http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Karina Karina,Krista Ekaputri,Johannes Albert Biben,Pritha Hadi,Hubert Andrew,Patricia Marcellina Sadikin 대한성형외과학회 2022 Archives of Plastic Surgery Vol.49 No.3
Although modern medicine hasmade great strides in the management of burn injuries, associated complications such as pain, infection, dyspigmentation, and scarring have yet to be fully dealt with. Although skin grafting and meshing are routinely performed on burn patients, this method poses a risk for adverse effects. Activated autologous platelet-rich plasma (aaPRP), which is increasingly used in the field of plastic surgery, contains growth factors beneficial for wound regeneration. Seven cases of burns with varying severity and conditions that were treated with intralesional subcutaneous injection and intravenous aaPRP are presented and discussed herein. This case series indicates that subcutaneous and intravenous aaPRP is a safe procedure with the potential to be an alternative when skin grafting cannot be done or as an adjunct treatment to skin grafting.
Karina V.Korostelina 한양대학교 아태지역연구센터 2013 Journal of Eurasian Studies Vol.4 No.1
This paper analyzes the coercive and legitimate forms of power in Ukraine. It describes the crisis of legitimacy in Ukraine as a contradiction between a blatantly cruel system of capitalism dominated by a few oligarchs, and the lingering remnants of a Soviet mentality. Two strategies are used by the Government to stoke the crisis. First, increased identification with ethnic or regional groups are instrumentally used by the Government to take attention from economic and class issues. Second, the incorporation of a Soviet meaning of power into the new national identity and presentation of it as core norms, believes, and values of the people of Ukraine competes with alternative Ukrainian identity concepts. The paper analyzes five main features of the Soviet meanings of power – political, social, and economic paternalism, perception of power as source of profit and violence, and the dual reality of power with the gap between official narratives of power and a real life. The process of incorporation of the Soviet concept of power into national identity is facilitated by the process of national identity formation that helped to preserve the Soviet perception of power, because of the absence of a new ideology, a lack of critical assessment of the Soviet past, an absence of the vision of outcome, an embryonic culture of democracy, and contributions of all the presidents to the preservation of the Soviet meaning of power. People justify the system as legitimate and fair for many reasons: out of historic habit and deemed moral obligations, self-interests and/or a fear of sanctions, identification with the ruler, zones of indifference, an absence of will and self-confidence, desire to support a strong leader based on ambiguity intolerance, hierarchy – enhancing ideologies, and a general tolerance of injustice. The obedience of subjects is connected with the strength of will of the subjects and the social structures of the society. In Ukraine, the society is not united, not organized, has no identity of “us”, no civic accountability, nor even any real interest in such matters. Civil society levels are very low, as reflected by limited opportunities for civic responsibility and participation and few demands from the society.
Improving the Viability of Freeze-dried Probiotics Using a Lysine-based Rehydration Mixture
( Karina Arellano ),( Haryung Park ),( Bobae Kim ),( Subin Yeo ),( Hyunjoo Jo ),( Jin-hak Kim ),( Yosep Ji ),( Wilhelm H. Holzapfel ) 한국미생물생명공학회(구 한국산업미생물학회) 2021 한국미생물·생명공학회지 Vol.49 No.2
The probiotic market is constantly continuing to grow, concomitantly with a widening in the range and diversity of probiotic products. Probiotics are defined as live microorganisms that provide a benefit to the host when consumed at a proper dose; the viability of a probiotic is therefore of crucial importance for its efficacy. Many products undergo lyophilization for maintaining their shelf-life. Unfortunately, this procedure may damage the integrity of the cells due to stress conditions during both the freezing and (vacuum-) drying process, thereby impacting their functionality. We propose a lysine-based mixture for rehydration of freeze-dried probiotics for improving their viability during in vitro simulated gastric and duodenum stress conditions. Measurement of the zeta potential served as an indicator of cell integrity and efficacy of this mixture, while functionality was estimated by adhesion to a human enterocyte-like Caco-2 cell-line. The freeze-dried bacteria exhibited a significantly different zeta potential compared to fresh cultures; however, this condition could be restored by rehydration with the lysine mixture. Recovery of the surface charge was found to influence adhesion ability to the Caco-2 cell-line. The optimum lysine concentration of the formulation, designated “Zeta-bio”, was found to be 0.03 M for improving the viability of Lactiplantibacillus plantarum Lp-115 by up to 13.86% and a 7-strain mixture (400B) to 41.99% compared to the control rehydrated with distilled water. In addition, the lysine Zeta-bio formulation notably increased the adherence ability of lyophilized Lp-115 to the Caco-2 cell-line after subjected to the in vitro stress conditions of the simulated gastrointestinal tract passage.
Synthesis and characterization of sol-gel derived ZrB2-ZrC compounds
Karina S. Campos 한양대학교 세라믹연구소 2014 Journal of Ceramic Processing Research Vol.15 No.6
In this work ZrB2-ZrC compounds were prepared by sol-gel process. These materials were examined by X-ray diffraction (XRD), thermogravimetric (TG) analysis, laser granulometry, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and nitrogen adsorption tests. Thermodynamic calculations were carried out using the FactSage® thermochemical software and databases. XRD revealed that ZrB2 and ZrC are the major phases present in the materials obtained in this study. It was observed that the relative amount of ZrB2 and ZrC in these samples can be tailored by controlling the concentration of H3BO3 in the starting solution. On one hand, laser granulometry and SEM tests revealed that the ZrB2- ZrC compounds prepared in this work show a coarse particle size distribution. On the other hand, they exhibited remarkable specific surface areas (about 150 m2 /g).
Dietary Biotin Supplementation Impairs Testis Morphology and Sperm Quality
Karina Pasten-Hidalgo,Leticia Riveron-Negrete,Gloria Sicilia-Argumedo,Gustavo Canul-Medina,Tonatiuh Salazar-Anzures,Miguel Tapia-Rodrıguez,Enrique O. Hernandez-Gonzalez,Ana Lilia Roa-Espitia,Carlos Ce 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.5
Supplements containing pharmacological concentrations of biotin are commercially available over the counter. Classical toxicity studies have considered biotin administration as harmless; however, recent investigations have shown that biotin supplementation modifies tissue morphology without changes in toxicity markers, raising concerns about the consequences of morphological changes on tissues' functions and the safety of pharmacological concentrations of the vitamin. Testes are very sensitive to toxicants, and testicular histology is a reliable method to study its function. In this work, we investigated the effects of dietary biotin supplementation on testis morphology and spermatogenesis function using an experimental model, in which we have not observed unfavorable effects on other tissue functions or toxicity markers. Male BALB/cAnNHsd mice were fed a control or a biotin-supplemented diet (1.76 or 97.7 mg biotin/kg diet) for 8 weeks. Compared to the control group, the biotin-supplemented mice presented remarkable testis morphology changes, including increased spermatogonia layers; the cellular mechanism involved is related to increased proliferation. Sperm count and serum testosterone levels were not affected, but spermatozoa motility and morphology were significantly impaired in the biotin-supplemented mice. These results caution against the use of supplements with high concentrations of biotin and indicate that biotin's pharmacological effects on morphology need to be considered in toxicological studies.
Karina Uribe Hernández,Tzayhrí Gallardo Velázquez,Guillermo Osorio Revilla,Norma Almaraz Abarca,Maylet Hernández Martínez 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.4
Chemometric models using mid-infrared (MID-FTIR) spectroscopy were developed for detection and quantification of oxytetracycline and sulfathiazole contamination in honey samples. Low standard error of calibration (SEC) and prediction (SEP) values were achieved using a partial least squares algorithm (SEC= 1.02 and SEP=1.39 for oxytetracycline and SEC=1.24 and SEP=1.79 for sulfathiazole). Chemometric model-predicted concentrations of antibiotics were compared with ELISA results with coefficient of determination R2=0.8577 for oxytetracycline and R2=0.8216 for sulfathiazole. Classification of antibiotic contaminated honey samples and uncontaminated samples was carried out using Soft Independent Modeling Class Analogy analysis with a 100% correct classification rate with interclass distances in the range of 6.93-13.3. MID-FTIR chemometric models developed for detection and quantification of oxitetracycline and sulfathiazole in honey samples have been demonstrated.
Karina Jaikel Zavala,Jin Geun Kwon,한현호,Eun Key Kim,Jin Sup Eom 대한성형외과학회 2019 Archives of Plastic Surgery Vol.46 No.5
The Goldilocks technique for breast reconstruction utilizes redundant mastectomy flap tissue to construct a breast mound. This technique is suitable for women who decline, or are poor candidates for, traditional postmastectomy reconstruction. Moreover, this technique can be applied in secondary operations after the failure of initial reconstruction efforts. A 74-yearold patient underwent the Goldilocks procedure after reconstruction failure with an implant and acellular dermal matrix. At her 6-month follow-up, the cosmetic outcome of the procedure was satisfactory, and no complications were noted. Therefore, the Goldilocks procedure is a safe alternative to reconstruct breast mounds following reconstruction failure, especially in obese patients.