bluuebunny/crossref_metadata_2025_split huggingface dataset:
Applicability of Lactobacillus plantarum IMDO 788 as a starter culture to control vegetable fermentations
Authors: Wouters Dorrit , Grosu‐Tudor Silvia , Zamfir Medana , De Vuyst Luc 
Published: April 2013

AbstractBACKGROUNDFermentation of vegetables and fruits is a traditional preservation technique, e.g. in Eastern Europe. Although usually spontaneous fermentation processes are applied, the addition of lactic acid bacteria (LAB) starter cultures could accelerate processing and improve the consistency and quality of the end‐products.RESULTSThe application of Lactobacillus plantarum IMDO 788 as a starter culture strain for cauliflower and mixed vegetable fermentations resulted in accelerated acidification as compared with the spontaneous fermentations. The strain dominated the background microbiota throughout the process, whereas the spontaneous fermentations were characterised by widely variable species diversity. During the spontaneous fermentations, almost all carbohydrates were converted into lactic acid, ethanol, mannitol and acetic acid, indicating the participation of both heterofermentative and homofermentative LAB species. During the starter culture‐added fermentations, residual carbohydrates were found and lactic acid and ethanol were the main end‐metabolites. Vegetable‐associated aromas, ethyl acetate and isoamyl acetate were produced during all fermentations. The high concentration of ethanol and the production of ethyl acetate and isoamyl acetate suggested the involvement of yeasts during all fermentations.CONCLUSIONLactobacillus plantarum IMDO 788 was an adequate starter culture strain for vegetable fermentations, prevailing over endogenous LAB communities. Further optimisation of the starter culture formulation is necessary to avoid yeast growth. © 2013 Society of Chemical Industry
Amino acids profile of Serbian unifloral honeys
Authors: Kečkeš Jelena , Trifković Jelena , Andrić Filip , Jovetić Milica , Tešić Živoslav , Milojković‐Opsenica Dušanka 
Published: April 2013

AbstractBACKGROUNDThe free amino acids profile of 192 samples of seven different floral types of Serbian honey (acacia, linden, sunflower, rape, basil, giant goldenrod, and buckwheat) from six different regions was analysed in order to distinguish honeys by their botanical origin.RESULTSThe most abundant amino acids were proline, alanine, phenylalanine, threonine and arginine. Based on the established amino acids profiles, some important differences have been identified among studied honey samples relying on the basic descriptive statistics data, and confirmed by multivariate chemometric methods. Principal component analysis revealed that basil honey samples form a well‐defined cluster imposed with phenylalanine content. The model obtained by linear discriminant analysis might be used to distinguish basil honey from the rest of the samples, and has moderate predictive power to separate genuine acacia, linden, sunflower and rape honeys. New data for the amino acids profile of giant goldenrod and buckwheat honey samples are presented.CONCLUSIONSThe floral origin of honey could be successfully evaluated by its amino acids profile coupled with chemometric analysis. © 2013 Society of Chemical Industry
Stability of the pyrethroid pesticide bifenthrin in milled wheat during thermal processing, yeast and lactic acid fermentation, and storage
Authors: Đorđević Tijana M , Šiler‐Marinković Slavica S , Đurović Rada D , Dimitrijević‐Branković Suzana I , Gajić Umiljendić Jelena S 
Published: April 2013

AbstractBACKGROUNDPesticide residues have become an unavoidable part of food commodities. In the context of increased interest for food processing techniques as a tool for reducing pesticide residues, it is interesting to study the potential loss of pesticides during lactic acid and yeast fermentation. In the present paper the effect of fermentation by Lactobacillus plantarum and Saccharomyces cerevisiae and storage on 23 °C on bifenthrin in wheat was investigated. In addition, the effect of sterilisation (applied in order to avoid contamination with wild microorganism strains, i.e. to determine the individual effects of used strains) on bifenthrin degradation was tested as well.RESULTSNo significant loss of bifenthrin was observed during storage, or after the sterilisation. During the lactic acid fermentation, reduction within wheat fortified with 0.5 mg kg−1 was 42%, while quite lower within samples fortified with 2.5 mg kg−1, maximum 18%. In contrast, bifenthrin concentration was not reduced during yeast fermentation, as the reduction in fortified samples was in the range of spontaneous chemical degradation during incubation period.CONCLUSIONPossible bifenthrin contamination in wheat, in amounts over the maximum residue limits, could not be reduced by sterilisation or by yeast fermentation, but lactic acid fermentation could be an effective tool for minimising residual contamination. © 2013 Society of Chemical Industry
Lamellar Morphology of an ABA Triblock Copolymer with a Main‐Chain Nematic Polyester Central Block
Authors: Sato Kazunori , Koga Maito , Kang Sungmin , Sakajiri Koichi , Watanabe Junji , Tokita Masatoshi 
Published: April 2013

AbstractA liquid crystal (LC) ABA triblock copolymer with poly(styrene) (PS) A blocks and a main‐chain nematic LC polyester B block is synthesized by atom‐transfer radical polymerization of styrene with an LC polyester macro‐initiator. The nematic LC and PS amorphous phases are segregated from each other to form lamellae with a spacing of 27 nm. The 16 nm‐thick nematic LC lamellae are significantly smaller than the contour length of the LC segment (63 nm), and the nematic director is parallel to the lamellae. The central LC segment is primarily more extended in the lamellar direction, but folds so as to meander through the LC lamella and bridges adjacent PS domains. The lamellar microstructure exhibits a reversible spacing increase of up to 31 nm with increasing temperature, suggesting a corresponding increase in the probability of the chain folding.
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On the bounded quasi‐degrees of c.e. sets
Authors: Omanadze Roland Sh. 
Published: April 2013

AbstractWe study the degree structure of bQ‐reducibility and we prove that for any noncomputable c.e. incomplete bQ‐degree a, there exists a nonspeedable bQ‐degree incomparable with it. The structure \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\mathcal {D}_{\mbox{bs}}$\end{document} of the \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\mbox{bs}$\end{document}‐degrees is not elementary equivalent neither to the structure of the \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\mbox{be}$\end{document}‐degrees nor to the structure of the \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\mbox{e}$\end{document}‐degrees. If c.e. degrees a and b form a minimal pair in the c.e. bQ‐degrees, then a and b form a minimal pair in the bQ‐degrees. Also, for every simple set S there is a noncomputable nonspeedable set A which is bQ‐incomparable with S and bQ‐degrees of S and A does not form a minimal pair.
Hierarchically Porous Materials from Layer‐by‐Layer Photopolymerization of High Internal Phase Emulsions
Authors: Sušec Maja , Ligon Samuel Clark , Stampfl Jürgen , Liska Robert , Krajnc Peter 
Published: April 2013

AbstractA combination of high internal phase emulsion (HIPE) templating and additive manufacturing technology (AMT) is applied for creating hierarchical porosity within an acrylate and acrylate/thiol‐based polymer network. The photopolymerizable formulation is optimized to produce emulsions with a volume fraction of droplet phase greater than 80 vol%. Kinetic stability of the emulsions is sufficient enough to withstand in‐mold curing or computer‐controlled layer‐by‐layer stereolithography without phase separation. By including macroscale cellular cavities within the build file, a level of controlled porosity is created simultaneous to the formation of the porous microstructure of the polyHIPE. The hybrid HIPE–AMT technique thus provides hierarchically porous materials with mechanical properties tailored by the addition of thiol chain transfer agent.
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Down‐regulation of interferon tau gene transcription with a transcription factor, EOMES
Authors: Sakurai Toshihiro , Bai Hanako , Bai Rulan , Sato Daisuke , Arai Miki , Okuda Kiyoshi , Ideta Atsushi , Aoyagi Yoshito , Godkin James D. , Imakawa Kazuhiko 
Published: April 2013

AbstractInterferon tau (IFNT), produced for a short interval during early pregnancy by the ruminant embryonic trophectoderm, is essential for the maintenance of early pregnancy, but the mechanism by which it is transcriptionally regulated has not been fully determined. To identify a transcription factor(s) involved in the down‐regulation of IFNT genes, mRNAs for various known transcription factors were investigated by reverse‐transcriptase and real‐time PCR in conceptus tissues collected on Days 15, 17, and 21, or Days 17, 20, and 22 of ovine or bovine pregnancy, respectively. In particular, the T‐box protein eomesodermin (EOMES) exhibited high mRNA expression in Day 17 or 22 ovine or bovine conceptuses. Interaction between EOMES and the identified transcription factors was studied using transient transfection, revealing that ovine/bovine IFNT‐reporter transactivation was down‐regulated by EOMES. Transcription factor interactions with EOMES were further studied through immunoprecipitation, demonstrating an association between EOMES and cAMP‐response element binding protein (CREB)‐binding protein (CREBBP). Uterine flushing media collected from cyclic or early pregnancy animals were added to bovine trophoblast CT‐1 cells cultured on type‐I collagen (monoculture) or bovine uterine epithelial cells (coculture) in an attempt to regulate EOMES expression. In the coculture, but not the monoculture, addition of uterine flushing from Day 17 pregnant animals resulted in increased EOMES expression in CT‐1 cells. These results suggest that as conceptuses attach to the uterine epithelium, IFNT gene transcription is down‐regulated by an increase in EOMES expression and EOMES–CREBBP binding in the attached trophoblast cells. Mol. Reprod. Dev. 80: 371–383, 2013. © 2013 Wiley Periodicals, Inc.
Two‐dimensional J‐resolved LASER and semi‐LASER spectroscopy of human brain
Authors: Lin Meijin , Kumar Anand , Yang Shaolin 
Published: April 2013

PurposeTwo‐dimensional J‐resolved localized and semi‐localized by adiabatic selective refocusing (LASER and semi‐LASER) spectroscopy, named “J‐resolved LASER” and “J‐resolved semi‐LASER”, were introduced to suppress chemical shift artifacts, additional J‐refocused artifactual peaks from spatially dependent J‐coupling evolution, and sensitivity to radiofrequency (RF) field inhomogeneity.MethodsThree pairs of adiabatic pulses were employed for voxel localization in J‐resolved LASER and two pairs in J‐resolved semi‐LASER. The first half of t1 period was inserted between the last pair of adiabatic pulses, which was proposed in this work to obtain two‐dimensional adiabatic J‐resolved spectra of human brain for the first time. Phantom and human experiments were performed to demonstrate their feasibility and advantages over conventional J‐resolved spectroscopy (JPRESS).ResultsCompared to JPRESS, J‐resolved LASER or J‐resolved semi‐LASER exhibited significant suppression of chemical shift artifacts and additional J‐refocused peaks from spatially dependent J‐coupling evolution, and demonstrated insensitivity to the change of RF frequency offset over large bandwidth.ConclusionExperiments on phantoms and human brains verified the feasibility and strengths of two‐dimensional adiabatic J‐resolved spectroscopy at 3T. This technique is expected to advance the application of in vivo two‐dimensional MR spectroscopy at 3T and higher field strengths for more reliable and accurate quantification of metabolites. Magn Reson Med 71:911–920, 2014. © 2013 Wiley Periodicals, Inc.
Simultaneous imaging of in vivo conductivity and susceptibility
Authors: Kim Dong‐Hyun , Choi Narae , Gho Sung‐Min , Shin Jaewook , Liu Chunlei 
Published: April 2013

PurposeApproaches for quantitative mapping of electric conductivity and magnetic susceptibility using MRI have been developed independently. The purpose of this study is to present a method to simultaneously acquire information on conductivity and susceptibility and to produce images based on these properties.MethodsA 3D multiecho gradient‐echo sequence was used. Phase evolution during the multiecho was used to produce quantitative susceptibility maps, while the phase value at zero echo time was retrieved, and used to generates quantitative conductivity maps. Electromagnetic simulations were performed to evaluate the phase distribution due to conductivity variations. Phantom and in vivo data were also acquired to assess the quality of images produced.ResultsSimulations demonstrated that phase differences across objects increases with size and conductivity. For an accurate conductivity estimate, the maximum echo time was approximately equal to the true
value in order to achieve signal‐to‐noise ratio maximization. The most accurate susceptibility was obtained when separating phase contribution from conductivity. Phantom and in vivo results showed good quality images representing the electromagnetic properties.ConclusionA simultaneous quantitative electromagnetic property imaging approach is demonstrated here. The approach not only improves the efficiency of mapping electromagnetic properties, but can also improve the accuracy of susceptibility mapping by separating image phases introduced by conductivity and susceptibility. Magn Reson Med 71:1144–1150, 2014. © 2013 Wiley Periodicals, Inc.
Quantitative MRI analysis of menisci using biexponential T2* fitting with a variable echo time sequence
Authors: Juras Vladimir , Apprich Sebastian , Zbýň Štefan , Zak Lukas , Deligianni Xeni , Szomolanyi Pavol , Bieri Oliver , Trattnig Siegfried 
Published: April 2013

PurposeThe goal of this study was to differentiate between normal, degenerative meniscus, and meniscal tears using monoexponentially and biexponentially calculated T2*. Meniscal disease, characterized by an altered collagen fiber matrix, might be detectable in vivo using quantitative T2* mapping.MethodsA 3D Cartesian spoiled gradient echo technique was adapted to enable the use of a variable echo time approach in combination with a highly asymmetric readout. T2* was calculated monoexponentially and biexponentially using three‐ and five‐parametric non‐linear fits, respectively.ResultsFrom a total of 68 evaluated menisci, 48 were normal, 12 were degenerated, and eight had tears. Mean values for the short (T2*s) and long (T2*l) T2* components were as follows: in normal menisci, 0.82 ± 0.38/15.0 ± 5.4 ms, respectively; in degenerated menisci, 1.29 ± 0.53/19.97 ± 5.59 ms, respectively; and, in meniscal tears, 2.05 ± 0.73 and 26.83 ± 7.72 ms, respectively. Biexponentially fitted T2* demonstrated a greater ability to distinguish normal and degenerated menisci using receiver operating characteristic (ROC) analysis (higher area under curve as well as higher specificity and sensitivity).ConclusionThis study suggests that biexponential fitting, used for T2* calculation in the menisci, provides better results compared to monoexponential fitting. Observed changes in T2* result from the matrix reorganization in degenerative processes in the menisci, which affects the collagen fiber orientation, as well as content. Magn Reson Med 71:1015–1023, 2014. © 2013 Wiley Periodicals, Inc.
Autologous muscle‐derived cells for the treatment of female stress urinary incontinence: A 2‐year follow‐up of a polish investigation
Authors: Stangel‐Wojcikiewicz Klaudia , Jarocha Danuta , Piwowar Monika , Jach Robert , Uhl Tadeusz , Basta Antoni , Majka Marcin 
Published: April 2013

AbstractAimsWe evaluated the safety, feasibility and initial effects of therapy with muscle‐derived cells (MDCs) for women with stress urinary incontinence (SUI).MethodsMDCs were isolated from an upper‐arm muscle biopsy from 16 women with SUI. Cells were isolated by enzymatic digestion and expanded in vitro for 8–10 weeks. A quantity of 0.6–25 × 106 of the obtained cells were injected transurethrally into the urethral rhabdosphincter of women under local anesthesia. The cells were placed circumferentially at the 9, 12, and 3 O'clock positions with endoscopic guidance.ResultsThe initial results of the treatment of SUI with adult muscle‐derived stem cells demonstrate the safety and feasibility of using these cells. The 2‐year follow‐up revealed a 75% success rate, with some patients achieving complete improvement (50%) and some patients achieving partial improvement (25%), suggesting that the prospects for this method are encouraging.ConclusionsStem cell therapy promises to become a minimally invasive method for the regeneration of the urethral rhabdosphincter muscle. Injecting a small number of cells does not preclude obtaining the desired therapeutic result. Neurourol. Urodynam. 33:324–330, 2014. © 2013 Wiley Periodicals, Inc.
Effect of hospital noise on patients' ability to hear, understand, and recall speech
Authors: Pope Diana S. , Gallun Frederick J. , Kampel Sean 
Published: April 2013

AbstractSpeech intelligibility and recall were examined in normally hearing and hearing‐impaired hospitalized patients. Fifty‐two participants completed testing in a sound‐attenuated booth. While listening to a recorded male speaker talking at conversational level, participants were asked to identify and remember the last (key) word in each of a series of five sentences presented in hospital noise with or without voices at three decibel levels (59, 64, and 69 dBA). Noise level and sentence context had the largest impact on key word identification (p < .001). Noise level had the largest impact on key word recall (p < .001). Type of hospital noise and hearing loss also significantly influenced performance on both measures. These findings have implications for healthcare providers communicating with hospitalized patients. © 2013 Wiley Periodicals, Inc. Res Nurs Health 36:228–241, 2013
Thermal, mechanical and morphological properties of surface‐modified montmorillonite‐reinforced Viton rubber nanocomposites
Authors: Mali Ananda D , Shimpi Navinchandra G , Mishra Satyendra 
Published: April 2013

AbstractThermal, mechanical and morphological properties of surface‐modified montmorillonite (OMMT)‐reinforced Viton rubber nanocomposites were studied. The surface of montmorillonite was modified with a column chromatography technique using quaternary long‐chain ammonium salt as an intercalant, which resulted in uniform exchange of ions between montmorillonite and the ion‐exchange resin, and increased the d‐spacing to 31.5 Å. This improved d‐spacing was due to the use of an ion‐exchange column of sufficient length (35 cm) and diameter (5 cm) with maximum retention time for exchange of ions. The Viton nanocomposites reinforced with OMMT (3–12 wt%) were prepared using a two‐roll mill and moulded in a compression moulding machine. Tensile strength increased 3.17 times and elongation at break from 500 to 600% for 9 wt% loading of OMMT in comparison to pristine Viton rubber. Thermogravimetric analysis revealed that the presence of OMMT greatly improved the thermal stability. This improvement in properties with increasing OMMT loading was due to insertion of rubber chains between the OMMT plates with good wetting ability. Overall, at an optimum OMMT loading of 9 wt%, the properties of the Viton rubber nanocomposites improved, and subsequently worsened at 12 wt% due to agglomeration of OMMT as revealed by scanning electron microscopy and atomic force microscopy images. © 2013 Society of Chemical Industry
Polypeptoids: A perfect match for molecular definition and macromolecular engineering?
Authors: Luxenhofer Robert , Fetsch Corinna , Grossmann Arlett 
Published: April 2013

ABSTRACTPrecision synthesis of polymers has been a hot topic in recent years. While this is notoriously difficult to address for polymers with a CC backbone, Merrifield has discovered a way many decades ago for polypeptides. Using a similar approach, N‐substituted polypeptides, so‐called polypeptoids have been synthesized and studied for about 20 years. In contrast, the living ring‐opening polymerization (ROP) of N‐substituted N‐carboxyanhydrides was among the first living polymerizations to be discovered. More recently, a surge in new synthetic approaches led to the efficient synthesis of cyclic or linear multiblock copolypeptoids. Thus, polypeptoids can be synthesized either by solid phase synthesis to yield complex and exactly defined oligo‐ and small polymers or by ROP of appropriately N‐substituted N‐carboxyanhydrides (NNCA) to give linear, cyclic, or star‐like polymers. Together with an excellent biocompatibility, this polymer family may have a bright future ahead as biomaterials. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 2731–2752
A population‐based study comparing HRQoL among breast, prostate, and colorectal cancer survivors to propensity score matched controls, by cancer type, and gender
Authors: LeMasters Traci , Madhavan Suresh , Sambamoorthi Usha , Kurian Sobha 
Published: April 2013

AbstractBackgroundObjectives were to compare health‐related quality of life (HRQoL) between breast cancer survivors, prostate cancer survivors (PCS), and colorectal cancer survivors (CCS) to matched controls, stratified by short and long‐term survivors, by cancer type, and gender.MethodsBy using the 2009 Behavioral Risk Factor Surveillance System, propensity scores matched three controls to adult survivors >1 year past diagnosis (N = 11,964) on age, gender, race/ethnicity, income, insurance status, and region of the USA Chi‐square tests and logistic regression models compared HRQoL outcomes (life satisfaction, activity limitations, sleep quality, emotional support, general, physical, and mental health).ResultsAlthough all cancer survivors reported worse general health (p < 0.000) and more activity limitations (p < 0.004) than controls, these disparities decreased among long‐term survivors. Short‐term PCS and male CCS were more likely to report worse outcomes across additional domains of HRQoL than controls, but PCS were 0.61, 0.63, and 0.70 times less likely to report activity limitations, fair/poor general health, and 1–15 bad physical health days in the past month than male CCS. Breast cancer survivors and female CCS were 2.12 and 3.17, 1.58 and 1.86, and 1.49 and 153, respectively, times more likely to report rarely/never receiving needed emotional support, 1–15 bad mental health days in the past month, and not receiving enough sleep 1–15 days in the past month than PCS and male CCS.ConclusionsCancer survivors experience worse HRQoL than similar individuals without a history of cancer and the severity of affected HRQoL domains differ by time since diagnosis, cancer type, and gender. Copyright © 2013 John Wiley & Sons, Ltd.
Bacterial Decontamination of the Inner Wall of Narrow Tubes by a Nitrogen Afterglow at Atmospheric Pressure and its Relation to Local Atomic Nitrogen Concentration
Authors: Limam Soukayna , Odic Emmanuel , Kirkpatrick Michael J. , Pointu Anne‐Marie 
Published: April 2013

AbstractA quartz tube with inner wall contaminated by Escherichia coli bacteria is treated using an atmospheric pressure nitrogen afterglow flowing at 20 SLM. The biocidal efficacy is measured locally at both the input and at the output of a 57 cm tube, giving a reduction of survivors of around 5 and 4 log for a 40 min treatment time, respectively. A weak contribution of gas heating is observed and delineated from the effect uniquely due to the plasma afterglow. Based on previous work, a model allows the estimation of the variation of the axial concentration of N atoms, assumed to be the main active species, and its correlation to the biocidal effect of the afterglow. Extrapolation of the model opens the perspective of the decontamination of longer tubes with smaller diameters such as catheter and endoscope ducts.