Reconstructing coral calcification fluid dissolved inorganic carbon chemistry from skeletal boron: An exploration of potential controls on coral aragonite B/Ca.
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Reconstructing coral calcification fluid dissolved inorganic carbon chemistry from skeletal boron: An exploration of potential controls on coral aragonite B/Ca.
The boron geochemistry of coral skeleton reflects dissolved inorganic carbon (DIC) chemistry of the fluid where the skeleton calcification of sediment and may be a valuable tool for investigating the effects of climate change on coral calcification.
In this paper I calculate the predicted B / Ca of the originator of aragonite from sea water-based fluids as a function of pH, [DIC] and [Ca2 +]. I consider the species DIC co-originator of how different influences aragonite B / Ca and also estimate the impact of variations in the B (OH) 4 / co-accelerate the partition coefficient of aragonite DIC (KD), which may be related to changes in DIC and Ca2 + chemical fluid calcification.
Reefs order B / Ca against calcification fluid pH previously reported relationship can be reproduced by estimating B (OH) 4 and the co-precipitate speciation DIC as a function of pHCF and assuming constant KD is not affected by the state of calcification fluid saturation. Assuming that B (OH) 4 co-precipitation with CO32-, then the observed pattern can be reproduced by a fluid with about constant [DIC] is increasing pHCF CO32- concentration, as a function of speciation DIC.
Assuming that B (OH) 4 co-precipitation with any HCO3- or CO32- + HCO3- then the observed pattern can be reproduced if [DIC] CF and related pHCF which is positive if DIC is increasingly concentrated in the liquid at a higher calcification pHCF possible with CO2 diffusion into the site of calcification.
Reconstructing coral calcification fluid dissolved inorganic carbon chemistry from skeletal boron: An exploration of potential controls on coral aragonite B/Ca.
Collision-induced dissociation of double-charged ions: Coulomb explosion vs. a loss of neutral in [Ca (urea)] 2+ reactivity unimolecular gas phase through chemical dynamics simulations.
In this paper we report the different theoretical approaches for studying gas-phase unimolecular dissociation of double-charged cations Ca (urea), to rationalize experimental findings recently. Quantum mechanics plus mechanical (QM / MM) Direct chemical molecular dynamics simulations were used to investigate the collision induced dissociation (CID) and the rotational-vibrational energy transfer to Ar + Ca (urea) collision. For picosecond time-domain simulation, both neutral and reaction losses Coulomb explosion discovered and described differences in their mechanisms.
The loss of urea neutral after a collision with Ar happen through destroying mechanism, while the formation of single-charged cations following two statistics (or almost statistics) dynamics. energy transfer efficiency of vibration-rotation obtained for the trajectory that does not separate during the integration path is used in conjunction with a rate constant of dissociation pathways RRKM to estimate the complete assumption intramolecular vibration energy redistribution (IVR) and statistical dynamics.
Limit these statistics to predict, as expected, that in a long time the most stable species on the potential energy surface (PES) dominates. These results, coupled with a good experimental CID neutral loss and Coulomb explosion product was obtained, indicating that the gas phase ion dissociation This occurs by several mechanisms that lead to different products and that the reactivity of the complex PES is a complex dynamic.
Description: BACE2 Antibody: Accumulation of the amyloid-beta (Abeta) plaque in the cerebral cortex is a critical event in the pathogenesis of Alzheimer's disease. Abeta peptide is generated by proteolytic cleavage of the beta-amyloid protein precursor (APP) at beta- and gamma-sites by proteases. The long-sought beta-secretase was recently identified by several groups independently and designated beta-site APP cleaving enzyme (BACE) and aspartyl protease 2 (Asp2). A BACE homolog was recently cloned and designated BACE2, Asp1, DRAP (for Down region aspartic protease), and memapsin 1. BACE2 also cleaves APP at beta-site and at a different site within Abeta. BACE2 locates on chromosome 21q22.3, the so-called ‘Down critical region', suggesting that BACE2 and Abeta may also contribute to the pathogenesis of Down syndrome.
Description: BACE2 Antibody: Accumulation of the amyloid-beta (Abeta) plaque in the cerebral cortex is a critical event in the pathogenesis of Alzheimer's disease. Abeta peptide is generated by proteolytic cleavage of the beta-amyloid protein precursor (APP) at beta- and gamma-sites by proteases. The long-sought beta-secretase was recently identified by several groups independently and designated beta-site APP cleaving enzyme (BACE) and aspartyl protease 2 (Asp2). A BACE homolog was recently cloned and designated BACE2, Asp1, DRAP (for Down region aspartic protease), and memapsin 1. BACE2 also cleaves APP at beta-site and at a different site within Abeta. BACE2 locates on chromosome 21q22.3, the so-called ‘Down critical region', suggesting that BACE2 and Abeta may also contribute to the pathogenesis of Down syndrome.
Description: BACE2 Antibody: Accumulation of the amyloid-beta (Abeta) plaque in the cerebral cortex is a critical event in the pathogenesis of Alzheimer's disease. Abeta peptide is generated by proteolytic cleavage of the beta-amyloid protein precursor (APP) at beta- and gamma-sites by proteases. The long-sought beta-secretase was recently identified by several groups independently and designated beta-site APP cleaving enzyme (BACE) and aspartyl protease 2 (Asp2). BACE/Asp2 is a novel transmembrane aspartic protease and co-localizes with APP. A BACE homolog was recently cloned and designated BACE2, Asp1, DRAP (for Down region aspartic protease), and memapsin 1. BACE2 also cleaves APP at b-site and at a different site within Abeta. BACE2 locates on chromosome 21q22.3, the so-called ‘Down critical region', suggesting that BACE2 and Abeta may also contribute to the pathogenesis of Down syndrome.
Description: BACE2 Antibody: Accumulation of the amyloid-beta (Abeta) plaque in the cerebral cortex is a critical event in the pathogenesis of Alzheimer's disease. Abeta peptide is generated by proteolytic cleavage of the beta-amyloid protein precursor (APP) at beta- and gamma-sites by proteases. The long-sought beta-secretase was recently identified by several groups independently and designated beta-site APP cleaving enzyme (BACE) and aspartyl protease 2 (Asp2). BACE/Asp2 is a novel transmembrane aspartic protease and co-localizes with APP. A BACE homolog was recently cloned and designated BACE2, Asp1, DRAP (for Down region aspartic protease), and memapsin 1. BACE2 also cleaves APP at b-site and at a different site within Abeta. BACE2 locates on chromosome 21q22.3, the so-called ‘Down critical region', suggesting that BACE2 and Abeta may also contribute to the pathogenesis of Down syndrome.
Description: A polyclonal antibody against BACE2. Recognizes BACE2 from Human, Mouse, Rat. This antibody is Unconjugated. Tested in the following application: ELISA, WB
Description: A polyclonal antibody against BACE2. Recognizes BACE2 from Human, Rat. This antibody is Unconjugated. Tested in the following application: ELISA, WB, IHC, IF; Recommended dilution: WB:1:500-1:5000, IHC:1:20-1:200, IF:1:50-1:200
Description: BACE2-IN-1 (compound 3l) is a highly selective BACE2 inhibitor with a Ki value of 1.6 nM. BACE2 inhibitors can be used to research of Type 2 Diabetes[1].
Description: A polyclonal antibody for detection of BACE2 from Human, Mouse, Rat. This BACE2 antibody is for WB, ELISA. It is affinity-purified from rabbit serum by affinity-chromatography using the specific immunogenand is unconjugated. The antibody is produced in rabbit by using as an immunogen synthesized peptide derived from part region of human BACE2 protein at amino acid sequence of 210-290
Description: A polyclonal antibody for detection of BACE2 from Human, Mouse, Rat. This BACE2 antibody is for WB, ELISA. It is affinity-purified from rabbit serum by affinity-chromatography using the specific immunogenand is unconjugated. The antibody is produced in rabbit by using as an immunogen synthesized peptide derived from part region of human BACE2 protein at amino acid sequence of 210-290
Description: A polyclonal antibody for detection of BACE2 from Human, Mouse, Rat. This BACE2 antibody is for WB, ELISA. It is affinity-purified from rabbit serum by affinity-chromatography using the specific immunogenand is unconjugated. The antibody is produced in rabbit by using as an immunogen synthesized peptide derived from part region of human BACE2 protein at amino acid sequence of 210-290
Description: A polyclonal antibody raised in Rabbit that recognizes and binds to Human BACE2 . This antibody is tested and proven to work in the following applications:
Description: A polyclonal antibody raised in Rabbit that recognizes and binds to Human BACE2 . This antibody is tested and proven to work in the following applications:
Description: This gene encodes an integral membrane glycoprotein that functions as an aspartic protease. The encoded protein cleaves amyloid precursor protein into amyloid beta peptide, which is a critical step in the etiology of Alzheimer's disease and Down syndrome. The protein precursor is further processed into an active mature peptide. Alternative splicing results in multiple transcript variants.
Description: This gene encodes an integral membrane glycoprotein that functions as an aspartic protease. The encoded protein cleaves amyloid precursor protein into amyloid beta peptide, which is a critical step in the etiology of Alzheimer's disease and Down syndrome. The protein precursor is further processed into an active mature peptide. Alternative splicing results in multiple transcript variants.
Description: This gene encodes an integral membrane glycoprotein that functions as an aspartic protease. The encoded protein cleaves amyloid precursor protein into amyloid beta peptide, which is a critical step in the etiology of Alzheimer's disease and Down syndrome. The protein precursor is further processed into an active mature peptide. Alternative splicing results in multiple transcript variants.
Description: This gene encodes an integral membrane glycoprotein that functions as an aspartic protease. The encoded protein cleaves amyloid precursor protein into amyloid beta peptide, which is a critical step in the etiology of Alzheimer's disease and Down syndrome. The protein precursor is further processed into an active mature peptide. Alternative splicing results in multiple transcript variants.
Description: This gene encodes an integral membrane glycoprotein that functions as an aspartic protease. The encoded protein cleaves amyloid precursor protein into amyloid beta peptide, which is a critical step in the etiology of Alzheimer's disease and Down syndrome. The protein precursor is further processed into an active mature peptide. Alternative splicing results in multiple transcript variants.
Description: This gene encodes an integral membrane glycoprotein that functions as an aspartic protease. The encoded protein cleaves amyloid precursor protein into amyloid beta peptide, which is a critical step in the etiology of Alzheimer's disease and Down syndrome. The protein precursor is further processed into an active mature peptide. Alternative splicing results in multiple transcript variants.
Description: This gene encodes an integral membrane glycoprotein that functions as an aspartic protease. The encoded protein cleaves amyloid precursor protein into amyloid beta peptide, which is a critical step in the etiology of Alzheimer's disease and Down syndrome. The protein precursor is further processed into an active mature peptide. Alternative splicing results in multiple transcript variants.
The oxysilicate apatite host CALA4 (SiO4) 3O have been explored for the immobilization of radioactive nuclides. divalent ions, trivalent rare earth ions and ion substitution combined in silicate oxyapatite done to optimize the composition of wasteform simulated. Phase characterized by powder X-ray diffraction, FT-IR, TGA, SEM-EDS, and the HT-XRD techniques. The results showed the effect of ionic substitution on the structure and behavior of thermal expansion.
