• Title/Summary/Keyword: alleviation effects

Search Result 200, Processing Time 0.028 seconds

Internal pressure dynamics of a leaky and quasi-statically flexible building with a dominant opening

  • Guha, T.K.;Sharma, R.N.;Richards, P.J.
    • Wind and Structures
    • /
    • v.16 no.1
    • /
    • pp.61-91
    • /
    • 2013
  • An analytical model of internal pressure response of a leaky and quasi-statically flexible building with a dominant opening is provided by including the effect of the envelope external pressure fluctuations on the roof, in addition to the fluctuating external pressure at the dominant opening. Wind tunnel experiments involving a flexible roof and different building porosities were carried out to validate the analytical predictions. While the effect of envelope flexibility is shown to lower the Helmholtz frequency of the building volume-opening combination, the lowering of the resonant peak in the internal and net roof pressure coefficient spectra is attributed to the increased damping in the system due to inherent background leakage and envelope flexibility. The extent of the damping effects of "skin" flexibility and background leakage in moderating the internal and net pressure response under high wind conditions is quantified using the linearized admittance functions developed. Analytical examples provided for different combinations of background leakage and envelope flexibility show that alleviation of internal and net pressure fluctuations due to these factors by as much as 40 and 15% respectively is possible compared to that for a nominally sealed rigid building of the same internal volume and opening size.

A study on Policy Direction for Restructuring of Korean Fisheries-Case Analysis of Selected Countries (어업구조조정 정책 방향에 관한 연구-외국사례 연구를 통한 분석)

  • Chae, Dong-Ryul
    • The Journal of Fisheries Business Administration
    • /
    • v.41 no.1
    • /
    • pp.129-156
    • /
    • 2010
  • Well-deviced buyback programs may be detrimental to achieve sustainable fisheries. However, it is not difficult to find undesirable examples that the result of buyback program have no impact on fish stocks or the sustainability of the fishery. This paper discusses the problems and policy directions for successful restructuring of Korean marine fisheries through comparative analysis of selected cases from five main countries including Japan, Norway, Italy, Taiwan and Australia. From the analysis, this study demonstrated that Korean buyback program just pursue the reduction of boat number but passed over alleviation of the real ability in fishing industry. Although there were clear decrease of fishing effort in a certain parts of fisheries and some evidences of advancement in efficiency, it seemed hard to continue these effects because the Korean policy lacks consistency and coherence of systematic restructuring. To summary, four things are recommended for successful application of Korean buyback program; first is to establish the obvious goal of the program, second is to introduce downsizing in both fleet capacity and engine power, third is to conduct other management tools simultaneously to help resource restoration, and last, but not the least is to induce voluntary participation of fishermen providing opportunity to pursue their mutual interest.

Hepatoprotective Activity of Salidroside Isolated from Acer Termentosum Max on D-galactosamine Induced Hepatotoxicity in Rats (산겨릅나무에서 분리한 salidroside의 간보호 효과)

  • Kim, Sung-Hoon;Park, Hee-Juhn;Choi, Jon-Won
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.22 no.6
    • /
    • pp.1525-1531
    • /
    • 2008
  • Acer tegmentosum Max which is one of the specialized wildness medicinal herbs in gangwon province, has been widely used for hepatitis, liver cirrhosis, hepatic cancer, leukemia, diabetes mellitus, renal necrosis and edema, etc. In this study, the antioxidative and hepatoprotective effects of in vitro and in vivo were investigated in order to evaluate the possibility as hepatoprotective agents. Oral administration of methanol and butanol extact of Acer tegmentosum Max to d-galactosamine (D-GaIN) induced experimental liver injured rats was significantly reduced activities of marker enzymes(AST, ALT) and LDH activity in serum. Salidroside(Sal) isolated from the BuOH extract of Acer termentosum Max potenty showed the scavenzing effect on DPPH and inhibitory effect on lipid peroxidation. And significantly decrcease of MDA level in liver and activities of SOD GSH-Px and catalase were significantly improved by the treatment of Sal. Results of this study revealed that Sal could afford a significant protection in the alleviation of D-GaIN-induced hepatocellular injury.

The Efficacy of Opuntia ficus-indica for the Treatment of Chronic Otitis Externa in Dogs (백년초 추출물(Opuntia ficus-indica)을 이용한 개의 만성 외이도염 치료 효과)

  • Cho, Sung-Jin;Kim, Ok-Jin
    • Journal of Veterinary Clinics
    • /
    • v.23 no.3
    • /
    • pp.314-319
    • /
    • 2006
  • To determine the antimicrobial and anti-inflammatory efficacy of Opuntia ficus-indica for chronic otitis, we evaluated the effects of topical applications of the methanol extracts with 20 cases of dogs which had chronic malignant otitis by pathogens with antibiotic resistance. The dogs had revealed recurrent symptoms of malignant otitis and were not treated by conventional therapeutic agents. However, in this study, the clinical cure rates of Opuntia ficus-indica was 75% and the average alleviation period was $1.21{\pm}0.42$ week, and the mean recovery period was $1.06{\pm}1.06$ week after the initiation of treatment. As the results of this study, topical Opuntia ficus-indica extracts was found to be highly effective for the treatment of chronic malignant otitis with clinical cure rates of 75% within 1.06 weeks of therapy. Further evaluation of Opuntia ficus-indica extracts will allow us to establish and to optimize the therapeutic strategy for the malignant otitis in veterinary practice, and the potential usefulness of this complementary treatment on recurrent infectious pathology.

Effects of Lactobacillus brevis BJ20 Fermentation on the Antioxidant and Antiinflammatory Activities of Sea Tangle Saccharina japonica and oyster Crassostrea gigas (Lactobacillus brevis BJ20를 이용한 굴(Crassostrea gigas).다시마(Saccharina japonica) 발효 분말의 항산화 및 항염증 활성 효과)

  • Kang, Young Mi;Woo, Nam-Sik;Seo, Yong Bae
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.46 no.4
    • /
    • pp.359-364
    • /
    • 2013
  • Inordinate stress causes disorders of various systems in humans and activates defense mechanisms to maintain homeostasis in the body. Sleep is a vital, highly organized process regulated by complex systems of neuronal networks and neurotransmitters. Sleep is an essential biological process whose underlying regulating involves numerous anatomical structures and biochemical substances that can be compromised by stress and by the immune system. Gamma-amino butyric acid (GABA) is the main inhibitory neurotransmitter of the central nervous system, and activation of GABAA receptors is known to favor sleep. This study was conducted to evaluate the possible application of Lactobacillus brevis BJ20 fermentation to improve the functional qualities of sea tangle Saccharina japonica and oyster Crassostrea gigas. Antioxidant activity was determined by assaying levels of radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) and superoxide. L. brevis BJ20 fermentation of sea tangle and oyster enhanced both antioxidant and antiinflammatory activities. These results suggested that L. brevis BJ20 fermented sea tangle and oyster could be used for alleviation of stress and to promote sleep.

An Analysis of the Correlation between He-Ne Laser Therapy in Literature and Clinical Application (He-Ne 레이저에 대한 문헌과 이를 근거로 한 임상 활용 예의 비교 고찰)

  • Youn, In-Hwan;Kim, Nam-Kwen
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
    • /
    • v.19 no.2
    • /
    • pp.192-201
    • /
    • 2006
  • Objectives : Recently, He-Ne laser has been used for clinical purpose. We study the medical basis of He-Ne laser therapy and We make a proposal concerning the clinical application of using He-Ne laser in Medicine. Methods : We have selected data related to He-Ne laser therapy and study how to use He-Ne laser in clinic. Results : In biology, He-Ne laser therapy has been effects of an improve in skin regeneration an improve in peripheral and central nerve regeneration an improve in muscle regeneration, an anti-inflammation an alleviation of pain and a bone repair. In oriental medicine, He-Ne laser has been used to laser acupuncture and laser oriental physical treatment. In clinic, He-Ne laser have been used to care several parts like as facial palsy, facial spasm, trigeminal neuropathy, rhinitis and tinnitus. Recently, there is argument that He-Ne laser therapy is suitable to medical insurance. Conclusions : Laser therapy in oriental medicine is widespread and We can apply He-Ne laser to facial palsy, facial spasm, trigeminal neuropathy, rhinitis, tinnitus by using laser acupuncture or laser oriental physical treatment. Till now the whole mechanisms are not fully understood, so we hope to study these mechanisms actively and make suitable to medical insurance device in the near future.

  • PDF

Longitudinal Control of Acceleration Lanes and its Impact on Congestion Alleviation (가속차로의 길이 제어와 고속도로 접속부 혼잡저감 효과)

  • Shin, Chi-Hyun;Kim, Kyu-Ok
    • Journal of Korean Society of Transportation
    • /
    • v.23 no.5 s.83
    • /
    • pp.169-176
    • /
    • 2005
  • This paper introduces the dynamic control of acceleration lanes at freeway-ramp junctions. The feasibility of operation with flexible length of acceleration lane was tested with most possible traffic conditions. The operational qualify was also evaluated using average speed and total thru-put at both ramp section and freeway section. A CORSIM microscopic simulation model was used to evaluate the operation quality with a variety or volume conditions and three acceleration lanes, each representing different length categories. In addition, tollgate O-D data including travel times were obtained for two sections on the Gyeong-bu Freeway where an effective merging distance has been largely reduced. Its effect was analyzed and compared to the simulation results. Finally, the effects of acceleration lane are discussed and operational improvement at junctions is presented as research findings.

Comparison of safety and analgesic efficacy of diclofenac sodium with etodolac after surgical extraction of third molars: a randomized, double-blind, double-dummy, parallel-group study

  • Vaghela, Jitendra H.;Shah, Jigna H.;Patel, Jaladhi H.;Purohit, Bhargav M.
    • Journal of Dental Anesthesia and Pain Medicine
    • /
    • v.20 no.1
    • /
    • pp.19-27
    • /
    • 2020
  • Background: Surgical extraction of third molars is associated with postoperative pain and swelling at the extraction site. Pain is commonly managed using non-steroidal anti-inflammatory drugs (NSAIDs). Postoperative pain is usually moderate to severe in the first 12 h postoperatively and lasts for 3-5 days. However, with NSAIDs, these symptoms usually subside within 24 h. Diclofenac sodium and etodolac are NSAIDs, more selectively cyclooxygenase-2 inhibitors, with good analgesic efficacies. Methods: We compared the safety and analgesic efficacy of diclofenac sodium with etodolac peroral after surgical extraction of third molars in a double-blind, double-dummy, parallel-group study. The subjective pain improvement and pain relief after 2, 6, 24, 48, and 72 h using the visual analogue scale were measured as the study outcome. Results: Etodolac was equivalent to diclofenac sodium in pain alleviation at all postoperative time periods. No significant differences were found between diclofenac sodium and etodolac groups (P > 0.05). Both study medications were well tolerated and safe with mild adverse effects in only a few participants. Conclusion: Diclofenac sodium and etodolac are comparable in terms of analgesic efficacy and safety after surgical removal of third molars.

INFLUENCE OF DIRECT-FED MICROBIALS ON RUMINAL MICROBIAL FERMENTATION AND PERFORMANCE OF RUMINANTS: A REVIEW

  • Yoon, I.K.;Stern, M.D.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.8 no.6
    • /
    • pp.533-555
    • /
    • 1995
  • Direct-fed microbials (DFM) have been used to enhance milk production in lactating cattle and to increase feed efficiency and body weight gain in growing ruminants. Primary microorganisms that have been used as DFM for ruminants are fungal cultures including Aspergillus oryzae and Saccharomyces cerevisiae and lactic acid bacteria such as Lactobacillus or Streptococcus. Attempts have been made to determine the basic mechanisms describing beneficial effects of DFM supplements. Various modes of action for DFM have been suggested including : stimulation of ruminal microbial growth, stabilization of ruminal pH, changes in ruminal microbial fermentation pattern, increases in digestibility of nutrients ingested, greater nutrient flow to the small intestine, greater nutrient retention and alleviation of stress, however, these responses have not been observed consistently. Variations in microbial supplements, dosage level, production level and age of the animal, diet and environmental condition or various combinations of the above may partially explain the inconsistencies in response. This review summarizes production responses that have been observed under various conditions with supplemental DFM and also corresponding modification of ruminal fermentation and other changes in the gastrointestinal tract of ruminant animals.

From Self-care for Healthy People to Self-management for Cancer Patients with Cancer Portals

  • Azadmanjir, Zahra;Safdari, Reza;Ghazisaeidi, Marjan
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.16 no.4
    • /
    • pp.1321-1325
    • /
    • 2015
  • Self-care to prevent cancer and self-management to cope with the disease are two discrete effective mechanisms for improving of control and management of neoplasia. Both them have certain strategies and practices. Often the two are used interchangeably despite their different approaches. Strategies of self-care usually refer to prevention at different levels include primary, secondary and tertiary. In contrast, strategies of self-management are related to management and alleviation of unpleasant cancer-related symptoms and treatment-related side effects for improving the quality of life of cancer survivors. Successful promoting of self-care and self-management strategies need people and survivor empowerment. Within this context, innovative approaches open a new window. In this paper after a brief review of related strategies and practices, we provide an explanation of how cancer portals may play an important role in the empowerment process and what are key potentials for implementing of self-care and self-management strategies for cancer.