Triaqua­(2,2′-bipyridine)(5-nitro­isophthal­ato-κO)nickel(II) monohydrate

In the title compound, [Ni(C8H3NO6)(C10H8N2)(H2O)3]·H2O, the NiII cation is six-coordinated by a chelating 2,2′-bipyridine ligand, one carboxyl­ate O atom from a 5-nitro­isophthalate dianion and three water mol­ecules, with a slightly distorted cis-NiN2O4 octa­hedral geometry. The neutral complex is isolated, in contrast to coordination polymers formed by MnII, CoII and CuII with the same ligand set, but forms an extensive network of O—H⋯O hydrogen bonds between the coordinated and uncoordinated water mol­ecules and carboxyl­ate groups of the 5-nitro­isophthalate ions

Changes and mechanisms of apparent resistivity before earthquakes of MS6.0–6.9 on the Chinese mainland

China has been conducting fixed continuous apparent resistivity observations since 1967. Up to June 2022, 45 earthquakes with magnitudes of MS6.0–6.9 have occurred within a range of approximately 250 km from normal operating stations. Through literature investigation and data analysis, monitoring stations counted 61 short-medium-term apparent resistivity anomalous changes (i.e., 44 decrease changes, 15 increase changes, and 2 perturbance changes) appearing before 39 of these earthquakes. In this study, we utilize a fault virtual dislocation model to understand the relative deformations around the epicenters before these earthquakes. The comparison results showed that 36 of the 44 decrease changes were in areas with compression enhancement and that 9 of the 15 increase changes were in areas with relative dilatancy. The results from rock petrophysical experiments and the resistivity model of the cracked medium showed decreased changes in the resistivity of water-bearing geomaterials during the successive loading of compressive stress, while the resistivity showed increased changes during the stress unloading process. Moreover, 45 of the 61 apparent resistivity anomalies were consistent with the mechanism of resistivity change under stress. These apparent resistivity anomalous changes before earthquakes may be related to the seismogenic processes such that the resistivity change is caused by medium deformation

Analysis of intravitreal injection of triamcinolone acetonide before vitrectomy for retinal detachment associated with choroidal detachment

AIM:To observe the clinical effects of intravitreal injection of triamcinolone acetonide(TA)before vitrectomy for retinal detachment associated with choroidal detachment.METHODS: Totally 23 cases(23 eyes)of retinal detachment associated with choroidal detachment in our hospital were treated by intravitreal injection of TA 4-5d before 23-Gauge micro-invasive vitrectomy combined with silicone oil injection. All the cases were followed up between 6 to 9mo. The anatomic retinal reattachment, visual acuity, intraocular pressure and postoperative complications were observed and analyzed. RESULTS: After the surgery, the visual acuity of all patients were improved, with 9 eyes better than 0.3(39%), and 18 eyes better than 0.05(78%). The BCVA at 1wk, 1 and 3mo and last follow up were different compared with before operations(PPPCONCLUSION: Intravitreal injection of TA before vitrectomy for retinal detachment associated with choroidal could improve the clinical effects, and decrease the difficulty of surgery while the injection itself is pretty safe

Certain Class of Analytic Functions Based on qq-difference operator

In this paper, we considered a generalized class of starlike functions defined by Kanas and R\u{a}ducanu\cite{10} to obtain integral means inequalities and subordination results. Further, we obtain the for various subclasses of starlike functions.Comment:

Dust detection and intensity estimation using Himawari-8/AHI observation.

In this study, simple dust detection and intensity estimation methods using Himawari-8 Advanced Himawari Imager (AHI) data are developed. Based on the differences of thermal radiation characteristics between dust and other typical objects, brightness temperature difference (BTD) among four channels (BT11–BT12, BT8–BT11, and BT3–BT11) are used together for dust detection. When considering the thermal radiation variation of dust particles over different land cover types, a dynamic threshold scheme for dust detection is adopted. An enhanced dust intensity index (EDII) is developed based on the reflectance of visible/near-infrared bands, BT of thermal-infrared bands, and aerosol optical depth (AOD), and is applied to the detected dust area. The AOD is retrieved using multiple temporal AHI observations by assuming little surface change in a short time period (i.e., 1–2 days) and proved with high accuracy using the Aerosol Robotic Network (AERONET) and cross-compared with MODIS AOD products. The dust detection results agree qualitatively with the dust locations that were revealed by AHI true color images. The results were also compared quantitatively with dust identification results from the AERONET AOD and Ångström exponent, achieving a total dust detection accuracy of 84%. A good agreement is obtained between EDII and the visibility data from National Climatic Data Center ground measurements, with a correlation coefficient of 0.81, indicating the effectiveness of EDII in dust monitoring.N/

参地糖脉宁汤对实验性2型糖尿病大鼠肝细胞脂肪变的效应*

Objective: To evaluate effects of Shendi Tang Maining Decoction on steatosis of hepatocyte in type 2 diabetes mellitus. Methods: Type 2 diabetes was induced, in female Wistar rats, by intraperitoneal injection of streptozotocin (25 mg/kg BW), fed with high sucrose and high lipid food. Animals were divided into 2 groups, type 2 diabetes control group (T2DMC group; n=12), type 2 diabetes invention group (T2DMI group; n=12). The age and sex matched Wistar rats served as normal control group (NC group, n=12). The rats of T2DMI group were fed with Shendi Tang Maining Decoction [active pharmaceutical ingredient 5mg/(kg BW•d)]. The rat of NC group and T2DMC were fed with cool boiled water. Results: Steatosis of hepatocyte was significant more in every group of type 2 diabetes than NC group (P<0.01). Steatosis of hepatocyte was significant less in T2DNI group than T2DMC group （P<0.01）. Hepatic PAS stain was significant lighter in every group of type 2 diabetes than NC group (P<0.01). Hepatic PAS stain was significant darker in T2DNI group than T2DMC group（P<0.01）. Conclusion: Shendi Tang Maining Decoction can ameliorate steatosis and glycogen quantity of hepatocyte in type 2 diabetes mellitus.目的  评价参地糖脉宁汤对2型糖尿病时肝细胞脂肪变的效应。方法  用小剂量STZ (25 mg/kg BW) 雌性Wistar大鼠腹腔内注射加含高糖和高脂饲料喂养造成实验性2型糖尿病模型，分为二组，2型糖尿病对照组（T2DMC组,n＝12），2型糖尿病干预组（T2DMI组,n＝12）。相同鼠龄的雌性Wistar大鼠作为正常对照组（NC组，n＝12）。T2DMI组用参地糖脉宁汤[原药5g/（kg WD·d）]灌胃；NC组、T2DMC组用凉开水灌胃。观察参地糖脉宁汤对2型糖尿病时肝细胞脂肪变的效应。结果  T2DM各组大鼠肝细胞脂肪变显著多于NC组（P＜0.01），而T2DMI组肝细胞脂肪变显著少于T2DMC组。T2DM各组大鼠肝PAS染色密度显著低于NC组（P＜0.01），而T2DMI组肝细胞PAS染色深度显著高于T2DMC组。结论  参地糖脉宁汤能改善2型糖尿病时的肝细胞脂肪变和糖原含量