium contamination in agricultural soils is a complex problem that requires a comprehensive solution. The efficiency of phytoremediation technology needs to be enhanced to effectively remediate cad

  The mobility and bioaccumulation of heavy metals pose significant environmental and health risks. The lack of effective waste management practices and environmental remediation strategies is a major challenge.

  Agriculture · 9 papers · avg 2025.8 · moderate evidence
• The effectiveness of nano-silicon application methods in enhancing salt tolerance in lettuce is not well understood. There is a need to evaluate the potential of nano-silicon as a solution for improvi

  While silicon (Si) supplementation has demonstrated efficacy in mitigating heavy metal stress in plants, its effectiveness in Si-deficient soil-rice systems remains insufficiently characterized, particularly at the field scale.

  Agriculture · 9 papers · avg 2025.3 · moderate evidence
• Soil acidification affects about 50% of arable soils globally. It decreases soil fertility and the abundance and diversity of bacterial communities. There is a need to explore effective ways to reduce

  Soil acidification affects about 50% of arable soils globally. It decreases soil fertility and the abundance and diversity of bacterial communities. There is a need to explore effective ways to reduce soil acidity.

  Agriculture · 9 papers · avg 2025.1 · moderate evidence
• Localized fertilization of beneficial microbes has potential advantages in achieving higher productivity, but the underlying biological mechanisms of interactions between rhizospheric microorganisms a

  These interactions are crucial for plant nutrient acquisition and productivity, but the mechanisms by which different nutrient forms shape rhizosphere microbes to enhance nutrient utilization under field conditions remain unclear.

  Agriculture · 9 papers · avg 2025 · moderate evidence
• The lack of cost-effective and reusable heterogeneous catalysts for the catalytic reduction of persistent organic dyes. The need for environmentally friendly and sustainable treatment technologies for

  The lack of efficient and energy-efficient wastewater treatment systems. The limited efficacy and high cost of traditional biochemical and physicochemical treatments. The need for novel and promising photocatalysts for environmentally frien

  Chemistry · 9 papers · avg 2025.2 · moderate evidence
• Future studies should continue to investigate the mechanisms driving fast-ice variability. Future studies should also explore the implications of the study's findings for the prediction of fast-ice ex

  Future studies should continue to investigate the mechanisms driving fast-ice variability. Future studies should also explore the implications of the study's findings for the prediction of fast-ice extent and its impact on the Antarctic eco

  Earth Science · 9 papers · avg 2019.2 · moderate evidence
• The challenge of pedagogy lies in structuring learning environments to maximise motor skill acquisition while sustaining students' intrinsic motivation to participate and learn. Traditional teacher-ce

  The challenge of pedagogy lies in structuring learning environments to maximise motor skill acquisition while sustaining students' intrinsic motivation to participate and learn. Traditional teacher-centred, direct instruction approaches hav

  Education · 9 papers · avg 2026 · moderate evidence
• As a result, analysis of the textbooks revealed that the understanding of assessment adopted in the curriculum is not reflected in the related textbooks sufficiently in terms of "diversity in assessme

  As a result, analysis of the textbooks revealed that the understanding of assessment adopted in the curriculum is not reflected in the related textbooks sufficiently in terms of "diversity in assessment techniques"; is reflected in terms of

  Education · 9 papers · avg 2024.6 · moderate evidence
• The study highlights the urgent need for leadership development programmes that foster hybrid leadership models in under-resourced schools. Policymakers should consider integrating collaborative leade

  The study did not examine the direct impact on students, which limits our understanding of how inclusive practices influence their academic and social experiences. The relatively small data set restricted the scope of our quantitative analy

  Education · 9 papers · avg 2025.8 · moderate evidence
•      Teachers should actively participate in LAC sessions and apply the strategies learned to improve classroom management and instructional outcomes. Structured follow-ups and mentorship can sup

       Teachers should actively participate in LAC sessions and apply the strategies learned to improve classroom management and instructional outcomes. Structured follow-ups and mentorship can support this process. Schools should promot

  Education · 9 papers · avg 2026 · moderate evidence
• While the processes underlying ICI resistance are not fully understood, some mechanisms influencing primary resistance, including tumor intrinsic factors (lack of tumor immunogenicity, loss of tumor a

  While the processes underlying ICI resistance are not fully understood, some mechanisms influencing primary resistance, including tumor intrinsic factors (lack of tumor immunogenicity, loss of tumor antigen or HLA expression and aberrant si

  Medicine · 9 papers · avg 2025.3 · moderate evidence
• Although numerous animal models have provided substantial evidence demonstrating that inhibiting ferroptosis exerts significant effects on NAFLD/NASH, their precise mechanisms remain elusive. Furthermo

  Although numerous animal models have provided substantial evidence demonstrating that inhibiting ferroptosis exerts significant effects on NAFLD/NASH, their precise mechanisms remain elusive. Furthermore, clinical research investigating phar

  Medicine · 9 papers · avg 2025.4 · moderate evidence
• The study aims to address the lack of understanding of the dynamical evolution of Milky Way globular clusters. The paper seeks to quantify the effects of gravitational perturbations from massive neigh

  The study aims to address the lack of understanding of the dynamical evolution of Milky Way globular clusters. The paper seeks to quantify the effects of gravitational perturbations from massive neighbours on low-mass clusters, which is not

  Physics · 9 papers · avg 2025.8 · moderate evidence
• Heavy metal contamination in soil systems is an escalating global crisis, yet over 55% of urban agriculture literature focuses on high-tech indoor vertical farming, leaving vulnerable open-field tropi

  Heavy metal contamination in soil systems is an escalating global crisis, yet over 55% of urban agriculture literature focuses on high-tech indoor vertical farming, leaving vulnerable open-field tropical urban agriculture (UPA) severely und

  Agriculture · 9 papers · avg 2025.8 · moderate evidence
• Ongoing research is focused on optimizing nanoparticle physicochemical properties, surface functionalization, and multi-modal delivery systems - Research is needed to overcome the limitations of nanom

  Ongoing research is focused on optimizing nanoparticle physicochemical properties, surface functionalization, and multi-modal delivery systems - Research is needed to overcome the limitations of nanomaterial biocompatibility, targeted deliv

  Chemistry · 9 papers · avg 2026 · moderate evidence
• There is a lack of research on the impact of structured school-based physical activity programs on pre-adolescents' physical fitness and psychosocial well-being. Prior research has focused on older ch

  There is a lack of research on the impact of structured school-based physical activity programs on pre-adolescents' physical fitness and psychosocial well-being. Prior research has focused on older children and adolescents, leaving a gap in

  Psychology · 9 papers · avg 2016 · moderate evidence
• Traditional methods for measuring soil volumetric water content have limitations. Single-feature-based methods for SVWC prediction have limitations in accuracy and stability. There is a need for a mul

  Traditional methods for measuring soil volumetric water content have limitations. Single-feature-based methods for SVWC prediction have limitations in accuracy and stability. There is a need for a multi-feature approach to capture the compl

  Agriculture · 9 papers · avg 2025.2 · moderate evidence
• Tropical dry forests play a crucial role in climate change mitigation by sequestering atmospheric carbon, yet the balance between soil carbon storage and soil CO 2 emissions remains poorly understood

  Tropical dry forests play a crucial role in climate change mitigation by sequestering atmospheric carbon, yet the balance between soil carbon storage and soil CO 2 emissions remains poorly understood across contrasting forest subtypes.

  Agriculture · 9 papers · avg 2025.5 · moderate evidence
• Air pollution is a major public health concern with substantial adverse impacts on human health and the environment. The WHO air quality guidelines are not being met in many regions. There is a need f

  The paper identifies a gap in the understanding of atmospheric processes and the need for improved air quality models. The paper identifies a gap in the development of atmospheric simulation chambers for studying atmospheric processes.

  Earth Science · 8 papers · avg 2022.7 · moderate evidence
• Exploring the application of the MDR-GRAPE algorithm to more complex quantum systems, - investigating the effect of different penalty weights on the optimization process, - developing a mathematically

  exploring the application of the MDR-GRAPE algorithm to more complex quantum systems, - investigating the effect of different penalty weights on the optimization process, - developing a mathematically guaranteed enforcement of the fidelity

  Physics · 8 papers · avg 2025.4 · moderate evidence
• Abstract The ability of soil to supply plant available water during dry periods is a poorly understood but critically important ecosystem property that affects vegetation health and regional hydrology

  Abstract The ability of soil to supply plant available water during dry periods is a poorly understood but critically important ecosystem property that affects vegetation health and regional hydrology.

  Agriculture · 8 papers · avg 2024.6 · moderate evidence
• The lack of effective methods for rapid and accurate detection of landslide-damaged areas using satellite imagery and remote sensing data. The need for a robust and generalizable model that can be app

  The lack of effective methods for rapid and accurate detection of landslide-damaged areas using satellite imagery and remote sensing data. The need for a robust and generalizable model that can be applied to different regions and environmen

  Computer Science · 8 papers · avg 2025.9 · moderate evidence
• The drivers of sustained commitment to climate-smart agriculture among smallholder farmers are underexplored. The study aims to address this gap by investigating the adaptive intentions of smallholder

  Smallholder farmers' limited economic resources restrict access to alternative livelihoods. Climate change threatens food systems and livelihoods. The adoption of climate-smart agricultural practices in Ghana and much of Africa remains low.

  Earth Science · 8 papers · avg 2025.6 · moderate evidence
• Low soil nitrogen levels in sub-Saharan Africa - High costs and inaccessibility of mineral nitrogen fertilizers - Limited understanding of the effects of nano-fertilizers on maize growth and yield cha

  Low soil nitrogen levels in sub-Saharan Africa - High costs and inaccessibility of mineral nitrogen fertilizers - Limited understanding of the effects of nano-fertilizers on maize growth and yield characteristics

  Agriculture · 8 papers · avg 2025.6 · moderate evidence
• The need to increase rice production to meet the growing demand. The plateauing trend in the productivity of high-yielding varieties of rice. The lack of understanding of genetic diversity in rice TGM

  The need to increase rice production to meet the growing demand. The plateauing trend in the productivity of high-yielding varieties of rice. The lack of understanding of genetic diversity in rice TGMS lines.

  Agriculture · 8 papers · avg 2025.6 · moderate evidence
• Further studies on the long-term effects of graded nitrogen, phosphorus, and potassium fertilisation on wheat productivity. Investigations on the potential of other organic amendments to improve wheat

  Further studies on the long-term effects of graded nitrogen, phosphorus, and potassium fertilisation on wheat productivity. Investigations on the potential of other organic amendments to improve wheat growth and yield.

  Agriculture · 8 papers · avg 2025.7 · moderate evidence
• There is a need for a comprehensive dataset on SOC dynamics in Australian agroecosystems. Prior studies have highlighted the importance of soil monitoring programs, but there is a lack of integrated d

  Investigate the effects of other crop residues on SOC dynamics, - Examine the impact of different environmental conditions on residue incorporation, - Study the long-term effects of residue addition on soil fertility and ecosystem sustainab

  Agriculture · 8 papers · avg 2025.6 · moderate evidence
• The study did not evaluate other environmental or management factors that may influence soil properties, - The study only considered six districts in northern Tanzania, - The sample size was limited t

  The study did not evaluate other environmental or management factors that may influence soil properties, - The study only considered six districts in northern Tanzania, - The sample size was limited to 54 villages

  Agriculture · 8 papers · avg 2025.6 · moderate evidence
• Inadequate plastic waste management has led to the widespread release of plastic debris into the environment. Microplastics have emerged as ubiquitous environmental contaminants of growing global conc

  The current methods for detecting microplastics require complex sample preparation and only allow for static measurements. There is a need for a more sophisticated measuring method due to the increasing amount of plastic waste and its poten

  Chemistry · 8 papers · avg 2025.6 · moderate evidence
• The combined influence of long-term climate, short-term weather variation, local built environments, and land-use gradients on dengue dynamics in rural settings remains poorly understood, limiting our

  Dengue fever is a complex disease influenced by multiple climate variables. The disease has a significant impact on public health in tropical urban areas. There is a need to develop effective early warning systems for dengue outbreaks.

  Earth Science · 8 papers · avg 2025.6 · moderate evidence
• Improved velocity dispersion measurements for the faintest Milky Way satellites could greatly refine the constraint on the particle mass of thermal-relic dark matter. Further studies of dark matter an

  The physical nature of dark matter remains one of the most prominent unsolved puzzles in fundamental particle physics. Stringent null results from direct detection experiments have severely constrained tree-level DM-quark and DM-electron in

  Physics · 8 papers · avg 2026 · moderate evidence
• The paper identifies a gap in the research, noting that generalizations to other ethnic minorities are often made from the results of studies involving Black participants. The study notes that the dat

  The paper identifies a gap in the research, noting that generalizations to other ethnic minorities are often made from the results of studies involving Black participants. The study notes that the data in the area of counselor prejudice and

  Psychology · 8 papers · avg 1982.3 · moderate evidence
• Abstract Maize is a cornerstone of global food security, yet the effects of interannual climate variability on its yield under varying production contexts remain not fully understood.

  Abstract Maize is a cornerstone of global food security, yet the effects of interannual climate variability on its yield under varying production contexts remain not fully understood.

  Agriculture · 8 papers · avg 2025.2 · moderate evidence
• Investigating the long-term effects of ZnO nanoparticles on soil and plants, - Developing more efficient and sustainable Zn fertilization strategies, - Exploring the potential of ZnO nanoparticles in

  Investigating the long-term effects of ZnO nanoparticles on soil and plants, - Developing more efficient and sustainable Zn fertilization strategies, - Exploring the potential of ZnO nanoparticles in other applications

  Agriculture · 8 papers · avg 2025.7 · moderate evidence
• Most conventional AI models do not consider the spatial-temporal and dynamic nature of agroecosystems. Traditional AI face challenges in solving problems including real-time optimization of resources,

  Most conventional AI models do not consider the spatial-temporal and dynamic nature of agroecosystems. Traditional AI face challenges in solving problems including real-time optimization of resources, adaptation to environments, and fusion

  Agriculture · 8 papers · avg 2025.6 · moderate evidence
• Multi-location experiments can ensure the spatiotemporal effects of diversified crop rotations. Longer-term monitoring at multiple sites can reduce uncertainty associated with extreme weather events a

  Multi-location experiments can ensure the spatiotemporal effects of diversified crop rotations. Longer-term monitoring at multiple sites can reduce uncertainty associated with extreme weather events and climate change.

  Agriculture · 8 papers · avg 2025 · moderate evidence
• There is a need to assess genetic variability and trait associations in indeterminate tomato genotypes. There is a need to identify superior genotypes for improved productivity in tomato cultivation.

  There is a need to assess genetic variability and trait associations in indeterminate tomato genotypes. There is a need to identify superior genotypes for improved productivity in tomato cultivation.

  Agriculture · 8 papers · avg 2025.8 · moderate evidence
• Despite the importance of the crop, limited research work on breeding aspects has been undertaken, leading to lack of information on the understanding of levels of variability of genotypes for differe

  Despite the importance of the crop, limited research work on breeding aspects has been undertaken, leading to lack of information on the understanding of levels of variability of genotypes for different traits and their interactions.

  Agriculture · 8 papers · avg 2025.2 · moderate evidence
• The impact of biological materials on soil phosphorus forms in salinized soil is not well understood. The effectiveness of combining biological materials with B. mucilaginosus in improving soil phosph

  The impact of biological materials on soil phosphorus forms in salinized soil is not well understood. The effectiveness of combining biological materials with B. mucilaginosus in improving soil phosphorus forms is unknown.

  Agriculture · 8 papers · avg 2025.1 · moderate evidence
• Together, these findings position the rumen microbiome as a rich and underexplored reservoir of antimicrobial diversity, with potential for the development of targeted microbiome-modulating therapeuti

  Together, these findings position the rumen microbiome as a rich and underexplored reservoir of antimicrobial diversity, with potential for the development of targeted microbiome-modulating therapeutics, livestock interventions aimed at imp

  Biology · 8 papers · avg 2025.8 · moderate evidence
• The conventional synthesis methods for ZnO nanoparticles have limitations. The wide bandgap of ZnO limits its photocatalytic activity to UV light. There is a need for sustainable and environmentally f

  The conventional synthesis methods for ZnO nanoparticles have limitations. The wide bandgap of ZnO limits its photocatalytic activity to UV light. There is a need for sustainable and environmentally friendly approaches for wastewater treatm

  Chemistry · 8 papers · avg 2025.6 · moderate evidence
• The study aims to address the gap in our understanding of the relationship between physical activity and aging. The study investigates the effects of age and physical activity on reaction and movement

  The study aims to address the gap in our understanding of the relationship between physical activity and aging. The study investigates the effects of age and physical activity on reaction and movement time, which is not well understood.

  Chemistry · 8 papers · avg 1978.9 · moderate evidence
• While the co-benefit of climate change mitigation through so called blue carbon storage in coastal ecosystems has raised increasing interest in mangroves, the relevance of multifaceted biodiversity as

  While the co-benefit of climate change mitigation through so called blue carbon storage in coastal ecosystems has raised increasing interest in mangroves, the relevance of multifaceted biodiversity as a driver of carbon storage remains uncl

  Earth Science · 8 papers · avg 2024.6 · moderate evidence
• However, stream biofilm bacteria, despite forming the foundation of fluvial microbial ecosystems, have rarely been studied beyond their taxonomic composition, although deciphering their interactions i

  However, stream biofilm bacteria, despite forming the foundation of fluvial microbial ecosystems, have rarely been studied beyond their taxonomic composition, although deciphering their interactions is key to understanding ecosystem functio

  Earth Science · 8 papers · avg 2024.1 · moderate evidence
• However, much remains to be done to further improve their skill and to develop new climate service forecast products to help countries and sectorial decision makers better manage weather risks and ext

  However, much remains to be done to further improve their skill and to develop new climate service forecast products to help countries and sectorial decision makers better manage weather risks and extremes and to adapt to climate change.

  Earth Science · 8 papers · avg 2018.8 · moderate evidence
• Further studies should examine the relationship between role overload and psychological wellbeing among employees. 2. Future studies should adopt experimental designs involving participants from both

  Further studies should examine the relationship between role overload and psychological wellbeing among employees. 2. Future studies should adopt experimental designs involving participants from both public and private schools. 3. Governmen

  Education · 8 papers · avg 2026 · moderate evidence
• Discuss limitations of the study, taking into account sources of potential bias or imprecision.

  Discuss limitations of the study, taking into account sources of potential bias or imprecision.

  Education · 8 papers · avg 2017 · moderate evidence
• The paper identifies a gap in the understanding of Shakespeare's dramatic punctuation and its significance in interpreting the plays. The author notes that prior work on the topic has not fully explor

  The paper identifies a gap in the understanding of Shakespeare's dramatic punctuation and its significance in interpreting the plays. The author notes that prior work on the topic has not fully explored the implications of dramatic punctuat

  General · 8 papers · avg 2005.3 · moderate evidence
• Recent literature from 2025 to 2026 has firmly established AI as a core driver in the methodological evolution of precision oncology for HCC. By implementing VFMs to mitigate imaging domain shifts and

  Recent literature from 2025 to 2026 has firmly established AI as a core driver in the methodological evolution of precision oncology for HCC. By implementing VFMs to mitigate imaging domain shifts and deploying spatial deconvolution algorith

  Medicine · 8 papers · avg 2026 · moderate evidence
• To apply the results to the study of quantum field theory in curved backgrounds. To investigate the relation between complexity and other physically meaningful quantities. To explore the implications

  To apply the results to the study of quantum field theory in curved backgrounds. To investigate the relation between complexity and other physically meaningful quantities. To explore the implications of the findings for the study of black h

  Physics · 8 papers · avg 2026 · moderate evidence
• The paper identifies a gap in the literature on the role of empathy in inhibiting aggression. Prior work has shown that subjects are more likely to help someone they like more, someone who is more sim

  The paper identifies a gap in the literature on the role of empathy in inhibiting aggression. Prior work has shown that subjects are more likely to help someone they like more, someone who is more similar to themselves, and someone who is m

  Psychology · 8 papers · avg 2014.6 · moderate evidence
• The study addresses the gap in understanding the cognitive precursors of early mathematical competence. It examines the relationship between domain-general and domain-specific cognitive processes and

  The study addresses the gap in understanding the cognitive precursors of early mathematical competence. It examines the relationship between domain-general and domain-specific cognitive processes and mathematical performance. The study inve

  Psychology · 8 papers · avg 2025.7 · moderate evidence
• A large number of empirical studies have shown that Internet Gaming Disorder has a high level of comorbidity with other diseases, including depression, anxiety, obesity, internalizing and externalizin

  A large number of empirical studies have shown that Internet Gaming Disorder has a high level of comorbidity with other diseases, including depression, anxiety, obesity, internalizing and externalizing behavioral problems, however, little i

  Psychology · 8 papers · avg 2024.6 · moderate evidence
• The relationship between hematologic parameters and postpartum depression is not well understood. There is a need to identify early predictors of postpartum depression. The study aims to address the g

  The relationship between hematologic parameters and postpartum depression is not well understood. There is a need to identify early predictors of postpartum depression. The study aims to address the gap in the literature by investigating th

  Psychology · 8 papers · avg 2026 · moderate evidence
• Whereas the evidence supporting a biological cause for increased depression in women is still inconclusive (Nolen-Hoeksema, 1995), the present Western sociocultural context is seen by many investigato

  Whereas the evidence supporting a biological cause for increased depression in women is still inconclusive (Nolen-Hoeksema, 1995), the present Western sociocultural context is seen by many investigators as a viable contributing factor (Helg

  Psychology · 8 papers · avg 2008 · moderate evidence
• The implementation of the Electronic-Based Government System has accelerated the digitalization of the bureaucracy, but challenges such as digital literacy gaps and limited infrastructure remain. Ther

  The implementation of the Electronic-Based Government System has accelerated the digitalization of the bureaucracy, but challenges such as digital literacy gaps and limited infrastructure remain. There is a need for alternative models of pu

  Social Science · 8 papers · avg 2026 · moderate evidence
• Agroecological approaches have the potential to reduce the adverse impacts of agriculture on the environment whilst sustaining productivity, yet rigorous assessments of associated policies’ ability to

  Agroecological approaches have the potential to reduce the adverse impacts of agriculture on the environment whilst sustaining productivity, yet rigorous assessments of associated policies’ ability to achieve these dual aims at farm scale r

  Agriculture · 8 papers · avg 2025.6 · moderate evidence
• The need for advanced materials for supercapacitors with improved capacitance and energy density. The limited understanding of the influence of different oxidizing environments on the polymerization p

  The need for advanced materials for supercapacitors with improved capacitance and energy density. The limited understanding of the influence of different oxidizing environments on the polymerization process and resulting electrochemical pro

  Chemistry · 8 papers · avg 2025.9 · moderate evidence
• Further analysis of the methodological differences between the two approaches is needed, - Application of the combined framework to other regions and datasets could provide further insights, - Investi

  The study only evaluates historical simulations from CMIP6 models and does not consider future projections. The study uses a limited number of models and observations. The study does not account for other sources of uncertainty in climate s

  Earth Science · 8 papers · avg 2026 · moderate evidence
• However, the integrated effects of different preceding crop straw incorporation patterns and their associated water and nitrogen management strategies on energy use, environmental performance, and eco

  However, the integrated effects of different preceding crop straw incorporation patterns and their associated water and nitrogen management strategies on energy use, environmental performance, and economic benefits in rice production system

  Agriculture · 8 papers · avg 2025.5 · moderate evidence