![Loading...](https://link.springer.com/static/c4a417b97a76cc2980e3c25e2271af3129e08bbe/images/pdf-preview/spacer.gif)
-
Article
A Density Functional Investigation of Geometrical and Electronic Structures, Charge Transfer, and Photoluminescent Property of a Zinc(II) Complex with 5-Amino-2-(1H-Benzoimidazol-2-yl)-Phenol
In this paper the results of DFT/TDDFT-based theoretical calculations of an electroluminescent zinc(II) chelate complex with 5-amino-2-(1H-benzoimidazol-2-yl)-phenol (HL), namely [ZnL2] (1), are presented. The mo...
-
Article
Preparation, adsorption and recognition properties of uranyl ion-imprinted marine facultative fungus mainly modified by phytic acid and tetraethyl silicate
Uranyl ion-imprinted polymers (U(VI)-IIPs) were successfully prepared by combining phytic acid as the functional monomer, uranyl ion (UO22+) as the template, and tetraethyl silicate (TEOS) as the cross-linker wit...
-
Article
Open AccessNKX6.1 functions as a metastatic suppressor through epigenetic regulation of the epithelial–mesenchymal transition
The transcription factor NKX6.1 (NK6 homeobox 1) is important in the development of pancreatic β-cells and neurons. Although recent publications show that NKX6.1 is hypermethylated and downregulated during tumori...
-
Article
Electronic structure, charge transfer character and spectroscopic property of electroluminescent/photoluminescent [ZnL2] (HL = 2-(1H-benzo[d]imidazol-2-yl)-4-bromophenol) studied by density functional theory
In this paper the DFT-/TDDFT-based theoretical calculation results of the electroluminescence/photoluminescence zinc(II) chelate complex [ZnL2] are presented, including the molecular geometry, electronic structur...
-
Article
Epigenetic silencing of PTPRR activates MAPK signaling, promotes metastasis and serves as a biomarker of invasive cervical cancer
Epigenetic modifications are a driving force in carcinogenesis. However, their role in cancer metastasis remains poorly understood. The present study investigated the role of DNA methylation in the cervical ca...
-
Article
Suitability of linear quadrupole ion traps for large Coulomb crystals
Growing and studying large Coulomb crystals, composed of tens to hundreds of thousands of ions, in linear quadrupole ion traps presents new challenges for trap implementation. We consider several trap designs,...
-
Article
Transmission Electron Microscopy Characterization of Ni(V) Metallization Stressed Under High Current Density in Flip Chip Solder Joints
The Ni(V) under bump metallization (UBM) in flip chip solder joints is known to be consumed in a two-stage process during current stressing. The Ni(V) UBM transforms first to the “consumed Ni(V)” state. Then, ...
-
Article
Fundamental Study of the Intermixing of 95Pb-5Sn High-Lead Solder Bumps and 37Pb-63Sn Pre-Solder on Chip-Carrier Substrates
This study investigated the intermixing of 95Pb-5Sn solder bumps and 37Pb-63Sn pre-solder in flip-chip solder joints. The reaction conditions included multiple reflows (up to ten) at 240°C, whereby previously ...
-
Article
Effect of Sn concentration on massive spalling in high-Pb soldering reaction with Cu substrate
The massive spalling of Cu3Sn in the soldering reaction between high-Pb solders and Cu substrates was studied to identify the mechanism behind this rather interesting and frequently observed phenomenon. Four diff...
-
Article
Tin Whisker Growth Induced by High Electron Current Density
The effect of electric current on the tin whisker growth on Sn stripes was studied. The Sn stripes, 1 μm in thickness, were patterned on silicon wafers. The design of the Sn stripes allowed the simultaneous study...
-
Article
Effect of UBM Thickness on the Mean Time to Failure of Flip-Chip Solder Joints under Electromigration
Flip-chip solder joints with Cu/Ni/Al underbump metallurgy (UBM) on the chip and an Au/Ni surface finish on the substrate were studied under current stressing at an ambient temperature of 150°C. Three differen...
-
Article
Pronounced electromigration of Cu in molten Sn-based solders
The high local temperature in flip-chip solder joints of microprocessors has raised concerns that the solder, a low melting temperature alloy, might locally liquefy and consequently cause failure of the microp...
-
Article
Gene expression profiling of precursor T-cell lymphoblastic leukemia/lymphoma identifies oncogenic pathways that are potential therapeutic targets
We compared the gene expression pattern of thymic tumors from precursor T-cell lymphoblastic lymphoma/leukemia (pre-T LBL) that arose in transgenic mice that overexpressed SCL, LMO1 or NUP98-HOXD13 (NHD13) with t...
-
Article
Effects of limited cu supply on soldering reactions between SnAgCu and Ni
The volume difference between the various types of solder joints in electronic devices can be enormous. For example, the volume difference between a 760-µm ball grid array solder joint and a 75-µm flip-chip so...
-
Article
Glove Permeation Tests Using Novel Microchemical Techniques for 2,4-Dichlorophenoxyacetic Acid (2,4-D) Derivatives
The aim was to assess the permeation of different herbicide emulsion concentrate formulations of 2,4-dichlorophenoxyacetic acid (2,4-D) as 60.8 and 83.5% butoxyethyl ester (BEE) and 46.8% dimethyl amine salt...
-
Article
Open AccessLoss of heterozygosity and microsatellite instability in hepatocellular carcinoma in Taiwan
Elucidation of the basic genetic changes of human hepatocellular carcinoma is important for the understanding and treatment of this cancer. We used microsatellite polymorphism markers to study 30 cases of hepa...
-
Article
Myelodysplastic syndrome presenting as third malignancy after non-Hodgkin's lymphoma and osteosarcoma
The patient was initially diagnosed as having non-Hodgkin's lymphoma and was cured following treatment with prednisolone, vincristine, daunorubicin, l-asparaginase, and cyclophosphamide. Seven years and two m...
-
Article
Spontaneous resolution of symptoms in an infant with a congenital dural caroticocavernous fistula
We report a 5-week-old boy with a congenital dural caroticocavernous fistula (CCF). He had gradually progressive proptosis, dilated conjunctival veins, chemosis, abducens nerve palsy and an objective bruit. An...
-
Article
Strain Relief in InxGa1-xAs/GaAs Multiple Layer Systems
In a recent paper[l] we presented the notion of a “critical composition” of InxGa1-xAs (x=0.18) which when exceeded results in threading dislocation evolution in InxGa1-xAs (x ≥ 0.18) material grown on GaAs. For ...
-
Article
Production of cellulolytic enzymes from theXylaria andHypoxylon species of xylariaceae
Eighteen strains of xylariaceous fungi have been screened for higher activities of cellulolytic enzymes,Trichoderma reesei QM 9414 was also examined for comparison. Strains ofXylaria anisopleura andX. regalis had...