• Title/Summary/Keyword: Over-stocking

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The Impacts of Environmental Policy on Livestock Stocking and Location by Industry Size (환경정책이 축산업의 규모와 입지에 미친 파급효과 -축산농가 규모별 분석-)

  • Park, Dooho
    • Environmental and Resource Economics Review
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    • v.15 no.1
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    • pp.1-26
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    • 2006
  • This paper explores the relatilonship between state level environmental regulations and stocking and location decisions in the U.S livestock and poultry industry (beef, chicken, dairy and hogs), Rather than conduct this analysis on a species by species basis, the overall size of the livestock industry(expressed in animal units) and the size of Industry found on large, medium and small operations by state (48) and over time (29 years), which is panel data analysis, Generally, regulations seem to be induced by the structural change of industry; when industry creates externalities, regulators try to address them with policy tools to internalize them, Written regulatory stringency may not effect behavioral change; rather the state's willingness to enforce regulations seems to have a measurable influence. However, in the presence of rapid structural change, industry location is affected by written regulatory stringency. Policy enforcement activity was shown to influence inventory decisions in general and larger operations were found to be more sensitive to willingness to enforce than smaller operations.

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Investigation of Genetic Diversity between Wild-caught and Hatchery-reared Rock Bream (Oplegnathus fasciatus) Using Microsatellite DNA Analysis

  • Kim, Mi-Jung;An, Hye-Suck;Hong, Seong-Wan;Park, Jung-Youn
    • Fisheries and Aquatic Sciences
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    • v.11 no.2
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    • pp.82-87
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    • 2008
  • Marine fisheries are important natural resources and must be maintained, especially fish species that are important sources of food. Despite the increase in stocking programs to maintain fisheries with artificially raised fish, the genetic impact stocking has on the wild fry population has not been addressed. Genetic variation in rock bream, Oplegnathus fasciatus, within and between wild-caught parents and the $F_1$ generation produced by them in 1 day was assayed using nine highly variable micro satellite markers. The nine micro satellite loci used in this study displayed diverse polymorphisms, and in total, 98 different alleles were observed over all loci. Differences in genetic variability of the $F_1$ offspring compared to their wild-caught parents (brood stock) were observed in terms of allele frequency, gene diversity, and heterozygosity. Although the $F_1$ generation of rock bream was missing 16% of the micro satellite alleles, no significant reduction was found in mean heterozygosity of the $F_1$ population compared to the brood stock. Eight of nine loci showed significant Hardy-Weinberg equilibrium (HWE) deviations in the $F_1$ population, while the brood stock deviated from HWE at three micro satellite loci (KOF85, KOF360 and KOF374). These deviations showed mostly a deficit of heterozygotes. Our results provide evidence for genetic differences in the $F_1$ hatchery offspring compared to their wild-caught parents and reinforce the need for a series of consecutive egg collections to avoid the loss of genetic variability. This also further underscores the importance of monitoring genetic variability of hatchery populations for the conservation of natural rock bream resources.

Management for Gait Disturbance and Foot Pain in a Patient with Klippel-Trenaunay-Weber Syndrome : A case report

  • Choi, Yoon-Hee
    • Journal of The Korean Society of Integrative Medicine
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    • v.9 no.4
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    • pp.85-89
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    • 2021
  • Background : Klippel-Trenaunay-Weber syndrome (KTS) is a rare congenital medical condition characterized by complex vascular malformation. KTS consists of a classic triad of capillary malformation (hemangioma), venous malformations and bone or soft tissue hypertrophy causing limb asymmetry. The aim of this report is to describe management for gait disturbance and foot pain in a Patient with KTS using custom-made total contact insole. Case presentation : A 32-year-old man with KTS presented with a 3-year history of gait disturbance on hard surface due to right first toe pain and Achilles tendon tightness. The patient had soft tissue hypertrophy, varicose veins and port-wine stains over the right lower limb associated with KTS. True leg length discrepancy was 2 cm. We prescribed custom-made total contact insole to protect his deformed foot and correct leg length discrepancy. The insole of right side included wedge shaped heel lift and the insole of left side included full length lift to add extra support on unaffected side. Also, we provided compression stocking and physiotherapy including manual lymphatic drainage for lymphedema and stretching exercise for tightness in right lower extremity. At 3 years follow-up, postural alignment including pelvic obliquity was improved using a custom-made total contact insole. The degree of scoliosis and foot pain were also reduced. Conclusion : An individualized and multidisciplinary approach is essential regarding the complexity of comorbidities in patients with KTS. For patients with KTS, orthotic management should be considered to prevent and correct deformities related to KTS. Active orthotic management, compression stocking and physiotherapy can enhance the quality of life and function in patients.

Optimum Stocking Density of 3-year-old Pacific Abalone, Haliotis discus hannai Reared in Net Cage Culture (3년산 북방전복, Haliotis discus hannai의 해상가두리 양성 시 적정 수용밀도)

  • Lee, Si-Woo;Kim, Byeong-Hak;Kim, Tae-Ik;Son, Maeng-Hyun
    • The Korean Journal of Malacology
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    • v.31 no.2
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    • pp.93-101
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    • 2015
  • The effects of different stocking densities on the growth and survival rate of the 3-year-old pacific abalone, Haliotis dicus hannai were investigated in marine net cage for a year. Stocking densities in net cage ($2.4{\times}1.2m$) was set 15, 30, 45 and 60 percentage (= per)/sq m (square meter, $m^2$) with share to cross-sectional area per shelter. The water temperature during the testing period was $8.2^{\circ}C-22.1^{\circ}C$, and salinity is $33.5{\pm}0.6psu$, and dissolved oxygen is $7.87{\pm}0.86mg/L$. In the shell length (initial size : $71.50{\pm}2.28mm$) growth and shell breadth (initial size : $46.43{\pm}2.28mm$) of the test abalones, the absolute growth rate (ARG), daily growth rate (DGR) and specific growth rates (SGR) of the 15 per/sq m and 30 per/sq m were higher than those of 45 per/sq m and 60 per/sq m density group (P < 0.05). Also in the weight (initial weight : $35.7{\pm}8.1g$), it showed the same results. In survival rates, it were that 15 per/sq m and 30 per/sq m is significantly higher than 45 per/sq m and 60 per/sq m. Therefore, it was that the 15 per/sq m is optimized stocking density in marine net cages about the 3-year-old pacific abalone over 70 mm size. The result shown that total cross-sectional area under the shelter is based on 15 per/sq m ($2.4{\times}2.4m$, 354 number in a net cage) is suitable for fast growth and survival. But if the economy consider, optimized stocking density would be appropriate to accept 30 per/sq m ($2.4{\times}2.4m$, 710 number in a net cage).

Algorithms and Planning Horizons for a One-Plant Multi-Retailer System

  • Lee, Sang-Bum
    • Journal of the Korean Operations Research and Management Science Society
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    • v.13 no.1
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    • pp.10-23
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    • 1988
  • This paper examines a deterministic, discrete-time, finite-horizon, production/distribution problem for a one-plant multi-retailer system. Production may occur at the plant in each time period. Customer demands at each retailer over a finite number of periods are known and must be met without backlogging. The plant as well as the retailers can serve as stocking points. The problem is to find a minimum-cost production/distribution schedule satisfying the known demands. We show that under a certain cost structure a nested policy is optimal, and present an efficient algorithm to find such an optimal policy. Planning horizon results and some computational saving schemes are also presented.

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A Study of the Interior Restorations in the Pre-Modern Architecture(II) - Focused on Industrial curtains - (근대건축물 문화재의 실내장식 수복에 관한 연구(II) - 공장생산 커튼을 중심으로 -)

  • Kim Ranky
    • Korean Institute of Interior Design Journal
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    • v.14 no.1
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    • pp.142-150
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    • 2005
  • This study is arranged the principles of the preservation and restoration in pre-modern architecture, presented guideline of the Intoner restoration in there, and attempted relative-analysis by cases of Japan in curtain of Saporo Houheikan. The method of Original- restorations and Repairs must be preserved In materials and technologies in order to hand over the future generations. The process and method of restorations are the important Cultural Properties as Architecture's itself. And Restorations of industrial manufactures hold the the important position in restoration of pre-modern Architectures. Because industrial technologies are developed and forgotten in rapid. Specially, because industrial materials as curtains were apt to recognize as consumption goods, historicity in that are contained the history of fabric, industrial technologies, and relations of traditional technologies. Conclusionaly, restorations of interior materials in our country are required of \circled1the construction of workframe in search and restoration for original preservation, \circled2the conception of refaires and establishment of investigation, \circled3the stocking of restoration-technologies of pre-modern cultural properties of architectures, \circled4the recognitions of record-preservation, \circled5the improvement of organization, upbring of technicians, establishment of theorical systems.

Pangasiid Catfish Pangasius hypophthalmus Farming in Bangladesh: a Rural Survey in the Mymensingh Region

  • Sarkar, Reaz Uddin Md.;Khan, Saleha;Haque, Mahfuzul Md.;Khan, Mohammed Nurul Absar;Choi, Jae-Suk
    • Journal of Marine Bioscience and Biotechnology
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    • v.2 no.2
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    • pp.94-101
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    • 2007
  • The status of recently expanded exotic pangasiid catfish Pangasius hypophthalmus, Pangasiidae farming in rural Bangladesh has been studied for finding research needs, through knowing the culture methods, associated activities and problems, to make the farming sustainable. Data were collected using participatory rural appraisal (PRA) tools in nine villages in three upazilas (sub-district) of Mymensingh district. The farmers have not got any formal training and have developed their knowledge on farming the fish through practice over years and sharing of knowledge among fellow farmers. Linked industries, e.g. hatcheries, nurseries, feed mills, trading of feed and fish etc. have developed that created employment opportunities. Most of the farmers produce two crops a year. About 90% of the farmers were found to practice mono culture of pangasiid catfish at high stocking density. The feeding rates started from 10-15% of the body weight per day at fingerling stage that reduced to 4-6% with growth. The average yield was found to be 25 tonslha/year. The livelihood of the farmers has been improved through farming the fish. Women and children were rarely engaged in the activities. The identified major problems in farming the fish were water quality deterioration, high feed costs and declining consumer demand and market price.

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Effects of Water Temperature, Stocking Density and Feeding Frequency on Survival and Growth in the Oblong Rockfish Sebastes oblongus Larvae (황점볼락, Sebastes oblongus의 자·치어 성장과 생존에 미치는 수온, 사육밀도와 먹이공급 횟수의 영향)

  • Yoon, Seong Jong;Kim, Dae Hyun;Hwang, Hyung Gue;Song, Gi Chul;Kim, Young-Chul
    • Korean Journal of Ichthyology
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    • v.19 no.2
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    • pp.154-159
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    • 2007
  • The oblong rockfish, Sebastes oblongus has recently drawn attention from aquaculturists because of its marketable value and tolerance against winter water temperature in the southern coastal waters of the Korean peninsula. In the study of temperature effect on growth, water temperature $16^{\circ}C$ showed best growth. The upper temperature of the fish showed feeding activity was $27^{\circ}C$ over which the fish showed no longer feeding activity. Stocking density was also a critical factor affecting the growth and survival of the juvenile fish. The best growth was in the density of 200 juveniles/L, while the highest survival was in the density of 100 juveniles/L. A feeding experiment was conducted to determine the effects of feeding frequency on growth and survival. A feeding scheme of twice a day was good enough in the sense of growth, survival, and economy. These results indicate that parameters such as water temperature, density, tank size and feeding frequency are consideration for best seed production of the fish.

Prevention Effects of Graduated Compression Stockings and Intermittent Pneumatic Compression on Deep Vein Thrombosis in SICU Patients: Pilot Study (항혈전스타킹과 간헐적공기압박기 적용이 중환자의 심부정맥혈전 발생 예방에 미치는 효과: 예비조사)

  • Kim, Hwasoon;Cho, Ok Min;Kim, Ji Sun;Jang, Hai Ok;Kim, Yeo Kyeong;Kim, Seol Hee;Min, Hyo Nam;Kwak, Kyung Sun;Hong, Kee Chun;Kim, Jang Yong;Chung, Joonho
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.22 no.3
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    • pp.249-257
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    • 2015
  • Purpose: The purpose of this pilot study was to investigate the effects of mechanical interventions for deep vein thrombosis (DVT) prophylaxis in surgical intensive care unit (SICU) patients. Methods: The participants were assigned to the intermittent pneumatic compression (IPC) and graduated compression stocking (GCS) intervention. Patients who met the criteria were selected for comparison from our previous study. Data for 140 patients were included in the final analysis. Results: The mean age was 57.5 (${\pm}15.7$) and 61.4 % were men. About forty-seven percent of the participants were 61 years or over. In the second duplex scan, 3, 2 and 1 critically ill patients developed deep vein thrombosis in the control, GCS, and IPC groups, respectively. Incidences of DVT were 6.0%, 5.0%, and 2.0% for the control, GCS, and IPC groups, respectively. This difference was not significant. Relative risks of no intervention were 3.0 and 1.2 compared with IPC and GCS application. There were no significantly different variables among the three groups before the intervention except for diagnosis on admission. Conclusion: Although it may difficult to conclude that mechanical prophylaxis effectively prevents DVT among SICU patients because there was no statistical significance in this study, but incidence rates among the three groups differed greatly. The findings reveal that further study should be conducted with larger samples and randomized controlled trial for SICU patients.

Antidotes Stocking and Delivery for Acute Poisoning Patients at 20 Emergency Departments in Korea 2015-2017 (2015-17년 전국 20개 거점병원 응급해독제 비축 및 제공 결과)

  • Lee, Seungmin;Youn, Han Deok;Chang, Hanseok;Won, Sinae;Kim, Kyung Hwan;Oh, Bum Jin
    • Journal of The Korean Society of Clinical Toxicology
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    • v.16 no.2
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    • pp.131-140
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    • 2018
  • Purpose: The National Emergency Medical Center has been running a project for the storage and delivery of antidotes for acute poisoning patients of the Department of Health and Welfare, Korea. This study analyzed the results of this project over the past two years. Methods: The requests received by the National Emergency Medical Center and the data on the delivery process were analyzed. Results: This study analyzed a total of 121 patients with acute poisoning, who were requested to receive an antidote reserved at 20 key hospitals in 2015-2017, and whose age was $52.3{\pm}23.5\;years$; old; 54 were women. Intentional poisoning were 58.7%, and the home was the most common place of exposure (66.9%). The toxic substances were chemicals (32.2%), pesticides (27.3%), medicines (24.8%), and snake venom (4.1%). The patient's poison severity score was $2.4{\pm}0.7$ (median 3) indicating moderate-to-severe toxicity. Antidote administration was the cases treated in key hospitals 67.8% (82/121), in which transferred patients accounted for 57.3% (47/82). After receiving an antidote request from a hospital other than the key hospitals, the median was 75.5 minutes (range 10 to 242 minutes) until the antidote reached the patient, and an average of 81.5 minutes was required. The results of emergency care were intensive care unit (70.3%), general wards (13.2%), death (10.7%), and discharge from emergency department (5.0%). Conclusion: This study showed that the characteristics of acute poisoning patients treated with an antidote were different from previous reports of poisoned patients in the emergency department, and basic data on the time required for delivery from key hospitals was different.