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DIFFERENTIAL DIAGNOSIS BY JOINT CAVITY PUMPING WITH LOCAL ANESTHETIC FOR PAIN OF TEMPOROMANDIBULAR JOINT ARTHROSIS (악관절증의 동통에 대한 국소마취제의 관절강내 Pumping에 의한 감별법)

  • Chung, Hoon;Jung, Hak;Kino, Koji
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.14 no.1_2
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    • pp.146-153
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    • 1992
  • In the outpatient clinic, we have many patients who suffer from temporomandibular joint disorders. These vary from MPD syndrome to osteoarthrosis, and many cases have tender spots or areas on the temporomandibular joint region and/or masticatory muscles. Further, they frequently have masticatory muscle pain when opening the jaw. This paper presents the results of our research on the differential diagnosis for tendernesses and pain on opening the jaw in the temporomandibular joint region and the masticatory muscles by joint cavity pumping with local anesthestic. The areas of tenderness and jae-opening paw in 65 patient suffering from temporomandibular joint disorder were examined and recorded before and after anesthetizing the upper joint cavity with 2% lidocaine. Maximum interincisal distance was similarly recorded. The results were as follows : In the area surrounding the upper joint cavity including the lateral pterygoid muscle, the tenderness and jaw-opening pain vanished almost entirely after anesthesia. This was considered a direct infiltrative effect of the local anesthesia. After the anesthesia, 86% of the tendernesses on the sternocleidomastoid muscles, and 66% of those on the posterior belly of the diagstric muscles vanished, while the disappearance rates on the masseter, temporal, and medial pterygoid muscles were 50~60%. Apart from the temporomandibular region, pain on opening the jaw was found on the masseter, temporal, posterior belly of the digastric muscles, and medial pterygoid muscles before anesthesia. The disappearance rates after anesthesia were 90~100% except for the pain of the posterior belly of the digastric muscles, for which the rate was 66%. These results suggest that more than 88% of the tendernesses on the sternocleidomastoid muscle, more than 60% of the tendernesses and jaw-opening pains on the digastric muscle, and more than half of the tendernesses and almost all of the jaw-opening pains in the jaw-closing muscles are referred pains from the temporomandibular joint. The tendernesses that had no change after anesthesia were considered to be derived from spasms of the muscles proper. Generally, maximum interincisal distance increased after anesthesia. The average distance was 34mm before anesthesia, but increased to 41mm after anesthesia. In a few cases, however little or no change was found in those distances. In these cases, pathological changes were found in the joint cavities arthrographically or arthroscopically.

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Effects of Increasing Slaughter Weight on Production Efficiency and Carcass Quality of Finishing Gilts and Barrows

  • Jeong, Jin-Yeun;Park, Byung-Chul;Ha, Duck-Min;Park, Man-Jong;Joo, Seon-Tea;Lee, Chul-Young
    • Food Science of Animal Resources
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    • v.30 no.2
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    • pp.206-215
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    • 2010
  • A total of 582 gilts and barrows were analyzed to investigate the regressive relationships to slaughter weight (SW) of variables related to production efficiency and pork quality. Average initial weights and SW were 88.6 and 122.5 kg, respectively, for gilts and 88.7 and 121.4 kg, respectively, for barrows. Average daily gain and gain:feed ratio were not affected by SW. Backfat thickness, which was significantly greater (p<0.01) in barrows (23.3 mm) than in gilts (20.7 mm), increased with increasing SW (0.21 mm/kg; p<0.001). When the 4-notch carcass yield and quality grades were quantified according to an arbitrary 1 point-per-1 notch scale, the former, but not the latter, regressed on SW (-0.64/10 kg; p<0.01). The percent yield of the belly per total lean (overall mean=20.7%) increased with increasing SW (0.37%/10 kg; p<0.001), whereas in other cuts, the SW effect was negligible. The redness of the loin also increased with increasing SW (p<0.05), but other physicochemical characteristics were minimally influenced by SW. In sensory evaluation, effects of SW for fresh and cooked loin, ham, and belly were mostly considered insignificant in terms of quality, albeit statistically significant in several cases. However, positive regressions on SW (p<0.01) of the marbling and acceptability scores of fresh loin as well as the fat:lean ratio of fresh belly were noteworthy. Collectively, SW of approximately 125 kg was maximal for both sexes under the current carcass yield grading, in which 94 kg is the upper weight limit for grade A carcass. However, if the carcass weight limit of the grading was to be removed or broadened, the SW for gilts (but not that for barrows because of their excessive fat content at above 125-kg SW) could be increased to 135 kg or greater without compromising carcass quality.

Coping Behavior According to the Personality Type of Mothers of Children with Disabilities (장애아동 어머니의 성격유형에 따른 대처행동에 관한 연구)

  • Cho, Mi-Lim
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.8
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    • pp.403-409
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    • 2021
  • The aim of this study is to investigate the coping behavior according to the personality type of mothers of children with disabilities. The study included 102 mothers of children with disabilities and the study was conducted from june to september in 2020 based on the questionnaire about the personality type and coping behavior. Personality types were evaluated using Enneagram, and coping behavior was evaluated using the Korean Coping Behavior Scale for Parents of Children and Adolescents with Disabilities As a result of the study, the belly type was the most common personality type of mothers with disabilities. As for coping behavior, active problem-solving for children with disabilities showed the highest score. As a result of analyzing the coping behavior according to the personality type of mothers of children with disabilities, there were significant differences in the coping behavior, strengthening marital cooperation, and pursuing social-emotional support. As a result of post-verification, there were significant differences between heart type and belly type in coping behavior, strengthening marital cooperation, and pursuing social-emotional support, and heart type scored higher than belly type. When conducting interventions for families of disabled children, it will be possible to provide more effective services by predicting coping behaviors according to the personality type of mothers of disabled children and presenting individualized programs.

Carcass trait, meat yield and quality characteristics of recently-synthesized Woori Heukdon and commercial LYD pigs under identical rearing condition

  • Van-Ba Hoa;Dong-Heon Song;Ye-Jin Min;Kuk-Hwan Seol;Sun-Moon Kang;Hyun-Wook Kim;Sung-Sil Moon;Soo-Hyun Cho
    • Animal Bioscience
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    • v.36 no.6
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    • pp.943-952
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    • 2023
  • Objective: For decades, LYD ([Landrace×Yorkshire] ♀×Duroc ♂) pigs are the most commonly-used commercial breed for meat production in Korea. Recently, due to the increasing demand for premium pork, the National Institute of Animal Science (Korea) has synthesized a novel pig breed named Woori Heukdon (WHD). This study aimed at comparing the carcass traits, meat yield and quality characteristics between the LYD and WHD pigs under identical rearing condition. Methods: The WHD and LYD pigs (n = 15 each) were reared under identical conditions and fed the same commercial diet until reaching recommended market weight (100 to 120 kg). After slaughter, the carcasses were evaluated for traits and meat yield, and the meat quality was assessed on shoulder butt and belly cuts. Results: Although no significant differences (p>0.05) occurred in slaughter weight between two pig types, WHD had a lower meat yield (by about 6 kg corresponding to approximately 7%) compared to the LYD pigs (p<0.05). The WHD had a higher fat content (by 4.26% and 13.52% in the shoulder butt and belly, respectively) compared to those of LYD pigs (p<0.05). The WHD meat showed a lower cooking loss and higher a* (redness) value (p<0.05). The WHD belly had a significantly (p<0.05) higher oleic acid content and concentrations of nonanal, octanal and decanal associated with fatty odor while, the LYD meat had a higher number of pyrazines associated with roasty odor. Regarding sensory quality, higher flavor, juiciness, and acceptability higher scores were given for the WHD meat than for the LYD meat (p<0.05). Conclusion: Under identical rearing conditions the WHD exhibited a better meat quality and sensory properties. However, the use of this diet resulted in a high fat level that may be associated with high trimming loss for the WHD.

Development of War-robot using Real-Time Sensing and 4-bar linkage (Real-Time Sensing 및 4-bar linkage를 이용한 격투기로봇 개발)

  • 최은재;박세환;임상헌;정진만;정원지
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2001.04a
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    • pp.873-876
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    • 2001
  • Micro-robots using microprocessor are mainly classified as line-tracer, micro-mouse, and war-robot. This paper presents the development of the war-robot mechanism with vehicle-style using RC-servo motors and actuators using 4-bar linkage and infrared sensors. Especially the algorithm of conquering other war-robots is proposed based on the skill of belly-throw of Korean wrestling.

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The Influence of the Reference Electrode on Compound Muscle Action Potential Onset Latency and Amplitude (복합근육활동전위의 시작잠복기와 진폭에 대한 기준전극의 영향)

  • Lee, Sang-Moo;Choi, Heui-Chul;Son, Jong-Hee
    • Annals of Clinical Neurophysiology
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    • v.12 no.1
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    • pp.11-15
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    • 2010
  • Background: In belly-tendon (bipolar) montage, reference (R2) electrode placed on muscle's tendon has traditionally been considered to be electrically inactive. However, recent studies have revealed that R2 electrode is not simply referential, but actively contributes to compound muscle action potential (CMAP) waveform morphology. These findings suggest that CMAP onset latency and amplitude may also be influenced by the position of R2 electrode. This study was performed in order to evaluate the effect of R2 electrode position on CMAP onset latency and amplitude. Methods: We performed motor nerve conduction studies of median, ulnar, tibial and peroneal nerves on bilateral limbs of 20 normal subjects. We used traditional bipolar and monopolar montage and compared their CMAP onset latencies and amplitudes. In bipolar montage, recording (R1) electrode was placed on mid-belly of muscle with R2 electrode on the tendon of the muscle. In monopolar montage, R1 electrode was placed on the same site of bipolar montage, while R2 electrode was placed on the contralateral limb. Results: The mean CMAP onset latencies of median and peroneal nerves in bipolar montage were significantly different (p<0.05) with those in monopolar montage. And those of ulnar and tibial nerves were not significantly different (p>0.05). The mean CMAP amplitudes of all the tested nerves except ulnar nerve were significantly different (p<0.05). Conclusions: This study shows that change in R2 electrode position can affect the CMAP onset latency and amplitude, and these differences seem to be related to the generation of far field potential by CMAP.

First Record of the Oilfish, Ruvettus pretiosus (Perciformes: Gempylidae) from Korea (한국산 갈치꼬치과 어류 1미기록종, Ruvettus pretiosus)

  • Kim, Byeong Yeob;Song, Choon Bok
    • Korean Journal of Ichthyology
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    • v.29 no.3
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    • pp.224-228
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    • 2017
  • Two specimens of Ruvettus pretiosus (227.0 and 238.3 mm in standard length), belonging to the family Gempylidae, was firstly collected by using a gill net from the eastern coastal waters of Jejudo Island, Korea in November 2013. This species is characterized by having the following morphological traits: XV, 17~19+2 dorsal fin rays; II, 15~16+2 anal fin rays; belly keeled between pelvic fin and anus; body covered with cycloid scales, interspaced with rows of sharp bony tubercles. R. pretiosus can be easily distinguished from three Korean Snake mackerels (Thyrsitoides marleyi, Rexea prometheoides and Gempylus serpens) by having belly keeled between pelvic fin and anus, and cycloid scales covered the body and interspaced with rows of sharp bony tubercles. Based on morphological and molecular approaches, the specimens were identified as R. pretiosus. We propose new Korean names, "Gi-reum-chi-sok" and "Gi-reum-chi" for the genus and species, respectively.

Variability of Quality Related Characters in the Recombinant Inbred Lines from Milyang 23 and Gihobyeo (밀양23호와 기호벼 교잡 재조합자식계통(RILs)의 품질관련 특성 변이)

  • Kang, Hyeon-Jung;Kim, Young-Doo;Kim, Hyun-Soon;Lee, Young-Tae;Eun, Moo-Young
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.51 no.spc1
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    • pp.58-66
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    • 2006
  • The rice quality related traits including physico-chemical traits were evaluated with one hundred sixty-four MG RILs derived from the cross between Milyang 23, Indica/Japonica hybrid type, and Gihobyeo, Japonica type. The variation distribution of all traits examined approximately fit normal distribution and transgressive segregants over parents were observed for all traits. The occurrence of such transgression could be associated with the interactions of complementary QTL alleles from two parents. However in this study, it could not be concluded that our results of segregation were due to either complementary gene effects or overdominance of a major gene. These factors should be verified by further studies. Correlations between traits were evaluated by regressing phenotypic values of one trait on those of another traits. There are highly significant correlation between grain thickness with grain width, white core and white belly. But between white belly and alkali digestion value showed highly negative significant correlation. Contents of protein showed highly negative correlation with amylose and Mg/K ratio but showed highly correlation with K and Fat contents. Hardness of cooked rice showed highly correlation with adhesiveness, elasticity, gumminess, chewiness.

Feasibility of Increasing the Slaughter Weight of Finishing Pigs

  • Park, Byung-Chul;Lee, C.-Young
    • Journal of Animal Science and Technology
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    • v.53 no.3
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    • pp.211-222
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    • 2011
  • The present review was aimed to assess the feasibility of increasing the slaughter weight (SW) of finishing pigs. Growth performance, including ADG, ADFI and gain:feed, does not change significantly with increasing SW between 110 and $135{\pm}5kg$ in lean-genotype pigs, whereas in non-lean pigs, ADG and gain:feed decrease with increasing SW within the similar range of BW. Backfat thickness (BFT) and marbling of the carcass, which are greater in barrows than in gilts, increase with the increase of SW. The SW could be increased by using a low-energy diet and thereby reducing the rate of fat deposition per weight gain. The yield of the belly increases with the increase of SW, which may be economically significant in Korea. However, yields of some other primal cuts do not change so much as to affect the carcass value. The redness and fat content of the muscle increase slightly with the increase of SW whereas moisture content is minimally influenced by SW. Muscular protein content rarely changes, but sometimes increases slightly, with increasing SW. Other physicochemical characteristics, including lightness, pH, drip loss, and cooking loss of the muscle, are barely influenced by SW. Marbling of fresh loin and ham increases with increasing SW. Sensory characteristics of fresh loin, ham, and belly, including color, aroma, off-flavor, drip, and acceptability, are not influenced significantly by SW. The eating quality of cooked pork also has almost no relation to SW. In conclusion, it is thought that the current SW for moderately lean barrows and gilts can be raised up to 125 and 135 kg, respectively, with BFT at these weights predicted to be approximately 24 mm near the last rib, without compromising the meat quality.

Studies on the Analysis of DOA in PVC Wrap Film and its Migration into Foodstuffs (염화비닐 랩 필름의 DOA 분석 및 식품에의 이행에 관한 연구)

  • Lee, Keun-Taik;Gyoung, Young-Soo;Park, Tae-Kyu
    • Korean Journal of Food Science and Technology
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    • v.22 no.2
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    • pp.145-149
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    • 1990
  • Extraction and analysis conditions of di-(2-ethylhexyl) adipate (DOA) and its migration contents into foods wrapped with plasticized polyvinyl chloride (PVC) film during storage and cooking with microwave were examined using gas chromatography. Experiments on the extraction solvent and method showed that the method of reflux using carbon tetrachloride for longer than one hour allowed the highest extraction of DOA. Analysis of four PVC wrap films from different factories in domestic market showed the DOA contents of 18.9% for home-use and 24.6% for retail-use on the average. The highest migration during storage was observed in pork belly, which were 21% and 26% after one and three days respectively. During microwave cooking; smaller than 5.5% of DOA were migrated into foods when the film was not contacted with foods, whereas about 49% migration was observed in pork belly contacted with film directly.

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