Economic Barriers to the Use of Oral Rehydration Therapy : A Case Report

Meyers, Alan,Siegel, Benjamin,Vinci, Robert MediMedia Korea 1991 JAMA-Korea Vol.6 No.9

Utilization of Grawfish Pigment and Other Fishery Processing By-Products

Meyers, S.P.,No, H.K. 대구효성가톨릭대학교 식품과학연구소 1995 식품과학지 Vol.7 No.-

Concepts in fishery processing increasingly involve utilization of various by-products, traditionally identified as waste with minimal economic value. Among these are fish frames, whole crustacean meals for use in crustacean aquaculture, and the biopolymers, chitin and chitosan. More recent studies have focused on a variety of value-added uses for such processing by-products. Other investigations have included recovery of protein hydrolysates, soluble proteins and amino acids, and seafood flavor compounds. Extraction of the carotenoid astaxanthin from Louisiana crawfish processing wastes, and food-grade crabmeat and flavorants from blue crab processing, are discussed as examples of integrated approaches toward total by-product recovery.

The protein and neutral lipid composition of lipid droplets isolated from the fission yeast, Schizosaccharomyces pombe

Alex Meyers,Karuna Chourey,Taylor M. Weiskittel,Susan Pfiffner,John R. Dunlap,Robert L. Hettich,Paul Dalhaimer 한국미생물학회 2017 The journal of microbiology Vol.55 No.2

Lipid droplets consist of a core of neutral lipids surrounded by a phospholipid monolayer with bound proteins. Much of the information on lipid droplet function comes from proteomic and lipodomic studies that identify the components of droplets isolated from organisms throughout the phylogenetic tree. Here, we add to that important inventory by reporting lipid droplet factors from the fission yeast, Schizosaccharomyces pombe. Unique to this study was the fact that cells were cultured in three different environments: 1) late log growth phase in glucose-based media, 2) stationary phase in glucosebased media, and 3) late log growth phase in media containing oleic acid. We confirmed colocalization of major factors with lipid droplets using live-cell fluorescent microscopy. We also analyzed droplets from each of the three conditions for sterol ester (SE) and triacylglycerol (TAG) content, along with their respective fatty acid compositions. We identified a previously undiscovered lipid droplet protein, Vip1p, which affects droplet size distribution. The results provide further insight into the workings of these ubiquitous organelles.

독점금지법 : 지적 재산권 강제 라이선싱

Christopher J. Meyers,정재훈 서울대학교 기술과법센터 2006 Law & technology Vol.2 No.6

Reputation Matters: Evidence From the Korean War

John Speed Meyers 서울대학교 국제학연구소 2015 Journal of International and Area Studies Vol.22 No.2

Both sides in the Korean War calculated their adversary’s military power and diplomatic resolve by studying their enemy’s past behavior in addition to their enemy’s current military posture and diplomatic actions. Past decisions to yield provided adversaries with private information about how leaders perceived their own state’s military power and resolve. Enemies judged a state that recently yielded as militarily weak or diplomatically indifferent. The preponderance of evidence suggests that leaders should protect their reputation.

Developments and Trends in Fisheries Processing : Value - Added Product Development and Total Resource Utilization

( Samuel P Meyers ) 한국수산학회 1994 추계학술발표회 Vol.- No.-

Developments and Trends in Fisheries Processing : Value - Added Product Development and Total Resource Utilization

Samuel P . Meyers 한국수산과학회 1994 한국수산과학회지 Vol.27 No.6

Changing concepts in fishery science increasingly are recognizing depletion of traditional stocks, utilization of alternate(non-traditional) species, demand for high quality products, and a total resource utilization approach. Innovative practices are occurring in fisheries processing wherein solid and liquid discharges are no longer treated as $quot;waste,$quot; but rather as valuable feedstocks for recovery of a variety of value-added ($quot;value enhanced$quot; ) byproducts. Among these are protein hydrolysates, soluble proteins and amino acids, proteolytic enzymes, flavor and flavor extracts, pigments, and biopolymers such as chitosan. Properties and applications of this deacetylated derivative of chitin are noted. Crustacean processing by-products are discussed in terms of their serving as materials for generation of natural flavors and flavor extracts, and products such as fish sauces using contemporary enzymatic techniques. Various food and feed applications of fisheries processing byproducts are illustrated with increased usage seen in formulated diets for an expanding aquaculture market. Examples are given of aquaculture becoming increasingly significant in global fisheries resource projections. Critical issues in the international seafood industry include those of seafood quality, processing quality assurance (HACCP), and recognition of the nutritional and health-related properties of fisheries products. A variety of current seafood processing research is discussed, including that of alternate fish species for surimi manufacture and formulation of value-added seafood products from crawfish and blue crab processing operations. Increasing emphasis is being placed on international aspects of global fisheries and the role of aquaculture in such considerations. Coupled with the need for the aquatic food industry to develop innovative seafood products for the 21st century is that of total resource utilization. Contemporary approaches in seafood processing recognize the need to discard the traditional concept of processing $quot;waste$quot; and adapt a more realistic, and economically sound, approach of usable by-products for food and feed application. For example, in a period of declining natural fishery resources it is no longer feasible to discard fish frames following fillet removal when a significant amount of residual valuable flesh is present that can be readily recovered and properly utilized in a variety of mincebased formulated seafood products.

술잔을 돌리다니요?

마이클마이어즈(Michael J. Meyers) 샘터사 1998 월간 샘터 Vol.29 No.12

Effect of Physical and Chemical Treatments on Chitosan Viscosity

No, Hong Kyoon,Kim, Soon Dong,Kim, Dong Seok,Kim, So Ja,Samuel P. Meyers 한국키틴키토산학회 1999 한국키틴키토산학회지 Vol.4 No.4

물리적, 화학적 처리가 키토산의 점도에 미치는 영향을 조사하였다. 키토산의 점도는 물리적(분쇄, 가열, 고온가압,초음파) 그리고 화학적(오존) 처리에 의해 크게 영향을 받았으며, 처리 시간과 온도가 증가함에 따라 감소하였다. 그러나 키토산 용액을 -40℃ 에서 9일간 저장하였을 때 점도 변화는 나타나지 않았다. 키토산 용액을 4℃와 23℃에서 61일간 저장하였을 때 점도는 각각 23%와 64% 감소하였다. Effects of physical and chemical treatments on chitosan viscosity were investigated. Chitosan viscosity was considerably affected by physical (grinding, heating, autoclaving, ultrasonication) and chemical (ozone) treatments, except for freezing, and decreased with an increase in treatment time and temperature. Freezing at -40℃ for 9 days did not affect the viscosity of chitosan solution. The chitosan solution stored at 4 and 23℃ for 61 days decreased in viscosity by 23 and 64%, respectively. This suggests that chitosan solution stored at 4t is relatively stable from a viscosity point of view.

Piezoelectric nanocomposite sensors assembled using zinc oxide nanoparticles and poly(vinylidene fluoride)

Dodds, John S.,Meyers, Frederick N.,Loh, Kenneth J. Techno-Press 2013 Smart Structures and Systems, An International Jou Vol.12 No.1

Structural health monitoring (SHM) is vital for detecting the onset of damage and for preventing catastrophic failure of civil infrastructure systems. In particular, piezoelectric transducers have the ability to excite and actively interrogate structures (e.g., using surface waves) while measuring their response for sensing and damage detection. In fact, piezoelectric transducers such as lead zirconate titanate (PZT) and poly(vinylidene fluoride) (PVDF) have been used for various laboratory/field tests and possess significant advantages as compared to visual inspection and vibration-based methods, to name a few. However, PZTs are inherently brittle, and PVDF films do not possess high piezoelectricity, thereby limiting each of these devices to certain specific applications. The objective of this study is to design, characterize, and validate piezoelectric nanocomposites consisting of zinc oxide (ZnO) nanoparticles assembled in a PVDF copolymer matrix for sensing and SHM applications. These films provide greater mechanical flexibility as compared to PZTs, yet possess enhanced piezoelectricity as compared to pristine PVDF copolymers. This study started with spin coating dispersed ZnO- and PVDF-TrFE-based solutions to fabricate the piezoelectric nanocomposites. The concentration of ZnO nanoparticles was varied from 0 to 20 wt.% (in 5 % increments) to determine their influence on bulk film piezoelectricity. Second, their electric polarization responses were obtained for quantifying thin film remnant polarization, which is directly correlated to piezoelectricity. Based on these results, the films were poled (at 50 $MV-m^{-1}$) to permanently align their electrical domains and to enhance their bulk film piezoelectricity. Then, a series of hammer impact tests were conducted, and the voltage generated by poled ZnO-based thin films was compared to commercially poled PVDF copolymer thin films. The hammer impact tests showed comparable results between the prototype and commercial samples, and increasing ZnO content provided enhanced piezoelectric performance. Lastly, the films were further validated for sensing using different energy levels of hammer impact, different distances between the impact locations and the film electrodes, and cantilever free vibration testing for dynamic strain sensing.