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Article ; Online: Hepatobiliary and Pancreatic: Challenges in the diagnosis of hepatic nodules in patients with alcoholic liver cirrhosis.

Cho, M S / Lee, S K / Kwon, J H / Nam, S W

Journal of gastroenterology and hepatology

2023 Volume 38, Issue 11, Page(s) 1867

MeSH term(s)	Humans ; Liver Cirrhosis, Alcoholic/complications ; Liver Cirrhosis, Alcoholic/diagnosis ; Liver Cirrhosis, Alcoholic/pathology ; Liver Cirrhosis/diagnostic imaging ; Liver Cirrhosis/etiology ; Liver Neoplasms/pathology ; Pancreas ; Liver/pathology
Language	English
Publishing date	2023-07-10
Publishing country	Australia
Document type	Journal Article ; Review
ZDB-ID	632882-9
ISSN	1440-1746 ; 0815-9319
ISSN (online)	1440-1746
ISSN	0815-9319
DOI	10.1111/jgh.16277
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Zs.A 2180: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (1.OG) ab Jg. 2022: Lesesaal (EG)
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Article: Rotational thromboelastometry during Cesarean section as a predictive evaluation for the progression of persistent postpartum hemorrhage in parturients with placenta previa: A prospective observational study.

Shin, H-J / Nam, S W / Koo, B-W / Kim, J / Hwang, J-W / Do, S-H / Na, H-S

Heliyon

2023 Volume 9, Issue 2, Page(s) e13563

Abstract: Background: The rotational thromboelastogram (ROTEM) has been used in the management of massive bleeding and transfusion strategy. This study investigated ROTEM parameters measured during Cesarean section as predictors for the progression of persistent ... ...

Abstract	Background: The rotational thromboelastogram (ROTEM) has been used in the management of massive bleeding and transfusion strategy. This study investigated ROTEM parameters measured during Cesarean section as predictors for the progression of persistent postpartum hemorrhage (PPH) in parturients with placenta previa. Methods: This prospective observational study recruited 100 women scheduled for elective Cesarean section after being diagnosed with placenta previa. Recruited women were divided into two groups according to the amount of estimated blood loss: the PPH group (PPH > 1500 ml) vs. the non-PPH group. ROTEM with laboratory tests was performed three times, preoperative, intraoperative, and postoperative time, which were compared between the two groups. Results: The PPH and non-PPH groups included 57 and 41 women, respectively. The area under the receiver-operating characteristic curve of postoperative FIBTEM A5 to detect PPH was 0.76 (95% CI = 0.64 to 0.87; P < 0.001). When postoperative FIBTEM A5 was 9.5, the sensitivity and specificity were 0.74 (95% CI = 0.55 to 0.88) and 0.73 (95% CI = 0.57 to 0.86), respectively. When subgrouping the PPH group based on the postoperative FIBTEM A5 value of 9.5, intraoperative cEBL was similar between the two subgroups; however, postoperative RBC was transfused more in the subgroup with FIBTEM A5 < 9.5 than the subgroup with FIBTEM A5 ≥ 9.5 (7.4 ± 3.0 vs 5.1 ± 2.3 units, respectively; P = 0.003). Conclusion: Postoperative FIBTEM A5, with appropriate selection of the cut-off value, can be a biomarker for more prolonged PPH and massive transfusion following Cesarean section by placenta previa.
Language	English
Publishing date	2023-02-08
Publishing country	England
Document type	Journal Article
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2023.e13563
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Article ; Online: A superconducting nanowire single-photon camera with 400,000 pixels.

Oripov, B G / Rampini, D S / Allmaras, J / Shaw, M D / Nam, S W / Korzh, B / McCaughan, A N

Nature

2023 Volume 622, Issue 7984, Page(s) 730–734

Abstract: For the past 50 years, superconducting detectors have offered exceptional sensitivity and speed for detecting faint electromagnetic signals in a wide range of applications. These detectors operate at very low temperatures and generate a minimum of excess ...

Abstract	For the past 50 years, superconducting detectors have offered exceptional sensitivity and speed for detecting faint electromagnetic signals in a wide range of applications. These detectors operate at very low temperatures and generate a minimum of excess noise, making them ideal for testing the non-local nature of reality
Language	English
Publishing date	2023-10-25
Publishing country	England
Document type	Journal Article
ZDB-ID	120714-3
ISSN	1476-4687 ; 0028-0836
ISSN (online)	1476-4687
ISSN	0028-0836
DOI	10.1038/s41586-023-06550-2
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Article ; Online: Rotational thromboelastometry during Cesarean section as a predictive evaluation for the progression of persistent postpartum hemorrhage in parturients with placenta previa: A prospective observational study

Shin, H.-J. / Nam, S.W. / Koo, B.-W. / Kim, J. / Hwang, J.-W. / Do, S.-H. / Na, H.-S.

Heliyon. 2023 Feb. 08, p.e13563-

2023

Abstract: The rotational thromboelastogram (ROTEM) has been used in the management of massive bleeding and transfusion strategy. This study investigated ROTEM parameters measured during Cesarean section as predictors for the progression of persistent postpartum ... ...

Abstract	The rotational thromboelastogram (ROTEM) has been used in the management of massive bleeding and transfusion strategy. This study investigated ROTEM parameters measured during Cesarean section as predictors for the progression of persistent postpartum hemorrhage (PPH) in parturients with placenta previa. This prospective observational study recruited 100 women scheduled for elective Cesarean section after being diagnosed with placenta previa. Recruited women were divided into two groups according to the amount of estimated blood loss: the PPH group (PPH > 1500 ml) vs. the non-PPH group. ROTEM with laboratory tests was performed three times, preoperative, intraoperative, and postoperative time, which were compared between the two groups. The PPH and non-PPH groups included 57 and 41 women, respectively. The area under the receiver-operating characteristic curve of postoperative FIBTEM A5 to detect PPH was 0.76 (95% CI = 0.64 to 0.87; P < 0.001). When postoperative FIBTEM A5 was 9.5, the sensitivity and specificity were 0.74 (95% CI = 0.55 to 0.88) and 0.73 (95% CI = 0.57 to 0.86), respectively. When subgrouping the PPH group based on the postoperative FIBTEM A5 value of 9.5, intraoperative cEBL was similar between the two subgroups; however, postoperative RBC was transfused more in the subgroup with FIBTEM A5 < 9.5 than the subgroup with FIBTEM A5 ≥ 9.5 (7.4 ± 3.0 vs 5.1 ± 2.3 units, respectively; P = 0.003). Postoperative FIBTEM A5, with appropriate selection of the cut-off value, can be a biomarker for more prolonged PPH and massive transfusion following Cesarean section by placenta previa.
Keywords	biomarkers ; blood ; cesarean section ; hemorrhage ; observational studies ; placenta ; Placenta previa ; Postpartum hemorrhage ; Rotational thromboelastogram
Language	English
Dates of publication	2023-0208
Publishing place	Elsevier Ltd
Document type	Article ; Online
Note	Pre-press version ; Use and reproduction
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2023.e13563
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: A high-density customizable microwave vacuum feedthrough for cryogenic applications.

McCaughan, A N / Gammell, J I / Oh, D M / Nam, S W

The Review of scientific instruments

2020 Volume 91, Issue 1, Page(s) 15114

Abstract: We have designed, constructed, and tested an electrical vacuum feedthrough that can carry a large number of microwave signal lines, has high vacuum compatibility, and is highly customizable. We found that it had a leak rate of approximately ... ...

Abstract	We have designed, constructed, and tested an electrical vacuum feedthrough that can carry a large number of microwave signal lines, has high vacuum compatibility, and is highly customizable. We found that it had a leak rate of approximately 10
Language	English
Publishing date	2020-02-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	209865-9
ISSN	1089-7623 ; 0034-6748
ISSN (online)	1089-7623
ISSN	0034-6748
DOI	10.1063/1.5133055
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Article: Modeling Bloch oscillations in nanoscale Josephson junctions.

Vora, Heli / Kautz, R L / Nam, S W / Aumentado, J

Physical review. B

2017 Volume 96, Issue 5

Abstract: Bloch oscillations in nanoscale Josephson junctions with a Coulomb charging energy comparable to the Josephson coupling energy are explored within the context of a model previously considered by Geigenmüller and Schön that includes Zener tunneling and ... ...

Abstract	Bloch oscillations in nanoscale Josephson junctions with a Coulomb charging energy comparable to the Josephson coupling energy are explored within the context of a model previously considered by Geigenmüller and Schön that includes Zener tunneling and treats quasiparticle tunneling as an explicit shot-noise process. The dynamics of the junction quasicharge are investigated numerically using both Monte Carlo and ensemble approaches to calculate voltage-current characteristics in the presence of microwaves. We examine in detail the origin of harmonic and subharmonic Bloch steps at dc biases
Language	English
Publishing date	2017-08-07
Publishing country	United States
Document type	Journal Article
ZDB-ID	209770-9
ISSN	1095-3795 ; 1550-235X ; 2469-9950 ; 1098-0121 ; 0163-1829 ; 0556-2805
ISSN (online)	1095-3795 ; 1550-235X
ISSN	2469-9950 ; 1098-0121 ; 0163-1829 ; 0556-2805
DOI	10.1103/PhysRevB.96.054505
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Article: Thermoelectric properties of Ca₂.₈Cu₀.₂Co₄O₉ ceramics fabricated by solution combustion method

Park, K / Nam, S.W

Current applied physics. 2011 May, v. 11, no. 3

2011

Abstract: Nano-sized Ca₂.₈Cu₀.₂Co₄O₉ powders were synthesized by the solution combustion process, using five different fuels, i.e., aspartic acid, alanine, glutamic acid, glycine, and urea. The combustion process lowered both the calcination and sintering ... ...

Abstract	Nano-sized Ca₂.₈Cu₀.₂Co₄O₉ powders were synthesized by the solution combustion process, using five different fuels, i.e., aspartic acid, alanine, glutamic acid, glycine, and urea. The combustion process lowered both the calcination and sintering temperatures. The sintered Ca₂.₈Cu₀.₂Co₄O₉ consisted of plate-like grains that were favorable for high energy conversion efficiency. In the comparative study of various different fuels, aspartic acid-processed Ca₂.₈Cu₀.₂Co₄O₉ showed an extremely high Seebeck coefficient, thus resulting in an enhanced power factor. The highest power factor value (8.05 × 10⁻⁴ Wm⁻¹ K⁻²) was attained for the aspartic acid-processed sample at 800 °C.
Keywords	alanine ; aspartic acid ; ceramics ; combustion ; energy conversion ; fuels ; glutamic acid ; powders ; temperature ; urea
Language	English
Dates of publication	2011-05
Size	p. 939-944.
Publishing place	Elsevier B.V.
Document type	Article
ISSN	1567-1739
DOI	10.1016/j.cap.2010.12.019
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Book ; Online: PHIDL

McCaughan, A. N. / Tait, A. M. / Buckley, S. M. / Oh, D. M. / Chiles, J. T. / Shainline, J. M. / Nam, S. W.

Python CAD layout and geometry creation for nanolithography

2021

Abstract: Computer-aided design (CAD) has become a critical element in the creation of nanopatterned structures and devices. In particular, with the increased adoption of easy-to-learn programming languages like Python there has been a significant rise in the ... ...

Abstract	Computer-aided design (CAD) has become a critical element in the creation of nanopatterned structures and devices. In particular, with the increased adoption of easy-to-learn programming languages like Python there has been a significant rise in the amount of lithographic geometries generated through scripting and programming. However, there are currently unaddressed gaps in usability for open-source CAD tools -- especially those in the GDSII design space -- that prevent wider adoption by scientists and students who might otherwise benefit from scripted design. For example, constructing relations between adjacent geometries is often much more difficult than necessary -- spacing a resonator structure a few micrometers from a readout structure often requires manually-coding the placement arithmetic. While inconveniences like this can be overcome by writing custom functions, they are often significant barriers to entry for new users or those less familiar with programming. To help streamline the design process and reduce barrier to entry for scripting designs, we have developed PHIDL, an open-source GDSII-based CAD tool for Python 2 and 3.
Keywords	Condensed Matter - Superconductivity ; Computer Science - Graphics
Subject code	005
Publishing date	2021-03-01
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: State Readout of a Trapped Ion Qubit Using a Trap-Integrated Superconducting Photon Detector.

Todaro, S L / Verma, V B / McCormick, K C / Allcock, D T C / Mirin, R P / Wineland, D J / Nam, S W / Wilson, A C / Leibfried, D / Slichter, D H

Physical review letters

2021 Volume 126, Issue 1, Page(s) 10501

Abstract: We report high-fidelity state readout of a trapped ion qubit using a trap-integrated photon detector. We determine the hyperfine qubit state of a single ^{9}Be^{+} ion held in a surface-electrode rf ion trap by counting state-dependent ion fluorescence ... ...

Abstract	We report high-fidelity state readout of a trapped ion qubit using a trap-integrated photon detector. We determine the hyperfine qubit state of a single ^{9}Be^{+} ion held in a surface-electrode rf ion trap by counting state-dependent ion fluorescence photons with a superconducting nanowire single-photon detector fabricated into the trap structure. The average readout fidelity is 0.9991(1), with a mean readout duration of 46 μs, and is limited by the polarization impurity of the readout laser beam and by off-resonant optical pumping. Because there are no intervening optical elements between the ion and the detector, we can use the ion fluorescence as a self-calibrated photon source to determine the detector quantum efficiency and its dependence on photon incidence angle and polarization.
Language	English
Publishing date	2021-01-22
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.126.010501
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Article: Application of a heat balance model to design a fog cooling system for greenhouses

Nam, S.W / Kim, Y.S

Acta horticulturae. 2011 Apr., , no. 8931

2011

Abstract: A certain system to overcome high temperature should be introduced for the stable year round cultivation in greenhouses. There are efficient methods to overcome high temperatures in greenhouses such as the ventilation system with shading screen, fan and ... ...

Abstract	A certain system to overcome high temperature should be introduced for the stable year round cultivation in greenhouses. There are efficient methods to overcome high temperatures in greenhouses such as the ventilation system with shading screen, fan and pad cooling system, and fog cooling system. In the evaporative cooled greenhouse, the heat balance of a fog system is different from that of fan and pad system, but there is no design standard for the fog cooling system separately. This study was carried out to find a means to determine the capacity of ventilation and fog cooling systems. Heat balance equations for the fog cooling system were established and verified by experimental results in a greenhouse. The calculated ventilation rates from heat balance equations showed good agreement with the measured ones. The evapotranspiration coefficient (E value) was the most important parameter affecting the required ventilation rate among input parameters, with the exception of weather data. As the E value increased 1%, the required ventilation rate decreased 1.3%. Therefore the data of E value should be given by various experiments and then design standards and selection guidelines should be provided. The simulation results for the same design conditions showed that the required air exchange rate and evaporating water of the fog cooling system were 5.1 to 7.7% and 6.8 to 9.3% less than those of the fan and pad cooling system, respectively.
Keywords	air ; cooling ; cooling systems ; equations ; evaporation ; evapotranspiration ; experimental design ; greenhouses ; guidelines ; heat ; meteorological data ; models ; temperature
Language	English
Size	p. 251-257.
Publishing place	International Society for Horticultural Science
Document type	Article
Note	Paper presented at the International Symposium on High Technology for Greenhouse Systems - GreenSys2009, Volume 1, held June 14-19-2009, Quebec City, Canada.
ISSN	0567-7572
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