Efficient removal of crystal violet using Fe3O4-coated biochar: the role of the Fe3O4 nanoparticles and modeling study their adsorption behavior

Recent experimental studies of hetero-synaptic interactions in various systems have shown the role of signaling in the plasticity, challenging the conventional understanding of Hebb's rule. It has also been found that activity plays a major role in plasticity, with neurotrophins acting as molecular signals translating activity into structural changes. Furthermore, role of synaptic efficacy in biasing the outcome of competition has also been revealed recently. Motivated by these experimental findings we present a model for the development of simple cell receptive field structure based on the competitive hetero-synaptic interactions for neurotrophins combined with cooperative hetero-synaptic interactions in the spatial domain. We find that with proper balance in competition and cooperation, the inputs from two populations (ON/OFF) of LGN cells segregate starting from the homogeneous state. We obtain segregated ON and OFF regions in simple cell receptive field. Our modeling study supports the experimental findings, suggesting the role of synaptic efficacy and the role of spatial signaling. We find that using this model we obtain simple cell RF, even for positively correlated activity of ON/OFF cells. We also compare different mechanism of finding the response of cortical cell and study their possible role in the sharpening of orientation selectivity. We find that degree of selectivity improvement in individual cells varies from case to case depending upon the structure of RF field and type of sharpening mechanism.

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Adsorption Behavior of Carbamazepine on Zn-MOFs Derived Nanoporous Carbons: Defect Enhancement, Role of N Doping and Adsorption Mechanism

SSRN Electronic Journal ◽

10.2139/ssrn.3960523 ◽

2021 ◽

Author(s):

Dezhi Chen ◽

Yawen Yu ◽

Shasha Xie ◽

Qing Sun ◽

Zhixia Zhang ◽

...

Keyword(s):

Adsorption Mechanism ◽

Adsorption Behavior ◽

Nanoporous Carbons ◽

N Doping

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Enhanced intermediate-temperature CO2splitting using nonstoichiometric ceria and ceria–zirconia

Physical Chemistry Chemical Physics ◽

10.1039/c7cp04789d ◽

2017 ◽

Vol 19 (37) ◽

pp. 25774-25785 ◽

Cited By ~ 15

Author(s):

Zhenlong Zhao ◽

Mruthunjaya Uddi ◽

Nikolai Tsvetkov ◽

Bilge Yildiz ◽

Ahmed F. Ghoniem

Keyword(s):

Critical Role ◽

Intermediate Temperature ◽

Modeling Study

Combined experimental and modeling study of CO2splitting on CeO2and Ce0.5Zr0.5O2reveals the critical role of CO32−adsorbate for the splitting chemistry.

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The role of the dorsal cochlear nucleus in the perception of voicing contrasts in initial English stop consonants: A computational modeling study

The Journal of the Acoustical Society of America ◽

10.1121/1.399382 ◽

1990 ◽

Vol 87 (4) ◽

pp. 1817-1817

Author(s):

Michael J. Pont

Keyword(s):

Computational Modeling ◽

Cochlear Nucleus ◽

Dorsal Cochlear Nucleus ◽

Stop Consonants ◽

Modeling Study

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Efficient removal of Pb(ii) ions using manganese oxides: the role of crystal structure

RSC Advances ◽

10.1039/c7ra05955h ◽

2017 ◽

Vol 7 (65) ◽

pp. 41228-41240 ◽

Cited By ~ 32

Author(s):

Haipeng Zhang ◽

Anbang Wu ◽

Heyun Fu ◽

Ling Zhang ◽

Hui Liu ◽

...

Keyword(s):

Crystal Structure ◽

Adsorption Capacity ◽

Manganese Oxides ◽

Efficient Removal

The adsorption of Pb(ii) by MnO2 depends on crystal structure; δ-MnO2 exhibited higher adsorption capacity than α-, β-, γ- and λ-MnO2.

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Lysine-Functionalized Layered Double Hydroxides For The Antibiotics’ Efficient Removal: Controllable Fabrication Via BBD Model And Removing Mechanism

10.21203/rs.3.rs-1115746/v1 ◽

2021 ◽

Author(s):

Yuying Hu ◽

Susu Liu ◽

Min Qiu ◽

Xiaohuan Zheng ◽

Xiaoming Peng ◽

...

Keyword(s):

Layered Double Hydroxides ◽

Adsorption Mechanism ◽

Electrostatic Attraction ◽

Adsorption Behavior ◽

Molar Ratio ◽

Order Kinetic ◽

Efficient Removal ◽

Adsorption Processes ◽

Controllable Fabrication ◽

Double Hydroxides

Abstract Ly @ FeZn layered double hydroxides (LDHs) controllable fabrication based on Box-Behnken Design (BBD) model was fabricated, and presented stable and efficient removal performance for Ciprofloxacin (CIP), Norfloxacin (NOR) and Ofloxacin (OFL) removal. It should be noted that Ly @ FeZn had different adsorption behavior towards CIP, NOR and OFL. Furthermore, the Ly @ FeZn was characterized by SEM, XRD, FT-IR and XPS. Results revealed the optimized fabrication condition (temperature of 60 °C, Fe / Zn molar ratio of 0.5 and the lysine dosage of 5.8 mmol) for the removing efficient. The highest adsorption capacity of CIP, NOR and OFL were 193.83, 190.20 and 62.12 mg/g, respectively. Adsorption kinetics of both CIP and NOR were well simulated with the pseudo-first-order kinetic model, while that of OFL was well-described by the pseudo-second-order. Moreover, the adsorption thermodynamics of CIP and NOR on Ly @ FeZn indicated that the adsorption processes were exothermal, feasible and spontaneous. It was worth noting that the adsorption mechanism of Ly @ FeZn for CIP and NOR were the synergistic reaction of electrostatic attraction, chemical bonding and flocculation. On the other side, the adsorption behavior of OFL was relatively low, and the adsorption mechanism was only electrostatic attraction.

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