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전체 선택해제
총 626건 검색
본문검색 결과만 보기
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이경호, 이기영, Lee. Gyeong-Ho, Lee. Gi-Yeong 대한전자공학회 電子工學會論文誌. Journal of the Institute of Electronics Engineers of Korea. SD, 반도체 9 Pages
대한전자공학회 電子工學會論文誌. Journal of the Institute of Electronics Engineers of Korea. SD, 반도체 2002, Vol.39 No.4 1-9 (9 pages)
DRAM에서 셀 파라메터들의 확률 분포를 고려하여 데이터 보유 시간에 대한 분포 특성을 계산하였다. 셀 파라메터와 셀 내부 전압의 과도 특성으로부터 데이터 보유 시간의 식을 유도하였다. 접합 공핍 영역에서 발생하는 누설 전류의 분포 특성은 재결합 트랩의 에너지 분포로, 셀 캐패시턴스 분포 특성은 유전체 성장에서 표면 반응 에너지의 분포 특성으로, 그리고 sense amplifer의 감도를 각각의 독립적인 확률 변수로 보고, monte carlo 시뮬레이션을 이용하여, 셀 파라메터 값들의 확률적 분포와, DRAM 셀들의 데이터 보유 시간에... -
Data Retention Time and Electrical Characteristics of Cell Transistor According to STI Materials in 90 nm DRAM
Shin. S.H., Lee. S.H., Kim. Y.S., Heo. J.H., Bae. D.I., Hong. S.H., Park. S.H., Lee. J.W., Lee. J.G., Oh. J.H., Kim. M.S., Cho. C.H., Chung. 대한전자공학회 Journal of semiconductor technology and science 7 Pages
대한전자공학회 Journal of semiconductor technology and science 2003, Vol.3 No.2 69-75 (7 pages)
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HPLC-RTS (high performance liquid chromatography-retention time shift)를 이용한 암모늄 이온의 안정동위원소 측정방법의 개선
안순모, 이지영, An. Soonmo, Lee. Jiyoung 한국해양학회 바다 : 한국해양학회지 6 Pages
한국해양학회 바다 : 한국해양학회지 2013, Vol.18 No.1 47-52 (6 pages)
retention time shift)는 안정동위원소 비와 좋은 상관관계를 보였다. 이 시스템은 측정 자료를 디지털 형태로 변환하는 장치까지 갖추어 컴퓨터 프로그램을 이용한 다양한 자료처리가 가능하다. 특히 Matlab$^{(R)}$ 이용하여 retention time 계산에 peak 면적을 이용함으로써 측정의 정확성을 높이고, 직선성을 향상할 수 있었다. 영산강 하구 해수를 가지고 실시한 $^{15}N$-암모늄 첨가 실험에서 $^{15}N/^{14}N$ 비율 변화를 HPLC-RTS법을 통해 측정하였으며, 식물성 플랑크톤에 의한 암모늄 섭취와 재광물화 과정을 각각 독립적으로... -
Time-course response of epichlorohydrin on epididymal histopathology in rats
Kang Hyeon Kim , In Sik Shin , Jeong Hyeon Lim , Sung Hwan Kim , Na Hyeong Park , Chang Jong Moon , Sung Ho Kim , Dong H 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 6 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2009, 제 49권 제 4호 2 279-284 (6 pages)
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교육포부 형성에서 시간지향성(time perspective)의 영향 ― 문화자본과 의미 있는 타자를 도구변수로 사용한 인과관계 분석 ―
한국교육사회학회 교육사회학연구 2013, 제 23권 제 2호 2 29-54 (26 pages)
본 연구의 목적은 서울시 소재 중학교 3학년 학생들을 대상으로 시간지향성이 교육포부 형성에 미치는 인과관계를 고찰하는데 있다. 본 연구에서는 두 변수의 원인과 결과로서 위 치를 설정하는 데 있어서 역의 인과관계의 가능성 및 두 변수의 관계가 생략된 허위변수에 의한 관계임을 방지하기 위하여 도구변수 방법을 적용하였다. 도구변수로는 독서취향과 의 미 있는 교사의 존재를 설정하였으며 이론적인 검토 및 일련의 통계적인 검증 절차를 통해 두 도구변수가 시간지향성에 대한 적절하고 유효한 도구변수임을 보였다. 이러한... -
사회적 제약이 시간지향성(time perspective)을 매개로 교육포부 형성에 미치는 영향
김경년, 임정만, 오석영 한국교육학회 교육학연구 26 Pages
한국교육학회 교육학연구 2012, 50권 4호 12 133-158 (26 pages)
본 연구에서는 서울시 소재 중학교 3학년에 재학 중인 학생들을 대상으로 사회적 제약이 시간지향 성을 매개로 교육포부 형성에 미치는 영향을 고찰하였다. 시간지향성이 청소년기까지 가변적이고 훈련 가능하다는 연구결과는 불완전한 가족구조와 빈곤과 같은 사회적 제약에 의해 한계지어 지는 낮은 수 준의 교육포부를 증가시킬 수 있는 교육적 수단으로 매개적 역할을 하는 시간지향성을 활용할 수 있 음을 의미한다. 사회적 제약은 낮은 부모학력 및 한부모가족 구조와 같은 가정환경과 저소득 가정의 아동들이 밀집한 학교와 같은... -
Cultivating a Common Faith: John Dewey on Religion and Education
Larry A. Hickman 한국종교교육학회 종교교육학연구 20 Pages
한국종교교육학회 종교교육학연구 2004, 제 18권 3 59-78 (20 pages)
John Dewey s lifelong attention to religious themes found expression in his 1934 book A Common Faith. Among the pragmatic themes he developed there are that: a) human experience left to develop without outside interference is capable of generating ideals and values, and b) beliefs that are true, including religious beliefs, are so only when they have been tested in the laboratory of experience. Rather than choose among the world s religions, Dewey emphasized the religious quality that... -
단기 유치도뇨관 제거 전 방광훈련효과에 대한 체계적 문헌고찰 및 메타분석
장정복, 윤미선, 김영미 한국근거기반간호학회 근거와 간호 13 Pages
한국근거기반간호학회 근거와 간호 2020, 제 8권 제 1호 3 18-30 (13 pages)
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단기 유치도뇨관 유지환자의 도뇨관 제거 전 방광 훈련 필요성에 대한 근거기반간호 사례
안예슬, 이현진, 박지영, 김정임, 박현주, 함정화, 한경화, 박정옥, 서은정 한국근거기반간호학회 근거와 간호 10 Pages
한국근거기반간호학회 근거와 간호 2019, 제 7권 제 1호 5 23-32 (10 pages)
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Home exercise program adherence strategies in vestibular rehabilitation
Shilpa B. Gaikwad, Tatri Mukherjee, Parita V. Shah, Oluwaseun I. Ambode, Eric G. Johnson, Noha S. Daher 물리치료재활과학회 Physical Therapy Rehabilitation Science 10 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2016, 제 5권 제 2호 1 53-62 (10 pages)
Objective: The aim of this systematic review was to investigate for effective strategies to improve home exercise program (HEP) adherence in vestibular rehabilitation (VR). Design: Systematic review. Methods: A systematic review was conducted to identify effective strategies used to improve HEP adherence of patients in VR. Six databases, Academic Search Premier, Cochrane Library, CINAHL, PUBMED, PsycINFO, and Web of Science were searched from their inception to December 31, 2015. The keywords... -
Wheelchair martial arts practitioners have similar bone strength, sitting balance and self-esteem to healthy individuals
Shirley S. M. Fong, Shamay S. M. Ng, Anthony O. T. Li, X. Guo 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2014, 제 3권 제 1호 5 27-32 (6 pages)
Objective: The aim of this study was to compare the radial bone strength, sitting balance ability and global self-esteem of wheelchair martial arts practitioners and healthy control participants. Design: Cross-sectional study. Methods: Nine wheelchair martial art practitioners with physical disabilities and 28 able-bodied healthy individuals participated in the study. The bone strength of the distal radius was assessed using the Sunlight Mini-Omni Ultrasound Bone Sonometer; sitting balance was... -
The effects of virtual reality-based physical therapy in stroke patients
Cha-ryong Kim, Won-Kyu Min 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2013, 제 2권 제 1호 2 7-11 (5 pages)
Objective: Final goal of nerve advancement therapy is to provide maximum ability to function independently in life to patients. This paper appraises and describes basic concepts of the virtual reality (VR) based exercise program to improve functional movement for neurologically impaired patients. Design: Review article. Methods: Stroke patients from the physical therapy department while wearing comfortable clothing receive therapy and also VR based motion therapy administered by the therapist in... -
Analysis of Operation and Development of Online Learning Systems for Software Education
Han Sun-Gwan 경인교육대학교 교육연구원 The Journal of Education 14 Pages
경인교육대학교 교육연구원 The Journal of Education 2019, Vol.2 No.1 1 1-14 (14 pages)
total of 45 learning courses were developed. The learning time in content was shortened to 10-20 minutes so that learners could learn easily. As a result of the operation of the system, users have been steadily increasing since 2016. The average monthly number of users in 2016 was 3,056, and 3,463 in 2017, 4,365 monthly averages in 2018, which is an annual increase. As a result of detailed analysis, users increased in June and November. This shows that elementary and junior high school students... -
Influence of bronchoalveolar lavage on thoracic radiography in the horse
Ann K. Barton, Thorben Schulze, Marcus G. Doherr, Heidrun Gehlen 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 4호 13 563-569 (7 pages)
radiographs of each horse were scored by two blinded observers, who were also asked to identify the image as obtained before or after a BAL procedure. In severe equine asthma, the chance (adjusted odds) of misinterpretation of the correct imaging time was approximately 5 times higher than in controls (odds ratio [OR] = 5.373, p = 0.028). The chance of misinterpretation was approximately 4 times lower in caudodorsal images than in caudoventral projections (OR = 0.241, p = 0.004). Identification... -
Transient forebrain ischemia induces impairment in cognitive performance prior to extensive neuronal cell death in Mongolian gerbil (Meriones unguiculatus)
Tomohiro Kondo, Suguru Yoshida, Hiroaki Nagai, Ai Takeshita, Masaki Mino, Hiroshi Morioka, Takayuki Nakajima, Ken Takeshi Kusakabe, Tosh 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 4호 5 505-511 (7 pages)
In Mongolian gerbils, bilateral common carotid artery occlusion (BCCAO) for several minutes induces ischemia, due to an incomplete circle of Willis, resulting in delayed neuronal cell death in the Cornet d’Ammon 1 (CA1) region of the hippocampus. Neuronal cell death in the hippocampus and changes in behavior were examined after BCCAO was performed for 5 min in the gerbils. One day after BCCAO, the pyramidal neurons of the CA1 region of the hippocampus showed degenerative changes (clumped... -
Cytological endometritis in dairy cows: diagnostic threshold, risk factors, and impact on reproductive performance
Soo Chan Lee, Jae Kwan Jeong, In Soo Choi, Hyun Gu Kang, Young Hun Jung, Soo Bong Park, Ill Hwa Kim 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 2호 17 301-308 (8 pages)
We determined the threshold proportion of polymorphonuclear leukocytes (PMNs) for a diagnosis of cytological endometritis (CEM), the risk factors for this condition, and its impact on reproductive performance in dairy cows. Uterine cytology was performed on 407 Holstein cows 4 weeks postpartum to determine the proportions of endometrial cells and PMNs. A receiver operator characteristics curve was used to determine the threshold above which the PMN proportion affected the likelihood of cows... -
Comparative kinematic gait analysis in young and old Beagle dogs
Malin Lorke, Maray Willen, Karin Lucas, Martin Beyerbach, Patrick Wefstaedt, Hugo Murua Escobar, Ingo Nolte 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 4호 19 521-530 (10 pages)
Age-related involution in dogs involves loss of muscle mass and changes in connective tissue and articular cartilage. The aim of this study was to examine whether an age-related influence on joint mobility can be detected in the absence of disease. Five young (mean age 2.0 years) and five old (mean age 10.4 years) healthy and sound Beagle dogs underwent computer-assisted gait analysis during locomotion on a treadmill. Shoulder, elbow, carpal, hip, stifle, and tarsal joint angles including joint... -
Physical-chemical and biological characterization of different preparations of equine chorionic gonadotropin
Rafael Herrera Alvarez, Fabio Luis Nogueira Natal, Maria Teresa Carvalho Pinto Ribela, Beatriz Elane de Almeida, Jo?o Ezequiel d 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 4호 4 459-465 (7 pages)
Ovarian stimulation with commercial preparations of equine chorionic gonadotropin (eCG) produces extremely variable responses in domestic animals, ranging from excessive stimulation to practically no stimulation, when applied on the basis of their declared unitage. This study was conducted to analyze four commercial preparations from different manufacturers via reversed-phase HPLC (RP-HPLC) in comparison with a reference preparation and an official International Standard from the World Health... -
Concentrations of strontium, barium, cadmium, copper, zinc, manganese, chromium, antimony, selenium, and lead in the liver and kidneys of dogs according to age, gender, and the occurrence of chronic kidney disease
Nadine Paßlack, Barbara Mainzer, Monika Lahrssen-Wiederholt, Helmut Schafft, Richard Palavinskas, Angele Breithaupt, Ju 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 8 57-66 (10 pages)
This study was conducted to measure the concentrations of strontium (Sr), barium (Ba), cadmium (Cd), copper (Cu), zinc (Zn), manganese (Mn), chromium (Cr), antimony (Sb), selenium (Se), and lead (Pb) in canine liver, renal cortex, and renal medulla, and the association of these concentrations with age, gender, and occurrence of chronic kidney disease (CKD). Tissues from 50 dogs were analyzed using inductively coupled plasma mass spectrometry. Cu, Zn, and Mn levels were... -
Black rice anthocyanidins prevent retinal photochemical damage via involvement of the AP-1/NF-κB/Caspase-1 pathway in Sprague-Dawley Rats
Hao Jia, Wei Chen, Xiaoping Yu, Xiuhua Wu, Shuai Li, Hong Liu, Jiru Liao, Weihua Liu, Mantian Mi, Longjian Liu, Daomei Cheng 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 3호 15 345-353 (9 pages)
The effects of black rice anthocyanidins (BRACs) on retinal damage induced by photochemical stress are not well known. In the present study, Sprague-Dawley rats were fed AIN-93M for 1 week, after which 80 rats were randomly divided into two groups and treated with (n = 40) or without BRACs (n = 40) for 15 days, respectively. After treatment, both groups were exposed to fluorescent light (3,000 ± 200 lux; 25°C), and the protective effect of dietary BRACs were evaluated afterwards. Our results... -
Quantitation of meloxicam in the plasma of koalas (Phascolarctos cinereus) by improved high performance liquid chromatography
Benjamin Kimble, Kong Ming Li, Merran Govendir* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 1호 2 7-14 (8 pages)
solid phase extraction cartridges. MEL was separated from an endogenous interference using an isocratic mobile phase [acetonitrile and 50 mM potassium phosphate buffer (pH 2.15), 45：55 (v：v)] on a Nova-Pak C18 4-mm (300 × 3.9 mm) column. Retention times for MEL and piroxicam were 8.03 and 5.56 min, respectively. Peak area ratios of MEL to the internal standard (IS) were used for regression analysis of the calibration curve, which was linear from 10 to 1,000 ng/mL (r ＞ 0.9998). Average... -
A modified method for inducing periodontitis in dogs using a silk-wire twisted ligature
Se Eun Kim, Eui Ri Lee, Yesran Lee, Manbok Jeong, Young Woo Park, Jae Sang Ahn, Jeong Taek Ahn, Kangmoon Seo* 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 2호 11 193-197 (5 pages)
This study was designed to assess the effectiveness of a modified silk ligature twisted with wire for inducing advanced periodontitis. Periodontitis was induced in five premolars and one molar of 20 healthy dogs over a 60-day period. The dogs were divided into four groups according to the ligature- inducing materials used: soft moistened food only, wire ligature (WL), silk ligature (SL) and twisted ligature with silk and wire (SWL). Periodontal indices were recorded, and dental radiographs were... -
Fast neutron irradiation deteriorates hippocampus-related memory ability in adult mice
Miyoung Yang, Hwanseong Kim, Juhwan Kim, Sung-Ho Kim, Jong-Choon Kim, Chun-Sik Bae, Joong-Sun Kim, Taekyun Shin, Changjong Moon* 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 1호 1 1-6 (6 pages)
Object recognition memory and contextual fear conditioning task performance in adult C57BL/6 mice exposed to cranial fast neutron irradiation (0.8 Gy) were examined to evaluate hippocampus-related behavioral dysfunction following acute exposure to relatively low doses of fast neutrons. In addition, hippocampal neurogenesis changes in adult murine brain after cranial irradiation were analyzed using the neurogenesis immunohistochemical markers Ki-67 and doublecortin (DCX). In the object... -
Autoantibodies against thyroid hormones and their influence on thyroxine determination with chemiluminescence immunoassay in dogs
Marion Piechotta*, Michael Arndt, Hans-Otto Hoppen 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 3호 3 191-196 (6 pages)
Autoantibodies against thyroxin (T4AA) and triiodothyronine (T3AA) are present in dogs with autoimmune thyroiditis and have been reported to interfere with immunoassays. The objectives of this study were to determine the frequency of autoantibodies and to determine whether interference occurs by T4AA, using a non-immunological method (high performance liquid chromatography, HPLC) for thyroxin (T4) measurement. Based on clinical symptoms, T4 and thyroid stimulating hormone (TSH) concentration,... -
Ethanol extract of Angelica gigas inhibits croton oil-induced inflammation by suppressing the cyclooxygenase-prostaglandin pathway
Sunhee Shin, Seong Soo Joo, Dongsun Park, Jeong Hee Jeon, Tae Kyun Kim, Jeong Seon Kim, Sung Kyeong Park, Bang Yeon Hwang, *, Yun 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 1호 7 43-50 (8 pages)
The anti-inflammatory effects of an ethanol extract of Angelica gigas (EAG) were investigated in vitro and in vivo using croton oil-induced inflammation models. Croton oil (20 μg/mL) up-regulated mRNA expression of cyclooxygenase (COX)-I and COX-II in the macrophage cell line, RAW 264.7, resulting in the release of high concentrations of prostaglandin E2 (PGE2). EAG (1∼10 μg/mL) markedly suppressed croton oil-induced COX-II mRNA expression and PGE2 production. Application of croton oil (5% in... -
Modification of pharmacokinetics of norfloxacin following oral administration of curcumin in rabbits
B. H. Pavithra, N. Prakash*, K. Jayakumar 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2009, 제 10권 제 4호 3 293-297 (5 pages)
by a one- compartment open model. The pharmacokinetic data revealed that curcumin-treated animals had significantly (p ≤ 0.05) higher area under the plasma concentration- time curve and area under the first moment of plasma drug concentration-time curve. Prior treatment of curcumin significantly (p ≤ 0.05) increased elimination half-life and volume of distribution of norfloxacin. Further treatment with curcumin reduced loading and maintenance doses by 26% and 24% respectively. -
Implantation of canine umbilical cord blood-derived mesenchymal stem cells mixed with beta-tricalcium phosphate enhances osteogenesis in bone defect model dogs
Byung-Jun Jang, Ye-Eun Byeon, Ji-Hey Lim, Hak-Hyun Ryu, Wan Hee Kim, Yoshihisa Koyama, Masanori Kikuchi, Kyung-Sun Kang*, Oh-Kye 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 4호 8 387-394 (8 pages)
This study was performed to evaluate the osteogenic effect of allogenic canine umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs) mixed with beta-tricalcium phosphate (b-TCP) in orthotopic implantation. Seven hundred milligrams of b-TCP mixed with 1 × 10 UCB-MSCs diluted with 0.5 ml of saline (group CM) and mixed with the same volume of saline as control (group C) were implanted into a 1.5 cm diaphyseal defect and wrapped with PLGC membrane in the radius of Beagle dogs.... -
Hepatic encephalomyelopathy in a calf with congenital portosystemic shunt (CPSS)
Valeria Cafe Marcal, *, Anna Oevermann, Tim Bley, Patrizia Pfister4, Julien Miclard1 대한수의학회 Journal of Veterinary Science 3 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 1호 16 113-115 (3 pages)
A 4-month-old female Holstein Friesian calf was referred to the Veterinary Teaching Hospital, University of Berne, Switzerland for evaluation of ataxia, weakness, apathy and stunted growth. Clinical examination revealed generalized ataxia, propioceptive deficits, decreased menace response and sensibility. Postmortem examination did not reveal macroscopic changes of major organs. Histologically, the brain and the spinal cord lesions were characterized by polymicrocavitation, preferentially... -
Tactics of Mycobacterium avium subsp. paratuberculosis for intracellular survival in mononuclear phagocytes
Seng-Ryong Woo, Charles J. Czuprynski* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 1호 1 1-8 (8 pages)
paratuberculosis survives for long time periods in mononuclear phagocytes, nor is it clear which factors trigger multiplication of these bacilli and result in the development of Johne's disease. Investigating the intracellular fate of M. paratuberculosis is challenging because of its very slow growth (more than two months to form visible colonies on media). Existing animal models also have limitations. Despite those obstacles, there has been progress in understanding the intracellular survival... -
Changes of biomarkers with oral exposure to benzo(a)pyrene, phenanthrene and pyrene in rats
Hwan Goo Kang, Sang Hee Jeong*, Myung Haing Cho, Joon Hyoung Cho 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 4호 8 361-368 (8 pages)
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants present in air and food. Among PAHs, benzo(a)pyrene(BaP), phenanthrene (PH) and pyrene (PY) are considered to be important for their toxicity or abundance. To investigate the changes of biomarkers after PAH exposure, rats were treated with BaP (150 ■g/kg) alone or with PH (4,300 ■g/kg) and PY (2,700 ■g/kg) (BPP group) by oral gavage once per day for 30 days. 7-ethoxyresorufin-O-deethylase activity in liver... -
Pregnancy loss in dairy cows: the contributing factors, the effects on reproductive performance and the economic impact
Je-In Lee, Ill-Hwa Kim 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 3호 13 283-288 (6 pages)
This study investigated the effects of the herd, cow parity, the insemination protocol and season on the incidence of pregnancy loss (PL) in dairy herds. Furthermore, we determined the downstream effects of PL on reproductive performance and its economic impact. The overall incidence rate of PL was 6.9% in 1,001 pregnant cows and its incidence peaked (p < 0.01) during the second trimester of gestation. GLIMMIX analysis revealed that cow parity was the important risk factor for the PL. The odds... -
Bioavailability of the amino acid-attached prodrug as a new anti-HIV agent in rats
Kyung-Ae Chae, Hee-Jung Cho, Ji-Min Sung, Hee Lee, Dong-Cheol Seo, Jin-Suk Kim, Ho-Chul Shin 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 3호 10 263-267 (5 pages)
The oral pharmacokinetic parameters of VP-0502AL were calculated to be: maximum concentration time (tmax) 2.7 h; Cmax 0.2 ?g/ml; elimination half-life (t1/2): 0.8 h; and AUC 0.5 ?g · h/ml. Overall the findings indicate that VP-0502AL has a favorable pharmacokinetic profile as a prodrug with rapid transformation into the active metabolite, and that the attachment of the amino acid alanine to VP-0502 is an effective approach to improve its oral bioavailability. VP-0502AL is predicted to become a... -
Risk factors for delayed conception in Korean dairy herds
Ill-Hwa Kim, Hyun-Gu Kang 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2006, 제 7권 제 4호 13 381-385 (5 pages)
Delayed conception is defined as an interval of greater than 90 days postpartum before a cow becomes pregnant again. In this study, the risk factors for delayed conception in Korean dairy herds were determined by evaluating several reproductive factors in individual cows. The following data was recorded from 1,012 pregnancies in eight dairy herds (designated A-H) from July 2001 to June 2006: herd, cow parity, repeated animal (cows included 2, 3, or more times), calving season, calving condition... -
Advancing parity is associated with high milk production at the cost of body condition and increased periparturient disorders in dairy herds
Ji-Yeon Lee, Ill-Hwa Kim 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2006, 제 7권 제 2호 12 161-166 (6 pages)
The objectives of this study were to determine the effects of parity on milk production, body condition change, periparturient health, and culling in Korean dairy herds. The data utilized included; milk yield, body condition score, cow parity, calving condition, periparturient disorders, culling, and reproductive status, which were recorded from 1290 calvings in eight dairy herds. The mean milk yield in cows over 305 days increased with increasing parity (p < 0.01). Cows with parities of 3, 4,...
