2,573 research outputs found
Circular 114
Trials were begun in 1989 at the Georgeson Botanical Garden (64°51âN, 147° 52âW, elevation 475
feet; 136 meters) to evaluate the hardiness and ornamental potential of trees, shrubs, and herbaceous
perennial ornamentals. Woody ornamentals are tested for 10 years, and herbaceous perennials for five
years. This report is the first summary of perennials that have survived the trial period with a winter
hardiness rating between zero and 2.5. Each plant in the trial is evaluated annually for winter injury and
rated on a scale of zero through four. A zero rating denotes no visible injury, and four is death. A score of
2.5 and lower indicates the plant grew well in the Garden. It may have shown symptoms of winter injury
but recovered in subsequent seasons. The species and cultivars listed in Table 1 are recommended for
further trial throughout Interior Alaska.
Plants are grown on a south-facing slope in Fairbanks silt loam soil. The plots have been cultivated
since about 1910. All plants receive full sun except those located in the shade house. Plants receive
supplemental irrigation, mostly hand weeding, and an annual application of 500 lb per acre (560.5 kg/ha)
10-20-20S fertilizer. Lilies receive 1500 lb (1,681.5 kg/ha) per acre of the same fertilizer. No plant
receives winter protection such as mulches, wind barriers or snow fences. Weather data are compiled
annually from U.S. Weather Service station (elevation 475 feet; 136 meters) located approximately 350 feet
(105 meters) west of the Garden. A summary of pertinent weather statistics is shown in Table 2
Circular 35
Revised April 1991 by Grant E.M. Matheke, Patricia J. Wagner, and Patricia S. Holloway;
Reprinted by Cooperative Extension Service, University of Alaska Fairbanks, and U.S.D.A. Cooperating. Publication 300C-00235A technique for growing high-yielding, everbearing strawberries with
clear polyethylene (plastic) mulch and row covers has been developed at
the Agricultural and Forestry Experiment Station at Fairbanks. This
technique eliminates the long delay from planting to fruiting that occurs
with other culture systems and it has created an interest in commercial
production and an increased home-garden effort in Alaska.
The production system involves planting nursery plants each season as
early as possible through clear polyethylene mulch, using row covers for
the early part o f the season. Using this technique, harvest begins about
July 15 and extends until freeze-up, com pared to a production season
from about July 10 to July 28 for hardy types o f strawberries such as
Toklat or Pioneer. This system produces clean fruit, easy to pick and
relatively free from fruit rot. The harvest season can be extended in the
fall by again using the row covers for frost protection
Circular 102
In 1989, a systematic evaluation of woody and herbaceous perennial landscape
plants was begun at the University of Alaska Fairbanks Georgeson Botanical Garden
(64°51âN, 147°52âW). These evaluations were expanded to include annual flowers in
1992 and ferns in 1993. The purpose of this research is to identify hardy perennials
capable of surviving in subarctic environments; to evaluate the ornamental potential of
perennials and annuals; and to fulfill a growing demand for information on landscape
plant materials by homeowners, commercial growers, and landscapers.Introduction -- Explanation of Plant Evaluation Tables -- Table 1. Weather records for the test years -- Table 2. All plant materials evaluated in 1994: Herbaceous perennials; Ferns; Ornamental grasses; Woody perennials -- Table 4. Plantings from 1994 that have not yet been evaluated for winter survival: Herbaceous perennials; Ferns; Woody perennials -- Table 5. Annual flowers evaluated in 1994 -- Appendix 1. Commercial Sources and Organizations -- Map of GB
Circular 109
Introduction -- Explanation of Plant Evaluation Tables -- Table 1. Weather records for the test years -- Table 2. All plant materials evaluated in 1996 -- Table 3. All plants that have been evaluated but did not survive the minimum number of test years -- Table 4. Plantings from 1996 that have not yet been evaluated for winter survival -- Table 5. Annual flowers evaluated in 1996 -- Appendix 1. Commercial Sources and Organizations -- Map of GB
Circular 98
In 1989, a systematic evaluation of woody and herbaceous perennial landscape
plants was begun at the University of Alaska Fairbanks Georgeson Botanical Garden
(64051âN, 147°52âW). These evaluations were expanded to include annual flowers in
1992 and ferns in 1993. The purpose of this research is to identify hardy perennials
capable of surviving in subarctic environments; to evaluate the ornamental potential of
perennials and annuals; and to fulfill a growing demand for information on landscape
plant materials by homeowners, commercial growers, and landscapers.Introduction -- Explanation of Plan Evaluation Tables -- Table 1. Weather records for the test years -- Table 2. All plant materials evaluated in 1992: Herbaceous perennials; Ornamental grasses; Woody perennials -- Table 3. All plants that have been evaluated but did not survive the minimum number of test years: Hebaceous perennials; Ornamental grasses; Woody perennials -- Table 4. Plantings from 1993 that have not yet been evaluated for winter survival: Herbaceous perennials; Ferns; Ornamental grasses; Woody perennials -- Table 5. Annual flowers evaluated in 1993 -- Appendix 1. Commercial Sources and Organizations -- Map of GB
Graphene Oxide Sheets-based Platform For Induced Pluripotent Stem Cells Culture: Toxicity, Adherence, Growth And Application
It was prepared the graphene oxide (GO) sheets by suspension of GO in ultrapure deionized water or in Pluronic F-68 using a ultrasonicator bath. Total characterization of GO sheets was carried out. The results on suspension of GO in water showed excellent growth and cell adhesion. GO/Pluronic F-68 platform for the growth and adhesion of adipose-derived stem cells (ASCs) that exhibits excellent properties for these processes. GO in water suspension exhibited an inhibition of the cell growth over 5 mu g/mL In vivo study with GO suspended in water (100 g/mL) on Fisher 344 rats via i.p. administration showed low toxicity. Despite GO particle accumulates in the intraperitoneal cavity, this fact did not interfere with the final absorption of GO. The AST (aspartate aminotransferase) and ALT (alanine aminotransferase) levels (liver function) did not differ statistically in all experimental groups. Also, creatinine and urea levels (renal function) did not differ statistically in all experimental groups. Taking together, the data suggest the great potential of graphene oxide sheets as platform to ACSs, as well as, new material for treatment several urological diseases.61
Graphene oxide sheets-based platform for induced pluripotent stem cells culture: toxicity, adherence, growth and application
It was prepared the graphene oxide (GO) sheets by suspension of GO in ultrapure deionized water or in Pluronic F-68 using a ultrasonicator bath. Total characterization of GO sheets was carried out. The results on suspension of GO in water showed excellent growth and cell adhesion. GO/Pluronic F-68 platform for the growth and adhesion of adipose-derived stem cells (ASCs) that exhibits excellent properties for these processes. GO in water suspension exhibited an inhibition of the cell growth over 5 mu g/mL In vivo study with GO suspended in water (100 g/mL) on Fisher 344 rats via i.p. administration showed low toxicity. Despite GO particle accumulates in the intraperitoneal cavity, this fact did not interfere with the final absorption of GO. The AST (aspartate aminotransferase) and ALT (alanine aminotransferase) levels (liver function) did not differ statistically in all experimental groups. Also, creatinine and urea levels (renal function) did not differ statistically in all experimental groups. Taking together, the data suggest the great potential of graphene oxide sheets as platform to ACSs, as well as, new material for treatment several urological diseases6174th International Conference on Safe Production and Use of Nanomaterials (Nanosafe
Gastrocnemius-Soleus Muscle Tendon Unit Changes Over the First 12 Weeks of Adjusted Age in Infants Born Preterm
Background and Purpose: Differences in the gastrocnemius-soleus muscle and tendon have been documented shortly after birth in infants born preterm compared with infants born at term. Knowledge of muscle tendon unit lengths at term age to 12 weeks of age in infants born preterm may be useful in understanding motor development. Participants and Method: Gastrocnemius-soleus muscle tendon unit lengths were compared at term age, at 6 weeks of age, and at 12 weeks of age (preterm adjusted age) in 20 infants born full term and 22 infants born preterm. Results: Significant differences were found between the 2 groups on taut tendon, relaxed muscle length (AO); taut tendon, stretched muscle length (AMax); and muscle stretch (AO to AMax). Infants born preterm demonstrated measures of AO and AMax in positions of greater plantar flexion compared with infants born full term. Significant differences in measurements of AO were found between term age and 12 weeks of age, indicating that the tendon lengthens during this period for both groups. Discussion and Conclusion: These results provide knowledge of musculoskeletal development of the gastrocnemius-soleus muscle and tendon. Differences in musculoskeletal measurements are consistent with uterine confinement in the last weeks of full-term gestation. These findings have implications when examining the musculoskeletal system in infants born preterm who are demonstrating functional changes
Impacts of Climate and Insect Herbivory on Productivity and Physiology of Trembling Aspen (Populus tremuloides) in Alaskan Boreal Forests
Climate change is impacting forested ecosystems worldwide, particularly in the Northern Hemisphere where warming has increased at a faster rate than the rest of the globe. As climate warms, trembling aspen (Populus tremuloides) is expected to become more successful in northern boreal forests because of its current presence in drier areas of North America. However, large-scale productivity decline of aspen has recently been documented throughout the United States and Canada as a result of drought and insect outbreaks. We used tree ring measurements (basal area increment (BAI) and stable carbon isotopes (δ 13C)) and remote sensing indices of vegetation productivity (NDVI) to study the impact of climate and damage by the aspen epidermal leaf miner (Phyllocnistis populiella) on aspen productivity and physiology in interior Alaska. We found that productivity decreased with greater leaf mining and was not sensitive to growing season (GS) moisture availability. Although productivity decreased during high leaf mining years, it recovered to pre-outbreak levels during years of low insect damage, suggesting a degree of resilience to P. populiella mining. Climate and leaf mining interacted to influence tree ring δ 13C, with greater leaf mining resulting in decreased δ 13C when GS moisture availability was low. We also found that NDVI was negatively associated with leaf mining, and positively correlated with BAI and the δ 13C decrease corresponding to mining. This suggests that NDVI is capturing not only variations in productivity, but also changes in physiology associated with P. populiella. Overall, these findings indicate that the indirect effects of P. populiella mining have a larger impact on aspen productivity and physiology than climate under current conditions, and is essential to consider when assessing growth, physiology and NDVI trends in interior Alaska
Continuous Lidocaine Infusions to Manage OpioidâRefractory Pain in a Series of Cancer Patients in a Pediatric Hospital
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/134501/1/pbc25870.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/134501/2/pbc25870_am.pd
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