• Title/Summary/Keyword: sel

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Nutritional Evaluation of Two Promising Varieties of Forage Sorghum in Sheep Fed as Silage

  • Mahanta, S.K.;Pachauri, V.C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.12
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    • pp.1715-1720
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    • 2005
  • Two promising varieties of forage sorghum viz. HD-15 and J. Sel-10 were identified for their higher forage yield (350-400 quintals per hectare) compared to traditional/existing variety, HC-136 at Indian Grassland and Fodder Research Institute, Jhansi. Silage of these three forage sorghum varieties viz., HD-15, J.Sel-10 and HC-136 were prepared in three concrete silos for their nutritional evaluation in sheep. Twelve adult Muzaffarnagari Ewes, divided into three equal groups of 4 each, were offered a particular variety of sorghum silage ad libitum over a period of 30 days followed by a 6 day metabolism trial and a collection of rumen liquor and blood samples. The HD-15 variety of forage sorghum silage contained higher crude protein (CP) than both the J.Sel-10 and HC-136. Average daily dry matter (DM) intake (% of live weight) differed significantly (p<0.05) in sheep that were fed the different varieties of silage, with the maximum amount in HD-15 (2.55) followed by J.Sel-10 (2.49) and HC-136 (1.84). The average apparent digestibility of all the nutrients was low in the sheep that were fed the HC-136 variety of sorghum silage when compared to both HD-15 and J.Sel-10. However, digestibility of organic matter (p<0.05) and crude protein (p<0.01) was significantly low in the HC-136 variety. The average daily nitrogen retention was-0.19, 2.15 and 0.42 g in HC-136, HD-15 and J.Sel-10, respectively which differed significantly (p<0.01). The average digestible crude protein and total digestible nutrient (TDN) contents (%) of the silage varieties were higher in HD-15 (3.14 and 55.3) than HC-136 (0.25 and 58.6) and J.Sel-10 (1.58 and 55.3) varieties. On comparing to the maintenance requirements (ICAR, 1985) for dry matter, crude protein and total digestible nutrients, both the improved varieties (HD-15 and J.Sel-10) almost met the requirements except crude protein, which met only 73.3% of the requirement by J.Sel-10, while the HC-136 variety was unable to meet the requirements. The average rumen pH and total volatile fatty acids concentrations were comparable among the groups. However, concentrations of nitrogen metabolites were higher in the animals fed the HD-15 variety of silage. Varieties of sorghum silage also did not have any influence on the concentration of the blood metabolites. It was concluded that the HD-15 variety of sorghum silage was nutritionally superior to both J.Sel-10 and HC-136 silage.

TID and SEL Testing on PWM-IC Controller of DC/DC Power Buck Converter (DC/DC 강압컨버터의 PWM-IC 제어기의 TID 및 SEL 실험)

  • Lho, Young Hwan;Hwang, Eui Sung;Jeong, Jae-Seong;Han, Changwoon
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.41 no.1
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    • pp.79-84
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    • 2013
  • DC/DC switching power converters are commonly used to generate a regulated DC output voltage with high efficiency. The DC/DC converter is composed of a PWM-IC (pulse width modulation-integrated circuit) controller, a MOSFET (metal-oxide semiconductor field effect transistor), inductor, capacitor, etc. It is shown that the variation of threshold voltage and the offset voltage in the electrical characteristics of PWM-IC increase by radiation effects in TID (Total Ionizing Dose) testing at the low energy ${\gamma}$ rays using $^{60}Co$, and 4 heavy ions applied for SEL (Single Event Latch-up) make the PWM pulse unstable. Also, the output waveform for the given input in the DC/DC converter is observed by the simulation program with integrated circuit emphasis (SPICE). TID testing on PWM-IC is accomplished up to the total dose of 30 krad, and the cross section($cm^2$) versus LET($MeV/mg/cm^2$) in the PWM operation is studied at SEL testing after implementation of the controller board.

A theoretical foundation study for the promotion of a social and emotional competencies of children (초등학생들의 사회·정서적 능력 함양을 위한 이론적 토대 연구)

  • Lee, In Jae
    • The Journal of Korean Philosophical History
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    • no.25
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    • pp.7-40
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    • 2009
  • The aim of this paper is to establish the theoretical foundation on "the integrative study of the character education for the promotion of social and emotional competencies of children.". Based on the social and emotional learning(SEL), this paper is tried to find out the effective ways to develop children's good character. According to SEL, social and emotional competence is the ability to understand, manage, and express the social and emotional aspects of one's life in ways that enable the successful management of life tasks such as learning, forming relationships, solving everyday problems, and adapting to the complex demands of growth and development. And it is also the process of acquiring and effectively applying the knowledge, attitudes, and skills necessary to recognize and manage emotions. Five key competencies such as self-awareness, social awareness, responsible decision making, self-management, relationship skills are taught, practiced, and reinforced through SEL programming. Both the social and emotional learning movement and the character education share in common the idea that much of human character can be modified for the better through learning. While character educators engage in developing civic virtue and moral character in our youth for more compassionate and responsible society, SEL educators engage in educating for a safe, secure, caring society. To effectively teach social and emotional competencies, the teachers themselves must embrace a teaching and learning philosophy that models the attitudes, feelings, and behaviors we aim to teach.

MarSel : LD based tagSNP Selection System for Large-scale SNP Haplotype Dataset (MarSel : 대용량 SNP 일배체형 데이터에 대한 연관불균형기반의 tagSNP 선택 시스템)

  • Kim Sang-Jun;Yeo Sang-Soo;Kim Sung-Kwon
    • The KIPS Transactions:PartA
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    • v.13A no.1 s.98
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    • pp.79-86
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    • 2006
  • Recently the tagSNP selection problem has been researched for reducing the cost of association studies between human's diversities and SNPs. General approach for this problem is that all of SNPs are separated into appropriate blocks and then tagSNPs are chosen in each block. Marsel in this paper is the system that involved the concept of linkage disequilibrium for overcoming the problem that the existing block partitioning approaches have short of biological meanings. In most approaches, the contiguous regions, which recombinations have LD coefficient |D'| and then tagSNP selection step is performed. And MarSel guarantees the minimum tagSNP selection using entropy-based optimal selection algorithm when tagSNPs are chosen in each block, and enables chromosome-level association studies using efficient memory management technique when input is very large-scale dataset that is impossible to be processed in the existing systems.

A survey research on the primary teachers' perception of social emotional learning in Malawi (말라위 초등교사의 사회정서학습에 대한 인식조사 연구)

  • Park, Hwanbo
    • Korean Journal of Comparative Education
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    • v.27 no.4
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    • pp.73-96
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    • 2017
  • This study aims to investigate the primary teachers' perception of social emotional learning (SEL) in Malawi. To achieve this purpose, total 78 questionnaires were gathered from 9 primary schools in rural area. The data was analyzed with independent-samples t-test, correlation analysis, and multiple regression analysis. The results of this study are follows. First, the sub-factors of the Malawian primary teachers' perception of SEL shows that Comfort is 4.10, Commitment is 4.59, and Culture is 3.78. Second, there was a significant difference in the Malawian primary teachers' perception by age, years of teaching, and participation to in-service training about SEL among the individual characteristics. Third, the Malawian primary teachers' degree of implementation of SEL in school was 4.01, and there was a significant difference by years of teaching. Forth, among the sub-factors of teachers' perception of SEL, Comfort had a positive effect on the degree of implementation of SEL. This result implied that the reason why Malawian primary teachers had difficulty in implementing SEL in the school might be not a lack of individual competence but feel uncomfortable with implementation. Therefore, in order to implement SEL in the Malawi school, it is necessary to support teachers so they have confidence and comfort psychologically.

A Study on the Evaluation Unit of a Military Aircraft Noise (군용항공기 소음평가 단위에 관한 연구)

  • Lee, Jun-Ho
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.15 no.5 s.98
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    • pp.550-557
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    • 2005
  • Korean 'Law of Aviation' and 'Test Method of Measuring Noise and Vibration' designate to use WECPNL metric based on $L_{max}$ measurement for the accessment of aircraft noise in Korea. However, time duration of noise event can not be considered in $L_{max}$ metric in principle, compensation on the duration has been utilized. A study was done recently to evaluate appropriate duration compensation for the accessment of military aircraft noise under current metric of WECPNL and $L_{max}$. This study was carried out to evaluate what metric is the most appropriate to express aircraft noise including time duration of single noise event, computing and comparing noise exposure with 1 second noise measurement data of military aircraft in $L_{max}$, $L_{Aeq,\;T}$ and SEL. This study shows SEL is the most appropriate noise metric for the evaluation of noise exposure with time duration such as aircraft noise without compensation. It is suggested to use SEL noise metric instead of $L_{max}$ noise metric with duration compensation for the aircraft noise accessment either military aircraft or civilian aircraft.

Antioxidative Role of Selenoprotein W in Oxidant-Induced Mouse Embryonic Neuronal Cell Death

  • Chung, Youn Wook;Jeong, Daewon;Noh, Ok Jeong;Park, Yong Hwan;Kang, Soo Im;Lee, Min Goo;Lee, Tae-Hoon;Yim, Moon Bin;Kim, Ick Young
    • Molecules and Cells
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    • v.27 no.5
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    • pp.609-613
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    • 2009
  • It has been reported that selenoprotein W (SelW) mRNA is highly expressed in the developing central nerve system of rats, and its expression is maintained until the early postnatal stage. We here found that SelW protein significantly increased in mouse brains of postnatal day 8 and 20 relative to embryonic day 15. This was accompanied by increased expression of SOD1 and SOD2. When the expression of SelW in primary cultured cells derived from embryonic cerebral cortex was knocked down with small interfering RNAs (siRNAs), SelW siRNA-transfected neuronal cells were more sensitive to the oxidative stress induced by treatment of $H_2O_2$ than control cells. TUNEL assays revealed that $H_2O_2$-induced apoptotic cell death occurred at a higher frequency in the siRNA-transfected cells than in the control cells. Taken together, our findings suggest that SelW plays an important role in protection of neurons from oxidative stress during neuronal development.

Effect of Organic Selenium (Sel-Plex) on Thermometabolism, Blood Chemical Composition and Weight Gain in Holstein Suckling Calves

  • Ebrahimi, Marzieh;Towhidi, Armin;Nikkhah, Ali
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.7
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    • pp.984-992
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    • 2009
  • The objective of this study was to determine the effects of milk supplemented with Sel-Plex on thyroid hormones, rectal temperature, plasma glucose and cholesterol concentrations, and body weight in suckling calves. Ten Holstein suckling male calves of approximately 1 month of age were selected and randomly allocated to one of two groups and fed either unsupplemented milk (control) or milk supplemented with 0.3 mg/kg DM Se from Sel-Plex (treated). The animals received treated milk and free choice starter for two months. Dry matter intake for each individual animal was recorded daily throughout the study. The calves were weighed and blood samples were taken weekly. Plasma concentrations of triiodothyronine ($T_{3}$), thyroxin ($T_{4}$) and $T_{3}$-Uptake were determined using radioimmunoassay kits. Plasma cholesterol and glucose concentrations were determined by enzymatic-colorimetric methods. Rectal temperature was recorded at blood sampling time. During the experiment, ambient temperature and relative humidity were recorded at the time of blood sampling and every four hours. Treatment significantly (p<0.01) affected the concentration of $T_{3}$, free $T_{3}$ index ($FT_{3}I$) and ratio of $T_{3}$:$T_{4}$ in plasma. The plasma concentrations of $T_{3}$ in treated calves were 33% higher than in the control. The plasma concentrations of $T_{4}$ (p<0.05), glucose (p<0.01) and cholesterol (p<0.01) were decreased in the treated group. Calves fed Sel-Plex had higher rectal temperature (p<0.01). Plasma free $T_{4}$ index (FT4I) did not differ significantly between the two groups. An increase in body weight was observed (p<0.09) in the treated group. The results indicated that milk fortified with Sel-Plex could increase tissue conversion of $T_{4}$ to $T_{3}$ and therefore improve thermometabolism in suckling calves.

HAUSAT-2 SATELLITE RADIATION ENVIRONMENT ANALYSIS AND SOFTWARE RAMMING CODE EDAC IMPLEMENTATION (HAUSAT-2 위성의 방사능 환경해석 및 소프트웨어 HAMMING CODE EDAC의 구현에 관한 연구)

  • Jung, Ji-Wan;Chang, Young-Keun
    • Journal of Astronomy and Space Sciences
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    • v.22 no.4
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    • pp.537-558
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    • 2005
  • This paper addresses the results of HAUSAT-2 radiation environment and effect analyses, including TID and SEE analyses. Trapped proton and electron, solar proton, galactic cosmic ray models were considered for HAUSAT-2 TID radiation environment analysis. TID was analyzed through total dose-depth curve and the radiation tolerance of TID for HAUSAT-2 components was verified by using DMBP method and sectoring analysis. HAUSAT-2 LET spectrum for heavy ion and proton were also analyzed for SEE investigation. SEE(SEU, SEL) analyses were accomplished for MPC860T2B microprocessor and K6X8008T2B memory. It was estimated that several SEUs may occur without SEL during the HAUSAT-2 mission life(2 years). Software Hamming Code EDAC has been implemented to detect and correct the SEU. In this study, all radiation analyses were conducted by using SPENVIS software.

Social-emotional Learning-Based Music Program Development for Social Inclusion of Children With and Without Disabilities (장애-비장애 아동의 사회적 통합을 위한 사회정서학습(SEL) 기반 음악활동 프로그램 개발)

  • Kim, Eunae
    • Journal of Music and Human Behavior
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    • v.17 no.2
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    • pp.83-100
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    • 2020
  • The purpose of this study was to develop and validate the music program based on social-emotional learning (SEL) to facilitate social inclusion between children with and without disabilities studying together in inclusive classes. For program development, the literature on social inclusion programs and SEL programs were analyzed. Program components were extracted from the literature review and based on the review activities were also selected. The participants were fifth- and sixth-grade elementary school students, including children with intellectual disabilities, and the program was implemented over 12 sessions during the students' creative experiential activity class. The validity of the program was evaluated by teachers and the specified program contents were modified and finalized reflecting the professionals' recommendations. This study supports that SEL-based music program can be effectively applied to inclusive education. The developed music program is also expected to improve the social and emotional capacity of children in inclusive classrooms and to increase the social inclusion between children with and without disabilities.