• Clinical and Experimental Pediatrics
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• v.56 no.12
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• pp.519-522
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• 2013

Timely diagnosis of hyponatremia is important for preventing potential morbidity and mortality as it is often an indicator of underlying disease. The most common cause of eurvolemic hyponatremia is the syndrome of inappropriate antidiuretic hormone (SIADH) secretion. Recent studies have demonstrated that proinflammatory cytokines such as interleukin (IL) $1{\beta}$ and IL-6 are involved in the development of hyponatremia, a condition that is associated with severe inflammation and is related to antidiuretic hormone (ADH) secretion. Serum sodium levels in hyponatremia are inversely correlated with the percentage of neutrophils, C-reactive protein, and N-terminal-pro brain type natriuretic peptide. Additionally, elevated levels of serum IL-6 and IL-$1{\beta}$ are found in inflammatory diseases, and their levels are higher in patients with hyponatremia. Because it is significantly correlated with the degree of inflammation in children, hyponatremia could be used as a diagnostic marker of pediatric inflammatory diseases. Based on available evidence, we hypothesize that hyponatremia may be associated with inflammatory diseases in general. Understanding the mechanisms responsible for augmented ADH secretion during inflammation, monitoring patient sodium levels, and selecting the appropriate intravenous fluid treatment are important components that may lower the morbidity and mortality of patients in a critical condition.

• Journal of Korean Home Economics Education Association
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• v.15 no.3
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• pp.1-12
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• 2003

The purpose of this study is to provide basic information for the development of Creative Discretionary Activity Program to Home Economics teachers. The need scales were developed based on the development characteristics of adolescence and data was collected from 521 middle school students in the seoul. The results are as fallows. 1. Among the seven areas self-understanding and career explorations showed the highest degree of demand. and the area of family relationship and friendship and maladjustment of adolescents followed, knowledge about sex and manner awareness took the lowest position. 2. Finding potential ability, understanding aptitude and personality. understanding IQ and EQ, solution of character showed the highest degree of demand. and solution of stress, interest identification. changing society and new career followed. 3. Demands for Creative Discretionary Activity showed significant difference according to socio-demographic variables such sex, family types and economic levels.

• Journal of the Korean earth science society
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• v.28 no.4
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• pp.415-430
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• 2007

The purpose of this study was to investigate the characteristics of high school students' conceptual understanding about minerals and rocks. A questionnaire was developed to examine students' conceptions of minerals and rocks. The data were collected from 93 students in 10th and 119 students in 11th grades in a high school. The result showed that students' understanding of minerals and rock was on the moderate level. The 10th grade students showed a relatively lower level of understanding about igneous rocks while the degree of the 11th graders' understanding about certain concepts related with melting point in the rock domain was a little bit lower than the average. Although the understanding levels between the two grade levels were similar, there were some items for which students understanding seemed to be more sophisticated with the grade. In the questions about the characteristic of basalt surface, however, the frequencies of non-scientific conceptions were not decreased, rather increased along with the grade. It was also found that the conceptions students acquired from other science lessons as well as earth science classrooms did rather interfere with students' construction of the scientific concepts of minerals and rocks even though sometimes they were helpful for learning. It was suggested that the teachers should understand that some specific terms in earth science have different meanings as they were used in other subjects.

• Journal of Microbiology and Biotechnology
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• v.27 no.6
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• pp.1150-1156
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• 2017

Understanding phosphorus metabolism in photosynthetic organisms is important as it is closely associated with enhanced crop productivity and pollution management for natural ecosystems (e.g., algal blooming). Accordingly, we exploited highly time-resolved metabolic responses to different levels of phosphate deprivation in Chlamydomonas reinhardtii, a photosynthetic model organism. We conducted non-targeted primary metabolite profiling using gas-chromatography time-of-flight mass spectrometric analysis. Primarily, we systematically identified main contributors to degree-wise responses corresponding to the levels of phosphate deprivation. Additionally, we systematically characterized the metabolite sets specific to different phosphate conditions and their interactions with culture time. Among them were various types of fatty acids that were most dynamically modulated by the phosphate availability and culture time in addition to phosphorylated compounds.

• Journal of the Korean Society of Earth Science Education
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• v.16 no.2
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• pp.261-275
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• 2023

The purpose of this study was to analyze the conceptual understanding of carbon neutrality among secondary school science pre-service teachers, as well as to identify gaze patterns in visual materials. For this study, gaze tracking data of 20 pre-service secondary school science teachers were analyzed. Through this, the levels of conceptual understanding of carbon neutrality were categorized for the participants, and differences in gaze patterns were analyzed based on the degree of conceptual understanding of carbon neutrality. The research findings are as follows. First, as a result of performing modeling activities to predict carbon emissions and removals until 2100 using the concept of '2050 carbon neutrality,' 50% of the participants held a conception that carbon emissions would continue to increase. Additionally, 25% of the participants did not properly understand the causal relationship between net carbon dioxide emissions and cumulative concentrations. Second, the gaze movements of the participants regarding visual materials related to carbon neutrality were significantly influenced by the information presented in the text area, and in the case of graphs, the focus was mainly on the data area. Moreover, when visual data with the same function and category were arranged, participants showed the most interest in materials explaining concepts or visual data placed on the left side. This implies a preference for specific positions or orders. Participants with lower levels of conceptual understanding and inadequate grasp of causal relationships among elements exhibited notably reduced concentration and overall gaze flow. These findings suggest that conceptual understanding of carbon neutrality including climate change and natural disaster significantly influences interest in and engagement with visual materials.

• Nutrition Research and Practice
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• v.4 no.5
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• pp.428-432
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• 2010

In this study, we investigated that consumers could differentiate between levels of claims and clarify how a visual aid influences consumer understanding of the different claim levels. We interviewed 2,000 consumers in 13 shopping malls on their perception of and confidence in different levels of health claims using seven point scales. The average confidence scores given by participants were 4.17 for the probable level and 4.07 for the possible level; the score for the probable level was significantly higher than that for the possible level (P < 0.05). Scores for confidence in claims after reading labels with and without a visual aid were 5.27 and 4.43, respectively; the score for labeling with a visual aid was significantly higher than for labeling without a visual aid (P < 0.01). Our results provide compelling evidence that providing health claims with qualifying language differentiating levels of scientific evidence can help consumers understand the strength of scientific evidence behind those claims. Moreover, when a visual aid was included, consumers perceived the scientific levels more clearly and had greater confidence in their meanings than when a visual aid was not included. Although this result suggests that consumers react differently to different claim levels, it is not yet clear whether consumers understand the variations in the degree of scientific support.

• English Language & Literature Teaching
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• v.8 no.1
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• pp.143-165
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• 2002

The object of the present study was to examine whether it is possible to get appropriate data to examine the accountability and effectiveness of the elementary English curriculum from the present testing system at elementary schools. The present elementary education policy encourages using performance assessment relying mainly on teachers' observation of students' performanceinstead of objective tests of which the results are given in hierarchical number. To obtain objective data from the performance assessment, it is a prerequisite that teachers understand the achievement criteria set by the curriculum and be able to judge' performance objectively based on the same criteria. A questionnaire was used to examine the degree of teachers' understanding of the achievement criteria. A listening test was developed and given to 13 classes of 4th graders. The English teachers of the 13 classes were asked to judge whether each of their students had achieved the curriculum objective. The distributions of the test scores and teachers judgments were compared across the teachers to examine whether the teachers had the same achievement criteria. The survey showed that about a third of elementary school teachers reported that they did not have an understanding of the achievement criteria set by the curriculum. The comparison analysis showed that the levels of achievement criteria varied greatly among the elementary school teachers.

• Earthquakes and Structures
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• v.18 no.2
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• pp.263-273
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• 2020

The use of energy concepts in seismic analysis and design of structures requires the understanding of the input energy response of multi-degree-of-freedom (MDOF) systems subjected to strong ground motions. For design purposes and non-time consuming analysis, however, it would be beneficial to associate the input energy response of MDOF systems with those of single-degree-of-freedom (SDOF) systems. In this paper, the theoretical formulation of energy input to MDOF systems is developed on the basis that only a particular portion of the total mass distributed among floor levels is effective in the nth-mode response. The input energy response histories of several reinforced concrete frames subjected to a set of eleven horizontal acceleration histories selected from actual recorded events and scaled in time domain are obtained. The contribution of the fundamental mode to the total input energy response of MDOF frames is demonstrated both graphically and numerically. The input energy of the fundamental mode is found to be a good indicator of the total energy input to two-dimensional regular MDOF structures. The numerical results computed by the proposed formulation are verified with relative input energy time histories directly computed from linear time history analysis. Finally, the elastic input energies are compared with those computed from time history analysis of nonlinear MDOF systems.

• International Journal of Industrial Entomology and Biomaterials
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• v.31 no.2
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• pp.35-39
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• 2015

The developmental responses of insects to temperature are important considerations in gaining a better understanding of their ecology and life histories. Temperature-dependent phenology models permit examination of the effects of temperature on the geographical distributions, population dynamics, and management of insects. Measurements of insect developmental and survival responses to temperature pose practical challenges that depend on the chosen modality, variability among individuals, and high mortality rates near the lower and upper threshold temperatures. Different temperature levels can significantly affect larval development of Eurema hecabe. The development of E. hecabe reared on leaves of Lespedeza cuneata was investigated at three temperature regimes (20, 25, and 30℃), a relative humidity of 60%, and a light:dark photoperiod of 14:10 h. The developmental time from larva to adult was 34.3, 20.6, and 17.9 d at temperatures of 20, 25, and 30℃, respectively. Pupal rate was 47.6%, 47.6%, and 61.9% at temperatures of 20, 25, and 30℃, respectively. The developmental threshold temperature estimated from larva to pupae was 8.1℃ with 381.7 degree-days. There is an increasing need for a standardized manual for rearing this butterfly species based on adequate knowledge of its ecology.

• The Journal of the Korea Contents Association
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• v.14 no.1
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• pp.150-157
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• 2014

This thesis intends to grasp the degree of utilization of visual images by understanding the relational properties between picture and letter and considering the children as users, through the analysis of currently published books of English vocabulary for children. Accordingly, the types of picture used in the books of English vocabulary for children, the degree of utilization of picture, combination types of picture and letter, and semantic consistency of picture and letter are reviewed. As a result of analysis, the degree of utilization of picture is high in general, in order of illustration, cartoon, and the mix of illustration and cartoon. In the combination form of picture and letter, the degree of utilization appears in order of picture plus vocabulary, letters without illustration, and pictorial symbol. In particular, the higher semantic consistency of picture and letter, it is effective in learning, however, semantic consistency is low, generally. Pictorial symbol type shows the frequency of the highest combination type in the five groups of higher semantic consistency. In conclusion, the presented types of picture and letter, shown in the currently published books of English vocabulary for children, are similar types by the publishing companies, thus, effective design research should be required based on diverse levels of children.