bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numerical Analysis and Experimental Study of Buckling Behavior of Steel Cylindrical Panels
Authors: Shariati M. , Sedighi M. , Saemi J. , Poorfar A. K. 
Published: January 2011

AbstractThe effects of the length, sector angle and different boundary conditions on the buckling load and post buckling behavior of cylindrical panels have been investigated using experimental and numerical methods. The experimental tests have been performed using a servo hydraulic machine and for numerical analysis, Abaqus finite element package has been used. The numerical results are in good agreement with the experimental tests.
Development of Fine‐Grained High‐Carbon Steel in High Reduction Low Temperature Rolling
Authors: Morimoto T. , Mukaihara T. , Kusumoto Y. , Oda M. , Takeshima K. , Yatoh H. 
Published: January 2011

AbstractAfter blanking and bending to form parts with the desired shape, high‐carbon steels are quenched and tempered to produce various machine parts. Thus, the spheroidization, formability and hardenability are very important properties for high‐carbon steels. Thermo‐Mechanical control Process of rolling has been widely used in the steel industry. However, it is difficult to apply this process to high‐carbon steels because of the heavy rolling load. Thus, fine‐grained high‐carbon hot strips were developed through high‐reduction and low‐temperature rolling by using single roll rolling mills with different diameters and laminar flow cooling devices in the finishing train, the grain size of these steels was about 3 microns. Also developed annealed strips with fine homogeneously dispersed spheroidal cementite had many excellent characteristics. For example, burring formability investigated by the hole‐expanding and surface hardness evaluated by laser hardening of the developed high‐carbon annealed steels, were excellent.
A new method for analysis of non‐pregnant uterine peristalsis using transvaginal ultrasound
Authors: Meirzon D. , Jaffa A. J. , Gordon Z. , Elad D. 
Published: January 2011

AbstractObjectivesTo develop an objective method for analysis of uterine peristalsis using transvaginal sonography (TVS).MethodsWe performed computerized analysis of 2–5‐min video recordings of TVS imaging of a midsagittal cross‐section of the uterus during the proliferative and early secretory phases of 18 healthy volunteers aged 28–41 years. The contours of the fluid–endometrial interface (FEI) and the endometrium–myometrium interface (EMI) were detected in each frame, and the data from all frames were used to explore the dynamic motility characteristics of these interfaces at fixed distances from the fundus.ResultsThe mean ± SD dominant frequency of peristalsis of the EMI along the midsagittal cross‐section was 0.049 ± 0.01 Hz and that of the cavity center was 0.043 ± 0.02 Hz. The maximal amplitudes of the EMI were about 1 ± 0.25 mm, located between 7 and 17 mm from the fundus. The amplitudes of the FEI were in the range 0.05–0.2 mm. The amplitude of the cavity centerline movement was 0.94 ± 0.34 mm, located at the extremes of the unperturbed curve.ConclusionsThis study provides a simple tool for analysis of uterine peristalsis characteristics using ultrasound data. This is possible at the EMI even when the FEI is invisible or incomplete, such as during the luteal phase, when an intrauterine contraceptive device is in place, and during diagnostic or medical intervention. Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd.
Organellar RNA editing
Authors: Chateigner‐Boutin Anne‐Laure , Small Ian 
Published: January 2011

AbstractRNA editing is a term used for a number of mechanistically different processes that alter the nucleotide sequence of RNA molecules to differ from the gene sequence. RNA editing occurs in a wide variety of organisms and is particularly frequent in organelle transcripts of eukaryotes. The discontiguous phylogenetic distribution of mRNA editing, the mechanistic differences observed in different organisms, and the nonhomologous editing machinery described in different taxonomic groups all suggest that RNA editing has appeared independently several times. This raises questions about the selection pressures acting to maintain editing that are yet to be completely resolved. Editing tends to be frequent in organisms with atypical organelle genomes and acts to correct the effect of DNA mutations that would otherwise compromise the synthesis of functional proteins. Additional functions of editing in generating protein diversity or regulating gene expression have been proposed but so far lack widespread experimental evidence, at least in organelles. WIREs RNA 2011 2 493–506 DOI: 10.1002/wrna.72This article is categorized under:

RNA Processing > RNA Editing and Modification
Darstellung, Struktur und magnetisches Verhalten von Alkali‐metallmanganchalkogeniden A6MnX4 mit A Na oder K und X S, Se oder Te
Authors: Bronger W. , Balk‐Hardtdegen H. 
Published: January 2011

AbstractInhaltsübersicht. Die Verbindungen Na6MnS4, Na6MnSe4, Na6MnTe4, K6MnS4, K6MnSe4 und K6MnTe4 wurden durch Umsetzungen von Alkalimetallcarbonaten mit Chalkogen und Mangan bzw. Mangancarbonat in einem mit Chalkogen beladenen Wasserstoffstrom erhalten.Röntgenstrukturuntersuchungen an Einkristallen ergaben, daß alle sechs Verbindungen isotyp kristallisieren (Na6ZnO4‐Typ, Raumgruppe P63mc). Als charakteristische Baugruppen treten “isolierte” tetraedrische [MnX4]‐Einheiten auf.Die Temperaturabhängigkeiten der magnetischen Suszeptibilitäten führen zu einem Curie‐WeissVerhalten. Erst bei tiefen Temperaturen treten offensichtlich antiferromagnetische Kopplungen auf. Dabei sind die Wechselwirkungen in den Tellurverbindungen stärker als in den Schwefelverbindungen und in den Kaliumverbindungen stärker als in den Natriumverbindungen ausgeprägt.Synthesis, Structure, and Magnetic Properties of Alkali Metal Manganese Chalcogenides A6MnX4 with A Na or K and X S, Se or TeThe compounds Na6MnS4, Na6MnSe4, Na6MnTe4, K6MnS4, K6MnSe4 and K6MnTe4 were synthesized by the reaction of alkali metal carbonates with chalcogen and Mn or MnCO3 in a stream of hydrogen charged with chalcogen.Structural investigations on single crystals show that all six compounds crystallize in isotypic atomic arrangements (Na6ZnO4‐type, space group P63mc), which are characterized by isolated [MnX4] tetrahedra.The magnetic susceptibilities show Curie‐Weiss behaviour. At low temperatures there are obviously antiferromagnetic interactions increasing from the sulfides to the tellurides and from the sodium compounds to the potassium compounds.
Synthese und Kristallstrukturen von IMalnBr4 und NaInI4
Authors: Staffel Thomas , Meyer Gerd 
Published: January 2011

AbstractInhaltsübersicht. Einkristalle von NaInBr4 und NaInI4 erhält man aus Gemengen der binären Komponenten durch langsames Abkühlen der Schmelze. NaInBr4 gehört zum NaAlCl4‐Typ: Orthorhombisch, P212121, Z = 4; a = 1108,1(1); b = 1050,7(1); c = 676,1(1) pm. NaInI4 ist isotyp mit LiAlCl4: Monoklin, P21/c, Z = 4; a = 852,1(2); b = 766,1(2); c = 1558,3(3) pm; β = 92,65(2)°. In beiden Strukturen treten annähernd tetraedrische Baugruppen [InX4]– (X = Br, I) auf. Die Koordinationszahl von Na+ ist C.N. = 6 (NaInI4; leicht verzerrt oktaedrisch) bzw. C.N. = 6+1+1 (NaInBr4; verzerrtes, doppelt bekapptes Prisma).Synthesis and Crystal Structures of NaInBr4 and NaInI4Single crystals of NaInBr4 and NaInI4 are obtained from mixtures of the binary components by slow cooling of the melts. NaInBr4 belongs to the NaAlCl4 type of structure: Ortho‐rhombic, P212121, Z = 4, a = 1108.1(1), b = 1050.7(1), c = 676.1(1) pm. NaInI4 is isotypic with LiAlCl4: Monoclmic, P21/c, Z = 4, a = 852.1(2), b = 766.1(2), c = 1558.3(3) pm, β = 92.65(2)°. Almost tetrahedral polyhedra [InX4]– (X = Br, I) are characteristic for both structures. The coordination number of Na+ is C.N. = 6 (NaInI4; slightly distorted octahedron) and C.N. = 6+1+1 (NaInBr4; distorted bicapped trigonal prism), respectively.
Bis[bis(trimethylsilyl)amino]sulfan 1. Darstellung und Charakterisierung
Authors: Schubert G. , Gattow G. 
Published: January 2011

AbstractInhaltsübersicht. Die Titelverbindung[(CH3)3Si]2N–S–N[Si(CH3)3]2 wurde durch Reaktion von Lithium‐bis(trimethylsilyl)arnid mit Schwefeldichlorid hergestellt.Elektronenabsorptions‐, Infrarot‐, Kernresonanz‐ (1H, 13C, 29Si, 15N) und Massenspektren werden mitgeteilt. Die Reaktivität der Verbindung wurde untersucht.Bis[bis (trimethylsilyl) amino] sulfane. 1. Synthesis and CharacterizationAbstract, The title compound [(CH3)3Si]2N–S–N[Si(CH3)3]2 has been prepared by reaction of lithium bis(trimethylsilyl)amide with sulfur dichloride.Electron absorption, infrared, nuclear magnetic resonance (1H, 13C, 29Si, 16N), and mass spectra are given. The reactivity of the compound has been studied.Im Zusammenhang mit unseren Untersuchungen [1–3] über S‐Bis(trimethyl‐eilyl)aminoester von Dithiocarbamidsäuren RR′N–CS–S–N[Si(CH3)3]2 haben wir uns mit dem Bis[bis(trimethylsilyl)amino]sulfan [(CH3)3Si]2N‐S‐N[Si(CH3)3]2 befaßt.Diese Verbindung wurde erstmals 1962 von Wannagat u. Kückertz [4] hergestellt und kurz beschrieben. Wolmershäuser u. Mitarb. [5] teilten einige wenige spektroskopische Daten mit; vgl. auch [6, 7].
BaIr0,67Be0,33O3: Eine stabilisierte kubische Form von BaIrO3
Authors: Lang CH. , MÜller‐Buschbaum H K. 
Published: January 2011

AbstractInhaltsübersicht. Es ist gelungen, ein durch BeO stabilisiertes Bariumoxoiridat der Zusammensetzung BaIr0,67Be0,33O3 in der Kristallform eines kubischen Perowskits mit kleiner Elementarzelle erstmals darzustellen. Raumgruppe O1h–Pm3m, a = 4,1009 Å, Z = 1. Ir5+ und Be2 + besetzen die Oktaederposition des Perowskits statistisch.BaIr0,67Be0,33O3: A Stabilized Cubic Form of BaIrO3For the first time it was possible to prepare a new barium‐oxoiridate of the formula BaIr0,67Be0,33O3, stabilized by BeO. It crystallizes in a small cubic unit cell of the perovskite type. Space group O1h–Pm3m; a = 4.1009 Å; Z = 1. Ir5+ and Be2+ occupy the octahedra positions of the perovskite structure statistically.
Neue Oxometallate vom BaCuSm2O6‐Typ: BaCoHo2O5, BaCoYb2O5 und vom BaNiLn2O5‐Typ: BaCoEr2O5
Authors: Mevs H. , MÜller‐Buschbaum H K. 
Published: January 2011

AbstractInhaltsübersicht. (I) BaCoHo2O5, (II) BaCoYb2O5 und (III) BaCoEr2O5 wurden neu dargestellt und an Einkristallen mit Röntgenbeugungsmethoden die Kristallstruktur bestimmt. (I) und (II) gehören zum BaCuSm2O5‐Typ mit (I): A = 12,267; b = 5,714; c = 7,064 Å; Z = 4; (II): A = 12,138; b = 5,662; c = 7,004 Å; Z = 4. Beide kristallisieren in der Raumgruppe D162h–Pnma. (III) kristallisiert im BaNiLn2O5‐Typ, Raumgruppe D252h–Immm mit a = 3,734; b = 5,770; c = 11,421 Å; Z = 2. Die Koordination um Co2+ wechselt von (I, II) nach (III) von tetragonal pyramidal nach oktaedrisch.New Oxides of the BaCuSm2O5‐Type: BaCoHo2O5, BaCoYb2O5, and of the BaNiLn2O5 Type: BaCoEr2O5(I) BaCoHo2O5, (II) BaCoYb2O5, and (III) BaCoEr2O5 are new compounds prepared by high temperature reactions. X‐ray single crystal work show: (I) and (II) belong to the BaCuSm2O5‐type (space group D162h‐Pnma, Z = 4). (I): A = 12.267; b = 5.714; c = 7.064 Å; (II): A = 12.138; b = 5.662; c = 7,004 Å. (III) crystallizes with BaNiLn2O5‐structure, space group D252h‐Immm; Z = 2; a = 3.734; b = 5.770; c = 11.421 Å; within (I) and (II) Co2+ has a tetragonal pyramidal coordination by oxygen. The coordination changes in (III) to a compressed octehedral O2– surrounding.
New Compounds in the IMb2O6(Ta2O5)‐V2O6 Systems
Authors: Yamaguchi Osamu , Mukaida Yasumichi , Shigeta Hiroyasu 
Published: January 2011

AbstractIn the Nb2O5–V2O5 and Ta2O5–V2O5 systems, new compounds, 9Nb2O5 · 2V2O5 and 9Ta2O5 · 2V2O5, are formed at low temperatures from amorphous materials prepared by the simultaneous hydrolysis of either niobium isopropoxide or tantalum isopropoxide and vanadyl ethoxide. They are isomorphous and have an orthorhombic unit cell, with a = 0.7939 nm, b = 1.731 nm, and c = 1.761 nm for the former compound and a = 0.7859 nm, b = 1.733 nm, and c = 1.766 nm for the latter compound. Both compounds decompose into 9Nb2O5 · V2O5 (9Ta2O5 · V2O5) and V2O5 at elevated temperatures.Neue Verbindungen in Nb2O5 (Ta2O5) –V2O5‐SystemenInhaltsübersicht. In den Nb2O5–V2O5‐ und Ta2O5–V2O5‐Systemen werden die neuen Verbindungen 9Nb2O5 · 2V2O5 und 9Ta2O5 · 2V2O5 bei niedrigen Temperaturen aus amorphen, durch simultane Hydrolyse von Niobisopropoxid bzw. Tantalisopropoxid und Vanadylethoxid erhaltenen Substanzen gebildet. Sie sind isomorph und haben eine orthorhombische Einheitszelle mit a = 0,7939, b = 1,731, c = 1,761 nm für erstere und a = 0,7859, b = 1,733, c = 1,766 nm für letztere Verbindung. Beide Verbindungen zerfallen bei erhöhter Temperatur in 9Nb2O5 · V2O5 bzw. 9Ta2O5. V2O5 und V2O5.
Effects of Glutamine on Gastrointestinal Motor Activity in Patients following Gastric Surgery
Authors: Mochiki Erito , Ohno Tetsuro , Yanai Mitsuhiro , Toyomasu Yoshitaka , Andoh Hiroyuki , Kuwano Hiroyuki 
Published: January 2011

AbstractBackgroundPostoperative ileus (POI) is one of the most common complications of gastrointestinal surgery. The present study was performed to evaluate the effects of glutamine administration on POI after gastric surgery in humans.Subjects and methodsThe subjects were 31 patients who underwent partial distal gastrectomy for gastric cancer and who were randomly assigned to one of two groups based on postoperative treatment: the glutamine group (3 g/day) and the control group. Manometric recording was done 12 days after surgery, and plasma glutamine concentrations were measured preoperatively and on postoperative day 12.ResultsMotor activities of the duodenum in the glutamine group were significantly greater than those of the control group in the interdigestive state. The incidence of phase III motor activity (interdigestive migrating motor contractions) in the glutamine group was significantly higher than that in the control group (60 versus 19%). The glutamine group showed a significantly smaller decrease of plasma glutamine levels compared with the control group.ConclusionsGlutamine could act as a motility‐recovery agent after gastrectomy in humans.
Invariant Ordering of Item-Total Regressions
Authors: Tijmstra Jesper , Hessen David J. , van der Heijden Peter G. M. , Sijtsma Klaas 
Published: January 2011

AbstractA new observable consequence of the property of invariant item ordering is presented, which holds under Mokken’s double monotonicity model for dichotomous data. The observable consequence is an invariant ordering of the item-total regressions. Kendall’s measure of concordance W and a weighted version of this measure are proposed as measures for this property. Karabatsos and Sheu proposed a Bayesian procedure (Appl. Psychol. Meas. 28:110–125, 2004), which can be used to determine whether the property of an invariant ordering of the item-total regressions should be rejected for a set of items. An example is presented to illustrate the application of the procedures to empirical data.
Dietary determinants for Hb-acrylamide and Hb-glycidamide adducts in Danish non-smoking women
Authors: Outzen Malene , Egeberg Rikke , Dragsted Lars , Christensen Jane , Olesen Pelle T. , Frandsen Henrik , Overvad Kim , Tjønneland Anne , Olsen Anja 
Published: January 2011

Acrylamide (AA) is a probable human carcinogen that is formed in heat-treated carbohydrate-rich foods. The validity of FFQ to assess AA exposure has been questioned. The aim of the present cross-sectional study was to investigate dietary determinants of Hb-AA and Hb-glycidamide (GA) adducts. The study included 537 non-smoking women aged 50–65 years who participated in the Diet, Cancer and Health cohort (1993–97). At study baseline, blood samples and information on dietary and lifestyle variables obtained from self-administered questionnaires were collected. From blood samples, Hb-AA and Hb-GA in erythrocytes were analysed by liquid chromatography/MS/MS. Dietary determinants were evaluated by multiple linear regression analyses adjusted for age and smoking behaviour among ex-smokers. The median for Hb-AA was 35 pmol/g globin (5th percentile 17, 95th percentile 89) and for Hb-GA 21 pmol/g globin (5th percentile 8, 95th percentile 49). Of the dietary factors studied, intakes of coffee and chips were statistically significantly associated with a 4 % per 200 g/d (95 % CI 2, 7; P < 0·0001) and an 18 % per 5 g/d (95 % CI 6, 31; P = 0·002) higher Hb-AA, respectively. This model explained 17 % of the variation in Hb-AA. Intakes of coffee and biscuits/crackers were statistically significantly associated with a 3 % per 200 g/d (95 % CI 1, 6; P = 0·005) and 12 % per 10 g/d (95 % CI 3, 23; P = 0·01) higher Hb-GA, respectively. This model explained 12 % of the variation in Hb-GA. In conclusion, only a few dietary determinants of Hb-AA and Hb-GA were identified. Thus, the present study implies that dietary intake measured by an FFQ explains only to a limited extent the variation in Hb-AA and Hb-GA concentrations.
Early weaning causes undernutrition for a short period and programmes some metabolic syndrome components and leptin resistance in adult rat offspring
Authors: da Silva Lima Natália , Gaspar de Moura Egberto , Cottini Fonseca Passos Magna , Firmino Nogueira Neto José , Martha Reis Adelina , de Oliveira Elaine , Cristina Lisboa Patricia 
Published: January 2011

Maternal malnutrition during lactation programmes for overweight and central leptin resistance in adulthood. The inhibition of lactation by maternal treatment with bromocriptine (a prolactin inhibitor) programmes for obesity, hyperleptinaemia and leptin resistance. Here, we evaluated the short- and long-term effects of early weaning (EW) on body-weight regulation, leptin signalling, and hormone and lipid profiles in rats offspring. Lactating rats were separated into two groups: EW – dams were wrapped with a bandage to interrupt the lactation in the last 3 d of lactation; control – dams whose pups had free access to milk during all lactation (21 d). Data were significant atP < 0·05. At weaning, EW pups presented lower body weight ( − 10 %), length ( − 4 %), visceral fat ( − 40 %), total fat ( − 30 %), serum leptin ( − 73 %), glycaemia ( − 10 %), serum insulin ( − 20 %) and insulin resistance index (IRI; − 30 %), but higher total body protein content (+40 %). At 180 d, EW offspring showed hyperphagia, higher length (+3 %), body weight (+8 %), visceral and total fat (+36 and 84 %), serum TAG (+96 %), glycaemia (+15 %), leptinaemia (+185 %) and IRI (+29 %); however, they showed lower total protein content ( − 23 %), leptin:body fat ratio (41 %), prolactinaemia ( − 38 %) and adiponectinaemia ( − 59 %). Despite unchanged leptin receptor (OB-R) and signal transducer and activator of transcription 3 (STAT3), they displayed lower hypothalamic janus tyrosine kinase 2, phosphorylated STAT3 and a higher suppressor of cytokine signalling 3 levels, suggesting a central leptin resistance. Adult rats that were early weaned displayed higher adiposity, insulin resistance and dyslipidaemia, which are related to metabolic syndrome development. Our model reinforces the idea that neonatal malnutrition caused by shortening of the lactation period is important for metabolic programming of future diseases.
Effects of a supra-sustained gelatin–milk protein diet compared with (supra-)sustained milk protein diets on body-weight loss
Authors: Hochstenbach-Waelen Ananda , Soenen Stijn , Westerterp Klaas R. , Westerterp-Plantenga Margriet S. 
Published: January 2011

Diets higher in protein content result in increased satiety and energy expenditure. In the short term, gelatin showed stronger hunger suppression and less subsequent energy intake compared with other proteins. The present study investigated whether a supra-sustained gelatin–milk protein (GMP) diet promotes weight loss compared with a sustained milk protein (SMP) diet and a supra-sustained milk protein (SSMP) diet during an 8-week diet period. A total of seventy-two healthy subjects (31·2 (sd4·8) kg/m2; 43 (sd10) years) followed one of the three diets in a subject-specific amount: SMP, SSMP or GMP diet. During weeks 1–4, energy intake was 100 % of individual energy requirement: 10, 40 and 50 % of energy (En %) as protein, fat and carbohydrate, respectively (SMP diet), and 20, 30 and 50 En % as protein, fat and carbohydrate, respectively (SSMP diet or GMP diet). During weeks 5–8, energy intake was 33 % of individual energy requirement: 30, 35 and 35 En % as protein, fat and carbohydrate, respectively (SMP diet), and 60, 5 and 35 En % as protein, fat and carbohydrate, respectively (SSMP diet or GMP diet). Thus, absolute protein intake was kept constant throughout per subject. Significant decreases in BMI (P < 0·0001) were similar between the GMP ( − 1·7 (sd0·5) kg/m2) and the SMP ( − 2·1 (sd0·8) kg/m2) and SSMP ( − 1·6 (sd0·5) kg/m2) diets. Decreases in fat-free mass (FFM), fat mass (FM) and FM %, and increases in FFM % were similar between the GMP and both control diets. Changes in RQ differed (P < 0·05) between the GMP ( − 0·01 (sd0·06)) and SSMP ( − 0·04 (sd0·04)) diets. Changes in HDL concentrations differed (P < 0·05) between the GMP ( − 0·21 (sd0·18) mmol/l) and the SMP and SSMP diets ( − 0·08 (sd0·18) mmol/l and − 0·09 (sd0·26) mmol/l, respectively). In conclusion, a gelatin–milk protein diet does not induce more beneficial effects during an 8-week weight-loss period compared with a SMP or SSMP diet.
Relative validity of fruit and vegetable intake estimated from an FFQ, using carotenoid and flavonoid biomarkers and the method of triads
Authors: Carlsen Monica H. , Karlsen Anette , Lillegaard Inger T. L. , Gran Jon M. , Drevon Christian A. , Blomhoff Rune , Andersen Lene F. 
Published: January 2011

The aim of the present study was to validate the intakes of fruit, juice and vegetables from an FFQ. In sub-study I (n147), intakes from the FFQ were evaluated against 7 d weighed food records (WR) and plasma carotenoid concentrations, whereas in sub-study II (n85), the intakes were evaluated against plasma carotenoid concentrations and amounts of flavonoids in 24 h urine samples. Relative validity was evaluated by comparing median intakes, estimating correlation coefficients and validity coefficients using the method of triads. In sub-study I, we observed no significant difference in daily median fruit intake between the FFQ and the WR, whereas the intake of vegetables was higher from the FFQ than from the WR. The correlations between intakes from the FFQ and the WR ranged from 0·31 to 0·58. In sub-study II, the intakes of fruit and vegetables correlated significantly with plasma carotenoid concentrations and urinary flavonoids. The validity coefficients for the intakes of fruit and vegetables from the FFQ ranged from 0·61 to 0·88 in sub-study I and from 0·60 to 0·94 in sub-study II. In summary, based on the associations observed between intakes from the FFQ and the biomarkers and the FFQ validity coefficients, the FFQ was found valid and suitable for ranking individuals according to their usual intake of fruit, juice and vegetables.