• Title/Summary/Keyword: Individuals' Resistance

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Comparison of Various Methods for Estrus Stage Determination in Bitch (개의 발정 진단 방법에 따른 효율 비교)

  • Ko, Young-Jin;Kang, Eun-Ju;Lee, Sung-Lim
    • Journal of Embryo Transfer
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    • v.24 no.3
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    • pp.131-137
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    • 2009
  • In dogs, correct diagnosis of estrus is important and the exact time of ovulation can be determined by variouse methods. Vaginal cytology has commonly used in conjunction with the physical examination, clinical history, vaginoscopy, and hormonal assays to determine the stage of the reproductive cycle. This study was therefore investigated the effectiveness of direct ovulation detector designed by changes of electrical resistance in vaginal mucus following different estrus cycles with several methods; vaginal cytology, concentration of plasma estrogen and progesterone, and direct examination by laparotomy. A total of 12 bitches was selected for the study and observed estrus signs. The bitches were evaluated clinical sign (vulvar swelling and bleeding), cytological examination (keratocyte and RBC), electrical resistance, plasma estrogen and progesterone concentration for estrus assessment. Accuracy of ovulation detection by vaginal cytology was significantly (p<0.05) lower than those by electrical resistance and plasma progesterone concentration, based on the confirmation by laparotomy. Vaginal smear is not confidential method compared to detection of electrical resistance and plasma progesterone concentration at ovulation. Although the value of electrical resistance was varied at the same points of estrus in individuals, ovulation was occurred at the first day which shown the peak of electrical resistance and mating time was third day after peak. In conclusion, ovulation detector designed by changes of electrical resistance is an effective and economic instrument for predicting estrus and ovulation in bitches.

Symptom and Resistance of Cultivated and Wild Capsicum Accessions to Tomato Spotted Wilt Virus (토마토반점위조바이러스에 대한 재배 및 야생형 고추 수집종의 병징과 저항성 조사)

  • Han, Jung-Heon;Lee, Won-Phil;Lee, Jun-Dae;Kim, Mi-Kyung;Choi, Hong-Soo;Yoon, Jae-Bok
    • Research in Plant Disease
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    • v.17 no.1
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    • pp.59-65
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    • 2011
  • One hundred Capsicum accessions were screened for symptomatic response and resistance to Tomato spotted wilt virus-pb1 (TSWV-pb1). Symptom and its severity rating were checked by visual observation at 9, 12, 14, and 45 days after inoculation, respectively. Enzyme-linked immune-sorbent assay was performed all tested individuals on non-inoculated upper leaves after the third rating to indentify viral infection. Leaf curling was predominant in almost susceptible individuals of each accession. Stem necrosis was most frequent in wild species while yellowing in commercial hybrids and Korean land race cultivars. Ring spot, a typical symptom of TSWV, was rarely detected in some of a few accessions. Different levels of resistance to TSWV-pb1 were observed among the tested accessions. High level of resistance was detected in 4 commercial cultivars of Kpc-35, -36, -57, and -62, and 8 wild species of PBI-11, C00105, PBC076, PBC280, PBC426, PBC495, PBC537, and PI201238 through seedling test by mechanical inoculation.

Effect of zinc supplementation on insulin resistance and metabolic risk factors in obese Korean women

  • Kim, Ji-Hye;Lee, Sun-Ju
    • Nutrition Research and Practice
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    • v.6 no.3
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    • pp.221-225
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    • 2012
  • Zinc deficiency is known to be associated with insulin resistance in obese individuals. This study was performed to evaluate the effect of zinc supplementation on insulin resistance and metabolic risk factors in obese Korean women. Forty obese women (body mass index (BMI) ${\geq}25kg/m^2$) aged 19-28 years were recruited for this study. Twenty women of the study group took 30 mg/day of supplemental zinc as zinc gluconate for 8 weeks and 20 women of control group took placebo. Usual dietary zinc intake was estimated from 3-day diet records. Insulin resistances were measured using Homeostasis model assessment (HOMA) indices, and insulin sensitivities Matsuda indices, which were calculated using oral glucose tolerance test data. Metabolic risk factors, such as waist circumference, blood pressure, fasting glucose, triglyceride, high density lipoprotein (HDL) cholesterol, and adipocyte hormones such as leptin, and adiponectin were also measured. At the beginning of study, dietary zinc averaged 7.31 mg/day and serum zinc averaged $12.98{\mu}mol/L$ in the study group. Zinc supplementation increased serum zinc by 15% and urinary zinc by 56% (P < 0.05). HOMA values tended to decrease and insulin sensitivity increased slightly in the study group, but not significantly so. BMI, waist circumference, blood pressure, blood glucose, triglyceride, HDL cholesterol, and adipocyte hormones did not change in either the study or control group. These results suggest that zinc status may not affect insulin resistance and metabolic risk factors in obese Korean women. Further research is required on a larger cohort with a longer follow-up to determine the effects of zinc status on insulin resistance and metabolic variables.

Paradigm Shift in the Study of Treatment Resistant Depression (치료저항성 우울증의 연구에서 패러다임의 전환)

  • Kim, Yong-Ku
    • Korean Journal of Biological Psychiatry
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    • v.23 no.2
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    • pp.37-40
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    • 2016
  • Treatment-resistant depression (TRD) is a major public health problem. It is estimated that about 30% of patients with major depressive disorder do not show substantial clinical improvement to somatic or psychosocial treatment. Most of studies for TRD have focused on the subjects already known as TRD. Patients with unipolar depressive episodes that do not respond satisfactorily to numerous sequential treatment regimens were included in the TRD studies. Such post hoc experimental design can be regarded only as consequences of having TRD, rather than as causal risk factors for it. Although informative, data derived from such studies often do not allow a distinction to be made between cause and effect. So, we should shift paradigm toward examining the risk for developing TRD in untreated depressed patients. To deal with this problem, untreated depressed patients should be enrolled in the study to identify biological markers for treatment resistance. The peripheral or central biological markers should be explored before starting treatment. Subsequent systematic administration of treatments with appropriate monitoring in the subjects can determine the risk for developing treatment resistance in untreated individuals. Such information could give a cue to improve the initial diagnosis and provide more effective treatment for TRD.

Romanticism in Men's Fashion since the 1990s (1990년대 이후 남성 패션에 표현된 로맨티시즘)

  • Shin Hye-Jeong;Ha Ji-Soo
    • Journal of the Korean Society of Costume
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    • v.56 no.6 s.105
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    • pp.96-113
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    • 2006
  • Romanticism factors in fashion since the 1990s is more about feminine softness and grace, and suggests the image of a fantastic cute and lovable girl with dreams. This study examined romanticism in literature focusing on the 19th century, which is considered the time of romanticism, and examined romanticism in men's fashion since the 1990s based on the newly found characteristics of romanticism. Romanticism in men's fashion since the 1990s can be divided into three categories of individual sensitivity pursuing romanticism, romanticism with a desire to aspire, and resistance inclined romanticism. First, individual sensitivity pursuing romanticism is the type that places importance on expression of emotions based on the values on individuals, and was expressed as either romanticism with sexual charm or as romanticism with an extremely feminine taste. Second, romanticism with a desire to aspire was the most prominent romanticism fashion type in men's fashion since the 1990s and it can be divided into four categories of aspiration of nature and time, aspiration of the past and romanticism, aspiration of childhood and aspiration of new exotic cultures. Third, resistance inclined romanticism was expressed as romanticism that is inclined to resist against materialism and romanticism that resists against youth culture.

Development of a SCAR Marker Linked to Ph-3 in Solanum ssp.

  • Park, Pue Hee;Chae, Young;Kim, Hyun-Ran;Chung, Kyeong-Ho;Oh, Dae-Geun;Kim, Ki-Taek
    • Korean Journal of Breeding Science
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    • v.42 no.2
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    • pp.139-143
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    • 2010
  • Late blight caused by Phytophthora infestans is historically a serious epidemic disease in potato and tomato cultivations. Accession L3708 (Solanum pimpinellifolium), a new source for late blight resistance was identified in AVRDC, and carries the resistance gene, Ph-3, incompatible to P. infestans race 3. The AFLP markers linked to Ph-3 were previously developed from the L3708 accession (Chunwongse et al. 2002). To facilitate tomato breeding with the Ph-3 gene, an attempt was made to convert AFLP markers to sequence-characterized amplified region (SCAR) markers. Among 6 AFLP markers, only one AFLP marker, L87, was successfully converted to SCAR marker. The resistance-specific 230 bp AFLP fragment was cloned and sequenced, and the PCR primer amplifying a 123 bp fragment was designed. This SCAR marker could discriminate resistant and susceptible individuals with high stringency. The developed SCAR marker could be used for the marker assisted-selection in tomato breeding programs.

Social Media Performance: From the Perspective of Social Media Apathetic Behavior

  • Inwon Kang;Sungjoon Yoo
    • Journal of Korea Trade
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    • v.26 no.3
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    • pp.1-22
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    • 2022
  • Purpose - Social media platforms have presented individuals with an opportunity to create and maintain their social relationship through the use of social media services. However, such social relationship has a negative influence on users' interest in social media. Design/methodology - Using structural equation modeling, this study seeks to examines the effects of different social media conflicts (individual and social conflicts) on users' psychological internal state, especially user apathetic behavior Findings - The findings confirm that, among social media conflicts, social-related conflict, especially social interaction overload has a negative effect on cognitive resonance, while individual conflict has the highest effect on cognitive dissonance. Also, cognitive dissonance has a much greater effect than cognitive resonance on user resistance, this means that users' negative perception of social media has a greater influence on their resistance. Lastly, user's resistance was found to have a positive influence on user's apathetic behavior. Originality/value - In other to capture social media Apathetic behavior, this study focus on social media conflict perspective, which includes social-related conflict and individual conflict, which are found to influence users' internal states towards social media and further induce social media behavior. This study is unique because it is among the first to explore social media apathetic behavior by focusing on the influence of both external social media conflict and internal state. Also, this study proposed that social related conflict has a higher negative influence on WeChat user than individual related conflict.

Low Level of TERC Gene Amplification between Chronic Myeloid Leukaemia Patients Resistant and Respond to Imatinib Mesylate Treatment

  • Mohamad Ashari, Zaidatul Shakila;Sulong, Sarina;Hassan, Rosline;Husin, Azlan;Sim, Goh Ai;Wahid, S. Fadilah Abdul
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.4
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    • pp.1863-1869
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    • 2014
  • The amplification of telomerase component (TERC) gene could play an important role in generation and treatment of haematological malignancies. This present study was aimed to investigate copy number amplification status of TERC gene in chronic myeloid leukaemia (CML) patients who were being treated with imatinib mesylate (IM). Genomic DNA was extracted from peripheral blood of CML-IM Resistant (n=63), CML-IM Respond (n=63) and healthy individuals (n=30). TERC gene copy number predicted (CNP) and copy number calculated (CNC) were determined based on $Taqman^{(R)}$ Copy Number Assay. Fluorescence in situ hybridization (FISH) analysis was performed to confirm the normal signal pattern in C4 (calibrator) for TERC gene. Nine of CML patients showed TERC gene amplification (CNP=3), others had 2 CNP. A total of 17 CML patients expressed CNC>2.31 and the rest had 2.31>CNC>1.5. TERC gene CNP value in healthy individuals was 2 and their CNC value showed in range 1.59-2.31. The average CNC TERC gene copy number was 2.07, 1.99 and 1.94 in CML-IM Resistant patients, CML-IM Respond and healthy groups, respectively. No significant difference of TERC gene amplification observed between CML-IM Resistant and CML-IM Respond patients. Low levels of TERC gene amplification might not have a huge impact in haematological disorders especially in terms of resistance towards IM treatment.

Breeding for Powdery Mildew Resistant Varieties in Cucurbita moschata (흰가루병 저항성 동양종 호박 품종 육성)

  • Cho Myeong-Cheoul;Om Young-Hyun;Kim Dae-Hyun;Heo Yun-Chan;Kim Jeong-Su;Park Hyo-Guen
    • Research in Plant Disease
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    • v.11 no.2
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    • pp.106-114
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    • 2005
  • To breed powdery mildew resistant varieties, 104 accessions of Cucurbita spp. germplasm were evaluated. Powdery mildew resistance and horticultural characteristics of the accessions were investigated in the field conditions. C. martinezii was selected for high resistance to powdery mildew in the field. The growth of powdery mildew pathogen and response of leaf surface tissue to the pathogen were observed after artificial inoculation to resistant C martinezii and susceptible C. moschata cv. 'Wonye No.402'. Mycelium growth was very clearly different between resistant C. martinezii and susceptible C moschata cv. 'Wonye No. 402' at 5 days after inoculation at the adult stage. Interspecific hybridization was attempted to transfer powdery mildew resistance gene(s) from C. martinezii to C. moschata. A single dominant gene action was postulated as deter mining powdery mildew resistance at the seedling stage. But for the effective selection of powdery mildew resistant individuals, it was established that adult plant resistance should be confirmed in the field conditions after the seedling test. Through the seedling and field tests, C. moschata lines resistant to powdery mildew and superior to horticultural characteristics, were selected after 2 backcrossing and 3 selfing generations. The fruit characteristics of newly developed lines were similar to those of the recurrent parent, 'Jaechenjarae'.

A Study on the Activation of Sharing Cyber-Threat Information among Businesses (기업의 사이버위협정보 공유 활성화에 관한 연구)

  • Seokeon Choe;Jongsub Lee;Geunsun Tak;Joowon Choi
    • KIPS Transactions on Computer and Communication Systems
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    • v.12 no.4
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    • pp.143-156
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    • 2023
  • The domestic threat information sharing system to deal with various security threats in the rapidly changing cyber environment needs to be improved. In this study, to solve these problems and promote the activation of threat information sharing, we derive a research model based on the value-based containment model (VAM) for vital factors in information sharing. After conducting a Ricardian 5-point survey on a total of 204 individuals, the statistical results of the first 151 individuals were analyzed using SPSS and AMOS, and the statistical results of the second 204 individuals were analyzed using R-Studio. As a result, perceivability was found to have a significant impact as a core factor in the activation of cyber threat information sharing (β=0.405, p<0.01), and the hindrance factor was analyzed as innovation resistance (β=-0.152, p<0.01). Microscopically, the obtained results can be applied to factor analysis for activating information sharing of cyber threats by companies in the future, and macroscopically, they can contribute to the foundational development of a national cyber threat response system.