The Studies on Development, Evaluation and Extension of New Rice Seedling-Rearing and Fertilization for Low-Cost and Labour-Saving in the Rice-wheat Double Cropping Area of Gunma Prefecture.

東京農工大学博士（農学）text学位論文 / Thesis or Dissertationthesi

Case Report of Acute Cardiac Tamponade Creation in a Macaque: Echo-Guided Catheter Manipulation to Perforate Coronary Artery

Although acute cardiac tamponade is one of the major problems in clinical practice, a suitable animal model is still lacking. We tried to create acute cardiac tamponade in macaques by echo-guided catheter manipulation. A 13-year-old male macaque was anesthetized, and a long sheath was inserted into the left ventricle via the left carotid artery under the guidance of transthoracic echocardiography. The sheath was then inserted into the orifice of the left coronary artery to perforate the proximal site of the left anterior descending branch. A cardiac tamponade was successfully created. Injection of diluted contrast agent into the pericardial space via a catheter made it possible to clearly distinguish between the hemopericardium and the surrounding tissues on postmortem computed tomography. This procedure did not need an X-ray imaging system during catheterization. Our present model would help us examine the intrathoracic organs in the presence of acute cardiac tamponade.journal articl

Contact Motion in Unknown Environment

This paper describes a contact motion in unknown environment. It is required to take in a kinematic and a dynamic information of unknown environment in Opder to utilize for control of contact motion. However, an environmental information is obtained only after the robot contacts with environment. Hence, it is dimcult to enhance the robustness of the force for contact motion. The design method with the clear characteristic of a contact motion will be required. In this paper, two examples of typical contact motion control are shown. One is a bilateral control and the other is a control of a paddle foot for biped walking. Both controllers are based on acceleration control and the characteristic of systems are clarified by using Hadamard matrix. In order to improve the propect of the system, the information of environmental mode is quarried by using Hadamard matrix. Modal transmission from environment to the final posture should change adaptively according to the situation. The viability of these approaches for contact motion is shown in numerical simulations.(c)2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.textconference pape

Measurement of the B0-B0 mixing rate with B0(B0)→D*∓π± partial reconstruction

journal articl

Experimental Investigation on Shearing Characteristics of Unsaturated Soil

departmental bulletin pape

Fluorescence Anisotropy as a Reliable Discrimination of Ligand-Asymmetric and Symmetric Mn-Doped ZnS Quantum Dots

We presented a novel fluorescence anisotropy (FA) method for the noninvasive, effective, simple, and convenient discrimination of the symmetric and asymmetric distribution of the ligands on Mn-doped ZnS quantum dots (QDs). The symmetric or asymmetric distribution of mercaptopropionic acid (MPA) and NH₂-polyethylene glycol-CH₃ (PEG-m, MW 2000) was controlled by the condensation reaction of the carboxyl of MPA and the amino of PEG-m with or without the masking by the amino-functionalized silica nanoparticles. The ligand-asymmetric Janus-QDs were obtained with the masking, whereas the ligand-symmetric PEG-QDs were gained without masking. The FA values of the QDs could not only distinguish the ligand symmetric PEG-QDs from the ligand asymmetric Janus-QDs but also discriminate the QDs with a different PEG-m amount. Besides, the FA assay also has superiority over the dynamic light scattering (DLS) and photoluminescence (PL) methods in discriminating the interaction of Janus-QDs or PEG-QDs with protamine (the sensitivity of Janus-QD-3 over PEG-QD-3 was 1.60, 1.24, and 1.11 in the FA, DLS, and PL methods, respectively)

Nickel-Decorated Fe₃O₄ Nanoparticles as Recyclable Magnetic Self-Stirring Nanocatalysts for Microreactions

We presented the first exploration of the easily prepared nickel-decorated magnetic Fe3O4 nanoparticles as recyclable nanosized magnetic self-stirring catalysts for microdroplet reactions. The cross-linked polymer poly­(cyclotriphosphazene-co-4,4′-sulfonyldiphenol) (PZS) was used as the intermediary to link Fe3O4 and anchored nickel nanodots. On the basis of the charming magnetic feathers of Fe3O4 and the fine catalysis activity of Ni, the Fe3O4@PZS-Ni nanoparticles could not only self-stir or make the reactants move along the tiny channels with the help of the external rotating magnetic field but also exhibit high catalysis activity and convenient recyclability. The Fe3O4@PZS-Ni nanoparticles have the merits of small size, good suspension, easy fabrication, and most importantly, superior flexibility and adaptability to any shape of the microreactors or nanoreactors; thus, they may bring new inspiration for self-stirring catalytic reactions in micro/nanochips or micro/nanobiological tubules or tissues

Newcastle-Ottawa Scale.

Background and aimUnderwater endoscopic mucosal resection (UEMR) has been an emerging substitute for conventional EMR (CEMR). This systematic review and meta-analysis aimed at comparing the efficiency and safety of the two techniques for removing ≥10 mm sessile or flat colorectal polyps.MethodsPubMed, Cochrane Library and Embase databases were searched up to February 2023 to identify eligible studies that compared the outcomes of UEMR and CEMR. This meta-analysis was conducted on the en bloc resection rate, R0 resection rate, complete resection rate, procedure time, adverse events rate and recurrence rate.ResultsNine studies involving 1,727 colorectal polyps were included: 881 were removed by UEMR, and 846 were removed by CEMR. UEMR was associated with a significant increase in en bloc resection rate [Odds ratio(OR) 1.69, 95% confidence interval(CI) 1.36–2.10, pI2 = 33%], R0 resection rate(OR 1.52, 95%CI 1.14–2.03, p = 0.004, I2 = 31%) and complete resection rate(OR 1.67, 95%CI 1.06–2.62, p = 0.03, I2 = 0%) as well as a significant reduction in procedure time(MD ‒4.27, 95%CI ‒7.41 to ‒1.13, p = 0.008, I2 = 90%) and recurrence rate(OR 0.52, 95%CI 0.33–0.83, p = 0.006, I2 = 6%). Both techniques were comparable in adverse events rate.ConclusionUEMR can be a safe and efficient substitute for CEMR in removing ≥10 mm sessile or flat colorectal polyps. More studies verifying the advantages of UEMR over CEMR are needed to promote its application.</div

Nickel-Decorated Fe₃O₄ Nanoparticles as Recyclable Magnetic Self-Stirring Nanocatalysts for Microreactions

We presented the first exploration of the easily prepared nickel-decorated magnetic Fe₃O₄ nanoparticles as recyclable nanosized magnetic self-stirring catalysts for microdroplet reactions. The cross-linked polymer poly­(cyclotriphosphazene-<i>co</i>-4,4′-sulfonyldiphenol) (PZS) was used as the intermediary to link Fe₃O₄ and anchored nickel nanodots. On the basis of the charming magnetic feathers of Fe₃O₄ and the fine catalysis activity of Ni, the Fe₃O₄@PZS-Ni nanoparticles could not only self-stir or make the reactants move along the tiny channels with the help of the external rotating magnetic field but also exhibit high catalysis activity and convenient recyclability. The Fe₃O₄@PZS-Ni nanoparticles have the merits of small size, good suspension, easy fabrication, and most importantly, superior flexibility and adaptability to any shape of the microreactors or nanoreactors; thus, they may bring new inspiration for self-stirring catalytic reactions in micro/nanochips or micro/nanobiological tubules or tissues

PRISMA flow diagram for screening studies.

Background and aimUnderwater endoscopic mucosal resection (UEMR) has been an emerging substitute for conventional EMR (CEMR). This systematic review and meta-analysis aimed at comparing the efficiency and safety of the two techniques for removing ≥10 mm sessile or flat colorectal polyps.MethodsPubMed, Cochrane Library and Embase databases were searched up to February 2023 to identify eligible studies that compared the outcomes of UEMR and CEMR. This meta-analysis was conducted on the en bloc resection rate, R0 resection rate, complete resection rate, procedure time, adverse events rate and recurrence rate.ResultsNine studies involving 1,727 colorectal polyps were included: 881 were removed by UEMR, and 846 were removed by CEMR. UEMR was associated with a significant increase in en bloc resection rate [Odds ratio(OR) 1.69, 95% confidence interval(CI) 1.36–2.10, pI2 = 33%], R0 resection rate(OR 1.52, 95%CI 1.14–2.03, p = 0.004, I2 = 31%) and complete resection rate(OR 1.67, 95%CI 1.06–2.62, p = 0.03, I2 = 0%) as well as a significant reduction in procedure time(MD ‒4.27, 95%CI ‒7.41 to ‒1.13, p = 0.008, I2 = 90%) and recurrence rate(OR 0.52, 95%CI 0.33–0.83, p = 0.006, I2 = 6%). Both techniques were comparable in adverse events rate.ConclusionUEMR can be a safe and efficient substitute for CEMR in removing ≥10 mm sessile or flat colorectal polyps. More studies verifying the advantages of UEMR over CEMR are needed to promote its application.</div