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Articles 43201 - 43230 of 304369
Full-Text Articles in Physical Sciences and Mathematics
Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites – Final Field Sampling Plan (Fsp) #2; Unreclaimed Sites Ur-24, Ur-26, And Ur-40., Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites - Final Field Sampling Plan (Fsp) #3: Ur-06, Ur-07, Ur-20, Ur-22, Ur-35, And Ur-36., Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites -Draft Final Field Sampling Plan (Fsp) #4: Ur-16 And Ur-21, Mike Mcanulty
Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites -Draft Final Field Sampling Plan (Fsp) #4: Ur-16 And Ur-21, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites - Draft Final Field Sampling Plan (Fsp) #5: Ur-12, Ur-13, Ur-33, And Ur-38., Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites - Draft Final Field Sampling Plan (Fsp) #5: Ur-12, Ur-13, Ur-33, And Ur-38., Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Selection Of High Yielding And Anthracnose Resistant Stylosanthes For Brazil, India And China, N. White, S. Chakraborty, Celso D. Fernandes, M. J. Charchar, N. P. Melkania, C. R. Ramesh, B. Gangaiah, Guodao Liu, D. F. Cameron, J. W. Miles
Selection Of High Yielding And Anthracnose Resistant Stylosanthes For Brazil, India And China, N. White, S. Chakraborty, Celso D. Fernandes, M. J. Charchar, N. P. Melkania, C. R. Ramesh, B. Gangaiah, Guodao Liu, D. F. Cameron, J. W. Miles
IGC Proceedings (1993-2023)
Resistance to anthracnose, dry matter yield (DMY) and seed yield (SY) was assessed for germplasm and breeding lines of Stylosanthes in Brazil, India and China. Overall, Stylosanthes guianensis produced higher DMY than S. scabra, S. capitata and S. macrocephala at most sites in Brazil. Data from China suggest that there are high yielding anthracnose resistant S. guianensis lines that can reduce the reliance on CIAT 184. S. seabrana might also prove successful. S. seabrana in India produced the highest DMY and SY and it can form nodules with native Bradyrhizobium strains. Regional differences in resistance within accessions stress the …
Bone Quality And Fractures In Women With Osteoporosis Treated With Bisphosphonates For 1 To 14 Years, Hartmut H. Malluche, Jin Chen, Florence Lima, Lucas J. Liu, Marie-Claude Monier-Faugere, David A. Pienkowski
Bone Quality And Fractures In Women With Osteoporosis Treated With Bisphosphonates For 1 To 14 Years, Hartmut H. Malluche, Jin Chen, Florence Lima, Lucas J. Liu, Marie-Claude Monier-Faugere, David A. Pienkowski
Internal Medicine Faculty Publications
Oral bisphosphonates are the primary medication for osteoporosis, but concerns exist regarding potential bone-quality changes or low-energy fractures. This cross-sectional study used artificial intelligence methods to analyze relationships among bisphosphonate treatment duration, a wide variety of bone-quality parameters, and low-energy fractures. Fourier transform infrared spectroscopy and histomorphometry quantified bone-quality parameters in 67 osteoporotic women treated with oral bisphosphonates for 1 to 14 years. Artificial intelligence methods established two models relating bisphosphonate treatment duration to bone-quality changes and to low-energy clinical fractures. The model relating bisphosphonate treatment duration to bone quality demonstrated optimal performance when treatment durations of 1 to 8 …
Mgrre_Pureoilscouttickets_Iroquois Trust Co_1_21127006480000, Mgrre
Mgrre_Pureoilscouttickets_Iroquois Trust Co_1_21127006480000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Underground Burning Of Jharia Coal Mine (India) And Associated Surface Deformation Using Insar Data, Jungrack Kim, Shih-Yuan Lin, Ramesh P. Singh, Chen-Wei Lan, Hye-Won Yun
Underground Burning Of Jharia Coal Mine (India) And Associated Surface Deformation Using Insar Data, Jungrack Kim, Shih-Yuan Lin, Ramesh P. Singh, Chen-Wei Lan, Hye-Won Yun
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
The underground burning in the Jharia coal mine (JCM) in India is a highly devastating environmental hazard inducing various adverse consequences. In the present study, we carried out time series analyses based on Interferometric Synthetic Aperture Radar (InSAR) and land surface temperature (LST) to study the environmental risk. First, a permanent scatterer (PS) time series analysis using Sentinel-1 images over three years was performed to detect the spatio-temporal distribution of ground deformation. Comparison of ground thermal anomaly clearly delineated the subsidence spots associated with the oxygen supply to combustion areas. On the contrary, few deformations were mapped showing pronounced uplift …
Genetic Diversity In The Anthracnose Pathogen Infecting Stylosanthes In Brazil, India And China, P. Weeds, S. Chakraborty, Celso D. Fernandes, M. J. Charchar, C. R. Ramesh, Guodao Liu, S. Kelemu
Genetic Diversity In The Anthracnose Pathogen Infecting Stylosanthes In Brazil, India And China, P. Weeds, S. Chakraborty, Celso D. Fernandes, M. J. Charchar, C. R. Ramesh, Guodao Liu, S. Kelemu
IGC Proceedings (1993-2023)
This work aimed to determine the genetic diversity of Colletotrichum gloeosporioides infecting Stylosanthes spp. in Brazil, China and India. A total of 132 isolate originating from S. seabrana, S. macrocephala, S. capitata, S. scabra, and S. guianensis were used. Four major genetic groups were identified from an analysis of genetic diversity using selection-neutral DNA markers. Group 1 contained 20 isolates and this may represent a genotype that migrated from the center of diversity in Brazil and Colombia to Australia, Thailand and India. Group 2 consisted of 66 Brazilian isolates and group 3 had 19 isolates from …
Relationship Between Tree Density And Grass Dry Matter Yield In A Southern African Savanna, G. N. Smit
Relationship Between Tree Density And Grass Dry Matter Yield In A Southern African Savanna, G. N. Smit
IGC Proceedings (1993-2023)
The investigation was carried out on a densely wooded area in the Mopani savanna of South Africa. Seven plots were subjected to different intensities of tree thinning, ranging from a totally cleared plot (0 %) to plots thinned to the equivalent of 10 %, 20 %, 35 %, 50 % and 75 % of the leaf biomass of a control plot (100 %). The grasses responded positively to the tree thinning in terms of total dry matter yield. The yields between tree canopies were generally of the same order or higher than under tree canopies, with the yields where trees …
Seasonal Patterns Of Growth And Senescence In Cynodon Spp. Cv Tifton 85 Grazed Swards, L. F. M. Pinto, L. G. Barioni, S. C. Da Silva
Seasonal Patterns Of Growth And Senescence In Cynodon Spp. Cv Tifton 85 Grazed Swards, L. F. M. Pinto, L. G. Barioni, S. C. Da Silva
IGC Proceedings (1993-2023)
Growth and senescence are very important determinants of grassland productivity and correspond to key features to be considered for grazing management purposes. The present study was carried out at ESALQ, Piracicaba, S.P., Brazil and evaluated growth and senescence as a function of sward surface height. Mathematical models generated revealed that a similar pattern of response occurred as described in the literature for temperate grass species. However, a seasonal variation in response curves for growth and senescence was also observed and could be related to climatic events. Highest herbage accumulation rates were observed within the range of 15 to 20 cm …
Yields And Sward Characteristics Of Timothy Cultivars Under Grazing, H. T. Kunelius, G. H. Dürr, K. B. Mcrae, S. A. E. Fillmore
Yields And Sward Characteristics Of Timothy Cultivars Under Grazing, H. T. Kunelius, G. H. Dürr, K. B. Mcrae, S. A. E. Fillmore
IGC Proceedings (1993-2023)
Seven timothy (Phleum pratense L.) cultivars were evaluated over three pasture seasons under rotational grazing to 7 or 11 cm post-grazing heights and regrowth periods of four to seven weeks. There was a trend for the pasture type timothy cultivars to outyield Champ timothy (check). Dry matter yields were lower for the 7 cm than 11 cm post-grazing height. Although the overall cultivar x post-grazing height interaction was not significant (P > 0.05), there was variability in grazing tolerance among timothy cultivars. Yield of Kahu was maintained and vegetative tiller density of Kahu increased over the experimental period under 7 …
A Technique For Assessing Seed Survival Of New Pasture Legumes Following Grazing By Sheep, Caroline T. De Koning, P. E. Beale, A. J. Duncan, S. Hughes, K. Haskard
A Technique For Assessing Seed Survival Of New Pasture Legumes Following Grazing By Sheep, Caroline T. De Koning, P. E. Beale, A. J. Duncan, S. Hughes, K. Haskard
IGC Proceedings (1993-2023)
A technique for assessing the fate of seed grazed by sheep in small field plots was examined using the pasture species Trifolium michelianum cv. Paradana, Medicago truncatula cv. Mogul, Trifolium spumosum and Trigonella balansae. Trifolium spumosum lost the greatest proportion of seed from dry pasture residues (88% seed eaten), whereas Trigonella balansae, Paradana and Mogul lost 61%, 55% and 53% respectively. However, Trifolium spumosum and Paradana had high levels of seed in the faeces (56.8 kg/ha and 65.2 kg/ha respectively), whereas Mogul and Trigonella balansae had low levels (10.3 kg/ha and 11.0 kg/ha respectively). Mogul, due to it's …
Mgrre_Pureoilscouttickets_Vanderwaal_1_21127006310000, Mgrre
Mgrre_Pureoilscouttickets_Vanderwaal_1_21127006310000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Strong Inclination Pacing Of Climate In Late Triassic Low Latitudes Revealed By The Earth-Saturn Tilt Cycle, Miranda Margulis-Ohnuma, Jessica Whiteside, Paul Olsen
Strong Inclination Pacing Of Climate In Late Triassic Low Latitudes Revealed By The Earth-Saturn Tilt Cycle, Miranda Margulis-Ohnuma, Jessica Whiteside, Paul Olsen
The Yale Undergraduate Research Journal
Gravitational interactions among masses in the solar system are recorded in Earth’s paleoclimate history because variations in the geometry of Earth’s orbit and axial orientation modulate insolation. However, astronomical models are unreliable before ~50 Ma due to the chaotic nature of the solar system and therefore must be constrained using geological observations. Here, we use environmental proxies from paleo-tropical Late Triassic lake deposits of the Newark Rift Basin to identify and tune to previously undescribed strong variations in orbital inclination. Tuning to the 173 kyr Earth-Saturn inclination cycle, theoretically stable due to the high mass of Saturn, reveals both other …
Analysis Of The Electronic Effects And Reactivity Of Benzhydrols In The Formation Of Benzhydryl Ethers, Katherine Quesada, Daniel Chabeda, Jaeger Johnson, Alex Shore
Analysis Of The Electronic Effects And Reactivity Of Benzhydrols In The Formation Of Benzhydryl Ethers, Katherine Quesada, Daniel Chabeda, Jaeger Johnson, Alex Shore
The Yale Undergraduate Research Journal
Benzhydryl ethers were synthesized through the use of microwave irradiation in a proto-ionic liquid solvent. The resulting products were separated from the reaction mixture by vacuum filtration with a silica gel plug. The products were analyzed using GCMS and 1 H NMR techniques to identify and quantify products. Analysis of the resultant data indicated the syntheses of the desired benzhydryl products were successful for 4,4-dimethoxybenzhydrol (conversion: 83% (1-propyl ether), 11% (2-propyl ether), 11% (menthyl ether)) and 4,4-dimethylbenzhydrol (conversion to desired product: 100% (1-propyl ether), 100% (2-propyl ether), 26% (menthyl ether)). However, the syntheses were unsuccessful for reactant 4,4-difluorobenzhydrol and benzhydrol. …
A Dispersive Force Model Of Caribbean Island Biogeography, Anthony Sarkiss
A Dispersive Force Model Of Caribbean Island Biogeography, Anthony Sarkiss
The Yale Undergraduate Research Journal
Framework-based models serve as an important tool to describe, predict and manage ecological systems. In this paper I construct one such model, a dispersive force model based on MacArthur and Wilson’s (1963) theory of island biogeography, in order to assess island species richness with varying climatic patterns. Specifically, I use island–mainland distance (d), insular area (A), a climatic dispersal parameter (f), and a climatic disturbance parameter (h) to calculate the insular species richness ratio at equilibrium. To test this model through hurricane impact on marine islands, it was executed with data from islands of the Dutch Caribbean. Future climatic conditions …
Seasonal Growth Curves Of Perennial Ryegrass In Mexico, M. E. Z. Velasco, Alfonso Hernández-Garay, J. P. Pérez, V. A. González-Hernández
Seasonal Growth Curves Of Perennial Ryegrass In Mexico, M. E. Z. Velasco, Alfonso Hernández-Garay, J. P. Pérez, V. A. González-Hernández
IGC Proceedings (1993-2023)
An experiment was established at Colegio de Postgraduados Research Station, Texcoco, México to evaluate the seasonal pattern of growth curve of perennial ryegrass (Lolium perenne) swards. Growth rate increases rapidly from a low level immediately after defoliation, and eventually reaches an equilibrium level as the amount of green leaf in the sward stabilize. The time required to reach this state varied according to the season of year, with the four seasons ranked in the order: spring (4 weeks) < summer (5 weeks) < autumn and winter (6 weeks). Once swards reached equilibrium, growth rates started to decline as a consequence of an increase in dead material and pseudostem. These increases were highest in spring and lowest in winter. The results of this study suggest that sward management to maximise herbage production and utilisation in ryegrass swards must be done once the highest green leaf mass is reached. In this trial, it was reached at 5, 6, 6 and 4 weeks in summer, autumn, winter and spring, respectively.
The Effects Of Planting Density On The Dry Matter Yield And The Overwintering Ability Of The Dwarf And Normal Napiergrasses In Two Years After Planting, Yasuyuki Ishii, M. M. Mukhtar, Sayan Tudsri
The Effects Of Planting Density On The Dry Matter Yield And The Overwintering Ability Of The Dwarf And Normal Napiergrasses In Two Years After Planting, Yasuyuki Ishii, M. M. Mukhtar, Sayan Tudsri
IGC Proceedings (1993-2023)
The objective of this study is to determine the optimum planting density in napiergrass (Pennisetum purpureum Schumach) among two dwarf varieties introduced from Thailand and two normal ones under three levels of density. Dwarf varieties showed lower plant height and mean tiller weight, and higher leaf area index (LAI) and leaf blade percentage. Crop growth rate was positively correlated with LAI, and net assimilation rate and canopy extinction coefficient (K) were negatively correlated with LAI in the second year, including all dwarf and normal varieties, while K tended to be lower in the dwarf varieties. With the increase in …
Light Interception And Dry Matter Yield In Grass/Legume Mixtures, H. A. Jönsson
Light Interception And Dry Matter Yield In Grass/Legume Mixtures, H. A. Jönsson
IGC Proceedings (1993-2023)
The influence of grass variety on light interception and dry matter yield in a grass/clover mixture was studied. Two varieties of timothy (Phleum pratense L.) and five varieties of ryegrass (Lolium spp) as components in a mixture were compared during the spring period up to the first cut of the third harvest year. By replacing the timothy variety in the mixture both light interception and dry matter yield were significantly affected. The leaf orientation was thought to be a contributing factor with erect leaves intercepting less light. There were no significant differences neither in light interception nor …
Photosynthetic Light Response Of Tanzania Grass Under Four Levels Of Leaf Temperature, A. C. L. De Mello, P. M. Santos, Carlos G. S. Pedreira, M. Corsi, C. T. Dos S. Dias
Photosynthetic Light Response Of Tanzania Grass Under Four Levels Of Leaf Temperature, A. C. L. De Mello, P. M. Santos, Carlos G. S. Pedreira, M. Corsi, C. T. Dos S. Dias
IGC Proceedings (1993-2023)
The purpose of this paper is to establish photosynthetic light response curves for Tanzania grass (Panicum maximum Jacq.) under four leaf temperature levels. Photosynthetic rate was measured as a response to levels of photosynthetic photon flux density (PPFD) on the youngest fully expanded leaves of 12 representative tillers with an infra red gas analyzer. The effect of PPFD was tested for each leaf temperature level in a randomized complete block design. Photosynthetic light response curves were adjusted for each leaf temperature using a non-linear hyperbolic model. The maximum photosynthetic response was 25,59; 31,43; 34,57 and 27,53 µmol CO2 …
Nonstructural Carbohydrate Reserves Of Temperate Perennial Grasses In Autumn Early Growth, Y. Tamura, K. Matoba, A. Fushimi, M. Moriyama
Nonstructural Carbohydrate Reserves Of Temperate Perennial Grasses In Autumn Early Growth, Y. Tamura, K. Matoba, A. Fushimi, M. Moriyama
IGC Proceedings (1993-2023)
The objective of this study was to determine levels of nonstructural carbohydrate reserves of four temperate perennial grasses: Orchardgrass (Dactylis glomerata L.), Timothy (Phleum pratense L.), Perennial ryegrass (Lolium perenne L.), and Reed canarygrass (Phalaris arundinacea L.) in their early growth stages during the cool autumn temperatures in northern Japan. At the time of sampling, all grasses were in their vegetative stage, and Reed canarygrass was not forming rhizomes. Fructosan concentration in reed canarygrass roots (8.04%) was 22 times that of the leaf blade (0.36%) and twice that of the stem (3.40%); the concentration in reed …
Understanding The Effects Of Wind Intensity, Forward Speed, Pressure And Track On Generation And Propagation Of Hurricane Irma Surges Around Florida, Abram Musinguzi, Madinah Shamsu, Muhammad K. Akbar, Jason G. Fleming
Understanding The Effects Of Wind Intensity, Forward Speed, Pressure And Track On Generation And Propagation Of Hurricane Irma Surges Around Florida, Abram Musinguzi, Madinah Shamsu, Muhammad K. Akbar, Jason G. Fleming
Mechanical and Manufacturing Engineering Faculty Research
In this study, it is demonstrated that hurricane wind intensity, forward speed, pressure, and track play an important role on the generation and propagation of coastal storm surges. Hurricane Irma, which heavily impacted the entire Florida peninsula in 2017, is used to study the storm surge sensitivity to varying storm characteristics. Results show that the west coast experiences a negative surge due to offshore wind of the approaching storm, but the positive surge returns after the hurricane eye passes over a location and wind became onshore. In the west coast peak, surges are intensified by an increase in onshore wind …
Mgrre_Pureoilscouttickets_Cushing, W. F._1_Na, Mgrre
Mgrre_Pureoilscouttickets_Cushing, W. F._1_Na, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Mapping The Gravitational-Wave Sky With Lisa: A Bayesian Spherical Harmonic Approach, Sharan Banagiri, Alexander Criswell, Tommy Kuan, Vuk Mandic, Joseph D. Romano, Stephen R. Taylor
Mapping The Gravitational-Wave Sky With Lisa: A Bayesian Spherical Harmonic Approach, Sharan Banagiri, Alexander Criswell, Tommy Kuan, Vuk Mandic, Joseph D. Romano, Stephen R. Taylor
Physics and Astronomy Faculty Publications and Presentations
The millihertz gravitational-wave frequency band is expected to contain a rich symphony of signals with sources ranging from Galactic white dwarf binaries to extreme mass ratio inspirals. Many of these gravitational-wave signals will not be individually resolvable. Instead, they will incoherently add to produce stochastic gravitational-wave confusion noise whose frequency content will be governed by the dynamics of the sources. The angular structure of the power of the confusion noise will be modulated by the distribution of the sources across the sky. Measurement of this structure can yield important information about the distribution of sources on Galactic and extragalactic scales, …
A Computational Study Of Genotype-Phenotype Mutation Patterns, Kamaludin Dingle, Omar Tawfik, Ahmed Aldabagh
A Computational Study Of Genotype-Phenotype Mutation Patterns, Kamaludin Dingle, Omar Tawfik, Ahmed Aldabagh
Undergraduate Research Symposium
Understanding properties of genotype-phenotype maps is important for understanding biology and evolution. In this project we make a computational study of the statistical effects of genetic mutations, in particular computing the probabilities of each phenotype transitioning to any other phenotype. We also investigate the importance of the local phenotypic environment of a single genotype, and its role in determining mutation transition probabilities. We use HP protein folding, RNA structure, and a simplified GRN matrix model to study these questions.
Spectral Analysis Of A New Electronic Transition Of Platinum Fluoride, Ptf, Carol Welch
Spectral Analysis Of A New Electronic Transition Of Platinum Fluoride, Ptf, Carol Welch
Undergraduate Research Symposium
The electronic landscape of platinum containing molecules has been the focus of numerous spectroscopic studies in recent years, because of the difficulty in describing electronic structure theoretically due to electronic correlations and relativistic effects. A collective effort by spectroscopitsts and theoreticians to investigate the diatomic molecule platinum fluoride, PtF, has included research such as developing potential energy diagrams and performing analyses on rotational transitions with microwave spectroscopy. One group observed electronic transitions of PtF using laser vaporization/reaction with jet free expansion and laser induced spectroscopy. A highly effective method for observing and analyzing electronic transitions of small, metal-containing molecules like …
Effect Of Cutting Height On Tiller Population Density And Herbage Biomass Of Buffel Grass, L. S. Beltrán, P. J. Pérez, G. A. Hernández, M. E. García, S. J. Kohashi, H. J. G. Herrera
Effect Of Cutting Height On Tiller Population Density And Herbage Biomass Of Buffel Grass, L. S. Beltrán, P. J. Pérez, G. A. Hernández, M. E. García, S. J. Kohashi, H. J. G. Herrera
IGC Proceedings (1993-2023)
The aim of this trial was to investigate the effect of different cutting heights on tiller population density and herbage biomass of Buffel grass (Cenchrus ciliaris L) grown in miniature swards in a greenhouse. Four treatments with five replicates: five cm, ten cm, and 20 cm cutting height, and control (without cut) were randomly allocated. Intensity of defoliation affected the cumulative herbage harvested; the ten cm cutting height was greater (404.1 g DM m-2) than 5 cm (317.6 g DM m-2) and 20 cm (263.9 g DM m-2), respectively. Cumulative herbage harvested in …
Leaf Appearance Rate In Brachiaria Decumbens Grown In Nitrogen And Potassium Rates, M. D. C. Ferragine, F. A. Monteiro, S. C. Da Silva
Leaf Appearance Rate In Brachiaria Decumbens Grown In Nitrogen And Potassium Rates, M. D. C. Ferragine, F. A. Monteiro, S. C. Da Silva
IGC Proceedings (1993-2023)
A greenhouse experiment was carried out with Brachiaria decumbens Stapf. cv. Basilisk grown in nutrient solution. Five nitrogen rates (42; 140; 238; 336 and 434 mg/L) and three potassium rates (78; 234 and 390 mg/L) were studied in a factorial experiment, in a randomized complete block design, with four replications. Green leaf number was evaluated in six times in the first period of growth (27, 30, 33, 36, 39 and 42 days after transplanting) and nine times in the second period (45, 48, 51, 54, 57, 60, 63, 66 and 69 days after transplanting). Data was registered in three plants …