Hierarchical Porous NiO/β-NiMoO Heterostructure as Superior Anode Material for Lithium Storage.

Ternary transition metal oxides (TTMOs) have attracted considerable attention for rechargeable batteries because of their fascinating properties. However, the unsatisfactory electrochemical performance originating from the poor intrinsic electronic conductivity and inferior structural stability impedes their practical applications. Here, the novel hierarchical porous NiO/β-NiMoO heterostructure is fabricated, and exhibits high reversible capacity, superior rate capability, and excellent cycling stability in Li-ion batteries (LIBs), which is much better than the corresponding single-phase NiMoO and NiO materials.

Metal-organic framework derived leaf-like CoSNC nanocomposites for supercapacitor electrodes.

The designed construction of micro-/nano-structures and multi-composites on electrodes showed a promising prospect to improve electrochemical properties in supercapacitors. Herein, a facile carbonizing strategy was adopted for fabricating leaf-like CoSNC nanocomposites, which possess both the sheet structure and multi-composites of well-dispersed CoS2 nanoparticles in N-doped carbon frameworks. First, the leaf-like nanocomposites with high aspect ratios effectively shortened the ion/electron transmission paths and exposed more faradaic redox sites.

Coprecipitation-Gel Synthesis and Degradation Mechanism of Octahedral LiMnNiCoO as High-Performance Cathode Materials for Lithium-Ion Batteries.

The octahedral core-shell Li-rich layered cathode material of LiMnNiCoO can be synthesized via an ingenious coprecipitation-gel method without subsequent annealing. On the basis of detailed X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and electron energy loss spectroscopy characterizations, it is suggested that the as-prepared material consists of an octahedral morphology and a new type of core-shell structure with a spinel-layered heterostructure inside, which is the result of overgrowth of the spinel structure with {111} facets on {001} facets of the layered structure in a single orientation. The surface area of LiMnNiCoO crystals where the spinel phase is located possesses sufficient Li and O vacancies, resulting in the reinsertion of Li into position after the first charge and maintenance of the interface stability via the replenishment of oxygen from the bulk region.

Primary Left Tibial Epithelioid Hemangioendotheliomas With Multiple Metastases Revealed by FDG PET/CT Imaging.

Bone epithelioid angiosarcoma is an extremely rare osseous malignancy with an aggressive and destructive biological behavior. We present FDG PET/CT findings of a 59-year-old woman with left lower limb pain for 1 month. The images revealed abnormal activity in both left fibula and left tibia.

[Submucosal tunneling endoscopic resection in the treatment of esophageal submucosal tumors originating from muscularis propria layer].

Objective: To evaluate the short-term outcomes and complication management of submucosal tunneling endoscopic resection(STER) for esophageal submucosal tumors (SMTs) originating from the muscularis propria(MP) layer.

Methods: Clinical data of 48 patients with esophageal SMTs from MP layer undergoing STER in the Department of Gastroenterology, the First People's Hospital of Xiangshan, Zhejiang, and the Endoscopy Center of Zhongshan Hospital, Fudan University, Shanghai between September 2013 and August 2014 were retrospectively analyzed. The clinicopathological features, complication management, and short-term outcomes were evaluated.

99mTc-MDP uptake in implantation metastasis of gastric cancer: the additional value of SPECT/CT.

A 47-year-old woman with a history of subtotal gastrectomy due to gastric cancer underwent bone scintigraphy to evaluate possible recurrent disease. The whole-body images revealed a single focus of elevated 99mTc-MDP activity in the right pubic region, which was located in the intrapelvic soft tissue on subsequent SPECT/CT images. Pathological examination after needle biopsy demonstrated that the soft tissue was an implantation metastasis from gastric cancer.