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Articles 40981 - 41010 of 302510
Full-Text Articles in Physical Sciences and Mathematics
Some Contributions To Free Probability And Random Matrices., Sukrit Chakraborty Dr.
Some Contributions To Free Probability And Random Matrices., Sukrit Chakraborty Dr.
Doctoral Theses
No abstract provided.
Supporting Dataset For Observed And Forecasted Global Warming Pressure On Coastal Hypoxia, Michael M. Whitney
Supporting Dataset For Observed And Forecasted Global Warming Pressure On Coastal Hypoxia, Michael M. Whitney
Department of Marine Sciences
This archive contains the supporting dataset for the Biogeosciences manuscript “Observed and forecasted global warming pressure on coastal hypoxia” by Michael M. Whitney. The main objective of the manuscript is studying global patterns exacerbating coastal hypoxia by analyzing linear trends in SST, surface oxygen capacity, and (vertical-minimum) oxygen concentration. Observations from a satellite-derived SST global climate data are analyzed to provide context for coastal SST and oxygen-capacity trends over the last four decades. New analysis of 21st century forecasts from the Community Earth System Model (CESM) Large Ensemble Project is completed for coastal areas. Observed and forecasted coastal SST and …
Eveloping A Suitability Assessment Criteria For Software Developers: Behavioral Assessment Using Psychometric Test, Jayati Gulati, Bharti Suri, Luiz Fernando Capretz, Bimlesh Wadhwa, Anu Singh Lather
Eveloping A Suitability Assessment Criteria For Software Developers: Behavioral Assessment Using Psychometric Test, Jayati Gulati, Bharti Suri, Luiz Fernando Capretz, Bimlesh Wadhwa, Anu Singh Lather
Electrical and Computer Engineering Publications
A suitability assessment instrument for software developers was created using a psychometric criteria that identify the impact of behavior on the performance of software engineers. The instrument uses a questionnaire to help both individuals and IT recruiters to identify the psychological factors that affect the working performance of software engineers. Our study identifies the relationship between the behavioral drivers and the programming abilities of the subjects. In order to evaluate the instrument, a total of 100 respondents were compared on the basis of their programming skills and nine behavioral drivers. It was concluded that there is a direct relationship between …
Mgrre_Pureoilscouttickets_Brinen_1_21127020080000, Mgrre
Mgrre_Pureoilscouttickets_Brinen_1_21127020080000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Searching For Solar Kdar With Dune, The Dune Collaboration, A. Abed Abud, B. Abi, R. Acciarri, M. A. Acero, M. R. Adames, G. Adamov, D. Adams, M. Adinolfi, A. Aduszkiewicz, J. Aguilar, Z. Ahmad, J. Ahmed, B. Ali-Mohammadzadeh, T. Alion, K. Allison, S. Alonso Monsalve, M. Alrashed, C. Alt, A. Alton, Roberto Petti, Et. Al.
Searching For Solar Kdar With Dune, The Dune Collaboration, A. Abed Abud, B. Abi, R. Acciarri, M. A. Acero, M. R. Adames, G. Adamov, D. Adams, M. Adinolfi, A. Aduszkiewicz, J. Aguilar, Z. Ahmad, J. Ahmed, B. Ali-Mohammadzadeh, T. Alion, K. Allison, S. Alonso Monsalve, M. Alrashed, C. Alt, A. Alton, Roberto Petti, Et. Al.
Faculty Publications
The observation of 236 MeV muon neutrinos from kaon-decay-at-rest (KDAR) originating in the core of the Sun would provide a unique signature of dark matter annihilation. Since excellent angle and energy reconstruction are necessary to detect this monoenergetic, directional neutrino flux, DUNE with its vast volume and reconstruction capabilities, is a promising candidate for a KDAR neutrino search. In this work, we evaluate the proposed KDAR neutrino search strategies by realistically modeling both neutrino-nucleus interactions and the response of DUNE. We find that, although reconstruction of the neutrino energy and direction is difficult with current techniques in the relevant energy …
Algorithmic Correspondence For Relevance Logics, Bunched Implication Logics, And Relation Algebras Via An Implementation Of The Algorithm Pearl, Willem Conradie, Valentin Goranko, Peter Jipsen
Algorithmic Correspondence For Relevance Logics, Bunched Implication Logics, And Relation Algebras Via An Implementation Of The Algorithm Pearl, Willem Conradie, Valentin Goranko, Peter Jipsen
Mathematics, Physics, and Computer Science Faculty Articles and Research
The non-deterministic algorithmic procedure PEARL (acronym for ‘Propositional variables Elimination Algorithm for Relevance Logic’) has been recently developed for computing first-order equivalents of formulas of the language of relevance logics LR in terms of the standard Routley-Meyer relational semantics. It succeeds on a large class of axioms of relevance logics, including all so called inductive formulas. In the present work we re-interpret PEARL from an algebraic perspective, with its rewrite rules seen as manipulating quasi-inequalities interpreted over Urquhart’s relevant algebras, and report on its recent Python implementation. We also show that all formulae on which PEARL succeeds are canonical, i.e., …
Unary-Determined Distributive ℓ -Magmas And Bunched Implication Algebras, Natanael Alpay, Peter Jipsen, Melissa Sugimoto
Unary-Determined Distributive ℓ -Magmas And Bunched Implication Algebras, Natanael Alpay, Peter Jipsen, Melissa Sugimoto
Mathematics, Physics, and Computer Science Faculty Articles and Research
A distributive lattice-ordered magma (dℓ-magma) (A,∧,∨,⋅) is a distributive lattice with a binary operation ⋅ that preserves joins in both arguments, and when ⋅ is associative then (A,∨,⋅) is an idempotent semiring. A dℓ-magma with a top ⊤ is unary-determined if x⋅y=(x⋅⊤∧y)∨(x∧⊤⋅y). These algebras are term-equivalent to a subvariety of distributive lattices with ⊤ and two join-preserving unary operations p, q. We obtain simple conditions on p, q such that x⋅y=(px∧y)∨(x∧qy) is associative, commutative, idempotent and/or has an identity element. This generalizes previous results on the structure of doubly idempotent semirings and, in the case when the …
Three Essays On The Political Economics Of Conflict., Dripto Bakshi Dr.
Three Essays On The Political Economics Of Conflict., Dripto Bakshi Dr.
Doctoral Theses
A standard practice in the sociological and comparative-politics literature is to interpret ethnicity broadly as identity cleavages deriving from non-class categories such as language, religion, race and caste. In recent decades, conflicts between ‘ethnic’ communities, i.e., groups divided along non-class identity dimensions such as race, language, and, in particular, religion, have attained increasing salience in many countries. In response to this, a large analytical and empirical literature has developed both in political science and in political economics that seeks to explicate various aspects of this phenomenon. This thesis aims to throw light on two major aspects of ethnic conflicts. (1) …
Forage Legumes In Tropical Regions: Recent Advances And Future Challenges, D. R. Casagrande, B. G. C. Homem, R. M. Boddey
Forage Legumes In Tropical Regions: Recent Advances And Future Challenges, D. R. Casagrande, B. G. C. Homem, R. M. Boddey
IGC Proceedings (1993-2023)
Nitrogen input in tropical pastures increases forage and animal productivity. Forage legumes can fix atmospheric nitrogen and are the most economical way to add this nutrient to the soil. Our objective was to report the benefits of forage legumes in tropical pastures and possible strategies to implement different forage legumes. In tropical conditions, such as in Brazil, the use of forage legumes is still scarce. Even with low legume adoption on tropical pastures, forage legumes can provide ecosystem services. Increased animal productivity is the first ecosystem service provided by these legumes, mainly due to the addition of nitrogen that is …
Legumes As A Strategy For Reducing Greenhouse Gas Emissions Of Forage-Livestock Systems, N. Dilorenzo, José C. B. Dubeux Jr., L. Garcia, R. D. Guevara, S. Lagrange, J. Macadam, J. J. Villalba
Legumes As A Strategy For Reducing Greenhouse Gas Emissions Of Forage-Livestock Systems, N. Dilorenzo, José C. B. Dubeux Jr., L. Garcia, R. D. Guevara, S. Lagrange, J. Macadam, J. J. Villalba
IGC Proceedings (1993-2023)
Incorporation of legumes into forage systems has been a widely adopted strategy to increase pasture productivity and forage nutritive value, while reducing N inputs. Considering the population growth, and the diminishing land resources for food production, the need to increase the food supply will have to be balanced with the environmental impact of these systems, particularly their carbon footprint. Enteric methane production represents the largest source of greenhouse gas emissions from livestock. Certain forage legumes have evolved plant secondary compounds, such as tannins and other polyphenols, which have been associated with reductions in enteric methane emissions. Studies were conducted at …
Short-Term Slope Changes On Dokdo Island Identified From Ground-Based 3d Lidar Data, Jihyun Kang, Hyejin Kim, Jaegeum Park, Hyunchul Shin
Short-Term Slope Changes On Dokdo Island Identified From Ground-Based 3d Lidar Data, Jihyun Kang, Hyejin Kim, Jaegeum Park, Hyunchul Shin
International Journal of Geospatial and Environmental Research
This study was designed to determine the slope changes on Dokdo Island, focusing on Seodo islet (slopes consisting of colluvial debris) and Dongdo islet (slopes consisting of large-scale tafoni). To do so, we obtained high-resolution 3D LiDAR data in May and November 2020 and calculated the changes in slope shape and volume over this period. Our results showed that during this time, approximately 136 m3 of colluvial debris was removed from the slopes of Seodo islet and a boulder that had separated from the massive tuff breccia migrated approximately 5 cm downslope. The major causes of such rapid changes …
Interventions For Mitigating Drought-Related Livestock Mortality In Africa’S Pastoral Areas: A Review Of Their Relevance And Effectiveness With Special Reference To Kenya, Hallo Dabasso Bulle
Interventions For Mitigating Drought-Related Livestock Mortality In Africa’S Pastoral Areas: A Review Of Their Relevance And Effectiveness With Special Reference To Kenya, Hallo Dabasso Bulle
IGC Proceedings (1993-2023)
One of the key challenges facing pastoral livestock production in Africa’s drylands is the recurring drought which triggers shortage of grazing resources and massive losses of livestock. Though the pastoralists have traditional drought coping mechanisms, the changing land use, insecure land-tenure arrangements, and the declining natural resource base, have undermined the effectiveness of the mechanisms and worsen the drought impacts. Several interventions have hence been implemented over the years to mitigate the increasing drought impacts and to create more resilient pastoralist societies. Focusing on Kenyan pastoral areas, this study reviewed the relevance and effectiveness of various interventions in reducing the …
Importance Of Grazing Management In Improving Water Use Efficiency Of Tropical Forage Grasses, Juan A. Cardoso, J. D. L. C. Jiménez, Mauricio Sotelo, Idupulapati M. Rao, Michael Peters
Importance Of Grazing Management In Improving Water Use Efficiency Of Tropical Forage Grasses, Juan A. Cardoso, J. D. L. C. Jiménez, Mauricio Sotelo, Idupulapati M. Rao, Michael Peters
IGC Proceedings (1993-2023)
The growing number of extreme weather events has created the need to identify tropical forage grasses with greater water use efficiency (WUE) to cope with water-limited conditions. WUE can be defined as the ratio of forage biomass produced per unit of water used. However, WUE is a dynamic ratio that changes according to environmental gradients (e.g., water or nutrient availability) or ontogenetic drift (e.g., changes in root to shoot biomass allocation across phenological stages). Furthermore, genetic improvement leading to greater WUE is likely to result in smaller plants that produce less than the required forage biomass to sustain good animal …
Risk Of Climate-Related Impacts On Global Rangelands – A Review And Modelling Study, C. M. Godde, R. B. Boone, A. Ash, K. Waha, L. Sloat, P. Thornton, D. Mason-D’Croz, D. Mayberry, M. Herrero
Risk Of Climate-Related Impacts On Global Rangelands – A Review And Modelling Study, C. M. Godde, R. B. Boone, A. Ash, K. Waha, L. Sloat, P. Thornton, D. Mason-D’Croz, D. Mayberry, M. Herrero
IGC Proceedings (1993-2023)
Climate change threatens the ability of global rangelands to provide food, support livelihoods and deliver important ecosystems services. The extent and magnitude of potential impacts are however poorly understood. In this study, we review the risk of climate impacts along the rangeland systems food supply chain. We also present results from biophysical modelling simulations and spatial data analyses to identify where and to what extent rangelands may be at climatic risk. Although a quantification of the net impacts of climate change on rangeland production systems is beyond the reach of our current understanding, there is strong evidence that there will …
Cactus Forage Productivity Modelling Using Phygrow Software In A Semiarid Environment, M. J. D. Cândido, S. R. Maranhão, G. G. L. Araújo, A. Macedo, F. S. Campos, T. G. S. Silva
Cactus Forage Productivity Modelling Using Phygrow Software In A Semiarid Environment, M. J. D. Cândido, S. R. Maranhão, G. G. L. Araújo, A. Macedo, F. S. Campos, T. G. S. Silva
IGC Proceedings (1993-2023)
Plant growth modeling has been shown an increasing strategy to cope with the high demand for food supply, mainly in climate vulnerable areas, providing them to be used in agriculture worldwide. Concerning semiarid regions, the PHYGROW software has been promising to model plant growth, as cactus forage (‘Opuntia stricta’ cv. “Mexican elephant ear”) which was used in this study. Production data from 2017 and 2018 in Petrolina, Permambuco state, Brazil, with 12 replicates each year were considered. This region shows a very hot and dry climate and has an erratic and seasonal rainfall, which varies a lot in quantity, frequency …
Differential Effects Of Changed Precipitation Patterns On Co-Existing Dominant Species In Inner Mongolia Typical Grassland: Significance For Drought Management, S-X. Zhou, D-X. Wu
Differential Effects Of Changed Precipitation Patterns On Co-Existing Dominant Species In Inner Mongolia Typical Grassland: Significance For Drought Management, S-X. Zhou, D-X. Wu
IGC Proceedings (1993-2023)
More extreme precipitation patterns are occurring worldwide in the context of global climate change. These patterns are characterized by larger event size separated by longer within-season drought periods, which are novel climatic conditions to many ecosystems while their consequences are largely unknown. Consequences of changed precipitation patterns on grassland could be complex since the effects of precipitation interval and total precipitation quantity can interact greatly with each other, and can differ among co-existing dominant species. Meanwhile, few researches explored the impacts of changed precipitation patterns on the hidden half – grassland root system. The objective of this study is to …
Quantifying Greenhouse Gas Emissions Attributable To Smallholder Livestock Systems In Western Kenya: Cradle To Farm Gate Life Cycle Assessment, P. W. Ndung’U, T. Takahashi, C. J. L. Du Toit, M. Robertson-Dean, K. Butterbach-Bahl, G. Mcauliffe, L. Merbold, J. P. Goopy
Quantifying Greenhouse Gas Emissions Attributable To Smallholder Livestock Systems In Western Kenya: Cradle To Farm Gate Life Cycle Assessment, P. W. Ndung’U, T. Takahashi, C. J. L. Du Toit, M. Robertson-Dean, K. Butterbach-Bahl, G. Mcauliffe, L. Merbold, J. P. Goopy
IGC Proceedings (1993-2023)
Ruminants are central to the economic and nutritional life of much of sub-Saharan Africa, but cattle are now blamed for having disproportionately large negative environmental impact through (amongst other things) emissions of greenhouse gases. However, the exact mechanism behind these emissions is not well-understood and indeed accurate estimates themselves are lacking due to a paucity of reliable data. Employing individual animal records obtained at regular farm visits, this study quantified emissions intensities (EIs) of smallholder farms in three counties of Western Kenya through life cycle assessment (LCA). Crude protein (CP) was chosen as the functional unit to capture outputs of …
Long-Term N Addition, Not Warming, Increases Net Ecosystem Co2 Exchange In A Desert Steppe In Northern China, Guodong Han, Qian Wu
Long-Term N Addition, Not Warming, Increases Net Ecosystem Co2 Exchange In A Desert Steppe In Northern China, Guodong Han, Qian Wu
IGC Proceedings (1993-2023)
Grasslands cover a major part of the global terrestrial area and provide important ecosystem functions such as sequestration of carbon (C). Desert steppes are unique ecosystems with properties in between desert and grasslands. They are considered to be vulnerable ecosystems that are at risk of desertification due to global change. To provide a robust prediction of the effect of climate warming and increased nitrogen (N) deposition on desert steppe, long-term studies that capture the annual variation in precipitation are needed. We conducted a 12-year field experiment in a desert steppe which showed that warming did not change ecosystem C exchange …
Exploring Water Use And Production Dynamics Of Indigenous Protected Sikumi Forest In South Western Zimbabwe, O. Gwate
IGC Proceedings (1993-2023)
Monitoring changes in carbon and water vapour fluxes over a landscape helps in understanding ecosystem functioning and improves vegetation management. To understand potential shifts in ecosystem functioning, MoDerate Resolution Imaging Spectroradiometer (MODIS) evapotranspiration (ET), net photosynthesis, gross primary production and net primary production data were explored in Sikumi forest dominated by three species clusters (Teak forest woodland, Miombo woodland and savannah, and Vachellia). Measures of ecosystem stability including water use efficiency (WUE), rainfall use efficiency (RUE), evaporative index, and carbon use efficiency (CUE) were assessed for trends and step changes together with rainfall and evapotranspiration data. Miombo woodland and …
Fabrication Of An Autonomously Self-Healing Flexible Thin-Film Capacitor By Slot-Die Coating, Susanna Vu, Gnanesh Nagesh, Nastaran Yousefi, John F. Trant, David S.K. Ting, M. Jalal Ahamed, Simon Rondeau-Gagné
Fabrication Of An Autonomously Self-Healing Flexible Thin-Film Capacitor By Slot-Die Coating, Susanna Vu, Gnanesh Nagesh, Nastaran Yousefi, John F. Trant, David S.K. Ting, M. Jalal Ahamed, Simon Rondeau-Gagné
Chemistry and Biochemistry Publications
Flexible pressure sensors with self-healing abilities for wearable electronics are being developed, but generally either lack autonomous self-healing properties or require sophisticated material processing methods. To address this challenge, we developed flexible, low-cost and autonomously self-healing capacitive sensors using a crosslinked poly(dimethylsiloxane) through metal-ligand interactions processed into thin films via slot-die coating. These films have excellent self-healing properties, approximately 1.34 × 105 μm3 per hour at room temperature and 2.87 × 105 μm3 per hour at body temperature (37 °C). Similarly, no significant change in capacitance under bending strain was observed on these flexible thin-films when assembled on poly(ethyleneterephthalate) (PET) …
Synergistic Anticancer Response Of Curcumin And Piperine Loaded Lignin-G-P (Nipam-Co-Dmaema) Gold Nanogels Against Glioblastoma Multiforme, Xinyi Zhao, Bilal Javad, Daxing Cui, James Curtin, Furong Tian
Synergistic Anticancer Response Of Curcumin And Piperine Loaded Lignin-G-P (Nipam-Co-Dmaema) Gold Nanogels Against Glioblastoma Multiforme, Xinyi Zhao, Bilal Javad, Daxing Cui, James Curtin, Furong Tian
Articles
Glioblastoma multiforme (GBM) is the most aggressive and commonly diag- 11 nosed brain cancer and presents a strong resistance to routine chemotherapeutic drugs. 12 The present study involves the synthesis of Lignin-g- p (NIPAM-co-DMAEMA) gold 13 nanogel, loaded with curcumin and piperine to treat GBM. The application has three 14 functions: (1) overcome the limitations of biodistribution, (2) enhance the toxicity of an- 15 ticancer drugs against GBM, (3) identify the uptake pathway. Atom transfer radical 16 polymerization was used to synthesize the Lignin-g-PNIPAM network, crosslinked with 17 the gold nanoparticles (GNPs) to self-assemble into nanogels. The size distribution and …
Mgrre_Pureoilscouttickets_Ackerman_1_21127019060000, Mgrre
Mgrre_Pureoilscouttickets_Ackerman_1_21127019060000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Facilitating Team-Based Data Science: Lessons Learned From The Dsc-Wav Project, Chelsey Legacy, Andrew Zieffler, Benjamin S. Baumer, Valerie Barr, Nicholas J. Horton
Facilitating Team-Based Data Science: Lessons Learned From The Dsc-Wav Project, Chelsey Legacy, Andrew Zieffler, Benjamin S. Baumer, Valerie Barr, Nicholas J. Horton
Statistical and Data Sciences: Faculty Publications
While coursework provides undergraduate data science students with some relevant analytic skills, many are not given the rich experiences with data and computing they need to be successful in the workplace. Additionally, students often have limited exposure to team-based data science and the principles and tools of collaboration that are encountered outside of school. In this paper, we describe the DSC-WAV program, an NSF-funded data science workforce development project in which teams of undergraduate sophomores and juniors work with a local non-profit organization on a data-focused problem. To help students develop a sense of agency and improve confidence in their …
Towards Accurate Run-Time Hardware-Assisted Stealthy Malware Detection: A Lightweight, Yet Effective Time Series Cnn-Based Approach, Hossein Sayadi, Yifeng Gao, Hosein Mohammadi Makrani, Jessica Lin, Paulo Cesar Costa, Setareh Rafatirad, Houman Homayoun
Towards Accurate Run-Time Hardware-Assisted Stealthy Malware Detection: A Lightweight, Yet Effective Time Series Cnn-Based Approach, Hossein Sayadi, Yifeng Gao, Hosein Mohammadi Makrani, Jessica Lin, Paulo Cesar Costa, Setareh Rafatirad, Houman Homayoun
Computer Science Faculty Publications and Presentations
According to recent security analysis reports, malicious software (a.k.a. malware) is rising at an alarming rate in numbers, complexity, and harmful purposes to compromise the security of modern computer systems. Recently, malware detection based on low-level hardware features (e.g., Hardware Performance Counters (HPCs) information) has emerged as an effective alternative solution to address the complexity and performance overheads of traditional software-based detection methods. Hardware-assisted Malware Detection (HMD) techniques depend on standard Machine Learning (ML) classifiers to detect signatures of malicious applications by monitoring built-in HPC registers during execution at run-time. Prior HMD methods though effective have limited their study on …
Quantifying How Coastal Flooding And Stormwater Runoff Drive Spatiotemporal Variability In Carbon And Nutrient Processing In Urban Aquatic Ecosystems, Matthew A. Smith
Quantifying How Coastal Flooding And Stormwater Runoff Drive Spatiotemporal Variability In Carbon And Nutrient Processing In Urban Aquatic Ecosystems, Matthew A. Smith
FIU Electronic Theses and Dissertations
Coastal river networks alter the transport and transformation of dissolved organic carbon (DOC) and dissolved organic matter (DOM), which can vary in concentration and composition across spatiotemporal scales. Given climate-induced shifts in rainfall and tidal variation in low-lying coastal regions, there is an increasing need to quantify effects of flooding on biogeochemical cycling. Specifically, urban flooding is becoming increasingly common due to biophysical alterations to hydrology from urbanization and climate change. Urban ecosystems have been characterized as having a distinct biogeochemistry compared to other systems, largely due to increased frequency and magnitude of riverine and coastal flooding. Consequently, the role …
Self-Immolative Dendron Hydrogels, Karanpreet Gill, Xueli Mei, Elizabeth Gillies
Self-Immolative Dendron Hydrogels, Karanpreet Gill, Xueli Mei, Elizabeth Gillies
Chemistry Publications
Smart hydrogels are of great interest in areas such as drug delivery and sensing. Dendrimer-based hydrogels can exhibit tunable properties due to their structural precision. We prepared hydrogels from self-immolative dendrons. Controlled hydrogel degradation in response to light was demonstrated and the hydrogel properties as a function of dendron generation were compared.
Towards Early Warning Signals For Desertification, Sara Klingenfuss, Sara Heshmati, Jan C. Ruppert, Katja Tielbörger
Towards Early Warning Signals For Desertification, Sara Klingenfuss, Sara Heshmati, Jan C. Ruppert, Katja Tielbörger
IGC Proceedings (1993-2023)
Dryland ecosystems cover a large share of the world’s terrestrial surface. Deficiency and spatio-temporal variability of precipitation as well as low vegetation growth rates make dry rangelands prone to degradation, especially under changing climate and intensified land use. Degradation often occurs gradually but sometimes, a sudden and surprising shift from a healthy to a degraded rangeland can be observed, where perennial grasses are lost, and bare soil is exposed. If such changes are sudden and irreversible, they are coined a tipping point. Due to their abrupt appearance, it is a great challenge to discover early warning signals that precede the …
Stakeholder Attitudes Towards Wildlife-Based Land Use In Namibia’S Kunene Region, R. Luetkemeier, R. Kraus, M. Mbidzo, M. Hauptfleisch, L. Liehr
Stakeholder Attitudes Towards Wildlife-Based Land Use In Namibia’S Kunene Region, R. Luetkemeier, R. Kraus, M. Mbidzo, M. Hauptfleisch, L. Liehr
IGC Proceedings (1993-2023)
African rangeland systems are characterized by competing resource use for livestock farming and wildlife conservation. In Namibia’s rangeland savannahs, cattle farming for commercial and subsistence purposes is common, shaping the land use system of the country’s north. Local cattle stocking rates increased over the past decades and triggered ecosystem degradation that became visible in the last drought-stricken years. Cattle was lost, meat prices dropped and livelihoods were threatened. It is assumed that current land use activities are pushing the rangeland ecosystem towards ecological tipping points. Alternative approaches to use the scarce resources of rangelands in a more sustainable way may …
Strategies For Assessing Grassland Degradation With Biogeochemical Models, S. Rolinski, S. B. Wirth, C. Müller, B. Tietjen
Strategies For Assessing Grassland Degradation With Biogeochemical Models, S. Rolinski, S. B. Wirth, C. Müller, B. Tietjen
IGC Proceedings (1993-2023)
Marginal grasslands provide the basis for livestock rearing and rural livelihoods globally, but are subject to permanent degradation from mismanagement and climate change. Global biogeochemical models are so far not able to represent degradation tipping points in marginal grasslands because plant growth is dependent only on bio-climatic conditions and nutrient availability. Due to their central role for sustaining livelihoods, this lack of representation in such models needs to be addressed. We present an idea on processes and interactions to be considered and on the actual implementation of necessary changes. The model for which we exemplarily develop implementation strategies, LPJmL, accounts …
Rangeland Management In Namibia In The Face Of Looming Desertification: Insights From The Freehold Farmers’ Perspective, Katja Brinkmann, Stefan Liehr, Lena Bickel
Rangeland Management In Namibia In The Face Of Looming Desertification: Insights From The Freehold Farmers’ Perspective, Katja Brinkmann, Stefan Liehr, Lena Bickel
IGC Proceedings (1993-2023)
No abstract provided.