Four N,N'-disubstituted 1,2-diaminobenzes (1a: R = t-Bu, 1b: R = adamantyl, 1c: R = Ph, 1d: R = Dipp) have been prepared and reacted with E[N(SiMe3)2]2 (E = Ge, Sn) to give the benzannulated N-heterocyclic germylenes 2a-d and stannylenes 3a-d. Germylene 2d and stannylenes 3a, 3c and 3d have been characterized by X-ray diffraction showing different types of intermolecular interactions in the sol...

to lack of improvement, she was transferred for rescue percutaneous coronary intervention. Successful percutaneous coronary intervention was performed on the left anterior descending artery, although persisting slow flow was noted (Figs. 1B and 1C, Online Video 1). Diffuse narrowing of the distal left anterior descending artery was also observed, suggesting external compression of the vessel. T...

A 54-year-old patient was seen for a tumor on the upper lip present for 4 months and clinically compatible with a basal cell carcinoma (Figure 1A). This was surgically removed. Histopathology revealed a clearly defined tumor proliferation composed of lobed formations of cells with clear cytoplasm presenting the typical peripheral palisading of trichilemmoma (Figure 1B). The periphery contained ...

The recent discovery of three Earth-sized, potentially habitable planets around a nearby cool star, TRAPPIST-1, has provided three key targets for the upcoming James Webb Space Telescope (JWST). Depending on their atmospheric characteristics and precise orbit configurations, it is possible that any of the three planets may be in the liquid water habitable zone, meaning that they may be capable ...

Two picrotoxane sesquiterpene lactone glycosides, nepalactones A (1) and B (2), and one new coumarin, nepalarin (3), were isolated from the root barks of the poisonous plant Coriarianepalensis. Their structures were elucidated via HRESIMS and 1D and 2D NMR spectroscopic analyses, and further verified via transformation methods. In addition, compounds 1-3 and five semisynthetic congeners (1a-e) ...

In continuation of IRS-1C/1D mission, Resourcesat mission was planned for integrated land and water resource management. Resourcesat was launched on 17 October 2003. This satellite carries three multi-spectral cameras with variable swath and different spatial resolution. Data quality evaluation (DQE) system characterizes payload and platform performance and its impact on radiometric and geometr...

A 73-year-old diabetic man underwent multislice computed tomography (MSCT) and noncontrast T1-weighted (T1W) magnetic resonance imaging (MRI) for the evaluation of atypical chest discomfort after an exercise ECG was nondiagnostic. The MSCT demonstrated a low-density positive remodeling plaque and spotty calcification without significant stenosis in the proximal segment of the right coronary art...

Case 1 A 14-year-old girl with a known diagnosis of systemic lupus erythematosus came to our department with the initial complaint of headache. Brain MRI revealed a normal brain parenchyma in all sequences. In addition, an incidental falcine sinus was observed in its entire length in sagittal images (Fig. 1A). The sinus connected the junction of the middle and posterior thirds of the superior s...

servatively. Follow-up at 4 months showed spontaneous resolution of the subretinal fluid on optical coherence tomography (Figure 1C); visual acuity had returned to 6/60 OS but the macular hole remained open. Four months later, the patient’s vision remained stable but the subretinal fluid had returned. An inverse pseudohypopyon was visible at the macula (Figure 2), and optical coherence tomograp...

Picture 1A. Initialy sagital T2-weighted MRI of the spine showed a slight deviation of the spinal cord at T2/3 level (arrow). Picture 1B. Five years later, spinal MRI shows that the anterior displacement of the spinal cord is worsened with deformity on sagital view. Picture 1C. Axial MRI shows spinal cord is displaced ventraly and to the left without any tumor in the subarachnoid space. Picture...