• 한국지리정보학회지
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• 제20권2호
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• pp.17-31
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• 2017

본 연구의 목적은 대구광역시 동구의 미조성공원인 돈지봉공원을 대상으로 기능적 특성을 고려한 종합적 녹지평가를 실시하고, 계획방향을 설정하는 것이다. 이를 위해 세 가지 녹지 기능에 따른 13개 지표를 토대로 녹지공간을 평가하였으며, 종합적 녹지계획방향을 제안하였다. 자연생태 및 환경조절적 기능을 평가한 결과, 공원 중앙지역을 따라 높은 점수가 나타난 반면, 공원 경계지역 및 포장지역에서는 낮은 점수를 가지는 것으로 분석되었다. 이용적 기능을 평가한 결과, 남동쪽의 녹지는 주거지역과의 인접성으로 인해 높은 점수를 가지는 것으로 나타났다. 돈지봉공원에 대한 종합적 녹지 평가 결과, 공원의 중앙지역은 자연생태 및 환경조절적 기능이 우수하게 나타나 종합점수가 높게 평가되었고 반면, 공원 가장자리의 시설지역 및 경작지는 낮게 평가되었다. 종합 평가 결과를 토대로 계획방향을 설정한 결과, 계획공간은 보전공간, 복원공간, 완충공간, 환경감시 초소 및 전망대, 탐방로, 시설공간, 수변녹지공간으로 구분하였고, 이에 따른 구체적 계획방향을 제안하였다. 이상의 결과들은 향후 미조성 공원과 같은 신규 공원 조성시 객관적인 계획방향 설정을 위한 기초자료가 될 수 있을 것으로 판단된다.

• 한국건설관리학회논문집
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• 제15권6호
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• pp.105-112
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• 2014

본 논문에서는 재무성과를 나타내는 다양한 지표 들 중 기업 안정성과 관련하여 대표적인 지표인 유동비율 및 부채비율과 건설업체 사업 포트폴리오 다각화 수준 간에 관계성을 분석하여 시사점을 도출하는 것을 목적으로 한다. 이에 본 연구에서는 건설업체 안정성 변수로 유동비율과 부채비율을 분석변수로 활용하였다. 건설업체의 사업 포트폴리오 다각화 수준을 나타내는 지표로는 베리-허핀달(Berry-Herfindahl) 지수를 활용하였다. 각 변수의 시계열 자료는 2001년 1분기부터 2013년 3분기까지의 분기별 자료이며 금융감독원의 금융공시시스템을 통해 확보하였다. 분석결과, 유동비율과 부채비율이 증가하게 되면 사업 다각화가 이루어지며, 역으로 사업 다각화가 이루어지면 유동비율은 높아지고, 부채비율은 낮아지는 것으로 확인되었다. 하지만 유동비율과 부채비율의 변동이 사업 다각화에 미치는 영향보다 사업 다각화가 유동비율 및 부채비율에 미치는 영향이 상대적으로 큰 것으로 확인되었다. 반면에 다각화수준이 높아지게 되면, 건설업체의 유동비율이 높아지고, 부채비율은 낮아지는 매우 긍정적인 효과가 발생하는 것으로 확인되었다. 즉 건설업체의 재무적 안정성을 추구하는데 있어서 사업 포트폴리오 다각화는 필수적임을 나타낸다.

• Clinical and Experimental Reproductive Medicine
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• 제29권1호
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• pp.57-66
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• 2002

Objective : This study was designed to investigate the interrelationship and clinical usefulness of sperm morphology by strict criteria (SM), acrosome reaction following ionophore challenge test (ARIC) and sperm penetration assay (SPA) using zona-free hamster ova as prognostic factors in in vitro fertilization. Materials and Methods: Semen samples were provided by 83 patients undergoing IVF. We first evaluated the differences between normal fertilization group and poor fertilization group on three andrologic tests. Secondly, we analyzed the relationship between the three andrologic tests and in vitro fertilization on IVF settings. Finally, we evaluated the effectiveness of the three andrologic tests as the prognostic indicators for fertilizing ability. Results: The fertilization rate of all men in the poor fertilization group was less than 30%; but there was no evidence that this poor fertilization was due to oocyte defects. The results of three andrologic tests were significatly higher in normal fertilization group. Fertilization rate (%) in vitro was highly correlated (p<0.001) with % normal sperm by SM, ARIC value (%), and SPA result. By using Receiver-Operator-Characteristic curve (ROC), we evaluated the effectiveness of these three tests. The sensitivity and specificity of SM, ARIC test and SPA in predicting fertilization potential in IVF setting were 76% and 75%, 84% and 90%, and 76% and 95%, respectively. Conclusion: Our data suggest that the three andrologic tests can be reliable tools as prognostic factors of sperm fertilizing ability. Among these test, ARIC test and SPA gave more accurate information on fertilizing capacity. ARIC test was shown to have a predictive value for fertilizing ability comparable to that of SPA that appears to be a simple and cost-effective addition to current andrology laboratory. Combined application of these three tests may give more information on predicting sperm fertilizing capacity.

• Asian-Australasian Journal of Animal Sciences
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• 제33권10호
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• pp.1656-1665
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• 2020

Objective: This study aimed to determine the effects of stress during slaughter of beef cattle on physiological parameters, carcass, and meat quality at a Federal Inspection Type slaughterhouse located in the southeast of Mexico. Methods: A total of 448 carcasses of male Zebu×European steers with an average age of 36 months were included. Carcass assessment of presence of bruises and bruise characteristics was carried out on each half-carcass. Blood variable indicators of stress (packed cell volume, neutrophil to lymphocyte ratio, glucose, cortisol concentration) and meat quality parameters (pH, color, shear force, drip loss) were evaluated. Results: Of the 448 carcasses evaluated, 81% of the carcasses showed at least one bruise; one bruise was detected in 36.6% and two bruises in 27.0% of animals. Of the 775 bruises found, 69.2% of the bruises were grade 1 in region 3. Of the 448 carcasses studied, 69.6% showed hyperglycemia (6.91 mmol/L); 44.3% and 22.7% showed high (74.7 ng/mL) and extremely high (108.8 ng/mL) cortisol levels, respectively, indicative of inadequate handling of animals during preslaughter and slaughter. Of the carcasses evaluated, 90.4% had a pH ≥5.8 with an average of pH 6.3. In both pH groups, meat samples showed L^⋆ values >37.0 (81.6%) and a shear force >54.3 N; meat pH≥5.8 group showed a drip loss of 2.5%. These findings were indicative of dark, firm, and dry (DFD) meat. According to principal component analysis, grades 1 and 2 bruises in region 3 and grade 1 bruises in region 5 were highly associated with cortisol, drip loss, and color parameters b^⋆ and h^⋆ and were negatively associated with L^⋆, a^⋆, and C^⋆. Conclusion: The bruises probably caused by stress-inducing situations triggered DFD meat. Appropriate changes in handling routines in operating conditions should be made to minimize stress to animals during the slaughter process to improve animal welfare and meat quality.

• Asian-Australasian Journal of Animal Sciences
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• 제33권11호
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• pp.1848-1857
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• 2020

Objective: An experiment was designed to determine if behaviour traits expressed by twin- and triplet-bearing lambs and their dams at 3 to 18 hours of age (after the immediate ewe-lamb bonding had occurred) were associated with lamb survival to weaning. Methods: The behaviour of twin and triplet lambs and their dams was assessed in the paddock at 3 to 18 hours after birth. Observations were made of the number of high- and low-pitched bleats, time to stand, make contact with dam, suck from dam and follow dam were recorded for each lamb. The maternal behaviour score of each dam was assessed. A random sub-sample of lambs were assessed during a maternal-recognition test at 12 or 24 hours of age. Traits included time spent standing, sitting, walking, time taken to reach the ewes and time spent with the ewes as well as the number of high- and low-pitched bleats emitted by the lamb. Results: In the paddock, for each additional second required for twin-born lambs to follow their dam, lambs were 1.004 (95% confidence interval [CI] 1.000 to 1.008) times more likely to survive to weaning (p<0.05). The opposite relationship, however, was seen in triplet lambs. For each additional second required for triplet-born lambs to follow their dam, lambs were 0.996 (95% CI 0.993 to 0.999) times as likely to survive to weaning (p<0.05). During the maternal recognition test, twin-born lambs were 0.989 (95% CI 0.979 to 1.000) times as likely to survive to weaning for every additional second they took to reach the contact zone (p<0.05). Similarly, triplet-born lambs were 0.994 (95% CI 0.989 to 0.999) as likely to survive for every additional second they took to reach their dam (p<0.05). Conclusion: All ewe behaviours and the majority of lamb paddock and test behaviours were not associated with the survival of twin- or triplet-born lambs and, therefore, are of little use as indicators of lamb survival to weaning.

• Asian-Australasian Journal of Animal Sciences
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• 제33권12호
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• pp.1930-1939
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• 2020

Objective: This study was conducted to investigate the differences in several serum adipokines in perinatal dairy cows with type I and II ketosis, and the correlations between these adipokines and the two types of ketosis. Methods: Serum adiponectin (ADP), leptin (LEP), resistin, tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) levels, and energy balance indicators related to ketosis were measured. Type I and II ketosis were distinguished by serum glucose (Glu) and Y values and the correlations between adipokines in the two types of ketosis were analyzed. Results: β-Hydroxybutyric acid of type I ketosis cows was significantly negatively correlated with insulin (INS) and LEP and had a significant positive correlation with serum ADP. In type II ketosis cows, ADP and LEP were significantly negatively correlated, and INS and resistin were significantly positively correlated. Revised quantitative INS sensitivity check index (RQUICKI) values had a significantly positive correlation with ADP and had a very significant and significant negative correlation with resistin, TNF-α, and IL-6. ADP was significantly negatively correlated with resistin and TNF-α, LEP had a significantly positive correlation with TNF-α, and a significantly positive correlation was shown among resistin, IL-6, and TNF-α. There was also a significant positive correlation between IL-6 and TNF-α. Conclusion: INS, ADP, and LEP might exert biological influences to help the body recover from negative energy balance, whereas resistin, TNF-α, and IL-6 in type II ketosis cows exacerbated INS resistance and inhibited the production and secretion of ADP, weakened INS sensitivity, and liver protection function, and aggravated ketosis.

• Asian Pacific Journal of Cancer Prevention
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• 제16권10호
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• pp.4223-4228
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• 2015

Objective: To investigate the diagnostic value of the R-way colposcopic evaluation system (R-way system) in cervical cancer screening. Materials and Methods: Between August 2013 and August 2014, a total of 1,059 cases referred to colposcopy in Peking University First Hospital were studied using both the R-way system and conventional colposcopy. Our study evaluated and compared the diagnostic ability of the two methods in detecting high-grade lesions and cervical cancer (hereinafter called CIN2+). Evaluation indicators including sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), Youden index and the area under the curve (AUC) of the receiver operating characteristic (ROC) were calculated. Results: The R-way system had a slightly lower specificity (94.5%) than conventional colposcopy (96.0%) for CIN2+ detection (P=0.181). However, the sensitivity (77.8%) was significantly higher than with the conventional colposcopic method (46.6%) (${\chi}^2=64.351$, P<0.001). In addition, the AUC of the ROC for CIN2+ detection using the R-way system (0.839) was larger than that with conventional colposcopy (0.731) (Z=4.348, P<0.001). If preliminary result had been drawn from cervical exfoliated cytology before colposcopy referral, combination of the R-way system with cytology could increase the sensitivity to 93.9% for CIN2+ detection (excluding ASCUS\LSIL), confirmed by multipoint biopsy or ECC. Conclusions: The diagnostic value of the R-way evaluation system is higher than that of conventional colposcopic evaluation in cervical cancer screening. Moreover, taking the ease of use and standardized quality control management into account, the R-way system is highly preferable.

• Nutrition Research and Practice
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• 제14권1호
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• pp.25-31
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• 2020

BACKGROUND/OBJECTIVES: To date, sodium intake has been evaluated based on spot urine instead of 24-hour (hr) urine collection. Nevertheless, the optimal method for assessing daily sodium intake remains unclear. SUBJECTS/METHODS: Fifteen male (age 32.7 ± 6.5 years) participants were offered 3 meals with a total of 9-10 g salt over 24 hours, and 24-hr urine was collected from the second-void urine of the first day to the first-void urine of the second day. Twenty-four-hr urinary sodium (24UNa) was estimated using Tanaka's equation and the Korean formula, and spot urine Na, potassium (K), chloride (Cl), urea nitrogen (UN), creatinine (Cr), specific gravity (SG) and osmolality (Osm) were measured. The ratios of urinary Na to other parameters were calculated, and correlations with total measured 24UNa were identified. RESULTS: Average 24-hr urine volume was 1,403 ± 475 mL, and measured 24UNa was 143.9 ± 42.1 mEq (range, 87.1-239.4 mEq). Measured 24UNa was significantly correlated with urinary Na/UN (r = 0.560, P < 0.01), urinary Na/Osm (r = 0.510, P < 0.01), urinary Na/Cr (r = 0.392, P < 0.01), urinary Na/K (r = 0.290, P < 0.01), 24UNa estimated using Tanaka's equation (r = 0.452, P < 0.01) and the Korean formula (r = 0.414, P < 0.01), age (r = 0.548, P < 0.01), weight (r = 0.497, P < 0.01), and height (r = 0.393, P < 0.01) in all spot urine samples. Estimated 24UNa based on the second-void spot urine of the first day tended to be more closely correlated with measured 24UNa than were estimates from the other spot urine samples. The significant parameters correlated with the second-void urine of the first day were urinary Na/K (r = 0.647, P < 0.01), urinary Na/Cr (r = 0.558, P < 0.05), and estimated 24UNa using Tanaka's equation (r = 0.616, P < 0.05) and the Korean formula (r = 0.588, P < 0.05). CONCLUSIONS: Second-void urine is more reliable than first-void urine for estimating 24UNa. Urinary Na/K in the second-void urine on the first day is significantly correlated with 24UNa. Further studies are needed to establish the most reliable index and the optimal time of urine sampling for predicting 24UNa.

• 한국산림과학회지
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• 제97권1호
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• pp.22-29
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• 2008

이 연구는 주요 산림정책사업 중 하나인 임도사업의 집행분석을 통하여 효율적인 집행전략 수립에 필요한 정보를 얻고자 수행되었다. 분석에 필요한 자료는 대구경북, 울산, 부산지역의 정책집행 담당자를 대상으로 하는 설문조사를 통하여 수집되었다. 이 평가모형에서는 정책집행요인, 정책환경요인, 정책내용요인을 독립변수로, 정책결과를 종속변수로 하는 회귀식이 추정되었고 다시 정책결과를 독립변수로 정책효과를 종속변수로 하는 회귀식을 추정하였다. 그러나 이와 같은 변수들은 직접측정이 불가능한 잠재변수(latent variable)로서 이의 측정을 위한 측정지표를 설정하였다. 잠재변수들과 이들 변수들 간의 관계를 측정지표를 통하여 계량화 하고 분석하기 위하여 LISREL(Linear Structural Relationship)분석방식을 사용 하였다. LISREL 분석결과 정책결과변수는 정책집행변수, 정책내용변수와 통계적으로 유의한 관계가 있음을 확인하였다. 당초 평가모형에 포함된 정책주체요인 변수는 정책결과와는 유의성 있는 관계가 나타나지 않았고 정책효과와 유의성 있는 관계가 있는 것으로 추정되었다. 또한 정책결과는 정책효과와 유의성 있는 관계가 있는 것으로 추정되었다. 즉 임도건설은 임업기반조성, 산촌지역주민에 대한 편의 제공, 지역균형발전을 위한 유효한 정책수단임을 확인하였다. 다만, 정책결과가 측정지표의 평가에서 보는바와 같이 만족할 만한 수준에 있지 못한바, 이의 개선을 위하여 정책내용의 개선이 필요하며, 특히 적정단비의 확보와 노선의 선정, 시공방법 등에 있어서 현장집행요원의 의견이 실질적으로 반영될 수 있도록 하는 제도의 개선이 요구된다.

• Asian-Australasian Journal of Animal Sciences
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• 제30권10호
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• pp.1495-1499
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• 2017

Objective: This study aimed to investigate the effects of enrichment resources (a perch, dustbath, and nest) layout in furnished laying-hen cages (FC) on exterior quality of eggs. Methods: One hundred and sixty-eight (168) Hy-Line Brown laying hens at 16 weeks of age were randomly distributed to four treatments: small furnished cages (SFC), medium furnished cages type I (MFC-I), medium furnished cages type II (MFC-II), and medium furnished cages type III (MFC-III). Each treatment had 4 replicates or cages with 6 hens for SFC (24 birds for each SFC) and 12 hen/cage for MFC-I, -II, and -III (48 birds for each MFC-I, -II and -III). Following a 2-week acclimation, data collection started at 18 weeks of age and continued till 52 weeks of age. Dirtiness of egg surface or cracked shell as indicators of the exterior egg quality were recorded each week. Results: The results showed that the proportion of cracked or dirty eggs was significantly affected by the FC type (p<0.01) in that the highest proportion of cracked or dirty eggs was found in MFC-I and the lowest proportion of dirty eggs in SFC. The results of this showed that furnished cage types affected both dirty eggs and cracked eggs (p<0.01). The results also indicated that not nest but dustbath lead to more dirty eggs. Only MFC-I had higher dirty eggs at nest than other FC (p<0.01). The results of dirty eggs in MFC-I and MFC-II compared with SFC and MFC-III seemed suggest that a low position of dustbath led to more dirty eggs. Conclusion: SFC design affected exterior egg quality and the low position of dustbath in FC resulted in higher proportion of dirty eggs.