Factors influencing open circuit decomposition behavior of sulfur-containing additive component used in Cu plating for advanced interconnect metallization

An engineering technique has been developed that makes it possible to determine the power regimes of the process of crimping a tubular billet in a conical die, taking into account the effect of deformation conditions. The influence of the geometric parameters of the workpiece and tool, the crimping coefficient and non-contact deformation on the axial stress of the crimping process is studied. The main factors influencing the limiting values of the workpiece crimping factor are established. Calculations are performed for the crimping process performed on an open circuit (without stop block), taking into account the friction and hardening of the material. The obtained results are in good agreement with the known experimental data and can be used in the development of the processes of crimping of pipe billets.

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Complexes of sulfur-containing ligands. I. Factors influencing complex formation between d-penicillamine and copper(II) ion

Bioinorganic Chemistry ◽

10.1016/s0006-3061(00)82005-0 ◽

1978 ◽

Vol 9 (1) ◽

pp. 47-60 ◽

Cited By ~ 22

Author(s):

Arthur Gergely ◽

Imre Sóvágó

Keyword(s):

Complex Formation ◽

Factors Influencing ◽

Sulfur Containing

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FACTORS INFLUENCING THE NUTRITIONAL VALUE OF FISH FLOUR: IV. REACTION BETWEEN 1,2-DICHLOROETHANE AND PROTEIN

Canadian Journal of Biochemistry ◽

10.1139/o65-004 ◽

1965 ◽

Vol 43 (1) ◽

pp. 33-40 ◽

Cited By ~ 13

Author(s):

A. B. Morrison ◽

I. C. Munro

Keyword(s):

Biological Activity ◽

Nutritional Value ◽

Tetrahymena Pyriformis ◽

Sulfhydryl Groups ◽

Factors Influencing ◽

Freeze Dried ◽

Subsequent Hydrolysis ◽

Alkaline Conditions ◽

Ph Dependent ◽

Sulfur Containing

Extraction of freeze-dried cod fillets with 1,2-dichloroethane resulted in destruction of cystine and histidine and in interference with the release of cystine, histidine, and methionine by pancreatic digestion. The reaction was pH dependent, occurring most readily under slightly alkaline conditions. The thioether S,S′-ethylenebiscysteine was synthesized by reacting cysteine and 1,2-dichloroethane. Alkylation of reduced wool or fish solids, and subsequent hydrolysis, yielded a sulfur-containing compound with the same Rf value as the synthetic thioether. The thioether appeared devoid of biological activity for L. mesenteraides P-60, Tetrahymena pyriformis W., and the rat. It was cleaved by autoclaving, but was stable to acid hydrolysis.The evidence suggested that sulfhydryl groups of protein can be alkylated by 1,2-dichloroethane to produce thioether linkages, with a resultant decrease in nutritional value.

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Methionine-Specific Staining of Collagen

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010005408x ◽

1982 ◽

Vol 40 ◽

pp. 294-295

Author(s):

E.M. Kuhn ◽

K.D. Marenus ◽

M. Beer

Keyword(s):

Amino Acids ◽

Collagen Fibers ◽

Type Iii Collagen ◽

Type I ◽

Electron Microscopic ◽

Good Correspondence ◽

Specific Staining ◽

Type Iii ◽

Different Types ◽

Sulfur Containing

Fibers composed of different types of collagen cannot be differentiated by conventional electron microscopic stains. We are developing staining procedures aimed at identifying collagen fibers of different types.Pt(Gly-L-Met)Cl binds specifically to sulfur-containing amino acids. Different collagens have methionine (met) residues at somewhat different positions. A good correspondence has been reported between known met positions and Pt(GLM) bands in rat Type I SLS (collagen aggregates in which molecules lie adjacent to each other in exact register). We have confirmed this relationship in Type III collagen SLS (Fig. 1).

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Factors influencing adhesive bonding at the bone/implant interface

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100130201 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1114-1115

Author(s):

Julie A. Martini ◽

Robert H. Doremus

Keyword(s):

Electron Microscopy ◽

Adhesive Bonding ◽

Microscopy Study ◽

Electron Microscopy Study ◽

Bone Implant ◽

Factors Influencing ◽

Lr White ◽

Transmission Electron ◽

New Zealand White Rabbits ◽

Scanning Electron

Tracy and Doremus have demonstrated chemical bonding between bone and hydroxylapatite with transmission electron microscopy. Now researchers ponder how to improve upon this bond in turn improving the life expectancy and biocompatibility of implantable orthopedic devices.This report focuses on a study of the- chemical influences on the interfacial integrity and strength. Pure hydroxylapatite (HAP), magnesium doped HAP, strontium doped HAP, bioglass and medical grade titanium cylinders were implanted into the tibial cortices of New Zealand white rabbits. After 12 weeks, the implants were retrieved for a scanning electron microscopy study coupled with energy dispersive spectroscopy.Following sacrifice and careful retrieval, the samples were dehydrated through a graduated series starting with 50% ethanol and continuing through 60, 70, 80, 90, 95, and 100% ethanol over a period of two days. The samples were embedded in LR White. Again a graduated series was used with solutions of 50, 75 and 100% LR White diluted in ethanol.

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Signal-regulated oxidation of proteins via MICAL

Biochemical Society Transactions ◽

10.1042/bst20190866 ◽

2020 ◽

Vol 48 (2) ◽

pp. 613-620

Author(s):

Clara Ortegón Salas ◽

Katharina Schneider ◽

Christopher Horst Lillig ◽

Manuela Gellert

Keyword(s):

Signal Transduction ◽

Hydrogen Peroxide ◽

Cell Death ◽

Redox Regulation ◽

Signal Transduction Pathways ◽

Cellular Functions ◽

Intracellular Signals ◽

Amino Acid Side Chains ◽

Specific Receptors ◽

Sulfur Containing

Processing of and responding to various signals is an essential cellular function that influences survival, homeostasis, development, and cell death. Extra- or intracellular signals are perceived via specific receptors and transduced in a particular signalling pathway that results in a precise response. Reversible post-translational redox modifications of cysteinyl and methionyl residues have been characterised in countless signal transduction pathways. Due to the low reactivity of most sulfur-containing amino acid side chains with hydrogen peroxide, for instance, and also to ensure specificity, redox signalling requires catalysis, just like phosphorylation signalling requires kinases and phosphatases. While reducing enzymes of both cysteinyl- and methionyl-derivates have been characterised in great detail before, the discovery and characterisation of MICAL proteins evinced the first examples of specific oxidases in signal transduction. This article provides an overview of the functions of MICAL proteins in the redox regulation of cellular functions.

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Factors Influencing Electrophysiologic Responsivity in Normal Adults

Journal of Speech and Hearing Research ◽

10.1044/jshr.0804.323 ◽

1965 ◽

Vol 8 (4) ◽

pp. 323-347

Author(s):

Robert Goldstein ◽

Benjamin RosenblÜt

Keyword(s):

Conditioned Stimulus ◽

White Light ◽

Pure Tone ◽

Alpha Rhythm ◽

White Women ◽

White Men ◽

Inverse Relation ◽

Factors Influencing ◽

Electrodermal Responses ◽

Normal Adults

Electrodermal and electroencephalic responsivity to sound and to light was studied in 96 normal-hearing adults in three separate sessions. The subjects were subdivided into equal groups of white men, white women, colored men, and colored women. A 1 000 cps pure tone was the conditioned stimulus in two sessions and white light was used in a third session. Heat was the unconditioned stimulus in all sessions. Previously, an inverse relation had been found in white men between the prominence of alpha rhythm in the EEG and the ease with which electrodermal responses could be elicited. This relation did not hold true for white women. The main purpose of the present study was to answer the following questions: (1) are the previous findings on white subjects applicable to colored subjects? (2) are subjects who are most (or least) responsive electrophysiologically on one day equally responsive (or unresponsive) on another day? and (3) are subjects who are most (or least) responsive to sound equally responsive (or unresponsive) to light? In general, each question was answered affirmatively. Other factors influencing responsivity were also studied.

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