Improved Resolution and Cost Performance of Low-Cost MEMS Seismic Sensor through Parallel Acquisition.

In earthquake monitoring, an important aspect of the operational effect of earthquake intensity rapid reporting and earthquake early warning networks depends on the density and performance of the deployed seismic sensors. To improve the resolution of seismic sensors as much as possible while keeping costs low, in this article the use of multiple low-cost and low-resolution digital MEMS accelerometers is proposed to increase the resolution through the correlation average method. In addition, a cost-effective MEMS seismic sensor is developed.

Postinfectious inflammatory response syndrome in HIV-uninfected and nontransplant men after cryptococcal meningitis.

The aim of our study was to describe the characteristics of postinfectious inflammatory response syndrome (PIIRS) in HIV-uninfected and nontransplant men after cryptococcal meningitis (CM).  A case-control study was designed to compare HIV-uninfected and nontransplant male CM patients with and without PIIRS. CM-PIIRS patients had increased rates of hearing loss, V-P shunt placement, amphotericin B treatment, higher cerebrospinal fluid pressures and counts in the first CM episode.

A novel three-dimensional zinc(II) coordination polymer based on 3,3'-{[1,3-phenylenebis(methylene)]bis(oxy)}dibenzoic acid and 1,4-bis(pyridin-4-yl)benzene: synthesis, crystal structure and photocatalytic properties.

A novel three-dimensional (3D) Zn coordination polymer, namely, poly[[[1,4-bis(pyridin-4-yl)benzene](μ-3,3'-{[1,3-phenylenebis(methylene)]bis(oxy)}dibenzoato)zinc(II)] 1,4-bis(pyridin-4-yl)benzene], {[Zn(CHO)(CHN)]·CHN} or {[Zn(PMBD)(DPB)]·DPB}, 1, where HPMBD is 3,3'-{[1,3-phenylenebis(methylene)]bis(oxy)}dibenzoic acid and DPB is 1,4-bis(pyridin-4-yl)benzene, has been synthesized by self-assembly using zinc nitrate, a semi-rigid dicarboxylic acid and a nitrogen-containing ligand. The single-crystal X-ray structure determination indicates that 1 possesses an intriguing 3D architecture with a 4-connected uninodal cds topology, which is constructed from dinuclear {Zn} clusters and V-shaped PMBD linkers. Compound 1 exhibits excellent photocatalytic activity on the degradation of the organic dyes Rhodamine B (RhB), Rhodamine 6G (Rh6G) and Methyl Red (MR).

Two Lanthanide Metal⁻Organic Frameworks Based on Semi-Rigid T-Shaped Tricarboxylate Ligand: Syntheses, Structures, and Properties.

By using a semi-rigid tripodal ligand 5-(4-carboxybenzyloxy)isophthalic acid (HL) and lanthanide metal ions (Nd, Tb), two novel lanthanide metal-organic frameworks, namely, {[NdL(DMF)4] DMF} (), and {TbL(DMF)(HO)} (), were synthesized under mild solvothermal conditions and structurally characterized by X-ray single crystal diffraction. Compounds and are isostructural, in which L ligands linked dinuclear lanthanide metal-carboxylate units to form non-interpenetrated 3D network with (3,6)-connected topology. Luminescent investigations reveal that compound displays the near-infrared emission at room temperature, and compound can be employed as selective probe for CrO anion in aqueous solution based on luminescence quenching.

Ventriculoperitoneal shunts in non-HIV cryptococcal meningitis.

Background: Persistent and uncontrollable intracranial hypertension (ICH) and difficulty in reducing Cryptococcus count are severe problems in cryptococcal meningitis (CM) patients. The therapeutic effects of ventriculoperitoneal shunts (VPS) in non-HIV CM patients are not fully known, and the procedure is somewhat unusual. Here, our study offers a review to investigate the role of VPS in non-HIV CM.

Comprehensive analysis of patients with neuromyelitis optica spectrum disorder (NMOSD) combined with chronic hepatitis B (CHB) infection and seropositive for anti-aquaporin-4 antibody.

Previous research indicated the association between hepatitis B virus (HBV) infection/vaccination and the onset of demyelinating diseases. However, most of these studies were single case reports, and comprehensive data are still scarce. Here we present a comprehensive analysis of 10 patients with neuromyelitis optica spectrum disorder (NMOSD) combined with chronic hepatitis B (CHB) infection and seropositive for anti-aquaporin-4 antibody (AQP4-Ab).