• 제목/요약/키워드: PM32

검색결과 3,771건 처리시간 0.034초

동결 surimi의 품질과 어묵 젤리 강도의 관계 (Relationship between Quality of Frozen Surimi and Jelly Strength of Kamaboko)

  • 김육용;조영제
    • 한국수산과학회지
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    • 제25권2호
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    • pp.73-78
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    • 1992
  • 현재, 동결 surimi의 품질 각정의 기준으로 사용되고 있는 pH, 수분함량, 백도, 협잡물 및 젤리 강도를 연제품의 원료 단계인 surimi의 품질 판정지표로 사용하기에는 과학성이 결여되어 있을 뿐만 아니라 부적당한 것으로 생각된다. 따라서 연제품의 생명인 결착력에 직접적인 영향을 미치는 동결 surimi 단백질의 양부의 정도를 정확하게 판정할 수 있는 과학적인 지푤글 모색하기 위하여, 등급별로 분류되어 있는 동결 surimi를 시료로 하여 단백질의 변성 정도를 나타내는 $Ca^{2+}-,\;Mg^{2+}-$ EDTA-APTase 활성, 용해도 및 점도 그리고 신선도의 지표로 사용되고 있는 K값과 현재 동결 surimi의 등급별 분류지표로서 사용되고 있는 젤리 강도를 비교 검토하여 다음과 같은 결과를 얻었다. $Ca^|{2+}-$ATPase 생활과 동결 surimi의 젤리 강도는 깊은 상관 계수를 나타내었으며, 상관 계수(r)는 0.9584였다. 각등급의 생활값은 SA grade $1.184\pm0.12$, FA grade $0.956\pm0.14$, A grade $0.766\pm0.07$, RA grade $0.453\pm0.07$ 및 B grade $0.227\pm0.08({\mu}moles\;Pi/min/mg)$이었다. $Mg^{2+}-$ 및 EDTA-ATPase 활성과 젤리 강도와의 상관 관계는 상관계수(r)가 각각 0.8532, 0.7624로 $Ca^{2+}-$ATPase 생활과 젤리 강도와의 상관 계수에 비하여 낮은 상관 관계를 나타내었다. 용해도는 동결 surimi 각등급간의 젤리 강도와 밀접한 상관 관계를 나타내었으며 상관 계수(r)는 0.9849였다. SA grade에 $93.19\pm5\%$로 가장 높았고 FA grade $84.62\pm4\%,\;A\;grade\;70.63\pm5\%,\;RA\;grade\;41.21\pm4\%$이었고 B grade $32.82\pm4\%$로 각 등급별 품질의 차이를 잘 나타내었다. K-value는 상관 계수(r)가 0.9053으로 상관성을 나타내었으며, SA grade $15.67\pm1.4\%,\;FA\;grade\;14.94\pm3\%,\;A\;grade\;28.00\pm55\%,\;RA\;grade\;32.16\pm3\%,\;B\;grade\;48.78\pm5\%$로 등급이 낮을수록 K-value는 높은 값을 나타내었다. 이상의 결과에서, 현재까지의 동결 surimi의 등급별 분류 index로 사용되고 있는 jelly strength, 수분 함량, pH, 백도 및 협잡물에 대신할 원료 surimi 자체의 양부를 결정할 과학적인 지표로서 단백질 변성 정도를 나태는 $Ca^{2+}-$ATPase 활성 및 용해도가 사용할 것으로 생각된다.

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녹내장 환자에서 성상신경절 차단에 의한 안압의 변화 (The Changes of Intraocular Pressure by Stellate Ganglion Block in Glaucoma Patients)

  • 노선주;천임순;민병우;고준석;김현철;김광수
    • The Korean Journal of Pain
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    • 제4권2호
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    • pp.133-136
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    • 1991
  • Stellate ganglion block was performed in 15 patients with intractable glaucoma by injection of 8 ml of 1y lidocaine. The followings are the changes of intraocular pressure(mmHg): Pre -block $32.26{\pm}4.44$ 10 minutes after block $36.80{\pm}4.60$ 20 minutes after block $32.61{\pm}4.41$ 30 minutes after block $28.87{\pm}4.30$ 60 minutes after block $24.73{\pm}4.37$ 120 minutes after block $26.87{\pm}3.18$ 180 minutes after block $31.40{\pm}3.76$ The pressure rose up to 10 minutes post block and significant pressure descent was noticed from 30 minutes post-block. Maximum descent was seen by 60 minutes post-block and pre-block pressure was restored by 180 minutes post-block. For the purpose of cheeking the treatment effect, similar blocks were performed in 15 patients, one time daily for 5~8 days 3 times every othor day.

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편측하퇴의지의 절단 길이에 따른 보행 특성 비교 (Comparisons of the gait characteristics depended on amputation length of the Unilateral Trans-Tibial Prostheses)

  • 유재응;정석
    • The Journal of Korean Physical Therapy
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    • 제15권3호
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    • pp.166-172
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    • 2003
  • The aim of this study is to present the basic reference data of age and specific gait parameters for comparisons of the gait characteristics depended on amputation length of the Unilateral Trans-Tibial Prostheses. The basic gait parameters were extracted from 10 Adult, and 20 below knee(B/K) patients, 50 to 60 years of age using VICON 512 Motion Analyzer. The results were as follows; 1. The mean Cadence of the above knee(A/K) patients and below knee(B/K) patients were $87.77{\pm}8.64$ steps/min, to $99.84{\pm}11.14$ steps/min.(p<0.05) 2. The mean Walking Speed of the above knee(A/K) patients and below knee(B/K) patients were $0.84{\pm}0.15$ m/s, to $0.96{\pm}0.25$ m/s.(p>0.05) 3. The mean Stride Length of the above knee(A/K) patients and below knee(B/K) patients were $1.14{\pm}0.14\;m$, to $1.14{\pm}0.22m$.(p>0.05) 4. The mean maximal angles of joint on the hip flexion motion for different above knee(A/K) patients and below knee(B/K) patients were $34.75{\pm}10.18_{\circ}$, to $32.32{\pm}6.34_{\circ}$.(p>0.05) 5. The mean maximal angles of joint on the knee flexion motion for different above knee(A/K) patients and below knee(B/K) patients were $66.97{\pm}15.08_{\circ}$, to $52.65{\pm}9.21_{\circ}$. (p<0.05) 6. The mean maximal angles of joint on the ankle dorsi-flexion motion for different above knee(A/K) patients and below knee(B/K) patients were $14.41{\pm}4.82_{\circ}$, to $10.04{\pm}3.49_{\circ}$.(p>0.05) 7. The mean maximal angles of joint on the ankle plantar-flexion motion for different above knee(A/K) patients and below knee(B/K) patients were $5.77{\pm}3.17_{\circ}$, to $2.75{\pm}4.49_{\circ}$.(p>0.05)

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편측대퇴의지와 편측하퇴의지의 보행특성 비교 (Comparisons of the gait characteristics depended on Unilateral Trans-Femoral or Trans-Tibial Prostheses)

  • 안창식;정석
    • The Journal of Korean Physical Therapy
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    • 제16권2호
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    • pp.108-115
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    • 2004
  • The aim of this study is to present the basic reference data of age and specipic gait parameters for comparisons of the gait characteristics depended on Unilateral Trans-Femoral or Trans-Tibial Prostheses. The basic gait parameters were extracted from 10 Adult, 10 above knee(A/K) patients and 10 below knee(B/K) patients, 50 to 60 years of age using VICON 512 Motion Analyzer. The results were as follows; 1) The mean Cadence of the above knee(A/K) patients and below knee(B/K) patients were $87.77{\pm}8.64$ steps/min, to $99.84{\pm}11.14$ steps/min.(p<0.05) 2) The mean Walking Speed of the above knee(A/K) patients and below knee(B/K) patients were $0.84{\pm}0.15$ m/s, to $0.96{\pm}0.25$ m/s.(p>0.05) 3) The mean Stride Length of the above knee(A/K) patients and below knee(B/K) patients were $1.14{\pm}0.14$ m, to $1.14{\pm}0.22$m.(p>0.05) 4) The mean maximal angles of joint on the hip flexion motion for different above knee(A/K) patients and below knee(B/K) patients were $34.75{\pm}10.18_{\circ}$, to $32.32{\pm}6.34_{\circ}$ .(p>0.05) 5) The mean maximal angles of joint on the knee flexion motion for different above knee(A/K) patients and below knee(B/K) patients were $66.97{\pm}15.08_{\circ}$, to $52.65{\pm}9.21_{\circ}$ .(p<0.05) 6) The mean maximal angles of joint on the ankle dorsiflexion motion for different above knee(A/K) patients and below knee(B/K) patients were $14.41{\pm}4.82_{\circ}$, to $10.04{\pm}3.49_{\circ}$ .(p>0.05) 7) The mean maximal angles of joint on the ankle plantarflexion motion for different above knee(A/K) patients and below knee(B/K) patients were $5.77{\pm}3.17_{\circ}$, to $2.75{\pm}4.49_{\circ}$ .(p>0.05)

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강원도 춘천과 영월에서 측정한 미세먼지 농도 특성 및 고농도 원인 분석 (Characteristics of Fine Particles Measured in Two Different Functional Areas and Identification of Factors Enhancing Their Concentrations)

  • 조성환;김현웅;한영지;김우진
    • 한국대기환경학회지
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    • 제32권1호
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    • pp.100-113
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    • 2016
  • In this study, the characteristics of $PM_{2.5}$ and $PM_{2.5-10}$ concentrations were identified in two different functional areas including Chuncheon and Youngwol, Korea. Even though the anthropogenic emission rates of $PM_{2.5}$ and $PM_{10}$ are approximately four times higher in Youngwol than in Chuncheon their atmospheric concentrations were statistically higher in Chuncheon. In Chuncheon, both $PM_{2.5}$ concentrations and the ratio of $PM_{2.5}/PM_{10}$ increased as relative humidity (RH) increased possibly because the inorganic and/or organic secondary aerosols were actively formed at high RH. This result was also supported by that $PM_{2.5}$ concentration was enhanced under the fog and mist conditions in Chuncheon. On the other hand, both $PM_{2.5}$ and $PM_{2.5-10}$ concentrations clearly increased with the southerly winds blown from the cement production facility in Youngwol. In addition, high $PM_{2.5-10}$ concentrations were observed with high wind speed, low relative humidity, and high $NO_2$ concentrations in Youngwol, suggesting that $PM_{2.5-10}$ was generated through the physical process including crushing and packing procedures followed by resuspension from cement and lime factory.

국내 개에서 발생한 망막질환 65례 (Prevalence of Canine Retinal Diseases in Korea: 65 cases)

  • 정만복;박신애;김원태;김세은;체제민;이나영;서강문
    • 한국임상수의학회지
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    • 제24권2호
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    • pp.154-159
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    • 2007
  • The objective of this retrospective study was to investigate the prevalence of retinal diseases in dogs presented to the Veterinary Medical Teaching Hospital, Seoul National University from April 2004 to December 2005. Sixty-five dogs (120 eyes) with retinal diseases involving blindness were included in this study. Age, breed, and gender data for all breeds were collected from medical records documenting vision loss. Generalized progressive retinal atrophy (gPRA) was the most common manifestation. Other prevalent findings included sudden acquired retinal degeneration (SARD) and retinal detachment (RD). Bilateral gPRA was found in 32 dogs with a female-to-male ratio of 1 : 1. The mean $age{\pm}SD$ of all dogs in this group was $4.66{\pm}2.30$ years with a range of 3 to 12 years. Breeds with highest prevalence of gPRA were Miniature Schnauzer (24/32, $mean{\pm}SD$ age: $3.79{\pm}0.78$ yr) and Poodle (2/32, $6.50{\pm}0.71$ yr). Twelve dogs (24 eyes) were diagnosed with SARD bilateraly, ranging from 3 to 13 years of age ($mean{\pm}SD:\;6.91{\pm}2.61$ yr). There were no abnormalities in fundus of 11 dogs at presentation. Electroretinography (ERG) without anesthesia was performed in 7 dogs, and all response was totally extinguished. Retinal detachment was identified in 21 dogs (32 eyes): 11 bilateral and 10 unilateral (7 right eye, 3 left eye). The most common breed was Shih Tzu (15/21, $mean{\pm}SD$ age: $4.39{\pm}3.24$ yr). Four other breeds comprised the remaining 6 cases (8 eyes). The everall mean age of the group was: $4.18{\pm}2.89$ years (range 0.8 to 14 years) with a female-to-male ratio of 1 : 1.1 (10 females, and 11 males).

청소년에서 우울 및 불안 증상과 수면 곤란의 성별에 따른 차별적 관련성 (Differential Relations of Depression, Anxiety and Sleep Disturbances by Gender in Young Adolescents)

  • 김은진;강수경;문명성;임세원;오강섭
    • 정신신체의학
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    • 제18권2호
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    • pp.62-71
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    • 2010
  • 연구목적 청소년에서 성별에 따른 불안, 우울과 수면 장애의 유병율을 조사하고 우울, 불안과 수면 곤란의 관련성을 성별에 따라 분석하고자 한다. 방 법 서울시 마포구 내 7개 중학교의 1학년 학생 1,422명을 대상으로 자가 보고 질문지인 Children's Depression Inventory(CDI), Beck Anxiety Inventory(BAI), Pittsburgh Sleep Quality Index(PSQI)를 실시하였다. CDI, BAI, 그리고 PSQI는 각각 다음과 같이 분류되었다 : $\leq$21, 22-25, 26-28, 그리고 $\geq$29 ; $\leq$21, 22-26, 27-31, 그리고 $\geq$32 ; $\geq$5, <5. 각각의 cut-off 점수는 CDI 22, BAI 22 그리고 PSQI는 5점 이었다. 두 군간 연속 변수 비교에는 독립 t-검정, 비 연속변수 비교에는 $\chi^2$-검정, 불안과 우울 증상이 수면 곤란에 미치는 영향은 로지스틱 회귀분석을 이용하였다. 결 과 여학생에서 평균 CDI 점수($12.52{\pm}8.32$ vs. $10.39{\pm}7.52$ ; p=0.003), BAI($7.77{\pm}7.9$ vs. $9.84{\pm}9.044$ ; p<0.001) 그리고 PSQI($4.57{\pm}2.67$ vs. $3.64{\pm}2.30$ ; p=0.013)는 남학생보다 유의하게 높았다. 그러나 성별, 과거 정신과 치료력을 통제한 후, 매우 높은 수준의 우울과 불안 상태에서 남학생이 수면 곤란을 경험할 위험도가 여학생에 비해 현저히 높았다(CDI aOR, 14.66 ; 95% CI, 4.17-51.53, BAI aOR, 32.99 ; 95% CI, 4.26-255.39). 결 론 이 연구 결과는 여학생에 비해 남학생에서 우울과 불안의 정도가 심각할 때 수면 곤란을 경험할 위험이 더욱 높다는 것을 시사한다.

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Effects of PGF2 α and GnRH during Different Ovarian Status at Onset of Puberty in Murrah Buffalo Heifers (Bubalus bubalis)

  • Singh, c.;Madan, M.L.
    • Asian-Australasian Journal of Animal Sciences
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    • 제13권8호
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    • pp.1059-1062
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    • 2000
  • The objective of the investigation was to study the effect of intramuscular $PGF_2\;{\alpha}$ and GnRH on estrus behavior and ovarian response in Murrah buffalo heifers. Twelve Murrah buffalo heifers at 32 months of age that had not exhibited behavioral estrus symptom were included in the experiment. Out of 12,4 heifers were in follicular phase (plasma estradiol $57.05{\pm}12.52pg/ml$), another 4 heifers were in luteal phase (Plasma progesterone $2.24{\pm}0.25ng/ml$) while the ovaries of remaining four heifers were inactive (estradiol $23.70{\pm}1.66pg/ml$and progesterone $0.32{\pm}0.06ng/ml$). $PGF_2\;{\alpha}$ (25 mg, Lutalyse, im) and GnRH (200 ug, Fertagyl, iv) was administered to each heifer at interval of 10 days. The plasma progesterone concentration decreased within 48 hrs after $PGF_2\;{\alpha}$ injection and followed thereafter with follicular growth, estrus and ovulation. GnRH administration induced follicular growth, elevation of plasma estradiol concentration with subsequent exhibition of behavioral estrus in 2 out of 4 heifers having inactive ovary. The observation reveals that Murrah buffalo heifers at 32 months of age have developed receptors for $PGF_2\;{\alpha}$ and GnRH on ovarian and pituitary tissue respectively and response the single injection of $PGF_2\;{\alpha}$ and GnRH similar to the mature cycling animals.

A GROWING ALGEBRA CONTAINING THE POLYNOMIAL RING

  • Choi, Seul-Hee
    • 호남수학학술지
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    • 제32권3호
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    • pp.467-480
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    • 2010
  • There are various papers on finding all the derivations of a non-associative algebra and an anti-symmetrized algebra (see [2], [3], [4], [5], [6], [10], [13], [15], [16]). We and all the derivations of the growing algebra WN($e^{{\pm}x_1x_2x_3}$, 0, 3)[1] with the set of all right annihilators $T_3$ = $\{id,\;\partial_1,\;\partial_2,\;\partial_3\}$ in the paper. The dimension of $Der_{non}$(WN($e^{{\pm}x_1x_2x_3}$, 0, 3)$_{[1]}$) of the algebra WN($e^{{\pm}x_1x_2x_3}$, 0, 3)$_{[1]}$ is one and every derivation of the algebra WN($e^{{\pm}x_1x_2x_3}$, 0, 3)$_{[1]}$ is outer. We show that there is a class P of purely outer algebras in this work.

Oxidation of Benzyl Alcohols with Extraordinarily High Kinetic Isotope Effects

  • Jo, Myeong-Ran;Seok, Won-K.
    • Bulletin of the Korean Chemical Society
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    • 제32권spc8호
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    • pp.3003-3008
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    • 2011
  • Reactions of benzyl alcohol and its derivatives by [Ru$^{IV}$(tpy)(dcbpy)(O)]$^{2+}$ (tpy = 2,2':6',2"-terpyridine; dcbpy = 4,4'-dicarboxy-2,2'-bipyridine) leading to the corresponding benzaldehydes in acetonitrile and water have been studied. Kinetic studies show that the reaction is first-order in both alcohol and oxidant, with k = 1.65 (${\pm}$ 0.1) $M^{-1}s^{-1}$ at $20^{\circ}C$, ${\Delta}H^{\ddag}$ = 4.3 (${\pm}$ 0.1) kcal/mol, ${\Delta}S^{\ddag}$ = -22 (${\pm}$ 1) eu, and $E_a$ = 4.9 (${\pm}$ 0.1) kcal/mol. High ${\alpha}$ C-H kinetic isotope effects are observed, but O-H solvent isotope effects are negligible. Spectral evidences with the isotope effects suggest that oxidation of benzyl alcohols occurs by a two-electron, hydride transfer. The catalytic cycles of aerobic benzyl alcohol oxidation are employed.