Today's Hours: 10:00am - 6:00pm
Lane Medical Library

Search

Filter Results

Did You Mean:

Search Results

Sort by
relevance
  • Article
    Boontongto T, Santaladchaiyakit Y, Burakham R.
    Talanta. 2024 May 01;271:125618.
    Digital Access Access Options
  • Article
    Chen W, Wang F, Gu Z, Li Q.
    Chemosphere. 2020 Apr;245:125618.
    Semi-aerobic aged refuse biofilters (SAARB) are known to efficiently remove organic matter, nitrogenous substances, and anions from landfill leachate. However, long-term recirculation of mature landfill leachate inevitably leads to accumulation of pollutants and decreases treatment capacity. In this study, the washing action provided by domestic sewage was used to recover and even enhance the treatment performance of SAARBs treating mature landfill leachate. Three SAARB columns were operated for 300 d after which a "Recirculation-Washing-Recirculation" sequence was followed. In the first recirculation period (22 d), removal of chemical oxygen demand (COD) and total nitrogen (TN) decreased from ca. 90% and 60%, respectively, initially to about 75% and less than 20%, respectively. Thereafter, washing (20 d) of the SAARBs was accomplished by applying domestic sewage. In the subsequent second recirculation period (30 d), the SAARBs were operated at the same hydraulic loading as used initially, but achieved high (ca. 90%) COD and relatively high (ca. 59%-76%) TN removal, including degradation of refractory organic matter such as humic- and fulvic-like substances. Overall, the mechanisms of the treatment performance recovery (including organics degradation and nitrification-denitrification) using domestic sewage can be attributed to three main effects: (1) some accumulated pollutants were washed out, thereby leading to recovery of the adsorption ability of aged refuse; (2) the inhibition of bio-refractory organics stress on microbial activities was mitigated by domestic sewage washing; and (3) the wash out of some accumulated salts (e.g., chloride and sulfate ions) probably helped the microbial activity recover.
    Digital Access Access Options
  • Article
    Ma C, Liu F, Xie P, Zhang K, Yang J, Zhao J, Zhang H.
    J Hazard Mater. 2021 08 05;415:125618.
    Atmospheric deposition is the primary source of external environmental media for lead (Pb) influx in wheat grains. However, the mechanisms of Pb grain absorption remains unclear. We explored this mechanism through comparative experiments, involving defoliating leaf blades (TG) and a control group (CK) of field wheat after the anthesis stage. Scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy analysis displayed that leaves and ears can directly absorb atmospheric deposition Pb through stomata. Compared with CK, the yield, grain Pb content, and grain Pb accumulation of TG wheat were significantly decreased by 13.25%, 22.10%, and 32.58%, respectively. Combined with the Pb isotope analysis, the ear had the highest contribution to grain Pb followed by leaf and root. Simultaneously, the absorption rate of grain Pb demonstrated a dynamic trend of "N" shape. Dominant contribution periods of the root, leaf, and ear organs to grain Pb accumulation were different. Unlike the root system, the contribution of the aboveground to grain Pb increased gradually, and the contribution of leaf and ear to grain Pb were mainly concentrated in the early and late filling stage, respectively. Our findings can provide a theoretical basis for the control of Pb pollution in grains.
    Digital Access Access Options
  • Article
    Li G, Meng X, Wang J, Wang Q, Zhou J, Wang C, Wu Q, Wang Z.
    Food Chem. 2020 Mar 30;309:125618.
    In this study, a porous organic polymer (denoted as Car-DMB) was fabricated by a simple one-step crosslinking polymerization of carbazole and p-dimethoxybenzene for the first time. Then the Car-DMB was served as adsorbent of solid phase extraction to enrich triazine herbicides from white gourd, tomato and soybean milk samples prior to their determination by high performance liquid chromatography. Under the optimal conditions, the response linearity was in the range of 0.3-100.0 ng g-1 for white gourds and tomato samples, and 0.5-100.0 ng mL-1 for soybean milk, with the coefficient of determination higher than 0.996. The detection limits were 0.1-0.2 ng g-1 for white gourd and tomato samples, and 0.15-0.3 ng mL-1 for soybean milk. The adsorption mechanism of the Car-DMB for the triazines was attributed to the strong H-bonding and weak π-π interactions. The efficient extraction for several other compounds demonstrated that Car-DMB holds great potential for diverse analysis applications.
    Digital Access Access Options
  • Article
    Gong P, Liu H, Wang G, Yao J, Dai X.
    Bioresour Technol. 2021 Nov;339:125618.
    In this study, the feasibility of employing hydrothermal pretreatment (HTPT) to improve the composting of oxytetracycline fermentation residue (OFR) was evaluated by investigating the depletion of oxytetracycline (OTC) and evolution of dissolved organic matter (DOM). HTPT drastically declined the final content of OTC and its main transformation intermediates in OFR compost from 89.96 to 2.61 mg/kg. Although HTPT slightly increased the DOM content and significantly decreased the contents of biodegradable and humified compounds in OFR compost, it did not significantly change the germination index of OFR compost. Nevertheless, the time required for the overall pattern of DOM parameters to reach stabilization was shortened from 28 to 14 days by HTPT. Taken together, although HTPT did not change the maturity degree of OFR compost, it obviously shortened the OFR composting cycle and lowered the potential risk of OFR compost, confirming that HTPT could efficiently improve the OFR composting.
    Digital Access Access Options
  • Article
    Lv D, Gao J, Shao Y, Wang Y, Pan J, Cong Y, Lv SW.
    Environ Pollut. 2024 Dec 31;367:125618.
    Herein, we adopt a feasible method to synthesize the CuO/Fe2O3 composite with heterostructure. Owing to the significant differences in work functions, an internal electric field is built at the interface of heterojunction after the combination of CuO with Fe2O3, which can reduce interface resistance and accelerate charge transfer. Interestingly, under the induction of electrostatic interaction provided by internal electric field, the CuO/Fe2O3 composite will form electron-rich and electron-deficient active zones. More importantly, the peroxymonosulfate (PMS) can be oxidized by the CuO with electron-deficient active zone to generate SO5•‒, subsequently converting into 1O2. Meanwhile, the Fe2O3 component with electron-rich active zone can provide electrons for PMS to achieve the heterolysis of Fe-O-O, thereby producing the high-valent metal complex (namely ≡ Fe5+=O). Consequently, the CuO/Fe2O3-2-mediated PMS system with good anti-interference ability displays excellent performance in wastewater treatment. Benefiting from the electrophilic reaction of 1O2 and ≡ Fe5+=O, various typical organic pollutants can be ultimately mineralized into CO2, H2O and other nontoxic by-products by the CuO/Fe2O3-2-mediated PMS system. In short, current work shares some novel insights into the effect of internal electric field on PMS activation, which can provide valuable references for future research.
    Digital Access Access Options
  • Article
    Mishra N, Lin CC, Chang HT.
    ScientificWorldJournal. 2014;2014:125618.
    Human activity, life span, and quality of life are enhanced by innovations in science and technology. Aging individual needs to take advantage of these developments to lead a self-regulated life. However, maintaining a self-regulated life at old age involves a high degree of risk, and the elderly often fail at this goal. Thus, the objective of our study is to investigate the feasibility of implementing a cognitive inference device (CI-device) for effective activity supervision in the elderly. To frame the CI-device, we propose a device design framework along with an inference algorithm and implement the designs through an artificial neural model with different configurations, mapping the CI-device's functions to minimise the device's prediction error. An analysis and discussion are then provided to validate the feasibility of CI-device implementation for activity supervision in the elderly.
    Digital Access Access Options
  • Article
    Kaur K, Zheng NY, Smith K, Huang M, Li L, Pauli NT, Henry Dunand CJ, Lee JH, Morrissey M, Wu Y, Joachims ML, Munroe ME, Lau D, Qu X, Krammer F, Wrammert J, Palese P, Ahmed R, James JA, Wilson PC.
    PLoS One. 2015;10(5):e0125618.
    Breakdown of B cell tolerance is a cardinal feature of systemic lupus erythematosus (SLE). Increased numbers of autoreactive mature naïve B cells have been described in SLE patients and autoantibodies have been shown to arise from autoreactive and non-autoreactive precursors. How these defects, in the regulation of B cell tolerance and selection, influence germinal center (GC) reactions that are directed towards foreign antigens has yet to be investigated. Here, we examined the characteristics of post-GC foreign antigen-specific B cells from SLE patients and healthy controls by analyzing monoclonal antibodies generated from plasmablasts induced specifically by influenza vaccination. We report that many of the SLE patients had anti-influenza antibodies with higher binding affinity and neutralization capacity than those from controls. Although overall frequencies of autoreactivity in the influenza-specific plasmablasts were similar for SLE patients and controls, the variable gene repertoire of influenza-specific plasmablasts from SLE patients was altered, with increased usage of JH6 and long heavy chain CDR3 segments. We found that high affinity anti-influenza antibodies generally characterize the plasmablast responses of SLE patients with low levels of autoreactivity; however, certain exceptions were noted. The high-avidity antibody responses in SLE patients may also be correlated with cytokines that are abnormally expressed in lupus. These findings provide insights into the effects of dysregulated immunity on the quality of antibody responses following influenza vaccination and further our understanding of the underlying abnormalities of lupus.
    Digital Access Access Options
  • Article
    Wang Y, Zhong Z, Wang R, Munawar N, Zan L, Zhu J.
    Int J Biol Macromol. 2023 Aug 15;246:125618.
    Cultured meat technology intends to manufacture meat by cultivating muscle stem cells in vitro, which is an emerging methodology in meat production. However, the insufficient stemness of bovine myoblasts cultivated in vitro declined the ability of cell expansion and myogenic differentiation, which limited the production of cultured meat. Therefore, in this study, we introduced proanthocyanidins (PC, natural polyphenolic compounds) and dialdehyde chitosan (DAC, natural polysaccharides) to explore the effects of proliferation and differentiation of bovine myoblasts in vitro. The experiment results revealed that PC and DAC promoted cell proliferation by improving the transition from G1 to the S phase as well as cell division in G2. Meanwhile, the myogenic differentiation of cells was further boosted by the combined PC and DAC up-regulation of MYH3 expression. Moreover, the study revealed the synergistic effect of PC and DAC on enhancing the structural stability of collagen, and bovine myoblasts demonstrated excellent growth and dispersion ability on collagen scaffolds. It is concluded that both PC and DAC promote the proliferation and differentiation of bovine myoblasts, contributing to the development of cultured meat production systems.
    Digital Access Access Options
  • Article
    Banerjee A, Das B.
    Spectrochim Acta A Mol Biomol Spectrosc. 2025 Mar 15;329:125618.
    Pyrene fluorescence in aqueous solutions of two surface active ionic liquids, namely, 1-decyl-3-methylimidazolium chloride, and 1-hexadecyl-3-methylimidazolium chloride was investigated in presence of a biopolymer sodium alginate. The principal objective of this study was to explore the influence of the length of the hydrocarbon tails of these surface active ionic liquids on the possible location of the probe (pyrene) molecules in presence of the additive. While an abrupt decrease in the values of the ratio of the intensity of the first vibronic band to that of the third band of pyrene emission spectrum with concentration was observed for 1-hexadecyl-3-methylimidazolium chloride in presence of sodium alginate like the polymer-free case reported earlier, there was a peculiar reversal for 1-decyl-3-methylimidazolium chloride + sodium alginate. The former system manifested a usual sigmoidal profile, but in contrast, the later revealed an inverse sigmoidal dependence. The results indicated preferential incorporation of the pyrene probe into the hydrophobic microenvironment of the 1-hexadecyl-3-methylimidazolium chloride micelles. On the other hand, the solubilized pyrene molecules could have been accommodated in a layer within the 1-decyl-3-methylimidazolium chloride micelles closer to the micellar surface. Fluorescence measurements also helped ascertain the aggregation numbers of the micelles in presence of sodium alginate.
    Digital Access Access Options
  • Book
    Marcela Fuentes.
    Summary: "A novel with alternating timelines in which the consequences of one old woman's questionable curse reverberate through the generations of a Tejano family"-- Provided by publisher. "In 1951, a mysterious old woman confronts Pilar Aguirre in the small border town of La Cienega, Texas. The old woman is sure Pilar stole her husband and, in a heated outburst, lays a curse on Pilar and her family. More than forty years later, Lulu Muñoz is dodging chaos at every turn: her troubled father's moods, his rules, her secret life as singer in a punk band, but most of all her upcoming quinceañera. When her beloved grandmother passes away, Lulu finds herself drawn to the glamorous stranger who crashed the funeral and who lives alone and shunned on the edge of town. Their unexpected kinship picks at the secrets of Lulu's family's past. As the quinceañera looms--and we move between these two strong, irascible female voices--one woman must make peace with the past, and one girl pushes to embrace her future. Rich with cinematic details--from dusty rodeos to the excitement of a Selena concert and the comfort of conjunto ballads played at family gatherings--this memorable debut is a love letter to the Tejano culture and community that sustain both of these women as they discover what family means." -- Provided by publisher.
    Digital Access ProQuest Ebook Central 2024
    Limited to 1 simultaneous user