• Title/Summary/Keyword: Dormant

Search Result 262, Processing Time 0.025 seconds

NUTRITIVE EVALUATION OF FOURWING SALTBUSH IN GROWTH AND DIGESTIBILITY TRIALS WITH HARNAI LAMBS IN UPLAND BALOCHISTAN

  • Rehman, Atiq-ur;Rafique, Shahid;Ali, Amanat;Munir, M.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.3 no.4
    • /
    • pp.299-303
    • /
    • 1990
  • Twenty-four Harnai lambs 6 to 7 month old, weighing $16{\pm}2kg$ were used in a completely randomized design in growth and digestibility trials to study fourwing saltbush ratio supplemented with cotton seed cake. The animal were divided at random into three groups of 8 animals each. Three iso-nitrogenous (10.5% CP) experimental rations (1, 2 and 3) containing wheat straw + lucerne hay (24:76); fourwing saltbush (Atriplex canescens) + cotton seed cake (71:29); and wheat straw + cottonseed cake (41:59); respectively, were allotted to each group randomly. All the animals were taken out for grazing in a dormant native range for about 3 hours in the afternoon during the growth trial. The growth trial lasted for 8 weeks followed by a digestibility trial. At the end of 8 weeks lambs on ration 3 had gained significantly (p<0.10) more weight compared to those on rations 1 and 2 which maintained their body weight. The crude protein digestibility of the fourwing saltbush based ration was comparable with the other two treatments (71 vs 70 and 71%). However, the digestibility of dry matter (41%), acid detergent fibre (13%) and neutral detergent fibre (22%) of this ration was significantly lower (p<0.10) than the other two diets. The results suggest that lambs can be maintained on fourwing saltbush during winter without significant loss in body weight with 30% extra protein concentrate supplementation.

Change in the Conformation of $p47^{phox}$ by Sodium Dodecyl Sulfate, an Activator of the Leukocyte NADPH Oxidase

  • Park, Jeen-Woo;Park, Hee-Sae
    • BMB Reports
    • /
    • v.31 no.3
    • /
    • pp.227-232
    • /
    • 1998
  • The leukocyte NADPH oxidase of neutrophils is a membrane-bound enzyme that catalyzes the production of $O_2^-$ from oxygen using NADPH as an electron donor. Dormant in resting neutrophils, the enzyme acquires catalytic activity when the cells are exposed to appropriate stimuli. During activation, the cytosolic oxidase components $p47^{phox}$ and $p67^{phox}$ migrate to the plasma membrane, where they associate with cytochrome $b_{558}$, a membrane-bound flavohemoprotein, to assemble the active oxidase. The oxidase can be activated in a cell-free system; the activating agent usually employed is an anionic amphiphile such as sodium dodecyl sulfate (SDS). Because $p47^{phox}$ can translocate by itself during activation, the conformational change in $p47^{phox}$ may be responsible for the activation of NADPH oxidase. We show here that the treatment of $p47^{phox}$ with SDS leads to an increase in the reactivity of the sutbydryl group of cysteines toward N-ethylmaleimide, indicating that the conformational change occurs when $p47^{phox}$ is exposed to SDS. We propose that this change in conformation results in the appearance of a binding site through which $p47^{phox}$ interacts with cytochrome $b_{558}$during the activation process.

  • PDF

Design and Implementation of specialized Web 2.0 Travel Agency System (특화된 웹2.0 여행사 시스템의 설계 및 구현)

  • Kim, Jung Sook;Lee, Ya Ri;Hong, Kyung Pyo
    • Journal of Korea Society of Digital Industry and Information Management
    • /
    • v.5 no.1
    • /
    • pp.9-22
    • /
    • 2009
  • This paper is an explanation of a design and an implementation of Web 2.0 online travel agency system for frequent decision-making. On the Web 2.0 travel agency system, optimized information is obtained by applying data mining technology such as association rules, decision trees, and neural networks, and this system is a unified system that consists of the block systems of hotels, ground traffic, and flights in tour packages of a travel agency system. Furthermore, it is implemented to manage the system that is not for the administrator of a travel agency system, but for users or communities that use the system need their own information. The expected effect of this system is to maximize the investment company's efficiency through a new-concept interest model created by B2C customers, and also B2B small and medium-sized travel agencies adopting the system. As a result, it is a system that stimulates dormant customer activity and prevents good customers from leaving by maximizing the merit and capacity of the existed web site for marketing. Moreover, this system is also a model for people who plan customized travel agency business, and will show a way for the domestic and international travel agency industry's globalization.

Changes of Catalase and Peroxidase Activities with Indole Acetic Acid in the Dormant Bark of Populus euramericana cv. gelrica (휴면기간중(休眼期間中)의 Populus euramericana cv. gelrica 수피(樹皮) 조직내(組織內)에서 일어나는 과산화물제거산소(過酸化物除去酸素) 활성(活性) 및 식물(植物) 호르몬의 변화(變化)에 관한 연구(硏究))

  • Ahn, Young-Hee;Yoo, Won-Hyung;Lee, Kee-Young
    • Journal of the Korean Wood Science and Technology
    • /
    • v.17 no.3
    • /
    • pp.61-66
    • /
    • 1989
  • 포플라 세포(細胞)의 Sucrose gradient 원심분리(遠心分離)에 나타난 세포(細胞)분획은 6개의 band 및 침전으로 분리(分離) 되었다. Peroxidase의 활성변화(活性變化)는 휴면기(休眼期)에 높아졌으며, 자발적(自發的) 휴면(休眠)이 타파되면서 낮아지기 시작하였다. 휴면기(休眠期)에 급격히 높아진 Peroxidase 활성(活性)은 Peroxidative 활성(活性)을 지닌 세포내(細胞內) Microbody에 존재(存在)하는 것으로 사료된다. Catalase의 활성(活性)은 11월(月), 12 월(月) 1월(月)의 휴면기(休眼期)에 활성(活性)이 낮았으며. IAA의 농도는 휴면초기(休眼初期)에 감소하기 시작하여, 12월(月)에 최저(最低)가 되었다. 자연휴면(自然休眠)이 타파된 1월(月)부터는 IAA 농도가 증가하기 시작하여 4월(月)의 발아기(發芽期)까지 계속되었다. 이와같은 Peroxidase, Catalase를 비롯한 IAA의 변화(變化)는 봄철의 발아(發芽) 및 재생장(再生長)과 가을철 휴면조절(休眠調節)에 영향을 미치는 것으로 사료된다.

  • PDF

METHODOLOGY TO ENHANCE THE PREDICTABILITY OF I/O DATA EXCHANGE BETWEEN DEVICE AND TASKS (장치와 태스크 간 입출력 데이터 교환의 예측성 향상 방안)

  • Koo, Cheol-Hea;Yang, Koon-Ho;Choi, Seong-Bong
    • Journal of Astronomy and Space Sciences
    • /
    • v.24 no.4
    • /
    • pp.451-456
    • /
    • 2007
  • Data coming from devices shall be transported to a specific task to be used in a software with the most accurate time and data integrity. During this process, a potential cause for invoking structured hazard and performance degradation is dormant. In this paper, a method which can protect the data integrity from the possible data corruption when collision has happened during I/O data exchange between device and tasks is presented. Also, an example diagram of mechanism according to the method is shown and the effect, merits and demerits of the method is evaluated.

Generation of Dummy Messages Depending Upon the Location Privacy Level in Sensor Networks (센서 네트워크에서 위치 기밀 수준에 따른 더미 메시지 생성)

  • Tscha, Yeong-Hwan
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.11 no.9
    • /
    • pp.861-868
    • /
    • 2016
  • Dummy messages are usually generated for faking in preserving the location privacy of a sink or source against the global eavesdropping in wireless networks. In this paper, we propose a new method in which a certain number of nodes determined by considering the required privacy level are made to transit to the dormant state doing nothing so that the total number of dummy messages is reduced, while the paths from the sink to the sources are ensured. Through simulation we verify the success ratio of path establishments between the sink and a set of sources and the location privacy level of them.

Growth Characteristics and Demography of Polygonatum involucratum and Polygonatum humile Ramet Population (용동굴레와 각시둥글레의 생장특성과 라메트 개체군의 동태)

  • Choung, Yeon-Sook
    • The Korean Journal of Ecology
    • /
    • v.14 no.3
    • /
    • pp.305-316
    • /
    • 1991
  • Growth hadit and demograph in a mature population of polygonatum and polygonatum humile in kanghwa island were studied for two growing seasons. Shoots of two species emerged early spring from the growing apices of the underdground rhizomes which had persisted for up to 1~5 year.after flowering, the ramets produced two rhizome buds at the shoot base. Bacause of the apical dominance in the rhizome system, a new rhizome was developed from only one bud, an actual bud,and the other latent buds were suppressed sothat remained dormant. The latent dud produced a new rhizome only when the actual dud was severed by the herbivores or by the physical obstacles. Therefore, the ramet number is not increased by the new rhizome from the latent bud. however, new ramets dould sometimes grow from latent buds which had been produced more than a year ago. Production of these ramets was main means increasing the ramet numbew and widening the potential zone of exploitation. Changes in size class of each ramet were noyiceable after a tear in small size-classes. Small ramets replaced themselves with larger-sized ramet, while large ramets with similar-sized or smallar-sized ramets. ramet numbers were average 0.82and 1.14 times of those fromthe previous year inp. involucratum and p. humile, though there was between-site variation. Almost all the ramets in the quadrats were alive during the growing season. when the entire rhizome systems were excavater next spring, there were many rhizomesegments without shoots, especially in p. involucratum. therefore, the drcrease of ramet number in p. involucratum in probably due to the climatic factors of winter.

  • PDF

The Possible Role of SCO3388, a tmrB-like Gene of Streptomyces coelicolor, in Germination and Stress Survival of Spores

  • Kwon, So-Yeon;Kwon, Hyung-Jin
    • Journal of Applied Biological Chemistry
    • /
    • v.56 no.3
    • /
    • pp.165-170
    • /
    • 2013
  • The SCO3388 gene from Streptomyces coelicolor is homologous to tmrB, the tunicamycin resistance gene of Bacillus subtilis. The SCO3388-inactivation strain (SY-tbl-1) was generated by replacing SCO3388 with thiostrepton resistance gene. Spores of S. coelicolor derivatives were prepared on mannitol-soy flour (MS) agar on which SY-tbl-1 displayed no significant defect in growth and development. When plated on R4 agar, spores of SYtbl-1 displayed retardation in growth and sporulation, whereas its mycelium gave rise to normal growth. Thus, SCO3388 is suggested to be involved in the dormant spore germination. Expression of SCO3388 under the ermE1 promoter restored but only partially the ability to sporulate in SY-tbl-1. Neither SY-tbl-1 nor SY-tbl-1/ermE1p-SCO3388 showed a difference in tunicamycin resistance to the wild type whereas, interestingly, the introduction of ermE1p-SCO3388 dramatically enhanced spore survival to heat and detergent treatments, suggesting that SCO3388 might play a role in the maintenance of spore cell wall integrity.

A Study on the Improvement of Reliability Prediction Model for Guided Missile (유도탄의 신뢰도 예측 모델 개선에 관한 연구)

  • Seo, Yang Woo;Yoon, Jung Hwan;Kim, Hee Wook;Kim, Jung Tae
    • Journal of the Korean Society of Systems Engineering
    • /
    • v.16 no.1
    • /
    • pp.9-17
    • /
    • 2020
  • Currently, Storage Reliability is analyzed when predicting the reliability of guided missile. However, Mission Reliability and Logistics Reliability should be analyzed according to the definition of reliability in MIL-STD-785B. Therefore, it is necessary to accurately predict the reliability of guided missile based on the definition of reliability. In this paper, we proposed improved the reliability procedure and model for guided missile based on which the definition of reliability considering the mission profile. The proposed model can calculate the final failure rate by applying the ratio of the dormant and storage according to the mission profile. The proposed model has been confirmed to be more accurate than the existing model compared to the actual failure rate value. The results of this study can be useful for applying the reliability prediction to any guided missile.

Herpes Zoster Ophthalmicus in a Patient with Malignant Lymphoma (악성림프종 환자에서 발생한 안부 대상포진)

  • Lee, Jun-Hak;Kim, Hyung-Tae;Park, Jun-Beom;Park, Sang-Cheol;Kwon, Young-Eun
    • Journal of Hospice and Palliative Care
    • /
    • v.8 no.1
    • /
    • pp.52-56
    • /
    • 2005
  • Herpes zoster (HZ) is an acute infection of the unilateral sensory dermatome caused by varicella-zoster virus (VZV) and is characterized by vesicular eruption and unilateral pain along the involved dermatome. Although the pathogenesis of HZ is incompletely understood, it is thought that when cell-mediated immunity falls below a critical level, dormant VZV within cells of the sensory ganglia are allowed to replicate and infect the host with the resultant clinical presentation of HZ. It has been associated with immunosuppressed states, such as advanced age, leukemia, lymphoma, chemotherapy and/or radiation treatment. We present a case of a 62-year-old female patient with malignant lymphoma suffering herpes zoster ophthalmicus who did not respond to conventional treatment, and in whom the application of various nerve blocks and patient-controlled analgesia produced moderate pain relief. The patient died twenty days later due to cardiopulmonary failure.

  • PDF