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Intraspecific Variation Among Clones Of A Naıve Rare Grass, David J. Gibson, Justin Dewey, Helene Goosens, Misty M. Dodd
Intraspecific Variation Among Clones Of A Naıve Rare Grass, David J. Gibson, Justin Dewey, Helene Goosens, Misty M. Dodd
Publications
Intraspecific variation can have a major impact on plant community composition yet there is little information available on the extent that such variation by an already established species affects interspecific interactions of an invading species. The current research examined the competitiveness of clones of a globally rare but locally common native grass, Calamagrostis porteri ssp. insperata to invasion by Alliaria petiolata, a non-native invasive species. A greenhouse experiment was conducted twice over consecutive years in which 15 clones from three populations of Calamagrostis were paired with rosettes of Alliaria in pots containing native forest soil previously uninvaded by Alliaria …
Magnetocaloric And Magnetic Properties Of Ni2Mn1-XCuXGa Heusler Alloys: An Insight From The Direct Measurements And Ab Initio And Monte Carlo Calculations, V. Sokolovskiy, V. Buchelnikov, K. Skokov, O. Gutfleisch, D. Karpenkov, Yu Koshkid'ko, H. Miki, I. Dubenko, Naushad Ali, S. Stadler, V. Khovaylo
Magnetocaloric And Magnetic Properties Of Ni2Mn1-XCuXGa Heusler Alloys: An Insight From The Direct Measurements And Ab Initio And Monte Carlo Calculations, V. Sokolovskiy, V. Buchelnikov, K. Skokov, O. Gutfleisch, D. Karpenkov, Yu Koshkid'ko, H. Miki, I. Dubenko, Naushad Ali, S. Stadler, V. Khovaylo
Publications
We calculated magnetic exchange constants and magnetocaloric properties of Ni2Mn1-xCuxGa Heusler alloys by ab initio and Monte Carlo methods. The ab initio study of the influence of the Cu excess x on the strength of magnetic interactions revealed that Cu weakens Mn-Ni interaction and has a complex impact on the Mn-Mn interactions. Theoretically calculated magnetic phase diagram of Ni2Mn1-xCuxGa is in a good agreement with available experimental data. Calculated by the Monte Carlo method the isothermal magnetic entropy change Delta Smag in a Ni2Mn0.75 …
The Amphibians And Reptiles Of Manu National Park And Its Buffer Zone, Amazon Basin And Eastern Slopes Of The Andes, Peru, Alessandro Catenazzi, Edgar Lehr, Rudolf Von May
The Amphibians And Reptiles Of Manu National Park And Its Buffer Zone, Amazon Basin And Eastern Slopes Of The Andes, Peru, Alessandro Catenazzi, Edgar Lehr, Rudolf Von May
Publications
We compile a list of all amphibians and reptiles known to occur within Manu National Park, Peru and its buffer zone, located in one of the world’s biodiversity hotspots. Covering approximately 0.01% of the planet’s terrestrial surface, this protected area preserves 155 species of amphibians and 132 species of reptiles, corresponding to 2.2% and 1.5% respectively of the known diversity for these groups. Moreover, Manu National Park preserves natural habitats and populations of one critically endangered (Atelopus erythropus), three endangered (Bryophryne cophites, Pristimantis cosnipatae and Psychrophrynella usurpator), three vulnerable amphibians (Atelopus tricolor, Gastrotheca excubitor, Rhinella …
Caring For An Infant With Trisomy 18: A Case Study And Guidelines, Deborah Bruns
Caring For An Infant With Trisomy 18: A Case Study And Guidelines, Deborah Bruns
Publications
Much of the literature describes the prognosis for infants with full trisomy 18 as bleak. The case study offered here provides an overview of an infant with this diagnosis who lived for 88.5 days in a Level III neonatal intensive care unit. Care decisions (medical and basic care) and their outcomes are described along with implications for care for infants with a diagnosis often characterized as incompatible with life. The need for information about treatment options and collaboration among an infant’s medical team is emphasized.
No Effect Of Seed Source On Multiple Aspects Of Ecosystem Functioning During Ecological Restoration: Cultivars Compared To Local Ecotypes Of Dominant Grasses, Sara G. Baer, David J. Gibson, Danny J. Gustafson, Allison M. Benscoter, Lewis K. Reed, Ryan E. Campbell, Ryan P. Klopf, Jason E. Willand, Ben R. Wodika
No Effect Of Seed Source On Multiple Aspects Of Ecosystem Functioning During Ecological Restoration: Cultivars Compared To Local Ecotypes Of Dominant Grasses, Sara G. Baer, David J. Gibson, Danny J. Gustafson, Allison M. Benscoter, Lewis K. Reed, Ryan E. Campbell, Ryan P. Klopf, Jason E. Willand, Ben R. Wodika
Publications
Genetic principles underlie recommendations to use local seed, but a paucity of information exists on the genetic distinction and ecological consequences of using different seed sources in restorations. We established a field experiment to test whether cultivars and local ecotypes of dominant prairie grasses were genetically distinct and differentially influenced ecosystem functioning. Whole plots were assigned to cultivar and local ecotype grass sources. Three subplots within each whole plot were seeded to unique pools of subordinate species. The cultivar of the increasingly dominant grass, Sorghastrum nutans, was genetically different than the local ecotype, but genetic diversity was similar between the …
Phase Diagram And Magnetocaloric Effects In Aluminum Doped Mnnige Alloys, Abdiel Quetz, Tampas Samanta, Igor Dubenko, Michael J. Kangas, Julia Y. Chan, Shane Stadler, Naushad Ali
Phase Diagram And Magnetocaloric Effects In Aluminum Doped Mnnige Alloys, Abdiel Quetz, Tampas Samanta, Igor Dubenko, Michael J. Kangas, Julia Y. Chan, Shane Stadler, Naushad Ali
Publications
The magnetocaloric and thermomagnetic properties of the MnNiGe1-xAlx system have been studied by temperature- dependent x- ray diffraction, differential scanning calorimetry (DSC), and magnetization measurements. The partial substitution of Al for Ge in MnNiGe1-xAlx results in a first order magnetostructural transition (MST) from a hexagonal ferromagnetic to an orthorhombic antiferromagnetic phase at 186K (for x 0.09). A large magnetic entropy change of Delta SM = - 17.6 J/kg K for DeltaH = 5T was observed in the vicinity of TM 186K for x 0.09. The value is comparable to those of giant …
Image Free-Viewing As Intrinsically-Motivated Exploration: Estimating The Learnability Of Center-Of-Gaze Image Samples In Infants And Adults, Matthew Schlesinger, Dima Amso
Image Free-Viewing As Intrinsically-Motivated Exploration: Estimating The Learnability Of Center-Of-Gaze Image Samples In Infants And Adults, Matthew Schlesinger, Dima Amso
Publications
We propose that free viewing of natural images in human infants can be understood and analyzed as the product of intrinsically-motivated visual exploration. We examined this idea by first generating five sets of center-of-gaze (COG) image samples, which were derived by presenting a series of natural images to groups of both real observers (i.e., 9-month-olds and adults) and artificial observers (i.e., an image-saliency model, an image-entropy model, and a random-gaze model). In order to assess the sequential learnability of the COG samples, we paired each group of samples with a simple recurrent network, which was trained to reproduce the corresponding …
Role Of Forefinger And Thumb Loops In Production Of Ψ54 And Ψ55 In Trnas By Archaeal Pus10, Archi Joardar, Sujata Jana, Elisabeth Fitzek, Priyatansh Gurha, Mrinmoyee Majumder, Kunal Chatterjee, Matt Geisler, Ramesh Gupta
Role Of Forefinger And Thumb Loops In Production Of Ψ54 And Ψ55 In Trnas By Archaeal Pus10, Archi Joardar, Sujata Jana, Elisabeth Fitzek, Priyatansh Gurha, Mrinmoyee Majumder, Kunal Chatterjee, Matt Geisler, Ramesh Gupta
Publications
Pseudouridines (Ψ) are found in structurally and functionally important regions of RNAs. Six families of Ψ synthases, TruA, TruB, TruD, RsuA, RluA, and Pus10 have been identified. Pus10 is present in Archaea and Eukarya. While most archaeal Pus10 produce both tRNA Ψ54 and Ψ55, some produce only Ψ55. Interestingly, human PUS10 has been implicated in apoptosis and Crohn's and Celiac diseases. Homology models of archaeal Pus10 proteins based on the crystal structure of human PUS10 reveal that there are subtle structural differences in all of these Pus10 proteins. These observations suggest that structural changes in homologous proteins may lead to …
Aligning Components Of Recognition And Response And Response To Intervention To Improve Transition To Primary School, Corey Pierce Ph.D., Deborah Bruns
Aligning Components Of Recognition And Response And Response To Intervention To Improve Transition To Primary School, Corey Pierce Ph.D., Deborah Bruns
Publications
Children face numerous transitions throughout their school careers. Research has demonstrated that early transitions can positively or negatively impact future school performance. Establishing effective models to ensure carryover of instructional strategies and interventions into early elementary school can increase the likelihood children will have a smooth transition to kindergarten from preschool. Response and Recognition (R&R) is a framework for delivering a continuum of instructional strategies and interventions to meet children’s needs at the preschool level. Response to Intervention (RtI) is a framework for implementing a continuum of instructional strategies and interventions to meet children’s needs at the K-12 level. The …
An L-Moment Based Characterization Of The Family Of Dagum Distributions, Mohan D. Pant, Todd C. Headrick
An L-Moment Based Characterization Of The Family Of Dagum Distributions, Mohan D. Pant, Todd C. Headrick
Publications
This paper introduces a method for simulating univariate and multivariate Dagum distributions through the method of L-moments and L-correlation. A method is developed for characterizing non-normal Dagum distributions with controlled degrees of L-skew, L-kurtosis, and L-correlations. The procedure can be applied in a variety of contexts such as statistical modeling (e.g., income distribution, personal wealth distributions, etc.) and Monte Carlo or simulation studies. Numerical examples are provided to demonstrate that -moment-based Dagum distributions are superior to their conventional moment-based analogs in terms of estimation and distribution fitting. Evaluation of the proposed method also demonstrates that the estimates of L-skew, L-kurtosis, …
Posterior Hox Gene Reduction In An Arthropod: Ultrabithorax And Abdominal-B Are Expressed In A Single Segment In The Mite Archegozetes Longisetosus., Austen A Barnett, Richard H. Thomas
Posterior Hox Gene Reduction In An Arthropod: Ultrabithorax And Abdominal-B Are Expressed In A Single Segment In The Mite Archegozetes Longisetosus., Austen A Barnett, Richard H. Thomas
Publications
BACKGROUND: Hox genes encode transcription factors that have an ancestral role in all bilaterian animals in specifying regions along the antero-posterior axis. In arthropods (insects, crustaceans, myriapods and chelicerates), Hox genes function to specify segmental identity, and changes in Hox gene expression domains in different segments have been causal to the evolution of novel arthropod morphologies. Despite this, the roles of Hox genes in arthropods that have secondarily lost or reduced their segmental composition have been relatively unexplored. Recent data suggest that acariform mites have a reduced segmental component of their posterior body tagma, the opisthosoma, in that only two …
Bayesian Hierarchical Modeling With 3pno Item Response Models, Yanyan Sheng, Todd C. Headrick
Bayesian Hierarchical Modeling With 3pno Item Response Models, Yanyan Sheng, Todd C. Headrick
Publications
Fully Bayesian estimation has been developed for unidimensional IRT models. In this context, prior distributions can be specified in a hierarchical manner so that item hyperparameters are unknown and yet still have their own priors. This type of hierarchical modeling is useful in terms of the three-parameter IRT model as it reduces the difficulty of specifying model hyperparameters that lead to adequate prior distributions. Further, hierarchical modeling ameliorates the noncovergence problem associated with nonhierarchical models when appropriate prior information is not available. As such, a Fortran subroutine is provided to implement a hierarchical modeling procedure associated with the three-parameter normal …
Gastrointestinal Helminths Of Two Species Of Mouse Opossums (Marmosa Demerarae And Marmosa Murina) From French Guiana, Beth Byles, Francois Catzeflis, R Philip Scheibel, Agustin Jimenez-Ruiz
Gastrointestinal Helminths Of Two Species Of Mouse Opossums (Marmosa Demerarae And Marmosa Murina) From French Guiana, Beth Byles, Francois Catzeflis, R Philip Scheibel, Agustin Jimenez-Ruiz
Publications
The woolly mouse opossum Marmosa demerarae and the murine opossum, Marmosa murina, occur in sympatry across most of their range; however, they are not syntopic in that M. demerarae is more abundant in the canopy of primary and secondary forest, while M. murina is scansorial and appears to be more abundant in lower forest strata. We herein present a survey and comparison of the helminths occurring in these 2 species in French Guiana based on examinations of 18 individuals of M. murina and 21 individuals of M. demerarae. At the level of the component community, species richness was …
Duck Productivity In Restored Species-Rich Native And Species-Poor Non-Native Plantings, Ryan Haffele, Michael E. Eichholz, Cami S. Dixon
Duck Productivity In Restored Species-Rich Native And Species-Poor Non-Native Plantings, Ryan Haffele, Michael E. Eichholz, Cami S. Dixon
Publications
Conservation efforts to increase duck production have led the United States Fish and Wildlife Service to restore grasslands with multi-species (3-5) mixtures of introduced cool season vegetation often termed dense nesting cover (DNC). The effectiveness of DNC to increase duck production has been variable, and maintenance of the cover type is expensive. In an effort to decrease the financial and ecological costs (increased carbon emissions from plowing and reseeding) of maintaining DNC and provide a long-term, resilient cover that will support a diversity of grassland fauna, restoration of multi-species (16-32) plantings of native plants has been explored. We investigated the …
Mn1-XFeXCoge: A Strongly Correlated Metal In The Proximity Of A Noncollinear Ferromagnetic State, Tampas Samanta, Igor Dubenko, Abdiel Quetz, Joseph Prestigiacomo, Philip W. Adams, Shane Stadler, Naushad Ali
Mn1-XFeXCoge: A Strongly Correlated Metal In The Proximity Of A Noncollinear Ferromagnetic State, Tampas Samanta, Igor Dubenko, Abdiel Quetz, Joseph Prestigiacomo, Philip W. Adams, Shane Stadler, Naushad Ali
Publications
An unusually large Kadowaki-Woods ratio of A/gamma2 similar to 43 mu Omega.cm.mol2.K2.J-2 has been observed for intermetallic Mn1-xFexCoGe compounds in the proximity of x = 0.2 where the magnetic state of itinerant electrons system changes. The ratio is approximately four times larger than observed for heavy fermion systems. The manifestation of the strong electron correlations can be realized from the anisotropic origin of the effect through the substantial reduction of interlayer transport of heavy quasiparticles with comparable mean-free path and interlayer spacing in the proximity of a noncollinear ferromagnetic state …
Large Magnetocaloric Effects Over A Wide Temperature Range In Mnco1-XZnXGe, Tampas Samanta, Igor Dubenko, Abdiel Quetz, Shane Stadler, Naushad Ali
Large Magnetocaloric Effects Over A Wide Temperature Range In Mnco1-XZnXGe, Tampas Samanta, Igor Dubenko, Abdiel Quetz, Shane Stadler, Naushad Ali
Publications
The magnetic and structural transitions can be controlled to coincide by partial substitution of Zn for Co in MnCo1-xZnxGe, leading to a large magnetocaloric effects over a wide temperature range. The magnetostructural transition from paramagnetic to ferromagnetic state results in magnetic entropy changes (Delta SM) of 26 J/kg K at 327K for Delta H = 5 T in the case of x = 0.045. Interestingly, a structurally driven first-order phase transition between two high magnetization states as observed for x = 0.05 and 0.06 also lead to large values of -Delta SM = …
Magnetic Properties And Phase Transitions Of Gadolinium-Infused Carbon Nanotubes, Abdiel Quetz, Igor Dubenko, Tampas Samanta, Herbert Vinson, Saikat Talapatra, Naushad Ali, Shane Stadler
Magnetic Properties And Phase Transitions Of Gadolinium-Infused Carbon Nanotubes, Abdiel Quetz, Igor Dubenko, Tampas Samanta, Herbert Vinson, Saikat Talapatra, Naushad Ali, Shane Stadler
Publications
Carbon nanotube (CNT)/metal-cluster-based composites are envisioned as new materials that possess unique electronic properties which may be utilized in a variety of future applications. Superparamagnetic behavior was reported for CNTs with Gd ions introduced into the CNT openings by internal loading with an aqueous GdCl3 chemical process. In the current work, the magnetic properties of the CNT/Gd composites were obtained by the joining and annealing of Gd metal and CNTs at 850 degrees C for 48 h. Energy dispersive X-ray analysis shows the presence of Gd intermingled with the CNT walls with maximum and average Gd concentrations of about …
Statistical Downscaling In Climatology, Justin T. Schoof
Statistical Downscaling In Climatology, Justin T. Schoof
Publications
No abstract provided.
The Effects Of Geographical Distribution On The Reliability Of Wind Energy, Samuel Martin Fisher, Justin T. Schoof, Christopher Lant, Matthew Therrell
The Effects Of Geographical Distribution On The Reliability Of Wind Energy, Samuel Martin Fisher, Justin T. Schoof, Christopher Lant, Matthew Therrell
Publications
No abstract provided.
Enhancement Of Ferromagnetism By Cr Doping In Ni-Mn-Cr-Sb Heusler Alloys, Mahmud Khan, Igor Dubenko, Shane Stadler, J. Jung, S. S. Stoyko, Arthur Mar, Abdiel Quetz, Tampas Samanta, Naushad Ali, K. H. Chow
Enhancement Of Ferromagnetism By Cr Doping In Ni-Mn-Cr-Sb Heusler Alloys, Mahmud Khan, Igor Dubenko, Shane Stadler, J. Jung, S. S. Stoyko, Arthur Mar, Abdiel Quetz, Tampas Samanta, Naushad Ali, K. H. Chow
Publications
A series of Mn rich Ni50Mn37-xCrxSb13 Heusler alloys have been investigated by dc magnetization and electrical resistivity measurements. Due to the weakening of the Ni-Mn hybridization, the martensitic transition shifts to lower temperatures with increasing Cr concentration, while the saturation magnetization at 5K increases. The magnetoresistance and exchange bias properties are dramatically suppressed with increasing Cr concentration. The observed behaviors suggest that substitution of Cr for Mn in Ni50Mn37-xCrxSb13 Heusler alloys not only destabilizes the martensitic phase but also enhances ferromagnetism in the system. The possible …
Evidence Of Martensitic Phase Transitions In Magnetic Ni-Mn-In Thin Films, A. Sokolov, Le Zhang, Igor Dubenko, Tampas Samanta, Shane Stadler, Naushad Ali
Evidence Of Martensitic Phase Transitions In Magnetic Ni-Mn-In Thin Films, A. Sokolov, Le Zhang, Igor Dubenko, Tampas Samanta, Shane Stadler, Naushad Ali
Publications
Ni 50Mn35In15 Heusler alloy thin films (with thicknesses of about 10 nm) have been grown on single crystal MgO and SrTiO3 (STO) (100) substrates using a laser-assisted molecular beam epitaxy method. Films of mixed austenitic and martensitic phases and of pure martensitic phase have been detected for those grown on MgO and STO substrates, respectively. Thermomagnetic curves were measured using a SQUID magnetometer and are consistent with those of off-stoichiometric In-based bulk Heusler alloys, including a martensitic transition at T = 315 K for films grown on MgO. The differences in the properties of the …
The Β-Cyanoalanine Pathway Is Involved In The Response To Water Deficit In Arabidopsis Thaliana., Marylou Machingura, Aissatou Sidibe, Andrew J Wood, Stephen Ebbs
The Β-Cyanoalanine Pathway Is Involved In The Response To Water Deficit In Arabidopsis Thaliana., Marylou Machingura, Aissatou Sidibe, Andrew J Wood, Stephen Ebbs
Publications
The β-cyanoalanine pathway is primarily responsible for detoxification of excess cyanide produced by plants. Recent evidence suggests that cyanide detoxification via this pathway may be involved in the response and tolerance to water deficit in plants. The aim of this study was to explore this role in Arabidopsis thaliana in greater detail. The first objective was to establish responsiveness of the pathway to the magnitude and duration of water deficit. The second objective was to examine how interruption of single genes (AtCysA1, AtCysC1 and AtNIT4) encoding enzymes of the pathway influenced the ability to metabolize cyanide and withstand water deficit. …
A Proposed Measure Of Internal Consistency Reliablilty: Coefficient L-Alpha, Todd C. Headrick, Yanyan Sheng
A Proposed Measure Of Internal Consistency Reliablilty: Coefficient L-Alpha, Todd C. Headrick, Yanyan Sheng
Publications
Data sets in the social and behavioral sciences are often heavy-tailed. Previous studies have demonstrated that small samples or leptokurtic distributions adversely affect the performance of coefficient alpha. To address these concerns, we propose an alternative estimator of reliability based on L-comoments. The empirical results of this study demonstrate that when sample sizes are small and distributions are heavy-tailed that the proposed coefficient L-alpha has substantial advantages over Cronbach’s estimator of reliability in terms of relative bias and relative standard error.
Erring On The Side Of Life: Children With Rare Trisomy Conditions, Medical Interventions And Quality Of Life, Deborah Bruns
Erring On The Side Of Life: Children With Rare Trisomy Conditions, Medical Interventions And Quality Of Life, Deborah Bruns
Publications
he prevailing viewpoint on children with rare trisomy conditions such as trisomy 18 (t18) and trisomy 13 (t13) is almost uniformly negative. Yet, case studies offer information about long-term survivors. What is missing in the discussion is an unbiased examination of surviving children within the context of necessary, rather than “aggressive”, medical interventions and overall quality of life. A move beyond palliative or comfort care must be an option for this population. There must be a move toward valuation of life and corresponding provision of treatment and examination of developmental gains rather than limited intervention or palliative care for infants …
Reinnervation Of Vastus Lateralis Is Increased Significantly In Seniors (70 Years Old) With A Lifelong History Of High-Level Exercise, Amber L. Pond
Reinnervation Of Vastus Lateralis Is Increased Significantly In Seniors (70 Years Old) With A Lifelong History Of High-Level Exercise, Amber L. Pond
Publications
It has long been recognized that histological changes observed in aging muscle suggest that denervation contributes to muscle deterioration and that disuse accelerates the process while running activity, sustained for decades, protects against age-related loss of motor units. here we show at the histological level that lifelong increased physical activity promotes reinnervation of muscle fibers. In muscle biopsies from 70-year old men with a lifelong history of high-level physical activity, we observed a considerable increase in fiber-type groupings (almost exclusively of the slow type) in comparison to sedentary seniors, revealing a large population of reinnervated muscle fibers in the sportsmen. …
An External Focus Of Attention Enhances Manual Tracking Performance, Matthew Schlesinger, Jared Porter, Robert Russell
An External Focus Of Attention Enhances Manual Tracking Performance, Matthew Schlesinger, Jared Porter, Robert Russell
Publications
The present study investigated the enhancement effects of an external focus of attention (FOA) in the context of a manual tracking task, in which participants tracked both visible and occluded targets. Three conditions were compared, which manipulated the distance of the FOA from the participant as well as the external/internal dimension. As expected, an external FOA resulted in lower tracking errors than an internal FOA. In addition, analyses of participants’ movement patterns revealed a systematic shift toward higher-frequency movements in the external FOA condition, consistent with the idea that an external FOA exploits the natural movement dynamics available during skilled …
Using Pectoral Fin Rays As A Non-Lethal Aging Structure For Smallmouth Bass: Precision With Otolith Age Estimates And The Importance Of Reader Experience, Neil P. Rude, William D. Hintz, Jacob D. Norman, Kenson L. Kanczuzewski, Andrew J. Yung, Keith D. Hofer, Gregory Whitledge
Using Pectoral Fin Rays As A Non-Lethal Aging Structure For Smallmouth Bass: Precision With Otolith Age Estimates And The Importance Of Reader Experience, Neil P. Rude, William D. Hintz, Jacob D. Norman, Kenson L. Kanczuzewski, Andrew J. Yung, Keith D. Hofer, Gregory Whitledge
Publications
We evaluated the potential utility of pectoral fin rays as non-lethal aging structures for smallmouth bass (Micropterus dolomieu). We compared age estimates among three reading pairs and against sectioned sagittal otolith age estimates for precision. Reading pair bias was not detected, although the highest rates of age estimate agreement occurred between reading pairs with high and moderate aging experience. Precision of otolith and fin ray age estimates were equivalent based on between-structure comparisons of average percent error and coefficient of variation. However, fin rays underestimated fish age compared to otoliths for older fish, especially when aged by less-experienced …
A Method For Simulating Burr Type Iii And Type Xii Distributions Through L-Moments And L-Correlations, Mohan D. Pant, Todd C. Headrick
A Method For Simulating Burr Type Iii And Type Xii Distributions Through L-Moments And L-Correlations, Mohan D. Pant, Todd C. Headrick
Publications
This paper derives the Burr Type III and Type XII family of distributions in the contexts of univariate 𝐿-moments and the 𝐿- correlations. Included is the development of a procedure for specifying nonnormal distributions with controlled degrees of 𝐿-skew, 𝐿-kurtosis, and 𝐿-correlations. The procedure can be applied in a variety of settings such as statistical modeling (e.g., forestry, fracture roughness, life testing, operational risk, etc.) and Monte Carlo or simulation studies. Numerical examples are provided to demonstrate that 𝐿-moment-based Burr distributions are superior to their conventional moment-based analogs in terms of estimation and distribution fitting. Evaluation of the proposed procedure …
Exploring Linkages Between Consumer Food Co-Operatives And Domestic Fair Trade In The United States, Leslie Duram
Exploring Linkages Between Consumer Food Co-Operatives And Domestic Fair Trade In The United States, Leslie Duram
Publications
Consumer Food Co-operatives (co-ops) have provided consumers an alternative to corporate supermarkets and big-box stores since the 1960s. Producers seeking broader marketing opportunities often turn to co-ops. This study examines how, within Alternative Food Networks (AFNs), co-ops play a role in the emergence of the Domestic Fair Trade movement in the US. The Domestic Fair Trade (DFT) movement is based on the idea that family farms and small- to mid-sized farms in the global north are facing many of the same pressures as producers in the global south. The Domestic Fair Trade Association (DFTA) in the United States is the …