Ex situ hypothermic perfusion of nonhuman primate pancreas: A feasibility study

2020 ◽  
Vol 44 (7) ◽  
pp. 736-743
Author(s):  
Thomas Prudhomme ◽  
Karine Renaudin ◽  
Maria Letizia Lo Faro ◽  
Diego Cantarovich ◽  
Delphine Kervella ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Nonhuman Primate ◽  
Ex Situ ◽  
Hypothermic Perfusion

scholarly journals Quantitative ferumoxytol-enhanced MRI in pregnancy: A feasibility study in the nonhuman primate

2020 ◽  
Vol 65 ◽  
pp. 100-108
Author(s):  
Ante Zhu ◽  
Scott B. Reeder ◽  
Kevin M. Johnson ◽  
Sydney M. Nguyen ◽  
Sean B. Fain ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Nonhuman Primate ◽  
Enhanced Mri ◽  
In Pregnancy

Ex situ heart magnetic resonance imaging and angiography: feasibility study for forensic purposes

2021 ◽  
Vol 25 ◽  
pp. 200442
Author(s):  
Francesco Pio Cafarelli ◽  
Luca Macarini ◽  
Luigi Cipolloni ◽  
Francesca Maglietta ◽  
Giuseppe Guglielmi ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Feasibility Study ◽  
Ex Situ ◽  
Resonance Imaging

Outcome after ex situ or ante situm liver resection with hypothermic perfusion and auto‐transplantation: A single‐centre experience in adult and paediatric patients

2020 ◽  
Vol 122 (6) ◽  
pp. 1122-1131
Author(s):  
Andrea Schlegel ◽  
Yuhki Sakuraoka ◽  
Kanchan Motwani ◽  
David Gourevitch ◽  
Khalid Sharif ◽  
...  
Keyword(s):  
Liver Resection ◽  
Ex Situ ◽  
Single Centre ◽  
Hypothermic Perfusion ◽  
Paediatric Patients ◽  
Single Centre Experience

scholarly journals Radiation-grafted cation-exchange membranes: an initial ex situ feasibility study into their potential use in reverse electrodialysis

2019 ◽  
Vol 3 (7) ◽  
pp. 1682-1692 ◽  
Author(s):  
Terry R. Willson ◽  
Ian Hamerton ◽  
John R. Varcoe ◽  
Rachida Bance-Soualhi
Keyword(s):  
Cation Exchange ◽  
Feasibility Study ◽  
Cation Exchange Membrane ◽  
Ex Situ ◽  
Reverse Electrodialysis ◽  
Low Resistance ◽  
Exchange Membrane ◽  
Potential Use

A low resistance bis(vinylphenyl)ethane-crosslinked radiation-grafted cation-exchange membrane can achieve a permselectivity of >90%.

Electron Microscopic Detection and Characterization of Nonhuman Primate Enteric Viruses

1982 ◽  
Vol 40 ◽  
pp. 306-307
Author(s):  
G. C. Smith ◽  
R. L. Heberling ◽  
S. S. Kalter
Keyword(s):  
Electron Microscopy ◽  
Animal Model ◽  
Nonhuman Primate ◽  
Clinical Condition ◽  
Intestinal Tract ◽  
Enteric Viruses ◽  
Electron Microscopic ◽  
Microscopic Detection

A number of viral agents are recognized as and suspected of causing the clinical condition “gastroenteritis.” In our attempts to establish an animal model for studies of this entity, we have been examining the nonhuman primate to ascertain what viruses may be found in the intestinal tract of “normal” animals as well as animals with diarrhea. Several virus types including coronavirus, adenovirus, herpesvirus, and picornavirus (Table I) were detected in our colony; however, rotavirus, astrovirus, and calicivirus have not yet been observed. Fecal specimens were prepared for electron microscopy by procedures reported previously.

An in situ and ex situ TEM study of the formation of thin cobalt silicide films by molecular beam epitaxy on the silicon (100) surface

1988 ◽  
Vol 46 ◽  
pp. 884-885
Author(s):  
D. Loretto ◽  
J. M. Gibson ◽  
S. M. Yalisove ◽  
R. T. Tung
Keyword(s):  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Defect Density ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
Ex Situ ◽  
Metal Base ◽  
In Situ Experiments ◽  
Potential Applications

The cobalt disilicide/silicon system has potential applications as a metal-base and as a permeable-base transistor. Although thin, low defect density, films of CoSi2 on Si(111) have been successfully grown, there are reasons to believe that Si(100)/CoSi2 may be better suited to the transmission of electrons at the silicon/silicide interface than Si(111)/CoSi2. A TEM study of the formation of CoSi2 on Si(100) is therefore being conducted. We have previously reported TEM observations on Si(111)/CoSi2 grown both in situ, in an ultra high vacuum (UHV) TEM and ex situ, in a conventional Molecular Beam Epitaxy system.The procedures used for the MBE growth have been described elsewhere. In situ experiments were performed in a JEOL 200CX electron microscope, extensively modified to give a vacuum of better than 10-9 T in the specimen region and the capacity to do in situ sample heating and deposition. Cobalt was deposited onto clean Si(100) samples by thermal evaporation from cobalt-coated Ta filaments.

The use of transmission and analytical electron microscopy in studying reactions and phase transformations in thin film

1993 ◽  
Vol 51 ◽  
pp. 842-843
Author(s):  
K. Barmak
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Phase Transformations ◽  
Analytical Electron Microscopy ◽  
Ex Situ ◽  
Multilayer Thin Films ◽  
Absolute Concentration ◽  
Analytical Electron ◽  
Deposition Step

Generally, processing of thin films involves several annealing steps in addition to the deposition step. During the annealing steps, diffusion, transformations and reactions take place. In this paper, examples of the use of TEM and AEM for ex situ and in situ studies of reactions and phase transformations in thin films will be presented.The ex situ studies were carried out on Nb/Al multilayer thin films annealed to different stages of reaction. Figure 1 shows a multilayer with dNb = 383 and dAl = 117 nm annealed at 750°C for 4 hours. As can be seen in the micrograph, there are four phases, Nb/Nb3-xAl/Nb2-xAl/NbAl3, present in the film at this stage of the reaction. The composition of each of the four regions marked 1-4 was obtained by EDX analysis. The absolute concentration in each region could not be determined due to the lack of thickness and geometry parameters that were required to make the necessary absorption and fluorescence corrections.

Transmission Electron Microscopy of Epitaxial silicides grown by ultra high vacuum deposition

1989 ◽  
Vol 47 ◽  
pp. 462-463
Author(s):  
D. Loretto ◽  
J. M. Gibson ◽  
S. M. Yalisove
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Electron Diffraction ◽  
High Vacuum ◽  
High Energy ◽  
Energy Electron ◽  
Ultra High Vacuum ◽  
Ex Situ ◽  
Transmission Electron

The silicides CoSi2 and NiSi2 are both metallic with the fee flourite structure and lattice constants which are close to silicon (1.2% and 0.6% smaller at room temperature respectively) Consequently epitaxial cobalt and nickel disilicide can be grown on silicon. If these layers are formed by ultra high vacuum (UHV) deposition (also known as molecular beam epitaxy or MBE) their thickness can be controlled to within a few monolayers. Such ultrathin metal/silicon systems have many potential applications: for example electronic devices based on ballistic transport. They also provide a model system to study the properties of heterointerfaces. In this work we will discuss results obtained using in situ and ex situ transmission electron microscopy (TEM).In situ TEM is suited to the study of MBE growth for several reasons. It offers high spatial resolution and the ability to penetrate many monolayers of material. This is in contrast to the techniques which are usually employed for in situ measurements in MBE, for example low energy electron diffraction (LEED) and reflection high energy electron diffraction (RHEED), which are both sensitive to only a few monolayers at the surface.

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