THE MAGNETIC INSTRUMENT PAD AS TEMPLATE MATERIAL

1991 ◽  
Vol 88 (3) ◽  
pp. 549 ◽  
Author(s):  
Tad E. Grenga
2020 ◽  
pp. 113-118
Author(s):  
Yu. V. Bunin ◽  
P. M. Zamyatin ◽  
R. M. Mihаylusov ◽  
V. V. Negoduyko ◽  
S. O. Beresnyev ◽  
...  

Summary. The arms — to analyze the evolution of the development of modern surgical instruments in gunshot wounds chest. Materials and methods. 80 cases of using a modern magnetic surgical instrument for penetrating gunshot wounds of the chest were analyzed. Intraoperatively used: a magnetic multifunctional tool for the diagnosis and removal of metallic ferromagnetic foreign bodies, a flexible device for removing ferromagnetic foreign bodies, a magnetic tool for endovideoscopic diagnosis and removal of metallic ferromagnetic foreign bodies from the abdominal and pleural cavities, a magnetic nozzle for video endoscopic surgical interventions. When removing metal foreign bodies, the following methods were used: a method for preliminary determination of the material and properties of a foreign body, a method for video endoscopic laser visualization of the internal organs of the abdominal and pleural cavities. Results. Foreign bodies of the pleural cavity were diagnosed in 80 (100 %) wounded according to СT. Ferromagnetic metal foreign bodies of a gunshot origin of the pleural cavity were removed both during thoracotomy or minithoracotomy, and during thoracoscopic surgical interventions using the method of video endoscopic laser visualization of the internal organs of the abdominal and pleural cavities. The most convenient tool was the endoscopic magnetic tool for removing foreign bodies from the pleural or abdominal cavities. A magnetic nozzle for video endoscopic surgical interventions allows navigation both in the pleural cavity and along the wound channel. Conclusions. 1. The development of a surgical magnetic instrument was phased and began with the improvement of a surgical magnetic instrument to remove ferromagnetic foreign bodies of soft tissues. 2. The improvement of the tool took place as the restrictions on the use of the existing tool were established, which was a prerequisite for the development of a new tool. 3. It is advisable to create a special set of surgical magnetic instruments for video endoscopic surgery.


1938 ◽  
Vol 14 (1) ◽  
pp. 113-126
Author(s):  
W. E. Hoare ◽  
B. Chalmers
Keyword(s):  

2007 ◽  
Vol 19 (5) ◽  
pp. 459-464
Author(s):  
H. Jane Oakey

Degradation of RNA in diagnostic specimens can cause false-negative test results and potential misdiagnosis when tests rely on the detection of specific RNA sequence. Current molecular methods of checking RNA integrity tend to be host species or group specific, necessitating libraries of primers and reaction conditions. The objective here was to develop a universal (multi-species) quality assurance tool for determining the integrity of RNA in animal tissues submitted to a laboratory for analyses. Ribosomal RNA (16S rRNA) transcribed from the mitochondrial 16S rDNA was used as template material for reverse transcription to cDNA and was amplified using polymerase chain reaction (PCR). As mitochondrial DNA has a high level of conservation, the primers used were shown to reverse transcribe and amplify RNA from every animal species tested. Deliberate degradation of rRNA template through temperature abuse of samples resulted in no reverse transcription and amplification. Samples spiked with viruses showed that single-stranded viral RNA and rRNA in the same sample degraded at similar rates, hence reverse transcription and PCR amplification of 16S rRNA could be used as a test of sample integrity and suitability for analysis that required the sample's RNA, including viral RNA. This test will be an invaluable quality assurance tool for determination of RNA integrity from tissue samples, thus avoiding erroneous test results that might occur if degraded target RNA is used unknowingly as template material for reverse transcription and subsequent PCR amplification.


2001 ◽  
Vol 16 (11) ◽  
pp. 3124-3132 ◽  
Author(s):  
Uong Chon ◽  
Hyun M. Jang ◽  
Sun-Hwa Lee ◽  
Gyu-Chul Yi

Highly c-axis-oriented Bi3.25La0.75Ti3O12 (BLT) films with a homogeneous in-plane orientation were successfully grown on SiO2/Si(100) and Pt/Ti/SiO2/Si(100) substrates by a sol-coating route. The substitution of lanthanum ions for bismuth ions in the layered perovskite suppressed the formation of pyrochlore phase and enhanced the c-axis-oriented growth. The c-axis-oriented BLT film fabricated on a Pt/Ti/SiO2/Si(100) substrate showed fatigue-free characteristics with a large remanent polarization of 26–28 μC/cm2 and the coercive field of 50–75 kV/cm. These features significantly enhance the potential value of the BLT film for the applications to high-density ferroelectric random-access memories devices. In addition, the c-axis-oriented BLT film, with a homogeneous in-plane orientation on an amorphous surface, can be used as a suitable template material for applications to various electro-magneto-optic devices.


2006 ◽  
Vol 6 (1) ◽  
pp. 185-189 ◽  
Author(s):  
L. Shi ◽  
Y. M. Xu ◽  
Quan Li

Polycrystalline hollow spheres and single crystalline hexagonal cylinders of MgO have been fabricated by chemical vapor deposition using ZnO and Mg as the starting materials. The Zn produced during the chemical reaction serves as template material, and vaporization of which leads to the formation of the hollow structures. The presence of trace amount of Si in the source material is identified to be critical for the existence of the stable MgO hollow structures, which otherwise would be damaged during the Zn template removal process. The same principle can be readily adopted in many other material systems and result a variety of hollow structures for catalyst, sensor and medical applications.


Endoscopy ◽  
2004 ◽  
Vol 36 (12) ◽  
pp. 1130-1130 ◽  
Author(s):  
S. Nijhawan ◽  
A. Joshi ◽  
A. Shende ◽  
N. Agarwal ◽  
D. Kumar ◽  
...  

Author(s):  
Е.Ю. Стовпяга ◽  
Д.А. Курдюков ◽  
Д.А. Кириленко ◽  
А.Н. Смирнов ◽  
А.В. Швидченко ◽  
...  

Monodisperse molybdenum disulfide nanoparticles were synthesized in mesopores of spherical silica particles (mSiO2) served as a template. First, the pores of mSiO2 particles were impregnated with the precursor (ammonium tetrathiomolybdate solution). Then, the reduction of the filler in thermodynamically equilibrium conditions in H2S/H2 atmosphere was carried out. The template material (a-SiO2) was selectively etched from the composite mSiO2/MoS2 particles with HF to obtain individual MoS2 nanoparticles. The mean size of MoS2 nanoparticles determined by microscopic methods was found to be 3.5 nm. According to dynamic light scattering data, the nanoparticles had low size scatter (18%).


RSC Advances ◽  
2019 ◽  
Vol 9 (61) ◽  
pp. 35780-35785 ◽  
Author(s):  
Guanwei Jia ◽  
Kun Wang ◽  
Baokun Liu ◽  
Peixu Yang ◽  
Jinhui Liu ◽  
...  

CuInxGa1−xSe2 (CIGS) nanowires were synthesized for the first time through an in situ cation exchange reaction by using CuInSe2 (CIS) nanowires as a template material and Ga-OLA complexes as the Ga source.


2006 ◽  
Vol 957 ◽  
Author(s):  
Jingbiao Cui ◽  
Ursula J Gibson

ABSTRACTPeriodically ordered ZnO nanopillar arrays were fabricated by a combination of soft templates created by e-beam lithography and an electrochemical process. Growth at 90 °C in an aqueous solution ensured compatibility with the polymethyl methacrylate used as a template material. We demonstrate that individual ZnO nanopillars with diameters around 100 nm can be precisely placed in desired locations to form two-dimensional periodic structures. This approach provides a new method for design and fabrication of ZnO photonic materials. The process is compatible with standard microfabrication techniques and may have potential applications in the manufacture of photonic and optoelectronic devices.


2020 ◽  
Vol 13 (9) ◽  
pp. 2993-3006 ◽  
Author(s):  
Nemanja Martić ◽  
Christian Reller ◽  
Chandra Macauley ◽  
Mario Löffler ◽  
Andreas M. Reichert ◽  
...  

Employing Ag2Cu2O3, a mixed metal oxide, as a template catalyst material for electrochemical reduction of CO enables generation of multi-carbon products with a faradaic efficiency of close to 92%, at a current density of 600 mA cm−2.


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