Bis(diethyldithiocarbamato)(iodo)(4-methoxyphenyl)tellurium(IV), \u3cem\u3ep\u3c/em\u3e-MeOC\u3csub\u3e6\u3c/sub\u3eH\u3csub\u3e4\u3c/sub\u3eTe(Et\u3csub\u3e2\u3c/sub\u3eNCS\u3csub\u3e2\u3c/sub\u3e)\u3csub\u3e2\u3c/sub\u3eI, and its Isomorphous Partially Bromine-Replaced Analogue, \u3cem\u3ep\u3c/em\u3e-MeOC\u3csub\u3e6\u3c/sub\u3eH\u3csub\u3e4\u3c/sub\u3eTe(Et\u3csub\u3e2\u3c/sub\u3eNCS\u3csub\u3e2\u3c/sub\u3e)\u3csub\u3e2\u3c/sub\u3eBr\u3csub\u3e0.41\u3c/sub\u3eI\u3csub\u3e0.59\u3c/sub\u3e

The structure of the title TeIV complex, C13H19BrN2OS4Te.045(CH2Cl2), is pentagonal bipyramidal with four S atoms [Te-S 2.623 (1)-2.717 (1) Å] and the Br atom [Te-Br 2.890 (1) Å] in equatorial positions. The p-methoxyphenyl group is axial [Te-C 2.145 (3) Å] and the second axial position seems to be occupied by a dithiocarbamate group of a neighbouring molecule acting as a -ligand [TeC 3.751 (3) Å, C-TeC 170.2 (1)°], so that molecules are joined into centrosymmetric associations by this secondary coordination

Bromobis(Diethyldithiocarbamato)(4-Methoxyphenyl)Tellurium(IV)

The crystals of the TeIV complex p-CH3OC6H4Te(Et2NCS2)2Br are isomorphous with those of the the iodine and mixed iodine/bromine analogues previously investigated. The structure is pentagonal bipyramidal at the Te atom with four S atoms [Te-S 2.618-2.721 (1) Å] and the Br atom [Te-Br 2.943 (1) Å] in equatorial positions. The p-methoxyphenyl group is axial [Te-C 2.147 (3) Å]. The second axial position is approached by a Br atom of a centrosymmetrically related complex [TeBr 3.423 (1) Å, C-TeBr 173.1 (1)°] so that the molecules are joined into centrosymmetric pairs by this weak secondary coordination

\u3cem\u3eN\u3c/em\u3e-Methylbenzothiazole-2(3\u3cem\u3eH\u3c/em\u3e)-selone, C\u3csub\u3e8\u3c/sub\u3eH\u3csub\u3e7\u3c/sub\u3eNSSe

The crystal structure of N-methyl1,3-benzothiazole-2(3H)-selone, (mbts) has been studied to estimate the changes in the molecular geometry of the mbts ligand upon coordination. Hypervalent complexes of mbts with TeII and II have been studied by us previously. A significant elongation of the Se=C bond [from 1.817 (7) in mbts to 1.85-1.88 Å in the complexes] was found, but there were no significant changes in the other geometric parameters of the ligand. The only other bond-length decrease of note was for SeC-NMe [from 1.35 (1) in mbts to 1.32-1.34 Å in the complexes]. Thus, only the amino group takes part in electron redistribution upon coordination

\u3cem\u3ecis\u3c/em\u3e-(Diethyldithiocarbamato)diiodo(phenyl)tellurium(IV), PhTe(S\u3csub\u3e2\u3c/sub\u3eCNEt\u3csub\u3e2\u3c/sub\u3e)I\u3csub\u3e2\u3c/sub\u3e, and its Methoxy-Substituted Mixed Br/1 Analogue \u3cem\u3ecis\u3c/em\u3e-Bis(0.4-bromo/0.6-iodo)-(diethyldithiocarbamato)(4-methoxyphenyl) tellurium(IV), \u3cem\u3ep\u3c/em\u3e-MeOC\u3csub\u3e6\u3c/sub\u3eH\u3csub\u3e4\u3c/sub\u3eTe(S\u3csub\u3e2\u3c/sub\u3e CNEt\u3csub\u3e2\u3c/sub\u3e)(Br\u3csub\u3e0.4\u3c/sub\u3eI\u3csub\u3e0.6\u3c/sub\u3e)\u3csub\u3e2\u3c/sub\u3e

The TeIV complexes PhTe(S2CNEt2)I2, (1), and p-MeOC6H4Te(S2CNEt2)Br0.4/I0.6) 2, (2), have been synthesized by reacting PhTeI3 with NaS2CNEt2, and p-MeOC6H4Te(S2CNEt2)2I with Br2, respectively. In (2), both I atoms are partially replaced by Br atoms in a 3:2 ratio. The structures display distorted octahedral Te coordination with two symmetrically coordinated S atoms [Te—S 2.550 (2)—2.569 (2) Å in three independent molecules of (1) and 2.523 (1) Å in (2)] and with two cis-disposed halogen atoms [Te—I 2.941 (1)—2.986 (1) Å in (1) and 3.003 (4) and 3.049 (3) Å in (2); Te—Br 2.962(8) and 2.967 (8) Å in (2)] in equatorial positions. The aryl group is axial in both complexes [Te—C 2.137(6)—2.146(6) and 2.123(5) Å in (1) and (2) respectively] and the second axial position is occupied by a halogen atom of a neighbouring molecule [Te⋅⋅⋅I 3.898(1)—4233(1) Å in (1); Te⋅ ⋅ ⋅I3872(3) Å and Te⋅ ⋅ ⋅Br 3.676(6) Å in (2); trans angles C---Te⋅ ⋅ ⋅ (Br) 153.4(2)—177.7(2)°] so that the molecules are joined into (quasi)centrosymmetric pairs by these secondary interactions

Techno-economic Analysis of MEA CO2Capture from a Cement Kiln - Impact of Steam Supply Scenario

This paper present the techno-economic assessment of an MEA-based CO2capture from a cement plant and the importance of the steam supply on the costs. The evaluations present the energy performances of the CO2capture process based on a cement plant with a clinker capacity of 3,000 t/d. The cost evaluation lead to a cost of cement of 45 â¬/tcementwithout capture, while the cost of cement with CO2capture is estimated to 81 â¬/tcement, resulting in a CO2avoided cost of 83 â¬/tCO2,avoided. As the steam consumption accounts for close to half of the CO2avoided cost, the impact of six alternative steam supply scenarios are considered. The evaluations show that the CO2avoided cost can decrease by up to 35% depending on the steam supply and electricity price. However the possibility of these steam supply alternatives are specific to the considered cement plant, emphasizing therefore that CO2avoided cost from cement shall rather be given as a range depending on the steam supply than as a unique value as often illustrated in the literature

AIRE variations in Addison's disease and autoimmune polyendocrine syndromes (APS):partial gene deletions contribute to APS I

Udgivelsesdato: MarAutoimmune Addison's disease (AAD) is often associated with other components in autoimmune polyendocrine syndromes (APS). Whereas APS I is caused by mutations in the AIRE gene, the susceptibility genes for AAD and APS II are unclear. In the present study, we investigated whether polymorphisms or copy number variations in the AIRE gene were associated with AAD and APS II. First, nine SNPs in the AIRE gene were analyzed in 311 patients with AAD and APS II and 521 healthy controls, identifying no associated risk. Second, in a subgroup of 25 of these patients, AIRE sequencing revealed three novel polymorphisms. Finally, the AIRE copy number was determined by duplex quantitative PCR in 14 patients with APS I, 161 patients with AAD and APS II and in 39 healthy subjects. In two Scandinavian APS I patients previously reported to be homozygous for common AIRE mutations, we identified large deletions of the AIRE gene covering at least exon 2 to exon 8. We conclude that polymorphisms in the AIRE gene are not associated with AAD and APS II. We further suggest that DNA analysis of the parents of patients found to be homozygous for mutations in AIRE, always should be performed

Epidemiology and health related quality of life in hypoparathyroidism in Norway.

OBJECTIVE: The epidemiology of hypoparathyroidism (HP) is largely unknown. We aimed to determine prevalence, etiologies, health related quality of life (HRQoL) and treatment pattern of HP. METHODS: Patients with HP and 22q11 deletion syndrome (DiGeorge syndrome) were identified in electronic hospital registries. All identified patients were invited to participate in a survey. Among patients who responded, HRQoL was determined by Short Form 36 (SF-36) and Hospital Anxiety and Depression scale (HADS). Autoantibodies were measured and candidate genes (CaSR, AIRE, GATA3 and 22q11-deletion) were sequenced for classification of etiology. RESULTS: We identified 522 patients (511 alive) and estimated overall prevalence at 102 per million divided among post-surgical HP (64 per million), non-surgical HP (30 per million) and pseudo-HP (8 per million). Non-surgical HP comprised autosomal dominant hypocalcemia (21%), autoimmune polyendocrine syndrome type 1 (17%), DiGeorge/22q11 deletion syndrome (15%), idiopathic HP (44%), and others, 4%. Among the 283 respondents (median age 53 years (range 9-89), 75% females), seven formerly classified as idiopathic were reclassified after genetic and immunological analyses, whereas 26 (17% of non-surgical HP) remained idiopathic. Most were treated with vitamin D (94%) and calcium (70%), and 10 received parathyroid hormone. HP patients scored significantly worse than the normative population on SF-36 and HADS; patients with post-surgical scored worse than those with non-surgical HP and pseudo-HP, especially on physical health. CONCLUSIONS: We found higher prevalence of non-surgical HP in Norway than reported elsewhere. Genetic testing and autoimmunity screening of idiopathic HP identified a specific cause in 21%. Further research is necessary to unravel the causes of idiopathic HP and to improve the reduced HRQoL reported by HP patients

Дефаззификация нечеткой функции вероятности безотказной работы на примере J-образной модели надёжности

Real technical systems often operate in harsh environmental conditions thus affecting system reliability parameters, which, in this case, could be undetermined. Describing reliability parameters as fuzzy numbers, one can deal with such uncertainties. This paper provides an algorithm used to obtain crisp reliability function for systems with fuzzy reliability model parameters. J-shaped distribution is considered as an example of reliability model for random time to failure