著者

Muhammad Ayyaz Ul Haq Muhammad Rashid Ian C. Gilchrist Olivier Bertrand Chun Shing Kwok Chun Wai Wong Hossam M. Mansour Yasser Baghdaddy James Nolan Maarten A.H. van Leeuwen Mamas A. Mamas

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-18-0389, (Released:2018-09-22)

参考文献数

43

被引用文献数

13

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Background: We systematically reviewed the available literature on limb dysfunction after transradial access (TRA) or transfemoral access (TFA) cardiac catheterization. Methods and Results: MEDLINE and EMBASE were searched for studies evaluating any transradial or transfemoral procedures and limb function outcomes. Data were extracted and results were narratively synthesized with similar treatment arms. The TRA group included 15 studies with 3,616 participants and of these 3 reported nerve damage with a combined incidence of 0.16% and 4 reported sensory loss, tingling and numbness with a pooled incidence of 1.61%. Pain after TRA was the most common form of limb dysfunction (7.77%) reported in 3 studies. The incidence of hand dysfunction defined as disability, grip strength change, power loss or neuropathy was low at 0.49%. Although radial artery occlusion (RAO) was not a primary endpoint for this review, it was observed in 3.57% of the participants in a total of 8 studies included. The TFA group included 4 studies with 15,903,894 participants; the rates of peripheral neuropathy were 0.004%, sensory neuropathy caused by local groin injury and retroperitoneal hematomas were 0.04% and 0.17%, respectively, and motor deficit caused by femoral and obturator nerve damage was 0.13%. Conclusions: Limb dysfunction post cardiac catheterization is rare, but patients may have nonspecific sensory and motor complaints that resolve over a period of time.

著者

Mark Beattie Oliver A. H. Jones

出版者

The Mass Spectrometry Society of Japan

雑誌

Mass Spectrometry (ISSN:2187137X)

巻号頁・発行日

vol.12, no.1, pp.A0118, 2023-04-06 (Released:2023-04-06)

参考文献数

40

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Mass spectrometry is a well-established analytical technique for studying the masses of atoms, molecules, or fragments of molecules. One of the key metrics of mass spectrometers is the limit of detection e.g., the minimum amount of signal from an analyte that can be reliably distinguished from noise. Detection limits have improved greatly over the last 30–40 years to the point that nanogram per litre and even picogram per litre detections are commonly reported. There is however, a difference between detection limits obtained with a single, pure compound in a pure solvent and those obtained from real life samples/matrixes. Determining a practical detection limit for mass spectrometry is difficult because it depends on multiple factors, such as the compound under test, the matrix, data processing methods and spectrometer type. Here we show the improvements in reported limits of detection on mass spectrometers over time using industry and literature data. The limit of detection for glycine and dichlorodiphenyltrichloroethane were taken from multiple published articles spanning a period of 45 years. The limits of detection were plotted against the article’s year of publication to assess whether the trend in improvement in sensitivity resembles Moore’s Law of computing (essentially doubling every two years). The results show that advancements in detection limits in mass spectrometry are close to, but not quite at a rate equivalent to Moore’s Law and the improvements in detection limits reported from industry seem to be greater than those reported in the academic literature.

著者

A. H. M. Enamul Kabir Masahiko Sekine Tsuyoshi Imai Koichi Yamamoto

出版者

Japan Society on Water Environment

雑誌

Journal of Water and Environment Technology (ISSN:13482165)

巻号頁・発行日

vol.18, no.3, pp.175-194, 2020 (Released:2020-06-10)

参考文献数

103

被引用文献数

9

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Marine microplastics pollution has been an emerging global threat. This study investigated microplastics pollution in the ‘Seto Inland Sea (SIS)’ and ‘Sea of Japan (SJ)’ surrounded Yamaguchi prefecture areas in Japan. The density separation method was applied to extract microplastics from sea surface sediment and water samples. Polymeric compounds were identified through ATR-FTIR analysis. The average microplastic abundances were 112.57 ± 121.30 items/kg in sediment and 57.46 ± 20.82 items/L in water. Abundance comparisons revealed similar level of pollution in both sea areas and medium to high-level pollution than others around the world. Characterization revealed that fragments and small microplastics (< 1,000 µm) predominated sediments. Fragments and films were major shapes in the SIS sediments while only fragments predominated the SJ sediments. Large microplastics (1,000–5,000 µm) fibers predominated water in all the areas. Transparent microplastics predominated both the sediments and water. Polyethylene, polyvinyl alcohol, and polypropylene were major polymers in sediments while polyethylene terephthalate and polyethylene predominated water. No significant correlations of microplastics abundances and characteristics were observed between sediment and water. Anthropogenic activities and environmental factors were speculated to be the main sources of microplastics in these areas. Overall, this study indicated that microplastics pollution in these marine areas could be an alarming environmental problem.

著者

A. H.

出版者

社団法人 大阪生活衛生協会

雑誌

生活衛生 (ISSN:05824176)

巻号頁・発行日

vol.10, no.2, pp.74-77, 1966 (Released:2010-10-28)

著者

Muhammad Ayyaz Ul Haq Muhammad Rashid Ian C. Gilchrist Olivier Bertrand Chun Shing Kwok Chun Wai Wong Hossam M. Mansour Yasser Baghdaddy James Nolan Maarten A.H. van Leeuwen Mamas A. Mamas

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.82, no.11, pp.2736-2744, 2018-10-25 (Released:2018-10-25)

参考文献数

43

被引用文献数

13

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Background: We systematically reviewed the available literature on limb dysfunction after transradial access (TRA) or transfemoral access (TFA) cardiac catheterization. Methods and Results: MEDLINE and EMBASE were searched for studies evaluating any transradial or transfemoral procedures and limb function outcomes. Data were extracted and results were narratively synthesized with similar treatment arms. The TRA group included 15 studies with 3,616 participants and of these 3 reported nerve damage with a combined incidence of 0.16% and 4 reported sensory loss, tingling and numbness with a pooled incidence of 1.61%. Pain after TRA was the most common form of limb dysfunction (7.77%) reported in 3 studies. The incidence of hand dysfunction defined as disability, grip strength change, power loss or neuropathy was low at 0.49%. Although radial artery occlusion (RAO) was not a primary endpoint for this review, it was observed in 3.57% of the participants in a total of 8 studies included. The TFA group included 4 studies with 15,903,894 participants; the rates of peripheral neuropathy were 0.004%, sensory neuropathy caused by local groin injury and retroperitoneal hematomas were 0.04% and 0.17%, respectively, and motor deficit caused by femoral and obturator nerve damage was 0.13%. Conclusions: Limb dysfunction post cardiac catheterization is rare, but patients may have nonspecific sensory and motor complaints that resolve over a period of time.

著者

楠山 純平 本多 歩 岩橋 伸太郎 北嶋 孝之 由井 明紀 伊東 利洋 Lu X. Slocum A. H.

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 (ISSN:21879761)

巻号頁・発行日

vol.83, no.852, pp.17-00102-17-00102, 2017 (Released:2017-08-25)

参考文献数

23

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Si wafer diameter tends to be increased from 300 mm to 450 mm in order to increase semiconductor device productivity. To this end, the authors developed a rotary grinding machine with high stiffness, equipped with water hydrostatic bearings. This grinding spindle is designed to govern infeed motion of the grinding wheel. This study investigates the basic design and performance of the grinding spindle system. This system itself is composed of a constant pressure water hydrostatic bearing as a radial bearing and a magnetic actuator as a thrust bearing. The magnetic actuator combine the infeed device and the thrust bearing. The measured results show that the static stiffness, Ks, is 1.06 kN/μm, the natural frequency is 353 Hz, and the positioning accuracy is 0.2 μm. These results meet the performance requirements necessary to grind φ450 mm Si wafer.

著者

compiled in A.H. 730 (A.D. 1330) and now abridged in English from a manuscript dated A.H. 857 (A.D. 1453) by Edward G. Browne with indices of the fac-simile text by R.A. Nicholson

出版者

Luzac

巻号頁・発行日

1910

著者

Hatta Y. Iancu E. Mueller A. H.

出版者

Institute of Physics Publishing

雑誌

Journal of high energy physics (ISSN:11266708)

巻号頁・発行日

vol.2008, no.5, pp.37, 2008-05

被引用文献数

101 106

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Within the framework of the AdS/CFT correspondence, we study the timeevolution of an energetic R-current propagating through a finite temperature, stronglycoupled, N = 4 SYM plasma and propose a physical picture for our results. In thispicture, the current splits into a pair of massless partons, which then evolve via successivebranchings, in such a way that energy is quasi-democratically divided among the productsof a branching. We point out a duality between the transverse size of the partonic systemproduced through branching and the radial distance traveled by the dual Maxwell wave inthe AdS geometry. For a time-like current, the branching occurs already in the vacuum,where it gives rise to a system of low-momentum partons isotropically distributed in thetransverse plane. But at finite temperature, the branching mechanism is modified by themedium, in that the rate for parton splitting is enhanced by the transfer of transversemomentum from the partons to the plasma. This mechanism, which controls the partonenergy loss, is sensitive to the energy density in the plasma, but not to the details of thethermal state. We compute the lifetime of the current for various kinematical regimes andprovide physical interpretations for other, related, quantities, so like the meson screeninglength, the drag force, or the trailing string, that were previously computed via AdS/CFTtechniques.