Effects of Protaetia brevitarsis seulensis powder dietary inclusion level on antioxidant activities of broiler breast meat during storage

Choi In‐Hag,Chung Tae‐Ho 한국곤충학회 2021 Entomological Research Vol.51 No.8

The present study aimed to evaluate the effects of Protaetia brevitarsis seulensis (PBS) powder dietary inclusion levels on the antioxidant activities of broiler breast meat during storage. A total of 270 Arbor Acres broiler chicks were randomly allocated to three treatments (3 replicates with 30 birds per pen), fed diets with inclusion of 0%, 0.5% or 1% PBS powder, in a completely randomized design. After slaughtering, samples were packed and stored at 4°C for later analysis of broiler breast meat. Antioxidant analysis included measurement of pH, thiobarbituric acid reactive substances (TBARS), and 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity. All samples were measured at storage days 0 and 7 as three replicates. For breast meat, changes were observed in pH, TBARS values, and DPPH radical scavenging at storage days 0 and 7 (p < 0.05), except for TBARS values at storage day 0. Overall, the addition of PBS powder resulted in lower TBARS values and higher DPPH radical scavenging in broiler breast meat during storage. Based on these results, it can be concluded that the addition of 0.5% and 1% PBS powder to broiler diets was effective at reducing lipid oxidation during storage, which could be related to the subsequent lower meat pH.

Antioxidant and cytoprotective effects of enzyme‐extracted constituents of Protaetia brevitarsis seulensis powder

Choi In‐Hag,Choi Sung‐Up,Son Jin‐Sung,Jang Woo‐Whan,Chung Tae‐Ho 한국곤충학회 2021 Entomological Research Vol.51 No.2

This study was aimed to compare the antioxidant and cytoprotective effects of hot‐water and enzyme‐extracted constituents of Protaetia brevitarsis seulensis powder. The products of enzymatic extraction had 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH)‐radical‐scavenging activity, cytotoxic effects, and provided cytoprotection against H2O2 and intracellular reactive oxygen species. Enzymatic extraction improved DPPH‐radical‐scavenging activity relative to hot‐water extraction (P < 0.05), with inhibition rates of 33% at 500 μg/mL and 35% at 1000 μg/mL. Cell viability ranged from 100 to 122%, and was higher for hot‐water than for enzymatic extraction (P > 0.05). Hot‐water extraction achieved greater cytoprotection against H2O2 than enzymatic extraction. However, enzymatic extraction achieved greater antioxidant and cytoprotective activity against reactive oxygen species than hot‐water extraction. These results provide evidence of the antioxidant and cytoprotective effects produced by enzymatic extraction of the active ingredients from Protaetia brevitarsis seulensis powder.

일 대학병원에 입원한 주요우울장애의 증상 특성

이진,김상훈,김학렬,박상학,황걸,장혁진 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.2

Objectives: The purpose of this study was to investigate the frequency and kinds of symptoms and the profile of depressive symptoms and somatic symptoms of admitted patients with major depressive disorder in a university hospital. Methods: The study was cross-sectional study in Chosun university hospital. A total of 299 patients who met the diagnostic criteria of major depressive disorder according to DSM-IV were participated in this study. Forty four item questionnaires were developed to check symptoms and the questionnaires checked from patient's medical record. Results: Common depressive symptoms were the following order: depressive mood (55.2%), initial insomnia (52.8%), anxious/tense (47.8%), tired/no energy (35.1%), suicidal ideation (28.8%). Common somatic symptoms were the following order: decreased appetite (33.1%), headache (22.1%). gastric discomfort (16.7%), palpitation (15.4%), chest discomfort (11.4%). Comparing depressive symptoms and somatic symptoms in terms of gender, anxious/tense, emotional/cry a lot, decreased appetite, gastric discomfort, palpitation, were more frequent in female patients (p<0.05), On the other hand, interpersonal sensitivity, pessimism were more frequent in male patients (p<0.05). Elderly depressed patients showed hypochondriasis symptom more frequently than younger patients (p<0.05). Conclusion: These results suggested that the depressive symptoms showed dissimilar in character according to the gender and age. Therefore proper diagnostic and therapeutic approaches will be needed for each patient's symptom characteristics.

남성 성기자해

김상훈,문남식,황걸,박상학,김학렬,김경환 朝鮮大學校 附設 醫學硏究所 2005 The Medical Journal of Chosun University Vol.30 No.2

Background and Objectives: Intentional self-mutilation of the genitals in male is exceedingly rare. As the authors experienced 3 cases of male genital self-mutilation while psychotic, we investigated with psychiatric points of view including general and psychiatric characteristics of genital self-mutilation in Korea. Materials and Methods: Total 21 cases of the genital injury were obtained from the index book of Journal of Korean Neuropsychiatric Association and the Electronic Library Search Engine. From these, excluding the 4 accident-caused cases of penile amputation, the authors investigated 17 cases in terms of general epidemiological characteristics, the type of mutilation, diagnostic classification, psychodynamics of their behavior. Results: Epidemiological data showed that the most of the genital self-mutilation cases are twenties (52.9%); most are single (64.7%). In terms of the mutilation types, complete transection of penis type were committed most frequently (72.1%). The formal diagnoses were mainly schizophrenia (82.3%) and schizoid personality disorder(11.8%). Psychodynamically, lots of cases could be explained as to punish failures in the male role (20.6%), related to religiosity (14.7%), and related to physical pain or somatic illness (14.7%). Conclusion: We are unable to say exactly what prompts a man to divest himself of his genitals. On the basis of 17 cases, we are willing to hazard several risk factors. For individuals psychotic at the time of act there seem to be at least three paradigmatic at-risk groups: (1) younger acutely psychotic men with related to cure or punish failures in the male role, (2) the men with personality disorders who act rageful feelings against themselves and/or close objects, and (3) sociocultural factors known to contribute to such an act include some complex religious belief regarding purification or resisting temptation. Psychological factors yet undetermined may be' equally important.

Precision Control of the Electron Longitudinal Bunch Shape Using an Emittance-Exchange Beam Line

Ha, G.,Cho, M. H.,Namkung, W.,Power, J. G.,Doran, D. S.,Wisniewski, E. E.,Conde, M.,Gai, W.,Liu, W.,Whiteford, C.,Gao, Q.,Kim, K.-J.,Zholents, A.,Sun, Y.-E,Jing, C.,Piot, P. American Physical Society 2017 Physical Review Letters Vol.118 No.10

Cascade 영역에서의 스퍼터링에 관한 연구

김학금 한국공업화학회 2003 응용화학 Vol.7 No.1

There are a number of situation where a solid is bombarded by ions. Sputtering in a fundamental processes in the fabrication of microelectronic components. For the purpose of estimating sputter yield values, there is a need for an analytical model whose yield expression is east to evaluate. To meet this need, our research is carried out the energy transfer in binary elastic collisions, the energy distribution of recoils, the projected range of projectile, the projected range of recoils and the surface binding energy We study the projectile atomic masses and surface binding energy effects in the sputtering of elemental materials, too.

엘레판틴 유대인 공동체의 종교적 성향 연구

차학순 안양대학교 신학연구소 1995 神學硏究 Vol.3 No.-

이온 충격에 의한 스퍼터링에 관한 연구

김학금 한국공업화학회 2002 응용화학 Vol.6 No.2

이온에 의한 에칭 속도에 대하여 정리하였으며, 여러 가지 스퍼터율을 나타내는 모텔 및 식에 대하여 고찰하였다. 아울러 여러 물리적인 데이터를 이용하여 단순충돌 모델과 Matsunami식을 적용하여 Ar이온에 의한 Al스퍼터율을 계산하였다. During the past century, there have been many manuscripts published reporting different aspect of sputtering. The purpose of this article is to review the theories of sputtering. Basic etching rate is defined and sputtering models commonly used in calculations of sputtering yield have been reviewed. Simplified collisional model and Mathsunami equation are also applied to sputtering yields of the aluminium targets bombarded by argon ions.

발 形態分析과 體能力間의 關係에 관한 比較硏究

崔鶴犧,鄭善太 진주산업대학교 1982 論文集 Vol.20 No.-

In order to enforce the test of the physical fitness by ages which is based on the classification of the foot by forms, I choosed 1096 male-students in J. high shool, and tried to analize to compare the normal foot to the physical test by forms. The results obtained in this study are following. 1. The number of the students of the foot by forms are following. The normal foot that students have is 869(79.28%), and the flat foot is 227(20.8%) 2. The record of the physical fitness test between the normal foot and the flat foot are following. The normal foot obtained more good results than the flat foot in 100 m sprit, in standing broad jumps, in ball throwing, in sit-up, and in pull-ups. 3. Upon investigation the record of the physical fitness test by ages between the normal foot and the flat, I found that 15 years old classes obtained more goods results than 16, 17years old classes in full-ups and in sit-ups.

흰쥐의 연령증가에 따른 일시적 최대운동 부하시 혈장 콜레스테롤, HDL, LDL 및 TG 농도의 변화

김학렬,조현철,이선장,김영란,최용어 龍仁大學校 體育科學硏究所 1993 體育科學硏究論叢 Vol.3 No.1

The purpose of this study estimated whether a life style and diet pattern or natural phenomenon induced to aging in changes of plasma lipid component. Also, It was estimated from the changes of plasma lipid component followed acute maximal swimming exercise in different aged rats. Three months, nine months and sixteen months male rats of a Sprague-Dawley were housed in individual cages, and they were separated into each two group. - 3 month (12) : Control (6) and Experimental (6) - 9 month (22) : Control (10) and Experimental (12) - 16 month(16) : Control (8) and Experimental (8) In the 3.9.16 month, half of control group was randomly sacrificed. The other half of experimental group was performed with swimming exercise until exhaustive state. Water tank of 50cm depth and 50cm diameter was used for this study. Rats were given a 5 min warm up with swimming exercise, this warm up was followed by taking 5 min rest period, then animal exercised until exhaustion. Plasma cholesterol, HDL, LDL and TG levels followed aning of 3,9 and 16 months was not shown a significant difference between control group. Also, Plasma cholesterol, HDL and LDL levels of experimental group was not displayed statistically significant difference between 3,9 and 16 month group, but there was a significant difference(p<.05) between control and experimental group of 16 month, and between experimental group of 3 month and 16 month(p<.05) in levels of triglycerides. Conclusively, This study suggested that changes of plasma lipid component induced by aging was not phenomenan due to increase of age, and conditions except for life style and diet patern, etc. was similar to a changes of lipid component induced as exercise.