• Food Science and Preservation
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• v.16 no.5
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• pp.644-649
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• 2009

We investigated quality changes in Setoka ([Citrus unshiu$\times$Citrus sinensis]$\times$Citrus reticulate]$\times$[Citrus reticulata$\times$Citrus sinensis]) wrapped in 30-m pore size low-density polyethylene film (LDPE) and stored at different temperatures. LDPE wrapping effectively inhibited weight loss, and fruits seemed fresh even after room temperature storage. The decay rate was higher at room temperature and with LDPE wrapping. The respiration rate of LDPE- wrapped fruits was somewhat higher than that of control samples. Thus, no modified atmosphere packaging (MAP) effect was observed when 'Setoka' citrus was studied. Acidity decreased at a constant but different rate with each storage method used, and these rates were correlated with respiration rates. Soluble solid content (SSC), however, increased during 45 days of storage a subsequent rapid decrease was then observed.

• Korean Journal of Agricultural and Forest Meteorology
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• v.18 no.3
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• pp.120-126
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• 2016

This study was carried out to examine the relationships between seasonal variations of soil $CO_2$ efflux rates and soil environmental factors in matured Pinus densiflora and Quercus variabilis stands in the Wola national experimental forests, southern Korea. Soil $CO_2$ efflux rates were measured monthly from March 2015 to February 2016. Mean soil $CO_2$ efflux rates during the study period were significantly higher in the Q. variabilis ($mean{\pm}standard$ error; $2.27{\pm}0.22{\mu}mol\;m^{-2}s^{-1}$) than in the P. densiflora ($1.63{\pm}0.12{\mu}mol\;m^{-2}s^{-1}$) stands. Mean soil water content and pH were also significantly higher in the Q. variabilis ($26.96{\pm}0.93%$, pH 5.19) than in the P. densiflora ($21.32{\pm}0.89%$, pH 4.87) stands, while soil temperature was not significantly different between the P. densiflora ($13.92{\pm}0.67^{\circ}C$) and in the Q. variabilis ($13.52{\pm}0.70^{\circ}C$) stands. $Q_{10}$ values were higher in the Q. variabilis (3.35) than in the P. densiflora (2.72) stands. The results indicate that soil $CO_2$ efflux rates in Q. variabilis stand could be more sensitive by the change of soil temperature compared with P. densiflora stand under a similar site environmental condition.

• Food Science and Preservation
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• v.9 no.3
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• pp.261-266
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• 2002

A transpiration model was selected and tested experimentally to predict transpiration into of Fuji apple stored in a normal air and controlled atmospheres (l∼3% O$_2$+ l∼3% CO$_2$) at 0$\^{C}$ and 98% RH for 6weeks. CA storage decreased the respiration rate of Fuji apple by 50% when compared with normal air storage. The transpiration rates of apple showed 50∼70% higher in normal air storage than those in CA storage and were decreased by increasing CO$_2$concentration under same concentration of O$_2$. The transpiration rates estimated by the selected model were in good agreement with experimental data for Fuji apples under controlled atmosphere conditions and normal air. When the respiratory heat generation rate u of Fuji apple increased with storage conditions, the evaporating surface temperature and transpiration rate also increased. But since some portion of respiratory heat was used as latent heat in the evaporating surface, the change of u value had a little effect on the determination of the evaporation temperature and the transpiration rate.

• Journal of muscle and joint health
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• v.1 no.1
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• pp.48-70
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• 1994

The purpose of this study was to determine the effects of music therapy on acute, subacute and chronic pain and depression of musculoskeletal trauma patients. The study was designed using nonequivalent control group pretest-posttest design within the framework of an adaptation model. The subjects were composed of forty patients, and twenty of them were assigned to the experimental group and twenty to the control group within the unit of patients. Data were summarized as follows : 1. There were significant changes of pain scores in an experimental and a control group measured before and after the treatment. 2. There were significant changes of pulse rates, respiration rates and systolic blood pressure, but were no significant changes of diastolic blood pressure in an experimental and a control group measured before and after the treatment. 3. There were no significant changes of the amount of ${\beta}$-endorphin in an experimental and a control group measured before and after the treatment. 4. There were no significant changes of depression scores in an experimental and a control group measured before and after the treatment. As a result, music therapy was a useful nursing intervention for relief of acute, subacute and chronic pain. Two suggestions could be made on the ground of the results of this study. 1. On the basis of endogenous pain control theory, it's necessary to research the changes of the amount of ${\beta}$-endorphin as the effect of the music therapy on patients having severe pain. 2. It's necessary to research the changes of the amount of ${\beta}$-endorphin according to the lapse of time after the music therapy for pain relief.

• ALGAE
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• v.31 no.1
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• pp.49-59
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• 2016

Ulva pertusa, a common bloom-forming green alga, was used as a model system to examine the effects of elevated carbon dioxide (CO₂) and temperature on growth and photosynthetic performance. To do this, U. pertusa was grown under four temperature and CO₂ conditions; ambient CO₂ (400 μatm) and temperature (16℃) (i.e., present), elevated temperature only (19℃) (ET; i.e., warming), elevated CO₂ only (1,000 μatm) (EC; i.e., acidification), and elevated temperature and CO₂ (ET and EC; i.e., greenhouse), and its steady state photosynthetic performance evaluated. Maximum gross photosynthetic rates (GP_max) were highest under EC conditions and lowest under ET conditions. Further, ET conditions resulted in decreased rate of dark respiration (R_d), but growth of U. pertusa was higher under ET conditions than under ambient temperature conditions. In order to evaluate external carbonic anhydrase (eCA) activity, photosynthesis was measured at 70 μmol photons m⁻² s⁻¹ in the presence or absence of the eCA inhibitor acetazolamide (AZ), which inhibited photosynthetic rates in all treatments, indicating eCA activity. However, while AZ reduced U. pertusa photosynthesis in all treatments, this reduction was lower under ambient CO₂ conditions (both present and warming) compared to EC conditions (both acidification and greenhouse). Moreover, Chlorophyll a and glucose contents in U. pertusa tissues declined under ET conditions (both warming and greenhouse) in conjunction with reduced GP_max and R_d. Overall, our results indicate that the interaction of EC and ET would offset each other’s impacts on photosynthesis and biochemical composition as related to carbon balance of U. pertusa.

• Child Health Nursing Research
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• v.11 no.4
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• pp.390-395
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• 2005

Purpose: To investigate the effects of a warm water-filled bag on body temperature, Oxygen demand, respiratory rate and blood sugar in high risk neonates. Method: The infants were assigned to two groups, 16 in the experimental and 20 in the control group. Infants in the experimental group was received $40{\~}42^{\circ}C$ warm water-filled bag therapy for 2 hours under radiant warmers. Infants in the control group were placed under the same kind of radiant warmers but without the warm water-filled bag. The following were measured every 30 minutes: rectal temperature, $O_2$ demand ($FiO_2$), and respiratory rate. Blood sugar was measured hourly. Result: Body temperatures increased significantly in the experimental group (P=0.0138), and there was a difference according to time (P=0.0001). Significant difference were found between the two groups fur $FiO_2$ (P=0.0180). There was no difference in respiratory rates between the two groups and rates according to time for the experimental group were also not significant (P=0.3569). No significant difference between two groups was found for blood sugar (P=0.2152), but there was a significant difference according to the times (P=0.0001). Conclusion: This results of this study indicate that a warm-filled bag is an effective means of resorting body temperature and reducing $O_2$ demand in high risk neonates.

• The Korean Journal of Physiology
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• v.20 no.1
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• pp.79-88
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• 1986

In an attempt to observe the effects obtained by the regular physical training, nine soldiers performed regularly the rope-skipping for nine weeks. All subjects were healthy and did not experience any special military training Programs. During the course of the training, their cardiopulmonary functions were measured in the resting and the Post-exercise recovery periods, and the values were compared with ones of the pre-trained. The test exercises loaded to the subjects were rope-skipping and step-rising & falling. The results obtained were as follows: 1) By the training, heart rates decreased very significantly in the resting and post-exercise recovery periods. And the effects began to bring out at the early stage, about the 7th day. 2) As the duration of the training increased, the systolic blood pressures decreased meaningfully in the resting and recovery periods. 3) Only in the early recovery phase after the exercise of the rope·skipping, the respiration rates decreased significantly by the training. 4) The lighter the intensity of the test exercise loaded was, the more prominent the effect of the physical training on the cardiopulmonary functions was. The above results suggest that the 9 week training of the rope-skipping would bring about the enhancement of the cardiopulmonary functions.

• Journal of Microbiology
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• v.42 no.4
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• pp.267-277
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• 2004

Effects of elevated $CO_2$ on soil microorganisms are known to be mediated by various interactions with plants, for which such effects are relatively poorly documented. In this review, we summarize and syn­thesize results from studies assessing impacts of elevated $CO_2$ on soil ecosystems, focusing primarily on plants and a variety the of microbial processes. The processes considered include changes in microbial biomass of C and N, microbial number, respiration rates, organic matter decomposition, soil enzyme activities, microbial community composition, and functional groups of bacteria mediating trace gas emission such as methane and nitrous oxide. Elevated $CO_2$ in atmosphere may enhance certain micro­bial processes such as $CH_4$ emission from wetlands due to enhanced carbon supply from plants. How­ever, responses of extracellular enzyme activities and microbial community structure are still controversy, because interferences with other factors such as the types of plants, nutrient availabilitial in soil, soil types, analysis methods, and types of $CO_2$ fumigation systems are not fully understood.

• Fire Science and Engineering
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• v.22 no.3
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• pp.293-299
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• 2008

From January, 2004 to July, 2007, 97 patients were diagnosed with Acute coronary syndrome(ACS) in Emergency Medical Center in Jecheon City in Korea. Among 97 patients, the prehospital assessment rates were as follows ; blood pressure check(27.80%, pulse rate check(33.0%), respiration check(23.7%). In hospital emergency care, oxygen supply was 52.6%, absolute bed rest was 12.4%, electrocardiogram(EKG) check was 4.1%, and nitroglycerin and intravenous fluid therapy was 0%. Therefore, ACS patients have not received sufficient prehospital cares till now. In order to improve the proficiency of the first aid emergency medical technicians(EMTs), it is necessary to provide the continuing On-the-job training(OJT) programs for prehospital emergency care.

• Asian-Australasian Journal of Animal Sciences
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• v.25 no.9
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• pp.1276-1284
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• 2012

A 12-wk experiment was conducted to examine the hematological changes, survival, and respiratory exchange in the olive flounder, Paralichthys olivaceus, during starvation. The growth, survival and respiratory exchange rates of the starved group were lower than those of the fed group during the experiment. Blood analysis, including hematocrit, hemoglobin, red blood cells, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and mean corpuscular volume, did not differ significantly (p>0.05) between the fed and starved groups at the end of the experiment. There were no significant differences in plasma cortisol, glucose, $Na^+$, $Cl^-$, $K^+$, or aspartate aminotransferase between the fed and starved groups (p>0.05). Alanine aminotransferase levels were higher in the starved group than in the fed group, whereas plasma osmolality was lower in the starved group than in the fed group. It was shown that starved fish had various problems after four weeks, which did not occur in the fed group. Long-term starvation is infrequent in aquaculture farms. However, starvation studies of this kind are very useful for a basic understanding of how physiological changes affect fish health, life expectancy, and growth.