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SPECTROELECTROCHEMICAL RECOGNITION OF CHEMICAL DOPANTS IN THE INNER SPACE OF CARBON NANOSTRUCTURES
MARTIN KALBÁČ,LADISLAV KAVAN,MARKÉTA ZUKALOVÁ,LOTHAR DUNSCH 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2006 NANO Vol.1 No.3
By in situ Raman spectroelectrochemistry the state of chemical dopants in the inner space of potassium vapor treated single-walled carbon nanotubes (SWCNT), double-walled carbon nanotubes (DWCNT) and C60 fullerene peapods was followed. We show that the spectroelectrochemistry is a method of choice to locate the dopant within carbon nanostructures. The presence of potassium inside the carbon nanostructures was found to be associated with a characteristic response of the tangential (TG) mode of SWCNT to electrochemical doping after treatment of the sample with the water. Our study confirmed the presence of residual potassium in peapods even after treatment with water. On the other hand, potassium was not found in the interior of the water-treated DWCNT and SWCNT.
KALB, JUTARAT,POLYIAM, WETCHASART,PLATA, EIMY RIVAS,BAWINGAN, PAULINA A.,KALB, KLAUS,LÜ,CKING, ROBERT Magnolia Press 2016 Phytotaxa Vol.286 No.2
<P>We provide an updated account on the species of the Cruentotrema-Dyplolabia clade in Graphidaceae subfamily Fissurinoideae, describing three new species: Cruentotrema lirelliforme J. Kalb, Polyiam & K. Kalb, differing from Cruentotrema thailandicum in the lirelliform ascomata; Dyplolabia chumphonensis J. Kalb & K. Kalb, differing from Dyplolabia oryzoides by smaller ascospores; and Dyplolabia dalywaiana Rivas Plata, Bawingan & Lücking, differing from other Dyplolabia species in the angular, erumpent asomata with broadly exposed disc and irregular pseudocolumella. In addition, two further species are recognized as new combinations: Cruentotrema puniceum (Müll. Arg.) J. Kalb & K. Kalb (Bas.: Arthothelium puniceum Müll. Arg.; syn.: Thelotrema rhododiscum Homchant. & Coppins) and Dyplolabia ochrocheila (Vain.) Rivas Plata & Lücking (Bas.: Graphis ochrocheila Vain.). Cruentotrema kurandense is reported as new to Thailand. Altogether, 11 species are now recognized in the two genera, six in Cruentotrema and five in Dyplolabia. In view of the disparate morphology of the two genera, the discovery of two of the three new species is highlighted as phenotypically transitional taxa, so-called ‘missing links’, and the phylogeny of this clade is revised.</P>
박태인(Tae In Park),Carl Jakob Kalbe 한국부패학회 2020 한국부패학회보 Vol.25 No.1
The World Bank estimates that the annual cost of global corruption equals roughly 5% of global GDP, and the problem is most severe in fragile states. Despite the importance and urgency of fighting corruption, few of the fragile states are improving in terms of their Corruption Perception Indices (CPI). However, two countries are striving in the opposite direction; Senegal and Côte d´Ivoire. Under their current leaders, the countries have launched several anti-corruption measures that seems to have borne fruit over the short term. By analysing how the initiatives taken by the current presidents since their entry into office are addressing the factors as brought forward by Rothstein and Teorell (2015) as crucial if a country is to break with systemic corruption, the analysis shows that both countries have taken momentous steps compared to under previous administration to break with systemic corruption. It is illustrated that both countries are launching similar initiatives, yet with seemingly varying devotion. However, despite recent improvements, much is left to be done in both countries if they are to permanently break with systemic corruption, particularly to ensure an impartial and independent judiciary. 세계은행에 따르면 전 세계의 부패로 인한 연간 비용이 글로벌 GDP의 약 5%에 해당하며, 취약국에서 부패 문제가 가장 심각하다. 부패 근절의 중요성과 시급성에도 불구하고 취약국들 중 부패인식지수(CPI)가 개선되고 있는 나라를 찾아보기 힘들다. 이러한 실정에서 아프리카의 세네갈과 코트디부아르는 예외적으로 성과를 보이고 있다. 두 나라의 정치 지도자들은 반부패 이니셔티브의 기치를 올리고 비교적 단기간에 주목할 만한 발전을 거두었다. 본 연구는 제도적 부패에 관한 Rothstein과 Teorell의 이론을 중심으로 세네갈과 코트디부아르의 현 대통령들이 취임 이후 주창했던 반부패 이니셔티브들을 분석한다. 분석 결과 양국이 상당히 유사한 양상을 보이나 분석틀의 rkr 요소에서 성과의 차이가 있음을 알 수 있었다. 또한 두 나라의 노력에도 불구하고, 공정하고 독립적인 사법부를 보장하고 제도적 부패를 타파하기 위해서는 여전히 많은 과제가 남아있음을 확인할 수 있었다.
High Efficiency Binding Aptamers for a Wide Range of Bacterial Sepsis Agents
( Ana Claudia Graziani ),( Maria Isabel Stets ),( Ana Luisa Kalb Lopes ),( Pedro Henrique Caires Schluga ),( Soledad Marton ),( Ieda Mendes Ferreira ),( Antero Silva Ribeiro De Andrade ),( Marco Aurel 한국미생물 · 생명공학회 2017 Journal of microbiology and biotechnology Vol.27 No.4
Sepsis is a major health problem worldwide, with an extremely high rate of morbidity and mortality, partly due to delayed diagnosis during early disease. Currently, sepsis diagnosis requires bacterial culturing of blood samples over several days, whereas PCR-based molecular diagnosis methods are faster but lack sensitivity. The use of biosensors containing nucleic acid aptamers that bind targets with high affinity and specificity could accelerate sepsis diagnosis. Previously, we used the systematic evolution of ligands by exponential enrichment technique to develop the aptamers Antibac1 and Antibac2, targeting the ubiquitous bacterial peptidoglycan. Here, we show that these aptamers bind to four gram-positive and seven gram-negative bacterial sepsis agents with high binding efficiency. Thus, these aptamers could be used in combination as biological recognition elements in the development of biosensors that are an alternative to rapid bacteria detection, since they could provide culture and amplification-free tests for rapid clinical sepsis diagnosis.