식품포장용기의 내분비계 장애물질 국제연구 동향

LEVY MAKE H (사)한국포장협회 2000 包裝界 Vol.81 No.-

Armed Communist Movements in Southeast Asia, edited by Joo - Jock Lim with Vani S.(New York : St. Martin's Press, 1984, pp. ⅩⅤⅢ + 204, $30.00)

Levi, Werner 경남대학교 극동문제연구소 1985 ASIAN PERSPECTIVE Vol.9 No.1

The Effct of Acute Renal Failure on Mortality : A Cohort Analysis

Levy, Elliott M.,Viscoli, Catherine M.,Horwitz, Ralph I. MediMedia Korea 1996 JAMA-Korea Vol.11 No.9

A high-resolution climate record spanning the past 17 000 years recovered from Lake Ohau, South Island, New Zealand

Levy, Richard H.,Dunbar, Gavin B.,Vandergoes, Marcus J.,Howarth, Jamie D.,Kingan, Tony,Pyne, Alex R.,Brotherston, Grant,Clarke, Michael,Dagg, Bob,Hill, Matthew,Kenton, Evan,Little, Steve,Mandeno, Darc Copernicus GmbH 2018 Scientific drilling Vol.24 No.-

<P><p><strong>Abstract.</strong> A new annually resolved sedimentary record of Southern Hemisphere mid-latitude hydroclimate was recovered from Lake Ohau, South Island, New Zealand, in March 2016. The Lake Ohau Climate History (LOCH) project acquired cores from two sites (LOCH-1 and -2) that preserve sequences of laminated mud that accumulated since the lake formed <span class='inline-formula'>∼</span><span class='thinspace'></span>17<span class='thinspace'></span>000 years ago. Cores were recovered using a purpose-built barge and drilling system designed to recover soft sediment from thick sedimentary sequences in lake systems up to 150<span class='thinspace'></span>m deep. This system can be transported in two to three 40<span class='thinspace'></span>ft long shipping containers and is suitable for use in a range of geographic locations. A comprehensive suite of data has been collected from the sedimentary sequence using state-of-the-art analytical equipment and techniques. These new observations of past environmental variability augment the historical instrumental record and are currently being integrated with regional climate and hydrological modelling studies to explore causes of variability in extreme/flood events over the past several millennia.</p> </P>

Thermal Characterization of Alkali Treated Kenaf Fibers and Kenaf-Epoxy Composites

Levi Gardner,Troy Munro,Ezekiel Villarreal,Kurt Harris,Thomas Fronk,Heng Ban 한국섬유공학회 2018 Fibers and polymers Vol.19 No.2

Chemical treatment of natural fibers is a well-defined means of mechanical property improvement in natural fiberreinforced composites. An understanding of mechanical and thermal properties in these media is essential for evaluating heat transfer, thermal degradation, and overall performance of these composites over their product lifetime. However, very little information is available illustrating the effect of such treatment on the thermal properties of kenaf composites. Also, no study to date has reported the thermal conductivity of individual kenaf fibers. This study reports the effects of fiber treatment (in 6 % NaOH) on thermal transport in unidirectionally oriented kenaf-epoxy composites and individual kenaf fibers. The effective thermal conductivities and thermal diffusivities of chemically treated fiber composites show a general increase over untreated fiber composites (0.210 to 0.232 W/m/K at 28 ℃, 0.206 to 0.234 W/m/K at 200 ℃). This improvement may be attributed to improved interfacial contact between the fibers and epoxy matrix shown in microstructural images after chemical treatment. The thermal conductivity of individual fibers was evaluated at room temperature using two techniques. Results from both techniques showed slight increases after chemical treatment (0.58±0.53 to 1.0±0.13 W/m/K and 1.2±0.54 to 1.6±0.28 W/m/K) but lacked statistical significance. Any improvement in surface crystallinity after chemical treatmentdoes not appear to affect overall fiber thermal conductivity. A better understanding of thermal transport in kenaf fibers and composites enables better estimation of the performance of these composites in different applications. Moreover, the thermal conductivities of individual fibers are useful in understanding the fiber’s contribution to conduction in different fiber reinforcement configurations.

Photoluminescence of heavily doped, compensated Si:P, B

Levy, Miguel,Yu, P. Y.,Zhang, Youzhu,Sarachik, M. P. 순천대학교 기초과학연구소 1994 基礎科學硏究誌 Vol.5 No.-

We present a systematic experimental investigation of the photoluminescence of heavily doped, compensated Si:P,B. The spectra broaden as the doping levels are increased, as expected. The spectral weights of the no-phonon peak and the phonon-assisted transitions vary with compensation and with excitation intensity. In contrast with the simple superposition of high-level and low-level spectra found for uncompensated material, increasing the input power for heavily doped, compensated Si produces a strong, continuous shift in energy of the entire spectrum in an essentially rigid way. A logarithmic power dependence found for the two most heavily doped samples is consistent with an exponential band tail. Deviations from this behavior are found for two samples with lower concentration and compensation. We suggest that these deviations may signal the onset of a minimum in the density of states that occurs when the acceptor (donor) band begins to separate from the host valence (conduction) band as the dopant concentration is reduced.

Power dependence of the frequency bias caused by spurious components in the microwave spectrum in atomic fountains

Levi, F.,Shirley, J.H.,Heavner, T.P.,Yu, Dai-Hyuk,Jefferts, S.R. IEEE 2006 and Frequency Control Vol.53 No.9

The presence of spurious spectral components in the microwave excitation may induce frequency shifts in an atomic fountain frequency standard. We discuss how such shifts behave as a function of power variations of the excitation carrier and in the spur-to-carrier ratio. The discussion here is limited to the case of single-sideband spurs, which are generally much more troublesome due to their ability to cause frequency shifts. We find an extremely rich and unintuitive behavior of these frequency shifts. We also discuss how pulsed operation, typical of today's fountain frequency standards, relates to frequency shifts caused by spurs in the microwave spectrum. The conclusion of these investigations is that it is, at best, difficult to use elevated power microwaves in fountain frequency standards to test for the presence of spurs in the microwave spectrum.

Collaborative Computer-Mediated Reading: Documenting the Frequency, Mechanisms, and Outcomes of Peer Help

Levi McNeil,Heshim Song 한국외국어교육학회 2016 Foreign languages education Vol.23 No.2

This study investigated peer-to-peer interaction during collaborative, computer-mediated reading tasks. Fourteen university EFL students in Korea worked in pairs to complete three gapfill tasks. The transcript data from these tasks were analyzed to determine: (1) how often collaboration occurs during collaborative reading tasks, (2) the ways in which peers help each other, and (3) how successful peers are in resolving the problems they collaboratively pursue. The results showed that each of these aspects of interaction varied among sets of pairs. On average, however, the participants collaborated to jointly solve 75% of the problems they encountered. They also used a range of helping behaviors during collaboration. While the participants correctly resolved nearly half of the problems they attempted, half were incorrectly answered or unresolved. Based on these findings, pedagogical implications are offered, in addition to suggestions for future research into collaborative reading tasks.

印度·中共의 國境紛爭 : Current History 1960年 2月號

Levi, Werner 중앙대학교 법학대학 1963 法政論叢 Vol.16 No.-

인도는 과거의 쓰라린 체험이 있기 때문에 「네류」수상은 지극히 "평화지역"(Arca of Peace)을 열망하고 있다. "평화지역"을 달성하고, 유지하기 위해서 때로는 서구우방을 혹독하게 비난하기도 하고, 공상측 적애자들에게 접근하기도 한다. 그러나 아직도 그가 두려워하고 있는것은 서방측의 방위동맹체제가 아니고, 그가 불신하고 있는 아세아민족의 침략성인데 그것은 외교관계에 있어서 그의 성공을 파괴하려고 위협하는 것이다. 「히말라야」국경에서 최근 중공행동에 대하여 인도는 조금도 놀라지 않았다. 1950년간을 중공은 「티벳트」를 해방(liberated)시켰을때, 종래의 「티벳트」국경을 어느정도 확장한다는것은 중공에게 인도의 숙명적이익에 손해를 주는 것이라고 중공에게 경고함으로써 「네루」는 침략의 가능성을 고찰하였다. 「네루」는 그의 인접우방국에 대해서 거의 융화책을 추구하는 반면에 그것을 준비하기 시작하였다. 「아쌈」(Assam)종족들은 시끄러울 정도로 자치권을 요구하였지만 이곳은 인도에게 전략적으로 너무나 중요한 지역이었기때문에 그들의 자치권은 인정하지 않았다.

Beneficial Effects of Flavonoids on Skeletal Muscle Health: A Systematic Review and Meta-Analysis

Levy Munguı´a,Cristian Gonza´lez,Andre´s Portilla,Eduardo Meaney,Francisco Villarreal,Nayelli Na´jera,Guillermo Ceballos 한국식품영양과학회 2022 Journal of medicinal food Vol.25 No.5

Skeletal muscle (SkM) is a highly dynamic tissue that responds to physiological adaptations or pathological conditions, and SkM mitochondria play a major role in bioenergetics, regulation of intracellular calcium homeostasis, pro-oxidant/antioxidant balance, and apoptosis. Flavonoids are polyphenolic compounds with the ability to modulate molecular pathways implicated in the development of mitochondrial myopathy. Therefore, it is pertinent to explore its potential application in conditions such as aging, disuse, denervation, diabetes, obesity, and cancer. To evaluate preclinical and clinical effects of flavonoids on SkM structure and function. We performed a systematic review of published studies, with no date restrictions applied, using PubMed and Scopus. The following search terms were used: “flavonoids” OR “flavanols” OR “flavones” OR “anthocyanidins” OR “flavanones” OR “flavan-3-ols” OR “catechins” OR “epicatechin” OR “(−)-epicatechin” AND “skeletal muscle.” The studies included in this review were preclinical studies, clinical trials, controlled clinical trials, and randomized-controlled trials that investigated the influence of flavonoids on SkM health. Three authors, independently, assessed trials for the review. Any disagreement was resolved by consensus. The use of flavonoids could be a potential tool for the prevention of muscle loss. Their effects on metabolism and on mitochondria function suggest their use as muscle regulators.