Kim, Ji-Yoon;Jung, Hyun-Min;Kim, Ji-Hye;Han, Seung-Baik;Kim, Jun-Sig;Paik, Jin-Hui
Journal of The Korean Society of Clinical Toxicology
/
v.9
no.2
/
pp.81-87
/
2011
Purpose: Incidents of suicide attempt and acute poisoning in the elderly population is rising. This study investigated the clinical nature of acute poisoning and differences between the survival and mortality groups in the elderly. Methods: We retrospectively investigated 325 patients with acute poisoning who visited the emergency department. Patients were divided into two groups, one survival and one death group. Information regarding patient sex, age, root cause of poisoning, time of year of poisoning, type of intoxicant, duration of time between intoxicant ingestion and arrival at the emergency department, total length of hospital stay, and any previous suicide attempts and subsequent hospitalization were collected. An initial Glasgow Coma Scale (GCS) and an initial and final Poison Severity Score (PSS) for each patient was calculated. Results: The survival rate for men was higher than for women in this study. The most common reason of drug intoxication was suicide, with accidental ingestion and substance abuse occurring in descending frequency. Seasonal factors were reflected in the data with the highest number of incidents occurring in spring and the lowest number in winter. Compared with the mortality group, the survival group had a lower initial PSS with a higher GCS. Conclusion: We conclude that being female, having suicide as a root cause, agrochemicals as an intoxicant, low initial Glasgow Coma Scale and high initial Poisoning Severity Score, are all associated with poor prognosis.
Seo, Sung;Park, Moon-Soo;Han, Young-Choon;Lee, Joung-Kyong;Jo, Mu-Hwan
Journal of The Korean Society of Grassland and Forage Science
/
v.9
no.3
/
pp.141-147
/
1989
This experiment was carried out to determine the effects of 13 different application levels of nitrogen(N), phosphorous($P_2O_5$) and potassium($K_2O$) fertilizer at pasture establishment on the winter survival, early spring growth and dry matter(DM) yield, and contents of crude protein(CP) and carbohydrate resewes(CH0-R) of grasses in Suwon from September, 1987 to June, 1988. Winter survival of grasses was high (ca. 90 %) in the plots of N 80 kg, N 120 kg and $K_2O$ application, regardless of $P_2O_5$, while those in zero-N and zero-NPK plots were low as 76 % and 64 %, respectively. Close relationships were observed between winter survival and N & $K_2O$ fertilizer. Early spring growth was vigorous in N-fertilized plots. Heading rate at the first harvest was 50-70 % in all N-plots, regardless of $P_2O_5$ and $K_2O$, while those in zero-N and zero-NPK plots were very low as 20-26 % and 15-18 %,respectively. The DM yield of first harvest was higher in the plots of N 80 kg $ha^{-1}$, regardless of $P_2O_5$ and $K_2O$ levels, and those in zero-N and zero-NPK plots were very low (P < 0.05). The regrowth yleld was not significantly affected by fertilizer levels. The CP content was increased with increasing N level, but CHO-K contents (35-39 %)was not affected by fertilizer levels.Winter survival, early spring growth, DM yield and CP content were significantly influenced by N fertilizer at pasture establishment, regardless of $P_2O_5$ and $K_2O$ application. In this experiment, the compensation effect for spring yield was observed with more N application than usual in next early spring when deficient amount of fertilizer (especially N) was applicated at pasture establishment. Also the optimum application levels of N, $P_2O_5$ and $K_2O$ fertilizer could be recommended as 80, 200 and 70 kg $ha^{-1}$ in new establishing pasture, respectively.
Some physiological characteristics and cultivar differences of winter barley to salt stress were studied during seedling stage. Salt stress was caused by adding NaCl solution to the pot culture soil. Measurements of the responses to salt stress and of the responses after relief from stress were done in terms of leaf water potential, chlorophyll and free proline contents, seedling height and seedling dry weight, and survival rate of leaves. Under salt stress ($\Psi_{\pi}$ =-20bar) seedling height and seedling weight were decreased by 2~22% and by 25~39% respectively, showing some differences among cultivars. Chlorophyll contents was decreased by 33~49%, and free proline content was remarkably increased from control 0.2~0.3mg to salt stress 9.6~14.7mg. The leaf water potential of seedling grown under salt stress with NaCl solution($\Psi_{\pi}$ =-10 or -20bar) was decreased from control -3.3bar to salt stress -9.0bar or -16.2bar respectively but there were no large differences among cultivars with time after relief from salt stress. Leaf survival rate was high in order of Baegdong, Milyang12, Olbori, Durubori and Hyangmaeg, and decrease rate of seedling dry weight was low in the order of Baegdong, Olbori, Hyangmaeg, Milyang12, Durubori. The increase in free proline contents was high in the order of Milyang12, Hyangmaeg, Baegdong, Durubori and Olbori.
An ecological study on pathogenic vibrios was done in the aquatic environments of southern coast of Korea during summer in 1995, to investigate the distribution and relationship between pathogenic vibrio and zooplankton. Furthermore, special emphasis was given to study on the efforts of zooplankton existence on the wintering of Vibrio cholerae in the aquatic region in Korea. During the study period, pathogenic vibrios were isolated from the samples such as V. parahaemolyticus, V. vulnificus, V. mimicus, and V. cholerae non O1, but V. cholerae O1 was not detected in any sample submitted in this study. Adsorption ratio of V. parahaemolyticus onto zooplankton was higher than that of E. coli. The efficiency of adsorption was found to be on the concentration of NaCl and other ions found in sea water. For example, adsorption ratio of V. parahaemolyticus were $75\%\;at\;5\%_{\circ}$ of NaCl solution and $55\%$ at same salinity of diluted sea water, but those were decreased as $20\%\;and\;7\%\;at\;15\%_{\circ}$ salinity of NaCl solution and diluted sea water, respectively. In addition, survival period of pathogenic vibrio was extended in the presence of live copepods at $25^{\circ}C$, but zooplankton existence has no significant effect on the survival rate at $5^{\circ}C$ in closed microcosm and also microalgae and dead copepods do not affect on the survival of V. parahaemolyticus. According to these experimental results, zooplankton has positive effects on the growth and survival rate of pathogenic vibrios in sea water during the summer season, but copepods have no significant effects on the growth and survival rate of them in winter season in Korea. Finally, authors suggest that V. cholerae is not able to over winter with zooplankton in adjacent sea water in Korea.
To develop new products for aquaculture, which fishermen at South Sea can get high income, after bay scallop was transplanted from Sandong province in China from October 17, 1996 to March 18, 1997 at Duekrang Bay in Janghung gun and Kamak Bay in Y대녀 City on Chollanam province, Sumjin river estuary in Hadong gun and Gejae Bay in Keoje city on Kyongsangnam proince. Temperature was decreased from 20.5$^{\circ}C$ to 5.1$^{\circ}C$ in February and then it was increased to 12.0 in March. Ranges of salinity, DO and Chlorophyll-a were 22.40-34.70 psu, 5.24-9.77 mg/l and 1.27-22.28 $\mu\textrm{g}$/l, respectively, and low temperature, sudden changes of salinity and low concentration of chlorophyll-a influenced the growth of bay scallop. bay scallop in the rearing period showed the fastest growth from October 17 to November 18 through the every size rages, while it grew slowly or stopped growing from December 18 to March 18. Among 4 transplanted areas, young scallop at Duekrang Bay showed the fastest growth and then Kamak Bay, Gejae Bay, Sumjin estuary in order. The daily growth rate of young scallop in the middle size range (5.70%) was higher than those in large (2.07%) and small (5.49%) size range. The meat weight index showed the highest in December. Survival rates from October to December were high, not related to the size ranges, but survival rate of the small young scallop from January to March was higher than Those of the rest. As the Result, transplanted bay scallop at South Sea was shown to grow by the middle of December (around 1$0^{\circ}C$ temperature).
Journal of the Korean Institute of Landscape Architecture
/
v.33
no.5
s.112
/
pp.69-82
/
2005
These studies were carried out (1) to investigate the growth characteristics of Sedum album L. in the field, (2) to propose a suitable shallow peen roof system for this plant, and (3) to evaluate plant growth in the proposed system over the long term. The growth characteristics, such as morphological properties, growth habit, shade tolerance, and flowering, were surveyed. In experimental shallow green-roof systems, the effects of drainage type, substrate type, and soil depth on plant growth were investigated. Then drought tolerance was investigated. After planting Sedum album L. in the proposed system survival rate, cover, and resistance to insects, heal and cold were evaluated for about 2 years. The results of these studies are summarized below. 1. In the field, the aboveground part of Sedum album L. did not die back during the winter. Plant height was 4$\sim$7 cm. Roots were distributed to a depth of 5$\sim$7 cm. Sedum album L. is a compact ground-cover plant that spreads vigorously. Shading condition of less than $30\%$ of full sunlight didn't cause any trouble, but shading conditions above $87\%$ made the shape of the shoots and leaves abnormal. The plant bloomed from June to August and had a rather large compound umbel of white, star-shaped flowers. 2. Two systems, a drainage-blend-10 cm soil depth and a reservoir$\cdot$drainage-blend-15 cm soil depth, performed best in terms of cover, fresh weight, and dry weight. The first has an advantage for green roofs because it is lighter than the latter. 3. In drainage-blend-10 m soil depth and modified reservoir · drainage-blend-10 cm soil depth system no plants died for about 4 months after stopping the irrigation. The visual quality of the latter system was above 5 for 4 months and that of the former was under 5 after 2 months. In the field, however, the drought tolerance of Sedum album L. grown in the former would be enough to withstand the dry season. Considering the urban ecosystem and the importance of healthy growth the modified reservoir $\cdot$ drainage-blend-10 cm soil depth system was finally recommended. This system was composed of a 4 cm thick drainage layer and drain outlets placed at a height of 2.5 cm. 4. In the proposed system, the survival rate was $100\%$, and there was no injury induced by insects and heat. The leaf density decreased a little in winter. Cover increased throughout the year. Sedum album L. was planted with a cover of 72$cm^{2}$ on 3 April 2003; on 16 June 2003 and 15 June 2004, cover was $132.66\pm$5.87 $cm^{2}$(1.8 times) and $886.98\pm$63.51 $cm^{2}$(12.3 times), respectively.
Decrease in seawater temperature during winter is one of the most important and serious issues confronted by fish net-cage aquaculture farms. This can become the cause of the manifestation of diseases and ensuing mass mortality. The present study was conducted to assess the survival rate, the range of limited low-temperature, the response of oxidative stress in the blood of red sea bream Pagrus major with decrease of water temperature. Low-lethal temperature for 7 days of P. major ($7day-LT_{50}$) was $6.54^{\circ}C$ (confidence limit: $6.31{\sim}6.71^{\circ}C$). Oxygen consumption rate was decreased with lower temperature. It showed the minimum value at the range of low-lethal temperature. Osmolality at $5^{\circ}C$ and $6^{\circ}C$ experimental group was higher significantly than control group. SOD (superoxide dismutase) activity was increased significantly at $5^{\circ}C$ experimental group compared to control group. This study data will be used to determine the appropriate area for aquaculture of red sea bream. It also manage fish net-cage farm to cope with the mass mortality occurring frequently during winter season.
Physiological responses of mullet Mugil haematocheilus to cold shock in winter were investigated. The experimental mullets were initially acclimated at $10.0^{\circ}C$ and then the water temperature was reduced to $-1.2^{\circ}C$ for cold shock experiment. The stress responses was monitored for nearly 50 hours. The parameters monitored include survival rate, plasma alanine aminotransferase (ALT), aspartate aminotransferase (AST), glucose (GLU), total protein (TP), electrolytes $(Na^+,\;K^+,\;Cl^-)$, cortisol and thyroid hormones $(TT_4,\;TT_3,\;FT_4\;and\;FT_3)$. With the exception of the TP and electrolytes, most parameters changed significantly during the cold shock. The survival rate did not change from $10^{\circ}C\;to\;-0.6^{\circ}C$, but decreased significantly below $-1.0^{\circ}C$, and was zero at $-1.2^{\circ}C$. The plasma AST and ALT concentrations increased remarkably from $2.5^{\circ}C\;to\;0.5^{\circ}C$ and from $2.5^{\circ}C\;to\;1.5^{\circ}C$, respectively, and then declined rapidly as the temperature decreased to $-1.2^{\circ}C$. The plasma GLU concentration did not change until -0.5'E, and then the concentration increased significantly at $-1.2^{\circ}C$. The plasma cortisol concentration increased remarkably from $2.5^{\circ}C\;to\;-0.5^{\circ}C$, and then declined at $-1.2^{\circ}C$. The plasma thyroid hormones showed two changes during the cold shock. Both plasma 74 concentrations increased remarkably from $2.5^{\circ}C$\;to\;0.5^{\circ}C$, then declined rapidly until $-1.2^{\circ}C$, while both plasma 73 concentrations decreased significantly from $10^{\circ}C\;to\;2.5^{\circ}C$, and then remained significantly lower than the concentration at $10^{\circ}C$.
Matsumuraeses phaseoli is one of the main pests that attack the flowers and pods of red bean (Vigna angularis) and mungbean (Vigna radiata) in Korea. To elucidate the developmental characteristics and over-wintering stage of M. phaseoli, several stages of the insect were observed through artificial rearing under outdoor conditions in Suwon ($37^{\circ}$16'N $126^{\circ}$59'E 35ASL), Korea. In colonies in which neonate larvae were reared at about 2-week intervals for more than a year, the developmental period from larva to adult emergence became longer from spring to summer, but shorter from summer to autumn; aestivation was not observed during the summer season. The colony in which rearing started on Oct 8, 2008 over-wintered as pupae and emerged in late April next year with a survival rate of 6%. However, the colony in which the rearing started on Oct 23, 2008 over-wintered as mature larvae, pupated in late April, and emerged in early and mid-May with a survival rate of 2%. When the fifth instar larvae were transferred outside from the laboratory ($25^{\circ}C$, 15L:9D) between November and February, no larvae could survive during the winter season. Some newly laid eggs and newly emerged adults could not hatch and could not survive, respectively, in outdoor conditions in November and December. These results suggest that neonate larvae of M. phaseoli that hatch in October can over-winter as late larvae or pupae in Suwon, Korea.
Journal of The Korean Society of Grassland and Forage Science
/
v.29
no.4
/
pp.321-328
/
2009
This experiment was carried out to investigate the effect of cultivar and seeding date on the winter survival rate, quality and DM yield of Italian ryegrass on paddy field for three years in Suwon. Seeding started from 30th Sep. 2003. at intervals of five days and finished 20th Oct. New varieties of Italian ryegrass used in this experiment were "Kospeed", "Kowinmaster" and "Hwasan 101". The winter survival average rate of 5th Oct. seeding plot was 89.8% and it decreased with delayed seeding date. The heading date of "Kospeed" was 7th~13rd May, "Kowinmaster" was 16th May, but "Hwasan 101 ho" didn't show heading until 17th May. Dry matter (DM) yields of 30th Sep. seeding plot were Kospeed 7,909kg/ha, Kowinmaster 6,398 kg/ha and Hwasan 101 ho 5,204 kg/ha. DM yield was decreased with delayed seeding date. Total digestible nutrient (TDN) yield was also decreased with delayed seeding date. Crude protein (CP) content was the highest in Kospeed. seeding plot as 18.3% and in vitro dry matter digestibility (IVDMD) was not showed significant difference among seeding dates.
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