Drug Indexes are of significance for investigation on ancient patent medicine industry. Herein, we compared (10th year of Jiaqing Reign, 1805), (4th year of Xianfeng Reign, 1854 and 5th year of Tongzhi Reign, 1866) and (3th year of Guangxu Reign, 1877) to illustrate the business features of Hangzhou patent medicine industry in Qing Dynasty.The three pharmacies, Zhang Tongtai Tang, Ye Zhongde Tang and Hu Qingyu Tang, were all adept in utilizing ancient prescriptions that contained various preparations, emphasized commercial ethics and product qualities, distributed their products in flexible pattern and focused on distillation formula.
View Article and Find Full Text PDFPurpose The efficacy of neoadjuvant chemoradiotherapy (NCRT) plus surgery for locally advanced esophageal squamous cell carcinoma (ESCC) remains controversial. In this trial, we compared the survival and safety of NCRT plus surgery with surgery alone in patients with locally advanced ESCC. Patients and Methods From June 2007 to December 2014, 451 patients with potentially resectable thoracic ESCC, clinically staged as T1-4N1M0/T4N0M0, were randomly allocated to NCRT plus surgery (group CRT; n = 224) and surgery alone (group S; n = 227).
View Article and Find Full Text PDFThe morphology of crystalline precipitates in a solid-state matrix is governed by complex but tractable energetic considerations driven largely by volume strain energy minimization and anisotropy of interfacial energies. Spherical precipitate morphologies are favored by isotropic systems, while anisotropic interfacial energies give energetic preference to certain crystallographically oriented interfaces, resulting in a faceted precipitate morphology. In conventional solid-solution precipitation, a precipitate's morphological evolution is mediated by surface anchoring of capping molecules, which dramatically alter the surface energy in an anisotropic manner, thereby providing exquisite morphology control during crystal growth.
View Article and Find Full Text PDFThe Pb- and Sb- dual nanostructured PbTe system exhibits anomalous electronic transport behavior wherein the carrier mobility first increases and then decreases with increase in temperature. By combining in situ transmission electron microscopy observations and theoretical calculations based on energy filtering of charge carriers, we propose a plausible mechanism of charge transport based on interphase potential that is mediated by interdiffusion between coexisting Pb and Sb precipitates. These findings promise new strategies to enhance thermoelectric figure of merit via dual and multinanostructuring of miscible precipitates.
View Article and Find Full Text PDFWe have investigated the possible mechanisms of phonon scattering by nanostructures and defects in PbTe-X (X = 2% Sb, Bi, or Pb) thermoelectric materials systems. We find that among these three compositions, PbTe-2% Sb has the lowest lattice thermal conductivity and exhibits a larger strain and notably more misfit dislocations at the precipitate/PbTe interfaces than the other two compositions. In the PbTe-Bi 2% sample, we infer some weaker phonon scattering BiTe precipitates, in addition to the abundant Bi nanostructures.
View Article and Find Full Text PDFDiabetes Res Clin Pract
November 2007
Background: Two typical pathological changes can develop in the type 2 diabetic nephropathy: one is diffuse glomerulosclerosis (DIF) and the other is nodular glomerular lesion (NOD). The aim of this study is to retrospectively investigate these two types of diabetic nephropathy and compare the characteristics of clinical findings and prognosis.
Methods: One hundred and twenty-four patients with biopsy-proven diabetic nephropathy, including 58 DIF and 66 NOD were investigated in this study.