17 research outputs found

    Length Research Paper The effects of the pine processionary moth on the increment of crimean pine trees in Bartin, Turkey

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    The pine processionary moth (PPM), causing significant damage on pine stands in Turkey, affects mainly crimean pine stands within the Ulus vicinity. To determine the damage, 20 sample plots of second site class crimean pine stands were measured; 10 of which were taken as the control sample and 10 of which were damaged by PPM. In all, 289 trees in the damaged areas and 316 trees in the control areas were measured. Consequently, it was ascertained that there was a loss of 22% in diameterincrement, 29% at basal area increment, 43% in height, 24.5% at height increment, and 37.5% in volume increment of damaged trees based on their age (70 years) in comparison with the control trees

    Low cost, ultra-high throuhput particle counting using inertial microfluidics

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    In this work, an ultra-high throughput microfluidic particle counting system is demonstrated. For the particle counting, a low cost custom-design optical hardware is developed. The microfluidic chip utilizes the inertial microfluidics to focus the particles in a certain location which significantly enhanced the optical signal utilized for the quantification of the number concentration. The effect of the particle focusing on the counting performance is demonstrated. The proposed system has a potential to be portable and has a capability to process 10 ml of sample within couple minutes

    Presentation and management of keloid scarring following median sternotomy: a case study

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    <p>Abstract</p> <p>Introduction</p> <p>Keloid scars following median sternotomy are rare and occur more frequently in pigmented skin. Different management strategies have been described with variable success. We present a case of keloid scar formation following cardiac surgery including our management and the final aesthetic result.</p> <p>Case description</p> <p>A 64 year old female of fair complexion underwent mitral valve replacement. The procedure and postoperative recovery were uncomplicated, however, during the following year, thick keloid scars formed over the incision sites. Initial non surgical measures failed to relieve pain and did not offer any tangible aesthetic benefit. Eventually surgical excision was attempted. She presented to our clinic for nine months follow up with significant improvement in pain and aesthetic result.</p> <p>Discussion and Evaluation</p> <p>Several theories have attempted to explore the pathophysiology of keloid scar formation. A number of predisposing factors have been documented however none existed in this case. A variety of invasive and non invasive approaches have been described but significant differences in success rates and methodology of investigations still precludes a standardized management protocol.</p> <p>Conclusions</p> <p>In this case study a rare presentation of keloid scar has been presented. The variety of methods used to improve pain and aesthetic result demonstrates the propensity of keloid scars to recur and the therapeutic challenges that surgeons have to face in their quest for a satisfactory patient outcome.</p

    Predicting the above-ground biomass of calabrian pine (Pinus brutia Ten.) stands in Turkey

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    Biomass equations are presented for calabrian pine stands within the Adana-Karaisalý Regional Forestry Management Area. Thirty three sample plots, each of 0.04 ha, were chosen in order to define the biomass equations of calabrian pine, the most common needle leave species in Turkey. A tree which is the most similar to mean tree according to basal area was cut in each sample area as a sample tree. Various models were tested, utilizing the diameter (d) and the height (h) as independent variables and the most suitable models were determined. Using these models, above-ground biomass amounts can easily be acquired for single trees and stands

    Explanation of the X(4260) and X(4360) as Molecular States

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    We study the X(4260) and X(4360) solving Faddeev Equation under the Fixed Center Approximation. We find a state of I = 1 with mass around 4320 MeV and a width bout 25 MeV for the case of ρ meson scattering from X(3700) (DD̄) and 4256 MeV and a width about 30 MeV of D̄ scattering from D1(2420)(ρD). The results obtained in present work are in good agreement with experimental results

    Estimation of above-ground biomass and sequestered carbon of Taurus Cedar (Cedrus libani L.) in Antalya, Turkey

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    Based on data obtained from 36 sample trees, above-ground biomass development of Taurus Cedar was modeled according to tree components on a singletree basis. Carbon concentrations of tree components were established with the help of samples taken from sample trees. The biomass and sequestered carbon were modeled from the standing stem volume of single trees. It was determined that a coefficient of 0.51 could be used for Taurus Cedar species as a conversion factor from fresh weight to dry weight. Carbon concentrations were found to be lowest in branch barks, with a ratio of 49.5%, and highest in needles, with a ratio of 52.8%. According to the results of a comparison between volume, biomass and stored carbon amounts, 70.27 tons of biomass and 35.56 tons of carbon are stored in each standing stem volume of 100 m3. © iForest - Biogeosciences and Forestry

    Explanation of the X(4260) and X(4360) as Molecular States

    No full text
    We study the X(4260) and X(4360) solving Faddeev Equation under the Fixed Center Approximation. We find a state of I = 1 with mass around 4320 MeV and a width bout 25 MeV for the case of ρ meson scattering from X(3700) (DD̄) and 4256 MeV and a width about 30 MeV of D̄ scattering from D1(2420)(ρD). The results obtained in present work are in good agreement with experimental results
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