Uterine mesothelial cysts represent a diagnostic challenge because of their low incidence, with very few cases reported in the English literature.
We report the case of a 27-year-old nullipara woman ...complaining of self-discovery of a mass in the abdomen for 1 week. Supersonic examination revealed a pelvic cystic lesion measuring 8.9 × 8.2 cm. The patient underwent exploratory single-port laparoscopic surgery and had a large uterine cystic mass located within the posterior wall of the uterus.
After excision of the uterine cyst, the final histopathological diagnosis was uterine mesothelial cyst.
We treated her with a single-port laparoscopic uterine cystectomy.
Close follow-up of the case for 2 years showed that the patient was free of any symptoms, and no recurrence was noted.
Uterine mesothelial cysts are extremely rare. They are often misdiagnosed by clinicians as extrauterine masses or cystic degeneration of leiomyomas. This report aims to share a rare case of uterine mesothelial cyst and improve gynecologists' academic vision of the disease.
A PPh3AuB(C6F5)4-catalyzed reaction of enynals and alkenes for the construction of binaphthyl derivatives was described. This transformation was achieved through o-Quinodimethane (o-QDM) ...intermediate’s extended conjugated addition process. The reaction has the advantages of wide substrate scopes, mild reaction conditions, high efficiency, and good scalability.
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IJS, KILJ, NUK, PNG, UL, UM
► miR-195 is downregulated in human CRC tissues and cell lines. ► miR-195 reduces cell viability, promotes apoptosis and suppresses tumorigenicity. ► Antiapoptotic Bcl-2 is a direct target of ...miR-195. ► Proapoptotic effect of miR-195 is mainly through targeting Bcl-2.
Deregulated microRNAs and their roles in cancer development have attracted much attention. In the present study, we analyzed the roles of miR-195 in colorectal cancer pathogenesis, as its participation in some other types of cancer has been suggested by previous reports. By comparing miR-195 expression in 81 human colorectal cancer tissues and matched non-neoplastic mucosa tissues, we found that miR-195 was downregulated in cancer tissues. And restoration of miR-195 in colorectal cancer cell lines HT29 and LoVo could reduce cell viability, promote cell apoptosis and suppress tumorigenicity. Moreover, important antiapoptotic Bcl-2 was identified to be directly targeted by miR-195, and miR-195 was further suggested to exert its proapoptotic function mainly through targeting Bcl-2 expression. Taken together, our study provides important roles of miR-195 in colorectal cancer pathogenesis and implicates its potential application in cancer therapy.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
The first straightforward strategy for the synthesis of 1,4-dicarbonyl
-alkenes has been developed
an electrochemical cross-coupling reaction of sulfoxonium ylides and alkynes with water. The ...metal-free protocol showed an easy-to-handle nature, good functional group tolerance, and high
-stereoselectivity, which is rare in previous cases. The proposed reaction mechanism was convincingly established by carrying out a series of control experiments, cyclic voltammetry experiments, and density functional theory (DFT) studies.
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IJS, KILJ, NUK, UL, UM, UPUK
This paper introduces an innovative, compact, and high-gain metasurface antenna, covering both the 24 GHz millimeter wave (mmWave) radar band and the 5 G n257 and n258 bands. The proposed metasurface ...antenna consists of a wideband stacked patch antenna and a dual-layer metasurface to focus its radiation beams for multiple mmWave bands. The operating frequency can be slightly shifted by altering the distance between the feeder and the metasurface. The distribution of the metasurface unit cells is designed based on a simplified phase compensation formula. The dimension of the fabricated feeder is 6 mm × 6 mm, and the metasurface occupies a 65 mm × 65 mm radome area. Experimental results demonstrate a wide bandwidth from 23.5 GHz to 29.1 GHz for the feeder, and impressive maximum gains of 19.7 dBi and 19.5 dBi for the lower band and higher band of the metasurface antenna are achieved simultaneously. The frequency reconfiguration ability was characterized by a 750 MHz frequency shift with every 1 mm distance adjustment. The compact size and high gain performance of the proposed design underscore its potential for practical applications in millimeter wave joint communication and radar sensing systems.
The successful colonization of plant growth promoting rhizobacteria (PGPR) in the rhizosphere is an initial and compulsory step in the protection of plants from soil-borne pathogens. Therefore, it is ...necessary to evaluate the role of root exudates in the colonization of PGPR. Banana root exudates were analyzed by high pressure liquid chromatography (HPLC) which revealed exudates contained several organic acids (OAs) including oxalic, malic and fumaric acid. The chemotactic response and biofilm formation of Bacillus amyloliquefaciens NJN-6 were investigated in response to OA's found in banana root exudates. Furthermore, the transcriptional levels of genes involved in biofilm formation, yqxM and epsD, were evaluated in response to OAs via quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Results suggested that root exudates containing the OAs both induced the chemotaxis and biofilm formation in NJN-6. In fact, the strongest chemotactic and biofilm response was found when 50 μM of OAs were applied. More specifically, malic acid showed the greatest chemotactic response whereas fumaric acid significantly induced biofilm formation by a 20.7-27.3% increase and therefore biofilm formation genes expression. The results showed banana root exudates, in particular the OAs released, play a crucial role in attracting and initiating PGPR colonization on the host roots.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
•Biomass accumulation is mainly controlled by substrate transport under low-flow condition.•Biomass accumulation is limited by shear stresses at higher velocity.•Shearing-induced biomass detachment ...enhanced the local hydraulic heterogeneity.•Flow velocity can significantly affect the upscaling of bioclogging models.
Bioclogging, resulting from excess biomass growth in porous media, can influence flow, solute transport, and biogeochemical reactions in natural and remedial subsurface systems. In this study, we investigated bioclogging in heterogeneous porous media using a reactive-transport model, with a focus on the effect of shear stresses on the spatial changes of biomass accumulation and hydraulic properties. The results show that, when the shearing-induced detachment was negligible, the accumulation of biomass was mainly controlled by substrate transport. Newly generated biomass was then accumulated in the regions with high hydraulic conductivity due to the fast substrate supply, resulting in a homogenization of hydraulic conductivity. When the shearing-induced detachment was significant, newly generated biomass was less accumulated in the flow paths with higher hydraulic conductivity, and more in the pore regions with relatively low hydraulic conductivity, resulting in the increase of heterogeneity in hydraulic conductivity. The results were then used to establish a macroscopic correlation between the reduction of porosity and the reduction of hydraulic conductivity as a result of biomass growth, and to identify factors controlling such a correlation. A correlation was established and was found to be significantly affected by flow velocity and shearing-induced biomass detachment. Overall, this study indicated that flow-induced shearing is important in understanding bioclogging and its effect on hydraulic conductivity and water flow in porous media.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
This paper proposes a forward attention method for the sequence-to-sequence acoustic modeling of speech synthesis. This method is motivated by the nature of the monotonic alignment from phone ...sequences to acoustic sequences. Only the alignment paths that satisfy the monotonic condition are taken into consideration at each decoder timestep. The modified attention probabilities at each timestep are computed recursively using a forward algorithm. A transition agent for forward attention is further proposed, which helps the attention mechanism to make decisions whether to move forward or stay at each decoder timestep. Experimental results show that the proposed forward attention method achieves faster convergence speed and higher stability than the baseline attention method. Besides, the method of forward attention with transition agent can also help improve the naturalness of synthetic speech and control the speed of synthetic speech effectively.
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•A simple amorphous TiO2/g-C3N4 composite photocatalyst was fabricated.•This photocatalyst has the excellent specific surface area and narrow band gap.•XPS and XAFS results suggest ...that Re(VII) should be mainly reduced to Re(IV).•It exhibits the extremely slow re-dissolution of Re(IV) when compared with P25.•This photocatalyst containing amorphous TiO2 can be used for Tc elimination.
Although effective photocatalytic removal for aqueous ReO4− (as a chemical analogue of TcO4−) have been established, photocatalysts are not satisfactory for further applications in term of low light harvesting efficiency and fast re-dissolution of ReO2·nH2O. Herein, the amorphous TiO2/g-C3N4 composites are fabricated by a simple hydrolysis approach, producing the amorphous TiO2/30 wt% g-C3N4 (TCN-3) composite with larger specific surface area (~456 m2 g−1), narrow band gap (~2.67 eV) and excellent light-capturing ability when compared with commercial P25. Lower recombination efficiency of photo-generated electron-hole based on the Z-scheme mechanism between amorphous TiO2 and g-C3N4 was demonstrated by electron paramagnetic resonance and photoelectrochemical analysis. In addition, the as-synthesized TCN-3 exhibits an excellent photocatalytic reduction of Re(VII) in ambient air with the highest removal percentage of ~90% as compared with crystalline TiO2/g-C3N4, and can be regenerated even after eight recycles. X-ray absorption spectroscopy confirmed that the extremely slow re-dissolution of Re(IV) resulted from both shortening of ReO2·nH2O chains (decrease in coordination number of Re-Re) and association of Re(IV) with amorphous TiO2 in TCN-3 (formation of Re-Ti bond). The overall results further facilitate the photocatalytic reduction and elimination for rhenium/technetium, and open the wide-range applications for photocatalysis in the disposal of some radioactive elements.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
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