oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 1 )

2016 ( 1 )

2015 ( 10 )

2014 ( 15 )

Custom range...

Search Results: 1 - 10 of 184 matches for " Nobuaki Kaibe "
All listed articles are free for downloading (OA Articles)
Page 1 /184
Display every page Item
Operative Benefits of Artificial Pneumothorax in Thoracoscopic Esophagectomy in the Left Lateral Decubitus Position for Esophageal Cancer  [PDF]
Masashi Takemura, Nobuaki Kaibe, Mamiko Takii, Mitsuru Sasako
International Journal of Clinical Medicine (IJCM) , 2015, DOI: 10.4236/ijcm.2015.612127
Abstract: Objectives: This study aimed to evaluate operative benefits of artificial pnuemothorax in thoracoscopic esophagectomy in the left lateral decubitus position. Methods: We retrospectively analyzed short-term surgical outcomes including learning curve of 60 consecutive patients who underwent thoracoscopic esophagectomy with artificial pnuemothorax in the left lateral decubitus position between April 2010 and November 2012 in our department. Results: The median operation time and intraoperative blood loss were 443 min and 220 ml, respectively, and these values were 174 min and 95 ml, respectively, in the thoracic phase of surgery. The median number of harvested lymph node was 37. Only 1 patient required conversion to open esophagectomy. The postoperative 30-day mortality rate was 1.7%. The thoracic operation time significantly decreased after an experience of 10 cases and intraoperative blood loss during thoracic phasesignificantly decreased after an experience of 20 cases (p < 0.05), and operation time remained constant for the following cases. The number of harvested lymph nodes did not exhibit significant changes with an increase in the number of case experienced. Conclusions: Artificial pneumothorax provided the shorting of learning curve at the thoracoscopic esophagectomy in the left lateral decubitus position.
Short Term Operative Outcomes of Laparoscopic Gastric Mobilization in Esophagectomy for Esophageal Cancer: Comparison with Hand Assisted Technique  [PDF]
Masashi Takemura, Mamiko Takii, Nobuaki Kaibe, Tsutomu Oshima, Mitsuru Sasako
Surgical Science (SS) , 2016, DOI: 10.4236/ss.2016.77039
Abstract: Objective: This study evaluated the safety and operative utilities of the laparoscopic gastric mobilization compared with hand-assisted laparoscopic gastric mobilization. Patients and Methods: From April 2010 to November 2015, 125 patients with esophageal cancer have been performed laparoscopic mobilization; 33 under hand-assisted laparoscopic gastric mobilization (HLG group) and 92 under laparoscopic gastric mobilization without hand-assisted technique (LG group). Preoperative data and surgical outcomes of 2 groups were compared. Results: Preoperative data were not significantly different except for BMI. Operation time in abdominal procedure of LG group is significantly longer than HLG group (P < 0.0001). Otherwise, the blood loss and number of dissected nodes of abdominal procedure was not significantly different in two groups. The perioperative blood transfusions were needed in 7 cases (21.2%) in HLG group and 25 (27.1%) in LG group. The postoperative complications and mortality within 30 days after surgery were not significantly different in two groups. The length of hospital stay was 29 days in HLG group and 31 days in HG group, respectively. Conclusions: Our results suggested that laparoscopic gastric mobilization was safe technique and the short-term operative outcomes were comparable with that of hand-assisted laparoscopic mobilization.
Matrix Isolation and Computational Study on the Photolysis of CHCl2COCl  [PDF]
Nobuaki Tanaka
Open Journal of Physical Chemistry (OJPC) , 2014, DOI: 10.4236/ojpc.2014.43014
Abstract:

UV light photolysis of dichloroacetyl chloride (CHCl2COCl) has been investigated by infrared spectroscopy in cryogenic Ar, Kr, Xe, and O2 matrices. The formation of CHCl3 and CO was found to be the dominant process over the ketene formation. The C-C bond cleaved products CHCl2 and COCl were also observed. As the number of the chlorine atom substitution to methyl group of acetyl chloride increased, the C-C bond cleaved product yield in the triplet state increased, which can be attributed to an internal heavy-atom effect where the intersystem crossing rate was enhanced.

Density Functional Theory Studies on the Addition and Abstraction Reactions of OH Radical with Benzoate Anion  [PDF]
Nobuaki Tanaka, Shigeo Itoh
Open Journal of Physical Chemistry (OJPC) , 2013, DOI: 10.4236/ojpc.2013.31002
Abstract:

The addition and abstraction reactions of OH radical with benzoate anion are investigated by density functional theory calculations that include solvent effects using UB3LYP, UCAM-B3LYP, UmPW1PW91 and UM06-2X functionals with the 6-311++G(2d,2p) basis set. Geometry optimizations of the reactants, products and transition state species are performed for the possible reaction paths. For the addition reactions, those targeting the ipso-, ortho-, meta- and para-carbons are predicted to be exoergic. The H-atom abstraction reactions from ortho, meta and para positions are also predicted to be exoergic. On the basis of the rate constants calculated by means of the transition state theory, the H-atom abstraction reaction from the ortho position is determined to be the favored path followed by the ortho OH addition reaction.

Selective Chemical Labeling of Proteins with Small Fluorescent Molecules Based on Metal-Chelation Methodology
Nobuaki Soh
Sensors , 2008, DOI: 10.3390/s8021004
Abstract: Site-specific chemical labeling utilizing small fluorescent molecules is apowerful and attractive technique for in vivo and in vitro analysis of cellular proteins,which can circumvent some problems in genetic encoding labeling by large fluorescentproteins. In particular, affinity labeling based on metal-chelation, advantageous due to thehigh selectivity/simplicity and the small tag-size, is promising, as well as enzymaticcovalent labeling, thereby a variety of novel methods have been studied in recent years.This review describes the advances in chemical labeling of proteins, especially highlightingthe metal-chelation methodology.
Selective Chemical Labeling of Proteins with Small Fluorescent Molecules Based on Metal-Chelation Methodology
Nobuaki Soh
Sensors , 2008,
Abstract: Site-specific chemical labeling utilizing small fluorescent molecules is apowerful and attractive technique for in vivo and in vitro analysis of cellular proteins,which can circumvent some problems in genetic encoding labeling by large fluorescentproteins. In particular, affinity labeling based on metal-chelation, advantageous due to thehigh selectivity/simplicity and the small tag-size, is promising, as well as enzymaticcovalent labeling, thereby a variety of novel methods have been studied in recent years.This review describes the advances in chemical labeling of proteins, especially highlightingthe metal-chelation methodology.
Development of a Multi-fingered Mechanical Hand with Envelope Grasp Capability for Various Shapes of Parts
Nobuaki IMAMURA
Journal of Systemics, Cybernetics and Informatics , 2007,
Abstract: Recently, it has been required that various objects with different shapes or sizes could be held and grasped by one robot hand mechanism for the sake of factory automation and labor saving. Corresponding to such needs, we have developed an articulated mechanical hand which has an envelope grasp capability. Since the developed hand is possible to envelope and grasp an object mechanically, it can be used easily and widely in the factory where various shaped or different sized parts should be handled. In this paper, the detailed design of articulated mechanical hand with envelope grasp capability which we have newly developed by introducing GaeaDrive and its motion mechanism are described.
Long-Range GABAergic Connections Distributed throughout the Neocortex and their Possible Function
Nobuaki Tamamaki
Frontiers in Neuroscience , 2010, DOI: 10.3389/fnins.2010.00202
Abstract: Features and functions of long-range GABAergic projection neurons in the developing cerebral cortex have been reported previously, although until now their significance in the adult cerebral cortex has remained uncertain. The septo-hippocampal circuit is one exception – in this system, long-range mature GABAergic projection neurons have been well analyzed and their contribution to the generation of theta-oscillatory behavior in the hippocampus has been documented. To have a clue to the function of the GABAergic projection neurons in the neocortex, we view how the long-range GABAergic projections are integrated in the cortico-cortical, cortico-fugal, and afferent projections in the cerebral cortex. Then, we consider the possibility that the GABAergic projection neurons are involved in the generation, modification, and/or synchronization of oscillations in mature neocortical neuron activity. When markers that identify the GABAergic projection neurons are examined in anatomical and developmental studies, it is clear that neuronal NO synthetase (nNOS)-immunoreactivity can readily identify GABAergic projection neurons. GABAergic projection neurons account for 0.5% of the neocortical GABAergic neurons. To elucidate the role of the GABAergic projection neurons in the neocortex, it will be necessary to clarify the network constructed by nNOS-positive GABAergic projection neurons and their postsynaptic targets. Thus, our long-range goals will be to label and manipulate (including deleting) the GABAergic projection neurons using genetic tools driven by a nNOS promoter. We recognize that this may be a complex endeavor, as most excitatory neurons in the murine neocortex express nNOS transiently. Nevertheless, additional studies characterizing long-range GABAergic projection neurons will have great value to the overall understanding of mature cortical function.
Stable splitting and cohomology of p-local finite groups over the extraspecial p-group of order p^3 and exponent p
Nobuaki Yagita
Mathematics , 2009, DOI: 10.2140/gtm.2007.11.399
Abstract: Let p be an odd prime. Let G be a p-local finite group over the extraspecial p-group p_+^{1+2}. In this paper we study the cohomology and the stable splitting of their p-complete classifying space BG.
Algebraic cobordism and flag varieties
Nobuaki Yagita
Mathematics , 2015,
Abstract: Let X be an algebraic variety over k such that X|K is cellular for the algebraically closed field K over k. Then we study the restriction map CH(X) to CH(X|K) of Chow rings, by using algebraic cobordism theory. In particular, we compute CH(G/T) for twisted flag varieties G/T over k.
Page 1 /184
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.