• Title/Summary/Keyword: Late effect

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Effect of Cutting Stage on Yield and Quality of triticale ( x triticosecale Witt ) Cultivars

  • Celen, A.Esen;Celik, Nuran
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.17 no.1
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    • pp.89-92
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    • 1997
  • The aim of the research was to investigate the herbage yield and some characteristics of three triticale cultivars (Beaguelita, Eronga and Juanillo) harvested at the boot and milky-waxy ripeness stages in 1993-94 and 1994-95. A randomized complete block design with three replications was used. Although there were no significant differences between the years and the cultivars, significant differences were found between the harvest stages and for most of the parameters studied superiority was observed for the late cutting (at milky-waxy ripeness). The highest crude protein (11.9%) and crude ash (9.4%) contents were obtained h m the boot stage, whereas the highest yields for green matter, dry matter, crude protein and crude ash were obtained h m the milky-waxy ripeness stage (34.94; 11.65; O.% and 0.92t/ha, respectively). Also, the dry matter content was higher at the late cutting (33.4%).

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Cerebral Postischemic Hyperperfusion in PET and SPECT (PET과 SPECT에서 나타나는 뇌허혈후 과관류)

  • Cho, Ihn-Ho
    • The Korean Journal of Nuclear Medicine
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    • v.35 no.6
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    • pp.343-351
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    • 2001
  • Cerebral post-ischemic hyperperfusion has been observed at the acute and subacute periods of ischemic stroke. In the animal stroke model, early post-ischemic hyperperfusion is the mark of recanalization of the occluded artery with reperfusion. In the PET studios of both humans and experimental animals, early post-ischemic hyperperfusion is not a key factor in the development of tissue infarction and indicates the spontaneous reperfusion of the ischemic brain tissue without late infarction or with small infarction. But late post-ischemic hyperperfusion shows the worse prognosis with reperfusion injury associated with brain tissue necrosis. Early post-ischemic hyperperfusion defined by PET and SPECT may be useful in predicting the prognosis of ischemic stroke and the effect of thrombolytic therapy.

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Performance Analysis of Variable Valve for Diesel Engine with Cam-in-Cam System (디젤엔진용 Cam-in-Cam시스템 적용 가변밸브 성능해석)

  • Jeong, S.C.;Park, J.M.;Kim, T.K.;Lee, J.W.
    • Journal of ILASS-Korea
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    • v.22 no.1
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    • pp.22-28
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    • 2017
  • In this study, the effects of intake valve closing timing by using Cam-in-Cam system on combustion and emission characteristics for diesel engine were investigated under GT-POWER simulation environment. As a result, it was found that volumetric efficiency and effective compression ratio were decreased as the intake valve closing(IVC) timing is retarded due to its backflow effect. Also, we found that in-cylinder pressure, heat release rate and NOx emission were decreased as IVC timing was retarded. These show that the LIVC(late intake valve closing) can be effective to control AFR and mixing rate in diffusion combustion of diesel engine.

Late side effects of radiation treatment for head and neck cancer

  • Brook, Itzhak
    • Radiation Oncology Journal
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    • v.38 no.2
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    • pp.84-92
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    • 2020
  • Patients undergoing radiation therapy for head and neck cancer (HNC) experience significant early and long-term side effects. The likelihood and severity of complications depends on a number of factors, including the total dose of radiation delivered, over what time it was delivered and what parts of the head and neck received radiation. Late side effects include: permanent loss of saliva; osteoradionecrosis; radiation recall myositis, pharyngoesophageal stenosis; dental caries; oral cavity necrosis; fibrosis; impaired wound healing; skin changes and skin cancer; lymphedema; hypothyroidism, hyperparathyroidism, lightheadedness, dizziness and headaches; secondary cancer; and eye, ear, neurological and neck structures damage. Patients who undergo radiotherapy for nasopharyngeal carcinoma tend to suffer from chronic sinusitis. These side effects present difficult challenges to the patients and their caregivers and require life-long strategies to alleviate their deleterious effect on basic life functions and on the quality of life. This review presents these side effects and their management.

Recent Progress in Alpha-emitting Radiopharmaceutical Development for Clinical Application

  • Choong Mo Kang;Yearn Seong Choe
    • Journal of Radiopharmaceuticals and Molecular Probes
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    • v.8 no.2
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    • pp.157-166
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    • 2022
  • Targeted alpha therapy began to be applied to the treatment of late-stage cancer patients because of its dramatic therapeutic efficacy in patients who have no responses with beta-emitting radiopharmaceuticals. However, its strong cytotoxicity may cause side effects due to undesirable uptake in non-target tissues. In order to use alpha-emitting radiopharmaceuticals for early-stage patients as well as late-stage cancer patients, therefore, modifications on their chemical structures are required. In this review, the recent progress in the development of alpha-emitting radiopharmaceuticals is discussed.

Swimming During Pregnancy Increases the Expression c-Fos and c-Jun in the Hippocampus of Rat Offspring

  • Sim, Young-Je;Kim, Jee-Youn;Kim, Chang-Ju
    • Korean Journal of Exercise Nutrition
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    • v.13 no.1
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    • pp.23-28
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    • 2009
  • The expression of c-Fos and c-Jun represents neuronal activity and plays a crucial role in the shaping of the development of brain. During the late pregnancy, exercise is known to influence neuronal activity of offspring. In the present study, the effect of swimming during pregnancy on the expression of c-Fos and c-Jun in the CA1, CA2, CA3 regions, and the dentate gyrus of the hippocampus of rat offspring was investigated using immunohistochemistry. Pregnant rats in the swimming group were forced to swim for 10 min once a day from 15 days after pregnancy until delivery. The expression of c-Fos and c-Jun in the CA1, CA2, CA3 regions, and the dentate gyrus of the hippocampus of pups was significantly increased by maternal swimming during late pregnant period. The present results show that prenatal swimming may enhance the neuronal activity of pups and affect the neonatal brain development.

A Study on Perception and Reaction of Ground Effect during Landing of Large Airplanes (대형기 착륙과정의 지면효과에 대한 인식과 대응에 관한 연구)

  • Moon, Bong-Sup;Choi, Youn-Chul
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.26 no.1
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    • pp.1-9
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    • 2018
  • Ground effect includes a reduction of induced drag, increase of lift, and nose-down moment during landing. These phenomena, occurring late in the landing maneuver, are considered to be of little significance because they tend to counteract and/or compensate in this respect. Even though it is unlikely to affect any flare profile variations appreciably, some pilots have reversed perception about such phenomenon and overestimate during landing. It is becoming a negative factor and is making an adverse effect on landing maneuver. This study examines the perception of ground effect of large aircraft pilots, reviews literature regarding ground effect, and makes suggestions that pilots can correctly recognize and respond to the effect during landing flare maneuvers.

Effect of Leaf and Stem Blight on Growth and Root Yield of Paeonia lactiflora Pallas (작약 지상부 고사가 뿌리의 생육과 수량에 미치는 영향)

  • Park, So-Deuk;Kim, Se-Jong;Kim, Jae-Chul;Kim, Ki-Jae;Shin, Jong-Hee;Choi, Boo-Sull
    • Korean Journal of Medicinal Crop Science
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    • v.5 no.3
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    • pp.206-210
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    • 1997
  • The pathogenic fungi associated with blight of leaf and stem in peony were leaf spot (Alternaria sp.), powdery mildew (Erysiphe aquilegiae) and rust (Cronartium flaccidum). The infection of leaf spot and powdery mildew begins from late April to midMay and rust was infected in early June. Blight time of aerial part in peony started from late May and the ratio of blight on leaf and stem was more than 50% in late Aug. Yields of root by the incidence time of blight of leaf and stem were 69.1% in late June, 65.4% in late July and $87.6{\sim}92.7$% in August and September. The number of root of more than 10mm in root diameter blighted in late June and July was much lower than in August, but the paeoniflorin content in the former was much higher than the latter.

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Effect of Short-term Water Restriction on Body Weight, Egg Production, and Immune Response of Local and Commercial Layers in the Late Phase of Production

  • Ahmed, A.S.;Alamer, M.A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.6
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    • pp.825-833
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    • 2011
  • Forty-five Hisex commercial layers and forty-five local Saudi breed layers were used to determine the acceptable limit of short-term water restriction in the late phase of production, when the problem of high feed and water consumption is expected. The experiment was performed under hot and arid environmental conditions when the layers were at fifty weeks of age. Layers from each breed were randomly assigned in groups of five into nine floor pens. The average environmental temperature was 37.2-$38.6^{\circ}C$, and the relative humidity was between 20 to 37%. The trial was divided into 3 periods; control (1 week), water restriction (2 weeks) and rehydration (1 week). During the restriction period, layers from each breed were divided into three groups that received 20, 40, and 0% restriction of drinking water relative to their consumed water during the control period. During the study, feed and water consumption, body weight, changes in body weight, egg production, primary antibody response to SRBC, and rectal temperature were evaluated. Water restriction did not result in any clear effect on feed intake in either breed, however, commercial layers tended to consume less feed compared to the local breed. Body weight declined with water restriction during the first week of restriction in the commercial breed regardless of rate of restriction, but it was delayed until the second week in the local breed. Water restriction of 40% decreased egg production in both breeds but with a delay of 1 week in the local breed. Antibody level to SRBC was not affected by water restriction in the commercial line while it was highly affected in the local breed. A water restriction of 20% is considered to be an acceptable limit under the current experimental conditions without a negative effect on egg production in both breeds and considering the immune status of the local breed. Whereas, 40% restriction had a negative effect on egg production, and varied effects in the other traits in both breeds.

Quantitative Morphology of High-Redshift Galaxies Using GALEX Ultraviolet Images of Nearby Galaxies

  • Yeom, Bum-Suk;Rey, Soo-Chang;Kim, Youngkwang;Lee, Youngdae;Chung, Jiwon;Kim, Suk;Lee, Woong
    • Journal of Astronomy and Space Sciences
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    • v.34 no.3
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    • pp.183-197
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    • 2017
  • We present simulations of the optical-band images of high-redshift galaxies utilizing 845 near-ultraviolet (NUV) images of nearby galaxies obtained through the Galaxy Evolution Explorer (GALEX). We compute the concentration (C), asymmetry (A), Gini (G), and $M_{20}$ parameters of the GALEX NUV/Sloan Digital Sky Survey r-band images at z ~ 0 and their artificially redshifted optical images at z = 0.9 and 1.6 in order to quantify the morphology of galaxies at local and high redshifts. The morphological properties of nearby galaxies in the NUV are presented using a combination of morphological parameters, in which early-type galaxies are well separated from late-type galaxies in the $G-M_{20}$, $C-M_{20}$, A-C, and $A-M_{20}$ planes. Based on the distribution of galaxies in the A-C and $G-M_{20}$ planes, we examine the morphological K-correction (i.e., cosmological distance effect and bandshift effect). The cosmological distance effect on the quantitative morphological parameters is found to be significant for early-type galaxies, while late-type galaxies are more greatly affected by the bandshift effect. Knowledge of the morphological K-correction will set the foundation for forthcoming studies on understanding the quantitative assessment of galaxy evolution.