[Unity and separation of lifting-thrusting and twirling reinforcing-reducing manipulation].

To analyze the collaborative use and separation reasons of lifting-thrusting and twirling reinforcing and reducing manipulation. Lifting-thrusting manipulation and twirling manipulation are two important contents of acupuncture methods. In traditional acupuncture and moxibustion, the two methods were used in reinforcing and reducing concert, which was mainly related to the therapeutic thought guided by the qi-blood theory and the influence of the human body structure on the technique manipulation. After the Republic of China, the separation of lifting-thrusting manipulation and twirling manipulation gradually appeared. It was related to the widespread use of "scientific acupuncture method" in later generations and the integration of neuroscience into the acupuncture treatment system.

A highly selective fluorescent sensor for Fe3+ based on covalently immobilized derivative of naphthalimide.

In this paper, the fabrication and analytical characteristics of fluorescence-based ferric ion-sensing glass slides were described. To fabricate the sensor, a naphthalimide derivative (compound 1) with a terminal double bond was synthesized and copolymerized with 2-hydroxyethyl methacrylate (HEMA) on the activated surface of glass slides by UV irradiation. Upon the addition of Fe(3+) in 0.05 mol/L Tris/HCl (pH 6.02) at 25 °C, the fluorescence intensity of the resulting optical sensor decrease, which has been utilized as the basis for the selective detection of Fe(3+). The sensor can be applied to the quantification of Fe(3+) with a linear range covering form 1.0×10(-5) to 1.0×10(-3) M and a detection limit of 4.5×10(-6) M. The experiment results show that the response behavior of the sensor to Fe(3+) is pH-independent in medium condition (pH 5.00-8.00) and exhibits high selectivity for Fe(3+) over a large number of cations such as alkali, alkaline earth and transitional metal ions. Moreover, satisfactory reproducibility, reversibility and a rapid response were realized. The sensing membrane was found to have a lifetime at least 2 months. The accuracy and the precision of the method were evaluated by the analysis of the standard reference material, iron in water (1.0 mol/L HNO3). The developed sensor is applied for the determination of iron in pharmaceutical preparation samples with satisfactory results.

Methyl 2-(4-chloro-3,5-dinitro-benz-amido)-acetate.

The title mol-ecule, C(10)H(8)ClN(3)O(7), is twisted with the dihedral angle between the amide and benzene ring being 38.75 (11)°. The C-N-C-C torsion angle between the amide and acetyl groups is -150.1 (2)°. Finally, each nitro group is twisted out of the plane of the benzene ring to which it is connected [O-N-C-C torsion angles = 34.0 (3) and -64.5 (3)°]. Linear supra-molecular chains along [010] and mediated by N-H⋯O hydrogen bonds between successive amide groups dominate the crystal packing. The chains are consolidated into the three-dimensional structure by C-H⋯O contacts.