摘要:
A method of depositing a high quality low defect single crystalline Group III-Nitride film. A patterned substrate having a plurality of features with inclined sidewalls separated by spaces is provided. A Group III-Nitride film is deposited by a hydride vapor phase epitaxy (HVPE) process over the patterned substrate. The HVPE deposition process forms a Group III-Nitride film having a first crystal orientation in the spaces between features and a second different crystal orientation on the inclined sidewalls. The first crystal orientation in the spaces subsequently overgrows the second crystal orientation on the sidewalls and in the process turns over and terminates treading dislocations formed in the first crystal orientation.
摘要:
The present invention provides an induced cancer cell capable of self-replication in vitro which is useful in cancer therapy research and the research for cancer-related drug discovery, processes for production thereof, cancer cells induced by the malignant cells, and applications of these cells.The present invention provides an induced cancer stem cell capable of proliferation (self-replication) in vitro, wherein the induced cancer stem cell has the following two characteristics: (1) expressing the six genes (self-renewal related genes) POU5F1, NANOG, SOX2, ZFP42, LIN28, and TERT selected from a certain group of genes; and (2) having an aberration which is either (a) a mutation in an endogenous tumor suppressor gene or (b) increased expression of an endogenous cancer-related gene.
摘要:
A fail-safe capability is realized that not only forestalls the execution by the user of the head replacement operation in an erroneous sequence while the printing apparatus is in operation but also prevents the splashing of ink even if the user attempts to inadvertently replace the print head. For this purpose, the ink supply and the opening and closing of the print head replacement cover are performed by a predetermined rotation of one drive source.
摘要:
A method for hepatic differentiation of a stem cell selected from among embryonic stem cells, induced pluripotent stem cells or induced hepatic stem cells is presented. More specifically, a stem cell selected from among embryonic stem cells, induced pluripotent stem cells or induced hepatic stem cells is cultured for 1 to 4 weeks in the presence of a TGF-β inhibitor, whereby the hepatic differentiation of the stem cell is realized.
摘要:
The present invention relates to an induced hepatic stem cell defined as follows, a process for production thereof, and applications of the cell, which are useful in safety tests, toxicity tests, metabolism tests, drug interaction tests, antiviral activity tests, screening tests for pharmaceuticals such as hyperlipidemic therapeutics, hypertension therapeutics, low-molecular weight compound medicaments, and antibody medicaments, screening for targets in drug discovery, preparation of animal models, production of hepatocyte-produced proteins, and in regenerative medicine. The induced hepatic stem cell of the present invention is characterized by at least satisfying the following requirements (1)-(3): (1) it expresses at least 15 genes as selected from the group of the genes which are marker genes for an embryonic stem cell; (2) it has properties of a hepatocyte; and (3) it can be subjected to expansion culture or passage culture for at least 3 days.
摘要:
One embodiment of a quantum well structure comprises an active region including active layers that comprise quantum wells and barrier layers wherein some or all of the active layers are p type doped. P type doping some or all of the active layers improves the quantum efficiency of III-V compound semiconductor light emitting diodes by locating the position of the P-N junction in the active region of the device thereby enabling the dominant radiative recombination to occur within the active region. In one embodiment, the quantum well structure is fabricated in a cluster tool having a hydride vapor phase epitaxial (HVPE) deposition chamber with a eutectic source alloy. In one embodiment, the indium gallium nitride (InGaN) layer and the magnesium doped gallium nitride (Mg—GaN) or magnesium doped aluminum gallium nitride (Mg—AlGaN) layer are grown in separate chambers by a cluster tool to avoid indium and magnesium cross contamination. Doping of group III-nitrides by hydride vapor phase epitaxy using group III-metal eutectics is also described. In one embodiment, a source is provided for HVPE deposition of a p-type or an n-type group III-nitride epitaxial film, the source including a liquid phase mechanical (eutectic) mixture with a group III species. In one embodiment, a method is provided for performing HVPE deposition of a p-type or an n-type group III-nitride epitaxial film, the method including using a liquid phase mechanical (eutectic) mixture with a group III species.
摘要:
A connector unit which is capable of suppressing lowering of a clicking feeling, even if the fitting and removing of connectors to and from each other is repeated. A spring portion that receives a contact portion of each of plug contacts of a plug connector when a receptacle connector and the plug connector are fitted to each other is formed on each of receptacle contacts of the receptacle connector. A protrusion is formed on the contact portion of each plug contact. The spring portion is formed to have an auxiliary contact portion that is urged by the protrusion when both of the connectors are fitted to each other, and a recess that receives the protrusion when the both of the connectors are fitted to each other.
摘要:
This invention relates to a printing apparatus and a conveyance control method capable of allowing even an arrangement having a plurality of conveyance rollers in a printing medium conveyance path to accurately control conveyance of a printing medium. According to this invention, a first encoder detects a conveyance amount by a first conveyance roller, provided in a conveyance path, for conveying a printing medium. A second encoder detects a conveyance amount by a second conveyance roller provided in the conveyance path in the conveyance direction of the printing medium at the downstream side of the first conveyance roller for conveying the printing medium. On the other hand, a signal output from the first or second encoder is selected on the basis of the position of the printing medium on the conveyance path. Conveyance of the printing medium is controlled on the basis of the selected output signal.
摘要:
An apparatus for processing substrates using a multi-chamber processing system (e.g., a cluster tool) that has an increased system throughput, increased system reliability, a smaller system footprint, and a more repeatable wafer history. Embodiments provide for a cluster tool comprising first and second processing racks, each having two or more vertically stacked substrate processing chambers, a first robot assembly able to access the first processing rack from a first side, a second robot assembly able to access the first processing rack from a second side and the second processing rack from a first side, a third robot assembly able to access the second processing rack from a second side, and a fourth robot assembly able to access the first and second processing racks and to load substrates in a cassette.
摘要:
There is provided a massage device capable of producing innovative and comfortable massage effect by massaging a target body part over a wide area in its lengthwise direction with substantially rectilinear motion of a pressure-applying point. The massage device 1 comprises a pair of treatment members 23, 24 arranged face-to-face with each other at a spacing large enough for insertion of part of human body; a holding mechanism 162 for holding and pressing the body part in sandwich style by moving at least one of the paired treatment members or both of them 23, 24 in the direction of width of the body part set in place between the paired treatment members; and a moving mechanism 26 for moving the treatment member 23, 24 in the direction of length of the body part while maintaining the holding condition of the treatment member 23, 24 effected by the holding mechanism 162.