Dynamic Response of Gradient Aluminum Foam Sandwich Tubes under External Explosive Loads.

In this paper, we numerically investigate the dynamic response and explosion resistance of gradient aluminum foam sandwich tubes subjected to external blast loads. Based on 3D-Voronoi technology, we construct density-graded aluminum foam cores to systematically explore the influence of core density distribution, density gradient, and average relative density on the protective performance of these structures. Our primary objective is to identify optimal design parameters that maximize explosion mitigation capabilities while balancing energy absorption and specific energy absorption capacities.

Synthesis and Characterization of Sodium Lignosulfonate-Based Phosphorus-Containing Intermediates and Its Composite Si-P-C Silicone-Acrylic Emulsion Coating for Flame-Retardant Plywood.

Through the substitution reaction between 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and sodium lignosulfonate (LS), a novel phosphorus-containing sodium lignosulfonate (DAL) was successfully synthesized via the solvothermal method and used as a multifunctional flame retardant to prepare a novel silicone-acrylic emulsion (SAE) composite Si-P-C coating. The structure of DAL was determined by X-ray diffraction (XRD), attenuated total reflection infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), and nuclear magnetic resonance (solid-state C NMR and P NMR). The results demonstrated that incorporating an appropriate dosage of DAL (0.

Explosive property and combustion kinetics of grain dust with different particle sizes.

The effect of particle size on the combustion and explosion properties of grain dust is investigated by Hartmann tube, cone calorimeter (CC), and thermogravimetry (TG), it aims to provide fundamental experimental data of grain dust for an in-depth study on its potential risk. The fine-grain dust facilitates the decrease in the minimum ignition temperature (MIT) of dust layer and dust cloud, as well as the obvious increases in the maximum explosion pressure (climbs from 0.36 to 0.

MicroRNAs Are Involved in the Regulation of Ovary Development in the Pathogenic Blood Fluke Schistosoma japonicum.

Schistosomes, blood flukes, are an important global public health concern. Paired adult female schistosomes produce large numbers of eggs that are primarily responsible for the disease pathology and critical for dissemination. Consequently, understanding schistosome sexual maturation and egg production may open novel perspectives for intervening with these processes to prevent clinical symptoms and to interrupt the life-cycle of these blood-flukes.

Evaluation of protective immune response in mice by vaccination the recombinant adenovirus for expressing Schistosoma japonicum inhibitor apoptosis protein.

Schistosomiasis is a worldwide parasitic disease, and while it can be successfully treated with chemotherapy, this does not prevent reinfection with the parasite. Adenovirus vectors have been widely used for vaccine delivery, and a vaccination approach has the potential to prevent infection with Schistosoma. Here, we developed a recombinant adenoviral vector that expresses Schistosoma japonicum inhibitor apoptosis protein (Ad-SjIAP) and assessed its immunoprotective functions against schistosomiasis in mice.

Molecular characterization of a cytokine-induced apoptosis inhibitor from Schistosoma japonicum.

Cytokine-induced apoptosis inhibitor (CIAP) is a novel antiapoptotic molecule, which is different to inhibitor of apoptosis protein or B-cell lymphoma 2. CIAP was originally identified as a molecule that conferred resistance to apoptosis induced by growth factor starvation. However, it remains to be undercharacterized in schistosomes.

Synaptic drive at developing synapses: transient upregulation of kainate receptors.

At the onset of a period of intense synaptic refinement initiated by synchronized eye opening (EO), rapid changes in postsynaptic NMDA receptor and AMPA receptor currents (NMDARcs and AMPARcs) occur within the superficial visual layers of the rodent superior colliculus (sSC; Lu and Constantine-Paton [2004]: Neuron 43:237-249). Subsequently, evoked non-NMDARc amplitudes increase, but by 2 weeks after EO (AEO) they decrease significantly. Here, using whole-cell patch-clamp recording, we demonstrate that small, slowly desensitizing excitatory kainate receptor currents (KARcs) are responsible for the rise and subsequent fall in non-NMDARcs.

[Exercises at different intensities and sequential changes of rat skeletal muscle cell apoptosis].

Objective: To study the effect of exercises of different intensities on rat skeletal muscle cell apoptosis.

Methods: Rat models of exhaustive exercise-induced skeletal muscle injury was established using tread mill exercises at different speeds, and the skeletal muscle cell apoptosis was detected using propidium iodide (PI) staining and flow cytometry.

Result: No obvious gastrocnemius cell apoptosis was observed in rats with normal exercise (P>0.