mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Relationship between Acute Organophosphours Pesticide Poisoning and Damages Induced by Free Radicals

To study the relationship between abnormal reactions of free radicals in bodies of patients with acute organophosphorus pesticide poisoning (AOPP) and damages induced by free radicals.Methods 58 AOPP patients and 58 healthy adult volunteers(HAV)were enrolled in an independent samples control design,in which spectrophotometric methods were used to determine the concentrations of nitric oxide(NO)and lipoperoxides(LPO)in plasma,and LPO in erythrocytes,vitamin C (VC),vitamin E(VE)and β-carotene (β-CAR)in plasma as well as activities of superoxide dismutase(SOD),catalase(CAT),glutathione peroxidase(GSH-Px)and acetylcholiesterase(AChE) in erythrocytes.Results:Compared with the average values of every biochemical parameter in the HAV group,the average values of LPO in plasma and in erythrocytes,and NO in plasma in the AOPP group were significantly increased(P=0.00001),while the average values of VC,VE,β-CAR in plasma as well as SOD,CAT,GSH-PX and AChE in erythrocytes in the AOPP group were significantly decreased(P=0.000001).The finding of Pearoson product-moment correlation analysis between the value of AChE in erythrocytes and the values of above biochemical parameters for 58 AOPP patients showed that there was a significant linear negative correlation between AChE in erythrocytes and LPO,NO in plasma,and LPO in erythrocytes(P=0.00001-0.001319),while there was a significant linear positve correlation between AChE in erythrocytes and VC,VE,β-CAR in plasma as well as SOD,CAT,GSH-Px in erythrocytes(P=0.000013-0.000824),The results of discriminant analysis of above chemical parameters for 58 AOPP patients and 58 HAV suggested that  the correct rates of discriminant analysis were increased to 100 3.395193e-313n the values of AChE and LPO in plasma and in erythrocytes,or AChE and others,were jointly used for the discriminant analysis ,Conclusion:The findings of the present study suggest that a series of free radical reactions in AOPP patients’ bodies are pathologically aggravated, and the discriminant analysis used the above biochemical parameters could markedly increase its correct rates for AOPP patients.
Heavy metals in water bodies purified by suspended substrate of rivers

The equations, which are used to describe the relationships of adsorption quantity(s), adsorption percent(P_a),aqueous equilibrium concentration(c) of heavy metal on river suspended substrates and the ratio of adsorbent to water(j), are developed when heavy metal adsorption on river suspended substrate satisfies with linear adsorption equation. The results, according to the simulation from heavy metal adsorption on suspended substrates of several main Chinese rivers from a previous research report, indicated that these developed equations could describe the linear adsorption processes in practice very well, meanwhile, the adsorption equilibrium constant of adsorbent for heavy metal was an intensity factor regardless of ratio of suspended substrates to water but strongly depended on media's pH. Furthermore, the suspended substrates of Yellow River gave stronger purification ability for Pb than for Cd and Cu. When Cd was purified by different river suspended substrates, it exhibited that the order of their purification ability for Cd was that of Songhuajiang> Zhujiang>Yellow River, which was consistent with their contents of cation exchange capacity(CEC). In addition, we estimated and compared the purification ability of river suspended substrates for cadmium, and the resulting purification percent was 37.64%, 64.58% and 50.98% for Songhuajiang River, Yangtze River and Zhujiang River, respectively.
Cobalt in alluvial Egyptian soils as affected by industrial activities

Twenty-five surface (0-20 cm) soil samples were collected from different locations in Egypt representing non-polluted,moderately and highly polluted soils. The aim of this study was to evaluate total Co content in alluvial soils of Delta in Egypt using the delayed Neturen activation analysis technique (DNAA). The two prominent gamma ray lines at 1173.2 and 1332.5 keV was efficiently used for ^60Co determination. Co content in non-polluted soil samples ranged between 13.12 to 23.20 ppm Co with an average of 18.16-4.38 ppm. Cobalt content in moderately polluted soils ranged between 26.5 to 30.00 ppm with an average of 28.3-1.3 ppm. The highest Co levels (ranged from 36 to 64.69 ppm with an average of 51.9-9.5); were observed in soil samples collected from, either highly polluted agricultural soils due to prolonged irrigation with industrial wastewater or surface soil samples from industrial sites.
Effect of strontium on crystallization of Mg2Si phase in Al-Si-Mg casting alloys

Optical microscope and SEM were used to observe the changes of the microstructure of Al-11.6%Si-0.4%Mg alloys with varying strontium additions and the effect of strontium on the crystallization of Mg_2Si phase was discussed. It is found that Mg_2Si phase nucleates on the surfaces of the eutectic silicon flakes in the unfully modified alloys, growing as meshwork or bamboo-shoot shape, however, very few and fine Mg_2Si particles phase are isolated at the boundaries of the eutectic cells in the fully modified alloys. Strontium has an important influence on the crystallization of Mg_2Si phase in Al-Si-Mg casting alloys and it is thought to be related to the increase of the amount of dendritic α phase and the modifying degree of eutectic silicon phase.
Reduction of insertion loss after annealing of silicon oxynitride optical waveguides

The insertion losses of silicon oxynitride (SiON) waveguides have been measured in the 1550 nm wavelength region. The waveguide structure consisted of a 2.0μm SiON waveguide core with a refractive index of 1.50, a 0.5μm SiO_2 upper cladding and a 5.0μm SiO_2 lower cladding with a refractive index of 1.45. It was found that the wavelength-dependent insertion losses of the waveguide were greatly reduced by annealing and the loss was decreased more than 5.7 dB/cm at 1550 nm after annealing at optimum conditions. The former was attributed to the reduction of the absorption caused by N-H and Si-H vibration modes and the latter was due to the improvement of the interface roughness and homogeneity in the waveguides after annealing.
Effects of Sterigmatocystin,Deoxynivalenol and Aflatoxin G1on Apoptosis of Human Peripheral Blood Lymphocytes in vitro

To explore the effects of Sterigmatocystin (ST), Deoxynivalenol (DON) and Aflatoxin G_1 (AFG_1) on apoptosis of human peripheral blood lymphocytes (HPBLs) in vitro and thus to further elucidate the putative roles of these three mycotoxins on human immunosystem. Methods The effects of ST, DON and AFG_1 on apoptosis of HPBLs were studied with cell culture, flow cytometric (FCM) DNA analysis and DNA agarose gel electrophoresis. Results DNA agarose gel electrophoresis results showed the characteristic "ladder" pattern of apoptosis in HPBLs treated with ST, DON and AFG_1. Flow cytometric DNA analysis revealed that typical subdiploid peaks of apoptosis in DNA histogram could be seen in all groups treated with the three mycotoxins. Significant time-effect and dose-effect relationships were found between the apoptosis rates and treatment time as well as concentrations of the three mycotoxins. Conclusion ST, DON and AFG_1 can induce apoptosis of HPBLs in vitro and may have some negative effects on human immunosystem.
Chemical behavior of organic compounds in the interface of water/dual-cation organobentonite

The sorption behavior of polar or ionizable organiccompounds, such as p-nitrophenol, phenol and aniline, in the water/organobentonite systems is investigated. Both adsorption andpartition occur to the sorption of organic compounds to dual-cationorganobentonites. The separate contributions of adsorption andpartition to the total sorption of organic compounds to dual-cationorganobentonites are analyzed mathematically in the first time. The factors to the contributions are also discussed. The results indicated that the contribution of adsorption and partition is related to the composition and ratio of dual-cation surfactants exchanging onto the bentonite. The sorption of organic compounds to dual-cation organobentonite is dominated by adsorption at low concentrations and by partition at high concentrations, making the organobentonites powerful sorbents for organic contaminants over wide range of concentrations.
Pattern of polycyclic aromatic hydrocarbons (PAHs) pollution in communication air of Hangzhou, China

Nine PAHs were surveyed in communication air of Hangzhou. The results indicated that the PAHs pollution is very serious and the total sum of 9 PAHs, on the average are 3.39- 13.82 μg/m3. The PAHs signatures for all streets are similar to each other. Multivariate statistical techniques were used to investigate source apportionment for PAHs. A factor analysis/multiple regression model was successfully applied to the study. The most important three PAHs sources in communication air are diesel emission, gasoline engine emission, coal-burning accounting for 61. 1 - 6.4%, 19.9 - 8.3%, 10.8 - 10.8% of total PAHs, respectively. The relationship for three source tracers and total PAHsis: [PAHs] =1.471(- 0.155)[Phen] + 2.538 (- 2.522)[1-Mepy] + 2.254 (- 0.943)[Chry] + 1.022 (- 1.767).
Chemical pretreatments at surface of WC-6% Co for diamond coatings

The WC-6%Co(mass fraction) substrate surfaces were chemically pretreated with the two-step etching method, using Murakami reagent for 3～7min, and then an φ(HNO3):φ(HCl)=4:1 solution for 1～15min. Diamond films were deposited on the substrates by a hot-filament chemical vapor deposition reactor . The results show that the Co content of the substrate surfaces can be reduced from 6% to 0.12% within the etching depth of 5～10μm, the surface roughness of the substrates is increased up to Ra=1.0μm, as well as the substrates hardness is decreased from HRA 89.5 to HRA 84.2 after the two-step etching. A slight preference towards {111} orientation can beobserv ed from the XRD patterns and SEM micrograph of diamond film on WC-6%Co sample. The morphology of small rice-like ballas diamond was observed on the WC-6%Co substrates. A typical Raman spectrum with a sharp peak at 1332cm-1 for the diamond film indicates that the deposited films are good-quality polycrystalline diamond. The indentation testing shows that the adhesion between diamond film and the substrate after HFCVD deposition is good.
Microbial Aspects of Anaerobic BTEX Degradation

Combined with conventional methods,developments in both geochemical (delineation of redox processes)and molecular microbial methods(analysis of 16S rDNA genes and functional genes)have allowed us to study in details microorganisms and genes involved in the anaerobic degradation of benzene,toluene,ethylbenzene and xylene(BTEX)under specific redox conditions.This review sumarizes recent research in this field.The potential for anaerobic BTEX degradation is widely spread.Specific groups of microorganisms appear to be involved in degradation under different redox conditions,Members of the Axoarcus/Thauera cluster perform BTEX dergradation under denitrifying conditions,Geobacteraceae under Fe(Ⅲ)reducing conditions and Desulfobacteriaceae under sulfate reducing conditions.The information so far obtained on biochemistry and molecular genetics of BTEX degradation indicates that each BTEX compound is funneled into the central bnzyol-CoA  Pathway by a different peripheral pathway.The peripheral pathways of per BTEX compound show similarities among different physiological groupss of microorganisms.We also describe how knowledge obtained on the microbial aspects of BTEX dergradation can be used to enhance and monitor anaerobic BTEX degradation.
Investigation of the magnetic domain structure of (PtCoPt)/Si multilayers by magnetic force microscopy

The domain structure of (PtCoPt)/Si multilayers in the dc demagnetized state has been investigated by magnetic force microscopy. The domain structure is found to change dramatically as the thickness of the non-magnetic Si sublayer (t_(Si)) increases. Together with the analysis of magnetic properties, the variation of the domain period indicates that the domain wall energy decreases. Using the model developed by Draaisma and de Jonge, the domain wall energy is obtained.
Morphologies and microstructures of carbon nanotubes prepared by self-sustained arc discharging

We have investigated the morphology and microstructure of carbon nanotubes and nanoparticles in cathode deposits prepared by self-sustained arc discharge. Scanning electron microscopy images indicate that there are two regions exhibiting different morphologies on the top surface of the cathode deposits. In the central region, there is a triangular pattern of spots with a diameter up to 100μm, which consists of carbon nanotubes and nanoparticles. In the fringe region, carbon nanotubes and nanoparticles are distributed randomly. In addition, carbon nanotubes in the central region have a larger inner diameter, compared with those in the fringe region. The outer diameter distribution of tubes in the central region is narrower than that of tubes in the fringe region, while the former has a smaller peak value than the latter. For the nanoparticles, they exhibit a different behaviour from the tubes existing in the same region. The difference between the microstructure of tubes or particles in the two regions is attributed to the different temperatures and temperature gradients during their formation.
A design of novel type superconducting magnet for super-high field functional magnetic resonance imaging by using the harmonic analysis method of magnetic vector potentials

The approach of expanding the magnetic scalar potential in a series of Legendre polynomials is suitable for designing a conventional superconducting magnetic resonance imaging magnet of distributed solenoidal configuration. Whereas the approach of expanding the magnetic vector potential in associated Legendre harmonics is suitable for designing a single-solenoid magnet that has multiple tiers, in which each tier may have multiple layers with different winding lengths. A set of three equations to suppress some of the lowest higher-order harmonics is found. As an example, a 4T single-solenoid magnetic resonance imaging magnet with 4×6 layers of superconducting wires is designed. The degree of homogeneity in the 0.5m diameter sphere volume is better than 5.8 ppm. The same degree of homogeneity is retained after optimal integralization of turns in each correction layer. The ratio Bm/B0 in the single-solenoid magnet is 30% lower than that in the conventional six-solenoid magnet. This tolerates higher rated superconducting current in the coil. The Lorentz force of the coil in the single-solenoid system is also much lower than in the six-solenoid system. This novel type of magnet possesses significant advantage over conventional magnets, especially when used as a super-high field functional magnetic resonance imaging magnet.
Transport properties under the influence of finite friction

Using the Langevin Monte Carlo method, the influence of friction on the directed motion of a Brownian particle driven by an external noise source is investigated. The results show that the existence and change of the environment friction influence the establishment and development of the steady motion of a Brownian particle derived by non-equilibrium fluctuation. The most probable correlation time, which corresponds to the maximum current, is inversely proportional to the friction coefficient. The abnormal transition of the current with different friction appears because of the coupling between the effective ratchet potential and coloured noise intensity.
Influence of intensity on the steady and transient state space-charge fields in photorefractive polymers

We have proven theoretically that there are sublinear, linear and superlinear relations between the response rates and total incident intensity for different cases of traps in photorefractive polymer materials. These relations were observed in inorganic photorefractive crystals many years ago. Also, the steady-state space-charge field is a function of the total incident intensity, which has also been found in inorganic photorefractive crystals. We have measured the relations of the steady-state diffraction efficiency and the response rate with respect to the total incident intensity in the photorefractive composite consisting of the polymer (N-vinylcarbazole) (PVK) doped with 4,4'-n-pentylcyanobiphenyl (5CB) and C_(60). The results obtained show that the composite belongs to the case of low trap density.
A preconditioner for coupling system of natural boundary element and composite grid finite

In this paper, based on the natural boundary reduction advanced by Peng and Yu, we discuss a coupling BEM with FEM for the Dirichlet exterior problems. In this method the finite element grids consist of fine grid and coarse grid so that the singularity at the corner points can be handled conveniently. In order to solve the coupling system by the preconditioning conjugate gradient method, we construct a simple preconditioner for the "stiffness" matrix. Some error estimates of the corresponding approximate solution and condition number estimate of the preconditioned matrix are also obtained.
Investigation of titanium nitride coating by broadband laser ultrasonic spectroscopy

We present a laser ultrasonic method to investigate a titanium nitride (TiN) coating specimen. The technique is based on the principle of surface acoustic wave (SAW) dispersion during acoustic propagation on a half-space with the presence of a thin layer. Due to the high efficiency of laser line-source excitation, we have been able to generate and detect a SAW with an excellent signal-to-noise ratio in a wide frequency band. An inverse fitting algorithm was employed to extract simultaneously the thickness and the elastic parameters of the TiN coating from the experimental SAW velocity dispersion curve.
广泛性发育障碍和抽动障碍合病的初步探讨

我们在临床工作中，常常能观察到一个病人在某一特定的时间内患者两种或两种以上的疾病，我们把这种现象称为合病(comorbidity)。近二十年来，随着精神疾病诊断标准的不为怕完善及多种评定工具的问世，精神疾病合病现象亦引起了越来越多临床工作者及科研人员的关注。当然迄今为止合病的研究仍然是精神病学领域最有争议的问题之一，合病现象是几种独立疾病在同一个体共存，还是有别于独立疾病的一种新的疾病类型？这个问题目前还没有定论，有待进一步研究证实。广泛性发育障碍(pervasive develomental disorders, PDD)是指一组起病于婴幼儿期的全面性精神发育障碍，虽然病因不详，但都具有人际交往和沟通模式的异常，常伴有刻板及仪式化的动物，有特殊的兴趣，主要包括儿童孤独症，Asperger综合征，Heller综合征，Rett综合征，其他广泛发育障碍及未特定的广泛发育障碍。近十年来国内外医学工作者对广泛性发育障碍进行了大量研究，同时国外文献对广泛性发育障碍合病抽动一秽语综合征及慢性运动抽动障碍进行了一些研究和报道，但至今国内尚无报道。本文对4例同时罹患广泛性发育障碍及抽动障碍的患者进行临床分析，旨在探讨此类患者的临床特征，认识合病现象，对临床训练和科学研究提供参考。
Investigation on the syntheses and structures of Y~(III) complexes with aminopolycarboxylic acids (IV)

This paper deals with the structure of the Y~(III) complex with aminopolycarboxylic acids, synthesis and structural determination of the complex (NH_4)[Y~(III)(edta)(H_2O)_3]-3H_2O (edta = ethylenediaminetetraacetic acid). The crystal and molecular structures of the (NR_4)[Y~(III)(edta)(H_2O)_3]-3H_2O complex have been determined by single-crystal X-ray structure analysis. The crystal of the complex (NH_4)[Y~(III)(edta)(H_2O),] -3H_2O belongs to orthorhombic crystal system and fdd2 space group. The crystal data are as follows: a = 1.944 1(9) nm, b = 3.545 9(18) nm, c = 1.219 6(6) nm, V= 8.407 (7) nm~3, Z= 16, M_r= 503.25, D_c = 1.590 g·cm~(-1), μ = 2.844 mm~(-1) and F(000) = 4 160. The final R and R_w are 0.048 6 and 0.133 2 for 3 388 (I>2σ(I)) unique reflections, respectively. The complex anion [Y~(III)(edta)(H_2O)_3] has a pseudo-monocapped square antiprismatic nine-coordinate structure in which the six coordinate atoms (two N and four O) are from an edta ligand and three water molecules coordinate to the central Y~(III) ion directly. From the results it can be predicted that the Y~(III) ion can also form a nine-coordinate complex with ttha (=triethylenetetraminehexaacetic acid) ligand, so the ra-dioactive complex anion [~(90)Y~(III)(Httha)]~(2-) can supply a free carboxyl group (-CH_2COOH) being used for molecular embellishment to form the TDDS for the treatment of cancers.
How to control a geometric quantum gate

In this paper, we detail the theoretical ideas which are used to explain the mechanism of the laser controlling the geometric quantum gates introduced in the work by Ekert et al. (Ekert A, Ericsson M, Hayden P, Inanori H, Jones J A, Oi D K L and Vedral V 2000 J. Mod. Opt. 47 2501). We have introduced a two-level Hamiltonian system and directed to solve this system and then obtained the probability distribution of this two-level system. We also show the relationships between the external laser fields and the transition of the qubit in the two-qubit controlled-phase gate and how the transition of the qubit depends on the external laser fields and the states of the controlled qubit.
Cathodic electrolysis method of depositing cerium conversion films on industrial pure aluminum

Two two-step techniques, called TS2/TS7 and TS3/TS7, respectively, have been developed to form cerium conversion films on the surface of industrial pure aluminum. The tested material was cathodically electrolyzed in the alkaline solution containing cerium salt, and uniform films containing cerium were obtained after the two-step treatment. It is found that the films obtained by TS2/TS7 and TS3/TS7 techniques are about 4.0 and 3.0 um in thickness, respectively. The material has better corrosion resistance in the chloride solution after the two-step electrolysis treatment compared with the one-step treated and naked specimens.
Comparison between young and old patients with lung cancer

Objective: To compare the clinical characteristics, histological types, stage at diagnosis and treatment between young (< or = 40 years) and older (> or = 70 years) patients with lung cancer. Methods: The study was designed as a retrospective review of 808 lung cancer patients referred to the Sir Run Run Shaw Hospital over a 6-year period from 1995 to 2001. Data regarding demographics, presentation symptoms, histology, tumor staging, and treatment modality were obtained from all patients. Results: We found significantly more female patients and adenocarcinoma in the younger group compared with the older patients. Cough was the most common presenting symptom in both the younger and older groups followed by dyspnea, hemoptysis in the older group or chest pain in the younger group. There was no difference in the stage of disease at initial presentation between the younger and older groups. The young patients tended to receive aggressive treatment more readily than the older patients, and the older patients frequently received supportive care only. Conclusion: The female sex and adenocarcinoma were predominant in young patients compared with the older patients. Young patients tended to receive more aggressive treatment and may have better survival.
Cathepsin B expression and its relationship with microvessel density and biological behaviour of colorectal carcinoma

Objective: To investigate cathepsin B(CB) expression in colorcctal carcinoma and its relationship with microvessel density (MVD) and biological behavior. Methods: CB and MVD were detected by immunohistochemistry in 47 cases of colorectal carcinoma. Results: The expression of CB in mucinous colorectal carcinoma was significantly higher than that in no-mucinous colorectal carcinoma. There was significant difference (P<0.05). The MVD in group with positive CB was stronger than that in group with negative CB. There was also significant difference (P<0.05). Conclusion: The results suggest that CB expression has correlation with MVD, invasion and metastasis in colorectal carcinoma, especially in mucinous colorectal carcinoma.
精神科导诊护士如何与病人及家属接触沟通

患者来医院就诊，第一个接待他的是导诊护士。因此，导诊护士是医院与社会之间联系的桥梁和纽带。导诊护士与病员之间的沟通致关重要，当病员来到门诊时给病员一个微笑，送上一杯热水，给一上尊敬的称呼等，都能使病员及家属感到亲切，并且感到在医院如同在家里一样。这样会给病员及家属留下一个好的印象，对建立病人与医护之间的关系起着事半功倍的作用。所以，导诊护士与精神病人接触沟通时必须做到如下几点。
中老年男性性自慰致直肠异物12例报告

我们从1994年至今共收治12例中老年男性直肠异物患者，在诊治过程中我们注意到这些直肠异物病例均与男性性行为方面有一定联系，于是收集了部分相关资料，现报告如下。一般资料：12例均为男性患者，年龄48～76岁，平均67.2岁。